CONTEN

CONTENT
I、Introduction.......................................................................................................................... 2
II、Specification ....................................................................................................................... 5
2.1 Main Technical Parameters ......................................................................................... 5
2.2 Installation Dimension ................................................................................................ 6
III.Safety Precautions ................................................................................................................ 7
3.1 Safety Precautions ....................................................................................................... 7
3.2Basic Operation ............................................................................................................ 9
IV. Installation and Commissioning ........................................................................................ 10
4.1 Electrical configuration ............................................................................................. 10
4.2 Installation and commissioning.............................................................................. 12
V. Operating Instructions ........................................................................................................ 18
5.1 Panel switches ........................................................................................................... 18
5.2 Fine adjustment hand wheel ...................................................................................... 19
VI. Adjustment ........................................................................................................................ 20
6.1 Adjustment of worktable ........................................................................................... 20
6.2. Adjustment of paper feeder ...................................................................................... 21
6.3 Adjustment of paperweight ....................................................................................... 22
6.4 Adjustment of cutting blade ...................................................................................... 23
6.5 Horizontal degree adjustment of cutting blade.......................................................... 24
6.6 Adjustment of pressure .......................................................................................... 25
VII. Replacement of parts ....................................................................................................... 26
7.1 Replacement of cutting blade ................................................................................. 26
7.2 Replacement of cutting piece ................................................................................. 28
7.4 Safety Screw Replacement ..................................................................................... 30
VIII. Lubrication, Maintenance and Repair ............................................................................ 31
IX. Structure and Operating Principle ..................................................................................... 32
9.1Action principle.......................................................................................................... 32
9.2 Structure of cutting head ........................................................................................ 34
9.3 Paper pressing assembly ........................................................................................ 34
9.4 paper feeder transmission（Sees the part name） .................................................... 35
9.5 Hydraulic parts ....................................................................................................... 35
9.6 Cutting part ......................................................................................................... 37
Ⅹ、Description of Electric Circuits ....................................................................................... 39
10.1 Electrical Schematic Diagram ................................................................................. 40
10.2 List of electrical elements ....................................................................................... 44
Ⅺ、 PES Protective Grating of the Paper Cutter .................................................................. 48
Ⅻ、Common Trouble Analysis and Elimination Method ...................................................... 51
 Introduction

I、Introduction

Welcome to use paper cutting machine, which features in，Please be sure to

carefully read this manual and keep it for future operation needed.

Please use it correctly only on the basis of understanding the full

content

1.1 General
1、 High cutting performances, suitable to cut various sizes of paper and print
sheet.
2、Dual-rail device, liquid crystal display, cutting size resolution is up to 0.1 mm.
3、Chromeplated worktable with an air cushion device makes it easy to use and
durable.
4、Rapid boosting system provides adjustable pressures.
5、Safety system, such as photoelectric protection devices and two-hand linkage

2
 Introduction

1.2 Machine Parts Description

LCD display Control Keyboard

Cutting piece
Panel ejection Installment
Flat plate adjustment screw Adjusting nut switch board
Panel switches
Photoelectrical
box
(safety) Motor cover Tie rod of cutting
bed

Open

Adjusting window lid

Active surface
window

Oil level sight galss

Oil discharge screw

Pedal for Pressure gauge

Electrical cabinet Pressure adjustment hand
wheel

Paperweight Fuselage
Eccentric shaft for adjustment of cutting bed
horizontal degree
Worm wheel observation
window

Paperweight adjustment bolt

Small leg of the machine

oil
tank
air Balance adjustment
pump bolt

3
 Introduction

4
 Specification

II、Specification

2.1 Main Technical Parameters

Type 1150DL
Maximum cutting width 115 ㎝
Maximum cutting length 115 ㎝
Maximum cutting height 16.5 ㎝
Maximum paper-pressing force 40000N
Cutting speed 45Time/min
Main motor power 4kw
Air pump motor 0.75 kw
Paper feeding motor 0.55 kw
Weight 3800 ㎏
Package 275×140×191 ㎝
Width (including small platform) 315 ㎝
Width (excluding small platform) 216 ㎝
Length 249 ㎝
Font table length 71.5 ㎝
Table height 90 ㎝
Voltage 380V 50HZ
Cable size 2.5mm2

5
 Specification

2.2 Installation Dimension

6
 Safety Precautions

III.Safety Precautions

The instruction manual involves all necessary safety information and most effective
operation information pertinent to the cutting machine. It is very important that any
personnel responsible for operation, maintenances or repairs and services of the
machine should carefully read it through.

3.1 Safety Precautions

1. Operator shall wear working suit and head cap to avoid harms due to involving of
part of clothing or hanging things into moving parts. The machine can be operated
only by one operator.

2. The machine is deigned according to pertinent standards to cutter and relevant

safety standards. Safety signs are stuck onto parts at a risk to people. It is necessary
to utilize and operate the machine according to design requirements and
stipulations in instruction manual in order to avoid from any personal harms or
machine damages and other materials.

3. The machine is applicable to cut paper sheets and paperboards primarily. If it is

expected to cut other kinds of materials, it is important to get written approval from
manufacturer. The manufacturer would not be responsible for any machine
damages or personal harms due to improper utilization of the machine

4. Operator shall be an authorized person and read carefully the instruction manual
before operating the machine.

5. After installation of the cutting machine, it is necessary to earth it.

6. Before start up of the machine, it is very important to check if any other materials
not related to cutting on the work table and if anyone else is working at the
machine.

7. Before starting every time, it is necessary to check if the safety system is reliable
and record inspection results into log (such as an infrared optoelectronic security
system)

8. All components and spare parts shall comply with technical specifications of
manufacturer shall obtain the written approval from manufacturer before utilization.
And other substitution pieces are forbidden. Manufacturer will not be responsible
for personal harms and machine damages due to violation operation.

7
 Safety Precautions

9. Special notices: it is strictly forbidden to touch blade edge of knife moving or hold
still otherwise it would cause serious harms such as fingers severance. Only trained,
qualified and authorized persons could wash or replace knives.

10. Paperweight is a part likely causing personal harm so it is strictly forbidden to

reach below knives or paperweight. Before pedaling, make sure it is safe around the
pedal.

11. Do not push or reach paper or paper board below knife during cutting process. If it
is required to reach beyond blade line, it is critically important to place protective
block under knife to protect from any unexpected mechanical or electrical
malfunction resulting in personal harms to operator.

12. During inspection and maintenance of the machine, it is important to cut off
power supply during handling with electrical system or motors. After inspection
please switch on power.

13. When replace or dispose used hydraulic oil, please be careful to avoid oil from
burning or scalding and prevent used oil from pollution to environment.

14. After installation, maintenance, repair of safety equipment released or removed off,
it is necessary to reinstall and inspect immediately and ensure all parts in safety.

15. When installing cutting machine, it is important to keep a minimum of one meter
of clearance space around the machine.

8
 Safety Precautions

3.2Basic Operation

3.2.1 Set basic data

3.2.2 Adjust the paper feeder to proper position and step the pedal
3.2.3 Press the cutting button by double hands

9
 Installation and Commissioning

IV. Installation and Commissioning

4.1 Electrical configuration

4.1.1Air plug configuration

Two cables the fuselage electrical cabinet to connect with Servo electrical machinery on the work
platform
One cables on the work platform connect with jack 1and jack on the electrical cabinet of the
machine.

10
 Installation and Commissioning

4.1.2 Power configuration

Only authorized electricians can carry out the electrical configuration of the
machine.

Power line as shown above

11
 Installation and Commissioning

4.2 Installation and commissioning

Only people assigned by Wandeli can carry out the installation of the machine!
Installation of the machine requires some professional skills, so only professional people trained
by Wandeli can carry out the installation.
Installation place shall meet the following conditions:
◇ no vibration
◇ plain concrete floor, and the strength of concrete is: a min of Bn25
◇ enough space for handling
◇ plain floor for people to handle machine safely
◇ in compliance with the minimum clearance space around the machine

4.2.1 Installation
After receiving the machine, please remove away all packaging materials carefully.
Inspect the machine and check the supplied parts with the machine according to a
packing list. Hang the machine frame to an appropriate position far away from
workshop (please be sure that eye bolts are tightened firstly.), then push the platform
assembly into frame gantry and place it at the I-shaped stop. Install left and right
supplementary platforms, side guide, small baffle and paper feeder onto the work
platform. Finally get done with electrical connection, earthing wiring, and power
cable.
4.2.2 Commissioning
Please check all fastening screws and then regulate the leveling of the machine.
Adjust the worktable to be vertical to a cutting head. Adjust the paper feeder front
face to be vertical to side guide. Equip with a ground blade, adjust the lower stop
point of the cutter head and the supplementary platforms at two sides

Lubricate all lubrication points. Insert the handle (supplied) into the left hole of a
bigger belt pulley. Turn the worm to move cutter head up and down one time. If move
normally and no any abnormal impact noise or block are found, then power on motor
to let the motor run idly and check if its rotation is at the same as the arrow direction.

12
 Installation and Commissioning
Machine installs the flow chart

13
 Installation and Commissioning

14
 Installation and Commissioning

15
 Installation and Commissioning

16
 Installation and Commissioning

17
 Operating Instructions

V. Operating Instructions

5.1 Panel switches

5
1

3
4
2

①Emergency stop button ②Lightening switch for blade aligning

③Power switch ④Start/stop knob of air pump
⑤Cutting bed function selection knob ⑥Start/stop button of main motor
1) Turn the power switch from “OFF” to “ON”

2) Press the start/stop button “ ” of the main motor to start it.

3) When the cutting bed function selection switch is at “ ” the machine is in

normal cutting mode；when changing blade, please firstly turn off the main motor and

wait until the motor stops completely, then adjust the switch to position to use the
professional knife changer.

Close down
(1)Wait till the automatic actions of the machine stop.
(2) Press the start/stop button “ ” of the main motor. The main motor stops.

18
 Operating Instructions

5.2 Fine adjustment hand wheel

Manual encoder (abbr. hand wheel) is used on the occasion of fine adjustment and
inconsiderable motion quantity. Using hand wheel, please make sure that the selection of

“start manual encoder” is effective in parameter setting. The hand wheel will be out of

service after switching off this option which could ensure to avoid the unnecessary errors in
mechanical vibration. One scale of rotation of the hand wheel makes the Pusher feed
0.01mm. Make sure not to make it rotate extremely fast. The transgression of designed
capacity in hand wheel rotating speed may lead to losing hand wheel signals. However, the
post-c distance will not be influenced.

19
 Adjustment

VI. Adjustment

6.1 Adjustment of worktable

Adjustment bolt

6.1.1 Adjustment of worktable Verticality

The worktable places across the rear beam of the frame at one
side and stands on its supporting leg at another side. The
worktable surface must be vertical to cutting blade, the cutting
quality will be affected.
1）and the worktable can go up and down by a rotary screw stem. If they are not
vertical to each other

2）Using the left/right adjustment bolt adjust the position of the worktable relative to
the frame.

20
 Adjustment

6.2. Adjustment of paper feeder

Parallel

Vertical

①Perpendicularity adjustment bolt、Fastening screw

②Horizontal degree adjustment bolt、Fastening screw
③-⑨Retaining screw
6.2.1 Adjustment of perpendicularity
Here are adjustment steps for the perpendicularity of the paper feeder’s work surface
to the worktable surface. Firstly loose 2 socket head cap screws③⑤ and the
fastening screw ① a little, turn the perpendicularity adjustment bolt and make the
feeder swing a little to achieve the desirable perpendicularity. Use a 150mm wide
seating ruler to measure the perpendicularity, and the error should be less than
0.07mm. After adjustment, tighten all screws.

6.2.2 Adjustment of horizontal degree

Here are adjustment steps for the horizontal degree of the paper feeder and the baffle.
Firstly loose a little 2 set screws④⑥ and the fastening screw②, then turn horizontal
degree adjustment bolt ②to keep the feeder vertical to the baffle. Use 500mm wide
seating ruler to measure the perpendicularity and the error should be less than
0.15/1000. After adjustment, tighten all screws.

21
 Adjustment

6.3 Adjustment of paperweight

After a long service period, the paperweight may be unparallel

in left side and right side. We can make adjustment to realize
re-parallel.

Adjustment steps ：
①Use a wrench to loose 2 lock nuts(M20).
②Use the wrench to adjust the left and right parallel adjusting nut,in the AB and use
the suitable thickness of sheet metal to make the pad to make the left and right
balance of the paper press.
③Tighten the lock nuts.

22
 Adjustment

6.4 Adjustment of cutting blade

Connecting seat

Nut
3
Adjusting
Nut Nut

Connecting
1 seat
Wrench

尺寸

等分 程序 7 8 9 + 手动 自动 退出

标签 删除 4 5 6 -

示教 插入 1 2 3 X

保存 F . 0 取消 ÷ ENT

菜单 快退 慢退 慢进 快进 确认

In order to avoid accident arisen from deeper cutting of the new

blades higher than old blade, please adjust the cutting bed height
manually every time when replacing new blades or ground blades
so as to realize an appropriate cutting depth of the cutting blade
into the cutting piece. Before adjustment of cutting knives, please shut off the main
motor and wait till the main motor stops.
Adjustment steps:
1）Be sure that the cutting machine is in the blade changing mode: firstly press the
main motor stop button to shut down the main motor. After confirming the main
motor keeps still, turn the function selection button switch to the middle position for

changing blade “ ”.
2）Determination of cutting depth: use a socket wrench and turn the belt pulley to
lower the cutting bed to the lowest position and observe the cutting depth of the blade
into the cutting piece appropriate or not (normal cutting depth is 0.5-1mm).

3) Achieve the normal cutting depth by fine turning adjustment nut。Loose the nuts at
two sides with a wrench. Adjust the adjusting nuts to get the desire length of the tie
rod. When the cutting bed goes down its lower position where the cutting depth of the
blade into the cutting piece reaches 0.5-1mm, tighten the nuts at two sides.

If a blade is found contacting with cutting piece only at one side,

please adjust the eccentric shaft at the rear of the main frame (refer
to the horizontal degree adjustment of cutting bed)

23
 Adjustment

6.5 Horizontal degree adjustment of cutting blade

Eccentric shaft adjustment

screw for blade horizontal
degree

If the cutting blade can only contact with the cutting piece at one
end, please adjust the eccentric shaft at the rear of main frame.
When a blade wears out 20mm, please use the screws at the
second row on the blade; when a blade wears off so seriously that
it could not be used any more, replace a new blade.
Adjustment steps：
①Use the special wrench to pull those two axis.
②Check whether the knife is in the same level.

Please be careful to install a blade onto the cutting bed. New

blade shall be installed at the first row from edge.

24
 Adjustment

6.6 Adjustment of pressure

6
4

600 800
1000
400

8
1200

1
200
1400
0 1500

10
0

The pressing force of paperweight can be regulated by adjusting

the system pressure. When the system pressure is 3.92MPa, the
pressing force equals about 14.7KN or so.

Adjustment steps：①Rotate the handle wheel for adjustment.

②Observe the oil pressure indicator table.

25
 Replacement of parts

VII. Replacement of parts

7.1 Replacement of cutting blade

7.1.1 Blade mounting diagram

Tighten the brake disc with 2XM12*65 hexagonal socket

head cap
screws firstly when operating manually.（shut off power)

1 2

Rotation
Wrench

Blade-mounting handle
Stow wood

Blade-mounting handle

26
 Replacement of parts

7.1.2 Blade demounting diagram

Tighten the brake disc with 2XM12*65 hexagonal socket
head cap screws firstly when operating manually.（shut
off power)

1 2

Rotation
Blade-mounting handle

Wrench

Stow wood

Rotation
Wrench

Blade-mounting
handle

Tool: Special spanner, special-purpose sleeve, attire knife handle,

wooden cushion.
Procedures: before changing a blade, please shut down the main motor and wait till
the motor stops thoroughly, then turn the function switch to the blade changing

position “ ”. As indicated in the figure, install a specific socket wrench onto the
socket head cap nut of the belt pulley to move the cutting head. Remove the blade
mounting fastening screws and use a specific socket wrench to turn clockwise a gear
so that the rack could lower. The blade, hanging by hooks at the bottom of the rack,
will lower to the stow wood along with the lowering of the rack. Use a
blade-mounting handle to remove the blade. Then use the blade-mounting handle to
mount a new blade onto the cutting bed plate and then turn counterclockwise the gear
and the rack will rise. Finally tighten those blade-mounting screws.

27
 Replacement of parts

7.2 Replacement of cutting piece

Cutting piece is made from rough plastic material.

Its wavy profile can let itself stay in the groove of the table
without requiring any glue or any screw.
Each cutting piece can be used 4 times.
7.2.1 Remove of cutting piece
1）Press the handle 8 as indicated in above drawing, then one end will rise.
2）Remove the cutting piece and clear the groove.

7.2.2 Insert of cutting piece

1）Insert the right end of a cutting piece into the groove right side and then press it
into the groove from right to left.

28
 Replacement of parts

7.3 Grinding of blade edge

The smooth and even of the paper edge depends on the blade edge profile, angles and
quality. The edge angle usually is 19°or so. The edge angle should be larger when
cutting harder papers
The following is about edge angles for cutting various materials for your references.

Edge angle, Cutting Times and Oil Cylinder Pressure References (Alloy Steel)）

Material Type Edge Cutting Cylinder

Angle Times pressure
Soft paper（cigarette paper, carbon paper, filter paper, blotting 18°～20° 1000
paper）, rubber paper Low
Industrial textile, wax cloth and clothing 18°～20° 250
Hard and solid paper (art paper, typing paper, writing paper, sized
21°～23° 500～800 High
paper, printing paper)
insulating paper, transparent paper, terylen paper, glass paper, 22°～24° 250～500
plastic-coated card Middle
Hard board, synthetic paper, leather, leatheroid, plastic film 20°～30° 200～350
Al, Sn, Zn foil 25°～35° Dependent Low

Every time before grinding edge, it is necessary to quench the

blade thoroughly to prevent from future annealing. For sharper
and smoother, blade edge shall be finely shined with whetstone
before using. When cutting, it is necessary to apply soap or earth wax onto the edge to
improve the durability of the blade and the cutting qualify. If it is difficult to get a
smooth cutting, please use whetstone to grind edge or re-grind edge

29
 Replacement of parts

7.4 Safety Screw Replacement

Damage: the screw of screw rod of the cutting bed is damaged (safety screw)
Reason: overload
Rectification: replacement by a new one

Before re-press the cutting button, do not move away the

material to be cut! Otherwise, cutting piece base will be
damaged.

Replacement steps:
1. Press the cutting button to move the blade and the pressing plate to the highest
position.
2. Move away any pile material onplate
Press the table.
3. Move away the front cover. Nut
4. Use a wrench to remove the damaged screw.
5. Replace by a new safety screw.
6. Tighten the screw by 60 scales.
7. Install the cover again.

30
 Lubrication, Maintenance and Repair

VIII. Lubrication, Maintenance and Repair

In order to guarantee the normal operation and reduce wearing of moving parts,
keep the desire precise, and extend the servicing life of the machine, it is important to
utilize the machine reasonably and lubricate systemically the moving parts and carry
out proper maintenance and repairs.
8.1 Lubrication

Lubrication points and methods are indicated as below:

1). Apply N46 oil to those parts requiring oil.
2). Apply 3# Li-based grease to those parts requiring grease.
8.2 Hydraulic oil
Normally, the oil in oil tank shall be replaced or filtered every 3-4 months. Oil filter
shall be cleaned regularly. Check the oil pressure in the oil duct often. Normal oil
temperature is 5°C～55°C.
The oil shall be pure and not acid without any moisture and solid material. Oil
duct and oil hole shall be kept through. Please be careful that the clutch could not be
lubricated.

31
 Structure and Operating Principle

IX. Structure and Operating Principle

9.1Action principle

Cutting assembly composes a cutting bed, a tie rod, driving parts and a main motor.
When pressing the start button of the motor, the motor drives a belt pulley to run idly
but a driving wheel is at the brake position still. A vane pump of a hydraulic system
starts running at the same time but a hydraulic cylinder does not work now. When
need a cutting, turn the function switch to the cutting mode position firstly and then
press the left cutting button and the right cutting button with two hands at one time.
Cutting will start now. The operating principle is: when pressing the two-hand linkage
buttons, the hydraulic cylinder starts and drives a paper presser. Driven by hydraulic
push rod brake friction disc joint pulley. Consequently the rotary action of the pulley
drives the worm and the worm wheel running. Via a transverse shaft on the swivel
arm at the shaft end of the worm wheel shaft, an adjustable tie rod brings the cutting
bed to go up and down. After a cutting cycle is finished, a compression stroke switch
of the collide block wheel fixed at the worm wheel shaft end will de-energizes the
magnet. The driving wheel goes leftwards driven by the spring and bonds with a
brake ring, then braking is realized. Now the reversal valve in the hydraulic system
returns its original position and hydraulic oil flows back to the oil tank. The paper
presser rises to its highest position and the compression stroke switch makes air pump
operate so that paper can be moved.

32
 Structure and Operating Principle

During cutting, cutting buttons must be pressed by two hands at one time till the
cutting bed drops to the lowest position and the cutting is finished. If release any
button in the period, the cutting bed will stop immediately. After a cutting cycle is
finished but the button is pressed still, the machine would not start another cutting
cycle due to its single cutting protection function.
For the clutch after a long service period, the brake friction ring and the driving ring
will experience wear, leading to the cutting force reduced. When skidding is found
during cutting, please adjust the clutch clearance. If a friction ring wears out, please
remove the locking screw, use a wrench to turn the bearing cover of the belt pulley
end and you will see the clearance changes. Use a feeler to check the clearance
between the friction and the driving wheel and tighten the locking screw if the
clearance reaches the desirable value. When the friction dick is found any rivet
exposed, please replace by a new one and re-adjust the clearance. The friction disc is a
kind of dry disc, so it is important to keep it clean otherwise it will cause brake
skidding and affect seriously the cutting force.

33
 Structure and Operating Principle

9.2 Structure of cutting head

The cutting bed is composed of a cutting head, a tool changing device, a blade,
and a tie rod. Via the tie rod, the cutting head can slide up and down along the frame.
The blade is fixed onto the cutting head with 10 screws.

9.3 Paper pressing assembly

Paperweight is a key part to assure a stable and smooth cutting.

Driving system of paperweight

Paperweight goes up and down along a vertical guide rail system. Via a tie rod, a swing link
and a connection rod, the paperweight is connected with a cylinder. When pressurized oil flows
into the cylinder, a piston will eject the swing link and the paperweight will be pulled down via a
connection rod, a swing link and a tie rod. The paperweight rises back by means of a spring. The
pulling force by spring can be adjusted with a screw rod (at the side of the left supporting leg).

34
 Structure and Operating Principle

9.4 paper feeder transmission（Sees the part name）

The paper feeder couples with the screw rod via a nut, the motor drives the long
screw rod and then paper feeder goes forewards or backwards. Turn a hand wheel and
realize the fine feed of the paper feeder, then it can achieve the size requirement.
The paper feeder on the worktable is an important to assure cutting quality, which is composed
of paper feeder, toothed plate, double guide rail, force transmission block, guide block, and a nut
as well as the nut holder on screw rod. The screw rod used for driving paper feeder is located at
lower middle position of worktable, drives the paper feeder to move longitudinally by means of
nut, nut holder and guide block. The guide rail below worktable can assure the vertical kinematic
accuracy of paper feeder. guaranteeing the parallelization precision between sheet pusher
working surface and cutter blade. The toothed plate is interlinked with paper feeder floatingly to
make sure contact the worktable closely during operation. A damper spring between toothed plate
and pusher frame can reduce the wearing of toothed plate and worktable surface.
The hand-wheel is rotated by hand to drive the paper feeder to move slightly so as to reach a
preset cutting size.

9.5 Hydraulic parts

A hydraulic system is installed inside the right supporting leg of the machine.
By the cylinder, the oil pump, the solenoid valve, the reflux valve, the pressurizing
valve and so on constitute.
After starting the motor, the pressurized oil will flow through the left position of the
solenoid valve directly to the oil tank. Now the oil pump is under no load.
If need the paperweight pressing separately, step on the pedal switch and let the
solenoid valve to turn to the right position.
As indicated for , when the pressurized oil flows into a big tank through the
solenoid valve, the paperweight will start press down but the cutting blade will not
press down. After release the pedal switch, the valve returns to its left position and the
paperweight returns to its original position driven by a spring.
If need cutting paper, press the two-hand linkage buttons. Now the solenoid valve
is at the right position , the pressurized oil will flow through the solenoid valve into
the big tank and bring the paperweight pressing down. When pressing force reaches a
defined value, the pressure relay will switch on and electromagnetic clutch closes
and cutting blade will go downwards. After a cutting cycle, travel switch will
cause the solenoid valve back to the left position. The pressurized oil returns to the
tank via the valve and electromagnetic clutch coil is de-energized, the cutting
bed and paperweight will return back its original positions.

35
 Structure and Operating Principle

36
 Structure and Operating Principle

9.6 Cutting part

The transmitting motion of the cutter can be realized when the main motor drives
the big triangular belt wheel via the triangular belt, and then the hydraulic pressure
frictional clutch pulls the cutting bed through worm shaft, worm wheel (see Fig) and
tie bar . After the cutting bed completes one up and down cyclical action, the cam on
the back of the worm wheel will touch the travel wheel, so that the two direct current
solenoid valves of the hydraulic system will turn off and return back. Under the
operation of the spring (Fig. Piece 3), the frictional clutch brake disk will apply the
brake to the worm shaft at once, and the big V-belt pulley will soon operate above the
worm shaft.
During the cutting, both hands must press two cutting buttons at the same time
within 0.5 seconds, and hold it until the cutting bed declines to the lowest position and
when the cutter cuts in the plastic cutter backbone-up strip. Before this, the operator
should keep either hand or both hands away from the button. Because it will make the
cutting bed stop declining immediately if the infrared photoelectric safety device is
sheltered. The cutting bed can continue to decline and complete the cutting only if
you put both hands on the button at the same time. During the return back of the
cutting bed, if you keep your hands away or put them on the button, or the
photoelectric safety device is sheltered, the cutting bed still can return to the highest
position and stop. The electrical control system can ensure the cutting bed not to
decline again, so as not to repeat the cutting action and ensure the safety of the
operators.
In order to make a convenient operation for the operators, this machine is installed
with a rotary switch of cutting light-beam indication line (Panel switches2). At this
time, the illuminating lamp on the worktable is off and there is a beam of light
displaying on the cutting object. That is the cutting position.
Because the braking mechanism operates frequently, the brake belt will easily be
worn out. If the gap becomes more distant, the frictional clutch action will slow down,
and it will cause the serious cutter-sliding danger. Thus, you must pay more attention
to the worn condition, and adjust the gap and change the brake belt termly. The
adjusting methods are as follows: unscrew the socket cap screw (Fig. Piece 2), and
adjust the hexagonal flat head set screw (Fig. Piece 1), so as to control the gap of the
clutch stop disk and the big V-belt pulley within 0.5~1.0mm, and then screw the four
socket cap screws.

37
 Structure and Operating Principle

38
 Description of Electric Circuits

Ⅹ、Description of Electric Circuits

The main motor M1 is controlled by a start/stop circuit consisting of AC contactor KM1 and
buttons ST1 and SB1.

The air pump motor M2 is controlled by a start/stop circuit consisting of AC contactor KM2 and
rotary switch SA2.

Fast feeding: Refer to schematic diagram of electric appliance. When pull the fine adjustment
handle outwards, NO contact of the inching switch QS2 closes, AC contactor KM3 picks up, and
paper feeder moves forwards quickly. When the feeder moves to a position about 40mm (100mm
when paper-pressing board mounted) to the blade edge, NC contact of the limit switchQS3opens,
AC contactor KM23is de-energized and released, the inching switch QS2 is out of action, thus
front limit is realized. Press the small button in the center of the handle inwards, NO contact of the
inching switch QS5closes, AC contactor KM4 picks up, and paper feeder moves backwards
quickly. When the feeder moves to a position about 1270mm to the blade edge, NC contact of the
limit switch QS6 opens, AC contactor KM4 is de-energized and released, the inching switchQS6is
out of action, thus back limit is realized.

NC contacts KM3-1 and KM3-1 make up an interlocked protective circuit. As shown in schematic
diagram of electric appliance, when the contactor KM3 and KM4 pick up or when using fine
adjustment handle, NO contactor KM3-2, KM4-2 and QS1 enable the contactor KA4 to pick up,
NO contactor KA4 to close, the braking electromagnet YC2 to energize, and the feeding screw rod
to release, thus the feeder can move forwards or backwards; when contactor KM3 and KM4 is
de-energized and released and NO contact SQ1-1 of the limit switch opens, the contactor KA4 is
de-energized and released, NO contact KA4 opens, and electromagnet YC2 is de-energized and
brakes, thus the feeder stops moving immediately and fast brake is realized.

Tread on the foot switch QS8, so the foot switch solenoid valve works, paper presser is lowered by
the hydraulic system, and the foot switch is released.

Limit switch QS1 is designed to release the brake of paper feeding screw rod and break (NC
contact QS1-2) the quick travel system when using fine adjustment handle.

Manually cutting process:

After the main motor starts up and runs normally, press bi-buttons SB2 and SB3 with two hands at
the same time, and the relay KA1 becomes energized and operates, and the normally open contact
KA1 closes. Then the solenoid valve YC1 becomes energized and closes. Then the paperweight
goes down fast and just when the paperweight reaches paper or paperboard the pressure in oil
cylinder quickly rises up to the defined value (2Mpa), then the pressure relay SQ1 operates and its
normally open contact closes, making the contactor KM5 become energized and close and
bringing knife bed move down,. So the paper cutting action is finished. When knife bed reaches its
extreme low position, travel switch QS9 is stricken and closes. Then the relay KA2 becomes
energized and closes and keeps still by itself and the normally open contact KA2 closes, the
contactors KM5 and KA1 become energized and close. Then knife bed rises automatically and

39
 Description of Electric Circuits

reaches its extreme high position, QS7 is stricken and trips out, the relay KA5 becomes
de-energized and the normally closed contact KA5-2 trips out, the relays KM5 and KA1 release,
solenoid valve YC1 and electromagnetic clutch YC2 return back their original positions. At this
time knife bed stops at its extreme high position and the paperweight rises and returns to its
original position. Therefore the whole cutting process is finished.

Another function of the relay KA1: after cutting process, if two-hand cutting buttons SB7 and SB8
is not released, the relay KA1 remains to pick up and block, NC contact KA1 keeps open status,
which will ensure that only one cutting process is done when two-hand cutting buttons SS1and
SB1 are pressed one time, despite of duration of time, to avoid continuous cutting.

Function of cutting/cutter changing switch SB3: Turn SB3 to cutter changing position, SA3-L1
will switch off main motor and control circuit; SA3-R closes, contractor KM5is energized and
picks up, electromagnet YC1 of the clutch is energized and picks up, which is convenient for
operator to change cutter. CAUTION: Do not place your hands or other items under the blade
edge to avoid machine damage or physical injury caused by downward movement of the cutting
bed driven by the main motor for incomplete stop.

Function switch of cutting bed:

a. When set the switch SB4 to “Cutting” position (left), NO contact SB4closes, and the
electric system is in a normal condition.

b. When set the switch SB4 to “No Cutting in” position (middle), NO contact SB4-L and
SB4-R open to disconnect the control circuit of contractor KM5, thus, the clutch will not
work, paper can be pressed firmly by pressure of the presser.

c. When set the switch to “Inching” position (right) and the switch SB3 to “Cutting”
position (left), NO contact SB4-R and SB3-L1 are energized, it will be possible to press
the inching button SB9 to allow the cutting bed to move as required. The function is used
when the cutting bed is moved for bolt removing when changing cutter.

When main engine and air pump start up normally, when cutting paper normally,
and when paperweight moves down, contactor KM2 becomes de-energized and air
pump and motor become de-energized; when stepping on pedals, the normally closed
contactor KM2 of QS8-2 becomes de-energized causing air pump stop running.

10.1 Electrical Schematic Diagram

40
 Description of Electric Circuits

Three-phase protection Air pump motor Paper-feeding motor Control transformer Illumination Photoelectric protection控制

L1 L2 L3

QF1
L11 L21 L31 57

QF2
SA1
56 Ties
L33
KM1 KM2 KM3 SA3

L12 L22 18V

~
U11 V11 W11 KA0

Servo driver 380V 220v 61 63

~ ~

U1 V1 W1 U2 V2 W2

M1 M2 M3 3 55

59

PE

HL1 HL2

41
 Description of Electric Circuits

Upper starting point and blower

Power and voltage control Main engine Cutting, jogging and knife changing control starting point control
Cutting tool control Infrared
control self-locking

3 12
KA9 SA4-2 KA6
ST1 KA2 KA5
9 SB2-1
KA8 KA7 SB2 SB2
SA2 16 19
KA0
SB1 KM1 KA8 KM5
5 SB3-1 SB4 KA3 KA1
QF3 2
1 KA1 25 KA4
11 15
KA1 16 QS7
26
SA4 KM3 SP KA5
7
24V
~
21 55 QS8 KA2
QS9-1 17 KA1
13
20
SA4-1 KA5 28 40 41 4
8
18 23
0

KM2 KM1 KA1 KM5 KA3 KA5 KA2 KA6 KA7 KA4

42
 Description of Electric Circuits

Silicone rectifier Electromagnetic Paper-pressing solenoid

03 05

KA3

011

KM5 KA1 QS9-2

QF4 04

09
01

07
28V
~

02
04 Yc1

43
 Lubrication, Maintenance and Repair

10.2 List of electrical elements

Switch panel

Symbol Name Size Usage Mounting position

SA1 Rotary switch LW2665-25 Power switch Switch panel
SA4 Rotary switch 22LAY16-20 Lighting for worktable, slit lamp changeover Switch panel
SA3 Rotary switch 22LAY16-22 Cutting/cutter changing selection Switch panel
ST1 Rotary switch APBB22N Main motor stop Switch panel
SB1 Rotary switch APBB22N Main motor start Switch panel
SB6 Rotary switch 11BN Detector switch of flat clamp Switch panel
SA3 Rotary switch 11X/31 Function selection of cutting bed Switch panel
SA1 Rotary switch 22LAY16-11 Start/stop of air pump Switch panel

Control circuit

Symbol Name Size Usage Mounting position

SB2 Cutting switch LX19K-B Cutting In front of worktable
SB3 Cutting switch LX19K-B Cutting In front of worktable
QS1 Inching switch VS10N061 Manual advance and retreat In manual shaft seat
C2 protection; release screw rod brake
QS4 Limit switch T2-8108 With front limit of paper pusher of In front of worktable
flat clamp
QS3 Limit switch T2-8108 Without front limit of paper pusher In front of worktable
of flat clamp
QS2 Inching switch VS10N061 Advancement of paper pusher In manual shaft seat
C2
QS6 Limit switch T2-8108 Limit of back travel of paper At the back of worktable
pusher
QS5 Inching switch VS10N061 Retreat of paper pusher In manual shaft seat
C2
QS7 Limit switch XCKN2145 Cutting completion and stop In worm gear case
P20C
QS9 Limit switch XCKN2145 Automatic raise of cutting bed In worm gear case
P20C
SP Pressure relay LX19-K Pressure relay In oil tank
QS8 Limit switch XCKN2118 Paper-pressing switch At end of foot-treadle
P20C
YC3 Coil of solenoid valve Paper pressing In oil tank
YC1 Coil of Movement of cutting bed In worm gear case
electromagnetic clutch
YC2 Electromagnetic coil Braking of screw rod Behind bearing block of screw
rod on worktable
Photoelectric encoder Counter Front end of screw rod
Proximity switch Verifier In the middle of the right-side
of worktable
M1 Motor Main motor In fuselage right undercarriage
M2 Motor Air pump motor Fuselage middle
M3 Motor Sending paper motor In behind of worktable

44
 Lubrication, Maintenance and Repair

6.Front limit（QS4） 8 .Back limit（QS6） 9 .Paper pusher braking（YC2） 10.Sending paper motor（M3）

45
 Lubrication, Maintenance and Repair

1.Rise limit（QS8）
2.Stop limit（QS7）
3.Coil of electromagnetic clutch
（YC1）
4.Main motor（M1）
5.Air pump motor（M2）
6.Foot pedal limit（QS9）
7.Pressboard signal switch
8.Knife signal switch
9. Total power source connection

46
 Lubrication, Maintenance and Repair

1. Emergency stop button

2. Lighting switch（SA4）
3. Power switch（SA1））
4. Air pump switch （SA2）
5. Trades knife switch（SA3）
6. Main motor start/ stop button
（SB1、ST1）
7. Pressure relay（SP）
8. Pressboard solenoid valve
（YC3）

47
 LGS Protective Grating

Ⅺ、LGS Protective Grating

11.1 Safe grating device

★ Performance guarantee
The amplifier is built in, and the modulated light source and synchronous scanning
mode are adopted so that it can fully resist external interference and be installed and
used conveniently.
★ Simple installation
The connection is realized by connectors or sockets, which is convenient, secure,
quick and simple.
★ Automatic monitoring
It is provided with internal self-diagnostic and monitoring functions and double-CPU
control, to ensure that output can be stopped immediately in case of abnormality.
Moreover, it has a testing terminal, which detects the work state of the grate at any
time. It meets the standard IEC61496-1/2 and has passed the certification of
European CE.
★ Safety and effectiveness
When the slitter goes out of order (power down, failure of internal components,
failure of connection, etc.), the relay will keep the disconnect mode, so that the slitter
cannot start up to effectively protect the slitter and personal safety.
★ Safety certification
UL special shielded cables are used for connection to ensure high noise immunity.
The products of this series have certified by European CE.
★ Emergency shutdown
It is provided with such special functions as shutdown in case of power down and
failure of internal components or connection, as well as stop signal output in case of
object intrusion, etc.
★ Safety standard
Stable and ultraspeed response design can meet the slitter safety standard in the
machinery industry.
★ Reliable guarantee of personal safety
It is suitable for safety detection for slitting machines and other relevant machinery
and can guarantee personal or property safety.
★ Double-relay output

48
 LGS Protective Grating

Opposite logic outputs of double relays can monitor each other, and there are two
sets of Normal Open and Normal Closed contacts for choosing.
★ Quick response
In case of intrusion in the protective area, the relay will disconnect so that the slitter
stops and the trouble lamp turns on at the same time.
★ Up-to-date technique
Up-to-date microprogramming technique and special ASIC technique are adopted so
that the protected distance is long and the resolution is high.

11.2 Technical parameter

Model LGS-8

Spacing of optical 40
axis

Number of optical 8
axis

Detection breadth 280

(mm)

Maximum detection 3m
distance (m)

Supply voltage DC24V±10% pulsation (P-P) below 10% or AC18V±10%; AC14V±10%

Current consumption Below 250mA

Respo0nse time Below 20ms

Resetting time 100ms

Output Single/double relay output, one set / two sets of NO and NC contacts, AC250V
2A(cosφ=1)

Output state ON when all optical axes are under the light

Light source Infrared LED

Indicator light Photic indicator Projector: power light (yellow); emission indicator light (green)
light: green
Receiver: power light (yellow), normal indicator light (green), trouble lamp
Shading indicator (red)
light: red

49
 LGS Protective Grating

Connection mode …… 4-core connecting cable

Case material Case: ABS Bracket: aluminum alloy or cold-rolled plate Front shroud: PMMA

Ambient light Incandescent light: illumination of photic surface 3000Lx; illumination of sunlight
resistance surface 10000Lx

Ambient temperature Working: -10~+45℃(unfreezing), Conserving: -40~+70℃

Ambient humidity Working: 35~85%RH, Conserving: 35~95%RH

Vibration Vibration frequency: 10~30Hz, Amplitude of vibration: 1.5mm, 2 hours respective on

X, Y and Z directions

Impact Acceleration: 500m/s²about 50g, 3 times respectively on X, Y and Z directions

Insulation resistance Above DC500V, 20MΩ

Dielectric strength AC1000V, 50/60Hz, 1 minute (0~40℃, 85%RH)

Level of protection IEC IP20

Working life Internal relay is not less than 100,000 times, electric 10,000 hours

50
 Troubleshooting

Ⅻ、Common Trouble Analysis and Elimination Method

Troubleshooting Summary
Troubles Possible reasons Elimination methods

Failure in photoelectric 1) Damage of chips on circuit card in 1) Check, repair and replace the
protection device and the photoelectric box, or damage of other damaged chips or other elements.
digital display always elements. 2) Remove the barriers and dirty
light on 2) Barriers on platform or dirty matters on matters.
optical eye.
Large errors between （1） 1) Loosening and displacement of digital 1)Tighten the digital correct piece
digital displayed size and correct piece, wrong position of reference 2) Check whether each contact is
actual size. calibrated point. loosening, and tighten it. Insulate the
2) Loosening and poor connection of each disturbance of electric grid and strength
contact in digital display circuit the grounding methods.
3) Loosening of joint screws of coder. 3)Tighten the screws
There have decimal in 1) The approach switch under worktable is 1) Replace the approach switch.
digital display, but damaged. 2)Adjust the approach switch to make
without any dimension 2) The approach switch is out of function sure the lightening on of red light when
display. when nearing the reference mark on the nearing the reference mark (keep the
screw rod nut, with the indication light not clearance between 1-2mm)
lighted.
When operating by both 1) The hydraulic pressure is lower than rated 1) Adjust the pressure till higher than
hands, no cutting is done value of pressure relay. 2.5MPa.
after the paperweight 2) The limit switch LX19K-B of pressure 2) Adjust the position of limit switch
arriving at its position, relay is not energized or damaged. LX19K-B, and tighten or replace the
and cutting indication 3) The electric clutch is out of operation. switch.
light does not turn on. 3) Check the carbon brush for any poor
contact or damage.
The cutting bed does not 1)The position of travel switch is not correct 1) Adjust the position of travel switch
stop at the highest (the stop switch on the transmission case ) fender wheel.
position. 2) The clearances of clutch are too wide, and 2) Adjust the clearances.
braking force is not enough. 3) Replace the friction disk.
3) Wearing of friction disk of clutch.
Cutting begins before 1)The preset pressure of relay is too low, 1) Set the pressure as normal
paper is not pressed which results in cutting begins before press requirement (about 2MPa), and adjust
enough, or the out the pressure relay and fine adjustment
paperweight moves with 2) Short circuit happens in pressure relay valve.
cutting bed to cause circuit, which results in cutting and pressing 2) Replace the travel switch of pressure
large cutting error. happen at the same time. relay.
3) Adhesion among the electric contactors. 3) Replace the contactor.
The hydraulic noise is 1)The slow speed is cause by slow flow 1) Replace the hydraulic oil with lower
loud, and the move speed velocity of hydraulic oil due to its high concentration (as per specifications)
of paperweight is slow concentration (especial in winter) 2) Filter the hydraulic oil, remove the
with the preset pressure 2) Too much of impurities on filtering screen dirty matters, clean the screen, and
not reached. and serious blockage reduce the oil intake replace new hydraulic oil.
quantity, and cause noise and slow speed. 3) Retighten the oil inlet joint.
3) Airtight fails at oil inlet of oil pump, 4) Fill oil till the specified level.
which cause air bubble exists in hydraulic 5) Clean the overflow valve (on the
oil. lower right of machine front side).
Air bubble in hydraulic oil is caused by too
low oil level and air entering from oil inlet.
5) The overflow valve is blocked.

51
 Troubleshooting

Troubles Possible reasons Elimination method

When operating with1) The cutting bed does not stop at the highest 1) Raise the cutting bed to the highest
both hands, no operationposition, and the travel switch above fly wheel position by inching switch, and
starts (no pressing byis not disconnected and combats with fender disconnect the fender wheel and switch.
paperweight and nowheel. If happen frequently, adjust the travel
cutting by cutting bed, 2) The travel switch is locked, not returning switch fender wheel to keep the cutting
while the paperweight to the home position, or damaged. bed stopping at the highest position.
can be operated through 3) The single acting relay dose not release 2) Check and repair the travel switch,
foot pedal). after relaying. and fill some lubrication oil to keep it
4) Loosening or falling off of move freely.
electromagnetic valve power plug. 3) Replace the relay.
4) Check and repair the electromagnetic
valve, and tighten the power plug.
Failure in moving 1) The travel switches for moving forward 1) Adjust the positions of forward or
forward and backward of or backward in the manual shaft holder are backward switch and tighten them also.
manual shaft, the sheet out of position and loosen to cause no 2) Check and repair the spring, adjust
pusher keeps still or the movement of sheet pusher. its position and tighten it, and replace
moving distance is not 2) The return spring of manual shaft breaks the broken spring.
long enough or loosens to cause failure.
It is difficult to adjust 1) The travel brake switch of sheet pusher is 1)Adjust the position of travel brake
the sheet pusher by out of position, and the switch was not switch, to make sure the bar can contact
hand, and it is difficult to touched by pushing bar, so it is difficult to the switch when arriving its position,
move it. move under braking condition. and the clutching sound of brake can be
2) Loosening of electromagnet brake plug heard.
or wiring troubles (such as breaking of 2) Check and repair the plug and
wiring, cold joint of welding spot). wiring.
Forceless cutting or 1)The clearances of clutch are too wide 1) Adjust the clearance of friction disk
skidding of cutting bed 2)The clearance of electric magnet sucker is as per specification of instruction.
too wide 2) Adjust the clearance of electric
3) The V-belt is too loosening. magnet sucker as per specification of
4) Suction force of electric magnet is instruction.
insufficient due to too low power voltage. 3) Dismantle the end cover of big belt
pulley and tighten the M16 screw.
4) Adjust the motor seat, and tensioning
the V-belt as per normal requirement.
5) Taking necessary methods on
external power circuit to make sure
normal power supply for machine; in
case abnormal, check and repair the
rectification power supply, to make it
normal.
The machine cannot be 1） Power off in electric grid or tripping 1） Restore the electricity
started happens to electric cabinet. 2） Check whether open phase exists in
2） Open phase exists in external circuit, phase of external circuit.
and tripping happens to circuit breaker
in electric cabinet.

52
 Troubleshooting

Troubles Possible reasons Elimination method

After switch on, the light The light grating dose not power on or Re check the power supply and all
grating does not action connectors is not firmly. connectors.
and all lighters do not Too high voltage burnt the protection Send back to manufacture for repairs.
turn on device.

After switch on, the light Self-checking circuit is working Reboot the machine after 5 minutes.
grating does not action a
long time and the
indication
lighter (for normal) do
not turn on but the
indication lighter (for
blocked) turns on
The indication lighter for Light-emitting diode or receiver breaks Notify the manufacturer for repairs.
“normal” blinks and no down.
any items within the
protection area but the
green indication lighter
for “pass” does not turn
on.

53