MCL

431 – CAM & AUTOMATION

Q1: Problem description - Using a sorting device, parts are to be transferred from a
conveyor belt. By pressing the pushbutton switch, the piston rod of a single-acting cylinder
pushes the part off the conveyor belt. When the pushbutton is released, the piston rod returns
to the retracted end position.

Q2. Problem description - Using a special device, the valve in a pipe line is to be opened
and closed. The valve is opened by pressing the pushbutton switch. When the pushbutton is
released the valve is closed.
Q3. Problem description - By using a turning device parts are to be further transported on a
conveyor track facing the right direction. By pressing the pushbutton switch parts are turned
by the piston rod of a cylinder and proceed, correctly positioned. When the pushbutton is
released the piston rod is returned to its start position.

Q4. Problem description - Using a lid fitting device snap-on lids are to be pressed onto plastic
buckets. By pressing a pushbutton switch the domed press is advanced and the snap-on lid is
pressed on. When the pushbutton switch is released, the domed press is returned to its start
position.
Q5. Problem description - In an assembly station components are to be put together. By
pressing two pushbutton switches the device is advanced and the components are assembled.
After releasing the pushbutton switches, the device is returned to its start position.

Q6. Problem description - Using a cutting device sheets of paper are to be cut to size. By
pressing two pushbutton switches the cutting blade is advanced and the sheet of paper is cut.
After releasing one pushbutton switch the cutting blade is returned to its start position.
Q7. Problem description - A flap control is used to empty granular material from a
container. By pressing a pushbutton switch the flap control is opened and the granular
material is emptied from its container. After releasing the pushbutton the flap control is
closed again.

Q8. Problem description - Using a tipping device liquid is to be poured from a vat. By
pressing a pushbutton switch the vat is tilted and the liquid is emptied. After releasing the
pushbutton switch the vat is returned to the upright position.
Q9. Problem description - Using a diverting device parts are to be moved from one
conveyor track to another conveyor track. By pressing a pushbutton switch the frame of the
diverting device is pushed forward. The part is moved over and transported onwards in the
opposite direction. By pressing another pushbutton switch the frame is returned to its start
position.

Q10. Problem description- Bulk material is to be emptied from a hopper. By pressing a

Q12. Problem description - Parts are to be pushed away from a multi-track gravity feed
magazine into a clamping device. By pressing a pushbutton switch the parts are pushed out of
the multitrack gravity feed magazine by a slide. After the slide has reached the forward end
position it is returned to its start position.
Q13. Problem description- Using a conveyor belt, parts are to be transported in linear timed
sequence to work stations which are arranged in line after one another. When the latching
pushbutton switch is pressed the main wheel is indexed by the oscillating piston rod of a
cylinder via a pawl. When the pushbutton switch is pressed again the drive is switched off.

Q14. Problem description - Using a rotary indexing table plastic containers are to be
separated in linear sequence. By pressing a pushbutton switch the oscillating piston rod of a
cylinder drives the rotary table in sequence via a pawl. When the pushbutton is pressed again,
this drive is switched off.
Q15. Problem description - Using a sliding table a plank of wood is to be pushed under a
belt sanding machine. By pressing a pushbutton switch the sliding table with the plank of
wood positioned on it is pushed under the belt sanding machine. By pressing another
pushbutton switch the sliding table is returned to its start position.

Q16. Problem description - Parts are to be clamped using a clamping device. By pressing a
pushbutton switch the moveable clamping jaw is pushed forward and the part is clamped. By
pressing another pushbutton switch the clamping jaw is returned to its start position.
Q17. Problem description - Using a diverting device parts are to be removed from one
conveyor track onto another in linear sequence. By pressing a pushbutton switch the
oscillating piston rod of a cylinder pushes the turntable via a pawl in stepped sequence. The
parts are diverted and transported onwards in the opposite direction. By pressing another
pushbutton switch the drive unit is switched off.

Q18. Problem description - Parts are to be stamped with a stamping device. By pressing two
pushbutton switches the die is pushed down and the part is stamped. When the stamping
pressure has been achieved the die is returned to its start position.
Q19. Problem description - Using a hot pressing die, packing material is to be sealed by
application of heat and pressure. By pressing a pushbutton switch the heating rail is advanced
and the packaging material is heated along the adhesive strip. After the adhesion pressure has
been reached, the heating rail is returned to its start position.

Q20. Problem description - Using a transfer station blocks are to be transferred from a
magazine to a processing station. The blocks are pushed out of the magazine by cylinder 1A
and transferred to the processing station by cylinder 2A. The piston rod of cylinder 2A may
only return when the piston rod of cylinder 1A has reached the retracted end position. The
magazine is monitored by means of a limit switch. If there are no more blocks in the
magazine, it is not possible to start the cycle. This is indicated by means of an audible signal.
The control is to be operated in single cycle.