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3.types of Feeler PDF

There are three main types of feelers used in looms to detect yarn: mechanical, electrical, and electro-mechanical. Mechanical feelers include side sweep and depth gauges. Electrical feelers include two-pronged and photoelectric designs. The feeler makes contact with the pirn yarn to detect if yarn is present or not, allowing the loom to run or triggering braking if no yarn. Mechanical feelers are robust, cheaper, and used for spun yarn, but can damage yarn and lose effectiveness over time. Electrical feelers guide yarn better and cause less hairiness but circuits can fail from rust.

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Ehsaan Raahi Rihaan
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661 views3 pages

3.types of Feeler PDF

There are three main types of feelers used in looms to detect yarn: mechanical, electrical, and electro-mechanical. Mechanical feelers include side sweep and depth gauges. Electrical feelers include two-pronged and photoelectric designs. The feeler makes contact with the pirn yarn to detect if yarn is present or not, allowing the loom to run or triggering braking if no yarn. Mechanical feelers are robust, cheaper, and used for spun yarn, but can damage yarn and lose effectiveness over time. Electrical feelers guide yarn better and cause less hairiness but circuits can fail from rust.

Uploaded by

Ehsaan Raahi Rihaan
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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Types of

feeler

Types of feeler:

Mechanical:
a. side sweep
b. depth (diameter gauge & penetration gauge)

Electrical
a. Two pronge
b. photo electrical

Electro- mechanical
Mechanism of:
A mechanism making contact with the pirn yarn to detect the yarn was present or not in the
pirn is called feeler.
If the yarn is present the feeler will allow the loom to continue running but if there is no yarn at
this point then the feeler will activate the start of a chain procedure and finally on the brake
and stop the loom.

Advantages of Mechanical feeler:

 Robust construction

 Cheaper

 Used for spun yarn

 Mostly used in normal power loom

Disadvantages:
1.More roughly treatment is on the pirn yarn during feeling because of the slot in the feeler
blade as saw
2.the mechanism is totally inactive because of reducing the elasticity or breaking the return
spring for more use

3. The stem o f more using pirn is to be rough and then it loses its activeness

Advantages of electrical feeler:

 It is better for proper direction than mechanical feeler

 Less hairiness of yarn

It is less harmful than side sweep feeler

Disadvantages:
circuit may be uncompleted because of rust in the point of metal trip where the prong contacts
It is not properly acts because of reducing elasticity or breaking of one or both of the return
spring

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