International Journal of Engineering Inventions

Preventive action for NEP formation

tải về 1.28 Mb.

Chế độ xem pdf

trang	15/27
Chuyển đổi dữ liệu	30.09.2023
Kích	1.28 Mb.
	#55222

1 ... 11 12 13 14 15 16 17 18 ... 27

Analysis on the Defects in Yarn Manufacturing Process

5.3.1 Objective of Draw Frame

4.2.8.1 Preventive action for NEP formation

Over hauling of machine must be on time. During over hauling, setting of every part of the machine has
to be checked. Flat setting play very important role for reducing nep formation. So flat setting must not
be uneven.

Suction waste point should be properly working. This point must not be chocked. If there will be chock
then neps formation will take place. Suction waste point also to be checked manually as well.

This problem is also related to maintenance. Over hauling of every machine must be on time. Wire of
flats and cylinder have specific time limit of production. After that specific time limit it must be
changed. As these play very important role by quality point of view.

4.3 Draw Frame Section
After carding process the material is transfer to this section in the form of rope (the technical word is silver).
The carding rope (silver) is in curly form so for further process to remove this curly form, draw frame machine
is used. In this section the sliver get more parallel and uniform. This chapter also describes the technical point.
Critical success factor, preventive action and also describes the defects rate which affect the yarn quality.

Analysis on the Defects in Yarn Manufacturing Process & its Prevention in Textile Industry

www.ijeijournal.com
Page | 56
Fig. 13 Diagram of Draw frame section
5.3.1 Objective of Draw Frame

Parallelization of material.

To improve evenness by doubling many card sliver.

To produce uniformity in the material by mixing and blending different card sliver.

Elimination of short fiber and fine dust by suction.

To achieve sliver fineness by auto leveller

Drafting.

tải về 1.28 Mb.

Chia sẻ với bạn bè của bạn:

1 ... 11 12 13 14 15 16 17 18 ... 27