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Device for removing weft thread

A technology of weft yarn and weft detector, used in textiles and papermaking, looms, textiles, etc.

Active Publication Date: 2016-08-17
PICANOL NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is known that the force that pneumatic elements can exert on the weft yarn is sometimes too small for effective removal of the weft yarn

Method used

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  • Device for removing weft thread
  • Device for removing weft thread
  • Device for removing weft thread

Examples

Experimental program
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Effect test

Embodiment Construction

[0022] exist figure 1 , schematically shows a part of the loom in the area on the opposite side of the shed (not shown). Here is shown a device 1 according to the invention fastened via a fastening system 2 to a beam 3 of a weaving machine. Also shown is a part of the sley 4 on which the reed 5 and the weft finder 6 are mounted.

[0023] When the weft feeler 6 detects an incorrectly inserted weft thread, the weaving process is interrupted. According to one embodiment, the next inserted weft thread 10 connected to the incorrectly inserted weft thread 11 is then passed through the shed to the device 1 according to the invention in a known manner, for example according to a method known from NL 86 02191 A . It is also known here, after detection of an incorrectly inserted weft thread, to release a limited amount of weft thread in the region of the thread supply and not to cut the incorrectly inserted weft thread 11 from the thread supply. Here, both weft threads 10, 11 are br...

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Abstract

The invention relates to a device for removing weft thread, wherein the device (1) comprises a first unit (9) for generating a pneumatic tensile force on a weft thread (10, 11) and a second unit (19) for generating a mechanical tensile force on a weft thread (10, 11), wherein in the movement direction (A) of the weft thread the first unit (9) is arranged downstream of the second unit (19), so that weft thread (10, 11) which is guided through the device (1) by the air current generated by the first unit (9) can be clamped by the second unit (19), and wherein the device (1) comprises a housing (20) having a first bore (21), which in use extends in the movement direction (A) of the weft thread, and a second bore (22), which is disposed transversely to the first bore (21), wherein the second unit (19) is mounted in the area of the second bore (22).The invention also relates to a weaving machine having such a device.

Description

technical field [0001] The invention relates to a device for removing weft threads. The invention also relates to a weaving machine with such a device. Background technique [0002] It is known that when weft threads are inserted into the shed from the insertion side to the opposite side, various irregularities can occur, such as broken weft threads or weft threads not reaching the opposite side of the shed. [0003] From NL 8602191 A, NL 8602826 A, EP 310804 A2 and EP 534541 A1 it is known to remove weft threads from the shed. According to one embodiment, the shed is first opened such that the weft thread to be removed is free. Then, the following weft thread connected to the weft thread to be removed is inserted into the shed, and the two weft threads are removed together on opposite sides of the shed. For this, both pneumatic and mechanical elements can be used to remove the two weft threads. It is known that the force that the pneumatic element can exert on the weft ...

Claims

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Application Information

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IPC IPC(8): D03D47/30D03D51/08
CPCD03D47/3086D03D51/085
Inventor B.莱卢伊塞
Owner PICANOL NV
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