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Weft Insertion Control Method of Air-jet Loom

An air-jet loom and control method technology, applied in looms, textiles, textiles and papermaking, etc., can solve the problem of not being able to fully suppress weft insertion errors, and achieve the effect of suppressing weft insertion errors

Active Publication Date: 2021-06-04
TOYOTA IND CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in the technology described in Patent Document 1, there is a possibility that weft insertion errors caused by yarn breakage cannot be sufficiently suppressed.

Method used

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  • Weft Insertion Control Method of Air-jet Loom
  • Weft Insertion Control Method of Air-jet Loom
  • Weft Insertion Control Method of Air-jet Loom

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Embodiment Construction

[0017] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

[0018]

[0019] figure 1 It is a schematic diagram showing a configuration example of the weft insertion device of the air-jet loom according to the embodiment of the present invention.

[0020] The weft insertion device 1 is provided with: a weft yarn bobbin 2, a weft yarn state detection device 3, a weft yarn storage device 4, a weft yarn tension correction device 5, a main nozzle 6, a series nozzle 7, a secondary nozzle 8, a reed 9 for beating up weft, and a weft detecting device. device 10. In addition, the weft insertion device 1 includes a main valve 12 , a tandem valve 14 , a main tank 16 , a regulator 18 , a sub-valve 22 , a sub-tank 23 , a regulator 24 , a control device 31 , and a function panel 32 .

[0021] The weft yarn bobbin 2 functions as a yarn feeding unit that supplies the weft yarn 11 used for weft insertion to the weft yarn accumulatin...

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Abstract

The present invention provides a weft insertion control method for an air-jet loom capable of sufficiently suppressing weft insertion errors caused by yarn breakage. The weft insertion control method of an air-jet loom that injects air from a weft insertion nozzle to insert weft yarns includes the steps of: detecting the state of the weft yarn before weft insertion (S1); When the weft yarn is inserted under the weft insertion condition, the weft yarn arrival time (S2) when the weft yarn reaches the specified position; for the irregular arrival time of the weft yarn, the advance limit value is preset, and the predicted weft yarn arrival time is earlier than In the case of an advance limit value, change the weft insertion condition so that the actual weft yarn arrival time is later than the advance limit value (S3, S4); Weft (S5).

Description

technical field [0001] The invention relates to a weft insertion control method for an air-jet loom. Background technique [0002] Regarding the air-jet loom that uses compressed air to insert weft yarns, for example, Patent Document 1 describes that when weft yarns are inserted with thinner weft yarns than usual, a smaller injection pressure is used to prevent damage caused by yarn breakage. Technology of weft insertion error. In addition, this document describes that when the weft yarn is thinner than usual, the injection time of the main nozzle and / or the auxiliary nozzle is shortened. [0003] Patent Document 1: Japanese Patent Publication No. 61-25817 [0004] In the technique described in Patent Document 1, the injection pressure and the like are changed only by focusing on the thickness of the weft yarn used for weft insertion. However, the ease of yarn breakage not only considers the thickness of the weft yarn, but also other important factors such as the number o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D03D47/30
CPCD03D47/3033
Inventor 滨口真崇奥田泰治郎卡斯滕·米德
Owner TOYOTA IND CORP
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