Ejection-period setting method for sub-nozzles in air jet loom

A technology of air jetting and jetting period, applied in looms, textiles, textiles and papermaking, etc., can solve the problem of not being able to reduce the jetting period of the sub-nozzle group, reducing the amount of air jetting, etc., and achieve the effect of effective setting and easy setting.

Active Publication Date: 2012-07-04
TSUDAKOMA KOGYO KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0013] However, in the setting method of Patent Document 1, the injection period of the sub-nozzle group close to the yarn supply side cannot be reduced unless the injection period of the sub-nozzle group on the side opposite to the yarn supply side is reduced, so it is not possible to set the nozzle ...

Method used

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  • Ejection-period setting method for sub-nozzles in air jet loom
  • Ejection-period setting method for sub-nozzles in air jet loom
  • Ejection-period setting method for sub-nozzles in air jet loom

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Embodiment Construction

[0054] figure 1 As an example of an air jet loom to which the present invention is applied, a main part of a loom having a multi-color weft insertion device is shown. exist figure 1 Although only 3 weft insertion series are shown in , it is actually a 6-color weft insertion device with 6 weft insertion series. Hereinafter, description will be made based on this premise. In addition, this six-color weft insertion device corresponds to the multi-color weft insertion device of the present invention. The "weft insertion series" mentioned here refers to the group to which a plurality of weft insertion-related devices (length measuring and weft storage device 15, main nozzle 20, sub-nozzle 21, etc.) . But the sub-nozzle 21 is common to all weft insertion series.

[0055] exist figure 1 In the weft insertion device 11, the weft yarns 14 of colors C1, C2, C3... are drawn from the yarn supply body 13 supported by the yarn supply body frame 12, and are introduced into the yarn ...

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Abstract

An ejection-period setting method for sub-nozzles (21) in an air jet loom is provided. The sub-nozzles (21) are divided into groups (1G to 13G) of sub-nozzles (21) that are connected to a common electromagnetic on-off valve (36). The groups (1G to 13G) are divided into downstream and upstream group sets (GU1 and GU3) which each include two or more groups and an intermediate group set (GU2) including the remaining groups. Ejection-amount reducing patterns (patterns hereinafter) are determined and stored in advance in an arbitrarily selectable state, each pattern being determined by setting an ejection-period reducing mode for each of subject group sets in units of predetermined periods so that each pattern includes the ejection-period reducing modes for all of the subject group sets, the subject group sets including the intermediate and upstream group sets (GU2 and GU3). In a process of setting the ejection periods of the sub-nozzles (21), ejection end times of the ejection periods are corrected when a pattern is selected by an operator.

Description

technical field [0001] The present invention relates to a method of setting an injection period (injection start time-injection end time) of a sub-nozzle in an air jet loom. Background technique [0002] In the air-jet loom, a plurality of sub-nozzles arranged along a weft-insertion path perform air injection for a predetermined period to insert weft yarns ejected from the main nozzle. Generally, the plurality of sub-nozzles are arranged in such a way that they are grouped into one group, and the sub-nozzles belonging to the same group are connected to a common on-off valve to spray simultaneously. Such a group is referred to as a "sub-nozzle group" in the present invention. and, if Figure 6 As shown, the injection period is set so that each sub-nozzle group performs alternate injection in sequence from the yarn supply side at the time of weft insertion. [0003] However, when setting the injection period of each of the above-mentioned sub-nozzle groups, it is generally c...

Claims

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Application Information

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IPC IPC(8): D03D47/30
CPCD03D47/304
Inventor 伴场秀树松本正人口田则夫川田彩夏山崎宏喜
Owner TSUDAKOMA KOGYO KK
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