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Air leak detection method in air jet loom

An air-jet loom and leakage detection technology, which is applied to looms, liquid-tightness measurement using liquid/vacuum, textiles, etc., can solve problems such as expensive flow meters, inability to detect air leakage of air-jet looms, and poor air flow

Inactive Publication Date: 2013-04-17
TOYOTA IND CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The weft insertion abnormality detection apparatus disclosed in Laid-Open No. 2-175956 is configured to detect the air consumption of the air-jet loom in operation, and cannot detect the air leakage of the air-jet loom in stop
Also, the flow meters used to detect air consumption are expensive
Also, there is a large air flow difference between the air consumption of the air jet loom in operation and the air consumption of the air jet loom when it is stopped.

Method used

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  • Air leak detection method in air jet loom
  • Air leak detection method in air jet loom
  • Air leak detection method in air jet loom

Examples

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Embodiment Construction

[0024] The following will refer to Figures 1 to 5C A first embodiment of the present invention is described. Reference is made to a schematic block diagram showing the weft insertion device of an air-jet loom figure 1 , the air supply source is indicated by reference numeral 1 and includes an air compressor (not shown) and a dryer (also not shown). Air supply source 1 via the corresponding conduit (in figure 1 Only one shown in and indicated by reference numeral 2) supplies compressed air to a plurality of air-jet looms, one of which is shown in figure 1 and is indicated by reference numeral 3 . The air supply source 1 and the air jet loom are placed in the weaving mill. Conduit 5 is connected to conduit 2 via a valve 4 that allows or stops the supply of compressed air.

[0025] A pressure gauge 7 is connected to the conduit 5 via a filter 6 for measuring the initial pressure P1 of the compressed air supplied from the air supply source 1 (cf. figure 2 ). The initial p...

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Abstract

Compressed air supplied for an air jet loom possesses initial pressure, main pressure and auxiliary pressure. Provided is an air leak detection method in an air jet loom, characterized by comprising the steps of: setting a decrease setting picture of at least one of the initial pressure, main pressure and auxiliary pressure of the compressed air when no air leak generates in an air jet loom; stopping operation of the air jet loom; stopping supplying compressed air to the air jet loom; measuring a decrease actual measurement picture of at least one of the initial pressure, main pressure and auxiliary pressure of the compressed air; comparing the actual measurement picture with the setting picture; and determining air leak in the air leak loom if the actual measurement picture is different with the setting picture.

Description

technical field [0001] The invention relates to a method for detecting compressed air leaks in an air-jet loom. Background technique [0002] In air-jet looms that use compressed air to introduce weft yarns, if any air leaks occur due to damaged valves and / or tubes, then not only does the consumption of compressed air increase during weft insertion, but also at times other than weft insertion, it is not used The compressed air also continues to flow out of the air jet loom, which results in wasted energy. The flow of unused compressed air affects the weft insertion performance, which makes it difficult for the air jet loom to continue its weaving operation correctly. For these reasons, air jet looms have compressed air supply mechanisms designed not to allow air leakage. However, if there is any fault or any misadjustment in the installation of the compressed air supply mechanism of the air jet loom, air leakage may occur. [0003] Japanese Unexamined Patent Application P...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M3/26
CPCD03D47/3026D03D47/3033
Inventor 牧野洋一稻村贵裕
Owner TOYOTA IND CORP
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