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Opening defect detection device of weaving machine

A detection device and defective technology, which is applied in looms, textiles, textiles and papermaking, etc., can solve the problems of inability to correctly detect the defective opening of warp yarn groups and difficult image processing, and achieve the effect of easy image processing and high-precision detection

Active Publication Date: 2020-12-04
TOYOTA IND CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, although the stop mechanism of the loom in the warp yarn cutting of Patent Document 1 detects the shape of the opening of the warp yarn group with a video camera, various objects will be photographed behind the opening of the warp yarn group in the image captured by the video camera. There is a problem that the image processing of the shedding of the warp yarn group becomes difficult
If the image processing of the shed portion of the warp yarn group becomes difficult, the shedding defect of the warp yarn group cannot be accurately detected

Method used

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  • Opening defect detection device of weaving machine
  • Opening defect detection device of weaving machine
  • Opening defect detection device of weaving machine

Examples

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no. 1 Embodiment approach

[0025] Hereinafter, a shedding failure detection device for a loom according to a first embodiment will be described with reference to the drawings. First, a loom provided with a shedding failure detection device will be described.

[0026] figure 1 The shown loom 10 is an air-jet loom that flies weft yarns by compressed air and inserts weft yarns to openings of warp yarn T groups. Such as figure 2 As shown, the loom 10 includes a pair of left and right side frames 11 . exist figure 1 , only one side frame 11 is shown. A warp beam 12 is provided at the rear of the loom 10 . The warp beams 12 are supported by beam supports 13 fixed at the rear of the side frames 11 . A plurality of warp yarns T are wound around the warp beam 12 over the width direction. A beam 14 supported by a side frame 11 is provided at the front of the loom 10 . The beam 14 is used for winding the fabric W to be woven.

[0027] The loom 10 includes a warp yarn shedding device 15 for shedding a gro...

no. 2 Embodiment approach

[0054] Next, a shedding failure detection device for a loom according to a second embodiment will be described. This embodiment differs from the first embodiment in that the camera is disposed behind the heald frame in the front-rear direction of the warp yarn group. In this embodiment, the description of the first embodiment is applied to the same configuration as that of the first embodiment, and common reference numerals are used.

[0055] Such as Figure 7 As shown, the shedding defect detection device 50 of the loom 10 has a camera 51 for photographing the shedding of the warp yarn T group, a light irradiator 52 for observing the background of the warp yarn T group shedding from the camera 51, and a control for detecting the shedding defect of the warp yarn T group. Device 38.

[0056] The camera 51 has the same structure as the camera 36 of the first embodiment. In the front-rear direction of the warp yarn T group, the camera 51 is arranged on the delivery side of the...

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Abstract

The invention provides an opening defect detection device of a weaving machine, which can detect opening defects of a warp group with high precision. The loom opening defect detection device is provided with: a camera (36) that captures an opening of a warp group (T) from one side to the other side of the warp group that is opened up and down by a heald frame (17); a light irradiator (37) that emits light from the other side of the warp group (T) toward the surface of the camera (36); and a control device (38) that detects opening defects on the basis of a camera image captured by the camera (36) and having an opening projected with the light irradiator (37) as the background.

Description

technical field [0001] The present invention relates to a shedding failure detection device of a loom. Background technique [0002] Conventionally, there is known a stop mechanism of a loom during warp cutting, in which an electric signal is sent from the computer to the stop device of the loom when the image of the opening shape of the opening sent from the video camera to the computer is different from the pre-registered opening shape. , to stop the loom immediately (for example, refer to Patent Document 1). In the stop mechanism of the loom for warp yarn cutting in Patent Document 1, the video camera is installed on the extension line of one side in the width direction of the warp yarn group on the opposite side to the traveling direction of the warp yarn group across the heald frame of the loom, The opening shape of the opening formed by the heald frames is detected, and the opening shape of the opening determined by the material of the yarn, the number of heald frames...

Claims

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Application Information

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IPC IPC(8): D03D51/46
CPCD03D51/46
Inventor 铃木昭宏松井正清辻良平
Owner TOYOTA IND CORP
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