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Defect detection device

A defect detection and defect technology, applied in measurement devices, optical testing flaws/defects, wire break detectors, etc., can solve problems such as difficulty in improving inspection accuracy, wrinkles in sewn products, etc.

Active Publication Date: 2019-05-14
SEIREN CO LTD
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Problems solved by technology

[0010] However, the slack of the sewn product placed on the inspection table is not caused by the way the operator places the sewn product on the inspection table, but is a problem inherent to the sewn product (caused by the inherent shape of the sewn product). In the case of pressing the sewn product with a flat plate, many wrinkles will be generated on the sewn product
Therefore, it is difficult to improve the accuracy of defect inspection for sewn products with slack

Method used

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Embodiment Construction

[0025] First, embodiments of the present invention will be listed and described.

[0026] The defect detection device according to the embodiment of the present invention is a device for detecting a defect in an inspection object having a locally loose slack portion, and includes: a workpiece clamping device for holding the inspection object; an imaging unit for acquiring and holding The image data of the object to be inspected in the workpiece clamping device; and the defect detection unit detects the defect based on the image data or processed image data generated by applying image processing to the image data. The workpiece clamping device includes: an inspection table having a mounting surface on which an object to be inspected is placed; a base provided on the mounting surface of the inspection table; and a pressure plate. When the object to be inspected is placed at a predetermined position on the mounting surface, the base is in a state of sneaking behind the slack port...

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Abstract

　This defect detecting device is provided with a workpiece holder (1) for holding a specimen under inspection. The workpiece holder (1) has an inspection table (11), a base (12) placed on a positioning surface (11a) of the inspection table (11), and a presser plate (13). When a specimen under inspection is arranged at a prescribed position (Pt) on the positioning surface (11a), the base (12) slides under the back of a slack portion (103) of the specimen under inspection. The presser plate (13) is a transparent presser plate designed such that at least a portion of the specimen under inspection, when arranged at the prescribed position (Pt), is pressed towards the inspection table (11). The presser plate (13) has a first flat plate portion (131) that, when arranged at a pressing position, faces the positioning surface (11a) of the inspection table (11) in close proximity thereto. The first flat plate portion (131) is provided with an opening (131a) that permits passage of the base (2) when the presser plate (13) is arranged at the pressing position.

Description

technical field [0001] The present invention relates to a defect detection device for detecting defects in inspection objects such as sewn products. Background technique [0002] In the process of manufacturing sewn products such as airbags, defects such as off-threads, broken ends, and skipped stitches sometimes occur at the seams. Such defects have traditionally been detected by visual inspection. In recent years, in order to further improve detection accuracy and reduce operating costs, automation of defect detection is being considered. Specifically, after the operator places the sewn product on the inspection table, the image data of the sewn product is automatically obtained, and based on the image data or the processed image data generated by applying image processing to the image data, the defects are inspected. detection (for example, refer to Patent Document 1 or 2). [0003] In such a defect detection technique, when slack occurs in a sewn product placed on an ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/84D05B51/00G01N21/88
CPCD05B51/00D05D2305/36G01N21/8806G01N21/8983G01N21/95
Inventor 新家英正
Owner SEIREN CO LTD
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