Appearance inspection method for white transparent silicon rubber seal ring

A technology of appearance inspection and sealing ring, which is applied in measuring devices, material analysis by optical means, instruments, etc., can solve problems such as low efficiency, high missed inspection rate, eye fatigue, etc., so as to improve inspection quality and reduce missed inspection rate. , the effect of improving the detection accuracy

Inactive Publication Date: 2014-04-02
南京金三力橡塑有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems in the existing technology that only rely on human visual inspection when detecting the appearance defects of white transparent silicone rubber sealing rings, resulting in low efficiency, easy fatigue to the eyes of inspectors

Method used

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  • Appearance inspection method for white transparent silicon rubber seal ring

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0033] Example 1

[0034] A method for visual inspection of white transparent silicone rubber sealing ring, the steps are:

[0035] (1) Process two plates 1 of the same size. One plate 1 is placed on the inspection platform. The color of the plate 1 is modulated by the three primary colors of R, G and U in the computer. The value of R is 38 and the value of G is 73. The value of U is 146; the material of the plate 1 is PVC, and the size is 240mm in length × 150mm in width × 1.5mm in thickness;

[0036] (2) The fluorescent lamp with the light color is white, the illuminance of the fluorescent lamp is 7000lux, the length of the fluorescent lamp is equal to twice the length of the plate 1, the fluorescent lamp is parallel to the inspection platform, and the distance between the fluorescent lamp and the inspection platform is 450mm;

[0037] (3) Lay the white transparent silicone rubber sealing ring 2 to be tested on the flat plate 1 on the inspection platform, the distance between each s...

Example Embodiment

[0044] Example 2

[0045] Same as embodiment 1, the difference is: in step (1), the value of R is 43, the value of G is 62, and the value of U is 170; in step (2), the illuminance of the fluorescent lamp is 7800lux, and the length of the fluorescent lamp is equal to the plate 1. The fluorescent lamp is parallel to the inspection platform, and the distance between the fluorescent lamp and the inspection platform is 500mm; the distance between each sealing ring in step (3) is 3mm. The specifications of the white transparent silicone rubber sealing ring tested are 12.5mm in outer diameter and 5.8mm in thickness. Immediately selected 40 inspection workers from a rubber factory, and randomly divided them into two groups, each with 20 people, the first group of workers, using the method of the present invention to detect, the working time is 8 hours, on average, each worker inspects white transparent silicone rubber There were 7928.2 pieces of sealing rings. At the end of the work, th...

Example Embodiment

[0046] Example 3

[0047] Same as embodiment 1, the difference is: in step (1), the value of R is 30, the value of G is 90, and the value of U is 138; in step (2) the illuminance of the fluorescent lamp is 5600lux, and the length of the fluorescent lamp is equal to the plate 1. The length of the fluorescent lamp is parallel to the inspection platform, and the distance between the fluorescent lamp and the inspection platform is 400mm; the distance between each sealing ring in step (3) is 6mm. The tested white transparent silicone rubber sealing ring has an outer diameter of 14mm and a thickness of 5.8mm. The two groups of workers in Example 1 were swapped. The second group of workers was tested by the method of the present invention. The working time was 9 hours. On average, each worker tested 8895.1 pieces of white transparent silicone rubber sealing rings. It did not appear until the end of the work. As a result of visual fatigue, only three workers had slight eye astringency, ...

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Abstract

The invention belongs to the field of appearance inspection of rubber seal rings and discloses an appearance inspection method for a white transparent silicon rubber seal ring. The method comprises the following steps: (1) processing two flat plates with the same sizes and putting one flat plate on an inspection platform; (2) selecting a pure white daylight lamp; (3) flatly laying the white transparent silicon rubber seal ring to be detected on the flat plate on the inspection platform; (4) inspecting the appearance defect of the front surface of the white transparent silicon rubber seal ring; (5) covering the front surface of the white transparent silicon rubber seal ring by the other flat plate; (6) pressing the flat plate by both hands and turning at an angle of 180 degrees; (7) taking away one flat plate and inspecting the appearance defect of the other surface of the white transparent silicon rubber seal ring; (8) classifying unqualified products according to the defects of glue shortage, hole gas, sulfur marks and the like, and putting the classified unqualified products in different baskets. According to the method, the work efficiency of workers is improved, most importantly, the visual fatigue cannot be caused even if the detection is continuously conducted for 8 hours, and the omission rate is greatly reduced.

Description

technical field [0001] The invention belongs to the field of appearance inspection of rubber sealing rings, and in particular relates to an appearance inspection method of white transparent silicon rubber sealing rings. Background technique [0002] Silicone rubber sealing rings are widely used in various fields of modern automobiles, home appliances, medicine, industry and other industries. It can play the role of moisture absorption, insulation and sealing. Today, many parts in manufacturing are still inspected manually rather than automated. Especially in the testing of silicone rubber products, manual visual inspection is required. The testing is usually on a conventional workbench, one side of the product is checked by hand one by one, and then the other side of the product is checked one by one. On the one hand, it not only affects the inspection efficiency, but also easily causes visual fatigue. For the inspection of white transparent silicone rubber products, the d...

Claims

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Application Information

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IPC IPC(8): G01N21/958
Inventor 徐海潮芮巧红袁建兰周樱
Owner 南京金三力橡塑有限公司
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