Mask ear band length detection device and qualification degree determination method
A detection device and earband technology, applied in the direction of measuring devices, instruments, etc., can solve the problems of high equipment cost and complex algorithm in the visual detection method, and achieve the effect of saving equipment cost, improving production efficiency, simple principle and structure
Active Publication Date: 2021-07-27
MASTERWORK GROUP CO LTD
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Problems solved by technology
This method was not originally applied in the field of industrial production, so it is unknown whether the length of the ear straps of the mask can be tested
Moreover, the visual detection method has high equipment cost and complex algorithm, which is not suitable for the application in the field of industrial automation
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[0050] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.
[0051] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be construed as limiting the invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be understood ...
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The invention provides a mask ear band length detection device and a qualification degree determination method. The mask ear band length detection device is composed of two groups of first sliding blocks and second sliding parts which are symmetrically arranged, first sliding parts and second sliding parts are connected through springs, and the two first sliding blocks pull the two second sliding parts to move towards two separated sides; and two groups of first sensors and second sensors are further included, and the first sensors and the second sensors are located on the outer sides and the inner sides of the two second sliding parts correspondingly. According to the mask ear band length detection device and the qualification degree determination method, the allowable fluctuation range of the detection length of the ear band is set through the two groups of sensors, the ear band is elastically stretched through each spring, and compared with existing fixed value stretching detection, the mask ear band length detection device and the qualification degree determination method are more practical, and damage to the ear band in the detection process can be reduced; and the device is simple in principle and structure, adopts the cheap photoelectric sensor for detection, greatly saves the equipment cost, and improves the production efficiency and the product quality.
Description
technical field [0001] The invention belongs to the technical field of automatic production of masks, in particular to a device for detecting the length of ear loops of masks and a method for judging the degree of qualification. Background technique [0002] The detection of the length of the ear loops has always been a difficult point in the production of masks. The reason is that the material of the ear straps is mostly elastic, and the ear straps will be greatly deformed after being slightly pulled. Therefore, it is extremely difficult to manually check the length of the mask ear straps, and the inspection error is large. It is impossible to achieve a uniform detection standard for each mask. , and the efficiency is low. [0003] At present, there is no automatic method for detecting the length of ear straps in the market. There are only some ways to estimate the length of the curve with visual inspection software. This method is not originally applied in the field of ...
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IPC IPC(8): G01B21/02
CPCG01B21/02Y02E60/10
Inventor 辛建阳戴志辉赵对绵牛志国彭晓文周淇珺郭斌
Owner MASTERWORK GROUP CO LTD