Plastic-lock screw force test method and tester
A test method and screw locking technology, applied in instruments, measuring devices, scientific instruments, etc., can solve problems such as process rework, screw column extrusion and bursting, etc., and achieve the effect of reducing the rework rate and reducing defective products.
Active Publication Date: 2016-01-13
东莞市国亨塑胶科技有限公司
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Problems solved by technology
[0007] The object of the present invention is to provide a plastic locking screw strength test method and a tester for the deficiencies of the prior art, which solves the problem existing in the existing keyboard production: the screw column may be squeezed and burst when the keyboard is assembled, and all processes will be generated. Defects such as rework
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[0021] The present invention will be further described below in conjunction with the accompanying drawings.
[0022] See figure 1 —— figure 2 , the plastic lock screw strength tester of the present invention, comprises: base 2, cover plate 1, has the test groove 5 that is used to place test plate on the base 2, and there can be a plurality of test grooves 5, how many are provided on the cover plate 1 A test hole 4, the test hole 4 corresponds to the screw column 8 of the test board 7.
[0023] Specifically, a concave surface 3 is formed between the test hole 4 and the surface of the cover plate 1. The design of this concave surface 3 can increase the strength of the test hole 4, so that the test hole 4 can function as a keyboard when it is assembled with the keyboard. The strength effect of the shell.
[0024] More specifically, one end of the test slot 5 extends to the side of the base 2 .
[0025] Further, the side surface of the test groove 5 is an inner inclined surfa...
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The invention relates to the technical field of computer keyboards, and especially relates to a test method for screw force of a plastic lock applied to a keyboard and a tester. According to the method, before every batch of plastic is normally produced, firstly preparing a test plate on which a plurality of screw columns are molded, then putting the test plate in the tester, and then testing the screw force of the screw columns through a digital torsion tester. The plastic-lock screw force tester comprises a pedestal and a cover plate, a test groove for putting the test plate is disposed on the pedestal, and the core plate is provided with multiple test pores corresponding to the screw columns of the test plate. Before a large batch of keyboards is produced, the screw force of the screw columns formed through injection molding of the batch of the raw material is tested, if the screw force accords with the requirement, normal production is performed, or else, the batch of the raw material is not applied for normal production. Therefore, in the conventional production process of the keyboards, product reworking rate is substantially reduced, adverse product quantity is reduced, production waste, manpower source waste, and waste of transportation cost and storage cost are not caused, and the test method and the tester are worth popularizing.
Description
technical field [0001] The invention relates to the technical field of computer keyboards, in particular to a method and a tester for testing the strength of plastic lock screws used for keyboards. Background technique [0002] With the continuous development of electronic technology, computers are becoming more and more popular. Basically, a computer is equipped with a keyboard. Gradually, independent products with various shortcut functions are sold separately on the market. No matter what kind of keyboard, basically They are all made of plastic, and the widely used keyboard includes a keyboard panel and a base, and the keyboard panel and the base are locked by screws. There are screw posts and holes formed on the keyboard panel and the base, and the hole diameters of the screw posts at different positions may be different, and the force range of each screw post may be different. In addition, the injection molding raw materials used in each batch of keyboards may be diffe...
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IPC IPC(8): G01N3/00
Inventor 肖坚俊邹光锋
Owner 东莞市国亨塑胶科技有限公司