Method and device for reducing the interference caused by the depression between the protrusions of the chain to the measurement

Abstract

The invention discloses a method and device for eliminating the interference of a recess between chain-shaped protrusions on measurement. The method solves the adverse effect of the recess between chain-shaped protrusions on the dimensional measurement by inscribing the inner arc of a measuring bowl and the outer arc of a chain-shaped object wrapping the groove of a measuring wheel. When the axisof a cone where the measuring bowl is located, the axis of the measuring wheel, and a straight line vertical to the axis of the measuring wheel and passing the inscribed point of the outer arc of thechain-shaped object and the measuring bowl intersect with each other, an optimal effect is achieved. The device using the method includes a measuring wheel, a measuring bowl, a housing and a distancemeasuring device. When the size of the chain-shaped object that passes through the inscribed point changes, the distance between the measuring wheel and the measuring bowl changes, and then the distance measuring device is driven to measure the size of the chain-shaped object. The method can be used for measuring the width of a nylon zipper, the diameter of a rope, the width of a chain, the diameter of a bead, the diameter of a spring, the diameter of an electric stove wire.

Description

technical field [0001] The invention belongs to the technical field of measuring devices, and in particular relates to a method and a device for reducing interference caused by depressions between protrusions of chains to measurement. Background technique [0002] At present, in the nylon zipper production industry, all the width of the nylon zipper is detected by manual detection, and the measurement accuracy is required to be 0.01mm. [0003] The first method of manually detecting nylon zippers is to detect after the nylon zippers are assembled. First, separate the assembled nylon zippers, and use a card meter (thickness gauge, also called a thickness gauge) to measure the width of multiple points on the nylon zipper. When measuring, ensure that the card meter measurement plane is perpendicular to the direction of the chain teeth, and then Use the measured width values ​​of multiple points to take the average value, and use this average value as the width of the nylon zip...

AI Technical Summary

Problems solved by technology

This detection method requires workers to have quite high skills. Since the detection method is to measure the nylon zipper during its movement, it is difficult to accurately measure the width of the nylon zipper. A little carelessness will cause equipment failure and affect the product. quality

[0005] In the process of realizing the present invention, the inventor has found that the prior art has at least the following defects: first, the manual detection of the width of the nylon zipper is not only cumbersome and time-consuming, but also the accuracy of the measurement depends entirely on the experience of the operator

[0007] The prior art nylon zipper width on-line detection devices are all refitted on the basis of the card meter or the card meter principle. The characteristics are as follows: on the one hand, due to the use of sliding friction, the resistance is relatively large, and a larger counterweight is required to Normal work; on the other hand, the card meter is severely worn. Although the card meter detection port is made of wear-resistant materials, it still cannot withstand the long-term wear of the nylon zipper tooth head, and the accuracy drops rapidly.

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