Method and device for determining reference position of steel belt

Abstract

Disclosed is a method for determining a reference position of a steel belt. The method comprises: (1) heating one section of the steel belt to the color changing temperature, and forming the color difference between a heating section and a non-heating section on the surface of the steel belt after the steel belt is heated; 2) identifying different colors formed after the surface of the steel beltis heated by adopting a color sensor, and determining the color changing position of the steel belt; and 3) taking the color changing position as a steel belt length metering reference point. The invention also correspondingly provides a device for determining the reference position of the steel belt by using the method. According to the invention, the color difference between the heating sectionand the non-heating section of the steel belt is identified by using the color sensor according to the color difference between the heating section and the non-heating section formed during heating ofthe steel belt, so that the discoloring position is determined, and the discoloring position is used as a reference point for metering, therefore, nondestructive, correct and simple positioning can be achieved. In particular, the initial position and the length of the steel belt can be conveniently and automatically determined by a sensing signal of the color sensor through the controller.

Description

technical field [0001] The invention relates to a method for determining the reference position of a steel strip and a corresponding device. Background technique [0002] Steel strips can be made into different types of products. How to make a steel strip with a set length is the basic requirement. Therefore, determining the reference position of the steel strip is the basis for accurate measurement of the length of the steel strip. It is very important, especially for automatic production. The key to the success or failure of metrology. The existing steel belt positioning is to add an additional identifiable process hole to the steel belt, and accurately locate the steel belt through infrared detection of the hole position, but this will increase the complexity and cost of the equipment, and will also cause damage to the product. [0003] Most of the existing automatic spring processing equipment is online annealing, and then do cutting, hooking, curling and other processe...

AI Technical Summary

Problems solved by technology

[0004] However, due to the difference in the conveying length of the steel strip between the annealing feeding mechanism and the forming feeding mechanism, it will cause inconsistency between the annealing position formed during the annealing of the steel strip and the punching position during the forming of the steel strip. The annealing position of the annealed steel strip needs to be compensated accordingly, but when the difference in this position is unstable or the cumulative error is generated by multiple cycles of operation, it will bring problems to the operation of the equipment, or even fail to operate

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