Device, system and method for realizing precise code tagging of top covers of zip-top cans

Abstract

The invention provides a device, system and method for realizing precise code tagging of top covers of zip-top cans. Code tagging is conducted on a large metal sheet, the initial forms of basic coversentering a zip-top can top cover processing device are adjusted, thus all the basic covers are rotated to the same angle and then fed, the set positions, on the basic covers entering a production line, of identification codes are ensured, thus after processing, the identification code are located at the same position of finished zip-top can top cover products, and precise code tagging of the topcovers of the zip-top cans is achieved. The same angle means that after all the basic covers are rotated, the identification codes are located at the same position on the basic covers relative to a conveying unit. According to the code tagging method, the identification codes in all the basic covers are rotated to the same position in the feeding process, thus it can be ensured that the identification codes in the basic covers conveyed into the zip-top can top cover processing device are located at the same position, accordingly the positions of the identification codes in the finished zip-topcan top cover products can be ensured, and precise code tagging of the top covers of the zip-top cans is achieved.

Description

technical field [0001] The present invention relates to a device for realizing accurate coding on the inner surface and / or outer surface of the top cover of pop cans, and also relates to a coding system including the above-mentioned device and a corresponding coding method, which belongs to the manufacturing of packaging containers technology field. Background technique [0002] Pop-top cans are a commonly used beverage packaging container, which has the advantages of light weight, small size, unbreakable and easy to carry, and is favored by people. According to the structure, cans can be divided into two types: two-piece cans and three-piece cans. Among them, the three-piece can is composed of the can body, the bottom and the top cover. The can body has seams, and the can body is sealed with the top cover and the bottom of the tank; The can body is composed of two parts, and the can body is sealed with the top cover. The main difference between the two is that the manufa...

AI Technical Summary

Problems solved by technology

However, in this way of coding, it is necessary to destroy the existing protective coating on the surface of the top cover of the can, or to spray UV ink on the surface of the existing edible protective coating

This coding method is likely to cause various problems including food safety and corrosion resistance. Therefore, it is necessary to improve the existing coding method and coding system

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