Alloy bottom cover forming process

Abstract

The invention discloses an alloy bottom cover forming process. The alloy bottom cover forming process comprises the steps of (1) wave shearing of coiled material; (2) printing and coating processing;(3) basic cover forming, specifically, a countersunk rib is pre-formed at the edge of a cover blank at first, and then the edge of the cover blank is rolled inwards to form a sealing edge; the sealingedge of a basic cover subjected to edge rolling is glued, and then the drying is carried out to form the basic cover; and the basic cover is collected into a barrel shape by using a cover collectingdevice; and (4) packaging and warehousing. The cover collecting device comprises a U-shaped cover collecting groove and mounting seats respectively arranged in the length direction of the U-shaped cover collecting groove, wherein cover blocking air bags are arranged at intervals on one sides, facing the U-shaped cover collecting groove, of the mounting seats; air channels are formed in the mounting seats and connected with inner cavities of the cover blocking air bags on the mounting seats; each cover blocking air bag is in the shape of a plate with the plate surface facing a bottom cover after being inflated; and an air pressure maintaining device is arranged at one end of each air channel. According to the alloy bottom cover forming process, the rebound of the cover blocking air bags isachieved through air pressure, and the using effect of the cover collecting device is guaranteed.

Description

technical field [0001] The invention relates to the field of bottom cover manufacturing, in particular to an alloy bottom cover forming process. Background technique [0002] Along with the development of food industry, canned food generally appears in people's daily life. Can packaging is mainly composed of three pieces of cans, namely the top cover, can body and bottom cover. The top cap is usually an easy open cap. When manufacturing the bottom cover, there are many processes from sheet material to molding to packaging. The equipment of each process is different and often needs to be changed during the production process. Therefore, each process needs to collect pieces of bottom cover and Finishing (referred to as cover collection) process, and then transported to the equipment of the next process. The process of collecting and arranging the bottom cover (collecting the cover) is to integrate the bottom cover from the original sheet shape into a cylindrical shape, whic...

AI Technical Summary

Problems solved by technology

In the process of cap collection, the rear end (cap entry end) of the cap collection groove of the bottom cover often has a pushing device or a cover pusher to push the bottom cover away, while the front end (cap exit end) is often in a free state due to limited conditions. This causes the bottom cover to be prone to tipping forward at the front end, which is prone to scratches on the bottom cover, resulting in arching or jamming.

Most of the existing cover collecting devices use the elastic force of springs or rubber strips to achieve recovery. After a long time of use, the elastic performance decreases, causing the cover blocking device to fail

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