Can and production technology

Abstract

The invention discloses a tank body and a production process. The tank body includes a bottom, a tank body, a cover, a mouth and a knob. The cross section of the tank body is a transparent body such as a square or a circle, and the lower part of the transparent body is sealed. The bottom and the upper part of the transparent body are sealed with a cover, and the cover is provided with a mouth near the edge, and a knob is sealed on the mouth. Its production process includes the following steps: 1. Select rectangular raw materials, and weld the seams after rolling; 2. Expand and shape the product in step 1 through a hydraulic press; 3. According to the cross-sectional shape of the can body in step 2, Select the original material with the same cross-sectional shape as the cover, and press the mouth and the cover with the mouth of the inverted T-shaped structure with a press; 4. According to the cross-sectional shape of the can body in step two, select the raw material with the same cross-sectional shape as the bottom; 5. Use an automatic seaming machine to compress the cover and bottom by folding and compacting. It is small in size, light in weight, not easy to damage, easy to recycle and reuse; no pollution, no harmful substances, and can be stored for a long time.

Description

technical field [0001] The invention belongs to the technical field of machinery manufacturing, and specifically relates to a can body and a production process for packaging all liquids such as cans, wines, beverages, liquid condiments, edible oils, solvents, paints, and the like. Background technique [0002] Generally, tinplate, glass and glue are used for food cans, and glass is relatively stable but bulky, heavy and easy to break, which is not conducive to recycling. However, rubber is not suitable for long-term storage. It will release harmful substances at high temperatures, which will have a certain impact on the preserved liquid substances, and it is also not conducive to packaging and recycling, causing pollution to the environment. The traditional tinplate outer packaging such as: beverages, etc., because of the use of the inner coating, which contains bisphenol A, since 2012, the United States PDA / California 65, Europe and other countries ROSH / DN71, etc. The cont...

AI Technical Summary

Problems solved by technology

[0002] General food cans use tinplate, glass and glue, while glass is relatively stable but bulky, heavy and easy to break, which is not conducive to recycling

However, rubber is not suitable for long-term storage. It will release harmful substances at high temperatures, which will have a certain impact on the stored liquid substances, and it is also not conducive to packaging and recycling, causing pollution to the environment.

The traditional tinplate outer packaging such as: beverages, etc., because of the use of the inner coating, which contains bisphenol A, since 2012, the United States PDA / California 65, Europe and other countries ROSH / DN71, etc. The surface in contact has been set to strict standards and content control, and tinplate is always iron coated, the welding surface and itself are easy to oxidize and rust, which is not conducive to long-term storage

Images