Aluminum screw packaging tank and production method

Abstract

The invention discloses a screw-type packaging aluminum can and a production method thereof; the design key point lies in that the production method includes the following steps: the upper edge of a can bottom extends upwards to form a can wall, the can wall is contracted upwards to form a can shoulder and a can neck, the upper part of the can neck is also contracted to form an assembly part which is equipped with a threaded sleeve, a ring-shaped step is formed between the assembly part and the lower part of the can neck, an opening at the upper end of the assembly part is flanged to form a can mouth with a lip, the threaded sleeve is sheathed between the ring-shaped step and the lip of the can mouth, and the can wall, the can bottom, the can shoulder and the can neck are integrally formed. The invention aims at providing a screw-type packaging aluminum can which has beautiful appearance, light-shading property, good sealing performance as well as high added value and high level; furthermore, the invention provides a production method of the screw-type packaging aluminum can with simple processing method and high degree of automation.

Description

[technical field] [0001] The invention relates to an aluminum screw packaging can and a production method. [Background technique] [0002] Screw-top packaging can is a packaging container widely used in various industries, and can be used to hold beverages, wine, etc. The screw-top packaging jar is easy to operate, safe and reliable, and is deeply loved by users. [0003] At present, the screw-top packaging jars used in the market are generally made of plastic. This kind of plastic screw-top packaging jars has the following disadvantages: poor light-shielding performance, unable to adapt to the filling inside; and the product grade of plastic screw-top packaging jars is low , low added value. For this reason, people begin to use aluminum screw-top packaging cans, but the screw openings of existing aluminum quality screw-top packaging cans are directly rolled by a thread rolling device. Such a structure has the following disadvantages: first, in the packaging cans The inne...

AI Technical Summary

Problems solved by technology

[0003] At present, the screw-top packaging jars used in the market are generally made of plastic. This kind of plastic screw-top packaging jars has the following disadvantages: poor light-shielding performance, unable to adapt to the filling inside; and the product grade of plastic screw-top packaging jars is low , low added value

For this reason, people begin to use aluminum screw-top packaging cans, but the screw openings of existing aluminum quality screw-top packaging cans are directly rolled by a thread rolling device. Such a structure has the following disadvantages: first, in the packaging cans The inner wall of the neck forms an internal thread, and only a threaded can lid can be used to seal the cap, instead of using a cork or the like in the mouth of the can to seal, and the sealing performance is limited; secondly, because the inner wall of the packaging can neck has an internal thread, the solution is easily adsorbed on At the inner thread, the solution adsorbed on the inner thread after packaging is easy to deteriorate and become moldy, which affects the packaging and storage effect

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