Aluminium screw-on packaging jar and manufacturing method thereof

Abstract

The invention discloses an aluminium screw-on packaging jar, which comprises a jar bottom. The aluminium screw-on packaging jar has the essential scheme that the jar bottom is provided with a bottom side which is moulded downwards in an extruding manner and is protruded out of the jar bottom downwards; the edge of the bottom side extends upwards to form a jar cylinder; the jar cylinder is shrunk upwards to form a jar shoulder; the jar shoulder is shrunk upwards to form a jar neck; the jar neck is = provided with an annular groove and an inclined bulge loop which is arranged at the upper end of the annular groove to incline upwards; an external thread is arranged at the upper end of the inclined bulge loop of the jar neck; a jar opening with a lip is arranged at the opening end of the jar neck in a flanging manner. The invention further discloses a manufacturing method for the aluminium screw-on packaging jar. The method comprises the following steps: a, cutting; b, stamping; c, stretching the jar cylinder; d, finishing and polishing; f, cleaning; g, protecting; h, necking and moulding; and i, cleaning and leak hunting. The aluminium screw-on packaging jar has advantages of high anti-pressing and anti-twisting strength, simple structure, anti-counterfeiting performance and simplicity in manufacturing.

Description

【Technical field】 [0001] The invention relates to a manufacturing method of a packaging can, in particular to an aluminum screw-mouth packaging can and a manufacturing method thereof. 【Background technique】 [0002] The packaging bottles of medical aerosol cans used in the market are generally made of glass. Glass aerosol cans have the following disadvantages: low pressure capacity, poor light-shielding performance, and cannot be used to store the filling inside; The grade is low, the added value is low, and the bottle body of the glass packaging bottle is not easy to print, and it is usually marked with a label, which is poor in moisture-proof, waterproof and anti-counterfeiting. For this reason, people are more willing to use metal aerosol cans, which are light in weight, easy to carry, easy to operate during use, safe and reliable, and are deeply loved by users. The existing aluminum packaging cans have high production cost, low strength of the can body, insufficient vis...

AI Technical Summary

Problems solved by technology

[0002] The packaging bottles of medical aerosol cans used in the market are generally made of glass. Glass aerosol cans have the following disadvantages: low pressure capacity, poor light-shielding performance, and cannot be used to store the filling inside; Low grade, low added value, glass packaging bottle body is not easy to print, usually use labels to mark, poor moisture-proof, waterproof and anti-counterfeiting, at the same time, high transportation and storage costs

Existing aluminum packaging cans have high production costs, low strength of the can body, insufficient visual effects, complex production methods, and high production costs

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