High-output double-acting composite die cup-punching machine and cup-punching process thereof

Abstract

The invention provides a high-output double-acting composite die cup-punching machine. The high-output double-acting composite die cup-punching machine comprises a rack, a driving mechanism and a double-acting composite die assembly and is characterized in that a lower die plate, a middle die plate and an upper die plate are arranged on the rack; the double-acting composite die assembly comprisesa lower die, a middle die and a punching rod which are mounted on the lower die plate, the middle die plate and the upper die plate sequentially; the lower die plate and the upper die plate can make up-down movement under the driving effect of the driving mechanism; and the driving mechanism is provided with cams and a spindle. By designing the movement relation of the cam curve and the eccentricspindle, the upper die plate and the lower die plate moves synergistically, so that two times of stretching can be conducted on a cup-punching machine, and thus larger-diameter and thinner metal raw materials can be used; and meanwhile the invention provides an efficient, reliable and integrated cup-punching process capable of achieving cutting, the two times of stretching and blanking on the samecup-punching machine.

Description

technical field [0001] The invention relates to the technical field of pop can production, in particular to a high-yield double-action composite mold cupping machine and a cupping process thereof. Background technique [0002] Pop cans are widely used in the packaging of various beverages, and have the advantages of convenient use and beautiful appearance. As people's living standards continue to improve and the variety of beverage products is becoming more and more abundant, the demand for cans is also growing. Pop-top cans are usually divided into two types: aluminum and iron. The basic structure is composed of a can body and an easy-open lid. [0003] In order to improve the competitiveness of traditional can factories, it is actually necessary to increase the quantity of aluminum cans per ton. To achieve this goal, there are basically two considerations: [0004] One is to increase the number of molds for the cupping machine, for example, from 10 molds to 12 molds, inc...

AI Technical Summary

Problems solved by technology

Due to the limitation of the two-time stretching coefficient of the metal sheet material, the cutting size is not easy to be too large. At present, the most advanced can-making enterprises at home and abroad use the thinnest aluminum material of 0.265mm, and the material cost of a single can is already at the limit.

In the current existing equipment, most manufacturers aim to reduce the thickness of the metal base material in order to reduce the cost of producing metal cans, because the current cupping machine only has one stretch forming, and the effect of the change on this basis is not obvious

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