CN201198005Y - A battery integral zinc cylinder mold - Google Patents

Abstract

The utility model relates to an integral zinc cylinder mold for a battery, which sets the holes in the die (3) as stepped holes; the aperture of the upper layer of the stepped hole is larger than the aperture of the lower layer, and the bottom core (5) is arranged in the lower hole, and the bottom core ( 5) The upper end surface is slightly higher than the step surface of the step hole of the die. When the utility model works, the stamping force of the punch rod (1) produces stress on the inner edge of the mold, which is absorbed by the hard alloy die (3) and does not occur on the bottom core (5), thus increasing the use of the mold life.

Description

A battery integral zinc cylinder mold

Technical field

The utility model relates to a battery zinc cylinder mold, in particular to a battery integral zinc cylinder mold.

Background technique

China is a big country in battery production. At present, most battery zinc cylinders are processed by integral forming, that is, reverse extrusion forming. This requires the use of stamping dies for zinc cylinder processing. Stamping dies are high-strength operations and are consumables. The material of the die of the mold is made of cemented carbide, which is very durable. In order to save costs and absorb impact, the bottom core is made of traditional materials, and its wear resistance and durability are not as good as cemented carbide. The die hole of the traditional battery zinc cylinder mold is a straight hole with a slight taper. In order to process the required shape of the battery zinc cylinder, the upper end surface of the bottom core must be designed in a basin shape, that is, the middle is low, the surrounding is high, and there must be a circular chamfer around, so that the downward force of the punching rod will be on the bottom during processing. The chamfering of the edge of the core produces stress, which causes the bottom core to wear out faster. The service life of the stamping die is not only related to the production cost of the enterprise, but also to the processing efficiency of the enterprise. However, the traditional stamping die design structure cannot be well Solve the problem of mold service life.

Utility model content

In order to overcome the above problems, the utility model provides a battery integral zinc cylinder mold with simple structure and greatly improved working life.

The technical scheme adopted in the utility model is: it is mainly made up of punch rod (1), die (3), bottom core (5), steel sleeve (4), and steel sleeve (4) and die (3) are Ring, with a through hole in the middle, the die (3) is pressed into the steel sleeve (4) with a taper fit interference, the bottom core (5) is transitionally fitted in the die (3), the steel sleeve (4), the bottom core (5), the concave mold (3) is concentric, the hole in the concave mold (3) is a step hole, and the upper layer aperture is larger than the lower layer aperture, the upper layer aperture is larger than the bottom core diameter, and the step surface corner (6) of the step hole is an arcuate angle ; The upper end surface of the bottom core (5) is a plane, and the upper end surface of the bottom core is 0-0.2mm higher than the step surface of the inner hole of the die. .

The bottom core of the utility model is set in the lower hole of the die, and the necessary chamfers for processing the required shape of the zinc cylinder are set on the die, and the stamping force of the punch rod is controlled by the die of the cemented carbide. Bear, thus increasing the service life of the entire mold. Moreover, the mold structure is simple, and the improved design does not increase the manufacturing cost.

Description of drawings

Fig. 1 is a structural diagram of the utility model;

Fig. 2 is a structural diagram of the utility model die;

Fig. 3 is the utility model bottom core.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

The hole in the concave mold (3) of this kind of mold is a stepped hole. When assembling the mold, the upper surface of the bottom core (5) is installed to be level with the inner step surface of the concave mold. When using the mold to process the product battery zinc cylinder (2 ), the stamping force of the punch rod (1) produces stress on the inner edge of the die, and this force is absorbed by the cemented carbide die (3) and does not occur on the bottom core (5).

The specific embodiments of the utility model have been described above with reference to the accompanying drawings. Obviously, the utility model is not limited thereto, and various modifications within the scope of the utility model are within the scope of protection of the utility model.

Claims (4)

1. cell integrated zinc tube mould, mainly by forming towards rod (1), die (3), end core (5), steel bushing (4), steel bushing (4) and die (3) are annular, the centre has through hole, die (3) is arranged in the steel bushing (4), and end core (5) is arranged in the die (3), and steel bushing (4), end core (5), die (3) are with one heart, it is characterized in that the hole in the described die (3) is a stepped hole; Aperture, described stepped hole upper strata is greater than the lower floor aperture, and the aperture, upper strata is greater than end core (5) diameter; Core of the described end (5) upper surface is the plane.

2. a kind of cell integrated zinc tube mould according to claim 1 is characterized in that the step surface corner (6) of stepped hole is the arc angle.

3. a kind of cell integrated zinc tube mould according to claim 1 is characterized in that end core (5) upper surface and die (3) endoporus step surface are at same horizontal plane.

4. a kind of cell integrated zinc tube mould according to claim 1 is characterized in that end core (5) upper surface is than the high 0-0.3mm of die (3) endoporus step surface.

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