High-strength thick-wall bottle and can die

A high-strength, bottle-can technology, applied in the direction of forming tools, manufacturing tools, metal processing equipment, etc., can solve the problems of insufficient compressive strength of the bottom of the bottle and can, thick wall of the can, easy to break the can, and wrinkling of the can. Achieve the effect of increasing stable quality, improving axial bearing force and reducing wrinkles

CN109127914AInactive Publication Date: 2019-01-04GUANGZHOU RONGXIN CONTAINER
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2019-01-04
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a high-strength thick-wall bottle and can die. The high-strength thick-wall bottle and can die is characterized in that one end, facing a punch, of an inner bottom die is equipped with an arc-shaped protruded surface, wherein R angle of the arc-shaped protruded surface is 45-46mm; the side edge of the arc-shaped protruded surface is in smooth transition with the outer wall of the inner bottom die through a circular arc section, and the R angle of the circular arc section is 24.5-25.5mm; an outer bottom die sleeves the inner bottom die; one side, facing the punch, of theouter bottom die is provided with a concave chamber; an inclination angle between the inner wall surface of the concave chamber and an axis of the outer bottom die is 45 degrees; the arc-shaped protruded surface is arranged in the concave chamber; a clearance for forming an inclination angle of the bottom part of the bottle or can is arranged between the inner wall surface of the concave chamber and the outer wall of the inner bottom die; one side, facing the outer bottom die, of a punching nose is provided with an inclined surface which is matched with the concave chamber; an included angle between the inclined surface and an axis of the punching nose is 45 degrees; and a step surface for controlling the wall thickness of the bottle or can is arranged at the outer wall of a punch body. The high-strength thick-wall bottle and can die solves the problem that the pressure resistance of the bottom of the bottle or the can manufactured through an existing die is low, and a can body is easily wrinkled, and the wall of a can body is thin, and the can is easily broken.
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Description

technical field

[0001] The invention relates to the field of stretching machine molds, in particular to a high-strength thick-walled bottle mold. Background technique

[0002] The forming of pop-top cans generally uses a stretching machine, and the forming process is formed through the sequential action of each part of the stretching machine mold (stretching punch, punching nose, inner bottom mold, outer bottom mold, re-drawing ring, ironing thin ring) , so the mold directly determines the shape of the jar.

[0003] However, in the existing molds for bottles and cans, when the material thickness is 0.270mm or more, the cans are prone to breakage due to the thin wall thickness during the stretch forming process of the cans, and the compressive strength of the bottom of the cans is not enough, and the bottom of the cans is prone to cracking. The wrinkle phenomenon has great limitations. Contents of the invention

[0004] In order to make up for the deficiencies in the prio...

Examples

Embodiment 1

[0030] Such as figure 1 As shown in -7, the present invention provides a kind of high-strength thick-walled bottle mold suitable for stretching machine, including inner bottom mold 1, outer bottom mold 2 and punch 3, wherein punch 3 includes the The nose 31 and the punch body 32 are detachable.

[0031] Such as figure 2 As shown in -3, the end of the inner bottom mold 1 facing the punch is provided with an arc-shaped convex surface 11, and the R angle of the arc-shaped convex surface 11 is between 45-46mm. Preferably, the R angle of the arc-shaped convex surface 11 is set to 45.62mm . The edge of the arc-shaped convex surface 11 and the outer wall of the inner bottom mold 1 are smoothly transitioned by an arc segment 12, and the R angle of the arc segment 12 is between 24.5-25.5mm. Preferably, the R angle of the arc segment 12 is set to 25.00mm . Such setting makes the bottom of the bottle 4 after stamping have a larger radian, and the bottom edge also transitions smoothl...