Pressure-resistant stamping mold for basic cover of easy-to-pull cover

A technology of stamping dies and easy-open lids, which is applied in the field of stamping molds for basic lids of easy-open lids, to achieve the effect of increasing the difficulty of processing and manufacturing

Pending Publication Date: 2021-01-29
SUZHOU SLAC PRECISION EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The invention provides a stamping die for a basic cover of a pressure-resistant easy-open end. The purpose is to solve the problems of reliability and service life of the original basic cover stamping die for an easy-open end on the basis of adapting to the new cover type.

Method used

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  • Pressure-resistant stamping mold for basic cover of easy-to-pull cover
  • Pressure-resistant stamping mold for basic cover of easy-to-pull cover
  • Pressure-resistant stamping mold for basic cover of easy-to-pull cover

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0073] Embodiment 1: A stamping die for a basic cap of a pressure-resistant easy-open lid (no preformed stamping die)

[0074] Such as Figure 1-3 As shown, the stamping die consists of two parts, the lower die 2 and the upper die 1 (see figure 2 ).

[0075] The lower mold 2 is mainly composed of a lower mold base 3, a lower mold core ring 4, a lower mold core 5, a lower binder ring 6 and a lower knife 7 (see figure 2 ), wherein: the lower mold base 3 is an open cylinder (see figure 2 ). The lower mold core ring 4 is an annular body, which is fixed in the opening of the lower mold base 3 by positioning pins and bolts, and is concentric with the lower mold base 3 (see figure 2 ). Described lower mold core 5 is made up of lower mold core seat 21 and lower mold core body 22 (see figure 2 ), the lower mold core seat 21 is fixedly connected with the lower mold core body 22, the action part of the lower mold core 5 is the lower mold core body 22, and the lower mold core b...

Embodiment 2

[0083] Embodiment 2: A kind of pressure-resistant type easy-open lid basic lid stamping die (with preformed stamping die)

[0084] Such as Figure 16 As shown, the stamping die consists of two parts, the lower die 2 and the upper die 1 (see Figure 16 ).

[0085]The difference between embodiment 2 and embodiment 1 is that the bottom of the upper mold core body 20 is different, and the bottom of the upper mold core body 20 in embodiment 1 is a flat bottom, that is, the bottom of the upper mold core body 20 corresponds to the seventh basic cover. The parts of the arc segment R7, the fourth straight line segment L4 and the eighth arc segment R8 are suspended relative to the top of the lower mold core 22 under the mold clamping state. And the bottom of embodiment 2 upper mold core body 20 is provided with the R angle that protrudes downwards for the edge (see Figure 17 ), that is, the bottom of the upper mold core body 20 is provided with a contour corresponding to the eighth ...

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Abstract

The invention discloses a pressure-resistant stamping mold for a basic cover of an easy-to-pull cover. A lower mold mainly comprises a lower mold base, a lower mold core ring, a lower mold core, a lower pressing ring and a lower cutter; and an upper mold mainly comprises an upper mold base, an upper mold core, an upper inner forming ring, an upper outer forming ring and an upper cutter. The stamping mold is characterized in that for a new basic cover type, the top of the lower mold core ring of the lower mold is designed into an outline correspondingly matched with a new cover type; meanwhile,the upper outer forming ring and the upper inner forming ring of the upper mold are designed into an outline and a suspension section vertically matched with the lower mold core ring of the lower mold; the second stop limiting surface in comparative patent 2 is canceled; and the avoidance space in comparative patent 2 is improved as follows: the top edge of the lower mold core is provided with outlines correspondingly matched with the seventh arc section, the fourth straight line section, the eighth arc section and the fifth straight line section of the new cover type. According to the scheme, on the basis of adapting to the new cover type, the problems of reliability and service life of an original stamping mold for a basic cover of an easy-to-pull cover in the using process are solved.

Description

technical field [0001] The invention relates to a stamping die for an easy-open can, in particular to a basic stamping die for an easy-open lid used on a punch (press). The so-called basic cover, commonly known as "light cover", refers to the cover body whose overall shape has been formed but has not yet been scored and installed with a pull ring. Background technique [0002] With the improvement of people's living standards, pop cans are used more and more in the field of food and beverages, especially pop cans are more common in beer and beverage packaging. The can is composed of two parts: the can body and the easy-open lid. The easy-open lid is usually stamped from a metal sheet through a mold to form a basic lid (light lid), and then the engraved line is made on the basic lid and the pull ring is installed to form an easy-open lid. finished product. Among them, the forming and production of basic lids is the core of easy-open end production. Therefore, for easy-open ...

Claims

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Application Information

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IPC IPC(8): B21D51/44B21D37/08
CPCB21D51/44B21D37/08B21D22/24B21D22/22B21D37/10
Inventor 王炳生张玮玮熊康
Owner SUZHOU SLAC PRECISION EQUIP CO LTD
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