Mold for producing RPT sheet ring-pulls in cold stamping continuous progressive manner

A technology of cold stamping and sheet retention, applied in the field of production molds for pull tabs of cans, can solve the problems of reducing the area and being unusable, and achieve the effect of increasing the overall area

Active Publication Date: 2016-04-20
BEIJING NAALE PACKAGE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing RPT pull rings have larger finger holes, the presence of finger holes reduces the area of ​​the ring body around the finger holes, and the sheet material in the corresponding finger hole area is punched out as waste and cannot be used

Method used

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  • Mold for producing RPT sheet ring-pulls in cold stamping continuous progressive manner
  • Mold for producing RPT sheet ring-pulls in cold stamping continuous progressive manner
  • Mold for producing RPT sheet ring-pulls in cold stamping continuous progressive manner

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Embodiment Construction

[0033] The present invention will be further elaborated below in conjunction with the embodiment given with accompanying drawing, but embodiment does not constitute any limitation to the present invention.

[0034] The mold of the RPT retaining tab provided in this embodiment is a continuous progressive mold for cold stamping, and the continuous progressive production process of cold stamping is as follows: cutting process, concave process, edge trimming process, pre-rolling process, turning Edge process, forming process, scoring process; for the molds are: cutting die, punching die, trimming die, pre-rolling die, flanging die, forming die, scoring die; among them, trimming die, turning The side mold and forming mold are exactly the same as the traditional production mold with finger hole pull ring, and its structure description is omitted.

[0035] see figure 1 , figure 2 , the cutting die is composed of a cutting punch 1 and a cutting die 2, the top of the cutting punch 1...

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PUM

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Abstract

The invention relates to a mold for producing RPT sheet ring-pulls in a cold stamping continuous progressive manner. The mold comprises a cutting mold, a dinting mold, an edge cutting mold, a pre-rolling mold, an edge turning mold, a forming mold and a line inscribing mold in sequence according to the progressive process, wherein the cutting mold is used for cutting a section of arc cutting opening on a sheet body in which a reserved finger hole position of a ring-pull is formed; the dinting mold is used for pressing the sheet body in which the reserved finger hole position of the ring-pull is formed to obtain a finger hole sunken area; the pre-rolling mold is used for pressing the outer edge of the ring-pull, cut by the edge cutting mold, to obtain a chamfered angle; the edge turning mold is used for performing edge turning on the periphery of the ring-pull; the line inscribing mold is used for performing line inscribing on the finger hole sunken area of the RPT sheet ring-pull formed by the forming mold, so that a sheet capable of being integrated with the RPT sheet ring-pull and being torn off along an inscribed line can be formed. By using the mold, a sheet material of the finger hole area can be reserved; when the sheet material is used for product package, LOGO can be printed on, and letters can be inscribed on the reserved area, namely the sheet, so that a product publicity manner is provided for clients; the line inscribing can be performed on the reserved area, so that the forming of a finger hole is realized, and the use of the ring-pull is not influenced.

Description

technical field [0001] The invention relates to a mold for producing pull rings of pop cans, in particular to a mold for continuously and progressively producing RPT pull rings by cold stamping. Background technique [0002] As a popular food and beverage packaging, pop cans are accepted by more and more merchants and consumers for their lightness and convenience. Therefore, more and more food and beverage companies use pop cans as product packaging. A pre-opening area is formed on the lid body of the pop-top can by scoring lines, and the RPT pull ring is riveted in the pre-opening area. Existing RPT pull rings have relatively large finger holes, and the presence of the finger holes reduces the area of ​​the ring body around the finger holes, and the sheet material in the corresponding finger hole area is punched out as waste and cannot be used. Contents of the invention [0003] The object of the present invention is to provide a die for continuous and progressive cold s...

Claims

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Application Information

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IPC IPC(8): B21D37/10B21D53/16
CPCB21D37/10B21D53/16
Inventor 王志刚黄晓飞
Owner BEIJING NAALE PACKAGE CO LTD
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