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Punching die structure for avoiding product grinning

A die-cutting mold and exposed white technology, which is applied in the field of product production molds, can solve the problems of poor tensile properties of non-woven fabrics and products exposed white

Active Publication Date: 2013-09-04
NANTONG CHAODA EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the punching process, the composite material is in direct contact with the knife edge, causing friction, so that there is a large sequence of material cutting. At the same time, the tensile properties of non-woven fabrics are poor, which easily leads to whitening of the product.

Method used

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  • Punching die structure for avoiding product grinning
  • Punching die structure for avoiding product grinning

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0014] In order to deepen the understanding of the present invention, the structure of the punching die of the present invention for avoiding whitening of the product will be described in further detail below in conjunction with the embodiments and drawings.

[0015] figure 1 with figure 2 It schematically shows the structure of the punching die for avoiding whiteness of the product according to an embodiment of the present invention. This example is only used to explain the present invention and does not constitute a limitation on the protection scope of the present invention.

[0016] As shown in the figure, the punching puncture composite ejection mold of the present invention includes: an upper mold core 10 and a lower mold core 20. The upper mold core 10 and the lower mold core 20 cooperate with each other to form a mold body 1, wherein the upper mold The outer periphery of the core 10 and the lower mold core 20 are provided with knife edges 30 engaged with each other.

[0017...

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PUM

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Abstract

The invention discloses a punching die structure for avoiding product grinning. The punching die structure for avoiding the product grinning comprises an upper die insert and a lower die insert, wherein the upper die insert and the lower die insert are matched with each other to form a die body. The punching die structure for avoiding the product grinning is characterized in that meshed cutter edges are arranged on the peripheries of the upper die insert and the lower die insert, and the outer side of the cutter edge of the upper die insert extends towards the direction of the lower die insert to form a stretching portion. The punching die structure for avoiding the product grinning enables a composite board to be extruded, pre-stretched and formed basically through the stretching portion, and then cutting is performed, so that a grinning phenomenon caused by friction between product edges and the cutter edges is avoided.

Description

Technical field [0001] The invention relates to a product production mold, in particular to a punching mold structure for avoiding whiteness of the product. Background technique [0002] Materials such as the roof of vehicle interiors are made of composite materials such as non-woven fabrics and glass fiber mats. Among them, non-woven fabrics have poor tensile properties. [0003] When stamping and forming the composite material, the composite material is first heated by infrared rays, and then forming and punching are performed. In the process of punching, the composite material is in direct contact with the knife edge, causing friction, which causes the material to be cut in a larger order. At the same time, the non-woven fabric has poor tensile properties and easily causes the product to appear white. Summary of the invention [0004] The purpose of the present invention is to overcome the above shortcomings and provide a punching die structure that can avoid product whitening. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B26F1/44B26D7/27
Inventor 冯建军
Owner NANTONG CHAODA EQUIP CO LTD