Punching cutter device specially for processing soft flat profile part

A punching knife and flat type technology, which is used in the field of punching cutter devices for processing soft flat profile parts, can solve problems such as adverse effects on the appearance of parts, meet the requirements of size and appearance, and the soft material needs to be punched in the middle of the surface. area smoothing effect

Pending Publication Date: 2019-03-12
SHANGHAI HUAGU VEHICLE IND CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For some parts with flat surface, the process used is to punch out directly with a punching knife, such as figure 1 Therefore, at the same time, due to the softness of the PET felt itself, during the processing process, when the knife edge is punched downward, the PET felt is compressed, so that after the punching is completed, an inward concave arc will appear on the edge of the part, which will cause poor appearance of the part. influence, such as figure 2 shown

Method used

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  • Punching cutter device specially for processing soft flat profile part
  • Punching cutter device specially for processing soft flat profile part
  • Punching cutter device specially for processing soft flat profile part

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Embodiment Construction

[0026] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0027] In the punching knife device specially used for processing soft flat surface parts proposed in an embodiment of the present invention, its structure can be found in Figure 5 and Figure 6 As shown, it mainly includes a knife seat and a punching knife unit 1 installed on the knife seat. The punching knife unit 1 is composed of two punching knife heads arranged in parallel at intervals. The two punching knife heads are respectively the first punching knife The cutting head 3 and the second punching head 4, the side of the punching head facing the soft flat surface part to be processed is in a vertical plane shape, and the corresponding other side is an arc surface that is inclined outward and has a smooth transition shape.

[0028] When the punching knife in the above-mentioned embodiment is punching the soft flat surface parts, such as when processing the PE...

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Abstract

The invention relates to a punching cutter device specially for processing a soft flat profile part, comprising a knife holder and a punching cutter unit installed on the knife holder; the punching cutter unit is composed of two punching cutter heads in interval and parallel setting; one side of each punching cutter head towards the soft flat profile part to be processed is a vertical plane shapeand the other corresponding side is an arc-surface shape in outward inclination and smooth transition. Compared with the prior art, the punching cutter device specially for processing the soft flat profile part provided by the invention can compensate the originally cut area effectively through increasing the punching cutter heads, so that the obtained target part has flat edges; and the punchingcutter device is suitable for punching and processing a majority of soft interior materials.

Description

technical field [0001] The invention relates to a punching knife structure, in particular to a punching knife device specially used for processing soft flat surface parts. Background technique [0002] At present, for automotive interior acoustic parts, PET felt is widely used for its high sound absorption rate, excellent heat insulation and high temperature resistance, and non-toxic characteristics. For some parts with flat surface, the process used is to punch out directly with a punching knife, such as figure 1 Therefore, at the same time, due to the softness of the PET felt itself, during the processing process, when the knife edge is punched downward, the PET felt is compressed, so that after the punching is completed, an inward concave arc will appear on the edge of the part, which will cause poor appearance of the part. influence, such as figure 2 shown. Contents of the invention [0003] The object of the present invention is to provide a punching knife device ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B26F1/44B26D7/26
CPCB26F1/44B26D7/2628
Inventor 刘建平
Owner SHANGHAI HUAGU VEHICLE IND CO LTD
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