Spinning punch forming method for refrigerator door panel

A stamping forming and door panel technology, applied in the direction of forming tools, metal processing equipment, manufacturing tools, etc., to achieve the effect of improving production quality

Active Publication Date: 2011-09-28
GUANGDONG KELON MOLD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide an improved method for forming the refrigerator door panel by rotating and stamping. The application of this method can ensure that the outer surface of the refrigerator door panel is less prone to indentation and crushing , dents, bulging, sagging, scratches and other defects

Method used

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  • Spinning punch forming method for refrigerator door panel
  • Spinning punch forming method for refrigerator door panel
  • Spinning punch forming method for refrigerator door panel

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Embodiment Construction

[0033] The present invention will be further described in detail below in conjunction with the embodiments and the accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0034] Such as Figure 7 and 8 As shown, the working principle of the present invention is as follows: first, the mold is installed on the punch press, and the upper and lower mold mechanisms are opened; the workpiece is put in, the upper slide block of the punch press goes down, the rectangular spring 12 is compressed, and the first-stage floating binder plate 10 is pressed The workpiece is retracted gradually, and the bending die 4 and the front and rear dies 15 enter the forming punch 2 to start bending the B2 side, which is the first stage. At this stage, two conditions must be met: ①The swivel bending die 4 cannot be rotated; Figure 8 The state shown, otherwise the appearance requirements of the workpiece after forming and the completion of other movements cannot ...

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Abstract

The invention discloses a spinning punch forming method for a refrigerator door panel. The punch forming method comprises the steps of forming a circular arc face by spinning and forming side edges. Specifically, the punch forming method comprises the following steps of: gradually extruding the redundant materials on the lateral surface of the circular arc face to flow to the lateral lower part by spinning motion of a spinning forming die so as to complete the formation of the circular arc face, and then completing the formation of the side edges. By optimizing the process, defects such as impression, pressing damage, hollowness, bulge, corner collapse, scrape and the like are not easily caused on the appearance of the refrigerator door panel.

Description

technical field [0001] The invention relates to the field of stamping and forming methods for refrigerator door panels, in particular to a swirling stamping and forming method for refrigerator door panels. Background technique [0002] The refrigerator door panel is made of stainless steel SUS304 with a thickness of 0.5mm. The refrigerator door panel is the front appearance part of the refrigerator, and its quality directly affects the sales level of the market. Therefore, the customer has very strict requirements on it. In addition to ensuring the external dimensions, the external surface is also required to be free from defects such as indentation, crushing, dents, bulges, collapses, and scratches. But for stainless steel, it is not easy to completely solve these problems. [0003] At present, the traditional process scheme of the refrigerator door panel is: 1. Cut corner punching 2. Bend four short sides (such as Figure 8 Middle B2, B3, B4) 3. Curved large R arc surfac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D11/20B21D37/10
Inventor 邱遵文上官雄辉田辉仲张世平黄维超
Owner GUANGDONG KELON MOLD
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