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Deep punch method

A technology of deep drawing and negative mold, which is applied in the field of deep drawing, and can solve problems such as difficult deep drawing, hard magnesium plate, and defects in processing efficiency.

Inactive Publication Date: 2006-02-22
伊田 忠一
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, its disadvantage is that when performing stamping operations, the mold must be heated every time, thus causing serious defects in processing efficiency
Moreover, when the stamping process is repeated, the magnesium sheet becomes harder and harder to draw deep, and there is a serious problem that cracks and gaps are generated on the surface of the formed product

Method used

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Embodiment Construction

[0038] A first embodiment of the present invention will be described below with reference to the accompanying drawings, in which, figure 1 Shown is the relationship between the male mold 1, the vertically movable plate to be formed, that is, the magnesium plate 5, and the mounting table 3, which has a substantially rectangular opening portion 4 at its central portion, so that the male mold 1 The convex portion 12 is inserted therein, which will be described below.

[0039] On the mounting table 3, the magnesium plate 5 is placed so that it covers the opening portion 4 of the mounting table 3, and a plurality of, preferably two or three, resin films 6 are stacked or placed in an overlapping relationship on the top of the magnesium plate 5, For example, films of styrene, vinyl, etc., the thickness of each resin film is about 0.02mm. By providing the above-mentioned two or three resin films, each resin film can freely move or slide relative to each other, and therefore, shrinkag...

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Abstract

The invention provides a method for deep drawing, which contains the following steps: between the positive mold and the former being equipped with a compaction limiting plate which has an open for the inserting of positive mold, the lower compaction limiting plate being equipped with a cantilever plate which can move vertically in the former, thus, the upper surface of the cantilever plate locating on the same plane with the former, a connecting link being equipped to arrange the cantilever plate on the top, a support base being equipped to fasten the lower said connecting link, a elastic supporting member being equipped to support the support base, the positive mold being inserted into the former, and the perimeter end of the magnesium plate being supported by the compaction limiting plate.

Description

[0001] This application is a divisional application of Chinese patent application No. 00131971.X (application date: October 30, 2000; invention name: deep drawing method). technical field [0002] The present invention relates to a method of deep drawing special hard metal materials such as magnesium materials. Background technique [0003] So far, there have been many kinds of plastic products, and therefore, a large amount of plastic garbage or waste is generated or discarded. Plastic waste is incinerated together with combustible waste, thereby causing a serious problem of generating air pollution and other environmental problems. Moreover, even if plastic products are recycled and reused, the plastic products have the disadvantage that when they are recycled to make new products, the cost of recycling them is high and unprofitable, so plastic The recovery rate of the product is extremely low. [0004] At present, the use of magnesium materials as a substitute or replac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D22/02B21D22/20B21D37/12B21D37/08
Inventor 高松勉
Owner 伊田 忠一
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