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An ultra-thin plate deep drawing anti-wrinkle and anti-cracking process and its mold

An ultra-thin sheet, wrinkle-resistant technology, used in forming tools, manufacturing tools, metal processing equipment, etc., can solve the problem of thin sheets without wrinkle resistance and crack resistance, and achieve stable flow, stacking and wrinkle elimination, and deformation. less effect

Active Publication Date: 2018-04-27
苏州神本精密机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the sheet made by this method does not have wrinkle resistance and crack resistance

Method used

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  • An ultra-thin plate deep drawing anti-wrinkle and anti-cracking process and its mold

Examples

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Embodiment Construction

[0022] The implementation of the present invention will be illustrated by specific specific examples below, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0023] see figure 1 . It should be noted that the structures, proportions, sizes, etc. shown in the drawings attached to this specification are only used to match the content disclosed in the specification, for those who are familiar with this technology to understand and read, and are not used to limit the implementation of the present invention. Limiting conditions, so there is no technical substantive meaning, any modification of structure, change of proportional relationship or adjustment of size, without affecting the effect and purpose of the present invention, should still fall within the scope of the present invention. The disclosed technical content must be within the scope covered. At the same time, term...

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Abstract

The invention provides a deep stretching anti-wrinkle and cracking-resistant process for ultra-thin plates and a mold thereof. The mold comprises an upper mold seat and a lower mold seat, wherein a lower supporting plate is arranged under the lower mold seat; an upper mold plate is arranged under the upper mold seat; three stretching punches are arranged under the upper mold plate; a lower mold plate is arranged on the lower mold seat; three stretching concave mold bodies are arranged in the lower mold plate; the stretching punches are matched with the stretching concave mold bodies in shape; the stretching concave mold bodies correspond to the stretching punches above in position; an inner demolding part is arranged in each stretching concave mold bodies; springs are arranged between the inner demolding parts and the lower supporting plate; and a pressing plate is arranged below the stretching punches and provided with edge pressing rings, and the edge pressing rings are located on the peripheries of the stretching punches. Materials to be stretched can flow into a forming mold cavity with sufficient size to be stretched so that the purpose of deep stretching of ultra-thin materials can be realized. The added edge pressing rings are used for shaping the roots of the stretched products, and the problem of wrinkling of the products is solved.

Description

technical field [0001] The invention relates to a mold. Background technique [0002] When conventional ultra-thin sheet is stretched, due to the thinning of the material during stretching or the uneven pressing force of the mold during the initial pressing process, the product will crack or wrinkle after stretching. Thin necks tend to appear prematurely and too quickly during thinning and stretching. Due to the stacking and uneven flow of materials and the high temperature in the mold during stretching, the material hardens, making it premature in the stretching process. Cracking occurs, which is especially obvious when rectangular stretching is formed. Due to the uneven flow direction of the material, if the pressing force is uneven or the pressing force is too small or too large, the product will not be stretched ideally or the process connection of the stretching process will not achieve the ideal effect, so that deep drawing cannot be achieved. stretched state. Stack...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21D22/22B21D22/30B21D35/00B21D37/10
CPCB21D22/22B21D22/30B21D35/002B21D37/10
Inventor 蔺斌
Owner 苏州神本精密机械有限公司
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