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Stretching mould

A drawing die and ring technology, applied in metal processing equipment, forming tools, manufacturing tools, etc., can solve problems such as high heat generation, product quality defects, reduce the service life of upper and lower dies, and achieve the effect of improving quality

Inactive Publication Date: 2012-05-23
YANGZHOU XINBAO ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Stretching is an important form of product processing. The upper mold is used to press the raw material into the lower mold to form it. During the pressing process, due to the strong impact force between the upper mold, the lower mold and the raw material, the friction between each other is serious, and the heat generated Large, if there is no good lubrication performance, it is easy to cause defects in product quality, and at the same time reduce the service life of the upper and lower dies

Method used

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Embodiment Construction

[0010] In the present invention, a spiral annular soft sealing film 2 is arranged on the outer end surface of the upper mold 1 in the circumferential direction, and the annular flexible sealing film 2 and the upper mold 1 are closely attached to form an oil storage area, and the upper mold 1 is located at the oil storage area. Hole 3, oil inlet hole 3 and the oil pipeline of upper mold 1 are communicated.

[0011] In the present invention, a spiral annular soft sealing film 2 is arranged on the inner end surface of the lower mold 4 in the circumferential direction, and the annular soft sealing film 2 and the lower mold 4 are closely attached to form an oil storage area, and the lower mold 4 is located at the oil storage area and an oil inlet hole is provided. 3. The oil inlet hole 3 communicates with the oil pipeline of the lower mold 1.

[0012] When the present invention is used, the upper mold 1 presses the raw material into the lower mold 4, the annular flexible sealing fi...

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Abstract

The invention relates to a stretching mould, which comprises an upper mould and a lower mould matched with the upper mould, and is characterized in that an annular soft sealing film is arranged in the circumferential direction on the outer end surface of the upper mould, the annular soft sealing film and the outer end surface of the upper mould are closely bonded, an oil-feeding hole is arranged in a space formed by the annular soft sealing film and the upper mould, and the oil-feeding hole is communicated with an oil-passage pipeline of the upper mould; and an annular soft sealing film is arranged in the circumferential direction on the inner end surface of the lower mould, the annular soft sealing film and the inner end surface of the lower mould are closely bonded, an oil-feeding hole is arranged in a space formed by the annular soft sealing film and the lower mould, and the oil-feeding hole is communicated with an oil-passage pipeline of the lower mould. Since the stretching mould is provided with the annular soft sealing films, during working, the annular soft sealing films are broken through extrusion under pressure, so that inside lubricating oil flows out. Thereby, a working environment among the upper mould, the lower mould and a product is improved, the quality of the product is improved, and the service lives of the upper mould and the lower mould are prolonged.

Description

technical field [0001] The invention relates to a drawing die. Background technique [0002] Stretching is an important form of product processing. The upper mold is used to press the raw material into the lower mold to form it. During the pressing process, due to the strong impact force between the upper mold, the lower mold and the raw material, the friction between each other is serious, and the heat generated Large, if there is no good lubricating performance, it is easy to cause defects in the quality of the product, and at the same time reduce the service life of the upper and lower dies. Contents of the invention [0003] The purpose of the present invention is to provide a drawing die that improves the working performance between the upper die, the lower die and the product, thereby increasing the service life of the upper die and the lower die. [0004] The technical scheme of the present invention is: an annular soft sealing film is arranged on the outer end sur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D37/10B21D37/18B21D22/20
Inventor 汤林海
Owner YANGZHOU XINBAO ELECTRIC