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Protrusion pulling die

A technology of molds and mold bases, applied in forming tools, manufacturing tools, presses, etc., can solve problems such as product deformation, product distortion, and poor product quality, and achieve the effects of reducing costs, simple structure, and improving service life

Inactive Publication Date: 2015-01-07
KUNSHAN BOJIAN PRECISION MOLD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In some molds now, it is easy to deform the product when it is stretched. The main reason for the convex deformation is that the material flows irregularly during the molding process, which leads to the distortion of the product and the poor quality of the product.

Method used

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Embodiment Construction

[0013] like Figure 1~2 Shown, a kind of pull-convex mold comprises upper mold and lower mold, and upper mold comprises the upper support plate 1 that connects from top to bottom, upper spacer 2, upper mold base 3 and upper template 4, and lower mold includes from bottom to top Connected lower supporting plate 5, lower cushion block 6, lower mold base 7 and lower stripping plate 8, the upper template 4 is fixedly equipped with a pull bump 9, and both sides of the pull bump 9 are provided with positioning convex hulls 10, and the upper mold The base 3 is equipped with a spring I11, the lower end of the spring I11 is connected to a T-shaped ejector pin 12, the T-shaped ejector pin 12 passes through the upper mold plate 4, and a nitrogen spring 13 is fixedly installed on one side of the lower mold base 7, and the nitrogen spring 13 is connected to an input block 14 , the input block 14 is fixed on the lower stripping plate 8, and the other side of the lower mold base 7 is provide...

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Abstract

The invention discloses a protrusion pulling die. A protrusion pulling block is fixedly mounted on an upper die plate and both sides of the protrusion pulling block are respectively provided with a positioning protrusion. A spring I is mounted on an upper die base and the lower end of the spring I is connected to a T-shaped ejector pin penetrating the upper die plate. A nitrogen gas spring is fixedly mounted on one side of a lower die base and connected to an insertion block fixed to a lower stripper plate. A spring II is arranged on the other side of the lower die base and connected to a T-shaped ejector pin penetrating the lower stripper plate to be matched with a product. The lower stripper plate is provided with a guide groove matched with the protrusion pulling block and further provided with a positioning groove matched with the positioning protrusion. The protrusion pulling die is simple in structure, ensures the stability during working, prevents the deformation of the product in a protrusion pulling process, improves the production efficiency, reduces the cost of the pulling protrusion process, and improves the service life.

Description

technical field [0001] The invention relates to a mold, in particular to a stretching mold. technical background [0002] Stamping die is a kind of stamping die, which processes materials (metal or non-metal) into parts (or semi-finished products) in cold stamping. Stamping - is a pressure processing method that uses a mold installed on a press to apply pressure to the material at room temperature to cause separation or plastic deformation to obtain the required parts. Press die is an essential process equipment for stamping production, and it is a technology-intensive product. The quality, production efficiency and production cost of stamping parts are directly related to the precision quality of mold design and mold parts. In some molds now, it is easy to deform the product during embossing. The main reason for the embossing and deformation is that the material flows irregularly during the molding process, which leads to the distortion of the product and the poor quality...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D37/10B30B15/02
CPCB21D37/10B30B15/02
Inventor 不公告发明人
Owner KUNSHAN BOJIAN PRECISION MOLD
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