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Automobile punching die ductile iron drawing model face cooling tool

A technology for stamping dies and automobiles. It is applied in the direction of casting molds, cores, and casting mold components. It can solve the problems of shrinkage and shrinkage, large changes in curved surfaces, and it is difficult to ensure surface shrinkage and shrinkage, so as to reduce shrinkage. Shrinkage cavity and accelerated cooling of molding sand

Inactive Publication Date: 2020-07-31
WUHU RUYHOO CASTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Automobile stamping dies mainly produce internal and external sheet metal parts of automobiles, such as doors, side panels, top covers, rear doors, etc. Due to the needs of body design, many structures are relatively complex, and the curved surface changes greatly.
Automobile stamping dies are mainly formed by solid casting resin sand. The process is to ensure the quality of the mold surface. When molding, the mold surface is facing upwards. When melting and pouring, the mold surface is at the bottom. Since the resin sand below is under the molten iron after pouring, it will be overheated for a long time. And the heat is dissipated in time, resulting in heat joints at the concave corners, prone to shrinkage and shrinkage problems
The traditional casting method adopts cold iron laying at this position to enhance chilling, but due to different cooling conditions and many influencing factors in the process, it is difficult to ensure that there will be no shrinkage cavity and porosity on the mold surface

Method used

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  • Automobile punching die ductile iron drawing model face cooling tool
  • Automobile punching die ductile iron drawing model face cooling tool
  • Automobile punching die ductile iron drawing model face cooling tool

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Embodiment Construction

[0020] In order to deepen the understanding of the present invention, the present invention will be further described below in conjunction with examples, which are only used to explain the present invention and do not constitute a limitation to the protection scope of the present invention.

[0021] like Figure 1-5 As shown, the present embodiment provides a cooling tool for the ductile iron drawing model surface of an automobile stamping die, including a middle box 1, which is provided with a full-type casting mold 2 of an automobile stamping mold, and in the middle of the full-type casting mold 2 is The profile 3 of the automobile stamping die, the bottom of the profile 3 passes through the middle of the cooling pipe 4 transversely, and the cooling pipe 4 passes through the concave corner of the profile 3; the cooling pipe 4 is composed of a plurality of straight steel pipes 5 and bent steel pipes 6 The cooling pipe 4 formed by combining a plurality of straight steel pipes ...

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Abstract

The invention aims at providing an automobile punching die ductile iron drawing model face cooling tool. The bottom of a profile is provided with a cooling pipeline matched with the profile in shape.In the cooling pipeline, a plurality of straight steel pipes and bent steel pipes are connected and combined through connection sleeves to form the shape matched with the profile. An inlet pipe of thecooling pipeline is fixed to a middle box through an inlet pipe connector, and an outlet pipe is fixed to the middle box through an outlet pipe connector. Then, an air inlet and an air extraction port are used for air inflow and air outflow. Air extraction cooling is conducted on the concave corner part of the profile, and accordingly, thermal joint part moulding sand cooling is effectively accelerated. Air is utilized for conducting air cooling on local moulding sand at the profile position, and accordingly the problem of shrinkage porosity and cavities of the part is solved.

Description

technical field [0001] The invention relates to the field of solid mold casting of automobile stamping dies, in particular to a cooling tool for the ductile iron drawing model surface of the automobile stamping die. Background technique [0002] Automobile stamping dies mainly produce internal and external sheet metal parts of automobiles, such as doors, side panels, top covers, rear doors, etc. Due to the needs of body design, many structures are relatively complex and the curved surfaces change greatly. Automobile stamping dies are mainly formed by solid casting resin sand. The process is to ensure the quality of the mold surface. When molding, the mold surface is facing upwards. When melting and pouring, the mold surface is at the bottom. Since the resin sand below is under the molten iron after pouring, it will be overheated for a long time. And the heat is dissipated in time, resulting in hot joints at the concave corners, which are prone to shrinkage and shrinkage prob...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C9/02B22C9/22B22D30/00
CPCB22C9/02B22C9/22B22D30/00
Inventor 韦开保左从军刘平白明雪杨俊
Owner WUHU RUYHOO CASTING
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