Unlock instant, AI-driven research and patent intelligence for your innovation.

Cast wheel mold cavity exhaust device

a technology of exhaust device and mold cavity, which is applied in the field of molds, can solve the problems of reducing the effective sectional area, affecting the quality of products, and reducing the density of casting structures, so as to improve the smoothness of air circulation, strengthen the exhaust effect, and clean the mold cavity environment

Inactive Publication Date: 2018-09-20
CITIC DICASTAL
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present patent aims to improve the exhaust effect of a wheel casting mold by designing two exhaust channels, which increases the area of air exhaust and strengthens the exhaust effect. By using double structures of exhaust grooves and exhaust pins on both the top and bottom molds, active exhaust of the mold cavity is realized, resulting in improved air circulation, reduced airproof area, and reduced defects in the casting process. Ultimately, this technology ensures high-quality production of wheels.

Problems solved by technology

In the wheel casting process, the mold system is in the atmospheric environment, and if air in the mold cavity is not exhausted thoroughly in the molding process, the defects of oxide inclusions, air holes and the like easily occur in a casting, thus influencing the product quality.
Besides, the defects reduce the density of a casting structure, and reduce the effective sectional area, so that the mechanical properties are seriously substandard, and the safety of a vehicle is greatly influenced.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Cast wheel mold cavity exhaust device
  • Cast wheel mold cavity exhaust device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016]As shown in FIGS. 1 and 2, an improved wheel casting mold cavity exhaust device of the embodiment includes a bottom mold 1, a side mold 2, a top mold 3, an upper exhaust pin 4 and a lower exhaust pin 5; a boss 11 is provided on the bottom mold 1 corresponding to the window molding part of a wheel, a groove cavity 31 corresponding to the boss 11 is machined on the top mold 3, the profiles of the boss 11 and the groove cavity 31 do not contact with each other and have a clearance of 0.2-0.5 mm, casting burrs are easily formed if the clearance is too large, and the exhaust effect is influenced if the clearance is too small; a step hole is machined on the boss 11 of the bottom mold, and the lower exhaust pin 5 is installed in the hole and connected with a mold body by spot welding or by a bolt; a step hole is also drilled in the groove cavity 31 of the top mold, and the upper exhaust pin 4 is installed in the hole and connected with the mold body by spot welding or by a bolt; the ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a cast wheel mold cavity exhaust device, includes a bottom mold, a side mold, a top mold, an upper exhaust pin and a lower exhaust pin. A boss is provided on the bottom mold corresponding to the window molding part of a wheel, a groove cavity is provided on the top mold corresponding to the boss, a step hole is provided on the boss of the bottom mold, and the lower exhaust pin is installed in the step hole.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application claims priority to Chinese Patent Application No. 2017101632731, filed on Mar. 19, 2017, which is hereby incorporated by reference in its entirety.TECHNICAL FIELD[0002]The present application relates to the field of molds, and specifically to a cast wheel mold cavity exhaust device.BACKGROUND ART[0003]In the wheel casting process, the mold system is in the atmospheric environment, and if air in the mold cavity is not exhausted thoroughly in the molding process, the defects of oxide inclusions, air holes and the like easily occur in a casting, thus influencing the product quality. Besides, the defects reduce the density of a casting structure, and reduce the effective sectional area, so that the mechanical properties are seriously substandard, and the safety of a vehicle is greatly influenced. Thus, how to realize smooth exhaust of the mold cavity is quite important for the casting quality of a wheel, and positive and effe...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B22C9/06B22C9/28
CPCB22C9/28B22C9/067
Inventor WANG, KAIQINGWANG, GUIZHOU, PENGLI, CHANGHAIZHAO, YONGWANG
Owner CITIC DICASTAL