Investment casting mold core

A technology of investment casting and core, which is applied to casting equipment, molds, cores, etc., can solve problems such as the effect of product surface smoothness, and achieve the effect of reducing redundant parts

Pending Publication Date: 2021-12-17
丁晨雨
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to make up for the deficiencies of the existing technology and solve the problem that the solidification of the molten metal in the exhaust groove affects the smoothness of the product surface and requires later cutting and grinding, the invention provides an investment casting mold core

Method used

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  • Investment casting mold core
  • Investment casting mold core
  • Investment casting mold core

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0037] As a specific embodiment of the present invention, a No. 2 slot 14 is vertically arranged inside the core body 1 near the empty pipe 13, and a number of No. 3 slots 15 are arranged inside the core body 1. The size of the No. 1 slot 15 is smaller than the No. 2 slot 14 , and the No. 3 slot 15 communicates the No. 2 slot 14 with the No. 1 slot 12 .

[0038] During work, No. 2 slot 14 is vertically arranged inside the core body 1 and close to the empty pipe 13. The No. 2 slot 14 is evenly arranged around the center of the core body 1, and each empty pipe 13 corresponds to a No. 2 slot 14. No. groove 14 is equipped with an oily release agent inside; core body 1 is provided with several No. 3 grooves 15, the size of No. 3 groove 15 is smaller than No. 2 groove 14, and No. 3 groove 15 connects No. 2 groove 14 and No. 12 connected; that is, the oil-based release agent in the second groove 14 flows along the third groove 15 to the first groove 12 under the rotation of the empty...

specific Embodiment approach

[0039] As a specific embodiment of the present invention, the No. 3 groove 15 is arranged obliquely relative to the horizontal direction.

[0040] During work, the No. 3 groove 15 is inclined relative to the horizontal direction, and this setting makes the oily release agent in the No. 2 groove 14 more likely to flow into the No. 3 groove 15. Compared with the horizontal setting of the No. The oily release agent first flows into the No. 3 groove 15, and then cooperates with the rotation of the empty pipe 13 to smear more oily release agent on the side wall outer surface of the empty pipe 13; thus the normal performance of the device function is guaranteed.

[0041] As a specific embodiment of the present invention, several baffles 141 are uniformly arranged inside the No. 2 groove 14 , and the middle part of the baffles 141 is bent upwards and has a through hole 142 .

[0042] During work, the inside of No. 2 slot 14 is evenly provided with several baffle plates 141, and the b...

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PUM

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Abstract

The invention belongs to the technical field of investment casting, and particularly relates to an investment casting mold core. The investment casting mold core comprises a core body and a rotating mechanism. The core body is of a columnar structure, and an exhaust groove is vertically formed in the side wall of the core body. A first groove is formed in the core body, and a hollow pipe is embedded in the first groove. The rotating mechanism is composed of a first rod and a second rod. The exhaust effect is achieved through the exhaust groove formed in the core body, after the exhaust work is finished, the first rod is rotated, the first rod drives the second rod to rotate through a gear, then a hollow pipe rotates, a notch does not coincide with the exhaust groove, metal in the hollow pipe is gradually separated, the redundant part on the surface of a casting is reduced, and convenience is provided for later cutting and polishing.

Description

technical field [0001] The invention belongs to the technical field of investment casting, in particular to an investment casting mold core. Background technique [0002] Investment casting is a casting process with less cutting or no cutting. Since the castings produced by the investment casting process are higher in dimensional accuracy and surface quality than castings cast by other casting methods, in addition, the investment casting method It can complete the production of some castings with high complexity and difficult processing, so it is deeply loved by enterprises. [0003] The machine base is an important part of auto parts. The main structure of the existing machine base products for new energy vehicles is a cylindrical body, which needs to be formed by investment casting during production. Air entrapment is easy to occur under the action, and the gas accumulates on the inner wall of the product, which cannot be discharged smoothly and in time, which is easy to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C9/10B22C9/04
CPCB22C9/103B22C9/101B22C9/106B22C9/04
Inventor 丁晨雨李正权
Owner 丁晨雨
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