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Self-cleaning venting plug for core casting mold

A self-cleaning and exhaust plug technology, which is applied in manufacturing tools, casting molding equipment, casting molds, etc., can solve the problems of easy blockage of exhaust plugs, frequent cleaning of exhaust plugs, and low service life, so as to reduce cleaning frequency, Improved service life and strong applicability

Pending Publication Date: 2017-12-01
珠海肯赛科有色金属有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The defect of the above technical solution is that: during the process of sand shooting, the exhaust plug is easily blocked; the exhaust plug needs to be cleaned frequently, and the service life is low

Method used

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  • Self-cleaning venting plug for core casting mold
  • Self-cleaning venting plug for core casting mold
  • Self-cleaning venting plug for core casting mold

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Such as Figure 1-Figure 3 As shown, this embodiment provides a self-cleaning vent plug for casting a core mold. The self-cleaning vent plug includes an elastic filter screen 1, a cylinder body 2, a limiting member 3, and the two ends of the cylinder body are respectively It is the open end and the filter end; the elastic filter 1 is installed on the filter end of the cylinder 2; the elastic filter 1 is provided with a number of exhaust holes 101; the ratio of the thickness to the diameter of the elastic filter 1 is 0.02.

[0040] The material of the elastic filter screen 1 is 304 stainless steel. Such as figure 1 As shown, several vent holes 101 are round holes with the same size, which are uniformly distributed on the elastic filter screen 1. The total area of ​​the vent holes 101 accounts for 25% of the upper surface area of ​​the elastic filter screen 1.

[0041] The limiting member 3 is used to limit the deformation of the elastic filter screen 1, and is located inside...

Embodiment 2

[0046] The difference between this embodiment and the first embodiment is that the ratio of the thickness to the diameter of the elastic filter screen is 0.03; the gap between the limiting member and the elastic filter screen is 0.6 mm. The number of limit posts is 3, and the 3 limit posts are arranged radially.

Embodiment 3

[0048] The difference between this embodiment and the first embodiment is that: the number of limit posts is four, and the four limit posts are arranged in a net shape. The ratio of the thickness to the diameter of the elastic filter is 0.04; the gap between the limit piece and the elastic filter is 0.8 mm.

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PUM

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Abstract

The invention provides a self-cleaning venting plug for a core casting mold. The self-cleaning venting plug comprises an elastic filter screen and a cylinder. The two ends of the cylinder are an open end and a filter screen end. The elastic filter screen is mounted at the filter screen end of the cylinder. The elastic filter screen is provided with a plurality of vent holes. The ratio of the thickness to the diameter of the elastic filter screen is 0.01-0.05. The venting plug can slightly deform under the typical sand shooting pressure to store stress. After the sand shooting pressure is eliminated, the venting plug releases the stress and recovers the shape. In the shape recovering process, sand grains and resin particles on the surface of the elastic filter screen are shaken off; accordingly, the sand grains and resin in the vent holes are removed, and the self-cleaning effect is achieved. The venting plug can clean the sand grains and the resin blocked in a venting system by itself. The cleaning frequency of the venting plug is reduced, and the service life of the venting plug is prolonged.

Description

Technical field [0001] The invention relates to a self-cleaning vent plug used for casting core-making molds. Background technique [0002] Casting refers to a processing method in which solid metal is melted into a liquid state and poured into a mold of a specific shape, and then solidified and formed. Castable metals include: copper, iron, aluminum, tin, lead, etc. The general casting materials are raw sand, earthen, water glass, resin and other auxiliary materials. Sand core is a common mold. [0003] During the production of sand cores, due to the complexity of the internal shape and structure of the castings, the structure of the sand cores for the production of castings is also complicated. When the sand cores are produced, the air in the complex structure is difficult to discharge, and there are many difficult to fill and difficult to release. Places, resulting in unqualified sand core production. At present, in order to improve the exhaust effect at the complex structure...

Claims

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Application Information

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IPC IPC(8): B22C9/10
CPCB22C9/10
Inventor 陈思园
Owner 珠海肯赛科有色金属有限公司