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Novel knockout head of casting mold

A technology for casting molds and blowing heads, which is applied to casting molding equipment, parts of molding machines, molding machines, etc. It can solve the problems of affecting the normal use of molds, manual cleaning omissions, and increased production costs, so as to improve blowing efficiency and effect, avoiding a large amount of lifting, and improving efficiency

Inactive Publication Date: 2016-03-30
WUXI XINMAO FORGING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, many castings are covered with iron mold sand, and the coated sand is generally made of phenolic resin, which will collapse at high temperature and fall off the mold automatically by the weight of the sand, but for the sand in the sand shooting hole of the iron mold, Relying on its own weight, it cannot completely fall off, so manual cleaning is required later, so the labor intensity is relatively high, and the production cost will also increase accordingly, and manual cleaning will inevitably cause omissions
At present, the mechanical cleaning device that has appeared uses the top core to be inserted into the sand shooting hole to drop the sand from the mold. This method requires the top core to be in contact with the inner wall of the sand shooting hole. The pressure will cause some damage to the inner surface of the sand shooting hole, thus affecting the normal use of the mold

Method used

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  • Novel knockout head of casting mold
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Examples

Experimental program
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Effect test

Embodiment 1

[0017] Such as figure 1 As shown, the shakeout head of the new casting mold of this embodiment includes a fixed seat 1, a lifting cylinder 2 is installed on the upper surface of the fixed seat 1, and a plurality of top cores 3 are installed on the lower surface of the fixed seat 1. The positions of the sand holes correspond to each other. The fixed seat 1 is a hollow structure with an inner cavity 100. An air intake pipe 4 communicating with the inner cavity 100 is installed on its upper surface. An electromagnetic regulating valve 11 is installed on the air intake pipe 4. The electromagnetic regulating valve 11 The controller 12 is connected with the timing controller 13, the timing controller 13 is provided with a timing start module, the timing start module sends a signal to the controller 12 according to the set time, and the controller 12 controls the opening and closing of the electromagnetic regulating valve 11 according to the signal received The top core 3 is rotation...

Embodiment 2

[0020] Such as figure 1 , figure 2 As shown, the improvement of the shakeout head of the new casting mold in this embodiment compared with the first embodiment is that the inner end of the jet hole 31 has a flared mouth 32 in the shape of a trumpet. The trumpet shape of the flared mouth 32 facilitates the airflow entering the jet hole 31 and reduces the injection resistance.

Embodiment 3

[0022] Such as figure 1 As shown, compared with the first embodiment, the improvement of the shakeout head of the new casting mold in this embodiment is that the air intake pipe 4 is a bendable and telescopic bellows structure. The intake pipe 4 is connected with the trachea, which can be properly bent and stretched to facilitate the installation of the trachea.

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PUM

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Abstract

The invention relates to a novel knockout head of a casting mold. The novel knockout head comprises a fixing base. A lifting air cylinder is arranged on the upper surface of the fixing base. A plurality of ejector cores are arranged on the lower surface of the fixing base and correspond to sand shooting holes in position. The fixing base is of a hollow structure with an inner cavity, an air inlet pipe communicated with the inner cavity of the fixing base is arranged on the upper surface of the fixing base, and the air inlet pipe is provided with an electromagnetic adjusting valve. The ejector cores are connected with the fixing base through installing heads. Each ejector core is of a hollow pipe structure with an air conducting channel, and a plurality of vertically-arranged jet flow holes communicated with the air conducting channel of each ejector core are formed in the side wall of each ejector core. The jet flow holes are obliquely arranged downwards relative to the center axes of the ejector cores. The installing heads are rotationally connected with the fixing base through bearings, and provided with air ventilation cavities communicated with the inner cavity and the air conducting channels. The installing heads are provided with driven gears, and the adjacent installing heads are synchronously connected through engagement of the driven gears. The driven gear at the outermost end of one side is engaged with a drive gear, and the drive gear is connected with a drive motor through a belt.

Description

technical field [0001] The invention relates to the technical field of casting, in particular to the cleaning technology of casting moulds. Background technique [0002] At present, many castings are covered with iron mold sand, and the coated sand is generally made of phenolic resin, which will collapse at high temperature and fall off the mold automatically by the weight of the sand, but for the sand in the sand shooting hole of the iron mold, Relying on its own weight, it cannot completely fall off, so manual cleaning is required later, so the labor intensity is relatively high, and the production cost will also increase accordingly, and manual cleaning will inevitably cause omissions. At present, the mechanical cleaning device that has appeared uses the top core to be inserted into the sand shooting hole to drop the sand from the mold. This method requires the top core to be in contact with the inner wall of the sand shooting hole. The pressure will cause some damage to...

Claims

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Application Information

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IPC IPC(8): B22C15/24B22C19/00
Inventor 徐清峰
Owner WUXI XINMAO FORGING CO LTD
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