Core-shooting device, core-shooting method and core-shooting controlled system

A technology for controlling valves and vacuum systems, which is applied in the direction of manufacturing tools, casting molding equipment, metal processing equipment, etc., and can solve problems such as core sand cannot reach, sand core compactness is not enough, and injection is not solid, so as to ensure the compactness Effect

Active Publication Date: 2009-06-10
CRRC QIQIHAR ROLLING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a core shooting device to solve the problem of false shooting in the prior art because the core sand cannot reach the sharp corner, especially to solve the problem of large sand cores or complex structures. The problem of insufficient compactness of the sand core

Method used

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  • Core-shooting device, core-shooting method and core-shooting controlled system
  • Core-shooting device, core-shooting method and core-shooting controlled system
  • Core-shooting device, core-shooting method and core-shooting controlled system

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Embodiment Construction

[0053] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0054] One of the core ideas of the embodiment of the present invention is that by adding a vacuum system to the original core shooter, the gas is continuously pumped out through the vacuum system, and there is no air pressure accumulation in any part of the core box, so that the air pressure remains constant, thus ensuring The tightness of each part of the sand core.

[0055] refer to figure 1 , which shows a schematic structural view of Embodiment 1 of a core shooting device of the present invention, specifically including the following components:

[0056] a core box 111 with ventilation means 110;

[0057] A sealing plate 112 covering the outer surface of the core box 111, a cavity 113 is provided between the sealing plate 1...

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Abstract

The present invention relates to one kind of sand core device for injection molding. The sand core device includes one core box with ventilator, and sealing boards coating the outer surface of the core box with cavity formed between the sealing boards and the core box. The ventilator is set on the sealing boards and communicated to the cavity, and one vacuum system is connected through pipeline to the deflating port to the cavity. The increased vacuum system pumps out air from the core box to maintain constant pressure inside the core box and ensure the compaction of the sand core. The present invention is especially suitable for relatively large sand core and sand core with complicated structure.

Description

technical field [0001] The invention relates to the field of industrial casting, in particular to a core shooting device and a core shooting method using the device. And a core shooting control system. Background technique [0002] The core shooting device is currently a more commonly used high-efficiency core-making equipment in the field of industrial casting. According to the shape and size of the core and the binder used in the core sand, the existing core shooting devices can usually be divided into: (1) Hot core box shooting Core machine: This core shooting device uses thermosetting resin as a binder to heat and harden the core in the core box; (2) Shell core machine: This core shooting device is used to manufacture thin shell cores. The surface of the sand grains is pre-covered with a resin film, which is hardened in a heated core box; (3) Cold box core shooter: This core shooter is a core machine with resin as a binder. The core is hardened by air blowing in the bo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22C5/12
Inventor 张瀛王志刚韩晋白文弟刘金海
Owner CRRC QIQIHAR ROLLING CO LTD
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