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Core box exhaust structure

A core box and exhaust plug technology, applied in casting and molding equipment and other directions, can solve problems such as easy blockage of exhaust gaps, and achieve the effects of improving production efficiency, reducing replacement frequency and stable core quality.

Pending Publication Date: 2019-04-16
SUZHOU MINGZHI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide an exhaust structure for the core box, to solve the problem that the exhaust gap is easy to be blocked, and to prolong the service life of the exhaust plug

Method used

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  • Core box exhaust structure
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  • Core box exhaust structure

Examples

Experimental program
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Embodiment 1

[0025] Embodiment one: see figure 2 As shown, an exhaust structure for a core box has an exhaust pipe 2 fixedly connected to the top core board 8, the end of the exhaust pipe 2 is provided with an exhaust plug, and the exhaust plug is divided into Body structure, the first part 5 of the exhaust plug is fixedly connected to the top of the exhaust pipe 2, and the second part 1 of the exhaust plug is fixed on the core box 6, such as image 3 As shown, the adjacent edges of the two parts of the vent plug are meander lines with multiple bends, and the vent gap 7 is formed between the meander lines of the two parts. Such as figure 2 , surrounding the exhaust pipe 2 is provided with a guide block 3 fixed relative to the core box, the bottom of the exhaust pipe is provided with a limit nut 11, and a return spring 4 is provided between the guide block 3 and the limit nut 11; The two ends are respectively connected with the upper spring washer 12 threaded with the guide block 3 and ...

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Abstract

The invention discloses a core box exhaust structure which is characterized by comprising an exhaust pipe fixedly connected with a top core plate, wherein an exhaust plug is arranged at the end part of the exhaust pipe and is of a split structure; the first part of the exhaust plug is fixedly connected with the top end of the exhaust pipe; the second part of the exhaust plug is fixed on a core box; an exhaust gap is formed between the two parts of the exhaust plug; and when the exhaust tube is ejected out by the top core plate, the two parts of the exhaust plug are staggered to form a clearingpassage. The core box exhaust structure can easily clean sundries in the exhaust gap, is particularly suitable for the deep cavity part of the cold core box and ensures that the exhaust gap is not blocked, so that on the one hand, the sand core quality is more stable, on the other hand, the replacement frequency of the exhaust plug is greatly reduced, and the production efficiency is improved.

Description

technical field [0001] The invention relates to a core box structure for core making in the field of metal casting, in particular to an exhaust structure for the core box. Background technique [0002] In the field of metal casting, cold box core making is a common sand core manufacturing method. In order to fully solidify the shot sand and the sand core quickly, the cold core box generally arranges vent plugs in the upper / lower (left / right) core boxes during the design process. For example, the Chinese utility model patent CN202105982U discloses an improved lower core box for the rain core box of cast train wheels, which mainly consists of rain gates uniformly distributed on three circumferences with different diameters, an inner ring exhaust plug, an outer The center of the three circles is the same, the center of the lower core box is the center of the circle, and the center angle between the radius of the center of the inner ring exhaust plug and the radius of the cente...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C7/06
CPCB22C7/065
Inventor 杨林龙
Owner SUZHOU MINGZHI TECH