Exhaustion valve assembly in die-casting mold

A technology of die-casting molds and valve components, which is applied in the direction of casting moulds, lifting valves, valve devices, etc.

Inactive Publication Date: 2016-12-07
FONDAREX
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The problem of evacuating die casting molds involves in all cases preventing the molten casting mass from escaping into the environment

Method used

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  • Exhaustion valve assembly in die-casting mold
  • Exhaustion valve assembly in die-casting mold
  • Exhaustion valve assembly in die-casting mold

Examples

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Embodiment Construction

[0027] now refer to figure 1 , shows a section through a valve assembly 1 for evacuating a die casting mold. Since the basic principle of a valve assembly of this type is already known from EP 0 612 573 A1, the following only focuses in particular on the salient elements or components designed according to the invention.

[0028] The valve assembly 1 has a valve housing 2 comprising a housing front 2a and a housing rear 2b. The two housing parts 2a, 2b are connected together by fasteners (not shown) such as bolts. The valve housing 2 is provided with an evacuation duct leading from an inlet duct 3 at the bottom of the housing front 2a to an outlet duct 5 coming out of the housing front 2a. The inlet duct 3 is connected to the mold cavity of the die-casting mold to be evacuated, while the outlet duct 5 is usually connected to an exhaust. Arranged in the valve housing 2 is an evacuation valve 7 , by means of which the outlet line 5 can be closed off from the inlet line 3 . T...

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PUM

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Abstract

To provide an exhaustion valve assembly in a die-casting mold manufactured relatively inexpensively even while having abrasion resistance. The valve assembly 1 includes a valve housing 2 divided into two parts. Exhaust ducts 3 and 5 closable by an exhaust valve 7 are provided in the front housing part 2a, an actuator 14 for operating the valve piston 8 of the exhaust valve 7 is housed in the housing 2, and the actuator 14 includes a force converter 15 operated by a casting material, and a force transmission member 20 for transmitting the closing motion of the force converter 15 to the valve piston 8 of the exhaust valve 7, and further includes a laminate spring assembly 23 for returning the actuator 14 and / or discharging a riser.

Description

technical field [0001] The present invention relates to a die casting mold evacuation valve assembly as set forth in claim 1 . Background technique [0002] In order to allow reliable prevention of air or air pockets in the finished casting, the mold or its cavity is automatically evacuated during casting. For this purpose, not only the air present in the casting mass and the mold cavity must be able to escape, but it must also be ensured that the gases present in the casting mass body can also escape. [0003] The problem of evacuating a die-casting mold concerns in all cases preventing the molten casting mass from escaping into the environment. To prevent this, a valve assembly is used which is provided with an evacuation duct connected to the mold cavity of the die-casting mold, an evacuation valve arranged in the evacuation duct and an actuator for closing the evacuation valve. Known valve assemblies are designed for pilot control and are made of cast material. The la...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D17/22
CPCB22C9/067B22D17/145B22D17/20B22D45/005F16K1/32F16K27/02F16K31/1221
Inventor K.鲍姆加特纳
Owner FONDAREX
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