Suction-adjustable vacuum suction casting device mold base

Abstract

The invention relates to the technical field of vacuum suction casting, in particular to a suction-adjustable vacuum suction casting device mold base which comprises a device body. The device body comprises a base body, a discharging chamber is formed in the first end of the base body, an air passing cavity is formed in the discharging chamber, an air suction hole is formed in the second end of the base body, and the air suction hole communicates with the air passing cavity. By arranging an adjusting bottom plate and an adjusting mechanism, the adjusting bottom plate rotates to drive an adjusting wheel and a pushing hole to move, so that a linkage rod drive ssix adjusting angle blocks to move in sequence, and the suction force can be adjusted to adapt to different metal liquids only by rotating the adjusting bottom plate; and a mechanical pump does not need to be independently matched, the utilization rate of a suction casting system is increased, the production cost of enterprises is reduced, meanwhile, the device is easy to operate, high in controllability and high in adjusting precision during adjustment, and workers can use the device more conveniently.

Description

technical field [0001] The invention relates to the technical field of vacuum suction casting, in particular to a mold base of a vacuum suction casting device with adjustable suction. Background technique [0002] The vacuum sealing molding technology was formed in the 1970s, and then the vacuum suction casting process was born on this basis. This process has been widely used in the rapid casting of parts, improving the filling performance of metal castings and reducing the pores in the castings. , improve the comprehensive mechanical properties of castings and reduce material waste caused by oxidation. [0003] At present, when a single vacuum suction casting system is adapted to different smelting systems, it is difficult to ensure that the frequency conversion of the mechanical pump changes the suction, and different metals have different suction requirements due to their own fluidity during smelting and suction casting. When the mechanical pump is used for another kind ...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a vacuum suction casting device mold base with adjustable suction, so as to solve the problem that the single vacuum suction casting system proposed in the above background technology is difficult to ensure the frequency conversion of the mechanical pump to change the suction when the single vacuum suction casting system proposed in the background technology is adapted to different smelting systems. When smelting and suction casting, the suction requirements are also different due to its own fluidity. In this way, when a mechanical pump for suction casting of a single molten metal is used for suction casting of another molten metal, it is easy to cause the metal liquid to fill the shape. It is not stable enough and the castings are not evenly distributed, but for a single metal liquid, it is equipped with a suitable mechanical pump, especially for metal liquids that are not processed frequently. The problem of greatly increasing the production cost of the enterprise

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