Low-pressure die casting machine with liftable and changeable heat preserving furnace

Abstract

A low-pressure die casting machine with a liftable and changeable heat preserving furnace consists of a low-pressure die casting machine body (1), a transfer car and a smelting furnace (17), wherein a lifting mechanism and the heat preserving furnace (2) are arranged in the low-pressure die casting machine body (1); and the transfer car is parallel to the low-pressure die casting machine body (1) and the smelting furnace and is used for conveying an empty solid aluminum liquid heat preserving furnace from the smelting furnace to the die casting machine body. The low-pressure die casting machine is characterized in that a lifting table (3) is arranged under a table board of the low-pressure die casting machine (1); a variable-frequency reducing motor (4) and a machine table heat preserving furnace guide track (8) are arranged in the middle of the lifting table (3); and a worm gear (6) transfers a force in the height direction to push the lifting table (3) and the heat preserving furnace (2) to lift and fall together. By the low-pressure die casting machine with the liftable and changeable heat preserving furnace, automated operation is achieved in a whole process, the purity of pouring aluminum liquid in the low-pressure die casting machine is ensured, moreover, the service life of the heat preserving furnace is greatly improved, the working efficiency is greatly improved, and the labor intensity of workers is reduced.

Description

technical field [0001] The invention relates to the technical field of low-pressure casting machines for aluminum alloy wheels, in particular to a low-pressure casting machine capable of lifting and replacing a holding furnace. Background technique [0002] The aluminum liquid electric heating and holding furnace used in conjunction with the low-pressure casting machine is made of integrally welded iron plates. The furnace is divided into an insulation layer and a working layer to store two castables. These two castables can keep the aluminum liquid in heat A certain temperature is maintained in the furnace to ensure the purity of the molten aluminum. When working, inject compressed air into the furnace body, so that the aluminum liquid is squeezed and enters the riser pipe, and then enters the mold cavity of the low-pressure machine through the riser pipe, and is finally shaped. Since the heat in the furnace will be lost when compressed air is added to squeeze the molten a...

AI Technical Summary

Problems solved by technology

Disadvantages: When the aluminum liquid in the holding furnace is used up, new aluminum liquid needs to be added into it, and the holding furnace itself will have aluminum slag after long-term use. If the poured aluminum liquid has no effective static place, new aluminum slag will be brought into the furnace body

On the one hand, it will lead to impure aluminum liquid, and the poured product will have defects, which will affect the service life of the product. Secondly, too much aluminum slag will accumulate and adhere to the surrounding walls of the furnace, which will reduce the capacity of the holding furnace chamber and even affect the service life of the product. Insulation effect

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