Low-pressure casting machine

Abstract

The invention relates to a low-pressure casting machine. The casting machine is stable in movement and high in automatic degree. The casting machine comprises a rack with a work platform. Four guide columns are arranged on the work platform, an ejection template is fixedly connected with the upper portions of the guide columns, and a mold closing mechanism is arranged on the ejection template and comprises a mold closing oil cylinder fixed on the ejection template. Guide rods are in sliding connection onto the ejection template on the two sides of the mold closing oil cylinder respectively, a piston rod of the mold closing oil cylinder is vertically upward and is fixedly connected with the tops of the guide rods through a connection plate, the bottoms of the guide rods penetrate the ejection template movably and are fixedly connected with a movable template which is sleeved on the guide rods in a sliding mode, and a core pulling frame is fixed below the two sides of the movable template respectively. Vacuum negative-pressure liquid rising is achieved through a high-temperate vacuum pump, the core pulling frames and the movable template are integrated, and lifting is controlled through the mold closing oil cylinder, accordingly, the applicability to molds of different specifications is improved, and by the arrangement of a core collecting platform and a core collecting trolley, castings can be taken out rapidly, and the production efficiency is high.

Description

technical field [0001] The invention relates to a low-pressure casting machine and belongs to the technical field of low-pressure casting equipment. Background technique [0002] Low-pressure casting refers to a casting method in which molten metal fills the cavity under pressure to form a casting. Because the pressure used is low, it is called low-pressure casting. The castings of low-pressure casting have dense structure and good mechanical properties, so they are widely used in castings such as automobile cylinder blocks, cylinder heads and wheel hubs. [0003] The low-pressure casting machine in the prior art, due to certain limitations of the equipment, the motion stability between the moving parts is poor, which often leads to a decrease in the precision of the casting; at the same time, the traditional low-pressure casting machine has a low degree of automation. , the castings cannot be taken out quickly, and the adaptability to molds of different specifications is a...

AI Technical Summary

Problems solved by technology

[0003] The low-pressure casting machine in the prior art, due to certain limitations of the equipment, the motion stability between the moving parts is poor, which often leads to a decrease in the precision of the casting; at the same time, the traditional low-pressure casting machine has a low degree of automation. , the castings cannot be taken out quickly, and the adaptability to molds of different specifications is also poor, and the production efficiency is low

Images