Mold rack core-pulling mechanism of connecting bent pipe of automotive thermostat

Abstract

A mold rack core-pulling mechanism of a connecting bent pipe of an automotive thermostat comprises a movable mold plate of a mold. A movable mold insert is arranged on the movable mold plate. The connecting bent pipe formed in an injecting mold mode is arranged in the movable mold insert. A guide pillar sliding block is arranged on the left side or right side of the movable mold plate. An inclined guide hole is formed in the guide pillar sliding block and matched with an inclined guide rod arranged under a fixed mold part of the mold. The front end of the guide pillar sliding block is connected with an inner end core of the connecting bent pipe, and the inner end core is matched with an end opening in the inner side of the connecting bent pipe. An arc rotary rail is arranged on the front side or rear side of the movable mold plate and provided with an arc rotary sliding block. The front end of the arc rotary sliding block is connected with an outer end core of the connecting bent pipe, and the outer end core is matched with an end opening in the outer side of the connecting bent pipe. An arc rack is installed on the outer wall of the arc rotary sliding block. An oil cylinder is transversely arranged on the edge of the movable mold plate, an oil cylinder rod of the oil cylinder is connected with a linear rack, and the linear rack is engaged with the arc rack.

Description

technical field [0001] The invention relates to a rack core-pulling mechanism for an automobile thermostat connected to an elbow mold, belonging to the field of plastic moulds. Background technique [0002] Use plastic molds to produce plastic products, such as the connecting elbow on the car thermostat. According to the product shape and function design, the connecting elbow generally turns at 45°. The position of the core oil cylinder on the injection molding machine is distributed downward and backward. Due to the long length of the oil cylinder itself and the stroke required for core pulling, the cylinder body of the oil cylinder needs to be installed outside the mold body for a long distance. As a result, the peripheral volume of the entire mold is large, and it needs to be processed in a large injection molding machine, and the equipment investment is very large. Contents of the invention [0003] The purpose of the present invention is to overcome the shortcomings ...

AI Technical Summary

Problems solved by technology

[0002] Use plastic molds to produce plastic products, such as the connecting elbow on the car thermostat. According to the product shape and function design, the connecting elbow generally turns at 45°. The position of the core oil cylinder on the injection molding machine is distributed downward and backward. Due to the long length of the oil cylinder itself and the stroke required for core pulling, the cylinder body of the oil cylinder needs to be installed outside the mold body for a long distance. As a result, the peripheral volume of the entire mold is large, and it needs to be processed in a large injection molding machine, which requires a large investment in equipment

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