Water-cooling injection mold

Abstract

The invention relates to the field of auto parts and specifically discloses a water-cooling injection mold. The water-cooling injection mold comprises a rack, a cooling pipe, a water tank, a mold bodyand a heat radiation mechanism. A water pump is fixed on the water tank. The mold body and the water tank are both fixed on the rack. The water tank is communicated with the cooling pipe. The heat radiation mechanism comprises a cylinder, a piston and a sink of the cylinder. The cylinder is fixed on the rack, the side wall of the cylinder is provided with a water outlet, and total water yield ofthe water outlet is greater than total water inflow of the cooling pipe. An air inlet check valve is fixed at the lower part of the cylinder. A spring is disposed inside the cylinder. The piston and the bottom of the cylinder are both fixed with a magnet. The piston is positioned above the air inlet check valve, and the piston is provided with an air outlet assembly. The air outlet assembly comprises an air outlet pipe and an air outlet check valve. The air outlet check valve is communicated with the cylinder. An air outlet end of the air outlet check valve is communicated with the cylinder. An air outlet end of the air outlet check valve is communicated with the air outlet pipe, and the upper part of the air outlet end is bent to be arch-shaped. The sink is communicated with a water inletend of the water pump. By the scheme, the quantity of water inlet pipes in a workshop which are communicated with the outside world can be reduced.

Description

technical field [0001] The invention relates to the field of auto parts, in particular to an injection mold for auto parts. Background technique [0002] Injection molding is a method of producing shapes for industrial workpieces, usually using rubber injection molding or plastic injection molding. Using injection molding machines to make thermoplastic or thermosetting materials into plastic products of various shapes using plastic molding molds, it is mainly used to manufacture various workpieces with complex structures or small volumes. The current mold generally includes a movable mold and a fixed mold that can be separated from each other. In the cavity, and then the mold is cooled, and the molten raw material is cooled and gradually solidified, and finally forms the same workpiece as the mold. [0003] The current injection molds are generally water-cooled, and a pipe for cold water to pass is arranged around the mold. The temperature of the raw material is lowered a...

AI Technical Summary

Problems solved by technology

The hot water discharged from the pipeline needs to be sent to another storage device for cooling, so the production workshop needs to lay water inlet and outlet pipes connected to each machine tool. There are many pipelines in the workshop, which will increase the space occupied by the workshop. Risk of Pipeline Failure

Secondly, the pipe is generally cylindrical, and the contact area between the cylindrical pipe and the mold is small, and the heat on the mold is transferred to the water in the pipe at a slower speed, which will also reduce the cooling rate

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