A plastic molding device

Abstract

The invention relates to the field of plastic foam, in particular to a plastic forming device. The plastic forming device comprises a machine frame, a liquid feeding water pump, a liquid discharging water pump, a motor, a hydraulic jack, an upper mold and a lower mold; the lower mold is provided with a feeding inlet, the side wall of the lower mold is internally provided with a heating cavity, andboth the liquid feeding water pump and the liquid discharging water pump communicate with the heating cavity; the upper mold is internally provided with a cutting cavity, a cutting piston is arrangedin the cutting cavity, and a cutter is fixed to the cutting piston; the upper mold is internally provided with a groove and a rotary piston, and a push rod of the hydraulic jack is rotationally connected with the upper mold; a piston rod is fixed to the rotary piston, and the motor can drive the piston rod to rotate; and the upper mold is provided with a control channel and a liquid feeding block, the liquid feeding block is provided with a liquid feeding channel, and a spring is arranged in the control channel; and the lower mold is provided with a convex block, and the cutting cavity communicates with a rodless cavity of the groove. Through the plastic forming device, plastic foam products higher in strength can be produced.

Description

technical field [0001] The invention relates to the field of plastic foam, in particular to the field of plastic foam molding. Background technique [0002] Plastic foam is a kind of polymer material formed by a large number of gas micropores dispersed in solid plastic. It has the characteristics of light weight, heat insulation, sound absorption, shock absorption, corrosion resistance, etc., and is easy to form and has good water resistance. Price It is also very cheap, so it is widely used in packaging, heat preservation, waterproof, heat insulation, shock absorption and other fields. It is one of the most widely used plastics in the world today. [0003] The preparation process of plastic foam generally includes: ① introducing gas into liquid or molten plastic to generate micropores; ② increasing the micropores to a certain volume; ③ fixing the micropore structure by physical or chemical methods to obtain plastic foam. Plastic foam products include finished products made...

AI Technical Summary

Problems solved by technology

Manufacturing plastic foam products requires a plastic foam molding machine. During the production process of a traditional molding machine, the temperature of the plastic foam particles drops rapidly, and the plastic foam is formed, so it is difficult to form a tighter plastic foam product

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