Self-skinning device for plastic foam box

Abstract

The invention discloses a self-skinning device for a plastic foam box. The self-skinning device structurally comprises a machine body, a mixer, a conveying pipe and a die. The mixer is horizontally fixed to the top of the right end of the machine body; the die is located on the left side of the mixer; and the conveying pipe is installed between the die and the mixer. Because the stirring force applied to a material stacked on the right side in a foaming cavity is small, the material is not uniformly mixed with a foaming agent. The material in the right side of the foaming cavity is pushed forwards by a push plate of a pushing mechanism, the foaming degree of the material is increased because of uniform mixing of the material and the foaming agent, and the production quality of the plastic foam box can be improved. Because the material forming consolidation time is short, the material staying on the inner wall of the foaming cavity and the outer wall of the right end of the stirring rod is prone to solidification, a clearing plate clears away the material on the inner wall of the foaming cavity and the outer wall of the right end of the stirring rod when a clearing block moves along with the push plate, less material stays on the inner wall of the foaming cavity and the outer wall of the right end of the stirring rod, and forward conveying and injection moulding of the material are facilitated.

Description

technical field

[0001] The invention belongs to the field of foamed plastics, and more specifically relates to a self-skinning device for foamed plastics boxes. Background technique

[0002] Using injection molding machine to process and produce foam plastic box, feed polystyrene material into the mixer through the hopper, and feed foaming agent through the reagent tube, the motor drives the stirring rod to rotate, so that the material in the foaming cavity and the reagent are mixed and then discharged The feeding pipe is injected into the mold to make the foamed plastic box foamed; in the prior art, when the plastic foamed box is foamed and injected by an injection molding machine, the material becomes fluid after heating, and the fluid is pushed by the stirring rod in the foaming cavity It moves back and forth, and the stirring range of the stirring rod is limited, and the material accumulated on the right side of the foaming cavity is subjected to a small stirring force, ...

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