EVA material foaming device

Abstract

This utility model provides an EVA material foaming device, including a base, an extrusion cylinder installed on the upper surface of the base, an inner cylinder installed inside the extrusion cylinder, multiple resistance heating coils evenly installed in the space formed by the inner cylinder and the extrusion cylinder, water-proof rings provided on both sides of the resistance heating coils, the multiple water-proof rings dividing the space formed by the inner cylinder and the extrusion cylinder into multiple cooling chambers, an insulation container installed on the upper surface of the base, a hydraulic cylinder installed on the side of the container cover away from the insulation container, a piston slidably installed inside the insulation container, the piston being connected to the movable end of the hydraulic cylinder, a connecting piece provided on the lower side of the extrusion cylinder for connecting the cooling chambers and the insulation container, and a venting piece provided on the upper side of the extrusion cylinder for maintaining stable pressure in the cooling chambers. This utility model has the following beneficial effects: realizing the recovery of residual heat in the extrusion cylinder and reducing energy consumption.

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