A molding device for preparing automobile interior parts by micro-foaming injection molding process

Abstract

The invention discloses a molding device for preparing automobile interior parts by using a micro-foaming injection molding process. A molding device that is glued into a plate shape. A thermosetting box is installed outside the discharge end of the molding device. The thermosetting box has a frame structure and a number of infrared lamps are arranged in the top of the thermosetting box. Stamping device, a cooling box is arranged outside the tail end of the injection molding table. In the present invention, through the molding device arranged at the discharge end of the glue injection gun, the plastic fluid produced by rolling the micro-foamed glue by the upper and lower pressure belts is flat and continuously extended, and then cut off into a flat block by the cutting device. The stamping device of the utility model can press the cut flat plastic to form the interior parts of the car at one time, and the movable die base and the static die base can be replaced and used according to the shape and structure of the interior parts of the car, which is beneficial to stamping and forming and has practical value.

Description

technical field [0001] The invention relates to the technical field of production of new environmental protection materials, in particular to a molding device for preparing interior parts of automobiles by adopting a micro-foaming injection molding process. Background technique [0002] The micro-foaming molding process mainly relies on the expansion of the pores to fill the product, and the molding of the product is completed under a relatively low and average pressure. Microfoam molding can be divided into three stages. First, the supercritical fluid (CO 2 or N 2 ) is dissolved into the hot melt glue in the glue gun to form a single-phase solution, which is maintained under a certain constant pressure; then, the single-phase solution is injected into the mold cavity with lower temperature and pressure through the glue gun, A microfoamed product is formed. Among them, there are many plastic trims in automobiles. Considering the cost of materials and strength, the micro-f...

AI Technical Summary

Problems solved by technology

Among them, there are many plastic trims in the car. Considering the cost and strength of the materials used, the micro-foaming injection molding process is gradually used for processing. However, the plastic trims in the car are more irregular in shape and structure due to their own aesthetics. Many, it is generally formed by resin stamping, the existing micro-foamed plastic needs to be transferred to the stamping place for stamping after injection molding, and the micro-foamed plastic is easily torn into white marks at the bend after cooling, which is not conducive to improving the yield of the product

Images