An intermediate injection gun of a three-color injection molding device

Abstract

The invention discloses an intermediate material injection gun of a three-color injection molding device, breaks through the structure type of the conventional intermediate material injections and is applied to the three-color injection molding device. In the actual operation process, when a locking device is unscrewed, an intermediate adapter coupling elbow and a conical head of the discharging end of the intermediate material injection gun rotate by means of a connector of a first elbow part, so that an intermediate material injecting nozzle is specifically aligned to an intermediate feeding hole of a forming die; the locking device can be screwed after aligning, so that a positioning convex bar and a strip-shaped groove are correspondingly locked together, thereby ensuring that the intermediate adapter coupling elbow is incapable of accidently rotating; after the locking device is screwed, the surface of the conical head and the inner conical surface are matched with each other to clamp an elastic sealing cushion layer and seal the elastic sealing cushion layer on a contact surface; outer annular convex lines and inner annular convex lines can clamp the elastic sealing cushion layer on two sides, so that the surfaces of the elastic sealing cushion layer are deformed and are mutually embedded into the outer annular convex lines and the inner annular convex lines; the sealing contact area is significantly increased; the sealing effect is relatively excellent.

Description

technical field [0001] The invention relates to the field of injection molding devices, in particular to an intermediate injection gun of a three-color injection molding device. Background technique [0002] More and more shoes are injection molded by injection molding device, and the structure of the injection molding device is known. For example, the Chinese invention patent CN 201410647897.7 discloses a fully automatic injection molding machine, including a mold station, an injection device and a main frame, which is characterized in that : The mold station includes a mold opening and closing cylinder, a connecting plate mechanism, a guide column, an upper plate, a middle plate and a lower plate, the upper plate and the lower plate are respectively fixed on the upper end and the lower end of the guide column, and the middle plate is slidably arranged on the guide column On the column, the cylinder barrel of the mold opening and closing cylinder is fixed on the upper plate...

AI Technical Summary

Problems solved by technology

This invention is widely used, but in actual use, it is similar in structure to other injection molding devices on the market, and cannot adapt to various types of molds with feed holes in different positions. Usually, it is necessary to replace the gun or even the entire injection molding machine. One machine, the adaptability is too single, the use is not flexible enough, and the practicability needs to be improved

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