Automatic turning mold frame

Abstract

The invention relates to a sole mold control technology of an injection molding machine, in particular to an automatic overturning mold base of a shoe sole injection molding machine. It is characterized in that there are clamping mechanisms on both sides of the upper and lower mold bases, and the clamping mechanism includes a locking plate, a clamping oil cylinder and a positioning head fixed on the upper mold base, the plate body of the locking plate and the clamping oil cylinder The cylinder body is hinged, the lower end of the locking plate is hinged with the piston rod of the clamping cylinder, and the upper end is plugged with the positioning head for movable positioning. Its purpose is to design a safe and reliable automatic flip mold base for mold locking. Compared with the prior art, it has the advantages of reliable mold clamping, stable positioning, high safety factor, simple structure, low cost, large load, and can be used on machines with high mold clamping pressure requirements.

Description

technical field [0001] The invention relates to a sole mold control technology of an extruder, in particular to an automatic overturning mold base of a sole extruder. Background technique [0002] Existing extruders or injection molding machines for plastic soles have two structural forms: one is a disc machine, and the other is a four-Green column vertical station machine. The following process: mold clamping - pressurization - pressure stabilization - material injection - pressure maintenance - mold opening, the above processes are all realized by hydraulic cylinders on the mold mounting frame, usually the hydraulic pressure The process of boosting, stabilizing and maintaining the pressure of the oil cylinder is called the mold locking process. For the disc machine, although the mold locking process is easy to realize and the machine structure is relatively simple, due to the influence of its structure type, considering the reasons of safety and reliability, the tonnage o...

AI Technical Summary

Problems solved by technology

For the disc machine, although its mold locking process is easy to realize and the machine structure is relatively simple, due to the influence of its structure type, considering the reasons of safety and reliability, the tonnage of its hydraulic cylinder cannot be designed to be larger. It is impossible to form a large clamping pressure. Therefore, the disc machine can only produce limited varieties and low-grade products so far; Large clamping pressure, but with the continuous improvement of the grade of footwear, the requirements for clamping pressure are also increasing, making the four-Green pillars become thicker and thicker, and the upper and lower modules are also thicker and thicker. For safety reasons, Some have also added a safety system for clamping and locking the mold, and the upper template is always fixed and locked. The machine structure is becoming more and more complicated, and the manufacturing cost is constantly increasing.

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