Discharging hopper of dual-cylinder direct vertical pressing type injection molding machine

Abstract

The invention discloses a discharging hopper of a dual-cylinder direct vertical pressing type injection molding machine. The discharging hopper comprises a feeding hopper, a discharging pressing plate, a first hydraulic cylinder, a second hydraulic cylinder, a connecting plate, a connecting block, a columnar shell and a conical shell. The upper end of the conical shell is fixedly connected with the lower end of the columnar shell, the discharging pressing plate is horizontally arranged in the columnar shell, the middle of the upper surface of the discharging pressing plate is fixedly connected with the lower end of the connecting block, and the upper end of the connecting block is rotatably connected with the middle end of the lower surface of the connecting plate. The two ends of the upper surface of the connecting plate are rotatably connected with a piston rod of the first hydraulic cylinder and a piston rod of the second hydraulic cylinder respectively, and a cylinder body of the first hydraulic cylinder and a cylinder body of the second hydraulic cylinder are vertically arranged above the columnar shell. The first hydraulic cylinder and the second hydraulic cylinder are adopted for acting on the discharging pressing plate at the same time, the discharging stability of an injection molding machine can be enhanced, and the situation of uneven discharging caused by vibration of the hydraulic cylinders can be reduced.

Description

technical field [0001] The invention relates to a plastic production machine, in particular to a lower hopper of a double-bar direct-pressure injection molding machine. Background technique [0002] Injection molding machine, also known as injection molding machine or injection machine, is the main molding equipment for making thermoplastics or thermosetting plastics into various shapes of plastic products using plastic molding molds. The injection system is one of the most important components of the injection molding machine. Generally, there are three main forms: plunger type, screw type, and screw pre-molded plunger injection type. Under certain pressure and speed, the molten plastic is injected into the cavity of the mold, and after the injection, the molten material injected into the cavity is kept fixed. Traditional plunger-type injection molding machines are all horizontal-bar type, that is, only one hydraulic cylinder is used to work on the blanking platen. The inj...

AI Technical Summary

Problems solved by technology

The traditional plunger-type injection molding machines are all horizontal-bar type, that is, only one hydraulic cylinder is used to do work on the blanking platen. The injection stability of the horizontal-bar type injection molding machine is poor. If the hydraulic cylinder vibrates, it will not be able to achieve good production results.

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