Injection molding machine

Abstract

The invention provides an injection molding machine. The injection molding machine comprises a base, a hydraulic mechanism shell is fixedly connected to the outer surface of the upper end of one sideof the base, an ejection mechanism shell is fixedly connected to the other side of the base, and a hydraulic cylinder is fixedly connected to one side of the hydraulic mechanism shell. According to the injection molding machine, plastic grains in a hopper can be stirred through a stirring device, so that the plastic grains are finer, air mixed in the plastic grains is scattered, the plastic grainsare automatically and uniformly discharged through a discharging device without blocking a discharging port, the plastic grains stirred in advance enter a charging barrel and then are quickly and uniformly melted, and thus the product quality is improved; by means of a double-cavity structure, two sets of products can be formed in an injection molding mode at a time when small products are produced, so that the production efficiency is doubled; and double cavities can be separated through a separation mechanism, so that product adhesion is avoided, and molten plastic in a mold is prevented from flowing back.

Description

technical field [0001] The invention relates to the field of injection molding machines, in particular to an 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 with plastic molding molds. It is divided into vertical, horizontal, and all-electric types. The injection molding function Heating the plastic and applying high pressure to the molten plastic to make it shoot out and fill the mold cavity. The injection molding machine usually consists of an injection system, a mold clamping system, a hydraulic transmission system, an electrical control system, a lubrication system, a heating and cooling system, and a safety monitoring system. ; [0003] The most common injection molding machines are horizontal and vertical. Compared with the vertical injection molding m...

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Problems solved by technology

[0003] The most common injection molding machines are horizontal and vertical. Compared with the vertical injection molding machine, the horizontal injection molding machine has a lower body, convenient feeding and unloading, and easy maintenance, so it is widely used, but it also has shortcomings. : 1. Horizontal injection molding machines take up more space. In a limited space environment, the number of horizontal injection molding machines that can be placed is about half of that of vertical injection molding machines, which means that the production efficiency of horizontal injection molding machines will be higher than that of vertical injection molding machines. Type injection molding machine is twice as low, and for products with simple structure and small volume, use horizontal injection molding machine to produce overkill, which wastes the productivity of injection molding machine; 2. Since the injection molding machine needs to heat the plastic rice to melt it, Therefore, a large amount of heat energy will be released, and a large amount of plastic rice with smaller particles will accumulate in the hopper, and it will be easily melted and bonded at the discharge port combined with the barrel, so that the discharge port will be blocked, thereby affecting the working efficiency of the injection molding machine; 3. . Since the plastic rice in the hopper is crushed and pushed by the screw in the barrel after it enters the barrel, the stirring and melting of the plastic rice enter the barrel almost at the same time. Since the plastic rice in the hopper has not undergone any treatment, it is rough The plastic rice will entrain air into the barrel, and because the mixing time is too short, the melting state of the plastic rice is different from the particle size, which will affect the quality of injection molding products

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