Adding mechanism of injection molding machine

Abstract

The invention discloses an adding mechanism of an injection molding machine. The adding mechanism is connected with an injection device, and comprises a shell, an adding hopper, a feeing needle and aflow guiding plate, wherein one side of the shell is provided with an adding port, and the other side, opposite to the adding port, of the shell is provided with a slide groove; the adding hopper is arranged on the shell, and is communicated with the adding port, and a heating layer is arranged on the outer wall of the adding hopper; the feeding needle is detachably arranged in the shell, and is matched with the adding port; one end of the feeding needle is fixed in the slide groove, and the other end of the feeding needle penetrates the slide groove to be inserted into the injection device tobe used for conveying plastic into the injection device; the flow guiding plate is provided with a through hole, is movably embedded in the shell, and is located between the feeding needle and the adding port; and the adding port is movably matched with the through hole. The adding mechanism of the injection molding machine can achieve that before plastic particles enter the injection device, impurities are filtered out and separated, it is prevented that a spraying nozzle is blocked, and smoothness of injection molding is guaranteed; and a mold can also be protected, and therefore the product quality can be guaranteed, and the adding mechanism is convenient to replace and clean.

Description

technical field [0001] The invention relates to the technical field of injection molding machine equipment, in particular to a feeding mechanism of 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 using plastic molding molds. It is divided into vertical, horizontal, and all-electric types. The injection molding machine heats the plastic, applies high pressure to the molten plastic, and makes it shoot out to fill the mold cavity. [0003] Injection molding is a cyclic process, and each cycle mainly includes: quantitative feeding—melt plasticization—pressure injection—mold filling and cooling—mold opening and pick-up. After taking out the plastic parts, the mold is closed again, and the next cycle is carried out. [0004] The injection molding process of a ...

AI Technical Summary

Problems solved by technology

The existing technology generally adds plastic particles directly into the injection device, and then melts them in the injection device. Since the plastic particles inevitably contain some impurities, there will be some hard particles that are difficult to dissolve, which will cause blockage of the injection device. The nozzle in the middle of the injection mold will cause poor injection molding. What's more, injecting into the mold cavity will damage the mold, which will eventually lead to the quality of the produced product being unqualified, affecting the quality of the product, and further affecting the reputation of the company.

[0006] Therefore, there is currently a need for an injection molding machine on the market, which heats and melts the plastic particles in the feeding mechanism, filters and removes impurities in the plastic particles, and prevents impurities from entering the injection device and affecting the quality of injection molding.

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