Injection molding machine nozzle capable of realizing cleaning on basis of gravity change

Abstract

The invention relates to the technical field of injection molding, and discloses an injection molding machine nozzle capable of realizing cleaning on the basis of gravity change. The nozzle comprisesmain nozzle bodies; a melting channel is arranged on the outer sides of the main nozzle bodies; heating layers are arranged on the outer side of the melting channel; one end, far away from the corresponding driving spring, of each connecting spring is movably connected with a driving rod; one end, far away from the corresponding driving rod, of each communicating spring is movably connected with acommunicating block; and one end, far away from the corresponding communicating spring, of each communicating block is movably connected with a communicating switch. According to the injection molding machine nozzle capable of realizing cleaning on the basis of gravity change, the communicating switches are pressed, then switch springs connected with the communicating switches are compressed, andthen the two groups of communicating switches abut against each other. The device is started, heating rods begin to heat the heating layers on the outer sides of the heating rods, thus the heating layers heat molten plastic flowing through the melting channel, and the cold charge condition is avoided; and the melting channel is heated, so that the condition of residual melt caused by cooling is avoided.

Description

technical field [0001] The invention relates to the technical field of injection molding, in particular to a nozzle of an injection molding machine that realizes cleaning based on changes in gravity. Background technique [0002] Injection molding machines are widely used in the production of plastics, rubber and other products. Plastic injection molding machine machinery has become one of the most widely used models in the plastic processing industry. With the rapid development of industrial technology, the production and application of molds are becoming more and more extensive, among which injection molding machines are used the most. Injection molding machine is a kind of plastic products made of thermoplastics or thermosetting plastics using plastic molding molds. High pressure is applied to the molten plastics to make them inject and fill the mold cavity. [0003] The melting of the material of the injection molding machine is realized through the melt barrel assembl...

AI Technical Summary

Problems solved by technology

However, the existing external spring nozzles cannot add heating coils due to the exposed springs of the springs, and it is easy to produce cold material; especially for nozzles with larger diameters or longer nozzles, this situation is more obvious

At the same time, the existing spring nozzle still has the problem of poor cleaning effect of the molten flow channel, the residual melt will pollute the next injection, and poor adaptability

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