Mold glue feeding device for workpiece production

Abstract

The invention relates to the technical field of injection molding product production, and discloses a mold glue feeding device for workpiece production. The mold glue feeding device comprises a charging barrel, a screw rod is arranged in an inner cavity of the charging barrel, and the periphery of the screw rod is movably sleeved with a non-return ring, the top end of the charging barrel is connected with a nozzle, and the front end of the screw rod is provided with an end head. A central electromagnet and a side electromagnet are respectively arranged in the charging barrel and the end head,and the non-return ring is positioned on the rear side of the end head. The screw rod and a screw head which are connected together traditionally are separated, the screw head and a push rod are driven to move horizontally and periodically through acting force generated by a magnetic field, and the functions of conveying and injecting feed liquid are achieved. In the process, the screw rod rotatescontinuously to achieve plasticizing and conveying of materials. Compared with a glue feeding device in the prior art, the device can provide longer plasticizing time for the materials, so that the feed liquid consumption is large, the materials which are difficult to plasticize can meet the plasticizing requirement, and the efficiency of the glue feeding device is integrally improved.

Description

technical field [0001] The invention relates to the technical field of injection molding product production, in particular to a mold glue feeding device for workpiece production. Background technique [0002] The injection molding process is that thermoplastics or thermosetting plastics are heated, sheared, compressed, mixed and conveyed in the heating barrel to make them uniformly plasticized. The plasticized molten material is blocked by the nozzle and accumulates in the barrel. The front end then enters the closed low-temperature mold cavity through the nozzle and the gating system of the mold by means of the thrust exerted by the screw or plunger. The injection system of the injection molding machine is to plasticize and melt the plastic, and inject the melt into the cavity under high pressure and high speed. The injection system is mainly composed of a plasticizing device (screw or plunger, barrel, nozzle, heater), hopper, metering device, screw drive device, injection...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies in the use of the existing glue feeding device proposed in the background technology, the present invention provides a mold glue feeding device for workpiece production, which has the advantages of prolonging the plasticizing time and improving the glue feeding efficiency, and solves the above background The problem raised in the technology that the screw cannot plasticize the material during pressure holding

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