Driving device for extrusion molding of plastic product

Abstract

The invention discloses a driving device for extrusion molding of a plastic product, comprising a charging barrel and a nozzle, wherein the nozzle is fixedly mounted on one side of the outer surface of the charging barrel, a feeding device is fixedly mounted on one side, away from of the nozzle , of the upper end of the outer surface of the charging barrel, a heater is fixedly mounted on the outersurface of the charging barrel, the outer surface of the charging barrel is covered with a heat preserving cover on the exterior of the heater, two sets of threaded rods are arranged in a horizontaldirection inside the charging barrel, and one end, close to the nozzle, of the outer surface of each threaded rod is fixedly connected with a connecting plate. The double screws are arranged to improve the conveying efficiency and the stirring efficiency of molten plastic, and a detachable structure is arranged between a tapered pressing head and a connecting rod to facilitate replacement; a hingeis driven by a motor to make the threaded rods reciprocate in a horizontal hollow tube, the structure is simpler and more convenient, and the cost is lower than that by using an oil cylinder; the heat preserving cover coats the heater to reduce heat loss and shorten plastic melting time.

Description

technical field [0001] The invention relates to the technical field of plastic products, in particular to a driving device for extrusion molding of plastic products. Background technique [0002] Injection molding machine is also known as injection molding machine or injection machine. It is the main molding equipment for making thermoplastics or thermosetting plastics into various shapes of plastic products using plastic molding molds. Divided into vertical, horizontal, all-electric. The injection molding machine heats the plastic, applies high pressure to the molten plastic, and makes it shoot out to fill the mold cavity. The injection device is one of the most important components of the injection molding machine. Most of the equipment driving the injection device uses an oil cylinder, but it still has the following disadvantages in actual use: [0003] 1. The structure of the injection device driven by the oil cylinder is complicated, the maintenance is difficult, and...

AI Technical Summary

Problems solved by technology

[0003] 1. The structure of the injection device driven by the oil cylinder is complicated, the maintenance is difficult, and the cost is high;

[0004] 2. For the piston, it is easy to wear and tear due to its high use intensity, and it is not easy to replace;

[0005] 3. The efficiency of single-screw conveying molten plastic is limited, and the stirring is uneven

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