Energy-saving and environment-friendly plastic machining extruder

Abstract

The invention discloses an energy-saving and environment-friendly plastic machining extruder which comprises an extrusion pipe. The extrusion pipe comprises two arc pipes. The two arc pipes are arranged oppositely up and down and are cooperation components. The two ends of the extrusion pipe penetrate through the two sides of a heat insulation box correspondingly. The heat insulation box comprisesan upper box body and a lower box body. Through the arrangement of a rectangular frame capable of ascending and descending, a blade on the rectangular frame can scrape off raw materials on the innerwall of a feeding box, and the raw material extrusion rate is increased; through the design of filter screens, raw materials which do not reach the molten degree are prevented from entering the extrusion pipe, and the situation that inferior-quality products obtained through insufficient melting and extrusion happen to extrusion objects is avoided; through the design of the heat insulation box anda heat exchange pipe, redundant heat of cast aluminum heaters is conducted into the feeding box, raw materials in the feeding box are subjected to melting treatment in advance, the extrusion effect and extrusion efficiency are improved, and the energy saving and environmental protection effects are good; and the technical problems that in the prior art, the energy saving and environmental protection effects of plastic extruders are not good, and inferior-quality products are prone to happening in extrusion objects are solved.

Description

technical field [0001] The invention relates to the technical field of plastic processing, in particular to an energy-saving and environment-friendly plastic processing extruder. Background technique [0002] Most plastic polymers have the advantages of light weight, stable chemical properties, no rust, good impact resistance, good transparency and wear resistance, so the rapid development of the polymer processing industry, and as one of the main processing equipment for polymers The advanced twin-screw extruder has been developed rapidly, and has been widely used for its excellent processing performance; the screw extruder relies on the pressure and shear force generated by the rotation of the screw, which can fully plasticize the material and Mix evenly and form through a die; plastic extruders can be basically classified into twin-screw extruders, single-screw extruders, and rare multi-screw extruders and screwless extruders. [0003] The patent document (202010170259.6...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide an energy-saving and environment-friendly plastic processing extruder, which solves the following technical problems: (1) by opening the two sealing covers on the top of the feeding box, the raw materials are fed from the two inlets on the top of the feeding box Putting in, put two sealing covers on the two inlets, the raw materials fall into the conveying box through the four filters on the rectangular frame, and enter the extrusion pipe through the conveying port, the first motor drives the extruding screw, extruding The output screw extrudes the raw material from the extrusion pipe. During the extrusion process, the cast aluminum heater heats the extrusion pipe in sections. The waste heat generated by the cast aluminum heater is discharged into the feed box through the heat exchange tube. The raw material that does not pass through the filter is melted by heat and falls into the extrusion tube. At the same time, the second motor drives the screw to rotate forward and reverse. The screw and the screw connecting block drive the rectangular frame to lift through the connecting arm. The molten raw material retained on the inner wall of the feeding box is scraped into the extrusion pipe. Through the above structure, the plastic processing extruder is set with a liftable rectangular frame, and the blade on the rectangular frame can scrape off the raw material on the inner wall of the feeding box. Improve the extrusion rate of raw materials. Through the design of the filter screen, prevent the raw materials that have not reached the melting level from entering the extrusion tube, and avoid the defective products that are extruded due to insufficient melting of the extrudate. Through the heat insulation box and heat exchange tube Designed to conduct excess heat from the cast aluminum heater into the feed box, melt the raw materials in the feed box in advance, improve the extrusion effect and extrusion efficiency, and have good energy-saving and environmental protection effects, solving the problem of plastic in the prior art The energy saving and environmental protection effect of the extruder is not good, and the technical problems of defective products are prone to appear in the extruded product; (2) The cutting knife is driven by the third motor to rotate, and the cutting knife cuts the extruded product extruded from the extrusion pipe The plastic masterbatch is obtained, the circulating cooling water tank cooperates with the first connecting pipe and the second connecting pipe to circulate the cooling water, and at the same time, the fifth motor cooperates with two gears that are meshed and connected to drive the cooling water pipe to rotate, and the cooling water pipe pair descends in the discharge box The plastic masterbatch is stirred and cooled. Through the above structure, the plastic processing extruder can stir and cool the plastic masterbatch obtained after extrusion through the rotating cooling water pipe, and the cooling efficiency is high; (3) Drive the gear through the fourth motor Rotate, the gear and the rack match, the two translation plates on the bottom plate slide in reverse, and then drive the conveying box and the discharge box to move in the opposite direction, the two ends of the extrusion tube are exposed, and the upper positioning bar and the lower positioning bar are removed. The bolts between the upper box and the lower box are separated, and the extruded tube is exposed outside, and then the bolts between the upper snap ring and the lower snap ring are removed, and the two arc tubes are separated, and the arc tube can be aligned. Through the above structure, the heat insulation box and extrusion pipe of the plastic processing extruder can be disassembled, which is convenient for cleaning the inner wall of the extrusion pipe, and avoids the inner cavity blockage caused by the long-term non-cleaning of the extrusion pipe. , to solve the technical problem that the extruder used for plastic processing is not easy to clean in the prior art

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