Production device of HDPE pipe

Abstract

The invention discloses a production device of an HDPE pipe. The production device of the HDPE pipe comprises an extrusion box, a motor and a feeding box, wherein an installation plate is fixedly connected with the outer wall of one side of the extrusion box, a shell of the motor is fixedly connected with the installation plate through bolts, a main shaft is rotatably connected with the center position of the box wall of the side, close to the motor, of the extrusion box, one end of the main shaft is coaxially welded to an output shaft of the motor, and the end, located in the extrusion box, of the main shaft is coaxially welded to an extrusion screw. The production device of the HDPE pipe has the advantages that in a polyethylene particle melting process, piezoelectric ceramic plates in the feeding box are impacted at different frequencies according to change of the number of raw materials, continuous current is generated when the number is large to enable electrorheological fluid to expand, spur racks are pushed to move downwards to drive gears to rotate, thus inclination angles of material conveying plates are changed, the moving time of the polyethylene particles (raw materials) on the material conveying plates is prolonged, enough melting time is guaranteed, and the number of the polyethylene particles can be automatically adjusted, so that manual control is not needed.

Description

technical field [0001] The invention relates to the technical field of pipe production, in particular to a preparation device for HDPE pipes. Background technique [0002] HDPE is a highly crystalline, non-polar thermoplastic resin. Its main component is high-density polyethylene. HDPE pipes are replacement products for traditional steel pipes and polyvinyl chloride drinking water pipes. The appearance of the original HDPE is milky white. The thin section is translucent to a certain extent. HDPE pipe not only has good economy, but also has a series of advantages such as stable and reliable interface, material impact resistance, crack resistance, aging resistance and corrosion resistance. [0003] The preparation process of HDPE pipe is mainly to melt the raw material and then extrude to obtain the finished product. Due to the different particle size of the polyethylene pellets of the HDPE pipe raw material, it is easy to appear that the large particles are not completely mel...

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Problems solved by technology

[0003] The preparation process of HDPE pipe is mainly to melt the raw material and then extrude to obtain the finished product. Due to the different particle size of the polyethylene pellets of the HDPE pipe raw material, it is easy to appear that the large particles are not completely melted during melting, which is easy to cause extrusion. There are problems with the quality of the pipes produced, and prolonging the melting time will not only increase the power loss and increase the cost, but also the small particles will be oxidized and the product will turn yellow if the heating time is too long; at the same time, it is often necessary to melt the polyethylene pellets before production Drying, for this purpose, we propose a preparation device for HDPE pipes

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