The plastic pipe production line is composed of control system, extruder, die head, shaping cooling system, tractor, cutting device and turning frame. Each pipe production line has two extruders. One of the main extruders uses powerful conveying bushings and high-efficiency screws, and the other smaller extruder is used to extrude the marking line. If the production of multi-layer co-extruded pipes requires additional extruders to achieve multi-machine co-extrusion.
The plastic pipe extruder adopts high-efficiency screw, slotted barrel, and strong water jacket cooling, which greatly improves the conveying capacity and ensures high-efficiency extrusion; high-torque vertical structure gear box; DC or AC drive motor. The basket-type composite die head suitable for processing has the characteristics of convenient adjustment and uniform discharge, which not only ensures the stability of high-efficiency extrusion, but also realizes the minimum stress and the highest pipe quality brought by low melt temperature. Adopting high-efficiency double-cavity vacuum sizing technology and spray cooling water tank, the sizing sleeve adopts a unique slotting process and water ring cooling to ensure the forming accuracy of the pipe, improve the yield of the pipe, and meet the needs of high-speed production. The multi-track tractor is adopted, and the traction force is even and stable. Each track is driven by an independent AC servo motor, and the drive technology controlled by a digital controller realizes accurate speed adjustment to achieve a high degree of synchronization. The cutting machine adopts high-speed and precise design, the cutting section is flat, and is equipped with a powerful chip suction device. The cutting machine takes the fixed-length work switch signal as a command to complete the whole cutting process, and keeps synchronization with the pipe operation during the cutting process. The turning action of the turning frame is realized by the air cylinder through the air circuit control. The turning frame is equipped with a limit device. After the cutting saw cuts the pipe, the pipe continues to be transported. After a delay, the cylinder enters the work to realize the turning action. The purpose of unloading. After unloading, it will automatically reset after a few seconds delay, and wait for the next cycle.
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