What is the forming equipment of the pipe production line
The forming of the pipe production line is completed by the mold, the sizing sleeve and the cooling device. The mold for producing plastic pipes is composed of a shunt bracket, a mold body, a mandrel, and a forming die. Due to the different shearing force when the material flows through the support, the shearing force near the support is greater than that at the center. In the support area, the flow of the material has a certain speed difference. If the compression ratio of the mold is too small or the straight section is too short , there will be stent traces on the inner wall of the tube, and longitudinal cracks will be left in severe cases.
If the polyolefin type large-diameter pipe uses a bracket-type mold, it will form the longitudinal ridges on the inner wall of the pipe due to the current stent. Therefore, micropores are generally used in the production of large-diameter high-density polyethylene pipes, gas pipes and some important new material polyolefin pipes. In order to ensure the correct geometric shape, dimensional accuracy and roughness of the tube, the tube blank with a relatively high temperature must be sizing and cooling after leaving the die, and the sizing device plays this role. There are generally two sizing methods for pipes, outer sizing and inner sizing.
PE series plastic pipe production line is mainly used for the production of agricultural water supply and drainage, building water supply and drainage, cable laying and so on. The unit consists of a vacuum setting table, a tractor, a cutting machine, a turning frame, etc. The single-screw extruder and traction machine use AC frequency conversion speed regulation device, and the vacuum pump and traction motor are all high-quality products. The tractor has two-claw, three-claw, four-claw, six-claw, eight-claw, ten-claw, twelve-claw and other traction methods. Chipless cutting, saw blade cutting or planetary cutting can be selected, the unit has reliable performance and high production efficiency. Equipped with a special device, the inner wall spiral tube is produced, and the inner wall hollow tube and core layer foam tube unit can replace the extruder, which can produce PP, PE, ABS, PPR, PEX, silicon core tube and other material pipes. The planetary cutting machine adopts automatic computer numerical control, which has the advantages of convenient operation and reliable performance, reaching the international level.
