What are the applications of PVC hose production line and what is the specific workflow?

(1) Material mixing: PVC stabilizer, plasticizer, antioxidant and other accessories are added to the high-speed mixer in proportion and process, the material is heated to the set process temperature by self-friction between material and machinery, and then the material is reduced to 40-50 degrees by cold mixer, so that it can be added to the hopper of the extruder.
(2) The extrusion die head: PVC, which is homogenized by compaction, melting and mixing, has follow-up materials pushed to the die head by screw. The extrusion die head is the key component of pipe forming.
(3) Extruder part: The machine is equipped with a quantitative feeding device, so that the amount of extrusion and feeding can match to ensure stable extrusion products. Because of the characteristics of conical screw, the feeding section has larger diameter, larger heat transfer area and shearing speed, which is beneficial to the plasticization of materials, smaller diameter of metering section screw, less heat transfer area and shearing speed of melt, so that the melt can be extruded at lower temperature. When the screw rotates in the barrel, the PVC mixture is plasticized and pushed to the head, so as to achieve compaction, melting, mixing and homogenization, and to achieve the purpose of exhaust and dehydration, the feeding device and the screw drive device adopt frequency conversion speed regulation, which can realize synchronous speed regulation.
(4) Vacuum shaping tank is used for pipe shaping and cooling, vacuum shaping tank is equipped with vacuum system and water circulation system for shaping and cooling, stainless steel tank, circulating water spraying cooling, vacuum shaping tank is equipped with front and rear moving device and left and right and low adjusting manual device.
(5) The tractor is used to continuously and automatically draw the cooled and hardened pipe from the head of the machine and adjust the speed by frequency conversion.
(6) The turning-over action of the turning-over rack is controlled by the cylinder through the air passage. The turning-over rack is equipped with a limit device. After cutting and cutting the pipe, the pipe continues to be transported. After the delay, the cylinder enters the work to realize the turning-over action and achieve the purpose of unloading. After unloading, it will automatically reset after several seconds, waiting for the next cycle.