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What are the functions of PVC pipe production line?

ClickUpdate:2021-09-01 15:49:47 Author:keb.rfkjok.com

Functions of PVC pipe production line:
(1) . raw material mixing: PVC stabilizer, plasticizer, antioxidant and other auxiliary materials are successively added into the high-speed mixer according to proportion and process. The materials are heated to the set process temperature through material and mechanical self friction, and then the materials are reduced to 40-50 ° C through the cold mixer; In this way, it can be added to the hopper of the extruder.
(2) Extruder: the machine is equipped with quantitative feeding device to match the extrusion amount with the feeding amount to ensure the stable extrusion of products. Due to the characteristics of conical screw, the feeding section has a large diameter, which is conducive to the plasticization of materials. The screw diameter in the metering section is small, which reduces the heat transfer area and the shear speed of melt, so that the melt can be extruded at a 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 achieve the purpose of exhaust and dehydration. The feeding device and screw drive device adopt frequency conversion speed regulation, which can realize synchronous speed regulation.
(3) Extrusion die part: PVC after compaction, melting, mixing and homogenization, and subsequent materials are pushed to the die through the screw. The extrusion die is a relevant part for pipe forming.
(4) The vacuum shaping water tank is used for shaping and cooling of pipes. The vacuum shaping water tank is equipped with vacuum system and water circulation system for shaping and cooling, stainless steel box, circulating water spray cooling, and the vacuum shaping water tank is equipped with front and rear moving devices and manual devices for left, right and high-low adjustment.
(5) The tractor is used to continuously and automatically lead the cooled and hardened pipes out of the machine head for variable frequency speed regulation.
(6) Cutting machine: after being controlled by the travel switch according to the required length, it will automatically cut and delay the frame turnover to implement flow production. The cutting machine takes the fixed length switch signal as the command to complete the whole cutting process and keep pace with the pipe operation in the cutting process. The cutting process is driven by electric and pneumatic. The cutting machine is equipped with dust suction device, Suck out the cutting debris in time and recycle it.
(7) The turnover action of the turnover rack is realized by the air cylinder through the air circuit control. The turnover is erected with a limit device. When the cutting saw cuts off the pipe, the pipe continues to be transported. After the delay, the air cylinder enters the work to realize the turnover action and achieve the purpose of unloading. After unloading, it will automatically reset after a delay of several seconds and wait for the next cycle.