PVC pipe production line equipment function
(1): PVC is the mixing of raw materials, stabilizers, plasticizers, antioxidants and other accessories, according to the proportion, process successively into high speed mixing machine, the material and mechanical friction material from heating to the set temperature, then the cold mixer material to 40-50; it can be added to the extrusion hopper machine.
(2) extruder part: This machine is equipped with a quantitative feeding device, so that the amount of extrusion can be matched with the feeding amount to ensure the stable extrusion of the product. Due to the characteristics of conical twin-screw, feeding section with larger diameter, the heat transfer area and shear velocity of the material is relatively large, is conducive to the material plasticization metering section of screw diameter, reduce the heat transfer area and to melt the shear rate, which can melt extrusion at low temperature. When the screw is rotated in the cylinder, the PVC mixture is plasticized to the head, so as to achieve the purpose of compaction, melting and mixing homogenization, and the purpose of exhaust and dehydration is realized. The feeding device and the screw drive device adopt the frequency conversion speed regulation to realize the synchronous speed regulation.
(3) extrusion die part: after compaction, melting, mixing homogenization of the PVC, there are follow-up materials through the screw to the die head, extrusion die is the formation of the pipe parts.
(4), vacuum shaping water tank for the tube forming, cooling, water tank is provided with a vacuum forming and cooling system for setting vacuum and water circulation system, stainless steel cabinet, circulating water cooling, water tank is provided with a vacuum setting before and after the mobile device and the height adjusting device, manual.
(5) the traction machine is used to continuously and automatically cool the hardened tube from the nose.
(6): cutting machine comprises a travel switch according to the requirements of length control, automatic cutting, and delay over frame, implementation of water production, cutting machine with permanent switch signal for the instruction, complete the whole cutting process, and keep running in the pipe cutting process synchronization, cutting process by electric and pneumatic driven. The cutting machine is provided with a dust suction device, the cutting chips produced by timely suction and recovery.
(7), double rack material turning action is realized by the cylinder through the pneumatic control, reversing erecting a limit device, when the cutting saw cutting tube, pipe to transport, by the time delay after work into the cylinder to achieve unloading action, achieve unloading purpose. After unloading, after a few seconds to automatically reset, waiting for the next cycle.