PVC pipe production line equipment functions are as follows:
1, the raw material mixture: is pvc stabilizers, plasticizers, antioxidants and other accessories, to scale, technology has added to the high-speed mixer, the materials and mechanical self-friction heating the material to the set process temperature, and then the cold mixing machine the material down to 40-50 degrees; so that you can put into a hopper of the extruder.
2, the extruder section: PVC pipe production extruders partially filled with dosing device, so the amount of extrusion and feeding quantity can be matched to ensure stable extrusion products. Because of the characteristics of the tapered screw, feed zone with a larger diameter, the material and the shear rate of heat transfer area is relatively large, in favor of plastics materials, small metering section of the screw diameter, reducing heat transfer area and the melt shear rate, the melt can be extruded at lower temperatures. When the machine barrel screw is rotated to push the nose after plasticized PVC mix, so as to achieve compaction, melt-kneading homogenization; and venting, dehydration purposes. Charging device and screw drive with frequency control, can achieve synchronous speed.
3, extrusion die part: compacted, melt kneading homogenized PVC, follow-up material through the screw into the die, extrusion die is built off the pipe molded parts.
4, stereotypes vacuum stereotypes tank for pipes, cooling, vacuum stereotypes for stereotypes and cooling water tank fitted with a vacuum system and water system, stainless steel box, circulating water spray cooling, vacuum forming around the tank is equipped with mobile devices and so, manual height adjustment device.
5, traction machine for continuous, automatically cooled hardened pipes lead from the head office out of frequency control.
6, cutting machines: the request by the stroke length control switch, the automatic cut, and delay turning planes, the implementation of water production, cutting machine with permanent switch signal is given instruction to complete the entire process of cutting, during cutting and pipe run to keep pace, the cutting process is completed by the electric and pneumatic drive, the cutting machine is equipped with vacuum devices, cutting debris generated in a timely manner sucked out and recycled.
7, stacker stacker action by the cylinder is achieved by pneumatic control, stacker set up to have a stop, when the cut-off saw cutting PVC pipe, PVC pipe continued delivery, after the delay, the cylinder into the work to achieve turn expected action, to discharge purposes. After unloading automatically reset after a few seconds delay, waiting for the next cycle.
