Function Introduction of PVC Pipe Extrusion Line

1. The tractor of the PVC pipe extrusion line

The tractor of the PVC pipe extrusion line is used to continuously and automatically draw the cooled and hardened pipe from the head of the PVC pipe extrusion line, and the speed is adjusted by frequency conversion.

2. Extrusion die head part of PVC pipe production line

Extrusion die head part of PVC pipe production line: the PVC that is compacted, melted, mixed and homogenized, and subsequent materials are pushed to the die head by the screw. The extrusion die head is the key part of the pipe forming.

3. The vacuum shaping water tank of the PVC pipe extrusion production line

The vacuum shaping water tank of the PVC pipe extrusion production line is used for shaping and cooling the pipe. The vacuum shaping water tank is equipped with a vacuum system for shaping and cooling and a water circulation system. The stainless steel box body, circulating water spray cooling, and the vacuum shaping water tank is equipped with front and back. Moving device and manual device for adjusting left and right and height.

4. The turning of the turning frame of the PVC pipe production line

The turning of the turning frame of the PVC pipe production line is realized by the pneumatic control of the cylinder. The turning frame is equipped with a limit device. When the cutting saw cuts the pipe, the pipe continues to be transported. After a delay, the cylinder enters the work to achieve Turning the material to achieve the purpose of unloading. After unloading, it will automatically reset after a few seconds delay and wait for the next cycle.

5. Raw material mixing of PVC pipe extrusion line

It is to add PVC stabilizers, plasticizers, antioxidants and other auxiliary materials into the high-speed mixer according to the proportion and process. The materials are heated to the set process temperature by the self-friction of the materials and the machine, and then the materials are reduced by the cold mixer. To 40-50°C; in this way, it can be added to the hopper of the PVC pipe extrusion line.

6. Cutting machine for PVC pipe extrusion line

After being controlled by the stroke switch according to the required length, the automatic cutting is carried out, and the frame turning is delayed, and the flow production is implemented. The cutting machine uses the fixed-length switch signal as a command to complete the entire cutting process. During the cutting process, it is synchronized with the pipe operation. The cutting process Driven by electric and pneumatic, the cutting machine is equipped with a dust suction device to suck out the debris generated by cutting in time and recover it.

7. The extruder part of the PVC pipe extrusion line

The PVC pipe extrusion line is equipped with a quantitative feeding device, so that the extrusion volume can be matched with the feeding volume, and the stable extrusion of the product is ensured. Due to the characteristics of the conical screw, the feeding section has a larger diameter, and the heat transfer area and shear speed of the material are relatively large, which is conducive to the plasticization of the material. The small diameter of the screw in the metering section reduces the heat transfer area and the melt. The shear speed enables the melt to be extruded at a lower temperature.

When the screw rotates in the barrel, the PVC mixture is plasticized and pushed to the machine head 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 adjustment Speed, can realize synchronous speed regulation.