Introduction to the seven functions of the equipme

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Introduction to the seven functions of PVC pipe and pipe fitting production line equipment

the functions of PVC pipe production line equipment are as follows:

(1) raw material mixing: PVC stabilizer, plasticizer, antioxidant and other auxiliary materials are added into the high-speed mixer in proportion and process successively, and the materials are heated to the set process temperature through the self friction between the materials and machinery, and then reduced to degrees by the cold mixer; In this way, it can be added to the hopper of the extruder

(2) extruder part: This machine is equipped with a quantitative feeding device to match the extrusion amount with the feeding amount to ensure the stable extrusion of products. 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 diameter of the screw in the metering section is small, which reduces the heat transfer area and the shear speed of the 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 machine 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 pipes. The vacuum shaping water tank is equipped with a vacuum system and a water circulation system for shaping and cooling, a stainless steel box, and circulating water spray cooling. The vacuum shaping water tank is equipped with a front and rear moving device and a left and right, high-low-profile manual device

(5) the traction machine is used to continuously and automatically lead the pipes that have been cold and truly plug and play but become hard, which interfere with or even destroy the electronic universal experimental machine, out of the machine head, and frequency conversion speed regulation

(6) cutting machine: after being controlled by the travel switch according to the required length, it will automatically cut and delay the rack turnover to implement flow production. The cutting machine takes the fixed length switch signal as the command to complete the whole process of cutting, which will be synchronized with the pipe operation in the cutting process. The cutting process is driven by electric and pneumatic. The cutting machine is equipped with a dust suction device to suck out and recycle the debris generated by cutting in time

(7). The turnover action of the turnover frame 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 time delay, the air cylinder enters the work to realize the turnover action and achieve the purpose of unloading. After unloading, it will reset automatically after a delay of several seconds, waiting for the next cycle

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note: the reprinted content is indicated with the source. The reprint is for the purpose of transmitting more information, and does not mean to agree with its view or confirm the authenticity of its content when the experimental load exceeds 2% to 5% of the maximum load of each stage dial or when the experiment reaches the working limit position

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