Novel high-speed traction machine for PVC pipes

Abstract

The novel high-speed traction machine for the PVC pipes comprises a connecting frame, a first connecting disc and a second connecting disc are rotationally installed in the connecting frame, a motor is fixedly installed at one end of the connecting frame, a rotating column on one side of the first connecting disc penetrates out of the connecting frame, and a first transmission column is fixedly installed at the end of the rotating column; the rotating column on one side of the second connecting disc penetrates out of the push-pull mechanism, a first gear is fixedly installed at the end of the rotating column, and the outer surfaces of the first transmission column and the first gear are sleeved with a synchronizing mechanism in a meshed mode. Through the design of the synchronizing mechanism, the stress of the PVC pipe can be ensured to be uniform in the process of pulling the PVC pipe through the two groups of conveying belts which oppositely and synchronously rotate, the pipe can be prevented from being stretched or compressed due to non-uniform stress, and the pipe can be kept in a synchronous transmission state at any pulling speed; and the speed difference in the high-speed transmission process can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of PVC pipe production, in particular to a new high-speed traction machine for PVC pipes. Background Art

[0002] PVC pipes are made of polyvinyl chloride resin, stabilizers, lubricants, etc., and are extruded by hot pressing. They are the earliest plastic pipes to be developed and applied. PVC pipes have strong corrosion resistance, are easy to bond, are low in price, and have a hard texture. Plastic pipes are used for drainage, wastewater, chemicals, heating and cooling liquids, food, ultra-pure liquids, mud, gas, compressed air, and vacuum systems. PVC pipes are extruded and cooled on the production line. If there is no external tensile force on the extruded PVC pipe, it will easily cause bending and deformation. Therefore, it is necessary to set a corresponding traction machine at the output end of the PVC extruder. Through the traction of the traction machine, the PVC pipe is continuously output from the extruder and shaped.

[0003] For example, the patent with the authorization patent announcement number CN206884128U discloses a PVC pipe traction machine, including a workbench and a crawler transmission mechanism located on the workbench, the crawler transmission mechanism including an upper crawler transmission belt, a lower crawler transmission belt arranged parallel to the upper crawler transmission belt, and a driving motor group for driving the crawler transmission mechanism to rotate, a control rod for controlling the upper crawler transmission belt and the lower crawler transmission belt to approach or move away from each other is arranged on the upper surface of the workbench and located on one side of the crawler transmission mechanism, the upper crawler transmission belt and the lower crawler transmission belt are both connected with a sliding block displaced along the length direction of the control rod, the displacement speeds of the upper crawler transmission belt and the lower crawler transmission belt are equal, a locking piece for fixing the relative positions of the two is also arranged between the control rod and the sliding block, the driving motor group is started to drive the upper crawler transmission belt and the lower crawler transmission belt to pull the PVC pipe, because the axis of the PVC pipe is always at the same height, it is beneficial for the PVC pipe to remain straight during traction.

[0004] However, in the above-mentioned PVC pipe pulling machine, the PVC pipe is pulled by two sets of driving motors to drive the conveyor belts respectively. When the transmission speed is too fast, this traction method will produce a speed difference, resulting in the two sets of conveyor belts being out of sync. The speed asynchronism will cause uneven force on the PVC pipe, thereby causing deformation of the pipe and deviations in size and shape. Utility Model Content

[0005] The purpose of the utility model is to provide a new high-speed traction machine for PVC pipes to solve the problem proposed in the above background technology that the PVC pipes are pulled by two sets of driving motors to drive conveyor belts respectively, and this traction method will produce a speed difference when the transmission speed is too fast, resulting in the problem that the conveying speeds of the two sets of conveyor belts are not synchronized.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A novel high-speed traction machine for PVC pipes, comprising: a connecting frame, in which a first connecting disc and a second connecting disc are rotatably mounted, wherein the first connecting disc and the second connecting disc are both tapered, so that the conveyor belts fitted with the first connecting disc and the second connecting disc are in a U shape;

[0008] Among them, a motor is fixedly installed at one end of the connecting frame, and the output shaft of the motor passes through the connecting frame and is fixedly connected to one end of the first connecting disk, a rotating column on one side of the first connecting disk passes through the connecting frame and a first transmission column is fixedly installed on the end, a rotating column on one side of the second connecting disk passes through the push-pull mechanism and a first gear is fixedly installed on the end, a synchronization mechanism is fitted and meshed on the outer surfaces of the first transmission column and the first gear, the synchronization mechanism is slidably installed in a sliding groove, the sliding groove is opened at one end of the connecting frame, the push-pull mechanism is slidably installed in a guide groove, and the guide groove is opened on both sides of the connecting frame.

[0009] Preferably, the middle parts of the first connecting plate and the second connecting plate are both in the shape of a concave ring, so that the conveyor belt can collapse inward according to the diameter of the PVC pipe.

[0010] Preferably, the push-pull mechanism comprises a guide block, the guide block is slidably mounted in the guide groove, a group of second connecting plates is rotatably mounted between each two groups of the guide blocks, a rotating column of the second connecting plate is rotatably mounted in the guide block, and a limiting rod is fixedly mounted between each two groups of the lateral guide blocks, the limiting rod can drive the two groups of guide blocks to slide up and down synchronously in the guide groove;

[0011] Among them, a second gear is rotatably mounted on one end of one group of guide blocks, the second gear is meshed with the first gear, a second transmission column is fixedly mounted on one end of the second gear, and the second transmission column is sleeved by the synchronization mechanism.

[0012] Preferably, the upper surfaces of the two groups of limit rods are fixedly connected to the piston rods of the hydraulic rods, the hydraulic rods are fixedly mounted on both sides of the connecting frame, and the two groups of hydraulic rods are controlled by a group of hydraulic synchronization valves.

[0013] Preferably, the synchronization mechanism includes a sliding rod, which is fixedly installed in a sliding groove, and the sliding groove is opened at one end of the connecting frame. A sliding block is slidably installed on the outer surface of the sliding rod, and a third transmission column is rotatably installed on one end of the sliding block. The outer surface of the third transmission column is covered with a synchronous belt, and the other end of the synchronous belt is covered on the outer surfaces of the first transmission column and the second transmission column.

[0014] Preferably, a push spring is sleeved on the outer surface of the slide rod, and two ends of the push spring touch between the slide groove and the slide block.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. Through the design of the first connecting disk, the second connecting disk, the conveyor belt, the first transmission column, the first gear, the synchronous mechanism and the push-pull mechanism, when in use, the staff can start the push-pull mechanism to push or pull the second connecting disk according to the diameter of the PVC pipe, and can increase the distance from the first connecting disk until it reaches the diameter size that matches the PVC pipe, and then stop. In the process of the second connecting disk being pushed or pulled, the synchronous mechanism will be pulled together to slide in the sliding groove, so that the synchronous mechanism can always keep the sleeve and meshing on the outer surface of the first transmission column and the first gear, so that it can also operate the state of synchronous transmission connection while changing the spacing, and then the motor can be started to drive the first connecting disk to rotate The first gear is driven by the second gear and the second gear is driven by the second gear. The second gear is driven by the second gear and the second gear is driven by the second gear. The first gear drives the second connecting plate to rotate in the opposite direction, so that the first connecting plate and the second connecting plate drive conveyor belts to rotate synchronously relative to each other. The two sets of synchronously driven conveyor belts can ensure that the PVC pipe is evenly stressed during traction, and can avoid elongation or compression of the pipe due to uneven stress, ensuring the accuracy of the size and shape of the pipe. The two sets of conveyor belts are driven synchronously by a set of motors at the same time for traction and transportation, so that they can maintain a synchronous transmission state at any traction speed, and can avoid speed difference during high-speed transmission.

[0017] 2. Through the design of the hydraulic rod, the guide block, the second transmission column and the second gear, when the spacing between the two sets of conveyor belts is adjusted, the two sets of limit rods can be pushed or pulled by starting the two sets of hydraulic rods to slide vertically in the guide groove through the guide block, and the guide block sliding vertically in the guide groove can drive the second connecting plate installed rotatably to move up and down in the connecting frame to achieve the function of spacing adjustment. In the process of the guide block driving the second connecting plate to move up and down, the guide block and the second connecting plate will also drive the second transmission column, the second gear and the first gear to move together respectively, so that the first gear and the second gear are always kept in a meshing state, and the driven second transmission column will pull the synchronization mechanism to move in the sliding groove in an adaptive manner, so that the synchronization mechanism can always remain sleeved on the outer surfaces of the first transmission column and the second transmission column, so that it can maintain a synchronous transmission state at any traction speed, which can avoid speed difference during high-speed transmission, and the synchronous rotation makes the production process more stable and reliable, so that it can run traction at a higher speed without causing quality problems, meeting greater production needs and tighter production plans.

[0018] 3. Through the design of the sliding block, the sliding rod, the third transmission column, the synchronous belt and the push spring, when the motor drives the first connecting disk to drive the first transmission column to rotate, the first transmission column will drive the synchronous belt to rotate, and the driven synchronous belt will drive the third transmission column and the second transmission column to rotate in the same direction at one end of the sliding block and the guide block respectively, and the second transmission column will drive the second gear fixed at one end to mesh with the first gear to rotate in the opposite direction, and the first gear will drive the second connection plate to rotate in the opposite direction. In the transmission process, since the first transmission column, the second transmission column and the third transmission column are of synchronous size, the same number of rotations can be maintained during the transmission rotation, and the second transmission column can also drive the second gear to rotate one circle when it is driven one circle, so that the second gear can mesh with the first gear to drive the second connection plate to drive one circle, thereby achieving the effect of driving the conveyor belt to be synchronously driven in the opposite direction, and the PVC pipe can be bitten between the conveyor belts and pulled.

[0019] When the distance between the second connecting disk and the first connecting disk is adjusted, the guide block will drive the second transmission column to pull the synchronous belt, and the pulled synchronous belt will pull the third transmission column to slide to one end in the sliding groove through the sliding block and press on one end of the pushing spring at the same time, and the pushing spring will apply a pushing force to the sliding block to make the third transmission column tighten the synchronous belt until the spacing adjustment is completed. The third transmission column will be kept in the current position through the sliding block. The second transmission column after the spacing adjustment is transmitted by the synchronous belt can make the synchronous belt always remain mounted on the outer surfaces of the first transmission column and the second transmission column, so that the synchronous transmission connection state can be operated while changing the spacing. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a structural schematic diagram of a U-shaped conveyor belt of the utility model;

[0022] Figure 3 This is a schematic diagram of the push-pull mechanism structure of the utility model;

[0023] Figure 4 It is a schematic diagram of the structure of the first transmission column and the second transmission column of the utility model;

[0024] Figure 5 This is a schematic diagram of the structure in which the first gear and the second gear of the utility model are meshed;

[0025] Figure 6 This is a schematic diagram of the structure of the synchronization mechanism of the utility model;

[0026] Figure 7 It is a structural schematic diagram of the guide groove and the sliding groove of the utility model.

[0027] In the figure: 1. connecting frame; 101. first connecting plate; 102. conveyor belt; 103. motor; 104. guide groove; 105. first transmission column; 106. sliding groove; 107. second connecting plate; 108. first gear; 2. synchronization mechanism; 201. sliding block; 202. sliding rod; 203. third transmission column; 204. synchronous belt; 205. push spring; 3. push-pull mechanism; 301. hydraulic rod; 302. guide block; 303. limit rod; 304. second transmission column; 305. second gear. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figure 1-Figure 7 , the utility model provides a technical solution:

[0030] like Figure 1-Figure 2 As shown, a new type of high-speed traction machine for PVC pipes comprises: a connecting frame 1, in which a first connecting disc 101 and a second connecting disc 107 are rotatably mounted, and the first connecting disc 101 and the second connecting disc 107 are both tapered, so that the conveyor belt 102 set with the first connecting disc 101 and the second connecting disc 107 is in a U shape;

[0031] Among them, a motor 103 is fixedly installed at one end of the connecting frame 1, and the output shaft of the motor 103 passes through the connecting frame 1 and is fixedly connected to one end of the first connecting disk 101. The rotating column on one side of the first connecting disk 101 passes through the connecting frame 1 and a first transmission column 105 is fixedly installed on the end. The rotating column on one side of the second connecting disk 107 passes through the push-pull mechanism 3 and a first gear 108 is fixedly installed on the end. The outer surfaces of the first transmission column 105 and the first gear 108 are fitted with a synchronization mechanism 2, and the synchronization mechanism 2 is slidably installed in the sliding groove 106. The sliding groove 106 is opened at one end of the connecting frame 1, and the push-pull mechanism 3 is slidably installed in the guide groove 104. The guide groove 104 is opened on both sides of the connecting frame 1.

[0032] The middle parts of the first connection disk 101 and the second connection disk 107 are both in a concave ring shape, so that the conveyor belt 102 can collapse inward according to the diameter of the PVC pipe.

[0033] Through the design of the first connecting disk 101, the second connecting disk 107, the conveyor belt 102, the first transmission column 105, the first gear 108, the synchronous mechanism 2 and the push-pull mechanism 3, when in use, the staff can start the push-pull mechanism 3 to push or pull the second connecting disk 107 according to the diameter of the PVC pipe, and can increase the distance from the first connecting disk 101 until it reaches the diameter size that matches the PVC pipe, and then it can stop. In the process of the second connecting disk 107 being pushed or pulled, it will also pull the synchronous mechanism 2 to slide together in the sliding groove 106, so that the synchronous mechanism 2 can always keep the sleeve and meshing on the outer surface of the first transmission column 105 and the first gear 108, so that it can also operate the state of synchronous transmission connection while changing the distance, and then the motor 103 can be started to drive the first connecting disk 101 The first connecting disk 101 rotates, and the first connecting disk 101 drives the synchronous mechanism 2 to rotate through the first transmission column 105, and the synchronous mechanism 2 synchronously drives the first gear 108 to rotate in the opposite direction, so that the first gear 108 can drive the second connecting disk 107 to rotate in the opposite direction, so that the first connecting disk 101 and the second connecting disk 107 drive the conveyor belt 102 to rotate relatively synchronously, and the two sets of synchronously driven conveyor belts 102 can ensure that the PVC pipe is evenly stressed during the traction process, and can avoid the elongation or compression of the pipe due to uneven stress, and ensure the accuracy of the size and shape of the pipe. In addition, a set of motors 103 simultaneously and synchronously drive the two sets of conveyor belts 102 for traction and transportation, so that they can maintain a synchronous transmission state at any traction speed, and can avoid speed difference during high-speed transmission.

[0034] like Figure 3-Figure 5As shown, the push-pull mechanism 3 includes a guide block 302, which is slidably installed in the guide groove 104, a group of second connecting plates 107 is rotatably installed between each two groups of guide blocks 302, and the rotating column of the second connecting plate 107 is rotatably installed in the guide block 302, and a limit rod 303 is fixedly installed between each two groups of transverse guide blocks 302, and the limit rod 303 can drive the two groups of guide blocks 302 to slide up and down in the guide groove 104 synchronously;

[0035] Among them, a second gear 305 is rotatably mounted on one end of one set of guide blocks 302, and the second gear 305 meshes with the first gear 108. A second transmission column 304 is fixedly mounted on one end of the second gear 305, and the second transmission column 304 is sleeved in the synchronization mechanism 2.

[0036] The upper surfaces of the two groups of limit rods 303 are fixedly connected to the piston rods of the hydraulic rods 301. The hydraulic rods 301 are fixedly installed on both sides of the connecting frame 1. The two groups of hydraulic rods 301 are controlled by a group of hydraulic synchronization valves.

[0037] Through the design of the hydraulic rod 301, the guide block 302, the second transmission column 304 and the second gear 305, when the distance between the two sets of conveyor belts 102 is adjusted, the two sets of hydraulic rods 301 can be started to push or pull the two sets of limit rods 303 to slide vertically in the guide groove 104 through the guide block 302, and the guide block 302 sliding vertically in the guide groove 104 can drive the second connecting plate 107 rotatably installed therebetween to move up and down in the connecting frame 1 to achieve the function of spacing adjustment, and in the process of the guide block 302 driving the second connecting plate 107 to move up and down, the guide block 302 and the second connecting plate 107 will also drive the second transmission column 304, The second gear 305 moves with the first gear 108, so that the first gear 108 and the second gear 305 always maintain a meshing state, and the second transmission column 304 driven to move will pull the synchronization mechanism 2 to move in an adaptive manner in the sliding groove 106, so that the synchronization mechanism 2 can always remain mounted on the outer surfaces of the first transmission column 105 and the second transmission column 304, so that it can maintain a synchronous transmission state at any traction speed, which can avoid speed differences during high-speed transmission. The synchronous rotation makes the production process more stable and reliable, so that it can run traction at a higher speed without causing quality problems, meeting greater production needs and tighter production plans.

[0038] like Figure 6-Figure 7As shown, the synchronization mechanism 2 includes a slide rod 202, which is fixedly installed in a sliding groove 106. The sliding groove 106 is opened at one end of the connecting frame 1. A sliding block 201 is slidably installed on the outer surface of the slide rod 202. A third transmission column 203 is rotatably installed on one end of the sliding block 201. A synchronous belt 204 is sleeved on the outer surface of the third transmission column 203. The other end of the synchronous belt 204 is sleeved on the outer surfaces of the first transmission column 105 and the second transmission column 304.

[0039] A push spring 205 is sleeved on the outer surface of the slide rod 202 , and two ends of the push spring 205 are in contact between the slide groove 106 and the slide block 201 .

[0040] Through the design of the sliding block 201, the sliding rod 202, the third transmission column 203, the synchronous belt 204 and the push spring 205, when the motor 103 drives the first connecting plate 101 to drive the first transmission column 105 to rotate, the first transmission column 105 will drive the synchronous belt 204 to rotate, and the driven synchronous belt 204 will drive the third transmission column 203 and the second transmission column 304 to rotate in the same direction at one end of the sliding block 201 and the guide block 302 respectively, and the second transmission column 304 will drive the second gear 305 fixed at one end to mesh with the first gear 108 to rotate in the opposite direction, and the first gear 108 will rotate in the opposite direction. 08 will drive the second connecting disk 107 to rotate in the opposite direction, and in the transmission process, since the first transmission column 105, the second transmission column 304 and the third transmission column 203 are of synchronous size, they can maintain the same number of rotations during the transmission rotation, and the second transmission column 304 can also drive the second gear 305 to rotate one circle when it is driven one circle, so that the second gear 305 can mesh with the first gear 108 to drive the second connecting disk 107 to drive one circle, thereby achieving the effect of driving the conveyor belt 102 to drive in the opposite direction synchronously, and the PVC pipe can be bitten between the conveyor belts 102 and pulled;

[0041] When adjusting the distance between the second connecting disk 107 and the first connecting disk 101, the guide block 302 will drive the second transmission column 304 to pull the synchronous belt 204, and the pulled synchronous belt 204 will pull the third transmission column 203 to slide to one end in the sliding groove 106 through the sliding block 201 and press on one end of the pushing spring 205 at the same time, and the pushing spring 205 will apply a pushing force to the sliding block 201 to make the third transmission column 203 tighten the synchronous belt 204 until the spacing adjustment is completed. The third transmission column 203 will be kept in the current position through the sliding block 201 and transmit the second transmission column 304 after the spacing adjustment through the synchronous belt 204, so that the synchronous belt 204 can always be kept on the outer surfaces of the first transmission column 105 and the second transmission column 304, so that it can also operate the state of synchronous transmission connection while changing the spacing.

[0042] According to the above technical solution, the working steps of this solution are summarized and sorted out: when in use, the staff can start the hydraulic rod 301 according to the diameter of the PVC pipe to push or pull the two sets of limit rods 303 to slide vertically in the guide groove 104 through the guide block 302, and the guide block 302 sliding vertically in the guide groove 104 can drive the second connecting plate 107 rotatably installed therebetween to move up and down in the connecting frame 1 to achieve the function of spacing regulation, and in the process of the guide block 302 driving the second connecting plate 107 to move up and down, the guide block 302 and the second connecting plate 107 will also drive the second transmission column 304, the second gear 305 and the first gear 108 respectively The third transmission column 203 moves together, so that the first gear 108 and the second gear 305 always keep in meshing state, and the second transmission column 304 driven to move will pull the synchronous belt 204, and the pulled synchronous belt 204 will pull the third transmission column 203 to slide to one end in the sliding groove 106 through the sliding block 201 and press on one end of the pushing spring 205 at the same time, and the pushing spring 205 will apply a pushing force to the sliding block 201 to make the third transmission column 203 tighten the synchronous belt 204 until the spacing adjustment is completed. The third transmission column 203 will be kept in the current position through the sliding block 201 and transmit the spacing adjusted second transmission column 304 through the synchronous belt 204, which can The synchronous belt 204 can always be kept on the outer surface of the first transmission column 105 and the second transmission column 304, so that it can operate the synchronous transmission connection state while changing the spacing. Then, the motor 103 can be started to drive the first connecting plate 101 to drive the first transmission column 105 to rotate. The first transmission column 105 will drive the synchronous belt 204 to rotate, and the driven synchronous belt 204 will drive the third transmission column 203 and the second transmission column 304 to rotate in the same direction at one end of the sliding block 201 and the guide block 302 respectively, and the second transmission column 304 will drive the second gear 305 fixed at one end to mesh with the first gear 1 08 rotates in the opposite direction, and the first gear 108 drives the second connecting disk 107 to rotate in the opposite direction. In the transmission process, since the first transmission column 105, the second transmission column 304 and the third transmission column 203 are of synchronous size, the same number of rotations can be maintained during the transmission rotation, and the second transmission column 304 can also drive the second gear 305 to rotate one circle when it is driven one circle, so that the second gear 305 can mesh with the first gear 108 to drive the second connecting disk 107 to drive one circle, thereby achieving the effect of driving the conveyor belt 102 to drive synchronously in the opposite direction, and the PVC pipe can be bitten between the conveyor belts 102 and pulled.

[0043] In summary: two sets of relatively synchronously rotating conveyor belts 102 can ensure that the PVC pipe is evenly stressed during traction, avoid elongation or compression of the pipe due to uneven stress, and ensure the accuracy of the size and shape of the pipe. A set of motors 103 simultaneously and synchronously drive the two sets of conveyor belts 102 for traction and transportation, so that the two sets of conveyor belts 102 can maintain a synchronous transmission state at any traction speed, and avoid speed difference during high-speed transmission.

[0044] Parts not involved in the present invention are the same as the prior art or can be implemented by the prior art. Although the embodiments of the present invention have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A new type of high-speed traction machine for PVC pipes, characterized in that: include: A connecting frame (1), wherein a first connecting disk (101) and a second connecting disk (107) are rotatably mounted inside the connecting frame (1), wherein the first connecting disk (101) and the second connecting disk (107) are both tapered disk-shaped, so that the conveyor belt (102) mounted on the first connecting disk (101) and the second connecting disk (107) is in a U shape; A motor (103) is fixedly mounted on one end of the connecting frame (1), and an output shaft of the motor (103) passes through the connecting frame (1) and is fixedly connected to one end of a first connecting disk (101). A rotating column on one side of the first connecting disk (101) passes through the connecting frame (1) and a first transmission column (105) is fixedly mounted on the end. A rotating column on one side of the second connecting disk (107) passes through the push-pull mechanism (3) and a first gear (108) is fixedly mounted on the end. A synchronization mechanism (2) is fitted and meshed on the outer surfaces of the first transmission column (105) and the first gear (108). The synchronization mechanism (2) is slidably mounted in a sliding groove (106) which is provided at one end of the connecting frame (1). The push-pull mechanism (3) is slidably mounted in a guide groove (104) which is provided on both sides of the connecting frame (1).

2. A new high-speed traction machine for PVC pipes according to claim 1, characterized in that: The middle parts of the first connection plate (101) and the second connection plate (107) are both in the shape of an inwardly concave ring, so that the conveyor belt (102) can collapse inward according to the diameter of the PVC pipe.

3. A new type of high-speed traction machine for PVC pipes according to claim 1, characterized in that: The push-pull mechanism (3) comprises a guide block (302), the guide block (302) being slidably mounted in the guide groove (104), a group of second connecting disks (107) being rotatably mounted between every two groups of the guide blocks (302), a rotating column of the second connecting disk (107) being rotatably mounted in the guide block (302), and a limiting rod (303) being fixedly mounted between every two groups of the lateral guide blocks (302), the limiting rod (303) being able to drive the two groups of guide blocks (302) to slide up and down synchronously in the guide groove (104); Among them, a second gear (305) is rotatably mounted on one end of one group of the guide blocks (302), the second gear (305) is meshed with the first gear (108), a second transmission column (304) is fixedly mounted on one end of the second gear (305), and the second transmission column (304) is sleeved by the synchronization mechanism (2).

4. A new type of high-speed traction machine for PVC pipes according to claim 3, characterized in that: The upper surfaces of the two groups of limit rods (303) are fixedly connected to the piston rods of the hydraulic rods (301), the hydraulic rods (301) are fixedly mounted on both sides of the connecting frame (1), and the two groups of hydraulic rods (301) are controlled by a group of hydraulic synchronization valves.

5. A new type of high-speed traction machine for PVC pipes according to claim 1, characterized in that: The synchronization mechanism (2) comprises a sliding rod (202), wherein the sliding rod (202) is fixedly mounted in a sliding groove (106), wherein the sliding groove (106) is provided at one end of the connecting frame (1), a sliding block (201) is slidably mounted on the outer surface of the sliding rod (202), a third transmission column (203) is rotatably mounted on one end of the sliding block (201), a synchronous belt (204) is sleeved on the outer surface of the third transmission column (203), and the other end of the synchronous belt (204) is sleeved on the outer surfaces of the first transmission column (105) and the second transmission column (304).

6. A new type of high-speed traction machine for PVC pipes according to claim 5, characterized in that: The outer surface of the slide bar (202) is sleeved with a push spring (205), and the two ends of the push spring (205) are in contact between the slide groove (106) and the slide block (201).

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