A board traction device for polyvinyl chloride board production

Abstract

The utility model discloses a kind of plate material traction devices for polyvinyl chloride plate production, including support frame and lower conveyor, the inside installation of support frame is equipped with lower conveyor, the upper conveyor is installed in the top of support frame of lower conveyor upper side, the inside installation of support frame in lower conveyor one side is equipped with connecting frame, the top of support frame in connecting frame upper side is equipped with side conveyor, lifting plate is installed on the outer wall of support frame far from side conveyor one side, screw rod moving assembly is installed on the outer wall of lifting plate. The utility model not only realizes that plate material traction device is conveniently pulled and is conveyed to polyvinyl chloride plate, facilitates drilling processing in the way of polyvinyl chloride plate pulling and conveying, and conveniently, plate material traction device is conveniently fed to polyvinyl chloride plate, facilitates limiting guide in polyvinyl chloride plate feeding process, improves the efficiency of polyvinyl chloride plate pulling and conveying.

Description

Technical Field

[0001] This utility model relates to the technical field of sheet traction devices, specifically a sheet traction device for polyvinyl chloride sheet production. Background Technology

[0002] By using a feeding mechanism and roller conveyor, the feeding, storage, and horizontal conveying of the sheet material are achieved, reducing labor costs and improving processing efficiency. The thickness of the sheet material is measured in real time by a thickness gauge probe, and the spacing of the traction frame is dynamically adjusted to avoid a decrease in processing efficiency due to differences in sheet material thickness. By adjusting the contact pressure between the device and the sheet material, it is ensured that the sheet material will not be shifted or damaged due to changes in thickness or external forces during the conveying process.

[0003] As disclosed in the patent announcement number CN207511311U, a plate traction device includes an upper roller, a lower roller, a first connecting rod, and a second connecting rod. A conveying channel is formed between the upper roller and the lower roller. The upper roller is mounted on the first connecting rod, and the lower roller is mounted on the second connecting rod. The upper roller includes a mounting part, a collar, and a spring. The mounting part is sleeved on the first connecting rod, and an annular groove is provided on the surface of the mounting part. The collar is sleeved on the mounting part and has a connecting groove that communicates with the annular groove. The spring is located in the annular groove and inserted into the connecting groove. A gap is provided between the collar and the mounting part.

[0004] It enables traction of plates within a certain thickness range, thus ensuring the flexibility of plate traction and preventing plates from getting stuck in the conveying channel; in addition, the collar is in direct contact with the plate, and only the collar needs to be replaced after it wears out, thereby reducing the cost of use.

[0005] However, the existing sheet traction devices are generally not conducive to the convenient traction and transportation of PVC sheets, making it inconvenient to drill holes during the traction and transportation of PVC sheets, making it inconvenient for the sheet traction device to easily load PVC sheets, and making it inconvenient to limit and guide the PVC sheets during the loading process, thus affecting the efficiency of traction and transportation of PVC sheets. Utility Model Content

[0006] The purpose of this utility model is to provide a sheet traction device for the production of polyvinyl chloride (PVC) sheets, in order to solve the problems mentioned in the background art, such as the inconvenience of convenient traction and transportation of PVC sheets, the inconvenience of drilling during the traction and transportation of PVC sheets, the inconvenience of convenient feeding of PVC sheets, and the inconvenience of limiting and guiding during the feeding of PVC sheets, which affect the efficiency of traction and transportation of PVC sheets.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a sheet traction device for polyvinyl chloride (PVC) sheet production, comprising a support frame and a lower conveyor. The lower conveyor is installed inside the support frame, and an upper conveyor is installed at the top of the support frame above the lower conveyor. A connecting frame is installed inside the support frame on one side of the lower conveyor, and a side conveyor is installed at the top of the support frame above the connecting frame. A lifting plate is installed on the outer wall of the support frame away from the side conveyor. A screw moving assembly is installed on the outer wall of the lifting plate, and a lifting conveyor is slidably installed on the outer wall of the screw moving assembly. A third sensor is installed on the outer wall of the upper conveyor, a first sensor is installed on the outer wall of the lower conveyor, a second sensor is installed on the outer wall of the lifting conveyor, a limit plate is installed on the outer wall of the side conveyor, and a servo motor is installed on the outer wall of the limit plate.

[0008] Preferably, the output end of the servo motor is equipped with a drive pulley, the surface of which is fitted with a belt. A driven pulley is movably mounted on the outer wall of the limiting plate away from the servo motor, and the belt extends to the surface of the driven pulley. Limiting rails are symmetrically mounted on the outer wall of the limiting plate on the belt side. Limiting sleeves are slidably mounted on the outer walls of the limiting rails. A movable plate is provided outside the limiting plate on the driven pulley side, and the movable plate is connected to the limiting sleeve. A connecting block is mounted on the outer wall of the movable plate, and the connecting block is connected to the belt. A lifting cylinder is mounted on the side wall of the movable plate, and a drive frame is mounted on the output end of the lifting cylinder. Slide rails are symmetrically mounted on the side wall of the movable plate on the drive frame side, and sliding sleeves are slidably mounted on the outer walls of the slide rails, and the sliding sleeves are connected to the drive frame.

[0009] Preferably, a transmission frame is installed on the outer wall of the drive frame, and clamping cylinders are symmetrically installed at the bottom end of the transmission frame, with clamping plates installed at the output ends of each clamping cylinder.

[0010] Preferably, a flipping frame is movably and symmetrically installed at the top of the connecting frame, and a flipping shaft is installed at the top of the connecting frame on one side of the flipping frame.

[0011] Preferably, the connecting frame is movably connected to the flipping frame via a flipping shaft, and multiple sets of conveying rollers with equal spacing are movably installed between the two sides of the flipping frame.

[0012] Preferably, a tilting cylinder is movably mounted on the top of the connecting frame on one side of the tilting frame, and a drive shaft is mounted on the output end of each tilting cylinder.

[0013] Preferably, the tilting cylinder is connected to the tilting frame via a drive shaft, and a guide frame is installed at the top of the tilting frame.

[0014] Preferably, the guide frame is equipped with multiple sets of equally spaced guide wheels inside, and the guide wheels extend to the outside of the guide frame.

[0015] Preferably, a control panel is installed on the outer wall of the support frame on one side of the connecting frame, and the output end of the control panel is electrically connected to the input ends of the third sensor, the first sensor, the second sensor, the lower conveyor, the upper conveyor, the lifting conveyor, the side conveyor, the lead screw moving assembly, the servo motor, the lifting cylinder, the clamping cylinder, and the tilting cylinder.

[0016] Compared with the prior art, the beneficial effects of this utility model are: the sheet traction device not only realizes convenient traction and transportation of PVC sheets, facilitating drilling during the traction and transportation of PVC sheets, but also facilitates convenient loading of PVC sheets and provides limiting guidance during the loading process, thereby improving the efficiency of traction and transportation of PVC sheets. (1) The tilting cylinder drives the tilting frame and the conveying rollers to adjust to a suitable angle. The PVC sheet is manually placed on the surface of multiple sets of conveying rollers. Under the action of gravity, the multiple sets of conveying rollers move the PVC sheet to the surface of the lower conveyor. The lower conveyor moves the PVC sheet to one side of the lifting conveyor. When the first sensor detects the PVC sheet, the screw moving assembly, supported by the lifting plate, drives the lifting conveyor to one side of the PVC sheet. The control panel is turned on to open the lifting conveyor, so as to facilitate the transport of the PVC sheet from the surface of the lower conveyor to the surface of the lifting conveyor. When the second sensor detects the PVC sheet, the screw moving assembly, supported by the lifting plate, drives the lifting conveyor to one side of the PVC sheet. When the second sensor detects the PVC sheet, it sends a signal to the control panel, allowing the control panel to stop the lifting conveyor and simultaneously reverse the screw movement assembly. This allows the screw movement assembly to move the lifting conveyor and the PVC sheet to the upper conveyor side. The control panel then continues to operate the lifting conveyor, allowing it to transport the PVC sheet to the surface of the upper conveyor. The control panel then operates the upper conveyor, allowing it to transport the PVC sheet to the side conveyor side. When the third sensor detects the PVC sheet, it sends a signal to... The control panel internally sends signals, the servo motor drives the drive pulley to rotate, the drive pulley drives the belt to rotate, the belt drives the moving plate through the connecting block to move, so that the moving plate can move the drive frame, transmission frame, clamping cylinder, and clamping plate to one side of the PVC sheet. The lifting cylinder drives the drive frame to move, the drive frame drives the transmission frame, clamping cylinder, and clamping plate to move above the PVC sheet, so that the clamping cylinder can drive the two sets of clamping plates to clamp the PVC sheet. The control panel reverses to open the lifting cylinder and servo motor, so that the clamped PVC sheet can be moved to the appropriate position. Drilling is then performed on the PVC sheet. After the PVC sheet is processed, the servo motor drives one end of the processed PVC sheet to the top of the side conveyor. The control panel opens the two sets of clamping cylinders in reverse to facilitate the placement of the processed PVC sheet on the surface of the side conveyor. The side conveyor then pulls and transports the processed PVC sheet to the next process. This achieves convenient traction and transportation of PVC sheets by the sheet traction device, facilitates drilling during the traction and transportation of PVC sheets, and improves the efficiency of traction and transportation of PVC sheets. (2) The tilting cylinder drives the tilting frame to rotate around the tilting shaft via the drive shaft. The tilting frame drives multiple sets of conveying rollers and guide frames to move to a suitable angle. The PVC sheet is placed on the surface of multiple sets of conveying rollers by hand. Under the action of gravity, the PVC sheet is transported to the surface of the lower conveyor. The guide wheel limits and guides the PVC sheet, realizing the convenient feeding of PVC sheet by the sheet traction device. It facilitates the limiting and guiding during the feeding of PVC sheet, and improves the convenience of feeding and traction of PVC sheet. Attached Figure Description

[0017] Figure 1 This is a front view structural diagram of the present utility model; Figure 2 This is a three-dimensional structural diagram of the present invention; Figure 3 This is a three-dimensional structural diagram of the limiting plate of this utility model; Figure 4 This is a three-dimensional structural diagram of the connecting frame of this utility model; Figure 5 This is a three-dimensional structural diagram of the drive frame of this utility model; Figure 6 This is a three-dimensional structural diagram of the lifting cylinder of this utility model.

[0018] In the diagram: 1. Support frame; 2. Lower conveyor; 3. Upper conveyor; 4. Connecting frame; 5. Side conveyor; 6. Lifting plate; 7. Lifting conveyor; 8. Screw moving assembly; 9. Control panel; 10. First sensor; 11. Second sensor; 12. Third sensor; 13. Limiting plate; 14. Servo motor; 15. Drive pulley; 16. Limiting rail; 17. Belt; 18. Limiting sleeve; 19. Connecting block; 20. Moving plate; 21. Driven pulley; 22. Lifting cylinder; 23. Drive frame; 24. Sliding sleeve; 25. Slide rail; 26. Transmission frame; 27. Clamping cylinder; 28. Clamping plate; 29. ​​Tilting frame; 30. Tilting shaft; 31. Conveying roller; 32. Tilting cylinder; 33. Drive shaft; 34. Guide frame; 35. Guide wheel. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0022] Example 1 Please see Figure 1-6 This utility model provides an embodiment of a sheet traction device for polyvinyl chloride (PVC) sheet production, comprising a support frame 1 and a lower conveyor 2. The lower conveyor 2 is installed inside the support frame 1. An upper conveyor 3 is installed at the top of the support frame 1 above the lower conveyor 2. A connecting frame 4 is installed inside the support frame 1 on one side of the lower conveyor 2. A side conveyor 5 is installed at the top of the support frame 1 above the connecting frame 4. A lifting plate 6 is installed on the outer wall of the support frame 1 away from the side conveyor 5. A screw moving assembly 8 is installed on the outer wall of the lifting plate 6. A lifting conveyor 7 is slidably installed on the outer wall of the screw moving assembly 8. A third sensor 12 is installed on the outer wall of the upper conveyor 3. A first sensor 10 is installed on the outer wall of the lower conveyor 2. A second sensor 11 is installed on the outer wall of the lifting conveyor 7. A limit plate 13 is installed on the outer wall of the side conveyor 5. A servo motor 14 is installed on the outer wall of the limit plate 13. A drive pulley 15 is installed at the output end of the servo motor 14. A belt is fitted on the surface of the drive pulley 15. 17. A driven pulley 21 is movably mounted on the outer wall of the limiting plate 13 on the side away from the servo motor 14, and the belt 17 extends to the surface of the driven pulley 21. Limiting rails 16 are symmetrically mounted on the outer wall of the limiting plate 13 on the side of the belt 17. Limiting sleeves 18 are slidably mounted on the outer wall of each limiting rail 16. A movable plate 20 is provided outside the limiting plate 13 on the side of the driven pulley 21, and the movable plate 20 is connected to the limiting sleeve 18. A connecting block 19 is mounted on the outer wall of the movable plate 20. A lifting cylinder 22 is installed on the side wall of the movable plate 20 connected to the belt 17. A drive frame 23 is installed at the output end of the lifting cylinder 22. A slide rail 25 is symmetrically installed on the side wall of the movable plate 20 on one side of the drive frame 23. A sliding sleeve 24 is slidably installed on the outer wall of the slide rail 25 and connected to the drive frame 23. A transmission frame 26 is installed on the outer wall of the drive frame 23. A clamping cylinder 27 is symmetrically installed at the bottom end of the transmission frame 26. A clamping plate 28 is installed at the output end of the clamping cylinder 27. The control panel 9 opens two sets of tilting cylinders 32 to facilitate the tilting cylinders 32 in adjusting the tilting frame 29 and conveyor rollers 31 to a suitable angle. The PVC sheet is then manually placed on the surface of the multiple sets of conveyor rollers 31. Under gravity, the multiple sets of conveyor rollers 31 move the PVC sheet to the surface of the lower conveyor 2. The control panel 9 then opens the lower conveyor 2. Supported by the support frame 1, the lower conveyor 2 moves the PVC sheet to one side of the lifting conveyor 7. When the first sensor 10 detects the PVC sheet, it sends a signal to the control panel 9, allowing the control panel 9 to control the screw moving assembly 8 to open, facilitating the screw moving assembly 8's movement on the lifting plate 6. With the support of the conveyor, the lifting conveyor 7 is moved to the side of the PVC sheet. The control panel 9 is turned on to open the lifting conveyor 7, so that the PVC sheet can be transported from the surface of the lower conveyor 2 to the surface of the lifting conveyor 7. When the second sensor 11 detects the PVC sheet, the second sensor 11 sends a signal to the inside of the control panel 9, so that the control panel 9 can control the lifting conveyor 7 to stop. At the same time, the control screw moving assembly 8 is turned on in the opposite direction, so that the lead screw moving assembly 8 can drive the lifting conveyor 7 and the PVC sheet to the side of the upper conveyor 3. The control panel 9 continues to turn on the lifting conveyor 7, so that the lifting conveyor 7 can transport the PVC sheet to the surface of the upper conveyor 3.The control panel 9 opens the upper conveyor 3 to facilitate the transport of PVC sheets to the side conveyor 5. When the third sensor 12 detects the PVC sheet, it sends a signal to the control panel 9 to control the servo motor 14 to open. With the support of the limit plate 13, the servo motor 14 drives the drive pulley 15 to rotate, which in turn drives the belt 17 to rotate. With the support of the limit plate 13, the driven pulley 21 slides on the belt 17. Supported by a belt 17, the moving plate 20 is moved via a connecting block 19. A limiting sleeve 18 slides on the surface of the limiting rail 16 to provide sliding support for the moving plate 20, facilitating the movement of the moving plate 20, drive frame 23, transmission frame 26, clamping cylinder 27, and clamping plate 28 to one side of the PVC sheet. The control panel 9 opens the lifting cylinder 22. Supported by the moving plate 20, the lifting cylinder 22 moves the drive frame 23. A sliding sleeve 24 slides on the surface of the slide rail 25 to provide sliding support for the drive frame 23. The drive frame 23 then moves the transmission frame 26 and clamping cylinder... 27. The clamping plate 28 moves above the PVC sheet, and the two sets of clamping cylinders 27 are activated. Supported by the movable transmission frame 26, the clamping cylinders 27 drive the two sets of clamping plates 28 to clamp the PVC sheet. The control panel 9 reverses the operation, opening the lifting cylinder 22 and the servo motor 14 to move the clamped PVC sheet to a suitable position for drilling. After the PVC sheet is processed, the control panel 9 continues to activate the servo motor 14 to complete the machining process. One end of the PVC sheet is positioned above the side conveyor 5. The control panel 9 is operated to open the two sets of clamping cylinders 27 in reverse, allowing the two sets of clamping cylinders 27 to place the processed PVC sheet on the surface of the side conveyor 5. The control panel 9 is then operated to open the side conveyor 5, allowing the side conveyor 5 to pull and transport the processed PVC sheet to the next process. This achieves convenient traction and transportation of the PVC sheet by the sheet traction device, facilitating drilling during the traction and transportation of the PVC sheet and improving the efficiency of traction and transportation of the PVC sheet. A tilting frame 29 is symmetrically mounted on the top of the connecting frame 4. A tilting shaft 30 is mounted on the top of the connecting frame 4 on one side of the tilting frame 29. The connecting frame 4 is movably connected to the tilting frame 29 via the tilting shaft 30. Multiple sets of equally spaced conveying rollers 31 are movably mounted between the two sides of the tilting frame 29. A tilting cylinder 32 is movably mounted on the top of the connecting frame 4 on one side of the tilting frame 29. A drive shaft 33 is mounted on the output end of each tilting cylinder 32. The tilting cylinder 32 is connected to the tilting frame 29 via the drive shaft 33. A guide is mounted on the top of each tilting frame 29. The guide frame 34 has multiple sets of equally spaced guide wheels 35 installed inside, and the guide wheels 35 extend to the outside of the guide frame 34. The control panel 9 is installed on the outer wall of the support frame 1 on one side of the connecting frame 4, and the output end of the control panel 9 is electrically connected to the input end of the third sensor 12, the first sensor 10, the second sensor 11, the lower conveyor 2, the upper conveyor 3, the lifting conveyor 7, the side conveyor 5, the lead screw moving assembly 8, the servo motor 14, the lifting cylinder 22, the clamping cylinder 27, and the tilting cylinder 32. When it is necessary to feed PVC sheets, the control panel 9 opens two sets of tilting cylinders 32. Under the movable support of the connecting frame 4, the tilting cylinders 32 drive the tilting frame 29 to rotate around the tilting shaft 30 via the drive shaft 33. The tilting frame 29 drives multiple sets of conveying rollers 31 and guide frames 34 to move to a suitable angle. The PVC sheets are then manually placed on the surface of the multiple sets of conveying rollers 31. Under the action of gravity, the PVC sheets are conveyed to the surface of the lower conveyor 2. Under the movable support of the guide frame 34 on multiple sets of guide wheels 35, the guide wheels 35 limit and guide the PVC sheets, realizing convenient feeding of PVC sheets by the sheet traction device. This facilitates limiting and guiding the PVC sheets during the feeding process and improves the convenience of feeding and traction of PVC sheets.

[0023] Work steps The tilting cylinder 32 drives the tilting frame 29 and the conveyor roller 31 to adjust to a suitable angle. The PVC sheet is then manually placed on the surface of the multiple sets of conveyor rollers 31. Under gravity, the multiple sets of conveyor rollers 31 move the PVC sheet to the surface of the lower conveyor 2. The lower conveyor 2 then moves the PVC sheet to one side of the lifting conveyor 7. When the first sensor 10 detects the PVC sheet, the screw moving assembly 8, supported by the lifting plate 6, moves the lifting conveyor 7 to the side of the PVC sheet. The control panel 9 then turns on the lifting conveyor 7 to facilitate the transfer of the PVC sheet from the surface of the lower conveyor 2 to the surface of the lifting conveyor 7. When the second sensor 11 detects the PVC sheet, the second sensor 11 generates a signal. The control panel 9 is activated to stop the lifting conveyor 7 and simultaneously reverse the screw moving assembly 8, allowing it to move the lifting conveyor 7 and the PVC sheet to the side of the upper conveyor 3. The control panel 9 then continues to operate the lifting conveyor 7, allowing it to transport the PVC sheet to the surface of the upper conveyor 3. The control panel 9 then opens the upper conveyor 3, allowing it to transport the PVC sheet to the side of the side conveyor 5. When the third sensor 12 detects the PVC sheet, it sends a signal to the control panel 9, causing the servo motor 14 to drive the drive pulley 15 to rotate. The drive pulley 15 then drives the belt 17 to rotate. 17. The connecting block 19 drives the moving plate 20 to move, so that the moving plate 20 can drive the drive frame 23, transmission frame 26, clamping cylinder 27, and clamping plate 28 to one side of the PVC sheet. The lifting cylinder 22 drives the drive frame 23 to move, and the drive frame 23 drives the transmission frame 26, clamping cylinder 27, and clamping plate 28 to move above the PVC sheet, so that the clamping cylinder 27 can drive the two sets of clamping plates 28 to clamp the PVC sheet. The operation control panel 9 reverses the opening of the lifting cylinder 22 and the servo motor 14, so that the clamped PVC sheet can be moved to a suitable position to facilitate drilling of the PVC sheet. After the PVC sheet is processed, the servo motor 14 drives the processed PVC sheet. One end of the material is placed above the side conveyor 5. The control panel 9 is reversed to open the two sets of clamping cylinders 27, so that the two sets of clamping cylinders 27 can place the processed PVC sheet on the surface of the side conveyor 5. The side conveyor 5 pulls and transports the processed PVC sheet to the next process. The flipping cylinder 32 drives the flipping frame 29 to rotate around the flipping shaft 30 via the drive shaft 33. The flipping frame 29 drives multiple sets of conveying rollers 31 and guide frame 34 to move to a suitable angle. The PVC sheet is manually placed on the surface of multiple sets of conveying rollers 31. Under the action of gravity, the PVC sheet is transported to the surface of the lower conveyor 2. The guide wheel 35 limits and guides the PVC sheet to complete the use of the sheet traction device.

[0024] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sheet traction device for polyvinyl chloride sheet production, characterized in that: The system includes a support frame and a lower conveyor. The lower conveyor is installed inside the support frame. An upper conveyor is installed at the top of the support frame above the lower conveyor. A connecting frame is installed inside the support frame on one side of the lower conveyor. A side conveyor is installed at the top of the support frame above the connecting frame. A lifting plate is installed on the outer wall of the support frame away from the side conveyor. A screw moving assembly is installed on the outer wall of the lifting plate. A lifting conveyor is slidably installed on the outer wall of the screw moving assembly. A third sensor is installed on the outer wall of the upper conveyor. A first sensor is installed on the outer wall of the lower conveyor. A second sensor is installed on the outer wall of the lifting conveyor. A limit plate is installed on the outer wall of the side conveyor. A servo motor is installed on the outer wall of the limit plate.

2. The sheet traction device for polyvinyl chloride sheet production according to claim 1, characterized in that: The output end of the servo motor is equipped with a drive pulley, and a belt is fitted onto the surface of the drive pulley. A driven pulley is movably mounted on the outer wall of the limiting plate away from the servo motor, and the belt extends to the surface of the driven pulley. Limiting rails are symmetrically mounted on the outer wall of the limiting plate on the belt side. Limiting sleeves are slidably mounted on the outer walls of the limiting rails. A movable plate is provided outside the limiting plate on the driven pulley side, and the movable plate is connected to the limiting sleeve. A connecting block is mounted on the outer wall of the movable plate, and the connecting block is connected to the belt. A lifting cylinder is mounted on the side wall of the movable plate, and a drive frame is mounted on the output end of the lifting cylinder. Slide rails are symmetrically mounted on the side wall of the movable plate on the drive frame side, and sliding sleeves are slidably mounted on the outer walls of the slide rails, and the sliding sleeves are connected to the drive frame.

3. The sheet traction device for polyvinyl chloride sheet production according to claim 2, characterized in that: A transmission frame is installed on the outer wall of the drive frame, and clamping cylinders are symmetrically installed at the bottom end of the transmission frame. Each clamping cylinder has a clamping plate installed at its output end.

4. The sheet traction device for polyvinyl chloride sheet production according to claim 3, characterized in that: A flipping frame is movably and symmetrically installed at the top of the connecting frame, and a flipping shaft is installed at the top of the connecting frame on one side of the flipping frame.

5. The sheet traction device for polyvinyl chloride sheet production according to claim 4, characterized in that: The connecting frame is movably connected to the flipping frame via a flipping shaft, and multiple sets of conveying rollers with equal spacing are movably installed between the two sides of the flipping frame.

6. The sheet traction device for polyvinyl chloride sheet production according to claim 5, characterized in that: Each of the connecting frames on one side of the tilting frame is movably equipped with a tilting cylinder, and the output end of each tilting cylinder is equipped with a drive shaft.

7. A sheet traction device for polyvinyl chloride sheet production according to claim 6, characterized in that: The tilting cylinder is connected to the tilting frame via a drive shaft, and a guide frame is installed at the top of the tilting frame.

8. A sheet traction device for polyvinyl chloride sheet production according to claim 7, characterized in that: The guide frame is equipped with multiple sets of equally spaced guide wheels inside, and the guide wheels extend to the outside of the guide frame.

9. A sheet traction device for polyvinyl chloride sheet production according to claim 8, characterized in that: A control panel is installed on the outer wall of the support frame on one side of the connecting frame, and the output end of the control panel is electrically connected to the input ends of the third sensor, the first sensor, the second sensor, the lower conveyor, the upper conveyor, the lifting conveyor, the side conveyor, the lead screw moving assembly, the servo motor, the lifting cylinder, the clamping cylinder, and the tilting cylinder.

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