Calender traction mechanism

Abstract

The utility model belongs to the technical field of PVC (polyvinyl chloride) film calendering, and particularly relates to a calender traction mechanism which comprises a base, two groups of guide plates are symmetrically mounted on the base, moving grooves are formed in the guide plates, moving blocks are assembled in the moving grooves, lifting blocks are mounted on the moving blocks, indicator lights are mounted on the lifting blocks, and the indicator lights are arranged on the guide plates. A sliding groove is formed in the lifting block, sliding blocks are assembled in the sliding groove, adjusting rollers are rotationally installed on the two sets of sliding blocks, first electrode plates are installed on the bottom sides of the sliding blocks, and second electrode plates are installed on the inner wall of the sliding groove. And then the PVC film is continuously pressed downwards under the action of the gravity of the PVC film, so that the PVC film is in a tensioning state, and when the PVC film is in the tensioning state, the adjusting roller stops moving downwards, so that the tensioning degree of the PVC film is adjusted, and the convenience of adjusting the tensioning degree of the PVC film is improved.

Description

Technical Field

[0001] This utility model relates to the field of PVC film calendering technology, specifically a calendering machine traction mechanism. Background Technology

[0002] The processes of a PVC film production line are feeding, kneading, internal mixing, open milling, filtering, calendering, embossing, cooling, and winding. During the calendering process of PVC film, a traction mechanism is required to transport the PVC film.

[0003] A Chinese patent with authorization announcement number CN 118950613 B discloses a traction device for PVC film processing, including a traction support. The top of the traction support is sequentially equipped with a cooling mechanism for cooling the film by blowing air, a first film guiding mechanism, a second film guiding mechanism, a third film guiding mechanism, a dust removal mechanism, a fourth film guiding mechanism, and a winding mechanism. This invention includes a first dust removal component and a second dust removal component in the dust removal mechanism. The first and second dust removal components can be switched between each other, ensuring that replacing the adhesive rollers on the dust removal components does not affect the cleaning effect on the surface of the plastic film. The first and second dust removal components use adhesive rollers, which provide better cleaning of the dust on the surface of the plastic film, are easy to operate, and have low cost.

[0004] Existing calender traction mechanisms have difficulty detecting and conveniently adjusting the tension of PVC film during the traction process, resulting in poor ease of adjusting PVC film tension. Therefore, a new calender traction mechanism is proposed to address the above problems. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology and solve the problems existing in the existing technology, this utility model proposes a traction mechanism for a calender.

[0006] The technical solution adopted by this utility model to solve its technical problem is a traction mechanism for a calender, including a base. Two sets of guide plates are symmetrically installed on the base. A controller is installed on one of the guide plates. A moving groove is opened in the guide plate, and a moving block is assembled in the moving groove. A lifting block is installed on the moving block, and an indicator light is installed on the lifting block. A sliding groove is opened in the lifting block, and a slider is assembled in the sliding groove. Adjusting rollers are rotatably installed on the two sets of sliders. A first electrode plate is installed on the bottom side of the slider, and a second electrode plate is installed on the inner wall of the sliding groove. The first and second electrode plates are connected to the indicator light through an internal circuit, and the indicator light is connected to the controller through an internal circuit. One of the guide plates is equipped with a stepper motor mounted on a base. A first lead screw is mounted on the output shaft of the stepper motor and is rotatably mounted on the inner wall of the moving groove. The stepper motor is connected to a controller via an internal circuit. When the PVC film becomes loose, the adjusting roller moves vertically downwards and contacts the PVC film. Under its own weight, the roller continuously presses down on the PVC film, bringing it to a taut state. When the PVC film is taut, the adjusting roller stops moving downwards, thus adjusting the tension of the PVC film. This structure allows for convenient adjustment and detection of the PVC film tension, improving the ease of adjusting the PVC film tension.

[0007] Preferably, a calender is mounted on the base. The calender includes a fixed base, on which a mounting frame and a guide frame are mounted. Guide grooves are formed on the mounting frame and guide frame, and guide blocks are fitted within the guide grooves. A second lead screw is rotatably mounted on the inner wall of one of the guide grooves, and a knob is mounted on the second lead screw. First pressure rollers are rotatably mounted on two sets of guide blocks. A first motor is slidably mounted inside the mounting frame and is fixedly mounted on the guide blocks via a machine base. The output shaft of the first motor is fixedly connected to the rotation shaft of the first pressure roller. A second pressure roller is rotatably mounted on the mounting frame and guide frame. A second motor is fixedly mounted inside the mounting frame, and its output shaft is fixedly connected to the rotation shaft of the second pressure roller. A first bracket is mounted on the base, and a third motor is mounted on the first bracket via a machine base. The output shaft of the third motor... A release roller is installed, rotatably mounted on a first support. A second support is mounted on the base, and a fourth motor is mounted on the second support via a base. A take-up roller is mounted on the output shaft of the fourth motor, rotatably mounted on the second support, and PVC film is wound on the take-up roller. A third support is mounted on the base, and a first guide roller is rotatably mounted on the third support. A fourth support is mounted on the base, and a second guide roller is rotatably mounted on the fourth support. By rotating a knob, a second lead screw is rotated, which drives a guide block on it to move vertically downward. The guide block drives a first pressure roller on it to move vertically downward, thus adjusting the gap between the first and second pressure rollers. This structure allows for adjustment of the gap between the two pressure rollers on the calender as needed, improving the adjustability of the device.

[0008] The advantages of this utility model are:

[0009] 1. This utility model achieves tension adjustment of the PVC film by adjusting the tension of the PVC film by moving the adjusting roller vertically downward when the PVC film becomes loose, making contact with the PVC film, and then continuously pressing the PVC film downward under its own weight, so that the PVC film is in a taut state. When the PVC film is in a taut state, the adjusting roller stops moving downward, thus realizing the adjustment of the tension of the PVC film. This structure allows for convenient adjustment of the tension of the PVC film by autonomous detection, which is beneficial to improving the convenience of adjusting the tension of the PVC film.

[0010] 2. This utility model, by rotating a knob, drives the second lead screw to rotate, and the second lead screw drives the guide block on it to move vertically downward. The guide block drives the first pressure roller on it to move vertically downward, thereby realizing the adjustment of the gap between the first pressure roller and the second pressure roller. This structure can adjust the gap between the two pressure rollers on the calender as needed, which is beneficial to improving the adjustability of the device. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a first-person perspective 3D structural diagram;

[0013] Figure 2 This is a schematic diagram of the three-dimensional structure of the adjusting roller.

[0014] Figure 3 This is a schematic diagram of the three-dimensional structure of the lifting block;

[0015] Figure 4 This is a schematic diagram of the three-dimensional structure of a calender.

[0016] Figure 5 This is a schematic diagram of the three-dimensional structure of the traction component.

[0017] In the diagram: 1. Base; 2. Guide plate; 3. Controller; 4. Moving groove; 5. Moving block; 6. Lifting block; 7. Indicator light; 8. Slide groove; 9. Slider; 10. Adjusting roller; 11. First electrode plate; 12. Second electrode plate; 13. Stepper motor; 14. First lead screw; 15. Fixed base; 16. Mounting frame; 17. Guide frame; 18. Guide groove; 19. Guide block; 20. Second lead screw; 21. Knob; 22. First pressure roller; 23. Second pressure roller; 24. Third motor; 25. Release roller; 26. Fourth motor; 27. PVC film; 28. First guide roller; 29. ​​Second guide roller; 30. Rewinding roller. Detailed Implementation

[0018] 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 scope of protection of the present utility model.

[0019] Please see Figure 1-3As shown, a traction mechanism for a calender includes a base 1, on which two sets of guide plates 2 are symmetrically mounted. A controller 3 is mounted on one of the guide plates 2. A moving groove 4 is formed inside the guide plate 2, and a moving block 5 is assembled inside the moving groove 4. A lifting block 6 is mounted on the moving block 5, and an indicator light 7 is mounted on the lifting block 6. A sliding groove 8 is formed inside the lifting block 6, and a slider 9 is assembled inside the sliding groove 8. Adjusting rollers 10 are rotatably mounted on the two sets of sliders 9. A first electrode plate 11 is mounted on the bottom side of the slider 9, and a second electrode plate 12 is mounted on the inner wall of the sliding groove 8. The first electrode plate 11 and the second electrode plate 12 are connected to the indicator light 7 through an internal circuit. The indicator light 7 is connected to the controller 3 through an internal circuit. A stepper motor 13 is mounted on one of the guide plates 2 via a machine base. The output shaft of the stepper motor 13... A first lead screw 14 is installed on the upper part of the moving groove 4. The first lead screw 14 is rotatably mounted on the inner wall of the moving groove 4. The stepper motor 13 is connected to the controller 3 through the internal circuit. During operation, the existing calender traction mechanism has difficulty in detecting and conveniently adjusting the tension of the PVC film 27 during the traction process, resulting in poor convenience in adjusting the tension of the PVC film 27. By operating the third motor 24, the release roller 25 releases the PVC film 27. Then, the PVC film 27 passes around the adjusting roller 10, the first guide roller 28 and the second guide roller 29, and then passes through the first pressure roller 22 and the second pressure roller 23. Finally, the fourth motor 26 operates to drive the winding roller 30 to rotate. The winding roller 30 winds up the PVC film 27, thus realizing the traction and calendering of the PVC film 27.

[0020] During this process, when the PVC film 27 becomes loose, it can no longer support the adjusting roller 10 upwards. At this time, under its own weight, the adjusting roller 10 moves vertically downwards, causing the slider 9 on it to move vertically downwards. The slider 9 then causes the first electrode plate 11 on it to move vertically downwards, bringing it into contact with the second electrode plate 12. At this point, the internal circuit of the indicator light 7 is activated, and the indicator light 7 sends an electrical signal to the controller 3. Upon receiving the signal, the controller 3 controls the stepper motor 13 to operate. The stepper motor 13 drives the first lead screw 14 to rotate, which in turn causes the moving block 5 on it to move vertically downwards. The moving block 5 then causes the lifting block 6 to move vertically downwards, which in turn causes the slider 9 on it to move vertically downwards. The slider 9 then causes the adjusting roller 10 on it to move vertically downwards, bringing it into contact with the second electrode plate 12. When the PVC film 27 comes into contact with the ground, it is pressed downwards by its own gravity, causing the PVC film 27 to be in a taut state. When the PVC film 27 is taut, it will block the adjusting roller 10, preventing the adjusting roller 10 from moving downwards. However, the lifting block 6 will continue to move downwards, causing the first electrode plate 11 and the second electrode plate 12 to separate quickly. The electrical signal of the indicator light 7 will disappear. At this time, the controller 3 controls the stepper motor 13 to stop operating, causing the lifting block 6 to stop moving downwards. This achieves the adjustment of the tension of the PVC film 27. When the PVC film 27 becomes slack again, the above steps are repeated, and the adjusting roller 10 adjusts the tension of the PVC film 27 again. This structure allows for convenient adjustment of the tension of the PVC film 27 by autonomous detection, which improves the ease of adjusting the tension of the PVC film 27.

[0021] Please see Figure 4-5As shown, a calender is mounted on the base 1. The calender includes a fixed base 15, on which a mounting frame 16 and a guide frame 17 are mounted. Guide grooves 18 are formed on the mounting frame 16 and the guide frame 17, and guide blocks 19 are fitted inside the guide grooves 18. A second lead screw 20 is rotatably mounted on the inner wall of one of the guide grooves 18, and a knob 21 is mounted on the second lead screw 20. First pressure rollers 22 are rotatably mounted on both sets of guide blocks 19. A first motor is slidably mounted inside the mounting frame 16 and is fixedly mounted on the guide blocks 19 via a machine base. The output shaft of the first motor is fixedly connected to the rotating shaft of the first pressure roller 22. A second pressure roller 23 is rotatably mounted on the mounting frame 16 and the guide frame 17. A second motor is fixedly mounted inside the mounting frame 16, and its output shaft is fixedly connected to the rotating shaft of the second pressure roller 23. A first bracket is mounted on the base 1, and a third motor 24 is mounted on the first bracket via a machine base. A release roller is mounted on the output shaft of the third motor 24. 25. The release roller 25 is rotatably mounted on the first bracket. The second bracket is mounted on the base 1. The fourth motor 26 is mounted on the second bracket via a machine base. The output shaft of the fourth motor 26 is mounted on the take-up roller 30. The take-up roller 30 is rotatably mounted on the second bracket. PVC film 27 is wound on the take-up roller 30. The third bracket is mounted on the base 1. The first guide roller 28 is rotatably mounted on the third bracket. The fourth bracket is mounted on the base 1. The second guide roller 29 is rotatably mounted on the fourth bracket. During operation, the existing calender traction mechanism has difficulty adjusting the gap between the two pressure rollers on the calender during the traction of the PVC film 27, resulting in poor adjustability of the device. By rotating the knob 21, the second lead screw 20 is driven to rotate. The second lead screw 20 drives the guide block 19 on it to move vertically downward. The guide block 19 drives the first pressure roller 22 on it to move vertically downward, thus realizing the adjustment of the gap between the first pressure roller 22 and the second pressure roller 23.

[0022] After adjustment, the third motor 24 is operated, and the release roller 25 releases the PVC film 27. Then, the PVC film 27 passes around the adjusting roller 10, the first guide roller 28, and the second guide roller 29, and then passes through the first pressure roller 22 and the second pressure roller 23. The first motor and the second motor drive the first pressure roller 22 and the second pressure roller 23 to rotate synchronously relative to each other. The first pressure roller 22 and the second pressure roller 23 calender the PVC film 27. Finally, the fourth motor 26 is operated, driving the take-up roller 30 to rotate. The take-up roller 30 takes up the PVC film 27, realizing the traction and calendering of the PVC film 27. This structure can adjust the gap between the two pressure rollers on the calender as needed, which is beneficial to improving the adjustability of the device.

[0023] Working principle: Existing calender traction mechanisms have difficulty adjusting the gap between the two pressure rollers during the traction of the PVC film 27, resulting in poor adjustability. By rotating knob 21, the second lead screw 20 rotates, causing the guide block 19 on it to move vertically downwards. The guide block 19 then causes the first pressure roller 22 on it to move vertically downwards, thus adjusting the gap between the first pressure roller 22 and the second pressure roller 23. After adjustment, the third motor 24 operates, releasing the PVC film 27 via the release roller 25. The PVC film 27 then passes over the adjusting roller 10, the first guide roller 28, and the second guide roller 29, and then through the first pressure roller 22 and the second pressure roller 23. The first and second motors drive the first pressure roller 22 and the second pressure roller 23 to rotate synchronously relative to each other, calendering the PVC film 27. Finally... The fourth motor 26 operates, driving the take-up roller 30 to rotate. The take-up roller 30 winds up the PVC film 27, realizing the traction and calendering of the PVC film 27. This structure can adjust the gap between the two pressure rollers on the calender as needed, which is beneficial to improving the adjustability of the device. In the process of traction, the existing calender traction mechanism has difficulty in detecting and conveniently adjusting the tension of the PVC film 27, resulting in poor convenience in adjusting the tension of the PVC film 27. By operating the third motor 24, the release roller 25 releases the PVC film 27. Then the PVC film 27 passes around the adjusting roller 10, the first guide roller 28 and the second guide roller 29, and then passes through the first pressure roller 22 and the second pressure roller 23. Finally, the fourth motor 26 operates, driving the take-up roller 30 to rotate. The take-up roller 30 winds up the PVC film 27, realizing the traction and calendering of the PVC film 27.During this process, when the PVC film 27 becomes loose, it can no longer support the adjusting roller 10 upwards. At this time, under its own weight, the adjusting roller 10 moves vertically downwards, causing the slider 9 on it to move vertically downwards. The slider 9 then causes the first electrode plate 11 on it to move vertically downwards, bringing it into contact with the second electrode plate 12. At this point, the internal circuit of the indicator light 7 is activated, and the indicator light 7 sends an electrical signal to the controller 3. Upon receiving the signal, the controller 3 controls the stepper motor 13 to operate. The stepper motor 13 drives the first lead screw 14 to rotate, which in turn causes the moving block 5 on it to move vertically downwards. The moving block 5 then causes the lifting block 6 to move vertically downwards, which in turn causes the slider 9 on it to move vertically downwards. The slider 9 then causes the adjusting roller 10 on it to move vertically downwards, bringing it into contact with the second electrode plate 12. When the PVC film 27 comes into contact with the ground, it is pressed downwards by its own weight, causing the PVC film 27 to be in a taut state. When the PVC film 27 is taut, it will block the adjusting roller 10, preventing the roller 10 from moving further downwards. However, the lifting block 6 will continue to move downwards, causing the first electrode plate 11 and the second electrode plate 12 to separate quickly. The electrical signal of the indicator light 7 disappears. At this time, the controller 3 controls the stepper motor 13 to stop operating, causing the lifting block 6 to stop moving downwards. This achieves the adjustment of the tension of the PVC film 27. When the PVC film 27 becomes slack again, the above steps are repeated, and the adjusting roller 10 adjusts the tension of the PVC film 27 again. This structure allows for convenient adjustment of the tension of the PVC film 27 by autonomous detection, which improves the ease of adjusting the tension of the PVC film 27.

[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A traction mechanism for a calender, characterized in that: Includes a base (1), on which two sets of guide plates (2) are symmetrically mounted. A controller (3) is mounted on one of the guide plates (2). A moving groove (4) is opened in the guide plate (2). A moving block (5) is assembled in the moving groove (4). A lifting block (6) is mounted on the moving block (5). An indicator light (7) is mounted on the lifting block (6). A sliding groove (8) is opened in the lifting block (6). A slider (9) is assembled in the sliding groove (8). An adjusting roller (10) is rotatably mounted on the two sets of sliders (9). A first adjustment roller (10) is mounted on the bottom side of the slider (9). Electrode plate (11), a second electrode plate (12) is installed on the inner wall of the slide groove (8), the first electrode plate (11) and the second electrode plate (12) are connected to the indicator light (7) through the internal circuit, the indicator light (7) is connected to the controller (3) through the internal circuit, a stepper motor (13) is installed on one of the guide plates (2) through the base, a first lead screw (14) is installed on the output shaft of the stepper motor (13), the first lead screw (14) is rotatably installed on the inner wall of the moving groove (4), and the stepper motor (13) is connected to the controller (3) through the internal circuit.

2. The traction mechanism for a calender according to claim 1, characterized in that: A calender is mounted on the base (1). The calender includes a fixed seat (15) on which a mounting frame (16) and a guide frame (17) are mounted.

3. The traction mechanism for a calender according to claim 2, characterized in that: The mounting frame (16) and guide frame (17) are provided with guide grooves (18), and guide blocks (19) are assembled in the guide grooves (18). A second lead screw (20) is rotatably installed on the inner wall of one of the guide grooves (18). A knob (21) is installed on the second lead screw (20). A first pressure roller (22) is rotatably installed on the two sets of guide blocks (19). A first motor is slidably assembled in the mounting frame (16). The first motor is fixedly installed on the guide block (19) through a base. The output shaft of the first motor is fixedly connected to the rotating shaft of the first pressure roller (22).

4. The traction mechanism for a calender according to claim 2, characterized in that: The mounting frame (16) and guide frame (17) are rotatably mounted with a second pressure roller (23). The mounting frame (16) is fixedly mounted with a second motor inside. The output shaft of the second motor is fixedly connected to the rotating shaft of the second pressure roller (23).

5. A traction mechanism for a calender according to claim 1, characterized in that: A first bracket is mounted on the base (1), and a third motor (24) is mounted on the first bracket via a base. A release roller (25) is mounted on the output shaft of the third motor (24). The release roller (25) is rotatably mounted on the first bracket. A second bracket is mounted on the base (1), and a fourth motor (26) is mounted on the second bracket via a base. A take-up roller (30) is mounted on the output shaft of the fourth motor (26). The take-up roller (30) is rotatably mounted on the second bracket. A PVC film (27) is wound on the take-up roller (30).

6. The traction mechanism for a calender according to claim 1, characterized in that: A third bracket is installed on the base (1), and a first guide roller (28) is rotatably installed on the third bracket. A fourth bracket is installed on the base (1), and a second guide roller (29) is rotatably installed on the fourth bracket.

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