PVC film constant tension traction device

Abstract

The utility model discloses a PVC film constant tension traction device applies in the technical field of tension adjusting device, including base, the top of base is equipped with the support seat symmetry, one side of support seat is provided with the mount, the symmetry rotation connection of two mount has the connecting shaft, the surface fixed sleeve of connecting shaft has the connecting roller, the surface of connecting roller is provided with a plurality of and is presented as the fixed seat of annular equidistance arrangement, the side of fixed seat away from connecting roller is equipped with soft brush hair, the utility model discloses two connecting shafts are designed, two connecting shafts all install the connecting roller on top, when drive motor starts, two connecting rollers reverse rotation can drive the rotation of soft brush hair that is evenly distributed on the connecting roller top, and soft brush hair continuously cleans the film surface, avoids having dust impurity to adhere on the surface of film, prevents the damage of dust impurity to film when film winding.

Description

Technical Field

[0001] This utility model belongs to the technical field of tension adjustment devices, and specifically relates to a constant tension traction device for PVC film. Background Technology

[0002] When PVC film is being wound up, a tension traction adjustment device is required. This device ensures the neatness of the PVC film winding and prevents the PVC film from being overstretched or breaking.

[0003] Currently, traditional tension traction adjustment devices still have certain problems in use. For example, during the winding and conveying process of PVC film, static electricity is easily generated on the surface, causing the film to attract dust and impurities during the conveying process. Traditional tension traction adjustment devices lack the function of cleaning surface dust and impurities. These impurities and dust can easily cause indentations or scratches on the surface of PVC film during the winding and conveying process. Utility Model Content

[0004] The purpose of this invention is to provide a constant tension traction device for PVC film, which has the advantages of being easy to clean dust and impurities and easy to disassemble.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a PVC film constant tension traction device, including a base, a support seat symmetrically mounted on the top of the base, an mounting seat provided on one side of the support seat, a connecting shaft symmetrically rotatably connected between the two mounting seats, a connecting roller fixedly sleeved on the surface of the connecting shaft, a plurality of fixed seats arranged in a ring at equal intervals on the surface of the connecting roller, soft bristles mounted on the side of the fixed seat away from the connecting roller, a plurality of fixed grooves slidably engaging with the fixed seats on the surface of the connecting roller, and limit seats symmetrically provided at both ends of the connecting roller.

[0006] The above technical solution involves two connecting shafts, each equipped with a connecting roller. When the drive motor starts, the two connecting rollers rotate in opposite directions, causing the soft brush bristles evenly distributed on them to rotate. The soft brush bristles continuously clean the film surface, preventing dust and impurities from adhering to the film surface and preventing damage to the film during winding. The design includes a fixing groove that slides into the fixing seat. When the soft brush bristles need to be removed for cleaning, simply remove the limiting bolt on the limiting seat, detach the limiting seat from the connecting roller, and then pull the fixing seat out of the fixing groove to separate the soft brush bristles from the connecting roller. This facilitates subsequent cleaning of the soft brush bristles and prevents dust accumulation on the bristles from deteriorating the film cleaning effect.

[0007] The present invention is further configured such that a sliding groove is provided on the top of the support base, a hydraulic cylinder is assembled inside the sliding groove, a sliding block is fixedly sleeved on the output end of the hydraulic cylinder, a tension roller is provided between the two support bases, and a guide roller is symmetrically rotatably connected between the two support bases.

[0008] Using the above technical solution: the hydraulic cylinder can drive the height of the sliding block to be adjusted. When the height of the two sliding blocks is adjusted, the height of the tension roller installed on the top of the two sliding blocks can be adjusted, thereby adjusting the conveying tension of the film. The two guide rollers are at the bottom position of the tension roller. After the film passes between the two connecting rollers, it passes through the top of one guide roller and along the bottom of the tension roller to pass through the top of the other guide roller. This can guide the film while making the tension roller subject to the tension of the film.

[0009] The present invention is further configured such that a tension sensor is fixedly connected to the top of the sliding block, a bearing seat is mounted on the top of the tension sensor, both ends of the tension roller are rotatably connected to the bearing seat, and a controller is fixedly connected to the support seat on the top of the base.

[0010] Using the above technical solution: the tension sensor can receive the tension applied by the film to the tension roller, and the controller is used to control the height adjustment of the hydraulic cylinder output end, so as to drive the height adjustment of the tension roller at the top of the sliding block, thereby achieving tension adjustment during film conveying.

[0011] The present invention is further configured such that the surface of the sliding block is symmetrically fitted with sliders, and the interior of the sliding groove is provided with a sliding groove that is slidably connected to the sliding block.

[0012] By adopting the above technical solution, the sliding block can be limited when it moves inside the sliding groove.

[0013] The present invention is further configured such that a drive motor is provided on the top of the base, the output end of the drive motor is bolted to the connecting shaft, and the drive motor is fixedly connected to the mounting base.

[0014] Using the above technical solution: when the drive motor starts, it can drive the connecting shaft bolted to the output end of the drive motor to rotate.

[0015] The present invention is further configured such that a connecting seat is bolted to the mounting base, and the other end of the connecting seat is fixedly connected to the support base.

[0016] The above technical solution involves fixing and limiting the mounting base to secure it to the support base.

[0017] The present invention is further configured such that one end of the connecting shaft extends through to the other side of the mounting base and is fixedly sleeved with a first gear, the surfaces of the two first gears are meshed with second gears, the two second gears are rotatably connected to the mounting base through a rotating shaft, and the two second gears are meshed with each other.

[0018] The above technical solution is adopted: when the connecting shaft directly connected to the output end of the drive motor rotates, it can drive the first gear on the connecting shaft to rotate, thereby driving the second gear meshing on the mounting base to rotate in the opposite direction. The rotation of the second gear drives another second gear to rotate in the opposite direction, thereby driving another first gear to rotate, so that the two connecting shafts rotate simultaneously and in opposite directions.

[0019] The present invention is further configured such that a limit bolt is threadedly connected to the limit seat, and the limit bolt is threadedly connected to the connecting roller.

[0020] By adopting the above technical solution, the limiting seat can be fixed to the connecting roller.

[0021] In summary, this utility model has the following beneficial effects: 1. This utility model is designed with two connecting shafts, each with a connecting roller. When the drive motor starts, the two connecting rollers rotate in opposite directions, which can drive the soft brush bristles evenly distributed on the connecting rollers to rotate. The soft brush bristles continuously clean the film surface, preventing dust and impurities from adhering to the film surface and preventing dust and impurities from damaging the film during film winding. 2. This utility model features a fixed groove that slides and engages with the fixed seat. When the soft brush bristles need to be removed for cleaning, simply remove the limiting bolt on the limiting seat, detach the limiting seat from the connecting roller, and then pull the fixed seat out of the fixed groove to separate the soft brush bristles from the connecting roller. This facilitates subsequent cleaning of the soft brush bristles and prevents dust accumulation on the soft brush bristles from deteriorating the film cleaning effect. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a partial structural schematic diagram of the present invention; Figure 3 This is a top view of the sliding block of this utility model; Figure 4 This is a schematic diagram of the connecting roller structure of this utility model; Figure 5 This is a schematic diagram of the connection between the fixing base and the soft brush bristles of this utility model; Figure 6 This is a schematic diagram of the limiting seat structure of this utility model.

[0023] Reference numerals in the attached drawings: 1. Base; 2. Support seat; 3. Mounting seat; 4. Connecting shaft; 5. Connecting roller; 6. Fixed seat; 7. Soft brush bristles; 8. Fixed groove; 9. Limiting seat; 10. Sliding groove; 11. Hydraulic cylinder; 12. Sliding block; 13. Tension roller; 14. Guide roller; 15. Tension sensor; 16. Bearing seat; 17. Controller; 18. Slider; 19. Sliding groove; 20. Drive motor; 21. Connecting seat; 22. First gear; 23. Second gear; 24. Limiting bolt. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings.

[0025] Example 1: refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 A constant tension traction device for PVC film includes a base 1, with a support seat 2 symmetrically mounted on the top of the base 1. A mounting seat 3 is provided on one side of the support seat 2. A connecting shaft 4 is symmetrically rotatably connected between the two mounting seats 3. A connecting roller 5 is fixedly sleeved on the surface of the connecting shaft 4. Multiple fixed seats 6 arranged in a ring at equal intervals are provided on the surface of the connecting roller 5. Soft bristles 7 are mounted on the side of the fixed seats 6 away from the connecting roller 5. By designing two connecting shafts 4, each with a connecting roller 5 mounted on it, when the drive motor 20 starts, the two connecting rollers 5 rotate in opposite directions, which can drive the soft bristles 7 evenly distributed on the connecting rollers 5 to rotate. The soft bristles 7 continuously clean the film surface, preventing dust and impurities from adhering to the film surface and preventing damage to the film during winding.

[0026] refer to Figure 1 and Figure 3 The top of the support base 2 is provided with a sliding groove 10, and a hydraulic cylinder 11 is installed inside the sliding groove 10. A sliding block 12 is fixedly sleeved at the output end of the hydraulic cylinder 11. A tension roller 13 is provided between the two support bases 2, and a guide roller 14 is symmetrically rotatably connected between the two support bases 2. By setting the sliding groove 10, hydraulic cylinder 11, sliding block 12, tension roller 13 and guide roller 14, the hydraulic cylinder 11 can drive the height of the sliding block 12 to be adjusted. When the height of the two sliding blocks 12 is adjusted, the height of the tension roller 13 installed on the top of the two sliding blocks 12 can be adjusted, thereby adjusting the conveying tension of the film. The two guide rollers 14 are located at the bottom position of the tension roller 13. After the film passes through the two connecting rollers 5, it passes through the top of one guide roller 14 and along the bottom of the tension roller 13 to pass through the top of the other guide roller 14. This can guide the film while making the tension roller 13 subject to the tension of the film.

[0027] refer to Figure 1 A tension sensor 15 is fixedly connected to the top of the sliding block 12, and a bearing seat 16 is mounted on the top of the tension sensor 15. Both ends of the tension roller 13 are rotatably connected to the bearing seat 16. A controller 17 is fixedly connected to the support seat 2 on the top of the base 1. By setting the tension sensor 15, the bearing seat 16 and the controller 17, the tension sensor 15 can receive the tension applied by the film to the tension roller 13. The controller 17 is used to control the height adjustment of the output end of the hydraulic cylinder 11, so that it drives the height adjustment of the tension roller 13 on the top of the sliding block 12, thereby achieving tension adjustment during film conveying.

[0028] refer to Figure 1 and Figure 3 The surface of the sliding block 12 is symmetrically equipped with sliders 18, and the interior of the sliding groove 10 is provided with a sliding groove 19 that is slidably connected to the sliding block 12. By setting sliders 18 and sliding groove 19, the sliding block 12 can be limited to slide when it moves inside the sliding groove 10.

[0029] refer to Figure 1 and Figure 2 A drive motor 20 is provided on the top of the base 1. The output end of the drive motor 20 is bolted to the connecting shaft 4. The drive motor 20 is fixedly connected to the mounting base 3. By setting the drive motor 20, when the drive motor 20 is started, it can drive the connecting shaft 4 bolted to the output end of the drive motor 20 to rotate.

[0030] refer to Figure 1 A connecting seat 21 is bolted to the mounting base 3. The other end of the connecting seat 21 is fixedly connected to the support base 2. By setting the connecting seat 21, the mounting base 3 is fixed and limited, so that it is fixed on the support base 2.

[0031] refer to Figure 1 and Figure 2 One end of the connecting shaft 4 extends through to the other side of the mounting base 3 and is fixedly sleeved with a first gear 22. The surfaces of the two first gears 22 are meshed with second gears 23. The two second gears 23 are rotatably connected to the mounting base 3 through a rotating shaft, and the two second gears 23 mesh with each other. By setting the first gear 22 and the second gear 23, when the connecting shaft 4, which is directly connected to the output end of the drive motor 20, rotates, it can drive the first gear 22 on the connecting shaft 4 to rotate, thereby driving the meshing second gear 23 on the mounting base 3 to rotate in the opposite direction. The rotation of the second gear 23 then drives the other second gear 23 to rotate in the opposite direction, thereby driving the other first gear 22 to rotate, so that the two connecting shafts 4 rotate simultaneously and in opposite directions.

[0032] Brief description of the usage process: Start the drive motor 20. Under the combined action of the first gear 22 and the second gear 23, the two connecting rollers 5 will rotate simultaneously. When the film passes between the two connecting rollers 5, both sides of the film will be cleaned by the soft bristles 7, removing impurities and dust from the film.

[0033] Example 2: refer to Figure 1 , Figure 2 , Figure 4 and Figure 6 A constant tension traction device for PVC film includes a base 1, with a support seat 2 symmetrically mounted on the top of the base 1. A mounting seat 3 is provided on one side of the support seat 2. A connecting shaft 4 is symmetrically rotatably connected between the two mounting seats 3. A connecting roller 5 is fixedly sleeved on the surface of the connecting shaft 4. Multiple fixed seats 6 arranged in a ring at equal intervals are provided on the surface of the connecting roller 5. Soft brush bristles 7 are mounted on the side of the fixed seat 6 away from the connecting roller 5. Multiple fixing grooves 8 are opened on the surface of the connecting roller 5 to slide and engage with the fixed seats 6. Limit seats 9 are symmetrically provided at both ends of the connecting roller 5. By designing the fixing grooves 8 to slide and engage with the fixed seats 6, when it is necessary to remove the soft brush bristles 7 for cleaning, it is only necessary to remove the limit bolts 24 on the limit seats 9, remove the limit seats 9 from the connecting roller 5, and then pull the fixed seats 6 out of the fixing grooves 8 to separate the soft brush bristles 7 from the connecting roller 5. This facilitates the subsequent cleaning of the soft brush bristles 7 and avoids dust accumulation on the soft brush bristles 7, which would reduce the cleaning effect on the film.

[0034] refer to Figure 1 , Figure 2 and Figure 6 The limiting seat 9 is threadedly connected to the limiting bolt 24, which is threadedly connected to the connecting roller 5. By setting the limiting bolt 24, the limiting seat 9 can be fixed and fixed on the connecting roller 5.

[0035] Brief description of the usage process: When the limit bolt 24 on the limit seat 9 is removed, the limit seat 9 loses its limit between itself and the connecting roller 5. The limit seat 9 is removed from the connecting roller 5, and the fixing seat 6 is pulled out from the fixing groove 8, which can drive the soft brush bristles 7 to separate from the connecting roller 5. This makes it easier to clean the soft brush bristles 7 later and avoids dust accumulation on the soft brush bristles 7, which would reduce the cleaning effect on the film. The reverse operation can be used to install the soft brush bristles 7 on the fixing seat 6 onto the connecting roller 5.

[0036] It should be noted that parts have a lifespan and can be replaced during regular maintenance when they no longer meet performance requirements. Deterioration in performance due to prolonged use of parts is not a design defect of this application.

[0037] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A PVC film constant tension traction device, comprising a base (1), characterized in that: The top of the base (1) is symmetrically equipped with a support seat (2), and a mounting seat (3) is provided on one side of the support seat (2). A connecting shaft (4) is symmetrically rotatably connected between the two mounting seats (3). A connecting roller (5) is fixedly sleeved on the surface of the connecting shaft (4). A plurality of fixed seats (6) arranged in a ring at equal intervals are provided on the surface of the connecting roller (5). Soft bristles (7) are installed on the side of the fixed seat (6) away from the connecting roller (5). A plurality of fixed grooves (8) are opened on the surface of the connecting roller (5) to slide and engage with the fixed seats (6). Limit seats (9) are symmetrically provided at both ends of the connecting roller (5).

2. The PVC film constant tension traction device according to claim 1, characterized in that: The top of the support base (2) is provided with a sliding groove (10), and a hydraulic cylinder (11) is installed inside the sliding groove (10). A sliding block (12) is fixedly sleeved on the output end of the hydraulic cylinder (11). A tension roller (13) is provided between the two support bases (2), and a guide roller (14) is symmetrically rotated between the two support bases (2).

3. The PVC film constant tension traction device according to claim 2, characterized in that: The top of the sliding block (12) is fixedly connected to a tension sensor (15), and the top of the tension sensor (15) is equipped with a bearing seat (16). Both ends of the tension roller (13) are rotatably connected to the bearing seat (16). The top of the base (1) is provided with a controller (17) fixedly connected to the support seat (2).

4. The PVC film constant tension traction device according to claim 2, characterized in that: The surface of the sliding block (12) is symmetrically fitted with sliders (18), and the interior of the sliding groove (10) is provided with a sliding groove (19) that is slidably connected to the sliding block (12).

5. The PVC film constant tension traction device according to claim 1, characterized in that: The base (1) is provided with a drive motor (20) on its top. The output end of the drive motor (20) is bolted to the connecting shaft (4). The drive motor (20) is fixedly connected to the mounting base (3).

6. The PVC film constant tension traction device according to claim 1, characterized in that: A connecting seat (21) is bolted to the mounting base (3), and the other end of the connecting seat (21) is fixedly connected to the support base (2).

7. The PVC film constant tension traction device according to claim 1, characterized in that: One end of the connecting shaft (4) extends through to the other side of the mounting base (3) and is fixedly sleeved with a first gear (22). The surfaces of the two first gears (22) are meshed with second gears (23). The two second gears (23) are rotatably connected to the mounting base (3) through a rotating shaft, and the two second gears (23) mesh with each other.

8. A PVC film constant tension traction device according to claim 1, characterized in that: The limiting seat (9) is threadedly connected to a limiting bolt (24), and the limiting bolt (24) is threadedly connected to the connecting roller (5).

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