A PET film flattening device

Abstract

This utility model discloses a PET film leveling device, including a support base and a support frame. The support frame is disposed outside the support base, and a machine frame is disposed outside the support frame. A roller is movably mounted on the top side wall of the machine frame. A rotating shaft is movably mounted inside the support base, extending through the support base to its exterior. A servo motor is mounted on the side wall of the support base. This utility model not only enables convenient adjustment of the conveying distance for the leveling device, facilitating flexible leveling of the PET film and increasing the protection effect on the PET film, but also avoids the PET film being too loose or too tight, thus preventing it from affecting the leveling quality and improving the efficiency of the leveling device in the flexible leveling of PET film.

Description

Technical Field

[0001] This utility model relates to the field of leveling device technology, specifically a PET film leveling device. Background Technology

[0002] PET film is a well-rounded packaging film with good transparency and gloss; it has good airtightness and aroma retention; moderate moisture resistance, with moisture permeability decreasing at low temperatures; excellent mechanical properties, with the best toughness among all thermoplastics, and much higher tensile and impact strength than ordinary films; it also has good stiffness and dimensional stability, making it suitable for secondary processing such as printing and paper bags. PET film also has excellent heat and cold resistance, as well as good chemical and oil resistance.

[0003] For example, the PET protective film leveling device disclosed in the authorization announcement number CN222116036U includes a machine base. Symmetrical minimum limit strips are fixedly installed on the left and right sides of the top of the machine base. A height adjustment component is slidably connected to the top of the two minimum limit strips. A moving component is fixedly connected to the upper end of the height adjustment component. The front and rear ends of the moving component are set on the opposite side walls of the front and rear fixed plates.

[0004] Although it enables repeated flattening of PET protective film, further improving the flattening effect of PET protective film, it has high reliability. When the two sliders slide relative to each other on the slide groove, the rotating connecting rod 1 connected to the slider will cause the connecting frame connected to the rotating connecting rod 1 to move upward under the tension of the rotating connecting rod 2. As a result, the flattening roller connected to the connecting frame will move upward, realizing the height adjustment to adapt to the flattening process of PET protective film of different thicknesses.

[0005] However, this does not solve the problem that existing leveling devices of this type are generally not conducive to convenient adjustment of the spacing for conveying, and are not convenient for elastic leveling of PET film. The PET film is easily too loose or too tight, which affects the leveling quality and the efficiency of the leveling device in elastically leveling the PET film. Utility Model Content

[0006] The purpose of this utility model is to provide a PET film leveling device to solve the problems mentioned in the background art, such as the inconvenience of adjusting the spacing for conveying, the inconvenience of elastically leveling the PET film, the PET film being too loose or too tight, affecting the leveling quality, and the efficiency of the leveling device in elastically leveling the PET film.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a PET film leveling device, comprising a support base and a support frame, wherein the support base is provided with a support frame, and the support frame is provided with a machine frame, wherein a roller is movably installed on the top side wall of the machine frame, and a rotating shaft is movably installed inside the support base, the rotating shaft extending through the support base to its outside, a servo motor is installed on the side wall of the support base, the output end of the servo motor is connected to the rotating shaft, a first roller is fitted on the surface of the rotating shaft, a first electric push rod is symmetrically installed on the top of the support base, and a sliding block is installed on the output end of each of the first electric push rods, the sliding block being slidably connected to the support base, and a support shaft is movably installed between the two sets of sliding blocks, and a second roller is fitted on the surface of the support shaft.

[0008] Preferably, three sets of second electric push rods are installed below the top of the support frame, and an L-shaped plate is installed at the output end of the second electric push rod.

[0009] Preferably, six sets of limiting posts are movably installed inside the L-shaped plate, and the limiting posts extend to the outside of the L-shaped plate and are movably connected thereto.

[0010] Preferably, the surface of each limiting post is fitted with a spring, and a leveling block is installed at the bottom of each limiting post.

[0011] Preferably, a stepper motor is installed on the inner wall of the frame, and a rotating shaft is installed at the output end of the stepper motor. The rotating shaft extends through the frame to the outside. A first roller is fitted on the surface of the rotating shaft. A first shaft is movably installed at the top of the frame. A second shaft is movably installed on the side of the top of the frame away from the first shaft. A third roller is fitted on the surface of the first shaft inside the frame.

[0012] Preferably, a fourth roller is fitted on the surface of the second shaft inside the frame, a second roller is fitted on the surface of the first shaft outside the frame, a third roller is fitted on the surface of the second shaft outside the frame, belts are fitted on the surfaces of the first roller, the second roller, and the third roller, a third shaft is movably mounted on the bottom side wall of the frame, and a third electric push rod is fitted on the surface of the third shaft.

[0013] Preferably, a fourth shaft is movably mounted on the output end of the third electric actuator, a support frame is fitted on the surface of the fourth shaft, support blocks are symmetrically mounted on the outer wall of the frame, and a fifth shaft is movably mounted inside each support block.

[0014] Preferably, the fifth axis extends through the support block to its outside, the support block is movably connected to the support frame through the fifth axis, and a rotating roller is movably fitted on the side of the support frame away from the fifth axis.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the leveling device not only realizes the convenient adjustment of the leveling device for conveying, which facilitates the elastic leveling of PET film and increases the protection effect of PET film, but also avoids the PET film being too loose or too tight, which affects the leveling quality and improves the efficiency of the leveling device in elastically leveling PET film.

[0016] The first electric push rod drives the sliding block to move up and down. The sliding block drives the support shaft and the second roller to move up and down, so that the second roller pushes the PET film against the surface of the first roller. The servo motor is turned on, and with the support of the support seat, the servo motor drives the first roller to rotate. With the cooperation of the second roller, the first roller drives the PET film to be conveyed. This facilitates the convenient adjustment of the spacing for conveying, and realizes the convenient adjustment of the spacing for conveying by the leveling device, thus improving the convenience of the leveling device for adjusting the spacing for conveying.

[0017] The second electric push rod drives the L-shaped plate to move downwards. The L-shaped plate drives the limiting post, spring, and leveling block to move downwards. The leveling block presses the PET film against the surface of the support frame for leveling. Under the elastic support of the spring and the limiting post, the leveling block makes elastic contact with the PET film, which facilitates the elastic leveling of the PET film. This allows the leveling device to easily and elastically level the PET film, increases the protection effect of the PET film, and improves the efficiency of the leveling device in elastically leveling the PET film.

[0018] A stepper motor drives a rotating shaft and a first roller to rotate. The first roller drives a belt, a second roller, and a third roller to rotate. The second roller drives a first shaft and a third roller to rotate. The third roller drives a second shaft and a fourth roller to rotate. A third electric push rod drives the fourth shaft to move. Supported by a fifth shaft, the fourth shaft drives a support frame, rotating rollers, and PET film to rotate around the fifth shaft. This facilitates easy lifting or lowering of the PET film to control its tension during transport. The leveling device can easily lift or lower the PET film to control its tension during transport, preventing the PET film from being too loose or too tight, which would affect the leveling quality. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a front view structural diagram of the present utility model;

[0021] Figure 3 This is a three-dimensional structural diagram of the support base of this utility model;

[0022] Figure 4 This is a three-dimensional structural diagram of the L-shaped plate of this utility model;

[0023] Figure 5 This is a three-dimensional structural diagram of the spring of this utility model;

[0024] Figure 6 This is a three-dimensional structural diagram of the frame of this utility model;

[0025] Figure 7 This is a three-dimensional structural diagram of the support frame of this utility model.

[0026] In the diagram: 1. Support base; 2. Support frame; 3. Machine frame; 4. Roller; 5. First roller; 6. Second roller; 7. Servo motor; 8. Rotating shaft; 9. First electric push rod; 10. Sliding block; 11. Support shaft; 12. Second electric push rod; 13. L-shaped plate; 14. Limiting post; 15. Spring; 16. Leveling block; 17. Stepper motor; 18. Rotating shaft; 19. First roller; 20. Third roller; 21. Fourth roller; 22. First shaft; 23. Second shaft; 24. Second roller; 25. Third roller; 26. Belt; 27. Rotating roller; 28. Third shaft; 29. ​​Third electric push rod; 30. Support block; 31. Fourth shaft; 32. Fifth shaft; 33. Support frame. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0028] Please see Figure 1-7 An embodiment of this utility model provides a PET film leveling device, including a support base 1 and a support frame 2. The support base 1 is provided with a support frame 2, and the support frame 2 is provided with a frame 3. A roller 4 is movably installed on the top side wall of the frame 3. A rotating shaft 8 is movably installed inside the support base 1. The rotating shaft 8 extends through the support base 1 to its outside. A servo motor 7 is installed on the side wall of the support base 1. The output end of the servo motor 7 is connected to the rotating shaft 8. A first roller 5 is fitted on the surface of the rotating shaft 8. A first electric push rod 9 is symmetrically installed on the top of the support base 1. A sliding block 10 is installed on the output end of each of the first electric push rods 9. The sliding blocks 10 are slidably connected to the support base 1. A support shaft 11 is movably installed between the two sets of sliding blocks 10. A second roller 6 is fitted on the surface of the support shaft 11.

[0029] When using the PET film leveling device, the PET film is passed through the support base 1, support frame 2, rotating roller 27, and frame 3 and wound onto the surface of the roller 4. When it is necessary to adjust the spacing to ensure stable extrusion and conveying of the PET film, the two sets of first electric push rods 9 are activated. With the support of the support base 1, the first electric push rods 9 drive the sliding block 10 to move up and down. The sliding block 10 drives the support shaft 11 and the second roller 6 to move up and down, so that the second roller 6 pushes the PET film against the surface of the first roller 5. The servo motor 7 is activated. With the support of the support base 1, the servo motor 7 drives the first roller 5 to rotate. With the cooperation of the second roller 6, the first roller 5 carries the PET film for conveying. This facilitates convenient adjustment of the spacing for conveying, realizes convenient adjustment of the spacing for conveying by the leveling device, and improves the convenience of adjusting the spacing for conveying by the leveling device.

[0030] Three sets of second electric push rods 12 are installed below the top of the support frame 2. An L-shaped plate 13 is installed at the output end of the second electric push rod 12. Six sets of limiting posts 14 are movably installed inside the L-shaped plate 13. The limiting posts 14 extend to the outside of the L-shaped plate 13 and are movably connected to it.

[0031] Springs 15 are fitted on the surface of the limiting post 14, and a leveling block 16 is installed at the bottom of the limiting post 14.

[0032] When the PET film needs to be leveled, multiple sets of second electric push rods 12 are opened. Under the support of the support frame 2, the second electric push rods 12 drive the L-shaped plate 13 to move downward. The L-shaped plate 13 drives the limiting post 14, spring 15, and leveling block 16 to move downward. The leveling block 16 presses the PET film against the surface of the support frame 2 for leveling. Under the elastic support of the spring 15 and the limiting of the limiting post 14, the leveling block 16 makes elastic contact with the PET film, which facilitates the elastic leveling of the PET film. This realizes the convenient elastic leveling of the PET film by the leveling device, increases the protection effect of the PET film, and improves the efficiency of the leveling device in elastically leveling the PET film.

[0033] A stepper motor 17 is installed on the inner wall of the frame 3. A rotating shaft 18 is installed at the output end of the stepper motor 17. The rotating shaft 18 extends through the frame 3 to its outside. A first roller 19 is fitted on the surface of the rotating shaft 18. A first shaft 22 is movably installed at the top of the frame 3. A second shaft 23 is movably installed on the side of the top of the frame 3 away from the first shaft 22. A third roller 20 is fitted on the surface of the first shaft 22 inside the frame 3.

[0034] The surface of the second shaft 23 inside the frame 3 is fitted with a fourth roller 21, the surface of the first shaft 22 outside the frame 3 is fitted with a second roller 24, the surface of the second shaft 23 outside the frame 3 is fitted with a third roller 25, the surfaces of the first roller 19, the second roller 24, and the third roller 25 are fitted with a belt 26, and a third shaft 28 is movably installed on the bottom side wall of the frame 3, the surface of the third shaft 28 is fitted with a third electric push rod 29;

[0035] The output end of the third electric push rod 29 is movably mounted with a fourth shaft 31. A support frame 33 is fitted on the surface of the fourth shaft 31. Support blocks 30 are symmetrically mounted on the outer wall of the frame 3. A fifth shaft 32 is movably mounted inside each support block 30. The fifth shaft 32 passes through the support block 30 and extends to its outside. The support block 30 is movably connected to the support frame 33 through the fifth shaft 32. A rotating roller 27 is movably fitted on the side of the support frame 33 away from the fifth shaft 32.

[0036] When it is necessary to control the tension of the PET film feed, stepper motor 17 is turned on. Supported by frame 3, stepper motor 17 drives rotating shaft 18 and first roller 19 to rotate. Supported by second roller 24 and third roller 25, first roller 19 drives belt 26, second roller 24, and third roller 25 to rotate. Second roller 24 drives first shaft 22 and third roller 20 to rotate. Third roller 25 drives second shaft 23 and fourth roller 21 to rotate. Third electric push rod 29 is then activated. Supported by the third shaft 28, the third electric push rod 29 drives the fourth shaft 31 to move. Supported by the fifth shaft 32, the fourth shaft 31 drives the support frame 33, the rotating roller 27, and the PET film to rotate around the fifth shaft 32. This facilitates the easy lifting or lowering of the PET film to control the tightness of the PET film during transport. It also enables the leveling device to easily lift or lower the PET film to control the tightness of the PET film during transport, avoiding the PET film being too loose or too tight and affecting the leveling quality.

[0037] Working principle: The first electric push rod 9 drives the sliding block 10 to move up and down. The sliding block 10 drives the support shaft 11 and the second roller 6 to move up and down, so that the second roller 6 pushes the PET film against the surface of the first roller 5. The servo motor 7 drives the first roller 5 to rotate, and the first roller 5 drives the PET film to be conveyed, which facilitates convenient adjustment of the conveying distance. The second electric push rod 12 drives the L-shaped plate 13 to move down. The L-shaped plate 13 drives the limiting post 14, the spring 15, and the leveling block 16 to move down. The leveling block 16 presses the PET film against the surface of the support frame 2 for leveling. Under the elastic support of the spring 15 and the limiting of the limiting post 14, the leveling block 16 makes elastic contact with the PET film. To facilitate the flexible leveling of PET film, a stepper motor 17 drives a rotating shaft 18 and a first roller 19 to rotate. The first roller 19 drives a belt 26, a second roller 24, and a third roller 25 to rotate. The second roller 24 drives a first shaft 22 and a third roller 20 to rotate. The third roller 25 drives a second shaft 23 and a fourth roller 21 to rotate. A third electric push rod 29 drives a fourth shaft 31 to move. Supported by a fifth shaft 32, the fourth shaft 31 drives a support frame 33, a rotating roller 27, and the PET film to rotate around the fifth shaft 32. This allows for convenient lifting or lowering of the PET film to control its tension during transport, thus completing the leveling device's operation.

Claims

1. A PET film leveling device, characterized in that: The support includes a support base (1) and a support frame (2). The support base (1) is provided with a support frame (2) on its outside. The support frame (2) is provided with a frame (3) on its outside. A roller (4) is movably installed on the top side wall of the frame (3). A rotating shaft (8) is movably installed inside the support base (1). The rotating shaft (8) extends through the support base (1) to its outside. A servo motor (7) is installed on the side wall of the support base (1). The output end of the servo motor (7) is connected to the rotating shaft (8). A first roller (5) is fitted on the surface of the rotating shaft (8). A first electric push rod (9) is symmetrically installed on the top of the support base (1). A sliding block (10) is installed on the output end of each of the first electric push rods (9). The sliding blocks (10) are slidably connected to the support base (1). A support shaft (11) is movably installed between the two sets of sliding blocks (10). A second roller (6) is fitted on the surface of the support shaft (11).

2. The PET film leveling device according to claim 1, characterized in that: Three sets of second electric push rods (12) are installed below the top of the support frame (2), and an L-shaped plate (13) is installed at the output end of the second electric push rod (12).

3. The PET film leveling device according to claim 2, characterized in that: The L-shaped plate (13) is internally fitted with six sets of limiting posts (14), which extend to the outside of the L-shaped plate (13) and are movably connected thereto.

4. A PET film leveling device according to claim 3, characterized in that: The surface of each limiting post (14) is fitted with a spring (15), and a leveling block (16) is installed at the bottom of the limiting post (14).

5. A PET film leveling device according to claim 1, characterized in that: A stepper motor (17) is installed on the inner wall of the frame (3). A rotating shaft (18) is installed at the output end of the stepper motor (17). The rotating shaft (18) extends through the frame (3) to its outside. A first roller (19) is fitted on the surface of the rotating shaft (18). A first shaft (22) is movably installed at the top of the frame (3). A second shaft (23) is movably installed on the side of the top of the frame (3) away from the first shaft (22). A third roller (20) is fitted on the surface of the first shaft (22) inside the frame (3).

6. A PET film leveling device according to claim 5, characterized in that: The surface of the second shaft (23) inside the frame (3) is fitted with a fourth roller (21), the surface of the first shaft (22) outside the frame (3) is fitted with a second roller (24), the surface of the second shaft (23) outside the frame (3) is fitted with a third roller (25), the surfaces of the first roller (19), the second roller (24), and the third roller (25) are fitted with belts (26), the bottom side wall of the frame (3) is movably mounted with a third shaft (28), and the surface of the third shaft (28) is fitted with a third electric push rod (29).

7. A PET film leveling device according to claim 6, characterized in that: The output end of the third electric push rod (29) is movably mounted with a fourth shaft (31), the surface of the fourth shaft (31) is fitted with a support frame (33), and support blocks (30) are symmetrically mounted on the outer wall of the frame (3). The fifth shaft (32) is movably mounted inside each support block (30).

8. A PET film leveling device according to claim 7, characterized in that: The fifth axis (32) extends through the support block (30) to its outside. The support block (30) is movably connected to the support frame (33) via the fifth axis (32). A rotating roller (27) is movably fitted on the side of the support frame (33) away from the fifth axis (32).

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