A kind of food medicine multilayer composite film rectification structure

Abstract

The utility model discloses a kind of deviation rectifying structures of multilayer composite film for food and drug, it is related to packaging machinery technical field;And the utility model includes deviation rectifying component, deviation rectifying component includes shell, the inside rotation of shell is equipped with gear ring, the inside of shell and at the side of gear ring is provided with first motor, the output shaft end of first motor is fixedly connected with driving gear, driving gear and gear ring correspond and are engaged, the top surface of gear ring is fixedly connected with protruding rod, the top surface of shell is rotatably connected with rotating cavity, the top end of protruding rod is fixedly connected with the bottom surface of rotating cavity, the inside of rotating cavity is provided with second motor, the output shaft end of second motor is fixedly connected with worm gear;The utility model can change film path to rectify deviation, and when rectifying deviation, can effectively prevent film from appearing wrinkle, stretch or damage, to be suitable for high-quality food and drug packaging film, and overall structure is compact, easy to maintain.

Description

Technical Field

[0001] This utility model relates to the field of packaging machinery technology, specifically to a correction structure for a multi-layer composite film used in food and pharmaceuticals. Background Technology

[0002] In the food and pharmaceutical packaging industry, multilayer composite films are widely used due to their excellent barrier properties, aroma retention, puncture resistance, and aesthetic appeal. During their manufacturing, printing, coating, or slitting processes, the film rolls need to be continuously conveyed along the production line guide rails. Due to initial position errors of the rolls, roller parallelism deviations, uneven film tension, or uneven thickness of the raw materials themselves, the film is prone to lateral deviation during conveying, i.e., deviating from the preset conveying path. Film deviation can lead to a series of serious consequences, such as inaccurate printing registration, air bubbles or material shortages in coating or composite layers, cutting into patterns during slitting and causing waste, and even film breakage due to edge wear, requiring machine shutdown. This seriously affects production efficiency and product quality, resulting in waste of raw materials. Existing correction devices typically use photoelectric sensors to detect the edge position of the film and drive the correction actuator through a controller. However, their correction action is too rigid and may generate excessive stress on the thin and brittle film material, causing wrinkling or stretching deformation. Moreover, the structure is complex and the maintenance cost is high. To address the above problems, the inventors propose a correction structure for multilayer composite films used in food and pharmaceuticals to solve these issues. Summary of the Invention

[0003] In order to solve the problems of existing correction devices being too rigid in their correction action and having complex structures and high maintenance costs, the purpose of this utility model is to provide a correction structure for multilayer composite films used in food and pharmaceuticals.

[0004] To solve the above technical problems, the present invention adopts the following technical solution: a correction structure for a multilayer composite film for food and pharmaceutical use, comprising a correction component, the correction component comprising a housing, a toothed ring rotatably disposed inside the housing, a first motor disposed inside the housing and on one side of the toothed ring, a drive gear fixedly connected to the output shaft end of the first motor, the drive gear corresponding to and meshing with the toothed ring, a protruding rod fixedly connected to the top surface of the toothed ring, a rotating cavity rotatably connected to the top surface of the housing, the top end of the protruding rod fixedly connected to the bottom surface of the rotating cavity, a second motor disposed inside the rotating cavity, a worm gear fixedly connected to the output shaft end of the second motor, a horizontal shaft rotatably connected inside the rotating cavity, a worm wheel fixedly connected to the middle of the side wall of the horizontal shaft, the worm gear corresponding to and meshing with the worm wheel, movable plates fixedly connected to both ends of the side wall of the horizontal shaft, an adjusting plate fixedly connected to the top surface of the movable plate, and correction rollers rotatably disposed on both sides above the adjusting plate.

[0005] Preferably, a first base is provided on the side wall of the first motor, and the side wall of the first base is fixedly connected to the inner wall of the housing. A ring body is rotatably connected to the outer wall of the gear ring, and the outer wall of the ring body is fixedly connected to the inner wall of the housing. The first motor is installed through the first base. When the first motor is started, the drive gear rotates under the action of the output shaft of the first motor. Through the meshing of the drive gear and the gear ring, and with the cooperation of the ring body, the gear ring can rotate. In turn, the rotating cavity can be rotated by the convex rod, so that the lateral position of the correction roller can be adjusted by the adjusting plate. By controlling the first motor to rotate forward and reverse, the adjusting plate can drive the correction roller to swing left and right to change the film path. The first motor is a self-locking motor. The shell opening of the housing faces upward, and the convex rod is located inside the shell opening of the housing to avoid the housing obstructing the movement of the convex rod when it rotates with the gear ring.

[0006] Preferably, a second base is provided on the side wall of the second motor, and the second base is fixedly connected to the inner wall of the rotating cavity. A first support plate is rotatably connected to the side wall of the horizontal shaft, and the bottom surface of the first support plate is fixedly connected to the inner bottom wall of the rotating cavity. The second motor is installed through the second base. When the second motor is started, the worm gear rotates under the action of the output shaft of the second motor. Through the meshing of the worm gear and the worm wheel, the horizontal shaft can be rotated. The first support plate is used to support the rotation of the horizontal shaft. When the horizontal shaft rotates, it can drive the movable plate to rotate, and then the adjusting plate can drive the correction roller. Angle adjustments are made to ensure the film path is horizontal, preventing the film from being transported and wound at an angle, thus avoiding wrinkling during winding. A slot is provided through the top surface of the rotating cavity, and the movable plate is located within the slot and cooperates with the slot. The slot allows the movable plate to move, so that the rotating cavity does not affect the movement of the movable plate when the position of the adjusting plate is adjusted. The roller shaft of the correction roller is rotatably connected to a second support plate, and the side wall of the second support plate is fixedly connected to the side wall of the adjusting plate. The second support plate is used to support the rotation of the correction roller to reduce the coefficient of friction.

[0007] Compared with the prior art, the advantages of this utility model are as follows: the setting of the correction roller can swing and adjust the angle to change the film offset and tilt. Moreover, the correction action is continuous and gradual during correction, avoiding rigid pulling and effectively preventing wrinkling, stretching or damage of the film. It is suitable for high-quality food and drug packaging films, and the overall structure is compact and easy to maintain. Attached Figure Description

[0008] 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.

[0009] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0010] Figure 2 This is a schematic diagram of the correction component structure of this utility model.

[0011] Figure 3 This is an enlarged view of section A of this utility model.

[0012] In the diagram: 1. Base plate; 2. Pad; 3. Correction assembly; 4. Pay-off machine; 5. Rewinder; 6. Auxiliary roller; 7. Housing; 8. Rotating cavity; 9. Ring; 10. Gear ring; 11. Protruding rod; 12. First motor; 13. First base; 14. Drive gear; 15. Second motor; 16. Second base; 17. Worm gear; 18. Horizontal shaft; 19. Worm wheel; 20. First support plate; 21. Movable plate; 22. Groove; 23. Adjusting plate; 24. Correction roller; 25. Second support plate. Detailed Implementation

[0013] 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.

[0014] Example: Figure 1-3As shown, this utility model provides a correction structure for a multilayer composite film for food and pharmaceutical use, including a correction component 3. The correction component 3 includes a housing 7, with a toothed ring 10 rotatably mounted inside the housing 7. A first motor 12 is mounted inside the housing 7 and on one side of the toothed ring 10. A drive gear 14 is fixedly connected to the output shaft end of the first motor 12. The drive gear 14 corresponds to and meshes with the toothed ring 10. A protruding rod 11 is fixedly connected to the top surface of the toothed ring 10. A rotating cavity 8 is rotatably connected to the top surface of the housing 7. The protruding rod 11... The top end is fixedly connected to the bottom surface of the rotating cavity 8. A second motor 15 is installed inside the rotating cavity 8. A worm gear 17 is fixedly connected to the output shaft end of the second motor 15. A horizontal shaft 18 is rotatably connected inside the rotating cavity 8. A worm wheel 19 is fixedly connected to the middle of the side wall of the horizontal shaft 18. The worm gear 17 and the worm wheel 19 correspond to and mesh with each other. Movable plates 21 are fixedly connected to both ends of the side wall of the horizontal shaft 18. An adjusting plate 23 is fixedly connected to the top surface of the movable plate 21. Correcting rollers 24 are rotatably provided on both sides above the adjusting plate 23.

[0015] The first motor 12 has a first base 13 on its side wall. The side wall of the first base 13 is fixedly connected to the inner wall of the housing 7. The outer wall of the toothed ring 10 is rotatably connected to a ring body 9. The outer wall of the ring body 9 is fixedly connected to the inner wall of the housing 7.

[0016] By adopting the above technical solution, the first motor 12 is installed on the first base 13. When the first motor 12 is started, the drive gear 14 rotates under the action of the output shaft of the first motor 12. Through the meshing of the drive gear 14 and the gear ring 10, and with the cooperation of the ring body 9, the gear ring 10 can rotate. In turn, the convex rod 11 drives the rotating cavity 8 to rotate, so that the adjusting plate 23 can adjust the lateral position of the correction roller 24. By controlling the first motor 12 to rotate forward and reverse, the adjusting plate 23 can drive the correction roller 24 to swing left and right to change the film path. The first motor 12 is a self-locking motor.

[0017] The opening of the housing 7 faces upward, and the protruding rod 11 is located inside the opening of the housing 7.

[0018] By adopting the above technical solution, the protruding rod 11 is located inside the opening of the housing 7, so as to avoid the housing 7 from obstructing the movement of the protruding rod 11 when it rotates with the toothed ring 10.

[0019] The second motor 15 has a second base 16 on its side wall. The second base 16 is fixedly connected to the inner wall of the rotating cavity 8. The side wall of the horizontal shaft 18 is rotatably connected to a first support plate 20. The bottom surface of the first support plate 20 is fixedly connected to the inner bottom wall of the rotating cavity 8.

[0020] By adopting the above technical solution, the second motor 15 is installed through the second base 16. When the second motor 15 is started, the worm gear 17 rotates under the action of the output shaft of the second motor 15. Through the meshing of the worm gear 17 and the worm wheel 19, the horizontal shaft 18 can be rotated. The first support plate 20 is used to support the rotation of the horizontal shaft 18. When the horizontal shaft 18 rotates, it can drive the movable plate 21 to rotate. Then, the angle of the correction roller 24 can be adjusted by the adjustment plate 23, so that the film path is horizontal, avoiding the film from being transported and wound at an incline, and thus avoiding wrinkling during winding.

[0021] A slot 22 is provided through the top surface of the rotating cavity 8, and the movable plate 21 is located inside the slot 22 and cooperates with the slot 22.

[0022] By adopting the above technical solutions, such as Figure 2 as well as Figure 3 As shown, the slot 22 is used to move the movable plate 21 so as to prevent the rotating cavity 8 from affecting the movement of the movable plate 21 when the position of the adjusting plate 23 is adjusted.

[0023] The roller shaft of the correction roller 24 is rotatably connected to the second support plate 25, and the side wall of the second support plate 25 is fixedly connected to the side wall of the adjusting plate 23.

[0024] By adopting the above technical solution, the second support plate 25 is used to support the rotation of the correction roller 24 to reduce the coefficient of friction.

[0025] A base plate 1 is provided below the correction component 3.

[0026] By adopting the above technical solutions, such as Figure 1As shown, the base plate 1 includes a platform 2, and the bottom surface of the housing 7 is fixedly connected to the top surface of the platform 2. A winding machine 4 is provided on one side of the web-aligning assembly 3, and a winding machine 5 is provided on the other side. The winding machine 4 is used to unwind the multilayer composite film roll, and the winding machine 5 is used to rewind the unwound multilayer composite film. Auxiliary rollers 6 are provided on both sides of the web-aligning assembly 3 and between the winding machine 4 and the winding machine 5. The auxiliary rollers 6 are used to assist in conveying the multilayer composite film. A photoelectric sensor and controller are provided on the side of the web-aligning assembly 3 facing the winding machine 5 to detect the edge position of the film in real time and generate position information. To provide guidance for corrective action, the photoelectric sensor can be a KEYENCE-FU series model, and the controller can be a MITSUBISHI-MPC series model. When the film is running normally, its edge just blocks part of the light beam, and the photoelectric sensor outputs a stable signal to the PLC. If the film deviates to the right, the amount of light beam blocked decreases, and the signal output by the photoelectric sensor changes. After receiving this change signal, the PLC calculates through its internal algorithm and immediately sends a command to the first motor 12 to adjust the position of the corrective roller 24, thereby changing the film path and avoiding conveying deviation.

[0027] Working principle: When this utility model is in use, the multi-layer composite film roll is unwound by the unwinding machine 4 and rewound by the winding machine 5. The unwound multi-layer composite film roll must pass through the auxiliary roller 6 and the correction component 3. When the first motor 12 is started, the drive gear 14 rotates under the action of the output shaft of the first motor 12. Through the meshing of the drive gear 14 and the gear ring 10, and with the cooperation of the ring body 9, the gear ring 10 can rotate. In turn, the convex rod 11 drives the rotating cavity 8 to rotate, so that the adjusting plate 23 can adjust the lateral position of the correction roller 24. By controlling the first motor 12 to rotate forward and reverse, the adjusting plate 23 can drive the correction roller 24 to swing left and right to change the film path and avoid conveying deviation. When the second motor 15 is started, the worm gear 17 rotates under the action of the output shaft of the second motor 15. Through the meshing of the worm gear 17 and the worm wheel 19, the horizontal shaft 18 can be rotated. The first support plate 20 is used to support the rotation of the horizontal shaft 18. When the horizontal shaft 18 rotates, it can drive the movable plate 21 to rotate. Then, the angle of the correction roller 24 can be adjusted by the adjustment plate 23 to make the film path horizontal, so as to avoid the film being transported and wound at an angle, and thus avoid wrinkling during winding.

[0028] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0029] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A correction structure of a multi-layer composite film for food and pharmaceutical products, comprising a correction assembly (3), characterized in that: The correction assembly (3) includes a housing (7), inside which a gear ring (10) is rotatably provided. Inside the housing (7) and on one side of the gear ring (10), a first motor (12) is provided. The output shaft of the first motor (12) is fixedly connected to a drive gear (14), which corresponds to and meshes with the gear ring (10). A protruding rod (11) is fixedly connected to the top surface of the gear ring (10). A rotating cavity (8) is rotatably connected to the top surface of the housing (7). The top end of the protruding rod (11) is fixedly connected to the bottom surface of the rotating cavity (8). A second motor (15) is installed inside the rotating cavity (8). A worm gear (17) is fixedly connected to the output shaft end of the second motor (15). A horizontal shaft (18) is rotatably connected inside the rotating cavity (8). A worm wheel (19) is fixedly connected to the middle of the side wall of the horizontal shaft (18). The worm gear (17) and the worm wheel (19) correspond to and mesh with each other. Movable plates (21) are fixedly connected to both ends of the side wall of the horizontal shaft (18). An adjusting plate (23) is fixedly connected to the top surface of the movable plate (21). Correcting rollers (24) are rotatably provided on both sides above the adjusting plate (23).

2. The correction structure of a multilayer composite film for food and pharmaceutical use as described in claim 1, characterized in that, The first motor (12) has a first base (13) on its side wall, and the side wall of the first base (13) is fixedly connected to the inner wall of the housing (7).

3. The correction structure of a multilayer composite film for food and pharmaceutical use as described in claim 1, characterized in that, The outer wall of the toothed ring (10) is rotatably connected to a ring body (9), and the outer wall of the ring body (9) is fixedly connected to the inner wall of the shell (7).

4. The correction structure of a multilayer composite film for food and pharmaceutical use as described in claim 1, characterized in that, The shell opening of the housing (7) faces upward, and the protruding rod (11) is located inside the shell opening of the housing (7).

5. A correction structure for a multi-layer composite film for food and pharmaceutical products as defined in claim 1, wherein The second motor (15) has a second base (16) on its side wall, and the second base (16) is fixedly connected to the inner wall of the rotating cavity (8).

6. The correction structure of a multilayer composite film for food and pharmaceutical use as described in claim 1, characterized in that, The side wall of the horizontal shaft (18) is rotatably connected to a first support plate (20), and the bottom surface of the first support plate (20) is fixedly connected to the inner bottom wall of the rotating cavity (8).

7. The correction structure of a multilayer composite film for food and pharmaceutical use as described in claim 1, characterized in that, The top surface of the rotating cavity (8) is provided with a slot (22), the movable plate (21) is located in the slot (22), and the movable plate (21) cooperates with the slot (22).

8. A correction structure for a multi-layer composite film for food and pharmaceutical products as defined in claim 1, wherein The roller shaft of the correction roller (24) is rotatably connected to a second support plate (25), and the side wall of the second support plate (25) is fixedly connected to the side wall of the adjustment plate (23).

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