A film laminating device for paper-plastic composite packaging bags

Abstract

The utility model discloses a kind of film coating equipment for paper-plastic composite packaging bag, it is related to packaging bag film coating technical field, including device main body, the inside of device main body is provided with the film coating mechanism for paper-plastic composite packaging bag film coating, the inside of device main body is provided with cleaning cylinder, when film coating mechanism uses, cleaning cylinder will clean film, the midpoint of cleaning cylinder is fixedly connected with fixed shaft, the both ends of fixed shaft are rotatably connected with lifting block, the right side of fixed shaft is fixedly connected with meshing gear, when film on film coating mechanism is used, start motor, motor drives connecting column and rotation gear to rotate, rotation gear drives meshing gear and fixed shaft to rotate, fixed shaft drives cleaning cylinder to rotate, cleaning cylinder rotates and can clean the surface of film, ensure that film and material are in full contact, to enhance the adhesion between the material to be coated and plastic film, reduce the phenomenon of packaging bag layering, improve product quality.

Description

Technical Field

[0001] This utility model relates to the field of packaging bag lamination technology, and in particular to a lamination device for paper-plastic composite packaging bags. Background Technology

[0002] The laminating equipment for paper-plastic composite packaging bags mainly consists of an unwinding mechanism, a coating device, and a rewinding mechanism. The unwinding mechanism smoothly releases the paper and plastic film rolls, featuring constant tension control to ensure the material maintains appropriate tension throughout the process, preventing wrinkles or stretching deformation. The coating device evenly applies adhesive to the paper or film surface. Through precise coating roller design and adhesive flow control system, it ensures consistent and uniform adhesive application, providing a good bonding foundation for subsequent lamination. The rewinding mechanism neatly winds up the paper and plastic material with stable winding tension, guaranteeing the quality and appearance of the finished roll. In practical applications, the laminating equipment for paper-plastic composite packaging bags typically requires the following technologies:

[0003] 1. Precision coating technology: High-precision coating rollers, such as comma doctor blade coating rollers or micro-gravure coating rollers, are used. Their surfaces are specially treated to precisely control the coating thickness and uniformity of the adhesive.

[0004] 2. High-efficiency drying technology: The drying system combines multiple drying methods, such as first using hot air circulation to initially dry the adhesive, and then using infrared drying or ultraviolet curing technology to deeply cure the adhesive;

[0005] 3. Stable composite technology: The composite mechanism uses a high-precision pressure roller with optimized surface hardness and roughness, which can apply pressure evenly and make the paper and plastic materials adhere tightly.

[0006] 4. Intelligent tension control technology: By installing tension sensors at the unwinding, coating, laminating and rewinding stages, the tension changes of the material are monitored in real time.

[0007] Currently, existing laminating equipment for paper-plastic composite packaging bags has many important functions. In terms of improving production efficiency, efficient drying technology and stable tension control technology reduce downtime and scrap rates during production, increase equipment operating speed and production continuity, meet the needs of large-scale production, and reduce production costs. In terms of material adaptability, it can adapt to different types of paper and plastic films, such as kraft paper, coated paper, BOPP film, PE film, etc., as well as different types of adhesives and coating amount requirements. This provides technical support for the diversified production of paper-plastic composite packaging bags, broadens the application range of the equipment, and promotes the development of the packaging industry.

[0008] Currently, an existing laminating machine for paper-plastic composite packaging bags (such as patent number: CN221272007U) discloses a laminating machine for paper-plastic composite packaging bags, including a machine body. A film mounting device is threadedly connected to the inner surface of the machine body. A production positioning device is located below the film mounting device, and a laminating device is located in front of the production positioning device. A discharge mechanism is fixedly connected to the outer surface of the machine body. This utility model relates to the technical field of laminating machines. This device, by setting up a film mounting device and a production positioning device, with a guide rod slidably connected to the machine body to prevent the baffle from tilting, rotates a knob to drive a fixed block to rotate, pushing the baffle to move. The mounting plate is unscrewed, the film is placed in, and then the mounting plate is tightened. A spring pushes the baffle to press the film. The sliding of the cylinder shaft and the sliding shaft prevents the baffle from tilting. This solves the problem that traditional equipment often can only install one size of film, making it impossible to select the film according to the product size, resulting in film waste.

[0009] However, the above method has a significant hardware structural problem: dust may adhere to the film during placement. Therefore, during lamination, this dust may hinder the tight adhesion between the film and the material, reducing adhesion and causing the packaging bag to easily delaminate, thus lowering the product quality. This application proposes a solution to this problem: a cleaning mechanism that effectively removes dust from the film surface, ensuring full contact between the film and the material. This enhances the adhesion between the material to be laminated and the plastic film, reduces packaging bag delamination, and improves product quality. Utility Model Content

[0010] To address the shortcomings of existing technologies, this utility model provides a laminating device for paper-plastic composite packaging bags, which solves the technical problem that dust may adhere to the film during placement, thus preventing the film from adhering tightly to the material, reducing adhesion, causing the packaging bag to easily delaminate, and reducing the production quality of the finished product.

[0011] To achieve the above objectives, this utility model provides the following technical solution:

[0012] A laminating device for paper-plastic composite packaging bags includes a main body with a laminating mechanism inside for laminating the paper-plastic composite packaging bags. A cleaning roller is also located inside the main body. When the laminating mechanism is in use, the cleaning roller cleans the film. A fixed shaft is fixedly connected to the midpoint of the cleaning roller, and lifting blocks are rotatably connected to both ends of the fixed shaft. A meshing gear is fixedly connected to the right side of the fixed shaft, and a rotating gear meshes with the side end of the meshing gear. When the rotating gear rotates, it drives the meshing gear to rotate, which in turn drives the fixed shaft and the cleaning roller to rotate.

[0013] Preferably, a connecting column is fixedly connected to the center point of the rotating gear, and the side surface of the connecting column is rotatably connected to the lifting block on the right side.

[0014] Preferably, a U-shaped fixing plate is fixedly connected to one end of the lifting block on the right side, and a motor is fixedly connected to the side surface of the U-shaped fixing plate.

[0015] Preferably, the motor's output port passes through the U-shaped fixing plate and is fixedly connected to the connecting column.

[0016] Preferably, a connecting rod is fitted on the upper end of the lifting block on the left side, and both the upper and lower ends of the connecting rod are rotatably connected to the inner wall of the main body of the device.

[0017] Preferably, the lifting block on the right side has a threaded groove, and a threaded rod is threadedly connected to the lifting block on the right side through the threaded groove. Both the upper and lower ends of the threaded rod are rotatably connected to the inner wall of the main body of the device.

[0018] Preferably, a knob is provided at the upper end of the device body, and the lower end of the knob passes through the device body and is fixedly connected to the threaded rod.

[0019] Preferably, a discharge mechanism is provided at the side end of the main body of the device.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. When the film on the laminating mechanism is used, the motor is started. The motor drives the connecting column and the rotating gear to rotate. The rotating gear drives the meshing gear and the fixed shaft to rotate. The fixed shaft drives the cleaning roller to rotate. When the cleaning roller rotates, it cleans the surface of the film to ensure that the film and the material are in full contact, thereby enhancing the adhesion between the material to be laminated and the plastic film, reducing the phenomenon of delamination of the packaging bag, and improving product quality.

[0022] 2. Rotate the knob, which will drive the threaded rod to rotate. When the threaded rod rotates, the lifting block on the right will move vertically, while the lifting block on the left will move along the connecting rod. This achieves the purpose of controlling the lifting of the cleaning roller. By controlling the height of the cleaning roller, the cleaning roller can always be in contact with the film, thus improving the efficiency of dust removal. Attached Figure Description

[0023] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0024] Figure 1 This is a structural diagram of the entire utility model;

[0025] Figure 2This is a structural diagram of the cleaning roller of this utility model;

[0026] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A;

[0027] Figure 4 This is a structural diagram of the threaded rod of this utility model.

[0028] Legend: 11. Main body of the device; 12. Film covering mechanism; 13. Discharge mechanism; 14. Threaded rod; 15. Connecting rod; 16. Cleaning roller; 17. Lifting block; 18. Threaded groove; 19. Meshing gear; 20. Rotating gear; 21. Connecting column; 22. U-shaped fixing plate; 23. Motor; 24. Fixed shaft; 25. Knob. Detailed Implementation

[0029] This application provides a laminating device for paper-plastic composite packaging bags, effectively solving the technical problem that dust may adhere to the film during placement, thus hindering the tight adhesion between the film and the material, reducing adhesion, and causing the packaging bag to easily delaminate, thereby reducing the production quality of the finished product. When the film on the laminating mechanism is used, the motor is started, which drives the connecting column and rotating gear to rotate. The rotating gear drives the meshing gear and fixed shaft to rotate, and the fixed shaft drives the cleaning roller to rotate. When the cleaning roller rotates, it cleans the surface of the film, ensuring full contact between the film and the material, thereby enhancing the adhesion between the material to be laminated and the plastic film, reducing the phenomenon of packaging bag delamination, and improving product quality.

[0030] Example

[0031] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the technical solution in this application embodiment effectively solves the technical problem that dust may adhere to the film during placement, thus preventing the film from adhering tightly to the material during lamination, reducing adhesion, causing the packaging bag to easily delaminate, and reducing the production quality of the finished product. The overall idea is as follows:

[0032] To address the problems existing in the prior art, this utility model provides a laminating device for paper-plastic composite packaging bags, including a main body 11. The main body 11 contains a laminating mechanism 12 for laminating the paper-plastic composite packaging bags. A cleaning roller 16 is also located inside the main body 11. When the laminating mechanism 12 is in use, the cleaning roller 16 cleans the film. A fixed shaft 24 is fixedly connected to the midpoint of the cleaning roller 16. Lifting blocks 17 are rotatably connected to both ends of the fixed shaft 24. A meshing gear 19 is fixedly connected to the right side of the fixed shaft 24. A rotating gear 20 is engaged on the side end of the 19. When the rotating gear 20 rotates, it drives the meshing gear 19 to rotate. The meshing gear 19 drives the fixed shaft 24 and the cleaning roller 16 to rotate. A connecting column 21 is fixedly connected to the center point of the rotating gear 20. The side surface of the connecting column 21 is rotatably connected to the lifting block 17 on the right side. When the film on the film coating mechanism 12 is used, the motor 23 is started. The motor 23 drives the connecting column 21 and the rotating gear 20 to rotate. The rotating gear 20 drives the meshing gear 19 and the fixed shaft 24 to rotate. The fixed shaft 24 drives the cleaning roller 16 to rotate.

[0033] One end of the lifting block 17 on the right is fixedly connected to a U-shaped fixing plate 22. A motor 23 is fixedly connected to the side surface of the U-shaped fixing plate 22. The output port of the motor 23 passes through the U-shaped fixing plate 22 and is fixedly connected to the connecting column 21. A connecting rod 15 is sleeved on the upper side of the lifting block 17 on the left. Both the upper and lower ends of the connecting rod 15 are rotatably connected to the inner wall of the main body 11 of the device. When the cleaning roller 16 rotates, it will clean the surface of the film to ensure that the film and the material are in full contact, thereby enhancing the adhesion between the material to be coated and the plastic film, reducing the phenomenon of packaging bag delamination, and improving product quality.

[0034] The right-side lifting block 17 has a threaded groove 18, and a threaded rod 14 is threadedly connected to the right-side lifting block 17 through the threaded groove 18. Both the upper and lower ends of the threaded rod 14 are rotatably connected to the inner wall of the device body 11. A knob 25 is provided at the upper end of the device body 11, and the lower end of the knob 25 passes through the device body 11 and is fixedly connected to the threaded rod 14. A discharge mechanism 13 is provided at the side end of the device body 11. Rotating the knob 25 will drive the threaded rod 14 to rotate. When the threaded rod 14 rotates, the right-side lifting block 17 will move vertically, and the left-side lifting block 17 will also move along the connecting rod 15. Thus, the purpose of controlling the lifting of the cleaning roller 16 is achieved. By controlling the height of the cleaning roller 16, the cleaning roller 16 can always be in contact with the film, which improves the efficiency of dust removal.

[0035] The main body of the device 11 serves as the core architecture of the entire coating equipment, providing the installation foundation and support for various internal components such as the coating mechanism 12 and the cleaning roller 16, and supporting the operation of the entire coating process.

[0036] Laminating unit 12: Responsible for the basic operation of laminating paper-plastic composite packaging bags, covering the material to be laminated with plastic film, which is the key part to realize the laminating function;

[0037] Discharge mechanism 13: Ensures that the paper-plastic composite packaging bag after lamination can be smoothly output from the side of the main body 11 of the device, ensuring the continuity of the production process and avoiding product accumulation and jamming;

[0038] Threaded rod 14: It is threadedly nested in the threaded groove 18 of the right lifting block 17. By rotating, the rotational motion of the knob 25 is converted into the vertical linear motion of the right lifting block 17, thereby participating in the control of the lifting of the cleaning roller 16.

[0039] Connecting rod 15: Provides guide support for the left lifting block 17, so that it can move along the connecting rod 15 in coordination when the right lifting block 17 moves up and down, ensuring that the cleaning roller 16 moves up and down smoothly;

[0040] Cleaning roller 16: Supported by fixed shaft 24, it rotates at high speed under the drive of components such as motor 23, and precisely cleans the dust and impurities on the surface of the coating material, creating an ideal bonding base for the coating and improving the bonding effect;

[0041] Lifting block 17: Both ends are connected to the fixed shaft 24 and related components of the device body 11, such as the connecting rod 15 and the threaded rod 14. The fixed shaft 24 and the cleaning roller 16 are lifted and lowered by vertical movement to adapt to the cleaning needs of films of different thicknesses.

[0042] Threaded groove 18: It is opened on the right lifting block 17 and cooperates with the threaded rod 14 to realize precise threaded transmission, converting rotational motion into linear displacement and assisting in the height adjustment of the cleaning roller 16.

[0043] Meshing gear 19: Fixed on the right side of the fixed shaft 24, meshing with the rotating gear 20, receiving the power of the rotating gear 20 and transmitting it to the fixed shaft 24, driving the cleaning roller 16 to rotate, ensuring stable power transmission;

[0044] Rotary gear 20: Driven to rotate by motor 23, it transmits the power of motor 23 through meshing with meshing gear 19, thereby starting the cleaning action of cleaning roller 16;

[0045] Connecting column 21: connects the rotating gear 20 and the motor 23, transmits the torque output by the motor 23, and provides rotational support for the rotating gear 20 to ensure the stability of the power transmission path;

[0046] U-shaped fixing plate 22: Fixed to one end of the right lifting block 17, providing an installation position for the motor 23, ensuring the stability of the motor 23 during the movement of the lifting block 17, so that it can continue to work normally;

[0047] Motor 23: As a power source, after starting, it drives the connecting column 21 and the rotating gear 20 to rotate, providing driving force for the operation of the entire cleaning drum 16. It is a key component for realizing automated cleaning.

[0048] Fixed shaft 24: passes through the midpoint of the cleaning roller 16 and is fixed therein. Both ends are rotatably connected to the lifting block 17. It supports the stable rotation of the cleaning roller 16, transmits power from the meshing gear 19, and ensures the working state of the cleaning roller 16.

[0049] Knob 25: Located at the upper end of the main body 11 of the device, it is fixedly connected to the threaded rod 14. The operator can manually control the rotation of the threaded rod 14 by rotating the knob 25, thereby adjusting the height of the cleaning roller 16.

[0050] Working principle:

[0051] When the film on the laminating mechanism 12 is used, the motor 23 is started. The motor 23 drives the connecting column 21 and the rotating gear 20 to rotate. The rotating gear 20 drives the meshing gear 19 and the fixed shaft 24 to rotate. The fixed shaft 24 drives the cleaning roller 16 to rotate. When the cleaning roller 16 rotates, it cleans the surface of the film to ensure that the film and the material are in full contact, thereby enhancing the adhesion between the material to be laminated and the plastic film, reducing the phenomenon of packaging bag delamination, and improving product quality. Rotating the knob 25 will drive the threaded rod 14 to rotate. When the threaded rod 14 rotates, the lifting block 17 on the right side will move vertically, and the lifting block 17 on the left side will also move along the connecting rod 15. Thus, the purpose of controlling the lifting of the cleaning roller 16 is achieved. By controlling the height of the cleaning roller 16, the cleaning roller 16 can always be in contact with the film, improving the efficiency of dust removal.

[0052] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A laminating device for paper-plastic composite packaging bags, comprising a main body (11), wherein the main body (11) is internally provided with a laminating mechanism (12) for laminating paper-plastic composite packaging bags, characterized in that, The device body (11) is equipped with a cleaning roller (16). When the film covering mechanism (12) is used, the cleaning roller (16) will clean the film. The cleaning roller (16) is fixedly connected to a fixed shaft (24) at the midpoint. The fixed shaft (24) is rotatably connected to lifting blocks (17) at both ends. The right side of the fixed shaft (24) is fixedly connected to a meshing gear (19). The side end of the meshing gear (19) is meshed with a rotating gear (20). When the rotating gear (20) rotates, it will drive the meshing gear (19) to rotate. The meshing gear (19) will drive the fixed shaft (24) and the cleaning roller (16) to rotate.

2. The laminating equipment for paper-plastic composite packaging bags as described in claim 1, characterized in that: A connecting column (21) is fixedly connected to the center point of the rotating gear (20); The side surface of the connecting column (21) is rotatably connected to the lifting block (17) on the right side.

3. The laminating equipment for paper-plastic composite packaging bags as described in claim 2, characterized in that: A U-shaped fixing plate (22) is fixedly connected to one end of the lifting block (17) on the right side. The side surface of the U-shaped fixing plate (22) is fixedly connected to a motor (23).

4. The laminating equipment for paper-plastic composite packaging bags as described in claim 3, characterized in that: The output port of the motor (23) is fixedly connected to the connecting column (21) through the U-shaped fixing plate (22).

5. The laminating equipment for paper-plastic composite packaging bags as described in claim 4, characterized in that: A connecting rod (15) is sleeved on the upper end of the lifting block (17) on the left side. The upper and lower ends of the connecting rod (15) are rotatably connected to the inner wall of the main body (11) of the device.

6. The laminating equipment for paper-plastic composite packaging bags as described in claim 5, characterized in that: The lifting block (17) on the right side has a threaded groove (18), and the lifting block (17) on the right side is threadedly connected to a threaded rod (14) through the threaded groove (18). The upper and lower ends of the threaded rod (14) are rotatably connected to the inner wall of the main body (11) of the device.

7. The laminating equipment for paper-plastic composite packaging bags as described in claim 6, characterized in that: A knob (25) is provided at the upper end of the main body (11) of the device. The lower end of the knob (25) passes through the device body (11) and is fixedly connected to the threaded rod (14).

8. The laminating equipment for paper-plastic composite packaging bags as described in claim 7, characterized in that: The device body (11) is provided with a discharge mechanism (13) at its side end.

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