A fully automatic film laminating machine capable of dynamically adjusting the inter-roller friction

Abstract

The application relates to a full-automatic film laminating machine capable of dynamically adjusting inter-roller friction, relates to the research and development and improvement technical field of mechanical equipment related to packaging printing, image and text and business framing, and comprises a rack, rubber rollers arranged on the rack, stainless steel rollers, a driving assembly, a pressure adjusting assembly, a surface texture adjusting module and a control assembly. Two servo motors, rubber rollers, stainless steel rollers and shaft couplings are arranged, when the equipment is operated, the two servo motors in the driving assembly are respectively connected with the rubber rollers and the stainless steel rollers in a transmission mode through detachable shaft couplings, and the rubber rollers and the stainless steel rollers are synchronously driven to rotate; compared with traditional single-roller driving, the design of synchronous rotation of the double driving rollers can increase the inter-roller friction, avoids relative sliding of the film and the base material during the transmission process, ensures that the film and the base material are always synchronously transmitted, effectively reduces the transmission deviation problem caused by sliding, makes the film laminating operation more uniform, and significantly improves the appearance quality and consistency of the film laminated product.

Description

Technical Field

[0001] This application relates to the field of mechanical equipment research and development and improvement technology related to packaging printing, graphic imaging and business bookbinding, and in particular to a fully automatic laminating machine that can dynamically adjust the friction between rollers. Background Technology

[0002] Lamination technology is widely used in packaging printing, graphic imaging, and business bookbinding. Its core principle is to bond a film to a substrate using a laminating machine to enhance the product's appearance, texture, and durability. However, traditional laminating machines suffer from several technical shortcomings in practical applications: First, the drive method is often unreasonable, employing a single-roller drive mode where only the heated or rubber roller rotates actively, while the other roller rotates passively. This method easily leads to slippage between the film and the substrate, causing insufficient friction and resulting in transmission misalignment, ultimately leading to uneven lamination and affecting product quality. Second, the pressure adjustment method is rigid, relying on mechanical springs or simple air pressure to adjust the pressure between the rollers. This cannot be flexibly adjusted according to the tension requirements of different substrate materials (such as aluminum foil and PVC film), easily resulting in overstretching or loosening of the film. Third, surface compatibility and fault handling are insufficient. Traditional laminating machines are not designed with adaptive structures to accommodate the differences in friction coefficients of different film materials, and cannot adapt to different films by adjusting surface roughness. Poor film-roller compatibility easily affects friction stability. Therefore, this paper proposes a fully automatic laminating machine capable of dynamically adjusting the friction between the rollers. Utility Model Content

[0003] The purpose of this application is to provide a fully automatic laminating machine that can dynamically adjust the friction between rollers, solve the problems of transmission deviation and uneven lamination in traditional laminating machines, and ensure synchronous transmission of film and substrate; realize real-time adjustment of roller pressure to adapt to substrates of different thicknesses; and improve the adaptability to films of different materials by replacing micro-textured roller sleeves, thereby improving the overall lamination quality and equipment versatility.

[0004] This application provides a fully automatic coating machine capable of dynamically adjusting the friction between rollers, employing the following technical solution: It includes a frame, a rubber roller, a stainless steel roller, a drive assembly, a pressure adjustment assembly, a surface texture adjustment module, and a control assembly, all mounted on the frame. The rubber roller and stainless steel roller are arranged opposite each other. The drive assembly includes two servo motors for driving the rubber roller and stainless steel roller to rotate synchronously, with the two servo motors respectively connected to the rubber roller and the stainless steel roller. The pressure adjustment assembly includes a pressure sensor array for real-time monitoring of the contact pressure between the rubber roller and the stainless steel roller, and a pressure drive component for adjusting the roller spacing between them. The pressure sensor array is embedded in the surface of the rubber roller. The pressure drive component is connected to the stainless steel roller. The surface texture adjustment module includes a replaceable micro-textured roller sleeve, with arc-shaped lower connecting plates fixedly connected to both ends of the micro-textured roller sleeve. One end of the arc-shaped lower connecting plate is hinged to an arc-shaped upper connecting plate. The ends of the arc-shaped lower and upper connecting plates away from the hinge are fixedly connected by bolts and nuts. The arc-shaped lower and upper connecting plates form a space inside to accommodate the rubber roller. By adopting the above technical solutions, the frame provides a stable installation foundation for components such as rubber rollers and stainless steel rollers, ensuring the overall structural stability of the equipment. The rubber rollers and stainless steel rollers are arranged opposite each other and driven synchronously by dual servo motors, replacing the traditional single-roller drive, significantly improving the friction between the rollers and preventing the film from sliding on the substrate. A pressure sensor array is embedded in the surface of the rubber rollers to monitor the pressure in real time, and the pressure drive component connects to the stainless steel rollers to adjust the roller spacing, realizing dynamic pressure control. The surface texture adjustment module fixes the micro-textured roller sleeve through the arc-shaped lower connecting plate, the arc-shaped upper connecting plate, and bolts and nuts, making it easy to replace to adapt to different films. This solves the problems of transmission offset and uneven film coating in traditional laminating machines, ensuring synchronous transmission of film and substrate. It realizes real-time adjustment of inter-roller pressure to adapt to substrates of different thicknesses. The replaceable micro-textured roller sleeve improves the adaptability to films of different materials, improving the overall lamination quality and equipment versatility.

[0005] Preferably, the control component includes a controller and a thin film material database; the controller is electrically connected to the drive component and the pressure regulating component respectively, and is used to receive pressure signals transmitted by the pressure sensor array and control the operation of the drive component and the pressure regulating component; the thin film material database stores friction coefficient information of thin films of different materials, and is used to provide data support for the controller to set the target friction force.

[0006] By adopting the above technical solution, the controller of the control component connects the drive component and the pressure regulation component. After receiving the pressure signal from the pressure sensor array, it accurately controls the speed of the servo motor and the operation of the pressure drive component. The friction coefficient information stored in the film material database provides data support for the controller to set the target friction force. This enables automated control of the equipment without frequent manual intervention, reducing the difficulty of operation. Setting the target friction force based on the film material database ensures that the friction force is matched when coating films of different materials, reducing errors in manual judgment and improving coating consistency and efficiency.

[0007] Preferably, the pressure driving component is a hydraulic system or a pneumatic system, which adjusts the positive pressure between the rubber roller and the stainless steel roller by adjusting the roller spacing, thereby adjusting the friction between the rollers.

[0008] By adopting the above technical solution, the pressure driving component uses a hydraulic system or a pneumatic system. By pushing the stainless steel roller to move and adjusting the roller spacing with the rubber roller, the positive pressure between the two rollers is changed. Combined with the friction formula, the friction force between the rollers is adjusted. The hydraulic or pneumatic system has high adjustment accuracy and sensitive response. Compared with traditional mechanical springs or simple pneumatic adjustment, it can more accurately adapt to the pressure requirements of different substrates, avoid excessive film stretching or loosening, and improve the film coating adhesion.

[0009] Preferably, both the rubber roller and the stainless steel roller are rotatably and detachably connected inside the frame, and the rubber roller and the stainless steel roller are detachably connected to the two servo motors.

[0010] By adopting the above technical solution, the rubber roller and stainless steel roller are connected to the frame in a rotatable and detachable manner, and are also detachably connected to the servo motor, which facilitates the disassembly of the roller or motor in the future; reduces the difficulty of equipment maintenance, and can be quickly disassembled and replaced when the rubber roller or stainless steel roller is worn or the servo motor fails, reducing downtime for maintenance and lowering equipment maintenance costs.

[0011] Preferably, the inner wall of the micro-textured roller sleeve is fitted to the outer wall of the rubber roller, and the surface of the micro-textured roller sleeve is provided with textured structures of different roughness to adapt to films of different materials.

[0012] By adopting the above technical solution, the inner wall of the micro-textured roller sleeve is attached to the outer wall of the rubber roller, ensuring that the roller sleeve and the roller body rotate synchronously; the texture structure with different surface roughness can be matched with the roller sleeve according to the film material; by replacing the micro-textured roller sleeve with different textures, it can be specifically matched with films with different friction coefficients, solving the adaptation limitations caused by the inability of traditional equipment to adjust surface roughness, expanding the application range of the equipment, and improving the coating effect of different films.

[0013] Preferably, the pressure sensor array is uniformly distributed along the axial direction of the rubber roller to comprehensively monitor the contact pressure at different locations between the rubber roller and the stainless steel roller.

[0014] By adopting the above technical solution, the pressure sensor array is evenly distributed along the axial direction of the rubber roller, which can simultaneously monitor the contact pressure at different positions of the rubber roller and the stainless steel roller, avoiding blind spots in local pressure monitoring; comprehensively grasp the pressure distribution between the two rollers, promptly detect local pressure unevenness, and adjust the pressure drive components through the controller to avoid insufficient film adhesion caused by local overheating or underpressure, thereby improving the overall film coating quality.

[0015] Preferably, a coupling is provided between the rubber roller, the stainless steel roller, and the two servo motors, and the coupling is used for transmission connection. The coupling is a detachable structure.

[0016] By adopting the above technical solution, the detachable coupling connects the rubber roller, stainless steel roller and servo motor to achieve stable power transmission, and no other parts need to be disassembled during disassembly; it simplifies the disassembly and assembly process of the rubber roller, stainless steel roller and servo motor, and is more convenient and efficient to maintain than the fixed transmission structure, reducing equipment disassembly and assembly wear and extending the service life of components.

[0017] Preferably, the surfaces of the bolts and nuts are provided with an anti-corrosion coating.

[0018] By adopting the above technical solution, the anti-corrosion coating on the surface of bolts and nuts can isolate corrosive media such as air and moisture, preventing bolts and nuts from rusting after long-term use; extending the service life of bolts and nuts, preventing the micro-textured roller sleeve from becoming unremovable due to rust, ensuring the long-term stable use of the surface texture adjustment module, and reducing the frequency and cost of component replacement.

[0019] In summary, this application includes at least one of the following beneficial technical effects: This fully automatic laminating machine, capable of dynamically adjusting inter-roller friction, utilizes two servo motors, a rubber roller, a stainless steel roller, and a coupling. During operation, the two servo motors in the drive assembly are connected to the rubber roller and stainless steel roller respectively via detachable couplings, driving them to rotate synchronously. Compared to traditional single-roller drives, the dual-drive synchronous rotation design increases inter-roller friction, preventing relative slippage between the film and substrate during transport. This ensures synchronized transport of the film and substrate, effectively reducing transport offset caused by slippage, resulting in more uniform lamination and significantly improving the appearance quality and consistency of the laminated product. A surface texture adjustment module allows for adaptation to different film materials. Loosening the bolts and nuts away from the hinge ends of the lower and upper arc-shaped connecting plates allows the removal of the micro-textured roller sleeve covering the rubber roller. After replacing the micro-textured roller sleeve with a corresponding roughness texture, the upper arc-shaped connecting plate is reclosed and secured with bolts and nuts, ensuring a tight fit between the inner wall of the micro-textured roller sleeve and the outer wall of the rubber roller. This allows for further adjustments based on the surface texture adjustment module. The micro-textured roller sleeve with the same roughness can adapt to films with different coefficients of friction, solving the film compatibility limitations of traditional laminators caused by the inability to adjust surface adaptability. This expands the equipment's applicability to different film materials and improves its versatility. By setting up pressure adjustment components, control components, rubber rollers, and stainless steel rollers, before lamination, the controller calls the current film's coefficient of friction information from the film material database and combines it with the initial contact pressure monitored by the pressure sensor array to set the target friction force. During lamination, the pressure sensor array transmits the contact pressure signals at different positions between the rubber roller and the stainless steel roller to the controller in real time. The controller calculates the real-time friction force and compares it with the target friction force. If there is a deviation, the controller controls the pressure drive component to adjust the position of the stainless steel roller, changing the roller spacing between the rubber roller and the stainless steel roller, thereby adjusting the positive pressure between the rollers. This achieves dynamic and precise adjustment of the roller pressure, avoiding the local overheating or underpressure problems caused by rigid pressure adjustment in traditional laminators. It ensures uniform pressure distribution between the rollers, improves the adhesion between the film and the substrate, and reduces quality problems such as film delamination and peeling. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this application; Figure 2 This is a schematic diagram of the structure of the rubber roller surface in this application; Figure 3 This is a schematic diagram of the side structure of the rubber roller and surface texture adjustment module of this application; Figure 4 This is a structural diagram showing the positions of the servo motor and coupling in this application; Figure 5 This is a schematic diagram of the controller and thin film material database of this application.

[0021] In the picture: 1. Frame; 2. Rubber roller; 3. Stainless steel roller; 4. Drive assembly; 41. Servo motor; 5. Pressure regulating assembly; 51. Pressure sensor array; 52. Pressure drive component; 6. Surface texture adjustment module; 61. Micro-textured roller sleeve; 62. Arc-shaped lower connecting plate; 63. Arc-shaped upper connecting plate; 64. Bolt; 65. Nut; 7. Control assembly; 71. Controller; 72. Thin film material database; 8. Coupling. Detailed Implementation

[0022] The following is in conjunction with the appendix Figure 1 -Appendix Figure 5 This application will be described in further detail below.

[0023] Example 1: A fully automatic laminating machine capable of dynamically adjusting the friction between rollers, referring to... Figure 1 , Figure 2 and Figure 3The system includes a frame 1, a rubber roller 2 and a stainless steel roller 3 mounted on the frame 1, a drive assembly 4, a pressure regulating assembly 5, a surface texture regulating module 6, and a control assembly 7. The rubber roller 2 and stainless steel roller 3 are positioned opposite each other. The drive assembly 4 includes two servo motors 41 for synchronously driving the rubber roller 2 and stainless steel roller 3, with each servo motor 41 connected to the rubber roller 2 and stainless steel roller 3 respectively. The pressure regulating assembly 5 includes a pressure sensor array 51 for real-time monitoring of the contact pressure between the rubber roller 2 and stainless steel roller 3, and a pressure drive component 52 for adjusting the roller spacing between the rubber roller 2 and stainless steel roller 3. The pressure sensor array 51 is embedded in the surface of the rubber roller 2. The pressure drive component 52 is connected to the stainless steel roller 3. The surface texture regulating module 6 includes a replaceable micro-textured roller sleeve 61. Arc-shaped lower connecting plates 62 are fixedly connected to both ends of the micro-textured roller sleeve 61. An arc-shaped upper connecting plate 63 is hinged to one end of the arc-shaped lower connecting plate 62. The ends of the arc-shaped lower connecting plate 62 and the arc-shaped upper connecting plate 63 away from the hinge are connected by bolts 64. The rubber roller 2 is fixedly connected to the nut 65. The space formed inside the arc-shaped lower connecting plate 62 and the arc-shaped upper connecting plate 63 is adapted to the rubber roller 2. The frame 1 provides a stable installation foundation for the rubber roller 2, stainless steel roller 3 and other components, ensuring the overall stability of the equipment structure. The rubber roller 2 and stainless steel roller 3 are set opposite each other and driven synchronously by dual servo motors 41, replacing the traditional single roller drive, greatly improving the friction between the rollers and preventing the film from sliding on the substrate. The pressure sensor array 51 is embedded in the surface of the rubber roller 2 to monitor the pressure in real time. The pressure drive component 52 is connected to the stainless steel roller 3 to adjust the roller spacing and realize dynamic pressure control. The surface texture adjustment module 6 fixes the micro-textured roller sleeve 61 through the arc-shaped lower connecting plate 62, the arc-shaped upper connecting plate 63 and bolts 64 and nuts 65, which is convenient to replace to adapt to different films. It solves the problems of transmission offset and uneven film coating in traditional laminating machines and ensures synchronous transmission of film and substrate. It realizes real-time adjustment of inter-roller pressure and adapts to substrates of different thicknesses. The replaceable micro-textured roller sleeve 61 improves the adaptability to films of different materials and improves the overall lamination quality and equipment versatility.

[0024] Reference Figure 1 , Figure 2 and Figure 5The control component 7 includes a controller 71 and a thin film material database 72. The controller 71 is electrically connected to the drive component 4 and the pressure regulating component 5, respectively, and is used to receive pressure signals transmitted by the pressure sensor array 51 and control the operation of the drive component 4 and the pressure regulating component 5. The thin film material database 72 stores friction coefficient information of different thin films, which provides data support for the controller 71 to set the target friction force. The pressure drive component 52 is a hydraulic system or a pneumatic system, which changes the normal pressure between the rubber roller 2 and the stainless steel roller 3 by adjusting the roller spacing, thereby adjusting the friction force between the rollers. The controller 71 of the control component 7 is connected to the drive component 4 and the pressure regulating component 5. After receiving the pressure signal from the pressure sensor array 51, it accurately controls the speed of the servo motor 41 and the operation of the pressure drive component 52. The friction coefficient information stored in the film material database 72 provides data support for the controller 71 to set the target friction force; it enables automated control of the equipment, eliminating the need for frequent manual intervention and reducing operational difficulty; setting the target friction force based on the film material database 72 ensures that the friction force is adapted when laminating films of different materials, reducing human judgment errors and improving lamination consistency and efficiency. The pressure drive component 52 adopts a hydraulic system or a pneumatic system, which adjusts the roller gap between the stainless steel roller 3 and the rubber roller 2 by pushing the stainless steel roller 3 to move, thereby changing the normal pressure between the two rollers, and realizing the adjustment of the friction force between the rollers by combining the friction force formula; the hydraulic or pneumatic system has high adjustment accuracy and sensitive response. Compared with traditional mechanical springs or simple pneumatic adjustment, it can more accurately adapt to the pressure requirements of different substrates, avoid excessive film stretching or loosening, and improve the lamination firmness.

[0025] Reference Figure 1 , Figure 2 and Figure 3 Both rubber roller 2 and stainless steel roller 3 are rotatably and detachably connected inside the frame 1. Rubber roller 2 and stainless steel roller 3 are detachably connected to two servo motors 41. The inner wall of the micro-textured roller sleeve 61 fits against the outer wall of the rubber roller 2, and the surface of the micro-textured roller sleeve 61 has a textured structure with different roughness to adapt to films of different materials. The rubber roller 2 and stainless steel roller 3 are rotatably and detachably connected to the frame 1 and to the servo motors 41, facilitating later disassembly of the rollers or motors; reducing equipment maintenance difficulty. When the stainless steel roller 3 is worn or the servo motor 41 fails, it can be quickly disassembled and replaced, reducing downtime and maintenance time and lowering equipment maintenance costs. The inner wall of the micro-textured roller sleeve 61 fits the outer wall of the rubber roller 2, ensuring that the roller sleeve and the roller body rotate synchronously. The textured structure of its surface with different roughness can be matched with the roller sleeve according to the film material. By replacing the micro-textured roller sleeve 61 with different textures, it can be specifically matched with films with different friction coefficients, solving the adaptation limitations caused by the inability of traditional equipment to adjust the surface roughness, expanding the applicability range of the equipment, and improving the coating effect of different films.

[0026] Reference Figure 1 , Figure 4 and Figure 5 The pressure sensor array 51 is evenly distributed along the axial direction of the rubber roller 2 to comprehensively monitor the contact pressure at different positions between the rubber roller 2 and the stainless steel roller 3. A coupling 8 is installed between the rubber roller 2, the stainless steel roller 3, and the two servo motors 41, and the coupling 8 is used for transmission. The coupling 8 is a detachable structure, and the surfaces of the bolts 64 and nuts 65 are coated with an anti-corrosion coating. The pressure sensor array 51, evenly distributed along the axial direction of the rubber roller 2, can synchronously monitor the contact pressure at different positions between the rubber roller 2 and the stainless steel roller 3, avoiding blind spots in local pressure monitoring; comprehensively understanding the pressure distribution between the two rollers, promptly detecting local pressure unevenness, and adjusting the pressure drive component 52 through the controller 71 to prevent coating adhesion problems caused by local overheating or underpressure. To address insufficient thickness and improve overall coating quality, a detachable coupling 8 connects the rubber roller 2, stainless steel roller 3, and servo motor 41, enabling stable power transmission without the need to disassemble other components. This simplifies the assembly and disassembly process of the rubber roller 2, stainless steel roller 3, and servo motor 41, making maintenance more convenient and efficient compared to a fixed transmission structure. It also reduces equipment disassembly and assembly wear, extends component lifespan, and provides an anti-corrosion coating on the surfaces of bolts 64 and nuts 65 to isolate them from corrosive media such as air and moisture, preventing rust after long-term use. This extends the service life of bolts 64 and nuts 65 and prevents the micro-textured roller sleeve 61 from becoming unremovable due to rust, ensuring the long-term stable use of the surface texture adjustment module 6 and reducing component replacement frequency and costs.

[0027] In this embodiment, by setting up two servo motors 41, a rubber roller 2, a stainless steel roller 3, and a coupling 8, when the equipment is running, the two servo motors 41 in the drive assembly 4 are respectively connected to the rubber roller 2 and the stainless steel roller 3 through the detachable coupling 8, driving the rubber roller 2 and the stainless steel roller 3 to rotate synchronously. Compared with the traditional single-roller drive, the design of synchronous rotation of the dual active rollers can increase the friction between the rollers and avoid relative slippage between the film and the substrate during the transmission process; ensuring that the film and the substrate are always transmitted synchronously, effectively reducing the transmission offset problem caused by slippage, and making the lamination operation more efficient. Uniformity significantly improves the appearance quality and consistency of coated products; by setting the surface texture adjustment module 6, when it is necessary to adapt to different film materials, loosen the bolts 64 and nuts 65 away from the hinge end of the arc-shaped lower connecting plate 62 and the arc-shaped upper connecting plate 63, open the arc-shaped upper connecting plate 63, and the micro-textured roller sleeve 61 fitted on the rubber roller 2 can be removed; after replacing the micro-textured roller sleeve 61 with a corresponding roughness texture structure, close the arc-shaped upper connecting plate 63 again and fix it with bolts 64 and nuts 65, so that the inner wall of the micro-textured roller sleeve 61 fits tightly with the outer wall of the rubber roller 2; by replacing different The textured roller sleeve 61 can adapt to films with different coefficients of friction, solving the film compatibility limitations of traditional laminating machines caused by the inability to adjust surface adaptability. This expands the equipment's applicability to films of different materials and improves its versatility. By setting up the pressure regulating component 5, control component 7, rubber roller 2, and stainless steel roller 3, before lamination, the controller 71 calls the current film's coefficient of friction information from the film material database 72, and combines this with the initial contact pressure monitored by the pressure sensor array 51 to set the target friction force. During lamination, the pressure sensor array 51 continuously adjusts the rubber roller's friction force. The contact pressure signals at different positions between roller 2 and stainless steel roller 3 are transmitted to controller 71. Controller 71 calculates the real-time friction force and compares it with the target friction force. If there is a deviation, controller 71 controls pressure drive component 52 to adjust the position of stainless steel roller 3, change the roller spacing between rubber roller 2 and stainless steel roller 3, and thus adjust the positive pressure between rollers. This achieves dynamic and precise adjustment of the pressure between rollers, avoiding the problem of local overheating or underpressure caused by rigid pressure adjustment in traditional laminating machines. It ensures uniform pressure distribution between rollers, improves the adhesion between film and substrate, and reduces quality problems such as film delamination and peeling.

[0028] The implementation principle of this application embodiment is as follows: First, the rubber roller 2 and the stainless steel roller 3 are installed inside the frame 1 through a rotatable detachable structure. Then, the rubber roller 2 and the stainless steel roller 3 are respectively connected to the two servo motors 41 of the drive assembly 4 through a detachable coupling 8. According to the material of the film to be coated, the micro-textured roller sleeve 61 with the corresponding roughness texture structure is selected. The bolts 64 and nuts 65 of the surface texture adjustment module 6 are loosened, the arc-shaped upper connecting plate 63 is opened, the micro-textured roller sleeve 61 is put on the rubber roller 2, and then the arc-shaped upper connecting plate 63 is closed and fixed by the bolts 64 and nuts 65. The anti-corrosion coating on the surfaces of bolts 64 and nuts 65 can prevent later rusting. After the equipment is started, the controller 71 of the control component 7 first calls the friction coefficient information of the current film in the film material database 72. At the same time, the pressure sensor array 51 embedded in the surface of the rubber roller 2 and uniformly distributed along the axial direction monitors the initial contact pressure between the rubber roller 2 and the stainless steel roller 3 in real time and transmits the pressure signal to the controller 71. The controller 71 combines the friction coefficient and the initial pressure data to automatically set the target friction force adapted to the current working condition. The controller 71 sends two servo motors to the drive component 4. Machine 41 sends a control signal, and two servo motors 41 drive the rubber roller 2 and stainless steel roller 3 to rotate synchronously. The substrate and film are fed between the rubber roller 2 and stainless steel roller 3, which are positioned opposite each other. Under the frictional force of the synchronous rotation of the two rollers, the substrate and film are transported forward synchronously, and the film coating operation is completed at the same time. During the film coating process, the pressure sensor array 51 continuously monitors the contact pressure at different positions between the rubber roller 2 and stainless steel roller 3 and transmits the real-time pressure signal to the controller 71. The controller 71 calculates the real-time friction force based on the pressure signal and compares it with the preset target friction force. If the deviation between the real-time friction force and the target friction force exceeds the reasonable range, the controller 71 immediately sends an adjustment signal to the pressure drive component 52 of the pressure adjustment component 5. After receiving the signal, the pressure drive component 52 pushes the stainless steel roller 3 to move to adjust the roller spacing between the rubber roller 2 and stainless steel roller 3, thereby changing the positive pressure between the two rollers, and finally bringing the real-time friction force back to the target friction force range to ensure stable film coating pressure. Throughout the film coating process, the controller 71 continuously analyzes the pressure signal transmitted by the pressure sensor array 51 and judges in real time whether the friction force between the rollers is within the normal threshold.

Claims

1. A fully automatic laminating machine capable of dynamically adjusting the friction between rollers, comprising a frame (1), a rubber roller (2), a stainless steel roller (3) mounted on the frame (1), a drive assembly (4), a pressure adjustment assembly (5), a surface texture adjustment module (6), and a control assembly (7); characterized in that: The rubber roller (2) and the stainless steel roller (3) are arranged opposite to each other. The driving assembly (4) includes two servo motors (41) for driving the rubber roller (2) and the stainless steel roller (3) to rotate synchronously. The two servo motors (41) are respectively connected to the rubber roller (2) and the stainless steel roller (3). The pressure regulating assembly (5) includes a pressure sensor array (51) for real-time monitoring of the contact pressure between the rubber roller (2) and the stainless steel roller (3) and a pressure driving component (52) for adjusting the roller spacing between the rubber roller (2) and the stainless steel roller (3). The pressure sensor array (51) is embedded in the rubber roller. The roller (2) surface; the pressure drive (52) is connected to the stainless steel roller (3); the surface texture adjustment module (6) includes a replaceable micro-textured roller sleeve (61), the micro-textured roller sleeve (61) is fixedly connected to the left and right ends of the left and right ends of the roller sleeve (61) with an arc-shaped lower connecting plate (62), one end of the arc-shaped lower connecting plate (62) is hinged to an arc-shaped upper connecting plate (63), the ends of the arc-shaped lower connecting plate (62) and the arc-shaped upper connecting plate (63) away from the hinge are fixedly connected by bolts (64) and nuts (65), and the arc-shaped lower connecting plate (62) and the arc-shaped upper connecting plate (63) form a space to adapt to the rubber roller (2).

2. The fully automatic laminating machine capable of dynamically adjusting the friction between rollers according to claim 1, characterized in that: The control component (7) includes a controller (71) and a thin film material database (72); the controller (71) is electrically connected to the drive component (4) and the pressure regulating component (5) respectively, and is used to receive the pressure signal transmitted by the pressure sensor array (51) and control the operation of the drive component (4) and the pressure regulating component (5); the thin film material database (72) stores the friction coefficient information of thin films of different materials, and is used to provide data support for the controller (71) to set the target friction force.

3. The fully automatic laminating machine capable of dynamically adjusting the friction between rollers according to claim 1, characterized in that: The pressure drive component (52) is a hydraulic system or a pneumatic system. By adjusting the roller spacing, the positive pressure between the rubber roller (2) and the stainless steel roller (3) is changed, thereby adjusting the friction between the rollers.

4. The fully automatic laminating machine capable of dynamically adjusting the friction between rollers according to claim 1, characterized in that: The rubber roller (2) and the stainless steel roller (3) are rotatably and detachably connected inside the frame (1), and the rubber roller (2) and the stainless steel roller (3) are detachably connected to the two servo motors (41).

5. A fully automatic laminating machine capable of dynamically adjusting the friction between rollers according to claim 1, characterized in that: The inner wall of the micro-textured roller sleeve (61) is attached to the outer wall of the rubber roller (2), and the surface of the micro-textured roller sleeve (61) is provided with textured structures of different roughness to adapt to films of different materials.

6. The fully automatic laminating machine capable of dynamically adjusting the friction between rollers according to claim 1, characterized in that: The pressure sensor array (51) is uniformly distributed along the axial direction of the rubber roller (2) to comprehensively monitor the contact pressure at different positions between the rubber roller (2) and the stainless steel roller (3).

7. A fully automatic laminating machine capable of dynamically adjusting the friction between rollers according to claim 4, characterized in that: The rubber roller (2) is connected to the stainless steel roller (3) and the two servo motors (41) by a coupling (8), and the coupling (8) is a detachable structure.

8. A fully automatic laminating machine capable of dynamically adjusting the friction between rollers according to claim 1, characterized in that: The surfaces of the bolts (64) and nuts (65) are both provided with anti-corrosion coatings.

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