A film supplying method, film pasting method, film supplying device, and film pasting apparatus

Abstract

The application discloses a film supplying method, a film pasting method, a film supplying device and a film pasting equipment. The film supplying method comprises the following steps: a pulling module clamps the end of the film and pulls the film out to a set length, a cutting assembly cuts the film, then the pulling module releases the end of the film so that the cut film is carried on a carrying platform, and the carrying platform with the film is moved to a set position along the length direction. The film pasting method comprises the following steps: a laying unit moves to the carrying platform to adsorb the film and lays the film to the edge of the material, and a film laying mechanism firmly pastes the film on the upper surface and the side surface of the material. The film supplying device comprises a film feeding mechanism and a pulling and carrying mechanism. The film pasting equipment comprises a conveying device, a correcting mechanism, the film supplying device and the film laying mechanism. The application effectively solves the three core problems of easy stretching and deformation of the film, easy damage of the surface and low production rhythm, so that the film laying precision, quality, efficiency and reliability are comprehensively improved.

Description

Technical Field

[0001] This invention belongs to the field of photovoltaic module manufacturing technology, and in particular relates to a film supply method, a film application method, a film supply device, and a film application equipment. Background Technology

[0002] To improve the quality and reduce the cost of photovoltaic (PV) modules, a new type of PV module has been designed. This new module uses a steel frame instead of an all-aluminum frame; the steel frame is fitted around the glass to form the module, reducing both the size and cost. Before fitting the steel frame to the glass, an adhesive film needs to be applied around the glass for bonding and cushioning. However, the adhesive film material is highly elastic, has strong adhesion, is narrow, and thin, making it prone to bending and wrinkling and difficult to fix. To ensure a better fit between the adhesive film and the steel frame, it needs to be applied to both the top and sides of the glass. Therefore, when laying the adhesive film at the edge of the glass, it needs to protrude a certain width from the PV module, and then bend it downwards to adhere the protruding film to the side of the PV module, thus simultaneously adhering to both the top and sides. For this process, there is an urgent need to design automated equipment to achieve the adhesive film application.

[0003] In the prior art, the foam tape synchronous application device disclosed in Chinese invention patent announcement number CN109120223B uses foam tape as a frame bonding material. The application device can apply foam tape to all four sides of the photovoltaic module. The left, right, front, and rear edge sealing components are all driven forward by their connected linear drive components, pulling out the foam tape. The edge sealing wheels move forward, and because the spacing between the four sets of edge sealing wheels is reduced, a simulated... One approach involves pressing foam tape onto the top and bottom surfaces of the photovoltaic (PV) module using a gradual pressing method. However, this method only adheres the foam tape to the top and bottom surfaces, failing to adhere the adhesive film to the top and sides. Furthermore, this method uses edge-sealing rollers to roll the foam tape onto the top and bottom surfaces of the PV module. Due to the high elasticity, narrow width, and thinness of the adhesive film, this rolling method stretches the film, reducing its thickness and affecting subsequent installation accuracy. Another approach, similar to the above, involves feeding the adhesive film in a whole roll and then pulling it out using a pulling mechanism. However, due to the high elasticity, narrow width, and thinness of the adhesive film in this approach, a key challenge is addressing the issue of the film becoming too long and affecting installation accuracy. In the prior art, regarding film feeding devices, for example, the film feeding mechanism in a photovoltaic module insulating film application device disclosed in Chinese Utility Model Patent Publication No. CN222764222U includes a punching mechanism, a cutting mechanism, a film pulling mechanism, and a film laying platform. The punching mechanism, cutting mechanism, and film laying platform are arranged sequentially along the supply direction of the insulating film strip. The film pulling mechanism first pulls out a specified length of film, the cutting mechanism cuts the film, and then the film pulling mechanism lays the film onto the film laying platform. To facilitate the film's support on the film laying platform, the platform is positioned near the cutting mechanism. Since the tail of the film is still close to the cutting mechanism after cutting, it is not conducive to the subsequent film laying mechanism removing the film. Therefore, the film pulling mechanism needs to pull the film again to lay it onto the film laying platform, so that the film is positioned near the middle of the platform for easy removal. In this solution, the pulling... The material module performs two film-pulling actions. The first action pulls the film to a set length and cuts it. The cut end of the film falls onto the film-laying platform, where it adheres. The second action pulls the film into the movement range of the film-laying mechanism. This second action significantly stretches the film. The above solution involves two film-pulling actions, which lengthen the film. This uneven thickness affects subsequent laying accuracy. Furthermore, very thin areas can lead to cracks and holes after laying, compromising film accuracy and reducing yield. The film-supply mechanisms described above cannot meet the film-supply requirements of this solution.

[0004] Therefore, it is necessary to provide a film supply method, a film application method, a film supply device, and a film application equipment to solve the above-mentioned technical problems. Summary of the Invention

[0005] The main objective of this invention is to provide a film feeding method that significantly improves the quality and accuracy of film feeding and avoids film damage and deformation.

[0006] The present invention achieves the above objective through the following technical solution: a membrane supply method, comprising the following steps:

[0007] S1. The unloading module releases the adhesive film and the feeding module conveys the adhesive film forward.

[0008] S2. The material pulling module clamps the end of the film and pulls the film out a set length along the length of the support platform. At the same time, air is injected into the support platform to make the film suspend above the support platform.

[0009] S3. The clamping component clamps the film, the cutting component cuts the film, and the pulling module releases the end of the film so that the cut film can be supported on the carrying platform.

[0010] S4. Extract the gas inside the bearing platform to put the surface of the bearing platform under negative pressure, and the adhesive film will be adsorbed on the bearing platform.

[0011] S5. The carrier platform with the adhesive film adsorbed is moved to the set position.

[0012] The second objective of this invention is to provide a film application method that significantly improves the quality and precision of adhesive film supply, avoids damage and deformation of the adhesive film, ensures the final film application quality and reliability, and also improves production cycle time and film application efficiency.

[0013] The present invention achieves the above-mentioned objective through the following technical solution: a film application method, which includes the steps described in the above-mentioned film supply method, and further includes the following steps:

[0014] S6. The material flows into the conveying device, and the straightening mechanism straightens the material on all four sides.

[0015] S7. The laying unit moves to the bearing platform to adsorb the adhesive film and lays the adhesive film to the edge of the material, with the outer side of the adhesive film protruding from the material by a set width.

[0016] S8. The bending and shaping unit moves above the adhesive film and brings the heating element and the air blowing element close to the adhesive film. The air blowing element is aligned with the outer side of the adhesive film to bend it and cover the side of the material. At the same time, the heating element is aligned with the adhesive film to firmly stick the adhesive film to the upper surface and side of the material, completing the film application action.

[0017] The third objective of this invention is to provide a film supply device that significantly improves the quality and accuracy of film supply and avoids film damage and deformation.

[0018] The present invention achieves the above objective through the following technical solution: a film supply device for performing the above-described film supply method, comprising:

[0019] The film feeding mechanism includes a feeding module, a feeding module, a detection module, a clamping assembly, and a cutting assembly;

[0020] A material feeding and carrying mechanism is disposed on one side of the adhesive film feeding mechanism. The material feeding and carrying mechanism includes a material feeding module and a carrying module. The material feeding module includes a clamping component and a first driving component that drives the clamping component to move along a first direction. The carrying module includes a carrying platform and a second driving component that drives the carrying platform to move along the first direction. The carrying platform is provided with a positioning structure extending along the first direction and a plurality of air holes. The clamping component is located above the carrying platform. The first driving component can drive the clamping component to move from one end of the carrying platform to the other end of the carrying platform.

[0021] Furthermore, several first rollers are rotatably provided at both ends of the bearing platform, a support component is provided at the head of the bearing platform, a first sensor is provided below the tail, and a first clearance opening is provided on the bearing platform.

[0022] Furthermore, the feeding module includes a feeding motor, a first rotating shaft driven by the feeding motor to rotate around a horizontal axis, a main transmission unit disposed at one end of the first rotating shaft, and a slave transmission unit that meshes with the main transmission unit. The main transmission unit includes a first feeding belt, and the slave transmission unit includes a second feeding belt. The two adjacent belt surfaces of the first feeding belt and the second feeding belt are parallel and spaced apart. The distance between the two adjacent belt surfaces of the first feeding belt and the second feeding belt is less than the thickness of the adhesive film to be fed.

[0023] Furthermore, the detection module includes a detection cylinder, a support that moves up and down driven by the detection cylinder, and a detection wheel rotatably mounted on the support.

[0024] Furthermore, it also includes a buffer module disposed between the feeding module and the feeding module, a stripping assembly disposed between the feeding module and the detection module, and a collection module disposed below the stripping assembly, wherein the feeding module and the clamping assembly are electrically connected to the detection module respectively.

[0025] The fourth objective of this invention is to provide a film-applying device that significantly improves the quality and precision of adhesive film supply, avoids damage and deformation of the adhesive film, ensures the final film-applying quality and reliability, and also improves production cycle time and film-applying efficiency.

[0026] The present invention achieves the above-mentioned objective through the following technical solution: a film application device, used to perform the above-mentioned film application method, comprising:

[0027] Conveying device;

[0028] A correction mechanism is arranged around the conveying device;

[0029] As described above, a film supply device is provided, and at least one film supply device is provided;

[0030] A film laying mechanism is provided above the conveying device, and at least one such mechanism is provided. The film laying mechanism includes a laying unit and a bending and shaping unit.

[0031] Furthermore, the laying unit includes a first drive module, a first movable plate connected to the movable end of the first drive module, a first lifting drive component disposed on the first movable plate, and a first lifting frame driven by the first lifting drive component to perform lifting actions. The bottom of the first lifting frame is provided with a plurality of adsorption components along the length direction.

[0032] Furthermore, the bending and shaping unit includes a second drive module, a second movable plate connected to the movable end of the second drive module, a second lifting drive component disposed on the second movable plate, and a second lifting frame driven by the second lifting drive component to perform lifting actions. The bottom of the second lifting frame is provided with a heating component and an air blowing component. The heating component and the air blowing component are arranged parallel to each other and both extend along the length direction of the second lifting frame.

[0033] Compared with the prior art, the advantages of the film supply method, film application method and film application equipment of the present invention are as follows:

[0034] 1. Significantly improves the quality and precision of adhesive film feeding, avoiding damage and deformation of the adhesive film. Specifically:

[0035] (1) The film supply process has been optimized to avoid excessive stretching of the film: Through the coordinated design of the material pulling and bearing mechanism, namely the single film pulling of the material pulling module and the movement and positioning of the bearing module, the number of times the film is pulled and the total length are reduced, which effectively prevents the film from becoming thinner, longer, or uneven in thickness due to excessive stretching. This ensures the laying accuracy of the film, reduces the risk of cracks and holes, and improves the laying yield.

[0036] (2) Improved feeding and pressing methods to prevent damage to the film surface: The feeding method adopts the "feeding belt" surface contact feeding, that is, the first feeding belt and the second feeding belt work together to transport the film. The contact area between the feeding belt and the film is large and the pressure is greatly reduced, avoiding scratches or indentations on the film surface. At the same time, the feeding module integrates feeding and pressing functions, eliminating the need for a separate pressing component, simplifying the structure, and effectively pressing the film in the non-feeding state to prevent it from shrinking or deforming.

[0037] (3) Enhanced process detection and control to ensure stable film condition: The detection module uses a probe wheel to detect the relaxation state of the film, which increases the contact area with the film and improves detection accuracy and reliability. It can monitor the tension of the film at the clamping component in real time and link with the feeding module to ensure that the film is in a relaxed state without excessive tension before cutting, further preventing accidental stretching and deformation of the film.

[0038] 2. Improved reliability of film positioning and handling: The material pulling and carrying mechanism is finely designed, and the carrying platform is precisely positioned using positioning pins. Combined with the functions of air blowing (anti-adhesion) and negative pressure suction (adsorption and fixation), it ensures the stability and accuracy of the film's position during cutting, transfer and waiting for laying. The setting of support wheels and rollers effectively prevents the film ends from sticking together, ensuring smooth cutting and dropping.

[0039] 3. Significantly improved production cycle time and film application efficiency: The laying unit and bending unit are driven independently. The laying unit and bending and shaping unit in the film laying mechanism are controlled by independent first drive module and second drive module respectively, realizing the parallel operation of the two. When the bending and shaping unit processes the laid film, the laying unit can simultaneously pick up and transport the next piece of film, eliminating the waiting time caused by unit linkage and significantly improving the overall film application production cycle time and efficiency.

[0040] 4. Ensures the final film application quality and reliability: The laying unit and bending unit work together to lay the film onto the upper surface and sides of the photovoltaic module. The efficient bending and curing mechanism, with the bending and shaping unit integrating air blowing components (air knife) and heating components (heating lamp tubes), achieves precise bending of the film to cover the sides of the photovoltaic module through air blowing, and then firmly adheres the film to the upper surface and sides through heating, ensuring the strong bond between the film and the photovoltaic module (especially the steel frame), providing a reliable guarantee for subsequent frame assembly work;

[0041] 5. Improved equipment versatility and ease of operation: The feeding gap is adjustable, and the gap between the first and second feeding belts in the feeding module is adjustable, making it adaptable to films of different thicknesses and enhancing the equipment's adaptability to materials of different specifications; The release paper collection module is optimized, and the collection module adopts a detachable bushing design with a limit plate, and is equipped with a damper, which facilitates quick replacement of the material roll and can stabilize the winding speed, adapt to films of different widths, and prevent material damage due to inertial pulling;

[0042] Therefore, this solution effectively solves the three core problems of easy stretching and deformation of the adhesive film, easy surface damage, and low production cycle by optimizing the material supply process, improving the structure and control method of key components, and realizing the independent parallel operation of functional units. As a result, it achieves a comprehensive improvement in the accuracy, quality, efficiency and reliability of adhesive film laying. Attached Figure Description

[0043] Figure 1 This is a schematic diagram of the film-applying device according to an embodiment of the present invention;

[0044] Figure 2 This is a schematic diagram of the conveying device and the straightening mechanism according to an embodiment of the present invention;

[0045] Figure 3 This is a schematic diagram of the front structure of the film feeding mechanism according to an embodiment of the present invention;

[0046] Figure 4 This is a schematic diagram of the back structure of the film feeding mechanism according to an embodiment of the present invention;

[0047] Figure 5 This is a schematic diagram of the adhesive film feeding mechanism of the present invention after removing the peeling component, detection module, clamping component, and cutting component;

[0048] Figure 6 This is a schematic diagram of the front structure of the feeding module after removing the feeding motor in an embodiment of the present invention;

[0049] Figure 7 This is a schematic diagram of the back of the feeding module after removing the feeding motor, according to an embodiment of the present invention.

[0050] Figure 8 This is a schematic diagram of the peeling component, detection module, clamping component, and cutting component of the film feeding mechanism according to an embodiment of the present invention;

[0051] Figure 9 This is a schematic diagram of the collection module of the film feeding mechanism according to an embodiment of the present invention;

[0052] Figure 10 This is a schematic diagram of the material pulling and bearing mechanism according to an embodiment of the present invention;

[0053] Figure 11This is an embodiment of the present invention. Figure 10 A magnified view of the structure at point A in the middle;

[0054] Figure 12 This is an embodiment of the present invention. Figure 10 A magnified schematic diagram of the structure at point B in the middle;

[0055] Figure 13 This is an embodiment of the present invention. Figure 10 A magnified schematic diagram of the structure at point C in the middle;

[0056] Figure 14 This is an embodiment of the present invention. Figure 11 A magnified schematic diagram of the structure at point D in the middle;

[0057] Figure 15 This is a schematic diagram of the structure of four film laying mechanisms in an embodiment of the present invention;

[0058] Figure 16 This is a schematic diagram of the structure of the laying unit in an embodiment of the present invention;

[0059] Figure 17 This is a schematic diagram of the bending and shaping unit according to an embodiment of the present invention;

[0060] The numbers in the image represent:

[0061] 100-Film application equipment;

[0062] 1-Conveying device, 11-Conveyor belt, 12-Conveyor motor, 13-Support wheel assembly;

[0063] 2-Correcting mechanism, 21-Front correcting component, 22-Rear correcting component, 23-Left correcting component, 24-Right correcting component;

[0064] 3-Film feeding device, 3a-Film feeding mechanism, 3b-Pulling and carrying mechanism, 31-Pulling module, 311-Clamping assembly, 3111-Clamping cylinder, 3112-Upper gripper, 3113-Lower gripper, 312-First drive assembly, 3121-Drive motor, 3122-Transmission belt, 3123-First support plate, 32-Carrying module, 321-Carrying platform, 3211-Positioning structure, 3212-Air hole, 3213-Gas inlet and outlet, 3214-First roller, 3215-Support assembly, 32151-Lifting cylinder, 32152-Third support frame, 32153-Support wheel, 32154 - First connecting plate, 3216 - First sensor, 3217 - First clearance opening, 3218 - Second connecting plate, 322 - Second drive assembly, 3221 - Second support plate, 330 - Mounting rod, 33 - Mounting bracket, 331 - Second guide wheel, 34 - Feeding module, 341 - Feeding motor, 342 - Feeding rotating shaft, 343 - Adhesive film roll, 344 - First guide wheel, 345 - Guide component, 35 - Buffer module, 351 - First slide rail, 352 - Counterweight, 353 - Buffer roller, 354 - Sensing sheet, 355 - Sensor group, 3551 - Second sensor, 3552 - Third sensor, 3 553-Fourth sensor, 3554-Fifth sensor, 356-Limiting component, 36-Feeding module, 361-Feeding motor, 362-First rotating shaft, 363-Main drive unit, 3631-First feeding belt, 3632-First gear, 3633-First main drive wheel, 3634-First driven wheel, 3635-First support shaft, 3636-First support frame, 364-Driven drive unit, 3641-Second feeding belt, 3642-Second support frame, 3643-Second rotating shaft, 3644-Second gear, 3645-Second main drive wheel, 3646-Second driven wheel, 3647-Second... Support shaft, 365-first fastener, 366-gap adjustment component, 37-peeling assembly, 371-pressing block, 372-peeling plate, 373-peeling support wheel, 38-detection module, 381-detection cylinder, 382-bracket, 383-detection wheel, 39-collecting module, 391-collecting motor, 392-third rotating shaft, 393-damper, 394-limiting plate, 395-collecting shaft, 396-shaft sleeve, 310-clamping assembly, 3101-clamping cylinder, 3102-first gripper, 320-cutting assembly, 3201-cutting cylinder, 3202-cutting moving plate, 3203-pneumatic shears;

[0065] 4-Film laying mechanism, 41-Laying unit, 411-First drive module, 412-First moving plate, 413-First lifting drive component, 414-First lifting frame, 415-Adsorption component, 42-Bending and shaping unit, 421-Second drive module, 422-Second moving plate, 423-Second lifting drive component, 424-Second lifting frame, 425-Heating component, 426-Blowing component. Detailed Implementation

[0066] Please refer to Figures 1-17 This embodiment is a film application device 100, which includes:

[0067] Conveying device 1, which is used to transport photovoltaic modules;

[0068] Correction mechanism 2 is arranged around conveying device 1 and is used to correct the four sides of the photovoltaic modules on conveying device 1.

[0069] Film supply device 3 is used to supply adhesive film;

[0070] The film laying mechanism 4 is located above the conveying device 1 and is used to transport the film on the film supply device 3 onto the photovoltaic module and stick the film to the side of the photovoltaic module.

[0071] Specifically, the conveying device 1 includes several parallel conveyor belts 11 and a conveying motor 12 that drives the conveyor belts 11 to perform conveying operations. The conveying device 1 is existing technology and will not be described in detail here. In order to ensure the stability of the conveying by the conveying device 1, support wheel sets 13 are provided between the conveyor belts 11 or on the sides of the conveyor belts 11, which can increase the support area of ​​the photovoltaic modules and ensure the stability of the conveying.

[0072] Specifically, the correction mechanism 2 includes a front correction component 21 for correcting the front end of the photovoltaic module, a rear correction component 22 for correcting the rear end of the photovoltaic module, a left correction component 23 for correcting the left side of the photovoltaic module, and a right correction component 24 for correcting the right side of the photovoltaic module. The correction mechanism 2 is existing technology and can be designed using existing technology, so it will not be described in detail here.

[0073] The film supply device 3 includes a film feeding mechanism 3a and a material pulling and carrying mechanism 3b disposed beside the film feeding mechanism 3a to pull the film out to a predetermined length and to hold the cut film. In this embodiment, the film feeding mechanism 3a and the material pulling and carrying mechanism 3b are one-to-one. There are four film feeding mechanisms 3a, located at the four corners of the conveying device 1. Correspondingly, there are four material pulling and carrying mechanisms 3b, located on the four sides of the photovoltaic module, thus achieving film application on all four sides of the photovoltaic module. In other embodiments, the number of film feeding mechanisms 3a and material pulling and carrying mechanisms 3b can be set according to the actual number of sides of the material to be filmed.

[0074] Specifically, the film feeding mechanism 3a includes a mounting bracket 33, and sequentially arranged on the mounting bracket 33 a feeding module 34, a buffer module 35, a feeding module 36, a peeling component 37, a detection module 38, a clamping component 310, and a cutting component 320. Below the peeling component 37, a collecting module 39 for collecting release paper is also provided. The film is released from the feeding module 34 and passes sequentially through the buffer module 35, the feeding module 36, the peeling component 37, and the detection module 38. After the film is pulled out, the clamping component 310 clamps the film, while the feeding module 36 presses down on the film. The cutting component 320 cuts the film to form a predetermined length for subsequent film laying. When the cutting component 320 cuts the adhesive film, the clamping component 310 needs to clamp the adhesive film first. To avoid excessive stretching of the adhesive film when the clamping component 310 clamps the adhesive film, the detection module 38 detects the tension of the adhesive film. The detection module 38 is located between the feeding module 36 and the clamping component 310. The feeding module 36 and the clamping component 310 are electrically connected to the detection module 38. The detection module 38 receives the electrical signal from the clamping component 310 to detect the tension of the adhesive film. The feeding module 36 adjusts the unwinding speed of the adhesive film according to the electrical signal from the detection module 38. If the adhesive film is detected to be in a relaxed state, it is determined that the adhesive film has not been excessively stretched; if the adhesive film is detected to be in a taut state, it is determined that the adhesive film has been excessively stretched. Then the feeding module 36 continues to feed a section of adhesive film forward, so that the adhesive film at the clamping component 310 is in a relaxed state.

[0075] The feeding module 34 includes a feeding motor 341 mounted on the mounting bracket 33, a feeding rotating shaft 342 driven by the feeding motor 341, a film roll 343 mounted on the feeding rotating shaft 342, and a guide member 345 and a plurality of first guide wheels 344 mounted on the mounting bracket 33. The guide member 345 guides the film on the film roll 343 to the first guide wheels 344, and the first guide wheels 344 guide the film on the film roll 343 to the buffer module 35 and then to the feeding module 36.

[0076] The buffer module 35 includes a first slide rail 351 vertically mounted on a mounting bracket 33, a counterweight 352 slidably mounted on the first slide rail 351, a plurality of buffer rollers 353 mounted on the counterweight 352, a sensing plate 354 fixed to one side of the counterweight 352, a plurality of sensor groups 355 arranged along the length of the first slide rail 351 and detecting the sensing plate 354, and a limiting member 356 located at the bottom of the first slide rail 351 and lowering the counterweight 352. An adhesive film is wound around the buffer rollers 353 and the first guide wheel 344. In this embodiment, two buffer rollers 353 are provided. In other embodiments, the number of buffer rollers 353 can be set according to actual conditions, and is not limited here.

[0077] In this embodiment, the sensor group 355 includes, from bottom to top, a second sensor 3551, a third sensor 3552, a fourth sensor 3553, and a fifth sensor 3554. The sensor group 355 allows for precise control of the unwinding speed of the unwinding motor 341 in the unwinding module 34. The specific control method for the sensor group 355 is described in reference to the control method in a photovoltaic module insulation material feeding and cutting device disclosed in Chinese Utility Model Patent Publication No. CN218802804U, and will not be repeated here. In other embodiments, the number of sensors in the sensor group 355 can be set according to actual conditions, and the working signal of each sensor can be set according to actual conditions. Working signals include stop signals, unwinding acceleration signals, unwinding deceleration signals, etc., and are not limited here.

[0078] The feeding module 36 includes a feeding motor 361, a first rotating shaft 362 driven by the feeding motor 361 to rotate around a horizontal axis, a main transmission unit 363 disposed at one end of the first rotating shaft 362, and a slave transmission unit 364 meshing with the main transmission unit 363. The main transmission unit 363 includes a first feeding belt 3631, and the slave transmission unit 364 includes a second feeding belt 3641. The first feeding belt 3631 and the second feeding belt 3641 are vertically opposite each other, and a feeding gap for the adhesive film to pass through is provided between them. The first feeding belt 3631 and the second feeding belt 3641 are adjacent to each other. The two belts are parallel and spaced apart. The distance between two adjacent belt surfaces of the first feeding belt 3631 and the second feeding belt 3641 is less than the thickness of the film to be fed, so that the first feeding belt 3631 and the second feeding belt 3641 can convey the film forward. The distance between two adjacent belt surfaces of the first feeding belt 3631 and the second feeding belt 3641 is the feeding gap. The size of the feeding gap between the first feeding belt 3631 and the second feeding belt 3641 is adjustable. By adjusting the size of the feeding gap, the clamping force on the film can be adjusted, and it can also be adapted to films of different thicknesses, improving the versatility of the feeding mechanism.

[0079] The main drive unit 363 includes a first gear 3632 disposed in the middle of the first rotating shaft 362, a first main drive wheel 3633 disposed at the end of the first rotating shaft 362, and a first driven wheel 3634 disposed on one side of the first main drive wheel 3633. The first feed belt 3631 is wound around the first main drive wheel 3633 and the first driven wheel 3634 to achieve rotational transmission. The first driven wheel 3634 is disposed on the first support frame 3636 through the first support shaft 3635. The first rotating shaft 362 is rotatably disposed on the first support frame 3636 through bearings.

[0080] The transmission unit 364 includes a second support frame 3642 located below the first support frame 3636 and whose vertical position is adjustable; a second rotating shaft 3643 rotatably mounted on the second support frame 3642 via bearings; a second gear 3644 located at one end of the second rotating shaft 3643 and meshing with the first gear 3632; a second main drive wheel 3645 located at the other end of the second rotating shaft 3643; and a second driven wheel 3646 located on one side of the second main drive wheel 3645. A second feeding belt 3641 is wound around the second main drive wheel 3645 and the second driven wheel 3646 to achieve rotational transmission. The second driven wheel 3646 is mounted on the second support frame 3642 via a second support shaft 3647.

[0081] The first support frame 3636 is fixedly mounted on the mounting bracket 33. The first support frame 3636 is provided with a gap adjustment member 366 extending vertically. The lower end of the gap adjustment member 366 abuts against the surface of the second support frame 3642. The bottom of the second support frame 3642 is provided with a first fastener 365, which passes through the second support frame 3642 and extends into the interior of the first support frame 3636. Both the second support frame 3642 and the first support frame 3636 are provided with threaded holes that cooperate with the gap adjustment member 366 and the first fastener 365. The vertical position of the second support frame 3642 is adjusted by turning the gap adjustment member 366 up and down, thereby adjusting the size of the feeding gap between the first feeding belt 3631 and the second feeding belt 3641. The first fastener 365 is tightened into the threaded hole to fix the position of the second support frame 3642. To ensure the stability of the second support frame 3642's vertical movement, the second support frame 3642 is movably mounted on the mounting bracket 33 via a sliding rail slider. In this embodiment, the gap adjustment component 366 and the first fastener 365 are bolts; in other embodiments, they can be set according to actual conditions.

[0082] When the buffer module 35 buffers the adhesive film, the counterweight 352 and the buffer roller 353 in the buffer module 35 move up and down, thereby driving the adhesive film to move up and down. When feeding is not required, the adhesive film needs to be pressed down. However, in this solution, there is no need to set up a special film pressing component. The feeding module 36 designed in this solution includes a first feeding belt 3631 and a second feeding belt 3641 that cooperate with each other. The first feeding belt 3631 and the second feeding belt 3641 can realize the feeding action when driving, and can press the film when not driving, which can realize the action of feeding. The film feeding and pressing processes are performed simultaneously. Furthermore, using a feeding belt offers the following advantages: Firstly, the first feeding belt 3631 and the second feeding belt 3641 are made of soft material, which avoids damage to the film. Soft materials are generally silicone, nitrile rubber, or polyurethane, but other materials can also be used, depending on the specific circumstances. Secondly, the feeding belt is flat and has a large area. Feeding or pressing is achieved through surface contact between the feeding belt and the film. This surface contact results in a large contact area and low pressure between the feeding belt and the film, preventing damage to the film.

[0083] Since the adhesive film is attached to the release paper, a peeling assembly 37 is provided to separate the adhesive film from the release paper. The peeling assembly 37 is positioned between the feeding module 36 and the detection module 38. Several second guide wheels 331 are also provided between the cutting assembly 320 and the feeding module 36 to guide the adhesive film. The peeling assembly 37 includes a pressing block 371 pressing the adhesive film above, a peeling plate 372 positioned below the pressing block 371, and a peeling support wheel 373 positioned at the front end of the peeling plate 372. A first gap is provided between the pressing block 371 and the peeling plate 372 for the adhesive film to pass through. The peeling plate 372 has a peeling blade at one end facing the clamping assembly 310. The peeling support wheel 373 is positioned on one side of the peeling blade. The release paper is rolled up and rolled onto the collecting module 39 in the opposite direction, while the adhesive film enters the clamping assembly 310. The peeling support wheel 373 ensures that the release paper is always under tension and guided downwards, guaranteeing the stability of peeling.

[0084] The detection module 38 includes a detection cylinder 381 mounted on a mounting bracket 33, a bracket 382 driven by the detection cylinder 381 to move up and down, and a detection wheel 383 rotatably mounted on the bracket 382 for detecting the adhesive film. The detection wheel 383 has a large contact area with the adhesive film, which can improve the detection accuracy. Moreover, the detection wheel 383 is rotatably mounted, which can prevent the adhesive film from adhering to the detection wheel 383.

[0085] The clamping assembly 310 includes a clamping cylinder 3101 mounted on the mounting bracket 33 and a pair of first grippers 3102 driven by the clamping cylinder 3101 to open or clamp. The cutting assembly 320 includes a cutting cylinder 3201 mounted on the mounting bracket 33, a cutting moving plate 3202 driven by the cutting cylinder 3201 to move closer to or away from the adhesive film, and pneumatic scissors 3203 mounted on the cutting moving plate 3202.

[0086] The detection principle of the detection module 38 is as follows: After the film is stretched to a set length, the pair of first grippers 3102 of the clamping component 310 clamp the film, and the cutting component 320 performs a cutting action on it. At the same time, the detection module 38 starts to work, and the detection cylinder 381 drives the detection wheel 383 to descend. If the detection wheel 383 cannot sense the film, it is determined that the film is in a relaxed state and is considered not to be overstretched, which meets the requirements. If the detection wheel 383 can sense the film, it is determined that the film is in a taut state and is considered to be overstretched. Then the feeding module 36 continues to feed a section of film forward, so that the film at the clamping component 310 is in a relaxed state, which can avoid the film being overstretched and deformed. Therefore, this solution can be applied to the feeding of highly elastic films and can also avoid the problem of the film being stretched and deformed.

[0087] The collecting module 39 includes a take-up motor 391 mounted on a mounting bracket 33, a third rotating shaft 392 driven by the take-up motor 391 to rotate around a horizontal axis, and a damper 393 connected to one end of the third rotating shaft 392. The other end of the damper 393 is connected to a take-up shaft 395. A pair of limiting plates 394 are provided on the outer periphery of the take-up shaft 395 to limit the two sides of the release paper. The limiting plates 394 are detachably mounted on the outer periphery of the take-up shaft 395 via bushings 396. In actual use, the bushings 396 and the limiting plates 394 are used as a whole to transfer the adhesive film. When changing to a different adhesive film, the bushings 396 and the limiting plates 394 are removed from the take-up shaft 395 together, and the bushings 396 and the limiting plates 394 with the adhesive film are reinstalled. Moreover, the spacing between the pair of limiting plates 394 is adjustable to accommodate adhesive films of different widths. When the third rotating shaft 392 rotates to collect the material, the rotational resistance is usually small. However, due to the inertia of the rotation of the third rotating shaft 392, the collection speed may be unstable. The damper 393 can provide a certain resistance, so that the collection shaft 395 has a certain resistance when rotating relative to the third rotating shaft 392. This can prevent the collection shaft 395 from tearing the adhesive film or release paper due to excessive rotational inertia.

[0088] Specifically, the material pulling and carrying mechanism 3b includes a material pulling module 31 that pulls the adhesive film outward and a carrying module 32 that carries and cuts the pulled-out adhesive film into a set length. The material pulling module 31 includes a clamping component 311 and a first driving component 312 that drives the clamping component 311 to move along a first direction; the carrying module 32 includes a carrying platform 321 and a second driving component 322 that drives the carrying platform 321 to move along a first direction. The carrying platform 321 is provided with a positioning structure 3211 extending along the first direction and a plurality of air holes 3212.

[0089] In this embodiment, the first direction is the length direction of the support platform 321. Since the adhesive film is very long, the first driving component 312 drives the clamping component 311 to move along the length direction of the support platform 321 to pull out the adhesive film. The clamping component 311 is located above the support platform 321. The first driving component 312 can drive the clamping component 311 to move from one end of the support platform 321 to the other end of the support platform 321 so that the support platform 321 can receive the pulled-out adhesive film.

[0090] In this embodiment, the positioning structure 3211 consists of two rows of positioning pins disposed on the upper surface of the support platform 321. The spacing between the two rows of positioning pins matches the width of the adhesive film to be positioned, and the adhesive film is confined between the two rows of positioning pins. Air holes 3212 are disposed between the two rows of positioning pins, and several rows are provided. Gas inlet and outlet 3213 communicating with the air holes 3212 are provided on the side of the support platform 321. In other embodiments, the positioning structure 3211 can be configured as a positioning block, or a corresponding positioning structure 3211 can be set according to the actual situation.

[0091] Both ends of the support platform 321 are rotatably equipped with a plurality of first rollers 3214. When the adhesive film falls onto the ends of the support platform 321, the first rollers 3214 tend to rotate, which can prevent the adhesive film from adhering to the ends of the support platform 321. The head of the support platform 321 is provided with a support assembly 3215, and the lower end of the tail is provided with a first sensor 3216. The support platform 321 is provided with a first clearance opening 3217 for the detection light of the first sensor 3216 to pass through. The support assembly 3215 includes a lifting cylinder 32151, a third support frame 32152 driven by the lifting cylinder 32151 to move up and down, and a support wheel 32153 rotatably mounted on the third support frame 32152. The lifting cylinder 32151 is connected to the lower surface of the support platform 321 through a first connecting plate 32154. After the material pulling module 31 sets the length of the adhesive film, the lifting cylinder 32151 drives the third support frame 32152 to move the support wheel 32153 to support the tail of the adhesive film, so that the adhesive film on both sides of the scissors is at the same height, which can ensure the cutting accuracy of the adhesive film. After cutting, the support wheel 32153 descends, and the tail of the adhesive film falls down onto the first roller 3214. The function of the support wheel 32153 is the same as or similar to that of the first roller 3214, and will not be described in detail here.

[0092] The clamping assembly 311 includes a clamping cylinder 3111 and an upper jaw 3112 and a lower jaw 3113 connected to the movable end of the clamping cylinder 3111. The upper jaw 3112 and the lower jaw 3113 are driven by the clamping cylinder 3111 to open or clamp simultaneously.

[0093] The first drive assembly 312 and the second drive assembly 322 are jointly mounted on a mounting rod 330. To ensure the stability of the movement of the clamping assembly 311 and the supporting platform 321, the first support plate 3123 and the supporting platform 321 are both movably mounted on the mounting rod 330 via a slide rail slider. The first sensor 3216 is connected to the mounting rod 330 via a second connecting plate 3218. In this embodiment, the adhesive film is relatively long, so the stroke of the clamping assembly 311 is relatively long. Therefore, the first drive assembly 312 includes a drive motor 3121 and a transmission belt 3122 driven by the drive motor 3121. The clamping cylinder 3111 is connected to the transmission belt 3122 via the first support plate 3123. Since the stroke of the supporting platform 321 is short, the second drive assembly 322 is a linear drive module, and the supporting platform 321 is connected to the linear drive module via the second support plate 3221.

[0094] The working process of the material pulling and carrying mechanism 3b is as follows: The first drive component 312 drives the clamping component 311 to clamp the head of the film. The clamping component 311 pulls the film out along the length of the carrying platform 321. The film is in a relaxed and drooping state, and the two sides of the film are restricted between two rows of positioning pins. At the same time, air is injected into the gas inlet and outlet 3213 on the carrying platform 321. The gas enters the air hole 3212 and blows towards the bottom surface of the film to prevent the film from adhering to the surface of the carrying platform 321. After the first drive component 312 drives the clamping component 311 to move to the set position, it stops. The lifting cylinder 32151 drives the third support frame 32152 to drive the support wheel 32153 to support the tail of the film, so that the film on both sides of the scissors is at the same height, which can ensure the cutting accuracy of the film. After the cutting is completed, the support wheel 32153 descends, and the tail of the film falls down onto the first roller 3214. At the same time, the clamping cylinder 311... 1. The upper gripper 3112 and lower gripper 3113 are driven to open, releasing the head of the adhesive film. The adhesive film falls completely onto the support platform 321. Air is drawn from the gas inlet / outlet 3213 on the support platform 321, creating a negative pressure state inside the vent 3212, thereby adsorbing the adhesive film onto the support platform 321. Then, the second drive assembly 322 drives the support platform 321 to move towards the head end of the adhesive film to a set position. This set position is within the travel range of the adhesive film laying mechanism 4, making it easy for the adhesive film laying mechanism 4 to remove the adhesive film. At this time, the first clearance opening 3217 is located directly above the first sensor 3216, allowing the detection light from the first sensor 3216 to pass through. The first sensor 3216 detects whether the position of the adhesive film has shifted. If the position of the adhesive film has shifted, an alarm is triggered to prompt the operator to confirm. If the position of the adhesive film has not shifted, the adhesive film laying mechanism 4 removes the adhesive film and performs the laying operation. In this solution, the material pulling module 31 performs only one film pulling action. The first driving component 312 drives the clamping component 311 to move along the length direction of the bearing platform 321 to pull out the film. The second driving component 322 drives the bearing platform 321 to continue moving along the length direction of the bearing platform 321 to a set position, so as to achieve the position correspondence with the film laying mechanism 4. This can avoid the problem of the film being stretched and affecting the film laying accuracy.

[0095] This solution provides a film supply method, which is based on the aforementioned film supply device 3, and includes the following steps:

[0096] S1. The unloading module 34 releases the adhesive film and the feeding module 36 conveys the adhesive film forward.

[0097] S2. The material pulling module 31 clamps the end of the film and pulls the film out a set length along the length direction of the support platform 321. At the same time, air is injected into the support platform 321 to make the film float above the support platform 321.

[0098] S3. The clamping component 310 clamps the adhesive film, the cutting component 320 cuts the adhesive film, and the pulling module 31 releases the end of the adhesive film so that the cut adhesive film is carried on the carrying platform 321. After the clamping component 310 clamps the adhesive film, the detection module 38 will detect the slack state of the adhesive film at the clamping component 310.

[0099] S4. Extract the gas inside the bearing platform 321 to make the surface of the bearing platform 321 negative pressure, so that the adhesive film is adsorbed on the bearing platform 321.

[0100] S5. The carrier platform 321 with the adhesive film adsorbed moves along its length to a set position to facilitate subsequent film application.

[0101] Specifically, the film laying mechanism 4 includes a laying unit 41 that adsorbs, transfers, and lays the film of a predetermined length determined by the film supply device 3 to the edge of the photovoltaic module, and a bending and shaping unit 42 that bends the laid film and firmly adheres it to the upper surface and sides of the photovoltaic module. The bending and shaping unit 42 is located on the inner side and performs bending and shaping actions on the edge of the photovoltaic module, while the laying unit 41 is located on the outer side and transports and lays the film between the film supply device 3 and the edge of the photovoltaic module.

[0102] Specifically, the laying unit 41 includes a first drive module 411, a first movable plate 412 connected to the movable end of the first drive module 411, a first lifting drive component 413 disposed on the first movable plate 412, and a first lifting frame 414 driven by the first lifting drive component 413 to perform lifting action. The bottom of the first lifting frame 414 is provided with a plurality of adsorption components 415 along the length direction for adsorbing adhesive film.

[0103] Specifically, the bending and shaping unit 42 includes a second drive module 421, a second moving plate 422 connected to the movable end of the second drive module 421, a second lifting drive component 423 disposed on the second moving plate 422, and a second lifting frame 424 driven by the second lifting drive component 423 to perform lifting and lowering actions. At the bottom of the second lifting frame 424, there is a heating component 425 for heating the adhesive film and an air blowing component 426 for blowing air onto the adhesive film to achieve the bending action of the adhesive film. The heating component 425 and the air blowing component 426 are arranged parallel to each other and both extend along the length direction of the second lifting frame 424. In actual operation, the air blowing component 426 is located on the outside of the photovoltaic module. When the laying unit 41 lays the adhesive film on the edge of the photovoltaic module, the outer side of the adhesive film protrudes from the photovoltaic module by a set width. The air blowing component 426 is aligned with the outer adhesive film to bend it and cover the side of the photovoltaic module. The heating component 425 is aligned with the adhesive film to firmly stick the adhesive film to the upper surface and side of the photovoltaic module. This ensures that the adhesive film is firmly stuck to the upper surface and side of the photovoltaic module, which is convenient for subsequent frame assembly operations.

[0104] In this embodiment, the air blowing component 426 is configured as an air knife. The process parameters such as the angle of the air outlet, the size of the air outlet, and the duration of the air outlet are set according to the actual situation and are not limited here. In other embodiments, the air blowing component 426 can be set according to the actual situation and are not limited here.

[0105] In this embodiment, the heating element 425 is set as a heating lamp tube. The heating temperature and heating time, and other process parameters, are set according to the actual situation and are not limited here. In other embodiments, the heating element 425 can be set according to the actual situation and are not limited here.

[0106] In this embodiment, four film laying mechanisms 4 are provided, all of which have the same or similar structure and are located on the four sides of the photovoltaic module. The four film laying mechanisms 4 are the front film laying mechanism, the rear film laying mechanism, the left film laying mechanism and the right film laying mechanism, which lay film on the front, rear, left and right sides of the photovoltaic module respectively.

[0107] The first drive module 411 and the second drive module 421 have the same structure, both driven by a motor and a transmission belt. The first moving plate 412 and the second moving plate 422 are fixed on the transmission belt. The first drive module 411 drives the first moving plate 412 to move the adsorption component 415 in a straight line. The second drive module 421 drives the second moving plate 422 to move the heating component 425 and the air blowing component 426 in a straight line. If the film laying mechanism 4 is arranged in the front-back direction, it moves back and forth. If the film laying mechanism 4 is arranged in the left-right direction, it moves left and right. For example, the front film laying mechanism and the rear film laying mechanism can move back and forth, and the left film laying mechanism and the right film laying mechanism can move left and right, together realizing the film laying action on the four sides of the photovoltaic module.

[0108] Furthermore, in this solution, the laying unit 41 is equipped with a first drive module 411 that drives the first moving plate 412 to move the adsorption component 415 in a straight line. The bending and shaping unit 42 is equipped with a second drive module 421 that drives the second moving plate 422 to move the heating component 425 and the air blowing component 426 in a straight line. The laying unit 41 and the bending and shaping unit 42 work independently. When the bending and shaping unit 42 is performing bending and shaping, the laying unit 41 can adsorb and transport the adhesive film on the film supply device 3. The two do not interfere with each other, which can improve the rhythm of adhesive film laying and bending and shaping, thereby improving the efficiency of film application.

[0109] When applying the film-applying equipment 100 provided in this solution, the photovoltaic module flows into the conveying device 1. The alignment mechanism 2 aligns the four sides of the photovoltaic module. At the same time as the photovoltaic module flows in, the film supply devices 3 at the four corners of the photovoltaic module work simultaneously. The film is released from the feeding module 34 and passes through the buffer module 35, feeding module 36, peeling component 37, and detection module 38 in sequence. The pulling and bearing mechanism 3b starts to work. The first driving component 312 drives the clamping component 311 to move along the length of the bearing platform 321 to pull out the film. The film is in a relaxed and drooping state, and the two sides of the film are restricted between two rows of positioning pins. At the same time, air is injected into the gas inlet and outlet 3213. The gas enters the air hole 3212 and blows towards the bottom surface of the film. The adhesive film is suspended above the support platform 321 to prevent it from adhering to the surface of the support platform 321. The first drive assembly 312 drives the clamping assembly 311 to move to the set position and then stops. The clamping assembly 310 clamps the adhesive film. The detection module 38 detects the slack state of the adhesive film at the clamping assembly 310. The lifting cylinder 32151 drives the third support frame 32152 to drive the support wheel 32153 to support the tail of the adhesive film, so that the adhesive film on both sides of the scissors is at the same height, which can ensure the cutting accuracy of the adhesive film. The cutting assembly 320 cuts the adhesive film. After the cutting is completed, the support wheel 32153 descends, and the tail of the adhesive film falls down onto the first roller 3214. At the same time, the clamping cylinder 3111 drives the upper jaw 3112 and the lower jaw 3113 to open. The head of the adhesive film is released, and the film falls completely onto the support platform 321. Air is drawn from the gas inlet / outlet 3213, creating a negative pressure within the vent 3212, causing the film to adhere to the support platform 321. Then, the second drive assembly 322 drives the support platform 321 to move towards the head end of the film. At this point, the first clearance opening 3217 is directly above the first sensor 3216. The first sensor 3216 detects whether the film's position has shifted. If there is a shift, an alarm is triggered to prompt the operator for confirmation. If the film's position has not shifted, the film laying mechanism begins operation. The front, rear, left, and right film laying mechanisms on all four sides of the photovoltaic module operate simultaneously. First, the four laying units 41 start working simultaneously. The first drive module 411 drives the first moving plate 412 to move above the corresponding material-lifting and bearing mechanism 3b. The first lifting drive component 413 drives the first lifting frame 414 to descend. Several adsorption components 415 simultaneously adsorb different positions of the adhesive film length. The first lifting drive component 413 drives the first lifting frame 414 to rise. The first drive module 411 drives the first moving plate 412 to move to the upper edge of the corresponding photovoltaic module. The adsorption components 415 of the laying unit 41 break the vacuum and place the adhesive film on the edge of the photovoltaic module, with the outer side of the adhesive film protruding beyond the set width of the photovoltaic module. Then, the four laying units 41 return to adsorb the next adhesive film. At the same time, the four bending and shaping units 42 start working.The second drive module 421 drives the second moving plate 422 to move the heating element 425 and the air blowing element 426 above the adhesive film. The second lifting drive unit 423 drives the second lifting frame 424 to descend, bringing the heating element 425 and the air blowing element 426 close to the adhesive film. The air blowing element 426 aligns with the outer adhesive film, bending it and covering the side of the photovoltaic module. At the same time, the heating element 425 aligns with the adhesive film, firmly adhering it to the upper surface and side of the photovoltaic module. The four bending and shaping units 42 rise and reset, completing the film application. The photovoltaic module flows out of the conveying device 1 and continues to receive new photovoltaic modules for adhesive film application.

[0110] This solution also provides a film application method, which is based on the film application device 100 described above, and includes the steps described in the film supply method above, and further includes the following steps:

[0111] S6. The photovoltaic modules flow into the conveying device 1, and the alignment mechanism 2 aligns the photovoltaic modules on all four sides.

[0112] S7. The laying unit 41 moves to the support platform 321 to absorb the adhesive film and lay it on the edge of the photovoltaic module, with the outer side of the adhesive film protruding from the photovoltaic module by a set width. In this embodiment, the set width is 1 / 2 of the adhesive film width, that is, half of the exposed width of the adhesive film. The other half of the width is located at the upper surface edge of the photovoltaic module, so that the width of the upper surface of the photovoltaic module is the same as the width of the side film. In other embodiments, the exposed width can be set according to the actual situation. For example, 2 / 3 or 3 / 4 of the adhesive film width can also be exposed. A wider adhesive film on the side of the photovoltaic module can make the frame adhere well to the side of the glass. Therefore, the exposed width of the adhesive film is not limited here and can be set according to the actual situation.

[0113] S8. The bending and shaping unit 42 moves above the adhesive film and brings the heating element 425 and the blowing element 426 close to the adhesive film. The blowing element 426 is aligned with the outer side of the adhesive film to bend it and cover the side of the photovoltaic module. At the same time, the heating element 425 is aligned with the adhesive film to firmly stick the adhesive film to the upper surface and side of the photovoltaic module, completing the film application action, and the photovoltaic module flows out.

[0114] In this solution, a film is applied to the side of the photovoltaic module. In other embodiments, if the material has a similar structure to the photovoltaic module, the above method can also be used to achieve the film application.

[0115] The above descriptions are merely some embodiments of the present invention. Those skilled in the art can make various modifications and improvements without departing from the inventive concept of the present invention, and these all fall within the scope of protection of the present invention.

Claims

1. A membrane supply method, characterized in that, It includes the following steps: S1. The unloading module releases the adhesive film and the feeding module conveys the adhesive film forward. S2. The material pulling module clamps the end of the film and pulls the film out a set length along the length of the support platform. At the same time, air is injected into the support platform to make the film suspend above the support platform. S3. The clamping component clamps the film, the cutting component cuts the film, and the feeding module releases the end of the film so that the cut film is supported on the carrying platform. After the clamping component clamps the film, the detection module will detect the slack state of the film at the clamping component. If the detection module cannot sense the film, it is determined that the film is in a slack state. If the detection module senses the film, it is determined that the film is in a tensioned state. At this time, the feeding module continues to convey a section of film forward so that the film at the clamping component is in a slack state. S4. Extract the gas inside the bearing platform to put the surface of the bearing platform under negative pressure, and the adhesive film will be adsorbed on the bearing platform. S5. The carrier platform with the adhesive film adsorbed moves to the set position; The film supply method is based on a film supply device, which includes: The film feeding mechanism includes a feeding module, a feeding module, a detection module, a clamping assembly, and a cutting assembly; A material pulling and carrying mechanism is disposed on one side of the adhesive film feeding mechanism. The material pulling and carrying mechanism includes a material pulling module and a carrying module. The carrying module includes a carrying platform and a second driving component that drives the carrying platform to move along a first direction.

2. The membrane supply method as described in claim 1, characterized in that: The material pulling module includes a clamping component and a first driving component that drives the clamping component to move along a first direction; the bearing platform is provided with a positioning structure extending along the first direction and a plurality of air holes, the clamping component is located above the bearing platform, and the first driving component can drive the clamping component to move from one end of the bearing platform to the other end of the bearing platform.

3. The membrane supply method as described in claim 1, characterized in that: Both ends of the bearing platform are rotatably equipped with a number of first rollers, the head of the bearing platform is equipped with a support component, the lower part of the tail is equipped with a first sensor, and the bearing platform is equipped with a first clearance opening.

4. The membrane supply method as described in claim 1, characterized in that: The feeding module includes a feeding motor, a first rotating shaft driven by the feeding motor to rotate around a horizontal axis, a main transmission unit disposed at one end of the first rotating shaft, and a slave transmission unit that meshes with the main transmission unit. The main transmission unit includes a first feeding belt, and the slave transmission unit includes a second feeding belt. The two adjacent belt surfaces of the first feeding belt and the second feeding belt are parallel and spaced apart. The distance between the two adjacent belt surfaces of the first feeding belt and the second feeding belt is less than the thickness of the adhesive film to be fed.

5. The membrane supply method as described in claim 1, characterized in that: The detection module includes a detection cylinder, a support that moves up and down driven by the detection cylinder, and a detection wheel that is rotatably mounted on the support.

6. The membrane supply method as described in claim 1, characterized in that: It also includes a buffer module disposed between the feeding module and the feeding module, a stripping assembly disposed between the feeding module and the detection module, and a collection module disposed below the stripping assembly, wherein the feeding module and the clamping assembly are electrically connected to the detection module.

7. A method for applying a film, characterized in that, It includes the steps described in any one of claims 1 to 6 for a film supply method, and further includes the following steps: S6. The material flows into the conveying device, and the straightening mechanism straightens the material on all four sides. S7. The laying unit moves to the bearing platform to adsorb the adhesive film and lays the adhesive film to the edge of the material, with the outer side of the adhesive film protruding from the material by a set width. S8. The bending and shaping unit moves above the adhesive film and brings the heating element and the air blowing element close to the adhesive film. The air blowing element is aligned with the outer side of the adhesive film to bend it and cover the side of the material. At the same time, the heating element is aligned with the adhesive film to firmly stick the adhesive film to the upper surface and side of the material, completing the film application action.

8. A film application device, characterized in that, It is used to perform a film application method as described in claim 7, comprising: Conveying device; A correction mechanism is arranged around the conveying device; The film supply device, and at least one film supply device is provided; A film laying mechanism is provided above the conveying device, and at least one such mechanism is provided. The film laying mechanism includes a laying unit and a bending and shaping unit.

9. A film-applying device as described in claim 8, characterized in that: The laying unit includes a first drive module, a first movable plate connected to the movable end of the first drive module, a first lifting drive component disposed on the first movable plate, and a first lifting frame driven by the first lifting drive component to perform lifting actions. The bottom of the first lifting frame is provided with a plurality of adsorption components along the length direction.

10. A film-applying device as described in claim 8, characterized in that: The bending and shaping unit includes a second drive module, a second movable plate connected to the movable end of the second drive module, a second lifting drive component disposed on the second movable plate, and a second lifting frame driven by the second lifting drive component to perform lifting actions. The bottom of the second lifting frame is provided with a heating component and an air blowing component. The heating component and the air blowing component are arranged parallel to each other and both extend along the length direction of the second lifting frame.

Images