Circuit board covering film laminating device

Abstract

The invention relates to the technical field of circuit boards, and discloses a circuit board covering film attaching device which comprises a conveying assembly, a film rolling assembly, an elastic pressing and covering roller and a cutting assembly. The conveying assembly is provided with a bearing station, the bearing station is used for placing a circuit board, and the conveying assembly is used for conveying the circuit board placed on the bearing station in the first direction; the film rolling assembly comprises an unwinding mechanism and a winding mechanism, the unwinding mechanism and the winding mechanism are sequentially arranged above the conveying assembly in the first direction, one part of a covering film for protection is wound on the unwinding mechanism, and the other part of the covering film for protection is wound on the winding mechanism; the elastic pressing and covering roller is arranged above the covering film and located between the unwinding mechanism and the winding mechanism. According to the circuit board covering film laminating device, covering film laminating processing can be continuously carried out, the efficiency of laminating covering films in batches is effectively improved, bubbles are reduced, and thus the laminating quality is improved.

Description

Technical Field

[0001] The invention relates to the technical field of circuit board manufacturing, and in particular to a circuit board covering film laminating device. Background Art

[0002] A circuit board is a substrate used to connect and support electronic components in electronic devices. It is made of insulating material and covered with conductive paths on the surface to achieve electrical connections between electronic components. After the circuit board is produced and before it is used, the produced circuit boards are stacked and transported for storage. During the stacking or transportation process, the surface of the circuit board is easily scratched or worn, which can easily affect the effect of the circuit board when used. Therefore, after the production of the circuit board is completed, a layer of covering film needs to be attached to the surface of the circuit board to protect the circuit board, prevent the surface of the circuit board from being easily scratched or worn, and prevent dust and moisture from invading, thereby extending the service life of the circuit board and ensuring its normal function.

[0003] At present, in the process of covering film laminating of large quantities of circuit boards, after the circuit board is placed in the covering film laminating position, the covering film is pressed onto the surface of the circuit board from top to bottom along the direction of gravity, and then the covering film at the edge of the circuit board is cut by a cutting knife. There are many operation steps and they are relatively cumbersome, which affects the efficiency of the laminating process. At the same time, pressing the covering film onto the surface of the circuit board from top to bottom along the direction of gravity is prone to generate bubbles, which affects the adhesion of the covering film. It is easy to fall off and also affects the aesthetics of the circuit board after laminating with the covering film. After each cutting, the circuit board needs to be replaced manually. When taking out the circuit board with the covering film laminating from the laminating position and placing the circuit board without the covering film laminating, many processes are required, which affects the production efficiency of batch laminating circuit boards. Summary of the invention

[0004] The object of the present invention is to provide a circuit board covering film laminating device, which can continuously perform covering film laminating processing, effectively improve the efficiency of batch laminating covering films, and reduce the generation of bubbles, thereby improving the laminating quality.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: Design a circuit board covering film laminating device, including a conveying component, a film rolling component, an elastic pressing roller and a cutting component; The conveying assembly is provided with a carrying station, the carrying station is used to place the circuit board, and the conveying assembly is used to convey the circuit board placed at the carrying station along a first direction; The film roll assembly includes an unwinding mechanism and a rewinding mechanism, which are arranged in sequence above the conveying assembly along a first direction, and a portion of the protective covering film is wound on the unwinding mechanism, and another portion is wound on the rewinding mechanism; The elastic pressing roller is arranged above the covering film and between the unwinding mechanism and the rewinding mechanism, and is used to press the covering film onto the surface of the circuit board located at the carrying station; The cutting assembly is located above the covering film and is used for cutting the covering film pressed on the circuit board.

[0006] Optionally, at least two elastic pressing rollers are provided, and the elastic pressing rollers include an elastic roller body and a support rod, the end face of the elastic roller body is sleeved on the surface of the support rod through an opened through hole, and the outer surface is tightly pressed against the covering film, the two elastic roller bodies are located between the unwinding mechanism and the winding mechanism, and the cutting assembly is located between the two elastic roller bodies.

[0007] Optionally, the cutting assembly includes a first edge cutting portion, a second edge cutting portion and a positioning plate, the fixed end of the first edge cutting portion is slidably connected to the positioning plate along a second direction, the second edge cutting portion is arranged on the surface of the positioning plate facing the covering film, and the positioning plate is arranged above the covering film and located between the two elastic rollers.

[0008] Optionally, the first edge cutting portion includes a first cutting knife, a pad and a locking cover, the positioning plate is slidably connected to the first cutting knife via a sliding hole opened along the second direction, the pad is fixedly connected to the surface of the first cutting knife and abuts against the bottom of the positioning plate, and the surface of the locking cover is threadedly connected to the surface of the first cutting knife passing through the sliding hole via a threaded hole.

[0009] Optionally, the second edge cutting part includes a lifting part, a driving motor, a cutting frame and a cutting piece, the fixed end of the lifting part is arranged at the bottom of the positioning plate, the cutting frame is fixedly connected to the lifting end of the lifting part, the bottom of the cutting frame is rotatably connected to a threaded rod, the fixed end of the cutting piece is threadedly connected to the outer surface of the threaded rod, the driving motor is arranged at the end of the cutting frame and the output end is fixedly connected to the end face of the threaded rod, which is used to drive the threaded rod to rotate so that the cutting piece slides along the second direction.

[0010] Optionally, the cutting member includes a second cutting blade and a second support frame, the second support frame is fixedly connected to the bottom of the cutting frame, and the second cutting blade is fixedly connected to the second support frame.

[0011] Optionally, a control component is also included, which includes a control module, a driver and a detection unit, the input end of the control module is electrically connected to the output end of the detection unit, the output end of the control module is electrically connected to the input end of the driver, and the output end of the driver is electrically connected to the driving end of the conveying component, the winding mechanism and the cutting component.

[0012] Optionally, the unwinding mechanism includes an unwinding drum and an unwinding rod, one end of the unwinding rod is fixedly connected to the fixed end of the conveying component, the unwinding drum is sleeved on the outer surface of the unwinding rod, and a portion of the covering film is wound on the unwinding drum.

[0013] Optionally, the winding mechanism includes a winding drum, a winding rod and a winding motor, one end of the winding rod is fixedly connected to the fixed end of the conveying assembly, the winding drum is sleeved on the outer surface of the winding rod, another part of the covering film is wound on the winding drum, and the winding motor is fixedly connected to the winding rod and at least the output end is connected to the winding drum.

[0014] Optionally, the conveying assembly includes a fixed base, a conveying motor, a conveying belt and at least two conveying rollers, the two conveying rollers are rotatably connected to the end face of the fixed base and are arranged sequentially along a first direction, the conveying motor is fixedly connected to the fixed base and the output end is connected to the conveying roller, the conveying belt is sleeved on the outer surface of the conveying roller, the inner ring surface of the conveying belt is meshed with the outer surface of the conveying roller, and the outer ring surface of the conveying belt is provided with a slot.

[0015] The present invention provides a circuit board covering film laminating device, which has the following beneficial effects: The circuit board covering film laminating device conveys the circuit board placed on the carrying station in a first direction by a conveying component. When conveyed to the elastic pressing roller, the elastic pressing roller gradually presses the covering film between the unwinding mechanism and the winding mechanism onto the surface of the circuit board as the circuit board moves, so that the covering film is laminated to the surface of the circuit board. The covering film moves along the first direction with the circuit board. At this time, the covering film on the unwinding mechanism pulls the unwinding mechanism to rotate, so that the unwinding mechanism releases the wound covering film, and then the cutting component cuts the covering film along the edge of the circuit board, and then another circuit board is conveyed to the elastic pressing roller as the conveying component conveys it. The elastic pressing roller gradually presses the covering film onto the surface of the circuit board as the circuit board moves, which can generate a certain shear force and effectively reduce the generation of bubbles. The elastic squeezing of the elastic pressing roller can not only avoid scratching the circuit board or the covering film, but also make the covering film and the circuit board fit tightly, avoiding gaps that cause the covering film and the circuit board to not fit tightly and generate bubbles, thereby improving the quality of fitting, improving the bonding effect of the covering film, and also improving the aesthetics of the circuit board and the covering film after fitting. Continuous processing can be performed, which can effectively improve the efficiency of batch laminating covering films. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the installation distribution structure of the circuit board covering film laminating device of the present invention; Figure 2It is a schematic diagram of the three-dimensional structure of the circuit board covering film laminating device in the present invention; Figure 3 is a schematic diagram of the three-dimensional structure of the second edge cutting portion in the present invention; Figure 4 For the present invention Figure 1 Schematic diagram of the enlarged structure of part A.

[0017] In the figure: 100, conveying assembly; 110, fixed base; 120, conveying motor; 130, conveying roller; 140, conveyor belt; 150, card slot; 200, film roll assembly; 210, unwinding mechanism; 211, unwinding drum; 212, unwinding rod; 220, winding mechanism; 221, winding drum; 222, winding rod; 223, winding motor; 300, elastic pressure roller; 310, elastic roller body; 320, support rod; 400, cutting assembly; 410, first edge cutting part; 411, first cutting knife; 412, pad; 413, locking cover; 420, second edge cutting part; 421, lifting part; 422, driving motor; 423, cutting frame; 424, cutting member; 4241, second cutting knife; 4242, second support frame; 425, threaded rod; 430, positioning plate. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. All other embodiments obtained by ordinary technicians in the field without making creative work based on the embodiments of the present invention shall fall within the scope of protection of the present invention.

[0019] See also Figures 1 to 4 , the present invention provides a technical solution: a circuit board covering film laminating device, comprising a conveying component 100, a film rolling component 200, an elastic pressing roller 300 and a cutting component 400; The conveying assembly 100 is provided with a carrying station, the carrying station is used to place the circuit board, and the conveying assembly 100 is used to convey the circuit board placed on the carrying station along the first direction; The film roll assembly 200 includes an unwinding mechanism 210 and a rewinding mechanism 220, which are arranged in sequence above the conveying assembly 100 along a first direction, and a portion of the protective covering film is wound on the unwinding mechanism 210, and another portion is wound on the rewinding mechanism 220; The elastic pressing roller 300 is arranged above the covering film and between the unwinding mechanism 210 and the rewinding mechanism 220, and is used to press the covering film onto the surface of the circuit board located at the carrying station; The cutting assembly 400 is located above the covering film and is used to cut the covering film pressed on the circuit board; The conveying assembly 100 provides a basic platform for the covering film laminating process, and carries the circuit board, provides power for conveying along the first direction, stably places the circuit board by the carrying station, ensures the accuracy of laminating the covering film, and conveys the circuit board along the first direction, which can realize continuous operation and improve production efficiency. The unwinding mechanism 210 supplies new covering film to ensure continuous laminating, and the rewinding mechanism 220 recycles excess film to keep the working area clean. The cooperation of the unwinding mechanism 210 and the rewinding mechanism 220 can realize the tension control of the covering film, which is helpful for the laminating quality, that is, the unwinding mechanism 210 and the rewinding mechanism 220 are both provided with a certain damping structure, so that the unwinding mechanism 210 and the rewinding mechanism 220 can realize the tension control of the covering film, which is helpful for the laminating quality. The process of the winding mechanism 220 rotating to unwind and rewind generates a certain tension on the covering film to avoid wrinkles on the covering film. The elastic pressing roller 300 presses the covering film onto the surface of the circuit board. The elasticity ensures that the roller body applies uniform pressure to adapt to the slight undulations on the surface of the circuit board. Specifically, it can be a rubber roller to reduce bubbles and wrinkles and improve the lamination quality. It is located between the unwinding and rewinding mechanisms 220 and can form a certain shear force to avoid the generation of bubbles. The covering film that has been pressed onto the circuit board is cut by the cutting component 400 to ensure that the covering film matches the size of the circuit board. It is located above the covering film and can be cut immediately after lamination, saving time and helping to improve efficiency. When no circuit board passes through the elastic pressing roller 300 , the elastic pressing roller 300 presses the covering film onto the conveying assembly 100 , so that the traction force generated by the conveying assembly 100 traveling along with the covering film is released from the unwinding mechanism 210 .

[0020] In this embodiment, as a preferred solution, at least two elastic pressing rollers 300 are provided, and the elastic pressing roller 300 includes an elastic roller body 310 and a support rod 320. The end surface of the elastic roller body 310 is sleeved on the surface of the support rod 320 through the through hole, and the outer surface is tightly pressed against the covering film. The two elastic roller bodies 310 are located between the unwinding mechanism 210 and the winding mechanism 220, and the cutting assembly 400 is located between the two elastic roller bodies 310. The arrangement of the two elastic pressing rollers 300 ensures that the film is evenly and tightly attached to the surface of the circuit board. The first roller body initially presses and covers the surface of the circuit board. The second roller body further enhances the laminating effect, eliminates residual bubbles and wrinkles, and the second elastic pressing roller 300 can play a guiding role to prevent the covering film covering the circuit board from being affected by the height of the winding component and warping up before cutting after laminating, thereby affecting the laminating of the covering film and improving the cutting accuracy. The elastic roller body 310 is sleeved on the support rod 320 through the through hole, and the elastic roller body 310 can rotate on the support rod 320 to avoid wear on the covering film. The close connection between the laminating and cutting processes improves the efficiency of the overall operation.

[0021] In this embodiment, as a preferred solution, the cutting assembly 400 includes a first edge cutting portion 410, a second edge cutting portion 420 and a positioning plate 430. The fixed end of the first edge cutting portion 410 is slidably connected to the positioning plate 430 along the second direction. The second edge cutting portion 420 is arranged on the surface of the positioning plate 430 facing the covering film. The positioning plate 430 is arranged above the covering film and between the two elastic roller bodies 310. The first edge cutting portion 410 is used to cut one side edge of the covering film on the circuit board, and the second edge cutting portion 420 is used to cut the other side edge of the covering film adjacent to the circuit board. The fixed end of the first edge cutting portion 410 is slidably connected to the positioning plate 430 along the second direction, so that the first edge cutting portion 410 can be moved in the second direction. The first edge cutting portion 410 can be freely moved on the cover film to adapt to circuit boards and films of different widths. Through the sliding connection, the first edge cutting portion 410 can be accurately positioned on one side edge of the circuit board to ensure cutting accuracy. It can be adjusted according to circuit boards of different sizes to improve the scope of application. The first edge cutting portion 410 can continuously cut as the cover film moves, without the need for a power source, thereby improving efficiency and reducing operating steps. The positioning plate 430 fixes the first edge cutting portion 410 and the second edge cutting portion 420 in appropriate positions to ensure stability and accuracy of the cutting process. The positioning plate 430 is arranged above the cover film and between the two elastic rollers 310, ensuring that the cover film is cut after it is fully attached to the circuit board, thereby reducing the movement and error of the cover film.

[0022] In this embodiment, as a preferred solution, the first edge cutting portion 410 includes a first cutting knife 411, a pad 412 and a locking cover 413. The positioning plate 430 is slidably connected to the first cutting knife 411 through a sliding hole opened along the second direction. The pad 412 is fixedly connected to the surface of the first cutting knife 411 and abuts against the bottom of the positioning plate 430. The surface of the locking cover 413 is threadedly connected to the surface of the first cutting knife 411 passing through the sliding hole through a threaded hole. The first cutting knife 411 is slidably connected to the positioning plate 430 through the sliding hole, so that the first cutting knife 411 can move in the second direction, providing flexibility to adapt to circuit boards and films of different widths. The sliding connection design allows cutting The rapid adjustment of the position improves the scope of application and operational efficiency. The pad 412 is fixedly connected to the surface of the first cutting knife 411 and abuts against the bottom of the positioning plate 430, providing additional support to make the cutting knife more stable during the cutting process. By providing a stable cutting platform, the pad 412 helps to maintain cutting accuracy. The locking cover 413 is threadedly connected to the surface of the first cutting knife 411 through the sliding hole through the threaded hole, which can firmly fix the position of the cutting knife to prevent displacement during the cutting process. The threaded connection design allows the locking cover 413 to be quickly tightened and loosened, which is convenient for the operator to adjust the position of the cutting knife as needed, thereby improving operational flexibility.

[0023] In this embodiment, as a preferred solution, the second edge cutting part 420 includes a lifting part 421, a driving motor 422, a cutting frame 423 and a cutting piece. The fixed end of the lifting part 421 is arranged at the bottom of the positioning plate 430, and the cutting frame 423 is fixedly connected to the lifting end of the lifting part 421. The bottom of the cutting frame 423 is rotatably connected with a threaded rod 425. The fixed end of the cutting piece is threadedly connected to the outer surface of the threaded rod 425. The driving motor 422 is arranged at the end of the cutting frame 423 and the output end is fixedly connected to the end surface of the threaded rod 425, which is used to drive the threaded rod 425 to rotate so that the cutting piece slides along the second direction. The fixed end of the lifting part 421 is arranged at the bottom of the positioning plate 430. The cutting frame can be accurately adjusted by controlling the lifting part 421. The height of 423 ensures that the cutting piece can reach the appropriate position of the covering film. The driving motor 422 is arranged at the end of the cutting frame 423, and the output end is fixedly connected to the end face of the threaded rod 425, providing a stable power source to ensure the rotational movement of the threaded rod 425. The cutting frame 423 is fixedly connected to the lifting end of the lifting part 421, providing a stable support structure to ensure the stability of the cutting piece during the cutting process. The bottom of the cutting frame 423 is rotatably connected with the threaded rod 425. Through the rotation of the threaded rod 425, the cutting piece can slide accurately along the sliding guide rail at the bottom of the cutting frame 423 to ensure the accuracy of the cutting position. The threaded rod 425 realizes rotational movement by connecting with the driving motor 422, driving the cutting piece to slide along the second direction; The lifting part 421 can be an electric telescopic rod, which is a well-known technology and is only cited here. Its purpose is to drive the cutting frame 423 to rise and fall, so that the cutting piece is spaced apart from the covering film when the circuit board moves along the first direction. When the circuit board covered with the covering film moves to the second edge cutting part 420, the lifting part 421 lowers the cutting frame 423, so that the cutting piece penetrates the covering film, and then drives the threaded rod 425 to rotate through the driving motor 422, so that the cutting piece moves along the first direction, thereby cutting the covering film.

[0024] In this embodiment, as a preferred solution, the cutting piece includes a second cutting knife 4241 and a second support frame 4242. The second support frame 4242 is fixedly connected to the bottom of the cutting frame 423. The second cutting knife 4241 is fixedly connected to the second support frame 4242. The second support frame 4242 is used to support the second cutting knife 4241. The second cutting knife 4241 is used to cut the covering film through the setting.

[0025] In this embodiment, as a preferred solution, the unwinding mechanism 210 includes an unwinding drum 211 and an unwinding rod 212, one end of the unwinding rod 212 is fixedly connected to the fixed end of the conveying component 100, the unwinding drum 211 is sleeved on the outer surface of the unwinding rod 212, a part of the covering film is wound on the unwinding drum 211, and the unwinding rod 212 is used to support the unwinding drum 211, and the unwinding drum 211 can rotate on the unwinding rod 212 to release the wound covering film, and at the same time, the unwinding drum 211 can rotate as the conveying component 100 moves to pull the covering film to unwind, and there is a certain damping between the unwinding drum 211 and the unwinding rod 212.

[0026] In this embodiment, as a preferred solution, the winding mechanism 220 includes a winding drum 221, a winding rod 222 and a winding motor 223. One end of the winding rod 222 is fixedly connected to the fixed end of the conveying assembly 100, the winding drum 221 is sleeved on the outer surface of the winding rod 222, and another part of the covering film is wound on the winding drum 221. The winding motor 223 is fixedly connected to the winding rod 222 and at least the output end is connected to the winding drum 221. Through the connection between the winding drum 221 and the winding rod 222, the winding drum 221 can rotate on the winding rod 222. The winding drum 221 is provided with a winding motor for winding. The shell that collects another part of the covering film has a certain damping arranged between the shell and the winding drum 221. When the winding motor 223 drives the winding drum 221 to rotate, the shell can be driven to rotate through the connection between the winding drum 221 and the shell, and the cut covering film is wound up through the shell. When there is a speed difference between the covering film on the conveying component 100 and the winding drum 221 (i.e., the winding speed of the winding drum 221 is greater than the speed at which the covering film moves along with the conveying component 100), the shell overcomes the friction between the winding drum 221 and keeps not rotating to avoid affecting the fit of the covering film.

[0027] In this embodiment, as a preferred solution, the conveying assembly 100 includes a fixed base 110, a conveying motor 120, a conveying belt 140 and at least two conveying rollers 130. The two conveying rollers 130 are both rotatably connected to the end surface of the fixed base 110 and are arranged in sequence along the first direction. The conveying motor 120 is fixedly connected to the fixed base 110 and the output end is connected to the conveying roller 130. The conveying belt 140 is sleeved on the outer surface of the conveying roller 130. The inner ring surface of the conveying belt 140 and the outer surface of the conveying roller 130 are meshed with each other. The outer ring surface of the conveying belt 140 is provided with a card slot 150. Through the action of the fixed base 110, the conveying roller 130 and the conveying motor 120 are supported. By driving the conveying motor 120 to rotate the conveying roller 130, the conveying belt 140 can be moved along the first direction. Through the card slot 150 provided on the conveying belt 140, the circuit board can be placed. By the conveying belt 140 moving along the first direction, the circuit board conveying belt 140 placed in the card slot 150 can be moved along the first direction.

[0028] In this embodiment, as a preferred solution, a control component is further included, the control component includes a control module, a driver and a detection unit, the input end of the control module is electrically connected to the output end of the detection unit, the output end of the control module is electrically connected to the input end of the driver, and the output end of the driver is electrically connected to the driving end of the conveying component 100, the winding mechanism 220 and the cutting component 400; The detection unit may be a light sensor, an infrared sensor or a visual detection system, all of which are known technologies; The control module is a prior art known in the art and is only used for reference. The purpose is to drive the conveying motor 120 to operate through a driver so that the conveying roller 130 rotates and drives the conveying belt 140 to move forward, thereby conveying the circuit board placed in the card slot 150. When conveying to the elastic pressing roller 300, the elastic pressing roller 300 gradually presses the covering film between the unwinding mechanism 210 and the winding mechanism 220 onto the surface of the circuit board as the circuit board moves, so that the covering film fits the surface of the circuit board. The covering film moves along the first direction with the circuit board. Through the action of the first cutting knife 411, the covering film pressed on the circuit board is cut during the process of the covering film and the circuit board moving along the conveying belt 140 along the first direction. The position of the circuit board is detected by the detection unit. When the circuit board is located at the second side When at the corresponding position along the cutting portion 420, the control module receives the signal from the detection unit, stops the operation of the conveying motor 120, and controls the lifting end of the lifting portion 421 through the driver to make the cutting frame 423 drive the second cutting knife 4241 to descend, so that the second cutting knife 4241 penetrates the covering film. Then the control module operates the driving motor 422 through the driver, so that the second cutting knife 4241 moves along the second direction according to the predetermined travel length along the threaded cooperation between the second support frame 4242 and the threaded rod 425 for cutting. When the cutting is completed, the control module resets the driving motor 422 through the driver, and resets the lifting end of the lifting portion 421 at the same time. During this process, the control module drives the winding motor 223 of the winding mechanism 220 through the driver to drive the winding rod 222 to wind up the covering film.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A circuit board cover film laminating device, characterized in that: It comprises a conveying assembly (100), a film rolling assembly (200), an elastic pressing roller (300) and a cutting assembly (400); The conveying component (100) is provided with a carrying station, the carrying station is used to place a circuit board, and the conveying component (100) is used to convey the circuit board placed on the carrying station along a first direction; The film roll assembly (200) comprises an unwinding mechanism (210) and a rewinding mechanism (220), wherein the unwinding mechanism (210) and the rewinding mechanism (220) are arranged in sequence above the conveying assembly (100) along a first direction, and a portion of the protective covering film is wound on the unwinding mechanism (210), and another portion is wound on the rewinding mechanism (220); The elastic pressing roller (300) is arranged above the covering film and between the unwinding mechanism (210) and the rewinding mechanism (220), and is used to press the covering film onto the surface of the circuit board located at the bearing station; The cutting assembly (400) is located above the covering film and is used to cut the covering film pressed onto the circuit board.

2. A circuit board cover film laminating device according to claim 1, characterized in that: At least two elastic pressing rollers (300) are provided, and the elastic pressing rollers (300) comprise an elastic roller body (310) and a support rod (320); the end surface of the elastic roller body (310) is sleeved on the surface of the support rod (320) through a through hole, and the outer surface is tightly pressed against the covering film; the two elastic roller bodies (310) are located between the unwinding mechanism (210) and the rewinding mechanism (220); and the cutting assembly (400) is located between the two elastic roller bodies (310).

3. A circuit board cover film laminating device according to claim 2, characterized in that: The cutting assembly (400) comprises a first edge cutting portion (410), a second edge cutting portion (420) and a positioning plate (430); the fixed end of the first edge cutting portion (410) is slidably connected to the positioning plate (430) along a second direction; the second edge cutting portion (420) is arranged on a surface of the positioning plate (430) facing the covering film; and the positioning plate (430) is arranged above the covering film and between the two elastic roller bodies (310).

4. A circuit board cover film laminating device according to claim 3, characterized in that: The first edge cutting portion (410) comprises a first cutting knife (411), a backing plate (412) and a locking cover (413); the positioning plate (430) is slidably connected to the first cutting knife (411) via a sliding hole opened along the second direction; the backing plate (412) is fixedly connected to the surface of the first cutting knife (411) and abuts against the bottom of the positioning plate (430); and the surface of the locking cover (413) is threadedly connected to the surface of the first cutting knife (411) passing through the sliding hole via a threaded hole.

5. The circuit board cover film laminating device according to claim 3, characterized in that: The second edge cutting portion (420) comprises a lifting portion (421), a driving motor (422), a cutting frame (423) and a cutting piece (424); the fixed end of the lifting portion (421) is arranged at the bottom of the positioning plate (430); the cutting frame (423) is fixedly connected to the lifting end of the lifting portion (421); a threaded rod (425) is rotatably connected to the bottom of the cutting frame (423); the fixed end of the cutting piece (424) is threadedly connected to the outer surface of the threaded rod (425); the driving motor (422) is arranged at the end of the cutting frame (423) and the output end is fixedly connected to the end surface of the threaded rod (425), and is used to drive the threaded rod (425) to rotate so that the cutting piece (424) slides along the second direction.

6. A circuit board cover film laminating device according to claim 5, characterized in that: The cutting member (424) comprises a second cutting knife (4241) and a second support frame (4242), wherein the second support frame (4242) is fixedly connected to the bottom of the cutting frame (423), and the second cutting knife (4241) is fixedly connected to the second support frame (4242).

7. The circuit board cover film laminating device according to claim 1, characterized in that: It also includes a control component, which includes a control module, a driver and a detection unit, the input end of the control module is electrically connected to the output end of the detection unit, the output end of the control module is electrically connected to the input end of the driver, and the output end of the driver is electrically connected to the driving ends of the conveying component (100), the winding mechanism (220) and the cutting component (400).

8. The circuit board cover film laminating device according to claim 1, characterized in that: The unwinding mechanism (210) comprises an unwinding drum (211) and an unwinding rod (212), one end of the unwinding rod (212) being fixedly connected to a fixed end of the conveying assembly (100), the unwinding drum (211) being sleeved on the outer surface of the unwinding rod (212), and a portion of the covering film being wound on the unwinding drum (211).

9. The circuit board cover film laminating device according to claim 1, characterized in that: The winding mechanism (220) comprises a winding drum (221), a winding rod (222) and a winding motor (223); one end of the winding rod (222) is fixedly connected to a fixed end of the conveying assembly (100); the winding drum (221) is sleeved on the outer surface of the winding rod (222); another part of the covering film is wound on the winding drum (221); and the winding motor (223) is fixedly connected to the winding rod (222) and at least the output end is connected to the winding drum (221).

10. The circuit board cover film laminating device according to claim 1, characterized in that: The conveying assembly (100) comprises a fixed base (110), a conveying motor (120), a conveying belt (140) and at least two conveying rollers (130); the two conveying rollers (130) are both rotatably connected to the end surface of the fixed base (110) and are arranged in sequence along a first direction; the conveying motor (120) is fixedly connected to the fixed base (110) and the output end is connected to the conveying roller (130); the conveying belt (140) is sleeved on the outer surface of the conveying roller (130); the inner ring surface of the conveying belt (140) is meshed with the outer surface of the conveying roller (130); and the outer ring surface of the conveying belt (140) is provided with a card slot (150).

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