Motor FPC ultrathin cover film processing technology and device

Abstract

The invention relates to the technical field of FPC ultra-thin cover film processing, and discloses a motor FPC ultra-thin cover film processing technology and device.The motor FPC ultra-thin cover film processing device comprises a fixing base, an unwinding assembly, a guide roller set, a conveying assembly, a laser cutting assembly and an attaching assembly and further comprises a bulldozing mechanism arranged on the conveying assembly; a first electric push rod drives a push roller to press down and fit an ultrathin cover film, a second electric push rod is linked with a synchronous rod to drive the push roller to roll directionally to flatten and smooth stubborn deformation which cannot be eliminated by a guide roller set, it is ensured that the ultrathin cover film is flatly fit with a workbench, meanwhile, a flattening reference is provided for laser cutting, meanwhile, a foundation is built for follow-up fitting, and the production efficiency is improved. And virtual adhesion and poor contact caused by the fact that the periphery of the opening cannot be compacted are prevented, the high-precision machining requirement of the ultra-thin cover film is met, and compared with a cover film with the conventional thickness, the ultra-thin cover film can reduce signal loss and electromagnetic interference in cooperation with the ultra-thin cover film.

Description

Technical Field

[0001] This invention belongs to the field of FPC ultra-thin cover film processing technology, specifically relating to a motor FPC ultra-thin cover film processing technology and apparatus. Background Technology

[0002] Robot motor-type FPCs require thick copper (to carry high current). According to industry standards, copper thickness > 45μm requires a conventional cover film with a 35μm adhesive layer. However, the space inside the motor limits the surface insulation film of a single FPC to ≤ 15μm. Conventional cover films (the total thickness of film + adhesive far exceeds 15μm) cannot meet this requirement. Ultra-thin cover films (total thickness 12.5μm) precisely match this space limitation, achieving compatibility between thick copper and thin insulation film. Furthermore, the thickness of conventional cover films increases signal transmission loss and electromagnetic interference. The thin design of ultra-thin cover films reduces the thickness of the signal transmission medium, reduces signal loss, and has better flexibility to adapt to the slight deformation requirements during motor operation. At the same time, the black PI film can help reduce electromagnetic interference and improve the stability of FPC use.

[0003] Furthermore, in existing technologies, conventional cover films have a large amount of excess adhesive, and the opening can exceed the pads or press against the traces, relying on excess adhesive to compact the traces. However, ultra-thin cover films, through the design of the opening located in the middle of the pads, avoid the traces and use limited excess adhesive to ensure that the area around the opening is compacted with the pad plane, avoiding loose adhesion. This is suitable for the high-precision bonding requirements of FPCs. In addition, conventional cover films are thicker and have slightly stronger rigidity, with less curling and wavy bending. While existing guide roller groups can initially eliminate deformation by guiding the film in different directions during transport, ultra-thin cover films are extremely flexible and, in the winding state... The curling and wavy bending are more severe. The leveling guide rollers of the guide roller group can only achieve preliminary flattening during the conveying process. They cannot orient and pressurize the stubborn wrinkles in the local area of ​​the film material or the area to be processed before cutting. The residual deformation will affect the cutting accuracy. At the same time, the opening of the ultra-thin cover film is designed in the middle of the pad, which requires extremely high precision in cutting and bonding. If there are tiny wrinkles or curling in the ultra-thin cover film, it will cause the opening to deviate from the pad during laser cutting. During subsequent bonding, the area around the opening cannot be pressed firmly against the pad plane, causing problems such as poor adhesion and poor contact. Summary of the Invention

[0004] This invention provides a process and apparatus for processing ultra-thin cover film for motor FPC, which solves the technical problems in related technologies. Conventional cover film is suitable for thick copper but exceeds the space limit of motor. Although ultra-thin cover film meets the requirements of space and high-precision bonding, it is extremely flexible and has more severe curling and wrinkling. Existing guide roller groups can only initially flatten it, and residual deformation can easily lead to cutting deviation and poor bonding.

[0005] This invention provides a processing device for ultra-thin cover film of motor FPC, including a fixed base, an unwinding assembly, a guide roller group, a conveying assembly, a laser cutting assembly, and a bonding assembly. The unwinding assembly, the guide roller group, and the conveying assembly are sequentially arranged on the upper surface of the fixed base along the conveying direction of the ultra-thin cover film. The laser cutting assembly is fixed on the side of the fixed base near the conveying assembly, and the bonding assembly is fixed on the side of the laser cutting assembly away from the fixed base. It also includes a leveling mechanism mounted on the conveying assembly. The leveling mechanism includes a connecting plate, a first electric push rod, a connecting frame, a lifting frame, a second electric push rod, a push plate, a synchronizing rod, a support plate, and a push roller. The connecting plate is mounted on the conveying assembly. The first electric push rod is fixedly connected to the upper surface of the connecting plate. The connecting frame is fixedly connected to the output end of the first electric push rod. The lifting frame is fixedly connected to the upper surface of the connecting frame. The second electric push rod is fixedly connected to the lower surface of the lifting frame. The push plate is fixedly connected to the output end of the second electric push rod. The synchronizing rod is rotatably connected to the outer surface of the push plate. The support plate is slidably connected to the surface of the connecting frame and rotatably connected to the synchronizing rod. The push roller is rotatably connected to the surface of the support plate.

[0006] In a preferred embodiment, the unwinding assembly includes a film roll and a drive motor. The drive motor is fixed to the upper surface of the fixed base by a bracket. The axis of the film roll is fixed to the output end of the drive motor. The guide roller group includes a leveling guide roller and a steering guide roller. Both ends of the leveling guide roller and the steering guide roller are hinged to the upper surface of the fixed base by bearing seats. The unwinding assembly is connected to the guide roller group.

[0007] In a preferred embodiment, the conveying assembly includes a fixed frame, a first motor, a conveying roller, and a pressure roller. The fixed frame is fixedly connected to the upper surface of the fixed base, the first motor is fixedly connected to the surface of the fixed frame, and the conveying roller and the pressure roller are rotatably connected to the surface of the fixed frame. The pressure roller is located directly above the conveying roller, and the axis of the conveying roller is fixedly connected to the output end of the first motor.

[0008] In a preferred embodiment, the ultra-thin covering film is fixed on the film roll, and the end of the ultra-thin covering film passes sequentially through the outside of the leveling guide roller and the turning guide roller, and passes between the conveying roller and the pressure roller.

[0009] In a preferred embodiment, the leveling mechanism is located on the side of the conveying assembly close to the laser cutting assembly. The connecting plate is fixedly connected to the surface of the fixed frame. The output directions of the first electric push rod and the second electric push rod are vertically arranged. One end of the synchronizing rod is rotatably connected to the push plate, and the other end is rotatably connected to the support plate. The connecting frame has a first groove along the conveying direction of the ultra-thin covering film. The support plate is slidably connected in the first groove. The support plate has a rotating hole along the horizontal and vertical conveying direction of the ultra-thin covering film. The shaft end of the push roller is rotatably connected in the rotating hole. The push roller is located above the worktable of the laser cutting assembly.

[0010] In a preferred embodiment, two sets of connecting plates, first electric push rods, synchronizing rods, and support plates are provided, and the two sets of connecting plates, first electric push rods, synchronizing rods, and support plates are symmetrically distributed along the side axis of the connecting frame.

[0011] In a preferred embodiment, the flattening mechanism further includes a guide rail and a guide rod, with the guide rail fixedly connected to the lower surface of the connecting frame and the guide rod slidably connected to the inner side of the guide rail.

[0012] In a preferred embodiment, the guide rail has a second groove along the conveying direction of the ultra-thin cover film, the guide rod is slidably connected in the second groove, and the support plate is fixedly connected to one end of the guide rod near the laser cutting assembly.

[0013] In a preferred embodiment, the flattening mechanism further includes a connecting plate, a slide cylinder, a slide column, a pressure strip, and a spring. The connecting plate is fixedly connected to the lower surface of the push plate, the slide cylinder is fixedly connected to the lower surface of the connecting plate, the slide column is slidably connected inside the slide cylinder, the pressure strip is fixedly connected to one end face away from the slide cylinder, and a spring is fixedly connected between the end of the slide column away from the pressure strip and the slide cylinder. The pressure strip is positioned above the laser cutting assembly worktable and is positioned on the side of the push roller close to the conveying assembly.

[0014] A process for processing ultra-thin cover film for motor FPC includes the following steps: Step 1: Fix the roll of ultra-thin cover film to the unwinding assembly, and after initial leveling by the guide roller group, it is stably conveyed by the conveying assembly; Step 2: After the ultra-thin cover film is conveyed to the laser cutting component worktable, the flattening mechanism first flexibly fixes the edge of the ultra-thin cover film with pressure strips, and then the push roller rolls flatten it in a directional manner, with the guide rail limiting the trajectory to avoid deviation; Step 3: After the CCD locator accurately positions the laser cutting component, the laser cutting component cuts and trims the opening according to the preset path. Step 4: Manually move the cut film material to the bonding assembly, align it with the FPC substrate, and complete the single sheet / board bonding by pre-pressing for degassing, hot pressing for curing, and cooling for shaping.

[0015] The beneficial effects of this invention are as follows: 1. This invention uses a first electric push rod to drive a push roller to press down and adhere the ultra-thin cover film. A second electric push rod, in conjunction with a synchronous rod, drives the push roller to roll and flatten it. With the push roller having an optional micro-heating function, it smooths out stubborn deformations that the guide roller group cannot eliminate, ensuring that the ultra-thin cover film is flat and adheres to the worktable. At the same time, it provides a flat benchmark for laser cutting and lays a solid foundation for subsequent bonding, preventing poor adhesion and contact caused by the inability to press firmly around the opening. It is suitable for the high-precision processing requirements of ultra-thin cover films. Compared with conventional thickness cover films, using ultra-thin cover films can reduce signal loss and electromagnetic interference.

[0016] 2. When the leveling mechanism starts its leveling action, the second electric push rod pushes the push plate downward, and the synchronous rod drives the support plate to slide along the first slide groove of the connecting frame. At the same time, the guide rod fixedly connected to the support plate slides synchronously along the second slide groove of the guide rail. The guide rail and the guide rod precisely limit the movement trajectory of the push roller, ensuring that it advances along the conveying direction of the ultra-thin cover film and avoiding deviation during the leveling process.

[0017] 3. When the first electric push rod extends and retracts downward, it first drives the pressure strip to adhere to the edge of the ultra-thin cover film on the laser cutting assembly worktable. The sliding column compresses the spring in the sliding cylinder, and the spring force makes the pressure strip flexibly press the edge of the film material. At the same time, the second electric push rod drives the push plate to move down, and drives the push roller to advance along the guide rail trajectory through the synchronous rod. The pressure strip always presses the edge tightly, forming a synergistic effect of front-end fixation and rear-end flattening, eliminating wrinkles and avoiding the ultra-thin cover film on the worktable from shifting during the flattening process. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the external structure of the motor FPC ultra-thin cover film processing technology and device of the present invention.

[0019] Figure 2 This is a schematic diagram of the right side of the structure of the motor FPC ultra-thin cover film processing technology and device of the present invention.

[0020] Figure 3 This is a schematic diagram of the external structure of the conveying component and the leveling mechanism of the present invention.

[0021] Figure 4 This is a schematic diagram of the external structure of the conveying component of the present invention.

[0022] Figure 5 This is a schematic diagram of the external structure of the flattening mechanism of the present invention.

[0023] Figure 6 This is a front cross-sectional view of the flattening mechanism of the present invention.

[0024] Figure 7 This is a schematic diagram of the unfolded structure of the connecting plate and the connected components of the present invention.

[0025] In the diagram: 1. Fixed base; 2. Unwinding assembly; 3. Guide roller group; 4. Conveying assembly; 5. Flattening mechanism; 6. Laser cutting assembly; 7. Bonding assembly; 41. Fixed frame; 42. First motor; 43. Conveying roller; 44. Pressure roller; 51. Connecting plate; 511. First electric push rod; 512. Connecting frame; 52. Lifting frame; 521. Second electric push rod; 522. Push plate; 523. Synchronizing rod; 524. Guide rail; 525. Guide rod; 526. Support plate; 527. Push roller; 53. Connecting plate; 531. Slide cylinder; 532. Slide column; 533. Pressure strip; 534. Spring. Detailed Implementation

[0026] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0027] To address the limitations of conventional cover films for thick copper but constrained by space constraints in motor applications, and the problem that while ultra-thin cover films meet the requirements for space and high-precision bonding, their extreme flexibility leads to more severe curling and wrinkling, existing guide roller assemblies can only achieve preliminary flattening, and residual deformation can easily cause cutting misalignment and incomplete bonding, this invention provides the following technical solution: like Figure 1 , Figure 2 , Figure 5 As shown, a motor FPC ultra-thin cover film processing device includes a fixed base 1, an unwinding assembly 2, a guide roller group 3, a conveying assembly 4, a laser cutting assembly 6, and a bonding assembly 7. The unwinding assembly 2, the guide roller group 3, and the conveying assembly 4 are sequentially arranged on the upper surface of the fixed base 1 along the ultra-thin cover film conveying direction. The laser cutting assembly 6 is fixed on the side of the fixed base 1 close to the conveying assembly 4, and the bonding assembly 7 is fixed on the side of the laser cutting assembly 6 away from the fixed base 1. It also includes a leveling mechanism 5 disposed on the conveying assembly 4. The leveling mechanism 5 includes a connecting plate 51, a first electric push rod 511, a connecting frame 512, a lifting frame 52, a second electric push rod 521, a push plate 522, a synchronizing rod 523, a support plate 526, and a push roller 527. The connecting plate 51 is disposed on the conveying assembly 4. The first electric push rod 511 is fixedly connected to the upper surface of the connecting plate 51. The connecting frame 512 is fixedly connected to the output end of the first electric push rod 511. The lifting frame 52 is fixedly connected to the upper surface of the connecting frame 512. The second electric push rod 521 is fixedly connected to the lower surface of the lifting frame 52. The push plate 522 is fixedly connected to the output end of the second electric push rod 521. The synchronizing rod 523 is rotatably connected to the outer surface of the push plate 522. The support plate 526 is slidably connected to the surface of the connecting frame 512 and rotatably connected to the synchronizing rod 523. The push roller 527 is rotatably connected to the surface of the support plate 526.

[0028] like Figure 1 , Figure 2 As shown, specifically, the unwinding assembly 2 includes a film roll and a drive motor. The drive motor is fixed to the upper surface of the fixed base 1 by a bracket. The axis of the film roll is fixed to the output end of the drive motor. The guide roller group 3 includes a leveling guide roller and a steering guide roller. Both ends of the leveling guide roller and the steering guide roller are hinged to the upper surface of the fixed base 1 by bearing seats. The unwinding assembly 2 is connected to the guide roller group 3. like Figure 1 , Figure 4As shown, the conveying assembly 4 includes a fixed frame 41, a first motor 42, a conveying roller 43, and a pressure roller 44. The fixed frame 41 is fixedly connected to the upper surface of the fixed base 1, the first motor 42 is fixedly connected to the surface of the fixed frame 41, and the conveying roller 43 and the pressure roller 44 are rotatably connected to the surface of the fixed frame 41. The pressure roller 44 is located directly above the conveying roller 43, and the axis of the conveying roller 43 is fixedly connected to the output end of the first motor 42. The ultra-thin covering film is fixed on the film roll. The end of the ultra-thin covering film passes through the outside of the leveling guide roller and the turning guide roller in sequence, and passes between the conveying roller 43 and the pressure roller 44. like Figure 1 , Figure 2 As shown, the laser cutting assembly 6 includes a laser emitter, a focusing head, a CCD positioner, and a moving device. The moving device is the displacement execution unit of this assembly, and it is fixedly assembled on the side of the fixed base 1, serving as the mounting and displacement carrier for the laser emitter, focusing head, and CCD positioner. The X / Y axis linear module (integrating a ball screw and guide rail) inside the moving device is fixedly mounted on the worktable surface of the moving device. The servo motor provides the power source for the X / Y axis linear module, forming a transmission connection with the ball screw inside the X / Y axis linear module. The linear module enables linear motion in the X and Y directions. The slider is slidably mounted on the guide rail of the X / Y linear module and is connected to the ball screw drive within the X / Y linear module. The mounting plate is fixedly connected to the slider and moves synchronously along the guide rail in the X / Y direction. The laser emitter, focusing head, and CCD positioner are all fixedly mounted on the surface of the mounting plate. Driven by the servo motor and the X / Y linear module, they move synchronously in the X and Y directions with the mounting plate. The CCD positioner provides a reference for the displacement and cutting positioning of this component. like Figure 1 , Figure 2 As shown, the bonding component 7 includes a visual positioning platform, a pre-pressure roller, a hot-press roller, a cooling guide roller, and a temperature or pressure control system. The visual positioning platform is the basic operation and positioning reference platform for the bonding process. As a pre-positioning station for the pre-pressure roller and the hot-press roller, it provides visual positioning basis for the position calibration of the material before bonding. The pre-pressure roller, the hot-press roller, and the cooling guide roller are arranged sequentially along the material conveying direction to form a continuous operation station for material bonding. After the material is calibrated by the visual positioning platform, it sequentially passes through the pre-pressure roller to complete the initial bonding, the hot-press roller to complete the high-temperature pressing, and the cooling guide roller to complete the cooling and shaping after pressing. The temperature or pressure control system is the core control unit of the bonding component 7, and establishes electrical signal and control connections with the hot-press roller and the pre-pressure roller respectively. Furthermore, the specific composition and principle of the above-mentioned unwinding assembly 2, guide roller group 3, laser cutting assembly 6, and bonding assembly 7 are existing technologies, and will not be described in detail here. like Figure 1 , Figure 5 , Figure 6As shown, the flattening mechanism 5 is located on the side of the conveying assembly 4 near the laser cutting assembly 6. The connecting plate 51 is fixedly connected to the surface of the fixed frame 41. The output directions of the first electric push rod 511 and the second electric push rod 521 are arranged vertically. One end of the synchronizing rod 523 is rotatably connected to the push plate 522, and the other end is rotatably connected to the support plate 526. The connecting frame 512 has a first sliding groove along the conveying direction of the ultra-thin covering film. The support plate 526 is slidably connected in the first sliding groove. The support plate 526 has a rotating hole along the horizontal and vertical conveying direction of the ultra-thin covering film. The shaft end of the push roller 527 is rotatably connected in the rotating hole. The push roller 527 is located above the worktable of the laser cutting assembly 6. The push roller 527 can preferably be a micro-heated guide roller to soften the ultra-thin covering film and reduce the elastic deformation resistance of the ultra-thin covering film. The connecting plate 51, the first electric push rod 511, the synchronizing rod 523, and the support plate 526 are all provided in two sets. The two sets of connecting plates 51, the first electric push rod 511, the synchronizing rod 523, and the support plate 526 are symmetrically distributed along the side axis of the connecting frame 512.

[0029] It should be further explained that during use, the rolled ultra-thin covering film is fixed on the film roll of the unwinding assembly 2. The end of the ultra-thin covering film is pulled around the leveling guide roller and the turning guide roller of the guide roller group 3 in sequence, and then passes between the conveying roller 43 and the pressure roller 44 of the conveying assembly 4. The conveying speed of the conveying assembly 4 and the cutting parameters of the laser cutting assembly 6 are set. The leveling mechanism 5 is reset to its initial state, that is, the push roller 527 is set above the worktable of the laser cutting assembly 6 and does not contact the ultra-thin covering film. The drive motor of the unwinding assembly 2 and the first motor 42 of the conveying assembly 4 are started. The ultra-thin covering film is released under the drive of the drive motor and is initially partially eliminated by the leveling guide roller of the guide roller group 3. The film curls up and is then held stably by the conveyor rollers 43 and 44 to the flattening mechanism 5, extending to the surface of the worktable of the laser cutting assembly 6. When the ultra-thin cover film is conveyed to the surface of the worktable, i.e., when the ultra-thin cover film is directly below the push roller 527, the first electric push rod 511 is activated to extend and retract downwards, driving the connecting frame 512 and the push roller 527 to move down synchronously until the push roller 527 adheres to the upper surface of the film. Then, the second electric push rod 521 pushes the push plate 522 downwards, which, through the synchronizing rod 523, drives the two sets of support plates 526 to slide along the first chute in the direction of conveying the ultra-thin cover film. The push roller 527 rolls and smooths out the curls and wrinkles of the ultra-thin cover film. In addition, the push roller 527 can be used to smooth out the curls and wrinkles of the ultra-thin cover film. The laser cutting assembly 6 heats the ultra-thin cover film, improving the leveling effect and ensuring the film adheres smoothly to the worktable. The CCD locator on the laser cutting assembly 6 precisely positions the marked points on the ultra-thin cover film. A servo motor drives the X / Y axis linear module, causing the laser emitter and focusing head to cut and trim along a preset path. The cut opening and trimmed ultra-thin cover film can then be placed manually on the bonding assembly 7. The visual positioning platform of the bonding assembly 7 precisely aligns the FPC substrate with the cut ultra-thin cover film. The ultra-thin cover film first passes through a pre-pressure roller to expel air, then through a hot pressure roller to cure and bond the epoxy adhesive layer. Finally, it is cooled and shaped by a cooling guide roller, thus achieving… The FPC ultra-thin cover film processing flow involves the first electric push rod 511 driving the push roller 527 to press down and adhere the ultra-thin cover film. The second electric push rod 521, in conjunction with the synchronous rod 523, drives the push roller 527 to roll and flatten in a directional manner. The push roller 527 can be equipped with a micro-heating function to smooth out the stubborn deformation that the guide rollers 3 cannot eliminate, ensuring that the ultra-thin cover film is flat and adheres to the worktable. At the same time, it provides a flat benchmark for laser cutting and lays a solid foundation for subsequent bonding, preventing poor adhesion and contact caused by the inability to press firmly around the opening. It is suitable for the processing requirements of ultra-thin cover film. Compared with conventional thickness cover film, the use of ultra-thin cover film can reduce signal loss and electromagnetic interference.

[0030] like Figure 5 , Figure 6As shown, in order to ensure that the push roller 527 can be pushed along the conveying direction of the ultra-thin cover film, the flattening mechanism 5 also includes a guide rail 524 and a guide rod 525. The guide rail 524 is fixedly connected to the lower surface of the connecting frame 512, and the guide rod 525 is slidably connected to the inner side of the guide rail 524.

[0031] like Figure 6 As shown, specifically, the guide rail 524 has a second groove along the conveying direction of the ultra-thin cover film, the guide rod 525 is slidably connected in the second groove, and the support plate 526 is fixedly connected to one end of the guide rod 525 near the laser cutting assembly 6.

[0032] It should be further explained that during use, when the leveling mechanism 5 starts the leveling action, the second electric push rod 521 pushes the push plate 522 downward, and the synchronous rod 523 drives the support plate 526 to slide along the first slide groove of the connecting frame 512. At the same time, the guide rod 525 fixedly connected to the support plate 526 slides synchronously along the second slide groove of the guide rail 524. The guide rail 524 and the guide rod 525 precisely limit the movement trajectory of the push roller 527 to ensure that it advances along the conveying direction of the ultra-thin cover film and avoids deviation during the leveling process.

[0033] like Figure 1 , Figure 7 As shown, the pushing mechanism 5 also includes a connecting plate 53, a sliding cylinder 531, a sliding column 532, a pressure strip 533, and a spring 534. The connecting plate 53 is fixedly connected to the lower surface of the push plate 522, the sliding cylinder 531 is fixedly connected to the lower surface of the connecting plate 53, the sliding column 532 is slidably connected inside the sliding cylinder 531, the pressure strip 533 is fixedly connected to one end face away from the sliding cylinder 531, and a spring 534 is fixedly connected between the end of the sliding column 532 away from the pressure strip 533 and the sliding cylinder 531.

[0034] like Figure 5 As shown, specifically, the pressure strip 533 is positioned above the worktable of the laser cutting assembly 6, and the pressure strip 533 is positioned on the side of the push roller 527 close to the conveying assembly 4.

[0035] It should be further explained that during use, when the first electric push rod 511 extends and retracts downward, the connecting plate 53 moves down synchronously with the push plate 522, first driving the pressure strip 533 to adhere to the ultra-thin cover film on the edge of the laser cutting component 6 worktable. The slide column 532 compresses the spring 534 in the slide cylinder 531, and the elasticity of the spring 534 makes the pressure strip 533 flexibly press the ultra-thin cover film to prevent the ultra-thin cover film from shifting. Then, the push roller 527 adheres to the upper surface of the ultra-thin cover film, and the second electric push rod 521 drives the push plate 522 to move down. Through the synchronous rod 523, the push roller 527 is driven to advance directionally along the guide rail 524. The pressure strip 533 always presses the edge, forming a synergistic effect of front-end fixation and rear-end flattening, eliminating wrinkles and preventing the ultra-thin cover film on the worktable from shifting during the flattening process.

[0036] A process for processing ultra-thin cover film for motor FPC includes the following steps: Step 1: Fix the roll of ultra-thin cover film to the unwinding assembly 2, and after initial leveling by the guide roller group, it is stably conveyed by the conveying assembly 4; Step 2: After the ultra-thin cover film is conveyed to the worktable of the laser cutting component 6, the pushing mechanism 5 first flexibly fixes the edge of the ultra-thin cover film by the pressure strip 533, and then pushes it flat by the push roller 527 in a directional rolling motion. Micro heating is optional, and the guide rail 524 limits the trajectory to avoid deviation. Step 3: After the CCD locator accurately positions the laser, the laser cutting component 6 cuts and trims along the preset path. Step 4: Manually move the cut film material to the bonding assembly 7, align it with the FPC substrate, and complete the single sheet / board bonding by pre-pressing for degassing, hot pressing for curing, and cooling for shaping.

[0037] It should be further explained that the rolled ultra-thin cover film is coaxially fixed to the unwinding assembly 2, and a constant tension is set to prevent deformation or loosening. After initial leveling by the guide roller group 3, it is stably conveyed by the conveying assembly 4, ensuring that the conveying direction of the ultra-thin cover film is consistent with the axis of the equipment. After the film material is sent to the worktable of the laser cutting assembly 6, the flattening mechanism 5 first presses the edge of the ultra-thin cover film with the pressure strip 533 to prevent displacement. Then, the push roller 527 adheres to the ultra-thin cover film and rolls it flat along the guide rail 524. The micro-heating function can be activated to adapt the temperature to the characteristics of the film material and eliminate... In addition to preventing stubborn deformation, the CCD locator captures the marking points of the ultra-thin cover film for precise positioning, and the system automatically corrects deviations. The laser cutting component 6 cuts along the preset path, and air blowing protection is used to avoid burrs and scorching, ensuring a smooth cut and meeting high precision requirements. The ultra-thin cover film is manually transferred to the bonding component 7, and precisely aligned with the FPC substrate by the vision positioning platform. It then undergoes pre-pressure degassing, hot-press curing, and cooling shaping in sequence, with segmented control of pressure and temperature to ensure tight bonding without loose adhesion or bubbles, thus improving dimensional stability.

[0038] The embodiments described above are merely examples of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A motor FPC ultra-thin cover film processing device, comprising a fixed seat (1), a unwinding assembly (2), a guide roller group (3), a conveying assembly (4), a laser cutting assembly (6) and a laminating assembly (7), the unwinding assembly (2), the guide roller group (3) and the conveying assembly (4) are sequentially arranged on the upper surface of the fixed seat (1) along the conveying direction of the ultra-thin cover film, the laser cutting assembly (6) is fixed on the side surface of the fixed seat (1) close to the conveying assembly (4), and the laminating assembly (7) is fixed on the side surface of the laser cutting assembly (6) away from the fixed seat (1). characterized in that It also includes a push flat mechanism (5) arranged on the conveying assembly (4), the push flat mechanism (5) includes a connecting plate (51), a first electric push rod (511), a connecting frame (512), a lifting frame (52), a second electric push rod (521), a push plate (522), a synchronous rod (523), a supporting plate (526) and a push roller (527), the connecting plate (51) is arranged on the conveying assembly (4), the first electric push rod (511) is fixedly connected to the upper surface of the connecting plate (51), the connecting frame (512) is fixedly connected to the output end of the first electric push rod (511), the lifting frame (52) is fixedly connected to the upper surface of the connecting frame (512), the second electric push rod (521) is fixedly connected to the lower surface of the lifting frame (52), the push plate (522) is fixedly connected to the output end of the second electric push rod (521), the synchronous rod (523) is rotatably connected to the outer surface of the push plate (522), the supporting plate (526) is slidably connected to the surface of the connecting frame (512) and rotatably connected with the synchronous rod (523), and the push roller (527) is rotatably connected to the surface of the supporting plate (526).

2. The motor FPC ultra-thin cover film processing device according to claim 1, characterized in that, The unwinding assembly (2) comprises a film material reel and a drive motor, the drive motor is fixed to the upper surface of the fixed seat (1) through a support, the shaft center of the film material reel is fixed to the output end of the drive motor, the guide roller group (3) comprises a leveling guide roller and a steering guide roller, both ends of the leveling guide roller and the steering guide roller are hinged to the upper surface of the fixed seat (1) through bearing seats, and the unwinding assembly (2) is connected with the guide roller group (3).

3. The motor FPC ultra-thin cover film processing device according to claim 2, characterized in that, The conveying assembly (4) comprises a fixed frame (41), a first motor (42), a conveying roller (43) and a pressure roller (44), the fixed frame (41) is fixedly connected to the upper surface of the fixed seat (1), the first motor (42) is fixedly connected to the surface of the fixed frame (41), the conveying roller (43) and the pressure roller (44) are both rotatably connected to the surface of the fixed frame (41), the pressure roller (44) is located directly above the conveying roller (43), and the shaft center of the conveying roller (43) is fixedly connected with the output end of the first motor (42).

4. The motor FPC ultra-thin cover film processing device according to claim 3, characterized in that, The ultra-thin cover film material is fixed on the film material reel, and the end of the ultra-thin cover film material sequentially passes through the outside of the leveling guide roller and the steering guide roller, and passes through between the conveying roller (43) and the pressure roller (44).

5. The motor FPC ultra-thin cover film processing device according to claim 4, characterized in that, The pushing mechanism (5) is arranged on one side of the conveying assembly (4) close to the laser cutting assembly (6), the connecting plate (51) is fixedly connected to the surface of the fixed frame (41), the output directions of the first electric push rod (511) and the second electric push rod (521) are vertically arranged, one end of the synchronous rod (523) is rotatably connected to the push plate (522), the other end is rotatably connected to the supporting plate (526), the first sliding groove is formed in the connecting frame (512) along the conveying direction of the ultra-thin covering film, the supporting plate (526) is slidably connected in the first sliding groove, the rotating hole is formed in the supporting plate (526) along the vertical direction of the conveying level of the ultra-thin covering film, and the shaft end of the push roller (527) is rotatably connected in the rotating hole, and the push roller (527) is arranged above the workbench of the laser cutting assembly (6).

6. The motor FPC ultra-thin cover film processing device according to claim 5, characterized in that, The connecting plate (51), the first electric push rod (511), the synchronous rod (523) and the supporting plate (526) are all provided with two groups, and the two groups of the connecting plate (51), the first electric push rod (511), the synchronous rod (523) and the supporting plate (526) are symmetrically distributed along the axis of the side surface of the connecting frame (512).

7. The motor FPC ultra-thin cover film processing device according to claim 1, characterized in that, The pushing mechanism (5) further comprises a guide rail (524) and a guide rod (525), the guide rail (524) is fixedly connected to the lower surface of the connecting frame (512), and the guide rod (525) is slidably connected to the inner side of the guide rail (524).

8. The motor FPC ultra-thin cover film processing device according to claim 7, characterized in that, The guide rail (524) is provided with a second sliding groove along the conveying direction of the ultra-thin covering film, the guide rod (525) is slidably connected in the second sliding groove, and the supporting plate (526) is fixedly connected to one end of the guide rod (525) close to the laser cutting assembly (6).

9. The motor FPC ultra-thin cover film processing device according to claim 8, characterized in that, The pushing mechanism (5) further comprises a connecting plate (53), a sliding cylinder (531), a sliding column (532), a pressing strip (533) and a spring (534), the connecting plate (53) is fixedly connected to the lower surface of the push plate (522), the sliding cylinder (531) is fixedly connected to the lower surface of the connecting plate (53), the sliding column (532) is slidably connected in the sliding cylinder (531), the pressing strip (533) is fixedly connected to one end surface away from the sliding cylinder (531), the spring (534) is fixedly connected between one end of the sliding column (532) away from the pressing strip (533) and the sliding cylinder (531), the pressing strip (533) is arranged above the workbench of the laser cutting assembly (6), and the pressing strip (533) is arranged on one side of the push roller (527) close to the conveying assembly (4).

10. A motor FPC ultra-thin cover film processing process, characterized in that, The method comprises the following steps: Step one: the roll-shaped ultra-thin covering film is fixed on the unwinding assembly (2), is preliminarily flattened by the guide roller set (3), and is stably conveyed by the conveying assembly (4); Step two: after the ultra-thin covering film is conveyed to the workbench of the laser cutting assembly (6), the pushing mechanism (5) first flexibly fixes the edge of the ultra-thin covering film through the pressing strip (533), and then pushes and flattens the ultra-thin covering film by the push roller (527) in a directional rolling manner, and the guide rail (524) limits the track to avoid deviation; Step three: after accurate positioning by the CCD positioner, the laser cutting assembly (6) cuts the opening and cuts according to the preset path; Step four: the cut film material is manually moved to the laminating assembly (7), is aligned with the FPC substrate, is pre-pressed and exhausted, is heat-pressed and solidified, is cooled and shaped, and single / plate lamination is completed.

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