Aluminum-based copper-clad plate double-sided film coating device

Abstract

The application relates to the technical field of copper-clad plate processing, and discloses an aluminum-based copper-clad plate double-sided film coating device which comprises a machine body; a storage box used for stacking and storing aluminum-based copper-clad plates needing film coating; a film coating element used for bidirectional film coating of the copper-clad plates; and a driving element used for controlling the ordered entry of the copper-clad plates in the storage box into a film coating station of the film coating element; the film coating element comprises a film winding device and a pressing and cutting device. The aluminum-based copper-clad plate double-sided film coating device is provided with the film coating element which comprises the film winding device and the pressing and cutting device; the film winding device is provided with upper and lower symmetrical pressing rollers one and two; when the copper-clad plate passes between the two pressing rollers, the upper and lower films can be simultaneously and automatically pressed onto the upper and lower surfaces of the copper-clad plate, the copper-clad plate does not need to be coated on one side twice, the process flow is greatly shortened, the production efficiency is improved, and the device is especially suitable for large-batch continuous production.

Description

Technical Field

[0001] This invention relates to the field of copper clad laminate processing technology, specifically to a double-sided coating device for aluminum-based copper clad laminates. Background Technology

[0002] Aluminum-based copper clad laminates are widely used in high-power heat dissipation applications such as LED lighting, power modules, and automotive electronics due to their excellent thermal conductivity, electrical insulation, and machinability. To protect the surface circuitry of the copper clad laminate from oxidation, scratches, and humid environments, and to improve its solderability and insulation performance, an insulating protective film is typically applied to the copper foil surface of the laminate.

[0003] Existing lamination equipment mostly employs a single-sided lamination method, where one side is laminated first, followed by a second lamination on the other side. This process is cumbersome, inefficient, and prone to introducing defects such as dust and scratches between the two laminations, affecting product yield. While some double-sided lamination equipment achieves simultaneous lamination, its complex structure and unstable film tension control easily lead to problems such as wrinkles, bubbles, or lamination misalignment. The feeding of copper-clad laminates largely relies on manual placement of each sheet or the use of simple pushing mechanisms, making it difficult to achieve precise timing coordination with the lamination station, resulting in inconsistent lamination positions and affecting lamination quality. The cutting process after lamination also often uses independent cutting devices, increasing equipment footprint and cost. Furthermore, the cutting and lamination actions are not synchronized, easily causing film waste or uneven edges. Therefore, a double-sided lamination device for aluminum-based copper-clad laminates is proposed to solve the aforementioned problems. Summary of the Invention

[0004] Technical problems to be solved To address the shortcomings of existing technologies, this invention provides a double-sided coating device for aluminum-based copper clad laminates, which solves the problems of misalignment and low coating efficiency that easily occur when coating copper clad laminates in existing technologies.

[0005] Technical solution To achieve the above objectives, the present invention provides the following technical solution: a double-sided coating device for aluminum-based copper clad laminates, comprising a machine body; a storage bin for stacking and storing aluminum-based copper clad laminates to be coated; a coating component for performing bidirectional coating on the copper clad laminates; and a driving component for controlling the orderly entry of the copper clad laminates inside the storage bin into the coating station of the coating component; wherein the coating component includes a film winding device and a cutting device.

[0006] The film winding device includes a frame fixed to the machine body. An unwinding roller and a take-up roller are rotatably connected to the frame. A power component is provided at one end of the take-up roller. The unwinding roller is loaded with film. Pressure roller 2 and pressure roller 1 are connected to the inner side of the machine body through a tensioning device. Pressure roller 2 and pressure roller 1 are arranged horizontally and symmetrically. The copper-clad laminate passes between the upper and lower pressure rollers 2 and 1. The film on the take-up roller is automatically pressed onto the copper-clad laminate.

[0007] Preferably, the tensioning device includes two swing arms, one end of which is connected to the machine body and the other end of which is connected to a pressure roller. A hook spring is connected between the two swing arms. The tensioning device is provided in two sets, with another set of tensioning devices connected to two pressure rollers. A tensioning frame is provided on the machine frame, and a tensioning wheel is connected to the tensioning frame.

[0008] Preferably, the machine body is symmetrically provided with I-beams, and multiple extrusion frames are slidably connected to the I-beams. Each extrusion frame is provided with an extrusion wheel and a compression spring is sleeved on the extrusion frame. One end of the compression spring is connected to the extrusion frame, and the other end of the compression spring is connected to the I-beam. The multiple extrusion wheels abut against the side of the copper-clad laminate.

[0009] Preferably, the storage box has a receiving cavity, and the copper-clad laminates are stacked in the receiving cavity. The storage box is fixed to the machine body, and the bottom of the storage box has a push port. During a single cycle of the drive unit, the bottom copper-clad laminate in the storage box will be pushed out from the push port.

[0010] Preferably, the driving component includes a rotating wheel, a key shaft connected to the axis of the rotating wheel, the key shaft rotating on the machine body, a servo motor being driven to one end of the key shaft, a pivot pin connected to the eccentric position of the rotating wheel, a sliding sleeve slidably connected to the pivot pin, a tension rod connected to the sliding sleeve, a push plate connected to the end face of the tension rod, and the push plate being located below the push port.

[0011] Preferably, the machine body is provided with a sliding groove, and the push plate pushes the copper-clad laminate to slide laterally in the sliding groove on the machine body. An inclined discharge port is provided on the left side of the machine body, and the copper-clad laminate after coating slides out from the discharge port.

[0012] Preferably, the pressure cutting device includes a sliding plate, which is connected to a push plate via a connector. The sliding plate is provided with a sliding pressure groove, and a sliding pin is slidably connected in the sliding pressure groove. A support plate is connected to the sliding pin, and two tie rods are connected to the support plate via a connecting rod. A pressure frame is connected to the tie rod, and a pressure column is slidably connected to the pressure frame. A pressure plate is connected to the bottom of the pressure column, and a telescopic spring is sleeved on the pressure column. One end of the telescopic spring is connected to the pressure plate, and the other end of the telescopic spring is connected to the pressure frame.

[0013] Preferably, cutting blades are slidably connected to all four sides of the pressure plate, the cutting blades are connected to the pressure frame, and the support plate is slidably connected to the machine body.

[0014] Preferably, the pressure plate is provided with a heating element inside, which generates heat that radiates to the bottom of the pressure plate, so that the roll film can be pressed and adhered to the surface of the copper-clad laminate.

[0015] Beneficial effects Compared with the prior art, the present invention provides a double-sided coating device for aluminum-based copper-clad laminates, which has the following beneficial effects: 1. This aluminum-based copper clad laminate double-sided lamination device, by setting up a lamination component, includes a film winding device and a pressure cutting device. The film winding device is equipped with a pressure roller one and a pressure roller two arranged symmetrically. When the copper clad laminate passes between the two, the upper and lower rolls of film can be automatically pressed onto the upper and lower surfaces of the copper clad laminate at the same time, eliminating the need for two single-sided laminations, greatly shortening the process flow, improving production efficiency, and is especially suitable for large-scale continuous production.

[0016] 2. This aluminum-based copper-clad laminate double-sided lamination device, through a crank-slider mechanism consisting of a rotating wheel, rotating pin, sliding sleeve, and tension rod in the drive unit, in conjunction with the push port at the bottom of the storage bin, can accurately push out the bottom copper-clad laminate in a single cycle and orderly enter the lamination station. The drive unit and the cutting device are linked together through connecting parts such as sliding plates, sliding pins, and support plates, so that the pushing, lamination, and cutting actions are coordinated and consistent. No additional sensors or independent control systems are required. The structure is simple and the operation is reliable, realizing a fully automatic continuous cycle operation from feeding to lamination to cutting.

[0017] 3. This aluminum-based copper clad laminate double-sided lamination device, through the tensioning device, when the copper clad laminate passes through, the pressure roller is automatically opened by force and a constant elastic clamping force is provided by the hook spring, ensuring that the roll film is evenly pressed against the surface of the copper clad laminate, effectively eliminating air bubbles and wrinkles generated during the lamination process, and improving the flatness and bonding strength of the lamination.

[0018] 4. This aluminum-based copper clad laminate double-sided lamination device, through the set pressure and cutting device, uses a pressure plate driven by a pressure frame to first perform a film pressing stroke, pressing the roll film firmly onto the surface of the copper clad laminate; as the pressure frame continues to descend, due to the thickness limitation of the copper clad laminate, the pressure plate stops moving while the pressure frame continues to compress the telescopic spring, thereby driving the cutting blades around the pressure plate to move down synchronously, completing the cutting of the continuous roll film. This not only reduces the investment in independent cutting equipment, saving space and cost, but also completes the film pressing and cutting actions continuously, with neat and burr-free cutting edges, effectively improving the quality of lamination. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a double-sided coating device for aluminum-based copper-clad laminates proposed in this invention; Figure 2 This is a schematic diagram of the film winding device structure of the aluminum-based copper clad laminate double-sided coating device proposed in this invention; Figure 3 This is a schematic diagram of the drive component structure of a double-sided coating device for aluminum-based copper clad laminates proposed in this invention; Figure 4This is a schematic diagram of the storage box structure of a double-sided coating device for aluminum-based copper-clad laminates proposed in this invention; Figure 5 This is a schematic diagram of the connection structure of multiple extrusion frames in an aluminum-based copper-clad laminate double-sided coating device proposed in this invention; Figure 6 This is a schematic diagram of the pressure plate connection structure of a double-sided coating device for aluminum-based copper clad laminates proposed in this invention; Figure 7 This is a schematic diagram of the cutting device structure of the double-sided coating device for aluminum-based copper clad laminates proposed in this invention; Figure 8 This is a schematic cross-sectional view of the slide plate of the double-sided coating device for aluminum-based copper clad laminate proposed in this invention.

[0020] In the diagram: 1. Machine body; 2. Drive unit; 21. Rotary wheel; 22. Rotary pin; 23. Sliding sleeve; 24. Tensioning rod; 25. Push plate; 3. Storage box; 31. Pushing port; 4. Coating component; 41. Frame; 42. Take-up roller; 43. Unwound roller; 44. Tensioning frame; 45. Pressure roller one; 46. Pressure roller two; 47. Swing rod; 48. Hook spring; 49. I-beam; 50. Extrusion frame; 51. Extrusion spring; 52. Slide plate; 53. Sliding groove; 54. Sliding pin; 55. Support plate; 56. Tie rod frame; 57. Pressure frame; 58. Pressure column; 59. Telescopic spring; 60. Pressure plate; 61. Cutting disc. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Please see Figures 1-8 A double-sided lamination device for aluminum-based copper clad laminates includes a body 1; a storage box 3 for stacking and storing aluminum-based copper clad laminates that need to be laminated; a lamination component 4 for performing bidirectional lamination on the copper clad laminates; a drive component 2 for controlling the orderly entry of the copper clad laminates inside the storage box 3 into the lamination station of the lamination component 4; the lamination component 4 includes a film winding device and a cutting device.

[0023] In this embodiment, the film winding device includes a frame 41, which is fixed to the machine body 1. An unwinding roller 43 and a take-up roller 42 are rotatably connected to the frame 41. A power unit is provided at one end of the take-up roller 42. The unwinding roller 43 is loaded with film. A second pressure roller 46 and a first pressure roller 45 are connected to the inner side of the machine body 1 via a tensioning device. The second pressure roller 46 and the first pressure roller 45 are horizontally symmetrically arranged. A copper-clad laminate passes between the two pressure rollers 46 and 45. The film on the take-up roller 42 is automatically pressed onto the copper-clad laminate. After the free end of the film is led out from the unwinding roller 43, it is tensioned sequentially by a tensioning wheel, passes over the roller surfaces of the first pressure roller 45 and the second pressure roller 46, and finally winds onto the take-up roller 42. The take-up roller 42 continuously winds the film under the drive of the power unit, keeping the film taut during transport. When the copper clad laminate passes horizontally through the coating channel between pressure roller 45 and pressure roller 46, the roll film on the roller surface of pressure roller 45 adheres to the upper surface of the copper clad laminate under the pressing action of pressure roller 45. Under symmetrical arrangement, the roll film on the opposite side will also be pressed onto the lower surface of the copper clad laminate simultaneously, thereby realizing double-sided synchronous coating of the copper clad laminate.

[0024] Furthermore, the tensioning device includes two swing arms 47, one end of which is connected to the machine body 1, and the other end of which is connected to the pressure roller 45. A hook spring 48 is connected between the two swing arms 47. The tensioning device is provided in two sets, with the other set of tensioning devices connected to the two pressure rollers 46. A tensioning frame 44 is provided on the frame 41, and a tensioning wheel is connected to the tensioning frame 44. As the copper-clad laminate passes between pressure roller 45 and pressure roller 46, it presses upward against pressure roller 45 and downward against pressure roller 46, causing them to move in opposite directions. This drives their respective two swing rods 47 to swing open around the hinge end. The hook spring 48 is stretched and accumulates elastic potential energy. The stretched hook spring 48 applies a reverse elastic tension to the two corresponding swing rods 47 in real time, ensuring that pressure roller 45 and pressure roller 46 always elastically press the film onto the upper and lower surfaces of the copper-clad laminate. This ensures that the film is continuously adhered as the copper-clad laminate moves, and the elastic pressing action removes air bubbles generated during the lamination process, making the film flat and tightly adhered to the surface of the copper-clad laminate. The free end of the film wound on the unwinding roller 43 is tensioned by the tensioning wheel, passes over the pressure roller 45 and the pressure roller 46 respectively, and finally connects to the take-up roller 42. When the power unit drives the take-up roller 42 to rotate and wind up, the film is tensioned by the tensioning wheel during its movement, so that the film is always kept flat and taut, preventing the film from slackening and wrinkling, and ensuring that the film enters the pressing position of the pressure roller 45 and the pressure roller 46 smoothly. The take-up roller 42 continuously winds up to maintain the continuous movement of the film, and the unwinding roller 43 is passively unwinded under the traction of the film, realizing the continuous supply and recovery of the film.

[0025] Furthermore, the machine body 1 is symmetrically provided with I-beams 49, and multiple extrusion frames 50 are slidably connected to the I-beams 49. Extrusion wheels are provided on the extrusion frames 50, and extrusion springs 51 are sleeved on the extrusion frames 50. One end of the extrusion spring 51 is connected to the extrusion frame 50, and the other end of the extrusion spring 51 is connected to the I-beams 49. The multiple extrusion wheels abut against the side of the copper-clad laminate. Multiple extrusion rollers elastically abut against the sides of the copper-clad laminate from both sides, providing lateral positioning and correction as the laminate passes through the lamination station. This prevents lateral deviation and ensures the laminate remains centered between roller 45 and roller 46, precisely aligning the film roll with the laminate surface and preventing skewed or uneven edges. When laminates of different widths pass through, the extrusion frame 50 can adaptively slide along the I-beam 49, with the extrusion spring 51 compressing or extending accordingly. This automatically adjusts the lateral position of the extrusion rollers to accommodate different laminate widths while maintaining a constant elastic clamping force on the sides of the laminate, achieving universal positioning for laminates of different sizes.

[0026] In addition, the storage bin 3 has a receiving cavity, in which copper-clad laminates are stacked. The storage bin 3 is fixed to the machine body 1, and a push port 31 is provided at the bottom of the storage bin 3. During a single cycle of the drive unit 2, the bottom copper-clad laminate in the storage bin 3 will be pushed out of the push port 31. During the horizontal pushing process of the bottom copper-clad laminate, the remaining copper-clad laminates above it are kept stationary by the restriction of the side wall of the storage bin 3, and the bottom surface of the second-to-last copper-clad laminate slides relative to the top surface of the bottom copper-clad laminate. When the movable end of the drive unit 2 is reset, the bottom copper-clad laminate is completely separated from the push port 31, and the second-to-last copper-clad laminate above it loses the support of the bottom copper-clad laminate and automatically falls into the bottom of the receiving cavity under the action of gravity, becoming the new bottom copper-clad laminate, waiting for the next pushing action, thereby realizing the continuous and orderly feeding of copper-clad laminates one by one.

[0027] In addition, the drive component 2 includes a rotating wheel 21, with a key shaft connected to the axis of the rotating wheel 21. The key shaft rotates on the machine body 1, and a servo motor is connected to one end of the key shaft. A pivot pin 22 is connected to the eccentric position of the rotating wheel 21, and a sliding sleeve 23 is slidably connected to the pivot pin 22. A tension rod 24 is connected to the sliding sleeve 23, and a push plate 25 is connected to the end face of the tension rod 24. The push plate 25 is located at the push port 31. When the servo motor drives the rotating wheel 21 to rotate, the pivot pin 22 revolves around the axis of the key shaft. During the revolution, the pivot pin 22 drives the sliding sleeve 23 to move synchronously. Since the pivot pin 22 and the sliding sleeve 23 are in sliding fit, the sliding sleeve 23 adaptively slides along the pivot pin 22 to compensate for radial displacement during the movement with the pivot pin 22. At the same time, the sliding sleeve 23 transmits the horizontal component of the pivot pin 22's circular motion to the push plate 25 through the tension rod 24, driving the push plate 25 to reciprocate linearly along the horizontal direction on the machine body 1. For each rotation of the rotary wheel 21, the pusher plate 25 completes one reciprocating motion cycle. During the stroke of the pusher plate 25 moving towards the pusher port 31, it pushes the bottom copper-clad laminate in the storage box 3 out horizontally from the pusher port 31. During the reset stroke of the pusher plate 25 moving away from the pusher port 31, the copper-clad laminate in the storage box 3 falls to the bottom of the receiving cavity by gravity, waiting for the next push action, thereby realizing the intermittent orderly feeding of a single copper-clad laminate for each cycle.

[0028] It is worth noting that the machine body 1 is provided with a slide groove. The pusher plate 25 pushes the copper-clad laminate to slide laterally in the slide groove on the machine body 1. An inclined discharge port is provided on the left side of the machine body 1, and the copper-clad laminate after coating slides out from the discharge port. Driven by the drive unit 2, the pusher plate 25 slides back and forth in a straight line along the slide groove. When the pusher plate 25 slides towards the push port 31, the pusher plate 25 pushes the copper-clad laminate that falls from the push port 31 into the slide groove to slide horizontally along the extension direction of the slide groove, so that the copper-clad laminate passes through the coating station in sequence. The slide groove guides the forward direction of the copper-clad laminate during its movement to prevent the copper-clad laminate from deviating during its movement. After the copper-clad laminate is coated and cut, it continues to move forward along the chute to the outlet position under the pushing action of the subsequent copper-clad laminates. When the copper-clad laminate enters the inclined chute of the outlet, it automatically slides down along the inclined direction of the outlet under the action of gravity, realizing the automatic discharge of the finished product after coating, avoiding the finished product from accumulating at the end of the chute or interfering with the subsequent copper-clad laminates to be coated.

[0029] It is worth noting that the pressure cutting device includes a slide plate 52, which is connected to the push plate 25 via a connector. The slide plate 52 is provided with a sliding pressure groove 53, and a sliding pin 54 is slidably connected in the sliding pressure groove 53. A support plate 55 is connected to the sliding pin 54, and two tie rods 56 are connected to the support plate 55 via a connecting rod. A pressure frame 57 is connected to the tie rods 56, and a pressure column 58 is slidably connected to the pressure frame 57. A pressure plate 60 is connected to the bottom of the pressure column 58, and a telescopic spring 59 is sleeved on the pressure column 58. One end of the telescopic spring 59 is connected to the pressure plate 60, and the other end of the telescopic spring 59 is connected to the pressure frame 57. When the push plate 25 drives the slide plate 52 to slide horizontally, the sliding pin 54 slides relative to the sliding groove 53 along its extension direction. When the sliding pin 54 is in the straight groove section, the support plate 55 remains stationary. When the sliding pin 54 slides to the inclined groove section, the inclined groove section generates a horizontal lateral thrust on the sliding pin 54, forcing the two sliding pins 54 to move closer or further apart in the horizontal direction, thereby driving the two support plates 55 to slide relative to each other in the horizontal direction. The two support plates 55 drive the two tie rods 56 to move closer to each other in the vertical direction through the connecting rod. The two tie rods 56 simultaneously drive the two pressure frames 57 to move closer to each other in the vertical direction. The pressure frame 57 pushes the pressure plate 60 towards the surface of the copper-clad laminate through the telescopic spring 59, thereby pressing the roll film onto the upper and lower surfaces of the copper-clad laminate.

[0030] It is worth mentioning that cutting blades 61 are slidably connected to all four sides of the pressure plate 60. The cutting blades 61 are connected to the pressure frame 57, and the support plate 55 is slidably connected to the machine body 1. Furthermore, a heating element is provided inside the pressure plate 60. The heating element generates heat that radiates to the bottom of the pressure plate 60, allowing the roll film to be pressed and adhered to the surface of the copper-clad laminate. In the first stroke, the pressure frame 57 pushes the pressure plate 60 toward the surface of the copper-clad laminate via the telescopic spring 59 until the bottom and top surfaces of the pressure plate 60 are in close contact with the roll film on the upper and lower surfaces of the copper-clad laminate, respectively, pressing the roll film onto the surface of the copper-clad laminate. At this time, the blade of the cutting blade 61 has not yet contacted the roll film. In the second stroke, the pressure plate 60 stops moving due to the limitation in the thickness direction of the copper-clad laminate. The pressure frame 57 continues to move towards the copper-clad laminate, overcoming the elastic force of the telescopic spring 59. The telescopic spring 59 is further compressed, and the pressure frame 57 simultaneously drives the cutting blade 61 to continue moving towards the surface of the copper-clad laminate. The cutting blade 61 slides out relative to the side of the pressure plate 60, and the blades of the four cutting blades 61 cut into the roll film from the four sides of the copper-clad laminate, cutting the continuously supplied roll film along the edge contour of the copper-clad laminate, so that the roll film completely and flatly covers the upper and lower surfaces of the copper-clad laminate. When reversing and resetting after completing the second stroke, the pressure frame 57 first drives the cutting blade 61 to slide back in the opposite direction. After the cutting blade 61 is completely retracted, the pressure frame 57 drives the pressure plate 60 to move in the opposite direction synchronously through the telescopic spring 59, so that the pressure plate 60 is removed from the surface of the copper-clad laminate, completing a complete film pressing and cutting cycle. The heat generated by the heating element is transferred to the bottom and top surfaces of the pressure plate 60 via heat conduction, raising the surface temperature of the side of the pressure plate 60 facing the copper-clad laminate. During the process of the pressure plate 60 pressing the roll film onto the surface of the copper-clad laminate, the heat from the surface of the pressure plate 60 is transferred to the bonding interface between the roll film and the copper-clad laminate through heat conduction and radiation. This softens the roll film and enhances its fluidity, reducing the bonding resistance between the roll film and the copper-clad laminate surface. This allows the roll film to adhere more evenly and tightly to the surface of the copper-clad laminate. Simultaneously, the hot pressing action eliminates residual air bubbles between the roll film and the copper-clad laminate, improving the adhesion and bonding strength of the coating. The surface temperature of the pressure plate 60 is controlled by the power and energizing time of the heating element to meet the optimal coating temperature requirements for roll films of different materials and thicknesses.

[0031] The working principle is as follows: First, the aluminum-based copper-clad laminates to be coated are stacked in the storage bin 3. Then, the servo motor is started, which drives the rotating wheel 21 on the key shaft to rotate. The rotation of the rotating wheel 21 will drive the rotating pin 22 to rotate in a circular motion, which in turn causes the rotating pin 22 to slide in the sliding sleeve 23. The rotation of the rotating pin 22 generates a cyclic axial force, which drives the sliding sleeve 23 and the tension rod 24 to move left and right in a cyclic motion. The tension rod 24 will drive the push plate 25 to move left and right laterally. When the push plate 25 moves to the left, it will push the bottom copper-clad laminate of the storage bin 3 out of the push port 31. The upper copper-clad laminates will remain in position due to the constraint of the storage bin 3, and the second to last copper-clad laminate will slide relative to the upper surface of the push plate 25. After the push plate 25 resets and moves to the right, separating from the upper copper-clad laminate, the penultimate copper-clad laminate will be lowered by gravity and sit on the slide groove on the machine body 1. The copper-clad laminate pushed out in the previous step will pass between the two pressure rollers 45. Initially, the two pressure rollers 45 are in relative contact. After the copper-clad laminate passes through, the two pressure rollers 45 are moved relative to each other under force, thereby driving the two swing arms 47 to rotate. The two hook springs 48 will effectively control the two pressure rollers 45 to press the film onto the surface of the copper-clad laminate. At this time, the power component, that is, another set of motors, drives the rotation of the take-up roller 42, thereby generating a winding rotational force to control the film winding. The complete film will then be released from the unwind roller 43. Driven by the tensioning wheel, pressure roller 45, and pressure roller 46, the winding roller 42 winds up the copper-clad laminate. Therefore, when the copper-clad laminate is pushed to the lamination station, between pressure roller 46 and pressure roller 45, the motor stops, leaving the complete roll of film above the copper-clad laminate. Then, as the push plate 25 returns to its original position, it drives the slide plate 52 to move synchronously to the right. After the slide plate 52 moves to the right, the sliding pins 54 slide relative to each other in the sliding grooves 53 on the support plate 55. When they are almost at their rightward limit, the sliding pins 54 enter the inclined grooves of the sliding grooves 53. Using the constraint of the inclined grooves, the two sliding pins 54 retract relative to each other, thereby driving the two support plates 55 to slide up and down within the machine body 1. The relative sliding of the two support plates 55 will... Two connecting rods drive two tie rod frames 56 to press against each other, simultaneously driving two symmetrically arranged pressure frames 57 to move relative to each other. The pressure frames 57, connected by a telescopic spring 59, drive the pressure plate 60 to press against each other, thus firmly pressing the roll film onto the upper and lower surfaces of the copper-clad laminate. Then, the two pressure frames 57 continue to move relative to each other, simultaneously driving the peripheral cutting blades 61 to move relative to each other. At this time, the pressure plate 60 is pressed by the telescopic spring 59, pressing the copper-clad laminate in the middle. It will be limited by the thickness of the copper-clad laminate and will no longer move. So, when the pressure frames 57 continue to move, they will press the telescopic spring 59. When the pressure frames 57 are pressed to the limit position, they will drive the cutting blades 61 to cut the roll film, thereby controlling the roll film to be completely adhered to the upper and lower surfaces of the copper-clad laminate.Therefore, the pressure frame 57 has a two-stroke motion: the first stroke is for pressing the film, and the second stroke is for cutting the film. The size of the entire pressure plate 60 is exactly the same as the size of the copper-clad laminate. So, when the cutting blades 61 on all four sides move down, they will cut the entire continuous roll of film, separating the roll of film, thereby enabling continuous film coating processing for subsequent copper-clad laminates. After the pusher plate 25 continues to push the second layer of copper-clad laminate out of the pusher port 31, the coated copper-clad laminate will be squeezed out by the subsequent copper-clad laminate, causing it to be squeezed out from the two pressure rollers 46. After being squeezed out by the pressure rollers 46, it will enter the inclined discharge port on the machine body 1 and slide out. So, the second copper-clad laminate will enter the coating station, waiting for the next cycle of pressing and cutting the film. Compared to existing technologies where a pre-cut film is laid flat on the copper clad laminate after it has been moved to the lamination station, this method is more convenient and efficient. It also effectively reduces the misalignment of the film, achieves continuous lamination, and effectively improves the quality of the lamination.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A double-sided coating device for aluminum-based copper-clad laminates, characterized in that, include: Body (1); Storage bin (3) is used to stack and store aluminum-based copper-clad laminates that need to be coated; The coated component (4) is used for bidirectional coating of copper-clad laminates; The drive unit (2) is used to control the copper-clad laminate inside the storage box (3) to enter the coating station of the coating part (4) in an orderly manner; The coated component (4) includes a film winding device and a cutting device; The film winding device includes a frame (41) fixed on the machine body (1). An unwinding roller (43) and a take-up roller (42) are rotatably connected on the frame (41). A power component is provided at one end of the take-up roller (42). A film is provided on the unwinding roller (43). A second pressure roller (46) and a first pressure roller (45) are connected to the inner side of the machine body (1) through a tensioning device. The second pressure roller (46) and the first pressure roller (45) are arranged horizontally and symmetrically. The copper-clad laminate passes between the upper and lower second pressure rollers (46) and the first pressure roller (45). The film on the take-up roller (42) is automatically pressed onto the copper-clad laminate. The film is connected to the first pressure roller (45), the second pressure roller (46), and the take-up roller (42) respectively.

2. The double-sided coating device for aluminum-based copper-clad laminates according to claim 1, characterized in that: The tensioning device includes two swing arms (47), one end of which is connected to the machine body (1), and the other end of which is connected to the pressure roller (45). A hook spring (48) is connected between the two swing arms (47). The tensioning device is provided in two sets. The other set of tensioning devices is connected to two pressure rollers (46). A tensioning frame (44) is provided on the frame (41), and a tensioning wheel is connected to the tensioning frame (44).

3. The double-sided coating device for aluminum-based copper-clad laminates according to claim 1, characterized in that: The machine body (1) is symmetrically provided with I-beams (49), and multiple extrusion frames (50) are slidably connected to the I-beams (49). Extrusion wheels are provided on the extrusion frames (50), and extrusion springs (51) are sleeved on the extrusion frames (50). One end of the extrusion spring (51) is connected to the extrusion frame (50), and the other end of the extrusion spring (51) is connected to the I-beams (49). The multiple extrusion wheels abut against the side of the copper-clad laminate.

4. The double-sided coating device for aluminum-based copper-clad laminates according to claim 1, characterized in that: The storage box (3) has a receiving cavity, and the copper-clad laminates are stacked in the receiving cavity. The storage box (3) is fixed on the machine body (1). The bottom of the storage box (3) has a push port (31). When the drive unit (2) moves in a single cycle, it pushes the bottom copper-clad laminate in the storage box (3) out of the push port (31).

5. The double-sided coating device for aluminum-based copper-clad laminates according to claim 4, characterized in that: The driving component (2) includes a rotating wheel (21), a key shaft is connected to the axis of the rotating wheel (21), the key shaft rotates on the machine body (1), a servo motor is connected to one end of the key shaft, a pivot pin (22) is connected to the eccentric position of the rotating wheel (21), a sliding sleeve (23) is slidably connected to the pivot pin (22), a tension rod (24) is connected to the sliding sleeve (23), a push plate (25) is connected to the end face of the tension rod (24), and the push plate (25) is located at the push port (31).

6. The double-sided coating device for aluminum-based copper-clad laminates according to claim 5, characterized in that: The machine body (1) is provided with a sliding groove, and the push plate (25) pushes the copper-clad board to slide laterally in the sliding groove on the machine body (1). The left side of the machine body (1) is provided with an inclined discharge port, and the copper-clad board after coating slides out from the discharge port.

7. The double-sided coating device for aluminum-based copper-clad laminates according to claim 6, characterized in that: The pressure cutting device includes a slide plate (52), which is connected to a push plate (25) via a connector. A sliding pressure groove (53) is provided on the slide plate (52), and a sliding pin (54) is slidably connected in the sliding pressure groove (53). A support plate (55) is connected to the sliding pin (54), and two tie rods (56) are connected to the support plate (55) via a connecting rod. A pressure frame (57) is connected to the tie rods (56), and a pressure column (58) is slidably connected to the pressure frame (57). A pressure plate (60) is connected to the bottom of the pressure column (58), and a telescopic spring (59) is sleeved on the pressure column (58). One end of the telescopic spring (59) is connected to the pressure plate (60), and the other end of the telescopic spring (59) is connected to the pressure frame (57).

8. The double-sided coating device for aluminum-based copper-clad laminates according to claim 7, characterized in that: Cutting blades (61) are slidably connected to the four sides of the pressure plate (60). The cutting blades (61) are connected to the pressure frame (57). The support plate (55) is slidably connected to the machine body (1) vertically.

9. The double-sided coating device for aluminum-based copper-clad laminates according to claim 7, characterized in that: The pressure plate (60) is equipped with a heating element inside. The heating element generates heat that radiates to the bottom of the pressure plate (60), so that the roll film can be pressed and adhered to the surface of the copper-clad laminate.

Images