PCB dry film lamination and exposure integrated device

Abstract

The utility model relates to PCB manufacturing equipment technical field especially relates to a kind of PCB dry film lamination and exposure integration device, including organic shell, support, control display screen, electric sliding rail one and electric sliding block one, multiple support are fixedly connected in the shell bottom, control display screen is installed in the shell front side, electric sliding rail one is installed in the shell inside both sides, electric sliding block one is slidably installed on electric sliding rail one. By driving electric sliding block one along electric sliding rail one sliding, instead of artificial transfer, realize feeding, cutting, lamination, exposure, integrated continuous operation of taking material, reduce personnel labor intensity, solve the problem that PCB dry film is prone to deviation in the process of transfer to exposure, leading to the positioning reference of lamination and exposure stage is inconsistent, affect final circuit accuracy and product yield.

Description

Technical Field

[0001] This utility model relates to the field of PCB manufacturing equipment technology, and in particular to an integrated device for PCB dry film lamination and exposure. Background Technology

[0002] A PCB, or Printed Circuit Board, is a core component in electronic devices used to carry and connect electronic components. From single-layer to double-sided, multi-layer, and flexible boards, PCBs have consistently adapted to the trends in electronic technology, moving towards higher precision, higher density, and higher reliability. They have also made continuous breakthroughs in miniaturization, cost reduction, and performance improvement, thus maintaining their strong vitality in the development of electronic devices.

[0003] However, in current PCB dry film processing technology, the bonding and exposure processes are still generally carried out in separate steps: first, the dry film is pressed onto the surface of the PCB substrate using a bonding machine, and then it is manually or semi-automatically transferred to an exposure machine for pattern transfer. This separate process not only increases the number of operation steps and time costs, but also introduces the risk of positioning misalignment during substrate transfer, causing deviations between the pattern reference after film bonding and the exposure alignment system, which seriously affects the accuracy of circuit imaging and restricts further improvement in product yield.

[0004] Therefore, it is necessary to design an integrated device for PCB dry film bonding and exposure. Utility Model Content

[0005] To overcome the drawback that PCB dry film is prone to shifting during the transfer to exposure, resulting in inconsistent positioning references between the bonding and exposure stages, which affects the final circuit accuracy and product yield, this utility model provides an integrated device for PCB dry film bonding and exposure.

[0006] The technical solution of this utility model is as follows: an integrated device for PCB dry film bonding and exposure, including a housing, feet, a control display screen, an electric slide rail, an electric slider, a support plate, blocks, a dry film cutting component, a dry film supply component, a hot-press bonding component, and an exposure component. Multiple feet are fixedly connected to the bottom of the housing. A control display screen is installed on the front side of the housing. Electric slide rails are installed on both the front and rear sides inside the housing. Electric sliders are slidably mounted on each electric slide rail. Both the electric slide rails and the electric sliders are electrically connected to the control display screen. A support plate is fixedly connected between two electric sliders. Multiple blocks are fixedly connected to the top of the support plate. The dry film cutting component, the hot-press bonding component, and the exposure component are located at the top inside the housing. A dry film supply component is located outside the housing.

[0007] Furthermore, the dry film cutting assembly includes an electric push rod 1, a connecting plate, a cutter 1, a cutter 2, a motor 1, and a screw. The electric push rod 1 is installed at the top inside the housing. The connecting plate is connected to the telescopic rod of the electric push rod 1. The cutter 1 is fixedly connected to both the left and right sides of the bottom of the connecting plate. The cutter 2 is fixedly connected to the rear side of the bottom of the connecting plate. The motor 1 is installed at the front side of the connecting plate. The electric push rod 1 and the motor 1 are electrically connected to the control display screen. The screw is rotatably connected to the bottom of the connecting plate. The output shaft of the motor 1 is connected to the screw. Another cutter 2 is threadedly connected to the front side of the screw. The front cutter 2 is slidably connected to the connecting plate.

[0008] Furthermore, the dry film supply assembly includes a support frame, an unwinding roller, a take-up roller, bevel gears, support rods, a second motor, and a pulley assembly. Slots are provided on both the front and rear sides of the casing. Support frames are fixedly connected to both the front and rear sides of the casing. An unwinding roller is rotatably connected inside the rear support frame, and a take-up roller is rotatably connected inside the front support frame. Bevel gears are fixedly connected to the right sides of both the unwinding and take-up rollers. Support rods are rotatably connected to both the front and rear sides of the casing. Another bevel gear is fixedly connected to the top of each support rod. The two bevel gears on the same side mesh with each other. A second motor is installed on the rear side of the casing. The second motor is electrically connected to the control display screen. The output shaft of the second motor is connected to the rear support rod. Power is transmitted between the two support rods via a pulley assembly.

[0009] Furthermore, the hot pressing bonding assembly includes an electric slide rail II, an electric slider II, an electric push rod II, a connecting block, guide rods, springs, a connecting frame, bonding rollers, and heating wires. The electric slide rail II is installed at the top inside the housing. The electric slider II is slidably mounted on the electric slide rail II. The electric push rod II is installed at the bottom of the electric slider II. The connecting block is connected to the telescopic rod of the electric push rod II. Multiple guide rods are slidably connected inside the connecting block. A connecting frame is fixedly connected between the bottoms of the multiple guide rods. Multiple springs are connected between the connecting block and the connecting frame. Multiple bonding rollers are rotatably connected inside the connecting frame. Each bonding roller is equipped with a heating wire. The electric slide rail II, electric slider II, electric push rod II, and heating wires are all electrically connected to the control display screen.

[0010] Furthermore, the exposure assembly includes exposure lamps and light shields. Multiple exposure lamps are installed on the inner wall of the housing, and all exposure lamps are electrically connected to the control display screen. Multiple light shields are fixedly connected inside the housing.

[0011] Furthermore, it also includes an observation window, which is fixedly connected to the front side of the housing.

[0012] Beneficial effects: 1. By driving an electric slider to slide along an electric slide rail, manual transfer is replaced, realizing integrated continuous operation of feeding, cutting, bonding, exposure and unloading, reducing the labor intensity of personnel, and solving the problem that PCB dry film is prone to displacement during the transfer to exposure, resulting in inconsistent positioning references in the bonding and exposure stages, which affects the final circuit accuracy and product yield.

[0013] 2. This utility model sets up a motor and a screw. The output shaft of the motor rotates and drives the screw to rotate synchronously, so that the front cutter moves backward along the connecting plate. This adjusts the distance between the two cutters to match the width of the PCB substrate. This eliminates the need to replace the cutting parts and avoids waste of dry film or incomplete coverage.

[0014] 3. This utility model, by setting up a pulley assembly, transmits power to the front support rod through the pulley assembly, so that the front and rear support rods rotate synchronously. This enables the unwinding roller and the winding roller to rotate synchronously in the same direction. The unwinding roller releases the dry film, and the winding roller then winds up the excess dry film cutting allowance, ensuring that the dry film is flat during cutting and lamination. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a three-dimensional structural diagram of the electric slide rail, electric slider, and support plate components of this utility model.

[0017] Figure 3 This is a three-dimensional structural masked view of the components of this utility model, including the electric push rod, connecting plate, and cutter.

[0018] Figure 4 This is a three-dimensional structural diagram of the components of this utility model, including the second cutter, the first motor, and the screw.

[0019] Figure 5 This is a three-dimensional structural masked view of the support frame, unwinding roller, and bevel gear of this utility model.

[0020] Figure 6 This is a three-dimensional structural diagram of the bevel gear, support rod, and pulley assembly of this utility model.

[0021] Figure 7 This is a three-dimensional structural diagram of the components of this utility model, including the electric slide rail II, the electric slider II, and the electric push rod II.

[0022] Figure 8 This is a partial cross-sectional view of the connecting frame and bonding roller components of this utility model.

[0023] Explanation of reference numerals in the attached drawings: 1. Machine housing; 101. Through slot; 2. Support leg; 3. Control display screen; 4. Electric slide rail one; 5. Electric slider one; 6. Support plate; 601. Stop block; 7. Electric push rod one; 8. Connecting plate; 9. Cutter one; 10. Cutter two; 11. Motor one; 12. Screw; 13. Support frame; 14. Unwinding roller; 1401. Rewinding roller; 15. Bevel gear; 16. Support rod; 1601. Motor two; 17. Pulley assembly; 18. Electric slide rail two; 19. Electric slider two; 20. Electric push rod two; 21. Connecting block; 22. Guide rod; 23. Spring; 24. Connecting frame; 25. Bonding roller; 26. Heating wire; 27. Exposure lamp; 28. Light shield; 29. ​​Observation window. Detailed Implementation

[0024] Example: An integrated device for PCB dry film lamination and exposure, such as... Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, the assembly includes a housing 1, support legs 2, a control display screen 3, an electric slide rail 4, an electric slider 5, a support plate 6, a stop block 601, a dry film cutting assembly, a dry film supply assembly, a hot-pressing assembly, an exposure assembly, and an observation window 29. Two symmetrically distributed support legs 2 are welded to the front and rear sides of the bottom of the housing 1. The control display screen 3 is installed on the left front end of the housing 1. Electric slide rails 4 are installed on both the front and rear sides inside the housing 1. Electric sliders 5 are slidably mounted on each of the electric slide rails 4 via grooves. Both the electric slide rails 4 and the electric sliders 5 are connected to... The control display screen 3 is electrically connected. A support plate 6 is welded between the two electric sliders 5. Two stops 601 are welded to the top of the support plate 6 in an L-shape to achieve preliminary horizontal and vertical positioning of the PCB substrate and prevent the PCB substrate from shifting when the support plate 6 moves. The top of the machine housing 1 is equipped with a dry film cutting assembly, a hot pressing assembly, and an exposure assembly. The outside of the machine housing 1 is equipped with a dry film supply assembly. An observation window 29 is welded to the front of the machine housing 1. The observation window 29 is made of transparent material, such as acrylic sheet, so that the operator can observe the processing status of the PCB substrate inside the machine housing in real time.

[0025] like Figure 2 , Figure 3 and Figure 4As shown, the dry film cutting assembly includes an electric push rod 7, a connecting plate 8, a cutter 9, a cutter 10, a motor 11, and a screw 12. The electric push rod 7 is installed at the top inside the housing 1. The connecting plate 8 is connected to the telescopic rod of the electric push rod 7. Cutters 9 are welded to both the left and right sides of the bottom of the connecting plate 8. Cutter 10 is welded to the rear side of the bottom of the connecting plate 8. Motor 11 is installed on the front side of the connecting plate 8. The electric push rod 7 and motor 11 are electrically connected to the control display screen 3. Screw 12 is rotatably connected to the bottom of the connecting plate 8. The output shaft of motor 11 is connected to screw 12. Another cutter 10 is threadedly connected to the front side of the screw 12. The front cutter 10 is slidably connected to the connecting plate 8 through a groove.

[0026] like Figure 3 , Figure 5 and Figure 6 As shown, the dry film supply assembly includes a support frame 13, an unwinding roller 14, a take-up roller 1401, a bevel gear 15, a support rod 16, a second motor 1601, and a pulley assembly 17. The front and rear sides of the housing 1 are provided with symmetrically distributed through slots 101. Support frames 13 are welded to the front and rear sides of the housing 1. The unwinding roller 14 is rotatably connected inside the rear support frame 13, and the take-up roller 1401 is rotatably connected inside the front support frame 13. Bevel gears 15 are welded to the right sides of both the unwinding roller 14 and the take-up roller 1401. Support rods 16 are rotatably connected to the front and rear sides of the housing 1. Another bevel gear 15 is welded to the top of each support rod 16. The two bevel gears 15 on the same side mesh with each other. A second motor 1601 is installed on the rear side of the housing 1. The second motor 1601 is electrically connected to the control display screen 3. The output shaft of the second motor 1601 is connected to the rear support rod 16. Power is transmitted between the two support rods 16 through the pulley assembly 17.

[0027] like Figure 2 , Figure 3 , Figure 7 and Figure 8As shown, the hot press bonding assembly includes an electric slide rail 18, an electric slider 19, an electric push rod 20, a connecting block 21, a guide rod 22, a spring 23, a connecting frame 24, a bonding roller 25, and a heating wire 26. The electric slide rail 18 is installed at the top inside the housing 1. The electric slider 19 is slidably mounted on the electric slide rail 18 via a groove. The electric push rod 20 is installed at the bottom of the electric slider 19. The connecting block 21 is connected to the telescopic rod of the electric push rod 20. Four axially aligned components are slidably connected inside the connecting block 21 via a groove. The guide rods 22 are distributed in a row. A connecting frame 24 is welded between the bottom of the four guide rods 22. Four springs 23 are connected between the connecting block 21 and the connecting frame 24. The springs 23 are all sleeved on the outside of the guide rods 22 to buffer the dry film and prevent the rigid pressure from causing damage to the dry film or deformation of the PCB substrate. Three bonding rollers 25 are rotatably connected inside the connecting frame 24. Each bonding roller 25 is equipped with a heating wire 26. The electric slide rail 28, electric slider 29, electric push rod 20 and heating wire 26 are all electrically connected to the control display screen 3.

[0028] like Figure 2 As shown, the exposure assembly includes an exposure lamp 27 and a light shield 28. Three exposure lamps 27 are installed on the inner wall of the housing 1, distributed on the top and front and rear sides of the housing 1. The exposure lamps 27 are all electrically connected to the control display screen 3. Two light shields 28 are welded inside the housing 1. The light shields 28 are distributed around the perimeter of the exposure area to form a closed photosensitive space to prevent light leakage from the exposure lamps 27.

[0029] When this device is needed for PCB dry film lamination and exposure, the operator first places the roll of dry film on the unwinding roller 14, places the take-up spool on the take-up roller 1401, then pulls out the outer end of the dry film roll and passes it through the slots 101 on both sides of the frame, enters the housing 1 and covers the support plate 6 and the conveying path. Then it is wound around the take-up spool. Then, according to the width of the PCB substrate to be processed, the distance between the two cutters 10 is adjusted. When adjustment is needed, the motor 11 is started by controlling the display screen 3. The output shaft of the motor 11 rotates and drives the screw 12 to rotate, thereby driving the front cutter 10 to move backward along the connecting plate 8 until the distance between the front and rear cutters 10 is consistent with the width of the PCB substrate.

[0030] The operator can place the PCB substrate to be processed on the upper surface of the support plate 6 and align the PCB edge with the inner side of the stop block 601 to achieve initial positioning of the PCB substrate. Then, the operator controls the electric slider 5 to move to the right along the electric slide rail 4 via the control display screen 3, and the support plate 6 moves synchronously until the PCB substrate moves directly below the dry film cutting assembly. At this point, the operator controls the electric slider 5 to stop moving and starts the motor 1601 via the control display screen 3. The output shaft of the motor 1601 rotates, driving the rear support rod 16 to rotate. The rear support rod 16 then transmits power to the front support rod 16 through the pulley assembly 17, causing the front and rear support rods 16 to rotate synchronously. The rotation of the support rods 16 drives the cones on them to rotate. When gear 15 rotates, the bevel gear 15 on support rod 16 meshes with the bevel gear 15 on unwind roller 14, thereby driving unwind roller 14 and take-up roller 1401 to rotate synchronously in the same direction. Unwind roller 14 releases the dry film until the dry film covers and exceeds the length of the PCB substrate. Then, motor 1601 is turned off, and electric push rod 7 is started. The telescopic rod of electric push rod 7 extends downward and drives connecting plate 8 to descend synchronously. Cutter 9 cuts the left and right ends of the dry film (matching the PCB width), and cutter 10 cuts the front and rear ends of the dry film (matching the PCB length). Take-up roller 1401 winds up the excess dry film and cuts the remaining amount. After the dry film is cut, electric push rod 7 is controlled to drive connecting plate 8 to rise and reset.

[0031] Next, control the electric slider 5 to move to the right along the electric slide rail 4 until the support plate 6 moves directly below the hot press bonding assembly and then stops moving. Then, activate the electric push rod 20 via the control display screen 3. The telescopic rod of the electric push rod 20 extends downward, causing the connecting block 21 to descend synchronously. The guide rod 22 descends accordingly. When the bonding roller 25 contacts the upper surface of the dry film, the electric push rod 20 continues to apply force, compressing the spring 23. After the bonding roller 25 applies a certain pressure to the dry film, control the electric push rod 20 to continue moving. The telescopic rod stops extending. Then, the electric slider 219 is controlled to move back and forth along the electric slide rail 218 and the heating wire 26 is activated. The heating wire 26 heats up after being energized and transfers the heat to the bonding roller 25. The bonding roller 25 rolls within the connecting frame 24 with the slight movement of the support plate 6, tightly bonding the dry film to the PCB substrate. After bonding is completed, the electric slider 219 is controlled to stop sliding along the electric slide rail 218. Then, the electric push rod 20 is controlled to retract, thereby driving the connecting block 21 to rise and the spring 23 to reset.

[0032] Control the electric slider 5 to move to the right along the electric slide rail 4 again and activate the exposure lamp 27. Move the support plate 6 directly below the exposure component and stop moving. The exposure lamp 27 emits ultraviolet light to expose the dry film on the PCB substrate surface. The photosensitive agent in the dry film then undergoes a chemical reaction, forming a latent image of the preset circuit pattern. After exposure, turn off the exposure lamp 27 and control the electric slider 5 to move the support plate 6 to the right again until the support plate 6 extends outside the machine housing 1. The operator can then remove the finished PCB substrate. Control the electric slider 5 to slide back to the initial position at the far left of the electric slide rail 4 to complete a single processing cycle. If mass production is required, repeat the above operation.

Claims

1. An integrated device for PCB dry film lamination and exposure, characterized in that, The device includes a housing (1), feet (2), a control display screen (3), an electric slide rail (4), an electric slider (5), a support plate (6), a stop (601), a dry film cutting assembly, a dry film supply assembly, a hot press bonding assembly, and an exposure assembly. Multiple feet (2) are fixedly connected to the bottom of the housing (1). A control display screen (3) is installed on the front side of the housing (1). Electric slide rails (4) are installed on both the front and rear sides inside the housing (1). Electric sliders (5) are slidably installed on the electric slide rails (4). Both the electric slide rails (4) and the electric sliders (5) are electrically connected to the control display screen (3). A support plate (6) is fixedly connected between the two electric sliders (5). Multiple stops (601) are fixedly connected to the top of the support plate (6). A dry film cutting assembly, a hot press bonding assembly, and an exposure assembly are provided on the top inside the housing (1). A dry film supply assembly is provided on the outside of the housing (1).

2. The PCB dry film bonding and exposure integrated device as described in claim 1, characterized in that, The dry film cutting assembly includes an electric push rod (7), a connecting plate (8), a cutter (9), a cutter (10), a motor (11), and a screw (12). The electric push rod (7) is installed on the top inside the housing (1). The connecting plate (8) is connected to the telescopic rod of the electric push rod (7). The cutter (9) is fixedly connected to the left and right sides of the bottom of the connecting plate (8). The cutter (10) is fixedly connected to the rear side of the bottom of the connecting plate (8). The motor (11) is installed on the front side of the connecting plate (8). The electric push rod (7) and the motor (11) are electrically connected to the control display screen (3). The screw (12) is rotatably connected to the bottom of the connecting plate (8). The output shaft of the motor (11) is connected to the screw (12). Another cutter (10) is threadedly connected to the front side of the screw (12). The front cutter (10) is slidably connected to the connecting plate (8).

3. The PCB dry film bonding and exposure integrated device as described in claim 2, characterized in that, The dry film supply assembly includes a support frame (13), an unwinding roller (14), a take-up roller (1401), a bevel gear (15), a support rod (16), a second motor (1601), and a pulley assembly (17). The machine housing (1) has through slots (101) on both the front and rear sides. The support frame (13) is fixedly connected to both the front and rear sides of the machine housing (1). The unwinding roller (14) is rotatably connected inside the rear support frame (13), and the take-up roller (1401) is rotatably connected inside the front support frame (13). The unwinding roller (14) and the take-up roller (1401) are... A bevel gear (15) is fixedly connected to the right side of the housing (1). Support rods (16) are rotatably connected to the front and rear sides of the housing (1). Another bevel gear (15) is fixedly connected to the top of each support rod (16). The two bevel gears (15) on the same side of the front and rear are meshed with each other. A second motor (1601) is installed on the rear side of the housing (1). The second motor (1601) is electrically connected to the control display screen (3). The output shaft of the second motor (1601) is connected to the rear support rod (16). The two support rods (16) transmit power through a pulley assembly (17).

4. The PCB dry film bonding and exposure integrated device as described in claim 3, characterized in that, The hot press bonding assembly includes an electric slide rail two (18), an electric slider two (19), an electric push rod two (20), a connecting block (21), a guide rod (22), a spring (23), a connecting frame (24), a bonding roller (25), and a heating wire (26). The electric slide rail two (18) is installed at the top inside the housing (1). The electric slider two (19) is slidably installed on the electric slide rail two (18). The electric push rod two (20) is installed at the bottom of the electric slider two (19). The connecting block (21) is connected to the telescopic rod of the electric push rod two (20). 1) Multiple guide rods (22) are slidably connected inside the connecting block (21). A connecting frame (24) is fixedly connected between the bottoms of the multiple guide rods (22). Multiple springs (23) are connected between the connecting block (21) and the connecting frame (24). Multiple bonding rollers (25) are rotatably connected inside the connecting frame (24). Each bonding roller (25) is equipped with an electric heating wire (26). The electric slide rail II (18), electric slider II (19), electric push rod II (20) and electric heating wire (26) are all electrically connected to the control display screen (3).

5. The PCB dry film bonding and exposure integrated device as described in claim 4, characterized in that, The exposure assembly includes an exposure lamp (27) and a light shield (28). Multiple exposure lamps (27) are installed inside the housing (1). The exposure lamps (27) are electrically connected to the control display screen (3). Multiple light shields (28) are fixedly connected to the inner wall of the housing (1).

6. The PCB dry film bonding and exposure integrated device as described in claim 5, characterized in that, It also includes an observation window (29), which is fixedly connected to the front side of the housing (1).

Images