Laminating machine suitable for large-size printed circuit board

Abstract

The utility model discloses a laminating machine suitable for a large-size printed circuit board, which relates to the field of printed circuit board processing and comprises a bottom plate and a movable frame, two sides of the top of the bottom plate are respectively provided with two supporting plates, and the supporting plates are provided with limiting assemblies. By arranging the limiting assembly, when the circuit board needs to be limited, the second electric push rod can be started to enable the piston rod to extend, then the movable frame is driven to move downwards, the movable plate is driven to move downwards through the connecting rod, then the pressing plate is pushed to rotate, and the pressing plate pushes the limiting block to move; in this way, the circuit board can be limited, the situation that the first air hole and the second air hole are staggered due to the fact that the circuit board deviates in the attaching process is prevented, and then the attaching efficiency of the blue film gummed paper is improved; the circuit board is prevented from being damaged due to the fact that the limiting block applies large extrusion force to the circuit board.

Description

Technical Field

[0001] This utility model relates to the field of printed circuit board processing, specifically a bonding machine suitable for large-size printed circuit boards. Background Technology

[0002] Printed circuit boards (PCBs) are important electronic components, serving as the support for electronic components and the carrier for their electrical connections. Because they are manufactured using electronic printing techniques, they are called "printed" circuit boards. Their main function is to connect various electronic components through circuits, providing conductivity and transmission. They are key electronic interconnects in electronic products. During the processing of PCBs, a laminating machine is used to attach blue adhesive tape to the product.

[0003] According to Chinese Patent No. CN219834513U, a simple bonding device for flexible circuit boards is disclosed. This utility model solves the problem that due to the thick copper of the substrate of wireless charging products, the blue film adhesive paper is prone to misalignment and wrinkles during bonding of reworked products, which affects the processing accuracy and quality, and improves the practicality of the device.

[0004] Regarding the aforementioned patent content, a cleaning mechanism is provided to clean the top of the circuit board. After cleaning, the blue film adhesive paper is placed on the circuit board, and then an air extraction structure is used to adsorb the blue film adhesive paper onto the circuit board, thereby achieving the bonding purpose. However, during the process of cleaning the circuit board or bonding the blue film adhesive paper, it is difficult to limit the circuit board, which may cause the air holes on the circuit board to be misaligned with the air holes on the base plate. This makes it difficult to perform subsequent air extraction and adsorption, thus affecting the bonding efficiency of the blue film adhesive paper. Utility Model Content

[0005] Therefore, the purpose of this utility model is to provide a laminating machine suitable for large-size printed circuit boards, so as to solve the technical problem that the circuit board may move during the process of cleaning the circuit board or laminating the blue film adhesive paper.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a bonding machine suitable for large-size printed circuit boards, comprising a base plate and a movable frame. Two support plates are installed on both sides of the top of the base plate. The support plates are provided with limiting components, and the limiting components include a fixed plate installed on one side of one support plate and movable slots opened on four support plates. A buffer spring is installed inside the lower part of the movable slot. A movable plate is slidably connected between every two movable slots, and a pressure plate is rotatably connected to the bottom of the movable plate. A limiting block is rotatably connected to the bottom of the pressure plate. A second electric push rod is installed at the bottom of the fixed plate, and a movable frame is installed at the output end of the second electric push rod through a piston rod. A connecting rod is connected between the movable frame and the movable plate. A locking component is provided on the movable frame, and the locking component includes slots opened on both sides of the outer surface of the movable frame and grooves opened on both sides of the inner surface of the movable frame.

[0007] By adopting the above technical solution, when it is necessary to limit the circuit board, the second electric push rod can be activated to extend the piston rod, thereby driving the movable frame to move down, and then driving the movable plate to move down through the connecting rod.

[0008] Furthermore, a plug is inserted into the slot, and a locking groove is provided on one side of the plug. A spring is installed on one side of the groove, and one end of the spring is connected to a locking block extending into the locking groove.

[0009] By adopting the above technical solution, after the locking block is removed from the locking groove, it no longer locks and limits the insertion block. At this time, the cleaning roller can be removed for cleaning or replacement.

[0010] Furthermore, a pull rod extending through to the outside of the movable frame is installed on one side of the locking block, and a pull plate is installed at one end of the pull rod.

[0011] By adopting the above technical solution, when it is necessary to disassemble the cleaning roller, the staff can pull the pull rod through the pull plate, and the pull rod will drive the locking block to move, so that the locking block is moved out of the locking groove.

[0012] Furthermore, the other side of the two inserts is connected to a rotating shaft via a bearing, and a cleaning roller is installed between the two rotating shafts.

[0013] By adopting the above technical solution, when the cleaning roller contacts the top of the circuit board, the top of the circuit board can be cleaned as the cleaning roller moves.

[0014] Furthermore, a horizontal plate is installed on the top of the support plate, and a sliding groove is provided on one side of each of the two horizontal plates, with a sliding seat provided inside one of the sliding grooves.

[0015] By adopting the above technical solution, the top plate will move and drive the slide block to slide inside the slide groove, thereby improving the stability of the top plate during movement.

[0016] Furthermore, a motor is mounted on the outer surface of one of the horizontal plates, and the output end of the motor is connected to a lead screw extending into another slide groove. A threaded seat is sleeved on the outer wall of the lead screw, and a top plate is installed between the threaded seat and the slide.

[0017] By adopting the above technical solution, if it is necessary to move the movable frame, the motor can be started. The motor can drive the lead screw to rotate, which in turn drives the threaded seat to move, and then drives the top plate to move.

[0018] Furthermore, a first electric push rod is installed on the top of the top plate, and a movable frame is installed at the output end of the first electric push rod via a piston rod.

[0019] By adopting the above technical solution, when it is necessary for the cleaning roller to move down and contact the top of the circuit board, the first electric push rod can be activated. The operation of the first electric push rod can extend the piston rod, thereby driving the movable frame to move down.

[0020] Furthermore, a circuit board is placed on the top of the base plate, and a second air hole is opened on the circuit board. An air extractor is installed at the bottom of the base plate. An air extraction pipe is connected to the air inlet end of the air extractor, and an air suction hood is installed at the top end of the air extraction pipe. The top of the air suction hood is connected to the base plate, and a first air hole is opened inside the base plate.

[0021] By adopting the above technical solution, when the blue film adhesive paper is placed on the bonding position on the circuit board, and then the air extractor is started, the air extractor extracts air through the air extraction pipe and the air extraction hood, and also extracts air through the first air hole and the second air hole, so that the blue film adhesive paper can be tightly adsorbed on the top of the circuit board.

[0022] Furthermore, the bottom of the limiting block is fitted to the top of the base plate, and a rubber pad is installed on one side of the limiting block.

[0023] By adopting the above technical solution, when the pressure plate rotates, it will push the limit block to move so that the limit block can fit with the circuit board, thereby playing the role of limiting the circuit board.

[0024] Furthermore, the bottom of the movable plate is connected to the top of the buffer spring, and the movable plate is slidably connected to the movable groove.

[0025] By adopting the above technical solution, the buffer spring can be squeezed when the movable plate moves down, thereby compressing the buffer spring and preventing the movable plate from moving down too quickly.

[0026] In summary, the present invention has the following main advantages:

[0027] 1. This utility model, by setting a limiting component, allows for the activation of a second electric push rod when the circuit board needs to be limited. This causes the piston rod to extend, thereby moving the movable frame downwards. The movable plate is then moved downwards via a connecting rod, pushing the pressure plate to rotate. The pressure plate then pushes the limiting block to move. Once the limiting block is in contact with the circuit board, the second electric push rod can be closed. This method limits the circuit board, preventing it from shifting during the bonding process and causing misalignment of the first and second air holes. This improves the bonding efficiency of the blue film adhesive paper. Furthermore, the limiting block only needs to be in contact with the circuit board, avoiding excessive pressure on the circuit board and potential damage.

[0028] 2. This utility model is equipped with a locking component. When the cleaning roller needs to be disassembled for cleaning or replacement, the pull rod can be pulled by the pull plate, which will then move the locking block. This will cause the locking block to move out of the locking groove and into the groove. At this time, the insertion block is no longer locked and limited. Then the staff can remove the cleaning roller for cleaning or replacement. The disassembly and assembly process is simple and convenient and improves the efficiency of disassembly and assembly of the cleaning roller. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0030] Figure 2 This is a schematic diagram of the cleaning roller structure of this utility model;

[0031] Figure 3 This is a schematic diagram of the overall orthographic structure of this utility model;

[0032] Figure 4 This is a schematic diagram of the three-dimensional structure of the movable frame of this utility model;

[0033] Figure 5 This is a schematic diagram of the three-dimensional structure of the horizontal plate of this utility model;

[0034] Figure 6 This is a schematic diagram of the side structure of the cleaning roller of this utility model;

[0035] Figure 7 This is a three-dimensional structural diagram of the movable plate of this utility model;

[0036] Figure 8 For the present utility model Figure 3 A magnified structural diagram of point A in the middle.

[0037] In the diagram: 1. Base plate; 2. Support plate; 3. Horizontal plate; 4. First electric push rod; 5. Limiting rod; 6. Movable frame; 7. Rotating shaft; 8. Locking assembly; 801. Slot; 802. Insert block; 803. Locking groove; 804. Locking block; 805. Pull rod; 806. Spring; 807. Pull plate; 808. Groove; 9. Limiting assembly; 901. Fixing plate; 902. Second electric push rod; 903. 904. Movable frame; 905. Connecting rod; 906. Movable plate; 907. Movable groove; 908. Limit block; 909. Buffer spring; 9000. Pressure plate; 10. Cleaning roller; 11. Air extractor; 12. Air extraction pipe; 13. Air suction hood; 14. First air hole; 15. Circuit board; 16. Second air hole; 17. Slide seat; 18. Slide groove; 19. Lead screw; 20. Motor; 21. Threaded seat; 22. Top plate. Detailed Implementation

[0038] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0039] The embodiments of this utility model will be described below based on its overall structure.

[0040] Example 1:

[0041] A bonding machine suitable for large-size printed circuit boards, such as Figures 1-8 As shown, the circuit board 15 includes a base plate 1 and a movable frame 6. Two support plates 2 are installed on both sides of the top of the base plate 1. A limiting component 9 is provided on the support plate 2. The limiting component 9 includes a fixed plate 901 installed on one side of one support plate 2 and movable slots 906 opened on the four support plates 2. A buffer spring 908 is installed inside the lower part of the movable slot 906. A movable plate 905 is slidably connected between every two movable slots 906. A pressure plate 909 is rotatably connected to the bottom of the movable plate 905. A limiting block 907 is rotatably connected to the bottom of the pressure plate 909. A second electric push rod 902 is installed at the bottom of the fixed plate 901. A movable frame 903 is installed at the output end of the second electric push rod 902 through a piston rod. A connecting rod 904 connects the movable frame 903 and the movable plate 905. When it is necessary to limit the circuit board 15, the second electric push rod 902 can be activated to extend the piston rod, thereby driving the movable frame 903 to move down, and then driving the movable plate 905 to move down through the connecting rod 904.

[0042] Specifically, the bottom of the limiting block 907 is attached to the top of the base plate 1. A rubber pad is installed on one side of the limiting block 907. When the pressure plate 909 rotates, it will push the limiting block 907 to move so that the limiting block 907 can fit with the circuit board 15, thereby limiting the circuit board 15. The bottom of the movable plate 905 is connected to the top of the buffer spring 908. The movable plate 905 is slidably connected to the movable groove 906 so that when the movable plate 905 moves down, it can squeeze the buffer spring 908, thereby compressing the buffer spring 908 and preventing the movable plate 905 from moving down too fast. The inner wall of the movable frame 903 is in contact with the support plate 2 to improve the stability of the movable frame 903 when it moves. The movable frame 6 is equipped with a locking component 8.

[0043] Specifically, the locking assembly 8 includes slots 801 on both sides of the outer surface of the movable frame 6 and grooves 808 on both sides of the inner surface of the movable frame 6. A plug 802 is inserted into the slot 801, and a locking groove 803 is provided on one side of the plug 802. A spring 806 is installed on one side of the inner surface of the groove 808, and one end of the spring 806 is connected to a locking block 804 extending into the locking groove 803. After the locking block 804 is removed from the locking groove 803, it no longer locks and limits the plug 802. At this time, the cleaning roller 10 can be removed for cleaning or replacement. The other side of the two plugs 802 is connected to a rotating shaft 7 through a bearing, and the cleaning roller 10 is installed between the two rotating shafts 7. When the cleaning roller 10 contacts the top of the circuit board 15, the top of the circuit board 15 can be cleaned as the cleaning roller 10 moves.

[0044] See Figures 1-5 A horizontal plate 3 is installed on the top of the support plate 2. A sliding groove 18 is opened on one side of each of the two horizontal plates 3. A sliding seat 17 is provided inside one of the sliding grooves 18. When the top plate 22 moves, it will drive the sliding seat 17 to slide inside the sliding groove 18, thereby improving the stability of the top plate 22 when it moves. A motor 20 is installed on the outer surface of one of the horizontal plates 3. The output end of the motor 20 is connected to a lead screw 19 that extends into the other sliding groove 18. A threaded seat 21 is sleeved on the outer wall of the lead screw 19. The top plate 22 is installed between the threaded seat 21 and the sliding seat 17. If the movable frame 6 needs to be moved, the motor 20 can be started. The operation of the motor 20 can drive the lead screw 19 to rotate. The lead screw 19 then drives the threaded seat 21 to move, and then drives the top plate 22 to move.

[0045] See Figures 1-4A first electric push rod 4 is installed on the top of the top plate 22. The output end of the first electric push rod 4 is connected to a movable frame 6 via a piston rod. When the cleaning roller 10 needs to be moved down and contact the top of the circuit board 15, the first electric push rod 4 can be activated. The operation of the first electric push rod 4 can extend the piston rod, thereby driving the movable frame 6 to move down. Both sides of the top of the movable frame 6 are provided with limiting rods 5 that penetrate the top plate 22. When the movable frame 6 moves up and down, it will drive the limiting rods 5 to move, thereby improving the stability of the movable frame 6 during movement. The circuit board 15 is placed on the top of the bottom plate 1, and a second air hole 16 is opened on the circuit board 15. The bottom of the bottom plate 1 is equipped with... Equipped with an air extractor 11, the air inlet of the air extractor 11 is connected to an air extraction pipe 12, and an air suction hood 13 is installed at the top of the air extraction pipe 12. The top of the air suction hood 13 is connected to the base plate 1. The base plate 1 has a first air hole 14 inside, and the number of the first air holes 14 is the same as the number of the second air holes 16. The first air holes 14 and the second air holes 16 correspond one-to-one. When the blue film adhesive paper is placed on the bonding position on the circuit board 15, and the air extractor 11 is started, the air extractor 11 draws air through the air extraction pipe 12 and the air suction hood 13, and also draws air through the first air holes 14 and the second air holes 16, so that the blue film adhesive paper can be tightly adsorbed onto the top of the circuit board 15.

[0046] Example 2:

[0047] Based on the above embodiment 1, the following structure will be provided to facilitate the removal of the locking block 804 from the locking groove 803.

[0048] See Figure 6 and Figure 8 A pull rod 805 extending through to the outside of the movable frame 6 is installed on one side of the locking block 804. A pull plate 807 is installed at one end of the pull rod 805. If the cleaning roller 10 needs to be disassembled, the operator can pull the pull rod 805 through the pull plate 807. The pull rod 805 will then move the locking block 804, causing the locking block 804 to move out of the locking groove 803.

[0049] The working principle of this utility model is as follows: First, the operator installs the bonding machine and connects it to the power supply. Then, the circuit board is placed at the top center of the base plate 1, and the first air hole 14 is aligned with the second air hole 16. Next, the second electric push rod 902 is activated, causing the piston rod to extend, which in turn drives the movable frame 903 to move down. Then, the movable plate 905 is driven down through the connecting rod 904, which pushes the pressure plate 909 to rotate. The pressure plate 909 then pushes the limit block 907 to move. When the limit block 907 is bonded to the circuit board, the second electric push rod 902 is turned off. This achieves the purpose of limiting the circuit board. Then, the first electric push rod 4 is activated, which causes the piston rod to extend and drive the movable frame 6 to move down, and then drive the cleaning roller 10 to move down, so that the cleaning roller 10 is in contact with the top of the circuit board. Then, the motor 20 is activated, and the motor 20 drives the lead screw 19 to rotate, which in turn drives the threaded seat 21 to move, and drives the top plate 22 to move. Then, the movable frame 6 and the cleaning roller 10 are moved so that the cleaning roller 10 can clean the top of the circuit board. After cleaning, the cleaning roller 10 is moved up to reset.

[0050] Next, place the blue film adhesive tape on the bonding position on the circuit board, and then start the vacuum pump 11. The vacuum pump 11 draws air through the vacuum pipe 12 and the suction hood 13, and also through the first air hole 14 and the second air hole 16, thereby tightly adsorbing the blue film adhesive tape onto the top of the circuit board, thus achieving the purpose of bonding the blue film adhesive tape. After completion, turn off the vacuum pump.

[0051] When the cleaning roller 10 needs to be disassembled for cleaning or replacement, the pull rod 805 can be pulled by the pull plate 807, which will then move the locking block 804. This will cause the locking block 804 to move out of the locking groove 803 and into the groove 808. At this time, the insertion block 802 will no longer be locked and limited. Then the staff can remove the cleaning roller 10 for cleaning or replacement.

[0052] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A bonding machine suitable for large-size printed circuit boards, comprising a base plate (1) and a movable frame (6), characterized in that: Two support plates (2) are installed on both sides of the top of the base plate (1). Each support plate (2) has a limiting component (9), which includes a fixed plate (901) installed above one side of a support plate (2) and movable slots (906) on the four support plates (2). A buffer spring (908) is installed below the interior of each movable slot (906). A movable plate (905) is slidably connected between every two movable slots (906), and a pressure plate (909) is rotatably connected to the bottom of each movable plate (905). The bottom of the fixed plate (909) is rotatably connected to a limiting block (907). The bottom of the fixed plate (901) is equipped with a second electric push rod (902), and the output end of the second electric push rod (902) is equipped with a movable frame (903) through a piston rod. The movable frame (903) is connected to the movable plate (905) by a connecting rod (904). The movable frame (6) is provided with a locking assembly (8), and the locking assembly (8) includes slots (801) opened on both sides of the outer surface of the movable frame (6) and grooves (808) opened on both sides of the interior of the movable frame (6).

2. The bonding machine for large-size printed circuit boards according to claim 1, characterized in that: A plug (802) is inserted into the slot (801), and a locking groove (803) is provided on one side of the plug (802). A spring (806) is installed on one side of the groove (808), and a locking block (804) extending into the locking groove (803) is connected to one end of the spring (806).

3. A bonding machine suitable for large-size printed circuit boards according to claim 2, characterized in that: A pull rod (805) is installed on one side of the locking block (804) and extends through to the outside of the movable frame (6). A pull plate (807) is installed at one end of the pull rod (805).

4. A bonding machine suitable for large-size printed circuit boards according to claim 2, characterized in that: The other side of the two inserts (802) is connected to a rotating shaft (7) via a bearing, and a cleaning roller (10) is installed between the two rotating shafts (7).

5. A bonding machine suitable for large-size printed circuit boards according to claim 1, characterized in that: The top of the support plate (2) is equipped with a horizontal plate (3), and a sliding groove (18) is provided on one side of each of the two horizontal plates (3), and a sliding seat (17) is provided inside one of the sliding grooves (18).

6. A bonding machine suitable for large-size printed circuit boards according to claim 5, characterized in that: A motor (20) is mounted on the outer surface of one of the horizontal plates (3). The output end of the motor (20) is connected to a lead screw (19) extending into another slide (18). A threaded seat (21) is sleeved on the outer wall of the lead screw (19). A top plate (22) is installed between the threaded seat (21) and the slide (17).

7. A bonding machine suitable for large-size printed circuit boards according to claim 6, characterized in that: The top of the top plate (22) is equipped with a first electric push rod (4), and the output end of the first electric push rod (4) is equipped with a movable frame (6) through a piston rod.

8. A bonding machine suitable for large-size printed circuit boards according to claim 1, characterized in that: A circuit board (15) is placed on the top of the base plate (1), and a second air hole (16) is provided on the circuit board (15). An air extractor (11) is installed at the bottom of the base plate (1). An air extraction pipe (12) is connected to the air inlet end of the air extractor (11), and an air suction hood (13) is installed at the top end of the air extraction pipe (12). The top of the air suction hood (13) is connected to the base plate (1). A first air hole (14) is provided inside the base plate (1).

9. A bonding machine suitable for large-size printed circuit boards according to claim 1, characterized in that: The bottom of the limiting block (907) is attached to the top of the base plate (1), and a rubber pad is installed on one side of the limiting block (907).

10. A bonding machine for large-size printed circuit boards according to claim 1, characterized in that: The bottom of the movable plate (905) is connected to the top of the buffer spring (908), and the movable plate (905) is slidably connected to the movable groove (906).

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