Circuit board flattening device

Abstract

The utility model discloses a circuit board flattening device which comprises a base, a plurality of moving rollers, a fixed box, two moving plates, an air bag, a moving rod, a spring, a guide plate, an air blower and a three-way pipe. Wherein the fixed box is fixedly installed on the base through the first supporting frame, and the fixed box is located on the side, close to the base, of the movable roller; the two moving plates are slidably mounted in the fixed box; the air bag is arranged in the fixed box and located between the two movable plates. The moving rod is arranged on the side, away from the airbag, of the moving plate. The spring sleeves the moving rod; the guide plate is arranged at one end of the moving rod away from the moving plate; the air blower is arranged on the fixed box and is communicated with the air bag; the three-way pipe is communicated with the air bag and provided with a plurality of nozzles, and the nozzles are located on the side, away from the base, of the moving roller. Through the arrangement, the inclined circuit board can be corrected, and dust on the surface of the circuit board can be synchronously removed, so that the risk that the surface of the circuit board is scratched is reduced, and the possibility of damaging elements on the circuit board is also reduced.

Description

Technical Field

[0001] This application relates to the field of circuit board manufacturing technology, and in particular to a circuit board flattening device. Background Technology

[0002] A PCB (Printed Circuit Board) is a component that provides electrical connections for electronic components. Its development spans over a century; its design primarily involves layout design. The main advantages of using PCBs are significantly reduced wiring and assembly errors, improved automation, and increased production efficiency. The PCB manufacturing process involves multiple steps, including lamination, drilling, electroplating, solder masking, etching, and testing. During production, some boards may warp, requiring the use of flattening devices to smooth them out.

[0003] However, during the transportation of circuit boards, traditional circuit board flattening devices may cause the circuit boards to tilt, and the surface of the circuit boards may be dusty. If the circuit boards are flattened under these circumstances, it may cause scratches on the surface of the circuit boards or even damage the components on the circuit boards. Utility Model Content

[0004] The main purpose of this application is to provide a circuit board flattening device, which aims to solve the technical problems that traditional circuit board flattening devices are prone to causing circuit board tilting and dust accumulation on the circuit board, resulting in circuit board damage.

[0005] To achieve the above objectives, this application provides a circuit board flattening device, including a base, multiple movable rollers, a fixed box, two movable plates, an airbag, a movable rod, a spring, a guide plate, a blower, and a T-shaped pipe; wherein, the base has two oppositely arranged side plates along its length, and the two side plates are fixedly installed on both sides of the base along its width by a bracket; the multiple movable rollers are rotatably installed between the two side plates, and the multiple movable rollers are arranged in parallel pairs; the fixed box is fixedly installed on the base by a first support frame, and the fixed box is located on the... The moving roller is located on the side near the base; the two moving plates are slidably mounted inside the fixed box; the airbag is located inside the fixed box and between the two moving plates; the moving rod is located on the side of the moving plate away from the airbag; the spring is sleeved on the moving rod; the guide plate is located at the end of the moving rod away from the moving plate; the blower is located on the fixed box and communicates with the airbag; the three-way pipe communicates with the airbag and has multiple nozzles, the nozzles being located on the side of the moving roller away from the base.

[0006] Optionally, the moving rod passes through the fixed box, one end of the spring is fixedly connected to the inner wall of one side of the fixed box, and the other end of the spring is fixedly connected to one side of the moving plate.

[0007] Optionally, the flattening assembly includes: a second support frame, a connecting frame, a fixed frame, a lower pressure roller, a first motor, a slider, an upper pressure roller, and a second motor; wherein, the second support frame is fixedly installed inside the base; the connecting frame is fixedly installed inside the second support frame; the fixed frame is fixedly installed on top of the connecting frame; the lower pressure roller is rotatably installed between the two fixed frames; the first motor is fixedly installed on one side of the fixed frame; the slider is slidably installed inside the fixed frame; the upper pressure roller is rotatably installed between the two sliders; and the second motor is fixedly installed on one side of the fixed frame.

[0008] Optionally, the output end of the first motor passes through the fixed frame and is fixedly connected to one end of one of the lower pressure rollers; the output end of the second motor passes through the slider and is fixedly connected to one end of one of the upper pressure rollers.

[0009] Optionally, the adjusting assembly includes a threaded rod and a handwheel; wherein the threaded rod is screwed onto the fixed frame, and the bottom end of the threaded rod is rotatably connected to the top of the slider; the handwheel is fixedly mounted on the top end of the threaded rod; and the fixed frame has a threaded hole adapted to the threaded rod inside.

[0010] Optionally, a protective cover is fixedly connected to one side of the fixed frame, and the end of the lower pressure roller away from the first motor passes through the fixed frame and is fixedly connected to a first roller.

[0011] Optionally, a first timing belt is movably connected between the two first rollers, and the first rollers and the first timing belt are disposed between the fixed frame and the protective cover.

[0012] Optionally, the end of the upper pressure roller away from the second motor passes through the slider and is fixedly connected to a second roller, and a second synchronous belt is movably connected between the two second rollers.

[0013] Optionally, the second roller and the second timing belt are disposed between the fixed frame and the protective cover.

[0014] Optionally, the device further includes casters that are detachably mounted on the end face of the base away from the movable roller.

[0015] This application discloses a circuit board flattening device. By activating a blower, air is pumped into an air chamber, causing the air chamber to expand. This expansion pushes two movable plates to the sides, which in turn move a fixedly connected movable rod. The moving rod then moves a fixedly connected guide plate outwards, compressing a spring. The circuit board is then placed on a movable roller, allowing it to move. Next, the solenoid valve on the three-way pipe is opened, venting air from the air chamber into the three-way pipe and out through multiple nozzles, blowing away dust from the circuit board. Simultaneously, the air chamber shrinks, and the elastic potential energy of the spring pushes the movable plates inwards, ultimately moving the two guide plates inwards synchronously, thus guiding the circuit board. This design effectively corrects tilted circuit boards and simultaneously removes dust from their surfaces, reducing the risk of damage. Attached Figure Description

[0016] Figure 1 Schematic diagram of the circuit board flattening device provided in the embodiments of this application Figure 1 ;

[0017] Figure 2 Schematic diagram of the circuit board flattening device provided in the embodiments of this application Figure 2 ;

[0018] Figure 3 Schematic diagram of the circuit board flattening device provided in the embodiments of this application Figure 3 ;

[0019] Figure 4 This is a cross-sectional view of the base in an embodiment of this application;

[0020] Figure 5 This is a cross-sectional view of the fixing box in an embodiment of this application;

[0021] Figure 6 Examples of embodiments in this application Figure 5 Enlarged view of point A in the image;

[0022] Figure 7 Examples of embodiments in this application Figure 2 Enlarged view of point B in the image;

[0023] Figure 8 This is a schematic diagram of the airbag installation in an embodiment of this application;

[0024] Figure 9 This is a schematic diagram of the slider installation in an embodiment of this application.

[0025] Reference numerals: 1. Base; 2. Caster wheel; 3. Moving roller; 4. First support frame; 6. Flattening assembly; 7. Adjusting assembly; 8. Fixing box; 9. Moving plate; 10. Airbag; 11. Moving rod; 12. Spring; 13. Guide plate; 14. Blower; 15. T-pipe; 16. Nozzle; 17. Second support frame; 18. Connecting frame; 19. Fixing frame; 20. Lower pressure roller; 21. First motor; 22. Slider; 23. Upper pressure roller; 24. Threaded rod; 25. Handwheel; 26. Protective cover; 27. First roller; 28. First synchronous belt; 29. ​​Second roller; 30. Second synchronous belt; 31. Second motor.

[0026] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0027] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0028] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0029] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0030] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0031] An investigation revealed that a Chinese utility model patent discloses a circuit board flattening device (publication number: CN210670795U), comprising a base, with support legs welded to the four corners of the base's bottom end, a plate platform screwed to the rear side of the base, and a flattening mechanism installed at the top of the base. The flattening mechanism includes two support plates, which are screwed to the left and right sides of the top of the base, respectively. A positioning mechanism is installed in the middle of the inner front end of the support plates. A first pressure roller and a second pressure roller are rotatably connected to the front of the upper and lower ends of the inner side of the support plates via bearings. The inner rings of the bearings are interference-fitted to the left and right sides of the outer walls of the first and second pressure rollers, and the outer rings of the bearings are fixedly connected to the inner side of the support plates.

[0032] In the aforementioned patent, the positioning mechanism adjusts the distance between the two baffles. Under the limitation of the baffles, the circuit board to be flattened can smoothly enter the flattening mechanism. Under the action of the flattening mechanism, the circuit board is flattened. In actual use, the circuit board can be positioned according to different circuit board models, reducing the difficulty of operation for workers, ensuring the stability of the circuit board placement, ensuring the flattening quality of the circuit board, and making it easier to flatten the circuit board for use. However, during the transportation of the circuit board, the circuit board may tilt, and the surface of the circuit board may be dusty. If the circuit board is flattened under these circumstances, it may cause scratches on the surface of the circuit board or even damage the components on the circuit board.

[0033] The present application will now be described in detail with reference to the accompanying drawings and embodiments.

[0034] Figure 1 Schematic diagram of the circuit board flattening device provided in the embodiments of this application Figure 1 , Figure 2 Schematic diagram of the circuit board flattening device provided in the embodiments of this application Figure 2 , Figure 3 Schematic diagram of the circuit board flattening device provided in the embodiments of this application Figure 3 , Figure 4 This is a cross-sectional view of the base in an embodiment of this application. Figure 5 This is a cross-sectional view of the fixing box in an embodiment of this application. Figure 6 Examples of embodiments in this application Figure 5 Enlarged view of point A in the image. Figure 7 Examples of embodiments in this application Figure 2 Enlarged view of point B in the image. Figure 8 This is a schematic diagram of the airbag installation in an embodiment of this application. Figure 9 This is a schematic diagram of the slider installation in an embodiment of this application.

[0035] This application provides a circuit board flattening device, such as... Figure 1 As shown, the circuit board flattening device may include a base 1, multiple moving rollers 3, a fixed box 8, two moving plates 9, an airbag 10, a moving rod 11, a spring 12, a guide plate 13, a blower 14, and a three-way pipe 15; wherein,

[0036] Please combine Figure 2 and Figure 3 Referring to the above, the base 1 has two side plates arranged opposite each other along its length, and the two side plates are fixedly installed on both sides of the base 1 along its width by a bracket; multiple moving rollers 3 are rotatably installed between the two side plates, and the multiple moving rollers 3 are arranged in parallel pairs; a fixed box 8 is fixedly installed on the base 1 by a first support frame 4, and the fixed box 8 is located on the side of the moving rollers 3 closer to the base 1; two moving plates 9 are slidably installed inside the fixed box 8; an airbag 10 is located inside the fixed box 8 and between the two moving plates 9; a moving rod 11 is located on the side of the moving plate 9 away from the airbag 10; a spring 12 is sleeved on the moving rod 11; a guide plate 13 is located at the end of the moving rod 11 away from the moving plate 9; a blower 14 is located on the fixed box 8 and communicates with the airbag 10; a three-way pipe 15 communicates with the airbag 10, and the three-way pipe 15 has multiple nozzles 16, and the nozzles 16 are located on the side of the moving rollers 3 away from the base 1.

[0037] Furthermore, the moving rod 11 passes through the fixed box 8, one end of the spring 12 is fixedly connected to the inner wall of one side of the fixed box 8, and the other end of the spring 12 is fixedly connected to one side of the moving plate 9.

[0038] Optionally, the device may also include casters 2, which are detachably mounted on the end face of the base 1 away from the moving roller 3. Four casters 2 are located below the base 1, facilitating the movement of the base 1 when the casters 2 rotate.

[0039] Multiple movable rollers 3 are rotatably mounted inside the base 1 to facilitate the movement of the circuit board on the base 1. The first support frame 4 is fixedly mounted inside the base 1 to support the fixed box 8.

[0040] The circuit board flattening device proposed in this embodiment works by activating a blower 14, which inflates the airbag 10, causing it to expand. This expansion pushes two movable plates 9 to the sides, which in turn move a fixedly connected movable rod 11. The rod 11 then moves a fixedly connected guide plate 13 outwards, compressing a spring 12. The circuit board is then placed on a movable roller 3, allowing it to move. Next, the solenoid valve on the three-way pipe 15 is opened, releasing air from the airbag 10 into the pipe and through multiple nozzles 16, thus removing dust from the circuit board. Simultaneously, the airbag 10 shrinks, and the elastic potential energy of the spring 12 pushes the movable plates 9 inwards, ultimately moving the two guide plates 13 inwards, thus guiding the circuit board. This setup effectively corrects tilted circuit boards and simultaneously removes dust from their surfaces.

[0041] Please continue to combine Figure 4 , Figure 5 and Figure 6 Referring to the exemplary embodiment, the flattening assembly 6 may include: a second support frame 17, a connecting frame 18, a fixing frame 19, a lower pressure roller 20, a first motor 21, a slider 22, an upper pressure roller 23, and a second motor 31; wherein, the second support frame 17 is fixedly installed inside the base 1; the connecting frame 18 is fixedly installed inside the second support frame 17; the fixing frame 19 is fixedly installed on the top of the connecting frame 18; the lower pressure roller 20 is rotatably installed between the two fixing frames 19; the first motor 21 is fixedly installed on one side of the fixing frame 19; the slider 22 is slidably installed inside the fixing frame 19; the upper pressure roller 23 is rotatably installed between the two sliders 22; and the second motor 31 is fixedly installed on one side of the fixing frame 19.

[0042] The output end of the first motor 21 passes through the fixed frame 19 and is fixedly connected to one end of one of the lower pressure rollers 20. The output end of the second motor 31 passes through the slider 22 and is fixedly connected to one end of one of the upper pressure rollers 23.

[0043] Specifically, the dust-removed circuit board is moved between the lower pressure roller 20 and the upper pressure roller 23 by the moving roller 3. The first motor 21 is activated, and its output drives the lower pressure roller 20, which is fixedly connected to it, to rotate. The rotation of the lower pressure roller 20 moves the circuit board on its surface. Simultaneously, the second motor 31 is activated, and its output drives the upper pressure roller 23, which is also fixedly connected to it, to rotate. Through the cooperation of the upper and lower pressure rollers 20, the circuit board is flattened. The distance between the upper and lower pressure rollers 23 can be adjusted according to the thickness of the circuit board to achieve the best flattening effect. This not only reduces the risk of scratching the circuit board surface but also lowers the possibility of damaging the components on the board.

[0044] Please combine Figure 7 - Figure 9 Referring to the exemplary embodiment, the adjustment component 7 may include a threaded rod 24 and a handwheel 25; wherein the threaded rod 24 is screwed onto the fixed frame 19, and the bottom end of the threaded rod 24 is rotatably connected to the top of the slider 22; the handwheel 25 is fixedly mounted on the top end of the threaded rod 24; and the fixed frame 19 has a threaded hole inside that is adapted to the threaded rod 24.

[0045] Specifically, by rotating the handwheel 25, the threaded rod 24 can be rotated in the threaded hole of the fixed frame 19. Due to the action of the thread, the rotation of the threaded rod 24 is converted into linear motion, thereby pushing or pulling the slider 22 to slide inside the fixed frame 19. The sliding of the slider 22 then drives the upper pressure roller 23 to move up and down, realizing the adjustment of the distance between the upper pressure roller 23 and the lower pressure roller 20 to adapt to the flattening requirements of circuit boards of different thicknesses. This design makes the circuit board flattening device more flexible and applicable, and can handle more types of circuit boards.

[0046] In one embodiment, a protective cover 26 is fixedly connected to one side of the fixed frame 19, and the end of the lower pressure roller 20 away from the first motor 21 passes through the fixed frame 19 and is fixedly connected to the first roller 27.

[0047] A first synchronous belt 28 is movably connected between the two first rollers 27, and the first rollers 27 and the first synchronous belt 28 are arranged between the fixed frame 19 and the protective cover 26.

[0048] The end of the upper pressure roller 23 away from the second motor 31 passes through the slider 22 and is fixedly connected to the second roller 29. The two second rollers 29 are movably connected to the second synchronous belt 30.

[0049] The second roller 29 and the second synchronous belt 30 are disposed between the fixed frame 19 and the protective cover 26.

[0050] Specifically, the output shaft of the first motor 21 is fixedly connected to one of the first rollers 27. The first motor 21 drives the first roller 27 to rotate. The first roller 27 drives the other first roller 27 to rotate via the first synchronous belt 28, thereby driving the lower pressure roller 20 to rotate. The output shaft of the second motor 31 is fixedly connected to one of the second rollers 29. The second motor 31 drives the second roller 29 to rotate. The second roller 29 drives the other second roller 29 to rotate via the second synchronous belt 30, thereby driving the upper pressure roller 23 to rotate. Through this arrangement, the upper pressure roller 23 and the lower pressure roller 20 are rotated synchronously, thereby effectively flattening the circuit board.

[0051] The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A circuit board flattening device, characterized in that, include: The base (1) has two side plates arranged opposite each other along the length direction, and the two side plates are fixedly installed on both sides of the base (1) along the width direction by a bracket; Multiple movable rollers (3) are rotatably mounted between the two side plates, and the multiple movable rollers (3) are arranged in parallel pairs; The fixed box (8) is fixedly installed on the base (1) by the first support frame (4), and the fixed box (8) is located on the side of the moving roller (3) close to the base (1); Two movable plates (9) are slidably installed inside the fixed box (8); An airbag (10) is disposed inside the fixed box (8) and located between the two movable plates (9); A movable rod (11) is provided on the side of the movable plate (9) opposite to the airbag (10); A spring (12) is sleeved on the moving rod (11); A guide plate (13) is provided at the end of the moving rod (11) away from the moving plate (9); A blower (14) is mounted on the fixed box (8) and is connected to the airbag (10); A three-way tube (15) is connected to the airbag (10), and the three-way tube (15) has a plurality of nozzles (16) located on the side of the moving roller (3) away from the base (1).

2. The circuit board flattening device according to claim 1, characterized in that, The moving rod (11) passes through the fixed box (8), one end of the spring (12) is fixedly connected to the inner wall of one side of the fixed box (8), and the other end of the spring (12) is fixedly connected to one side of the moving plate (9).

3. The circuit board flattening device according to claim 1, characterized in that, The device further includes a flattening assembly (6), which comprises: The second support frame (17) is fixedly installed inside the base (1); The connecting frame (18) is fixedly installed inside the second support frame (17); A fixing bracket (19) is fixedly installed on the top of the connecting bracket (18); The lower pressure roller (20) is rotatably mounted between the two fixed frames (19); The first motor (21) is fixedly installed on one side of the fixing frame (19); The slider (22) is slidably mounted inside the fixing frame (19); The upper pressure roller (23) is rotatably mounted between the two sliders (22); The second motor (31) is fixedly installed on one side of the fixed frame (19).

4. The circuit board flattening device according to claim 3, characterized in that, The output end of the first motor (21) passes through the fixed frame (19), and the output end of the first motor (21) is fixedly connected to one end of one of the lower pressure rollers (20). The output end of the second motor (31) passes through the slider (22), and the output end of the second motor (31) is fixedly connected to one end of one of the upper pressure rollers (23).

5. The circuit board flattening device according to claim 4, characterized in that, The device further includes an adjustment component (7), the adjustment component (7) comprising: A threaded rod (24) is screwed onto the fixed frame (19), and the bottom end of the threaded rod (24) is rotatably connected to the top of the slider (22); The handwheel (25) is fixedly installed at the top of the threaded rod (24); The fixing frame (19) has a threaded hole inside that is compatible with the threaded rod (24).

6. The circuit board flattening device according to claim 3, characterized in that, A protective cover (26) is fixedly connected to one side of the fixed frame (19), and the end of the lower pressure roller (20) away from the first motor (21) passes through the fixed frame (19) and is fixedly connected to the first roller (27).

7. The circuit board flattening device according to claim 6, characterized in that, A first timing belt (28) is movably connected between the two first rollers (27), and the first rollers (27) and the first timing belt (28) are disposed between the fixed frame (19) and the protective cover (26).

8. The circuit board flattening device according to claim 7, characterized in that, The upper pressure roller (23) is located away from the second motor (31) and passes through the slider (22) and is fixedly connected to the second roller (29). The two second rollers (29) are movably connected to each other by a second synchronous belt (30).

9. The circuit board flattening device according to claim 8, characterized in that, The second roller (29) and the second synchronous belt (30) are disposed between the fixed frame (19) and the protective cover (26).

10. The circuit board flattening device according to claim 8, characterized in that, The device further includes: The caster wheel (2) is detachably mounted on the end face of the base (1) away from the moving roller (3).

Images