PCB hot-pressing buffer paper surface cleaning structure

Abstract

The utility model discloses a PCB hot-pressing buffer paper surface cleaning structure which comprises a machine frame, stroke holes penetrating to the bottom are formed in the outer walls of the two sides of the machine frame, sliding seats are installed in the two stroke holes in a sliding mode, and a distance adjusting assembly is installed between the two sliding seats on the same side. And the two spacing adjusting assemblies are jointly provided with a synchronous driving assembly. According to the PCB hot-pressing buffer paper cleaning device, through the arrangement of the stroke hole, the sliding base, the distance adjusting assembly, the synchronous driving assembly, the installation shaft, the rolling brushes, the motor, the synchronous belt assembly and the adjustable tensioning wheel, the distance between the two rolling brushes can be rapidly adjusted through the linkage mechanism, so that the requirement for cleaning PCB hot-pressing buffer paper with different thicknesses is met; and meanwhile, through the arrangement of the adjustable tensioning wheel, the transmission reliability of the adjusted synchronous belt assembly is ensured, a traditional dual-motor driving scheme is replaced with a mechanical linkage mechanism, and the manufacturing and maintenance cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of surface cleaning technology, and in particular to a surface cleaning structure for PCB hot-pressing buffer paper. Background Technology

[0002] PCB hot-pressing cushioning paper is a key material used in the PCB manufacturing process. It is mainly used to provide cushioning and uniform pressure distribution during hot pressing to ensure the lamination quality of the PCB.

[0003] Currently, in the separate processing of PCB hot pressing buffer paper, surface cleaning before cutting is crucial. Its main function is to remove surface dust, fibers, and hard particles, ensuring that the cut edges are smooth and burr-free, and improving dimensional accuracy. At the same time, it reduces the wear of impurities on the paper cutting blades, protecting the stability of the equipment. The buffer paper has a more uniform thickness after cleaning, avoiding uneven pressure or contamination transfer problems during subsequent PCB hot pressing, thereby ensuring the quality and reliability of the hot pressing process.

[0004] In existing PCB hot-pressing buffer paper cleaning processes, the conventional approach is to use a dual-roller brush for initial cleaning, followed by electrostatic dust removal for finer finishing. Currently, mainstream equipment equips each brush roller with an independent drive motor. While this design allows for flexible adjustment of the brush roller spacing, it has significant drawbacks: firstly, the dual-motor configuration directly increases equipment manufacturing costs; secondly, it increases the complexity of the control system, leading to higher maintenance costs. In practical applications, we have found that this excessive design is uneconomical because the buffer paper thickness is relatively fixed, and the need for frequent adjustments is limited, thus adding unnecessary cost burdens to the equipment. A more reasonable solution is to use a single-motor drive combined with a mechanical linkage mechanism, which, while ensuring basic adjustment functions, can significantly reduce equipment cost and maintenance complexity.

[0005] To address this, we propose a surface cleaning structure for PCB hot-pressing buffer paper. Utility Model Content

[0006] This utility model is a PCB hot-pressing buffer paper surface cleaning structure proposed to overcome the shortcomings of the existing technology.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a PCB hot-pressing buffer paper surface cleaning structure, including a frame, wherein the outer walls on both sides of the frame are provided with stroke holes extending to the bottom, and a slide block is slidably installed inside the two stroke holes, a spacing adjustment component is installed between the two slide blocks on the same side, and a synchronous drive component is installed between the two spacing adjustment components.

[0008] Each of the four slides has a mounting shaft rotatably mounted on one side of its outer surface. The inner side of the frame is provided with two roller brushes, and the two ends of the roller brushes are detachably fixed to the adjacent mounting shafts.

[0009] A motor is fixedly mounted on one side of the outer surface of a single slide, and the drive shaft of the motor passes through the adjacent slide and is fixedly connected to the adjacent mounting shaft;

[0010] A timing belt assembly is installed between two adjacent mounting shafts;

[0011] An adjustable tension wheel is installed on one side of the outer surface of the frame, and the adjustable tension wheel is connected to the synchronous belt pulley assembly.

[0012] Furthermore, both of the aforementioned spacing adjustment components include a support base, and the support base is fixedly connected to the frame. The top of the support base is provided with a bidirectional screw extending downwards, and the bidirectional screw is rotatably connected to the support base. Two adjacent slides are symmetrically threaded onto the outer surface of the bidirectional screw, which can drive the two slides to move closer or further apart.

[0013] Furthermore, the synchronous drive assembly includes two first synchronous pulleys, which are fixedly mounted on the top of the bidirectional screw. A first synchronous belt is meshed between the two first synchronous pulleys, which can synchronously drive the two pitch adjustment assemblies to operate.

[0014] Furthermore, a handle is fixedly connected to one side edge of the top of each of the first timing pulleys, which facilitates manual rotation of the handle.

[0015] Furthermore, the synchronous belt assembly includes two second synchronous pulleys, one of which has its shaft passing through an adjacent slide and fixedly connected to an adjacent mounting shaft. The two second synchronous pulleys are meshed together with a second synchronous belt. One end of the remaining second synchronous pulley is fixedly connected to a first gear, which passes through the slide and is rotatably connected to it. The outer surface of the first gear meshes with a second gear, which is fixedly connected to an adjacent mounting shaft, ensuring that the two rollers rotate in opposite directions.

[0016] Furthermore, the adjustable tensioning wheel includes a fixed base, which is fixedly connected to the frame. The top of the fixed base is provided with a hand-tightening screw that extends into the interior, and the hand-tightening screw is threadedly connected to the fixed base. The bottom of the hand-tightening screw is rotatably connected to a movable block, and one end of the movable block is rotatably connected to a tensioning pulley. The tensioning pulley is engaged with the inner side of the second synchronous belt, and the position of the movable block can be adjusted.

[0017] Furthermore, the movable block and the fixed seat are slidably connected, and the fixed seat has a limiting effect on the movable block, which can ensure the stability of the movable block's movement.

[0018] The beneficial effects of this utility model are:

[0019] In use, this utility model provides a PCB hot-pressing buffer paper surface cleaning structure. Through the setting of stroke holes, slides, spacing adjustment components, synchronous drive components, mounting shafts, roller brushes, motors, synchronous belt components, and adjustable tension wheels, the spacing between the two roller brushes can be quickly adjusted via a linkage mechanism to meet the cleaning needs of PCB hot-pressing buffer paper of different thicknesses. At the same time, the adjustable tension wheel ensures the transmission reliability of the synchronous belt component after adjustment. The mechanical linkage mechanism replaces the traditional dual-motor drive scheme, reducing manufacturing and maintenance costs. Attached Figure Description

[0020] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 : A perspective view of this utility model;

[0022] Figure 2 Side view of this utility model;

[0023] Figure 3 : Front view of this utility model;

[0024] Figure 4 : Schematic diagram of the connection between the first gear and the second gear of this utility model.

[0025] The attached figures are labeled as follows:

[0026] 1. Frame; 2. First synchronous belt; 3. Roller brush; 4. Handle; 5. Motor; 6. Fixed base; 7. Stroke hole; 8. Movable block; 9. Double-acting screw; 10. Slide; 11. Hand-tightening screw; 12. Tensioner pulley; 13. Second synchronous belt; 14. Second synchronous pulley; 15. First synchronous pulley; 16. Support base; 17. Mounting shaft; 18. Second gear; 19. First gear. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0028] like Figures 1 to 4 As shown, a PCB hot-pressing buffer paper surface cleaning structure is disclosed, comprising a frame 1. Both outer walls of the frame 1 have through-holes 7 extending to the bottom. Slide seats 10 are slidably mounted inside each of the two through-holes 7. A spacing adjustment assembly is mounted between the two slide seats 10 on the same side. A synchronous drive assembly is mounted between the two spacing adjustment assemblies. Each spacing adjustment assembly includes a support base 16, which is fixedly connected to the frame 1. A bidirectional screw 9 extending downwards is provided at the top of the support base 16. Furthermore, the bidirectional screw 9 is rotatably connected to the support base 16, and two adjacent slide blocks 10 are symmetrically threaded onto the outer surface of the bidirectional screw 9. The synchronous drive assembly includes two first synchronous pulleys 15, and the first synchronous pulleys 15 are fixedly installed on the top of the bidirectional screw 9. The two first synchronous pulleys 15 are meshed together with a first synchronous belt 2. A handle 4 is fixedly connected to one edge of the top of each first synchronous pulley 15. The bidirectional screw 9 adopts a trapezoidal thread screw, which has self-locking properties to prevent it from shifting due to vibration or load.

[0029] Each of the four slide blocks 10 has a mounting shaft 17 rotatably mounted on one side of its outer surface. The inner side of the frame 1 is provided with two roller brushes 3, and the two ends of the roller brushes 3 are respectively detachably fixed to the adjacent mounting shafts 17. The roller brushes 3 and the mounting shafts 17 are fixed with bolts, which facilitates disassembly and assembly.

[0030] A motor 5 is fixedly installed on one side of the outer surface of a single slide block 10, and the drive shaft of the motor 5 passes through the adjacent slide blocks 10 and is fixedly connected to the adjacent mounting shaft 17.

[0031] A synchronous belt assembly is installed between two adjacent mounting shafts 17. The synchronous belt assembly includes two second synchronous pulleys 14, one of which has its shaft passing through an adjacent slide 10 and is fixedly connected to the adjacent mounting shaft 17. A second synchronous belt 13 is meshed between the two second synchronous pulleys 14. One end of the remaining second synchronous pulley 14 is fixedly connected to a first gear 19, which passes through the slide 10 and is rotatably connected to it. A second gear 18 is meshed with the outer surface of the first gear 19, and the second gear 18 is fixedly connected to the adjacent mounting shaft 17.

[0032] An adjustable tensioning wheel is installed on one side of the outer surface of the frame 1, and the adjustable tensioning wheel is connected to the synchronous belt pulley assembly. The adjustable tensioning wheel includes a fixed seat 6, and the fixed seat 6 is fixedly connected to the frame 1. The top of the fixed seat 6 is provided with a hand-tightening screw 11 that extends into the interior, and the hand-tightening screw 11 is threadedly connected to the fixed seat 6. The bottom of the hand-tightening screw 11 is rotatably connected to a movable block 8, and one end of the movable block 8 is rotatably connected to a tensioning pulley 12, and the tensioning pulley 12 is engaged and installed on the inner side of the second synchronous belt 13. The movable block 8 is slidably connected to the fixed seat 6. The hand-tightening screw 11 adopts a trapezoidal thread screw, which has self-locking properties to prevent it from shifting due to vibration or load.

[0033] Working principle: During spacing adjustment, the handle 4 drives the first synchronous pulley 15 connected to it to rotate. The first synchronous pulley 15 drives the other first synchronous pulley 15 to rotate via the first synchronous belt 2, achieving synchronous rotation of the two bidirectional screws 9. The two bidirectional screws 9 drive the two slides 10 connected to them to move closer together. The slides 10 drive the two roller brushes 3 to move closer together via the mounting shaft 17 until the cleaning requirements of the PCB hot-pressing buffer paper are met. Then, the hand screw 11 is turned, which drives the movable block 8 away from the slide 10, thereby driving the tension pulley 12 away from the slide 10 and tensioning the second synchronous belt 13 until the desired result is achieved. During operation, the motor 5 drives the roller brush 3 connected to it to rotate via the mounting shaft 17. The roller brush 3 drives the second gear 18 to rotate via the mounting shaft 17 on the other side. The second gear 18 drives the second synchronous pulley 14 connected to it to rotate via the first gear 19. The second synchronous pulley 14 rotates synchronously under the action of the second synchronous belt 13, thereby driving the other roller brush 3 to rotate.

[0034] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A PCB hot-pressing buffer paper surface cleaning structure comprising a rack (1), characterized in that: Both sides of the frame (1) are provided with stroke holes (7) that extend to the bottom. Slide seats (10) are slidably installed inside the two stroke holes (7). A spacing adjustment component is installed between the two slide seats (10) on the same side. A synchronous drive component is installed between the two spacing adjustment components. Each of the four slide blocks (10) has a mounting shaft (17) rotatably mounted on one side of its outer surface. The inner side of the frame (1) is provided with two roller brushes (3), and the two ends of the roller brushes (3) are detachably fixed to the adjacent mounting shafts (17). A motor (5) is fixedly mounted on one side of the outer surface of a single slide (10), and the drive shaft of the motor (5) passes through the adjacent slide (10) and is fixedly connected to the adjacent mounting shaft (17); A timing belt assembly is installed between two adjacent mounting shafts (17); An adjustable tension wheel is installed on one side of the outer surface of the frame (1), and the adjustable tension wheel is connected to the synchronous belt pulley assembly.

2. The PCB hot-pressing buffer paper surface cleaning structure according to claim 1, characterized in that: Both of the aforementioned spacing adjustment components include a support base (16), and the support base (16) is fixedly connected to the frame (1). The top of the support base (16) is provided with a bidirectional screw (9) extending downwards, and the bidirectional screw (9) is rotatably connected to the support base (16). Two adjacent slides (10) are symmetrically threaded onto the outer surface of the bidirectional screw (9).

3. The PCB hot-press buffer paper surface cleaning structure according to claim 2, characterized in that: The synchronous drive assembly includes two first synchronous pulleys (15), and the first synchronous pulleys (15) are fixedly installed on the top of the bidirectional screw (9). The two first synchronous pulleys (15) are meshed together by a first synchronous belt (2).

4. The PCB hot-press buffer paper surface cleaning structure according to claim 3, characterized in that: A handle (4) is fixedly connected to one side edge of the top of each of the first timing pulleys (15).

5. The PCB hot-press buffer paper surface cleaning structure of claim 1, wherein: The synchronous belt assembly includes two second synchronous pulleys (14), and the shaft of one of the second synchronous pulleys (14) passes through the adjacent slide (10) and is fixedly connected to the adjacent mounting shaft (17). The two second synchronous pulleys (14) are meshed together with a second synchronous belt (13). One end of the remaining second synchronous pulley (14) is fixedly connected to a first gear (19), and the first gear (19) passes through the slide (10) and is rotatably connected to the slide (10). The outer surface of the first gear (19) is meshed with a second gear (18), and the second gear (18) is fixedly connected to the adjacent mounting shaft (17).

6. The PCB hot-press buffer paper surface cleaning structure according to claim 5, characterized in that: The adjustable tensioning wheel includes a fixed seat (6), and the fixed seat (6) is fixedly connected to the frame (1). The top of the fixed seat (6) is provided with a hand-tightening screw (11) that extends into the interior, and the hand-tightening screw (11) is threadedly connected to the fixed seat (6). The bottom of the hand-tightening screw (11) is rotatably connected to a movable block (8), and one end of the movable block (8) is rotatably connected to a tensioning pulley (12), and the tensioning pulley (12) is meshed and installed on the inner side of the second synchronous belt (13).

7. The PCB hot-press buffer paper surface cleaning structure according to claim 6, characterized in that: The movable block (8) is slidably connected to the fixed seat (6).

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