Assembly for spraying PCB (Printed Circuit Board)
By designing a lifting and rotating mechanism consisting of a disc body, a U-shaped frame, and a limiting mechanism, the applicability and stability issues of existing PCB board spraying fixtures were solved. This enabled efficient and stable spraying of different end faces of the PCB board at the same location, thereby improving processing efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QIMAO ELECTRONICS DINGNAN CO LTD
- Filing Date
- 2025-04-12
- Publication Date
- 2026-05-08
AI Technical Summary
Existing PCB board spraying fixtures are only suitable for a single size, which can easily damage the PCB board. Furthermore, the spraying equipment needs to be moved to spray different end faces, which affects processing efficiency.
An assembly comprising a disc body, a U-shaped frame, a strip plate, and a limiting mechanism was designed. The PCB board is stably fixed through a lifting and rotating mechanism, and different end faces can be sprayed at the same position. The limiting mechanism enhances stability and avoids affecting the spraying process.
This technology enables spraying different end faces of a PCB board at the same location, improving stability and avoiding damage and positional movement during the spraying process, thus increasing processing efficiency.
Smart Images

Figure CN224208294U_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of PCB board processing, and in particular to a component for PCB board spraying. Background Technology
[0002] PCB boards, also known as printed circuit boards, can be categorized by the number of layers, such as single-sided, double-sided, four-layer, and other multi-layer PCBs. The appropriate type can be selected based on specific needs. PCB boards require spray painting during processing. Clamps are used for fixing during spray painting, making their use crucial. However, some clamps are currently only suitable for single-size PCB boards and can easily damage the PCB board during clamping, reducing the effectiveness of the clamps.
[0003] Therefore, there is a PCB board spraying fixture with patent number CN220697165U. This equipment has the following defects when fixing the PCB board: the spraying equipment needs to be moved to the front and back sides of the PCB board to spray different end faces, which is not conducive to the product processing. Summary of the Invention
[0004] The purpose of this invention is to provide a component for PCB board spraying.
[0005] The technical problem of this invention is mainly solved by the following technical solution:
[0006] A component for PCB board spraying includes a tray body, a U-shaped frame is provided in the tray body, and a strip plate I, a limiting mechanism and a strip plate II are arranged sequentially above the U-shaped frame. A rotating shaft is provided on the strip plate I through the U-shaped frame, and the strip plate II is driven by a lifting mechanism. The rotating shaft and the lifting mechanism are driven by a rotation mechanism.
[0007] The lifting mechanism includes a hydraulic rod, the bottom end of which is provided with a base. A square rod connected to a strip plate II is fixed to the base via a bearing I. A square tube is sleeved on the square rod, and the square tube is fixed to the mounting plate via a bearing II.
[0008] The rotating mechanism includes a vertical rod driven by a motor. The upper and lower ends of the vertical rod are equipped with pulleys on the corresponding rotating shaft and square tube. The two sets of pulleys on the same horizontal plane are connected by a transmission belt.
[0009] Preferably, the disk body is provided with a frame, and the frame is provided with a support plate I for fixing the motor and a support plate II for fixing the hydraulic rod, and the mounting plate is fixedly connected to the frame.
[0010] Preferably, the strip plate I and strip plate II are arranged in parallel, and the square rod and the rotating shaft are arranged coaxially.
[0011] Preferably, the two ends of the shaped frame are fixedly connected to the bottom wall of the disc body, and the rotating shaft is suspended in the opening of the shaped frame.
[0012] Preferably, the limiting mechanism includes a rectangular frame, with electric push rods for driving the rectangular frame provided at both ends of the strip plate I. A C-shaped seat of a suitable size is provided in the opening of the rectangular frame, and a pulley block is provided in the opening of the C-shaped seat. A screw rod that passes through a screw hole on the side wall of the rectangular frame is fixed to the back of the C-shaped seat through a bearing III. The screw rod is screwed to the screw hole, and a handle is provided at the end of the screw rod.
[0013] The beneficial effects of the present invention are as follows: The present invention drives strip plate I and strip plate II to rotate in the same direction and at the same speed through a driving mechanism, thereby adjusting the orientation and position of the PCB board, so that people can spray different end faces of the PCB board at the same position. At the same time, the limiting mechanism improves the stability of the PCB board, and the limiting mechanism that can move up and down will not affect the spraying of the PCB board. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of the present invention;
[0015] Figure 2 This is a cross-sectional view of the lifting mechanism in this invention.
[0016] In the diagram: 1. Disc body, 2. C-shaped frame, 3. Strip plate I, 4. Limiting mechanism, 41. Rectangular frame, 42. Electric push rod, 43. C-shaped seat, 44. Roller assembly, 45. Screw, 5. Strip plate II, 6. Rotating shaft, 7. Lifting mechanism, 71. Hydraulic rod, 72. Base, 73. Bearing I, 74. Square rod, 75. Square tube, 76. Bearing II, 77. Mounting plate, 8. Rotating mechanism, 81. Motor, 82. Vertical rod, 83. Pulley, 84. Transmission belt, 9. Frame, 10. Support plate I, 11. Support plate II. Detailed Implementation
[0017] The technical solution of the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings.
[0018] An assembly for PCB board spraying includes a tray 1, a U-shaped frame 2 is disposed inside the tray 1, the two ends of the U-shaped frame 2 are fixedly connected to the inner bottom wall of the tray 1, a strip plate I3, a limiting mechanism 4 and a strip plate II5 are arranged sequentially above the U-shaped frame 2, a rotating shaft 6 is disposed on the strip plate I3 and passes through the U-shaped frame 2, the rotating shaft 6 is suspended in the opening of the U-shaped frame 2, the strip plate II5 is driven by a lifting mechanism 7, and the rotating shaft 6 and the lifting mechanism 7 are driven by a rotating mechanism 8.
[0019] The lifting mechanism 7 includes a hydraulic rod 71, a base 72 is provided at the bottom end of the hydraulic rod 71, a square rod 74 connected to the strip plate II5 is fixed to the base 72 by bearing I73, a square tube 75 adapted to the square rod 74 is sleeved on the square rod 74, and the square tube 75 is fixed to the mounting plate 77 by bearing II76.
[0020] The rotating mechanism 8 includes a vertical rod 82 driven by a motor 81. The upper and lower ends of the vertical rod 82 are equipped with pulleys 83 on the corresponding rotating shaft 6 and square tube 75. The two sets of pulleys 83 on the same horizontal plane are connected by a transmission belt 84.
[0021] like Figure 1 As shown, a frame 9 is provided on the disc body 1, and a support plate I10 for fixing the motor 81 and a support plate II11 for fixing the hydraulic rod 71 are provided on the frame 9. The mounting plate 77 is fixedly connected to the frame 9.
[0022] In this embodiment, the strip plate I3 and strip plate II5 are arranged in parallel, and the square rod 74 and the rotating shaft 6 are arranged coaxially.
[0023] The limiting mechanism 4 includes a rectangular frame 41. Electric push rods 42 for driving the rectangular frame 41 are provided at both ends of the strip plate I3. A U-shaped seat 43 of a suitable size is provided in the opening of the rectangular frame 41. A pulley group 44 is provided in the opening of the U-shaped seat 43. A screw 45 that passes through a screw hole on the side wall of the rectangular frame 41 is fixed to the back of the U-shaped seat 43 through a bearing III. The screw 45 is screwed to the screw hole. A handle is provided at the end of the screw 45.
[0024] Working principle: During use, the electric push rod 42 drives the rectangular frame 41 to the top surface of the strip plate I3. At this time, the PCB board is inserted through the opening of the rectangular frame 41 and pressed tightly against the top surface of the strip plate I3. Simultaneously, the two ends of the PCB board are aligned with the grooves of the roller assembly 44. The hydraulic rod 71 drives the strip plate II5 downward through the drive base 72, bearing I73, and square rod 74, so that the strip plate II5 contacts the top of the PCB board, thereby pressing and fixing the PCB board onto the strip plate I3 through the strip plate II5. During the above process, the pull of the transmission belt 84 and pulley 83 helps to fix the square tube 75, preventing it from slipping. The square tube 75 rotates within the bearing II 76, while the fixed square tube 75 abuts against the outer wall of the square rod 74 through its inner wall of the opening, preventing the square rod 74 from rotating within the bearing I 73 during its up-and-down movement. This fixes the square rod 74 during its up-and-down movement to prevent it from driving the strip plate II 5 to rotate, thus preventing the downward-moving strip plate II 5 from not properly adhering to the top surface of the PCB board for compression and fixation. Similarly, the drive belt 84 and pulley 83 pull the rotating shaft 6 to fix it, preventing the strip plate I 3 from rotating when the PCB board is installed.
[0025] Next, the positions of the C-shaped base 43 and the pulley assembly 44 are adjusted according to the width of the PCB board. By rotating the screw 45 in the screw hole, its end rotates in the bearing III inside the C-shaped base 43, thereby driving the C-shaped base 43 to move the pulley assembly 44. At this time, the side wall of the rectangular frame 41 abuts against the C-shaped base 43 to prevent it from rotating together with the screw 45, so that the C-shaped base 43 only moves horizontally within the opening of the rectangular frame 41, while the grooves in the moving pulley assembly 44 are engaged with both ends of the PCB board. Then, the electric push rod 42 drives the rectangular frame 41 to move upward, wherein the rectangular frame 4... 1. The groove of the pulley group 44 driven by the C-shaped seat 43 rolls on both ends of the PCB board to move to the designated position, thereby facilitating its up and down movement. At the same time, the rectangular frame 41, the C-shaped seat 43 and the pulley group 44 that clamps and fixes both ends of the PCB board can effectively improve the stability of the PCB board and prevent it from tilting or tipping over during subsequent processing. When the above components move up and down on the PCB board, the PCB board is pressed and fixed by the strip plate I3 and the strip plate II5, so that the limiting mechanism 4 will not drive the PCB board to move up or down when it moves up and down.
[0026] When spraying the end face of the PCB board, the electric push rod 42 can drive the rectangular frame 41, the shaped seat 43 and the pulley group 44 to move, so that their positions are staggered from the spraying area of the PCB board, preventing them from affecting the spraying of the PCB board, and at the same time, it can also play a positive role in improving the stability of the PCB board.
[0027] When different ends of the PCB board need to be sprayed, the motor 81 drives the vertical rod 82 and the pulley 83 on the rod to rotate. At this time, the pulley 83 on the vertical rod 82 drives the square tube 75 and the pulley 73 on the rotating shaft 6 to rotate through the transmission belt 84. Then, the rotating shaft 6 drives the strip plate I3 and the limiting mechanism 4 to rotate. While the square tube 75 rotates in the bearing II 76, it will drive the square rod 74 to rotate in the bearing I 73. At this time, it will not drive the base 72 and the hydraulic rod 71 to rotate together. The bottom end of the square rod 74 will... The drive mechanism 8 drives the strip plate II5 to rotate, thereby indirectly driving the strip plate I3 and the strip plate II5 to rotate in the same direction and at the same speed. This adjusts the orientation of the PCB board, allowing spraying work to be performed on different ends of the PCB board from the same position. During the above process, the hydraulic rod 71 and the base 72 do not affect the rotation of the square rod 74 and the strip plate II5. Furthermore, since the limiting mechanism 4 rotates together with the strip plate I3, it does not affect the rotation of the strip plate I3 and the PCB board.
[0028] The present invention has been described in detail above, but the content described is only a preferred embodiment of the present invention and should not be considered as limiting the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the patent coverage of the present invention.
Claims
1. A component for PCB board spraying, comprising a disk body, characterized in that: The disc body is provided with a U-shaped frame, and strip plate I, a limiting mechanism and strip plate II are arranged in sequence above the U-shaped frame. A rotating shaft is provided on strip plate I that passes through the U-shaped frame. Strip plate II is driven by a lifting mechanism. The rotating shaft and the lifting mechanism are driven by a rotation mechanism. The lifting mechanism includes a hydraulic rod, the bottom end of which is provided with a base. A square rod connected to a strip plate II is fixed to the base via a bearing I. A square tube is sleeved on the square rod, and the square tube is fixed to the mounting plate via a bearing II. The rotating mechanism includes a vertical rod driven by a motor. The upper and lower ends of the vertical rod are equipped with pulleys on the corresponding rotating shaft and square tube. The two sets of pulleys on the same horizontal plane are connected by a transmission belt.
2. The component for PCB board spraying according to claim 1, characterized in that: The disk body is provided with a frame, and the frame is provided with a support plate I for fixing the motor and a support plate II for fixing the hydraulic rod. The mounting plate is fixedly connected to the frame.
3. The component for PCB board spraying according to claim 1, characterized in that: The strip plate I and strip plate II are arranged in parallel, and the square rod and the rotating shaft are arranged coaxially.
4. The component for PCB board spraying according to claim 1, characterized in that: The two ends of the shaped frame are fixedly connected to the bottom wall of the disc body, and the rotating shaft is suspended in the opening of the shaped frame.
5. The component for PCB board spraying according to claim 1, characterized in that: The limiting mechanism includes a rectangular frame. Electric push rods for driving the rectangular frame are provided at both ends of the strip plate I. A C-shaped seat of a suitable size is provided in the opening of the rectangular frame. A pulley block is provided in the opening of the C-shaped seat. A screw rod that passes through a screw hole on the side wall of the rectangular frame is fixed to the back of the C-shaped seat through a bearing III. The screw rod is screwed to the screw hole. A handle is provided at the end of the screw rod.
Citation Information
Patent Citations
PCB spraying clamp
CN220697165U