Multifunctional printed board three-proofing coating shielding device
By designing a multifunctional conformal coating masking device for printed circuit boards, and using a threaded handle and sliding groove structure to adjust the masking plate, the problem of low applicability of existing devices is solved. This enables flexible adjustment and fixation of the coating position on the printed circuit board, thereby improving the coating quality and stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-19
- Publication Date
- 2026-03-31
AI Technical Summary
Existing conformal coating masking devices for printed circuit boards can only coat and mask one type of printed circuit board, and cannot adapt to the different coating requirements of printed circuit boards of different specifications and models, resulting in low applicability.
A multifunctional conformal coating masking device for printed circuit boards was designed, comprising a height adjustment mechanism, a fixing and placement mechanism, and a coating and masking mechanism. The masking plate can be flexibly adjusted through a threaded handle and a sliding groove structure, and the printed circuit board is fixed with an anti-slip soft pad layer to ensure the accuracy and stability of the coating position.
It enables flexible adjustment of the coating position according to different needs of printed circuit boards, ensuring coating quality, preventing printed circuit board displacement, and improving the practicality of the device and coating effect.
Smart Images
Figure CN224057910U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of printed circuit board masking coating technology, and more specifically to a multifunctional printed circuit board conformal coating masking device. Background Technology
[0002] With the development of microelectronics technology and related assembly technologies, modern electronic devices are increasingly becoming highly integrated systems formed by high-density assembly and micro-assembly. As environmental factors have an increasing impact on PCBAs, such as external moisture, condensation, salt spray, and corrosive gases, they may cause defects or failures such as electrochemical migration, leakage, and short circuits in printed circuit board components. In order to improve the reliability of printed circuit board components, it is necessary to protect them with conformal coating, that is, to coat the surface of the printed circuit board components with conformal coating. Some areas of the printed circuit board components need to be covered by conformal coating, while other areas need to be protected from being coated with conformal coating. Therefore, a coating masking device is needed. Its main function is to coat a protective coating on specific areas of the printed circuit board to protect the printed circuit board from environmental influences during use.
[0003] Since different specifications and models of printed circuit boards require different coating areas, and existing PCB conformal coating masking devices can only coat and mask one type of PCB, they cannot coat and mask different PCBs with different coating requirements, resulting in low applicability. Therefore, we propose a multifunctional PCB conformal coating masking device to solve the above problems. Utility Model Content
[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a multifunctional conformal coating masking device for printed circuit boards to solve the problems existing in the background art.
[0005] This utility model provides the following technical solution: a multifunctional three-proof coating masking device for printed circuit boards, including a base plate, a height adjustment mechanism on one side of the top of the base plate, a fixed placement mechanism on the top side of the base plate near the height adjustment mechanism, a coating masking mechanism on one side of the height adjustment mechanism, the coating masking mechanism including a masking plate, a coating opening in the middle of the top of the masking plate, a second moving groove on one inner wall of the masking plate, a second sliding groove on the other inner wall of the masking plate, second threaded handles symmetrically arranged on both sides of the masking plate near the height adjustment mechanism, a stop block fixedly connected to the masking plate in the middle of the second moving groove, a second moving block threadedly connected to one end of the second threaded handle extending through one side of the masking plate into the second moving groove, and a moving shielding plate fixedly connected to the side of the second moving block away from the second moving groove.
[0006] Preferably, one end of the second threaded throttle passing through the shield plate is connected to the stop block bearing, and a second slider is fixedly connected to the side of the movable shield plate away from the second movable block. The second slider and the second slide groove form a sliding connection structure.
[0007] Preferably, the height adjustment mechanism includes a side plate fixedly connected to one side of the top of the base plate. A first moving groove is provided in the middle of the side plate near the fixed placement mechanism. A first threaded handle is provided in the middle of the top of the side plate. A first moving block is threadedly connected to one end of the first threaded handle that extends through the side plate into the first moving groove. One side of the first moving block is fixedly connected to the middle of one side of the shielding plate. The bottom end of the first threaded handle is connected to the side plate bearing.
[0008] Preferably, the side plate has first sliding grooves symmetrically opened at both ends on one side of the first moving groove, and a first slider is slidably connected to the top of the inner wall of the first sliding groove, and one side of the first slider is fixedly connected to one side of the shielding plate.
[0009] Preferably, the fixed placement mechanism includes a printed circuit board support pad fixedly connected to the top of the base plate. The top of the printed circuit board support pad has a placement groove. A printed circuit board is provided on one side of the top of the printed circuit board support pad. A pull rod is provided in the middle of one side of the printed circuit board support pad. A clamping plate is fixedly connected to one end of the pull rod that extends through the printed circuit board support pad into the placement groove. A spring is sleeved on one end of the pull rod located in the placement groove. An anti-slip soft pad layer is fixedly connected to the side of the clamping plate away from the spring.
[0010] Preferably, the printed circuit board support pad has symmetrical sliding grooves on both sides of the bottom of the placement groove, and the pressing plate has symmetrical sliding blocks fixedly connected to both sides of the bottom, and the sliding blocks and the sliding grooves form a sliding connection structure.
[0011] The technical effects and advantages of this utility model are as follows:
[0012] 1. When using this utility model, if different positions on different printed circuit boards need to be coated, the masking position needs to be adjusted according to the different coating requirements of the printed circuit board. By rotating the second threaded handle, the second threaded handle drives the second moving block to move outward along the second moving groove, thereby driving the moving masking plate to move outward, which facilitates flexible adjustment of the opening size of the coating port, thus facilitating flexible adjustment of the coating position of the printed circuit board as needed. Subsequently, by rotating the first threaded handle, the first threaded handle drives the first moving block to move down along the first moving groove, thereby driving the coating masking mechanism to move down to the top of the fixed placement mechanism, thus facilitating the coating operation of the printed circuit board. The operation is convenient and improves the practicality of the device.
[0013] 2. In use, by pulling the lever outward, the lever moves the clamping plate outward to compress the spring. Then, the printed circuit board is placed in the placement groove on the top of the printed circuit board support pad. Next, the lever is released, and under the rebound of the spring, the clamping plate is pushed towards the printed circuit board, thereby pressing and fixing the printed circuit board. The anti-slip soft pad layer makes the clamping of the printed circuit board more secure, effectively preventing the printed circuit board from shifting during coating and improving the coating quality. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0015] Figure 2 This is a schematic diagram of the height adjustment mechanism of this utility model.
[0016] Figure 3 This is a cross-sectional structural diagram of the fixing and placement mechanism of this utility model.
[0017] Figure 4 This is a cross-sectional schematic diagram of the coating and masking mechanism of this utility model.
[0018] The attached figures are labeled as follows: 1. Base plate; 2. Fixed placement mechanism; 21. Printed circuit board support pad; 22. Placement groove; 23. Sliding groove; 24. Pull rod; 25. Spring; 26. Pressure plate; 27. Sliding block; 28. Anti-slip soft pad layer; 3. Printed circuit board; 4. Height adjustment mechanism; 41. Side plate; 42. First sliding groove; 43. First slider; 44. First threaded handle; 45. First moving groove; 46. First moving block; 5. Coating masking mechanism; 51. Masking plate; 52. Second moving groove; 53. Second sliding groove; 54. Second threaded handle; 55. Second moving block; 56. Stop block; 57. Moving masking plate; 58. Second slider; 59. Coating port. Detailed Implementation
[0019] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The multifunctional printed circuit board conformal coating masking device involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0020] This utility model provides a multifunctional conformal coating masking device for printed circuit boards. Please refer to [link / reference]. Figure 1-4As shown, the system includes a base plate 1. A height adjustment mechanism 4 is provided on one side of the top of the base plate 1. A fixing mechanism 2 is provided on the top side of the base plate 1 near the height adjustment mechanism 4. A coating and masking mechanism 5 is provided on one side of the height adjustment mechanism 4. The coating and masking mechanism 5 includes a masking plate 51. A coating opening 59 is provided in the middle of the top of the masking plate 51. A second moving groove 52 is provided on the inner wall of one side of the masking plate 51. A second sliding groove 53 is provided on the inner wall of the other side of the masking plate 51. Second threaded handles 54 are symmetrically arranged on both sides of the masking plate 51 near the height adjustment mechanism 4. A stop block 56 is fixedly connected to the plate 51 in the middle of the second moving groove 52. A second threaded handle 54 extends through one side of the shielding plate 51 into the interior of the second moving groove 52 and is threadedly connected to a second moving block 55. A moving shielding plate 57 is fixedly connected to the side of the second moving block 55 away from the second moving groove 52. One end of the second threaded handle 54 passes through the shielding plate 51 and is bearing-connected to the stop block 56. A second slider 58 is fixedly connected to the side of the moving shielding plate 57 away from the second moving block 55. The second slider 58 and the second sliding groove 53 form a sliding connection structure.
[0021] In this embodiment, during use, pulling the lever 24 outward causes the clamping plate 26 to move outward, compressing the spring 25. The printed circuit board 3 is then placed in the placement groove 22 on top of the printed circuit board support pad 21. Next, releasing the lever 24 causes the clamping plate 26 to move towards the printed circuit board 3 under the rebound of the spring 25, thus clamping and fixing the printed circuit board 3. The anti-slip soft pad layer 28 further strengthens the clamping of the printed circuit board 3, effectively preventing displacement during coating and improving coating quality. When different positions on different printed circuit boards 3 need to be coated, the coating method must be adjusted according to the specific requirements of the printed circuit board. The masking position of the printed circuit board 3 can be adjusted according to different coating requirements. By rotating the second threaded handle 54, the second threaded handle 54 drives the second moving block 55 to move outward along the second moving groove 52, thereby driving the moving shielding plate 57 to move outward, which facilitates the flexible adjustment of the opening size of the coating port 59, thus facilitating the flexible adjustment of the coating position of the printed circuit board 3 as needed. Subsequently, by rotating the first threaded handle 44, the first threaded handle 44 drives the first moving block 46 to move downward along the first moving groove 45, thereby driving the coating masking mechanism 5 to move downward to the top of the fixed placement mechanism 2, thus facilitating the coating operation of the printed circuit board 3.
[0022] Furthermore, the height adjustment mechanism 4 includes a side plate 41 fixedly connected to the top side of the base plate 1. A first moving groove 45 is provided in the middle of the side plate 41 near the fixed placement mechanism 2. A first threaded handle 44 is provided in the middle of the top of the side plate 41. One end of the first threaded handle 44, which extends through the side plate 41 into the first moving groove 45, is threadedly connected to a first moving block 46. One side of the first moving block 46 is fixedly connected to the middle of one side of the shielding plate 51. The bottom end of the first threaded handle 44 is connected to the side plate 41 by a bearing. The side plate 41 is provided with first sliding grooves 42 symmetrically at both ends on one side of the first moving groove 45. A first slider 43 is slidably connected to the top of the inner wall of the first sliding groove 42. One side of the first slider 43 is fixedly connected to one side of the shielding plate 51. In use, by rotating the first threaded handle 44, the first threaded handle 44 drives the first moving block 46 to move down along the first moving groove 45, thereby driving the coating shielding mechanism 5 to move down to the top of the fixed placement mechanism 2, thus facilitating the coating operation of the printed circuit board 3.
[0023] Furthermore, the fixed placement mechanism 2 includes a printed circuit board support pad 21 fixedly connected to the top of the base plate 1. The top of the printed circuit board support pad 21 has a placement groove 22. A printed circuit board 3 is disposed on one side of the top of the printed circuit board support pad 21. A pull rod 24 is disposed in the middle of one side of the printed circuit board support pad 21. A clamping plate 26 is fixedly connected to one end of the pull rod 24 that extends through the printed circuit board support pad 21 into the placement groove 22. A spring 25 is sleeved on one end of the pull rod 24 located in the placement groove 22. An anti-slip soft pad layer 28 is fixedly connected to the side of the clamping plate 26 away from the spring 25. Sliding grooves are symmetrically formed on both sides of the bottom of the printed circuit board support pad 21 in the placement groove 22. 23. Sliding blocks 27 are symmetrically fixedly connected to both sides of the bottom of the clamping plate 26. The sliding blocks 27 and the sliding groove 23 form a sliding connection structure. In use, the pull rod 24 is pulled outward, and the pull rod 24 drives the clamping plate 26 to move outward to compress the spring 25. Then, the printed circuit board 3 is placed in the placement groove 22 on the top of the printed circuit board support pad 21. Then, the pull rod 24 is released. Under the rebound action of the spring 25, the clamping plate 26 will be pushed to move towards the printed circuit board 3, thereby clamping and fixing the printed circuit board 3. The anti-slip soft pad layer 28 makes the clamping of the printed circuit board 3 more secure, effectively preventing the printed circuit board 3 from shifting during coating and improving the coating quality.
[0024] The working principle of this utility model is as follows: When in use, pull the lever 24 outwards. The lever 24 moves the clamping plate 26 outwards, compressing the spring 25. Then, the printed circuit board 3 is placed in the placement groove 22 on top of the printed circuit board support pad 21. Next, release the lever 24. Under the rebound action of the spring 25, the clamping plate 26 is pushed towards the printed circuit board 3, thereby clamping and fixing the printed circuit board 3. The anti-slip soft pad layer 28 makes the clamping of the printed circuit board 3 more secure, effectively preventing the printed circuit board 3 from shifting during coating and improving the coating quality. When different positions of different printed circuit boards 3 need to be coated, it is necessary to... The masking position of the printed circuit board 3 can be adjusted according to different coating requirements. By rotating the second threaded handle 54, the second threaded handle 54 drives the second moving block 55 to move outward along the second moving groove 52, thereby driving the moving shielding plate 57 to move outward, which facilitates the flexible adjustment of the opening size of the coating port 59, thus facilitating the flexible adjustment of the coating position of the printed circuit board 3 as needed. Subsequently, by rotating the first threaded handle 44, the first threaded handle 44 drives the first moving block 46 to move downward along the first moving groove 45, thereby driving the coating masking mechanism 5 to move downward to the top of the fixed placement mechanism 2, thus facilitating the coating operation of the printed circuit board 3.
[0025] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.
[0026] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.
[0027] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A multi-functional printed board three-protection coating masking device comprising a base plate (1), characterized in that: The top side of the bottom plate (1) is provided with a height adjusting mechanism (4), the top side of the bottom plate (1) is provided with a fixed placement mechanism (2) near the height adjusting mechanism (4), one side of the height adjusting mechanism (4) is provided with a coating shielding mechanism (5), the coating shielding mechanism (5) comprises a shielding plate (51), a coating opening (59) is formed in the top middle of the shielding plate (51), a second moving groove (52) is formed in the inner wall of one side of the shielding plate (51), a second sliding groove (53) is formed in the inner wall of the other side of the shielding plate (51), and second threaded handles (54) are symmetrically arranged on both sides of the shielding plate (51) near the height adjusting mechanism (4). The middle of the second moving groove (52) is fixedly connected with a stop block (56), one end of the second threaded handle (54) extending through one side of the shielding plate (51) to the inside of the second moving groove (52) is threadedly connected with a second moving block (55), and the side, away from the second moving groove (52), of the second moving block (55) is fixedly connected with a moving shielding plate (57).
2. The multi-functional printed board three-protection coating masking device according to claim 1, characterized in that: One end of the second threaded handle (54) extending through the shielding plate (51) is in bearing connection with the stop block (56), the side, away from the second moving block (55), of the moving shielding plate (57) is fixedly connected with a second sliding block (58), and the second sliding block (58) and the second sliding groove (53) form a sliding connection structure.
3. The multi-functional printed board three-protection coating masking device according to claim 1, characterized in that: The height adjusting mechanism (4) comprises a side plate (41) fixedly connected to the top side of the bottom plate (1), a first moving groove (45) is formed in the middle of the side of the side plate (41) near the fixed placement mechanism (2), a first threaded handle (44) is arranged on the top middle of the side plate (41), one end of the first threaded handle (44) extending through the side plate (41) to the inside of the first moving groove (45) is threadedly connected with a first moving block (46), one side of the first moving block (46) is fixedly connected to the middle of one side of the shielding plate (51), and the bottom end of the first threaded handle (44) is in bearing connection with the side plate (41).
4. The multi-functional printed board three-protection coating masking device according to claim 3, characterized in that: First sliding grooves (42) are symmetrically formed in the sides of the side plate (41) at both ends of the first moving groove (45), first sliding blocks (43) are slidably connected to the inner wall top of the first sliding groove (42), and one side of the first sliding block (43) is fixedly connected to one side of the shielding plate (51).
5. The multi-functional printed board three-protection coating masking device according to claim 1, characterized in that: The fixed placement mechanism (2) comprises a printed board supporting base plate (21) fixedly connected to the top of the bottom plate (1), a placement groove (22) is formed in the top of the printed board supporting base plate (21), a printed board (3) is arranged on the top side of the printed board supporting base plate (21), a draw bar (24) is arranged on the middle of one side of the printed board supporting base plate (21), one end of the draw bar (24) extending through the printed board supporting base plate (21) to the inside of the placement groove (22) is fixedly connected with a pressing plate (26), a spring (25) is sleeved on one end of the draw bar (24) located in the placement groove (22), and the side, away from the spring (25), of the pressing plate (26) is fixedly connected with an antiskid soft cushion layer (28).
6. The multi-functional printed board three-protection coating masking device according to claim 5, characterized in that: The printed board support backing plate (21) is symmetrically provided with sliding grooves (23) at the bottom of the placing groove (22), and the pressing plate (26) is symmetrically fixedly connected with sliding blocks (27) at the bottom, and the sliding blocks (27) and the sliding grooves (23) form a sliding connection structure.