Printed circuit board solder mask plug device

Abstract

The utility model discloses a printed circuit board solder mask hole plugging device relates to the technical field of equipment or method for manufacturing printed circuit, this printed circuit board solder mask hole plugging device, including the casing, the casing is used for printed circuit board solder mask hole plugging device, and the inside fixed connection of casing has two columnar body, two columnar body are all hollow structure, and the inside sliding connection of two columnar bodies has the sliding column, and the lower surface fixed connection of two sliding columns has clamping piece, and the inside mounting of two clamping pieces has the hole aluminum sheet board, wherein, the inside fixed connection of casing has telescopic movement link, and spring can compress and provide the compression force, avoid its compression force deficiency and lead to the damage of circuit that the ink penetrates to circuit board surface leads to, and the compression force is not only influenced by the hole aluminum sheet board position while the hole aluminum sheet board downward motion sticks to the circuit board of different thickness to guarantee that the device can provide the compression force for the circuit board of different thickness.

Description

Technical Field

[0001] This utility model relates to the technical field of equipment or methods for manufacturing printed circuits, and in particular to a solder mask plugging device for printed circuit boards. Background Technology

[0002] In the process of printing circuit boards, there are many vias. Some vias are smaller than 0.3mm, which can be completely filled during printing. If the vias are larger, around 0.45-0.6mm, ink may seep in and not be completely filled. Therefore, an aluminum stencil is used separately, the vias that need to be filled are drilled, and then the ink is brushed again until it is full, opaque, and completely filled. Chinese utility model patent, authorized announcement number "CN204046961U", discloses a device for filling vias with yellow solder resist ink on circuit boards. The device includes a venting pad on the base, a circuit board placed on the venting pad, a via-filling stencil printing plate on the circuit board, a via-filling scraper above the via-filling stencil printing plate, and an air extraction device that moves synchronously with the via-filling scraper below the venting pad.

[0003] The above technical solution uses a hole-filling mesh printing plate, which is placed on the printed circuit board by its own weight to fill the holes. However, due to insufficient clamping force between the hole-filling mesh printing plate and the printed circuit board, gaps exist between them. As a result, when applying ink, the ink seeps onto the surface of the circuit board, leading to the failure of the circuit. Utility Model Content

[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a solder mask plugging device for printed circuit boards, which can solve the problem of equipment or methods used to manufacture printed circuits.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a solder mask plugging device for printed circuit boards, comprising a housing, wherein the housing is used for solder mask plugging device for printed circuit boards, and two columnar bodies are fixedly connected inside the housing, both columnar bodies are hollow structures, and sliding columns are slidably connected inside the two columnar bodies, and clamping members are fixedly connected to the lower surfaces of the two sliding columns, and perforated aluminum sheets are installed inside the two clamping members. The shell contains a telescopic moving rod that is fixedly connected inside. The surface of the telescopic moving rod extends through the upper surface of the shell, and the lower surface of the telescopic moving rod is fixedly connected to a nozzle brush.

[0006] Preferably, a booster pump is fixedly connected to the upper surface of the telescopic moving rod, and a delivery pipe is fixedly connected to the upper surface of the booster pump.

[0007] Preferably, an ink tank is fixedly connected to the end of the delivery pipe away from the booster pump, and an ink inlet pipe is fixedly connected to the upper surface of the ink tank.

[0008] Preferably, a support member is fixedly connected inside the housing; Both sliding columns have buffer blocks slidably connected to their surfaces.

[0009] Preferably, springs are fixedly connected to the lower surfaces of both buffer blocks, and the ends of the two springs away from the corresponding buffer blocks are fixedly connected to the upper surfaces of the corresponding clamping members. Motors are fixedly connected to the surfaces of both cylindrical bodies.

[0010] Preferably, springs are fixedly connected to the lower surfaces of both buffer blocks, and the ends of the two springs away from the corresponding buffer blocks are fixedly connected to the upper surfaces of the corresponding clamping members. Motors are fixedly connected to the surfaces of both cylindrical bodies.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. This printed circuit board solder mask plugging device uses two clamping components to move an aluminum sheet with holes downwards. Because its springs can compress and provide clamping force, insufficient clamping force prevents ink from seeping onto the circuit board surface and causing circuit damage. After the aluminum sheet with holes contacts the circuit board, the clamping components and buffer blocks move relative to each other, causing the springs to compress and provide clamping force. Therefore, the clamping force is not affected by the position of the aluminum sheet with holes, and the downward movement of the aluminum sheet with holes adheres to circuit boards of different thicknesses, ensuring that the device can provide clamping force for circuit boards of different thicknesses, thus ensuring the integrity of the circuit board during the plugging process.

[0012] 2. This printed circuit board solder mask plugging device, by setting two clamping positions, ensures that the aluminum sheet with holes held by the clamping members is large enough to completely cover the circuit board, avoiding the phenomenon that the vias on the circuit board cannot be plugged, thereby ensuring that all vias on the circuit board can be plugged. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the interior of the casing of this utility model; Figure 3 This is a schematic diagram showing the connection relationship between the first connecting rod, the motor, and the second connecting rod of this utility model; Figure 4 This is a schematic diagram showing the connection between the interior of the columnar body and the sliding column of this utility model.

[0014] Reference numerals: 1. Booster pump; 2. Delivery pipe; 3. Ink inlet pipe; 4. Ink barrel; 5. Housing; 6. Columnar body; 7. First connecting rod; 8. Motor; 9. Second connecting rod; 10. Sliding column; 11. Buffer block; 12. Spring; 13. Clamping component; 14. Support component; 15. Perforated aluminum plate; 16. Printhead brush; 17. Telescopic moving rod. Detailed Implementation

[0015] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0016] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0017] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0018] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0019] Please see Figure 1-4 This utility model provides a technical solution: a solder mask plugging device for printed circuit boards, including a housing 5. The housing 5 is used for solder mask plugging device for printed circuit boards. Two columnar bodies 6 are fixedly connected inside the housing 5. Both columnar bodies 6 are hollow structures. Sliding columns 10 are slidably connected inside the two columnar bodies 6. Clamping members 13 are fixedly connected to the lower surface of the two sliding columns 10. Hole-filled aluminum plates 15 are installed inside the two clamping members 13. The housing 5 has a telescopic moving rod 17 fixedly connected inside, the surface of the telescopic moving rod 17 penetrates the upper surface of the housing 5, and the lower surface of the telescopic moving rod 17 is fixedly connected to the nozzle brush 16.

[0020] A booster pump 1 is fixedly connected to the upper surface of the telescopic moving rod 17, and a delivery pipe 2 is fixedly connected to the upper surface of the booster pump 1.

[0021] An ink tank 4 is fixedly connected to the end of the delivery pipe 2 away from the booster pump 1, and an ink inlet pipe 3 is fixedly connected to the upper surface of the ink tank 4.

[0022] The housing 5 is internally fixedly connected to a support member 14; Both sliding columns 10 have buffer blocks 11 slidably connected to their surfaces.

[0023] Springs 12 are fixedly connected to the lower surfaces of the two buffer blocks 11, and the ends of the two springs 12 away from the corresponding buffer blocks 11 are fixedly connected to the upper surfaces of the corresponding clamping parts 13. Among them, motors 8 are fixedly connected to the surfaces of the two columnar bodies 6.

[0024] The output ends of the two motors 8 are fixedly sleeved with the first connecting rod 7, and the surfaces of the two first connecting rods 7 are rotatably connected with the second connecting rod 9. The ends of the two second connecting rods 9 away from the corresponding first connecting rods 7 are rotatably connected to the surface of the corresponding buffer block 11.

[0025] When the perforated aluminum sheet 15 needs to be pressed onto the circuit board on the surface of the support member 14, two motors 8 are started by an external power source. The start of the two motors 8 drives the corresponding first connecting rod 7 to rotate. The rotation of the two first connecting rods 7 drives the corresponding second connecting rod 9 to move. The movement of the two second connecting rods 9 drives the corresponding buffer block 11 to move downward. The downward movement of the two buffer blocks 11 drives the corresponding spring 12 to move. The movement of the two springs 12 drives the corresponding clamping member 13 to move downward. The downward movement of the two clamping members 13 drives the corresponding sliding column 10 to move downward. After the downward movement of the two clamping members 13 drives the perforated aluminum sheet 15 to move downward onto the circuit board on the upper surface of the support member 14, the two motors 8 continue to drive the corresponding first connecting rod 7 to rotate. The rotation of the two first connecting rods 7 drives the corresponding second connecting rod 9 to move. The movement of the two second connecting rods 9 drives the corresponding buffer block 11 to continue to move downward. The downward movement of the two buffer blocks 11 compresses the corresponding spring 12.

[0026] When inkjet nozzle plugging is required, the booster pump 1 is started by an external power source. The start of the booster pump 1 causes the ink inside the ink tank 4 to enter the interior of the telescopic moving rod 17 through the delivery pipe 2, and then be sprayed out through the printhead brush 16. At the same time, the telescopic moving rod 17 is started by an external power source, which drives the printhead brush 16 to move to the position where the nozzle needs to be plugged.

[0027] By setting two clamping members 13, the perforated aluminum sheet 15 is driven to move downward. Since its spring 12 can be compressed to provide clamping force, it avoids the ink from penetrating to the circuit board surface and causing circuit damage due to insufficient clamping force. After the perforated aluminum sheet 15 contacts the circuit board, the clamping members 13 and the buffer block 11 move relative to each other, driving the spring 12 to compress and provide clamping force. Therefore, the clamping force is not affected by the position of the perforated aluminum sheet 15. At the same time, the perforated aluminum sheet 15 moves downward to fit the circuit board of different thicknesses, thereby ensuring that the device can provide clamping force for circuit boards of different thicknesses, thus ensuring the integrity of the circuit board during the hole plugging process.

[0028] By setting two clamping positions 13, the perforated aluminum sheet 15 held by the clamping members 13 is ensured to be large enough to completely cover the circuit board, avoiding the phenomenon that the vias on the circuit board cannot be plugged, thus ensuring that all vias on the circuit board can be plugged.

[0029] Working principle: When the perforated aluminum sheet 15 needs to be pressed onto the circuit board on the surface of the support 14, two motors 8 are started by an external power source. The start of the two motors 8 drives the corresponding first connecting rod 7 to rotate. The rotation of the two first connecting rods 7 drives the corresponding second connecting rod 9 to move. The movement of the two second connecting rods 9 drives the corresponding buffer block 11 to move downward. The downward movement of the two buffer blocks 11 drives the corresponding spring 12 to move. The movement of the two springs 12 drives the corresponding clamping member 13 to move downward. The downward movement of the two clamping members 13 drives the corresponding sliding column 10 to move downward. After the downward movement of the two clamping members 13 drives the perforated aluminum sheet 15 to move downward onto the circuit board on the upper surface of the support 14, the two motors 8 continue to drive the corresponding first connecting rod 7 to rotate. The rotation of the two first connecting rods 7 drives the corresponding second connecting rod 9 to move. The movement of the two second connecting rods 9 drives the corresponding buffer block 11 to continue to move downward. The downward movement of the two buffer blocks 11 compresses the corresponding spring 12.

[0030] When inkjet nozzle plugging is required, the booster pump 1 is started by an external power source. The start of the booster pump 1 causes the ink inside the ink tank 4 to enter the interior of the telescopic moving rod 17 through the delivery pipe 2, and then be sprayed out through the printhead brush 16. At the same time, the telescopic moving rod 17 is started by an external power source, which drives the printhead brush 16 to move to the position where the nozzle needs to be plugged.

[0031] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A solder mask plugging device for printed circuit boards, comprising a housing (5), characterized in that: The housing (5) is used for the solder mask plugging device for printed circuit boards. Two columnar bodies (6) are fixedly connected inside the housing (5). Both columnar bodies (6) are hollow structures. Sliding columns (10) are slidably connected inside the two columnar bodies (6). Clamping parts (13) are fixedly connected to the lower surfaces of the two sliding columns (10). Hollow aluminum plates (15) are installed inside the two clamping parts (13). The shell (5) is fixedly connected to a telescopic moving rod (17), the surface of which penetrates the upper surface of the shell (5), and the lower surface of the telescopic moving rod (17) is fixedly connected to a nozzle brush (16).

2. The solder mask plugging device for printed circuit boards according to claim 1, characterized in that: A booster pump (1) is fixedly connected to the upper surface of the telescopic moving rod (17), and a delivery pipe (2) is fixedly connected to the upper surface of the booster pump (1).

3. The solder mask plugging device for printed circuit boards according to claim 2, characterized in that: The end of the delivery pipe (2) away from the booster pump (1) is fixedly connected to an ink tank (4), and an ink inlet pipe (3) is fixedly connected to the upper surface of the ink tank (4).

4. The solder mask plugging device for printed circuit boards according to claim 1, characterized in that: The housing (5) is fixedly connected to a support member (14). Among them, the surfaces of the two sliding columns (10) are slidably connected with buffer blocks (11).

5. A solder mask plugging device for printed circuit boards according to claim 4, characterized in that: Springs (12) are fixedly connected to the lower surfaces of the two buffer blocks (11), and the ends of the two springs (12) away from the corresponding buffer blocks (11) are fixedly connected to the upper surfaces of the corresponding clamping members (13). Among them, motors (8) are fixedly connected to the surfaces of the two columnar bodies (6).

6. The solder mask plugging device for printed circuit boards according to claim 5, characterized in that: The output ends of the two motors (8) are fixedly sleeved with first connecting rods (7), and the surfaces of the two first connecting rods (7) are rotatably connected with second connecting rods (9). The ends of the two second connecting rods (9) away from the corresponding first connecting rods (7) are rotatably connected to the surface of the corresponding buffer block (11).

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