Efficient and stable hole plugging device for circuit board

The automated circuit board hole-filling device uses an injection molding machine and a threaded rod to drive the push plate to slide, achieving precise hole filling with resin. Combined with automatic conveying and template changing, it solves the problems of incomplete hole filling and high labor intensity, improving production efficiency and circuit board quality.

CN223843965UActive Publication Date: 2026-01-27JIANGXI KONA TECH CO LTD
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Patent Information

Application Number
CN202520148394.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-22
Publication Date
2026-01-27
Estimated Expiration
2035-01-22

AI Technical Summary

Technical Problem

In the existing technology, incomplete filling is easily caused when plugging holes in circuit boards, which may lead to quality problems and increase the labor intensity of workers.

Method used

An automated device including a plugging mechanism, a lifting mechanism, a mold changing mechanism, and a running mechanism is adopted. Resin is delivered through the injection molding machine, and the push plate is driven by a threaded rod to achieve precise plugging of the resin and collect excess material. Combined with automatic conveying and mold changing, it can adapt to different types of circuit boards.

Benefits of technology

It improves the accuracy and efficiency of via plugging, reduces material waste and manual labor intensity, ensures production consistency and flexibility, and enhances circuit board quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of circuit board processing, and discloses an efficient and stable hole plugging device for a circuit board, which comprises a hole plugging mechanism, a jacking mechanism, a die changing mechanism and an operating mechanism. The injection molding machine conveys resin in the storage tank to the pipeline through the pipeline I, the pipeline is communicated with the push plate at the same time, the circulation hole is formed in the push plate and is L-shaped, so that the resin flows out in the advancing direction of the push plate, and meanwhile, the threaded rod is fixed at the output end of the motor and is in threaded connection with the push plate; the push plate slides along the inner wall of the fixing plate, when the push plate moves, resin is pushed to move, the resin flows into the circuit board through holes in the surface of the hole plugging plate, hole plugging treatment is completed, meanwhile, redundant resin enters a collecting tank through a liquid outlet groove, and therefore material waste is reduced, production cost is reduced, and the production efficiency is improved through automatic hole plugging. The labor intensity of workers can be relieved, meanwhile, the hole plugging precision can be guaranteed, human errors are reduced, and therefore the production efficiency is improved.
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Description

Technical Field

[0001] This utility model relates to the field of circuit board processing technology, and in particular to a highly efficient and stable hole-plugging device for circuit boards. Background Technology

[0002] A circuit board via plugging device is a tool used to seal or fill holes on a circuit board. It is typically used to process unwanted or obsolete holes on a circuit board to ensure the board's structure, function, and subsequent processing requirements. This process is also called "via plugging" or "hole filling," and it is used to prevent unnecessary electrical connections or physical interference during other parts of the circuit board manufacturing process.

[0003] In existing technologies, when filling holes in circuit boards, a manual scraper may be used to allow resin to enter the circuit board. This may result in incomplete filling of the holes, which may cause quality problems and may also increase the labor intensity of workers. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a circuit board high-efficiency and stable via plugging device.

[0005] This utility model is achieved by the following technical solution: a circuit board high-efficiency and stable via plugging device, including a via plugging mechanism, a lifting mechanism, a mold changing mechanism and a running mechanism, wherein the mold changing mechanism is located inside the via plugging mechanism, the lifting mechanism is located at the bottom of the via plugging mechanism, and the via plugging mechanism is located on the front of the via plugging mechanism;

[0006] The plugging mechanism includes a fixed plate with a liquid outlet groove at its top. A liquid outlet pipe is connected to the liquid outlet groove. A collection tank is connected to the end of the liquid outlet pipe away from the liquid outlet groove. A fixed plate is fixedly connected to the bottom of the collection tank. A push plate is slidably connected to the inner wall of the fixed plate. A flow hole is opened inside the push plate. A pipe is connected to the top of the flow hole. An injection machine is connected to the end of the pipe away from the flow hole. A pipe is connected to the bottom of the injection machine. A storage tank is connected to the end of the pipe away from the injection machine. A fixed plate is fixedly connected to the bottom of the storage tank. A fixed block is fixedly connected to the top of the fixed plate. The fixed block is fixedly connected to the outer wall of the injection machine. A motor is fixedly connected to the top of the fixed plate. A threaded rod is fixedly connected to the output end of the motor. The threaded rod is threadedly connected to the inside of the push plate. A fixed block is rotatably connected to the end of the threaded rod away from the motor. The fixed block is fixedly connected to the outer wall of the fixed plate.

[0007] Through the above technical solution, the injection molding machine transports resin from the storage tank to the pipeline via a conduit. This conduit is also connected to a pusher plate, which has flow holes inside. Because the flow holes are L-shaped, the resin flows out in the direction of the pusher plate's movement. Simultaneously, a threaded rod is fixed to the motor output end, and the threaded rod is threadedly connected to the pusher plate, allowing the pusher plate to slide along the inner wall of the fixed plate. When the pusher plate moves, it pushes the resin to move, and the resin flows through the holes on the surface of the plugging plate into the circuit board, completing the plugging process. At the same time, excess resin enters the collection tank through the liquid outlet, thereby reducing material waste and lowering production costs. Automated plugging can reduce the labor intensity of manual labor, while ensuring the accuracy of plugging and reducing human error, thus improving production efficiency.

[0008] As a further improvement to the above solution, the lifting mechanism includes a worktable, which is fixedly connected to an outer wall of a fixed plate. A cylinder is fixedly connected to the top of the worktable, a connecting rod is fixedly connected to the output end of the cylinder, a support plate is fixedly connected to the top of the connecting rod, and a top rod is fixedly connected to the top of the support plate.

[0009] As a further improvement to the above solution, the push rod is slidably connected inside the worktable, and the outer wall of the end of the push rod away from the support plate is fixedly connected to the inside of the fixed plate. A cylinder is fixedly connected to the top of the worktable, and a connecting rod is fixedly connected to the output end of the cylinder. A top plate is fixedly connected to the top of the connecting rod.

[0010] With the above technical solution, when the circuit board is transported to the top of the top plate, the motor stops rotating. At this time, the cylinder pushes the top plate through the connecting rod, lifting the circuit board and thus separating it from the conveying wheel. At the same time, the cylinder pushes the support plate through the connecting rod to move. At this time, the support plate drives the fixed plate to move through the top rod. When the fixed plate moves downward, the circuit board contacts the bottom of the plugging plate.

[0011] As a further improvement to the above solution, the mold changing mechanism includes a plugging plate, which is slidably connected inside the fixed plate. A handle is fixedly connected to the right side of the plugging plate, and a pin is slidably connected inside the plugging plate. The pin is slidably connected inside the fixed plate, and a handle is fixedly connected to the top of the pin.

[0012] The above technical solution allows the pin to move by pulling the handle. When the pin disengages from the plugging plate, the plugging plate is released. The handle then slides the plugging plate, allowing it to be replaced. This facilitates plugging different types of circuit boards, increases the equipment's practicality and production flexibility, ensures production consistency, and improves circuit board quality.

[0013] As a further improvement to the above solution, the operating mechanism includes a support plate, which is fixedly connected to the outer wall of the workbench. A motor is fixedly connected to the top of the support plate, and a rotating rod is fixedly connected to the output end of the motor.

[0014] As a further improvement to the above solution, a rotating wheel is fixedly connected to the outer wall of the rotating rod, a belt is rotatably connected to the outer wall of the rotating wheel, a first rotating wheel is rotatably connected to the inner wall of the belt, and a first rotating rod is fixedly connected inside the first rotating wheel.

[0015] As a further improvement to the above solution, the rotating rod is rotatably connected inside the workbench, the outer wall of the rotating rod is fixedly connected to the wheel, the outer wall of the wheel is rotatably connected to the belt, and the outer wall of the rotating rod is fixedly connected to the conveyor wheel.

[0016] With the above technical solution, when the circuit board is placed on the conveyor wheel, the motor drives the wheel to rotate via the rotating rod, and the wheel drives the rotating rod to rotate via the belt, thereby moving the circuit board. Automatic conveying can reduce manual intervention, thereby reducing labor intensity and improving production efficiency.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] This invention utilizes an injection molding machine to transport resin from a storage tank to a pipeline. This pipeline is connected to a pusher plate, which has an L-shaped flow hole inside. This allows the resin to flow out along the direction of the pusher plate's movement. Simultaneously, a threaded rod is fixed to the motor output end, threadedly connected to the pusher plate, causing the pusher plate to slide along the inner wall of a fixed plate. As the pusher plate moves, it pushes the resin, which flows through holes on the surface of the plugging plate into the circuit board, completing the plugging process. Excess resin flows into a collection tank through an outlet tank, reducing material waste and lowering production costs. Automated plugging reduces manual labor intensity while ensuring plugging accuracy, minimizing human error, and thus improving production efficiency.

[0019] This invention allows the pin to move by pulling a handle. When the pin disengages from the plugging plate, the plugging plate is released. The plugging plate can then be slid by the handle, making it easy to replace. This facilitates plugging different types of circuit boards, increases the practicality of the equipment, improves production flexibility, ensures production consistency, and enhances circuit board quality. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2This is a schematic diagram of the plugging mechanism of this utility model;

[0022] Figure 3 This utility model Figure 2 Enlarged structural diagram of section A in the middle;

[0023] Figure 4 This is a schematic diagram of the motor structure of this utility model;

[0024] Figure 5 This is a schematic diagram of the lifting mechanism of this utility model;

[0025] Figure 6 This is a schematic diagram of the mold changing mechanism of this utility model;

[0026] Figure 7 This is a schematic diagram of the operating mechanism of this utility model;

[0027] Figure 8 This is a schematic diagram of the structure of the fixing plate of this utility model.

[0028] Explanation of key symbols:

[0029] 1. Plug-in mechanism; 101. Fixed plate; 102. Discharge tank; 103. Discharge pipe; 104. Collection tank; 105. Fixed plate one; 106. Push plate; 107. Flow hole; 108. Pipe; 109. Injection machine; 110. Pipe one; 111. Storage tank; 112. Fixed plate two; 113. Fixed block; 114. Motor; 115. Threaded rod; 116. Fixed block one; 2. Lifting mechanism; 201. Worktable; 202. Cylinder; 203. Connecting rod 204. Support plate; 205. Top rod; 206. Cylinder 1; 207. Connecting rod 1; 208. Top plate; 3. Mold changing mechanism; 301. Plug plate; 302. Handle; 303. Pin; 304. Handle 1; 4. Running mechanism; 401. Support plate 1; 402. Motor 1; 403. Rotating rod; 404. Rotating wheel; 405. Belt; 406. Rotating wheel 1; 407. Rotating rod 1; 408. Rotating wheel 2; 409. Belt 1; 410. Conveying wheel. Detailed Implementation

[0030] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0031] Example:

[0032] Please combine Figure 1-8This embodiment provides a circuit board high-efficiency and stable via plugging device, including a via plugging mechanism 1, a lifting mechanism 2, a mold changing mechanism 3, and a running mechanism 4. The mold changing mechanism 3 is located inside the via plugging mechanism 1, the lifting mechanism 2 is located at the bottom of the via plugging mechanism 1, and the via plugging mechanism 1 is located on the front of the via plugging mechanism 1.

[0033] The plugging mechanism 1 includes a fixed plate 101. A liquid outlet groove 102 is formed at the top of the fixed plate 101. A liquid outlet pipe 103 is connected to the liquid outlet groove 102. A collection tank 104 is connected to the end of the liquid outlet pipe 103 away from the liquid outlet groove 102. A fixed plate 105 is fixedly connected to the bottom of the collection tank 104. A push plate 106 is slidably connected to the inner wall of the fixed plate 101. A flow hole 107 is formed inside the push plate 106. A pipe 108 is connected to the top of the flow hole 107. An injection machine 109 is connected to the end of the pipe 108 away from the flow hole 107. A pipe 11 is connected to the bottom of the injection machine 109. 0. Pipeline 110, at the end furthest from the injection molding machine 109, is connected to a storage tank 111. A fixing plate 112 is fixedly connected to the bottom of the storage tank 111. A fixing block 113 is fixedly connected to the top of the fixing plate 112. The fixing block 113 is fixedly connected to the outer wall of the injection molding machine 109. A motor 114 is fixedly connected to the top of the fixing plate 112. A threaded rod 115 is fixedly connected to the output end of the motor 114. The threaded rod 115 is threaded into the push plate 106. A fixing block 116 is rotatably connected to the end of the threaded rod 115 furthest from the motor 114. The fixing block 116 is fixedly connected to the outer wall of the fixing plate 101.

[0034] The lifting mechanism 2 includes a worktable 201, which is fixedly connected to the outer wall of the fixed plate 105. A cylinder 202 is fixedly connected to the top of the worktable 201. A connecting rod 203 is fixedly connected to the output end of the cylinder 202. A support plate 204 is fixedly connected to the top of the connecting rod 203. A top rod 205 is fixedly connected to the top of the support plate 204.

[0035] The push rod 205 is slidably connected inside the worktable 201. The outer wall of the end of the push rod 205 away from the support plate 204 is fixedly connected to the inside of the fixed plate 101. A cylinder 206 is fixedly connected to the top of the worktable 201. A connecting rod 207 is fixedly connected to the output end of the cylinder 206. A top plate 208 is fixedly connected to the top of the connecting rod 207.

[0036] The mold changing mechanism 3 includes a plug plate 301, which is slidably connected inside the fixed plate 101. A handle 302 is fixedly connected to the right side of the plug plate 301. A pin 303 is slidably connected inside the plug plate 301. A handle 304 is fixedly connected to the top of the pin 303.

[0037] The running mechanism 4 includes a support plate 401, which is fixedly connected to the outer wall of the workbench 201. A motor 402 is fixedly connected to the top of the support plate 401, and a rotating rod 403 is fixedly connected to the output end of the motor 402.

[0038] A rotating rod 403 is fixedly connected to a rotating wheel 404 on its outer wall. A belt 405 is rotatably connected to the outer wall of the rotating wheel 404. A rotating wheel 406 is rotatably connected to the inner wall of the belt 405. A rotating rod 407 is fixedly connected inside the rotating wheel 406.

[0039] Rotating rod 407 is rotatably connected inside the workbench 201. Rotating wheel 408 is fixedly connected to the outer wall of rotating rod 407. Belt 409 is rotatably connected to the outer wall of rotating wheel 408. Conveyor wheel 410 is fixedly connected to the outer wall of rotating rod 407.

[0040] The implementation principle of the circuit board high-efficiency and stable hole-filling device in this embodiment is as follows: When the circuit board is placed on the conveyor wheel 410, the motor 402 drives the rotating wheel 404 to rotate through the rotating rod 403. The rotating wheel 404 drives the rotating rod 407 to rotate through the belt 405, thereby moving the circuit board. Automatic conveying can reduce manual intervention, thereby reducing labor intensity and improving production efficiency. When the circuit board is conveyed to the top of the top plate 208, the motor 402 stops rotating. At this time, the cylinder 206 pushes the top plate 208 through the connecting rod 207, thus moving the circuit board. The circuit board is lifted, thus disengaging from the conveyor wheel 410. Simultaneously, the cylinder 202 pushes the support plate 204 to move via the connecting rod 203. At this time, the support plate 204 drives the fixed plate 101 to move via the push rod 205. When the fixed plate 101 moves downward, the circuit board contacts the bottom of the plugging plate 301. At this time, the injection molding machine 109 transports the resin inside the storage tank 111 to the pipe 108 through the pipe 110. The pipe 108 is also connected to the push plate 106. The push plate 106 has a flow hole 107 inside. Since the flow hole 107 is L-shaped, the resin flows in the forward direction of the push plate 106. Simultaneously, the output end of motor 114 is fixed with threaded rod 115. When threaded rod 115 rotates, since threaded rod 115 is threadedly connected to push plate 106, push plate 106 slides along the inner wall of fixed plate 101. At the same time, threaded rod 115 rotates inside fixed block 116, thus providing support. When push plate 106 moves, it pushes resin to move. Resin flows through the holes on the surface of plugging plate 301 into the circuit board, thus completing the plugging process. At the same time, excess resin enters the collection tank 104 through liquid outlet trough 102, thereby reducing material waste and lowering production costs. Automated hole plugging reduces manual labor intensity while ensuring plugging accuracy and minimizing human error, thereby improving production efficiency. Pulling handle 304 moves pin 303, releasing it when pin 303 disengages from the plugging plate 301. Handle 302 then slides the plugging plate 301, allowing for easy replacement. This facilitates plugging different types of circuit boards, increasing equipment usability, improving production flexibility, ensuring production consistency, and enhancing circuit board quality.

[0041] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A high-efficiency and stable via plugging device for circuit boards, characterized in that: It includes a plugging mechanism (1), a lifting mechanism (2), a mold changing mechanism (3) and a running mechanism (4). The mold changing mechanism (3) is located inside the plugging mechanism (1), the lifting mechanism (2) is located at the bottom of the plugging mechanism (1), and the plugging mechanism (1) is located on the front of the plugging mechanism (1). The plugging mechanism (1) includes a fixed plate (101), the top of which is provided with a liquid outlet groove (102), and a liquid outlet pipe (103) is connected to the liquid outlet groove (102). A collection tank (104) is connected to one end of the liquid outlet pipe (103) away from the liquid outlet groove (102). A fixed plate (105) is fixedly connected to the bottom of the collection tank (104). A push plate (106) is slidably connected to the inner wall of the fixed plate (101). A flow hole (107) is provided inside the push plate (106). A pipe (108) is connected to the top of the flow hole (107). An injection machine (109) is connected to one end of the pipe (108) away from the flow hole (107). A pipe (109) is connected to the bottom of the injection machine (109). 110), the end of the pipe (110) away from the injection machine (109) is connected to a storage tank (111), the bottom of the storage tank (111) is fixedly connected to a fixing plate (112), the top of the fixing plate (112) is fixedly connected to a fixing block (113), the fixing block (113) is fixedly connected to the outer wall of the injection machine (109), the top of the fixing plate (112) is fixedly connected to a motor (114), the output end of the motor (114) is fixedly connected to a threaded rod (115), the threaded rod (115) is threadedly connected to the inside of the push plate (106), the end of the threaded rod (115) away from the motor (114) is rotatably connected to a fixing block (116), the fixing block (116) is fixedly connected to the outer wall of the fixing plate (101).

2. The circuit board high-efficiency and stable via plugging device as described in claim 1, characterized in that, The lifting mechanism (2) includes a worktable (201), which is fixedly connected to the outer wall of the fixed plate (105). A cylinder (202) is fixedly connected to the top of the worktable (201), and a connecting rod (203) is fixedly connected to the output end of the cylinder (202). A support plate (204) is fixedly connected to the top of the connecting rod (203), and a top rod (205) is fixedly connected to the top of the support plate (204).

3. The circuit board high-efficiency and stable via plugging device as described in claim 2, characterized in that, The top rod (205) is slidably connected inside the workbench (201). The outer wall of the end of the top rod (205) away from the support plate (204) is fixedly connected inside the fixed plate (101). A cylinder (206) is fixedly connected to the top of the workbench (201). A connecting rod (207) is fixedly connected to the output end of the cylinder (206). A top plate (208) is fixedly connected to the top of the connecting rod (207).

4. The circuit board high-efficiency and stable via plugging device as described in claim 1, characterized in that, The mold changing mechanism (3) includes a plug plate (301), which is slidably connected inside the fixed plate (101). A handle (302) is fixedly connected to the right side of the plug plate (301). A pin (303) is slidably connected inside the plug plate (301). The pin (303) is slidably connected inside the fixed plate (101). A handle (304) is fixedly connected to the top of the pin (303).

5. The circuit board high-efficiency and stable via plugging device as described in claim 1, characterized in that, The operating mechanism (4) includes a support plate (401), which is fixedly connected to the outer wall of the workbench (201). A motor (402) is fixedly connected to the top of the support plate (401), and a rotating rod (403) is fixedly connected to the output end of the motor (402).

6. The circuit board high-efficiency and stable via plugging device as described in claim 5, characterized in that, A rotating wheel (404) is fixedly connected to the outer wall of the rotating rod (403), a belt (405) is rotatably connected to the outer wall of the rotating wheel (404), a first rotating wheel (406) is rotatably connected to the inner wall of the belt (405), and a first rotating rod (407) is fixedly connected inside the first rotating wheel (406).

7. The circuit board high-efficiency and stable via plugging device as described in claim 6, characterized in that, The rotating rod (407) is rotatably connected inside the workbench (201). The outer wall of the rotating rod (407) is fixedly connected to the rotating wheel (408). The outer wall of the rotating wheel (408) is rotatably connected to the belt (409). The outer wall of the rotating rod (407) is fixedly connected to the conveyor wheel (410).