Hole cleaning device for cleaning ink in PCB small hole

Abstract

The utility model belongs to the technical field of printed circuit boards, and particularly relates to a hole cleaning device for cleaning printing ink in small holes of a PCB, which comprises a bottom plate, a first sliding groove is formed in the upper surface of the bottom plate, a manual transverse moving assembly is arranged in the first sliding groove, a connecting plate is arranged on the manual transverse moving assembly, and a manual longitudinal moving assembly is arranged on the connecting plate. The manual longitudinal moving assembly is provided with a containing plate used for bearing a PCB, a support is arranged on one side of the bottom plate, a second sliding groove is formed in the support, a compression assembly is arranged in the second sliding groove, a supporting plate is arranged on the compression assembly, a mounting hole is formed in the supporting plate, and a conical suction head is arranged in the mounting hole. A negative pressure assembly connected with the conical suction head is arranged on one side of the support. The device not only improves the positioning precision and the ink cleaning effect, but also does not need to be frequently picked up and put down, so that the labor is saved, the time and labor are saved, and the circuit board is prevented from being damaged.

Description

Technical Field

[0001] This utility model belongs to the technical field of printed circuit boards, and particularly relates to a hole cleaning device for cleaning the ink in small holes of a PCB. Background Technique

[0002] A printed circuit board (Printed Circuit Board), abbreviated as PCB, also known as a printed board, is one of the important components of electronic products. Due to the use of printed circuit boards, the errors in wiring and assembly are reduced, the time for equipment maintenance, debugging and inspection is saved, it is beneficial for equipment replacement, the wiring density is high, the volume is small, the weight is light, which is conducive to the miniaturization of electronic equipment, conducive to mechanized and automated production, improves labor productivity and reduces the cost of electronic equipment. In recent years, circuit boards have developed towards the trends of being light, thin, small and high-density interconnection. To load more micro-devices on a limited surface, this has promoted the design of printed circuit boards to develop in the directions of high density, high precision, multi-layer and small aperture. The minimum via hole of the mainstream product has dropped from 0.30 mm to 0.25 mm, while the minimum via hole manufacturing ability of ordinary screen printing is 0.30 mm. During the screen printing process, it is inevitable that the green oil enters the hole, and even the whole hole is blocked by the green oil. After development, there will be residual green oil in the hole, which affects the product quality.

[0003] As described in a PCB board micro-hole dredging device with the authorization announcement number CN206908950U, the device includes a platform, a suction hole is opened on the platform, a suction hole operation table is arranged above the suction hole, a through hole is arranged on the suction hole operation table, and the through hole is communicated with the suction hole; a vacuum cleaner is connected below the suction hole. Compared with the prior art, a PCB board micro-hole dredging device provided by the present utility model can suck out the green oil in the micro-holes generated during the PCB screen printing process, reduce the difficulty of hole development, and at the same time has a simple structure, low manufacturing cost and is convenient for popularization.

[0004] Although suction can be carried out by a vacuum cleaner, after sucking one hole of the circuit board, it is necessary to move the circuit board on the operation table. When dealing with a large number or dense micro-holes, manually moving the circuit board to locate the next hole may become cumbersome and time-consuming. At the same time, frequent handling of the circuit board, the sweat and impurities on the hands are likely to cause damage to the circuit board.

[0005] Therefore, we have proposed a hole cleaning device for cleaning the ink in small holes of a PCB. This device not only improves the positioning accuracy and the effect of ink cleaning, but also does not need to be frequently picked up and put down, which not only saves manpower, achieves the effect of saving time and effort, but also prevents the circuit board from being damaged. Summary of the Utility Model

[0006] The purpose of this utility model is to provide a hole cleaning device for cleaning the ink in the small holes of a PCB. This device not only improves the positioning accuracy and the effect of ink cleaning, but also does not need to be frequently picked up and put down, which not only saves manpower and achieves the effect of saving time and effort, but also prevents the phenomenon of damage to the circuit board.

[0007] The technical solution adopted by this utility model is specifically as follows:

[0008] A hole cleaning device for cleaning the ink in the small holes of a PCB, including a bottom plate. A first sliding groove is opened on the upper surface of the bottom plate. A manual lateral movement component is arranged inside the first sliding groove. A connecting plate is arranged on the manual lateral movement component. A manual longitudinal movement component is arranged on the connecting plate. A placement plate for carrying the PCB board is arranged on the manual longitudinal movement component;

[0009] A support is arranged on one side of the bottom plate. A second sliding groove is opened on the support. A compression component is arranged inside the second sliding groove. A support plate is arranged on the compression component. An installation hole is opened on the support plate. A conical suction head is arranged inside the installation hole. And a negative pressure component connected to the conical suction head is arranged on one side of the support.

[0010] Further, the manual lateral component includes a rotating disk arranged on the bottom plate. A first rotating rod is arranged on the rotating disk. One end of the first rotating rod away from the rotating disk is installed with a threaded rod located inside the first sliding groove. A threaded sleeve connected to the connecting plate is sleeved on the threaded rod.

[0011] Further, two groups of third sliding grooves are opened on the bottom plate. A first fixed shaft is arranged inside each group of third sliding grooves. A sliding sleeve connected to the connecting plate is slidably sleeved on the first fixed shaft.

[0012] Further, the manual longitudinal movement component includes a fourth sliding groove opened on the connecting plate. First magnetic surfaces are arranged on the inner walls of both sides of the fourth sliding groove. And a second fixed shaft is arranged inside the fourth sliding groove. A second slider connected to the placement plate is sleeved on the second fixed shaft. A plurality of rotating grooves are opened on both sides of the second slider. A roller is arranged inside each rotating groove. A second magnetic surface attracted to the first magnetic surface is arranged on the outside of the roller.

[0013] Further, a fixing plate and a protection plate are arranged on the conical suction head. A fixing rod is arranged between the fixing plate and the protection plate. And a through hole for installing the bottom position of the conical suction head is opened on the protection plate.

[0014] Further, the compression assembly includes a third fixed shaft disposed inside the second chute. A third slider and a spring are sleeved on the third fixed shaft. The bottom of the third slider is connected to the spring, and one side of the third slider is connected to the support plate.

[0015] Further, the negative pressure assembly includes a storage cylinder disposed on the bracket. A negative pressure pump and a connecting hose are disposed on the storage cylinder. One end of the connecting hose is connected to the conical suction head.

[0016] The technical effects achieved by this utility model are as follows:

[0017] First, when people need to suck the ink in the small holes of the PCB board, place the PCB board on the placement plate. Then, drive the connecting plate through the compression assembly to make the conical suction head fit with the PCB board on the placement plate. Then, provide suction through the negative pressure assembly to suck the ink in the small holes of the PCB board. After sucking the ink in one small hole of the PCB board, drive the placement plate to move horizontally manually through the horizontal movement assembly, and drive the placement plate to move vertically manually through the vertical movement assembly, so that the remaining small holes of the PCB board are located below the conical suction head. In this way, the positioning is accurate, and the PCB board will not be damaged due to being picked up and moved multiple times by hand. This device not only improves the positioning accuracy and the effect of ink cleaning, but also saves manpower, achieving the effect of saving time and effort. Description of the Drawings

[0018] Figure 1 is the structural schematic diagram of the whole utility model;

[0019] Figure 2 is the exploded view of the utility model;

[0020] Figure 3 is the structural schematic diagram of the compression assembly of the utility model;

[0021] Figure 4 is the structural schematic diagram of the negative pressure assembly of the utility model.

[0022] In the drawings, the list of components represented by each reference numeral is as follows:

[0023] 1. Bottom plate; 2. First chute; 3. Connecting plate; 4. Placement plate; 5. Bracket; 6. Second chute; 7. Support plate; 8. Conical suction head; 9. Rotating disk; 10. Threaded rod; 11. Threaded sleeve; 12. Third chute; 13. First fixed shaft; 14. Sliding sleeve; 15. Fourth chute; 16. Second fixed shaft; 17. Second slider; 18. Roller; 19. Fixed plate; 20. Protective plate; 21. Third fixed shaft; 22. Third slider; 23. Spring; 24. Storage cylinder; 25. Connecting hose. Detailed Embodiments

[0024] In order to make the purpose and advantages of this utility model clearer and more explicit, the following specifically describes this utility model in combination with embodiments. It should be understood that the following text only describes one or several specific implementation manners of this utility model, and does not strictly limit the scope of protection specifically claimed for this utility model.

[0025] As Figures 1-4 shown, the technical solution adopted by this utility model is specifically as follows: A hole cleaning device for cleaning the ink in small holes of a PCB includes a bottom plate 1. A first chute 2 is opened on the upper surface of the bottom plate 1. A manual lateral movement component is arranged inside the first chute 2. A connecting plate 3 is arranged on the manual lateral movement component. A manual longitudinal movement component is arranged on the connecting plate 3. A placement plate 4 for carrying the PCB board is arranged on the manual longitudinal movement component;

[0026] A bracket 5 is arranged on one side of the bottom plate 1. A second chute 6 is opened on the bracket 5. A compression component is arranged inside the second chute 6. A support plate 7 is arranged on the compression component. An installation hole is opened on the support plate 7. A conical suction head 8 is arranged inside the installation hole. And a negative pressure component connected to the conical suction head 8 is arranged on one side of the bracket 5.

[0027] Its working principle is as follows: First, when people need to suck the ink in the small holes of the PCB board, place the PCB board on the placement plate 4. Then drive the connecting plate 3 through the compression component to make the conical suction head 8 fit with the PCB board on the placement plate 4. Then provide suction through the negative pressure component to suck the ink in the small holes of the PCB board. After sucking the ink in one small hole of the PCB board, drive the placement plate 4 to move laterally through the manual lateral movement component, and drive the placement plate 4 to move longitudinally through the manual longitudinal component, so that the remaining small holes of the PCB board are located below the conical suction head 8. In this way, the positioning is accurate, and the PCB board will not be damaged due to being picked up and moved multiple times by manually moving the PCB board. This device not only improves the positioning accuracy and the effect of ink cleaning, but also saves manpower, achieving the effect of saving time and effort.

[0028] Among them, the manual lateral component includes a rotating disk 9 arranged on the bottom plate 1. A first rotating rod is arranged on the rotating disk 9. One end of the first rotating rod away from the rotating disk 9 is installed with a threaded rod 10 located inside the first chute 2. A threaded sleeve 11 connected to the connecting plate 3 is sleeved on the threaded rod 10.

[0029] Drive the first rotating rod through the rotating disk 9 to make the threaded rod 10 move inside the first chute 2. The threaded rod 10 drives the threaded sleeve 11 to drive the connecting plate 3 to drive the placement plate 4 to move laterally.

[0030] At the same time, two groups of third chutes 12 are opened on the bottom plate 1. A first fixed shaft 13 is arranged inside each group of third chutes 12. A sliding sleeve 14 connected to the connecting plate 3 is slidably sleeved on the first fixed shaft 13.

[0031] When the connecting plate 3 moves, it drives the sliding sleeve 14 to move on the first fixed shaft 13 inside the third chute 12, so that the movement is stable and there is no shaking phenomenon.

[0032] Furthermore, the third chute 12 matches the sliding sleeve 14. Here, the meaning of matching is that the sliding sleeve 14 can move smoothly inside the third chute 12 without jamming.

[0033] The manual longitudinal movement component includes a fourth chute 15 opened on the connecting plate 3. First magnetic surfaces are provided on the inner walls on both sides of the fourth chute 15, and a second fixed shaft 16 is provided inside the fourth chute 15. A second slider 17 connected to the placement plate 4 is sleeved on the second fixed shaft 16. A plurality of rotating grooves are opened on both sides of the second slider 17, and a roller 18 is provided inside each rotating groove. A second magnetic surface attracted to the first magnetic surface is provided on the outside of the roller 18.

[0034] People drive the second slider 17 to move on the second fixed shaft 16 by making the placement plate 4, and at the same time the second slider 17 drives the roller 18 to move on the inner wall of the fourth chute 15, so as to perform longitudinal adjustment. After the adjustment is completed, the first magnetic surface and the second magnetic surface attract each other to fix.

[0035] It should be noted that: although the contact surface between the roller 18 and the side wall of the fourth chute 15 is only a point, by setting a plurality of rollers 18, the fixing effect can be ensured (the weights of the placement plate 4 and the PBC board are very light).

[0036] The reason why the present utility model does not select a screw is that when people perform standing adjustment (the position is perpendicular to the connecting plate 3, not parallel), if the rotating part on the screw is arranged on one side of the human body (facing the human body), people need to turn sideways to rotate, which will cause interference to the human body. If it is back to the human body, people need to move to adjust, which not only increases the processing time, but also increases the labor burden of people.

[0037] A fixing plate 19 and a protection plate 20 are provided on the conical suction head 8. A fixing rod is provided between the fixing plate 19 and the protection plate 20, and a through hole for installing the bottom position of the conical suction head 8 is opened on the protection plate 20.

[0038] Such a setting can protect other positions of the PBC board through the protection plate 20 when the conical suction head 8 moves downward, and prevent the ink at other positions from being damaged by the suction force.

[0039] The material of the protection plate 20 is rubber, and the rubber layer can prevent the circuit board from being crushed.

[0040] The compression component includes a third fixed shaft 21 disposed inside the second sliding groove 6. A third slider 22 and a spring 23 are sleeved on the third fixed shaft 21. The bottom of the third slider 22 is connected to the spring 23, and one side of the third slider 22 is connected to the support plate 7.

[0041] By making the support plate 7 drive the third slider 22 to squeeze the spring 23 on the third fixed shaft 21, the conical suction head 8 is moved downward to work.

[0042] It can be selected that the movement of the support plate 7 can be carried out by manual pressing or by an electric telescopic rod. Manual pressing saves costs, and pressing by the electric telescopic rod saves manpower, but the cost investment is relatively large.

[0043] The negative pressure component includes a storage cylinder 24 disposed on the bracket 5. A negative pressure pump and a connecting hose 25 are provided on the storage cylinder 24. One end of the connecting hose 25 is connected to the conical suction head 8.

[0044] Power is provided by the negative pressure pump to generate negative pressure. The suction force makes the conical suction head 8 generate suction force through the connecting hose 25, so as to achieve the effect of sucking ink.

[0045] The working principle of this utility model is as follows: First, when people need to suck the ink in the small holes of the PCB board, place the PCB board on the placement plate 4. Then, drive the connecting plate 3 through the compression component to make the conical suction head 8 fit with the PCB board on the placement plate 4. Then, provide suction force through the negative pressure component to suck the ink in the small holes of the PCB board. After sucking the ink in one small hole of the PCB board, drive the placement plate 4 to move horizontally through the manual horizontal movement component, and drive the placement plate 4 to move vertically through the manual vertical component, so that the remaining small holes of the PCB board are located below the conical suction head 8. In this way, the positioning is accurate, and the PCB board will not be damaged due to being picked up and moved manually multiple times. This device improves the positioning accuracy, improves the effect of ink cleaning, and at the same time does not need to be picked up and put down frequently, which not only saves manpower, achieves the effect of saving time and effort, but also prevents the phenomenon of damage to the circuit board.

[0046] The above is only the preferred embodiment of this utility model. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of this utility model, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of this utility model. The structures, devices, and operation methods not specifically described and explained in this utility model, unless otherwise specified and limited, are implemented according to the conventional means in this field.

Claims

1. A hole cleaning device for cleaning the ink in the small holes of a PCB, comprising a bottom plate (1), characterized in that: A first chute (2) is formed on the upper surface of the base plate (1). A manual lateral movement assembly is arranged inside the first chute (2). A connecting plate (3) is arranged on the manual lateral movement assembly. A manual longitudinal movement assembly is arranged on the connecting plate (3). A placing plate (4) for carrying a PCB board is arranged on the manual longitudinal movement assembly. A bracket (5) is arranged on one side of the base plate (1). A second chute (6) is formed in the bracket (5). A compression assembly is arranged inside the second chute (6). A support plate (7) is arranged on the compression assembly. A mounting hole is formed in the support plate (7). A conical suction head (8) is arranged inside the mounting hole. And a negative pressure assembly connected to the conical suction head (8) is arranged on one side of the bracket (5).

2. The hole cleaning device for cleaning the ink in the small holes of the PCB according to claim 1, wherein: The manual lateral movement assembly includes a rotating disk (9) arranged on the base plate (1). A first rotating rod is arranged on the rotating disk (9). A threaded rod (10) located inside the first chute (2) is installed at one end of the first rotating rod away from the rotating disk (9). A threaded sleeve (11) connected to the connecting plate (3) is sleeved on the threaded rod (10).

3. The hole cleaning device for cleaning the ink in the small holes of the PCB according to claim 1, wherein: Two groups of third chutes (12) are formed on the base plate (1). A first fixed shaft (13) is arranged inside each group of third chutes (12). A sliding sleeve (14) connected to the connecting plate (3) is slidably sleeved on the first fixed shaft (13).

4. The hole cleaning device for cleaning the ink in the small holes of the PCB according to claim 1, wherein: The manual longitudinal movement assembly includes a fourth chute (15) formed on the connecting plate (3). First magnetic surfaces are arranged on the inner walls on both sides of the fourth chute (15). A second fixed shaft (16) is arranged inside the fourth chute (15). A second slider (17) connected to the placing plate (4) is sleeved on the second fixed shaft (16). A plurality of rotating grooves are formed on both sides of the second slider (17). A roller (18) is arranged inside each rotating groove. A second magnetic surface attracted to the first magnetic surface is arranged on the outer side of the roller (18).

5. A hole cleaning device for cleaning the ink in the small holes of a PCB, characterized in that: A fixing plate (19) and a protection plate (20) are arranged on the conical suction head (8). A fixing rod is arranged between the fixing plate (19) and the protection plate (20). And a through hole for installing the bottom position of the conical suction head (8) is formed in the protection plate (20).

6. The hole cleaning device for cleaning the ink in the small holes of the PCB according to claim 1, wherein: The compression assembly includes a third fixed shaft (21) arranged inside the second chute (6). A third slider (22) and a spring (23) are sleeved on the third fixed shaft (21). The bottom of the third slider (22) is connected to the spring (23). And one side of the third slider (22) is connected to the support plate (7).

7. A hole cleaning device for cleaning the ink in the small holes of a PCB, characterized in that: The negative pressure assembly includes a storage cylinder (24) arranged on the bracket (5). A negative pressure pump and a connecting hose (25) are arranged on the storage cylinder (24). One end of the connecting hose (25) is connected to the conical suction head (8).

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