Automatic spraying device for circuit board

Abstract

The utility model discloses an automatic spraying device for a circuit board, which relates to the technical field of spraying devices and comprises a base, a vertical plate is fixedly connected to the upper surface of the base, a transverse plate is fixedly connected to the top of the vertical plate, the transverse plate and the vertical plate are distributed in an L shape, and a cover box is arranged between the base and the transverse plate. The cover box is communicated with a first air pipe, the face, back on to the cover box, of the vertical plate is fixedly connected with a filter box, the end, away from the cover box, of the first air pipe penetrates through the vertical plate and is communicated with the filter box, the top of the face, back on to the cover box, of the vertical plate is fixedly connected with a fan, and the air inlet end of the fan is communicated with a second air pipe. According to the automatic spraying device for the circuit board, after the cover box abuts against the disc and covers the circuit board, the draught fan is started, the draught fan sucks the interior of the cover box through the first air pipe, dust and impurities on the circuit board are sucked away, filtering treatment is conducted in the filtering box, and the spraying effect of the circuit board is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of spraying devices, in particular to an automatic spraying device for a circuit board. Background Art

[0002] Circuit board can be called printed circuit board or printed circuit board. Usually, the conductive pattern made of printed circuit, printed components or a combination of the two on the insulating material according to the predetermined design is called printed circuit, and the conductive pattern that provides electrical connection between components on the insulating substrate is called printed circuit. In this way, the finished board of printed circuit or printed circuit is called printed circuit board, also called printed board or printed circuit board. Circuit boards can be divided into the following categories according to their functions: single-sided circuit board, double-sided circuit board, multi-layer circuit board, aluminum-based circuit board, impedance circuit board, FPC flexible circuit board, etc.

[0003] During the production process of the circuit board, the surface needs to be sprayed. Some existing spraying devices cannot clean the dust on the circuit board before spraying, which will affect the spraying of the circuit board.

[0004] Therefore, it is necessary to propose an automatic spraying device for circuit boards to solve the above problems. Utility Model Content

[0005] The utility model aims to provide an automatic spraying device for a circuit board, so as to solve the problem that some existing spraying devices cannot clean the dust on the circuit board before spraying, thus affecting the spraying of the circuit board.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an automatic spraying device for circuit boards, comprising a base, the upper surface of the base is fixedly connected to a vertical plate, the top of the vertical plate is fixedly connected to a horizontal plate, the horizontal plate and the vertical plate are distributed in an L shape, a cover box is arranged between the base and the horizontal plate, the cover box is connected to a first air duct, the side of the vertical plate facing away from the cover box is fixedly connected to a filter box, the end of the first air duct away from the cover box passes through the vertical plate and is connected to the filter box, the top of the vertical plate facing away from the cover box is fixedly connected to a fan, the air inlet end of the fan is connected to a second air duct, the end of the second air duct away from the fan is connected to the filter box, a spraying assembly cooperating with the cover box is arranged above the base, and an adjusting assembly for driving the cover box to move up and down is also arranged above the base.

[0007] Preferably, a rotating column is rotatably connected to the upper surface of the base, a disc is fixedly connected to the top of the rotating column, and a slot is provided on the upper surface of the disc.

[0008] Preferably, the card slots are arranged in plurality, the plurality of card slots are evenly distributed around the axis of the disc, and the plurality of card slots cooperate with the cover box in turn.

[0009] Preferably, the adjustment assembly includes a support plate and an electric push rod, the support plate is fixedly connected to the outer wall of the cover box, one end of the electric push rod is fixedly connected to the support plate, and the other end of the electric push rod is fixedly connected to the bottom of the cross plate.

[0010] Preferably, the air outlet end of the fan is connected to a third air duct, the end of the third air duct away from the fan is connected to a heating box, the heating box is fixedly connected to the vertical plate, the cover box is connected to a fourth air duct, and the end of the fourth air duct away from the cover box is connected to the heating box.

[0011] Preferably, the spray assembly includes a material box, a liquid pipe and a nozzle, the material box is fixedly connected to the top of the cross plate, the nozzle is penetrated through the top of the cover box, the nozzle is fixedly connected to the cover box, one end of the liquid pipe is connected to the nozzle, and one end of the liquid pipe passes through the cross plate and is connected to the material box.

[0012] Technical effects and advantages of the utility model:

[0013] 1. After the cover box is in contact with the disc and covers the circuit board, the fan is started. The fan sucks the inside of the cover box through the first air duct to remove dust and impurities on the circuit board, and performs filtering inside the filter box to ensure the effect of spraying the circuit board;

[0014] 2. When the circuit board to be sprayed rotates to the bottom of the cover box, start the electric push rod, control the telescopic end of the electric push rod to extend, the cover box abuts on the disc and covers the circuit board, which can not only facilitate the suction and cleaning of dust and impurities on the circuit board, but also prevent the spray liquid from splashing and avoid polluting the workshop air;

[0015] 3. When the spraying assembly is spraying the circuit board, the material discharge and material extraction operations can be carried out simultaneously in other slots on the disc to achieve the purpose of continuous processing and improve the efficiency of spraying;

[0016] 4. After spraying, part of the residual spray liquid forms mist inside the cover box. The fan sucks the mist spray liquid inside the cover box through the first air duct and filters it inside the filter box. The residual spray liquid is processed in time to avoid pollution of the workshop environment.

[0017] 5. After spraying is completed, start the heating device inside the heating box, and the fan transports high-temperature gas to the inside of the cover box through the fourth air duct to accelerate the drying efficiency of the spray liquid on the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The utility model is a schematic structural diagram of the automatic spraying device for circuit boards from one perspective.

[0019] Figure 2This is a schematic structural diagram of the automatic circuit board spraying device of the utility model from another perspective.

[0020] Figure 3 It is a schematic diagram of the cover box, the first air duct and the nozzle structure of the utility model.

[0021] In the figure: 1. base; 2. vertical plate; 3. horizontal plate; 4. cover box; 5. support plate; 6. electric push rod; 7. first air duct; 8. filter box; 9. second air duct; 10. fan; 11. third air duct; 12. heating box; 13. fourth air duct; 14. material box; 15. liquid pipe; 16. nozzle; 17. rotating column; 18. disc; 19. slot. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clarify the technical solutions in the embodiments of the utility model; it is completely described. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] The utility model provides Figure 1-Figure 3 The circuit board automatic spraying device shown comprises a base 1, the upper surface of the base 1 is fixedly connected with a vertical plate 2, the top of the vertical plate 2 is fixedly connected with a horizontal plate 3, and the horizontal plate 3 and the vertical plate 2 are distributed in an L shape.

[0024] A cover box 4 is provided between the base 1 and the cross plate 3. The cover box 4 is provided. Before the spraying operation, the cover box 4 is covered on the circuit board, which can not only facilitate the suction and cleaning of dust and impurities on the circuit board, but also prevent the spraying liquid from splashing and avoid causing pollution to the workshop air. The upper surface of the base 1 is rotatably connected with a rotating column 17, and the top of the rotating column 17 is fixedly connected with a disc 18. The upper surface of the disc 18 is provided with a slot 19, and the slots 19 are arranged in multiples, and the multiple slots 19 are evenly distributed around the axis of the disc 18, and the multiple slots 19 are matched with the cover box 4 in turn. When used specifically, the circuit board is clamped in the inside of the slot 19, and the structure of the slot 19 can be set according to the shape of the circuit board to improve the stability of positioning. In addition, a driving device (not shown in the figure) is provided on the base 1, including a motor, a gear and other structures, so as to realize the rotation of the disc 18 by the rotating column 17. The driving device is an existing common technology and is not described here.

[0025] A spraying assembly that cooperates with the cover box 4 is arranged above the base 1, and the spraying assembly includes a material box 14, a liquid pipe 15 and a nozzle 16. The material box 14 is fixedly connected to the top of the horizontal plate 3, and the interior of the material box 14 is injected with spraying liquid. The nozzle 16 is penetrated through the top of the cover box 4, and the nozzle 16 is fixedly connected to the cover box 4. One end of the liquid pipe 15 is connected to the nozzle 16, and one end of the liquid pipe 15 passes through the horizontal plate 3 and is connected to the material box 14. When used specifically, it also includes a delivery pump body and other structures to cooperate with the spraying assembly, and the spraying liquid inside the material box 14 is delivered to the nozzle 16 by the liquid pipe 15, and the nozzle 16 sprays the circuit board.

[0026] While the spraying assembly is spraying the circuit board, material discharge and material extraction operations can be performed simultaneously in other slots 19 on the disc 18 to achieve the purpose of continuous processing and improve the efficiency of spraying.

[0027] The cover box 4 is connected with a first air duct 7, and a filter box 8 is fixedly connected to the side of the vertical plate 2 facing away from the cover box 4. The end of the first air duct 7 away from the cover box 4 passes through the vertical plate 2 and is connected to the filter box 8. A filter device is arranged inside the filter box 8, and the filter device includes a filter screen and other structures, which can filter dust, splashing mist spray liquid, etc. A fan 10 is fixedly connected to the top of the side of the vertical plate 2 facing away from the cover box 4, and a second air duct 9 is connected to the air inlet end of the fan 10, and the end of the second air duct 9 away from the fan 10 is connected to the filter box 8.

[0028] An adjustment component for driving the cover box 4 to move up and down is also arranged above the base 1, and the adjustment component includes a support plate 5 and an electric push rod 6. The support plate 5 is fixedly connected to the outer wall of the cover box 4, one end of the electric push rod 6 is fixedly connected to the support plate 5, and the other end of the electric push rod 6 is fixedly connected to the bottom of the cross plate 3.

[0029] When the circuit board to be sprayed rotates to the bottom of the cover box 4, the electric push rod 6 is started and the telescopic end of the electric push rod 6 is controlled to extend. The cover box 4 abuts against the disc 18 and covers the circuit board, which can facilitate the suction and cleaning of dust and impurities on the circuit board and prevent the spray liquid from splashing, thereby avoiding pollution of the workshop air.

[0030] The air outlet of the fan 10 is connected to a third air duct 11, and the end of the third air duct 11 away from the fan 10 is connected to a heating box 12, and the heating box 12 is fixedly connected to the vertical plate 2. A heating device is arranged inside the heating box 12, and the heating device includes a heating plate and other structures, which can quickly heat the gas passing through the heating box 12. The cover box 4 is connected to a fourth air duct 13, and the end of the fourth air duct 13 away from the cover box 4 is connected to the heating box 12.

[0031] Specifically, after the cover box 4 abuts against the disc 18 and covers the circuit board, the fan 10 is started, and the fan 10 sucks the inside of the cover box 4 through the first air duct 7 to remove dust and impurities on the circuit board, and performs filtering inside the filter box 8 to ensure the effect of spraying the circuit board;

[0032] The filtered gas enters the cover box 4 through the fourth air duct 13, so that no vacuum is formed inside the cover box 4 and the air flow inside the cover box 4 is accelerated. In specific use, a pressure regulating device or a solenoid valve can be provided on the fourth air duct 13 to control the gas entering the cover box 4.

[0033] After spraying is completed, some of the remaining spray liquid forms mist inside the cover box 4. The fan 10 sucks the mist spray liquid inside the cover box 4 through the first air duct 7 and filters it inside the filter box 8, so as to deal with the remaining spray liquid in time and avoid pollution of the workshop environment.

[0034] After the spraying is completed, the heating device inside the heating box 12 is started, and the fan 10 delivers high-temperature gas to the inside of the cover box 4 through the fourth air duct 13 to accelerate the drying efficiency of the spray liquid on the circuit board.

Claims

1. A circuit board automatic spraying device, comprising a base (1), characterized in that: The upper surface of the base (1) is fixedly connected to a vertical plate (2), the top of the vertical plate (2) is fixedly connected to a horizontal plate (3), the horizontal plate (3) and the vertical plate (2) are L-shaped, a cover box (4) is arranged between the base (1) and the horizontal plate (3), the cover box (4) is connected to a first air duct (7), a side of the vertical plate (2) facing away from the cover box (4) is fixedly connected to a filter box (8), and an end of the first air duct (7) away from the cover box (4) passes through the vertical plate (2) and is connected to the filter box (8); a fan (10) is fixedly connected to the top of the vertical plate (2) facing away from the cover box (4); a second air duct (9) is connected to the air inlet end of the fan (10); an end of the second air duct (9) away from the fan (10) is connected to the filter box (8); a spraying component that cooperates with the cover box (4) is arranged above the base (1); and an adjustment component that drives the cover box (4) to move up and down is also arranged above the base (1).

2. The automatic spraying device for circuit boards according to claim 1, characterized in that: The upper surface of the base (1) is rotatably connected to a rotating column (17), the top of the rotating column (17) is fixedly connected to a disc (18), and a slot (19) is provided on the upper surface of the disc (18).

3. The automatic spraying device for circuit boards according to claim 2, characterized in that: The card slots (19) are arranged in plurality, the plurality of card slots (19) are evenly distributed around the axis of the disk (18), and the plurality of card slots (19) cooperate with the cover box (4) in turn.

4. The automatic spraying device for circuit boards according to claim 1, characterized in that: The adjustment assembly comprises a support plate (5) and an electric push rod (6); the support plate (5) is fixedly connected to the outer wall of the cover box (4); one end of the electric push rod (6) is fixedly connected to the support plate (5); and the other end of the electric push rod (6) is fixedly connected to the bottom of the cross plate (3).

5. The automatic spraying device for circuit boards according to claim 1, characterized in that: The air outlet end of the fan (10) is connected to a third air duct (11), the end of the third air duct (11) away from the fan (10) is connected to a heating box (12), the heating box (12) is fixedly connected to the vertical plate (2), the cover box (4) is connected to a fourth air duct (13), the end of the fourth air duct (13) away from the cover box (4) is connected to the heating box (12).

6. The automatic spraying device for circuit boards according to claim 1, characterized in that: The spraying assembly comprises a material box (14), a liquid pipe (15) and a nozzle (16); the material box (14) is fixedly connected to the top of the transverse plate (3); the nozzle (16) is penetrated through the top of the cover box (4); the nozzle (16) is fixedly connected to the cover box (4); one end of the liquid pipe (15) is connected to the nozzle (16); one end of the liquid pipe (15) passes through the transverse plate (3) and is connected to the material box (14).

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