PCBA (printed circuit board assembly) three-proofing glue spraying equipment

Abstract

The utility model discloses PCBA (printed circuit board assembly) three-proofing glue spraying equipment which comprises a working shell with a plurality of fixed bases, a transparent observation window is arranged on the working shell, working openings are arranged on two side walls of the working shell, a working cavity is arranged in the working shell, a working hinge is fixedly connected onto the inner wall of the working cavity, and the working hinge is fixedly connected onto the inner wall of the working cavity. The other end of the working hinge is fixedly connected with a spraying gun, a working screw rod is rotationally connected into the working cavity, one end of the working screw rod penetrates through the working shell, a working sliding rod is further fixedly connected into the working cavity, a working sliding block is slidably connected to the working sliding rod, and the working sliding block is in threaded connection with the working screw rod; the end, away from the working sliding rod, of the working sliding block is connected with a containing frame through a rotating assembly, and the end, close to the containing frame, of the working sliding block is provided with an auxiliary cavity. According to the utility model, comprehensive spraying can be carried out on a larger circuit board, and the spraying effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board production and processing, in particular to a PCBA three-proof glue spraying device. Background Art

[0002] Printed circuit board, also known as printed circuit board, often uses the English abbreviation PCB or PCBA, is an important electronic component, a support for electronic components, and a provider of circuit connections for electronic components. When printing printed circuit boards are produced, it is necessary to apply three-proof paint on the surface of the printed circuit board to protect the circuit from damage, thereby improving the reliability of the circuit board, increasing its safety factor, and ensuring its service life. Among them, the three-proof glue is also known as circuit board protection glue or coating glue, and the silicone three-proof glue is a silicone modified resin used to protect circuit boards and related equipment from erosion by harsh environments, thereby improving and extending the service life of the product and ensuring safety and reliability during use.

[0003] Most of the existing PCBA conformal glue spraying equipment is designed for spraying small circuit boards. When encountering larger circuit boards, the staff needs to constantly adjust the position of the circuit board corresponding to the spray gun to perform multiple spraying, which increases the labor intensity of the staff and reduces the circuit board spraying effect.

[0004] To this end, we propose a PCBA three-proof adhesive spraying equipment to solve the above problems. Utility Model Content

[0005] The utility model aims to solve the problems existing in the prior art and proposes a PCBA three-proof glue spraying device.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A PCBA three-proof glue spraying device comprises a working shell with multiple fixed bases, the working shell is provided with a transparent observation window, the two side walls of the working shell are provided with working openings, a working chamber is provided in the working shell, a working hinge is fixedly connected to the inner wall of the working chamber, a spray gun is fixedly connected to the other end of the working hinge, a working screw is rotatably connected in the working chamber, one end of the working screw passes through the working shell, a working slide rod is also fixedly connected in the working chamber, a working slider is slidably connected to the working slider, the working slider and the working screw are threadedly connected, an end of the working slider away from the working slide rod is connected to a placement frame through a rotating component, an auxiliary chamber is provided at an end of the working slider close to the placement frame, a small motor is provided in the auxiliary chamber, an output end of the small motor is fixedly connected to the rotating component, and a plurality of fixing devices are also provided in the placement frame.

[0008] Preferably, the fixing device includes a working box fixedly connected to the side wall of the placement frame, a working slide is fixedly connected in the working box, a lifting slide is slidably connected to the working slide, the lifting slide passes through the working box, the end of the lifting slide away from the working slide is fixedly connected to the working pressure plate, a working shaft is also rotatably connected in the working box, the working shaft passes through the placement frame and the working box, a rack is provided on the lifting slide, a working gear is fixedly connected to the working shaft, the working gear and the rack are meshing, and an angle adjustment device is also provided on the working shell.

[0009] Preferably, the angle adjustment device includes a threaded sleeve rotatably connected to the working shell, a lifting screw is threadedly connected to the inner thread of the threaded sleeve, one end of the lifting screw away from the threaded sleeve is fixedly connected to the spray gun, and a limit assembly is also provided in the working chamber.

[0010] Preferably, the limit assembly includes a limit plate fixedly connected to the inner wall of the working chamber, the lifting screw slides through the limit plate, a limit block is provided on the limit plate, a limit groove is provided on the lifting screw, and the limit block and the limit groove are arranged in coordination.

[0011] Preferably, the working screw is provided with a rotating handle, the rotating handle is arranged in a disc shape, and the rotating handle is arranged in coordination with the working screw.

[0012] Preferably, the working pressure plate is made of rubber material, and the working pressure plate is arranged in conjunction with the placement frame.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] In the utility model: 1. Through the cooperation of the working shell, the working opening, the working cavity, the working hinge, the spray gun, the working screw, the working slide bar, the working slider, the placement frame, the small motor, the working box, the working slide plate, the lifting slider, the working pressure plate, the working shaft, the rack and the working gear, the staff can put the circuit board into the placement frame and fix it with the working pressure plate, and then rotate the working screw for feeding, and at the same time control the small motor to drive the placement frame to rotate, so that different positions of the circuit board can be sprayed, avoiding frequent adjustment of the position of the circuit board, and improving work efficiency.

[0015] 2. Through the cooperation of the working chamber, working hinge, spray gun, threaded sleeve, lifting screw and limit plate, the staff can rotate the threaded sleeve to drive the spray gun to move, and then adjust the angle of the threaded sleeve with the cooperation of the working hinge, so as to cooperate with the rotation of the placement frame to make the spraying more comprehensive and effective, thereby improving the spraying effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1This is a three-dimensional schematic diagram of the front structure of a PCBA three-proof adhesive spraying equipment proposed by the utility model;

[0017] Figure 2 This is a front structural cross-sectional view of a PCBA three-proof adhesive spraying equipment proposed by the utility model;

[0018] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0019] In the figure: 1 working shell, 2 working opening, 3 working chamber, 4 working hinge, 5 spray gun, 6 working screw, 7 working slide bar, 8 working slider, 9 placement frame, 10 small motor, 11 working box, 12 working slide plate, 13 lifting slider, 14 working pressure plate, 15 working shaft, 16 rack, 17 working gear, 18 threaded sleeve, 19 lifting screw, 20 limit plate. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Reference Figure 1-Figure 3 A PCBA three-proof glue spraying equipment comprises a working shell 1 with multiple fixed bases, a transparent observation window is arranged on the working shell 1, and the staff can understand the situation inside the working shell 1 through the transparent observation window, and working openings 2 are arranged on both side walls of the working shell 1 to facilitate the entry and exit of products, and a working cavity 3 is arranged in the working shell 1, and a working hinge 4 is fixedly connected to the inner wall of the working cavity 3, and a spray gun 5 is fixedly connected to the other end of the working hinge 4. When the other end of the spray gun 5 is subjected to force, the angle of the spray gun 5 will be changed under the cooperation of the working hinge 4, and a working screw 6 is rotatably connected in the working cavity 3, and one end of the working screw 6 passes through the working shell 1, and a rotating handle is arranged on the working screw 6, which is disc-shaped, and the rotating handle is arranged in conjunction with the working screw 6, which is more convenient for the staff to rotate the working screw 6;

[0022] The working chamber 3 is also fixedly connected with a working slide bar 7, on which a working slide bar 8 is slidably connected, and the working slide bar 8 and the working screw 6 are threadedly connected. The working slide bar 7 limits the working slide bar 8 so that the working slide bar 8 can only slide left and right along the direction of the working screw 6. The end of the working slide bar 8 away from the working slide bar 7 is connected to a placement frame 9 through a rotating component. An auxiliary chamber is provided at the end of the working slide bar 8 close to the placement frame 9, and a small motor 10 is provided in the auxiliary chamber. The output end of the small motor 10 is fixedly connected to the rotating component, so that the staff can remotely control the rotation of the placement frame 9. A plurality of fixing devices are also provided in the placement frame 9, including a working box 11 fixedly connected to the side wall of the placement frame 9, a working slide plate 12 is fixedly connected in the working box 11, and a lifting slide bar 13 is slidably connected to the working slide plate 12. The lifting slide bar 13 is arranged through the working box 11, and the end of the lifting slide bar 13 away from the working slide plate 12 is fixedly connected to a working pressure plate 14, and the working pressure plate 14 is made of rubber. The working pressure plate 14 is arranged in conjunction with the placement frame 9 to prevent damage to the circuit board.

[0023] A working shaft 15 is also rotatably connected in the working box 11, and the working shaft 15 passes through the placement frame 9 and the working box 11. A rack 16 is provided on the lifting slide 13, and a working gear 17 is fixedly connected to the working shaft 15. The working gear 17 and the rack 16 are meshed, so that the lifting slide 13 can be driven to slide by the gear transmission by rotating the working shaft 15. An angle adjustment device is also provided on the working shell 1, and the angle adjustment device includes a threaded sleeve 18 rotatably connected to the working shell 1, and the threaded sleeve 18 has an inner thread. A lifting screw 19 is connected, and one end of the lifting screw 19 away from the threaded sleeve 18 is fixedly connected to the spray gun 5. A limiting assembly is also provided in the working chamber 3, and the limiting assembly includes a limiting plate 20 fixedly connected to the inner wall of the working chamber 3. The lifting screw 19 slides through the limiting plate 20, and a limiting block is provided on the limiting plate 20. A limiting groove is provided on the lifting screw 19. The limiting block and the limiting groove are arranged in cooperation with each other, thereby limiting the lifting screw 19 so that it can only slide up and down along the direction of the threaded sleeve 18.

[0024] During the use of the utility model, the staff first places the circuit board to be sprayed into the placement frame 9, and then rotates the working shaft 15 to rotate the working gear 17. Due to the characteristics of gear meshing, under the cooperation of the rack 16, the lifting slide block 13 will begin to slide downward along the working slide plate 12, thereby driving the working pressure plate 14 to fix the corners of the circuit board, thereby preventing the circuit board from sliding. Then the staff rotates the placement frame 9, repeats the above operation, fixes multiple corners of the circuit board, and then rotates the working screw 6, so that the working slide block 8 slides to the right under the limiting action of the working slide bar 7, thereby driving the placement frame 9 to move. When the staff sees from the transparent observation window that the circuit board has moved below the spray gun 5, the rotation of the working screw 6 can be stopped;

[0025] Then the staff starts the spray gun 5 to spray the three-proof glue onto the circuit board, and controls the start and stop of the small motor 10 to rotate the circuit board, so that the circuit board is fully sprayed. Then the staff rotates the threaded sleeve 18. Due to the characteristics of the threaded connection, the lifting screw 19 will slide downward under the limiting action of the limiting plate 20, thereby lifting the spray gun 5 and changing its angle with the cooperation of the working hinge 4, thereby spraying the edge of the circuit board and improving the spraying effect.

[0026] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A PCBA three-proof adhesive spraying device, comprising a working housing (1) with a plurality of fixed bases, characterized in that: The working shell (1) is provided with a transparent observation window, and the two side walls of the working shell (1) are provided with working openings (2). A working cavity (3) is provided in the working shell (1), and a working hinge (4) is fixedly connected to the inner wall of the working cavity (3). The other end of the working hinge (4) is fixedly connected to a spray gun (5). A working screw (6) is rotatably connected in the working cavity (3), and one end of the working screw (6) passes through the working shell (1). A working slide rod is also fixedly connected in the working cavity (3). (7), a working slider (8) is slidably connected to the working slide rod (7), the working slider (8) and the working screw rod (6) are threadedly connected, the end of the working slider (8) away from the working slide rod (7) is connected to a placement frame (9) through a rotating component, the end of the working slider (8) close to the placement frame (9) is provided with an auxiliary cavity, a small motor (10) is provided in the auxiliary cavity, the output end of the small motor (10) is fixedly connected to the rotating component, and a plurality of fixing devices are also provided in the placement frame (9).

2. A PCBA three-proof adhesive spraying equipment according to claim 1, characterized in that: The fixing device comprises a working box (11) fixedly connected to the side wall of the placement frame (9), a working slide (12) fixedly connected in the working box (11), a lifting slider (13) slidably connected to the working slide (12), the lifting slider (13) passing through the working box (11), the lifting slider (13) being fixedly connected to a working pressure plate (14) at one end away from the working slide (12), a working shaft (15) rotatably connected in the working box (11), the working shaft (15) passing through the placement frame (9) and the working box (11), a rack (16) being provided on the lifting slider (13), a working gear (17) being fixedly connected to the working shaft (15), the working gear (17) and the rack (16) being meshed, and an angle adjustment device being provided on the working housing (1).

3. A PCBA three-proof adhesive spraying equipment according to claim 2, characterized in that: The angle adjustment device comprises a threaded sleeve (18) rotatably connected to the working housing (1); a lifting screw (19) is threadedly connected to the inner thread of the threaded sleeve (18); an end of the lifting screw (19) away from the threaded sleeve (18) is fixedly connected to the spray gun (5); and a limit assembly is also provided in the working chamber (3).

4. A PCBA three-proof adhesive spraying equipment according to claim 3, characterized in that: The limiting assembly comprises a limiting plate (20) fixedly connected to the inner wall of the working chamber (3); the lifting screw (19) slides through the limiting plate (20); a limiting block is provided on the limiting plate (20); a limiting groove is provided on the lifting screw (19); the limiting block and the limiting groove are arranged in coordination.

5. The PCBA three-proof adhesive spraying equipment according to claim 1 is characterized in that: The working screw (6) is provided with a rotating handle, which is arranged in a disc shape and is arranged in coordination with the working screw (6).

6. A PCBA three-proof adhesive spraying equipment according to claim 2, characterized in that: The working pressure plate (14) is made of rubber material, and the working pressure plate (14) is arranged in conjunction with the placement frame (9).

Images