A cleaning device for tin-spraying circuit board production

Abstract

The invention discloses a cleaning device for tin-spraying circuit board production, which belongs to the field of tin-spraying circuit board cleaning devices, comprising a cleaning device main body, a circuit board conveyor belt installed on the cleaning device main body, a plurality of fixed structures symmetrically installed in pairs on the outer surface of the circuit board conveyor belt, the fixed structure comprising a fixed installation rod, a clamping spring structure, an anti-slip baffle, a telescopic connecting column and a fixed clamping plate, the clamping spring structure and the anti-slip baffle are both installed in the fixed installation rod, the fixed clamping plate is located on the inner side of the fixed installation rod, the telescopic connecting column passes through the inner side wall of the fixed installation rod to connect the fixed clamping plate and the anti-slip baffle together, and by arranging the fixed structure on the circuit board conveyor belt, when cleaning the circuit board main body, the circuit board main body can be placed on the circuit board conveyor belt and fixedly cleaned using the fixed structure, so that the circuit board main body will not move when being cleaned, and the circuit board main body can be effectively cleaned.

Description

Technical Field

[0001] The invention relates to the field of tin-spraying circuit board cleaning devices, and in particular to a cleaning device for tin-spraying circuit board production. Background Art

[0002] Printed circuit boards can be divided into tin-spraying boards, gold-plated boards, silver-plated boards, OSP boards, etc. from the production process. Among them, tin-spraying boards are a common type of PCB boards, generally multi-layer high-precision PCB boards, which are used in various electronic equipment, communication products, computers, medical equipment, aerospace and other fields and products. Tin-spraying is a step and process flow in the production process of PCB boards. Specifically, the PCB board is immersed in a molten solder pool so that all exposed copper surfaces will be covered with solder, and then the excess solder on the PCB board is removed by a hot air cutter. Because the surface of the circuit board after tin-spraying is the same material as the solder paste, the welding strength and reliability are better. Before the PCB board is tin-sprayed, it is necessary to ensure that the PCB board is kept clean to avoid dust and debris adhering to the PCB board and affecting the tin-spraying process of the PCB board, so a cleaning device is needed to clean the PCB board.

[0003] The existing patent number is CN202021894027.7, which is a cleaning device for tin-spraying circuit board production. Although it improves the efficiency and convenience of circuit board cleaning to a certain extent, it still has many defects. First, since the circuit board is only placed on a rotating rolling shaft for cleaning, it cannot be fixed, which makes the circuit board easy to move during the cleaning process of the telescopic brush head, and thus the circuit board cannot be effectively cleaned. Secondly, since the circuit board is first rubbed and cleaned by the telescopic brush head and then manually placed on the conveyor belt for dust removal and cleaning, the dust peeled off by the telescopic brush head will fall on the circuit board for a second time. Finally, when the circuit board is manually placed on the conveyor belt for dust removal and cleaning, the dust that falls on the circuit board for the second time cannot be effectively blown away by a hair dryer alone, which makes the cleaning effect of the circuit board poor. Therefore, a cleaning device for tin-spraying circuit board production with high cleaning efficiency and good cleaning effect is needed. Summary of the invention

[0004] The main purpose of the present invention is to provide a cleaning device for tin-spraying circuit board production, which can effectively solve the problems in the background technology.

[0005] To achieve the above object, the technical solution adopted by the present invention is:

[0006] A cleaning device for tin-spraying circuit board production comprises a cleaning device main body, the cleaning device main body is equipped with a circuit board conveyor belt, and a plurality of fixed structures are symmetrically installed in pairs on the outer surface of the circuit board conveyor belt, the fixed structure comprises a fixed mounting rod, a clamping spring structure, an anti-slip baffle, a telescopic connecting column and a fixed clamping plate, the clamping spring structure and the anti-slip baffle are both installed in the fixed mounting rod, the fixed clamping plate is located on the inner side of the fixed mounting rod, the telescopic connecting column passes through the inner side wall of the fixed mounting rod to connect the fixed clamping plate and the anti-slip baffle together, the anti-slip baffle and the telescopic connecting column can slide inward and outward on the fixed mounting rod, the upper end of the cleaning device main body is equipped with a cleaning and disinfection bin structure, two cleaning brush rollers are rotatably installed in the cleaning and disinfection bin structure, a negative pressure dust suction device is installed at the upper end of the cleaning and disinfection bin structure, a dust collecting device is installed in the cleaning and disinfection bin structure and between the two cleaning brush rollers, and the dust collecting device is connected to the negative pressure dust suction device.

[0007] Preferably, a plurality of supporting foot structures are symmetrically mounted on the lower end of the cleaning device body, the supporting foot structures are fixedly mounted on the lower end of the cleaning device body by bolts, and the circuit board conveyor belt is rotatably mounted on the cleaning device body.

[0008] Preferably, a circuit board body is placed on the circuit board conveyor belt, and the circuit board body is clamped and fixed by a fixing structure symmetrically arranged on the outer surface of the circuit board conveyor belt.

[0009] Preferably, the fixed mounting rod on the fixed structure is fixedly mounted on the outer surface of the circuit board conveyor belt by adhesive, a mounting cavity is provided inside the fixed mounting rod, a telescopic through hole is provided at the inner end of the fixed mounting rod, and the telescopic through hole connects the inner end of the fixed mounting rod with the mounting cavity.

[0010] Preferably, the clamping spring structure and the anti-slip baffle on the fixed structure are both located in an installation cavity opened in the fixed mounting rod, and the anti-slip baffle can slide in the installation cavity, and the telescopic connecting column passes through the telescopic through hole opened at the inner end of the fixed mounting rod to connect the fixed clamping plate on the inner side of the fixed mounting rod and the anti-slip baffle in the fixed mounting rod together, and the telescopic connecting column is fixedly connected to the anti-slip baffle and the fixed clamping plate, and the inner end of the fixed clamping plate contacts the inner end of the circuit board body.

[0011] Preferably, the cleaning and disinfection chamber structure is fixedly installed on the upper end of the cleaning equipment body by bolts, and three disinfection ultraviolet lamps are evenly installed on the upper inner wall of the cleaning and disinfection chamber structure. The three disinfection ultraviolet lamps are all located behind the cleaning brush roller. The disinfection ultraviolet lamps are fixedly installed on the upper inner wall of the cleaning and disinfection chamber structure by bolts, and a driving motor is installed in the cleaning and disinfection chamber structure.

[0012] Preferably, the negative pressure dust suction device is fixedly installed on the upper end of the cleaning and disinfection chamber structure by bolts, and the dust collecting device connected to the negative pressure dust suction device consists of a trapezoidal channel, a connecting channel and a filter screen structure, the connecting channel is installed on the upper end of the trapezoidal channel, the filter screen structure is installed on the inner wall of the trapezoidal channel, and the filter screen structure is close to the opening position of the lower end of the trapezoidal channel, the trapezoidal channel and the connecting channel are an integrally formed structure, and the filter screen structure is fixedly installed on the inner wall of the trapezoidal channel by bolts.

[0013] Preferably, the cleaning brush roller consists of a rotating roller and cleaning bristles, and the cleaning bristles are fixedly mounted on the outer wall of the rotating roller. The cleaning brush roller can be driven by a driving motor arranged in the cleaning and disinfection chamber structure to rotate, and the cleaning brush roller on the front side rotates clockwise, and the cleaning brush roller on the rear side rotates counterclockwise.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] By arranging a fixed structure on the circuit board conveyor belt, when cleaning the circuit board body, the circuit board body can be placed on the circuit board conveyor belt and fixedly cleaned using the fixed structure, so that the circuit board body will not move when being cleaned, and the circuit board body can be effectively cleaned; by installing the cleaning brush roller and the dust collecting device together, and connecting the dust collecting device with the negative pressure dust suction device, when cleaning the circuit board body, the cleaning brush roller can be used to frictionally clean the circuit board body, while the negative pressure dust suction device and the dust collecting device can be used to absorb and collect the dust peeled off by the cleaning brush roller, so that the dust peeled off by the cleaning brush roller can be prevented from falling on the circuit board body for the second time, and finally the cleaning effect of the circuit board body can be further improved, and at the same time, the cleaning efficiency of the circuit board body can be improved, and the operator's workload can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 For the present invention Figure 1 A magnified view of point A;

[0018] Figure 3 It is a schematic diagram of the positional relationship of the cleaning and disinfection chamber structure, the cleaning brush roller and the dust collecting device of the present invention;

[0019] Figure 4 It is a schematic structural diagram of the dust collecting device of the present invention;

[0020] Figure 5 A partial cross-sectional view of the fixing structure of the present invention;

[0021] Figure 6 It is a schematic structural diagram of the cleaning brush roller of the present invention.

[0022] In the figure: 1. Cleaning equipment body; 2. Fixed structure; 3. Cleaning and disinfection chamber structure; 4. Negative pressure dust suction device; 5. Cleaning brush roller; 6. Rotating roller; 7. Dust collecting device; 8. Support foot structure; 9. Circuit board conveyor belt; 10. Circuit board body; 11. Fixed mounting rod; 12. Clamping spring structure; 13. Anti-slip baffle; 14. Telescopic connecting column; 15. Fixed splint; 16. Installation cavity; 17. Telescopic through hole; 18. Disinfection ultraviolet light lamp; 19. Trapezoidal channel; 20. Connecting channel; 21. Filter structure; 22. Cleaning brush bristles. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0024] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, a cleaning device for tin-spraying circuit board production includes a cleaning device body 1, a circuit board conveyor belt 9 is installed on the cleaning device body 1, a plurality of support foot structures 8 are symmetrically installed at the lower end of the cleaning device body 1, and the support foot structures 8 are fixedly installed at the lower end of the cleaning device body 1 by bolts, the circuit board conveyor belt 9 is rotatably installed on the cleaning device body 1, a circuit board body 10 is placed on the circuit board conveyor belt 9, and the circuit board body 10 is clamped and fixed by a fixing structure 2 symmetrically arranged on the outer surface of the circuit board conveyor belt 9, and a cleaning and disinfection chamber structure 3 is installed at the upper end of the cleaning device body 1, and the cleaning and disinfection chamber structure 3 is fixedly installed at the upper end of the cleaning device body 1 by bolts. Three disinfecting ultraviolet lamps 18 are evenly installed on the upper inner wall, and the three disinfecting ultraviolet lamps 18 are all located behind the cleaning brush roller 5. The disinfecting ultraviolet lamps 18 are fixed on the upper inner wall of the cleaning and disinfection chamber structure 3 by bolts. A driving motor is installed in the cleaning and disinfection chamber structure 3. When cleaning the circuit board main body 10, the circuit board main body 10 can be placed on the circuit board conveyor belt 9. As the circuit board conveyor belt 9 moves, the circuit board main body 10 will pass through the cleaning and disinfection chamber structure 3, and then the circuit board main body 10 will be cleaned and disinfected by the cleaning device and the disinfecting ultraviolet lamps 18 in the cleaning and disinfection chamber structure 3, and finally the cleaned circuit board main body 10 can be removed from the circuit board conveyor belt 9.

[0025] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 、 Figure 6As shown, a plurality of fixing structures 2 are symmetrically installed in pairs on the outer surface of the circuit board conveyor belt 9, and the fixing mounting rods 11 on the fixing structures 2 are fixedly installed on the outer surface of the circuit board conveyor belt 9 by adhesive, and a mounting cavity 16 is provided inside the fixing mounting rod 11, and a telescopic through hole 17 is provided at the inner end of the fixing mounting rod 11, and the telescopic through hole 17 connects the inner end of the fixing mounting rod 11 with the mounting cavity 16, and the fixing structure 2 includes a fixing mounting rod 11, a clamping spring structure 12, an anti-slip baffle 13, a telescopic connecting column 14 and a fixing clamping plate 15, and the clamping spring structure 12 and the anti-slip baffle 13 are both installed in the fixing mounting rod 11, and the fixing clamping plate 15 is located on the inner side of the fixing mounting rod 11, and the telescopic connecting column 14 passes through the inner side wall of the fixing mounting rod 11 The body connects the fixed splint 15 and the anti-slip baffle 13 together, and the anti-slip baffle 13 and the telescopic connecting column 14 can slide inside and outside on the fixed mounting rod 11. The clamping spring structure 12 and the anti-slip baffle 13 on the fixed structure 2 are both located in the mounting cavity 16 opened in the fixed mounting rod 11, and the anti-slip baffle 13 can slide in the mounting cavity 16. The telescopic connecting column 14 passes through the telescopic through hole 17 opened at the inner end of the fixed mounting rod 11 to connect the fixed splint 15 located on the inner side of the fixed mounting rod 11 and the anti-slip baffle 13 located in the fixed mounting rod 11 together. The telescopic connecting column 14 is fixedly connected to the anti-slip baffle 13 and the fixed splint 15. The inner end of the fixed splint 15 contacts the inner end of the circuit board body 10, and the upper surface of the cleaning and disinfection chamber structure 3 A negative pressure dust suction device 4 is installed at the end, a dust collecting device 7 is installed in the cleaning and disinfection chamber structure 3 and between the two cleaning brush rollers 5, the dust collecting device 7 is connected to the negative pressure dust suction device 4, the negative pressure dust suction device 4 is fixedly installed on the upper end of the cleaning and disinfection chamber structure 3 by bolts, the dust collecting device 7 connected to the negative pressure dust suction device 4 is composed of a trapezoidal channel 19, a connecting channel 20 and a filter screen structure 21, the connecting channel 20 is installed at the upper end of the trapezoidal channel 19, the filter screen structure 21 is installed on the inner wall of the trapezoidal channel 19, and the filter screen structure 21 is close to the lower end opening position of the trapezoidal channel 19, the trapezoidal channel 19 and the connecting channel 20 are an integrated structure, the filter screen structure 21 is fixedly installed on the inner wall of the trapezoidal channel 19 by bolts, the cleaning and disinfection chamber structure 3 Two cleaning brush rollers 5 are installed in the inner rotation, and the cleaning brush roller 5 is composed of a rotating roller 6 and cleaning bristles 22. The cleaning bristles 22 are fixedly installed on the outer wall of the rotating roller 6. The cleaning brush roller 5 can be driven by a driving motor arranged in the cleaning and disinfection chamber structure 3 to rotate. The cleaning brush roller 5 on the front side rotates clockwise, and the cleaning brush roller 5 on the rear side rotates counterclockwise. By arranging a fixed structure 2 on the circuit board conveyor belt 9, when cleaning the circuit board body 10, the circuit board body 10 can be placed on the circuit board conveyor belt 9 and fixedly cleaned using the fixed structure 2, so that the circuit board body 10 will not move when being cleaned, and the circuit board body 10 can be effectively cleaned. By installing the cleaning brush roller 5 and the dust collecting device 7 together,At the same time, the dust collecting device 7 is connected to the negative pressure dust suction device 4. When cleaning the circuit board body 10, the cleaning brush roller 5 can be used to rub and clean the circuit board body 10, while the negative pressure dust suction device 4 and the dust collecting device 7 can be used to absorb and collect the dust peeled off by the cleaning brush roller 5, so as to prevent the dust peeled off by the cleaning brush roller 5 from falling on the circuit board body 10 for the second time, and finally the cleaning effect of the circuit board body 10 can be further improved, and the cleaning efficiency of the circuit board body 10 can also be improved, and the operator's workload can be reduced.

[0026] It should be noted that the present invention is a cleaning device for tin-spraying circuit board production. When cleaning the circuit board body 10, the circuit board body 10 can be placed on the circuit board conveyor belt 9, and at the same time, the circuit board body 10 is placed between the symmetrically arranged fixed structures 2, and then under the push of the clamping spring structure 12, the circuit board body 10 is clamped and fixed by the fixed clamping plate 15, and then with the rotation of the circuit board conveyor belt 9, the circuit board body 10 will be sent into the cleaning and disinfection warehouse structure 3. At this time, the circuit board body 10 will be rubbed and cleaned by the rotating cleaning brush roller 5. Since the circuit board body 10 is fixed by the fixed structure 2, the circuit board body 10 will not be pushed by the cleaning brush roller 5. At this time, the cleaning brush roller 5 on the front side rotates clockwise, and the cleaning brush roller 5 on the rear side rotates counterclockwise, so that the dust on the circuit board body 10 peeled off by the two cleaning brush rollers 5 , it will move to the dust collecting device 7 between the two cleaning brush rollers 5. At the same time, the suction force generated by the operation of the negative pressure dust suction device 4 will collect the dust lifted by the cleaning brush roller 5 through the dust collecting device 7, thereby preventing the dust from falling on the circuit board body 10 for a second time. When the circuit board body 10 is cleaned, it will pass under the disinfection ultraviolet light lamp 18, so that the circuit board body 10 will be disinfected and sterilized. Finally, the circuit board body 10 after cleaning and disinfection will be moved out of the cleaning and disinfection chamber structure 3. At this time, the circuit board body 10 can be removed from between the two symmetrically arranged fixed structures 2. When disassembling the circuit board body 10, the fixed clamping plate 15 on the fixed structure 2 can be pushed outward, so that the fixed clamping plate 15 is out of contact with the circuit board body 10, and when the fixed clamping plate 15 is pushed outward, the clamping spring structure 12 will be compressed by the anti-detachment baffle 13.

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for a person skilled in the art to modify the technical solutions described in the aforementioned embodiments or to replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention. The protection scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A cleaning device for tin-spraying circuit board production, comprising a cleaning device body (1), on which a circuit board conveyor belt (9) is installed, characterized in that: A plurality of fixed structures (2) are symmetrically installed in pairs on the outer surface of the circuit board conveyor belt (9), wherein the fixed structure (2) comprises a fixed installation rod (11), a clamping spring structure (12), an anti-slip baffle (13), a telescopic connecting column (14) and a fixed clamping plate (15), wherein the clamping spring structure (12) and the anti-slip baffle (13) are both installed in the fixed installation rod (11), the fixed clamping plate (15) is located on the inner side of the fixed installation rod (11), and the telescopic connecting column (14) passes through the inner side wall of the fixed installation rod (11) to clamp the fixed clamping plate (15) and the anti-slip baffle (13) together. The baffles (13) are connected together, the anti-slip baffles (13) and the telescopic connecting column (14) can slide inward and outward on the fixed mounting rod (11), the upper end of the cleaning device body (1) is equipped with a cleaning and disinfection chamber structure (3), two cleaning brush rollers (5) are rotatably mounted in the cleaning and disinfection chamber structure (3), a negative pressure dust suction device (4) is installed at the upper end of the cleaning and disinfection chamber structure (3), a dust collecting device (7) is installed in the cleaning and disinfection chamber structure (3) and between the two cleaning brush rollers (5), and the dust collecting device (7) is connected to the negative pressure dust suction device (4); The cleaning and disinfection chamber structure (3) is fixedly mounted on the upper end of the cleaning device body (1) by means of bolts, three disinfection ultraviolet lamps (18) are evenly mounted on the upper inner wall of the cleaning and disinfection chamber structure (3), and the three disinfection ultraviolet lamps (18) are all located behind the cleaning brush roller (5). The disinfection ultraviolet lamps (18) are fixedly mounted on the upper inner wall of the cleaning and disinfection chamber structure (3) by means of bolts, and a driving motor is mounted inside the cleaning and disinfection chamber structure (3); The negative pressure dust suction device (4) is fixedly mounted on the upper end of the cleaning and disinfection chamber structure (3) by means of bolts; the dust collecting device (7) connected to the negative pressure dust suction device (4) is composed of a trapezoidal channel (19), a connecting channel (20) and a filter screen structure (21); the connecting channel (20) is mounted on the upper end of the trapezoidal channel (19); the filter screen structure (21) is mounted on the inner wall of the trapezoidal channel (19), and the filter screen structure (21) is close to the lower opening of the trapezoidal channel (19); the trapezoidal channel (19) and the connecting channel (20) are an integrally formed structure; and the filter screen structure (21) is fixedly mounted on the inner wall of the trapezoidal channel (19) by means of bolts; The cleaning brush roller (5) is composed of a rotating roller (6) and cleaning bristles (22). The cleaning bristles (22) are fixedly mounted on the outer wall of the rotating roller (6). The cleaning brush roller (5) can be driven by a driving motor arranged in the cleaning and disinfection chamber structure (3) to rotate. The cleaning brush roller (5) on the front side rotates clockwise, and the cleaning brush roller (5) on the rear side rotates counterclockwise.

2. A cleaning device for tin-spraying circuit board production according to claim 1, characterized in that: A plurality of supporting foot structures (8) are symmetrically mounted on the lower end of the cleaning device body (1); the supporting foot structures (8) are fixedly mounted on the lower end of the cleaning device body (1) by means of bolts; and the circuit board conveyor belt (9) is rotatably mounted on the cleaning device body (1).

3. A cleaning device for tin-spraying circuit board production according to claim 2, characterized in that: A circuit board body (10) is placed on the circuit board conveyor belt (9), and the circuit board body (10) is clamped and fixed by a fixing structure (2) symmetrically arranged on the outer surface of the circuit board conveyor belt (9).

4. A cleaning device for producing tin-sprayed circuit boards according to claim 3, characterized in that: The fixed installation rod (11) on the fixed structure (2) is fixedly installed on the outer surface of the circuit board conveyor belt (9) by means of adhesive, and a mounting cavity (16) is provided inside the fixed installation rod (11). A telescopic through hole (17) is provided at the inner end of the fixed installation rod (11), and the telescopic through hole (17) connects the inner end of the fixed installation rod (11) with the mounting cavity (16).

5. A cleaning device for producing tin-sprayed circuit boards according to claim 4, characterized in that: The clamping spring structure (12) and the anti-slip baffle (13) on the fixed structure (2) are both located in a mounting cavity (16) provided in the fixed mounting rod (11); the anti-slip baffle (13) can slide in the mounting cavity (16); the telescopic connecting column (14) passes through a telescopic through hole (17) provided at the inner end of the fixed mounting rod (11) to connect the fixed clamping plate (15) located on the inner side of the fixed mounting rod (11) and the anti-slip baffle (13) located in the fixed mounting rod (11); the telescopic connecting column (14) is fixedly connected to the anti-slip baffle (13) and the fixed clamping plate (15); the inner end of the fixed clamping plate (15) contacts the inner end of the circuit board body (10).

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