Spraying device

Abstract

The utility model relates to a spraying device which comprises a rack, a conveying mechanism arranged on the rack, a top spraying mechanism arranged above the conveying mechanism and a bottom spraying mechanism arranged below the conveying mechanism, the top spraying mechanism and the bottom spraying mechanism cooperate to clean the upper surface and the lower surface of a plate, a side face spraying pipeline is further arranged on the side face of the machine frame, the side face spraying pipeline faces the conveying mechanism, the side face spraying pipeline is detachably arranged on the machine frame, and the conveying mechanism is arranged on the side face of the machine frame. The side face spraying pipeline is used for spraying cleaning liquid to the conveying mechanism. The base material cleaning device has the effect of improving the cleaning efficiency of the base material.

Description

Technical Field

[0001] The present application relates to the field of plate cleaning, and in particular to a spraying device. Background Art

[0002] As the core component of electronic equipment, PCB (Printed Circuit Board) mainly provides electrical connection and support between electronic components to ensure the stable operation of the circuit. Its application range is extremely wide, covering many fields such as communication equipment, medical equipment, industrial control, automotive electronics, home appliances, computers and Internet of Things devices. It is an indispensable part of modern electronic technology.

[0003] PCBs are typically made of materials such as phenolic resin (FR-4), glass fiber reinforced plastic (GPP), polytetrafluoroethylene (PTFE), or composite materials. After the PCB design is completed and put into production, it needs to be brushed by a brushing machine. The surface of the substrate after brushing contains brush debris or other foreign matter. To minimize the impact on subsequent production processes, the substrate must be cleaned after brushing.

[0004] Therefore, there is a cleaning device (equipped with a brushing device, that is, the substrate is brushed by the brushing device and then cleaned by the cleaning device), which transports the substrate through a conveyor roller. When the substrate arrives in the cleaning device, the spray systems located at the upper and lower ends of the conveyor roller start to clean the surface of the substrate at the same time, thereby removing debris or other foreign matter on the surface of the substrate along the surface of the substrate, so as to reduce the probability of scratches or indentations on the substrate due to failure to remove debris or foreign matter on the surface of the substrate. However, in actual operation, the cleaning liquid sprayed by the spray system at the upper end of the conveyor roller rushes toward the surface of the substrate in a vertical direction. When the cleaning liquid reaches the surface of the substrate, it is quickly dispersed by pressure, so that the pressure on different parts of the surface of the substrate is different. When the conveyor roller sends the substrate along the cleaning device, there will still be a small amount of foreign matter that cannot be flushed down along the surface of the substrate, which has a certain impact on subsequent processing steps. There is room for improvement. Utility Model Content

[0005] In order to improve the cleaning efficiency of a substrate, the present application provides a spray device.

[0006] The present application provides a spraying device that adopts the following technical solution:

[0007] A spraying device, comprising a frame and a conveying mechanism arranged on the frame. The conveying mechanism is used for conveying a board. There is a top spraying mechanism arranged above the conveying mechanism and a bottom spraying mechanism arranged below the conveying mechanism. The top spraying mechanism and the bottom spraying mechanism cooperate to clean the upper surface and the lower surface of the board. A side spraying pipeline is also arranged on the side of the frame. The side spraying pipeline faces the conveying mechanism. The side spraying pipeline is detachably arranged on the frame. The side spraying pipeline is used for spraying cleaning liquid onto the conveying mechanism.

[0008] By adopting the above technical solution, the conveying process of the board is realized through the conveying mechanism. The top spraying mechanism and the bottom spraying mechanism cooperate to wash the board on the conveying mechanism, achieving the purpose of cleaning the board. At the same time, since the side spraying pipeline is arranged on the side of the frame, the board is washed again through the side spraying pipeline, so that the foreign matters on the surface of the board are washed off along the surface of the board in the flushing direction of the side spraying pipeline, playing a positive guiding role in reducing the foreign matters accumulated on the surface of the board after flushing.

[0009] Preferably, the side spraying pipeline is arranged in the same direction as the conveying direction of the conveying mechanism. A plurality of nozzles are distributed at the same interval along the length direction of the side spraying pipeline. The nozzles are detachably connected to the side spraying pipeline.

[0010] By adopting the above technical solution, a plurality of nozzles wash the board on the conveying mechanism at the same time, which is beneficial to increasing the flushing area when the nozzles flush the surface of the board, so that all parts of the surface of the board can be flushed during the conveying process, and the coverage area of the nozzles flushing the surface of the board is improved.

[0011] Preferably, a plurality of threaded holes are formed along the length direction of the side spraying pipeline. The threaded holes are set as British standard pipe threads. The nozzles are threadedly connected to the threaded holes.

[0012] By adopting the above technical solution, the nozzle and the side spraying pipeline are connected by British standard pipe threads. The British standard pipe threads themselves have the advantage of a large pitch, so that the thread has a relatively high tooth profile height, which is beneficial to enhancing the bearing capacity of the threaded holes and reducing the probability that the cooperation between the nozzle and the side spraying pipeline becomes loose due to the excessive pressure borne by the nozzle when the nozzle is installed on the side spraying pipeline.

[0013] Preferably, the water pressure of the cleaning liquid sprayed by the top spraying mechanism is greater than the water pressure of the cleaning liquid sprayed by the bottom spraying mechanism.

[0014] By adopting the above technical solution, since the water pressure of the cleaning liquid sprayed by the top spraying mechanism is greater than that of the bottom spraying mechanism, the pressure provided by the cleaning liquid sprayed by the top spraying mechanism enables the sheet to stay stably on the conveying mechanism, reducing the probability of the sheet shifting or sliding along the conveying mechanism during the conveying process by the conveying mechanism.

[0015] Preferably, a fixing seat is provided on the side wall of the frame. The fixing seat includes a base and a cover plate. The cover plate is detachably connected to the base. When the cover plate covers the base, a cavity adapted to the external contour of the side spraying pipeline is formed between the cover plate and the base, and one end of the side spraying pipeline is located in the cavity.

[0016] By adopting the above technical solution, since the base and the cover plate are detachably connected, and a cavity is formed between the cover plate and the base, the fixing effect on the side spraying pipeline can be achieved through the cooperation of the base and the cover plate. At the same time, it is also convenient to change the inclination angle of the side spraying pipeline along the frame to meet the cleaning requirements of sheets of different sizes.

[0017] Preferably, a fixing sleeve is provided on the side wall of the frame. The other end of the side spraying pipeline is located in the fixing sleeve, and the fixing sleeve is used to limit the side spraying pipeline.

[0018] By adopting the above technical solution, the other end of the side spraying pipeline is fixed by the fixing sleeve, reducing the probability that the other end of the pipeline shakes due to excessive pressure of the cleaning liquid in the side spraying pipeline while the other end of the pipeline is in an unfixed state, and improving the stability of the side spraying pipeline when it is fixed on the frame.

[0019] Preferably, a limiting block is provided on the side of the fixing sleeve that abuts against the side wall of the frame, and the limiting block is in clamping fit with the frame.

[0020] By adopting the above technical solution, the clamping effect on the fixing sleeve is achieved through the cooperation of the fixing sleeve and the limiting block, facilitating the disassembly of the fixing sleeve to facilitate the replacement of fixing sleeves of different sizes.

[0021] Preferably, the nozzle is set as a universal pipe.

[0022] By adopting the above technical solution, the angle of the cleaning liquid sprayed by the pipeline can be adjusted at any time through the universal pipe without adjusting the side spraying pipeline, and the operation is simple.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. By flushing the board again through the side spray pipeline, the foreign matters on the board surface are flushed off along the board surface in the flushing direction of the side spray pipeline, which plays a positive guiding role in reducing the foreign matters accumulated on the board surface after flushing;

[0025] 2. The fixation of the side spray pipeline can be realized through the cooperation of the base and the cover plate. At the same time, it is also convenient to change the inclination angle of the side spray pipeline along the rack to meet the cleaning requirements of boards of different sizes;

[0026] 3. The angle of the cleaning liquid sprayed from the pipeline can be adjusted at any time through the universal pipe, and the operation is simple. Description of the Drawings

[0027] Figure 1 It is a schematic diagram of the overall structure of a spray device according to an embodiment of the present application.

[0028] Figure 2 It is a schematic diagram of the cooperation relationship between the side spray pipeline of a spray device and the fixed seat and the fixed sleeve according to an embodiment of the present application.

[0029] Figure 3 It is a schematic diagram of the water flow direction when the side spray mechanism, the bottom spray mechanism and the side spray pipeline of a spray device are in the working state according to an embodiment of the present application (the dotted arrow indicates the water flow direction).

[0030] Figure 4 It is a schematic diagram of the cooperation relationship between the side spray pipeline and the universal pipe of a spray device in another embodiment of the present application

[0031] Description of the Reference Numerals: 1, rack; 2, conveying mechanism; 21, carrying roller; 3, top spray mechanism; 4, bottom spray mechanism; 5, side spray pipeline; 6, nozzle; 7, threaded hole; 8, fixed seat; 81, base; 82, cover plate; 9, cavity; 10, limit block; 11, universal pipe; 12, fixed sleeve; 13, spray pipe. Detailed Description of the Embodiment

[0032] The following is a further detailed description of the present application in conjunction with the attached Figures 1-4 to further illustrate the present application in detail.

[0033] An embodiment of the present application discloses a spray device. Refer to Figure 1 and Figure 2 , a spray device includes a rack 1 and a conveying mechanism 2 arranged on the rack 1. The conveying mechanism 2 is used for conveying the board, a top spray mechanism 3 arranged above the conveying mechanism 2, and a bottom spray mechanism 4 arranged below the conveying mechanism 2. The top spray mechanism 3 and the bottom spray mechanism 4 cooperate to clean the upper surface and the lower surface of the board.

[0034] Specifically, one end of the frame 1 is the loading end, and the other end is the unloading end. The conveying mechanism 2 includes a plurality of carrying rollers 21 rotatably carried on the frame 1. The driving of the carrying rollers 21 to rotate along the frame 1 is realized through a motor pulley drive assembly, so as to achieve the purpose of rotating the sheet along the rotation direction of the carrying rollers 21. Here, the pulley drive assembly is a constant-power transmission assembly. At the same time, the top spraying mechanism 3 and the bottom spraying mechanism 4 are spraying components of an existing cleaning device, and their specific composition and working principle will not be elaborated here.

[0035] Furthermore, the components of the top spraying mechanism 3 and the bottom spraying mechanism 4 are the same. Taking the top spraying mechanism 3 as an example for illustration. The top spraying mechanism 3 includes a plurality of spray pipes 13. The plurality of spray pipes 13 are arranged at equal intervals along the length direction of the frame 1. At the same time, the water inlets of the plurality of spray pipes 13 are connected to the water tank of the cleaning device, and the plurality of spray pipes 13 in the bottom spraying mechanism 4 are located below the carrying rollers 21.

[0036] Thus, through the cooperation of the plurality of carrying rollers 21, the purpose of conveying the sheet is achieved. At the same time, through the coordinated cooperation of the spray pipes 13 of the top spraying mechanism 3 and the bottom spraying mechanism 4, the sheet on the carrying rollers 21 is flushed, so as to achieve the purpose of cleaning the sheet.

[0037] At the same time, a side spraying pipeline 5 is also arranged on the side of the frame 1. The side spraying pipeline 5 faces the conveying mechanism 2. The side spraying pipeline 5 is detachably arranged on the frame 1. The side spraying pipeline 5 is used to spray cleaning liquid onto the conveying mechanism 2.

[0038] Correspondingly, the water pressure of the cleaning liquid sprayed by the top spraying mechanism 3 is greater than the water pressure of the cleaning liquid sprayed by the bottom spraying mechanism 4. The purpose is that because the water pressure of the cleaning liquid sprayed by the top spraying mechanism 3 is greater than the water pressure of the cleaning liquid sprayed by the bottom spraying mechanism 4, by using the pressure provided by the cleaning liquid sprayed by the top spraying mechanism 3, the sheet can stay stably on the carrying rollers 21, reducing the probability of the situation that the sheet is displaced or slides along the carrying rollers 21 during the conveying process.

[0039] The implementation principle of a spraying device in an embodiment of the present application is as follows: The conveying process of the sheet is realized through the conveying mechanism 2. The top spraying mechanism 3 and the bottom spraying mechanism 4 cooperate to flush the sheet on the conveying mechanism 2, so as to achieve the purpose of cleaning the sheet. At the same time, because the side spraying pipeline 5 is arranged on the side of the frame 1, the sheet is flushed again through the side spraying pipeline 5, so that the foreign matter on the surface of the sheet falls along the surface of the sheet in the flushing direction of the side spraying pipeline 5, playing a positive guiding role in reducing the foreign matter accumulated on the surface of the flushed sheet.

[0040] Refer to Figure 2 and Figure 3, the side spray pipe 5 is arranged in the same direction as the conveying direction of the conveying mechanism 2. A number of nozzles 6 are distributed at equal intervals along the length direction of the side spray pipe 5. The nozzles 6 are detachably connected to the side spray pipe 5.

[0041] Specifically, the inside of the side spray pipe 5 is hollow, and one end of the side spray pipe 5 is open, and the other end is in a closed state. One end of the side spray pipe 5 that is open is connected to the water tank of the cleaning device through a corrugated pipe, so as to achieve the purpose of supplying water to the side spray pipe 5. By simultaneously flushing the plates on the conveying mechanism 2 through a number of nozzles 6, it is beneficial to increase the flushing area when the nozzles 6 flush the surface of the plates, so that all parts of the plate surface can be flushed during the conveying process, and the coverage area of the nozzles 6 flushing the plate surface is increased.

[0042] Furthermore, a number of threaded holes 7 are provided along the length direction of the side spray pipe 5. The threaded holes 7 are set as British standard pipe threads. The nozzles 6 are threadedly connected to the threaded holes 7. The number of the threaded holes 7 provided along the length direction of the side spray pipe 5 can be increased or decreased according to the actual length of the side spray pipe 5 and the cleaning requirements. Since the function of any one of the threaded holes 7 is the same, the number is not limited here.

[0043] Thus, the nozzles 6 are connected to the side spray pipe 5 through British standard pipe threads. The British standard pipe threads themselves have the advantage of a large pitch, so that the thread has a relatively high tooth profile height, which is beneficial to enhancing the bearing capacity of the threaded holes 7 and reducing the probability that the nozzles 6 and the side spray pipe 5 are loosened due to excessive pressure borne by the nozzles 6 when the nozzles 6 are installed on the side spray pipe 5.

[0044] Refer to Figure 1 and Figure 2 , a fixed seat 8 is provided on the side wall of the frame 1. The fixed seat 8 includes a base 81 and a cover plate 82. The cover plate 82 is detachably connected to the base 81. When the cover plate 82 covers the base 81, a cavity 9 adapted to the external contour of the side spray pipe 5 is formed between the cover plate 82 and the base 81. One end of the side spray pipe 5 is located in the cavity 9.

[0045] Specifically, the external contour of the base 81 is arranged in a cuboid shape. The base 81 is fixed to the side wall of the frame 1 through bolts. At the same time, the cover plate 82 and the base 81 are connected through bolts along the thickness direction, so as to facilitate the adjustment of the fitting gap between the cover plate 82 and the base 81. And an arc-shaped groove is provided along the length direction on the surface of the base 81 that is away from the contact surface with the frame 1. Correspondingly, an arc-shaped groove is provided along the length direction on the surface of the cover plate 82 that is in contact with the base 81, thereby forming the cavity 9.

[0046] Therefore, when it is necessary to fix the side spray pipeline 5 along the rack 1, by loosening the bolts connecting the cover plate 82 and the base 81, the cover plate 82 can be separated from the base 81 to increase the cavity 9, facilitating the placement of the side spray pipeline 5 into the cavity 9. Subsequently, tightening the bolts again can fasten the side spray pipeline 5 to the rack 1.

[0047] Meanwhile, when it is necessary to adjust the angle of deflection of the side spray pipeline 5 along the rack 1, the bolts cooperating between the cover plate 82 and the base 81 can also be loosened to rotate the inclination angle of the side spray pipeline 5 along the rack 1, meeting the cleaning requirements of plates of different sizes.

[0048] On the other hand, referring to Figure 2 , a fixing sleeve 12 is provided on the side wall of the rack 1, and the other end of the side spray pipeline 5 is located within the fixing sleeve 12. The fixing sleeve 12 is used to limit the side spray pipeline 5. By fixing the other end of the side spray pipeline 5 with the fixing sleeve 12, the probability of the situation that the other end of the pipeline shakes due to the excessive pressure of the cleaning liquid in the side spray pipeline 5 while the other end of the pipeline is in an unfixed state is reduced, improving the stability when the side spray pipeline 5 is fixed to the rack 1.

[0049] Specifically, a limiting block 10 is provided on the side of the fixing sleeve 12 in contact with the side wall of the rack 1, and the limiting block 10 is in snap-fit with the rack 1. Among them, a clamping groove is provided on the rack 1 in the vertical direction. Through the cooperation of the clamping groove and the limiting block 10, the purpose of clamping the fixing sleeve 12 to the rack 1 is achieved, and at the same time, it is also convenient to maintain or replace the fixing sleeve 12, enabling it to meet the fixing requirements of side spray pipelines 5 of different sizes.

[0050] In another embodiment, referring to Figure 4 , the nozzle 6 is set as a universal pipe 11, and the fixed end of the universal pipe 11 is threadedly connected to the side spray pipeline 5. Due to the characteristic that the rotation direction of the universal pipe 11 is not restricted, when it is necessary to adjust the spatial position relationship between the water outlet of the universal pipe 11 and the carrying roller 21, only the universal pipe 11 needs to be twisted, without the need to adjust the installation position of the side spray pipeline 5 along the rack 1.

[0051] The above are all the preferred embodiments of the present application, and the protection scope of the present application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A spraying device, comprising a frame (1) and a conveying mechanism (2) arranged on the frame (1), the conveying mechanism (2) being used for conveying a plate, a top spraying mechanism (3) arranged above the conveying mechanism (2), and a bottom spraying mechanism (4) arranged below the conveying mechanism (2), the top spraying mechanism (3) and the bottom spraying mechanism (4) cooperating to clean the upper surface and the lower surface of the plate, characterized in that: A side spray pipeline (5) is also arranged on the side of the frame (1), the side spray pipeline (5) faces the conveying mechanism (2), the side spray pipeline (5) is detachably arranged on the frame (1), and the side spray pipeline (5) is used for spraying cleaning liquid onto the conveying mechanism (2).

2. The spray device according to claim 1, characterized in that: The side spray pipeline (5) is arranged in the same direction as the conveying direction of the conveying mechanism (2), and a plurality of nozzles (6) are distributed at equal intervals along the length direction of the side spray pipeline (5), and the nozzles (6) are detachably connected to the side spray pipeline (5).

3. The spray device according to claim 2, characterized in that: A plurality of threaded holes (7) are formed in the side spray pipeline (5) along the length direction, the threaded holes (7) are set as British standard pipe threads, and the nozzles (6) are threadedly connected to the threaded holes (7).

4. A spray device according to claim 1, characterized in that: The water pressure of the cleaning liquid sprayed by the top spray mechanism (3) is greater than the water pressure of the cleaning liquid sprayed by the bottom spray mechanism (4).

5. A spray device according to claim 1, wherein: A fixing seat (8) is arranged on the side wall of the frame (1), the fixing seat (8) includes a base (81) and a cover plate (82), the cover plate (82) is detachably connected to the base (81), and when the cover plate (82) covers the base (81), a cavity (9) adapted to the external contour of the side spray pipeline (5) is formed between the cover plate (82) and the base (81), and one end of the side spray pipeline (5) is located in the cavity (9).

6. The spray device according to claim 5, characterized in that: A fixing sleeve (12) is arranged on the side wall of the frame (1), the other end of the side spray pipeline (5) is located in the fixing sleeve (12), and the fixing sleeve (12) is used for limiting the side spray pipeline (5).

7. A spraying device according to claim 6, characterized in that: A limiting block (10) is arranged on the side of the fixing sleeve in contact with the side wall of the frame (1), and the limiting block (10) is in clamping fit with the frame (1).

8. The spray device according to claim 2, characterized in that: The nozzle (6) is set as a universal pipe (11).

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