Circuit board surface spraying assembly

Abstract

The utility model relates to the technical field of printed circuit board processing, in particular to a circuit board surface spraying assembly. The device comprises a workbench, a cleaning box, a spraying box and a drying box are fixed to the top end of the workbench from left to right, a plurality of electric rollers are assembled in the workbench, and a dust collection mechanism used for cleaning the surface of the printed circuit board is arranged in the cleaning box. A spraying mechanism used for protecting the printed circuit board is arranged in the spraying box, and a baking mechanism used for drying the printed circuit board is arranged in the drying box. According to the circuit board surface spraying assembly provided by the utility model, dust on the surface of a printed circuit board is cleaned through the dust collection mechanism, so that protective paint can be well adhered to the surface of the printed circuit board, the adsorption effect of the protective paint is improved, and the protective paint on the surface of the printed circuit board is dried through the baking mechanism; and the adsorption efficiency of the protective paint and the printed circuit board is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of printed circuit board processing, in particular to a circuit board surface spraying component. Background Art

[0002] Circuit boards are known as: ceramic circuit boards, alumina ceramic circuit boards, aluminum nitride ceramic circuit boards, circuit boards, PCB boards, aluminum substrates, high-frequency boards, thick copper boards, impedance boards, PCBs, ultra-thin circuit boards, ultra-thin circuit boards, printed (copper etching technology) circuit boards, etc. Circuit boards miniaturize and visualize circuits, playing an important role in the mass production of fixed circuits and optimizing the layout of electrical appliances. Circuit boards can be called printed circuit boards or printed circuit boards;

[0003] In order to ensure the normal service life and operational reliability of the printed circuit board during the processing, a layer of moisture-proof paint is often sprayed on the outer surface of the printed circuit board to prevent water or moisture from eroding the components and prolong the service life of the printed circuit board.

[0004] For example, patent (CN210647000U) discloses a rapid spraying device for printed circuit boards. Through the mutual cooperation among the printed circuit board body, pull ring, slide rod, slot, threaded barrel, threaded column, first rotating device, first clamping plate, second clamping plate and spring, when it is necessary to spray the other side of the printed circuit board body, the staff can pull the slide rod to the right through the pull ring, so that the slide rod moves to the right and disengages from the slot, so that the staff can rotate the threaded barrel forward 180 degrees through the pull ring, so that the threaded barrel can drive the threaded column and the first rotating device to rotate forward 180 degrees under the tight clamping of the first clamping plate and the second clamping plate, so that the other side of the printed circuit board body is directly below the spray head.

[0005] When using the above technology, we found that the following technical problems exist in the existing technology: the surface of the printed circuit board cannot be cleaned of dust and baked before spraying, resulting in an inability to ensure that the protective paint can completely cover the surface of the printed circuit board during subsequent painting. To this end, we designed a circuit board surface spraying component to provide another technical solution to the above technical problems. Utility Model Content

[0006] Based on this, it is necessary to provide a circuit board surface spraying assembly to address the above technical problems. When it is necessary to spray protective paint on the printed circuit board, the printed circuit board is placed on top of the electric roller, and the electric roller drives the printed circuit board through the cleaning box, spray box and drying box in sequence. First, the dust on the surface of the printed circuit board is cleaned by the dust suction mechanism, so that the protective paint can be well adhered to the surface of the printed circuit board, thereby improving the adsorption effect of the protective paint. Then, the surface of the printed circuit board is sprayed with protective paint through the existing spraying mechanism. Secondly, the sprayed printed circuit board is transported to the baking mechanism inside the drying box, and the baking mechanism dries the protective paint on the surface of the printed circuit board, thereby improving the efficiency of the adsorption of the protective paint and the printed circuit board and increasing the spraying quality of the printed circuit board.

[0007] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0008] A circuit board surface spraying assembly includes a workbench, with a cleaning box, a spraying box, and a drying box fixed to the top of the workbench from left to right. The workbench is equipped with several electric rollers inside. The cleaning box is provided with a dust suction mechanism for cleaning the surface of the printed circuit board, the spraying box is provided with a spraying mechanism for protecting the printed circuit board, and the drying box is provided with a baking mechanism for drying the printed circuit board.

[0009] As a preferred embodiment of the circuit board surface spraying assembly provided by the utility model, the dust suction mechanism includes a collection assembly, an electric push rod, a soft brush, a support block and an adsorption head. Electric push rods are installed on both sides of the top inner side of the cleaning box, and a support block is fixed to the output end of the electric push rod. Several adsorption heads are fixed to the bottom end of the support block, and several soft brushes are fixed to the edge of the top end of the support block.

[0010] As a preferred embodiment of the circuit board surface spraying assembly provided by the utility model, a collecting assembly is provided at the top of the cleaning box, and the collecting assembly includes a limit box, a suction fan and a suction box. The limit box and the suction fan are fixed to the top of the cleaning box, the input end of the suction fan is fixed to the support block through a telescopic hose, and the output end of the suction fan is fixed to the limit box through a conduit, and a feed port is opened on the other side of the inside of the suction box, and the feed port is slidably connected to the conduit.

[0011] As a preferred embodiment of the circuit board surface spraying assembly provided by the present invention, the interior of the limit box is slidably connected to a drawer box, and a plurality of filter holes are provided on one side of the interior of the limit box and the drawer box.

[0012] As a preferred embodiment of the circuit board surface spraying assembly provided by the utility model, the baking mechanism includes an installation circular cylinder, a hair dryer and an electric heating tube. Installation grooves are provided on both sides of the top of the drying box. The top of the installation groove is fixed with an installation circular cylinder. The interior of the installation circular cylinder is equipped with a hair dryer, and the top of the interior of the drying box is equipped with an electric heating tube.

[0013] As a preferred embodiment of the circuit board surface spraying assembly provided by the present invention, an anti-slip sleeve is sleeved on the outer side of the electric roller.

[0014] It can be seen without a doubt that the above-mentioned technical solution of this application can definitely solve the technical problem to be solved by this application.

[0015] At the same time, through the above technical solutions, the present invention has at least the following beneficial effects:

[0016] 1. By starting the electric push rod, the support block, soft brush and adsorption head are adjusted towards the printed circuit board, and the bottom end of the soft brush is effectively and slightly in contact with the printed circuit board, so as to effectively clean the dust on the surface of the printed circuit board. At the same time, the suction fan is started to adsorb the support block and adsorption head, and the dust cleaned by the soft brush is adsorbed into the inside of the drawer. The air flows out through the filter holes, and the dust is filtered by the filter holes inside the drawer, so that the drawer can be pulled for centralized cleaning.

[0017] 2. After spraying is completed, start the electric heating tube to gradually increase the temperature inside the drying box, and at the same time start the hair dryer to blow the high temperature generated by the electric heating tube to the surface of the printed circuit board, thereby effectively drying the protective paint on the surface of the printed circuit board, thereby improving the efficiency of the adsorption of the protective paint and the printed circuit board, and increasing the spraying quality of the printed circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the cleaning box, spray box and drying box of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the dust collection mechanism of the utility model;

[0022] Figure 4 This is a schematic diagram of the baking mechanism structure of the utility model.

[0023] In the figure: 1. Workbench; 2. Cleaning box; 3. Spraying box; 4. Drying box; 5. Limit box; 6. Suction fan; 7. Electric roller; 8. Electric heating tube; 9. Electric push rod; 10. Extraction box; 11. Soft brush; 12. Support block; 13. Adsorption head; 14. Mounting round cylinder; 15. Hair dryer. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0025] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0026] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions therein can be combined with each other.

[0027] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0028] Example 1

[0029] Reference Figures 1-4 , a circuit board surface spraying assembly, including a workbench 1, the top of the workbench 1 is fixed with a cleaning box 2, a spraying box 3 and a drying box 4 from left to right, the interior of the workbench 1 is equipped with a plurality of electric rollers 7, the outer side of the electric roller 7 is sleeved with an anti-slip sleeve, and the anti-slip sleeve effectively improves the friction of the electric roller 7 on the printed circuit board, and prevents the printed circuit board from briefly staying above the electric roller 7 when the soft brush 11 is slightly in contact with the printed circuit board, and the anti-slip sleeve increases the continuity of the printed circuit board conveying, the interior of the cleaning box 2 is provided with a dust suction mechanism for cleaning the surface of the printed circuit board, the interior of the spraying box 3 is provided with a spraying mechanism for protecting the printed circuit board, and the interior of the drying box 4 is provided with a baking mechanism for drying the printed circuit board;

[0030] When it is necessary to spray protective paint on the printed circuit board, the printed circuit board is placed above the electric roller 7, and the electric roller 7 drives the printed circuit board to pass through the cleaning box 2, the spraying box 3 and the drying box 4 in sequence. First, the dust on the surface of the printed circuit board is cleaned by the dust suction mechanism, so that the protective paint can be well adhered to the surface of the printed circuit board, thereby improving the adsorption effect of the protective paint. Then, the protective paint is sprayed on the surface of the printed circuit board by the existing spraying mechanism. Secondly, the sprayed printed circuit board is transported to the baking mechanism inside the drying box 4, and the baking mechanism dries the protective paint on the surface of the printed circuit board, thereby improving the adsorption efficiency of the protective paint and the printed circuit board and improving the spraying quality of the printed circuit board.

[0031] The spraying mechanism in this embodiment is an existing disclosed technology. The present invention does not describe the spraying mechanism in detail, but takes the existing disclosed spraying mechanism as an example.

[0032] The dust collection mechanism includes a collection component, an electric push rod 9, a soft brush 11, a support block 12 and an adsorption head 13. The electric push rod 9 is installed on both sides of the top of the inner side of the cleaning box 2. The output end of the electric push rod 9 is fixed with a support block 12. The bottom end of the support block 12 is fixed with several adsorption heads 13. The edge of the top of the support block 12 is fixed with several soft brushes 11.

[0033] A collecting assembly is provided at the top of the cleaning box 2, which includes a limit box 5, a suction fan 6 and an extraction box 10. The limit box 5 and the suction fan 6 are fixed to the top of the cleaning box 2. The input end of the suction fan 6 is fixed to the support block 12 through a telescopic hose, and the output end of the suction fan 6 is fixed to the limit box 5 through a conduit. A feed port is provided on the other side of the extraction box 10, and the feed port is slidably connected to the conduit. The extraction box 10 is slidably connected to the interior of the limit box 5, and a plurality of filter holes are provided on one side of the limit box 5 and the interior of the extraction box 10;

[0034] Specifically, the printed circuit board is transported to the interior of the cleaning box 2 by the electric roller 7. At this time, the electric push rod 9 is started to drive the support block 12, the soft brush 11 and the adsorption head 13 to slide toward the printed circuit board, and the bottom end of the soft brush 11 is effectively in slight contact with the printed circuit board, so as to effectively clean the dust on the surface of the printed circuit board. At the same time, the suction fan 6 is started to adsorb the support block 12 and the adsorption head 13, and the dust cleaned by the soft brush 11 is adsorbed into the interior of the extraction box 10;

[0035] A filter hole is provided on one side of the limit box 5 and the drawer box 10, so that the suction fan 6 absorbs the dust into the inside of the drawer box 10, and the air flows out through the filter hole, while the dust is filtered into the inside of the drawer box 10 by the filter hole, so that the drawer box 10 can be pulled for centralized cleaning;

[0036] The baking mechanism includes a mounting circular cylinder 14, a blower 15 and an electric heating tube 8. Mounting grooves are provided on both sides of the top of the drying box 4. The top of the mounting groove is fixed with the mounting circular cylinder 14. The inside of the mounting circular cylinder 14 is equipped with a blower 15. The top of the drying box 4 is equipped with an electric heating tube 8.

[0037] After the surface of the printed circuit board is sprayed by the existing spraying mechanism, the printed circuit board is transported to the interior of the drying box 4 by the electric roller 7. At this time, the electric heating tube 8 is started to gradually increase the temperature inside the drying box 4. At the same time, the hair dryer 15 is started to blow the high temperature generated by the electric heating tube 8 to the surface of the printed circuit board, thereby effectively drying the protective paint on the surface of the printed circuit board, thereby improving the efficiency of the adsorption of the protective paint and the printed circuit board and improving the spraying quality of the printed circuit board.

[0038] The use process of the circuit board surface spraying assembly provided by the utility model is as follows:

[0039] Working principle: When it is necessary to spray protective paint on the printed circuit board, the printed circuit board is placed on top of the electric roller 7, and the electric roller 7 drives the printed circuit board to pass through the cleaning box 2, the spray box 3 and the drying box 4 in sequence. At this time, the electric push rod 9 is started to drive the support block 12, the soft brush 11 and the adsorption head 13 to slide toward the printed circuit board, and the bottom end of the soft brush 11 is effectively in slight contact with the printed circuit board, so as to effectively clean the dust on the surface of the printed circuit board. At the same time, the suction fan 6 is started to adsorb the support block 12 and the adsorption head 13, and the dust cleaned by the soft brush 11 is adsorbed into the inside of the extraction box 10, so as to facilitate the disposal of the cleaned dust;

[0040] After the surface of the printed circuit board is sprayed by the conventional spraying mechanism, the printed circuit board is transported to the interior of the drying box 4 by the electric roller 7. At this time, the electric heating tube 8 is started to gradually increase the temperature inside the drying box 4. At the same time, the blower 15 is started to blow the high temperature generated by the electric heating tube 8 to the surface of the printed circuit board, thereby effectively drying the protective paint on the surface of the printed circuit board, thereby improving the efficiency of the adsorption of the protective paint and the printed circuit board and improving the spraying quality of the printed circuit board;

[0041] Therefore, the above working principle effectively improves the working efficiency and consistency of the device for spraying printed circuit boards.

[0042] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to specific embodiments. Obviously, numerous modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A circuit board surface spraying assembly, characterized in that: The invention comprises a workbench (1), wherein a cleaning box (2), a spray box (3) and a drying box (4) are fixed on the top of the workbench (1) from left to right, a plurality of electric rollers (7) are installed inside the workbench (1), a dust collecting mechanism for cleaning the surface of a printed circuit board is provided inside the cleaning box (2), a spraying mechanism for protecting the printed circuit board is provided inside the spray box (3), and a baking mechanism for drying the printed circuit board is provided inside the drying box (4); The dust collection mechanism comprises a collection assembly, an electric push rod (9), a soft brush (11), a support block (12) and an adsorption head (13); the electric push rod (9) is mounted on both sides of the top inner side of the cleaning box (2); the support block (12) is fixed to the output end of the electric push rod (9); a plurality of adsorption heads (13) are fixed to the bottom end of the support block (12); and a plurality of soft brushes (11) are fixed to the edge of the top end of the support block (12); The top of the cleaning box (2) is provided with a collecting assembly, and the collecting assembly includes a limit box (5), a suction fan (6) and an extraction box (10). The limit box (5) and the suction fan (6) are fixed to the top of the cleaning box (2). The input end of the suction fan (6) is fixed to the support block (12) through a telescopic hose, and the output end of the suction fan (6) is fixed to the limit box (5) through a conduit. A feed port is provided on the other side of the interior of the extraction box (10), and the feed port is slidably connected to the conduit. The interior of the limiting box (5) is slidably connected to a drawer box (10), and a plurality of filter holes are provided on one side of the interior of the limiting box (5) and the drawer box (10).

2. A circuit board surface spraying assembly according to claim 1, characterized in that: The baking mechanism comprises a mounting circular cylinder (14), a blower (15) and an electric heating tube (8); mounting grooves are provided on both sides of the top of the drying box (4); the mounting circular cylinder (14) is fixed to the top of the mounting groove; the blower (15) is installed inside the mounting circular cylinder (14); and the electric heating tube (8) is installed at the top of the drying box (4).

3. A circuit board surface spraying assembly according to claim 2, characterized in that: The outer side of the motorized roller (7) is sleeved with an anti-slip sleeve.

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