An adjustable coating device for circuit board processing

Abstract

The utility model discloses an adjustable coating device for processing circuit boards, including a frame, a carrier installed inside the frame, and a column installed at the rear end of the frame. The utility model realizes the adjustment of coating height by providing a coating tank, a connecting pipe, a coating box, an electric push rod, a guide rod, a mounting frame, a brush roller and a material distribution pipe. The operation of the electric push rod, in conjunction with the distribution of the guide rod, controls the vertical movement of the brush roller, and adjusts the distance between the brush roller and the carrier to adapt to circuit boards of different thicknesses. The operation of the pump conveys the coating to the inside of the coating tank through the connecting pipe and the material distribution pipe. The cross section of the coating tank is in a "C" shape, which fits on one side of the brush roller. In conjunction with the rolling of the brush roller, the coating can be evenly covered on the surface of the brush roller, and then the coating operation is performed on the circuit board by contacting the circuit board, thereby avoiding the influence of the height adjustment of the brush roller on the uniformity of the coating, thereby improving the flexibility of use.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board processing, in particular to an adjustable coating device for circuit board processing. Background Art

[0002] Circuit board, also known as printed circuit board, PCB for short, is a layer of copper foil pasted on an insulating board. The unnecessary parts are removed through chemical corrosion and other processes to form a conductive path that can fix electronic components and wire connections. During the processing of circuit boards, paint will be coated on the surface of the circuit boards. Circuit board coating processing is an important link in the circuit board manufacturing process. Its purpose is to improve the appearance, solderability, corrosion resistance, wear resistance and other performance requirements of PCB boards by coating specific materials. During the coating operation, facing circuit boards of different thicknesses, the height of the coating brush roller needs to be adjusted, which changes the distance between the coating brush roller and the nozzle, making it difficult for the paint to evenly cover the coating brush roller, affecting the uniformity of the circuit board coating and not convenient for flexible adjustment. Therefore, an adjustable coating device for circuit board processing is now provided. Utility Model Content

[0003] The purpose of the utility model is to provide an adjustable coating device for circuit board processing to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an adjustable coating device for circuit board processing, comprising a frame, a carrier installed inside the frame, a column installed at the rear end of the frame, and a cross bar installed at the bottom end of the column, a mounting frame is provided at the bottom end of the cross bar, and a brush roller is installed inside the mounting frame, a paint trough is provided on one side of the brush roller, and a fixed connection is formed between the paint trough and the mounting frame, an electric push rod is installed at the center position of the top end of the cross bar, and a fixed connection is formed between the bottom end of the electric push rod and the mounting frame, a guide rod is installed at the bottom end of the mounting frame, and the guide rod passes through the inside of the cross bar, a cloth pipe is installed inside the paint trough, a paint box is installed on one side of the top of the column, and a pump is installed inside the paint box, and a connecting pipe is installed between the pump and the cloth pipe.

[0005] Preferably, two groups of guide rods are provided, and the guide rods are centrally symmetrically distributed at the top end of the mounting frame.

[0006] Preferably, nozzles are arranged on the outer side of the material distribution pipe, and the nozzles are arranged in a plurality of groups, and the nozzles are distributed at equal intervals on the material distribution pipe.

[0007] Preferably, a limit strip is provided on one side of the top of the platform, a baffle is installed on one side of the platform, and a threaded sleeve is installed on the bottom end of the baffle, a threaded rod passes through the inside of the threaded sleeve, and a threaded connection is formed between the threaded rod and the threaded sleeve, and a driving motor is installed on one end of the threaded rod.

[0008] Preferably, linear guide rails are installed between both sides of the carrier and the frame, and the linear guide rails and the threaded rods are parallel to each other.

[0009] Preferably, the top of the carrier is provided with through holes, and the through holes are evenly distributed on the carrier.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] (1) The coating height can be adjusted by providing a coating tank, a connecting pipe, a coating box, an electric push rod, a guide rod, a mounting frame, a brush roller and a feeding pipe. The operation of the electric push rod, in conjunction with the distribution of the guide rod, controls the vertical movement of the brush roller and adjusts the distance between the brush roller and the carrier to adapt to circuit boards of different thicknesses. The operation of the pump conveys the coating to the inside of the coating tank through the connecting pipe and the feeding pipe. The cross-section of the coating tank is in a "C" shape and fits on one side of the brush roller. In conjunction with the rolling of the brush roller, the coating can be evenly covered on the surface of the brush roller, and then contacted with the circuit board to coat the circuit board, thereby avoiding the influence of the height adjustment of the brush roller on the uniformity of the coating, thereby improving the flexibility of use;

[0012] (2) The circuit board is limited by setting a limit bar and a baffle. The limit bar and the baffle are respectively set on both sides of the carrier, which can block both sides of the circuit board and prevent the circuit board from detaching from the top of the carrier;

[0013] (3) The automatic coating function is realized by providing a threaded sleeve, a threaded rod, a driving motor and a linear guide rail. The operation of the driving motor drives the threaded rod, which cooperates with the threaded connection with the threaded sleeve. Under the restriction of the linear guide rail, the carrier is controlled to move horizontally inside the frame, driving the circuit board on the top of the carrier to move. The contact between the circuit board and the brush roller causes the friction to drive the brush roller to rotate, and the paint is rolled onto the surface of the circuit board, thereby improving the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 This is a front view structural schematic diagram of the utility model;

[0016] Figure 2 It is a front view cross-sectional structural schematic diagram of the utility model;

[0017] Figure 3 It is a schematic diagram of the top view structure of the utility model;

[0018] Figure 4 It is a schematic diagram of the partial cross-sectional structure of the utility model in a front view.

[0019] Description of reference numerals in the figures:

[0020] 1. Frame; 2. Carrier; 3. Threaded sleeve; 4. Column; 5. Threaded rod; 6. Drive motor; 7. Paint tank; 8. Connecting pipe; 9. Paint box; 10. Electric push rod; 11. Guide rod; 12. Cross bar; 13. Mounting frame; 14. Brush roller; 15. Limit strip; 16. Linear guide rail; 17. Baffle; 18. Through hole; 19. Pump; 20. Fabric pipe; 21. Nozzle. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] See also Figure 1-4The utility model provides an embodiment: an adjustable coating device for circuit board processing, comprising a frame 1, a carrier 2 is installed inside the frame 1, a column 4 is installed at the rear end of the frame 1, and a cross bar 12 is installed at the bottom end of the column 4, a mounting frame 13 is provided at the bottom end of the cross bar 12, and a brush roller 14 is installed inside the mounting frame 13, a coating groove 7 is provided on one side of the brush roller 14, and a fixed connection is formed between the coating groove 7 and the mounting frame 13, an electric push rod 10 is installed at the center position of the top end of the cross bar 12, and a fixed connection is formed between the bottom end of the electric push rod 10 and the mounting frame 13 A guide rod 11 is installed at the bottom end of the mounting frame 13, and the guide rod 11 runs through the inside of the cross bar 12, a feeding pipe 20 is installed inside the paint tank 7, a paint box 9 is installed on one side of the top of the column 4, and a pump 19 is installed inside the paint box 9, and a connecting pipe 8 is installed between the pump 19 and the feeding pipe 20. Two groups of guide rods 11 are provided, and the guide rods 11 are centrally symmetrically distributed at the top of the mounting frame 13. The cross section of the paint tank 7 is "C" shaped, which fits on one side of the brush roller 14. With the rolling of the brush roller 14, the paint can be evenly covered on the surface of the brush roller 14;

[0024] Specifically, as shown in the figure, when in use, the brush roller 14 is controlled to move vertically by the operation of the electric push rod 10 and the distribution of the guide rod 11, and the distance between the brush roller 14 and the carrier 2 is adjusted to adapt to circuit boards of different thicknesses;

[0025] The outer side of the distribution pipe 20 is provided with a nozzle 21, and the nozzle 21 is provided with a plurality of groups, and the nozzle 21 is evenly distributed on the distribution pipe 20. The arrangement of the nozzle 21 and the distribution pipe 20 can evenly transport the paint to the inside of the paint tank 7;

[0026] A limit bar 15 is provided on one side of the top of the carrier 2, a baffle 17 is installed on one side of the carrier 2, and a threaded sleeve 3 is installed on the bottom end of the baffle 17, a threaded rod 5 is passed through the inside of the threaded sleeve 3, and a threaded connection is formed between the threaded rod 5 and the threaded sleeve 3, and a driving motor 6 is installed on one end of the threaded rod 5, and linear guides 16 are installed between both sides of the carrier 2 and the frame 1, and the linear guides 16 and the threaded rod 5 are parallel to each other, and the limit bar 15 and the baffle 17 are respectively provided on both sides of the carrier 2, which can block both sides of the circuit board;

[0027] Specifically, as shown in the figure, when in use, the driving motor 6 drives the threaded rod 5 to cooperate with the threaded connection with the threaded sleeve 3, and under the restriction of the linear guide 16, controls the carrier 2 to move horizontally inside the frame 1, driving the circuit board on the top of the carrier 2 to move;

[0028] A through hole 18 is provided at the top of the carrier 2, and the through holes 18 are evenly distributed on the carrier 2. Excess paint will flow on the surface of the carrier 2 and drain downward through the through holes 18, so that the paint accumulates on the surface of the carrier 2.

[0029] Working principle: When in use, first, carry the adjustable circuit board processing coating device to the target area, inject the paint into the paint box 9, place the circuit board on the top of the carrier 2, adjust the height of the brush roller 14 according to the thickness of the circuit board, operate the control box, control the operation of the electric push rod 10, coordinate with the distribution of the guide rod 11, control the vertical movement of the brush roller 14, adjust the distance between the brush roller 14 and the carrier 2, and then control the pump 19 and the drive motor 6 to operate, the pump 19 transports the paint to the inside of the paint tank 7, the cross section of the paint tank 7 is "C" shaped, It is attached to one side of the brush roller 14 and cooperates with the rolling of the brush roller 14 to evenly cover the surface of the brush roller 14 with the paint. Then, the operation of the drive motor 6 drives the threaded rod 5, which cooperates with the threaded connection with the threaded sleeve 3. Under the restriction of the linear guide 16, the carrier 2 is controlled to move horizontally inside the frame 1, driving the circuit board to move. The contact between the circuit board and the brush roller 14 and the friction force will drive the brush roller 14 to rotate, transferring the paint on the outside of the brush roller 14 to the surface of the circuit board, coating the circuit board, and finally completing the use of the adjustable coating device for circuit board processing.

[0030] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. An adjustable coating device for circuit board processing, comprising a frame (1), characterized in that: A carrier (2) is installed inside the frame (1), a column (4) is installed at the rear end of the frame (1), and a cross bar (12) is installed at the bottom end of the column (4), a mounting frame (13) is provided at the bottom end of the cross bar (12), and a brush roller (14) is installed inside the mounting frame (13), a paint groove (7) is provided on one side of the brush roller (14), and a fixed connection is formed between the paint groove (7) and the mounting frame (13), and an electric push rod (14) is installed at the center position of the top end of the cross bar (12) 10), and a fixed connection is formed between the bottom end of the electric push rod (10) and the mounting frame (13), a guide rod (11) is installed at the bottom end of the mounting frame (13), and the guide rod (11) runs through the inside of the cross bar (12), a material distribution pipe (20) is installed inside the paint tank (7), a paint box (9) is installed on one side of the top end of the column (4), and a pump (19) is installed inside the paint box (9), and a connecting pipe (8) is installed between the pump (19) and the material distribution pipe (20).

2. The adjustable coating device for circuit board processing according to claim 1, characterized in that: The guide rods (11) are provided in two groups, and the guide rods (11) are centrally symmetrically distributed at the top end of the mounting frame (13).

3. The adjustable coating device for circuit board processing according to claim 1, characterized in that: Nozzles (21) are arranged on the outer side of the material distribution pipe (20), and the nozzles (21) are arranged in a plurality of groups, and the nozzles (21) are distributed at equal intervals on the material distribution pipe (20).

4. The adjustable coating device for circuit board processing according to claim 1, characterized in that: A limit strip (15) is arranged on one side of the top of the carrier (2), a baffle (17) is installed on one side of the carrier (2), and a threaded sleeve (3) is installed at the bottom end of the baffle (17), a threaded rod (5) passes through the interior of the threaded sleeve (3), and a threaded connection is formed between the threaded rod (5) and the threaded sleeve (3), and a driving motor (6) is installed at one end of the threaded rod (5).

5. The adjustable coating device for circuit board processing according to claim 1, characterized in that: Linear guide rails (16) are installed between the two sides of the carrier (2) and the frame (1), and the linear guide rails (16) and the threaded rods (5) are parallel to each other.

6. The adjustable coating device for circuit board processing according to claim 1, characterized in that: The top of the carrier (2) is provided with through holes (18), and the through holes (18) are evenly distributed on the carrier (2).

Images