Cleaning machine for printed circuit board

Abstract

The utility model belongs to the technical field of printed circuit boards, and particularly relates to a cleaning machine for a printed circuit board, which comprises a cleaning box and mounting grooves, the mounting grooves are arranged on the inner wall of the cleaning box, the mounting grooves are symmetrically distributed on two sides of the inner wall of the cleaning box, a cleaning mechanism is arranged in the cleaning box, and an air drying mechanism is arranged in the cleaning box. And the cleaning mechanism comprises a moving unit and a rotating unit, the moving unit comprises a first driving motor, a transmission part, a placement seat and a limiting plate, and the first driving motor is fixedly installed on the side face of the cleaning box. According to the cleaning machine for the printed circuit board, by arranging the air drying mechanism, after the printed circuit board is subjected to chemical reagent cleaning, the printed circuit board can be air-dried through blowing of a fan, the drying efficiency is improved, and use is convenient after cleaning; and by arranging the moving unit, the printed circuit board can be driven to move to be matched with continuous rotation of the cleaning brush to comprehensively clean the printed circuit board, and the cleaning effect is better.

Description

Technical Field

[0001] The utility model relates to the technical field of printed circuit boards, in particular to a cleaning machine for printed circuit boards. Background Art

[0002] Printed circuit boards are providers of electrical connections for electronic components. They have a history of more than 100 years; their design is mainly layout design; the main advantage of using circuit boards is that they greatly reduce wiring and assembly errors, improve the level of automation and production labor rate, and can be divided into single-sided boards, double-sided boards, four-layer boards, six-layer boards and other multi-layer boards according to the number of layers of the circuit board.

[0003] At present, the existing printed circuit boards are cleaned by a relatively simple treatment method of immersing in reagents, which is not thorough enough and has a low utilization rate of the cleaning liquid.

[0004] Therefore, we propose a cleaning machine for printed circuit boards to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a cleaning machine for printed circuit boards to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the utility model provides the following technical solutions: a cleaning machine for printed circuit boards, comprising a cleaning box and a mounting groove, wherein the mounting groove is provided on the inner wall of the cleaning box, the mounting groove is symmetrically distributed on both sides of the inner wall of the cleaning box, a cleaning mechanism is provided inside the cleaning box, and an air drying mechanism is provided inside the cleaning box;

[0007] The cleaning mechanism includes a moving unit and a rotating unit, and the moving unit includes a first driving motor, a transmission member, a placement seat and a limit plate. The first driving motor is fixedly installed on the side of the cleaning box, the transmission member is installed on the inner wall of the installation groove, the placement seat is fixedly installed at the side connection of the transmission member, and the limit plate is fixedly installed on the upper surface of the placement seat.

[0008] Preferably, the rotating unit includes a rotating shaft, a roller, a second drive motor, a cleaning brush and a circular hole, the circular hole passes through the upper side of the cleaning box, the second drive motor is fixedly installed on the upper side of the cleaning box, the rotating shaft is fixedly installed on the output end of the second drive motor, the roller is fixedly installed on the outer surface of the rotating shaft, and the cleaning brush is fixedly installed on the outer surface of the roller.

[0009] Preferably, a cover plate is buckled on the upper surface of the cleaning box, a pressurizing chamber is fixedly installed on the upper surface of the cover plate, a delivery pipe is fixedly installed on the side of the pressurizing chamber, a fixed column is fixedly installed on the lower surface of the delivery pipe, a nozzle is fixedly installed on the side of the fixed column, and the nozzle is obliquely fixed on the side of the fixed column to spray chemical reagents on the cleaning brush, thereby cooperating with the function of the chemical reagents to thoroughly clean the printed circuit board.

[0010] Preferably, the air-drying mechanism includes a connecting unit and a blowing unit, the connecting unit includes a partition, a connecting plate and a fan slot, the partition is fixedly installed on one side of the inner wall of the washing box, the connecting plate is fixedly installed on the inner wall of the washing box, and the fan slot runs through the upper surface of the connecting plate.

[0011] Preferably, the blowing unit includes a fan, a fixing frame, a ventilation plate and a through hole, the fan is fixedly installed on the inner wall of the fan slot, the fixing frame is fixedly installed on the upper surface of the connecting plate, the ventilation plate is fixedly installed on the inner wall of the fixing frame, and the through hole runs through the upper surface of the ventilation plate.

[0012] Preferably, a drainage hole is passed through the middle of the bottom surface of the cleaning box, a mounting pipe is fixedly installed on the inner wall of the drainage hole, a support column is fixedly installed on the bottom surface of the cleaning box, a support base is fixedly installed on the bottom surface of the support column, and the support columns are symmetrically distributed at the four corners of the bottom surface of the cleaning box. The four support columns provide good and stable support for the entire cleaning box.

[0013] Preferably, a hole is penetrated on one side of the inner wall of the installation groove, one end of the transmission member passes through the hole and is fixedly connected to the output end of the first drive motor, one end of the rotating shaft passes through the through hole and is fixedly connected to the output end of the second drive motor, and the cleaning brushes are fixedly installed on the outer surface of the drum in sequence at equal intervals, and when the drum rotates, multiple cleaning brushes are driven to rotate to comprehensively clean the printed circuit board.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The printed circuit board cleaning machine is provided with an air drying mechanism so that the printed circuit board can be air dried by a fan after being cleaned with chemical reagents, thereby improving the drying efficiency and being easy to use after cleaning.

[0016] 2. The printed circuit board cleaning machine can drive the printed circuit board to move by setting a moving unit, and can clean the printed circuit board in all aspects under the continuous rotation of the cleaning brush, so that the cleaning effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0018] Figure 2This is a schematic diagram of the cleaning mechanism structure of the utility model;

[0019] Figure 3 for Figure 2 A schematic diagram of the local enlarged structure at point A in the middle;

[0020] Figure 4 It is a schematic diagram of the structure of the air-drying mechanism of the utility model.

[0021] In the figure: 1. cleaning box; 2. support column; 201. support base; 3. mounting slot; 301. first drive motor; 302. transmission member; 303. placement seat; 304. limit plate; 305. cover plate; 306. pressurization chamber; 307. delivery pipe; 308. fixed column; 309. nozzle; 310. rotating shaft; 311. roller; 312. second drive motor; 313. cleaning brush; 314. partition; 315. connecting plate; 316. fan slot; 317. fan; 318. fixing frame; 319. ventilation plate; 320. through hole; 321. round hole; 322. drainage hole; 323. mounting pipe. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0023] See also Figure 1-Figure 4 , the utility model provides a technical solution:

[0024] Embodiment 1: A cleaning machine for a printed circuit board comprises a cleaning box 1 and a mounting groove 3, wherein the mounting groove 3 is provided on the inner wall of the cleaning box 1, and the mounting groove 3 is symmetrically distributed on both sides of the inner wall of the cleaning box 1, a cleaning mechanism is provided inside the cleaning box 1, and an air drying mechanism is provided inside the cleaning box 1;

[0025] The cleaning mechanism includes a moving unit and a rotating unit. The moving unit includes a first driving motor 301, a transmission member 302, a placement seat 303 and a limiting plate 304. The first driving motor 301 is fixedly installed on the side of the cleaning box 1, the transmission member 302 is installed on the inner wall of the installation groove 3, the placement seat 303 is fixedly installed at the side connection of the transmission member 302, and the limiting plate 304 is fixedly installed on the upper surface of the placement seat 303.

[0026] The rotating unit includes a rotating shaft 310, a roller 311, a second driving motor 312, a cleaning brush 313 and a circular hole 321. The circular hole 321 runs through the upper side of the cleaning box 1. The second driving motor 312 is fixedly installed on the upper side of the cleaning box 1. The rotating shaft 310 is fixedly installed on the output end of the second driving motor 312. The roller 311 is fixedly installed on the outer surface of the rotating shaft 310. The cleaning brush 313 is fixedly installed on the outer surface of the roller 311. The upper surface of the cleaning box 1 is buckled with a cover plate 305. The upper surface of the cover plate 305 is fixedly installed with a pressurizing chamber 306. The side of the pressurizing chamber 306 is fixedly installed with a conveying pipe 307. A fixing column 308 is fixedly installed on the lower surface of the conveying pipe 307, and a nozzle 309 is fixedly installed on the side of the fixing column 308. A hole is penetrated on one side of the inner wall of the installation groove 3, and one end of the transmission member 302 passes through the hole and is fixedly connected to the output end of the first drive motor 301, and one end of the rotating shaft 310 passes through the through hole 320 and is fixedly connected to the output end of the second drive motor 312. Cleaning brushes 313 are fixedly installed on the outer surface of the roller 311 in an equidistant order. By setting a moving unit, the printed circuit board can be driven to move, and the printed circuit board can be cleaned in all aspects under the continuous rotation of the cleaning brush 313, and the cleaning effect is better.

[0027] The printed circuit board is placed on the upper surface of the placement seat 303 and limited by the limit plate 304 fixedly installed on the upper surface of the placement seat 303. The first driving motor 301 drives the threaded column in the transmission member 302 to rotate. Through the threaded engagement, the moving block drives the placement seat 303 to move on the outer surface of the threaded column, thereby driving the printed circuit board to move. The pressurizing chamber 306 transports the chemical reagent to the fixed column 308 through the delivery pipe 307 and is sprayed by the nozzle 309. The second driving motor 312 drives the rotating shaft 310 to rotate, thereby driving the roller 311 and the cleaning brush 313 to rotate. When the placement seat 303 moves, the printed circuit board is cleaned by the cleaning brush 313.

[0028] Embodiment 2: Based on embodiment 1, the air drying mechanism includes a connecting unit and a blowing unit, the connecting unit includes a partition 314, a connecting plate 315 and a fan slot 316, the partition 314 is fixedly installed on one side of the inner wall of the washing box 1, the connecting plate 315 is fixedly installed on the inner wall of the washing box 1, and the fan slot 316 runs through the upper surface of the connecting plate 315.

[0029] The blowing unit includes a fan 317, a fixing frame 318, a ventilation plate 319 and a through hole 320. The fan 317 is fixedly installed on the inner wall of the fan slot 316, the fixing frame 318 is fixedly installed on the upper surface of the connecting plate 315, the ventilation plate 319 is fixedly installed on the inner wall of the fixing frame 318, and the through hole 320 runs through the upper surface of the ventilation plate 319. By arranging an air-drying mechanism, the printed circuit board can be air-dried by blowing air through the fan 317 after the printed circuit board is cleaned with chemical reagents, so as to improve the drying efficiency and facilitate use after cleaning. A drainage hole 322 runs through the middle position of the bottom surface of the cleaning box 1, and a mounting pipe 323 is fixedly installed on the inner wall of the drainage hole 322. A support column 2 is fixedly installed on the bottom surface of the cleaning box 1, and a support base 201 is fixedly installed on the bottom surface of the support column 2. The support columns 2 are symmetrically distributed at the four corners of the bottom surface of the cleaning box 1.

[0030] The fan 317 is powered by an external power supply to rotate. After the printed circuit board is cleaned, the placement seat 303 drives it to move to the bottom of the fan 317, and the printed circuit board is dried by the fan 317. The waste liquid after cleaning is discharged through the drain hole 322 and collected and processed by the pipeline connected to the installation tube 323.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A cleaning machine for printed circuit boards, comprising a cleaning box (1) and a mounting groove (3), wherein the mounting groove (3) is provided on the inner wall of the cleaning box (1), and the mounting groove (3) is symmetrically distributed on both sides of the inner wall of the cleaning box (1), characterized in that: The cleaning box (1) is provided with a cleaning mechanism inside, and the cleaning box (1) is provided with an air drying mechanism inside; The cleaning mechanism comprises a moving unit and a rotating unit, wherein the moving unit comprises a first driving motor (301), a transmission member (302), a placement seat (303) and a limiting plate (304), wherein the first driving motor (301) is fixedly mounted on the side of the cleaning box (1), the transmission member (302) is mounted on the inner wall of the mounting groove (3), the placement seat (303) is fixedly mounted on the side connection of the transmission member (302), and the limiting plate (304) is fixedly mounted on the upper surface of the placement seat (303).

2. A printed circuit board cleaning machine according to claim 1, characterized in that: The rotating unit comprises a rotating shaft (310), a roller (311), a second driving motor (312), a cleaning brush (313) and a circular hole (321); the circular hole (321) passes through the upper side of the cleaning box (1); the second driving motor (312) is fixedly mounted on the upper side of the cleaning box (1); the rotating shaft (310) is fixedly mounted on the output end of the second driving motor (312); the roller (311) is fixedly mounted on the outer surface of the rotating shaft (310); and the cleaning brush (313) is fixedly mounted on the outer surface of the roller (311).

3. A printed circuit board cleaning machine according to claim 1, characterized in that: The upper surface of the cleaning box (1) is buckled with a cover plate (305), the upper surface of the cover plate (305) is fixedly mounted with a pressurizing chamber (306), the side of the pressurizing chamber (306) is fixedly mounted with a delivery pipe (307), the lower surface of the delivery pipe (307) is fixedly mounted with a fixing column (308), and the side of the fixing column (308) is fixedly mounted with a spray head (309).

4. A printed circuit board cleaning machine according to claim 1, characterized in that: The air-drying mechanism comprises a connecting unit and a blowing unit, wherein the connecting unit comprises a partition (314), a connecting plate (315) and a fan slot (316), wherein the partition (314) is fixedly mounted on one side of the inner wall of the cleaning box (1), the connecting plate (315) is fixedly mounted on the inner wall of the cleaning box (1), and the fan slot (316) runs through the upper surface of the connecting plate (315).

5. A printed circuit board cleaning machine according to claim 4, characterized in that: The blowing unit comprises a fan (317), a fixing frame (318), a ventilation plate (319) and a through hole (320); the fan (317) is fixedly mounted on the inner wall of the fan slot (316); the fixing frame (318) is fixedly mounted on the upper surface of the connecting plate (315); the ventilation plate (319) is fixedly mounted on the inner wall of the fixing frame (318); and the through hole (320) runs through the upper surface of the ventilation plate (319).

6. A printed circuit board cleaning machine according to claim 1, characterized in that: A drainage hole (322) is provided through the middle of the bottom surface of the cleaning box (1); a mounting pipe (323) is fixedly mounted on the inner wall of the drainage hole (322); a support column (2) is fixedly mounted on the bottom surface of the cleaning box (1); a support base (201) is fixedly mounted on the bottom surface of the support column (2); and the support columns (2) are symmetrically distributed at the four corners of the bottom surface of the cleaning box (1).

7. A printed circuit board cleaning machine according to claim 2, characterized in that: A hole is penetrated through one side of the inner wall of the installation groove (3); one end of the transmission member (302) passes through the hole and is fixedly connected to the output end of the first drive motor (301); one end of the rotating shaft (310) passes through the through hole (320) and is fixedly connected to the output end of the second drive motor (312); and the cleaning brushes (313) are fixedly installed on the outer surface of the roller (311) in a sequence with equal spacing.

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