Circuit board washing device and use method thereof

Abstract

The present invention belongs to the technical field of circuit boards, and in particular to a circuit board washing device and a method for using the same. In view of the problems that the existing manual loading and unloading is required, the circuit board cannot be effectively cleaned, and the two surfaces cannot be cleaned at the same time, the following scheme is proposed, which includes a cleaning box, and the cleaning box contains a solvent for cleaning the circuit board, vertical plates are fixed on both sides of the cleaning box, and movable grooves are provided in the two vertical plates. The same rotating shaft is provided in the two movable grooves, and a mounting plate is provided in the outer wall fixed sleeve of the rotating shaft. In the present invention, the rotating shaft is driven up and down by a multi-section cylinder, so that the loading, cleaning, drying and unloading operations of the circuit board can be automatically completed, and the whole process is automated, which not only reduces the labor intensity of the staff but also improves the cleaning efficiency. In the cleaning process, the circuit board can be immersed in the cleaning box, and the top and bottom of the circuit board can be cleaned from different angles, so that the cleaning operation of both sides of the circuit board can be effectively completed.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit boards, and in particular to a circuit board washing device and a use method thereof. Background Art

[0002] The purpose of circuit board washing is multifaceted, and its importance cannot be ignored. One of the main purposes of circuit board washing is to remove pollutants on the surface of the circuit board, such as oil, dust, welding slag, cutting oil, copper oxide, etc. By washing the board, impurities and moisture on the surface of the circuit board can be removed, thereby improving the insulation performance of the circuit board. The board washing process can remove oxides and other substances on the surface of the circuit board to prevent them from corroding and damaging the circuit board, thereby extending the service life of the circuit board; the surface of the circuit board after cleaning is smooth and flat, which is conducive to ensuring the overall performance and electrical characteristics of the circuit board.

[0003] For example, the utility model with announcement number CN209866459U discloses a circuit board washing water spraying device. The above technical solution still has some shortcomings when used:

[0004] 1. The above technical solution requires manual loading and unloading of materials one by one during the plate washing process, which not only increases the labor intensity of the staff during the plate washing process, but also affects the efficiency of plate washing;

[0005] 2. Spraying board-cleaning water through a nozzle cannot effectively clean the circuit board, and only one side of the circuit board can be cleaned during cleaning, and both sides cannot be cleaned at the same time.

[0006] In view of the above problems, the present invention document proposes a circuit board washing device and a method for using the same. Summary of the invention

[0007] The purpose of the present invention is to solve the shortcomings of the existing circuit board cleaning device that requires manual loading and unloading, cannot effectively clean the circuit board, and cannot clean two surfaces at the same time, and proposes a circuit board washing device and a use method thereof.

[0008] In order to achieve the above object, the present invention adopts the following technical solutions:

[0009] A circuit board washing device comprises a cleaning box, and a solvent for cleaning circuit boards is contained in the cleaning box, vertical plates are fixed on both sides of the cleaning box, movable grooves are arranged in the two vertical plates, the same rotating shaft is arranged in the two movable grooves, a mounting plate is arranged on the outer wall fixed sleeve of the rotating shaft, a rotating disk is rotatably connected to the bottom end of the mounting plate, a plurality of vacuum suction cups are fixed to the bottom of the rotating disk through connecting rods, and the circuit board can be adsorbed on the bottom of the rotating disk through the vacuum suction cups;

[0010] It also includes a plurality of upper electromagnetic nozzles and a lower electromagnetic nozzle arranged in the cleaning box, and the upper electromagnetic nozzle is located above the lower electromagnetic nozzle, and the cooperation of the upper electromagnetic nozzle and the lower electromagnetic nozzle is used to clean the top and bottom of the circuit board, and the outer wall of the rotating disk is fixed with a plurality of arc plates;

[0011] It also includes a gantry, which is fixed on the top of the cleaning box, and a collection frame is provided on the top of the gantry for collecting the cleaned circuit boards;

[0012] It also includes a bracket fixed on the top of the cleaning box, and a placement box is slidably arranged on the top of the bracket through a slide groove and a slider, and the placement box is used to hold the circuit board to be cleaned;

[0013] Two sets of cleaning structures are respectively arranged on both sides of the cleaning box, and are used to clean the top and bottom of the circuit board;

[0014] Two sets of driving structures are respectively arranged on two sides of the cleaning box away from each other, and are used to drive the shaft to rise and fall, so as to complete the cleaning, collection and loading of the circuit board;

[0015] The collecting structure is arranged in the gantry and is used for automatically collecting the circuit boards after cleaning.

[0016] In a possible design, the cleaning structure includes a booster pump fixed on one side of the cleaning box, the liquid inlet end of the booster pump extends into the cleaning box through a pipeline, an upper rotating tube and a lower rotating tube are rotatably connected in the cleaning box, and the upper rotating tube is located above the lower rotating tube, a plurality of upper electromagnetic nozzles and lower electromagnetic nozzles are respectively fixedly connected to one side of the upper rotating tube and the lower rotating tube, the upper rotating tube and the lower rotating tube are connected by a synchronous wheel and a synchronous belt transmission, and are used to drive the upper rotating tube and the lower rotating tube to rotate synchronously, a horizontal plate is fixed in the cleaning box, a nozzle is fixed on one side of the horizontal plate, and the nozzle cooperates with the arc plate for driving The rotating disk rotates, and a liquid outlet pipe is fixed to the liquid outlet end of the booster pump, one end of which extends into the cleaning box and is connected to the nozzle; the booster pump transports the solvent in the cleaning box to the nozzle through the liquid outlet pipe, and the nozzle sprays the solvent, and the cooperation of the sprayed solvent and the arc plate drives the rotating disk to rotate, and the rotating disk drives the circuit board to rotate, and then the upper electromagnetic nozzle and the lower electromagnetic nozzle are started, and the upper electromagnetic nozzle and the lower electromagnetic nozzle respectively spray the solvent on the top and bottom of the rotating circuit board. Since the circuit board is immersed in the solvent, the top and bottom of the circuit board can be effectively cleaned under the action of the upper electromagnetic nozzle and the lower electromagnetic nozzle.

[0017] In a possible design, the driving structure includes a multi-section cylinder fixed to one side of the cleaning box by a bracket, a moving platform is fixed to the output shaft of the multi-section cylinder, and the moving platform slides on the side of the vertical plate away from the cleaning box, a damping bearing is fixed in the moving platform, and one end of the rotating shaft passes through the damping bearing, a first rack and a second rack are fixed to the side of the vertical plate close to the cleaning box, and the first rack and the second rack are respectively located on both sides of the rotating shaft, and the outer wall of the rotating shaft is fixedly sleeved with two one-way bearings, and the outer rings of the two one-way bearings are respectively fixedly sleeved with a first gear and The second gear, and the first gear is meshed with the first rack, and the second gear is meshed with the second rack. When the first gear and the second gear rotate clockwise, they are locked with the rotating shaft under the action of the one-way bearing; when the rotating shaft moves downward, the rotating shaft rotates clockwise in cooperation with the first gear, the first rack and one of the one-way bearings, so that the circuit board adsorbed by the vacuum suction cup can be placed in the cleaning box for cleaning; when the rotating shaft moves upward, the rotating shaft drives the rotating shaft to rotate clockwise in cooperation with the second rack, the second gear and another one-way bearing, so as to dry the circuit board and store it in the collection frame.

[0018] In a possible design, the collection structure includes a clearance hole arranged in the gantry, the clearance hole cooperates with the collection frame, and a plurality of fixed shells are fixed to the top inner wall of the gantry, and trapezoidal blocks are slidably connected in the plurality of fixed shells, and springs are fixed at the ends of the plurality of trapezoidal blocks that are away from each other, and the ends of the plurality of springs that are away from each other are respectively fixedly connected to the inner wall of one side of the corresponding fixed shell; when the rotating shaft and the mounting plate rotate 180°, the multi-section cylinder continues to push the rotating shaft upward, and the mounting plate pushes the circuit board to extend into the clearance hole. During the upward movement of the circuit board, the circuit board originally in the clearance hole is pushed upward, and then the cleaned circuit board can be braked with the cooperation of the plurality of trapezoidal blocks, and the circuit board unloading operation is automatically completed.

[0019] In a possible design, the inner walls of the cleaning box on both sides, which are away from each other, are connected to floating plates by rotation through a base, and the floating plates are located above the upper rotating tube. A plurality of pull ropes are provided at the bottom of the two floating plates, and the bottom ends of the plurality of pull ropes are respectively wrapped around the outer walls of the corresponding upper rotating tubes. The floating plates drive the upper rotating tubes to swing back and forth under the action of buoyancy; and the plurality of upper electromagnetic nozzles are fixed on one side of the upper rotating tube. When the floating plates swing downward, the upper rotating tube loses the pulling force of the pull ropes, and the upper rotating tube resets and swings under the action of the gravity of the upper electromagnetic nozzles. Therefore, the swing of the floating plates cooperates with the gravity of the upper electromagnetic nozzles to make the upper rotating tube swing back and forth. The upper rotating tube drives the lower rotating tube to swing through the synchronous wheel and the synchronous belt. Therefore, the upper rotating tube and the lower rotating tube drive the upper electromagnetic nozzle and the lower electromagnetic nozzle to clean the circuit board at multiple angles, thereby fully completing the cleaning operation of the circuit board.

[0020] In a possible design, a hydraulic cylinder is fixed to the top of the bracket, and the output shaft of the hydraulic cylinder is fixedly connected to one side of the placement box. A plurality of rubber strips are fixed to the inner walls of the placement box on both sides away from each other, and the circuit board is located between two adjacent rubber strips; the rubber strips can separate two adjacent circuit boards.

[0021] In a possible design, an air compression pump is fixed to the side of the gantry away from the bracket, the air outlet of the air compression pump extends into the gantry through a fixed pipe and is fixed with an air nozzle for drying the circuit board, and a conical cover is fixed to the inner wall of one side of the gantry.

[0022] In a possible design, a plurality of through holes are provided in the upper rotating tube and the lower rotating tube for allowing the upper electromagnetic nozzle and the lower electromagnetic nozzle to contact the water source, and the plurality of upper electromagnetic nozzles on the side close to each other of the two upper rotating tubes are arranged in a staggered manner, and the plurality of lower electromagnetic nozzles on the side close to each other of the two lower rotating tubes are arranged in a staggered manner; through the staggered arrangement of the corresponding plurality of upper electromagnetic nozzles and lower electromagnetic nozzles, it is possible to avoid the water jets from offsetting each other's impact force during later cleaning.

[0023] In a possible design, a plurality of rectangular grooves are provided at the bottom of the collection frame, and a plurality of trapezoidal brake plates are slidably connected in the plurality of rectangular grooves, and a plurality of screws are rotatably connected to the four outer walls of the collection frame, and the screws are threadedly connected to the trapezoidal brake plates through nuts, and the bottom layer of the circuit board can be blocked by the cooperation of the trapezoidal brake plates and the screws, and a limiting plate is fixed at one end of the plurality of trapezoidal brake plates close to each other, and a plurality of limiting plates are cooperated with the inner wall corresponding to the clearance hole on the side away from each other, and the collection frame can be fixed by the limiting plate; the multi-section cylinder pushes the rotating shaft to move upward, and the rotating shaft is installed The plate, rotating disk and vacuum suction cup push the circuit board in the clearance hole to move upward until the circuit board moves to the top of the gantry, and then rotate multiple screws to drive the corresponding trapezoidal brake plate and limit plate to move toward the middle. The multiple trapezoidal brake plates can block the circuit board at the bottom, so that the collection frame can be directly taken out of the gantry and the cleaned circuit board can be transported; in addition, when replacing the collection frame, the trapezoidal brake plate is driven outward, and the collection frame can be fixed on the top of the gantry through the limit plate and the inner wall of the clearance hole. The collection frame and the clearance hole are used to collect the cleaned circuit boards.

[0024] In the present application, a method for using a circuit board washing device comprises the following steps:

[0025] S1. The circuit board is sucked by the vacuum suction cup, and the moving platform and the rotating shaft are driven down by the multi-section cylinder to immerse the circuit board in the solvent in the cleaning box while preventing the rotating shaft from swinging;

[0026] S2, start the booster pump, spray the solvent onto the circuit board through the nozzle, and use the solvent flow to drive the rotating disk to rotate the circuit board; at the same time, start the upper electromagnetic nozzle and the lower electromagnetic nozzle to spray the solvent at multiple angles to achieve comprehensive cleaning of the circuit board;

[0027] S3. After cleaning is completed, the multi-section cylinder drives the shaft to move upward, and the one-way bearing causes the shaft to rotate 180° clockwise to expose the circuit board; the air compressor pump blows out compressed gas to dry the surface of the circuit board;

[0028] S4, continue to drive the rotating shaft upward, push the circuit board into the clearance hole, and use the trapezoidal block to realize automatic unloading of the circuit board;

[0029] S5, the multi-section cylinder drives the shaft to descend, and the first gear and the first rack act to make the shaft and the mounting plate rotate clockwise, preparing for the next round of cleaning; the hydraulic cylinder pushes the placement box, the vacuum suction cup absorbs the new circuit board, and the cleaning and drying process is repeated;

[0030] S6. After cleaning, the multi-section cylinder lifts the shaft again and moves the circuit board to the top of the gantry; the screw drives the trapezoidal brake plate and the limit plate to block the circuit board and replace the collection frame, so as to facilitate the removal of the cleaned circuit board.

[0031] Beneficial effects:

[0032] In the present invention, the movable platform slides on one side of the vertical plate, a damping bearing is fixed in the movable platform, and one end of the rotating shaft passes through the damping bearing, a first rack and a second rack are fixed on one side of the vertical plate, and the outer wall of the rotating shaft is fixedly sleeved with two one-way bearings, and the outer rings of the two one-way bearings are respectively fixedly sleeved with a first gear and a second gear; when the rotating shaft moves downward, the rotating shaft rotates clockwise in cooperation with the first gear, the first rack and one of the one-way bearings, so that the circuit board adsorbed by the vacuum suction cup can be put into the cleaning box for cleaning; when the rotating shaft moves upward, the rotating shaft drives the rotating shaft to rotate clockwise in cooperation with the second rack, the second gear and another one-way bearing, and the circuit board is automatically dried and stored in the collection frame, thereby improving the cleaning efficiency of the circuit board and reducing the labor intensity of the staff;

[0033] In the present invention, an upper rotating tube and a lower rotating tube are rotatably connected in the cleaning box, and a plurality of upper electromagnetic nozzles and a lower electromagnetic nozzle are fixedly connected to one side of the upper rotating tube and the lower rotating tube, respectively. A horizontal plate is fixed in the cleaning box, and a nozzle is fixed on one side of the horizontal plate. A plurality of arc plates are fixed on the outer wall of the rotating disk, and the liquid outlet end of the booster pump is connected with the nozzle through the liquid outlet pipe; the horizontal plate sprays the solvent, and the rotating disk is driven to rotate by the cooperation of the arc plate, and the upper electromagnetic nozzle and the lower electromagnetic nozzle respectively spray the solvent on the top and the bottom of the rotating circuit board. Since the circuit board is immersed in the solvent, the top and the bottom of the circuit board can be effectively cleaned under the action of the upper electromagnetic nozzle and the lower electromagnetic nozzle;

[0034] In the present invention, both inner walls of the cleaning box that are away from each other are rotatably connected with floating plates through a base, and a plurality of pull ropes are provided at the bottom of the two floating plates, and the bottom ends of the plurality of pull ropes are respectively wound around the outer walls of the corresponding upper rotating tubes; the nozzle can make the solvent in the cleaning box present a wave shape during the spraying process, so the floating plate reciprocates under the action of the undulating solvent, and the floating plate drives the upper rotating tube to rotate through the pull rope, and the upper rotating tube is connected to the lower rotating tube through a synchronous wheel and a synchronous belt transmission, so the upper rotating tube and the lower rotating tube drive the upper electromagnetic nozzle and the lower electromagnetic nozzle to clean the circuit board at multiple angles, so as to fully complete the cleaning operation of the circuit board;

[0035] In the present invention, the rotating shaft is driven up and down by a multi-section cylinder to automatically complete the loading, cleaning, drying and unloading operations of the circuit board. The whole process is automated, which not only reduces the labor intensity of the staff but also improves the cleaning efficiency. During the cleaning process, the circuit board can be immersed in the cleaning box, and the top and bottom of the circuit board can be cleaned from different angles, effectively completing the cleaning operation of both sides of the circuit board, greatly improving the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 A schematic diagram of the three-dimensional structure of a circuit board washing device provided in Example 1 of the present invention;

[0037] Figure 2 A schematic diagram of a three-dimensional structure from a first perspective of a circuit board washing device provided in Example 1 of the present invention;

[0038] Figure 3 A schematic diagram of a three-dimensional structure from a second viewing angle of a circuit board washing device provided in Example 1 of the present invention;

[0039] Figure 4 for Figure 3 The enlarged structural diagram at A in the middle;

[0040] Figure 5 A schematic diagram of a three-dimensional exploded structure of a vertical plate, a rotating shaft and a moving platform of a circuit board washing device provided in Example 1 of the present invention;

[0041] Figure 6 A schematic diagram of a three-dimensional exploded structure of a placement box and a bracket of a circuit board washing device provided in Example 1 of the present invention;

[0042] Figure 7 A schematic diagram of the three-dimensional structure of an upper rotating tube, a lower rotating tube, a floating plate and a nozzle of a circuit board washing device provided in Example 1 of the present invention;

[0043] Figure 8 A schematic diagram of a three-dimensional exploded structure of a floating plate, a pull rope and an upper rotating tube of a circuit board washing device provided in Example 1 of the present invention;

[0044] Fig. 9 A schematic diagram of a partial front cross-sectional structure of a gantry and a lower electromagnetic nozzle of a circuit board washing device provided in Example 2 of the present invention;

[0045] Fig.10 for Fig. 9 Enlarged structural diagram at B in the middle.

[0046] In the figure: 1, cleaning box; 2, vertical plate; 3, moving groove; 4, multi-section cylinder; 5, moving platform; 6, damping bearing; 7, rotating shaft; 8, one-way bearing; 9, first gear; 10, first rack; 11, second gear; 12, second rack; 13, mounting plate; 14, rotating plate; 15, vacuum suction cup; 16, upper rotating tube; 17, lower rotating tube; 18, through hole; 19, upper electromagnetic nozzle; 20, lower electromagnetic nozzle; 21, booster pump ; 22. Horizontal plate; 23. Liquid outlet pipe; 24. Nozzle; 25. Floating plate; 26. Pull rope; 27. Gantry; 28. Air compressor pump; 29. ​​Conical cover; 30. Collecting frame; 31. Make way hole; 32. Fixed shell; 33. Trapezoidal block; 34. Spring; 35. Bracket; 36. Placement box; 37. Hydraulic cylinder; 38. Rubber strip; 39. Arc plate; 40. Rectangular groove; 41. Trapezoidal brake plate; 42. Screw; 43. Limit plate. DETAILED DESCRIPTION

[0047] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0048] Example 1

[0049] Reference Figure 1-Figure 8A cleaning device is used in the field of circuit boards, including a cleaning box 1, and a solvent for cleaning circuit boards is contained in the cleaning box 1, and the solvent can be alcohol. Vertical plates 2 are fixed on both sides of the cleaning box 1, and movable grooves 3 are provided in the two vertical plates 2. The same rotating shaft 7 is provided in the two movable grooves 3. The outer wall of the rotating shaft 7 is fixedly sleeved with a mounting plate 13, and the bottom end of the mounting plate 13 is rotatably connected to a rotating disk 14. A plurality of vacuum suction cups 15 are fixed to the bottom of the rotating disk 14 through a connecting rod, and the circuit board can be adsorbed on the bottom of the rotating disk 14 through the vacuum suction cups 15;

[0050] It also includes a plurality of upper electromagnetic nozzles 19 and lower electromagnetic nozzles 20 arranged in the cleaning box 1, and the upper electromagnetic nozzles 19 are located above the lower electromagnetic nozzles 20, and the cooperation of the upper electromagnetic nozzles 19 and the lower electromagnetic nozzles 20 is used to clean the top and bottom of the circuit board, and the outer wall of the rotating disk 14 is fixed with a plurality of arc plates 39;

[0051] It also includes a gantry 27, which is fixed on the top of the cleaning box 1. The top of the gantry 27 is provided with a collecting frame 30 for collecting the cleaned circuit boards;

[0052] The cleaning box 1 also includes a bracket 35 fixed on the top, and a placement box 36 is slidably arranged on the top of the bracket 35 through a slide groove and a slider, and the placement box 36 is used to hold the circuit board to be cleaned.

[0053] Reference Figure 3 and Figure 6 A hydraulic cylinder 37 is fixed on the top of the bracket 35, and the output shaft of the hydraulic cylinder 37 is fixedly connected to one side of the placement box 36. A plurality of rubber strips 38 are fixed to the inner walls of the placement box 36 on both sides away from each other, and the circuit board is located between two adjacent rubber strips 38; the rubber strips 38 can separate two adjacent circuit boards.

[0054] Reference Figure 3 An air compression pump 28 is fixed to one side of the gantry 27 away from the bracket 35 . The air outlet of the air compression pump 28 extends into the gantry 27 through a fixed pipe and is fixed with an air nozzle for drying the circuit board. A conical cover 29 is fixed to the inner wall of one side of the gantry 27 .

[0055] Reference Figure 2 , Figure 3 and Figure 7The device also includes two groups of cleaning structures arranged on both sides of the cleaning box 1, which are used to clean the top and bottom of the circuit board; the cleaning structure includes a booster pump 21 fixed on one side of the cleaning box 1, and the liquid inlet end of the booster pump 21 extends into the cleaning box 1 through a pipeline, and an upper rotating tube 16 and a lower rotating tube 17 are rotatably connected in the cleaning box 1, and the upper rotating tube 16 is located above the lower rotating tube 17, and a plurality of upper electromagnetic nozzles 19 and lower electromagnetic nozzles 20 are respectively fixedly connected to one side of the upper rotating tube 16 and the lower rotating tube 17, and the upper rotating tube 16 and the lower rotating tube 17 are connected by synchronous wheels and synchronous belts to drive the upper rotating tube 16 and the lower rotating tube 17 to rotate synchronously, and a horizontal plate 22 is fixed in the cleaning box 1, and a nozzle 24 is fixed on one side of the horizontal plate 22, and the nozzle 2 4 cooperates with the arc plate 39 to drive the rotating disk 14 to rotate. The liquid outlet end of the booster pump 21 is fixed with a liquid outlet pipe 23, one end of the liquid outlet pipe 23 extends into the cleaning box 1 and is connected with the nozzle 24; the booster pump 21 transports the solvent in the cleaning box 1 to the nozzle 24 through the liquid outlet pipe 23, the nozzle 24 sprays the solvent, and the sprayed solvent cooperates with the arc plate 39 to drive the rotating disk 14 to rotate, the rotating disk 14 drives the circuit board to rotate, and then the upper electromagnetic nozzle 19 and the lower electromagnetic nozzle 20 are started, and the upper electromagnetic nozzle 19 and the lower electromagnetic nozzle 20 respectively spray the solvent on the top and bottom of the rotating circuit board. Since the circuit board is immersed in the solvent, the top and the bottom of the circuit board can be effectively cleaned under the action of the upper electromagnetic nozzle 19 and the lower electromagnetic nozzle 20.

[0056] Reference Figure 2 , Figure 7 and Figure 8 , the inner walls of the cleaning box 1 on both sides away from each other are connected to the floating plates 25 through the base rotation, and the floating plates 25 are located above the upper rotating tube 16, and the bottoms of the two floating plates 25 are provided with a plurality of pull ropes 26, and the bottom ends of the plurality of pull ropes 26 are respectively wound around the outer walls of the corresponding upper rotating tubes 16, and the floating plates 25 drive the upper rotating tubes 16 to swing back and forth under the action of buoyancy; and the plurality of upper electromagnetic nozzles 19 are fixed on one side of the upper rotating tube 16, when the floating plates 25 swing downward, the upper rotating tube 16 loses the pulling force of the pull ropes 26, and the upper rotating tube 16 resets and swings under the action of the gravity of the upper electromagnetic nozzles 19, so the swing of the floating plates 25 cooperates with the gravity of the upper electromagnetic nozzles 19 to make the upper rotating tube 16 swing back and forth, and the upper rotating tube 16 drives the lower rotating tube 17 to swing through the synchronous wheel and the synchronous belt, so the upper rotating tube 16 and the lower rotating tube 17 drive the upper electromagnetic nozzles 19 and the lower electromagnetic nozzles 20 to clean the circuit board at multiple angles, and fully complete the cleaning operation of the circuit board.

[0057] Reference Figure 7 and Figure 8A plurality of through holes 18 are provided in the upper rotating tube 16 and the lower rotating tube 17 for making the upper electromagnetic nozzles 19 and the lower electromagnetic nozzles 20 contact the water source. The plurality of upper electromagnetic nozzles 19 on the side close to each other of the two upper rotating tubes 16 are arranged in a staggered manner, and the plurality of lower electromagnetic nozzles 20 on the side close to each other of the two lower rotating tubes 17 are arranged in a staggered manner. Through the staggered arrangement of the corresponding plurality of upper electromagnetic nozzles 19 and lower electromagnetic nozzles 20, it is possible to avoid the water jets from offsetting each other's impact force during later cleaning.

[0058] Reference Figure 2 , Figure 3 and Figure 5 The device also includes two sets of driving structures respectively arranged on the two sides of the cleaning box 1 away from each other, which are used to drive the rotating shaft 7 to rise and fall, so as to complete the cleaning, collection and loading of the circuit board; the driving structure includes a multi-section cylinder 4 fixed to one side of the cleaning box 1 through a bracket 35, and the output shaft of the multi-section cylinder 4 is fixed with a moving platform 5, and the moving platform 5 slides on the side of the vertical plate 2 away from the cleaning box 1, and a damping bearing 6 is fixed in the moving platform 5, and one end of the rotating shaft 7 passes through the damping bearing 6, and a first rack 10 and a second rack 12 are fixed on the side of the vertical plate 2 close to the cleaning box 1, and the first rack 10 and the second rack 12 are respectively located on both sides of the rotating shaft 7, and the outer wall of the rotating shaft 7 is fixedly sleeved with two one-way bearings 8, and the two one-way bearings 8 are The outer ring is respectively fixed with a first gear 9 and a second gear 11, and the first gear 9 is meshed with the first rack 10, and the second gear 11 is meshed with the second rack 12. When the first gear 9 and the second gear 11 rotate clockwise, they are locked with the rotating shaft 7 under the action of the one-way bearing 8; when the rotating shaft 7 moves downward, the rotating shaft 7 rotates clockwise in cooperation with the first gear 9, the first rack 10 and one of the one-way bearings 8, and the circuit board adsorbed by the vacuum suction cup 15 can be placed in the cleaning box 1 for cleaning; when the rotating shaft 7 moves upward, the rotating shaft 7 rotates clockwise in cooperation with the second rack 12, the second gear 11 and another one-way bearing 8, which is used to dry the circuit board and store it in the collection frame 30.

[0059] Reference Figure 3 and Figure 4The device also includes a collecting structure arranged in the gantry 27 for automatically completing the collection of the cleaned circuit boards; the collecting structure includes a clearance hole 31 arranged in the gantry 27, the clearance hole 31 cooperates with the collecting frame 30, a plurality of fixed shells 32 are fixed to the top inner wall of the gantry 27, and a plurality of fixed shells 32 are slidably connected with trapezoidal blocks 33, and a spring 34 is fixed to one end of the plurality of trapezoidal blocks 33 away from each other, and a plurality of springs 34 are respectively fixedly connected to one side inner wall of the corresponding fixed shell 32 at one end away from each other; when the rotating shaft 7 and the mounting plate 13 rotate 180°, the multi-section cylinder 4 continues to push the rotating shaft 7 to move upward, and the mounting plate 13 pushes the circuit board to extend into the clearance hole 31. During the upward movement of the circuit board, the circuit board originally in the clearance hole 31 is pushed upward, and then the cleaned circuit board can be braked with the cooperation of the plurality of trapezoidal blocks 33, and the unloading operation of the circuit board is automatically completed.

[0060] In the present application, the circuit board may be in any of a rectangular and a circular shape.

[0061] Example 2

[0062] refer to Fig. 9 and Fig.10 , based on the improvement of Example 1: a plurality of rectangular grooves 40 are provided at the bottom of the collection frame 30, and a trapezoidal brake plate 41 is slidably connected in each of the plurality of rectangular grooves 40, and a plurality of screws 42 are rotatably connected to the four outer walls of the collection frame 30, and the screws 42 are threadedly connected to the trapezoidal brake plates 41 through nuts, and the bottommost circuit board can be blocked by the cooperation of the trapezoidal brake plates 41 and the screws 42, and the ends of the plurality of trapezoidal brake plates 41 close to each other are fixed with a limiting plate 43, and the sides of the plurality of limiting plates 43 away from each other are matched with the corresponding inner walls of the clearance holes 31, and the collection frame 30 can be fixed by the limiting plate 43; the multi-section cylinder 4 pushes the rotating shaft 7 to move upward, and the rotating shaft 7 passes through the mounting plate 13, The rotating disk 14 and the vacuum suction cup 15 push the circuit board in the clearance hole 31 upward until the circuit board moves to the top of the gantry 27, and then the multiple screws 42 are rotated to drive the corresponding trapezoidal brake plates 41 and the limit plates 43 to move toward the middle. The multiple trapezoidal brake plates 41 can block the circuit boards on the bottom layer, so that the collection frame 30 can be directly taken out of the gantry 27 and the cleaned circuit boards can be transported; in addition, when replacing the collection frame 30, the trapezoidal brake plates 41 are driven outward, and the limit plates 43 are fitted with the inner walls of the clearance holes 31, so that the collection frame 30 can be fixed on the top of the gantry 27, and the collection frame 30 and the clearance holes 31 are used together to collect the cleaned circuit boards.

[0063] A method for using a circuit board washing device comprises the following steps:

[0064] S1. The circuit board to be cleaned is sucked by the vacuum suction cup 15, and the output shaft of the multi-section cylinder 4 drives the moving platform 5 and the rotating shaft 7 to move downward. At this time, the first gear 9 and the second gear 11 are disengaged from the first rack 10 and the second rack 12 respectively, and the rotating shaft 7 drives the circuit board to move downward into the cleaning box 1 through the mounting plate 13 and the rotating disk 14 until the solvent in the cleaning box 1 submerges the circuit board, and the circuit board is just located between the upper rotating tube 16 and the lower rotating tube 17. Under the action of the damping bearing 6, the rotating shaft 7 and the mounting plate 13 can be prevented from swinging;

[0065] S2, the booster pump 21 transports the solvent in the cleaning box 1 to the nozzle 24 through the liquid outlet pipe 23, and the nozzle 24 sprays the solvent, and the sprayed solvent cooperates with the arc plate 39 to drive the rotating disk 14 to rotate, and the rotating disk 14 drives the circuit board to rotate, and then the upper electromagnetic nozzle 19 and the lower electromagnetic nozzle 20 are started, and the upper electromagnetic nozzle 19 and the lower electromagnetic nozzle 20 respectively spray the solvent on the top and bottom of the rotating circuit board. Since the circuit board is immersed in the solvent, the upper electromagnetic nozzle 19 and the lower electromagnetic nozzle 20 can effectively The top and bottom of the circuit board are cleaned. In addition, the nozzle 24 can make the solvent in the cleaning box 1 present a wave shape during the spraying process, so the floating plate 25 reciprocates under the action of the undulating solvent, and the floating plate 25 drives the upper rotating tube 16 to rotate through the pull rope 26, and the upper rotating tube 16 and the lower rotating tube 17 are connected by a synchronous wheel and a synchronous belt transmission, so the upper rotating tube 16 and the lower rotating tube 17 drive the upper electromagnetic nozzle 19 and the lower electromagnetic nozzle 20 to clean the circuit board at multiple angles, so as to fully complete the cleaning operation of the circuit board;

[0066] S3. After cleaning is completed, the multi-section cylinder 4 drives the rotating shaft 7 to move upward through the moving platform 5, and the second gear 11 begins to mesh with the second rack 12. The second gear 11 is locked with the rotating shaft 7 under the action of the one-way bearing 8, and the first gear 9 is in an active state with the rotating shaft 7 under the action of the one-way bearing 8. Therefore, when the rotating shaft 7 moves upward, the rotating shaft 7 rotates clockwise. When the second gear 11 is disengaged from the second rack 12 during the upward movement, the rotating shaft 7 drives the rotating disk 14 to rotate exactly 180°. The circuit board is located at the top, and when the mounting plate 13 drives the circuit board to rotate clockwise, the air outlet of the air compression pump 28 sprays compressed gas to dry the solvent on the surface of the circuit board;

[0067] S4, when the rotating shaft 7 and the mounting plate 13 rotate 180°, the multi-section cylinder 4 continues to push the rotating shaft 7 upward, and the mounting plate 13 pushes the circuit board to extend into the clearance hole 31. During the upward movement of the circuit board, the circuit board originally in the clearance hole 31 is pushed upward, and then the cleaned circuit board can be braked with the cooperation of the multiple trapezoidal blocks 33, and the unloading operation of the circuit board is automatically completed;

[0068] S5. After the circuit board is unloaded, the multi-section cylinder 4 drives the shaft 7 to move downward, and the second gear 11 rotates counterclockwise under the action of the second rack 12. The second gear 11 is in an active state with the shaft 7 under the action of the one-way bearing 8, and the first gear 9 rotates clockwise under the action of the first rack 10. The first gear 9 is in a locked state with the shaft 7 under the action of the one-way bearing 8. Therefore, during the downward movement, the shaft 7 drives the mounting plate 13 to rotate clockwise until the shaft 7 and the mounting plate 13 rotate 90° clockwise, and the mounting plate 13 is placed horizontally and rotates. The plate 14 cooperates with the placement box 36, and the output shaft of the hydraulic cylinder 37 pushes the placement box 36 toward the direction of the rotating shaft 7. The vacuum suction cup 15 extends into the placement box 36 and touches the circuit board on the far left. The vacuum suction cup 15 completes the adsorption of the circuit board. Then the hydraulic cylinder 37 drives the placement box 36 to reset, and the adsorbed circuit board is separated from the placement box 36. Then the rotating shaft 7 continues to move downward until the rotating shaft 7 and the mounting plate 13 rotate 90 degrees again, and then repeat steps S1, S2, S3 and S4 to complete the cleaning, drying and collection of the circuit board.

[0069] S6. When the circuit board is cleaned, the multi-section cylinder 4 pushes the rotating shaft 7 upward, and the rotating shaft 7 pushes the circuit board in the clearance hole 31 upward through the mounting plate 13, the rotating disk 14 and the vacuum suction cup 15 until the circuit board moves to the top of the gantry 27, and then rotates the multiple screws 42 to drive the corresponding trapezoidal brake plates 41 and the limit plates 43 to move toward the middle. The multiple trapezoidal brake plates 41 can block the circuit boards on the bottom layer, so that the collection frame 30 can be directly taken out of the gantry 27 and the cleaned circuit boards can be transported; in addition, when replacing the collection frame 30, the trapezoidal brake plates 41 are driven outward, and the limit plates 43 are fitted with the inner wall of the clearance hole 31, so that the collection frame 30 can be fixed on the top of the gantry 27, and the collection frame 30 and the clearance hole 31 are used together to collect the cleaned circuit boards.

[0070] However, as is well known to those skilled in the art, the working principles and wiring methods of the upper electromagnetic nozzle 19, the lower electromagnetic nozzle 20, the booster pump 21, the hydraulic cylinder 37 and the multi-section cylinder 4 are commonplace, and are all conventional means or common knowledge, and will not be elaborated here. Those skilled in the art can make any optional selections according to their needs or convenience.

[0071] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A circuit board washing device, characterized in that: The cleaning box (1) comprises a cleaning box (1) in which a solvent for cleaning circuit boards is contained, vertical plates (2) are fixed on both sides of the cleaning box (1), movable grooves (3) are provided in the two vertical plates (2), a same rotating shaft (7) is provided in the two movable grooves (3), a mounting plate (13) is fixedly sleeved on the outer wall of the rotating shaft (7), a rotating disk (14) is rotatably connected to the bottom end of the mounting plate (13), a plurality of vacuum suction cups (15) are fixed to the bottom of the rotating disk (14) via connecting rods, and the circuit board can be adsorbed on the bottom of the rotating disk (14) via the vacuum suction cups (15); It also includes a plurality of upper electromagnetic nozzles (19) and lower electromagnetic nozzles (20) arranged in the cleaning box (1), wherein the upper electromagnetic nozzles (19) are located above the lower electromagnetic nozzles (20), and the upper electromagnetic nozzles (19) and the lower electromagnetic nozzles (20) cooperate to clean the top and bottom of the circuit board, and the outer wall of the rotating disk (14) is fixed with a plurality of arc-shaped plates (39); It also includes a gantry (27) fixed on the top of the cleaning box (1), and a collection frame (30) is provided on the top of the gantry (27) for collecting the cleaned circuit boards; It also includes a bracket (35) fixed on the top of the cleaning box (1), and a placement box (36) is slidably arranged on the top of the bracket (35) through a slide groove and a slider, and the placement box (36) is used to hold the circuit board to be cleaned; Two sets of cleaning structures are respectively arranged on two sides of the cleaning box (1) and are used to clean the top and bottom of the circuit board; Two sets of driving structures are respectively arranged on two sides of the cleaning box (1) that are away from each other, and are used to drive the rotating shaft (7) to rise and fall, so as to complete the cleaning, collection and loading of the circuit boards; A collection structure, arranged in the gantry (27), for automatically collecting the cleaned circuit boards; The cleaning structure comprises a booster pump (21) fixed to one side of the cleaning box (1); a liquid inlet end of the booster pump (21) extends into the cleaning box (1) through a pipeline; an upper rotating tube (16) and a lower rotating tube (17) are rotatably connected in the cleaning box (1); the upper rotating tube (16) is located above the lower rotating tube (17); a plurality of upper electromagnetic nozzles (19) and lower electromagnetic nozzles (20) are respectively fixedly connected to one side of the upper rotating tube (16) and the lower rotating tube (17); and the upper rotating tube (16) and the lower rotating tube (17) are connected to the upper rotating tube (16) and the lower rotating tube (17). The moving tube (17) is connected by a synchronous wheel and a synchronous belt transmission, and is used to drive the upper rotating tube (16) and the lower rotating tube (17) to rotate synchronously. A transverse plate (22) is fixed in the cleaning box (1), a nozzle (24) is fixed on one side of the transverse plate (22), and the nozzle (24) cooperates with the arc plate (39) to drive the rotating disk (14) to rotate. A liquid outlet pipe (23) is fixed at the liquid outlet end of the booster pump (21), and one end of the liquid outlet pipe (23) extends into the cleaning box (1) and is connected to the nozzle (24); The driving structure comprises a multi-section cylinder (4) fixed to one side of the cleaning box (1) through a bracket (35); a moving platform (5) is fixed to the output shaft of the multi-section cylinder (4), and the moving platform (5) slides on the side of the vertical plate (2) away from the cleaning box (1); a damping bearing (6) is fixed inside the moving platform (5), and one end of the rotating shaft (7) passes through the damping bearing (6); a first rack (10) and a second rack (12) are fixed to the side of the vertical plate (2) close to the cleaning box (1), and the first rack (10) and the second rack (12) are respectively located on both sides of the rotating shaft (7); two one-way bearings (8) are fixedly sleeved on the outer wall of the rotating shaft (7); the outer rings of the two one-way bearings (8) are respectively fixedly sleeved with a first gear (9) and a second gear (11), and the first gear (9) is meshed with the first rack (10), and the second gear (11) is meshed with the second rack (12); The collecting structure comprises a clearance hole (31) arranged in the gantry (27), the clearance hole (31) cooperates with the collecting frame (30), a plurality of fixed shells (32) are fixed to the top inner wall of the gantry (27), a plurality of fixed shells (32) are slidably connected with trapezoidal blocks (33) in the plurality of fixed shells (32), a spring (34) is fixed to one end of the plurality of trapezoidal blocks (33) away from each other, and the ends of the plurality of springs (34) away from each other are respectively fixedly connected to one side inner wall of the corresponding fixed shell (32); The inner walls of the cleaning box (1) on both sides away from each other are rotatably connected to floating plates (25) via a base, and the floating plates (25) are located above the upper rotating tube (16). A plurality of pull ropes (26) are provided at the bottom of the two floating plates (25), and the bottom ends of the plurality of pull ropes (26) are respectively wound around the outer walls of the corresponding upper rotating tubes (16). The floating plates (25) drive the upper rotating tubes (16) to swing back and forth under the action of buoyancy.

2. A circuit board washing device according to claim 1, characterized in that: A hydraulic cylinder (37) is fixed on the top of the bracket (35), and an output shaft of the hydraulic cylinder (37) is fixedly connected to one side of the placement box (36). A plurality of rubber strips (38) are fixed to inner walls of two sides of the placement box (36) that are away from each other, and the circuit board is located between two adjacent rubber strips (38).

3. A circuit board washing device according to claim 2, characterized in that: An air compression pump (28) is fixed to a side of the gantry (27) away from the bracket (35); an air outlet of the air compression pump (28) extends into the gantry (27) through a fixed pipe and is fixed with an air nozzle for drying the circuit board; a conical cover (29) is fixed to an inner wall of one side of the gantry (27).

4. A circuit board washing device according to claim 3, characterized in that: A plurality of through holes (18) are provided in each of the upper rotating tube (16) and the lower rotating tube (17); a plurality of upper electromagnetic nozzles (19) are arranged in a staggered manner on one side of the two upper rotating tubes (16) close to each other; and a plurality of lower electromagnetic nozzles (20) are arranged in a staggered manner on one side of the two lower rotating tubes (17) close to each other.

5. A circuit board washing device according to claim 4, characterized in that: The bottom of the collection frame (30) is provided with a plurality of rectangular grooves (40), and a trapezoidal brake plate (41) is slidably connected in each of the plurality of rectangular grooves (40). The four outer walls of the collection frame (30) are rotatably connected with a plurality of screw rods (42), and the screw rods (42) are threadedly connected to the trapezoidal brake plate (41) through nuts. The bottommost circuit board can be blocked by the cooperation of the trapezoidal brake plate (41) and the screw rods (42). A limiting plate (43) is fixed to one end of the plurality of trapezoidal brake plates (41) that are close to each other, and a side of the plurality of limiting plates (43) that are away from each other cooperates with the corresponding inner wall of the clearance hole (31), and the collection frame (30) can be fixed by the limiting plate (43).

6. The method for using a circuit board washing device according to claim 5, characterized in that: The following steps are involved: S1, using the vacuum suction cup (15) to absorb the circuit board, using the multi-section cylinder (4) to drive the moving platform (5) and the rotating shaft (7) to descend, so that the circuit board is immersed in the solvent in the cleaning box (1), while preventing the rotating shaft (7) from swinging; S2, starting the booster pump (21), spraying the solvent onto the circuit board through the nozzle (24), and using the flow of the solvent to drive the rotating disk (14) to rotate the circuit board; at the same time, starting the upper electromagnetic spray head (19) and the lower electromagnetic spray head (20), spraying the solvent at multiple angles, and achieving comprehensive cleaning of the circuit board; S3. After cleaning is completed, the multi-section cylinder (4) drives the rotating shaft (7) to move upward, and the one-way bearing (8) causes the rotating shaft (7) to rotate 180° clockwise to expose the circuit board; the air compression pump (28) blows out compressed gas to dry the surface of the circuit board; S4, continue to drive the rotating shaft (7) upward, push the circuit board into the clearance hole (31), and use the trapezoidal block (33) to realize automatic unloading of the circuit board; S5, the multi-section cylinder (4) drives the rotating shaft (7) to descend, and the first gear (9) acts on the first rack (10) to make the rotating shaft (7) and the mounting plate (13) rotate clockwise, preparing for the next round of cleaning, the hydraulic cylinder (37) pushes the placement box (36), the vacuum suction cup (15) absorbs the new circuit board, and the cleaning and drying process is repeated; S6. After cleaning is completed, the multi-section cylinder (4) lifts the rotating shaft (7) again, moves the circuit board to the top of the gantry (27), and drives the trapezoidal brake plate (41) and the limit plate (43) by adjusting the screw (42) to block the circuit board and replace the collection frame (30), so as to facilitate the removal of the cleaned circuit board.

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