Ultrasonic cleaning device for circuit board

Abstract

The circuit board ultrasonic cleaning device comprises a cleaning box, a supporting frame and a motor, the cleaning box is provided with a cleaning tank with the top open, a plurality of ultrasonic generators are fixedly arranged on the bottom wall of the cleaning tank, the supporting frame is arranged in the cleaning tank and comprises a first comb tooth frame and a second comb tooth frame, and the first comb tooth frame and the second comb tooth frame are matched in a staggered mode. The tops of multiple comb teeth of the first comb tooth frame and the second comb tooth frame are each provided with a limiting groove, the tops of the first comb tooth frame and the second comb tooth frame are each connected with a lifting mechanism, and the motor is fixedly arranged on the outer side wall of the cleaning box and used for enabling the two lifting mechanisms to drive the first comb tooth frame and the second comb tooth frame to move up and down. Through the arrangement, the intermittent time between two times of cleaning work can be shortened, the working efficiency is improved, meanwhile, it can be ensured that enough gaps are formed between the adjacent circuit boards so that cleaning agents can circulate, and the cleaning effect on the circuit boards is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of circuit board processing, and particularly relates to an ultrasonic cleaning device for circuit boards. Background Art

[0002] A circuit board is a carrier for electronic components. During the production process, pollutants including flux, adhesives, dust, and debris adhere to the surface of the circuit board. If these pollutants cannot be removed, it is likely to cause the circuit board to fail and affect its service life.

[0003] A Chinese patent with the publication number CN221043413U discloses a cleaning device for circuit board production and manufacturing. The solution includes a cleaning tank. A support plate is fixedly arranged at the upper end of the cleaning tank. An electric push rod is fixedly arranged on the support plate. A cover plate is fixedly arranged at the bottom of the electric push rod. Placing mesh frames are equidistantly arranged at the bottom of the cover plate. By using multiple placing mesh frames arranged at intervals, multiple circuit boards can be cleaned simultaneously, and the multiple circuit boards can be prevented from overlapping with each other, improving the cleaning effect.

[0004] When the above solution is used, it is necessary to put the circuit board into the placing mesh frame before the start of cleaning and take out the circuit board after the end of cleaning. When a large number of circuit boards need to be cleaned, the preparation time between adjacent two cleaning operations is relatively long, resulting in low cleaning efficiency. Content of the Utility Model

[0005] The utility model aims to provide an ultrasonic cleaning device for circuit boards to solve the problem of low cleaning efficiency existing in the above solution.

[0006] To achieve the above purpose, the utility model provides the following technical solution:

[0007] An ultrasonic cleaning device for circuit boards includes a cleaning tank, a support frame, and a motor. The cleaning tank has a cleaning trough with an open top. A plurality of ultrasonic generators are fixedly arranged on the bottom wall of the cleaning trough. The support frame is arranged in the cleaning trough and includes a first comb-shaped frame and a second comb-shaped frame that are misaligned and matched with each other. Limiting grooves are respectively arranged at the tops of a plurality of comb teeth of the first comb-shaped frame and the second comb-shaped frame. And a lifting mechanism is respectively connected to the tops of the first comb-shaped frame and the second comb-shaped frame. The two lifting mechanisms are respectively located on the front and rear sides of the cleaning tank. The motor is fixedly arranged on the outer side wall of the cleaning tank and is used to drive the first comb-shaped frame and the second comb-shaped frame to move up and down respectively by the two lifting mechanisms.

[0008] The principle and effect of this technical solution:

[0009] In the initial state, the second comb tooth rack is immersed in the cleaning agent in the cleaning tank, and the first comb tooth rack is located above the cleaning agent. A plurality of circuit boards are clamped in the corresponding limiting grooves on the first comb tooth rack. The motor drives the lifting mechanism connected to the first comb tooth rack to drive the first comb tooth rack to move downward until the circuit boards at the top of the first comb tooth rack are immersed in the cleaning agent. Then, the ultrasonic generator is started to clean this part of the circuit boards. While lowering the first comb tooth rack, the second comb tooth rack is lifted by the corresponding lifting mechanism, and a plurality of circuit boards are clamped in the corresponding limiting grooves on the second comb tooth rack. After the circuit boards at the top of the first comb tooth rack are cleaned, the first comb tooth rack is lifted and the second comb tooth rack is lowered, the circuit boards at the top of the first comb tooth rack are disassembled, and a plurality of new circuit boards are installed. The above steps are repeated.

[0010] Through the above settings, while the circuit boards on the first comb tooth rack are being cleaned, the circuit boards on the second comb tooth rack can be disassembled and new circuit boards can be installed, shortening the intermittent time between two cleaning operations, improving work efficiency. At the same time, because the comb teeth of the first comb tooth rack and the comb teeth of the second comb tooth rack are mutually misaligned, there is enough space between adjacent circuit boards for the cleaning agent to flow through, ensuring the cleaning effect.

[0011] In the present utility model, the lifting mechanism includes a screw rod, a slider and a support plate. The screw rod is rotatably arranged vertically outside the cleaning box. The slider is sleeved on the screw rod in a matching manner, and the outer side wall of the slider is in sliding contact with the outer side wall of the cleaning box. The support plate is in a gate shape, and the bottom of one end of the support plate is fixedly connected to the top of the slider. The tops of the first comb tooth rack and the second comb tooth rack are respectively fixedly connected to the bottom of the other end of the corresponding support plate of the lifting mechanism.

[0012] In the present utility model, a second pulley is fixedly sleeved on the side wall of the rear screw rod. A first pulley is rotatably arranged at the bottom of the front side of the cleaning box below the cleaning tank. A vertical rod is fixedly arranged along the axial direction at the top of the first pulley, and a third gear is fixedly sleeved outside the vertical rod. A second gear meshing with the third gear is fixedly sleeved on the side wall of the front screw rod. A first gear meshing with the second gear is fixedly sleeved on the output shaft of the motor. A transmission belt is wound around the first pulley and the second pulley.

[0013] The principle and effect of this technical solution:

[0014] The motor drives the first gear to rotate. Since the first gear and the second gear are meshed, the front screw rod rotates accordingly. Since the second gear and the third gear are meshed, the vertical rod and the first pulley are driven to rotate. Since the transmission belt is wound around the first pulley and the second pulley, the rear screw rod rotates in a direction opposite to that of the front screw rod. When the screw rod rotates, the outer side wall of the cleaning box restricts the slider from rotating accordingly, so that the slider moves up and down as the screw rod rotates. Since the two screw rods rotate in opposite directions, when one slider moves upward, the other slider moves downward.

[0015] With the above settings, the purpose of using the motor to drive the first comb tooth rack and the second comb tooth rack to move up and down respectively by the two lifting mechanisms is achieved.

[0016] In the present utility model, at the top of the inner side wall of the cleaning tank, an installation groove penetrating through the outer side wall of the cleaning box is arranged horizontally, and a plurality of air blowers are linearly arranged in the installation groove.

[0017] In the present utility model, a filter screen is fixedly arranged at the rear side of the air blower in the installation groove.

[0018] The principle and effect of this technical solution:

[0019] When the first comb tooth rack or the second comb tooth rack carries a plurality of circuit boards that have completed the cleaning work and moves upward to separate from the cleaning agent, the motor blows the air outside the cleaning box towards the circuit boards to remove the water stains attached to the surfaces of the circuit boards, and the filter screen intercepts the pollutants in the air outside the cleaning box.

[0020] Through the above settings, it is possible to remove water from the circuit board in a timely manner after the cleaning work of the circuit board is completed, facilitating the next process and further improving the processing efficiency of the circuit board.

[0021] In the present utility model, a drain pipe is communicatively arranged at the bottom of the inner side wall of the cleaning tank, and a valve is arranged on the drain pipe. Through the above settings, it is possible to drain the sewage in the cleaning tank after the cleaning work is completed and clean the inner side wall of the cleaning tank, avoiding pollutants from adhering to the inner side wall of the cleaning tank and ensuring the cleaning effect on the circuit board.

[0022] In the present utility model, elastic rubber strips are respectively fixedly arranged on the left and right inner side walls of the limiting groove along the length direction of the limiting groove, and there is a gap between the two elastic rubber strips. Through the above settings, it is possible to prevent the surface of the circuit board from being damaged due to friction with the inner side wall of the limiting groove, and at the same time, the elastic rubber strips can press the circuit board tightly, improving the stability of the circuit board in the limiting groove. Description of the Drawings

[0023] Figure 1 Is an axonometric view of the overall structure of the present utility model;

[0024] Figure 2 Is an axonometric sectional view of the present utility model;

[0025] Figure 3 Is the disassembly of the components of the present utility model Figure 1 ;

[0026] Figure 4 Is the disassembly of the components of the present utility model Figure 2 ;

[0027] Figure 5 IsFigure 4 Enlarged view at position A in the [device]. Specific implementation mode

[0028] The present utility model will be further described in detail below in conjunction with the accompanying drawings and the implementation mode:

[0029] The reference numerals in the attached drawings of the specification include: 10, cleaning tank; 11, cleaning trough; 12, ultrasonic generator; 13, installation groove; 21, first comb tooth rack; 22, second comb tooth rack; 30, limiting groove; 31, elastic rubber strip; 40, lifting mechanism; 41, screw rod; 42, slider; 43, support plate; 50, motor; 61, first gear; 62, second gear; 63, third gear; 64, first belt pulley; 641, vertical rod; 65, second belt pulley; 66, transmission belt; 70, blower; 80, drain pipe; 81, valve.

[0030] As shown in the attached Figures 1-5 drawing, the present utility model discloses a circuit board ultrasonic cleaning device, including a cleaning tank 10, a support frame and a motor 50. The cleaning tank 10 has a cleaning trough 11 with an open top. A plurality of ultrasonic generators 12 are fixedly arranged on the bottom wall of the cleaning trough 11. The support frame is arranged in the cleaning trough 11 and includes a first comb tooth rack 21 and a second comb tooth rack 22 that are mutually misaligned and matched. Limiting grooves 30 are respectively arranged at the tops of the multiple comb teeth of the first comb tooth rack 21 and the second comb tooth rack 22. And a lifting mechanism 40 is respectively connected to the tops of the first comb tooth rack 21 and the second comb tooth rack 22. The two lifting mechanisms 40 are respectively located on the front and back sides of the cleaning tank 10. The motor 50 is fixedly arranged on the outer side wall of the cleaning tank 10 and is used to drive the first comb tooth rack 21 and the second comb tooth rack 22 to move up and down respectively by the two lifting mechanisms 40.

[0031] In this embodiment, the lifting mechanism 40 includes a screw rod 41, a slider 42 and a support plate 43. The screw rod 41 is rotatably arranged vertically outside the cleaning tank 10. The slider 42 is sleeved on the screw rod 41 in a matching manner, and the outer side wall of the slider 42 is in sliding contact with the outer side wall of the cleaning tank 10. The support plate 43 is in a gate shape. One end of the bottom of the support plate 43 is fixedly connected to the top of the slider 42. The tops of the first comb tooth rack 21 and the second comb tooth rack 22 are respectively fixedly connected to the other end of the bottom of the support plate 43 of the corresponding lifting mechanism 40.

[0032] In this embodiment, a second pulley 65 is fixedly sleeved on the side wall of the rear screw 41. At the bottom of the front side of the cleaning tank 10, a first pulley 64 is rotatably arranged below the cleaning tank 11. A vertical rod 641 is fixedly arranged along the axial direction of the top of the first pulley 64. A third gear 63 is fixedly sleeved outside the vertical rod 641. A second gear 62 meshing with the third gear 63 is fixedly sleeved on the side wall of the front screw 41. A first gear 61 meshing with the second gear 62 is fixedly sleeved on the output shaft of the motor 50. A transmission belt 66 is wound around the first pulley 64 and the second pulley 65.

[0033] In this embodiment, at the top of the inner side wall of the cleaning tank 11, an installation groove 13 penetrating through the outer side wall of the cleaning tank 10 is arranged horizontally. A plurality of air blowers 70 are linearly arranged in the installation groove 13.

[0034] In this embodiment, a filter screen is fixedly arranged at the rear side of the air blower 70 in the installation groove 13.

[0035] In this embodiment, a drain pipe 80 is communicated with the bottom of the inner side wall of the cleaning tank 11. A valve 81 is arranged on the drain pipe 80.

[0036] In this embodiment, elastic rubber strips 31 are respectively fixedly arranged on the left and right inner side walls of the limiting groove 30 along the length direction of the limiting groove 30. There is a gap between the two elastic rubber strips 31.

[0037] The specific implementation process is as follows:

[0038] In the initial state, the second comb tooth frame 22 is immersed in the cleaning agent in the cleaning tank 11, and the first comb tooth frame 21 is located above the cleaning agent. A plurality of circuit boards are clamped in the corresponding limiting grooves 30 on the first comb tooth frame 21, so that the motor 50 drives the lifting mechanism 40 connected to the first comb tooth frame 21 to drive the first comb tooth frame 21 to move downward until the circuit boards at the top of the first comb tooth frame 21 are immersed in the cleaning agent. The ultrasonic generator 12 is started to clean this part of the circuit boards. While lowering the first comb tooth frame 21, the second comb tooth frame 22 is lifted by the corresponding lifting mechanism 40, and a plurality of circuit boards are clamped in the corresponding limiting grooves 30 on the second comb tooth frame 22. After the circuit boards at the top of the first comb tooth frame 21 are cleaned, the first comb tooth frame 21 is lifted and the second comb tooth frame 22 is lowered. The circuit boards at the top of the first comb tooth frame 21 are disassembled, and a plurality of new circuit boards are installed. The above steps are repeated.

[0039] The motor 50 drives the first gear 61 to rotate. Since the first gear 61 meshes with the second gear 62, the front screw 41 is rotated accordingly. Since the second gear 62 meshes with the third gear 63, the vertical rod 641 and the first pulley 64 are driven to rotate. Since the transmission belt 66 is wound around the first pulley 64 and the second pulley 65, the rear screw 41 rotates in a direction opposite to that of the front screw 41. When the screw 41 rotates, the outer wall of the cleaning tank 10 restricts the slider 42 from rotating therewith, so that the slider 42 moves up and down as the screw 41 rotates. Since the two screws 41 rotate in opposite directions, when one slider 42 moves upward, the other slider 42 moves downward.

[0040] When the first comb tooth holder 21 or the second comb tooth holder 22 carries multiple circuit boards that have completed the cleaning work and moves upward to separate from the cleaning agent, the motor 50 blows the air outside the cleaning tank 10 onto the circuit boards to remove the water stains attached to the surfaces of the circuit boards, and the filter screen intercepts the pollutants in the air outside the cleaning tank 10.

[0041] The above are only the embodiments of the present invention. Specific technical solutions or common knowledge such as characteristics well known in the art are not described in detail herein. It should be noted that for those skilled in the art, without departing from the technical solution of the present invention, several deformations and improvements can still be made, and these should also be regarded as the protection scope of the present invention, which will not affect the implementation effect of the present invention and the practicability of the patent. The protection scope required by this application should be based on the content of its claims, and the specific implementation manners described in the specification can be used to interpret the content of the claims.

Claims

1. A circuit board ultrasonic cleaning device, characterized in that: include: A cleaning box, wherein the cleaning box has a cleaning tank with an open top, and a plurality of ultrasonic generators are fixedly arranged on the bottom wall of the cleaning tank; A support frame, the support frame is arranged in the cleaning tank, and the support frame includes a first comb frame and a second comb frame that are staggered and matched with each other, the tops of the multiple comb teeth of the first comb frame and the second comb frame are respectively provided with limiting grooves, and the tops of the first comb frame and the second comb frame are respectively connected to a lifting mechanism, and the two lifting mechanisms are respectively located at the front and rear sides of the cleaning box; The motor is fixedly arranged on the outer side wall of the cleaning box and is used to enable the two lifting mechanisms to respectively drive the first comb tooth frame and the second comb tooth frame to move up and down.

2. The circuit board ultrasonic cleaning device according to claim 1, characterized in that: The lifting mechanism includes a screw rod, a slider and a support plate. The screw rod is arranged on the outside of the cleaning box for vertical rotation. The slider is sleeved on the screw rod, and the outer wall of the slider is in sliding contact with the outer wall of the cleaning box. The support plate is door-shaped, and the bottom of one end of the support plate is fixedly connected to the top of the slider. The tops of the first comb tooth frame and the second comb tooth frame are respectively fixedly connected to the bottoms of the other ends of the support plates of the corresponding lifting mechanisms.

3. The circuit board ultrasonic cleaning device according to claim 2, characterized in that: The side wall fixing sleeve of the screw rod on the rear side is provided with a second pulley, and the bottom of the front side of the cleaning box is rotatably provided with a first pulley under the cleaning tank, a vertical rod is fixedly provided on the top of the first pulley along its axial direction, and a third gear is provided on the outer fixing sleeve of the vertical rod, and the side wall fixing sleeve of the screw rod on the front side is provided with a second gear meshing with the third gear, and the output shaft fixing sleeve of the motor is provided with a first gear meshing with the second gear, and a transmission belt is wound around the first pulley and the second pulley.

4. The circuit board ultrasonic cleaning device according to claim 1, characterized in that: A mounting groove is arranged on the top of the inner side wall of the cleaning tank in the transverse direction and penetrates to the outer side wall of the cleaning box, and a plurality of fans are linearly arranged in the mounting groove.

5. The circuit board ultrasonic cleaning device according to claim 4, characterized in that: A filter is fixedly arranged in the installation groove at the rear side of the fan.

6. The circuit board ultrasonic cleaning device according to any one of claims 1 to 5, characterized in that: The bottom of the inner wall of the cleaning tank is connected to a drain pipe, and a valve is arranged on the drain pipe.

7. The circuit board ultrasonic cleaning device according to any one of claims 1 to 5, characterized in that: Elastic rubber strips are fixedly arranged on the inner walls on the left and right sides of the limiting groove respectively along the length direction of the limiting groove, and there is a gap between the two elastic rubber strips.

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