Horizontal high-pressure swing spraying device for waste circuit board and spraying treatment system

Abstract

The utility model relates to the field of waste circuit board recovery, in particular to a horizontal high-pressure swing spraying device and spraying treatment system for waste circuit boards, which comprises a spray head for spraying tin stripping liquid and a liquid storage tank for storing the tin stripping liquid. The nozzle is provided with a rotating shaft serving as a horizontal rotating center, a first motor for supplying force to rotation of the nozzle, a brake frame for fixing the rotating angle of the nozzle and a high-pressure pump for pressurizing and feeding tin stripping liquid into the nozzle, the nozzle is located at the bottom of the liquid storage tank, and the rotating shaft is rotationally connected with the bottom of the nozzle and arranged at the bottom of the liquid storage tank; the first motor is installed at the bottom of the liquid storage tank and connected with one end of the rotating shaft, and the brake frame is installed at the bottom of the liquid storage tank and connected with the other end of the rotating shaft. The spraying blind area is manually eliminated at a fixed point by fixing the spraying head through the brake frame, the swing spraying amplitude is changed by controlling intermittent output of the first motor, waste is avoided, tin stripping liquid is rapidly added through the crane and the pull rope, and efficiency is further improved.

Description

Technical Field

[0001] The utility model relates to the field of waste circuit board recycling, in particular to a horizontal high-pressure swing spraying device and a spraying treatment system for waste circuit boards. Background Art

[0002] Waste circuit boards are a type of scrapped product. However, due to the large amount of tin plating and tin-lead alloy plating they contain, they have relatively high recycling value. In general factories, spray stripping solution is used to remove the tin elements on waste circuit boards, and the used stripping solution is recycled to extract tin again. However, for a large number of waste circuit boards in factories, manual spraying is very time-consuming and inefficient. Therefore, an automatic spraying device for stripping solution is needed to improve efficiency.

[0003] Chinese Patent CN219150911U discloses a swing spraying device for semiconductor package cleaning equipment, including a main housing. A water storage tank is fixedly installed at the top of the main housing, and a liquid level observation window is arranged on the surface of the water storage tank. A first motor component is fixedly installed at the upper end of the surface of the main housing. The output shaft of the first motor component penetrates into the interior of the main housing, and the output shaft of the first motor component is fixedly connected with a movable transmission rod. One end of the movable transmission rod is movably connected with a sprinkling rod. By setting a conveyor belt with a fixed limit mechanism and a plurality of fixed support columns on this device, the device can not only facilitate the fixed limit of semiconductors during actual use, but also realize the continuous cleaning of semiconductors. By setting a transmission structure on this device, when spraying, the sprinkling rod swings, so that the nozzle assembly can spray and clean the semiconductor from multiple angles and directions, making the cleaning effect better.

[0004] The above scheme still has several improvement points: only swing spraying can be carried out, which will produce spraying blind areas; the addition of stripping solution is very troublesome. Summary of the Utility Model

[0005] To solve the problems of the prior art, the utility model provides a horizontal high-pressure swing spraying device for waste circuit boards, including a nozzle for spraying stripping solution and a liquid storage tank for storing stripping solution. A rotating shaft serving as a horizontal rotation center, a first motor for providing power for the rotation of the nozzle, a brake frame for fixing the rotation angle of the nozzle, and a high-pressure pump for pressurizing and feeding the stripping solution into the nozzle are arranged on the nozzle. The nozzle is located at the bottom of the liquid storage tank. The rotating shaft is rotatably connected to the bottom of the nozzle and arranged at the bottom of the liquid storage tank. The first motor is installed at the bottom of the liquid storage tank and connected to one end of the rotating shaft. The brake frame is installed at the bottom of the liquid storage tank and connected to the other end of the rotating shaft. The high-pressure pump is installed at the bottom of the liquid storage tank and connected to the nozzle.

[0006] Preferably, a positioning platform is installed at the center of the bottom of the liquid storage tank. The rotating shaft passes through the positioning platform and is connected with a rotating table. The rotating table is fixedly connected with a pipe orifice. The nozzle is arranged in the pipe orifice. One end of the connecting line is connected to the high-pressure pump, and the other end is connected to the pipe orifice.

[0007] Preferably, the first motor is connected to a power shaft, a first gear set, and a first bracket. The first bracket is installed at the bottom of the liquid storage tank. The power shaft is rotatably installed on the first bracket. One end of the power shaft is connected to the first motor, and the other end is connected to the first gear set.

[0008] Preferably, a second bracket, a spring, a telescopic rod, and a spur gear are provided on the brake frame. The second bracket is installed at the bottom of the liquid storage tank. One end of the telescopic rod is connected to the second bracket, and the other end is connected to the brake frame. The spring surrounds the outside of the telescopic rod. The spur gear is installed at one end of the rotating shaft close to the brake frame.

[0009] Preferably, a rotating cylinder, a protective shell, a second gear set, and a second motor are provided on the liquid storage tank. The rotating cylinder is arranged inside the liquid storage tank. The protective shell is arranged on the liquid storage tank. The second gear set is arranged in the protective shell and at the bottom of the liquid storage tank. The second motor is installed in the protective shell and on the side of the liquid storage tank.

[0010] Preferably, through holes, fan blades, and a turntable are provided on the rotating cylinder. The through holes and the fan blades are arranged in an array on the arc surface of the rotating cylinder. The turntable is installed at the bottom of the rotating cylinder and connected to the second gear set.

[0011] A spray treatment system includes a crane, a guide rail, a pulling rope, and a horizontal high-pressure swing spray device for waste circuit boards described above. The crane is slidably arranged on the guide rail. One end of the pulling rope is connected to the crane, and the other end is connected to the top of the liquid storage tank.

[0012] Preferably, a wire reel, rollers, and a controller are installed on the crane. The wire reel is installed at the bottom of the crane and connected to the pulling rope. The rollers are arranged at the top of the crane and are in rolling connection with the guide rail. The controller is installed on the side of the crane.

[0013] The beneficial effects of the present utility model compared with the prior art are as follows:

[0014] 1. The present utility model fixes the nozzle through the brake frame to manually eliminate the spraying blind area. Specifically, in order to prevent blind areas from being generated on the waste circuit board during the swing spraying of the stripping solution, the brake frame is used to fix the nozzle at the required angle for single-point spraying at the place not covered by the stripping solution.

[0015] 2. The present utility model changes the swing spraying amplitude by controlling the intermittent output of the first motor to avoid waste. Specifically, the first motor transmits power to the first gear set through the power shaft, and makes the rotating shaft drive the nozzle to perform a horizontal swing movement by rotating the power shaft forward and backward. The swing amplitude of the nozzle is determined by manually setting the intermittent power supply time of the first motor, avoiding waste of the stripping solution caused by too large a swing amplitude.

[0016] 3. The utility model uses a crane and a pulling rope to quickly add the tin stripping solution, further improving the efficiency. Specifically, the controller can rotate the bobbin to lower the pulling rope, so as to quickly lower the liquid storage tank and timely add water and nitric acid into it, and select a suitable tin stripping solution by changing the mixing ratio of the two. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three-dimensional view of a horizontal high-pressure swing spraying device and a spraying treatment system for waste circuit boards.

[0018] Figure 2 is a three-dimensional view of a horizontal high-pressure swing spraying device for waste circuit boards.

[0019] Figure 3 is a three-dimensional view of a positioning table in a horizontal high-pressure swing spraying device for waste circuit boards.

[0020] Figure 4 is a three-dimensional view of a brake frame in a horizontal high-pressure swing spraying device for waste circuit boards.

[0021] Figure 5 is a three-dimensional view of a liquid storage tank in a horizontal high-pressure swing spraying device for waste circuit boards.

[0022] Figure 6 is a three-dimensional view of a crane in a spraying treatment system.

[0023] The reference numerals in the figures are: 1, spray head; 2, rotating shaft; 21, positioning table; 22, turntable; 23, pipe orifice; 24, connecting wire; 3, first motor; 31, power shaft; 32, first gear set; 33, first support; 4, brake frame; 41, second support; 42, spring; 43, telescopic rod; 44, spur gear; 5, high-pressure pump; 6, liquid storage tank; 61, rotating cylinder; 611, through hole; 612, fan blade; 613, turntable; 62, protective shell; 63, second gear set; 64, second motor; 7, crane; 71, bobbin; 72, roller; 73, controller; 8, guide rail; 9, pulling rope. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] To further understand the features, technical means, specific purposes and functions achieved by the present utility model, the present utility model will be further described in detail below in conjunction with the drawings and specific embodiments.

[0025] See Figures 1 to 6As shown in the figure, a horizontal high-pressure swinging spray device for waste circuit boards includes a spray head 1 for spraying tin removal liquid and a liquid storage tank 6 for storing tin removal liquid. A rotating shaft 2 serving as the horizontal rotation center, a first motor 3 for providing power for the rotation of the spray head 1, a brake frame 4 for fixing the rotation angle of the spray head 1, and a high-pressure pump 5 for pressurizing and feeding the tin removal liquid into the spray head 1 are provided on the spray head 1. The spray head 1 is located at the bottom of the liquid storage tank 6. The rotating shaft 2 is rotatably connected to the bottom of the spray head 1 and is arranged at the bottom of the liquid storage tank 6. The first motor 3 is installed at the bottom of the liquid storage tank 6 and is connected to one end of the rotating shaft 2. The brake frame 4 is installed at the bottom of the liquid storage tank 6 and is connected to the other end of the rotating shaft 2. The high-pressure pump 5 is installed at the bottom of the liquid storage tank 6 and is connected to the spray head 1.

[0026] First, place the waste circuit board below the spray head 1. The high-pressure pump 5 pressurizes and feeds the tin removal liquid from the liquid storage tank 6 into the spray head 1, and the first motor 3 reciprocally drives the rotating shaft 2 to drive the spray head 1 to swing horizontally and rotate to spray the tin removal liquid at high speed, ensuring that the tin removal liquid can cover a large area of the waste circuit board. In order to prevent blind spots from being generated on the waste circuit board during the swinging spraying of the tin removal liquid, the brake frame 4 is used to fix the spray head 1 at the required angle for single-point spraying at the places not covered by the tin removal liquid.

[0027] See Figure 1 and Figure 2 As shown in the figure, a positioning table 21 is installed at the center of the bottom of the liquid storage tank 6. The rotating shaft 2 passes through the positioning table 21 and is connected to a rotating table 22. The rotating table 22 is fixedly connected to a pipe orifice 23. The spray head 1 is arranged in the pipe orifice 23. One end of a connecting wire 24 is connected to the high-pressure pump 5, and the other end is connected to the pipe orifice 23.

[0028] The rotating shaft 2 serves as the rotation center of the rotating table 22. Driven by the first motor 3, the rotating table 22 fixed to the rotating shaft 2 rotates reciprocally together with the first motor 3. The connecting wire 24 has a certain anti-bending and wear-resistant ability to ensure that the tin removal liquid can be conveyed to the pipe orifice 23 that swings for a long time.

[0029] See Figures 1 to 3 As shown in the figure, the first motor 3 is connected to a power shaft 31, a first gear set 32, and a first support 33. The first support 33 is installed at the bottom of the liquid storage tank 6. The power shaft 31 is rotatably installed on the first support 33. One end of the power shaft 31 is connected to the first motor 3, and the other end is connected to the first gear set 32.

[0030] The first support 33 is used to install the power shaft 31 and the first gear set 32. The first motor 3 transmits power to the first gear set 32 through the power shaft 31, and makes the rotating shaft 2 drive the spray head 1 to perform horizontal swinging motion by rotating the power shaft 31 forward and backward. The swinging amplitude of the spray head 1 is determined by manually setting the intermittent power supply time of the first motor 3 to avoid waste of the tin removal liquid caused by too large a swinging amplitude.

[0031] See Figures 2 to 4As shown in the figure, a second bracket 41, a spring 42, a telescopic rod 43 and a spur gear 44 are provided on the brake frame 4. The second bracket 41 is installed at the bottom of the liquid storage tank 6. One end of the telescopic rod 43 is connected to the second bracket 41, and the other end is connected to the brake frame 4. The spring 42 surrounds the outside of the telescopic rod 43. The spur gear 44 is installed at one end of the rotating shaft 2 close to the brake frame 4.

[0032] The second bracket 41 is used to install the telescopic rod 43 and the brake frame 4. The brake frame 4 is close to the spur gear 44. By changing the extension and retraction of the telescopic rod 43, the distance between the brake frame 4 and the spur gear 44 is changed. The spring 42 provides buffering for the movement of the telescopic rod 43 to avoid damage to parts caused by the rapid stop of the rotation of the rotating shaft 2.

[0033] See Figure 5 As shown in the figure, a rotating cylinder 61, a protective shell 62, a second gear set 63 and a second motor 64 are provided on the liquid storage tank 6. The rotating cylinder 61 is arranged inside the liquid storage tank 6. The protective shell 62 is arranged on the liquid storage tank 6. The second gear set 63 is arranged in the protective shell 62 and at the bottom of the liquid storage tank 6. The second motor 64 is installed in the protective shell 62 and on the side of the liquid storage tank 6.

[0034] The protective shell 62 is used to install the second motor 64 and the second gear set 63. The second motor 64 drives the rotation of the rotating cylinder 61 through the second gear set 63. The second gear set 63 is used to transmit power to the rotating cylinder 61 while minimizing the floor space. Since most of the tin stripping liquid is made up of nitric acid and water, the rotation of the rotating cylinder 61 stirs the nitric acid and water in the liquid storage tank 6 evenly to improve the spraying effect of the tin stripping liquid.

[0035] See Figure 5 As shown in the figure, through holes 611, fan blades 612 and a turntable 613 are provided on the rotating cylinder 61. The through holes 611 and the fan blades 612 are arranged in an array on the arc surface of the rotating cylinder 61. The turntable 613 is installed at the bottom of the rotating cylinder 61 and connected to the second gear set 63.

[0036] The through holes 611 are used to communicate the inside of the rotating cylinder 61 and the inside of the liquid storage tank 6. The fan blades 612 are used to improve the stirring effect. The turntable 613 is driven by the second gear set 63 to drive the rotation of the rotating cylinder 61.

[0037] See Figures 1 to 6 As shown in the figure, a spray treatment system includes a crane 7, a guide rail 8, a pulling rope 9 and a horizontal high-pressure swing spray device for waste circuit boards described above. The crane 7 is slidably arranged on the guide rail 8. One end of the pulling rope 9 is connected to the crane 7, and the other end is connected to the top of the liquid storage tank 6.

[0038] The guide rail 8 is arranged above the waste circuit board. The crane 7 can move on the guide rail 8 with the nozzle 1 to ensure that the nozzle 1 can spray the tin stripping liquid onto every waste circuit board below the guide rail 8.

[0039] See Figure 6 As shown, a wire reel 71, a roller 72 and a controller 73 are installed on the crane 7. The wire reel 71 is installed at the bottom of the crane 7 and connected to the pulling rope 9. The roller 72 is arranged at the top of the crane 7 and is in rolling connection with the guide rail 8. The controller 73 is installed on the side of the crane 7.

[0040] The wire reel 71 can be rotated through the controller 73 to lower the pulling rope 9, so as to quickly lower the liquid storage tank 6 and timely add water and nitric acid into it, and select a suitable tin stripping solution by changing the mixing ratio of the two. At the same time, the controller 73 also controls the rotation of the roller 72, so that the staff can remotely control the crane 7 on the guide rail 8 on the ground.

[0041] The above embodiments only represent one or several implementation manners of the present utility model, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several deformations and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the appended claims.

Claims

1. A horizontal high-pressure swing spraying device for waste circuit boards, comprising a spray head (1) for spraying a tin stripping liquid and a liquid storage tank (6) for storing the tin stripping liquid; It is characterized in that The nozzle (1) is provided with a rotating shaft (2) serving as a horizontal rotation center, a first motor (3) for supplying force for the rotation of the nozzle (1), a brake frame (4) for fixing the rotation angle of the nozzle (1), and a high-pressure pump (5) for pressurizing the tin stripping liquid and sending it into the nozzle (1); the nozzle (1) is located at the bottom of a liquid storage tank (6); the rotating shaft (2) is rotatably connected to the bottom of the nozzle (1) and is arranged at the bottom of the liquid storage tank (6); the first motor (3) is installed at the bottom of the liquid storage tank (6) and connected to one end of the rotating shaft (2); the brake frame (4) is installed at the bottom of the liquid storage tank (6) and connected to the other end of the rotating shaft (2); and the high-pressure pump (5) is installed at the bottom of the liquid storage tank (6) and connected to the nozzle (1).

2. A horizontal high-pressure swing spraying device for waste circuit boards according to claim 1, characterized in that: A positioning platform (21) is installed at the bottom center of the liquid storage tank (6), the rotating shaft (2) passes through the positioning platform (21) and is connected to a rotating platform (22), the rotating platform (22) is fixedly connected to a pipe mouth (23), the nozzle (1) is arranged in the pipe mouth (23), one end of the connecting line (24) is connected to the high-pressure pump (5), and the other end is connected to the pipe mouth (23).

3. The horizontal high-pressure swing spraying device for waste circuit boards according to claim 1 is characterized in that: The first motor (3) is connected to a power shaft (31), a first gear set (32) and a first bracket (33); the first bracket (33) is mounted at the bottom of the liquid storage tank (6); the power shaft (31) is rotatably mounted on the first bracket (33); one end of the power shaft (31) is connected to the first motor (3), and the other end is connected to the first gear set (32).

4. The horizontal high-pressure swing spraying device for waste circuit boards according to claim 1 is characterized in that: The brake frame (4) is provided with a second bracket (41), a spring (42), a telescopic rod (43) and a spur gear (44); the second bracket (41) is installed at the bottom of the liquid storage tank (6); one end of the telescopic rod (43) is connected to the second bracket (41), and the other end is connected to the brake frame (4); the spring (42) is surrounded by the outer side of the telescopic rod (43); and the spur gear (44) is installed on the rotating shaft (2) at one end close to the brake frame (4).

5. The horizontal high-pressure swing spraying device for waste circuit boards according to claim 1 is characterized in that: The liquid storage tank (6) is provided with a rotating drum (61), a protective shell (62), a second gear set (63) and a second motor (64); the rotating drum (61) is arranged inside the liquid storage tank (6); the protective shell (62) is arranged on the liquid storage tank (6); the second gear set (63) is arranged in the protective shell (62) and is located at the bottom of the liquid storage tank (6); and the second motor (64) is installed in the protective shell (62) and is located at the side of the liquid storage tank (6).

6. A horizontal high-pressure swing spraying device for waste circuit boards according to claim 5, characterized in that: The rotating drum (61) is provided with through holes (611), fan blades (612) and a rotating disk (613); the through holes (611) and the fan blades (612) are arranged in an array on the arc surface of the rotating drum (61); the rotating disk (613) is installed at the bottom of the rotating drum (61) and is connected to the second gear set (63).

7. A spray treatment system, characterized in that: The invention comprises a crane (7), a guide rail (8), a pull rope (9) and a horizontal high-pressure swing spraying device for waste circuit boards as described in any one of claims 1 to 6, wherein the crane (7) is slidably arranged on the guide rail (8), one end of the pull rope (9) is connected to the crane (7), and the other end is connected to the top of the liquid storage tank (6).

8. A spray treatment system according to claim 7, characterized in that: A bobbin (71), a roller (72) and a controller (73) are installed on the crane (7); the bobbin (71) is installed at the bottom of the crane (7) and connected to a pull rope (9); the roller (72) is arranged on the top of the crane (7) and is rollingly connected to a guide rail (8); and the controller (73) is installed on the side of the crane (7).

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