Regeneration and tin recovery system for PCB (Printed Circuit Board) process etching tin stripping liquid

Abstract

The utility model discloses a PCB (printed circuit board) process etching tin stripping liquid regeneration and tin recovery system, which relates to the technical field of tin stripping liquid and comprises a bottom plate, the top of the bottom plate is fixedly connected with a plurality of columns, the tops of the columns are fixedly connected with a shell, the bottom of the shell is fixedly connected with a motor, the motor is fixedly connected with a rotating rod through an output shaft, and the rotating rod is fixedly connected with a rotating shaft. A frame body is fixedly connected to the top of the rotating rod, first filter screens are embedded in the two sides of the interior of the frame body, a rotating plate is fixedly connected to the exterior of the rotating rod, a scraping plate is embedded in one side of the rotating plate, a discharging pipe is embedded in one side of the bottom of the shell, and a valve is fixedly installed at the bottom of the discharging pipe; the rotating rod extends into the shell and is connected with the shell through a bearing, the bottom and one side of the scraping plate make contact with the interior of the shell, and the interior of the scraping plate is fixedly connected with an I-shaped plate. According to the tin stripping liquid recycling device, the problem that particulate matters and impurities in the tin stripping liquid are inconvenient to pretreat when the tin stripping liquid is recycled is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of tin stripping liquid, especially to a PCB process etching tin stripping liquid regeneration and tin recovery system. BACKGROUND

[0002] Etching tin stripping liquid, also known as tin stripping liquid, tin stripping agent, tin stripping agent, tin stripping agent, etc., is a professional tin stripping agent in chemical industry, mainly used for removing tin or lead-tin alloy layer on the surface of copper in the manufacturing process of printed circuit board (PCB) and electronic components (IC). Etching tin stripping liquid is widely used in the fields of circuit board manufacturing and electronic component manufacturing in the electronic industry. In particular, in the process of circuit board manufacturing, etching tin stripping liquid is used to remove the tin plating layer and protect the required circuit pattern.

[0003] The existing device is not convenient for pretreatment of solid impurities and particulate matter in the tin stripping liquid, which directly affects the recovery and regeneration efficiency of the tin stripping liquid. During use, the impurity of the tin stripping liquid may cause other problems, such as instability of the tin stripping liquid, and poor working effect. Therefore, further improvement is needed. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the problem of not being convenient for pretreatment of particulate matter and impurities in the tin stripping liquid during recovery in the prior art, and provides a PCB process etching tin stripping liquid regeneration and tin recovery system.

[0005] In order to solve the problems in the prior art, the utility model adopts the following technical scheme:

[0006] A PCB process etching tin stripping liquid regeneration and tin recovery system, comprising a bottom plate, a plurality of column bodies are fixedly connected to the top of the bottom plate, a plurality of shell bodies are fixedly connected to the top of the column bodies, a motor is fixedly connected to the bottom of the shell body, a rotating rod is fixedly connected to the motor through an output shaft, a frame body is fixedly connected to the top of the rotating rod, filter screens one are embedded on both sides of the frame body, a rotating plate is fixedly connected to the outside of the rotating rod, a scraper is embedded on one side of the rotating plate, a discharge pipe is embedded on one side of the bottom of the shell body, and a valve is fixedly installed at the bottom of the discharge pipe.

[0007] Preferably, the rotating rod extends into the shell body and is connected between the shell body through a bearing, and the bottom and one side of the scraper are in contact with the inside of the shell body.

[0008] Preferably, an I-shaped plate is fixedly connected to the inside of the scraper, and a connecting rod is fixedly connected to the top of the I-shaped plate.

[0009] Preferably, a guide rod is fixedly connected to the top of the connecting rod, a collecting frame is arranged in the inside of the frame body, and a filter screen two is embedded in the inside of the collecting frame.

[0010] Preferably, the collecting frame outer surface is in contact with the inside of the filter screen two, and the top of the filter screen two is fixedly connected with a lifting rod.

[0011] Preferably, the lifting rod is fixedly connected with a counterweight outside, and the bottom of the counterweight is fixedly connected with a fixed plate.

[0012] Preferably, the lifting rod is arranged in a zigzag shape, extends to one side outside the shell, and is circumferentially distributed between the guide rod and the fixed plate.

[0013] Compared with the prior art, the beneficial effects of the present application are:

[0014] In the present application, the synchronous rotation of the frame and the filter screen one can make the tin solution be centrifugally thrown out of the inside of the filter screen one and enter the inside of the shell for collection. In this process, the larger impurities and particles are blocked by the filter screen one to ensure the purity of the tin solution. When the tin solution needs to be discharged and regenerated, the valve is connected with the input pipe of the external electrolytic cell. At this time, the tin solution enters the inside of the electrolytic cell through the discharge pipe. Through the electrolysis process, the tin ions in the tin solution can be reduced to metallic tin, and the tin solution can be regenerated at the same time.

[0015] In the present application, the guide rod gradually contacts the fixed plate during rotation and drives the fixed plate to rise upward through the guide of the guide rod. The fixed plate drives the counterweight and the lifting rod to move upward during the rising process. The lifting rod drives the filter screen two and the collecting frame to move upward during the moving process, so that the particles and impurities adhered to the inside of the filter screen one can be scraped off, the blockage is prevented, and the efficiency of liquid discharge is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0016] The drawings described herein are used to provide further understanding of the present application, constitute a part of the present application, and the schematic embodiments of the present application and the description thereof are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0017] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0018] Figure 2 It is a schematic diagram of the overall structure of the present application;

[0019] Figure 3 It is a schematic diagram of part of the structure of the present application;

[0020] Figure 4 It is a schematic diagram of part of the structure of the present application; Figure 3

[0021] ​The figure serial number: 1, bottom plate; 2, column; 3, shell; 4, motor; 5, rotating rod; 6, frame; 7, filter screen one; 8, rotating plate; 9, scraper; 10, discharge pipe; 11, valve; 12, I-shaped plate; 13, connecting rod; 14, guide rod; 15, collection frame; 16, filter screen two; 17, lifting rod; 18, counterweight; 19, fixed plate. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0023] Embodiment 1: the embodiment provides a PCB process etching tin stripping solution regeneration and tin recovery system, referring to Figures 1-4 , specifically, including the bottom plate 1, the top of the bottom plate 1 is fixedly connected with a plurality of column 2, the top of the plurality of column 2 is fixedly connected with the shell 3, the bottom of the shell 3 is fixedly connected with the motor 4, the motor 4 is fixedly connected with the rotating rod 5 through the output shaft, the top of the rotating rod 5 is fixedly connected with the frame 6, the inside of the frame 6 is embedded with filter screen one 7 on both sides, the rotating plate 8 is fixedly connected outside the rotating rod 5, the scraper 9 is embedded on one side of the rotating plate 8, the discharge pipe 10 is embedded on one side of the bottom of the shell 3, the valve 11 is fixedly installed at the bottom of the discharge pipe 10.

[0024] In the embodiment, the rotating rod 5 extends to the inside of the shell 3 and is connected between the shell 3 through the bearing, the bottom and one side of the scraper 9 are in contact with the inside of the shell 3, which can facilitate the scraping work of the scraper 9 in the inside of the shell 3.

[0025] In the specific implementation process, as Figures 1-3 shown, when the work of recycling the tin stripping solution is needed, first, the staff needs to start the motor 4, the motor 4 will control the rotating rod 5 to rotate after starting, the rotating rod 5 will synchronously drive the frame 6 and filter screen one 7 to rotate in the process of rotating, then the tin stripping solution is poured into the inside of the frame 6 and filter screen one 7, at this time, the synchronous rotation of the frame 6 and filter screen one 7 will make the tin stripping solution be centrifuged out of the inside of the filter screen one 7 and enter the inside of the shell 3 for collection, in this process, the larger impurities and particulate matters will be blocked by the filter screen one 7 to ensure the purity of the tin stripping solution, when the process of discharging and regenerating the tin stripping solution is needed, the valve 11 is connected with the external electrolytic cell input pipe, then the staff opens the valve 11, at this time, the tin stripping solution will enter the inside of the electrolytic cell through the discharge pipe 10, through the electrolysis process, the tin ions in the tin stripping solution can be reduced to metallic tin, and at the same time, the tin stripping solution can be regenerated;

[0026] The rotating rod 5 also drives the rotating plate 8 and the scraper 9 to rotate during rotation. The scraper 9 will simultaneously scrape the tin removal liquid on the inner wall of the shell 3 during rotation. Since the scraper 9 will guide the rotation of the tin removal liquid during rotation, the tin removal liquid attached to the inner wall of the shell 3 will enter the inside of the discharge pipe 10 and circulate, thereby ensuring the efficiency of the tin removal liquid regeneration.

[0027] In this embodiment, the I-shaped plate 12 is fixedly connected inside the scraper 9, and the connecting rod 13 is fixedly connected to the top of the I-shaped plate 12. The I-shaped plate 12 can be used to fix and connect the connecting rod 13.

[0028] In this embodiment, the connecting rod 13 is fixedly connected to the top of the guide rod 14, the collecting frame 15 is arranged inside the frame 6, and the filter screen 2 is arranged inside the collecting frame 15. The filter screen 2 can facilitate the movement of the collecting frame 15 and collect particulate matter and impurities through the filter screen 2.

[0029] In this embodiment, the outer surface of the collecting frame 15 is in contact with the inside of the filter screen 1 7, and the lifting rod 17 is fixedly connected to the top of the filter screen 2 16. The lifting rod 17 can facilitate the movement of the filter screen 2 16.

[0030] In this embodiment, the lifting rod 17 is fixedly connected to the outside of the counterweight 18, and the fixed plate 19 is fixedly connected to the bottom of the counterweight 18. The counterweight 18 and the fixed plate 19 will not rotate at the same speed due to the weight of the counterweight 18 and the fixed plate 19.

[0031] In this embodiment, the lifting rod 17 is in a zigzag shape, the lifting rod 17 extends to one side outside the shell 3, and the guide rod 14 and the fixed plate 19 are distributed in a circular manner. The guide rod 14 can drive the fixed plate 19 to guide and rise.

[0032] In the specific implementation process, for example, Figures 3-4As shown, since the counterweight 18 and the fixed plate 19 have a certain weight, they are driven slowly in the process of the tin removal solution rotating, and the scraper 9 also drives the I-shaped plate 12, the connecting rod 13 and the guide rod 14 to rotate synchronously in the process of rotating, the guide rod 14 gradually contacts the fixed plate 19 in the process of rotating and drives the fixed plate 19 to rise up through the guidance of the guide rod 14, the fixed plate 19 drives the counterweight 18 and the lifting rod 17 to move upwards synchronously in the process of rising, the lifting rod 17 drives the filter screen two 16 and the collecting frame 15 to move upwards synchronously in the process of moving, so that the particles and impurities adhered in the filter screen one 7 can be scraped, and the clogging is prevented, when it is needed to discharge the particles and impurities, the worker lifts the lifting rod 17 upwards, the lifting rod 17 drives the counterweight 18 and the fixed plate 19 to move synchronously in the process of moving, meanwhile, the lifting rod 17 also drives the filter screen two 16 and the collecting frame 15 to leave the inside of the device, then the worker pours out the impurity particles collected on the top of the collecting frame 15.

[0033] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A PCB process etching stripping solution regeneration and tin recovery system comprising a base plate (1), characterized in that: The bottom plate (1) top fixedly connected with a plurality of column (2), a plurality of the column (2) top fixedly connected with the shell (3), the shell (3) bottom fixedly connected with motor (4), the motor (4) is fixedly connected with rotating rod (5) through output shaft, the rotating rod (5) top fixedly connected with frame (6), the frame (6) inside both sides are embedded with filter screen one (7), the rotating rod (5) outside fixedly connected with rotating plate (8), the rotating plate (8) one side embedded with scraper (9), the shell (3) bottom one side embedded with discharge pipe (10), the discharge pipe (10) bottom fixedly installed with valve (11).

2. The system for regeneration of etching solution for PCB process and tin recovery according to claim 1, wherein: The rotating rod (5) extends to the shell (3) inside and is connected between the shell (3) through bearing, the scraper (9) bottom and one side are in contact with the shell (3) inside.

3. The system for regeneration of etching solution and tin recovery according to claim 1, wherein: The scraper (9) inside fixedly connected with I-shaped plate (12), the I-shaped plate (12) top fixedly connected with connecting rod (13).

4. The system for regeneration of etching solution and tin recovery according to claim 3, wherein: The connecting rod (13) top fixedly connected with guide rod (14), the frame (6) inside is equipped with collecting frame (15), the collecting frame (15) inside embedded with filter screen two (16).

5. The system for regeneration of etching solution and tin recovery according to claim 4, wherein: The collecting frame (15) outer surface is in contact with the filter screen one (7) inside, the filter screen two (16) top fixedly connected with the pull rod (17).

6. The system for regeneration of etching solution for PCB process and tin recovery according to claim 5, wherein: The pull rod (17) outside fixedly connected with counterweight (18), the counterweight (18) bottom fixedly connected with fixed plate (19).

7. The system for regeneration of etching solution and tin recovery according to claim 6, wherein: The pull rod (17) shape is set to zigzag shape, the pull rod (17) extends to the shell (3) outside one side, the guide rod (14) and fixed plate (19) are circumferentially distributed between.

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