Waste tin precipitating and filtering device

By designing the stirring mechanism and cam system inside the box, the clogging problem of the waste tin precipitation and filtration device in circuit board production was solved, achieving efficient waste tin filtration and recycling.

CN223852376UActive Publication Date: 2026-01-30CHONGQING JIAXIN ELECTRONICS CO LTD
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Patent Information

Application Number
CN202520186972.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-06
Publication Date
2026-01-30
Estimated Expiration
2035-02-06

AI Technical Summary

Technical Problem

In the existing circuit board production process, the filtration device is prone to clogging when waste tin settles, resulting in poor filtration effect.

Method used

A waste tin precipitation and filtration device was designed, comprising a housing, a processing chamber, a partition, a filter frame, a filter plate, and a stirring mechanism. The device uses a motor to drive a cam to abut against the filter plate, causing the waste tin deposited on the filter plate to shake and prevent clogging. The device also incorporates multiple sets of rotating shafts for stirring to improve the precipitation effect.

Benefits of technology

It effectively prevents clogging caused by long-term sedimentation of waste tin, improves filtration efficiency and operational efficiency, and facilitates the continuous discharge and recycling of waste tin.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223852376U_ABST
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Abstract

The utility model relates to the technical field of circuit boards, in particular to a waste tin precipitating and filtering device which comprises a box body, a treatment cavity is arranged in the box body, a group of partition plates are fixedly arranged on the inner walls of the two sides of the treatment cavity of the box body respectively, a filtering frame is arranged below the baffle plates in the treatment cavity, and a filtering plate is arranged at the bottom of the filtering frame. A filter plate is arranged at the bottom of the filter frame, a cam is rotationally arranged on the side wall, below the filter plate, of the treatment cavity, the outer edge of the cam abuts against the filter plate, a first motor is fixedly arranged on the outer wall of the box body, and an output shaft of the first motor is fixedly connected with one end of the cam. And when the filter plate filters waste tin in liquid, the motor I drives the cam to abut against the filter plate, so that the filter plate drives the precipitated waste tin to shake, the situation that the waste tin precipitates on the filter plate for a long time to block the filter plate is avoided, and the filter effect is improved.
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Description

TECHNICAL FIELD

[0001] The application relates to the technical field of circuit boards, in particular to a waste tin precipitation filtering device. BACKGROUND

[0002] The circuit board is a kind of printed circuit board with highly integrated electronic components, and is widely used in electronic products such as mobile phones and notebook computers. In the production process of the circuit board, a layer of tin is generally plated on the surface of the circuit board as an etching layer. After etching, the tin of the etching layer is dissolved, and waste water is generated. Therefore, the tin in the waste water needs to be recycled and regenerated by a filtering and precipitating device to realize the recycling of the waste liquid of the circuit board, so as to reduce the production cost of the circuit board and increase the production benefit of the circuit board.

[0003] A PCB tin stripping liquid tin extraction device is disclosed in the utility model with the publication number CN218772579U, which comprises a device main body, a top cover bolted to the top of the device main body, a support frame welded to the top of the device main body, a driving motor welded to the top of the support frame, a gear two meshed and connected to the left side of the driving motor, and a gear three movably connected to the outer surface of the gear two. Through the cooperation of the device main body, the top cover, the support frame, the driving motor, the gear two, the gear three and the extraction liquid, the operator injects the tin stripping liquid and the precipitating agent into the device main body through the liquid inlet pipe and the medicine inlet pipe. The operator controls the driving motor to start through the control panel, and the driving motor drives the gear one to rotate clockwise. The fan blade one and the fan blade two stir the tin stripping liquid, so that the upper half and the lower half of the tin stripping liquid rotate in opposite directions, and the tin stripping liquid is further stirred, thereby achieving the effect of fully stirring the tin stripping liquid and further improving the tin extraction efficiency.

[0004] The device is provided with a device main body, and the surface of the device main body is welded with a liquid inlet pipe, a medicine inlet pipe and a sewage discharge pipe. A filter screen is arranged at the top of the sewage discharge pipe. When the waste tin extraction operation is performed, the operator injects the tin stripping liquid and the precipitating agent into the device main body, and then stirs them through the shaft one and the shaft two, and finally discharges them through the sewage discharge pipe. However, the precipitated tin will gradually accumulate on the filter screen during the discharging process. After a long time of discharging, the accumulated tin will affect the discharge of the waste liquid and finally cause blockage, and the filtering effect is poor. UTILITY MODEL CONTENTS

[0005] In view of the poor filtering effect in the prior art, the utility model provides a waste tin precipitation filtering device.

[0006] Therefore, the utility model adopts the following specific technical solutions:

[0007] The utility model provides a kind of waste tin precipitation filtering device, including box, processing cavity is equipped in box, box top is equipped with the liquid inlet of intercommunication processing cavity, box is respectively fixedly arranged with a group of baffle in the two sides inner wall of processing cavity, the through hole one of intercommunication processing cavity is equipped in box front side, baffle is slidably arranged in the through hole one, baffle is respectively with a group of baffle abutment in the two sides in processing cavity, the filter frame is arranged in the processing cavity below baffle, the bottom of filter frame is provided with filter plate, fixed block is fixedly arranged on the side wall of filter plate, sliding slot is equipped on filter frame and is matched with fixed block, the side wall of processing cavity below filter plate is rotatably provided with cam, the outer edge of cam and filter plate abut, motor one is fixedly arranged on the outer wall of box, the output shaft of motor one is connected with the one end of cam fixedly;

[0008] It also includes a stirring mechanism, which is arranged in the box.

[0009] Preferably, the stirring mechanism includes motor two, shaft and blade, the shaft is located in the processing cavity and is rotatably connected with the box, the shaft is above the baffle, a plurality of groups of blades are arranged on the shaft at intervals, motor two is fixedly arranged on the box, the output shaft of motor two is connected with one end of the shaft fixedly, the staff starts motor two, so that motor two drives the shaft to rotate, and then the blades on the shaft stir the liquid in the processing cavity, which is convenient to operate and improves the work efficiency.

[0010] Preferably, the shaft is arranged in multiple groups and is arranged in the processing cavity at intervals, so that the liquid is stirred at multiple points, the stirring efficiency is improved, and the rotating directions of the motors two of the multiple groups of shafts are opposite, which improves the precipitation effect of waste tin.

[0011] Preferably, the top of the fixed block is fixedly provided with a fixed rod, the top of the sliding slot is provided with a counterbore matched with the fixed rod, a section of the fixed rod in the sliding slot is sleeved with a spring, and the two ends of the spring are respectively abutted with the fixed block and the filter frame. By arranging the fixed rod and the spring on the fixed block, when the large-diameter end of the cam lifts the filter plate, the fixed block will compress the spring, and then when the large-diameter end of the cam is separated from the abutment with the filter plate, the filter plate will return to its original position under the action of the spring, which is convenient to operate.

[0012] Preferably, the outer wall of the box is provided with a through hole two communicating with the processing cavity, a clamping groove communicating with the through hole two is arranged on the baffle, the filter frame is slidably arranged in the through hole two, and a guide rail matched with the clamping groove is fixedly arranged on the side wall of the filter frame. The staff can take and place the filter frame along the through hole two, which is convenient for the staff to collect and process the waste tin on the filter plate.

[0013] Preferably, a section of the baffle above the baffle is inclined, which ensures that the liquid above the baffle can flow down fully.

[0014] Preferably, the bottom of the processing cavity is fixedly provided with a fixed plate, the two sides of the fixed plate are inclined, and the outer wall of the box body is fixedly provided with a drain pipe communicating with the processing cavity at the lowest part of the fixed plate.

[0015] The above technical scheme has the advantages that:

[0016] The utility model discloses a box body is provided with, be equipped with processing cavity in the box body, and the box body is fixedly provided with a group of baffle in the two side inner walls of processing cavity respectively, and the filter frame is provided below the baffle in processing cavity, and the filter frame bottom is provided with filter plate, and the lateral wall of processing cavity is rotatably provided with cam below filter plate, and the outer edge of cam is in abutment with filter plate, and the outer wall of box body is fixedly provided with motor no. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiment of the present application, the drawings needed to be used in the embodiment description will be briefly introduced, and obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0018] Figure 1 The structure schematic diagram of the utility model is shown;

[0019] Figure 2 The local sectional view of the utility model is shown;

[0020] Figure 3 The local sectional view of the utility model is shown;

[0021] Figure 4 The local enlarged view of the utility model A is shown;

[0022] Figure 5 The local structure schematic diagram of the utility model is shown;

[0023] Among them: box body 1, processing cavity 101, liquid inlet 102, drain pipe 103, baffle 2, baffle 3, filter frame 4, filter plate 401, fixed block 402, sliding slot 403, guide rail 404, motor 5, motor 6, rotating shaft 601, fixed rod 7, spring 701, fixed plate 8. DETAILED DESCRIPTION

[0024] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0025] like Figures 1-5 As shown in the figure, this utility model discloses a waste tin precipitation and filtration device, including a box body 1 and a stirring mechanism. The box body 1 is provided with a processing chamber 101. The top of the box body 1 is provided with a liquid inlet 102 communicating with the processing chamber 101. A set of partitions 2 are fixedly installed on the inner walls of both sides of the box body 1 and the front side of the box body 1 is provided with a through hole communicating with the processing chamber 101. A baffle 3 is slidably installed in the through hole. The baffle 3 abuts against the set of partitions 2 on both sides of the processing chamber 101. A filter frame 4 is provided below the baffle 3 inside the 01. A filter plate 401 is provided at the bottom of the filter frame 4. A fixing block 402 is fixedly provided on the side wall of the filter plate 401. A sliding groove 403 is provided on the filter frame 4 to match the fixing block 402. A cam is rotatably provided on the side wall below the filter plate 401 in the processing chamber 101. The outer edge of the cam abuts against the filter plate 401. A motor 5 is fixedly provided on the outer wall of the box 1. The output shaft of the motor 5 is connected and fixed to one end of the cam. The stirring mechanism is provided inside the box 1.

[0026] In at least one embodiment, the stirring mechanism includes a second motor 6, a rotating shaft 601, and blades. The rotating shaft 601 is located inside the processing chamber 101 and is rotatably connected to the housing 1. The rotating shaft 601 is located above the partition 2. Multiple sets of blades are spaced apart on the rotating shaft 601. The second motor 6 is fixedly mounted on the housing 1. The output shaft of the second motor 6 is connected and fixed to one end of the rotating shaft 601. When the operator starts the second motor 6, the second motor 6 drives the rotating shaft 601 to rotate, thereby causing the blades on the rotating shaft 601 to stir the liquid in the processing chamber 101. The operation is convenient and improves work efficiency.

[0027] In at least one embodiment, multiple sets of rotating shafts 601 are arranged at intervals within the processing chamber 101. By setting multiple sets of rotating shafts 601, the liquid can be stirred at multiple points, thereby improving the stirring efficiency. Furthermore, the motors 6 of the multiple sets of rotating shafts 601 rotate in opposite directions, thereby improving the precipitation effect of waste tin.

[0028] In at least one embodiment, the top of the fixed block 402 is fixedly provided with a fixed rod 7, the top of the sliding groove 403 is provided with a counterbore matched with the fixed rod 7, a section of the fixed rod 7 in the sliding groove 403 is sleeved with a spring 701, and the two ends of the spring 701 are respectively abutted with the fixed block 402 and the filter frame 4. By arranging the fixed rod 7 and the spring 701 on the fixed block 402, when the large-diameter end of the cam lifts the filter plate 401, the fixed block 402 can compress the spring 701, and then when the large-diameter end of the cam is separated from the abutment with the filter plate 401, the filter plate 401 returns to the original position under the action of the spring 701, which is convenient to operate.

[0029] In at least one embodiment, the outer wall of the box body 1 is provided with a through hole two communicating with the treatment cavity 101, the partition plate 2 is provided with a clamping groove communicating with the through hole two, the filter frame 4 is slidingly arranged in the through hole two, and the side wall of the filter frame 4 is fixedly provided with a guide rail 404 matched with the clamping groove. The worker can take and place the filter frame 4 along the through hole two, which is convenient for the worker to collect and process the waste tin on the filter plate 401, and the operation is convenient.

[0030] In at least one embodiment, a section of the partition plate 2 above the baffle 3 is inclined, which ensures that the liquid above the partition plate 2 can flow down fully.

[0031] In at least one embodiment, the bottom of the treatment cavity 101 is fixedly provided with a fixed plate 8, the two sides of the fixed plate 8 are inclined, and the outer wall of the box body 1 is fixedly provided with a drain pipe 103 communicating with the treatment cavity 101 at the lowest part of the fixed plate 8. By arranging the drain pipe 103 and the fixed plate 8, it is convenient to fully discharge the liquid flowing down through the filter plate 401.

[0032] When the waste tin recycling operation is performed, the worker pours the tin stripping liquid and the precipitant into the treatment cavity 101 through the liquid inlet 102 on the box body 1, the mixed liquid in the treatment cavity 101 is stored above the partition plate 2 and the baffle 3, and then the worker stirs the mixed liquid in the treatment cavity 101 through the stirring mechanism, so that the tin stripping liquid and the precipitant fully react. When the tin in the mixed liquid is fully precipitated, the worker slides the baffle 3 along the through hole one, so that the mixed liquid flows downward from the baffle 3 to the filter frame 4, the waste tin precipitated is filtered through the filter plate 401 at the bottom of the filter frame 4, and the filtered liquid flows into the bottom of the treatment cavity 101. When filtering, the worker starts the motor one 5, so that the motor one 5 drives the cam (not shown in the figure) to rotate. When the cam rotates, the abutment between the outer edge and the filter plate 401 drives the filter plate 401 to move up and down along the sliding groove 403 on the filter frame 4, so as to shake the waste tin precipitated on the filter plate 401, avoid the waste tin from being adsorbed on the filter plate 401 for a long time to cause the blockage of the filter plate 401, ensure the continuous discharge of the waste liquid, and improve the filtering effect.

[0033] Finally, it should be noted that the above examples are only used to illustrate the technical solutions of the present application, and are not intended to limit the same; although the present application has been described in detail with reference to the foregoing examples, those of ordinary skill in the art will understand that they can still modify the technical solutions described in the foregoing examples, or make equivalent replacements for some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A spent tin precipitation filtration apparatus, characterized by: Comprising The box is provided with a processing cavity, a liquid inlet communicating with the processing cavity is arranged on the top of the box, a group of partitions are respectively arranged on the inner walls of the two sides of the processing cavity, a through hole one communicating with the processing cavity is arranged on the front side of the box, a baffle is slidably arranged in the through hole one, the baffle is in abutment with a group of partitions on the two sides in the processing cavity, a filter frame is arranged below the baffle in the processing cavity, a filter plate is arranged on the bottom of the filter frame, a fixed block is fixedly arranged on the sidewall of the filter plate, a sliding groove matched with the fixed block is arranged on the filter frame, a cam is rotatably arranged on the sidewall of the processing cavity below the filter plate, the outer edge of the cam is in abutment with the filter plate, a motor one is fixedly arranged on the outer wall of the box, and the output shaft of the motor one is fixedly connected with one end of the cam. Further comprising a stirring mechanism, the stirring mechanism is arranged in the box.

2. A tin waste settling and filtering device according to claim 1, characterized in that: The stirring mechanism comprises a motor two, a rotating shaft and a blade, the rotating shaft is located in the processing cavity and is rotatably connected with the box, the rotating shaft is located above the partition, a plurality of groups of blades are arranged on the rotating shaft at intervals, the motor two is fixedly arranged on the box, and the output shaft of the motor two is fixedly connected with one end of the rotating shaft.

3. A tin waste settling and filtering device according to claim 2, wherein: The rotating shaft is arranged in multiple groups and is arranged in the processing cavity at intervals.

4. The spent tin precipitation filtration apparatus of claim 1, wherein: A fixed rod is fixedly arranged on the top of the fixed block, a counterbore matched with the fixed rod is arranged on the top of the sliding groove, a spring is sleeved on a section of the fixed rod in the sliding groove, and the two ends of the spring are in abutment with the fixed block and the filter frame respectively.

5. The spent tin precipitation filtration apparatus of claim 1, wherein: The outer wall of the box is provided with a through hole two communicating with the processing cavity, a clamping groove communicating with the through hole two is arranged on the partition, the filter frame is slidably arranged in the through hole two, and a guide rail matched with the clamping groove is fixedly arranged on the sidewall of the filter frame.

6. A tin waste settling and filtering device as claimed in claim 1, characterized in that: A section of the partition above the baffle is inclined.

7. A tin waste settling and filtering device as claimed in claim 1, characterized in that: A fixed plate is fixedly arranged on the bottom of the processing cavity, the two sides of the fixed plate are inclined, and a drain pipe communicating with the processing cavity is fixedly arranged on the outer wall of the box at the lowest part of the fixed plate.