Filtering device for recycling circuit board etching waste liquid

Abstract

The utility model discloses a filtering device for circuit board etching waste liquid recovery, which comprises a liquid storage tank, the top of the liquid storage tank is provided with a liquid removal assembly, the liquid removal assembly comprises a mounting ring rotationally connected with the top of the circumferential inner wall of the liquid storage tank, and the outer wall of the top of the mounting ring is coaxially fixed with a gear ring. A protruding plate is fixedly connected to the top of the circumferential outer wall of the liquid storage tank, a vertically-arranged first motor is fixedly installed on the outer wall of the top of the protruding plate, a gear is coaxially fixed to the outer wall of the top of the output end of the first motor and meshed with the gear ring, and a plurality of limiting clamps are arranged on the outer wall of the bottom of the installation ring and are oppositely arranged. According to the utility model, through the arrangement of the liquid removal assembly, the mounting ring on which the filter frame is placed can be driven to rotate in the liquid storage tank, so that etching liquid attached to crystals can be quickly separated, and the production efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of waste liquid recovery, in particular to a filtering device for recovering waste liquid from etching of a circuit board. Background Art

[0002] With the rapid development of the electronics industry, the output of printed circuit boards has also increased year by year. In the etching process of manufacturing printed circuit boards, a large amount of alkaline etching solution or acidic etching solution is required. These etching solutions form etching waste liquid after use. The etching waste liquid contains a large amount of copper ions and can be reused. The circuit board etching waste liquid needs to be recycled using a recycling and treatment device.

[0003] After the etching waste liquid is treated, copper-containing crystals will precipitate out of it, so it is necessary to use a filtering device to separate and collect these crystals.

[0004] When the copper-containing crystals are filtered out, there will still be a lot of etching liquid attached to them. It takes a long time to remove the crystals, which affects the processing efficiency and there is room for improvement. Utility Model Content

[0005] The utility model aims to provide a filtering device for recycling waste liquid from etching of circuit boards, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a filtering device for recycling waste liquid from etching of a circuit board, comprising a liquid storage tank, characterized in that a liquid removal component is installed on the top of the liquid storage tank, the liquid removal component comprises a mounting ring rotatably connected to the top of the circumferential inner wall of the liquid storage tank, a gear ring is coaxially fixed to the top outer wall of the mounting ring, a convex plate is fixedly connected to the top of the circumferential outer wall of the liquid storage tank, a vertically arranged motor 1 is fixedly installed on the top outer wall of the convex plate, a gear is coaxially fixed to the top outer wall of the output end of the motor 1, and the gear and the gear ring are meshed.

[0007] The mounting ring with the filter frame can be driven to rotate in the liquid storage tank, thereby ensuring that the etching liquid attached to the crystals is quickly separated, which is beneficial to improving production efficiency. The etching liquid with precipitated copper-containing crystals is poured into the filter frame, and then the connecting rod is driven to rotate at the bottom of the support frame by starting motor 2. The scraper will also rotate synchronously with the connecting rod, so that the inner wall of the filter frame can be continuously scraped to ensure that the precipitated crystals can be quickly filtered out, which is beneficial to improving processing efficiency.

[0008] As a further preferred embodiment of the present technical solution, a plurality of limit cards are provided on the outer wall at the bottom of the mounting ring, and the plurality of limit cards are arranged relatively to each other, a filter frame is slidably inserted in the mounting ring, and the plurality of limit cards are all engaged in the card holes of the filter frame.

[0009] As a further preferred embodiment of the present technical solution, a scraping assembly is installed on the outside of the liquid storage tank, and the scraping assembly includes a support frame fixedly mounted on the circumferential outer wall of the liquid storage tank, a second motor is fixedly mounted on the top outer wall of the support frame, a connecting rod is rotatably connected to the top inner wall of the support frame, the second motor shaft and the connecting rod are coaxially fixed, a scraper is fixedly connected to the bottom outer wall of the connecting rod, and the scraper is in contact with the inner wall of the filter frame.

[0010] Start the motor 1 on the top of the convex plate, and the motor 1 can drive the gear to rotate synchronously. The gear will drive the mounting ring to rotate inside the liquid storage tank through the gear ring meshing with it. The scraped and concentrated crystals are driven to be swung, and the attached etching liquid is separated by the action of centrifugal force, and then passes through the filter frame and falls into the liquid storage tank.

[0011] As a further preferred embodiment of the present technical solution, the connecting rod is a multi-stage telescopic rod.

[0012] As a further preferred embodiment of the present technical solution, a vertical plate is provided on the outer wall of the top of the scraper, and bolts are threadedly connected in the vertical plate, and the bolts can squeeze the outer wall of the fixing part of the connecting rod.

[0013] As a further preferred embodiment of the present technical solution, two handles are provided on the top outer wall of the filter frame.

[0014] The utility model provides a filtering device for recycling waste liquid from etching of circuit boards, which has the following beneficial effects:

[0015] (1) The utility model is provided with a liquid removal component, which can drive the mounting ring with the filter frame to rotate in the liquid storage tank, thereby ensuring that the etching liquid attached to the crystals is quickly separated, which is beneficial to improving production efficiency. The etching liquid with precipitated copper-containing crystals is poured into the filter frame, and then the connecting rod is driven to rotate at the bottom of the support frame by starting the second motor. The scraper will also rotate synchronously with the connecting rod, so that the inner wall of the filter frame can be continuously scraped, ensuring that the precipitated crystals can be quickly filtered out, which is beneficial to improving processing efficiency.

[0016] (2) The utility model sets a scraping assembly and starts the motor 1 on the top of the convex plate. The motor 1 can drive the gear to rotate synchronously. The gear will drive the mounting ring to rotate inside the liquid storage tank through the gear ring meshing with it. The crystals collected by the scraping are driven to be swung, and the attached etching liquid is separated by the centrifugal force and then passes through the filter frame and falls into the liquid storage tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2This is a schematic diagram of the filter frame and mounting ring structure of the utility model;

[0019] Figure 3 For the utility model Figure 1 The enlarged structural diagram at A in the middle;

[0020] Figure 4 For the utility model Figure 1 The enlarged structural diagram at B in the middle;

[0021] In the figure: 1. liquid storage tank; 2. limit card; 3. filter frame; 4. handle; 5. liquid removal assembly; 6. scraper assembly; 501. mounting ring; 502. gear ring; 503. convex plate; 504. motor one; 505. gear; 601. support frame; 602. connecting rod; 603. scraper; 604. motor two; 605. vertical plate; 606. bolt. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0023] The utility model provides a technical solution: Figure 1 and Figure 3 As shown, in this embodiment, a filtering device for recycling waste liquid from etching of a circuit board includes a liquid storage tank 1, characterized in that: a liquid removal assembly 5 is installed on the top of the liquid storage tank 1, and the liquid removal assembly 5 includes a mounting ring 501 rotatably connected to the top of the circumferential inner wall of the liquid storage tank 1, a gear ring 502 is coaxially fixed to the top outer wall of the mounting ring 501, a convex plate 503 is fixedly connected to the top of the circumferential outer wall of the liquid storage tank 1, a vertically arranged motor 504 is fixedly installed on the top outer wall of the convex plate 503, a gear 505 is coaxially fixed to the top outer wall of the output end of the motor 504, and the gear 505 is meshed with the gear ring 502.

[0024] Start the motor 504 on the top of the convex plate 503, and the motor 504 can drive the gear 505 to rotate synchronously. The gear 505 will drive the mounting ring 501 to rotate inside the liquid storage tank 1 through the gear ring 502 meshing with it, and the crystals scraped and concentrated are driven to be swung, and the attached etching liquid is separated by the action of centrifugal force, and then passes through the filter frame 3 and falls into the liquid storage tank 1.

[0025] like Figure 2 As shown, a plurality of limit cards 2 are provided on the bottom outer wall of the mounting ring 501, and the plurality of limit cards 2 are arranged opposite to each other. A filter frame 3 is slidably inserted in the mounting ring 501, and the plurality of limit cards 2 are all engaged in the card holes of the filter frame 3, so as to ensure that the filter frame 3 can rotate normally with the mounting ring 501, and the filter frame 3 can also be easily removed, making the crystallization process more convenient.

[0026] like Figure 1 As shown, a scraper assembly 6 is installed on the outside of the liquid storage tank 1, and the scraper assembly 6 includes a support frame 601 fixedly mounted on the circumferential outer wall of the liquid storage tank 1, a motor 2 604 is fixedly installed on the top outer wall of the support frame 601, a connecting rod 602 is rotatably connected to the top inner wall of the support frame 601, the rotating shaft of the motor 2 604 and the connecting rod 602 are coaxially fixed, and a scraper 603 is fixedly connected to the bottom outer wall of the connecting rod 602, and the scraper 603 is in contact with the inner wall of the filter frame 3.

[0027] The etching liquid containing precipitated copper crystals is poured into the filter frame 3, and then the connecting rod 602 is driven to rotate at the bottom of the support frame 601 by starting the second motor 604. The scraper 603 will also rotate synchronously with the connecting rod 602, so that the inner wall of the filter frame 3 can be continuously scraped to ensure that the precipitated crystals can be quickly filtered out, which is conducive to improving the processing efficiency.

[0028] like Figure 1 As shown, the connecting rod 602 is a multi-stage telescopic rod. When the scraper 603 is pulled upward, the connecting rod 602 is driven to shrink and shorten, thereby ensuring that the scraper 603 will not hinder the removal and placement of the filter frame 3.

[0029] like Figure 4 As shown, a vertical plate 605 is provided on the top outer wall of the scraper 603, and a bolt 606 is threadedly connected in the vertical plate 605. The bolt 606 can squeeze the outer wall of the fixed part of the connecting rod 602. When the bolt 606 is rotated, the bolt 606 moves along the vertical plate 605 toward the fixed part of the connecting rod 602. When the two are tightly attached together, the position of the scraper 603 can be restricted.

[0030] like Figure 2 As shown, two handles 4 are provided on the top outer wall of the filter frame 3, so that the process of taking and placing the filter frame 3 is more convenient.

[0031] The utility model provides a filtering device for recycling waste liquid from etching of circuit boards, and the specific working principle is as follows:

[0032] When the device is working, the etching liquid containing copper crystals is poured into the filter frame 3, and then the connecting rod 602 is driven to rotate at the bottom of the support frame 601 by starting the motor 2 604, and the scraper 603 will also rotate synchronously with the connecting rod 602, so that the inner wall of the filter frame 3 can be continuously scraped to ensure that the precipitated crystals can be quickly filtered out, which is beneficial to improve the processing efficiency. After the processing is completed, the motor 1 504 on the top of the convex plate 503 is started, and the motor 1 504 can drive the gear 505 to rotate synchronously, and the gear 505 will drive the mounting ring 501 in the liquid storage tank 1 through the gear ring 502 meshing with it. The scraper 603 rotates, and the scraped and concentrated crystals are driven to be swung, and the attached etching liquid is separated under the action of centrifugal force, and then passes through the filter frame 3 and falls into the liquid storage tank 1. Then the scraper 603 is pulled upward, and the connecting rod 602 is driven to shrink and shorten, thereby ensuring that the scraper 603 does not hinder the removal and placement of the filter frame 3. Then the bolt 606 is rotated, and the bolt 606 moves along the vertical plate 605 toward the fixed part of the connecting rod 602. When the two are tightly attached together, the position of the scraper 603 can be restricted. Finally, the filter frame 3 is pulled out of the mounting ring 501 by the handle 4 and can be easily taken out.

[0033] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A filtering device for recycling waste liquid from etching of a circuit board, comprising a liquid storage tank (1), characterized in that: A liquid removal assembly (5) is installed on the top of the liquid storage tank (1), and the liquid removal assembly (5) comprises a mounting ring (501) rotatably connected to the top of the circumferential inner wall of the liquid storage tank (1), a gear ring (502) is coaxially fixed to the top outer wall of the mounting ring (501), a convex plate (503) is fixedly connected to the top of the circumferential outer wall of the liquid storage tank (1), a vertically arranged motor 1 (504) is fixedly installed on the top outer wall of the convex plate (503), a gear (505) is coaxially fixed to the top outer wall of the output end of the motor 1 (504), and the gear (505) is meshed with the gear ring (502).

2. A filtering device for recycling waste liquid from etching of a circuit board according to claim 1, characterized in that: The outer wall at the bottom of the mounting ring (501) is provided with a plurality of limit cards (2), the plurality of limit cards (2) being arranged opposite to each other, a filter frame (3) being slidably inserted in the mounting ring (501), and the plurality of limit cards (2) being all engaged in the engagement holes of the filter frame (3).

3. A filtering device for recycling waste liquid from etching of a circuit board according to claim 1, characterized in that: A scraping assembly (6) is installed outside the liquid storage tank (1), and the scraping assembly (6) comprises a support frame (601) fixedly mounted on the circumferential outer wall of the liquid storage tank (1), a second motor (604) is fixedly installed on the top outer wall of the support frame (601), a connecting rod (602) is rotatably connected to the top inner wall of the support frame (601), the rotating shaft of the second motor (604) and the connecting rod (602) are coaxially fixed, and a scraper (603) is fixedly connected to the bottom outer wall of the connecting rod (602), and the scraper (603) is in contact with the inner wall of the filter frame (3).

4. A filtering device for recycling waste liquid from etching of a circuit board according to claim 3, characterized in that: The connecting rod (602) is a multi-stage telescopic rod.

5. A filtering device for recycling waste liquid from etching of a circuit board according to claim 3, characterized in that: The top outer wall of the scraper (603) is provided with a vertical plate (605), and a bolt (606) is threadedly connected in the vertical plate (605). The bolt (606) can squeeze the connecting rod (602) to fix part of the outer wall.

6. A filtering device for recycling waste liquid from etching of a circuit board according to claim 2, characterized in that: Two handles (4) are provided on the top outer wall of the filter frame (3).

Images