Equipment for recovering copper from circuit board micro-etching waste liquid

Abstract

The utility model relates to the technical field of printed circuit boards, and discloses circuit board micro-etching waste liquid copper recovery equipment which comprises an electrolytic tank, a top plate fixedly connected to the top of the electrolytic tank, a cover plate arranged on one side of the top of the top plate, a positive plate fixedly connected to the middle of the bottom of the top plate, and a support fixedly connected to the other end of the top of the electrolytic tank. The tops of the two supports are fixedly connected with the same cross plate, the two sides of the bottom of the cross plate are fixedly connected with sliding rods, the bottoms of the two sliding rods are fixedly connected to the top of the top plate, the circumferential surfaces of the two sliding rods are slidably connected with the same T-shaped plate, the two ends of the T-shaped plate are provided with round holes matched with the sliding rods, and the bottom of the T-shaped plate is fixedly connected with a negative plate. The device has the technical effects that a user does not need to manually and frequently collect copper on the negative plate, the device can automatically collect the copper, the labor intensity of the user is reduced, and the working efficiency of copper recovery is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of printed circuit boards, in particular to a device for recovering copper from waste liquid micro-etching of circuit boards. Background Art

[0002] Circuit board chemical etching technology is a technology used in the manufacturing process of printed circuit boards. It is mainly used to remove unnecessary copper layers on printed circuit patterns by chemical dissolution, leaving the required circuit pattern, and achieving precise removal of the copper layer. The generated micro-etching waste liquid contains copper ions, which generally need to be recovered by electrolysis before being processed and discharged.

[0003] In the prior art, when copper is recovered from micro-etching waste liquid by electrolysis, when a large amount of copper is attached to the cathode plate, the user is generally required to take the negative plate out of the electrolytic cell, remove the copper on it, and then insert it back into the electrolytic cell. This makes the user's work intensity high and cumbersome when using it, resulting in low efficiency. For this reason, a circuit board micro-etching waste liquid copper recovery equipment is designed. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a copper recovery device for circuit board micro-etching waste liquid.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A copper recovery device for waste micro-etching liquid of a circuit board comprises an electrolytic cell, wherein a top plate is fixedly connected to the top of the electrolytic cell, a cover plate is arranged on one side of the top of the top plate, a positive plate is fixedly connected to the middle position of the bottom of the top plate, a bracket is fixedly connected to the other end of the top of the electrolytic cell, two tops of the brackets are fixedly connected to the same cross plate, both sides of the bottom of the cross plate are fixedly connected to sliding rods, the bottoms of the two sliding rods are fixedly connected to the top of the top plate, the circumferential surfaces of the two sliding rods are slidably connected to the same T-plate, both ends of the T-plate are provided with circular holes adapted to the sliding rods, a negative plate is fixedly connected to the bottom of the T-plate, and a rectangular hole adapted to the negative plate is provided at the negative plate of the top plate, a second motor is fixedly connected to one end of the top of the cross plate away from the cover plate, a screw rod is fixedly connected to the bottom output end of the second motor through the cross plate, and the screw rod bottom thread passes through the T-plate and is rotatably connected to the top of the top plate, and a threaded hole adapted to the screw rod is provided on the T-plate.

[0007] As a further solution of the utility model, the top of the top plate is located on both ends of both sides of the two brackets and are fixedly connected with vertical blocks, the tops of the two vertical blocks on the same side are fixedly connected with the same sliding rod, the sliding sleeves on the circumferential surfaces of the two sliding rods are provided with the same collection box, the two sliding rods are located at one end of the second motor and are sleeved with a spring, the two sliding rods are located at the top of the T-plate and are slidingly sleeved with the same lifting plate, both ends of the lifting plate are provided with circular holes compatible with the sliding rods, the lifting plate is rotatably connected with connecting rods at both ends of the side close to the collection box, and the other ends of the two connecting rods are rotatably connected to the two sides of the collection box.

[0008] As a further solution of the utility model, a third motor is fixedly connected to one end of the top of the cross plate close to the collection box, and an elastic rod is fixedly connected to the bottom output end of the third motor through the cross plate, and knocking blocks are fixedly connected to both ends of the elastic rod, so that the elemental copper will fall into the collection box by knocking the knocking blocks.

[0009] As a further solution of the utility model, a connecting pipe is fixedly connected to the top of one side of the electrolytic cell, the other end of the connecting pipe is fixedly connected to a mixing tank, and a second control valve is serially connected to the connecting pipe.

[0010] As a further solution of the utility model, a stirring shaft is rotatably connected between the two ends of the inner side of the mixing pool near the bottom, a plurality of stirring rods are fixedly connected to the circumferential surface of the stirring shaft, a first motor is fixedly connected to one end of the outer side of the mixing pool, an output end of the first motor passes through the mixing pool and is fixedly connected to one end of the stirring shaft, and stirring of the mixed liquid is achieved by the stirring shaft and the first motor, so that the electrolyte and the waste liquid are fully mixed.

[0011] As a further solution of the utility model, a drain rod is fixedly connected to the bottom of the outer wall of the electrolytic cell, and the drain rod realizes the discharge of waste liquid. A first control valve is arranged on the drain rod, and a filter screen is arranged at one end of the drain rod close to the electrolytic cell.

[0012] The beneficial effects of the utility model are:

[0013] The utility model adopts the technical means of a second motor, a screw rod, a T-plate, a sliding rod, a lifting plate, a connecting rod, a collecting box, a vertical block, a sliding rod, a third motor, an elastic rod and a knocking block. When a large amount of copper is attached to the negative plate, the second motor is started to drive the T-plate and the negative plate to rise through the screw rod. When the T-plate is against the lifting plate, the lifting plate will be driven to rise. Under the action of the two connecting rods, the collecting box approaches the bottom of the negative plate and compresses the spring. When the T-plate rises to the highest point, the collecting box is located directly below the negative plate. The third motor is started to rotate the elastic rod with the two knocking blocks, so that the knocking blocks knock the negative plate, so that the copper attached to the negative plate falls onto the collecting box, which effectively solves the problems raised in the background technology, and further realizes that there is no need for users to manually and frequently collect the copper on the negative plate. The device can automatically collect the copper, reduces the labor intensity of users, and improves the work efficiency of copper recovery.

[0014] The utility model: through the arrangement of the first motor and the stirring shaft, the micro-etching waste liquid is injected into the mixing tank through the pump, and a proper amount of electrolyte is added into the mixing tank, and the first motor is started so that the stirring shaft stirs the mixed solution, and after sufficient mixing, the electrolysis efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a circuit board micro-etching waste liquid copper recovery device proposed by the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the top plate of a circuit board micro-etching waste liquid copper recovery device proposed by the utility model Figure 1 ;

[0017] Figure 3 This is a schematic diagram of the structure of the top plate of a circuit board micro-etching waste liquid copper recovery device proposed by the utility model Figure 2 ;

[0018] Figure 4 The utility model provides a schematic diagram of the structure inside a mixing tank of a circuit board micro-etching waste liquid copper recovery device.

[0019] In the figure: 1, electrolytic cell; 101, drain rod; 102, top plate; 103, first control valve; 104, cover plate; 2, mixing tank; 201, connecting pipe; 202, second control valve; 204, first motor; 205, stirring shaft; 3, positive plate; 4, negative plate; 5, bracket; 501, cross plate; 6, second motor; 601, screw rod; 7, T-plate; 8, sliding rod; 9, lifting plate; 10, connecting rod; 11, collecting box; 12, vertical block; 13, sliding rod; 14, spring; 15, third motor; 16, elastic rod; 17, knocking block. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0022] Reference Figure 1-Figure 4 A circuit board micro-etching waste liquid copper recovery device comprises an electrolytic cell 1, a top plate 102 is fixedly connected to the top of the electrolytic cell 1, a cover plate 104 is arranged on one side of the top of the top plate 102, a positive plate 3 is fixedly connected to the middle position of the bottom of the top plate 102, a bracket 5 is fixedly connected to the other end of the top of the electrolytic cell 1, the tops of the two brackets 5 are fixedly connected to the same cross plate 501, the bottoms of the cross plate 501 are fixedly connected to sliding rods 8, the bottoms of the two sliding rods 8 are fixedly connected to the top of the top plate 102, and the circumferential surfaces of the two sliding rods 8 are slidably connected to the same T-shaped Plate 7, both ends of the T-plate 7 are provided with round holes adapted to the slide bar 8, the bottom of the T-plate 7 is fixedly connected to the negative plate 4, and the top plate 102 is located at the negative plate 4 and provided with a rectangular hole adapted to the negative plate 4, the end of the top of the cross plate 501 away from the cover plate 104 is fixedly connected to the second motor 6, the bottom output end of the second motor 6 passes through the cross plate 501 and is fixedly connected to a screw rod 601, and the bottom thread of the screw rod 601 passes through the T-plate 7 and is rotatably connected to the top of the top plate 102, and the T-plate 7 is provided with a threaded hole adapted to the screw rod 601.

[0023] In this embodiment, the top of the top plate 102 is located on both sides of the two brackets 5 and is fixedly connected with vertical blocks 12 at both ends, the tops of the two vertical blocks 12 on the same side are fixedly connected with the same sliding rod 13, the circumferential surface of the two sliding rods 13 is slidingly sleeved with the same collecting box 11, the two sliding rods 13 are located at one end of the second motor 6 and are sleeved with springs 14, the two sliding rods 8 are located at the top of the T-shaped plate 7 and are slidingly sleeved with the same lifting plate 9, and circular holes matching the sliding rods 8 are opened at both ends of the lifting plate 9, the lifting plate 9 is rotatably connected with connecting rods 10 at both ends of the side close to the collecting box 11, and the other ends of the two connecting rods 10 are rotatably connected to the two sides of the collecting box 11, and the setting of the spring 14 makes the collecting box 11 automatically move away from the negative plate 4 in the absence of the connecting rod 10 pulling.

[0024] In this embodiment, a third motor 15 is fixedly connected to one end of the top of the cross plate 501 close to the collecting box 11, and an elastic rod 16 is fixedly connected to the bottom output end of the third motor 15 through the cross plate 501. Both ends of the elastic rod 16 are fixedly connected to knocking blocks 17. Through continuous knocking of the knocking blocks 17, the elemental copper on the negative plate 4 falls into the collecting box 11.

[0025] In this embodiment, a connecting pipe 201 is fixedly connected to the top of one side of the electrolytic cell 1 , and the other end of the connecting pipe 201 is fixedly connected to the mixing tank 2 . A second control valve 202 is serially arranged on the connecting pipe 201 .

[0026] In this embodiment, a stirring shaft 205 is rotatably connected between the two ends of the inner side of the mixing pool 2 near the bottom, and a plurality of stirring rods are fixedly connected to the circumferential surface of the stirring shaft 205. A first motor 204 is fixedly connected to one end of the outer side of the mixing pool 2. The output end of the first motor 204 passes through the mixing pool 2 and is fixedly connected to one end of the stirring shaft 205. The mixed liquid is stirred by the rotation of the stirring shaft 205.

[0027] In this embodiment, a drain rod 101 is fixedly connected to the bottom of the outer wall of the electrolytic cell 1, a first control valve 103 is provided on the drain rod 101, and a filter is provided at one end of the drain rod 101 close to the electrolytic cell 1. The filter prevents the elemental copper dropped into the electrolytic cell 1 from being discharged, and the inside of the electrolytic cell 1 can be cleaned by opening the cover plate 104.

[0028] Working principle: A circuit board micro-etching waste liquid copper recovery equipment. When in use, the micro-etching waste liquid is pumped into the mixing tank 2, and an appropriate amount of electrolyte is added to the mixing tank 2. The first motor 204 is started to make the stirring shaft 205 stir the mixed solution. After sufficient mixing, the second control valve 202 is opened to allow the mixed solution to enter the electrolytic cell 1, and the negative plate 4 and the positive plate 3 are connected to the power supply to electrolyze the micro-etching waste liquid, so that the copper ions are attached to the negative plate 4 through the electrolytic reaction. When more copper is attached to the negative plate 4, the second motor 6 is started to drive the T-plate 7 and the negative plate 3 through the screw rod 601. Plate 4 rises, and when T-plate 7 is against lifting plate 9, it will drive lifting plate 9 to rise. Under the action of two connecting rods 10, collecting box 11 approaches the bottom of negative plate 4 and compresses spring 14. When T-plate 7 rises to the highest point, collecting box 11 is located directly below negative plate 4. Start the third motor 15 to make elastic rod 16 rotate with two knocking blocks 17, so that knocking blocks 17 knock against negative plate 4, so that the attached single copper on negative plate 4 falls onto collecting box 11. After completion, the third motor 15 stops and the second motor 6 reverses, so that negative plate 4 returns to the inside of electrolytic cell 1 to continue working.

[0029] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0030] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0031] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A copper recovery device for circuit board micro-etching waste liquid, comprising an electrolytic cell (1), characterized in that: The top of the electrolytic cell (1) is fixedly connected to a top plate (102), a cover plate (104) is provided on one side of the top of the top plate (102), a positive plate (3) is fixedly connected to the middle position of the bottom of the top plate (102), the other end of the top of the electrolytic cell (1) is fixedly connected to a bracket (5), the tops of the two brackets (5) are fixedly connected to the same cross plate (501), the bottoms of the cross plate (501) are fixedly connected to sliding rods (8), the bottoms of the two sliding rods (8) are fixedly connected to the top of the top plate (102), the circumferential surfaces of the two sliding rods (8) are slidably connected to the same T-shaped plate (7), the T-shaped plate (7 ) are provided with round holes matching the slide bar (8) at both ends of the T-shaped plate (7), the bottom of the T-shaped plate (7) is fixedly connected to the negative plate (4), and the top plate (102) is provided with a rectangular hole matching the negative plate (4) at the negative plate (4), the top of the cross plate (501) is fixedly connected to the second motor (6) at one end away from the cover plate (104), the bottom output end of the second motor (6) passes through the cross plate (501) and is fixedly connected to a screw rod (601), and the bottom thread of the screw rod (601) passes through the T-shaped plate (7) and is rotatably connected to the top of the top plate (102), and the T-shaped plate (7) is provided with a threaded hole matching the screw rod (601).

2. The copper recovery equipment for circuit board micro-etching waste liquid according to claim 1 is characterized in that: The top of the top plate (102) is located on both sides of the two brackets (5) and is fixedly connected to vertical blocks (12). The tops of the two vertical blocks (12) on the same side are fixedly connected to the same sliding rod (13). The circumferential surfaces of the two sliding rods (13) are slidably sleeved with the same collection box (11). The two sliding rods (13) are located at one end of the second motor (6) and are sleeved with a spring (14). The two sliding rods (8) are located at the top of the T-shaped plate (7) and are slidably sleeved with the same lifting plate (9). Both ends of the lifting plate (9) are provided with circular holes that are compatible with the sliding rods (8). The lifting plate (9) is rotatably connected to connecting rods (10) at both ends of the side close to the collection box (11). The other ends of the two connecting rods (10) are rotatably connected to the two sides of the collection box (11).

3. The copper recovery equipment for circuit board micro-etching waste liquid according to claim 1 is characterized in that: A third motor (15) is fixedly connected to one end of the top of the cross plate (501) close to the collection box (11), and an output end at the bottom of the third motor (15) passes through the cross plate (501) and is fixedly connected to an elastic rod (16), and knocking blocks (17) are fixedly connected to both ends of the elastic rod (16).

4. The copper recovery equipment for circuit board micro-etching waste liquid according to claim 1 is characterized in that: A connecting pipe (201) is fixedly connected to the top of one side of the electrolytic cell (1), the other end of the connecting pipe (201) is fixedly connected to a mixing tank (2), and a second control valve (202) is serially connected to the connecting pipe (201).

5. The copper recovery equipment for circuit board micro-etching waste liquid according to claim 4 is characterized in that: A stirring shaft (205) is rotatably connected between the two ends of the inner side of the mixing tank (2) near the bottom, and a plurality of stirring rods are fixedly connected to the circumferential surface of the stirring shaft (205). A first motor (204) is fixedly connected to one end of the outer side of the mixing tank (2), and an output end of the first motor (204) passes through the mixing tank (2) and is fixedly connected to one end of the stirring shaft (205).

6. The copper recovery equipment for circuit board micro-etching waste liquid according to claim 1 is characterized in that: A drain rod (101) is fixedly connected to the bottom of the outer wall of the electrolytic cell (1), a first control valve (103) is arranged on the drain rod (101), and a filter screen is arranged at one end of the drain rod (101) close to the electrolytic cell (1).

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