Full-automatic micro-etching liquid cyclic regeneration device

Abstract

The utility model discloses a full-automatic micro-etching liquid cyclic regeneration device which comprises an electrolytic bath, a liquid inlet interface and a liquid outlet interface are respectively arranged on the side wall of the electrolytic bath, cathode plates and anode plates are distributed in the electrolytic bath at intervals in a staggered manner, and hanging lug parts are fixed at two corners close to the upper side of each cathode plate. And the lug hanging parts are connected with the inner wall of the electrolytic tank in an inserted mode, supports are symmetrically installed on the two sides of the electrolytic tank, a first lead screw moving mechanism is erected between the two supports, a cross beam is installed below the first lead screw moving mechanism through a telescopic piece, and clamping jaw mechanisms are symmetrically fixed to the two ends of the cross beam. According to the utility model, the clamping jaw mechanism is arranged to grab the cathode plate, so that the trouble of manual disassembly is saved, the cathode plate is more convenient and stable to disassemble relative to an electrolytic bath, the situation that copper powder is scattered into micro-etching liquid during disassembly is effectively reduced, the possibility of secondary electrolytic treatment on the micro-etching liquid is reduced, and the production efficiency is improved. Therefore, the micro-etching liquid regeneration efficiency is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of micro-etching liquid regeneration, in particular to a fully automatic micro-etching liquid circulation regeneration device. Background Art

[0002] Micro-etching liquid is a liquid used for etching of printed circuit boards. As the etching process proceeds, the excess copper on the PCB is corroded and removed, and the copper concentration in the solution increases, causing the etching efficiency of the etching liquid to gradually decrease. At this time, the etching liquid becomes waste liquid and is discharged. However, the etching waste liquid contains a large amount of copper ions, and direct discharge causes greater pollution. Therefore, electrolytic removal of oxidants - electrodeposition copper process is often used to treat micro-etching waste liquid, thereby reducing the copper ion concentration in the micro-etching waste liquid to facilitate the reuse of the micro-etching liquid.

[0003] When the current micro-etching solution is used for copper electrodeposition, copper powder will adhere to the cathode plate of the electrolytic cell. After the electrolysis is completed, the cathode plate is usually manually disassembled to collect the copper powder on its surface. However, manual disassembly can easily cause the cathode plate to vibrate, causing the copper powder on the cathode plate surface to scatter in the micro-etching solution, which is not only not conducive to the recovery of copper powder, but also affects the recycling of the micro-etching solution.

[0004] To this end, we proposed a fully automatic micro-etching liquid recycling and regeneration device to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a fully automatic micro-etching liquid circulation regeneration device to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A fully automatic micro-etching liquid circulation and regeneration device comprises an electrolytic cell, wherein a liquid inlet interface and a liquid outlet interface are respectively arranged on the side walls of the electrolytic cell, and cathode plates and anode plates are staggeredly distributed inside the electrolytic cell, and the two corners of the cathode plate on the upper side are fixed with hanging ears, and the hanging ears are plug-connected with the inner wall of the electrolytic cell, brackets are symmetrically installed on both sides of the electrolytic cell, and a first screw moving mechanism is set between the two brackets, a crossbeam is installed below the first screw moving mechanism through a telescopic member, and clamping claw mechanisms are symmetrically fixed at both ends of the crossbeam;

[0008] The first lead screw moving mechanism includes a lead screw and a ball slide, and one end of the lead screw is connected to a servo motor, the ball slide is threadedly connected to the lead screw, and a light rod parallel to the lead screw is slidably penetrated inside the ball slide;

[0009] The clamp mechanism includes a door-type plate and a clamping plate symmetrically slidably connected inside the door-type plate, the insides of the two clamping plates are penetrated and threadedly connected with a same double-headed screw, and one end of the double-headed screw passing through the side wall of the door-type plate is connected to a servo motor 2.

[0010] In a further embodiment, the cross section of the ear hook portion adopts a T-shaped structure, and the cross section of the clamping plate adopts an L-shaped structure that matches the ear hook portion.

[0011] In a further embodiment, a limiting block is fixed on the clamping plate, and the limiting block passes through the top surface of the door-shaped plate and is slidably connected thereto.

[0012] In a further embodiment, a bevel gear 1 is installed at the connection between the servo motor 2 and the double-headed screw, and the outer edge of the bevel gear 1 is meshedly connected with the bevel gear 2, and the bevel gears 2 in the two clamping mechanisms are connected by a connecting rod.

[0013] In a further embodiment, a second screw moving mechanism is also installed on the bracket. The second screw moving mechanism has the same structure as the first screw moving mechanism, and the second screw moving mechanism and the first screw moving mechanism are perpendicular to each other to control the forward and backward movement of the first screw moving mechanism.

[0014] In a further embodiment, the telescopic member is one of an electric push rod, a pneumatic cylinder, and a hydraulic cylinder.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model provides a clamping claw mechanism to grasp the ear portion of the cathode plate, and then utilizes the contraction of the telescopic member to drive the cathode plate to be drawn out of the electrolytic cell, and through the movement of the first screw moving mechanism, the cathode plates in the electrolytic cell can be drawn out one by one, eliminating the trouble of manual disassembly, thereby making the disassembly of the cathode plate relative to the electrolytic cell more convenient and stable, thereby effectively reducing the situation where copper powder is scattered into the micro-etching solution during disassembly, reducing the possibility of secondary electrolysis treatment of the micro-etching solution, thereby effectively improving the efficiency of regeneration of the micro-etching solution. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] Figure 2 This is a schematic diagram of the semi-sectional structure of the electrolytic cell of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the first screw moving mechanism of the utility model;

[0020] Figure 4 For this utility model Figure 2 Schematic diagram of the local enlarged structure at point A in the middle.

[0021] In the figure: 1, electrolytic cell; 2, liquid inlet interface; 3, liquid outlet interface; 4, cathode plate; 41, ear portion; 5, anode plate; 6, bracket; 7, first screw moving mechanism; 71, screw; 72, ball slide; 73, servo motor one; 74, light rod; 8, telescopic member; 9, crossbeam; 10, clamping claw mechanism; 101, door plate; 102, clamping plate; 1021, limit block; 103, double-headed screw; 104, servo motor two; 105, bevel gear one; 106, bevel gear two; 107, connecting rod; 11, second screw moving mechanism. DETAILED DESCRIPTION

[0022] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0023] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood by specific circumstances.

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-2A fully automatic micro-etching liquid recycling and regeneration device comprises an electrolytic cell 1, and a liquid inlet interface 2 and a liquid outlet interface 3 are respectively arranged on the side walls of the electrolytic cell 1. The liquid inlet interface 2 is arranged near the upper end of the electrolytic cell 1 and is used to connect an electrolytic oxidant removal device, so that the micro-etching waste liquid is discharged into the electrolytic cell 1 for copper electrodeposition after the internal oxidant is reduced to zero by the oxygen removal device, and the liquid outlet interface 3 can be externally connected to a regeneration proportioning device of the micro-etching liquid, so as to facilitate the recycling of the copper-removing micro-etching liquid. The inner space of the electrolytic cell 1 is staggered with cathode plates 4 and anode plates 5, and the two corners of the cathode plate 4 on the upper side are fixed with ear parts 41, and the ear parts 41 are plug-connected to the inner wall of the electrolytic cell 1, and after the ear parts 41 are plug-connected and fixed, a part of them still protrudes from the upper end surface of the electrolytic cell 1. 1 is symmetrically installed with brackets 6, and a first screw moving mechanism 7 is set between the two brackets 6, a telescopic member 8 is installed below the first screw moving mechanism 7, the telescopic member 8 can be but not limited to one of an electric push rod, a cylinder, and a hydraulic cylinder, a beam 9 is installed at the lower output end of the telescopic member 8, and a clamping mechanism 10 is symmetrically fixed at both ends of the beam 9, the first screw moving mechanism 7 is used to drive the telescopic member 8, the beam 9 and the clamping mechanism 10 to move along the length direction of the electrolytic cell 1, so as to move to the cathode plate 4 above different positions, and the telescopic member 8 controls the clamping mechanism 10 to approach or move away from the cathode plate 4 when it is extended and retracted, and the clamping mechanism 10 grabs the ear portion 41 of the cathode plate 4, thereby pulling the cathode plate 4 out of the electrolytic cell 1, improving the convenience and stability of the cathode plate 4 when it is taken out.

[0026] See also Figure 3 In order to facilitate the movement of the clamping mechanism 10, a first screw moving mechanism 7 is provided, which includes a screw 71 and a ball slide 72. The screw 71 can rotate relative to the bracket 6, and one end of the screw 71 is connected to a servo motor 73. The screw 71 passes through the ball slide 72, and the ball slide 72 is threadedly connected to the screw 71, so that when the servo motor 73 drives the screw 71 to rotate, the ball slide 72 can move along the length direction of the screw 71, and the interior of the ball slide 72 is also slidably penetrated by a light rod 74 which is parallel to the screw 71, so as to limit the ball slide 72 and prevent the ball slide 72 from deflecting;

[0027] See also Figure 1In order to further prevent the copper powder from falling back into the micro-etching liquid, a second screw moving mechanism 11 is also installed on the bracket 6. The second screw moving mechanism 11 extends to the rear of the electrolytic cell 1. The second screw moving mechanism 11 has the same structure as the first screw moving mechanism 7, and the second screw moving mechanism 11 and the first screw moving mechanism 7 are perpendicular to each other. Both ends of the screw 71 in the first screw moving mechanism 7 are rotatably connected to the ball slide 72 in the second screw moving mechanism 11, so as to drive the first screw moving mechanism 7 to move forward and backward as a whole, so that the cathode plate 4 can be moved away from the top of the electrolytic cell 1. At this time, the cathode plate 4 is removed and the copper powder will not fall into the electrolytic cell 1.

[0028] See also Figure 4 In order to conveniently grasp the cathode plate 4, a clamping mechanism 10 is provided, which includes a door-shaped plate 101 and a clamping plate 102 symmetrically slidably connected to the inside of the door-shaped plate 101. The middle of the top surface of the door-shaped plate 101 is fixed to the crossbeam 9. The insides of the two clamping plates 102 are penetrated and threadedly connected with the same double-headed screw 103, and the thread directions of the two clamping plates 102 and the double-headed screw 103 are opposite, and a limit block 1021 is fixed on the clamping plate 102, and the limit block 1021 penetrates the top surface of the door-shaped plate 101. A sliding groove is provided on the top surface of the mold plate 101, so that the limit block 1021 can slide in the sliding groove, thereby limiting the splint 102 without affecting its movement, which is beneficial to prevent its deflection. When the double-headed screw 103 rotates, the two splints 102 can clamp the cathode plate 4 when they are close to each other, and can loosen the cathode plate 4 when they are away from each other. One end of the double-headed screw 103 passing through the side wall of the door mold plate 101 is connected to a servo motor 104, and the servo motor 104 is used to drive the double-headed screw 103 to rotate.

[0029] See also Figure 4 In order to improve the firmness of the clamping plate 102 when grasping, the cross-section of the hook portion 41 is set to adopt a T-shaped structure, and the cross-section of the clamping plate 102 adopts an L-shaped structure that matches the hook portion 41, so that when the clamping plate 102 clamps the hook portion 41, the raised parts can be interlocked with each other, thereby preventing the possibility of the hook portion 41 slipping when being lifted.

[0030] See also Figure 4 In order to ensure that the two clamping jaw mechanisms 10 can synchronously grasp the two ear parts 41 of the cathode plate 4, a bevel gear 105 is installed at the connection between the servo motor 104 and the double-headed screw 103, and the outer edge of the bevel gear 105 is meshed with the bevel gear 106. The bevel gears 106 in the two clamping jaw mechanisms 10 are connected by a connecting rod 107, so that the two clamping jaw mechanisms 10 can be driven by the same servo motor 104, thereby ensuring the synchronization during clamping or loosening.

[0031] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0032] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A fully automatic micro-etching solution circulation regeneration device, comprising an electrolytic cell (1), characterized in that: The side walls of the electrolytic cell (1) are respectively provided with a liquid inlet interface (2) and a liquid outlet interface (3), and the interior of the electrolytic cell (1) is staggered with cathode plates (4) and anode plates (5), and the cathode plates (4) are fixed with hanging ears (41) at two upper corners, and the hanging ears (41) are plug-connected with the inner wall of the electrolytic cell (1), and brackets (6) are symmetrically installed on both sides of the electrolytic cell (1), and a first screw moving mechanism (7) is arranged between the two brackets (6), and a crossbeam (9) is installed below the first screw moving mechanism (7) through a telescopic member (8), and clamping claw mechanisms (10) are symmetrically fixed at both ends of the crossbeam (9); The first screw moving mechanism (7) comprises a screw (71) and a ball slide (72), one end of the screw (71) is connected to a servo motor (73), the ball slide (72) is threadedly connected to the screw (71), and a light rod (74) parallel to the screw (71) is slidably penetrated inside the ball slide (72); The clamping mechanism (10) comprises a door-shaped plate (101) and a clamping plate (102) symmetrically slidably connected inside the door-shaped plate (101); the interiors of the two clamping plates (102) are penetrated by and threadedly connected with a same double-headed screw (103); and one end of the double-headed screw (103) passing through the side wall of the door-shaped plate (101) is connected to a second servo motor (104).

2. The fully automatic micro-etching liquid circulation regeneration device according to claim 1 is characterized in that: The cross section of the hanging ear portion (41) adopts a T-shaped structure, and the cross section of the clamping plate (102) adopts an L-shaped structure that matches the hanging ear portion (41).

3. The fully automatic micro-etching liquid circulation regeneration device according to claim 1 is characterized in that: A limiting block (1021) is fixed on the clamping plate (102), and the limiting block (1021) penetrates the top surface of the door-shaped plate (101) and is slidably connected thereto.

4. The fully automatic micro-etching liquid circulation regeneration device according to claim 1 is characterized in that: A bevel gear 1 (105) is installed at the connection between the servo motor 2 (104) and the double-headed screw (103), and the outer edge of the bevel gear 1 (105) is meshedly connected with the bevel gear 2 (106), and the bevel gears 2 (106) in the two clamping jaw mechanisms (10) are connected via a connecting rod (107).

5. The fully automatic micro-etching liquid circulation regeneration device according to claim 1 is characterized in that: A second screw moving mechanism (11) is also mounted on the bracket (6); the second screw moving mechanism (11) has the same structure as the first screw moving mechanism (7), and the second screw moving mechanism (11) and the first screw moving mechanism (7) are perpendicular to each other so as to control the forward and backward movement of the first screw moving mechanism (7).

6. The fully automatic micro-etching liquid circulation regeneration device according to claim 1 is characterized in that: The telescopic member (8) is one of an electric push rod, a pneumatic cylinder and a hydraulic cylinder.

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