Continuous filter cartridge for PCB (printed circuit board) gold plating liquid

Abstract

The utility model belongs to the technical field of gold plating, and discloses a PCB (printed circuit board) gold plating liquid continuous filter cartridge which comprises a gold plating tank, the gold plating tank is in a rectangular shell shape with the upper end open. A water outlet is formed in the lower end of the gold plating tank. A first rotating roller, a second rotating roller and a third rotating roller which are symmetrically arranged are arranged in the gold plating tank, the first rotating roller and the second rotating roller are located at opposite position heights, the height of the central axis of the third rotating roller is lower than that of the central axis of the first rotating roller, and the central axis of the third rotating roller is located in a vertical symmetric plane of the first rotating roller and the second rotating roller; the two ends of the first roller, the second roller and the third roller are attached to the inner side wall of the gold plating tank, and the first roller is fixed to the inner side wall of the gold plating tank; the two filter plates are obliquely arranged, so that the effective filtering area is increased, filter residues on the filter plates are gathered towards the lower end area between the two filter plates under the action of gravity in the filtering process, the blocked area of the filter plates is effectively reduced, and the filtering efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to gold plating technical field, concretely relates to a PCB board gold plating liquid continuous filter cartridge. BACKGROUND

[0002] PCB board gold plating process is through electroplating and is plated on copper foil layer, and the PCB board is placed in electroplating solution as cathode in gold plating process, and anode rod is anode, and direct current is passed, so gold in electroplating solution will be attached to the surface of copper foil layer, and a layer of gold plating layer is formed. Some free debris will be generated in electroplating solution in the gold plating process, and if not handled, the debris will be attached to the PCB board, which affects the gold plating effect, and the currently adopted mode is to filter and handle electroplating solution periodically.

[0003] For example, the Chinese patent with the application number CN201820296163.2 discloses a PCB board gold plating liquid continuous filter cartridge, which comprises a gold plating tank and a filter cartridge body. The left and right sides of the filter cartridge body are each connected to a clamping plate, which is clamped on the side wall of the gold plating tank. The bottom wall of the filter cartridge body is a filter screen. A filter material frame containing carbon core filter material is arranged in the filter cartridge body. The gold plating liquid passes through the carbon core filter material and then enters the interior of the gold plating tank. The utility model has the following beneficial effects: the clamping plate is clamped on the side wall of the gold plating tank, and the filter material frame is clamped on the filter cartridge body through the clamping rod. The components of the entire filter cartridge are convenient to disassemble and assemble, and the components are convenient to clean and replace. The carbon core filter material is used for adsorption and filtration, and the filtration effect is good. The filter cartridge is arranged on the gold plating tank, and continuous filtration can be achieved in combination with the electroplating solution circulating device.

[0004] However, during the filtration process, the filter residue directly falls on the horizontally placed filter screen. When a thin layer of filter residue is laid on the filter screen, the filter residue can block the filter screen, affecting the filtration efficiency and effect during the filtration process. Therefore, the existing technology has the problem that the filtration effective area is easily blocked, which affects the filtration efficiency. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model aims to provide a PCB board gold plating liquid continuous filter cartridge, which solves the problem that the filtration effective area is easily blocked in the prior art, which affects the filtration efficiency.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] A PCB board gold plating liquid continuous filter cartridge comprises a gold plating tank.

[0008] The gold plating tank is in the shape of a rectangular shell with an open upper end. A drain port is formed in the lower end of the gold plating tank.

[0009] The first rotating roller, the second rotating roller and the third rotating roller are symmetrically arranged in the gold plating tank, the first rotating roller and the second rotating roller are in a relative position height, the third rotating roller center axis height is lower than the first rotating roller center axis height, and the third rotating roller center axis is located in the vertical symmetry plane of the first rotating roller and the second rotating roller, the two ends of the first rotating roller, the second rotating roller and the third rotating roller are attached to the inner side wall of the gold plating tank, the first rotating roller is fixed to the inner side wall of the gold plating tank, and the second rotating roller and the third rotating roller are slidingly connected to the inner wall of the gold plating tank.

[0010] A pair of symmetrically arranged filter plates are rotatably connected to the third rotating roller, the two filter plates are symmetrically arranged about the vertical plane in which the third rotating roller center axis is located, the upper ends of the two filter plates are rotatably connected to the peripheral walls of the first rotating roller and the second rotating roller, and the two sides of the filter plates along the first rotating roller axis direction are slidingly attached to the two side walls of the gold plating tank.

[0011] The second rotating roller is fixedly connected with a sliding block at both ends, and the sliding block is slidingly connected to the upper end of the gold plating tank.

[0012] The above technical scheme has the following principles and effects:

[0013] When the gold plating liquid needs to be filtered, the gold plating liquid in the gold plating tank is discharged from the drain, and then the discharged gold plating liquid is collected and re-transported into the upper ends of the two filter plates, the gold plating liquid is filtered by the two filter plates on the third rotating roller, and the two filter plates are inclined, which not only increases the effective area of filtration, but also effectively reduces the area of filter plate blockage and improves the filtration efficiency by gathering the filter residue on the filter plate to the lower end area between the two filter plates under the action of gravity during the filtration process. When the filter is not in the filtering state, the two filter plates can be driven to approach each other and shrink.

[0014] Meanwhile, the second rotating roller can be driven to approach or move away from the first rotating roller, thereby controlling the size of the included angle between the two filter plates, and the angle can be flexibly adjusted according to different filtering requirements to adapt to different types or concentrations of impurities, thereby enhancing the flexibility and applicability of the filtering system.

[0015] A horizontal screw is arranged outside the gold plating tank, the screw is vertically arranged with the first rotating roller, any sliding block is threadedly sleeved on the screw, and first ear plates are rotatably sleeved on both ends of the screw, and the first ear plates are fixed to the outer side wall of the gold plating tank.

[0016] A rotating motor is fixedly installed on any first ear plate, and an output end of the rotating motor is connected with one end of the screw.

[0017] A pair of symmetrically arranged second ear plates are fixed to the outer side wall of the gold plating tank, a slide rod is coaxially arranged between the two second ear plates, and the sliding block away from the screw is slidingly sleeved on the slide rod.

[0018] The lower end of the filter plate is attached to the peripheral wall of the third rotating roller, and the upper end of the filter plate is attached to the peripheral wall of the first rotating roller or the second rotating roller.

[0019] The first rotating roller and the second rotating roller are provided with a plurality of first ring grooves which are uniformly distributed and coaxial with the first rotating roller or the second rotating roller.

[0020] The lower end of the filter plate is fixed with a plurality of second ring sleeves which are uniformly distributed and staggered, and the third rotating roller is provided with a plurality of second ring grooves which are uniformly distributed on the peripheral wall, and the number of the second ring grooves on the third rotating roller is equal to that of the second ring sleeves on the two filter plates and corresponds to the second ring sleeves one by one, and the second ring sleeves are rotatably sleeved on the corresponding second ring grooves.

[0021] The nouns, conjunctions or adjectives involved in the above technical solutions are explained as follows:

[0022] Fixed connection: refers to the process of connecting two separate profiles or parts into a complex part or component by using fasteners such as screws, bolts and rivets.

[0023] Sliding connection: two objects are in contact but not fixed, and they can slide relative to each other.

[0024] The beneficial effects of the utility model are as follows:

[0025] 1. When the gold plating solution needs to be filtered, the gold plating solution in the gold plating tank is discharged from the drain, and then the discharged gold plating solution is collected and re-transported into the upper ends of the two filter plates, and the two filter plates are inclined and placed, which not only increases the effective area of filtration, but also effectively reduces the area of the filter plate being blocked and improves the filtration efficiency, and the two filter plates can be driven to approach each other in the non-filtering state.

[0026] Meanwhile, the second rotating roller can be pushed to approach or move away from the first rotating roller, thereby controlling the size of the included angle between the two filter plates, and the angle can be flexibly adjusted according to different filtering requirements to adapt to different types or concentrations of impurities, thereby enhancing the flexibility and applicability of the filtering system.

[0027] 2. The first ear plate, screw rod, rotating motor and sliding block are cooperatively arranged to automatically control the second rotating roller to approach or move away from the first rotating roller, thereby adjusting the size of the included angle between the two filter plates. BRIEF DESCRIPTION OF DRAWINGS

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Fig. 1 This is a schematic diagram of the overall structure of this utility model;

[0030] Fig. 2 This is a schematic diagram of a portion of the screw section of this utility model;

[0031] Fig. 3 This is a partial structural diagram of the third roller of this utility model. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0033] This combination Figs. 1-3 This document describes an embodiment of a continuous filter cartridge for PCB board gold plating solution. Specifically, the continuous filter cartridge for PCB board gold plating solution is constructed as a split structure, comprising a gold plating tank 100, a first rotating roller 200, a second rotating roller 201, a third rotating roller 300, filter plates 400, and a slider 500. When filtration of the gold plating solution is required, the gold plating solution in the gold plating tank 100 is discharged from the drain outlet 101, and then the discharged gold plating solution is collected and re-transported into the upper part of the two filter plates 400. The gold plating solution is filtered by the two filter plates 400 on the third rotating roller 300. Both filter plates 400 are placed at an angle, which not only increases the effective filtration area, but also allows the filter residue on the filter plates 400 to converge towards the lower area between the two filter plates 400 under the action of gravity during the filtration process, effectively reducing the area of ​​the filter plates 400 that is blocked and improving the filtration efficiency. In the non-filtration state, the two filter plates 400 can be driven to move closer to each other and contract.

[0034] At the same time, the second roller 201 can be pushed closer to or further away from the first roller 200, thereby controlling the angle between the two filter plates 400. The angle can be flexibly adjusted according to different filtration requirements to adapt to different types or concentrations of impurities, thereby enhancing the flexibility and applicability of the filtration system.

[0035] Please refer to Figs. 1-3 A continuous filter cartridge for PCB board gold plating solution, comprising a gold plating tank 100;

[0036] The gold plating tank 100 is in the shape of an open-top rectangular shell, and a drainage opening 101 is formed at the lower end of the gold plating tank 100;

[0037] The first rotating roller 200, the second rotating roller 201 and the third rotating roller 300 are symmetrically arranged in the gold plating tank 100. The first rotating roller 200 and the second rotating roller 201 are at a relative position height, the center axis height of the third rotating roller 300 is lower than that of the first rotating roller 200, and the center axis of the third rotating roller 300 is located in the vertical symmetry plane of the first rotating roller 200 and the second rotating roller 201. The two ends of the first rotating roller 200, the second rotating roller 201 and the third rotating roller 300 are attached to the inner side wall of the gold plating tank 100. The first rotating roller 200 is fixed to the inner side wall of the gold plating tank 100, and the second rotating roller 201 and the third rotating roller 300 are slidingly connected to the inner wall of the gold plating tank 100;

[0038] A pair of symmetrically arranged filter plates 400 are rotatably connected to the circumferential wall of the third rotating roller 300. The two filter plates 400 are symmetrically arranged about the vertical plane in which the center axis of the third rotating roller 300 is located. The upper ends of the two filter plates 400 are rotatably connected to the circumferential wall of the first rotating roller 200 and the second rotating roller 201, respectively. The two sides of the filter plates 400 along the axis direction of the first rotating roller 200 are slidingly attached to the two side walls of the gold plating tank 100;

[0039] Sliding blocks 500 are fixedly connected to the two ends of the second rotating roller 201, and the sliding blocks 500 are slidingly connected to the upper end of the gold plating tank 100;

[0040] It should be noted that the drainage opening 101 is provided with a switch valve;

[0041] When gold plating, the switch valve is closed to block the drainage opening 101, and the gold plating tank 100 is filled with gold plating liquid. When the gold plating liquid needs to be filtered, the switch valve is opened, the gold plating liquid in the gold plating tank 100 is discharged from the drainage opening 101, and then the discharged gold plating liquid is collected and re-delivered to the upper ends of the two filter plates 400. The two filter plates 400 on the third rotating roller 300 filter the gold plating liquid. The two filter plates 400 are inclined and placed, which not only increases the effective area of filtration, but also effectively reduces the area of the filter plates 400 being blocked and improves the filtration efficiency by gathering the filter residue on the filter plates 400 to the lower end area between the two filter plates 400 under the action of gravity during the filtration process. When not filtering, the two filter plates 400 can be driven to approach each other and shrink;

[0042] At the same time, the second rotating roller 201 can be pushed to approach or move away from the first rotating roller 200, thereby controlling the size of the included angle between the two filter plates 400. The angle can be flexibly adjusted according to different filtering requirements to adapt to different types or concentrations of impurities, thereby enhancing the flexibility and applicability of the filtering system.

[0043] In order to facilitate the drive second roller 201 close to or away from the first roller 200, the gold-plated tank 100 outside is provided with horizontally placed screw rod 600, screw rod 600 and first roller 200 is vertically placed, any sliding block 500 is threaded on the screw rod 600, the screw rod 600 both ends are rotatably provided with first ear plate 601, first ear plate 601 is fixed with the outer wall of gold-plated tank 100; when rotating screw rod 600, screw rod 600 drives corresponding sliding block 500 to screw transmission, sliding block 500 drives second roller 201 to move close to or away from the first roller 200.

[0044] In order to facilitate automatic control of the rotation of screw rod 600, any first ear plate 601 is fixedly installed with rotating motor 602, and the output end of rotating motor 602 is connected with one end of screw rod 600; by starting rotating motor 602, the rotation of screw rod 600 is controlled, and by controlling the rotation direction of the output end of rotating motor 602, the approach or away of second roller 201 from first roller 200 is controlled.

[0045] In order to improve the guiding property of second roller 201 in the moving process, a pair of symmetrical second ear plates are fixed on the outer wall of gold-plated tank 100, a slide rod 700 is fixed between the two second ear plates and is coaxially placed with screw rod 600, and the sliding block 500 away from the end of screw rod 600 is slidably sleeved on the slide rod 700; by the arrangement of slide rod 700, the sliding block 500 away from the end of screw rod 600 is supported, and the guiding property of second roller 201 in the moving process is improved.

[0046] The lower end of the filter plate 400 is in contact with the peripheral wall of the third roller 300, and the upper end of the filter plate 400 is in contact with the peripheral wall of the first roller 200 or the second roller 201; to prevent the gold-plating solution from overflowing directly from the gap between the filter plate 400 and the third roller 300 during filtration.

[0047] A plurality of first ring grooves 202 are evenly distributed on the first roller 200 and the second roller 201, the first ring grooves 202 are coaxially arranged with the first roller 200 or the second roller 201, a plurality of first ring sleeves 401 are evenly distributed on the upper end of the filter plate 400, the first ring sleeves 401 on the upper end of the filter plate 400 correspond to the first ring grooves 202 on the upper end of the first roller 200 or the second roller 201 on the corresponding side, and the first ring sleeves 401 are rotatably sleeved on the corresponding first ring grooves 202; in order to realize the rotary connection of the filter plate 400 and the first roller 200 or the second roller 201.

[0048] The lower end of the filter plate 400 is fixed with a plurality of second ring sleeves 402 which are uniformly distributed, and the second ring sleeves 402 at the lower end of the two filter plates 400 are in a staggered arrangement, a plurality of second ring grooves 301 are arranged on the circumferential wall of the third rotating roller 300, the second ring grooves 301 on the third rotating roller 300 are equal in number to the second ring sleeves 402 on the two filter plates 400 and one-to-one corresponding, and the second ring sleeves 402 are rotatably sleeved on the corresponding second ring grooves 301, so as to realize the rotary connection of the filter plate 400 and the third rotating roller 300.

[0049] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0050] The basic principles, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application.

Claims

1. A continuous filter cartridge for PCB board gold plating solution, comprising a gold plating tank (100), characterized in that: The gold plating tank (100) is a rectangular shell with an opening at the top, and a drain outlet (101) is provided at the bottom of the gold plating tank (100). The gold plating tank (100) is provided with a first rotating roller (200), a second rotating roller (201) and a third rotating roller (300) symmetrically placed inside. The first rotating roller (200) and the second rotating roller (201) are at a relative height. The height of the central axis of the third rotating roller (300) is lower than the height of the central axis of the first rotating roller (200). The central axis of the third rotating roller (300) is located in the vertical symmetrical plane of the first rotating roller (200) and the second rotating roller (201). Both ends of the first rotating roller (200), the second rotating roller (201) and the third rotating roller (300) are in contact with the inner wall of the gold plating tank (100). The first rotating roller (200) is fixed to the inner wall of the gold plating tank (100). The second rotating roller (201) and the third rotating roller (300) are slidably connected to the inner wall of the gold plating tank (100). A pair of symmetrically placed filter plates (400) are rotatably hinged to the side wall of the third roller (300). The two filter plates (400) are symmetrically placed about the vertical plane containing the central axis of the third roller (300). The upper ends of the two filter plates (400) are rotatably hinged to the side walls of the first roller (200) and the second roller (201), respectively. The two sides of the filter plates (400) along the axial direction of the first roller (200) are slidably attached to the side walls of the gold plating tank (100). The second roller (201) has sliders (500) fixedly connected to both ends, and the sliders (500) are slidably engaged with the upper end of the gold plating tank (100).

2. The continuous filter cartridge for PCB board gold plating solution according to claim 1, characterized in that, A horizontally placed screw (600) is provided on the outside of the gold plating tank (100). The screw (600) is placed perpendicular to the first rotating roller (200). Any slider (500) is threaded onto the screw (600). Both ends of the screw (600) are rotatably fitted with first ear plates (601). The first ear plates (601) are fixed to the outer wall of the gold plating tank (100).

3. The continuous filter cartridge for PCB board gold plating solution according to claim 2, characterized in that, A rotating motor (602) is fixedly installed on any of the first ear plates (601), and the output end of the rotating motor (602) is connected to one end of the screw (600).

4. The continuous filter cartridge for PCB board gold plating solution according to claim 3, characterized in that, A pair of symmetrically placed second ear plates are fixed on the outer wall of the gold plating tank (100). A slide rod (700) is fixed between the two second ear plates and is placed in the same direction as the screw (600). The slider (500) at the end away from the screw (600) is slidably sleeved on the slide rod (700).

5. The continuous filter cartridge for PCB board gold plating solution according to claim 4, characterized in that, The lower end of the filter plate (400) is in contact with the peripheral wall of the third roller (300), and the upper end of the filter plate (400) is in contact with the peripheral wall of the first roller (200) or the second roller (201).

6. The continuous filter cartridge for PCB board gold plating solution according to claim 5, characterized in that, The first roller (200) and the second roller (201) are each provided with a plurality of evenly distributed first annular grooves (202). The first annular grooves (202) are all placed coaxially with the first roller (200) or the second roller (201). The upper end of the filter plate (400) is fixed with a plurality of evenly distributed first annular sleeves (401). The first annular sleeves (401) on the filter plate (400) correspond one-to-one with the first annular grooves (202) on the upper end of the first roller (200) or the second roller (201) on the corresponding side. The first annular sleeves (401) are all rotatably sleeved on the corresponding first annular grooves (202).

7. The continuous filter cartridge for PCB board gold plating solution according to claim 6, characterized in that, Each filter plate (400) has a plurality of evenly distributed second ring sleeves (402) fixed at its lower end, and the second ring sleeves (402) at the lower ends of the two filter plates (400) are placed in an alternating manner. The third rotating roller (300) has a plurality of evenly distributed second ring grooves (301) on its peripheral wall. The number of second ring grooves (301) on the third rotating roller (300) is equal to the number of second ring sleeves (402) on the two filter plates (400) and they correspond one to one. The second ring sleeves (402) are all rotated and fitted onto the corresponding second ring grooves (301).

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