Side suction type dross collecting device for plating bath

Abstract

The utility model relates to plating bath side suction type dross collecting device belongs to the technical field of electroplating equipment. The plating bath side suction type dross collecting device, including deflector and transfusion pump, the liquid inlet end of transfusion pump is installed with the detachable filter mechanism that is butt joint with deflector, the detachable filter mechanism includes detachable subassembly and controller, the inside embedded installation of detachable subassembly has a plurality of filter screen that is evenly distributed up and down, and the aperture specification of a plurality of filter screen is reduced gradually from top to bottom, and the top and bottom both ends of detachable subassembly all are fixedly connected with swivel joint. In this plating bath side suction type dross collecting device, the differential pressure sensor in controller real -time monitoring the pressure difference change between liquid inlet pipe and drain pipe, when the pressure difference reaches the set value, automatically starts the electric rotary ware drive detachable subassembly rotation, utilizes centrifugal 1 force effectively to remove the dross that accumulated on filter screen, thereby prevents filter screen blockage and filtration pressure difference sharp rise, ensures the continuous stable operation of dross collecting device.

Description

Technical Field

[0001] This utility model relates to the field of electroplating equipment technology, and in particular to a side-suction scum collection device for plating baths. Background Technology

[0002] The plating bath is the core reaction vessel in the electroplating process, containing plating solutions containing metal ions. A side-suction scum collection device, a key auxiliary equipment, is installed on the side wall of the bath and continuously removes scum from the surface using negative pressure suction. This device significantly improves plating quality, reduces abnormal additive consumption, and, due to its space-saving design and efficient, directional collection capabilities, has become an important guarantee for modern precision electroplating production lines.

[0003] However, the current side-suction scum collection device that uses multi-stage filter screens to filter plating solutions faces a prominent problem in actual operation: the filter element is easily clogged by impurities, leading to a sharp increase in the filtration pressure difference, which affects the continuity and stability of its operation. Utility Model Content

[0004] Therefore, it is necessary to adopt a side-suction scum collection device with multi-stage filters, as the filter element is prone to clogging, which leads to an increase in system pressure difference and thus affects the continuous and stable operation of the equipment. Therefore, a side-suction scum collection device for plating tank is provided.

[0005] A side-suction scum collection device for a plating tank includes a guide plate and a pump, wherein the inlet end of the pump is equipped with a detachable filter mechanism that is connected to the guide plate. The detachable filtration mechanism includes a detachable component and a controller. Multiple uniformly distributed filter screens are embedded inside the detachable component, with the pore size decreasing sequentially from top to bottom. Rotary joints are fixedly connected to both the top and bottom ends of the detachable component. An inlet pipe and an outlet pipe are fixedly connected to the opposite ends of the two rotary joints, respectively. The inlet end of the inlet pipe is connected to a guide plate, and the outlet end of the outlet pipe is fixedly connected to and communicates with the inlet end of the infusion pump. A differential pressure sensor is installed inside the controller, with its two detection ends penetrating into the inlet and outlet pipes, respectively. An electric rotator, fixedly connected to the detachable component, is fixedly connected to the outer surface of the outlet pipe.

[0006] In one embodiment, the detachable component includes two mounting cylinders and at least two carrier cylinders. The two mounting cylinders are respectively fixedly connected to the two adjacent ends of the two rotary joints. The multiple carrier cylinders are stacked vertically in sequence and snapped between the two mounting cylinders. The multiple filter screens are respectively embedded in the interior of the corresponding carrier cylinders. Mounting sleeves are fixedly connected to the outer arc surfaces of the two mounting cylinders and the multiple carrier cylinders. A smooth rod bolt is inserted into the top of the upper mounting sleeve. The shank of the smooth rod bolt passes through the multiple mounting sleeves below in sequence. The threaded part at the bottom of the smooth rod bolt is threaded with a nut that contacts the bottom of the lower mounting sleeve.

[0007] In one embodiment, the number of the smooth rod bolts and nuts is four, the number of the mounting sleeves fixedly connected to the outer arc surface of the same mounting cylinder is four, and the number of the mounting sleeves fixedly connected to the outer arc surface of the same bearing cylinder is four.

[0008] In one embodiment, the bottom of the upper mounting cylinder and the bottom of the plurality of bearing cylinders are provided with positioning ring grooves, and the top of the lower mounting cylinder and the top of the plurality of bearing cylinders are fixedly connected with hard sealing rings that engage with the positioning ring grooves.

[0009] In one embodiment, the filter screen is cone-shaped with the tip of the filter screen pointing upwards.

[0010] In one embodiment, a reinforcing mesh is fixedly connected inside each of the plurality of bearing cylinders, and the filter screen is fixedly connected to the top surface of the reinforcing mesh.

[0011] In one embodiment, the inlet end of the inlet pipe is fixedly connected to and communicates with an inlet hopper that docks with the guide plate, and the vertical cross-sectional shape of the inner side of the inlet hopper is a lateral isosceles trapezoidal shape.

[0012] In one embodiment, the liquid inlet hopper and the liquid inlet pipe are fixedly connected and connected by a high-pressure resistant hose.

[0013] Beneficial effects 1. In this side-suction scum collection device for plating bath, the detachable filter mechanism monitors the pressure difference between the inlet pipe and the outlet pipe in real time through the differential pressure sensor in the controller. When the pressure difference reaches the set value, the electric rotator is automatically started to drive the detachable component to rotate. The centrifugal force is used to effectively remove the scum accumulated on the filter screen, thereby preventing the filter screen from clogging and the filtration pressure difference from rising sharply, and ensuring the continuous and stable operation of the scum collection device.

[0014] 2. In this side-suction scum collection device for plating tank, the detachable components of the detachable filter mechanism adopt a modular design and are quickly assembled and disassembled with the help of mounting sleeves, smooth rod bolts and nuts, making the maintenance and cleaning of the filter screen simple and efficient, significantly reducing downtime and maintenance costs caused by clogging, and improving the overall reliability and ease of operation of the device. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in 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, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of a partial structure in this utility model; Figure 3 This is a cross-sectional schematic diagram of a partial structure in this utility model; Figure 4 for Figure 3 Enlarged view of point A in the middle; Figure 5 This is a partial exploded view of the detachable filter mechanism in this utility model.

[0017] Figure label: 100. Flow guide plate; 200. Infusion pump; 300. Detachable filter mechanism; 310. Detachable component; 311. Mounting cylinder; 312. Bearing cylinder; 313. Mounting sleeve; 314. Smooth rod bolt; 315. Nut; 316. Positioning ring groove; 317. Hard sealing ring; 318. Reinforcing mesh; 320. Filter screen; 330. Rotary joint; 340. Inlet pipe; 350. Drain pipe; 360. Controller; 370. Differential pressure sensor; 380. Electric rotator; 390. Inlet hopper; 3100. High-pressure resistant hose. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0019] The following is combined with Figures 1-5 This invention describes a side-suction scum collection device for a plating bath.

[0020] In one embodiment, a side-suction scum collection device for a plating tank includes a guide plate 100 and a pump 200. The guide plate 100 is inclinedly and fixedly connected to the inner wall of the plating tank. An installation platform is fixedly connected to the bottom of the plating tank. The pump 200 is fixedly connected to the top of the installation platform. A detachable filter mechanism 300 that docks with the guide plate 100 is installed at the inlet end of the pump 200.

[0021] like Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the detachable filtration mechanism 300 includes a detachable component 310 and a controller 360. Multiple filter screens 320 are evenly distributed vertically inside the detachable component 310. The pore size of the multiple filter screens 320 decreases sequentially from top to bottom. Rotary joints 330 are fixedly connected to both the top and bottom ends of the detachable component 310. The opposite ends of the two rotary joints 330 are respectively fixedly connected to an inlet pipe 340 and an outlet pipe 350. The inlet end of the inlet pipe 340 is connected to the guide plate 100. The outlet end of the outlet pipe 350 is fixedly connected to and communicates with the inlet end of the infusion pump 200. A differential pressure sensor 370 is installed inside the controller 360. The two detection ends of the differential pressure sensor 370 pass through the interior of the inlet pipe 340 and the outlet pipe 350, respectively. An electric rotary device 380, which is fixedly connected to the detachable component 310, is fixedly connected to the outer surface of the outlet pipe 350.

[0022] The electric rotator 380 includes a servo motor fixedly connected to the outer surface of the drain pipe 350. The end of the output shaft of the servo motor is fixedly connected to a drive gear, and one side of the drive gear is meshed with a driven gear fixedly connected to the outer arc surface of the mounting cylinder 311 on the lower side.

[0023] Preferably, the inlet end of the liquid inlet pipe 340 is fixedly connected to and communicates with an inlet hopper 390 that is mated to the guide plate 100. The vertical cross-sectional shape of the inner side of the inlet hopper 390 is a side isosceles trapezoidal shape, and the inlet end of the inlet hopper 390 extends through to the inner wall of the plating tank. A high-pressure resistant hose 3100 is fixedly connected and communicates between the inlet hopper 390 and the liquid inlet pipe 340.

[0024] like Figure 3 , Figure 4 and Figure 5As shown, the detachable component 310 includes two mounting cylinders 311 and at least two carrier cylinders 312. The two mounting cylinders 311 are fixedly connected to the two adjacent ends of the two rotary joints 330. The multiple carrier cylinders 312 are stacked vertically in sequence and snapped between the two mounting cylinders 311. Multiple filter screens 320 are embedded in the interior of the corresponding carrier cylinders 312. The outer arc surfaces of the two mounting cylinders 311 and the multiple carrier cylinders 312 are fixedly connected to mounting sleeves 313. A smooth rod bolt 314 is inserted into the top of the upper mounting sleeve 313. The rod of the smooth rod bolt 314 passes through the multiple mounting sleeves 313 below in sequence. The threaded part at the bottom of the smooth rod bolt 314 is threadedly connected to a nut 315 that contacts the bottom of the lower mounting sleeve 313.

[0025] Preferably, there are four bolts 314 and four nuts 315, four mounting sleeves 313 fixedly connected to the outer arc surface of the same mounting cylinder 311, and four mounting sleeves 313 fixedly connected to the outer arc surface of the same bearing cylinder 312. Positioning ring grooves 316 are provided at the bottom of the upper mounting cylinder 311 and the bottoms of the multiple bearing cylinders 312, and hard sealing rings 317 that engage with the positioning ring grooves 316 are fixedly connected to the top of the lower mounting cylinder 311 and the tops of the multiple bearing cylinders 312.

[0026] Preferably, the filter screen 320 is cone-shaped with its tip pointing upwards; a reinforcing mesh 318 is fixedly connected inside each of the multiple support cylinders 312, and the filter screen 320 is fixedly connected to the top surface of the reinforcing mesh 318.

[0027] Working principle: When the device is running, the guide plate 100 on one side of the plating tank guides the scum on the surface of the liquid to the inlet hopper 390. The plating solution containing scum then flows through the high-pressure resistant hose 3100 into the inlet pipe 340. The liquid enters the filter unit, which is assembled from the mounting cylinder 311, the bearing cylinder 312, the filter screen 320, the mounting sleeve 313, the smooth rod bolt 314 and the nut 315, through the upper rotary joint 330. It then flows from top to bottom through the cone-shaped filter screens 320 with successively smaller inner diameters of the bearing cylinders 312. The scum is intercepted step by step. The clean plating solution after filtration enters the drain pipe 350 through the lower mounting cylinder 311 and the lower rotary joint 330, and is finally pumped back to the plating tank by the delivery pump 200. During the scum collection process, the differential pressure sensor 370 inside the controller 360 continuously monitors the pipeline pressure difference. When the pressure difference reaches the set value, the controller 360 automatically starts the servo motor of the electric rotator 380, which drives the entire filtration unit consisting of the mounting cylinder 311, the bearing cylinder 312, and the filter screen 320 to rotate through the drive gear and driven gear. The centrifugal force is used to throw the impurities onto the inner wall of the bearing cylinder 312. When a thorough cleaning is required, the operator can remove the smooth bolts 314 and nuts 315 connecting each mounting sleeve 313, disassemble the mounting cylinder 311 and the bearing cylinder 312, and thoroughly clean or replace the filter screen 320 and each cylinder.

[0028] It should be noted that the actual model of the infusion pump 200 is the Grundfos SE1-40 mechanical seal centrifugal pump. The core structure of this pump uses a chemically corrosion-resistant stainless steel pump casing and impeller, and is equipped with a cartridge mechanical seal to prevent leakage. Its working principle utilizes the centrifugal force generated by the high-speed rotating impeller to create negative pressure at the pump inlet and establish pressure at the outlet, achieving continuous liquid delivery. In use, the inlet of the infusion pump 200 is connected to the detachable filter mechanism 300 via the drain pipe 350, and its outlet returns to the plating bath through a pipeline. After the device is started, the stable suction force provided by the infusion pump 200 is the power source driving the plating bath containing scum through the entire filtration system.

[0029] The differential pressure sensor 370 is model number Endress+Hauser Deltabar S PMD75. At its core is a metal piezoresistive sensing element, with its two ends connected to the internal cavities of the inlet pipe 340 and outlet pipe 350 via pressure-sensing tubes. Its working principle is to directly measure the fluid pressure difference between the upstream and downstream of the filter unit and accurately convert this physical quantity difference into a linear 4-20mA standard electrical signal. In use, the differential pressure sensor 370 continuously transmits the monitored real-time differential pressure signal to the controller 360. As the filter screen 320 gradually becomes clogged due to trapped scum, this differential pressure value steadily increases, providing direct data for the system to determine the operating status of the filter unit.

[0030] The physical implementation of Controller 360 is based on the Siemens S7-1200 series Programmable Logic Controller (PLC). The core hardware of Controller 360 includes a central processing unit (CPU) and digital and analog input / output modules. Its principle involves using an internally programmed user loop to process input signals from peripheral devices such as the differential pressure sensor 370, and driving actuators such as the electric rotary actuator 380 according to preset logic. In use, Controller 360 continuously receives signals from the differential pressure sensor 370; when the differential pressure reaches a set upper limit, Controller 360 immediately sends a start command to the servo motor of the electric rotary actuator 380, driving the filter unit to rotate for automatic cleaning; if the differential pressure does not recover, an alarm is triggered, prompting manual cleaning.

[0031] The servo motor, model number Panasonic Minas A6 series AC servo motor, is a common power device for driving the rotation of filter units. Its core structure includes a high-precision encoder, a rare-earth permanent magnet rotor, and a low-cogging torque stator. Its working principle involves receiving pulse or analog commands from a compatible servo driver and precisely controlling the motor's output torque, speed, and rotation angle through closed-loop control. In use, when the controller 360 issues a cleaning command, the servo motor drives the driven gear fixed to the filter unit via the drive gear on its output shaft, thereby driving the entire detachable assembly 310 to rotate smoothly and controllably, using centrifugal force to dislodge the floating debris adhering to the filter screen 320.

[0032] The actual model of the high-pressure resistant hose 3100 is a wire-clamped steam hose from the Xianhe brand. The wire-clamped steam hose consists of the following layers from the inside out: Inner rubber layer: made of high-temperature resistant synthetic rubber, directly in contact with the medium, serving a sealing function; Core reinforcement layer: composed of multiple layers of high-strength synthetic fiber threads or canvas tightly bonded together through weaving or winding processes, providing a pressure-bearing skeleton; Outer rubber layer: using a high-strength rubber structure and a special bonding process to ensure a tight bond between each layer. When the user needs to lift the upper mounting sleeve 311 to remove the lower support sleeve 312, first remove the nut 315. Then, the user simply lifts the inlet pipe 340, which causes the high-pressure resistant hose 3100 to bend upwards. At this time, the inlet pipe 340 moves the upper mounting sleeve 311 upwards, giving the user sufficient space to remove the support sleeve 312 for maintenance.

[0033] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A side-suction scum collection device for a plating bath, comprising a guide plate (100) and a pump (200), characterized in that, The infusion pump (200) is equipped with a detachable filter mechanism (300) that docks with the guide plate (100) at the inlet end. The detachable filtration mechanism (300) includes a detachable component (310) and a controller (360). Multiple filter screens (320) are embedded inside the detachable component (310) and are evenly distributed vertically. The pore size of the multiple filter screens (320) decreases sequentially from top to bottom. Rotary joints (330) are fixedly connected to both the top and bottom ends of the detachable component (310). An inlet pipe (340) and a drain pipe (350) are fixedly connected to the opposite ends of two rotary joints (330), respectively. The inlet end of the inlet pipe (340) is connected to the guide plate (100), and the outlet end of the drain pipe (350) is fixedly connected to and connected to the inlet end of the infusion pump (200). A differential pressure sensor (370) is installed inside the controller (360). The two detection ends of the differential pressure sensor (370) pass through the interior of the inlet pipe (340) and the drain pipe (350) respectively. An electric rotary device (380) is fixedly connected to the outer surface of the drain pipe (350) and fixedly connected to the detachable component (310).

2. The side-suction scum collection device for plating baths according to claim 1, characterized in that, The detachable component (310) includes two mounting cylinders (311) and at least two carrier cylinders (312). The two mounting cylinders (311) are fixedly connected to the two adjacent ends of the two rotary joints (330). The multiple carrier cylinders (312) are stacked vertically in sequence and snapped between the two mounting cylinders (311). The multiple filters (320) are embedded in the interior of the corresponding carrier cylinders (312). The outer arc surfaces of the two mounting cylinders (311) and the multiple carrier cylinders (312) are fixedly connected with mounting sleeves (313). The top of the upper mounting sleeve (313) is inserted with a smooth rod bolt (314). The rod of the smooth rod bolt (314) passes through the multiple mounting sleeves (313) below in sequence. The threaded part at the bottom of the smooth rod bolt (314) is threaded with a nut (315) that contacts the bottom of the lower mounting sleeve (313).

3. The side-suction scum collection device for plating baths according to claim 2, characterized in that, The number of the bare rod bolts (314) and nuts (315) are four, the number of the mounting sleeves (313) fixedly connected to the outer arc surface of the same mounting cylinder (311) is four, and the number of the mounting sleeves (313) fixedly connected to the outer arc surface of the same bearing cylinder (312) is four.

4. The side-suction scum collection device for plating baths according to claim 2, characterized in that, The bottom of the upper mounting cylinder (311) and the bottom of the multiple bearing cylinders (312) are provided with positioning ring grooves (316), and the top of the lower mounting cylinder (311) and the top of the multiple bearing cylinders (312) are fixedly connected with hard sealing rings (317) that engage with the positioning ring grooves (316).

5. The side-suction scum collection device for plating baths according to claim 2, characterized in that, The filter screen (320) is cone-shaped with its tip pointing upwards.

6. The side-suction scum collection device for plating baths according to claim 5, characterized in that, Each of the multiple bearing cylinders (312) has a reinforcing mesh (318) fixedly connected inside, and the filter screen (320) is fixedly connected to the top surface of the reinforcing mesh (318).

7. The side-suction scum collection device for plating baths according to claim 1, characterized in that, The inlet end of the inlet pipe (340) is fixedly connected to and communicates with an inlet hopper (390) that is connected to the guide plate (100). The vertical cross-sectional shape of the inner side of the inlet hopper (390) is a side isosceles trapezoid.

8. The side-suction scum collection device for plating baths according to claim 7, characterized in that, The liquid inlet hopper (390) is fixedly connected to the liquid inlet pipe (340) and is connected to a high-pressure resistant hose (3100).

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