Online cleaning device and cleaning method for anode plate used in copper foil electroforming machine

Abstract

The present invention discloses an on-line cleaning device and a cleaning method for an anode plate used in a raw foil machine, comprising: a plurality of cleaning blocks, each cleaning block including a cavity located in the upper layer and a brush body located in the lower layer; a conduit, the conduit being connected between adjacent cavities to connect the plurality of cleaning blocks in sequence to form a cleaning belt; an air inlet pipe, the air inlet pipe being connected to the cavity at one end of the cleaning belt; an air outlet pipe, the air outlet pipe being connected to the cavity at the other end of the cleaning belt; a transition pipe, the transition pipe being connected to the conduit in the middle, and an air bag being connected to the bottom of the transition pipe. The beneficial effect of the present invention is that the cleaning of the anode plate can be completed on-line without removing the anode plate from the raw foil machine, the operation is convenient, it can be used immediately as needed, no chemical agents need to be configured, and the deposition of electrolytic impurities on the surface of the anode plate, which may cause the anode plate to fail, can be avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of copper foil making machines, and particularly to an on-line cleaning device and a cleaning method for anode plates used in copper foil making machines. Background Art

[0002] As the main production equipment for copper foil, the anode plate of the copper foil making machine is installed on the anode tank and used as an anode in the electrolytic cell. At present, there are mainly two forms of anode plates in the market, namely, the inlaid type and the back-pull type. The anode plate is not a truly insoluble anode. Due to different specific use environments, the service life varies greatly. Generally, there are other impurity ions in the electrolyte, and impurities will be formed and deposited on the surface of the anode plate during the electrolysis process, affecting the uniform conductivity of the anode plate surface, thereby accelerating the failure of the anode plate. In view of the fact that the service life of the current anode plate is generally lower than the designed service life, it is necessary to design a maintenance method for the anode plate used in the copper foil making machine.

[0003] Chinese Utility Model Patent Publication No. CN207918974U discloses a structure of an anode plate for a copper foil making machine for improving the adjustment of the thickness uniformity of copper foil. It includes multiple long-strip titanium anode plates arranged in a splicing manner. The lower surface of each long-strip titanium anode plate is uniformly provided with a plurality of conductive bolts along the length direction. Among the multiple long-strip titanium anode plates, at least one long-strip titanium anode plate is a copper foil thickness uniformity adjustment plate. The copper foil thickness uniformity adjustment plate is composed of multiple short-strip titanium anode plates spliced along the length direction. Each short-strip titanium anode plate is provided with a conductive bolt on the lower surface, and each short-strip titanium anode plate is connected to an independent DC power supply. The input current of each short-strip titanium anode plate is adjusted by its respective independent DC power supply.

[0004] Chinese Invention Patent Authorization Publication No. CN111349961B discloses a method for cleaning and removing precious metals from waste titanium anode plates used in copper foil making machines, including the following steps: S1, first, rinse the surface of the waste anode plate to be cleaned with distilled water, and let it dry naturally after rinsing; S2, put the rinsed anode plate into an oxidation furnace for sintering, and let it cool naturally to room temperature after leaving the furnace; S3, soak the sintered old anode plate in HCL and H2O2 water; S4, after soaking, take out the anode plate and rinse it with a high-pressure water gun to remove the surface lead oxide impurities; S5, the rinsed anode plate enters a drying furnace for drying, and wait for precious metals to be removed after drying; S6, prepare a 50% potassium hydroxide solution plus 30% sodium chloride NaCl. Although this method can clean the anode plate, it is necessary to remove the anode plate from the copper foil making machine, and then reinstall it after cleaning, which is time-consuming and laborious. Summary of the Invention

[0005] The technical problem to be solved by the present invention is that the existing cleaning of the anode plate can only be carried out independently after removal, which is time-consuming and laborious. Therefore, an on-line cleaning device and a cleaning method for the anode plate of a copper foil generator are provided.

[0006] The technical solution of the present invention is: an on-line cleaning device for the anode plate of a copper foil generator, including: a plurality of cleaning blocks, each cleaning block includes a cavity located in the upper layer and a brush body located in the lower layer; a conduit, the conduit is connected between adjacent cavities to connect a plurality of cleaning blocks in sequence to form a cleaning belt; an air inlet pipe, the air inlet pipe is connected to the cavity at one end of the cleaning belt; an air outlet pipe, the air outlet pipe is connected to the cavity at the other end of the cleaning belt; a transition pipe, the transition pipe is connected to the conduit in the middle, and an airbag is connected to the bottom of the transition pipe.

[0007] In the above solution, the bottom surface of the brush body is evenly distributed with bristles.

[0008] An improvement of the above solution is that a through hole communicating with the cavity is opened in the brush body.

[0009] A further improvement of the above solution is that a hook portion is provided on the outer side of the brush bodies at both ends of the cleaning belt.

[0010] A further improvement of the above solution is that the hook portion is connected to the outer side of the brush body through an elastic connecting member.

[0011] An on-line cleaning method for the anode plate of a copper foil generator includes the following steps: putting one end of the cleaning belt into the space between the cathode roller and the anode plate from a slot on one side of the copper foil generator, driving the cleaning belt to move forward by the rotation of the cathode roller until it extends out from the space between the cathode roller and the anode plate at a slot on the other side of the copper foil generator, the airbag is located in the bottom slot of the copper foil generator, inflating the air inlet pipe, closing the air outlet pipe, the air flow flows in the cavity and the conduit, the airbag expands to block the bottom slot of the copper foil generator, pulling one end of the cleaning belt to move horizontally in the copper foil generator, using the brush body to brush the anode plate, after the brushing is completed, opening the air outlet pipe, discharging the gas in the airbag, and taking out the cleaning belt.

[0012] The beneficial effect of the present invention is that the cleaning of the anode plate can be completed on-line without removing the anode plate from the copper foil generator, the operation is convenient, it can be used immediately, there is no need to configure chemical agents, and it can avoid the deposition of electrolytic impurities on the surface of the anode plate, resulting in the failure of the anode plate. Description of the Drawings

[0013] Figure 1 is a schematic diagram of the cleaning belt of the present invention;

[0014] Figure 2 is a schematic diagram of the use state of the cleaning belt of the present invention;

[0015] Figure 3 is Figure 1 a schematic diagram of the cleaning block in

[0016] In the figure, 1 is the cavity, 2 is the brush body, 3 is the conduit, 4 is the intake pipe, 5 is the exhaust pipe, 6 is the transition pipe, 7 is the airbag, 8 is the through hole, 9 is the hook part, and 10 is the nut. Embodiment

[0017] Combined with the embodiments below, the technical solutions in the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the protection scope of the present invention.

[0018] The radian of the anode plate needs to be shaped to be consistent with the radian of the anode tank. During installation, ensure that the anode plate fits closely with the anode tank in height. The anode plate nuts are vertically welded, and the welding scars at the root of the nuts are removed after welding. Through radian shaping, the fitting degree between the anode plate and the anode tank is improved, avoiding the generation of gaps due to poor fitting degree. The plating solution seeps through the gaps and undergoes a high-temperature electrolysis reaction, resulting in poor conductivity at this part, accelerating the consumption and shedding of the coating. The surface of the anode plate is plated with iridium, and the coating thickness is 3 - 6 microns. This is the optimal thickness to ensure that the coating thickness of the anode plate reaches the designed service life. The iridium oxide content per unit area of 25 - 30 grams is more appropriate. The anode plate needs to be regularly maintained and cleaned according to the usage time, and the surface of the anode is brushed to clean the lead-containing deposits on the surface of the anode plate.

[0019] The installation of the anode plate is first pre-tightened from the middle to the outside and then locked. After all the nuts are tightened, use pure water to detect whether there is liquid leakage at the bottom of the anode. It is necessary to ensure that the back of the anode plate fits completely on the base, which is beneficial to the conductivity of the anode plate and makes the conduction more uniform. After ensuring no liquid leakage, the electrolyte can be injected and power can be supplied and the machine can be started, and the tightness needs to be regularly inspected.

[0020] As Figure 1 As shown, the on-line cleaning device for the anode plate of the copper foil making machine includes: a plurality of cleaning blocks, each cleaning block includes a cavity 1 located in the upper layer and a brush body 2 located in the lower layer; a conduit 3, the conduit is connected between adjacent cavities to connect a plurality of cleaning blocks in sequence to form a cleaning belt; an intake pipe 4, the intake pipe is connected to the cavity at one end of the cleaning belt; an exhaust pipe 5, the exhaust pipe is connected to the cavity at the other end of the cleaning belt; a transition pipe 6, the transition pipe is connected to the conduit in the middle, and an airbag 7 is connected to the bottom of the transition pipe.

[0021] The material of the brush body can be a sponge body or a rigid material, and the lower surface is evenly distributed with bristles.

[0022] As a preferred example of the present invention, as Figure 3As shown, a through hole 8 communicating with the cavity is formed in the brush body. When air is input from the air inlet pipe, the flowing air provides negative pressure to the through hole, enabling the brush body to firmly adhere to the surface of the anode plate.

[0023] As an embodiment of the present invention, hook portions 9 are provided on the outer sides of the brush bodies at both ends of the cleaning belt. The hook portions can be lapped on both ends of the copper foil generator. During cleaning, there is no need to hold the cleaning belt by hand, and only need to push the cleaning belt to move inside the copper foil generator.

[0024] To ensure the tightness of the fit between the cleaning block and the anode plate, the hook portion is connected to the outer side of the brush body through an elastic connecting member. The length between the cleaning belt and the two hook portions is less than the distribution length of the anode plate. It is necessary to stretch the elastic connecting member to hang the hook portions on both ends of the copper foil generator. At this time, each cleaning block can closely adhere to the surface of the anode plate.

[0025] An on-line cleaning method for the anode plate of a copper foil generator, as Figure 2 shown, includes the following steps: The copper foil generator operates continuously, the cathode roller rotates, one end of the cleaning belt is placed between the cathode roller and the anode plate from a slot on one side of the copper foil generator, and the rotation of the cathode roller drives the cleaning belt to move forward until it extends between the cathode roller and the anode plate from a slot on the other side of the copper foil generator. The airbag is located in the bottom slot of the copper foil generator. The bottom slot is a long strip-shaped through slot axially provided at the radial center of the arc-shaped bottom plate of the copper foil generator. The air inlet pipe is inflated, the air outlet pipe is closed, the air flow flows in the cavity and the conduit, the airbag expands to block the bottom slot of the copper foil generator, pulls one end of the cleaning belt to make it move horizontally inside the copper foil generator, and the anode plate is brushed by the brush body. After brushing, the air outlet pipe is opened, the gas in the airbag is discharged, and the cleaning belt is taken out.

Claims

1. An on-line cleaning method for an anode plate used in a raw foil machine, characterized in that, Comprising: An on-line cleaning device for the anode plate of a copper foil making machine, the on-line cleaning device for the anode plate of a copper foil making machine comprising: a plurality of cleaning blocks, each cleaning block including a cavity (1) located in the upper layer and a brush body (2) located in the lower layer; a conduit (3), the conduit being connected between adjacent cavities to connect the plurality of cleaning blocks in sequence to form a cleaning belt; an air inlet pipe (4), the air inlet pipe being connected to the cavity at one end of the cleaning belt; an air outlet pipe (5), the air outlet pipe being connected to the cavity at the other end of the cleaning belt; a transition pipe (6), the transition pipe being connected to the conduit in the middle, and an air bag (7) being connected to the bottom of the transition pipe; the bottom surface of the brush body being evenly distributed with bristles; a through hole (8) communicating with the cavity being formed in the brush body; a hook portion (9) being provided on the outer side of the brush body at both ends of the cleaning belt; the cleaning method comprising the following steps: putting one end of the cleaning belt into the space between the cathode roller and the anode plate from a notch on one side of the copper foil making machine, driving the cleaning belt to move forward by the rotation of the cathode roller until it extends out from the space between the cathode roller and the anode plate at a notch on the other side of the copper foil making machine, the air bag being located in the bottom notch of the copper foil making machine, inflating the air inlet pipe, closing the air outlet pipe, allowing the air flow to flow in the cavity and the conduit, the air bag expanding to clamp the bottom notch of the copper foil making machine, pulling one end of the cleaning belt to make it move horizontally in the copper foil making machine, using the brush body to brush the anode plate, after the brushing is completed, opening the air outlet pipe, discharging the gas in the air bag, and taking out the cleaning belt.

2. The on-line cleaning method of the anode plate for the raw foil machine according to claim 1, characterized in that: The hook portion is connected to the outer side of the brush body through an elastic connecting member.

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