KR102665754B1 - Titanium drum with prefabricated coolant waterway - Google Patents

Abstract

The present invention is a titanium drum for manufacturing electrolytic copper thin plates,
An inner drum made of steel bent and molded into a circle, an outer drum formed of titanium into a circle and then assembled by shrink fitting to the outside of the inner drum, side plates installed on both edges of the inner drum, and installed inside the side plate. A cathode drum consisting of a vertical reinforcement plate that maintains and reinforces the shape of the inner drum; A rotating shaft that passes through the center of the side plate and the manual reinforcement plate to rotate the cathode drum; A current supply module consisting of a tab formed on each of the rotating shaft and the inner drum, a connector assembled to the tab, and a wire provided with a connection plate inserted into the connector at both ends to supply the current applied to the rotating shaft to the inner drum. This is achieved by having the following characteristics:

Description

Titanium drum with prefabricated coolant waterway

The present invention relates to a titanium drum equipped with a prefabricated cooling water channel.

More specifically, a titanium drum is composed of an inner drum, an outer drum assembled by shrink fitting to the inner drum, and a rotating shaft for rotating them, and is provided with a prefabricated current supply module for supplying current to each of the rotating shaft and the inner drum. In addition, it relates to a titanium drum equipped with a prefabricated cooling water channel that can mass-produce high-quality electrolytic copper sheets by cooling the heat generated by electrical resistance and transmitted to the external drum.

In addition, the present invention is provided with a current supply module on each of the rotating shaft and the inner drum and a cooling water channel assembled in connection with the current supply module, making it easy to assemble the cooling water channel and obtaining high quality and uniform thickness electrolytic copper thin plate. It relates to a titanium drum equipped with a prefabricated cooling water channel.

In general, electrolytic thin plates are manufactured using a related equipment including a cathode drum and electrodes stored in an electrolyzer at regular intervals along with the cathode drum. Between the insoluble drum-shaped cathode material and the insoluble anode material, metal ions are produced. By carrying out an electrolytic reaction while supplying an electrolyte containing an electrolyte, a thin metal plate is formed by electrolytically depositing a target thickness on the surface of the drum-shaped negative electrode material. Next, the formed thin metal plate is manufactured by peeling from the surface of the drum-shaped negative electrode material.

In other words, the production of electrolytic thin plates involves an electrolytic reaction while flowing an electrolyte solution of iron, copper, chromium, nickel, etc. between a drum-shaped rotating cathode and a lead-based anode arranged oppositely according to the shape of the rotating cathode drum. Copper is deposited on the surface of the rotating cathode drum, and when the precipitated copper is in a foil state, it is continuously peeled off from the rotating cathode drum and wound up.

Recently, the structure of the cathode drum has been improved in various forms in an effort to obtain high-quality electrolytic thin plates.

For example, the surface of the cathode drum is precisely processed to uniform roughness to ensure high surface conductivity and uniform current density, thereby improving the quality of the copper foil that is electrodeposited, deposited, and transferred to the surface of the cathode drum. The manufacturing method (registration patent 10-1781918) is presented.

This manufacturing method includes preparing an inner plate and an outer plate respectively; Inserting a low melting point insert material made of eutectic alloy between the inner plate and the outer skin plate and applying a transition liquid diffusion bonding technique to join the inner plate and the outer skin plate; Forming the inner plate and the outer shell plate into a cylindrical drum shape so that the outer shell plate becomes the upper surface; Forming a cylindrical drum by welding a joint between the inner plate and the outer shell plate; Forming a titanium skin layer by surface modifying the entire surface of the cylindrical drum in the circumferential and longitudinal directions using a growth lamination technique; Primary heat treatment, machining and polishing of the cylindrical drum to which the titanium skin layer is welded in a vacuum inert atmosphere; Removing processing residual stress generated during the machining by performing ultrasonic nano-modification surface treatment on the machined and polished titanium skin layer; It includes the step of performing secondary heat treatment on the cylindrical drum on which the titanium skin layer is formed in a mixed gas atmosphere.

In addition, Domestic Patent Publication No. 10-2348083 (name: cathode drum for electrolytic deposition and method of manufacturing the same), which was previously filed and registered by the applicant, attenuates potential differences and contact defects by simplifying the contact path, and attenuates potential differences and contact defects, and the copper lining, which is one contact point, is The conductivity was increased by gold plating on the inside, and a width limiting ring was laid on the outer circumferential surface of the non-ferrous metal side ring to standardize the precipitation width of the copper foil deposited on the outer circumferential surface of the external drum to produce high-quality electrolytic copper thin plates.

This cathode drum is a cathode drum for electrolytic deposition that includes a shaft, a cathode drum coupled to the center of the shaft, and a wire for applying current from the shaft to the cathode drum,

The shaft includes a multi-axis shaft consisting of a large diameter portion and a small diameter portion provided on both sides of the large diameter portion and having a smaller outer diameter than the large diameter portion; Titanium linings provided inline at both ends of the multi-axis shaft; A pair of copper linings provided in-line at an end of each titanium lining and having a high-conductivity gold plating layer forming a first contact on an inner peripheral surface; and a pair of round rods provided to be inserted into the hollow portion of each copper lining, wherein the cathode drum is provided with a fitting hole in the center to be fitted into the outer peripheral surface of the small diameter portion of the multi-axis shaft, and are spaced apart from each other. A pair of steel side plates placed in the condition; A pair of titanium side plates provided in the center to be fitted into the outer peripheral surface of the titanium lining and spaced apart from each other on the outside of the steel side plates; A steel rod penetrating the steel side plate and connecting the pair of titanium side plates to each other; A titanium side ring disposed in close contact with an outer edge of the titanium side plate; A side ring made of non-ferrous metal disposed in close contact with the outer surface of the titanium side ring; an inner drum disposed on an edge between the titanium side plates, the inner peripheral surface of which is in close contact with the outer peripheral surface of the steel side plates, and having a second contact point through which current is conducted; and an outer drum disposed on an edge between the non-ferrous metal side rings, the inner circumferential surface of which is in close contact with the outer peripheral surface of the titanium side ring, the titanium side plate, and the inner drum, wherein the wire is connected to the first contact point. It consists of connecting between and the second contact point.

However, in such a conventional cathode drum, when a cathode current is applied, a high current is formed at the edges and a relatively low current is formed at the center due to the repulsive force of negative charges pushing each other, and the thickness varies when depositing a copper sheet. In other words, there is a problem in that the edges are thicker than the central area.

In addition, the first contact point and the second contact point described in the applicant's prior patent are connected with wires by attaching a mood bolt. However, the cathode drum used to manufacture copper plates is usually manufactured with a diameter larger than the height of an adult male, and in some cases, it exceeds 450 cm. Therefore, the wire connecting the shaft and the internal drum is quite long, and the fatigue and load on the contact point increases in proportion to the length. Here, there is a problem that the coolant supplied inside the drum during the precipitation process sloshes around when the drum rotates and impacts the wires, causing the contact points to fall out or boil.

Moreover, the surface of the outer drum is heated due to heat generation due to electrical resistance, and the surface temperature of the drum is irregular depending on the supply amount and circulation cycle of the coolant, so there is a problem that high quality and uniform thickness thin plates cannot be obtained.

The present invention was made in consideration of such conventional problems, and its purpose is to provide a prefabricated cooling water channel on the inner surface of the inner drum constituting the cathode drum so that heat generated by electrical resistance due to current supply is conducted to the outer drum. The goal is to provide a titanium drum that can mass-produce electrolytic copper thin plates of uniform thickness and high quality by preventing this from happening and maintaining a constant surface temperature of the external drum.

Another object of the present invention is to provide a current supply module that supplies current applied to the rotating shaft to the internal drum. This current supply module consists of a wire that supplies current and a connector to which the wire is connected, and the connector can be assembled to the internal drum. The cooling water channels are configured to be assembled together to improve assembling, and it also prevents the connector and coolant from being separated from external shocks, loads, and repetitive fatigue, and is equipped with a prefabricated cooling water channel that makes it easy to connect wires. is to provide.

The present invention is a titanium drum for manufacturing electrolytic copper thin plates,

The present invention maintains a constant surface temperature of the external drum where copper foil is deposited by installing a prefabricated cooling water channel in the internal drum. In addition, the surface temperature is maintained uniformly, which has the effect of mass producing high quality and uniform thickness electrolytic copper thin plates. It is an invention with

In addition, the present invention is provided with a current supply module that applies the current applied to the rotating shaft to the internal drum. This current supply module consists of a wire that supplies current and a connector to which the wire is connected. When assembling the connector to the internal drum, coolant is used. By constructing the furnace to be assembled together, assembly efficiency is improved, and it also has the effect of preventing escape into the coolant despite external shocks, loads, and repetitive fatigue.

1 is a cross-sectional view of one side of a titanium drum according to the present invention,
Figure 2 is a cross-sectional view of the prefabricated coolant applied to the present invention and a cross-sectional view of the assembled state;
Figure 3 is an exploded perspective view of the current supply module applied to the present invention;
Figure 4 is a front cross-sectional view of the current supply module assembling the cooling water channel according to the present invention;
Figure 5 is a cross-sectional view showing the cooling water channel and wire connection process using the current supply module applied to the present invention;
Figure 6 is a cross-sectional view showing the present invention in an assembled state.

The technical idea of the present invention will be described in detail with specific configurations and examples according to the technical idea as follows.

In explaining the present invention through examples, the same or similar names and symbols are used for components having the same or similar configuration and function, and additional descriptions that overlap or may cause the meaning of the invention to be interpreted limitedly are provided. may be omitted when describing embodiments of the present invention.

Prior to the specific description, even though it is described in the specification as a singular expression, in light of the environment in which singular/plural language is used without a clear distinction in Korean language use and the environment in which terms are commonly used in the relevant field, the concept of the invention It is used in the sense that includes plural expressions unless it is contradictory in interpretation or clearly means differently. In addition, 'comprises', 'has', 'comprises', 'consists of', etc. that are or may be described in this specification indicate the presence or addition of one or more other features or components or a combination thereof. It should be understood that it is not excluded in advance.

Hereinafter, preferred embodiments of the present invention will be described in detail based on the attached drawings.

Figure 1 attached to the present invention is a cross-sectional view of one side of the titanium drum according to the present invention, Figure 2 is a cross-sectional view of the prefabricated coolant applied to the present invention and a cross-sectional view of the assembled state, and Figure 3 is a current supply applied to the present invention. This shows an exploded perspective view of the module.

In addition, the attached Figure 4 is a front cross-sectional view of the current supply module for assembling the cooling water channel according to the present invention, Figure 5 is a cross-sectional view showing the cooling water channel and wire connection process using the current supply module applied to the present invention, and Figure 6 is A cross-sectional view showing the present invention in an assembled state is shown.

In the drawing, the titanium drum 10 of the present invention includes a cathode drum 100, a rotation shaft 200 that rotates the cathode drum 100, and a current applied to the rotation shaft 200 to the cathode drum 100. It consists of a current supply module 300 that supplies electricity to the electrolytic copper thin plate to select it, and a cooling water passage 400 is installed here to cool the cathode drum and maintain a constant surface temperature.

First, the cathode drum 100 of the titanium drum 10 according to the present invention includes an internal drum 120, an external drum 140 installed on the outer surface of the internal drum 120 by shrink fitting, and their shapes. It consists of a side plate 160 and a horizontal reinforcement bar 180 that maintain and reinforce the.

The inner drum 120 is made of iron or carbon steel in consideration of skeleton maintenance and processability, and is bent into a ring-shaped cylinder and manufactured through machining and surface treatment, and the outer drum 140 is made of a rolled titanium plate into a cylindrical shape. It is bent and molded and assembled on the outer surface of the inner drum 120 by shrink fit.

For example, the inner diameter of the outer drum 140 is configured to be smaller than the outer diameter of the inner drum 120, the outer drum 140 is heated to expand, and then fitted to the outside of the inner drum 120 and then cooled at room temperature to shrink. The outer drum 140 strongly tightens the inner drum 120, so that the outer drum 140 and the inner drum 120 come together.

The external drum 140 of the present invention is made of titanium. Titanium has superior corrosion resistance, wear resistance, and heat resistance compared to other functional metals. In particular, it maintains acid resistance to electrolyte solutions and has the advantage of being easy to peel from electrolytic copper thin plates.

The side plate 160 is bent and molded into a circle to maintain and reinforce the shape of the inner and outer drums 120 and 140 assembled by shrink fit, and is installed on both edges of the inner drum 120.

A vertical reinforcing plate 162 is also installed inside the side plate 160 to maintain and reinforce the skeleton by abutting the inner surface of the inner drum 120, and the side plate 160 and the vertical reinforcing plate 162 are the inner drum 120. It is composed of the same shape as (120) and the same diameter as the inner diameter of the inner drum, so that it is in close contact with the inner drum.

The horizontal reinforcing bar 180 penetrates the vertical reinforcing plate 162 and is installed across the side plate 160 to bind and reinforce the vertical reinforcing plate 162 and the side plate 160, thereby preventing the cathode drum 100 from shaking. You can rotate smoothly without any problems.

The rotation shaft 200 is installed through the center of the side plate 160 and the vertical reinforcement plate 162, and one side is connected to a drive motor (not shown), and is connected to an external distribution board to supply current.

The rotation axis 200 is composed of multiple stages as shown in the drawing, and the vertical reinforcement plate 162 and the side plate 160 are welded and fixed to the riser surface (vertical surface) of each stage in close contact.

The cathode drum 100 of this configuration is partially immersed in the electrolyte of an electrolytic cell (not shown), and the rotation shaft 200 and the cathode drum 100 are rotated by a drive motor to deposit an electrolytic copper thin plate.

In other words, in the cathode drum 100 of the present invention, the cathode and the anode electrode of the electrolyzer are charged with the weak electrode through the current supply module 300, and when a high density current is applied between them using the electrolyte as a medium, the electrolyte is included in the electrolyte. The copper in a cationic state is fused to the cathode drum, and thus solidifies and precipitates into a solid.

The precipitated copper is wrapped into an electrolytic copper sheet in the form of a metal sheet along the surface of the rotating cathode drum 100, and the foiled electrolytic copper sheet is wound around a bobbin under the guidance of an adjacent guide roller (not shown). It produces thin plates.

The current supply module 300 according to the present invention includes an electric wire 320, a connector 340 that connects the electric wire 320 to supply current, and a pressing member (340) that presses the split bent piece 346 to spread outward ( 380).

The wire 320 is composed of a connection plate 324 at each end of the cable 322. The cable consists of a braided wire made by twisting several conductors, for example, tin-plated copper wires. The connection plate 324 is connected by compression or fusion to the end of the cable 322, and a fitting hole 326 is formed in the center of the connection plate 324.

The fitting hole 326 is drilled in a circular or polygonal shape, identical to the external shape of the connector described later.

The connector 340 consists of a main body 342 made of a conductor including aluminum alloy, and the main body 342 is provided with a threaded portion 344 at the top, and is divided downward around the lower end of the threaded portion 344 ( 346) is extended, and the inner center of the split bent piece 346 is provided with a bolt head portion 348 integrally extending from the bottom of the screw portion 344.

The threaded portion 344 is attached to tabs formed on each of the rotating shaft 200 and the inner drum 120, and the split bent piece 346 is bent outward at 90° to bind the connecting plate 324.

Additionally, the threaded portion 344 penetrates the cooling water passage 400, which will be described later. That is, in order to install the cooling water conduit 400 on the inner surface of the internal drum, the threaded portion 344 of the connector 340 penetrates the insertion tube 440 provided in the cooling water conduit and is screwed to the internal drum. To this end, in the present invention, the threaded portion of the connector fastened to the inner drum is configured to be longer than the threaded portion installed on the rotating shaft 200.

On the other hand, the drawing shows that threads are formed throughout the threaded portion 344, but the part inserted into the insertion tube is made of a cylinder without threads, and only the part fastened to the upper part, that is, the internal drum, is provided with threads. You can.

As another example, the present invention further includes a configuration to prevent separation of the screw portion 344, thereby preventing separation of not only the screw portion but also the cooling water passage 400. This will be explained again.

The bolt head 348 is basically composed of a hexagon, and when attaching the screw portion 344, an extension or electric spanner can be used, and on the other hand, a 十 or 1 groove is made in the bolt head 348. It is also possible to form it so that an electric screwdriver can be used.

In addition, the present invention has the advantage of guiding the movement of the pressing member 380 by providing the bolt head 348 so that the split bent piece 346 is uniformly bent and unfolded.

As shown in FIG. 3, the split bent piece 346 according to the present invention is formed entirely as a polygon, and one split bent piece 346 has two sides inclined around the vertex 346-1. It is composed of a “V” shape.

In the present invention, the reason that each split bent piece 346 has a vertex is to prevent the angled vertex from being completely deformed by bending and thus not being restored.

The current supply module 300 of the present invention is provided with a separation prevention unit 360 that prevents the wire from coming off.

First, a groove 362 is provided on the bottom of the threaded portion 344 into which the inclined head 382 of the pressing member is inserted with the bolt head portion 348 as the center, and a first locking protrusion is provided at the lower part of the bolt head portion 348. (364) is provided, and a second stopping protrusion (366) is provided above the central portion.

The first locking protrusion 364 and the second locking protrusion 364 are composed of semicircular protrusions integrally protruding from the packing or bolt head, and the first locking protrusion 364 is larger than the second locking protrusion 366. It is composed of a relatively small size.

The first locking protrusion 364 and the second locking protrusion 366 of this configuration are such that when the operator presses the pressing member 380 with his or her finger for bending, the pressing member 380 is attached to the first locking protrusion 364. This is to prevent it from coming off as it is fitted, and when the pressing member 380 is hit again with a rubber mallet or pressed with an electric mechanism, the pressing member is forcibly fitted into the second locking protrusion 366 to prevent it from coming off.

The pressing member 380 is made of aluminum alloy or conductor-covered synthetic resin or rubber, and has an inclined head 382, a pressure plate 384, and a striking protrusion 386 protruding from the bottom of the pressure plate 384 from the top. It is configured, and a guide groove 388 is formed in the center that is inserted into the bolt head 348 and moves along the bolt head to allow the pressing member to move in a straight line.

The cooling water passage 400 according to the present invention is fixedly installed on the inner surface of the internal drum 120 by the connector 340, and circulates the cooling water flowing in from the inlet 402 provided on the rotating shaft 200 to cool the cathode drum. It cools down.

The cooling water conduit 400 is made of synthetic resin, aluminum alloy, iron plate, etc., and has a conduit 420 through which the cooling water flows, formed at equal intervals, for example, the number of contact points of the connect jaw 340, which will be described later, is equal to the number of contact points, The insertion tube 440 is provided at the same location.

The insertion tube 440 is made of aluminum, copper, or carbon steel, the threaded portion 344 of the connector is inserted, and if necessary, a female thread may be provided on the inner side, and the insert can be injection-molded or press-fitted into the cooling water passage 400. It is custom assembled.

The cooling water conduit 400 may be divided into at least two pieces and assembled. For example, the inner drum 120 can be manufactured by circular bending of a steel plate, etc., but there are limitations in manufacturing the cooling water channel 400, which has a water channel inside, as a single piece through molding. Therefore, the present invention It is formed into several sections in the direction and/or longitudinal direction, and each divided cooling water channel is assembled as shown in Figure 2 attached.

In other words, a circulation pipe 460 protrudes from one side of the divided cooling water passage 400a, and a fitting portion 480 into which the circulation pipe 460 is inserted is provided on the opposite side of the adjacent divided cooling water passage 400a. It will happen.

The circulation pipe 460 and the fitting portion 480 may be disposed in one or two or more pieces on one side, and an annular protrusion 462 for preventing separation and water leakage is provided on the outer surface of the circulation pipe 460. ) is provided, and a corresponding groove portion 482 is provided in the molding portion 480.

The annular protrusion 462 and the groove 482 have a semicircular or triangular shape, and it is preferable that at least two of them are formed at equal intervals.

Meanwhile, the rotating shaft 200 is provided with an inlet port 402 through which cooling water flows in to the outside, and a water outlet port 404 through which heat-exchanged coolant is discharged to the outside is formed on the side opposite to the inlet port.

The water inlet 402 and the cooling water passage 400 are connected to the supply pipe 402-1, and the drain pipe 404-1 installed on the opposite side of the fresh air supply pipe is connected to the water outlet 404.

The unexplained symbol 406 is an airtightness maintaining member, that is, a packing, and 408 is a packing groove.

In addition, symbol 120-1 is a groove formed on the upper surface of the inner drum, and both ends of the anti-loosening plate, which will be described later, protrude into the groove to prevent separation.

In other words, the present invention fixes the cooling water passage 400 and prevents the threaded part 344 from coming off, thereby preventing the cooling water passage from coming off.

For this purpose, the present invention is a triple stabilizer consisting of the fixing groove 362 that prevents the connection plate 324 from being separated, a second stopping protrusion 366, and a split bent piece 346 having an apex 346-1. is provided, and in addition, a safety device to prevent loosening and separation of the screw portion is further provided.

That is, a space 344-1 is formed on the upper surface of the screw portion 344 into which a loosening prevention piece 344-2 made of a leaf spring, an elastic wire, etc. is inserted, and a loosening prevention piece 344-2 is formed on the side wall of this space. ) A protruding hole 344-3 is provided.

A through hole 344-4 that guides the movement of the pusher 388-1 is drilled vertically from the center of the bottom surface of the space 344-1 to the bottom of the lower bolt head 348.

The pusher 388-1 is erected at the center of the bottom of the guide groove 388 of the pressing member 380.

The flim prevention piece 344-2 is assembled with the central portion curved downward as shown in the drawing to maintain elastic force, and both ends are protruded outward by the pressing member 380.

In other words, if the connecting piece 324 of the wire is inserted to the outside of the split bending piece 346 and then driven into the pressing member 380 or forcibly moved inside the split bending piece 346 using an electric mechanism, etc. , the inclined head 382 and the pressure plate 384 bend the split bending piece 346 outward to fix the connecting piece 324.

At this time, the push bar (388-1) provided in the guide groove (388) also moves along the through hole (344-4) and pushes the release prevention plate (344-2), and the release prevention plate extends to the protruding hole (344-3). When moved, both ends come out of the protruding hole 344-3 and unfold, causing both ends of the release prevention plate 344-2 to protrude.

In addition, both ends of the anti-loosening plate protruding from the threaded portion 344 are located in the groove 120-1 provided in the inner drum 120 and are caught on the bottom of the groove, so that the threaded portion does not come off.

In the present invention, the push bar (388-1) supports the center of the release prevention piece, and the upper surface of the space (344-1) is covered with the cover (344-5), so it is impossible for the release prevention piece to be bent again.

Accordingly, the loosening prevention piece continues to be maintained in an unfolded state and separation of the threaded portion is prevented.

The following describes the manufacturing process of the present invention.

First, in the present invention, the inner drum 120 is formed into a circular shape, and a tab is formed on the inner drum 120. At this time, the tabs are formed by varying the number of edges and center portions.

In other words, when a cathode current is applied to the cathode drum 10, negative charges move to the edge due to cathode repulsion. Therefore, a high current is generated at both edges and a relatively low current is formed at the center, so the thickness of the copper foil is not deposited uniformly.

Accordingly, the present invention allows current to flow evenly by gradually reducing the number of tabs, that is, the number of assembled connectors, from the center to the edge.

For example, the present applicant manufactured a cathode drum with a diameter of 3,500 cm and a width of 1,310 cm. The inner drum 120 (a steel drum made of steel) was divided into 6 rows from one edge to the opposite edge, and the shaft, or rotation axis, was divided into 12 rows and the wires 320 were wired as shown in Table 1 below.

As shown in Table 1, the steel drum, or internal drum, has 55 wires connected to each of the two central rows (columns 3 and 4), 37 wires each to the rows adjacent to the center (columns 2 and 5), and the next row (columns 2 and 5). Edge row) connected 28 wires to maintain the average current.

The allowable current for one wire is 158 to 165 A, and the total number of contacts is 230 to 250, and it is best to have 240 wires at 160 A as shown in Table 1.

Of course, the number of contact points and allowable current in Table 1 above were designed for a cathode drum with a diameter of 3,500 cm and a width of 1,310 cm, and it is natural that the number of contact points increases or decreases if the diameter and width of the drum are larger or smaller. However, as in the present invention, the ratio of the number of contact points between the edges and the center must be maintained.

In other words, when setting both edges of one side as 1, it is best to connect the wires at a ratio of 1:1.3 ~ 1.4: 1.9 ~ 2: 1.3 ~ 1.4:1.

In order to connect the connector 340, tabs are machined on the inner drum 120 to match the set number of contact points from row 1 to 6, or tabs are formed on the entire inner drum with the same number and spacing as the central region. There is a method of selectively connecting connectors according to the number of each row.

After tap processing, the cooling water conduit 400 is installed.

The cooling water conduit 400 is assembled by fitting the circulation pipe 460 and the fitting portion 480 in a divided state, and the connector 340 is assembled through the insertion pipe 440.

The threaded portion 344 of the connector 340 inserted through the insertion tube 440 is fastened to the tab formed on the inner drum 120 and is electrically connected, and also brings the cooling water passage 400 into close contact with the inner drum 120. The cooling water supplied to the water conduit 420 cools the cathode drum and maintains a uniform surface temperature at all times.

The connector 340 is installed inside the cooling water conduit 400, and is provided with a bolt head 348, so it is attached using an electric spanner or electric driver.

Naturally, tabs are machined at equal intervals on the rotation axis 300, and connectors 340 are also installed on these tabs.

The wire 320 is connected by inserting the connection plate 324 provided at each end of the cable 322 into the split bent piece 346. That is, the connection plate 324 is inserted to the outside of the split bent piece 346 through the fitting hole 326, and then the pressing member 380 is assembled.

When the pressing member 380 is fitted with the pusher 388-1 installed in the central guide groove 388 and the through hole 344-4 formed in the screw portion 344, the guide groove 388 and the bolt head (348) is also naturally aligned and inserted, and when the inclined head (382) moves to the inside of the end of the split bent piece (346), the tip of the pressing member is forced into the first stopping protrusion (364) and the pressing member (380) is caught. There will be.

In addition, a loosening prevention plate 344-2 is elastically installed on the upper part of the screw portion 344 in a curved state, and the upper surface is covered with a cover 344-5.

Next, when the striking protrusion 384 is hit with a rubber mallet or pressure is applied using an electric mechanism or pneumatics, the inclined head 382 is driven into the inside of the split bending piece 346, and the split bending piece 346 is pressed against the inclined surface of the inclined head. It spreads along and is completely opened and bent by the pressure plate 384 to come into close contact with the connection piece 324.

When the pressing member 380 is completely inserted into the connector 340, the inclined head 382 is inserted into the fixing groove 362 and is forced into place by the second locking protrusion 366, so that the pressing member is protected from external force, vibration, and fatigue. It will not deviate either.

In addition, since the split bending piece 346 is bent around the vertex, it cannot be restored and there is no fear of the connection plate coming off.

When the pressing member 380 is driven into the split bent piece 346, the pusher 388-1 moves along the through hole 344-4 and pushes the loosening prevention piece 344-2 into the protruding hole 344-3. ) direction, and when the loosening prevention plate moves to the protruding hole, the tightly curved anti-loosening plate unfolds and protrudes out of the hole on both sides, thereby preventing the threaded part from coming off.

The description of the presented embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be applied to other embodiments without departing from the scope of the invention. Thus, the present invention is not limited to the embodiments presented herein, but is to be construed in the broadest scope consistent with the principles and novel features presented herein.

10: titanium drum 100: cathode drum
120: internal drum 140: external drum
200 ; Rotating shaft 300: Current supply module
320: wire 340: connector
380: pressurizing member 400: cooling water
420: waterway

Claims (4)

As a titanium drum for manufacturing electrolytic copper thin plates,
An inner drum made of steel bent and molded into a circle, an outer drum formed of titanium into a circle and then assembled by shrink fitting to the outside of the inner drum, side plates installed on both edges of the inner drum, and installed inside the side plate. A cathode drum consisting of a vertical reinforcement plate that maintains and reinforces the shape of the inner drum;
A divided cooling water passage is provided with a water passage through which cooling water flows, a circulation pipe is provided on one side of the divided cooling water passage, and a joint part into which the circulation pipe is inserted is provided in the divided cooling water passage assembled adjacently, and the cooling water is inserted. as;
A rotating shaft passing through the center of the side plate and the vertical reinforcement plate to rotate the cathode drum;
It is composed of a current supply module consisting of a connector assembled to a tab formed on each of the rotating shaft and the inner drum, and a wire provided with a connection plate inserted into the connector at both ends and supplying the current applied to the rotating shaft to the inner drum,
A titanium drum with a prefabricated cooling water conduit, wherein the connector assembled to the inner drum penetrates the capillary conduit and the threaded part is fastened to the tab of the inner drum so that the power supply and cooling water conduit are installed together. According to clause 1,
A titanium drum in which the circulation pipe is provided with an annular protrusion that protrudes to the outside, and a groove corresponding to the annular protrusion is provided on the inner surface of the molding part, and a prefabricated cooling water channel is provided to prevent water leakage when these are inserted. According to claim 1 or 2,
A titanium drum with a prefabricated cooling water passage, including one or two or more circulation pipes and fittings on one side of the divided cooling water passage. According to clause 1,
The connector is composed of a threaded portion from the top and a split bent piece provided around the lower end of the threaded portion, and the threaded portion penetrates the cooling water passage and is fastened to the tab of the inner drum. A titanium drum with a prefabricated coolant passage.

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