KR101071329B1 - Metal foil electrolytic manufacturing apparatus - Google Patents

Abstract

An object of this invention is to provide the metal foil electrolytic manufacturing apparatus which can make the flow of electrolyte solution supplied from a liquid supply apparatus uniform, and can supply electrolyte solution to the surface of a rotating cathode drum uniformly.

In the metal foil electrolytic manufacturing apparatus (A) which has the rotating cathode drum 1 which electrodeposits metal foil, the anode 2 which opposes this, and the liquid supply apparatus 5 which supplies electrolyte solution, the liquid supply apparatus 5 Is arranged in parallel with the axis of rotation of the rotating cathode drum 1, and further includes a liquid supply port 6 having an slit-shaped opening on the upstream side X and the downstream side Y, respectively. ) Is configured at the upper end of the liquid supply device 5, and is continuously opened at the same gap along the width direction.

Description

Metal foil electrolytic manufacturing apparatus {METAL FOIL ELECTROLYTIC MANUFACTURING APPARATUS}

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic side sectional view of a metal foil electrolytic production apparatus of a first embodiment.

2 is a sectional front view of the liquid supply apparatus;

3 is an enlarged cross-sectional view taken along line III-III of FIG. 2;

4 is a partially cutaway perspective view of the liquid supply port;

5 is a partially cutaway front view showing a second embodiment of a liquid supply port;

6 is a partially cutaway perspective view showing a third embodiment of a liquid supply port;

7 is a partially cutaway perspective view showing a second embodiment of the pressure reduction mechanism;

Fig. 8 is a sectional front view showing the third embodiment of the decompression mechanism.

9 is a sectional front view showing a fourth embodiment of the pressure reduction mechanism.

10 is a sectional front view showing a fifth embodiment of the pressure reduction mechanism.

Description of the Related Art

A: metal foil electrolytic production apparatus 1: rotary cathode drum

2: anode 4: liquid inlet

5: liquid supply device 6: liquid supply port

7: decompression mechanism 8: liquid flow path

51: side plate 52: top plate

54: control panel 59: screw

60: long hole 72: slit plate

72a: slit 73: plate

74: plate R1: lower liquid chamber

R2: Middle liquid chamber R3: Upper liquid chamber

X: Upstream Y: Downstream

The present invention relates to a rotating cathode drum for electrodepositing a metal foil, an anode facing the rotating cathode drum, and a metal foil electrolytic production apparatus for electrodepositing a metal on a rotating cathode drum while continuously supplying an electrolyte solution between the rotating cathode drum and an anode. will be.

Conventional metal foil electrolytic apparatus has a problem that it is difficult to obtain a uniform thickness of the metal foil because the flow of the electrolyte solution is not easily uniform. In order to solve this problem, the invention described in the following patent document was proposed.

[Patent Document 1] Japanese Patent No. 3150814

According to the invention described in Patent Document 1, the electrolyte supply port of the electrolyte supply device for continuously supplying the electrolyte solution between the rotating cathode drum and the anode has a slit shape parallel to the rotation axis direction of the rotating cylinder cathode to the gap from below the rotating cylindrical cathode. The opening and the electrolyte supply port include a plurality of electrolyte flow rate adjusting means over a width section for electrodepositing the metal foil.

Since the electrolyte supply port described in Patent Document 1 regulates the flow rate through a plurality of electrolyte flow rate means over the width section, there is a problem that the flow of the electrolyte solution supplied from the opening is not uniform and is not evenly supplied to the surface of the rotating cylinder cathode. . In addition, the plurality of electrolyte flow rate adjusting means was not practical because of the complicated structure.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object thereof is to provide a metal foil electrolytic production apparatus capable of uniformly flowing the electrolyte solution supplied from the liquid supply device with a simple configuration, and supplying the electrolyte solution evenly to the surface of the rotating cathode drum. It is done.

SUMMARY OF THE INVENTION The present invention provides a liquid supply for supplying an electrolyte solution to a rotating cathode drum for electrodepositing a metal foil, an anode having an arcuate curved surface opposite to the rotating cathode drum, and a liquid flow path between the rotating cathode drum and the anode. In a metal foil electrolytic production apparatus in which a device is placed and electrodeposited metal on a rotating cathode drum while supplying an electrolytic solution, and the metal foil is continuously peeled from the rotating cathode drum, the liquid supply device is parallel to the axis of rotation of the rotating cathode drum. And a liquid supply port having slit-shaped openings on the upstream side and the downstream side with respect to the rotational direction, respectively.

Moreover, the gist of this invention is that the said liquid supply port is comprised in the upper end of the liquid supply apparatus, and was continuously opened in the same clearance gap along the width direction of the liquid supply apparatus.

Moreover, it is a summary of this invention that the said liquid supply port made it possible to adjust the clearance gap of the opening part.

In addition, the present invention is a gist of the present invention, the liquid supply apparatus has two or more chambers in a row, between each chamber is arranged a pressure reducing mechanism, and after the electrolyte is sequentially reduced in pressure from the inlet of the liquid supply device, the liquid supply It is in the outflow from the sphere.

Moreover, the gist of the present invention is that the pressure reducing mechanism narrows the liquid flow path by the slit plate.

Moreover, the gist of the present invention is that the pressure reducing mechanism is made of a porous material.

Moreover, the summary of this invention is that the said pressure reduction mechanism is comprised from the filler which has a space | gap.

Best Mode for Carrying Out the Invention The best embodiment of the present invention includes a rotary cathode drum for electrodepositing a metal foil, an anode having an arcuate curved surface opposite thereto, and a liquid supply device for supplying an electrolyte solution to a liquid flow path between the rotary cathode drum and the anode. In the metal foil electrolytic production apparatus, the liquid supply apparatus includes a liquid supply port disposed in parallel with the rotation axis of the rotating cathode drum, and having a slit-shaped opening in the upstream side and the downstream side, respectively, with respect to the rotational direction. The liquid supply port is a metal foil electrolytic production apparatus that is continuously opened at the same gap along the width direction of the liquid supply apparatus configured above the liquid supply apparatus.

A first embodiment of the present invention will be described with reference to the drawings.

1 is a schematic side sectional view of a metal foil electrolytic apparatus of the first embodiment, FIG. 2 is a sectional front view of the liquid supply device, FIG. 3 is an enlarged sectional view taken along line III-III of FIG. 2, and FIG. Some cutaway perspective views.

The outline of the metal foil electrolysis manufacturing apparatus A is demonstrated based on FIG. This apparatus has the same structure as that used conventionally, and includes a rotating cathode drum 1 for electrodepositing a metal foil and an anode 2 disposed along the circumferential surface of the rotating cathode drum 1. And at the lower end position of the rotating cathode drum 1, the liquid supply apparatus 5 for supplying electrolyte solution to the liquid flow path 8 provided between the rotating cathode drum 1 and the anode 2 is provided.

Electrolyte is supplied from the inside of this liquid supply apparatus 5 toward the liquid flow path 8, and this electrolyte rises along the circumferential surface shape of the rotating cathode drum 1 as shown by the arrow of FIG. It is overflowing with). As a result, the metal foil 10 deposited on the circumferential surface of the rotating cathode drum 1 is wound around the winding roll 12 via the guide roll 11.

The liquid supply apparatus 5 of this embodiment is comprised in the upper end of the liquid inflow port 4 which communicates with electrolyte tank (not shown), and the upper end is arrange | positioned in the liquid flow path 8.

The said liquid supply apparatus 5 is a cylindrical body comprised by the both long side plates 51 and 51 and the upper plate 52, and two liquid chambers R1 and R3 are provided inside. This liquid supply apparatus 5 is arrange | positioned in the same length as the width of the rotating cathode drum 1, and in parallel with the rotating shaft of the rotating cathode drum 1. As shown in FIG.

A gap is formed between the upper ends of both side plates 51 and 51 of the liquid supply device 5 and the upper plate 52, so that the electrolyte is upstream of the liquid flow path 8 (in the direction of the arrow X in FIG. 3). The liquid supply ports 6 and 6 for supplying to the downstream side (arrow Y direction of FIG. 3) are comprised.

Since this liquid supply port 6 is provided continuously over the entire length of the upper ends of the two side plates 51 and 51, it is equal to the width of the rotating cathode drum 1, and its shape is the liquid flow path (from the liquid chamber R3) 8) It is a slit shape that is inclined horizontally or slightly upwardly toward the opening.

The pressure reduction mechanism 7 is configured inside the liquid supply device 5. The pressure reducing mechanism 7 of the present embodiment is a long plate 71 attached with narrow portions 71a and 71a at both ends of the gap between the side plates 51 and 51 over the entire length of the side plate 51. Is done. By this board | plate material 71, the inside of the liquid supply apparatus 5 is divided into the lower liquid chamber R1 and the upper liquid chamber R3.

The effect | action of the metal foil electrolytic manufacturing apparatus comprised as mentioned above is demonstrated.

The electrolyte solution flows into the lower liquid chamber R1 in the liquid supply device 5 from the liquid inlet 4 at the lower end, but at this time, the electrolyte solution impinges on the plate 71 to absorb the inflow rate. Thereafter, the electrolyte flows into the liquid chamber R3 from the narrow portions 71a and 71a, but is narrowed in the narrow portion 71a to obtain a uniform pressure and a uniform flow rate, and thus the upper liquid chamber R3. Is sent to. And when it flows out into the liquid flow path 8, it narrows more in the slit-shaped liquid supply port 6, and becomes a more uniform pressure and a more uniform flow velocity.

The outflowed electrolyte is separated into the upstream side X and the downstream side Y of the liquid flow path 8 by the opening of the liquid supply port 6, and is uniformly supplied in the width direction of the rotating cathode drum 1. It is going out.

FIG. 5 is a partially cutaway front view showing a second embodiment of the liquid supply port 6.

In the present embodiment, the recesses 61 are formed at both ends of the upper end of the side plate 51. The recess 61 widens the gap between the liquid supply ports 6 at both ends, so that a large amount of the electrolyte solution flows out. Therefore, since a large amount of electrolyte is supplied near both ends of the rotary cathode drum 1 located near the recess 61, the foil is formed thicker than other portions.

Thereby, the problem that foil is easy to tear at both ends at the time of the conventional winding is eliminated.

6 is a partially cutaway perspective view showing a third embodiment of the liquid supply port.

In this embodiment, the clearance of the opening part of the liquid supply port 6 can be adjusted. That is, the adjustment mechanism which fixed the long control plate 54 with the some screw 59 along the upper end of the two side plates 51 is comprised, respectively. This adjustment mechanism forms a longitudinal long hole 60 at an appropriate point such as an end of the adjustment plate 54, and screws the screw 59 to the long hole 60, thereby It is to set the position by moving the control panel 54 up and down within the range. As a result, the width of the liquid supply port 6 can be freely changed.

By the action of this adjusting mechanism, the supply amount of the electrolyte solution can be easily and surely adjusted, and the balance of the liquid supply amount from each opening can be changed.

FIG. 7 is a partially cutaway perspective view showing a second embodiment of the pressure reduction mechanism 7. This pressure reduction mechanism 7 adhere | attaches the both ends to the side plates 51 and 51 over the whole length of the two side plates 51 and 51 with the slit plate 72 in which the many slits 72a were formed in the surface. will be.

According to this slit plate 72, since the electrolyte flows through the liquid flow path narrowed by the slits 72a, 72a, ..., and flows out from the lower liquid chamber R1 to the upper liquid chamber R3, the electrolyte solution has a uniform pressure, It becomes a uniform flow velocity and is sent to the upper liquid chamber R3.

Although not shown, a pressure reducing means may be used instead of the slit plate 72 using a shielding plate, an orifice, or the like.

8 is a sectional front view showing a third embodiment of the pressure reduction mechanism 7. This pressure reduction mechanism 7 adhere | attaches the both ends of the board | plate material 73 which consists of a porous material on the side boards 51 and 51 over the full length of two side plates 51 and 51.

According to the plate material 73, when the electrolyte solution passes through the plate material 73 and flows from the lower liquid chamber R1 to the upper liquid chamber R3, the electrolyte solution passes through a plurality of holes so that the electrolyte solution is uniform by the plate material 73. Pressure, a uniform flow rate can be delivered to the upper liquid chamber (R3).

9 is a sectional front view showing a fourth embodiment of the pressure reduction mechanism 7.

This pressure reduction mechanism 7 adhere | attaches the both ends to the side plates 51 and 51 over the full length of the two side plates 51 and 51 with the plate member 74 which consists of a filling material which has a space | gap.

According to the plate member 74, when the electrolyte solution passes through the plate member 74 and flows from the lower liquid chamber R1 to the upper liquid chamber R3, the electrolyte solution passes through a plurality of pores of the filling material, so that the uniform pressure, A uniform flow rate may be delivered to the upper liquid chamber R3.

10 is a sectional front view showing a fifth embodiment of the pressure reduction mechanism 7. In this embodiment, two sheets 71 of the first embodiment are arranged in parallel, and the liquid supply apparatus 5 is divided into three by the two sheets 71 so that the lower liquid chamber R1 and the intermediate liquid chamber ( R2) and the upper liquid chamber R3 are formed, and the width of the liquid chamber R3 is narrower than that of the liquid chamber R2.

According to this decompression mechanism, the electrolytic solution has the effect that the two sheets of material 71 can be made to have a uniform pressure and a uniform flow rate more efficiently than the decompression mechanism of the first embodiment.

Since the present invention has the configuration as described above, according to the invention described in claim 1, the liquid supply apparatus includes a liquid supply port having two slit-shaped openings on the upstream side and the downstream side of the liquid flow path. Is supplied smoothly and evenly along the surface of the rotating cathode drum.

As a result, the thickness of the metal foil formed on the circumferential surface of the rotating cathode drum becomes uniform, and a high quality metal foil can be efficiently produced by an apparatus having a simple configuration.

According to the invention as set forth in claim 2, the liquid supply port is continuously supplied at the same gap along the width direction of the liquid supply device, so that the liquid supply port is supplied evenly over the entire width direction of the peripheral surface of the rotating cathode drum.

According to the invention of claim 3, the liquid supply port makes it possible to adjust the gap between the openings, so that the supply amount of the electrolyte solution can be easily adjusted, and the balance of the liquid supply amount from each of the openings can be changed.

According to the invention as set forth in claim 4, the liquid supplying device has two or more continuous chambers, and since the decompression mechanism is arranged between the chambers, the flow rate of the supplied electrolyte flows into the first chamber from the liquid inlet port. Moreover, when passing through a decompression mechanism, it becomes a uniform pressure and a uniform flow velocity in the width direction.

According to the invention of claim 5, the pressure reducing mechanism is formed of a slit plate, whereby the liquid flow path is narrowed, whereby the electrolyte can be made uniform and the flow velocity can be uniformly supplied over the entire length of the pressure reducing mechanism.

According to invention of Claim 6, since the said pressure reduction mechanism was comprised from the porous material, it can make it supply uniformly the flow velocity over the entire length of a pressure reduction mechanism, and make electrolyte solution uniform pressure with a simple structure.

Further, according to the invention of claim 7, since the pressure reducing mechanism is constituted by a filler having voids, the electrolyte can be made uniform in pressure with a simple configuration, and the flow velocity can be uniformly supplied over the entire length of the pressure reducing mechanism.

Claims (7)

Arranging a rotating cathode drum for electrodepositing the metal foil, an anode having an arcuate curved surface facing the rotating cathode drum, and a liquid supply device for supplying an electrolyte solution to a liquid flow path between the rotating cathode drum and the anode, In the metal foil electrolytic manufacturing apparatus which electrodeposits a metal on a rotating cathode drum, and removes a metal foil continuously from this rotating cathode drum, The liquid supply device is disposed in parallel with the rotating shaft of the rotating cathode drum, and is a cylindrical body composed of both long side plates and a top plate, and has a liquid chamber provided therein, and an upper end of the liquid supply device is the liquid flow path. It is arranged in the inside of the liquid flow path, and the gap between the side plate and the upper plate to form a narrow portion, and the electrolyte solution upstream and downstream of the liquid flow path in the rotation direction A metal foil electrolytic production apparatus comprising a liquid supply port for supplying each. The metal foil electrolytic production apparatus according to claim 1, wherein the liquid supply port is configured at an upper end of the liquid supply device and is continuously opened at the same gap along the width direction of the liquid supply device. The metal foil electrolytic production apparatus according to claim 1 or 2, wherein the liquid supply port makes it possible to adjust the gap between the openings. The liquid supply apparatus according to claim 1 or 2, wherein the liquid supply apparatus has two or more continuous chambers, a decompression mechanism is disposed between the chambers, and the electrolyte solution is sequentially reduced in pressure from the inlet of the liquid supply apparatus. An apparatus for producing a metal foil electrolysis, which flows out from a supply port. The metal foil electrolytic production apparatus according to claim 4, wherein the pressure reducing mechanism narrows the liquid flow path by a slit plate. The metal foil electrolytic production apparatus according to claim 4, wherein the pressure reduction mechanism is made of a porous material. The metal foil electrolytic production apparatus according to claim 4, wherein the pressure reduction mechanism is made of a filler having voids.

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