WO2014103393A1 - Electrodeposited metal-stripping device and electrodeposited metal-stripping method - Google Patents

Abstract

[Problem] To provide an electrodeposited metal-stripping device and an electrodeposited metal-stripping method capable of reducing the occurrence of noise when stripping electrodeposited metal and of supplying the stripped electrodeposited metal quietly to a subsequent process. [Solution] An electrodeposited metal-stripping device for stripping two paired electrodeposited metals or two separated electrodeposited metals, which have been electrodeposited on the two surfaces of a cathode plate, from the cathode plate by electrolytic refining, the device being provided with: upper support devices; lower support devices; hammering devices; flexing devices; wedge-driving devices disposed so as to be capable of rotation and vertical movement; at least one pinch roller discharging device; and a casing, the orientation of which can be changed. The cathode plate is hammered by the hammering devices, the electrodeposited metals are bent by the flexing devices, the electrodeposited metals are stripped by the wedge-driving devices, and the stripped electrodeposited metals are stored in the casing thereunder.

Description

Electrodeposition metal stripping apparatus and electrodeposition metal stripping method

In the present invention, in the electrolytic refining of metal, for example, the electrolytic refining of copper, zinc, etc., the work of stripping the electrodeposited metal electrodeposited on the cathode plate from the cathode plate is efficiently performed and the generation of noise is suppressed as much as possible. The present invention relates to an electrodeposited metal stripping apparatus and a method for stripping an electrodeposited metal.

Conventionally, a cathode plate that can be used repeatedly has been employed in electrolytic refining of non-ferrous metals such as copper and zinc.
For example, in zinc refining, aluminum plate is used as the cathode (cathode), zinc is used as the anode (anode), and the anode and cathode are alternately immersed in the electrolytic cell, and DC voltage is applied between the two electrodes to deposit on the cathode. The zinc is stripped off to make a product.

In the electrolytic refining of copper, a stainless steel plate is used as a cathode, and crude copper or lead is used as an anode, and the copper deposited on the stainless steel plate is peeled off to obtain a product.
This electrolysis is usually carried out for about 1 to 2 days in the case of zinc, and continuously for about 7 to 10 days in the case of copper. When the electrodeposited metal reaches a predetermined weight (50 to 200 kg), it is lifted from the electrolytic cell, and the electrodeposited metal is peeled off from the cathode plate. In addition, the aluminum plate and stainless steel plate from which the electrodeposited metal is peeled are repeatedly used as the cathode. For example, Patent Document 1 is known as such an example.

Here, among processes practically used as such an electrolysis method, there is a method called an ISA method. In the ISA method, both sides and the lower part of the cathode plate are insulated and masked with plastic or rubber so that electrodeposition does not reach both sides and the lower part. After the electrolysis is completed, electrolytic copper electrodeposited on both sides of the cathode plate is used. In this method, two pieces of electrolytic copper are obtained from one cathode plate by peeling off with a peeling machine.

Recently, as disclosed in, for example, Patent Document 2, in the ISA method, the lower portion of the cathode plate is not masked, and instead, V groove processing is performed on the lower portion of the cathode plate. A method has also been proposed in which the electrodeposited copper can be easily separated when stripped.

In such conventional electrolytic refining of metal, a cathode plate 2 having a structure as shown in FIGS. 11A and 11B is used.
In addition, in the apparatus related to the stripping of the cathode plate 2 shown below, since the elements on both sides are substantially symmetrical, a is added after the code on one side and b after the code on the other side. explain.

For example, one electrodeposited metal is 10a, and the other electrodeposited metal is 10b. When both are indicated, the electrodeposited metal 10 may be used.
As shown in FIG. 11A, the cathode plate 2 includes a hanger bar 4 that is a horizontal support member, a plate-like electrode plate body 6 that is attached to the hanger bar 4 in the vertical direction, and a masking 8. And. In copper refining, as shown in FIG. 11B, a V-shaped groove 6a may be formed on the lower end surface of the electrode plate body 6 instead of masking.

Then, when the electrodeposited metals 10a and 10b electrodeposited on both sides of the cathode plate 2, that is, on both sides of the electrode plate body 6, as shown in FIG. 12, the upper hangers are paired with a pair of upper support devices 12a and 12b. Supports both sides of the bar 4. Moreover, the both side surfaces of the electrodeposited metals 10a and 10b are supported by the pair of lower support devices 44a and 44b.

Next, by striking one side or the other side of the cathode plate 2 with the striking devices 14a and 14b arranged in a direction substantially perpendicular to the cathode plate 2, for example, it was deposited on the side opposite to the striking side. A gap S is formed in the upper joint portion 5 between the electrodeposited metal 10b and the electrode plate body 6. In this way, the operation of first forming the gap S in a part of the cathode plate 2 is referred to as opening or opening.

After hitting with such hitting devices 14a and 14b one by one in turn, forming gaps S and S on both sides of the upper joint portion 5 that are tightly coupled without gaps, the gaps S and S are respectively formed. After inserting the corresponding wedge member 16a or wedge member 16b, the pair of wedge members 16a and 16b are moved downward as shown in FIG. Let

Thus, in the conventional stripping device 15, as shown in FIG. 12, the mouth is opened by applying force only at the striking device 14 to an appropriate position, and the gaps S and S formed are shown in FIG. 13. As described above, by inserting the wedge members 16a and 16b and simultaneously moving the wedge members 16a and 16b downward, the formation range of the gap S is expanded, and the separation is completely performed.

In addition, when the electrodeposited metals 10a and 10b are zinc, there are cases where the two electrodeposited metals 10a and 10b are connected at the lower end and may be dropped separately due to the lower insulating masking. On the other hand, when the electrodeposited metals 10a and 10b are copper, the electrode plate body 6 is provided with a V-shaped groove 6a as shown in FIG. Is generally separated and dropped, but like zinc, the lower end may be connected.

By the way, in the case of performing zinc refining and repeatedly striking with the striking devices 14a and 14b as described above to open the openings on both sides of the cathode plate 2, the electrode plate made of aluminum is used because the electrolytic zinc is soft. There was a problem that the main body 6 would be deformed. The electrode plate body 6 that has been deformed in this way is not suitable for long-term use because it affects electrodeposition.

Further, the hitting sound to the cathode plate 2 by the hitting devices 14a and 14b is extremely loud, and there is a problem that it is not preferable in terms of occupational safety and health of the workers.
On the other hand, as a technique not using the striking devices 14a and 14b, an insulating member made of plastic or rubber is provided at both upper ends of the electrode plate body 6 as in the cathode plate 2 shown in FIGS. 14 (A) and 14 (B). 18 and 18 are also embedded.

Thus, if the insulating member 18 is embedded in the portion corresponding to the wetted surface, the electrodeposited metals 10a and 10b do not deposit on the surface of the insulating member 18, so that the gap S can be formed without using the striking device 14.

However, when the insulating member 18 is embedded in the portion corresponding to the wetted surface, the electrode plate body 6 is easily corroded around the insulating member 18. That is, in zinc refining, since an aluminum plate is adopted as the electrode plate body 6, the plate thickness in the vicinity of the insulating member of the electrode plate body 6 made of aluminum becomes thinner with long-term use, and as a result, buried. There is a problem that the insulating member 18 is rattled, the electrolytic solution penetrates the gap, and the electrodeposited metals 10a and 10b are connected through the gap, and the electrodeposited metals 10a and 10b cannot be peeled off from the electrode plate body 6. was there.

In order to eliminate the gap between the insulating member 18 and the electrode plate body 6, the insulating member 18 is damaged by mechanical force when it is replaced with a thin insulating member 18 that matches the thickness of the electrode plate body 6 or peels off. In some cases, the maintenance cost is enormous.

When the cathode plate that can be used repeatedly is used as described above, the electrodeposited metals 10a and 10b peeled off from the electrode plate body 6 are added from the wedge members 16a and 16b regardless of the presence or absence of the insulating member 18. Because it was dropped downward with the force of force, the impact sound generated at the time of dropping was loud and improvement was required.

Therefore, in the conventional stripping device 15, as shown in FIG. 15 showing the lower part of FIG. 12, the guide member 20 whose tip is bent below the striking device 14 (below the lower support device 44). Is installed. The electrodeposited metal 10 falling from above is once received by the bent guide member 20 and then gradually transferred onto the conveyor 19 and finally in a lying position. It is supplied to the process.

In FIG. 15, reference numeral 17 denotes a stopper for receiving the tip portions of the electrodeposited metals 10a and 10b.
The stopper 17 may be provided directly on the transport conveyor 19, but may be provided separately from the transport conveyor 19.

Even with the conventional stripping device 15 that receives the electrodeposited metal 10 with the guide member 20 bent in this way, the reduction of impact sound is limited, and the work environment due to noise is improved because it falls while bouncing. It has not been.

JP-A-2005-240146 Special table 2003-502512

In view of such a situation, the present invention reduces the generation of noise when stripping the electrodeposited metal, and can further gently supply the electrodeposited metal to the next process without causing bounce. An object of the present invention is to provide an electrodeposited metal stripping apparatus and a method for stripping an electrodeposited metal.

In order to achieve the above object, the electrodeposited metal stripping device of the present invention comprises:
An electrodeposited metal stripping device for stripping from the cathode plate two pairs or two separate electrodeposited metals electrodeposited on both sides of the cathode plate by electrolytic refining,
An upper support device for supporting an upper portion of the cathode plate in a state where the cathode plate is suspended;
A lower support device for supporting a lower portion of the cathode plate in a state where the cathode plate is suspended;
A striking device for striking the cathode plate whose upper end and lower end are respectively supported by the upper support device and the lower support device;
A flexing device that presses the cathode plate, the upper end portion and the lower end portion of which are respectively supported by the upper support device and the lower support device;
The cathode plate supported by the upper support device is disposed so as to be rotatable and vertically movable, and is rotated between the cathode plate and the electrodeposited metal by rotating in a direction approaching the cathode plate. A wedge driving device for removing the electrodeposited metal from the surface of the cathode plate by inserting a wedge member into the gap and moving the wedge member downward from the inserted state;
A pinch roller discharge device for capturing the electrodeposited metal peeled off from the surface of the cathode plate and falling from the lower support device, and discharging the captured electrodeposited metal further downward;
A casing that is disposed below the pinch roller discharge device and is formed so that at least an upper portion is open, and can be changed from a standing posture to a lying posture, or from a lying posture to a standing posture, and
By striking the cathode plate with the striking device, a gap is formed at the upper joint between the cathode plate and the electrodeposited metal,
By pressing the cathode plate by the flexing device, the cathode plate and the electrodeposited metal are curved,
By moving the wedge member of the wedge driving device into the gap and moving it downward, the electrodeposited metal is peeled off from the cathode plate, and the peeled electrodeposited metal is dropped downward and dropped. The electrodeposited metal is captured by the pinch roller discharging device, discharged from the pinch roller discharging device, the discharged electrodeposited metal is accommodated in the casing, and the electrodeposited metal accommodated in the casing is The casing is configured to lie on its side.

According to the electrodeposited metal stripping device having such a configuration, the hitting device that is likely to generate noise is less struck, the gap is enlarged by the flexing device that generates less noise than the hitting device, and the stripping is further performed. Generation of noise can be limited as much as possible by receiving the taken electrodeposited metal with the lower pinch roller. Furthermore, by receiving the electrodeposited metal that falls away from the pinch roller in the casing, the generation of noise from peeling to transfer is reduced, and the entire casing is changed to a sideways posture. Can be suppressed.

The electrodeposited metal stripping device of the present invention is
The rotational speed of the pinch roller discharge device can be changed,
The rotational speed when discharging downward (immediately before the electrodeposited metal leaves the pinch roller) is set slower than the rotational speed when receiving the electrodeposited metal from above.
As a result, the falling speed of the electrodeposited metal can be reduced before leaving the pinch roller.

Furthermore, the electrodeposition metal stripping device of the present invention is
The pinch roller discharge device is
It is possible to move in the direction of increasing or decreasing the distance between the pair of rollers,
When the electrodeposited metal is discharged downward, the distance between the pair of rollers is increased.

Even in such a setting, since the speed when the electrodeposited metal is separated from the pinch roller can be reduced, the generation of noise when the electrodeposited metal is received below can be suppressed.

In addition, the method for stripping the electrodeposited metal of the present invention includes:
An electrodeposited metal stripping method for stripping two pairs of electrodeposited metals or two separate electrodeposited metals electrodeposited on both sides of a cathode plate by electrolytic refining,
A mouth opening step for forming a gap in an upper joint portion between the cathode plate and the electrodeposited metal;
A gap expanding step of bending the cathode plate to enlarge a gap between the cathode plate and the electrodeposited metal;
A stripping step of stripping the electrodeposited metal from the cathode plate by inserting a wedge member into the gap formed between the cathode plate and the electrodeposited metal and moving it downward.
A pinch roller discharging step of capturing the electrodeposited metal peeled in the stripping step with a pinch roller and discharging it downward via the pinch roller;
A casing housing step of housing the electrodeposited metal discharged in the pinch roller discharging step in a casing;
A posture changing step of lying down the electrodeposited metal housed in the casing in the casing housing step together with the casing;
It is characterized by having.

With such a method, it is possible to reduce the number of hits by a noisy hitting device as much as possible, and it is possible to guide it downward after receiving it with a pinch roller instead of dropping it as it is when falling. Because it is possible, the generation of noise can be suppressed.
Also, below the pinch roller, it is housed in a casing and transported downstream with the casing lying on its side. For example, if a cushioning material or the like is housed in this casing, it can be delivered more silently. Can do. Furthermore, the fall distance can be shortened by shortening the separation distance between the pinch roller and the casing.

Furthermore, the method for stripping the electrodeposited metal of the present invention comprises:
In the pinch roller discharge process,
The rotation speed of the pinch roller is reduced when the electrodeposited metal is discharged (immediately before the electrodeposited metal leaves the pinch roller) than when the electrodeposited metal is captured.
Thus, the generation of noise can be suppressed by making the rotation speed of the pinch roller slower than the case of receiving the electrodeposited metal.

In addition, the method for stripping the electrodeposited metal of the present invention includes:
In the pinch roller discharge process,
The distance between a pair of rollers of the pinch roller is wider when discharging the electrodeposited metal than when capturing the electrodeposited metal.
An urging means such as a spring is interposed between the pair of pinch rollers. Then, by pressing two rollers or one roller of the pair of pinch rollers in a direction away from the urging force of the urging means consisting of a spring, the distance between the rollers is increased according to the thickness of the electrodeposited metal. The gap can be adjusted automatically.
If set in this way, the electrodeposited metal can be quickly dropped.

In addition, the method for stripping the electrodeposited metal of the present invention includes:
In the pinch roller discharge process,
A plurality of the pinch rollers are provided in the vertical direction.

With this setting, even if the fall distance from one pinch roller to the lower casing is long, it is possible to shorten the fall distance until it leaves the bottom pinch roller and is captured in the lower casing. The impact sound can be reduced.

According to the present invention, hitting by a noisy hitting device with as little noise as possible is reduced as much as possible, and a gap is formed reliably by a subsequent flexing device, and the wedge member is inserted into the wedge driving device and the wedge member is moved downward. Thus, the electrodeposited metal can be easily peeled off. Such peeling can contribute to noise reduction.

In addition, when the electrodeposited metal is discharged downward, it is received between the pinch rollers of the pinch roller discharging device arranged below, and when separated from the pinch roller discharging device, it is more than when the electrodeposited metal is received. Can be dropped at a sufficiently slow speed. Thereby, it can contribute to the reduction of the noise at the time of catching an electrodeposited metal below.

Furthermore, since the electrodeposited metal that is separated from the pinch roller discharge device and is discharged downward falls into the casing, it can suppress the generation of noise, and in addition, it is brought down to a posture lying sideways with the casing. It is possible to suppress the generation of noise until it is discharged with as much as possible. When the fall distance from the pinch roller to the lower casing is long, by providing multiple stages of pinch rollers, it is possible to shorten the fall distance until the bottom pinch roller leaves and is captured in the lower casing. it can.

FIG. 1 is a schematic view showing a part of an electrodeposited metal stripping apparatus according to an embodiment of the present invention. 2 (A) and 2 (B) are schematic views showing the operation of the striking device shown in FIG. 1, and FIG. 2 (A) is a positional relationship between the striking portion and the gap when the left striking device is operated. FIG. 2B is a schematic view showing the positional relationship between the hitting portion and the gap when the hitting device on the right side of the drawing is operated. FIGS. 3A and 3B are schematic views showing the operation of the flexing device shown in FIG. 1, and FIG. 3A is a flexing device when the flexing device on the left side of the drawing is operated. FIG. 3B is a schematic diagram showing the positional relationship between the flexing device and the enlarged gap when the right flexing device is operated. It is. 4 (A) and 4 (B) are schematic views showing the rotation operation and the downward movement operation of the wedge driving device shown in FIG. 1, and FIG. 4 (A) shows the wedge at the tip of the mouth opening portion. FIG. 4B is a schematic view showing a state in which the wedge members inserted on both sides are moved downward simultaneously. FIG. 5 is a schematic view of a lower support device of the stripping device shown in FIG. 1, pinch roller discharge devices and casings arranged in two stages on the lower side, and members arranged in the periphery thereof. 6 is a top view of the pinch roller discharge device shown in FIG. FIG. 7 is a schematic view showing the pinch roller discharge device shown in FIG. 5, a casing formed on the lower side thereof, and a conveyor. FIGS. 8A and 8B are schematic side views showing the relationship between the conveyor shown in FIG. 7 and the lying casing, and FIG. 8A is a state in which the casing is tilted, FIG. ) Is a schematic side view of a state in which the casing slides after the casing is brought down. FIGS. 9A and 9B are schematic views showing an example of the operation of the left and right impact devices and the left and right flexure devices shown in FIG. FIG. 10 is a schematic top view showing an example of the layout of the factory where the stripping device shown in FIG. 1 is installed, and FIG. 10 (A) shows the operation when the electrodeposited metal is pulled up from the electrolytic cell in row A. It is a schematic top view. 10 is a schematic top view showing an example of the layout of the factory where the stripping device shown in FIG. 1 is installed, and FIG. 10B shows the operation when the electrodeposited metal is pulled up from the electrolytic cell in row B. It is a schematic top view. FIG. 11A is a cutaway perspective view of the electrode plate body constituting the cathode plate, and FIG. 11B is a modification in which a V-shaped groove is formed on the lower end surface of the electrode plate body of FIG. is there. FIG. 12 is a schematic view showing an operation of a mouth opening process of a conventional electrodeposited metal stripping apparatus. FIG. 13 is a schematic diagram showing the operations of the gap expanding process and the electrodeposited metal stripping process of the conventional electrodeposited metal stripping apparatus. 14A is a front view showing a conventional cathode plate in which an insulating member is embedded in the electrode plate body, and FIG. 14B is a partially enlarged sectional view of FIG. 14A. FIG. 15 is a schematic view showing a relationship between a drop after a peeling process in a conventional electrodeposited metal stripping apparatus and a guide member for receiving the electrodeposited metal.

Hereinafter, an electrodeposited metal stripping apparatus and an electrodeposited metal stripping method according to the present invention will be described with reference to the drawings.
FIG. 1 is a schematic view showing the configuration of the upper side of an electrodeposited metal stripping apparatus according to an embodiment of the present invention, and stripping is performed by the apparatus configuration on the upper side.

In the electrodeposited metal stripping apparatus 1, each component is substantially symmetrical on the left and right, so that the element on one side (right side) is similar to the case of the cathode plate 2 shown in FIG. 11. In the description, “a” is appended to the reference numeral, and “b” is appended to the other side (left side) element. In particular, when there is no need to distinguish between left and right, it may be described without a and b.

In this stripping device 1, an upper support device 22 for supporting the hanger bar 4 of the cathode plate 2 in the horizontal direction is provided above the frame bases 21a and 21b. The upper support device 22 includes one upper support device 22a and the other upper support device 22b.

Lower support devices 24a and 24b for supporting the lower end of the electrode plate body 6 of the cathode plate 2 are provided on the lower side of the frame bases 21a and 21b.
As described above, in the stripping device 1 of the present embodiment, the upper support device 22 and the lower support device 24 support the upper and lower ends of the cathode plate 2, respectively, and the thickness direction when the cathode plate 2 is suspended. Can be prevented from shaking.

Further, a striking device 25 that forms a gap (opens) with respect to the cathode plate 2 is provided between the upper support device 22 and the lower support device 24. A flexing device 26 that flexes the cathode plate 2 is provided below the striking device 25.

In the present specification, “blow” refers to an operation of quickly applying a strong impact to the cathode plate 2. As a result, a gap S is formed in the upper joint portion 27 between the electrodeposited metal 10 and the electrode plate body 6. When a strong impact is applied to one side by the impact devices 25a and 25b as described above, a gap S is formed on the same side as the side to which the force is applied, as shown in the schematic diagrams of FIGS. . There may be a case where gaps S and S are formed on both sides by one stroke.

On the other hand, in the present specification, “flexing” means that the cathode plate 2 is slowly applied with a pressing force weaker than the striking device 25 over substantially the entire length of the cathode plate 2 in the width direction (horizontal direction). This refers to the operation of bending the plate 2. By such flexing, the gap S by the hitting device 25 can be further widened.

According to such a flexing device 26, since the cathode plate 2 is greatly curved so as to draw an arc on both the upper and lower sides with the pressing portion as a fulcrum, as shown in FIGS. The gap S on the opposite side to the done side can be enlarged. At this time, the electrode plate body 6 is not permanently deformed to be unrecoverable.

As described above, in the electrodeposited metal stripping device 1 of this embodiment, first, the impact device 25 opens the mouth, and then the flexing device 26 reliably expands the gap. In this case, since the stripping device 1 of this embodiment includes both the striking device 25 and the flexing device 26, the number of hits by the striking device 25 that generates a large noise can be reduced as much as possible. . Even if the size of the mouth opening by the striking device 25 is small, the flexure device 26 can sufficiently expand the gap S.

As a configuration of the electrodeposited metal stripping device 1 of this embodiment, a wedge driving device 28 is provided immediately below the upper support device 22 as shown in FIG.
The wedge driving devices 28a and 28b are also supported by the frame mounts 21a and 21b in the same manner as the striking device 25 and the flexing device 26.

The wedge driving devices 28a and 28b have plate- like wedge members 29a and 29b that can be rotated with respect to the cathode plate 2 at their tip portions. The wedge members 29a and 29b have substantially the same length as the cathode plate 2 (length extending in the horizontal direction of the cathode plate 2) so as to be inserted into the entire gap S formed by opening. In addition, in FIG. 1, the wedge members 29 a and 29 b have a length in the vertical direction that is shown in a cross section so that when the wedge members 29 a and 29 b are inserted into the gap S from above, the wedge members 29 a and 29 b do not come out of the gap S.

The wedge driving devices 28a and 28b are adjusted in position so that the wedge member 29b at the distal end can be easily inserted into the corresponding gap S as in the wedge driving device 28b shown in FIG. It rotates with the rotating shaft 30b as a fulcrum.

Further, as shown in FIG. 4B, the pair of wedge driving devices 28a and 28b can be moved up and down to separate the electrodeposited metals 10a and 10b, and the movement in the up and down direction can be performed simultaneously on the left and right. It is set to be done.

Furthermore, in the peeling device 1 of the present embodiment, as shown in FIG. 5, a hook-shaped guide member 36 having an upper surface and a lower surface opened is disposed below the lower support device 24. In addition, pinch roller discharge devices 37A and 37B are arranged below.

It should be noted that at least one pinch roller discharge device 37A, 37B may be installed, but it can be arranged in two upper and lower stages as in this embodiment, or three or more stages not shown.
If the pinch roller discharge devices 37A and 37B are arranged in two upper and lower stages or three or more stages (not shown) as shown in FIG. 5, they will fall without touching anything between the guide member 36 and the casing 38. The falling distance until it leaves the lowermost pinch roller and is captured in the lower casing can be shortened.

The guide member 36 is an intermediate member provided for capturing the electrodeposited metal 10 falling from the lower support device 24 from the lower end portion and sending the electrodeposited metal 10 further downward. Further, since the width of the inlet side opening 34 of the guide member 36 is wider than the width of the outlet side opening 35, the electrodeposited metal 10 can be easily captured, and the discharge position can always be set at substantially the same position during delivery. Further, a pair of side walls 36 a and 36 b are provided between the inlet side opening 34 and the outlet side opening 35 to prevent the electrodeposited metal 10 from falling down.

For example, in the pinch roller discharge devices 37A and 37B, as shown in FIG. 6, a plurality of rollers 32a and 32b are alternately arranged at predetermined intervals on the peripheral surfaces of the rotating shafts 33a and 33b.

Further, although the rotation shafts 33a and 33b are defined at the closest position, the rotation shafts 33a and 33b are arranged to be movable as shown by arrows in FIG. . Further, an urging means such as a spring is interposed between the rotating shafts 33a and 33b. Even if the rotating shafts 33a and 33b move away from each other, the urging force of the urging means tries to return to the closest position. To do.

Therefore, in the pinch roller discharge devices 37A and 37B, the electrodeposited metal 10 is placed between the rotating shaft 33a and the rotating shaft 33b shown in FIG. 6 from above, that is, from the direction perpendicular to the paper surface of FIG. When falling between 32a and 32b, the electrodeposited metal 10 can be received by the peripheral surfaces of the rollers 32a and 32b.
Then, the electrodeposited metal 10 that has dropped is guided downward while the rotary shafts 33a and 33b move in directions away from each other under the load of the electrodeposited metal 10. In addition, the rotation shafts 33a and 33b having a wider separation distance return to return to their original positions by a biasing means (not shown). The electrodeposited metal 10 passing between the rotating shafts 33a and 33b falls downward.

If the rotational speeds of the rotary shafts 33a and 33b of the pinch roller discharge devices 37A and 37B can be changed, the feeding speed when the electrodeposited metal 10 leaves the pinch roller discharge devices 37A and 37B can be slowed. Thereby, the electrodeposited metal 10 can be dropped slowly.

Further, in order to smoothly drop the electrodeposited metal 10, the distance between the rotary shafts 33a and 33b may be sufficiently widened when the electrodeposited metal 10 is sent out. Thus, if it sets so that the separation distance of rotating shaft 33a, 33b may be extended, it can be made to fall smoothly in the aspect close | similar to natural fall.

As in this embodiment, the dropping speed of the electrodeposited metal 10 can be adjusted by providing the pinch roller discharge devices 37A and 37B below the lower support device 24. Needless to say, the drop speed can be adjusted by any one pinch roller discharge device without providing two stages.

Further, in the stripping device 1 of the present embodiment, a casing 38 formed with at least an upper opening is installed below the lowermost pinch roller discharge device 37B, as shown in FIGS. . As described above, when the fall distance from one pinch roller discharge device 37 to the casing 38 is long, if the pinch roller discharge device 37 is provided in a plurality of stages separated by a predetermined distance in the vertical direction, the lowermost step It is possible to shorten the fall distance until the pinch roller is separated and caught in the lower casing 38. The casing 38 is, for example, for receiving the electrodeposited metal 10 falling through the pinch roller discharge device 37 further downward, and the casing 38 is in a standing posture shown by a solid line in FIG. From the horizontal position indicated by the two-dot chain line, or vice versa, it can be changed by a support device such as a cylinder (not shown). In addition, a shock absorbing material 40 for absorbing impact force is laid at least at the bottom of the casing 38. The shock absorbing material 40 absorbs the shock force and reduces the generation of impact sound.

Such a casing 38 receives the electrodeposited metal 10 falling from above in an upright posture shown by a solid line in FIG. 5, and has an electrodeposited metal 10 in a lying posture shown by a two-dot chain line in FIG. 7. Can be sent out.

In the present embodiment, the electrodeposited metal 10 can be changed to a lying posture with the casing 38 or the electrodeposited metal 10 can be taken out from the lying casing 38. It can be transferred with the posture.

In addition, taking out the electrodeposited metal 10 from the casing 38 can be performed as follows, for example.
That is, as shown in FIGS. 8A and 8B, the opening 39 is formed on one side of the casing 38, and the side 39a of the opening 39 is slidable. Further, the width of the conveyor 41 is set shorter than the width of the opening 39. In this way, as shown in FIG. 8 (B), the sides 38a, 39a of the casing 38 are held by the conveyor 41, which is a lower receiving member, and then slide, so that the electrodeposited metal 10 is lowered. It is possible to transfer the electrodeposited metal 10 that has fallen onto the transport conveyor 41 and transferred onto the transport conveyor 41.

Thus, the method for transferring the electrodeposited metal 10 from the casing 38 to the transport conveyor 41 is not limited to the modes shown in FIGS. 8A and 8B, and various modes can be adopted.
Below, operation | movement of the peeling apparatus 1 which concerns on one Example of this invention comprised as mentioned above is demonstrated.

In the present invention, the cathode plate 2 in which the electrodeposited metals 10a and 10b are electrodeposited on both sides of the electrode plate body 6 is suspended in the vertical direction by a transfer device such as an overhead crane (not shown) by electrolytic refining of zinc. In this state, it is conveyed to the carry-in line 60 in FIG. Next, the robot 50 carries it into the stripping device 1 of the present invention shown in FIG.

The cathode plate 2 carried into the stripping device 1 is supported on the hanger bar 4 of the cathode plate 2 by the upper support device 22 provided above the frame bases 21a and 21b.
Next, the lower end portion of the cathode plate 2 is supported by the lower support device 24.

Thus, the posture of the cathode plate 2 is maintained by the upper support device 22 and the lower support device 24.
From this posture, the electrodeposited metal 10 is first opened by the impacting device 25, then the gap is expanded by the flexing device 26, and finally the peeling is performed by the wedge driving device 28.

Hereinafter, a state in which the cathode plate 2 is suspended by the upper support device 22 and the lower support device 24 will be referred to as an initial posture, and processes from the initial posture state to peeling will be briefly described. However, the steps up to this peeling are not limited to the following modes.

In the present embodiment, the order of the left and right that operate first is not limited, but the following description will be made assuming that the left side is preferentially performed.
That is,
1) First, impact is performed by the left impact device 25b, thereby forming a gap S on the left side (FIG. 2A). Thereafter, the right impact device 25a is retracted to a position away from the cathode plate 2.

2) A strike is performed by the right strike device 25a, thereby forming a gap S on the right side (FIG. 2B). Thereafter, the right impact device 25a is retracted to a position away from the cathode plate 2.

3) Flexing is performed by the left flexing device 26b, and in particular, the gap S on the opposite side (right side) is enlarged (FIG. 3A).
Thereafter, the right wedge driving device 28a is rotated, and the wedge member 29a is inserted into the right gap S. After the wedge member 29a is inserted, the left flexing device 26b is retracted to a position away from the cathode plate 2.

4) Flexing is performed by the right flexing device 26a, and in particular, the gap S on the opposite side (left side) is enlarged (FIG. 3B).
Thereafter, the left wedge driving device 28b is rotated, and the wedge member 29b is inserted into the left gap S (FIG. 4A). After the wedge member 29b is inserted, the right flexing device 26a is retracted to a position away from the cathode plate 2.

5) The lower support device 24b on the left side and the lower support device 24a on the right side are simultaneously retracted to a position away from the cathode plate 2.
6) The left wedge member 29b and the right wedge member 29a are simultaneously moved downward (FIG. 4B). Stripping of the electrodeposited metal 10 is completed.

7) The electrodeposited metal 10 that has been peeled off falls into the lower casing 38.
In the present embodiment, the steps up to the peeling of the electrodeposited metal 10 are completed generally through the steps 1) to 7).

In the above-mentioned steps 3) and 4), flexing by the flexing devices 26a and 26b is alternately performed on the left and right sides to bend and contributes to the expansion of the gap S.
Further, in the above steps 3) and 4), flexing can be performed with the wedge member 29a or wedge member 29b inserted, and the wedge member 29a or wedge member 29b is retracted from the gap S, Flexing can also be performed.
However, when the insertion of the wedge members 29a and 29b into the gap S affects the flexing, it is preferable to retract the wedge members 29a and 29b from the gap S. Further, when the desired first opening of the mouth cannot be performed with one hit by the hitting device 25, the hit may be performed twice or more. However, the number of hits is preferably small from the viewpoint of noise reduction.

Further, as shown in FIG. 9A, for example, if the cathode plate 2 is bent by pushing the flexing device 26b on one side (left side) and the left side strike device 25b is struck from this state, The opening gap S can be reliably formed.
As shown in FIG. 9B, the reverse is also true.
Next, the process following the above 7) will be described.

8) The electrodeposited metal 10 separated from the electrode plate body 6 is received by the lower guide member 36 (FIG. 5).
9) From the outlet side opening 35 of the guide member 36, the electrodeposited metal 10 is sent to, for example, the pinch roller discharge device 37 (37A, 37B).
While the electrodeposited metal 10 is preferably sent at a high speed while being sent downward by the pinch roller discharge device 37A or the pinch roller discharge device 37B, the pinch roller discharge device 37A or the pinch roller discharge device 37B has a pinch roller. Before the electrodeposited metal 10 leaves, it is preferable to apply a slight brake to the electrodeposited metal 10 by sending the electrodeposited metal 10 at a low speed.

10) The electrodeposited metal 10 is discharged downward from the lowermost pinch roller discharge device 37 (in the above embodiment, the lower pinch roller discharge device 37B).
At this time, the rotational speed of the rotary shafts 33a and 33b is set to be lower than that in the case of 9).

11) The electrodeposited metal 10 discharged from the pinch roller discharge device 37 is dropped into the casing 38.
12) A support device (not shown) that supports the casing 38 in a standing position is operated to place the casing 38 in a lying position (FIG. 7). Along with this, the side 39a of the casing 38 is slid outward.

13) The electrodeposited metal 10 is dropped from the opening 39 of the casing 38 in a lying position and conveyed downstream by the conveyor 41.
Thereby, the electrodeposited metal 10 which has been peeled off is transported to a different stage.

As described above, for example, the steps 1) to 7) and 8) to 13) are sequentially performed, so that the electrodeposited metals 10a and 10b are separated from the electrode plate body 6 and the two sheets are connected (two sheets). It can be conveyed downstream as a plate-like product in a paired state) or in a state of being separated one by one (two separate states).

As described above, in the present embodiment, the impacting device 25 is struck once, for example, once per side, and then the flexing device 26 is flexed a plurality of times to peel off the electrodeposited metal 10. The electrodeposited metal 10 can be peeled off while suppressing the generation of noise as much as possible.

Further, the rotational speed of the pinch roller discharge device 37 is initially high and then reduced to discharge the electrodeposited metal 10 downward, thereby reducing the noise when the electrodeposited metal 10 falls into the casing 38 as much as possible. can do.

Furthermore, if the electrodeposited metal 10 accommodated in the casing 38 is slowly lowered from the standing position to the lying position, the noise generated when the casing 38 falls can be suppressed as much as possible. In addition, the noise generation can be suppressed as much as possible by interposing the buffer material 40 and the like in the casing 38.

Furthermore, if the distance from the pinch roller discharge device 37 to the casing 38 is set to be short, the drop distance of the electrodeposited metal 10 is shortened accordingly, so that the generation of noise can be suppressed.
In the pinch roller discharge device 37, the rotation speeds of the rotary shafts 33a and 33b may be constant.

In addition, regardless of whether or not the rotational speed of the rotating shafts 33a and 33b is changed, if the rotating shafts 33a and 33b are spread on both sides when the electrodeposited metal 10 is discharged, the electrodeposited metal 10 is discharged from the pinch roller discharging device 37. Can be easily.

The preferred embodiment of the present invention has been described above, but the present invention is not limited to this.
For example, in the above embodiment, the explanation has been made by taking electro zinc as an example. However, the electrodeposition metal stripping device and the electrodeposition metal stripping method of the present invention are also applicable to other non-ferrous metals such as copper, lead, nickel, etc. can do.

Further, the electrodeposition metal stripping device according to the present invention is configured as described above. However, the layout in the factory related to stripping has an effect on the price of the metal to be refined depending on the mode, and therefore it is wasteful. It is preferable to make the arrangement without any.

The layout around the stripping device for efficiently performing the post-electrolysis process will be described below.
10 (A) and 10 (B) are top views of the second floor portion in the factory where the stripping device 1 is installed, and FIG. 10 (A) is an electrolytic cell in row A among the two electrolytic cells. FIG. 10B shows the carry-out when the electrodeposited metal plate is lifted from the B row. FIG.

Hereinafter, description will be made with reference to FIG.
For example, in FIG. 10A, the electrodeposited metal 10 after electrolysis in row A is divided into four lines composed of a carry-in line 60, a stripping line 70, an electrode plate carry-out line 80, and an electrode plate polishing line 90. Sending in order completes one cycle.

That is, in the electrolytic factory, in order to strip the metal from the cathode plate 2 after the electrolysis, first, the cathode plate 2 is lifted from the electrolytic cell, and then the cathode plate 2 is transported toward the stripping apparatuses 1a and 1b ( Carry-in line 60).

Next, in the stripping line 70, the electrodeposited metal 10 is stripped from the cathode plate 2 by the two stripping devices 1a and 1b, and separated into the electrode plate body 6 and the electrodeposited metal 10. The stripped electrodeposited metal 10 falls downward (for example, the first floor).

After the stripping is completed, the remaining electrode plate body 6 is recovered for reuse by the electrode plate unloading line 80 or is removed from the line by detecting the electrode plate body 6 that is no longer suitable for use. Or Instead, a new electrode plate body 6 is introduced.

Then, the electrode plate body 6 collected after use is sent to the electrode plate polishing line 90, where it is polished and reused.
That is, as shown in FIG. 10A, in the carry-in line 60, the transfer carry-in devices 54a and 54b are installed linearly.

In the stripping line 70, two stripping apparatuses 1a and 1b are installed. Note that when high processing capability is not required, even one stripping device is possible.
Similarly, in the electrode plate carry-out line 80, the transfer carry-out devices 56a and 56b are installed linearly.

Further, between the carry-in line 60 and the stripping line 70 and between the stripping line 70 and the electrode plate carry-out line 80, robots 50 and 52 are installed for taking in and out the electrodeposited metal 10, respectively.

In the electrode plate polishing line 90, a polishing machine 53 is installed at the center of the polishing machine conveyor 54.
In FIG. 10 (A), arrows X, Y, and Z indicate overhead cranes, respectively, and these overhead cranes X, Y, and Z respectively extend in the left-right direction of FIG. 10 (A). It is installed so that it can move.

Below, the movement of the article | item in each line is demonstrated.
Now, the cathode plate 2 after electrodeposition pulled up from the electrolytic cell (not shown) is continuously transported toward the central portion in a posture suspended in the vertical direction by the transfer / in devices 54a and 54b. Yes.

The cathode plate 2 conveyed to the terminal end 54c (end on the center side) of the transfer carry-in device 54a is caught by the robot 50 and delivered to the stripping device 1a. Thereafter, the robot 50 is returned to its original position, catches the next cathode plate 2, and delivers it to the stripping device 1b.

The cathode plate 2 delivered to the stripping apparatus 1a is stripped of the electrodeposited metals 10a and 10b. Similarly, the cathode plate 2 delivered to the stripping device 1b is also stripped by the stripping device 1b.

When the electrodeposited metal 10 is peeled off by the stripping device 1a, the electrode plate main body 6 left on the cathode plate 2 is caught by the robot 52 and transferred to the transporting / unloading device 56b. And it is conveyed by this transfer carrying-out apparatus 56b.

Similarly, when the electrodeposited metal 10 is peeled off by the stripping device 1b, the electrode plate body 6 remaining on the cathode plate 2 is caught by the robot 52 and transferred to the transfer / unloading device 56b.
A large number of electrode plate bodies 6 are transported downstream by the transporting / unloading device 56 b and transferred to the polishing machine conveyor 54 by the overhead crane Y. Then, it is conveyed by the polishing machine conveyor 54 and reaches the polishing machine 53. Thereafter, both surfaces are polished by a polishing machine 53. The electrode plate body 6 that has been polished can be reused, and is transported out of the drawing by the overhead crane Z from the end portion 54d of the polishing machine conveyor 54. The electrode plate main body 6 carried out is reused.

On the other hand, in the stripping line 70, when the electrode plate main body 6 that has become defective due to bending or the like is found after the stripping by the stripping apparatuses 1a and 1b is completed, the robot 52 is operated. Then, the defective electrode plate body 6 is unloaded from the stripping apparatuses 1a and 1b to the transfer / unload apparatus 56a, and further discharged from the discharge end 56d of the transfer / unload apparatus 56a to the outside via the overhead crane Y. The electrode plate main body 6 which is discharged out of the figure and is insufficient is replenished from the transfer-in device 54b.

By arranging the stripping device 1 according to the present invention as described above, stripping can be efficiently performed on the second floor. The electrodeposited metal 10 as a product is supplied to the first floor.
FIG. 10A shows the processing after the electrodeposited metal plate is pulled up from the electrolytic cell of row A, but when the electrodeposited metal plate is pulled up from the electrolytic cell of row B, FIG. As in (B), the same operation as that in FIG.

The layout of the second floor in the factory is not limited to, for example, the modes shown in FIGS. 10A and 10B. However, if the layout is arranged as described above, electrodeposition from the cathode plate 2 can be performed effectively using a narrow space. The metal 10 can be efficiently peeled off, and the electrode plate body 6 can be efficiently transported.

1, 1a, 1b Electrodeposition metal stripping device 2 Cathode plate 4 Hanger bar 6 Electrode plate body 6a V-shaped groove 8 Masking 10, 10a, 10b Electrodeposition metal 21, 21a, 21b Frame mounts 22, 22a, 22b Upper support device 24, 24a, 24b Lower support device 25, 25a, 25b Impact device 26, 26a, 26b Flexing device 27 Upper joint portion 28, 28a, 28b Wedge driving device 29a, 29b Wedge member 32a, 32b Roller 33a, 33b Rotating shaft 34 Entrance side opening 35 Exit side opening 36 Guide members 36a and 36b Side walls 37A and 37B Pinch roller discharge device 38 Casing 39 Opening 40 Buffer material 41 Bear S gap

Claims (7)

1. An electrodeposited metal stripping device for stripping from the cathode plate two pairs or two separate electrodeposited metals electrodeposited on both sides of the cathode plate by electrolytic refining,
   An upper support device for supporting an upper portion of the cathode plate in a state where the cathode plate is suspended;
   A lower support device for supporting a lower portion of the cathode plate in a state where the cathode plate is suspended;
   A striking device for striking the cathode plate whose upper end and lower end are respectively supported by the upper support device and the lower support device;
   A flexing device that presses the cathode plate, the upper end portion and the lower end portion of which are respectively supported by the upper support device and the lower support device;
   The cathode plate supported by the upper support device is disposed so as to be rotatable and vertically movable, and is rotated between the cathode plate and the electrodeposited metal by rotating in a direction approaching the cathode plate. A wedge driving device for removing the electrodeposited metal from the surface of the cathode plate by inserting a wedge member into the gap and moving the wedge member downward from the inserted state;
   A pinch roller discharge device for capturing the electrodeposited metal peeled off from the surface of the cathode plate and falling from the lower support device, and discharging the captured electrodeposited metal further downward;
   A casing that is disposed below the pinch roller discharge device and is formed so that at least an upper portion is open, and can be changed from a standing posture to a lying posture, or from a lying posture to a standing posture, and
   By striking the cathode plate with the striking device, a gap is formed at the upper joint between the cathode plate and the electrodeposited metal,
   By pressing the cathode plate by the flexing device, the cathode plate and the electrodeposited metal are curved,
   By moving the wedge member of the wedge driving device into the gap and moving it downward, the electrodeposited metal is peeled off from the cathode plate, and the peeled electrodeposited metal is dropped downward and dropped. The electrodeposited metal is captured by the pinch roller discharging device, discharged from the pinch roller discharging device, the discharged electrodeposited metal is accommodated in the casing, and the electrodeposited metal accommodated in the casing is An electrodeposited metal stripping device characterized in that the casing is lying on its side.
2. The rotational speed of the pinch roller discharge device can be changed,
   2. The electrodeposited metal stripping device according to claim 1, wherein the rotational speed for discharging downward is set slower than the rotational speed for receiving the electrodeposited metal from above.
3. The pinch roller discharge device is
   It is possible to move in the direction of increasing or decreasing the distance between the pair of rollers,
   2. The electrodeposited metal stripping device according to claim 1, wherein when the electrodeposited metal is discharged downward, the distance between the pair of rollers is increased.
4. An electrodeposited metal stripping method for stripping two pairs of electrodeposited metals or two separate electrodeposited metals electrodeposited on both sides of a cathode plate by electrolytic refining,
   A mouth opening step for forming a gap in an upper joint portion between the cathode plate and the electrodeposited metal;
   A gap expanding step of bending the cathode plate to enlarge a gap between the cathode plate and the electrodeposited metal;
   A stripping step of stripping the electrodeposited metal from the cathode plate by inserting a wedge member into the gap formed between the cathode plate and the electrodeposited metal and moving it downward.
   A pinch roller discharging step of capturing the electrodeposited metal peeled off in the stripping step with a pinch roller and discharging the electrodeposited metal downward through the pinch roller;
   A casing housing step of housing the electrodeposited metal discharged in the pinch roller discharging step in a casing;
   A posture changing step of lying down the electrodeposited metal housed in the casing in the casing housing step together with the casing;
   A method for stripping an electrodeposited metal, comprising:
5. In the pinch roller discharge process,
   The method for stripping the electrodeposited metal according to claim 4, wherein the rotation speed of the pinch roller is made slower when discharging the electrodeposited metal than when capturing the electrodeposited metal.
6. In the pinch roller discharge process,
   5. The stripping of the electrodeposited metal according to claim 4, wherein when the electrodeposited metal is discharged, the distance between the pair of pinch rollers is increased when the electrodeposited metal is discharged. 6. Method.
7. In the pinch roller discharge process,
   The method for stripping an electrodeposited metal according to any one of claims 4 to 6, wherein the pinch rollers are provided in a plurality of stages in the vertical direction.

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