JPS5967386A - Trimming device for starting sheet - Google Patents

Abstract

PURPOSE:To provide a titled device which trims the four edge sides of starting sheets to be used as a cathode in electrlysis of metal with high efficiency, by feeding mother sheets to two orthogonal conveyance lines, and providing slitters to the respective lines. CONSTITUTION:Carriages 1A, 1B carrying mother sheets for starting sheets are disposed on both sides of the 1st conveyance line L. The mother sheets for the sheets are attracted by each sheet by an attraction means 12 and are carried to the 1st conveyance means 3, by which the mother sheets are fed through a guide 20 to the 1st slitter 4. The sheet is thrusted through a rotary blade 22 by roll conveyors 26, 28 and are trimmed of a pair of the right and left edge sides. The sheet is then conveyed with a roll conveyor 28 to the 2nd conveyance means 5 of the 2nd conveyance line L2 intersecting orthogonally with the line L1 and is passed through the 2nd slitter 6, by which a pair of the top and bottom side edge are trimmed. The sheet is moved with a take-out device 8 to a stacker 9. The four sides of the sheet are surely trimmed by the above-mentioned mechanism without stagnating the sheet.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for trimming a seed plate sheet used as a cathode in metal electrolysis, and more particularly to a device capable of trimming the four edges of a seed plate sheet with high efficiency.

In metal electrolysis, which is typified by 1W electrolytic refining of metals or electrowinning, electrolytic operations are widely carried out using a thin plate with the target metal thinly electrodeposited on the base plate and peeled off from the base plate as the cathode. It is well known that Such a purpose metal thin plate is called a seed plate. Taking the parallel electrolysis of copper as an example, a large number of such seed plates are charged into an electrolytic tank alternately with refined blister copper cast anodes, and as the electrolysis progresses, the copper melted from the anode is added to the cathode sum (on the plate). In order to improve productivity, the positive 4'' ljj and the M plate cathode are charged into the electrolytic cell with as small a gap as possible, and the iU M Brilliant.

However, if the rlfl distance between the IH( and the cathode is made too narrow, a short circuit will occur between the contacts I!11 of both 41f7j, and current will flow through the pads, deteriorating the solution efficiency. In particular, when the shapes of the poles are irregular, not only do they frequently come into contact, but even if they do not come into contact, there may be protrusions or bends, and the current is concentrated in one place, so there is a risk of short circuits occurring frequently during electrolysis. It is well known that it increases.

Therefore, the seed plate charged as a cathode in the power tank must have a uniform shape. However, since the board is made of plywood, it bends very easily.

In order to prevent this, striped presses, etc. are used.
This will cause problems such as bending and small protrusions in the center. can. Furthermore, since the seed plate was created by thinly electrodepositing it on a disk and peeling it off,
The edges of the seed board are jagged, the thick grass is uneven and has thin parts, and it is easy to get bumps. Such edge defects can cause short circuits. It is often considered important to create a seed plate with straight edges with few defects. Attempts have been made to do this, but the typical method is to apply an edge mark to the edge of the base plate using an insulating layer.

There are various methods of edging depending on the type of insulating material and how it is applied, but the most widely used method in Japan is to attach a hard vinyl chloride sheet. Advances in technology have made it possible to peel off a thin plate with an edge shape from the base plate.

In this way, at present, edging is performed by leaving a thin plate forming part of standard size on the base plate, and for edging, the target metal is thinly electrodeposited on the base plate, and then the 1M thin plate is peeled off from the base plate. The sheet 771 is left in its original state after being subjected to processes such as attaching a ribbon and pressing stripes to form a seed plate@electrode, which is then charged into an electrolytic cell. As technology improves, the electrolytic results of edging have improved and become stable. However, if examined in detail, there is still room for improvement in both the current efficiency and the number of short circuit occurrences, and this room for improvement becomes particularly noticeable when the current density is increased from the current level. In other words, continuous efforts are being made to improve metal electrolysis conditions, which are required to be more sophisticated, and to obtain even better electrolysis results. One of these is that the edge of a thin sheet that has been peeled off from the motherboard may appear to be straight at first glance, but if you look closely, you will find small bumps, burrs, uneven thickness, very thin parts, and cuts. As a result of the recognition that there are always a large number of defects such as these, and that these are one of the important causes of preventing improvements in electrolytic performance, the use of trimmed seed plates by trimming the edges of the seed plates has been proposed. ing. In other words, `` A thin plate slightly larger than the standard size is created on the base plate using the conventional method, and minute defects that inevitably occur on the edges are removed by rimming the edges to make it the standard size. The aim is to obtain a seed plate with a higher degree of straightness than the conventional one, and to conduct electrolysis using it as a cathode. The edges are resected over several to ten millimeters, preferably all four sides of the lamina. By this method, the current density gooA/m
”The current efficiency of copper electrolysis increased from 95% of the conventional method to 97%.
%, the number of short circuits has been reduced to approximately half that of conventional methods, and the electrolytic power has been reduced. Not only has significant improvement been achieved in terms of electrolytic operation, but also the electrolytic metal products formed on the cathode have been significantly improved. Quality will also be improved.

One of the problems encountered when implementing the above method is how to efficiently and continuously trim the four edges of a metal thin plate (hereinafter referred to as a seed plate) peeled off from a mother plate at high speed. The question is whether to do so. For example, in a copper electrolysis factory, many electrolytic cells are lined up in parallel, and each type uses dozens of front cathodes, and tens of thousands of seed plate cathodes are used every month! Therefore, a highly efficient trimming device is needed.

Thus, an object of the present invention is to reduce the four edges of a seedboard sheet, which is peeled off from the base board and is larger than the standard size, to the standard size in order to produce a square board with edges having a high degree of straightness. The present invention provides a high-efficiency seed plate rimming device for trimming.

The present invention is a seed plate sea)')! The high efficiency of the J-mining device is achieved by installing a first conveyance line and @2 conveyance line perpendicular to it, and aiming at one of the pair of opposing edges (left and right edges or upper and lower edges) of the seed plate sheet on the first conveyance line. This is accomplished by trimming to size, and then transporting the seed board sheet in its original orientation along a second transport line, where the remaining pair of edges are trimmed.

The seed plate sheet is conveyed from the first conveyance line to the second conveyance line without being substantially stagnant and without requiring an operation to change direction. A rotary slitter is installed in each of the first and second conveyance lines to reliably trim the seed plate sheet to a target size at high speed. A more reliable trimming action is provided by providing a sheet push-in roller conveyor and a sheet pull-out roller conveyor upstream and downstream of each slitter. In order to sequentially place the seed plate sheets at the entrance end of the first conveyance line, it is convenient to suction and transfer the seed plate sheets one by one using a transfer device equipped with a suction tool.

Hereinafter, specific examples of the present invention will be explained with reference to the drawings. FIG. 1 is a perspective view showing an overview of the entire device. This device has a first transport line L1 and a second transport line L2.
The two are arranged in a right-angled relationship. M
Seed plate sheets to be trimmed are stacked on carts 1-A and 1-B arranged adjacent to one conveyor fin L1, and the seed plate sheets are sequentially transferred from here by a transfer device 2. It is transferred and loaded at the entrance of the first conveying means B in the 1st N transport line L1. The seed plate sheet is conveyed by a conveying means toward the first slitting device 4, where one of the pair of upper and lower edges or the pair of left and right edges is trimmed. - The seed plate sheet with the side pairs trimmed is kept in the same direction as it is, and the second conveyance line L2 is perpendicular to the first conveyance line.
to the population of the second conveying means 5 and from there the second
is transported toward the loading device 6. Second
The pair of edges left by the slitting device @6 is To1nomink.

This completes the trimming on all sides of the seed board sheet.

Thereafter, the seed plate sheet is placed on a leveler 7 if necessary and sent via a sheet take-out device 8 to a sheet accumulating device 9. The above is the overall flow of the seed plate sheet 0 Now, each component will be explained in detail 0 As mentioned above, the seed plate sheet is made of stainless steel, titanium,
A base plate made of copper or the like is trimmed using this trimming device, leaving an electrodeposited part larger than the standard size by the amount of trimming of the edge, and after electrodepositing a thin target metal on the electrodeposited part, It was obtained by peeling off the deposited layer. In the case of producing electrolytic copper, the seed plate sheet has a thickness of about 0.4-1. A large number of seed plate sheets created in this way are placed near the first conveyance line L1 as a pile, and one by one, they are transferred to the entrance of the first conveyance means 3 consisting of a chain conveyor, for example, by an appropriate transfer device. Transferred by 2. The transfer device 2 may employ any mechanism as long as it can transfer the seed plate sheets one by one from the stack to the entrance of the conveying means 3. In order to perform trimming efficiently, it is necessary to rapidly feed the seed plate sheets one after another on the conveying means 3 at predetermined intervals. A specific example that meets these requirements is shown in the drawings.

Carts 1-A and 1-B each carry two stacks of seed plate sheets. Carts 1-A and 1-B are the first
They are disposed on both sides of the conveyance line L1 in parallel thereto, and are movable to bring each one of the seed plate stacks to the lower side of the transfer device 2.

Currently, the seed board sheet stack on the lower side of the transfer device 2 is the first one.
After being fed to the conveyance line, carts 1-A and 1-B
The stack moves forward so that the remaining waiting stack is placed under the transfer device, and the next stack of seed plate sheets is carried by a crane or the like onto the empty truck. The truck repeatedly moves forward and backward to ensure continuous supply of seed plate sheets. The transfer device 2 is horizontally suspended over the truck 1-A, the transport means 3, and the truck f-B, as its outline is shown by dotted lines in FIG. The transfer device is a transfer device 1 that suspends and supports two sets of suction tools 12 and 14.
6, and the cash exchange 16 is equipped with these two sets of suction tools 12.
and 14 are aligned directly above the carriage 1-A and the transport means 3, respectively (as seen in FIG. 2), and the right position (as seen in FIG. 2) is aligned directly above the transport means 3 and the carriage 1-n, respectively (@
2), it is reciprocally movable along the guide n15. A driving means for reciprocating motion is omitted.

The suction tool can be a vacuum suction cup or an electromagnet when working with magnetic materials. Each set has several stages of equipment necessary to lift one seed plate sheet. Four suction cups are used here (Figure 1 shows only four suction devices in each set).
The o4S suction cup is connected to an exhaust and air supply piping system through the head, so that the supply and discharge can be automatically controlled at regular intervals. By applying a vacuum, the four suction cups suction the topmost sheet from the stack of seed plate sheets on the trolley 1-A or 1-H, and then carrying it onto the conveying means 3, and by turning off the vacuum. Place it at the entrance of the conveyance means. As the seed plate sheet was successfully transferred,
The stack is supported by a piston-cylinder 18 in order to compensate for the decreasing height of the stack by raising the stack by the sheet thickness. In this case, the cylinder 1B is preferably moved up and down to raise the pile of the seed plate and immediately lower it when it makes contact with the suction tool head. Conversely, the suction tool head may be lowered. In FIG. 2, the suction tool 12 is currently suctioning a seed plate sheet from the seed plate sheet stack on the truck 1-A. The suction tool 14 is lowering the sheet previously suctioned from the truck 1-B onto the conveyance means. Next, the empty suction tool 14 moves to the dotted line position on the right and picks up the next sheet, and the suction tool 12, which has finished transporting the suction sheet from the cart 1-A, lowers it onto the conveying means 3. . In this way, each time the cash exchange moves left and right, sheets are alternately transferred from carts 1-A and 1-B onto the conveying means, so the speed is twice as fast as when the - set of suction tools reciprocates. The sheet is fed to the first conveyance line 11. In order to further increase the supply path r, two transfer devices as described in "2" may be arranged side by side to transfer two sheets at a time. In addition, a configuration may be used for agitation in which a rotary pedestal from which a plurality of suction tools are suspended is used to sequentially index the suctioned sheets onto the conveyance means.

A guide 20 is attached to the first conveyance means 3 to hold the seed plate sheet in a proper position. The conveying means can take the form of a chain conveyor, a belt conveyor, etc. Means, such as a protrusion, is also provided for engaging the trailing edge of the seed plate sheet to advance it.

The seed plate sheet conveyed by the first conveying means 3 is
The slitting device 4 trims either the upper and lower edge pairs or the left and right edge pairs (here, the left and right edge pairs). The slitting device includes a pair of rotary blades 22 spaced apart to correspond to the target medium size. The interval between the rotary blades 22 is adjustable. Preferably, the rotary blade 2
No. 10-La conveyor 2 for pushing upstream and downstream of 2
4 and a 20th drawer conveyor 26 are installed. These first and twentieth-la conveyors 24 and 26
cooperate to push the sheet sent from the conveying means through the rotary blade 22.

In order to prevent the sheet from being damaged, it is preferable that the sheet be pushed forward by the roller conveyor 24, 26 at a speed greater than the transport speed of the transport means 5. Roller conveyor 24, 26
Push the sheet through the rotating blade! At the same time as you close it, it supports it and the seat is smooth Suni 9J 1!7
to help people do what they do. The sheet pulled out from the roller conveyor 26 further passes through the exit roller conveyor 28 to the second conveyor.
F.? It is sent to the population of the second conveying means 5 of J sending line L2.

Since the second conveyance line is perpendicular to the first conveyance line,
By transporting the entire seed plate sheet from the first transport line in the same orientation as received by the second transport means 5 to the second slitting device R6, it is possible to trim the remaining edge pairs (here - upper and lower edges). The second conveying means 5 is constructed of a chain conveyor or the like like the first one.
Since the slitting device also has the same structure as the previous one, d, q, and d are omitted.

If necessary, the seed plate sheet whose four sides have been trimmed is flattened by a leveler 7 having a number of pairs of upper and lower rollers.

Finally, the seed plate sheet is collected from the second conveyance line and sent to the next process, such as ribbon attachment. As a collection device, here, a belt conveyor type sheet take-out device 8 is used.
A sheet stacking device 9 for stacking sheets is shown. The sheet accumulating device 9 is supported by a piston-cylinder and lowers a little bit each time it receives a sheet to enable stacking of the sheets. As the recovery device, a separate conveyor belt or chain belt may be used to transport the material to the next process, or equipment that operates in a manner opposite to that of the transfer device 2 described above may be provided.

In this way, this trimming device can trim the seed plate sheet by
E< Next, it is possible to trim fontically. The seed plate sheets fed in one after another undergo trimming on all four sides with virtually no stagnation.

Therefore, it is extremely suitable for handling electrolyte plate sheets that require detailed treatment. Minimum number of workers
Tesumu. Therefore, it is extremely useful for carrying out the electrolytic method using the trimming seed plate mentioned at the beginning.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an outline of the sheet trimming device of the present invention, and FIG. 2 is an explanatory view showing a part of the cart and transfer device at the entrance of the first conveyance line. Ll: First transport line L2: Second i transport line 1-A, 1-13: Cart 2: Transfer device 3: First transport means 4: First slitting device 5: Second transport means 6: Second slitting device 7: Leveler 8: Sheet take-out device 9: Sheet accumulating device 12.14: Suction tool 16: Pulling table 15: Guide rod 18: Lifting cylinder 20 guide 22: Blade 24: 10th la conveyor for pushing 26: Pulling No. 20-La Conveyor 28 for L15 Roller Conveyor 1'・:・1 Continued from page 1 ■Applicant Nikko Engineering Co., Ltd. 4-1-40 Toranomon, Minato-ku, Tokyo

Claims (1)

[Scope of Claims] 1) (a) A first conveyance line for trimming one of the pair of upper and lower edges or the pair of left and right edges of a seed plate sheet, the untrimmed seed plate sheet being transferred to the entrance of the first conveyance line. a device for sequentially transferring the untrimmed seed plate sheets to the first conveyance line, a first conveyance means for moving the transferred untrimmed seed plate sheets along a first conveyance line, and a first conveyance means for moving the untrimmed seed plate sheets transferred by the first conveyance means. a first slitting device including a first slitting device equipped with a pair of left and right upper and lower rotary blades that are moved at intervals determined by the target length of the one pair of edges;
and (tj) a second feed line arranged perpendicularly to the first conveying line and for trimming the other pair of edges of the seed plate sheet, the first slitting ink device 9J thus trimming the other pair of edges. an aS that receives the trimmed seed plate sheet and conveys it along the second conveyance line;
a second slitting device comprising: a second conveying means; and a pair of left and right upper and lower rotary blades installed at a distance set to the target length of the other pair of edges of the seed plate sheet conveyed by the second conveying means; A seed plate drilling device including a second conveying line including a second conveying line. 2) The transfer device attaches the suction tool that adsorbs the seed plate sheet to fll#
The device according to claim 1, box q. 3) Each of the first and second slitting devices is provided with a pair of upper and lower 10th-layer conveyors for pushing seed plate sheets upstream of the blade, and a pair of upper and lower 20-layer conveyors for pulling out seed plate sheets on the downstream side. An apparatus according to claim 1 comprising: 4) 1st and 21st ff - The device described in item 1 above, where the feed speed of the conveyor is higher than the feed speed of the conveying means. A first conveyor line for trimming the left and right edges of the needle or the right and left edges, and the right and left edges, the edge and the pick-up. seed plate sheet support means disposed and supporting at least one seed plate sheet stack, and a carrier positioned horizontally across the first conveying line entrance and both side seed plate sheet support means, Two sets of suction devices are provided so that the seed plate sheets can be alternately transferred from the stack of seed plate sheets arranged on both sides of the first conveyance line to the entrance of the first conveyance line, and the first set of suction devices A carrier on which, when suctioning the seed plate sheets from the slightly stacked body on one side, 112 sets of suction tools place the seed plate sheets previously sucked from the stacked body on the opposite side at the entrance of the first conveyance line; A first conveying means for moving the transferred untrimmed seed plate sheet along the first conveyance line, and a target length of the one pair of edges of the untrimmed seed plate sheet conveyed by the first conveying means. and (b) a first slitting device having a pair of blades installed with a set interval therebetween, and (b) the other of the seed plate sheets arranged perpendicularly to the first conveying line. a second conveying line for trimming the pair of edges, a second conveying means for receiving the seed plate sheet with one pair of edges trimmed by the first slitting device and conveying it along the second TA feeding line;
a second slitting device comprising a pair of blades installed at a distance set to a target length of the other pair of edges of the seed plate sheet conveyed by the second conveyance means;
A seed plate sheet trimming device that includes a conveyance line.