AU2007203088B2 - An apparatus for stripping electrodeposited metal sheets - Google Patents
An apparatus for stripping electrodeposited metal sheets Download PDFInfo
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- AU2007203088B2 AU2007203088B2 AU2007203088A AU2007203088A AU2007203088B2 AU 2007203088 B2 AU2007203088 B2 AU 2007203088B2 AU 2007203088 A AU2007203088 A AU 2007203088A AU 2007203088 A AU2007203088 A AU 2007203088A AU 2007203088 B2 AU2007203088 B2 AU 2007203088B2
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- metal sheets
- electrodeposited metal
- cathode plate
- stripping
- electrodeposited
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Description
Australian Patents Act 1990 Regulation 3.2 ORIGINAL COMPLETE SPECIFICATION STANDARD PATENT 00 00 0
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Invention Title An apparatus for stripping electrodeposited metal sheets The following statement is a full description of this invention, including the best method of performing it known to me/us:- P/00/011 5102 -1c- An Apparatus for Stripping Electrodeposited Metal Sheets 00 Technical Field 0 The present invention relates to an apparatus for stripping electrodeposited metal sheets, and more specifically is concerned with an apparatus for stripping metals electrodeposited on surfaces of a cathode plate by electro-refining.
Ci Background of the Invention Electro-refining of metal using permanent cathodes according to ISA method, for example electro-refining of copper, is performed by electrodepositing electrolytic copper to the opposite surfaces of cathode plates by immersing a plurality of cathode plates io fabricated from stainless and anode plates cast with crude copper alternately in a electrolyte cell filled with electrolyte and conducting electricity thereto. Copper electrodeposited on the cathode plates is stripped from the plates using a stripping apparatus and served as products. More specifically, as shown in FIG. 1, a cathode plate 1 is a stainless plate fitted with protectors 5 of synthetic resin on its both lateral sides while is having a crossbar 4 provided at its upper side. Said crossbar 4 is further provided with 2 windows 3,3 to which hooks of a cathode plate conveying device (not shown) are latched so as to charge, remove and convey the cathode plate to and from the electrolyte cell.
Then, the electrodeposited metal sheets 2 deposited on the surfaces of the cathode plates I are stripped by a stripping apparatus. The stripped metal sheets are served as products without further processing, or as starting sheets for further electro-refining operation.
In a conventional apparatus for stripping metal sheets, the stripping of electrodeposited metal sheets was performed in a process as explained hereinbelow. A cathode plate raised from electrolyte cell is charged to an inlet opening (so called load-in).
A charged cathode plate is loaded to a traverse conveyer by a transfer equipment after being washed in the cleaning room. Then, as shown in FIG.2. the cathode 1 plate is retained in an upright state on a base part 120 (refer to FIG.2(a)), and gaps are created in between the cathode plate 1 and the deposited metal sheets by pressing the cathode plate 1 from both lateral sides (so called flexing process) (refer to FIG. In the produced gaps, chisels 35 are inserted (refer to FIG. 2(c) and driven downward in order to strip the deposited metal sheets 2 from the cathode plate 1 (so called chiseling process), and the stripped metal sheets 2 are removed from the cathode plate 1 by bringing down the metal sheets 2 outwardly on their bottom ends which is contacting the base part 120 (so called 0 downending process) (refer to FIG. In case the deposited metal sheets 2 do not split apart and cannot be separated from the cathode plate 1, the two components are separated by performing so called "flapping", in which process the deposited metal sheets 2 are lifted up and pulled down again.
A conventional apparatus as explained above is known for example from Patent Publication No. 2001-81591 (Patent reference This type of stripping apparatus is o0 comprised of an insulated protector removing device for removing a part of a insulated protector provided on the end part of a cathode plate, chis blades for being inserted in between the electrodeposited metal sheets and the cathode plate which is retained at the set position where the removed part of the insulated protector is positioned, to separate the upper edge of the electrodeposited metal sheets from the cathode plate to form an open is state, and a plurality of vacuum suction pads for attaching on to the electrodeposited metal sheets and bringing it downward to the stripping direction. Furthermore, the chis blades are inserted in between the lateral surfaces of the cathode plate and the marginal parts of the electrodeposited metal sheets, and strip the electrodeposited metal sheets from the cathode plate with a wedge action of the wedge-like chis blades to pry open the upper edge of the electrodeposited metal sheets. Then, the further stripping of the electrodeposited metal sheets is performed by attaching a plurality of vacuum suction pads to the opened electrodeposited metal sheets and pulling them apart from the cathode plate (so-called flapping).
[Patent Reference 1] JP Patent Publication No. 2001-81591 [Patent Reference 2] JP Patent Publication No. 2005-91423 -3sHowever, in the conventional metal stripping apparatus, due to the base part on which the cathode plate is placed designed in a flat shape, when the electrodeposited metal sheets are pulled downward by downending to be stripped from the cathode plate, the maximum 00 angle of electrodeposited metal sheets in relation to cathode plate was 90". From such configuration, it was sometimes not possible to strip off the electrodeposited metal sheets completely in a single operation. In such case, it was necessary to repeat flapping once or several times more. Electrodeposited metal sheets can be stripped from the cathode plate if the flapping is repeated once or several times, but repetitive flapping means more time should be spent for the process, which subsequently leads to a decrease in hourly iu processing amount. More specifically, if the stripping of the electrodeposited metal sheets is done without flapping, it takes about 7 seconds to complete the stripping per plate.
Hence, it is possible to perform stripping of 4,000 to 5,000 plates per day in average in about 8 to 10 hours of daily operation. However, if the flapping is repeated several times per each cathode plate, since it takes about 2 seconds to perform 1 flapping in the series of in stripping operations, processing amount per day would decrease, which would further influence the operation efficiency.
Therefore, it is an object of the present invention to provide a stripping apparatus which is able to complete the series of operation of flexing, chiseling and downending for stripping the electrodeposited metal sheets from a cathode plate in a single operation without performing flapping.
Summary of the Invention In order to achieve the above object, the present invention provides an apparatus for stripping electrodeposited metal sheets from a cathode plate characterized in stripping the electrodeposited metal sheets by retaining a cathode plate with metal deposited on its surfaces by electro-refining in an upright state, creating gaps in between said cathode plate and said electrodeposited metal sheets by pressing said cathode plate from its lateral sides, stripping said electrodeposited metal sheets by inserting chisels in between the produced gaps, and pulling down the stripped electrodeposited metal sheets on their bottom ends as base point to be fully stripped, wherein a base part on which said cathode plate is mounted so being formed with protrusions on its both sides, said protrusions being arranged to contact -4 C- the surfaces of the lower sections of said stripped electrodeposited metal sheets when they are pulled down so as the upper ends of said electrodeposited metal sheets be brought down to the level lower than said protrusions, said electrodeposited metal sheets thereby 00 being separated from said cathode plate.
The angles between the cathode plate and the electrodeposited metal sheets when they are pulled down may be at least more than 900, but no more than The angles formed upon the electrodeposited metal sheets being pulled down by downending should be in a range of a minimum of 90" to a maximum of The base part may have a semi-cylindrical shape. By configuring the base part in a in semi-cylindrical shape, it becomes possible to provide a base part with protrusions on both ends.
When electro-refining is completed, the cathode plate is retained on the base pail in an upright state and stripped of electrodeposited metal sheets deposited on the surfaces from its upper edge, and the stripped metal sheets are pulled downward on their bottom ends as base point. In such process, since protrusions provided on both sides of the base part contact the surfaces of lower sections of said electrodeposited metal sheets, the upper ends of the electrodeposited metal sheets are pulled down to the level lower than the protrusions of the base part. Then the protrusions on the base part act as "levers" to lift the cathode plate and the electrodeposited metal sheets upward so as to separate the 2 o2 components easily from each other. With such configuration, since the stripping of the electrodeposited metal sheets can be completed for certain by the series of operations of flexing, chiseling and downending, it is not necessary for the flapping to be performed.
According to an apparatus for stripping electrodeposited metal sheets of the present invention, since at least the upper ends of the electrodeposited metal sheets are pulled down to the level lower than the protrusions by providing protrusions on both sides of the base part and by bringing the surfaces of the lower sections of the electrodeposited metal sheets stripped from the cathode plate into contact with said protrusions, the protrusions on both sides of the base part act as levers to lift the cathode plate and the electrodeposited metal sheets upward, and enables to strip off the electrodeposited metal sheets from the :o cathode plate for certain by a series operation of flexing, chiseling and downending without performing flapping.
c Furthermore, cathode plates stripped of electrodeposited metal sheets are repetitively used for electro-refining, so according to the stripping apparatus of the present 0 invention, since the electrodeposited metal sheets can be stripped by the series of Soperations of flexing, chiseling and downending for certain, the turnover of cathode plates would improve, which would lead to an increase in daily processing amount, and enables a production increase of over 30 tons per month at the least.
SBrief Description of the Drawings Figure 1 is a schematic perspective view of a cathode plate with metals deposited on its surfaces.
io Figure 2 is an explanatory drawing showing the stripping process in a conventional stripping apparatus.
Figure 3 is a front view of an embodiment of an apparatus for stripping electrodeposited metal sheets according to the present invention.
Figure 4 is a cross-sectional view ofA-A indicated in FIG.3.
1- Figure 5 is a cross-sectional view of B-B indicated in FIG.3.
Figure 6 is an explanatory drawing showing the stripping process in the stripping apparatus according to the present invention.
Figure 7 is a perspective view of a base part, and is a perspective view of the base part formed in a semi-cylindrical shape.
o2 Detailed Description of the Invention An apparatus for stripping the electrodeposited metal sheets according to the present invention is described in detail hereinbelow with reference to the accompanying drawings. FIG.3 is a front view of an exemplary embodiment of the metal stripping apparatus for stripping electrodeposited metal sheets according to the present invention, FIG.4 is a cross-sectional drawing of A-A indicated therein, and FIG.5 is a cross-sectional drawing of B-B similarly.
An apparatus for stripping electrodeposited metal sheets as shown in the drawings is substantially comprised to form a frame structure with 4 columns 12 provided on mounts 11 which is placed on a floor G and traverse bars 13 connecting said columns horizontally, :o and provided with a base part 20 positioned approximately at the center of the said frame, -6- C said base part 20 being configured to mount a cathode plate 1 done with electrodepositing in an upright state thereon. Furthermore, holders 30 for supporting the upper ends of the 0 electrodeposited metal sheets 2 from its lateral sides are installed on both right and left 0 sides of said base part 20. On both right and left sides of the stripping apparatus 10 shown in FIG. 4, linking parts 32 are provided with respective pivot retained to the frame while their trailing ends are connected to hydraulic cylinders 32a allowing the linking parts 32 to swing. Furthermore, as shown in FIG. 3, the stripping apparatus 10 is provided with catchers 31 for clamping a crossbar 4 from both sides. From such configuration, the cathode plate 1 can be retained securely in an upright state on the base part io As shown in FIG. 4, chisels 35 for stripping electrodepositcd metal sheets 2 from the cathode plate 1 by being inserted in between the cathode plate 1 and the electrodeposited metal sheets 2 deposited on the surfaces of the cathode plate 1 are installed above where the cathode plate 1 is arranged. The chisels 35 are formed in a wedge shape with a cross section of substantially right-angled triangle, tapered to be pointed towards the tip. The electrodeposited metal sheets 2 are stripped from the cathode plate 1 by inserting and pressing down the chisels 35 in between the electrodeposited metal sheets 2 and the cathode plate 1 so that the upper edges of the electrodeposited metal sheets 2 will open outwardly on the base part 20. Meanwhile, the chisels 35 can be moved vertically via hydraulic cylinders o2 After being washed in a cleaning room (not shown), flexing is performed to the cathode plate 1, and chiseling and downending are performed thereto after it is transferred to the stripping apparatus 10 via a traverse conveyer 38. As shown in FIG. flexing is performed by pressing the cathode plate 1 mounted on the base part 20 from both lateral sides separately, with pressing parts 36 placed respectively in right and left side of the cathode plate 1. The pressing parts 36 are operated by hydraulic cylinders (not shown) installed behind the respective pressing part. Thusly, flexing for creating gaps in between the cathode plate 1 and the electrodeposited metal sheets 2 is performed by separately pressing both lateral surfaces of the cathode plate 1 once. The cathode plate 1 done with flexing is then transferred to the stripping position on the stripping apparatus 10 via the :o traverse conveyer 38.
As shown in FIG. 4, guide plates 37c are placed on right and left sides of the c cathode plate 1 mounted on the base part 20, and arc-shaped rails 37b extending from the
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vicinity of the sides of electrodeposited metal sheets 2 are provided to the said guide plates 0 37c. On the guide plates 37c, gripping parts 37 are provided on right and left sides for Srespectively retaining the lateral surfaces of the electrodeposited metal sheets 2 stripped a from both surfaces of the cathode plate 1 by chisels 35, in order to perform downending or flapping. The gripping parts 37 are movable on the arc-shaped rails 37b extending from the vicinity of the sides of the electrodeposited metal sheets 2 by hydraulic cylinders 37a.
Furthermore, the guide plates 37c can be tilted to the direction of cathode plate 1 by hydraulic cylinders 37d installed downside.
in The stripping apparatus 10 is comprised of the above mentioned components, but the most distinctive feature of the present apparatus is the shape of the base part 20. More specifically, as shown in FIG.4, the base part 20 is provided with protrusions 21 on both sides in order to bring the surfaces of the lower sections of the electrodeposited metal sheets 2 into contact with the protrusions 21 when the electrodeposited metal sheets 2 are is stripped from the cathode plate 1 by the chisels 35 and pulled downward by the gripping parts 37, in order to bring down at least the upper ends of the electrodeposited metal sheets 2 to the level lower than the protrusions 21 thereby. Above procedures will be described in more detail with reference to FIG.6 which shows the pattern diagrams of the stripping processes of the electrodeposited metal sheets 2. First of all, as shown in FIG.6(a), a cathode plate 1 done with electro-refining and cleaning is mounted to a traverse conveyer 38 in an upright state.
The cathode plate 1 is then pressed from both sides separately on its lateral surfaces in flexing process and gaps are created in between the cathode plate 1 and the electrodeposited metal sheets 2 thereby. Upon gaps being created on the top surface by flexing, the cathode plate 1 is transferred to the stripping position on the stripping apparatus 10 by the traverse conveyer 38. Chisels 35 are then inserted to the gaps created by flexing, and by further pressing it downward, the electrodeposited metal sheets 2 are stripped so as to pry open the top edges of the metal sheets outward on its bottom end which is mounted on the base part 20 By attaching gripping parts 37 to the :o stripped electrodeposited metal sheets 2 and pulling them downward, the surfaces of the lower sections of the electrodeposited metal sheets 2 come in contact with protrusions 21 -8c, formed on both sides of the base part 20, and at least the upper ends of the electrodeposited metal sheets 2 are brought down to the level lower than the protrusions 21 thereby S(FIG6(d)). In the process, the cathode plate 1 and the electrodeposited metal sheets 2 are Slifted upward due to leverage effect of the protrusions 21 of the base part 20. With such movement, the electrodeposited metal sheets 2 can be easily separated from the cathode plate 1, and the electrodeposited metal sheets 2 can be stripped from the cathode plate 1 for Scertain by performing the series of operations of flexing, chiseling and downending, and without performing flapping.
It is preferred that an angle 0 between the cathode plate 1 and the electrodeposited o1 metal sheets 2 when the electrodeposited metal sheets 2 are brought down is at least more than 90" but no more than 95°. If the angle is below 90", the leverage effect of the protrusions provided on the base part cannot be exercised sufficiently, and if it exceeds the electrodeposited metal sheets 2 may be deformed.
Furthermore, the shape of the base part 20 can be a flat clement with spike-like 1i protrusions 21 provided on both sides as shown in FIG.7(a), but it can also have a semicylindrical shape as shown in FIG.7(b). The base part 20 with the protrusions 21 on its both sides can be easily obtained with a semi-cylindrical component. The height of the protrusions can range from 5 to 30mm, but preferred to be of about 8 to As described hereinabove, it is possible to strip the electrodeposited metal sheets 2 o2 from the cathode plate 1 for certain by the series of operations of flexing, chiseling and downending, but without performing flapping according to the apparatus for stripping electrodeposited metal sheets of the present invention. Moreover, since the time required for the cathode plate 1 to be reused in the electro-refining after being stripped of electrodeposited metal sheets 2 will be shortened, a turnover of the cathode plate 1 will improved and this will further contribute in the daily processing amount to increase.
The following numbering system is used in this specification: 1 cathode plate 2 electrodeposited metal sheet 3 window :n 4 crossbar protector -9stripping apparatus 11 mount 12 column 00 13 traverse bar 5 n 20 base part 21 protrusion holder 31 catcher 32 linking part 32a hydraulic cylinder chisel hydraulic cylinder 36 pressing part 37 gripping part 37a hydraulic cylinder 37b rail 37c guide plate 37d hydraulic cylinder 38 traverse conveyer Throughout this specification and the claims which follow, unless the context requires otherwise, the word "comprise", and variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated integer or step or group of integers or steps but not the exclusion of any other integer or step or group of integers or steps.
The reference in this specification to any prior publication (or information derived from it), or to any matter which is known, is not, and should not be taken as an acknowledgment or admission or any form of suggestion that that prior publication (or information derived from it) or known matter forms part of the common general knowledge in the field of endeavour to which this specification relates.
Claims (4)
1. An apparatus for stripping electrodeposited metal sheets from a cathode plate characterized in stripping the electrodeposited metal sheets by retaining a cathode plate 00 00 with metal deposited on its surfaces by electro-refining in an upright state, creating gaps in s between said cathode plate and said electrodeposited metal sheets by pressing said cathode plate from its lateral sides, stripping said electrodeposited metal sheets by inserting chisels in between the produced gaps, and pulling down the stripped electrodeposited metal sheets (N on their bottom ends as base point to be fully stripped, wherein a base part on which said cathode plate is mounted being formed with o1 protrusions on its both sides, said protrusions being arranged to contact the surfaces of the lower sections of said stripped electrodeposited metal sheets when they are pulled down so that at least the upper ends of said electrodeposited metal sheets be brought down to the level lower than said protrusions, said electrodeposited metal sheets thereby being separated from said cathode plate.
2. An apparatus for stripping electrodeposited metal sheets according to claim 1, wherein angles between said cathode plate and said electrodeposited metal sheets when they are pulled down are at least more than 900 but no more than
3. An apparatus for stripping electrodeposited metal sheets according to claim 1 or 2, wherein said base part has a semi-cylindrical shape.
4. An apparatus for stripping electrodeposited metal sheets from a cathode plate, substantially as hereinbefore described with reference to any one of Figures 3 to 7.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006-266326 | 2006-09-29 | ||
| JP2006266326A JP4267014B2 (en) | 2006-09-29 | 2006-09-29 | Electrodeposition metal stripping device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU2007203088A1 AU2007203088A1 (en) | 2008-04-17 |
| AU2007203088B2 true AU2007203088B2 (en) | 2009-02-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2007203088A Active AU2007203088B2 (en) | 2006-09-29 | 2007-07-02 | An apparatus for stripping electrodeposited metal sheets |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP4267014B2 (en) |
| CN (1) | CN101153404B (en) |
| AU (1) | AU2007203088B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5749657B2 (en) * | 2009-02-06 | 2015-07-15 | エクストラータ テクノロジー プロプライアタリー リミテッド | Device for stripping metal from cathode plate |
| CN101717973A (en) * | 2009-12-23 | 2010-06-02 | 江西瑞林装备技术有限公司 | Stripping device for stainless steel cathode |
| CN107604424B (en) * | 2017-08-14 | 2019-07-16 | 浙江工贸职业技术学院 | A kind of rocking equipment of electroplating device |
| CN109735875A (en) * | 2019-01-28 | 2019-05-10 | 铜陵有色金属集团股份有限公司金冠铜业分公司 | Machine for cutting charge into pieces |
| WO2022198370A1 (en) * | 2021-03-22 | 2022-09-29 | 江西瑞林装备有限公司 | Method for stripping and splitting ductile and malleable metal attached and deposited on electrolytic cathode |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1452987A (en) * | 1973-02-08 | 1976-10-20 | Wennberg O C G | Removal of electrodeposited material from edge regions of a |
| US4131531A (en) * | 1977-06-29 | 1978-12-26 | Mitsubishi Kinzoku Kabushiki Kaisha | Apparatus for stripping electrodeposited metal from cathode sheets |
| WO2005071142A1 (en) * | 2004-01-21 | 2005-08-04 | Falconbridge Limited | Method and apparatus for stripping electrodeposited metal sheets from permanent cathodes |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3953312A (en) * | 1972-04-19 | 1976-04-27 | Mitsui Mining & Smelting Co., Ltd. | Apparatus for peeling electrodeposited metal off cathode base plate |
| US4304950A (en) * | 1980-03-17 | 1981-12-08 | Uop Inc. | Hydrocarbon dehydrogenation method using a nonacidic multimetallic catalytic composite |
| CN1004710B (en) * | 1986-10-22 | 1989-07-05 | 北方工业大学 | Method and apparatus for stripping the metal layer electro-deposited on cat hod plate |
| FI982569A (en) * | 1998-11-27 | 2000-05-28 | Outokumpu Oy | Device for separating metal precipitate from cathode |
-
2006
- 2006-09-29 JP JP2006266326A patent/JP4267014B2/en active Active
-
2007
- 2007-07-02 AU AU2007203088A patent/AU2007203088B2/en active Active
- 2007-07-17 CN CN2007101368311A patent/CN101153404B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1452987A (en) * | 1973-02-08 | 1976-10-20 | Wennberg O C G | Removal of electrodeposited material from edge regions of a |
| US4131531A (en) * | 1977-06-29 | 1978-12-26 | Mitsubishi Kinzoku Kabushiki Kaisha | Apparatus for stripping electrodeposited metal from cathode sheets |
| WO2005071142A1 (en) * | 2004-01-21 | 2005-08-04 | Falconbridge Limited | Method and apparatus for stripping electrodeposited metal sheets from permanent cathodes |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2008081825A (en) | 2008-04-10 |
| CN101153404B (en) | 2010-06-16 |
| JP4267014B2 (en) | 2009-05-27 |
| CN101153404A (en) | 2008-04-02 |
| AU2007203088A1 (en) | 2008-04-17 |
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