EP1190638A2 - Verfahren zur Herstellung mehrteiliger Münzen - Google Patents
Verfahren zur Herstellung mehrteiliger Münzen Download PDFInfo
- Publication number
- EP1190638A2 EP1190638A2 EP01121343A EP01121343A EP1190638A2 EP 1190638 A2 EP1190638 A2 EP 1190638A2 EP 01121343 A EP01121343 A EP 01121343A EP 01121343 A EP01121343 A EP 01121343A EP 1190638 A2 EP1190638 A2 EP 1190638A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- blank
- blanks
- coin
- stapling
- coins
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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Classifications
-
- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
- A44C21/00—Coins; Emergency money; Beer or gambling coins or tokens, or the like
Definitions
- the invention relates to a method and an apparatus for making coins from multiple Parts are assembled.
- bicolor coins in use the manufacture of several blanks becomes.
- typical bicolor coins have an annular shape outer part with a disc-shaped inner part is embossed.
- the production of such coins is complex.
- the handling is still unconnected blanks for the bicolor coin not easy or at least requires additional Expenditure. This is especially the case when joined blanks to be sorted after joining.
- the blanks have to then, after joining, be pre-embossed, which one requires a lot of equipment.
- a stapled or welded Coin blank can be used for further processing in the Essentially like a conventional pre-embossed coin blank be subjected.
- the relative position of the partial blanks to each other is fixed.
- By welding or stapling received a coin blank that is resilient to a limited extent occurring mechanical loads has grown.
- sorting machines Go through transport routes or other intermediate processes. The actual connection between the partial blanks takes place in the subsequent stamping process. there it is both possible that the weld will exist remains, as well as this, if only for the interim Stapling served, opens again.
- the welding or tacking points can be point or line-shaped his. It becomes an embodiment of the method and preferred the device in which only a single weld spot as a weld or tack serves. Such a welding spot can be done in a very short time be generated and its creation does not require that Relative movement between light beam and workpiece.
- the laser head can therefore be stored at rest, although very high throughputs of up to 700 blanks / min can.
- the welding process is preferably a laser welding process, in principle also others Welding processes (arc welding, hydrogen flame etc.) can be used.
- the welding process can also be carried out with a Filler metal are carried out. Preferably melt Areas of the two partial blanks. If necessary, however, the connection can also be made with a low melting point Filler metal to retain the character of a solder joint.
- the blanks can be in one or more places are welded together. It is also if necessary possible, the blanks on their entire contact surfaces to weld together. However, this is something more time-consuming, but can have advantages in special cases.
- One of the main advantages of the method according to the invention consists in the improved and simplified Handling the blanks. This can be done after merging and stapling in orderly or unordered intermediate storage become. You can choose between larger stocks can be transported to different processing stations. Equipment for further processing can essentially trained as devices for one-piece blanks his.
- the laser can e.g. serve a label, e.g. an edge label to attach the blanks in the subsequent stamping process preserved. Unlike when embossing labels becomes from the wells to be produced no material ejected or displaced. So leave by laser marking the blanks before embossing produce better coin qualities.
- the coin is preferably set in a defined rotation. A rotating device can be provided for this purpose. This applies in particular to the inscription on the edge of the coin. Alternatively, the laser beam can be used accordingly Circle around the blank.
- Figure 1 is the production of coins from joined Blanks schematically by means of a manufacturing device 1 illustrated.
- the manufacturing facility 1 has a first memory 2, in the annular Blanks 3 are kept ready.
- One to the manufacturing facility 1 belonging plant for the production of the ring-shaped Blanks 3 is arranged in front of the store 2, but not further illustrated.
- the memory 2 can through a conveyor line, a storage volume or a Be formed camp.
- Another memory 4 the same designed as a conveyor line, as a storage volume or storage can be used to keep disc-shaped Blanks 5 with the annular blanks 3 too a coin blank 6 are to be assembled, the total is disc-shaped.
- the memory 4 is a system for Production of the blanks 5 upstream.
- the coin blank 6 consists of exactly one ring Blank 3 and exactly one disk-shaped blank 5.
- the production device 1 also includes one the stores 2, 4 downstream joining station 7, with the stores 2, 4 connected via conveyors 8, 9 is.
- the joining station 7 is shown schematically in FIG exemplified. It has a conveyor trough 11 on which the annular blanks 3 in one leads an arrow 12 designated direction. To do so the conveyor trough 11 has two lateral boundaries 14, 15 which extend parallel to each other at a distance and their distance from each other essentially the diameter of the annular blank 3 corresponds. This slides on a floor 16 that extends between the boundaries 14, 15 extends. Above the conveyor trough 11 a tubular feed member 17 arranged to the disc-shaped blanks 5 in an arrow 18 direction indicated. For this purpose, the feed element 17 a channel 19, the middle above the conveyor trough 11 opens and its diameter with the Diameter of the disk-shaped blanks 5 essentially matches.
- a welding unit 21 Downstream, i.e. with respect to arrow 12 on the Following feed element 17 is a welding unit 21 arranged, which in the present embodiment as Laser welding unit is formed. Heard accordingly to it a laser head 22, the beam exit window of which the conveyor trough 11 has. The laser head 22 is held that an emerging focused light beam 23 meets the inserted coin blanks 6. His focus is 24 directed at a point on the parting line between the blank 5 and the blank 3 is present.
- the welding unit 21 and the joining station 7 in immediate succession in be arranged in a device.
- the Joining station 7 and the welding unit 21 as separate Blocks shown in succession.
- You can by a conveyor 25 (Fig. 1) linked together be, with this conveyor 25 then formed is that they have the joined blanks 3, 5 in the joining position holds and transports.
- the conveyor 25 works preferably step by step to the blank 5 and to stop the blank 3 briefly, whereby in this holding position the welding process takes place.
- the blanks 3, 5 in to carry a continuous flow the Laser head 22 is then synchronized with blanks 3, 5 is carried along. This can be done by camera recording of the blanks 3, 5, in particular a camera capture of their Contour.
- the possible motion detection the blanks 3, 5 can be used to readjust the laser head 22 are used, which then each with two blanks 3, 5 runs along and after the welding process to the jumps back next pair of blanks.
- the coin blanks delivered by the welding unit 21 6, as indicated in FIG. 1, in another Storage 26 are temporarily stored before they have a corresponding conveyor device 27 of a coin press 28 be fed.
- the coin press 28 can be an independent one separate machine. However, it is also possible, all components of the production facility 1 possibly with the storage 2, 4, 26 omitted in one machine to realize.
- a sorting device can be provided. in the In the simplest case, this distinguishes the coin blanks according to simple criteria, e.g. their dimensions or their weight.
- the laser head 22 generates in the present embodiment exactly one focus 24. It can if necessary however, several focusing optics are also used that set several welding points at the same time. If necessary. you can use a beam splitter from a laser beam source be supplied with light energy. By The welding process can save on positioning times be accelerated.
- the welding process can be a real welding process be carried out in which the blanks 3, 5 in the area of the spot weld. However, this is not absolutely necessary in every case.
- By melting one of the Blanks 3, 5 or both blanks 3, 5 can thus at least one of the two blanks 3, 5 a melting range be trained who after solidification overlaps the other blank so that it is positive is held. This forms one on the melted Blank of existing material drops to a certain extent Part of a positive clamp for the other blank. This means that materials that cannot be welded to one another, like steel and aluminum, stapled together become.
- the manufacturing facility 1 described so far works as follows:
- the stores 2, 4 hold a certain supply of blanks 3, 5 ready. As illustrated in FIG. 2, these are the joining station 7 supplied. To do this, the blanks 3 gradually butting against each other in the conveyor trough 11 so that there is always exactly one blank 3 stands under the feed element 17 so that the central opening of the annular blank 3 sufficient exactly aligned with channel 19. At that moment it falls a disc-shaped blank 5 under the effect of its own weight and the weight of the stack on it disc-shaped blanks 5 in the opening of the blank 3 and sits in this. At high clock speeds to be able to achieve the blanks 5 by means of a sliding device from the filling pipe (feed element 17) down into the openings of the blanks 3 can be pushed out. This can be done, for example, by pressurization the blanks 5 by means of a compression spring, one Spring pawl or by pneumatic pressure.
- the thickness of the disc-shaped blanks 5 is preferred not less than the thickness of the disc-shaped Blanks 3 - possibly a little larger. This can the one now standing underneath the feed element 17 Blank to be pushed on without going through stack of blanks 5 weighing him down from being prevented. As soon as the next blank 3 with its central opening has reached channel 19 again, the falls next disc-shaped blank 5 in the next blank Third
- the coin blanks 6 consisting of the blanks 3, 5 moved gradually until it is below the laser head 22nd reach. This is positioned so that the focus is 24 its light beam 23 the parting line between the blanks 3, 5 hits.
- the laser head 22 is preferably adjustable stored, but kept stationary during use. He will as soon as the appropriate facility correct position of the coin blank 6 is detected, short controlled so that in a welding time that clearly is less than a second and also less than 1/10 Second, one or more laser welding spots 29 on the Focus 24 arises. This laser welding spot is now fixed the blanks 3, 5 against each other. Figure 3 illustrates this. In principle, a single welding spot 29 is sufficient.
- Figure 4 illustrates the stapling of the Blanks 3, 5 by means of the welding spot 29.
- This sits directly on the parting line 30, in which the outer wall of the blank 5 touches the inner wall of the blank 3, who sits in the blank 5 with the game.
- the Spot 29 only reaches a fraction of the depth the parting line 30.
- the melted area of the Weld spot 29 is thus significantly thinner than the height of the coin blank 6, preferably less than a tenth the same. In particular, it is chosen so small that no material changes affecting the embossed image arise.
- a welding spot 29 can be on be attached to both sides of the coin blank 6. This For example, with two laser heads, one of which is from above and the other from below onto the coin blank 6 meets.
- the welding spots can be diametrically opposed to one another opposite points of the coin blank 6 attached what is considered beneficial.
- the inserted coin blank 6 is its simplest Form from two blanks 3, 5. However, it can also, as indicated in Figure 5, composed of several blanks 3, 5, 31 his.
- the annular blank 3 a recess in which a third blank 31 sits.
- the Blanks 3, 5, 31 serve one or more Spot welds 29, 29a or alternatively a spot weld 29b, which is arranged at a location where all three Butt blanks 3, 5, 31 together.
- the blanks are connected to each other in the subsequent minting process in the coin press 28.
- Alternative the procedure can also be carried out that between the blanks 3, 5 and 3, 5, 31 full-fledged Welds are generated at the following The embossing process is retained.
- the coin blank 6 can alternatively can also be composed of several rings, which allows particularly complicated coin designs.
- Figure 6 illustrates a detail of a possible embodiment.
- the blanks 3, 5 are on their inner or Outside edges each provided with a chamfer 33, 34.
- the Chamfers 33, 34 delimit an annular groove.
- the Weld spot 29 is recessed in the groove.
- the groove is closed during the subsequent embossing process and the The weld becomes invisible. This also applies if the Spot 29 in another recess or on a Place that is covered after embossing is.
- A is often used to manufacture bimetal coins Core inserted in a ring and these are then put together pressed and embossed if necessary. Even if the core and the ring should only be joined, but the embossing somewhere else is for temporary fixation an embossing machine with a relatively high apparatus Effort required.
- the invention remedies here by one or more laser welding spots in the pre-cutting process or even a solid seam. The The aim of this connection is initially only the core and the Keep the ring together until after a sorting process be separated into the embossing press. Become the cores only dotted in the rings can be very high Cycle rates of over 700 pieces / min can be achieved. The Laser head does not have to be moved.
- the laser head 22 or further laser devices fine pre-structuring of the Surface, e.g. Engravings, local orders of materials (Build-up welding) before the stamping process the coin, e.g. to make it more counterfeit-proof.
Landscapes
- Laser Beam Processing (AREA)
- Adornments (AREA)
Abstract
Description
Claims (12)
- Verfahren zur Herstellung von aus mehreren Teilen bestehenden Münzen, insbesondere Bicolor-Münzen,mit einem Verfahrensschritt, in dem erste Rohlinge bereitgestellt werden,mit einem Verfahrensschritt, in dem zweite Rohlinge bereitgestellt werden,mit einem Verfahrensschritt, in dem fortlaufend jeweils ein erster Rohling und ein zweiter Rohling zusammengebracht werden, derart, dass die beiden Rohlinge gemeinsam einen gefügten Rohling bilden,mit einem Verfahrensschritt, in dem der erste Rohling und der zweite Rohling zur Sicherstellung der weiteren gemeinsamen Handhabung miteinander in einem Heftprozess wenigstens lokal miteinander zu einem kombinierten Rohling verbunden werden, undmit einem Verfahrensschritt, in dem der kombinierte Rohling in einem Prägevorgang zu einer Münze umgeformt wird, wobei der von dem ersten Rohling gebildete Teil der Münze und der von dem zweiten Rohling gebildete Teil der Münze miteinander fest verbunden werden.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die ersten Rohlinge und die zweiten Rohlinge jeweils in Speichereinrichtungen zwischengespeichert werden und einzeln in einer Fügeeinrichtung zusammengeführt werden.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die kombinierten Rohlinge nach dem Fügeprozess und dem Heftprozess einem Zwischenspeicher zugeführt werden.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass der Heftprozess ein Laserschweißprozess oder ein Lötprozess ist.
- Verfahren nach Anspruch 4, dadurch gekennzeichnet, dass das Laserschweißen ohne Zusatzwerkstoff durchgeführt wird.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass in dem Heftprozess sowohl die Rohlinge als auch eine Hefteinrichtung unbewegt sind, so dass ein punkt-oder fleckförmiger Heftbereich erzeugt wird.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Rohlinge nur an einer einzigen Stelle miteinander verbunden werden.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Rohlinge an mehreren Stellen miteinander verbunden werden.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass der erste Rohling eine Ausnehmung aufweist und dass der zweite Rohling eine der Ausnehmung entsprechende Kontur aufweist.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass der erste Rohling ein ringförmiger Rohling mit einer zentralen Öffnung und der zweite Rohling ein scheibenförmiger Rohling ist, dessen Durchmesser dem Durchmesser der zentralen Öffnung des ringförmigen Rohlings entspricht.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass bei dem Heftprozess einer der miteinander zu heftenden Rohlinge so angeschmolzen wird, dass zwischen den beiden Rohlingen ein Formschluss entsteht.
- Vorrichtung zur Durchführung des Verfahrens nach einem der vorstehenden Ansprüche.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2000144669 DE10044669A1 (de) | 2000-09-09 | 2000-09-09 | Verfahren zur Herstellung mehrteiliger Münzen |
DE10044669 | 2000-09-09 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1190638A2 true EP1190638A2 (de) | 2002-03-27 |
EP1190638A3 EP1190638A3 (de) | 2004-09-08 |
Family
ID=7655662
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01121343A Withdrawn EP1190638A3 (de) | 2000-09-09 | 2001-09-06 | Verfahren zur Herstellung mehrteiliger Münzen |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1190638A3 (de) |
DE (1) | DE10044669A1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2294882A1 (es) * | 2005-02-01 | 2008-04-01 | Compañia Europea De Cospeles, S.A. | Procedimiento de fabricacion de cospeles y cospel obtenido. |
GB2493059A (en) * | 2011-07-20 | 2013-01-23 | Royal Mint Ltd | Method and apparatus for forming bi-metallic coin blanks |
CN105452009A (zh) * | 2013-06-19 | 2016-03-30 | 许勒压力机有限责任公司 | 用于将圆片坯料芯装入到圆片坯料环中的方法和设备 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2458645A (en) * | 1947-01-07 | 1949-01-11 | Rosenberg Samuel | Imbedded metal band |
EP0312436A1 (de) * | 1987-10-12 | 1989-04-19 | Administration Des Monnaies Et Medailles | Verfahren zum Herstellen von bimetallischen Münzen und Medaillen |
EP0484813A1 (de) * | 1990-11-09 | 1992-05-13 | Deutsche Nickel Ag | Verfahren zur Herstellung von zweiteiligen Münzrohlingen und derartiger Münzrohling |
EP0564667A1 (de) * | 1992-04-02 | 1993-10-13 | Krupp VDM GmbH | Bimetallischer Münzrohling |
-
2000
- 2000-09-09 DE DE2000144669 patent/DE10044669A1/de not_active Ceased
-
2001
- 2001-09-06 EP EP01121343A patent/EP1190638A3/de not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2458645A (en) * | 1947-01-07 | 1949-01-11 | Rosenberg Samuel | Imbedded metal band |
EP0312436A1 (de) * | 1987-10-12 | 1989-04-19 | Administration Des Monnaies Et Medailles | Verfahren zum Herstellen von bimetallischen Münzen und Medaillen |
EP0484813A1 (de) * | 1990-11-09 | 1992-05-13 | Deutsche Nickel Ag | Verfahren zur Herstellung von zweiteiligen Münzrohlingen und derartiger Münzrohling |
EP0564667A1 (de) * | 1992-04-02 | 1993-10-13 | Krupp VDM GmbH | Bimetallischer Münzrohling |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2294882A1 (es) * | 2005-02-01 | 2008-04-01 | Compañia Europea De Cospeles, S.A. | Procedimiento de fabricacion de cospeles y cospel obtenido. |
GB2493059A (en) * | 2011-07-20 | 2013-01-23 | Royal Mint Ltd | Method and apparatus for forming bi-metallic coin blanks |
CN105452009A (zh) * | 2013-06-19 | 2016-03-30 | 许勒压力机有限责任公司 | 用于将圆片坯料芯装入到圆片坯料环中的方法和设备 |
CN105452009B (zh) * | 2013-06-19 | 2017-06-09 | 许勒压力机有限责任公司 | 用于将圆片坯料芯装入到圆片坯料环中的方法和设备 |
Also Published As
Publication number | Publication date |
---|---|
DE10044669A1 (de) | 2002-04-04 |
EP1190638A3 (de) | 2004-09-08 |
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