EP0718091A1 - Presse d'estampage de monnaie - Google Patents

Presse d'estampage de monnaie Download PDF

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Publication number
EP0718091A1
EP0718091A1 EP95119429A EP95119429A EP0718091A1 EP 0718091 A1 EP0718091 A1 EP 0718091A1 EP 95119429 A EP95119429 A EP 95119429A EP 95119429 A EP95119429 A EP 95119429A EP 0718091 A1 EP0718091 A1 EP 0718091A1
Authority
EP
European Patent Office
Prior art keywords
embossing
coin
articulated
connecting rod
minting
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.)
Granted
Application number
EP95119429A
Other languages
German (de)
English (en)
Other versions
EP0718091B1 (fr
Inventor
Hein Schönau
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
L Schuler GmbH
Original Assignee
L Schuler GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by L Schuler GmbH filed Critical L Schuler GmbH
Publication of EP0718091A1 publication Critical patent/EP0718091A1/fr
Application granted granted Critical
Publication of EP0718091B1 publication Critical patent/EP0718091B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
    • B30B1/10—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by toggle mechanism
    • B30B1/14—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by toggle mechanism operated by cams, eccentrics, or cranks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
    • B30B1/10—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by toggle mechanism
    • B30B1/106—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by toggle mechanism operated by another toggle mechanism
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44B—MACHINES, APPARATUS OR TOOLS FOR ARTISTIC WORK, e.g. FOR SCULPTURING, GUILLOCHING, CARVING, BRANDING, INLAYING
    • B44B5/00—Machines or apparatus for embossing decorations or marks, e.g. embossing coins
    • B44B5/0052—Machines or apparatus for embossing decorations or marks, e.g. embossing coins by pressing
    • B44B5/0057—Machines or apparatus for embossing decorations or marks, e.g. embossing coins by pressing using more than one die assembly simultaneously

Definitions

  • the invention relates to a coin press, with a machine frame, an embossing drive for plunger and embossing die, an ejector embossing die, against which the embossing die can be pressed with the interposition of the embossing blank and to which part is yieldable, a drive for the ejector movement of the ejector embossing die and a device for feeding the Embossing blank and for removing the finished part.
  • Such a coin stamping press is known from EP-A-0 101 590.
  • the embossing drive takes place by means of a triangular lever known per se, driven by a crankshaft via a central bearing, which is articulated with its rear rocker arm bearing on a handlebar and via this on the frame side and with its front rocker arm bearing via a push rod on the tappet.
  • This oscillation system is designed such that pivot points and articulation points in their positions relative to one another enable a circular movement which is at least approximated for the push rod in its pivot point on the tappet at the time it passes through the rear dead center.
  • the arrangement mentioned makes it possible to control the linear movement of the plunger in such a way that there is sufficient time to remove a minted coin from the minting tool and insert a new coin blank between two minting processes.
  • a disadvantage of the known coin minting press is that the described embossing drive takes up a relatively large amount of space, especially when it is to be used in presses which pressures of more than 200 t should exert on the coin blank. Since these forces also act on the embossing drive, the individual components of the same must be appropriately dimensioned so that the individual components must be relatively large.
  • the present invention is therefore based on the object of eliminating the disadvantages of the prior art described, in particular providing a coin stamping press which has the lowest possible overall height and less play within the stamping drive.
  • a knee joint transmission can be controlled which, compared to the knee joint transmission of the prior art, has a significantly lower overall height, since the triangular lever used in the prior art is omitted, so that the entire embossing drive and thus also the coin embossing press itself has a lower overall height.
  • Another advantage of the coin embossing press according to the invention is the reduction in the play of the embossing drive, since it has significantly fewer joints than is the case with known coin embossing presses, so that the overall game, which is composed of the game in the individual joints, is reduced . This reduction in play is particularly noticeable with frequent load changes, as is the case with fast-running coin minting presses.
  • an eccentric shaft 3 is provided in the machine frame 1 of a coin press 2, which is driven by a motor 6 via a flywheel 4 and a belt transmission 5.
  • a connecting rod 7 is driven by the eccentric shaft 3 and is part of a coupling latching mechanism 8.
  • the connecting rod 7 is arranged largely parallel to the embossing plane of a coin (not shown).
  • the coupling ratchet mechanism 8 also has a support device, which is designed as a tab 9 in the present exemplary embodiment.
  • the tab 9 is articulated at one end to the connecting rod 7 and articulated at its other end to the machine frame 1.
  • the connecting rod 7 is eccentrically, more precisely displaced eccentrically along its longitudinal axis, placed on the eccentric shaft 3, the end of the connecting rod 7 facing away from the plate 9 being connected to a pressure plate 10 which establishes a connection between the coupling latching mechanism 8 and a knee joint mechanism 11.
  • the knee joint transmission 11 has an upper pressure plate 12 and a lower pressure plate 13, which are connected to one another at one point and are articulated together with the pressure plate 10.
  • the upper pressure plate 12 is articulated at one end to the plunger 14 of the coin press 2, the plunger 14 being linearly displaceable in a suitable plunger guide 15.
  • the other end of the lower pressure plate 13 is articulated to the machine frame 1.
  • the plunger in turn is connected to a plunger tool 16 arranged above the plunger 14, into which the coin blanks are inserted from a feed drum 17 via a feed station 18 into a turret plate 19 which is provided with a stepping gear mechanism.
  • An upper tool 20 is provided above the plunger tool 16 for simultaneously embossing the front and back of the coin.
  • FIGS. 2 to 4 show, in an enlarged representation, the combination of the coupling latching mechanism 8 and the knee joint mechanism 11 already described in connection with FIG. 1.
  • the connecting rod 7 When the eccentric shaft 3 moves, the connecting rod 7 also moves. The movement of the connecting rod 7 is transmitted here via the pressure plate 10 to the knee joint mechanism 12, more precisely to the upper pressure plate 12 and the lower pressure plate 13. All pressure plates 10, 12, 13 are in this case articulated with one end on a pin 21.
  • Another bolt 23 serves to connect the end of the upper pressure plate 12 facing away from the bolt 21 to the tappet 14, which is guided in the tappet guide 15.
  • a tool clamp 24 for a stamp 25 is provided on the plunger 14.
  • the connecting rod 7 is connected to the bracket 9 by means of a bolt 26, the bracket 9 at its end facing away from the bolt 26 by means of a further bolt 27 the machine frame 1 of the coin press is connected. If the eccentric shaft 3 is now moved, the plunger 14 moves in accordance with the movement diagram shown in FIG. 5.
  • the tappet 14 carries out an embossing stroke in a range from approximately 40 ° crank angle to approximately 320 ° crank angle.
  • the plunger 14 is raised only very slightly, so that during this time the plunger 14 with all the tools attached to it is essentially stationary and during this time from the feed drum 17 , the feed station 18 and the turret plate 19 (see FIG. 1) a new coin blank can be brought into the minting station of the coin minting press. A new stamping process can then take place.
  • FIG. 6 schematically shows the combination of the coupling latching mechanism 8 with the knee joint mechanism 11.
  • point 30 should be emphasized, namely the connection point or the joint between the pressure plate 10 and the connecting rod 7.
  • This point moves on a movement path identified by the reference numeral 31, which in part contains an arc of a circle with the radius r, the radius r having its origin in the center of the bolt 21.
  • the overall height of the entire coin press 2 can be significantly reduced in a simple manner.
  • Another advantage that results from the design described is a reduction in the eccentricity of the eccentric shaft 3, for example from 40 mm to 20 mm, so that between the motor 1 and the eccentric shaft 3 a smaller coupling compared to the prior art is installed can be, thereby reducing the manufacturing costs for the coin minting press 2.
  • the stroke of the coin minting press 2 described largely corresponds to the stroke of known coin minting presses.
  • the support device was designed as a tab 9.
  • a support device 9 to provide, for example a thrust joint.
  • the arrangement described has the advantage that fewer articulation points are contained in the main power flow of the embossing drive, that is to say from the machine frame 1 via the bolt 22 through the knee joint mechanism 11 to the plunger 14, compared to the prior art, so that a better power transmission is possible.
  • the working height of the coin stamping press can be reduced from approx. 1900 mm to approx. 1400 mm at a pressure of 300 t.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Adornments (AREA)
  • Forging (AREA)
EP95119429A 1994-12-23 1995-12-09 Presse d'estampage de monnaie Expired - Lifetime EP0718091B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4446221 1994-12-23
DE4446221A DE4446221A1 (de) 1994-12-23 1994-12-23 Münzprägepresse

Publications (2)

Publication Number Publication Date
EP0718091A1 true EP0718091A1 (fr) 1996-06-26
EP0718091B1 EP0718091B1 (fr) 2000-05-03

Family

ID=6536866

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95119429A Expired - Lifetime EP0718091B1 (fr) 1994-12-23 1995-12-09 Presse d'estampage de monnaie

Country Status (5)

Country Link
US (1) US5653141A (fr)
EP (1) EP0718091B1 (fr)
CZ (1) CZ290536B6 (fr)
DE (2) DE4446221A1 (fr)
ES (1) ES2146701T3 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6012322A (en) * 1998-03-27 2000-01-11 Aida Engineering Co., Ltd. Slide-driving device for knuckle presses
US6983635B2 (en) * 2004-05-07 2006-01-10 Rocky Rockholt Coin press
CN100528031C (zh) * 2007-11-07 2009-08-19 中国印钞造币总公司 中间带孔硬币及其类似物的压印制造装置及方法
CN202500974U (zh) * 2012-01-18 2012-10-24 柴智 一种增力装置
CN112848440B (zh) * 2020-12-22 2022-10-28 珠海格力智能装备有限公司 增力装置及定型机

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2781015A (en) * 1952-06-11 1957-02-12 Cleveland Crane Eng Draw press
US3661008A (en) * 1970-03-17 1972-05-09 Wickman Mach Tool Sales Ltd Presses
US3785282A (en) * 1970-06-10 1974-01-15 Zdarske Strojirny A Slevarny Mechanical press with toggle lever crank drive
DE2346810A1 (de) * 1973-09-18 1975-03-27 Graebener Theodor Maschfab Muenzpraegemaschine
US4270413A (en) * 1978-02-02 1981-06-02 L. Schuler Gmbh Intermittent operation arrangement in a notching machine
EP0101590A2 (fr) * 1982-08-20 1984-02-29 L. SCHULER GmbH Presse d'estampage de monnaie avec des moyens pour le guidage universel de la pièce d'estampage dans la presse

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA587093A (fr) * 1959-11-17 The Cleveland Crane And Engineering Company Presse d'etirage a double action
DE74272C (de) * R. schade in Wilmersdorf bei Berlin, Ringbahnstr. 268 Bunsenbrenner
US3456480A (en) * 1966-11-21 1969-07-22 Diamond Die & Mold Co Method and apparatus for crimping electrical connectors
SU396272A1 (ru) * 1970-07-31 1973-08-29 Экспериментальный научно исследовательский институт кузнечно прессового машиностроени Привод ползуна пресса
GB1433112A (en) * 1974-06-10 1976-04-22 Us Industries Inc Driving linkages for reciprocating the slides of mechanical presses
SU592616A1 (ru) * 1976-08-16 1978-02-15 Воронежское Специальное Конструкторское Бюро Гидравлических И Механических Прессов Механический выт жной пресс
DE2849559C2 (de) * 1978-11-13 1984-03-08 Siemens AG, 1000 Berlin und 8000 München Stromwandleranordnung für eine elektrische Energieversorgungsanlage

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2781015A (en) * 1952-06-11 1957-02-12 Cleveland Crane Eng Draw press
US3661008A (en) * 1970-03-17 1972-05-09 Wickman Mach Tool Sales Ltd Presses
US3785282A (en) * 1970-06-10 1974-01-15 Zdarske Strojirny A Slevarny Mechanical press with toggle lever crank drive
DE2346810A1 (de) * 1973-09-18 1975-03-27 Graebener Theodor Maschfab Muenzpraegemaschine
US4270413A (en) * 1978-02-02 1981-06-02 L. Schuler Gmbh Intermittent operation arrangement in a notching machine
EP0101590A2 (fr) * 1982-08-20 1984-02-29 L. SCHULER GmbH Presse d'estampage de monnaie avec des moyens pour le guidage universel de la pièce d'estampage dans la presse

Also Published As

Publication number Publication date
EP0718091B1 (fr) 2000-05-03
US5653141A (en) 1997-08-05
CZ339795A3 (en) 1996-11-13
DE4446221A1 (de) 1996-06-27
ES2146701T3 (es) 2000-08-16
DE59508269D1 (de) 2000-06-08
CZ290536B6 (cs) 2002-08-14

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