AT214777B - Press, in particular transfer press - Google Patents
Press, in particular transfer pressInfo
- Publication number
- AT214777B AT214777B AT731159A AT731159A AT214777B AT 214777 B AT214777 B AT 214777B AT 731159 A AT731159 A AT 731159A AT 731159 A AT731159 A AT 731159A AT 214777 B AT214777 B AT 214777B
- Authority
- AT
- Austria
- Prior art keywords
- press
- working
- eccentric
- particular transfer
- eccentrics
- Prior art date
Links
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
- B30B1/26—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 cams, eccentrics, or cranks
- B30B1/266—Drive systems for the cam, eccentric or crank axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D24/00—Special deep-drawing arrangements in, or in connection with, presses
- B21D24/005—Multi-stage presses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J9/00—Forging presses
- B21J9/10—Drives for forging presses
- B21J9/18—Drives for forging presses operated by making use of gearing mechanisms, e.g. levers, spindles, crankshafts, eccentrics, toggle-levers, rack bars
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/0029—Details of, or accessories for, presses; Auxiliary measures in connection with pressing means for adjusting the space between the press slide and the press table, i.e. the shut height
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/14—Control arrangements for mechanically-driven presses
- B30B15/146—Control arrangements for mechanically-driven presses for synchronising a line of presses
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Press Drives And Press Lines (AREA)
Description
<Desc/Clms Page number 1>
Presse, insbesondere Stufenpresse
Die Erfindung bezieht sich auf eine Presse, insbesondere Stufenpresse, mit mehreren in einer Reihe nebeneinander angeordneten Arbeitsstempeln, die einzeln über auf einer gemeinsamen Welle angeordnete Exzenter angetrieben sind.
Bei den bekannten derartigen Pressen ist die Länge sowie die Verdrehungsbeanspruchung der die Exzenter tragenden Welle, die an irgendeiner Stelle über Zahnräder angetrieben und abschnittsweise auf Verdrehung beansprucht wird, ab einer gewissen Anzahl von Arbeitsstempeln sehr beachtlich. Hinzu kommt, dass diese Exzenterwellen aus fertigungstechnischen Gründen teuer sind..
Um diesen Nachteil zu vermeiden, hat man vorgeschlagen, jeden Exzenter für sich durch eine eigene Welle anzutreiben, welche Wellen in den Ständern der Presse gelagert sind. Diese Wellen sind mit Zahnkränzen versehen, die in Eingriff mit den Ritzeln der Antriebswelle bzw. einer Vorlegewelle stehen.
Durch diese Massnahme erhält man sehr kurze und widerstandsfähige Exzenterwellen.
Weiterhin ist es bei Schnittziehpressen für die Massenfertigung kleiner, leichter Ziehteile bekannt, die Arbeitsstempel einzeln anzutreiben und für diesen Zweck als Verstellmittel Kurven oder Kurbeln vorzusehen.
Beide genannten Ausführungsformen weisen den Nachteil auf, dass die Bewegungsphasen aller Verstellmittel der Arbeitsstempel bzw. der Träger für die Arbeitsstempel gleich sind. Dadurch bedingt, muss sowohl das Pressen gestell als auch das aufzubringende Drehmoment nach der Gesamtpresskraft aller Arbeitsstempel bemessen werden, was schwere Ständer und hohe Antriebsleistungen erfordert, die den Preis der Presse massgeblich beeinflussen.
Um diesen Nachteil zu beseitigen, schlägt die Erfindung nach ihrem Hauptkennzeichen vor, die Ex- zenter zueinander winkeleinstellbar auszubilden. Dadurch können die Bewegungsphasen der Verstellmittel für die einzelnen Arbeitsstempel so gewählt werden, dass als Gesamtpresskraft nur etwa eine Kraft erforderlich ist, die im wesentlichen der Presskraft für den Arbeitsstempel entspricht, der den grössten Kraftbedarf hat.
Nach einem weiteren Merkmal der Erfindung wird dabei vorteilhafterweise jeder Exzenter an einem auf der gemeinsamen Achse lose gelagerten Zahnrad angeordnet und von einem auf einer Vorlegewelle drehfest, jedoch axial verschiebbar gelagerten und dadurch für eine Winkelverstellung der Exzenter entkuppelbaren Ritzel angetrieben.
Durch diese besondere Ausbildung und Lagerung der Antriebsmittel für die einzelnen Arbeitsstempel können das Gewicht der Pressenständer sowie die Antriebsleistung wesentlich geringer gehalten werden als bisher.
In der Zeichnung ist schematisch ein Ausführungsbeispiel der Erfindung dargestellt.
Mit 1 und 2 sind die beiden Ständer der Presse bezeichnet, die durch den Tisch 3, die Traversen 4, 4a und die Achse 5 und die Antriebswelle 6 miteinander verbunden sind. Die einzelnen Arbeitsstempel 7a - d sind in der Traverse 4 geführt und über je eine Schraubenspindel-8 mit dem Stössel 9 verbunden, an welchen die Pleuel 10 angreifen. Die Pleuel 10 sind auf den Exzentern lla gelagert, die an den Stirnrädern 11 angeordnet sind. Die Stirnräder 11 sind lose drehbar auf der Achse 5 angeordnet und stehen im Eingriff mit den Ritzeln 12, die durch Keile 13 drehfest, jedoch axial verschiebbar auf der Antriebswelle 6 gelagert sind. Die Lage der Arbeitsstempel gegenüber ihrem Gegenwerkzeug bzw. gegenüber dem Werkstück ist durch einen Schneckentrieb 14,15 einstellbar.
Um eine Verschiebung der Bewegungsphasen der
<Desc/Clms Page number 2>
einzelnen Arbeitsstempel 7a - d bzw. Exzenter 11a und deren Pleuel 10 zu ermöglichen, brauchen le- diglich die Ritzel 12 durch Axialverschieben auf der Antriebswelle 6 ausser Eingriff mit den Zahnrädern und letztere in eine entsprechende Winkellage zueinander gebracht zu werden.
Die getriebliche Verbindung zwischen dellRitzeln 12 und den StimrSdem 11 Rann auch in irgendeiner andern Form gelöst werden, beispielsweise dadurch, dass man die Welle 6 und das Zahnrad 16 axial verschiebbar anordnet.
PATENTANSPRÜCHE :
1. Presse, insbesondere Stufenpresse, mit mehreren in einer Reihe nebeneinander angeordneten Arbeitsstempeln, die einzeln über auf einer gemeinsamen Welle angeordnete Exzenter angetrieben sind, dadurch gekennzeichnet, dass die Exzenter (lla) zueinander winkeleinstellbar sind.
<Desc / Clms Page number 1>
Press, in particular transfer press
The invention relates to a press, in particular a transfer press, with a plurality of working rams arranged next to one another in a row, which are individually driven via eccentrics arranged on a common shaft.
In the known presses of this type, the length and the torsional stress on the shaft carrying the eccentrics, which is driven at any point via gears and subjected to torsion in sections, is very considerable from a certain number of working rams. In addition, these eccentric shafts are expensive for manufacturing reasons.
In order to avoid this disadvantage, it has been proposed that each eccentric be driven by its own shaft, which shafts are mounted in the uprights of the press. These shafts are provided with ring gears which mesh with the pinions of the drive shaft or a countershaft.
This measure results in very short and robust eccentric shafts.
Furthermore, it is known in cutting presses for the mass production of small, lighter drawn parts to drive the working rams individually and to provide cams or cranks as adjustment means for this purpose.
Both of these embodiments have the disadvantage that the phases of movement of all adjustment means of the working rams or the carriers for the working rams are the same. As a result, both the press frame and the torque to be applied must be dimensioned according to the total pressing force of all working punches, which requires heavy columns and high drive powers, which have a significant impact on the price of the press.
In order to eliminate this disadvantage, the main characteristic of the invention proposes that the eccentrics be designed to be angularly adjustable to one another. As a result, the phases of movement of the adjustment means for the individual working rams can be selected so that the total pressing force required is only approximately a force that essentially corresponds to the pressing force for the working ram that has the greatest power requirement.
According to a further feature of the invention, each eccentric is advantageously arranged on a toothed wheel loosely mounted on the common axis and driven by a pinion that is non-rotatably but axially displaceable on a countershaft and can therefore be decoupled for angular adjustment of the eccentric.
Due to this special design and mounting of the drive means for the individual work rams, the weight of the press frame and the drive power can be kept significantly lower than before.
In the drawing, an embodiment of the invention is shown schematically.
With 1 and 2, the two columns of the press are referred to, which are connected to one another by the table 3, the cross members 4, 4a and the axis 5 and the drive shaft 6. The individual working rams 7a - d are guided in the cross member 4 and each connected via a screw spindle 8 to the ram 9 on which the connecting rods 10 engage. The connecting rods 10 are mounted on the eccentrics 11a, which are arranged on the spur gears 11. The spur gears 11 are loosely rotatably arranged on the axis 5 and are in engagement with the pinions 12, which are mounted on the drive shaft 6 in a rotationally fixed but axially displaceable manner by means of wedges 13. The position of the working ram in relation to its counter tool or in relation to the workpiece is adjustable by a worm drive 14, 15.
To shift the phases of movement of the
<Desc / Clms Page number 2>
To enable individual working punches 7a-d or eccentrics 11a and their connecting rods 10, only the pinions 12 need to be brought out of engagement with the gearwheels by axially displacing them on the drive shaft 6, and the latter need to be brought into a corresponding angular position to one another.
The geared connection between the pinion gears 12 and the pinion gears 11 can also be released in some other form, for example by arranging the shaft 6 and the gearwheel 16 to be axially displaceable.
PATENT CLAIMS:
1. Press, in particular transfer press, with several working rams arranged next to one another in a row, which are individually driven via eccentrics arranged on a common shaft, characterized in that the eccentrics (11a) are mutually adjustable in angle.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEK36414A DE1105831B (en) | 1958-12-08 | 1958-12-08 | Press, in particular transfer press |
Publications (1)
Publication Number | Publication Date |
---|---|
AT214777B true AT214777B (en) | 1961-04-25 |
Family
ID=7220683
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT731159A AT214777B (en) | 1958-12-08 | 1959-10-08 | Press, in particular transfer press |
Country Status (8)
Country | Link |
---|---|
US (1) | US3030878A (en) |
AT (1) | AT214777B (en) |
BE (1) | BE585402A (en) |
CH (1) | CH380059A (en) |
DE (1) | DE1105831B (en) |
FR (1) | FR1239818A (en) |
GB (1) | GB898370A (en) |
NL (1) | NL244393A (en) |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3133494A (en) * | 1961-01-27 | 1964-05-19 | May Pressenbau Gmbh | Adjustable press ram |
DE1201291B (en) * | 1961-04-26 | 1965-09-23 | Pressen Und Scherenbau Erfurt | Drive of a side pusher of a transfer press |
US3348406A (en) * | 1963-11-12 | 1967-10-24 | Youngstown Sheet And Tube Co | Motorized press ram adjusting means |
US3289450A (en) * | 1963-11-26 | 1966-12-06 | Minster Machine Co | Can extrusion machine |
US4045152A (en) * | 1975-09-02 | 1977-08-30 | Kusel Equipment Company | Apparatus for making cheese |
US4026207A (en) * | 1976-01-09 | 1977-05-31 | The Continental Group, Inc. | Pre-loaded ram-tool holder energy absorbing mechanism |
USRE32048E (en) * | 1979-01-11 | 1985-12-17 | Prince Corporation | Tie bar adjustment system |
DE2930705A1 (en) * | 1979-07-28 | 1981-02-12 | Schuler Gmbh L | Press for making blocks - has eccentric drive with U=shaped press frame and I=shaped ram |
US4309943A (en) * | 1980-02-13 | 1982-01-12 | Fmc Corporation | Citrus fruit juice extractor |
US4309944A (en) * | 1980-02-13 | 1982-01-12 | Fmc Corporation | High speed fruit feeding apparatus |
US4471644A (en) * | 1981-09-02 | 1984-09-18 | Km-Engineering Ag | Apparatus for mechanically treating metal components |
ES2025221B3 (en) * | 1987-02-12 | 1992-03-16 | Bruderer Ag | STAMPING PRESS |
DK157236C (en) * | 1987-02-23 | 1990-04-30 | Kvm Industrimaskiner | THE PROCEDURE AND INSTALLATION FOR THE PREPARATION OF CONCRETE GOODS LIKE THE BLOCK IN A CELL-SHARED CAST |
GB2317362B (en) * | 1995-02-02 | 1999-07-21 | Aida Eng Ltd | Multi-slide mechanical press |
US5761994A (en) * | 1995-02-02 | 1998-06-09 | Aida Engineering Ltd. | Multi-slide mechanical press with phase difference |
CN1064310C (en) * | 1996-07-03 | 2001-04-11 | Aida(会田)工程技术株式会社 | Multi-slide mechanical press |
JPH10137984A (en) * | 1996-11-11 | 1998-05-26 | Aida Eng Ltd | Multi-slide mechanical press |
US5884520A (en) * | 1997-11-17 | 1999-03-23 | The Whitaker Corporation | Die set having shut height adjust and stripper plate actuator mechanisms |
US6074556A (en) * | 1999-03-02 | 2000-06-13 | Dyax Corporation | Cartridge sealing apparatus and method |
DE19941925B4 (en) * | 1999-09-03 | 2007-11-29 | Schuler Pressen Gmbh & Co. Kg | Adjustment plate for a press |
GB2552530B (en) * | 2016-07-28 | 2019-05-01 | Crown Packaging Technology Inc | Can bodymaker ram alignment |
CN113579037A (en) * | 2021-07-29 | 2021-11-02 | 王盛 | Multi-station punching machine |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US79605A (en) * | 1868-07-07 | Aldejf siblet | ||
US46278A (en) * | 1865-02-07 | Improvement in eccentric adjustments | ||
US576619A (en) * | 1897-02-09 | rouse | ||
US989373A (en) * | 1910-05-28 | 1911-04-11 | Moline Plow Co | Mechanism for controlling the connection between driving and driven gears. |
US1138799A (en) * | 1913-07-25 | 1915-05-11 | Robert W Scott | Adjustment device for machine elements. |
US1511052A (en) * | 1921-10-24 | 1924-10-07 | Augustus N Dods | Punching machine |
US1693959A (en) * | 1922-08-07 | 1928-12-04 | Risdon Mfg Co | Automatic-machine work transferrer |
US2135381A (en) * | 1936-06-30 | 1938-11-01 | John Blaser | Aeroplane propeller drive mechanism |
US2243952A (en) * | 1939-04-01 | 1941-06-03 | Rudolph W Glasner | Press |
US2808798A (en) * | 1950-01-14 | 1957-10-08 | Danly Mach Specialties Inc | Triple action press |
-
0
- NL NL244393D patent/NL244393A/xx unknown
-
1958
- 1958-12-08 DE DEK36414A patent/DE1105831B/en active Pending
-
1959
- 1959-10-05 CH CH7906659A patent/CH380059A/en unknown
- 1959-10-08 AT AT731159A patent/AT214777B/en active
- 1959-10-23 GB GB36070/59A patent/GB898370A/en not_active Expired
- 1959-11-05 FR FR809402A patent/FR1239818A/en not_active Expired
- 1959-12-07 US US857954A patent/US3030878A/en not_active Expired - Lifetime
- 1959-12-07 BE BE585402A patent/BE585402A/en unknown
Also Published As
Publication number | Publication date |
---|---|
GB898370A (en) | 1962-06-06 |
FR1239818A (en) | 1960-08-26 |
BE585402A (en) | 1960-04-01 |
NL244393A (en) | |
DE1105831B (en) | 1961-05-04 |
CH380059A (en) | 1964-07-31 |
US3030878A (en) | 1962-04-24 |
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