EP0693332A1 - Presse à barres de transfert - Google Patents

Presse à barres de transfert Download PDF

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Publication number
EP0693332A1
EP0693332A1 EP95111056A EP95111056A EP0693332A1 EP 0693332 A1 EP0693332 A1 EP 0693332A1 EP 95111056 A EP95111056 A EP 95111056A EP 95111056 A EP95111056 A EP 95111056A EP 0693332 A1 EP0693332 A1 EP 0693332A1
Authority
EP
European Patent Office
Prior art keywords
rollers
cam
press
press according
pretensioning device
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
EP95111056A
Other languages
German (de)
English (en)
Other versions
EP0693332B1 (fr
Inventor
Karl Thudium
Andreas Dangelmayr
Dieter Wolz
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 EP0693332A1 publication Critical patent/EP0693332A1/fr
Application granted granted Critical
Publication of EP0693332B1 publication Critical patent/EP0693332B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/02—Advancing work in relation to the stroke of the die or tool
    • B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
    • B21D43/05—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work specially adapted for multi-stage presses
    • B21D43/055—Devices comprising a pair of longitudinally and laterally movable parallel transfer bars
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/21—Elements
    • Y10T74/2101—Cams
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/21—Elements
    • Y10T74/2101—Cams
    • Y10T74/2107—Follower

Definitions

  • the invention relates to a press with gripper rails for moving workpieces in the machining stations according to the type defined in the preamble of claim 1.
  • the workpiece transport devices which are often designed as gripper rails, must be moved correspondingly quickly.
  • no arbitrarily high speeds are possible, since the workpiece transport devices are usually moved over cam disks, with levers resting on the cam disks which scan the contour of the cam disk. The resulting movement of the levers is then directed in the desired direction for picking up or transporting the workpiece via suitable devices.
  • a press line is known in which individual units of the press line can be moved by conveying devices arranged below the floor level.
  • a cam disk is described, on which a rocker provided with a pressure roller bears, which is provided by a Pneumatic cylinder is pressed against the cam.
  • the device described is not used for moving workpieces in the processing stations of presses, but only for moving entire structural units of a press line.
  • the present invention is therefore based on the object of providing a press with gripper rails for transferring workpieces in the machining stations, which eliminates the disadvantages of the prior art mentioned, in particular which operates economically and rules out disruptions in workpiece transport between the individual machining stations of a press.
  • a double cam plate 1 which has two individual cam plates 2 and 3.
  • the individual cams 2, 3 are arranged on a common shaft 4 so that they move synchronously.
  • the rollers 5, 6 are connected to the workpiece transport device of the press via a rocker arm 7 and a rod 8.
  • the rocker arm 7 itself is rotatably mounted at a point 10.
  • the axis of rotation of the rocker arm 7 extends parallel to the axial direction of the shaft 4.
  • the rollers 5, 6 are each rotatably mounted on bolts 11, 12.
  • the pin of the roller 5 is an eccentric pin 11 and is connected via a link 13 to a pretensioning device, which in the present exemplary embodiment is designed as a hydraulic cylinder 14.
  • the biasing device 14, i.e. the hydraulic cylinder is firmly connected to the rocker arm 7 by means of a bearing block 15, the underside of the hydraulic cylinder 14, i.e. the side facing away from the piston rod 16 of the hydraulic cylinder 14 is rotatably mounted on the bearing block 15.
  • the end of the piston rod 16 facing away from the hydraulic cylinder 14 is also provided with a swivel joint, so that the connection between the link 13 and the piston rod 16 of the hydraulic cylinder 14 also takes place by means of a bearing which enables the link 13 to pivot.
  • FIG. 2 shows a side view of the arrangement according to FIG. 1.
  • FIGS. 1 and 2 a second embodiment of the present invention is shown.
  • the same reference numerals are to be used below for components which have already been introduced in connection with FIGS. 1 and 2.
  • double cam 1 On a double cam 1, which has two single cams 2, 3, which are mounted on a common shaft, not shown, two rollers 5, 6 engage and feel the contour of the double cam 1 from.
  • the rocker arm 7 is connected via a swivel joint 9 to a rod 8 which transmits the movements of the rocker arm 7 to the workpiece transport device of the press.
  • the rocker arm 7 itself is rotatably mounted at a point 10.
  • rollers 5, 6 are rotatably mounted in links 13, the links 13 being pivotable about an axis 17.
  • the pivoting movement of the links 13 is achieved by activating the pressing unit 14, which in the present exemplary embodiment is designed as a hydraulic cylinder.
  • rollers 5, 6 are not mounted on eccentric bolts, but on axles 18 with a round cross-sectional area.
  • the pressing movement takes place, as already described, due to the eccentric mounting or the pivoting about the axis of rotation 17 of the links 13.
  • a second position of the rocker arm 7 after pivoting is shown in dashed lines in FIG. 3.
  • the pretensioning device 14 can also advantageously be designed as a pneumatic cylinder or as a mechanical device. It is only important that a sufficiently large pressure is achieved with the pretensioning device 14, which presses the rollers 5, 6 against the circumferential surfaces of the double cam 1 under pretension and thus compensates for the play between the double cam 1 and the rollers 5, 6.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Transmission Devices (AREA)
EP95111056A 1994-07-20 1995-07-14 Presse à barres de transfert Expired - Lifetime EP0693332B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4425560A DE4425560A1 (de) 1994-07-20 1994-07-20 Presse mit Greiferschienen
DE4425560 1994-07-20

Publications (2)

Publication Number Publication Date
EP0693332A1 true EP0693332A1 (fr) 1996-01-24
EP0693332B1 EP0693332B1 (fr) 1999-10-27

Family

ID=6523596

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95111056A Expired - Lifetime EP0693332B1 (fr) 1994-07-20 1995-07-14 Presse à barres de transfert

Country Status (5)

Country Link
US (1) US5718152A (fr)
EP (1) EP0693332B1 (fr)
CZ (1) CZ284421B6 (fr)
DE (2) DE4425560A1 (fr)
ES (1) ES2140586T3 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100454451B1 (ko) * 1999-07-29 2004-10-28 하테부르 움포름마쉬넨 아크티엔게젤샤프트 상승 및 하강 이동 발생장치
GB2371283B (en) * 2000-12-22 2005-03-02 Vitec Group Plc Devices for providing torque resistance
US6736096B2 (en) * 2002-02-21 2004-05-18 Delphi Technologies, Inc. Method and apparatus for setting valve lift within a cylinder

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3596498A (en) * 1968-12-27 1971-08-03 Textron Inc Press
DE2112590A1 (de) 1971-03-16 1972-10-12 Weingarten Ag Maschf Pressenstrasse
DE3725310A1 (de) * 1986-08-08 1988-02-11 Sumitomo Heavy Industries Mechanischer umsetzfoerderer
JPH01237030A (ja) * 1988-03-18 1989-09-21 Ishikawajima Harima Heavy Ind Co Ltd トランスファープレスの送り駆動装置
DE3832499A1 (de) 1988-09-24 1990-03-29 Schuler Gmbh L Presse mit greiferschienen

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2266081A (en) * 1940-03-23 1941-12-16 Jay T Rogers Melting pot discharge valve operating means
US2558679A (en) * 1947-05-07 1951-06-26 Nouvelle Soc De Construction C Cam and follower mechanism
FR1101917A (fr) * 1953-06-09 1955-10-12 Mécanisme à cames
US3116923A (en) * 1960-09-09 1964-01-07 Maschf Augsburg Nuernberg Ag Sheet advancing drive for printing presses
US3585837A (en) * 1969-01-27 1971-06-22 Otto Bihler Enforced cam guidance for tool carriers
DE3913663A1 (de) * 1989-04-26 1990-10-31 Schuler Gmbh L Umsetzeinrichtung in einer transferpresse o.dgl. umformmaschine
DE3922532C1 (fr) * 1989-07-08 1990-10-04 Wafios Maschinenfabrik Gmbh & Co Kg, 7410 Reutlingen, De

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3596498A (en) * 1968-12-27 1971-08-03 Textron Inc Press
DE2112590A1 (de) 1971-03-16 1972-10-12 Weingarten Ag Maschf Pressenstrasse
DE3725310A1 (de) * 1986-08-08 1988-02-11 Sumitomo Heavy Industries Mechanischer umsetzfoerderer
JPH01237030A (ja) * 1988-03-18 1989-09-21 Ishikawajima Harima Heavy Ind Co Ltd トランスファープレスの送り駆動装置
DE3832499A1 (de) 1988-09-24 1990-03-29 Schuler Gmbh L Presse mit greiferschienen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 013, no. 565 (M - 907) 14 December 1989 (1989-12-14) *

Also Published As

Publication number Publication date
US5718152A (en) 1998-02-17
DE59507126D1 (de) 1999-12-02
ES2140586T3 (es) 2000-03-01
DE4425560A1 (de) 1996-01-25
CZ185995A3 (en) 1996-02-14
EP0693332B1 (fr) 1999-10-27
CZ284421B6 (cs) 1998-11-11

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