EP0693332A1 - Presse à barres de transfert - Google Patents
Presse à barres de transfert Download PDFInfo
- 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
Links
Images
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)
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)
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)
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)
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 |
-
1994
- 1994-07-20 DE DE4425560A patent/DE4425560A1/de not_active Withdrawn
-
1995
- 1995-07-14 ES ES95111056T patent/ES2140586T3/es not_active Expired - Lifetime
- 1995-07-14 EP EP95111056A patent/EP0693332B1/fr not_active Expired - Lifetime
- 1995-07-14 DE DE59507126T patent/DE59507126D1/de not_active Expired - Fee Related
- 1995-07-17 CZ CZ951859A patent/CZ284421B6/cs not_active IP Right Cessation
- 1995-07-20 US US08/504,808 patent/US5718152A/en not_active Expired - Fee Related
Patent Citations (5)
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)
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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