EP0254847B1 - Vorrichtung zum Antrieb eines schwingenden Vorgreifers einer Druckmaschine - Google Patents

Vorrichtung zum Antrieb eines schwingenden Vorgreifers einer Druckmaschine Download PDF

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Publication number
EP0254847B1
EP0254847B1 EP87108406A EP87108406A EP0254847B1 EP 0254847 B1 EP0254847 B1 EP 0254847B1 EP 87108406 A EP87108406 A EP 87108406A EP 87108406 A EP87108406 A EP 87108406A EP 0254847 B1 EP0254847 B1 EP 0254847B1
Authority
EP
European Patent Office
Prior art keywords
eccentric shaft
shaft
gear
eccentric
cam
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.)
Expired - Lifetime
Application number
EP87108406A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0254847A2 (de
EP0254847A3 (en
Inventor
Hans Wilhelm Dr. Ing. Leyendecker
Paul Abendroth
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.)
Manroland AG
Original Assignee
MAN Roland Druckmaschinen AG
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 MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Priority to AT87108406T priority Critical patent/ATE66183T1/de
Publication of EP0254847A2 publication Critical patent/EP0254847A2/de
Publication of EP0254847A3 publication Critical patent/EP0254847A3/de
Application granted granted Critical
Publication of EP0254847B1 publication Critical patent/EP0254847B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F21/00—Devices for conveying sheets through printing apparatus or machines
    • B41F21/04—Grippers
    • B41F21/05—In-feed grippers

Definitions

  • the invention relates to a device for driving a vibrating pre-gripper of a printing press according to the preamble of the first claim.
  • Such devices are well known and e.g. described in DE-PS 2 220 343 in one embodiment.
  • the disadvantage is that to control the movement of the pre-gripper shaft non-positively interacting drive parts are provided.
  • a lever arm is constantly pressed against a roller via a cam control by means of a spring.
  • the components involved in the adhesion are inevitably very heavily stressed by the large inertial forces caused by the high angular velocities and accelerations of the pre-gripper.
  • the invention is based on the object, in a device of the type mentioned, form-fittingly interacting drive parts and a coaxial arrangement of the input and output shaft for initiating the additional movement which the continuous rotary movement of the excavating eccentric eccentric is provided.
  • the advantage of the invention is in particular that the mass forces are minimized. At the same time, pre-assembly, final assembly and interchangeability of the device are improved.
  • An eccentric shaft 2 is rotatably mounted in a housing shell 3 on the side stand 15 and in the opposite side stand, which is not shown in the drawing.
  • a gear 4 which is in constant engagement with a rotating with the pressure cylinder, not shown in the drawing drive gear.
  • cam discs 7, 8 are firmly connected, the main and secondary via cam rollers 10, 11 with a Double roller lever 9 are positively connected.
  • a coupling 12 is articulated on the double roller lever 9 in the articulation point 22, which is also articulated eccentrically in a crank point 19 in an externally toothed gear 13 of an epicyclic differential gear 1, which is rotatably mounted on the eccentric shaft 2.
  • the double roller lever 9 is rotatably mounted in the housing shell 3 in the frame point 21.
  • the externally toothed gear 13 of the epicyclic differential gear 1 is in constant engagement with an internally toothed gear 14 which is rotatably supported on the hub 18 of a further externally toothed gear 17.
  • This externally toothed gear 17 is fixedly connected to the pre-gripper shaft 16 and the hub 18, is rotatably supported on the eccentric shaft 2 and is also in constant engagement with the internally toothed gear 14.
  • the central axes of the two externally toothed gears 13, 17 of the planetary gear differential gear 1 are offset by the size of the eccentricity, ie the distance between the central axes.
  • Gear 4 is driven at the machine speed and positively sets the double roller lever 9 in an oscillating rotary motion via the cam discs 7, 8 and cam rollers 10, 11 which are firmly connected to the eccentric shaft 2.
  • the pre-gripper shaft 16 is permanently connected to the externally toothed gear 17.
  • the internally toothed gear 14 of the epicyclic differential gear 1 overlaps the circular movement of the eccentric shaft 2 with the oscillating rotary movement of the externally toothed gear 13 for the required movement 20 on the externally toothed gear 17.
  • the movement 20 the pre-gripper shaft 16 on the externally toothed gear 17 is indicated by dashed lines in FIG. 3.
  • the chronological sequence ensures that the grippers 6 are at rest when the sheet is taken over from the system table 5, the sheet is transferred to the grippers of the printing cylinder, which are not shown, at the same speed, and an end of the return movement, in which the grippers 6 are removed from the printing cylinder into the rest position and be gradually brought back to the starting position for the takeover of a new arch.
  • the invention is not limited to the embodiment described above, but the movement 20 can also be generated in kinematic reversal by fixed instead of rotating cams 7, 8 and a comparable epicyclic differential gear which is coupled to a revolving four-link crank gear. It is essential to the invention that input and output shafts are used to generate the additional movement of the pre-gripper shaft, which are not located far apart but are arranged coaxially in order to superimpose an oscillating movement with minimized mass forces on the continuous rotary movement of the lifting pre-gripper eccentric.

Landscapes

  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Advancing Webs (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Discharge By Other Means (AREA)
  • Retarders (AREA)
  • Transmission Devices (AREA)
EP87108406A 1986-06-26 1987-06-11 Vorrichtung zum Antrieb eines schwingenden Vorgreifers einer Druckmaschine Expired - Lifetime EP0254847B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87108406T ATE66183T1 (de) 1986-06-26 1987-06-11 Vorrichtung zum antrieb eines schwingenden vorgreifers einer druckmaschine.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863621385 DE3621385A1 (de) 1986-06-26 1986-06-26 Vorrichtung zum antrieb eines schwingenden vorgreifers einer druckmaschine
DE3621385 1986-06-26

Publications (3)

Publication Number Publication Date
EP0254847A2 EP0254847A2 (de) 1988-02-03
EP0254847A3 EP0254847A3 (en) 1989-06-28
EP0254847B1 true EP0254847B1 (de) 1991-08-14

Family

ID=6303735

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87108406A Expired - Lifetime EP0254847B1 (de) 1986-06-26 1987-06-11 Vorrichtung zum Antrieb eines schwingenden Vorgreifers einer Druckmaschine

Country Status (5)

Country Link
US (1) US4800813A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
EP (1) EP0254847B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPH0671789B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
AT (1) ATE66183T1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (2) DE3621385A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8619504D0 (en) * 1986-08-11 1986-09-24 Rockwell Graphic Systems Ltd Accelerating drive member
US5820275A (en) * 1995-01-17 1998-10-13 Tektronix, Inc. Printer multi-function drive train apparatus and method
WO2007084376A2 (en) * 2006-01-17 2007-07-26 Andrzej Dec Rotary scissors action machine
US9056734B2 (en) 2012-08-15 2015-06-16 Hewlett-Packard Development Company, L.P. Apparatus for lowering and raising a pick arm

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2699941A (en) * 1949-12-15 1955-01-18 Huck Company Registering and gripper means for sheet-fed printing presses
DE863808C (de) * 1950-05-20 1953-01-19 Maschf Augsburg Nuernberg Ag Kettenausleger fuer Bogendruckmaschinen
US2703526A (en) * 1951-02-15 1955-03-08 Hedemora Verkst Er Ab Reciprocatory feed means for rotary printing machines
US2831426A (en) * 1955-06-02 1958-04-22 Koenig & Bauer Schnellpressfab Feeding-drum for sheet-fed printing presses
SU130048A1 (ru) * 1959-11-28 1959-11-30 Е.В. Буренко Листовыводное устройство, например, дл печатных машин
DE1208309B (de) * 1965-02-08 1966-01-05 Planeta Veb Druckmasch Werke Schwinganlage fuer Druckmaschinen
CS149844B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1971-05-04 1973-08-23
DE2166775B2 (de) * 1971-12-09 1976-06-24 Ausscheidung aus: 21 60 995 Koenig & Bauer AG, 8700 Würzburg Vorrichtung bei bogenrotationsdruckmaschinen zum antrieb von vorgreifertrommeln
US3817122A (en) * 1972-01-14 1974-06-18 Miller Printing Machinery Co Differential drive mechanism
US3992993A (en) * 1975-03-25 1976-11-23 Veb Polygraph Leipzig Kombinat Fur Polygraphische Maschinen Und Ausrustungen Sheet transfer system for a printing machine
NL7604018A (nl) * 1975-10-22 1977-04-26 Heidelberger Druckmasch Ag Keertrommel voor een omstelbare schoon- en weerdrukmachine.
DE2557866B2 (de) * 1975-12-22 1977-11-03 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Rotierende vorgreifertrommel
US4132403A (en) * 1977-07-07 1979-01-02 Veb Polygraph Leipzig Kombinat Fuer Polygraphische Maschinen Und Ausruestungen Sheet transfer apparatus for printing machine
DE2861397D1 (en) * 1978-06-26 1982-01-28 Heidelberger Druckmasch Ag Camless drive for an oscillating front gripper
DD142694A1 (de) * 1979-04-02 1980-07-09 Guenter Weisbach Bogenrotationsdruckmaschine mit einem von unten arbeitenden vorgreifer
DE3333050A1 (de) * 1983-09-14 1985-03-28 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Vorgreiferantrieb

Also Published As

Publication number Publication date
US4800813A (en) 1989-01-31
DE3772125D1 (de) 1991-09-19
EP0254847A2 (de) 1988-02-03
DE3621385C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1989-02-16
JPS635945A (ja) 1988-01-11
ATE66183T1 (de) 1991-08-15
DE3621385A1 (de) 1988-01-14
EP0254847A3 (en) 1989-06-28
JPH0671789B2 (ja) 1994-09-14

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