EP0152553B1 - Pince de feuille pour machine à imprimer - Google Patents

Pince de feuille pour machine à imprimer Download PDF

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Publication number
EP0152553B1
EP0152553B1 EP84114016A EP84114016A EP0152553B1 EP 0152553 B1 EP0152553 B1 EP 0152553B1 EP 84114016 A EP84114016 A EP 84114016A EP 84114016 A EP84114016 A EP 84114016A EP 0152553 B1 EP0152553 B1 EP 0152553B1
Authority
EP
European Patent Office
Prior art keywords
gripper
sheet
base member
screw
shaft
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
Application number
EP84114016A
Other languages
German (de)
English (en)
Other versions
EP0152553A3 (en
EP0152553A2 (fr
Inventor
Klemens Kemmerer
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 AT84114016T priority Critical patent/ATE34938T1/de
Publication of EP0152553A2 publication Critical patent/EP0152553A2/fr
Publication of EP0152553A3 publication Critical patent/EP0152553A3/de
Application granted granted Critical
Publication of EP0152553B1 publication Critical patent/EP0152553B1/fr
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
    • B65H5/08—Feeding articles separated from piles; Feeding articles to machines by grippers, e.g. suction grippers
    • B65H5/14—Details of grippers; Actuating-mechanisms therefor
    • 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
    • B41F21/10—Combinations of transfer drums and grippers
    • B41F21/104—Gripper details
    • 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
    • Y10T403/00—Joints and connections
    • Y10T403/71—Rod side to plate or side
    • Y10T403/7111—Shackle is integral with or independently attached to proximate side of plate or other side
    • 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
    • Y10T403/00—Joints and connections
    • Y10T403/71—Rod side to plate or side
    • Y10T403/7129—Laterally spaced rods

Definitions

  • the invention relates to a sheet gripper for printing presses, in particular sheet gripper for the delivery systems of printing presses, with a clamping piece that can be fastened to a pivotable gripper shaft and a gripper finger that is resiliently arranged relative to the clamping piece and that can be brought into contact with a gripper pad when the gripper shaft is pivoted, the clamping piece consisting of two parts is formed and consists of a base body and a lower part, the base body and lower part on the side facing away from the gripper support can be connected by means of a screw and thus fastened to the gripper shaft, and at the same time the gripper finger with the screw on its end facing away from the gripper support on one End of the base body is attached.
  • a sheet gripper of this type is known from US-A-2 906 204.
  • the assembly and adjustability of this gripper is insufficient.
  • DE-U-6 608 544 discloses a sheet gripper which solves the task of designing a gripper provided with swivel levers in such a way that the swivel levers are arranged rotatably with respect to the stops fixed to the gripper holder, thereby eliminating the disadvantages of the known embodiments.
  • this gripper is said to have the advantages with regard to a perfect register when accepting or handing over the sheet, as was previously only possible with gripper arms in which the parts cooperating with the stops perform an adjustment movement when closing or opening with respect to the stops without however, the disadvantage of a larger stroke occurs during the opening or closing movement of the gripper.
  • the innovation is based on the task of specifying an inexpensive, easily assembled and adjustable sheet gripper.
  • the gripper finger is guided resiliently by means of a secured screw and is adjustably arranged on a base body of the sheet gripper.
  • the gripper finger has a large spring length, since the screw is arranged at the end of the gripper finger, i. that is, the entire length of the base body is available for guiding and at the same time for supporting the gripper finger on the base body.
  • the gripper finger is quickly assembled and the gripper finger is quickly adjusted after the base body of the sheet gripper has been fastened to the drive shaft.
  • the gripper finger is made of spring steel and is already pre-tensioned in the assembled state by means of a bend and is designed precisely for a certain spring force due to a recess at the clamping point.
  • a lower part can be locked on one side on the base body and is detachably fastened on the opposite side with the screw on the gripper shaft.
  • the lower part is a simple stamped part that is only partially pre-bent.
  • the sheet gripper therefore does not require a complex adapter to be manufactured and is therefore very inexpensive and easy to manufacture.
  • the special position of the screw on the sheet gripper and the lockable lower part enable the sheet gripper to be replaced without the gripper shaft of the sheet gripper having to be removed from the printing press.
  • the bow gripper with the base body and the lower part can only be mounted on the gripper shaft using the one screw. Assembly and adjustment are two different processes that are carried out with different screws in two different processes. For assembly, the lower part must be snapped onto the base body on one side and thus mounted on the gripper shaft. Then the screw is tightened and the bow gripper is mounted on the gripper shaft. The precise adjustment of the sheet gripper in relation to the sheet gripper contact force is carried out using a small additional adjusting screw, which is self-locking.
  • the gripper finger is guided on the base body with a wart during its spring movements.
  • the wart is just a protruding protrusion from the body, which protrudes into an elongated hole in the gripper finger.
  • the particularly simple design of the bow gripper also does not require any bearing points on the gripper shaft of the bow grippers, which can therefore not get stuck due to contamination. Furthermore, no protective caps are required to prevent dirt from penetrating into fit areas, because the arch gripper has no complex fits in its overall design. This simple and inexpensive version of the sheet gripper has proven particularly useful in the delivery of the printing press.
  • the base body is an easy-to-manufacture mass product, which is first punched and then formed into a U-shaped part by bending.
  • the screw is secured by a simple locking washer or other known securing devices.
  • the pretension of the gripper finger can be defined by a rectangular recess and an angle so that the Adjustment screw can be covered exactly the area in which the different forces of the respective printing work.
  • the angle is approx. 5 ° from the straight line and starts approx. In the area of the recess.
  • FIG. 1 shows a gripper finger 1 which is fastened to the base body 3 with only one screw 2.
  • a lower part 5 of a sheet gripper 4 is simultaneously held in addition to the gripper finger 1.
  • the bow gripper 4 can thus only be fastened by means of the one screw 2 on the gripper shaft 9a of a boom system.
  • the sheet gripper 4 can be easily attached and detached without the gripper shaft 9a having to be removed from the printing machine for attachment and detachment.
  • the lower part 5 is hooked on a recess 13 of a locking blade 14 and thus placed around the gripper shaft 9a.
  • the screw 2 is then tightened and the sheet gripper 4 is fastened in the region of a recess 9 on the gripper shaft 9a.
  • the lower part 5 is angled in the area of the screw 2.
  • the bend is also performed on the base body 3 in a small rectangular recess, so that even with different diameters of the gripper shaft 9a, the sheet gripper 4 always has a tight fit.
  • the screw 2 is screwed to a square nut 12 which is welded to the underside of the lower part 5.
  • the gripper finger 1 lies flat with almost its entire length on the base body 3 and is fastened on one side with the screw 2 on the base body 3.
  • To secure the screw 2 there is a corrugated locking washer 10 between the head of the screw 2 and the gripper finger 1. From the screw 2 to the bent end of the gripper support, the gripper finger 1 can spring over its entire length.
  • a wart 7 is provided on the base body 3, which protrudes into an elongated hole 6 of the gripper finger 1.
  • the gripper finger 1 can perform the required spring movements over its entire length during operation, in which the wart 7 guides the gripper finger 1 on the base body 3.
  • the sheet grippers 4 are individually adjusted by means of the adjusting screws 8 with the holding force required for the respective printed sheet and according to the experience of the printer according to the respective printing conditions.
  • This fine work can be carried out particularly quickly with the self-locking adjusting screw 8, since it can be easily reached from above through the elongated hole 6 by means of an Allen key.
  • the width of the elongated hole 6 is selected to be somewhat larger than the largest external dimensions of the key.
  • the sheet gripper 4 is shown in plan view, you can see the total contact surface of the gripper finger 1. Before the gripper finger 1 is fastened by the screw 2, the recess 11 in the gripper finger 1 can be seen.
  • the recess 11 is rectangular and lies with its long side transversely to the long side of the gripper finger 1.
  • the width and length of the recess 11 defines the resilient biasing force of the gripper finger 1.
  • the elongated hole 6 is arranged on the center line approximately in the middle of the spring travel of the gripper finger 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)

Claims (9)

1. Pince de feuille pour machines imprimantes, en particulier pince de feuille pour le système de sortie de machines imprimantes, comportant une pièce de serrage (3, 5) qui peut être fixée sur un arbre de pince (9a) pivotant et un doigt de pince (1) disposé élastiquement par rapport à la pièce de serrage, lequel, lors du pivotement de l'arbre de pince (9a), peut être amené au contact d'un support de pince, la pièce de serrage étant réalisée en deux parties et étant constituée d'un corps de base (3) et d'une partie inférieure (5), le corps de base (3) et la partie inférieure (5) pouvant être reliés du côté opposé au support de pince au moyen d'une vis (2) et pouvant être ainsi fixés sur l'arbre de pince (9a) et, en même temps, le doigt de pince (1) étant fixé à l'aide de la vis (2), à son extrémité opposée au support de pince, à une extrémité du corps de base (3),
caractérisée en ce que le corps de base (3) et la partie inférieure (5) peuvent être accrochés l'un à l'autre du côté opposé à la vis (2) relativement à l'arbre de pince (9a), en ce que le doigt de pince (1) est réalisé en acier élastique et, en position de montage, est déjà prétendu, de . sorte que le doigt de pince (1) peut être réglé par une vis (8) prévue dans le corps de base (3) à l'extrémité de celui-ci proche du support de pince.
2. Pince de feuille selon la revendication 1,
caractérisée en ce que le doigt de pince (1) présente un trou oblong (6) dans lequel est disposé un bouton (7) prévu sur le corps de base (3).
3. Pince de feuille selon les revendications 1 ou 2,
caractérisée en ce qu'une vis de réglage autobloquante (8) est disposée dans le corps de base (3) de sorte que la vis de réglage (8) peut être réglée à l'aide d'une clef à six pans par le trou oblong (6) et qu'ainsi le doigt de pince (1) peut être ajusté.
4. Pince de feuille selon les revendications 1 à 3,
caractérisée en ce que le corps de base (3) est une tôle pliée en forme de U comportant des échancrures latérales semi-circulaires (9) pour l'arbre de la pince de feuille (4).
5. Pince de feuille selon au moins une des revendications précédentes,
caractérisée en ce que, entre la tête de la vis (2) et le doigt de pince (1), est disposée une rondelle d'arrêt indéserrable (10) ou un écrou indéserrable.
6. Pince de feuille selon la revendication 1, caractérisée en ce que le doigt de pince (1), dans sa zone d'appui, est plié de façon correspondante aux chariots de pince connus et est muni d'une surface adhérente, comme par exemple des granulés ou d'une couche de caoutchouc ou de matière synthétique.
7. Pince de feuille selon les revendications 1 à 6,
caractérisée en ce que, sur le dessous de la partie inférieure en forme de tôle (5), est soudé un écrou à quatre pans (12), en ce que, dans cette zone, la partie inférieure (5) est pliée à angle droit et en ce que, de l'autre côté dé la vis (2), la partie inférieure (5) présente une forme arrondie correspondant à l'arbre de pince (9a) et, à partir du milieu de l'arbre (9a), s'étend tangentiellement à celui-ci.
8. Pince de feuille selon les revendications 1 à 7,
caractérisée en ce que, sur la partie inférieure (5) dans la zone tangentielle, sont disposés latéralement des deux côtés des évidements (13), dans lesquels les lames d'encliquetage (14) du corps de base (3) peuvent être insérées.
9. Pince de feuille selon les revendications 1 à 8,
caractérisée en ce que, entre la vis (2) et le trou oblong (6), est prévu dans le doigt de pince (1) un évidement rectangulaire (11) qui s'étend transversalement au trou oblong (6).
EP84114016A 1984-02-18 1984-11-20 Pince de feuille pour machine à imprimer Expired EP0152553B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84114016T ATE34938T1 (de) 1984-02-18 1984-11-20 Bogengreifer fuer druckmaschinen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8404981U 1984-02-18
DE19848404981U DE8404981U1 (de) 1984-02-18 1984-02-18 Bogengreifer fuer druckmaschinen

Publications (3)

Publication Number Publication Date
EP0152553A2 EP0152553A2 (fr) 1985-08-28
EP0152553A3 EP0152553A3 (en) 1986-01-29
EP0152553B1 true EP0152553B1 (fr) 1988-06-08

Family

ID=6763737

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84114016A Expired EP0152553B1 (fr) 1984-02-18 1984-11-20 Pince de feuille pour machine à imprimer

Country Status (5)

Country Link
US (1) US4592279A (fr)
EP (1) EP0152553B1 (fr)
JP (1) JPS60190359A (fr)
AT (1) ATE34938T1 (fr)
DE (1) DE8404981U1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4315844A1 (de) * 1992-07-22 1994-01-27 Heidelberger Druckmasch Ag Bogengreifer an einem papierführenden Zylinder einer Druckmaschine

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3623405A1 (de) * 1986-07-11 1988-02-04 Miller Johannisberg Druckmasch Bogengreifer fuer bogenverarbeitende maschinen
DE3644484A1 (de) * 1986-12-24 1988-07-07 Heidelberger Druckmasch Ag Greifereinrichtung fuer eine druckmaschine
DE3739169C1 (de) * 1987-11-19 1989-06-01 Roland Man Druckmasch Greiferspitze fuer eine Bogengreifereinrichtung
GB8825909D0 (en) * 1988-11-04 1988-12-07 Showell A W Sugicraft Ltd Pedicle engaging means
DE3921474A1 (de) * 1989-06-30 1991-01-10 Heidelberger Druckmasch Ag Bogengreifereinrichtung fuer bogenrotationsdruckmaschinen
DE4127713C2 (de) * 1991-08-22 1996-03-21 Koenig & Bauer Albert Ag Greifer für Bogenrotationsdruckmaschinen
US5201516A (en) * 1992-05-07 1993-04-13 Xerox Corporation Sheet gripping apparatus
GB2268928B (en) * 1992-07-22 1995-10-18 Heidelberger Druckmasch Ag Sheet gripper for a paper-carrying cylinder of a sheet-fed printing press
JPH06100197A (ja) * 1992-09-21 1994-04-12 Xerox Corp シート掴み機構
DE4317429C2 (de) * 1993-05-26 2001-06-13 Heidelberger Druckmasch Ag Vorrichtung zur drehfesten im Phasenwinkel stufenlos einstellbaren Befestigung eines Greiferanschlages
US5396842A (en) * 1993-09-03 1995-03-14 Halm Industries Co., Inc. Printing press including improved gripper assembly
DE4330610A1 (de) * 1993-09-09 1995-03-16 Roland Man Druckmasch Bogengreifer für eine Bogen verarbeitende Maschine
US5516096A (en) * 1994-05-10 1996-05-14 Polaroid Corporation Method and apparatus for securing a flexible sheet to a rotatable supporting surface
US5901955A (en) * 1996-09-25 1999-05-11 Heidelberg Finishing Systems, Inc. Gripper seat
DE19901698B4 (de) * 1998-02-11 2008-01-24 Heidelberger Druckmaschinen Ag Vorrichtung zum Transport von Bogen oder Falzprodukten
DE10018830A1 (de) * 1999-11-24 2001-10-31 Koenig & Bauer Ag Rollenhebel zur Steuerung von Greifern
US7229085B2 (en) 2004-08-09 2007-06-12 The Prophet Corp. Ball storage cart
DE102011085562A1 (de) 2011-11-02 2013-05-02 manroland sheetfed GmbH Bogenverarbeitungsmaschine mit einer Greifereinrichtung
DE102011085563B4 (de) 2011-11-02 2022-01-20 manroland sheetfed GmbH Bogenverarbeitungsmaschine mit einer Greifereinrichtung
US20140020583A1 (en) * 2012-07-17 2014-01-23 Avi Barazani Adaptable impression drum
CN108203010B (zh) * 2016-12-20 2021-03-09 博斯特（上海）有限公司 牙排锁定装置和片材处理设备
CN114652999B (zh) * 2022-04-07 2023-07-07 江西理工大学 一种便于调节的体育用跳高横杆

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1483057A (en) * 1922-03-11 1924-02-05 August W Warsen Gripper for printing presses
US1564309A (en) * 1924-03-28 1925-12-08 Harris Automatic Press Co Sheet gripper
US1542734A (en) * 1924-05-27 1925-06-16 Harold W Sherfy Sheet gripper
US2418065A (en) * 1940-10-16 1947-03-25 Bobst Henri Blank feeding means
DE1047212B (de) * 1956-10-25 1958-12-24 Maschf Augsburg Nuernberg Ag Greifer fuer Druckmaschinen
DE1052414B (de) * 1956-12-20 1959-03-12 Maschf Augsburg Nuernberg Ag Greifer fuer Druckmaschinen
US2906204A (en) * 1957-06-24 1959-09-29 Cottrell Company Gripper assemblies
LU42850A1 (fr) * 1961-12-14 1963-03-15
DE1908181A1 (de) * 1969-02-19 1970-11-05 Roland Offsetmaschf Klemmgreifer fuer Bogenrotationsdruckmaschinen
US4058307A (en) * 1975-11-03 1977-11-15 American Screen Printing Equipment Company Feed and takeoff assembly
DD143150A1 (de) * 1979-05-23 1980-08-06 Helmut Schoene Bogengreifereinrichtung
JPS57182443A (en) * 1981-05-08 1982-11-10 Komori Printing Mach Co Ltd Front guide device for sheet fed press

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4315844A1 (de) * 1992-07-22 1994-01-27 Heidelberger Druckmasch Ag Bogengreifer an einem papierführenden Zylinder einer Druckmaschine
DE4315844C2 (de) * 1992-07-22 1999-12-02 Heidelberger Druckmasch Ag Bogengreifer an einem papierführenden Zylinder einer Bogendruckmaschine

Also Published As

Publication number Publication date
DE8404981U1 (de) 1984-05-10
US4592279A (en) 1986-06-03
JPH0449465B2 (fr) 1992-08-11
EP0152553A3 (en) 1986-01-29
ATE34938T1 (de) 1988-06-15
JPS60190359A (ja) 1985-09-27
EP0152553A2 (fr) 1985-08-28

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