EP0631867A1 - Pince pour machine d'impression pour feuilles - Google Patents

Pince pour machine d'impression pour feuilles Download PDF

Info

Publication number
EP0631867A1
EP0631867A1 EP94108400A EP94108400A EP0631867A1 EP 0631867 A1 EP0631867 A1 EP 0631867A1 EP 94108400 A EP94108400 A EP 94108400A EP 94108400 A EP94108400 A EP 94108400A EP 0631867 A1 EP0631867 A1 EP 0631867A1
Authority
EP
European Patent Office
Prior art keywords
gripper
shaft
finger
tip
active surfaces
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
EP94108400A
Other languages
German (de)
English (en)
Other versions
EP0631867B1 (fr
Inventor
Klemens Kemmerer
Harald Bayer
Valentin Gensheimer
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
Publication of EP0631867A1 publication Critical patent/EP0631867A1/fr
Application granted granted Critical
Publication of EP0631867B1 publication Critical patent/EP0631867B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • B41F21/10—Combinations of transfer drums and grippers
    • B41F21/104—Gripper details

Definitions

  • the invention relates to a preferably half-shell-shaped gripper for sheet-fed printing machines according to the preamble of the main claim.
  • a half-shell-shaped sheet gripper of this type is known from DE 3 623 405 C2.
  • the gripper consists of a box-shaped gripper finger and a driver, the ends of which are adjacent to the transfer point and are spread by a compression spring. At the opposite end, an adjusting screw for regulating the distance is arranged.
  • the driver is attached to the gripper shaft by means of a screw, which also carries the gripper finger. Due to the box shape, the gripper finger forms a coherent circumferential surface which, together with the gripper shaft, represents an active surface.
  • a half-shell-shaped bow gripper which has a guide groove paired with the gripper spindle and gripper finger with a guide ring or guide ball, and two opposite springs.
  • the disadvantage here is a very complex manufacture and an unsafe lateral guidance.
  • the object of the invention is to develop a solution which noticeably minimizes the disadvantages mentioned.
  • the present solution represents a sheet gripper, whose efforts to move the printing material when the gripper closes are very low.
  • the gripper is preferably designed as a half-shell-shaped gripper. Ie the gripper finger encloses the gripper shaft in a circular sector. In the area of the free ends of the gripper finger, separate active surfaces are arranged in contact with the gripper shaft to absorb the frictional moments, between which an overhead recess is arranged in each side wall. These active surfaces preferably extend the width of a gripper and the recesses are congruent.
  • the gripper can be used for certain applications, e.g. to increase occupational safety, also be designed with full skin.
  • the gripper finger then surrounds the gripper shaft on the circumference, has the same top recess, analogous to the half-shell design, between the likewise preferably gripper finger-wide active surfaces.
  • the position of the active surfaces is analogous to that of the half-shell-shaped gripper in the area between the first and fourth quadrants at the active surface facing the gripper tip and in the second quadrant at the active surface facing away from the gripper tip (each with the gripper closed).
  • the recess at the top can optionally be assigned a recess at the bottom (circular sector at the bottom of the gripper shaft) between the active surfaces.
  • the two active surfaces can also be designed as a coherent active surface.
  • the active surface encloses the gripper shaft in a circular sector and forms a full angle with the recess at the top.
  • the gripper In the case of a half-shell design, the gripper is always pressed onto the gripper shaft on defined lines via the two separate active surfaces when opening and closing. The gripper finger is guided freely on the gripper shaft and cannot tilt or lift off the gripper shaft. Any tolerances between the gripper fingers and the gripper shaft are compensated for and the inclination of the gripper tip is further reduced.
  • the gripper has a low mass and high rigidity with a high holding force (spring force). When executed as a half-shell gripper the assembly / disassembly effort is reduced.
  • the stiffness of the gripper is further increased by incorporating a recess in the top of the gripper holder and forming a releasably form-fitting connection with the web of the gripper finger.
  • the separate active surfaces of the gripper finger form a triangle of forces in connection with the resulting force leading through the center of the gripper shaft.
  • the forces are determined by the arrangement of the features: adjusting element, screw, compression spring and holding surface.
  • a half-shell-shaped gripper is arranged on a gripper shaft 1 to enclose the circular sector lying at the top by approximately 180 °.
  • the gripper shaft 1 is mounted in a cylinder pit, not shown, of an arc-guiding cylinder.
  • the grippers are operatively connected to known gripper cuffs 6 of the sheet-guiding cylinder.
  • the gripper consists of a gripper finger 2, which is box-shaped on the outside.
  • a gripper holder 4 is arranged between its side walls 17.
  • the gripper finger 2 has an opening on the bottom through which the gripper holder 4 projects with its partial encircling surface 10 onto the gripper shaft 1.
  • the gripper finger 2 has separate active surfaces 8, 9 in the region of its free ends, which are in frictional contact with the gripper shaft 1.
  • the active surface 8 is in the second quadrant and the active surface 9 is between the first and fourth quadrants.
  • the gripper finger 2 has a recess 11 in the region of the side walls 17.
  • the active surfaces 8, 9 form a triangle of forces with the resulting force leading through the center of the gripper shaft 1.
  • the resulting forces when the gripper is closed (P S ) and when the gripper is open (P A ) lie on the circumference of the gripper shaft 1 as closely as possible in the first quadrant. In the present case, approximately 1/3 of the forces are absorbed by the active surface 8 and approximately 2/3 of the forces by the active surface 9.
  • the adjusting element 13 is screwed into a threaded bore of a web 16 connecting the side walls 17 at the free end of the gripper finger 2 and supports the gripper finger 2 against the gripper holder 4.
  • the compression spring 5 is arranged on the adjusting element 13 on the opposite side, between the gripper shaft 3 and the gripper stop 6.
  • a gripper tip 3 is arranged on the gripper finger 2 and, in the present example, is made as a single component.
  • the gripper tip 3 is operatively connected to the gripper strike 6.
  • the gripper tip 3 has a holding surface 15 that comes into contact with the printing material.
  • the holding surface 15 is raised from the gripper tip 3 and runs out through circumferential radii R to the gripper tip 3.
  • the radii R of the holding surface 15 are in the range from 0.6 to 1.6 mm.
  • the radii R running parallel to the gripper shaft 1 are preferably larger than the radii R running parallel to the side walls 17. This has the advantage that the gripper strikes the printing surface gently with the holding surface 15 when closing.
  • the radius R adjacent to the gripper shaft 1 at the gripper tip 3 has an undercut 14 and runs out into it.
  • the active surfaces 8, 9 have a reduction in the kinetic friction (breakaway torque) integrated lubricant depots. Alternatively, sliding bearing materials embedded in the active surface 8, 9 can also improve the friction and wear conditions.
  • the gripper tip 3 On the side pointing in the direction of the gripper shaft 1, the gripper tip 3 is designed as a web 16 connecting the side walls 17 of the gripper finger 2.
  • the gripper holder 4 has, on the side corresponding to the compression spring 5, a recess 12 running on the upper side parallel to the gripper shaft 1.
  • the recess 12, with the lower edge of the web 16, represents a releasably form-fitting connection.
  • the gripper holder 4 is connected to the Gripper shaft 1 connected and clamps the gripper finger 2 with its active surfaces 8, 9 against the gripper shaft 1.

Landscapes

  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
EP94108400A 1993-07-01 1994-06-01 Pince pour machine d'impression pour feuilles Expired - Lifetime EP0631867B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4321850 1993-07-01
DE4321850A DE4321850A1 (de) 1993-07-01 1993-07-01 Greifer für Bogendruckmaschinen

Publications (2)

Publication Number Publication Date
EP0631867A1 true EP0631867A1 (fr) 1995-01-04
EP0631867B1 EP0631867B1 (fr) 1996-09-04

Family

ID=6491660

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94108400A Expired - Lifetime EP0631867B1 (fr) 1993-07-01 1994-06-01 Pince pour machine d'impression pour feuilles

Country Status (5)

Country Link
US (1) US5542657A (fr)
EP (1) EP0631867B1 (fr)
JP (1) JP2921644B2 (fr)
AT (1) ATE142148T1 (fr)
DE (2) DE4321850A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH689976A5 (fr) * 1994-05-24 2000-02-29 Bobst Sa Dispositif de commande de la prise d'un élément en plaque par des pinces au sein d'une machine de traitement de tels éléments.
DE19634947C1 (de) * 1996-08-29 1998-01-08 Roland Man Druckmasch Justiervorrichtung für Druckplatten
DE19816512B4 (de) * 1997-08-18 2008-08-28 Heidelberger Druckmaschinen Ag Bogengreifer in einer Bogenrotationsdruckmaschine
DE19927695A1 (de) * 1998-07-06 2000-01-13 Heidelberger Druckmasch Ag Greifer für einen bogentransportierenden Zylinder oder Trommel einer Rotationsdruckmaschine
DE10152592A1 (de) * 2001-10-24 2003-05-08 Koenig & Bauer Ag Greifer-/Greiferwellesystem
CN101024328B (zh) 2006-02-20 2010-12-15 海德堡印刷机械股份公司 用于传送纸张的装置
US8847013B2 (en) 2008-01-17 2014-09-30 Pioneer Hi Bred International Inc Compositions and methods for the suppression of target polynucleotides from lepidoptera
DE102010010140B4 (de) 2009-03-20 2020-04-09 Heidelberger Druckmaschinen Ag Vorrichtung zum Fördern eines Bogens
DE102012013635B4 (de) 2011-08-01 2022-11-10 Heidelberger Druckmaschinen Intellectual Property Ag & Co. Kg Greiferanordnung zum Fördern eines Bogens
DE202023001595U1 (de) 2023-07-29 2023-09-25 Klemens Kemmerer Greiferspitze für Bogentransport

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1174804B (de) * 1962-06-26 1964-07-30 Planeta Veb Druckmasch Werke Bogengreifer an bogenverarbeitenden Maschinen
DE3623405A1 (de) * 1986-07-11 1988-02-04 Miller Johannisberg Druckmasch Bogengreifer fuer bogenverarbeitende maschinen
EP0476244A1 (fr) * 1990-08-18 1992-03-25 MAN Roland Druckmaschinen AG Doigt de pince d'un arbre à pinces d'une machine d'impression alimentée en feuilles

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE101353C (fr) *
DD101353A1 (fr) * 1972-12-28 1973-11-12
DE2725035C3 (de) * 1977-06-03 1979-11-22 Koenig & Bauer Ag, 8700 Wuerzburg Greifer
DE3632768C1 (de) * 1986-09-26 1988-01-14 Roland Man Druckmasch Klemmgreifer fuer Bogenrotationsdruckmaschinen
DE3739169C1 (de) * 1987-11-19 1989-06-01 Roland Man Druckmasch Greiferspitze fuer eine Bogengreifereinrichtung
DE4127713C2 (de) * 1991-08-22 1996-03-21 Koenig & Bauer Albert Ag Greifer für Bogenrotationsdruckmaschinen
DE4239254C2 (de) * 1992-11-21 2000-09-07 Koenig & Bauer Ag Einrichtung zum Einstellen der Anlegmarken

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1174804B (de) * 1962-06-26 1964-07-30 Planeta Veb Druckmasch Werke Bogengreifer an bogenverarbeitenden Maschinen
DE3623405A1 (de) * 1986-07-11 1988-02-04 Miller Johannisberg Druckmasch Bogengreifer fuer bogenverarbeitende maschinen
EP0476244A1 (fr) * 1990-08-18 1992-03-25 MAN Roland Druckmaschinen AG Doigt de pince d'un arbre à pinces d'une machine d'impression alimentée en feuilles

Also Published As

Publication number Publication date
DE4321850A1 (de) 1995-01-12
DE59400575D1 (de) 1996-10-10
ATE142148T1 (de) 1996-09-15
EP0631867B1 (fr) 1996-09-04
US5542657A (en) 1996-08-06
JP2921644B2 (ja) 1999-07-19
JPH0732583A (ja) 1995-02-03

Similar Documents

Publication Publication Date Title
EP2021654B1 (fr) Tendeur avec canal dans le corps de pression
DE60109309T2 (de) Riemenspanner
EP0631867B1 (fr) Pince pour machine d'impression pour feuilles
EP1878674B1 (fr) Maillon pour chaîne de transport pour une machine-outil et une machine à profiler à deux bouts avec des chaînes à partir de ce maillon
EP0213397A2 (fr) Pince à ressort pour rotatives à feuille
EP1124123B1 (fr) Dispositif de fixation de poids de compensation de balourd
DE2421553A1 (de) Elastisches halteelement zur schienenbefestigung
DE3632768C1 (de) Klemmgreifer fuer Bogenrotationsdruckmaschinen
EP0401618A1 (fr) Bogie pour véhicules ferroviaires rapides
DE2753296C2 (de) Schmitzringanordnung zwischen zwei Druckwerkszylindern
EP0212366A2 (fr) Pince à ressort pour rotatives à feuille
EP0997655A1 (fr) Guide linéaire
DE29800079U1 (de) Auf der Felge eines Kraftfahrzeugrades verspannbarer Notlaufeinsatz
DE2437584A1 (de) Farbkasten an druckmaschinen
DE102008039821A1 (de) Drehhemmungseinrichtung für ein Fahrzeug
DE19611124B4 (de) Bogenübertragungseinrichtung einer Bogenrotationsdruckmaschine
DE4330610A1 (de) Bogengreifer für eine Bogen verarbeitende Maschine
DE69302227T2 (de) Bördelkopf für Konservendosen mit Spielregulierungsmitteln
DE4214191C2 (fr)
DE2951225C2 (de) Federsatz eines Relais mit biegungsgeschwächten Kontaktfedern
DE3519293A1 (de) Greifersystem
EP0372197B1 (fr) Dispositif d'acquisition d'un signal de charge d'un essieu
DE3146836A1 (de) Bogengreifereinrichtung an bogenbe- und verarbeitenden maschinen
DE3114424A1 (de) Tuerscharnier mit einstellanordnung zur seiten- und hoeheneinstellung
DE1602423B2 (de) Biege- und stanzautomat zum herstellen von formteilen aus draht oder band

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19940615

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE ES FR GB IT LI NL SE

17Q First examination report despatched

Effective date: 19950308

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

ITF It: translation for a ep patent filed
GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE ES FR GB IT LI NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19960904

REF Corresponds to:

Ref document number: 142148

Country of ref document: AT

Date of ref document: 19960915

Kind code of ref document: T

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: E. BLUM & CO. PATENTANWAELTE

ET Fr: translation filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19960904

REF Corresponds to:

Ref document number: 59400575

Country of ref document: DE

Date of ref document: 19961010

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20010517

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20010531

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20010618

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20010621

Year of fee payment: 8

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20020531

Year of fee payment: 9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020602

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20020605

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20020611

Year of fee payment: 9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020630

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020630

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020630

BERE Be: lapsed

Owner name: *MAN ROLAND DRUCKMASCHINEN A.G.

Effective date: 20020630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030101

EUG Se: european patent has lapsed
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20030101

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030601

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030601

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20030601

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040227

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050601

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20110622

Year of fee payment: 18

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130101

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 59400575

Country of ref document: DE

Effective date: 20130101