EP0803355A1 - Cylindre de transfert - Google Patents

Cylindre de transfert Download PDF

Info

Publication number
EP0803355A1
EP0803355A1 EP97105982A EP97105982A EP0803355A1 EP 0803355 A1 EP0803355 A1 EP 0803355A1 EP 97105982 A EP97105982 A EP 97105982A EP 97105982 A EP97105982 A EP 97105982A EP 0803355 A1 EP0803355 A1 EP 0803355A1
Authority
EP
European Patent Office
Prior art keywords
transfer cylinder
channel
leading
leading edge
recess
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
EP97105982A
Other languages
German (de)
English (en)
Other versions
EP0803355B1 (fr
Inventor
Günter Koppelkamm
Gerhard Zuber
Jochen Vogel
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 EP0803355A1 publication Critical patent/EP0803355A1/fr
Application granted granted Critical
Publication of EP0803355B1 publication Critical patent/EP0803355B1/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
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/08—Cylinders
    • B41F13/085—Cylinders with means for preventing or damping vibrations or shocks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F30/00—Devices for attaching coverings or make-ready devices; Guiding devices for coverings
    • B41F30/04—Devices for attaching coverings or make-ready devices; Guiding devices for coverings attaching to transfer cylinders

Definitions

  • the invention relates to a transfer cylinder according to the preamble of claim 1.
  • a transfer cylinder for a web-fed rotary printing press which is equipped with a printing blanket, the ends of which can be inserted into an axially parallel channel, and an elastically deformable peripheral region on the edge of the leading cylinder in the direction of rotation of the transfer cylinder Owns channel.
  • this circumferential area is stiffened on the channel side by a rigid support element forming the leading edge to prevent deformation of the elastically deformable peripheral region by the tension force acting on the leading end.
  • DE-OS 16 36 312 describes a shock absorbing device without a support element for a transfer cylinder of a sheet-fed rotary printing press. Due to the wide tensioning channel available in sheet-fed rotary printing presses, which cannot be implemented in web-fed rotary printing machines, on the other hand, an almost tangential tensioning of both ends of the printing blanket that does not stress the edges of the tensioning channel is possible.
  • the invention has for its object to provide a transfer cylinder according to the preamble of claim 1, the one hand effective reduction and, on the other hand, an effective damping of the channel surges that occur.
  • the start-up chamfer in the area of the leading edge of the channel compensates for a full print on the substrate up to this edge, especially a bulge of the printing blanket which forms on the latter during operation, so that the impact load is reduced.
  • This also involves a lower load on the leading end of the printing blanket, which means that there is no need for its special tensioning in the channel, so that the elastically deformable region of the transfer cylinder in the region of the leading edge is unrestrictedly used as a spring-damping element for receiving the remaining ones Channel impacts and thus to avoid cylinder vibrations excitable by the latter can be used, the damping effect being effectively reinforced by the additional introduction of a vibration-damping material - for example a casting elastomer which hardens at room temperature and has a Shore hardness A 80-98 - into the recess.
  • the associated drawing shows a schematic representation of a transfer cylinder with a leading end of a printing blanket that is not clamped in the channel and a trailing end that is tensioned by means of a tensioning shaft.
  • a printing blanket 2 On the circumference of a transfer cylinder 1, a printing blanket 2 is arranged, the two ends 3; 4 can be inserted in an axially parallel channel 5, the end 3 leading in the direction of rotation of the transfer cylinder 1 being hooked into a recess 7 of the leading channel surface 8 only by means of a side extension 6 and the trailing end 4 being both held and radially clamped by means of a tension shaft 9 is.
  • the leading edge 10 of the channel 5 is provided with a starting chamfer 11 and the trailing edge 12 with in order to reduce channel bumps during operation and thus cylinder vibrations which impair print quality as a result of rolling over by a printing unit cylinder (not shown) employed on the transfer cylinder 1 in the form of a counterpressure or forme cylinder a run-off bevel 13, which is of the same design as a mirror image of the start-up bevel 11.
  • the start-up chamfer 11 and the run-off chamfer 13 are designed as circumferential flats of the transfer cylinder, which radially reset on the leading and trailing edges 10 and 12, respectively, at the greatest distance from the circular peripheral contour 14 of the transfer cylinder 1, starting with a constant reduction of this distance in the circumferential direction end a few millimeters around the circumference. So that at both edges 10; 12 while ensuring a full printout on the printing material up to these edges, a bead of the printing blanket 2, which bulge is formed on the latter during operation, is compensated in the sense of reducing the impact load.
  • the transfer cylinder 1 has an elastically deformable peripheral region B on the leading edge 10 of the channel 5, in that a slot-shaped recess 15, which is offset radially inward relative to the circumference, begins at the leading channel surface 8, causing the greatest elastic deformability and increasing in the circumferential direction with a constantly increasing distance extends to the extent.
  • the damping of the shock load is further enhanced by filling the recess 15 with a particularly vibration-damping material.
  • a pourable elastomer 16 which can be poured into the recess 15 and which then cures at room temperature up to a Shore hardness A 80 to 98 is suitable for this purpose.
  • the tensioning shaft 9 which is mounted in a bore 17 that widens the channel 5 inside, has a radial slot 18 on the circumference, into which the trailing end 4 of the printing blanket placed on its circumference after the leading end 3 has been hooked into the recess 7 by twisting the transfer cylinder 1 2 can be inserted through the channel opening 19 with the corresponding position of the tension shaft 9. Subsequently, the trailing end 4 is tensioned by rotating the tensioning shaft 9 into the position shown in the drawing and thus the flexible printing blanket 2 is brought into full contact with the circumference of the transfer cylinder 1.
  • the tension shaft 9 is equipped on its circumference with a plurality of flats 20 to 23 offset in the circumferential direction, which, with the corresponding position of the tension shaft 9, the different functional sequences for the separate insertion of the ends 3; 4 in and ensure their securing, fixation or tensioning in and removal from channel 5.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Printing Plates And Materials Therefor (AREA)
EP97105982A 1996-04-24 1997-04-11 Cylindre de transfert Expired - Lifetime EP0803355B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19616338A DE19616338A1 (de) 1996-04-24 1996-04-24 Übertragungszylinder
DE19616338 1996-04-24

Publications (2)

Publication Number Publication Date
EP0803355A1 true EP0803355A1 (fr) 1997-10-29
EP0803355B1 EP0803355B1 (fr) 1999-11-10

Family

ID=7792289

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97105982A Expired - Lifetime EP0803355B1 (fr) 1996-04-24 1997-04-11 Cylindre de transfert

Country Status (2)

Country Link
EP (1) EP0803355B1 (fr)
DE (2) DE19616338A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006044979A1 (de) * 2006-09-23 2008-04-10 Man Roland Druckmaschinen Ag Druckwerk einer Druckmaschine
DE102006058667B3 (de) * 2006-12-13 2008-02-07 Koenig & Bauer Aktiengesellschaft Druckzylinder für Rollenoffsetdruckmaschine
DE102007006042B3 (de) * 2007-02-07 2008-09-18 Koenig & Bauer Aktiengesellschaft Verfahren zum Spannen eines Aufzugs und eine Spannvorrichtung

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3589285A (en) * 1970-01-20 1971-06-29 Harris Intertype Corp Cylinder with yieldable periphery
DE2613688A1 (de) * 1976-03-31 1977-10-13 Maschf Augsburg Nuernberg Ag Bogen-rotationsdruckmaschine
DE3305001A1 (de) * 1982-05-05 1983-11-10 VEB Kombinat Polygraph "Werner Lamberz" Leipzig, DDR 7050 Leipzig Rotationsdruckmaschine
FR2539673A1 (fr) * 1983-01-21 1984-07-27 Wifag Maschf Cylindre porte-blanchet en caoutchouc pour machines a imprimer rotatives
US4635550A (en) * 1985-03-11 1987-01-13 American Roller Company Gap filler blanket for printing cylinder

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2613687B2 (de) * 1976-03-31 1979-05-31 Maschinenfabrik Augsburg-Nuernberg Ag, 8900 Augsburg Gununituchzylinder einer Rollen-Rotations-Offsetdruckmaschine mit einer Abflachung am Spannkanal

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3589285A (en) * 1970-01-20 1971-06-29 Harris Intertype Corp Cylinder with yieldable periphery
DE2613688A1 (de) * 1976-03-31 1977-10-13 Maschf Augsburg Nuernberg Ag Bogen-rotationsdruckmaschine
DE3305001A1 (de) * 1982-05-05 1983-11-10 VEB Kombinat Polygraph "Werner Lamberz" Leipzig, DDR 7050 Leipzig Rotationsdruckmaschine
FR2539673A1 (fr) * 1983-01-21 1984-07-27 Wifag Maschf Cylindre porte-blanchet en caoutchouc pour machines a imprimer rotatives
US4635550A (en) * 1985-03-11 1987-01-13 American Roller Company Gap filler blanket for printing cylinder

Also Published As

Publication number Publication date
DE59700676D1 (de) 1999-12-16
EP0803355B1 (fr) 1999-11-10
DE19616338A1 (de) 1997-10-30

Similar Documents

Publication Publication Date Title
DE3540581C2 (fr)
DE4102858C2 (fr)
EP0844082A3 (fr) Dispositif de serrage pour une machine à imprimer rotative
DE3532003C2 (fr)
EP0060939B1 (fr) Cylindre de plaque avec dispositif de fixation des plaques
EP0803355B1 (fr) Cylindre de transfert
DE3538308C2 (de) Vorrichtung zum Aufziehen eines Gummituches auf einen Gummituchzylinder einer Rotationsdruckmaschine
EP0683041B1 (fr) Unité d'impression pour imprimer blanchet-contre-blanchet
EP0279295B1 (fr) Unité d'encrage
DE2613688C2 (de) Gummituchzylinder für eine Bogen-Rotationsoffsetdruckmaschine
EP0519302B1 (fr) Dispositif pour la fixation de blanchets d'imprimerie sur des cylindres de transfert ou offset
DE8433674U1 (de) Vorrichtung zum aufziehen eines gummituches auf einen gummituchzylinder einer rotationsdruckmaschine
DE3346217C2 (de) Gummituchzylinder für Rollenrotations-Druckmaschinen
DE3315506A1 (de) Offset-tuch fuer den offset-zylinder des druckwerks einer offset-druckmaschine
DE3434642C1 (de) Stoßfreie Druckplatten- und Gummituchspannvorrichtung an Druckwerkszylindern von Rotationsdruckmaschinen
DE19602102A1 (de) Vorrichtung zum Aufbringen eines Drucktuches auf einen Gummituchzylinder einer Rotationsdruckmaschine
DE19516066C2 (de) Bogenführende Trommel, insbesondere Auslegetrommel, einer Bogenrotationsdruckmaschine
DE2613687B2 (de) Gununituchzylinder einer Rollen-Rotations-Offsetdruckmaschine mit einer Abflachung am Spannkanal
DE9303835U1 (de) Druckeinheit einer Offset-Rotationsdruckmaschine
EP1712360A2 (fr) Dispositif de transfert d'encre d'une machine d'impression
DE4233261C2 (de) Vorrichtung zur Bahnführung, mit Perforiermöglichkeit in einer Rollenrotationsdruckmaschine
EP1688251A2 (fr) Unité d'impression d'une machine à imprimer
DE633984C (de) Druckzylinderaufzug fuer Bogenrotationstiefdruckmaschinen
AT204573B (de) Rundformzylinder für Hochdruckmaschinen
DD277049B3 (de) Antrieb fuer mehrfarbenbogendruckmaschinen

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

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE FR GB SE

17P Request for examination filed

Effective date: 19980401

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

17Q First examination report despatched

Effective date: 19981026

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

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB SE

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

Ref country code: FR

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

Effective date: 19991110

REF Corresponds to:

Ref document number: 59700676

Country of ref document: DE

Date of ref document: 19991216

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

Effective date: 20000209

ET Fr: translation filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20000320

Year of fee payment: 4

Ref country code: DE

Payment date: 20000320

Year of fee payment: 4

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
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: 20010411

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: 20010412

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

Effective date: 20010411

EUG Se: european patent has lapsed

Ref document number: 97105982.9

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: 20020201

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST