EP0657283A1 - Offset printing machine - Google Patents

Offset printing machine Download PDF

Info

Publication number
EP0657283A1
EP0657283A1 EP94202865A EP94202865A EP0657283A1 EP 0657283 A1 EP0657283 A1 EP 0657283A1 EP 94202865 A EP94202865 A EP 94202865A EP 94202865 A EP94202865 A EP 94202865A EP 0657283 A1 EP0657283 A1 EP 0657283A1
Authority
EP
European Patent Office
Prior art keywords
cylinder
blanket
frame
blanket cylinder
printing machine
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.)
Withdrawn
Application number
EP94202865A
Other languages
German (de)
English (en)
French (fr)
Inventor
Adelbert Schoonman
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.)
Machinefabriek HH Drent BV
Original Assignee
Machinefabriek HH Drent BV
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 Machinefabriek HH Drent BV filed Critical Machinefabriek HH Drent BV
Publication of EP0657283A1 publication Critical patent/EP0657283A1/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F7/00—Rotary lithographic machines
    • B41F7/02—Rotary lithographic machines for offset printing
    • B41F7/04—Rotary lithographic machines for offset printing using printing units incorporating one forme cylinder, one transfer cylinder, and one impression cylinder, e.g. for printing on webs
    • 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
    • B41F13/20—Supports for bearings or supports for forme, offset, or impression cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2227/00—Mounting or handling printing plates; Forming printing surfaces in situ
    • B41P2227/20—Means enabling or facilitating exchange of tubular printing or impression members, e.g. printing sleeves, blankets
    • B41P2227/21—Means facilitating exchange of sleeves mounted on cylinders without removing the cylinder from the press

Definitions

  • the invention relates to an offset printing machine comprising a plate cylinder for receiving the block, an inking apparatus mounted at the plate cylinder, a blanket cylinder and an impression cylinder serving to press the material to be printed against the blanket cylinder, with at least one of the cylinders being supported by the frame of the machine in such a way that it is adjustable in relation to the other cylinder or cylinders.
  • Such a machine is known from EP-A-0 453 850. With this machine, at both its ends, the blanket cylinder is supported by bearings mounted in eccentric bushes incorporated in knee levers. By means of the eccentric bushes the blanket cylinder can be adjusted in relation to the other cylinders, and through the knee levers the cylinder is adjustable for switching the machine on and off.
  • the occurence of vibrations can be counteracted in particular by providing for the fact that the blanket cylinder is supported by bearings fixedly mounted in the frame of the printing machine, and that the plate cylinder and the impression cylinder are supported by the frame in such a way, that they are adjustable in relation to the blanket cylinder.
  • the occurence of vibrations can thus be counteracted by supporting the blanket cylinder extremely stable in the machine frame, while the other cylinders can be adjustable .
  • the axes of the three cylinders will be almost in one plane. Due to the fact that the plate cylinder and the impression cylinder are adjustable in relation to the blanket cylinder, a deviation from this plane can occur, but this deviation will only be very small, since the cylinders also need only be slightly adjusted for obtaining an optimum result.
  • the occurence of vibrations can be counteracted further by fixedly mounting the blanket substantially seamless to a clamping bush, which can be slid onto the blanket cylinder owing to a slight expansion, and after that fixedly clamps itself on the cylinder.
  • the cylinder jacket can be provided with openings through which compressed air can be supplied. Owing to this, the diameter of the clamping bush can be enlarged to a very small degree so that movement of the clamping bush on the cylinder is possible.
  • the bearing through which at least the one end of the blanket cylinder is supported in the frame of the machine is received within a part to be mounted to the machine frame and bridging an opening in the frame, said opening being so large that after removing the part, the bush can be moved through the opening on removing it from the blanket cylinder or mounting it on the cylinder.
  • the blanket cylinder need not be removed from the machine in mounting or dismounting a clamping bush.
  • the printing machine shown in the drawing comprises the frame 1, in which the plate cylinder 2, the blanket cylinder 3 and the impression cylinder 4 are supported.
  • the block 5, on which ink can be applied by means of the inking apparatus 6, is fastened to the plate cylinder 2.
  • the ink is transferred onto the blanket 7 of the blanket cylinder 3.
  • the blanket 7 can be situated on a somewhat flexible bush 8 which can be clamped on the cylinder 3 in the way described above.
  • the ink is transferred from the blanket 7 onto the material to be printed 9 at the other side contacting the impression cylinder 4.
  • the material 9 further means known per se will be present.
  • the shaft 10 of the blanket cylinder 3 is supported by the bearing 11, which is incorporated in a ring 12 which is fixedly connected to the frame 1, such as by means of bolts 13, only the axis thereof being indicated.
  • the ring 12 bridges an opening 14 in the frame 1, said opening 14 being so large, that after removing the ring 12, the bush 8 can be moved through the opening 14 on removing it from the blanket cylinder 3 or mounting it on the cylinder.
  • the blanket cylinder is fixedly supported in the frame 1 and the plate cylinder and the impression cylinder are adjustable for determining the proper distance between these cylinders and the blanket cylinder.
  • the axes 19, 20 and 21 of the plate cylinder 2, the blanket cylinder 3 and the impression cylinder 4, respectively, will be substantially in one plane 22.
  • the shafts will be supported in the same way as indicated in Fig. 2.
  • the shaft of the other end of the blanket cylinder can be executed in a simpler way, since on this side there need not be an opening in the frame 1 for passing the clamping bush 8.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rotary Presses (AREA)
EP94202865A 1993-11-29 1994-10-04 Offset printing machine Withdrawn EP0657283A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL9302062 1993-11-29
NL9302062A NL9302062A (nl) 1993-11-29 1993-11-29 Offsetdrukmachine.

Publications (1)

Publication Number Publication Date
EP0657283A1 true EP0657283A1 (en) 1995-06-14

Family

ID=19863198

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94202865A Withdrawn EP0657283A1 (en) 1993-11-29 1994-10-04 Offset printing machine

Country Status (2)

Country Link
EP (1) EP0657283A1 (nl)
NL (1) NL9302062A (nl)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1088651C (zh) * 1997-09-05 2002-08-07 信浓娟糸株式会社 胶版印刷装置
CN1093467C (zh) * 1997-09-05 2002-10-30 信浓绢糸株式会社 橡皮布滚筒及具有该橡皮布滚筒的小胶印装置
CN1093465C (zh) * 1997-09-05 2002-10-30 信浓绢糸株式会社 胶版印刷装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3094067A (en) * 1961-02-22 1963-06-18 Monotype Corp Ltd Cylinders for printing machines
EP0131813A2 (de) * 1983-07-16 1985-01-23 M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft Rollenoffset-Rotationsdruckmaschine
JPS61188145A (ja) * 1985-02-18 1986-08-21 Toyo Seikan Kaisha Ltd 無反動印刷機
EP0277545A2 (de) * 1987-01-31 1988-08-10 M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft Vorrichtung zum Aufbringen einer Hülse auf einen Druckwerkzylinder
EP0453850A1 (de) * 1990-04-25 1991-10-30 MAN Roland Druckmaschinen AG Vorrichtung zur Druckan- und -abstellung eines Gummizylinders im Druckwerk einer Bogen-Offsetdruckmaschine
EP0549936A1 (de) * 1985-12-11 1993-07-07 MAN Roland Druckmaschinen AG Zwischen zwei Druckwerkseitenwänden gelagerter Übertragungszylinder mit einer auswechselbaren Hülse
US5241905A (en) * 1992-10-27 1993-09-07 Heidelberg Harris Inc. Printing unit with releasable bearing clamp

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3094067A (en) * 1961-02-22 1963-06-18 Monotype Corp Ltd Cylinders for printing machines
EP0131813A2 (de) * 1983-07-16 1985-01-23 M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft Rollenoffset-Rotationsdruckmaschine
JPS61188145A (ja) * 1985-02-18 1986-08-21 Toyo Seikan Kaisha Ltd 無反動印刷機
EP0549936A1 (de) * 1985-12-11 1993-07-07 MAN Roland Druckmaschinen AG Zwischen zwei Druckwerkseitenwänden gelagerter Übertragungszylinder mit einer auswechselbaren Hülse
EP0277545A2 (de) * 1987-01-31 1988-08-10 M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft Vorrichtung zum Aufbringen einer Hülse auf einen Druckwerkzylinder
EP0453850A1 (de) * 1990-04-25 1991-10-30 MAN Roland Druckmaschinen AG Vorrichtung zur Druckan- und -abstellung eines Gummizylinders im Druckwerk einer Bogen-Offsetdruckmaschine
US5241905A (en) * 1992-10-27 1993-09-07 Heidelberg Harris Inc. Printing unit with releasable bearing clamp

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 11, no. 10 (M - 552) 10 January 1987 (1987-01-10) *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1088651C (zh) * 1997-09-05 2002-08-07 信浓娟糸株式会社 胶版印刷装置
CN1093467C (zh) * 1997-09-05 2002-10-30 信浓绢糸株式会社 橡皮布滚筒及具有该橡皮布滚筒的小胶印装置
CN1093465C (zh) * 1997-09-05 2002-10-30 信浓绢糸株式会社 胶版印刷装置

Also Published As

Publication number Publication date
NL9302062A (nl) 1995-06-16

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Legal Events

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

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AK Designated contracting states

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Designated state(s): DE FR IT NL

17P Request for examination filed

Effective date: 19951129

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Effective date: 19961203

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18D Application deemed to be withdrawn

Effective date: 19970415