EP0683044A2 - Dispositif pour éviter des dommages dans une presse d'imprimerie - Google Patents

Dispositif pour éviter des dommages dans une presse d'imprimerie Download PDF

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Publication number
EP0683044A2
EP0683044A2 EP95107107A EP95107107A EP0683044A2 EP 0683044 A2 EP0683044 A2 EP 0683044A2 EP 95107107 A EP95107107 A EP 95107107A EP 95107107 A EP95107107 A EP 95107107A EP 0683044 A2 EP0683044 A2 EP 0683044A2
Authority
EP
European Patent Office
Prior art keywords
cylinder
arrangement according
energy store
adjusting means
blanket
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
EP95107107A
Other languages
German (de)
English (en)
Other versions
EP0683044B1 (fr
EP0683044A3 (fr
Inventor
Claus August Bolza-Schünemann
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.)
Koenig and Bauer AG
Original Assignee
Koenig and Bauer Albert AG
Koenig and Bauer 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 Koenig and Bauer Albert AG, Koenig and Bauer AG filed Critical Koenig and Bauer Albert AG
Publication of EP0683044A2 publication Critical patent/EP0683044A2/fr
Publication of EP0683044A3 publication Critical patent/EP0683044A3/fr
Application granted granted Critical
Publication of EP0683044B1 publication Critical patent/EP0683044B1/fr
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
    • B41F33/00—Indicating, counting, warning, control or safety devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F33/00—Indicating, counting, warning, control or safety devices
    • B41F33/18—Web break detection

Definitions

  • the invention relates to an arrangement for preventing printing unit damage to web-fed rotary printing presses according to the preamble of claim 1.
  • the invention has for its object to provide an arrangement for preventing printing unit damage in the event of a power failure.
  • the invention has the following advantages in particular: As a result of the arrangement of an energy storage device in the event of failure of the electrical supply emits briefly energy to actuate a control unit, which in turn causes at least one blanket cylinder to pivot for each printing unit in operation, winders have become harmless when the paper web is torn.
  • each journal 17 one each blanket cylinder 2 to 5 is mounted in an eccentric sleeve 18 rotatably arranged in the side frame 21, each eccentric sleeve 18 being connected to the end of a piston rod 24 of the working cylinder 16 on a flange 19 which is fixed to the eccentric sleeve by means of a coupling 21 and an angle lever 23 which is fixed to the side frame.
  • the working cylinder 16 is mounted at its end remote from the piston rod.
  • the parts 16 to 24 are present in duplicate and - apart from the side frame 22 - are referred to as adjusting means 26.
  • the double-acting working cylinder 16 of the actuating means 26 is connected at its ends in each case via a line 27, 28, each with a throttle valve with working connections of a 4/3-way valve 29 with magnetic actuation 31, 32, which are not described in more detail.
  • the directional control valve 29 has a blocking position in its central position.
  • a supply and return line 33, 34 of the directional control valve 29 is connected to a known compressed air reservoir 35 with connection 40 to a known generator system.
  • the first magnet actuation 31 of the directional control valve 29 is connected to openers 36, 37 of a first limit switch 38, which is fixed to the side frame in the vicinity of the axle journal 17 of each blanket cylinder 2 to 5 and whose contact actuation lever is in positive connection with an eccentric bushing-fixed cam 58.
  • NO 41, 42 in a second limit switch 43 are also fixed to the side frame in the vicinity of the journal 17, however arranged at another location on the circumference of the eccentric bushing 18.
  • the contact actuation lever of the limit switch 43 is in a non-positive connection with the surface of the cylinder liner 18 or with a cam 59 fixed to the cylinder liner.
  • Both the break contact 36 of the first limit switch 38 and the make contact 41 of the second limit switch 43 are connected to a first connection of an break contact 44 of a relay 46.
  • the parts 29, 31, 32, 38, 43 are designated as control means 47.
  • An opener 37 of the limit switch 38 and a closer 42 of the limit switch 43 are on the one hand due to the operating voltage UB, z. B. 24 volts DC, and are also connected to inputs E1, E2 of a programmable logic controller 45 (PLC). Outputs of the PLC 45 are connected in parallel with the contacts 36, 41 of the two limit switches 38, 43 via a current backflow preventing diode 48, 49 in order to signal a switch position indicator of the limit switches 38, 43 in the event of a restart after a failure of the electrical supply.
  • PLC programmable logic controller 45
  • the control means 47 are connected to an electrical energy store 51, which consists of a capacitor 54 connected to ground 53 UB, which is preceded by a diode 52.
  • a diode 55 is connected upstream of the diode 52 for the purpose of current limitation.
  • a Protective resistor 61 e.g. B. of a kiloohm.
  • the capacitance of the capacitor 54 can be 2 times 10 nanofarads at 40 volts.
  • the resistor 55 connected upstream of the diode 52 can be 1 ohm.
  • the operation of the arrangement is as follows: During the operating state, in addition to the motor drives for the printing machine, not shown, the blanket cylinders 2 to 5 of the satellite printing unit 12 are in operation, so that the blanket cylinders 2 and 3 against each other and the blanket cylinders 4 and 5 against the Work impression cylinder 1.
  • the capacitor 54 which is connected to ground 53, is charged during operation by contact with the operating voltage UB.
  • the relay 46 connected in parallel with the energy store 51 has picked up during operation, so that the break contact 44 is open. Thus, the control means 47 have not responded.
  • the relay 46 drops out, the break contact 44 closes and the energy of the capacitor 54 discharges through the break contact 36 of the first limit switch 38, so that the solenoid actuation 31 of the directional control valve 29 at least receives voltage from the capacitor 54 for a second, so that the piston 57 is connected to the piston rod 24 of the working cylinder 16 from the compressed air reservoir 35 via the directional control valve 29 and the line 27, so that the piston 57 moves from its left end position towards the right end position is, whereby the blanket cylinder 5 is pivoted by an amount d both from the impression cylinder 1 and from the plate cylinder 10.
  • the piston 57 of the working cylinder 16 is in the right end position D and the mark 39 on the eccentric bush 18 is in accordance with that on the Side frame 22 applied mark D. If the operating voltage UB then fails, the break contact 44 of the relay 46 closes, the break contacts 36, 37 of the limit switch 38 are open and the make contacts 41, 42 of the limit switch 43 are closed.
  • the contact actuating lever of the limit switch 43 is in connection with the cam 59 remote from the eccentric bushing when the piston 57 of the working cylinder 16 is actuated from the right working position D to the pressure cut-out C.
  • the limit switch 43 switches from so that the closers 41, 42 open and the print stop C of the blanket cylinder 5 is reached (dashed line in Fig. 2), so that paper winder can be avoided.

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Rotary Presses (AREA)
EP95107107A 1994-05-20 1995-05-11 Dispositif pour éviter des dommages dans une presse d'imprimerie Expired - Lifetime EP0683044B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4417661A DE4417661C2 (de) 1994-05-20 1994-05-20 Anordnung zum Verhindern von Druckwerksschäden bei einer Rollenrotationsdruckmaschine
DE4417661 1994-05-20

Publications (3)

Publication Number Publication Date
EP0683044A2 true EP0683044A2 (fr) 1995-11-22
EP0683044A3 EP0683044A3 (fr) 1996-12-18
EP0683044B1 EP0683044B1 (fr) 1999-08-04

Family

ID=6518547

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95107107A Expired - Lifetime EP0683044B1 (fr) 1994-05-20 1995-05-11 Dispositif pour éviter des dommages dans une presse d'imprimerie

Country Status (4)

Country Link
US (1) US5588364A (fr)
EP (1) EP0683044B1 (fr)
JP (1) JP2735808B2 (fr)
DE (2) DE4417661C2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1251005A3 (fr) * 2001-04-09 2004-03-03 Tokyo Kikai Seisakusho Ltd. Procédé et dispositif de contrôle des presses rotatives pendant des coupures de courant

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002326342A (ja) * 2001-05-02 2002-11-12 Komori Corp 異常振動監視装置
DE102004004665B4 (de) * 2004-01-30 2005-12-29 Koenig & Bauer Ag Vorrichtung zum Einstellen einer von einer Walze in einem Walzenstreifen auf einen benachbarten Rotationskörper ausgeübten Anpresskraft und zum Anstellen der Walze an den Rotationskörper oder zum Abstellen der Walze von dem Rotationskörper
US10078294B2 (en) * 2014-06-30 2018-09-18 Hp Indigo B.V. Contact control of print blanket to impression drum

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS498283B1 (fr) * 1968-12-18 1974-02-25
US4369705A (en) * 1980-09-24 1983-01-25 Harris Corporation Printing press
DE3244045C2 (de) * 1982-11-27 1984-12-20 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Einrichtung zum Verhindern von Druckwerksschäden bei Papierbahnrissen
DD241396A1 (de) * 1985-09-30 1986-12-10 Polygraph Leipzig Hilfseinrichtung zur druckumstellung
DD242027A1 (de) * 1985-10-31 1987-01-14 Polygraph Leipzig Zusatzeinrichtung zur druckumstellung
DE3917340A1 (de) * 1989-05-27 1990-11-29 Simon Sa Offset-rotationsmaschine
US5272975A (en) * 1990-04-25 1993-12-28 Man Roland Druckmaschinen Ag Throw-on/throw-off device for a blanket cylinder with a printing speed dependent control system for a sheet-fed offset press
DE9115598U1 (de) * 1991-09-09 1992-04-23 Koenig & Bauer AG, 8700 Würzburg Anordnung zum Einstellen von Exzenterbuchsen für Zylinder von Druckmaschinen
US5337664A (en) * 1993-04-08 1994-08-16 Rockwell International Corporation Printing press with blanket cylinder throw off apparatus and method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1251005A3 (fr) * 2001-04-09 2004-03-03 Tokyo Kikai Seisakusho Ltd. Procédé et dispositif de contrôle des presses rotatives pendant des coupures de courant

Also Published As

Publication number Publication date
DE59506507D1 (de) 1999-09-09
DE4417661C2 (de) 1996-06-05
US5588364A (en) 1996-12-31
EP0683044B1 (fr) 1999-08-04
EP0683044A3 (fr) 1996-12-18
DE4417661A1 (de) 1995-11-30
JP2735808B2 (ja) 1998-04-02
JPH07314651A (ja) 1995-12-05

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