EP0736384A1 - Dispositif pour enclencher ou déclencher l'impression - Google Patents

Dispositif pour enclencher ou déclencher l'impression Download PDF

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Publication number
EP0736384A1
EP0736384A1 EP96105039A EP96105039A EP0736384A1 EP 0736384 A1 EP0736384 A1 EP 0736384A1 EP 96105039 A EP96105039 A EP 96105039A EP 96105039 A EP96105039 A EP 96105039A EP 0736384 A1 EP0736384 A1 EP 0736384A1
Authority
EP
European Patent Office
Prior art keywords
blanket cylinder
cylinder
printing
actuating means
ternary
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
EP96105039A
Other languages
German (de)
English (en)
Other versions
EP0736384B1 (fr
Inventor
Peter Hummel
Robert Ortner
Helmut Schild
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 EP0736384A1 publication Critical patent/EP0736384A1/fr
Application granted granted Critical
Publication of EP0736384B1 publication Critical patent/EP0736384B1/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
    • B41F33/04—Tripping devices or stop-motions
    • B41F33/08—Tripping devices or stop-motions for starting or stopping operation of cylinders
    • 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
    • B41F13/24—Cylinder-tripping devices; Cylinder-impression adjustments
    • B41F13/26—Arrangement of cylinder bearings
    • B41F13/28—Bearings mounted eccentrically of the cylinder axis

Definitions

  • the invention relates to a device for pressure switching on and off according to the preamble of claim 1 and a method for pressure switching according to the preamble of claim 6.
  • the object of the present invention is therefore to expand a device according to the preamble of claim 1 in such a way that there is little construction effort result in expanded application possibilities.
  • the substrate thickness for remote adjustment can be entered in the individual printing units, in particular via the machine control center, and depending on the value of the substrate thickness entered, the associated control of switching the blanket cylinder on and off either from the counter-pressure and plate cylinder or only triggers from the plate cylinder.
  • Fig. 1 shows the arrangement on the B-side of the pressure switching device according to the invention.
  • This consists of two adjusting means 1, 2 arranged side by side and designed as double-acting pneumatic cylinders, the piston rods 3, 4 of which are articulated on a ternary link 5 designed as a coupling.
  • the actuating means 2 is fixedly mounted on its base frame, whereas the actuating means 1 is articulated on a further ternary member 16, the function of which is explained further below.
  • the coupling-like ternary member 5 is articulated on the pivotable end of a lever 6 attached to the release shaft 7.
  • the shift shaft 7 extends between the two frame walls of the printing unit, not shown here.
  • a further lever 8 is attached, which is connected via a coupling 9 to a pivotally mounted in the side frame walls of the printing unit and the rubber blanket cylinder via its pin-bearing eccentric bearing 10.
  • Fig. 1 the three possible pivot positions of the eccentric bearings 10 are marked with a, b and c.
  • the eccentric bearings 10 are in the position marked with a, which corresponds to the pressure-on state, in which the blanket cylinder is engaged both on the counter-pressure and on the plate cylinder.
  • the base point of the actuating means 1 designed as a pneumatic cylinder is articulated approximately in the center of a ternary link 16, the latter being fixed to the frame with a second articulation point and is articulated with the third articulation point to a nut 15 screwed on a threaded spindle 14.
  • the threaded spindle 14 is also passed through a swivel joint 12, which is arranged fixed to the frame.
  • a motor 13 is mounted, by means of which the threaded spindle 14 can be driven in both directions of rotation.
  • FIG. 2 shows the arrangement of the adjusting means 1, 2 and the further gear parts according to FIG. 1 articulated on their piston rods 3, 4 once again in a basic illustration.
  • the retracted piston rods 3, 4 of the actuating means 1, 2 cause the ternary member 5, the lever 6, the release shaft 7, the lever 8 attached to both sides of the release shaft 7, the coupling 9 and the eccentric bearing 10 that the blanket cylinder GT both is employed on the impression cylinder GD as well as the plate cylinder PZ.
  • Figures 2 to 6 the positions of the blanket cylinder GT against the impression cylinder GD and the plate cylinder PZ are shown in principle. In the descriptions of FIGS.
  • the actuating means 1 is first activated by pressurizing the working cylinder with compressed air during the channel correspondence between the blanket cylinder GT and the impression cylinder GD, so that the piston rod 3 of actuating means 1 extends.
  • Fig. 3 the extended state of the piston rod 3 of actuating means 1 is also shown in principle.
  • the lever 6 has been pivoted from the position shown in FIG. 2 into the position shown in FIG. 3 via the coupling-like ternary member 5, so that the release shaft 7 and the levers 8 on both sides have also been pivoted by a certain angular amount.
  • the eccentric bearing according to FIG. 1 was pivoted from position a to position b, so that the blanket cylinder GT, as shown in FIG. 3 above, no longer has any contact with the impression cylinder GD.
  • the actuating means 2 is activated by pressurizing the corresponding working cylinder with compressed air, so that the piston rod 4 of the actuating means 2 moves from the retracted to the extended position (Fig. 4).
  • About the coupling-like ternary member 5 is now a pivoting of the ternary member 5 about the pivot point of the piston rod 3, so that the lever 6 connected to the release shaft 7, starting from the position shown in FIG. 3, by a further angular amount in the position after Fig. 4 is pivoted.
  • the eccentric bearing 10 shown in FIG. 1 is pivoted from the position b into the position c via the levers 8 and the coupling 9 which are attached to the release shaft 7 on both sides.
  • the rubber blanket cylinder GT is now switched off both from the impression cylinder GD and from the plate cylinder PZ.
  • the blanket cylinder GT When printing on the printing substrate, which is thicker than 0.5 mm, for example, the blanket cylinder GT is not switched off from the impression cylinder GD because of the correspondingly provided printing supply 11. Since the actuating means 1 is connected in series to the printing supply 11, it results from the arrangement described above that the blanket cylinder GT no longer has any contact with the surface of the impression cylinder GD from a certain printing material thickness. If the blanket cylinder GT is set down from the impression cylinder GD, it is possible to do so if there is no sheet. At this point it should be noted that in the case of larger printing material thicknesses, because of the series connection of actuating means 1 and pressure supply 11, the eccentric bearing 10 according to FIG. 1 has been pivoted approximately into a position according to b. The position a of the eccentric bearing 10 corresponds to the printing provided with a substrate thickness of 0.0 mm.
  • the blanket cylinder GT is turned on after a predetermined number of revolutions of the blanket cylinder GT by switching the actuating means 2 to the plate cylinder PZ for large printing material thicknesses, starting from the position according to FIG.
  • the eccentric bearing 10 according to FIG. 1 is pivoted from the end position c into a position dependent on the set printing material thickness, which corresponds approximately to the position marked with b.
  • the one-step printing of the blanket cylinder GT with respect to the plate cylinder PZ in the case of thicker printing materials achieves that compared to the two-stage pressure circuit, a smaller swivel path of the eccentric bearing 10 (FIG. 1) must be carried out. Due to this small pivoting path, which corresponds approximately to the angle b - c according to FIG. 1 and the previously made statements, a substantially smaller torque shock is introduced into the drive train of the printing units. Since the print-down position, triggered by incorrectly positioned sheets, takes place at high printing speeds, it is avoided that the sheets still in the machine and still to be printed become waste due to torque surges. Since a certain number of waste sheets is very cost-intensive, especially with thick substrates, this is a particular advantage of the printing circuit according to the invention.
  • the first four printing units of a sheet-fed offset printing press are shown with the plate cylinders PZ, the blanket cylinders GT and the impression cylinders GD arranged underneath.
  • the individual blanket cylinders GT are assigned pressure circuits DS which contain the components shown in FIG. 1.
  • These are in particular the pressure supplies 11 and the two actuating means 1 and 2 which can be pressurized with compressed air.
  • the pressure circuits can be controlled remotely from a control unit S, the motors 13 of the pressure supply 11 being correspondingly movable via a printing material thickness entered at the control station LS of the printing press.
  • the actuating means 1 and 2 which are designed as double-acting pneumatic cylinders, can be switched from the control S via electromagnetically actuated valves (not shown in FIGS. 1-6).
  • the control S is also operatively connected to sheet control means (not shown) on the system of the printing press, in order to consequently switch off the print in the individual printing units after the detection of an incorrect sheet or a missing sheet. Likewise, the control S initiates the correct printing on after a first sheet has entered.
  • the blanket cylinders GT are only used for printing blanket thicknesses which are above a predetermined value be turned off by the plate cylinder PZ.
  • the blanket cylinder GT is first switched off by the impression cylinder GD and then by the plate cylinder PZ and in the corresponding reverse order hired again to these cylinders.
  • the predetermined threshold value above which the device switches between the one-stage and two-stage pressure on and pressure down positions can be, for example, 0.5 mm.
  • print-off is only made when the last sheet has passed the last printing unit. Then the inking unit is separated and the inking rollers are switched off to prevent over-coloring of the plate cylinder.
  • print-on occurs at all plants simultaneously before the first sheet runs into the first printing unit.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rotary Presses (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Steering Control In Accordance With Driving Conditions (AREA)
EP96105039A 1995-04-08 1996-03-29 Dispositif pour enclencher ou déclencher l'impression et procédé de contrÔle de ce dispositif Expired - Lifetime EP0736384B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19513378A DE19513378A1 (de) 1995-04-08 1995-04-08 Vorrichtung zur Druckan- und -abstellung
DE19513378 1995-04-08

Publications (2)

Publication Number Publication Date
EP0736384A1 true EP0736384A1 (fr) 1996-10-09
EP0736384B1 EP0736384B1 (fr) 1999-05-06

Family

ID=7759257

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96105039A Expired - Lifetime EP0736384B1 (fr) 1995-04-08 1996-03-29 Dispositif pour enclencher ou déclencher l'impression et procédé de contrÔle de ce dispositif

Country Status (5)

Country Link
US (1) US5649482A (fr)
EP (1) EP0736384B1 (fr)
JP (1) JP2911815B2 (fr)
AT (1) ATE179654T1 (fr)
DE (2) DE19513378A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1199164A2 (fr) * 2000-10-21 2002-04-24 Koenig & Bauer Aktiengesellschaft Procédé et dispositif pour la mise en pression
DE102018206126A1 (de) * 2018-04-20 2019-10-24 Koenig & Bauer Ag Bogendruckmaschine

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6684774B2 (en) 1997-05-09 2004-02-03 Heidelberger Druckmaschinen Ag Sheet-fed rotary printing press
DE19826891A1 (de) * 1998-06-17 1999-12-23 Heidelberger Druckmasch Ag Bogenrotationsdruckmaschine
DE19720952C2 (de) * 1997-05-17 2001-02-01 Roland Man Druckmasch Schwenkbarer, durch einen elektrischen Einzelantrieb angetriebener Zylinder
DE29905660U1 (de) * 1999-03-26 2000-08-10 Heidelberger Druckmaschinen Ag, 69115 Heidelberg Druckmaschine mit einer Reinigungseinrichtung zur Reinigung zweier Druckmaschinenzylinder
EP1377453B2 (fr) * 2001-04-09 2009-09-16 Koenig & Bauer Aktiengesellschaft Groupe d'impression d'une machine d'imprimerie
JP4904018B2 (ja) 2004-05-04 2012-03-28 ハイデルベルガー ドルツクマシーネン アクチエンゲゼルシヤフト 刷版搬送のための方法及び装置
DE102005005570B4 (de) 2004-05-04 2022-06-02 Heidelberger Druckmaschinen Ag Verfahren und Vorrichtung zum Druckplattentransport
US7406916B2 (en) * 2005-11-02 2008-08-05 Goss International Americas, Inc. Conservation of energy transfer during an emergency stop
DE102007011045B4 (de) * 2006-03-24 2011-12-22 Heidelberger Druckmaschinen Ag Druckmaschine
US20110132216A1 (en) * 2009-12-09 2011-06-09 7242514 Canada Inc. Stack angle compensation arrangement for a skewing adjustment system in an offset printing press
US20120174807A1 (en) * 2010-12-16 2012-07-12 Goss International Americas, Inc. Adjustable Inking or Dampening Apparatus for a Variable Cutoff Press and Method
DE102015203583B4 (de) 2014-02-27 2023-08-24 Koenig & Bauer Ag Vorrichtung zur Druckanstellung und Druckabstellung in einem Druckwerk einer Druckmaschine
US10474054B2 (en) * 2014-06-30 2019-11-12 Hp Indigo B.V. Adjustments to print blanket bias voltages
US10078294B2 (en) * 2014-06-30 2018-09-18 Hp Indigo B.V. Contact control of print blanket to impression drum
DE102015204557B4 (de) 2015-03-13 2021-05-27 Koenig & Bauer Ag Verfahren zur Druck-An- und Druckabstellung in einem Druckwerk

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4013075C1 (fr) * 1990-04-25 1991-06-20 Man Roland Druckmaschinen Ag, 6050 Offenbach, De
EP0453845A1 (fr) * 1990-04-25 1991-10-30 MAN Roland Druckmaschinen AG Machine à imprimer des feuilles en offset avec au moins un bloc d'impression

Family Cites Families (12)

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Publication number Priority date Publication date Assignee Title
US3800698A (en) * 1973-06-28 1974-04-02 Harris Intertype Corp Disconnect arrangement for multi-unit printing press
US4000692A (en) * 1974-12-03 1977-01-04 Roland Offsetmaschinenfabrik Faber & Schleicher Ag Throw-off system for rotary offset printing press
US4362098A (en) * 1980-08-04 1982-12-07 Faustel, Inc. Rotary printing press using flexible plates
GB2084514B (en) * 1980-10-01 1984-08-22 Fuji Kikai Kogyo Kk Tripping and adjustment in rotary printing press
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
US5094162A (en) * 1990-08-30 1992-03-10 A. B. Dick Company Offset printing machine
DE4142755C2 (de) * 1991-12-23 2002-04-25 Koenig & Bauer Ag Vorrichtung zur Einstellung der Druckpressung von Zylindern in Druckmaschinen
DE4206626A1 (de) * 1992-03-03 1993-09-09 Heidelberger Druckmasch Ag Verfahren zur verringerung von dublieren beim anlaufen einer bogendruckmaschine
DE4206627A1 (de) * 1992-03-03 1993-09-09 Heidelberger Druckmasch Ag Verfahren zur verringerung von dublieren beim ablaufen einer bogendruckmaschine
US5265529A (en) * 1992-06-09 1993-11-30 A. B. Dick Company Single piston impression cylinder throw-off
US5186103A (en) * 1992-06-12 1993-02-16 Man Roland Druckmaschinen Ag Printing machine system, especially for printing on a web of heavy or thick stock material, with interchangeable printing cylinders
US5235910A (en) * 1992-07-07 1993-08-17 A. B. Dick Company Blanket cylinder impression throw-off

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4013075C1 (fr) * 1990-04-25 1991-06-20 Man Roland Druckmaschinen Ag, 6050 Offenbach, De
EP0453845A1 (fr) * 1990-04-25 1991-10-30 MAN Roland Druckmaschinen AG Machine à imprimer des feuilles en offset avec au moins un bloc d'impression

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1199164A2 (fr) * 2000-10-21 2002-04-24 Koenig & Bauer Aktiengesellschaft Procédé et dispositif pour la mise en pression
EP1199164A3 (fr) * 2000-10-21 2003-07-23 Koenig & Bauer Aktiengesellschaft Procédé et dispositif pour la mise en pression
DE102018206126A1 (de) * 2018-04-20 2019-10-24 Koenig & Bauer Ag Bogendruckmaschine

Also Published As

Publication number Publication date
US5649482A (en) 1997-07-22
JPH08281903A (ja) 1996-10-29
DE59601802D1 (de) 1999-06-10
EP0736384B1 (fr) 1999-05-06
JP2911815B2 (ja) 1999-06-23
ATE179654T1 (de) 1999-05-15
DE19513378A1 (de) 1996-10-10

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