EP0280141B1 - Einrichtung zur Abdeckung der Zylindergrube eines Zylinders einer Rotationsdruckmaschine - Google Patents

Einrichtung zur Abdeckung der Zylindergrube eines Zylinders einer Rotationsdruckmaschine Download PDF

Info

Publication number
EP0280141B1
EP0280141B1 EP88102167A EP88102167A EP0280141B1 EP 0280141 B1 EP0280141 B1 EP 0280141B1 EP 88102167 A EP88102167 A EP 88102167A EP 88102167 A EP88102167 A EP 88102167A EP 0280141 B1 EP0280141 B1 EP 0280141B1
Authority
EP
European Patent Office
Prior art keywords
cylinder
adjustment
cam
stepping motor
insert
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.)
Expired - Lifetime
Application number
EP88102167A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0280141A2 (de
EP0280141A3 (en
Inventor
Hermann Fischer
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 EP0280141A2 publication Critical patent/EP0280141A2/de
Publication of EP0280141A3 publication Critical patent/EP0280141A3/de
Application granted granted Critical
Publication of EP0280141B1 publication Critical patent/EP0280141B1/de
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
    • B41F27/00—Devices for attaching printing elements or formes to supports
    • B41F27/12—Devices for attaching printing elements or formes to supports for attaching flexible printing formes
    • B41F27/1293—Devices for filling up the cylinder gap; Devices for removing the filler

Definitions

  • the invention relates to a device for covering the cylinder pit of a cylinder of a rotary printing press with an insert piece which can be moved in the radial direction by means of an adjusting spindle extending parallel to the cylinder axis and is designed on its outside as a section of the cylinder jacket surface.
  • a device that enables an adjustment of the height of the insert is known from DE-PS 236 935.
  • two setscrews are provided, which are supported on the cylinder with one end, while the other end is screwed into the insert. These adjusting screws can also only be set when the cylinder is stationary.
  • US Pat. No. 2,105,452 shows, as part of a plate tension, a pivotable cylinder segment which, however, is not used to cover a cylinder pit. In the released state, a plate is clamped onto the cylinder, which is tightened and clamped when the segment is moved out.
  • DE-C-701 996 shows a device in which a plate clamping device with an insert piece clamping a flexible plate simultaneously covers a cylinder base.
  • a gap closure rail is moved by means of two wedge gears which are actuated by an adjusting spindle.
  • the invention has for its object to provide a device of the type mentioned in such a way that the insert is adjustable to a precise height in the cylinder pit even while the cylinder is running.
  • the cylinder designated overall by 1 which is a blanket cylinder of an offset rotary printing press, has a cylinder pit 2, in which two clamping spindles 3 for fixing and tensioning the two ends of a blanket 4 are arranged.
  • the cylinder pit 2 is closed on both sides by an end wall 5, only one of which is shown. Protrudes into the cylinder pit 2 furthermore an adjusting spindle 6 extending parallel to the axis of the cylinder 1 and having an adjusting cam 7 in the middle of the cylinder.
  • the adjusting spindle 6 is mounted at one end in the end wall 5 and at the other end in a bearing 8 which is firmly connected to the cylinder.
  • a control lever 9, which carries a roller 10, sits firmly on the adjusting spindle 6 in front of the end wall 5.
  • the roller 10 is held in contact with a cam 12 by means of a compression spring 11.
  • the control cam 12 is freely rotatable on a shaft 13 of the cylinder 1 and is fixedly connected to a worm wheel 14.
  • the shaft 16 is mounted in a manner not shown on a side wall 17 of the printing press and has a hand wheel, also not shown, for rotation.
  • On the shaft 13 of the cylinder 1, a drive gear 18 is still firmly attached.
  • the adjusting cam 7 engages with a tight fit in a bore 19 of an insert 20 so that it can rotate in the bore 19 without play.
  • the outer surface of the adjusting cam 7 is circular and eccentric with respect to the adjusting spindle 6. The use of such a construction has the advantage, when placed correctly, that the same angles of rotation of the actuating cam 7 result in approximately the same radial adjustment paths of the insert 20.
  • the insert 20 consists of an inner part 21 which has the bore 19 and an outer part 22, the outer side 23 of which is formed as a section of the lateral surface of the cylinder 1.
  • the outer part 22 has a flange 25 in front of both end faces 24.
  • a screw 26 engages through each flange 25 and can be screwed into a thread in the inner part 21. After loosening the screws 26, the outer part 22 can be removed to the outside through the cylinder pit 2. The blanket can now be removed or replaced.
  • the outer part 22 carries an extension 27 which can engage in a corresponding groove 28 in the upper side of the inner part 21.
  • the latter has an extension 29 which engages in a groove 30 in the cylinder 1.
  • the insert 20 extends only over a short section of the length of the cylinder pit 2.
  • the width of the insert 20 corresponds to the width of the actuating cam 7.
  • two or more insert pieces can also be provided in a cylinder pit 2.
  • a bearing is then expediently arranged directly next to each actuating cam in order to prevent the actuating spindle from bending under the forces acting on the insert and thus to prevent the outside of the insert from changing position.
  • the control curve 12 is now set so that the outer side 23 of the insert 20 closes the outer circumference of the cylinder determined by the rubber blanket when passing through the cylinder pit 2 under an adjacent cylinder to a full circle.
  • control cam 12 is rotated by means of the worm drive 14, 15, 16 until the color stripes disappear.
  • the height of the outer side 23 of the insert 20 is changed by the rotation of the control curve when the cylinder pit 2 passes under another cylinder.
  • the control lever 9 seated firmly on the clamping spindle 6 carries a roller 31 of greater width.
  • the roller 31 can alternately cooperate with a first control curve 32 and a second control curve 33.
  • the control cam 32 is in turn rotatably mounted on the shaft 13 of the cylinder 1 and is fixedly connected to a worm wheel 35 via a sleeve-shaped extension 34.
  • the second cam 33 is freely rotatable, which in turn is firmly connected to a further worm wheel 36.
  • a worm which is no longer shown, engages in each of the two worm wheels, each of which is firmly seated on a manually adjustable adjusting shaft.
  • the arrangement for controlling the insert is designed in the same way as in the first exemplary embodiment.
  • the insert can be brought twice to the altitude during one revolution of the cylinder 1, which it is to assume when passing under two adjacent cylinders.
  • Such an arrangement is suitable, for example, for offset perfecting and reverse printing units, in which the web is printed between two blanket cylinders, each of which is assigned a plate cylinder.
  • an electrical setting device can also be used.
  • This setting device comprises a tachometer generator 37 which is placed on the shaft 13 of the cylinder 1.
  • the voltage supplied by the tachometer generator 37 is applied to an analog-digital converter 39 via a potentiometer 38 provided for calibration purposes.
  • the voltage is converted into digital pulses, which are connected in a downstream Microprocessor 40 arrive for processing.
  • the microprocessor 40 controls, via an actuator 41, a certain number of steps of a stepper motor 42, which can rotate the control curve directly or via a worm gear.
  • steps are counted via a counter 43 by a contactlessly operating scanning head 44 per unit of time and reported to the microprocessor 40.
  • the stepping motor 42 is stopped.
  • the generated tachometer generator voltage is thus converted in a simple manner into a specific number of steps of the step motor 42.
  • a high output voltage at the tachometer generator 37 means a correspondingly large number of steps, a lower voltage means a smaller number of steps.
  • the potentiometer 38 connected between the tachometer generator 37 and the analog-digital converter 39, the voltage that comes to the analog-digital converter 39 can be influenced. In this way, it is possible, as shown in FIG. 6, to assign different numbers of steps to a specific speed of the machine and therefore to a specific voltage supplied by the tachometer generator, in order to obtain different characteristic curves with which, for example, the hardness of the cylinder lift can be taken into account.

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
EP88102167A 1987-02-21 1988-02-15 Einrichtung zur Abdeckung der Zylindergrube eines Zylinders einer Rotationsdruckmaschine Expired - Lifetime EP0280141B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873705593 DE3705593A1 (de) 1987-02-21 1987-02-21 Einrichtung zur abdeckung der zylindergrube eines zylinders einer rotationsdruckmaschine
DE3705593 1987-02-21

Publications (3)

Publication Number Publication Date
EP0280141A2 EP0280141A2 (de) 1988-08-31
EP0280141A3 EP0280141A3 (en) 1989-11-15
EP0280141B1 true EP0280141B1 (de) 1992-10-21

Family

ID=6321481

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88102167A Expired - Lifetime EP0280141B1 (de) 1987-02-21 1988-02-15 Einrichtung zur Abdeckung der Zylindergrube eines Zylinders einer Rotationsdruckmaschine

Country Status (3)

Country Link
EP (1) EP0280141B1 (enrdf_load_stackoverflow)
JP (1) JPS63242543A (enrdf_load_stackoverflow)
DE (2) DE3705593A1 (enrdf_load_stackoverflow)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1235334B (de) * 1962-04-26 1967-03-02 Albert Schnellpressen Druck- bzw. Gummizylinder von Rotationsdruckmaschinen

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE236935C (enrdf_load_stackoverflow) *
US1900664A (en) * 1930-10-31 1933-03-07 Harris Seybold Potter Co Printing press
DE640262C (de) * 1934-12-14 1936-12-29 E H Wilhelm Stein Dr Ing Vorrichtung zum Aufspannen von biegsamen Druckformen auf dem Formzylinder von Rotationsdruckmaschinen
US2105452A (en) * 1935-12-18 1938-01-11 New Era Mfg Company Plate clamp
DE701996C (de) * 1937-11-27 1941-01-28 Koenig & Bauer Schnellpressfab Mit einer biegsamen Druckplatte versehener Formzylinder fuer Bogen-Rotationstiefdruckmaschinen
DE2948488A1 (de) * 1979-12-01 1981-06-04 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Plattenzylinder fuer offset-rotationsdruckmaschinen
DE3326215C2 (de) * 1983-07-21 1986-04-03 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Vorrichtung zum Aufspannen einer Druckplatte oder eines Gummituches
US4745824A (en) * 1985-01-25 1988-05-24 Nissan Motor Co., Ltd. Manual transmission with mechanism for preventing reverse gear shift noise

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1235334B (de) * 1962-04-26 1967-03-02 Albert Schnellpressen Druck- bzw. Gummizylinder von Rotationsdruckmaschinen

Also Published As

Publication number Publication date
EP0280141A2 (de) 1988-08-31
DE3705593A1 (de) 1988-09-01
DE3875356D1 (de) 1992-11-26
DE3705593C2 (enrdf_load_stackoverflow) 1989-11-16
EP0280141A3 (en) 1989-11-15
JPS63242543A (ja) 1988-10-07

Similar Documents

Publication Publication Date Title
DE3644431C2 (enrdf_load_stackoverflow)
DE3508697C2 (enrdf_load_stackoverflow)
EP0340452A2 (de) Vorrichtung zur Verstellung der Drehlage eines Zylinders einer Wendeeinrichtung und zur axialen Verschiebung eines Stellgliedes für die Greiferumstellung an diesem Zylinder einer Bogenrotationsdruckmaschine
DE3539371C2 (enrdf_load_stackoverflow)
EP0405249B1 (de) Vorrichtung zur Einstellung des Umfangsregisters
CH622463A5 (enrdf_load_stackoverflow)
DE2720313C2 (de) Einstellvorrichtung für Umfangs- und Seitenpasser
EP0280141B1 (de) Einrichtung zur Abdeckung der Zylindergrube eines Zylinders einer Rotationsdruckmaschine
DE4222332C2 (de) Vorrichtung zur Befestigung und zur Lageänderung eines Zylinderaufzuges
DE3936459C1 (enrdf_load_stackoverflow)
CH660861A5 (de) Verfahren zum einrichten einer druckmaschine und einstellgeraet zur ausuebung des verfahrens.
EP0280159B1 (de) Einrichtung zur Abdeckung der Zylindergrube eines Zylinders einer Rotationsdruckmaschine
DE3222447C2 (de) Zylinderschaftvorrichtung einer Bogen-Rotations-Druckmaschine
DE4214167C2 (enrdf_load_stackoverflow)
DE2700419C3 (de) Bogenübertragungszylinder für auf Schön- und Widerdruck einstellbare Bogen-Rotations-Druckmaschinen
DE4035617A1 (de) Vorrichtung zum verstellen der falzklappen eines falzklappenzylinders
DE2613174C3 (de) Vorrichtung zur Steuerung von Greifern in Bogenrotationsdruckmaschinen
DE3223685C2 (enrdf_load_stackoverflow)
DE468137C (de) Ausgleichvorrichtung fuer die Umlaufgeschwindigkeiten zweier zusammenarbeitender Zylinder mit veraenderlichem Durchmesser, insbesondere bei Rotationsdruckmaschinen
DE2157615A1 (de) Vorrichtung zum formateinstellen im falzapparat von rotationsdruckmaschinen
DE4140022C2 (de) Vorrichtung zum Spannen einer Druckplatte auf einen Plattenzylinder einer Druckmaschine
DD226518A1 (de) Einrichtung zur betaetigung eines endschalters
DE2617604C2 (de) Steuereinrichtung für Greifer einer schwingenden Vorgreifertrommel, insbesondere für Offsetdruckmaschinen
DE1929181B2 (de) Vorrichtung zur An- und Abstellung des Offsetzylinders einer Offsetdruckmaschine
DD226517A1 (de) Sicherheitseinrichtung fuer umstellbare schoen- und widerdruckmaschinen

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: A2

Designated state(s): CH DE FR GB IT LI SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): CH DE FR GB IT LI SE

17P Request for examination filed

Effective date: 19891028

17Q First examination report despatched

Effective date: 19910513

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

ITF It: translation for a ep patent filed
AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH DE FR GB IT LI SE

REF Corresponds to:

Ref document number: 3875356

Country of ref document: DE

Date of ref document: 19921126

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

Ref country code: GB

Payment date: 19930113

Year of fee payment: 6

Ref country code: DE

Payment date: 19930113

Year of fee payment: 6

Ref country code: CH

Payment date: 19930113

Year of fee payment: 6

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

Ref country code: FR

Payment date: 19930120

Year of fee payment: 6

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

Ref country code: SE

Payment date: 19930125

Year of fee payment: 6

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

Effective date: 19930118

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

Effective date: 19940215

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

Ref country code: SE

Effective date: 19940216

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

Ref country code: LI

Effective date: 19940228

Ref country code: CH

Effective date: 19940228

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

Effective date: 19940215

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

Ref country code: FR

Effective date: 19941031

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

Ref country code: DE

Effective date: 19941101

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

EUG Se: european patent has lapsed

Ref document number: 88102167.9

Effective date: 19940910

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: 20050215