EP0416390B1 - Überführtrommel - Google Patents

Überführtrommel Download PDF

Info

Publication number
EP0416390B1
EP0416390B1 EP90116219A EP90116219A EP0416390B1 EP 0416390 B1 EP0416390 B1 EP 0416390B1 EP 90116219 A EP90116219 A EP 90116219A EP 90116219 A EP90116219 A EP 90116219A EP 0416390 B1 EP0416390 B1 EP 0416390B1
Authority
EP
European Patent Office
Prior art keywords
transfer drum
support elements
bracket
shaft
cylinder
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
EP90116219A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0416390A3 (en
EP0416390A2 (de
Inventor
Wolfgang Carlo Johannes Spiess
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 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 AG filed Critical Koenig and Bauer AG
Publication of EP0416390A2 publication Critical patent/EP0416390A2/de
Publication of EP0416390A3 publication Critical patent/EP0416390A3/de
Application granted granted Critical
Publication of EP0416390B1 publication Critical patent/EP0416390B1/de
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
    • B41F22/00—Means preventing smudging of machine parts or printed articles

Definitions

  • the invention relates to a transfer drum of a multicolor rotary printing press.
  • the US-PS 29 65 026 shows a generic transfer drum in a rotary printing press, in which sheet support segments are arranged on the shaft of this drum. They are axially displaceable and can be locked on the shaft in their working position.
  • a screw is used for locking, which can be rotated in a threaded bore of a yoke and allows a releasably non-positive connection to be made between the arch support segment and the shaft.
  • the screw To move these arch support segments, the screw must be actuated using a tool.
  • the invention has for its object to provide a transfer drum for a rotary printing press in a lightweight design.
  • the advantages of the invention are simple and therefore inexpensive design of the object according to the invention.
  • the diameter or circumference of the displaceably arranged sheet-carrying device is very large in relation to the shaft body which carries the sheet-carrying device. This arrangement saves large masses compared to a full cylinder.
  • the subject of the invention is provided with quick-release fasteners which can be operated without tools.
  • the description is based on a transfer drum 1 for sheets, as is known, for example, from a sheet delivery drum of a chain delivery.
  • the transfer drum 1 is rotatably mounted in a known manner in side frames 3, 4 of the chain arm.
  • the transfer drum 1 consists essentially of a shaft 6 and a number (for example 3) arranged axially displaceably on the shaft 6 Arch support segments 7.
  • the shaft 6 carries a sprocket 11, 12 at an outer end of the shaft 6 in the vicinity of the inner sides of the side frames 3, 4.
  • the sprocket 11, 12 is the drive for an endless chain 13, which carries gripper devices 16 at intervals.
  • the transfer drum 1 itself is driven by means of a gearwheel mounted on the shaft 6 outside the side frames (not shown).
  • Each arch support segment 7 consists of a two-part housing 17 which surrounds the shaft 6. An upper part 18 and a lower part 19 of the housing 17 are detachably connected to one another.
  • the lower part 19 has three side walls 21, 22, 23.
  • the side walls 21, 23 are each inclined at an angle ⁇ (for example 120 ° ) to the side wall 22. In the working position of the arch support segments 7, the side walls 21, 23 rest against the shaft 6 in axially running line contact.
  • the side wall 22 has an annular bracket 24 fastened on its outside. The bracket 24 is oriented in the sheet transport direction and adapted to a circumference specified by the chain wheels 11, 12.
  • the bracket 24 (dash-dotted line) is optionally interchangeable with a bracket 26 with smaller dimensions.
  • the brackets 26 are used in particular in the processing of thin products, whereas the brackets 24 are used in particular in the case of thick products (for example cardboard).
  • the upper part 18 also has three side walls 27, 28, 29, of which the side walls 27, 29 are arranged at least partially parallel to one another.
  • the side walls 27, 29 each have a bearing point 31, 32 for an upper bracket 33, 34 arranged diametrically opposite the lower bracket 24; 26.
  • the bracket 33; 34 is pivotally mounted in the bearings 31,32.
  • a quick-release fastener in the form of a cam 36 is fastened on the bracket 33, 34 within the upper part 18 between the side walls 27, 29.
  • the cam 36 consists of a cylinder 37 with an eccentrically arranged bore 35, in which the bracket 33; 34 is non-rotatable.
  • the cylinder 37 is also seated in a non-rotatable manner in an inner ring 38 of a double-walled sleeve 39.
  • a resilient elastic material 40 e.g. rubber
  • a stop 42 is provided next to the cam 36, which is seated on the bracket 33; 34 in a rotationally fixed manner.
  • the stop 42 has a stop surface 43 which, when the bracket 33; 34 is in the working position, rests against an underside of the side wall 28 and thus prevents the bracket 33; 34 from being pivoted beyond the working position.
  • a center 44 of the bore 35 lies in the working position on a vertically arranged straight line 46.
  • the straight lines 46 and 48 intersect in the center 44 at an acute angle ⁇ (for example 12 o ).
  • a position indicator 50 in the form of e.g. B. a dipstick is provided.
  • the operating personnel can read off the set dimension of the sheet support segments 7 directly on the transfer drum 1, so that a portable measuring device can be dispensed with.
  • the upper bracket 33; 34 is pivoted counterclockwise, as shown in FIG. 3.
  • the bracket 33; 34 pivots about the center 44 into a e.g. starting position represented by a dash-dotted line.
  • the centers 44, 47 lie together on the straight line 46.
  • the cam 36 is in a “dead center position”.
  • the elastic material 40 provided between the inner and outer rings 38, 41 is compressed slightly, whereby the outer ring 41 is pressed resiliently onto the surface of the flat 49.
  • a further rotation beyond the angle ⁇ causes, in theory, a loosening of the contact between the outer ring 41 and the flat 49.
  • the outer ring 41 is pivoted away from the flat 49 until a sufficiently large distance b (for example 2 mm) is reached. This position can also be specified by a further stop.
  • the contact between the outer ring 41 and the flattened portion 49 remains, while the housing 17 is displaced downwards until there is a sufficiently large play between the shaft 6 and the side walls 21,23 is achieved.
  • the brackets 24; 26 and 33; 34 are provided with a number (e.g. 5) of support elements 51 (e.g. ink-repellent plastic rollers) which are arranged on the brackets 24; 26,33; 34 so as to be displaceable in the circumferential direction of the transfer drum 1.
  • support elements 51 e.g. ink-repellent plastic rollers
  • a transported sheet does not lie directly on the sheet support segments 7 but on the support elements 51. In this way, a sheet is supported only by small punctiform areas that can be adjusted to unprinted areas of a printed sheet.
  • the bracket 33; 34 is the release or locking element for fixing the housing 17 on the shaft 6. It is of course also possible to remove the part of the bracket 33; 34 mounted in the side walls 27, 29 from the entire bracket 33; 34 separate and provided with a handle and at the same time to fasten the bracket 33; 34 to the outside of the side wall 28. This measure divides the support and locking tasks into two elements.
  • the support elements 51 are arranged, for example, close to one another and provided with a support edge 52 which, if necessary, can be folded down sideways.
  • the support elements 51, 53, 54, 56 can have polygonal cross sections and can be mounted on the brackets 24; 26, 33; 34 so that they are stiff but pivotable by hand. With this measure, the support elements can be pivoted in such a way that their support edges 52 are pivoted out of the contact area with a transported sheet.
  • the proposed support elements 53, 56 each have a spring 59 loaded ball 57, which is arranged such that it can be snapped into axially extending grooves 58 in the brackets 24; 26, 33; 34.

Landscapes

  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Electrostatic Charge, Transfer And Separation In Electrography (AREA)
  • Discharge By Other Means (AREA)
EP90116219A 1989-09-02 1990-08-24 Überführtrommel Expired - Lifetime EP0416390B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3929228A DE3929228A1 (de) 1989-09-02 1989-09-02 Ueberfuehrtrommel
DE3929228 1989-09-02

Publications (3)

Publication Number Publication Date
EP0416390A2 EP0416390A2 (de) 1991-03-13
EP0416390A3 EP0416390A3 (en) 1991-06-05
EP0416390B1 true EP0416390B1 (de) 1994-07-27

Family

ID=6388531

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90116219A Expired - Lifetime EP0416390B1 (de) 1989-09-02 1990-08-24 Überführtrommel

Country Status (6)

Country Link
US (1) US5050500A (enrdf_load_stackoverflow)
EP (1) EP0416390B1 (enrdf_load_stackoverflow)
JP (1) JP2642233B2 (enrdf_load_stackoverflow)
DD (1) DD297369A5 (enrdf_load_stackoverflow)
DE (2) DE3929228A1 (enrdf_load_stackoverflow)
RU (1) RU1833315C (enrdf_load_stackoverflow)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4431114C2 (de) * 1994-09-01 1999-11-18 Roland Man Druckmasch Bogenführender Trommelkörper für eine Druckmaschine
DE19644011A1 (de) * 1996-10-31 1998-05-07 Heidelberger Druckmasch Ag Überführtrommel in einer Bogen verarbeitenden Druckmaschine
DE19955099B4 (de) * 1999-11-16 2010-02-11 Maschinenfabrik Wifag Rotationskörpergebilde für eine Bahnbreitenkorrektur

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2730950A (en) * 1954-07-26 1956-01-17 Leon J Grassi Air pressure system for the skeleton wheels of an off-set printing press
US2965026A (en) * 1957-08-09 1960-12-20 Robert L Woodward Skeleton wheels
CH392564A (de) * 1961-09-26 1965-05-31 Color Metal Ag Umführtrommel für Rotationsdruckmaschinen
DE1179559B (de) * 1963-06-05 1964-10-15 Roland Offsetmaschf Auslegertrommel
DE1213429B (de) * 1965-07-30 1966-03-31 Planeta Veb Druckmasch Werke Bogenfuehrungstrommel fuer Rotationsdruckmaschinen
US3334892A (en) * 1965-08-04 1967-08-08 Adamovske Strojirny Np Drum for delivering paper sheets from machines
US3442506A (en) * 1967-06-30 1969-05-06 Miehle Goss Dexter Inc Antismudge sheet transfer device
US3643598A (en) * 1969-01-23 1972-02-22 Nebiolo Spa Sheet transfer roller for use in multicolor rotary printing presses
US3602140A (en) * 1970-02-09 1971-08-31 Ralph E Sudduth Rotary antismut device having radially adjustable sheet-supporting wheels
US3642274A (en) * 1970-08-07 1972-02-15 Francis Walter Herrington Sheet-supporting assembly for an inverter roll
US3690648A (en) * 1971-04-21 1972-09-12 Francis Walter Herrington Wheel assembly
US3780925A (en) * 1972-10-10 1973-12-25 N Ternes Retractable wheel for paper guiding cylinder
DE2813136C3 (de) * 1978-03-25 1986-04-17 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Bogentrageinrichtung, die axial und in Umfangsrichtung verstellbar auf einer Überführtrommel angeordnet ist
DE3535621A1 (de) * 1985-10-05 1987-04-09 Heidelberger Druckmasch Ag Bogenuebergabetrommel
DE3614565A1 (de) * 1986-04-29 1987-11-05 Roland Man Druckmasch Wendetrommel in bogenrotationsdruckmaschinen
JPH0628271Y2 (ja) * 1987-11-13 1994-08-03 リョービ株式会社 枚葉印刷機の斜像調整装置

Also Published As

Publication number Publication date
RU1833315C (en) 1993-08-07
DD297369A5 (de) 1992-01-09
DE3929228A1 (de) 1991-03-21
EP0416390A3 (en) 1991-06-05
EP0416390A2 (de) 1991-03-13
US5050500A (en) 1991-09-24
JPH0393545A (ja) 1991-04-18
DE59006571D1 (de) 1994-09-01
DE3929228C2 (enrdf_load_stackoverflow) 1992-11-26
JP2642233B2 (ja) 1997-08-20

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