EP0158836B1 - Dispositif de sortie de feuilles, en particulier pour petites machines d'impression offset - Google Patents

Dispositif de sortie de feuilles, en particulier pour petites machines d'impression offset Download PDF

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Publication number
EP0158836B1
EP0158836B1 EP85103000A EP85103000A EP0158836B1 EP 0158836 B1 EP0158836 B1 EP 0158836B1 EP 85103000 A EP85103000 A EP 85103000A EP 85103000 A EP85103000 A EP 85103000A EP 0158836 B1 EP0158836 B1 EP 0158836B1
Authority
EP
European Patent Office
Prior art keywords
sheet
delivery device
roller
conveyor
carrying element
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
Application number
EP85103000A
Other languages
German (de)
English (en)
Other versions
EP0158836A2 (fr
EP0158836A3 (en
Inventor
Gottfried Höfer
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.)
Heidelberger Druckmaschinen AG
Original Assignee
Heidelberger 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 Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Priority to AT85103000T priority Critical patent/ATE37324T1/de
Publication of EP0158836A2 publication Critical patent/EP0158836A2/fr
Publication of EP0158836A3 publication Critical patent/EP0158836A3/de
Application granted granted Critical
Publication of EP0158836B1 publication Critical patent/EP0158836B1/fr
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/54—Article strippers, e.g. for stripping from advancing elements
    • B65H29/56—Article strippers, e.g. for stripping from advancing elements for stripping from elements or machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F21/00—Devices for conveying sheets through printing apparatus or machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41L—APPARATUS OR DEVICES FOR MANIFOLDING, DUPLICATING OR PRINTING FOR OFFICE OR OTHER COMMERCIAL PURPOSES; ADDRESSING MACHINES OR LIKE SERIES-PRINTING MACHINES
    • B41L21/00—Devices for conveying sheets or webs of copy material through the apparatus or machines for manifolding, duplicating, or printing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41L—APPARATUS OR DEVICES FOR MANIFOLDING, DUPLICATING OR PRINTING FOR OFFICE OR OTHER COMMERCIAL PURPOSES; ADDRESSING MACHINES OR LIKE SERIES-PRINTING MACHINES
    • B41L21/00—Devices for conveying sheets or webs of copy material through the apparatus or machines for manifolding, duplicating, or printing
    • B41L21/02—Devices for conveying sheets or webs of copy material through the apparatus or machines for manifolding, duplicating, or printing for conveying sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/20—Delivering or advancing articles from machines; Advancing articles to or into piles by contact with rotating friction members, e.g. rollers, brushes, or cylinders
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S271/00—Sheet feeding or delivering
    • Y10S271/90—Stripper

Definitions

  • the invention relates to a sheet delivery device, in particular for small offset printing presses, with a stripping device which removes a printed sheet from a printing cylinder, a pair of supporting elements which are displaceably and lockably mounted on a cross member extending transversely to the sheet running direction, a pair of guide and Transport roller assemblies, each having a guide roller that holds the trailing end of the sheet on the impression cylinder, a freely rotatable first transport roller that rolls on the top of the detached sheet, and a second transport roller that rolls on the underside of the detached sheet, a drive shaft common to the second transport rollers, on which the second transport rollers are mounted so as to be longitudinally displaceable and with a guide device for the sheet leaving the transport rollers and carried by the carrying elements.
  • Such sheet delivery devices are used in small offset machines, but also in at least a similar design in devices or devices for copying, duplicating or printing for office or other commercial purposes.
  • the sheet delivery device or various of its components mentioned in the generic term must be adjustable with respect to one another, or must be adjustable overall. These necessities result, for example, from the different format widths and thicknesses of the sheets.
  • a sheet delivery device is known from US-PS-305 838.
  • the guide and transport roller arrangements which can be adjusted to the format width of a printed sheet by means of a pair of support elements (29 '), can be pivoted about a common axis by means of a pair of pivoting arms (26) and lack the possibility of individually adjusting the contact pressure of the guide roller and the like upper transport roller.
  • the sheet guiding devices assigned to the transport rollers are pivotably arranged together with the transport rollers. There is no evidence of an adjustment of these sheet guiding devices to the format width.
  • a sheet guide device is not provided here.
  • a sheet delivery device known from DE-OS-2 045 148 essentially differs from this in that the upper transport rollers (26, 27) are pressed exclusively under the force of gravity against a transport roller (6) which takes over the function of lower transport rollers.
  • the object of the present invention is to provide a sheet delivery device, in particular for small offset presses, which enables simple and problem-free handling with regard to setting the format width and the respective contact pressure of the rolls used and also ensures gentle handling of the sheets to be laid out.
  • This sheet delivery device is characterized above all by an extremely compact and clear construction. A major advantage is ultimately that all setting and adjustment work can be carried out even when the machine is in operation.
  • a sheet 5 to be printed is separated from the stack 1 and fed to a printing cylinder 3 via a feed device 2.
  • the transfer of the printed image takes place in the gap between the latter and a rubber cylinder 4.
  • the printed sheet 5 is then taken over by a sheet delivery device 6 and fed to a delivery stack 7.
  • the rubber cylinder 4 receives the print image from a plate cylinder 8 in front of it, which receives the printing ink via an application roller 9 which is in contact with an inking and dampening unit 10, 11.
  • the machine receives the corresponding commands from the machine operator via the control panel 12.
  • Blanket washing device 61, film drawing and etching device 62, 63 are further essential components of the machine.
  • a stripper 13 is provided which, after its release by the sheet gripper 14, releases the sheet 5 from the printing cylinder 3 and supplies downstream transport rollers 21, 22.
  • the stripper 13, which consists of a plurality of stripper fingers 15 distributed over the machine width in a corresponding arrangement, is fastened to the side walls 17, 18 of the machine with fastening rails 19 carrying these stripper fingers 15 (FIG. 3).
  • the rear area of the sheet 5 is held in contact with the printing cylinder 3 by means of a guide roller 20 which bears against the printing cylinder 3 until it has been taken over by the transport rollers 21, 22.
  • the latter are in the form of cylindrical rubber rollers 21 assigned to the left and right side of the sheet, as seen over the width of the sheet, and pressure rollers 22 attached to them with a certain contact pressure.
  • the contact pressure can be set via a device to be described in more detail later.
  • the transport rollers 21, 22, that is to say in particular the cylindrical rubber roller 21, is further followed by a respective guide plate 23 arranged on the left and right sides, which is shaped in such a way that the sheet 5 to be laid out is given a slight curvature so that its internal stability is increased by make his way to the delivery pile 7 more trouble-free.
  • Guide roller 20 and pressure roller 22 are mounted on a support element 24 designed as an elongated bearing block, which is displaceable in the axial direction on a flattened round axis 25 and can be fixed by means of a toggle screw 26.
  • the flattened rotary axis 25 is fastened to the side walls 17, 18 of the machine by fastening screws 27.
  • the support element 24 is supported with its fork-shaped projection 28 on a further axis 29, which is also supported by means of fastening screws 27 on the two side walls 17, 18.
  • Each guide roller 20 is also rotatably mounted on a lever 31, which in turn can be pivoted about a bearing pin 32 of the support element 24 and is spring-supported on the latter via compression spring 33, guide pin 34 and nut 35 with the associated lock nut 30, in order thereby to be able to be applied with a preselectable pressing force on To apply pressure cylinder 3.
  • the pressure roller 22 is also mounted on the support element 24 by means of an axle pin 36 and a lever 37, the other end of which is connected to the support element 24 by means of a bearing pin 38. Via a bolt 40 guided in a bore 39 of the supporting element 24, on which a compression spring 41 acts, the contact pressure is transmitted to the contact roller 22 via a further lever 60 connected to the bearing journal 38.
  • the contact pressure can be varied by means of an adjusting screw 42 acting on the compression spring 41 with a predetermined adjustment range.
  • the setting range includes, for example, less than one screw revolution.
  • a protective shield 44 is provided between the toggle screw 26 and the adjusting screw 42 and the area of the sheet delivery device 6 facing the pressure cylinder 3. This maintains the free accessibility of the aforementioned adjustment elements.
  • Rubber roller 21 and guide plate 23 are connected to the support element 24 via a bracket 45. They are thus laterally adjusted simultaneously with the pressure roller 22. Baffle 23 and rubber roller 21 can also be adjusted laterally relative to the pressure roller 22 by means of knurled nuts 46, which act on a tab 43 of the bracket 45. As can be seen from FIG. 4, the knurled nuts 46 are screwed onto a threaded pin 47 which engages in a threaded bore 48 of the support element 24.
  • the bracket 45 is detachably attached to the lower flattened side 49 of the support element 24 and correspondingly laterally displaceable and continues to encompass the rubber roller 21.
  • the latter with a slight sliding fit, is mounted on a drive shaft 50 equipped with a longitudinal groove 57 and can be axially displaced slightly due to the driving connection with the bracket 45.
  • the drive shaft 50 is supported by ball bearings 51 in axle brackets 52, which are each fastened to the two side walls 17, 18 by means of fastening screws 53.
  • a gear 54 which is mounted on the drive shaft 50 in a rotationally fixed manner, transmits the rotary movement via further gear wheels 55, 56 of the drive chain.
  • the assigned gear 55 is on a by means of fastening screws 58 pivot bearing 59 held on the side wall 18.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
  • Handling Of Continuous Sheets Of Paper (AREA)
  • Labeling Devices (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Vehicle Body Suspensions (AREA)
  • Aerials With Secondary Devices (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Discharge By Other Means (AREA)

Claims (5)

1. Dispositif receveur de feuilles, notamment pour de petites machines d'impression offset, comportant un dispositif racleur (13) détachant une feuille imprimée (5) d'un cylindre d'impression, une paire d'éléments porteurs (24) déplaçables par translation et pouvant être arrêtés sur une traverse s'étendant perpendiculairement à la direction de déplacement des feuilles, une paire d'ensembles de rouleaux de guidage et de transport (20, 21, 22), déplaçables chacun en commun avec les éléments porteurs et qui comportent chacun un rouleau de guidage (20) maintenant l'extrémité arrière de la feuille sur le cylindre d'impression (3), un premier rouleau de transport (22) librement tournant et roulant sur le côté supérieur de la feuille détachée et un second rouleau de transport roulant sur le côté inférieur de la feuille détachée, un arbre d'entraînement (50) commun aux seconds rouleaux de transport et sur lequel sont montés avec possibilité de translation longitudinale les seconds rouleaux de transport (21) ainsi qu'un dispositif directeur (23), supporté par les éléments porteurs, pour la feuille quittant les rouleaux de transport, caractérisé en ce qu'il est prévu en aval de chaque paire de rouleaux constitués respectivement d'un premier rouleau de transport (22) et d'un second rouleau de transport (21), une tôle directrice de feuille (23) mobile par translation en même temps que l'élément porteur (24), les éléments porteurs (24) sont montés pour leur fixation dans la direction de déplacement des feuilles sur une première traverse (25) et sur une seconde traverse (29) et le rouleau de guidage correspondant (20) ainsi que le premier rouleau de transport correspondant (22) de chaque ensemble de rouleaux de guidage et de transport (20, 21, 22) sont montés respectivement sur un levier (37, 31) monté de son côté de façon pivotante sur l'élément porteur (24) et soumis respectivement à une force de manoeuvre exercée par un ressort réglable (33, 41).
2. Dispositif récepteur de feuilles selon la revendication 1, caractérisé en ce que, comme élément porteur (24), il est prévu un corps de palier allongé qui peut être bloqué au moyen d'une vis à oreilles (26) sur la première traverse, agencée sous forme d'un arbre rond aplati (25) et qui s'appuie contre la seconde traverse (29) au moyen d'un support (28) de forme fourchue.
3. Dispositif récepteur de feuilles selon la revendication 1, caractérisé en ce que, sur chaque élément porteur (24) est fixé de façon séparable un étrier (45) transmettant un mouvement de translation transversale de l'élément porteur (24) au second rouleau de transport correspondant (21), cet étrier entourant le second rouleau de transport correspondant (21) sur ses côtés frontaux.
4. Dispositif récepteur de feuilles selon la revendication 1, caractérisé en ce que l'étrier (45) coopère avec des moyens de manoeuvre (46,47) agissant sur l'élément porteur (24) et déplaçant l'étrier (45) par rapport à l'élément porteur (24) dans la direction longitudinale de la première traverse (25).
5. Dispositif récepteur de feuilles selon la revendication 1, caractérisé en ce que comme moyens de manoeuvre, il est prévu des écrous moletés (46) vissés sur une tige filetée (47) fixée sur l'élément porteur (24) et agissant sur une branche (43) de l'étrier (45).
EP85103000A 1984-04-13 1985-03-15 Dispositif de sortie de feuilles, en particulier pour petites machines d'impression offset Expired EP0158836B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85103000T ATE37324T1 (de) 1984-04-13 1985-03-15 Bogenauslagevorrichtung, insbesonder fuer kleinoffsetmaschinen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3413943 1984-04-13
DE3413943A DE3413943C2 (de) 1984-04-13 1984-04-13 Bogenauslagevorrichtung, insbesondere für Kleinoffsetmaschinen

Publications (3)

Publication Number Publication Date
EP0158836A2 EP0158836A2 (fr) 1985-10-23
EP0158836A3 EP0158836A3 (en) 1986-06-04
EP0158836B1 true EP0158836B1 (fr) 1988-09-21

Family

ID=6233474

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85103000A Expired EP0158836B1 (fr) 1984-04-13 1985-03-15 Dispositif de sortie de feuilles, en particulier pour petites machines d'impression offset

Country Status (9)

Country Link
US (1) US4627609A (fr)
EP (1) EP0158836B1 (fr)
JP (1) JPS60219057A (fr)
AT (1) ATE37324T1 (fr)
AU (1) AU573318B2 (fr)
CA (1) CA1258272A (fr)
DE (1) DE3413943C2 (fr)
DK (1) DK116985A (fr)
ZA (1) ZA851306B (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6457040U (fr) * 1987-10-07 1989-04-10
US4884798A (en) * 1988-03-11 1989-12-05 Imagitek Copy turn around mechanism for reproduction machine
US5217220A (en) * 1991-08-19 1993-06-08 Carlson Herbert L Diverter for a printing press
DE19708213A1 (de) * 1996-04-09 1997-10-30 Heidelberger Druckmasch Ag Verfahren und Vorrichtung zur Produktführung in einem Falzbildungsbereich eines Falzapparates
US7229394B1 (en) * 2002-08-05 2007-06-12 Timothy Tyree Workout equipment
US6785503B2 (en) * 2002-10-02 2004-08-31 Xerox Corporation Stripper fingers and roller assembly for a fuser in a printing apparatus
US20080216229A1 (en) * 2007-03-07 2008-09-11 Timothy Johannes Bathtub Liner Overflow Gasket
JP6159520B2 (ja) * 2012-11-19 2017-07-05 リョービＭｈｉグラフィックテクノロジー株式会社 印刷機
CN109466961B (zh) * 2018-12-26 2023-09-29 郴州市海利微电子科技有限公司 偏光片模冲机的自动收片装置

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD25658A (fr) *
US1537645A (en) * 1924-08-26 1925-05-12 Lisenby Mfg Company Paper ejector for printing presses
US1741848A (en) * 1924-09-19 1929-12-31 American Type Founders Co Printing press
GB305838A (en) * 1928-02-25 1929-02-14 Ferdinand Fischer Improvements in or relating to rotary offset printing manifolders
DE547438C (de) * 1929-10-26 1932-03-26 American Type Founders Company Bogenausfuehrvorrichtung fuer Schwingzylinderschnellpressen
US2531253A (en) * 1947-01-10 1950-11-21 Jr Norman F Carden Attachment for presses
US2700933A (en) * 1953-04-01 1955-02-01 Thomas C White Antistreak means for duplicators
US2844372A (en) * 1955-09-28 1958-07-22 Liebenow Julius Gus Stripper mechanism
DE1160868B (de) * 1962-08-13 1964-01-09 Wilhelm Ritzerfeld Rotationsvervielfaeltiger zum Abdrucken von auf einer Drucktrommel befestigten Druckformen auf zu bedruckende Blaetter, Karten u. dgl.
GB1311031A (en) * 1969-09-13 1973-03-21 Ricoh Kk Sheet discharging apparatus
JPS5249957B2 (fr) * 1972-05-01 1977-12-21

Also Published As

Publication number Publication date
AU573318B2 (en) 1988-06-02
CA1258272A (fr) 1989-08-08
US4627609A (en) 1986-12-09
DK116985D0 (da) 1985-03-14
DE3413943C2 (de) 1987-04-02
EP0158836A2 (fr) 1985-10-23
AU4033185A (en) 1985-10-17
DK116985A (da) 1985-10-14
JPS60219057A (ja) 1985-11-01
ZA851306B (en) 1985-10-30
DE3413943A1 (de) 1985-10-24
EP0158836A3 (en) 1986-06-04
ATE37324T1 (de) 1988-10-15

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