EP0158836B1 - Sheet-delivery device, particularly for small offset printing machines - Google Patents

Sheet-delivery device, particularly for small offset printing machines 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
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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)
French (fr)
Other versions
EP0158836A2 (en
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/en
Publication of EP0158836A2 publication Critical patent/EP0158836A2/en
Publication of EP0158836A3 publication Critical patent/EP0158836A3/en
Application granted granted Critical
Publication of EP0158836B1 publication Critical patent/EP0158836B1/en
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)
  • Labeling Devices (AREA)
  • Handling Of Continuous Sheets Of Paper (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Vehicle Body Suspensions (AREA)
  • Aerials With Secondary Devices (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Discharge By Other Means (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)

Abstract

A sheet delivery device for a printing machine wherein a sheet is peeled from an impression cylinder and introduced into a nip formed between two conveyor rollers rolling on one another includes a sheet guiding device located downstream of the conveyor rollers in travel direction of a peeled sheet, guide rollers for a trailing region of the peeled sheet, the guide rollers being in operative engagement with the impression cylinder, a carrying element carrying and uniting the conveyor rollers, the sheet guiding device and the guide rollers into a single unit so that they are adjustable in common therewith to a selected format width, and adjusting means carried by the carrying element for adjusting respective forces of application of the conveyor rollers and the guide rollers.

Description

Die Erfindung betrifft eine Bogenauslagevorrichtung, insbesondere für Kleinoffsetdruckmaschinen, mit einer einen bedruckten Bogen von einem Druckzylinder ablösenden Abstreifeinrichtung, einem Paar von verschieblich und arretierbar auf einer sich quer zur Bogenlaufrichtung erstreckenden Traverse gelagerten Tragelementen, einem Paar von jeweils gemeinsam mit den Tragelementen verschieblichen Führungs- und Transportrollenanordnungen, welche jeweils eine das nachlaufende Ende des Bogens auf dem Druckzylinder niederhaltende Führungsrolle, eine auf der Oberseite des abgelösten Bogens abrollende frei drehbare erste Transportrolle und eine auf der Unterseite des abgelösten Bogens abrollende zweite Transportrolle aufweist, einer den zweiten Transportrollen gemeinsamen Antriebswelle, auf welcher die zweiten Transportrollen längsverschieblich gelagert sind sowie mit einer von den Tragelementen getragenen Leiteinrichtung für den die Transportrollen verlassenden Bogen.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.

Derartige Bogenauslagevorrichtungen sind in Kleinoffsetmaschinen, aber auch in zumindest ähnlicher Ausführung in Geräten oder Vorrichtungen zum Kopieren, Vervielfältigen oder Drucken für Büro- oder andere gewerbliche Zwecke in Gebrauch.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.

Für die ordnungsgemäße und störungsfreie Papierbogenauslage ist es erforderlich, daß die Bogenauslagevorrichtung beziehungsweise verschiedene ihrer im Gattungsbegriff genannten Bauteile zueinander einstellbar, bzw. insgesamt verstellbar sein müssen. Diese Notwendigkeiten ergeben sich beispielsweise aufgrund unterschiedlicher Formatbreiten und -dicken der Bogen.For the proper and trouble-free paper sheet delivery, it is necessary that 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.

Eine Bogenauslagevorrichtung gemäß dem Gattungsbegriff ist aus der US-PS-305 838 bekannt. Hierin sind jedoch die mittels eines Paares von Tragelementen (29') auf die Formatbreite eines bedruckten Bogens einstellbaren Führungs- und Transportrollenanordnungen mittels eines Paares von Schwenkarmen (26) um eine gemeinsame Achse schwenkbar und entbehren einer Möglichkeit zur individuellen Einstellung des Anstelldruckes der Führungsrolle und der oberen Transportrolle. Die den Transportrollen zugeordneten Bogenleiteinrichtungen sind in einem Ausführungsbeispiel der US-PS-305 838 gemeinsam mit den Transportrollen schwenkbar angeordnet. Hinweise auf eine Einstellung dieser Bogenleiteinrichtungen auf die Formatbreite sind hieraus nicht entnehmbar.A sheet delivery device according to the generic term is known from US-PS-305 838. Here, however, 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. In one embodiment of US Pat. No. 305,838, 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.

Bei einer anderen bekannten Bogenauslagevorrichtung gemäß US-PS-2 531 253 steht den mittels eines Paares von Tragelementen auf die Formatbreite einstellbaren oberen Transportrollen (17) eine sich im wesentlichen über die Breite der Druckmaschine erstreckende Tranportwalze (13) gegenüber. Damit ist eine gemeinsame Einstellung von unteren und oberen Transportrollen auf die Formatbreite des bedruckten Bogens nicht möglich. Ebensowenig möglich ist hierbei eine individuelle Einstellung der Andruckkräfte der Führungsrollen und der oberen Transportrollen, da die Führungsrollen (23) auf einer gemeinsamen Achse (19) gelagert sind, welche mittels eines mit einer ersten Feder (21) belasteten Hebels (20) gegen den Druckzylinder (16) angestellt ist und da die Tragelemente ihrerseits mit ihrem einen Ende an derselben Achse (19) angelenkt sind und die am anderen Ende der Tragelemente in den Tragelementen aufgenommenen oberen Führungsrollen über jeweils eine weitere am jeweiligen Tragelement angreifende Feder (34) gegen die Transportwalze (13) gedrückt werden. Dadurch ergibt sich nämlich eine Rückwirkung auf die Andruckkraft der Führungsrollen bzw. der oberen Transportrollen bei einer Änderung einer zur Einstellung der Andruckkraft der jeweils anderen Rollen vorgesehenen Einstellfeder.In another known sheet delivery device according to US Pat. No. 2,531,253, the upper transport rollers (17), which can be adjusted to the format width by means of a pair of support elements, are opposed by a transport roller (13) which extends essentially over the width of the printing press. This means that it is not possible to jointly adjust the lower and upper transport rollers to the format width of the printed sheet. An individual adjustment of the pressure forces of the guide rollers and the upper transport rollers is also not possible, since the guide rollers (23) are mounted on a common axis (19) which is pressed against the pressure cylinder by means of a lever (20) loaded with a first spring (21) (16) is employed and since the support elements are in turn articulated at one end to the same axis (19) and the upper guide rollers accommodated in the support elements at the other end of the support elements via a further spring (34) acting on the respective support element against the transport roller (13) can be pressed. This results in a reaction on the pressing force of the guide rollers or the upper transport rollers when a setting spring provided for adjusting the pressing force of the other rollers is changed.

Eine Bogenleiteinrichtung ist hierbei nicht vorgesehen.A sheet guide device is not provided here.

Eine aus der DE-OS-2 045 148 bekannte Bogenauslagevorrichtung unterscheidet sich hiervon im wesentlichen dadurch, daß hier die oberen Transportrollen (26, 27) ausschließlich unter Schwerkraftwirkung gegen eine Transportwalze (6) gedrückt werden, welche die Funktion von unteren Transportrollen übernimmt.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.

Aufgabe der vorliegenden Erfindung ist es, eine Bogenauslagevorrichtung, insbesondere für Kleinoffsetmaschinen, zu schaffen, die eine einfache und problemlose Handhabung hinsichtlich Einstellung der Formatbreite und des jeweiligen Anpreßdruckes der verwendeten Rollen ermöglicht und darüberhinaus eine schonende Behandlung der auszulegenden Bogen gewährleistet.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.

Die gestellte Aufgabe wird erfindungsgemäß durch eine Vorrichtung gemäß den Merkmalen des Patentanspruches 1 gelöst.The object is achieved according to the invention by a device according to the features of claim 1.

Diese Bogenauslagevorrichtung zeichnet sich dabei vor allem durch eine ausgesprochen kompakte und übersichtliche Bauweise aus. Ein wesentlicher Vorteil ist letztlich auch, daß alle Einstell- und Justierarbeiten selbst dann vorgenommen werden können, wenn die Maschine in Betrieb ist.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.

Weitere Vorteile der erfindungsgemäßen Vorrichtung ergeben sich aus den Unteransprüchen bzw. der Figurenbeschreibung. Eine besonders vorteilhafte Ausführungsform ist in den Zeichnungen dargestellt. Dabei zeigt

  • Fig. 1 eine schematische Darstellung des oberen Bereiches einer Kleinoffsetmaschine mit einer erfindungsgemäßen Bogenauslagevorrichtung,
  • Fig. 2 eine vergrößerte Darstellung der erfindungsgemäßen Bogenauslagevorrichtung nach Fig. 1, (Ansicht gemäß Pfeil 2 in Fig. 3)
  • Fig. 3 eine Ansicht gemäß Pfeil 3 in Fig. 2 und
  • Fig. 4 eine weitere Ansicht gemäß Pfeil 4 in Fig. 2.
Further advantages of the device according to the invention result from the subclaims or the description of the figures. A particularly advantageous embodiment is shown in the drawings. It shows
  • 1 is a schematic representation of the upper area of a small offset press with a sheet delivery device according to the invention,
  • 2 shows an enlarged illustration of the sheet delivery device according to the invention according to FIG. 1, (view according to arrow 2 in FIG. 3)
  • Fig. 3 is a view according to arrow 3 in Fig. 2 and
  • 4 shows a further view according to arrow 4 in FIG. 2nd

Bei der in Fig. 1 dargestellten Kleinoffsetmaschine wird ein zu bedruckender Bogen 5 vom Stapel 1 vereinzelt und über eine zuführeinrichtung 2 einem Druckzylinder 3 zugeführt. In dem Spalt zwischen diesem und einem Gummizylinder 4 erfolgt die Übertragung des Druckbildes. Der bedruckte Bogen 5 wird dann von einer Bogenauslagevorrichtung 6 übernommen und einem Auslagestapel 7 zugeführt. Das Druckbild erhält der Gummizylinder 4 dabei von einem ihm vorgelagerten Plattenzylinder 8, welcher über eine Auftragswalze 9, die mit einem Farb- und Feuchtwerk 10, 11 in Kontakt steht, die Druckfarbe erhält. Über den Steuerpult 12 erhält die Maschine die entsprechenden Befehle vom Maschinenbediener. Gummituchwascheinrichtung 61, Folieneinzugs-und Etcheinrichtung 62, 63 sind weitere wesentliche Bauelemente der Maschine.In the small offset press shown in FIG. 1, 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.

Fig. 2 nun zeigt in einer vergrößerten Darstellung die dem Druckzylinder 3 zugeordnete erfindungsgemäße Bogenauslagevorrichtung 6. Dabei ist ein Abstreifer 13 vorgesehen, der den Bogen 5 nach dessen Freigabe durch die Bogengreifer 14 vom Druckzylinder 3 löst und nachgeschalteten Transportrollen 21, 22 zuführt. Der aus mehreren über die Maschinenbreite in einer entsprechenden Anordnung verteilt angeordneten Abstreiferfingern 15 bestehende Abstreifer 13 ist mit seiner, diese Abstreiferfinger 15 tragenden Schiene 16 an den Seitenwänden 17, 18 der Maschine über Befestigungsschrauben 19 befestigt (Fig. 3). Nach Freigabe des Bogens 5 durch die Bogengreifer 14 und nach Abstreifen der Bogenvorderkante wird über eine am Druckzylinder 3 anliegende Führungsrolle 20 der hintere Bereich des Bogens 5 in Kontakt mit dem Druckzylinder 3 gehalten bis die Übernahme durch die Transportrollen 21, 22 erfolgt ist.2 now shows, in an enlarged view, the sheet delivery device 6 according to the invention associated with the printing cylinder 3. 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). After the sheet 5 has been released by the sheet gripper 14 and after the leading edge of the sheet has been wiped off, 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.

Letztere sind dabei als über die Bogenbreite gesehen der linken und rechten Bogenseite zugeordnete zylindrische Gummirollen 21 und an diese mit einer gewissen Anpreßkraft angestellte Anpreßrollen 22 ausgebildet. Der Anpreßdruck ist dabei über eine später noch näher zu beschreibende Einrichtung einstellbar.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.

Den Transportrollen 21, 22, d.h, insbesondere der zylindrischen Gummirolle 21 nachgeschaltet ist desweiteren ein jeweils links- und rechtsseitig angeordnetes Leitblech 23, welches derart geformt ist, daß der auszulegende Bogen 5 eine leichte Wölbung erhält, so daß seine innere Stabilität erhöht wird, um seinen weiteren Weg zum Auslagestapel 7 störungsfreier zu gestalten.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.

Führungsrolle 20 und Anpreßrolle 22 sind an einem als länglicher Lagerbock ausgebildeten Tragelement 24 gelagert, welches auf einer abgeflachten Rundachse 25 in Achsrichtung verschiebbar und mittels Knebelschraube 26 feststellbar geführt ist. Die abgeflachte Rundachse 25 ist durch Befestigungsschrauben 27 an den Seitenwänden 17,18 der Maschine befestigt. Das Tragelement 24 stützt sich dabei mit seiner gabelförmigen Ausladung 28 auf einer weiteren Achse 29 ab, deren Lagerung ebenfalls mittels Befestigungsschrauben 27 an den beiden Seitenwänden17, 18 erfolgt.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.

Jede Führungsrolle 20 ist desweiteren auf einem Hebel 31 drehbar gelagert, wobei dieser wiederum um einen Lagerbolzen 32 des Tragelementes 24 schwenkbar ist und sich an diesem über Druckfeder 33, Führungsbolzen 34 und Mutter 35 mit zugehöriger Kontermutter 30 federnd abstützt, um dadurch mit vorgebbarer Andrückkraft am Druckzylinder 3 anzuliegen.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.

Auch die Lagerung der Anpreßrolle 22 am Tragelement 24 erfolgt durch einen Achszapfen 36 und über einen Hebel 37, dessen anderes Ende über einen Lagerzapfen 38 mit dem Tragelement 24 verbunden ist. Über einen in einer Bohrung 39 des Tragelementes 24 geführten Bolzen 40, auf den eine Druckfeder 41 einwirkt, wird die Anpreßkraft über einen weiteren mit dem Lagerzapfen 38 verbundenen Hebel 60 auf die Anpreßrolle 22 übertragen.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.

Mittels einer auf die Druckfeder 41 einwirkenden Einstellschraube 42 mit einem vorgegebenen Einstellbereich kann die Anpreßkraft variiert werden. Der Einstellbereich umfaßt dabei beispielsweise weniger als eine Schraubenumdrehung.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.

Zwischen Knebelschraube 26 sowie Einstellschraube 42 und dem, dem Druckzylinder 3 zugewandten Bereich der Bogenauslagevorrichtung 6 ist ein Schutzschild 44 vorgesehen. Dadurch bleibt die freie Zugänglichkeit der vorgenannten Verstellelemente erhalten.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.

Gummirolle 21 sowie Leitblech 23 sind über einen Bügel 45 mit dem Tragelement 24 verbunden. Sie werden somit gleichzeitig mit der Anpreßrolle 22 seitlich verstellt. Leitblech 23 und Gummirolle 21 können darüberhinaus mittels Rändelmuttern 46, die auf eine Lasche 43 des Bügels 45 einwirken, relativ zu der Anpreßrolle 22 seitlich verstellt werden. Wie aus Fig. 4 ersichtlich sind die Rändelmuttern 46 auf einen Gewindestift 47 aufgeschraubt, welcher in eine Gewindebohrung 48 des Tragelementes 24 eingreift. Der Bügel 45 ist dabei an der unteren abgeflachten Seite 49 des Tragelementes 24 lösbar und entsprechend seitlich verschiebbar befestigt und umgreift weiterhin die Gummirolle 21.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.

Letztere ist, mit einem leichten Gleitsitz versehen, auf einer mit einer Längsnut 57 ausgestatteten Antriebswelle 50 gelagert und kann aufgrund der Mitnahmeverbindung mit dem Bügel 45 axial leicht verschoben werden.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.

Die Antriebswelle 50 ist dabei über Kugellager 51 in Achshalterungen 52 gelagert, welche jeweils an den beiden Seitenwänden 17, 18 über Befestigungsschrauben 53 befestigt sind.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.

Ein auf der Antriebswelle 50 drehfest gelagertes Zahnrad 54 vermittelt dieser über weitere Zahnräder 55, 56 der Antriebskette die Drehbewegung. Das zugeordnete Zahnrad 55 ist dabei auf einem mittels Befestigungsschrauben 58 an der Seitenwand 18 gehaltenen Lagerzapfen 59 drehbar gelagert.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.

TEILELISTEPARTS LIST

  • 1 Stapel1 stack
  • 2 Zuführeinrichtung2 feeding device
  • 3 Druckzylinder3 pressure cylinders
  • 4 Gummizylinder4 rubber cylinders
  • 5 Bogen5 sheets
  • 6 Bogenauslagevorrichtung6 sheet delivery device
  • 7 Auslagestapel7 delivery stacks
  • 8 Plattenzylinder8 plate cylinders
  • 9 Auftragswalze9 applicator roller
  • 10 Farbwerk10 inking unit
  • 11 Feuchtwerk11 dampening system
  • 12 Steuerpult12 control panel
  • 13 Abstreifer13 wipers
  • 14 Bogengreifer14 bow grabs
  • 15 Abstreiferfinger15 wiper fingers
  • 16 Schiene16 rail
  • 17 Seitenwand17 side wall
  • 18 Seitenwand18 side wall
  • 19 Befestigungsschraube19 fastening screw
  • 20 Führungsrolle20 leadership role
  • 21 zylindrische Gummirolle21 cylindrical rubber roller
  • 22 Anpreßrolle22 pressure roller
  • 23 Leitblech23 baffle
  • 24 Tragelement24 support element
  • 25 Rundachse25 rotary axis
  • 26 Knebelschraube26 toggle screw
  • 27 Befestigungsschraube27 fastening screw
  • 28 gabelförmige Ausladung28 fork-shaped throat
  • 29 Achse29 axis
  • 30 Kontermutter30 lock nut
  • 31 Hebel31 levers
  • 32 Lagerbolzen32 bearing bolts
  • 33 Druckfeder33 compression spring
  • 34 Führungsbolzen34 guide bolts
  • 35 Mutter35 mother
  • 36 Achszapfen36 axle journals
  • 37 Hebel37 levers
  • 38 Lagerzapfen38 bearing journals
  • 39 Bohrung39 hole
  • 40 Bolzen40 bolts
  • 41 Druckfeder41 compression spring
  • 42 Einstellschraube42 adjusting screw
  • 43 Lasche43 tab
  • 44 Schutzschild44 protective shield
  • 45 Bügel45 stirrups
  • 46 Rändelmutter46 knurled nut
  • 47 Gewindestift47 grub screw
  • 48 Gewindebohrung48 threaded hole
  • 49 untere abgeflachte Seite49 lower flattened side
  • 50 Antriebswelle50 drive shaft
  • 51 Kugellager51 ball bearings
  • 52 Achshalterung52 axle bracket
  • 53 Befestigungsschraube53 fixing screw
  • 54 Zahnrad54 gear
  • 55 Zahnrad55 gear
  • 56 Zahnrad56 gear
  • 57 Längsnut57 longitudinal groove
  • 58 Befestigungsschraube58 fastening screw
  • 59 Lagerzapfen59 journals
  • 60 Hebel60 levers
  • 61 Gummituchwascheinrichtung61 blanket washing device
  • 62 Folieneinzugseinrichtung62 film feed device
  • 63 Etcheinrichtung63 etching device

Claims (5)

1. Sheet delivery device, especially for small offset printing machines, comprising a stripping device (13) for peeling off a printed sheet (5) from an impression cylinder, a pair of carrying elements (24) being slidably and lockably mounted on a traverse extending transverse to the sheet run direction, a pair of guide and conveyor roller arrangements (20, 21, 22), being respectively slidable in unison with the carrying elements and each having a guide roller (20) holding the trailing sheet end down on the impression cylinder (3), a freely rotatable first conveyor roller (22) rolling off on the top side of the peeled-off sheet, and a second conveyor roller rolling off on the bottom side of the peeled-off sheet, a common drive shaft (50) for the second conveyor rollers on which the second conveyor rollers (21) are mounted so as to be longitudinally slidable, as well as a guiding device (23), carried by the carrying elements, for the sheet leaving the conveyor rollers,
characterized in that after each pair of conveyor rollers formed of a first conveyor roller (22) and a second conveyor roller (21) there is arranged a sheet guiding plate (23) being slidable together with the carrying element (24), that the carrying elements (24), for the purpose of locking, are mounted on a first traverse (25) and on a second traverse (29) extending in sheet run direction and the respective guide roller (20) as well as the respective first conveyor roller (22) of a respective guide and conveyor roller arrangement (20, 21, 22) are mounted on a lever (37, 31 ) which, in turn, is swivelably mounted on the carrying element (24) and braced against it by the tension force of an adjustable spring (33,41).
2. Sheet delivery device according to Claim 1,
characterized in that as a carrying element (24) there is provided an elongated bearing block which is lockable on the first traverse formed as a flattened round shaft (25) by means of a capstan- head screw (26) and which is braced against the traverse (29) by a fork-shaped projection (28).
3. Sheet delivery device according to Claim 1,
characterized in that at each carrying element (24) there is detachably fastened a bracket 45 which transmits a transverse sliding movement of the carrying elements (24) to the respective second conveyor roller (21), thereby embracing the roller ends.
4. Sheet delivery device according to Claim 1,
characterized in that the bracket (45) is operatively connected with adjustment means (46, 47) engaging at the carrying element (24) and adjusting the bracket (45) in longitudinal direction of the first traverse (25) with respect to the carrying element (24).
5. Sheet delivery device according to Claim 1,
characterized in that as an adjustment means there are provided knurled nuts (46) engaging at a strap (43) of the bracket (45) while being screwed onto a threaded pin (47) which is fastened to the carrying element (24).
EP85103000A 1984-04-13 1985-03-15 Sheet-delivery device, particularly for small offset printing machines Expired EP0158836B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85103000T ATE37324T1 (en) 1984-04-13 1985-03-15 SHEET DELIVERY DEVICE, ESPECIALLY FOR SMALL OFFSET MACHINES.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3413943 1984-04-13
DE19843413943 DE3413943A1 (en) 1984-04-13 1984-04-13 SHEET DISPLAY DEVICE, IN PARTICULAR FOR SMALL OFFSET MACHINES

Publications (3)

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

Family

ID=6233474

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85103000A Expired EP0158836B1 (en) 1984-04-13 1985-03-15 Sheet-delivery device, particularly for small offset printing machines

Country Status (9)

Country Link
US (1) US4627609A (en)
EP (1) EP0158836B1 (en)
JP (1) JPS60219057A (en)
AT (1) ATE37324T1 (en)
AU (1) AU573318B2 (en)
CA (1) CA1258272A (en)
DE (1) DE3413943A1 (en)
DK (1) DK116985A (en)
ZA (1) ZA851306B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6457040U (en) * 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 (en) * 1996-04-09 1997-10-30 Heidelberger Druckmasch Ag Method and device for product guidance in a fold formation area of a folding apparatus
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 (en) * 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 Printer
CN109466961B (en) * 2018-12-26 2023-09-29 郴州市海利微电子科技有限公司 Automatic sheet collecting device of polaroid die punch

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD25658A (en) *
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 (en) * 1929-10-26 1932-03-26 American Type Founders Company Sheet execution device for swing cylinder high-speed presses
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 (en) * 1962-08-13 1964-01-09 Wilhelm Ritzerfeld Rotary multiplier for printing of printing forms attached to a printing drum onto sheets, cards and the like to be printed. like
GB1311031A (en) * 1969-09-13 1973-03-21 Ricoh Kk Sheet discharging apparatus
JPS5249957B2 (en) * 1972-05-01 1977-12-21

Also Published As

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

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