EP2743220B1 - Adjustment of suction air to match sheet format - Google Patents

Adjustment of suction air to match sheet format Download PDF

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Publication number
EP2743220B1
EP2743220B1 EP13193256.8A EP13193256A EP2743220B1 EP 2743220 B1 EP2743220 B1 EP 2743220B1 EP 13193256 A EP13193256 A EP 13193256A EP 2743220 B1 EP2743220 B1 EP 2743220B1
Authority
EP
European Patent Office
Prior art keywords
switch
suction
contact element
counter
aligning according
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.)
Active
Application number
EP13193256.8A
Other languages
German (de)
French (fr)
Other versions
EP2743220A3 (en
EP2743220A2 (en
Inventor
David Ehrbar
Andreas MÜLLER
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
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Filing date
Publication date
Application filed by Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Publication of EP2743220A2 publication Critical patent/EP2743220A2/en
Publication of EP2743220A3 publication Critical patent/EP2743220A3/en
Application granted granted Critical
Publication of EP2743220B1 publication Critical patent/EP2743220B1/en
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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
    • B65H7/00—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H9/00—Registering, e.g. orientating, articles; Devices therefor
    • B65H9/10—Pusher and like movable registers; Pusher or gripper devices which move articles into registered position
    • B65H9/103—Pusher and like movable registers; Pusher or gripper devices which move articles into registered position acting by friction or suction on the article for pushing or pulling it into registered position, e.g. against a stop
    • B65H9/105—Pusher and like movable registers; Pusher or gripper devices which move articles into registered position acting by friction or suction on the article for pushing or pulling it into registered position, e.g. against a stop using suction means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/30—Suction means
    • B65H2406/35—Other elements with suction surface, e.g. plate or wall
    • B65H2406/351—Other elements with suction surface, e.g. plate or wall facing the surface of the handled material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/30—Suction means
    • B65H2406/36—Means for producing, distributing or controlling suction
    • B65H2406/361—Means for producing, distributing or controlling suction distributing vacuum from stationary element to movable element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/30—Suction means
    • B65H2406/36—Means for producing, distributing or controlling suction
    • B65H2406/362—Means for producing, distributing or controlling suction adjusting or controlling distribution of vacuum transversally to the transport direction, e.g. according to the width of material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/30—Suction means
    • B65H2406/36—Means for producing, distributing or controlling suction
    • B65H2406/363—Means for producing, distributing or controlling suction adjusting or controlling distribution of vacuum for a plurality of suction means
    • B65H2406/3632—Means for producing, distributing or controlling suction adjusting or controlling distribution of vacuum for a plurality of suction means means for auto adjustment of vacuum distribution according to the size of handled material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/10—Size; Dimensions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/20—Location in space
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2515/00—Physical entities not provided for in groups B65H2511/00 or B65H2513/00
    • B65H2515/30—Forces; Stresses
    • B65H2515/34—Pressure, e.g. fluid pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2801/00—Application field
    • B65H2801/03—Image reproduction devices
    • B65H2801/21—Industrial-size printers, e.g. rotary printing press

Definitions

  • the invention relates to a device for aligning arcuate elements according to the preamble of claim 1.
  • a device which feeds sheets to a sheet processing machine in a precisely aligned manner.
  • the device has a suction bar, which can suck up and hold a respective sheet.
  • the squeegee can be adjusted by motor in three degrees of freedom in the alignment plane and thus bring about an alignment of a respective arch: alignment in the circumferential direction, alignment transversely to the circumferential direction and a rotary movement in the alignment plane.
  • a disadvantage of this device is that no adaptation of the suction bar to the sheet format is provided. If not all suction openings of the suction bar are covered by a respective sheet, the suction pressure can collapse and the function of the suction bar can be canceled.
  • the device according to the invention serves to align arc-shaped elements in one plane (alignment plane) with a contact element which can be moved in at least two degrees of freedom (in or parallel to the alignment plane) and which contacts and holds the arc-shaped elements during their alignment, and with at least two controllable drives Move the contact element in the plane.
  • the changeable contact element has at least one switch with at least two switch positions and a counter element assigned to a respective switch. The at least one switch and the at least one counter element can each be brought into mechanical engagement with one another by means of the actuatable drives in order to adjust the at least one switch.
  • the switch can be actuated or adjusted by moving the contact element with the switch by means of the drives. This results from the relative movement of the switch and counter element.
  • the drives can be controlled such that the contact element with the at least one switch can be advanced to a respective counter element and, after mechanical engagement of the switch and counter element, the contact element can be moved relative to the counter element to adjust the switch ,
  • the switch is adjusted by deliberately moving the contact element by appropriately controlling the at least two controllable drives.
  • the actuators can be actuated or adjusted by moving the contact element with the switch attached to it Switch. This results from the relative movement of the switch and counter element.
  • the at least one switch can be designed as a rotary switch, toggle switch or slide switch.
  • the at least one counter element can in particular be fixed to the frame.
  • the at least two degrees of freedom of the contact element include mobility in a circumferential direction, transverse to the circumferential direction and, if appropriate, additionally rotational mobility in the plane.
  • the at least one switch and a respective counter element have complementarily profiled surfaces which are serrated, for example.
  • the switch can be designed as a rotary switch with external teeth and the counter element as a rack.
  • a respective switch position of the switch is assigned to a specific format of the arcuate elements, that is to say that the format of the contact element can be adapted by actuating the switch.
  • the contact element can be designed as a suction bar or as a suction plate and an adjustment of the at least one switch can bring about an adaptation of the suction area, in particular to adapt to the format of the arcuate elements.
  • the at least one switch is designed as a rotary valve and the suction bar or the suction plate has a plurality of suction openings which are continued in suction channels, ie the suction openings are each located at the end of a suction channel. By actuating the switch, the rotary valve connects one or more suction channels to a vacuum source and a vacuum is thereby provided at a respective suction opening.
  • the switch positions of the at least one switch merge into one another in a stepless manner and the contact element can be changed steplessly.
  • a continuous adjustment to any sheet format width is possible.
  • Figure 1 shows in a view from below an aligning device 10, which, viewed in the transport direction T, is arranged between a feeder 20 and a sheet-processing machine 30.
  • the alignment device 10 removes one from the feeder 20 coming sheet 100 gripped, aligned and transferred to gripper 31 of the sheet processing machine 30.
  • the alignment device 10 has a contact element 2, which in the embodiment according to Figure 1 is designed as a suction plate.
  • the contact element 2 is constructed symmetrically to a central axis, wherein in Figure 1 only one half is shown.
  • the contact element 2 can be moved by three drives 1 in its degrees of freedom 5 to the first in the circumferential direction, ie in the transport direction T, the second transversely to the circumferential direction T and the third by rotating in the alignment plane, whereby a respective sheet 100 can be aligned.
  • the contact element 2 has a plurality of suction openings 9, via which a negative pressure is provided and as a result of which a respective sheet 100 is sucked and held on the contact element 2.
  • the held sheet 100 can thus be aligned by an alignment movement of the contact element 2.
  • individual suction openings 9 can be switched on (and later switched off again).
  • the two internal suction openings 9 are permanently connected to the vacuum inlet 14 via suction channels 8, so that a vacuum acts permanently at these suction openings 9.
  • the additional three suction openings 9 can be switched on via a switch 3. This is done by a rotary movement v of the switch 3.
  • the switch 3 is designed as a rotary valve which enables the vacuum inlet 14 to be connected to additional suction channels 8.
  • the knob 3 can be made of plastic in order to achieve a good sealing effect with good wear and friction properties.
  • the alignment device 10 has a counter element 4 which is connected to the machine frame 7 and is thus designed to be fixed to the frame.
  • the switch 3 and the counter element 4 are spaced apart from one another and do not come into contact with one another.
  • the contact element 2 is to be changed, ie if the suction plate 2 is to be adapted to the sheet format of a respective sheet 100, then the switch 3 and that Counter element 4 is brought into mechanical engagement with one another by a feed movement, which can be achieved, for example, by a movement of the contact element 2 carried out by the drives 1.
  • the contact element 2 can be displaced by the drives 1 essentially transversely to the transport direction T.
  • the switch 3 and the counter element 4 are in mechanical engagement with one another, an alignment movement of the contact element 2 essentially in the sheet transport direction T can cause the switch 3 to be rotated relative to the fixed counter element 4.
  • the rotary movement of the switch 3 allows the rotary valve of the switch 3 to be adjusted such that a further suction channel 8 is connected to the vacuum inlet 14.
  • the switch 3 can be provided with external teeth 6 and the counter element 4 can be designed as a rack.
  • the switch 3 is designed as a slide switch with a toothed rack and the counter element 4 as a toothed wheel connected to the machine frame 7 or also as a toothed rack.
  • the contact element 2 can carry out several strokes.
  • the subsequent stroke is always offset by an integer multiple of the tooth pitch of the toothed rack in order to ensure clean meshing of the teeth of the toothed wheel and toothed rack.
  • the switch 3 can also have a latching device (not shown here) which can consist of a bent spring plate which engages in grooves or depressions on the toothing 6 of the switch 3. These grooves or depressions are each assigned switch positions of the switch 3, so that a position of the switch 3 which has been set once is maintained until the next setting process, even if the contact element 2 is vibrated during operation, i. H. Experiences vibrations.
  • a latching device (not shown here) which can consist of a bent spring plate which engages in grooves or depressions on the toothing 6 of the switch 3.
  • the counter element 4 is moved into an area in which the switch 3 can be brought by displacement of the contact element 2 and the profiled surfaces 6 of the switch 3 and counter element, here designed as toothing, can be brought into engagement with one another.
  • the switch 3 have a profiled surface 6, which is designed as a helical non-circular gear.
  • a sensor 15 fixed to the frame can alternatively be provided to detect the current switching position of the switch 3.
  • the sensor 15 can be designed, for example, as an inductive or capacitive proximity sensor, which detects an iron-metallic component incorporated in the surface of the switch 3 and can thus recognize a reference position of the rotary switch 3.
  • FIG 3a is in a top view and in Figure 3b shown in a view how a collision in the event of a malfunction of one of the drives 1 can be prevented by the contact element 2 with the counter element 4.
  • stops 12 are provided which, although they allow the contact element 2 to be moved to align the sheet 100, block a larger travel range that goes beyond this.
  • These stops 12 are each adjustable by actuators 13, can be pivoted, for example, by pneumatic cylinders 13, and, in their inactive position, open up a larger travel range. In this larger travel range, switch 3 and counter element 4 can then be brought into engagement with one another and, as explained above, switch 3 can be adjusted by relative movement of switch 3 and counter element 4.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Mechanical Control Devices (AREA)
  • Switches With Compound Operations (AREA)

Description

Die Erfindung betrifft eine Vorrichtung zum Ausrichten von bogenförmigen Elementen gemäß dem Oberbegriff von Anspruch 1.The invention relates to a device for aligning arcuate elements according to the preamble of claim 1.

Stand der TechnikState of the art

Aus der DE 44 06 740 A1 ist eine Vorrichtung bekannt, welche Bogen passergenau ausgerichtet einer Bogen bearbeitenden Maschine zuführt. Die Vorrichtung besitzt dazu einen Saugbalken, welcher einen jeweiligen Bogen ansaugen und damit halten kann. Der Saugbalken kann motorisch in drei Freiheitsgraden in der Ausrichtebene verstellt werden und somit eine Ausrichtung eines jeweiligen Bogens bewirken: Eine Ausrichtung in Umfangsrichtung, eine Ausrichtung quer zur Umfangsrichtung und eine Drehbewegung in der Ausrichtebene. Nachteilig an dieser Vorrichtung ist, dass keine Anpassung der Saugleiste an das Bogenformat vorgesehen ist. Werden nicht alle Saugöffnungen der Saugleiste durch einen jeweiligen Bogen abgedeckt, so kann der Saugdruck zusammenbrechen und die Funktion der Saugleiste aufgehoben werden. Um diesem Problem zu begegnen, ist es aus dem Stand der Technik bekannt, entweder eine händische Anpassung der Saugleiste durch den Maschinenbediener vorzusehen oder einen Verstellmotor auf der Saugleiste zu montieren, um so eine Anpassung der Saugleiste an das Bogenformat sicher zu stellen. Problematisch bei ersterer Lösung ist deren Fehleranfälligkeit und das Zeiterfordernis; problematisch an der zweiten Lösung ist die höhere bewegte Masse und der hohe Verschleiß der vielbewegten Anschlusskabel des Verstellmotors.From the DE 44 06 740 A1 a device is known which feeds sheets to a sheet processing machine in a precisely aligned manner. For this purpose, the device has a suction bar, which can suck up and hold a respective sheet. The squeegee can be adjusted by motor in three degrees of freedom in the alignment plane and thus bring about an alignment of a respective arch: alignment in the circumferential direction, alignment transversely to the circumferential direction and a rotary movement in the alignment plane. A disadvantage of this device is that no adaptation of the suction bar to the sheet format is provided. If not all suction openings of the suction bar are covered by a respective sheet, the suction pressure can collapse and the function of the suction bar can be canceled. To counter this problem, it is known from the prior art either to provide a manual adjustment of the suction bar by the machine operator or to mount an adjustment motor on the suction bar in order to ensure an adjustment of the suction bar to the sheet format. The problem with the former solution is its susceptibility to errors and the time requirement; The problem with the second solution is the higher moving mass and the high wear of the moving connecting cables of the adjustment motor.

DE 198 04 120 A1 offenbart, eine Vorrichtung gemäß dem Oberbegriff des Anspruchs 1. Aufgabenstellung DE 198 04 120 A1 discloses a device according to the preamble of claim 1

Aufgabe der vorliegenden Erfindung ist es daher, eine Vorrichtung zum Ausrichten zu schaffen, welche die Nachteile des Standes der Technik zumindest verringert und eine einfache und automatisierbare Veränderung eines Kontaktelements ermöglicht.It is therefore the object of the present invention to provide an alignment device which at least reduces the disadvantages of the prior art and enables a simple and automatable change of a contact element.

Gelöst wird diese Aufgabe durch eine Vorrichtung mit den Merkmalen von Anspruch 1.This object is achieved by a device with the features of claim 1.

Die erfindungsgemäße Vorrichtung dient dem Ausrichten von bogenförmigen Elementen in einer Ebene (Ausrichtebene) mit einem in mindestens zwei Freiheitsgraden (in oder parallel zur Ausrichtebene) beweglichen veränderbaren Kontaktelement, welches die bogenförmigen Elemente während deren Ausrichtung kontaktiert und hält, und mit mindestens zwei ansteuerbaren Antrieben zum Bewegen des Kontaktelements in der Ebene. Erfindungsgemäß weist das veränderbare Kontaktelement mindestens einen Schalter mit mindestens zwei Schaltstellungen auf und ein einem jeweiligen Schalter zugeordnetes Gegenelement. Der mindestens eine Schalter und das mindestens eine Gegenelement sind mittels der ansteuerbaren Antriebe jeweils in mechanischen Eingriff miteinander bringbar zur Verstellung des mindestens einen Schalters. Sobald der mindestens eine Schalter und das mindestens eine Gegenelement in Eingriff sind kann durch eine Bewegung des Kontaktelements mit dem Schalter mittels der Antriebe eine Betätigung bzw. Verstellung des Schalters erfolgen. Diese ergibt sich durch die Relativbewegung von Schalter und Gegenelement.
Diese Lösung hat den Vorteil, dass kein zusätzlicher Stellantrieb erforderlich ist für die Veränderung des Kontaktelements, dass keine schweren mechanischen oder elektronischen Komponenten auf dem Kontaktelement befestigt werden müssen und dass die Veränderung des Kontaktelements keinen Eingriff des Maschinenbedieners erfordert.The device according to the invention serves to align arc-shaped elements in one plane (alignment plane) with a contact element which can be moved in at least two degrees of freedom (in or parallel to the alignment plane) and which contacts and holds the arc-shaped elements during their alignment, and with at least two controllable drives Move the contact element in the plane. According to the invention, the changeable contact element has at least one switch with at least two switch positions and a counter element assigned to a respective switch. The at least one switch and the at least one counter element can each be brought into mechanical engagement with one another by means of the actuatable drives in order to adjust the at least one switch. As soon as the at least one switch and the at least one counter element are in engagement, the switch can be actuated or adjusted by moving the contact element with the switch by means of the drives. This results from the relative movement of the switch and counter element.
This solution has the advantage that no additional actuator is required for changing the contact element, that no heavy mechanical or electronic components have to be attached to the contact element and that the change in the contact element does not require any intervention by the machine operator.

In einer besonders vorteilhaften und daher bevorzugten Weiterbildung der erfindungsgemäßen Vorrichtung sind die Antriebe derart ansteuerbar, dass das Kontaktelement mit dem mindestens einen Schalter zu einem jeweiligen Gegenelement zustellbar und nach mechanischem Eingriff von Schalter und Gegenelement das Kontaktelement relativ zu dem Gegenelement verfahrbar ist zum Verstellen des Schalters. Das heißt, die Verstellung des Schalters erfolgt durch gezielte Bewegung des Kontaktelements durch entsprechende Ansteuerung der mindestens zwei ansteuerbaren Antriebe. In anderen Worten: Sobald der mindestens eine Schalter und das mindestens eine Gegenelement in Eingriff sind kann durch eine Bewegung des Kontaktelements mit dem daran befestigten Schalter mittels der Antriebe eine Betätigung bzw. Verstellung des Schalters erfolgen. Diese ergibt sich durch die Relativbewegung von Schalter und Gegenelement.In a particularly advantageous and therefore preferred development of the device according to the invention, the drives can be controlled such that the contact element with the at least one switch can be advanced to a respective counter element and, after mechanical engagement of the switch and counter element, the contact element can be moved relative to the counter element to adjust the switch , This means that the switch is adjusted by deliberately moving the contact element by appropriately controlling the at least two controllable drives. In other words: as soon as the at least one switch and the at least one counter element are in engagement, the actuators can be actuated or adjusted by moving the contact element with the switch attached to it Switch. This results from the relative movement of the switch and counter element.

Der mindestens eine Schalter kann dabei als Drehschalter, Kippschalter oder Schiebeschalter ausgeführt sein.
Das mindestens eine Gegenelement kann insbesondere gestellfest sein.The at least one switch can be designed as a rotary switch, toggle switch or slide switch.
The at least one counter element can in particular be fixed to the frame.

Weiter vorteilhaft ist es, wenn die mindestens zwei Freiheitsgrade des Kontaktelements eine Beweglichkeit in einer Umfangsrichtung, quer zu der Umfangsrichtung und gegebenenfalls zusätzlich eine Drehbeweglichkeit in der Ebene umfassen.It is further advantageous if the at least two degrees of freedom of the contact element include mobility in a circumferential direction, transverse to the circumferential direction and, if appropriate, additionally rotational mobility in the plane.

In vorteilhafter Ausgestaltung der erfindungsgemäßen Vorrichtung weisen der mindestens eine Schalter und ein jeweiliges Gegenelement komplementär profilierte Oberflächen auf, welche zum Beispiel gezahnt sind. So kann der Schalter als Drehschalter mit einer Außenverzahnung und das Gegenelement als Zahnstange ausgeführt sein.In an advantageous embodiment of the device according to the invention, the at least one switch and a respective counter element have complementarily profiled surfaces which are serrated, for example. The switch can be designed as a rotary switch with external teeth and the counter element as a rack.

In einer besonders vorteilhaften und daher bevorzugten Ausführungsform der erfindungsgemäßen Vorrichtung ist eine jeweilige Schaltstellung des Schalters einem bestimmten Format der bogenförmigen Elemente zugeordnet, d.h., dass durch Betätigen des Schalters eine Formatanpassung des Kontaktelements vorgenommen werden kann. In vorteilhafter Weiterbildung kann das Kontaktelement dabei als Saugbalken oder als Saugplatte ausgeführt sein und eine Verstellung des mindestens einen Schalters eine Anpassung des Saugbereichs bewirken, insbesondere zur Anpassung an das Format der bogenförmigen Elemente.
In einer vorteilhaften Weiterbildung ist der mindestens eine Schalter als Drehventil ausgeführt und der Saugbalken oder die Saugplatte weist eine Mehrzahl von Saugöffnungen auf, welche in Saugkanälen fortgesetzt werden, d.h. die Saugöffnungen sitzen jeweils am Ende eines Saugkanals. Durch Betätigung des Schalters verbindet das Drehventil einen oder mehrere Saugkanäle mit einer Unterdruckquelle und an einer jeweiligen Saugöffnung wird dadurch ein Unterdruck bereit gestellt.In a particularly advantageous and therefore preferred embodiment of the device according to the invention, a respective switch position of the switch is assigned to a specific format of the arcuate elements, that is to say that the format of the contact element can be adapted by actuating the switch. In an advantageous development, the contact element can be designed as a suction bar or as a suction plate and an adjustment of the at least one switch can bring about an adaptation of the suction area, in particular to adapt to the format of the arcuate elements.
In an advantageous development, the at least one switch is designed as a rotary valve and the suction bar or the suction plate has a plurality of suction openings which are continued in suction channels, ie the suction openings are each located at the end of a suction channel. By actuating the switch, the rotary valve connects one or more suction channels to a vacuum source and a vacuum is thereby provided at a respective suction opening.

In einer vorteilhaften Ausführungsvariante der erfindungsgemäßen Vorrichtung zum Ausrichten gehen die Schaltstellungen des mindestens einen Schalters stufenlos ineinander über und das Kontaktelement kann stufenlos verändert werden. Beispielsweise ist so eine stufenlose Anpassung an eine beliebige Bogenformatbreite möglich.In an advantageous embodiment of the alignment device according to the invention, the switch positions of the at least one switch merge into one another in a stepless manner and the contact element can be changed steplessly. For example, a continuous adjustment to any sheet format width is possible.

Die beschriebene Erfindung und die beschriebenen vorteilhaften Weiterbildungen der Erfindung stellen auch in beliebiger Kombination miteinander vorteilhafte Weiterbildungen der Erfindung dar.The described invention and the described advantageous developments of the invention also represent advantageous developments of the invention in any combination with one another.

Hinsichtlich weiterer Vorteile und in konstruktiver und funktioneller Hinsicht vorteilhafter Ausgestaltungen der Erfindung wird auf die Unteransprüche sowie die Beschreibung von Ausführungsbeispielen unter Bezugnahme auf die beiliegenden Zeichnungen verwiesen.With regard to further advantages and in constructively and functionally advantageous embodiments of the invention, reference is made to the subclaims and the description of exemplary embodiments with reference to the accompanying drawings.

Ausführungsbeispielembodiment

Die Erfindung soll anhand bevorzugter Ausführungsbeispiele noch näher erläutert werden. Es zeigen in schematischer Darstellung:

Figur 1:
die erfindungsgemäße Vorrichtung zum Ausrichten
Figuren 2a und 2b:
alternative Ausgestaltungen von Schalter und Gegenelement
Figuren 3a und 3b:
eine Einrichtung zur Kollisionsverhinderung während dem Betrieb der Vorrichtung zum Ausrichten
The invention will be explained in more detail with the aid of preferred exemplary embodiments. In a schematic representation:
Figure 1:
the alignment device according to the invention
Figures 2a and 2b:
alternative configurations of switch and counter element
Figures 3a and 3b:
means for collision prevention during operation of the alignment device

Einander entsprechende Elemente und Bauteile sind in den Figuren mit gleichen Bezugszeichen versehen.Corresponding elements and components are provided with the same reference symbols in the figures.

Figur 1 zeigt in einer Ansicht von unten eine Ausrichtvorrichtung 10, welche in Transportrichtung T betrachtet zwischen einem Anleger 20 und einer Bogen bearbeitenden Maschine 30 angeordnet ist. Durch die Ausrichtvorrichtung 10 wird ein von dem Anleger 20 kommender Bogen 100 ergriffen, ausgerichtet und an Greifer 31 der Bogen bearbeitenden Maschine 30 übergeben. Figure 1 shows in a view from below an aligning device 10, which, viewed in the transport direction T, is arranged between a feeder 20 and a sheet-processing machine 30. The alignment device 10 removes one from the feeder 20 coming sheet 100 gripped, aligned and transferred to gripper 31 of the sheet processing machine 30.

Die Ausrichtvorrichtung 10 besitzt ein Kontaktelement 2, welches in der Ausführungsform gemäß Figur 1 als Saugplatte ausgeführt ist. Das Kontaktelement 2 ist symmetrisch zu einer Mittelachse aufgebaut, wobei in Figur 1 nur eine Hälfte dargestellt ist. Das Kontaktelement 2 kann von drei Antrieben 1 in seinen Freiheitsgraden 5 zum ersten in Umfangsrichtung, d. h. in Transportrichtung T, zum zweiten quer zur Umfangsrichtung T und zum dritten durch Verdrehen in der Ausrichtebene bewegt werden, wodurch ein jeweiliger Bogen 100 ausgerichtet werden kann. Das Kontaktelement 2 besitzt dazu eine Mehrzahl von Saugöffnungen 9, über welche ein Unterdruck bereitgestellt wird und wodurch ein jeweiliger Bogen 100 an das Kontaktelement 2 angesaugt und gehalten wird. Der gehaltene Bogen 100 kann so durch eine Ausrichtbewegung des Kontaktelements 2 ausgerichtet werden.
Um eine Veränderung des Kontaktelements 2 in Abhängigkeit vom Bogenformat des zu bearbeitenden Bogens 100 zu ermöglichen, können einzelne Saugöffnungen 9 zugeschaltet (und später wieder abgeschaltet) werden. In der Darstellung von Figur 1 sind die zwei innenliegenden Saugöffnungen 9 permanent über Saugkanäle 8 mit der Unterdruckeinleitung 14 verbunden, so dass an diesen Saugöffnungen 9 permanent ein Unterdruck wirkt. Die zusätzlichen drei Saugöffnungen 9 können über einen Schalter 3 zugeschaltet werden. Dies erfolgt durch eine Drehbewegung v des Schalters 3. In anderen Worten: Der Schalter 3 ist als Drehventil ausgeführt, welches eine Verbindung der Unterdruckeinleitung 14 mit zusätzlichen Saugkanälen 8 ermöglicht. Der Drehknopf 3 kann dabei aus Kunststoff bestehen, um eine gute Dichtwirkung bei gleichzeitig guten Verschleiß- und Reibungseigenschaften zu erzielen.
Weiter besitzt die Ausrichtvorrichtung 10 ein Gegenelement 4, welches mit dem Maschinengestell 7 verbunden ist und somit gestellfest ausgeführt ist. Während dem normalen Betrieb der Ausrichtvorrichtung 10, d. h. beim Ausrichten von Bogen 100 durch die Ausrichtvorrichtung 10, sind der Schalter 3 und das Gegenelement 4 beabstandet voneinander und kommen nicht miteinander in Kontakt. Soll jedoch eine Veränderung des Kontaktelements 2 erfolgen, d. h. wenn die Saugplatte 2 an das Bogenformat eines jeweiligen Bogens 100 angepasst werden soll, so wird der Schalter 3 und das Gegenelement 4 in mechanischen Eingriff miteinander gebracht durch eine Zustellbewegung, welche beispielsweise durch eine von den Antrieben 1 ausgeführte Bewegung des Kontaktelements 2 erreicht werden kann. Dazu kann das Kontaktelement 2 von den Antrieben 1 im Wesentlichen quer zur Transportrichtung T verschoben werden. Sobald der Schalter 3 und das Gegenelement 4 im mechanischen Eingriff miteinander stehen, kann durch eine Ausrichtbewegung des Kontaktelements 2 im Wesentlichen in Bogentransportrichtung T ein Verdrehen v des Schalters 3 relativ zu dem feststehenden Gegenelement 4 bewirkt werden. Durch die Drehbewegung des Schalters 3 kann das Drehventil des Schalters 3 derart verstellt werden, dass ein weiterer Saugkanal 8 mit der Unterdruckeinleitung 14 verbunden wird.
Wie dargestellt, kann der Schalter 3 mit einer Außenverzahnung 6 versehen sein und das Gegenelement 4 kann als Zahnstange ausgeführt sein.
In einer alternativen, nicht dargestellten Ausführungsform ist es auch denkbar, dass der Schalter 3 als Schiebeschalter mit einer Zahnstange und das Gegenelement 4 als mit dem Maschinengestell 7 verbundenes Zahnrad oder ebenfalls als Zahnstange ausgeführt ist. Sollen mehrere Saugkanäle 8 und damit mehrere Saugöffnungen 9 aktiviert werden und ist ein großer Verstellweg des Kontaktelements 2 erforderlich, so kann das Kontaktelement 2 mehrere Hübe durchführen. Hierbei setzt - bezogen auf die ersgenannte Ausführungsform - der nachfolgende Hub jeweils immer um ein ganzzahliges Vielfaches der Zahnteilung der Zahnstange versetzt an, um ein sauberes Kämmen der Zähne von Zahnrad und Zahnstange sicher zu stellen.The alignment device 10 has a contact element 2, which in the embodiment according to Figure 1 is designed as a suction plate. The contact element 2 is constructed symmetrically to a central axis, wherein in Figure 1 only one half is shown. The contact element 2 can be moved by three drives 1 in its degrees of freedom 5 to the first in the circumferential direction, ie in the transport direction T, the second transversely to the circumferential direction T and the third by rotating in the alignment plane, whereby a respective sheet 100 can be aligned. For this purpose, the contact element 2 has a plurality of suction openings 9, via which a negative pressure is provided and as a result of which a respective sheet 100 is sucked and held on the contact element 2. The held sheet 100 can thus be aligned by an alignment movement of the contact element 2.
In order to enable a change of the contact element 2 depending on the sheet format of the sheet 100 to be processed, individual suction openings 9 can be switched on (and later switched off again). In the representation of Figure 1 the two internal suction openings 9 are permanently connected to the vacuum inlet 14 via suction channels 8, so that a vacuum acts permanently at these suction openings 9. The additional three suction openings 9 can be switched on via a switch 3. This is done by a rotary movement v of the switch 3. In other words: the switch 3 is designed as a rotary valve which enables the vacuum inlet 14 to be connected to additional suction channels 8. The knob 3 can be made of plastic in order to achieve a good sealing effect with good wear and friction properties.
Furthermore, the alignment device 10 has a counter element 4 which is connected to the machine frame 7 and is thus designed to be fixed to the frame. During normal operation of the alignment device 10, ie when aligning sheets 100 by the alignment device 10, the switch 3 and the counter element 4 are spaced apart from one another and do not come into contact with one another. However, if the contact element 2 is to be changed, ie if the suction plate 2 is to be adapted to the sheet format of a respective sheet 100, then the switch 3 and that Counter element 4 is brought into mechanical engagement with one another by a feed movement, which can be achieved, for example, by a movement of the contact element 2 carried out by the drives 1. For this purpose, the contact element 2 can be displaced by the drives 1 essentially transversely to the transport direction T. As soon as the switch 3 and the counter element 4 are in mechanical engagement with one another, an alignment movement of the contact element 2 essentially in the sheet transport direction T can cause the switch 3 to be rotated relative to the fixed counter element 4. The rotary movement of the switch 3 allows the rotary valve of the switch 3 to be adjusted such that a further suction channel 8 is connected to the vacuum inlet 14.
As shown, the switch 3 can be provided with external teeth 6 and the counter element 4 can be designed as a rack.
In an alternative embodiment, not shown, it is also conceivable that the switch 3 is designed as a slide switch with a toothed rack and the counter element 4 as a toothed wheel connected to the machine frame 7 or also as a toothed rack. If several suction channels 8 and thus several suction openings 9 are to be activated and a large adjustment path of the contact element 2 is required, the contact element 2 can carry out several strokes. Here - based on the aforementioned embodiment - the subsequent stroke is always offset by an integer multiple of the tooth pitch of the toothed rack in order to ensure clean meshing of the teeth of the toothed wheel and toothed rack.

Der Schalter 3 kann weiter eine Rastvorrichtung aufweisen (hier nicht dargestellt), die aus einem gebogenen Federblech bestehen kann, welches in Nuten bzw. Vertiefungen auf der Verzahnung 6 des Schalters 3 eingreift. Diese Nuten bzw. Vertiefungen sind jeweils Schaltstellungen des Schalters 3 zugeordnet, so dass eine einmal eingestellte Lage des Schalters 3 bis zum nächsten Einstellvorgang beibehalten wird, selbst dann, wenn das Kontaktelement 2 im Betrieb Erschütterungen, d. h. Vibrationen erfährt.The switch 3 can also have a latching device (not shown here) which can consist of a bent spring plate which engages in grooves or depressions on the toothing 6 of the switch 3. These grooves or depressions are each assigned switch positions of the switch 3, so that a position of the switch 3 which has been set once is maintained until the next setting process, even if the contact element 2 is vibrated during operation, i. H. Experiences vibrations.

Um eine Kollision des Schalters 3 mit dem Gegenelement 4 im Normalbetrieb der Ausrichtvorrichtung 10 zu verhindern, kann, wie in Figur 2 dargestellt, vorgesehen sein, dass ein am Maschinengestell 7 befestigter Pneumatikzylinder 13 eine ggfs. zusätzliche Zustellbewegung des Gegenelements 4 realisiert. Dadurch wird das Gegenelement 4 in einen Bereich gefahren, in welchen der Schalter 3 durch Verschiebung des Kontaktelements 2 gebracht werden kann und die profilierten Oberflächen 6 von Schalter 3 und Gegenelement, hier ausgeführt als Verzahnung, miteinander in Eingriff bringbar sind.In order to prevent a collision of the switch 3 with the counter element 4 during normal operation of the alignment device 10, as in FIG Figure 2 shown, it can be provided that a pneumatic cylinder 13 fastened to the machine frame 7, possibly an additional Delivery movement of the counter element 4 realized. As a result, the counter element 4 is moved into an area in which the switch 3 can be brought by displacement of the contact element 2 and the profiled surfaces 6 of the switch 3 and counter element, here designed as toothing, can be brought into engagement with one another.

Alternativ zu der zuvor beschriebenen runden Ausführungsform des Schalters 3 kann auch, wie in Fig. 2b dargestellt, der Schalter 3 eine profilierte Oberfläche 6 aufweisen, welche als schneckenförmiges Unrundzahnrad ausgeführt ist. Durch die Bestimmung des Zeitpunkts, zu welchem die Verzahnungen 6 von Schalter 3 und Gegenelement 4 miteinander in Eingriff gebracht werden, kann auf die Schaltstellung des Schalters 3 geschlossen werden.
Zur Erfassung der momentanen Schaltstellung des Schalters 3 kann alternativ ein gestellfester Sensor 15 vorgesehen sein. Der Sensor 15 kann dabei beispielsweise als induktiver oder kapazitiver Näherungssensor ausgeführt sein, welcher eine in die Oberfläche des Schalters 3 eingearbeitete eisenmetallische Komponente erfasst und damit eine Referenzstellung des Drehschalters 3 erkennen kann.As an alternative to the round embodiment of the switch 3 described above, as in FIG Fig. 2b shown, the switch 3 have a profiled surface 6, which is designed as a helical non-circular gear. By determining the point in time at which the toothings 6 of switch 3 and counter element 4 are brought into engagement with one another, the switch position of switch 3 can be inferred.
A sensor 15 fixed to the frame can alternatively be provided to detect the current switching position of the switch 3. The sensor 15 can be designed, for example, as an inductive or capacitive proximity sensor, which detects an iron-metallic component incorporated in the surface of the switch 3 and can thus recognize a reference position of the rotary switch 3.

In Figur 3a ist in einer Draufsicht und in Figur 3b in einer Ansicht dargestellt, wie eine Kollision im Falle eines Fehlverhaltens eines der Antriebe 1 von dem Kontaktelement 2 mit dem Gegenelement 4 verhindert werden kann. Dazu sind Anschläge 12 vorgesehen, welche zwar ein Verfahren des Kontaktelements 2 zur Ausrichtung von Bogen 100 ermöglichen, jedoch einen darüber hinaus gehenden größeren Verfahrbereich blockieren. Diese Anschläge 12 sind jeweils von Aktoren 13 verstellbar, können beispielsweise durch Pneumatikzylinder 13 geschwenkt werden, und geben in ihrer inaktiven Stellung einen größeren Verfahrbereich frei. In diesem größeren Verfahrbereich können dann Schalter 3 und Gegenelement 4 miteinander in Eingriff gebracht werden und es kann - wie obenstehend ausgeführt - eine Verstellung des Schalters 3 durch Relativbewegung von Schalter 3 und Gegenelement 4 erfolgen.In Figure 3a is in a top view and in Figure 3b shown in a view how a collision in the event of a malfunction of one of the drives 1 can be prevented by the contact element 2 with the counter element 4. For this purpose, stops 12 are provided which, although they allow the contact element 2 to be moved to align the sheet 100, block a larger travel range that goes beyond this. These stops 12 are each adjustable by actuators 13, can be pivoted, for example, by pneumatic cylinders 13, and, in their inactive position, open up a larger travel range. In this larger travel range, switch 3 and counter element 4 can then be brought into engagement with one another and, as explained above, switch 3 can be adjusted by relative movement of switch 3 and counter element 4.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Antriebdrive
22
Kontaktelement (Saugplatte)Contact element (suction plate)
33
Schalterswitch
44
Gegenelementcounter-element
55
Freiheitsgradedegrees of freedom
66
profilierte Oberflächeprofiled surface
77
Maschinengestellmachine frame
88th
Saugkanalsuction
99
Saugöffnungsuction opening
1010
Ausrichtvorrichtungalignment
1111
Antriebshebeldrive lever
1212
Anschlagattack
1313
Aktor (Pneumatikzylinder)Actuator (pneumatic cylinder)
1414
UnterdruckeinleitungUnder pressure Introduction
1515
gestellfester Sensorframe-mounted sensor
2020
Anleger mit BogenstapelFeeder with a stack of sheets
3030
Bogen bearbeitende MaschineSheet processing machine
3131
Greifergrab
100100
Bogenarc
aa
Zustellbewegunginfeed
vv
Verstellbewegungadjustment
TT
Transportrichtung / UmfangsrichtungDirection of transport / circumferential direction

Claims (10)

  1. Device (10) for aligning sheet-shaped elements (100) in a plane, the device comprising a changeable contact element (2) movable in at least two degrees of freedom (5) and at least two actuatable drives (1) for moving the contact element (2),
    wherein the changeable contact element (2) has at least one switch (3) with at least two switching positions,
    characterized
    in that the device (10) includes at least one counter-element (4) assigned to a respective switch (3), wherein the at least one switch (3) and the at least one counter-element (4) are engageable (a) with one another in a mechanical engagement to adjust (v) the at least one switch (3).
  2. Device for aligning according to claim 1,
    characterized
    in that the drives (1) are actuatable in such a way that the contact element (2) with the at least one switch (3) is adjustable towards a respective counter-element (4) and, after mechanical engagement, movable relative to the counter-element (4) to adjust (v) the switch (3).
  3. Device for aligning according to any one of the preceding claims,
    characterized
    in that the at least one switch (3) is designed as a rotary switch or a slide switch.
  4. Device for aligning according to any one of the preceding claims,
    characterized
    in that the at least two degrees of freedom (4) comprise movability in a circumferential direction (T) and in a direction perpendicular to the circumferential direction (T) and potentially a rotational movability in the plane.
  5. Device for aligning according to any one of the preceding claims,
    characterized
    in that the at least one switch (3) and a respective counter-element (4) have surfaces (6) with complementary profiles.
  6. Device for aligning according to any one of the preceding claims,
    characterized
    in that the at least one counter-element (4) is fixed to a frame.
  7. Device for aligning according to any one of the preceding claims,
    characterized
    in that the switching positions of the at least one switch (3) transition smoothly into one another.
  8. Device for aligning according to any one of the preceding claims,
    characterized
    in that a respective switching position of the switch (3) is assigned to a specific format of the sheet-shaped elements (100).
  9. Device for aligning according to any one of the preceding claims,
    characterized
    in that the contact element (2) is designed as a suction bar or suction plate and in that an adjustment (v) of the at least one switch (3) effects an adjustment of the suction area (8, 9).
  10. Device for aligning according to claim 9,
    characterized
    in that the at least one switch (3) is designed as a rotary valve and in that the suction bar or suction plate includes a plurality of suction channels (8) terminating in suction openings (9).
EP13193256.8A 2012-12-17 2013-11-18 Adjustment of suction air to match sheet format Active EP2743220B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102012024619.6A DE102012024619A1 (en) 2012-12-17 2012-12-17 Suction air adaptation to sheet format

Publications (3)

Publication Number Publication Date
EP2743220A2 EP2743220A2 (en) 2014-06-18
EP2743220A3 EP2743220A3 (en) 2017-12-27
EP2743220B1 true EP2743220B1 (en) 2020-01-08

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CN (1) CN103863862B (en)
DE (1) DE102012024619A1 (en)

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CN105398846A (en) * 2015-11-27 2016-03-16 天津长荣印刷设备股份有限公司 Paper transfer error-correcting device and working method thereof
CN110672353B (en) * 2019-10-15 2020-11-20 华中科技大学 Micro-contact section collecting device for biological tissue thin section

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US3860233A (en) * 1974-01-17 1975-01-14 Illinois Tool Works Vacuum operated sheet registration mechanism
JP2504794B2 (en) * 1987-12-14 1996-06-05 アキヤマ印刷機製造株式会社 Sheet-fed press registration device
JP3139155B2 (en) * 1992-07-29 2001-02-26 東京エレクトロン株式会社 Vacuum processing equipment
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DE19804120C2 (en) * 1998-02-03 2001-05-31 Roland Man Druckmasch Device for the lateral alignment of arcs in an arc stream
DE69931658T2 (en) * 1998-12-07 2007-05-24 Canon Finetech Inc., Mitsukaido Inkjet image forming apparatus
CN100572233C (en) * 2005-02-01 2009-12-23 海德堡印刷机械股份公司 Be used for handling generation air blowing of machine beat ground or the air-breathing device that page or leaf is opened
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Also Published As

Publication number Publication date
CN103863862B (en) 2017-03-22
EP2743220A3 (en) 2017-12-27
DE102012024619A1 (en) 2014-06-18
CN103863862A (en) 2014-06-18
EP2743220A2 (en) 2014-06-18

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