EP1155997A2 - Device for detecting and controlling the height of a stack - Google Patents
Device for detecting and controlling the height of a stack Download PDFInfo
- Publication number
- EP1155997A2 EP1155997A2 EP01104788A EP01104788A EP1155997A2 EP 1155997 A2 EP1155997 A2 EP 1155997A2 EP 01104788 A EP01104788 A EP 01104788A EP 01104788 A EP01104788 A EP 01104788A EP 1155997 A2 EP1155997 A2 EP 1155997A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- stack
- height
- stack height
- hold
- sensor
- 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.)
- Granted
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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
- B65H31/00—Pile receivers
- B65H31/04—Pile receivers with movable end support arranged to recede as pile accumulates
- B65H31/08—Pile receivers with movable end support arranged to recede as pile accumulates the articles being piled one above another
- B65H31/10—Pile receivers with movable end support arranged to recede as pile accumulates the articles being piled one above another and applied at the top of the pile
-
- 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
- B65H2511/15—Height, e.g. of stack
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2553/00—Sensing or detecting means
- B65H2553/40—Sensing or detecting means using optical, e.g. photographic, elements
- B65H2553/41—Photoelectric detectors
-
- 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 stack height detection for a stack of flat Material, preferably paper sheets, with at least one sensor for detecting the Stack height and a stack height control with such a stack height detection.
- Such a stack height detection is known from DE 197 11 406 C1, wherein it is proposed to arrange a row of one above the other on the edge of a stack To provide sensors which detect the stack height by registering to what extent emitted light is reflected from the stack or not.
- the disadvantage this arrangement is that a material, especially paper, that is not clean lying on or wavy leads to a false display. There will be a ripple or a Bulge in the measurement area is registered as the height of the stack, even if it is in others Areas does not exist or if it still settles after the measurement. In this way, a stack can not be positioned exactly, especially then is disadvantageous if additional material is to be deposited and not exact setting the feed level is not correct.
- the invention is therefore based on the object of stack height detection type mentioned in such a way that an exact detection of the stack height is possible, in particular, to exactly stack the stack for the next storage of material position.
- the object is achieved in that a flat element for Capturing the height of the stack is placed in a support position on the stack and this support position is detected by the at least one sensor.
- the advantage of the invention is that the height of a stack is recorded exactly, regardless of whether ripples or bulging of the material at the measuring point available.
- the recorded height corresponds to the height of the deposited material, which this takes up over the entire area after complete storage.
- a the height of a stack detected in this way gives a much more exact measure, in particular for a height setting that serves to deposit the feed level for another Adjust the material to suit the function.
- the height of the flat element which is a measure of the height of the stack, can be detected in different ways.
- the at least one sensor is an optical sensor. It can are a single sensor, the function of which will be explained later, or it is possible that a row of optical sensors is arranged such that with you can detect several heights of the flat element.
- the flat element can be an element arranged for this purpose, which has a drive and a control that moves the element into the measuring position moved and removed for the storage of another material.
- the flat element is a functional element of a storage device for the flat material. This has the Advantage that the separate arrangement of a flat element as well as drive and control the same can be saved and thereby the stack height detection essential is simplified.
- the functional element is the hold-down of a storage device. Because such a hold-down Has the function of positioning a deposited material on the stack, that he also detects the exact height. In particular, it detects the height of the stack on the Side on which further material is fed and thus also records the height required for the setting of the feed level is decisive.
- An embodiment for the arrangement of a sensor on a hold-down device provides that the storage device is arranged horizontally and at the rear end of the stack vertically movable tongues, drivable and horizontally movable rollers and the least has a horizontally and vertically movable hold-down device, with drives and a controller designed in such a way that a flat material, lying between rollers and tongues, conveyed from the rollers into its storage position is that the blank holder then presses the flat material onto the stack and this Altitude of the hold-down device is detected by the at least one sensor, and that then lifted the rollers and the tongues against the conveying direction from Stacks are removed and then the hold-down device is used to convey another material lifted, pulled out of the storage area and the tongues and rollers be moved back to the position for storing another material. On in this way the height of the stack is recorded after each deposit of a material and can therefore always be set exactly.
- the invention further relates to a stack height control with a stack height detection of the aforementioned type.
- a stack height control are a stack height adjusting device and a controller is provided, with one after each filing Material detects the stack height and by means of the control the stack height adjustment device is caused to set the target height.
- a stack height control can be equipped with a stack height detection of all the aforementioned embodiments his.
- the control for the stack height adjustment is preferably such designed that after the flat element has been placed on the stack, the stack height adjustment device lowers the stack until a sensor that responds in this way responds is arranged so that it reaches the target height of the stack by the corresponding Position of the hold-down device detected.
- Fig. 1 shows a schematic diagram of a stack height control with stack height detection.
- the stack 1 is located on a storage table 24, which can be positioned in height by means of a stack height adjustment device 12.
- a stack height detection 25 is provided, which has a flat element 4, which can be moved to detect the height of the stack 1 in a support position 5, in which it rests on the stack 1 and therefore indicates a measure of the stack height, which can be detected by a sensor 3.
- an adjusting device 20 is provided in order to bring the flat element 4 into the support position 5 or into a rest position 23, an adjusting device 20 is provided.
- the rest position 23 is used so that further material 2 can be applied to the stack 1.
- the measurement of the sensor 3 is transmitted by means of a connection 21 to a controller 13 which, via a further connection 21, issues the setting commands to the stack height adjusting device 12 so that the latter brings the surface of the stack 1 into its desired position, for example into the feed plane.
- rollers 10 serve to transport the flat material 2.
- the rollers 10 are combined with tongues 9, the rollers 10 with its surface with high friction compared to the flat material 2 by rotating the flat material 2 to reach the defined storage position and then brake at the right moment.
- Such a conveying of a material 2 is shown in FIG. 3.
- the rollers 10 cooperate with the tongues 9, which have low friction and are arranged in such a way that the flat material 2 slides on the tongues 9 and is conveyed by the rollers 10 .
- a hold-down device occurs 7 in action by a horizontal and a vertical movement 15 and 14, that he holds the flat material 2 in the storage position by opening it presses stack 1.
- the sensor 3 detects this position 5 of the hold-down 7 directly and outputs a signal to the controller 13 which the stack height controller 12 for Setting the target position of stack 1 causes.
- the stack height adjustment device 12 the Stack 1 moves down until the height difference to the target position - by placing one Materials 2, stack 1 was higher - balanced.
- the sensor is 3 set up in such a way that it only responds to reaching the target position and the Lowering movement of the stack height adjustment device 12 is still seated. This repeats itself after the next material 2 has been placed on the stack 1.
- the rollers 10 lift off by a vertical movement 18 and the tongues 9 are in The direction of the double arrow 17 is withdrawn counter to the conveying direction 11, whereby the rear end of the flat material 2 also in the areas where the Tongues 9 were discarded.
- the tongues 9 by a Vertical movement 16 and a horizontal movement 17 again in the drawn Positioned over the previously deposited material 2 and the tongues 9 and the Rollers 10 lower in such a way that between the tongues 9 and the rollers 10 again a flat material 2 can be conveyed to the storage position.
- the Vertical movement 14 and the horizontal movement 15 of the hold-down 7 serve one Pull back so that a new material 2 can be deposited.
- the area of application is also not limited to a printing press 19, it is possible to use the invention in all technical fields in which flat Material 2 is applied to a stack 1, and in which it is necessary that To determine stack height.
- An essential area of application is, of course, if a feed level for a storage device 6 must be set so the next delivered flat material 2 reaches the stack 1 cleanly.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pile Receivers (AREA)
- Controlling Sheets Or Webs (AREA)
- Delivering By Means Of Belts And Rollers (AREA)
- Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
Abstract
Description
Die Erfindung betrifft eine Stapelhöhenerfassung für einen Stapel aus flächigem Material, vorzugsweise Papierbogen, mit mindestens einem Sensor zur Erfassung der Stapelhöhe sowie eine Stapelhöhensteuerung mit einer derartigen Stapelhöhenerfassung.The invention relates to a stack height detection for a stack of flat Material, preferably paper sheets, with at least one sensor for detecting the Stack height and a stack height control with such a stack height detection.
Aus der DE 197 11 406 C1 ist eine derartige Stapelhöhenerfassung bekannt, wobei vorgeschlagen wird, am Rande eines Stapels eine Zeile von übereinander angeordneten Sensoren vorzusehen, welche die Stapelhöhe dadurch erfassen, daß sie registrieren, inwieweit ausgesendetes Licht vom Stapel reflektiert wird oder nicht. Der Nachteil dieser Anordnung besteht darin, daß ein Material, insbesondere Papier, das nicht sauber aufliegt oder wellig ist zu einer Fehlanzeige führt. Dabei wird eine Welligkeit oder eine Aufwölbung im Meßbereich als Höhe des Stapels registriert, selbst wenn diese in anderen Bereichen nicht vorhanden ist oder wenn diese sich nach der Messung noch ablegt. Auf diese Weise läßt sich ein Stapel nicht exakt positionieren, was insbesondere dann von Nachteil ist, wenn weiteres Material abgelegt werden soll und durch die nicht exakte Einstellung die Zuförderebene nicht stimmt.Such a stack height detection is known from DE 197 11 406 C1, wherein it is proposed to arrange a row of one above the other on the edge of a stack To provide sensors which detect the stack height by registering to what extent emitted light is reflected from the stack or not. The disadvantage this arrangement is that a material, especially paper, that is not clean lying on or wavy leads to a false display. There will be a ripple or a Bulge in the measurement area is registered as the height of the stack, even if it is in others Areas does not exist or if it still settles after the measurement. In this way, a stack can not be positioned exactly, especially then is disadvantageous if additional material is to be deposited and not exact setting the feed level is not correct.
Der Erfindung liegt daher die Aufgabe zugrunde, eine Stapelhöhenerfassung der eingangs genannten Art derart auszubilden, daß eine exakte Erfassung der Stapelhöhe möglich ist, insbesondere, um den Stapel für die nächste Ablage von Material exakt zu positionieren.The invention is therefore based on the object of stack height detection type mentioned in such a way that an exact detection of the stack height is possible, in particular, to exactly stack the stack for the next storage of material position.
Die Aufgabe wird erfindungsgemäß dadurch gelöst, daß ein flächiges Element zur Erfassung der Höhe des Stapels in eine Auflageposition auf dem Stapel verbracht und diese Auflageposition durch den mindestens einen Sensor erfaßt wird. The object is achieved in that a flat element for Capturing the height of the stack is placed in a support position on the stack and this support position is detected by the at least one sensor.
Der Vorteil der Erfindung besteht darin, daß die Höhe eines Stapels exakt erfaßt wird, unabhängig davon, ob an der Meßstelle Welligkeiten oder Aufwölbungen des Materials vorhanden sind. Die erfaßte Höhe entspricht dabei der Höhe des abgelegten Materials, welche dieses nach der vollständigen Ablage auf der ganzen Fläche einnimmt. Eine derart erfaßte Höhe eines Stapels gibt ein wesentlich exakteres Maß, insbesondere für eine Höheneinstellung, die dazu dient, die Zuförderebene für ein weiteres abzulegendes Material funktionsgerecht einzustellen.The advantage of the invention is that the height of a stack is recorded exactly, regardless of whether ripples or bulging of the material at the measuring point available. The recorded height corresponds to the height of the deposited material, which this takes up over the entire area after complete storage. A the height of a stack detected in this way gives a much more exact measure, in particular for a height setting that serves to deposit the feed level for another Adjust the material to suit the function.
Die Höhe des flächigen Elements, welche ein Maß für die Höhe des Stapels darstellt, kann auf verschiedene Weise erfaßt werden. Möglich sind Näherungssensoren, Ultraschallsensoren, Endschalter oder sonstige Sensoren. Als vorteilhafte Ausgestaltung wird vorgeschlagen, daß der mindestens eine Sensor ein optischer Sensor ist. Dabei kann es sich um einen einzigen Sensor handeln, wobei die Funktion später noch erläutert wird, oder es ist möglich, daß eine Zeile von optischen Sensoren derart angeordnet ist, daß mit ihr mehrere Höhenlagen des flächigen Elements erfaßbar sind.The height of the flat element, which is a measure of the height of the stack, can be detected in different ways. Proximity sensors, ultrasonic sensors, Limit switches or other sensors. As an advantageous embodiment proposed that the at least one sensor is an optical sensor. It can are a single sensor, the function of which will be explained later, or it is possible that a row of optical sensors is arranged such that with you can detect several heights of the flat element.
Das flächige Element kann ein zu diesem Meßzweck angeordnetes Element sein, welches über einen Antrieb und eine Steuerung verfügt, die das Element in die Meßposition bewegt und für die Ablage eines weiteren Materials wieder aus dieser entfernt. Als zweckmäßige Ausgestaltung wird jedoch vorgeschlagen, daß das flächige Element ein Funktionselement einer Ablageeinrichtung für das flächige Material ist. Dies hat den Vorteil, daß die separate Anordnung eines flächigen Elements sowie Antrieb und Steuerung desselben eingespart werden kann und dadurch die Stapelhöhenerfassung wesentlich vereinfacht wird. Eine zweckmäßige Weiterbildung sieht vor, daß das Funktionselement der Niederhalter einer Ablageeinrichtung ist. Da ein solcher Niederhalter die Funktion hat, ein abgelegtes Material auf dem Stapel zu positionieren, ist gewährleistet, daß er auch die exakte Höhe erfaßt. Insbesondere erfaßt er die Höhe des Stapels an der Seite, an der weiteres Material zugeführt wird und erfaßt somit auch die Höhe, die für die Einstellung der Zuförderebene maßgeblich ist. The flat element can be an element arranged for this purpose, which has a drive and a control that moves the element into the measuring position moved and removed for the storage of another material. As an expedient embodiment, however, it is proposed that the flat element is a functional element of a storage device for the flat material. This has the Advantage that the separate arrangement of a flat element as well as drive and control the same can be saved and thereby the stack height detection essential is simplified. An expedient development provides that the functional element is the hold-down of a storage device. Because such a hold-down Has the function of positioning a deposited material on the stack, that he also detects the exact height. In particular, it detects the height of the stack on the Side on which further material is fed and thus also records the height required for the setting of the feed level is decisive.
Eine Ausgestaltung für die Anordnung eines Sensors an einem Niederhalter sieht vor, daß die Ablageeinrichtung am hinteren Ende des Stapels angeordnete horizontal und vertikal bewegbare Zungen, antreibbare und horizontal bewegbare Rollen und den mindestens einen horizontal und vertikal bewegbaren Niederhalter aufweist, wobei Antriebe und eine derart ausgebildete Steuerung vorgesehen sind, daß ein flächiges Material, zwischen Rollen und Zungen liegend, von den Rollen in seine Ablageposition gefördert wird, daß dann der Niederhalter das flächige Material auf den Stapel drückt und diese Höhenlage des Niederhalters durch den mindestens einen Sensor erfaßt wird, und daß anschließend die Rollen abgehoben und die Zungen entgegen der Förderrichtung vom Stapel entfernt werden und dann für die Förderung eines weiteren Materials der Niederhalter abgehoben, aus dem Ablagebereich gezogen und die Zungen und die Rollen wieder in die Position für die Ablage eines weiteren Materials befördert werden. Auf diese Weise wird nach jeder Ablage eines Materials die Höhe des Stapels erfaßt und kann daher immer exakt eingestellt werden.An embodiment for the arrangement of a sensor on a hold-down device provides that the storage device is arranged horizontally and at the rear end of the stack vertically movable tongues, drivable and horizontally movable rollers and the least has a horizontally and vertically movable hold-down device, with drives and a controller designed in such a way that a flat material, lying between rollers and tongues, conveyed from the rollers into its storage position is that the blank holder then presses the flat material onto the stack and this Altitude of the hold-down device is detected by the at least one sensor, and that then lifted the rollers and the tongues against the conveying direction from Stacks are removed and then the hold-down device is used to convey another material lifted, pulled out of the storage area and the tongues and rollers be moved back to the position for storing another material. On in this way the height of the stack is recorded after each deposit of a material and can therefore always be set exactly.
Die Erfindung betrifft weiterhin eine Stapelhöhensteuerung mit einer Stapelhöhenerfassung der vorgenannten Art. Bei einer derartigen Stapelhöhensteuerung sind eine Stapelhöhenstelleinrichtung und eine Steuerung vorgesehen, wobei nach jeder Ablage eines Materials die Stapelhöhe erfaßt und mittels der Steuerung die Stapelhöhenstelleinrichtung zur Einstellung der Sollhöhe veranlaßt wird. Eine derartige Stapelhöhensteuerung kann mit einer Stapelhöhenerfassung aller vorgenannten Ausführungsformen ausgestattet sein. Die Steuerung für die Stapelhöheneinstellung wird jedoch vorzugsweise derart ausgestaltet, daß nach der Auflage des flächigen Elements auf dem Stapel die Stapelhöhenstelleinrichtung den Stapel so lange absenkt, bis ein Sensor anspricht, der derart angeordnet ist, daß er das Erreichen der Sollhöhe des Stapels durch die entsprechende Position des Niederhalters erfaßt.The invention further relates to a stack height control with a stack height detection of the aforementioned type. In such a stack height control are a stack height adjusting device and a controller is provided, with one after each filing Material detects the stack height and by means of the control the stack height adjustment device is caused to set the target height. Such a stack height control can be equipped with a stack height detection of all the aforementioned embodiments his. However, the control for the stack height adjustment is preferably such designed that after the flat element has been placed on the stack, the stack height adjustment device lowers the stack until a sensor that responds in this way responds is arranged so that it reaches the target height of the stack by the corresponding Position of the hold-down device detected.
Die Erfindung wird nachfolgend anhand der Zeichnung erläutert. Es zeigen
- Fig. 1
- eine Prinzipskizze einer Stapelhöhensteuerung mit Stapelhöhenerfassung,
- Fig. 2
- eine Stapelhöhensteuerung und -erfassung mit einer Ablageeinrichtung in perspektivischer Ansicht und
- Fig. 3
- in Teil- und Seitenansicht.
- Fig. 1
- a schematic diagram of a stack height control with stack height detection,
- Fig. 2
- a stack height control and detection with a storage device in a perspective view and
- Fig. 3
- in partial and side view.
Fig. 1 zeigt eine Prinzipskizze einer Stapelhöhensteuerung mit Stapelhöhenerfassung.
Der Stapel 1 befindet sich auf einem Ablagetisch 24, welcher mittels einer Stapelhöhenstelleinrichtung
12 in seiner Höhe positioniert werden kann. Zu diesem Zweck ist
eine Stapelhöhenerfassung 25 vorgesehen, welche ein flächiges Element 4 aufweist, das
zur Erfassung der Höhe des Stapels 1 in eine Auflageposition 5 verbracht werden kann,
in der es auf dem Stapel 1 aufliegt und daher ein Maß für die Stapelhöhe angibt, welches
mittels eines Sensors 3 erfaßt werden kann. Um das flächige Element 4 in die Auflageposition
5 beziehungsweise in eine Ruheposition 23 zu verbringen, ist eine Stelleinrichtung
20 vorgesehen. Die Ruheposition 23 dient dazu, daß weiteres Material 2 auf
den Stapel 1 aufgebracht werden kann. Die Messung des Sensors 3 wird mittels einer
Verbindung 21 einer Steuerung 13 übermittelt, welche über eine weitere Verbindung 21
die Stellbefehle an die Stapelhöhenstelleinrichtung 12 gibt, damit diese die Oberfläche
des Stapels 1 in seine Sollposition, beispielsweise in die Zuförderebene, verbringt. Fig. 1 shows a schematic diagram of a stack height control with stack height detection. The
Die Fig. 2 und 3 zeigen die erfindungsgemäße Stapelhöhensteuerung und Stapelhöhenerfassung
25 an einer Ablageeinrichtung 6 (Ausleger) einer Druckmaschine 19.
Bei dieser Ablageeinrichtung 6 dienen Rollen 10 dem Transport des flächigen Materials
2. Die Rollen 10 sind mit Zungen 9 kombiniert, wobei die Rollen 10 mit ihrer
Oberfläche mit hoher Reibung gegenüber dem flächigen Material 2 durch eine Drehung
das flächige Material 2 bis zur Erreichung der definierten Ablageposition fördern und
dann im richtigen Moment abbremsen. Eine derartige Förderung eines Materials 2 zeigt
die Fig. 3. Dabei wirken die Rollen 10 mit den Zungen 9 zusammen, welche eine
geringe Reibung aufweisen und derart angeordnet sind, daß das flächige Material 2 auf
den Zungen 9 gleitet und durch die Rollen 10 gefördert wird. 2 and 3 show the stack height control and
Erreicht dann ein flächiges Material 2 die definierte Ablageposition, so tritt ein Niederhalter
7 durch eine Horizontal- und eine Vertikalbewegung 15 und 14 derart in Aktion,
daß er das in der Ablageposition befindliche flächige Material 2 hält, indem er es auf
den Stapel 1 drückt. Der Sensor 3 erfaßt diese Position 5 des Niederhalters 7 unmittelbar
und gibt ein Signal an die Steuerung 13, welche die Stapelhöhensteuerung 12 zur
Einstellung der Sollage des Stapels 1 veranlaßt.If a
Eine andere Möglichkeit besteht darin, daß die Stapelhöhenstelleinrichtung 12 den
Stapel 1 nach unten fährt, bis die Höhendifferenz zur Sollage - durch Ablage eines
Materials 2 wurde der Stapel 1 höher - ausgeglichen ist. In diesem Fall ist der Sensor 3
derart eingerichtet, daß er erst auf das Erreichen der Sollage anspricht und die
Senkbewegung der Stapelhöhenstelleinrichtung 12 stillsitzt. Dies wiederholt sich,
nachdem das nächste Material 2 auf dem Stapel 1 abgelegt wurde. Damit dies möglich
ist, heben die Rollen 10 durch eine Vertikalbewegung 18 ab und die Zungen 9 werden in
Richtung des Doppelpfeils 17 entgegen der Förderrichtung 11 zurückgezogen, wodurch
sich das hintere Ende des flächigen Materials 2 auch in den Bereichen, in denen die
Zungen 9 waren, ablegt.Another possibility is that the stack
Für die Ablage des nächsten flächigen Materials 2 werden die Zungen 9 durch eine
Vertikalbewegung 16 und eine Horizontalbewegung 17 wieder in die gezeichnete
Position über dem zuvor abgelegten Material 2 positioniert und die Zungen 9 sowie die
Rollen 10 senken sich derart ab, daß zwischen den Zungen 9 und den Rollen 10 wieder
ein flächiges Material 2 bis zur Ablageposition gefördert werden kann. Die
Vertikalbewegung 14 und die Horizontalbewegung 15 des Niederhalters 7 dienen einem
Zurückziehen, damit ein neues Material 2 ablegbar ist. For the storage of the
Diese Ausgestaltungen der Stapelhöhenerfassung 25 und der Stapelhöhensteuerung sind
selbstverständlich nur beispielhaft, es lassen sich alle Arten von flächigen Elementen 4
einsetzen, um die Höhe des Stapels 1 zu ermitteln, beispielsweise könnten auch die
Zungen 9 diese Funktion erfüllen.These configurations of the
Das Einsatzgebiet beschränkt sich auch nicht auf eine Druckmaschine 19, es ist
möglich, die Erfindung bei allen technischen Gebieten einzusetzen, bei denen flächiges
Material 2 auf einen Stapel 1 aufgebracht wird, und bei welcher es erforderlich ist, die
Stapelhöhe zu ermitteln. Ein wesentliches Einsatzgebiet besteht selbstverständlich darin,
wenn eine Zuförderebene für eine Ablageeinrichtung 6 eingestellt werden muß, damit
das nächste angelieferte flächige Material 2 sauber auf den Stapel 1 gelangt. The area of application is also not limited to a
- 11
- Stapelstack
- 22nd
- flächiges Materialflat material
- 33rd
- Sensorsensor
- 44th
- flächiges Elementflat element
- 55
- AuflagepositionSupport position
- 66
- AblageeinrichtungStorage facility
- 77
- NiederhalterHold-down
- 88th
- hinteres Ende des Stapelsrear end of the stack
- 99
- ZungenTongues
- 1010th
- Rollenroll
- 1111
- Pfeil: FörderrichtungArrow: direction of conveyance
- 1212th
- StapelhöhenstelleinrichtungStack height adjustment device
- 1313
- Steuerungcontrol
- 1414
- Doppelpfeil: Vertikalbewegung des NiederhaltersDouble arrow: vertical movement of the hold-down device
- 1515
- Doppelpfeil: Horizontalbewegung des NiederhaltersDouble arrow: horizontal movement of the hold-down device
- 1616
- Doppelpfeil: Vertikalbewegung der ZungenDouble arrow: vertical movement of the tongues
- 1717th
- Doppelpfeil: Horizontalbewegung der ZungenDouble arrow: horizontal movement of the tongues
- 1818th
- Doppelpfeil: Vertikalbewegung der RollenDouble arrow: vertical movement of the rollers
- 1919th
- DruckmaschinePrinting press
- 2020th
- Stelleinrichtung für ein flächiges ElementActuating device for a flat element
- 2121
- Verbindungen links
- 2222
- Stellbewegungen des flächigen ElementsAdjusting movements of the flat element
- 2323
- Ruheposition des flächigen ElementsRest position of the flat element
- 2424th
- AblagetischFiling table
- 2525th
- StapelhöhenerfassungStack height detection
Claims (8)
dadurch gekennzeichnet, daß ein flächiges Element (4) zur Erfassung der Höhe des Stapels (1) in eine Auflageposition (5) auf dem Stapel (1) verbracht und diese Auflageposition (5) durch den mindestens einen Sensor (3) erfaßt wird.Stack height detection (25) for a stack (1) made of flat material (2), preferably paper sheets, with at least one sensor (3) for detecting the stack height,
characterized in that a flat element (4) for detecting the height of the stack (1) is placed in a support position (5) on the stack (1) and this support position (5) is detected by the at least one sensor (3).
dadurch gekennzeichnet, daß der Sensor (3) ein optischer Sensor ist.Stack height detection according to claim 1,
characterized in that the sensor (3) is an optical sensor.
dadurch gekennzeichnet, daß eine Zeile von optischen Sensoren derart angeordnet ist, daß mit ihr mehrere Höhenlagen des flächigen Elements (4) erfaßbar sind.Stack height detection according to claim 1,
characterized in that a row of optical sensors is arranged in such a way that it can detect a plurality of height positions of the flat element (4).
dadurch gekennzeichnet, daß das flächige Element (4) ein Funktionselement einer Ablageeinrichtung (6) für das flächige Material (2) ist.Stack height detection according to one of claims 1 to 3,
characterized in that the flat element (4) is a functional element of a storage device (6) for the flat material (2).
dadurch gekennzeichnet, daß das Funktionselement der Niederhalter (7) der Ablageeinrichtung (6) ist. Stack height detection according to claim 4,
characterized in that the functional element is the hold-down device (7) of the storage device (6).
dadurch gekennzeichnet, daß die Ablageeinrichtung (6) am hinteren Ende (8) des Stapels (1) angeordnete horizontal und vertikal bewegbare Zungen (9), antreibbare und horizontal bewegbare Rollen (10) und den mindestens einen horizontal und vertikal bewegbaren Niederhalter (7) aufweist, wobei Antriebe und eine derart ausgebildete Steuerung vorgesehen sind, daß ein flächiges Material (2), zwischen Rollen (10) und Zungen (9) liegend, von den Rollen (10) in seine Ablageposition gefördert wird, daß dann der Niederhalter (7) das flächige Material (2) auf den Stapel (1) drückt und diese Höhenlage des Niederhalters (7) durch den mindestens einen Sensor (3) erfaßt wird, und daß anschließend die Rollen (10) abgehoben und die Zungen (9) entgegen der Förderrichtung (11) vom Stapel (1) entfernt werden und dann für die Förderung eines weiteren Materials (2) der Niederhalter (7) abgehoben, aus dem Ablagebereich gezogen und die Zungen (9) und die Rollen (10) wieder in die Position für die Ablage eines weiteren Materials (2) befördert werden.Stack height detection according to claim 5,
characterized in that the storage device (6) at the rear end (8) of the stack (1) arranged horizontally and vertically movable tongues (9), drivable and horizontally movable rollers (10) and the at least one horizontally and vertically movable hold-down device (7) The drive (10) is conveyed into its storage position by the rollers (10), so that the hold-down device (7 ) presses the flat material (2) on the stack (1) and this height of the hold-down device (7) is detected by the at least one sensor (3), and that the rollers (10) are then lifted off and the tongues (9) counter to the Conveying direction (11) are removed from the stack (1) and then for the conveying of another material (2) the hold-down device (7) is lifted out of the storage area and the tongues (9) and the rollers (10) are returned to the position for the Storage of another material (2) to be transported.
dadurch gekennzeichnet, daß eine Stapelhöhenstelleinrichtung (12) und eine Steuerung (13) vorgesehen sind, wobei nach jeder Ablage eines Materials (2) die Stapelhöhe erfaßt und mittels der Steuerung (13) die Stapelhöhenstelleinrichtung (12) zur Einstellung der Sollhöhe veranlaßt wird.Stack height control with a stack height detection (25) according to one of claims 1 to 6,
characterized in that a stack height adjusting device (12) and a control (13) are provided, the stack height being detected after each depositing of a material (2) and the stack height adjusting device (12) being caused to set the desired height by means of the control (13).
dadurch gekennzeichnet, daß nach der Auflage des flächigen Elements (4) auf dem Stapel (1) die Stapelhöhenstelleinrichtung (12) den Stapel (1) so lange absenkt, bis ein Sensor (3) anspricht, der derart angeordnet ist, daß er das Erreichen der Sollhöhe des Stapels (1) durch die entsprechende Position des Niederhalters (7) erfaßt.Stack height control according to claim 7,
characterized in that after the flat element (4) has been placed on the stack (1), the stack height adjusting device (12) lowers the stack (1) until a sensor (3) responds, which is arranged such that it reaches it the desired height of the stack (1) by the corresponding position of the hold-down device (7).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10023807A DE10023807A1 (en) | 2000-05-15 | 2000-05-15 | Stack height detection and stack height control |
| DE10023807 | 2000-05-15 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1155997A2 true EP1155997A2 (en) | 2001-11-21 |
| EP1155997A3 EP1155997A3 (en) | 2004-01-07 |
| EP1155997B1 EP1155997B1 (en) | 2006-06-28 |
Family
ID=7642151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP01104788A Expired - Lifetime EP1155997B1 (en) | 2000-05-15 | 2001-02-27 | Device for detecting and controlling the height of a stack |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US6592119B2 (en) |
| EP (1) | EP1155997B1 (en) |
| JP (1) | JP2002029655A (en) |
| AT (1) | ATE331684T1 (en) |
| DE (2) | DE10023807A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1840060A3 (en) * | 2006-04-01 | 2009-06-17 | manroland AG | Sensor device for a stack |
| CN104876048A (en) * | 2014-02-28 | 2015-09-02 | 京瓷办公信息系统株式会社 | Sheet discharge device and image forming apparatus including the same |
| CN110155786A (en) * | 2019-06-18 | 2019-08-23 | 四川卡库机器人科技有限公司 | A kind of slow drop receiving mechanism and method for sheet material |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1348661B1 (en) * | 2002-03-29 | 2006-12-06 | Océ-Technologies B.V. | Position detector |
| JP2003307402A (en) * | 2002-03-29 | 2003-10-31 | Oce Technologies Bv | Position detector |
| US7028580B2 (en) * | 2002-12-17 | 2006-04-18 | Xerox Corporation | Rotational cable shortening device |
| JP4174442B2 (en) * | 2004-03-15 | 2008-10-29 | 富士通株式会社 | Paper sheet bundle height detection method and paper sheet handling apparatus |
| US7159863B2 (en) * | 2004-08-25 | 2007-01-09 | Lexmark International, Inc. | Compliant media stack height limiter |
| US7374163B2 (en) * | 2004-10-21 | 2008-05-20 | Lexmark International, Inc. | Media tray stack height sensor with continuous height feedback and discrete intermediate and limit states |
| DE102005038993B4 (en) * | 2005-08-16 | 2008-08-28 | Eastman Kodak Company | Device for depositing sheets |
| US7549626B2 (en) * | 2005-09-08 | 2009-06-23 | Lexmark International, Inc. | Media timing based on stack height for use within an image forming device |
| DE102005042860B4 (en) * | 2005-09-08 | 2009-01-08 | Eastman Kodak Co. | Device for determining a level of a surface of a sheet pile |
| US20070246880A1 (en) * | 2006-04-19 | 2007-10-25 | Kenji Totsuka | Methods For Moving A Media Sheet Within An Image Forming Device |
| US20070248365A1 (en) * | 2006-04-19 | 2007-10-25 | Lexmark International, Inc. | Methods for moving a media sheet within an image forming device |
| US20070248366A1 (en) * | 2006-04-19 | 2007-10-25 | Lexmark International, Inc. | Devices for moving a media sheet within an image forming apparatus |
| JP4523572B2 (en) * | 2006-07-10 | 2010-08-11 | シャープ株式会社 | Output stacker |
| US7954818B2 (en) * | 2006-12-28 | 2011-06-07 | Canon Kabushiki Kaisha | Sheet stacking apparatus and image forming apparatus |
| US7699305B2 (en) * | 2007-03-29 | 2010-04-20 | Lexmark International, Inc. | Smart pick control algorithm for an image forming device |
| SE537530C2 (en) * | 2013-04-26 | 2015-06-02 | Plockmatic Int Ab | Booklet making machine with thickness sensor |
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|---|---|---|---|---|
| US3722879A (en) * | 1972-03-06 | 1973-03-27 | Ibm | Control apparatus for document stackers |
| DE4101436C2 (en) * | 1989-12-15 | 1994-02-24 | Kodak Ag | Device for depositing sheets |
| DE69205780T2 (en) * | 1991-08-28 | 1996-07-11 | Mita Industrial Co Ltd | Sheet feeder. |
| DE4410384C1 (en) * | 1994-03-25 | 1995-05-24 | Roland Man Druckmasch | Control for stack lift device |
| US5518230A (en) * | 1994-10-31 | 1996-05-21 | Xerox Corporation | Stack height sensing machanism |
| US5839015A (en) * | 1996-03-28 | 1998-11-17 | Xerox Corporation | Paper height measure apparatus for a media tray with linear sensor |
| DE19711406C1 (en) * | 1997-03-19 | 1998-10-01 | Jagenberg Papiertech Gmbh | Method and device for stacking sheets, in particular sheets of paper or cardboard that are fed in flakes on pallets |
| JPH11292307A (en) * | 1998-04-08 | 1999-10-26 | Riso Kagaku Corp | Paper feed table controller |
| US6165113A (en) * | 1999-02-04 | 2000-12-26 | Pentax Technologies Corporation | Method and mechanism for sensing the position of the top of a stack of paper |
| US6279899B1 (en) * | 1999-09-03 | 2001-08-28 | Lexmark International, Inc. | Substrate sensing mechanism for use in a printer output bin |
-
2000
- 2000-05-15 DE DE10023807A patent/DE10023807A1/en not_active Withdrawn
-
2001
- 2001-02-27 EP EP01104788A patent/EP1155997B1/en not_active Expired - Lifetime
- 2001-02-27 AT AT01104788T patent/ATE331684T1/en not_active IP Right Cessation
- 2001-02-27 DE DE50110309T patent/DE50110309D1/en not_active Expired - Lifetime
- 2001-05-07 US US09/850,462 patent/US6592119B2/en not_active Expired - Lifetime
- 2001-05-15 JP JP2001145347A patent/JP2002029655A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1840060A3 (en) * | 2006-04-01 | 2009-06-17 | manroland AG | Sensor device for a stack |
| CN104876048A (en) * | 2014-02-28 | 2015-09-02 | 京瓷办公信息系统株式会社 | Sheet discharge device and image forming apparatus including the same |
| CN104876048B (en) * | 2014-02-28 | 2017-04-12 | 京瓷办公信息系统株式会社 | Sheet discharge device and image forming apparatus including the same |
| CN110155786A (en) * | 2019-06-18 | 2019-08-23 | 四川卡库机器人科技有限公司 | A kind of slow drop receiving mechanism and method for sheet material |
Also Published As
| Publication number | Publication date |
|---|---|
| DE10023807A1 (en) | 2001-11-22 |
| JP2002029655A (en) | 2002-01-29 |
| ATE331684T1 (en) | 2006-07-15 |
| EP1155997B1 (en) | 2006-06-28 |
| US20010054791A1 (en) | 2001-12-27 |
| DE50110309D1 (en) | 2006-08-10 |
| US6592119B2 (en) | 2003-07-15 |
| EP1155997A3 (en) | 2004-01-07 |
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