EP1155997B1 - 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
- EP1155997B1 EP1155997B1 EP01104788A EP01104788A EP1155997B1 EP 1155997 B1 EP1155997 B1 EP 1155997B1 EP 01104788 A EP01104788 A EP 01104788A EP 01104788 A EP01104788 A EP 01104788A EP 1155997 B1 EP1155997 B1 EP 1155997B1
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- EP
- European Patent Office
- Prior art keywords
- stack
- height
- sensor
- tongues
- holding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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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
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- 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 sheet material, preferably paper sheet, with at least one sensor for detecting the stack height, a hold down a storage device for detecting the height of the stack spent in a support position on the stack and this support position by the at least one sensor is detected, and a stack height control with such a stack height detection.
- DE 1 812 018 A discloses a conveyor on a stacker with guide elements and rollers.
- the invention has the object of providing a stack height detection of the type mentioned in such a way that an exact detection of the stack height is possible and the stack for the next storage of material is exactly positioned.
- the advantage of the invention is that the height of a stack is detected exactly, regardless of whether ripples or bulges of the material are present at the measuring point.
- the detected height corresponds to the height of the deposited material, which occupies this after complete storage on the entire surface.
- Such a height of a stack detected gives a much more accurate measure, in particular for a height adjustment, which serves to adjust the feed level for another material to be deposited functionally.
- the height of the sheet element which is a measure of the height of the stack, can be detected in various ways. Proximity sensors, ultrasonic sensors, limit switches or other sensors are possible. As an advantageous embodiment, it is proposed that the at least one sensor is an optical sensor. It may be a single sensor, wherein the function will be explained later, or it is possible that a row of optical sensors is arranged such that with her several altitudes of the sheet-like element can be detected.
- the functional element of the hold-down device is a storage device. Since such a hold-down has the function of positioning a stored material on the stack, it is ensured that it also detects the exact height. In particular, it detects the height of the stack on the side at which further material is supplied and thus also detects the height that is decisive for the adjustment of the feeder level.
- the embodiment of the invention provides that the storage device arranged at the rear end of the stack horizontally and vertically movable Tongues, drivable and horizontally movable rollers and having at least one horizontally and vertically movable hold-down device, wherein drives and a control designed in such a way that a flat material lying between rollers and tongues, is supported by the rollers in its storage position, that then the hold-down presses the flat material onto the stack and this height position of the hold-down is detected by the at least one sensor, and then the rolls are lifted off and the tongues are removed from the stack in the opposite direction to the conveying direction and then lifted off to convey a further material of the hold-downs, pulled out of the storage area and the tongues and rollers are moved back to the position for the storage of another material.
- the height of the stack is detected and therefore can 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 a stack height adjustment device and a controller are provided, wherein the stack height detected after each storage of a material and the stack height adjustment means for setting the desired height is caused by the controller.
- Such a stack height control can be equipped with a stack height detection of all the aforementioned embodiments.
- the stack height adjustment control is preferably configured such that after stacking the sheet on the stack, the stack height adjuster lowers the stack until a sensor is located that is configured to achieve the desired height of the stack by the corresponding stack Position of the hold down 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 by means of a stack height adjusting device 12 in its height.
- a stack height detection 25 is provided, which has a planar element 4, which can be spent 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 spend the sheet-like element 4 in the support position 5 or in a rest position 23, an adjusting device 20 is provided.
- the rest position 23 serves to 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 sends the setting commands to the stack height adjusting device 12 via a further connection 21, so that it spends the surface of the stack 1 into its desired position, for example into the feed plane.
- FIGS. 2 and 3 show the stack height control and stack height detection 25 according to the invention on a depositing device 6 (delivery) of a printing machine 19.
- rollers 10 serve to transport the flat material 2.
- the rollers 10 are combined with tongues 9, wherein the rollers 10 promote with its surface with high friction against the sheet material 2 by a rotation of the sheet material 2 to reach the defined storage position and then decelerate at the right moment.
- the rollers 10 cooperate with the tongues 9, which a have low friction and are arranged such that the sheet material 2 slides on the tongues 9 and is conveyed by the rollers 10.
- the defined storage position so enters a hold-7 by a horizontal and vertical movement 15 and 14 in action so that he holds the sheet material located in the storage position 2 by pressing it on the stack 1.
- the sensor 3 detects this position 5 of the blank holder 7 directly and outputs a signal to the controller 13, which causes the stack height control 12 to set the desired position of the stack 1.
- the stack height adjusting device 12 moves the stack 1 down until the height difference to the desired position - by depositing a material 2, the stack 1 was higher - is balanced.
- the sensor 3 is set up so that it only responds to the reaching of the desired position and stops the e lowering movement of the stack height adjusting device 12. This is repeated after the next material 2 has been deposited on the stack 1.
- the rollers 10 lift off by a vertical movement 18 and the tongues 9 are retracted in the direction of the double arrow 17 against the conveying direction 11, whereby the rear end of the sheet material 2 in the areas in which the tongues were 9 drops.
- the tongues 9 are positioned by a vertical movement 16 and a horizontal movement 17 again in the position shown above the previously deposited material 2 and the tongues 9 and the rollers 10 are lowered from such that between the tongues. 9 and the rollers 10 again a sheet material 2 can be promoted to the storage position.
- the vertical movement 14 and the horizontal movement 15 of the blank holder 7 serve a retraction, so that a new material 2 can be stored.
- stack height detection 25 and the stack height control are of course only exemplary, it can be used all types of sheet-like elements 4 to determine the height of the stack 1, for example, the tongues 9 could fulfill this function.
- the field of use is not limited to a printing press 19, it is possible to use the invention in all technical fields in which sheet material 2 is applied to a stack 1, and in which it is necessary to determine the stack height.
- An essential field of application is of course when a Zuschebene must be set for a storage device 6, so that the next delivered flat material 2 gets clean on the stack 1.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pile Receivers (AREA)
- Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
- Controlling Sheets Or Webs (AREA)
- Delivering By Means Of Belts And Rollers (AREA)
Abstract
Description
Die Erfindung betrifft eine Stapelhöhenerfassung für einen Stapel aus flächigem Material, vorzugsweise Papierbogen, mit mindestens einem Sensor zur Erfassung der Stapelhöhe, wobei ein Niederhalter einer Ablageeinrichtung zur Erfassung der Höhe des Stapels in eine Auflageposition auf dem Stapel verbracht und diese Auflageposition durch den mindestens einen Sensor erfasst wird, sowie eine Stapelhöhensteuerung mit einer derartigen Stapelhöhenerfassung.The invention relates to a stack height detection for a stack of sheet material, preferably paper sheet, with at least one sensor for detecting the stack height, a hold down a storage device for detecting the height of the stack spent in a support position on the stack and this support position by the at least one sensor is detected, and a stack height control with such a stack height detection.
Einrichtungen der vorgenannten Gattungen sind aus der DE 2 310 639 A bekannt.Devices of the aforementioned types are known from
Aus der DE 197 11 406 C1 ist zudem 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.From DE 197 11 406 C1, such a stack height detection is also known, it being proposed to provide at the edge of a stack a row of sensors arranged one above the other, which detect the stack height by registering to what extent emitted light from the stack is reflected or not. The disadvantage of this arrangement is that a material, especially paper that does not clean rests or wavy leads to a false report. In this case, a ripple or a bulge in the measuring range is registered as the height of the stack, even if it is not present in other areas or if it still stores after the measurement. In this way, a stack can not be positioned exactly, which is particularly disadvantageous when additional material is to be stored and the Zuförderebene is not true due to the inaccurate setting.
Des weiteren ist aus der EP 0 949 170 A eine Stapelhöhenerfassung mit mindestens einem Sensor zur Erfassung einer Stapelhöhe bekannt. Die DE 1 812 018 A offenbart eine Fördereinrichtung an einem Stapler mit Leitelementen und -rollen.Furthermore, from EP 0 949 170 A, a stack height detection with at least one sensor for detecting a stack height is known.
Der Erfindung liegt die Aufgabe zugrunde, eine Stapelhöhenerfassung der eingangs genannten Art derart auszubilden, dass eine exakte Erfassung der Stapelhöhe möglich ist und der Stapel für die nächste Ablage von Material exakt positioniert wird.The invention has the object of providing a stack height detection of the type mentioned in such a way that an exact detection of the stack height is possible and the stack for the next storage of material is exactly positioned.
Die Aufgabe wird erfindungsgemäß durch die Merkmale des Anspruchs 1 gelöst.The object is achieved by the features of
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 detected exactly, regardless of whether ripples or bulges of the material are present at the measuring point. The detected height corresponds to the height of the deposited material, which occupies this after complete storage on the entire surface. Such a height of a stack detected gives a much more accurate measure, in particular for a height adjustment, which serves to adjust the feed level for another material to be deposited functionally.
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 sheet element, which is a measure of the height of the stack, can be detected in various ways. Proximity sensors, ultrasonic sensors, limit switches or other sensors are possible. As an advantageous embodiment, it is proposed that the at least one sensor is an optical sensor. It may be a single sensor, wherein the function will be explained later, or it is possible that a row of optical sensors is arranged such that with her several altitudes of the sheet-like element can be detected.
Die separate Anordnung eines zusätzlichen Elements sowie Antrieb und Steuerung desselben werden dadurch eingespart und dadurch die Stapelhöhenerfassung wesentlich vereinfacht, 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 separate arrangement of an additional element and the drive and control of the same are thereby saved, thereby significantly simplifying the stack height detection, that the functional element of the hold-down device is a storage device. Since such a hold-down has the function of positioning a stored material on the stack, it is ensured that it also detects the exact height. In particular, it detects the height of the stack on the side at which further material is supplied and thus also detects the height that is decisive for the adjustment of the feeder level.
Die erfindungsgemäße Ausgestaltung sieht dazu 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.The embodiment of the invention provides that the storage device arranged at the rear end of the stack horizontally and vertically movable Tongues, drivable and horizontally movable rollers and having at least one horizontally and vertically movable hold-down device, wherein drives and a control designed in such a way that a flat material lying between rollers and tongues, is supported by the rollers in its storage position, that then the hold-down presses the flat material onto the stack and this height position of the hold-down is detected by the at least one sensor, and then the rolls are lifted off and the tongues are removed from the stack in the opposite direction to the conveying direction and then lifted off to convey a further material of the hold-downs, pulled out of the storage area and the tongues and rollers are moved back to the position for the storage of another material. In this way, after each filing of a material, the height of the stack is detected and therefore can 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, a stack height adjustment device and a controller are provided, wherein the stack height detected after each storage of a material and the stack height adjustment means for setting the desired height is caused by the controller. Such a stack height control can be equipped with a stack height detection of all the aforementioned embodiments. However, the stack height adjustment control is preferably configured such that after stacking the sheet on the stack, the stack height adjuster lowers the stack until a sensor is located that is configured to achieve the desired height of the stack by the corresponding stack Position of the hold down 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 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. FIGS. 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.Then reaches 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 e Senkbewegung der Stapelhöhenstelleinrichtung 12 stillstzt. 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 embodiments 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 field of use is not limited to a
- 11
- Stapelstack
- 22
- flächiges Materialflat material
- 33
- Sensorsensor
- 44
- flächiges Elementflat element
- 55
- Auflagepositionsupport position
- 66
- AblageeinrichtungBin Setup
- 77
- NiederhalterStripper plate
- 88th
- hinteres Ende des Stapelsrear end of the pile
- 99
- Zungentongues
- 1010
- Rollenroll
- 1111
- Pfeil: FörderrichtungArrow: conveying direction
- 1212
- StapelhöhenstelleinrichtungStack height adjustment device
- 1313
- Steuerungcontrol
- 1414
- Doppelpfeil: Vertikalbewegung des NiederhaltersDouble arrow: Vertical movement of the hold-down
- 1515
- Doppelpfeil: Horizontalbewegung des NiederhaltersDouble arrow: Horizontal movement of the hold-down
- 1616
- Doppelpfeil: Vertikalbewegung der ZungenDouble arrow: vertical movement of the tongues
- 1717
- Doppelpfeil: Horizontalbewegung der ZungenDouble arrow: horizontal movement of the tongues
- 1818
- Doppelpfeil: Vertikalbewegung der RollenDouble arrow: Vertical movement of the rollers
- 1919
- Druckmaschinepress
- 2020
- Stelleinrichtung für ein flächiges ElementSetting device for a flat element
- 2121
- Verbindungenlinks
- 2222
- Stellbewegungen des flächigen ElementsActuating movements of the planar element
- 2323
- Ruheposition des flächigen ElementsRest position of the planar element
- 2424
- Ablagetischtray table
- 2525
- StapelhöhenerfassungStack height detection
Claims (5)
- Stack-height detector (25) and stacking device (6) for a stack (1) of sheet material (2), preferably sheets of paper, comprising at least one sensor (3) for the detection of the height of the stack, with a holding-down element (7) of a stacking device (6) being moved into a rest position on the stack for the detection of the height of the stack (1) and said rest position (5) being detected by at least one sensor (3),
characterized in that
the stacking device (6) comprises horizontally and vertically movable tongues (9), which are located at the rear end (8) of the stack (1), drivable and horizontally movable rolls (10), and the minimum of one horizontally and vertically movable holding-down element (7), with drives and an appropriately configured control means being provided, such that a sheet material (2) situated between rolls (10) and tongues (9) is transported by the rolls (10) into said sheet material's stacking position, that the holding-down element (7) then presses the sheet material (2) onto the stack (1) and that this height position of the holding-down element (7) is detected by the at least one sensor (3), and that, subsequently, the rolls (10) are lifted and the tongues (9) are removed from the stack (1) in counter-transport direction (11) and that, for the transport of another material (2), the holding-down elements (7) is lifted and pulled out of the stacking region, and the tongues (9) and the rolls (10) are then again transported into the position for depositing another material (2). - Stack-height detector and stacking device (6) as in Claim 1,
characterized in that
the sensor (3) is an optical sensor. - Stack-height detector and stacking device (6) as in Claim 1,
characterized in that
a line of optical sensors is arranged in such a manner that it can be used for the detection of several height positions of the sheet element (4). - Stack-height control means comprising a stack-height detector (25) and a stacking device (6) as in one of Claims 1 through 3,
characterized in that
a stack-height adjustment device (12) and a control means (13) are provided such that, each time a material (2) has been deposited, the height of the stack is detected and, by means of the control means (13), the stack-height adjustment device (12) is caused to adjust to the set height. - Stack-height control means as in Claim 4,
characterized in that,
after the sheet element (4) has been placed on the stack (1), the stack-height adjustment device (12) lowers the stack (1) until a sensor (3) responds, said sensor being arranged in such a manner that it detects, by way of the corresponding position of the holding-down element (7), when the set height of the stack (1) has been reached.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10023807 | 2000-05-15 | ||
| DE10023807A DE10023807A1 (en) | 2000-05-15 | 2000-05-15 | Stack height detection and stack height control |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1155997A2 EP1155997A2 (en) | 2001-11-21 |
| EP1155997A3 EP1155997A3 (en) | 2004-01-07 |
| EP1155997B1 true 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) |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003307402A (en) * | 2002-03-29 | 2003-10-31 | Oce Technologies Bv | Position detector |
| EP1348661B1 (en) * | 2002-03-29 | 2006-12-06 | Océ-Technologies B.V. | 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 |
| DE102005042860B4 (en) * | 2005-09-08 | 2009-01-08 | Eastman Kodak Co. | Device for determining a level of a surface of a sheet pile |
| US7549626B2 (en) * | 2005-09-08 | 2009-06-23 | Lexmark International, Inc. | Media timing based on stack height for use within an image forming device |
| DE102006015190A1 (en) * | 2006-04-01 | 2007-10-04 | Man Roland Druckmaschinen Ag | Sensing device for a stack |
| US20070246880A1 (en) * | 2006-04-19 | 2007-10-25 | Kenji Totsuka | 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 |
| US20070248365A1 (en) * | 2006-04-19 | 2007-10-25 | Lexmark International, Inc. | Methods for moving a media sheet within an image forming device |
| 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 |
| JP6116500B2 (en) * | 2014-02-28 | 2017-04-19 | 京セラドキュメントソリューションズ株式会社 | Sheet discharging device, image forming device |
| 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 |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 supply base control device |
| 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 AT AT01104788T patent/ATE331684T1/en not_active IP Right Cessation
- 2001-02-27 DE DE50110309T patent/DE50110309D1/en not_active Expired - Lifetime
- 2001-02-27 EP EP01104788A patent/EP1155997B1/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
Also Published As
| Publication number | Publication date |
|---|---|
| JP2002029655A (en) | 2002-01-29 |
| DE50110309D1 (en) | 2006-08-10 |
| US20010054791A1 (en) | 2001-12-27 |
| EP1155997A3 (en) | 2004-01-07 |
| US6592119B2 (en) | 2003-07-15 |
| ATE331684T1 (en) | 2006-07-15 |
| EP1155997A2 (en) | 2001-11-21 |
| DE10023807A1 (en) | 2001-11-22 |
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