EP2361861A1 - Method and device for feeding individual stacks of sheets from a printer into an adhesive band machine - Google Patents
Method and device for feeding individual stacks of sheets from a printer into an adhesive band machine Download PDFInfo
- Publication number
- EP2361861A1 EP2361861A1 EP10001660A EP10001660A EP2361861A1 EP 2361861 A1 EP2361861 A1 EP 2361861A1 EP 10001660 A EP10001660 A EP 10001660A EP 10001660 A EP10001660 A EP 10001660A EP 2361861 A1 EP2361861 A1 EP 2361861A1
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- European Patent Office
- Prior art keywords
- stack
- sheet
- sheet stack
- stacks
- gripper
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- 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.)
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Classifications
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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
- B65H3/00—Separating articles from piles
- B65H3/40—Separating articles from piles by two or more separators acting alternately on the same 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
- B65H5/00—Feeding articles separated from piles; Feeding articles to machines
- B65H5/006—Feeding stacks of articles to machines
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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
- B65H5/00—Feeding articles separated from piles; Feeding articles to machines
- B65H5/08—Feeding articles separated from piles; Feeding articles to machines by grippers, e.g. suction grippers
- B65H5/10—Reciprocating or oscillating grippers, e.g. suction or gripper tables
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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
- B65H2701/00—Handled material; Storage means
- B65H2701/10—Handled articles or webs
- B65H2701/18—Form of handled article or web
- B65H2701/182—Piled package
- B65H2701/1826—Arrangement of sheets
- B65H2701/18265—Ordered set of batches of articles
- B65H2701/18266—Ordered set of batches of articles wherein the batches are offset from each other, e.g. stepped 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
- B65H2801/00—Application field
- B65H2801/48—Bookbinding
Definitions
- the invention relates to a method and a device for automatically feeding individual loose stacks of sheets from a printing machine into an adhesive binding machine, wherein the stacks of sheets from the printing press are staggered on a stack
- the present invention is therefore based on the object to provide a method and an apparatus with which originating from a printing press stack of sheets, which are staggered on a pile stacked on each other, automatically a perfect binding machine can be fed individually for binding.
- the top sheet stack is arranged at a defined height and close to a horizontal conveyor. This can be done in such a way that the stack is arranged on the front side or also laterally of the transport device, which is usually designed in the form of a conveyor belt. It is advantageous to arrange the stack with the sheet stacks thereon on the end face of the transport device so as to facilitate the feed in the transport direction. In order to arrange the upper stack of sheets defined, the entire stack with the loose sheet stacks thereon in height and, if necessary, can also be positioned laterally so that the simplest possible transfer of the upper stack of sheets to the transport device is possible.
- the upper and lower stacks are gripped on the protrusion projecting from the stack by the offset by means of a first and second ply gripper to grip the following feature C in partially peeling off the upper sheet pile Sheet stack of the stack by means of the upper sheet stack holding sheet gripper to prevent slipping of the sheet stack located under the upper sheet stack.
- a peel-off gripper which preferably securely grips the sheet stack in two places and pulls down the stack of sheets from the stack and according to feature E the stack of sheets on the horizontal transport means with a defined distance to the leaves the previous stack of sheets.
- the peel-off gripper transports the stack of sheets at the same speed of the conveyor. This ensures that the loose stack of sheets does not slip when placed on the transport device.
- the peel-off gripper is ready to take over another stack of sheets already partially pulled down from the stack and is moved back towards the stack. At the same time lying on the conveyor belt stack of sheets are fed to the perfect binding machine.
- the next stack of sheets which is now the upper sheet stack, is again positioned at a defined height and near the transport device.
- the process proceeds in the same way, with the difference that the offset of the now upper stack of sheets to the now next lower sheet stack is 180 degrees from the previous cycle. This applies both to the offset in a plane direction and in two plane directions (x, y).
- the next stack of sheets underneath is gripped by means of the free layer gripper according to feature B so that both sets of sheets are held laterally before being pulled off. Subsequently, the features C to F are repeated.
- the free bearing gripper now moves down when gripping back to grasp the now second upper layer.
- the sheet gripper which still grips the upper sheet stack, is moved upwards with the stack for positioning the stack in a defined height. This improves the speed of destacking.
- the intervention in the intermediate space can take place by means of a thin lift or similar suitable means in conjunction with a correspondingly formed gripping device.
- the upper sheet stack can be gripped and at least partially withdrawn from the stack with the gripping device becoming active in this case.
- the offset of the individual stacked loose stack of sheets usually takes place only in one direction, so that the supernatants of the stacks of sheets are always arranged at 180 degrees to each other.
- the trigger may be made either transversely or longitudinally to the offset.
- the stacks of sheets will have a simple offset, ie, in only one planar direction.
- the stack with the individual sheet stacks has a defined contact edge in the direction of the horizontal transport device.
- the stacks of sheets are drawn off from one another transversely to the offset of the stacks of sheets.
- the defined contact edge and the trigger transverse to the offset also slightly in the direction opposite to the contact edge direction variable formats.
- the method thus running thus enables the desired continuous operation at high cycle speed and without slippage of the individual sheets of a sheet stack.
- the sheet stacks are placed on the transport direction of variable bands of the horizontal transport device, which serve as memory to achieve a same Anreihungsabstandes the sheet stack.
- a delay occurs, which can occur, for example, when either a new stack of loose sheet stacks introduced and the stacking process is therefore interrupted, or if according to a further advantageous embodiment of the stack is filled from below.
- This process can also lead to a brief interruption of the stacking process, because the top sheet stack must be accurately positioned again.
- this interruption can be absorbed, so that the sheet stack is fed continuously to the perfect binder.
- the upper sheet stack is positioned with the lower edge at the level of the transport device or with an offset to the height of the transport device of a maximum of +0.5 mm in order to minimize the height difference.
- the stack is already positioned for the next top sheet stack as soon as the previous stack of sheets has been pulled from the stack.
- the features A to C with the subsequent sheet stacks are advantageously executed simultaneously with feature F for the preceding sheet stack. The means that a gripping of the sheet stacks is already performed when the previous sheet stack is still fed to the transport device.
- the thickness of the sheet stacks and / or the gap between the sheet stacks and the sheet stacking edges of the two upper sheet stacks are detected in the region of the offset in order to control the exact positions for the depression and / or engagement in the gap ,
- the holding down and the gripping takes place pneumatically and the devices required for this purpose are actuated by means of servomotors in the horizontal and vertical directions.
- the device according to the invention for automatically feeding individual loose stacks of sheets from a printing machine into an adhesive binding machine has a vertically movable stack carrier on the front side of a horizontal transport device for receiving a stack of individual loose stacks of sheets, Detecting means for detecting the edges of the two upper stack of sheets in the region of the offset, Detecting means for detecting the thickness or the gap between the stacks of sheets, Detecting means for positioning the upper sheet stack in a defined position to the front side of the transport device, right and left hold-down in the region of the edge opposite the projection of the respective sheet stack, horizontally and vertically movable right and left gripping means for gripping the two upper sheet stacks on the projection and moving the sheet stack in the direction of transport means, and a pull-off gripper movable in parallel with the transport device for gripping the stack of sheets separating from the stack by means of the gripping device and depositing the stack of sheets on the transport device on.
- FIGS. 1 to 11 The various steps in the stacking of individual stacks of sheets shown after they were provided in a stack of the printing press.
- the figures show a perspective view schematically a stack with staggered sheet stacks and a horizontal transport device in the respective, explained in more detail flow positions. Further features of the invention will become apparent from the following description of the embodiment of the invention in conjunction with the claims and the accompanying drawings.
- the individual features of the invention may be implemented on their own or in several different embodiments of the invention.
- FIGS. 1 to 11 show a stacking device 1 with a stack 3 of mutually offset sheet stacks 4 on a stack lifter 2.
- the sheet stacks 4 are arranged offset to one another, so that they in the direction of a conveyor belt 5 a common Have stop edge and the offset is given in this embodiment, only in a planar direction. In principle, it is also possible that an offset in two planar directions can be processed according to the same principle.
- the deduction of the respective upper sheet stack 4 is transverse to the offset of the individual sheets stack 4 to each other.
- the stack 3 is arranged in the embodiment on the end face 15 of the conveyor belt 5.
- the sheet stacks 4 are denoted by 4a to 4f for the following description, wherein the sheet stacks 4e and 4f already denote sheet stacks on the conveyor belt 5.
- the stack lifter 2 is capable of moving in the vertical direction to move the respective upper sheet stack (4a in FIG FIG. 1 , 4b in FIG. 4 , 4c in FIG. 10 ) to bring in a defined position relative to the conveyor belt 5.
- the defined height is symbolized by the altimeter 11 in the figures.
- the stack lifter 2 is shown schematically in the figures as a conveyor belt, for example, allows to bring the stack 3 at a defined distance to the conveyor belt.
- the stack 3 is moved in the exemplary embodiment so that the respective upper stack of sheets is arranged with the lower edge on the conveyor belt level or with a slight offset to the height of the transport device of a maximum of 0.5 mm above to pull off of the upper stack of sheets to have as little height difference.
- the determination of the correct height is determined by corresponding sensors, not shown.
- sensors on both sides of the stack the offset of the respective platform stack 4 and the respective edges 14 are detected and used in the control device, also not shown, for controlling the right-hand layer gripper 7 and the left layer gripper 8.
- the figures also show right and left hold-down device 9, 10 and a Abziehgreifer 6, which is movable along the conveyor belt 5 and the respective sheet stack 4 stores after reaching the conveyor belt speed on the conveyor belt 5.
- the drive of these ply grippers 7, 8 and also the Abziehgreifers 6 by means not shown servo motors.
- the hold-downs 9, 10 serve to close just before grasping the respective layer gripper 7, 8 on the respective upper sheet stack 4a and 4b and 4c to press to make the respective gap 13a, 13b, 13c, 13d and thus the edges 14b, 14c, 14d better detectable and thus tangible, there the thickness of a sheet stack can only be 1.5 mm.
- FIG. 1 already shows two stacks of sheets 4e and 4f, which were stored on the conveyor belt 5 by means of Abziehgreifers 6.
- the peel-off gripper 6 is open and moves in the horizontal direction in the direction of the stack 3.
- Both layer grippers 7, 8 are closed, so that the right-hand layer gripper 7 holds the upper sheet stack 4a against the overhang 12a and for this purpose engages in the intermediate space 13a.
- the left layer gripper 8 holds the underlying stack of sheets 4b on the overhang 12b and for this purpose engages in the intermediate space 13b.
- the right layer gripper 7 has moved the sheet stack 4a for transfer to the stripping gripper 6 a little way from the stack 3 in the direction of the transport belt 5.
- the right layer gripper 7 moves into the transfer position and the peel-off gripper 6 moves towards the right layer gripper 7.
- the right layer gripper 7 transfers the upper sheet stack 4a to the stripping gripper 6.
- the right layer gripper 7 opens while the stripping gripper 6 closes.
- the left layer gripper 8 is still closed and holds the sheet stack 4b firmly.
- the peel-off gripper 6 moves to the conveyor belt 5, while the right-hand layer gripper 7 moves down to grab the sheet stack 4c next.
- the stack 3 moves upwards together with the left layer gripper 8 in order to bring the now upper stack of sheets 4b back into the defined position to the conveyor belt 5.
- FIG. 5 opens the Abziehgreifer 6 after reaching the conveyor belt speed and a defined Anreihungsabstandes to the sheet stack 4e and thus leaves the sheet stack 4a.
- the right-hand layer gripper 7 moves into the stack 3, the right hold-down 9, as described above, pressing on the edge 14b on the upper sheet stack 4b.
- the left layer gripper 8 already has the upper sheet stack 4b similar to FIG. 2 moved toward Abziehgreifer 6 to bring the upper sheet stack 4 b in the transfer position to the Abziehgreifer 6.
- FIG. 9 similar to in FIG. 4 , the peel-off gripper 6 pulls the upper sheet stack 4b from the stack 3 toward the conveyer belt 5, and after the upper sheet stack 4b leaves the stack 3, the left sheet gripper 8 moves down to grip the sheet stack 4d next. At the same time, the right-hand layer gripper 7 moves upwards again together with the stack 3 in order to bring the upper sheet stack 4c back into the defined position to the conveyor belt 5.
- FIG. 10 moves the Abziehgreifer 6 further in the transport direction, in turn, then, as already described above, deposit the sheet stack 4b on the conveyor belt 5 when reaching the conveyor belt speed and the defined Anreihungsabstandes.
- the peel-off gripper is still closed.
- the left ply gripper 8 enters the space 13c in the stack 3 with the left hold down 10 pressing on the upper sheet stack 4c at the edge 14c.
- FIG. 11 opens the Abziehgreifer 6 to store the sheet stack 4b, while the left sheet gripper 8 moves further into the sheet stack 3.
- FIG. 6 close the left sheet gripper 8 to hold the sheet stack 4d when in the next step, as in FIG. 2 shown, the right layer gripper 7 moves the now upper stack of sheets 4c in the direction of Abziehgreifer 6 for the purpose of transfer.
Abstract
Description
Die Erfindung betrifft ein Verfahren und eine Vorrichtung zum automatischen Zuführen von einzelnen losen Blattstapeln aus einer Druckmaschine in eine Klebebindemaschine, wobei die Blattstapel aus der Druckmaschine auf einem Stapel versetzt aufeinanderliegenThe invention relates to a method and a device for automatically feeding individual loose stacks of sheets from a printing machine into an adhesive binding machine, wherein the stacks of sheets from the printing press are staggered on a stack
Durch den Einsatz von Digitaldruck eröffnet sich die Möglichkeit, individuelle Druckprodukte herzustellen. Hierdurch werden häufig nur relativ kleine Serien einer bestimmten Buchart und Buchdicke hergestellt, so dass dies bei der Automation hinsichtlich Flexibilität berücksichtigt werden muss. Nach dem Bedrucken der einzelnen Seiten eines jeweiligen Druckproduktes werden diese Seiten einer Klebebindemaschine zugeführt, wobei gewährleistet sein muss, dass dem jeweiligen Druck auch der jeweils gewünschte, möglicherweise noch individualisierte Einband zugeführt wird.The use of digital printing opens up the possibility of producing individual print products. As a result, often only relatively small series of a particular type of book and book thickness are produced, so that this must be considered in the case of automation in terms of flexibility. After printing the individual pages of a respective printed product, these pages are fed to an adhesive binding machine, wherein it must be ensured that the respective desired, possibly even individualized cover is supplied to the respective print.
Es muss dafür gesorgt werden, dass die aus der Druckmaschine herauskommenden einzelnen Blattstapel mit einsprechend hoher Geschwindigkeit möglichst kontinuierlich eine Klebebindemaschine zugeführt werden, wobei die einzelnen Blattstapel eine Höhe von 1,5 mm und darüber aufweisen können.It must be ensured that the individual sheet stacks coming out of the printing press are fed as continuously as possible to an adhesive binding machine at a correspondingly high speed, wherein the individual sheet stacks can have a height of 1.5 mm and above.
Der vorliegenden Erfindung liegt daher die Aufgabe zugrunde, ein Verfahren und eine Vorrichtung vorzuschlagen, mit der die aus einer Druckmaschine stammenden Blattstapel, die zueinander versetzt auf einem Stapel aufeinanderliegen, automatisch einer Klebebindemaschine einzeln zum Binden zugeführt werden können.The present invention is therefore based on the object to provide a method and an apparatus with which originating from a printing press stack of sheets, which are staggered on a pile stacked on each other, automatically a perfect binding machine can be fed individually for binding.
Diese Aufgabe wird erfindungsgemäß durch ein Verfahren und eine Vorrichtung mit den Merkmalen der nebengeordneten Hauptansprüche gelöst. Weitere vorteilhafte Ausgestaltungen sind den jewelligen rückbezogenen Unteransprüchen zu entnehmen.This object is achieved by a method and an apparatus having the features of the independent main claims. Further advantageous embodiments can be found in the jewelligen dependent subclaims.
Gemäß der Erfindung wird bei dem Verfahren in dem Merkmal A der obere Blattstapel in einer definierten Höhe und Nähe zu einer horizontalen Transporteinrichtung angeordnet. Dies kann derart erfolgen, dass der Stapel stirnseitig oder auch seitlich der Transporteinrichtung, die üblicherweise in Form eines Transportbandes ausgebildet ist, angeordnet wird. Es ist vorteilhaft, den Stapel mit den darauf befindlichen Blattstapeln an der Stirnseite der Transporteinrichtung anzuordnen, um die Zuführung in Transportrichtung so erleichtern. Um den oberen Blattstapel definiert anzuordnen, kann der gesamte Stapel mit den darauf befindlichen losen Blattstapeln in der Höhe und bei Bedarf auch seitlich so positioniert werden, dass eine möglichst einfache Übergabe des oberen Blattstapels auf die Transporteinrichtung möglich ist.According to the invention, in the method in feature A, the top sheet stack is arranged at a defined height and close to a horizontal conveyor. This can be done in such a way that the stack is arranged on the front side or also laterally of the transport device, which is usually designed in the form of a conveyor belt. It is advantageous to arrange the stack with the sheet stacks thereon on the end face of the transport device so as to facilitate the feed in the transport direction. In order to arrange the upper stack of sheets defined, the entire stack with the loose sheet stacks thereon in height and, if necessary, can also be positioned laterally so that the simplest possible transfer of the upper stack of sheets to the transport device is possible.
Nach der Positionierung des oberen Blattstapels werden im nächsten Merkmal B der obere und der darunter befindliche versetzt zum oberen angeordnete Blattstapel an der aus dem Stapel durch den Versatz herausragenden Überstand mittels eines ersten und zweiten Lagengreifers gegriffen, um beim nachfolgendem Merkmal C beim teilweisen Abziehen des oberen Blattstapels von dem Stapel mittels dem den oberen Blattstapel haltenden Lagengreifers ein Verrutschen des unter dem oberen Blattstapel befindlichen Blattstapels zu verhindern.After the positioning of the upper sheet stack, in the next feature B, the upper and lower stacks are gripped on the protrusion projecting from the stack by the offset by means of a first and second ply gripper to grip the following feature C in partially peeling off the upper sheet pile Sheet stack of the stack by means of the upper sheet stack holding sheet gripper to prevent slipping of the sheet stack located under the upper sheet stack.
Nach dem zumindest teilweisen Abziehen des oberen Blattstapels wird dieser gemäß Merkmal D an einen Abziehgreifer übergeben, der den Blattstapel vorzugsweise an zwei Stellen sicher greift und den Blattstapel von dem Stapel herunterzieht und gemäß Merkmal E den Blattstapel auf die horizontale Transporteinrichtung mit einem definierten Abstand zu dem vorangegangenen Blattstapel ablegt. Vorzugsweise transportiert der Abziehgreifer den Blattstapel mit der gleichen Geschwindigkeit der Transporteinrichtung. Damit wird gewährleistet, dass der lose Blattstapel beim Auflegen auf die Transporteinrichtung nicht verrutscht. Nach dem Auflegen ist der Abziehgreifer bereit, einen weiteren bereits teilweise von dem Stapel heruntergezogenen Blattstapeln zu übernehmen und wird dazu zurück in Richtung Stapel bewegt. Gleichzeitig werden die auf dem Transportband liegenden Blattstapel der Klebebindemaschine zugeführt.After the at least partial removal of the upper stack of sheets this is handed over according to feature D to a peel-off gripper, which preferably securely grips the sheet stack in two places and pulls down the stack of sheets from the stack and according to feature E the stack of sheets on the horizontal transport means with a defined distance to the leaves the previous stack of sheets. Preferably, the peel-off gripper transports the stack of sheets at the same speed of the conveyor. This ensures that the loose stack of sheets does not slip when placed on the transport device. After hanging up, the peel-off gripper is ready to take over another stack of sheets already partially pulled down from the stack and is moved back towards the stack. At the same time lying on the conveyor belt stack of sheets are fed to the perfect binding machine.
Nach der Übergabe des Blattstapels an einen Abziehgreifer gemäß Merkmal D wird der nächste Blattstapel, der nun der obere Blattstapel ist, wieder in definierter Höhe und Nähe der Transporteinrichtung positioniert. Der Vorgang läuft in gleicher Weise ab, mit dem Unterschied, dass der Versatz des jetzt oberen Blattstapels zu dem jetzt nächsten darunter befindlichen Blattstapel gegenüber dem vorangegangenen Ablaufzyklus um 180 Grad versetzt ist. Dies betrifft sowohl bei dem Versatz in einer ebenen Richtung als auch in zwei ebenen Richtungen (x, y) zu. Der nächste darunter befindliche Blattstapel wird mittels des freien Lagengreifers entsprechend dem Merkmal B gegriffen, damit vor dem Abziehen beide Blattstapel seitlich gehalten werden. Anschließend werden die Merkmale C bis F wiederholt.After the transfer of the sheet stack to a peel-off gripper according to feature D, the next stack of sheets, which is now the upper sheet stack, is again positioned at a defined height and near the transport device. The process proceeds in the same way, with the difference that the offset of the now upper stack of sheets to the now next lower sheet stack is 180 degrees from the previous cycle. This applies both to the offset in a plane direction and in two plane directions (x, y). The next stack of sheets underneath is gripped by means of the free layer gripper according to feature B so that both sets of sheets are held laterally before being pulled off. Subsequently, the features C to F are repeated.
Vorzugsweise wird nach der Übergabe eines Blattstapels an den Abziehgreifer, der jetzt freie Lagergreifer beim Zurückbewegen zum Greifen der jetzt zweitoberen Lage nach unten bewegt. Gleichzeitig wird der den jetzt oberen Blattstapel noch greifende Lagengreifer mit dem Stapel zur Positionierung des Stapels in definierter Höhe nach oben bewegt. Dadurch wird die Schnelligkeit des Abstapelns verbessert.Preferably, after the transfer of a sheet stack to the peel-off gripper, the free bearing gripper now moves down when gripping back to grasp the now second upper layer. At the same time, the sheet gripper, which still grips the upper sheet stack, is moved upwards with the stack for positioning the stack in a defined height. This improves the speed of destacking.
Vorzugsweise wird kurz vor dem Greifen des jeweiligen Blattstapels auf den oberen Blattstapel in einem Bereich, in dem obere Blattstapel auf dem darunter befindlichen versetzten Blattstapel liegt, an einer versetzten Kante des darunter befindlichen Blattstapels vertikaler Druck ausgeübt. Im fortlaufenden Verfahren wird durch den wechselseitigen Eingriff der Lagengreifer der Druck auf den oberen Blattstapel immer an der Kante ausgeübt, die dem Lagengreifer für den oberen Blattstapel gegenüber liegt. Dadurch wird erreicht, dass der Zwischenraum zwischen den Blattstapel, der nur 1,5 mm betragen kann und die den Zwischenraum bildenden Kanten für das Eingreifen einer Greifeinrichtung und Greifen des Überstandes definiert wird.Preferably, just prior to gripping the respective sheet stack on the upper sheet stack in a region in which upper sheet stack lies on the staggered sheet stack underneath, vertical pressure is applied to an offset edge of the sheet stack below. In the continuous process, the mutual engagement of the ply grippers always exerts the pressure on the top sheet stack at the edge opposite the ply gripper for the top sheet stack. It is thereby achieved that the gap between the stack of sheets, which can be only 1.5 mm and the gap forming edges for the intervention of a gripping device and gripping the supernatant is defined.
Das Eingreifen in den Zwischenraum kann mittels eines dünnen Hebers oder ähnlichen geeigneten Mitteln in Verbindung einer entsprechend ausgebildeten Greifeinrichtung erfolgen. Nach dem Eingreifen in den Zwischenraum kann mit der hierbei tätigwerdenden Greifeinrichtung der obere Blattstapel gegriffen und zumindest teilweise von dem Stapel abgezogen werden.The intervention in the intermediate space can take place by means of a thin lift or similar suitable means in conjunction with a correspondingly formed gripping device. After intervening in the intermediate space, the upper sheet stack can be gripped and at least partially withdrawn from the stack with the gripping device becoming active in this case.
Der Versatz der einzelnen aufeinanderliegenden losen Blattstapel erfolgt üblicherweise nur in eine Richtung, so dass die Überstände der Blattstapel immer um 180 Grad zueinander angeordnet sind. Grundsätzlich ist es auch möglich, dass die Blattstapel so aufeinanderliegen, dass ein Versatz zu dem darunter befindlichen Blattstapel in zwei ebenen Richtungen (x, y) erfolgt. Abhängig von der Art der versetzten Stapelung kann der Abzug entweder quer oder längs zu dem Versatz durchgeführt werden. In den meisten Fällen werden die Blattstapel einen einfachen Versatz, d. h. in nur einer ebenen Richtung aufweisen. Hierdurch hat der Stapel mit den einzelnen Blattstapeln eine definierte Anlagekante in Richtung der horizontalen Transporteinrichtung. Gemäß dieser bevorzugten Ausbildung des Verfahrens werden die Blattstapel quer zum Versatz der Blattstapel zueinander abgezogen. Gemäß dieser vorteilhaften Ausgestaltung können durch die definierte Anlagekante und den Abzug quer zu dem Versatz auch leicht in die zur Anlagekante entgegengesetzte Richtung veränderliche Formate verarbeitet werden.The offset of the individual stacked loose stack of sheets usually takes place only in one direction, so that the supernatants of the stacks of sheets are always arranged at 180 degrees to each other. In principle, it is also possible for the stack of sheets to lie on one another in such a way that an offset to the sheet stack underneath takes place in two planar directions (x, y). Depending on the nature of the staggered stacking, the trigger may be made either transversely or longitudinally to the offset. In most cases, the stacks of sheets will have a simple offset, ie, in only one planar direction. As a result, the stack with the individual sheet stacks has a defined contact edge in the direction of the horizontal transport device. According to this preferred embodiment of the method, the stacks of sheets are drawn off from one another transversely to the offset of the stacks of sheets. According to this advantageous embodiment can be processed by the defined contact edge and the trigger transverse to the offset also slightly in the direction opposite to the contact edge direction variable formats.
Das derart ablaufende Verfahren ermöglicht somit den gewünschten kontinuierlichen Ablauf bei hoher Taktgeschwindigkeit und ohne Verrutschen der einzelnen Blätter eines Blattstapels.The method thus running thus enables the desired continuous operation at high cycle speed and without slippage of the individual sheets of a sheet stack.
Gemäß einer weiteren vorteilhaften Ausbildung des Verfahrens werden die Blattstapel auf die Transportrichtung veränderbarer Bänder der horizontalen Transporteinrichtung gelegt, die als Speicher zur Erzielung eines gleichen Anreihungsabstandes der Blattstapel dienen. Dies ist insbesondere dann der Fall, wenn beim Abnehmen der Blattstapel von den Stapeln eine Verzögerung eintritt, die beispielsweise dann eintreten kann, wenn entweder ein neuer Stapel mit losen Blattstapeln herangeführt und der Abstapelvorgang deshalb unterbrochen wird, oder wenn gemäß einer weiteren vorteilhaften Ausbildung der Stapel von unten aufgefüllt wird. Hierzu ist es erforderlich, in bekannter Art und Weise, mittels einer entsprechenden Halteeinrichtung den bereits in Position befindlichen Stapel freischwebend zu halten und von unten einen weiteren Stapel heranzuführen. Danach wird die Halteeinrichtung zwischen den beiden Stapeln herausgezogen. Auch dieser Vorgang kann zu einer kurzen Unterbrechung des Abstapelvorgangs führen, da der obere Blattstapel wieder genau positioniert werden muss. Mittels eines bekannten in Transportrichtung veränderbaren Bandes kann diese Unterbrechung aufgefangen werden, so dass dem Klebebinder die Blattstapel kontinuierlich zugeführt werden.According to a further advantageous embodiment of the method, the sheet stacks are placed on the transport direction of variable bands of the horizontal transport device, which serve as memory to achieve a same Anreihungsabstandes the sheet stack. This is particularly the case when, when removing the stack of sheets from the stacks a delay occurs, which can occur, for example, when either a new stack of loose sheet stacks introduced and the stacking process is therefore interrupted, or if according to a further advantageous embodiment of the stack is filled from below. For this purpose, it is necessary, in a known manner, by means of a corresponding holding device to hold the stack already in position free-floating and introduce another stack from below. Thereafter, the holding device is pulled out between the two stacks. This process can also lead to a brief interruption of the stacking process, because the top sheet stack must be accurately positioned again. By means of a known band which can be changed in the direction of transport, this interruption can be absorbed, so that the sheet stack is fed continuously to the perfect binder.
Vorzugsweise wird der obere Blattstapel mit der Unterkante auf der Höhe der Transporteinrichtung oder mit einem Versatz zu der Höhe der Transporteinrichtung von maximal +0,5 mm positioniert, um die Höhendifferenz möglichst gering zu halten.Preferably, the upper sheet stack is positioned with the lower edge at the level of the transport device or with an offset to the height of the transport device of a maximum of +0.5 mm in order to minimize the height difference.
Um eine ausreichende Schnelligkeit zu gewährleisten, wird der Stapel bereits für den nächsten oberen Blattstapel in Position gebracht, sobald der vorangegangene Blattstapel von dem Stapel gezogen wurde. Zusätzlich werden vorteilhafterweise die Merkmale A bis C mit den nachfolgenden Blattstapeln gleichzeitig mit Merkmal F für den vorangegangenen Blattstapel ausgeführt. Das bedeutet, dass ein Greifen der Blattstapel bereits durchgeführt wird, wenn der vorangegangene Blattstapel noch der Transporteinrichtung zugeführt wird.To ensure sufficient speed, the stack is already positioned for the next top sheet stack as soon as the previous stack of sheets has been pulled from the stack. In addition, the features A to C with the subsequent sheet stacks are advantageously executed simultaneously with feature F for the preceding sheet stack. The means that a gripping of the sheet stacks is already performed when the previous sheet stack is still fed to the transport device.
Gemäß einer weiteren vorteilhaften Ausbildung des Verfahrens wird die Dicke der Blattstapel und/oder der Zwischenraum zwischen den Blattstapeln sowie die Blattstapelkanten der beiden oberen Blattstapel im Bereich des Versatzes detektiert, um damit die genauen Positionen für das Niederdrücken und/oder Eingreifen in den Zwischenraum zu steuern.According to a further advantageous embodiment of the method, the thickness of the sheet stacks and / or the gap between the sheet stacks and the sheet stacking edges of the two upper sheet stacks are detected in the region of the offset in order to control the exact positions for the depression and / or engagement in the gap ,
Vorteilhafterweise erfolgt das Niederhalten und das Greifen pneumatisch und die dazu erforderlichen Einrichtungen werden mittels Servomotoren in horizontaler und vertikaler Richtung betätigt.Advantageously, the holding down and the gripping takes place pneumatically and the devices required for this purpose are actuated by means of servomotors in the horizontal and vertical directions.
Die erfindungsgemäße Vorrichtung zum automatischen Zuführen von einzelnen losen Blattstapeln aus einer Druckmaschine in eine Klebebindemaschine weist einen in vertikaler Richtung verfahrbaren Stapelträger an der Stirnseite einer horizontalen Transporteinrichtung zur Aufnahme eines Stapels aus einzelnen losen Blattstapeln,
Detektiereinrichtungen zum Erkennen der Kanten der beiden oberen Blattstapel im Bereich des Versatzes,
Detektiereinrichtungen zum Erfassen der Dicke oder des Zwischenraumes zwischen den Blattstapeln,
Detektiereinrichtungen zum Positionieren des oberen Blattstapels in einer definierten Stellung zur Stirnseite der Transporteinrichtung,
rechte und linke Niederhalter im Bereich der dem Überstand des jeweiligen Blattstapels gegenüberliegenden Kante,
in horizontaler und vertikaler Richtung bewegbare rechte und linke Greifeinrichtungen zum Greifen der beiden oberen Blattstapel an dem Überstand und Bewegen des Blattstapels in Richtung Transporteinrichtung, und
eine parallel zu der Transporteinrichtung verfahrbare Abziehgreifeinrichtung zum Greifen der vom Stapel mittels der Greifeinrichtung vereinzelnden Blattstapel und Ablegen des Blattstapels auf der Transporteinrichtung
auf.The device according to the invention for automatically feeding individual loose stacks of sheets from a printing machine into an adhesive binding machine has a vertically movable stack carrier on the front side of a horizontal transport device for receiving a stack of individual loose stacks of sheets,
Detecting means for detecting the edges of the two upper stack of sheets in the region of the offset,
Detecting means for detecting the thickness or the gap between the stacks of sheets,
Detecting means for positioning the upper sheet stack in a defined position to the front side of the transport device,
right and left hold-down in the region of the edge opposite the projection of the respective sheet stack,
horizontally and vertically movable right and left gripping means for gripping the two upper sheet stacks on the projection and moving the sheet stack in the direction of transport means, and
a pull-off gripper movable in parallel with the transport device for gripping the stack of sheets separating from the stack by means of the gripping device and depositing the stack of sheets on the transport device
on.
Mit dem erfindungsgemäß ausgestalteten Verfahren sowie der Vorrichtung ist es möglich, einzelne Blattstapel bis hinab zu einer Dicke von 1,5 mm, die versetzt aufeinanderliegend von einer Druckmaschine auf einem Stapel bereitgestellt werden, von diesem herunterzunehmen und auf eine horizontale Transporteinrichtung zu bringen, die dann die einzelnen Blattstapel kontinuierlich zu einer Klebebindemaschine weitertransportiert. Das Verfahren erlaubt eine hohe Taktzahl im Bereich von 7500 Takte pro Stunde, wobei die Besonderheit darin besteht, dass die Blattstapel zueinander versetzt sind und unterschiedlich dick sein können. Je nach Anwendungsfall können die einzelnen Blattstapel in der Dicke von oben nach unten abnehmen oder zunehmen, wobei die Kenntnis über die ungefähre Dicke des jeweiligen Blattstapels für das Verfahren von Vorteil ist. Grundsätzlich ist es aber auch möglich, dass Blattstapel unterschiedlicher Dicke im Stapel verteilt verarbeitet werden können.With the inventively designed method and the device, it is possible, individual sheet stacks down to a thickness of 1.5 mm, which are staggered from one another provided by a printing machine on a stack to take down from this and bring to a horizontal transport device, which then the individual stack of sheets continuously transported to an adhesive binding machine. The method allows a high number of cycles in the range of 7500 cycles per hour, the peculiarity is that the sheet stacks are offset from each other and can be different in thickness. Depending on the application, the individual sheet stacks may decrease in thickness from top to bottom or increase, with the knowledge of the approximate thickness of each sheet stack for the process is beneficial. In principle, however, it is also possible that sheet stacks of different thickness can be processed distributed in the stack.
Im Nachfolgenden werden anhand der
Die
Die Blattstapel 4 sind für die nachfolgende Beschreibung mit 4a bis 4f bezeichnet, wobei die Blattstapel 4e und 4f bereits auf dem Transportband 5 befindliche Blattstapel bezeichnen. Der Stapelheber 2 ist in der Lage, sich in vertikaler Richtung zu bewegen, um den jeweiligen oberen Blattstapel (4a in
In
In der
In
In
In
In
In
In
In
In
Claims (12)
A Anordnen des oberen Blattstapels (4a, 4b, 4c) in definierter Höhe
und Nähe zu einer horizontalen Transporteinrichtung (5)
B Greifen des oberen und des darunter befindlichen versetzt zu dem
oberen angeordneten Blattstapel (4a, 4b; 4b, 4c) an der aus dem Stapel (3) durch den Versatz herausragenden Überstand (12a, 12b, 12c) mittels eines ersten und eines zweiten Lagengreifers (7, 8),
C teilweises Abziehen des oberen Blattstapels (4a, 4b, 4c), von dem
Stapel (3) mittels des den oberen Blattstapels (4a, 4b, 4c) haltenden Lagengreifers (7, 8, 7),
D Übergeben des oberen Blattstapels (4a, 4b, 4c) an einen Abziehgreifer (6),
E Transportieren des Blattstapels (4a, 4b) mittels des Abziehgreifers
(6) auf die horizontale Transporteinrichtung (5), Ablage des Blattstapels (4a, 4b) mit definiertem Abstand zu einem voranlaufenden Blattstapel (4e), Zurückbewegen des Abziehgreifers (6) und Weitertransportieren der Blattstapel (4) zu der Klebebindemaschine,
F Anordnung des nächsten oberen Blattstapels (4b, 4c) in definierter
Höhe zu der Transporteinrichtung (5) und Greifen des nächsten Blattstapels (4c) mittels des freien Lagengreifers (7, 8) entsprechend Merkmal B,
G Wiederholen der Merkmale C bis F.Method for automatically feeding individual loose sheet stacks (4) from a printing press into an adhesive binding machine, the sheet stacks (4) being offset from the printing press on a stack (3), characterized by
A arranging the upper sheet stack (4a, 4b, 4c) in a defined height
and proximity to a horizontal transport device (5)
B grasping the upper and lower located offset to the
4b, 4c) on the stack (3a) protruding from the stack (3) by the offset projection (12a, 12b, 12c) by means of a first and a second layer gripper (7, 8),
C partially peeling off the upper sheet stack (4a, 4b, 4c), from the
Stack (3) by means of the sheet gripper (7, 8, 7) holding the upper sheet stack (4a, 4b, 4c),
D transferring the upper sheet stack (4a, 4b, 4c) to a peel-off gripper (6),
E transporting the sheet stack (4a, 4b) by means of the peel-off gripper
(6) on the horizontal transport device (5), storage of the sheet stack (4a, 4b) with a defined distance to a preceding Sheet stack (4e), moving back the Abziehgreifers (6) and further transporting the sheet stack (4) to the adhesive binding machine,
F Arrangement of the next upper stack of sheets (4b, 4c) in defined
Height to the transport device (5) and gripping the next sheet stack (4c) by means of the free layer gripper (7, 8) according to feature B,
G Repeat characteristics C to F.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP10001660A EP2361861A1 (en) | 2010-02-18 | 2010-02-18 | Method and device for feeding individual stacks of sheets from a printer into an adhesive band machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP10001660A EP2361861A1 (en) | 2010-02-18 | 2010-02-18 | Method and device for feeding individual stacks of sheets from a printer into an adhesive band machine |
Publications (1)
Publication Number | Publication Date |
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EP2361861A1 true EP2361861A1 (en) | 2011-08-31 |
Family
ID=42321142
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP10001660A Withdrawn EP2361861A1 (en) | 2010-02-18 | 2010-02-18 | Method and device for feeding individual stacks of sheets from a printer into an adhesive band machine |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2657161A1 (en) | 2012-04-26 | 2013-10-30 | Hugo Beck Maschinenbau GmbH & Co. KG | Method and device for feeding individual stacks of sheets from a printer into an adhesive band machine |
CN117342248A (en) * | 2023-12-04 | 2024-01-05 | 烟台同化防水保温工程有限公司 | Raw sheet conveying equipment for composite board processing |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999024340A1 (en) * | 1997-11-07 | 1999-05-20 | Standard Duplicating Machines Corporation | Paper set feeding |
US20040150152A1 (en) * | 2002-05-03 | 2004-08-05 | James Russo | Paper set feeding apparatus |
US20090115122A1 (en) * | 2007-11-05 | 2009-05-07 | Roth Curtis A | Automatic warp compensation |
-
2010
- 2010-02-18 EP EP10001660A patent/EP2361861A1/en not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999024340A1 (en) * | 1997-11-07 | 1999-05-20 | Standard Duplicating Machines Corporation | Paper set feeding |
US20040150152A1 (en) * | 2002-05-03 | 2004-08-05 | James Russo | Paper set feeding apparatus |
US20090115122A1 (en) * | 2007-11-05 | 2009-05-07 | Roth Curtis A | Automatic warp compensation |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2657161A1 (en) | 2012-04-26 | 2013-10-30 | Hugo Beck Maschinenbau GmbH & Co. KG | Method and device for feeding individual stacks of sheets from a printer into an adhesive band machine |
CN117342248A (en) * | 2023-12-04 | 2024-01-05 | 烟台同化防水保温工程有限公司 | Raw sheet conveying equipment for composite board processing |
CN117342248B (en) * | 2023-12-04 | 2024-02-13 | 烟台同化防水保温工程有限公司 | Raw sheet conveying equipment for composite board processing |
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