EP1475328B1 - Delivery device for flat cut articles, in particular for sheets cut with a rotary cross cutter - Google Patents

Delivery device for flat cut articles, in particular for sheets cut with a rotary cross cutter Download PDF

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Publication number
EP1475328B1
EP1475328B1 EP03010464A EP03010464A EP1475328B1 EP 1475328 B1 EP1475328 B1 EP 1475328B1 EP 03010464 A EP03010464 A EP 03010464A EP 03010464 A EP03010464 A EP 03010464A EP 1475328 B1 EP1475328 B1 EP 1475328B1
Authority
EP
European Patent Office
Prior art keywords
brake
suction
sheets
air
depositing device
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
Application number
EP03010464A
Other languages
German (de)
French (fr)
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EP1475328A1 (en
EP1475328A9 (en
Inventor
Willi Erkelenz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EHA Spezialmaschinenbau GmbH
Original Assignee
EHA Spezialmaschinenbau GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by EHA Spezialmaschinenbau GmbH filed Critical EHA Spezialmaschinenbau GmbH
Priority to AT03010464T priority Critical patent/ATE414664T1/en
Priority to DE50310804T priority patent/DE50310804D1/en
Priority to EP03010464A priority patent/EP1475328B1/en
Priority to PL367752A priority patent/PL206562B1/en
Priority to US10/842,709 priority patent/US6962334B2/en
Publication of EP1475328A1 publication Critical patent/EP1475328A1/en
Publication of EP1475328A9 publication Critical patent/EP1475328A9/en
Application granted granted Critical
Publication of EP1475328B1 publication Critical patent/EP1475328B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/68—Reducing the speed of articles as they advance
    • B65H29/686—Pneumatic brakes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/10—Means using fluid made only for exhausting gaseous medium
    • B65H2406/12—Means using fluid made only for exhausting gaseous medium producing gas blast
    • B65H2406/122—Nozzles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/30—Suction means
    • B65H2406/33—Rotary suction means, e.g. roller, cylinder or drum
    • B65H2406/333—Rotary suction means, e.g. roller, cylinder or drum rotating around an axis perpendicular to the surface of handled material, e.g. disk

Definitions

  • the invention relates to a storage device for cut flat products, in particular for cut with a rotary cross cutter sheets, with a feed device for the cut sheets, a Saugbremstisch for braking a supplied sheet and a suction brake table downstream stacking device for stacking the sheets.
  • a sheet is usually accelerated in relation to a subsequent sheet.
  • an acceleration of the sheets with respect to the conveying speed from the feeding device takes place. So that the sheets can be stacked functionally reliable and without damage in the stacking device, then takes place again on the suction brake table, a reduction in the conveying speed of the sheets.
  • On the suction brake table a subsequent sheet is normally transported, as it were overlapping, with respect to a braked sheet.
  • Out EP 0 408 893 A1 is a sheet tray for rotary cross cutter known.
  • cut sheets are first accelerated by Vorziehrollen.
  • a pulley of a guided over a suction brake suction brake belt is freely rotatably mounted.
  • a fan By means of a fan, the beginnings of the sheets are lifted over the suction brake band, while the ends are pressed onto the suction brake band in such a way that the accelerated sheets are braked before storage to a non-critical speed.
  • the structure of this known device is relatively expensive. Incidentally, the reliability of the storage of the sheets on the stacking device can be improved.
  • the invention the technical problem of specifying a storage device of the type mentioned above, which is characterized by a simple structure and by a very reliable and trouble-free promotion and storage of the sheets.
  • the invention teaches a storage device of the type mentioned, which is characterized in that rest on the Saugbremstisch at least two rotating brake plates whose Bremstellerober thoughts is arranged parallel to the Saugbremstischober constitution that the brake plates each having a plurality of suction ports and that the suction brake table below each brake actuator has at least one suction port for sucking air.
  • the brake disk surface is arranged parallel to the suction brake table surface.
  • the feed device has a grooved roller, which consists of a plurality of spaced-apart roller sections.
  • the supply device is expediently equipped with pressure rollers which interact with the roller sections.
  • the roller sections are non-rotatably mounted on a driven shaft.
  • the sheets are passed between the roller sections and the pressure rollers.
  • blowing nozzles are arranged between the roller sections of the grooved roller with the proviso that a conveyed by the feed device sheet is acted upon from below with blast air. Conveniently, the blowing air nozzles are directed obliquely upwards.
  • the two brake plates are arranged side by side transversely to the conveying direction on the suction brake table and rotate in opposite directions.
  • the conveying direction here means the transport or conveying direction of the sheets to the stacking device. Conveniently, therefore, one brake disc rotates clockwise and the other brake disc counterclockwise. It is also within the scope of the invention that the two brake plates rotate with respect to their adjacent or in their adjacent plate halves in the conveying direction of the sheets.
  • the suction openings are arranged distributed in the brake disc surface over the circumference of each brake disc and preferably arranged distributed regularly. It is within the scope of the invention that the brake plates are circular or circular in plan view. Conveniently, the suction openings are arranged distributed regularly in the Bremstellerober construction both in the radial direction and in the circumferential direction. The suction openings have the same constant distances from each other according to an embodiment. It is located in Frame of the invention that the brake plates are formed as it were perforated.
  • a suction opening is designed as a sector of a circle under a brake disc.
  • An intake opening thus expediently has the shape of a circular sector or circular cutout and is adapted to the circular shape of the brake disc, ie in particular to the radius of the brake disc.
  • the radius of the circular sector of an intake opening is equal to or slightly smaller than the radius of a circular brake actuator.
  • An intake opening is preferably completely covered by the associated brake plate.
  • a circular sector-shaped suction opening is formed in a quarter-circle. The sector angle ⁇ is then 90 ° or about 90 °.
  • the circular-sector-shaped suction opening is rotated relative to a line running in the conveying direction and through the center of a brake disc by an angle ⁇ of 3 to 45 °, preferably 3 to 30 °, very preferably 3 to 20 °.
  • the corresponding radial of the circular sector-shaped intake opening encloses this angle ⁇ with said straight line.
  • the suction openings are each arranged below the juxtaposed or below the adjacent Bremstellerhbuln. It is within the scope of the invention that the Intake openings are arranged mirror-symmetrically with respect to an imaginary between the two brake plates mirror plane.
  • At least one suction device is provided, with which air is sucked through the suction openings of the brake plates and through the suction openings in the suction brake table. By sucking in air, sheets transported via the brake table can be braked in a functionally reliable and uniform manner.
  • the two brake plates or the rotation of the two brake plates is driven synchronously, either with one or with two or more drive means.
  • the inclination of the Saugbremstischober Structure is adjusted adjustable in the conveying direction.
  • the Saugbremstischober nature is in the conveying direction obliquely upward or in the conveying direction obliquely downward pointing adjustable.
  • the suction brake stacker on the side of at least one air nozzle, which air nozzle is arranged with the proviso that a to be deposited on the stacking device coming from Saugbremstisch bow is acted upon from below with blowing air.
  • the air nozzle carrying air for an arc is generated, which carrying air or blowing air expediently in the conveying direction or at the bottom of a deposited on the stacking device Arch along is blown.
  • the air nozzle is arranged below the Saugbremstischober Type and below the brake plates.
  • the air nozzle is designed as a slot die. This slot die extends over at least 50% of the width b of a sheet to be deposited in the stacking device. It is understood that at least one corresponding blower is provided for generating the blown air.
  • the invention is based on the finding that with the storage device according to the invention a very reliable and effective braking of coming from the feeder sheets is possible and that subsequently a functionally reliable and uniform storage of the sheets on the stacking device is possible. It should be emphasized that the storage device works trouble-free and above all quality impairments of the stored sheets, such as cracks, waves or kinks can be avoided. To emphasize is further that the storage device according to the invention is characterized by a relatively simple structure and thus can be produced inexpensively. Compared to the measures known from the prior art described above, the storage device according to the invention is characterized in that no significant disturbing transverse forces are exerted on the guided over the Saugbremstisch sheets.
  • the figures show a storage device according to the invention for cut flat products, namely in the embodiment for cut with a rotary cross cutter not shown sheets 1.
  • a feed device 2 is provided for the sheets 1, which has a grooved roll 3, which consists of a plurality of spaced apart Roller sections 4 consists.
  • the roller sections 4 are non-rotatably mounted on a driven shaft.
  • the feeding device 2 has pressure rollers 5, which interact with the roller sections 4 or which press on the roller sections 4. Between the roller sections 4 and the pressure rollers 5, the sheets 1 are performed. In the feeding device 2 takes place in comparison to the previous conveying speed of the sheets 1, an acceleration of the sheets.
  • roller sections 4 tuyeres 6 are arranged with the proviso that a funded by the feeder 2 sheet 1 by means of the tuyeres 6 of is subjected to blowing air at the bottom. That is in the Fig. 1 been illustrated by an arrow.
  • the storage device furthermore has a suction brake table 7 for braking the supplied sheets 1.
  • two rotating brake plates 8, 9 are arranged, which are preferably arranged in the embodiment with its Bremstellerober configuration parallel to the Saugbremstischober configuration.
  • Each brake plate 8, 9 has a plurality of suction openings 10. Below each brake actuator 8, 9, an intake opening 11, 12 is provided for sucking air in the embodiment.
  • the two brake plates 8, 9 are arranged transversely to the conveying direction of the sheets 1 side by side on the suction brake table 7 and rotate in opposite directions. That is, one brake disc 8 rotates clockwise while the other brake disc 9 rotates counterclockwise. Conveniently and in the exemplary embodiment, the two brake plates 8, 9 rotate with respect to their side by side or in the adjacent plate halves 13, 14 in the conveying direction of the sheets. 1
  • suction openings 10 are regularly distributed over the circumference of a circular brake actuator 8, 9.
  • suction openings 10 are arranged distributed regularly in the radial direction of a brake actuator 8, 9.
  • each suction port 11, 12 is formed circular-sector-shaped.
  • each intake opening 11, 12 is completely covered by the associated brake plate 8, 9.
  • the circular sector (circular section) of each intake opening 11, 12 can be described by the sector angle ⁇ .
  • the sector angle ⁇ is in the exemplary embodiment 105 °, so that the circular sector of each suction port 11, 12 is slightly larger than a quarter circle.
  • the radial 15 of the circular sector of one of the intake ports 11, 12 with an extending in the conveying direction and through the circle center 16 of a brake disc 8, 9 straight line 17 an angle ⁇ , which is about 5 ° in the embodiment.
  • Fig. 2 it can be seen that the intake openings 11, 12 are respectively arranged below the adjacently arranged or mutually adjacent brake plate halves 13, 14.
  • the suction openings 11, 12 are arranged mirror-symmetrically with respect to a mirror plane S.
  • suction openings 11, 12 are connected to at least one suction device not shown in the figures and with the aid of this suction device air is sucked through the suction openings 10 of the brake plates 8, 9 and through the suction openings 11, 12. In this way, an effective braking of the sheets 1 takes place on the Saugbremstisch. 7
  • the suction brake table 7 has an air nozzle 18 on the stacking device side, which air nozzle 18 has an air jet 18 on the stacking device 19 to be deposited sheet 1 from below with blowing air.
  • the blown air is blown in the conveying direction of the sheets 1 and works as it were as carrying air for the sheets 1.
  • the air nozzle 18 is preferably formed and in the embodiment as a slot die. This slot die extends over at least 50% of the width b of a sheet 1 to be deposited. It is understood that at least one blower (not shown) is provided for producing this blown air or carrying air.
  • the sheets 1 are deposited or stacked on a pallet 20 of the stacking device 19.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Nonmetal Cutting Devices (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)

Abstract

The depositing device for cut flat products, and especially sheets of paper cut by a guillotine has a suction brake table (7) for the braking of a fed sheet, and a stacking device (19) connected to the suction brake table. At least two rotating brake plates (8) lie upon the suction brake table and have their top surface parallel or generally parallel to the surface of the suction brake table. The brake plates have a number of suction holes, and the suction brake table has below each brake plate at least one suction hole in circle sector form for the drawing in of air.

Description

Die Erfindung betrifft eine Ablagevorrichtung für geschnittene flächige Erzeugnisse, insbesondere für mit einem Rotationsquerschneider geschnittene Bögen, mit einer Zuführungseinrichtung für die geschnittenen Bögen, einem Saugbremstisch zum Abbremsen eines zugeführten Bogens und einer dem Saugbremstisch nachgeschalteten Stapelvorrichtung zum Stapeln der Bögen. - In der Zuführungseinrichtung wird ein Bogen gegenüber einem nachfolgenden Bogen in der Regel beschleunigt. Mit anderen Worten erfolgt in der Zuführungseinrichtung eine Beschleunigung der Bögen in Bezug auf die Fördergeschwindigkeit von der Zuführungseinrichtung. Damit die Bögen funktionssicher und ohne Beschädigungen in der Stapelvorrichtung gestapelt werden können, findet auf dem Saugbremstisch dann wieder eine Reduzierung der Fördergeschwindigkeit der Bögen statt. Auf dem Saugbremstisch wird normalerweise auch ein nachfolgender Bogen gleichsam überlappend bezüglich eines abgebremsten Bogens transportiert.The invention relates to a storage device for cut flat products, in particular for cut with a rotary cross cutter sheets, with a feed device for the cut sheets, a Saugbremstisch for braking a supplied sheet and a suction brake table downstream stacking device for stacking the sheets. In the feeding device, a sheet is usually accelerated in relation to a subsequent sheet. In other words, in the feeding device, an acceleration of the sheets with respect to the conveying speed from the feeding device takes place. So that the sheets can be stacked functionally reliable and without damage in the stacking device, then takes place again on the suction brake table, a reduction in the conveying speed of the sheets. On the suction brake table, a subsequent sheet is normally transported, as it were overlapping, with respect to a braked sheet.

Aus EP 0 408 893 A1 ist eine Bogenablage für Rotationsquerschneider bekannt. Dabei werden geschnittene Bögen zunächst durch Vorziehrollen beschleunigt. Auf der selben Achse, auf der die Vorziehrollen befestigt sind, ist eine Umlenkrolle eines über einen Saugbremstisch geführten Saugbremsbandes frei drehbar gelagert. Der Antrieb des Saugbremsbandes, unter dem ein Saugbremskasten angeordnet ist, erfolgt über eine weitere Umlenkrolle. Mittels eines Gebläses werden die Anfänge der Bögen über das Saugbremsband hinweggehoben, während die Enden in der Weise auf das Saugbremsband gedrückt werden, dass die beschleunigten Bögen vor der Ablage auf eine unkritische Geschwindigkeit gebremst werden. Der Aufbau dieser bekannten Vorrichtung ist verhältnismäßig aufwendig. Im Übrigen ist die Funktionssicherheit der Ablage der Bögen auf der Stapelvorrichtung verbesserungsfähig.Out EP 0 408 893 A1 is a sheet tray for rotary cross cutter known. Here, cut sheets are first accelerated by Vorziehrollen. On the same axis on which the Vorziehrollen are attached, a pulley of a guided over a suction brake suction brake belt is freely rotatably mounted. The drive of the Saugbremsbandes, under which a Saugbremskasten is arranged, via a further deflection roller. By means of a fan, the beginnings of the sheets are lifted over the suction brake band, while the ends are pressed onto the suction brake band in such a way that the accelerated sheets are braked before storage to a non-critical speed. The structure of this known device is relatively expensive. Incidentally, the reliability of the storage of the sheets on the stacking device can be improved.

Demgegenüber liegt der Erfindung das technische Problem zugrunde, eine Ablagevorrichtung der eingangs genannten Art anzugeben, die sich durch einen einfachen Aufbau und durch eine sehr funktionssichere und störungsfreie Förderung und Ablage der Bögen auszeichnet.In contrast, the invention, the technical problem of specifying a storage device of the type mentioned above, which is characterized by a simple structure and by a very reliable and trouble-free promotion and storage of the sheets.

Zur Lösung dieses technischen Problems lehrt die Erfindung eine Ablagevorrichtung der eingangs genannten Art, welche dadurch gekennzeichnet ist, dass auf dem Saugbremstisch zumindest zwei rotierende Bremsteller aufliegen, deren Bremstelleroberfläche parallel zu der Saugbremstischoberfläche angeordnet ist, dass die Bremsteller jeweils eine Vielzahl von Saugöffnungen aufweisen und dass der Saugbremstisch unterhalb jedes Bremstellers zumindest eine Ansaugöffnung zum Ansaugen von Luft aufweist. Erfindungsgemäß ist die Bremstelleroberfläche parallel zur Saugbremstischoberfläche angeordnet. Dass die rotierenden Bremsteller auf dem Saugbremstisch aufliegen meint, dass die Bremsteller lediglich einen sehr geringen Abstand zum Saugbremstisch aufweisen, so dass eine störungsfreie Rotation gewährleistet ist.To solve this technical problem, the invention teaches a storage device of the type mentioned, which is characterized in that rest on the Saugbremstisch at least two rotating brake plates whose Bremstelleroberfläche is arranged parallel to the Saugbremstischoberfläche that the brake plates each having a plurality of suction ports and that the suction brake table below each brake actuator has at least one suction port for sucking air. According to the invention, the brake disk surface is arranged parallel to the suction brake table surface. The fact that the rotating brake actuators rest on the suction brake table means that the brake discs only have a very small distance to the suction brake table, so that trouble-free rotation is ensured.

Vorzugsweise weist die Zuführungseinrichtung eine Rillenwalze auf, die aus einer Mehrzahl von mit Abstand zueinander angeordneten Walzenabschnitten besteht. Fernerhin ist die Zuführungseinrichtung zweckmäßigerweise mit Andrückrollen ausgestattet, die mit den Walzenabschnitten wechselwirken. Die Walzenabschnitte sitzen drehfest auf einer angetriebenen Welle. Die Bögen werden zwischen den Walzenabschnitten und den Andrückrollen hindurchgeführt. Es liegt im Rahmen der Erfindung, dass in der Zuführungseinrichtung eine Beschleunigung eines Bogens im Vergleich zu der Fördergeschwindigkeit des Bogens direkt hinter der Schneidvorrichtung bzw. hinter dem Rotationsquerschneider erfolgt. Nach sehr bevorzugter Ausführungsform der Erfindung sind zwischen den Walzenabschnitten der Rillenwalze Blasdüsen mit der Maßgabe angeordnet, dass ein durch die Zuführungseinrichtung geförderter Bogen von unten mit Blasluft beaufschlagt wird. Zweckmäßigerweise sind die Blasluftdüsen schräg nach oben gerichtet.Preferably, the feed device has a grooved roller, which consists of a plurality of spaced-apart roller sections. Furthermore, the supply device is expediently equipped with pressure rollers which interact with the roller sections. The roller sections are non-rotatably mounted on a driven shaft. The sheets are passed between the roller sections and the pressure rollers. It is within the scope of the invention that in the feeder an acceleration of a sheet in comparison to the conveying speed of the sheet directly behind the cutting device or behind the rotary cross cutter takes place. According to a very preferred embodiment of the invention, blowing nozzles are arranged between the roller sections of the grooved roller with the proviso that a conveyed by the feed device sheet is acted upon from below with blast air. Conveniently, the blowing air nozzles are directed obliquely upwards.

Es liegt im Rahmen der Erfindung, dass die beiden Bremsteller quer zur Förderrichtung nebeneinander auf dem Saugbremstisch angeordnet sind und gegensinnig rotieren. Förderrichtung meint hier die Transport- bzw. Förderrichtung der Bögen zur Stapelvorrichtung hin. Zweckmäßigerweise rotiert also ein Bremsteller im Uhrzeigersinn und der andere Bremsteller im Gegenuhrzeigersinn. Es liegt fernerhin im Rahmen der Erfindung, dass die beiden Bremsteller bezüglich ihrer aneinander angrenzenden bzw. in ihren einander benachbarten Tellerhälften in Förderrichtung der Bögen rotieren.It is within the scope of the invention that the two brake plates are arranged side by side transversely to the conveying direction on the suction brake table and rotate in opposite directions. The conveying direction here means the transport or conveying direction of the sheets to the stacking device. Conveniently, therefore, one brake disc rotates clockwise and the other brake disc counterclockwise. It is also within the scope of the invention that the two brake plates rotate with respect to their adjacent or in their adjacent plate halves in the conveying direction of the sheets.

Zweckmäßigerweise sind die Saugöffnungen in der Bremstelleroberfläche über den Umfang jedes Bremstellers verteilt angeordnet und zwar bevorzugt regelmäßig verteilt angeordnet. Es liegt im Rahmen der Erfindung, dass die Bremsteller kreisförmig bzw. in der Draufsicht kreisförmig ausgebildet sind. Zweckmäßigerweise sind die Saugöffnungen sowohl in radialer Richtung als auch in Umfangsrichtung in der Bremstelleroberfläche regelmäßig verteilt angeordnet. Die Saugöffnungen weisen dabei nach einer Ausführungsform gleiche konstante Abstände voneinander auf. Es liegt im Rahmen der Erfindung, dass die Bremsteller gleichsam perforiert ausgebildet sind.Expediently, the suction openings are arranged distributed in the brake disc surface over the circumference of each brake disc and preferably arranged distributed regularly. It is within the scope of the invention that the brake plates are circular or circular in plan view. Conveniently, the suction openings are arranged distributed regularly in the Bremstelleroberfläche both in the radial direction and in the circumferential direction. The suction openings have the same constant distances from each other according to an embodiment. It is located in Frame of the invention that the brake plates are formed as it were perforated.

Die Ansaugöffnungen sind in der Saugbremstischoberfläche jeweils unterhalb der Bremsteller angeordnet. Erfindungsgemäß ist eine Ansaugöffnung unter einem Bremsteller kreissektorförmig ausgebildet. Eine Ansaugöffnung hat also zweckmäßigerweise die Form eines Kreissektors bzw. Kreisausschnittes und ist dabei an die Kreisform des Bremstellers, d. h. insbesondere an den Radius des Bremstellers angepasst. Vorzugsweise ist der Radius des Kreissektors einer Ansaugöffnung gleich oder etwas kleiner als der Radius eines kreisförmigen Bremstellers. Eine Ansaugöffnung wird vorzugsweise vollständig von dem zugeordneten Bremsteller abgedeckt. Nach einer Ausführungsform der Erfindung ist eine kreissektorförmige Ansaugöffnung viertelkreisförmig ausgebildet. Der Sektorwinkel α beträgt dann also 90° oder etwa 90°. Nach einer bevorzugten Ausführungsform ist die kreissektorförmige Ansaugöffnung gegenüber einer in Förderrichtung und durch den Kreismittelpunkt eines Bremstellers verlaufenden Geraden um einen Winkel β von 3 bis 45°, bevorzugt von 3 bis 30°, sehr bevorzugt von 3 bis 20° gedreht. Mit anderen Worten schließt die entsprechende Radiale der kreissektorförmigen Ansaugöffnung diesen Winkel β mit der genannten Geraden ein. Nach sehr bevorzugter Ausführungsform der Erfindung sind die Ansaugöffnungen jeweils unterhalb der nebeneinander angeordneten bzw. unterhalb der einander benachbarten Bremstellerhälften angeordnet. Es liegt im Rahmen der Erfindung, dass die Ansaugöffnungen spiegelsymmetrisch bezüglich einer zwischen den beiden Bremstellern gedachten Spiegelebene angeordnet sind.The intake openings are arranged in the Saugbremstischoberfläche each below the brake plates. According to the invention, a suction opening is designed as a sector of a circle under a brake disc. An intake opening thus expediently has the shape of a circular sector or circular cutout and is adapted to the circular shape of the brake disc, ie in particular to the radius of the brake disc. Preferably, the radius of the circular sector of an intake opening is equal to or slightly smaller than the radius of a circular brake actuator. An intake opening is preferably completely covered by the associated brake plate. According to one embodiment of the invention, a circular sector-shaped suction opening is formed in a quarter-circle. The sector angle α is then 90 ° or about 90 °. According to a preferred embodiment, the circular-sector-shaped suction opening is rotated relative to a line running in the conveying direction and through the center of a brake disc by an angle β of 3 to 45 °, preferably 3 to 30 °, very preferably 3 to 20 °. In other words, the corresponding radial of the circular sector-shaped intake opening encloses this angle β with said straight line. According to a very preferred embodiment of the invention, the suction openings are each arranged below the juxtaposed or below the adjacent Bremstellerhälften. It is within the scope of the invention that the Intake openings are arranged mirror-symmetrically with respect to an imaginary between the two brake plates mirror plane.

Es versteht sich, dass zumindest eine Saugvorrichtung vorgesehen ist, mit der Luft durch die Saugöffnungen der Bremsteller und durch die Ansaugöffnungen im Saugbremstisch gesaugt wird. Durch dieses Ansaugen von Luft können über den Bremstisch transportierte Bögen auf funktionssichere und gleichmäßige Weise abgebremst werden. - Es liegt im Übrigen im Rahmen der Erfindung, dass die beiden Bremsteller bzw. die Rotation der beiden Bremsteller synchron angetrieben wird und zwar entweder mit einer oder auch mit zwei oder mehreren Antriebseinrichtungen.It is understood that at least one suction device is provided, with which air is sucked through the suction openings of the brake plates and through the suction openings in the suction brake table. By sucking in air, sheets transported via the brake table can be braked in a functionally reliable and uniform manner. - It is also within the scope of the invention that the two brake plates or the rotation of the two brake plates is driven synchronously, either with one or with two or more drive means.

Vorzugsweise ist die Neigung der Saugbremstischoberfläche in Förderrichtung verstellbar eingerichtet. Insoweit ist die Saugbremstischoberfläche in Förderrichtung schräg nach oben oder in Förderrichtung schräg nach unten zeigend einstellbar.Preferably, the inclination of the Saugbremstischoberfläche is adjusted adjustable in the conveying direction. In that regard, the Saugbremstischoberfläche is in the conveying direction obliquely upward or in the conveying direction obliquely downward pointing adjustable.

Nach sehr bevorzugter Ausführungsform, der im Rahmen der Erfindung ganz besondere Bedeutung zukommt, weist der Saugbremstisch stapelvorrichtungsseitig zumindest eine Luftdüse auf, welche Luftdüse mit der Maßgabe angeordnet ist, dass ein auf der Stapelvorrichtung abzulegender vom Saugbremstisch kommender Bogen von unten mit Blasluft beaufschlagt wird. Mit der Luftdüse wird somit gleichsam Tragluft für einen Bogen erzeugt, welche Tragluft bzw. Blasluft zweckmäßigerweise in Förderrichtung bzw. an der Unterseite eines auf der Stapelvorrichtung abzulegenden Bogens entlang eingeblasen wird. Es liegt im Rahmen der Erfindung, dass die Luftdüse unterhalb der Saugbremstischoberfläche und unterhalb der Bremsteller angeordnet ist. Zweckmäßigerweise ist die Luftdüse als Breitschlitzdüse ausgebildet. Diese Breitschlitzdüse erstreckt sich über mindestens 50 % der Breite b eines in der Stapelvorrichtung abzulegenden Bogens. Es versteht sich, dass zumindest ein entsprechendes Gebläse zur Erzeugung der Blasluft vorgesehen ist.According to a very preferred embodiment, which is of very particular importance within the scope of the invention, the suction brake stacker on the side of at least one air nozzle, which air nozzle is arranged with the proviso that a to be deposited on the stacking device coming from Saugbremstisch bow is acted upon from below with blowing air. With the air nozzle, as it were, carrying air for an arc is generated, which carrying air or blowing air expediently in the conveying direction or at the bottom of a deposited on the stacking device Arch along is blown. It is within the scope of the invention that the air nozzle is arranged below the Saugbremstischoberfläche and below the brake plates. Conveniently, the air nozzle is designed as a slot die. This slot die extends over at least 50% of the width b of a sheet to be deposited in the stacking device. It is understood that at least one corresponding blower is provided for generating the blown air.

Der Erfindung liegt die Erkenntnis zugrunde, dass mit der erfindungsgemäßen Ablagevorrichtung ein sehr funktionssicheres und effektives Abbremsen der von der Zuführungseinrichtung kommenden Bögen möglich ist und dass anschließend eine ebenso funktionssichere und gleichmäßige Ablage der Bögen auf der Stapelvorrichtung möglich ist. Hervorzuheben ist, dass die Ablagevorrichtung störungsfrei arbeitet und vor allem Qualitätsbeeinträchtigungen der abgelegten Bögen, wie beispielsweise Risse, Wellen oder Knickstellen vermieden werden können. Zu betonen ist weiterhin, dass sich die erfindungsgemäße Ablagevorrichtung durch einen relativ einfachen Aufbau auszeichnet und somit auch kostengünstig herstellbar ist. Im Vergleich zu den eingangs beschriebenen aus dem Stand der Technik bekannten Maßnahmen zeichnet sich die erfindungsgemäße Ablagevorrichtung dadurch aus, dass auf die über den Saugbremstisch geführten Bögen keine nennenswerten störenden Querkräfte ausgeübt werden.The invention is based on the finding that with the storage device according to the invention a very reliable and effective braking of coming from the feeder sheets is possible and that subsequently a functionally reliable and uniform storage of the sheets on the stacking device is possible. It should be emphasized that the storage device works trouble-free and above all quality impairments of the stored sheets, such as cracks, waves or kinks can be avoided. To emphasize is further that the storage device according to the invention is characterized by a relatively simple structure and thus can be produced inexpensively. Compared to the measures known from the prior art described above, the storage device according to the invention is characterized in that no significant disturbing transverse forces are exerted on the guided over the Saugbremstisch sheets.

Nachfolgend wird die Erfindung anhand einer lediglich ein Ausführungsbeispiel darstellenden Zeichnung näher erläutert. Es zeigen in schematischer Darstellung:

Fig. 1
eine erfindungsgemäße Ablagevorrichtung im Schnitt,
Fig. 2
eine Draufsicht auf den Gegenstand gemäß Fig. 1 und
Fig. 3
ein vergrößerter Ausschnitt aus der Fig. 1.
The invention will be explained in more detail with reference to a drawing showing only one exemplary embodiment. In a schematic representation:
Fig. 1
a storage device according to the invention in section,
Fig. 2
a plan view of the article according to Fig. 1 and
Fig. 3
an enlarged section of the Fig. 1 ,

Die Figuren zeigen eine erfindungsgemäße Ablagevorrichtung für geschnittene flächige Erzeugnisse und zwar im Ausführungsbeispiel für mit einem nicht dargestellten Rotationsquerschneider geschnittene Bögen 1. Zunächst ist eine Zuführungseinrichtung 2 für die Bögen 1 vorgesehen, die eine Rillenwalze 3 aufweist, die aus einer Mehrzahl von mit Abstand zueinander angeordneten Walzenabschnitten 4 besteht. Die Walzenabschnitte 4 sitzen drehfest auf einer angetriebenen Welle. Außerdem weist die Zuführungseinrichtung 2 Andrückrollen 5 auf, die mit den Walzenabschnitten 4 wechselwirken bzw. die auf die Walzenabschnitte 4 drücken. Zwischen den Walzenabschnitten 4 und den Andrückrollen 5 werden die Bögen 1 durchgeführt. In der Zuführungseinrichtung 2 erfolgt im Vergleich zu der bisherigen Fördergeschwindigkeit der Bögen 1 eine Beschleunigung der Bögen. Zwischen den Walzenabschnitten 4 sind Blasdüsen 6 mit der Maßgabe angeordnet, dass ein durch die Zuführungseinrichtung 2 geförderter Bogen 1 mit Hilfe der Blasdüsen 6 von unten mit Blasluft beaufschlagt wird. Das ist in der Fig. 1 durch einen Pfeil veranschaulicht worden.The figures show a storage device according to the invention for cut flat products, namely in the embodiment for cut with a rotary cross cutter not shown sheets 1. First, a feed device 2 is provided for the sheets 1, which has a grooved roll 3, which consists of a plurality of spaced apart Roller sections 4 consists. The roller sections 4 are non-rotatably mounted on a driven shaft. In addition, the feeding device 2 has pressure rollers 5, which interact with the roller sections 4 or which press on the roller sections 4. Between the roller sections 4 and the pressure rollers 5, the sheets 1 are performed. In the feeding device 2 takes place in comparison to the previous conveying speed of the sheets 1, an acceleration of the sheets. Between the roller sections 4 tuyeres 6 are arranged with the proviso that a funded by the feeder 2 sheet 1 by means of the tuyeres 6 of is subjected to blowing air at the bottom. That is in the Fig. 1 been illustrated by an arrow.

Die Ablagevorrichtung weist fernerhin einen Saugbremstisch 7 zum Abbremsen der zugeführten Bögen 1 auf. Auf dem Saugbremstisch 7 sind zwei rotierende Bremsteller 8, 9 angeordnet, die vorzugsweise und im Ausführungsbeispiel mit ihrer Bremstelleroberfläche parallel zur Saugbremstischoberfläche angeordnet sind. Jeder Bremsteller 8, 9 weist eine Vielzahl von Saugöffnungen 10 auf. Unterhalb jedes Bremstellers 8, 9 ist im Ausführungsbeispiel eine Ansaugöffnung 11, 12 zum Ansaugen von Luft vorgesehen. Die beiden Bremsteller 8, 9 sind quer zur Förderrichtung der Bögen 1 nebeneinander auf dem Saugbremstisch 7 angeordnet und rotieren gegensinnig. Das heißt der eine Bremsteller 8 rotiert im Uhrzeigersinn während der andere Bremsteller 9 im Gegenuhrzeigersinn rotiert. Zweckmäßigerweise und im Ausführungsbeispiel rotieren die beiden Bremsteller 8, 9 bezüglich ihrer nebeneinander liegenden bzw. in den einander benachbarten Tellerhälften 13, 14 in Förderrichtung der Bögen 1.The storage device furthermore has a suction brake table 7 for braking the supplied sheets 1. On the Saugbremstisch 7 two rotating brake plates 8, 9 are arranged, which are preferably arranged in the embodiment with its Bremstelleroberfläche parallel to the Saugbremstischoberfläche. Each brake plate 8, 9 has a plurality of suction openings 10. Below each brake actuator 8, 9, an intake opening 11, 12 is provided for sucking air in the embodiment. The two brake plates 8, 9 are arranged transversely to the conveying direction of the sheets 1 side by side on the suction brake table 7 and rotate in opposite directions. That is, one brake disc 8 rotates clockwise while the other brake disc 9 rotates counterclockwise. Conveniently and in the exemplary embodiment, the two brake plates 8, 9 rotate with respect to their side by side or in the adjacent plate halves 13, 14 in the conveying direction of the sheets. 1

In der Fig. 2 ist außerdem erkennbar, dass die Saugöffnungen 10 regelmäßig über den Umfang eines kreisförmigen Bremstellers 8, 9 verteilt angeordnet sind. Außerdem sind diese Saugöffnungen 10 auch in radialer Richtung eines Bremstellers 8, 9 regelmäßig verteilt angeordnet.In the Fig. 2 It can also be seen that the suction openings 10 are regularly distributed over the circumference of a circular brake actuator 8, 9. In addition, these suction openings 10 are arranged distributed regularly in the radial direction of a brake actuator 8, 9.

Nach sehr bevorzugter Ausführungsform und im Ausführungsbeispiel ist jede Ansaugöffnung 11, 12 kreissektorförmig ausgebildet. Insoweit sind die Ansaugöffnungen 11, 12 an die Kreisform des zugeordneten Bremstellers 8, 9 angepasst. Jede Ansaugöffnung 11, 12 wird im Übrigen vollständig von dem zugeordneten Bremsteller 8, 9 abgedeckt. Der Kreissektor (Kreisausschnitt) jeder Ansaugöffnung 11, 12 lässt sich durch den Sektorwinkel α beschreiben. Der Sektorwinkel α beträgt im Ausführungsbeispiel 105°, so dass der Kreissektor jeder Ansaugöffnung 11, 12 etwas größer als viertelkreisförmig ausgebildet ist. Vorzugsweise und im Ausführungsbeispiel schließt die Radiale 15 des Kreissektors einer der Ansaugöffnungen 11, 12 mit einer in Förderrichtung und durch den Kreismittelpunkt 16 eines Bremstellers 8, 9 verlaufenden Geraden 17 einen Winkel β ein, der im Ausführungsbeispiel ca. 5° beträgt. In Fig. 2 ist im Übrigen erkennbar, dass die Ansaugöffnungen 11, 12 jeweils unterhalb der nebeneinander angeordneten bzw. einander benachbarten Bremstellerhälften 13, 14 angeordnet sind. Im Übrigen sind die Ansaugöffnungen 11, 12 spiegelsymmetrisch bezüglich einer Spiegelebene S angeordnet.After a very preferred embodiment and in the embodiment, each suction port 11, 12 is formed circular-sector-shaped. In that regard, the suction openings 11, 12 at the circular shape of the associated brake actuator 8, 9 adjusted. Incidentally, each intake opening 11, 12 is completely covered by the associated brake plate 8, 9. The circular sector (circular section) of each intake opening 11, 12 can be described by the sector angle α. The sector angle α is in the exemplary embodiment 105 °, so that the circular sector of each suction port 11, 12 is slightly larger than a quarter circle. Preferably, and in the exemplary embodiment, the radial 15 of the circular sector of one of the intake ports 11, 12 with an extending in the conveying direction and through the circle center 16 of a brake disc 8, 9 straight line 17 an angle β, which is about 5 ° in the embodiment. In Fig. 2 Incidentally, it can be seen that the intake openings 11, 12 are respectively arranged below the adjacently arranged or mutually adjacent brake plate halves 13, 14. Incidentally, the suction openings 11, 12 are arranged mirror-symmetrically with respect to a mirror plane S.

Es versteht sich, dass die Ansaugöffnungen 11, 12 an zumindest eine in den Figuren nicht dargestellte Saugvorrichtung angeschlossen sind und mit Hilfe dieser Saugvorrichtung Luft durch die Saugöffnungen 10 der Bremsteller 8, 9 und durch die Ansaugöffnungen 11, 12 angesaugt wird. Auf diese Weise erfolgt ein effektives Abbremsen der Bögen 1 auf dem Saugbremstisch 7.It is understood that the suction openings 11, 12 are connected to at least one suction device not shown in the figures and with the aid of this suction device air is sucked through the suction openings 10 of the brake plates 8, 9 and through the suction openings 11, 12. In this way, an effective braking of the sheets 1 takes place on the Saugbremstisch. 7

Nach sehr bevorzugter Ausführungsform, der im Rahmen der Erfindung ganz besondere Bedeutung zukommt, weist der Saugbremstisch 7 stapelvorrichtungsseitig eine Luftdüse 18 auf, welche Luftdüse 18 einen auf der Stapelvorrichtung 19 abzulegenden Bogen 1 von unten mit Blasluft beaufschlagt. Die Blasluft wird in Förderrichtung der Bögen 1 eingeblasen und funktioniert gleichsam als Tragluft für die Bögen 1. Die Luftdüse 18 ist vorzugsweise und im Ausführungsbeispiel als Breitschlitzdüse ausgebildet. Diese Breitschlitzdüse erstreckt sich über zumindest 50 % der Breite b eines abzulegenden Bogens 1. Es versteht sich, dass zumindest ein nicht dargestelltes Gebläse zur Erzeugung dieser Blasluft bzw. Tragluft vorgesehen ist. In der Fig. 1 ist im Übrigen erkennbar, dass die Bögen 1 auf einer Palette 20 der Stapelvorrichtung 19 abgelegt bzw. gestapelt werden.According to a very preferred embodiment, which is of very particular significance within the scope of the invention, the suction brake table 7 has an air nozzle 18 on the stacking device side, which air nozzle 18 has an air jet 18 on the stacking device 19 to be deposited sheet 1 from below with blowing air. The blown air is blown in the conveying direction of the sheets 1 and works as it were as carrying air for the sheets 1. The air nozzle 18 is preferably formed and in the embodiment as a slot die. This slot die extends over at least 50% of the width b of a sheet 1 to be deposited. It is understood that at least one blower (not shown) is provided for producing this blown air or carrying air. In the Fig. 1 Incidentally, it can be seen that the sheets 1 are deposited or stacked on a pallet 20 of the stacking device 19.

Claims (9)

  1. A depositing device for cut flat products, in particular for sheets (1) cut with a rotary cutter; comprising a feeding device (2) for the cut sheets (1), a suction brake table (7) for the braking of a fed sheet (1) and a stacking device (19) downstream of the suction brake table (7), to stack the sheets (1), characterised in that at least two rotating brake plates (8, 9) lie on the suction brake table (7), whose brake plate surface is arranged parallel to the suction brake table surface,
    the brake plates (8, 9) each have a plurality of suction holes (10) and
    the suction brake table (7) has beneath each brake plate (8, 9) at least one circular-sector-shaped extraction hole (10, 12) for the extraction of air.
  2. The depositing device according to claim 1, wherein the feeding device (2) has a grooved roller (3), which consists of a plurality of roller sections (4), arranged at a distance from each other, and also comprises press rollers (5), which cooperate with the roller sections (4).
  3. The depositing device according to claim 2, wherein blast nozzles (6) are arranged between the roller sections (4) with the proviso that a sheet (1) conveyed through the feeding device (2) is blasted with air from below.
  4. The depositing device according to any of the claims 1 to 3, wherein both brake plates (8, 9) are arranged side-by-side on the suction brake table (7), transversely to the direction of conveyance of the sheets (1) and rotate in opposite directions.
  5. The depositing device according to claim 4, wherein both brake plates (8, 9) rotate in their adjacent halves (13, 14) in the direction of conveyance of the sheets (1).
  6. The depositing device according to any of claims 1 to 5, wherein the suction holes (10) are uniformly distributed over the perimeter of each brake plate (8, 9).
  7. The depositing device according to any of claims 1 to 6, wherein the suction holes (11, 12) are each arranged beneath the adjacent halves of the brake plates (13, 14).
  8. The depositing device according to any of claims 1 to 7, wherein the suction brake table (7) has at least one air nozzle (18) on the side of the stacking device, which air nozzle (18) blasts air from below a sheet (1), which is to be deposited on the stacking device (19).
  9. The depositing device according to claim 8, wherein the air nozzle (18) is constructed as a wide slotted nozzle.
EP03010464A 2003-05-09 2003-05-09 Delivery device for flat cut articles, in particular for sheets cut with a rotary cross cutter Expired - Lifetime EP1475328B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
AT03010464T ATE414664T1 (en) 2003-05-09 2003-05-09 STORAGE DEVICE FOR CUT FLAT PRODUCTS, IN PARTICULAR FOR SHEETS CUT WITH A ROTARY CUTTER
DE50310804T DE50310804D1 (en) 2003-05-09 2003-05-09 Storage device for cut flat products, in particular for sheets cut with a rotary cross cutter
EP03010464A EP1475328B1 (en) 2003-05-09 2003-05-09 Delivery device for flat cut articles, in particular for sheets cut with a rotary cross cutter
PL367752A PL206562B1 (en) 2003-05-09 2004-05-06 Attachment designed to put flat products aside after cutting, particularly sheets cut with circular cutter
US10/842,709 US6962334B2 (en) 2003-05-09 2004-05-07 Delivery apparatus for flat articles, especially rotary cut sheets

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03010464A EP1475328B1 (en) 2003-05-09 2003-05-09 Delivery device for flat cut articles, in particular for sheets cut with a rotary cross cutter

Publications (3)

Publication Number Publication Date
EP1475328A1 EP1475328A1 (en) 2004-11-10
EP1475328A9 EP1475328A9 (en) 2005-01-26
EP1475328B1 true EP1475328B1 (en) 2008-11-19

Family

ID=32981853

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03010464A Expired - Lifetime EP1475328B1 (en) 2003-05-09 2003-05-09 Delivery device for flat cut articles, in particular for sheets cut with a rotary cross cutter

Country Status (5)

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US (1) US6962334B2 (en)
EP (1) EP1475328B1 (en)
AT (1) ATE414664T1 (en)
DE (1) DE50310804D1 (en)
PL (1) PL206562B1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006002029A1 (en) * 2006-01-13 2007-07-19 Bielomatik Jagenberg Gmbh + Co. Kg Braking device for stopping stacking of paper or cardboard sheets comprises clamping elements with annular clamping zones on a part of the periphery and a deviating unit arranged in the running direction of the sheets
DE102009031117B3 (en) * 2009-06-30 2011-02-10 Eastman Kodak Company Apparatus and method for the stacked storage of sheet-shaped substrates
JP5786829B2 (en) * 2012-08-31 2015-09-30 株式会社リコー Paper discharge device, paper processing device, and image forming system
JP5790626B2 (en) * 2012-11-28 2015-10-07 株式会社リコー Paper stacking apparatus and image forming system
CN105538397B (en) * 2016-01-27 2017-04-05 浙江豪盛印刷机械有限公司 A kind of reducing gear of cutting machine
FI128787B (en) * 2019-08-27 2020-12-15 24 Pesula Oy Washing unit, planar washing machine and method

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Publication number Priority date Publication date Assignee Title
DE2453753C3 (en) * 1974-11-13 1982-05-27 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Sheet brake
DE2930088A1 (en) * 1979-07-25 1981-04-02 Mabeg Maschinenbau Gmbh Nachf. Hense & Pleines Gmbh & Co, 6050 Offenbach Sheet conveying method from storage to processing machine - has sheets first driven, then braked and finally accelerated for last conveyor stage
JPS5953356A (en) * 1982-09-22 1984-03-28 Toshiba Corp Sheet retriever
EP0328707B1 (en) * 1988-02-18 1991-12-27 Mitsubishi Jukogyo Kabushiki Kaisha Conveying and stacking apparatus for sheets
JPH02178156A (en) * 1988-12-28 1990-07-11 Toray Ind Inc Unwrinkling method and device for web
DE8907553U1 (en) * 1989-06-21 1989-07-27 Vits Maschinenbau Gmbh, 4018 Langenfeld Sheet storage for rotary cross cutters
DE19543963C1 (en) * 1995-11-25 1997-04-24 Roland Man Druckmasch Sheet delivery device for a printing machine
US5882175A (en) * 1997-01-13 1999-03-16 Ward Holding Company Stacker for flexible sheets

Also Published As

Publication number Publication date
PL206562B1 (en) 2010-08-31
EP1475328A1 (en) 2004-11-10
US20040251604A1 (en) 2004-12-16
DE50310804D1 (en) 2009-01-02
EP1475328A9 (en) 2005-01-26
PL367752A1 (en) 2004-11-15
US6962334B2 (en) 2005-11-08
ATE414664T1 (en) 2008-12-15

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