EP1345835B1 - Vorrichtung zum schwebenden führen von bahn- oder bogenmaterial in einer verarbeitungsmaschine - Google Patents

Vorrichtung zum schwebenden führen von bahn- oder bogenmaterial in einer verarbeitungsmaschine Download PDF

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Publication number
EP1345835B1
EP1345835B1 EP01986860A EP01986860A EP1345835B1 EP 1345835 B1 EP1345835 B1 EP 1345835B1 EP 01986860 A EP01986860 A EP 01986860A EP 01986860 A EP01986860 A EP 01986860A EP 1345835 B1 EP1345835 B1 EP 1345835B1
Authority
EP
European Patent Office
Prior art keywords
guide
nozzles
conveying direction
zone
guide surface
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
EP01986860A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1345835A2 (de
Inventor
Roland Kins
Frank Seidel
Steffen Flotow
Peter Dr. Wulf
Vitt Van Der Kley
Udo Trillig
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.)
Manroland AG
Original Assignee
MAN Roland Druckmaschinen AG
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 MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Publication of EP1345835A2 publication Critical patent/EP1345835A2/de
Application granted granted Critical
Publication of EP1345835B1 publication Critical patent/EP1345835B1/de
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
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/24—Registering, tensioning, smoothing or guiding webs longitudinally by fluid action, e.g. to retard the running web
    • 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
    • B65H5/22—Feeding articles separated from piles; Feeding articles to machines by air-blast or suction device
    • B65H5/228—Feeding articles separated from piles; Feeding articles to machines by air-blast or suction device by air-blast devices
    • 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
    • B65H2406/11—Means using fluid made only for exhausting gaseous medium producing fluidised bed
    • B65H2406/112—Means using fluid made only for exhausting gaseous medium producing fluidised bed for handling material along preferably rectilinear path, e.g. nozzle bed for web

Definitions

  • the invention relates to a device for the floating guiding of sheet or sheet material in a processing machine according to the preamble of claim 1.
  • This device is particularly suitable for contactless sheet guiding and sheet conveying in a printing machine.
  • a known device of this type describes DE-OS 19 07 083 with a blow box with a guide surface and a plurality of distributed blowing openings, each having a lowered into the blow box inclined guide surface.
  • the nozzles have a tongue and the radial edges of the guide surface enclose an angle between 120 ° and 180 °. This produces a wide-spread ray, not a directional ray, with a flat effect.
  • all nozzles are arranged in the same direction. As a result, only in one direction a hardly firming effect can be achieved, which is disadvantageous especially for thin sheet materials, as these tend to flutter easily.
  • DE 28 02 610 A1 shows nozzles whose side surfaces are parallel to the inclined guide surface and provided with lowered tongue. These nozzles are arranged close to each other on blow boxes and it is described a guide surface, which consists of several blow boxes and are arranged above and below the printing material to be led. In a further development, the nozzles are associated with a perforation, which is intended as an additional blowing agent to prevent the contact of the processing material with the blow box (guide surface).
  • a device for the floating guiding of web or sheet material along a conveying path in a conveying direction with a plurality of nozzles incorporated in a guide surface is known. Over its width, the guide surface is divided into at least three zones, a symmetrical to the axis of symmetry stabilization zone with blowing against the direction of flow nozzles and two adjoining the stabilization zone, the guide surface limiting, tightening zones.
  • the nozzles form longitudinal and transverse to the conveying direction extending nozzle rows.
  • the nozzles blow against the conveying direction and away from the axis of symmetry, wherein the nozzles with the blowing directions alternately enclose an angle of 100 ° to 120 ° and 160 ° to 170 °.
  • the device has a guide surface with air-jet nozzles whose common flow pattern forming when guiding the sheet material is formed by a first velocity component in the conveying direction of the sheet material and by a second and a third velocity component in the direction of the respective side edges.
  • the invention has for its object to provide a device of the type mentioned, which avoids the disadvantages mentioned, which in particular allows a uniformly distributed pressure build-up for floating sheet or sheet material along a guide surface and noticeably reduces the risk of fouling.
  • the device for floating guidance starts from a guide surface on which the web or sheet material is guided in a conveying direction along contactless means of an air cushion.
  • the air cushion is fed by nozzles that operate on the aerodynamic paradox, after which the web or sheet material is simultaneously carried (overpressure area) and sucked in (negative pressure area).
  • the guide surface is closed in itself and has a plurality of incorporated nozzles according to a predetermined distribution, which Air acted upon, preferably identical, nozzles are formed.
  • a first advantage is based on the fact that - with respect to a single guide surface - the alignment of the nozzles with their blowing openings (Blasmaul) at the beginning of the guide surface with a component against the conveying direction of the web or sheet material is arranged and then in the conveying direction continuously to both side edges (the guide surface) is arranged temporarily.
  • This orientation of the blowing openings of the nozzles Blas Kunststoffströmungen be generated, which - based on the direction of conveyance in the direction of symmetry of the guide surface - starting from an orientation substantially against the conveying direction symmetrically fanned out in an outward direction in the direction of both side edges of the guide surface to transverse (approximately at right angles) to the conveying direction can be realized.
  • the inclination of the blowing openings of the nozzles in the conveying direction thus increases until they are directed laterally with respect to the conveying direction.
  • the at least over the maximum format width of the web or sheet material extending guide surface in the conveying direction of the web or sheet material has three guide zones I to III (per guide surface).
  • a single guide surface in one piece or modular executable from several parts.
  • Such a guide surface is operatively connected to at least one flow channel coupled to at least one pneumatic system. From one or more flow channel / flow channels blowing air to the blowing holes each Nozzle supplied and distributed over the blow holes to form the air cushion.
  • the nozzles are preferably arranged with different nozzle density (number of nozzles per unit area) on a single guide surface.
  • the upstream in the conveying direction of the web or sheet material guide zone I and the downstream guide zone III preferably have a larger nozzle density (number of nozzles per unit area), as arranged between the two guide zones I and III guide zone II.
  • the larger nozzle density is preferably always arranged in the end regions (initial region: guide zone I or end region: guide zone III) of a guide surface.
  • adjacent assigned as a reinforced air cushion can be achieved by a larger nozzle density and thus the Abschmiergefahr is noticeably reduced.
  • the guide surface in the guide zone I in comparison to the guide surface III, the larger nozzle density.
  • disturbances in the guidance of the web or sheet material can be avoided, resulting from upstream facilities, such as a transfer area.
  • the nozzles aligned in this way with their blowing openings always blow in between (nozzle-free) areas (the closed guide surface) of two upstream nozzles with blowing air flows emerging from the blowing openings.
  • the air flow is preferred a downstream nozzle directed centrally into the space of two adjacent upstream nozzles.
  • a sheet-fed rotary printing press consists, for example, of several printing units 1 and a coating unit 8, which are arranged in series in the conveying direction 12 of the sheet material.
  • the coating unit 8 is in the conveying direction 12, a boom 9 with rotating conveyor system 14, which transports the sheet material in the gripper closure on a delivery pile and deposits there, downstream.
  • Each printing unit 1 consists of a plate cylinder 2, a blanket cylinder 3 and a sheet guiding cylinder 4.
  • Each plate cylinder 2 is associated with an inking unit and possibly a dampening unit.
  • the coating unit 8 has a metering system 7 which is in functional connection with a forme cylinder 6.
  • the form cylinder 6 is in turn assigned a sheet guiding cylinder 4.
  • the sheet guiding cylinders 4, 5 and the conveyor systems 14 have circumferentially arranged sheet holding systems, preferably gripper systems, for the sheet transport.
  • a transfer cylinder or turning drum sheet guiding cylinders 5 and the conveyor systems 14 are a plurality of fixed, a continuous guide surface 13 forming sheet guiding 11 for contactless floating guidance of sheet material in a defined distance to the sheet guiding cylinder 5 and the conveyor systems 14 adjacent assigned.
  • a single guide surface 13 in the conveying direction 12 by a first transfer area 10 and a second transfer area 10 for example, sheet holding systems of the sheet guiding cylinder 4.5, limited in assignment to a sheet guiding cylinder 5.
  • a single guide surface 13 in the conveying direction 12 by a first transfer area 10 for example, a sheet holding system of the sheet guiding cylinder 4 and a sheet holding system of the conveyor system 14, and arranged in the boom 9 sheet braking device limited.
  • Fig. 2 is a device for floating guiding of
  • sheet material shown which is to be explained in more detail on a sheet guiding cylinder 5, especially a transfer cylinder, each with a forward and downstream sheet guiding cylinder 4, especially a printing cylinder.
  • the transfer region 10 of two sheet holding systems is arranged in the respective tangent point.
  • the sheet material is transferred from a sheet holding system to a second sheet holding system.
  • a sheet outlet 17 is arranged downstream of the first transfer area 10, and in the conveying direction 12, the sheet outlet 17 is followed by a sheet exit 18 with a subsequent second transfer area 10.
  • two sheet guiding devices 11, with respect to an axis of symmetry 22, are arranged in mirror image to one another in a modular manner (butt joint assembly) and jointly form the uniform guide surface 13.
  • Each sheet guiding device 11 is formed as a box-shaped pneumatically acted first flow channel and has a portion of the guide surface 13 with nozzles 23 for the discharge of blowing air on the blow-suction or Venturi principle (aerodynamic paradox) on.
  • Each sheet guiding device 11 is for this purpose a first pneumatic system 15, preferably associated with at least one fan, which is in functional connection with the first flow channel of the sheet guiding device 11 and the air supply of the sheet guiding device 11 realized.
  • Each sheet guiding device 11 is below the sheet guiding cylinder at a defined distance from the latter Circumference arranged to ensure a contactless floating bowing.
  • the comb plate 16 mechanically or pneumatically supports the sheet guide in the sheet outlet 17th
  • a second flow channel 20, which is in functional connection with the second pneumatic system 19, is arranged beneath the sheet guiding device 11 (first flow channel).
  • the second pneumatic system 19 is arranged on the rear side of the second flow channel 20 and supplies the flow channel 20 with air via an opening, so that a flow of lower blowing pressure and high volume flow emerges at an outflow opening 21.
  • the second flow channel 20 at least one, preferably a plurality of over the maximum format width reaching, outflow openings 21 for the blowing air, which are directed towards the transfer area 10 against the arc bottom in the sheet outlet 17.
  • the arch entrance 18 is a mirror image of the symmetry axis 22 below the downstream transfer area 10 as well a second, separately controllable pneumatic system 19 arranged fixed to the frame, which is preferably formed by multiple fans and analogous to the sheet outlet 17 a Blas Kunststoffströmung with low blowing pressure and high flow against the Bottom of the sheet towards the transfer area 10 generated.
  • a second flow channel 20 is arranged analogously to the sheet outlet 17 below the sheet guide 11 which is in functional connection with the second pneumatic system 19.
  • the second Pneumatic system 19 is arranged at the rear side of the second flow channel 20 and supplies the flow channel 20 with air via an opening, so that at a discharge opening 21 there is a flow of low blowing pressure and high volume flow, which is directed essentially in the direction of the transfer region 10 and thus on the underside of the arc is leaving.
  • the second flow channel 20 at least one, preferably a plurality of over the maximum format width reaching outflow opening 21 for the blowing air, which are directed in the direction of transfer area 10 against the arc bottom in the sheet entrance 18.
  • FIGS. 3 to 8 Deposits of a self-contained guide surface 13 are shown in FIGS. 3 to 8 and the nozzles 23 are arranged distributed over the width and over the length of the guide surface 13 (in the conveying direction 12).
  • each guide surface 13 on a first guide zone I in which the below the plane of the guide surface 13 lying blow openings 24 (Blasmaul) of the nozzles 23 at the beginning of the guide surface 13 with a component against the conveying direction 12 of Bow material are directed.
  • the guide zone I is formed by at least two rows of nozzles 23. In this case, in particular in the first row, an arrangement of the blowing openings 24 directed against the conveying direction 12 or obliquely to the conveying direction 12 is advantageous in order to avoid smearing.
  • a second guide zone II are arranged in the blow holes 24 of the nozzles 23 of substantially against the conveying direction 12 directed blowing openings 24 in both sides directed to the side edges 25 blowing openings 24.
  • the blowing openings 24 are preferably arranged in mirror image.
  • the nozzles 23 are preferably arranged on curved, spaced-apart tracks 27, of which at least one point of intersection lies on the symmetry line 26. Preferably, the intersection point is directed against the conveying direction 12.
  • the second guide zone II follows in the conveying direction 12 a third guide zone III in which the blowing openings 24 of the nozzles 23 are directed substantially perpendicularly (transversely) to the conveying direction 12 in the direction of both side edges 25 of the guide surface 13.
  • This guide zone III is formed by at least two rows of nozzles 23.
  • the inclination of the nozzles 23, starting from an arrangement approximately counter to the conveying direction 12 towards an arrangement transverse to the conveying direction 12, increases by a defined amount to.
  • the guide surface 13 in the conveying direction 12 in the first and the third guide zone I, III each have a larger nozzle density and in the interposed second guide zone II a lower nozzle density.
  • the nozzle density in the conveying direction 12 and transversely to the conveying direction 12 is variably executable.
  • the arrangement of the nozzles 23 proceeds continuously from the guide zone I to the guide zone III.
  • all nozzles 23 with blowing openings 24 on the guide surface 13 are preferably arranged in mirror image from the guide zone I to the guide zone III.
  • the guide zone II in the conveying direction 12 of the sheet material is preferably the largest in terms of length.
  • the nozzles 23 are preferably arranged in the guide zones I-III of a guide surface 13 such that the blowing flow of a downstream nozzle 23 is always directed into the free space (part of the closed guide surface 13) of two upstream adjacent nozzles 23.
  • the blast flow of the downstream nozzle 23 is directed centrally into the free space of the two upstream nozzles 23.
  • the nozzles 23 arranged in mirror image to the symmetry line 26 extend on curved, spaced tracks 27. At least one point of intersection of the mirror-image arranged tracks 27 lies on the line of symmetry 26. Preferably, the intersection of two tracks 27 against the conveying direction 12 directed.
  • the design of the apparatus for the floating guiding of web or sheet material is not limited to at least one sheet guiding device 11 with a guide surface 13. Rather, several pneumatically actuated, with a plurality of flow channels coupled sheet guiding devices 11 in modular design as a guide surface 13 executable. Furthermore, the guide surface 13 is not limited to an assignment to at least one sheet guiding cylinder 5. In addition, a guide surface 13 in the boom of a sheet material processing machine can be arranged. Likewise, such a guide surface 13 can be used in web material processing machines, for example in a dryer section of a web printing press.
  • the arranged on the guide surface 13 nozzles 23 are preferably embodiments of FIG. 9 and 10th
  • a nozzle 23 which, in the rear region, has a planar depression 28 recessed to the guide surface 13, which ends at an edge 29 and merges into the guide surface 13.
  • a first blow opening 24.1 and a second blow opening 24.2 are arranged, which are effective as a separate blowing openings 24 by a vertical separation point 30.
  • Adjoining the blow openings 24.1, 24.2 is a guide surface 31, which leads obliquely into the guide surface 13 and which is formed by flanks 32, 33 as laterally closed side surfaces which merge into the guide surface 13.
  • a nozzle 23 is shown, which in the rear region has a recessed area 28 recessed to the guide surface 13, which ends at an edge 29 and merges into the guide surface 13.
  • the depression 28 furthermore has at least one second edge 34, which faces away from the first edge 29 and delimits the depression 28.
  • the reduction 28 has a third edge 35.
  • Below the first edge 29 is a blow opening 24 for the front area (largest blowing force) arranged and below the second and third edge 34,35 is a respective blow opening 36 (for the edge 34) and a blow opening (not visible) for the edge 35 is arranged.
  • the blowing openings 24, 36 and the non-visible blow opening at the edge 35 are inclined in the guide surface 13 merging guide surfaces 31, which are bounded by flanks 32,33 as laterally closed side surfaces.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Advancing Webs (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Chain Conveyers (AREA)
EP01986860A 2000-12-22 2001-12-11 Vorrichtung zum schwebenden führen von bahn- oder bogenmaterial in einer verarbeitungsmaschine Expired - Lifetime EP1345835B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10064531 2000-12-22
DE10064531A DE10064531C2 (de) 2000-12-22 2000-12-22 Vorrichtung zum schwebenden Führen von Bahn- oder Bogenmaterial in einer Verarbeitungsmaschine
PCT/EP2001/014504 WO2002051732A2 (de) 2000-12-22 2001-12-11 Vorrichtung zum schwebenden führen von bahn- oder bogenmaterial in einer verarbeitungsmaschine

Publications (2)

Publication Number Publication Date
EP1345835A2 EP1345835A2 (de) 2003-09-24
EP1345835B1 true EP1345835B1 (de) 2006-03-22

Family

ID=7668632

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01986860A Expired - Lifetime EP1345835B1 (de) 2000-12-22 2001-12-11 Vorrichtung zum schwebenden führen von bahn- oder bogenmaterial in einer verarbeitungsmaschine

Country Status (8)

Country Link
EP (1) EP1345835B1 (zh)
JP (1) JP3703803B2 (zh)
CN (1) CN1258472C (zh)
AT (1) ATE320999T1 (zh)
AU (1) AU2002238417A1 (zh)
CZ (1) CZ20031726A3 (zh)
DE (2) DE10064531C2 (zh)
WO (1) WO2002051732A2 (zh)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004062571A1 (de) * 2004-12-24 2006-07-06 Koenig & Bauer Ag Vorrichtung zur Luftpolsterführung
US7311234B2 (en) * 2005-06-06 2007-12-25 The Procter & Gamble Company Vectored air web handling apparatus
DE102006012505A1 (de) * 2006-03-18 2007-09-20 Man Roland Druckmaschinen Ag Leiteinrichtung für Bogenmaterial in einer Verarbeitungsmaschine
US8506591B2 (en) 2006-07-01 2013-08-13 Opus Ksd Inc. Tissue fasteners and related insertion devices, mechanisms, and methods
US9232943B2 (en) 2013-01-31 2016-01-12 Opus Ksd Inc. Delivering bioabsorbable fasteners
US9352923B2 (en) * 2014-02-26 2016-05-31 Eastman Kodak Company Air shoe with roller providing lateral constraint
CN107444938A (zh) * 2017-09-01 2017-12-08 南京工业职业技术学院 一种相控气动送料工作台
CN111747185B (zh) * 2020-06-30 2022-04-22 邵东智能制造技术研究院有限公司 绝缘纸下料设备
CN111747184B (zh) * 2020-06-30 2022-04-22 邵东智能制造技术研究院有限公司 绝缘纸下料的浮板装置
DE102022127685A1 (de) 2022-10-20 2024-04-25 Koenig & Bauer Ag Trag- oder Leitvorrichtung

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE197083C (zh) * 1907-03-26
DE2802610C2 (de) * 1978-01-21 1983-05-05 Vits-Maschinenbau Gmbh, 4018 Langenfeld Blaskasten zum schwebenden Führen und/oder Fördern von Bahnen oder Bogen
DE4406847C2 (de) * 1994-03-03 1997-07-10 Koenig & Bauer Albert Ag Vorrichtung zum schwebenden Führen von Bogen oder Bahnen
DE4447963B4 (de) * 1994-08-03 2005-12-29 Heidelberger Druckmaschinen Ag Einrichtung zum berührungsfreien Führen bogenförmigen Materials
DE19545799C1 (de) * 1995-12-08 1997-01-16 Kba Planeta Ag Bogenführungssystem an Bogenführungszylindern in Druckmaschinen
GB9823383D0 (en) * 1998-10-27 1998-12-23 Spooner Ind Ltd Improvements in or relating to web processing

Also Published As

Publication number Publication date
EP1345835A2 (de) 2003-09-24
WO2002051732A2 (de) 2002-07-04
JP3703803B2 (ja) 2005-10-05
CN1258472C (zh) 2006-06-07
DE10064531C2 (de) 2002-11-07
CZ20031726A3 (en) 2004-05-12
JP2004516211A (ja) 2004-06-03
WO2002051732A3 (de) 2002-11-07
DE10064531A1 (de) 2002-07-18
ATE320999T1 (de) 2006-04-15
AU2002238417A1 (en) 2002-07-08
DE50109322D1 (de) 2006-05-11
CN1482989A (zh) 2004-03-17

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