EP1184173B1 - Dispositif de guidage de feuilles - Google Patents

Dispositif de guidage de feuilles Download PDF

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Publication number
EP1184173B1
EP1184173B1 EP01116663A EP01116663A EP1184173B1 EP 1184173 B1 EP1184173 B1 EP 1184173B1 EP 01116663 A EP01116663 A EP 01116663A EP 01116663 A EP01116663 A EP 01116663A EP 1184173 B1 EP1184173 B1 EP 1184173B1
Authority
EP
European Patent Office
Prior art keywords
air
throttle
nozzles
throttled
guide 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
EP01116663A
Other languages
German (de)
English (en)
Other versions
EP1184173A3 (fr
EP1184173A2 (fr
Inventor
Eckart Dr. Frankenberger
Michael Gieser
Christian Görbing
Peter Dr. Hachmann
Karl-Heinz Helmstädter
Christian Hieb
Ruben Dr. Schmitt
Günter Stephan
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.)
Heidelberger Druckmaschinen AG
Original Assignee
Heidelberger 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 Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Publication of EP1184173A2 publication Critical patent/EP1184173A2/fr
Publication of EP1184173A3 publication Critical patent/EP1184173A3/fr
Application granted granted Critical
Publication of EP1184173B1 publication Critical patent/EP1184173B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F21/00—Devices for conveying sheets through printing apparatus or machines
    • 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
    • B65H29/52—Stationary guides or smoothers
    • 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
    • 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
    • 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
    • B65H2406/40—Fluid power drive; Fluid supply elements
    • B65H2406/42—Distribution circuits
    • B65H2406/422—Air throttling devices

Definitions

  • the invention relates to a guide in a printing machine sheet processing machine, with unthrottled air nozzles for contactless guiding of the printing material, according to the preamble of claim 1.
  • a blower nozzle of the second nozzle configuration is preceded by a nozzle body with coiled channels, which is designed as a circular cylindrical bowl with a worm fitted therein. The only coiled and not spirally formed channels cause virtually no throttling of the blowing air.
  • DE-A1-199, 05 095 discloses a guide device according to the preamble of claim 1.
  • the invention is therefore an object of the invention to provide a corresponding guide of the type mentioned, in which ensures a contactless sheet transport even under changing operating conditions and is particularly well suited for conducting freshly printed on both sides of printing material sheets.
  • a blowing force exerted by each of the throttled air nozzles on the printing material sheet increases disproportionately with decreasing distance of the printing material sheet from the respective air nozzles. H. more than linear, too. Thus, it can be generated much more secure at a distance from the guide surface holding air cushion between a provided with the throttled air nozzles guide surface of the guide and the printing material, as is possible with unthrottled air nozzles.
  • the unthrottled air nozzles via a first air line system and the throttled air nozzles via a second air line system can be acted upon with pressure, the pressure of the unthrottled air nozzles is less than the pressure of the throttled air nozzles.
  • each of the throttled air nozzles is connected via an air throttle with an air pressure generator.
  • the air throttle may be integrated into the second air duct system away from the respective throttled air nozzle. This is favorable if an air throttle is provided which is pneumatically connected via the second air line system simultaneously with a plurality of throttled air nozzles.
  • the air throttle and the throttled by the latter air nozzle can also form a structural unit in the form of a throttle nozzle. In the latter case, each of the throttled air nozzles is assigned its own air throttle.
  • the choke piece is a textile layer that may be woven or unwoven.
  • the throttle piece may also be a porous and therefore air-permeable sponge, which is foamed from a plastic.
  • the air throttle is occupied by protruding into the flow path of the blowing air weirs, which limit vortex chambers.
  • the air throttle is designed as a so-called perforated plate labyrinth.
  • FIG. 1 shows a sheet delivery 1 of a printing material sheet 2 processing machine, specifically a sheet-fed rotary printing press 3 with a turning device, which is printed on both sides in one pass on a single pass.
  • the printing material sheet 2 is taken by a circulating around a delivery drum 4 chain conveyor 5 of the sheet delivery 1 from a impression cylinder 6 of an offset printing unit 7 of the sheet-fed rotary printing machine 3 and transported in a gripper bar 8 of the chain conveyor 5 along a guide 9 to a sheet stack 10 and filed on the latter.
  • the guide device 9 extends along a transport path of the printing material sheet 2 below the chain conveyor 5 and has a concave curvature 11 in the region of the delivery drum 4 and a convex curvature 12 in the region of the transition from a rising to a horizontally extending portion of the chain conveyor 5 the chain conveyor 5 facing and the printing material 2 pneumatically conductive guide surface 13.
  • the curvatures 11 and 12 and an end region 14 of the guide surface 13 are their particularly contact-risk points to which the printing material 2 tends to strike the guide surface 13. In order to prevent this striking and thus to ensure a non-contact action of the guide 9 on the printing material 2, special design precautions are provided at the above-mentioned points at risk, which will be explained below.
  • FIG. 2 shows by way of example with reference to the end region 14 that the arrangements consist of a combined arrangement of unthrottled air nozzles 115 and 116 and throttled air nozzles 117, 118 and 119, wherein all the air nozzles 115-118 are introduced into the guide surface 13 and designed as blowing nozzles are.
  • 120 denotes a transport direction of the printing material sheet 2, against which the unthrottled air nozzles 115 and 116 are aligned obliquely in their air jet direction.
  • the throttled air nozzles 117, 118 and 119 are oriented perpendicular relative to the transport direction 120.
  • the throttled air nozzles 117, 118 and 119 which are shown only symbolically in FIG.
  • the unthrottled air nozzles 115 and 116 are connected via a first air line system 121 with a first air pressure generator 122 and the unthrottled air nozzles 117, 118 and 119 are pneumatically connected via a second air line system 123 with a second air pressure generator 124.
  • the motor-driven air pressure generator 122 and 124 are as overpressure generators and z. B. formed as fans.
  • the first air line system 121 includes a first air chamber 125 connected to the first air pressure generator 122, from which the unthrottled air nozzles 115 and 116 branch off.
  • the second air pressure generator 124 generates an air or overpressure p 2 in the second air chamber 126 which is greater than an air or overpressure p 1 generated by the first air pressure generator 122 in the first air chamber 125, by the second air pressure generator 124 a higher speed than the first air pressure generator 122 is running.
  • the air flows through and out of the air nozzles 115 to 119 are symbolized by arrows.
  • FIG. 3 shows a section of the guide 9 containing the throttled air nozzles 117, 118 and 119 in a detailed section, from which it can be seen that the throttled air nozzles 117, 118 and 119 have their throttling air throttles 416 a to c or 516 a to c or 616 a to c or 716 a to c or 816 a to c associated with the second air duct system 123.
  • each of the air throttles 416 a to c or 516 a to c or 616 a to c or 716 a to c or 816 a to c a throttle outlet 17 in a throttle ceiling 18 and a throttle inlet 19 in a throttle bottom 20 on.
  • the throttle cover 18 and the throttle bottom 20 form the upper or lower boundary of a throttle chamber 21 arranged therebetween, through which the blown air generated by the second air pressure generator 124 flows.
  • Figure 4 - is in the air flow path between the throttle inlet 19 and the throttle outlet 17 in the throttle chamber 21, a bed 22 of Schütt Scienceschen, such. As granules, fibers, chips or globules, which is held together on both sides by a network or grid 23. The bulk particles can also be sintered to one another for their stabilization. Between the bulk bodies, the bed has 22 communicating cavities, through which the blowing air flows. The bed 22 fills the cross-section of the throttle chamber 21 completely, so that the entire blown air must flow through the bed 22 and is throttled therein by impoundments on the bulk bodies and turbulence in the cavities.
  • the bed 22 is inserted through an inserted into the throttle chamber 21 textile throttle piece 24 such.
  • the throttle chamber 21 As a fabric or nonwoven fabric replaced.
  • this may consist of a single sufficiently voluminous layer or wound into a multi-layer insert or clamped in the throttle chamber 21.
  • the air flowing through the throttle piece 24 blowing air is throttled by impoundments on threads or fibers and by turbulence in the pores of the throttle piece 24.
  • an air throttle 616 a, b or c is shown, the Air guide walls 25 and 26 in the throttle chamber 21 to each other at an angle, in particular orthogonal, are arranged so that a blow air between the Lucasleit propositionn 25 and 26 from the throttle inlet 19 to Drosselauslass 17 conductive air channel 27 results in the form of a polygonal spiral.
  • the blowing through the air duct 27 blast air accumulates in corner angles 28 and 29 of the air duct 27 and swirls at corner edges 30 and 31 of the air guide walls 25 and 26, so that the air flow is throttled.
  • the air guide walls 25 and 26 have a very strong surface roughness, the z. B. caused by a treatment of the air guide walls 25 and 26 by means of sandblasting and contributes to the reduction of the flow velocity of the blast air in the air channel 27 by increasing the friction.
  • FIGS. 7 a (horizontal section) and 7 b (vertical section) - the throttle chamber 21 is occupied by air buffers 32 and 33 in the form of retaining walls.
  • the Heilwehre 32, 33 are arranged alternately in two rows and each other except for narrow air gaps 34 and 35 overlapping. Between the air forces 32 and 33 are vortex chambers 44 and 45, which together with the air gaps 34 and 35 form a leading from the throttle inlet 19 to the throttle outlet 17 meandering air duct, in which the blowing air is throttled.
  • FIG. 8 shows a section of the air throttle 816 a, b or c, which consists of perforated plates 38 and 39 arranged one above the other in the throttle chamber 21.
  • each has at least one hole 40 (or 41) offset in the plane of the plate from at least one hole 41 (or 40) of the adjacent perforated plate.
  • the meandering air channel forming holes 40 and 41 are out of alignment with each other and in registration with closed plate surfaces of the perforated plates 38 and 39.
  • Spacers 42 and 43 keep the perforated plates 38 and 39 spaced from each other and define volumes of between the perforated plates 38 and 39 Whirl chambers 44 and 45, which are flowed through by the blown air.
  • the throttle effect of the air throttle 816 a, b or c is based as well as the throttling action of the air throttles 616 a to 716 c in a reduction of the flow velocity the blown air by multiple deflection of the air flow in the throttle chamber 21st

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)

Claims (8)

  1. Dispositif de guidage (9) dans une machine de traitement de feuilles imprimées (2) avec des buses à air étranglées et non étranglées (117, 118, 119 ; 115, 116) pour le guidage sans contact des feuilles imprimées (2),
    où un papillon d'étranglement d'air (416 a à c ; 516 a à c ; 616 a à c ; 716 a à c ou 816 a à c) est attribué à au moins une des buses d'air étranglées (117, 118, 119),
    caractérisé en ce que le papillon d'étranglement d'air comprend soit un remplissage de matière en vrac (22), soit une pièce d'étranglement en forme de filtre (24), soit un canal d'air en forme de spirale (27), soit des barrages d'air en saillie (32, 33) avec des chambres de turbulence (36, 37) disposées entre ceux-ci, soit des plaques perforées superposées (38, 39) avec des chambres de turbulence (44, 45) disposées entre celles-ci.
  2. Dispositif de guidage selon la revendication 1, caractérisé en ce que les buses d'air étranglées sont disposées sur un coude (11 ; 12) à risque de contact d'une surface de guidage (13).
  3. Dispositif de guidage selon la revendication 1 ou 2, caractérisé en ce que les buses d'air étranglées (117, 118, 119) sont disposées sur une zone d'extrémité (14) à risque de contact d'une surface de guidage (13).
  4. Dispositif de guidage selon l'une des revendications 1 à 3, caractérisé en ce que les buses d'air non étranglées (115, 116) sont pneumatiquement raccordées par un premier système de conduite d'air (121), et les buses d'air étranglées (117, 118, 119) par un deuxième système de conduite d'air (123), une pression d'air p1 étant présentée dans le premier système de conduite d'air (121), inférieure à une pression d'air p2 dans le deuxième système de conduite d'air (123).
  5. Dispositif de guidage selon l'une des revendications 1 à 4, caractérisé en ce que les buses d'air étranglées (117, 118, 119) sont des buses de soufflage.
  6. Dispositif de guidage selon l'une des revendications 1 à 5, caractérisé en ce que les buses d'air non étranglées (115, 116) sont des buses de soufflage.
  7. Machine pour le traitement de feuilles imprimées (2), notamment machine à imprimer rotative pour feuilles (3), avec au moins un dispositif de guidage (9) réalisé selon l'une des revendications 1 à 6.
  8. Machine selon la revendication 7, caractérisée en ce que le dispositif de guidage (9) est intégré à une réception de feuilles (1).
EP01116663A 2000-08-31 2001-07-16 Dispositif de guidage de feuilles Expired - Lifetime EP1184173B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10042888A DE10042888A1 (de) 2000-08-31 2000-08-31 Bogenleiteinrichtung
DE10042888 2000-08-31

Publications (3)

Publication Number Publication Date
EP1184173A2 EP1184173A2 (fr) 2002-03-06
EP1184173A3 EP1184173A3 (fr) 2004-03-17
EP1184173B1 true EP1184173B1 (fr) 2007-01-24

Family

ID=7654495

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01116663A Expired - Lifetime EP1184173B1 (fr) 2000-08-31 2001-07-16 Dispositif de guidage de feuilles

Country Status (5)

Country Link
US (1) US6612235B2 (fr)
EP (1) EP1184173B1 (fr)
JP (1) JP2002154707A (fr)
AT (1) ATE352418T1 (fr)
DE (2) DE10042888A1 (fr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10304618B4 (de) * 2002-03-25 2018-10-18 Heidelberger Druckmaschinen Ag Labyrinthdüse
DE10219540B3 (de) * 2002-05-02 2004-01-08 Koenig & Bauer Ag Vorrichtung zum Transportieren von Produkten
US7219889B2 (en) * 2002-10-21 2007-05-22 Heidelberger Druckmaschinen Ag Sheet-processing machine with a pneumatic sheet-guiding device
DE102004004396A1 (de) * 2004-01-29 2005-08-11 Heidelberger Druckmaschinen Ag Vorrichtung zur Erzeugung gedrosselter Blas- oder Saugluft
DE102004012692A1 (de) * 2004-03-16 2005-10-06 Heidelberger Druckmaschinen Ag Blasvorrichtung für eine Falztasche
US20050209079A1 (en) * 2004-03-16 2005-09-22 Heidelberger Druckmaschinen Ag Blower for a folder pocket
DE202004005480U1 (de) * 2004-04-02 2004-06-03 Heidelberger Druckmaschinen Ag Bogendruckmaschine
US7222571B2 (en) * 2004-04-22 2007-05-29 Bradley Susen Fan-out control assembly
DE102005016783B4 (de) 2004-05-04 2019-02-14 Heidelberger Druckmaschinen Ag Bogenbremse
US7513499B2 (en) * 2004-05-04 2009-04-07 Heidelberger Druckmaschinen Ag Sheet brake using a partitioned blower nozzle array
US20060033264A1 (en) * 2004-08-09 2006-02-16 Walker James C Apparatus for release of thin coated sheets from a roller coating machine
DE102006017461B4 (de) 2005-05-02 2022-06-09 Heidelberger Druckmaschinen Ag Verfahren und Vorrichtung zum Tragen eines Bedruckstoffbogens auf einem Luftpolster
US8454665B2 (en) * 2005-09-16 2013-06-04 Christopher G. Sidebotham Multi-purpose bone plate system
DE102006049648A1 (de) * 2006-10-20 2008-04-24 Heidelberger Druckmaschinen Ag Verfahren zum Steuern eines Puderbestäubers
DE102007020996A1 (de) * 2007-05-04 2008-11-06 Giesecke & Devrient Gmbh Vorrichtung und Verfahren zum Positionieren und/oder Führen eines Wertdokuments
DE102013010943B4 (de) * 2012-07-26 2024-03-14 Heidelberger Druckmaschinen Ag Bogenleitvorrichtung
FI126243B (fi) * 2015-01-14 2016-08-31 Takso-Ohjelmistot Oy Laite ja menetelmä kuiturainan manipuloimiseksi

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DE4244002A1 (de) * 1992-12-24 1994-07-07 Platsch Hans G Bogenleiteinheit
DE19857745A1 (de) * 1998-12-15 2000-06-29 Roland Man Druckmasch Bogenführungseinrichtung für eine Druckmaschine
DE19905095A1 (de) * 1999-02-09 2000-08-17 Roland Man Druckmasch Bogenführungseinrichtung für eine Druckmaschine

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DE19857745A1 (de) * 1998-12-15 2000-06-29 Roland Man Druckmasch Bogenführungseinrichtung für eine Druckmaschine
DE19905095A1 (de) * 1999-02-09 2000-08-17 Roland Man Druckmasch Bogenführungseinrichtung für eine Druckmaschine

Also Published As

Publication number Publication date
DE50111938D1 (de) 2007-03-15
JP2002154707A (ja) 2002-05-28
EP1184173A3 (fr) 2004-03-17
US6612235B2 (en) 2003-09-02
EP1184173A2 (fr) 2002-03-06
US20020078842A1 (en) 2002-06-27
ATE352418T1 (de) 2007-02-15
DE10042888A1 (de) 2002-03-14

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