EP0987206B1 - Dispositif pneumatique pour guider des feuilles dans une machine à imprimer - Google Patents

Dispositif pneumatique pour guider des feuilles dans une machine à imprimer Download PDF

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Publication number
EP0987206B1
EP0987206B1 EP99117390A EP99117390A EP0987206B1 EP 0987206 B1 EP0987206 B1 EP 0987206B1 EP 99117390 A EP99117390 A EP 99117390A EP 99117390 A EP99117390 A EP 99117390A EP 0987206 B1 EP0987206 B1 EP 0987206B1
Authority
EP
European Patent Office
Prior art keywords
guiding device
cooling agent
sheet guiding
channel
pneumatic
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
EP99117390A
Other languages
German (de)
English (en)
Other versions
EP0987206A2 (fr
EP0987206A3 (fr
Inventor
Peter Wulf
Edgar Dörsam
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 EP0987206A2 publication Critical patent/EP0987206A2/fr
Publication of EP0987206A3 publication Critical patent/EP0987206A3/fr
Application granted granted Critical
Publication of EP0987206B1 publication Critical patent/EP0987206B1/fr
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
    • B65H29/52—Stationary guides or smoothers
    • 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
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
    • B41F23/04—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by heat drying, by cooling, by applying powders
    • B41F23/0476—Cooling
    • 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
    • B65H2406/30—Suction means

Definitions

  • the invention relates to a pneumatic sheet guide device in a printing press according to the preamble of the main claim.
  • a sheet guiding device of this type is known from DE 195 21 442 A1.
  • a sheet guiding device is also from DE 34 11 029 C2 for guiding sheet-shaped sheets printed on one or both sides Media known.
  • This sheet guide is through modularly arranged flow channels, which openings have as air nozzles in the guide surface.
  • the leadership area is assigned as the top of the sheet conveying plane and the flow channels have a plurality of rear switchable fans for the supply of blown air or Suction air on.
  • a pneumatic sheet guide device is still from DE 43 08 276 C2 known, among other things when using a Dryer unit a cooling device cooling the sheet guide surface having.
  • the sheet guiding surface has a large number Blown air through openings in any arrangement on. There is a single opening through one in the Arch guiding surface as a baffle with integrated end face an air duct opening at an angle into the sheet guiding surface educated. Penetrate the openings through which blown air can flow the bottom of the coolant pan in appropriate Cutouts which are sealed against the leakage of coolant are.
  • the cooling device is included as a cooling trough Tub bottom and a lid formed, the lid represents the sheet guide plate (guide surface).
  • Cooling troughs Within the Cooling troughs are arranged in profile bars, which have a meandering shape Specify the course of the coolant flow. Below the coolant pan is a tube system for the blown air supply arranged, which with the penetrating the cooling trough Air jets are in functional connection.
  • the disadvantage here is that by arranging the cooling trough and tube system affects the space available in the boom are, the manufacturing cost is relatively high and the sheet conveyance is only supported with blown air.
  • the arrangement of the blow nozzles allows the bend to be dynamic be stimulated. At the individual cutouts for the air nozzles leakage may occur locally.
  • the invention has for its object a pneumatic To create sheet guide device, the disadvantages mentioned which avoids in particular an actively cooled surface has and the sheet conveying in all modes (Face printing, face and back printing) pneumatically supported.
  • the invention is characterized by the features of the main claim solved. Further training results from the subclaims.
  • a first advantage of the solution according to the invention is therein justifies that the sheet conveyance is continuously pneumatic is supported and at the same time when using a dryer system the sheet guide device can be actively cooled, so that a high heat output due to a high cooling capacity of the Coolant can be removed.
  • coolant channels as one-piece coolant channel serpentine or meandering are arranged within a flow channel. This is favorable in terms of production technology with little installation effort realizable.
  • the coolant channels are in a second embodiment to each other in or across the conveying direction of the Arch arranged in parallel and with connecting elements on the line side connected.
  • the coolant channels and the majority are preferred the openings through which air can flow in the conveying direction of the Arch arranged parallel to each other.
  • the coolant channels are in their longitudinal extension in the direction of conveyance arranged.
  • the coolant channels are in its longitudinal extent (identical to the direction of conveyance) symmetrical to the central axis of the sheet guiding device in Delivery direction arranged.
  • the cooling capacity of the sheet guiding device through a special connection of the coolant channels is variably adaptable.
  • a sheet delivery is a finishing unit, e.g. one Coating unit, or the last printing unit of an offset rotary printing machine downstream in the conveying direction 10.
  • the bow boom consists in a known manner of a revolving Conveyor system 13 with gripper systems 14 arranged thereon and a sprocket shaft 12. Transport the gripper systems 14 the sheets 15 in the conveying direction 10 of a printing cylinder 11 of the finishing unit / the last printing unit a modular, fixed sheet guide surface 1 and a format-variable sheet guiding surface via a sheet braking device 16 to a delivery stack 18 and lay the sheets 15 at stops.
  • the variable-format sheet guiding surface is coupled to the sheet braking device 16.
  • To diminish the speed as well as for accelerated depositing of the Sheet 15 on the delivery stack 18 is in the sheet delivery a controllable in a field above the boom stack 18 Blown air device 17 arranged.
  • a sheet guiding surface formed modularly with flow channels 8 1 is at least one dryer system 19, preferably opposite, assigned.
  • a first dryer system 19 in which the Sprocket shaft 12 arranged following the horizontal area and a second dryer system 19 is in the arch rise respectively assigned to a module of the sheet guiding surface 1.
  • the Cantilever in a known manner on a suction device 20.
  • a module of the sheet guiding surface 1 is essentially through a flow channel 8 which can be acted upon pneumatically is formed, which on the upper side facing the sheet 15 (guide surface) a plurality of openings through which air can flow 9 has.
  • the openings 9 are with the flow channel 8 in functional connection.
  • a pneumatic system 7 on the rear which the flow channel 8 with blowing air (less Pressure at high volume flow) or suction air.
  • blowing air less Pressure at high volume flow
  • suction air suction air.
  • the air-permeable openings 9 are in the simplest training holes, they are suitable as well as perforations, air jets and a porous material or blowing suction elements.
  • a simple training is characterized in that within the flow channel 8 at least one with one Flow 4 and a return 5 coupled coolant channel 2 essentially with a longitudinal extension in the conveying direction 10 arranged and with the guide surface of the flow channel 8 is in functional connection and that a plurality of the openings 9 essentially with a longitudinal extension in the conveying direction 10 are arranged adjacent to the coolant channel 2, wherein at least one dryer system 19 of the guide surface of the sheet guiding device 1 is assigned.
  • coolant channels 2 are within the flow channel 8 via the Format width of the printing press a plurality of coolant channels 2 with longitudinal extension in the conveying direction 10 of Arch 15 arranged and with the guide surface of the sheet guide 1 in functional connection.
  • the coolant channels 2 are preferably symmetrical in their relative position to the central axis of the sheet guiding device 1 parallel to each other arranged.
  • Each coolant channel 2 is with the back the guide surface of the sheet guiding device 1 by means of a cohesive connection 3, e.g. an adhesive or welded connection, connected.
  • the sheet guiding device 1 is generally in the area of the coolant channels 2 full-surface, i.e. there are no openings 9 available, trained.
  • the coolant channels 2 are through each other Connection elements 6, e.g. flexible pipes, on the line side coupled and have a line system with a lead 4 and a return 5 for the coolant.
  • At least between the coolant channels 2 is 10 in the conveying direction continuously a majority of the pneumatically actuated Openings 9 arranged to support the sheet conveyance.
  • the coolant channels 2 longitudinally in the conveying direction 10 is also the majority of the openings 9 (between the coolant channels 2) are arranged longitudinally in the conveying direction 10.
  • the hole pattern of the openings is thus in the conveying direction 10 9 can be carried out continuously without interruptions, see above that the sheet 15 in straight printing as well as in perfecting can be pneumatically guided without interruption.
  • Figures 1 and 2 and the following Figures 4 to 6 is for reasons for clarity only part of the openings 9 shown.
  • the coolant channels 2 are preferably direct as hat profiles with the back of the guide surface of the sheet guiding device 1 cohesive, e.g. by using a laser welding process, connected.
  • the connecting elements 6 are used Forwarding of the coolant between the coolant channels 2, with feed 4 and return 5 from the flow channel 8 led out and with a coolant treatment system are connected.
  • the coolant channels 2 have non-detachable or Detachably arranged connecting piece with which the connecting elements 6 are detachably connected on the line side. So are the sockets by means of welded connections, adhesive connections or a positively releasable connection, e.g. a screw connection, tightly connected to the coolant channels 2.
  • the cross sections of the coolant channels 2 and the junctions the connecting piece for the connecting elements 6 are of this type trained that even with low volume flows in the coolant there is a turbulent fluctuation that Heat dissipation noticeably improved.
  • the coolant channels 2 are on the line side switchable in series, as shown in Fig. 2 is.
  • the coolant channels 2 on the line side in groups and the Groups can be arranged in parallel on the circuit side.
  • the one with the Pneumatic system 7 coupled rear wall of the flow channel 8 is preferably detachably connected to the sheet guide surface 1.
  • the sheet guide device 1 with the cohesively connected Coolant channels 2 provides with the guide surface at the same time a common cover (back of the guide surface) for all coolant channels 2.
  • FIG. 4 to 6 show developments of FIG. 1 in plan view.
  • the coolant channels 2 are closed to one another a one-piece coolant channel 2, which serpentine or meandering within a flow channel 8 is arranged.
  • the connecting elements 6 from FIG. 2 are obsolete because the now one-piece coolant channel 2 Function via connecting lines (part of the coolant duct 2) takes over.
  • the coolant channel 2 is with a Flow 4 and a return 5 for the coolant in functional connection. Between the coolant channel 2 are those of Air through which openings 9 are arranged.
  • FIG. 5 shows the parallel longitudinal extent of the coolant channel 2 transversely to the conveying direction 10, the connecting paths here running in the conveying direction 10. 6 shows the meandering arrangement of two coolant channels 2 arranged in a flow channel 8 in mirror image to the center line.
  • the openings 9 are in turn arranged between the coolant channels 2.
  • the parallel longitudinal extension of the coolant channels 2 takes place at an acute angle in the conveying direction 10.
  • this longitudinal extension can also be realized at an obtuse angle in the conveying direction 10.
  • the plurality of openings 9 also run between the coolant channels 2. This arrangement enables the arches 15 to be streaked out and a possible dynamic excitation of the elbow 15 can be avoided.
  • this embodiment shows a parallel connection of two coolant channels 2, each with a flow 4 and a return 5 for the coolant in a flow channel 8. The coolant throughput can thus be increased significantly with improved heat dissipation.
  • Each coolant channel 2 is in turn a hat profile with the Back of the guide surface of a flow channel 8 by means of a cohesive connection 3 connected.
  • the coolant channels 2 are also as Hollow profile with the back of the guide surface of the flow channel 8 connected by means of a material connection 3.
  • the mode of operation is as follows:
  • the arc 15 pass through the Printing machine as well as the finishing unit and become one-sided (Face printing) or on both sides (face and reverse printing) printed and optionally lacquered and fed to the boom stack 18. If the sheet 15 is printed on one side, this is dried by the activated dryer system 19.
  • the sheet guiding surface 1 supports bow promotion by using the a control system controllable or regulatable pneumatic system 7 is switched to suction air operation and at the same time it is also controllable or controllable cooling system from the control center activated so that the coolant 2 flows through.
  • the sheet 15 is printed on both sides, it is also from the activated dryer system 19 dried.
  • the sheet guide surface 1, especially the pneumatic system 7 for Support of the lubrication-free sheet guide on blowing air operation switched.
  • the air flow generated occurs at the Openings and supports the formation of an air cushion at the back of the sheet 2 and thus the sheet conveyance.
  • the cooling system of a flow channel 8 can be switched in such a way that that the coolant channels 2 through which the coolant can flow are or that the coolant channels 2 in parallel Arrangement can be flowed through by the coolant.
  • the fixed, modular composition is preferred Sheet guiding surface 1, in modules without an assigned dryer system 19 designed according to DE 34 11 029 C2. At least it is a module of a sheet guide surface 1 a dryer system 19 assigned, so the training takes place according to the invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Discharge By Other Means (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)

Claims (9)

  1. Dispositif de guidage de feuilles pneumatique dans une machine d'impression, comportant au moins un canal d'écoulement (8), couplé à un système pneumatique, ayant des ouvertures (9) dans la surface de guidage pour faciliter le transport des feuilles, au moins un canal d'agent de refroidissement (2) couplé à un conduit d'alimentation (4) et à un conduit de retour (5) étant agencé, à l'intérieur du canal d'écoulement (8), avec une extension longitudinale généralement dans la direction de transport (10) et étant en liaison fonctionnelle avec la surface de guidage du canal d'écoulement (8), et au moins un système de séchage (19) étant associé à la surface de guidage du dispositif de guidage de feuilles (1),
    caractérisé en ce qu'une pluralité des ouvertures (9) sont agencées de façon voisine au canal d'agent de refroidissement (2) avec une extension longitudinale généralement dans la direction de transport (10).
  2. Dispositif de guidage de feuilles pneumatique selon la revendication 1,
    caractérisé en ce que, à l'intérieur du canal d'écoulement (8), sur la largeur de format, une pluralité de canaux d'agent de refroidissement (2) avec une extension longitudinale dans la direction de transport (10) sont en liaison fonctionnelle avec la surface de guidage du dispositif de guidage de feuilles (1), en ce que les canaux d'agent de refroidissement (2), du côté des conduits, sont couplés, par des éléments de liaison (6), à un conduit d'alimentation (4) et à un conduit de retour (5), et en ce qu'une pluralité des ouvertures (9), pour faciliter le transport des feuilles, est agencée au moins entre les canaux d'agent de refroidissement (2) de façon continue dans la direction de transport (10).
  3. Dispositif de guidage de feuilles pneumatique selon la revendication 2,
    caractérisé en ce que les canaux d'agent de refroidissement (2) sont agencés en série, du côté des conduits, au moyen d'éléments de liaison (6).
  4. Dispositif de guidage de feuilles pneumatique selon la revendication 2,
    caractérisé en ce que les canaux d'agent de refroidissement (2) sont agencés, au moyen d'éléments de liaison (6), du côté des conduits, en série en groupes, et les groupes sont agencés en parallèle.
  5. Dispositif de guidage de feuilles pneumatique selon la revendication 1,
    caractérisé en ce que les canaux d'agent de refroidissement (2) sont reliés au dispositif de guidage de feuilles (1) par coopération de matière, la surface de guidage du dispositif de guidage de feuilles (1) formant un couvercle commun pour tous les canaux d'agent de refroidissement (2).
  6. Dispositif de guidage de feuilles pneumatique selon les revendications 1 et 2,
    caractérisé en ce que les canaux d'agent de refroidissement (2) présentent des tubulures, et en ce que les éléments de liaison (6) sont reliés de façon amovible aux tubulures.
  7. Dispositif de guidage de feuilles pneumatique selon la revendication 6,
    caractérisé en ce que les tubulures sont reliées, par coopération de formes, de façon amovible aux canaux d'agent de refroidissement (2).
  8. Dispositif de guidage de feuilles pneumatique selon la revendication 1,
    caractérisé en ce que, à l'intérieur du canal d'écoulement (8), il est agencé un canal d'agent de refroidissement (2) en une pièce, sous forme de serpentin ou de méandre, et les ouvertures (9) sont associées, de façon voisine, au canal d'agent de refroidissement (2).
  9. Dispositif de guidage de feuilles pneumatique selon la revendication 1 ou 2 ou 8,
    caractérisé en ce qu'au moins deux canaux d'agent de refroidissement (2) sont agencés, à l'intérieur du canal d'écoulement (8), de façon symétrique par rapport à l'axe central, et en ce que ceux-ci sont montés en parallèle avec à chaque fois un conduit d'alimentation (4) et un conduit de retour (5).
EP99117390A 1998-09-18 1999-09-04 Dispositif pneumatique pour guider des feuilles dans une machine à imprimer Expired - Lifetime EP0987206B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29816734U DE29816734U1 (de) 1998-09-18 1998-09-18 Pneumatische Bogenleiteinrichtung in einer Druckmaschine
DE29816734U 1998-09-18

Publications (3)

Publication Number Publication Date
EP0987206A2 EP0987206A2 (fr) 2000-03-22
EP0987206A3 EP0987206A3 (fr) 2000-10-04
EP0987206B1 true EP0987206B1 (fr) 2001-11-21

Family

ID=8062806

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99117390A Expired - Lifetime EP0987206B1 (fr) 1998-09-18 1999-09-04 Dispositif pneumatique pour guider des feuilles dans une machine à imprimer

Country Status (3)

Country Link
EP (1) EP0987206B1 (fr)
AT (1) ATE209155T1 (fr)
DE (2) DE29816734U1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1362816A2 (fr) * 2002-05-16 2003-11-19 Christian Dr. Bay Appareil pour imprimer et plier des matériaux en feuille

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10152593A1 (de) 2001-10-24 2003-05-08 Koenig & Bauer Ag Einrichtung zur Bedruckstoff- und Druckwerkskühlung mittels gekühlter Blasluft an Bogenrotationsdruckmaschinen
DE10158050A1 (de) * 2001-11-27 2003-06-05 Roland Man Druckmasch Verfahren und Vorrichtung zum Abkühlen eines Bedruckstoffes in einer Rotationsdruckmaschine
DE10311464B4 (de) * 2003-03-15 2006-12-21 Koenig & Bauer Ag Kühlvorrichtung für Bogenleiteinrichtungen in Druckmaschinen
DE102004032111A1 (de) 2004-07-02 2006-01-19 Koenig & Bauer Ag Leiteinrichtung für Bedruckstoffe
DE102005014254B4 (de) * 2005-03-30 2020-06-10 Koenig & Bauer Ag Leiteinrichtung für flächige Bedruckstoffe
NL2023575B1 (en) 2019-07-26 2021-02-18 Xeikon Mfg Nv Printing apparatus with improved cooling

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4308276C2 (de) * 1993-03-16 1997-09-04 Heidelberger Druckmasch Ag Leiteinrichtung für einen Bogen
DE9418358U1 (de) * 1994-11-17 1995-02-23 Lts Trocknungsverfahren Gmbh Bogenleiteinrichtung

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1362816A2 (fr) * 2002-05-16 2003-11-19 Christian Dr. Bay Appareil pour imprimer et plier des matériaux en feuille
EP1362816A3 (fr) * 2002-05-16 2006-02-15 Christian Dr. Bay Appareil pour imprimer et plier des matériaux en feuille

Also Published As

Publication number Publication date
ATE209155T1 (de) 2001-12-15
DE29816734U1 (de) 1998-12-03
DE59900674D1 (de) 2002-02-21
EP0987206A2 (fr) 2000-03-22
EP0987206A3 (fr) 2000-10-04

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