EP0786339B1 - Sheet guiding device with a cooled guiding plate - Google Patents

Sheet guiding device with a cooled guiding plate Download PDF

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Publication number
EP0786339B1
EP0786339B1 EP96120243A EP96120243A EP0786339B1 EP 0786339 B1 EP0786339 B1 EP 0786339B1 EP 96120243 A EP96120243 A EP 96120243A EP 96120243 A EP96120243 A EP 96120243A EP 0786339 B1 EP0786339 B1 EP 0786339B1
Authority
EP
European Patent Office
Prior art keywords
sheet guide
sheet
guide plate
plate
welding
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
EP96120243A
Other languages
German (de)
French (fr)
Other versions
EP0786339A1 (en
Inventor
Wolfram Fendler
Matthias Schuster
Richard Burkhard Mack
Bernhard Waltenberger
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 EP0786339A1 publication Critical patent/EP0786339A1/en
Application granted granted Critical
Publication of EP0786339B1 publication Critical patent/EP0786339B1/en
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
    • 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
    • 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

Definitions

  • the invention relates to a sheet guiding device a cooled sheet baffle according to the preamble of Claim 1 for use in sheet printing machines.
  • Sheet guiding device Such a sheet guiding device is known from DE 94 18 358 U1.
  • the one disclosed by this document Sheet guiding device consists of a perforated Sheet baffle, an air chamber underneath and one in it directly under the sheet guide plate trained cooling system with water flowing through it Cooling channels.
  • the latter are made of sheet metal and are open at the top shaped and with the back (bottom) of the Sheet guide plates welded. They are arranged in the shows that air openings in the sheet guide plate are not covered be so that blowing air from the air chamber through the Air openings under the over the sheet baffle emerge transported sheet and if necessary also can be sucked in.
  • the invention consists in one Sheet guiding device of the type mentioned at the beginning Training characteristics according to the hallmark of the Claim 1.
  • the feature of the arrangement of one is outstanding Sealant between the coolant and the air in the Air chamber in connection with the thereby made possible Spot welding or pulse welding (Capacitor discharge welding) to secure a sufficiently firm connection between the actual Sheet baffle and the cooling trough, in which the channels for the coolant is formed.
  • Sealant a soft rubber ring to use, especially a so-called O-ring with low Shore hardness.
  • the effects of heat from welding are extreme kept low and in no way affect the Sheet guiding surface of the sheet guide plate.
  • a sheet guide plate 1 also forms in the sheet guide device its surface, the sheet guide surface 2 for the over Sheet guiding device transported sheets.
  • a cooling trough plate 3 On the the sheet guide surface 2 opposite bottom is with connected to the sheet guide plate 1, a cooling trough plate 3, in which a cooling system 4 with coolant channels is formed.
  • the Cooling system is located inside an air chamber 5 which is formed by a further sheet 6.
  • Air openings 7 are provided, which in the case of the example tongue-shaped incisions are formed and airborne the air chamber 5 among those in the drawing illustrated sheet can be blown, which over the Sheet guide surface 2 is transported away.
  • a Sealant For sealing of the coolant in the channels of the coolant system 4 to the air in the air chamber 5 is a Sealant provided.
  • This sealant consists in shown trap made of a soft rubber cord or preferably a soft rubber ring 8, which in a groove-shaped embossing 9 of the cooling trough plate 3 is introduced is.
  • a welding zone 10 on both sides next to the groove-shaped embossing 9 with the inside introduced sealing ring 8 provided.
  • the Air chamber 5 is in a manner not shown with the Air supply system connected to the machine and can both can be pressurized as well as underpressure.

Description

Die Erfindung bezieht sich auf eine Bogenleitvorrichtung mit einem gekühlten Bogenleitblech nach dem Oberbegriff des Patentanspruches 1 zur Verwendung in Bogendruckmaschinen.The invention relates to a sheet guiding device a cooled sheet baffle according to the preamble of Claim 1 for use in sheet printing machines.

Bekannt ist eine solche Bogenleitvorrichtung aus DE 94 18 358 U1. Die durch diese Druckschrift offenbarte Bogenleitvorrichtung besteht aus einem gelochten Bogenleitblech, einer darunter angeordneten Luftkammer und einem darin unmittelbar unter dem Bogenleitblech ausgebildeten Kühlsystem mit von Wasser durchströmten Kühlkanälen. Letztere sind als oben offene Rinnen aus Blech geformt und mit der Rückseite (Unterseite) des Bogenleitbleches verschweißt. Ihre Anordnung erfolgt in der weise, daß Luftöffnungen im Bogenleitblech nicht verdeckt werden, so daß Blasluft aus der Luftkammer durch die Luftöffnungen unter den über das Bogenleitblech hinweg transportierten Bogen austreten und gegebenenfalls auch angesaugt werden kann.Such a sheet guiding device is known from DE 94 18 358 U1. The one disclosed by this document Sheet guiding device consists of a perforated Sheet baffle, an air chamber underneath and one in it directly under the sheet guide plate trained cooling system with water flowing through it Cooling channels. The latter are made of sheet metal and are open at the top shaped and with the back (bottom) of the Sheet guide plates welded. They are arranged in the shows that air openings in the sheet guide plate are not covered be so that blowing air from the air chamber through the Air openings under the over the sheet baffle emerge transported sheet and if necessary also can be sucked in.

Verlangt wird von Bogenleitvorrichtungen der von der Erfindung betroffenen Bauart eine möglichst gleichmäßig und optimal gekühlte Bogenleitfläche und eine auch unter wechselnden Temperaturen dichte Trennung des Kühlmittels von der Luft in der Luftkammer. Das Bogenleitblech soll eine glatte Oberfläche aufweisen und darf bei sich ändernden Temperaturen nicht zu Verwerfungen neigen. Andererseits soll die Bogenleitvorrichtung eine möglichst geringe Bauhöhe und ein geringes Gewicht aufweisen, leicht montierbar und mit möglichst geringem Aufwand herstellbar sein.Is required of the sheet guiding device that of the Invention affected type as evenly and as possible optimally cooled sheet guiding surface and also under changing temperatures tight separation of the coolant from the air in the air chamber. The sheet guide plate should be one have a smooth surface and may change Temperatures do not tend to warp. On the other hand, should the sheet guiding device has the lowest possible height and have a low weight, easy to assemble and with be as simple as possible to produce.

Es ist Aufgabe der Erfindung, eine Bogenleitvorrichtung der eingangs genannten Bauart mit geringer Bauhöhe kostengünstig herzustellen, bei der eine glatte Bogenleitfläche auch im praktischen Betrieb erhalten bleibt und gleichmäßig gekühlt werden kann, um eine hohe Betriebssicherheit im schnellen Fortdruck hochtouriger Maschinen zu erreichen.It is an object of the invention to provide a sheet guiding device Design mentioned at the beginning with a low overall height inexpensive produce in which a smooth sheet guide surface also in practical operation is maintained and cooled evenly can be to ensure high operational reliability in the fast To continue production of high-speed machines.

Zur Lösung dieser Aufgabe besteht die Erfindung in einer Bogenleitvorrichtung der eingangs genannten Bauart mit Ausbildungsmerkmalen nach dem Kennzeichen des Patentanspruches 1.To achieve this object, the invention consists in one Sheet guiding device of the type mentioned at the beginning Training characteristics according to the hallmark of the Claim 1.

Herausragend ist das Merkmal der Anordnung eines Dichtungsmittels zwischen dem Kühlmittel und der Luft in der Luftkammer in Verbindung mit der dadurch ermöglichten Punktschweißung oder Impulsschweißung (Kondensatorentladungsschweißen) zur Sicherung einer ausreichend festen Verbindung zwischen dem eigentlichen Bogenleitblech und dem Kühlwannenblech, in dem die Kanäle für das Kühlmittel ausgebildet sind. Vorzugsweise kommt als Dichtungsmittel ein Weichgummiring zur Anwendung, insbesondere ein sogenannter O-Ring mit geringer Shorehärte. Wärmeeinwirkungen durch die Schweißung werden somit äußerst gering gehalten und wirken sich in keiner Weise auf die den Bogen führende Oberfläche des Bogenleitbleches aus. Zur Verringerung der Herstellungskosten werden vorgefertigte O-Ringe in Rillen eingelegt, die in das Kühlwannenblech eingedrückt sind, worauf eine punktförmige Schweißung entweder auf einer Seite neben dem eingelegten Dichtungsring oder vorzugsweise auf beiden Seiten neben dem eingelegten Dichtungsring erfolgt. Dazu weist ein im Bereich der Luftöffnungen des Bogenleitbleches mit Ausschnitten versehenes Kühlwannenblech Prägungen mit einer den Ausschnitt umschließenden Rille für die Aufnahme eines Dichtungsringes und beidseitig daneben flach und bündig an dem Bogenleitblech anliegende Schweißzonen auf. Die konstruktive Ausbildung der Erfindungsmerkmale ermöglicht eine gleichmäßig und optimal gekühlte Bogenleitfläche, wobei auch unter wechselnden Temperaturen eine dichte Trennung des Kühlmittels von der Luft in der Luftkammer erhalten bleibt. Die im Wege der Punktschweißung, Laserschweißung oder Impulsschweißung (Kondensatorentladungsschweißen) hergestellte Verbindung zwischen dem Bogenleitblech und dem Kühlwannenblech führt weder bei der Herstellung der Bogenleitvorrichtung noch bei deren bestimmungsgemäßen Verwendung unter wechselnden Temperaturen zu unerwünschten Verwerfungen.The feature of the arrangement of one is outstanding Sealant between the coolant and the air in the Air chamber in connection with the thereby made possible Spot welding or pulse welding (Capacitor discharge welding) to secure a sufficiently firm connection between the actual Sheet baffle and the cooling trough, in which the channels for the coolant is formed. Preferably comes as Sealant a soft rubber ring to use, especially a so-called O-ring with low Shore hardness. The effects of heat from welding are extreme kept low and in no way affect the Sheet guiding surface of the sheet guide plate. For Reduction in manufacturing costs are prefabricated O-rings inserted into grooves in the cooling pan sheet are indented, followed by a spot weld either on one side next to the inserted sealing ring or preferably on both sides next to the inserted one Sealing ring is done. To do this points in the area of Air openings of the sheet guide plate with cutouts Provided cooling trough plate embossing with a cutout enclosing groove for receiving a sealing ring and flat and flush on both sides next to the sheet guide adjacent welding zones. The constructive training of the Invention features enables a uniform and optimal cooled sheet guiding surface, even under changing Temperatures a tight separation of the coolant from the Air remains in the air chamber. The in the way of Spot welding, laser welding or pulse welding (Capacitor discharge welding) leads between the sheet guide plate and the cooling trough plate neither in the manufacture of the sheet guiding device nor in their intended use under changing Temperatures to undesirable faults.

In der Zeichnung sind Ausführungsbeispiele der Erfindung dargestellt.Exemplary embodiments of the invention are shown in the drawing shown.

Es zeigen:

Fig. 1
einen schematischen Querschnitt durch eine Bogenleitvorrichtung mit den Erfindungsmerkmalen,
Fig. 2
eine Ausschnittvergrößerung der Darstellung in Figur 1 mit einseitiger Schweißverbindung zwischen dem Bogenleitblech und dem Kühlwannenblech,
Fig. 3
Ausschnittvergrößerung einer doppelseitigen Schweißverbindung zwischen dem Bogenleitblech und dem Kühlwannenblech und
Fig. 4
eine Ansicht des Kühlwannenbleches der Ausbildung nach Figur 3 im Ausschnitt.
Show it:
Fig. 1
2 shows a schematic cross section through a sheet guiding device with the features of the invention,
Fig. 2
2 shows an enlarged detail of the illustration in FIG. 1 with a weld connection on one side between the sheet guide plate and the cooling trough plate,
Fig. 3
Enlargement of a double-sided weld connection between the sheet guide plate and the cooling trough plate and
Fig. 4
a view of the cooling pan sheet of the design of Figure 3 in a detail.

In der Bogenleitvorrichtung bildet ein Bogenleitblech 1 mit seiner Oberfläche die Bogenleitfläche 2 für den über die Bogenleitvorrichtung hinweg transportierten Bogen. Auf der der Bogenleitfläche 2 gegenüberliegenden Unterseite ist mit dem Bogenleitblech 1 ein Kühlwannenblech 3 verbunden, in dem ein Kühlsystem 4 mit Kühlmittelkanälen ausgebildet ist. Das Kühlsystem befindet sich innerhalb einer Luftkammer 5, die durch ein weiteres Blech 6 gebildet ist. Zwischen den Kanälen des Kühlmittelsystems 4 sind in dem Bogenleitblech 1 Luftöffnungen 7 vorgesehen, die im Falle des Beispieles durch zungenförmige Einschnitte gebildet sind und über die Luft aus der Luftkammer 5 unter den in der Zeichnung nicht dargestellten Bogen geblasen werden kann, welcher über die Bogenleitfläche 2 hinweg transportiert wird. Zur Abdichtung des Kühlmittels in den Kanälen des Kühlmittelsystems 4 gegenüber der Luft in der Luftkammer 5 ist ein Dichtungsmittel vorgesehen. Dieses Dichtungsmittel besteht im dargestellten Falle aus einer Weichgummischnur oder vorzugsweise einem Weichgummiring 8, welcher in eine rillenförmige Prägung 9 des Kühlwannenbleches 3 eingebracht ist. Im Falle des Beispieles nach Figur 2 befindet sich einseitig neben der Prägung 9 mit dem eingelegten Dichtungsring 8 eine flach und bündig an dem Bogenleitblech anliegende Schweißzone 10. Im Falle des Beispieles nach den Figuren 3 und 4 ist eine solche Schweißzone 10 beidseitig neben der rillenförmigen Prägung 9 mit dem darin eingebrachten Dichtungsring 8 vorgesehen. In den einseitig oder beidseitig angeordneten Schweißzonen sind das Bogenleitblech 1 und das Kühlwannenblech 3 durch in Abständen vorgenommene Punktschweißungen 11 miteinander verbunden. Die Luftkammer 5 ist in nicht dargestellter weise mit dem Luftversorgungssystem der Maschine verbunden und kann sowohl mit überdruck als auch mit Unterdruck beaufschlagt werden. A sheet guide plate 1 also forms in the sheet guide device its surface, the sheet guide surface 2 for the over Sheet guiding device transported sheets. On the the sheet guide surface 2 opposite bottom is with connected to the sheet guide plate 1, a cooling trough plate 3, in which a cooling system 4 with coolant channels is formed. The Cooling system is located inside an air chamber 5 which is formed by a further sheet 6. Between the channels of the coolant system 4 are in the sheet guide plate 1 Air openings 7 are provided, which in the case of the example tongue-shaped incisions are formed and airborne the air chamber 5 among those in the drawing illustrated sheet can be blown, which over the Sheet guide surface 2 is transported away. For sealing of the coolant in the channels of the coolant system 4 to the air in the air chamber 5 is a Sealant provided. This sealant consists in shown trap made of a soft rubber cord or preferably a soft rubber ring 8, which in a groove-shaped embossing 9 of the cooling trough plate 3 is introduced is. In the case of the example according to FIG on one side next to the embossing 9 with the inserted Sealing ring 8 a flat and flush on the sheet baffle adjacent welding zone 10. In the case of the example according to Figures 3 and 4 is such a welding zone 10 on both sides next to the groove-shaped embossing 9 with the inside introduced sealing ring 8 provided. In the one-sided or welding zones arranged on both sides Sheet guide plate 1 and the cooling trough plate 3 at intervals made spot welds 11 connected. The Air chamber 5 is in a manner not shown with the Air supply system connected to the machine and can both can be pressurized as well as underpressure.

BEZUGSZEICHENLISTEREFERENCE SIGN LIST

11
BogenleitblechSheet baffle
22nd
BogenleitflächeSheet guiding surface
33rd
KühlwannenblechCooling trough plate
44th
KühlmittelsystemCoolant system
55
LuftkammerAir chamber
66
Blechsheet
77
LuftöffnungAir opening
88th
DichtungsringSealing ring
99
PrägungEmbossing
1010th
SchweißzoneWelding zone
1111
SchweißpunktSpot weld

Claims (4)

  1. Sheet guide device with a cooled sheet guide plate which has air orifices and, on the rear side located opposite the sheet guide face, is connected to coolant ducts which leave the air orifices free and which are formed by a cooling trough plate which is sealed off relative to the sheet guide plate, is connected to the sheet guide plate by welding and has deformations forming ducts, characterized in that a sealing means (8) is located, between the rear side of the sheet guide plate (1) and the cooling trough plate (3), in receiving grooves (9) surrounding the air orifices (7) and formed in the cooling trough plate (3), and next to the said sealing means are arranged spot-like weld zones (10) for connecting the sheet guide plate (1) and the cooling trough plate (3) by spot welding, laser welding or pulse welding, for example capacitor discharge welding.
  2. Sheet guide device according to Claim 1, characterized in that sealing rings (8) preformed as a gasket are introduced into receiving grooves (9) annularly surrounding the air orifices (7).
  3. Sheet guide device according to Claim 2, characterized in that weld zones (10) are arranged, on both sides, next to a receiving groove (9) for a sealing ring (8), the said receiving groove being produced by pressing.
  4. Sheet guide device according to Claim 3, characterized in that a cooling trough plate (3), provided with cutouts in the region of the air orifices (7) of the sheet guide plate (1), has pressings (9) with a groove for receiving a sealing ring (8), the said groove surrounding the cutout, and, on both sides, next to the said pressings, weld zones (10) which rest flat and flush against the sheet guide plate (1).
EP96120243A 1996-01-25 1996-12-17 Sheet guiding device with a cooled guiding plate Expired - Lifetime EP0786339B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19602514A DE19602514C1 (en) 1996-01-25 1996-01-25 Sheet feeder with cooled feed plate
DE19602514 1996-01-25

Publications (2)

Publication Number Publication Date
EP0786339A1 EP0786339A1 (en) 1997-07-30
EP0786339B1 true EP0786339B1 (en) 1999-05-19

Family

ID=7783574

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96120243A Expired - Lifetime EP0786339B1 (en) 1996-01-25 1996-12-17 Sheet guiding device with a cooled guiding plate

Country Status (5)

Country Link
US (1) US5992845A (en)
EP (1) EP0786339B1 (en)
JP (1) JP3974675B2 (en)
CA (1) CA2195145A1 (en)
DE (2) DE19602514C1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19810387C1 (en) * 1998-03-11 1999-07-29 Autz & Herrmann Maschf Sheet feeder, esp. for contactless feeding of printed paper sheets in or in connection with printing machines, e.g. in a drier
DE19842740C2 (en) * 1998-09-18 2002-11-07 Roland Man Druckmasch Pneumatic sheet guiding device in a printing machine
DE10049809B4 (en) 1999-10-28 2014-02-13 Heidelberger Druckmaschinen Ag Guide device for a sheet-like substrate
DE10152593A1 (en) * 2001-10-24 2003-05-08 Koenig & Bauer Ag Device for printing material and printing unit cooling by means of cooled blown air on sheet-fed rotary printing machines
EP1362816A3 (en) * 2002-05-16 2006-02-15 Christian Dr. Bay Apparatus for the printing and folding of sheet material
US7826904B2 (en) * 2006-02-07 2010-11-02 Angiodynamics, Inc. Interstitial microwave system and method for thermal treatment of diseases

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2076187A5 (en) * 1970-01-06 1971-10-15 Jacot Ets Dryer for thin webs - with air fed at angle to web
US3936953A (en) * 1973-10-10 1976-02-10 Beloit Corporation Air impingement system
US4003568A (en) * 1975-12-08 1977-01-18 Xerox Corporation Fluid conveyer
SE451125B (en) * 1983-06-03 1987-09-07 Tetra Pak Ab DEVICE FOR THE TREATMENT OF A CURRENT PACKAGING MATERIAL COAT WITH MEDIUM FLOWING GAS
US4763424A (en) * 1986-02-28 1988-08-16 Thermo Electron-Web Systems, Inc. Apparatus and method for the control of web or web-production machine component surface temperatures or for applying a layer of moisture to web
US5370289A (en) * 1992-02-21 1994-12-06 Advance Systems, Inc. Airfoil floater apparatus for a running web
DE4308276C2 (en) * 1993-03-16 1997-09-04 Heidelberger Druckmasch Ag Guide device for an arch
DE4336364C2 (en) * 1993-10-25 1996-02-29 Cattin Machines Sa Device for heating or cooling tabular or band-shaped items to be treated made of glass or ceramic material
DE4406847C2 (en) * 1994-03-03 1997-07-10 Koenig & Bauer Albert Ag Device for floating guiding of sheets or webs
DE4447963B4 (en) * 1994-08-03 2005-12-29 Heidelberger Druckmaschinen Ag Device for non-contact guiding sheet material
DE4434778C1 (en) * 1994-09-29 1995-11-30 Roland Man Druckmasch Sheet guide between guide cylinder and drum in rotary printing press
DE9418358U1 (en) * 1994-11-17 1995-02-23 Lts Trocknungsverfahren Gmbh Sheet guiding device
DE19546046A1 (en) * 1995-12-09 1997-06-12 Heidelberger Druckmasch Ag Sheet guiding system for a printing machine

Also Published As

Publication number Publication date
JP3974675B2 (en) 2007-09-12
DE19602514C1 (en) 1997-04-03
DE59601942D1 (en) 1999-06-24
JPH09201946A (en) 1997-08-05
CA2195145A1 (en) 1997-07-26
US5992845A (en) 1999-11-30
EP0786339A1 (en) 1997-07-30

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