EP1028077B1 - Dispositif de guidage de feuilles pour une machine à imprimer - Google Patents
Dispositif de guidage de feuilles pour une machine à imprimer Download PDFInfo
- Publication number
- EP1028077B1 EP1028077B1 EP00101032A EP00101032A EP1028077B1 EP 1028077 B1 EP1028077 B1 EP 1028077B1 EP 00101032 A EP00101032 A EP 00101032A EP 00101032 A EP00101032 A EP 00101032A EP 1028077 B1 EP1028077 B1 EP 1028077B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- guide surface
- nozzles
- air
- guiding device
- sheet guiding
- 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
Links
Images
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
- B65H29/24—Delivering or advancing articles from machines; Advancing articles to or into piles by air blast or suction apparatus
- B65H29/245—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
- 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
- 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
- B65H2406/113—Details of the part distributing the air cushion
- B65H2406/1132—Multiple nozzles arrangement
- B65H2406/11325—Adjustable impact angle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2801/00—Application field
- B65H2801/03—Image reproduction devices
- B65H2801/21—Industrial-size printers, e.g. rotary printing press
Definitions
- the invention relates to a sheet guiding device for a printing machine with one along the sheet path extending guide surface and provided in the guide surface Nozzles that can be charged with blown air or suction air are.
- Sheet guiding devices of the type specified should be in Printing machines the printed sheets when transporting one printing unit to the next or to the delivery without greasing to lead. To do this, the arches are applied with blown air and suction air when passing through the transport path stabilized and through the formation of suitable air cushions prevented from touching the guides.
- a sheet guiding device in the sheet transport direction seen in the inlet area of a guide surface arranged nozzles depending on the processed Printing material with either suction air or blown air acted upon and the nozzles between the inlet area and the outlet area of the guide surface arranged guide zone are blown with air, at least some of the nozzles blow the air essentially tangentially leads to the surface of the guide surface.
- the Guiding surfaces a different, the respective air requirement have adapted area coverage with nozzles.
- the Air is supplied to the nozzles via fans, whose Speed for setting the floating guide in blowing mode and to adjust the frictional force of the bow on the guide surfaces is adjustable in suction mode. For reversing blowing operation the fans can also be operated in suction mode their direction of rotation can be switched.
- the invention has for its object in a sheet guide of the type mentioned, the blowing air also in narrow limited zones optimally to the basis weight of the substrates, adjust the print subject and print speed to be able to.
- this object is achieved in that the nozzles by a slit-shaped Opening in a wall forming the guide surface and at least one slat arranged in the opening around an axis swivel receipt are formed so that the Angle of attack of at least individual nozzles relative to the guide surface is adjustable.
- This can also change the size of the Passage cross section adjustable at least individual nozzles his.
- the invention enables zone by zone individual Adjustment of the blown air flow and thus an optimal one Adjustment of the arch guidance to the given one Operating situations without a large number of fans with adjustable speed required.
- the direction of the blown air flow can be adjusted and at the same time the passage cross section on simple Ways vary and thus the blowing pressure as well as the training and location of the air cushions leading to the bow Optimally adapt the requirements of the sheet guide.
- the lamellae have a convexly curved air guide surface through which the air flowing along the lamellae into a directional surface parallel flow direction can be deflected.
- the convex curved air guide surface can only be on one or be formed on both sides of the slat.
- the latter Case can with appropriate adjustment of the Angle of attack of the slats of the air flow also in the opposite Directed parallel to the guide surface become.
- For zone-by-zone adjustment of the blowing or suction air to the requirements of the sheet guide can also Distribution of the slot-shaped openings over the guide surface be uneven.
- the an air box on the side of the wall facing away from the guide surface be attached, the interior of which is bounded by the wall becomes.
- the air box can have bearings for the slats and to supply air to the nozzles with axial fans or other suitable air suppliers his.
- the design of the nozzles according to the invention enables a flow-optimized arrangement in a simple manner linked to a blowing pressure level regulation by a only partially possible change in the passage cross-section of the nozzles and is suitable for both flat and also for curved guide surfaces.
- the printing press shown schematically in FIG. 1 has several in series arranged printing units 1, of which each of the plate cylinder 2, the blanket cylinder 3 and the double-large impression cylinder 4 are shown. Between the sheets are transported to the printing units each via transfer drums 5 or if possible for turning, there is a turning drum 6. From Printing cylinders of the last printing unit are through the sheets a chain gripper system 7 of a boom 8 to a boom stack 9 transported. On the transfer drums 5, the Reversing drum 6 and the chain gripper system 7 are each Sheet guiding devices 10 arranged for a Lubrication-free sheet guidance of the printed sheets ensures. Depending on the course of the Arch transport path curved or flat guide surfaces 11 which the arches are moved along. By feeding or aspirating air via arranged in the guide surfaces 11 Nozzle-free sheet guidance is achieved.
- FIG 2 shows a detail of an embodiment of a Sheet guiding device, in which the guide surface 11 forming wall 12 openings 15 in the form of rectangular Slits are provided through the blown air into the space between an arc 16 and the guide surface 11 is directed.
- the openings 15 are on the long sides bounded by surfaces 17 which are at an acute angle to Guide surface 11 are inclined so that the width of the openings 15 increases with the distance from the guide surface 11.
- slats 18 are pivotable about an axis 19 arranged.
- the lamellae 18 are symmetrical Arrangement of two convexly curved outer surfaces 20, 21 which on the parallel longitudinal edges of the slats 18 in one acute angle meet.
- the axes of curvature of the Outer surfaces 20, 21 run in the longitudinal direction of the Slats 18.
- the slats 18 can be pivoted about their axis 19 and be fixed in any angular position.
- the slats 18 are approximately in a point Angle inclined to the guide surface 11. This will on her Top side between the surfaces 17 and the outer surfaces 20 a gap acting as a nozzle 22 through which on the Blown air supplied in the form of a bottom of the wall 12 Blow jet is directed under the sheet 16.
- the blow jet lays down accordingly in the curved shape of the surface 20 the Coanda effect on the lamella and occurs thereby almost parallel to the guide surface 11 from the nozzle opening out. In this way, arises between the sheet 16 and the guide surface 11 a uniform air cushion that carries the bow 16.
- the angle of attack of the Slats 18 can be the direction of the exiting blow jet and at the same time the air outlet cross section and thus also the strength of the blow jet can be changed. hereby the blow jet can be optimally adapted to the needs of the Sheet guidance at different printing speeds and adapt to different substrates.
- the angle of inclination the slat 18 can also be reduced in size be that the lamella 18 with the outer surface 20 the surface 17 touches the air outlet from the opening 15 largely prevent.
- FIG. 3 shows a further development of the sheet guiding device according to Figure 2.
- the opening 15 in the wall 12 is here so wide that five slats 18 can be arranged in the opening 15.
- the outside surfaces 20 of the slats 18 are in this embodiment less strongly convex and the curvature of the lower one Outer surface 21 is less than that of the upper outer surface 20.
- the lower outer surface 21 can also be provided with a concave curvature.
- the fins 18 are all at the same angle to the guide surface 11 inclined and can as in the embodiment according to Figure 2 in a wide range in their inclination together and can also be adjusted independently.
- the slats 18 form five slit-shaped Nozzles 22 that are evenly supporting under the arch 16 Create air cushions.
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)
- Discharge By Other Means (AREA)
- Advancing Webs (AREA)
- Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
Claims (5)
- Dispositif de guidage de feuilles pour une machine d'impression, comportant une surface de guidage (11) s'étendant le long de la voie des feuilles et des buses (22) prévues dans la surface de guidage (11) qui peuvent être alimentées en air de soufflage ou en air d'aspiration, les buses (22) étant formées à chaque fois par une ouverture (15) dans une paroi (12) formant la surface de guidage (11),
caractérisé en ce que l'ouverture (15) est en forme de fente et en ce qu'au moins une lame (18) est agencée dans l'ouverture (15) de façon pivotante autour d'un axe (19), de sorte que l'angle d'incidence d'au moins des buses individuelles (22) par rapport à la surface de guidage (11) est réglable. - Dispositif de guidage de feuilles selon la revendication 1,
caractérisé en ce que la lame (18) présente, sur une ou sur les deux faces, une surface externe (20, 21) cintrée de façon convexe en direction transversale. - Dispositif de guidage de feuilles selon une des revendications 1 ou 2,
caractérisé en ce que, sur la face, opposée à la surface de guidage (11), de la paroi (12), il est agencé une caisse à air dont l'espace interne est limité par la paroi (12) et qui reçoit la lame (18). - Dispositif de guidage de feuilles selon une des revendications précédentes,
caractérisé en ce que la caisse à air présente un moyen de montage pour la lame (18). - Dispositif de guidage de feuilles selon une des revendications précédentes,
caractérisé en ce que la caisse à air présente des ventilateurs axiaux pour l'alimentation en air des buses (22).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19905095 | 1999-02-09 | ||
DE19905095A DE19905095C2 (de) | 1999-02-09 | 1999-02-09 | Bogenführungseinrichtung für eine Druckmaschine |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1028077A2 EP1028077A2 (fr) | 2000-08-16 |
EP1028077A3 EP1028077A3 (fr) | 2001-01-03 |
EP1028077B1 true EP1028077B1 (fr) | 2003-06-04 |
Family
ID=7896792
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00101032A Expired - Lifetime EP1028077B1 (fr) | 1999-02-09 | 2000-01-20 | Dispositif de guidage de feuilles pour une machine à imprimer |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1028077B1 (fr) |
AT (1) | ATE242168T1 (fr) |
DE (2) | DE19905095C2 (fr) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10042887A1 (de) * | 2000-08-31 | 2002-03-14 | Heidelberger Druckmasch Ag | Maschine zur Verarbeitung von Bogen |
DE10133633A1 (de) | 2000-08-31 | 2002-03-14 | Heidelberger Druckmasch Ag | Leit-und Tragelemente mit gedrosselter Blasluft |
DE10042885A1 (de) * | 2000-08-31 | 2002-03-14 | Heidelberger Druckmasch Ag | Bogentransportzylinder |
DE10042888A1 (de) | 2000-08-31 | 2002-03-14 | Heidelberger Druckmasch Ag | Bogenleiteinrichtung |
DE10344715A1 (de) | 2003-09-26 | 2005-04-21 | Heidelberger Druckmasch Ag | Vorrichtung zum Leiten eines Bedruckstoffes |
US7431290B2 (en) | 2003-09-26 | 2008-10-07 | Heidelberger Druckmaschinen Ag | Device for guiding a print carrier, method for producing a print carrier guiding device and machine for processing a print carrier |
AU2003280219A1 (en) * | 2003-11-17 | 2004-06-06 | Silverbrook Research Pty Ltd | Blower box assembly for a printer |
US7513499B2 (en) | 2004-05-04 | 2009-04-07 | Heidelberger Druckmaschinen Ag | Sheet brake using a partitioned blower nozzle array |
JP2007245719A (ja) * | 2006-03-15 | 2007-09-27 | Heidelberger Druckmas Ag | 枚葉紙搬送装置 |
CN103224152A (zh) * | 2013-04-27 | 2013-07-31 | 朱光波 | 传输及输送气浮装置 |
DE102016207406B4 (de) | 2015-08-06 | 2021-10-28 | Koenig & Bauer Ag | Transportvorrichtung zum sequentiellen Transport einzelner bogenförmiger Substrate entlang einer vorgegebenen Bahn |
CN108582760B (zh) * | 2018-05-17 | 2023-06-13 | 东莞职业技术学院 | 一种基于文创产品的纸基3d打印设备 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT362227B (de) * | 1979-07-02 | 1981-04-27 | Andritz Ag Maschf | Materialbahntrockner |
DE19549589B4 (de) * | 1995-02-01 | 2005-11-17 | Heidelberger Druckmaschinen Ag | Bogenleiteinrichtung für Druckmaschinen |
DE19728104B4 (de) * | 1997-07-02 | 2007-03-08 | Man Roland Druckmaschinen Ag | Vorrichtung zur Bogenführung an einer Bogendruckmaschine |
EP0899228B1 (fr) * | 1997-08-28 | 2004-04-14 | Heidelberger Druckmaschinen Aktiengesellschaft | Dispositif de guidage à coussin d'air |
DE29721184U1 (de) * | 1997-11-29 | 1998-01-15 | MAN Roland Druckmaschinen AG, 63075 Offenbach | Bogenführungseinrichtung in einer Druckmaschine |
DE29721185U1 (de) * | 1997-11-29 | 1998-01-15 | MAN Roland Druckmaschinen AG, 63075 Offenbach | Bogenführungseinrichtung in einer Druckmaschine |
-
1999
- 1999-02-09 DE DE19905095A patent/DE19905095C2/de not_active Expired - Fee Related
-
2000
- 2000-01-20 DE DE50002410T patent/DE50002410D1/de not_active Expired - Lifetime
- 2000-01-20 AT AT00101032T patent/ATE242168T1/de not_active IP Right Cessation
- 2000-01-20 EP EP00101032A patent/EP1028077B1/fr not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP1028077A2 (fr) | 2000-08-16 |
EP1028077A3 (fr) | 2001-01-03 |
DE19905095C2 (de) | 2001-02-22 |
ATE242168T1 (de) | 2003-06-15 |
DE50002410D1 (de) | 2003-07-10 |
DE19905095A1 (de) | 2000-08-17 |
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