EP0788878B1 - Vorrichtung und Verfahren zum Führen einer Bahn zwischen zwei Zylinder einer Druckmaschine - Google Patents
Vorrichtung und Verfahren zum Führen einer Bahn zwischen zwei Zylinder einer Druckmaschine Download PDFInfo
- Publication number
- EP0788878B1 EP0788878B1 EP96120244A EP96120244A EP0788878B1 EP 0788878 B1 EP0788878 B1 EP 0788878B1 EP 96120244 A EP96120244 A EP 96120244A EP 96120244 A EP96120244 A EP 96120244A EP 0788878 B1 EP0788878 B1 EP 0788878B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- web
- air
- cylinders
- blast
- cylinder
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F13/00—Common details of rotary presses or machines
- B41F13/02—Conveying or guiding webs through presses 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
- 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
- B65H2301/00—Handling processes for sheets or webs
- B65H2301/50—Auxiliary process performed during handling process
- B65H2301/52—Auxiliary process performed during handling process for starting
- B65H2301/522—Threading web into machine
-
- 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 present invention relates to an apparatus for performing a printed web between the mutually parked cylinders of a shutdown Printing unit of a web-fed rotary printing press.
- a first reason is e.g. B. that the blanket cylinder is inclined relative to the vertical are arranged such that one adjoins through the centers of the two Blanket cylinder extending axis through an inclination angle of z. B. 10 ° to 15 ° is inclined towards the vertical as the web moves horizontally.
- the inclined position of the cylinder has the advantage that the web does not only apply the cylinder a narrow line, but to stabilize it by a certain amount Peripheral portion of each blanket cylinder is wound, so the better To obtain the clamping point.
- the inclination of the cylinders creates a consistent one Peeling or peeling off the web from the blanket cylinders.
- a second reason why the blanket cylinders are not easily separated from each other is that in most web-fed rotary presses in which the Web printed by two corresponding blanket cylinders on both sides one of the blanket cylinders is normally stored in the frame in the printing unit is to serve as a reference point and only the other of the cylinders is moved when it is desired to separate the cylinders from one another. It is also due to the Construction of the mechanical drive mechanism for stopping the Blanket cylinders from each other are generally not possible, the cylinders more than approx. 2 mm to 4 mm apart.
- a third reason why the blanket cylinders are not easily separated from each other is that the running web is subject to strong vibrations and flutter is subject. Even if there is a gap of approx. 4 mm wide, contact-free passage theoretically allows the track through the inclined cylinders, which are set apart from each other, the freshly printed and still wet web would inevitably cover the surface of the Touch cylinder and the print quality would decrease dramatically and the Risk of web break increased.
- the production of high quality printed products is usually the Ink flow from the ink fountain to the plate cylinders of each printing unit interrupted, the printing plates on the plate cylinders by unimaged plates replaced and the plate and blanket cylinders then at normal web speed driven, with the dampening system switched on and the web with the respective Blanket cylinder is in contact.
- the web can be z.
- B. air-blown blowpipes or turning bars around the shutdown (s) Printing unit (s) are redirected.
- guiding or bypassing has printed web around the shutdown printing units the disadvantage that for each new Print job in which the shutdown printing units are switched on again , the endless web must be drawn into the respective printing unit.
- Another technical way of guiding the web between each other parked cylinders of a shutdown printing unit consists of the web via fixed, upstream and downstream of a stopped To guide printing rollers or discs located (so-called “grater rollers").
- grater rollers can cause unacceptable damage not only on the wet surface of a printed web, but also on the surface of a cause unprinted web in an offset printing press.
- guide rollers significantly reduce the risk of a web break increase.
- leadership roles are usually only found in newspaper printing presses Low quality printed products are used.
- GB 1 461 572 describes an apparatus for assisting the leading end of a moving flexible web which comprises two arcuate arrays of air nozzles mounted above and below the web path which converge towards the inlet nip of cutting rollers of a subsequent cutting area.
- the air streams coming out of the air nozzles are directed onto the web path and are preferably concentrated on the inlet gap mentioned.
- This device is only for pulling a flexible web through the cylinder column of a printing press or an auxiliary device, for. B. a cutting device, a folder or a non-operated slitter.
- DE-OS 28 22 137 discloses a device similar to the description of the UK patent, which serves as a pulling-in and guiding aid when pulling the front end of a running, flexible web into the inlet gap between two cutting cylinders of a subsequent cutting area.
- This device comprises two air nozzles through which air is blown towards the inlet nip, centering the leading edge of the paper web and preventing the web from moving sideways.
- FR-A-2 519 298 is a web-fed rotary printing press with one between two Printing units of the printing press arranged blowing device known that the top and the underside of the substrate web over perpendicular to the web or against the Blowing air is arranged on both sides of the web with blowing air, to eliminate vibrations of the web and thereby a doubling in the to avoid subsequent printing units.
- the embodiments of the present invention enable a quick and easy change of print jobs, especially a change from multi-color printing on single-color printing, since it is not necessary to run the web over idle printing units to lead away.
- a new print job the shutdown of a previously used printing unit in simple Caused in such a way that the blowing air supplied through air nozzles is switched on and the corresponding cylinders of the respective printing unit from each other.
- the decrease in Transverse vibrations also stabilize the orbit over a longer section away, e.g. B. between three printing units or coating units, so that the Distance by which the blanket or coating cylinders for a non-contact Passing the printed web must be separated from each other is reduced.
- Another advantage of the device according to the invention is given in that no incorrect register settings, such as those used for the Use of floating guide devices guiding the web without lubrication, e.g. B. blowpipes, in the deflection of the web around a decommissioned printing unit occur are avoided. It was also found that a new time adjustment the printing units to each other (retiming) is almost not necessary when a printing unit is taken out of the railway path, because it has surprisingly been shown that the path on which the web or substrate is using the device according to the invention moved through a stopped printing unit, approximately corresponds to the path that the web during normal printing or Coating process.
- An additional advantage in using the present invention is that it because of a deflection of the web over a stopped printing unit none of the smear-proof devices that let the web float, such as air pipes incorrect register setting comes. In addition, there is almost no renewal Time setting required if a printing unit is excluded from the web path , since it has been found that the path on which the web or the substrate moved by a stopped printing unit, the path during normal printing or coating is very similar.
- Fig. 1 are a first plate cylinder 2 and a corresponding first printing or Blanket cylinder 4 of a printing unit for printing a first side 6 through the printing unit web 8 shown.
- a second plate cylinder 10 and a corresponding second printing or blanket cylinder 12 are on the second side 14 of the web 8 so that both sides of the web are printed simultaneously can.
- the cylinders 2, 4, 10 and 12 are in the direction of Vertical inclined by about 10 ° to 15 °, so that the running web 8 with respect to the Cylinders 4 and 12 have a certain amount of wrap and one consistent peeling or peeling effect of the web from the blanket cylinders 4, 12 generates what stabilizes the web and a better nip point to control the Creates tension.
- the mechanical shutdown mechanism for separating the Cylinders 4 and 12 from each other can be a known eccentric mechanism, for example the distance between the cylinders 4 and 12 is normally at most limited to approx. 2 mm to 4 mm.
- one of the blanket cylinders is usually fixed in the frame in the side frame and serves as a reference point. So can the path is not straight through the gap between the two cylinders 4 and 12 move through without touching the surfaces of cylinders 4 and 12.
- a first blowing device 16 is located upstream the first cylinder 4 on the first side 6 of the web 8 and brings blowing air 18 into the Space between the first cylinder 4 and the first side 6 of the web 8.
- the first blowing device 16 is controlled via z. B. one operated by a central control unit 24 (see FIG. 2) or manually Solenoid valve 22 or other equivalent valve with a compressed air reservoir 20 connected.
- a second blowing device 26 is located upstream of the second cylinder 12 the second side 14 of the web 8 and brings blown air 28 out of the compressed air reservoir 20 or a separate compressed air reservoir in the space between the second Cylinder 12 and the second side 14 of the moving web 8.
- the central control unit 24 Fig. 2
- solenoid valve 32 or equivalent valve with the compressed air reservoir 20 or a separate one Compressed air reservoir to be connected.
- the first and second blowers 16 and 26 may further via a arranged between the compressed air reservoir 20 and the valves 22 and 32 third solenoid valve 34 may be connected to the compressed air reservoir 20.
- the third Solenoid valve 34 can also be operated by central control unit 24 or manually and allows an easy and quick switching on and off or regulating the Blown air 18 and 28 of the first and second blowers 16 and 26, without the Change the setting of valves 22 and 32.
- the in the space between the first side 6 of the web 8 and the first cylinder 4 of the Blowing air 18 supplied to the printing unit and that into the space between the second Page 14 of the web 8 and the second cylinder 12 of the printing unit fed Blown air 28 can be controlled so that it is strong enough to the one hand Let web 8 float across the entire width, but on the other hand flows only so weakly that an instability or a fluttering between the cylinders 4 and 12 of the printing unit, web 8 passing through each other is avoided.
- the optimum blown air pressure in each case can be, for example, Experiments can be determined during the setup of the printing unit, the Weight of the web is to be considered.
- the blowing air 18 coming from the first and second blowing devices 16 and 26 and 28 forms an air flow between the web 8 and the surface of each first and second cylinders 4 and 12. This air flow prevents the current Track 8 touches the cylinders 4 and 12 and thus prevents lubrication of the printed or coated web 8.
- the blowing air 18, 28 is on one Contact point between the running path 8 and the respective first and second Cylinders 4 and 12 directed, both sides of the web 8 being subjected to forces which the web 8 in the middle of between the two separate cylinders 4th and 12 shaped gap hold.
- the path on which the running web 8 between the two cylinders 4 and 12 parked apart, has been found to be the same proven on which the web or substrate during normal printing or Coating process runs through the printing unit.
- the deflection the web 8 and the associated requirement to compensate for the deflection and carry out a time comparison of the printing unit, as well as the probability that a Loss of register setting occurs minimized.
- the first blowing device 16 can consist of a first arrangement of Nozzles 38, which with a first line, for. B. a hose, pipe or Distribution pipe 50 are connected to be formed.
- the second Blowing device 26 from a second arrangement of nozzles 48, which with a second hose, pipe or distributor pipe 40 are connected.
- the manifolds 40 and 50 can be in a respective first and second bearing 42 and 52 may be rotatably mounted as shown in FIGS. 2-4, their Axes of rotation substantially parallel to the axes of the first and second cylinders 4 and 12 run.
- the manifolds 40 and 50 can also have one end with a respective first and second drive device 44, and 54, z. B. with a electric motor or with one controlled by the central control unit 24 pneumatic drive.
- the Manifolds 40 and 50 alternatively or additionally with a respective lever 144, 154 be connected to manually rotate the manifolds 40 and 50.
- the other end of each manifold 40 and 50 can be via valves 22, 32 and / or 34 may be connected to the compressed air reservoir 20, as is related to the Embodiment of FIG. 1 was previously described.
- the first and second nozzle assemblies 38 and 48 of the first and second blowers 16 and 26 are rotated or pivoted to the direction of the blowing air 18 and 28 and thereby the path of the path between the cylinders 4 and 12 parked apart of the shutdown printing unit.
- the nozzles 38 and 48 are conical. The number of nozzles of the first and second arrangement 38 and 48 depends on the width of the web and is not on the for each side of the web is limited to the five nozzles shown in FIG.
- Air nozzle 58, 60 with a respective elongated opening 60, 70 can also be one Arrangement of several nozzles with elongated openings used in the Drawings are not shown.
- each blowpipe one Can have a variety of individual nozzles 80 and 90.
- the air nozzles 58 and 68 of FIG. 3 and the blowpipes 78 and 88 of FIG. 4 can pass through the rotators 44, 144 and 54, 154 rotated and pivoted and in the same Can be connected to a compressed air reservoir 20, as in relation to the Distribution pipes 40 and 50 of FIG. 2 described.
- the air nozzles 58 and 68 (Fig. 3) and the blowpipes 78 and 88 (Fig. 4) can also one in the direction of between the web 8 and the respective first and second Cylinder 4, 12 formed space tapered shape. This allows the Openings 60 and 70 of the air nozzles 58 and 68 (Fig. 3) and the nozzles 80 and 90 of the Blowpipes 78 and 88 (Fig. 4) further into the space between the web 8 and the protrude respective cylinders 4 and 12, causing the amount of blowing air that the first and second blowing device must be fed to the web 8 between the Center cylinders 4 and 12 is reduced.
- blowing device such as the Air nozzles 58, 68 or the blowpipes 78, 88 on the first side of the web 8 with one second type of blowing devices, e.g. B. the separate nozzles 38, 48 on the second To combine side of lane 8, or any other combination of to use different blowing devices.
- blowing devices 100, 102 which, for. B. in the same way as the above described and shown in FIGS. 2 to 4 blowing devices 16, 26 formed be or have the shape of a conventional blowing air or turning bar and the downstream of the blanket cylinder 4, 12 on the first and / or second Page 6, 14 of the web 8 are attached.
- blowing devices 100, 102 which, for. B. in the same way as the above described and shown in FIGS. 2 to 4 blowing devices 16, 26 formed be or have the shape of a conventional blowing air or turning bar and the downstream of the blanket cylinder 4, 12 on the first and / or second Page 6, 14 of the web 8 are attached.
- blowing devices 100, 102 which, for. B. in the same way as the above described and shown in FIGS. 2 to 4 blowing devices 16, 26 formed be or have the shape of a conventional blowing air or turning bar and the downstream of the blanket cylinder 4, 12 on the first and / or second Page 6, 14 of the web 8 are attached.
- Such an embodiment can serve the from the downstream side of
- the downstream blowing devices 100, 102 can be equipped with a compressed air reservoir in can be connected in the same way as in the compressed air reservoir 20 of FIG. 1 the case is, namely via controllable valves 104, 106. These downstream Blowing devices 100, 102 can blow air in the direction of the running web 8 and / or in the direction of between the respective first or second side 6, 14 of the Feed web 8 and the respective cylinder 4, 12 formed space. Furthermore, it can be provided, the blowing devices 100 and / or 102 in the same manner as that Blowers 16, 26, e.g. B. rotatable in the bearings 42 and 52 shown in FIGS or to be pivoted so that the direction of the blowing air is simple can be set manually and / or automatically.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rotary Presses (AREA)
- Inking, Control Or Cleaning Of Printing Machines (AREA)
Description
DE-OS 28 22 137 offenbart eine der Beschreibung des UK-Patents ähnliche Vorrichtung, die als eine Einzugs- und Führungshilfe beim Einzug des vorderen Endes einer laufenden, flexiblen Bahn in den Einlaufspalt zwischen zwei Schneidzylindern eines nachfolgenden Schneidebereichs dient. Diese Vorrichtung umfaßt zwei Luftdüsen, durch welche Luft in Richtung des Einlaufspalts geblasen wird, wobei die Vorderkante der Papierbahn zentriert und ein Seitwärtsbewegen der Bahn verhindert wird.
- Fig. 1
- einen schematischen Querschnitt eines Ausführungsbeispiels der vorliegenden Erfindung;
- Fig. 2
- eine perspektivische Ansicht der Vorrichtungen der Fig. 1, in welcher durch eine Anordnung benachbarter Düsen eine erste und zweite Blaseinrichtung gebildet sind;
- Fig. 3
- eine perspektivische Seitenansicht eines weiteren Ausführungsbeispiels der Erfindung, in welchem die erste und zweite Blaseinrichtung eine Luftdüse umfassen, die eine längliche, sich über die Breite der Bahn erstreckende Düsenöffnung aufweist;
- Fig. 4
- eine perspektivische Seitenansicht eines weiteren Ausführungsbeispiels der Erfindung, in welchem die erste und zweite Blaseinrichtung ein Blasrohr mit individuellen benachbarten Luftdüsen aufweist; und
- Fig. 5
- eine schematische Ansicht einer Magnetventil-Anordnung, die z. B. in dem Ausführungsbeispiel der Fig. 2 verwendet werden kann.
- 2
- erster Plattenzylinder
- 4
- erster Gummituchzylinder
- 6
- erste Seite der Bahn 8
- 8
- Bahn
- 10
- zweiter Plattenzylinder
- 12
- zweiter Gummituchzylinder
- 14
- zweite Seite der Bahn 8
- 16
- erste Blaseinrichtung
- 18
- Blasluft
- 20
- Druckluftreservoir
- 22
- Magnetventil
- 24
- zentrale Steuereinheit
- 26
- zweite Blaseinrichtung
- 28
- Blasluft
- 32
- Magnetventil
- 34
- Magnetventil
- 38
- erste Düsenanordnung
- 40
- Verteilerrohr der Düsenanordnung 48
- 42
- Lager des Verteilerrohrs 40
- 44
- Antriebseinrichtung für Verteilerrohr 40
- 48
- zweite Düsenanordnung
- 50
- Verteilerrohr der Düsenanordnung 38
- 52
- Lager des Verteilerrohrs 50
- 54
- Antriebseinrichtung für Verteilerrohr 50
- 58
- Luftdüse
- 60
- Öffnung der Düse 58
- 68
- Luftdüse
- 70
- Öffnung der Düse 68
- 78
- Blasrohr
- 80
- Düse des Blasrohrs 78
- 88
- Blasrohr
- 90
- Düse des Blasrohrs 88
- 100
- zusätzliche Blaseinrichtung
- 102
- zusätzliche Blaseinrichtung
- 104
- steuerbares Ventil
- 106
- steuerbares Ventil
- 144
- Hebel des Verteilerrohrs 40
- 154
- Hebel des Verteilerrohrs 50
Claims (16)
- Vorrichtung zum Hindurchführen einer laufenden bedruckten Bahn (8) zwischen einem ersten und einem zweiten voneinander abgestellten Gummi- oder Beschichtungszylinder (4, 12) eines Druckwerks einer Rollenrotationsdruckmaschine,
gekennzeichnet durch
eine erste, stromaufwärts des zwischen den abgestellten Zylindern geformten Spalts auf einer ersten Seite (6) der Bahn (8) angeordnete Blaseinrichtung (16), zur Zufuhr von Blasluft in einen ersten, zwischen der ersten Seite (6) der Bahn (8) und dem ersten Zylinder (4) gebildeten Raum, sowie eine zweite, stromaufwärts des zwischen den abgestellten Zylindern geformten Spalts auf einer zweiten Seite (14) der Bahn (8) angeordnete Blaseinrichtung (26), zur Zufuhr von Blasluft in einen zweiten, zwischen der zweiten Seite (14) der Bahn (8) und dem zweiten Zylinder (12) gebildeten Raum, in der Weise, daß zwischen der Bahn (8) und der Oberfläche des jeweiligen ersten und zweiten Zylinders (4, 12) ein Luftstrom gebildet wird, der eine Berührung zwischen der laufenden Bahn (8) und den Oberflächen der Zylinder (4, 12) verhindert. - Vorrichtung nach Anspruch 1,
dadurch gekennzeichnet,
daß die erste Blaseinrichtung (16) eine oder mehrere Luftdüsen (38) umfaßt. - Vorrichtung nach Anspruch 2,
dadurch gekennzeichnet,
daß die Luftdüsen (38) der ersten Blaseinrichtung (16) eine sich in Richtung des zwischen dem ersten Zylinder (4) und der ersten Seite (6) der Bahn (8) gebildeten ersten Raums hin verjüngende Form aufweist. - Vorrichtung nach Anspruch 2 oder 3,
dadurch gekennzeichnet,
daß die Luftdüsen (38) der ersten Blaseinrichtung (16) eine längliche Düsenöffnung (60) aufweisen, die sich im wesentlichen quer zur Laufrichtung der Bahn (8) erstreckt. - Vorrichtung nach Anspruch 1,
dadurch gekennzeichnet,
daß die erste Blaseinrichtung (16) ein Blasrohr (78) umfaßt. - Vorrichtung nach Anspruch 5,
dadurch gekennzeichnet,
daß das Blasrohr (78) eine sich in Richtung des zwischen dem ersten Zylinder (4) und der ersten Seite (6) der Bahn (8) gebildeten ersten Raums hin verjüngende Form aufweist. - Vorrichtung nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
daß die zweite Blaseinrichtung (26) eine oder mehrere Luftdüsen (68) umfaßt. - Vorrichtung nach Anspruch 7,
dadurch gekennzeichnet,
daß die Luftdüsen (48) der zweiten Blaseinrichtung (26) eine sich in Richtung des zwischen dem zweiten Zylinder (12) und der zweiten Seite (14) der Bahn (8) gebildeten zweiten Raums hin verjüngende Form aufweist. - Vorrichtung nach Anspruch 7,
dadurch gekennzeichnet,
daß die Luftdüsen (48) der zweiten Blaseinrichtung (26) eine längliche Düsenöffnung (70) aufweisen, die sich im wesentlichen quer zur Laufrichtung der Bahn (8) erstreckt. - Vorrichtung nach Anspruch 2,
dadurch gekennzeichnet,
daß die zweite Blaseinrichtung (26) ein Blasrohr (88) umfaßt. - Vorrichtung nach Anspruch 10,
dadurch gekennzeichnet,
daß das Blasrohr (88) der zweiten Blaseinrichtung (26) eine sich in Richtung des zwischen dem zweiten Zylinder (12) und der zweiten Seite (14) der Bahn (8) gebildeten zweiten Raums hin verjüngende Form aufweist. - Vorrichtung nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
daß ein Ventil (34) vorgesehen ist, durch welches die erste Blaseinrichtung (16) und die zweite Blaseinrichtung (26) gleichzeitig steuerbar sind. - Vorrichtung nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
daß Einrichtungen (44, 54; 144, 154) zum Schwenken der ersten und/oder zweiten Blaseinrichtung (16, 26) um eine zur Achse des ersten Zylinders (4) im wesentlichen parallel verlaufende Achse vorgesehen sind. - Vorrichtung nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
daß auf der stromabwärtigen Seite der ersten und zweiten Zylinder (4, 12), auf der ersten Seite (6) der Bahn (8) eine zusätzliche Blaseinrichtung (100) vorgesehen ist, die Blasluft in den zwischen der ersten Seite (6) der Bahn (8) und dem ersten Zylinder (4) gebildeten Raum zuführt. - Vorrichtung nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
daß auf der stromabwärtigen Seite der ersten und zweiten Zylinder (4, 12) auf der zweiten Seite (14) der Bahn (8) eine zusätzliche Blaseinrichtung (102) vorgesehen ist, die Blasluft in den zwischen der zweiten Seite (14) der Bahn (8) und dem zweiten Zylinder (12) gebildeten Raum zuführt. - Verfahren zum Hindurchführen einer laufenden bedruckten Bahn zwischen voneinander abgestellten ersten und zweiten Gummi- oder Beschichtungszylindern eines stillgesetzten Druckwerks einer Rollenrotationsdruckmaschine,
gekennzeichnet durch folgende Verfahrensschritte:
Zuführen von Blasluft in einen zwischen der ersten Seite der Bahn und dem ersten Zylinder gebildeten ersten Raum auf der stromaufwärtigen Seite des zwischen den abgestellten Zylindern geformten Spalts; und Zuführen von Blasluft in einen zwischen der zweiten Seite der Bahn und dem zweiten Zylinder gebildeten zweiten Raum auf der stromaufwärtigen Seite des zwischen den abgestellten Zylindern geformten Spalts in der Weise, daß zwischen der Bahn und der Oberfläche des jeweiligen ersten und zweiten Zylinders ein Luftstrom gebildet wird, der eine Berührung zwischen der laufenden Bahn und den Zylindern verhindert.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US59599196A | 1996-02-09 | 1996-02-09 | |
US595991 | 1996-02-09 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0788878A1 EP0788878A1 (de) | 1997-08-13 |
EP0788878B1 true EP0788878B1 (de) | 2000-05-17 |
Family
ID=24385566
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96120244A Expired - Lifetime EP0788878B1 (de) | 1996-02-09 | 1996-12-17 | Vorrichtung und Verfahren zum Führen einer Bahn zwischen zwei Zylinder einer Druckmaschine |
Country Status (4)
Country | Link |
---|---|
US (1) | US5924619A (de) |
EP (1) | EP0788878B1 (de) |
JP (1) | JPH09216332A (de) |
DE (1) | DE59605245D1 (de) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EA001059B1 (ru) * | 1997-07-15 | 2000-08-28 | Даниэли Э К.Оффичине Мекканике С.П.А. | Устройство для намотки горячего проката, например полосы или листа, и способ намотки |
CH693304A5 (de) * | 1997-08-01 | 2003-05-30 | Roland Man Druckmasch | Wendestange und Wendestangenanordnung für eine Rollenrotationsdruckmaschine. |
US6095391A (en) * | 1998-08-04 | 2000-08-01 | Roll Systems, Inc. | Method and apparatus for loop stabilization with forced air |
US6578789B1 (en) * | 1998-08-04 | 2003-06-17 | Sms Schloemann-Siemag Aktiengesellschaft | Deflection method and deflection device for a strip, especially a metal strip |
JP4544722B2 (ja) * | 2000-10-05 | 2010-09-15 | 三菱重工業株式会社 | 印刷機の紙パス変更装置 |
DE10132156C5 (de) | 2001-07-03 | 2011-12-01 | Manroland Ag | Bahnstabilisierung zur berührungslosen Bahnführung bei fliegend wechselbaren Druckeinheiten |
US6842996B2 (en) * | 2002-08-31 | 2005-01-18 | Day International, Inc. | Segmented air distribution bar |
US20070175346A1 (en) * | 2006-02-02 | 2007-08-02 | Goss International Americas, Inc. | Reverse air flow web stabilizer |
US8584584B2 (en) * | 2006-02-23 | 2013-11-19 | Goss International Americas, Inc. | Noncontact web stabilizer |
US20080223236A1 (en) * | 2006-05-02 | 2008-09-18 | Komori Corporation | Sheet processing device |
FR2905302B1 (fr) * | 2006-09-04 | 2008-11-07 | Diffusion De Materiel Et D Imp | Dispositif de compensation de la variation de largeur d'un support d'impression souple et machine a imprimer comportant un tel dispositif. |
US8042807B2 (en) * | 2006-12-21 | 2011-10-25 | Palo Alto Research Center Incorporated | Transport for printing systems |
US10119761B1 (en) * | 2014-03-20 | 2018-11-06 | Randy Scheurer | Paint card drying board and paint card drying methods |
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GB1461572A (en) * | 1973-03-09 | 1977-01-13 | Masson Scott Thrissell Eng Ltd | Web guide sysstems |
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DE1129965B (de) * | 1960-04-06 | 1962-05-24 | Roland Offsetmaschf | Vorrichtung zum Spannen der Papierbahn in Rotationsdruckmaschinen |
DE1183665B (de) * | 1962-12-22 | 1964-12-17 | J H Benecke Fa | Einrichtung zum Abheben der Randstreifen von auf Schneidwalzen beschnittenen Folienbahnen aus thermoplastischem Kunststoff von deren Oberflaeche |
NL293520A (de) * | 1963-01-11 | |||
NL6703207A (de) * | 1966-04-26 | 1967-10-27 | ||
US3482655A (en) * | 1968-06-20 | 1969-12-09 | Dayton Steel Foundry Co | Disk brake and adjusting means therefor |
DE2150986C3 (de) * | 1971-10-13 | 1980-09-25 | Maschinenfabrik Augsburg-Nuernberg Ag, 8900 Augsburg | Vorrichtung zur Beeinflussung der Durchwölbung einer Druckträgerbahn zwischen mindestens zwei Druckwerken einer Rollenrotationsdruckmaschine |
DE2822137C2 (de) | 1978-05-20 | 1984-05-30 | Albert-Frankenthal Ag, 6710 Frankenthal | Maschine zur Verarbeitung bahnförmigen Materials |
JPS55115546A (en) * | 1979-02-23 | 1980-09-05 | Fujitsu Ltd | Paper folder |
US4285452A (en) * | 1979-02-26 | 1981-08-25 | Crown Zellerbach Corporation | System and method for dispersing filaments |
CH660332A5 (en) * | 1981-12-31 | 1987-04-15 | Roland Man Druckmasch | Web-fed offset rotary printing machine |
JPS61277542A (ja) * | 1985-06-01 | 1986-12-08 | Ishizu Seisakusho:Kk | 連続紙の紙粉除去方法及び連続紙の紙粉除去装置 |
DE3706541A1 (de) * | 1987-02-28 | 1988-09-08 | Voith Gmbh J M | Vorrichtung zum stabilisieren des laufes einer warenbahn, insbesondere zum stabilisieren einer papierbahn in der trockenpartie einer papiermaschine |
DE3706542A1 (de) * | 1987-02-28 | 1988-09-08 | Voith Gmbh J M | Luftleitkasten fuer die trockenpartie einer schnellaufenden papiermaschine |
DE3739338C2 (de) * | 1987-11-20 | 1995-09-07 | Voith Gmbh J M | Luftleitkasten zum Stabilisieren des Laufs einer Warenbahn, insbesondere einer Papierbahn |
JP2597129B2 (ja) * | 1988-02-15 | 1997-04-02 | コニカ株式会社 | ウエブ振動吸収装置 |
DE3917845A1 (de) * | 1989-06-01 | 1990-12-06 | Roland Man Druckmasch | Schneidvorrichtung fuer ein falzwerk einer druckmaschine |
JPH03125623A (ja) * | 1989-10-11 | 1991-05-29 | Matsushita Electric Ind Co Ltd | 車載用空気清浄機 |
JP2616099B2 (ja) * | 1990-02-27 | 1997-06-04 | 三菱電機株式会社 | ワイヤ放電加工装置 |
DE4113465A1 (de) * | 1991-04-25 | 1992-10-29 | Heidelberger Druckmasch Ag | Vorrichtung zum schwebenden fuehren und/oder foerdern von bahnen oder bogen |
-
1996
- 1996-12-17 EP EP96120244A patent/EP0788878B1/de not_active Expired - Lifetime
- 1996-12-17 DE DE59605245T patent/DE59605245D1/de not_active Expired - Lifetime
-
1997
- 1997-02-07 JP JP9024659A patent/JPH09216332A/ja active Pending
- 1997-08-15 US US08/911,997 patent/US5924619A/en not_active Expired - Lifetime
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GB1461572A (en) * | 1973-03-09 | 1977-01-13 | Masson Scott Thrissell Eng Ltd | Web guide sysstems |
Also Published As
Publication number | Publication date |
---|---|
EP0788878A1 (de) | 1997-08-13 |
DE59605245D1 (de) | 2000-06-21 |
JPH09216332A (ja) | 1997-08-19 |
US5924619A (en) | 1999-07-20 |
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