EP1200329A1 - Verfahren und vorrichtung zum kürzen der fahne im anschluss an einen fliegenden rollenwechsel - Google Patents
Verfahren und vorrichtung zum kürzen der fahne im anschluss an einen fliegenden rollenwechselInfo
- Publication number
- EP1200329A1 EP1200329A1 EP00947916A EP00947916A EP1200329A1 EP 1200329 A1 EP1200329 A1 EP 1200329A1 EP 00947916 A EP00947916 A EP 00947916A EP 00947916 A EP00947916 A EP 00947916A EP 1200329 A1 EP1200329 A1 EP 1200329A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- paper web
- web
- flag
- straight section
- roll
- 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.)
- Granted
Links
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
- B65H19/00—Changing the web roll
- B65H19/10—Changing the web roll in unwinding mechanisms or in connection with unwinding operations
- B65H19/20—Cutting-off the expiring 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
- B65H2301/40—Type of handling process
- B65H2301/46—Splicing
- B65H2301/461—Processing webs in splicing process
- B65H2301/4615—Processing webs in splicing process after splicing
- B65H2301/46152—Processing webs in splicing process after splicing cutting off tail after (flying) splicing
Definitions
- the invention relates to a method according to the preamble of claim 1 and a device suitable for carrying out this method according to the preamble of claim 2.
- Continuously operating paper processing machines are loaded with paper webs that are unwound from reels.
- a roll ends, it is replaced with a new roll without stopping the processing machine.
- Roll changers are known which work with the so-called "flying roll change".
- the beginning of a new roll which is on hold is first provided with an adhesive tip.
- the new roll is set in rotation and brought to a peripheral speed which corresponds to the speed of the is synchronized from the almost empty roll running off.
- the web is pressed onto the new roll at the right time so that it touches it in the area of the adhesive tip.
- the beginning of the new web is glued to the running web.
- the running web becomes short separated behind the glue point.
- the section of the old web referred to as the so-called “adhesive flag” should have a predetermined length from the adhesive point to the severed end, so that the adhesive flag passes through the printing press no interference occur.
- the flags in the downstream processing stations can also cause interference if they are all of a uniform prescribed length. Since the cut always only with a due to the inertia of the cutting device and the cycle times of the control If there is a delay, the flag cannot be cut as short as desired. For example, if the delay time is 10 m / s and the web speed is 15 m / s, the flag is at least 150 mm long.
- the new web is first guided parallel to the running web in a connecting section with a short distance and accelerated to its speed. Then one of the two webs is pressed onto an adhesive strip glued on both sides between the webs, and then pressed together with the adhesive strip onto the other web. The trailing end of the running web is cut off with a knife arranged at the beginning of the connecting section. The section of the running web between the glue point and the interface is the flag. At the end of the connecting section, a second knife is arranged at a short distance from the lateral surface of a deflection roller, the cutting edge of which is directed against the running direction of the paper web.
- This knife is used to cut off the leading start of the new path. It is not suitable for shortening the flag, since it is located on the inside of the sheet as the web passes through the deflection roller, so that it is clamped between the web and the outer surface of the deflection roller. Based on the knowledge that the development of a disruptive flag can hardly be avoided with today's technical means, the inventors have set themselves the task of specifying a method by which the flag is subsequently shortened to a harmless level before it is used in downstream processing stations arrives. It is also part of the task to create suitable devices for carrying out the new method.
- the first part of the object is achieved by the characterizing features of claim 1, the second part by the characterizing features of claim 2. Further advantageous features of the invention are the subject of claims 3 to 11.
- a paper web 1 runs through a straight section 4 in the direction of arrow 5 between an inlet-side deflection roller 2 and an outlet-side deflection roller 3 15 - 50 cm long flag 6 hangs, a knife 7 arranged, the serrated edge of the
- blowing nozzle 8 at the beginning of the straight section 4, which extends across the width of the paper web 1. Their blowing direction is at an acute angle to the paper web 1.
- Blower nozzle 8 pressurized with compressed air.
- the flow speed is higher, preferably considerably higher than the path speed.
- the flag 6 has passed the blowing nozzle 8, it is separated from the paper web 1 and erected by the underpressure generated by the air flow.
- the straightening effect is supported by the centrifugal force acting on the deflection roller 2 in the deflection area.
- the flag 6 maintains its substantially perpendicular orientation to the paper web 1 until it reaches the knife 7. There it is cut to a remainder of a few mm, which essentially corresponds to the distance of the knife 7 from the paper web 1.
- the process is repeated with every roll change, ie at intervals of around 15 - 60 min.
- the blowing nozzle 8 is arranged obliquely above the deflection roller 2 on the inlet side.
- the blow jet strikes the paper web 1 in the wrapping area or even before the wrapping area. Due to the Coanda effect, the air flow nestles against the paper web 1 and accompanies it at least up to the knife 7.
- the deflection causes the air flow to widen and even out in the direction perpendicular to the paper web.
- the knife 7 is fastened to an extra-rod 9. In the active position illustrated in FIG. 2, the rod 9 touches the paper web 1 running tangentially without deflecting it appreciably. This prevents the paper web from fluttering under the influence of the air flow.
- the knife 7 is brought into the ready position by pivoting the rod 9 in the direction of the arrow 10, in which the rod 9 no longer touches the paper web. It remains in this position until the next flag approaches.
- the exemplary embodiment according to FIG. 3 differs from that of FIG. 2 in that the straight section 4 is assigned a guide plate 11 aligned approximately parallel to the continuous paper web, so that there is a channel between the paper web 1 and the guide plate 11. As a result, the air flow which causes the flag 6 to be raised is guided and held together.
- Another difference from Figure 2 is that as a support for the
- Paper web 1 a rod or roll 12 is provided, which is arranged on the back of the paper web 1. It is attached to a swivel arm 13, which allows swiveling in the direction of arrow 14 from the active position illustrated in FIG. 3 to a ready position.
- an additional deflection roller 15 is connected upstream of the deflection roller 2 on the inlet side in the web run.
- the blowing nozzle 8 is already above the deflecting roller 15 arranged so that the blowing jet strikes the paper web 1 in the looping area, depending on the position of the blowing nozzle 18 even before the run-up line.
- the air flow is deflected by the Coanda effect both on the deflection roller 15 and on the deflection roller 2.
- a suction box 16 is arranged next to the knife 7. It is equipped with an endless screen belt 17 guided over rollers, which rotates in the direction perpendicular to the plane of the drawing.
- a blower 18 is connected on the suction side to the suction chamber 16 and on the pressure side to the blower nozzle 8.
- a blow-out line is branched off from the line leading to the blower nozzle 8. With an actuator not visible in the drawing, the ratio between the air returned to the blowing nozzle 8 and the blown air can be influenced.
- the embodiment of Figure 4 has the advantage that the air is essentially circulated. In this way, nuisance to the operating personnel by the air blasts is avoided.
- a major advantage is also that the cut flag is automatically caught by the rotating screen belt 17 and then fed to a collecting container.
Landscapes
- Replacement Of Web Rolls (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19931797A DE19931797C1 (de) | 1999-07-08 | 1999-07-08 | Verfahren und Vorrichtung zum Kürzen der Fahne im Anschluß an einen fliegenden Rollenwechsel |
DE19931797 | 1999-07-08 | ||
PCT/EP2000/006207 WO2001004034A1 (de) | 1999-07-08 | 2000-07-04 | Verfahren und vorrichtung zum kürzen der fahne im anschluss an einen fliegenden rollenwechsel |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1200329A1 true EP1200329A1 (de) | 2002-05-02 |
EP1200329B1 EP1200329B1 (de) | 2003-04-09 |
Family
ID=7914063
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00947916A Expired - Lifetime EP1200329B1 (de) | 1999-07-08 | 2000-07-04 | Verfahren und vorrichtung zum kürzen der fahne im anschluss an einen fliegenden rollenwechsel |
Country Status (6)
Country | Link |
---|---|
US (1) | US6726614B1 (de) |
EP (1) | EP1200329B1 (de) |
JP (1) | JP3472572B2 (de) |
AT (1) | ATE236844T1 (de) |
DE (2) | DE19931797C1 (de) |
WO (1) | WO2001004034A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102016225980B4 (de) | 2016-12-22 | 2019-09-12 | Koenig & Bauer Ag | Vorrichtung zum Abschneiden einer an einer durch die Vorrichtung zu führenden Materialbahn hängenden Materialbahnfahne sowie Rollendruckmaschine |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10041969B4 (de) * | 2000-08-25 | 2012-03-29 | Goss Contiweb B.V. | Verfahren und Vorrichtung zum Kürzen der Fahne im Anschluss an einen Rollenwechsel |
DE102009005017A1 (de) | 2009-01-17 | 2010-07-22 | Bayer Materialscience Ag | Reaktive Polyurethan Zusammensetzungen |
DE102018108168A1 (de) * | 2018-04-06 | 2019-10-10 | Manroland Goss Web Systems Gmbh | Verhindern des Flatterns der Klebefahne im Foliendruck |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2013623A (en) * | 1933-04-14 | 1935-09-03 | Donald M Carter | Device for delivering paper to printing presses |
US2775409A (en) * | 1953-02-10 | 1956-12-25 | John Waldron Corp | Web roll replenisher |
DE2023100C3 (de) * | 1970-05-12 | 1981-08-06 | Hauni-Werke Körber & Co KG, 2050 Hamburg | Verfahren und Vorrichtung zum Herstellen einer Verbindung zwischen einem ablaufenden Streifen und einem neu bereitgestellten Streifen |
DE2619236C3 (de) * | 1976-04-30 | 1989-06-08 | Siemens AG, 1000 Berlin und 8000 München | Verfahren zur Steuerung des fliegenden Anschließens einer Bahn von einer zweiten Wickelrolle an eine von einer ersten Wickelrolle überlaufende Bahn |
US4173314A (en) * | 1978-04-17 | 1979-11-06 | Cary Metal Products, Inc. | Continuous web supply apparatus |
LU80589A1 (de) * | 1978-11-28 | 1980-06-05 | Hauni Werke Koerber & Co Kg | Bobinenwechselvorrichtung |
DE2911268C2 (de) * | 1979-03-22 | 1983-09-15 | Vits-Maschinenbau Gmbh, 4018 Langenfeld | Vorrichtung zum ununterbrochenen Abwickeln von Warenbahnen |
DE2919236C2 (de) | 1979-05-12 | 1982-08-12 | Kernforschungsanlage Jülich GmbH, 5170 Jülich | Magnetisches Schwebelager für einen Rotor |
IT1133400B (it) * | 1980-12-22 | 1986-07-09 | Gd Spa | Metodo e dispositivo per la sostituzione di una prima bobina di materiale in nastro di esaurimento con una seconda bobina nuova |
IT1178613B (it) * | 1983-11-24 | 1987-09-09 | Hauni Werke Koerber & Co Kg | Dispositivo cambia bobine |
DE3439313C2 (de) * | 1984-10-26 | 1994-07-07 | Focke & Co | Vorrichtung zum Verbinden von Bahnen aus Verpackungsmaterial |
DE3504536A1 (de) * | 1985-02-11 | 1986-08-14 | Karl-Heinz 6100 Darmstadt Sattler | Verfahren zur verklebung von bewegten materialbahnen, sowie klebeband und vorrichtung zur durchfuehrung des verfahrens |
DE3606319A1 (de) * | 1985-02-11 | 1987-09-03 | Sattler Karl Heinz | Verfahren zur verklebung von bewegten materialbahnen sowie klebeband und vorrichtung zur durchfuehrung des verfahrens |
US4729519A (en) * | 1986-10-14 | 1988-03-08 | Webquip Corporation | Web handling apparatus |
IT1241724B (it) * | 1990-06-06 | 1994-02-01 | Ricciarelli Garibaldo S R L | Metodo ed apparecchiatura per la giunzione di estremi di nastri di pellicola saldabile per la formazione di sacchetti ed altro |
DE4135101A1 (de) * | 1991-10-24 | 1993-04-29 | Koenig & Bauer Ag | Bahnzufuehrungsvorrichtung fuer papierrollenwechsel bei rotationsdruckmaschinen |
US5356496A (en) * | 1992-06-15 | 1994-10-18 | The Black Clawson Company | Splice tail tape-down method and apparatus |
US5827166A (en) * | 1993-12-16 | 1998-10-27 | Philip Morris Incorporated | Device for joining strips of a flexible material |
CA2169763C (en) * | 1994-06-16 | 2001-04-10 | Jorma Kinnunen | Splicing device for a continuous unwind stand |
DE29504553U1 (de) * | 1995-03-17 | 1995-06-14 | Voith Sulzer Papiermaschinen GmbH, 89522 Heidenheim | Vorrichtung zum Stabilisieren einer Warenbahn |
DE19804415C1 (de) * | 1998-02-05 | 1999-08-26 | Vits Maschinenbau Gmbh | Verfahren und Vorrichtung zum Kürzen der Fahne im Anschluß an einen fliegenden Rollenwechsel |
-
1999
- 1999-07-08 DE DE19931797A patent/DE19931797C1/de not_active Expired - Fee Related
-
2000
- 2000-07-04 US US10/019,001 patent/US6726614B1/en not_active Expired - Lifetime
- 2000-07-04 WO PCT/EP2000/006207 patent/WO2001004034A1/de active IP Right Grant
- 2000-07-04 AT AT00947916T patent/ATE236844T1/de not_active IP Right Cessation
- 2000-07-04 JP JP2001509658A patent/JP3472572B2/ja not_active Expired - Fee Related
- 2000-07-04 DE DE50001732T patent/DE50001732D1/de not_active Expired - Lifetime
- 2000-07-04 EP EP00947916A patent/EP1200329B1/de not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO0104034A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102016225980B4 (de) | 2016-12-22 | 2019-09-12 | Koenig & Bauer Ag | Vorrichtung zum Abschneiden einer an einer durch die Vorrichtung zu führenden Materialbahn hängenden Materialbahnfahne sowie Rollendruckmaschine |
Also Published As
Publication number | Publication date |
---|---|
ATE236844T1 (de) | 2003-04-15 |
US6726614B1 (en) | 2004-04-27 |
DE50001732D1 (de) | 2003-05-15 |
JP2003504292A (ja) | 2003-02-04 |
WO2001004034A1 (de) | 2001-01-18 |
JP3472572B2 (ja) | 2003-12-02 |
EP1200329B1 (de) | 2003-04-09 |
DE19931797C1 (de) | 2000-12-07 |
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