EP3830010A1 - Bahnüberführung - Google Patents
BahnüberführungInfo
- Publication number
- EP3830010A1 EP3830010A1 EP19725979.9A EP19725979A EP3830010A1 EP 3830010 A1 EP3830010 A1 EP 3830010A1 EP 19725979 A EP19725979 A EP 19725979A EP 3830010 A1 EP3830010 A1 EP 3830010A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- material web
- web
- suction device
- transfer strip
- guide element
- 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
- B65H19/105—Opening of web rolls; Removing damaged outer layers; Detecting the leading end of a closed web roll
-
- 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
- B65H2406/00—Means using fluid
- B65H2406/30—Suction means
- B65H2406/33—Rotary suction means, e.g. roller, cylinder or drum
Definitions
- the invention relates to a method for transferring the material web of a winding roll to a subsequent machine unit.
- the object of the invention is therefore to enable a simple and safe web transfer.
- the object was achieved in that the beginning of the web of material is gripped by a suction device, the suction device with the web of material is moved away from the winding roll, a transfer strip is separated from a separating device arranged between the winding roll and the suction device moved away, and this transfer strip is conveyed by a conveyor is fed.
- the transfer strip is formed quickly and with safe web guidance.
- the suction device In order to facilitate the detection of the start of the web, the suction device should be brought into contact with the winding roll.
- the fixing of the material web to the suction device can be improved if the latter is designed as a suction roller and the material web is wound one or more times around the suction device after detecting the beginning of the web and before and / or while the suction device is moving away.
- the separating device should separate a preferably pointed and continuously widening transfer strip from the material web.
- the cutting can be done mechanically, by laser or by means of a pressure fluid such as water or air.
- the transfer strip lies on a web edge, a separating element is sufficient for this.
- the tip of the transfer strip is located in the central region, in particular in the middle of the web of the material web, which is preferably done by means of two separating elements.
- the material web should be deflected as directly as possible before and / or as immediately as possible after the separating device on a respective guide element.
- the transfer strip loops around the guide element between the separating device and the suction device less than the rest of the material web.
- the detachment of the transfer strip from the rest of the material web can be supported in that the rest of the material web wraps around the guide element with at least 45 °, preferably at least 60 ° and / or inclined at an angle of at most 45 °, preferably at most 30 ° to the vertical runs towards the top of the guide element and / or the transfer strip is moved away from the rest of the material web by means of a pressure fluid.
- the guide elements arranged before and / or after the separating device should have a curved, in particular convex or concave, contour.
- the curved contour can extend over the entire web width or only over a part thereof, preferably in the area of the beginning of the transfer strip.
- the conveyor device for the continuation of the transfer strip should be formed by belts and / or rollers. Regardless of this, the guidance of the transfer strip on the conveyor device can be improved if it has at least one suctioned section.
- the invention is particularly suitable for a material web in the form of a paper, cardboard or other fibrous web which is to be guided to a slitter winder.
- the invention is explained in more detail below using an exemplary embodiment.
- the figure shows a system diagram according to the invention.
- a material web in particular a paper or cardboard web, is to be unwound from a winding roll 2, which may well be 10 m wide, and fed to a machine unit following in web direction 9.
- the following machine can in particular be a winder that divides the web into several partial webs and winds them up again separately.
- a suction device 3 in the form of a cylindrical, rotating suction roll is brought into contact with the winding roll 2 and the beginning of the web of the material web 1 is wound several times around this suction roll. In this way, the material web 1 is securely fixed to the suction device 3.
- the suction device 3 with the material web 1 is then pivoted downward and a separating device 4 between the winding roll 2 and the suction device 3 is moved to the underside of the material web 1.
- the material web 1 wraps around a guide element 7, 8 in the form of a cylindrical guide roller immediately before and immediately after the separating device 4, which is coupled to the separating device 4 to simplify the construction.
- the separating device 4 has the task of separating a pointed and continuously widening transfer strip 5 from the material web 1, the tip of which lies in the middle of the web.
- the separation can take place by means of a laser, mechanically by means of blades or knives or by means of pressurized fluid by means of pressure nozzles.
- two separating elements for example two pressing nozzles of the separating device 4, are used, which are directed at the beginning of the separation towards the tip of the transfer strip 5 to be produced and while the material web 1 continues to run along the separating device 4, continuously and transversely to the web running direction 9 be moved to one edge of the web.
- the transfer strip 5 is guided away from the rest of the material web 1 in the wrapping area of the guide element 7 immediately following the separating device 4.
- the material web 1 runs along the separating device 4 perpendicularly from above to the guide element 7.
- the guide element 7 is wrapped at an angle of approximately 90 ° by the material web 1 and from there to the suction device 3.
- the detachment of the transfer strip 5 from the guide element 7 can also be supported by compressed air nozzles.
- the transfer strip 5 is then guided by a conveying device 6 to the feed table of the roll cutter.
- the conveying device 6 begins below the guide element 7 and essentially consists of endlessly circulating belts and rollers, which can be vacuumed at least in sections for support.
Landscapes
- Replacement Of Web Rolls (AREA)
- Advancing Webs (AREA)
- Cigarettes, Filters, And Manufacturing Of Filters (AREA)
- Preliminary Treatment Of Fibers (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102018118219.8A DE102018118219A1 (de) | 2018-07-27 | 2018-07-27 | Bahnüberführung |
| PCT/EP2019/063024 WO2020020511A1 (de) | 2018-07-27 | 2019-05-21 | Bahnüberführung |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3830010A1 true EP3830010A1 (de) | 2021-06-09 |
| EP3830010B1 EP3830010B1 (de) | 2023-03-08 |
Family
ID=66640974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19725979.9A Active EP3830010B1 (de) | 2018-07-27 | 2019-05-21 | Bahnüberführung |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3830010B1 (de) |
| DE (1) | DE102018118219A1 (de) |
| FI (1) | FI3830010T3 (de) |
| WO (1) | WO2020020511A1 (de) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61137626A (ja) * | 1984-12-10 | 1986-06-25 | Mitsubishi Heavy Ind Ltd | 帯板材のスレツデイング装置 |
| IT1238312B (it) * | 1990-04-04 | 1993-07-12 | Gd Spa | Metodo per la sostituzione di materiale in nastro in una macchina operatrice. |
| FI99283C (fi) * | 1996-07-16 | 1998-06-10 | Valmet Corp | Menetelmä paperirainan tai vastaavan rainamaisen materiaalin päänviennissä rullauslaitteessa, erityisesti pituusleikkurissa sekä laite menetelmän toteuttamiseksi |
| DE20314840U1 (de) * | 2003-09-25 | 2003-11-20 | Achenbach Buschhütten GmbH, 57223 Kreuztal | Vorrichtung zum Einführen von Bandmaterial und Besäumen der Bandkanten für Bandbearbeitungsmaschinen, insbesondere Feinband- und Folienwalzwerke |
-
2018
- 2018-07-27 DE DE102018118219.8A patent/DE102018118219A1/de not_active Withdrawn
-
2019
- 2019-05-21 EP EP19725979.9A patent/EP3830010B1/de active Active
- 2019-05-21 WO PCT/EP2019/063024 patent/WO2020020511A1/de not_active Ceased
- 2019-05-21 FI FIEP19725979.9T patent/FI3830010T3/fi active
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020020511A1 (de) | 2020-01-30 |
| FI3830010T3 (fi) | 2023-05-26 |
| EP3830010B1 (de) | 2023-03-08 |
| DE102018118219A1 (de) | 2020-01-30 |
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