EP3962848A1 - Abwickelstation - Google Patents
AbwickelstationInfo
- Publication number
- EP3962848A1 EP3962848A1 EP20706241.5A EP20706241A EP3962848A1 EP 3962848 A1 EP3962848 A1 EP 3962848A1 EP 20706241 A EP20706241 A EP 20706241A EP 3962848 A1 EP3962848 A1 EP 3962848A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- primary
- unwinding
- unwinding device
- roll
- running
- 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
- B65H19/18—Attaching, e.g. pasting, the replacement web to the expiring web
- B65H19/1805—Flying splicing, i.e. the expiring web moving during splicing contact
- B65H19/1826—Flying splicing, i.e. the expiring web moving during splicing contact taking place at a distance from the replacement roll
- B65H19/1831—Flying splicing, i.e. the expiring web moving during splicing contact taking place at a distance from the replacement roll the replacement web being stationary prior to splicing contact
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H16/00—Unwinding, paying-out webs
- B65H16/02—Supporting web roll
- B65H16/06—Supporting web roll both-ends type
-
- 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
- B65H2301/41—Winding, unwinding
- B65H2301/413—Supporting web roll
- B65H2301/4136—Mounting arrangements not otherwise provided for
- B65H2301/41366—Mounting arrangements not otherwise provided for arrangements for mounting and supporting and -preferably- driving the (un)winding shaft
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
- B65H2511/10—Size; Dimensions
- B65H2511/12—Width
-
- 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
- B65H2801/84—Paper-making machines
Definitions
- the invention relates to a device for unwinding a web of material, in particular a paper or cardboard web, from a winding roll for a subsequent machine unit for processing the web of material, the journals of which are mounted in journal bearings with a rotatable outer ring, with a primary unwinding device, a secondary unwinding device and a gluing and separating device, the primary and the secondary unwinding device for moving the winding roll from the primary to the secondary unwinding device each having two running surfaces running parallel to one another and coming into contact with corresponding mating surfaces of the rotatable outer rings of the journal bearings.
- Unwind stations of the type discussed here serve for the continuous unwinding of a material web from a winding roll and are arranged upstream of a machine for processing the material web, for example a coating machine or a calender.
- a known unwinding station comprises a primary and a secondary unwinding device, which serve to guide a winding roll.
- a full winding roll is first guided by the primary unwinding device while the material web is being unwound. When the winding roll has a desired diameter, it is transferred from the primary to the secondary unwinding device.
- a new, full winding roll is then fed to the primary unwinding device and the web of material wound on it is connected to the unwinding roll of material guided by the secondary unwinding device before it is completely unwound.
- a gluing device is provided, which often has a swiveling gluing roller about an axis via which the material web running from the secondary unwinding device is guided to the following material web processing machine - seen in the direction of travel of the material web.
- the adhesive roller is pivoted and pressed against the winding roller guided by the primary unwinding device.
- the Secondary unwinding device guided winding roll cut off the running material web by means of a cutting device.
- Carrier roller winding machines have two driven carrier rollers on which the winding rollers lie next to one another with aligned sleeves during winding.
- the support roller winding machines have a roll ejection device which, when a roll is changed, ejects a set of fully wound winding rolls from the roll bed formed by the two support rollers. The finished set of winding rolls is pressed by the ejector device over the top of a support roller onto a lowering platform.
- swivel arms are used, for example, which can be pivoted about an axis and engage on both sides of the winding roll and transfer it to the secondary unwinding device by means of a swivel movement.
- the object of the invention is therefore to reduce the effort for unwinding the material web.
- the object was achieved in that the axial position of the running surfaces of the primary and secondary unwinding device is adjustable and the respective running surfaces of the primary and secondary unwinding device are directly adjacent to one another.
- the transport of the winding roll is simplified if the running surfaces of the primary and secondary unwinding devices run horizontally or are slightly inclined in the transport direction.
- the running surfaces of the primary and secondary unwinding devices and the corresponding mating surfaces of the rotatable outer rings of the journal bearings should have a shape that axially guides the respective outer ring.
- the outer rings of the journal bearings of the winding roll should each have a complementary circumferential groove into which the corresponding rail of the primary and secondary unwinding device protrudes.
- the outer rings of the journal bearings each have a circumferential ring which is inserted into a complementary groove of the corresponding running surface of the primary and / or the secondary unrolling device protrudes.
- Figures 1 to 5 each schematic side views of a device for
- Figure 7 the outer ring 10 to be guided of the journal bearing 15 of the
- a material web 1 is unwound from the full winding roll 2 in the primary unwinding device 5 by a first drive during the unwinding process according to FIG.
- the winding roll 3 Simultaneously with the still full winding roll 2 (full reel, “mother roll”), the winding roll 3, which has essentially already been unwound, is unwound in the secondary unwinding device 6 by a second drive up to the end of a material web 1.
- the power of the second drive is such that its drive motor is just sufficient to generate a small torque to enable the remaining unwinding of the material web 1 from the winding roll 3 in the secondary unwinding device 6.
- the first drive is dimensioned so that its torque is sufficient to remove the material web 1 from the still full one Winding roll 2, which can have a diameter of, for example, 3500 mm and above, unwind.
- the drives can be stationary or movable.
- the unwound material web 1 can be deflected over one or more guide rollers 9 to stabilize the web run.
- the web tension is regulated during the entire process, which counteracts winding errors.
- the material web 1 is divided into several individual webs of adjustable width by means of a known one, not shown Cutting section. These individual webs are then wound up on the set of tubes lying in a winding bed to form shipping rolls.
- the winding roll 2, 3 is axially fixed in a fixed mounting of the primary 5 or the secondary unwinding device 6. This prevents the material web 1 from running axially during the unwinding and thus also during the cutting of the web and the rewinding of the partial webs.
- the respective running surfaces 12 of the primary 5 and the secondary roller device 6 border directly, i.e. without the interposition of another unit, to each other.
- the outer rings 10 of the journal bearings 15 of the winding roll 2, 3 according to FIG. 7 each have a circumferential groove 13 complementary to the running rails, into which the corresponding running rail of the primary 5 or secondary unwinding device 6 intervenes.
- journal journals 14 or the journal bearing 15 are each in a receiving fork or the like. stored.
- the axial position of the bearing, in particular each running rail of both unwinding devices 5,6, is to adapt to the conditions of the respective winding roll 2,3 axially adjustable separately.
- the outer rings 10 of the journal bearings 15 within the Unwinding devices 5, 6 slide or preferably roll on the running rails 12, which significantly simplifies the transfer of the winding roll 2 from the primary unwinding device 5 to the secondary unwinding device 6.
- the outer rings 10 of the journal bearings 15 each have a circumferential ring 8 in FIG.
Landscapes
- Replacement Of Web Rolls (AREA)
- Unwinding Webs (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102019111470.5A DE102019111470B4 (de) | 2019-05-03 | 2019-05-03 | Abwickelstation |
| PCT/EP2020/054415 WO2020224820A1 (de) | 2019-05-03 | 2020-02-20 | Abwickelstation |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP3962848A1 true EP3962848A1 (de) | 2022-03-09 |
| EP3962848C0 EP3962848C0 (de) | 2024-01-03 |
| EP3962848B1 EP3962848B1 (de) | 2024-01-03 |
Family
ID=69631614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20706241.5A Active EP3962848B1 (de) | 2019-05-03 | 2020-02-20 | Abwickelstation |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3962848B1 (de) |
| CN (1) | CN113795445B (de) |
| DE (1) | DE102019111470B4 (de) |
| WO (1) | WO2020224820A1 (de) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1250709B (de) * | 1961-07-08 | 1967-09-21 | ||
| DE1574632B1 (de) * | 1968-01-09 | 1971-02-25 | Zum Bruderhaus Gmbh Maschf | Vorrichtung zum ununterbrochenen Abwickeln einer Bahn,insbesondere einer Papierbahn |
| DE102005000187A1 (de) | 2005-12-16 | 2007-06-21 | Voith Patent Gmbh | Vorrichtung und Verfahren zum Abwickeln einer Materialbahn |
| FI121303B (fi) * | 2008-07-03 | 2010-09-30 | Metso Paper Inc | Kuiturainan pituusleikkurijärjestely ja menetelmä kuiturainan pituusleikkaamiseksi |
| FI20105840A7 (fi) * | 2010-08-09 | 2012-02-10 | Metso Paper Inc | Siirto- ja varastointijärjestely kuiturainakoneen konerullien, tampuuritelojen ja/tai hylkyrullien käsittelyssä |
| DE102016211582A1 (de) * | 2016-06-28 | 2017-03-23 | Voith Patent Gmbh | Abrollstation |
| DE102017118312A1 (de) | 2017-08-11 | 2019-02-14 | Voith Patent Gmbh | Abrollstation |
-
2019
- 2019-05-03 DE DE102019111470.5A patent/DE102019111470B4/de not_active Withdrawn - After Issue
-
2020
- 2020-02-20 EP EP20706241.5A patent/EP3962848B1/de active Active
- 2020-02-20 CN CN202080033018.5A patent/CN113795445B/zh active Active
- 2020-02-20 WO PCT/EP2020/054415 patent/WO2020224820A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| CN113795445A (zh) | 2021-12-14 |
| WO2020224820A1 (de) | 2020-11-12 |
| DE102019111470B4 (de) | 2022-06-02 |
| DE102019111470A1 (de) | 2020-11-05 |
| EP3962848C0 (de) | 2024-01-03 |
| EP3962848B1 (de) | 2024-01-03 |
| CN113795445B (zh) | 2023-10-10 |
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