WO2003099690A1 - A method in reeling up, a reel-up and a reeling cylinder - Google Patents

A method in reeling up, a reel-up and a reeling cylinder Download PDF

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Publication number
WO2003099690A1
WO2003099690A1 PCT/FI2003/000408 FI0300408W WO03099690A1 WO 2003099690 A1 WO2003099690 A1 WO 2003099690A1 FI 0300408 W FI0300408 W FI 0300408W WO 03099690 A1 WO03099690 A1 WO 03099690A1
Authority
WO
WIPO (PCT)
Prior art keywords
reeling cylinder
reeling
rotor
cylinder
reel
Prior art date
Application number
PCT/FI2003/000408
Other languages
French (fr)
Inventor
Vesa Ahvenniemi
Teppo Kojo
Original Assignee
Metso Paper, Inc.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Metso Paper, Inc. filed Critical Metso Paper, Inc.
Priority to AU2003233825A priority Critical patent/AU2003233825A1/en
Publication of WO2003099690A1 publication Critical patent/WO2003099690A1/en

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
    • B65H18/00—Winding webs
    • B65H18/08—Web-winding mechanisms
    • B65H18/26—Mechanisms for controlling contact pressure on winding-web package, e.g. for regulating the quantity of air between web layers
    • 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 present invention relates to a method in reeling up, a reel-up and a reeling cylinder. It is possible to use a reeling cylinder in dif- ferent types of reel-ups, it can be used for example as a reeling cylinder in a so-called Pope-type reel-up and in reeling methods developed from the Pope-type reel-up and equipped with center drives.
  • the reel-up comprises a reeling cylinder and a reel spool.
  • the shell of the reeling cylinder rotates on bearings on the shaft at peripheral speed corresponding to the speed of the paper web to be reeled.
  • the reel spool around which paper is reeled is loaded against the reeling cylinder.
  • the reel spool can attain its rotating torque from the contact of the paper reel with the reeling cylinder, or it may be equipped with a center drive.
  • the reeling cylinder is connected to a drive, which, in turn, is connected to the drive of the entire machine in such a manner that the speed of the web to be reeled and the peripheral speed of the reeling cylinder can be adjusted on a substantially equal level.
  • an air bag may be formed before the reeling nip, which air bag can move towards the edges of the web and end up in the nip, wherein crepe wrinkles may appear in the paper, and because of said crepe wrinkles, the paper must be led to broke.
  • the large air volume to be removed requires a large opening through which it is discharged, and thus removal for example through the shaft is restricted because of the dimension limitations of the shaft.
  • a drive is usually connected to the shaft on the other end of the reeling cylinder, wherein air can be removed via the shaft only from one side.
  • the method according to the invention provides an improvement in view of the state of art.
  • the method according to the invention is characterized in that air is removed from inside the reeling cylinder by means of a rotor that is arranged to be rotatable.
  • the reel-up and reeling cylinder according to the invention are characterized in that the reeling cylinder comprises a rotor that is arranged to be rotatable.
  • the web tension is adjusted before the reel-up by means of the drive of the reeling cylinder.
  • the invention ensures sufficient hold between the web and the reeling cylinder especially when a lead-in strip that is sufficiently narrower than the width of the web is passed to the reel-up.
  • the shell of the reeling cylinder contains holes via which air is arranged to flow inside the reeling cylinder, and at least one of the ends of the cylinder is equipped with an air removal ro- tor that efficiently removes air from inside the reeling cylinder.
  • the air removal rotor can rotate with the reeling cylinder or it may rotate separately.
  • the rotor can be used with a separate drive, for example by means of belts, or the necessary force can be taken from the reeling cylinder.
  • the rotor can be located inside the reeling cylinder, or it may be located outside the reeling cylinder.
  • the rotating air removal rotor produces suction inside the reeling cylinder, wherein the air flow absorbed inside the reeling cylinder travels towards the rotor, and the rotor moves said air flow outside the reeling cylinder or the rotor installed outside the shell sucks the flow of air outside the reeling cylinder.
  • the rotor must be capable of creating a pressure difference between the inside and outside of the reeling cylinder.
  • the holes on the shell of the reeling cylinder have a constant diameter, i.e. extend straight throughout the entire thickness of the shell, wherein the flow speed of air remains constant.
  • Fig. 1 shows a cross-section of the reel-up
  • Fig. 2 shows the reeling cylinder in a longitudinal cross-section
  • Fig. 3 shows another embodiment of the invention when the reeling cylinder is cut longitudinally in two parts.
  • Fig. 1 shows the reel-up that can be a so-called Pope-type reel-up or a reel-up developed therefrom.
  • the web W to be reeled is reeled to form a reel around a reel spool 2 by means of a reeling cylinder 1.
  • the shaft of the reel spool 2 is marked with the reference numeral 2a.
  • the shell of the reeling cylinder 1 shown in Figs 1 and 2 contains holes 5 through which air is sucked inside the shell of the reeling cylinder 1.
  • a rotor is arranged to rotate on bearings, said rotor comprising wings 4.
  • the rotor and the shaft 1 a of the reeling cylinder 1 are concentric.
  • the wings 4 are designed in such a manner that the rotating rotor produces underpressure suction inside the reeling cylinder 1 and blowing of air outside the reeling cylinder via the opening located in the end of the reeling cylinder 1.
  • the number of the wings 4 and the rotating speed of the rotor can vary.
  • the holes 5 are located on a narrow zone extending around the shell of the reeling cylinder 1 , but it is possible that the holes 5 extend around the shell over the entire length of the shell.
  • the air sucked inside the reeling cylinder 1 is discharged via the opening 6 by means of a blowing produced by the wings 4 of the rotor, directed outward from the opening 6.
  • the holes 5 are also located in a narrow zone extending around the shell of the reeling cylinder 1 , but it is possible that the holes extend around the shell across the entire length of the shell.
  • the rotor is located outside the shell of the reeling cylinder, which is advantageous for example for maintenance work.
  • the rotor is arranged on bearings on the shaft 1a of the reeling cylinder 1 , wherein the rotor and the shaft 1a of the reeling cylinder are concentric.
  • the rotor When the rotor is placed outside the shell, the rotor does not, how- ever, have to be concentric with the shaft, but it can be positioned in another manner, as long as it is capable of removing air from inside the shell of the reeling cylinder 1.
  • the wings 4 of the rotor located outside the shell produce suction, wherein air remaining between the reeling cylinder 1 and the paper web is removed through the holes 5 inside the reeling cylinder 1 , and further outside the reeling cylinder via the opening 6.
  • the above description does not restrict the invention, but the invention may vary within the scope of the claims.
  • the openings can also be positioned in other ways than concentrically with the shaft of the reeling cylinder.
  • the main idea in this invention is that by means of a rotating rotor it is possible to convey air away from the space between the reeling cylinder and the web to be reeled.

Abstract

The invention relates to a method in reeling up, in which method a paper web (W) or the like is reeled o a reel spool (2) by means of a reeling cylinder (1), and air remaining between the reeling cylinder (1) and the web (W) is removed via holes (5) in the shell of the reeling cylinder (1) inside the reeling cylinder (1). The air is removed via an opening (6) located in the end of the reeling cylinder (1) in such a manner that air is removed from inside the reeling cylinder (1) by means of a rotor that is arranged to be rotatable. The invention also relates to a reel-up and a reeling cylinder.

Description

A method in reeling up, a reel-up and a reeling cylinder
The present invention relates to a method in reeling up, a reel-up and a reeling cylinder. It is possible to use a reeling cylinder in dif- ferent types of reel-ups, it can be used for example as a reeling cylinder in a so-called Pope-type reel-up and in reeling methods developed from the Pope-type reel-up and equipped with center drives.
The reel-up comprises a reeling cylinder and a reel spool. The shell of the reeling cylinder rotates on bearings on the shaft at peripheral speed corresponding to the speed of the paper web to be reeled. The reel spool around which paper is reeled is loaded against the reeling cylinder. The reel spool can attain its rotating torque from the contact of the paper reel with the reeling cylinder, or it may be equipped with a center drive. The reeling cylinder is connected to a drive, which, in turn, is connected to the drive of the entire machine in such a manner that the speed of the web to be reeled and the peripheral speed of the reeling cylinder can be adjusted on a substantially equal level.
Especially when the paper web is reeled at high speed, an air bag may be formed before the reeling nip, which air bag can move towards the edges of the web and end up in the nip, wherein crepe wrinkles may appear in the paper, and because of said crepe wrinkles, the paper must be led to broke.
One known solution is disclosed in the patent publication US 6,105,897, in which the surface of a reeling cylinder is made of an elastic material with openings thereon. The openings lead to an air collecting space via channels, and air is conveyed to said air collecting space.
It is a problem of the aforementioned grooves on the surface of the reeling cylinder that the paper to be reeled, especially mat coated paper grades are easily marked because of the grooves. As a result of the nip pressure, the groove pattern is copied on the surface of the web, thus impairing the printing result. The nip pressure depends on the contact surface area between the reeling cylinder and the reel iron/spool.
Another alternative to remove air from between the reeling cylinder and the web is to drill holes on the shell of the reeling cylinder, via which holes it is possible to remove air inside the reeling cylinder. Thus, problems are caused by the removal of air from inside the reeling cylinder. In a wide and fast machine in which the web width can be for example 10 meters, and the running speed 30 m/s, the removal of air by means of this method requires great blowing efficiency, wherein both the investment and operating costs are increased when compared to the aforementioned groove arrangement.
The large air volume to be removed requires a large opening through which it is discharged, and thus removal for example through the shaft is restricted because of the dimension limitations of the shaft. Furthermore, a drive is usually connected to the shaft on the other end of the reeling cylinder, wherein air can be removed via the shaft only from one side.
The method according to the invention provides an improvement in view of the state of art. The method according to the invention is characterized in that air is removed from inside the reeling cylinder by means of a rotor that is arranged to be rotatable. The reel-up and reeling cylinder according to the invention are characterized in that the reeling cylinder comprises a rotor that is arranged to be rotatable.
The web tension is adjusted before the reel-up by means of the drive of the reeling cylinder. The invention ensures sufficient hold between the web and the reeling cylinder especially when a lead-in strip that is sufficiently narrower than the width of the web is passed to the reel-up.
In the solution according to the invention the shell of the reeling cylinder contains holes via which air is arranged to flow inside the reeling cylinder, and at least one of the ends of the cylinder is equipped with an air removal ro- tor that efficiently removes air from inside the reeling cylinder. The air removal rotor can rotate with the reeling cylinder or it may rotate separately. The rotor can be used with a separate drive, for example by means of belts, or the necessary force can be taken from the reeling cylinder. The rotor can be located inside the reeling cylinder, or it may be located outside the reeling cylinder.
The rotating air removal rotor produces suction inside the reeling cylinder, wherein the air flow absorbed inside the reeling cylinder travels towards the rotor, and the rotor moves said air flow outside the reeling cylinder or the rotor installed outside the shell sucks the flow of air outside the reeling cylinder. Irrespective of the embodiment, the rotor must be capable of creating a pressure difference between the inside and outside of the reeling cylinder. In view of functionality, it is advantageous that the holes on the shell of the reeling cylinder have a constant diameter, i.e. extend straight throughout the entire thickness of the shell, wherein the flow speed of air remains constant.
In the following, the invention will be described in more detail with reference to the appended drawings, in which
Fig. 1 shows a cross-section of the reel-up,
Fig. 2 shows the reeling cylinder in a longitudinal cross-section, and
Fig. 3 shows another embodiment of the invention when the reeling cylinder is cut longitudinally in two parts.
Fig. 1 shows the reel-up that can be a so-called Pope-type reel-up or a reel-up developed therefrom. The web W to be reeled is reeled to form a reel around a reel spool 2 by means of a reeling cylinder 1. In Fig. 1 the shaft of the reel spool 2 is marked with the reference numeral 2a. The shell of the reeling cylinder 1 shown in Figs 1 and 2 contains holes 5 through which air is sucked inside the shell of the reeling cylinder 1. On the shaft 1a of the reeling cylinder 1 , close to the end of the reeling cylinder, a rotor is arranged to rotate on bearings, said rotor comprising wings 4. The rotor and the shaft 1 a of the reeling cylinder 1 are concentric. The wings 4 are designed in such a manner that the rotating rotor produces underpressure suction inside the reeling cylinder 1 and blowing of air outside the reeling cylinder via the opening located in the end of the reeling cylinder 1. The number of the wings 4 and the rotating speed of the rotor can vary.
In the situation shown in Fig. 2, the holes 5 are located on a narrow zone extending around the shell of the reeling cylinder 1 , but it is possible that the holes 5 extend around the shell over the entire length of the shell. The air sucked inside the reeling cylinder 1 is discharged via the opening 6 by means of a blowing produced by the wings 4 of the rotor, directed outward from the opening 6. There may be more than one rotor according to Fig. 2, for example on both ends of the reeling cylinder 1 inside the shell of the reeling cylinder.
In the situation shown in Fig. 3, the holes 5 are also located in a narrow zone extending around the shell of the reeling cylinder 1 , but it is possible that the holes extend around the shell across the entire length of the shell. In this embodiment the rotor is located outside the shell of the reeling cylinder, which is advantageous for example for maintenance work. In the situation according to Fig. 3, the rotor is arranged on bearings on the shaft 1a of the reeling cylinder 1 , wherein the rotor and the shaft 1a of the reeling cylinder are concentric. When the rotor is placed outside the shell, the rotor does not, how- ever, have to be concentric with the shaft, but it can be positioned in another manner, as long as it is capable of removing air from inside the shell of the reeling cylinder 1. The wings 4 of the rotor located outside the shell produce suction, wherein air remaining between the reeling cylinder 1 and the paper web is removed through the holes 5 inside the reeling cylinder 1 , and further outside the reeling cylinder via the opening 6. The above description does not restrict the invention, but the invention may vary within the scope of the claims. There may be several openings at the end of the reeling cylinder via which air is discharged. The openings can also be positioned in other ways than concentrically with the shaft of the reeling cylinder. The main idea in this invention is that by means of a rotating rotor it is possible to convey air away from the space between the reeling cylinder and the web to be reeled.

Claims

Claims:
1. A method in reeling up, in which method a paper web (W) or the like is reeled on a reel spool (2) by means of a reeling cylinder (1), and air remaining between the reeling cylinder (1) and the web (W) is removed via holes (5) in the shell of the reeling cylinder (1) inside the reeling cylinder (1) from which air is removed via an opening (6) located in the end of the reeling cylinder (1), characterized in that air is removed from inside the reeling cylinder (1) by means of a rotor that is arranged to be rotatable.
2. The method according to claim 1 , characterized in that air is removed from inside the reeling cylinder (1) by means of a rotor that is installed inside the reeling cylinder (1 ), concentrically with the shaft (1a) of the reeling cylinder (1 ).
3. The method according to claim 1 , characterized in that air is removed from inside the reeling cylinder (1) by means of a rotor that is installed outside the shell of the reeling cylinder (1).
4. The method according to any of the preceding claims, characterized in that the rotor comprises wings (4) that rotate around the shaft (1a) of the reeling cylinder (1) and produce underpressure suction inside the reeling cylinder (1).
5. The method according to claim 3, characterized in that wings (4) cause blowing or suction of air outside the reeling cylinder (1) via an opening (6) located in the end of the same.
6. A reel-up of a paper machine or finishing machine for paper, said reel-up comprising a reeling cylinder (1) containing holes (5) in its shell, and a reel spool (2) around which the paper web (W) or the like is arranged to be reeled, characterized in that the reeling cylinder (1) comprises a rotor that is arranged to be rotatable.
7. The reel-up according to claim 5, characterized in that the rotor installed inside the reeling cylinder (1) is concentrical with the shaft (1a) of the reeling cylinder (1).
8. The reel-up according to claim 6, characterized in that the rotor is located outside the shell of the reeling cylinder (1).
9. The reel-up according to any of the preceding claims 6 to 8, characterized in that the rotor comprises wings (4).
10. A reeling cylinder (1) in a reel-up of a paper machine or finishing machine for paper, said reeling cylinder (1) comprising a perforated shell, characterized in that the reeling cylinder (1) comprises a rotor that is arranged to be rotatable.
11. The reeling cylinder according to claim 10, characterized in that the rotor installed inside the reeling cylinder (1) is concentrical with the shaft (1a) of the reeling cylinder (1).
12. The reeling cylinder according to claim 10, characterized in that the rotor is located outside the shell of the reeling cylinder (1).
13. The reeling cylinder according to any of the preceding claims 10 to 12, characterized in that the rotor comprises wings (4).
PCT/FI2003/000408 2002-05-28 2003-05-27 A method in reeling up, a reel-up and a reeling cylinder WO2003099690A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003233825A AU2003233825A1 (en) 2002-05-28 2003-05-27 A method in reeling up, a reel-up and a reeling cylinder

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20020995A FI20020995A (en) 2002-05-28 2002-05-28 Method of winding, reel and roller cylinder
FI20020995 2002-05-28

Publications (1)

Publication Number Publication Date
WO2003099690A1 true WO2003099690A1 (en) 2003-12-04

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FI (1) FI20020995A (en)
WO (1) WO2003099690A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010041234A1 (en) * 2008-10-12 2010-04-15 Zeev Sapir Apparatus and method of winding film
DE102016102567A1 (en) * 2016-02-15 2017-08-17 Ahauser Gummiwalzen Lammers Gmbh & Co. Kg Composite roller with cavity
DE202016009195U1 (en) 2016-02-15 2023-12-04 Ahauser Gummiwalzen Lammers Gmbh & Co. Kg Composite roller with cavity

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3945131A (en) * 1970-05-13 1976-03-23 Eduard Kusters Web drying apparatus
FI78754B (en) * 1987-10-29 1989-05-31 Valmet Paper Machinery Inc ANORDNING FOER AOSTADKOMMANDE AV UNDERTRYCK I EN CYLINDRISK VALSMANTEL PAO EN ROTERANDE VALS.
JPH028139A (en) * 1988-06-27 1990-01-11 Mitsubishi Heavy Ind Ltd Suction roll
DE19647919A1 (en) * 1996-11-20 1998-05-28 Voith Sulzer Papiermasch Gmbh Moving paper or cardboard web guide
EP0945382A2 (en) * 1998-03-24 1999-09-29 Voith Sulzer Papiertechnik Patent GmbH Roll winder drum

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3945131A (en) * 1970-05-13 1976-03-23 Eduard Kusters Web drying apparatus
FI78754B (en) * 1987-10-29 1989-05-31 Valmet Paper Machinery Inc ANORDNING FOER AOSTADKOMMANDE AV UNDERTRYCK I EN CYLINDRISK VALSMANTEL PAO EN ROTERANDE VALS.
JPH028139A (en) * 1988-06-27 1990-01-11 Mitsubishi Heavy Ind Ltd Suction roll
DE19647919A1 (en) * 1996-11-20 1998-05-28 Voith Sulzer Papiermasch Gmbh Moving paper or cardboard web guide
EP0945382A2 (en) * 1998-03-24 1999-09-29 Voith Sulzer Papiertechnik Patent GmbH Roll winder drum

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section Ch Week 199009, Derwent World Patents Index; Class F09, AN 1990-061522, XP002249802 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010041234A1 (en) * 2008-10-12 2010-04-15 Zeev Sapir Apparatus and method of winding film
DE102016102567A1 (en) * 2016-02-15 2017-08-17 Ahauser Gummiwalzen Lammers Gmbh & Co. Kg Composite roller with cavity
DE202016009195U1 (en) 2016-02-15 2023-12-04 Ahauser Gummiwalzen Lammers Gmbh & Co. Kg Composite roller with cavity

Also Published As

Publication number Publication date
FI20020995A (en) 2003-11-29
AU2003233825A1 (en) 2003-12-12
FI20020995A0 (en) 2002-05-28

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