EP2711321B1 - Rouleau de chargement pour un arbre d'enroulement d'une enrouleuse pour une bande fibreuse - Google Patents

Rouleau de chargement pour un arbre d'enroulement d'une enrouleuse pour une bande fibreuse Download PDF

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Publication number
EP2711321B1
EP2711321B1 EP12185776.7A EP12185776A EP2711321B1 EP 2711321 B1 EP2711321 B1 EP 2711321B1 EP 12185776 A EP12185776 A EP 12185776A EP 2711321 B1 EP2711321 B1 EP 2711321B1
Authority
EP
European Patent Office
Prior art keywords
loading
loading roll
reeling
reel
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.)
Not-in-force
Application number
EP12185776.7A
Other languages
German (de)
English (en)
Other versions
EP2711321A1 (fr
Inventor
Jari Tiitta
Sami LUMIJÄRVI
Marko Tiilikainen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Valmet Technologies Oy
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Valmet Technologies Oy
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Publication date
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Priority to EP12185776.7A priority Critical patent/EP2711321B1/fr
Publication of EP2711321A1 publication Critical patent/EP2711321A1/fr
Application granted granted Critical
Publication of EP2711321B1 publication Critical patent/EP2711321B1/fr
Not-in-force legal-status Critical Current
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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
    • B65H19/00—Changing the web roll
    • B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
    • B65H19/2238—The web roll being driven by a winding mechanism of the nip or tangential drive type
    • B65H19/2253—The web roll being driven by a winding mechanism of the nip or tangential drive type and the roll being displaced during the winding operation
    • B65H19/2261—Pope-roller
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2402/00—Constructional details of the handling apparatus
    • B65H2402/50—Machine elements
    • B65H2402/52—Bearings, e.g. magnetic or hydrostatic bearings

Definitions

  • the invention relates to a loading roll a reel-up, in particular to a loading roll for a reeling shaft of a reel-up for a fiber web. Especially the invention relates to a loading roll according to the preamble of claim 1.
  • loading roll is meant a rotating part of the locking and loading means of a reeling shaft of a reel-up for a fiber web.
  • a typical production and treatment line comprises a head box, a wire section and a press section as well as a subsequent drying section and a reel-up.
  • the production and treatment line can further comprise finishing devices, for example a calender and/ or a coater.
  • the production and treatment line also comprises typically at least one slitter-winder for forming customer rolls as well as a roll packaging apparatus.
  • fiber webs such as paper or board webs
  • fiber web manufacturing line which may be hundreds of meters long.
  • Modern paper machines may produce more than 450,000 tons of paper per year.
  • the speed of a paper machine may exceed 2000 m/min and the width of a paper web may be more than 11 meters.
  • manufacturing operates as a continuous process.
  • the finished fiber web being output from the machine is wound with a reel-up around a reeling shaft, i.e. a reel spool, into a machine roll (parent roll), the diameter of which may be more than 5 meters and which may weigh more than 160 tons.
  • the purpose of the winding is to transfer the fiber web from its planar manufacturing form into a form in which it can be handled more easily.
  • the continuous process of the machine is interrupted for the first time, after which the process continues in stages. Every attempt is made to interlink these stages as smoothly as possible so that the work already performed would not be wasted.
  • the machine roll (parent roll) is formed around the reeling shaft operating as the reeling core i.e. the fiber web being wound on one parent roll has a start and an end.
  • the trend in the field is a continuous increase in the size of parent rolls, which causes an on-going development requirement for reel-ups.
  • the task performed by the reel-up as the maintainer of the efficiency of the paper or board machine is very considerable.
  • a reason behind the continuous increase in the size of parent rolls is the desire to obtain fewer starts and ends in the production of the fiber web, which impedes or disturb the production and decrease the efficiency.
  • the reel-up which comprises a reeling cylinder and two pairs of carriages or a pair of carriages and a pair of forks, one carriage for each end of the reeling shaft / parent roll for moving and supporting the reeling shaft and the parent roll to be reeled.
  • the web is reeled around the reeling shaft to a parent roll by means of a reeling nip between the reeling cylinder and the forming parent roll, which reeling takes place in a primary stage in a primary position and in a secondary stage in a secondary position.
  • the nip load is formed between the parent roll and the reeling cylinder and it is provided by loading the reeling shaft by the primary carriages or by the secondary forks against the reeling cylinder.
  • the primary support carriages are supporting the parent roll against the reeling cylinder and downstream of the reeling cylinder mainly the secondary forks are supporting the parent roll against the reeling cylinder.
  • the supporting carriages and forks comprise a fastening/locking mechanism of the reeling shaft so that the reeling shaft stays on the carriages and forks at all reeling stages.
  • different kinds of locking and loading means for example locking and loading clamps for the reeling shafts.
  • the reeling shaft rotates on the guides supported by its rotating bearing housing, which means that the locking and loading means must be provided with rotating parts, i.e. rolls, so the locking and loading clamps are equipped with loading rolls.
  • the loading rolls according to prior art are made of steel or brass based alloys.
  • reeling vibrations may occur for example due to eccentricity of the parent roll or due to irregularities in the fiber web to be wound or due to vibration causing defects in machine parts of the reel-up or due to faulty operation of the reel-up.
  • vibrations are dampened for example by using soft cover of the reeling cylinder which soft cover has been made of rubber or polyurethane such that possible vibrations are dampened.
  • the locking and loading clamps have been provided with a friction piece that dampens the vibrating movement of the parent roll by increasing friction in between the locking and loading clamp and the bearing housing of the reeling shaft. It is also known from prior art to dampen the vibrations of a reel-up by a brake connected to a hydraulic cylinder arm.
  • the force sensor is connected to the end of the arm of the hydraulic cylinder and thus the impulse of the vibrations is dampened and the nip force can be measured.
  • disadvantageous is that the adjustment of the nip force is difficult, since the actuator i.e. the hydraulic cylinder must also influence against the as damper functioning brake.
  • electro mechanic actuators In recent times in reel-ups the use of electro mechanic actuators has increased.
  • the electro mechanical actuators are sensitive to impacts and to vibrations and thus dynamic loading forces need to be taken in special consideration in reel-ups for preventing possible damages of the actuators. It is known from prior art to increase the impact resistance of these actuators by providing them with sliding clutches or with spring set cylinders.
  • an apparatus for winding a web of paper material into a roll comprising a rotatably mounted reel spool onto which the web of paper material is to be wound to form a roll of increasing diameter, a reel drum rotatably mounted adjacent to the reel spool, a carriage supporting one of the reel drum and the reel spool so as to be movable relative to the other and positioning said one of the reel drum and the reel spool adjacent to the other such that a nip is formed there between and an actuator connected to the carriage and operable for moving the carriage to urge the reel drum and the reel spool relatively toward each other so as to cause the reel drum to indent the roll of paper radially inward locally at the nip.
  • an apparatus for forming a continuous winding of a web from a source onto a roll core comprising: a roll core support, the support being movable from a loading position, wherein a roll core is loaded onto the support to a supporting position, wherein the roll core is located on the support during winding of the web onto the roll core, to a discharge position, wherein the roll core is discharged from the roll core support when fully wound.
  • An object of the invention is to create a new type of a loading roll for a reel-up, especially for a reeling shaft of a reel-up for a fiber web.
  • An object of the invention is to eliminate or at least minimize the above explained disadvantages in a reel-up especially relating to vibrations, impacts and lifetime of bearings.
  • the loading roll for a reel-up is mainly characterized by the features of the characterizing part of claim 1.
  • the locking and loading means preferably locking and loading clamps, for the reeling shaft of the reel-up are provided with elastic structure constructed by making the loading roll of the locking and loading means of at least partly of elastic material or by providing in the loading roll elastic material for example an elastic cover or layer.
  • the loading element is provided with elasticity for example for impact situations and for dampening vibrations.
  • the loading roll consist of elastic material or according to another advantageous feature the loading roll comprises a cover or a layer of elastic material.
  • the elastic material is resilient polymeric material.
  • the elastic material is elastomeric material.
  • the elastic material is polyurethane or rubber, or plastics or epoxy.
  • the hardness of the elastic material of loading roll is 50 - 103 Shore A, preferably 70 - 95 Shore A.
  • the thickness of the cover or the layer of the elastic material in the loading roll is 5 - 150 mm, preferably 20 - 50 mm.
  • the elastic material layer for example the polyurethane layer is provided in between of two metallic surfaces by casting or by adhesion by which the surface load when loading the loading roll against the reeling shaft is more evenly divided and thus local overruns of the load do not exceed the limit values.
  • the loading roll is provided with bearings made of spring steel by which the bearings and thus also the loading roll are resistant to impacts and vibrations.
  • the spring steel as bearing material for the loading roll thus provides for longer service life of the loading element and also protects the electro mechanic actuators from impacts and vibrations.
  • the loading roll is a loading roll of locking and loading means of primary reeling devices of the reel-up.
  • the primary reeling devices are for example primary carriages or primary forks.
  • the loading roll is a loading roll of locking and loading means of secondary reeling devices of the reel-up.
  • the secondary reeling devices are for example secondary forks or secondary carriages.
  • a friction damper is located parallel to a cylinder or a spring with low rigidity but in series with a force sensor.
  • the spring damper can also be constructed as a single unit.
  • the vibration movements are strong at a resilient reeling cylinder or reeling shaft and thus this aspect provides a very advantageous location for the damper.
  • the force adjustment is provided by a screw jack with a servo motor or by a corresponding rigid actuator.
  • the nip force can also be calculated based on the moment of the servo motor of the screw jack or measured by a force sensor at the end of the screw jack.
  • Fig. 1 shows an example of a reel-up 10 for continuous reeling up of the fiber web W around a reeling shaft 15 for forming the parent roll 17, the reel-up 10 comprising a reeling cylinder 11, whereby a nip load can be formed between the parent roll 17 and the reeling cylinder 11, the parent roll 17 being arranged so as to be movable during the reeling along an substantially horizontal path, such as reeling rails 20, from the starting point of the reeling to the point of transfer of the completed parent roll, the starting point of the reeling being upstream of the reeling cylinder 11 and the point of transfer downstream of the same, whereby upstream of the reeling cylinder, there are primary reeling devices for example primary carriages 12 for supporting the parent roll 17 against the reeling cylinder 11, and downstream of the reeling cylinder 11, there are secondary reeling devices for example secondary forks 18 for supporting the parent roll 17 against the reeling cylinder 11.
  • primary reeling devices for example primary carriages 12 for supporting the parent roll 17 against the reeling cylinder 11, and downstream of the reel
  • the reel-up 10 is shown in a position, wherein the primary carriers 12 have transferred to fetch the next reeling shaft 15 from its storage position or the place, where the reeling shafts are placed by the crane.
  • the primary carriers 12 are fitted with bearings to be linearly movable in the x-direction onto guides (not shown) and the secondary forks 18 are pivotably articulated on their pivots 29.
  • the reel-up 10 comprises loading rolls 30 in connection with the primary carriages 12 and in connection with the secondary forks 18.
  • the loading rolls 30 are attached to the locking and loading means i.e. locking and loading clamps 13, 14 for the reeling shaft 15.
  • the locking and loading clamps 13, 14 of the primary carriage support the reeling shaft 15 at the bearing houses 16 of the reeling shaft 15 by the loading rolls 30.
  • the loading rolls 30 are also located at the locking and loading means i.e. locking and loading clamps 19 for supporting the parent roll 17 and the reeling shaft 15 at the bearing houses by the loading rolls 30.
  • the loading rolls 30 are attached to the end of locking and loading means 21, 22 for transmitting the force from the locking and loading means to the bearing houses 16 of the reeling shaft 15.
  • the loading rolls 30 are provided with an elastic cover 35 for elasticity for impact situations and for dampening vibrations.
  • the loading rolls 30 can also be constructed of elastic material.
  • the loading roll 30 is supporting and loading the bearing housing 16 of a reeling shaft.
  • the elastic material 33 for example the polyurethane, is provided in between of two metallic surfaces 31, 32 by casting or by adhesion by which the surface load when loading the loading roll 30 against the bearing housing 16 of the reeling shaft is more evenly divided and thus local overruns of the load do not exceed the limit values.
  • the elastic material 34 is located in the middle layer of the loading roll 30 between metallic surfaces 31, 32 by which the bearings and thus also the loading roll are resistant to impacts and vibrations.
  • the maximum resiliency of the elastic material layer 34 of the loading roll 30 is indicated by reference 36 and room for expansion of the elastic material 34 is indicated by reference 37.
  • FIG 5 a schematical example of a support arrangement for a reeling shaft is shown for dampening vibrations in a reel-up.
  • the reeling shaft is schematically indicated by reference sign 41 and further the mass of the reeling shaft 41 is indicated by an arrow and reference sign M.
  • the support structures are indicated by reference sign 42. Underneath the reeling shaft 41 a force sensor 43 for measuring the nip force is located and the force sensor 43 is connected by a cylinder or a spring 44 and by a friction damper 45 to the support structure 42 of the reeling shaft 41.
  • the support structure 42 is supported by a screw jack 46 onto the foundation or corresponding structure 47.
  • the reeling shaft 41 is exposed to vibrations if impulses of vibration causing frequencies exist in the reeling.
  • a friction damper 45 is located parallel to a cylinder or a spring 44 with low rigidity but in series with the force sensor 43.
  • the spring damper can also be constructed as a single unit.
  • the vibration movements are strong at the resilient shaft and thus a very advantageous location for the damper.
  • the nip force can also be calculated based on the moment of the servo motor of the screw jack 46 or measured by a force sensor at the end of the screw jack 46.
  • nip vibrations of a reel-up can be dampened without disturbances in force measurement or force adjustment due to the friction of the damper. Also resonance frequencies can be avoided by adjusting the friction force of the friction damper to alter the natural frequency of the nip.
  • This example has been described referring to a reeling shaft but this example is also well applicable for dampening vibrations of a reeling cylinder.

Landscapes

  • Rolls And Other Rotary Bodies (AREA)
  • Replacement Of Web Rolls (AREA)

Claims (15)

  1. Rouleau de chargement pour un arbre d'enroulement d'une enrouleuse pour une bande fibreuse, lequel rouleau de chargement (30) est prévu pour verrouiller et/ou charger l'arbre d'enroulement (15) d'une enrouleuse (10), caractérisé en ce qu'au moins partiellement, le rouleau de chargement (30) est en matériau élastique.
  2. Rouleau de chargement selon la revendication 1, caractérisé en ce que le rouleau de chargement (30) comprend un couvercle élastique (35) ou une couche élastique (33, 34).
  3. Rouleau de chargement selon la revendication 1, caractérisé en ce que le rouleau de chargement (30) consiste en un matériau élastique.
  4. Rouleau de chargement selon l'une quelconque des revendications 1 - 3, caractérisé en ce que le matériau élastique est du matériau polymère résilient.
  5. Rouleau de chargement selon l'une quelconque des revendications 1 - 3, caractérisé en ce que le matériau élastique est du matériau élastomère.
  6. Rouleau de chargement selon l'une quelconque des revendications 1 - 3, caractérisé en ce que le matériau élastique est du polyuréthane.
  7. Rouleau de chargement selon l'une quelconque des revendications 1 - 6, caractérisé en ce que le rouleau de chargement (30) est un rouleau de chargement (30) de moyens de verrouillage et de chargement (13, 14) de dispositifs de bobinage primaires (12) de l'enrouleuse (10).
  8. Rouleau de chargement selon l'une quelconque des revendications 1 - 6, caractérisé en ce que le rouleau de chargement (30) est un rouleau de chargement (30) de moyens de verrouillage et de chargement (19) de dispositifs de bobinage secondaires (18) de l'enrouleuse (10).
  9. Rouleau de chargement selon les revendications 1 ou 2, caractérisé en ce que la couche élastique (33, 34) du rouleau de chargement (30) est située entre deux surfaces métalliques (31, 32).
  10. Rouleau de chargement selon les revendications 1 ou 2, caractérisé en ce que le rouleau de chargement (30) comprend des paliers de métal à ressort.
  11. Rouleau de chargement selon l'une quelconque des revendications précédentes 1 - 8, caractérisé en ce que le matériau élastique est réalisé par fonte.
  12. Rouleau de chargement selon l'une quelconque des revendications précédentes 1 - 8, caractérisé en ce que le matériau élastique est fixé par un adhésif au rouleau de chargement (30).
  13. Rouleau de chargement selon l'une quelconque des revendications précédentes, caractérisé en ce que le rouleau de chargement (30) supporte l'arbre d'enroulement (15) par le corps de palier (16) de l'arbre d'enroulement (15).
  14. Rouleau de chargement selon l'une quelconque des revendications précédentes, caractérisé en ce que l'épaisseur de la couche de matériau élastique est de 5 - 150 mm, de préférence de 20 - 50 mm.
  15. Rouleau de chargement selon l'une quelconque des revendications précédentes, caractérisé en ce que la dureté de la couche de matériau élastique est de 50 - 103 Shore A, de préférence de 70 - 95 Shore A.
EP12185776.7A 2012-09-25 2012-09-25 Rouleau de chargement pour un arbre d'enroulement d'une enrouleuse pour une bande fibreuse Not-in-force EP2711321B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP12185776.7A EP2711321B1 (fr) 2012-09-25 2012-09-25 Rouleau de chargement pour un arbre d'enroulement d'une enrouleuse pour une bande fibreuse

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP12185776.7A EP2711321B1 (fr) 2012-09-25 2012-09-25 Rouleau de chargement pour un arbre d'enroulement d'une enrouleuse pour une bande fibreuse

Publications (2)

Publication Number Publication Date
EP2711321A1 EP2711321A1 (fr) 2014-03-26
EP2711321B1 true EP2711321B1 (fr) 2017-06-21

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Application Number Title Priority Date Filing Date
EP12185776.7A Not-in-force EP2711321B1 (fr) 2012-09-25 2012-09-25 Rouleau de chargement pour un arbre d'enroulement d'une enrouleuse pour une bande fibreuse

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9685189B1 (en) 2016-04-06 2017-06-20 International Business Machines Corporation Reduced reel motor disturbances in a tape drive system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3103321A (en) * 1961-10-27 1963-09-10 Valley Iron Works Corp Paper machine reel
US3258217A (en) * 1964-03-27 1966-06-28 Frank W Egan & Company Single drum web winding machine
DE8808823U1 (de) * 1988-07-08 1988-08-25 Sulzer-Escher Wyss Gmbh, 88212 Ravensburg Vorrichtung für das kontinuierliche Aufwickeln einer Bahn aus blattförmigem Material, insbesondere einer Papierbahn
US6036137A (en) * 1998-12-17 2000-03-14 Valmet-Karlstad Ab Apparatus and method for winding paper

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

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EP2711321A1 (fr) 2014-03-26

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