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
  • B65H18/14—Mechanisms in which power is applied to web roll, e.g. to effect continuous advancement of web
  • B65H18/16—Mechanisms in which power is applied to web roll, e.g. to effect continuous advancement of web by friction 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
  • B65H18/00—Winding webs
  • B65H18/08—Web-winding mechanisms
  • B65H18/14—Mechanisms in which power is applied to web roll, e.g. to effect continuous advancement of web
  • B65H18/20—Mechanisms in which power is applied to web roll, e.g. to effect continuous advancement of web the web roll being supported on two parallel rollers at least one of which is driven
• • 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
  • B65H2301/00—Handling processes for sheets or webs
  • B65H2301/40—Type of handling process
  • B65H2301/41—Winding, unwinding
  • B65H2301/413—Supporting web roll
  • B65H2301/4134—Both ends type arrangement
• • 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
  • B65H2301/414—Winding
  • B65H2301/4148—Winding slitting
  • B65H2301/41486—Winding slitting winding on two or more winding shafts simultaneously
  • B65H2301/414866—Winding slitting winding on two or more winding shafts simultaneously on bed rollers
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H2403/00—Power transmission; Driving means
  • B65H2403/60—Damping means, shock absorbers
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H2404/00—Parts for transporting or guiding the handled material
  • B65H2404/40—Shafts, cylinders, drums, spindles
  • B65H2404/43—Rider roll construction
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H2601/00—Problem to be solved or advantage achieved
  • B65H2601/50—Diminishing, minimizing or reducing
  • B65H2601/52—Diminishing, minimizing or reducing entities relating to handling machine
  • B65H2601/524—Vibration

Definitions

• the invention relates to an arrangement according to the preamble of claim 1 for dampening the vibration of an apparatus assembly arranged to be controllably movable on a fibrous web machine, wherein said apparatus assembly of a fibrous web machine is movably arranged in relation to the fiber web machine by its support structure, the apparatus assembly and/or its support structure being provided with arrangement for dampening vibration.
• the invention relates to a method according to the preamble of claim 1 3 for dampening the vibration on an apparatus assembly arranged to be controllably movable on a fiber web machine.
• a material web machine the material web coming from e.g. a paper machine is wound into large machine rolls, possibly even over 10 m wide and over 4 m in diameter, at the reel-up.
• the web of material is cut into narrower partial webs and wound into smaller so-called customer rolls with a slitter-winder.
• a slitter-winder known from prior art the machine roll is unwound and the wide web is slit with the slitting part of the slitter-winder into a number of narrower partial webs that are rewound with a winding part over winding spools, such as cores, to form customer rolls.
• the slitter-winder is stopped and the partial web rolls are removed from the machine, i.e. the set change is done. Subsequent to this the process is continued as winding of a new set of rolls.
• the partial web winder can be a king roll type winder in which the partial web rolls are wound carried by king rolls, typically supported by a rider roll.
• FI101283 discloses a method in which the running speed of the winder is controlled based on the rotation frequency of the roll so that as the rotation frequency of the roll approaches the vicinity of the vibration range, i.e. the roll rotation frequency range where there is a strong vibration, the running speed is quickly lowered so that the rotation speed of the roll decreases to below the lower frequency of the vibration range and subsequent to this the running speed is increased so that the rotation frequency of the roll remains constant until the original running speed of the winder is reached. Due to the change of the running speed this has an effect on the total capacity of the winder.
• the rider roll is moved based on the diameter of the rolls, whereby at least the rider roll arrangement is movably supported by the body structure of the winding part.
• the consecutive longitudinal cores are locked in their places as a line of cores by means of a core locking device arranged at both ends.
• the support means contacting the roll (or rolls) to be wound are exposed to the dynamic load caused by the rotating roll.
• dynamic loads causing vibration especially in the rider roll and supporting rider roll beam of the king roll winder, excited by the partial web rolls to be wound.
• the design aim of the rider roll of a slitter-winder is a stable construction able to withstand dynamic load.
• a generally used practical solution is one in which rider roll segments are suspended form a relatively rigid rider roll beam.
• the rider roll beam is moved by means of hydraulic cylinders along guides attached to the body. Both the guides and the cylinders are located near the ends of the beam.
• US 4165843 discloses a king roll winding apparatus wherein the rider roll is suspended by chains and the opposite ends of the rider roll beam are provided with two dampers realized as compressed air-fed cylinder-piston apparatuses that press against the body by means of friction surfaces arranged at the ends of the piston rods.
• the position of the rider roll beam and the rider roll is very weakly controlled and e.g. the possibilities to adjust the nip force of the rider roll are in practice nearly non-existent.
• Fl 20055039 discloses reducing the vibration of the rider roll beam by supporting the beam to the body construction at the portion between the ends in addition to supporting just the ends, whereby the rigidity and vibration dampening of the rider roll beam increases.
• the fibrous web machine is considered to consist of a number of machine components, whereby apparatus assembly means one functional partial unit of a machine component, i.e. a machine component can be considered to consist of a number of apparatus assemblies.
• the aims of the invention are ach ieved by means of an arrangement for dampening the vibration of a controllably movably arranged apparatus assembly of a fibrous web machine, wherein said apparatus assembly of a fibrous web machine is arranged movably by its support structure in relation to the to the body structure of the fibrous web machine, the apparatus arrangement and/or its support structure be in g provided with a vibration d a mpen i ng arra ngement.
• the vibration dampening arrangement comprises at least two separate connections having dedicated vibration dampening means from the apparatus assembly or its support structure to the body structure, the connections comprising means for selectably allowing, limiting or preventing a change of the working length of the vibration dampening means.
• the vibration dampening arrangement provides a very effective action, especially when the movement to be dampened of the apparatus arrangement is long.
• connection to the body structure
• said at least two vibration dampening means being arranged movably controlled by the connection, said connection comprising means for selectably allowing, limiting or preventing movement of the connection.
• the vibration dampening means comprises a viscose damper and a spring connected in parallel.
• the means for selectably allowing, limiting or preventing the movement of the connection comprise a brake apparatus.
• the apparatus assembly of the fibrous web machine, the vibration of which is effected on by the arrangement according to the invention is a support member of the partial web winder of a slitter-winder of a fibrous web, such as a rider roll.
• the partial web winder comprises at least one support member arranged to support the plurality of rolls, the support member being movably arranged by its support structure in relation to the body structure of the partial web winder and comprising a positioning device connected to operate between the support member and the body structure of the winder part, the support member and/or its s u pport structu re be i ng p rovided with a vi bration dampe n i ng arrangement.
• both dampening means comprising a connection to the body structure, said at least two vibration dampening means being arranged movable controlled thereby, said connection comprising means for selectably allowing, limiting or preventing movement of the connection.
• the partial web winder is a king roll winder.
• the apparatus assembly of the fibrous web machine is the core locking device of the partial web winder of the slitter-winder of the fibrous web.
• the partial web finder comprises at least one core locking device arranged to support the plurality of rolls by the ends thereof, the core locking device being arranged by its support structure movably in relation to the body structure of the partial web winder and comprising a positioning device connected to act between the core locking device and the body structure, the core locking device and/or its support structure being provided with a vibration dampening arrangement according to the invention.
• the apparatus assembly of the fibrous web machine is the reeling carrier of a continuously operating reel-up for fibrous web.
• the aims of the invention are also achieved by means of a method for dampening the vibration with an controllably movably arranged apparatus assembly of a fibrous web machine, wherein during running of the fibrous web machine the position of the apparatus assembly is controllably moved by means of a positioning device and wherein the vibration of the apparatus assembly is dampened by means of a vibration dampening arrangement arranged in connection therewith.
• the vibration dampening arrangement comprises at least two separate connections from the apparatus assembly or its support structure to the body construction, the connections being controlled so that the change of the operation length and movement of the connections is selectably allowed, restricted or prevented.
• the invention relates to of dampening vibration in a partial web winder for a fibrous web, wherein during the winding the formed plurality of partial webs is supported by its surface by means of at least one support means, and wherein the force exerted by the support member to the plurality of partial webs is adjusted by means of a positioning means arranged between the support member and body structure of the winding part, the support member and/or its support structure being provided with a vibration dampening arrangement by means of which the vibration of the partial web winder is dampened and the vibration dampening arrangement comprises at least two separate connections to the body structure, the connections being controlled so that the movement of the connections is selectably allowed, limited or prevented.
• the vibration dampening arrangement comprises at least two separate vibration dampening members, whereby during movement of the apparatus assembly only one of said two separate vibration dampening members is immovably connected at a time to the guide included in the vibration dampening arrangement.
• a advantageously immovably connected vibration dampening means i.e. being in working state, dampens vibration while its working length decreases as the apparatus assembly moves and simultaneously the connection of the second vibration dampening means is in operation allowing its movement, i.e. being in resting state.
• the vibration dampening means in the resting state is in its essentially full working length or in at least sufficient length, over 50 %, when its state is changed to working state.
• vibration in a partial web winder of a fibrous web is dampened, wherein during the winding operation the plurality of partial webs to be formed is supported by their ends by means of two core locking devices and wherein the core locking device and/or its support structure is provided with a vibration dampening arrangement by means of which the vibration of the partial web winder is dampened.
• vibration is dampened in a continuously running fibrous web reel-up winder, wherein the machine roll to be wound is supported by means of a support member arranged movably in relation to the body structure of the winder and that comprises a positioning device connected to operate between the support member and the body structure of the winding part, the support member and/or its support structure being provided with a vibration dampening means according to the invention.
• figure 1 illustrates an embodiment of the invention and carrying out the method of the embodiment in connection with a partial web winder of the king roll type
• figure 2 illustrates the principle diagram of a vibration dampening arrangement according to an embodiment
• figure 3 illustrates an embodiment of the invention and carrying out the method of the embodiment in connection with a continuously running reel-up of fibrous web
• figure 4 illustrates another embodiment in connection with a partial web winder of the king roll type.
• Figure 1 illustrates a partial web winder 10 of a slitter-winder for fibrous web, here a so-called king roll winder.
• the king roll winder comprises king rolls 12.1 and 12.2, of which the so-called rear roll 12.1 guides the partial webs w' to proceed for winding into partial web rolls 14 carried by king rolls 14.
• the king rolls are rotatably supported to the body structure or foundation 18 of the partial web winder by means of bearings 16.1 , 16.2
• the partial web winder 10 comprises as one apparatus assembly thereof also a rider roll 20 acting as a support member of the plurality of partial rolls, the rider roll being supported by a support structure arranged for it, a rider roll beam 22.
• the rider roll beam 22 is arranged to be guided by guide 26 and it also comprises positioning apparatus 28 by means of which the position of the rider roll can be changed during winding and simultaneously the force exerted by the rider roll to the plurality of partial webs can be changed .
• a hydraulic cylinder for example, can be used as the positioning apparatus.
• the positioning apparatuses form a connection between the support member and the body structure or foundation.
• the rider roll 20 and thus also the rider roll beam 22 are arranged movably in relation to the body structure 18 of the partial web winder 10.
• the winder part is provided with at least one guide 26 supported by the body structure 18 in both ends/sides of the partial web winder 10. It is to be noted that figure 1 only illustrates one end/side of the partial web winder 10.
• the rider roll 20 and especially also the rider roll beam 22 is provided with a vibration dampening arrangement 50 for dampening the vibration of the rider roll and the rider roll beam during running.
• the vibration dampening arrangement comprises at least two separate connections 52 having dedicated vibration dampening means 56, the connections extending from the rider roll support structure 22 to the body structure 18, the connections comprising means 54 for selectably allowing, limiting or preventing the movement of the connections.
• at least two, although preferably only two, separate vibration dampening means 56 are provided between the rider roll support structure 22 and the body structure 18.
• both vibration dampening means 56 comprise a connection to the body structure.
• the vibration dampening means 56 are movably connected through connection 52 to the body structure via guide19.
• the vibration dampening means is controlled to take place in the direction or way determined by the guide by means of the connection.
• Each connection comprises independently controllable means 54 for selectably allowing, limiting or preventing movement of the connection.
• the construction of the vibration dampening means is such as to allow the working length L in the direction of the apparatus assembly 20 to change as it acts as a vibration dampening means without its properties essentially changing, i.e. the vibration dampening means is a variable working length dampening member.
• the plurality of partial webs to be formed during winding is supported by its surface by means of at least one support member 20, advantageously a rider roll. Simultaneously the force exerted by the support member to the plurality of partial web rolls is adjusted by means of an actuator arranged between the support member and the body structure 18 of the winder part.
• the connections 52 are further controlled by means of members 50 so that the movement of the connections is selectably allowed, limited or prevented alternately.
• the connection of the vibration dampening means 56 in resting state is changed so as to be immovable in relation to the guide 19 and the connection of the vibration dampening means 56 previously in working state is released to resting state, whereby its working length returns to full or sufficient for use in working state.
• the construction of the vibration dampening means 56 can be such as to allow the working length L in the direction of the movement of the apparatus assembly 20 to change also based on rotational movement (spiral spring, torsion bar).
• connection 52 corresponds with the length of the stroke of the vibration dampening means when the vibration dampening means 56 is in its maximum length
• the connections can advantageously be arranged on a common guide 19.
• connection 52 comprises a guide carrier movably arranged onto the guide 19.
• the means 54 for selectably allowing , limiting or preventing the movement of the connection advantageously comprise a brake apparatus arranged in the guide carrier.
• the vibration dampening arrangement 50 thus comprises a vibration dampening means 56 attached by one end to the rider roll beam and by its other end to the guide carrier.
• FIG. 2 illustrates a principle diagram of the vibration dampening arrangement 50. It shows that the vibration dampening means 56 comprises a viscose dampener 56.2. The vibration dampener means 56 further comprises a spring 56.1. Advantageously the viscose dampener and the spring are connected in parallel.
• FIG. 3 illustrates a continuously operating reel-up 30 for a fibrous web.
• the reel-up winder comprises a reeling drum 32 via which the web w is guided to the machine roll 34 to be wound.
• the machine roll is wound onto a winding shaft 36 supported by a support member 20, such as a reel-up carrier.
• the reel-up carrier is an apparatus assembly of the reel-up.
• the reel-up carrier 20 is movably arranged by means of the positioning device 28 to the body structure 18 between the initial reeling station 38.1 and the final reeling station 38.2.
• the reel-up carrier, i.e. support member 20 is provided with a vibration dampening arrangement 50 the operation and structure of which is described above in connection with figures 1 and 2.
• the reel-up can in other details be known as such and operate as such.
• Figure 4 illustrates a partial web winder 10 of a slitter-winder for a fibrous web similar to the one in Figure 1 , with the addition that figure 4 shows a core locking device 60 arranged to support the plurality of the rolls at the ends thereof, the locking device being arranged movably in relation to the body structure 18 of the partial web winder.
• the core locking device is an apparatus assembly of the partial web winder.
• the core locking device 60 and/or its support structure 60' are provided with a vibration dampening means 50 the operation and structure of which are described above in connection with figure 1 and 2.

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• Winding Of Webs (AREA)
• Preliminary Treatment Of Fibers (AREA)

Applications Claiming Priority (2)

Publications (2)

Family

ID=43629799

Family Applications (1)

Country Status (3)

Families Citing this family (2)

Family Cites Families (8)

• 2011
  • 2011-02-10 FI FI20115127A patent/FI20115127L/fi not_active IP Right Cessation
• 2012
  • 2012-02-09 WO PCT/FI2012/050124 patent/WO2012107646A1/fr not_active Ceased
  • 2012-02-09 EP EP12714029.1A patent/EP2673227B1/fr not_active Not-in-force

Non-Patent Citations (1)

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