CN101457497A - Device for forming an extended nip - Google Patents

Device for forming an extended nip Download PDF

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Publication number
CN101457497A
CN101457497A CNA2008101846515A CN200810184651A CN101457497A CN 101457497 A CN101457497 A CN 101457497A CN A2008101846515 A CNA2008101846515 A CN A2008101846515A CN 200810184651 A CN200810184651 A CN 200810184651A CN 101457497 A CN101457497 A CN 101457497A
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CN
China
Prior art keywords
collet
lining
roller
pressure
support belt
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.)
Pending
Application number
CNA2008101846515A
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Chinese (zh)
Inventor
戴维·兰格
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.)
Andritz Kuesters GmbH
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Andritz Kuesters GmbH
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Filing date
Publication date
Application filed by Andritz Kuesters GmbH filed Critical Andritz Kuesters GmbH
Publication of CN101457497A publication Critical patent/CN101457497A/en
Pending legal-status Critical Current

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    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F3/00—Press section of machines for making continuous webs of paper
    • D21F3/02—Wet presses
    • D21F3/0209—Wet presses with extended press nip
    • D21F3/0218—Shoe presses

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  • Paper (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

The invention discloses a device for forming extended roll gap between a rotary mating roll and a shoe roll to treat material width. The shoe roll comprises a stationary carrier and a flexible roll cover, which rotates around the carrier. The roll cover is supported on the extended roll gap on a pressure shoe set on the carrier with an effective shoe block on horizontal direction, wherein the effective shoe block is determined by a bush which is set on the pressure shoe and sets the pressure mode curve in the extended roll gap.

Description

Be used to form the device of the roll gap of elongation
Technical field
The present invention relates to a kind of roll gap (extended nip) of elongation that is used to form to handle the device of material roll (material web).
Background technology
This device is used for material roll (the particularly paper or the sheet material width of cloth) dehydration or calendering.Pending material roll can have different material roll width.For making these different material roll width pass the device of the roll gap that is used to form elongation, the width that transverse machine (CD) goes up the roll gap of elongation must be adapted to treat the width of the material roll handled respectively.From EP 1369526 B1, know, in this respect,, make the length of pressure collet (pressure shoe) variable on transverse machine for the calendering material roll.Thereby the width of pressure collet is set for like this: promptly roller shell (roll shell) only is compressed against on the collaborative roller (mating roll) in the material roll zone.Yet the change of the width of transverse machine upward pressure collet requires the pressure collet is carried out machinery refitment work.This solution also has disadvantage, because the pressure collet is necessary for the multi-part structure for this purpose, causes easy break-down and has increased maintenance cost.
Summary of the invention
So the purpose of this invention is to provide a kind of device that is used to form the roll gap of elongation, this device allows different materials fabric width degree to pass the device of the roll gap that is used to form elongation.
Device of the present invention is used to form the roll gap that extends to handle material roll between rotary collaborative roller and collet roller, described collet roller has hold-down support and around the rotatable flexible roller shell of described bearing, described roller shell is supported in the roll gap of elongation being arranged on the pressure collet that has effective collet piece on the described bearing and on transverse machine, and described effective collet piece is determined by the lining that is arranged on the described pressure collet and set the pressure pattern curve in the roll gap of described elongation.Purpose of the present invention obtains by above-mentioned feature.
The invention provides a kind of device that is used to form the roll gap of elongation, determine effective collet piece (effective shoe width) on the transverse machine, and therefore set the pressure pattern curve in the roll gap of elongation by the lining on the supporting surface of pressure collet.
Therefore, the width of the effective collet piece on the transverse machine can be regulated according to the width of pending material roll (the especially paper or the sheet material width of cloth) with changing.Simultaneously, the length of the effective collet piece of machine on vertically and effectively the shape of collet piece can be regulated with changing.According to paper or sheet material kind, in the roll gap of elongation, can generate the optional pressure modeling curve.
Lining preferably is made of compression-resistant material, and this material is flexible also can flexibly being arranged on the supporting surface of pressure collet.As the material that is used for lining, plastic material preferably, in addition this plastic material preferably optical fiber strengthen.The thickness of lining can be 1 in the scope of 20mm.
In addition preferably, lining is by forming with respect to the adjustable support belt of pressure collet.Therefore, lining can be arranged to removable with respect to the pressure collet.Preferably, support belt can be forward on vertically and/or regulate backward or move at machine, and have along its length of run and to be arranged as length, width and/or a variform part that is connected on after another, and described part is determined effective collet piece.
Can use the device of the roll gap that is used to form elongation to be paper or the dehydration of the timber width of cloth, or be used for the calandered paper or the timber width of cloth as calender as forcing press.
More embodiment of the present invention can derive from following description and claim.
Description of drawings
Exemplary embodiment is below with reference to the accompanying drawings explained the present invention in detail.
A section of the device of the schematically illustrated roll gap that is used to form elongation according to first exemplary embodiment of Fig. 1;
The side view of the device of the schematically illustrated roll gap that is used to form elongation according to Fig. 1 of Fig. 2;
The vertical view of the schematically illustrated pressure collet that is furnished with lining according to Fig. 1 of Fig. 3;
The vertical view of the schematically illustrated pressure collet that is furnished with lining according to second exemplary embodiment of Fig. 4;
The vertical view of the schematically illustrated pressure collet that is furnished with lining according to the 3rd exemplary embodiment of Fig. 5 a;
The side view of the schematically illustrated Fig. 5 a of Fig. 5 b;
A section of the device of the schematically illustrated roll gap that is used to form elongation according to the 4th exemplary embodiment of Fig. 6;
A section of the device of the schematically illustrated roll gap that is used to form elongation according to the 5th exemplary embodiment of Fig. 7;
The specific embodiment
Fig. 1 illustrates a kind of device that is used to form the roll gap of elongation between rotary collaborative roller 1 and collet roller 2 to Fig. 3, and described two rollers interact in the roll gap 3 of elongation, are used to handle material roll 4.Material roll 4 is preferably the paper or the sheet material width of cloth of optional kind.Collet roller 2 has hold-down support 5 and can be around the flexible roller shell 6 of bearing 5 rotations.Roller shell 6 (preferably being made of rubber or plastics) is a tubular structure, and is being secured near its end face on the edge plate 10,11 that rotatably is fixed on the bearing 5, forms closed collet roller 2 by known way, sees Fig. 2.Preferably, compressed air is fed in the space 7 between bearing 5 and the roller shell 6, so that provide cylindrical shape for collet roller 2.Perhaps, collet roller 2 can be arranged to open collet roller.
Bearing 5 is provided with pressure collet 8.Roller shell 6 is supported in the roll gap 3 of elongation being arranged on the bearing 5 and having on transverse machine (CD) on the pressure collet 8 of effective collet piece 9, sees Fig. 3.Pressure collet 8 supported bars are supported on the bearing 5, and this support bar is made of a plurality of axially isolated hydraulic pressure support components 12 that face with each other.In order to influence the vertically pressure maximum on (MD) of machine, but pressure collet 8 can be with respect to bearing 5 deflections and/or removable.Lubricant can be gone up by 13 sprayings of fuel feeding device in the inboard of roller shell 6.
Effective collet piece 9 on the transverse machine (CD) is determined by the lining 14 that is arranged in the pressure pattern curve in the roll gap 3 of also setting elongation on the pressure collet 8.Therefore lining 14 is arranged on the bearing-surface 15 of pressure collet 8, the upper end of overburden pressure collet 8 on the roll gap 3 that limits elongation that part of.Therefore lining 14 can be determined roll gap, and has the roll gap 3 of going up the elongation of variable-width in transverse machine (CD) by the lining 14 authorized pressure collets 8 of going up variable-width in transverse machine (CD).
Lining 14 has the width of the width that is less than or equal to pressure collet 8 on transverse machine (CD).Here lining 14 forms fluid dynamic force and/or hydrostatic surface, and this surface is supported in the roll gap 3 of elongation towards roller shell 6 and at this surface top roll shell 6.So the effective collet piece 9 on the transverse machine (CD) is preferably corresponding to the width of lining 14.Form lubricated roll gap between lining 14 and roller shell 6, lubricating oil can be supplied to this roll gap by fuel feeding device 13.
The thickness of lining 14 separates roller shell 6 from pressure collet 8.So the roller shell 6 in roll gap 3 outsides of elongation is directed departing from collaborative roller 1.Lining 14 also is made of compression-resistant material in addition, and preferably this compression-resistant material flexibly is arranged on the supporting surface 15 of pressure collet 8.Therefore, lining 14 is preferably flexible, and makes the surface profile of the pressure collet 8 that self coincide.The recessed supporting surface 15 of lining 14 reproducibles, and can on the pressure collet, present optional spill corresponding to the diameter of collaborative roller 1.
Preferably lining 14 is made of plastic material, and has the thickness in 1 to the 20mm scope.Lining 14 makes roller shell 6 raise with respect to the supporting surface 15 of pressure collet 8, makes that stating roller shell 6 in lining 14 places of contiguous roller shell 6 is conical on transverse machine (CD), therefore be directed departing from collaborative roller 1.Thereby lining 14 makes roller shell 6 along effectively collet piece 9 forfeiture on the direction of collaborative roller 1 is round-shaped, so roller shell 6 tilts to leave at the edge side of lining 14.
Preferably, lining 14 is configured to support belt 16, and this support belt 16 is can regulate with respect to pressure collet 8 at width on the transverse machine (CD) and the optional mode of length on machine vertical (MD).
Preferably, support belt 16 can be regulated with respect to pressure collet 8 in the mode that goes up different in width in transverse machine (CD).As shown in Figures 2 and 3, support belt 16 has along the selectable length of support belt 16 and for example is the edge 17 that stretches conically, and this support belt 16 can be wound onto respectively on the winding roller 18,19 at its opposed end.Because support belt 16 transverse translations between winding roller 18,19 can be chosen at the lining 14 that transverse machine (CD) has preset width from support belt 16, this lining 14 forms effective collet piece 9 on pressure collet 8 in the optional time cycle then.By between winding roller 18,19, twining or launching support belt 16,, can select a plurality of band portion except that lining 14 as correct effective collet piece 9 promptly according to the displacement or the position of rotation of support belt 16.Yet at the device run duration, support belt 16 is preferably fixing.Support belt 16 is that machine vertically can move forward and/or backward on (MD) at the traffic direction of material roll 4.
Second exemplary embodiment according to this device, as shown in Figure 4, in order to form the roll gap of elongation, the edge 17 of support belt 16 can be a stepped configuration, reduces or increase the width of the support belt 16 on the transverse machine (CD) when being moved between winding roller 18,19 with convenient support belt 16 gradually.
As be used to form shown in the 3rd exemplary embodiment of device of roll gap of elongation, see Fig. 5 a and 5b, support belt 16 vertically has different-thickness district x1, x2, x3 and/or caliper zones profile on (MD) at machine.In addition, in this example, the width of lining 14 on machine is vertical preferably is chosen as the width less than pressure collet 8.Shown in caliper zones x1 and x3 vertically can have the width of the width that is less than or equal to pressure collet 8 on (MD) at machine.In addition, caliper zones x1, x2, x3 can have different-thickness D.Support belt 16 can be designed to and can change with different-thickness D.
According to an exemplary embodiment (not shown), support belt 16 can form interior endless belt, should in endless belt be configured to diameter less than roller shell 6 and only move with the circumference step, according to support belt 16 wait choose that part of and this part is determined effective collet pieces 9 as lining 14.
Can use the device of the roll gap 3 that is used to form elongation, come to be paper or the dehydration of the sheet material width of cloth, come calandered paper or the sheet material width of cloth or material roll is carried out other processing as calender as forcing press.Under the situation of small machine width, collaborative roller 1 is preferably conventional tubular roller (tube roll).Under the situation of big machine width, collaborative roller 1 is preferably the flexible adjustment roller with support component 20.In the calendering operation, collaborative roller 1 preferably is driven and can be heated to the temperature more than 100 ℃.For the collet calender, the surface temperature of collaborative roller 1 is preferably in 150 to 300 ℃ of scopes according to the character of the time of staying and the paper or the sheet material width of cloth.Nip pressure reaches 40MPa, for the sheet material kind such as Zhe mould assembling plate and various wadding, that promptly applied or uncoated mistake, nip pressure is preferably below 10MPa, and under the situation of figure paper, for example SC-A paper, LWC, MWC, coating simile paper (Wood-free-coatedpapers), nip pressure reaches 40MPa.Preferably, also also with due regard to arrive 10g/m about 1 in the mode that temperature and/or moist gradient are set 2The absorbent time of coating weight paper and sheet material is to implement the calendering operation in known 0.1 to 2 second.
Fig. 6 illustrates the 4th exemplary embodiment of the device of the roll gap 3 that is used to form elongation, and this device is as forcing press.In this example, preferably with one or more felt 21 guiding material 4 roll gap 3 by elongation.Here, support belt 16 is configured to thickness in vertically (MD) upward continuously or intermittently increase of machine.This support belt also can be used for the collet calender.In addition, more than description correspondingly is applicable to here.
Fig. 7 illustrates another exemplary embodiment, and wherein a plurality of support belts 16 of stacked arrangement form lining 14 with the layering supporting construction on pressure collet 8 up and down.For a plurality of support belts 16, a plurality of winding rollers can be set: 18,19; 28,29; 38,39.
To all the foregoing descriptions, same correct is that support belt 16 can be by guider 22,23 guiding at the inlet and/or the outlet side of pressure collet 8.

Claims (16)

1. the roll gap (3) that is used to form elongation between rotary collaborative roller (1) and collet roller (2) is to handle the device of material roll (4), described collet roller (2) has hold-down support (5) and around the rotatable flexible roller shell of described bearing (5) (6), described roller shell is gone up and is had on transverse machine (CD) on the pressure collet (8) of effective collet piece (9) and be supported in the roll gap (3) of elongation being arranged at described bearing (5), it is characterized in that described effective collet piece (9) is determined by the lining (14) of the pressure pattern curve in the roll gap (3) that is arranged in described pressure collet (8) and goes up and set described elongation.
2. device as claimed in claim 1 is characterized in that, described lining (14) has the width of the width that is less than or equal to described pressure collet 8 on described transverse machine (CD).
3. device as claimed in claim 1 or 2 is characterized in that, described lining (14) is made of compression-resistant material.
4. as each described device in the claim 1 to 3, it is characterized in that described lining (14) flexibly is arranged on the described pressure collet (8).
5. device according to any one of claims 1 to 4 is characterized in that, described lining (14) go up to form the recessed pressure face that has optionally corresponding to the profile of described collaborative roller (1) at described pressure collet (8).
6. device according to any one of claims 1 to 4 is characterized in that, forms lubricated roll gap between described lining (14) and described roller shell (6), and described lubricated roll gap can be supplied into lubricating oil.
7. as each described device in the claim 1 to 5, it is characterized in that described lining (14) is made of plastic material, and have 1 to the interior thickness of 20mm scope.
8. as each described device in the claim 1 to 7, it is characterized in that, described lining (14) makes described roller shell (6) raise with respect to the supporting surface (15) of described pressure collet (8), makes described roller shell (6) locate to be conically at the upward contiguous lining of described transverse machine (CD) (14) and tilts to leave.
9. as each described device in the claim 1 to 8, it is characterized in that described lining (14) makes described roller shell (6) lose round-shaped along described effective collet piece (9) on the direction of described collaborative roller (1).
10. as each described device in the claim 1 to 9, it is characterized in that, described lining (14) is formed by support belt (16), and described support belt (16) is can regulate with respect to described pressure collet (8) at width on the described transverse machine (CD) and the optional mode of length on described machine vertical (MD).
11. device as claimed in claim 10 is characterized in that, described support belt (16) can be regulated with respect to described pressure collet (8) in the mode that goes up different in width in described transverse machine (CD).
12., it is characterized in that described support belt (16) can be regulated in the mode that goes up different-thickness district and/or caliper zones profile at described machine vertical (MD) as claim 9 or 10 described devices.
13., it is characterized in that described support belt (16) is removable at the traffic direction of described material roll (4) as each described device in the claim 10 to 12.
14., it is characterized in that described roller shell (6) has the end that can be fixed on the edge plate (10,11) as each described device in the claim 1 to 13, described edge plate (10,11) is rotatably mounted on the described bearing (5).
15., it is characterized in that described lining (14) is respectively an optional part of support belt (16) as each described device in the claim 1 to 14, and described for this purpose support belt (16) can pass through winding roller (18,19) and launches and twine.
16., it is characterized in that described lining (14) is respectively an optional part of layering supporting construction as each described device in the claim 1 to 15, described layering supporting construction is made of the support belt (16) of a plurality of stacked arrangement up and down.
CNA2008101846515A 2007-12-14 2008-12-11 Device for forming an extended nip Pending CN101457497A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200710060400 DE102007060400B3 (en) 2007-12-14 2007-12-14 Apparatus for forming an extended nip
DE102007060400.0 2007-12-14

Publications (1)

Publication Number Publication Date
CN101457497A true CN101457497A (en) 2009-06-17

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Family Applications (1)

Application Number Title Priority Date Filing Date
CNA2008101846515A Pending CN101457497A (en) 2007-12-14 2008-12-11 Device for forming an extended nip

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EP (1) EP2071075A1 (en)
CN (1) CN101457497A (en)
DE (1) DE102007060400B3 (en)
EA (1) EA016852B1 (en)
ZA (1) ZA200810511B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114929959A (en) * 2020-01-10 2022-08-19 安德里茨库斯特斯有限责任公司 Composite nonwoven fabric web manufacturing method and composite nonwoven fabric web manufacturing apparatus

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DE3503819A1 (en) * 1984-12-21 1986-06-26 Sulzer-Escher Wyss GmbH, 7980 Ravensburg Hydraulic press shoe and its use and operation
DE4216264C2 (en) * 1992-05-16 2000-05-25 Voith Sulzer Papiermasch Gmbh Process for drying and loosening a paper web
US5951824A (en) * 1997-06-19 1999-09-14 Beloit Technologies, Inc. Compliant hydrodynamic/hydrostatic shoe for papermaking press
FI115985B (en) * 1997-10-14 2005-08-31 Metso Paper Inc Calender with an extended nip
FI117057B (en) * 2000-01-13 2006-05-31 Metso Paper Inc Method of pressing paper web and paper web press device
FI116734B (en) * 2001-10-25 2006-02-15 Metso Paper Inc A method for treating a paper or board web and a paper or board web handling device
DE10225255B3 (en) * 2002-06-07 2004-01-08 Voith Paper Patent Gmbh Calender arrangement and method for satinizing a material web
DE10233923A1 (en) * 2002-07-25 2004-02-12 Voith Paper Patent Gmbh Dewatering press for tissue paper has shoe with lower section fabricated from soft plastic and an upper section fabricated from bronze
DE10336230A1 (en) * 2003-08-07 2005-03-03 Voith Paper Patent Gmbh Device for treating a material web
DE102004003668A1 (en) * 2004-01-24 2005-10-13 Voith Paper Patent Gmbh De-watering or glazing station for paper, carton or tissue paper web has pressure pad with suction chamber at outer margin linked to vacuum pump
DE102004025941A1 (en) * 2004-05-27 2005-12-22 Voith Paper Patent Gmbh Mantle for a press roller with radial spring elasticity, in a papermaking machine, has center and flanking zones of different characteristics with a smooth characteristic transit between them

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114929959A (en) * 2020-01-10 2022-08-19 安德里茨库斯特斯有限责任公司 Composite nonwoven fabric web manufacturing method and composite nonwoven fabric web manufacturing apparatus
CN114929959B (en) * 2020-01-10 2023-11-21 安德里茨库斯特斯有限责任公司 Method and apparatus for manufacturing composite nonwoven fabric web

Also Published As

Publication number Publication date
DE102007060400B3 (en) 2009-05-28
EP2071075A1 (en) 2009-06-17
EA016852B1 (en) 2012-08-30
ZA200810511B (en) 2009-12-30
EA200802318A1 (en) 2009-06-30

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