WO2005100218A1 - A method and an apparatus for controlling a reel-up - Google Patents

A method and an apparatus for controlling a reel-up Download PDF

Info

Publication number
WO2005100218A1
WO2005100218A1 PCT/FI2005/050115 FI2005050115W WO2005100218A1 WO 2005100218 A1 WO2005100218 A1 WO 2005100218A1 FI 2005050115 W FI2005050115 W FI 2005050115W WO 2005100218 A1 WO2005100218 A1 WO 2005100218A1
Authority
WO
WIPO (PCT)
Prior art keywords
reel
web
reel spool
guiding
supporting member
Prior art date
Application number
PCT/FI2005/050115
Other languages
English (en)
French (fr)
Inventor
Ilkka Naatti
Teppo Kojo
Risto MÄKINEN
Vesa RIIHELÄ
Matti Kemppainen
Topi Tynkkynen
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
Publication of WO2005100218A1 publication Critical patent/WO2005100218A1/en

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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
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/02—Registering, tensioning, smoothing or guiding webs transversely
    • B65H23/032—Controlling transverse register of web
    • B65H23/0328—Controlling transverse register of web by moving the winding device
    • 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
    • B65H18/22—Mechanisms in which power is applied to web roll, e.g. to effect continuous advancement of web by friction band

Definitions

  • the invention relates to a method according to the preamble of the appended claim 1 for controlling a reel-up.
  • the invention also relates to an apparatus for implementing the aforementioned method in accordance with the preamble of the appended claim 17.
  • a continuous fiber web coming from the preceding process stages is reeled around a rotating reeling shaft, i.e. a reel spool to form a reel, a so- called machine reel.
  • a rotating reeling shaft i.e. a reel spool to form a reel, a so- called machine reel.
  • reeling concepts There are many known reeling concepts. It is possible to perform the reeling by means of a so-called pope-reeler, in which the web is passed on the reel by means of a reeling cylinder that rotates at web speed and is in contact with the reel that is being formed.
  • the cross-directional profiles of the web are formed in the paper machine and finishing machine before the reeling up process, and it is no longer possible to influence them by means of the reel-up.
  • the variation in the thickness of the web in the cross-direction is one example of such a cross-directional profile.
  • the profiles varying in the cross-direction of the web affect the quality of the reel that is being formed. It has been observed that a "smiling" or "cup-like" cross-directional profile of thickness is especially problematic, in which cross-directional profile the edges of the web are thicker than its central part, which, on the basis of calculations, is known to result in that the inner radial pressure distribution of the reel also has a shape that rises from the edges.
  • a web having edges thicker than the central part produces forces inside the machine reel which may cause internal movements. As a result of the movements, the bottom of the machine reel may bulge outward, which produces bottom or edge cracks.
  • the oscillation can be performed either by using a separate guiding device before the reel-up, by means of which the web is deflected in the axial direction of the reel spool or by moving the reel spool itself in the lateral direction with respect to the reeling cylinder, when the roll is located in the reeling station in the reel-up, as disclosed in the US patent 6,354,531 and WO publication 00/26131.
  • the oscillation of the web is performed by moving the reeling cylinder and the machine reel formed on the reel spool together, so that the reeling nip between them remains closed.
  • the reeling cylinder and the reel spool in nip contact with it is deflected in cycles in the travel direction of the web to be reeled so that a cyclic lateral deflection is produced in the reel that is being formed.
  • reeling by means of a reeling nip formed by means of the loop of an endless supporting member.
  • a supporting member such as a wire or a belt passed via guiding rolls to a reel formed around the reel spool.
  • the reeling nip is formed by means of the supporting member and the reel that is being formed.
  • the reeling nip becomes long, and the nip pressures in the reeling nip become smaller than in conventional reel-ups, which improves the controllability of the reeling nip.
  • Such a reeling method is disclosed e.g. in the EP publication 860391 .
  • the method according to the invention is pri- marily characterized in what will be presented in the characterizing part of the main independent claim 1.
  • the apparatus according to the invention is primarily characterized in what will be presented in the characterizing part of the inde- pendent claim 17.
  • the invention is based on the idea that in a reel-up comprising a reeling nip formed by means of the loop of an endless supporting member the web to be reeled is guided in the axial direction of the reel spool by moving either the reel spool or the guiding rolls guiding the loop of the supporting member.
  • the position of the reel spool or at least one of the guiding rolls is arranged movable.
  • the web In continuous oscillation of the web, the web is guided back and forth in cycles on the reel spool in the axial direction of the reel spool.
  • the guiding of the web takes place on the basis of measuring the position of the edges of the web performed before the supporting member.
  • the reel spool is moved by tu rning it and the machine reel formed thereon diagonally with respect to the incoming direction of the paper web.
  • the turning takes place by moving one or both ends of the reel spool substantially on the horizontal plane in such a manner that the web is guided in the axial direction to different points of the reel that is being formed. In other words the ends of the reel spool are moved linearly in the machine direction. If the aim is to oscillate the web, i.e. to guide it continuously in the axial direction of the reel spool to different points of the reel spool, the reel spool is moved back and forth in cycles. It is possible to move trie reel spool both when it is in the primary reeling device and when it has been transferred to the secondary reeling device.
  • the wire guiding rolls guiding the loop of the supporting member are moved by turning them into an inclined position in the travel direction of the paper web either vertically or in the machine direction, either one or both rolls.
  • the turning takes place by moving an end of the wire guiding roll, which produces the tightening of the supporting member carried by the wire guiding rolls on that side from which the wire guiding roll was moved.
  • This causes the travel of the web to a different location in the axial direction of the reel spool.
  • the oscillation of the web i.e. the movement of the web back and forth in the transverse direction is attained by moving one or both ends of the wire guiding roll in cycles in such a manner that the web travels in the axial direction of the reel spool to different points of the reel that is being formed.
  • the turning motion back and forth i.e. the amplitude of the oscillation is so small that the web remains on top of the supporting member during the entire reeling process.
  • the formation of the reel i.e. the inner tightness and other properties of the reel remain good also when the web is oscillated in accordance with the invention.
  • Fig. 1 illustrates the main principle of a belt reeler in a schematical side-view
  • Fig. 2a shows a schematical side-view of the process of guiding the web by moving the reel spool, when the reel spool is positioned in the primary reeling device
  • Fig. 2b shows a schematical side-view of the process of guiding the web by moving the reel spool, when the reel spool is positioned in the secondary reeling device
  • Fig. 2c shows a schematical top-view of the process of guiding the web in the axial direction of the reel spool by moving the reel spool
  • Fig. 3a shows a schematical side-view of the process of guiding the web by moving the guiding roll/ rolls of the supporting member when the reel spool is positioned in the rimary reeling device
  • Fig. 3b shows a schematical side-view of the process of guiding the web by moving the guiding roll/ rolls of the supporting member when the reel spool is positioned in the secondary reeling device
  • Fig. 3c shows a schematical top-view of the process of guiding the web in the axial direction of the reel spool by moving at least one guiding roll, when friction force prevails between the web and the supporting member,
  • Fig. 3d shows a schematical top-view of the process of guiding the web in the axial direction of the reel spool by moving at least one guiding roll, when no friction force prevails between the web and the supporting member
  • Fig. 4 shows schematically the adjustment and control arrangement for guiding the web, as well as the principle of centralizing the web.
  • Fig. 1 illustrates a continuously operating reel-up, where a paper web W, which is normally several meters wide and comes from a preceding section of a paper machine or a finishing apparatus for paper, travels via a reeling nip N1 to a reel R.
  • Said reel- up is a so-called belt reel-up in which the reeling nip is formed by means of a flexible supporting member 1 in the form of an endless loop, such as a belt or a wire.
  • the supporting member 1 is guided via two guiding rolls 2 and 3, at the location of each of which the run of the member 1 turns to the opposite direction.
  • the first guiding roll 2 can form a "hard nip" with the reel being started at the initial stage of the reeling in such a manner that the supporting member 1 is in contact with the reel at a point where the member travels supported by the guiding roll 2 on the surface of the roll.
  • the second guiding roll 3 can be a driven roll, i.e. a traction roll, or separate drives can be arranged for both rolls.
  • the web travels guided by the supporting member 1 onto the machine reel R, which is formed around a reel spool 5 rotatable with a center drive of its own. When the diameter of the machine reel R grows, it is transferred to the secondary reeling device 6.
  • the reel R is in constant contact with the supporting member during the entire reeling process.
  • the reel spool 5 it is possible for the reel spool 5 to move in the machine direction with respect to the loop of the supporting member 1 , and this is arranged in such a manner that the bearing housings at the ends of the reel spool that enable the rotation of the reel spool 2 are at both ends of the reel spool supported on carriages , i.e. transfer devices 6 that move on supporting structures 7.
  • the transfer devices 6 also function as a secondary reeling device.
  • In connection with the reel-up there is also a storage of empty reel spools 5 (not shown), from which the rolls are brought to the change station at the location of the first guiding roll 2 in order to change the web going to the machine reel R that is becoming full.
  • the reel change takes place at production speed i.e. the paper web passed at high speed to the full reel is changed to travel onto a new, empty reel spool brought to the change station.
  • Figs 2a and 2b show a side-view of an embodiment of the invention to guide the web in the axial direction of the reel spool.
  • the figures illustrate the control of the web by moving the reel spool 5, in which the web W is guided in the axial direction of the reel spool by turning one or both ends of the reel spool 5 in the machine direction either in or against the machine direction, which movement is shown by means of an arrow A.
  • This direction of motion of the reel spool 5 and the machine reel formed thereon have been presented schematically in Fig. 2b also by means of an arrow A.
  • Fig. 2c shows in a top view a situation in the guidance of the web in which one end 51 of the reel spool has been turned against the machine direction, i.e. towards the guiding roll 2.
  • the supporting member 1 travels via the guiding rolls 2 and 3 and th e web W enters the supporting member perpendicularly in the direction of the arrow B (machine direction).
  • the reel spool 5 and the supporting member 1 are in constant nip contact at least for the part of the reel spool 5 extending across the width of the web.
  • the s upporting member 1 tends to move in the direction of the arrow E (the end of the reel spool 52 closer to the incoming web W and the guiding roll 2) and the web W travels towards the end 52 of the reel spool.
  • the moving of the reel spool can be attained by means of suitable actuators, for example by means of transfer devices 6.
  • the guidance of the web in the axial direction of the reel spool is attained by turning the guiding rolls guiding the loop of the supporting member to a diagonal position in the travel direction of the paper web, i.e_ either in the vertical direction or in the machine direction.
  • one or both ends of said guiding roll is/are thus turned.
  • arrows F and G schematically illustrate possible movement directions of the guiding rolls 2 and 3 when seen from the side of the reel-up when the reel spool is in the primary reeling device (Fig. 3a) and in the secondary reeling device (Fig. 3b). If both guiding rolls 2 and 3 are turned to attain the guidance, it is essential to turn both wire guiding rolls on the same plane of movement.
  • Fig. 3c shows in a top view a situation in which, by turning the guiding roll 2, the web W has been guided to a different location in the axial direction of the reel spool 5.
  • the reel spool 5 is substantially perpen- dicular to the travel direction of the web W prevailing before the supporting member 1.
  • the end 21 of the guiding roll 2 has been turned into a diagonal position against the machine direction, i.e. towards the incoming direction of the web W (arrow B), wherein the edge of the supporting member 1 on the side of the other end 22 of said guiding roll is closer to the end 52 of the reel spool 5. This results in that the supporting member 1 is tightened from one edge, i.e.
  • the web W is slackened in the vicinity of the end 52 of the reel spool, which causes the guiding of the web in the direction of the arrow H, i.e. in the axial direction of the reel spool 5 towards the end 52 oi the reel spool.
  • the effect of the turning of the guiding roll 2 on the supporting member 1 must be compensated by turning the second guiding roll 3 of the supporting member 1 into a diagonal position in the opposite direction, i.e. machine direction in such a manner that the end of the guiding roll 3 is turned away from the end 21 of the first guiding roll 2.
  • the second guiding roll acts as a compensation roll that prevents the supporting member from being guided off the guiding rolls.
  • the guiding of the rolls takes place as presented above when the web to be reeled is for example uncoated, wherein friction force prevails between the web W and the supporting member 1 , said friction force holding the web against the supporting member 1.
  • the holding and control produced by the supporting member on the web also guide the web.
  • a spreading roll 10 is advantageously used before the reel-up, said spreading roll guiding the web W and causing it enter the supporting member 1 perpendicularly. This guidance situation is shown in a schematical top-view in Fig. 3d.
  • the use of the spreading roll affects the non-wrinkleness of the web and its guidance before the nip, and especially the positions of the guiding rolls 2 and 3, when the web is guided to a different location in the axial direction of the reel spool, because components of the spreading forces in the lateral direction of the spreading roll 10 affect especially the tighter edge of the supporting member 1 , thus making the web W move towards the tighter edge.
  • the effect of the spreading roll to the behaviour of the web must thus be taken into account when turning the guiding roll/rolls.
  • Fig. 3d the guiding rolls 2 and 3 have been turned in the machine direction in such a manner that the end 22 of the guiding roll 2 has been turned against the machine direction and this movement of the guiding roll has been compensated by moving the end 32 of the guiding roll 3 to the opposite direction, i.e. machine direction (arrow B).
  • machine direction arrow B
  • the edge of the supporting member 1 on the side of these ends is thus tighter and the web moves towards the same.
  • the aim is to guide the web to another direction on the reel spool 5
  • the end 21 of the guiding roll 2 is turned against the machine direction and the end 31 of the guiding roll 3 is turned in the machine direction.
  • the e dge of the supporting member on the side of these roll ends is tighter a.nd the web is guided to this end of the reel spool 5.
  • the above-described alternatives for guiding the web on the reel spool are also suitable for oscillation of the web, i.e. for guiding the we b continuously to different points in the axial direction of the reel spool.
  • the turning motion of the reel spool or the guiding roll/rolls is attained by turning one or both ends of said roll back and forth in cycles. If the guiding is performed by means of the reel spool, one or both of its ends are turned in the machine direction. If the guiding is performed by means of one or both guiding rolls guiding the supporting member, one or both of their ends is/are turned either in the machine direction or vertically.
  • the control arrangement of the control and oscillation of the web is shown schematically in Fig. 4.
  • the oscillation of the web by means of turning the reel spool 5 or the guiding rolls 2 and/or 3 is controlled with control means 9, which get the profile information of the web from sensors that are attached to the measurement beam 11 and measure the web continuously across its entire width.
  • the measurement beam is lo- cated before the reel-up in the travel direction of the web.
  • the control unit 9 calculates the control information necessary for changing the position of the roll to be turned, i.e. the reel spool, or one or both guiding rolls, and sends it to the roll in question.
  • the control unit When the oscillation of the web is performed by turning the guiding rolls, the control unit also controls the position of the other roll, i.e. the compensation roll either in accordance with a predetermined oscillation sequence, or the control unit can utilize the position information at- tained from the position of the roll to be turned.
  • the position of the ro ll to be turned is measured for example by means of LVDT sensors 14, which can be attached to a suitable location, for example to the ends of the rolls 2 and 3, and said position information is transmitted to the control unit 9.
  • the control unit 9 sends a control message further to another turnable roll i.e. the compensation roll.
  • the position information of the roll 2 i.e.
  • the roll to be turned is transmitted to the control unit, on the basis of which it transmits a control message to the compensation roll 3. It is possible to transmit the measurement and control messages by means of any known signal transmission method, either by means of guides, a field bus, or wirelessly. When wireless signal transmission is used, it is necessary to install transmitter-receiver pairs at the ends of the rolls and in the control unit.
  • the oscillation has certain maximum amplitude which is dependent on the oscillation mechanism or otherwise restricted.
  • the maximum value of the amplitude can be dependent for example on the maximum cylinder stroke of the actuators effecting the oscillation.
  • the oscillation speed i.e. frequency, in turn, can be made dependent on the running speed of the machine. It can be directly proportional thereto.
  • Each running speed of the machine may have a particular frequency, as presented hereinbelow.
  • the frequency (amplitude) of the reel spool in the axial direction is typically 100 at the most, advantageously between 2 and 50 mm, when expressed as the distance between the extreme positions of the edges of the web in the axial direction of the reel spool. To maintain a good structure in the reel, the oscillation must not be too rapidly deflecting.
  • the maximum oscillation frequency is advantageously such that during one cycle at least 100 m, advantageously at least 200 m of web is reeled on the reel.
  • the dis- tance of 100 m represents the frequency of 0.25 Hz (1 cycle/4 seconds).
  • the minimum frequencies and the optimum frequencies may be determined in meters in a corresponding manner.
  • the profile is at a certain moment such that the oscillation takes place at maximum amplitude (for example within the limits of the maximum cylinder stroke of the actuators).
  • a shorter oscillation i.e. oscillation of smaller amplitude begins.
  • it is possible to transfer the effective area of the amplitude of oscillation i.e. when os- dilating at an amplitude smaller than the maximum amplitude, it is possible to change the location of the extreme points of the oscillation in the lateral direction.
  • a transfer in a way "aside" from the preceding point takes place, wherein the amplitude of the oscillation can also remain the same.
  • the oscillation can be started and its amplitude can be increased also in cases of other kinds of profiles, also for profiles rising towards the middle from the edges or for such profiles in which the deflections are more irregular and the profile is more like wavy or irregular, comprising randomly occurring peaks.
  • the control unit 9 can be programmed beforehand in the control unit 9 to start the oscillation and to adjust it on the basis of the calculation results.
  • the web W enters the supporting member 1 of the reel-up in the direction of the arrow B.
  • Measurement means 12 and 13 are placed be- fore the supporting member, on both sides of the width of the web W, and substantially at the same point of the web, said measurement means measuring the position of the edges of the web.
  • the measurement means 12 and 13 can be for example optical measurement devices based on reflectance or transmittance of light, or measurement devices based on camera technology. Depending on the measurement principle, the exact location of the measurement means and the way of conveying the web before the supporting member, the measurement means are positioned either only above or below the web, or on both sides of the web. Possible measurement configuration can be for example a CCD line camera that measures the edge area of the web with the reflectance principle.
  • the apparatus comprises a light source integrated in the same housing with the camera unit. The camera and the light source are installed on the edge of the web, perpendicularly to the travel direction of the web in such a manner that part of the illumination and the measurement area of the camera is positioned outside the edge of the web.
  • the camera separates the web and the areas remaining outside its edges on the basis of their different reflection intensity, of which a measurement message is transmitted to the control unit 9.
  • the location of the measurement means in the axial direction of the reel spool 5 has been determined beforehand, and thus the control unit is capable of determining the location of the web W on the reel spool on the basis of the measurement message.
  • the measurement means 12 and 13 can also be attached to the measurement beam 11.
  • the control unit transmits a control message to a desired member correcting the position of the web on the reel spool, which can be the above-presented reel spool 5 or guiding roll or rolls 2 and/or 3. It is also possible to monitor and adjust the position of the reel spool and the guiding roll 2 and/or 3 as presented above.
  • the measurement means 12 and 13 are positioned on both sides of the width of the supporting member 1 , substantially at the same point with respect to the length of the supporting member, in the machine direction either at the location of the guiding roll 2 or after the same.
  • these measurement means 12 and 13 measuring the edges of the supporting member are shown in broken lines.
  • Such a measurement can be installed to replace conventional edge controllers, for example mechanical spoon solutions used for supporting members, such as wires.
  • the invention is not intended to be limited to the embodiments presented as examples above, but the invention is intended to be applied widely within the scope of the inventive idea as defined in the appended claims.
  • the invention can be applied not only in connection with papermaking, but also in reeling of paperboard or tissue paper and in finishing machines relating thereto.
  • the invention can also be applied in so-called re-reelers.

Landscapes

  • Replacement Of Web Rolls (AREA)

Abstract

20 (57) Tiivistelmä Menetelmä ja laitteisto rullaimen ohjaamiseksi, jossa rullaimessa paperirainaa tai vastaavaa (W) rullataan tampuuritelan (5) ympärille rullaksi (R) rullausnipin (N) kautta. Rullausnippi (N) on muodostettu päättymättömän tukielimen (1) silmukan, joka on viety kahden johtotelan (2, 3) kautta ja tampuuritelan (5) ja sille muodostuvan rullan (R) avulla. Tampuuritelalle (5) ja sille muodostu- valle rullalle (R) rullattavaa rainaa (W) ohjataan tampuu- ritelan (5) aksiaalisuunnassa kääntämällä tampuuritelaa (5) tai ainakin toista johtotelaa (2, 3). Fig. 2c
PCT/FI2005/050115 2004-04-14 2005-04-08 A method and an apparatus for controlling a reel-up WO2005100218A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20045133A FI118531B (fi) 2004-04-14 2004-04-14 Menetelmä ja laitteisto rullaimen ohjaamiseksi
FI20045133 2004-04-14

Publications (1)

Publication Number Publication Date
WO2005100218A1 true WO2005100218A1 (en) 2005-10-27

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Application Number Title Priority Date Filing Date
PCT/FI2005/050115 WO2005100218A1 (en) 2004-04-14 2005-04-08 A method and an apparatus for controlling a reel-up

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FI (1) FI118531B (fi)
WO (1) WO2005100218A1 (fi)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2055658A3 (de) * 2007-10-29 2011-01-05 Voith Patent GmbH Verfahren und Vorrichtung zum Aufwickeln einer Materialbahn zu einer Materialbahnrolle
EP2949476A1 (en) * 2014-05-28 2015-12-02 OCE-Technologies B.V. Image forming apparatus and method to compensate wobble of a roll in an image forming apparatus
CN108910581A (zh) * 2018-08-06 2018-11-30 中山市智达合众医疗器械有限公司 一种诊疗床的收纸纠偏装置
CN109482670A (zh) * 2018-11-08 2019-03-19 河南万达铝业有限公司 精轧辊轴限位助卷装置及助卷方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999055608A1 (en) * 1998-04-24 1999-11-04 Valmet Corporation Reel-up
EP0959032A1 (de) * 1998-05-18 1999-11-24 Voith Sulzer Papiertechnik Patent GmbH Verfahren und Wickelmaschine zum Aufwickeln einer Materialbahn
WO2000026131A1 (en) * 1998-11-04 2000-05-11 Metso Paper, Inc. Method and apparatus for controlling the reel structure
US6354531B1 (en) * 1998-02-19 2002-03-12 Metso, Paper, Inc. Apparatus and method for continuously reeling a web material
US6536705B1 (en) * 1999-08-20 2003-03-25 Voith Sulzer Papiertechnik Patent Gmbh Process and winding machine for winding a material web
US6698681B1 (en) * 2002-10-04 2004-03-02 Kimberly-Clark Worldwide, Inc. Apparatus and method for winding paper

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6354531B1 (en) * 1998-02-19 2002-03-12 Metso, Paper, Inc. Apparatus and method for continuously reeling a web material
WO1999055608A1 (en) * 1998-04-24 1999-11-04 Valmet Corporation Reel-up
EP0959032A1 (de) * 1998-05-18 1999-11-24 Voith Sulzer Papiertechnik Patent GmbH Verfahren und Wickelmaschine zum Aufwickeln einer Materialbahn
WO2000026131A1 (en) * 1998-11-04 2000-05-11 Metso Paper, Inc. Method and apparatus for controlling the reel structure
US6536705B1 (en) * 1999-08-20 2003-03-25 Voith Sulzer Papiertechnik Patent Gmbh Process and winding machine for winding a material web
US6698681B1 (en) * 2002-10-04 2004-03-02 Kimberly-Clark Worldwide, Inc. Apparatus and method for winding paper

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2055658A3 (de) * 2007-10-29 2011-01-05 Voith Patent GmbH Verfahren und Vorrichtung zum Aufwickeln einer Materialbahn zu einer Materialbahnrolle
EP2949476A1 (en) * 2014-05-28 2015-12-02 OCE-Technologies B.V. Image forming apparatus and method to compensate wobble of a roll in an image forming apparatus
CN108910581A (zh) * 2018-08-06 2018-11-30 中山市智达合众医疗器械有限公司 一种诊疗床的收纸纠偏装置
CN109482670A (zh) * 2018-11-08 2019-03-19 河南万达铝业有限公司 精轧辊轴限位助卷装置及助卷方法

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Publication number Publication date
FI20045133A0 (fi) 2004-04-14
FI20045133A (fi) 2005-10-15
FI118531B (fi) 2007-12-14

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