US20010002381A1 - Take-out leading roll, spreader roll, or equivalent for a web-like material - Google Patents
Take-out leading roll, spreader roll, or equivalent for a web-like material Download PDFInfo
- Publication number
- US20010002381A1 US20010002381A1 US09/297,491 US29749199A US2001002381A1 US 20010002381 A1 US20010002381 A1 US 20010002381A1 US 29749199 A US29749199 A US 29749199A US 2001002381 A1 US2001002381 A1 US 2001002381A1
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- United States
- Prior art keywords
- roll
- axle
- bearings
- end parts
- mantle
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C13/00—Rolls, drums, discs, or the like; Bearings or mountings therefor
- F16C13/003—Bowed or curved rolls
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- 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
- B65H23/022—Registering, tensioning, smoothing or guiding webs transversely by tentering devices
- B65H23/025—Registering, tensioning, smoothing or guiding webs transversely by tentering devices by rollers
- B65H23/0258—Registering, tensioning, smoothing or guiding webs transversely by tentering devices by rollers with a bowed axis
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H27/00—Special constructions, e.g. surface features, of feed or guide rollers for webs
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- 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
- B65H2404/10—Rollers
- B65H2404/13—Details of longitudinal profile
- B65H2404/137—Means for varying longitudinal profiles
- B65H2404/1371—Means for bending, e.g. for controlled deflection
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- 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
- B65H2404/10—Rollers
- B65H2404/17—Details of bearings
- B65H2404/171—Details of bearings beam supply
Definitions
- the invention concerns a take-out leading roll, spreader roll, or equivalent for a web-like material, which roll comprises a non-revolving roll axle and a roll mantle journalled revolvingly by means of bearings on said roll axle, and which roll can be bent to the shape of the desired arc.
- take-out leading rolls and spreader rolls have been formed most commonly so that they have a continuous axle and a roll mantle fitted on the axle, which roll mantle is again composed of a number of parts.
- the take-out leading roll can be made to be curved to the desired shape by shifting the outer journalling points of the roll mantle in the radial direction, in which connection the mantle forms an arc or a broken line.
- each of the mantle parts is journalled separately on the axle, in which case the arrangement comprises a number of bearings.
- the conventional solutions involve a number of problems and drawbacks, which are, among other things, problems of journalling of the roll and peaks of heat produced by the journalling in the paper web.
- the object of the present invention is to provide a novel construction of a take-out leading roll, spreader roll or equivalent, by whose means the problems related to the prior art described above are avoided.
- the invention is mainly characterized in that the roll mantle is a continuous, tubular mantle, and that the roll axle consists of three parts linked with one another, i.e. of two end parts and of a middle part, which are pivotal in relation to one another for the purpose of bending the roll mantle.
- FIG. 1 is a fully schematic sectional view of a roll in accordance with the invention, in particular illustrating the mechanism of bending of the roll.
- FIG. 2 is a more detailed illustration of the mechanism of bending of the roll as shown in FIG. 1.
- FIG. 3 is an illustration corresponding to FIG. 2 of an alternative construction of the mechanism of bending.
- FIG. 4 is an illustration corresponding to FIGS. 2 and 3 of a further alternative embodiment of the mechanism of bending.
- the roll is denoted generally with the reference numeral 10 .
- the roll 10 comprises a roll mantle 11 , which is fitted to revolve on a non-revolving axle 12 a, 12 b.
- the roll axle consists of three parts, i.e. the end parts 12 a and the middle part 12 b.
- support sleeves 13 In the end areas of the roll 10 , support sleeves 13 have been fitted, on which the roll mantle 11 itself is again mounted.
- the roll mantle 11 is journalled on the axle 12 a, 12 b through said support sleeves 13 by means of bearings 14 , 15 , which form a pair of bearings and which have been mounted, in the way illustrated in FIG. 1, at an axial distance from one another.
- the roll mantle 11 is continuous and extends from end to end in the roll.
- the mechanism of bending of the roll is denoted generally with the reference numeral 20 , and different alternative embodiments of said mechanism of bending are described in more detail in relation to FIGS. 2 to 4 .
- FIG. 2 shows a first embodiment of the mechanism 20 of bending of the roll, which corresponds to the illustration of FIG. 1 on a larger scale.
- FIG. 2 illustrates one end area of the roll 10 , but it is understood that the opposite end of the roll comprises a fully similar construction.
- the axle of the roll 10 consists of three parts, i.e. of an end part 12 a placed in each end area of the roll and of a middle part 12 b interconnecting these end parts.
- support sleeves 13 have been fitted, which have been mounted revolvingly on the end parts 12 a of the axle by means of pairs of bearings, i.e.
- the roll mantle 11 has been fitted on the support sleeves 13 so that the bearings 14 , 15 alone take care of the journalling of the roll mantle 11 without necessity of using bearings in the middle area of the roll at all.
- the end parts 12 a of the axle extend, in the axial direction of the pair of bearings, from the inner bearings 15 a certain distance in the axial direction into the roll, and the middle part 12 b of the axle is a tubular piece, in the way illustrated in the figures, into whose interior the parts of the end parts 12 a of the axle that extend inwards axially from the inner bearings 15 of the pair of bearings penetrate.
- the end parts 12 a and the middle part 12 b are interconnected by means of an articulated joint member 25 , which prevents the end parts 12 a and the middle part 12 b from moving in relation to one another in the radial direction, but which permits an inclining of said end parts and the middle part in relation to one another in the axial direction of the roll.
- the inner diameter of the tubular middle part 12 b of the axle is substantially larger than the outer diameter of the end parts 12 a, so that said inclining of the end parts 12 a and the middle part 12 b in relation to one another around the articulated joint member 25 is permitted.
- the end parts 12 a of the axle are also hollow, tubular pieces, into whose interior the parts of the mechanism of bending of the roll have been fitted.
- the bending mechanism 20 comprises a cam member 21 , which is mounted pivotally in the wall 12 a ′ of the tubular end part by means of an articulation pin 22 placed in the cross direction of the roll so that, in relation to said articulation pin 22 , the cam member 21 forms a two-arm lever, whose inner end penetrates into the interior of the tubular end part 12 a and whose outer end extends through the wall 12 a ′ of said tubular end part to outside the end part and rests against the inner face 12 b ′ of the middle part 12 b.
- a regulation rod 23 is fitted, which is displaceable in the axial direction and which is supported against the wall 12 a ′ of the tubular end part so that the regulation rod 23 is placed centrally inside the end part 12 a.
- the inner end of the regulation rod 23 is supported against the cam member 21 .
- the regulation rod 23 is provided, for example, with screw means or equivalent members (not shown) so that, when the regulation rod 23 is rotated, it can be shifted precisely in the axial direction of the roll into the desired position.
- the regulation mechanism 20 is shown in the neutral position, i.e. in a position in which the roll is not bent. Further, in the illustration in FIG.
- the cam member 21 rests against the inner face 12 b ′ of the middle part of the axle. This is, however, not fully indispensable in view of the operation, for in said neutral position there may be a little gap between the cam member 21 and the inner face 12 b ′ of the middle part.
- the cam member 21 is shaped so that, when the regulation rod 23 starts being shifted in the axial direction, for example by rotating, inwards in the roll, the regulation rod 23 , at the same time, pivots the cam member 21 around the articulation pin 22 , in which connection, as the cam member 21 pivots, it is supported with a greater force against the inner face 12 b ′ of the middle part 12 b of the axle while at the same time increasing the distance between the end part 12 a and the middle part 12 b of the axle at the side of the cam member 21 . In this connection the axle bends.
- FIG. 3 shows an alternative embodiment of the mechanism of regulation of bending of the roll.
- the regulation mechanism is denoted with the reference 20 A.
- the end area of the roll is in the other respects identical with that described in relation to FIG. 2, so that, in the following, the construction shown in FIG. 3 will be described in respect of the regulation mechanism only.
- the regulation mechanism 20 A is hydraulically operated. In the axial direction, the inner end of the end part 12 a of the axle is closed by means of a wall 22 A, and a piston 24 A has been fitted inside the tubular end part 12 a so that said piston 24 A and the end 22 A define a cylinder space 26 A between them.
- the cylinder space 26 A is filled with a pressure medium, for example hydraulic fluid.
- the piston 24 A is connected with a rod 23 A, which penetrates axially out through the roll end.
- a screw member 27 A is fitted in the end part 12 a of the axle, by means of which screw member 27 A the rod 23 A and, thus, the piston 24 A can be regulated and shifted in the axial direction of the roll.
- the volume of the cylinder space 26 A can be changed.
- a piston member 21 A has been fitted, which penetrates radially through said wall 12 ′, which rests against the inner wall 12 b ′ of the middle part 12 b of the roll axle, and upon which piston member 21 A the pressure in the cylinder space 26 A can act.
- the pressure is increased in said cylinder space 26 A and shifts the piston member 21 A in the radial direction outwards with a greater force against the inner wall 12 b ′ of the middle part of the axle. In such a case, the axle and, thus, the whole roll 10 can be bent in the desired way.
- FIG. 4 differs from the illustrations in FIGS. 2 and 3 exclusively in respect of the bending mechanism 20 B, and in the other respects, in this figure, the same reference denotations have been used as in said FIGS. 2 and 3.
- the bending mechanism 20 B consists of a regulation rod 23 B, which has been fitted axially inside the tubular end part 12 a of the roll axle.
- a screw member 27 B or an equivalent device is fitted, by whose means the regulation rod 23 B can be shifted and regulated in the axial direction.
- an oblique, wedge-shaped face 24 B has been formed.
- a radially extending and moving wedge piece 21 B has been fitted, which is supported against the inner face 12 b ′ of the middle part 12 b of the roll axle, on one hand, and against the wedge-shaped face 24 B of the regulation rod 23 B, on the other hand.
- a support 22 B has been fitted inside the tubular end part 12 a, on which support 22 B the regulation rod 23 B rests.
- the wedge piece 21 B can be made to move in the radial direction so that, when the regulation rod 23 B is shifted axially inwards in the roll, the wedge piece 21 B moves radially outwards and rests with a greater force against the inner face 12 b ′ of the middle part 12 b of the roll axle.
- the bearing arrangements can be eliminated in the roll completely from under the paper web, in which case the heat arising from the bearings does not cause a marking in the paper web.
- the bearings can be fitted exclusively in the end areas in the roll, in which case their lubrication and cooling can be arranged easily. Further, it is significant from the point of view of the invention that, owing to its bending mechanism, the roll 10 retains its curved form even if it had been removed from the machine.
- a roll mantle 11 consisting of one part on the roll.
- the mantle can be made of a composite material, in which connection, when the composite mantle is being manufactured, its rigidity can be varied readily by just changing the fibre angle. In this way, constructions with different rigidities in different locations of the roll can be obtained, whereby the bending curve of the roll can be shaped as desired. Moreover, in respect of its resistance to fatigue, composite is an excellent material.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Treatment Of Fiber Materials (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
- Paper (AREA)
- Rolls And Other Rotary Bodies (AREA)
- Absorbent Articles And Supports Therefor (AREA)
- Replacement Of Web Rolls (AREA)
- Preliminary Treatment Of Fibers (AREA)
Abstract
Description
- The invention concerns a take-out leading roll, spreader roll, or equivalent for a web-like material, which roll comprises a non-revolving roll axle and a roll mantle journalled revolvingly by means of bearings on said roll axle, and which roll can be bent to the shape of the desired arc.
- Take-out leading rolls and spreader rolls have been formed most commonly so that they have a continuous axle and a roll mantle fitted on the axle, which roll mantle is again composed of a number of parts. The take-out leading roll can be made to be curved to the desired shape by shifting the outer journalling points of the roll mantle in the radial direction, in which connection the mantle forms an arc or a broken line. As a rule, each of the mantle parts is journalled separately on the axle, in which case the arrangement comprises a number of bearings. The conventional solutions involve a number of problems and drawbacks, which are, among other things, problems of journalling of the roll and peaks of heat produced by the journalling in the paper web. The making of the mantle of a number of parts may also constitute a considerable problem, because the gaps between the parts may mark the paper web and because the arc form of the roll is not optimal, but the line of shape of the roll is shaped as a broken line. Further, owing to the metallic roll mantle, problems of corrosion may arise. One such prior-art spreader roll is described, for example, in the U.S. Pat. No. 4,692,971. Attempts have been made to provide an improvement over such a prior-art spreader roll, for example, so that a coating layer of a resilient material has been fitted onto the metal mantle consisting of a number of parts, the objective of this arrangement being in particular to provide an improvement concerning the problem of marking of the paper web and concerning optimization of the arc form of the roll. However, the journalling system of the roll is similar to that described above, and, thus, also the problems related to the journalling are unchanged. Such a spreader roll is described, for example, in the Canadian Patent No. 766,843.
- Earlier, attempts have been made to find a solution for the problem arising from a roll mantle consisting of a number of parts also so that, as the roll mantle, a continuous metal tube mantle has been used which has been provided with “cuts”, i.e. into which slots have been formed in order to facilitate the bending of the roll mantle. This construction, however, causes its own problems, one remarkable one of said problems being the fact that, owing to its construction, the roll mantle becomes quite slack, i.e. excessively readily bending. In such a case, the roll mantle concerned must be supported on the roll axle by means of bearings at a number of points, for which reason the problems described above and arising from the journalling remain unchanged. Also, the cost of manufacture of the roll mantle is relatively high because of the mode of manufacture.
- The object of the present invention is to provide a novel construction of a take-out leading roll, spreader roll or equivalent, by whose means the problems related to the prior art described above are avoided. In view of achieving the objectives of the invention, the invention is mainly characterized in that the roll mantle is a continuous, tubular mantle, and that the roll axle consists of three parts linked with one another, i.e. of two end parts and of a middle part, which are pivotal in relation to one another for the purpose of bending the roll mantle.
- By means of the invention, quite a considerable advantage is achieved over the prior art, and of the advantages obtainable by means of the invention, for example, the following should be stated. Owing to the construction in accordance with the invention, in the roll it is possible to use a mantle consisting of one part. As the material of the mantle, it is favourably possible to use a composite material, in which case the lowest natural frequencies of the roll can be raised to such a high level that a roll mantle supported exclusively at the ends can be used as the construction. In such a case the problems of heat arising from journalling, related to the prior art, can be avoided. When a fully continuous roll mantle with no gaps is used, all problems of marking of the paper web can also be avoided. When a composite material is used as the material of the roll mantle, all problems of corrosion can also be avoided. The further advantages and characteristic features of the invention come out from the following detailed description of the invention.
- In the following, the invention will be described by way of example with reference to the figures in the accompanying drawing.
- FIG. 1 is a fully schematic sectional view of a roll in accordance with the invention, in particular illustrating the mechanism of bending of the roll.
- FIG. 2 is a more detailed illustration of the mechanism of bending of the roll as shown in FIG. 1.
- FIG. 3 is an illustration corresponding to FIG. 2 of an alternative construction of the mechanism of bending.
- FIG. 4 is an illustration corresponding to FIGS. 2 and 3 of a further alternative embodiment of the mechanism of bending.
- In FIG. 1 the roll is denoted generally with the
reference numeral 10. Theroll 10 comprises aroll mantle 11, which is fitted to revolve on anon-revolving axle end parts 12 a and themiddle part 12 b. In the end areas of theroll 10,support sleeves 13 have been fitted, on which theroll mantle 11 itself is again mounted. Thus, theroll mantle 11 is journalled on theaxle support sleeves 13 by means ofbearings roll mantle 11 is continuous and extends from end to end in the roll. In FIG. 1, the mechanism of bending of the roll is denoted generally with thereference numeral 20, and different alternative embodiments of said mechanism of bending are described in more detail in relation to FIGS. 2 to 4. - FIG. 2 shows a first embodiment of the
mechanism 20 of bending of the roll, which corresponds to the illustration of FIG. 1 on a larger scale. Thus, FIG. 2 illustrates one end area of theroll 10, but it is understood that the opposite end of the roll comprises a fully similar construction. As came out in the description above, the axle of theroll 10 consists of three parts, i.e. of anend part 12 a placed in each end area of the roll and of amiddle part 12 b interconnecting these end parts. Further, referring to the description above, in the end areas of the roll,support sleeves 13 have been fitted, which have been mounted revolvingly on theend parts 12 a of the axle by means of pairs of bearings, i.e. thebearings roll mantle 11 has been fitted on thesupport sleeves 13 so that thebearings roll mantle 11 without necessity of using bearings in the middle area of the roll at all. Theend parts 12 a of the axle extend, in the axial direction of the pair of bearings, from the inner bearings 15 a certain distance in the axial direction into the roll, and themiddle part 12 b of the axle is a tubular piece, in the way illustrated in the figures, into whose interior the parts of theend parts 12 a of the axle that extend inwards axially from theinner bearings 15 of the pair of bearings penetrate. Theend parts 12 a and themiddle part 12 b are interconnected by means of an articulatedjoint member 25, which prevents theend parts 12 a and themiddle part 12 b from moving in relation to one another in the radial direction, but which permits an inclining of said end parts and the middle part in relation to one another in the axial direction of the roll. The inner diameter of thetubular middle part 12 b of the axle is substantially larger than the outer diameter of theend parts 12 a, so that said inclining of theend parts 12 a and themiddle part 12 b in relation to one another around the articulatedjoint member 25 is permitted. Theend parts 12 a of the axle are also hollow, tubular pieces, into whose interior the parts of the mechanism of bending of the roll have been fitted. - In the exemplifying embodiment of FIG. 2, the
bending mechanism 20 comprises acam member 21, which is mounted pivotally in thewall 12 a′ of the tubular end part by means of anarticulation pin 22 placed in the cross direction of the roll so that, in relation to saidarticulation pin 22, thecam member 21 forms a two-arm lever, whose inner end penetrates into the interior of thetubular end part 12 a and whose outer end extends through thewall 12 a′ of said tubular end part to outside the end part and rests against theinner face 12 b′ of themiddle part 12 b. Further, in the interior of thetubular end part 12 a, aregulation rod 23 is fitted, which is displaceable in the axial direction and which is supported against thewall 12 a′ of the tubular end part so that theregulation rod 23 is placed centrally inside theend part 12 a. The inner end of theregulation rod 23 is supported against thecam member 21. Theregulation rod 23 is provided, for example, with screw means or equivalent members (not shown) so that, when theregulation rod 23 is rotated, it can be shifted precisely in the axial direction of the roll into the desired position. In FIG. 2, theregulation mechanism 20 is shown in the neutral position, i.e. in a position in which the roll is not bent. Further, in the illustration in FIG. 2, thecam member 21 rests against theinner face 12 b′ of the middle part of the axle. This is, however, not fully indispensable in view of the operation, for in said neutral position there may be a little gap between thecam member 21 and theinner face 12 b′ of the middle part. Thecam member 21 is shaped so that, when theregulation rod 23 starts being shifted in the axial direction, for example by rotating, inwards in the roll, theregulation rod 23, at the same time, pivots thecam member 21 around thearticulation pin 22, in which connection, as thecam member 21 pivots, it is supported with a greater force against theinner face 12 b′ of themiddle part 12 b of the axle while at the same time increasing the distance between theend part 12 a and themiddle part 12 b of the axle at the side of thecam member 21. In this connection the axle bends. - FIG. 3 shows an alternative embodiment of the mechanism of regulation of bending of the roll. In FIG. 3, the regulation mechanism is denoted with the
reference 20A. The end area of the roll is in the other respects identical with that described in relation to FIG. 2, so that, in the following, the construction shown in FIG. 3 will be described in respect of the regulation mechanism only. In the embodiment of FIG. 3, theregulation mechanism 20A is hydraulically operated. In the axial direction, the inner end of theend part 12 a of the axle is closed by means of a wall 22A, and apiston 24A has been fitted inside thetubular end part 12 a so that saidpiston 24A and the end 22A define a cylinder space 26A between them. The cylinder space 26A is filled with a pressure medium, for example hydraulic fluid. Thepiston 24A is connected with arod 23A, which penetrates axially out through the roll end. In the exemplifying embodiment shown in FIG. 3, ascrew member 27A is fitted in theend part 12 a of the axle, by means of whichscrew member 27A therod 23A and, thus, thepiston 24A can be regulated and shifted in the axial direction of the roll. When thepiston 24A is shifted in the axial direction, the volume of the cylinder space 26A can be changed. At the cylinder space 26A, in thewall 12 a′ of the tubular end part, apiston member 21A has been fitted, which penetrates radially through said wall 12′, which rests against theinner wall 12 b′ of themiddle part 12 b of the roll axle, and upon whichpiston member 21A the pressure in the cylinder space 26A can act. In this connection, when the volume of the cylinder space 26A is reduced by means of thepiston 24A, the pressure is increased in said cylinder space 26A and shifts thepiston member 21A in the radial direction outwards with a greater force against theinner wall 12 b′ of the middle part of the axle. In such a case, the axle and, thus, thewhole roll 10 can be bent in the desired way. - Finally, in FIG. 4, a further alternative solution of the bending mechanism of the roll is illustrated, which mechanism is denoted with the
reference 20B in FIG. 4. FIG. 4 differs from the illustrations in FIGS. 2 and 3 exclusively in respect of thebending mechanism 20B, and in the other respects, in this figure, the same reference denotations have been used as in said FIGS. 2 and 3. In the embodiment that is being described now, thebending mechanism 20B consists of aregulation rod 23B, which has been fitted axially inside thetubular end part 12 a of the roll axle. In the axial direction, at the outer end of theregulation rod 23B, ascrew member 27B or an equivalent device is fitted, by whose means theregulation rod 23B can be shifted and regulated in the axial direction. To the opposite end of theregulation rod 23B, i.e. to the inner end in the axial direction, an oblique, wedge-shapedface 24B has been formed. Further, to the inner end of theend part 12 a of the roll axle, a radially extending and movingwedge piece 21B has been fitted, which is supported against theinner face 12 b′ of themiddle part 12 b of the roll axle, on one hand, and against the wedge-shapedface 24B of theregulation rod 23B, on the other hand. At the side of theregulation rod 23B opposite in relation to thewedge piece 21B, a support 22B has been fitted inside thetubular end part 12 a, on which support 22B theregulation rod 23B rests. In such a case, when theregulation rod 23B is shifted in the axial direction, thewedge piece 21B can be made to move in the radial direction so that, when theregulation rod 23B is shifted axially inwards in the roll, thewedge piece 21B moves radially outwards and rests with a greater force against theinner face 12 b′ of themiddle part 12 b of the roll axle. By means of this arrangement, the roll axle and, thus, the whole roll can be bent in the desired way. - Owing to the embodiments described above of the bending mechanism of the
roll 10, the bearing arrangements can be eliminated in the roll completely from under the paper web, in which case the heat arising from the bearings does not cause a marking in the paper web. The bearings can be fitted exclusively in the end areas in the roll, in which case their lubrication and cooling can be arranged easily. Further, it is significant from the point of view of the invention that, owing to its bending mechanism, theroll 10 retains its curved form even if it had been removed from the machine. By means of the novel construction, it is possible to use aroll mantle 11 consisting of one part on the roll. Further, if constructions of different bend curve forms are desired, the mantle can be made of a composite material, in which connection, when the composite mantle is being manufactured, its rigidity can be varied readily by just changing the fibre angle. In this way, constructions with different rigidities in different locations of the roll can be obtained, whereby the bending curve of the roll can be shaped as desired. Moreover, in respect of its resistance to fatigue, composite is an excellent material. - Above, the invention has been described by way of example with reference to the figures in the accompanying drawing. The invention is, however, not confined exclusively to the exemplifying embodiments illustrated in the figures, but different embodiments of the invention may show variation within the scope of the inventive idea defined in the accompanying patent claims.
Claims (11)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI960546U | 1996-11-04 | ||
FI960546U FI2788U1 (en) | 1996-11-04 | 1996-11-04 | Removal roller, width stretch roller or equivalent for web material |
FIU960546 | 1996-11-04 | ||
PCT/FI1997/000663 WO1998019949A1 (en) | 1996-11-04 | 1997-10-30 | Take-out leading roll, spreader roll, or equivalent for a web-like material |
Publications (2)
Publication Number | Publication Date |
---|---|
US20010002381A1 true US20010002381A1 (en) | 2001-05-31 |
US6409643B2 US6409643B2 (en) | 2002-06-25 |
Family
ID=8545320
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/297,491 Expired - Fee Related US6409643B2 (en) | 1996-11-04 | 1997-10-30 | Take-out leading roll, spreader roll, or equivalent for a web-like material |
Country Status (7)
Country | Link |
---|---|
US (1) | US6409643B2 (en) |
EP (1) | EP0937005B1 (en) |
AT (1) | ATE222211T1 (en) |
AU (1) | AU4869497A (en) |
DE (1) | DE69714757T2 (en) |
FI (1) | FI2788U1 (en) |
WO (1) | WO1998019949A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2006005792A1 (en) * | 2004-07-13 | 2006-01-19 | Pr Rolls Oy | Bendable cylinder |
US20120149541A1 (en) * | 2010-12-10 | 2012-06-14 | Moschel Charles C | Bowed Industrial Roll With High Strength Bearing For End Spool |
WO2023080469A1 (en) * | 2021-11-03 | 2023-05-11 | 주식회사 엘지에너지솔루션 | Roller for supporting materials |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
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US6330984B1 (en) | 1999-12-30 | 2001-12-18 | The Goodyear Tire & Rubber Company | Method and apparatus for storing strip material |
DE20309301U1 (en) * | 2003-06-13 | 2003-08-28 | Stowe Woodward Ag | Spreader roll |
DE102006021609B4 (en) * | 2006-04-13 | 2008-01-31 | Robec Walzen Gmbh | Roller, in particular spreader roller for use in the production of material webs, in particular paper or board webs |
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CA766843A (en) | 1967-09-12 | Mount Hope Machinery Company Limited | Expander roll | |
AT311167B (en) * | 1970-07-08 | 1973-11-12 | Joseph Eck & Soehne Kg | Kink roll, especially for paper calenders |
DE2042001A1 (en) | 1970-08-25 | 1972-04-27 | Kleinewefers Ind Co Gmbh | Guide roll on calenders |
DE2139159C3 (en) | 1971-08-05 | 1974-08-15 | Jagenberg-Werke Ag, 4000 Duesseldorf | Device for spreading webs of material, in particular webs of paper |
GB1503150A (en) * | 1974-09-13 | 1978-03-08 | Hotchkiss Ltd J | Bearing assembly |
CH612478A5 (en) | 1976-04-30 | 1979-07-31 | Armand Demiere | |
DD133782A1 (en) | 1978-01-02 | 1979-01-24 | Joachim Apitz | ROLLING TOOL FOR ROLLERS ON ROTARY PRESSURE MACHINES AND THE SAME |
DE2837913C2 (en) * | 1978-08-31 | 1982-10-21 | ER-WE-PA Maschinenfabrik und Eisengießerei GmbH, 4006 Erkrath | Roller with controllable deflection, in particular for machines for producing and processing webs made of paper or plastic |
FI811720A0 (en) * | 1981-06-03 | 1981-06-03 | Waertsilae Oy Ab | VALSKONSTRUKTION |
FI72766C (en) * | 1986-02-13 | 1987-07-10 | Valmet Oy | Spreading roll or equivalent for the tissue of a paper machine and method for making it. |
US4692971A (en) | 1986-10-30 | 1987-09-15 | Spencer-Johnson Company | Tension compensating web expander roller |
US5061533A (en) | 1988-10-11 | 1991-10-29 | Mitsubishi Rayon Company Ltd. | Roll formed of carbon fiber composite material |
-
1996
- 1996-11-04 FI FI960546U patent/FI2788U1/en active
-
1997
- 1997-10-30 EP EP97911256A patent/EP0937005B1/en not_active Expired - Lifetime
- 1997-10-30 DE DE69714757T patent/DE69714757T2/en not_active Expired - Lifetime
- 1997-10-30 WO PCT/FI1997/000663 patent/WO1998019949A1/en active IP Right Grant
- 1997-10-30 US US09/297,491 patent/US6409643B2/en not_active Expired - Fee Related
- 1997-10-30 AT AT97911256T patent/ATE222211T1/en active
- 1997-10-30 AU AU48694/97A patent/AU4869497A/en not_active Abandoned
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006005792A1 (en) * | 2004-07-13 | 2006-01-19 | Pr Rolls Oy | Bendable cylinder |
US20070293381A1 (en) * | 2004-07-13 | 2007-12-20 | Pasi Uusitalo | Bendable Cylinder |
US20120149541A1 (en) * | 2010-12-10 | 2012-06-14 | Moschel Charles C | Bowed Industrial Roll With High Strength Bearing For End Spool |
WO2023080469A1 (en) * | 2021-11-03 | 2023-05-11 | 주식회사 엘지에너지솔루션 | Roller for supporting materials |
Also Published As
Publication number | Publication date |
---|---|
DE69714757T2 (en) | 2003-04-03 |
FI2788U1 (en) | 1997-03-10 |
ATE222211T1 (en) | 2002-08-15 |
EP0937005B1 (en) | 2002-08-14 |
DE69714757D1 (en) | 2002-09-19 |
EP0937005A1 (en) | 1999-08-25 |
WO1998019949A1 (en) | 1998-05-14 |
FIU960546U0 (en) | 1996-11-04 |
US6409643B2 (en) | 2002-06-25 |
AU4869497A (en) | 1998-05-29 |
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Owner name: VALMET CORPORATION, FINLAND Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:KARVONEN, LASSI;KOIVUKUNNAS, PEKKA;REEL/FRAME:010066/0556;SIGNING DATES FROM 19990504 TO 19990521 |
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Owner name: METSO PAPER, INC., FINLAND Free format text: CHANGE OF NAME;ASSIGNOR:VALMET CORPORATION;REEL/FRAME:012466/0973 Effective date: 20010101 Owner name: VALMET-RAUMA CORPORATION, FINLAND Free format text: MERGER;ASSIGNOR:VALMET OYJ;REEL/FRAME:012515/0358 Effective date: 19990701 |
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Owner name: VALMET TECHNOLOGIES, INC., FINLAND Free format text: CHANGE OF NAME;ASSIGNOR:METSO PAPER, INC.;REEL/FRAME:032551/0426 Effective date: 20131212 |
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