US3648342A - Movable combination of rolls - Google Patents

Movable combination of rolls Download PDF

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Publication number
US3648342A
US3648342A US12355A US3648342DA US3648342A US 3648342 A US3648342 A US 3648342A US 12355 A US12355 A US 12355A US 3648342D A US3648342D A US 3648342DA US 3648342 A US3648342 A US 3648342A
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United States
Prior art keywords
rolls
roll
loading
bearing units
bearing
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.)
Expired - Lifetime
Application number
US12355A
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English (en)
Inventor
Gerhard Walter Dorfel
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.)
Lenox Machine Co Inc
Original Assignee
Ahlstrom Corp
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Publication date
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Publication of US3648342A publication Critical patent/US3648342A/en
Assigned to LENOX MACHINE COMPANY, INC. reassignment LENOX MACHINE COMPANY, INC. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: A. AHLSTROM OSAKEYHITO
Assigned to LENOX MACHINE COMPANY, INC., A MA CORP. reassignment LENOX MACHINE COMPANY, INC., A MA CORP. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: A. AHLSTROM OSAKEYHTIO
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/003—Regulation of tension or speed; Braking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/02—Winding-up or coiling
    • B21C47/04—Winding-up or coiling on or in reels or drums, without using a moving guide
    • B21C47/06—Winding-up or coiling on or in reels or drums, without using a moving guide with loaded rollers, bolts, or equivalent means holding the material on the reel or drum
    • 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
    • B65H2404/42—Arrangement of pairs of drums
    • B65H2404/422—Nip arrangement, i.e. parallel drums in pressure contact to each other

Definitions

  • ABSTRACT [22] Filed:. Feb. 18, 1970
  • a beam provides a support for a series of rolls journaled side by side between bearing brackets.
  • the bearing brackets are [21] Appl' 112555 forked and movable vertically in relation to the beam.
  • references Cited deslred- The combination of rolls may be used as a loading roll for a UNITED STATES PATENTS roll of a material web which is to be wound up, for the purpose 3,301,498 1/1967 Greding ..242/66 of achieving uniform lineal pressure over the entire width of 3,308,519 3/1967 Westgate the roll.
  • the combination may also be utilized as a support roll for a moving web, wire or felt to equalize diflierences in tension oc- FOREIGN PATENTS OR APPLICATIONS curing in the direction across the wire, felt or material web.
  • This invention relates generally to a movable system of rolls joumalled at a distance from each other on a support, and particularly to loading and tension equalizing systems for material webs, wires and felts.
  • the improved combination of rolls according to the invention comprises bearings at the ends of the rolls by which the rolls are joumalled between the opposite furcations of the adjacent bearing brackets and a smaller diameter intennediate roll joumalled between the adjacent rolls in the prong of each bearing bracket.
  • the movable combination of rolls according to the invention can be applied immediately against the web without interposed equalizing rolls, e.g., for the purpose of:
  • a movable combination of rolls according to the invention can be applied to equalize the differences in tension occurring in the web which result from unavoidable differences in the elastic properties of the web. At the same time partial overstressing of the web is prevented.
  • a combination of rolls according to the invention may also advantageously be used for equalizing the tension in endless moving screen or membrane webs, e.g.,. as tension roller for a wire or felt in a paper machine.
  • FIG. 1 presents a transversal view of a combination of rolls according to the invention
  • FIG. 2 is the section along the line 8-8 in FIG. I and shows a cross-sectional vertical partial view of an advantageous embodiment of the invention
  • FIG. 3 is taken along the line A-A of FIG. 2,
  • FIG. 4 is the section along the line C--C in FIG. 2,
  • FIG. 5 presents a similar partial view as that in FIG. 2 of another alternative embodiment
  • FIG. 6 shows a vertical axially sectioned partial view of an additional embodiment according to the invention
  • FIG. 7 shows the same device as FIG. 6 but from another point and only partly in section
  • FIGS. 8 and 9 finally show two different embodiments from the side.
  • the combination of rolls shown in FIG. 1 comprises a highly rigid horizontal beam or girder I, under which there are several comparatively short rolls 2, placed axially and at equal distances from each other.
  • Adjacent rolls 2 have been journalled in-the bearing brackets 4 on both sides, that is each roll is carried at both ends in one bearing bracket each.
  • intermediate rolls 3 of smaller diameter, which have been joumalled in the prongs of the bearing brackets 4 so that the rolls 2 and 3 form a substantially continuous point of contact, which is a straight line when the combination is uniformly supported, as in FIG. 1.
  • the prongs of brackets 4 form a socket for the rolls.
  • FIGS. 2, 3 and 4 it has been shown in greater detail how the rolls 2 and 3 are carried in the bearing brackets 4 and how these in their turn have been fitted to connect'with the girder I. It is seen that the rolls have been fitted axially on both sides of the bearing bracket 4 in pivot bearings 14, which have been mounted on cylindrical projections on either side of the bearing bracket 4. Therefore the rolls 2 are freely rotatable and angularly turnable at their ends so that their imaginary axes can freely assume various angular positions with reference to each other. Between the prongs of the bearing bracket 4 a freely rotatable intermediate roll 3 has been joumalled, which is smaller in diameter than the rolls 2 and the axial length of which is only little less than the distance between the rolls 2. The rolls 2 and 3 thus form a substantially continuous contact point, but which is changeable of its shape, with the web or equivalent (not shown) which is placed against them.
  • Both edges of the mantle of the rolls 2 have furthermore been rounded with the radius R (FIG. 3) so that no sharp transition is formed between the rolls 2 and 3 which might cause marginal stresses, even if the imaginary axis of the roll 2 is in inclined position with reference to the axis of the roll 3.
  • pressure bellows 7, which have been connected to a common, closed pressure system consisting of the pipe 8.
  • the bellows 7, 9 and pipe 8 have been filled with some appropriate pressure medium, such as air or some conventional hydraulic fluid.
  • Both outermost pressure bellows 9 have a functional area smaller by one half than the intermediate pressure bellows 7, because the first-mentioned bellows only act upon one roll 2 each. Accordingly, the relation between pressure and force is equal in all bellows 7, 9.
  • the line 8 is moreover connected to a pressure gauge 13, by means of which the force acting on the combination of rolls is measurable.
  • FIG. 5 another embodiment of the bearing bracket involving lesser freedom of travel has been presented.
  • the bearing bracket is a lever arm 4' which has been pivoted to be tumable about the axis 15 on one outer side of the girder 1.
  • the rolls 2 and 3 have been joumalled in the manner described above in one end of the lever arm 4', the travel of which has been restricted by means of a stop 6 fixed immediately to the girder.
  • a pressure bellows 7 Between the girder 1 and the said end of the lever arm 4' there has also been fitted a pressure bellows 7, by the aid of which the angular travel of the lever arm 4 is controllable.
  • the position of the lever arm 4' is indicated by means of a measuring instrument 12, which is in contact with the other, shorter arm of the lever 4'.
  • the pressure in the bellows 7 may be either increased or decreased in order to change the position of the lever arm 4.
  • the rolls 2 and 3 may also be provided with a resilient coating if desired.
  • FIG. 6 differs from that shown in FIG. 3 in that the rolls 2 have been connected with each other by means of a shaft 19 of adjustable length, which has at both ends universal joints 17, which connect this shaft 19 to the shafts of both rolls 2, which have been carried in swivel bearings in the prongs of the bearing bracket 4.
  • the intermediate roll 3 carried between the prongs of the bearing bracket 4 below the shaft 19 is even now freely rotatable, whereas the rolls 2 rotate at identical speed and are advantageously positively driven, as can be seen from FIG. 7.
  • the rightmost roll 2 has been connected to an external power transmission comprising pulleys 15 driven by a motor 18, the lower of these pulleys being joumalled in the girder 1 and driving a shaft provided with universal joints 17 at both ends and the inner end of which is connected with the said roll 2.
  • the said shaft passes through a bore 20 in the hearing bracket 4.
  • the intermediate rolls need not necessarily be freely tumable, instead of which they may be made positively driven and may be driven at the same speed as the rolls 2. It is also possible to make the rolls 2 freely rotatable and the intermediate rolls positively driven, if desired.
  • a combination of rolls according to the invention has been arranged to constitute the loading roll 16 for a roll 11 placed upon two supporting rolls.
  • the roll 11 will have somewhat greater diameter at the points where the web is thicker than at its thinner points.
  • a nonnal roll used in conventional manner as a loading roll would then'only rest on those points where the diameter is largest, and the roll would obviously be nonuniform in hardness. This is prevented by means of a combination of rolls according to the invention and uniform lineal pressure is achieved over the entire width of the roll 11.
  • pressure equalization is accomplished in the pressure bellows 7, 9, whereby pressure medium is pressed from the bellows located opposite areas of large diameter into those which coincide with areas presenting a smaller diameter.
  • the differences in diameter can be indicated by means of the measuring instrument 12 (FIG. 5), and the lineal pressure can be indicated by means of the pressure gauge 13 (FIG. 1).
  • the desired lineal pressure may be adjusted and controlled by relieving or loading the girder 1.
  • the girder 1 has been immovably arranged in horizontal position and in a vertical plane, and the material web 10 is passed over the combination of rolls 20 with small lapping angle, symmetrically with reference to the contact point between the rolls 2 and 3 and the web.
  • This arrangement eliminates the differences in tension in the web 10 by means of the pressure equalization between the bellows 7, 9, in that the less elastic parts of the web will have to travel a shorter distance for the reason that the rolls opposite to such portions descend to a lever lower than that of the other rolls.
  • the pressure prevailing in the bellows 7, 9 and in the line 8 is directly proportional to the tension of the web and it may be conducted over a pressure transducer 13, as the true pressure value, to eflect after-adjustment of the web tension.
  • the rolls 3 are advantageously made as large as possible in diameter, compared to the rolls 2, and the mass of the rolls 2 and 3 is made as small as possible.
  • the embodiment shown in FIG. 9 may also advantageously be applied to produce tension in the wire of felt of a paper machine.
  • the closed pressure system may be formed in simple manner of tubing of sufficiently large diameter and which is closed at its ends, which is fitted axially between each bearing bracket and the girder.
  • a combination of rolls according to the invention may equally be used in multiple calender machines, in presses, in bumishing appratus and equivalent, in which the combination of rolls acts indirectly upon the web by mediation on one or several interposed working rolls.
  • the control elements e.g., the pressure pipes, may also be made individually controllable, whereby the point of contact constituted by the rolls may be adjusted to have desired shape, independent of the load.
  • a roll assembly providing a substantially uninterrupted line of work contact comprising a transverse beam, a plurality of bearing units mounted on the beam, a pressure control member mounted upon each of said bearing units, means for connecting said pressure control members to the bearing units, a plurality of first rolls pivotally mounted between the bearing units, joumalled at a predetermined distance one from the other to the bearing units, said rolls being vertically displaceable in relation to the beam, a plurality of second intermediate rolls of smaller diameter pivotally mounted on said bearing units between adjacent pairs of said first rolls, the axis of said second rolls being offset from the axis of said first rolls whereby a single substantially continuous line of contact with a workpiece is established across the faces of said first and said second rolls.
  • an improved loading mechanism comprismg:
  • a traverse beam extending across the frame above the roll and vertically movable in relation thereto;
  • communicating fluid pressure means disposed between the beam and each bearing bracket for the purpose of achieving uniform lineal pressure over the entire width of the

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)
US12355A 1969-04-29 1970-02-18 Movable combination of rolls Expired - Lifetime US3648342A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI691258A FI45589C (sv) 1969-04-29 1969-04-29 Rörlig valskombination

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US3648342A true US3648342A (en) 1972-03-14

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CA (1) CA922333A (sv)
FI (1) FI45589C (sv)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3786975A (en) * 1971-08-05 1974-01-22 Jagenberg Werke Ag Apparatus for broad-drawing sheet materials
FR2369009A1 (fr) * 1976-10-29 1978-05-26 Oce Van Der Grinten Nv Rouleau presseur d'appareil pour l'application d'une cou
US5320299A (en) * 1992-01-27 1994-06-14 Beloit Technologies, Inc. Articulated rider roll system and method
US5379961A (en) * 1991-10-19 1995-01-10 Jagenberg Aktiengesellschaft Winding machine for winding webs of material, particularly paper or cardboard webs
US5785271A (en) * 1996-06-10 1998-07-28 Valmet Corporation Method and apparatus for regulating winding of a web
US5806783A (en) * 1996-06-10 1998-09-15 Valmet Corp. Method and device for winding a material web
US6076762A (en) * 1995-05-06 2000-06-20 Beloit Technologies, Inc. Rider roller assembly
US6182919B1 (en) * 1998-02-11 2001-02-06 Kampf Gmbh & Co. Maschinenfabrik Contact roller system of a winding machine
DE10131364A1 (de) * 2001-06-28 2003-01-16 Wt Wickeltechnik Gmbh Kontaktwalzensystem einer Wickelmaschine für dünnes Bandmaterial
US20040050224A1 (en) * 1999-10-21 2004-03-18 Fuji Photo Film Co., Ltd. Cutting apparatus and method for producing beltlike material
US6723032B2 (en) * 1999-03-22 2004-04-20 Metso Paper, Inc. Segmented roll
US20040108405A1 (en) * 2002-10-31 2004-06-10 Paul Lindner Take-up device for web-shaped materials, especially plastic films
US20050087648A1 (en) * 2002-01-18 2005-04-28 Uwe Fischer Roll system, particularly a contact roll system of a winding machine
EP3476785A1 (en) * 2017-10-27 2019-05-01 OCE Holding B.V. Web tensioning mechanism

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE822592C (de) * 1950-03-28 1951-11-26 Paul Renz Fa Gliederwalze fuer eine Bandmesserspaltmaschine
US3185402A (en) * 1961-04-19 1965-05-25 Jagenberg Werke Ag Safety means for paper winding machine
US3301498A (en) * 1964-12-21 1967-01-31 Dominion Eng Works Ltd Manual latch for coreshaft box
US3308519A (en) * 1964-04-23 1967-03-14 Mount Hope Machinery Ltd Sectional curved roll with reinforcing rings
US3512727A (en) * 1967-03-14 1970-05-19 Valmet Oy Pressure roll beam in a longitudinal sheet cutter

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE822592C (de) * 1950-03-28 1951-11-26 Paul Renz Fa Gliederwalze fuer eine Bandmesserspaltmaschine
US3185402A (en) * 1961-04-19 1965-05-25 Jagenberg Werke Ag Safety means for paper winding machine
US3308519A (en) * 1964-04-23 1967-03-14 Mount Hope Machinery Ltd Sectional curved roll with reinforcing rings
US3301498A (en) * 1964-12-21 1967-01-31 Dominion Eng Works Ltd Manual latch for coreshaft box
US3512727A (en) * 1967-03-14 1970-05-19 Valmet Oy Pressure roll beam in a longitudinal sheet cutter

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3786975A (en) * 1971-08-05 1974-01-22 Jagenberg Werke Ag Apparatus for broad-drawing sheet materials
FR2369009A1 (fr) * 1976-10-29 1978-05-26 Oce Van Der Grinten Nv Rouleau presseur d'appareil pour l'application d'une cou
US4135475A (en) * 1976-10-29 1979-01-23 Oce-Van Der Grinten N.V. Apparatus for applying liquid to sheetlike material
US5379961A (en) * 1991-10-19 1995-01-10 Jagenberg Aktiengesellschaft Winding machine for winding webs of material, particularly paper or cardboard webs
US5320299A (en) * 1992-01-27 1994-06-14 Beloit Technologies, Inc. Articulated rider roll system and method
US6076762A (en) * 1995-05-06 2000-06-20 Beloit Technologies, Inc. Rider roller assembly
US5785271A (en) * 1996-06-10 1998-07-28 Valmet Corporation Method and apparatus for regulating winding of a web
US5806783A (en) * 1996-06-10 1998-09-15 Valmet Corp. Method and device for winding a material web
US6182919B1 (en) * 1998-02-11 2001-02-06 Kampf Gmbh & Co. Maschinenfabrik Contact roller system of a winding machine
US6723032B2 (en) * 1999-03-22 2004-04-20 Metso Paper, Inc. Segmented roll
US20040050224A1 (en) * 1999-10-21 2004-03-18 Fuji Photo Film Co., Ltd. Cutting apparatus and method for producing beltlike material
DE10131364A1 (de) * 2001-06-28 2003-01-16 Wt Wickeltechnik Gmbh Kontaktwalzensystem einer Wickelmaschine für dünnes Bandmaterial
US20050087648A1 (en) * 2002-01-18 2005-04-28 Uwe Fischer Roll system, particularly a contact roll system of a winding machine
US20040108405A1 (en) * 2002-10-31 2004-06-10 Paul Lindner Take-up device for web-shaped materials, especially plastic films
US7028944B2 (en) * 2002-10-31 2006-04-18 Brückner Maschinenbau GmbH Take-up device for web-shaped materials, especially plastic films
EP3476785A1 (en) * 2017-10-27 2019-05-01 OCE Holding B.V. Web tensioning mechanism

Also Published As

Publication number Publication date
FI45589B (sv) 1972-04-04
CA922333A (en) 1973-03-06
FI45589C (sv) 1972-07-10

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Legal Events

Date Code Title Description
AS Assignment

Owner name: LENOX MACHINE COMPANY, INC., LENOX, MA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:A. AHLSTROM OSAKEYHITO;REEL/FRAME:004180/0678

Effective date: 19830318

AS Assignment

Owner name: LENOX MACHINE COMPANY, INC., A MA CORP.

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:A. AHLSTROM OSAKEYHTIO;REEL/FRAME:004242/0474

Effective date: 19840312