US3225418A - Variable-camber cylinder - Google Patents

Variable-camber cylinder Download PDF

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Publication number
US3225418A
US3225418A US356440A US35644064A US3225418A US 3225418 A US3225418 A US 3225418A US 356440 A US356440 A US 356440A US 35644064 A US35644064 A US 35644064A US 3225418 A US3225418 A US 3225418A
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US
United States
Prior art keywords
shaft
cylinder
rings
bearings
bearing elements
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Expired - Lifetime
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US356440A
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English (en)
Inventor
Fara Pierre Jacques
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D C M NANTERRE
Dcm Nanterre
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D C M NANTERRE
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Publication of US3225418A publication Critical patent/US3225418A/en
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Classifications

    • 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
    • F16C13/02—Bearings
    • F16C13/022—Bearings supporting a hollow roll mantle rotating with respect to a yoke or axle
    • F16C13/024—Bearings supporting a hollow roll mantle rotating with respect to a yoke or axle adjustable for positioning, e.g. radial movable bearings for controlling the deflection along the length of the roll mantle
    • F16C13/026—Bearings supporting a hollow roll mantle rotating with respect to a yoke or axle adjustable for positioning, e.g. radial movable bearings for controlling the deflection along the length of the roll mantle by fluid pressure
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C3/00—Stretching, tentering or spreading textile fabrics; Producing elasticity in textile fabrics
    • D06C3/06—Stretching, tentering or spreading textile fabrics; Producing elasticity in textile fabrics by rotary disc, roller, or like apparatus
    • D06C3/067—Stretching, tentering or spreading textile fabrics; Producing elasticity in textile fabrics by rotary disc, roller, or like apparatus by curved rollers
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/36—Guiding mechanisms
    • 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
    • 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
    • F16C2340/00—Apparatus for treating textiles

Definitions

  • the present 'invention relates to a variable-camber cylinder of the type comprising a bushing mounted on anti-friction bearings which rest on a shaft and means for imparting to said shaft curvatures which are transmitted to the bushing by the antifriction bearings.
  • Cylinders of this type are already known which are put to use by giving them a certain camber and which are thus capable, for example, of either widening or narrowing a continuous strip in a machine designed for the purpose of processing products which are fabricated in the form of strips or alternatively of spacing apart juxtaposed strips which have just been cut out longitudinally from a single band.
  • Cylinders of the same type are also employed in machines in which any .axially extending line on the periphery of the cylinder must be maintained perfectly straight during the processing operation, said cylinder being accordingly prestressed when in the inoperative state by bending the cylinder shaft so as to produce a longitudinal curvature which is cancelled during operation as a result of the force which is applied on the cylinder.
  • the object of the present invention is to overcome the disadvantages noted Iabove and is accordingly directed to a cylinder of the type referred to above which is characterized in that the means for imparting to the cylinder shaft the curvatures which are transmitted to the bushing by the lantifriction bearings consist of rings having spherical faces which are alternately male and female and which are alternately fitted with play and without play around the cylinder shaft, provision being made for a device which is operated from the exterior and which can displace off-center the rings which are fitted with play around said cylinder shaft.
  • the device for displacing off-center the rings which are fitted with play over the cylinder shaft -consists of a liner tube which extends within the interior of the shaft which is hollow, said liner tube being expandable for the purpose of moving ribs which are placed within holes pierced through the hollow shaft, said ribs being interposed between the liner tube and the rings which are tted with play.
  • the liner tube is hollow and filled with water and the expansion thereof is produced by axial compression exerted by a screw which moves axially with respect to one end of the cylinder shaft.
  • the rings which lare fitted with play are male rings and the female rings are made integral with the antifriction bearings.
  • the female rings can accordingly be in the form of rings which are secured on opposite sides of each antifriction bearing, except of Course at the ends where provision is made for a single ring.
  • FIGURE l is a central longitudinal sectional View of a cylinder constructed in accordance with the invention.
  • FIGURE 2a is a sectional View taken along the line II-II of FIGURE l showing the position of the parts in the nonexpanded condition of the liner.
  • FIGURE 2b is a View similar to FIGURE 2a, showing the condition of the parts in the expanded condition of the mer.
  • the cylinder essentially consists of a hollow shaft 1 -on which is mounted a series of antifriction bearings 2, a series of female rings 3 and a series of male rings 4.
  • each antifriction bearing 2 is engaged on its opposite axial sides by two female rings 3 which are fitted without play over the hollow cylinder shaft.
  • the male rings 4 which are positioned between the female rings are mounted on the hollow shaft with a certain play.
  • the circle 5 which is shown in broken lines that the useful faces of the different rings are portions of spheres which are centered on the axis of the cylinder.
  • One of the end antifriction bearings is engaged at its outer axial side by a nut o which is screwed on the cylinder shaft, there being in turn screwed in said nut a locking end-piece 7 which is integral with the shaft-journal 8, said shaft-journal being engaged in the journal-bearing 9.
  • the shaft-journal 11 is fitted with a ring 12 to which is secured a lever 13 which can be operated either manually or automatically so as to adjust the angular keying of the cylinder by rotational displacement. It will be apparent that this angular keying is important if the cylinder is employed with a certain curvature since said curvature must be located in a welldetermined plane.
  • journal-bearings 9 and 9' have spherical bearing surfaces which thus permits the variable camber of the cylinder in .a manner which is well known.
  • a tube 16 is supported on the antifriction bearings and also on two end-rings 14 and 15, there being fitted over said tube a rubberized sheath 17, the combined assembly thus forming the cylinder bushing which is terminated at its ends by locking rings 18 through which can pass a series of clamping screws 19 which cooperate with the tube 16 and with the end rings 14 and 15.
  • the cylinder shaft is provided with holes 20 respectively aligned with the rings 4. Ribs 21 extend through the holes 20 and the thickness of the ribs is slightly greater than the thickness of the shaft. The ribs 21 are arranged in an axial line along the shaft 1.
  • An expandable cylindrical liner tube 22 which can be made for example of rubber, extends within the interior of the cylinder shaft and is closed at the ends thereof by being gripped between an inner conical ring 23 and an outer conical ring 24, said rings being drawn towards each other by a nut 25 threaded onto an extension of ring 23.
  • the shaft-journal 11 is hollow and is adapted to accommodate a rod 26 which is provided with an external thread so as to cooperate with an internal thread of the shaft-journal 11 and which terminates at the outer extremity with a head 27 so as to permit said rod to be turned either manually or automatically. It will be noticed that the end of the rod 26 is adapted to act against the outer end of the adjacent sealing means 23, 24 and 25 for effecting axial movement thereof.
  • the conical rings 23 and 24 at the rightward end of the shaft are slidable axially within the shaft 1 so that when the rod 26 is moved leftwardly, said rings 23 and 24 will move in unison with respect to the shaft toward the corresponding rings at the leftward end of the shaft.
  • the rings 4 move radially outwardly, it is necessary to ensure that the distance between the portions of the two rings 3 closest to said ribs increases; conversely, this distance can decrease on the opposite radial side of the shaft. In order to achieve this result, the rings 3 must therefore carry out movements of rotation about their central point. Since the said rings 3 are fitted without play over the cylinder shaft, the aforesaid movements of rotation are accompanied by a bending movement of the cylinder shaft, the amplitude of which depends on the movement of the rings 4 and therefore on the intensity of the action exerted on the head 27.
  • controlling actions produced by means of the lever 13 or the head 27 could be other than manual and could even be made automatic in dependence on a factor such as the deformation to which the material being processed is to be subjected or on the weight of said material.
  • a variable-camber cylinder comprising:
  • a variable-camber cylinder in which at least three axially spaced-apart bearings are mounted on said shaft and cooperating pairs of relatively radially movable bearing elements are provided between each pair of adjacent bearings, said shaft is hollow and said means for moving said radially movable bearing elements comprises an expandable liner tube which extends longitudinally within the interior of said shaft, ribs engaging said liner tube and projecting through openings in said elongated shaft into contact with said radially movable bearing elements whereby when said liner tube is expanded, said ribs are moved radially outwardly to effect radial outward movement of said radially movable bearing elements.
  • variable-camber cylinder in which said liner tube is hollow and is iilled with a liquid, and including axially movable means mounted on one end of said shaft and engageable with one end of said liner tube for effecting expansion thereof.
  • a variable-camber cylinder in which the bearing elements between each pair of adjacent bearings consists of two female rings Whose partially spherical faces have a common axis of curvature and a male ring interposed between said female rings and having its opposite axial end faces curved about the same axis as the spherical faces of said female rings.
  • a variable-camber cylinder in which the female rings are xed against radial movement with respect to said shaft and said male ring is mounted for radial movement with respect to said shaft.
  • variable-camber cylinder as defined in claim 5, in which the female rings are secured to opposite sides of each antifriction bearing and including end bearings on the opposite axial ends of said shaft, said end bearings each having a single female ring associated therewith.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Textile Engineering (AREA)
  • Support Of The Bearing (AREA)
  • Soil Working Implements (AREA)
  • Rolls And Other Rotary Bodies (AREA)
US356440A 1963-04-08 1964-04-01 Variable-camber cylinder Expired - Lifetime US3225418A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR930763A FR1365334A (fr) 1963-04-08 1963-04-08 Cylindre à courbure variable

Publications (1)

Publication Number Publication Date
US3225418A true US3225418A (en) 1965-12-28

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ID=8801136

Family Applications (1)

Application Number Title Priority Date Filing Date
US356440A Expired - Lifetime US3225418A (en) 1963-04-08 1964-04-01 Variable-camber cylinder

Country Status (4)

Country Link
US (1) US3225418A (de)
DE (1) DE1450018A1 (de)
FR (1) FR1365334A (de)
GB (1) GB1021308A (de)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3362055A (en) * 1965-12-06 1968-01-09 Dominion Eng Works Ltd Hydraulic anti-deflection roll
US3450039A (en) * 1967-05-18 1969-06-17 Ashbrook Clifford L Pressure vessel
US3457617A (en) * 1966-01-19 1969-07-29 Bwg Bergwetk Und Walzwerk Masc Working roll for a roller mill
US3665572A (en) * 1970-10-16 1972-05-30 Mount Hope Machinery Ltd Roll with bearing support means
US3728767A (en) * 1970-12-28 1973-04-24 Yamauchi Rubber Ind Co Ltd Apparatus for adjusting the altitude of a chord of an expanding roll
US3747445A (en) * 1971-05-06 1973-07-24 C Piotrowski Expansible work holder
US3854646A (en) * 1973-07-10 1974-12-17 Ahlstroem Dev Gmbh Pressure-balanced wide web guide roller
US3869774A (en) * 1974-01-28 1975-03-11 Mount Hope Machine Company Inc Fluid bearing table roll
FR2314295A1 (fr) * 1975-06-13 1977-01-07 Itog Ltd Cylindre pour le pressage homogene de materiaux plats
US4305191A (en) * 1978-05-31 1981-12-15 Shozo Enomoto Squeeze roll adapted to adjust widthwise distribution of pressure on cloth being treated
US4455903A (en) * 1982-11-15 1984-06-26 Preston Engravers, Inc. Adjustable anvil roll
US4593864A (en) * 1984-01-25 1986-06-10 årdal og Sunndal Verk a.s. Differential mandrel for sheet-slitting machine recoiler
US4598448A (en) * 1983-02-26 1986-07-08 J. M. Voith Gmbh Press roller with adjustable bowing means
US4612692A (en) * 1980-06-19 1986-09-23 Componenti Grafici S.R.L. Pressure cylinder with variable configuration axis
US4913051A (en) * 1987-04-15 1990-04-03 Componenti Grafici S.R.L. Roll for use in rotary printing presses and the like
US20060183613A1 (en) * 2003-06-13 2006-08-17 Stowe Woodward Ag Spreader roll

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2463750A1 (fr) * 1979-08-21 1981-02-27 Saint Gobain Gaines pour tiges supportant des feuilles de verre dans les machines de bombage et de trempe
EP0026467A1 (de) * 1979-09-28 1981-04-08 Walter Rudolf Schenk Breitstreckwalze

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1314342A (en) * 1919-08-26 A corpora
US2648122A (en) * 1950-08-04 1953-08-11 Beloit Iron Works Antideflection roll
US2898662A (en) * 1957-05-17 1959-08-11 Mount Hope Machinery Ltd Expanding and contracting rolls
GB893426A (en) * 1961-01-26 1962-04-11 Karl Marx Stadt Maschf Improvements in or relating to pressure rollers for calenders, foulards or the like machines
US3070872A (en) * 1960-01-19 1963-01-01 Haas Friedrich Maschf Roller or bowl for providing a uniform pressure in the pressing of flat material, e. g., textile woven fabric runs
US3098284A (en) * 1961-08-22 1963-07-23 Beloit Iron Works Roll subject to deflection

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1314342A (en) * 1919-08-26 A corpora
US2648122A (en) * 1950-08-04 1953-08-11 Beloit Iron Works Antideflection roll
US2898662A (en) * 1957-05-17 1959-08-11 Mount Hope Machinery Ltd Expanding and contracting rolls
US3070872A (en) * 1960-01-19 1963-01-01 Haas Friedrich Maschf Roller or bowl for providing a uniform pressure in the pressing of flat material, e. g., textile woven fabric runs
GB893426A (en) * 1961-01-26 1962-04-11 Karl Marx Stadt Maschf Improvements in or relating to pressure rollers for calenders, foulards or the like machines
US3098284A (en) * 1961-08-22 1963-07-23 Beloit Iron Works Roll subject to deflection

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3362055A (en) * 1965-12-06 1968-01-09 Dominion Eng Works Ltd Hydraulic anti-deflection roll
US3457617A (en) * 1966-01-19 1969-07-29 Bwg Bergwetk Und Walzwerk Masc Working roll for a roller mill
US3450039A (en) * 1967-05-18 1969-06-17 Ashbrook Clifford L Pressure vessel
US3665572A (en) * 1970-10-16 1972-05-30 Mount Hope Machinery Ltd Roll with bearing support means
US3728767A (en) * 1970-12-28 1973-04-24 Yamauchi Rubber Ind Co Ltd Apparatus for adjusting the altitude of a chord of an expanding roll
US3747445A (en) * 1971-05-06 1973-07-24 C Piotrowski Expansible work holder
US3854646A (en) * 1973-07-10 1974-12-17 Ahlstroem Dev Gmbh Pressure-balanced wide web guide roller
US3869774A (en) * 1974-01-28 1975-03-11 Mount Hope Machine Company Inc Fluid bearing table roll
FR2314295A1 (fr) * 1975-06-13 1977-01-07 Itog Ltd Cylindre pour le pressage homogene de materiaux plats
US4305191A (en) * 1978-05-31 1981-12-15 Shozo Enomoto Squeeze roll adapted to adjust widthwise distribution of pressure on cloth being treated
US4612692A (en) * 1980-06-19 1986-09-23 Componenti Grafici S.R.L. Pressure cylinder with variable configuration axis
US4455903A (en) * 1982-11-15 1984-06-26 Preston Engravers, Inc. Adjustable anvil roll
US4598448A (en) * 1983-02-26 1986-07-08 J. M. Voith Gmbh Press roller with adjustable bowing means
US4593864A (en) * 1984-01-25 1986-06-10 årdal og Sunndal Verk a.s. Differential mandrel for sheet-slitting machine recoiler
US4913051A (en) * 1987-04-15 1990-04-03 Componenti Grafici S.R.L. Roll for use in rotary printing presses and the like
US20060183613A1 (en) * 2003-06-13 2006-08-17 Stowe Woodward Ag Spreader roll

Also Published As

Publication number Publication date
FR1365334A (fr) 1964-07-03
GB1021308A (en) 1966-03-02
DE1450018A1 (de) 1969-04-10

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