US3800381A - Covered roll for paper making - Google Patents

Covered roll for paper making Download PDF

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Publication number
US3800381A
US3800381A US00263859A US3800381DA US3800381A US 3800381 A US3800381 A US 3800381A US 00263859 A US00263859 A US 00263859A US 3800381D A US3800381D A US 3800381DA US 3800381 A US3800381 A US 3800381A
Authority
US
United States
Prior art keywords
roll
rolls
paper making
nip
rubber
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
US00263859A
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English (en)
Inventor
D Brafford
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.)
Beloit Corp
Original Assignee
Beloit Corp
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 Beloit Corp filed Critical Beloit Corp
Application granted granted Critical
Publication of US3800381A publication Critical patent/US3800381A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
    • B29C63/0017—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor characterised by the choice of the material
    • B29C63/0021—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor characterised by the choice of the material with coherent impregnated reinforcing layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
    • B29C63/02—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material
    • B29C63/04—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material by folding, winding, bending or the like
    • B29C63/12—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material by folding, winding, bending or the like by winding spirally
    • B29C63/14—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material by folding, winding, bending or the like by winding spirally around tubular articles
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F3/00—Press section of machines for making continuous webs of paper
    • D21F3/02—Wet presses
    • D21F3/08—Pressure rolls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/32—Wheels, pinions, pulleys, castors or rollers, Rims
    • B29L2031/324—Rollers or cylinders having an axial length of several times the diameter, e.g. embossing, pressing or printing

Definitions

  • ABSTRACT A roll and method of making the roll wherein the roll is adapted to operate at high speed and high nip pressures and has an outer cover formed of a wet lay process with a reinforcing mat of nonwoven needled polyester fibers wetted and impregnated, with a-material selected from the group of depolymerized natural rubber, low molecular light weight styrene butadiene, liquid urethane and liquid polybutadiene, at room temperature and is placed on the outer surface of the roll is a wet lay-up process.
  • the invention relates to improvements in rolls and particularly rolls of the type which are used in paper making machines that must be able to encounter high rates of speed and high nip loads for continuous operation.
  • the invention relates to an improved roll and method of making rolls for a paper making machine wherein the roll has a surface having a nonwoven fibrous mat of needledpolyester fibers wetted and placed on the surface of the roll by a lay-up process with the mat wetted and saturated with a liquid rubber.
  • Rubber covered rolls have been employed for many years in the paper industry. These have particularly been used extensively in the press section of paper making machines, often in the form of grooved rolls or suction rolls and also as plain rolls. These are usually used in a press defining relationship with a mating roll that has a hard outer surface such as a steel roll. Through the nip a wet paper web is carried by an endless felt and water is squeezed out of the web in the nip and into the felt. Often granite rock rolls or bone hard rubber coveredrolls will be mated with another hard cover roll such as formed of material such as disclosed in my patent 3 ,588,978. Such a combination is effective in'removing water because of the high unit pressures produced at the relatively narrow or sharp nip.
  • a still further object of the invention is to provide an improved roll which has a soft cover that can be made expediently and relatively inexpensively and which operates reliably so that it produces a uniform and superior grade of paper.
  • a further object of the invention is to provide an improved method of making soft covered rolls which enables making rolls of various diameters without special expensive equipment for diameter change.
  • a still further object of the invention is to provide an improved process for making a softer roll covering wherein the covering is capable of operating at high speeds and high nip pressures.
  • FIG. 1 is a perspective somewhat schematic view of a pair of rolls operating in a paper making machine with the upper roll constructed in accordance with the present invention.
  • FIG. 2 is a schematic view illustrating a process for making the roll.
  • a pair of rolls 11 and 15 form a nip N therebetween.
  • the upper roll 11 has a core 12 of iron or the like with a supporting shaft 10 and as will be appreciated, the roll 11 and the roll beneath it 15 will be mounted in suitable bearing supports equipped with a mechanism for applying a controlled nip pressure
  • the upper roll 11 has a soft outer surface 14 which is applied to the inner core 12 in a method that will be described.
  • the lower opposing roll 15 is formed of a hard material such as steel and is supported on a shaft 16. In some instances it may be desirable for uniform nip pressures that the lower roll 15 be a controlled deflection roll.
  • the hydraulic support may be in theform of a captive sealed body of liquid or in the form of an elongate axially extending piston set in a cylinder on the shaft with the piston supporting a sliding Kingsbury thrust type bearing shoe and a film of lubricating oil forming between the inner surface of the roll shell and the shoe.
  • the lower roll may be a conventional plain roll
  • the upper roll may be an antideflection roll with the core 12 being in the form of a roll shell and being carried by controlled deflection means such as above described.
  • FIG. 2 illustrates the application of the roll cover to the roll 11. It has been discovered that a softer roll covering can be applied using a wet lay process at substantial savings over the conventional casting process.
  • the roll cover 14 is comprised of a reinforcing fibrous mat, preferably of nonwoven needled polyester fibers.
  • the mat is impregnated with a type of liquid rubber preferably selected from the group of depolymerized natural rubber, low molecular weight styrene butadiene, liquid urethane or liquid polybutadiene.
  • the nonwoven reinforcing mat the material 19 is fed off a supply roll 17 over a guide roll 20 and down into an open container 23 of liquid rubber.
  • Guide rolls 21 and 22 feed the material through the liquid rubber to permit it to be wetted. It has been found that the liquid rubber referred to possesses a room temperature viscosity low enough to wet out the reinforcing mat.
  • the wetted reinforcing mat leaves the container 23, passes over roll 22a and is applied to the outer surface of the roll as shown. This may be done by driving the roll with a drive 25 at a relatively low speed so that the mat is built up in layers on the roll 11.
  • a smoothing machining will be performed to obtain a uniform smooth outer surface and a uniform diameter on the roll.
  • the build-up of the mat may be accomplished in various other forms such as by the laying on of individual wetted sheets on the outer surface or by laminating several sheets and then applying them to the outer surface of the roll, but the laying on process on individual wetted layers forms a strong monolithic i.e., nonporous soft cover.
  • This cover for the roll will stand higher machine speeds than conventional rubber or cast polyurethane covered rolls, and is readily capable of taking speeds at 4 6,000 feet per minute and nip loads at 600 PM which are being accomplished or approached in paper making machinery.
  • the cover applying process eliminates the needs for molds required in a conventional casting process.
  • the rolls of the present invention may be employed in a wide variety of uses or industries.
  • the roll presents a soft cover which can operate at high speeds and high loading conditions and what is important, it will offer substantial increases in the operating life for a roll covering which is important in the paper making industry where the delay for shutdown for the failure of any one part is costly.
  • Rolls according to the present invention may be used in various locations in a paper making machine, but are particularly well suited to use as press rolls.
  • the hardness can be controlled by density of the lay on and choice of wetting material, and a hardness in the range of 4 to 40 P&J is preferred.
  • a soft roll adapted to operate at high speed and high nip pressures for a press in a paper making machine having an outer shell comprising:
  • a sheet form web material formed from a fibrous mat formed from nonwoven needled polyester fibers being applied in layers on the roll;

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)
  • Rolls And Other Rotary Bodies (AREA)
US00263859A 1972-06-19 1972-06-19 Covered roll for paper making Expired - Lifetime US3800381A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US26385972A 1972-06-19 1972-06-19

Publications (1)

Publication Number Publication Date
US3800381A true US3800381A (en) 1974-04-02

Family

ID=23003540

Family Applications (1)

Application Number Title Priority Date Filing Date
US00263859A Expired - Lifetime US3800381A (en) 1972-06-19 1972-06-19 Covered roll for paper making

Country Status (17)

Country Link
US (1) US3800381A (Direct)
JP (1) JPS4955905A (Direct)
AR (1) AR196768A1 (Direct)
BE (1) BE800545A (Direct)
BR (1) BR7304507D0 (Direct)
CA (1) CA975204A (Direct)
CH (1) CH577642A5 (Direct)
DE (1) DE2330565A1 (Direct)
ES (1) ES415579A1 (Direct)
FI (1) FI66445C (Direct)
FR (1) FR2239148A5 (Direct)
GB (1) GB1422809A (Direct)
IT (1) IT989226B (Direct)
NL (1) NL7307841A (Direct)
NO (1) NO142129C (Direct)
SE (1) SE402879B (Direct)
ZA (1) ZA733659B (Direct)

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4324820A (en) * 1980-07-18 1982-04-13 St. Regis Paper Company Method and apparatus for coating a paper web
US4359938A (en) * 1980-12-19 1982-11-23 Koren Edward F Printing roller for removing hickeys
US4748736A (en) * 1985-09-16 1988-06-07 Valmet Oy Method for manufacturing a press roll
US5142759A (en) * 1991-08-27 1992-09-01 Beloit Corporation Roll cover apparatus
US5601920A (en) * 1995-04-06 1997-02-11 Stowe Woodward Licensco, Inc. Covered roll and a method for making the same
WO1998054405A1 (en) * 1997-05-30 1998-12-03 Valmet Corporation Thermoplastic-coated roll, method for manufacture of the roll, composition of thermoplastic coating, method of calendering by means of thermoplastic-coated rolls in accordance with the invention, and paper/board manufactured by means of such rolls
US6042918A (en) * 1996-05-20 2000-03-28 3M Innovative Properties Company Surface conditioning articles and process for making same
US6206994B1 (en) 1999-07-28 2001-03-27 Advanced Materials Corporation Method and apparatus for covering a metal roll core with a polymeric material preferable a high performance thermoplastic material
US6300261B1 (en) 1998-11-20 2001-10-09 3M Innovative Properties Company Self-healing articles resistant to oxidizing agents
US6409645B1 (en) 1997-06-13 2002-06-25 Sw Paper Inc. Roll cover
US6428455B1 (en) * 1999-04-29 2002-08-06 Voith Sulzer Papiertechnik Patent Gmbh Resilient roll
US6432031B1 (en) 1996-04-04 2002-08-13 Stowe Woodward Inc. Roll having a composite cover
US20020189749A1 (en) * 2000-05-18 2002-12-19 Advanced Materials Corporation Method for making a cover for a roll core having a multiple layer construction and having minimal residual stresses
US6514369B1 (en) 1999-07-28 2003-02-04 Advanced Materials Corporation Method for and devices used in covering a roll core with a resin infused fiber reinforced adhesive under layer and a polymeric top layer, the method including the use of an improved mold tape
US6752908B2 (en) 2001-06-01 2004-06-22 Stowe Woodward, Llc Shoe press belt with system for detecting operational parameters
US6793754B1 (en) 1999-07-28 2004-09-21 Advanced Materials Corporation Covered roll having an under-layer formed of resin infused densely packed fibers that provides increased strength and adhesion properties
US20040235630A1 (en) * 2003-05-21 2004-11-25 Madden Michael D. Method for forming cover for industrial roll
US20050015988A1 (en) * 2001-12-26 2005-01-27 Tetsuya Murakami Fiber-reinforced resin roll and method of manufacturing the roll
US20070111871A1 (en) * 2005-11-08 2007-05-17 Butterfield William S Abrasion-resistant rubber roll cover with polyurethane coating
EP2518212A1 (en) * 2011-04-26 2012-10-31 Metso Paper, Inc. Roll coating and method for its manufacture
US9845216B2 (en) 2009-09-24 2017-12-19 3M Innovative Properties Company Web conveyance method and apparatus using same
CN108698068A (zh) * 2016-12-21 2018-10-23 Nccm公司 无纺布覆盖的辊

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4766996A (en) * 1983-09-30 1988-08-30 Garrett Aerospace Rollers with oriented fiber reinforcement and method
US4576845A (en) * 1983-12-15 1986-03-18 Krc Inc. Thermally conductive base layers for cast polyurethane roll covers
CA2146770A1 (en) * 1992-10-16 1994-04-28 James Bonander A method of manufacturing a cover for a press roll
JP3615015B2 (ja) * 1996-04-11 2005-01-26 富士ゼロックス株式会社 画像形成装置およびその給紙部材
DE10001409A1 (de) 2000-01-14 2001-09-06 Voith Paper Patent Gmbh Elastische Walze und Verfahren zum Herstellen einer solchen

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB309746A (en) * 1928-03-08 1929-04-25 Walter Senior Stansfield Improvements in rollers for mangling or squeezing woven and like fabrics or for performing like operations
US1903038A (en) * 1929-12-10 1933-03-28 Eijiro Yamamoto Felt rubber roller
US2278982A (en) * 1938-12-30 1942-04-07 Standard Oil Dev Co Printing roll
GB986734A (en) * 1961-06-16 1965-03-24 Btr Industries Ltd Improvements in or relating to rollers
US3490119A (en) * 1968-10-23 1970-01-20 Yamauchi Rubber Ind Co Ltd Polyurethane rubber covered roll
US3588978A (en) * 1968-12-18 1971-06-29 Beloit Corp Grooved roll for paper-making
US3617445A (en) * 1968-12-18 1971-11-02 Beloit Corp Roll composition
US3707752A (en) * 1970-10-28 1973-01-02 Beloit Corp Roll covering

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB309746A (en) * 1928-03-08 1929-04-25 Walter Senior Stansfield Improvements in rollers for mangling or squeezing woven and like fabrics or for performing like operations
US1903038A (en) * 1929-12-10 1933-03-28 Eijiro Yamamoto Felt rubber roller
US2278982A (en) * 1938-12-30 1942-04-07 Standard Oil Dev Co Printing roll
GB986734A (en) * 1961-06-16 1965-03-24 Btr Industries Ltd Improvements in or relating to rollers
US3490119A (en) * 1968-10-23 1970-01-20 Yamauchi Rubber Ind Co Ltd Polyurethane rubber covered roll
US3588978A (en) * 1968-12-18 1971-06-29 Beloit Corp Grooved roll for paper-making
US3617445A (en) * 1968-12-18 1971-11-02 Beloit Corp Roll composition
US3707752A (en) * 1970-10-28 1973-01-02 Beloit Corp Roll covering

Cited By (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4324820A (en) * 1980-07-18 1982-04-13 St. Regis Paper Company Method and apparatus for coating a paper web
US4359938A (en) * 1980-12-19 1982-11-23 Koren Edward F Printing roller for removing hickeys
US4748736A (en) * 1985-09-16 1988-06-07 Valmet Oy Method for manufacturing a press roll
US5142759A (en) * 1991-08-27 1992-09-01 Beloit Corporation Roll cover apparatus
US5601920A (en) * 1995-04-06 1997-02-11 Stowe Woodward Licensco, Inc. Covered roll and a method for making the same
US5780131A (en) * 1995-04-06 1998-07-14 Stowe Woodward Company Covered roll and a method for making the same
US6432031B1 (en) 1996-04-04 2002-08-13 Stowe Woodward Inc. Roll having a composite cover
US6042918A (en) * 1996-05-20 2000-03-28 3M Innovative Properties Company Surface conditioning articles and process for making same
WO1998054405A1 (en) * 1997-05-30 1998-12-03 Valmet Corporation Thermoplastic-coated roll, method for manufacture of the roll, composition of thermoplastic coating, method of calendering by means of thermoplastic-coated rolls in accordance with the invention, and paper/board manufactured by means of such rolls
US6493938B1 (en) 1997-05-30 2002-12-17 Metso Paper, Inc. Thermoplastic-coated roll, method for manufacture and calendering of the thermoplastic-coated roll for use in paper/board machines
US6409645B1 (en) 1997-06-13 2002-06-25 Sw Paper Inc. Roll cover
US6300261B1 (en) 1998-11-20 2001-10-09 3M Innovative Properties Company Self-healing articles resistant to oxidizing agents
US6428455B1 (en) * 1999-04-29 2002-08-06 Voith Sulzer Papiertechnik Patent Gmbh Resilient roll
US6514369B1 (en) 1999-07-28 2003-02-04 Advanced Materials Corporation Method for and devices used in covering a roll core with a resin infused fiber reinforced adhesive under layer and a polymeric top layer, the method including the use of an improved mold tape
US6435244B1 (en) 1999-07-28 2002-08-20 Advanced Materials Corporation Apparatus for covering a metal roll core with a polymeric material, preferably a high performance thermoplastic material
US6206994B1 (en) 1999-07-28 2001-03-27 Advanced Materials Corporation Method and apparatus for covering a metal roll core with a polymeric material preferable a high performance thermoplastic material
US6776744B1 (en) 1999-07-28 2004-08-17 Advanced Materials Corporation Method for and devices used in covering a roll core with a resin infused fiber reinforced adhesive under layer and a polymeric top layer, the method including the use of an improved mold tape
US20040162202A1 (en) * 1999-07-28 2004-08-19 Shieh Yang T. Method for and devices used in covering a roll core with a resin infused fiber reinforced adhesive under layer and a polymeric top layer, the method including the use of an improved mold tape
US6793754B1 (en) 1999-07-28 2004-09-21 Advanced Materials Corporation Covered roll having an under-layer formed of resin infused densely packed fibers that provides increased strength and adhesion properties
US20020189749A1 (en) * 2000-05-18 2002-12-19 Advanced Materials Corporation Method for making a cover for a roll core having a multiple layer construction and having minimal residual stresses
US6752908B2 (en) 2001-06-01 2004-06-22 Stowe Woodward, Llc Shoe press belt with system for detecting operational parameters
US20050015988A1 (en) * 2001-12-26 2005-01-27 Tetsuya Murakami Fiber-reinforced resin roll and method of manufacturing the roll
US20040235630A1 (en) * 2003-05-21 2004-11-25 Madden Michael D. Method for forming cover for industrial roll
US6874232B2 (en) 2003-05-21 2005-04-05 Stowe Woodward, Llc Method for forming cover for industrial roll
US20070111871A1 (en) * 2005-11-08 2007-05-17 Butterfield William S Abrasion-resistant rubber roll cover with polyurethane coating
US10287731B2 (en) 2005-11-08 2019-05-14 Stowe Woodward Licensco Llc Abrasion-resistant rubber roll cover with polyurethane coating
US9845216B2 (en) 2009-09-24 2017-12-19 3M Innovative Properties Company Web conveyance method and apparatus using same
US10486932B2 (en) 2009-09-24 2019-11-26 3M Innovative Properties Company Web conveyance apparatus
EP2518212A1 (en) * 2011-04-26 2012-10-31 Metso Paper, Inc. Roll coating and method for its manufacture
US20130105101A1 (en) * 2011-04-26 2013-05-02 Metso Paper, Inc. Roll Coating Roll and Method for its Manufacture
US8647475B2 (en) * 2011-04-26 2014-02-11 Metso Paper, Inc. Roll coating roll and method for its manufacture
CN108698068A (zh) * 2016-12-21 2018-10-23 Nccm公司 无纺布覆盖的辊
US10316463B2 (en) * 2016-12-21 2019-06-11 Nccm Company, Llc Non-woven covered roller

Also Published As

Publication number Publication date
FR2239148A5 (Direct) 1975-02-21
CA975204A (en) 1975-09-30
BR7304507D0 (pt) 1974-09-05
JPS4955905A (Direct) 1974-05-30
DE2330565A1 (de) 1974-01-17
NO142129C (no) 1980-07-02
NL7307841A (Direct) 1973-12-21
ZA733659B (en) 1974-04-24
AR196768A1 (es) 1974-02-19
AU5710673A (en) 1974-12-19
SE402879B (sv) 1978-07-24
FI66445C (fi) 1984-10-10
GB1422809A (en) 1976-01-28
FI66445B (fi) 1984-06-29
ES415579A1 (es) 1976-02-16
BE800545A (fr) 1973-10-01
CH577642A5 (Direct) 1976-07-15
IT989226B (it) 1975-05-20
NO142129B (no) 1980-03-24

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