US3827120A - Covering for rolls of textile machines - Google Patents

Covering for rolls of textile machines Download PDF

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Publication number
US3827120A
US3827120A US00366951A US36695173A US3827120A US 3827120 A US3827120 A US 3827120A US 00366951 A US00366951 A US 00366951A US 36695173 A US36695173 A US 36695173A US 3827120 A US3827120 A US 3827120A
Authority
US
United States
Prior art keywords
roll
covering
roll cylinder
core
elastomeric
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
US00366951A
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English (en)
Inventor
F Mayer
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.)
Carl Freudenberg KG
Original Assignee
Individual
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
Priority to DE19702052249 priority Critical patent/DE2052249A1/de
Priority to CH1443771A priority patent/CH528608A/de
Priority to GB4925271A priority patent/GB1365963A/en
Priority to FR7138125A priority patent/FR2113158A5/fr
Application filed by Individual filed Critical Individual
Priority to US00366951A priority patent/US3827120A/en
Application granted granted Critical
Publication of US3827120A publication Critical patent/US3827120A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/70—Constructional features of drafting elements
    • D01H5/74—Rollers or roller bearings
    • D01H5/80—Rollers or roller bearings with covers; Cots or covers
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H2700/00—Spinning or twisting machines; Drafting devices
    • D01H2700/245—Conception or fabrication of drafting cylinders

Definitions

  • this invention is directed to roll coverings for large roll cylinders extensively employed in machinery utilized in the textile industry. More especially, this invention is directed to a roll covering which is adapted to engage the smooth, unindented surface of a full length roll covering through the use of at least one internally disposed elastomeric rib element which engages the smooth, unindented surface of the roll cylinder.
  • the inside diameter of the tubular rubber covering is made somewhat smaller than outside diameter of the top roll cylinder.
  • the inside diameter of the tubular rubber covering is made somewhat smaller than the outside diameter of the top roll cylinder. If the diameter of the tubular covering is appreciably smaller than the outside diameter of the cylinder, the covering will, of course, cling more tightly to the cylinder. This assures precise seating of the covering at first, but the greater the tension of the covering is, the shorter its life will be.
  • the surface of the cylinder has been coated with an adhesive.
  • This method of installation requires a careful match between the diameters of the cylinder and of the covering.
  • the life of the applied adhesive is subject to certain limitations. After cementing, the cylinder with its covering has had to be let stand for a relatively long time to enable the bonding agent to cure.
  • roll coverings employed but generally these types are employed in apparatuses, wherein there is only a pair of facing end hubs, i.e., there is no full length axle for the roll cylinder.
  • Such roll coverings generally have a decidedly different construction in that they do not have to abut the roll cylin der over its entire length.
  • this invention contemplates a roll cylinder having a smooth surface and a full length axle and being free of surface indentations covered with a roll covering comprising a tubular core, a layer of elastomeric material externally mounted on said core and at least one elastomeric rib element internally connected to said core facing and abutting the smooth, unindented surface of said roll cylinder.
  • the elastomeric rib element abuts the smooth surface of the roll cylinder over a distance of at least fifty percent of the common length of the roll cylinder and roll covering.
  • the roll covering of the present invention is provided with at least one internally connected elastomeric rib element.
  • the purpose of such elastomeric rib element is to run in contact with the smooth surface of the internally disposed roll cylinder over a major amount of the length thereof.
  • Such length refers to the common length that the roll covering and roll cylinder have.
  • a roll covering can cover less than all of the surface of a roll cylinder.
  • the elastomeric rib element engages, obviously, only that portion of the roll cylinder disposed therebeneath.
  • the rib element is in contact with the roll covering over at least 50 percent of the common length, more preferably at least percent and most desirably over its entire length.
  • a roll covering comprising a tubular core, a layer. of elastomeric material externally mounted on the core and at least one elastomeric rib element internally connected to the core and adaptable to face and abut the smooth, unindented, surface of a roll cyllinder.
  • rib element or rib elements traverse at least 50 percent of the length of the roll covering, more preferably 80 percent and most desirably the entire length thereof.
  • FIG. 1 is an isometric view of a roll covering for a cylinder pursuant to the invention
  • FIG. 2 is a cross-sectional elevation of a section of the roll cover of FIG. I viewed from the side;
  • FIG. 3 is a sectional view taken along the line A A of the roll cover of FIG. 2;
  • FIG. 4 is an isometric view similar to FIG. 1, said view partially broken away, showing the disposition of the roll covering about a smooth surface, unindented, interially disposed roll cylinder having a full axis;
  • FIG. 5 is a sectional view taken along the line 5 5 of FIG. 4;
  • FIG. 6 is a sectional side elevation of a portion of a mold employed in the formation of a roll cover of FIG.
  • FIG. 7 is a view similar to FIG. 6 of a facing portion of a mold employed in the formation of the roll cover of FIG. 1;
  • FIG. 8 is another portion of the mold employed in the formation of the roll cover of FIG. 1 which figure is similar to FIGS. 6 and 7, all as well appear more fully from the disclosure below.
  • FIG. 1 shows a plurality of interiorly disposed internally mounted elastomeric rib elements 1, mounted to a core member 2 over which is disposed a layer of elastomeric material externally mounted to such core, said layer of elastomeric material being represented by reference numeral 3.
  • FIG. 2 it is seen that the elastomeric internally disposed rib elements 1 face one another and the space to be occupied by a full length smooth surface unindented roll cylinder.
  • FIG. 3 a sectional view of the apparatus depicted in FIG. 2, such section being taken along the lines A A of FIG. 2.
  • the combined width of the rib element be at least forty percent of the circumference of the roll cylinder on which the roll covering is to be placed.
  • the core member which carries the elastomeric ribs, i.e., the member to which the elastomeric ribs can be attached can be made of any suitable material, especially metal or plastic.
  • FIG. 4 there is shown the manner in which a plurality of rib elements engage the surface of the roll cylinder.
  • the entire roll covering assembly can abut the roll cylinder 20.
  • This roll cylinder has a smooth surface 22, i.e., it is free of indentations in the nature of a keyway or other indentations which function to lock with an element on the roll covering.
  • the rib elements sufficiently adhere the entire roll covering assembly to the roll cylinder that the roll cylinder can be rotated at extremely high speeds without damage to the roll covering and without the possibility of slippage of the roll covering with respect to the roll cylinder.
  • the roll covering can be employed on drafting machines employed in fiber processing wherein exceptionally high speeds are employed.
  • the roll coverings can be employed in the drafting system of ring spinning machines.
  • the mold consists, as shown in FIG. 6, of the bottom part III.
  • the bottom part bears the core K over which there is drawn a metal tube having an inside diameter of 18.7 mm, the solid line representing the metal contact surface with inside of the sleeve (which is not shown).
  • the broken line shows the fluting in the core for producing the rubber ribs on the inside of the metal sleeve.
  • the middle part II of the mold (FIG. 8) is placed over the bottom part III, and it contains the procket A into which a rubber blank is inserted.
  • the piston I (FIG. 7) which plunges into the pocket A the rubber compound is forced under heat and pressure (C; 200 atmospheres gauge) into part B of Mold II, filling the gap between the cord K and the central aperture of part II. This takes place through six bores laterally of portion C. A covering approximately 6 mm thick is thus formed on the outside of the sleeve.
  • eight ribs of a thickness of 0.35 mm and a width of 2 mm are formed.
  • the manufacturing is thus performed by the transfer molding process.
  • One special advantage of the manufacturing process on which the invention is based is that, due to the pressing or injection of the rubber or elastomer into a mold and the simultaneous vulcanization of the rubber or cross-linking of the elastomer that takes place, there is no tension in the rubber or elastomer, and this results in greatly improved resistance to aging.
  • the roll covering of the present invention is highly useful on existing roll cylinders. It does not require the use of adhesive and accomplishes a highly efficient junction of the roll covering to the roll cylinder.
  • the roll covering can, however, be readily withdrawn from the roll cylinder should it be desired to replace such roll covering with another surface or, should it be desired, to inspect the surface of the roll cylinder.
  • the roll covering of the present invention can be prepared from readily available materials.
  • the nature of the elastomeric material comprising the outsurface 3 is not particularly critical and is dictated by the use to which the roll covering will be placed.
  • the rib elements 1 are resilient so that they can be deformed inwardly when the roll covering is slipped over the full length axle of the roll cylinder.
  • the rib elements I bear against the smooth surface 22 of the roll cylinder 20 and exert a pressure of sufficient magnitude to hold the entire roll covering assembly thereto so that the over-all assembly comprising the roll cylinder and roll covering function as an integral unit.
  • a roll cylinder having a smooth surface and a full length axle and being free of surface indentations covered with a roll covering comprising a tubular core, a
  • a roll cylinder according to claim 2 wherein there are a plurality of internally connected elastomeric rib elements.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Rollers For Roller Conveyors For Transfer (AREA)
US00366951A 1970-10-24 1973-06-04 Covering for rolls of textile machines Expired - Lifetime US3827120A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE19702052249 DE2052249A1 (de) 1970-10-24 1970-10-24 Belag für Walzen von Textilmaschinen
CH1443771A CH528608A (de) 1970-10-24 1971-10-05 Belag für Walzen von Streckwerken für Textilmaschinen
GB4925271A GB1365963A (en) 1970-10-24 1971-10-22 Cots for rollers
FR7138125A FR2113158A5 (de) 1970-10-24 1971-10-22
US00366951A US3827120A (en) 1970-10-24 1973-06-04 Covering for rolls of textile machines

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19702052249 DE2052249A1 (de) 1970-10-24 1970-10-24 Belag für Walzen von Textilmaschinen
US19146771A 1971-10-21 1971-10-21
US00366951A US3827120A (en) 1970-10-24 1973-06-04 Covering for rolls of textile machines

Publications (1)

Publication Number Publication Date
US3827120A true US3827120A (en) 1974-08-06

Family

ID=27182951

Family Applications (1)

Application Number Title Priority Date Filing Date
US00366951A Expired - Lifetime US3827120A (en) 1970-10-24 1973-06-04 Covering for rolls of textile machines

Country Status (5)

Country Link
US (1) US3827120A (de)
CH (1) CH528608A (de)
DE (1) DE2052249A1 (de)
FR (1) FR2113158A5 (de)
GB (1) GB1365963A (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4037299A (en) * 1975-05-27 1977-07-26 Dayco Corporation Textile cot assembly
US4779320A (en) * 1986-02-15 1988-10-25 Kleinewefers Gmbh Roll for use in calenders
US5142758A (en) * 1990-04-21 1992-09-01 Delhaes Johannes C Transport roller for paper sheets
US5451198A (en) * 1994-09-12 1995-09-19 Lancaster; Joseph L. Roller with replaceable sleeve
US20070039805A1 (en) * 2005-08-17 2007-02-22 Sergio Fandella Slotted roller for low back pressure module
CN103103649A (zh) * 2012-12-10 2013-05-15 苏州尊元纺织有限公司 一种纺织机械的空心罗拉
CN108046026A (zh) * 2017-12-01 2018-05-18 常德金德新材料科技股份有限公司 一种导辊
CN109502426A (zh) * 2018-11-23 2019-03-22 江苏恒神股份有限公司 一种高刚度碳纤维复合材料辊

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH033581Y2 (de) * 1986-01-16 1991-01-30
DE3639132A1 (de) * 1986-11-15 1988-05-19 Licentia Gmbh Elektromotor mit riemenscheibe
DE19928753A1 (de) * 1999-06-23 2000-12-28 Voith Sulzer Papiertech Patent Elastische Walze und Verfahren zum Herstellen einer solchen

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1273909A (en) * 1917-01-02 1918-07-30 William H Miner Antifriction-roller and process of making same.
US1493257A (en) * 1923-05-22 1924-05-06 Charles C Garner Ink-feeding roller
GB235234A (en) * 1924-06-09 1926-04-22 William Frederick Grupe Improvements relating to rollers or pressure members of calendering machines and the like
US1619371A (en) * 1926-02-26 1927-03-01 Goodrich Co B F Rubber-covered roll
US2066755A (en) * 1935-10-17 1937-01-05 Stowe Woodward Inc Roll
US2715879A (en) * 1950-05-23 1955-08-23 Wallace & Tiernan Inc Trifluorochloroethylene surfaced sheeting roller

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1273909A (en) * 1917-01-02 1918-07-30 William H Miner Antifriction-roller and process of making same.
US1493257A (en) * 1923-05-22 1924-05-06 Charles C Garner Ink-feeding roller
GB235234A (en) * 1924-06-09 1926-04-22 William Frederick Grupe Improvements relating to rollers or pressure members of calendering machines and the like
US1619371A (en) * 1926-02-26 1927-03-01 Goodrich Co B F Rubber-covered roll
US2066755A (en) * 1935-10-17 1937-01-05 Stowe Woodward Inc Roll
US2715879A (en) * 1950-05-23 1955-08-23 Wallace & Tiernan Inc Trifluorochloroethylene surfaced sheeting roller

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4037299A (en) * 1975-05-27 1977-07-26 Dayco Corporation Textile cot assembly
US4779320A (en) * 1986-02-15 1988-10-25 Kleinewefers Gmbh Roll for use in calenders
US5142758A (en) * 1990-04-21 1992-09-01 Delhaes Johannes C Transport roller for paper sheets
US5451198A (en) * 1994-09-12 1995-09-19 Lancaster; Joseph L. Roller with replaceable sleeve
US20070039805A1 (en) * 2005-08-17 2007-02-22 Sergio Fandella Slotted roller for low back pressure module
CN103103649A (zh) * 2012-12-10 2013-05-15 苏州尊元纺织有限公司 一种纺织机械的空心罗拉
CN108046026A (zh) * 2017-12-01 2018-05-18 常德金德新材料科技股份有限公司 一种导辊
CN109502426A (zh) * 2018-11-23 2019-03-22 江苏恒神股份有限公司 一种高刚度碳纤维复合材料辊

Also Published As

Publication number Publication date
GB1365963A (en) 1974-09-04
FR2113158A5 (de) 1972-06-23
CH528608A (de) 1972-09-30
DE2052249A1 (de) 1972-04-27

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