US2938242A - Top drawing roll assembly for spinning machines - Google Patents

Top drawing roll assembly for spinning machines Download PDF

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Publication number
US2938242A
US2938242A US677581A US67758157A US2938242A US 2938242 A US2938242 A US 2938242A US 677581 A US677581 A US 677581A US 67758157 A US67758157 A US 67758157A US 2938242 A US2938242 A US 2938242A
Authority
US
United States
Prior art keywords
bore
ring
carrier
spring ring
diameter
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
US677581A
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English (en)
Inventor
Schiltknecht Adolf
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.)
Joh Jacob Rieter und Cie AG
Original Assignee
Joh Jacob Rieter und Cie AG
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 Joh Jacob Rieter und Cie AG filed Critical Joh Jacob Rieter und Cie AG
Application granted granted Critical
Publication of US2938242A publication Critical patent/US2938242A/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
    • 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

  • the present invention relates to a top drawing roll assembly for spinning machines.
  • the first system mentioned abo"e is not reliable because the frictional engagement does not completely resist axial forces.
  • the second system is also not satisfactory, particularly if used with short carriers or sleeves and/or with relatively long bearings. There is not enough room available for effecting a good seal. It also necessitates sleevs of greater wall thickness to provide room for the groove in which the ring is received. It may be necessary to provide a second sleeve which is axially displaceable. All this increases the cost, complicates assembling, and impairs the sealing efiect.
  • the assembly according to the invention includes a loosely fitted spring ring for axially securing the bearing in the carrier for the covering of the top roll.
  • the eccentricity of the spring ring is not greater than the difference between the radii of the entry portion of the bore in the carrier and of the periphery of the spring ring, because there is an appropriate clearance between the ring and its carrier.
  • the ring sits loosely on the axle of the top roll and automatically centers the carrier when the carrier is pushed onto the bearing.
  • Fig. 2 illustrates a centering ring used in the device shown in Fig. l. 1
  • Fig. 3 is an axial section of the device with the parts in position during insertion of the bearing unit.
  • a carrier 1 for the covering of the top roll is provided with a bore 3 for receiving the journal bearing assembly 2.
  • the bore 3 snuggly fits the bearing.
  • a bore 4 of somewhat greater diameter is provided coaxially of the bore 3 and between the latter and the inlet opening of the bores.
  • An axle 6 extends from the hearing unit 2 to the outside and carries an annular sealing ring 5 of U-shaped cross sectional configuration.
  • the bearing unit includes a screw whose head 7 projects from the left side of the unit as seen in the drawing. The screw head 7 extends into a bore 8 which is of smaller diameter than the bore 3 and placed axially thereof. In this way a shoulder 9 is formed which serves as an axial abutment for the bearing unit 2.
  • a spring ring 10 whose outer periphery is circular is loosely supported by the axle 6 and placed between the sealing ring 5 and the hearing 2.
  • the ring 10 is split at 11, as shown in Fig. 2, so that it can be deformed in the radial direction.
  • a conical entry portion 13 is provided whose small diameter is adjacent to the bore portion 4 and is the same as that of the bore 4 and whose great diameter is somewhat greater than the outside diameter of the untensioned spring ring 10.
  • an annular recess 12 is provided which has a conical cross section similar to that of the entry portion 13, the small diameter ⁇ art of the recess being adjacent to the bore portion 4 and having the same diameter.
  • the axle 6 is provided with a collar 14 between the sealing ring 5 and the bearing 2.
  • the split spring ring 10 is provided With at least three internal protuberances 15 having surfaces facing the axle 6 and being arranged on a circle whose diameter is somewhat greater than the diameter of the shaft 6, when the ring is untensioned. When the ring is pushed into the bore 4 it is radially compressed and the inner surfaces of the protuberances 15 are close to the periphery of the collar 14 and center the spring ring.
  • Fig. 3 clearly shows a clearance between the bearing 2 and the bore portion 4. This facilitates insertion and removal of the bearing into and from the carrier member 1. Frictional forces must be overcome only when the bearing is moved to its final position in the bore portion 3.
  • the spring ring 10 When moving the bearing unit into the bore in the carrier 1 the spring ring 10 easily slips into the conical entry portion 13 of the bore and does not abut against the right face of the element 1 because of the relationship between the length of the diameters of the entry portion 13, of the outside periphery of the ring 10, of the collar 14, and of the inner surfaces of the spring ring 10 facing the collar 14.
  • the spring ring 10 facilitates centering of the bearing unit 2 in the bore of the element 1 shortly after insertion and passage of the spring ring through the entry portion 13.
  • the spring ring 10 snaps into the recess 12 and partly expands so that is, therefore, always pressed to the left against the abutment 9 by the action of the resilient ring 10.
  • the bore 4 serves two purposes, firstly it is a centering aid during insertion of the bearing into the carrier member 1 and secondly, in cooperation with the sealing ring 5 whose outside diameter is somewhat smaller than the diameter of the bore portion 4, it prevents entry of fly, etc., into thebore of the member 1.
  • a top drawing roll assembly for spinning machines including a bearing unit, a roll covering carrier, a bore in said carrier for coaxially receiving said bearing unit, said bore having a conical entry portion whose opening is greater than that of the bearing unit, an axle coaxiaily extending from said bearing unit and through saidentry portion when the bearing unit is in operating position, and a split spring ring carried coaxially of said bearing unit by said axle when said ring is compressed and loosely resting on said axle in eccentric position when said ring is expanded, the difierence between the radii of the opening of said conical entry portion and the periphery of the expanded ring not exceeding the eccentricity of the losel'y carried ring.
  • a top drawing r011 assembly according to claim 2 in which said entry portion is conical, the small diameter of the entry portion being adjacent to said intermediate portion and equal to the diameter of said intermediate portion an. annular recess of substantially conical cross section being interposed between said intermediate portion and said interior portion, the small diameter of said recess being adjacent to said intermediateportion and being equal to the diameter of said intermediate portion.
  • a top drawing roll assembly according to claim 3, the outside idameter ofithe untensioned spring ring being greater than the diameter of said intermediate portion, said ring having at least three internal protuberances abutting against said axle when said ring is pushed into said intermediate portion and compressed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
US677581A 1956-08-22 1957-08-12 Top drawing roll assembly for spinning machines Expired - Lifetime US2938242A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH819692X 1956-08-22

Publications (1)

Publication Number Publication Date
US2938242A true US2938242A (en) 1960-05-31

Family

ID=4539291

Family Applications (1)

Application Number Title Priority Date Filing Date
US677581A Expired - Lifetime US2938242A (en) 1956-08-22 1957-08-12 Top drawing roll assembly for spinning machines

Country Status (6)

Country Link
US (1) US2938242A (US06373033-20020416-M00035.png)
BE (1) BE560003A (US06373033-20020416-M00035.png)
CH (1) CH347117A (US06373033-20020416-M00035.png)
DE (1) DE1091917B (US06373033-20020416-M00035.png)
FR (1) FR1181127A (US06373033-20020416-M00035.png)
GB (1) GB819692A (US06373033-20020416-M00035.png)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2972787A (en) * 1959-03-06 1961-02-28 Skf Kugellagerfabriken Gmbh Top roller for spinning machines
US4300265A (en) * 1977-11-25 1981-11-17 Reiners & Furst Break-up roller for open-end spinning machine
US5267932A (en) * 1992-12-01 1993-12-07 Progressive Equipment, Inc. Top roll for drafting textile fibers

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1111548B (de) * 1960-05-30 1961-07-20 Wuerttembergische Spindelfabri Kupplung fuer Antriebswellen von Spindeln oder fuer Unterwalzen in Spinn- oder Zwirnmaschinen
DE1164288B (de) * 1961-08-01 1964-02-27 Skf Kugellagerfabriken Gmbh Oberwalze fuer Spinnereimaschinen-Streckwerke

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1049571A (fr) * 1951-11-23 1953-12-30 Zellwolle Lehrspinnerei Gmbh Cylindres de pression couplés sans guidage latéral pour etireuses de machines de filature et de machines analogues
US2730771A (en) * 1950-05-30 1956-01-17 Skf Kugellagerfabriken Gmbh Top roller for spinning machines
US2750634A (en) * 1952-12-01 1956-06-19 Stahlecker Wilhelm Retaining means for drafting rollers

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1334086U (US06373033-20020416-M00035.png) * 1900-01-01
BE490447A (US06373033-20020416-M00035.png) * 1948-08-23
US2755515A (en) * 1951-04-16 1956-07-24 Cotchett Top roll for drawing frames
DE907273C (de) * 1951-12-30 1956-06-07 Rollenlager Spindelfabrik Iasp Druckwalze fuer Streckwerke von Ringspinnmaschinen
DE1690405U (de) * 1954-10-14 1954-12-30 Duerkoppwerke Ag Druckroller fuer spinnmaschinen.
FR1003431A (fr) * 1959-02-18 1952-03-18 T E R C A P Cylindre étireur démontable pour machines à filer

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2730771A (en) * 1950-05-30 1956-01-17 Skf Kugellagerfabriken Gmbh Top roller for spinning machines
FR1049571A (fr) * 1951-11-23 1953-12-30 Zellwolle Lehrspinnerei Gmbh Cylindres de pression couplés sans guidage latéral pour etireuses de machines de filature et de machines analogues
US2750634A (en) * 1952-12-01 1956-06-19 Stahlecker Wilhelm Retaining means for drafting rollers

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2972787A (en) * 1959-03-06 1961-02-28 Skf Kugellagerfabriken Gmbh Top roller for spinning machines
US4300265A (en) * 1977-11-25 1981-11-17 Reiners & Furst Break-up roller for open-end spinning machine
US5267932A (en) * 1992-12-01 1993-12-07 Progressive Equipment, Inc. Top roll for drafting textile fibers

Also Published As

Publication number Publication date
DE1091917B (de) 1960-10-27
CH347117A (de) 1960-06-15
FR1181127A (fr) 1959-06-11
BE560003A (US06373033-20020416-M00035.png)
GB819692A (en) 1959-09-09

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