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US2644988A - Means for supporting and loading the top rollers of textile drafting apparatus - Google Patents

Means for supporting and loading the top rollers of textile drafting apparatus Download PDF

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Publication number
US2644988A
US2644988A US190914A US19091450A US2644988A US 2644988 A US2644988 A US 2644988A US 190914 A US190914 A US 190914A US 19091450 A US19091450 A US 19091450A US 2644988 A US2644988 A US 2644988A
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US
United States
Prior art keywords
arm
rollers
roller
supporting
loading
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
US190914A
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English (en)
Inventor
Haythornthwaite James Jackson
Calvert James
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TMM Research Ltd
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TMM Research Ltd
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Filing date
Publication date
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Publication of US2644988A publication Critical patent/US2644988A/en
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    • 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
    • D01H5/46—Loading arrangements
    • D01H5/50—Loading arrangements using springs
    • D01H5/505—Loading arrangements using springs for top roller arms

Definitions

  • the invention has reference to the support and loading of the upper rollers of textile drafting apparatus, such as forms part of a drawing or spinning machine, the object being to provide improved supporting and loading means as an alternative to the hitherto conventional arrangement in which the upper rollers are carried in cap-bars pivoted at the rear of the roller-stand and pressed upon the lower rollers by the downwardly acting mass of heavy weights suspended beneath the roller-stand upon stirrup-like members connected to saddles arranged to bear upon the upper surfaces of the roller arbors.
  • the upper rollers of a textile drafting apparatus are mounted at their arbors in a common supporting arm which is pivoted upon a fixed support, which. support also carries an abutment pivoted at a point spaced from the roller supporting arm pivot, said arm being arranged in its operative position to bear against said abutment at a point located above the plane containing the pivotal axis of the arm' and the centre of mass of the arm (together with the rollers and other ancillary members carried thereby), such that the pressure exerted between the abutment and the arm imparts a downwardly acting loading force to the upper drafting rollers.
  • the roller-supporting arm and the abutment are both pivoted at different points in a common vertical plane upon a fixed member of the frame, at the rear of the roller-stand.
  • the part of the roller-supporting arm which bears against the abutment is conveniently furnished with an inset arranged to make contact with a bearing face on the abutment, said inset being adjustable for the purpose of regulating the loading pressure exerted on the arm.
  • Further features of the invention may consist in the provision of resilient cushions through which the loading pressure is transmitted to the upper drafting rollers, and of detents respectively upon the roller-supporting arm and the abutment which can be engaged to retain the arm when raised to the inoperative position, e. g. for cleaning purposes. 1
  • Fig. 1 is a fragmentary end view of the apparatus
  • Fig. 2 is a section thereof along the longitudinal axis of airoller-supporting arm
  • Fig. 3 is a detail as viewed on theline IIIIII Claims.
  • (Cl. 19'135) of Fig. 2 illustrating the manner of supporting an auxiliary pressure roller
  • Fig. 4 is a detail as viewed on the line IV--IV of Fig. 2, depicting the internal construction of the bearings of theupper drafting rollers and the mountingof the front roller clearers.
  • the upper drafting rollers are made in aligned pairs joined as a unit. by a common arbor; the rollers may be fixed on the arbor which is arranged to rotate in the bearing of the supporting arm, or they may be rotatably mounted (pref erably by means of ballor roller-type anti-friction bearings) upon an arbor which ismerely carried by the bearing without rotating therein.
  • the apparatus comprises in respect of each set of such double-roller units, that is the front rollers I, the intermediate rollers 2, and the back rollers 3, an individual roller-supporting arm 4, the respective arbors 5, 6 and 1 being retained by a spring clip 8 ina bearing mounted on the underside of the arm 4;
  • the arm 4 is of inverted channel-section, and each such bearing.
  • Each roller-support arm 4 is pivoted at its rear extremity upon a pin l5 fixed in a bracket I6 which: is rigidly'mounted upon a rail l1 extending longitudinally throughout the machine at the rear of the roller-stand and which forms part of the stationary framework of the machine.
  • the arms 4 are of elbowed formation, the elbow l8 providing a mounting for an inset contactmember consisting of an adjustable screwthreaded pin l9 having a hardened head 20 which faces rearwardly.
  • a movable abutment 22 consisting' of a short lever having at its free end a convex end-face 23 in which is embedded.
  • the latter is depressed slightly against the pressure of the springs l3, until the head of the pin I9 clears the pin 24, when the abutment 22 may be raised as shown at the right-hand side of Fig. 1 to enable the arm 4 to swing upwards and rearwardly.
  • the underside of the abutment lever 22 and the upper side of the elbow 18 of the arm 4 are respectively provided with detents 25 and 26 which engage each other to retain the arm in the raised position.
  • the aforesaid spring clips 8 prevent the rollers l, 2, 3 from dropping out of their bearings but are yieldable to permit the removal of the rollers if necessary.
  • the apparatus comprises a light presser roller, e. g. the roller 21, this may be retained loosely by means of the spaced depending hooked ends 28 of a cross-bar 29 fixed at its mid-point to av block 30 attached by a screw [0 to the arm 4 between the bearings of the rollers l and 2 (Fig. 3).
  • the clearer roller SI for the front roller 1 is carried by its arbors 32 between two slotted brackets 33 which are mounted. on adjacent arms 4 in the manner illustrated in Fig. 4, said brackets 33 being secured between the underside of the arms 4 and the housings 9.
  • Clearer rolls for the other upper drafting rollers may be mounted in like manner, or a stationary pad type of clearer may be used, as shown at 34.
  • a cover-plate 35 is conveniently pivoted at 38 to the upper surface of the roller-support arm 4 to prevent fly from lodging upon the bearings of the rollers.
  • a textile drafting apparatus comprising, in combination, a fixed support, and arm pivotally supported thereon, upper drafting rollers mounted in common at their arbors or journals in said arm, a rigid abutment pivoted on the fixed support at a point spaced from the roller supporting arm pivot, said arm being arranged in operative position to bear directly against said abu"- ment at a point located above the plane containing the pivotal axis of the arm and the combined centre of mass of the arm together with the rollers and ancillary components carried by the arm, such that the pressure exerted between the abutment and the arm imparts a downwardly acting force to the upper drafting rollers.
  • a textile drafting apparatus comprising, in
  • a fixed support an arm pivotally supported thereon, upper drafting rollers mounted in common at their arbors or journals in said arm, a rigid abutment pivoted on the fixed support at a point spaced above the roller-supporting arm pivot, said arm being arranged in its operative position to bear directly against said abutment at a point so located with respect to the pivotal axis of said arm as to bring about a turning moment about said axis, imparting a downwardly acting loading force to the upper drafting rollers.
  • a textile drafting apparatus as claimed in claim 1 in which yielding means are provided for urging the upper and lower drafting rollers toward one another, and comprising, in the part of the roller-supporting arm which bears against the abutment, an inset contact member the setting of which is adjustable for varying the loading pressure exerted on the arm.
  • a textile drafting apparatus as claimed in claim 1 comprising detents upon the rollersupporting arm and the abutment adapted for releasable inter-engagement to retain the arm when raised out of the operative position.
  • a textile drafting apparatus as claimed in claim 1, wherein the bearing of each roller comprises a bifurcated housing receiving the arbor of the roller, a pressure pad arranged to bear downwardly on the roller arbor, and a spring compressed between said pad and. an adjustable set-screw.
  • a textile drafting apparatus as claimed in claim 1, wherein yielding means are provided for urging the upper and lower drafting rollers toward one another, there being in the part of the roller supporting arm which bears against the abutment, an inset contact member the setting of which is adjustable for varying the loading pressure exerted on the arm, the inset contact-member being constituted by a screwthreaded pin mounted with its head projecting rearwardly from an elbowed part of the rollersupporting arm, and wherein a pivoted lever, constituting the abutment for the arm, has a convex surface in which is provided a projection against which the head of said pin bears when the arm is in the operative position.
  • a textile drafting apparatus as 'claimed in claim 1, wherein the roller supporting arm is of inverted channel formation and the upper drafting rollers are supported therein by bearings mounted slidably between the flanges of the arm, and comprising means for securing said bearings to the arm in a variety of alternative positions according to the required interspacing of the rollers, and means for retaining the rollers in their bearings when the arm is raised whilst being References Cited in the file of this patent UNITED STATES PATENTS Number Number Name Date 7 Honda Nov. 23,1937 Stahlecker June 17, 1941 Toenniessen Dec. 29, 1942 Stahlecker Aug. 17, 1943 Hess July 11, 1944 Naegeli May 23, 1950 FOREIGN PATENTS Country Date France Jan. 15, 1942

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
US190914A 1949-11-16 1950-10-19 Means for supporting and loading the top rollers of textile drafting apparatus Expired - Lifetime US2644988A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB286073X 1949-11-16

Publications (1)

Publication Number Publication Date
US2644988A true US2644988A (en) 1953-07-14

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ID=10278286

Family Applications (1)

Application Number Title Priority Date Filing Date
US190914A Expired - Lifetime US2644988A (en) 1949-11-16 1950-10-19 Means for supporting and loading the top rollers of textile drafting apparatus

Country Status (4)

Country Link
US (1) US2644988A (de)
BE (1) BE499223A (de)
CH (1) CH286073A (de)
FR (1) FR1026099A (de)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2694230A (en) * 1950-12-21 1954-11-16 Ver Kugellagerfabriken Ag Supporting and weighting device for the top rolls of textile drawing mechanisms
US2865056A (en) * 1956-01-04 1958-12-23 Skf Kugellagerfabriken Gmbh Textile drawing mechanism
US2870488A (en) * 1954-03-17 1959-01-27 Whitin Machine Works Top roll positioning and pressureapplying means for textile drafting machine
US2881481A (en) * 1955-11-18 1959-04-14 Whitin Machine Works Top roll positioning and tensioning mechanism for textile drafting apparatus
US2941263A (en) * 1957-03-15 1960-06-21 Skf Kugellagerfabriken Gmbh Textile drawing mechanism
US3006036A (en) * 1957-10-24 1961-10-31 Skf Kugellagerfabriken Gmbh Schrotz
DE1117460B (de) * 1957-07-25 1961-11-16 Alsacienne Constr Meca Oberwalzen-Trag- und Belastungsarm von im wesentlichen U-foermigem Querschnitt fuer Spinnmaschinenstreckwerke
US3942223A (en) * 1973-03-13 1976-03-09 Societe Alsacienne De Constructions Mecaniques De Mulhouse Staple draft devices
US5119622A (en) * 1989-09-12 1992-06-09 Hans Stahlecker Spinning machine having a plurality of drafting units and a movable cleaning device for stripping devices

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1069045B (de) * 1959-11-12
DE961066C (de) * 1952-04-13 1957-03-28 Wuertt Spindelfabrik G M B H Oberwalzen-Trag- und -Belastungsarm fuer Streckwerke an Spinnereimaschinen
DE943397C (de) * 1952-09-11 1956-05-17 Zinser Textilmaschinen Gmbh Riemchen-Streckwerk
DE1026207B (de) * 1954-02-15 1958-03-13 Spintex Spinnerei Maschb G M B Vorrichtung zum Belasten der Oberwalzen von Streckwerken
NL92059C (de) * 1954-04-01
DE1118072B (de) * 1955-06-28 1961-11-23 Weller Maschf Heinz Doppelriemchenstreckwerk, insbesondere fuer lange Fasern
DE1084176B (de) * 1957-03-15 1960-06-23 Skf Kugellagerfabriken Gmbh Oberwalzentrag- und Belastungsarm fuer Spinnereimaschinen-Streckwerke
DE1103197B (de) * 1957-03-25 1961-03-23 Ernst Toenniessen K G Streckwerk fuer Spinnereimaschinen
BE567842A (de) * 1957-08-23

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2100139A (en) * 1935-01-12 1937-11-23 Honda Kikutaro Apparatus for giving drafts to cotton slivers
US2246474A (en) * 1939-01-04 1941-06-17 Ver Kugellagerfabriken Ag Guiding arrangement for top weighting rolls
FR871451A (fr) * 1941-04-09 1942-04-27 Sachsische Textilmaschinenfabr Mécanisme étireur à cylindres supérieurs flottants
US2306849A (en) * 1939-11-24 1942-12-29 Toenniessen Ernst Drawing frame with adjustable holder for the pressure rollers
US2326979A (en) * 1939-11-24 1943-08-17 Guiding arrangement for top rolls
US2353338A (en) * 1941-03-29 1944-07-11 Joh Jacob Rieter & Cie Ag Draw frame
US2508964A (en) * 1947-03-19 1950-05-23 Rieter Joh Jacob & Cie Ag Naegeli

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2100139A (en) * 1935-01-12 1937-11-23 Honda Kikutaro Apparatus for giving drafts to cotton slivers
US2246474A (en) * 1939-01-04 1941-06-17 Ver Kugellagerfabriken Ag Guiding arrangement for top weighting rolls
US2306849A (en) * 1939-11-24 1942-12-29 Toenniessen Ernst Drawing frame with adjustable holder for the pressure rollers
US2326979A (en) * 1939-11-24 1943-08-17 Guiding arrangement for top rolls
US2353338A (en) * 1941-03-29 1944-07-11 Joh Jacob Rieter & Cie Ag Draw frame
FR871451A (fr) * 1941-04-09 1942-04-27 Sachsische Textilmaschinenfabr Mécanisme étireur à cylindres supérieurs flottants
US2508964A (en) * 1947-03-19 1950-05-23 Rieter Joh Jacob & Cie Ag Naegeli

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2694230A (en) * 1950-12-21 1954-11-16 Ver Kugellagerfabriken Ag Supporting and weighting device for the top rolls of textile drawing mechanisms
US2870488A (en) * 1954-03-17 1959-01-27 Whitin Machine Works Top roll positioning and pressureapplying means for textile drafting machine
US2881481A (en) * 1955-11-18 1959-04-14 Whitin Machine Works Top roll positioning and tensioning mechanism for textile drafting apparatus
US2865056A (en) * 1956-01-04 1958-12-23 Skf Kugellagerfabriken Gmbh Textile drawing mechanism
US2941263A (en) * 1957-03-15 1960-06-21 Skf Kugellagerfabriken Gmbh Textile drawing mechanism
DE1117460B (de) * 1957-07-25 1961-11-16 Alsacienne Constr Meca Oberwalzen-Trag- und Belastungsarm von im wesentlichen U-foermigem Querschnitt fuer Spinnmaschinenstreckwerke
US3006036A (en) * 1957-10-24 1961-10-31 Skf Kugellagerfabriken Gmbh Schrotz
US3942223A (en) * 1973-03-13 1976-03-09 Societe Alsacienne De Constructions Mecaniques De Mulhouse Staple draft devices
US5119622A (en) * 1989-09-12 1992-06-09 Hans Stahlecker Spinning machine having a plurality of drafting units and a movable cleaning device for stripping devices

Also Published As

Publication number Publication date
FR1026099A (fr) 1953-04-23
CH286073A (de) 1952-10-15
BE499223A (de)

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