US2762082A - Loading device for pressure rollers - Google Patents

Loading device for pressure rollers Download PDF

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Publication number
US2762082A
US2762082A US2762082DA US2762082A US 2762082 A US2762082 A US 2762082A US 2762082D A US2762082D A US 2762082DA US 2762082 A US2762082 A US 2762082A
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United States
Prior art keywords
rollers
pressure
roller
holding
pressure rollers
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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
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English (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

Definitions

  • the invention relates to a loading-device for pressure rollers, especially for the pressure-rollers of drafting apparatus of spinning machines.
  • rotating rollers with superimposed pressure-rollers are used to a great extent, the rollers being loaded by weights or by spring pressure and the material to be processed being clamped between a pressure-roller and a bottom roller.
  • the necessary loading pressure for attaining the required pressure between the rollers depends on the varying drafting and spinning conditions, on the kind of fibrous material and on its thickness and twist, and on other conditions.
  • the loading of the pressure-rollers stresses the bottom roller and causes bending and further constitutes the main part of the load on the bearings of the rollers.
  • the bending and bearing stresses are of a decisive influence on the size of the Working-rollers, because these must not bend to an unallowable amount under the influence of the loading forces.
  • the diameter of the working-rollers, the distance between the bearing-points, as well as the number of bearings had, therefore, to be selected in conformity with the stresses mentioned. In other words, heretofore, the diameters of the working-rollers could not be selected merely in conformity with the best spinning and drafting requirements, as is for instance desirable when material of short fibre is processed in drafting machines.
  • the distances between the various rollers and cylinders must be as small as possible. There is, however, a limit to the reduction which can be made in the diameter of the rollers for a given length, as also, on the other hand, for a given roller diameter there is a determined distance between the bearings and a determined number of bearings.
  • the shafts of the pressure-rollers are either held at their ends, in special holders such as in slots in the frames or in caps, or special supporting rods, lever arms or the like, are used which with one end encircle the shaft of the pressure-roller in the middle and at the other end are hinged to a fixed fulcrum.
  • the purpose of the present invention is to provide a loading device for pressure-rollers, especially for drafting mechanism of spinning-machines which, on the one hand, allows the pressure-roller to be given any degree of loading-pressure without unduly stressing the lower roller to cause bending or subjecting its hearings to pressure, and which, on the other hand, makes use of the 2,762,082 Patented Sept. 11, 1956 lower roller itself to fix the position of the pressureroller.
  • the invention consists in connecting the pressure-roller directly to the lower or opposed roller wtih which it operates, with its axis parallel to the latter, and with the two rollers co-operating as regards form and load.
  • the holding device for the pressure roller has a bearing engaging around the lower roller in such a manner that it cannot shift axially, while it may, according to one form of the invention, engage a recess in the bottom-roller.
  • the bearing of the holding-device for the pressure-roller is held in position on the lower roller by means of cylindrical bushes pushed over it.
  • the holding-device of the pressure-roller is provided with at least one spring, the pressure of which acts on the pressure-roller.
  • a parallel guide can be provided in which a slide-block, pressing on the pressure-roller by means of a spring is fitted.
  • the slide-block complete with spring can be interchangeable.
  • the bearing of the holding-device can furthermore be so designed that after dismantling the pressure-roller, the device can be removed as a whole from the lower-roller.
  • the holding-device of the pressure-roller consists of a clamp one end of which presses on the pressure-roller and the other end of which has its bearing on the lower-roller.
  • the holding-device can also be made a a resilient clamp one end of which grips under the lower-roller and the other end of which presses on the pressure-roller.
  • the holding-device is suitably secured against turning around the axis of the lower roller by means of a stop.
  • the holding-device can furthermore act on the lower roller through a roller bearing.
  • the holding device can in a further form of the invention be supported by at least one counterpressure-roller, having its bearing .in the device itself.
  • Figure 1 is a perspective view of the loading-device according to one form of the invention.
  • FIG 2 is a vertical section through the loading-device shown in Figure 1.
  • Figure 3 shows a modified detail of the loading-device in cross-section.
  • Figure 4 shows another modification in part longitudinal section.
  • Figure 5 is the view of another form of the invention in part longitudinal section.
  • Figure 6 is a cross-section through the form shown in Figure 5.
  • Figure 7 shows another form of the invention in part longitudinal section.
  • Figure 8 is a diagrammatic cross-section of another construction.
  • Figure 9 shows a releasable device in cross-section.
  • Figure 10 shows a modification of the form shown in Figure 9.
  • Figure 11 is a side-view of a simplified form of the loading-device.
  • a pair of pressure rollers spaced from and connected with each other, shaft means arranged below and in spaced relationship to said pressure rollers, a pair of sleeves connected to said shaft means and spaced from each other, said sleeves forming a pair of lower rollers and being arranged for cooperation with said pressure rollers, holding means journalled on said shaft means and fitting between said sleeves so as to be substantially immovable in the axial direction of said shaft means, said holding means holding said pair of pressure rollers in axial parallel position with regard to said lower rollers, extension means connected to said holding means, and means adjacent said extension means and forming an abutment therefor to prevent said holding means from turning around the longitudinal axis of said shaft means in the direction of the working movement of said lower rollers.
  • a pair of pressure rollers spaced from and connected with each other, a pair of lower rollers spaced from each other and arranged for cooperation with said pressure rollers, shaft means interconnecting said lower rollers, anti-friction bearing means mounted on said shaft means, holding means journalled on said anti-friction bearing means only and holding said pair of pressure rollers in axis parallel position with regard to said lower rollers, said pressure rollers being force locked with said lower rollers by said holding means, and means adjacent said holding means and arranged to prevent said holding means from turning on said shaft means in the direction of the working movement of said lower rollers.
  • a pair of pressure rollers spaced from each other, first shaft means interconnecting said pressure rollers, a pair of lower rollers spaced from each other and arranged for cooperation with said pressure rollers, second shaft means interconnecting said lower rollers, holding means engaging said second shaft means only and having an upwardly directed extension including a cylinder, plunger means slidably mounted in said cylinder toward and away from said first shaft means, spring means continuously urging said plunger toward said first shaft means, the front surface of said plunger being curved in substantial conformity with the curvature of said first shaft means, extension means connected to said holding means, and means adjacent said extension means and forming an abutment therefor to prevent said holding means from turning on said second shaft means in the direction of the working movement of said lower rollers.
  • said holding means is formed by a resilient yoke having a first arm with a jaw-like end engaging said second groove from below and having a second arm with a jaw-like end engaging said first groove from above, said arms continuously urging said pressure rollers and said lower roller means toward each other.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Rolls And Other Rotary Bodies (AREA)
US2762082D 1952-01-23 Loading device for pressure rollers Expired - Lifetime US2762082A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE311766X 1952-01-23
DEU1522A DE1012229B (de) 1952-01-23 1952-01-23 Federbelastung fuer Zwillingsoberwalzen an Spinnereimaschinen-Streckwerken

Publications (1)

Publication Number Publication Date
US2762082A true US2762082A (en) 1956-09-11

Family

ID=25793034

Family Applications (1)

Application Number Title Priority Date Filing Date
US2762082D Expired - Lifetime US2762082A (en) 1952-01-23 Loading device for pressure rollers

Country Status (4)

Country Link
US (1) US2762082A (en, 2012)
BE (1) BE517026A (en, 2012)
CH (1) CH311766A (en, 2012)
DE (1) DE1012229B (en, 2012)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2900674A (en) * 1954-02-23 1959-08-25 Whitin Machine Works Pressure-applying means for drafting roll
US3906590A (en) * 1973-09-04 1975-09-23 Progressive Engineering Inc Weighting device for spinning frame drafting system

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1107369B (de) * 1956-12-18 1961-05-25 Spinn Und Zwirnereimaschb Karl Lagerung fuer Galettenwellen an Verstreckvorrichtungen fuer synthetische Faeden
US3056175A (en) * 1958-06-21 1962-10-02 Fusaroli Goffredo Pressure applying devices for the upper rollers of fibre drafting apparatus
DE1228175B (de) * 1959-02-21 1966-11-03 Skf Kugellagerfabriken Gmbh Streckwerk fuer Spinnereimaschinen
DE1107570B (de) 1958-12-06 1961-05-25 Skf Kugellagerfabriken Gmbh Streckwerk fuer Spinnereimaschinen

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB286899A (en, 2012) *
US765715A (en) * 1904-04-05 1904-07-26 Lowell Machine Shop Machine for preparing and spinning worsted.
GB148668A (en) * 1919-05-24 1920-08-05 Frederick William Constantine Improvements in or appertaining to devices for transmitting pressure to the drawing or feed rollers in spinning and like machines
US1710275A (en) * 1927-04-01 1929-04-23 Prince-Smith William Roller of spinning, twisting, roving, and analogous machines
US2153118A (en) * 1937-02-26 1939-04-04 Harris Textile Machinery Corp Tensioning device for drafting machines
GB576902A (en) * 1944-05-26 1946-04-25 Howard & Bullough Ltd Improved roller-weighing means for textile drawing, spinning and analogous machinery
US2631335A (en) * 1947-01-04 1953-03-17 Platt Brothers & Co Ltd Calendar delivery mechanism of carding engines
US2675586A (en) * 1949-05-29 1954-04-20 Suddeutsche Spindelwerke Zinse Drawing frame for spinning machines

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT20999B (de) * 1904-05-02 1905-08-10 James Barbour Streckwerk für Spinnereimaschinen mit unter Federwickung stehender Zugstange.
DE489912C (de) * 1927-04-01 1930-01-24 David Waterhouse Belastungsvorrichtung fuer die Lieferwalzen von Streckwerken an Spinn-, Zwirn- und aehnlichen Textilmaschinen
GB375322A (en) * 1931-03-20 1932-06-20 Edwin James Rouse Improvements in means for applying pressure to the drawing-rollers of spinning, doubling, twisting and like machines
DE704055C (de) * 1939-01-05 1941-03-21 Ver Kugellagerfabriken Akt Ges reckwerken
BE458786A (en, 2012) * 1944-05-26
CH250341A (de) * 1946-05-17 1947-08-31 Schweizerische Leinen Ind Ag Belastungsvorrichtung für Druckwalzen an Streckwerken, insbesondere solchen von Nass-Spinnmaschinen.
GB654151A (en) * 1946-10-22 1951-06-06 Edward Hayward Jackson Jr Improvements in apparatus for spinning textile fibres

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB286899A (en, 2012) *
US765715A (en) * 1904-04-05 1904-07-26 Lowell Machine Shop Machine for preparing and spinning worsted.
GB148668A (en) * 1919-05-24 1920-08-05 Frederick William Constantine Improvements in or appertaining to devices for transmitting pressure to the drawing or feed rollers in spinning and like machines
US1710275A (en) * 1927-04-01 1929-04-23 Prince-Smith William Roller of spinning, twisting, roving, and analogous machines
US2153118A (en) * 1937-02-26 1939-04-04 Harris Textile Machinery Corp Tensioning device for drafting machines
GB576902A (en) * 1944-05-26 1946-04-25 Howard & Bullough Ltd Improved roller-weighing means for textile drawing, spinning and analogous machinery
US2631335A (en) * 1947-01-04 1953-03-17 Platt Brothers & Co Ltd Calendar delivery mechanism of carding engines
US2675586A (en) * 1949-05-29 1954-04-20 Suddeutsche Spindelwerke Zinse Drawing frame for spinning machines

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2900674A (en) * 1954-02-23 1959-08-25 Whitin Machine Works Pressure-applying means for drafting roll
US3906590A (en) * 1973-09-04 1975-09-23 Progressive Engineering Inc Weighting device for spinning frame drafting system

Also Published As

Publication number Publication date
DE1012229B (de) 1957-07-11
BE517026A (en, 2012)
CH311766A (de) 1955-12-15

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