US3429010A - Drawing device for textile fiber preparation - Google Patents

Drawing device for textile fiber preparation Download PDF

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Publication number
US3429010A
US3429010A US479504A US3429010DA US3429010A US 3429010 A US3429010 A US 3429010A US 479504 A US479504 A US 479504A US 3429010D A US3429010D A US 3429010DA US 3429010 A US3429010 A US 3429010A
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Prior art keywords
tensor
lever
roller
textile fiber
drawing device
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Expired - Lifetime
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US479504A
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English (en)
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Goffredo Fusaroli
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Individual
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Individual
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Publication date
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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
    • D01H5/26—Drafting machines or arrangements without fallers or like pinned bars in which fibres are controlled by one or more endless aprons

Definitions

  • This invention relates to drawing devices for spinning machines and for machines preparatory to spinning, and more particularly to drawing devices in which the material is caused to pass between a pair of aprons or belts each of which is maintained taut between a rotatable roller and a fixed tensor on which it runs with a small radius of curvature.
  • the two aprons are pressed against one another in correspondence with their respective rollers to grip the material therebetween, whereas, in correspondence with the tensor, they are maintained spaced apart a certain distance from one another to guide and accompany the material towards the following pair of drawing rollers, while permitting, the progressive mutual sliding of the fibers which defines the desired thinning of the material.
  • the two tensors are integrally affixed to one another thus forming a U-shaped component. If the tensors are separate members, one is afiixed to a supporting member carried by the swingable arm to which the pressing roller is connected. In order to vary the distance between the two tensors, in the first situation the U-shaped component is replaced, and in the second a shim block is replaced by means of which the supporting member rests upon the lower tensor.
  • An object of this invention is to provide a device for allowing a quick variation of the distance between the tensors, and thus between the two aprons, even during operation of the machine, without releasing the pressure between the pressing roller and the drawing roller thereby eliminating the necessity of having spare parts in storage.
  • At least one of the tensors (or other equivalent means) for holding either apron taut is rotatable about an axis which does not cross the front edge of the tensor and is rigidly connected to a member rotatable about a pin (coincident with said axis, or not), and means are adapted to lock such member and thus the tensor, in any of a plurality of positions angularly spaced apart about the respective pivot and axis.
  • FIGURE 1 is a side view of a device in which the pressure roller and the drawing roller are fastened to a single supporting member.
  • FIGURE la is a front elevational view of the device illustrated in FIG. 1.
  • FIGURE 2 is a side view of a device in which the pressing roller is fastened to a swingable arm.
  • FIGURES .3 and 4 are views taken along lines xx and yy, of FIGURES 1 and 2 respectively.
  • FIGURE 5 is a fragmentary enlarged view of the front portion of the device shown in FIG. 1.
  • FIGURE 6 is a side view of a device in which the upper tensor is affixed to one end of a lever pivoted at its other end to the upper side.
  • FIGURE 7 is a fragmentary view of a device in which the side carrying the upper tensor can be deformed by the action of a cam, and
  • FIGURE 8 is a side view of a device in which the distance between the two tensors can be varied by manipulating a lever fulcrumed to the side of the upper tensor and abutting with either end the structure of the lower tensor.
  • FIGURES 1 and 3 shows the device in the case in which a single supporting member consisting of sides 4-4, suitably connected together supports tensors 3 and 5 about which aprons or belts 2 and 14 are respectively trained.
  • the apron 2 is trained about a drawing roller 1, and the apron 14 about a pressing roller 7 held by the sides 4 and 4'.
  • An arm 8 is pressed on the roller 7 by springs or weight in a known manner.
  • the fulcrum P (FIGURES la and 5) is constituted by a pin P projecting outwardly from each side in proximity to the end of the slot in the side wall which receives the tensor bar 5 and a recess P" in the lever 11 in which the pin P is positioned.
  • the lever 11 enables the tensor 5 to be rotated about the fulcrum P and the tensor 5 can be set in any desired angular position by inserting the free end of the lever 11 in one of the notches of a toothed segment 12 integral with the side 4.
  • a similar arrangement can also be provided for the side 4'.
  • the net distance d, between the tensor bars 3 and 5, which defines the gap between the aprons 2 and 14 is thus a function of the position of the lever 11.
  • the distance d can become the distance d by shifting the lever indicated by the dotdash lines 11 to the position 11. This adjustment can be quickly and conveniently performed even with the machine in operation. This is particularly efficacious in that it is possible to immediately check from the material coming from one apron pair which is the optimum gap d thus conforming to such setting the levers 11 for all of the drawing sets of the machine.
  • FIGURES 2 and 4 illustrate a modification of the device in which the pressing roller 7 is affixed to a swingable arm 9 so as to be displaced therewith as indicated by the dot-dash lines in FIG. 2.
  • the tensor 5 is carried by an element 6 suitably attached to the shaft of the roller 7 so that the apron 14 also moves with the displacement of the arm 9.
  • the roller 7 bears on the drawing roller 1 via the aprons 1-4 and while the element 6 rests upon the tensor 3 through a fixed projection 10.
  • the tensor 5 is pivoted at P to the two sides of the component 6 and can be displaced by rotation of the lever 11 which can be held in different positions by locating the end of the lever in the desired notch in the toothed segment 12 as previously described.
  • FIGURE 6 shows a further manner for displacing the tensor 5.
  • the tensor is aifixed to one end of a lever 17 which is pivoted at P at its other end to a side 18 similar to the side 4 in FIG. 1 or a component 6 as in FIG. 2.
  • the lever 17 can be locked in one of a plurality of different angular positions by locating the lever between the dowels or teeth 13 projecting from the side 18 side.
  • the movement of the tensor 5, in FIG. 6, is not rotation about an axis passing therethrough, but rotation about the pivot point P located outside of the tensor and this axis under certain conditions can also be the axis of the pressing roller 7.
  • each side 18 is resiliently deformable by the provision of a slot 19 and the deformation thereof is caused by the cam 20 coacting with a wall of the slot.
  • FIGURE 8 illustrates further a modification in which the tensor 5 is affixed to the component 6 with the projection 10, by which the component 6 rests on the tensor 3 being pivoted at P and eccentric with respect to P.
  • the projection is integral with the lever 11 which can be held in different positions to vary the net distance d between the tensors 3 and 5 as hereinabove described in connection with FIG. 1.
  • a drawing device for textile fiber preparation comprising a supporting frame, a first tensor having front and rear edges and a first rotatable roller supporting said supporting frame, a first endless apron trained about said tensor and roller, a second tensor having front and rear edges and a second rotatable roller associated with said supporting frame in spaced relation to said first tensor and roller, a second endless apron trained about said second tensor and roller with the fiber being prepared passing between said first and second aprons, a lever rigidly connected at one end with one of said tensors, means pivotally connecting said lever and one tensor to said supporting frame for rotation about an axis which does not pass through the front edge of said one tensor, and means on said supporting frame defining a plurality of angularly spaced apart projections, said lever being selectively movable into the space between projections for locking said lever and one tensor in position relative to the other tensor for changing the distance between said first

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
US479504A 1964-08-19 1965-08-13 Drawing device for textile fiber preparation Expired - Lifetime US3429010A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT1800164 1964-08-19

Publications (1)

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US3429010A true US3429010A (en) 1969-02-25

Family

ID=11151640

Family Applications (1)

Application Number Title Priority Date Filing Date
US479504A Expired - Lifetime US3429010A (en) 1964-08-19 1965-08-13 Drawing device for textile fiber preparation

Country Status (6)

Country Link
US (1) US3429010A (fr)
BE (1) BE668491A (fr)
CH (1) CH422605A (fr)
DE (1) DE1510634B1 (fr)
FR (1) FR1444552A (fr)
GB (1) GB1102333A (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3795946A (en) * 1972-08-17 1974-03-12 Deering Milliken Res Corp Drafting apparatus
US3806991A (en) * 1971-09-09 1974-04-30 Deering Milliken Res Corp Drafting apparatus
CN102618978A (zh) * 2012-04-18 2012-08-01 常德市恒天纺织机械有限公司 一种杠杆分压双辊张力上销
WO2014018645A1 (fr) 2012-07-25 2014-01-30 R. J. Reynolds Tobacco Company Ruban de fibre mixte destiné à être utilisé dans la fabrication d'éléments de filtre de cigarette
US10524500B2 (en) 2016-06-10 2020-01-07 R.J. Reynolds Tobacco Company Staple fiber blend for use in the manufacture of cigarette filter elements

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB745127A (fr) *
US1092631A (en) * 1912-05-25 1914-04-07 Fernando Casablancas Spinning-frame.
US2675585A (en) * 1947-03-31 1954-04-20 Rieter Joh Jacob & Cie Ag Drawing apparatus for textile fiber preparation
GB718926A (en) * 1952-06-03 1954-11-24 Tmm Research Ltd Improvements in the drafting apparatus of textile spinning machines
DE949995C (de) * 1954-02-23 1956-09-27 Zinser Textilmaschinen Gmbh Doppelriemchen-Streckwerk fuer Spinnmaschinen
US3235914A (en) * 1961-09-12 1966-02-22 Takeiri Scisakusho Kk Filament drafting device for a spinning machine
US3243854A (en) * 1961-09-30 1966-04-05 Takeiri Seisakusho Kk Apron band retainer for a filament drafting device

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB309905A (fr) * 1928-04-17 1929-07-11
GB470446A (fr) * 1935-12-13 1937-08-16
FR943215A (fr) * 1949-02-02
US2777168A (en) * 1951-08-09 1957-01-15 Noguera
DE971846C (de) * 1951-12-01 1959-04-02 Skf Kugellagerfabriken Gmbh Hochschwenkbarer und in der Arbeitsstellung verriegelbarer Oberwalzentrag- und -belastungsarm fuer Zweiriemchenstreckwerke an Spinnmaschinen
GB734388A (en) * 1953-06-01 1955-07-27 Casablancas High Draft Co Ltd Improvements in or relating to drafting apparatus for textile fibres
DE1098417B (de) * 1957-11-15 1961-01-26 Skf Kugellagerfabriken Gmbh Spannvorrichtung fuer ein in einem Riemchenkaefig mit starrer Wendeschiene gefuehrtes Oberriemchen fuer Spinnereimaschinen-Streckwerke
GB952175A (en) * 1960-04-01 1964-03-11 Arthur Abbey Improvements in or relating to textile drafting machines

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB745127A (fr) *
US1092631A (en) * 1912-05-25 1914-04-07 Fernando Casablancas Spinning-frame.
US2675585A (en) * 1947-03-31 1954-04-20 Rieter Joh Jacob & Cie Ag Drawing apparatus for textile fiber preparation
GB718926A (en) * 1952-06-03 1954-11-24 Tmm Research Ltd Improvements in the drafting apparatus of textile spinning machines
DE949995C (de) * 1954-02-23 1956-09-27 Zinser Textilmaschinen Gmbh Doppelriemchen-Streckwerk fuer Spinnmaschinen
US3235914A (en) * 1961-09-12 1966-02-22 Takeiri Scisakusho Kk Filament drafting device for a spinning machine
US3243854A (en) * 1961-09-30 1966-04-05 Takeiri Seisakusho Kk Apron band retainer for a filament drafting device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3806991A (en) * 1971-09-09 1974-04-30 Deering Milliken Res Corp Drafting apparatus
US3795946A (en) * 1972-08-17 1974-03-12 Deering Milliken Res Corp Drafting apparatus
CN102618978A (zh) * 2012-04-18 2012-08-01 常德市恒天纺织机械有限公司 一种杠杆分压双辊张力上销
WO2014018645A1 (fr) 2012-07-25 2014-01-30 R. J. Reynolds Tobacco Company Ruban de fibre mixte destiné à être utilisé dans la fabrication d'éléments de filtre de cigarette
US9179709B2 (en) 2012-07-25 2015-11-10 R. J. Reynolds Tobacco Company Mixed fiber sliver for use in the manufacture of cigarette filter elements
US9833017B2 (en) 2012-07-25 2017-12-05 R.J. Reynolds Tobacco Company Mixed fiber sliver for use in the manufacture of cigarette filter elements
US10524500B2 (en) 2016-06-10 2020-01-07 R.J. Reynolds Tobacco Company Staple fiber blend for use in the manufacture of cigarette filter elements

Also Published As

Publication number Publication date
CH422605A (it) 1966-10-15
DE1510634B1 (de) 1970-09-03
BE668491A (fr) 1965-12-16
GB1102333A (fr) 1968-02-07
FR1444552A (fr) 1966-05-23

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