US2896269A - Multi-drawing frame particularly adapted for use on high-speed spinning frames - Google Patents

Multi-drawing frame particularly adapted for use on high-speed spinning frames Download PDF

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Publication number
US2896269A
US2896269A US404342A US40434254A US2896269A US 2896269 A US2896269 A US 2896269A US 404342 A US404342 A US 404342A US 40434254 A US40434254 A US 40434254A US 2896269 A US2896269 A US 2896269A
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Prior art keywords
sliver
feed
rollers
draw
slivers
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Expired - Lifetime
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US404342A
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English (en)
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Gardella Adriano
Gardella Costantino
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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

  • the drawing frames of known spinning frames comprise usually a simple draw head constituted of a single inletor feed-roller pair and of a delivery roller pair spaced from the feed roller pair, whereby between these roller pairs guide-and blending means, usually comprising roller and/or belt pairs, are provided.
  • High-speed spinning frames are also known, provided with Single draw heads permitting of obtaining in a single drawing step drawing ratios up to 1:50 and over, thus feeding into the drawing frame a corresponding heavy sliver.
  • the high attenuation of a sliver in a single step presents however the drawback that the sliver often breaks during drawing and even if it does not break, the attenuated sliver fed into the drawing frame is highly irregular.
  • pre-attenuated slivers are fed, and in order to obtain highly regular preattenuated slivers, these are obtained by a doubling this term being employed in the meaning of multiplying by any number the slivers after their attenuation, so that the weakest spots of one of the slivers come to be juxtaposed to the thickest spots of at least another sliver, thus giving, as a final result, an attenuation sliver of substantially equal thickness throughout its length.
  • the doubling was effected by feeding a number of slivers in parallel to a set of roller pairs arranged in series and running at increasing peripheral speeds and then to unite and blend the attenuated slivers together in correspondence of, or shortly before, the delivery end of the drawing frame.
  • the sliver delivered was not sufficiently homogeneous and furthermore the arrangement was not adapted for receiving heavy card slivers and delivering highly attenuated very homogeneous slivers directly to the spinning frame.
  • the multi-drawing frame eliminates the above drawbacks and comprises a number of draw head sets arranged in parallel-series and decreasing in number from the first set towards the last draw head, which is single, whereby each draw head comprises in a known manner a feed roller pair, a delivery roller pair and possibly means for guiding and blending the slivers being drawn therebetween, the whole being so arranged that a plurality of slivers, each fed to a separate parallel draw head of the first set, by being drawn first separately in the first drawing step and subsequently doubled and drawn in doubled condition at least once, in a subsequent step or in subsequent successive steps, are delivered by the single draw head performing the last doubling and drawing step at the end of the multi-drawing frame, in the form of a highly attenuated homogeneous sliver adapted to be directly fed to the spinning frame.
  • Fig. 1 shows in elevation part of a high-speed spinning frame provided with a multi-drawing frame according to the invention.
  • Fig. 2 shows in perspective view another embodiment B arranged in fan formation on the frame 1 and converging towards a single final draw head A.
  • Each single draw head A and B comprises a pair of feedand sliverholding rollers 2, 3 and 102, 103 and a pair of sliver delivery rollers 4, 5 and 104, 105.
  • One of the rollers of each pair is positively drive'n, while the other one is idle.
  • a single common pair of delivery rollers 104, 105 is provided, one of said rollers being driven at such a speed as to run with its periphery at a speed that is a multiple of that of the feed rollers.
  • means for controlling the slivers during the drawing are arranged, which, in the example as shown, comprise a pair of endless belts 6 and 7 running respectively on rollers 106, 206 and 107, 207.
  • the construction of said draw heads is alike and is better shown in the enlcrged View of draw head A illustrated in Fig. 3.
  • the plane passing through the axes of the upper rollers 106 and 107 is perpendicular to the path of the sliver being drawn while the plane passing through the axes of lower rollers 206 and 207 is inclined with respect to the said sliver path.
  • the two contacting runs of belts 6 and 7 are pressed against each other by suitable means and include between them the drawn sliver, which they guide and in part brake and blend.
  • said pressing means comprise a leaf spring 8 for each belt run, having a bent end portion attached to the rigid part 9 of the frame, while its opposite end is free to swing towards or away from the sliver-compressing belt runs.
  • a fixed suitably shaped sliver guide 10, inserted between the delivery ends of belts 6 and 7 and the delivery roller pair 4, 5 and 104, 105, provides for a further sliver control.
  • roller 2 is operatively connected to roller 106 by means of gear pair 302, 306.
  • the four primary draw heads B are fed in parallel each with like heavy slivers N1, N2, N3, N4 which are drawn by draw units B independently to a like intermediate size.
  • the said four pro-drawn slivers are subsequently fed up, superposed, into the roller pair 104, 105 and form a single sliver N which in its turn is passed through the draw head A arranged in series to all four draw heads B and from which it is drawn to the required size and comes out of the drawing frame as a highly attenu- 3 ated sliver N which, by being delivered at a speed of the order of the feed speed of the spinning unit is directly fed to the tubular inlet thread guide 11 thereof.
  • theslivers drawn in the primary draw heads B are adjusted to .a drawing ratio of 1:20 and if draw head A is adjusted to a drawing ratio of 1:30, assuming that it is desired to obtain a thread weighing 0.4 gr. to the metre, it is sufiicient to feed into the spinning frame four slivers N1, N2, N3, N4 weighing each 60 gr. to the metre, which is in the order of the weight of the slivers as they may be obtained directly from a carding machine, and which therefore may be directly fed in the combined multi-drawing and spinning frame.
  • Different total drawing ratios may be obtained either- (I) by varying the drawing ratios at each drawing step and/or (2) by varying the number of primary slivers, and/or (3) by inserting one or even two intermediate drawing steps betweenthe first and the last drawing step.
  • FIG. 4 A drawing frame embodying this method is diagrammatically shown in Figure 4. This consists of a set of parallel primary draw heads B which deliver an equal number of drawn slivers to each of a set of parallel intermediate draw heads I which in their turn deliver the attenuated doubled slivers to a single final draw head A. In some particular cases it is also possible to arrange two intermediate sets of draw heads.
  • the draw heads arranged in parallel before the last draw head A are usually arranged as converging towards the subsequent roller pair which provide for the doubling of two or more slivers. If the parallel draw heads of each set are more than two, the arrangement along the corners of a pyramid is preferred, as shown in Figure 2 for the four primary draw heads B which converge towards a single final draw head A, whereby the roller pair 2, 3 constitutes the delivery roller pair of all primary units B and the holding roller pair of the final draw head A.
  • the delivery ends of the parallel draw heads are arranged at equal distance from the inlet or feed end of the doubling draw head of the subsequent step.
  • the improved multi-drawing frame may. undergo numerous changes in its construction and arrangement, which may take place even independently of a spinning frame.
  • the described belt guide arrangement has given the best results, it is to be understood that instead of these other blending and braking guide means may be adopted, such as sets of idle roller pairs or of gills.
  • a multi-drawing frame for textile fibre slivers in which the sliver drawing is effected in a number of successive drawing and doubling steps comprising a sliver drawing and doubling frame composed of a plurality of primary sliver-feed guides, a primary sliver-draw head for each of said sliver guides arranged to draw its slivers from one of the correspondingly positioned guides, each of said draw heads comprising a feed roller pair composed of two substantially contacting rollers providing a series of feed roller pairs arcuately arranged, means for driving said roller pairs with such a speed as to pull continuously said slivers at the desired feed speed, said primary feed roller pairs being arranged with their substantially contacting lines at substantially equal distances from a common point, a pair of contacting sliverdoubling and delivery rollers driven at a peripheral speed that is a multiple of said primary feed roller pairs arranged with their contacting line passing through said common point, endless belt feed means for guiding the sliver fed by the
  • a multi-drawing frame for textile fibre slivers in which the sliver drawing is effected in a number of successive drawing and doubling steps, and comprising a plurality of primary sliver-drawing and doubling frames, each of which comprises a plurality of primary sliverfeed guides, a primary sliver-draw head for each of said sliver guides, each 'of said draw heads comprising a feed roller pair composed of two substantially contacting rollers with each feed roller pair arranged to draw its sliver from one of the correspondingly positioned feed guides, means for driving said roller pairs with such a speed as 'to pull continuously said slivers at the desired feed speed which is equal for all the slivers, said primary feed roller pairs being arranged with a point of their substantially contacting lines at equal distances from a common point, a pair of contacting sliver-doubling and delivery rollers driven at a peripheral speed that is a multiple of said primary feed roller pairs, arranged with their contacting linepassing through said
  • a multi-drawing frame according to claim 1, in which between the feed and the delivery end of a number of said draw heads, and at least one of said draw heads performing one of said drawing steps comprises a pair of parallel endless belts each fitted on a roller pair, and having their inner runs pressed against each other by spring means.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
US404342A 1953-01-19 1954-01-15 Multi-drawing frame particularly adapted for use on high-speed spinning frames Expired - Lifetime US2896269A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT319183X 1953-01-19

Publications (1)

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US2896269A true US2896269A (en) 1959-07-28

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US (1) US2896269A (de)
BE (1) BE525798A (de)
CH (1) CH319183A (de)
DE (1) DE945739C (de)
FR (1) FR1095660A (de)
GB (1) GB754829A (de)
NL (1) NL84888C (de)

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2979782A (en) * 1954-12-22 1961-04-18 Bancroft Brillotex Internat S Machine and process for cleaning wool and other textile fibres
US3130454A (en) * 1960-04-19 1964-04-28 Mackie & Sons Ltd J Textile drafting apparatus
US3312050A (en) * 1963-11-19 1967-04-04 Casablancas High Draft Co Ltd Sliver feed and drafting means of a ring spinning frame
US3327356A (en) * 1963-09-03 1967-06-27 S O M Andreani & C Method of and apparatus for parallelizing and blending textile fibers
US3421186A (en) * 1965-04-27 1969-01-14 Alascienne De Const Mecaniques Mixing textile fibre slivers
US3495304A (en) * 1966-07-15 1970-02-17 Warner Swasey Co Method of blending fibers
US3789461A (en) * 1967-02-24 1974-02-05 Asahi Chemical Ind Apparatus for preparing spun yarn
US3918127A (en) * 1973-09-17 1975-11-11 Braschler & Cie Apparatus for blending rovings
US3946464A (en) * 1969-03-12 1976-03-30 Schubert & Salzer Maschinenfabrik Aktiengesellschaft Devices for handling unspun fibers
US4124921A (en) * 1977-04-25 1978-11-14 Hanseatischer Maschinenbau Gmbh Apparatus for consolidating textile fibrous webs by rubbing in a condenser
US4520532A (en) * 1982-10-11 1985-06-04 Rieter Machine Works Limited Drafting mechanism for spinning machines
US5220776A (en) * 1990-12-21 1993-06-22 Fritz Stahlecker Silver supply system for a spinning machine
US5226270A (en) * 1991-03-20 1993-07-13 Fritz Stahlecker Sliver feeding mechanism for a spinning machine
US5237806A (en) * 1991-03-29 1993-08-24 Spindelfabrik Sussen, Schurr, Stahlecker & Grill Gmbh Spinning machine having a belt conveyor with tension inserts
US5261219A (en) * 1991-05-11 1993-11-16 Fritz Stahlecker Spinning machine with a plurality of spinning stations having conveyer belts which convex slivers
US5265405A (en) * 1991-03-20 1993-11-30 Hans Stahlecker Spinning machine with a conveyor belt for conveying multiple slivers to respective separate spinning stations
US5267431A (en) * 1991-03-20 1993-12-07 Fritz Stahlecker Spinning machine having several spinning stations for the spinning of yarns from slivers
US5271214A (en) * 1991-03-20 1993-12-21 Fritz Stahlecker Multiple spinning unit spinning machine with overhead platforms supporting sliver cans and guiding devices for said sliver
US5279103A (en) * 1991-05-25 1994-01-18 Fritz Stahlecker Spinning machine having a delivery roller with a delivery speed less than the feeding speed of feeding rollers
US5311731A (en) * 1991-06-08 1994-05-17 Fritz Stahlecker Spinning machine
US5311730A (en) * 1991-07-18 1994-05-17 Fritz Stahlecker Spinning machine with drivable transport belts and stationary guiding belts for slivers
US5347804A (en) * 1991-04-26 1994-09-20 Fritz Stahlecker Spinning machine with drivable guiding belts for transporting sliver
US5752295A (en) * 1995-07-18 1998-05-19 Nisshinbo Industries Inc. 1 F blended yarn spinning method and blended yarn spinning frame
ITFI20120183A1 (it) * 2012-09-14 2014-03-15 Pafasystem S R L Apparecchiatura di preparazione alla filatura per la realizzazione di stoppini multicolori

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1118072B (de) * 1955-06-28 1961-11-23 Weller Maschf Heinz Doppelriemchenstreckwerk, insbesondere fuer lange Fasern
DE1043889B (de) * 1957-05-10 1958-11-13 Schiess Ag Doppelriemchen-Streckwerk fuer Spinnereimaschinen
DE1131126B (de) * 1959-09-02 1962-06-07 Ernst Toenniessen Doppelriemchenstreckwerk fuer Langstapel-Spinnmaschinen
BG41936A1 (en) * 1985-05-07 1987-09-15 Bakhov Apparatus for drawing
GB2280924B (en) * 1993-08-10 1997-02-26 Brian See Structural members

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB189816297A (en) * 1898-07-26 1899-06-24 Josef De Miniszewski Improvements in and connected with Means for Drawing Textile Fibres.
US1559281A (en) * 1924-05-10 1925-10-27 Rushton James Lever Drawing mechanism for ring-spinning frames and the like
US1905268A (en) * 1930-11-05 1933-04-25 Textile Patent & Process Co In Method of drafting textile fibers
GB514519A (en) * 1938-05-07 1939-11-10 Harry Varley Haworth Combined drawing and roving frame
US2410020A (en) * 1944-03-15 1946-10-29 Lathauwer Rene J De Manufacture of worsted roving
US2645822A (en) * 1946-12-10 1953-07-21 Uxbridge Worsted Company Inc Drafting textile fibers
US2728112A (en) * 1947-04-22 1955-12-27 Ralph C Berker Gill drawing frame

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE461417C (de) * 1926-12-23 1928-06-19 Rudolf Horsak Streckwerk fuer Baumwollspinnmaschinen

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB189816297A (en) * 1898-07-26 1899-06-24 Josef De Miniszewski Improvements in and connected with Means for Drawing Textile Fibres.
US1559281A (en) * 1924-05-10 1925-10-27 Rushton James Lever Drawing mechanism for ring-spinning frames and the like
US1905268A (en) * 1930-11-05 1933-04-25 Textile Patent & Process Co In Method of drafting textile fibers
GB514519A (en) * 1938-05-07 1939-11-10 Harry Varley Haworth Combined drawing and roving frame
US2410020A (en) * 1944-03-15 1946-10-29 Lathauwer Rene J De Manufacture of worsted roving
US2645822A (en) * 1946-12-10 1953-07-21 Uxbridge Worsted Company Inc Drafting textile fibers
US2728112A (en) * 1947-04-22 1955-12-27 Ralph C Berker Gill drawing frame

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2979782A (en) * 1954-12-22 1961-04-18 Bancroft Brillotex Internat S Machine and process for cleaning wool and other textile fibres
US3130454A (en) * 1960-04-19 1964-04-28 Mackie & Sons Ltd J Textile drafting apparatus
US3327356A (en) * 1963-09-03 1967-06-27 S O M Andreani & C Method of and apparatus for parallelizing and blending textile fibers
US3312050A (en) * 1963-11-19 1967-04-04 Casablancas High Draft Co Ltd Sliver feed and drafting means of a ring spinning frame
US3421186A (en) * 1965-04-27 1969-01-14 Alascienne De Const Mecaniques Mixing textile fibre slivers
US3495304A (en) * 1966-07-15 1970-02-17 Warner Swasey Co Method of blending fibers
US3789461A (en) * 1967-02-24 1974-02-05 Asahi Chemical Ind Apparatus for preparing spun yarn
US3946464A (en) * 1969-03-12 1976-03-30 Schubert & Salzer Maschinenfabrik Aktiengesellschaft Devices for handling unspun fibers
US3918127A (en) * 1973-09-17 1975-11-11 Braschler & Cie Apparatus for blending rovings
US4124921A (en) * 1977-04-25 1978-11-14 Hanseatischer Maschinenbau Gmbh Apparatus for consolidating textile fibrous webs by rubbing in a condenser
US4520532A (en) * 1982-10-11 1985-06-04 Rieter Machine Works Limited Drafting mechanism for spinning machines
US5220776A (en) * 1990-12-21 1993-06-22 Fritz Stahlecker Silver supply system for a spinning machine
US5226270A (en) * 1991-03-20 1993-07-13 Fritz Stahlecker Sliver feeding mechanism for a spinning machine
US5265405A (en) * 1991-03-20 1993-11-30 Hans Stahlecker Spinning machine with a conveyor belt for conveying multiple slivers to respective separate spinning stations
US5267431A (en) * 1991-03-20 1993-12-07 Fritz Stahlecker Spinning machine having several spinning stations for the spinning of yarns from slivers
US5271214A (en) * 1991-03-20 1993-12-21 Fritz Stahlecker Multiple spinning unit spinning machine with overhead platforms supporting sliver cans and guiding devices for said sliver
DE4109022C2 (de) * 1991-03-20 2000-11-02 Fritz Stahlecker Spinnmaschine zum Erspinnen von Garnen aus Faserbändern
US5237806A (en) * 1991-03-29 1993-08-24 Spindelfabrik Sussen, Schurr, Stahlecker & Grill Gmbh Spinning machine having a belt conveyor with tension inserts
US5347804A (en) * 1991-04-26 1994-09-20 Fritz Stahlecker Spinning machine with drivable guiding belts for transporting sliver
US5261219A (en) * 1991-05-11 1993-11-16 Fritz Stahlecker Spinning machine with a plurality of spinning stations having conveyer belts which convex slivers
US5279103A (en) * 1991-05-25 1994-01-18 Fritz Stahlecker Spinning machine having a delivery roller with a delivery speed less than the feeding speed of feeding rollers
US5311731A (en) * 1991-06-08 1994-05-17 Fritz Stahlecker Spinning machine
US5311730A (en) * 1991-07-18 1994-05-17 Fritz Stahlecker Spinning machine with drivable transport belts and stationary guiding belts for slivers
US5752295A (en) * 1995-07-18 1998-05-19 Nisshinbo Industries Inc. 1 F blended yarn spinning method and blended yarn spinning frame
ITFI20120183A1 (it) * 2012-09-14 2014-03-15 Pafasystem S R L Apparecchiatura di preparazione alla filatura per la realizzazione di stoppini multicolori

Also Published As

Publication number Publication date
CH319183A (de) 1957-02-15
GB754829A (en) 1956-08-15
DE945739C (de) 1956-07-12
FR1095660A (fr) 1955-06-06
NL84888C (de)
BE525798A (de)

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