US1983413A - Device for twisting textile filamentary material - Google Patents

Device for twisting textile filamentary material Download PDF

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Publication number
US1983413A
US1983413A US694299A US69429933A US1983413A US 1983413 A US1983413 A US 1983413A US 694299 A US694299 A US 694299A US 69429933 A US69429933 A US 69429933A US 1983413 A US1983413 A US 1983413A
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United States
Prior art keywords
yarn
sub
units
unit
guide
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Expired - Lifetime
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US694299A
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English (en)
Inventor
Spagnolo Sesto
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Pirelli and C SpA
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Pirelli SpA
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
    • F04B1/0404—Details or component parts
    • F04B1/0408—Pistons
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
    • D01H1/10—Spinning or twisting machines in which the product is wound-up continuously for imparting multiple twist, e.g. two-for-one twisting
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B7/00—Details of, or auxiliary devices incorporated in, rope- or cable-making machines; Auxiliary apparatus associated with such machines
    • D07B7/02—Machine details; Auxiliary devices
    • D07B7/08—Alarms or stop motions responsive to exhaustion or breakage of filamentary material fed from supply reels or bobbins

Definitions

  • This invention relates to devices for twisting I and doubling cotton and like royings, slivers,
  • twisting units of this particular class (hereinafter referred to as twisting units of the class specified) and comprises an improved form of unit characterized by enhanced simplicity of construction and effi- .ciency of operation.
  • the invention involves the use of the wellknown principle of twisting yarn, according to which the yarn is drawn off a bobbin, cop, cheese or the like (hereinafter referred to for brevitysimplyas a bobbin) on to a rotary flier disposed opposite one end of the bobbin andcoaxially therewith, being received upon this flier at a leading-on point) at or near the rotational axis of the flier and being guided upon the flier to a point thereon at or near the radially outer ex-'- tremity of the flier, from whence the yarn, as the flier rotates, balloons around the bobbin to the radially outer extremity of a second yarn guide disposed eoamally with the first (the flier) 0pposite to the other end of the bobbin and rotatable in unison with the flier, from which extremity in turn the yarn passes upon the second guide to a point thereon at or near the rotational
  • twisting units of the loop type Twisting units involving the above principle of operation, therefore, will be hereinafter referred to as twisting units of the loop type.
  • a twisting unit of the class smcifled comprises a plurality of individual sub-units of the loop type incorporated together in multiple relation in a single compositej unit, in which the sub-units are disposed parallel to one another, the bobbins of the sub-units being stationary therein and the sublli, Milan, Ital Application October 19, 1933, Serial No.
  • the stationary feed bobbins or the like are conicalended with the end of narrower diameter disposed'towards the leading-on point for the yarn on the flier.
  • this form of feed bobbin or the like that the yarn more readily pays off from the stationary bobbin to said leading-on point than from a parallel-sided $31, with consequent lessening of strain on the
  • the various parts set forth above comprising the improved twisting unit of the invention shall be constructed in an overhung form in which the bobbins, the fliers and the yarn guides of the sub-units are all sup ported from one end only of the sub-unit and the assemblage of sub-units, the primary'flier and the primary yarn guide are also all supported from one end only of the composite unit.
  • Figure 1 is a central longitudinal section through the composite twisting unit according to the invention.
  • Figure 2 is a transverse section through the unit on the section line 2-2 of Figure 1.
  • the composite unit shown comprises three sub-units mounted as a collective assemblage upon an overhung shaft 1, itself supported upon bearings 2 and belt driven through the intermediary of a pulley 3 fast upon the shaft.
  • Each sub-unit consists of a stationary bobbin carrier 4 mounted, through the intermediary of an anti-friction rotational bearing, upon a rotatable spindle 5, the carrier 4 being adapted to receive upon it a conical bobbin, cop or cheese 6 which is stationary with the carrier.
  • Adjacent the base end of the cheese 6, is a circular dish 7 fast upon spindle 5 and therefore rotatable with it, and a double-ended arm 8 rotatably mounted in a bearing 9, the axis of which is coincident with that of spindle 5, the bearing 9 being incorporated in the outer extremity of a U-shaped bracket 10 swingably hanging at its inner end, along with the bobbin carrier 4, with which it is fast, from the spindle 5.
  • the bracket 10 is weighted with a counterpoise weight 11 which operates yieldingly to control the bracket always to the lowermost position shown and at the same time to hold the bobbin carrier 4 and the cheese 6 thereon against rotation in the unit.
  • the dish '7 and arm 8 constitute yarn guides, and the guide 8 is arranged to be rotated in unison with guide 7 by the pull of the yarn between the two guides, and with this in view the guide 8 is, as shown, of very light proportions.
  • Each sub-unit comprises, moreover, the usual tensioner 12 for the yarn and guide ring 13. It may also include any of the usual self-stopping devices. Such are not shown.
  • the several spindles 5 of the assemblage of sub-units are rotationally mounted in a triangular hollow carrier 151, which, in turn, is mounted upon one end of a sleeve 15 surrounding the overhanging portion of driving shaft 1 and, in turn, mounted thereon through the intermediary of anti-friction bearings 16, 1'? at the two ends respectively of the sleeve.
  • This sleeve 15 is weighted against rotation upon shaft 1 by a counterpoise weight 18 depending from the inner end of the sleeve, the magnitude of this weight being such as to retain the whole assem-w blage of sub-units upon the shaft 1 yieldingly against rotation thereon.
  • the spindles 5 of the sub-units are drivingly connected with the shaft 1 through the intermediary of pinions 19, fast upon the spindles 5 and intermeshing with a central toothed Wheel 20 fast upon the outer extremity of the shaft 1.
  • the composite unit further comprises a circul ar dish 21 fast upon the shaft so as to be rotatable with it, and a double-ended arm 22 rotatably mounted upon a bearing 23 carried upon a bracket 24 afiixed to the carrier 14.
  • the dish 21 and arm 22 constitute, as in the case of the dish '7 and arm 8 of the sub-units, yarn guides and the guide 22 is arranged to be rotated by the dish 21 through the pull of the yarn extending between the two guides.
  • the guides 8 of the sub-units are formed at the endswith eyes 25 through either of which the yarn may be threaded, and each dish '7 is" formed with an entry passage 26 for the yarn, this passage being situated at the periphery of the dish and being of such a form as to guide the yarn with the least degree of obstruction to its movement relatively to the dish, and an issue passage 27 extending radially of the dish through the central boss thereof and leading to an axialpassage 28 provided for the yarn through the spindle 5.
  • the arm 22 is formed with an eye 29 at each end and the dish 21 has in its periphery a diametrically opposed pair of entry passages 30 for the yarn and extending radially through its central boss an issue passage 31 for the yarn, said issue passage communicating with an axial passage 32 for the yarn in the shaft 1,
  • the yarn from the cheese 6 of each sub-unit is fed to the flier 8 of the sub-unit via the tensioner 12, from which the yarn passes through an axial passage in thebearing 9, thenradially outward to the eye 25, then back to the entry passage 26 of guide '7, from thence inwardly to the issue passage 27, along the axial passage 28 in spindle 5, thence to a doubling eye 33 and tensioner 34 (both of these elements being supported on the aforesaid bracket 24), from the tensioner 34 through an axial passage in bearing 23, from the outlet end of this passage through an eye 35 formed in guide 22 through eye 29 of said guide, across to eye 30 of guide 21, inwardly through issue passage 31 of said guide 19, along axial passage 32 of shaft 1 and finally on to a take-off roller 36.
  • each sub-unit comprises, in addition to the parts already enumerated, a circular guard ring 37 mounted upon the bracket 10, and the yarn passing between the sub-unit guides '7, 8 balloons between this ring 3'7 and a larger ring 38 completely encircling the assemblage of sub-units and intervening between the ballooning yarn on the sub-units and that passing between the yarn guides 22, 21, the said ring 38 being mounted upon an arm 39 projecting axially of the unit from the lower end of the counterpoise weight 18.
  • the gear ratio of the pinions 19 to the central toothed wheel 20 is 1:2, and consequently, for each revolution of the driving shaft 1, the spindles 5 rotate through two revolutions, and therefore, per revolution of said driving shaft, the yarn from each bobbin of the composite unit receives four revolutions of twist from the time it leaves the bobbin to the time it reaches the doubling eye 33 and in the result each yarn receives six revolutions of twist per revolution of the driving shaft between the bobbin and the take-off element 36, four of these revolutions of twist being applied prior to doubling and two after.
  • the gear ratio of the spindles 5 to the wheel 20 may be any other desired ratio than 1:2, with corresponding variation of the number of revolutions of twist applied to the individual yarns.
  • a twisting unit of the class specified a plurality of individual sub-units of the loop type herein specified incorporated together in multiple driven primary yarn guide disposed opposite to the assemblage of sub-units at one end thereof with its axis parallel to the rotational axes of these'units and a primary rotary flier disposed co-ra'x'ially with the primary yarn guide oppo-' site the said assemblage of sub-units at the other end thereof, the multiple-twisted yarns from the sub-units being led on to the primary flier at a point thereon near the rotational axis thereof, and from the outer extremity of this flier, ballooning around the assemblage of subunits, to the radially outer extremity of the primary' yarn guide, thence to a point on this guide near the rotational axis thereof and finally on to a take-off element for the doubled and twisted I product.
  • the parts set forth in claim 1 in an overhung form in which the bobbins, the fliers and the yarn guide of the loop type sub-units are all supported from one end only of the sub-unit, and the assemblage of sub-units, the primary flier and the primary yam guide are also all supported from one end only of the composite unit, the fliers of the sub-units are rotationally mounted upon the outer end of a weighted U-shaped bracket accommodating the bobbin within its bend and freely mounted at the other end upon a spindle which is rotational in bearings in the stationary carrier, the said carrier is mounted through the intermediary of anti-friction bearings upon an overhung driving shaft and is weighted to hang stationary thereon and said shaft is drivingly connected to the spindle of the sub-units through the intermediary of a toothed wheel fast on the extremity of the shaft and in mesh with pinions on the spindles.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
US694299A 1932-07-26 1933-10-19 Device for twisting textile filamentary material Expired - Lifetime US1983413A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR406801X 1932-07-26
IT404915X 1932-10-25

Publications (1)

Publication Number Publication Date
US1983413A true US1983413A (en) 1934-12-04

Family

ID=31889650

Family Applications (1)

Application Number Title Priority Date Filing Date
US694299A Expired - Lifetime US1983413A (en) 1932-07-26 1933-10-19 Device for twisting textile filamentary material

Country Status (7)

Country Link
US (1) US1983413A (fr)
BE (1) BE396358A (fr)
DE (2) DE623476C (fr)
ES (1) ES130601A1 (fr)
FR (2) FR762556A (fr)
GB (2) GB406801A (fr)
NL (1) NL35948C (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2445721A (en) * 1947-07-29 1948-07-20 Fletcher Works Inc Twisting machine
US2463887A (en) * 1946-05-03 1949-03-08 Dunlop Tire & Rubber Corp Machine for doubling or twisting yarns, threads, and the like
US2546977A (en) * 1948-02-12 1951-04-03 Johnson Steel & Wire Company I Manufacture of stranded wire cables
US2605602A (en) * 1952-08-05 Koella
US2633692A (en) * 1948-11-17 1953-04-07 William T Maccreadie Wire rope-making machine
US2671305A (en) * 1949-08-12 1954-03-09 Deering Milliken Res Trust Yarn twisting and tensioning device
US2731786A (en) * 1954-07-01 1956-01-24 klein
US4182104A (en) * 1978-09-11 1980-01-08 United States Steel Corporation Double twist wire buncher
US4262479A (en) * 1978-01-09 1981-04-21 Slovenska Vedecko-Technicka Spolocnost, Dom Techniky Multitwist spindle
US20120291682A1 (en) * 2010-01-28 2012-11-22 Coats Plc Method of feeding thread to a sewing machine and sewing machine thread feed

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2593984A (en) * 1948-02-12 1952-04-22 Johnson Steel & Wire Company I Tension control and stop motion for stranded wire cable making machines
DE902945C (de) * 1951-03-13 1954-01-28 Phrix Werke Ag Fadenspannungsregler fuer Doppeldraht-Zwirnspindeln
GB1094162A (en) * 1963-02-14 1967-12-06 Mackie & Sons Ltd J Improvements in and relating to a method and apparatus for producing shorn twisted textile yarn

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2605602A (en) * 1952-08-05 Koella
US2463887A (en) * 1946-05-03 1949-03-08 Dunlop Tire & Rubber Corp Machine for doubling or twisting yarns, threads, and the like
US2445721A (en) * 1947-07-29 1948-07-20 Fletcher Works Inc Twisting machine
US2546977A (en) * 1948-02-12 1951-04-03 Johnson Steel & Wire Company I Manufacture of stranded wire cables
US2633692A (en) * 1948-11-17 1953-04-07 William T Maccreadie Wire rope-making machine
US2671305A (en) * 1949-08-12 1954-03-09 Deering Milliken Res Trust Yarn twisting and tensioning device
US2731786A (en) * 1954-07-01 1956-01-24 klein
US4262479A (en) * 1978-01-09 1981-04-21 Slovenska Vedecko-Technicka Spolocnost, Dom Techniky Multitwist spindle
US4182104A (en) * 1978-09-11 1980-01-08 United States Steel Corporation Double twist wire buncher
US20120291682A1 (en) * 2010-01-28 2012-11-22 Coats Plc Method of feeding thread to a sewing machine and sewing machine thread feed

Also Published As

Publication number Publication date
ES130601A1 (es) 1934-02-16
NL35948C (fr)
BE396358A (fr)
FR762556A (fr) 1934-04-13
GB406801A (en) 1934-03-08
DE623573C (fr)
FR754298A (fr) 1933-11-02
GB404915A (en) 1934-01-25
DE623476C (fr)

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