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US3535868A - Apparatus for changing the twist of a yarn in a spinning machine - Google Patents

Apparatus for changing the twist of a yarn in a spinning machine Download PDF

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Publication number
US3535868A
US3535868A US660022A US3535868DA US3535868A US 3535868 A US3535868 A US 3535868A US 660022 A US660022 A US 660022A US 3535868D A US3535868D A US 3535868DA US 3535868 A US3535868 A US 3535868A
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US
United States
Prior art keywords
yarn
feed
spinning
fibers
twist
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
US660022A
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English (en)
Inventor
Adolf Schiltknecht
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Maschinenfabrik Rieter AG
Original Assignee
Maschinenfabrik Rieter AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Maschinenfabrik Rieter AG filed Critical Maschinenfabrik Rieter AG
Application granted granted Critical
Publication of US3535868A publication Critical patent/US3535868A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
    • D01H4/04—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques imparting twist by contact of fibres with a running surface
    • D01H4/08—Rotor spinning, i.e. the running surface being provided by a rotor

Definitions

  • the feed channel is positioned above the spinning cell to direct the fibers tangentially into the fiber collecting area of the cell in either of two opposite directions.
  • the spinning cell is rotated in either of two opposite directions so that depending on the direction of rotation and the feed direction of the fibers which is selected in view of the direction of rotation the fibers can be twisted into a yarn having'an S twist or a Z twist.
  • This invention relates to an apparatus for changing the twist of a yarn in a spinning machine. More particularly, this invention relates to an apparatus for spinning yarn of an S or a Z twist.
  • the present invention provides an apparatus which overcomes the above disadvantages in spinning fibers into yarn having an S or a Z twist.
  • the apparatus includes a spinning cell which is rotatable in either of two opposite directions for twisting a yarn in either an S or a Z twist.
  • the apparatus includes a feed means wherein the fibers are fed from an individual fiber supply source tangentially into a fiber collecting area of the spinning cell through one of two feed channels depending upon the direction of rotation of the spinning cell.
  • the feed channels are mounted in an asymmetric relation over the spinning cell to cooperate with the fiber supply source.
  • the selection of the feed channel for feeding the fibers to the spinning cell is determined by the direction of rotation of the spinning cell so that the desired yarn twist can be obtained without changing or replacing any parts of the apparatus.
  • FIG. 1 illustrates a cross-sectional view of a conventional rotatable spinning cell of a spinning machine
  • FIG. 2 illustrates a view taken on line 11-11 of FIG. 1;
  • FIG. 3 illustrates a plan view of an apparatus of the invention
  • FIG. 4 illustrates a view taken on line IVIV of FIG. 3;
  • FIG. 5 illustrates a plan view of a modified apparatus of the invention
  • FIG. 6 illustrates a plan view of another modified apparatus of the invention
  • FIG. 7 illustrates a view taken on line VIIVII of FIG. 6;
  • FIG. 8 illustrates a plan view of another embodiment of the invention.
  • FIG. 9 illustrates a fragmentary plan view of still another embodiment of the invention.
  • FIG. 10 illustrates a view taken on line X-X of FIG. 9.
  • a spinning cell 2 is rotatably mounted within a casing 1 as by means of a ball bearing assembly and driven through a belt.
  • the fiber material 3 in the form of fibers is supplied from a drawing mechanism 4 and fed through a feed tube 5 tangentially into the spinning cell 2 during rotation of the cell 2.
  • a peripheral fiber 6 is formed in the spinning cell which, after being twisted, is pulled centrally through an exchange tube 8 in the form of a yarn 7. Where the spinning cell 2 is rotated clockwise as viewed, an S twist yarn is produced.
  • the apparatus of the invention includes a lid 10 which is pivotally mounted in slidable relation on casing 12' over a spinning cell 13 similar to that described above.
  • the lid 10 has a pair of feed channels 11, 12 which are arranged tangentially of the spinning cell 13 so as to feed the fibers into the cell 13.
  • the channels 11, 12 are also disposed in operative relation to the drawing mechanism 4' so as to selectively receive the fibers passing from the drawing mechanism 4.
  • the left channel 12 is shown in a feed position adjacent to the drawing mechanism 4 to receive the fibers While the right channel 11 is shown in a rest position so as not to receive the fibers.
  • the lid 10 has a pair of arcuately spaced integral stops 14, 15 which project outwardly of the lid 10 to abut a suitable stop bar 50 mounted on the casing 12 in the projected path of the stops.
  • the lid 10 has a pin 51 secured in the top surface radially outwardly from the the lid axis which slidably mates in a slot in a reciprocally mounted bar 16 above the lid 10.
  • the direction of rotation of the spinning cell 13 is reversed in a conventional manner, for example, through a suitable belt and drive mechanism (not shown).
  • the lid 10 is pivoted about its axis by means of a longitudinal movement of the bar 16 through c) an angle a on casing 12' from one of the stops 14, to the other.
  • the lid 10 is pivoted in a counterclockwise direction so that the right feed channel 11 assumes a position adjacent to the drawing mechanism 4' as indicated by the dot and dash lines. The right feed channel 11 is then in position to receive and convey the fibers into the spinning cell 13 in tangetial relation.
  • the bar 16 is connected to other suceeding spinning stations provided with lids 10 along the spinning machine in a similar manner so as to actuate all the spinning stations at the same time.
  • a modified lid 17 is positioned in fixed relation above a casing 18 for the spinning cell (not shown).
  • the lid 17 includes a left feed channel 19 and a right feed channel 20, each of which is tangentially disposed in relation to the spinning cell in casing 18 and held in fixed relation to the fiber supply station 21.
  • an adapter 22 is interposed between the feed channels 19, 20 and draw ing mechanism in shiftable relation to the feed channels 19, 20.
  • the adapter 22 has a spaced pair of short channels 23, 24 disposed therein which are selectively positioned in alignment with a respective feed channel 19, 20.
  • the adapter 22 is mounted on a control bar 26, which extends along the spinning machine and which is provided with a pair of spaced limit stops '25 projecting into the plane of a stop 25'.
  • control bar 26 is moved longitudinally to move the adapter 22 at each spinning station as above so that the channel 24 becomes aligned with feed channel 20 at the fiber supply station 21.
  • the fiber is then directed into feed channel 20 instead of feed channel 19.
  • the direction of rotation of the spinning cell (not shown) is reversed.
  • an adapter 27 of segmental or crescent shade having a single short channel 28 is slidably mounted on an arcuate guide 29 secured with casing 30.
  • the short channel 28 is positioned in the adapter 27 to be in alignment with either of the tangentially directed feed channels 19, 20 of the lid 17.
  • a pin 52 is secure in the top surface of the adapter 27 and passed into an enlarged slot 53 of a reciprocal bar 54 mounted above the guide 29.
  • the pin 52 is forced to move through a limited arcuate path so as to slide the adapter 27 along the guide 29.
  • movement of the short channel 28 from one feed channel to the other along with a reversal in the direction of rotation of the spinning cell 13 in the casing 30 causes a reversed change in the twist in the yarn produced.
  • a stationary lid 31 is provided with a pair of feed channels which are tangentially disposed with respect to a spinning cell as above.
  • the feed channels 32, 33 each have an intermediate portion formed by a flexible sleeve 34 and a muzzle at the free end.
  • the muzzles are both passed through slots of a reciprocal mounted track 35 so as to be displaced upon movement of the track 35 about the fiber supply station of the drawing mechanism 4.
  • the track 35 is provided with suitable limit stops, as above, to cooperate with a suitable stop, as above, so that a respective one of the feed channels 32, 33 is brought into position at the fiber supply station upon abutment of a limit stop with the stop.
  • a lid 36 having a single feed channel 37 is positioned over a spinning cell in fixed relation to the casing.
  • the feed channel 37 is disposed obliquely in a downwardly inclined manner to the lid 36 and extends into a muzzle funnel having crescent shaped contact surfaces 38, 39.
  • Each of the crescent shaped contact surfaces 38, 39 blends into the circular cylindrical surface 40 so that the transitional end portions are approximately tangential to the direction of rotation of the spinning cell.
  • a movable deflector 41 is inserted within the funnel between the contact surfaces 38, 39 and is formed with lateral surfaces 42, 43 which are complementarily shaped to mate with the contact surfaces 38, 39 of the funnel in an alternative manner.
  • a guide slot 44 of circular arcuate contour is cut into the lid 36 above the deflector 41 and a connection piece 45 provided on the deflector 41 is slidably positioned in the guide slot 44.
  • a bolt 46 is secured to the connection piece 45 to project above the lid 36 into the slot of a stationary reciprocally mounted bar 56, similar to that described above.
  • the direction of rotation of the spinning cell is reversed and the bar 56 is shifted so as to displace the deflector 41 via bolt 46 from, for example, the solidly drawn position at the left of the centerline of the feed channel 37 as in FIG. 9 to the dotted line position at the right of the feed channel centerline.
  • the fibers are fed into the spinning cell in an opposite direction.
  • An apparatus for spinning S and Z twist yarns comprising a rotatable spinning cell having a fiber collecting area therein for twisting received fibers into yarn,
  • a feed means mounted over said spinning cell for asymmetrically feeding fibers into said fiber collecting area in a selective one of two opposite directions, and including selection means for selectively directing fibers from a common fiber supply source into one of said two opposite directions, and
  • feed means includes a pair of feed channels mounted over said spinning cell in symmetric relation to the axis of rotation of said spinning cell and in asymmetric relation to said fiber collecting area and said selection means is disposed outside said feed channels to direct the fibers selectively into one of said feed channels.
  • feed means includes a lid pivotally mounted over said spinning cell and each said feed channel is secured in said lid tangentially to said fiber collecting area.
  • said selection means includes a pin secured to said lid and projecting therefrom and a reciprocally mounted bar disposed above said lid and having a slot therein receiving said pin whereby upon longitudinal movement of said bar said pin is moved about the axis of said lid to pivot said lid to move one of said feed channels out of alignment with said common fiber supply source while moving the other of said feed channels into alignment with said common fiber supply source.
  • said feed means includes a lid and said feed channels have openings thereto disposed on opposite symmetric sides of said lid.
  • said lid is stationary with respect to the axis of said spinning cell and said selection means includes a movably mounted adapter between the fiber supply source and said feed channels for selectively passing fibers therethrough into one of said feed channels and means for moving said adapter between a pair of positions.
  • said adapter has a pair of spaced channels therein for the passage of fibers, said spaced channels being spaced a greater distance apart than the spacing between the mouths of said feed channels whereby movement of said adapter to one of said positions aligns one of said spaced channels with the fiber supply source to permit feeding of fibers into one of said feed channels while a reciprocal movement of said adapter to the other of said positions aligns the other of said spaced channels with the fiber supply source to permit feeding of fibers into the other of said feed channels.
  • said adapter has a single channel therethrough for the passage of fibers and is pivotally mounted to selectively align said single channel with one of said feed channels.
  • feed channels are flexible and said adapter has a pair of slots therein, each of said feed channels being received in a respective slot whereby movement of said adapter moves said flexible feed channels selectively into the path of fibers.
  • said feed means includes a single feed channel having a pair of opposite crescent shaped surfaces at one end thereof directed substantially tangentially into said fiber collecting area and said selection means includes a movably mounted deflector disposed between said pair of surfaces, said deflector having a pair of opposite lateral surfaces complementary to said crescent shaped surfaces and being positioned with one of said lateral surfaces in contact with an opposed one of said crescent shaped surfaces, and means for moving said deflector alternately between said crescent shaped surfaces to permit feeding of fibers into said fiber collecting area in opposite directions.
  • said feed means includes a lid over said spinning cell and at least one feed channel through said lid disposed obliquely to said spinning cell in a downwardly inclined direction.
  • An apparatus for spinning S and Z twist yarn comprising a rotatable spinning cell having a fiber collecting area therein for twisting fibers into yarn,

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
US660022A 1966-08-24 1967-08-11 Apparatus for changing the twist of a yarn in a spinning machine Expired - Lifetime US3535868A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT804066A AT281642B (de) 1966-08-24 1966-08-24 Vorrichtung zum Spinnen eines S- oder Z-Drehung aufweisenden Garnes

Publications (1)

Publication Number Publication Date
US3535868A true US3535868A (en) 1970-10-27

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ID=3601928

Family Applications (1)

Application Number Title Priority Date Filing Date
US660022A Expired - Lifetime US3535868A (en) 1966-08-24 1967-08-11 Apparatus for changing the twist of a yarn in a spinning machine

Country Status (12)

Country Link
US (1) US3535868A (de)
JP (1) JPS5114616B1 (de)
AT (1) AT281642B (de)
BE (1) BE703056A (de)
BR (1) BR6792374D0 (de)
CH (1) CH466767A (de)
CS (1) CS158207B2 (de)
DE (1) DE1685905C3 (de)
ES (1) ES343946A1 (de)
GB (1) GB1202056A (de)
NL (1) NL6709941A (de)
SE (1) SE331810B (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3651632A (en) * 1969-04-09 1972-03-28 Tmm Research Ltd Open-end spinning devices
US3685270A (en) * 1969-05-05 1972-08-22 Skf Kugellagerfabriken Gmbh System of spinning yarn
US3898787A (en) * 1972-05-12 1975-08-12 Krupp Gmbh Housing for open-end spinning turbine
US3998040A (en) * 1974-04-03 1976-12-21 Vyzkumny Ustav Bavlnarsky Method of and apparatus for spinning yarns from staple fibers by an open-end spinning technique
US5367868A (en) * 1992-08-17 1994-11-29 Rieter Ingolstadt Process and device for open-end spinning

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CS152571B1 (de) * 1970-05-06 1974-02-22
DE2161619C3 (de) * 1971-12-11 1982-05-27 Stahlecker, Fritz, 7347 Bad Überkingen Offenend-Spinneinrichtung
DE2167308C3 (de) * 1971-12-11 1985-03-21 Stahlecker, Fritz, 7347 Bad Überkingen Offenend-Spinneinrichtung
EP0926275B1 (de) * 1997-12-18 2003-09-10 W. SCHLAFHORST AG & CO. Offenend-Spinnvorrichtung zum Herstellen von Z- oder S-gedrehten Garnen
LU506071B1 (de) * 2024-01-10 2025-07-10 Saurer Spinning Solutions Gmbh & Co Kg Offenend-Spinnvorrichtung

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3121306A (en) * 1961-11-09 1964-02-18 Vyzk Ustav Barlnarsky Method and apparatus for the continuous manufacture of yarn from textile staple fibers
US3126697A (en) * 1964-03-31 Apparatus for continuous spinning of fibrous textile materials
US3132465A (en) * 1963-02-04 1964-05-12 Deering Milliken Res Corp Textile processing arrangement and method for spinning fibers into yarn

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3126697A (en) * 1964-03-31 Apparatus for continuous spinning of fibrous textile materials
US3121306A (en) * 1961-11-09 1964-02-18 Vyzk Ustav Barlnarsky Method and apparatus for the continuous manufacture of yarn from textile staple fibers
US3132465A (en) * 1963-02-04 1964-05-12 Deering Milliken Res Corp Textile processing arrangement and method for spinning fibers into yarn

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3651632A (en) * 1969-04-09 1972-03-28 Tmm Research Ltd Open-end spinning devices
US3685270A (en) * 1969-05-05 1972-08-22 Skf Kugellagerfabriken Gmbh System of spinning yarn
US3898787A (en) * 1972-05-12 1975-08-12 Krupp Gmbh Housing for open-end spinning turbine
US3998040A (en) * 1974-04-03 1976-12-21 Vyzkumny Ustav Bavlnarsky Method of and apparatus for spinning yarns from staple fibers by an open-end spinning technique
US5367868A (en) * 1992-08-17 1994-11-29 Rieter Ingolstadt Process and device for open-end spinning

Also Published As

Publication number Publication date
BR6792374D0 (pt) 1973-01-11
DE1685905B2 (de) 1978-09-21
CH466767A (de) 1968-12-15
GB1202056A (en) 1970-08-12
JPS5114616B1 (de) 1976-05-11
BE703056A (de) 1968-01-15
DE1685905A1 (de) 1971-08-26
SE331810B (de) 1971-01-11
ES343946A1 (es) 1968-10-01
AT281642B (de) 1970-05-25
DE1685905C3 (de) 1979-05-17
NL6709941A (de) 1968-02-26
CS158207B2 (de) 1974-10-15

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