US3756007A - Spinning device for producing a filament from a fiber strip - Google Patents

Spinning device for producing a filament from a fiber strip Download PDF

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Publication number
US3756007A
US3756007A US00153195A US3756007DA US3756007A US 3756007 A US3756007 A US 3756007A US 00153195 A US00153195 A US 00153195A US 3756007D A US3756007D A US 3756007DA US 3756007 A US3756007 A US 3756007A
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United States
Prior art keywords
spinning
rotor
fiber
housing
needle roller
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Expired - Lifetime
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US00153195A
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English (en)
Inventor
G Bartling
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SKF GmbH
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SKF GmbH
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Publication date
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Publication of US3756007A publication Critical patent/US3756007A/en
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    • 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

  • ABSTRACT This invention relates to a spinning device for spinning a filament yarn from a fiber strip.
  • such spinning devices comprise a spinning rotor defining a spinning chamber.
  • a fiber singling-out device or needle roller, combined with a fiber strip delivery system, comprising a high speed roller is provided for opening up a fed fiber strip into its individual fibers.
  • the separated individual fibers are fed by an air current, over a fiber feed channel, to the spinning chamber, and the spun filament or yarn is drawn off through a yarn delivery channel.
  • the fiber singling-out device is disposed in the housing holding the rotor behind the rotor and coaxial to same.
  • the fiber singling-out device is mounted on an independent bearing member, in front of the spinning rotor and with its axis vertical thereto.
  • the aim of the present invention is to create a spinning device of the type referred to, which combines the advantages of the above described constructions but avoids their disadvantages.
  • this problem is solved by installing the fiber singling-out device in the housing, so that it feeds the separated fibers at an angle, not exceeding 40 to the axis of the spinning rotor, and by locating the needle roller of the fiber singling-out device, as seen from the side, so that it extends at least partially in front and beyond the open end of the spinning rotor.
  • This construction makes it possible to accommodate the spinning rotor and the singling-out device within a very small space inside the housing, and enable the fiber feeding channel to be made correspondingly short and almost straight, resulting in favorable flow conditions for fibre feeding.
  • the fibre singlingout device and the spinning rotor are disposed axially parallel to each other in the housing, while the needle roller of the fiber singling-out device, as seen from the side, is disosed in its entire axial extent, in front of the open end of the spinning rotor.
  • the spacial arrangement of the fibre singling-out device in regard to the spinning rotor may be optional, the essential feature is solely that the distance between the axes of both rotating members be maintained as small as feasible with regard to the fiber, in order to keep the fibre feeding channel as short as possible.
  • the spinning rotor and the fiber singling-out device are arranged in the housing in a common vertical plane, whereby the spinning rotor is superposed above the fibre singlingout device,
  • the drive of the spinning rotor and the fibre singlingout device may be obtained by various means.
  • a driving belt may be used for power transmission.
  • the arrangement of the fibre singling-out device below the spinning rotor makes it advantageous to effect the drive of both of the components by a joint tangential friction belt, whereby, for example, the upper line of the belt passes over the journal of the spinning rotor shaft and the lower line of the belt over the pulley of the fibre singling-out roller shaft.
  • the housing has both a hole for the spinning rotor as well as for the fiber singling-out device.
  • the housing is equipped in known manner with a detachable housing cover. Even with such a construction, an effective cleaning of the fibre singling-out device on its perihperhy would hardly or only be possible if it could be removed from its axis or taken out of the housing to expose it for manipulation.
  • An advantageous effect of the present invention occurs by forming the chamber or space in which the spinning rotor and also the needle roller is disposed in the housing cover, so that upon removal of the housing cover the periphery of the fibre singling-out needle roller inevitably becomes freely ac-- cessible.
  • This form of construction has the further advantage that the fibre feeding channel in its totality may then be arranged exclusively in the cover. It is comparatively easy to incorporate the channel in the in cover.
  • the present construction in a simple manner, makes it possible to alter the spinning device in such a manner that the form and positioning of the fibre feed channel can always be adapted to the existing conditions, by arranging the fibre feeding channel and/or the yarn doffing channel in a seperate and interchangeable insert part inside the cover wall.
  • the fiber strip feed assembly disposed before the fibre singling-out device is best arranged in such a manner that at least one fiber strip feed roller is installed in the housing axially parallel to the needle roller of the fiber singling-out roller. It is preferrable to arrange the axis of the fiber strip feed roller substantially in the same plane as the axes of the spinning rotor and the fibre singling-out device.
  • the spinning device can be constructed so that the spinning rotor and the fibre singling-out device can be jointly stopper brought to a standstill when cleaning becomes necessary without actually stopping the driving belt that powers them.
  • This can be done in known manner in that one stationary brake jaw each is provided in the space between the driving journal of the spinning rotor and that of the fibre singling-out device respectively, and that the housing is hinged about a stationary axis in such a way that when pivoted the driving journals leave the driving belt and positively contact the respective brake jaws.
  • FIG. 1 is a longitudinal cross section of a spinning device according to the present invention mounted in operating position on the frame of a spinning machine
  • FIG. 2 is a front elevational view of the apparatus of FIG. 1, partly broken away,
  • FIG. 3 is a view according to FIG. 1 with the spinning device in standstill position
  • FIG. 4 is a longitudinal section through a second embodiment of the housing cover of the spinning device.
  • the spinning unit shows an assembly with a housing 10 disposed between two parallel frame rails 12 and 14 of the frame of a spinning machine.
  • the housing is greater in height than in width, being essentially of ashlar rectangular form.
  • a horizontal bore 16 is formed in the upper half of the housing 10 and is adapted to receive a spinning rotor assembly 18.
  • the rotor assembly comprises a cup shaped rotor defining a spinning chamber 20 facing outwardly of the front side of the bore.
  • the rotor is mounted at the end of a bearing shaft 22 journalled in a housing 26 secured within the bore 16 by a resilient sleeve 24.
  • the sleeve and the bearing housing extend beyond the rear face of the housing and the bearing shaft 22 is formed with a drive shaft end or journal 28.
  • a fiber singling-out device e.g., a needle or picking roller.
  • the needle roller is rotatably mounted on a bearing shaft 32 journalled in a bearing housing 34 secured in housing 10.
  • the bearing shaft 32 likewise extends beyond the rear back of the housing and carries a belt pulley 36 of comparatively large diameter.
  • the construction of these members is such that the axial length of belt pulley 36 and that of journal 28 are equal and that both lie in a common plane.
  • the axes 18 of the spinning rotor and 30 of the fibre singling-out roller lie in a common vertical plane aa.
  • the needle roller of the fiber singlingout device 30 extends in forwardly of the spinning rotor so that its entrie axial extent is disposed in front of the spinning rotor.
  • the fiber singling-out roller 30 is located in a horizontal bore 38 which is in communication with the spinning chamber 20 of spinning rotor 18 via a communicating fiber feed channel 40.
  • the above described arrangement of spinning rotor and fibre singling-out roller makes it possible to construct the fibre feed channel 40 comparatively short and almost straight or so slightly curved upwards in the direction of spinning chamber 20, that an advantageous delivery of the singled-out fibers occurs.
  • an overall construction of the device is achieved that is remarkable for its small dimensions.
  • the needle roller of the fiber singling-out device 30 lies at least in part axially in front of the spinning rotor so that a line between the two makes an angle of approx.
  • the fiber feed channel could be I disposed entirely straight between the two, whereby the fibers can be fed directly from the needle roller to the chamber 20 of the spinning roller as indicated in FIG.2.
  • This angle may be increased to a maximum of if desired, and the needle roller may be made to lie whole in front of the spinning chamber if desired.
  • the vertical distance between the needle roller and the spinning rotor is preferable maintained as small as possible, however.
  • Housing 10 is closed on its front side by a detachable cover 41, which together with the front surface 42 of the housing defines the housing space 38 which accommodates the needle roller fiber singling-out device 30 as well as a fiber feed channel 40.
  • a latch or locking member 44 is provided, extending away from its rear surface and having a locking shoulder that engages within a suitable hole 46 formed in housing 10.
  • the locking member 44 coacts with a locking nose 48 which in turn is secured to spring lever 50.
  • the locked cover can be released by lifting this spring lever to radially move the locking nose outwards with respect to recess 46, whereby the latch or locking member 44 is released.
  • the cover is, in addition, pivotable secured at its lower end by a pivot axis 49.
  • the machine frame has a stop pin 51 for the cover.
  • cover 41 coaxial to the spinning rotor a yarn doffing tube 52 having a fiber shield 54 integral with its inner end that projects into the spinning chamber 20 of spinning rotor 18 in known manner.
  • the spinning rotor 18 forms a radial fan-wheel blower, i.e., it has a multiplicity of radial channels 56 in its facial end that are in communication with an air delivery channel 58 leading out of the housing.
  • FIG. 2 there is also interposed in front of the needle roller of the fiber singling-out device a delivery assembly comprising a fiber strip or sliver feed roller designated by 62.
  • This feed roller is also preferably disposed with its axis of rotation in the vertical plane a-a underneath the needle roller of the fiber out device.
  • the feed roller is provided with a pivotal pressure shoe 68 having a pivot axis counteracting the effect of pressure spring 66, by means of which the fiber strip 70 entering the housing from below is pressed against the periphery of the feed roller.
  • the feed roller 62 is also axially parallel to the spinning rotor and the needle roller of the fiber singling-out device in housing 10 and is powered via a magnetic clutch 72 by drive gear 74 meshing with drive shaft 76.
  • the electromagnetic clutch 72 is controlled by a not shown yarn breakage monitor, which supervises yarn running.
  • a tangential friction belt jointly drives the spinning rotor 18 and the fiber singlingout device 30.
  • the upper run 78 of the belt runs along the journal 28 of spinning rotor shaft 22 and the lower run 80 of said belt runs along the periphery of belt pulley 36 of the fiber singling-out device.
  • the spinning unit in order to clean the spinning chamber 20 and the needle roller of the fiber singling-out device the spinning unit can be pivoted in known manner about a pivot axle 82 located at the upper end of the housing.
  • the drive of the spinning rotor, the needle roller and the fiber strip feed roller are all simultaneously interrupted in that the components 28,36,74 come free from the runs 78 and B0 of the tangential friction belt and of the driving shaft 76, due to the clockwise pivotal motion of housing 10.
  • the journal 28 of shaft 22 as well as the belt pulley 36 of the needle roller are provided with brake jaws 84 and 86, respectively arranged in a correspondingly inclined plane.
  • the positioning of the brake jaws is selected so that, in the pivotted position of housing 10, the journal 28 and the belt pulley 36 contact the corresponding brake jaw, as a result of which the spinning rotor and the fiber singling-out device are rapidly brought to a stop.
  • housing 10 can be pivotted about a lower rotray axis or pivot point instead of the upper pivotal axis 82; in this case the arrangement of the tangential friction belt and of the brake jaws 84,86 and drive shaft 76 must be correspondingly modified to ensure that an interruption of the drive and the breaking of spinning rotor and fiber singling-out roller occur.
  • the housing is locked in its position shown in FlG.ll on the frame of the spinning machine by means of latch hook seen in detail in FlG.3.
  • the latch hook 90 is pivotable about a hinge 92 by counteracting the effect of spring 94.
  • a torsion spring 96 having an end 98 is disposed about hinge 92.
  • the hinge 92 has another end fixed to the hook 90 so that when the cover 41 is opened and pivoted to strike the spring end 98, the spring twists, resulting in moving the latch hook 90 into release position whereby the housing is released and is caused to pivot upwardly about axle 82.
  • the detachable housing cover shown in FIG.4 differs from that described above in that both the fiber feeding channel 40 as well as the fibre doffing tube 52 are disposed in an insert 100 which is interchangeable in the housing cover.
  • This construction permits a modification of the fibre feeding channel in form and arrangement, in that suitable inserts 100 can be interchanged dependent upon the fiber used and yarn formed.
  • Apparatus for spinning yarn from a fiber strip comprising a housing, a spring rotor mounted at the end of a shaft journalled in said housing to rotate about an axis, said rotor defining a spinning chamber, means for separating fiber strips into individual fibers and duct means extending between said separating means and said spinning chamber for delivering said fibers to said spinning chamber in an air stream, said separating means comprising a needle roller mounted at the end of a shaftjournal in said housing to rotate about an axis offset from said rotor axis and axially situated at least in part in front of said spinning chamber, the line between said needle roller and said spinning rotor being at an angle less than 40 with respect to the axis of said spinning rotor.
  • the apparatus according to claim 1 including a cover pivotally mounted on said housing defining therewith a space for said spinning rotor and for said needle roller, said duct extending therebetween being formed in said cover.
  • the apparatus according to claim 1 including a fiber strip feed assembly comprising a fiber strip feed roller coacting with a presser shoe mounted in said housing axially parallel to the needle roller and disposed in a plane common to the axes of the spinning rotor and needle roller.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
US00153195A 1970-06-18 1971-06-15 Spinning device for producing a filament from a fiber strip Expired - Lifetime US3756007A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2029878A DE2029878C3 (de) 1970-06-18 1970-06-18 Offen-End-Spinneinheit
DE2029818 1970-06-18

Publications (1)

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US3756007A true US3756007A (en) 1973-09-04

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US00153195A Expired - Lifetime US3756007A (en) 1970-06-18 1971-06-15 Spinning device for producing a filament from a fiber strip

Country Status (5)

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US (1) US3756007A (enrdf_load_stackoverflow)
CH (1) CH527291A (enrdf_load_stackoverflow)
DE (1) DE2029878C3 (enrdf_load_stackoverflow)
FR (1) FR2095335B1 (enrdf_load_stackoverflow)
GB (1) GB1348690A (enrdf_load_stackoverflow)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3841075A (en) * 1972-04-15 1974-10-15 Krupp Gmbh Opening-up drum for an open end spinning device
US3874154A (en) * 1971-12-11 1975-04-01 William Stahlecker Gmbh Fixedly disposed feeding and opening device for a spinning unit of an open-end spinning machine
US3879926A (en) * 1972-08-05 1975-04-29 Skf Kugellagerfabriken Gmbh Method and apparatus for controlling the rejoining of thread in an open ended spinning machine
DE2449692A1 (de) * 1973-10-24 1975-04-30 Vyzk Ustav Bavlnarsky Spinneinheit einer offen-end-spinnmaschine
US3922840A (en) * 1973-10-31 1975-12-02 Toyoda Automatic Loom Works Rotor spindle driving part in a spinning machine
US3972171A (en) * 1971-06-21 1976-08-03 Schubert & Salzer Maschinenfabrik Aktiengesellschaft Housing construction for open end spinning machines
US3990224A (en) * 1975-07-17 1976-11-09 Zinser Textilmaschinen Gmbh Open end spinning machine
US4059947A (en) * 1974-10-30 1977-11-29 Fritz Stahlecker Open-end spinning unit
US4069655A (en) * 1975-12-05 1978-01-24 Fritz Stahlecker Open end spinning assembly with an opener roll
US4098065A (en) * 1975-05-30 1978-07-04 Fritz Stahlecker Feeding and opening apparatus for a open-end spinning machine
US4112659A (en) * 1975-12-06 1978-09-12 Fritz Stahlecker Open end spinning unit with a braking device
US4122655A (en) * 1976-05-18 1978-10-31 Platt Saco Lowell Limited Housing and mounting means for open end spinners

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2200686C3 (de) * 1972-01-07 1986-01-02 Schubert & Salzer Maschinenfabrik Ag, 8070 Ingolstadt Offenend-Spinnmaschine
CS165067B1 (enrdf_load_stackoverflow) * 1972-10-12 1975-11-28
DE2261147C3 (de) * 1972-12-14 1984-05-24 Stahlecker, Fritz, 7347 Bad Überkingen Offenend-Spinnvorrichtung
DE2434045C2 (de) * 1974-07-16 1983-06-01 Skf Kugellagerfabriken Gmbh, 8720 Schweinfurt Offen-End-Spinnmaschine
DE2524093C2 (de) * 1975-05-30 1986-04-24 Fritz 7347 Bad Überkingen Stahlecker Zuführ- und Auflöseeinrichtung für ein Spinnaggregat einer Offenend-Spinnmaschine
DE2614182C2 (de) * 1976-04-02 1985-03-28 Stahlecker, Fritz, 7347 Bad Überkingen Zuführeinrichtung für Offenend- Spinnaggregate
DE3511953A1 (de) * 1985-04-02 1986-10-09 Schubert & Salzer Maschinenfabrik Ag, 8070 Ingolstadt Offenend-spinnmaschine

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3324642A (en) * 1964-01-08 1967-06-13 Meimberg Julius Process and apparatus for spinning staple fibers
US3455097A (en) * 1967-06-01 1969-07-15 Vyrkumny Ustav Bavlnarsky Apparatus for spinning of fibrous material
US3481129A (en) * 1966-11-08 1969-12-02 Tmm Research Ltd Open end spinning apparatus
US3511045A (en) * 1968-01-22 1970-05-12 Elitex Zavody Textilniho Spinning apparatus having a servicing position
US3626681A (en) * 1968-08-08 1971-12-14 Toyoda Automatic Loom Works Ringless spinning machine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3324642A (en) * 1964-01-08 1967-06-13 Meimberg Julius Process and apparatus for spinning staple fibers
US3481129A (en) * 1966-11-08 1969-12-02 Tmm Research Ltd Open end spinning apparatus
US3455097A (en) * 1967-06-01 1969-07-15 Vyrkumny Ustav Bavlnarsky Apparatus for spinning of fibrous material
US3511045A (en) * 1968-01-22 1970-05-12 Elitex Zavody Textilniho Spinning apparatus having a servicing position
US3626681A (en) * 1968-08-08 1971-12-14 Toyoda Automatic Loom Works Ringless spinning machine

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3972171A (en) * 1971-06-21 1976-08-03 Schubert & Salzer Maschinenfabrik Aktiengesellschaft Housing construction for open end spinning machines
US3874154A (en) * 1971-12-11 1975-04-01 William Stahlecker Gmbh Fixedly disposed feeding and opening device for a spinning unit of an open-end spinning machine
US3841075A (en) * 1972-04-15 1974-10-15 Krupp Gmbh Opening-up drum for an open end spinning device
US3879926A (en) * 1972-08-05 1975-04-29 Skf Kugellagerfabriken Gmbh Method and apparatus for controlling the rejoining of thread in an open ended spinning machine
DE2449692A1 (de) * 1973-10-24 1975-04-30 Vyzk Ustav Bavlnarsky Spinneinheit einer offen-end-spinnmaschine
US3922840A (en) * 1973-10-31 1975-12-02 Toyoda Automatic Loom Works Rotor spindle driving part in a spinning machine
US4059947A (en) * 1974-10-30 1977-11-29 Fritz Stahlecker Open-end spinning unit
US4098065A (en) * 1975-05-30 1978-07-04 Fritz Stahlecker Feeding and opening apparatus for a open-end spinning machine
US3990224A (en) * 1975-07-17 1976-11-09 Zinser Textilmaschinen Gmbh Open end spinning machine
US4069655A (en) * 1975-12-05 1978-01-24 Fritz Stahlecker Open end spinning assembly with an opener roll
US4112659A (en) * 1975-12-06 1978-09-12 Fritz Stahlecker Open end spinning unit with a braking device
US4122655A (en) * 1976-05-18 1978-10-31 Platt Saco Lowell Limited Housing and mounting means for open end spinners

Also Published As

Publication number Publication date
GB1348690A (en) 1974-03-20
DE2029878B2 (de) 1976-11-04
DE2029878C3 (de) 1980-02-14
DE2029878A1 (de) 1971-12-30
FR2095335B1 (enrdf_load_stackoverflow) 1975-04-18
CH527291A (de) 1972-08-31
FR2095335A1 (enrdf_load_stackoverflow) 1972-02-11

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