US3693339A - Roller support means for roller twisting apparatus - Google Patents

Roller support means for roller twisting apparatus Download PDF

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Publication number
US3693339A
US3693339A US114018A US3693339DA US3693339A US 3693339 A US3693339 A US 3693339A US 114018 A US114018 A US 114018A US 3693339D A US3693339D A US 3693339DA US 3693339 A US3693339 A US 3693339A
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US
United States
Prior art keywords
roller
mandrel
rollers
pair
mandrels
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
US114018A
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English (en)
Inventor
David Ernest Henshaw
Lionel Stern
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Individual
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Individual
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Filing date
Publication date
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Publication of US3693339A publication Critical patent/US3693339A/en
Anticipated expiration legal-status Critical
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
    • D01H7/00—Spinning or twisting arrangements
    • D01H7/92—Spinning or twisting arrangements for imparting transient twist, i.e. false twist
    • D01H7/926—Spinning or twisting arrangements for imparting transient twist, i.e. false twist by means of traversing devices

Definitions

  • a reciprocating roller twisting mechanism including a hollow cylindrical roller supported internally on a pair of bearing members spaced longitudinally thereof, a rod extending from outside the roller through one of said bearing members into the interior of the roller between the bearing members where it is fastened to the roller by fastening means and means to reciprocate the rod longitudinally and simultaneously to rotate it thereby to impart axial reciprocation and simultaneous rotation of the roller on said bearing members.
  • roller twisting mechanisms In the construction and operation of roller twisting mechanisms, it is particularly important that the rollers be accurately positioned and supported and also that disturbance and contamination of the strand being twisted is avoided. For high production rates, it is necessary that the rollers be rotated and reciprocated rapidly. It is thus important to reduce so far as possible the mass to be reciprocated to provide bearings which are capable of handling high speed rotation and reciprocation simultaneously and to eliminate wherever possible sources of bearing play, deflection and vibration. Heating of the rollers must also be minimized as the physical properties of their coatings deteriorate with increasing temperature and any expansion due to heating complicates the adjustment of the gap between the rollers.
  • a reciprocating roller twisting mechanism including a hollow cylindrical roller supported internally on a pair of bearing members spaced longitudinally thereof, a rod extending from outside the roller through one of said bearing members into the interior of the roller between the bearing where it is fastened to the roller by fastening means and means to reciprocate the rod longitudinally and simultaneously to rotate it thereby to impart axial reciprocation and simultaneous rotation of the roller on said bearing members.
  • the rod is coaxial with the roller throughout its length.
  • the invention also provides, according to a further aspect, a reciprocating roller twisting mechanism including a hollow reciprocable and rotatable roller having an internal cylindrical bearing surface, a mandrel supported on a frame and arranged to project into the interior of the roller, a plurality of orifices arranged about the periphery of the mandrel and means to direct gas under pressure through the orifices against the bearing surface to form a gas bearing whereby the roller is supported on the mandrel.
  • the mandrel is hollow and is provided internally with a manifold to supply gas to the orifices and with an exhaust passage to exhaust gas from the interior of the roller.
  • the manifold and the exhaust passage may conveniently be formed by providing a tube located within the mandrel and internally spaced from the walls of the mandrel, to provide around the outside of the tube an annular space which serves as the manifold.
  • the reciprocating and rotating drive may be supplied to the roller through a connecting rod passing through the mandrel.
  • the connection between the connecting rod and the roller is by means of a resilient connection such as a rubber bush.
  • FIGS. 1 and 2 are contiguous on the line X-X to form a longitudinal cross-section through one form of construction in accordance with the invention.
  • a hollow roller 1 is mounted on two air bearings 2 formed at the ends of mandrels 3 mounted on frame 4.
  • Each mandrel is hollow and has mounted within it a tube 5 which is expanded at each end 6 to form a closed annular space 7 between the interior of the mandrel and the exterior of the tube. Compressed air is supplied to this space through the passageway 8 and the space therefore forms a manifold supplying the compressed air to the orifices 9 of the bearing 2.
  • the drive connection of the roller is by means of a connecting rod 12 which is connected at its outer end to a rotating and reciprocating drive means (not shown).
  • the inner end of the connecting rod is attached to a connecting piece 13 which is in turn attached to the interior of the roller.
  • the connection between the connecting rod and the connecting piece is by means of a rubber bush 14 which absorbs vibration and compensates for any misalignment between the axis of the connecting rod and the axis of the roller.
  • Connecting piece 13 is perforated by a number of axial holes 16 which allow air to pass through the connecting piece and so reduce to a minimum any pumping action of this part during reciprocation.
  • each mandrel and its associated bearing is similarly constructed and air is free to flow unimpeded through the interior of the second mandrel.
  • the twisting mechanism comprises a roller pair between which the strand is twisted.
  • the second roller of the pair is shown partly in outline at 15 in the drawing and this roller is of the same construction and is supported similarly to the roller 1.
  • the tubular connecting rod itself may be employed to admit or exhaust air from within the roller and flap or similar valves may be included in the exhaust passages so that air is exhausted from, or circulated through; the rollers by the pumping action. It is to be understood that these and many other modifications and adaptations may be made to the specifically described construction without departing from the scope of the appended claims.
  • Apparatus for twisting a travelling strand to impart to said strand alternating zones of opposite twist comprising a pair of hollow nip rollers; roller support means supporting the rollers for rotation and longitudinal reciprocation; and drive means for simultaneously rotating the rollers and reciprocating them in opposite phase; wherein each roller has ateach end an internal cylindrical bearing surface, said roller support means comprises two pairs of mandrels each pair extending into the opposite ends of each of the rollers within the respective internal cylindrical bearing surfaces, the inner ends of each pair of mandrels within a roller being spaced apart by a distance which is greater than the stroke of the roller reciprocation, a plurality of orifices in each mandrel arranged about the periphery of that mandrel and means to direct gas under pressure through the orifices against the adjacent bearing surface to form a gas bearing supporting the respective roller end on the mandrel, at least one mandrel of each of said pairs of mandrels being hollow to provide a central passage extending through that man
  • each of said fastener means includes passage means for the flow of gas therethrough longitudinally of the respective roller thereby to reduce any pumping action of the fastener means on reciprocation of the roller.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
US114018A 1970-02-09 1971-02-09 Roller support means for roller twisting apparatus Expired - Lifetime US3693339A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AUPA028470 1970-02-09

Publications (1)

Publication Number Publication Date
US3693339A true US3693339A (en) 1972-09-26

Family

ID=30449856

Family Applications (1)

Application Number Title Priority Date Filing Date
US114018A Expired - Lifetime US3693339A (en) 1970-02-09 1971-02-09 Roller support means for roller twisting apparatus

Country Status (4)

Country Link
US (1) US3693339A (enrdf_load_stackoverflow)
JP (1) JPS513228Y2 (enrdf_load_stackoverflow)
BE (1) BE762708A (enrdf_load_stackoverflow)
GB (1) GB1341292A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3807160A (en) * 1971-12-30 1974-04-30 Commw Scient Ind Res Org Roller support for self-twist spinning machine
US3979893A (en) * 1973-08-06 1976-09-14 Edo Gelli Mechanical system and method for continuous working woolen type yarn from cards to spinning frame

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53101613U (enrdf_load_stackoverflow) * 1977-01-21 1978-08-16
JPH0223251U (enrdf_load_stackoverflow) * 1988-07-30 1990-02-15

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR851139A (fr) * 1938-03-05 1940-01-03 Collecteur et distributeur d'huile pour mécanisme d'engrenages
US3160357A (en) * 1963-06-18 1964-12-08 Monsanto Co Filament yarn winding apparatus
US3377792A (en) * 1964-10-28 1968-04-16 Commw Scient Ind Res Org Twisting apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR851139A (fr) * 1938-03-05 1940-01-03 Collecteur et distributeur d'huile pour mécanisme d'engrenages
US3160357A (en) * 1963-06-18 1964-12-08 Monsanto Co Filament yarn winding apparatus
US3377792A (en) * 1964-10-28 1968-04-16 Commw Scient Ind Res Org Twisting apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3807160A (en) * 1971-12-30 1974-04-30 Commw Scient Ind Res Org Roller support for self-twist spinning machine
US3979893A (en) * 1973-08-06 1976-09-14 Edo Gelli Mechanical system and method for continuous working woolen type yarn from cards to spinning frame

Also Published As

Publication number Publication date
GB1341292A (en) 1973-12-19
BE762708A (fr) 1971-07-16
JPS463U (enrdf_load_stackoverflow) 1971-09-13
JPS513228Y2 (enrdf_load_stackoverflow) 1976-01-30

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