US3568258A - Adjustable textile drafting apparatus - Google Patents

Adjustable textile drafting apparatus Download PDF

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Publication number
US3568258A
US3568258A US744148A US3568258DA US3568258A US 3568258 A US3568258 A US 3568258A US 744148 A US744148 A US 744148A US 3568258D A US3568258D A US 3568258DA US 3568258 A US3568258 A US 3568258A
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US
United States
Prior art keywords
saddle
pressure roller
holder
guide
plane
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
US744148A
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English (en)
Inventor
Adolf Schiltknecht
Andre Lattion
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 US3568258A publication Critical patent/US3568258A/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
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/46—Loading arrangements
    • D01H5/52—Loading arrangements using fluid pressure
    • D01H5/525—Loading arrangements using fluid pressure for top roller arms

Definitions

  • This invention relates to an adjustable textile drafting apparatus for flyer and speed frames and spinning machines. More particularly, this invention relates to the mounting of the top pressure rollers in a pivotal guide arm or weighing arm.
  • the holder for the central pressure roller is disposed to be displaceable in a plane parallel to the plane of the drafting field.
  • the nip spacing of the main drafting zone can be adapted to the staple diagram of the fiber material of the material to be spun.
  • the holder for the draw-in pressure roller is also arranged to be adjustabl'y' fixed within a guideway extending in a plane parallel to the drafting field.
  • the holder for the draw-in pressure roller can only be brought up to the guideway for the holder of the central pressure roller.
  • the invention provides a drafting arrangement wherein a single guide arm mounts a pair of saddles for pivotal movement with respect to each other.
  • the rear saddle is pivotally mounted in the guide arm and mounts a rear draw-in roller holder whereas the front saddle is pivotally mounted in the front saddle and mounts a front pressure roller holder and a central pressure roller holder.
  • the rear draw-in roller holder is mounted in an adjustable mannerwithin a guide slot of the rear saddle while the central pressure roller holder is similarly mounted in a guide slot of the front saddle which is disposed in a plane different from the plane of the rear saddle guide slot.
  • the projected plane of the guide slot for the central pressure roller planes of the respective guide slots intersect each other with the plane of the guide slot for the central pressure roller directed upwardly towards the guide slot of the rear saddle.
  • the holder for the rear draw-in pressure roller is adjustable for narrow or close adjustment below the guide slot for the central pressure roller holder.
  • FIG. 1 illustrates a longitudinal cross-sectional view through a drafting apparatus of the invention arranged for short staple lengths
  • FIG. 2 illustrates a view similar to FIG. 1 of the drafting apparatus arranged for long staple lengths
  • FIG. 3 illustrates a view taken on line III-III of FIG. 2.
  • the drafting apparatus includes a guide arm 1 which is pivotally mounted on a machine frame about a pivot 2.
  • a lever 3 is pivotally mounted in a stationary housing of the machine frame about a pivot 2' for applying a pressure force from a compression spring means 4 onto a closure lever 5 (FIG. 1) and, via the lever 5, on the guide arm 1.
  • the closure lever 5 is pivotally mounted on the guide arm 1 by a pin 6 which passes through the guide arm 1.
  • the pin 6 is disposed, as shown, above the point 3 at which the lever 3 acts on the closure lever 5 to bias the closure lever 5 in a counterclockwise direction as viewed in FIG. 1.
  • the guide arm 1 is constructed with a pair of depending lateral cheeks 8, each of which includes a plurality of aligned bores.
  • the checks 8 support a pin 7 which passes through an opposed pair of bores while the pin 7 serves as a pivot axis to pivotally mount a rear saddle 9 Within the cheeks 8.
  • the rear saddle 9 includes a plurality of aligned horizontal bores for selectively receiving the pin 7.
  • the forward portion of the rear saddle 9 is U-shaped in cross-section while the rear portion is box-shaped in cross-section and includes a guide slot 10 in the lower wall for receiving a rear draw-in holder 12 of a rear draw-in pressure roller 12'.
  • the rear holder 12 is constructed so as to be adjusted and locked within the slot 10, for example, through means of a screw and nut connection 11.
  • the rear portion of the rear saddle 9 has a second row of bores below the row of bores for the pin 7. This second row of "bores are sized to receive a pin 15.
  • FIG. 3 which serves as a bearing and pivot axis for a front saddle 16.
  • the front saddle 16 has a front lever end which is provided with a row of bores to receive the pin and which carries a holder 17, as above, for a front pressure roller 17 and a rear lever arm which carries a holder 18 for a central pressure roller 18'.
  • the rear lever arm includes a guide slot :19 in which the holder 18 is adjusted and locked in place by a screw and nut connection as above.
  • the guide slot 19 is disposed in a plane which intersects the plane of the guide slot 10 in the rear saddle so as to form an enclosed acute angle therewith. In this regard, the plane of the guide slot 19 slopes upwardly and towards the guide slot 10, as viewed.
  • the pin 7 is placed in a forward set of bores at the free end of the guide arm 1 as well as in a forward set of bores of the rear saddle 9. Also, the pin 15 is placed in a forward set of bores in the forward portion of the rear saddle 9 and front saddle 16. Further, the holders 12, 18 for the rear draw-in pressure roller 12 and central pressure roller 18 are moved into the foremost ends of the respective guide slots 10, 19 and locked in place. The guide arm 1 is then pivoted in counterclockwise manner under the bias of the spring means 4 to cause the pressure rollers 12', 17', 18' to press against the respective drive or draw-01f rollers 20, 21, 22.
  • the guide slot 19 of the holder 18 of the central pressure roller 18 extends at an angle relative to the guide slot 10 for the rear draw-in holder 12 such that the planes of the respective guide slots 19, 10 intersect and the holder 12 is positioned beneath the guide slot 19. 7
  • the pin 7 is placed in a rear set of bores of the guide arm 1 and rear saddle 9. Also, the pin 15 is placed in a rear set of bores in the forward portion of the rear saddle 9 and front saddle 15. Finally, the holders 12, 18 are moved into the rearmost ends of the respective guide slots 10, 19 and locked in place.
  • a drafting apparatus for textile machines comprising a guide arm,
  • a rear saddle pivotally mounted in said guide arm and including a first guideway at the rear thereof for adjustably receiving a draw-in pressure roller therein,
  • a front saddle pivotally mounted in the front of said rear saddle, said front saddle including a second guideway at the rear thereof for adjustably receiving a central pressure roller therein and means at the front thereof for receiving a front pressure roller, said second guideway being disposed in a plane different from the plane of said first guideway, and
  • a pin pivotally mounting said rear saddle in said guide arm, and a plurality of bores in said rear saddle and a plurality of bores in said guide arm for selectively receiving said pin to vary the pivot axis of said rear saddle.
  • a drafting apparatus for textile machines comprising a guide arm,
  • a rear saddle pivotally mounted in said guide arm and including a first guideway at the rear thereof for adjustably receiving a draw-in pressure roller therein,
  • a front saddle pivotally mounted in the front of said rear saddle, said front saddle including a second guide way at the rear thereof for adjustably receiving 'a central pressure roller therein and means at the front thereof for receiving a front pressure roller, said second guideway being disposed in a plane different from the plane of said first guideway, and
  • a pin pivotally mounting said front saddle in said rear saddle and a plurality of bores in said rear saddle and a plurality of bores in said front saddle for selectively receiving said pin to vary the pivot axis of said front saddle longitudinally of said front saddle.
  • a drafting apparatus for textile machines comprising a guide arm,
  • a rear saddle pivotally mounted in said guide arm apd including a first guide way at the rear thereof adjustably receiving a draw-in pressure roller therein,
  • a front saddle pivotally mounted in the front of said rear saddle, said front saddle including a second guide way at the rear thereof adjustably receiving a central pressure roller therein and means at the front thereof receiving a front pressure roller, said second guideway being disposed in a plane different from the plane of said first guide way and terminating at the rear end thereof in front of the front end of said first guide way, said plane of said second guide way being directed upwardly towards said plane of said first guide way, said second guide way being pivotally mounted to pass through the projected plane of said first guide way.
  • An apparatus as set forth in claim 3 further comprising a holder adjustably mounted in said first guide way for mounting the draw-in pressure roller, said holder being adjustable to a position beneath said second guide way.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
US744148A 1967-07-13 1968-07-11 Adjustable textile drafting apparatus Expired - Lifetime US3568258A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEM0074745 1967-07-13

Publications (1)

Publication Number Publication Date
US3568258A true US3568258A (en) 1971-03-09

Family

ID=7315865

Family Applications (1)

Application Number Title Priority Date Filing Date
US744148A Expired - Lifetime US3568258A (en) 1967-07-13 1968-07-11 Adjustable textile drafting apparatus

Country Status (4)

Country Link
US (1) US3568258A (enrdf_load_stackoverflow)
CH (1) CH469830A (enrdf_load_stackoverflow)
FR (1) FR1570287A (enrdf_load_stackoverflow)
GB (1) GB1226771A (enrdf_load_stackoverflow)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3732596A (en) * 1971-06-16 1973-05-15 Schaeffler Ohg Industriewerk Top roll loading system for drafting units
US4969238A (en) * 1988-11-05 1990-11-13 Zinser Textilmaschinen Gmbh Apparatus for selectively securing a carrier member of a textile drafting apparatus
US20120297748A1 (en) * 2010-02-12 2012-11-29 Maschinenfabrik Rieter Ag Drawing Frame for a Spinning Machine
US11879186B2 (en) * 2018-05-24 2024-01-23 Saurer Spinning Solutions Gmbh & Co. Kg Drafting system and drafting system unit for a spinning machine

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3933165A1 (de) * 1989-10-04 1991-04-11 Rieter Ag Maschf Spinnmaschinen mit doppelriemchen-streckwerken
CN102704065A (zh) * 2012-07-06 2012-10-03 常熟市天豪机械有限公司 纺纱机用摇架装置

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3732596A (en) * 1971-06-16 1973-05-15 Schaeffler Ohg Industriewerk Top roll loading system for drafting units
US4969238A (en) * 1988-11-05 1990-11-13 Zinser Textilmaschinen Gmbh Apparatus for selectively securing a carrier member of a textile drafting apparatus
US20120297748A1 (en) * 2010-02-12 2012-11-29 Maschinenfabrik Rieter Ag Drawing Frame for a Spinning Machine
US8671657B2 (en) * 2010-02-12 2014-03-18 Maschinenfabrik Rieter Ag Drawing frame for a spinning machine
US11879186B2 (en) * 2018-05-24 2024-01-23 Saurer Spinning Solutions Gmbh & Co. Kg Drafting system and drafting system unit for a spinning machine

Also Published As

Publication number Publication date
DE1685903A1 (de) 1971-11-18
CH469830A (de) 1969-03-15
FR1570287A (enrdf_load_stackoverflow) 1969-06-06
GB1226771A (enrdf_load_stackoverflow) 1971-03-31
DE1685903B2 (de) 1976-02-05

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