US2858577A - Drawing frame sliver controlling enclosure - Google Patents

Drawing frame sliver controlling enclosure Download PDF

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Publication number
US2858577A
US2858577A US695118A US69511857A US2858577A US 2858577 A US2858577 A US 2858577A US 695118 A US695118 A US 695118A US 69511857 A US69511857 A US 69511857A US 2858577 A US2858577 A US 2858577A
Authority
US
United States
Prior art keywords
sliver
trumpet
enclosure
rolls
air
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
US695118A
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English (en)
Inventor
Paul B West
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.)
Saco Lowell Shops
Original Assignee
Saco Lowell Shops
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 Saco Lowell Shops filed Critical Saco Lowell Shops
Priority to US695118A priority Critical patent/US2858577A/en
Priority to GB9897/56A priority patent/GB824619A/en
Priority to BE566792D priority patent/BE566792A/xx
Application granted granted Critical
Publication of US2858577A publication Critical patent/US2858577A/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
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G15/00—Carding machines or accessories; Card clothing; Burr-crushing or removing arrangements associated with carding or other preliminary-treatment machines
    • D01G15/02—Carding machines
    • D01G15/12—Details
    • D01G15/46—Doffing or like arrangements for removing fibres from carding elements; Web-dividing apparatus; Condensers
    • D01G15/64—Drafting or twisting apparatus associated with doffing arrangements or with web-dividing apparatus
    • 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
    • D01H5/70—Constructional features of drafting elements
    • D01H5/72—Fibre-condensing guides

Definitions

  • This invention relates to drawing frame calendering mechanisms and more particularly to a novel sliver controlling enclosure for a web of sliver from the nip of the drafting element output rolls of a drawing frame to the nip of the rolls of the calendering mechanism thereof.
  • the sliver delivered by a drawing frame from the nip of the last pair of rolls thereof must be moved for a distance of several inches to the nip of a calendering mechanism which forms the input to the coiler portion or other take-up mechanism of the frame, such coiler portion disposing the sliver in the customary coiled formationin a-roving can and so providing a take-up package.
  • the untwisted sliver tends to be opened up with the individual cotton fibers or the like being spread outwardly and released from the body of the sliver, principally because of the action of the conventional trumpet in squeezing air out of'the sliver as the sliver enters it, but also because of the generation of static electricity and the effect of the slivers movement through the air.
  • the speed of operation can readily be made great enough to cause the release of individual fibers from the body of the sliver in sufficient quantity so that the output end of such a frame resembles a miniature snowstorm, with considerable loss of fiber.
  • the invention is based on the principle of providing an enclosure whereby air squeezed out of the sliver by reason of the slivers entry into the trumpet is returned in a direction countercurrent to the direction of movement of the sliver so that it can be absorbed into thesliver as the sliver is expanding upon passing from the nip of the drawing frame output rolls, the .air stream being kept away from the sliver except in the region adjacent the output rolls to avoid large relative'velocities between the sliver and the countercurrent air stream.
  • Fig. 1 is an elevation of a portion of a drawing frame with the sliver controlling enclosure of the invention thereon;
  • Fig. 2 is a plan of the sliver controlling enclosure of Fig. 1;
  • Fig. 3 is a side cross section of the enclosure of Fig. 2 taken on the line 3-3 thereof;
  • Figs. 4 and 5 are cross sections taken on the lines 4-4 and 55 of Fig. 3.
  • the novel sliver controlling enclosure of the invention is in the shape of a generally flat bottomed horn with flaring sides pivotally mounted on the drawing frame roll stand D, said enclosure having its mouth opening adjacent the nip of the drawing frame output rolls R and its throat opening adjacent the calendering rolls C and in sealing contact with the face of trumpet T above such latter rolls.
  • the trumpet T in effect forms a continuation of the horn throat so that sliver S is moved from output rolls R to calendering rolls C along the generally fiat bottom of the enclosure, with the enclosure providing control of sliver movement as well as control of the air currents adjacent the sliver S.
  • the preferred embodiment of the horn structure of the invention includes a generally fiat sheet metal bottom or floor portion 10 and a top or cover portion 20.
  • Said fioor portion 10 has upwardly and inwardly turned flaring sides 12, the transversely extending mouth forming lower edge 14 at the forward end of said floor portion being pivotally mounted for upwardly swinging movement about transverse pivot shaft 16.
  • the floor portion near forward edge 14 is turned downward somewhat to facilitate entry of sliver.
  • the rear edge 18 of said floor portion 10 normally rests on the fiat upper face of trumpet T in a position .to provide a smooth lead for sliver S entering said trumpet and to effectively seal the enclosure against the entry of air between such edge and trumpet face.
  • the cover portion: 20" is also generally flat with an. upturned for-' ward edge 22 to facilitate entry of the sliver S into the narrow rectangularmouth opening of the enclosure, .and yet to prevent free air communication insofar as pos-i sible without. interfering with :such entryn
  • A. downturned rear edge 24 is also provided whichzledgeextends beyond. floor portion rear-.iedgelli around the remainder ofthe periphery of trumpet T and generally coinciding'with its opening for smooth sliver lead.
  • a flange 26 is :providedfaround the sbottom: of said edget24: to aid in'sealing.
  • Flanges :28 are alsoprovided. along the flared :sides of cover portion 20 to rest on and overlie the inwardly turned sides 12 .of bottom portion 20 to provide an effective seal along the sides of the entire enclosure.
  • bulge 30 is provided-on the cover portion 20. in the region of the throat so that a passageway is provided for the returning air clear of the sliver surface;
  • Such bulge begins in a smooth transition from the rounded rear edge'24 of the cover portion and extends upwardly and along the relatively narrow throat portion of the enclosure, it being of decreasing height beyond said narrow throat portion until it merges smoothly into the generally flat upper surface of the cover portion 20 about two thirds of the distance from trumpet T to the forward edge of the enclosure.
  • the bulge 30 provides an aerodynamically clean passageway for the air expressed from the sliver at the trumpet T, in that such passageway merges smoothly both with trumpet T and into the relatively wide flat cover adjacent the mouth of the enclousre wherein air is continuously being absorbed into the sliver S. Furthermore, such bulge in the region of the relatively narrow throat portion of the enclosure provides an almost semi-circular cross-sectional configuration (Fig. 4) of much greater size thanis needed for the movement of the sliver S alone so that an air passageway 32 of substantial area free of sliver can be provided so that'air velocities adjacent the sliver surface are eifectively reduced.
  • cover 20 Due tothe'unusual shape of cover 20, as Well as to the desirability of 'being able to observe the sliver, it is preferred-that said cover 20 be of a clear plastic material, such as a vinyl, acrylic or styrene plastic, which can be readily formed as required, although metal could be'used' as well. With plastic, it is also preferable to treat the interior surfaces, so that they do not generate static electricity, although it is less important than it is with the bottomsurface since sliver does not normally contact the surfaces'of cover 20.
  • a clear plastic material such as a vinyl, acrylic or styrene plastic
  • the sliver S passes from the nip .of the drawing frame output rolls R along the floor of the horn.- shaped enclosure of the invention and through the trumpet T 'asmoved by calender rolls C. Since the enclosure of the invention fits closely to the trumpet T, the air squeezed out by the constriction of the trumpet is expelled into the throat region of the horn. Such air, as shown by the arrows in Figs. 2 and 3, then moves in a direction. counter-current to the direction of movement of thersliveralongthe passageway formed by bulge 30 above the sliver, and is absorbed into the expanding fiber in the region of the mouth portion of the horn enclo-. sure; This in effect provides a closed circuit for. the air, and little can either escape or enter the enclosure,.
  • a sliver controlling enclosure for a web of sliver extending from adjacent the nip of said output rolls to adjacent said trumpet, said enclosure being in the shape of a horn havinga narrow generally rectangular mouth opening of greater width than height positioned closely adjacent the nipv of said output rolls and a throat opening positioned closely adjacent and above said trumpet, the bottom of said horn extending continuously from adjacent said output roll nip to said trumpet and the top of said horn joined with said bottom to provide enclosed sides: along the length of said horn, with the top of said i being bulged upwardly being horn in the region of said throat for a substantialdistance but of decreasing height toward said mouth opening to provide adjacent said mouth opening,
  • a sliver controlling enclosure for a web of sliver extending from adjacent the nip-z of said output rolls to adjacent said trumpet, said enclosure being in the shape of a generally flat bottomed.
  • r and a throat opening of generally semi-circular *con figuration positioned closely adjacent and above said trumpet-incontact with the face of said trumpet then generally flat.
  • horn extending continu-p ously from adjacent said output roll-nip tozsaid trumpet" and having an interior surface of non-static electricity; horn being joined with-said bottom to provide flared enclosed sides: along with the top of said horn-in;
  • opening 'of gen-.- erally semi-circular configuration positioned closely -adnip..of .saidoutput rolls. and a throat.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
US695118A 1957-11-07 1957-11-07 Drawing frame sliver controlling enclosure Expired - Lifetime US2858577A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US695118A US2858577A (en) 1957-11-07 1957-11-07 Drawing frame sliver controlling enclosure
GB9897/56A GB824619A (en) 1957-11-07 1958-03-27 Improvements in or relating to drawing frame calendering mechanisms
BE566792D BE566792A (en(2012)) 1957-11-07 1958-04-15

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US695118A US2858577A (en) 1957-11-07 1957-11-07 Drawing frame sliver controlling enclosure

Publications (1)

Publication Number Publication Date
US2858577A true US2858577A (en) 1958-11-04

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Family Applications (1)

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US695118A Expired - Lifetime US2858577A (en) 1957-11-07 1957-11-07 Drawing frame sliver controlling enclosure

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US (1) US2858577A (en(2012))
BE (1) BE566792A (en(2012))
GB (1) GB824619A (en(2012))

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3020600A (en) * 1959-11-23 1962-02-13 Saco Lowell Shops Fly removing apparatus
DE1127258B (de) * 1959-03-12 1962-04-05 Spintex Spinnerei Maschb Stieh Strecke fuer Faserbaender, insbesondere Schnellaeuferstrecke
DE1137982B (de) * 1958-12-19 1962-10-11 Rieter Joh Jacob & Cie Ag Bandeinlaufrichter fuer Spinnereimaschinen, insbesondere Strecken
US3075251A (en) * 1959-10-16 1963-01-29 Pneumafil Corp Trumpet cleaner
US3083414A (en) * 1959-09-12 1963-04-02 Luwa Ag Forming funnel and method of forming sliver
US3255495A (en) * 1960-10-10 1966-06-14 Whitin Machine Works Sliver forming apparatus
DE1235201B (de) * 1959-09-12 1967-02-23 Luwa Ag Trichterfoermiger Vliesfuehrer am Auslauf von Streckwerken
DE1273391B (de) * 1962-03-16 1968-07-18 Carrier Engineering Co Ltd Absaugvorrichtung an Spinnmaschinen
CN109853091A (zh) * 2019-03-29 2019-06-07 卓郎（常州）纺织机械有限公司 一种具有预牵伸功能的梳棉机

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1159851B (de) * 1960-04-12 1963-12-19 Hasenclever Ag Maschf Fuelltaschenverschluss fuer Schachtgefaessfoerderanlagen

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB587095A (en) * 1945-01-03 1947-04-14 Mellowes & Company Ltd Improvements in or relating to textile spinning machinery

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB587095A (en) * 1945-01-03 1947-04-14 Mellowes & Company Ltd Improvements in or relating to textile spinning machinery

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1137982B (de) * 1958-12-19 1962-10-11 Rieter Joh Jacob & Cie Ag Bandeinlaufrichter fuer Spinnereimaschinen, insbesondere Strecken
DE1127258B (de) * 1959-03-12 1962-04-05 Spintex Spinnerei Maschb Stieh Strecke fuer Faserbaender, insbesondere Schnellaeuferstrecke
US3083414A (en) * 1959-09-12 1963-04-02 Luwa Ag Forming funnel and method of forming sliver
DE1235201B (de) * 1959-09-12 1967-02-23 Luwa Ag Trichterfoermiger Vliesfuehrer am Auslauf von Streckwerken
US3075251A (en) * 1959-10-16 1963-01-29 Pneumafil Corp Trumpet cleaner
US3020600A (en) * 1959-11-23 1962-02-13 Saco Lowell Shops Fly removing apparatus
US3255495A (en) * 1960-10-10 1966-06-14 Whitin Machine Works Sliver forming apparatus
DE1273391B (de) * 1962-03-16 1968-07-18 Carrier Engineering Co Ltd Absaugvorrichtung an Spinnmaschinen
CN109853091A (zh) * 2019-03-29 2019-06-07 卓郎（常州）纺织机械有限公司 一种具有预牵伸功能的梳棉机

Also Published As

Publication number Publication date
GB824619A (en) 1959-12-02
BE566792A (en(2012)) 1960-08-12

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