US3373469A - Apparatus for crimping textile fibers - Google Patents

Apparatus for crimping textile fibers Download PDF

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Publication number
US3373469A
US3373469A US570913A US57091366A US3373469A US 3373469 A US3373469 A US 3373469A US 570913 A US570913 A US 570913A US 57091366 A US57091366 A US 57091366A US 3373469 A US3373469 A US 3373469A
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United States
Prior art keywords
chamber
crimping
rolls
wear plate
side wall
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
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US570913A
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English (en)
Inventor
Boggs Beryl Aaron
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Allied Corp
Original Assignee
Allied Chemical Corp
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Publication date
Application filed by Allied Chemical Corp filed Critical Allied Chemical Corp
Priority to US570913A priority Critical patent/US3373469A/en
Priority to GB31701/67A priority patent/GB1148366A/en
Priority to BE702397D priority patent/BE702397A/xx
Priority to FR117106A priority patent/FR1533741A/fr
Priority to DE19671660184 priority patent/DE1660184A1/de
Application granted granted Critical
Publication of US3373469A publication Critical patent/US3373469A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/12—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using stuffer boxes

Definitions

  • Crimped yarns have also been prepared by the well-known stuffer box technique wherein the yarn is steamed to heat setting temperature while it is in the compressed state in a stutter box.
  • the present invention provides apparatus suitable for carrying out the crimping of yarns by the stuifer box technique.
  • Apparatus currently in use for imparting crimp to artificial fibers by the stutter box technique generally includes a complementary set of positively driven feed rolls between which the sliver or yarn is fed into a stuffing chamber having restricting means located at the discharge end thereof capable of resisting or retarding the flow of the sliver or yarns through the chamber causing a crimp to be imparted to the yarns prior to being discharged from the chamber.
  • restricting means located at the discharge end thereof capable of resisting or retarding the flow of the sliver or yarns through the chamber causing a crimp to be imparted to the yarns prior to being discharged from the chamber.
  • yarns which are unevenly fed or which have deformities such as slubs and the like cause the rolls to become momentarily misaligned and consequently, skewed with respect to each other so that after a period of time, the side plates of the stuffing chamber which contact the side faces of the rolls when the rolls are skewed become grooved and worn necessitating their periodic replacement.
  • the housing walls of the crimping chamber are provided with curved recesses which accommodate disc members which lie adjacent the flat surfaces of the feed rolls in the area of the nip.
  • the yarn to be crimped passes between the discs thereby being prevented from sliding out sideways between the rolls.
  • These discs are maintained in position against the rolls by a bolt member which passes through side wall brackets.
  • the disc members are limited to horizontal movement and do not follow the action of the feed rolls.
  • Another object is to provide an apparatus for crimp- 3,373,469 Patented Mar. 19, 1968 ing yarns whereby filament entrapment between the feed rolls and the walls of the stufiing chamber is eliminated.
  • a further object is to provide an apparatus for crimping yarns without damage to the side walls of the crimping chamber or to the feed rolls.
  • Another object is to provide an apparatus for crimping yarns whereby the :feed rolls are accommodated in multi-directional displacement without causing damage to the apparatus.
  • apparatus for crimping textile fibers which comprises a crimping chamber including a base and a pair of side walls; a positively driven complementary pair of feed rolls having end faces, said feed rolls being disposed in subjacent relation transversely adjacent one end of said chamber intermediate said side walls, a pair of doctor blades each having a leading edge facing away from said crimping chamber one of each doctor blades forming the upper and lower portions of said crimping chamber at a site immediately forward from said feed rolls, a recess in each side wall defining a back edge in said side wall, each of the leading edges of said doctor blades and each of the back edges of said side walls forming the opening to said crimping chamber, a wear plate positioned in each of said recesses having a rearward edge disposed nearest said crimping chamber, and biasing means for pressure positioning said wear plates against said back edge of said side wall, toward said end faces of said rolls to accommodate said rolls in multi-directional displacement and toward the leading edges of said
  • the present invention advantageously permits operation of the apparatus without producing detrimental effects to the rolls and the walls of the crimping chamber and moreover eliminates the problem of fiber or filament entrapment in the crevices formed by the Walls of crimping chamber and the side .or end faces of the feed rolls.
  • the above advantages are achieved by providing wear plates disposed in recesses in the side walls which accommodate the feed rolls in multi-directional displacement i.e., vertically, horizontally and points therebetween.
  • biasing means for pressuring positioning the wear plates toward the end faces of the feed rolls in yielding relation and means for urging the wear plates against an edge of the recess in each of said side walls at the point where fiber entrapment normally occurs.
  • FIGURE 1 is a plan view of the apparatus with the top roll removed for clarity.
  • FIGURE 2 is an end view of the apparatus looking from the source of feed.
  • FIGURE 3 is a view lines 3,3 of FIGURE l.
  • FIGURE 4 is a view taken along the lines 4,4 of FIG- URE 2.
  • FIGURE 5 is a view taken along the lines 5, 5 of FIGURE 1 wtih th e feed rolls shown in phantom.
  • FIGURE 6 is a view of the wear plate and the wear plate bracket of the invention looking at the face side of the wear plate.
  • FIGURE 7 is a view of the wear plate and the wear plate bracket of the invention looking at the back side of the wear plate.
  • the apparatus comprises a crimping chamber 1 which is partially bound by base 2, a pair of side walls 3 disposed one on each side of the crimping chamber, :and
  • a pair of feed rolls 8 and 9 Disposed adjacent one end of the chamber 1 are a pair of feed rolls 8 and 9 which are positioned and mounted ton two parallel disposed -shafts (not shown) and which :are in subjacent relation, transversely of the apparatus :and intermediate the side walls 3.
  • the top feed roll 8 is flexibly mounted on a frame (not shown) and is rotated clockwise while the bottom feed roll 9 is rotated counterclockwise both rolls being rotated from a power source, not shown, and the yarn to be crimped is delivered between the rolls to the crimping chamber in substantially horizontal parallel relation.
  • the rolls are preferably fabricated from hardened and ground metal and are preferably although not necessarily provided on their outer periphery with indentations or grooves.
  • doctor blades 10 Situated at one end of the crimping chamber 1 are a pair of doctor blades 10, one of which is disposed above the chamber and one below the chamber, each of which has a leading edge 10a positioned immediately adjacent but in an out-of-contact relation with the outer periphery of the feed rolls 8 and 9 and are positioned in a manner such as to provide a minimum clearance between the leading edge of the blades and the outer periphery of the rolls while permitting free rotation of the rolls 8 and 9.
  • the doctor blades 10 form the upper and lower portions of the crimping chamber 1 at the site immediately forward from the feed rolls.
  • the side walls 3 extend from crimping chamber 1 toward the direction of yarn source and are provided with a cut-out portion or recess 13 defining a back edge 12 of the side wall.
  • the leading edges 10a of the doctor blade and the back edges 12 of the side wall form the opening to the chamber 1.
  • a wear plate bracket 14 Positioned in each of the recesses is a wear plate bracket 14. (See FIGURES 3 and 4.)
  • the wear plate bracket 14 has projections 1S extending one from each corner and these projections register with corresponding cutout portions 16 of the wear plate 11 so that when the rear end 17 of the wear plate 11 i.e., the end facing away from the rolls 8 and 9) is urged towards the inside surface 18 of the wear plate bracket 14, the wear plate registers with the wear plate bracket and is maintained in sliding engagement therewith.
  • the outer side 19 of the wear plate bracket has upper and lower extending leaves 2t) and 21 respectively which terminate a short distance from a side of the wear plate bracket 14.
  • the invention provides biasing means which includes a fluid chamber 22, a fiuid conduit 23 leading into the fluid chamber and means for urging the wear plates against each back edge of the side wall and toward each leading edge of the doctor blade.
  • a fluid chamber is disposed one on each side of the apparatus and is enclosed on three sides by the side wall 3 and by arms 24 projecting from each side wall.
  • Each of the arms has a cut-out portion 25 at the end furthest from the side wall and this cutout portion aecommodates in sliding relation the leaves 20 and 21 of the wear plate brackets so that the wear plate bracket and the wear plate is permitted to travel toward and away from the end faces of the feed rolls 8 and 9.
  • Fluid inlet port Z6 is positioned in the fiuid chamber at a point situated behind piston 27, the latter bearing against the back of the wear plate as shown in FIGURE 3.
  • the pressure developed in fluid chamber 22 causes the wear plate bracket and associated wear plate to move toward or away from each of the end faces of the feed rolls depending upon the pressure maintained in the fluid chamber and the force exerted on the wear plate and wear plate bracket from the action of the rolls. Normally, there is a clearance between the end face of the feed roll and the wear plate of about 0.002.
  • conduits 23 which deliver the fluid under pressure to each of the tiuid chambers extends toward the discharge end of the apparatus that is, toward the end which discharges the yarn in crimped condition.
  • Coupling means are provided at one end of each of the conduits so that each of the conduits may be connected to a fluid power source, not shown.
  • Located on the forward edge of each wear plate bracket, that is, the edge closest to the yarn entry source, and disposed one on each side of the apparatus are means for urging the wear plates rearward against the back edge of the side wall and toward the leading edge of the doctor blade 10.
  • These urging means include a spring 28 contained in a cut-out portion 29 which bears against plunger 30 in contact with the wear plate bracket 14.
  • each of the wear plates has a portion 31 which is substantially perpendicular to the face end of the wear plate and a beveled portion 32 adjacent the substantially perpendicular portion.
  • This beveled portion assures that the contact with the rear edge of the side wall will be along the front edge or perpendicular portion of the wear plate. It is this perpendicular portion which contacts the side wall and advantageously clears the leading edge of the doctor blade. It will also be seen by this design that the rolls can be easily shifted and that the wear plates do not cover the doctor blade.
  • the fluid employed in the apparatus is preferably air.
  • the advantages of employing air pressure is that the pressure can be adjusted to give the longest life on the wear plates.
  • the apparatus of this invention can be used to crimp and bulk any natural or synthetic plasticizable fiilamentary material.
  • Thermoplastic materials such as polyamides, e.g., poly(epsilon caproamide), poly(hexamethy lene adipamide); cellulose esters; polyesters, e.g., polyethylene terephthalate, poly( hexahydro p xylene teraphthalate), etc.; polyvinyls and polyacrylics, e.g., polyethylene and polyacrylonitrile, as well as copolymers thereof, can be crimped.
  • polyamides e.g., poly(epsilon caproamide), poly(hexamethy lene adipamide); cellulose esters; polyesters, e.g., polyethylene terephthalate, poly( hexahydro p xylene teraphthalate), etc.
  • polyvinyls and polyacrylics
  • This apparatus is also luseful for both mono-filament yarns in textile deniers as well as the heavier carpet and industrial yarn sizes either singly or combined in the form of a heavy tow.
  • the apparatus has been described with reference to yarns, it is to be understood that textile fibers capable of being crimped are subject to being processed on the apparatus whether such textile fibers be in the form of a rope, strand, sliver, tow and the like.
  • Apparatus for crimping textile fibers which comprises a crimping chamber including a base and a pair of side walls; a positively driven complementary pair of teed rolls having end faces, said feed rolls being disposed transversely adjacent one end of said chamber intermediate said side walls, a pair of doctor blades having a leading edge facing away from said crimping chamber one of each doctor blade forming the upper and lower portions of said crimping chamber at a site immediately forward from said feed rolls, a recess in each side Wall defining la back edge in said side wall, each of the leading edges of said doctor blade and each of the back edges of said side wall forming the opening to said stufling chamber, a pair of wear plate brackets positioned in said recesses, each accommodating a wear plate, said wear plates having a rearward edge disposed nearest said crimping chamber, and biasing means for pressure positioning said wear plates against said back edge of said side wall, toward said end faces of said rolls to accommodate said rolls in multi-directional displacement and toward the leading edges of said doctor blade
  • said biasing means includes a fluid chamber disposed one on each side of the wear plate furthest lfrom said end face of said feed roll, a uid conduit leading into said uid chamber and means for urging said wear plates against said back edge of said side wall and towards said leading edge of said doctor blade.
  • Apparatus according to claim 2 wherein said means urging said wear plates includes a plunger in contact with a side of said wear plate and a spring urging said plunger against said wear plate bracket.
  • said wear plate includes a rearward edge defining a portion which is substantially perpendicular to the face end of said wear plate and a beveled portion adjacent said substantially perpendicular portion.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
US570913A 1966-08-08 1966-08-08 Apparatus for crimping textile fibers Expired - Lifetime US3373469A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US570913A US3373469A (en) 1966-08-08 1966-08-08 Apparatus for crimping textile fibers
GB31701/67A GB1148366A (en) 1966-08-08 1967-07-10 Apparatus for crimping textile fibres
BE702397D BE702397A (xx) 1966-08-08 1967-08-07
FR117106A FR1533741A (fr) 1966-08-08 1967-08-07 Appareil pour crêper les fibres textiles
DE19671660184 DE1660184A1 (de) 1966-08-08 1967-08-08 Vorrichtung zum Kraeuseln von Textilfasern

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US570913A US3373469A (en) 1966-08-08 1966-08-08 Apparatus for crimping textile fibers

Publications (1)

Publication Number Publication Date
US3373469A true US3373469A (en) 1968-03-19

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Family Applications (1)

Application Number Title Priority Date Filing Date
US570913A Expired - Lifetime US3373469A (en) 1966-08-08 1966-08-08 Apparatus for crimping textile fibers

Country Status (5)

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US (1) US3373469A (xx)
BE (1) BE702397A (xx)
DE (1) DE1660184A1 (xx)
FR (1) FR1533741A (xx)
GB (1) GB1148366A (xx)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3662439A (en) * 1970-08-18 1972-05-16 Du Pont Stuffer box crimper lubricating system
US4395804A (en) * 1981-05-18 1983-08-02 Eastman Kodak Company Cheekplate holder assembly for stuffer box crimper
US4521944A (en) * 1984-01-23 1985-06-11 Eastman Kodak Company Dowel-aligned multiple plate stuffer box crimper construction for filter tow
US4589173A (en) * 1983-07-23 1986-05-20 Vepa Aktiengesellschaft Apparatus for crimping synthetic filament groups
US20140109363A1 (en) * 2011-06-16 2014-04-24 Nantong Cellulose Fibers Co., Ltd. Wear-resistant clamping plate device for stuffer box crimper
US20140150226A1 (en) * 2011-06-16 2014-06-05 Nantong Cellulose Fibers Co., Ltd. Wear-resistant clamping plate device for stuffer box crimper
US20160319469A1 (en) * 2014-01-02 2016-11-03 American Linc Corp. Textile stuffer box and method for texturing yarn
US20170335493A1 (en) * 2016-05-20 2017-11-23 Mitas Gaziantep Makine Imalat Sanayi ve Ticaret A.S Fixing device for stockpiling box parts of yarn crimping machines and assembly preventing attachment of yarn to pulling cylinders
CN113166981A (zh) * 2018-12-04 2021-07-23 欧瑞康纺织有限及两合公司 用于运行卷曲设备的方法和卷曲设备

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3134103B2 (ja) * 1991-03-30 2001-02-13 株式会社竹原機械研究所 繊維巻縮装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3113367A (en) * 1961-12-18 1963-12-10 Monsanto Chemicals Wear devices
US3160941A (en) * 1962-12-04 1964-12-15 Du Pont Crimping apparatus
US3218675A (en) * 1963-06-27 1965-11-23 Du Pont Apparatus for crimping fibers
US3249979A (en) * 1963-07-06 1966-05-10 British Nylon Spinners Ltd Stuffer-box crimpers

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3113367A (en) * 1961-12-18 1963-12-10 Monsanto Chemicals Wear devices
US3160941A (en) * 1962-12-04 1964-12-15 Du Pont Crimping apparatus
US3218675A (en) * 1963-06-27 1965-11-23 Du Pont Apparatus for crimping fibers
US3249979A (en) * 1963-07-06 1966-05-10 British Nylon Spinners Ltd Stuffer-box crimpers

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3662439A (en) * 1970-08-18 1972-05-16 Du Pont Stuffer box crimper lubricating system
US4395804A (en) * 1981-05-18 1983-08-02 Eastman Kodak Company Cheekplate holder assembly for stuffer box crimper
US4589173A (en) * 1983-07-23 1986-05-20 Vepa Aktiengesellschaft Apparatus for crimping synthetic filament groups
US4521944A (en) * 1984-01-23 1985-06-11 Eastman Kodak Company Dowel-aligned multiple plate stuffer box crimper construction for filter tow
US20140109363A1 (en) * 2011-06-16 2014-04-24 Nantong Cellulose Fibers Co., Ltd. Wear-resistant clamping plate device for stuffer box crimper
US20140150226A1 (en) * 2011-06-16 2014-06-05 Nantong Cellulose Fibers Co., Ltd. Wear-resistant clamping plate device for stuffer box crimper
US9322118B2 (en) * 2011-06-16 2016-04-26 Nantong Cellulose Fibers Co., Ltd. Wear-resistant clamping plate device for stuffer box crimper
US9347153B2 (en) * 2011-06-16 2016-05-24 Nantong Cellulose Fibers Co., Ltd. Wear-resistant clamping plate device for stuffer box crimper
US20160319469A1 (en) * 2014-01-02 2016-11-03 American Linc Corp. Textile stuffer box and method for texturing yarn
US10214837B2 (en) * 2014-01-02 2019-02-26 American Linc, Llc Textile stuffer box and method for texturing yarn
US20170335493A1 (en) * 2016-05-20 2017-11-23 Mitas Gaziantep Makine Imalat Sanayi ve Ticaret A.S Fixing device for stockpiling box parts of yarn crimping machines and assembly preventing attachment of yarn to pulling cylinders
CN113166981A (zh) * 2018-12-04 2021-07-23 欧瑞康纺织有限及两合公司 用于运行卷曲设备的方法和卷曲设备

Also Published As

Publication number Publication date
GB1148366A (en) 1969-04-10
FR1533741A (fr) 1968-07-19
BE702397A (xx) 1968-01-15
DE1660184A1 (de) 1971-08-12

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