US3200466A - Apparatus for crimping filaments - Google Patents

Apparatus for crimping filaments Download PDF

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Publication number
US3200466A
US3200466A US291658A US29165863A US3200466A US 3200466 A US3200466 A US 3200466A US 291658 A US291658 A US 291658A US 29165863 A US29165863 A US 29165863A US 3200466 A US3200466 A US 3200466A
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United States
Prior art keywords
filaments
tube
mass
crimped
crimping
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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US291658A
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English (en)
Inventor
Robert J Duga
Henry A Sinski
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.)
Joseph Bancroft and Sons Co
Original Assignee
Joseph Bancroft and Sons Co
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 Joseph Bancroft and Sons Co filed Critical Joseph Bancroft and Sons Co
Priority to US291658A priority Critical patent/US3200466A/en
Priority to GB24058/64A priority patent/GB1008056A/en
Priority to CH827764A priority patent/CH433578A/fr
Priority to FR980020A priority patent/FR1399992A/fr
Application granted granted Critical
Publication of US3200466A publication Critical patent/US3200466A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • D02G1/125—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using stuffer boxes including means for monitoring or controlling yarn processing

Definitions

  • This invention relates to apparatus for crimping filaments or yarns and has for an object to provide an apparatus of the above type having novel and improved means for controlling the leg length of the crimp.
  • Another object is to provide such an apparatus with means for producing a crimp having a relatively long leg length between the angular bends or folds of the filaments.
  • the leg length of the crimp is a function of the back pressure of the mass of crimped filaments on the incoming material.
  • the back pressure is dependent upon the length of the mass of crimped filaments in the tube, the friction of the filaments on the walls of the tube, and the weight of the upper closure member which rests upon the mass of filaments.
  • the length of the core of filaments in the tube is limited by the time factor which is required for setting the crimp before the filaments are discharged from the tube and the wall friction although small is a factor of the core length.
  • the top closure is commonly used as a control for maintaining a constant quantity of material in the chamber. Hence it must exert suflicient back pressure to effect the operation of a motor switch.
  • the present invention provides a control device which is responsive to the level of the crimped filaments in the cr-imper tube, but introduces no appreciable back pressure on the filaments. Hence the back pressure at the crimping zone at the bite of the feed rolls is reduced to substantially the weight of the crimped filaments themselves.
  • this control is effected by means of a balanced mercury switch which is actuated by a feeler wire resting lightly upon the mass of crimped filaments.
  • the control is eifected by a photoelectric cell so disposed that a beam of light is broken by the mass of crimped filaments when such filaments reach a predetermined level. In the first case, the back pressure on the filaments is negligible and in the latter case no back pressure is introduced.
  • FIG. 1 is a vertical section through an apparatus embodying the invention with parts broken away for clarity;
  • FIG. 2 is a partial vertical section taken on the line 22 of FIG. 1;
  • FIG. 3 is a partial vertical section taken on the line 33 of FIG. 1;
  • FIG. 4 is a vertical section, similar to FIG. 1, illustratin g a further embodiment of the invention.
  • FIG. 5 is a partial vertical section taken on the line 55 of FIG. 4;
  • FIG. 6 is a horizontal section taken on the line 6-6 of FIG. 4;
  • FIG. 7 is a sectional detail illustrating a modified form of crimping tube to be used in the embodiment of FIG.
  • FIG. 8 is a section taken on the line 88 of FIG. 7;
  • FIG. 9 is a sectional detail illustrating a further embodiment of crimping tube to be used in the apparatus of FIG. 4.
  • FIGS. 1 to 3 the invention is shown in FIGS. 1 to 3 as embodying a block 10 mounted on a bracket 11 and having a vertical bore in which a sleeve 12 is secured as 'by a press fit.
  • a tube 14 forming the crimping chamber extends through the sleeve 12 and is secured by a clamping nut 15.
  • the tube 14 is formed with a saddle registering with the bite of a pair of feed rolls 18, one of which is shown in FIG. 1 between which filaments 1? are fed into a crimping chamber to be folded over and crimped against the mass of previously crimped filaments held compacted in the tube 14.
  • the filaments 19 are guided to the bite of the feed rolls 18 by a guide 20 mounted in a bracket 11, from a cop 19a through a tensioning device 21 which exerts a friction drag on the filaments suited to maintain a uniform feed.
  • An electric heating unit 22 is disposed in the block 10 to supply heat to the filaments in the tube 14 for setting the crimp.
  • One of the feed rolls 18 is mounted on a shaft 25 which is journalled in bearing 26 in the bracket 11.
  • a pulley 27 is secure-d to the shaft and is driven by a belt 28 from a pulley 29 mounted on the armature shaft of a motor 30.
  • the tube 14 is provided near its upper end with an elongated vertical slot 35 through which a feeler wire 36 extends in a position to rest upon the upper end of the mass of crimped filaments in the tube 14.
  • the free end 37 of the feeler wire 36 is bent upwardly to provide a smooth curved surface which prevents entangling of the filaments as they are withdrawn from the open upper end 39 of the tube 14 through a slubber 40 and a swinging type tensioning device 4-1 by a constant speed winder 42 having a cone package resting on a roll 44 driven at constant speed by a motor 45.
  • the slubber 40 and tension gate 41 are mounted on a bracket 46 which is adjustably mounted on the upper end of the tube 14.
  • the projecting end 54) of the feeler wire is attached to a pin 51 which is pivoted in the bifurcated end 52 of a bracket 53 which is adjustably secured to the tube 14 by a wing nut 54 to permit vertical adjustment of the bracket and feeler wire in accordance with the quantity of crimped filaments to be maintained in the tube 14.
  • a spring clip 55 carrying a mercury switch envelope so is attached to the end 50 of the wire 36.
  • the clip 55 and the switch envelope 56 are balanced to cause the free end of the feeler wire 36 to apply a minimum pressure on the mass of crimped filaments in the tube 14. This reduces the back pressure on the mass of filaments and avoids any appreciable ironing effects as the filaments are withdrawn from the end of the tube 14. Since the back pressure is determined by the weight of the filaments in the tube this pressure can be adjusted to any desired value by raising or lowering the position of the feeler wire. As the back pressure is reduced the leg length of the resultant crimp in the filaments is increased and vice versa. Hence the crimped filaments can be caused to have a predetermined leg length by suitable adjustment of the position of the feeler wire in the slot 35.
  • the mercury switch is connected to make or break the circuit to the feed roll motor 30 or the winder motor 45 so as to maintain a constant level of crimped filaments in the tube 14.
  • the mercury switch 56 may be connected to a suitable relay such as a solenoid relay 58 which in turn is connected to control the operation of one of the motors above mentioned.
  • FIGS. 4 to 6 The embodiment of FIGS. 4 to 6 is similar to that above described except that the mercury switch and feeler wire are replaced by a photoelectric cell control for the feed or winder motor.
  • the similar parts have been designated by the same reference numbers and will not be redescribed.
  • the tube 14 is provided at its upper end with a pair of diametrically opposed vertical slots 60 through which a light beam is projected by a light source 61 onto a photoelectric cell 62.
  • the source 61 and photoelectric cell 62 are mounted on a bracket 63 which is adjustably secured on the upper end of the tube 14 by a wing nut 64 so that the height of the light beam 65 can be varied as desired.
  • the photoelectric cell 62 is connected by a relay means to control the operation of either the feed roll motor or the winder motor so as to maintain a constant level of material in the tube 14.
  • FIGS. 7 and 8 illustrate a modification of the tube 14 of FIGS. 4 to 6 wherein an insert 66 of transparent material such as glass or plastic is placed in the slots 60.
  • the inserts 66 provide a smooth inner surface for the tube and may be used in cases where the filaments are protected from contact with the edges of such slots.
  • the upper end of the tube 14 is formed of an insert 14a of transparent material to permit the light beam 65 to pass therethrough as it traverses the mass of filaments in the tube.
  • the embodiments of FIGS. 7 to 9 may be used in the apparatus of FIGS. 4 to 6 if desired.
  • Apparatus for crimping filaments or yarns comprising an elongated tube forming a crimping chamber, a pair of feed rolls positioned to feed filaments to be crimped into the bottom of said tube to be folded over and crimped against the back pressure of the mass of previously crimped filaments in said tube, a winder withdrawing the crimped filaments from the top of said tube, separate means driving said feed rolls and said winder, said tube having an elongated slot in the zone of the top of the mass of crimped filaments therein, and means responsive to the level of said mass of crimped filaments with respect to said slot to control one of said independent drive means in a sense to maintain said mass at a constant level, said last means comprising a bracket, a mercury switch pivotally mounted on said bracket and adapted to be opened or closed by pivotal movement, a feeler wire attached to .said switch and extending through said slot, said switch being substantially balanced and adapted to cause said feeler wire to rest lightly upon the mass of filaments

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
US291658A 1963-07-01 1963-07-01 Apparatus for crimping filaments Expired - Lifetime US3200466A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US291658A US3200466A (en) 1963-07-01 1963-07-01 Apparatus for crimping filaments
GB24058/64A GB1008056A (en) 1963-07-01 1964-06-10 Apparatus for crimping filaments or yarns
CH827764A CH433578A (fr) 1963-07-01 1964-06-24 Appareil pour crêper des filaments ou fils
FR980020A FR1399992A (fr) 1963-07-01 1964-06-29 Dispositif pour crêper des filaments

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US291658A US3200466A (en) 1963-07-01 1963-07-01 Apparatus for crimping filaments

Publications (1)

Publication Number Publication Date
US3200466A true US3200466A (en) 1965-08-17

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Family Applications (1)

Application Number Title Priority Date Filing Date
US291658A Expired - Lifetime US3200466A (en) 1963-07-01 1963-07-01 Apparatus for crimping filaments

Country Status (3)

Country Link
US (1) US3200466A (fr)
CH (1) CH433578A (fr)
GB (1) GB1008056A (fr)

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3292231A (en) * 1964-11-04 1966-12-20 Epstein Herman Stuffer crimping apparatus
US3345719A (en) * 1963-06-24 1967-10-10 Glanzstoff Ag Apparatus for continuous production of crimped filaments
US3353242A (en) * 1965-10-18 1967-11-21 Bancroft & Sons Co J Feed control for stuffer crimper
US3388440A (en) * 1963-07-10 1968-06-18 Techniservice Corp Strand windup treatment apparatus
US3398223A (en) * 1963-06-24 1968-08-20 Glanzstoff Ag Process for production of crimped filaments
US3413696A (en) * 1966-08-11 1968-12-03 Du Pont Apparatus for crimping yarn suitable for producing crepe fabrics
US3417447A (en) * 1965-10-21 1968-12-24 Bancroft & Sons Co J Method and apparatus for treating crimped yarn
US3430311A (en) * 1966-11-02 1969-03-04 Bancroft & Sons Co J Low tension delivery for stuffer crimper
US3478503A (en) * 1966-11-14 1969-11-18 Chavanoz Moulinage Retorderie Manufacture of a fancy yarn
US3528149A (en) * 1967-04-14 1970-09-15 Ici Ltd Crimping of yarn
US3594879A (en) * 1964-10-26 1971-07-27 Bancroft & Sons Co J Control mechanism for stuffer crimper
US3673649A (en) * 1969-01-20 1972-07-04 Elitex Zavody Textilniho Yarn feed control means
US3688356A (en) * 1969-03-13 1972-09-05 Tmm Research Ltd Wad or plug control for stuffer-box crimping apparatus
DE2324827A1 (de) * 1972-05-17 1973-11-29 Heathcoat & Co Ltd Verfahren und geraet fuer die herstellung von aufgestautem und gekraeuseltem garn
DE2346529A1 (de) * 1972-09-18 1974-04-11 Allied Chem Verfahren zum texturieren von garn und vorrichtung zur durchfuehrung des verfahrens
US3831231A (en) * 1969-08-08 1974-08-27 Fiber Industries Inc Method for producing a yarn having latent bulking characteristics
US4067092A (en) * 1976-06-16 1978-01-10 Roberts John S Compression crimping apparatus
EP0021573A1 (fr) * 1979-05-18 1981-01-07 JAMES MACKIE & SONS LIMITED Procédé et appareil de texturation de fil thermoplastique
US7278191B1 (en) * 2004-10-01 2007-10-09 Jerry Lane Apparatus and method for texturizing yarn

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2758357A (en) * 1953-10-15 1956-08-14 Alexander Smith Inc Apparatus for treating continuous strip material
US2760252A (en) * 1953-08-06 1956-08-28 Alexander Smith Inc Filament crimping apparatus
US2960730A (en) * 1957-06-13 1960-11-22 Bancroft & Sons Co J Crimping apparatus
GB878783A (en) * 1958-07-05 1961-10-04 Barmag Barmer Maschf A crimping apparatus for synthetic filaments
US3022545A (en) * 1956-09-06 1962-02-27 British Celanese Process for crimping cellulose triacetate fibers
US3058167A (en) * 1956-12-24 1962-10-16 Bancroft & Sons Co J Crimping apparatus
US3096562A (en) * 1959-12-21 1963-07-09 Bancroft & Sons Co J Method of treating fibers

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2760252A (en) * 1953-08-06 1956-08-28 Alexander Smith Inc Filament crimping apparatus
US2758357A (en) * 1953-10-15 1956-08-14 Alexander Smith Inc Apparatus for treating continuous strip material
US3022545A (en) * 1956-09-06 1962-02-27 British Celanese Process for crimping cellulose triacetate fibers
US3058167A (en) * 1956-12-24 1962-10-16 Bancroft & Sons Co J Crimping apparatus
US2960730A (en) * 1957-06-13 1960-11-22 Bancroft & Sons Co J Crimping apparatus
GB878783A (en) * 1958-07-05 1961-10-04 Barmag Barmer Maschf A crimping apparatus for synthetic filaments
US3096562A (en) * 1959-12-21 1963-07-09 Bancroft & Sons Co J Method of treating fibers

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3345719A (en) * 1963-06-24 1967-10-10 Glanzstoff Ag Apparatus for continuous production of crimped filaments
US3398223A (en) * 1963-06-24 1968-08-20 Glanzstoff Ag Process for production of crimped filaments
US3388440A (en) * 1963-07-10 1968-06-18 Techniservice Corp Strand windup treatment apparatus
US3594879A (en) * 1964-10-26 1971-07-27 Bancroft & Sons Co J Control mechanism for stuffer crimper
US3292231A (en) * 1964-11-04 1966-12-20 Epstein Herman Stuffer crimping apparatus
US3353242A (en) * 1965-10-18 1967-11-21 Bancroft & Sons Co J Feed control for stuffer crimper
US3417447A (en) * 1965-10-21 1968-12-24 Bancroft & Sons Co J Method and apparatus for treating crimped yarn
US3413696A (en) * 1966-08-11 1968-12-03 Du Pont Apparatus for crimping yarn suitable for producing crepe fabrics
US3430311A (en) * 1966-11-02 1969-03-04 Bancroft & Sons Co J Low tension delivery for stuffer crimper
US3478503A (en) * 1966-11-14 1969-11-18 Chavanoz Moulinage Retorderie Manufacture of a fancy yarn
US3528149A (en) * 1967-04-14 1970-09-15 Ici Ltd Crimping of yarn
US3673649A (en) * 1969-01-20 1972-07-04 Elitex Zavody Textilniho Yarn feed control means
US3688356A (en) * 1969-03-13 1972-09-05 Tmm Research Ltd Wad or plug control for stuffer-box crimping apparatus
US3831231A (en) * 1969-08-08 1974-08-27 Fiber Industries Inc Method for producing a yarn having latent bulking characteristics
US3961401A (en) * 1972-05-17 1976-06-08 John Heathcoat & Co. Ltd. Apparatus for the production of bulked and crimped yarn
DE2324827A1 (de) * 1972-05-17 1973-11-29 Heathcoat & Co Ltd Verfahren und geraet fuer die herstellung von aufgestautem und gekraeuseltem garn
DE2346529A1 (de) * 1972-09-18 1974-04-11 Allied Chem Verfahren zum texturieren von garn und vorrichtung zur durchfuehrung des verfahrens
US4067092A (en) * 1976-06-16 1978-01-10 Roberts John S Compression crimping apparatus
EP0021573A1 (fr) * 1979-05-18 1981-01-07 JAMES MACKIE & SONS LIMITED Procédé et appareil de texturation de fil thermoplastique
US7278191B1 (en) * 2004-10-01 2007-10-09 Jerry Lane Apparatus and method for texturizing yarn
US20070251208A1 (en) * 2004-10-01 2007-11-01 Jerry Lane Apparatus and method for texturizing yarn
US7325284B2 (en) * 2004-10-01 2008-02-05 Jerry Lane Apparatus and method for texturizing yarn

Also Published As

Publication number Publication date
GB1008056A (en) 1965-10-22
CH433578A (fr) 1967-04-15

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