US3300830A - Apparatus for uniformly crimping filaments - Google Patents

Apparatus for uniformly crimping filaments Download PDF

Info

Publication number
US3300830A
US3300830A US467952A US46795265A US3300830A US 3300830 A US3300830 A US 3300830A US 467952 A US467952 A US 467952A US 46795265 A US46795265 A US 46795265A US 3300830 A US3300830 A US 3300830A
Authority
US
United States
Prior art keywords
filaments
chamber
crimping
setting
setting chamber
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
US467952A
Other languages
English (en)
Inventor
Jr Elisha Johnson
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.)
Celanese Corp
Original Assignee
Fiber Industries Inc
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 Fiber Industries Inc filed Critical Fiber Industries Inc
Priority to US467952A priority Critical patent/US3300830A/en
Priority to GB26686/66A priority patent/GB1138847A/en
Priority to NL6608949A priority patent/NL6608949A/xx
Priority to ES0328507A priority patent/ES328507A1/es
Priority to FR67519A priority patent/FR1485176A/fr
Priority to BE683369D priority patent/BE683369A/xx
Priority to CH939566A priority patent/CH452786A/fr
Application granted granted Critical
Publication of US3300830A publication Critical patent/US3300830A/en
Anticipated expiration legal-status Critical
Assigned to CELANESE CORPORATION A DE CORP reassignment CELANESE CORPORATION A DE CORP ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: FIBER INDUSTRIES INC
Expired - Lifetime legal-status Critical Current

Links

Images

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 an apparatus for uniformly crimping filaments. More particularly, this invention is directed to an improved device for crimping filaments wherein the rate of withdrawal of the filaments is constantly controlled to maintain a uniform weight in the setting chamber and to provide highly uniform crimps throughout the length of the filaments.
  • either the rate at which the feed rollers supply the filaments to the stufiiing chamber or the speed of the drawing-off rollers are controlled by means of an on and off switchor by a variable motor having two preselected speeds which are operated by means of the counter-pressure agent.
  • the slip motors which are usually used behave differently in response to slight changes in operating conditions such as hearing friction.
  • a device which is simple and inexpensive is provided for crimping filaments using the stuffing box technique wherein the amount or weight of filaments in the setting chamber controls the withdrawal of the filaments by instantaneously adjusting the speed of the take-up or wind-up means to maintain the predetermined weight in the setting chamber.
  • the use of the device of this invention provides a process for crimping wherein a constant residence time of the filaments in the setting chamber is obtained and highly uniform crimped filaments are provided.
  • a distinct advantage of the device and process of this invention is provided in the case in which equilibrium conditions of the crimping operation can be obtained and maintained.
  • the filaments 10 are passed from a supply point (not pictured) at a constant rate through paired conveyor rolls'll and 12 into a crimping or stutter chamber 13 wherein the initial'folds of the filaments 10 occur.
  • the folded filaments 10 passed from the crimping or stutter chamber 13 into a vertically movable setting chamber 14 which is separated from the stuffer chamber 13 and mounted on flexible mountings 15 and 16. This permits the setting chamber 14 to move up and down by means ofv a hinge within the limits provided by the flexible mountings 15 and 16.
  • a fixed-constriction 17 attached thereto an adjustable screw 18 to provide the necessary constriction pressure to the filaments 10 in the setting chamber.
  • heating means (not shown) in the setting chamber 14 which can provide heat in the temperature range from 25 C. to 250 C. for purposes of setting the crimp of the filaments.
  • Attached to the setting chamber 14 is a counterbalanced weight 19 maintained by a line 20 around pulleys 21 and 22 to provide the desired resistance to the setting chamber 14 to balance said chamber at the appropriate place between the flexible mountings 15 and 16 under the desired weight conditions.
  • a weight sensitive lever 23, attached to a spring means 24 is placed under tension in contact with setting chamber 14 in order that the lever 23 is movable with the movement of the setting chamber 14.
  • Lever 23 is attached to an electrical sensing device 25 for example, a potentiometer so that lever 23 actuates the electrical sensing device 25 which in turn supplies or withdraws electric current to a variable speed motor 27 controlling proportionally the speed of the bobbin spindle 28 through take-up means or rollers 26 in relationship to the desired weight of the setting chamber 14.
  • a predetermined weight of the setting device 14 is established for heat setting the crimp of filaments 10. As the filaments are folded in setting chamber 14 and compressed by the fixed restriction 17, the Weight of the filaments will cause the setting chamber 14 to move from its top position toward its bottom'position and lever 23 will move accordingly.
  • the takeup mechanism 28 through the take up or rollers 26 will begin to withdraw the crimped filaments 10 from the setting chamber 14 around an idler roll 29. If the weight I of'thesetting chamber 14 begins to exceed the required nism 28 through the take-up or rollers 26 so that a constant weight of the setting chamber 19 is maintained. If the weight of the setting chamber 14 decreases below the desired predetermined weight, the setting chamber 14 will move up along with lever 23 which actuates the potentiometer controlling the motor which will proportionally decrease instantaneously the motor speed of the take-up mechanism 28 through the take-up or rollers 26. After equilibrium i.e.
  • the control of withdrawal of the filaments can be carried out as described above with extreme accuracy and uniformity.
  • each of the filaments 10 and portions thereof are maintained in the setting chamber for a constant residency time so that a highly uniform crimped product is obtained.
  • the types of filaments which can be used in the device 3 I of this invention can include continuous synthetic filaments such as nylon 6, nylon 66, polyethylene terephthalate, polypropylene, acetate rayon, and the like and natural type fibers such as slivers of cotton, wool, and the like or combinations of natural and synthetic filaments or slivers.
  • the total denier of filaments which can be used herein can range from fine denier to heavy denier.
  • the uniformly crimped filaments of polyhexamethyl- 'eneaclipamide (nylon 66) in the total denier range from tures should exceed the'second order transition temperature and generally not exceed the softening or melting point of the filaments.
  • suitable setting temperatures can be obtainedin the range from 80 C. to 150 C. After the heat setting step has occurred and the filaments are withdrawn from the setting chamber, the filaments can be cooled if desired to obtain the permanent crimp properties.
  • the permanent crimp placed in the filaments can have a frequency from about 3 to as high as 50 crirnps per inch depending on the desired use of the filaments.
  • the important aspect of the device of this invention relates to the fact that highly uniform crimps are obtained and maintained in the" final product. i
  • An apparatus for uniformly crimping filaments which comprises: a crimping chamber, a pairof feed rolls at onetend-of said crimping chamber to initiate the folding of said filaments through said crimping chamber, a flexible mounted setting-chamber vertically movable and separated from said.crimping chamber, said setting chamber located in such'relationship tosaid crimping chamber to'receive the partially folded filaments 'at one end, fixed compression means at the other end of said setting chamber to foldsaid filaments tightly against one anothen-aweight sensing'device'attached to said flexible mounted setting chamber, a potentiometer, -means attached to saidweight sensing device and said potentiometer to transfer changes in weight to changes in electric current, a take-up mechanism for withdrawal of said filaments from said setting'chamber wherein the speed of said take-up mechanism is instantaneously controlled by said potentiometer through saidmeans attached to said potentiometer and said Weight sensing device attached to said setting chamber in
  • An apparatus for uniformly crimping filaments which comprises: a crimping chamber, a pair of feed rolls at one end of said crimping chamber to initiate the folding of said filaments through said crimping chamanother, a spring tensioned lever attached on one end to said spring mounted setting chamber and containing a rack on the other end of said spring tensioned lever which is movable with the movement of said spring mounted setting chamber, a potentiometer, an idler gear enmeshed with said rack attached to said spring tensioned lever and to said potentiometer to transfer changes in weight to changes in electric current, a take-up mechanism for withdrawal of said filaments from said setting chamber, wherein the speed of said take-up mechanism is instantaneously controlled by said potentiometer through said idler gear, rack and tensioner lever in a manner so that as thedesired predetermined'weight of filaments in said setting chamber is maintained, the desired speed of said take-up mechanism is maintained and as the weight of said filaments becomes excessive as to'the desired predetermined weight

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Treatment Of Fiber Materials (AREA)
US467952A 1965-06-29 1965-06-29 Apparatus for uniformly crimping filaments Expired - Lifetime US3300830A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
US467952A US3300830A (en) 1965-06-29 1965-06-29 Apparatus for uniformly crimping filaments
GB26686/66A GB1138847A (en) 1965-06-29 1966-06-15 Apparatus for crimping textile filaments
ES0328507A ES328507A1 (es) 1965-06-29 1966-06-28 Un aparato del tipo de prensaestopas para el rizado de filamentos textiles.
NL6608949A NL6608949A (enrdf_load_stackoverflow) 1965-06-29 1966-06-28
FR67519A FR1485176A (fr) 1965-06-29 1966-06-29 Frisage de filaments textiles à l'aide d'une boîte à friser
BE683369D BE683369A (enrdf_load_stackoverflow) 1965-06-29 1966-06-29
CH939566A CH452786A (fr) 1965-06-29 1966-06-29 Appareil servant à friser des filaments textiles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US467952A US3300830A (en) 1965-06-29 1965-06-29 Apparatus for uniformly crimping filaments

Publications (1)

Publication Number Publication Date
US3300830A true US3300830A (en) 1967-01-31

Family

ID=23857819

Family Applications (1)

Application Number Title Priority Date Filing Date
US467952A Expired - Lifetime US3300830A (en) 1965-06-29 1965-06-29 Apparatus for uniformly crimping filaments

Country Status (6)

Country Link
US (1) US3300830A (enrdf_load_stackoverflow)
BE (1) BE683369A (enrdf_load_stackoverflow)
CH (1) CH452786A (enrdf_load_stackoverflow)
ES (1) ES328507A1 (enrdf_load_stackoverflow)
GB (1) GB1138847A (enrdf_load_stackoverflow)
NL (1) NL6608949A (enrdf_load_stackoverflow)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3417447A (en) * 1965-10-21 1968-12-24 Bancroft & Sons Co J Method and apparatus for treating crimped yarn
US3905560A (en) * 1973-03-05 1975-09-16 Bancroft & Sons Co J Yarn winding mechanism
DE2733455A1 (de) * 1977-07-25 1979-02-08 Barmag Barmer Maschf Stauchkammer-texturierverfahren
US4168037A (en) * 1977-02-12 1979-09-18 Schubert & Salzer Winding apparatus
US5190202A (en) * 1989-12-01 1993-03-02 American Suessen Corporation Apparatus and method for drawing yarn from a conveyor
CN103104708A (zh) * 2011-11-09 2013-05-15 日本皮拉工业株式会社 密封填料及填料组件

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2740992A (en) * 1955-03-01 1956-04-10 Bancroft & Sons Co J Crimping and winding apparatus
US2805449A (en) * 1954-07-23 1957-09-10 Jr Albert E Martin Thickness variation measuring device
US2914262A (en) * 1955-02-11 1959-11-24 Leonard E Ludvigsen Potentiometer coil winding machine
GB964908A (en) * 1961-07-28 1964-07-29 British Nylon Spinners Ltd Improvements in or relating to the crimping of yarn
US3151820A (en) * 1960-02-27 1964-10-06 Fernseh Gmbh Winding control apparatus
US3153837A (en) * 1959-04-30 1964-10-27 Barmag Barmer Maschf Device for crimping synthetic threads
US3166821A (en) * 1962-11-26 1965-01-26 Monsanto Co Crimping apparatus
US3174206A (en) * 1961-11-29 1965-03-23 Klinger Mfg Co Ltd Apparatus for crimping yarn by bunching
US3205554A (en) * 1962-07-19 1965-09-14 British Nylon Spinners Ltd Apparatus for crimping textile strands

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2805449A (en) * 1954-07-23 1957-09-10 Jr Albert E Martin Thickness variation measuring device
US2914262A (en) * 1955-02-11 1959-11-24 Leonard E Ludvigsen Potentiometer coil winding machine
US2740992A (en) * 1955-03-01 1956-04-10 Bancroft & Sons Co J Crimping and winding apparatus
US3153837A (en) * 1959-04-30 1964-10-27 Barmag Barmer Maschf Device for crimping synthetic threads
US3151820A (en) * 1960-02-27 1964-10-06 Fernseh Gmbh Winding control apparatus
GB964908A (en) * 1961-07-28 1964-07-29 British Nylon Spinners Ltd Improvements in or relating to the crimping of yarn
US3174206A (en) * 1961-11-29 1965-03-23 Klinger Mfg Co Ltd Apparatus for crimping yarn by bunching
US3205554A (en) * 1962-07-19 1965-09-14 British Nylon Spinners Ltd Apparatus for crimping textile strands
US3166821A (en) * 1962-11-26 1965-01-26 Monsanto Co Crimping apparatus

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3417447A (en) * 1965-10-21 1968-12-24 Bancroft & Sons Co J Method and apparatus for treating crimped yarn
US3905560A (en) * 1973-03-05 1975-09-16 Bancroft & Sons Co J Yarn winding mechanism
US4168037A (en) * 1977-02-12 1979-09-18 Schubert & Salzer Winding apparatus
DE2733455A1 (de) * 1977-07-25 1979-02-08 Barmag Barmer Maschf Stauchkammer-texturierverfahren
US5190202A (en) * 1989-12-01 1993-03-02 American Suessen Corporation Apparatus and method for drawing yarn from a conveyor
CN103104708A (zh) * 2011-11-09 2013-05-15 日本皮拉工业株式会社 密封填料及填料组件

Also Published As

Publication number Publication date
BE683369A (enrdf_load_stackoverflow) 1966-12-29
CH452786A (fr) 1968-03-15
ES328507A1 (es) 1967-04-01
NL6608949A (enrdf_load_stackoverflow) 1966-12-30
GB1138847A (en) 1969-01-01

Similar Documents

Publication Publication Date Title
US3058167A (en) Crimping apparatus
US2758358A (en) Filament crimping apparatus
US3351993A (en) Method for crimping of natural and synthetic textile materials
US2734251A (en) Crimping apparatus
US2758357A (en) Apparatus for treating continuous strip material
US3000060A (en) Crimping apparatus
US3300830A (en) Apparatus for uniformly crimping filaments
US3406436A (en) Crimping process
US3166821A (en) Crimping apparatus
US3398223A (en) Process for production of crimped filaments
US3253314A (en) Crimping apparatus
US3724037A (en) Processes and apparatus for crimping synthetic filamentary materials
US3023481A (en) Yarn crimping apparatus
US3347036A (en) Helically convoluted strand
US3454998A (en) Yarn treating apparatus and method
US3345719A (en) Apparatus for continuous production of crimped filaments
US3341913A (en) Drawing and bulking of synthetic polymer yarns
US3707299A (en) Stuffer crimper with driven choke members for pressure control in the crimping zone
US3387349A (en) Differential feed roll crimper and method
US3441988A (en) Process and an apparatus for the production of crimped filaments
ES249135A1 (es) Un aparato para tratar un trozo de hilo en movimiento
US3438104A (en) Filament crimping method
US3205554A (en) Apparatus for crimping textile strands
US4035880A (en) Apparatus for drawing and crimping yarn
US3153891A (en) Process and apparatus for crimping a multi-filament yarn

Legal Events

Date Code Title Description
AS Assignment

Owner name: CELANESE CORPORATION A DE CORP

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:FIBER INDUSTRIES INC;REEL/FRAME:004239/0763

Effective date: 19841230