US3866403A - Untwisting mechanism - Google Patents

Untwisting mechanism Download PDF

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Publication number
US3866403A
US3866403A US410955A US41095573A US3866403A US 3866403 A US3866403 A US 3866403A US 410955 A US410955 A US 410955A US 41095573 A US41095573 A US 41095573A US 3866403 A US3866403 A US 3866403A
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US
United States
Prior art keywords
spool
axis
longitudinal axis
filaments
untwisting
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
US410955A
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English (en)
Inventor
Jr Ernest H Zimmermann
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.)
Brunswick Corp
Original Assignee
Brunswick Corp
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 Brunswick Corp filed Critical Brunswick Corp
Priority to US410955A priority Critical patent/US3866403A/en
Priority to CA211,578A priority patent/CA1026631A/fr
Priority to AU74527/74A priority patent/AU477955B2/en
Priority to GB45640/74A priority patent/GB1491492A/en
Priority to NL7413921A priority patent/NL7413921A/xx
Priority to FR7436037A priority patent/FR2249014B3/fr
Priority to BE149926A priority patent/BE821537A/fr
Priority to DE19742451354 priority patent/DE2451354A1/de
Priority to JP49124832A priority patent/JPS5071939A/ja
Application granted granted Critical
Publication of US3866403A publication Critical patent/US3866403A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H49/00—Unwinding or paying-out filamentary material; Supporting, storing or transporting packages from which filamentary material is to be withdrawn or paid-out
    • B65H49/18—Methods or apparatus in which packages rotate
    • B65H49/20—Package-supporting devices
    • B65H49/28—Turntables, i.e. package resting on a table
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S57/00—Textiles: spinning, twisting, and twining
    • Y10S57/901—Antistatic

Definitions

  • ABSTRACT A device and method for partially untwisting a twisted continuous filament tow during unwinding by rotating a spool, upon which the continuous fiiament is wound, about an axis at an angle to the axis about which the continuous filament bundle is unwinding.
  • the present invention relates generally to an unspooling mechanism for continuous filaments and more specifically to a device which simultaneously unwinds and untwists twisted continuous filaments from a spool.
  • Such yarns may be formed of synthetic plastic filaments or metal filaments and be adapted to be woven into suitable textile materials such as sheets or strips, or to be embedded or otherwise disposed in other materials such as for reinforcing the same, providing antistatic characteristics,
  • a plurality of metal filaments are disposed in parallel spaced relationship with a matrix material extending between the respective filaments.
  • the bundle of filaments is radially constricted, such as by drawing of the bundle through a drawing die whereby the individual filaments and the matrix are reduced in diameter.
  • the final constricted bundle is then simply treated to remove the matrix material from the small diameter filaments, thereby providing a yarn comprised of a plurality of fine filaments.
  • the continuous filament yarn or tow is generally stored upon a spool for later use in blending devices.
  • the bundles of filaments are usually stored twisted so as to retain the structural stability of the bundles after the removal of the matrix material. Industry has experienced great difficulty in unwinding the twisted material from the spools for use in blending devices. As the bundle filaments are unwound, the twist usually backs up from the guides so that untwisted segments of a bundle are fed through the blending machine and then segments of an unusual multitude of twists per unit length are fed to the blending machine. A variation from no twist to a high degree of twist produces uneven blending and results in an unacceptable number of slubs.
  • the blending industry is faced with a two-sided problem, namely, that it is well known that a metal filament bundle having twist is easier to unspool, yet untwisted filament bundles produce blended yarns with fewer slubs.
  • Such metal filaments hold well in a blend due to their rough surfaces, however, just such a surface contributes to the difficulty in breaking into staple for blending.
  • the present device and method achieves both desired results by simultaneously unwinding and untwisting the twisted filance bundles just prior to introduction to the yarn guides of blending machines.
  • the present invention is a device and method for partially untwisting a twisted continuous filament tow during unwinding from the spool by rotating the spool about an axis at an angle relative to the longitudi nal axis of the spool about which the continuous filament bundle is unwinding.
  • the longitudinal axis of the spool is perpendicular to the axis of untwisting rotation and the midpoint of the longitudinal axis of the spool lies on the axis of untwisting rotation.
  • the untwisting rotation can be produced by a motor-driven shaft and the unwinding rotation is produced by the force exerted by a textile machine drawing on the continuous filament.
  • An eyelet through which the unwinding continuous filament passes rests on a support secured to and rotating with the motor-driven shaft.
  • the eyelet is provided with a surface which withstands the abrasion of a metallic continuous filament.
  • the spool is mounted to rotate freely on a second support, which is also mounted to the motor-driven shaft.
  • An object of the present invention is to provide an untwisting device for a spool mounted twisted continuous filament tow.
  • Another object of the invention is to provide a method and device for simultaneously untwisting and unwinding a twisted continuous filament bundle.
  • Another object of the invention is to provide an unwinding device which minimizes the formation of slubs in a blending process using bundles of continuous metal filaments.
  • Still another object is to provide a combination untwisting and unwinding device which will not substantially increse the cost of production by requiring expensive and time consuming process steps.
  • FIG. 1 is a schematic layout of an example apparatus depicting the problems of the prior art
  • FIG. 2 is a schematic layout of the apparatus and the method for carrying out the present invention
  • FIG. 3 is a perspective view of the apparatus of the present invention.
  • FIG. 4 is a perspective view of another embodiment of the apparatus of the present invention.
  • FIG. 1 depicts the problem of the prior art wherein it is desired to blend a continuous filament 10, such as continuous metal filaments, with an organic fiber sliver 12 in a machine represented generally by the introductory rolls l4 and 16.
  • the continuous filament which may be a bundle of filaments produced by the previously mentioned patents owned by the assignee herein,
  • the continuous filaments 10 are stored in twisted configuration upon a spool 18.
  • the continuous filaments 10 are drawn from a spool 18 through a guide 20 to the rolls l4 and 16. Examples of methods of blending from rolls 14 and 16 can be found in US. Pat. No. 3,678,675, owned by the assignee.
  • the twist of continuous filament 10 is pushed back from guide 20 so that initially the filament 10 has little or no twist upon entering the rolls l4 and 16.
  • the pushed back twist will present a highly twisted or an enormous number of twist per unit length filament to the rolls l4 and 16. This variance in the amount of twist per unit length of the continuous filament 10 results in uneven breaking of continuous filament l and produces unacceptable slubs in the blended yarn.
  • the present invention provides a simultaneously unwinding and untwisting of a continuous filament, preferably stored twisted on a spool.
  • the untwisting machine of the present invention is schematically shown in FIG. 2 as 22 and provides a partially untwisted filament 24 to a guide 26 which also receives two organic fiber slivers 28 and 30 which are blended by a machine represented generally by rollers 32 and 34.
  • the untwisting device 22 of the present invention is shown in FIG. 2 as providing a substantially untwisted continous filament 24 to a drawing frame, represented by rollers 32 and 34 and guide 26, the untwister ofthe present invention may also be used with wool cards and spinning frames and other yarn production devices as well.
  • the untwister has a motor 36 with a transmission or gearing device 38 which drives rotating shaft 40.
  • Control 41 determines the gear ratio of gearing device 38 so as to adjust the speed of rotating shaft 40.
  • Secured at one end of shaft 40 is a generally L-shaped support 42 to which is mounted, on a bearing surface 44, a shaft 46 upon which is mounted a spool 48 of twisted continuous filaments.
  • Also mounted to rotating shaft 40 is another L- shaped support 50 to which an eyelet 52 is attached by a member 54 and securing devices 56.
  • the continuous filament 24 is drawn from spool 48 through eyelet 52 and an insert or coating 58 is provided in eyelet 52 to withstand the abrasive character of a metallic continuous filament 24.
  • the insert or coating may be an aluminum oxide-ceramic compound (for example, Henium or Alsimag) but any other suitable material which will reduce abrasion is acceptable.
  • the driven shaft 40 defines an axis of rotation about which the longitudinal axis of spool 48 is rotated. This rotating motion provides the untwisting effect of the present invention. Simultaneously with the untwisting motion of shaft 40. support 42, and spool 48, the continuous filament 24 is drawn through eyelet 52, thus resulting in a rotation of the spool 48 around its longitudinal axis to produce unwinding. To stabilize the untwister 22 and reduce extraneous moments, all the supports and elements of the present device are centered around the axis of rotation of shaft 40. Thus, the support 42 is shaped such that the axis of rotation of shaft 40 intersects the mipoint of longitudinal axis of the spool.
  • eyelet 52 is centered upon the axis of rotation of shaft 40. This positioning of the eyelet maintains the longitudinal axis of an unwound portion of the continuous filament 24 parallel to and at times coincident with the axis of rotation ofshaft 40.
  • support 42 has been shown in both preferred embodiments to be L-shaped such that the longitudinal axis of the spool 48 is perpendicular to the axis of rotation of shaft 40, the angular relationship of these two axes may be varied.
  • the midpoint of the longitudinal axis of spool 48 lie on the axis of rotation of shaft 40 even though the angular relationship between these two axes is not orthogonal.
  • eyelet 52 need not intersect the axis of rotation of shaft 40 but may lie anywhere. The choice of the location of eyelet 52 was to minimize the moments of inertia due to rotation of the support 50 and reduce the interaction to the continuous filament 24 and eyelet 52.
  • the method and apparatus of the present invention were found to be most effective with bundles of metal filaments containing greater than 600 filaments per bundle.
  • the unspooling and untwisting of bundles above 600 has produced the greatest problem in the industry.
  • the present invention has been used with a two of 1,159 filaments of 8 micron diameter stainless steel having a twist of halfa turn per inch. These bundles are mounted on a 6-inch long spool having an inside diameter of 2 inches and an outside diameter, with the bundles wrapped thereon, of approximately 2 4 inches.
  • the spools longitudinal axis was rotated one revolution for each revolution of the spool around its longitudinal axis so as to untwist the filament bundles by approximately 30%.
  • This one-to-one relationship has been found to be satisfactory in reducing the number of slubs appearing in the blended yarn.
  • the number of revolutions of a spindles longitudinal axis will generally have to be increased so as to provide a continuous filament bundle 24 which will result in a minimum amount of slubs.
  • a device comprising a plurality of untwisting devices can be arranged so that only one motor is required.
  • a method of unwinding and untwisting a tow of filaments from a spool comprising the steps of:
  • a method of untwisting a twisted continuous filament tow being unwound from a spool comprising the step of rotating said spool about a first axis at an angle to the axis about which said filament is being unwound, wherein said tow is being unwound by being drawn into a subsequent blending operation and is being rotated about said first axis by a driving means.
  • An apparatus for untwisting a twisted continuous filament tow wound upon a spool comprising:
  • second means attached to said first means for main taining the longitudinal axis of said spool at an angle to said first axis;
  • An apparatus as in claim 10 including third means secured to said first means for maintaining the longitudinal axis of an unwound portion of said tow parallel to said first axis.
  • said third means includes an eyelet through which filament tow passes.
  • An apparatus for untwisting a twisted continuous filament tow wound upon a spool comprising:
  • second means attached to said first means for maintaining the longitudinal axis of said spool at an angle to said first axis and rotates about the spools longitudinal axis; and third means secured to said first means for maintaining the longitudinal axis of an unwound portion of said tow parallel to said first axis and including an eyelet through which said filament tow passes, said eyelet having an insert to prevent abrasion of said filament tow.
  • said second means maintains said spools longitudinal axis perpendicular to said first axis.
  • An apparatus for untwisting a twisted continuous filament tow wound on a spool comprising:
  • said first means includes a first support means on which said spool is mounted for free rotation about said longitudinal axis.
  • said first means includes a rotating shaft whose axis of rotation is said first axis and said first support means is mounted to said shaft, whereby rotation of said shaft rotates said spools longitudinal axis about said first axis.
  • An apparatus for untwisting continuous filament tow wound on on a spool comprising:
  • said spool mounted for free rotation on an L- shaped means supported by said first means and mounted on said shaft;

Landscapes

  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Unwinding Of Filamentary Materials (AREA)
US410955A 1973-10-29 1973-10-29 Untwisting mechanism Expired - Lifetime US3866403A (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
US410955A US3866403A (en) 1973-10-29 1973-10-29 Untwisting mechanism
CA211,578A CA1026631A (fr) 1973-10-29 1974-10-16 Mecanisme detordeur
AU74527/74A AU477955B2 (en) 1973-10-29 1974-10-21 Untwisting mechanism
GB45640/74A GB1491492A (en) 1973-10-29 1974-10-22 Method of blending a tow of continuous metal rough-surfaced filaments with fibre sliver
NL7413921A NL7413921A (nl) 1973-10-29 1974-10-24 Werkwijze en inrichting voor het ontstrengelen van vezelwerk.
FR7436037A FR2249014B3 (fr) 1973-10-29 1974-10-28
BE149926A BE821537A (fr) 1973-10-29 1974-10-28 Mecanisme de detorsion
DE19742451354 DE2451354A1 (de) 1973-10-29 1974-10-29 Aufdrillverfahren und -vorrichtung
JP49124832A JPS5071939A (fr) 1973-10-29 1974-10-29

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US410955A US3866403A (en) 1973-10-29 1973-10-29 Untwisting mechanism

Publications (1)

Publication Number Publication Date
US3866403A true US3866403A (en) 1975-02-18

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ID=23626950

Family Applications (1)

Application Number Title Priority Date Filing Date
US410955A Expired - Lifetime US3866403A (en) 1973-10-29 1973-10-29 Untwisting mechanism

Country Status (8)

Country Link
US (1) US3866403A (fr)
JP (1) JPS5071939A (fr)
BE (1) BE821537A (fr)
CA (1) CA1026631A (fr)
DE (1) DE2451354A1 (fr)
FR (1) FR2249014B3 (fr)
GB (1) GB1491492A (fr)
NL (1) NL7413921A (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992004139A1 (fr) * 1990-09-05 1992-03-19 W.S. Shamban & Company Appareil permettant d'enrouler un ressort a boudin
US5678400A (en) * 1996-02-08 1997-10-21 Basf Corporation Cabled yarn untwister and method
US5727373A (en) * 1993-11-12 1998-03-17 Focas Limited Apparatus and method for unwrapping fibre optic cable from an overhead line
US6205758B1 (en) * 1998-04-24 2001-03-27 Technology Finance Corporation Preparing textile fibres for testing
US20050132692A1 (en) * 2002-03-18 2005-06-23 Kwan-Young Kim Manufacturing process of untwisted yarn
WO2005123997A1 (fr) * 2004-06-17 2005-12-29 Ernst Felix Procede et dispositif pour ameliorer la qualite de fils de continu a anneaux
US20060179908A1 (en) * 2005-02-11 2006-08-17 Komax Holding Ag Method and device for processing a wire
US9833825B2 (en) * 2014-07-18 2017-12-05 Mitsubishi Aluminum Co., Ltd. Production method and production device for tube with spirally grooved inner surface
CN108893850A (zh) * 2018-08-16 2018-11-27 宁波元元之傲针织织造有限公司 一种变色的环保服装面料的加工工艺
CN111676590A (zh) * 2020-06-24 2020-09-18 新昌县高纤纺织有限公司 纺织粘胶纤维丝与金属丝双卷绕编织装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2796842B2 (ja) * 1989-07-05 1998-09-10 國允 山際 米菓の製造法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US276492A (en) * 1883-04-24 Machine for untwisting and spinning hair from and into rope
US3041817A (en) * 1957-11-09 1962-07-03 Fehrer Ernst Yarn making process
US3123968A (en) * 1964-03-10 flanigan
US3154908A (en) * 1961-07-10 1964-11-03 Fmc Corp Apparatus for treating glass roving
US3707836A (en) * 1971-04-29 1973-01-02 Rochester Corp Method and apparatus for attaching fairing strips to cables

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US276492A (en) * 1883-04-24 Machine for untwisting and spinning hair from and into rope
US3123968A (en) * 1964-03-10 flanigan
US3041817A (en) * 1957-11-09 1962-07-03 Fehrer Ernst Yarn making process
US3154908A (en) * 1961-07-10 1964-11-03 Fmc Corp Apparatus for treating glass roving
US3707836A (en) * 1971-04-29 1973-01-02 Rochester Corp Method and apparatus for attaching fairing strips to cables

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992004139A1 (fr) * 1990-09-05 1992-03-19 W.S. Shamban & Company Appareil permettant d'enrouler un ressort a boudin
US5727373A (en) * 1993-11-12 1998-03-17 Focas Limited Apparatus and method for unwrapping fibre optic cable from an overhead line
US5678400A (en) * 1996-02-08 1997-10-21 Basf Corporation Cabled yarn untwister and method
US6205758B1 (en) * 1998-04-24 2001-03-27 Technology Finance Corporation Preparing textile fibres for testing
US7207167B2 (en) * 2002-03-18 2007-04-24 Kwan-Young Kim Manufacturing process of non-twisted yarn
US20050132692A1 (en) * 2002-03-18 2005-06-23 Kwan-Young Kim Manufacturing process of untwisted yarn
WO2005123997A1 (fr) * 2004-06-17 2005-12-29 Ernst Felix Procede et dispositif pour ameliorer la qualite de fils de continu a anneaux
US20060179908A1 (en) * 2005-02-11 2006-08-17 Komax Holding Ag Method and device for processing a wire
US7647759B2 (en) * 2005-02-11 2010-01-19 Komax Holding Ag Method and device for processing a wire
US9833825B2 (en) * 2014-07-18 2017-12-05 Mitsubishi Aluminum Co., Ltd. Production method and production device for tube with spirally grooved inner surface
US10933456B2 (en) 2014-07-18 2021-03-02 Mitsubishi Aluminum Co., Ltd. Production method and production device for tube with spirally grooved inner surface
CN108893850A (zh) * 2018-08-16 2018-11-27 宁波元元之傲针织织造有限公司 一种变色的环保服装面料的加工工艺
CN111676590A (zh) * 2020-06-24 2020-09-18 新昌县高纤纺织有限公司 纺织粘胶纤维丝与金属丝双卷绕编织装置
CN111676590B (zh) * 2020-06-24 2021-08-17 新昌乐普纺织科技有限公司 纺织粘胶纤维丝与金属丝双卷绕编织装置

Also Published As

Publication number Publication date
FR2249014A1 (fr) 1975-05-23
NL7413921A (nl) 1975-05-02
GB1491492A (en) 1977-11-09
JPS5071939A (fr) 1975-06-14
CA1026631A (fr) 1978-02-21
AU7452774A (en) 1976-04-29
DE2451354A1 (de) 1975-04-30
FR2249014B3 (fr) 1977-08-05
BE821537A (fr) 1975-02-17

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