US3380135A - Tow tie-in method - Google Patents

Tow tie-in method Download PDF

Info

Publication number
US3380135A
US3380135A US46041765A US3380135A US 3380135 A US3380135 A US 3380135A US 46041765 A US46041765 A US 46041765A US 3380135 A US3380135 A US 3380135A
Authority
US
United States
Prior art keywords
tow
threadline
intermediate section
method
take
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
Inventor
Carl R Wood
Joseph M Mccown
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.)
Monsanto Co
Original Assignee
Monsanto 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 Monsanto Co filed Critical Monsanto Co
Priority to US46041765 priority Critical patent/US3380135A/en
Priority claimed from FR63486A external-priority patent/FR1489110A/en
Application granted granted Critical
Publication of US3380135A publication Critical patent/US3380135A/en
Anticipated expiration legal-status Critical
Application status is Expired - Lifetime legal-status Critical

Links

Images

Classifications

    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01DMECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D7/00Collecting the newly-spun products
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01DMECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D10/00Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected
    • D01D10/04Supporting filaments or the like during their treatment
    • D01D10/0436Supporting filaments or the like during their treatment while in continuous movement

Description

April 30, 1968 R. wooo ETAL 3,380,135 I TOW. TIE-IN METHOD Filed June 1, 1965 INVENTOR. CARL R. wooo BY JOSEPH M. MC cow/v ATTORNE United States Patent 3,380,135 TOW TIE-IN METHOD Carl R. Wood, Gulf Breeze, and Joseph M. McCown, Pensacola, Fia., assignors to Monsanto Company, St. Louis, Mo., a corporation of Delaware Filed June 1, 1965, Ser. No. 460,417 8 Claims. (Cl. 2872) ABSTRACT OF THE DISCLOSURE A method of incorporating a threadline into a moving tow by severing a threadline and blowing a loose end formed thereby into the tow by means of properly directed fluid jets.

The present invention relates to a method for incorporating or tieing-in a separate threadline into a moving tow by one or more properly directed fluid jets.

Various textile manufacturing processes involve handling of tows traveling at high speeds. Heretofore it has been diflicult to incorporate a further threadline into such a moving tow without danger to operating personnel or substantially without damage to the threadline or the tow, since the tow may pass through various nip rolls, fluid baths, and the like. This problem has been effectively solved by the method and apparatus described :below.

The primary object of the invention is to provide a method for incorporating a separate threadline into a moving tow.

A further object is to provide such a method which is particularly adapted for use with a rapidly moving tow.

A further object is to provide such a method which produces minimum damage to the tow and threadline.

A further object is to provide such a method which does not require manual threading of the threadline along the entire path of the tow.

Other objects of the invention will in part be obvious and will in part appear hereinafter.

The invention accttdingly comprises the several steps and the relation of one or more of such steps with respect to each of the others thereof, which will be exemplified in the method hereinafter disclosed, and the scope of the invention will be indicated in the claims.

For a more complete understanding of the nature and objects of the invention, reference should be had to the following detailed description taken in connection with the accompanying drawings, in which:

FIGURE 1 is a schematic perspective view of an exemplary spinning machine incorporating the invention;

FIGURE 2 is a side elevation view, partly broken away, of the preferred embodiment of the tie-in apparatus; and

FIGURE 3 is a sectional view taken along line 3-3 in FIGURE 2.

The practice of the present invention is illustrated in FIGURE 1 as applied to spinning machine producing a plurality of threadlines, which are then combined in side-by-side relationship to form a tow 24. Threadline 22 is extruded from a corresponding spinneret 26, and, after solidification of the threadline, a finish liquid is applied thereto by finish wheel 28 located below spinneret 26. Threadline 22 next passes through a plurality of wraps about feed roll 30 and separator roll 32, then past an idler roll 34 to travel generally horizontally to the right as viewed in FIG. 1. Several other identical spinning positions produce other threadlines, which are successively combined as one proceeds to the right along spinning machine 20, to form the tow 24.

Tow 24 is fed past tie-in station 36 and through nip rolls 38 to take-up mechanism 40 generally illustrated as a jet piddler of the type disclosed in Koster, Patent No.

2,447,982. Tow 24 is preferably maintained under light tension in the vicinity of tie-in station 36, for example by providing a slightly greater peripheral velocity of nip rolls 38 than of feed rolls 30. By light tension is meant that the tension on the tow is below that level which would be required to significantly draw or elongate the tow.

Tie-in station 36 includes a fluid jet mechanism 42 mounted on frame member 44 adjacent tow 24. Auxiliary optional tow supporting rolls 46 and 48 are mounted on frame member 44 on opposite sides of jet mechanism 42, to support tow 24 during operation of jet mechanism 42.

As best shown in FIG. 2, an auxiliary frame member 50 extends forwardly from frame 44, and supports jet mechanism 42. Jet mechanism 42 includes a pair of isolated hemi-toroidal chambers 52 and 54 having first ends connected together by a hinge 56. A magnet 58 normally urges the opposite ends of chambers 52 and 54 into contact while permitting chambers 52 and 54 to be separated and pivoted apart about hinge 56, to facilitate in troduction of an individual threadline. Fluid supply passages 60 and 62 extend through frame 44 for supplying a pressurized fluid to the interior of chambers 52 and 54 respectively. A plurality of jet orifices 64 in each chamber extend from the chambers interiors in directions convergent on tow 24. The pressurized fluid may conveniently be air.

Referring to FIG. 3, the fluid exiting from the jet orifices 64 forms an angle a with the portion of tow between the point where the fluid stream contacts the tow and the take-up mechanism, as distinguished from angle A formed with the portion of tow between the point where the jet stream contacts the tow and spinning machine 20. The significance of these angles will be explained below.

It'may be assumed that the polymer is beginning to be extruded from the leftmost spinning position in FIG. 1, and that it is desired to add threadline 22 to the tow 24, which latter is already threaded through the entire apparatus and being collected by mechanism 40. The end of threadline 22 is caught by an auxiliary take-up means 25, which may be a conventional waste-collecting aspirator gun, such as those disclosed in US. Patents 2,634,491 or 2,667,964. Threadline 22 is then strung up around feed roll 30 and separator roll 32 and carried along under idler roll 34- to tie-in station 36. Upper chamber 52 may then be pivoted upwardly momentarily to permit placement of threadline 22 through the toroid of jet mechanism 42. Threadline 22 will now be substantially parallel with and closely adjacent tow 24, although still physically separate therefrom.

Threadline 22 is incorporated into tow 24 by momenta-rily blowing an intermediate section of the threadline into an adjacent intermediate section of the tow with a blast of fluid through jets 64, while substantially simultaneously severing the threadline at a point near the intermediate section of the threadline and between the intermediate section of the threadline and the auxiliary take-up means by turning the auxiliary take-up means perpendicular to severing means 33 and pulling threadline 22 down and across cutting edge 35. The fluid stream from the jet momentarily separates the filaments or threadlines composing tow 24 and permits the newly-cut end of threadline 22 to be forced into the interior of the tow by the fluid stream. It should be noted that the new threadline 22 need not be manually threaded through nip roll 48 and piddler 40 but that it readily threads itself along with tow 24, with very little likelihood of development of filament wraps around rolls 38.

It has been discovered that with tow speeds less than about 625 yards per minute, angle or may be between 30 and However for tow speeds greater than about 625 yards per minute, angle a must be in the range between 3 30 and 90. That is, the fluid stream from the jets must have a component which is countercurrent to the air flow generated by the moving tow. Although in the illustrated and preferred embodiment the jet mechanism 42 has been disclosed as a general toroidal member which includes a large number of inwardly directed jets, other configurations are operative. Also, severance of threadline 22 may be effected by means other than that shown in FIG. 1. For example, the illustrated structure performed satisfactorily with three-fourths of its jets plugged. A single jet, properly directed, will accomplish the same result, hence a portable or fixed aspirator gun may be readily modified to not only collect the waste yarn but to also simultaneously blast the threadline into the tow and sever the waste from the tied-in threadline. However, providing a plurality of jet orifices reduces the likelihood of operator error and renders the tie-in process much easier.

It has been found that the air pressure supplied by chambers 52 and 54 should be increased as the tow speed goes up. Thus at low speeds 40 psi. sufiices, while at speeds above about 625 yards per minute, air pressures up to 90 psi. may be required. Selection of an appropriate pressure for a given jet orifice size and a given tow speed may readily be made by one skilled in the art.

It should be noted that air is supplied to jet mechanism 42 only momentarily, during the actual tie-in operation. This not only reduces air consumption, but avoids disturbing or entangling the tow unnecessarily as might occur if air were continually supplied to jet mechanism 42.

Although the above description has referred to tow 24 as including a large number of individual threadlines, which is normally the case, the present method would be equally satisfactory if tow 24 consisted of a single threadline. Thus only the first threadline must be threaded through the entire system; later threadlines may be readily tied in to any running threadline or tow by the present method. This cannot be accomplished on friction and false twist type tie-in devices, which may require as many as eight 2700 denier single ends to be running before another end or threadline can be consistently tied in at high speed. It should likewise be understood that neither the tow source nor the threadline source need be a spinning machine.

It will thus be seen that the objects set forth above, among those made apparent from the preceding description, are efficiently attained and, since certain changes may be madein carrying out the above method and in the construction set forth without departing from the scope of the invention, it is intended that all matter contained in the above description or shown in the accompany drawing shall be interpreted as illustrative and not in a limiting sense.

It is also to be understood that the following claims are intended to cover all of the generic and specific features of the invention herein described, and all statements of the scope of the invention which, as a matter of language, might be said to fall therebetween.

Having described my invention, what I claim as new and desire to secure by Letters Patent is:

1. A method for incorporating a separate threadline into a tow moving from a source to take-up means, said method comprising, in combination:

(a) momentarily blowing an intermediate section of said threadline into an adjacent intermediate section of said tow with at least one fluid jet directed toward said tow at an angle a greater than about 30 and less than about 150,

(b) and substantially simultaneously severing said threadline at a point near said intermediate section and between said intermediate section of said threadline and said take-up means.

2. A method for incorporating a separate threadline into a tow moving at a speed greater than about 625 yards per minute from a source to take-up means, said method comprising, in combination:

(a) momentarily blowing an intermediate section of said threadline into an adjacent intermediate section of said tow with at least one fluid jet directed toward said tow at an angle a greater than about 30 and less than about (b) and substantially simultaneously severing said threadline at a point near said intermediate section and between said intermediate section of said threadline and said take-up means.

3. A method for incorporating a separate threadline into a tow moving from a source to take-up means, said method comprising, in combination:

(a) momentarily blowing an intermediate section of said threadline into an adjacent intermediate section of said tow with a plurality of fluid jets directed toward said tow at angle 06 greater than about 30 and less than about (b) and substantially simultaneously severing said threadline at a point near said intermediate section and between said intermediate section of said threadline and said take-up means.

4. A method for incorporating a threadline into a tow moving at a speed greater than about 625 yards per minute from a source to take-up means, said method comprising, in combination:

(a) momentarily blowing an intermediate section of said threadline into an adjacent intermediate section of said tow with a plurality of fluid jets directed toward said tow at angles a greater than about 30 and less than about 90,

(b) and substantially simultaneously severing said threadline at a point near said intermediate section and between said intermediate section of said threadline and said take-up means.

5. A method for incorporating a threadline into a tow moving from a source to a tow take-up means, said method comprising, in combination:

(a) continuously collecting said threadline with an auxiliary take-up means while aligning said threadline substantially parallel with and closely adjacent said tow,

(b) and substantially simultaneously:

(1) momentarily blowing an intermediate section of said threadline into an adjacent intermediate section of said tow with at least one fluid jet directed toward said tow at an angle a greater than about 30 and less than about 150,

(2) and severing said threadline at a point near said intermediate section and between said intermediate section of said threadline and said auxiliary take-up means.

6. A method for incorporating a threadline into a tow moving at a speed greater than about 625 yards per minute from a source to a tow take-up means, said method comprising, in combination:

(a) continuously collecting said threadline with an auxiliary take-up means while aligning said threadline substantially parallel with and closely adjacent said tow,

(b) and substantially simultaneously:

(1) momentarily blowing an intermediate section of said threadline into an adjacent intermediate section of said tow with at least one fluid jet directed toward said tow at an angle a. greater than about 30 and less than about 90,

(2) and severing said threadline at a point near said intermediate section and between said intermediate section of said threadline and said auxiliary take-up means.

7. A method for incorporating a threadline into a tow moving from a source to a tow take-up means, said method comprising, in combination:

(a) continuously collecting said threadline with an auxiliary take-up means while aligning said threadline substantially parallel with and closely adjacent said tow,

(b) and substantially simultaneously:

(1) momentarily blowing an intermediate section of said threadline into an adjacent intermediate section of said tow with a plurality of fluid jets directed toward said tow at angles a greater than about 30 and less than about 150,

(2) and severing said threadline at a point near said intermediate section and between said intermediate section of said threadline and said auxiliary take-up means.

8. A method for incorporating a threadline into a tow moving at a speed greater than about 625 yards per minute from a source to a tow take-up means, said method comprising, in combination:

(a) continuously collecting said threadline with an auxiliary take-up means while aligning said threadline substantially parallel with and closely adjacent said tow, 1

(b) and substantially simultaneously:

(1) momentarily blowing an intermediate section (2) and severing said threadline at a point near said intermediate section and between said intermediate section of said threadline and said auxiliary take-up means.

References Cited UNITED STATES PATENTS Miller 22697 Penland 28-72 Ashby et a1. 22697 X Fish 5734 Gonsalves 57--22 X McDonald 2847 X 20 LOUIS K. RIMRODT, Primary Examiner.

US46041765 1965-06-01 1965-06-01 Tow tie-in method Expired - Lifetime US3380135A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US46041765 US3380135A (en) 1965-06-01 1965-06-01 Tow tie-in method

Applications Claiming Priority (10)

Application Number Priority Date Filing Date Title
NL129516D NL129516C (en) 1965-06-01
US46041765 US3380135A (en) 1965-06-01 1965-06-01 Tow tie-in method
NL6607434A NL6607434A (en) 1965-06-01 1966-05-27
IL2586866A IL25868A (en) 1965-06-01 1966-05-29 Tow tie-in method
FR63486A FR1489110A (en) 1965-06-01 1966-05-31 An apparatus for incorporating a separate strand in a cable in translation, in spinning machines
GB2424066A GB1122532A (en) 1965-06-01 1966-05-31 Tow tie-in method
LU51220A LU51220A1 (en) 1965-06-01 1966-05-31
CH781766A CH465132A (en) 1965-06-01 1966-05-31 Method for incorporating a separate strand in a cable and apparatus for its implementation
BE681911D BE681911A (en) 1965-06-01 1966-06-01
DE19661660477 DE1660477A1 (en) 1965-06-01 1966-06-01 Method and apparatus for integrating a single thread with a thread

Publications (1)

Publication Number Publication Date
US3380135A true US3380135A (en) 1968-04-30

Family

ID=23828618

Family Applications (1)

Application Number Title Priority Date Filing Date
US46041765 Expired - Lifetime US3380135A (en) 1965-06-01 1965-06-01 Tow tie-in method

Country Status (8)

Country Link
US (1) US3380135A (en)
BE (1) BE681911A (en)
CH (1) CH465132A (en)
DE (1) DE1660477A1 (en)
GB (1) GB1122532A (en)
IL (1) IL25868A (en)
LU (1) LU51220A1 (en)
NL (2) NL6607434A (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3458905A (en) * 1966-07-05 1969-08-05 Du Pont Apparatus for entangling fibers
US3474615A (en) * 1968-09-03 1969-10-28 Techniservice Corp Splicing of textile strands
US3487618A (en) * 1967-06-28 1970-01-06 Fiber Industries Inc Yarn splicing
US3511905A (en) * 1967-08-22 1970-05-12 Viscose Suisse Soc Process for the preparation of synthetic polymer filaments
US3732678A (en) * 1971-11-04 1973-05-15 Du Pont Apparatus for joining filaments to a tow
DE2413449A1 (en) * 1973-03-20 1974-10-10 Du Pont A method for selbsttaetigen piecing of a broken yarn path
US4002013A (en) * 1976-01-13 1977-01-11 E. I. Du Pont De Nemours And Company Process and apparatus
US4143506A (en) * 1977-12-23 1979-03-13 Owens-Corning Fiberglas Corporation Method and apparatus for introducing a strand into a continuously advancing roving
US4254610A (en) * 1978-11-20 1981-03-10 Owens-Corning Fiberglas Corporation Strand splicing apparatus
US4788814A (en) * 1987-08-26 1988-12-06 Fieldcrest Cannon, Inc. Textile winder equipped with air splicer and attendant method
US4825630A (en) * 1987-08-26 1989-05-02 Fieldcrest Cannon, Inc. Method and apparatus for air splicing yarn
US4829758A (en) * 1987-04-18 1989-05-16 Spinnereimaschinenfabrik Seydel & Co. Gmbh Apparatus for splicing and entwining fiber slivers
US4833872A (en) * 1987-08-26 1989-05-30 Fieldcrest Cannon, Inc. Method and apparatus for air splicing yarn in a textile creel

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2648890A (en) * 1951-01-04 1953-08-18 Du Pont Apparatus and method for combining yarns
US2667964A (en) * 1949-04-21 1954-02-02 Du Pont Yarn handling device
US3000168A (en) * 1957-08-21 1961-09-19 American Enka Corp Method and apparatus for producing bulky yarn
US3156395A (en) * 1960-11-25 1964-11-10 Du Pont Fluid pressure method for transferring yarn
US3253396A (en) * 1959-06-01 1966-05-31 Beaunit Corp Method and apparatus for making textured yarn and product
US3273330A (en) * 1962-11-14 1966-09-20 American Enka Corp Method for forming a thread joint

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2667964A (en) * 1949-04-21 1954-02-02 Du Pont Yarn handling device
US2648890A (en) * 1951-01-04 1953-08-18 Du Pont Apparatus and method for combining yarns
US3000168A (en) * 1957-08-21 1961-09-19 American Enka Corp Method and apparatus for producing bulky yarn
US3253396A (en) * 1959-06-01 1966-05-31 Beaunit Corp Method and apparatus for making textured yarn and product
US3156395A (en) * 1960-11-25 1964-11-10 Du Pont Fluid pressure method for transferring yarn
US3273330A (en) * 1962-11-14 1966-09-20 American Enka Corp Method for forming a thread joint

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3458905A (en) * 1966-07-05 1969-08-05 Du Pont Apparatus for entangling fibers
US3487618A (en) * 1967-06-28 1970-01-06 Fiber Industries Inc Yarn splicing
US3511905A (en) * 1967-08-22 1970-05-12 Viscose Suisse Soc Process for the preparation of synthetic polymer filaments
US3474615A (en) * 1968-09-03 1969-10-28 Techniservice Corp Splicing of textile strands
US3732678A (en) * 1971-11-04 1973-05-15 Du Pont Apparatus for joining filaments to a tow
DE2413449A1 (en) * 1973-03-20 1974-10-10 Du Pont A method for selbsttaetigen piecing of a broken yarn path
US3863435A (en) * 1973-03-20 1975-02-04 Du Pont Method for restringing a threadline
US4002013A (en) * 1976-01-13 1977-01-11 E. I. Du Pont De Nemours And Company Process and apparatus
US4143506A (en) * 1977-12-23 1979-03-13 Owens-Corning Fiberglas Corporation Method and apparatus for introducing a strand into a continuously advancing roving
DK152033B (en) * 1977-12-23 1988-01-25 Owens Corning Fiberglass Corp A process for preparing a combined yarn and apparatus for carrying out the method.
US4254610A (en) * 1978-11-20 1981-03-10 Owens-Corning Fiberglas Corporation Strand splicing apparatus
US4829758A (en) * 1987-04-18 1989-05-16 Spinnereimaschinenfabrik Seydel & Co. Gmbh Apparatus for splicing and entwining fiber slivers
US4788814A (en) * 1987-08-26 1988-12-06 Fieldcrest Cannon, Inc. Textile winder equipped with air splicer and attendant method
US4825630A (en) * 1987-08-26 1989-05-02 Fieldcrest Cannon, Inc. Method and apparatus for air splicing yarn
US4833872A (en) * 1987-08-26 1989-05-30 Fieldcrest Cannon, Inc. Method and apparatus for air splicing yarn in a textile creel

Also Published As

Publication number Publication date
NL129516C (en)
NL6607434A (en) 1966-12-02
LU51220A (en)
IL25868A (en) 1970-03-22
BE681911A (en) 1966-12-01
DE1660477A1 (en) 1971-02-11
CH465132A (en) 1968-11-15
LU51220A1 (en) 1966-12-01
GB1122532A (en) 1968-08-07

Similar Documents

Publication Publication Date Title
US3485428A (en) Method and apparatus for pneumatically depositing a web
US2985995A (en) Compact interlaced yarn
US2379824A (en) Process and apparatus for treating artificial filaments
US2783609A (en) Bulky continuous filament yarn
US3296785A (en) Production of interlaced plied yarn from slub yarn and carrier yarn by means of fluid jets
US3807270A (en) Apparatus for cutting a thread on a draw-spin-winding machine
US3113413A (en) Apparatus and method for producing volumized slub yarn
US3055080A (en) Apparatus for fluid treatment of tow and yarn bundles
US3978648A (en) Helically wrapped yarn
US3115691A (en) Apparatus for interlacing multifilament yarn
US2852906A (en) Method and apparatus for producing bulky continuous filament yarn
EP0906459B1 (en) False twist texturizing machine
US3417445A (en) Method and apparatus for producing a voluminous yarn with uniformly spaced bindings
US3881231A (en) Cylindrical baffle for yarn texturing air jet
US3364537A (en) Apparatus for interlacing multifilament yarn
US3353344A (en) Fluid jet twister
US3017737A (en) Method and apparatus for producing bulky continuous filament yarn
US7322811B2 (en) Apparatus for spinning and winding multifilament yarns
US2432355A (en) Manufacture of staple fiber yarns and tows
US3022566A (en) False twisted yarn beam
US4043718A (en) Spinning apparatus with retractable suction gun
US3357074A (en) Apparatus for the production of fluid entangled non-woven fabrics
US3091908A (en) Apparatus and method for false twisting yarns
US3445995A (en) Strand twisting apparatus
CN1052271C (en) False twist crimping machine