US3917141A - Process and apparatus for transporting the yarn at high speed by means of a fluid under pressure - Google Patents

Process and apparatus for transporting the yarn at high speed by means of a fluid under pressure Download PDF

Info

Publication number
US3917141A
US3917141A US400563A US40056373A US3917141A US 3917141 A US3917141 A US 3917141A US 400563 A US400563 A US 400563A US 40056373 A US40056373 A US 40056373A US 3917141 A US3917141 A US 3917141A
Authority
US
United States
Prior art keywords
yarn
fluid
nozzle
downstream
nozzle means
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
US400563A
Other languages
English (en)
Inventor
Rolland Sartori
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.)
Rhone Poulenc Textile SA
Original Assignee
Rhone Poulenc Textile SA
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 Rhone Poulenc Textile SA filed Critical Rhone Poulenc Textile SA
Application granted granted Critical
Publication of US3917141A publication Critical patent/US3917141A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • B65H51/00—Forwarding filamentary material
    • B65H51/16—Devices for entraining material by flow of liquids or gases, e.g. air-blast devices
    • 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

Definitions

  • the tube has an expansion fitting disposed intermediate its ends which has a flared opening with a diameter that is greater than the diameter of the tube.
  • compressed air or another compressed fluid When compressed air or another compressed fluid is injected into the first nozzle, it entrains a strand of yarn entering the first nozzle and accelerates the yarn down the tube.
  • most of the compressed fluid escapes laterally out of the flared opening.
  • the strand of yarn continues along its initial path passing through the expansion fitting and continuing in the tube.
  • the yarn Upon exiting from the tube, the yarn traverses a gap and is entrained in a second stream of fluid injected into a second induction nozzle positioned downstream of the gap.
  • FIGS! PROCESS AND APPARATUS FOR TRANSPORTING THE YARN AT HIGH SPEED BY MEANS OF A FLUID UNDER PRESSURE BACKGROUND OF THE INVENTION This invention relates to methods of andapparatus for transporting yarn in a stream of fluid. Moreparticularly, this invention relates to methods of and apparatus for transporting yarn, wherein the yarn must traverse a gap between the outlet of one fluid transporting device and the inlet of another fluid transporting device.
  • yarn is often transported from one station to another by means of a high speed stream of fluid which captures the yarn and carries the yarn along with it. Often it is necessary to transportthe yarn to alternate stations. For example, the yarn may be transported back and forth between a f fluid delivery of the second nozzle to an amount that OBJECTS AND BRIEF DESCRIPTION OF THE INVENTION.
  • the method and apparatus of the present winding station where it is wound on bobbins, and a waste station.
  • the mechanical component can be the support for winding up the yarn. Since the yarn is now travelling along a path which passes through the winding post it combines to be marked by the second nozzle until it is gripped by an anchoring component which describes a circular movement and the purpose of which is to start the winding as the support In order that the yarn be gripped correctly by the anchoring component it must follow an exact path. Consequently, sufficient tension must be maintained on the yarn by the second induction nozzle to keep the yarn from becoming slack. In order to maintain sufficient tension, great quantities of compressed air must be injected into the second induction nozzle. This is because the strand of yarn is still being accelerated by a stream of fluid injected into the first induction nozzle.
  • the tension on the yarn between the tube and the second induction nozzle is a function, on the one hand, of the traction force generated by the second nozzle and, on the other hand, of the speed at which the yarn reaches the outlet of the tube. Accordingly, the higher this speed at the outlet, the greater the traction force necessary at the second nozzle to exert sufficient tension to accurately position the yarn for a bobbin pickup.
  • the yarn being carried by the fluid travels at the same speed as the fluid.
  • the first nozzle In order to exert enough tension on the yarn to keep it from winding back on the device from which it is delivered to the first nozzle, the first nozzle must receive a high fluid delivery. Consequently, the velocity of the fluid within the tube is high. This speed remains high throughout the tube extending from the first nozzle. In order to have.
  • the preferred method of the present invention includes initially capturing and accelerating a yarn in a stream of fluid along a predetermined path, discharging a substantial portion of the stream of fluid from the stream, and continuing the remainder of the fluid to carry the yarn along the predetermined path.
  • the preferred form of apparatus of the present invention includes an induction nozzle for initially capturing and accelerating a strand of yarn with astream of compressed fluid into a tube, and an expansion fitting located downstream of the induction nozzle to discharge a substantial portion of the stream of fluid while containing the remainder of the fluid to transport the yarn.
  • FIG. 1 there is shown a strand of yarn II which is being delivered by a device such as drawing train or feeder 12 of a drawing assembly (not shown).
  • the strand of yarn 11 is coaxially aligned with a tubular fluid transport assembly designated generally by the numeral 13.
  • a nozzle designated generally by the numeral 14
  • the nozzle 14 has a port 16 formed therein, through which a stream of compressed air is injected.
  • the stream of compressed air expands in the nozzle 14 to capture and entrain the strand of yarn 11, and carry the yarn into a first tubular section 17, which extends downstream from the nozzle 14 to confine the stream and the yarn.
  • the stream of compressed fluid and the strand of yarn 11 then pass through an expansion or discharge fitting, generally designated by the numeral 18, and into a second tubular section 19, which is coaxially aligned with the first tubular section 17.
  • the stream of fluid and strand of yarn 11 then exit from the outlet 21 of the second tubular section 19 and enter a free space defined by a gap 22.
  • a strand of yarn 1 1 can be captured by a bobbin 23 which moves through the gap, to a winding post while it is also captured by a second induction nozzle, generally designated by the numeral 24, which is positioned downstream of the gap.
  • the strand of yarn is then travelling along a path which passes through the winding post, and continues to be necked by the second nozzle until it is gripped by an anchoring component (not shown), the purpose of which being to start the winding on the support.
  • an anchoring component not shown
  • the yarn be gripped connectly by the anchoring component it must follow an exact path. This is accomplished by attracting the free end of the yarn 11 into the nozzle 24 with a second stream of air, which enters the nozzle through a port 26, thereby capturing, controlling and positioning the yarn.
  • the amount of air which must be injected through the port 26 to maintain sufficient tension on the strand of yarn 11 depends upon the speed of the strand at the outlet 21 of the tube 19. If not enough air is injected into the port 26, the strand of yarn 11 will become slack because it is being fed from the outlet 21 of the tube 19 at a greater rate than it can be pulled through the nozzle 24 by the stream of fluid entering the port 26. If the strand of yarn 11 is slack, it will not align properly with the anchoring component and, consequently, will not wind on the bobbin properly.
  • the expansion fitting 18 is positioned just' downstream of and in overlapping relationship with the end 28 of the first tubular section 17.
  • the expansion fitting 18 has a cup-shaped mouthpiece 29 with a sloping wall 31 that opens or flares upstream.
  • the maximum internal diameter of the mouthpiece 29 is greater than the external diameter of the end 28 of the tube 17, so that a stream of compressed fluid travelling down the tube 17 discharges laterally between the mouthpiece 29 and the end of the tube.
  • a shoul-, der 32 which defines a cylindrical opening 33 in the mouthpiece 29 having a diameter substantially the same as the tube 17.
  • the distance between the end 28 of the tubular section 17 and the shoulder 32 defines an aperture 34 through which a substantial portion of the stream of compressed fluid expands, while the remainder of the fluid continues down the tubular section l9 and exits from the tube at outlet 21.
  • the yarn 11 is coaxially aligned with the fluid transport system 13, it is entrained by a central core of the fluid stream. Consequently, the yarn 1 1 will be car-.
  • the fluid in the tubular section 19 will expand at a much slower rate than it expanded in the tubular section 17. This will reduce the speed of the fluid in the tubular section 19, and will therefor reduce the speed of the yarn in the tubular section 19 and at the outlet 21. By reducing the speed of the yarn at the outlet 21, less fluid will have to be injected into the nozzle 24 in order to maintain enough tension on the strand of yarn 11 to hold the yarn taut.
  • a tubular extension 36 may be attached to the tubular section 17.
  • the sliding tubular extension 36 may be secured in position on the tubular section 17 by a simple adjustment screw 37 which may be screwed in to engage the tubular section 17 to hold the tubular extension 36 in place.
  • a simple adjustment screw 37 which may be screwed in to engage the tubular section 17 to hold the tubular extension 36 in place.
  • a fluid transport assembly 13 in accordance with that shown in FIGS. 1 and 2 was designed to transport polyester yarn of a count 167 dtex delivered by the feeder 12. This device had the following dimensions:
  • the combined length of the tubular sections 17 and 19 1.5 meters the inside diameter of the tubular sections 17 and 19:
  • the apparatus of the present invention is applicable to pneumatic transport of virtually all types of yarns, both continuous and fiber yarns, comprising any type of materials, such as natural and synthetic fibers, and also yarns of virtually any count, no matter how high or low.
  • Apparatus for transporting a yarn downstream of a yarn drawing assembly comprising:
  • a first induction nozzle means for initially entraining the yarn in a stream of fluid to apply tension on the yarn and pull the yarn from the drawing assembly while providing an expanding fluid to carry the yarn downstream;
  • a fluid passage extending from the first induction nozzle means for containing the fluid so as to expand the fluid downstream in the direction of extent of the fluid passage and thereby carry the yarn downstream;
  • a second induction nozzle means spaced downstream of the fluid passage to define a gap between the second nozzle means and fluid passage, said second induction nozzle means receiving just enough fluid to apply sufficient tension on said yarn to hold said yarn taut in said gap;
  • winding means movable through said gap to capture the yarn and wind the yarn thereabout while applying sufficient tension on the yarn to wind the yarn thereabout;
  • lateral aperture means disposed in the fluid passage between the ends thereof, said aperture means dividing said passage into upstream and downstream portions and said aperture discharging laterally a portion of the stream of fluid while the yarn is transported solely by the remaining fluid through the downstream portion and to the second induction nozzle means, thereby reducing the amount of fluid that must be injected into the second nozzle means to hold the yarn taut when the yarn is not being wound on said winding means while allowing said first nozzle means to receive enough fluid to pull the yarn from the drawing assembly.
  • upstream and downstream portions of the fluid passage are tubular sections, wherein one of the tubular sections extends from the first nozzle means and wherein the tubular sections have axially aligned ends which define said lateral aperture.
  • lateral aperture is further defined by a fitting having a flared aperture which faces the end of one of the tubular sections.

Landscapes

  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
  • Preliminary Treatment Of Fibers (AREA)
US400563A 1972-09-25 1973-09-25 Process and apparatus for transporting the yarn at high speed by means of a fluid under pressure Expired - Lifetime US3917141A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7234460A FR2200834A5 (enrdf_load_stackoverflow) 1972-09-25 1972-09-25

Publications (1)

Publication Number Publication Date
US3917141A true US3917141A (en) 1975-11-04

Family

ID=9104931

Family Applications (1)

Application Number Title Priority Date Filing Date
US400563A Expired - Lifetime US3917141A (en) 1972-09-25 1973-09-25 Process and apparatus for transporting the yarn at high speed by means of a fluid under pressure

Country Status (6)

Country Link
US (1) US3917141A (enrdf_load_stackoverflow)
CH (1) CH573350A5 (enrdf_load_stackoverflow)
DE (1) DE2348167A1 (enrdf_load_stackoverflow)
FR (1) FR2200834A5 (enrdf_load_stackoverflow)
GB (1) GB1437521A (enrdf_load_stackoverflow)
IT (1) IT994483B (enrdf_load_stackoverflow)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4030651A (en) * 1976-09-21 1977-06-21 Allied Chemical Corporation Interfloor tube aspirator muffler
WO1988000440A1 (en) * 1986-07-23 1988-01-28 American Filtrona Corporation Fiber separator
US4817880A (en) * 1986-04-17 1989-04-04 Barmag Ag Yarn withdrawal appratus and method
US4880177A (en) * 1987-11-07 1989-11-14 Barmag, Ag Yarn withdrawal apparatus
US4890800A (en) * 1987-07-30 1990-01-02 Barmag, Ag Yarn withdrawal apparatus and method
US6669130B2 (en) 2001-10-26 2003-12-30 Kimberly-Clark Worldwide, Inc. Feeding string
US6830172B2 (en) 2001-10-26 2004-12-14 Kimberly-Clark Worldwide, Inc. Apparatus and method for feeding string
WO2007036242A1 (de) * 2005-09-23 2007-04-05 Oerlikon Textile Gmbh & Co. Kg Textilmaschine
US20240124261A1 (en) * 2021-02-16 2024-04-18 Rittal Gmbh & Co. Kg Arrangement for transporting a wire from a wire processing machine to a discharging point

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2286899A1 (fr) * 1974-10-01 1976-04-30 Vorobiev Alexandr Dispositif de transfert des fils pour la fabrication continue de fils artificiels
DE2749188C2 (de) * 1977-11-03 1981-11-12 Bayer Ag, 5090 Leverkusen Vorrichtung zum automatischen Einführen eines schnellaufenden Fadens in einen Fadenführungskanal einer Fadenbehandlungsvorrichtung
DE3604819A1 (de) * 1986-02-15 1987-08-20 Bayer Ag Foerderung von filamentverbaenden ueber weite foerderstrecken
ES2035177T3 (es) * 1987-07-30 1993-04-16 B A R M A G Ag Aparato de desarrollo de hilo.

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2509279A (en) * 1944-12-22 1950-05-30 American Viscose Corp Process and apparatus for treatment of filamentary materials
US2667964A (en) * 1949-04-21 1954-02-02 Du Pont Yarn handling device
US2854059A (en) * 1954-10-07 1958-09-30 Versil Ltd Apparatus for producing bonded staple lengths of grouped filaments
US3079673A (en) * 1958-06-04 1963-03-05 Reynolds Metals Co Method of inserting a close-fitting flexible heater element into an armored passage
US3756527A (en) * 1970-10-29 1973-09-04 Du Pont Method of and apparatus for threading a web of plastic film onto a windup roll and winding it thereon
US3764085A (en) * 1971-08-16 1973-10-09 Du Pont Method of and apparatus for handling material
US3834600A (en) * 1972-09-07 1974-09-10 Rhone Poulenc Textile Apparatus for the transport of yarns

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2509279A (en) * 1944-12-22 1950-05-30 American Viscose Corp Process and apparatus for treatment of filamentary materials
US2667964A (en) * 1949-04-21 1954-02-02 Du Pont Yarn handling device
US2854059A (en) * 1954-10-07 1958-09-30 Versil Ltd Apparatus for producing bonded staple lengths of grouped filaments
US3079673A (en) * 1958-06-04 1963-03-05 Reynolds Metals Co Method of inserting a close-fitting flexible heater element into an armored passage
US3756527A (en) * 1970-10-29 1973-09-04 Du Pont Method of and apparatus for threading a web of plastic film onto a windup roll and winding it thereon
US3764085A (en) * 1971-08-16 1973-10-09 Du Pont Method of and apparatus for handling material
US3834600A (en) * 1972-09-07 1974-09-10 Rhone Poulenc Textile Apparatus for the transport of yarns

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4030651A (en) * 1976-09-21 1977-06-21 Allied Chemical Corporation Interfloor tube aspirator muffler
US4817880A (en) * 1986-04-17 1989-04-04 Barmag Ag Yarn withdrawal appratus and method
WO1988000440A1 (en) * 1986-07-23 1988-01-28 American Filtrona Corporation Fiber separator
US4747814A (en) * 1986-07-23 1988-05-31 American Filtrona Corporation Fiber separator
US4890800A (en) * 1987-07-30 1990-01-02 Barmag, Ag Yarn withdrawal apparatus and method
US4880177A (en) * 1987-11-07 1989-11-14 Barmag, Ag Yarn withdrawal apparatus
US6669130B2 (en) 2001-10-26 2003-12-30 Kimberly-Clark Worldwide, Inc. Feeding string
US6830172B2 (en) 2001-10-26 2004-12-14 Kimberly-Clark Worldwide, Inc. Apparatus and method for feeding string
WO2007036242A1 (de) * 2005-09-23 2007-04-05 Oerlikon Textile Gmbh & Co. Kg Textilmaschine
US20240124261A1 (en) * 2021-02-16 2024-04-18 Rittal Gmbh & Co. Kg Arrangement for transporting a wire from a wire processing machine to a discharging point

Also Published As

Publication number Publication date
FR2200834A5 (enrdf_load_stackoverflow) 1974-04-19
IT994483B (it) 1975-10-20
GB1437521A (en) 1976-05-26
CH573350A5 (enrdf_load_stackoverflow) 1976-03-15
DE2348167A1 (de) 1974-03-28

Similar Documents

Publication Publication Date Title
US3917141A (en) Process and apparatus for transporting the yarn at high speed by means of a fluid under pressure
US3669328A (en) Yarn feeding and tensioning apparatus
US4347872A (en) Air weft insertion system
SU428616A3 (ru) Способ образования резерва и присучки пряжи при бескольцевом прядении
DE1774774C3 (de) Schußfaden-Speichervorrichtung einer Webmaschine
GB767835A (en) Improved method and apparatus for treating artificial yarn to simulate spun staple yarn, and yarn so treated
US3423000A (en) Device for accumulating filaments during spool-change
JP2840846B2 (ja) 糸貯蔵及び繰り出し装置
ES338050A1 (es) Un dispositivo para la fabricacion de un hilo voluminoso con estrechamientos regulares.
GB1197988A (en) Process for the Manufacture of a Composite Yarn which is Provided with Spaced Slubs
US3580445A (en) Guiding apparatus for eliminating entanglement and twist in puddled multifilament yarn
US4458729A (en) Strand delivery and storage system
US3640440A (en) Pneumatic circuit for controlling the feeding of yarn into a yarn magazine
US2955409A (en) Treatment of yarns
US3570776A (en) Device for feeding wire on to a bobbin
US6009915A (en) Method and distribution apparatus for pneumatic weft insertion in a series shed loom
GB1424771A (en) Process and apparatus forthe manufacture of slub yarns
US3747862A (en) Method and device for monitoring the readying of spinning cops for unwinding the same
JPH04214443A (ja) 織機のよこ糸の計量装置
US6421891B2 (en) Apparatus for processing and winding a yarn
US3645431A (en) Yarn-forwarding apparatus and process
US3968547A (en) Yarn singeing machine having a cleaning device
EP1401750B1 (de) Texturiermaschine
US5303746A (en) Method for controlling weft thread transfer from empty to full bobbin during weft insertion
GB2060719A (en) Jet loom