US3247662A - Device for checking the run of the thread in a draw twisting frame or the like - Google Patents

Device for checking the run of the thread in a draw twisting frame or the like Download PDF

Info

Publication number
US3247662A
US3247662A US334414A US33441463A US3247662A US 3247662 A US3247662 A US 3247662A US 334414 A US334414 A US 334414A US 33441463 A US33441463 A US 33441463A US 3247662 A US3247662 A US 3247662A
Authority
US
United States
Prior art keywords
roller
thread
deviating
godet
godet roller
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
US334414A
Other languages
English (en)
Inventor
Jaeggli Rudolf
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.)
Maschinenfabrik Rieter AG
Original Assignee
Maschinenfabrik Rieter AG
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 Maschinenfabrik Rieter AG filed Critical Maschinenfabrik Rieter AG
Application granted granted Critical
Publication of US3247662A publication Critical patent/US3247662A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
    • D02J1/22—Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
    • D02J1/225—Mechanical characteristics of stretching apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H63/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D13/00—Complete machines for producing artificial threads
    • D01D13/02—Elements of machines in combination
    • 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

  • Thread detectors which produce greater power and operate with a snap action. These detectors are not fully automatic and must be manually returned to active position.- They respond not only to the absence of thread but also to decreasing thread tension, for example when dofling a package, and must be manually reset whenever they snap into rest position. Electronic thread checking apparatus are expensive.
  • the deviating rollers associated with the godet rollers used in drawor draw-winding frames and the like are resiliently so supported that they can only move ona predetermined path between two extreme positions and are resiliently urged to move away from the godet roller, used to form a drafting zone, into one extreme position.
  • the force acting on the roller for accomplishing this is smaller-than the resultant of the tensions of all threads passing over the roller and urging the deviating roller toward the godet roller.
  • the predetermined path on which the deviating roller can move between two predetermined extreme positions is defined by supporting the deviating roller on a lever or arm swingable between two abutments.
  • FIG. 1 is a diagrammatic illustration of a conventional thread detector in a draw twisting frame.
  • FIG. 2 is a diagrammatic illustration of a conventional
  • FIG. 4 is a diagrammatic illustration of a modified thread checking and detecting arrangement according to the invention.
  • a continuously supplied thread package consisting of a plurality of individual fibrils and henceforth called thread 1 moves around a godet roller 2 to a deviating roller 3 and once more around the roller 2 and therefrom to a drawing zone 4.
  • the thread is pulled from the drawing zone, which may be provided with a heater 5, by a godet roller 6 which rotates faster than the roller 2, and by a deviating roller 7 associated with the roller 6.
  • the thread moves past a feeler roller 8 forming part of a thread detector 9 through an eyelet or thread guide 10 to a twisting spindle 11 for twisting and winding.
  • the thread may be wound without twisting onto a bobbin driven by a friction roller as indicated by numeral 12 in FIG. 2.
  • the thread is bent out of a straight path by the feeler 8. If there is no force acting as the resultant of the tensions of the thread running on and off the feeler roller 8, as is the case, for example, when the thread is broken, a spring 8 moves the feeler roller 8 to the position shown by a dotted line in FIGURES 1 and 2 and closes a control circuit 13.
  • the deviating rollers which are associated with the godet rollers and are present in any case are used for checking the run of the thread.
  • the deviating roller 7' is mounted on a support 14 which is swingably connected by a plate spring 15 to a stationary part 16 of the draw twisting frame.
  • the device is shown in FIG. 3 in the position when the spring 15 is tensioned by the effect of the tension of the thread 1 passing around the roller 7'. If there is no thread tension, the spring 15 presses the support 14 and the roller 7' to the position shown by dash-dot lines in FIG. 3. Movement of the support 14 by the spring 15 is limited by an abutment 17.
  • roller 7' If there is thread tension, the roller 7' is moved upward until the support 14 meets an abutment 18.
  • a switch 21 controlling a circuit 20 is connected to the support 14 by means of a link 19. Downward movement of the roller 7' by the spring 15, when the thread tension is insuflicient, places the switch 21 in a position closing the circuit 20 to actuate means, not shown, for producing an optical or acoustic warning signal or the like.
  • the swing axis of an arm 22 is substantially parallel with the rotation axis of the godet roller 2.
  • the arm 22 is swingable between two abutments 24 and 25.
  • the arm 22 is rigid and a spring 26 is provided urging the arm to swing upward and abut against the abutment 25 when there is no thread tension acting on the deviating roller 3 which is rotatably mounted on the arm 22;
  • the force of the spring 26 is such that the resultant of the thread tension forces can move the arm 22 against the action of the spring downward to abut against the abutment 24.
  • a switch 27 forming part of a suitable control circuit is operatively connected to the arm 22.
  • resilient means operatively associated with said support means for urging said deviating roller to swing away from said godet roller
  • the force of said resilient means being less than the force of said thread acting on said deviating roller and switch means interposed in a control circuit and operatively connected to said support means for actuation of said switch means upon swinging of said support means away from said godet roller due to absence of sufficient thread tension to overcome the action of said resilient means.
  • stationary means said support means including an arm swin-gably connected to said stationary means, said resilient means being interposed between said stationary means and said arm.
  • support means including a rigid portion rotatably supporting said deviating roller, said support means ineluding a resilient part connecting said rigid portion to said stationary means and urging said rigid portion away from said godet roller with a forcesmaller than the force caused by the tensioned thread and urging said deviating roller toward said godet roller and switch means interposed in a control circuit and operatively connected to said rigid portion for actuating said switch means upon movement of said rigid portion away from said godet roller due to the absence of sufiicient force caused by the tensioned thread for overcoming the force exerted by said resilient part.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Quality & Reliability (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
US334414A 1963-01-05 1963-12-30 Device for checking the run of the thread in a draw twisting frame or the like Expired - Lifetime US3247662A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH2363A CH397493A (de) 1963-01-05 1963-01-05 Vorrichtung zum Überwachen des Fadenlaufes an Streckzwirnmaschinen und dergleichen

Publications (1)

Publication Number Publication Date
US3247662A true US3247662A (en) 1966-04-26

Family

ID=4177617

Family Applications (1)

Application Number Title Priority Date Filing Date
US334414A Expired - Lifetime US3247662A (en) 1963-01-05 1963-12-30 Device for checking the run of the thread in a draw twisting frame or the like

Country Status (4)

Country Link
US (1) US3247662A (de)
CH (1) CH397493A (de)
DE (2) DE1979729U (de)
GB (1) GB1036470A (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3364669A (en) * 1965-03-23 1968-01-23 Barmag Barmer Maschf Shut off deivce for stretch twist machines
US3671623A (en) * 1967-08-07 1972-06-20 Teijin Ltd Method of drawing and heat treating synthetic filaments
US3790728A (en) * 1971-06-19 1974-02-05 H Whittaker Yarn wrap detector assembly with butterfly type sensor and switch actuator
US4036267A (en) * 1975-08-07 1977-07-19 Officine Galileo Meccanotessile S.P.A. Device to detect the belt tension of weft inserting members in shuttleless looms
US4117654A (en) * 1977-11-18 1978-10-03 Institute Po Obleklo I Textil Method of and apparatus for the control of composite effect yarns
US4562694A (en) * 1983-07-07 1986-01-07 Sumar Cesar P Device for attachment to drawtwister machines to produce multifilament yarns with S or Z twist effect

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3236942A1 (de) * 1981-10-09 1983-04-28 Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid Aufspulvorrichtung fuer synthetische faeden
DE3700752A1 (de) * 1987-01-13 1988-07-21 Schlafhorst & Co W Ueberwachungseinrichtung fuer ein laufendes faserband an streckwerken
CH682569A5 (de) * 1991-01-04 1993-10-15 Benninger Ag Maschf Fadenwächter für die Ueberwachung der Fadenspannung an Textilmaschinen.
CH682568A5 (de) * 1991-01-04 1993-10-15 Benninger Ag Maschf Fadenwächter für die Ueberwachung der Fadenspannung an Textilmaschinen.

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL98626C (de) *
US2218504A (en) * 1937-02-24 1940-10-22 Goodrich Co B F Apparatus for preparing cord for making articles such as pneumatic tires, belts, andthe like
US2474912A (en) * 1946-03-16 1949-07-05 Du Pont Drawtwister
US2789316A (en) * 1952-12-17 1957-04-23 Celanese Corp Lubrication of textile apparatus
DK68684A (da) * 1984-02-15 1985-08-16 Lawrence Peter Robin B Alkaloidsalt og tryksvaerte indeholdende et saadant salt

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE524275A (de) 1953-01-12
DE1098866B (de) 1957-05-02 1961-02-02 Franz Mueller Maschinenfabrik Spulmaschine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL98626C (de) *
US2218504A (en) * 1937-02-24 1940-10-22 Goodrich Co B F Apparatus for preparing cord for making articles such as pneumatic tires, belts, andthe like
US2474912A (en) * 1946-03-16 1949-07-05 Du Pont Drawtwister
US2789316A (en) * 1952-12-17 1957-04-23 Celanese Corp Lubrication of textile apparatus
DK68684A (da) * 1984-02-15 1985-08-16 Lawrence Peter Robin B Alkaloidsalt og tryksvaerte indeholdende et saadant salt

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3364669A (en) * 1965-03-23 1968-01-23 Barmag Barmer Maschf Shut off deivce for stretch twist machines
US3671623A (en) * 1967-08-07 1972-06-20 Teijin Ltd Method of drawing and heat treating synthetic filaments
US3790728A (en) * 1971-06-19 1974-02-05 H Whittaker Yarn wrap detector assembly with butterfly type sensor and switch actuator
US4036267A (en) * 1975-08-07 1977-07-19 Officine Galileo Meccanotessile S.P.A. Device to detect the belt tension of weft inserting members in shuttleless looms
US4117654A (en) * 1977-11-18 1978-10-03 Institute Po Obleklo I Textil Method of and apparatus for the control of composite effect yarns
US4562694A (en) * 1983-07-07 1986-01-07 Sumar Cesar P Device for attachment to drawtwister machines to produce multifilament yarns with S or Z twist effect

Also Published As

Publication number Publication date
DE1979729U (de) 1968-02-29
GB1036470A (en) 1966-07-20
DE1245532B (de) 1967-07-27
CH397493A (de) 1965-08-15

Similar Documents

Publication Publication Date Title
US3247662A (en) Device for checking the run of the thread in a draw twisting frame or the like
US3354627A (en) Yarn control apparatus
US4976018A (en) Device for monitoring threads on a textile machine
US3430426A (en) Monitoring device for spinning frame
GB2023670A (en) Device for feeding threads in textile machine
US3672143A (en) Doffing apparatus and method
US3304584A (en) Drafting mechanism
US3751893A (en) Strand detection
US3873043A (en) Yarn guide- and monitoring apparatus for a bobbin creel
US2946177A (en) False twisting machines
US3869770A (en) Tight warp detector
US2023515A (en) Thread feeding mechanism
US3036421A (en) Spindle drive control
US3642218A (en) Unwinding device for filamentary material
US3271823A (en) Stop motion for textile fiber drafting machine
US2706883A (en) Thread trapping means
US3938311A (en) Yarn stop-motion device
US3452531A (en) Yarn severing device on a spinning machine stop motion
US4362009A (en) Yarn actuated stop motion device
GB960320A (en) Improvements in textile machines of the type comprising belt-driven rotary spindles
US3445894A (en) Creel stop motion responsive to sliver weight variances
US2740591A (en) Parallel strand control for winders and the like
US3034278A (en) Tension control device for yarn winder
US2922272A (en) Package size control and method
US3587219A (en) Continuous break spinning method and apparatus