EP0069708B1 - Device for checking the yarn and the knots downstream of a slubcatcher and a knotter in yarn winding machines - Google Patents

Device for checking the yarn and the knots downstream of a slubcatcher and a knotter in yarn winding machines Download PDF

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Publication number
EP0069708B1
EP0069708B1 EP82830147A EP82830147A EP0069708B1 EP 0069708 B1 EP0069708 B1 EP 0069708B1 EP 82830147 A EP82830147 A EP 82830147A EP 82830147 A EP82830147 A EP 82830147A EP 0069708 B1 EP0069708 B1 EP 0069708B1
Authority
EP
European Patent Office
Prior art keywords
yarn
blade
slubcatcher
checking
downstream
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
Application number
EP82830147A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0069708A1 (en
Inventor
Claudio Speranzin
Ugo Gaiotti
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.)
Officine Savio SpA
Original Assignee
Officine Savio SpA
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 Officine Savio SpA filed Critical Officine Savio SpA
Priority to AT82830147T priority Critical patent/ATE19040T1/de
Publication of EP0069708A1 publication Critical patent/EP0069708A1/en
Application granted granted Critical
Publication of EP0069708B1 publication Critical patent/EP0069708B1/en
Expired 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
    • B65H63/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H69/00—Methods of, or devices for, interconnecting successive lengths of material; Knot-tying devices ;Control of the correct working of the interconnecting device
    • 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

  • This invention concerns a device for checking the yarn and the knots downstream of a slubcatcher and a knotter in yarn winding machines.
  • the invention concerns a device which enables the quality of the knots to be checked as soon as knotting has taken place and which makes it possible to ascertain whether the yarn rising towards the yarn package during winding contains tangles, slubs, broken ends of thread or other like faults.
  • Some devices which perform the task of a slubcatcher and check the knots as soon as the latter are formed.
  • another device may be required to carry out proper controls downstream from the slubcatcher and to be able to eliminate tangles in the yarn rising towards the yarn package, thereby improving the control already performed by the slubcatcher.
  • a purpose of the invention is to embody an improved single device for checking knots and for the controls downstream from the slubcatcher, whereby said device is simple in construction and reliable and provides easy operation and adjustment.
  • control on the yarn to be wound may also be conducted while such yarn is being transferred from the knotting position to the position of the slubcatcher, thereby substantially providing a continuous inspection of such yarn during the whole winding cycle.
  • the device of the invention comprises two blade means for controlling and guiding the yarn which extend lengthwise above the knotter and above the slubcatcher so as to cooperate with both of them, whereby one of such blade means is located in a pre-set and perhaps adjustable position, and whereby the other blade can be moved or rotated from its open position of rest to its closed working position.
  • the length of time of the conditions of rest or work can be varied by altering the reciprocal positions of reading means and two-cam means which cooperate with each other, whereby the position of such reading means can be regulated axially.
  • This invention is therefore embodied in a device for checking the yarn and the knots downstream of a slubcatcher and a knotter in yarn winding machines, which comprises blade means, means for opening and closing the blade means, and means for adjusting the width of a slit between such blade means (such a device being known from DE-A-2705080 or GB-A-726234), the device being characterized in that the slit comprises a first portion downstream of a knotter, which first portion checks knots formed in the yarn, and a second portion contiguous with the first portion and downstream of a slubcatcher, which second portion checks the yarn leaving the slubcatcher.
  • the device 10 of the invention comprises means 11 for checking the yarn 12 with blade means 13, whereby such blade means 13 consist of a fixed blade means 14 and of a blade means 15 which can be moved and be at least partially rotated, such two blade means being reciprocally positionable.
  • An opening or slit 16 between the two blade means 14 and 15 within which the yarn 12 is guided and slides, is obtained by regulating the reciprocal positions of the blade means 14-15 by means of suitable adjustment means 17.
  • such slit is dimensioned to suit the count of the yarn 12 and therefore the diameter thereof and in relation to the size of the faults and knots to be eliminated.
  • Figs. 1 and 2 show the means 18 which operate the opening of the blades 14-15 and which consist of a cam 19 shown in an exploded view and keyed to the horizontal knotting shaft 20, and of a reading pin 21 passing through an oscillating arm 22.
  • the axial position of the reading pin 21 can be regulated so that the pin 21 can cooperate with one of two circular crowns 23-123, which are radially superimposed one above the other and into which the cam 19, rotating in direction A (Figs. 1 and 2), is divided so as to obtain a differing length of time for the opening or closing of the blades 14-15.
  • the circular crown 23 permits the blades 14-15 to be closed for a period limited to the knotting phase, whereas the crown zone 123 causes the blades 14-15 to be closed during the normal winding phase.
  • the spring 27 is kept under axial compression between the end 30 of the piston 29 pushing against the oscillating arm 22, and a resistance point 28 on the stationary structure 26.
  • the other end 130 of the piston 29 keeps in a retracted or non-operational position the rotating blade 15, onto which such end 130 is hinged (31).
  • the rotating blade 15 comprises a second pivot 32 near to the preceding pivot 31, whereby such pivot 32 enables the blade 15 to rotate around the stationary structure 26 with an arm of rotation of which the length is equal to the distance between the two pivots 31-32 located in the end 45 of the rotating blade 15.
  • the reading pin 21 cooperates with the sector 124 of the circular crown 123 of the double cam 19 and, to be more exact, with the front part 33 thereof 19.
  • the piston 29 makes the blade 15 revolve into the closed or working position by means of its end 130 hinged 31 onto the blade 15.
  • the checking of the knot just formed can be carried out in a position or zone 34 of the lengthwise slit 16 above the knotter 36.
  • the yarn 12 can be transferred thereafter by sliding tangentially on the fixed blade 14 up to the opposite zone 134 of the slit 16 above the slubcatcher 37, the zone 134 corresponding to the position where the yarn 12 passes during the winding phase, as shown in Fig. 3.
  • the movable blade 15 is shown with lines of dashes when it is in its position of rest (opened) and with a continuous line when it is in its (closed) working position.
  • the fixed blade 14 comprises in the zone 134 a tangential porcelain guide 35, which enables the fixed blade 14 to cooperate better with the yarn 12 tangentially thereupon, and also comprises a protruding terminal stop 38, which prevents the yarn 12 from escaping the control of the blade means 13.

Landscapes

  • Engineering & Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Braiding, Manufacturing Of Bobbin-Net Or Lace, And Manufacturing Of Nets By Knotting (AREA)
  • Filamentary Materials, Packages, And Safety Devices Therefor (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
  • Looms (AREA)
EP82830147A 1981-06-25 1982-05-31 Device for checking the yarn and the knots downstream of a slubcatcher and a knotter in yarn winding machines Expired EP0069708B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82830147T ATE19040T1 (de) 1981-06-25 1982-05-31 Vorrichtung fuer die garn- und knotenueberwachung abwaerts des flusenfaengers und des knotens in wickelmaschinen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT8342381 1981-06-25
IT83423/81A IT1146487B (it) 1981-06-25 1981-06-25 Dispositivo di controllo nodo e post-stribbia per roccatrici

Publications (2)

Publication Number Publication Date
EP0069708A1 EP0069708A1 (en) 1983-01-12
EP0069708B1 true EP0069708B1 (en) 1986-04-09

Family

ID=11321670

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82830147A Expired EP0069708B1 (en) 1981-06-25 1982-05-31 Device for checking the yarn and the knots downstream of a slubcatcher and a knotter in yarn winding machines

Country Status (5)

Country Link
EP (1) EP0069708B1 (enrdf_load_stackoverflow)
JP (1) JPS5826771A (enrdf_load_stackoverflow)
AT (1) ATE19040T1 (enrdf_load_stackoverflow)
DE (1) DE3270376D1 (enrdf_load_stackoverflow)
IT (1) IT1146487B (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12129576B2 (en) 2021-09-16 2024-10-29 Belmont Textile Machinery Company Automated yarn package handling system and method

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021129446A1 (de) 2021-11-11 2023-05-11 Maschinenfabrik Rieter Ag Garnspanner, Arbeitsstelle sowie Verfahren zum Betreiben einer Arbeitsstelle

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB596999A (en) * 1944-04-07 1948-01-15 Jean Edouard Doll A new or improved device for checking and cleaning threads from a spinning or twisting operation
GB726294A (en) * 1952-10-18 1955-03-16 Zellweger Uster Ag Thread cleaning device
AT306584B (de) * 1967-09-09 1973-04-10 Elitex Zavody Textilniho Vorrichtung zur Überwachung des Arbeitens der Störungsbehebungseinrichtung an automatischen Spulmaschinen
DE2543983B1 (de) * 1975-10-02 1976-12-02 Mayer Fa Karl Garnpruefvorrichtung fuer Textilmaschinen
DE2705080C2 (de) * 1977-02-08 1983-07-21 Karl Mayer Textil-Maschinen-Fabrik Gmbh, 6053 Obertshausen Fadentastvorrichtung für Kreuzspulautomaten
DE2934544C2 (de) * 1979-08-27 1981-05-07 Karl Mayer Textil-Maschinen-Fabrik Gmbh, 6053 Obertshausen Anordnung an einer automatischen Spulmaschine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12129576B2 (en) 2021-09-16 2024-10-29 Belmont Textile Machinery Company Automated yarn package handling system and method

Also Published As

Publication number Publication date
IT8183423A0 (it) 1981-06-25
JPS5826771A (ja) 1983-02-17
JPH0343187B2 (enrdf_load_stackoverflow) 1991-07-01
IT1146487B (it) 1986-11-12
EP0069708A1 (en) 1983-01-12
DE3270376D1 (en) 1986-05-15
ATE19040T1 (de) 1986-04-15

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