EP0053093A1 - Vorrichtung zum Aufdrehen einer Länge eines Textilgarnes und Vorrichtung zur Anwendung dieses Verfahrens - Google Patents

Vorrichtung zum Aufdrehen einer Länge eines Textilgarnes und Vorrichtung zur Anwendung dieses Verfahrens Download PDF

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Publication number
EP0053093A1
EP0053093A1 EP81810435A EP81810435A EP0053093A1 EP 0053093 A1 EP0053093 A1 EP 0053093A1 EP 81810435 A EP81810435 A EP 81810435A EP 81810435 A EP81810435 A EP 81810435A EP 0053093 A1 EP0053093 A1 EP 0053093A1
Authority
EP
European Patent Office
Prior art keywords
wire
fibers
vibrations
flexible element
vibrating member
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.)
Granted
Application number
EP81810435A
Other languages
English (en)
French (fr)
Other versions
EP0053093B1 (de
Inventor
Guy Negaty-Hindi
Carlos Pujol
Erwin Zurcher
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.)
SCHWEITER MASCHINENFABRIK AG
Mesdan SpA
Original Assignee
Schweiter Maschinenfabrik AG
Fomento de Inversiones Industriales SA
Mesdan 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=4343043&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0053093(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Schweiter Maschinenfabrik AG, Fomento de Inversiones Industriales SA, Mesdan SpA filed Critical Schweiter Maschinenfabrik AG
Priority to AT81810435T priority Critical patent/ATE15787T1/de
Publication of EP0053093A1 publication Critical patent/EP0053093A1/de
Application granted granted Critical
Publication of EP0053093B1 publication Critical patent/EP0053093B1/de
Expired legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • 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
    • B65H69/06—Methods of, or devices for, interconnecting successive lengths of material; Knot-tying devices ;Control of the correct working of the interconnecting device by splicing
    • 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 subject of the present invention is a method for undoing a portion of a textile thread, held by at least one of its ends, and a device for implementing this method.
  • the resistance of the piecing is extremely low because the two bundles of fibers are wound in a helix one around the other, most of the fibers then not participating in the strength of the piecing.
  • the method according to the present invention is characterized in that vibrations are communicated to the fibers so as to reduce their coefficient of friction and cause their dislocation, and that the fibers thus dislocated are subjected to a force directed so as to separate the fibers not retained at said end.
  • the device for implementing the method, also subject of the invention is characterized in that it comprises means for holding one end of the portion of wire to be undone, at least one vibrating member, means for guiding said portion of wire in the immediate vicinity of said vibrating member, means for driving this vibrating member and means for eliminating from this portion of wire fibers not retained at said end.
  • FIG. 1 shows a portion of wire F, one end of which is fixed at P and the other end of which carries a weight M of approximately 5 to 10 g.
  • the thread Under the action of the latter the thread will become untwisted. If it is a thread obtained on a slider ring loom, the weight M will fall after a certain number of turns carrying with it the untwisted fibers which are not retained in P. On the other hand, if it s is a yarn obtained by the "open-end" spinning process, all the fibers will not participate in the untwisting since some of them did not participate directly in the average twist of the yarn, so that the weight M will be retained by these fibers and will not fall.
  • FIG 1 shows, in addition, a vibrating blade L fixed on a support so that it is close to and parallel to the wire.
  • An electromagnet E supplied with current pulses by a generator G, is arranged so as to make the blade L vibrate.
  • vibrations are communicated to the fibers of the wire F, which will have the consequence the reduction of their coefficient of friction and their dislocation, so that all the fibers not retained in P will separate under the action of the weight M and this one will fall after a certain time as far as the frequencies of the blade L and the pendulum system formed by the wire F and the weight M are different and non-harmonic.
  • the frequency of the blade L is 100 Hz and the separation of the fibers, under the action of the weight M, occurs in a few seconds.
  • the free end of the wire F a bundle consisting of all the fibers retained at P, the length of which corresponds substantially to the average length of the fibers. This is an important factor in obtaining good bonding of the wire.
  • the device represented in FIG. 2 comprises a comb C associated with a sonotrode S connected, by a transducer T, to a pulse generator G.
  • the transducer T is associated with a worm screw V driven by a motor D.
  • the vibrations reducing the coefficient of friction of the fibers cause the dislocation of the latter and facilitate the progression of the teeth of the comb C.
  • the son is undone and the fibers not retained in P are separated and eliminated.
  • the vibrating member is driven pneumatically, the pressurized air being widely available in the textile industry and the range of frequencies then depending only on the natural frequency of the vibrating member which can be sized accordingly.
  • the energy transmitted to the wire can be greater than the energy developed in the device described above.
  • FIG. 4 The apparatus illustrated in FIG. 4 is essentially that shown and described in the specification of Swiss patent No ... (patent application 6379/78) to which reference may be made for more details, given that this description will be limited to the elements necessary for understanding the invention.
  • This device essentially comprises two pins 1 and 2 mounted rotatably each in a support 3 and 4 respectively, mounted oscillating in a frame 5 along an axis orthogonal to that of the spindle.
  • Each of these pins 1 and 2 ends at one of its ends with a circular head 6, respectively 7, split radially 6a, respectively 7a, to allow the wire F to engage in this circular head 6, respectively 7 and s 'wrap around pin 1, respectively 2.
  • the supports 3 and 4 are likely to occupy two positions each, one in which the pins 1 and 2 are coaxial and the other in which they are parallel one to the other. In this latter position, shown in FIG. 4, each of pins 1 and 2 is located opposite the end of a duct 8, respectively 9, connected to a source of air suction 10.
  • each of the conduits is formed of two parts 11a and 11b, respectively 12a and 12b, which extend substantially longitudinally in the conduit. These two parts are fixed to each other, for example by means of screws 13 (fig. 5).
  • a flexible flapping element constituted by a tongue 14, respectively 15, integral with a fixing lug 16, respectively .17 clamped between said parts end 11a and 11b, respectively 12a and 12b and forming with the respective tongue a T.
  • These beat elements are preferably cut from a rubber membrane about 0.25 mm thick.
  • Each of the tongues 14 and 15 is preferably located near the longitudinal axis of the respective conduit in order to be able to float freely therein.
  • the section of these conduits 8 and 9, at least in their part in which the tongue 14, respectively 15, extends, is preferably square or rectangular so that the free end of the tongue can beat against two opposite walls of the drove.
  • a comb 18 and 19 respectively is fixed.
  • a pair of scissors formed of two steel blades 22 and 23, one of which 22 is slidably mounted relative to the other 23 and each of which has an opening 24 and 25 respectively, is arranged transversely to each of the suction conduits 8 and 9.
  • each of them is introduced into one of the conduits 8 and 9 in which there is a slight depression created by the suction source 10.
  • the pins 1 and 2 are rotated in opposite directions, so that on each of them a portion of respective wire is wound because of its engagement in the slot 6a, respectively 7a, formed in the head 6, respectively 7, of spindle 1, respectively 2.
  • elbow formed in each conduit 8 and 9 below the scissors 22, 23, allows, during the winding of the wire on each of the pins 1 and 2, to induce a certain distortion of the wire in the portion between the spit and the elbow.
  • the direction of twist of the fibers in this portion must be opposite to the direction of rotation of the spindle.
  • each of the two assemblies associated with the connecting device and formed of a conduit 8, respectively 9, open at both ends, of a flexible beat element 14, respectively 15, and of a source d air suction constitutes a device implementing the method according to the present invention.
  • this device makes it possible to undo the wires which hitherto could not have been under the sole effect of the means normally included in such a reattachment device, that is to say by means of the combs 18 and 19 and air flow in conduits 8 and 9.
  • the wire is defeated in a time not exceeding one second. It is obvious that this device is far more efficient than the two devices shown in FIGS. 1 and 2 respectively. It is much more reliable, much simpler to carry out and makes it possible to reduce the duration of the operation.
  • Figures 6 and 7 illustrate another embodiment of the pneumatic device associated with a connecting device which is the subject of Swiss patent No .... (patent application No 10448/79) to which we can refer to obtain more details on the actual piecing.
  • Figs. 6 and 7 illustrate only one of the two oscillating supports 28, carrying a spindle 29 rotatably mounted about an axis orthogonal to that of oscillation of the support 28 and provided with a head 29a slotted ra dialement.
  • the other support, not shown, is perfectly similar to support 28 and is not necessary for understanding the invention since the operation of undoing the ends of the wire to be attached is carried out symmetrically on the two supports.
  • the support 28 is integral with a tubular shaft 30 to which is fixed a radial arm 31 connected to the rod of a drive piston 32.
  • An arm 33 one end of which carries a bevel gear 34, passes through the tubular shaft 30 This pinion 34 is engaged with a second bevel gear 35 wedged on the shaft of the spindle 29.
  • a plate 36 having essentially a channel 37 and a distribution chamber 40 into which opens an intake duct 38 connected to a pressurized air source 39 is fixed on the support 28.
  • the distribution chamber 40 has a nozzle 41 at the level of the channel 37, formed by a lip 42 forming a flow along the surface of this channel.
  • a bypass conduit 43 connects the chamber 40 to a bore 44 in which is fixed a cone 45 whose apex is adjacent to the bottom of the channel 37 and whose axis of revolution is perpendicular to the bypass conduit 43.
  • a second tubular shaft 46 connected to the rod of a jack 47 by a radial arm 48, is pivotally mounted around the tubular shaft 30, as well as through a frame 49.
  • This tubular shaft 46 is integral with a second radial arm 50 at the end of which is pivoted a fixing rod 51 connected to a frame 52.
  • a second fixing rod 53, fixed to the same frame 52 is pivoted through an arm 54 parallel to the radial arm 50 and articulated to the end of another radial arm 55 secured to the tubular shaft 30, so as to form a deformable parallelogram, carrying the frame 52.
  • the frame 52 carries a natural rubber membrane 56 of about 0.25 mm thick, which has a longitudinal slot 56a and two transverse slots 56b delimiting two tabs 56c whose longitudinal ends are adjacent.
  • This frame 52 is capable of occupying two positions relative to the support 28, controlled by the jack 47. In one of these positions, the frame 52 is adjacent to the plate 36 and its channel 37, in the other, shown in lines mixed with, fig. 6, it is excluded.
  • Two suction tubes 57 and 58, connected to a suction source 59 are arranged on either side of the oscillating support 28 and its plate 36, when the support is in the position shown in FIG. 6. These tubes serve to tension the wire F through the plate 36 while the frame 52 is spaced from this plate and to pass it against the edge of the slotted head 29a of the pin 29.
  • the pin 29 is entrained in rotation using the shaft 33 and the pinions 34 and 35.
  • the wire F enters the slot of the head 29a and is wound around the spindle 29.
  • the direction of rotation of the spindle is chosen so as to untwist the portion of wire between the head 29a and the suction tube 58, as explained in detail in the aforementioned Swiss patent.
  • the frame 52 carrying the membrane 56 is brought, by virtue of its carrying system with deformable parallelogram 50, 54 and 55, against the plate 36, so that the membrane 56 covers the wire located in channel 37.
  • Pressurized air is then sent to the distribution chamber 40 and from this into the channel 37.
  • the air flow passing through the channel vibrates the tabs 56c which beat the wire which is at the same time subjected to a tensile force due to the friction of the air current.
  • the yarn breaks completely and the fibers not retained by the spindle 29 are separated and eliminated by the air stream.
  • the device according to the invention incorporated in the connecting device, is formed from the channel 37, the membrane 56 with its tongues 56c, and the source of pressurized air (with the conduits connecting it to the channel 37).
  • the vibrating elements 56c driven in vibration by the air current, have been dimensioned to vibrate at frequencies of the order of 500 to 2000 Hz. It has been observed that it is in this frequency range with elements made of a material as flexible as rubber of the order of 0.2 to 0.3 mm thick capable of vibrating, at these frequencies, at amplitudes of the order of a millimeter, as the results are the best.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Coating With Molten Metal (AREA)
EP81810435A 1980-11-24 1981-10-30 Vorrichtung zum Aufdrehen einer Länge eines Textilgarnes und Vorrichtung zur Anwendung dieses Verfahrens Expired EP0053093B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81810435T ATE15787T1 (de) 1980-11-24 1981-10-30 Vorrichtung zum aufdrehen einer laenge eines textilgarnes und vorrichtung zur anwendung dieses verfahrens.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH8646/80 1980-11-24
CH864680 1980-11-24

Publications (2)

Publication Number Publication Date
EP0053093A1 true EP0053093A1 (de) 1982-06-02
EP0053093B1 EP0053093B1 (de) 1985-09-25

Family

ID=4343043

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81810435A Expired EP0053093B1 (de) 1980-11-24 1981-10-30 Vorrichtung zum Aufdrehen einer Länge eines Textilgarnes und Vorrichtung zur Anwendung dieses Verfahrens

Country Status (14)

Country Link
US (1) US4406115A (de)
EP (1) EP0053093B1 (de)
JP (1) JPS57117470A (de)
KR (1) KR830007906A (de)
AT (1) ATE15787T1 (de)
AU (1) AU541593B1 (de)
BR (1) BR8107499A (de)
CA (1) CA1179492A (de)
DD (1) DD201705A5 (de)
DE (1) DE3172449D1 (de)
ES (1) ES8304623A1 (de)
IN (1) IN155570B (de)
SU (1) SU1123541A3 (de)
ZA (1) ZA818085B (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3400233A1 (de) * 1983-01-07 1984-07-12 Elitex, koncern textilního strojírenství, Liberec Verfahren zum spleissen von faserigen gebilden, insbesondere von garnen, und vorrichtung zur durchfuehrung dieses verfahrens auf textilmaschinen
US4888943A (en) * 1987-02-20 1989-12-26 Mesdan S.P.A. Apparatus for loosening and unravelling a yarn
US5167111A (en) * 1987-07-15 1992-12-01 Mesdan S.P.A. Universal method to untwist, unravel and open up a textile yarn

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3151270A1 (de) * 1981-12-24 1983-07-07 W. Schlafhorst & Co, 4050 Mönchengladbach Verfahren und vorrichtung zum knotenfreien verbinden zweier faeden
JPS5939662A (ja) * 1982-08-27 1984-03-05 Teijin Seiki Co Ltd 糸条の結合装置
IT1218731B (it) * 1983-08-05 1990-04-19 Savio Spa Perfezionamenti al procedimento di giunzione meccanica di fili tessili, nonche' dispositivo adottante tali perfezionamenti
DE3564296D1 (en) * 1984-05-19 1988-09-15 Schubert & Salzer Maschinen Method and device for performing the piecing operation in an open-end spinning machine
DE3607206C2 (de) * 1986-03-05 1996-10-31 Schlafhorst & Co W Verfahren und Vorrichtung zum Herstellen einer Spleißverbindung
ES2021390B3 (es) * 1986-06-11 1991-11-01 Carlos Pujol-Isern Procedimiento y dispositivo para anudar dos hilos textiles.
DE4222662B4 (de) * 1992-07-10 2005-12-08 Saurer Gmbh & Co. Kg Vorrichtung zum Vorbereiten von Fadenenden
FR3037271B1 (fr) * 2015-06-12 2018-01-12 Centre Technique Des Industries Mecaniques Installation de decoupe de couche mince de materiau synthetique
JP6601229B2 (ja) 2016-01-15 2019-11-06 信越化学工業株式会社 オルガノポリシロキサン乳化組成物及び樹脂組成物

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1129480A (fr) * 1954-03-15 1957-01-22 Eastman Kodak Co Procédé et machine d'ouvraison d'une mèche de filaments continus crêpés
US3378429A (en) * 1965-01-04 1968-04-16 Branson Instr Method and apparatus for treating material with sonic energy
DE2350843A1 (de) * 1973-10-10 1975-04-24 Fritz Stahlecker Vorrichtung zum anspinnen eines fadens bei einem offen-end-spinnaggregat
DE2350844A1 (de) * 1973-10-10 1975-04-24 Fritz Stahlecker Vorrichtung zum anspinnen eines fadens bei einem offen-end-spinnaggregat

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2515172A (en) * 1948-04-30 1950-07-18 Abbott Machine Co Splicing threads
SE406755B (sv) * 1973-01-19 1979-02-26 Pujol Isern Carlos Sett for skarvning av tradar och forgarn i textilprocesser samt anordning for genomforande av settet
JPS5343218A (en) * 1976-09-30 1978-04-19 Ishikawajima Kenzai Kogyo Kk Underground tank construction method
US4229935A (en) * 1978-03-21 1980-10-28 Wain John K Joining yarns
CH623290A5 (de) 1978-06-12 1981-05-29 Fomento Inversiones Ind
JPS55101560A (en) * 1979-01-23 1980-08-02 Murata Mach Ltd Method and apparatus for joining spum yarns

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1129480A (fr) * 1954-03-15 1957-01-22 Eastman Kodak Co Procédé et machine d'ouvraison d'une mèche de filaments continus crêpés
US3378429A (en) * 1965-01-04 1968-04-16 Branson Instr Method and apparatus for treating material with sonic energy
DE2350843A1 (de) * 1973-10-10 1975-04-24 Fritz Stahlecker Vorrichtung zum anspinnen eines fadens bei einem offen-end-spinnaggregat
DE2350844A1 (de) * 1973-10-10 1975-04-24 Fritz Stahlecker Vorrichtung zum anspinnen eines fadens bei einem offen-end-spinnaggregat

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3400233A1 (de) * 1983-01-07 1984-07-12 Elitex, koncern textilního strojírenství, Liberec Verfahren zum spleissen von faserigen gebilden, insbesondere von garnen, und vorrichtung zur durchfuehrung dieses verfahrens auf textilmaschinen
US4888943A (en) * 1987-02-20 1989-12-26 Mesdan S.P.A. Apparatus for loosening and unravelling a yarn
US4890451A (en) * 1987-02-20 1990-01-02 Mesdan S.P.A. Method for loosening and unravelling a textile yarn
US5167111A (en) * 1987-07-15 1992-12-01 Mesdan S.P.A. Universal method to untwist, unravel and open up a textile yarn
US5289673A (en) * 1987-07-15 1994-03-01 Mesdan S.P.A. Device to untwist, unravel and open up a textile yarn

Also Published As

Publication number Publication date
JPS57117470A (en) 1982-07-21
KR830007906A (ko) 1983-11-07
EP0053093B1 (de) 1985-09-25
DE3172449D1 (en) 1985-10-31
BR8107499A (pt) 1982-08-10
ES507375A0 (es) 1983-03-01
JPS633820B2 (de) 1988-01-26
CA1179492A (fr) 1984-12-18
AU541593B1 (en) 1985-01-10
SU1123541A3 (ru) 1984-11-07
ES8304623A1 (es) 1983-03-01
DD201705A5 (de) 1983-08-03
ZA818085B (en) 1982-10-27
ATE15787T1 (de) 1985-10-15
US4406115A (en) 1983-09-27
IN155570B (de) 1985-02-16

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