EP0432030A1 - Vorrichtung zur Herstellung von Geflechtgarnen - Google Patents

Vorrichtung zur Herstellung von Geflechtgarnen Download PDF

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Publication number
EP0432030A1
EP0432030A1 EP90403434A EP90403434A EP0432030A1 EP 0432030 A1 EP0432030 A1 EP 0432030A1 EP 90403434 A EP90403434 A EP 90403434A EP 90403434 A EP90403434 A EP 90403434A EP 0432030 A1 EP0432030 A1 EP 0432030A1
Authority
EP
European Patent Office
Prior art keywords
needle
rotation
spindle
wire
hollow spindle
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.)
Withdrawn
Application number
EP90403434A
Other languages
English (en)
French (fr)
Inventor
Robert Guigal
Jacques Maguin
André Lyonnet
Régis Lacroix
Robert Ogliengo
Jean-Claude Gianfalla
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.)
Institut Textile de France
Original Assignee
Institut Textile de France
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 Institut Textile de France filed Critical Institut Textile de France
Publication of EP0432030A1 publication Critical patent/EP0432030A1/de
Withdrawn legal-status Critical Current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
    • D02G3/34—Yarns or threads having slubs, knops, spirals, loops, tufts, or other irregular or decorative effects, i.e. effect yarns
    • D02G3/343—Yarns or threads having slubs, knops, spirals, loops, tufts, or other irregular or decorative effects, i.e. effect yarns using hollow spindles

Definitions

  • the present invention relates to the production of yarns, in particular fancy yarns, by mesh, that is to say of yarns whose structure consists of a stack of stitches made from one or more elementary yarns. It relates more particularly to a device for the high speed production of such wires.
  • French device FR.A.2.563.245 discloses a device making it possible to produce yarns of this type, in particular fancy yarns from at least two elementary yarns.
  • This known device is disposed between the source of supply of the elementary wires and the means of winding the fancy wire formed. It comprises, mounted on a common support, a hollow rotary spindle inside which passes the produced yarn, said spindle supporting and driving in rotation at least one knitting needle, means making it possible to present at least one of the threads elementary in the beak of the needle during the rotation of the spindle and a fixed assembly making it possible to carry out the felling of the meshes formed on the needle and the guiding of the wire produced inside the internal channel of the hollow spindle.
  • the embodiment which is described in this document and illustrated by the drawings only refers to one type of knitting needle, namely a palette or flap needle or "self-acting" needle. Contrary to the usual formation of the mesh where the needle receives a movement from top to bottom defining the operations called picking and felling, in the present case the needle receives a circular movement around a fixed assembly, for example a cam with a particular profile, which transmits to the wire a movement from top to bottom thus carrying out the picking and the felling, with closing and opening of the valve for each formation of a mesh.
  • a fixed assembly for example a cam with a particular profile
  • the valve of the needle having to open and close at each revolution of the spindle, the production speed of the device is therefore limited to the possibilities of movement of the needle valve.
  • the spindle rotation speed was 1000 rpm with a draw speed of the wire formed of 120 m / min; the length of each mesh was therefore 120 mm.
  • the aim which the applicant has set for himself is to improve the known device by increasing the speed of rotation of the hollow spindle so as to obtain greater productivity and / or a smaller mesh size, for example by achieving speeds of 15,000 rpm.
  • the needle being a simple hook needle, without valve, the device comprises means for driving the needle in rotation on itself at the same angular speed and in the opposite direction to the rotation of the brooch.
  • the needle nose keeps strictly the same orientation during the rotation of the hollow pin which supports and drives the needle in rotation. This allows the formation of the mesh, the wire surrounding the barrel of the needle passing behind the hook during felling.
  • the means for driving the needle on itself are driven by the rotation of the hollow spindle.
  • the hollow spindle comprises two identical second parts which are arranged symmetrically with respect to the first part.
  • the parts are, according to the preferred version of the invention, toothed pulleys and the drive system of the second pulley (s) by the first pulley consists of a toothed belt.
  • the parts can also be pinions, the teeth of the first pinion meshing with the teeth of the second pinion (s), ensuring the drive of the latter.
  • FIG. 1 shows the production of a fancy yarn 4 from two elementary yarns 1, 2 thanks to the device 3 of the invention.
  • This device comprises, mounted on a common support 5, a hollow pin 6 whose cylindrical body supports a needle 7 without valve and is rotated by the fixing strap 11.
  • Two fixed cams 9, 10 are placed under the hollow pin 6 ; the particular profile of these two cams 9, 10 determines between them a passage 12, making it possible to ensure the felling of the mesh and the guiding of the wire formed inside the internal channel during the rotation of the needle 7 around of the two cams 9, 10.
  • the two wires 1, 2 are presented alternately in the hook of the needle 7 thanks to the presentation device 8.
  • FIG. 2 shows the improved structure of the hollow spindle 6.
  • This hollow spindle 6 is mounted around the central tube 13, inside which passes the formed wire 4.
  • the body of the spindle is made up of three parts: a central part 14 and two covers, upper 15 and lower 16, forming a cylindrical body.
  • the spindle 6 can rotate in rotation around the central tube 13 thanks to the two bearings 17, 18, mounted on the tube in the axial part of each of the two covers 15, 16.
  • Two circlips 19, 20 are arranged in grooves made in the central tube 13 and prevent the pin 6 from moving along the tube 13.
  • the central pulley 21 is fixed and mounted on the central tube 13.
  • the other two pulleys 22, 23 are offset from the central pulley 21 ; they are symmetrical with respect to the axis of the tube 13.
  • the pulleys 22, 23 are integral with two axes 24, 25; each of these axes 24, 25 is rotatably mounted by two bearings 26, 27, one 26 being fixed in the lower cover 16 and the other in the central part 14 of the body of the spindle 6, on both sides other of the corresponding pulley 23.
  • the three pulleys 21, 22, 23 are notched and have exactly the same configuration and in particular the same number of teeth.
  • a toothed belt 28 is stretched over the periphery of the three pulleys 21, 22, 23. It is reinforced, not extensible and can withstand temperatures of 80 ° C. Given its arrangement, inside the body of the spindle 6, the belt 28 cannot come out of the notches of the pulleys 21, 22, 23.
  • One or the other (or both) axis 24, 25 supports the base of the knitting needle 7 without valve, the base of the needle 7 being fixed in the central part 29 of the corresponding axis.
  • FIG. 3A shows more precisely the arrangement of the active members rotating the needle 7 on itself during the rotation of the spindle 6, which have just been described.
  • the three pulleys being aligned in a given direction AA ′
  • the spout 30 of the needle 7 has a radial orientation, which coincides with AA ′.
  • the lateral pulleys 22 and 23 are driven in rotation, being housed in the rotating body of the spindle 6. In doing so, they rotate around the central pulley 21. Since the central pulley 21 is fixed, the toothed belt 28 which is held in position relative to the central pulley 21 by its notches is caused to rotate around the pulley by the same angle of 90 °.
  • This angular displacement causes the rotation of the two lateral pulleys 22, 23 by the same angle, in the direction of the arrow G, opposite to that of the arrow F, and the beak 30 of the needle 7 always keeps the same direction, in the present case parallel to the axis AA ′, whatever the angle of rotation of the spindle.
  • Figures 4 show the formation of the mesh during the rotation of the needle 7.
  • the beak 30 of the needle 7 carries with it, in its rotation, the wire 1 which is presented to it through the power system.
  • the needle nozzle 30 always has the same orientation, that is to say that it is turned towards the cams 9, 10: the wire 1 comes out of the spout 30 because the profile of the cams 9, 10 displaces the wire 1 upwards relative to the spout 30.
  • wires of different structures have been produced up to spindle rotation speeds of 15,000 rpm, the latter being provided with one or two hook needles.
  • toothed pulleys 21, 22, 23 and toothed belt 23 can be replaced by a set of three identical pinions, the teeth of the central pinion meshing with the teeth of the eccentric pinion or pinions.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
EP90403434A 1989-12-04 1990-12-04 Vorrichtung zur Herstellung von Geflechtgarnen Withdrawn EP0432030A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8916580 1989-12-04
FR8916580A FR2655358B1 (fr) 1989-12-04 1989-12-04 Dispositif perfectionne de production de fils par maillage.

Publications (1)

Publication Number Publication Date
EP0432030A1 true EP0432030A1 (de) 1991-06-12

Family

ID=9388523

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90403434A Withdrawn EP0432030A1 (de) 1989-12-04 1990-12-04 Vorrichtung zur Herstellung von Geflechtgarnen

Country Status (2)

Country Link
EP (1) EP0432030A1 (de)
FR (1) FR2655358B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111118676A (zh) * 2020-01-17 2020-05-08 山东宏业纺织股份有限公司 一种细纱机的齿轮选型方法及细纱机
CN112522828A (zh) * 2020-12-29 2021-03-19 山东玉马遮阳科技股份有限公司 一种高分子单丝包覆竹节丝成型设备及成型方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0160610A1 (de) * 1984-04-24 1985-11-06 MOULINAGES Henri LACROIX Société Anonyme Vorrichtung zur Herstellung von Ziergarn

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0160610A1 (de) * 1984-04-24 1985-11-06 MOULINAGES Henri LACROIX Société Anonyme Vorrichtung zur Herstellung von Ziergarn

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111118676A (zh) * 2020-01-17 2020-05-08 山东宏业纺织股份有限公司 一种细纱机的齿轮选型方法及细纱机
CN112522828A (zh) * 2020-12-29 2021-03-19 山东玉马遮阳科技股份有限公司 一种高分子单丝包覆竹节丝成型设备及成型方法

Also Published As

Publication number Publication date
FR2655358B1 (fr) 1992-04-10
FR2655358A1 (fr) 1991-06-07

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