EP0277871B1 - Streckvorrichtung für textile Faserbänder - Google Patents

Streckvorrichtung für textile Faserbänder Download PDF

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Publication number
EP0277871B1
EP0277871B1 EP19880400164 EP88400164A EP0277871B1 EP 0277871 B1 EP0277871 B1 EP 0277871B1 EP 19880400164 EP19880400164 EP 19880400164 EP 88400164 A EP88400164 A EP 88400164A EP 0277871 B1 EP0277871 B1 EP 0277871B1
Authority
EP
European Patent Office
Prior art keywords
needles
needle
implanted
straight
slanting
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
EP19880400164
Other languages
English (en)
French (fr)
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EP0277871A1 (de
Inventor
Henri Genevray
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.)
N Schlumberger SAS
Original Assignee
N Schlumberger SAS
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 N Schlumberger SAS filed Critical N Schlumberger SAS
Publication of EP0277871A1 publication Critical patent/EP0277871A1/de
Application granted granted Critical
Publication of EP0277871B1 publication Critical patent/EP0277871B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/02—Gill boxes or other drafting machines employing fallers or like pinned bars
    • D01H5/12—Details
    • D01H5/14—Pinned bars

Definitions

  • the present invention relates to the drawing of textile fiber ribbons.
  • Document DE-C-156.223 discloses a mixed stretch control system which comprises needles directed towards the rear and mounted on two sleeves. This system has the drawbacks mentioned above of the sleeve systems.
  • Document EP-A-0.029.113 also discloses a stretch control system of the bar type carrying needles.
  • the needles are straight and located substantially in the plane passing through the ends of the bar, which is inconvenient when the needles are released from the web.
  • Document DE-A-2,649,486 discloses a mixed control system which overcomes the aforementioned drawbacks. To this end, it consists in grouping the advantages of needle systems and sleeve systems into a simple drawing device which allows good fiber control, which is of attractive cost price, easy to maintain, and which allows the widest range of materials to be worked at high speed.
  • This device comprises a control system having two endless movable elements between which the textile material passes, and is characterized in that the two endless elements each consist of a succession of transverse bars articulated on chains, forming an apron and carrying needles for penetration into the material and having an active contact surface with the material.
  • the control is done by needles, and by contact as on sleeve systems.
  • the two endless elements have the same structure, the organs of penetration into the ribbon being offset from one element to another in the zone of cooperation of said elements with the ribbon.
  • the object of the invention is to improve this mixed control system which has just been described.
  • the invention provides an arrangement of bars favorable to the release of the needles from the web.
  • the subject of the invention is a control system having two endless mobile elements between which the textile material passes, and the two endless elements of which each consist of a succession of transverse bars articulated on chains, forming an apron. and carrying needles for penetration into the material and having an active contact surface with the material, characterized in that the needles are implanted on the barrel body cantilevered forward with respect to the joints on its drive means and in that the needles are inclined rearwardly with respect to the direction of advance of the fiber ribbon during drawing.
  • the needles leave the material in a much more advantageous manner, which avoids windings.
  • the inclination of the hands can be between 1 ° and 45 °.
  • the first implementation variant of the invention (Fig. 1) consists in the use of needles 13 straight in the directions of advancement of the bars and of the material (arrow 16) and implanted obliquely towards the rear in tray 12 of the bar.
  • the second variant (Fig. 2) consists in the use of needles 13 bent at the projection to give them the inclination towards the rear.
  • the third variant (Fig. 3) consists in bending the needles 13 at an intermediate point between the projection and the point.
  • the fourth variant (Fig. 4) consists in using needles 13 bent backwards in the shape of a curve (for example: arc of a circle) from the projection.
  • a fifth and a sixth variant consist in using needles 13 having a certain sawtooth profiling.
  • FIG. 7 to 9 Other variants consist in mounting the straight needles perpendicular to the upper surface inclined towards the rear of the bar.
  • the surface on which the needles are implanted may have any sections (for example: flat, curved, inclined, curvilinear) to facilitate the control of the fibers by the active surface of the bars.
  • This surface may be metallic or be coated or lined with a material facilitating the control of the fibers.
  • backward-angled needles in the control system is that the fibers are very stable in the vertical direction. Indeed, due to the backward inclination of the needles, once the needles have penetrated into the material, they constitute oblique bars which block, still in the vertical direction, the fibers which, as a result, are less free vertically. This gives the outgoing product better regularity, which is essential at this stage of manufacturing.
  • Another advantage of the needles inclined towards the rear consists in blurring the place of implantation of the needles in the sheet of fibers, which improves the regularity of the section of the outgoing ribbon.
  • this type of bar with needles inclined or profiled towards the rear can be applied to any other stretching device which uses a needle field as a control system; for example bars powered by screws or chains.
  • FIGs. 1 to 9 show, in section, the section 11 of the working part of the bar, that is to say the plate 12 which is cantilevered forward and which includes the needles 13 Part 14 is the end of the bar which is fixed on the chain or the like.
  • Two bores 15 receive the axes of the chain in order to fix, drive and drive the bar. In other words, the two bores 15 serve to make the bar of the chain integral, and this at each end of the bar.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Treatment Of Fiber Materials (AREA)

Claims (10)

1. Streckvorrichtung für Textilfaserbänder mit einem Steuersystem, welches zwei bewegliche, endlose Elemente aufweist, zwischen denen das Textilmaterial sich hindurchbewegt, wobei die beiden endlosen Elemente jeweils aus einer Folge von auf Ketten gelenkig gelagerten Querstegen (Hechelstäben) gebildet sind, welche jeweils eine Platte bilden und Nadeln (13) zum Eindringen in das Materal tragen und die eine aktive Oberfläche zum Kontakt mit dem Material aufweisen, dadurch gekennzeichnet, daß die Nadeln (13) in dem Stegkörper bezüglich der Gelenke (15) auf ihren Antriebsmitteln nach vorne versetzt verankert sind und daß die Nadeln (13) bezüglich der Bewegungsrichtung (16) des Faserbandes beim Streckungsvorgang nach hinten geneigt sind.
2. Vorrichtung nach Anspruch 1, gekennzeichnet durch eine gerade verlaufende Nadel (13), welche schräg in dem Stegkörper (12) verankert ist.
3. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Nadel an ihrer Austrittsstelle gebogen ist.
4. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Nadel (13) an einem Punkt zwischen der Austrittsstelle und der Spitze gebogen ist.
5. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Nadel (13) von der Austrittsstelle nach hinten gekrümmt ist.
6. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Nadel (13) sägezahnförmig ist, wobei der Rücken abgeschrägt und dann zugespitzt ist.
7. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Nadel sägezahnförmig ist, wobei der Rücken abgerundet ist.
8. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die gesamte oberseitige Oberfläche des Steges (12) nach hinten geneigt ist und daß die dort verankerten Nadeln gerade Nadeln sind.
9. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß sie einen flachen Steg (12) aufweist, der nach hinten geneigt befestigt ist, wobei die verankerten Nadeln (13) gerade sind und die Neigung durch die Befestigung des Steges (12) vorgegeben ist.
10. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Oberfläche, welche die Nadeln (13) trägt, geneigt ist, wobei die dort verankerten Nadeln gerade sind und die Neigung durch die sie tragende Oberfläche vorgegeben ist.
EP19880400164 1987-01-30 1988-01-26 Streckvorrichtung für textile Faserbänder Expired - Lifetime EP0277871B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8701127 1987-01-30
FR8701127A FR2610334B1 (fr) 1987-01-30 1987-01-30 Dispositif d'etirage pour rubans de fibres textiles

Publications (2)

Publication Number Publication Date
EP0277871A1 EP0277871A1 (de) 1988-08-10
EP0277871B1 true EP0277871B1 (de) 1991-03-27

Family

ID=9347432

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19880400164 Expired - Lifetime EP0277871B1 (de) 1987-01-30 1988-01-26 Streckvorrichtung für textile Faserbänder

Country Status (4)

Country Link
EP (1) EP0277871B1 (de)
DE (1) DE3862120D1 (de)
ES (1) ES2021841B3 (de)
FR (1) FR2610334B1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2663047B1 (fr) * 1990-06-06 1992-12-31 Schlumberger Cie Dispositif d'etirage pour rubans de fibres textiles.

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE156223C (de) *
CH606528A5 (de) * 1975-10-28 1978-11-15 Schlumberger Cie N
DE2944680A1 (de) * 1979-11-06 1981-05-07 Staedtler & Uhl, 8540 Schwabach Streckenstab fuer textilvorbereitungsmaschinen

Also Published As

Publication number Publication date
DE3862120D1 (de) 1991-05-02
ES2021841B3 (es) 1991-11-16
FR2610334A1 (fr) 1988-08-05
FR2610334B1 (fr) 1989-10-13
EP0277871A1 (de) 1988-08-10

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