EP0275516A1 - Procédé de fabrication d'un canal d'amenée des fibres pour un dispositif de filature à bout libéré, et un canal d'amenée des fibres pour un tel dispositif - Google Patents

Procédé de fabrication d'un canal d'amenée des fibres pour un dispositif de filature à bout libéré, et un canal d'amenée des fibres pour un tel dispositif Download PDF

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Publication number
EP0275516A1
EP0275516A1 EP87118877A EP87118877A EP0275516A1 EP 0275516 A1 EP0275516 A1 EP 0275516A1 EP 87118877 A EP87118877 A EP 87118877A EP 87118877 A EP87118877 A EP 87118877A EP 0275516 A1 EP0275516 A1 EP 0275516A1
Authority
EP
European Patent Office
Prior art keywords
fiber
channel
metal
core
fibre
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Withdrawn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
EP87118877A
Other languages
German (de)
English (en)
Inventor
Werner Oeggerli
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
Publication of EP0275516A1 publication Critical patent/EP0275516A1/fr
Withdrawn legal-status Critical Current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
    • D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
    • D01H4/04—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques imparting twist by contact of fibres with a running surface

Definitions

  • the present invention relates to a method for producing a fiber conveyor channel made of metal with a fiber outlet mouth for an open-end spinning device and a fiber conveyor channel for such a device.
  • Fiber feed channels of the type mentioned above are already known. So there is e.g. known from EP-OS 98380 fiber conveyor channel for an open-end friction spinning device from two parts with a straight side wall, which has a flat, vertical wall surface against which the foot part of an L-shaped counter wall rests. As a result, a, albeit fine, parting line is formed in which approaches for holding very fine fibers transported through such a conveying channel are formed.
  • Fiber feed channels are used in the open-end rotor spinning process known per se. These fiber conveying channels are usually produced by injection molding, which requires reworking of the inner surface in order to obtain favorable friction properties on this surface. In addition, only the not particularly wear-resistant light metals can be manufactured using the injection molding process.
  • the method of the type mentioned at the outset is characterized in that the metal is on one of the contours of the interior the core of the fiber-conveying channel is galvanically deposited and the core and the galvanically produced fiber-conveying channel are pulled apart.
  • the method according to the invention creates the fiber feed channel without a joint, so that the fiber feed channel is seamless and consists of one piece. In this way it is avoided that any fibers accumulate in the interior of the fiber conveying channel and can therefore lead to faults if the fibers are conveyed pneumatically through the channel to the open-end spinning device in a known manner.
  • Chromium, nickel or chromium-nickel can be electrodeposited as metal for the fiber feed channel.
  • the galvanic deposition is preferably carried out in such a way that a desired wall thickness for the fiber feed channel to be produced can be achieved, which, for example, meets the requirements of sufficient strength.
  • the invention according to the present application does not relate to a galvanic method for the deposition of metals per se, but rather the production of a fiber conveyor channel of the type mentioned at the beginning by means of the galvanic deposition method known per se.
  • the core has a mirror-smooth surface on which the metal is deposited, so that the fiber feed channel with a mirror-smooth inner surface, i.e. mirror-smooth inner walls, without extensive post-processing, e.g. Polishing can be produced, which is particularly advantageous for the promotion of the fibers through such a channel.
  • a slot-shaped outlet opening for the fibers can be formed at the intended mouth of the fiber feed channel.
  • the fiber feed channel according to the invention can be produced in an economical manner and without having the disadvantages of the prior art.
  • FIG. 1 An open-end friction spinning device shown in FIG. 1, known from European patent application No. 0175862, which is shown here only in its essential parts, has a dissolving roller 1 (only partially shown) known from the rotor open-end spinning process. which is rotatably mounted in a housing 2 (also only partially shown) and can be driven in the direction of arrow A.
  • the opening roller 1 has needles 3 with which a fiber sliver (not shown) is dissolved into individual fibers 7 in a manner known per se. In this case, teeth (not shown) can also be provided instead of the needles 3.
  • a fiber conveying channel 5 is connected to this housing 2 (connection point not shown), which extends between the opening roller 1 and a friction spinning drum 6, which is perforated (not shown).
  • the free-flying fibers 7 detached from the needles 3 and indicated in the fiber conveying channel 5 become there at promoted by a pneumatic air flow according to arrow Z
  • the fibers 7 After the fibers 7 have emerged from the outlet mouth 5a of the fiber conveying channel 5, they are screwed in at a yarn formation point 8 which is located in a twist which is located between the outer surface 9 of the friction spinning drum 6 and the outer surface of a further friction spinning drum, not shown, which is parallel and with a given distance from the first spinning drum 6 is provided.
  • the twisted yarn 10 at the yarn formation point 8 is drawn off by a pair of take-off rollers 11 in the direction of arrow B.
  • FIGS. 2 and 3 show a fiber feed channel according to the invention in a production phase in which the fiber feed channel is still galvanically formed on a core 12 as a metal layer 13 with a thickness C.
  • the metal layer 13 lies around the core 12 as far as this has a conductive surface. Accordingly, it can be seen from FIGS. 2 and 3 that a part of the core 12 which is not fully shown in a region 14 which is not fully shown is free of electrodeposited metal.
  • the metal layer 13 is removed from the core 12 in the direction of arrow D.
  • the end face 15 of the galvanic layer 13 is completely removed by machining, so that an outlet mouth, analogous to the outlet mouth 5a of FIG. 1, is created.
  • the invention is to produce a fiber feed channel by galvanic means, which is why the form shown in FIGS. 2 and 3 does not mean any restriction of the invention. Rather, every conceivable shape is possible, which has a shape that allows the galvanic layer to be separated from the corresponding core.
  • Essential to the invention is the fact that a channel shaped in this way is seamless and provided with a surface fineness which essentially corresponds to the surface fineness of the core. Accordingly, all surface finenesses can be selected that allow the galvanic layer to be separated from the core.
  • FIG. 4 shows a known open-end rotor spinning machine, in which a disintegration roller 21 equipped with needles 20 is mounted in a housing 22 so that it can be driven and rotated in the direction of rotation A.1 (housing and disintegration roller not shown completely).
  • fibers 23 are detached from a sliver (not shown) and transferred to a fiber conveyor channel 24 (not shown) connected to the housing 22, by means of which these fibers 23 are conveyed into a rotor 25.
  • a yarn 26 is formed in a manner known per se, which is drawn off by a pair of draw-off rollers 27.
  • FIGS. 5 and 6 are intended to show that a channel shape can also be produced in the manner described with reference to FIGS. 3 and 4, which has a rectangular cross section at the inlet mouth 28 of the channel 24 into a round cross section of the front channel part 29 (seen in the fiber feed direction Z.1) passes.
  • FIGS. 5 and 6 accordingly show a core 30 with a galvanic layer 31 formed thereon, from which an end face 32 has to be machined away after the layer 31 has been removed from the core 30 in the direction D.1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
EP87118877A 1986-12-19 1987-12-18 Procédé de fabrication d'un canal d'amenée des fibres pour un dispositif de filature à bout libéré, et un canal d'amenée des fibres pour un tel dispositif Withdrawn EP0275516A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH509986 1986-12-19
CH5099/86 1986-12-19

Publications (1)

Publication Number Publication Date
EP0275516A1 true EP0275516A1 (fr) 1988-07-27

Family

ID=4287919

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87118877A Withdrawn EP0275516A1 (fr) 1986-12-19 1987-12-18 Procédé de fabrication d'un canal d'amenée des fibres pour un dispositif de filature à bout libéré, et un canal d'amenée des fibres pour un tel dispositif

Country Status (2)

Country Link
EP (1) EP0275516A1 (fr)
JP (1) JPS63165530A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010045648A1 (de) * 2010-09-17 2012-03-22 Hauni Maschinenbau Ag Vorrichtung zum Transport eines Filtertows von einer Filtertowquelle zu einer Filterherstellungsmaschine
WO2018031342A1 (fr) 2016-08-02 2018-02-15 Paul Lewis Stockage de données indépendant de la juridiction dans un environnement en nuage multi-fournisseurs

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB309539A (fr) * 1928-04-12 1929-10-31 Electrical Research Products Inc.
GB860062A (en) * 1959-09-29 1961-02-01 Standard Telephones Cables Ltd Tubular metal article with highly finished interior surface
DE2132664A1 (de) * 1971-07-01 1973-01-18 Licentia Gmbh Verfahren zur galvanischen herstellung von koerpern und galvanisch hergestellter koerper
DE2800795A1 (de) * 1978-01-09 1979-07-19 Schlafhorst & Co W Faserspeisekanal fuer eine rotorspinnmaschine
DE2947247A1 (de) * 1979-11-23 1981-05-27 Kabel- und Metallwerke Gutehoffnungshütte AG, 3000 Hannover Verfahren zur herstellung von hohlleiterbauelementen
EP0098380A2 (fr) * 1981-02-21 1984-01-18 Hollingsworth (U.K.) Limited Dispositif de filage par friction
GB2167455A (en) * 1984-11-20 1986-05-29 Vyzk Ustav Bavlnarsky Frictional open-end spinning apparatus
EP0183934A1 (fr) * 1984-11-13 1986-06-11 Maschinenfabrik Rieter Ag Canal d'amenée des fibres pour les dispositifs de filature par friction

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB309539A (fr) * 1928-04-12 1929-10-31 Electrical Research Products Inc.
GB860062A (en) * 1959-09-29 1961-02-01 Standard Telephones Cables Ltd Tubular metal article with highly finished interior surface
DE2132664A1 (de) * 1971-07-01 1973-01-18 Licentia Gmbh Verfahren zur galvanischen herstellung von koerpern und galvanisch hergestellter koerper
DE2800795A1 (de) * 1978-01-09 1979-07-19 Schlafhorst & Co W Faserspeisekanal fuer eine rotorspinnmaschine
DE2947247A1 (de) * 1979-11-23 1981-05-27 Kabel- und Metallwerke Gutehoffnungshütte AG, 3000 Hannover Verfahren zur herstellung von hohlleiterbauelementen
EP0098380A2 (fr) * 1981-02-21 1984-01-18 Hollingsworth (U.K.) Limited Dispositif de filage par friction
EP0183934A1 (fr) * 1984-11-13 1986-06-11 Maschinenfabrik Rieter Ag Canal d'amenée des fibres pour les dispositifs de filature par friction
GB2167455A (en) * 1984-11-20 1986-05-29 Vyzk Ustav Bavlnarsky Frictional open-end spinning apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010045648A1 (de) * 2010-09-17 2012-03-22 Hauni Maschinenbau Ag Vorrichtung zum Transport eines Filtertows von einer Filtertowquelle zu einer Filterherstellungsmaschine
WO2018031342A1 (fr) 2016-08-02 2018-02-15 Paul Lewis Stockage de données indépendant de la juridiction dans un environnement en nuage multi-fournisseurs

Also Published As

Publication number Publication date
JPS63165530A (ja) 1988-07-08

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Inventor name: OEGGERLI, WERNER