EP0183934B1 - Faserförderkanal für Friktionsspinnvorrichtungen - Google Patents

Faserförderkanal für Friktionsspinnvorrichtungen Download PDF

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Publication number
EP0183934B1
EP0183934B1 EP85112221A EP85112221A EP0183934B1 EP 0183934 B1 EP0183934 B1 EP 0183934B1 EP 85112221 A EP85112221 A EP 85112221A EP 85112221 A EP85112221 A EP 85112221A EP 0183934 B1 EP0183934 B1 EP 0183934B1
Authority
EP
European Patent Office
Prior art keywords
gap
fibre
transport passage
fibre transport
joint grooves
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
EP85112221A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0183934A1 (de
Inventor
Arthur Würmli
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 EP0183934A1 publication Critical patent/EP0183934A1/de
Application granted granted Critical
Publication of EP0183934B1 publication Critical patent/EP0183934B1/de
Expired 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
    • D01H4/38—Channels for feeding fibres to the yarn forming region

Definitions

  • the invention relates to a fiber conveying channel for friction spinning devices for the pneumatic conveying of textile fibers between a fiber dissolving unit and a spinning unit, the fiber conveying channel being composed of at least two joined longitudinal parts, and fine separating joints being present between the joined longitudinal parts.
  • a fiber feed channel of this type is already known from FR-A-23 45 541 and from EP-A-98 380.
  • the fiber conveying channel consists of two C-shaped parts which are assembled facing each other on a plane of symmetry of the fiber conveying channel, the above-mentioned joints being created.
  • this is composed of a straight side wall and an L-shaped side wall adjoining it.
  • the straight side wall has a flat surface against which the foot part of the L-shaped counter wall rests and thereby forms a, albeit fine, parting line.
  • the object of the present invention is therefore to create a fiber feed channel of the type mentioned at the beginning, in which the said approaches, to which fibers are caught, are not present.
  • this object is achieved in that the fine parting lines are provided at the bottom of elongated gaps which extend in the longitudinal direction of the fiber conveying channel and are open towards the conveying cross section of the interior of the fiber conveying channel; and that the gaps extend over the entire length of the fiber feed channel to the fiber feed channel outlet and connect the parting lines to the feed cross section.
  • FIGS. 1 and 2 show a friction spinning device 1 comprising a from the open-end Rotor spinning known fiber resolution unit 2, an attached fiber feed channel 3 and partially a first friction spinning drum 4.
  • the second friction spinning drum cooperating with the first friction spinning drum 4 is not shown for the sake of simplicity.
  • the fibers delivered by the fiber conveying channel are twisted together to form a yarn which is drawn off and wound up by means not shown here.
  • the two friction spinning drums form, for example, a spinning unit.
  • the fiber dissolving unit 2 comprises a housing 5, an opening roller 6 rotatably and driveably mounted therein, a feed roller 8 feeding a fiber sliver 7 and a so-called trough plate 9 receiving the fiber sliver 7.
  • the fiber f örderkanal comprises a first half 10, a second half 11, and a connecting flange 12.
  • the two halves are longitudinal halves of the fiber conveying channel ie 3 is divided in its longitudinal direction in the two said halves 10 and 11 and respectively by means of connecting flanges. 13 14 held together, e.g. B. by means of screws or by means of a solder connection.
  • the connecting flange 12 serves to fasten the fiber conveying channel 3 to the housing 5 of the fiber dissolving unit 2.
  • the two halves 10 and 11 of the fiber feed channel 3 are held together by means of screws or other releasable connections, it is advantageous to also divide the connecting flange 12 into two halves, which are each allocated to the channel halves.
  • the overlapping partitions (not marked). the connecting flanges 13 and 14 must be created so that the separating joints 17 and 17 created by the stacking of the connecting flanges. 18 (indicated in FIG. 1) have practically no places in which fibers could become jammed.
  • FIG. 3 and 4 show a fiber feed channel 3.1 as a variant of the fiber feed channel 3.
  • Figures 5 resp. 6 show an enlarged, in Fig. 4 with A respectively. B marked section.
  • the difference to the fiber feed channel 3 lies in the fact that in the connecting flanges 13.1 and 14.1 (FIGS. 5 and 6, respectively) there is a recess (not marked), which has a gap 15 and. 16 form each with the gap depth L and the gap width B.
  • this gap 15 respectively. 16 is that with an advantageous ratio between the gap depth L and the gap width B, with a minimum gap width of 0.1 mm and a maximum gap width of 0.5 mm, the fibers conveyed in the conveying cross section of the fiber conveying channel run less danger in contact with the joints 17 resp. 18 come, so there is a smaller risk that these fibers get caught in the joints.
  • the minimum ratio of gap depth L to gap width B is 5: 1 and for practical reasons the maximum ratio L: B is 10: 1.
  • the gap 15, respectively. 16, with the exception of the connecting flange 12, is pulled along the entire length of the conveying channel and can have an extension toward the channel outlet.
  • FIGS. 7 and 8 show a variant compared to the embodiment shown with FIGS. 4, 5 and 6 by the parting line 17 and. 18 is not in the middle of the gap bottom, but in the very corner of this gap bottom.
  • This variant arises from the fact that the depression resulting from the gap is only provided in one of the two flanges, e.g. B. in the flanges 13.1. Since it is otherwise the same elements as those of FIGS. 5 and 6, the elements of FIGS. 7 and 8 are labeled with the same reference numerals for the sake of simplicity.
  • FIGS. 9 and 10 show a boot-shaped gap 15.1 and. 16.1, the foot part 19 or 20 of the gap 15.1 resp. 16.1 upwards, looking towards FIGS. 10 and 10, is directed. According to the invention, however, it is not essential whether this foot part 19 or. 20 is directed upwards or downwards or at an angle which, as shown in FIGS. 9 and 10, does not correspond to a right angle.
  • the essential thing is only that the parting lines 17, respectively. 18 not in the area of the shaft part 21 or 22 are located, but to a certain extent hidden at the end of the foot part 19 or 20th
  • the variant shown in FIGS. 11 and 12 corresponds to the variant shown in FIGS. 7 and 8, only with the difference that the fiber conveyor channel halves are not parts that are made by the injection molding process, but rather parts that are made of Sheet metal can be produced.
  • FIGS. 7 to 12 respectively. 5 and 6 with A and B marked circle sections in FIGS. 7 to 12 with A.1 to A.3 and B.1 to B.3.
  • FIGS. 13 and 14 also show a fiber conveying channel 3.2 which can be produced from sheet metal parts and which consists of the first half 10.3 and the second half 11.3 and the connecting flange 12.
  • the difference essential to the invention between the previous variants and the variant of these figures is that the gap 15.2, respectively. 16.2 not perpendicular to the side walls which also determine the conveying cross section, as is shown with FIGS. 4 to 12, but is directed parallel to these (see also FIGS. 15 and 16, which is an enlarged one, in FIG. 14 with C and Show D marked section).
  • Such a gap arises from the fact that the connecting flanges 36, respectively. 37 are provided directed in the conveying cross section, the connecting flange 37 of the first half 10.3 also being bent in a direction parallel to the wall in such a way that the connecting flange 36 of the second half 11.3 is exceeded by the gap depth L.
  • This protrusion of the flange 36 creates the gap 15.2, respectively. 16.2 with the width B.
  • This width B is, as already mentioned, on the one hand by the flange 37 and on the other hand by the side wall part 38 or. 39 formed the second half 11.3.
  • FIGS. 17 and 18 show a variant of the fiber feed channel shown with FIG. 14 in that the connecting flanges 36 and 37 are not arranged in the region of the center of the fiber feed channel, but are shifted against a longitudinal wall 23 of the fiber feed channel.
  • This arrangement creates a gap, the location of which has the advantage of being even further away from the fiber stream than the gap 15.2 and 15.2 shown in FIGS. 16.2.
  • the side wall 38 respectively. 39 of Fig. 15 respectively. 16 corresponds functionally to the side wall 38.1, respectively. 39.1 of Fig. 17 respectively. 18th
  • FIGS. 17 and 18 are marked with C.1 and D.1, since it is a variant of FIG. 14.
  • the difference essential to the invention is that the gap is arranged at the very edge of the air flow that conveys the fibers, in that the gap is formed on the one hand by the longitudinal wall 24 forming half 11.4 and on the other hand by feet 27 and 25 provided on the side walls 25 and 26 of the first half 10.4. 28 (FIGS. 21 and 22) is delimited in its width B.
  • the longitudinal wall 24 has bends 29 and 30 on the long sides, on which the feet 27 and 28 of the side walls 25 and 26 are supported.
  • the feet 27 and 28 can be connected to the bends 29 and 30 of the longitudinal wall 24 by any connection method, for example by soldering.
  • FIG. 23 shows a variant of FIG. 20, in that the fiber conveying channel 3.4 is composed of the said longitudinal wall 24 and a mirror-image second longitudinal wall 31 and two side walls 32 and 33.
  • the longitudinal wall 31 has feet 34 and 35 of the same dimension as a mirror image of the feet 29 and 30 of the longitudinal wall 24.
  • the side walls 32 and 33 have a thickness D, which the depth L of the gap 15.3 and. 16.3 plus the width d of the turns 29 resp. 30 corresponds.
  • the columns 15.3 and 16.3 are substantially perpendicular to the corresponding side walls 25 and. 26 or 32 resp. 33 arranged.
  • the longitudinal walls 24 and 31 are joined together with the side walls 32 and 33 in such a way that the feet 29 and 30, respectively.
  • 34 and 35 lie on the end faces (not marked) of the side walls 32 and 33 and the side walls 32 and 33 protrude inwards of the conveying channel, so the gap 15.3 or. 16.3 formed on both end faces of the side walls 32 and 33.
  • the longitudinal walls 24 and 31 can be connected to the side walls 32 and 33 by any connection means, for example by soldering.
  • FIGS. 4 to 8, 11 and 12 and 20 to 23, viewed in the direction of the gap, are provided essentially in a straight line, while those in FIGS. 9 and 10 are viewed in the same direction , are angled like boots.
  • the column of FIGS. 14 to 18 are straight in the aforementioned sense, due to their parallel position to the side walls 21 and 22, respectively. 21.1 and 22.1, seen in the direction of view towards the side walls mentioned, but also angled like a boot.
  • cross section of the conveyor should be understood to mean the interior of the fiber conveyor channel, but without the respective column.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
EP85112221A 1984-11-13 1985-09-26 Faserförderkanal für Friktionsspinnvorrichtungen Expired EP0183934B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH5418/84 1984-11-13
CH541884 1984-11-13

Publications (2)

Publication Number Publication Date
EP0183934A1 EP0183934A1 (de) 1986-06-11
EP0183934B1 true EP0183934B1 (de) 1989-05-17

Family

ID=4293249

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85112221A Expired EP0183934B1 (de) 1984-11-13 1985-09-26 Faserförderkanal für Friktionsspinnvorrichtungen

Country Status (5)

Country Link
US (1) US4649699A (enrdf_load_stackoverflow)
EP (1) EP0183934B1 (enrdf_load_stackoverflow)
JP (1) JPS61119726A (enrdf_load_stackoverflow)
DE (1) DE3570251D1 (enrdf_load_stackoverflow)
IN (1) IN166212B (enrdf_load_stackoverflow)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3629498A1 (de) * 1986-08-29 1988-03-10 Brockmanns Karl Josef Dr Ing Friktionsspinnvorrichtung
JPS63165530A (ja) * 1986-12-19 1988-07-08 マシーネンフアブリーク・リーテル・アクチエンゲゼルシヤフト 開放型紡糸装置の繊維運搬通路の製造法および繊維運搬通路
DE19632888A1 (de) * 1996-08-16 1998-02-19 Rieter Ingolstadt Spinnerei Offenend-Spinnvorrichtung und Verfahren zur Herstellung eines Transportkanals

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH464026A (de) * 1968-05-24 1968-10-15 W Krause Hans Verfahren zum Parallelisieren von Stapelfasern in einem Speisekanal zu einer Spinnkammer einer Offenend-Spinnvorrichtung und Vorrichtung zur Durchführung des Verfahrens
US3839855A (en) * 1973-06-07 1974-10-08 Rieter Ag Maschf Housing for an opening roll of an open end spinning device
DE2613263B2 (de) * 1976-03-27 1978-07-27 Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid Verfahren zum Spinnen von Fasern und Vorrichtung zur Ausführung des Verfahrens
US4321789A (en) * 1976-03-27 1982-03-30 Barmag Barmer Maschinenfabrik Ag Process for spinning of core/mantle yarns and yarn products
ATA169077A (de) * 1976-03-27 1990-09-15 Schlafhorst & Co W Verfahren zum spinnen von fasern zu einem faserverbund
FR2345541A1 (fr) * 1976-03-27 1977-10-21 Barmag Barmer Maschf Procede pour la filature de fibres en un faisceau de fibres
ATE28338T1 (de) * 1981-02-21 1987-08-15 Hollingsworth Uk Ltd Friktionsspinnvorrichtung.
DE3320768A1 (de) * 1983-06-09 1984-12-13 Fritz 7347 Bad Überkingen Stahlecker Vorrichtung zum oe-friktionsspinnen
DE3324001A1 (de) * 1983-07-02 1985-01-03 Fritz 7347 Bad Überkingen Stahlecker Vorrichtung zum oe-friktionsspinnen
DE3335065A1 (de) * 1983-09-28 1985-04-04 Stahlecker, Fritz, 7347 Bad Überkingen Vorrichtung zum oe-friktionsspinnen
DE3336547A1 (de) * 1983-10-07 1985-04-18 Fritz 7347 Bad Überkingen Stahlecker Vorrichtung zum oe-friktionsspinnen

Also Published As

Publication number Publication date
JPS6330410B2 (enrdf_load_stackoverflow) 1988-06-17
JPS61119726A (ja) 1986-06-06
IN166212B (enrdf_load_stackoverflow) 1990-03-31
DE3570251D1 (en) 1989-06-22
US4649699A (en) 1987-03-17
EP0183934A1 (de) 1986-06-11

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