EP2881500B1 - Manchon de tamis pour guides condenseurs - Google Patents

Manchon de tamis pour guides condenseurs Download PDF

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Publication number
EP2881500B1
EP2881500B1 EP14195936.1A EP14195936A EP2881500B1 EP 2881500 B1 EP2881500 B1 EP 2881500B1 EP 14195936 A EP14195936 A EP 14195936A EP 2881500 B1 EP2881500 B1 EP 2881500B1
Authority
EP
European Patent Office
Prior art keywords
filaments
lattice apron
wire mesh
fiber bundle
transport region
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.)
Active
Application number
EP14195936.1A
Other languages
German (de)
English (en)
Other versions
EP2881500A1 (fr
Inventor
Peter Blankenhorn
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
Priority claimed from DE102013113510.2A external-priority patent/DE102013113510A1/de
Priority claimed from DE102014106745.2A external-priority patent/DE102014106745A1/de
Application filed by Maschinenfabrik Rieter AG filed Critical Maschinenfabrik Rieter AG
Publication of EP2881500A1 publication Critical patent/EP2881500A1/fr
Application granted granted Critical
Publication of EP2881500B1 publication Critical patent/EP2881500B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D1/00—Woven fabrics designed to make specified articles
    • D03D1/0094—Belts
    • 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
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/26—Drafting machines or arrangements without fallers or like pinned bars in which fibres are controlled by one or more endless aprons
    • 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
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/70—Constructional features of drafting elements
    • D01H5/72—Fibre-condensing guides
    • 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
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/70—Constructional features of drafting elements
    • D01H5/86—Aprons; Apron supports; Apron tensioning arrangements
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D13/00—Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/30—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the fibres or filaments
    • D03D15/37—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the fibres or filaments with specific cross-section or surface shape
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/40—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the yarns or threads
    • D03D15/44—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the yarns or threads with specific cross-section or surface shape
    • D03D15/46—Flat yarns, e.g. tapes or films
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2505/00—Industrial

Definitions

  • a wire mesh for a compacting device of a spinning machine has a fabric of filaments and is perforated at least in a fiber transport region of the wire mesh with a defined free area of at least 10% to allow a suction air stream to act on a fiber bundle moved thereon.
  • the Siebriemchen is an elementary component of a compacting device in compact or compaction spinning machines. After passing through a conventional drafting system with a pair of output rollers, a stretched fiber bundle is taken from the wire mesh after leaving the pair of output rollers and transported by means of the driven Siebriemchens via a stationary suction slot. Vacuum acts on the fiber bundle through the suction slot and compacts it into a compact body. Projecting fibers are applied to the fiber bundle. Since the suction slot is usually inclined to the direction of movement of the wire mesh, a lateral relative movement of the fiber bundle is forced over the surface of the wire mesh. The fiber bundle curls up during this movement - it creates a false twist. In addition to the purely pneumatic compression thus an additional, mechanical compression is achieved.
  • the sieve strap prevents suction of fibers during compaction and guides the fibers over the suction slot.
  • the Siebriemchens drive, for example, by a top roller with rubber cover, which presses the Siebriemchen against the surface of the compression device or against a suction tube and thus converts the rotational movement of the pressure roller in a revolution of the Siebriemchens.
  • a top roller with rubber cover which presses the Siebriemchen against the surface of the compression device or against a suction tube and thus converts the rotational movement of the pressure roller in a revolution of the Siebriemchens.
  • the fabric of the wire mesh made of filaments has a certain resistance to displacement, which is determined by the bending and tensile strength of the filament and the weave of the fabric. If the resistance to displacement of the wire mesh is insufficient, the fabric may shift due to the friction between the wire mesh and the compacting device which fluctuates across the width of the wire mesh, resulting in a lateral drainage of the wire mesh or even wrinkling.
  • Object of the present invention is therefore to be able to achieve the best possible yarn quality with a wear-resistant Siebriemchen as possible.
  • An inventive wire mesh is provided for a compacting device of a spinning machine, in particular a compacting or compact spinning machine.
  • the sieve strap has a fabric of filaments.
  • the wire mesh is designed such that in a fiber transport region of the wire mesh a fiber bundle can be picked up by the wire mesh and transported together with the wire mesh to a delivery point of the fiber bundle. , is.
  • the fiber transport region is seen transversely to the transport direction of the Siebriemchens the area in which a fiber bundle, which is received by the pair of output roller of the upstream drafting on the Siebriemchen and discharged again at the discharge point, or in other words, the area the fiber bundle travels on the sieve strap by its relative movement transversely to the longitudinal direction of the wire mesh.
  • the fiber transport region is thus not defined solely by the transport movement of the fiber bundle, but because the fiber bundle usually also performs a relative movement transversely to the direction of movement of the sieve wire, the fiber transport region is also laterally fixed.
  • the lateral boundary of the fiber transport region usually results from a suction slot, which is arranged in a suction tube below the wire mesh.
  • the sieve strap is perforated with a defined free space of at least 10%. This means that at least 10% of the Siebriemchens in the fiber transport area are permeable to air for acting below the Siebriemchens Saug Kunststoffstrom.
  • the remaining surface of the wire mesh is covered by the filaments of the fabric and serves not to suction the fiber bundle moved on the wire mesh, but to retain the fibers of the fiber bundle, so that they are not sucked into the suction.
  • the suction slot can be arranged either parallel to the direction of movement of the wire mesh or inclined thereto in the suction pipe.
  • the suction pipe also serves to guide the wire mesh as well as a mating surface for a driven roller which moves the wire mesh.
  • the Siebriemchen is usually endless. That is, the sieve strap formed a ring which is placed around the guide or the suction tube and constantly transported the incoming fiber bundle.
  • the surface of the filaments contacting the fiber bundle is flattened, at least in the fiber transport region, in comparison with a round surface of the filaments.
  • the flattened surface of the filaments is provided only on the upper side of the wire mesh.
  • the yarn formation is advantageously influenced in particular.
  • the filaments it is also possible for the filaments to have flattened surfaces both on the upper side and on the underside of the wire mesh. With this configuration of the filaments, a particularly advantageous influence on the wear of the wire mesh is to be taken.
  • the flattened surface be provided in the transport area of the wire mesh
  • the wire mesh itself if the flattened surface of the filaments is provided both in the fiber transport area and in the edge areas of the wire mesh are.
  • the flattening on the top and on the bottom can be provided differently or completely omitted in some areas.
  • the complete Siebriemchen be provided only on the top or at the top and bottom with flattened filaments.
  • the surface of the filaments is calendered at least in the fiber transport region, this causes, for example, by means of a heat action, that the cross sections of the filaments are changed and thus have a flattened surface.
  • the filaments used in the fabric are profiled.
  • filaments are used which have a non-round profile already during their production or a corresponding post-processing prior to the production of the fabric.
  • the profile is such that it has at least one flattened surface in the cross section of the filament.
  • the profiled filaments preferably have a flattened, in particular oval or elliptical or substantially rectangular cross section.
  • a flattened cross-section can be produced which, when used appropriately in the fabric of the wire mesh, leads to a flattened surface of the fabric and thus of the wire mesh.
  • the filaments have a diameter between 30 .mu.m and 400 .mu.m. This allows fine and coarse fiber bundles are processed. In a particularly preferred embodiment, the filaments have a diameter of between 80 ⁇ m and 300 ⁇ m. These cross-sectional diameters provide the best compromise between good yarn production and a wear-resistant wire bond.
  • the evacuated flank area in the fiber transport area is between 10% and 45% of the wire mesh in its fiber transport area.
  • a sufficiently strong suction force is generated on the fiber bundle, which it pressed against the wire mesh and on the other hand, but also still allows the relative movement of the fiber bundle.
  • the filaments are fused together at least in the fiber transport region in the crossing points of the fabric and / or pressed or connected to each other by means of a positive connection.
  • the wire mesh is provided with a coating, in particular with a polymer, at least at the intersection points of the filaments, a rounding of the filaments and of the mesh openings or free surfaces of the fabric takes place in a particularly advantageous manner.
  • a coating in particular with a polymer
  • the coating flows at the crossing points between the filaments and forms a skin-like layer. At the same time it can be effected that the filaments stick together by the coating and thus an additional strength of the fabric is achieved.
  • the coating can be applied before and / or after the flattening of the filaments.
  • the filaments are fused or glued together at the edge regions of the wire mesh in order to avoid fraying of the wire mesh.
  • the durability of the Siebriemchens is thereby improved.
  • the border area is the area which is outside the area under which the suction slot exerts its suction force on the fiber bundle.
  • the fusing or gluing can also take place in such a way that no or barely a suction force can be applied through the wire mesh more.
  • the sieve strap can be completely or almost dense in these areas.
  • FIG. 1 shows a section of a suction slot 2 with the overlying conventional fine Siebriemchen 1 and a fiber bundle arranged thereon 3. Due to the inclination of the suction slot 2 with respect to the direction of movement B of the wire mesh 1, a mechanical compression of the fiber bundle 3 is achieved.
  • the fiber bundle 3 is located on one side or at an edge of the suction slot 2. Since the fiber bundle 3 by the suction air flow S is pressed onto the surface of the wire mesh 1 and the fiber bundle 3 is bulky and elastic, it partially immersed in the conditional by the binding of the tissue depressions.
  • FIG. 2 Clearly different is the situation with a Siebriemchen 1 with a coarse, for example, 150 micron thick filament.
  • the situation is in FIG. 2 shown.
  • the fiber bundle 3 dives deep into the tissue-induced depressions of the tissue. To move the fiber bundle 3 laterally, an increased resistance is overcome.
  • the fabric structure is also important when the fiber bundle 3 strikes the wire mesh 1.
  • a broad fiber stream coming from the pair of drawing rollers, not shown, of the drafting system must be combined over the elevations of the fabric to form a compact fiber bundle 3.
  • the elevations of the tissue also have a disadvantageous effect here.
  • FIG. 3 a section of a Siebriemchens invention 1 is shown.
  • the individual filaments of the wire mesh are flattened on their surface or on the top and bottom of the wire mesh 1 in the region of their bond.
  • Some of the flats 6 are in the FIG. 3 drawn in and marked.
  • the resistance of the fiber bundle 3 with a relative movement R is significantly lower in this embodiment than in the embodiments according to FIG FIG. 1 or in particular the FIG. 2 ,
  • the invention now reduces the bond-related elevations of a conventional one Tissue even when using a coarse filament to a minimum.
  • the open spaces 5 can remain essentially the same.
  • a flattening of the top of Siebriemchens 1 is sufficient to achieve an advantage over conventional Siebriemchen.
  • the partial flattening of the yarn transport area is another production possibility - while the fabric is adjacent to the yarn transport area without flattening 6.
  • the wire mesh 1 is flattened on both the top and the bottom and across the entire width. It is also possible to flatten the wire mesh 1 only partially in the yarn transport area - either only on the top or on the top and bottom.
  • FIG. 4 shows a portion of a suction tube 4, around which the Siebriemchen 1 is guided.
  • the wire mesh 1 is driven in the direction of movement B by means of a pinch roller, not shown. It slides with its underside over the surface of the fixed suction pipe 4.
  • the fiber bundle 3 passes to a not shown pair of output rollers of a drafting on the in the FIG. 4 shown right end of the suction slot 2 and is transported together with the wire mesh 1 in the direction of movement B.
  • the suction slot 2 is vacuumed with negative pressure.
  • This suction air stream S flows through the open spaces 5 of the wire mesh 1 and holds the fiber bundle 3 on the wire mesh 1 firmly.
  • the fiber bundle 3 undergoes a relative movement in the direction of the arrow R perpendicular to the direction of movement B of the wire mesh 1. As a result, the fiber bundle 3 rolls or slides transversely to the direction of movement B of the wire mesh 1.
  • the fiber transport region F is located substantially in the region of the wire mesh 1, which is arranged above the suction slot 2, or in the region where the fiber bundle 3 impinges on the wire mesh 1 to the point where the fiber bundle 3 leaves the wire mesh again.
  • the lateral areas outside the fiber transport area 11 can also, as in FIG. 3 shown to be provided with flattened filaments. Alternatively, it is also possible to leave the filaments of the edge region conventionally, ie with a, for example, round cross-section.
  • the filaments generally have a diameter between 30 .mu.m and 400 .mu.m, preferably between 80 .mu.m and 300 .mu.m.
  • the free surface 5 in the fiber transport region F is preferably between 10% and 45%.
  • the present invention is not limited to the illustrated embodiments. There are a variety of other shapes, in particular different flattenings 6 of the filaments, covered by the present invention. It is essential here that the filaments have a cross-section relative to a round cross-section, which allows the transverse movement of the fiber bundle 3 on the fabric with less resistance.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Nonwoven Fabrics (AREA)
  • Woven Fabrics (AREA)

Claims (11)

  1. Lanière de tamis pour un dispositif de condensation d'une machine à filer, qui comporte un tissu composé de filaments et qui, au moins dans une zone de transport de fibres (F) de la lanière de tamis (1), est perforée sur une surface libre (5) définie de 10% au moins pour, pendant le fonctionnement de la lanière de tamis (1), faire agir un courant d'air d'aspiration (S) sur un faisceau de fibres (3) qui y est transporté, et la lanière de tamis (1) présente une face supérieure et une face inférieure, caractérisée en ce qu'une surface des filaments entrant en contact avec le faisceau de fibres (3) se présente sous une forme aplatie par comparaison avec une surface ronde au moins dans la zone de transport de fibres (F) afin de permettre un mouvement plus facile du faisceau de fibres (3) sur la surface de la lanière de tamis (1) contrairement aux surfaces rondes et que la surface aplatie est prévue sur la face supérieure ou sur la face supérieure et la face inférieure de la lanière de tamis (1).
  2. Lanière de tamis selon la revendication précédente, caractérisée en ce que la surface aplatie est prévue dans la zone de transport de fibres (F) ou dans la zone de transport de fibres (F) et les zones de lisières de la lanière de tamis (1).
  3. Lanière de tamis selon l'une ou plusieurs des revendications précédentes, caractérisée en ce que la surface des filaments est lissée au moins dans la zone de transport de fibres (F) par usinage par enlèvement de matière, en particulier par meulage.
  4. Lanière de tamis selon l'une ou plusieurs des revendications précédentes, caractérisée en ce que la surface des filaments est calandrée au moins dans la zone de transport de fibres (F).
  5. Lanière de tamis selon l'une ou plusieurs des revendications précédentes, caractérisée en ce que les filaments présentent au moins une surface aplatie en section transversale des filaments.
  6. Lanière de tamis selon l'une ou plusieurs des revendications précédentes, caractérisée en ce que les filaments présentent une section transversale aplatie, en particulier ovale ou elliptique ou essentiellement rectangulaire.
  7. Lanière de tamis selon l'une ou plusieurs des revendications précédentes, caractérisée en ce que les filaments présentent un diamètre compris entre 30 µm et 400 µm, de préférence entre 80 µm et 300 µm.
  8. Lanière de tamis selon l'une ou plusieurs des revendications précédentes, caractérisée en ce que la surface libre (5) est de 10% à 45% dans la zone de transport de fibres (F).
  9. Lanière de tamis selon l'une ou plusieurs des revendications précédentes, caractérisée en ce que les filaments sont fusionnés et/ou pressés les uns avec les autres au moins dans la zone de transport de fibres (F), aux points de croissement du tissu.
  10. Lanière de tamis selon l'une ou plusieurs des revendications précédentes, caractérisée en ce que la lanière de tamis (1) est remplie au moins aux points de croissement par un revêtement (11), en particulier par un polymère.
  11. Lanière de tamis selon l'une ou plusieurs des revendications précédentes, caractérisée en ce que les filaments sont fusionnés ou collés les uns avec les autres dans les zones de lisières de la lanière de tamis (1) afin d'éviter un effilochage de la lanière de tamis (1).
EP14195936.1A 2013-12-05 2014-12-02 Manchon de tamis pour guides condenseurs Active EP2881500B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013113510.2A DE102013113510A1 (de) 2013-12-05 2013-12-05 Siebriemchen
DE102014106745.2A DE102014106745A1 (de) 2014-05-13 2014-05-13 Siebriemchen

Publications (2)

Publication Number Publication Date
EP2881500A1 EP2881500A1 (fr) 2015-06-10
EP2881500B1 true EP2881500B1 (fr) 2018-10-31

Family

ID=52015893

Family Applications (2)

Application Number Title Priority Date Filing Date
EP14195936.1A Active EP2881500B1 (fr) 2013-12-05 2014-12-02 Manchon de tamis pour guides condenseurs
EP14195938.7A Active EP2881501B1 (fr) 2013-12-05 2014-12-02 Manchon de tamis pour guides condenseurs

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP14195938.7A Active EP2881501B1 (fr) 2013-12-05 2014-12-02 Manchon de tamis pour guides condenseurs

Country Status (4)

Country Link
EP (2) EP2881500B1 (fr)
CN (2) CN104695067B (fr)
BR (1) BR102014029546A2 (fr)
IN (2) IN2014DE03385A (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015111133A1 (de) * 2015-07-09 2017-01-12 Maschinenfabrik Rieter Ag Spinnmaschine, Führungsstange und Riemchen
DE102021132482A1 (de) * 2021-12-09 2023-06-15 Rieter Components Germany Gmbh Verdichtungseinrichtung einer Spinnmaschine sowie Transportriemchen und Zwischenriemchen

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH368083A (de) * 1959-03-24 1963-03-15 R & E Huber Ag Riemchen für Streckwerke in Spinnereimaschinen und Verfahren zu dessen Herstellung
DE10325385A1 (de) * 2003-05-30 2004-12-23 Spindelfabrik Süssen Schurr, Stahlecker & Grill GmbH Transportband zum Transportieren eines zu verdichtenden Faserverbandes
CN1584158B (zh) * 2004-06-09 2010-12-08 无锡莱福纶生物材料有限公司 一种紧密型纺纱用网格状吸聚圈
JP4774930B2 (ja) * 2005-11-07 2011-09-21 株式会社豊田自動織機 紡機における繊維束集束装置
DE102007023172A1 (de) * 2007-05-10 2008-11-13 Wilhelm Stahlecker Gmbh Transportband zum Transportieren eines Faserverbandes
DE202007013020U1 (de) * 2007-09-17 2007-11-22 Sefar Ag Siebriemchen für ein Streckwerk einer Spinnmaschine sowie Streckvorrichtung mit einem Siebriemchen
CN202347174U (zh) * 2011-09-07 2012-07-25 常熟市迅达粉末冶金有限公司 一种抗静电紧密纺用网格圈
JP5830726B2 (ja) * 2011-11-08 2015-12-09 東レ・モノフィラメント株式会社 扁平断面ポリフェニレンサルファイドモノフィラメントおよび工業用織物

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
BR102014029546A2 (pt) 2016-05-24
IN2014DE03384A (fr) 2015-08-21
CN104695068A (zh) 2015-06-10
EP2881500A1 (fr) 2015-06-10
CN104695068B (zh) 2017-11-24
EP2881501B1 (fr) 2019-09-04
CN104695067B (zh) 2018-08-24
CN104695067A (zh) 2015-06-10
EP2881501A1 (fr) 2015-06-10
IN2014DE03385A (fr) 2015-08-21

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