EP1490539B1 - Pneumatische verdichtungseinrichtung für einen faserverband und verfahren zum pneumatischen verdichten eines faserverbandes - Google Patents

Pneumatische verdichtungseinrichtung für einen faserverband und verfahren zum pneumatischen verdichten eines faserverbandes Download PDF

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Publication number
EP1490539B1
EP1490539B1 EP03718644A EP03718644A EP1490539B1 EP 1490539 B1 EP1490539 B1 EP 1490539B1 EP 03718644 A EP03718644 A EP 03718644A EP 03718644 A EP03718644 A EP 03718644A EP 1490539 B1 EP1490539 B1 EP 1490539B1
Authority
EP
European Patent Office
Prior art keywords
condensing device
fibre composite
condensing
suction
air
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
EP03718644A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1490539A1 (de
Inventor
Peter Artzt
Jürgen Schneider
Theo GRÜN
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.)
Oerlikon Textile GmbH and Co KG
Original Assignee
Saurer GmbH and Co KG
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 Saurer GmbH and Co KG filed Critical Saurer GmbH and Co KG
Publication of EP1490539A1 publication Critical patent/EP1490539A1/de
Application granted granted Critical
Publication of EP1490539B1 publication Critical patent/EP1490539B1/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
    • D01H5/18—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
    • 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

Definitions

  • the invention relates to a pneumatic compression device for a fiber structure, which had preferably been previously distorted in a drafting system of a spinning machine, according to the preamble of claim 1.
  • Object of the present invention is to improve a compression device of the aforementioned type in the simplest and most cost-effective manner so.
  • This object is achieved according to the invention by providing a cover which has at least one guide means extending in the running direction of the fiber structure for the air causing the compression. As a result, a preferably along the fiber structure extending air flow and therefore an excellent compression is possible.
  • the guide means may be formed, for example, as elevations in the manner of a pair of rails, but preferably because of cost-effective feasibility and material savings, as a groove.
  • the cross-sectional area of the groove is significantly larger than the diameter of the groove passing fiber structure, on the one hand achieved that it opposes the intake air low resistance and sets in her a strong flow of air along the continuous fiber structure. On the other hand it is achieved that the fiber structure does not slide along the flanks of the groove and is roughly roughened there. The fiber structure should therefore not be compressed mechanically by the groove.
  • the cross-sectional area of the groove may be square or rounded.
  • it tapers in the direction of the fiber flow. Since air is sucked out of the groove over the course of the compression zone, it can be achieved that the velocity of the air flow along the fiber structure in this compression zone remains approximately at the same level.
  • flanks of the groove can be straight or convex, they can also run in an initial area like a funnel toward each other and then parallel.
  • a particularly strong air flow along the fiber structure is achieved when it is ensured in a further embodiment of the invention that between the air inlet opening having surface of the suction shoe and the cover only such a distance is provided which allows a jam-free passage of the means of transport.
  • lateral inflow of compressed air as desired in known compacting devices, is prevented as far as possible in contrast to those in the device according to the invention.
  • the invention is based on a compacting device, which consists for example of a suction shoe with vacuum connection and a guided around a delivery roller perforated belt as a means of transport.
  • the apron has a plurality of successively arranged perforations in the running direction of the fiber structure. As soon as the fibers of the uncompressed fiber structure are caught by the suction air flow, they are pushed together and compressed by the latter.
  • a drafting 1 for a spinning machine for warping and bundling a fiber strand 2 is shown. It has a first pair of rollers 3 and a second pair of rollers 4 , which an output roller pair 5 is arranged downstream. In the area between the second pair of rollers 4 and the pair of output rollers 5 , the main distortion of the fiber structure 2 takes place.
  • To the output roller pair 5 includes a pneumatic compression device 10 .
  • This is downstream of a delivery device 20 , which in turn has a pair of rollers 6 .
  • the fiber structure 2 is in Pfeilrichturig between and transported through the preferably in known manner by an electric motor driven roller pairs 3, 4, 5 and 6 .
  • perforations 16 transport 15 which is designed here as a strap, application, as it is known for example from the previously mentioned DE 197 22 528 A1.
  • the area between the pair of output rollers 5 and the roller pair 6 of the delivery device 20 is a so-called fiber bundling zone 7.
  • the fiber structure 2 leaving the delivery roller pair 5 of the drafting system 1 is exposed to a suction air flow 8 (FIG. 3).
  • the suction air stream 8 is generated by a suction device 9 which extends on the side facing away from the fiber structure 2 side of the transport means 15 between the pair of output rollers 5 and the delivery device 20 .
  • the suction device 9 has a suction shoe 17 , over which the perforated belt, ie the transport means 15, is guided.
  • the perforations 16 of the transport means 15 extend at least over the width of a traversing of emerging from the pair of output rollers 5 fiber strand 2, which is guided in accordance with the suction opening of the suction shoe 17 of the suction device 9 .
  • the suction shoe 17 is positioned between the pairs of rollers 5 and 6 so that it is closer to the centers (the generally circular in cross section as usual circular) rollers arranged below than the rolls arranged above. The suction shoe 17 thus protrudes relatively far down into the fiber-bundling zone 7 .
  • the suction opening of the suction device 9 opposite a cover 30 is arranged.
  • the cover 30 is designed as a rail and extends over the entire width of the drafting system 1. It has a width B itself , which is matched to the size of the suction opening of the suction device, in particular approximately the same size as this in the running direction of the fiber structure 2. Between the air inlet opening having surface 18 of the suction shoe 17 and the cover 30 there is a distance that ensures a jam-free passage of the strap 15 .
  • the suction shoe 17 is supported with a nose 19 on the cover 30 , as shown in FIG. 2a.
  • the cover 30 is, as shown in FIGS. 1 and 2, curved downwards and viewed in the running direction of the fiber structure 2 , rear slightly higher than the front.
  • the cover 30 has guide means 31, 31 ' for the fiber structure 2 .
  • the guide means 31, 31 ' are formed as grooves and extend with their length L straight ahead in the running direction of the fiber structure 2 over the entire width B of the cover 30.
  • the width of the grooves 31, 31' is matched to the thickness of the fiber structure 2 ; its cross-section, as shown in FIG. 3 , is significantly greater than that of the fiber structure 2 passing through it .
  • the grooves 31 are rectangular in cross-section and have at the beginning of a width b1, which is about twice as large as the thickness of the uncompressed fiber structure 2 . After about a quarter of their length L , the grooves 31 narrow to a width b2, which is about half as large as the width b1. The flanks 32 of the grooves 31 thus approach each other in the entrance area of the fiber structure 2 and then continue parallel to each other.
  • the groove depth here corresponds at least approximately to the thickness of the uncompressed fiber structure 2.
  • a groove 31 ' is shown, whose flanks 32' are convexly curved. Otherwise, the groove 31 'is the same as the grooves 31 formed.
  • the grooves 31, 31 ' so constructed as a suction channel, in which sets a strong flow of air along the continuous fiber strand 2 .
  • an excellent compression of the fiber structure 2 is made possible.
  • the fiber structure 2 can not only be subjected, as described above, to an air flow in the direction of fiber travel, but simultaneously or later to an air flow transversely thereto in order to achieve the best possible compression.
  • the speed of the compression-causing air should be many times higher than the speed of the continuous fiber strand 2. It can be up to ten times the fiber strand speed. In practice, it has proven to be very effective to choose the speed of the compression-causing air about twice as high as the speed of the continuous fiber strand 2 .
  • a great advantage of the device according to the invention and the method according to the invention is that the air requirement compared to known devices and methods just because of the guide means according to the invention for the compression effecting air lowered and thereby more economical work is guaranteed.
  • blowing air can also be used to support the compression effect of the suction air. This allows an even better compaction of the fiber structure and thus ultimately an even higher yarn quality can be achieved.
  • the inventionsver maleüch can also be used in compression devices having transport, for example in the form of a Siebriemchens.
  • the suction opening is then preferably designed as a narrow, straight or inclined suction slot. At an angle lying suction slot, the groove is of course to turn off the oblique position of the slot.
  • the invention can also be used in compacting devices which have transport means, for example in the form of a rigid, driven drum or in the form of a peripheral sleeve, which have a screen surface or a perforation track.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
EP03718644A 2002-04-02 2003-03-29 Pneumatische verdichtungseinrichtung für einen faserverband und verfahren zum pneumatischen verdichten eines faserverbandes Expired - Lifetime EP1490539B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE2002114641 DE10214641B4 (de) 2002-04-02 2002-04-02 Pneumatische Verdichtungseinrichtung für einen Faserverband und Verfahren zum pneumatischen Verdichten eines Faserverbandes
DE10214641 2002-04-02
PCT/DE2003/001041 WO2003083192A1 (de) 2002-04-02 2003-03-29 Pneumatische verdichtungseinrichtung für einen faserverband und verfahren zum pneumatischen verdichten eines faserverbandes

Publications (2)

Publication Number Publication Date
EP1490539A1 EP1490539A1 (de) 2004-12-29
EP1490539B1 true EP1490539B1 (de) 2006-05-10

Family

ID=28458538

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03718644A Expired - Lifetime EP1490539B1 (de) 2002-04-02 2003-03-29 Pneumatische verdichtungseinrichtung für einen faserverband und verfahren zum pneumatischen verdichten eines faserverbandes

Country Status (6)

Country Link
EP (1) EP1490539B1 (ja)
JP (1) JP4156525B2 (ja)
CN (1) CN100352983C (ja)
DE (1) DE10214641B4 (ja)
ES (1) ES2261930T3 (ja)
WO (1) WO2003083192A1 (ja)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10322575A1 (de) * 2003-05-20 2004-12-09 Saurer Gmbh & Co. Kg Ringspinnmaschine mit Verdichtungsvorrichtungen
DE102005045451B4 (de) * 2005-09-22 2008-05-08 Oerlikon Textile Gmbh & Co. Kg Vorrichtung zum Verdichten eines Faserverbandes
CN104131371A (zh) * 2014-07-07 2014-11-05 吴江市金桥纺织品有限公司 一种集聚纺纱装置
DE102019113796A1 (de) * 2019-05-23 2020-11-26 Saurer Spinning Solutions Gmbh & Co. Kg Verdichtungsvorrichtung für eine Spinnmaschine, Streckwerk mit der Verdichtungsvorrichtung und Verfahren zum Betreiben der Verdichtungsvorrichtung
DE102019128326A1 (de) * 2019-10-21 2021-04-22 Saurer Spinning Solutions Gmbh & Co. Kg Verdichtungsvorrichtung für ein Streckwerk einer Spinnmaschine sowie Streckwerk für eine Verdichtungsvorrichtung

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4323472C2 (de) * 1993-07-14 1997-08-07 Inst F Textil Und Verfahrenste Doppelriemchen-Streckwerk
DE4426249C2 (de) * 1994-07-25 2003-08-07 Rieter Ag Maschf Spinnverfahren und Spinnmaschine mit abgedeckter Saugwalze am Streckwerk
DE4426278B4 (de) * 1994-07-25 2007-02-01 Maschinenfabrik Rieter Ag Spinnmaschine mit Kondensationsstufe
DE19722528C2 (de) * 1997-03-08 2003-09-25 Inst Textil & Faserforschung Doppelriemchen-Streckwerk
DE19856121C2 (de) * 1998-12-04 2003-12-18 Zinser Textilmaschinen Gmbh Verfahren und Vorrichtung zur Herstellung von verdichtetem Garn
DE10008610A1 (de) * 2000-02-24 2001-08-30 Zinser Textilmaschinen Gmbh Streckwerk für eine Spinnereimaschine
DE10042689A1 (de) * 2000-08-31 2002-03-14 Fritz Stahlecker Vorrichtung zum Verdichten eines Faserverbandes

Also Published As

Publication number Publication date
CN100352983C (zh) 2007-12-05
WO2003083192A1 (de) 2003-10-09
ES2261930T3 (es) 2006-11-16
CN1646744A (zh) 2005-07-27
JP4156525B2 (ja) 2008-09-24
DE10214641A1 (de) 2003-10-23
DE10214641B4 (de) 2007-02-22
JP2005521802A (ja) 2005-07-21
EP1490539A1 (de) 2004-12-29

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