EP1576217B1 - Belag für streckwerkswalzen - Google Patents

Belag für streckwerkswalzen Download PDF

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Publication number
EP1576217B1
EP1576217B1 EP03785849A EP03785849A EP1576217B1 EP 1576217 B1 EP1576217 B1 EP 1576217B1 EP 03785849 A EP03785849 A EP 03785849A EP 03785849 A EP03785849 A EP 03785849A EP 1576217 B1 EP1576217 B1 EP 1576217B1
Authority
EP
European Patent Office
Prior art keywords
layer
belt
casing
outer layer
inner layer
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
EP03785849A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1576217A1 (de
Inventor
Peter Artzt
Larisa Ausheyks
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.)
Deutsche Institute fuer Textil und Faserforschung Denkendorf DITF
Original Assignee
Deutsche Institute fuer Textil und Faserforschung Denkendorf DITF
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 Deutsche Institute fuer Textil und Faserforschung Denkendorf DITF filed Critical Deutsche Institute fuer Textil und Faserforschung Denkendorf DITF
Publication of EP1576217A1 publication Critical patent/EP1576217A1/de
Application granted granted Critical
Publication of EP1576217B1 publication Critical patent/EP1576217B1/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
    • D01H5/74—Rollers or roller bearings
    • D01H5/80—Rollers or roller bearings with covers; Cots or covers

Definitions

  • the invention relates to a roll stretching apparatus for spinning machines in which the lining for the printing rollers consists of an outer and an inner layer and the outer layer is thinner than the inner layer, and a strapping or sleeve for use as a covering for printing rolls of such stretchers for spinning machines the thinner walled outer layer loosely surrounds the thicker inner layer so that the outer layer can move relative to the inner layer.
  • the drafting roller pairs consist of a corrugated steel cylinder, the so-called lower cylinder, and a pressure roller, the so-called upper roller, which is pressed onto the steel cylinder by load.
  • This pressure roller usually has an elastic coating, so that no nipping line is formed, but by the deformation of the elastic pad a clamping surface, which causes a much better fiber retention.
  • soft roller coverings result in better distortion results, since the clamping surface is the greater, the softer the covering is.
  • the soft roll coverings have the disadvantage; that they wear out very quickly and, especially in the area of the fiber passage, grooves occur. This so-called “shrinkage” is eliminated by sanding the entire surface of the pavement. As a result, the geometry of the drafting roller and thus also the properties of the covering changes, which in turn adversely affects the draft conditions and thus the yarn values.
  • the regrinding of the roll covers is also a fairly expensive measure.
  • the elastic sheath is divided into at least two layers, wherein the outer layer is formed as an elastic sheath of a thin tube, which can be mounted on the elastic jacket of the printing cylinder.
  • the formation of the outer layer as a tube allows a slight coating of the elastic jacket and also a slight stripping of this, when this outer peripheral surface is worn.
  • the fitting of the elastic hose is ensured by the natural friction between rubber and rubber.
  • DE 1 685 634 A1 is a covering for drafting rollers of spinning machines known, which is composed of two superimposed cylindrical layers, the outer layer is harder and thinner than the inner layer. The two layers are glued together. As a result, very different materials can be combined with each other to avoid winding and electrostatic charge. However, it has been found that the problem of good delayability and wear could not be solved satisfactorily. By bonding the changing of the outer layer is also expensive.
  • German patent DE 635 372 C and its corresponding Dutch patent specification NL 42 235 C disclose a device in which a designed as a ball bearing outer ring bearing body is mounted on a journal easily running.
  • a jacket sleeve is arranged on the journal with little play, which is provided with a leather lining.
  • the existing leather covering of the jacket sleeve wears very quickly and causes insufficient clamping of the slivers.
  • the object of the invention is to eliminate these disadvantages and to find a roll covering, which has a high resistance to wear and permanent elasticity in the overlay and thus ensures optimal draft conditions over a long period.
  • the outer layer is adapted on its outer side as a fiber contact layer to the requirements of a good fiber clamping and on its inside as a running layer as smooth as possible, low-friction running of the pressure roller.
  • This is achieved, for example, in a simple manner by selecting appropriate material compositions for the fiber contact layer and the overlay of the outer layer.
  • This outer layer can be designed both as a sleeve around the inner pressure roller as well as an endless belt. It merely needs to be flexible enough to accommodate the deformation of the soft inner layer. It has proved to be particularly advantageous to form the outer layer in the running direction of the fiber structure, ie, as inelastic as possible transversely to the roll axis, ie, with little stretch.
  • the outer layer can adjust to the unevenness of the fiber structure. It is achieved in this way an excellent clamping.
  • the desired reduction in the elongation of the outer layer transversely to the pressure roll axis is achieved particularly well without restricting the extensibility in the direction of the roll axis.
  • the running layer of the outer layer are favored the relative movement between outer layer and inner layer and as a result, the reduction of the tension forces promoted even better.
  • an outer layer formed as a strap For a high delivery speed, it is expedient to use an outer layer formed as a strap and to guide this strap through a deflection rail. In addition, this deflector still have side rims for safe guidance. At high delivery speeds, it has also proved to be particularly advantageous for trouble-free operation when the apron runs at an angle ⁇ > 30 ° to the plane of the fiber structure of the pressure roller.
  • the strap suitably consists of several layers, wherein the inside is formed as a smooth running layer, the outside as a fiber contact layer. Between the layers, a thread insert is provided, which prevents the stretching in the direction of the strap, without affecting a desired transverse strain.
  • a pressure roller 3 is arranged above the drafting cylinder 5, which has a covering 2 which is firmly connected in the usual way with the pressure roller 3.
  • the drafting cylinder 5 and the pressure roller 3 form the pair of output rollers of a drafting system, which runs according to the delivery at high speed.
  • another covering 1 is provided as an outer layer.
  • This outer layer consists in the embodiment shown here of a thin-walled sleeve 1 made of flexible material, which behaves almost without stretch in the direction of the sleeve 1 relative to the material of the inner layer 2.
  • This sleeve 1 is loosely placed over the inner layer 2 of the pressure roller 3, so that a gap 6 can form in the non-loaded area between the inner and outer layers. It is essential that the sleeve 1 can move relative to the inner layer 2 of the pressure roller 3.
  • the inner layer 2 however, as usual firmly mounted on the pressure roller 3. Under the load of the pressure roller 3, the soft inner layer 2 is pressed onto the drafting cylinder 5 and deformed, so that no linear contact with the drafting cylinder 5 takes place, but a surface support takes place.
  • the outer layer 1 is thin and flexible, it adapts to the deformation of the inner layer 2, without itself being significantly compressed. In the outer layer 1, therefore, no appreciable flexing work is done in contrast to the inner layer.
  • the clamping surface generated by the deformation of the inner layer 2 is passed through the outer layer 1, so that the intended for the delay fiber structure F is clamped by means of this clamping surface when passing through the pair of rollers 3 and 5.
  • the outer layer is designed as a cylindrical sleeve 1. But it can also be run as a long Endlosriemcheh. Both this cylindrical sleeve 1, as well as a Dressing 10 or 100, can be replaced easily in the case of wear or a groove formation in the area of the fiber structure F.
  • an Endlosriemchen 10 is shown, which surrounds the pressure roller 3 with its soft, elastic inner layer 2 and is guided by a deflection rail 4.
  • the training as a longer Endlosriemchen 10 or 100 and its leadership by means of the deflection rail 4 has proved to be particularly advantageous when high delivery speeds are driven.
  • the drafting roller pair forming drafting rollers 3 and 5 run about 20 to 30 times faster than the roller pairs arranged in front of the main drafting zone, which are usually surrounded by Faser enclosuresriemchen. These known Faser operationsriemchen have proved to be unsuitable for use as outer layer 1 on the pair of output rollers 3 and 5. These straps are inadequate in their properties. For example, it has been shown that it is important that the outer layer 1 or the strap 10 or 100 in the running direction of the fiber structure F, d. H. transverse to the roll axis 31 is as inelastic as possible, so that it can not stretch.
  • FIG. 4 shows the construction of an outer layer 1, 10 or 100 in cross section, which is specifically aligned to these desired properties.
  • the outer layer formed as sleeve 1 or elongated endless strap 10 or 100 is expediently composed of several layers: a fiber contact layer 101 and a running layer 102. Between the two layers 101 and 102, a thread insert 103 is arranged in the longitudinal direction for eliminating the elongation, said thread insert 103 being fixedly connected both to the fiber contact layer 101 and to the running layer 102.
  • the fiber contact layer 101 is designed in its surface and in its material for contact with the fiber structure F for receiving the necessary during delay retention forces. This is achieved, for example, by using a material such as is used for pusher covers.
  • the running layer 102 is provided with a smooth, surface-promoting surface in order to allow the inner layer 2 to move relative to the outer layer 100, 10 or 1.
  • a slip-promoting material is preferably used for the running layer 102, as is used, for example, for the known straps for guiding the fibers in the main drafting zone.
  • the thread insert 103 takes the strap 100 in the direction of elasticity, so that an elongation is practically impossible. Transversely to the running direction, that is, in the direction of the pressure roller axis 31, however, the extensibility remains.
  • the strap can adapt to the unevenness of the warped fiber structure F, so that always a good clamping is guaranteed.
  • a total thickness of 0.8 to 1.0 mm has proven to be very good both in terms of stability and the distortion results: it was even after several years running time no groove formation (inlet) can be determined.
  • the desired properties of the overlay 102 and the fiber contact layer 101 can also be achieved by appropriate physical design of the surfaces.
  • the running layer 102 and the fiber contact layer 101 of different materials which have the desired sliding properties or the necessary "Gripp". Measurements according to DIN 53375 have shown that, for example, the material described above for the fiber contact layer 101 has a frictional force value which is at least twice as high as the frictional force value of the material of the overlay 102, if this consists of a material, as is the case for straps Fiber guide is used in the main drafting field.
  • the running layer 102 thus has good sliding properties, while the fiber contact layer 101 causes an excellent clamping of the fibers.
  • a strap 100 is guided by a deflecting rail 4.
  • the deflecting rail 4 is not only rounded, but additionally provided with a low-friction coating.
  • a cage 42 connects with guide rims 41.
  • the belt 100 runs off the drafting roller 3 at an angle ⁇ with respect to the plane of the fiber structure F. As a result, turbulence and flight formation in the exit region of the fiber structure F are avoided.
  • the cage 42 is supported on the support rail 44 via compression springs 43, so that the deflection rail 4 exerts a tension on the strap 100.
  • the side walls 41 serve for the lateral guidance of the strap 100.
  • the strap 100 is relieved and can easily be lifted over the side walls 41.
  • This side walls 41 are used in addition to the encapsulation of the space between the pressure roller 3 and deflecting rail 4 for lateral guidance of the strap 100.
  • the outer layer 1 of the pressure roller 3 is arranged asymmetrically to the fiber structure F, the outer layer 1 can be turned so that the left side itself located on the right side and thus the fiber structure F over an unused surface of the outer layer runs.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Laminated Bodies (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
EP03785849A 2002-12-19 2003-12-17 Belag für streckwerkswalzen Expired - Lifetime EP1576217B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10260025A DE10260025A1 (de) 2002-12-19 2002-12-19 Belag für Streckwerkswalzen
DE10260025 2002-12-19
PCT/EP2003/014369 WO2004057072A1 (de) 2002-12-19 2003-12-17 Belag für streckwerkswalzen

Publications (2)

Publication Number Publication Date
EP1576217A1 EP1576217A1 (de) 2005-09-21
EP1576217B1 true EP1576217B1 (de) 2010-02-17

Family

ID=32477874

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03785849A Expired - Lifetime EP1576217B1 (de) 2002-12-19 2003-12-17 Belag für streckwerkswalzen

Country Status (9)

Country Link
US (1) US7140172B2 (es)
EP (1) EP1576217B1 (es)
JP (1) JP4454501B2 (es)
CN (1) CN1729323B (es)
AT (1) ATE458075T1 (es)
AU (1) AU2003294876A1 (es)
DE (2) DE10260025A1 (es)
ES (1) ES2338546T3 (es)
WO (1) WO2004057072A1 (es)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10348452B4 (de) * 2003-10-17 2008-07-03 Deutsche Institute für Textil- und Faserforschung Stuttgart Streckwerk mit von Riemchen umschlungenen Zwillings-Ausgangsoberwalzen
JP2005179857A (ja) * 2003-12-22 2005-07-07 Murata Mach Ltd ドラフト装置
DE102006011128B4 (de) * 2006-03-08 2016-04-28 Deutsche Institute für Textil- und Faserforschung Stuttgart Walzenstreckvorrichtung
CN101148793B (zh) * 2006-09-22 2010-06-09 武汉远景天门纺织机械有限公司 一种并条机上的空心皮辊
DE102007014157A1 (de) * 2007-03-21 2008-09-25 Sipra Patententwicklungs- Und Beteiligungsgesellschaft Mbh Streckwerk mit wenigstens einem Riemchen zur Verfeinerung von Fasermaterial
DE102012014152A1 (de) * 2012-07-18 2014-01-23 Trützschler GmbH & Co Kommanditgesellschaft Vorrichtung an einer Spinnereimaschine, insbesondere Karde, Strecke Kämmmaschine, Bandwickler o. dgl. mit einem Streckwerk
CN102995181B (zh) * 2012-10-31 2016-02-17 江苏高博智融科技有限公司 一种纺织皮圈
CN104073931A (zh) * 2014-06-12 2014-10-01 吴江久美微纤织造有限公司 一种纺纱皮圈

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1888549U (de) * 1964-02-27 Pierre Randon, Roubaix, Nord und Bernard Buret, La Madeleine, Nord (Frankreich) Streckzylinder für Spinnmaschinen
NL42235C (es) * 1900-01-01
US1456458A (en) * 1922-09-19 1923-05-22 Nordell Carl Roll cover
US1749393A (en) * 1928-05-29 1930-03-04 Pflimlin Jules Drawing device for spinning frames and for preparing machinery
GB643666A (en) * 1947-02-28 1950-09-27 Dayton Rubber Mfg Co Improvements in and relating to aprons for textile machinery
US2948024A (en) * 1956-06-29 1960-08-09 Kenneth P Swanson Lint sealing assembly for textile drafting rolls
DE1815739U (de) * 1960-02-12 1960-07-28 Adolf Bockemuehl Fa Druckzylinder fuer spinnereimaschinen.
DE1815759U (de) * 1960-03-19 1960-07-28 Zenith Maschinenfabrik G M B H Steinformmaschine mit mechanischer formfuellvorrichtung.
CH442095A (de) 1966-08-25 1967-08-15 R & E Huber Schweizerische Kab Mit einem elastischen Belag versehene Walze für Streckwerk an Spinnereimaschine
DE1815739A1 (de) 1968-12-19 1970-07-09 Hoeflinger & Karg Packung fuer Ampullen,Glaeser,Flaeschchen od.dgl.
US5451197A (en) * 1994-09-02 1995-09-19 Grant; Kenneth R. Roll assembly with alignment spacer
DE19907905C2 (de) * 1999-02-24 2002-06-20 Skf Textilmasch Komponenten Walze für Riemchenstreckwerke
DE10008610A1 (de) 2000-02-24 2001-08-30 Zinser Textilmaschinen Gmbh Streckwerk für eine Spinnereimaschine

Also Published As

Publication number Publication date
JP4454501B2 (ja) 2010-04-21
DE50312437D1 (de) 2010-04-01
DE10260025A1 (de) 2004-07-08
CN1729323A (zh) 2006-02-01
ES2338546T3 (es) 2010-05-10
CN1729323B (zh) 2010-05-12
JP2006510816A (ja) 2006-03-30
EP1576217A1 (de) 2005-09-21
AU2003294876A1 (en) 2004-07-14
WO2004057072A1 (de) 2004-07-08
US20060075738A1 (en) 2006-04-13
US7140172B2 (en) 2006-11-28
ATE458075T1 (de) 2010-03-15

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