EP1991725B1 - Verschleissschicht für ausgangswalzen einer walzenstreckvorrichtung - Google Patents

Verschleissschicht für ausgangswalzen einer walzenstreckvorrichtung Download PDF

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Publication number
EP1991725B1
EP1991725B1 EP07704107.7A EP07704107A EP1991725B1 EP 1991725 B1 EP1991725 B1 EP 1991725B1 EP 07704107 A EP07704107 A EP 07704107A EP 1991725 B1 EP1991725 B1 EP 1991725B1
Authority
EP
European Patent Office
Prior art keywords
deflecting rail
apron
rail
pressure roller
cross
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.)
Not-in-force
Application number
EP07704107.7A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1991725A1 (de
Inventor
Peter Artzt
Heinz Müller
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 Stuttgart
Original Assignee
Deutsche Institute fuer Textil und Faserforschung Stuttgart
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 Stuttgart filed Critical Deutsche Institute fuer Textil und Faserforschung Stuttgart
Publication of EP1991725A1 publication Critical patent/EP1991725A1/de
Application granted granted Critical
Publication of EP1991725B1 publication Critical patent/EP1991725B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • D01H5/26—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
    • D01H5/74—Rollers or roller bearings
    • D01H5/80—Rollers or roller bearings with covers; Cots or covers
    • 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
    • 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

Definitions

  • the invention relates to a roll stretching apparatus for spinning machines in which the lining for the printing roller at the exit of a default field consists of an outer and an inner layer attached to the printing roll core and the outer layer is thinner and harder than the inner layer, wherein the outer layer loosely surrounds the inner layer, so that the outer layer can move relative to the inner layer.
  • Such a device is in the DE 102 60 025.2 described. Since the Riemchenbelag at the output cylinder has a about 40 times higher running speed than is the case with conventional Verzugsriemchen, it is very important that the Riemchenbelag is well managed and causes as little friction on the deflection.
  • the clamping force required for the guidance of the Riemchenbelages is therefore very low and functional only generated by the fact that the Riemchenbelag in the unloaded state in the circumferential direction approximately circular form will take ( DE 103 48 452 A1 ). Due to this low voltage with which the belt lining slides over the deflecting rail, fibers accumulate on the deflecting rail during prolonged operation of this device. As a result, windings form around the deflection rail, which prevent easy sliding over the deflection rail and generate an ever higher voltage, which ultimately leads to the breakage of the deflection rail.
  • the running properties of the Riemchenbelages on the deflection rail are affected by the fact that the applied to prevent longitudinal thread insert is usually produced by winding a thread on the first inner layer, which is then covered with another layer. As a result, it happens again and again that at the high speed of the belt lining behaves asymmetrically according to the winding and has the tendency to one side expire. By attaching Borden to the deflecting this can be counteracted. However, the edges of the Riemchenbelages are strained and worn by the tarnishing against the board.
  • the object of the invention is to avoid the disadvantages described and to avoid interference during sliding of the very fast running Riemchenbelages on the deflection.
  • the circumference of the cross section of the deflection rail is greater than the length of the longest fiber of the fiber material processed on the stretching device. Due to the curvature of Riemchengleit Chemistry the deflection rail transversely to Riemchenlaufraum startup of the fast-running Riemchenbelages is avoided at Begrenzungsborde. The limitation by shelves can even be omitted altogether, especially if the covering formed as Endlosriemchen is equipped with a double thread insert, the thread inserts are wound in opposite directions.
  • the opposite winding of the thread insert eliminates the asymmetric behavior of the Riemchenbelages at high speeds.
  • the rigid holder for the Riemchenbelag is preferably freely rotatably mounted on the pressure roller axle and is supported by stops on Oberwalzentragarm the stretching device. In this way, a particularly simple and reliable guidance of the Riemchenbelages is achieved.
  • the stretching device in FIG. 1 shows the usual construction of a Doppelriemchenstreckwerkes with the lower cylinders 31, 61 and 71, by means of which the fiber strand F is warped to a thread F '.
  • the middle pressure roller 6 is wrapped by a Verzugsriemchen 60, which is guided by the Riemchen Kofig 63 and tensioned.
  • the lower cylinder 61 is looped by a Verzugsriemchen 62, which runs over the deflection rail 64 and against the Oberriemchen 60 is pressed.
  • the delivery cylinder pair consists of the lower cylinder 31 and the pressure roller 3, which is wrapped by a Riemchenbelag 1, which runs over the deflection rail 2. Since the pressure roller 3 is about the 40 illustration. 60 times the speed of the pressure rollers 6 and 7, the Belagriemchen must 1 run very fast.
  • the deflecting rail 2 is therefore provided with a smooth, low-friction Riemchengleit Structure 27, and formed as a belt lining 1 of the pressure roller 3 is only slightly stretched. It suffices for this purpose, the residual stress of Riemchenbelages 1, which would assume circular shape in the free unstressed state. Due to the arrangement of the deflection rail 2, the belt covering 1 is stretched. The resulting tension is sufficient for the smooth running of the Riemchenbelages. 1
  • a cleaning roller 5 is arranged in a conventional manner to keep the Riemchenbelag 1 of fibers free.
  • the stretching device accumulate on the inside of the Riemchenbelages 1 between the Riemchenbelag 1 and the Riemchengleit Structure 27 of the deflecting rail 2 fibers that can not be eliminated or prevented by the cleaning roller.
  • These fibers settle, so that there is an ever greater accumulation of fibers on the sliding surface 27 of the deflection rail 2 and the tension of the Riemchenbelages 1 increases inadmissible. The tension can even become so great that not only the apron pad 1 is considerably braked and thus the run is impaired, but that the deflecting rail 2 breaks.
  • the deflection rail 2 Due to the design of the deflection rail 2, in particular of the cross-sectional circumference U, the accumulation of fibers between the belt covering 1 and the belt sliding surface 27 of the deflection rail 2 is counteracted. It has been shown that it depends on the size of the circumference U, which should be greater than the average staple length of the distorted on the stretching device fiber material in any case. Good results have been achieved, for example, with a cross-sectional circumference U of the deflecting rail 2 of at least 1.5 times the mean fiber length.
  • the cross-sectional circumference U of the deflection rail 2 should be slightly longer than the longest fiber of the fiber material warped on the roll stretching device be.
  • the cross-sectional shape also plays a certain role here. It can be circular according to FIG. 2 , However, it has been shown that cross-sectional shapes, as in FIG. 1 shown or in the FIGS. 3 and 4 It is best to avoid the accumulation of fibers under the belt covering 1. Nevertheless, it is important that the cross-sectional circumference U is sufficiently large so that the fibers can not form a ring around the deflecting rail 2.
  • FIG. 3 shows, for example, a cross section in which the Riemchengleit Matter 27 is circular arc-shaped, while the flanks are flattened. In the deflection rail 2 according to FIG.
  • FIG. 1 is the cross section of the deflecting rail 2 rectangular, but the small sides are rounded arcuate, so that the Riemchengleit Structure 27 is rounded.
  • the Riemchengleit Structure 27 of the deflection rail 22 is also rounded, but the sides held straight.
  • This cross-sectional shape is particularly resistant to compressive loads and provides a smaller Riemchengleit Structure 27, so that little friction is exerted on the Riemchenbelag 1.
  • a cleaning roller 5 is suitably arranged above the printing cylinder 3, to keep the Riemchenbelag 1 on its outside of fibers free.
  • FIG. 5 shows the holder 4 with two pairs arranged Umlenkschienen 23.
  • the holder 4 has cheeks 41, with which he sits on the axis 65 of the pressure roller 3.
  • the cheeks 41 are made in one piece with the two deflection rails 23.
  • the deflecting rails 23 have cylindrical Riemchengleit vom 27 with side rims 24, which prevent drainage of the Riemchenbelages 1. Due to the one-piece design of the holder 4 with the deflection rails 23 of this part is particularly cheap to manufacture and as only a part to assemble.
  • FIG. 6 shows a similar embodiment as in FIG. 5
  • the Umlenkschienen 200 in the cheeks 41 of the holder 4 by means of a thread 201 screwed and can be replaced without replacing the holder 4.
  • the deflection rails 200 are equipped with a slightly curved Riemchengleit Structure 203.
  • the Riemchenbelag 1 is held centrally on the sliding surface 203 and avoid tarnishing to the sleeve 204.
  • a board can be omitted, which facilitates the removal of the Riemchenbelages 1.
  • FIG. 8 is a further embodiment of a holder 40 for the Riemchenbelag 1 shown.
  • deflecting rails 25 are formed in pairs on the cheeks 42 of the holder 40, so that they form a part with the holder 40.
  • the cheeks 42 have recesses 44, with which the holder 40 is seated on the axis 65 of the pressure roller 3 and is supported.
  • a side board 26 is formed in each case, which projects beyond the Riemchengleit Structure 203 of the deflection rail 25.
  • FIG. 9 the holder 40 is shown in the installed position, the view of the holder 40 the section AA of FIG. 8 equivalent.
  • the axis 65 of the pressure roller 3 is held in the usual manner in a spring clamp not shown in Oberwalzentragarm 51.
  • the holder 40 engages by means of the recesses 44 on the pressure roller axis 65 to which it is freely pivotable.
  • the pressure exerted on the pressure roller 3 and Riemchenbelag 1 torque of the holder 40 is pivoted in operation counterclockwise, so that it is supported on the stops 43 on Oberwalzentragarm 51 and is fixed in this position. Appropriately, this should be done at an angle ⁇ of about 30 °.
  • This attachment is extremely simple and ensures without special fasteners assembly and disassembly of the entire holder 40 together with the Belagriemchen 1.
  • the Belagriemchen 1 can be easily strip from the pressure roller 3 laterally beyond the board 26 of the deflection rail 25. Still, it's a reliable one Holder and guide the Riemchenbelages 1 guaranteed even at high rotational speeds of the pressure roller 3.
  • the Riemchenbelag 1 is stiffened by a thread insert in the direction of the Riemchenbelages 1 and thus largely inelastic in this direction.
  • the thread insert is wound in the manufacture of the Riemchenbelages 1 in a spiral on the running layer of Riemchenbelages 1.
  • the Riemchenkanten 13 should be completely smooth, so that no fibers caught on it and can be taken. Such fringe-free cutting is achieved by laser cutting.
  • the strap covering 1 exhibits an asymmetrical behavior and runs on one side against the board 24.
  • the edges 13, which are cut in a smooth manner, are roughened, and fringe formation and the above-described negative effects again occur.
  • a thread insert 11 in Z-shape and a thread insert 12 in S-shape a crossing of the threads in the spiral winding.
  • this counteracts the asymmetric behavior.
  • the Riemchenbelag 10 runs evenly, so that there is no damage by tarnishing at the edges 13.
  • the ribs 24 can even be omitted if the Riemchengleit Structure 203 of the deflecting rail 200 has a slight curvature transverse to Riemchenlaufraum.
  • the Riemchenbelag 10 is thereby always held and guided in the middle of the sliding surface 203.
  • the omission of the outer rims 24 also has the advantage that the Riemchenbelag 10 can be replaced easily, even if the deflection rail 200 is rigidly arranged. In the execution according to FIG. 6 the strap pad 10 can simply slide down to the side of the deflection rail 200. A lifting over a board is not required.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
EP07704107.7A 2006-03-08 2007-01-24 Verschleissschicht für ausgangswalzen einer walzenstreckvorrichtung Not-in-force EP1991725B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006011128.1A DE102006011128B4 (de) 2006-03-08 2006-03-08 Walzenstreckvorrichtung
PCT/EP2007/050675 WO2007101742A1 (de) 2006-03-08 2007-01-24 Verschleissschicht für ausgangswalzen einer walzenstreckvorrichtung

Publications (2)

Publication Number Publication Date
EP1991725A1 EP1991725A1 (de) 2008-11-19
EP1991725B1 true EP1991725B1 (de) 2016-01-20

Family

ID=37963530

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07704107.7A Not-in-force EP1991725B1 (de) 2006-03-08 2007-01-24 Verschleissschicht für ausgangswalzen einer walzenstreckvorrichtung

Country Status (8)

Country Link
US (1) US8099835B2 (zh)
EP (1) EP1991725B1 (zh)
JP (1) JP5112341B2 (zh)
KR (1) KR101403802B1 (zh)
CN (1) CN101395309B (zh)
BR (1) BRPI0708749A2 (zh)
DE (1) DE102006011128B4 (zh)
WO (1) WO2007101742A1 (zh)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8650718B2 (en) * 2009-03-31 2014-02-18 Ozdilek Ev Tekstil Sanayi Ve Ticaret Anonim Sirketi In yarn production, apron cladding mechanism and method to the rollers coated with elastic material and found in the drafting and guiding zone, having shift structure and pre-tensioning mechanism
CN113388924B (zh) * 2021-06-03 2022-05-13 东台市润生纺机专件有限公司 一种精梳机罗拉

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE816069C (de) * 1950-03-08 1951-10-08 Deutscher Spinnereimaschb Ingo Streckwerk fuer Spinnmaschinen
GB1115179A (en) 1964-12-22 1968-05-29 Dayco Corp Textile fibre drafting apron
JPS5315182B2 (zh) * 1974-04-19 1978-05-23
FR2445400A1 (fr) 1978-12-28 1980-07-25 Dayco Corp Laniere textile notamment pour courroie, et son procede de fabrication
JPS55106676U (zh) * 1979-01-19 1980-07-25
DE4104249A1 (de) * 1991-02-13 1992-08-20 Stahlecker Fritz Streckwerk fuer spinnmaschinen
CN1069783A (zh) * 1991-08-27 1993-03-10 唐思德 纺纱机械皮圈销皮圈
DE10008610A1 (de) * 2000-02-24 2001-08-30 Zinser Textilmaschinen Gmbh Streckwerk für eine Spinnereimaschine
DE10260025A1 (de) * 2002-12-19 2004-07-08 Deutsche Institute für Textil- und Faserforschung (DITF) Belag für Streckwerkswalzen
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

Also Published As

Publication number Publication date
DE102006011128A1 (de) 2007-09-13
JP5112341B2 (ja) 2013-01-09
US20090144942A1 (en) 2009-06-11
KR20080102424A (ko) 2008-11-25
EP1991725A1 (de) 2008-11-19
CN101395309B (zh) 2011-03-30
US8099835B2 (en) 2012-01-24
DE102006011128B4 (de) 2016-04-28
CN101395309A (zh) 2009-03-25
BRPI0708749A2 (pt) 2011-06-28
KR101403802B1 (ko) 2014-06-03
JP2009529105A (ja) 2009-08-13
WO2007101742A1 (de) 2007-09-13

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