EP0602388B1 - Druckstab - Google Patents
Druckstab Download PDFInfo
- Publication number
- EP0602388B1 EP0602388B1 EP93118239A EP93118239A EP0602388B1 EP 0602388 B1 EP0602388 B1 EP 0602388B1 EP 93118239 A EP93118239 A EP 93118239A EP 93118239 A EP93118239 A EP 93118239A EP 0602388 B1 EP0602388 B1 EP 0602388B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pressing rod
- pressure rod
- sliver
- deposits
- drafting system
- 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
Links
Images
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H13/00—Other common constructional features, details or accessories
- D01H13/04—Guides for slivers, rovings, or yarns; Smoothing dies
-
- 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
- D01H5/22—Drafting machines or arrangements without fallers or like pinned bars in which fibres are controlled by rollers only
-
- 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
Definitions
- the invention relates to a pressure rod according to the preamble of claim 1.
- the centerpiece of a route is the drafting system.
- the drafting system textile slivers are presented. There is a delay of the Slivers. In the case of warping, the sliver becomes through the warping fields spread to non-woven and after leaving the last one Distortion field again formed into a sliver. The amount of Distortion is to be adjusted to the sliver material, with the stack length is an important material parameter.
- the drafting system will formed by a number of pairs of rollers, one after the other are arranged and form fields of delay. Usual drafting systems usually form a pre-default field and a main default field.
- the clamping line distances adjustable between the pairs of rollers.
- a special tour in the main default area This is accomplished through the pressure rod.
- the pressure rod is an immobile, fixed, rod extending over the drafting system width. The pressure rod deflects the nonwoven from its direction of movement.
- the pressure rod has a circular cross-section (Johannsen, O .; Handbuch der Cottonspinnerei, Volume II, 5th Edition, Bernh. Friedr. Voigt Verlagrind undtechnik Berlin-Hamburg, p. 120 (II), Fig. F15) or a semicircular cross-section (Vouk VSM brochure for ITMA 1991).
- a pressure rod which has a rectangular cross-section, the end wall in contact with the nonwoven fabric being rounded and the end face facing away from the sliver being formed by a flat surface inclined to the longitudinal axis (operating instructions, Line: RSB 851 (4135), SB 851 (4131) of RIETER Spinning Systems from August 1990, p. 24, 4.4.2.4, p. 25, fig. 4, p. 26, fig. 5)
- Pressure bars with a circular cross section are also known.
- they have the disadvantage that deposited fibers form coils on the pressure rod, which can disrupt the nonwoven fabric.
- the deposits of the pressure rod fall onto the nonwoven fabric is favored if the pneumatic suction on the drafting system closes is weak or disturbed.
- the object of the invention is to build up deposits on a pressure rod to reduce significantly.
- the pressure rod is in one arranged defined position, but not movable itself.
- the Pressure rod has a rectangular cross-section, the narrow end faces are rounded. Rounding off the two Each end face is a semicircular rounding.
- the core of the material is ordinary structural steel, the surface of which is Borieren is compensated. This results in a low-friction and wear-resistant surface.
- the pressure rod can also be made of ceramic or wear-resistant steel.
- the cross section according to the invention has the advantage that that there are significantly fewer deposits on the pressure rod.
- the cleaning interval for the pressure rod can be compared to conventional ones Pressure rods can be doubled.
- the material cost for the pressure rod can be lowered.
- FIG. 1 shows schematically a drafting system as it is on lines for the textile industry is common.
- the drafting system is formed by three pairs of rollers. A front pair of rollers 1, 1 ', a middle one Roller pair 2, 2 'and an output roller pair 3, 3'.
- the drafting system is a pressure rod 10 with a known cross section used.
- the drafting system is surrounded by a pneumatic one Suction 8, 8 '. The suction takes place above and below of the drafting system.
- the upper pneumatic suction 8 has 3 suction probes 80, 81, 82.
- the sliver passes through the drafting system starting from the roller pair 1, 1 'and is conveyed as a non-woven in a fleece funnel 4.
- the compression rod 10 is located in the main warpage.
- the pressure rod is known to be a fixed, non-moving rod that the fiber fleece between the clamping points of the main drafting zone redirects.
- the pressure rod is above the nonwoven arranged.
- the bracket is not shown in detail.
- the bracket can for example be attached to the bearing for the roller 2.
- the fiber fleece is deflected by the pressure rod and at the deflection point pressed. Especially when using fiber material with a short stack length, the short fibers are through this Pressure rod additionally guided. This is always required if the nip distance between the pairs of rollers that the main warping area form, is enlarged.
- the pressure rod is designed that it extends over the entire width of the stretching field.
- Deposits occur during operation of the drafting system on the push rod. It is deposits of mineral dust, Short fiber content, dirt and finish. These deposits condense or harden and fall at indefinite times on the nonwoven fabric in the main drafting zone.
- the dropping of the contaminants from the pressure rod onto the nonwoven fabric is favored if, for example, the pneumatic suction is too weak or disturbed. Such a disturbance results result, for example, from an insufficient adjustment of the suction tube 80 above the roller 3. If the suction nozzle 80 too far is placed forward towards roller 3, then the problem occurs on that the fiber flight carried by the roller 2 is not is sucked off sufficiently, but settles on the pressure rod 10.
- FIG. 2 shows the known one in a representation that is not to scale Pressure rod 10.
- Figure 2a shows the side view of the pressure rod 10. In particular on the plane and to the vertical axis Z slightly inclined surface 12, the deposits are deposited.
- a pressure rod 100 used in the same place of the drafting system, which changed one Profile (Fig. 3a).
- the profile was designed that deposits are reduced to a minimum so that their presence no functional impairment of other work organs such as the band funnel 6.
- the Pressure rod 100 has a rectangular shape according to the invention (FIG. 3a) Cross-section, the narrow end faces of which are rounded. A Characteristic is that the rounding of the two end faces is semicircular Rounding off is.
- the pressure rod 100 consists of a low-friction and wear-resistant material. About the use of materials The core of the pressure rod is to make it inexpensive 100 made of ordinary structural steel, the surface of which is borated is paid.
- the pressure rod can also be made of ceramic or wear-resistant steel.
- Figure 4 shows a schematic view of a drafting system according to the invention Pressure rod 100.
- Pressure rod 100 is at narrowest drafting system setting, high delivery speed of approx. 800 m / min. and use of a sliver with high mineral dust and short fiber content achieved that influences the Sliver transport and sliver quality through from the pressure bar falling deposits can be significantly reduced.
- the cleaning interval for a pressure rod can be doubled.
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)
Description
Es sind auch Druckstäbe mit kreisförmigem Querschnitt bekannt. Sie haben jedoch den Nachteil, daß abgelagerte Fasern am Druckstab Wickel bilden, die das Faservlies stören können.
- Figur 1
- schematischer Querschnitt eines Streckwerkes mit bekanntem Druckstab
- Figur 2
- Ansicht des bekannten Druckstabes
- Figur 2a
- Ansicht des bekannten Druckstabes
- Figur 3
- Ansicht eines erfindungsgemäßen Druckstabes
- Figur 3a
- Ansicht eines erfindungsgemäßen Druckstabes
- Figur 4
- schematischer Querschnitt eines Streckwerkes mit erfin-dungsgemäßem Druckstab
Claims (4)
- Druckstab, im Hauptverzugsfeld eines textilen Streckwerkes einer Strecke und oberhalb eines Transportweges von Faservlies angeordnet, der über die Breite des Streckwerkfeldes mit dem Faservlies in Berührung stehend das Faservlies zwischen den beiden Klemmpunkten des Hauptverzugsfeldes auslenkt, wobei der feststehende Druckstab (100) einen rechteckförmigen Querschnitt hat, wobei dessen schmale, Faserband berührende Stirnseite durch eine halbkreisförmige Abrundung gebildet ist, dadurch gekennzeichnet, daß die schmale, gegenüberliegende Stirnseite des Druckstabes (100) durch eine halbkreisförmige Abrundung gebildet ist.
- Druckstab nach Anspruch 1, dadurch gekennzeichnet, daß der Druckstab aus Baustahl besteht, dessen Oberfläche durch Borierung reibungsarm und verschleißfest gemacht ist.
- Druckstab nach Anspruch 1, dadurch gekennzeichnet, daß der Druckstab aus Keramik besteht.
- Druckstab nach Anspruch 1, dadurch gekennzeichnet, daß der Druckstab aus verschleißfestem Material oder Edelstahl besteht.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4242722 | 1992-12-17 | ||
DE4242722A DE4242722A1 (de) | 1992-12-17 | 1992-12-17 | Druckstab |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0602388A1 EP0602388A1 (de) | 1994-06-22 |
EP0602388B1 true EP0602388B1 (de) | 1998-04-01 |
Family
ID=6475613
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP93118239A Expired - Lifetime EP0602388B1 (de) | 1992-12-17 | 1993-11-11 | Druckstab |
Country Status (5)
Country | Link |
---|---|
US (2) | US5689858A (de) |
EP (1) | EP0602388B1 (de) |
JP (1) | JPH06346334A (de) |
CZ (1) | CZ263293A3 (de) |
DE (2) | DE4242722A1 (de) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19548671A1 (de) * | 1995-12-23 | 1997-06-26 | Csm Gmbh | Absaugungsvorrichtung |
DE19652062A1 (de) * | 1996-12-13 | 1998-06-18 | Zinser Textilmaschinen Gmbh | Spinnereimaschinen-Streckwerk |
DE19906139B4 (de) * | 1999-02-13 | 2008-01-10 | TRüTZSCHLER GMBH & CO. KG | Regulierstreckwerk für einen Faserverband, z. B. Baumwolle, Chemiefasern o. dgl., mit mindestens einem Verzugsfeld |
DE50101978D1 (de) | 2000-11-28 | 2004-05-19 | Truetzschler Gmbh & Co Kg | Verfahren und Vorrichtung an einer Spinnereimaschine zum Verziehen eines textilen Faserverbandes, z.B. aus Baumwolle, Chemiefasern u. dgl. |
DE10307415A1 (de) * | 2002-02-20 | 2003-09-18 | Rieter Ingolstadt Spinnerei | Textilmaschine mit einem Streckwerk |
DE10317430B4 (de) * | 2003-04-15 | 2011-05-12 | Rieter Ingolstadt Gmbh | Textilmaschine mit einem Streckwerk |
CN1702208B (zh) * | 2004-05-29 | 2012-01-04 | 利特英格纺织机械制造股份公司 | 压力棒以及带压力棒的纺纱准备机器 |
CN101403147B (zh) * | 2007-11-09 | 2011-06-22 | 潘思敏 | 一种纺纱装置 |
CN101876111B (zh) * | 2010-07-30 | 2012-11-14 | 宁波民丰实业有限公司 | 一种采用组合结构压力棒的碳纤上销组件及其制作方法 |
CN101876110B (zh) * | 2010-07-30 | 2011-12-28 | 宁波民丰实业有限公司 | 尾部机构可接插式全碳纤上销及其制作方法 |
CN102493029B (zh) * | 2011-12-08 | 2014-03-26 | 江苏凯宫机械股份有限公司 | 用于棉纺精梳机的三上五下牵伸装置 |
CN103397413B (zh) * | 2013-08-15 | 2016-01-06 | 武汉纺织大学 | 一种加压分离式压力棒隔距块 |
CN103397414A (zh) * | 2013-08-15 | 2013-11-20 | 武汉纺织大学 | 一种对须条进行集束加压处理的纺纱方法 |
DE102014117241A1 (de) * | 2014-11-25 | 2016-05-25 | Rieter Ingolstadt Gmbh | Verfahren zum optimierten Verstrecken von zumindest einem Faserband in einer Textilmaschine sowie Textilmaschine |
EP4015682A1 (de) * | 2020-12-18 | 2022-06-22 | Saurer Intelligent Technology AG | Arbeitsstelle einer luftspinnmaschine sowie fadenführungselement |
CN113388934B (zh) * | 2021-06-03 | 2022-04-29 | 东台市润生纺机专件有限公司 | 一种双包芯纱用高精度罗拉 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB883823A (en) * | 1957-01-31 | 1961-12-06 | Fairbairn Lawson Combe Barbour | Drafting devices for textile spinning frames |
US3192573A (en) * | 1962-07-12 | 1965-07-06 | Tmm Research Ltd | Textile drafting apparatus |
DE3048501C2 (de) * | 1980-12-22 | 1983-06-30 | Zinser Textilmaschinen Gmbh, 7333 Ebersbach | Kämmstrecke |
GB8415214D0 (en) * | 1984-06-14 | 1984-07-18 | Magnavac Air Systems Ltd | Dust extractor for drawframe |
CN1039632A (zh) * | 1988-07-15 | 1990-02-14 | 里特机械公司 | 用于纺纱机的牵伸装置 |
DE58905669D1 (de) * | 1988-08-30 | 1993-10-28 | Rieter Ag Maschf | Hochverzugsstreckwerk für ein flyerloses Spinnverfahren. |
-
1992
- 1992-12-17 DE DE4242722A patent/DE4242722A1/de not_active Withdrawn
-
1993
- 1993-11-11 EP EP93118239A patent/EP0602388B1/de not_active Expired - Lifetime
- 1993-11-11 DE DE59308343T patent/DE59308343D1/de not_active Expired - Fee Related
- 1993-12-03 CZ CZ932632A patent/CZ263293A3/cs unknown
- 1993-12-17 JP JP5318117A patent/JPH06346334A/ja active Pending
-
1996
- 1996-03-18 US US08/617,262 patent/US5689858A/en not_active Expired - Fee Related
- 1996-04-17 US US08/633,502 patent/US5608948A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE4242722A1 (de) | 1994-06-23 |
US5608948A (en) | 1997-03-11 |
US5689858A (en) | 1997-11-25 |
DE59308343D1 (de) | 1998-05-07 |
CZ263293A3 (en) | 1994-07-13 |
JPH06346334A (ja) | 1994-12-20 |
EP0602388A1 (de) | 1994-06-22 |
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