EP0939151A2 - Appareil de charge pour les cylindres supérieurs des bancs d'étirage - Google Patents

Appareil de charge pour les cylindres supérieurs des bancs d'étirage Download PDF

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Publication number
EP0939151A2
EP0939151A2 EP98123695A EP98123695A EP0939151A2 EP 0939151 A2 EP0939151 A2 EP 0939151A2 EP 98123695 A EP98123695 A EP 98123695A EP 98123695 A EP98123695 A EP 98123695A EP 0939151 A2 EP0939151 A2 EP 0939151A2
Authority
EP
European Patent Office
Prior art keywords
cylinder
loading device
holder
load device
roller
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.)
Withdrawn
Application number
EP98123695A
Other languages
German (de)
English (en)
Other versions
EP0939151A3 (fr
Inventor
Wolfgang Göhler
Armin Brunner
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.)
Rieter Ingolstadt GmbH
Original Assignee
Rieter Ingolstadt Spinnereimaschinenbau 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
Application filed by Rieter Ingolstadt Spinnereimaschinenbau AG filed Critical Rieter Ingolstadt Spinnereimaschinenbau AG
Publication of EP0939151A2 publication Critical patent/EP0939151A2/fr
Publication of EP0939151A3 publication Critical patent/EP0939151A3/fr
Withdrawn legal-status Critical Current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
    • D01H5/46—Loading arrangements
    • D01H5/52—Loading arrangements using fluid pressure
    • D01H5/525—Loading arrangements using fluid pressure for top roller arms

Definitions

  • the present application relates to a loading device for the top rollers of drafting systems according to claim 1.
  • a loading device is known in order to achieve sufficient pressure on the top rollers, the pistons of the loading device have a substantially rectangular shape. Of the minimum distance of the loaded rollers transverse to their axis should thereby be kept as small as possible.
  • the pistons used there need a membrane to seal it against its cylinder wall.
  • the object of the present application is a loading device propose that avoids the disadvantages of the prior art and simple, inexpensive, space-saving and versatile. This Object is achieved with the loading device according to claim 1.
  • the loading device advantageously achieves that the impression cylinder can be manufactured simply and inexpensively, e.g. by means of injection molding, and that it is easily arranged on the holder can be.
  • the cylinder is in the axial direction the rollers of the drafting system are positioned and at the same time a Guidance provided when adjusting the cylinders.
  • About the The contact surface can be the forces that are exerted on the drafting system are supported in a simple manner without the fixing means for the Attaching the cylinder can be loaded with additional forces. Thereby the fastening of the cylinder can be made quick and easy become. This makes it easier to adjust the cylinders. Prohibited Deformations caused by the application of forces can be caused by stop surfaces just be prevented.
  • the cylinder is at least partially made of plastic produce, advantageously as an injection molded part.
  • the cylinder has a holding device for the receptacle the top roller. This is advantageous as a receptacle for a holding plate educated.
  • the cylinder has a holder that holds a cleaning lip for the top roller forms.
  • a shutdown device for the drafting system is arranged.
  • the switch-off device is in front Pollution protected.
  • the shutdown device has advantageous a switch for interrupting an electrical current.
  • the shutdown device has a contact pin with which it electrical contact with a conductor rail of the textile machine produces, this contact at different points on a busbar can take place and thus a sliding connection is established.
  • the busbar is advantageously designed as a rod, since it has several Load devices can be assigned simultaneously.
  • two holders are provided for the cylinder, so that this can be arranged between the holders.
  • the cylinder has several guide surfaces, which enables him to work with several holders at the same time.
  • the cylinder has one or more guide surfaces that are conveniently substantially vertical are arranged to one or more stop surfaces.
  • the stop surface on the top roller adjacent area of the cylinder arranged making the holder special can be easily designed and the cylinder simply in the right place Position can be adjusted to the top roller assigned to it.
  • the stop surface the side of the cylinder facing away from the top roller, whereby the support of the forces on the holder can be done particularly easily.
  • fasteners that have a multi-part cylinder hold together, not burdened by the forces exerted by the piston the drafting system can be exercised.
  • the holder advantageously has one Stop on which the stop surface of the cylinder can be supported.
  • this is under pressure standing fluid compressed air, since this is easier to handle than, for example Hydraulic oil is.
  • Compressed air with an overpressure of less is advantageous than 7 bar because this pressure does not require any special measures and is available more often than compressed air with high pressure.
  • the piston of the cylinder of the loading device a circular cross section as this is essential to its manufacture simplified.
  • the diameter of the piston is smaller than the diameter of the top rollers, which makes them lighter can be ensured that the center distances with several drafting rollers can be kept small.
  • FIG 1 shows an example of the loading device according to the invention used on a loading arm for the top rollers of the drafting system a route on average.
  • the loading arm 55 has two holders 4 (compare Figure 2) of which in the sectional view of Figure 1 only one can be represented.
  • the drafting system has three top rollers 5 which are on associated bottom rollers 51 rest and stored in the punches 50 are.
  • the top rollers of the drafting systems are lines supported at both ends by a bearing 52 and by a load loaded and pressed against the lower roller.
  • the burden is low 55 equipped with two arms, one of which is the load device for one side carries the top rollers and the other the corresponding Load devices for the other ends of the top rollers.
  • Each of these parts of the loading arm is equipped with two holders 4, between which the loading devices 1 are arranged (compare Figure 2).
  • the cut in Figure 1 is made so that it through the loading devices 1 one side of the drafting system is guided.
  • the spacing of the top rollers from each other be designed to be adjustable along a route, depending on the route to be stretched Fiber material different distances are required.
  • the punches in the line moved transversely to the axis of the top and bottom roller.
  • the loading devices of the corresponding top roller to be moved.
  • the load devices according to the invention slidably on the holder 4 of the Load arm 55 arranged. Only the output roller 57 of the The drafting unit does not need to be moved since the sliver is here leaves the drafting system. On the lower roller 51 of the pair of output rollers is still a deflecting roller 58 which the sliver after Leaving the drafting system redirected.
  • the load devices according to the invention 1 are of the same design for simplicity.
  • the pressing force on the top rollers is about the pressure of the print medium controlled, the load devices 1 via pressure lines 22nd is fed.
  • the loading device is particularly advantageous in the exemplary embodiment the output roller 57 and that of the deflection roller with the same pressure acted upon.
  • Realizing forces in the present example is the piston area of the Loading device 1 for the deflecting roller less, so that a smaller Force is exerted on the deflection roller.
  • the a sleeve 203 is used for all top rollers, which reduces the inner diameter and thus a smaller one Piston is used, which exerts a lower force accordingly.
  • This is of course also advantageous for the other load devices the top rollers in one machine conceivable, so that with a single Print media pressure on the various top rollers different pressing forces can be realized.
  • the load arm 55 is rotatably supported about a pivot point 550, so that the loading arm can be opened, making the drafting system accessible becomes.
  • a fastening hook 56 holds the Low load tight, so that the force is applied to the top rollers can be.
  • FIG. 2 shows a section through a loading device according to the invention 1, perpendicular to the plane of representation of Figure 1.
  • the section is centered passed through top roller and loading device.
  • the load device 1 consists of a cylinder 2 in which a piston 3 is arranged. This is subjected to a force via a pressure medium in the cylinder space 21, which he over the piston rod 31 on the bearing 52 of the top roller 5th transmits.
  • the top roller has 5 also in a known manner, a bearing, which is also a load device is charged.
  • the cylinder 2 is designed in two parts, the upper part essentially forms the cylinder space 21 and the lower part, the guide 23 for the piston rod 31.
  • the piston 3 is opposite sealed the inner wall of the cylinder 2 via a seal 32 which particularly advantageously, as shown in Figure 2, formed as a lip seal is.
  • the inner wall of the cylinder 2 is in the area of the cylinder space 21 greased, so that a slight sliding of the seal on the inner wall of the Cylinder is enabled.
  • Piston rod 31 and piston 3 are by means of a Press connection connected together.
  • the upper one, facing away from the upper roller 5 Part of the cylinder 2 is over with the lower part of the cylinder 2 Fasteners 25 connected (see Figure 3).
  • the loading device 1 is attached to the loading arm 55 by clamping on the left and right holder 2.
  • the cylinder 2 Stop surfaces 200 with which it is advantageous on both holders 4 of the Load arm 55 strikes while he is using fixing means 20 on the opposite side work with the cylinder against the Stop surface 200 is pulled, whereby a clamping takes place.
  • the fixing means 20 engage in threaded bushings 250 which are arranged in cylinder 2.
  • the threaded bushings 250 at the Injection molding of the plastic part. This makes it a safe one Attachment possible.
  • the piston 3 is a connector on the cylinder 2 220 provided for the connection of a pressure line.
  • a holding device 26 is also arranged, which Top roller 5 takes.
  • the holding device 26 is made of spring steel formed sheet metal, in which the bearing journal in an elongated hole 520 of the upper roller 5 engages, whereby this when pivoting the Loading arm 55 together with the loading device 1 from the Top roller is lifted in a known manner. It is particularly advantageous also the formation of a holder 27 on the cylinder, for receiving a Cleaning lip 270 for cleaning the top roller. The cleaning lip 270 can also then pivoted away when the load device is pivoted away become.
  • the holder 27 has an elongated hole in which a pin of the cleaning lip 270 is performed.
  • FIG. 3 shows schematically a section through an inventive Loading device 1, the section being transverse to the axis of the top roller 5 is placed in the plane in which the fastening elements 25th are located.
  • the mounting plate 40 On the holder 4 is the mounting plate 40, which with the here Fixing means 20, not shown (see FIG. 2), against the cylinder 2 is pulled.
  • the fastening elements 25 designed as screws, that connect the lower part with the upper part of the cylinder, sit in Threaded bushings 250, which are designed as plastic injection molded parts Cylinders are molded with.
  • the cylinder lies over the stop surfaces 200 on the holder 4 on its side facing the top rollers.
  • the one on the Top roller pressure exerted by the piston is thereby supported on the holder 4.
  • the fixing means 20 To move the cylinder, the fixing means 20 (see Figure 2) solved, whereby the mounting plate 40 together with the Cylinder 2 moved on its guide surface along the holders 4 can be.
  • FIG. 4 shows a loading device designed according to the invention, at of the two parts of the cylinder 2 advantageously simply by a clip connection 25 are connected.
  • This is advantageously possible because because the cylinder 2 with its stop surface 200 on the side of the Holder 4 supports, which faces away from the top roller 5.
  • Holder 4 a stop 400 so that the piston 3 on the bearing 52nd force exerted over the part of the cylinder 2 that defines the cylinder space 21 contains, supported directly on the holder 4.
  • the connection between the Part of the cylinder 2 containing the cylinder space 21 and the guide 23 for the part containing the piston rod 31 need not absorb any forces, as in the embodiment of Figure 2 and Figure 3 by the Screws 25 is taken over.
  • the cylinder 2 is like that of Figure 2 against the mounting plate 40 and the fixing means 20 on the holder 4 Moved secured.
  • the fixing means 20 also do not take over here Forces caused by the support of the piston on the bearing 52.
  • the area of the holder 27 is between the holder 4 and the cylinder 2 sufficient distance 401 is provided so that the clip connection 25 does not is charged.
  • the cylinder 2 is displaceable with its guide surface 201 on the holder 4, so that the load device when adjusting the center distances can be moved on the holder 4. Simultaneously takes over the guide surface in the axial direction of the top roller 5 the positioning of the cylinder 2 in relation to the holder 4 and thus also to the top roller 5.
  • the mounting plate 40 has an opening on its top, through which a connector 222 is arranged on the cylinder 2 to to supply the cylinder chamber 21 with a pressure medium.
  • the switch-off device 7 is used to control the textile machine or To provide signals for their control.
  • the loading device 1 When using the loading device 1 on a stretch it serves the position of the piston rod 31 recognize, with the help of this signal to stop the drafting system and the Lift load on the top rollers 5 of the drafting system in order to relieve.
  • so-called coils form on the top rollers, i.e. that fibers wrap around the top roller 5. This leads to a critical one Operating state, because this, for example, the bearings of top and Bottom rollers are loaded enormously and because the covers of the top rollers Can be damaged as the wraps are extremely tight around the top rollers be wrapped around. These wraps can sometimes be very difficult be solved again.
  • the shutdown device thus generates a signal that the drafting system stops, so that no further fibers enter the drafting system get in and in addition the load on the top rollers is removed, so that the wrap does not solidify.
  • the relief of the top rollers is special simply possible because by venting the cylinder chamber 21 the pressure can be removed from the top roller 5.
  • the shutdown device 7 consists essentially of a switch 71, which can assume two switching positions. In one he is due to one Contact plate 70 on, in the other position it is on cylinder 2 or is located between contact plate 70 and cylinder 2.
  • Switch 71 is formed as an electrically conductive disc, which by means of a sliding seat is slidably clamped on the piston rod 31. With movements of the Piston rod 31, the switch 71 moves along the piston rod. If the loading device 1 without pressure in the cylinder space 21 on the Mounted on bearing 52, the piston rod 31 pushes in the direction away from Bearing 52 with the switch 71 abutting the contact plate 70 while the piston rod slides through it.
  • the cylinder chamber is pressurized, moves the piston rod 31 in the direction of the bearing 52 of the top roller 5 and takes switch 71 with this movement.
  • the switch 71 is located on cylinder 2.
  • the cylinder 2 is made of a non-conductive plastic, so that no electrical connection between the bearing 52 and the Busbar 73 exists.
  • the contact plate 70 has no electrical connection to the piston rod 31 but one to the contact pin 72. This in turn is electrically conductively connected to the busbar 73.
  • the contact pin 72 is associated with a spring which presses it onto the busbar 73. It is thereby ensured that the loading device 1 on the holder 4th can be moved without making electrical contact again must become.
  • the busbar 73 is electrically insulated in the cylinder 2 stored because the cylinder is made of a plastic that is not electrically conductive is, is shaped.
  • Figure 1 shows the busbar 73 in its position on the holder 4. It is formed in two parts and electrically insulated on the holder 4 by means of insulators 41 attached. In the area of the loading device assigned to the output roller 57 makes the busbar 73 in the insulator 41 arranged there a kink. The loading device of output roller 57 and deflection roller 58 are not moved so that the kink does not interfere.
  • the Busbar 73 is by means of an electrical connection, not shown is connected to the controller (not shown) of the textile machine.
  • the cylinder Around the top rollers as close as possible to each other to be able to use, the cylinder has an extension L transverse to Axis of the top roller, which corresponds to the diameter of the top roller.
  • a Measurement up to 10 mm is still cheap. This allows multiple cylinders be arranged in a plane along the load arm 55.
  • the use of Compressed air as a fluid for loading the piston of the loading device is particularly cheap compared to liquid media in particular.
  • the application area of the loading device is particularly large, if this is designed so that with compressed air of less than 7 bar can be worked. This is practically everywhere in the production facilities available to the textile industry.
  • the use of a piston 3 with a circular area and a diameter smaller than the diameter of the Top roller also enables compressed air of less than 7 bar overpressure the achievement of sufficient force with favorable dimensions at the same time the loading device. Values between 75% appear and 85% of the diameter of the top roller is particularly favorable.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
EP98123695A 1998-02-25 1998-12-12 Appareil de charge pour les cylindres supérieurs des bancs d'étirage Withdrawn EP0939151A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19807801 1998-02-25
DE19807801A DE19807801A1 (de) 1998-02-25 1998-02-25 Belastungseinrichtung für die Oberwalzen von Streckwerken

Publications (2)

Publication Number Publication Date
EP0939151A2 true EP0939151A2 (fr) 1999-09-01
EP0939151A3 EP0939151A3 (fr) 2000-08-16

Family

ID=7858791

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98123695A Withdrawn EP0939151A3 (fr) 1998-02-25 1998-12-12 Appareil de charge pour les cylindres supérieurs des bancs d'étirage

Country Status (3)

Country Link
US (1) US6134752A (fr)
EP (1) EP0939151A3 (fr)
DE (1) DE19807801A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10255640B3 (de) * 2002-11-28 2004-01-22 Rexroth Mecman Gmbh Druckmittelzylinder, insbesondere für ein Streckwerk einer Textilmaschine
DE10314428A1 (de) * 2003-03-31 2004-10-28 Rexroth Mecman Gmbh Doppeldruckmittelzylinderanordnung sowie Belastungseinrichtung einer Textilmaschine mit einer solchen Doppeldruckmittelzylinderanordnung
EP1870500A2 (fr) 2006-06-22 2007-12-26 Rieter Ingolstadt Spinnereimaschinenbau AG Banc d'étirage d'une machine de prétraitement de filature
US7603750B2 (en) 2005-04-29 2009-10-20 Truetzschler Gmbh & Co. Kg Apparatus on a drafting system of a spinning machine, especially a draw frame, carding machine, combing machine or the like, for weighting the drafting system rollers
US7610660B2 (en) 2006-10-11 2009-11-03 Truetzschler Gmbh & Co. Kg Apparatus on a drafting system of a spinning room machine, for weighting drafting system rollers

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH696467A5 (de) * 2002-07-29 2007-06-29 Truetzschler Gmbh & Co Kg Vorrichtung zur Belastung der Oberwalzen eines Streckwerks für Textilfaserbänder.
DE10331759B4 (de) * 2003-07-14 2012-03-29 Trützschler GmbH & Co Kommanditgesellschaft Vorrichtung an einer Strecke für Textilfaserbänder mit Be- und Entlastung der Streckwerksoberwalzen
DE10347192B4 (de) 2003-10-10 2012-02-09 TRüTZSCHLER GMBH & CO. KG Vorrichtung an einer Strecke für Textilfaserbänder mit hintereinander angeordneten Walzenpaaren und einer Putzeinrichtung für jede Oberwalze
DE10355853A1 (de) * 2003-11-26 2005-06-23 Maschinenfabrik Rieter Ag Spinnmaschine
CN104862832A (zh) * 2015-06-09 2015-08-26 安徽华茂纺织股份有限公司 带螺纹状旋转轮的细纱后牵伸区压力棒
DE102019131861A1 (de) * 2019-11-25 2021-05-27 Maschinenfabrik Rieter Ag Streckwerk und Textilmaschine
DE102021120662A1 (de) 2021-08-09 2023-02-09 Trützschler GmbH & Co Kommanditgesellschaft Streckwerk einer Spinnereimaschine sowie Verfahren zum vorbeugenden Erkennen eines Maschinenstillstands in einem solchen Streckwerk
CN119403962A (zh) 2022-06-20 2025-02-07 斯温索股份公司 用于顶部配重臂的弹簧单元

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Publication number Priority date Publication date Assignee Title
DE1038465B (de) * 1951-10-26 1958-09-04 Ame Interemin Soc Belastungsvorrichtung fuer die Druckwalzen von Strecken, insbesondere Nadelstabstrecken
US3310847A (en) * 1964-06-09 1967-03-28 Maremont Corp Helical draft rolls
US3409946A (en) * 1966-07-05 1968-11-12 Ideal Ind Apparatus for drafting textile fibrous strands
DE2941612A1 (de) * 1979-10-13 1981-04-23 Zinser Textilmaschinen Gmbh, 7333 Ebersbach Strecke
JPS5915520A (ja) * 1982-07-15 1984-01-26 Toyoda Autom Loom Works Ltd ドラフト機構のロ−ラ加圧装置
JPS62257426A (ja) * 1986-04-25 1987-11-10 Toray Ind Inc 紡機のドラフトロ−ラ繊維巻付きによる停止方法および紡機
DE3814340C2 (de) * 1988-04-28 1997-09-18 Truetzschler Gmbh & Co Kg Belastungseinrichtung für in Streckwerke eingebaute Oberwalzen
IT1244444B (it) * 1990-09-13 1994-07-15 Linimpianti Srl Dispositivo pressore per una macchina di stiro di filati
DE19548840B4 (de) * 1995-12-27 2008-04-03 Rieter Ingolstadt Spinnereimaschinenbau Ag Strecke zum Doublieren und Verstrecken von Faserbändern
DE19704815A1 (de) * 1997-02-08 1998-08-13 Truetzschler Gmbh & Co Kg Vorrichtung an einer Strecke für Textilfaserbänder mit Belastung der Oberwalzen des Streckwerks

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10255640B3 (de) * 2002-11-28 2004-01-22 Rexroth Mecman Gmbh Druckmittelzylinder, insbesondere für ein Streckwerk einer Textilmaschine
EP1428914A3 (fr) * 2002-11-28 2005-03-30 Rexroth Mecman GmbH Vérin à pression fluidique, particulierement pour un arrangement d'etirage dans une machine textile
US7174606B2 (en) 2002-11-28 2007-02-13 Rexroth Mecman Gmbh Pressure cylinder for a drafting arrangement of a textile machine
DE10314428A1 (de) * 2003-03-31 2004-10-28 Rexroth Mecman Gmbh Doppeldruckmittelzylinderanordnung sowie Belastungseinrichtung einer Textilmaschine mit einer solchen Doppeldruckmittelzylinderanordnung
EP1464741A3 (fr) * 2003-03-31 2005-08-10 Rexroth Mecman GmbH Systeme à cylindre de pression à double pression, et dispositif de contrôle des fibres dans une machine textile avec un tel système à cylindre de pression à double pression
DE10314428B4 (de) * 2003-03-31 2007-03-29 Bosch Rexroth Pneumatics Gmbh Doppeldruckmittelzylinderanordnung sowie Belastungseinrichtung einer Textilmaschine mit einer solchen Doppeldruckmittelzylinderanordnung
US7603750B2 (en) 2005-04-29 2009-10-20 Truetzschler Gmbh & Co. Kg Apparatus on a drafting system of a spinning machine, especially a draw frame, carding machine, combing machine or the like, for weighting the drafting system rollers
EP1870500A2 (fr) 2006-06-22 2007-12-26 Rieter Ingolstadt Spinnereimaschinenbau AG Banc d'étirage d'une machine de prétraitement de filature
EP1870500A3 (fr) * 2006-06-22 2009-12-23 Rieter Ingolstadt GmbH Banc d'étirage d'une machine de prétraitement de filature
US7610660B2 (en) 2006-10-11 2009-11-03 Truetzschler Gmbh & Co. Kg Apparatus on a drafting system of a spinning room machine, for weighting drafting system rollers

Also Published As

Publication number Publication date
EP0939151A3 (fr) 2000-08-16
DE19807801A1 (de) 1999-08-26
US6134752A (en) 2000-10-24

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