EP1249525B1 - Garniturträger einer Auflösewalze für eine Offenend-Spinnmaschine - Google Patents

Garniturträger einer Auflösewalze für eine Offenend-Spinnmaschine Download PDF

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Publication number
EP1249525B1
EP1249525B1 EP02012599A EP02012599A EP1249525B1 EP 1249525 B1 EP1249525 B1 EP 1249525B1 EP 02012599 A EP02012599 A EP 02012599A EP 02012599 A EP02012599 A EP 02012599A EP 1249525 B1 EP1249525 B1 EP 1249525B1
Authority
EP
European Patent Office
Prior art keywords
clothing
opening roller
wire
clothing wire
carding
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
EP02012599A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1249525A3 (de
EP1249525A2 (de
Inventor
Eberhard Hofmann
Klaus Schoberth
Christian Göbel
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 Spinnereimaschinenbau AG
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7821858&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1249525(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Rieter Ingolstadt Spinnereimaschinenbau AG filed Critical Rieter Ingolstadt Spinnereimaschinenbau AG
Publication of EP1249525A2 publication Critical patent/EP1249525A2/de
Publication of EP1249525A3 publication Critical patent/EP1249525A3/de
Application granted granted Critical
Publication of EP1249525B1 publication Critical patent/EP1249525B1/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
    • D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
    • D01H4/30—Arrangements for separating slivers into fibres; Orienting or straightening fibres, e.g. using guide-rolls
    • D01H4/32—Arrangements for separating slivers into fibres; Orienting or straightening fibres, e.g. using guide-rolls using opening rollers

Definitions

  • the present invention relates to a clothing carrier of an opening roller for an open-end spinning machine according to the preamble of claim 1.
  • opening rollers for open-end spinning machines are known from the prior art.
  • DE-A 24 33 769 an opening roller is known in which a helical preformed clothing wire is applied to the outer surface of the opening roller and clamped there. This should make it possible to use a harder clothing wire.
  • US-P 5,085,047 an opening roller is known in which the clothing carrier is made of die-cast or, for example, also from an extruded profile.
  • the clothing carrier carries on its outer circumference a clothing for dissolving fiber tapes in individual fibers. This set is formed by a set wire attached in helical turns.
  • the clothing wire is deformed and wound onto the clothing carrier under tension. In order to have sufficient stability for receiving the tensioned wire, ribs are attached to the clothing carrier, which are supported radially on a hub.
  • the clothing carrier is ring-shaped and forms together with a base body which is fastened on the axis of the opening roller bearing and which forms the opening roller with a cover.
  • the clothing is also designed in the form of a spirally drawn clothing wire.
  • the prior art clothing carriers consist essentially of alloys of light metals that are easy to manufacture and process.
  • ring-shaped clothing carriers made of thin-walled steel rings are also known.
  • the clothing wire consists in a known manner of a hardened steel wire, so that it usually meets the wear requirements, for example when processing cotton. If a higher wear resistance is required, it is known to coat the entire opening roller or the clothing carrier including the clothing with a wear protection layer. For example, this is done by introducing the opening roller into a coating bath, in which hard material grains, e.g. Diamond grains, deposit on the opening roller and thereby significantly increase their wear resistance.
  • hard material grains e.g. Diamond grains
  • Dissolving rollers of the prior art which are to be coated in order to obtain sufficient wear resistance, place special demands on their structural design, which lead to more costs and more complex constructions.
  • dissolving rollers made of die-cast have the disadvantage that their surface is porous and when coating in coating baths, residues of the coating bath remain in the pores, so that the coating bath is contaminated by the previous bath.
  • Another disadvantage is that in addition to the clothing, other parts of the opening roller are coated, although this is not necessary or is even undesirable. This disadvantage also results in a higher consumption of coating material, which increases the costs unnecessarily.
  • the use of a plastic clothing rack is only possible to a limited extent or not at all.
  • the object of the present invention is therefore to design an opening roller in such a way that the disadvantages of the prior art are avoided and a simple, inexpensive design of the opening roller is achieved, at the same time achieving high wear resistance of the opening roller without providing the entire opening roller with wear protection , Another object is to demonstrate a method for producing a clothing wire for such an opening roller.
  • the clothing wire according to the invention Due to the preforming of the clothing wire according to the invention, it can advantageously be fully hardened, ie not only the teeth, as is customary with the previous clothing wires, but also the tooth base. When garnishing the opening roller or the clothing carrier, this no longer has to be deformed, so that a clothing wire with great hardness and brittleness can also be used. This has the great advantage that the wear of the clothing that has occurred to date in the area of the tooth base can be greatly reduced. The clothing wire is deformed in such a way that the clothing wire is bent in the plane in which the clothing teeth lie. The fact that the opening roller according to the invention with a.
  • Garnishing wire is garnished, which has already been coated before the garnish, it is achieved that the opening roller itself no longer has to be coated.
  • deformations of the clothing carrier cannot occur even if it is produced inexpensively, for example from plastic or from a less rigid material or with very thin walls.
  • the opening roller designed according to the invention also has the advantage that the clothing wire does not have to be deformed practically anymore for garnishing the opening roller, so that it can also consist of a very hard and brittle steel and also a brittle coating can be used, or none The coating thickness must be taken into account. If a clothing wire that has already been coated according to the invention, ie provided with a wear protection layer, is used for the opening roller, no consideration needs to be given to whether the other parts of the opening roller are incompatible with the coating method or the coating media.
  • the components of the opening roller which are often made of die-cast aluminum, are known to have fine pores, which can lead to contamination, for example, in chemical coating baths. These problems do not occur with an opening roller designed according to the invention, so that the known die-cast parts can also be used again with the opening roller designed according to the invention.
  • the clothing wire When the clothing wire is applied to the opening roller, the area of the tooth feet is practically no longer deformed. It is particularly advantageous for the clothing wire to be preformed such that it already has an inside diameter which is equal to or larger than the diameter of its cylindrical receptacle on the clothing carrier. This ensures that the clothing wire is slightly open the clothing rack can be pulled up.
  • the individual turns of the clothing wire advantageously have the same diameter.
  • the clothing wire is deformed to a dimension by which the inside diameter of a spiral turn of the clothing wire is smaller than the diameter of the cylindrical receptacle on the clothing carrier. It is thereby achieved that the garnishing of the opening roller is particularly simple, since in particular if a groove is used on the clothing carrier for inserting the clothing wire, this can be easily inserted. Due to the smaller diameter, the clothing wire strives to lie in the groove of the clothing carrier without external pressure.
  • a value of less than 1.4 has been found to be a particularly favorable ratio of the inside diameter of a turn of the preformed clothing wire to the diameter of its cylindrical receptacle. This value ensures that the clothing wire can be installed practically in the usual way, since it can be easily pulled onto the opening roller and, on the other hand, only a slight deformation is required during this installation and insertion into the groove of the clothing holder or onto the surface of the clothing holder ,
  • a particularly favorable value of the specified ratio is between 1.2 and 0.8, with a value between 1.1 and 0.9 having proven ideal.
  • the clothing wire is not only coated before it is drawn onto the clothing carrier, but is also heat-treated. This enables the coating to be carried out completely, so that when the clothing wire has been drawn onto the opening roller, this does not require any further processing steps needs more. It is advantageous if the clothing wire is guided axially when it is being pulled onto the opening roller, because this means that there is no need for grooves to accommodate the clothing. It is particularly advantageous if the clothing wire has a foot that has an axial dimension that is greater than the axial dimension of the teeth, so that when the clothing wire is laid foot to foot, the clothing is perfectly seated without the use of grooves can be.
  • the advantageous design of the opening roller with a groove for receiving the clothing wire ensures that a simple clothing wire can be used and the axial spacing of the individual turns of the clothing wire is still uniform.
  • the axial width of this groove advantageously has a value which is greater than the axial extension of the clothing wire, but at the same time is smaller than the axial extension of the clothing wire plus 0.2 mm. This creates enough space to ensure that the coating on the clothing wire does not flake off when the wire is inserted into the groove.
  • the clothing carrier is annular and has a wall thickness between 1 mm and 5 mm.
  • a clothing wire that is chemically coated with nickel is particularly favorable, with hard material grains being embedded in the nickel layer.
  • the opening roller designed in this way also has good properties when opening the fibers.
  • the method according to the invention for producing a clothing wire ensures that after coating, the clothing wire no longer has to be deformed in such a way that it is damaged, which damages the coating. Wear-resistant coatings would flake off or be damaged if wire were only formed into a spiral shape after coating the clothing. Because of the axial distance from each other arranged turns of the clothing wire during coating is achieved that the coating is advantageously carried out evenly. If the clothing wire is available as a free spiral during coating, the clothing wire can advantageously be coated evenly from all sides. Further advantageous refinements of the invention are described in the remaining subclaims.
  • FIG. 1 shows a top view, partly in section, of an opening roller according to the invention.
  • the opening roller 1 consists of a base body 11 which receives a clothing carrier 12.
  • the base body 11 is mounted on a shaft 13 by means of an interference fit, via which the opening roller 1 is mounted in the bearing 15.
  • the shaft 13 and thus also the opening roller 1 are driven by means of a belt, not shown, which cooperates with the whorl 14 of the shaft 13.
  • Base body 11 and clothing carrier 12 are connected to one another by means of screws 16.
  • the clothing carrier 12 has an opening 17 which is closed with a cover 18.
  • the clothing carrier 12 carries the clothing 2 on the circumference, which is provided with teeth 23. These solve in open-end spinning devices in a known manner a sliver presented to individual fibers.
  • the opening roller 1, here in FIG. 1 the clothing support 12 has a groove 21 which is formed in the cylindrical outer surface 22 of the clothing support 12. The groove 21 is guided in a spiral around the lateral surface 22 and extends from the area of the rim 121 of the clothing carrier 12 to the area of the rim 111 of the base body 11.
  • the clothing wire 3 is spirally preformed and coated according to the invention and inserted in this preformed state in the groove 21 of the opening roller 1.
  • the clothing wire 3 has teeth 23 which are designed to be particularly wear-resistant due to the design of the opening roller according to the invention.
  • the bottom of the groove 21 forms the receptacle 210 for the clothing wire 3 on which it rests.
  • the latter is advantageously no longer jammed or caulked, as is known in the opening rollers of the prior art, but rather by the configuration of the diameter of the receptacle 210 in connection with the configuration of the inside diameter of the turns of the preformed clothing wire, it is achieved that the clothing wire remains securely in it after insertion into the groove 21 without the need for further fastening measures.
  • the inner diameter of the preformed clothing wire is smaller than that of its receptacle 210.
  • the axial extent of the groove ie the width of the groove 21, does not need to have a clamping effect in such a case (ratio of the inner diameter of the prefabricated clothing wire to the holding diameter).
  • the prefabricated clothing wire has a larger inner diameter than the diameter of the receptacle 210, it can be advantageous if the clothing wire including its coating is wider than the width of the groove 21. This enables the clothing wire to be securely attached to the opening roller be without a Caulking the ends of the clothing wire on the opening roller, as is the case in the prior art.
  • a secure hold of the clothing wire on the opening roller is achieved both by the special design of the inside diameter of the clothing wire and in addition the clothing wire including the coating is wider than the width of the groove 21. Care must be taken to ensure that during assembly of the clothing wire 3 on the opening roller of the clothing wire does not have to be widened to such an extent that the coating is damaged or destroyed by excessive deformation.
  • the width of the clothing wire in relation to the width of the groove 21 should be selected so that despite the desired clamping action, damage to the clothing wire or its coating is avoided when it is inserted into the groove 21.
  • the different types of coating have different sensitivities.
  • a coating that was produced by nitriding is less sensitive than a coating using chemically applied nickel with embedded hard material grains, for example diamond grains or silicon carbide grains.
  • nickel with embedded hard material grains for example diamond grains or silicon carbide grains.
  • Figure 2 shows a sectional view of an opening roller, which is solid and one side of which is closed with a cover 4. Due to its larger diameter than the opening roller 1 itself, the cover 4 contains the board 41. The other board 42 is designed in one piece with the opening roller 1. In the center, the opening roller has a bore 43, with which it is fastened to a shaft in a manner similar to the opening roller of FIG. The cover 4 is attached to the opening roller 1 by means of screws 16 screwed. To receive the clothing wire 2, the outer surface 22 of the opening roller 1 simultaneously forms the housing 210 for the clothing wire 3. This is therefore not accommodated in a groove as in FIG. 1, but lies directly on the outer surface 22 of the opening roller 1.
  • the opening roller can be designed in such a way that in the area in the middle between the shelves the clothing wire is laid at a smaller distance from its neighboring turn than in the area of shelves 41 and 42, where it is known to feed a wire Sliver less fibers to be combed out of the opening roller.
  • the garnishing of the opening roller which is shown in the axial direction at a smaller distance from the neighboring turn, is particularly advantageous as such and is not tied to the fact that the jacket surface 22, without having a groove 21, forms the receptacle 210 for the clothing wire 3. It can only be carried out in a particularly simple manner in the case of an opening roller according to FIG. 2.
  • the sufficient tension of the clothing wire on the opening roller ensures a secure hold of the clothing wire, even with a receptacle 210 without a groove, and at the same time gives the possibility of one and the same Design to generate different distances of the turns from each other in a simple manner only by different laying measures of the clothing wire on the opening roller. So that the end face 20 of the clothing wire 3, which forms the beginning of the clothing wire in the direction of rotation, does not produce any disturbances in the dissolution of the fiber sliver, this can be lowered in a slot 211 of the receptacle 210 in the direction of the axis of rotation of the opening roller.
  • Another possibility is to bring the end face 20 of the clothing wire into the area of the board facing it or to axially sink it into the board.
  • the trailing end of the clothing wire can simply end on the outer surface 22 of the opening roller 1, since this does not form a defect.
  • the clothing wire can be pushed onto the receptacle 210 of the opening roller 1 particularly advantageously without having to be expanded unnecessarily during assembly.
  • This makes it possible to design the clothing wire with a particularly small inner diameter in relation to the diameter of the receptacle 210 without the coating being damaged during assembly.
  • a ratio of diameters e.g. with the value 1.1 to 0.9, a sure guarantee that the clothing wire has a firm hold on the opening roller and no longer shifts during its operation.
  • an opening roller is used, e.g. from the solid and has two fixed shelves, it must be taken into account during assembly that the clothing wire must be lifted over the outside diameter of the shelf, and this requires a larger expansion. This must be in accordance with the deformability of the coating.
  • the opening roller 1 has a slot 211 on its lateral surface 22, into which, as described, the beginning of the clothing wire 3 is lowered.
  • the beginning of the clothing wire can be deformed so that the clothing wire 3 also dips deep enough into the slot 211 with its end face 20. Damage to the coating that occurs in this case is not so important, since the clothing wire does not come into contact with the fibers in this area.
  • a sealant or an adhesive can be introduced, for example. It is particularly expedient if the beginning of the clothing wire is both lowered into a groove in the opening roller and also as close as possible to the board facing it, here the board 42 in FIG. 2.
  • FIG. 3 schematically shows an illustration of a clothing wire 3 produced by the method according to the invention. Only 4 turns are shown by way of example, an opening roller of the prior art containing approximately 8 to 13 turns, depending on the width of the clothing and the outer surface of the opening roller.
  • the inner diameter D of the pre-wound clothing wire forms the measure of the elastic deformation of the clothing wire that is still required for assembly.
  • the pre-shaped and coated clothing wire 3 according to the invention from FIG. 3 can be manufactured with a much higher number of turns than is required to decorate a single opening roller.
  • the number of turns is only limited by the manageability of the prefabricated clothing wire.
  • Figure 3 shows a clothing wire 3, which was both prefabricated radially, ie spirally prefabricated and was stretched in the axial direction, so that the clothing wire is practically adapted in the axial direction of the groove 21 of the opening roller (see Figure 1).
  • this is not necessary in every case, since the clothing wire 3 bends in the axial direction Direction when garnishing the opening roller means only a very low degree of deformation, which has practically no influence on the coating.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Rolls And Other Rotary Bodies (AREA)
EP02012599A 1997-02-28 1998-01-28 Garniturträger einer Auflösewalze für eine Offenend-Spinnmaschine Expired - Lifetime EP1249525B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19708190A DE19708190A1 (de) 1997-02-28 1997-02-28 Auslösewalze für eine Offenend-Spinnmaschine
DE19708190 1997-02-28
EP98101428A EP0861930B2 (de) 1997-02-28 1998-01-28 Auflösewalze für eine Offenend-Spinnmaschine

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP98101428.5 Division 1998-01-28
EP98101428A Division EP0861930B2 (de) 1997-02-28 1998-01-28 Auflösewalze für eine Offenend-Spinnmaschine

Publications (3)

Publication Number Publication Date
EP1249525A2 EP1249525A2 (de) 2002-10-16
EP1249525A3 EP1249525A3 (de) 2002-11-27
EP1249525B1 true EP1249525B1 (de) 2004-03-31

Family

ID=7821858

Family Applications (2)

Application Number Title Priority Date Filing Date
EP02012599A Expired - Lifetime EP1249525B1 (de) 1997-02-28 1998-01-28 Garniturträger einer Auflösewalze für eine Offenend-Spinnmaschine
EP98101428A Expired - Lifetime EP0861930B2 (de) 1997-02-28 1998-01-28 Auflösewalze für eine Offenend-Spinnmaschine

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP98101428A Expired - Lifetime EP0861930B2 (de) 1997-02-28 1998-01-28 Auflösewalze für eine Offenend-Spinnmaschine

Country Status (6)

Country Link
US (1) US6006511A (cs)
EP (2) EP1249525B1 (cs)
CZ (1) CZ293720B6 (cs)
DE (3) DE19708190A1 (cs)
SK (1) SK24698A3 (cs)
TW (1) TW430702B (cs)

Families Citing this family (13)

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Publication number Priority date Publication date Assignee Title
EP0953662B2 (de) † 1998-04-30 2005-05-25 Graf + Cie AG Verfahren zur Herstellung einer Einrichtung für das Behandeln von Textilfasern
DE19951775C1 (de) 1999-10-27 2001-01-11 Kempten Elektroschmelz Gmbh Verfahren zur Herstellung eines Garniturdrahts für das Open-End-Spinnen
DE10106673A1 (de) * 2001-02-14 2002-08-29 Rieter Ingolstadt Spinnerei Verfahren zur Herstellung einer Auflösewalze einer Offenend-Spinnvorrichtung sowie eine mit Hilfe eines solchen Verfahrens hergestellte Auflösewalze
DE10132867A1 (de) * 2001-07-06 2003-01-23 Rieter Ingolstadt Spinnerei Auflösewalze
DE10150431A1 (de) * 2001-10-11 2003-04-17 Rieter Ingolstadt Spinnerei Auflösewalze mit einem beschichteten Garniturdraht
DE10329888B4 (de) * 2002-11-28 2011-12-15 Oerlikon Textile Gmbh & Co. Kg Verfahren und Vorrichtung zur Herstellung eines Garniturdrahtes für eine Auflösewalze
DE10260507A1 (de) * 2002-12-21 2004-07-01 Rieter Ingolstadt Spinnereimaschinenbau Ag Auflösewalze mit einer axialen Demontageöffnung
DE102004029659B4 (de) 2004-06-18 2017-03-30 Rieter Ingolstadt Gmbh Auflöseeinrichtung für Spinnmaschinen
DE502005011110D1 (de) * 2004-06-18 2011-04-28 Rieter Ingolstadt Gmbh Auflöseeinrichtung für Spinnmaschinen
WO2006128744A1 (en) * 2005-05-30 2006-12-07 Nv Bekaert Sa Card clothing wire with a coating having a high hardness
DE102007037229A1 (de) * 2007-08-07 2009-02-12 Rieter Ingolstadt Gmbh Auflösewalze mit Clipverbindung
DE102009038329A1 (de) 2009-08-20 2011-02-24 Oerlikon Textile Gmbh & Co. Kg Träger zur Aufnahme eines schraubenlinienförmig vorgeformten Garniturdrahtes
DE102016124635A1 (de) * 2016-12-16 2018-06-21 Saurer Germany Gmbh & Co. Kg Auflösewalze für eine Rotorspinnmaschine

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Also Published As

Publication number Publication date
DE59811123D1 (de) 2004-05-06
CZ293720B6 (cs) 2004-07-14
EP0861930A2 (de) 1998-09-02
TW430702B (en) 2001-04-21
EP0861930B2 (de) 2007-06-06
CZ54698A3 (cs) 1998-09-16
SK24698A3 (en) 1998-11-04
EP0861930A3 (de) 1999-04-14
EP0861930B1 (de) 2002-12-04
US6006511A (en) 1999-12-28
EP1249525A3 (de) 2002-11-27
DE59806482D1 (de) 2003-01-16
EP1249525A2 (de) 2002-10-16
DE19708190A1 (de) 1998-09-03

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