EP2584077B1 - Speisemulde für eine Faserbandauflöseeinrichtung einer Offenend-Spinnvorrichtung - Google Patents

Speisemulde für eine Faserbandauflöseeinrichtung einer Offenend-Spinnvorrichtung Download PDF

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Publication number
EP2584077B1
EP2584077B1 EP12006658.4A EP12006658A EP2584077B1 EP 2584077 B1 EP2584077 B1 EP 2584077B1 EP 12006658 A EP12006658 A EP 12006658A EP 2584077 B1 EP2584077 B1 EP 2584077B1
Authority
EP
European Patent Office
Prior art keywords
feed trough
feed
sliver
fiber tape
holder
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.)
Active
Application number
EP12006658.4A
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German (de)
English (en)
French (fr)
Other versions
EP2584077A3 (de
EP2584077A2 (de
Inventor
Heinz Georg Wassenhoven
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.)
Saurer Spinning Solutions GmbH and Co KG
Original Assignee
Saurer Germany GmbH and Co KG
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Publication date
Application filed by Saurer Germany GmbH and Co KG filed Critical Saurer Germany GmbH and Co KG
Publication of EP2584077A2 publication Critical patent/EP2584077A2/de
Publication of EP2584077A3 publication Critical patent/EP2584077A3/de
Application granted granted Critical
Publication of EP2584077B1 publication Critical patent/EP2584077B1/de
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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 invention relates to a feed trough for a sliver disassembling device of an open-end spinning device according to the preamble of claim 1.
  • Feed troughs for sliver disassembling devices of open-end spinning devices have long been known and described in numerous patents in various embodiments in some detail.
  • a sliver opening device in which, as usual, a cylindrical, preferably ribbed sliver draw-in cylinder with an associated feed trough forms a clamping area for a master fiber belt, wherein the feed trough is part of a pivotally mounted feed table.
  • the slowly revolving sliver feed cylinder feeds the original fiber sliver, which is preferably interposed in sliver cans, to a downstream opening roller at a constant transport speed.
  • the original fiber belt On its way to the opening roller, the original fiber belt first passes through a compressor positioned on the feed table, which not only compacts the original fiber belt, but also gives it a specific profile that is favorable for the intake before it reaches the clamping region of the feed trough.
  • the feed table also has a so-called fiber beard support following the clamping region, that is to say the end region of the feed table forms a support surface running essentially rectilinearly on the opening roller for the fiber tuft to be processed by the opening roller.
  • feed troughs are known and in use in large numbers in use, which are formed in two parts. That is, on a pivotally mounted feed table, which is preferably formed as a die-cast aluminum part and end equipped with a concave fiber beard support, a steely Suitemuldenteil is set, for example, which forms a clamping area for the original fiber tape in conjunction with a sliver feed cylinder.
  • Such feed troughs are for example in the DE 40 08 884 A1 described.
  • These known feed troughs have a base body on which a layer of ceramic substances is applied as surface protection layer. That is, in the production of these known feed troughs, the cleaned base body is first roughened by sand blasting and then slurried with a mixture based on water with microscopic particles of chromium oxide, silica and alumina. After drying, the workpiece is heated to about 500 ° C and a multi-step impregnation and heat treatment process. The thus obtained surface of the workpiece is not only relatively abrasion resistant, but also has a coefficient of friction of only about 0.26, which largely prevents the adhesion of impurities.
  • the present invention seeks to provide a wear-resistant food trough, which is inexpensive to produce and designed so that it, as long as possible remains free of contamination, even in the processing of difficult original fiber tape.
  • the feed trough according to the invention in which at a Lucasmuldenhalter replaceable a Chaptermuldenelement is set, which has a seamlessly extending from the clamping area to the Faserbartstütz construction slideway for the sliver, wherein the Suitemuldenelement made in an MIM process and at least has a smooth hard coating in the clamping area and in the area of the fiber tuft support surface, has various advantages.
  • the avoidance of an interface in the region of the original fiber-band sliding surface makes such feed troughs very resistant to contamination, for example, while the smooth hard-material layer in the clamping region and in the region of the tuft support surface leads to a high wear resistance of the feed trough.
  • the production of the feed trough element in an MIM process is based on the recognition that the MIM (Metal Injection Molding) process represents a very advantageous, cost-effective production technology in order to produce metal-resistant components which are ready for installation or have near net shape dimensions.
  • the components to be manufactured can certainly also have a somewhat complex geometry, as is the case with the feed trough element according to the invention.
  • the advantageously prepared in the MIM process feed trough element can be easily and if necessary at any time easily interchangeable set on a Lucasmuldenhalter, which in turn, as described in claim 3, also inexpensive, preferably manufactured as a die-cast part.
  • the hard material layer preferably extends over the entire region of the slideway of the original fiber band. That is, it is not only in the areas which, like the clamping area or the Faserbartstütz construction, are exposed to a very high stress, given optimum wear protection, but it is a sufficient wear protection on the entire length of the slideway guaranteed.
  • the feed trough element by means of a screw, which corresponds to a connection hole in Lucasmuldenhalter, is mounted on the Lucasmuldenhalter.
  • the feed trough element is protected by a hard chrome layer against wear.
  • hard chrome layer By means of such a hard chrome layer, it is possible reliably to produce a very advantageous surface, which is distinguished not only by low wear, but also by a minimum adhesive capacity and relatively good corrosion resistance.
  • the hard chrome layer whose thickness is for example between 10 and 100 microns, can be applied directly, that is, without complex intermediate layers on the body. Another advantage of a hard chrome plating is also to be seen in the fact that when applying a hard chrome layer due to the case used, only relatively low temperatures no distortion of the body is to be feared.
  • FIG. 1 shows an opening roller housing 1 of a generally designated by the reference numeral 20 sliver disassembling a (known and not shown) open-end spinning device.
  • an opening roller 2 is rotatably mounted, which rotates in the direction of arrow 5 during the spinning operation and on its outer circumference has a so-called Auflensewalzengarnitur 3 for combing a template fiber tape 4.
  • Faserbandeinzugszylinder 7 and an associated feed trough 8 are stored.
  • the original fiber tape 4 which is usually stored in a spinning can, not shown, passed through a sliver compressor 9 in the direction of arrow 15 in a clamping zone 10, which is formed by the feed trough 8 and 7 Faserbandeinzugszylinder.
  • the feed trough 8 is acted upon by a (not shown) spring element in the direction of the sliver feed cylinder 7 and presses the original fiber tape 4 at the circulating in the direction of arrow 6 Faserbandeinzugszylinder 7.
  • the sliver feed cylinder 7 promotes the original fiber ribbon 4 in the area opening roller 2, the opening roller 3 combing out the original fiber tape 4 into individual fibers, which are then, as known, fed onto a spinning rotor via a fiber guide channel.
  • the feed trough 8 which is pivotally mounted about a pivot axis 16 and thereby acted upon by a (not shown) spring element, consists of a, preferably as a die-cast part, such as aluminum die-cast, trained Suitemuldenhalter 24 and one on Suitemuldenhalter 24th fixable feed trough element 21.
  • the feed trough element 21 which, as will be explained in more detail below, is manufactured using the MIM method, has a clamping region 22 and a tuft support surface 23. That is, in order to ensure proper guidance of the original fiber tape 4, in particular when combing out the individual fibers, the feed trough element 21 is end equipped with a Faserbartstütz construction 23 which forms a seamless, continuous sliding surface with the clamping portion 22.
  • the feed trough element 21 is fixed, preferably via a screw connection 11, replaceably on the feed trough holder 24.
  • the screw 24 in turn consists in turn of, for example, a bolt 12, which, by means of a connection bore 13 in the feed trough holder, is screwed into a threaded bore 14 of the feed trough element 21.
  • Both the clamping region 22 of the feed trough element 21, which serves to convey the original fiber tape 4, and the tuft support surface 23 of the feed trough element 21, with which the tuft is formed when combing the original fiber tape 4, are concavely curved.
  • a convexly rounded transition region 19 is arranged, whose radius is relatively small.
  • lateral guide lugs 18 are provided which prevent emigration of the original fiber tape 4 during the combing out of the template fiber tape 4.
  • the original fiber tape 4 is brought close by the clamping portion 22 of the feed trough element 21 in the region of the tips of the opening roller 3 and is securely fixed by the Faserbartstütz constitutional 23 of the feed trough element 21.
  • the so-called MIM method is used as the production method, in which a large part of the otherwise usual, relatively expensive rework is eliminated and the reject rate is very low. That is, by the MIM method, it is possible to produce feed troughs for sliver disassembling both low process stage and thus cost, as well as high quality.
  • feed trough elements 21 In the production of feed trough elements 21 according to the MIM (Metal Injection Molding) technology, an organic binder is first mixed with a sinterable substance, for example a very fine ( ⁇ 20 ⁇ m), mostly spherical metal powder to form a homogeneous mass or pellets processed. The volume fraction of the metal powder in this homogeneous mass is usually over 50%. The mass obtained is then handled analogously to the plastic processing on injection molding machines. That is, by means of an injection molding machine from this mass raw bodies are manufactured, which already have all the typical geometric features of the feed trough element 21 to be produced, but still have a volume increased by the binder content.
  • a sinterable substance for example a very fine ( ⁇ 20 ⁇ m)
  • spherical metal powder mostly spherical metal powder to form a homogeneous mass or pellets processed.
  • the volume fraction of the metal powder in this homogeneous mass is usually over 50%.
  • the mass obtained is then handled analogously to
  • the organic binders are removed from the green bodies.
  • the remaining porous intermediate bodies are then sintered compressed under different protective gases or vacuum to feed troughs with the final dimensions.
  • the resulting shrinkage can lead to final densities greater than 96%.
  • the grain size of the sinterable material and the selection of debindering and / or sintering parameters can be taken specifically influence on the surface structure of the feed trough element. This means that the most favorable surface structure for further processing can already be determined in advance.
  • the components manufactured according to the MIM technology already have a relatively high strength and can then be easily further improved by appropriate post-treatments.
  • the coming into contact with the fibers of the original fiber tape 4 surfaces of the feed trough element 21 can then in a relatively simple manner in addition, preferably by a hard chrome layer can be improved. That is, in a plating bath, chromium is electrolytically deposited on the feed well elements previously made in the MIM process. This known hard chrome process is usually carried out at temperatures between 50 ° and 60 ° C.
  • the hard chrome layer whose thickness is for example between 10 and 100 microns, can be applied directly, that is, without complex intermediate layers on the body. Another advantage of a hard chrome plating is also to be seen in the fact that when applying a hard chrome layer due to the relatively low temperatures no distortion of the body is to be feared.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
EP12006658.4A 2011-10-22 2012-09-22 Speisemulde für eine Faserbandauflöseeinrichtung einer Offenend-Spinnvorrichtung Active EP2584077B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102011116786A DE102011116786A1 (de) 2011-10-22 2011-10-22 Speisemulde für eine Faserbandauflöseeinrichtung einer Offenend-Spinnvorrichtung

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
DE102011116786 Previously-Filed-Application 2011-10-22

Publications (3)

Publication Number Publication Date
EP2584077A2 EP2584077A2 (de) 2013-04-24
EP2584077A3 EP2584077A3 (de) 2015-04-08
EP2584077B1 true EP2584077B1 (de) 2016-07-06

Family

ID=47008239

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12006658.4A Active EP2584077B1 (de) 2011-10-22 2012-09-22 Speisemulde für eine Faserbandauflöseeinrichtung einer Offenend-Spinnvorrichtung

Country Status (3)

Country Link
EP (1) EP2584077B1 (zh)
CN (2) CN103060965A (zh)
DE (1) DE102011116786A1 (zh)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017118392A1 (de) * 2017-08-11 2019-02-14 Saurer Spinning Solutions Gmbh & Co. Kg Speisetischvorrichtung für eine Faserbandauflösevorrichtung einer Offenend-Spinnvorrichtung
DE102019116584A1 (de) * 2019-06-19 2020-12-24 Saurer Spinning Solutions Gmbh & Co. Kg Faserbandauflöseeinrichtung für eine Offenend-Spinnvorrichtung und Speisemulde für die Faserbandauflöseeinrichtung

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2440223A1 (de) * 1974-08-22 1976-03-04 Fritz Stahlecker Vorrichtung zum zufuehren eines faserbandes fuer offenend-spinnaggregate
DE3501842C2 (de) 1985-01-22 1997-08-21 Schlafhorst & Co W Faserbandauflöseaggregat für eine OE-Spinnmaschine
DE3629380A1 (de) * 1986-08-29 1988-03-03 Fritz Stahlecker Zufuehreinrichtung fuer oe-spinnaggregate
DE4008884C2 (de) 1990-03-20 2001-04-05 Schlafhorst & Co W Auflöseeinrichtung einer Offen-End-Spinnvorrichtung
DE4101315C2 (de) * 1991-01-18 1999-04-29 Stahlecker Fritz Zuführ- und Auflöseeinrichtung für eine OE-Spinnvorrichtung
DE4130510A1 (de) * 1991-09-13 1993-03-18 Rieter Ingolstadt Spinnerei Verfahren und vorrichtung zum pneumatischen einfuehren von faserband in eine spinnereimaschine
DE19504607A1 (de) 1995-02-11 1996-08-14 Schlafhorst & Co W Faserbandzuführvorrichtung für OE-Spinnmaschinen
DE19511084A1 (de) * 1995-03-25 1996-09-26 Schlafhorst & Co W Offenend-Spinnvorrichtung
CH690775A5 (de) * 1995-12-28 2001-01-15 Rieter Ag Maschf Rundkammsegment zur Befestigung auf einer Rundkammwalze einer Kämmaschine.
DE19826070B4 (de) * 1998-06-12 2015-12-10 Trützschler GmbH & Co Kommanditgesellschaft Vorrichtung an einer Spinnereimaschine zum Herstellen eines Faserflockenvlieses, z. B. aus Baumwolle, Chemiefasern
DE10231484A1 (de) * 2002-03-13 2003-09-25 Rieter Ingolstadt Spinnerei Reinigungsvorrichtung zur Reinigung eines Spinnrotors
DE10224205A1 (de) * 2002-05-31 2003-12-11 Schlafhorst & Co W Kanalplattenadapter für eine Offenend-Spinnvorrichtung
DE10351365A1 (de) * 2003-10-16 2005-06-02 Saurer Gmbh & Co. Kg Speisemulde für eine Faserbandauflöseeinrichtung einer Offenend-Spinnvorrichtung
CN2673890Y (zh) * 2003-12-02 2005-01-26 欧阳俊青 具有压力传感器的给棉板
DE102004005429A1 (de) * 2004-02-04 2005-08-25 Saurer Gmbh & Co. Kg Faserleitkanal für eine Offenend-Spinnvorrichtung sowie Verfahren zum Herstellen eines Faserleitkanals

Also Published As

Publication number Publication date
CN103060965A (zh) 2013-04-24
CN109295565A (zh) 2019-02-01
EP2584077A3 (de) 2015-04-08
DE102011116786A1 (de) 2013-04-25
EP2584077A2 (de) 2013-04-24

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