EP0412504A1 - Auflösewalze für eine OE-Spinnvorrichtung und Verfahren zu ihrer Herstellung - Google Patents

Auflösewalze für eine OE-Spinnvorrichtung und Verfahren zu ihrer Herstellung Download PDF

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Publication number
EP0412504A1
EP0412504A1 EP90115164A EP90115164A EP0412504A1 EP 0412504 A1 EP0412504 A1 EP 0412504A1 EP 90115164 A EP90115164 A EP 90115164A EP 90115164 A EP90115164 A EP 90115164A EP 0412504 A1 EP0412504 A1 EP 0412504A1
Authority
EP
European Patent Office
Prior art keywords
base body
opening roller
roller according
cavity
base
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Withdrawn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
EP90115164A
Other languages
German (de)
English (en)
French (fr)
Inventor
Eberhard Hofmann
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
Schubert und Salzer Maschinenfabrik 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
Priority claimed from DE8909448U external-priority patent/DE8909448U1/de
Application filed by Rieter Ingolstadt Spinnereimaschinenbau AG, Schubert und Salzer Maschinenfabrik AG filed Critical Rieter Ingolstadt Spinnereimaschinenbau AG
Publication of EP0412504A1 publication Critical patent/EP0412504A1/de
Withdrawn legal-status Critical Current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
    • 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
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G15/00—Carding machines or accessories; Card clothing; Burr-crushing or removing arrangements associated with carding or other preliminary-treatment machines

Definitions

  • the invention relates to an opening roller for an OE spinning device with a base body attached to a shaft and a set of teeth or needles and with a cavity extending into the base body, and to methods for producing an opening roller with a hollow base body consisting at least of one part and with a set of teeth or needles.
  • a opening roller which consists of a base body, a clothing receiving part and a cover.
  • the cover is attached to the base body and clamps the clothing receiving part between two flanks.
  • the base body is essentially made of a solid material, which ensures that the clothing receiving surface can be produced with very high accuracy. This is important in order to achieve a good combing result when combing out a beard.
  • the disadvantage of this design is the high use of materials.
  • due to the high be accelerated mass of the opening roller when balancing in extreme cases a lot of material is removed at the corresponding points so that the opening roller runs smoothly.
  • an opening roller is known, which is also composed of several parts.
  • the roller body overlaps the end of a bearing housing facing it with an axial shoulder, a cavity being formed.
  • the cavity is sealed to the outside by means of an annular insert and an annular web, which form a sealing gap. Contamination entering the cavity creates the risk of imbalance during operation.
  • the ring web is formed on the roller body and forms an undercut to the cavity. This results in high manufacturing costs.
  • the object of the present invention is to provide an inexpensive opening roller which ensures high concentricity with a low weight.
  • a base body consists of a base support 1 and a cover 10.
  • the base support 1 is delimited by a wall 17, which connects a hub 13 having an axial bore 50 (FIG. 2) to an annular surface for fitting 4 and thus axially delimits a cavity 16 .
  • a further axial delimitation of the base support 1 by means of the cover 10 creates at least one closed cavity 16 within the base body.
  • the base support 1 of the opening roller is pressed onto a shaft 6.
  • the shaft 6 is rotatably supported in a bearing housing 7.
  • the bearing housing 7 is partially enclosed at one end by the basic carrier 1.
  • the outer circumference of the basic carrier 1 serves to accommodate the clothing.
  • This clothing receptacle 4 is limited by an annular collar 11.
  • At the set holder 4 are the highest Roundness requirements related to the wave 6 required.
  • the base support is advantageously produced using the aluminum die casting process. On the one hand, this allows thin wall thicknesses and, on the other hand, low tolerances for the blank.
  • the ribs 2 also ensure that the shaft receiving surface 5 can be produced both round and rigid with the smallest possible wall thicknesses.
  • Ejection surfaces 3 are arranged on the ribs 2. By means of these ejection surfaces 3, the gentle ejection of the raw part from the die casting tool is ensured.
  • the ejection surfaces 3 are arranged on the base support 1 such that the pressure on the aluminum parts, which is exerted on the base support by the ejector of the die casting tool, does not cause any deformation of the base support 1.
  • Such ejection surfaces 3 are advantageously also arranged on the cover 10.
  • a pressing surface 8 is arranged on the inside.
  • the pressing surface 8 is the joining surface of the base support 1 with a cover 10.
  • Base support 1 and cover 10 form the base body of the opening roller.
  • the lid 10 has a pressing surface 9 corresponding to the pressing surface 8 of the base carrier 1
  • Carrier 1 and cover 10 are connected to each other via the pressing surfaces 8 and 9 and enclose a cavity in the opening roller in the assembled state.
  • the cover 10 is advantageously secured against detachment during operation of the opening roller.
  • the cover 10 is provided with ribs 2 in the cavity 16.
  • the ribs 2 are arranged starting from the joining surface 9 and radially tapering towards the center of the cover 10. An optimal ratio between strength and weight of the cover 10 is hereby achieved.
  • Known clothing rings are clamped on the cover 10 between the ring collar 11 and a ring collar 12 by means of the cover 10.
  • a set can also be applied directly to the set holder 4.
  • it can be advantageous to introduce a thread-shaped groove into the clothing receptacle 4, into which a sawtooth wire is inserted.
  • the set consists of needles, these needles can be inserted directly into the set holder 4.
  • the clothing holder 4 In order to achieve particularly high accuracies with regard to the roundness of the opening roller, the clothing holder 4, the shaft receiving surface 5 and the pressing surfaces 8 and 9 are advantageously turned. Due to this easy machining, the highest dimensional accuracy is achieved.
  • the opening roller according to the invention is particularly notable They are characterized by low material usage and small processing areas.
  • the replacement of worn sets can be carried out quickly and inexpensively.
  • the balancing bores are arranged in the opening roller within the cavity which will later be closed. This results in a quiet running of the opening roller, in particular, since the balancing holes do not produce any air vortices. In addition, a trouble-free dissolution of the sliver is achieved as no dirt or fiber particles can get stuck in the balancing holes.
  • Balancing holes are preferably made on the ejection surfaces 3, since there is a high accumulation of material which has no further function in the operation of the opening roller.
  • Another advantageous embodiment consists in that material is additionally introduced into the cavity for balancing the opening roller. For this purpose, for example, lead is attached to the ribs 2 or the inner surface of the clothing holder 4.
  • Fig. 2 shows a base bracket 1 in plan view. 2, the ribs 2, which are evenly distributed over the circumference, can be seen in particular. A total number of six ribs 2 has proven to be advantageous, since this results in an optimum between the roundness of the clothing receptacle 4 and the shaft receiving surface 5 with regard to the material requirement.
  • the ribs 2 ensure that the clothing holder 4 does not warp during the winding of the clothing wire.
  • the attachment of the cover 10 to the base support 1 can alternatively be realized in the manner shown by screwing, tensioning by means of a plate spring, clamping by means of an O-ring or similar joint connections. It is important that the cover 10 does not detach from the base support 1 during the operation of the opening roller.
  • a balancing bore 19 is arranged on one of the ribs 2 in the material accumulation of the ejection surface 3.
  • the cover 10 is made of plastic.
  • the weight of the opening roller is further reduced and the costs are reduced.
  • Aluminum or zinc alloys are further advantageous materials for the base body. With zinc alloys extremely high dimensional accuracy can be achieved in the manufacture of the raw part.
  • the use of wear-resistant plastic for the production of the base support 1 is also advantageous. The applications depend, for example, on the fiber material to be dissolved or the type of clothing fitted on the basic carrier 1.
  • a sawtooth wire 20 is drawn on the clothing receiving surface 4.
  • FIG. 3 A further embodiment according to the invention is shown in FIG. 3 shown.
  • This is a base support 1, which is produced by forming.
  • the base support 1 is a section made of a light metal extruded profile which is machined.
  • the upper representation of FIG. 3 shows the unprocessed state of the base support 1.
  • the cutout for the bearing 7 is not yet provided here. Machining creates the shaft receiving surface on the one hand and the recess for receiving the bearing on the other.
  • Hub 13 and set holder 4 are also connected with ribs, as shown in FIGS. 1 and 2.
  • the base support 1 is closed by means of two covers 14 and 15.
  • Base support 1, cover 14 and cover 15 form the base body of the opening roller.
  • the covers 14, 15 are fastened to the base support 1 via the collar and protect the cavities 16 from contamination and thus from imbalance during operation.
  • the cover 14, 15 can of course also be attached via other connections which ensure the functionality. For example, they can be glued to the base support 1.
  • the cover 14 and / or 15 can be dispensed with. It is important to ensure that the cavity 16 is largely protected against contamination and thus unbalance of the opening roller.
  • the basic carrier 1 exists in this case from sections of an extruded profile.
  • a rational method of production is advantageous in the embodiment of FIG. 3.
  • surface treatment or processing of the clothing holder 4 can already be carried out on the uncut profile.
  • multiple clamping is avoided when machining several base supports 1.
  • the invention is not restricted to the exemplary embodiments shown. It is also according to the invention, for example, to arrange a further cylindrical partition between the shaft receiving surface 5 and the fitting holder 4. This can be used, for example, to achieve advantages in terms of material distribution when casting or shaping.
  • a continuous axle bore 50 is provided in the hub 13 according to FIGS. 1 to 3.
  • a plurality of base supports 1 can thus be threaded closely together on an axis for the coating operation. Subsequently, the base body 1 is removed from this axis and assembled.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
EP90115164A 1989-08-08 1990-08-07 Auflösewalze für eine OE-Spinnvorrichtung und Verfahren zu ihrer Herstellung Withdrawn EP0412504A1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE8909448U DE8909448U1 (de) 1989-08-08 1989-08-08 Auflösewalze für eine OE-Spinnvorrichtung
DE8909448U 1989-08-08
US39221689A 1989-08-10 1989-08-10
US392216 1989-08-10

Publications (1)

Publication Number Publication Date
EP0412504A1 true EP0412504A1 (de) 1991-02-13

Family

ID=25955106

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90115164A Withdrawn EP0412504A1 (de) 1989-08-08 1990-08-07 Auflösewalze für eine OE-Spinnvorrichtung und Verfahren zu ihrer Herstellung

Country Status (3)

Country Link
EP (1) EP0412504A1 (ko)
KR (1) KR910004861A (ko)
TR (1) TR24717A (ko)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4342137A (en) * 1979-05-03 1982-08-03 The English Card Clothing Company Opening roller for open-end spinning apparatus
DE3543428A1 (de) * 1985-12-09 1987-06-11 Stahlecker Fritz Aufloesewalze fuer eine oe-spinnvorrichtung und verfahren zum beschichten der aufloesewalze

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4342137A (en) * 1979-05-03 1982-08-03 The English Card Clothing Company Opening roller for open-end spinning apparatus
DE3543428A1 (de) * 1985-12-09 1987-06-11 Stahlecker Fritz Aufloesewalze fuer eine oe-spinnvorrichtung und verfahren zum beschichten der aufloesewalze

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
TEXTIL BETRIEB, Band 96, Nr. 4, April 1978, Seiten 22-24; "Ein qualifiziertes Faserauflöseaggregat für OE-Rotorspinnsysteme" *

Also Published As

Publication number Publication date
TR24717A (tr) 1992-03-01
KR910004861A (ko) 1991-03-29

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