EP0255602B1 - Anordnung zum Beliefern einer Faserbearbeitungsmaschine - Google Patents

Anordnung zum Beliefern einer Faserbearbeitungsmaschine Download PDF

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Publication number
EP0255602B1
EP0255602B1 EP87109220A EP87109220A EP0255602B1 EP 0255602 B1 EP0255602 B1 EP 0255602B1 EP 87109220 A EP87109220 A EP 87109220A EP 87109220 A EP87109220 A EP 87109220A EP 0255602 B1 EP0255602 B1 EP 0255602B1
Authority
EP
European Patent Office
Prior art keywords
vanes
arrangement according
needles
fibre
height
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
EP87109220A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0255602A1 (de
Inventor
Paul Stäheli
Fritz Knabenhans
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.)
Maschinenfabrik Rieter AG
Original Assignee
Maschinenfabrik Rieter 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 Maschinenfabrik Rieter AG filed Critical Maschinenfabrik Rieter AG
Publication of EP0255602A1 publication Critical patent/EP0255602A1/de
Application granted granted Critical
Publication of EP0255602B1 publication Critical patent/EP0255602B1/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
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G23/00—Feeding fibres to machines; Conveying fibres between machines
    • D01G23/02—Hoppers; Delivery shoots

Definitions

  • the present invention relates to an arrangement for supplying a fiber processing machine according to the preamble of claim 1.
  • the arrangement has the features listed in the characterizing part of claim 1.
  • the invention thus provides the additional advantages that changes in shape of existing systems, in particular additional space requirements, or bulky units to be attached or are not necessary.
  • the higher homogeneity of the original is obtained by reducing the kinetic energy of the incoming flakes and by deflecting them.
  • the question may therefore arise whether the flock speed is not further increased by the blades additionally provided according to the invention and thus the homogeneity of the original is deteriorated.
  • the filling shaft is closed relatively well at the location of the opening roller and the two pinch rollers, so that as a result of the blades there is only a slight increase in the outside air entering the shaft from the outside, and therefore assuming a constant rotational speed of the roller , there is no cause for a much higher speed of the same.
  • Fiber material transported by a conveyor channel (not shown) is collected in a discharge head 11. From the head 11 it enters a feed shaft 12. At its lower end there are two feed rollers 13 forming a clamping line with one another. A perforated wall separates the shaft 12 from a calming space 14 which leads to an exhaust air housing 15 which has an air outlet opening 16.
  • An opening roller 17 is provided immediately after the feed rollers 13. Distributed over the outer surface 18 of the needles 19 are attached to it.
  • a deflection element 20 and an impact element 21 are provided.
  • the deflection element 20 is pivotable about an axis 22 and adjustable in different angular positions.
  • the impact element 21 in turn can be adjusted as desired between the positions shown in broken lines.
  • the fiber flakes flown into the separating head 11 are collected in the feed shaft 12. This takes place by means of an air flow flowing from the head 11 via the shaft 12 and through the space 14, which flows out again through the housing 15 and the opening 16.
  • the collected flake material 26 is fed by means of the feed rollers 13 to the opening roller 17, which rotates continuously in the direction of arrow 27 about its axis during operation.
  • the needles 19 tear fiber material in the form of cotton flakes with them and hurl it into the filling shaft 23, in which it falls down and is compressed into the template 24.
  • wings 25 are also provided in addition to the needles 19. These are shaped as elongated strips which are parallel to the generatrices of the cylinder of the roller 17 and extend outwards from the circumferential surface 18 thereof stretch. In the examples shown in the figures, they are bent backwards with respect to the direction of rotation of the roller 17 shown by the arrow 27.
  • the needles 19 form rows which run along surface lines of the cylindrical part of the roller 17.
  • Each of the strip-shaped wings 25 extends in its longitudinal direction in the direction parallel to the surface lines over the entire length of the roller 17. The height of the wings 25 above the outer surface 18 is smaller than that Height of the needles above the outer surface 18.
  • the course of the wings 25, since these lie parallel to the rows of needles, is also oblique with respect to the generatrices.
  • the wings 25 do not have to be exactly parallel to the surface lines. However, they are advantageously "essentially” parallel to these.
  • the vanes 25 bring about a better entrainment of the air, so that the provision of the vanes 25 increases the air throughput, which, however, always takes on very modest values, and, above all, increases the air pressure in the filling duct 23. This results in a heavier and more uniform template 24 than would be the case without wings.
  • the increased air pressure and the greater air throughput result in a more even distribution of the fiber material because it is moved more vigorously, and possibly with transverse movements, into the empty spaces that may initially be present between individual flakes.
  • the variation coefficient CVim was 3.6% for a card sliver produced without wing 25 on the opening roller 17 of the feed chute, while the corresponding value of that with wing 25 on the opening roller 17 card sliver produced was 2.96%.
  • the additional use of the action members 20, 21 may be advantageous.
  • the element 20 and the organ 21 serve primarily to reduce the kinetic energy of the flakes and to distribute them evenly.
  • the use of each of the action members 20, 21 alone or both together in combination with the present invention therefore results in an additional homogenization of the template 24.
  • the vanes 25 are bent back over their entire width with respect to the direction of rotation of the roller 17 shown by the arrow 27.
  • the purpose of bending is to prevent fibers from getting caught.
  • the use of such wings results in the further advantage that the swirling of the flakes becomes smaller in the feed chute 23, which also has a positive effect on the uniformity of the feed.
  • they have the shape of flat strips which can even be perpendicular to the lateral surface 18.
  • they are bent back only at their wing part which is remote from the lateral surface and extends in the longitudinal direction of the wing.
  • the wing 25 has a strip-shaped section 33 facing the jacket 18, which is flat. However, a strip-shaped wing part 29 facing away from the lateral surface 18 and one longitudinal side of which is delimited by a free edge 30 is bent. It has a bend in which, at the location of the free edge 30, the tangents 31 perpendicular to the latter on the wing part 29 coincide with the tangents which, at this location, bear against the cylindrical surface 32 described by the edge 30 during its rotation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
EP87109220A 1986-07-08 1987-06-26 Anordnung zum Beliefern einer Faserbearbeitungsmaschine Expired - Lifetime EP0255602B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2751/86 1986-07-08
CH275186 1986-07-08

Publications (2)

Publication Number Publication Date
EP0255602A1 EP0255602A1 (de) 1988-02-10
EP0255602B1 true EP0255602B1 (de) 1990-04-11

Family

ID=4240785

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87109220A Expired - Lifetime EP0255602B1 (de) 1986-07-08 1987-06-26 Anordnung zum Beliefern einer Faserbearbeitungsmaschine

Country Status (5)

Country Link
US (1) US4797979A (ja)
EP (1) EP0255602B1 (ja)
JP (1) JPS6321928A (ja)
DE (1) DE3762244D1 (ja)
IN (1) IN170121B (ja)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0333904A1 (de) * 1988-03-24 1989-09-27 Spinnbau GmbH Vorrichtung zum Zuführen von Fasermaterial zu einer Krempel, Karde oder dergleichen
DE3904317A1 (de) * 1989-02-14 1990-08-16 Hollingsworth Gmbh Vorrichtung zum pneumatischen speisen von fasergut zu einem schacht u. dgl.
IT1229406B (it) * 1989-06-01 1991-08-08 Marzoli & C Spa Macchina per l'apritura e la miscelazione di cotone in fiocco, a struttura perfezionata.
IT1303784B1 (it) * 1998-11-24 2001-02-23 Flii Marzoli & C S P A Dispositivo di preparazione e di apertura di fibre in fiocco daalimentare ad una carda.
DE10142488A1 (de) * 2001-08-30 2003-03-20 Schlafhorst & Co W Auflöseeinrichtung für eine Offenend-Spinnvorrichtung
US7032273B2 (en) * 2003-05-12 2006-04-25 Akiva Pinto Fiber mixing and opening machine
CH702443A1 (de) * 2009-12-17 2011-06-30 Rieter Ag Maschf Reinigungsvorrichtung für Faserflocken.
CN104451964A (zh) * 2014-11-13 2015-03-25 江南大学 一种羽绒杂质清除机的羽绒通道开松装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR682071A (fr) * 1929-09-20 1930-05-22 Garniture de carde pour volants de machines à carder
US2068587A (en) * 1934-05-22 1937-01-19 Jr Alfred P Aldrich Hopper feeder
GB1298561A (en) * 1969-03-10 1972-12-06 Stewart & Sons Wm R Improvements relating to carding, drawing and other machines and a method of fixing pins in a matrix
GB1284214A (en) * 1970-02-12 1972-08-02 Carding Spec Canada Improvements relating to the feeding of fibrous material to carding machines
CS176655B1 (ja) * 1975-02-04 1977-06-30
CS184602B1 (en) * 1976-06-04 1978-08-31 Jaromir Kasparek Fibre separating device for open-end rotor spinning units
FR2479857A1 (fr) * 1980-04-04 1981-10-09 Alsacienne Constr Meca Separateur de fibres pour l'alimentation d'un poste de filature a fibres liberees
CA1201354A (en) * 1981-08-26 1986-03-04 David B. Stewart Feeding particulate material, especially tobacco
DE3535684C2 (de) * 1985-10-05 1996-06-05 Truetzschler Gmbh & Co Kg Vorrichtung zur Speisung eines Öffners oder Reinigers für Textilfaserflocken

Also Published As

Publication number Publication date
DE3762244D1 (de) 1990-05-17
JPS6321928A (ja) 1988-01-29
US4797979A (en) 1989-01-17
IN170121B (ja) 1992-02-15
EP0255602A1 (de) 1988-02-10

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