EP1620584B1 - Groupe pince d'une peigneuse - Google Patents

Groupe pince d'une peigneuse Download PDF

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Publication number
EP1620584B1
EP1620584B1 EP04716535A EP04716535A EP1620584B1 EP 1620584 B1 EP1620584 B1 EP 1620584B1 EP 04716535 A EP04716535 A EP 04716535A EP 04716535 A EP04716535 A EP 04716535A EP 1620584 B1 EP1620584 B1 EP 1620584B1
Authority
EP
European Patent Office
Prior art keywords
nipper
nipper unit
feed cylinder
cushion plate
frame
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
EP04716535A
Other languages
German (de)
English (en)
Other versions
EP1620584A1 (fr
Inventor
Daniel Sommer
Michael Rapold
Jiri Meduna
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 EP1620584A1 publication Critical patent/EP1620584A1/fr
Application granted granted Critical
Publication of EP1620584B1 publication Critical patent/EP1620584B1/fr
Anticipated expiration legal-status Critical
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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
    • D01G19/00—Combing machines
    • D01G19/06—Details
    • D01G19/14—Drawing-off and delivery apparatus
    • D01G19/16—Nipper mechanisms

Definitions

  • the invention relates to a nipper unit of a combing machine with a reciprocating pliers frame having a lower tong plate and with a mounted in the forceps frame via lateral pivot arms upper pliers plate, which can form a nip with the lower pliers plate in the region of the pliers lip plate and with a above the lower pliers plate stored in bearing receptacles of the pliers frame feed cylinder.
  • Such a nipper unit of a combing machine is shown and described, which performs a reciprocating motion via pivot arms.
  • eight such nipper units are installed on a combing machine.
  • the upper pliers plate is pivotally mounted on swivel arms on the pliers frame.
  • a strut is attached to the respective pivot arm via a hinge point, which is mounted on the other end on a driven eccentric.
  • the feed cylinder shown in the nipper unit is mounted laterally in bearing receptacles in the nipper frame.
  • the feed cylinder has to be removed (eg for cleaning purposes, for threading the wadding or for replacement after wear), it is necessary in this arrangement to transfer the pivot arms with the upper tong plate in a pivoted back position. Only in this position, it is possible that the feed cylinder can be easily removed upwards.
  • special tool is required for this pivoting, since the pivoting takes place against the spring force of the springs of the struts.
  • the nipper unit must be in a front position (front dead center position) to perform the pivoting. On the one hand, this is tedious and sometimes time-consuming, especially if the special tool can not be found right away.
  • the invention is therefore based on the object to overcome these disadvantages and to propose an embodiment of a nipper unit, the accessibility to the expansion of the feed cylinder is substantially improved.
  • This object is achieved by proposing that the lateral pivot arms of the tong plate are arranged or formed so that they are outside the range, which passes through the feed cylinder when he - transversely to its axis - from an operating position to an inoperative position is transferred.
  • the feed cylinder can be easily moved from its operating position to a non-operating position in each position of the pliers, without having to be brought via special tools, the upper nipper plate with its pivot arms in a different position.
  • the term of the displacement of the feed cylinder is understood to mean the feed cylinder including its bearings and other components which must be moved during the displacement in order to bring it into an inoperative position.
  • operating position includes the fixed position of the feed cylinder, in which it forms a conveying gap in cooperation with the lower nipper plate 12, or with a feed trough mounted therein, in which an intermediate wadding path is transported by rotation of the feed cylinder.
  • area traversed by the feed cylinder as it is displaced from its operative position to an inoperative position is substantially the space through which the feed cylinder is made on its way to that position.
  • each one provided with a spring element strut is hinged to the pivot arms, the other free end is mounted at a fixed pivot point in the machine frame, wherein the strut is formed so that a clamping force in the region of the pliers lip lip between upper and lower plier plate is generated when the nipper unit is in a rear position.
  • the accessibility is optimized for the feed cylinder and tuned the control of the upper tong plate for applying the necessary clamping force to the position of the pivot arms below the storage of the feed cylinder.
  • the fixed pivot point of the respective shock absorber can advantageously be arranged below the nipper unit.
  • the bearing receptacles of the feed cylinder have an opening at the top, the clear width is at least the diameter of the bearing seat inserted bearing of the feed cylinder and means are provided to close the opening. This ensures a simple and quick disassembly or assembly of the feed cylinder, or the feed cylinder.
  • the release of the locking of the feed cylinder is simplified when the means for closing the opening are pivotally mounted about an axis fixed in the clamp frame.
  • the means may consist of a pivotable two-armed lever, wherein a first arm for covering with the opening is displaceable and a second arm is pivotable in the region of action of a spring element.
  • the spring element consists of two sleeves, wherein a first sleeve is fixed to the forceps frame and receives a compression spring and a second sleeve, which is closed on one side, in the region of the open side on the first sleeve to be led.
  • a radially projecting tab may be provided on the second sleeve, with which the handling is facilitated.
  • Figure 1 shows a nipper unit 1, which is pivotally mounted on the crank arms 2, 3.
  • crank arms 2 are each mounted laterally of a circular comb 4 on the circular comb shaft 5 pivotally.
  • the other end of the pivot arms 2 is rotatably mounted on the clamp frame 8.
  • the rear pivot arm 3 (there may also be two) is rotatably mounted on a gun shaft 10.
  • the opposite free end of the pivot arm 3 is rotatably connected via a shaft 9 with the clamp frame 8.
  • the nipper unit 1 consists essentially of a fixed to the forceps frame 8 lower pliers plate 12 and an upper pliers plate 14 (partially also called pliers blade), which is attached to two pivot arms 15, 15 '. These pivoting arms are pivotally mounted on the tong frame 8 via a pivot axis 16.
  • the pivot arms 15, 15 ' are each connected to a spring leg 18, which in turn are mounted on a driven eccentric 21 via an axis 20. Seen in the material flow direction behind the nipper unit a Abreisszylindercru 24 is provided.
  • a feed cylinder 27 is rotatably mounted, which performs a discontinuous rotational movement via a drive, not shown in detail, to transport the supplied cotton W sections.
  • the feed cylinder 27 has a shaft 28, via which it is rotatably mounted on both ends via bearings 29 in not shown here bearing receptacles of the nipper frame.
  • FIG. 2 To remedy these disadvantages, an embodiment according to FIG. 2 is proposed, which will now be explained in more detail.
  • the pivot arms 15a of the upper tong plate 14 extend below the bearing seat 26 of the feed cylinder 27.
  • the pivot axis 16 of the pivot arms 15a is mounted below the bearing seat 26. This ensures that a sufficient pivoting range for the pivot arms 15a is present to perform the necessary pivoting movement.
  • the area above the feed cylinder is completely freely accessible, whereby an expansion of the feed cylinder can be carried out easily and quickly.
  • the struts 18a which laterally on the axes 23 on the pivot arms 15a attack (see Figure 3) are pivotally mounted on an axis 34, which is attached below the tear-off cylinder 24 on the machine frame.
  • the space above the feed cylinder can be kept completely free.
  • another (not shown) drive arrangement for the nipper unit would be possible.
  • the drive of the nipper unit could for example be done from the circular comb axis. However, this is not decisive for the claimed execution.
  • the opening 31 of the guide 38 is covered in the position shown by the arm 33 ", which is part of a two-armed lever 33, the second arm 33 'of the lever 33 is approximately at right angles to the arm 33 "and is acted upon by a spring element 40, whereby the arm 33' against the surface of the bearing receiver 26 in the area the opening 31 is pressed. This ensures that the feed cylinder 27 remains in its installed position during operation.
  • the spring element 40 consists of a sleeve 41 which is fixed to the forceps frame 8. Coaxially on the sleeve 40, a further sleeve 42 is guided, which is provided with a tab 46. Within the sleeve 41, a spring 44 is guided, which rests on one end on a pin 45 of the sleeve 41 and at the opposite end to the inner wall of the fin 49 of the sleeve 42.
  • a lever 47 rotatably attached, which is connected to a drive not shown in detail.
  • this drive could be made by a main drive shaft via a correspondingly designed linkage, which cooperates with a cam.
  • a possible execution is for example from the GB-PS 933,946 refer to.
  • the sleeve 42 With a necessary expansion of the feed cylinder 27, the sleeve 42 is moved against the spring force of the spring 44 after the separation of the schematically indicated drive element 47 via the tab 46 to the rear. As a result, the arm 33 'of the lever 33 is released and can be pivoted about the axis 30 in the clockwise direction. As a result, the opening 31 is clear with which the feed cylinder, or their bearing 29 can be removed from the guide 38 upwards.
  • the lever 33 is pivoted counterclockwise at the same time pushed back sleeve until it rests on the surface of the bearing support 26 and thus closes the opening 31 again.
  • the sleeve 42 can be moved with the spring force of the spring 44 to the left until the conclusion 49 comes to rest on the arm 33 '. It is also possible, if necessary, to fix the spring element 40 in this position with an additional lock (not shown) in order to avoid an automatic release of the lever 33.
  • FIG. 4 and Figure 5 a further embodiment is shown, wherein in contrast to the previous embodiment, the pivot arms 15d, 15e are arranged above the tong plate 12 and can pivot about one axis 16 each.
  • the two pivot arms 15d, 15e have a clear width L to each other, which is greater than the length B of the feed cylinder 27 including its bearings 29 and hinged to the feed cylinder lever 47.
  • This lever 47 is indicated only schematically and is responsible for driving the feed cylinder. It can be provided between the axis 28 of the feed cylinder 27 and the lever 47, a freewheel, via which a discontinuous drive movement is generated.
  • the lever can, as described in the previous example, be a part of a hinge mechanism, not shown, which has a roller which is guided on a cam, which is rotatably connected, for example, with the circular comb axis. It is also conceivable on both ends of the feed cylinder 27 to provide a drive with a freewheel to perform a mixed feed in the forward and reverse of the pliers. Such an arrangement is for example from the U.S. Patent 3,400,431 refer to. In this case, the clear width L must be so large, so that when the displacement of the feed cylinder and the opposite drive element within the clear Wide L lies. There are of course also different drive options for the feed cylinder possible, as can be seen from the known literature.
  • the embodiment of the pivot arm 15e is formed somewhat differently (as an example) than the embodiment of the pivot arm 15d; Important for the displacement of the feed cylinder 27 is that this can be moved from its operating position in any position or position of the nipper unit 1, without the pivot arms 15d, 15e hinder this shift.
  • the drive of the nipper unit 1 is initiated via a drive rod S articulated on the nipper frame 8 on the shaft 9.
  • the struts 18 are mounted above the forceps frame 8.
  • the locking of the feed cylinder 27 can also be done as in the example of Figure 2 via a two-armed lever 33.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)

Claims (11)

  1. Agrégat de pince (1) d'une peigneuse, comportant un châssis de pince (6) mobile en va et vient équipé d'une plaque de pince inférieure (12) et une plaque de pince supérieure (14) s'appuyant dans le châssis de pince par des bras oscillants latéraux (15, 15a) et qui peut constituer avec la plaque de pince inférieure (12) un point de serrage au niveau de la lèvre de plaque de pince (13) et un cylindre d'alimentation (27) s'appuyant au dessus de la plaque de pince inférieure (12) dans des supports de palier (26) du châssis de pince (8), caractérisé en ce que les bras oscillants latéraux (15, 15a) de la plaque de pince (14) sont disposés ou conçus de manière à se trouver en dehors de la zone que traverse un cylindre d'alimentation (27) présentant une longueur (B) lorsqu'il est passé -transversalement à son axe (28)- d'une position de marche à une position hors marche.
  2. Agrégat de pince (1) selon la revendication 1, caractérisé en ce que les bras oscillants (15a) de la plaque de pince supérieure (14) s'étendent en dessous des supports de palier (26) du cylindre d'alimentation (27).
  3. Agrégat de pince (1) selon la revendication 2, caractérisé en ce que les points d'appui (16) des bras oscillants (15a) sont disposés en dessous des supports de palier (26) du cylindre d'alimentation (27).
  4. Agrégat de pince (1) selon la revendication 1, caractérisé en ce que la portée libre (L) entre les bras oscillants (15d, 15e), du moins dans la zone que le cylindre d'alimentation (27) traverse lors de son passage à une position hors marche, est supérieure à la longueur (B) du cylindre d'alimentation (27).
  5. Agrégat de pince (1) selon une des revendications 2 à 4, caractérisé en ce qu'aux bras oscillants (15a) s'articule respectivement une jambe élastique (18a) équipée d'un élément à ressort dont l'autre extrémité libre s'appuie à un point de rotation (34) dans le bâti de machine (MG), la jambe élastique (18a) étant conçue de manière à ce qu'une force de serrage soit générée au niveau de la lèvre de plaque de pince (13) entre la plaque de pince supérieure et inférieure (12, 14) lorsque l'agrégat de pince (1) se trouve en position arrière.
  6. Agrégat de pince (1) selon la revendication 5, caractérisé en ce que le point de rotation (34) de la jambe élastique respective (18a) est disposé en dessous de l'agrégat de pince (1).
  7. Agrégat de pince (1) selon une des revendications 1 à 6, caractérisé en ce que les supports de palier (26) du cylindre d'alimentation (27) ont une ouverture vers le haut (31) dont la portée libre représente au moins le diamètre du palier (29) inséré dans le support de palier (26) du cylindre d'alimentation et que des moyens sont prévus pour fermer l'ouverture.
  8. Agrégat de pince (1) selon la revendication 7, caractérisé en ce que ces moyens s'appuient en pivotement autour d'un axe fixé dans le châssis de pince.
  9. Agrégat de pince (1) selon la revendication 7, caractérisé en ce que ces moyens sont composés d'un levier pivotable à deux bras, un premier bras pouvant être amené en recouvrement avec l'ouverture et un deuxième bras pouvant pivoter dans la zone d'action d'un élément à ressort.
  10. Agrégat de pince (1) selon la revendication 9, caractérisé en ce que l'élément à ressort est composé de deux manchons, un premier manchon étant fixé sur le châssis de pince et recevant un ressort de compression et un deuxième manchon fermé d'un côté étant guidé au niveau du côté ouvert sur le premier manchon.
  11. Agrégat de pince (1) selon la revendication 10, caractérisé en ce que le deuxième manchon est pourvu d'une patte saillant radialement.
EP04716535A 2003-04-02 2004-03-03 Groupe pince d'une peigneuse Expired - Lifetime EP1620584B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH5762003 2003-04-02
PCT/CH2004/000125 WO2004088013A1 (fr) 2003-04-02 2004-03-03 Groupe pince d'une peigneuse

Publications (2)

Publication Number Publication Date
EP1620584A1 EP1620584A1 (fr) 2006-02-01
EP1620584B1 true EP1620584B1 (fr) 2007-09-05

Family

ID=33102866

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04716535A Expired - Lifetime EP1620584B1 (fr) 2003-04-02 2004-03-03 Groupe pince d'une peigneuse

Country Status (5)

Country Link
EP (1) EP1620584B1 (fr)
JP (1) JP2006522231A (fr)
CN (1) CN100480444C (fr)
DE (1) DE502004004887D1 (fr)
WO (1) WO2004088013A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008104319A1 (fr) * 2007-02-26 2008-09-04 Oerlikon Textile Gmbh & Co. Kg Mécanisme de pince d'une peigneuse

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH699285A2 (de) * 2008-07-31 2010-02-15 Rieter Ag Maschf Kämmvorrichtung zum Kämmen eines Fasermaterials.
CH705071A2 (de) * 2011-06-06 2012-12-14 Rieter Ag Maschf Zangenaggregat einer Kämmmaschine.
CN105887250B (zh) * 2016-05-18 2018-06-12 中原工学院 一种新型精梳机钳板机构
CN109338522A (zh) * 2018-11-14 2019-02-15 经纬智能纺织机械有限公司 一种精梳机钳板开口控制装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB162764A (en) * 1920-02-02 1921-05-02 James Jolly Improvements in combing machines
US3103041A (en) * 1960-05-18 1963-09-10 Whitin Machine Works Fringe control blade for combing machine
JPS49110930A (fr) * 1973-02-28 1974-10-22
JPS5237834A (en) * 1975-08-14 1977-03-24 Toyoda Automatic Loom Works Drive apparatus for knipper shaft in comber
DE2845245C3 (de) * 1978-10-18 1981-12-10 Schubert & Salzer Maschinenfabrik Ag, 8070 Ingolstadt Kämmaschine
DD138999B1 (de) * 1978-10-24 1980-11-26 Manfred Welker Flachkaemmaschine
DE3831020A1 (de) * 1988-09-12 1990-03-15 Gerhard Reiter Kaemmaschine
CH686675A5 (de) * 1993-03-12 1996-05-31 Rieter Ag Maschf Klemmstelle fuer Watte.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008104319A1 (fr) * 2007-02-26 2008-09-04 Oerlikon Textile Gmbh & Co. Kg Mécanisme de pince d'une peigneuse

Also Published As

Publication number Publication date
EP1620584A1 (fr) 2006-02-01
DE502004004887D1 (de) 2007-10-18
WO2004088013A1 (fr) 2004-10-14
JP2006522231A (ja) 2006-09-28
CN1768174A (zh) 2006-05-03
CN100480444C (zh) 2009-04-22

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