EP0620296B1 - Sliding guide for a carding machine with moving flats - Google Patents

Sliding guide for a carding machine with moving flats Download PDF

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Publication number
EP0620296B1
EP0620296B1 EP19940810198 EP94810198A EP0620296B1 EP 0620296 B1 EP0620296 B1 EP 0620296B1 EP 19940810198 EP19940810198 EP 19940810198 EP 94810198 A EP94810198 A EP 94810198A EP 0620296 B1 EP0620296 B1 EP 0620296B1
Authority
EP
European Patent Office
Prior art keywords
card
flat
sections
flexible
rod
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
EP19940810198
Other languages
German (de)
French (fr)
Other versions
EP0620296A1 (en
Inventor
Robert Demuth
Jürg Faas
Beat Naef
Peter Netzhammer
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
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Application filed by Maschinenfabrik Rieter AG filed Critical Maschinenfabrik Rieter AG
Publication of EP0620296A1 publication Critical patent/EP0620296A1/en
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Classifications

    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01GPRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G15/00Carding machines or accessories; Card clothing; Burr-crushing or removing arrangements associated with carding or other preliminary-treatment machines
    • D01G15/02Carding machines
    • D01G15/12Details
    • D01G15/28Supporting arrangements for carding elements; Arrangements for adjusting relative positions of carding elements
    • D01G15/30Bends
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01GPRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G15/00Carding machines or accessories; Card clothing; Burr-crushing or removing arrangements associated with carding or other preliminary-treatment machines
    • D01G15/02Carding machines
    • D01G15/12Details
    • D01G15/14Constructional features of carding elements, e.g. for facilitating attachment of card clothing
    • D01G15/24Flats or like members
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01GPRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G15/00Carding machines or accessories; Card clothing; Burr-crushing or removing arrangements associated with carding or other preliminary-treatment machines
    • D01G15/02Carding machines
    • D01G15/12Details
    • D01G15/28Supporting arrangements for carding elements; Arrangements for adjusting relative positions of carding elements

Definitions

  • This invention relates to the slide guide used in the revolving card is provided for guiding the flat bars in their working positions.
  • the flat bars exert frictional forces on an elongated plastic element. These frictional forces act on the one hand in the wear of the plastic element, on the other hand in the tensile force in the plastic element.
  • the problem of wear and tear can be caused by dirt depositing on the sliding surface be made worse.
  • the invention provides a revolving flat card that has two flexible arches Guide the ends of the flat bars in their working positions, wherein each flexible arch with a plastic element to form a sliding surface is provided, characterized in that each plastic element comprises parts, which together are the sliding guide for the flat bars form.
  • the arrangement can be made such that a flat bar simultaneously touched several of these sections while sliding over the arch.
  • the sections can be attached individually to the arch. Groups of Parts could, however, be formed or attached to a common carrier the carrier must then be attached to the arch.
  • the application of the flat bars to the arch must be carried out without destroying the sections take place in the inlet area. This can be done, for example, by a Inlet element is provided, which adjoins the arch.
  • the leadership but the flat bars can be so precise that the desired effect both without special training of the flat bars and without one additional guide element is achieved.
  • the sections in the inlet area but can be selected specifically to the forces generated when applying to resist.
  • FIG. 1 shows a revolving flat card according to DE-A-3835776 with a frame 10, Briseur 16, drum 17, customer 21 and Traveling cover set 19.
  • the traveling cover set 19 comprises one hundred and six Flat bars 29, of which forty-one in the Working position, two endless traction means 28 (e.g. Chains or timing belts), of which only one such agent in 1 is visible, and four pairs of deflection wheels 22,23,24,25, of which only one wheel of each pair is visible in Fig. 1.
  • the Wheels of the pair 25 are driven to the traction means in to move in the direction of arrow 30.
  • the traction means or their respective wheels form two movement paths in one each vertical plane.
  • the reference numerals 41 to 49 indicate a modular division of the surface of the drum according to DE-A-3835776. This division is for the present Invention without meaning and is not explained in detail.
  • Each flat bar 29 is at one end on one and attached at the other end to the other traction means 28 and stands perpendicular to both.
  • the rods 29 are therefore in operation moves along the paths when the traction means 28 by rotation the deflection wheels 25 moved along their own lengths become.
  • the rods 29 are fastened to the traction means 28 in such a way that the fastener (not shown) can be loosened to remove the rod from the traction device.
  • fastener not shown
  • the machine frame 10 comprises two side plates 32 (Fig.2) (side walls) which the bearing axis 31 for Pick up rotatable drum 17 and carrier parts 27 (Fig. 1) wear for the lid set 19.
  • the side shields are in Fig.2 shown without details, but are below 4 explained in more detail.
  • the preferred flat bar conveyor system generally corresponds the arrangement of FIG. 1 of DE-C-1115621, the is reproduced in Fig. 3 of this application.
  • the Deflection rollers 22, 23 (only roller 23 shown in Fig. 3) is with Teeth 20 formed.
  • the flat bars 29 are on both of them Ends on each flexible band 28A (e.g. a toothed belt) attached by means of clamps 29A.
  • the clamps 29A are teeth matching the gears 22, 23 educated.
  • the gear 23 at the entry point E (Fig. 1) becomes a flat rod on a sliding guide surface 52 (Fig. 3)
  • the belt distance is stretched between the wheels 22,23 to the flat bars to press against the sliding guide surface 52.
  • This flat bar conveyor system is not absolutely necessary, but is used for the explanations below are taken as an example. Minor changes in the clamps are shown below explained with reference to FIG. 4.
  • the outer surface of the drum 17 is with a set provided, the surfaces of the flat bars 29, which from the cover set 19 are directed outwards, likewise.
  • An essential one Part of the carding work is between a lid bar and the reel, while the baton moves away from the entry point E (Fig. 1) to an exit point A moves, this movement in the same direction as the rotation of the drum (in the same direction) or (as in FIG. 1 shown) opposite to the drum movement (opposite) can take place.
  • every sliding guide is on a respective one Flexible arch 34 formed.
  • the bow 34 has approaches 35 that by means of adjustable fastenings (not shown) on the respective Side plate 32 is mounted.
  • the flexible arch 34 can be attached more or less to be curved with respect to the axis of rotation of the drum 17 the design of the sliding guide in relation to the drum influence.
  • each flexible sheet is provided with a plastic element, which forms the actual sliding guide.
  • Fig 1 is this plastic element connected to the flexible bend by a fastening 54.
  • Each flat bar 29 has a "flat head" at each end provided, which both a slider 29B and the aforementioned Clamp 29A includes.
  • the slider 29B is with the Working body of the rod 29 formed from one piece, while the clamp 29A a first, with the slider formed from one piece, part and a second removable Clamping part includes.
  • the clamping part is through a Screw 27 (Fig.4) attached to the first part, the Belt 28A clamped between the first and second parts becomes.
  • the sliders 29B of the flat bars 29 in their working positions sit snugly on the plastic element 50 so that the Distance between the cover set and the drum set from the position of the plastic element 50 relative to the Flexible arch 34 is determined.
  • the flat bars 29 therefore practice Tensile forces on the plastic member 50 in the direction the movement of the flat bar 30. It is therefore only necessary the plastic element 50 at its attachment 54 distal end also to attach if with reversing the direction of movement of the flat bars 29 is expected must become.
  • no second attachment outside the working area G of the flat bars 29 provided, because such an additional fastening at most could lead to malfunctions if an extension of the Element 50 occurs.
  • the sliders 29B are usually with two sliding surfaces 56, 58 (Fig.4) provided, each about 1/3 of the width of the top bar make up and therefore full on the curved Slide surface 52 of the plastic element 50 sit when the Flat bar 29 compared to the flexible sheet 34 its working position has recorded.
  • the flat rod sliding surfaces 56.58 are usually flat at right angles to the two sides 60 of the slider ground, which each has an edge K on Leaves transition between these surfaces. This edge K can lead to problems at the entry point E, as shown below 11 is explained.
  • Figures 5 and 6 show a first variant of the plastic element according to this invention according to which this element of a plurality of Individual pieces is put together.
  • the figures only show an example of this design of the plastic element 100, after which each section 102 covers the flexible sheet 104, with angled side panels 106 in grooves 108 in reach into the side surfaces of the flexible sheet 104 to to hold the plastic element on the arch.
  • the unique pieces 102 can be pushed together and by end stops (not shown). But every piece can 102 (e.g. by pins 105, Fig. 6) fixed to the bow 104 become.
  • a slider from one piece 102 to the next each piece is preferably at its ends cut off diagonally and diagonally, both opposite the Longitudinal direction of the composite element, as well as opposite the transverse direction (perpendicular to the length of the plastic element).
  • the plastic element can not only in in the longitudinal direction Parts can be divided. For example, several relative thin strips are placed side by side to create a sliding surface to form for the flat bars. A possible execution is shown in Fig. 7, and the latter Figure also shows that such a relatively thin strip 110 not necessarily straight, but one can have a snake-like design. To this end each stiffener 110 can be inserted into a groove formed therefor be pressed into the flexible sheet 112.
  • This Variant has the advantage of a certain self-cleaning effect, because when scraping the surface through the flat bars the dirt and other particles from the plastic strip can be pushed onto the supporting flexible sheet.
  • the snake-like variant also has the advantage that the frictional forces no longer act as tensile forces in the impact elongated plastic stiffeners.
  • the one in plastic Deforming forces are generated directly on the side surfaces of the grooves receiving the plastic strips. In this case, additional fastening is unnecessary, when the curvature of the stiffener is sufficiently pronounced.
  • the plastic element can be used independently of Flexible bow precisely manufactured and precisely fixed on the bow become.
  • FIGS. 8 and 9 Another embodiment according to this invention is shown in FIGS. 8 and 9.
  • the flexible sheet 170 is provided with continuous recesses 172 below the upper part.
  • the upward-facing surface 174 of the flexible sheet is littered with "plastic buttons" 176.
  • the diameter of each Knöpfchens 76 is approximately equal to 1/4 to 1/3 of the width of the sheet 170th
  • the buttons 176 are each with a stem 178 (Fig. 9) provided, which is pressed into a hole 180 which between surface 174 and the corresponding recess 172 extends.
  • the stem 178 is such compared to Diameter of the hole 180 dimensioned that the button 176 is held firmly on the flexible arch.
  • buttons 176 The order buttons 176 on surface 174 (i.e. hers Scattering or distribution) must be selected such that each flat bar during its entire migration from the Entry to exit point (E to A) a stable posture can adhere to the arch.
  • the sliding surface 184 the glider from the flat bar should therefore be on each flexible sheet always at least two in the longitudinal direction of the arch touch distributed buttons 176.
  • the width of the Sliding surface 184 of the slider at least three buttons 176 can cover (see Fig. 10).
  • the slide surface 184 of the slider extends from the flat bar in this case preferably over the entire width of the Flat bar (Fig. 10). It is therefore not (as in conventional Flat bars - see Fig. 4) in two, in the Distributed direction of motion, divided sliding surface parts, but can be ground flat to the side surfaces of the flat bar become.
  • the arrangement shown in Fig. 9 comprises two rows of buttons 176, of which the buttons 176A in a row in close to one side of the flexible bow and the buttons 176B of the another row near the other side of the flexible sheet become.
  • This arrangement is only an example has been shown - other arrangements are quite conceivable and usable.
  • each button 176 increases with increasing Operating time worn out, so the bow occasionally must be “garnished” again. To do this, the permanent Button parts are peeled off (cut off), the cut stems 178 in the holes 180 stay. When reinserting button 176 (stems) in these holes, the old stems 178 are then pushed out and fall into the recesses 172, from which they can be easily removed.
  • FIG. 11 shows that the conditions in the entry point E are tricky.
  • Figure 11 is approaching a flat bar 182, in the direction of arrow P, the flexible sheet 170 with its sliding surface 184 in one opposite the button 176 unfavorable angular position.
  • the front edge K of the Flat rod will soon touch button 176E and the Peel off the upper part of this button.
  • FIGS. 8 to 11 has Problems with uniformity of management, effort of Fixing and risk of damage to the individual sections on. But it is not necessary to have so many individuals To use sections.
  • Figures 13 and 14 show a variant, after which elongated pieces ("rods") 190 on the arch 192 are provided.
  • the elongated bars 190 are compared to the length of the arch 192 short. To do this in part To compensate, they must be transverse to the longitudinal direction of the arch to be ordered. They preferably extend from one Side to side of the flexible sheet, although this is not of the function forth is necessary.
  • the angles W between the longitudinal direction RB of the flexible sheet 192 and the longitudinal direction RS each Rod 190 is preferably between 30 ° and 60 °.
  • the Arrangement is definitely made before a flat rod during the passage between the entry point and leaves the delivery point a rod 190, he already with the adjacent bar 190 in the direction of movement stands.
  • rods 190 in cross section "Bar-shaped" are, that is, they point two parallel surfaces and two converging surfaces on.
  • the rods 190 are inserted in grooves 194, which in the upper part of the flexible sheet 192 have been milled.
  • the Grooves 194 correspond to the parts of FIG Bars 190 that they have to take up.
  • the insertion of one Rod 190 in its groove 192 is sufficient to oppose rod 190 to attach the arch 192.
  • the risk of an "accident" at entry point E is significantly less with rods 190 according to FIG. 13 than with Button 176 according to Fig. 11.
  • the rods at the entry point can, however, be specially trained (e.g. from a harder material) to reduce the impact of shrinkage to resist a "misalignment" of a flat rod. Consequently can with this variant an inlet element at most be spared.
  • the plates 202 have only smaller distances a or b from each other or from the sides of the sheet 200.
  • circular plates 204 are on attached to the flexible arch, the diameter D of each plate 204 is only slightly smaller than the width of the flexible sheet 200.
  • the Distances A between adjacent plates 204 are such chosen that the sliding surface of a flat bar the gap can safely bridge between two plates without having to Sliding into that void to plunge.
  • the plates 202 and 204 can be attached to the arch 200 by means of fasteners are held, that shown in FIG. 9 Similar principle.
  • the plates could also go through clip-like brackets are attached, the arms of the Clip devices in suitable recesses in the side surfaces intervene of the bow.
  • 8 to 16 are the individual pieces (176, 190, 202, 204) individually on the bow attached. This is not essential to the invention. It could Groups of such pieces on a common support be formed or attached, the carrier even then must be attached to the bow.

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

Description

Diese Erfindung bezieht sich auf die Gleifführung, die in der Wanderdeckelkarde zur Führung der Deckelstäbe in ihren Arbeitsstellungen vorgesehen ist.This invention relates to the slide guide used in the revolving card is provided for guiding the flat bars in their working positions.

Stand der TechnikState of the art

Der nächstliegende Stand der Technik ist in DE-A-3907396 (US4955111) und DE-A-4108921 festgehalten worden. Gemäss diesen Vorschlägen wird jede Gleifführung durch ein auf den Flexibelbogen vorgesehenes Kunststoffelement gebildet.The closest prior art is in DE-A-3907396 (US4955111) and DE-A-4108921 has been recorded. According to these suggestions, everyone Sliding through a plastic element provided on the flexible sheet educated.

Die Deckelstäbe üben Reibkräfte auf ein längliches Kunststoffelement aus. Diese Reibkräfte wirken sich einerseits im Verschleiss des Kunststoffelementes, andererseits in der Zugkraft im Kunststoffelement aus.The flat bars exert frictional forces on an elongated plastic element. These frictional forces act on the one hand in the wear of the plastic element, on the other hand in the tensile force in the plastic element.

Das Verschleissproblem kann durch Ablagern von Schmutz auf der Gleiffläche verschlimmert werden.The problem of wear and tear can be caused by dirt depositing on the sliding surface be made worse.

Die Erfindung sieht eine Wanderdeckelkarde vor, die zwei Flexibelbögen zur Führung der Enden der Deckelstäbe in ihren Arbeitstellungen aufweist, wobei jeder Flexibelbogen mit einem Kunststoffelement zur Bildung einer Gleiffläche versehen ist, dadurch gekennzeichnet, dass jedes Kunststoffelement in Teilstücke umfaßt, die zusammen die Gleitführung für die Deckelstäbe bilden. Die Anordnung kann derart getroffen werden, dass ein Deckelstab gleichzeitig mehrere dieser Teilstücke beim Gleiten über den Bogen berührt.The invention provides a revolving flat card that has two flexible arches Guide the ends of the flat bars in their working positions, wherein each flexible arch with a plastic element to form a sliding surface is provided, characterized in that each plastic element comprises parts, which together are the sliding guide for the flat bars form. The arrangement can be made such that a flat bar simultaneously touched several of these sections while sliding over the arch.

Die Teilstücke können einzeln am Bogen befestigt werden. Gruppen von Teilstücken könnten aber an einem gemeinsamen Träger gebildet bzw. befestigt werden, wobei der Träger selbst dann am Bogen befestigt werden muss.The sections can be attached individually to the arch. Groups of Parts could, however, be formed or attached to a common carrier the carrier must then be attached to the arch.

Das Anlegen der Deckelstäbe am Bogen muss ohne Zerstörung der Teilstücke im Einlaufbereich erfolgen. Dies kann zum Beispiel dadurch erfolgen, dass ein Einlaufelement vorgesehen ist, welches sich am Bogen anschliesst. Die Führung der Deckelstäbe kann aber derart genau sein, dass die gewünschte Wirkung sowohl ohne spezielle Ausbildung der Deckelstäbe als auch ohne ein zusätzliches Führungselement erreicht wird. Die Teilstücke im Einlaufbereich können aber speziell ausgewählt werden, um die beim Anlegen erzeugten Kräfte zu widerstehen.The application of the flat bars to the arch must be carried out without destroying the sections take place in the inlet area. This can be done, for example, by a Inlet element is provided, which adjoins the arch. The leadership but the flat bars can be so precise that the desired effect both without special training of the flat bars and without one additional guide element is achieved. The sections in the inlet area but can be selected specifically to the forces generated when applying to resist.

Ausführungen der Erfindung werden nun anhand der Figuren als Beispiele näher erläutert:Embodiments of the invention will now be used as examples with reference to the figures explains:

Es zeigt (jeweils schematisch):

Fig. 1
eine Ansicht einer Wanderdeckelkarde, die beispielsweise nach DE-A-3835776 ausgebildet, ist,
Fig. 2
einen Plan der gleichen Karde, ohne den Wanderdeckelsatz,
Fig. 3
ein Detail des Wanderdeckelsatzes dieser Karde,
Fig. 4
der Flexibelbogen der Karde mit einem einzigen Deckelstab, der in einem grösseren Massstab gezeichnet ist als der Bogen selbst,
Fig. 5
ein Perspektivbild einer Variante eines Kunststoffelementes, das aus einzelnen Stücken zusammengesetzt werden kann,
Fig. 6
die Variante nach Fig. 5 im Plan betrachtet,
Fig. 7
eine Variante, wonach die Gleiffläche durch mehrere nebeneinander liegende Teilstücke gebildet ist,
Fig. 8
eine Seitenansicht eines Flexibelbogens mit einer Vielzahl von Teilstücken nach dieser Erfindung,
Fig. 9
ein Perspektivbild eines Teils des Bogens nach Fig. 8,
Fig. 10
eine Darstellung der Berührungsflächen der Deckelstäbe mit den Teilstücken in einer Karde nach Fig. 8,
Fig. 11
eine Darstellung der Verhältnisse an der Einlaufstelle bei einer Fehlstellung eines Deckelstabes in einer Anordnung nach Fig. 8,
Fig. 12
eine Darstellung der Verhältnisse an der Einlaufstelle bei der Verwendung einer Modifikation der Anordnung nach Fig. 11,
Fig. 13
einen Plan eines Flexibelbogens mit einer Vielzahl von Teilstücken nach einer weiteren Ausführung dieser Erfindung,
Fig. 14
eine Seitenansicht eines Teils des Bogens nach Fig. 13,
Fig. 15
einen Plan einer weiteren Ausführung, und
Fig. 16
einen Plan einer weiteren Ausführung.
It shows (each schematically):
Fig. 1
1 shows a view of a revolving flat card, which is designed, for example, according to DE-A-3835776,
Fig. 2
a plan of the same card, without the revolving cover set,
Fig. 3
a detail of the set of revolving lids of this card,
Fig. 4
the flexible bow of the card with a single flat bar drawn on a larger scale than the bow itself,
Fig. 5
a perspective view of a variant of a plastic element that can be assembled from individual pieces,
Fig. 6
5 considered in the plan,
Fig. 7
a variant according to which the sliding surface is formed by a plurality of sections lying side by side,
Fig. 8
a side view of a flexible sheet with a plurality of sections according to this invention,
Fig. 9
8 shows a perspective view of part of the arch according to FIG. 8,
Fig. 10
8 shows a representation of the contact surfaces of the flat bars with the sections in a card according to FIG. 8,
Fig. 11
8 shows a representation of the conditions at the entry point when a flat rod is incorrectly positioned in an arrangement according to FIG. 8,
Fig. 12
11 shows the conditions at the entry point when using a modification of the arrangement according to FIG. 11,
Fig. 13
3 shows a plan of a flexible sheet with a plurality of sections according to a further embodiment of this invention,
Fig. 14
13 shows a side view of part of the arch according to FIG. 13,
Fig. 15
a plan of further execution, and
Fig. 16
a plan of further execution.

Figur 1 zeigt eine Wanderdeckelkarde nach DE-A-3835776 mit einem Gestell 10, Briseur 16, Tambour 17, Abnehmer 21 und Wanderdeckelsatz 19. Der Wanderdeckelsatz 19 umfasst hundertsechs Deckelstäbe 29, wovon sich einundvierzig in der Arbeitsstellung befinden, zwei endlose Zugmittel 28 (z.B. Ketten oder Zahnriemen), wovon nur ein solches Mittel in Fig. 1 sichtbar ist, und vier Paar Umlenkräder 22,23,24,25, wovon nur ein Rad jedes Paares in Fig. 1 sichtbar ist. Die Räder des Paares 25 sind angetrieben, um die Zugmittel in der Richtung des Pfeils 30 zu bewegen. Die Zugmittel bzw. ihre jeweiligen Räder bilden zwei Bewegungspfade in je einer senkrechten Ebene. Die Bezugszeichen 41 bis 49 deuten auf eine modulare Aufteilung der Mantelfläche des Tambours gemäss DE-A-3835776. Diese Aufteilung ist für die vorliegende Erfindung ohne Bedeutung und wird nicht näher erklärt.FIG. 1 shows a revolving flat card according to DE-A-3835776 with a frame 10, Briseur 16, drum 17, customer 21 and Traveling cover set 19. The traveling cover set 19 comprises one hundred and six Flat bars 29, of which forty-one in the Working position, two endless traction means 28 (e.g. Chains or timing belts), of which only one such agent in 1 is visible, and four pairs of deflection wheels 22,23,24,25, of which only one wheel of each pair is visible in Fig. 1. The Wheels of the pair 25 are driven to the traction means in to move in the direction of arrow 30. The traction means or their respective wheels form two movement paths in one each vertical plane. The reference numerals 41 to 49 indicate a modular division of the surface of the drum according to DE-A-3835776. This division is for the present Invention without meaning and is not explained in detail.

Jeder Deckelstab 29 ist an einem Ende an den einen und am anderen Ende am anderen Zugmittel 28 befestigt und steht rechtwinklig zu beiden. Die Stäbe 29 werden daher im Betrieb den Pfaden entlang bewegt, wenn die Zugmittel 28 durch Drehung der Umlenkräder 25 ihren eigenen Längen entlang bewegt werden. Die Stäbe 29 sind derart am Zugmittel 28 befestigt, dass das Befestigungsmittel (nicht gezeigt) gelockert werden muss, um den Stab vom Zugmittel zu entfernen. Verschiedene solche Befestigungsmittel sind bekannt und werden hier nicht näher erläutert.Each flat bar 29 is at one end on one and attached at the other end to the other traction means 28 and stands perpendicular to both. The rods 29 are therefore in operation moves along the paths when the traction means 28 by rotation the deflection wheels 25 moved along their own lengths become. The rods 29 are fastened to the traction means 28 in such a way that the fastener (not shown) can be loosened to remove the rod from the traction device. Various such fasteners are known and are not here explained in more detail.

Das Maschinengestell 10 umfasst zwei Seitenschilde 32 (Fig.2) (Seitenwände), welche die Lagerachse 31 für den drehbaren Tambour 17 aufnehmen und Trägerpartien 27 (Fig.1) für den Deckelsatz 19 tragen. Die Seitenschilde sind in Fig.2 ohne Einzelheiten dargestellt, werden aber nachfolgend anhand der Fig. 4 näher erläutert.The machine frame 10 comprises two side plates 32 (Fig.2) (side walls) which the bearing axis 31 for Pick up rotatable drum 17 and carrier parts 27 (Fig. 1) wear for the lid set 19. The side shields are in Fig.2 shown without details, but are below 4 explained in more detail.

Das bevorzugte Deckelstabfördersystem entspricht im allgemeinen der Anordnung nach der Fig. 1 der DE-C-1115621, die in Fig. 3 dieser Anmeldung wiedergegeben wird. Die Umlenkrollen 22, 23 (nur Rolle 23 in Fig. 3 gezeigt) ist mit Zähnen 20 gebildet. Die Deckelstäbe 29 sind an ihren beiden Enden an je einem flexiblen Band 28A (z.B. einem Zahnriemen) mittels Klemmvorrichtungen 29A befestigt. Die Klemmvorrichtungen 29A sind als zu den Zahnrädern 22,23 passende Zähne gebildet. Beim Verlassen des Zahnrades 23 an der Einlaufstelle E (Fig. 1) wird ein Deckelstab an eine Gleitführungsfläche 52 (Fig. 3), angelegt, wobei die Riemenstrecke zwischen den Rädern 22,23 gespannt wird, um die Deckelstäbe gegen die Gleitführungsfläche 52 zu drücken. Dieses Deckelstabfördersystem ist nicht zwingend notwendig, wird aber bei den nachfolgenden Erklärungen als Beispiel angenommen. Kleinere Änderungen in den Klemmvorrichtungen werden nachfolgend anhand der Fig. 4 erklärt.The preferred flat bar conveyor system generally corresponds the arrangement of FIG. 1 of DE-C-1115621, the is reproduced in Fig. 3 of this application. The Deflection rollers 22, 23 (only roller 23 shown in Fig. 3) is with Teeth 20 formed. The flat bars 29 are on both of them Ends on each flexible band 28A (e.g. a toothed belt) attached by means of clamps 29A. The clamps 29A are teeth matching the gears 22, 23 educated. When leaving the gear 23 at the entry point E (Fig. 1) becomes a flat rod on a sliding guide surface 52 (Fig. 3), the belt distance is stretched between the wheels 22,23 to the flat bars to press against the sliding guide surface 52. This flat bar conveyor system is not absolutely necessary, but is used for the explanations below are taken as an example. Minor changes in the clamps are shown below explained with reference to FIG. 4.

Die Mantelfläche des Tambours 17 ist mit einer Garnitur versehen, die Flächen der Deckelstäbe 29, die aus dem Dekkelsatz 19 nach aussen gerichtet sind, ebenfalls. Ein wesentlicher Teil der Kardierarbeit wird zwischen einem Dekkelstab und dem Tambour geleistet, während der Stab sich von der Einlaufstelle E (Fig. 1) bis zu einer Auslaufstelle A bewegt, wobei diese Bewegung in der gleichen Richtung wie die Drehung des Tambours (gleichläufig) oder (wie in Fig. 1 gezeigt) der Tambourbewegung entgegengesetzt (gegenläufig) stattfinden kann.The outer surface of the drum 17 is with a set provided, the surfaces of the flat bars 29, which from the cover set 19 are directed outwards, likewise. An essential one Part of the carding work is between a lid bar and the reel, while the baton moves away from the entry point E (Fig. 1) to an exit point A moves, this movement in the same direction as the rotation of the drum (in the same direction) or (as in FIG. 1 shown) opposite to the drum movement (opposite) can take place.

Während der Bewegung zwischen der Einlauf- und der Auslaufstelle muss der Deckelstab (bzw. seine Garnitur) einen genauen Abstand dem Tambour gegenüber einhalten. Dieser Abstand wird nicht durch den Deckelsatz 19 selbst bestimmt, sondern durch die vorerwähnten Gleitführungen 52, die an den nach oben gerichteten Flächen der Seitenwände 32 vorgesehen sind. Jede Gleitführung kann genau gegenüber der Drehachse des Tambours gebildet (und sogar eingestellt) werden, wie nun anhand der Fig. 4 erklärt wird. During the movement between the entry and the exit point the flat rod (or its set) must have an exact Keep a distance from the drum. This distance is not determined by the lid set 19 itself, but by the aforementioned slide guides 52, which on the provided upward faces of the side walls 32 are. Each sliding guide can be exactly opposite the axis of rotation of the drum made (and even discontinued) like will now be explained with reference to FIG. 4.

In der Praxis ist jede Gleitführung an einem jeweiligen Flexibelbogen 34 gebildet. Der Bogen 34 hat Ansätze 35, die mittels einstellbarer Befestigungen (nicht gezeigt) am jeweiligen Seitenschild 32 montiert ist. Durch Einstellung der Befestigungen kann der Flexibelbogen 34 mehr oder weniger gegenüber der Drehachse des Tambours 17 gekrümmt werden, um die Gestaltung der Gleitführung gegenüber dem Tambour zu beeinflussen. Gemäss dem vorerwähnten Stand der Technik wird jeder Flexibelbogen mit einem Kunststoffelement versehen, welches die eigentliche Gleitführung bildet. In Fig 1 wird dieses Kunststoffelement durch eine Befestigung 54 mit dem Flexibelbogen verbunden.In practice, every sliding guide is on a respective one Flexible arch 34 formed. The bow 34 has approaches 35 that by means of adjustable fastenings (not shown) on the respective Side plate 32 is mounted. By setting the The flexible arch 34 can be attached more or less to be curved with respect to the axis of rotation of the drum 17 the design of the sliding guide in relation to the drum influence. According to the aforementioned prior art each flexible sheet is provided with a plastic element, which forms the actual sliding guide. In Fig 1 is this plastic element connected to the flexible bend by a fastening 54.

Jeder Deckelstab 29 ist an jedem Ende mit einem "Deckelkopf" versehen, der sowohl einen Gleiter 29B als auch die vorerwähnte Klemmvorrichtung 29A umfasst. Der Gleiter 29B ist mit dem Arbeitskörper des Stabes 29 aus einem Stück gebildet, während die Klemmvorrichtung 29A einen ersten, mit dem Gleiter aus einem Stück gebildeten, Teil und einen zweiten entfernbaren Klemmteil umfasst. Der Klemmteil ist durch eine Schraube 27 (Fig.4) an dem ersten Teil befestigt, wobei der Riemen 28A zwischen dem ersten und dem zweiten Teil geklemmt wird.Each flat bar 29 has a "flat head" at each end provided, which both a slider 29B and the aforementioned Clamp 29A includes. The slider 29B is with the Working body of the rod 29 formed from one piece, while the clamp 29A a first, with the slider formed from one piece, part and a second removable Clamping part includes. The clamping part is through a Screw 27 (Fig.4) attached to the first part, the Belt 28A clamped between the first and second parts becomes.

Die Gleiter 29B der Deckelstäbe 29 in ihren Arbeitsstellungen sitzen satt auf dem Kunststoffelement 50, so dass der Abstand zwischen der Deckelgarnitur und der Tambourgarnitur von der Stellung des Kunststoffelementes 50 gegenüber dem Flexibelbogen 34 bestimmt wird. Die Deckelstäbe 29 üben daher Zugkräfte auf das Kunststoffelement 50 in der Richtung der Deckelstabbewegung 30 aus. Es ist daher nur dann notwendig, das Kunststoffelement 50 an seinem von der Befestigung 54 entfernten Ende ebenfalls zu befestigen, wenn mit dem Umkehren der Bewegungsrichtung der Deckelstäbe 29 gerechnet werden muss. Vorzugsweise wird keine zweite Befestigung ausserhalb des Arbeitsbereiches G der Deckelstäbe 29 vorgesehen, weil eine solche Zusatzbefestigung allenfalls zu Störungen führen könnte, falls im Betrieb eine Längung des Elementes 50 eintritt.The sliders 29B of the flat bars 29 in their working positions sit snugly on the plastic element 50 so that the Distance between the cover set and the drum set from the position of the plastic element 50 relative to the Flexible arch 34 is determined. The flat bars 29 therefore practice Tensile forces on the plastic member 50 in the direction the movement of the flat bar 30. It is therefore only necessary the plastic element 50 at its attachment 54 distal end also to attach if with reversing the direction of movement of the flat bars 29 is expected must become. Preferably no second attachment outside the working area G of the flat bars 29 provided, because such an additional fastening at most Could lead to malfunctions if an extension of the Element 50 occurs.

Die Gleiter 29B sind normalerweise mit je zwei Gleitflächen 56, 58 (Fig.4) versehen, die je ca. 1/3 der Breite des Dekkelstabes ausmachen und daher satt auf der gekrümmten Gleitfläche 52 des Kunstoffelementes 50 sitzen, wenn der Deckelstab 29 gegenüber dem Flexibelbogen 34 seine Arbeitsstellung aufgenommen hat. Die Deckelstabgleitflächen 56,58 sind normalerweise plan rechtwinklig zu den zwei Seitenflächen 60 des Gleiters geschliffen, was je eine Kante K am Übergang zwischen diesen Flächen lässt. Diese Kante K kann an der Einlaufstelle E zu Problemen führen, wie nachfolgend anhand der Fig. 11 erläutert wird. The sliders 29B are usually with two sliding surfaces 56, 58 (Fig.4) provided, each about 1/3 of the width of the top bar make up and therefore full on the curved Slide surface 52 of the plastic element 50 sit when the Flat bar 29 compared to the flexible sheet 34 its working position has recorded. The flat rod sliding surfaces 56.58 are usually flat at right angles to the two sides 60 of the slider ground, which each has an edge K on Leaves transition between these surfaces. This edge K can lead to problems at the entry point E, as shown below 11 is explained.

Die Figuren 5 und 6 zeigen eine erste Variante des Kunststoffelementes nach dieser Erfindung wonach dieses Element aus einer Mehrzahl von Einzelstücken zusammengesetzt wird. Die Figuren zeigen nur ein Beispiel für diese Gestaltung des Kunststoffelementes 100, wonach jedes Teilstück 102 den Flexibelbogen 104 überdeckt, wobei abgewinkelte Seitenteile 106 in Nuten 108 in den Seitenflächen des Flexibelbogens 104 hineingreifen, um das Kunststoffelement am Bogen zu halten. Die Einzelstücke 102 können zusammengeschoben werden und durch Endanschläge (nicht gezeigt) gehalten werden. Es kann aber jedes Stück 102 (z.B. durch Stifte 105, Fig. 6) am Bogen 104 fixiert werden.Figures 5 and 6 show a first variant of the plastic element according to this invention according to which this element of a plurality of Individual pieces is put together. The figures only show an example of this design of the plastic element 100, after which each section 102 covers the flexible sheet 104, with angled side panels 106 in grooves 108 in reach into the side surfaces of the flexible sheet 104 to to hold the plastic element on the arch. The unique pieces 102 can be pushed together and by end stops (not shown). But every piece can 102 (e.g. by pins 105, Fig. 6) fixed to the bow 104 become.

Nachdem die Einzelstücke zusammengeschoben worden sind, bilden sie eine kontinuierliche Gleitfläche für die Gleiter der Deckelstäbe. Sie decken auch den oberen Teil des Bogens (oberhalb der Nuten 108) vollständig ab. Um den Uebergang eines Gleiters von einem Einzelstück 102 zum nächsten zu erleichtern, ist jedes Stück vorzugsweise an seinen Enden schräg abgeschnitten und zwar schräg, sowohl gegenüber der Längsrichtung des zusammengesetzten Elementes, als auch gegenüber der Querrichtung (rechtwinklig zur Länge des Kunststoffelementes).After the individual pieces have been pushed together, they form a continuous sliding surface for the gliders the flat bars. They also cover the upper part of the arch (above the grooves 108) completely. About the transition a slider from one piece 102 to the next each piece is preferably at its ends cut off diagonally and diagonally, both opposite the Longitudinal direction of the composite element, as well as opposite the transverse direction (perpendicular to the length of the plastic element).

Das Kunststoffelement kann nicht nur in der Längsrichtung in Teilstücke unterteilt werden. Es können z.B. mehrere relativ dünne Streifen nebeneinandergelegt werden, um eine Gleitfläche für die Deckelstäbe zu bilden. Eine mögliche Ausführung ist in der Fig. 7 gezeigt, und diese letztgenannte Figur zeigt auch, dass ein solch relativ dünner Steifen 110 nicht unbedingt gerade ausgestreckt wird, sondern eine schlangenartige Gestaltung aufweisen kann. Zu diesem Zweck kann jeder Steifen 110 in eine jeweils dafür gebildete Nute im Flexibelbogen 112 eingepresst werden. Diese Variante hat den Vorteil einer gewissen Selbstreinigungswirkung, da beim Schaben der Oberfläche durch die Deckelstäbe der Schmutz und andere Partikel vom Kunststoffstreifen auf den tragenden Flexibelbogen geschoben werden.The plastic element can not only in in the longitudinal direction Parts can be divided. For example, several relative thin strips are placed side by side to create a sliding surface to form for the flat bars. A possible execution is shown in Fig. 7, and the latter Figure also shows that such a relatively thin strip 110 not necessarily straight, but one can have a snake-like design. To this end each stiffener 110 can be inserted into a groove formed therefor be pressed into the flexible sheet 112. This Variant has the advantage of a certain self-cleaning effect, because when scraping the surface through the flat bars the dirt and other particles from the plastic strip can be pushed onto the supporting flexible sheet.

Die schlangenartige Variante weist auch den Vorteil auf, dass die Reibungskräfte sich nicht mehr als Zugkräfte in den länglichen Kunststoff Steifen auswirken. Die im Kunststoff erzeugten Verformungskräfte werden direkt an die Seitenflächen der die Kunststoff Steifen aufnehmenden Nuten abgegeben. Eine zusätzliche Befestigung ist in diesem Fall überflüssig, wenn die Krümmung des Steifens genügend ausgeprägt ist.The snake-like variant also has the advantage that the frictional forces no longer act as tensile forces in the impact elongated plastic stiffeners. The one in plastic Deforming forces are generated directly on the side surfaces of the grooves receiving the plastic strips. In this case, additional fastening is unnecessary, when the curvature of the stiffener is sufficiently pronounced.

In allen Fällen kann das Kunststoffelement unabhängig vom Flexibelbogen genau hergestellt und auf dem Bogen genau fixiert werden. In all cases, the plastic element can be used independently of Flexible bow precisely manufactured and precisely fixed on the bow become.

Eine weitere Ausführung gemäss dieser Erfindung ist in den Figuren 8 und 9 gezeigt. Der Flexibelbogen 170 ist mit durchgehenden Aussparungen 172 unterhalb der oberen Partie versehen. Die nach oben gerichtete Fläche 174 des Flexibelbogens ist mit "Kunststoffknöpfchen" 176 übersät. Der Durchmesser jedes Knöpfchens 76 ist ca. gleich 1/4 bis 1/3 der Breite des Bogens 170.Another embodiment according to this invention is shown in FIGS. 8 and 9. The flexible sheet 170 is provided with continuous recesses 172 below the upper part. The upward-facing surface 174 of the flexible sheet is littered with "plastic buttons" 176. The diameter of each Knöpfchens 76 is approximately equal to 1/4 to 1/3 of the width of the sheet 170th

Die Knöpfchen 176 sind je mit einem Stiel 178 (Fig. 9) versehen, der in einem Loch 180 eingepresst ist, das sich zwischen der Fläche 174 und der entsprechenden Aussparung 172 erstreckt. Der Stiel 178 ist derart im Vergleich zum Durchmesser des Loches 180 dimensioniert, dass das Knöpfchen 176 fest am Flexibelbogen gehalten wird.The buttons 176 are each with a stem 178 (Fig. 9) provided, which is pressed into a hole 180 which between surface 174 and the corresponding recess 172 extends. The stem 178 is such compared to Diameter of the hole 180 dimensioned that the button 176 is held firmly on the flexible arch.

Die vom Bogen 170 den Deckelstäben 182 (Fig. 10) angebotene Gleitfläche ist nicht mehr kontinuierlich sondern durch die "höchsten" Flächen GF der Knöpfchen 176 gebildet. Die Anordnung der Knöpfchen 176 auf der Fläche 174 (d.h. ihre Streuung bzw. Verteilung) muss derart gewählt werden, dass jeder Deckelstab während seiner ganzen Wanderung von der Einlauf- bis zur Auslaufstelle (E bis A) eine stabile Haltung gegenüber dem Bogen einhalten kann. Die Gleitfläche 184 des Gleiters vom Deckelstab sollte daher auf jedem Flexibelbogen stets mindestens zwei in der Längsrichtung vom Bogen verteilte Knöpfchen 176 berühren. Um abzusichern, dass stets zwei Knöpfchen 176 (auch beim Uebergang von einem Knöpfchen zu einem anderen) berührt werden, sollte die Breite der Gleitfläche 184 des Gleiters mindestens drei Knöpfchen 176 überdecken können (siehe Fig. 10).The one offered by the bow 170 to the flat bars 182 (FIG. 10) The sliding surface is no longer continuous but through the "Highest" areas GF of buttons 176 formed. The order buttons 176 on surface 174 (i.e. hers Scattering or distribution) must be selected such that each flat bar during its entire migration from the Entry to exit point (E to A) a stable posture can adhere to the arch. The sliding surface 184 the glider from the flat bar should therefore be on each flexible sheet always at least two in the longitudinal direction of the arch touch distributed buttons 176. To ensure that always two buttons 176 (also at the transition from one button to another) should be touched, the width of the Sliding surface 184 of the slider at least three buttons 176 can cover (see Fig. 10).

Die Gleitfläche 184 des Gleiters vom Deckelstab erstreckt sich in diesem Fall vorzugsweise über die ganze Breite des Deckelstabes (Fig. 10). Sie wird daher nicht (wie in konventionellen Deckelstäben - vergl. Fig. 4) in zwei, in der Bewegungsrichtung verteilten, Gleitflächenteile unterteilt, sondern kann plan zu den Seitenflächen des Deckelstabes geschliffen werden.The slide surface 184 of the slider extends from the flat bar in this case preferably over the entire width of the Flat bar (Fig. 10). It is therefore not (as in conventional Flat bars - see Fig. 4) in two, in the Distributed direction of motion, divided sliding surface parts, but can be ground flat to the side surfaces of the flat bar become.

Die in Fig. 9 dargestellte Anordnung umfasst zwei Reihen von Knöpfchen 176, wovon die Knöpfchen 176A einer Reihe in der Nähe einer Seite des Flexibelbogens und die Knöpfchen 176B der anderen Reihe in der Nähe der anderen Seite des Flexibelbogens befestigt werden. Diese Anordnung ist aber nur als Beispiel gezeigt worden - es sind durchaus andere Anordnungen denkbar und verwendbar.The arrangement shown in Fig. 9 comprises two rows of buttons 176, of which the buttons 176A in a row in close to one side of the flexible bow and the buttons 176B of the another row near the other side of the flexible sheet become. This arrangement is only an example has been shown - other arrangements are quite conceivable and usable.

Die Gleitflächenpartie GF jedes Knöpfchens 176 wird mit zunehmender Betriebszeit abgenutzt, so dass der Bogen gelegentlich neu "garniert" werden muss. Dazu können die bleibenden Knöpfchenpartien abgeschält (abgeschnitten) werden, wobei die abgeschnittenen Stiele 178 in den Löchern 180 bleiben. Beim Neueinsetzen vom Knöpfchen 176 (Stiele) in diese Löcher, werden die alten Stiele 178 dann herausgeschoben und fallen in die Aussparungen 172, woraus sie problemlos entfernt werden können.The sliding surface area GF of each button 176 increases with increasing Operating time worn out, so the bow occasionally must be "garnished" again. To do this, the permanent Button parts are peeled off (cut off), the cut stems 178 in the holes 180 stay. When reinserting button 176 (stems) in these holes, the old stems 178 are then pushed out and fall into the recesses 172, from which they can be easily removed.

Die Fig. 11 zeigt, dass die Verhältnisse in der Einlaufstelle E heikel sind. In Figur 11 nähert sich ein Deckelstab 182, in der Pfeilrichtung P, dem Flexibelbogen 170 mit seiner Gleitfläche 184 in einer gegenüber den Knöpfchen 176 ungünstigen Winkelstellung. Die vordere Kante K des Deckelstabes wird bald das Knöpfchen 176E berühren und den oberen Teil dieses Knöpfchens abschälen.Fig. 11 shows that the conditions in the entry point E are tricky. In Figure 11 is approaching a flat bar 182, in the direction of arrow P, the flexible sheet 170 with its sliding surface 184 in one opposite the button 176 unfavorable angular position. The front edge K of the Flat rod will soon touch button 176E and the Peel off the upper part of this button.

Die Fig. 12 zeigt deswegen ein Einlaufelement 186, welches die Winkelstellung des Deckelstabes (wenn notwendig) korrigiert, bevor die Gleitfläche 184 des Deckelstabes die Knöpfchen 176 berühren kann. 12 therefore shows an inlet element 186, which is the angular position of the Flat rod (if necessary) corrected before the sliding surface 184 of the flat bar can touch the buttons 176.

Die Anordnung nach den Figuren 8 bis 11 weist Probleme bezüglich Gleichmässigkeit der Führung, Aufwand der Befestigung und Risiko der Beschädigung der einzelnen Teilstücke auf. Es ist aber nicht nötig, so viele einzelne Teilstücke zu verwenden. Die Figuren 13 und 14 zeigen eine Variante, wonach längliche Stücke ("Stangen") 190 auf dem Bogen 192 vorgesehen sind. Die länglichen Stangen 190 sind gegenüber der Länge des Bogens 192 kurz. Um dies teilweise zu kompensieren, müssen sie quer zur Längsrichtung des Bogens angeordnet werden. Sie erstrecken sich vorzugsweise von einer Seite zur anderen Seite des Flexibelbogens, obwohl dies nicht von der Funktion her notwendig ist. Die Winkel W zwischen der Längsrichtung RB des Flexibelbogens 192 und der Längsrichtung RS jeder Stange 190, liegt vorzugsweise zwischen 30° und 60°. Die Anordnung ist auf jeden Fall derart getroffen, dass bevor ein Deckelstab beim Durchlauf zwischen der Einlaufstelle und der Auslaufstelle eine Stange 190 verlässt, er schon mit der in der Bewegungsrichtung benachbarten Stange 190 in Berührung steht.The arrangement according to FIGS. 8 to 11 has Problems with uniformity of management, effort of Fixing and risk of damage to the individual sections on. But it is not necessary to have so many individuals To use sections. Figures 13 and 14 show a variant, after which elongated pieces ("rods") 190 on the arch 192 are provided. The elongated bars 190 are compared to the length of the arch 192 short. To do this in part To compensate, they must be transverse to the longitudinal direction of the arch to be ordered. They preferably extend from one Side to side of the flexible sheet, although this is not of the function forth is necessary. The angles W between the longitudinal direction RB of the flexible sheet 192 and the longitudinal direction RS each Rod 190 is preferably between 30 ° and 60 °. The Arrangement is definitely made before a flat rod during the passage between the entry point and leaves the delivery point a rod 190, he already with the adjacent bar 190 in the direction of movement stands.

Die Fig. 14 zeigt, dass die Stangen 190 im Querschnitt "barrenförmig" (trapezförmig) sind, das heisst, sie weisen zwei parallele Flächen und zwei sich konvergierende Flächen auf. Die Stangen 190 sind in Nuten 194 eingesetzt, welche in der oberen Partie vom Flexibelbogen 192 eingefräst worden sind. Die Nuten 194 entsprechen in ihrem Querschnitt den Teilen der Stangen 190, die sie aufnehmen müssen. Das Einsetzen einer Stange 190 in ihre Nute 192 genügt, um die Stange 190 gegenüber dem Bogen 192 zu befestigen.14 shows that the rods 190 in cross section "Bar-shaped" (trapezoidal) are, that is, they point two parallel surfaces and two converging surfaces on. The rods 190 are inserted in grooves 194, which in the upper part of the flexible sheet 192 have been milled. The Grooves 194 correspond to the parts of FIG Bars 190 that they have to take up. The insertion of one Rod 190 in its groove 192 is sufficient to oppose rod 190 to attach the arch 192.

Das Risiko eines "Unfalles" an der Einlaufstelle E ist deutlich geringer mit Stangen 190 nach Fig. 13 als mit Knöpfchen 176 nach Fig. 11. Die Stangen an der Einlaufstelle können aber speziell ausgebildet werden, (z.B. aus einem härteren Material), um die Auswirkungen des Einlaufens bei einer "Fehlstellung" eines Deckelstabes zu widerstehen. Somit kann mit dieser Variante ein Einlaufelement allenfalls erspart werden.The risk of an "accident" at entry point E is significantly less with rods 190 according to FIG. 13 than with Button 176 according to Fig. 11. The rods at the entry point can, however, be specially trained (e.g. from a harder material) to reduce the impact of shrinkage to resist a "misalignment" of a flat rod. Consequently can with this variant an inlet element at most be spared.

Die Figuren 15 und 16 sollen bloss weitere Möglichkeiten des gleichen Prinzips darstellen, so dass auf eine ausführliche Beschreibung verzichtet werden kann. In beiden Fällen ist der Flexibelbogen mit 200 angedeutet.Figures 15 and 16 are only intended to further possibilities of represent the same principle, so that a detailed Description can be dispensed with. In both cases the flexible arch indicated with 200.

In der Variante nach Fig. 15 sind trapezförmige Kunststoffplatten 202 am Flexibelbogen 200 befestigt, wobei sich die parallelen Seiten der Platten 202 in der Längsrichtung des Bogens 200 erstrecken. Die Platten 202 weisen nur kleinere Abstände a bzw. b voneinander bzw. von den Seiten des Bogens 200 auf.15 are trapezoidal plastic plates 202 attached to the flexible sheet 200, the parallel Sides of the plates 202 in the longitudinal direction of the sheet 200 extend. The plates 202 have only smaller distances a or b from each other or from the sides of the sheet 200.

In der Variante nach Fig. 16 sind kreisrunde Platten 204 auf dem Flexibelbogen befestigt, wobei die Durchmesser D jeder Platte 204 nur knapp kleiner als die Breite des Flexibelbogens 200 ist. Die Abstände A zwischen benachbarten Platten 204 sind derart gewählt, dass die Gleitfläche eines Deckelstabes die Lücke zwischen zwei Platten sicher überbrücken kann, ohne beim Gleiten in diese Lücke zu stürzen.In the variant according to FIG. 16, circular plates 204 are on attached to the flexible arch, the diameter D of each plate 204 is only slightly smaller than the width of the flexible sheet 200. The Distances A between adjacent plates 204 are such chosen that the sliding surface of a flat bar the gap can safely bridge between two plates without having to Sliding into that void to plunge.

Die Platten 202 bzw. 204 können am Bogen 200 mittels Befestigungen gehalten werden, die dem in der Fig. 9 dargestellten Prinzip ähneln. Die Platten könnten aber auch durch klipsartige Halterungen befestigt werden, wobei die Arme der Klipsvorrichtungen in geeignete Aussparungen in den Seitenflächen des Bogens eingreifen.The plates 202 and 204 can be attached to the arch 200 by means of fasteners are held, that shown in FIG. 9 Similar principle. The plates could also go through clip-like brackets are attached, the arms of the Clip devices in suitable recesses in the side surfaces intervene of the bow.

Es wird klar sein, dass es nicht notwendig ist, Entlastungsmittel vorzusehen, welche Zugkräfte von den Kunststoffelementen an den Bogen übertragen. Ein weiterer Vorteil aller Ausführungen dieser Erfindung ist die Selbstreinigungswirkung. Schmutz, der auf die Gleitflächen gerät, wird durch die Deckelstäbe abgeschält und fällt auf den Flexibelbogen, von wo er durch gelegentliches Putzen entfernt werden kann.It will be clear that there is no need for relief means to provide what tensile forces from the plastic elements transferred to the bow. Another advantage All embodiments of this invention is the self-cleaning effect. Dirt that gets on the sliding surfaces peeled off by the flat bars and falls on the flexible sheet, from where it can be removed by occasional cleaning.

In den in Fig. 8 bis 16 dargestellten Ausführungen sind die einzelnen Stücke (176, 190, 202, 204) einzeln am Bogen befestigt. Dies ist nicht erfindungswesentlich. Es könnten Gruppen von solchen Stücken an einem gemeinsamen Träger gebildet bzw. befestigt werden, wobei der Träger selbst dann am Bogen befestigt werden muss.8 to 16 are the individual pieces (176, 190, 202, 204) individually on the bow attached. This is not essential to the invention. It could Groups of such pieces on a common support be formed or attached, the carrier even then must be attached to the bow.

Claims (14)

  1. A revolving flat card with two flexible bends (104; 112; 170; 192; 200) for guiding the ends of the flat rods (29) in their working positions, with each flexible bend being provided with a plastic element for the purpose of forming a sliding surface for the flat rods, characterized in that each plastic element comprises sections (100; 110; 176; 190; 202; 204) which jointly form the sliding guide for the flat rods (182).
  2. A card as claimed in claim 1, characterized in that the sections (100; 110; 176; 190; 202; 204) are fastened individually to the flexible bends.
  3. A card as claimed in claim 2, characterized in that each section (190) is connected in a positive-locking manner with one of the flexible bends (192).
  4. A card as claimed in claim 3, characterized in that each section (190) is connected over its entire length with a flexible bend (192).
  5. A card as claimed in claim 1, characterized in that sections are formed on or fastened to a common carrier, with the carrier being fastened to one of the flexible bends.
  6. A card as claimed in one of the claims 1 to 5, characterized in that the arrangement is made such that a flat rod simultaneously touches a plurality of the sections while sliding along the guide.
  7. A card as claimed in one of the claims 1 to 6, characterized in that a run-in element (186) is provided at the run-in location in order to determine the angular position of a flat rod during the first contact with the sections.
  8. A card as claimed in one of the claims 1 to 7, characterized in that each section (190) is arranged as a longitudinal rod (190) which is arranged transversally to the longitudinal direction (RB) of the flexible bend (192).
  9. A card as claimed in claim 8, characterized in that each rod (190) extends from one side to the other side of the flexible bend (192).
  10. A card as claimed in one of the claims 8 and 9, characterized in that the angle (W) between the longitudinal direction (RB) of the flexible bend (192) and the longitudinal direction (RS) of each rod (190) is between 30° and 60°.
  11. A card as claimed in one of the claims 8 to 10, characterized in that each rod (190) is trapezoid in the cross section.
  12. A card as claimed in one of the claims 1 to 7, characterized in that the sections (202) are formed as plates which are provided with distances (a) from one another.
  13. A card as claimed in one of the claims 8 to 12, characterized in that the sections (100; 110; 176; 190; 202; 204) are arranged in such a way that the dirt reaching the sliding surfaces of the sections is peeled off by the flat rods (29).
  14. A card as claimed in claim 13, characterized in that peeled-off dirt falls onto the flexible bend.
EP19940810198 1993-04-16 1994-04-05 Sliding guide for a carding machine with moving flats Expired - Lifetime EP0620296B1 (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
CH1150/93 1993-04-16
CH115693 1993-04-16
CH115093 1993-04-16
CH115693 1993-04-16
CH115093 1993-04-16
CH1156/93 1993-04-16

Publications (2)

Publication Number Publication Date
EP0620296A1 EP0620296A1 (en) 1994-10-19
EP0620296B1 true EP0620296B1 (en) 1999-06-09

Family

ID=25686813

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19940810198 Expired - Lifetime EP0620296B1 (en) 1993-04-16 1994-04-05 Sliding guide for a carding machine with moving flats

Country Status (2)

Country Link
EP (1) EP0620296B1 (en)
DE (1) DE59408382D1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6842947B2 (en) 2002-04-11 2005-01-18 Maschinenfabrik Rieter Ag Flat end head made of polymer material

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19534617A1 (en) * 1994-10-24 1996-04-25 Rieter Ag Maschf Drive for flats on card

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB344220A (en) * 1900-01-01
JPH01239119A (en) * 1988-03-16 1989-09-25 Kurabo Ind Ltd Carding machine and flexible bend
DE4108921C2 (en) * 1991-03-19 2001-03-01 Truetzschler Gmbh & Co Kg Device on a card with a moving lid made of flat bars provided with clothing
GB9120249D0 (en) * 1991-09-23 1991-11-06 Carding Spec Canada Setting device for a carding engine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6842947B2 (en) 2002-04-11 2005-01-18 Maschinenfabrik Rieter Ag Flat end head made of polymer material
US7055221B2 (en) 2002-04-11 2006-06-06 Maschinenfabrik Rieter Ag Flat end head made of polymer material

Also Published As

Publication number Publication date
DE59408382D1 (en) 1999-07-15
EP0620296A1 (en) 1994-10-19

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