EP0567747B1 - Flatbar for a carding machine - Google Patents

Flatbar for a carding machine Download PDF

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Publication number
EP0567747B1
EP0567747B1 EP93103971A EP93103971A EP0567747B1 EP 0567747 B1 EP0567747 B1 EP 0567747B1 EP 93103971 A EP93103971 A EP 93103971A EP 93103971 A EP93103971 A EP 93103971A EP 0567747 B1 EP0567747 B1 EP 0567747B1
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EP
European Patent Office
Prior art keywords
top bar
card top
bar according
elements
card
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
EP93103971A
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German (de)
French (fr)
Other versions
EP0567747A1 (en
Inventor
Guido Spix
Andreas Dipl.-Ing. Ebenhöh
Hermann Trützschler
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.)
Truetzschler GmbH and Co KG
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Truetzschler GmbH and Co KG
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Application filed by Truetzschler GmbH and Co KG filed Critical Truetzschler GmbH and Co KG
Publication of EP0567747A1 publication Critical patent/EP0567747A1/en
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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
    • D01G15/00—Carding machines or accessories; Card clothing; Burr-crushing or removing arrangements associated with carding or other preliminary-treatment machines
    • D01G15/02—Carding machines
    • D01G15/12—Details
    • D01G15/14—Constructional features of carding elements, e.g. for facilitating attachment of card clothing
    • D01G15/24—Flats or like members
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G15/00—Carding machines or accessories; Card clothing; Burr-crushing or removing arrangements associated with carding or other preliminary-treatment machines
    • D01G15/02—Carding machines
    • D01G15/08—Carding machines with flats or like members or endless card sheets operating in association with a main cylinder

Definitions

  • the invention relates to a flat rod for a card according to the preamble of patent claim 1.
  • a flat bar as part of a revolving lid, there is an internally hollow supporting body made of extruded aluminum, the hollow space being penetrated in the longitudinal direction by a steel rod.
  • a block-shaped support element which is fixed by a screw, is pushed onto the two ends of the rod protruding from the cavity.
  • the screw is axially engaged with a thread at the end of the rod.
  • the two end head parts slide on the fixed sliding guides of the card.
  • a lid chain is arranged between the end face of the support body and the block-shaped end head part, the links of which are penetrated by the ends of the rod.
  • the flat chain pulls the flat bars over the sliding guides and ensures that the end head parts are pressed onto the sliding guides.
  • the flat bar is complex in terms of construction and assembly.
  • the production of the block-shaped support elements is complicated.
  • Another disadvantage is that considerable friction losses occur between the block-shaped end head parts and the sliding guide.
  • the cover chain is elongated, becomes contaminated with dust and fiber fly, and the chain links need to be serviced with lubricants, i. H. overall, it is constructive and complex in terms of assembly and operationally disadvantageous.
  • the covers clamp an endless flexible band by means of a clamping plate and a screw.
  • the screw has the task of connecting the cover to the clamping plate.
  • the function of the clamping plate is to guide the cover on the sliding surface of the flexible sheet. Fastening the clamping plate on the cover using an additional fastening element is constructive and complex in terms of assembly.
  • On the lid for clutter according to DE-C-384 195 is by a rivet attached to the ends of a piece that slides with a surface on the cover slide.
  • a cover head is present at both ends of the one-piece flat rod, which slides with its lower surfaces on the sliding guide.
  • a flat bar known from US-A-4 827 573 comprises a steel tube drawn through a profile shape. At both ends of the flat bar there are massive head pieces, on which holding elements for attaching a drive belt are attached. These head pieces are connected to the flat rod either by welding or with rivets or screws so that they can be replaced when they become unusable due to wear. It has been found that in some cases the welded connection leads to tension in the flat rod, and then the entire flat rod has to be replaced. The same also applies to the screw and rivet connection, i.e. H. the connecting force to be used (screw rotation or pressure when riveting) must firstly remain constant and constant for all flat bars within a certain tolerance range in order to avoid excessive compressive stresses (i.e.
  • the known flat bar has parallel and then converging side walls down to a certain height.
  • the end head part consists of three elements, the head piece and the two-part holding element, which are arranged axially with respect to the support body. Only the head piece slides on the slide guide, while the holding elements and the drive element are outside the slide guide.
  • the disadvantage here is that the drive element acting outside the sliding guide exerts an undesirable lever effect and thus a bending moment on the head piece and on the support body.
  • the head piece does not slide dimensionally with the sliding guide in this way, which can lead to disruptive canting.
  • the steel tube has a high specific weight, so that the flat rod is too heavy for the drive, which is particularly important given the large number of flat rods.
  • the replacement of the worn head pieces is complex in terms of assembly, since the welded or riveted connections of the head pieces have to be loosened on the supporting body and must be reattached after the replacement.
  • the card can only be repaired when the card is at a standstill, which leads to considerable malfunctions and production losses. This document forms the preamble of the first claim.
  • the invention is based on the object to provide a flat rod of the type described above, which avoids the disadvantages mentioned, which is particularly simple in terms of construction and assembly, and in which the support element (end head part) slides on the sliding guide of the card in a dimensionally stable and low-friction manner.
  • the drive element presses the element directly from above onto the sliding guide, so that undesirable bending moments on the element and on the supporting body are avoided and dimensionally accurate sliding of the element on the sliding guide is achieved.
  • the design of the supporting body from a light metal extruded profile is of particular structural, functional and economic advantage. Manufacture and assembly of the support body are considerably simplified and, in addition, lower driving forces are required for the propulsion because of the low specific weight. Because at least the sliding area of the element consists of a wear-resistant material, a significantly increased service life is achieved. Disruptive business interruptions and production losses are avoided.
  • the element comprises both the sliding area and the fastening area results in a very simple construction of the end head parts.
  • the assembly of the flat rod is simplified, which improves compliance with tolerances, i.e. dimensional accuracy.
  • this construction enables the selection from a large number of material pairings which, compared to the prior art, leads to a reduction in friction and thus to a longer service life.
  • the element is advantageously in one piece.
  • the element is expediently in direct engagement with the supporting body.
  • the element preferably engages with the supporting body in the region of the end face via an auxiliary carrier known per se.
  • the element is advantageously permanently connected to the subcarrier.
  • Each end head part expediently has two elements. This reduces its tendency to tip over and the sliding friction.
  • the sliding area of the element is advantageously made essentially linear.
  • the sliding area is preferably designed as a sliding surface.
  • the fastening area is expediently a cylinder. This provides an adaptation to the curved cover deflection guides without a chamfer or the like being necessary.
  • Commercially available hardened and ground steel needles allow the flat rod to be manufactured economically. The steps of cutting, drilling and inserting the pins make the flat rod particularly easy to manufacture.
  • the fastening area is advantageously a polygon.
  • the sliding area of the element preferably consists of a wear-resistant material.
  • the elements are expediently fastened in the end face of the foot part of the hollow extruded profile.
  • the elements pins made of hardened steel or the like are advantageous.
  • the sliding surface of the elements is preferably ground, finely ground and / or polished.
  • the elements are expediently fastened with their fastening region in recesses in the supporting body.
  • the elements with their fastening area are advantageously fastened in a bore in the end face of the supporting body.
  • the lower limit of the elements is preferably at a distance a above the foot surface of the support body.
  • the elements are expediently arranged in the working direction D at an angle alpha with respect to the longitudinal axis of the support body in such a way that their sliding regions point opposite to the working direction with respect to their fastening regions.
  • the support body is advantageously an extruded profile made of a light metal, for. As aluminum, or a light metal alloy.
  • a specifically light material e.g. B. aluminum
  • the support body can be manufactured in a simple manner by cutting to length a commercially available extruded profile.
  • Aluminum allows the production of a light flat bar.
  • the extruded profile is preferably a hollow profile. In this way, the deflection of the support body and thus of the flat bar is reduced over the width of the card. In addition, aluminum is saved through the inner cavity, so that the supporting body is more economical and also easier to manufacture.
  • the cross section of the recesses is expediently circular.
  • a stiffener is preferably arranged in the recesses between the elements.
  • the cross section of the recesses is advantageously polygonal.
  • the stiffening is expediently a steel profile.
  • the end head parts of the flat rod have low-wear, low-friction and dimensionally precise sliding surfaces.
  • the use of a flexible belt enables the drive element to have a constant length; the flexible belt is maintenance-free, structurally simple and allows the traveling cover to be easily installed.
  • a connecting element is advantageously in engagement with the elements and with the flexible belt.
  • the element expediently engages the flexible strap indirectly.
  • the connecting element is preferably fastened with one end in or on the end face of the supporting body.
  • the elements advantageously have a distance between their free end faces and the connecting element.
  • the connecting elements, bristles, brushes, elastic wiping elements or the like expediently engage the sliding guide in a cleaning manner.
  • the upper region of the foot part is preferably arranged at an acute angle alpha to the vertical.
  • the areas of the elements which remain free at the top advantageously engage a support element when the flat bars are returned.
  • the support body and the end head parts expediently form at least three assembled components.
  • the flexible straps preferably engage directly with the wear-resistant end head parts.
  • the elements are advantageously fastened in or on the end head parts.
  • the elements expediently display a wear-resistant coating, plating, which is located on their sliding area.
  • the elements preferably engage directly with the flexible belt.
  • the lower areas of the elements advantageously slide on the slide guides.
  • the attachment of the connecting element expediently engages with the recess.
  • the connecting element preferably has a through bore into which a shoulder of the toothed belt engages.
  • the connecting element is advantageously fastened to the elements, e.g. B. clamped or glued.
  • the elements are expediently connected to the recesses by a press fit.
  • the elements are preferably connected to the recesses by resilient clamping.
  • the elements are advantageously connected to the recesses by gluing.
  • the flatness of the sliding surfaces of a flat bar is expediently achieved by grinding the sliding areas after connecting the elements to the carrier.
  • a particularly preferred embodiment of the invention provides that the end head parts are cast parts, in particular the end head parts are injection molded parts.
  • the end head parts are injection molded parts.
  • gray cast iron preferably in the form of fine-foot parts
  • cast steel can be used as the material for this.
  • plastic-encapsulated elements in which both the fastening area and the sliding area are made of metal. All three possibilities have in common that the finished end part has the shape of a plug that can be easily inserted into the corresponding recesses in the end face of the support body.
  • Fig. 1 shows a card, e.g. B. Trützschler EXACTACARD DK 760, with feed roller 1, dining table 2, licker-in 3, drum 4, customer 5, doctor roller 6, squeeze rollers 7, 8, fleece guide element 9, pile funnel 10, take-off rollers 11, 12 and revolving cover 13.
  • the direction of rotation (arrows A or B) of the front and rear cover deflection roller 15a, 15b (toothed belt wheels) is opposite to the direction of rotation (arrow C) of the drum 4.
  • the flat bars 14 ', 14''... 14n are pulled by the toothed belt 16 in the direction of arrow D over the slide guide 17.
  • the flat bars 14 are returned in the direction of the arrow E.
  • FIG. 2 shows in detail the flat bars on a revolving lid according to FIG. 1, in which the endless flexible belt 16 for propelling the flat bars 14 ', 14' ', 14' '' ... 14n is present and in which the flat bars 14 with the underside 14b of their end head parts (cover heads) 14a (ends of the cover rods 14) slide on the sliding guide 17 (flexible bend).
  • the toothed belt wheel 15b which has teeth 15 ', rotates in the direction of the arrow B, engages with the teeth 26a, 26b ... 26n on the inside 16b of the toothed belt 16 (see FIG. 8) and pulls the lower run 16c of the toothed belt 16 in the direction of arrow D forward.
  • the outside 16a of the toothed belt 16 is in a form-fitting engagement with the side 14c of the end head part 14a opposite the clothing.
  • the belt 16 presses the end head parts 14a onto the sliding guide 17.
  • the toothed belt wheel 15b is opposite a curved guide and holding element 18, by means of which the flat bars 14 are held during the deflection.
  • the toothed belt wheel 15a (see FIG. 1) rotates in the direction of the arrow A, engages with the teeth 26a, 26b ... 26n on the inside 16b of the toothed belt 16 and pulls the upper run 16d of the toothed belt 16 in the direction of Arrow E.
  • the flat bars 14 and the end head parts 14a lie loosely on the outside 16a of the upper run 16d of the belt 16.
  • the toothed belt wheel 15a is opposite a curved guide and holding element 19, by means of which the flat bars 14 are held during the deflection.
  • the upper run 16d is supported by two support rollers 20, 21 and by a flat support 22.
  • the support rollers 20, 21 are designed as toothed belt wheels, which are in engagement with the inside 16b of the belt 16.
  • the flat bar 14 has a supporting body 14d with a clothing receiving part 14e and a back part 14f.
  • the support body 14d is an extruded profile made of aluminum, which has a cavity 14g on the inside.
  • Each flat rod has two end head parts 14a 'and 14a "(see FIG. 4c).
  • the end head part 14a' and 14a" each consist of two pins 23 ', 23 "and a connecting element 24.
  • the pins 23 are with their one end is fastened in a bore 25 in the end face 14h of the support body 14d, the lower limit of the pins 23 is located at a distance a above the foot surface 14e of the support body 14d.
  • the pins 23 (according to FIGS.
  • the connecting element 24 has two half-open recesses 24 ', 24 "on one side, which are positively engaged with the pins 23 ', 23 ".
  • the connecting element 24 is made of plastic and is fastened, for example clamped, to the pins 23', 23" ".
  • the other side of the connecting element 24 stands with the side 16a of the toothed belt 16 in engagement.
  • the connecting element 24 has a through bore 24 '' 'in the middle, into which a shoulder 25a of the toothed belt 16 engages.
  • the connecting element 24 has on its one end face a shoulder 44, for. B. is attached to a dowel in a bore 26 in the end face 14h of the support body 14d.
  • the connecting element 24 is arranged at a distance b from the foot surface 14e, where a is less than b.
  • the sliding guides 17 can be made of a so-called self-lubricating plastic, for. B. consist of a high molecular low-pressure polyethylene, so that a maintenance-free traveling cover career is created. Another material with low wear, long service life, good sliding properties and low friction losses can also be used for the sliding guide 17.
  • the sliding guide 17 can consist of a metallic material. The surface of the slide guide 17 is smooth, as is the surface of the pins 23.
  • the flat rod 14 consists of a supporting body 14d and two end head parts 14a 'and 14a ", ie of three assembled components, ie the flat rod 14 is in several pieces.
  • the end head parts 14a', 14a" in turn each consist of two pins 23 ', 23 '' and a connecting part 24, i.e. H. from three individual parts.
  • the connecting element 24 extends over the entire length above the pins 23 ′, 23 ′′.
  • a short pin 23 ′′ ′′ is additionally provided, which engages with the bearing surface 22 during the return.
  • Fig. 6 essentially corresponds to Fig. 5; instead of the pin 23 '' 'there is a bracket 27 made of hardened steel.
  • the connecting element 24 has bristles 28 on its underside, which are in cleaning engagement with the sliding guide 17.
  • the bristles 28 are e.g. B. 1 mm longer than the distance b.
  • the bristles 28 clean the sliding guide 17 from sand, chips and.
  • a cleaning roller (not shown) may be present on the return side.
  • Fig. 8 shows the belt 16, the lugs 25a, 25b ... 25n, z. B. made of rubber.
  • the approaches 25a to 25n engage in operation in the corresponding bores 24 '''in the connecting elements 24 from above.
  • On the inside 16b of the belt 16 there are teeth 26a ... 26n.
  • the belt 16 is reinforced in the longitudinal direction by internal tensile and flexible steel wires 33.
  • Fig. 11 shows a flat rod 14, in which the support body 14d and the end head parts 14a '(or 14a' ') in one piece, for. B. are made of extruded aluminum.
  • the surface 14c has a continuous bore 29 for receiving the shoulders 25 of the toothed belt 16.
  • Wear-resistant claddings 30 ′, 30 ′′, which engage with the sliding guide 17, are firmly attached to the side of the end head parts 14a ′ assigned to the foot surface 14e.
  • An endlessly rotating toothed belt 16 is present on both sides of the revolving cover 13 across the width of the card, i. H. the revolving cover 14 has two toothed belts 16.
  • the material pairing between the support element and the sliding guide is selected so that a low-friction sliding movement takes place, that little wear occurs and that the device is low-maintenance or maintenance-free during operation.
  • the pin 23 has a rectangular surface 23 V with width d and length e, the z. B. is generated by grinding.
  • the surface 23 V slides on the slide guide 17. In this way, the surface pressure is reduced.
  • the gap between the convex lateral surface of the pin 23 and the sliding guide 17 is reduced, in which contaminants can collect and settle.
  • the pins 23 I to 23 IV are arranged in the working direction D at an angle ⁇ with respect to the longitudinal axis of the support body 14d in such a way that the free end of the pins points counter to the working direction D. This will Contaminants are discharged to the outside through the pins 23.
  • the part of the pins 23 arranged within the bore 25 (cf. FIG. 4b) can be aligned in the direction of the longitudinal axis of the support body 14d, ie the pin 23 is angled.
  • Fig. 12 shows a perspective view of the support body 14d of a flat bar as an extruded profile.
  • the recesses 41 ', 41' 'and 43 are also extruded and extend parallel over the entire length of the support body 14d.
  • the recesses 41 'and 41' ' serve to receive the elements 23.
  • the recess 43 serves to receive the extension 44 (see FIG. 14) on the connecting element 24 or the element 23' ''.
  • the recesses 41 ', 42' 'and 43 are open to the outside via the longitudinal slots 42.
  • the side 14c opposite the underside 14b of the support body 14d extends at an acute angle with respect to the underside 14b in order to facilitate the application and fastening of the gauze (not shown).
  • Fig. 14 shows the connecting element 24 with the projection 44 which is pressed into the recess 43.
  • the guides 24 'and 24' '' clamp on the pins 23 ', 23 ".
  • 15a shows an alternative embodiment.
  • 15b shows the toothed belt 16 with the recesses 45 '.
  • the fastening area consists of two plugs 40 ′′, 40 ′′ ′′, which, like the driver 45 ′, are integral parts of the end head part 14a.
  • FIG. 16b differs from FIG. 16a in that, instead of the driver 45 ′′ in the end head part 14a, a bore 24 ′′ ′′ is arranged, which serves to receive the shoulders 25 of the toothed belt 16.
  • the fastening area 40 ' is designed as a flat bar. The entire construction of the end head 14a is cast.
  • FIG. 17a shows the support body 14d associated with the support body 14a according to FIG. 16a, in whose recesses 41 ', 41 ", the plugs of the end head part 14a are inserted.
  • FIG. 17b presents the analog version of the support body 14d, which is intended for receiving an end head part 14a according to FIG. 16b.
  • the fastening area 40 'of the end head part 14a according to FIG. 16b is inserted into the recess 40a of the support body 14d which serves for fastening.
  • the recess 40a of the support body 14d extends over the entire length of the support body 14d and was also produced during the extrusion.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Conveying Record Carriers (AREA)
  • Chain Conveyers (AREA)
  • Vehicle Step Arrangements And Article Storage (AREA)
  • Belt Conveyors (AREA)
  • Fishing Rods (AREA)

Description

Die Erfindung betrifft einen Deckelstab für eine Karde nach dem Oberbegriff des Patentanspruchs 1.The invention relates to a flat rod for a card according to the preamble of patent claim 1.

Bei einem bekannten Deckelstab als Teil eines Wanderdeckels ist ein innen hohler Tragkörper aus extrudiertem Aluminium vorhanden, wobei der Hohlraum in Längsrichtung von einer Stange aus Stahl durchsetzt ist. Auf die beiden aus dem Hohlraum ragenden Enden der Stange ist als Endkopfteil jeweils ein blockförmiges Auflageelement aufgeschoben, das durch eine Schraube fixiert ist. Die Schraube steht axial mit einem Gewinde am Ende der Stange in Eingriff. Die beiden Endkopfteile gleiten auf den ortsfesten Gleitführungen der Karde. Auf beiden Seiten der Deckelstäbe ist jeweils zwischen der Stirnfläche des Tragkörpers und dem blockförmigen Endkopfteil eine Deckelkette angeordnet, deren Glieder von den Enden der Stange durchsetzt sind. Die Deckelkette zieht die Deckelstäbe über die Gleitführungen und sorgt für den Andruck der Endkopfteile auf die Gleitführungen. Der Deckelstab ist im Hinblick auf Konstruktion und Montage aufwendig. Insbesondere ist die Fertigung der blockförmigen Auflageelemente kompliziert. Ein weiterer Nachteil besteht darin, daß zwischen den blockförmigen Endkopfteilen und der Gleitführung erhebliche Reibverluste auftreten. Schließlich stört, daß die Deckelkette sich längt, mit Staub und Faserflug verunreinigt wird, die Kettenglieder mit Schmiermitteln gewartet werden müssen, d. h. insgesamt konstruktiv und montagemäßig aufwendig und betrieblich nachteilig ist.In a known flat bar as part of a revolving lid, there is an internally hollow supporting body made of extruded aluminum, the hollow space being penetrated in the longitudinal direction by a steel rod. A block-shaped support element, which is fixed by a screw, is pushed onto the two ends of the rod protruding from the cavity. The screw is axially engaged with a thread at the end of the rod. The two end head parts slide on the fixed sliding guides of the card. On both sides of the flat bars, a lid chain is arranged between the end face of the support body and the block-shaped end head part, the links of which are penetrated by the ends of the rod. The flat chain pulls the flat bars over the sliding guides and ensures that the end head parts are pressed onto the sliding guides. The flat bar is complex in terms of construction and assembly. In particular, the production of the block-shaped support elements is complicated. Another disadvantage is that considerable friction losses occur between the block-shaped end head parts and the sliding guide. Finally, the fact that the cover chain is elongated, becomes contaminated with dust and fiber fly, and the chain links need to be serviced with lubricants, i. H. overall, it is constructive and complex in terms of assembly and operationally disadvantageous.

Bei einem aus der GB-A- 870 424 bekannten Antrieb für Kardendeckel klemmen die Deckel mittels einer Klemmplatte und einer Schraube ein endloses flexibles Band ein. Die Schraube hat die Aufgabe, den Deckel mit der Klemmplatte zu verbinden. Die Klemmplatte hat die Funktion, den Deckel auf der Gleitfläche des Flexibelbogens zu führen. Eine Befestigung der Klemmplatte am Deckel über ein zusätzliches Befestigungselement ist konstruktiv und montagemäßig aufwendig. An dem Deckel für Krempel nach der DE-C- 384 195 ist durch eine Niete jeweils an den Enden ein Stück befestigt, das mit einer Fläche auf der Deckelgleitbahn gleitet. Nach dem DE-U- 89 15 765 ist an beiden Enden des einstückigen Deckelstabes jeweils ein Deckelkopf vorhanden, der mit seinen unteren Flächen auf der Gleitführung gleitet.In a drive for card covers known from GB-A-870 424, the covers clamp an endless flexible band by means of a clamping plate and a screw. The screw has the task of connecting the cover to the clamping plate. The function of the clamping plate is to guide the cover on the sliding surface of the flexible sheet. Fastening the clamping plate on the cover using an additional fastening element is constructive and complex in terms of assembly. On the lid for clutter according to DE-C-384 195 is by a rivet attached to the ends of a piece that slides with a surface on the cover slide. According to DE-U-89 15 765, a cover head is present at both ends of the one-piece flat rod, which slides with its lower surfaces on the sliding guide.

Ein aus der US-A- 4 827 573 bekannter Deckelstab umfaßt ein durch eine Profilform gezogenes Stahlrohr. An beiden Enden des Deckelstabes sind massive Kopfstücke vorhanden, an denen Halteelemente für die Befestigung eines Antriebsriemens angebracht sind. Diese Kopfstücke sind entweder durch Schweißen oder mit Nieten oder Schrauben mit dem Deckelstab verbunden, damit sie ausgetauscht werden können, wenn sie durch Verschleiß unbrauchbar geworden sind. Es hat sich herausgstellt, daß die Schweißverbindung in einigen Fällen zu Spannungen im Deckelstab führen, und dann ein Austausch des ganzes Deckelstabs notwendig ist. Dasselbe gilt ebenfalls für die Schraub- und Nietverbindung, d. h. die anzuwendende Verbindungskraft (Schraubendrehung oder Druck beim Nieten) muß erstens gleichmäßig und für alle Deckelstäbe innerhalb eines gewissen Toleranzbereiches konstant bleiben, um zu hohe Druckspannungen (d. h. eine plastische Verformung der Stabslänge durch Quetschen) zu vermeiden. Der bekannte Deckelstab hat unten bis auf eine gewisse Höhe parallele und dann zusammenlaufende Seitenwände. Das Endkopfteil besteht aus drei Elementen, dem Kopfstück und dem zweiteiligen Halteelement, die axial in bezug auf den Tragkörper angeordnet sind. Nur das Kopfstück gleitet auf der Gleitführung, während sich die Halteelemente und das Antriebselement außerhalb der Gleitführung befinden. Nachteilig dabei ist, daß das außerhalb der Gleitführung angreifende Antriebselement eine unerwünschte Hebelwirkung und damit ein Biegemoment auf das Kopfstück und auf den Tragkörper ausübt. Außerdem gleitet das Kopfstück auf diese Weise nicht maßhaltig mit der Gleitführung, es kann zu störenden Verkantungen kommen. Die Herstellung des Tragkörpers aus einem durch eine Profilform kalt gezogenen Stahlrohr, das anschließend wärmebehandelt werden muß, ist sowohl in bezug auf Herstellkosten als auch in technologischer Hinsicht mit hohem Aufwand verbunden. Außerdem besitzt das Stahlrohr ein hohes spezifisches Gewicht, so daß der Deckelstab für den Antrieb zu schwer ist, was bei der Vielzahl der Deckelstäbe besonders ins Gewicht fällt. Schließlich ist von besonderem Nachteil, daß die Kopfstücke im Betrieb verschleißen. Das Auswechseln der verschlissenen Kopftstücke ist montagemäßig aufwendig, da die Schweiß- oder Nietverbindungen der Kopfstücke an dem Tragkörper gelöst und nach dem Ersatz erneut wieder angebracht werden müssen. Die Reperatur kann nur bei Stillstand der Karde erfolgen, was zu erheblichen Betriebsstörungen und Produktionsverlusten führt. Dieses Dokument bildet den Oberbegriff des ersten Anspruchs.A flat bar known from US-A-4 827 573 comprises a steel tube drawn through a profile shape. At both ends of the flat bar there are massive head pieces, on which holding elements for attaching a drive belt are attached. These head pieces are connected to the flat rod either by welding or with rivets or screws so that they can be replaced when they become unusable due to wear. It has been found that in some cases the welded connection leads to tension in the flat rod, and then the entire flat rod has to be replaced. The same also applies to the screw and rivet connection, i.e. H. the connecting force to be used (screw rotation or pressure when riveting) must firstly remain constant and constant for all flat bars within a certain tolerance range in order to avoid excessive compressive stresses (i.e. plastic deformation of the bar length due to squeezing). The known flat bar has parallel and then converging side walls down to a certain height. The end head part consists of three elements, the head piece and the two-part holding element, which are arranged axially with respect to the support body. Only the head piece slides on the slide guide, while the holding elements and the drive element are outside the slide guide. The disadvantage here is that the drive element acting outside the sliding guide exerts an undesirable lever effect and thus a bending moment on the head piece and on the support body. In addition, the head piece does not slide dimensionally with the sliding guide in this way, which can lead to disruptive canting. The production of the support body from a cold drawn steel tube through a profile shape, which then has to be heat treated, is associated with high expenditure both in terms of production costs and in technological terms. In addition, the steel tube has a high specific weight, so that the flat rod is too heavy for the drive, which is particularly important given the large number of flat rods. Finally, it is particularly disadvantageous that the head pieces wear during operation. The replacement of the worn head pieces is complex in terms of assembly, since the welded or riveted connections of the head pieces have to be loosened on the supporting body and must be reattached after the replacement. The card can only be repaired when the card is at a standstill, which leads to considerable malfunctions and production losses. This document forms the preamble of the first claim.

Der Erfindung liegt demgegenüber die Aufgabe zugrunde, einen Deckelstab der eingangs beschriebenen Art zu schaffen, der die genannten Nachteile vermeidet, der insbesondere konstruktiv und montagemäßig einfach ist und bei dem das Auflageelement (Endkopfteil) auf der Gleitführung der Karde maßhaltig und reibungsarm gleitet.The invention is based on the object to provide a flat rod of the type described above, which avoids the disadvantages mentioned, which is particularly simple in terms of construction and assembly, and in which the support element (end head part) slides on the sliding guide of the card in a dimensionally stable and low-friction manner.

Die Lösung dieser Aufgabe erfolgt durch die kennzeichnenden Merkmale des Patentanspruchs 1.This object is achieved by the characterizing features of patent claim 1.

Dadurch, daß das endlose Antriebselement mit den Elementen in Eingriff steht, drückt das Antriebselement das Element direkt von oben auf die Gleitführung, so daß unerwünschte Biegemomente auf das Element und auf den Tragkörper vermieden und eine maßhaltige Gleitung des Elements auf der Gleitführung erreicht ist. Die Ausbildung des Tragkörpers aus einem Leichtmetall-Strangpreßprofil ist konstruktiv, funktionell und wirtschaftlich von besonderem Vorteil. Herstellung und Montage des Tragkörpers sind wesentlich vereinfacht und außerdem sind wegen des geringen spezifischen Gewichts geringere Antriebskräfte für den Vortrieb erforderlich. Dadurch, daß mindestens der Gleitbereich des Elements aus einem verschleißfesten Werkstoff besteht, wird eine wesentlich erhöhte Standzeit erreicht. Es werden störende Betriebsunterbrechungen und Produktionsverluste vermieden.Characterized in that the endless drive element is in engagement with the elements, the drive element presses the element directly from above onto the sliding guide, so that undesirable bending moments on the element and on the supporting body are avoided and dimensionally accurate sliding of the element on the sliding guide is achieved. The design of the supporting body from a light metal extruded profile is of particular structural, functional and economic advantage. Manufacture and assembly of the support body are considerably simplified and, in addition, lower driving forces are required for the propulsion because of the low specific weight. Because at least the sliding area of the element consists of a wear-resistant material, a significantly increased service life is achieved. Disruptive business interruptions and production losses are avoided.

Dadurch, daß das Element sowohl den Gleitbereich als auch den Befestigungsbereich umfaßt, ergibt sich ein sehr einfacher Aufbau der Endkopfteile. Die Montage des Deckelstabes wird vereinfacht, was die Einhaltung von Toleranzen, also die Maßhaltigkeit verbessert. Des weiteren ermöglicht diese Konstruktion die Auswahl unter Vielzahl von Materialpaarungen, die verglichen mit dem Stand der Technik zur Reibungsverminderung und damit zu höheren Standzeiten führt.The fact that the element comprises both the sliding area and the fastening area results in a very simple construction of the end head parts. The assembly of the flat rod is simplified, which improves compliance with tolerances, i.e. dimensional accuracy. Furthermore, this construction enables the selection from a large number of material pairings which, compared to the prior art, leads to a reduction in friction and thus to a longer service life.

Vorteilhaft ist das Element einstückig. Zweckmäßig steht das Element unmittelbar mit dem Tragkörper in Eingriff. Bevorzugt steht das Element über einen an sich bekannten Hilfsträger im Bereich der Stimfläche mit dem Tragkörper in Eingriff. Mit Vorteil ist das Element unlösbar mit dem Hilfsträger verbunden. Zweckmäßig weist jedes Endkopfteil zwei Elemente auf. Dadurch ist seine Kippneigung und die Gleitreibung reduziert. Vorteilhaft ist der Gleitbereich des Elementes im wesentlichen linienförmig ausgeführt. Bevorzugt ist der Gleitbereich als Gleitfläche ausgeführt. Zweckmäßig ist der Befestigungsbereich ein Zylinder. Dadurch ist eine Anpassung an die gebogenen Deckelumlenkführungen gegeben, ohne daß eine Anfasung o. dgl. erforderlich ist. Handelsübliche gehärtete und geschliffene Stahlnadeln erlauben eine wirtschaftliche Fertigung des Deckelstabes. Durch die Arbeitsschritte Ablängen, Bohren und Einsetzen der Stifte ist eine besonders einfache Fertigung des Deckelstabes ermöglicht. Vorteilhaft ist der Befestigungsbereich ein Vielkant. Bevorzugt besteht der Gleitbereich des Elementes aus einem verschleißfesten Werkstoff. Zweckmäßig sind die Elemente in der Stimfläche des Fußteils des hohlen Strangpreßprofils befestigt. Vorteilhaft sind die Elemente Stifte aus gehärtetem Stahl o. dgl. Bevorzugt ist die Gleitfläche der Elemente geschliffen, feingeschliffen und/oder poliert. Zweckmäßig sind die Elemente mit ihrem Befestigungsbereich in Ausnehmungen des Tragkörpers befestigt. Vorteilhaft sind die Elemente mit ihrem Befestigungsbereich in einer Bohrung in der Stimfläche des Tragkörpers befestigt. Bevorzugt befindet sich die untere Begrenzung der Elemente in einem Abstand a oberhalb der Fußfläche des Tragkörpers. Zweckmäßig sind die Elemente in Arbeitsrichtung D unter einem Winkel Alpha in bezug auf die Längsachse des Tragkörpers derart angeordnet, daß ihre Gleitbereiche in bezug auf ihre Befestigungsbereiche entgegen der Arbeitsrichtung weisen. Vorteilhaft ist der Tragkörper ein Strangpreßprofil aus einem Leichtmetall, z. B. Aluminium, oder einer Leichtmetall-Legierung. Durch die Verwendung eines spezifisch leichten Werkstoffes, z. B. Aluminium, für den Tragkörper ist die Antriebskraft für die Deckelstäbe des Wanderdeckels reduziert. Wie sich in der Praxis gezeigt hat, ist der Transport der Wanderdeckel aus dem leichten Werkstoff durch die reibungsarmen Endkopfteile aus dem leichten Werkstoff durch die reibungsarmen Endkopfteile auf der glatten Gleichfläche mit dem flexiblen Riemen besonders leicht möglich. Der Tragkörper kann durch Ablängen eines handelsüblichen Strangpreßprofils auf einfache Weise gefertigt werden. Aluminium erlaubt die Herstellung eines leichten Deckelstabes. Bevorzugt ist das Strangpreßprofil ein Hohlprofil. Auf diese Weise ist die Durchbiegung des Tragkörpers und damit des Deckelstabes über die Breite der Karde gesehen vermindert. Außerdem wird durch den inneren Hohlraum Aluminium eingespart, so daß der Tragkörpeer wirtschaftlicher und außerdem leichter herzustellen ist. Zweckmäßig sind im Fußteil des Strangpreßprofils über die Länge durchgehende Ausnehmungen vorhanden. Bevorzugt verlaufen die Ausnehmungen parallel zueinander. Vorteilhaft weisen die Ausnehmungen einen durchgehenden Schlitz auf.The element is advantageously in one piece. The element is expediently in direct engagement with the supporting body. The element preferably engages with the supporting body in the region of the end face via an auxiliary carrier known per se. The element is advantageously permanently connected to the subcarrier. Each end head part expediently has two elements. This reduces its tendency to tip over and the sliding friction. The sliding area of the element is advantageously made essentially linear. The sliding area is preferably designed as a sliding surface. The fastening area is expediently a cylinder. This provides an adaptation to the curved cover deflection guides without a chamfer or the like being necessary. Commercially available hardened and ground steel needles allow the flat rod to be manufactured economically. The steps of cutting, drilling and inserting the pins make the flat rod particularly easy to manufacture. The fastening area is advantageously a polygon. The sliding area of the element preferably consists of a wear-resistant material. The elements are expediently fastened in the end face of the foot part of the hollow extruded profile. The elements pins made of hardened steel or the like are advantageous. The sliding surface of the elements is preferably ground, finely ground and / or polished. The elements are expediently fastened with their fastening region in recesses in the supporting body. The elements with their fastening area are advantageously fastened in a bore in the end face of the supporting body. The lower limit of the elements is preferably at a distance a above the foot surface of the support body. The elements are expediently arranged in the working direction D at an angle alpha with respect to the longitudinal axis of the support body in such a way that their sliding regions point opposite to the working direction with respect to their fastening regions. The support body is advantageously an extruded profile made of a light metal, for. As aluminum, or a light metal alloy. By using a specifically light material, e.g. B. aluminum, for the support body, the driving force for the flat bars of the revolving lid is reduced. As has been shown in practice, it is particularly easy to transport the traveling covers from the light material through the low-friction end head parts from the light material through the low-friction end head parts on the smooth, even surface with the flexible belt. The support body can be manufactured in a simple manner by cutting to length a commercially available extruded profile. Aluminum allows the production of a light flat bar. The extruded profile is preferably a hollow profile. In this way, the deflection of the support body and thus of the flat bar is reduced over the width of the card. In addition, aluminum is saved through the inner cavity, so that the supporting body is more economical and also easier to manufacture. Appropriately, there are recesses in the foot part of the extruded profile over the length. The recesses preferably run parallel to one another. The recesses advantageously have a continuous slot.

Zweckmäßig ist der Querschnitt der Ausnehmungen kreisförmig. Bevorzugt ist in den Ausnehmungen zwischen den Elementen jeweils eine Versteifung angeordnet. Vorteilhaft ist der Querschnitt der Ausnehmungen polygonal. Zweckmäßig ist die Versteifung ein Stahlprofil. Bevorzugt ist mindestens ein endloser flexibler Riemen zum Vortrieb der Deckelstäbe vorhanden, wobei die Außenseite des flexiblen Riemens und der nicht die Gleitführung berührende Teil der Endkopfteile der Deckelstäbe formschlüssig miteinander in Eingriff stehen.The cross section of the recesses is expediently circular. A stiffener is preferably arranged in the recesses between the elements. The cross section of the recesses is advantageously polygonal. The stiffening is expediently a steel profile. Preferably there is at least one endless flexible belt for propelling the flat bars, the outside of the flexible belt and the part of the end head parts of the flat bars not touching the sliding guide being in positive engagement with one another.

Erfindungsgemäß weisen die Endkopfteile des Deckelstabes verschleißarme, reibungsarme und maßlich präzise Gleitflächen auf. Die Verwendung eines flexiblen Riemens ermöglicht - im Gegensatz zu einer Deckelkette - eine gleichbleibende Länge des Antriebselements, der flexible Riemen ist wartungsfrei, konstruktiv einfach und erlaubt eine einfache Montage des Wanderdeckels. Vorteilhaft steht ein Verbindungselement mit den Elementen und mit dem flexiblen Riemen in Eingriff. Zweckmäßig steht das Element indirekt mit dem flexiblen Riemen in Eingriff. Bevorzugt ist das Verbindungselement mit einem Ende in oder an der Stimfläche des Tragkörpers befestigt. Vorteilhaft weisen die Elemente zwischen ihren freien Endflächen und des Verbindungselements einen Abstand auf. Zweckmäßig stehen mindestens an einem Deckelstab die Verbindungselemente, Borsten, Bürsten, elastische Wischelemente o. dgl. mit der Gleitführung säubernd in Eingriff. Bevorzugt ist der obere Bereich des Fußteils in einen spitzen Winkel Alpha zur Senkrechten angeordnet. Vorteilhaft stehen die oben freibleibenden Bereiche der Elemente bei der Rückführung der Deckelstäbe mit einem Abstützelement in Eingriff. Zweckmäßig bilden der Tragkörper und die Endkopfteile mindestens drei zusammengesetzte Bauteile. Bevorzugt stehen die flexiblen Riemen direkt mit den verschleißfesten Endkopfteilen in Eingriff. Vorteilhaft sind die Elemente in oder an den Endkopfteilen befestigt. Zweckmäßig zeigen die Elemente eine verschleißfeste Beschichtung, Plattierung auf, die sich auf ihren Gleitbereich befindet. Bevorzugt stehen die Elemente direkt mit dem flexiblen Riemen in Eingriff. Vorteilhaft gleiten die unteren Bereiche der Elemente auf den Gleitführungen.According to the invention, the end head parts of the flat rod have low-wear, low-friction and dimensionally precise sliding surfaces. In contrast to a cover chain, the use of a flexible belt enables the drive element to have a constant length; the flexible belt is maintenance-free, structurally simple and allows the traveling cover to be easily installed. A connecting element is advantageously in engagement with the elements and with the flexible belt. The element expediently engages the flexible strap indirectly. The connecting element is preferably fastened with one end in or on the end face of the supporting body. The elements advantageously have a distance between their free end faces and the connecting element. The connecting elements, bristles, brushes, elastic wiping elements or the like expediently engage the sliding guide in a cleaning manner. The upper region of the foot part is preferably arranged at an acute angle alpha to the vertical. The areas of the elements which remain free at the top advantageously engage a support element when the flat bars are returned. The support body and the end head parts expediently form at least three assembled components. The flexible straps preferably engage directly with the wear-resistant end head parts. The elements are advantageously fastened in or on the end head parts. The elements expediently display a wear-resistant coating, plating, which is located on their sliding area. The elements preferably engage directly with the flexible belt. The lower areas of the elements advantageously slide on the slide guides.

Zweckmäßig steht der Ansatz des Verbindungselements mit der Ausnehmung in Eingriff. Bevorzugt weist das Verbindungselement eine durchgehende Bohrung auf, in die ein Ansatz des Zahnriemens eingreift. Vorteilhaft ist das Verbindungselement auf den Elementen befestigt, z. B. festgeklemmt oder eingeklebt. Zweckmäßig sind die Elemente durch Preßsitz mit den Ausnehmungen verbunden. Bevorzugt sind die Elemente durch fedemde Klemmung mit den Ausnehmungen verbunden. Vorteilhaft sind die Elemente durch Einkleben mit den Ausnehmungen verbunden. Zweckmäßig ist die Ebenheit der Gleitflächen eines Deckelstabes durch Abschleifen der Gleitbereiche nach dem Verbinden der Elemente mit dem Träger erzielt.The attachment of the connecting element expediently engages with the recess. The connecting element preferably has a through bore into which a shoulder of the toothed belt engages. The connecting element is advantageously fastened to the elements, e.g. B. clamped or glued. The elements are expediently connected to the recesses by a press fit. The elements are preferably connected to the recesses by resilient clamping. The elements are advantageously connected to the recesses by gluing. The flatness of the sliding surfaces of a flat bar is expediently achieved by grinding the sliding areas after connecting the elements to the carrier.

Eine besonders bevorzugte Ausgestaltung der Erfindung sieht vor, daß die Endkopfteile Gußteile sind, insbesondere die Endkopfteile Spritzgußteile. Außer Grauguß ist vorzugsweise in der Form von Feinfußteilen kommt als Material dafür Stahlguß in Frage. Alternativ dazu ist jedoch auch möglich, mit Kunststoff umspritzte Elemente einzusetzen, bei denen sowohl der Befestigungsbereich als auch der Gleitbereich aus Metall besteht. Allen drei Möglichkeiten ist gemein, daß das fertige Endkopfteil die Form eines Steckers aufweist, der einfach in die entsprechenden Ausnehmungen in der Stimseite des Tragkörpers eingesetzt werden kann.A particularly preferred embodiment of the invention provides that the end head parts are cast parts, in particular the end head parts are injection molded parts. In addition to gray cast iron, preferably in the form of fine-foot parts, cast steel can be used as the material for this. Alternatively, however, it is also possible to use plastic-encapsulated elements in which both the fastening area and the sliding area are made of metal. All three possibilities have in common that the finished end part has the shape of a plug that can be easily inserted into the corresponding recesses in the end face of the support body.

Ein vorteilhaftes Verfahren zur Herstellung von Deckelstäben sieht vor, daß aus einem Strangpreßprofil der Tragkörper abgelenkt wird und als Elemente Stifte in seine Ausnehmungen eingesetzt werden. Vorteilhaft wird dabei dem Tragkörper oder den Stiften das Verbindungselement zugeordnet.

Es zeigt: Fig. 1
schematisch in Seitenansicht eine Deckelkarde mit den erfindungsgemäßen Deckelstäben (Wanderdeckel),
Fig. 2
die Deckelstäbe im mittleren Bereich des Wanderdeckels in Eingriff mit einem Zahnriemen,
Fig. 3
die Deckelstäbe im Bereich einer Deckelumlenkrolle,
Fig. 4a
Stimansicht des Deckelstabes mit zwei Stahlstiften und Verbindungselementen,
Fig. 4b
Seitenansicht eines Endkopfteils des Deckelstabes gem. Fig. 4a,
Fig. 4c
Seitenansicht des gesamten Deckelstabes gemäß Fig. 4a,
Fig. 5
ein Deckelstab mit drei Stahlstiften,
Fig. 6
ein Deckelstab mit einer Stahlkammer,
Fig. 7
das Verbindungselement mit Borsten, die mit der Gleitführung in Eingriff stehen,
Fig. 8
perspektivisch den Zahnriemen mit zylinderförmigen Ansätzen für den Eingriff mit dem Verbindungselement und mit zahnförmigem Ansetzen für den Eingriff mit den Deckelumlenkrollen (Zahnriemenräder),
Fig. 9a, 9b
im Detail ein Element,
Fig. 10
als Draufsicht auf einen Deckelstab abgewinkelte Elemente,
Fig. 11
ein einstückiger Deckelstab mit verschleißfest armierten Endkopfteilen,
Fig. 12
perspektivisch den Endbereich eines Tragkörpers,
Fig. 13
als Seitenansicht im Teilschnitt einen Deckelstab,
Fig. 14
perspektivisch ein Verbindungselement,
Fig. 15
ein Endkopfteil mit Elementen und Mitnehmem,
Fig. 15a
ein Endkopfteil mit Mitnehmem,
Fig. 15b
den zugehörigen Zahnriemen,
Fig. 16a, 16b
Endkopfteile in Steckerform und
Fig. 17a, 17b
die zugehörigen Tragkörper.
An advantageous method for producing flat bars provides that the support body is deflected from an extruded profile and pins are inserted into its recesses as elements. The connecting element is advantageously assigned to the support body or the pins.
It shows: FIG. 1
schematically in side view a flat card with the flat bars according to the invention (revolving lid),
Fig. 2
the flat bars in the middle area of the revolving lid engage with a toothed belt,
Fig. 3
the flat bars in the area of a flat pulley,
Fig. 4a
End view of the flat bar with two steel pins and connecting elements,
Fig. 4b
Side view of an end head part of the flat bar acc. 4a,
Fig. 4c
Side view of the entire flat bar according to FIG. 4a,
Fig. 5
a flat bar with three steel pins,
Fig. 6
a flat rod with a steel chamber,
Fig. 7
the connecting element with bristles which are in engagement with the sliding guide,
Fig. 8
in perspective the toothed belt with cylindrical projections for engagement with the connecting element and with tooth-shaped attachments for engagement with the cover pulleys (toothed belt wheels),
9a, 9b
in detail an element
Fig. 10
angled elements as a top view of a flat rod,
Fig. 11
a one-piece flat rod with wear-resistant armored end head parts,
Fig. 12
perspective the end region of a support body,
Fig. 13
as a side view in partial section a flat rod,
Fig. 14
perspective a connecting element,
Fig. 15
an end headboard with elements and drivers,
15a
an end head part with driver,
15b
the associated timing belt,
16a, 16b
End head parts in plug form and
17a, 17b
the associated support body.

Fig. 1 zeigt eine Karde, z. B. Trützschler EXACTACARD DK 760, mit Speisewalze 1, Speisetisch 2, Vorreißer 3, Trommel 4, Abnehmer 5, Abstreichwalze 6, Quetschwalzen 7, 8, Vliesleitelement 9, Flortrichter 10, Abzugswalzen 11, 12 und Wanderdeckel 13. Die Drehrichtung (Pfeile A bzw. B) der vorderen und hinteren Deckelumlenkrolle 15a, 15b (Zahnriemenräder) ist entgegengesetzt zur Drehrichtung (Pfeil C) der Trommel 4. Die Deckelstäbe 14', 14'' ... 14n werden durch den Zahnriemen 16 in Richtung des Pfeils D über die Gleitführung 17 gezogen. Auf der der Gleitführung 17 gegenüberliegenden, oberen Seite des Wanderdeckels 13 werden die Deckelstäbe 14 in Richtung des Pfeils E rückgeführt.Fig. 1 shows a card, e.g. B. Trützschler EXACTACARD DK 760, with feed roller 1, dining table 2, licker-in 3, drum 4, customer 5, doctor roller 6, squeeze rollers 7, 8, fleece guide element 9, pile funnel 10, take-off rollers 11, 12 and revolving cover 13. The direction of rotation (arrows A or B) of the front and rear cover deflection roller 15a, 15b (toothed belt wheels) is opposite to the direction of rotation (arrow C) of the drum 4. The flat bars 14 ', 14''... 14n are pulled by the toothed belt 16 in the direction of arrow D over the slide guide 17. On the upper side of the revolving cover 13 opposite the slide guide 17, the flat bars 14 are returned in the direction of the arrow E.

Fig. 2 zeigt im Detail die Deckelstäbe an einem Wanderdeckel nach Fig. 1, bei der der endlose flexible Riemen 16 zum Vortrieb der Deckelstäbe 14', 14'', 14''' ... 14n vorhanden ist und bei der die Deckelstäbe 14 mit der Unterseite 14b ihrer Endkopfteile (Deckelköpfe) 14a (Enden der Deckelstäbe 14) auf der Gleitführung 17 (Flexibelbogen) gleiten. Das Zahnriemenrad 15b, das Zähne 15' aufweist, dreht sich in Richtung des Pfeils B, steht mit den Zähnen 26a, 26b ... 26n auf der Innenseite 16b des Zahnriemens 16 (sh. Fig. 8) in Eingriff und zieht das untere Trum 16c des Zahnriemens 16 in Richtung des Pfeils D vorwärts. Die Außenseite 16a des Zahnriemens 16 steht mit der der Garnitur gegenüberliegenden Seite 14c des Endkopfteils 14a formschlüssig in Eingriff. Der Riemen 16 drückt die Endkopfteile 14a auf die Gleitführung 17. Dem Zahnriemenrad 15b liegt ein gebogenes Führungs- und Halteelement 18 gegenüber, durch das die Deckelstäbe 14 bei der Umlenkung gehalten werden. Das Zahnriemenrad 15a (sh. Fig. 1) dreht sich in Richtung des Pfeils A, steht mit den Zähnen 26a, 26b ... 26n auf der Innenseite 16b des Zahnriemens 16 in Eingriff und zieht das obere Trum 16d des Zahnriemens 16 in Richtung des Pfeils E. Die Deckelstäbe 14 bzw. die Endkopfteile 14a liegen lose auf der Außenseite 16a des oberen Trums 16d des Riemens 16 auf. Dem Zahnriemenrad 15a liegt ein gebogenes Führungs- und Halteelement 19 gegenüber, durch das die Deckelstäbe 14 bei der Umlenkung gehalten werden.FIG. 2 shows in detail the flat bars on a revolving lid according to FIG. 1, in which the endless flexible belt 16 for propelling the flat bars 14 ', 14' ', 14' '' ... 14n is present and in which the flat bars 14 with the underside 14b of their end head parts (cover heads) 14a (ends of the cover rods 14) slide on the sliding guide 17 (flexible bend). The toothed belt wheel 15b, which has teeth 15 ', rotates in the direction of the arrow B, engages with the teeth 26a, 26b ... 26n on the inside 16b of the toothed belt 16 (see FIG. 8) and pulls the lower run 16c of the toothed belt 16 in the direction of arrow D forward. The outside 16a of the toothed belt 16 is in a form-fitting engagement with the side 14c of the end head part 14a opposite the clothing. The belt 16 presses the end head parts 14a onto the sliding guide 17. The toothed belt wheel 15b is opposite a curved guide and holding element 18, by means of which the flat bars 14 are held during the deflection. The toothed belt wheel 15a (see FIG. 1) rotates in the direction of the arrow A, engages with the teeth 26a, 26b ... 26n on the inside 16b of the toothed belt 16 and pulls the upper run 16d of the toothed belt 16 in the direction of Arrow E. The flat bars 14 and the end head parts 14a lie loosely on the outside 16a of the upper run 16d of the belt 16. The toothed belt wheel 15a is opposite a curved guide and holding element 19, by means of which the flat bars 14 are held during the deflection.

Nach Fig. 3 ist das obere Trum 16d durch zwei Stützrollen 20, 21 und durch eine ebene Auflage 22 abgestützt. Die Stützrollen 20, 21 sind als Zahnriemenräder ausgebildet, die mit der Innenseite 16b des Riemens 16 in Eingriff stehen.3, the upper run 16d is supported by two support rollers 20, 21 and by a flat support 22. The support rollers 20, 21 are designed as toothed belt wheels, which are in engagement with the inside 16b of the belt 16.

Nach Fig. 4a weist der Deckelstab 14 einen Tragkörper 14d mit einem Garnituraufnahmeteil 14e und einem Rückenteil 14f auf. Der Tragkörper 14d ist ein Strangpreßprofil aus Aluminium, das innen einen Hohlraum 14g aufweist. Jeder Deckelstab weist zwei Endkopfteile 14a' und 14a" auf (sh. Fig. 4c). Das Endkopfteil 14a' bzw. 14a'' besteht jeweils aus zwei Stiften 23', 23'' und einem Verbindungselement 24. Die Stifte 23 sind mit ihrem einen Ende in einer Bohrung 25 in der Stirnfläche 14h des Tragkörpers 14d befestigt. Die untere Begrenzung der Stifte 23 befindet sich in einem Abstand a oberhalb der Fußfläche 14e des Tragkörpers 14d. Die Stifte 23 (gemäß Fig. 4a bis 4c sind vier Stifte 23 an dem Deckelstab 14 vorhanden) bestehen aus gehärtetem Stahl und weisen einen kreisrunden Querschnitt auf. Die Oberfläche der Stifte 23 ist geschliffen, feingeschliffen oder poliert, d. h. glatt. Das Verbindungselement 24 weist auf der einen Seite zwei halboffene Ausnehmungen 24', 24'' auf, die mit den Stiften 23', 23'' formschlüssig in Eingriff stehen. Das Verbindungselement 24 besteht aus Kunststoff und ist auf den Stiften 23', 23'' befestigt, z. B. festgeklemmt. Die andere Seite des Verbindungselements 24 steht mit der Seite 16a des Zahnriemens 16 in Eingriff. Das Verbindungselement 24 weist in der Mitte eine durchgehende Bohrung 24''' auf, in die jeweils ein Ansatz 25a des Zahnriemens 16 eingreift. Auf diese Weise stehen die Stifte 23', 23'' indirekt mit dem Zahnriemen 16 in Eingriff. Das Verbindungselement 24 weist an seiner einen Stirnfläche einen Ansatz 44, z. B. einen Dübel auf der in einer Bohrung 26 in der Stirnfläche 14h des Tragkörpers 14d befestigt ist. Das Verbindungselement 24 ist einem Abstand b zu der Fußfläche 14e angeordnet, wobei a kleiner als b ist.4a, the flat bar 14 has a supporting body 14d with a clothing receiving part 14e and a back part 14f. The support body 14d is an extruded profile made of aluminum, which has a cavity 14g on the inside. Each flat rod has two end head parts 14a 'and 14a "(see FIG. 4c). The end head part 14a' and 14a" each consist of two pins 23 ', 23 "and a connecting element 24. The pins 23 are with their one end is fastened in a bore 25 in the end face 14h of the support body 14d, the lower limit of the pins 23 is located at a distance a above the foot surface 14e of the support body 14d. The pins 23 (according to FIGS. 4a to 4c, four pins 23 are attached) the flat rod 14) are made of hardened steel and have a circular cross-section. The surface of the pins 23 is ground, finely ground or polished, ie smooth. The connecting element 24 has two half-open recesses 24 ', 24 "on one side, which are positively engaged with the pins 23 ', 23 ". The connecting element 24 is made of plastic and is fastened, for example clamped, to the pins 23', 23" ". The other side of the connecting element 24 stands with the side 16a of the toothed belt 16 in engagement. The connecting element 24 has a through bore 24 '' 'in the middle, into which a shoulder 25a of the toothed belt 16 engages. In this way, the pins 23 ', 23' 'are indirectly engaged with the toothed belt 16. The connecting element 24 has on its one end face a shoulder 44, for. B. is attached to a dowel in a bore 26 in the end face 14h of the support body 14d. The connecting element 24 is arranged at a distance b from the foot surface 14e, where a is less than b.

Zwischen den freien Endflächen der Stifte 23', 23'' und des Verbindungselements 24 ist ein freier Abstand c vorhanden. Die oben vorhandenen freibleibenden Abschnitte c der Stifte 23 stehen bei der Rückführung der Deckelstäbe 14 mit der ebenen Auflage 22 (Abstützelement) in Eingriff. Die unteren Abschnitte (Bereiche) der Stifte 23 gleiten auf den Gleitführungen 17. Dabei kann die Berührung etwa linienförmig erfolgen. Die Gleitführungen 17 können aus einem sog. selbstschmierenden Kunststoff, z. B. einem hochmolekularen Niederdruck-Polyethylen bestehen, so daß eine wartungsfreie Wanderdeckellaufbahn entsteht. Es kann für die Gleitführung 17 auch ein anderer Werkstoff mit geringem Verschleiß, langer Lebensdauer, guten Gleiteigenschaften und geringen Reibverlusten verwendet werden. Die Gleitführung 17 kann aus einem metallischen Werkstoff bestehen. Die Oberfläche der Gleitführung 17 ist ebenso wie die Oberfläche der Stifte 23 glatt.There is a free distance c between the free end surfaces of the pins 23 ', 23''and the connecting element 24. The above free portions c of the pins 23 are in engagement with the flat support 22 (support element) when the flat bars 14 are returned. The lower sections (areas) of the pins 23 slide on the slide guides 17. The Touch approximately linear. The sliding guides 17 can be made of a so-called self-lubricating plastic, for. B. consist of a high molecular low-pressure polyethylene, so that a maintenance-free traveling cover career is created. Another material with low wear, long service life, good sliding properties and low friction losses can also be used for the sliding guide 17. The sliding guide 17 can consist of a metallic material. The surface of the slide guide 17 is smooth, as is the surface of the pins 23.

Nach Fig. 4c besteht der Deckelstab 14 aus einem Tragkörper 14d und zwei Endkopfteilen 14a' und 14a", d. h. aus drei zusammengesetzten Bauteilen, d. h. der Deckelstab 14 ist mehrstückig. Die Endkopfteile 14a', 14a" bestehen ihrerseits jeweils aus zwei Stiften 23', 23'' und einem Verbindungsteil 24, d. h. aus drei Einzelteilen.4c, the flat rod 14 consists of a supporting body 14d and two end head parts 14a 'and 14a ", ie of three assembled components, ie the flat rod 14 is in several pieces. The end head parts 14a', 14a" in turn each consist of two pins 23 ', 23 '' and a connecting part 24, i.e. H. from three individual parts.

Nach Fig. 5 erstreckt sich das Verbindungselement 24 in voller Länge oberhalb der Stifte 23', 23". Oberhalb des Verbindungselements 24 ist zusätzlich ein kurzer Stift 23''' vorgesehen, der mit der Auflagefläche 22 bei der Rückführung in Eingriff steht.5, the connecting element 24 extends over the entire length above the pins 23 ′, 23 ″. Above the connecting element 24, a short pin 23 ″ ″ is additionally provided, which engages with the bearing surface 22 during the return.

Fig. 6 entspricht im wesentlichen Fig. 5; statt des Stiftes 23''' ist eine Klammer 27 aus gehärtetem Stahl vorhanden.Fig. 6 essentially corresponds to Fig. 5; instead of the pin 23 '' 'there is a bracket 27 made of hardened steel.

Nach Fig. 7 weist das Verbindungselement 24 an seiner Unterseite Borsten 28 auf, die mit der Gleitführung 17 säubernd in Eingriff stehen. Die Borsten 28 sind z. B. 1 mm länger als der Abstand b. Die Borsten 28 säubern die Gleitführung 17 von Sand, Spänen u. dgl.. Zum Reinigen der Borsten 28 kann auf der Rückführseite eine (nicht dargestellte) Putzwalze vorhanden sein.According to FIG. 7, the connecting element 24 has bristles 28 on its underside, which are in cleaning engagement with the sliding guide 17. The bristles 28 are e.g. B. 1 mm longer than the distance b. The bristles 28 clean the sliding guide 17 from sand, chips and. Like .. For cleaning the bristles 28, a cleaning roller (not shown) may be present on the return side.

Fig. 8 zeigt den Riemen 16, der auf seiner Außenseite 16a Ansätze 25a, 25b ... 25n, z. B. aus Gummi, aufweist. Die Ansätze 25a bis 25n greifen im Betrieb in die entsprechenden Bohrungen 24''' in den Verbindungselementen 24 von oben ein. Auf der Innenseite 16b des Riemens 16 sind Zähne 26a ... 26n vorhanden. Der Riemen 16 ist in Längsrichtung durch innenliegende zugfeste und biegsame Stahldrähte 33 armiert.Fig. 8 shows the belt 16, the lugs 25a, 25b ... 25n, z. B. made of rubber. The approaches 25a to 25n engage in operation in the corresponding bores 24 '''in the connecting elements 24 from above. On the inside 16b of the belt 16 there are teeth 26a ... 26n. The belt 16 is reinforced in the longitudinal direction by internal tensile and flexible steel wires 33.

Fig. 11 zeigt einen Deckelstab 14, bei dem der Tragkörper 14d und die Endkopfteile 14a' (bzw. 14a'') einstückig, z. B. aus stranggepreßtem Aluminium, ausgebildet sind. Die Fläche 14c weist eine durchgehende Bohrung 29 für die Aufnahme der Ansätze 25 des Zahnriemens 16 auf. Auf der der Fußfläche 14e zugeordneten Seite der Endkopfteile 14a' sind verschleißfeste Plattierungen 30', 30'' fest angebracht, die mit der Gleitführung 17 in Eingriff stehen.Fig. 11 shows a flat rod 14, in which the support body 14d and the end head parts 14a '(or 14a' ') in one piece, for. B. are made of extruded aluminum. The surface 14c has a continuous bore 29 for receiving the shoulders 25 of the toothed belt 16. Wear-resistant claddings 30 ′, 30 ″, which engage with the sliding guide 17, are firmly attached to the side of the end head parts 14a ′ assigned to the foot surface 14e.

Über die Breite der Karde ist an beiden Seiten des Wanderdeckels 13 jeweils ein endlos umlaufender Zahnriemen 16 vorhanden, d. h. der Wanderdeckel 14 weist zwei Zahnriemen 16 auf.An endlessly rotating toothed belt 16 is present on both sides of the revolving cover 13 across the width of the card, i. H. the revolving cover 14 has two toothed belts 16.

Die Materialpaarung zwischen dem Auflageelement und der Gleitführung ist so gewählt, daß eine reibungsarme Gleitbewegung erfolgt, daß geringer Verschleiß auftritt und die Einrichtung im Betrieb wartungsarm oder wartungsfrei ist.The material pairing between the support element and the sliding guide is selected so that a low-friction sliding movement takes place, that little wear occurs and that the device is low-maintenance or maintenance-free during operation.

Nach Fig. 9a, 9b weist der Stift 23 eine rechteckige Fläche 23V mit Breite d und Länge e auf, die z. B. durch Abschleifen erzeugt wird. Die Fläche 23V gleitet auf der Gleitführung 17. Auf diese Weise ist die Flächenpressung reduziert. Außerdem ist der Spalt zwischen der konvexen Mantelfläche des Stiftes 23 und der Gleitführung 17 verkleinert, in dem sich Verunreinigungen ansammeln und festsetzen können.According to Fig. 9a, 9b, the pin 23 has a rectangular surface 23 V with width d and length e, the z. B. is generated by grinding. The surface 23 V slides on the slide guide 17. In this way, the surface pressure is reduced. In addition, the gap between the convex lateral surface of the pin 23 and the sliding guide 17 is reduced, in which contaminants can collect and settle.

Entsprechend Fig. 10 sind die Stifte 23I bis 23IV in Arbeitsrichtung D unter einem Winkel α in bezug auf die Längsachse des Tragkörpers 14d derart angeordnet, daß jeweils das freie Ende der Stifte entgegen der Arbeitsrichtung D weist. Dadurch werden Verunreinigungen nach außen rückwärts durch die Stifte 23 abgeleitet. Der innerhalb der Bohrung 25 angeordnete Teil der Stifte 23 (vgl. Fig. 4b) kann in Richtung der Längsachse des Tragkörpers 14d ausgerichtet sein, d. h. der Stift 23 ist abgewinkelt.According to FIG. 10, the pins 23 I to 23 IV are arranged in the working direction D at an angle α with respect to the longitudinal axis of the support body 14d in such a way that the free end of the pins points counter to the working direction D. This will Contaminants are discharged to the outside through the pins 23. The part of the pins 23 arranged within the bore 25 (cf. FIG. 4b) can be aligned in the direction of the longitudinal axis of the support body 14d, ie the pin 23 is angled.

Fig. 12 zeigt in perspektivischer Darstellung den Tragkörper 14d eines Deckelstabes als Strangpreßprofil. Die Ausnehmungen 41', 41'' und 43, sind mitextrudiert und erstrecken sich parallel über die gesamte Länge des Tragkörpers 14d. Die Ausnehmungen 41' und 41'' dienen zur Aufnahme der Elemente 23. Die Ausnehmung 43 dient zur Aufnahme des Ansatzes 44 (sh. Fig. 14) an dem Verbindungselement 24 oder des Elementes 23'''. Über die Längsschlitze 42 sind die Ausnehmungen 41', 42'' und 43 nach außen geöffnet. Die der Unterseite 14b des Tragkörpers 14d gegenüberliegende Seite 14c verläuft gegenüber der Unterseite 14b unter einem spitzen Winkel, um das Aufbringen und Befestigen der nicht dargestellten Gamitur zu erleichtem.Fig. 12 shows a perspective view of the support body 14d of a flat bar as an extruded profile. The recesses 41 ', 41' 'and 43 are also extruded and extend parallel over the entire length of the support body 14d. The recesses 41 'and 41' 'serve to receive the elements 23. The recess 43 serves to receive the extension 44 (see FIG. 14) on the connecting element 24 or the element 23' ''. The recesses 41 ', 42' 'and 43 are open to the outside via the longitudinal slots 42. The side 14c opposite the underside 14b of the support body 14d extends at an acute angle with respect to the underside 14b in order to facilitate the application and fastening of the gauze (not shown).

Fig. 13 zeigt, daß die Elemente 23 in die Ausnehmungen 41" bzw. 41'' beidseitig eingesetzt sind. Dem Teilschnitt ist dabei zu entnehmen, daß zusätzlich zwischen sich gegenüberliegenden Elementen 23 und mit geringem Abstand zu diesen eine Versteifung 34 eingebracht wurde. Diese Versteifung 34 sorgt zum einen dafür, daß sich der Längsschlitz 42 nicht nach innen verformen kann, ergibt des weiteren aufgrund ihres hohen spezifischen Gewichtes, da sie aus Stahl besteht, eine Verlagerung des Schwerpunktes nach unten.13 shows that the elements 23 are inserted into the recesses 41 ″ or 41 ″ on both sides. It can be seen from the partial section that a reinforcement 34 has also been introduced between opposing elements 23 and at a short distance from them Stiffening 34 ensures, on the one hand, that the longitudinal slot 42 cannot deform inwards, and, because of its high specific weight, since it is made of steel, results in a shift of the center of gravity downwards.

Fig. 14 zeigt das Verbindungselement 24 mit dem Ansatz 44, der in die Ausnehmung 43 eingepreßt wird. Die Führungen 24' und 24''' klemmen dabei auf den Stiften 23', 23".Fig. 14 shows the connecting element 24 with the projection 44 which is pressed into the recess 43. The guides 24 'and 24' '' clamp on the pins 23 ', 23 ".

Fig. 15a zeigt eine alternative Ausgestaltung. Die Stifte 23' bzw. 23'' sind mit Mitnehmem 45 ausgerüstet, die in Aussparungen 45' des Zahnriemens 16 eingreifen.15a shows an alternative embodiment. The pins 23 'and 23' 'are equipped with drivers 45 which engage in recesses 45' of the toothed belt 16.

Fig. 15b zeigt den Zahnriemen 16 mit den Ausnehmungen 45'.15b shows the toothed belt 16 with the recesses 45 '.

Fig. 16a zeigt ein Endkopfteil 14a, das als Gußstück ausgeführt ist. Der Befestigungsbereich besteht aus zwei Steckem 40", 40''', die ebenso wie der Mitnehmer 45' integrale Teile des Endkopfteiles 14a sind.16a shows an end head part 14a which is designed as a casting. The fastening area consists of two plugs 40 ″, 40 ″ ″, which, like the driver 45 ′, are integral parts of the end head part 14a.

Fig. 16b unterscheidet sich von Fig. 16a dadurch, daß statt des Mitnehmers 45'' im Endkopfteil 14a eine Bohrung 24''' angeordnet ist, die zur Aufnahme der Ansätze 25 des Zahnriemens 16 dient. Der Befestigungsbereich 40' ist dabei als Flachstab ausgeführt. Die gesamte Konstruktion des Endkopfes 14a ist ein Gußteil.16b differs from FIG. 16a in that, instead of the driver 45 ″ in the end head part 14a, a bore 24 ″ ″ is arranged, which serves to receive the shoulders 25 of the toothed belt 16. The fastening area 40 'is designed as a flat bar. The entire construction of the end head 14a is cast.

Fig. 17a zeigt den zum Tragkörper 14a gemäß Fig. 16a zugehörigen Tragkörper 14d, in dessen Ausnehmungen 41' , 41", die Stecker des Endkopfteils 14a eingesetzt werden.FIG. 17a shows the support body 14d associated with the support body 14a according to FIG. 16a, in whose recesses 41 ', 41 ", the plugs of the end head part 14a are inserted.

Fig. 17b stellt die analoge Version des Tragkörpers 14d vor, der zur Aufnahme eines Endkopfteiles 14a gemäß Fig. 16b bestimmt ist. Der Befestigungsbereich 40' des Endkopfteiles 14a gemäß Fig. 16b wird dabei in die zur Befestigung dienende Ausnehmung 40a des Tragkörpers 14d eingesetzt. Die Ausnehmung 40a des Tragkörpers 14d erstreckt sich über die gesamte Länge des Tragkörpers 14d und wurde beim Strangpressen miterzeugt.FIG. 17b presents the analog version of the support body 14d, which is intended for receiving an end head part 14a according to FIG. 16b. The fastening area 40 'of the end head part 14a according to FIG. 16b is inserted into the recess 40a of the support body 14d which serves for fastening. The recess 40a of the support body 14d extends over the entire length of the support body 14d and was also produced during the extrusion.

Claims (50)

  1. Card top bar for a carding machine, which bar has a carrier member having a clothing-receiving portion and a rear portion, and in the case of which there are associated with the carrier member two end head parts that slide on a slideway and engage an endless drive element, the card top bars being returned again on their opposite side, and in the case of which the end head parts have at least one element that comprises at least one slide region, which touches the slideway, and at least one securing region that engages the carrier member of the card top bar and at the same time holds the slide region, characterised in that the drive element (16) engages with the elements (23; 23', 23", 23"'), the carrier member (14d) is an extruded section made of light metal, for example aluminium or a light metal alloy and at least the slide region (14b, 23V) of the element 23; 23', 23", 23"') comprises a wear-resistant material.
  2. Card top bar according to claim 1, characterised in that the element (23) is made in one piece.
  3. Card top bar according to claim 1 or claim 2, characterised in that the element (23) engages the carrier member (14d) directly.
  4. Card top bar according to claim 1 or claim 2, characterised in that the element (23) engages the carrier member (14d) in the are of the end face via an auxiliary carrier known per se.
  5. Card top bar according to any one of claims 1 to 4, characterised in that the element (23) is connected in unreleasable manner to the auxiliary carrier.
  6. Card top bar according to any one of claims 1 to 5, characterised in that each end head part (14a, 14a', 14a") has two elements (23).
  7. Card top bar according to any one of claims 1 to 6, characterised in that the element (23) is in indirect engagement with the flexible belt (16).
  8. Card top bar according to any one of claims 1 to 7, characterised in that the slide region (14b) of the element (23) is substantially linear.
  9. Card top bar according to any one of claims 1 to 8, characterised in that the slide region (14b) is in the form of a slide face (23V).
  10. Card top bar according to any one of claims 1 to 9, characterised in that the securing region (40) is a cylinder.
  11. Card top bar according to any one of claims 1 to 10, characterised in that the securing region (40) is a polyhedron.
  12. Card top bar according to any one of claims 1 to 11, characterised in that the elements (23) are secured in the end face (14h) of the base portion (14e) of the hollow extruded section (14d).
  13. Card top bar according to any one of claims 1 to 12, characterised in that the elements (23; 23', 23", 23"') are pins of hardened steel or the like.
  14. Card top bar according to any one of claims 1 to 13, characterised in that the slide face (14b, 23V) of the elements (23; 23', 23", 23"') is ground, fine-ground and/or polished.
  15. Card top bar according to any one of claims 1 to 14, characterised in that the securing regions (40) of the elements (23) are secured in recesses (25; 41', 41") in the carrier member (14d).
  16. Card top bar according to any one of claims 1 to 15, characterised in that the securing regions (40) of the elements (23; 23', 23", 23"') are secured in a drilled hole (25) in the end face (14h) of the carrier member (14d).
  17. Card top bar according to any one of claims 1 to 16, characterised in that the lower limit of the elements (23; 23', 23", 23"') is at a distance a above the base face (14e) of the carrier member (14d).
  18. Card top bar according to any one of claims 1 to 17, characterised in that the elements (23) are so arranged in working direction (D) at an angle α with respect to the longitudinal axis of the carrier member (14d) that their slide regions (14b, 23V) face away from the working direction (D) in relation to their securing regions (40).
  19. Card top bar according to any one of claims 1 to 18, characterised in that the extruded section (14d) is a hollow section.
  20. Card top bar according to any one of claims 1 to 19, characterised in that recesses (41', 42"; 43) are provided in the base portion (14e) of the extruded section (14d) and extend over the entire length.
  21. Card top bar according to any one of claims 1 to 20, characterised in that the recesses (21) extend parallel to one another.
  22. Card top bar according to any one of claims 1 to 21, characterised in that the recesses (41) have a through-slot (24).
  23. Card top bar according to any one of claims 1 to 22, characterised in that the cross-section of the recesses (41) is circular.
  24. Card top bar according to any one of claims 1 to 23, characterised in that a reinforcing member (34) is arranged in each of the recesses (41) between the elements (23).
  25. Card top bar according to any one of claims 1 to 24, characterised in that the cross-section of the recesses (41) is polygonal.
  26. Card top bar according to any one of claims 1 to 25, characterised in that the reinforcing member (34) is a steel section.
  27. Card top bar according to any one of claims 1 to 26, characterised in that at least one endless flexible belt (16) is provided for the advancement of the card top bars (14; 14'...14n), the outer side (16a) of the flexible belt (16) and the portion of the end head parts (14a; 14a', 14a") of the card top bars (14; 14'...14n) that does not touch the slideway (17) being in interlocking engagement with one another.
  28. Card top bar according to any one of claims 1 to 27, characterised in that a connecting member (24; 24a, 24b) is provided that is in engagement with the elements (23; 23', 23") and with the flexible belt (16).
  29. Card top bar according to any one of claims 1 to 28, characterised in that the connecting member (24) is secured at one end in or on the end face (14h) of the carrier member (14d).
  30. Card top bar according to any one of claims 1 to 29, characterised in that the elements (23; 23', 23") have a distance c between their free end faces and the connecting member (24).
  31. Card top bar according to any one of claims 1 to 30, characterised in that, on at least one card top bar (14), the connecting members (24; 24a, 24b) have bristles (28), brushes, resilient wiping elements or the like that are in cleaning engagement with the slideway (17).
  32. Card top bar according to any one of claims 1 to 31, characterised in that the upper area (14) of the base portion (14e) is arranged at an acute angle α to the vertical.
  33. Card top bar according to any one of claims 1 to 32, characterised in that the areas of the elements (23; 23', 23") that remain free at the top engage a support element (22) when the card top bars (14) are returned.
  34. Card top bar according to any one of claims 1 to 33, characterised in that the carrier member (14d) and the end head parts (14a; 14', 14a") form at least three assembled components.
  35. Card top bar according to any one of claims 1 to 34, characterised in that the flexible belts (16) engage the wear-resistant end head parts (14; 14a', 14a") directly.
  36. Card top bar according to any one of claims 1 to 35, in the case of which the carrier member and the end head parts are made in one piece, characterised in that the elements (23, 23', 23", 23"') are secured in or to the end head parts (14a; 14a', 14a").
  37. Card top bar according to any one of claims 1 to 34, in the case of which the carrier member and the end head parts are made in one piece, characterised in that the elements (23, 23', 23", 23"') have a wear-resistant covering, plating (30', 30") which is arranged on their slide region (14b).
  38. Card top bar according to any one of claims 1 to 37, characterised in that the elements (23) engage the flexible belt directly.
  39. Card top bar according to any one of claims 1 to 38, characterised in that the lower areas (14b) of the elements (23; 23', 23") slide on the slideways (17).
  40. Card top bar according to any one of claims 1 to 39, characterised in that the projection (44) of the connecting member (24) engages in the recess (26, 43).
  41. Card top bar according to any one of claims 1 to 40, characterised in that the connecting member (24) has a through drilled hole (24"') into which a projection (25a) of the toothed belt (16) engages.
  42. Card top bar according to any one of claims 1 to 41, characterised in that the connecting member (24) is secured, for example clamped or adhesively bonded, on the elements (23; 23', 23").
  43. Card top bar according to any one of claims 1 to 42, characterised in that the elements are connected to the recesses (25; 41, 41") by an interference fit.
  44. Card top bar according to any one of claims 1 to 43, characterised in that the elements (23) are connected to the recesses (25; 41', 41") by resilient clamping.
  45. Card top bar according to any one of claims 1 to 44, characterised in that the elements (23) are connected to the recesses (25; 41;, 41") by adhesive bonding.
  46. Card top bar according to any one of claims 1 to 45, characterised in that the evenness of the slide faces (23V) of a card top bar (14) is achieved by grinding the slide regions (14b) after the elements (23) have been connected to the carrier (14d).
  47. Card top bar according to any one of claims 1 to 46, characterised in that the end head parts (14a) are castings.
  48. Card top bar according to any one of claims 1 to 47, characterised in that the end head parts are injection mouldings.
  49. Card top bar according to any one of claims 1 to 48, characterised in that the carrier member is cut to length from an extruded section and pins are inserted as elements into its recesses.
  50. Card top bar according to any one of claims 1 to 49, characterised in that the connecting member is associated with the carrier member and/or pins.
EP93103971A 1992-04-30 1993-03-11 Flatbar for a carding machine Expired - Lifetime EP0567747B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE4214200 1992-04-30
DE4214200 1992-04-30
DE4304148A DE4304148B4 (en) 1992-04-30 1993-02-12 Flat bar for a card
DE4304148 1993-02-12

Publications (2)

Publication Number Publication Date
EP0567747A1 EP0567747A1 (en) 1993-11-03
EP0567747B1 true EP0567747B1 (en) 1997-08-06

Family

ID=25914399

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93103971A Expired - Lifetime EP0567747B1 (en) 1992-04-30 1993-03-11 Flatbar for a carding machine

Country Status (18)

Country Link
US (1) US5473795A (en)
EP (1) EP0567747B1 (en)
JP (1) JP3325946B2 (en)
KR (1) KR100254149B1 (en)
AR (1) AR247923A1 (en)
BR (1) BR9301699A (en)
CA (1) CA2095176C (en)
CH (1) CH687706A5 (en)
DE (2) DE4304148B4 (en)
ES (1) ES2085208B1 (en)
FR (1) FR2690693B1 (en)
GB (1) GB2266539B (en)
GR (1) GR930100169A (en)
HK (1) HK8497A (en)
IT (1) IT1272162B (en)
MX (1) MX9302572A (en)
NL (1) NL194399C (en)
RU (1) RU2109089C1 (en)

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US7162776B2 (en) 2002-11-06 2007-01-16 TRüTZSCHLER GMBH & CO. KG Apparatus in a spinning preparation machine for measuring distances at the flat bar clothing

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IT1283184B1 (en) * 1996-03-04 1998-04-16 Marzoli & C Spa HAT CARD WITH TOOTHED BELT TRACTION AND TOP GUIDE FOR HATS
DE59804953D1 (en) 1997-02-24 2002-09-05 Rieter Ag Maschf high-performance card
DE19825316B4 (en) * 1998-06-05 2009-11-26 TRüTZSCHLER GMBH & CO. KG Device on a card with wandering cover (revolving lid) made of clothed cover rods
US6269522B1 (en) 1998-11-24 2001-08-07 Graf & Cie Ag Method of operating a card and a card flat for carrying out the method
DE19854194A1 (en) * 1998-11-24 2000-05-25 Graf & Co Ag Method of operating a card
DE19923420A1 (en) * 1999-05-21 2000-11-23 Truetzschler Gmbh & Co Kg Device on a spinning preparation machine, e.g. B. card, cleaner or the like, for measuring distances on counter surfaces
IT1319761B1 (en) * 2000-12-28 2003-11-03 Marzoli Spa GUIDE CLEANING DEVICE FOR MOBILE HATS IN A HAT CARDAA
IT1319759B1 (en) * 2000-12-28 2003-11-03 Marzoli Spa DRIVING AND DRAGING SYSTEM OF THE MOBILE HATS IN A HAT
CN100507102C (en) * 2001-02-24 2009-07-01 里特机械公司 Clip for card clothing strips
DE50204305D1 (en) 2001-06-21 2005-10-27 Rieter Ag Maschf Locked snap connection between card cover and drive belt
DE10140304B4 (en) 2001-08-16 2014-02-06 Trützschler GmbH & Co Kommanditgesellschaft Device on a carding machine for cotton, man-made fibers u. Like. In the at least one flat bar is provided with a flat set and method for producing a flat bar
DE10214391A1 (en) 2001-09-21 2003-04-17 Truetzschler Gmbh & Co Kg Device on a card for cotton, man-made fibers and the like, in which there is at least one flat bar with a flat clothing
DE10203853C5 (en) * 2002-01-31 2010-10-14 Graf + Cie Ag Cover set for a card cover
CN101109116B (en) 2002-03-30 2011-10-05 特鲁菲舍尔股份有限公司及两合公司 Device on a carding machine
DE10216067A1 (en) * 2002-04-11 2003-10-23 Rieter Ag Maschf End cap made of polymer material
DE10229172B4 (en) 2002-06-28 2017-02-16 Trützschler GmbH & Co Kommanditgesellschaft Flat bar for a card, which has a support body and a detachable garment
DE10318966B4 (en) 2003-04-26 2015-03-12 Trützschler GmbH & Co Kommanditgesellschaft Device on a carding machine for textile fibers, e.g. Cotton, chemical fibers o. The like., Provided with trim surrounding flat rods
DE10358257B4 (en) * 2003-12-11 2015-03-12 Trützschler GmbH & Co Kommanditgesellschaft Flat bar for a card, which has a support body with a clothing receiving part, wherein the support body associated with two end head parts and methods for its preparation
US7111451B2 (en) * 2004-09-16 2006-09-26 Delphi Technologies, Inc. NOx adsorber diagnostics and automotive exhaust control system utilizing the same
CH713459A1 (en) * 2017-02-15 2018-08-15 Rieter Ag Maschf Method for operating a card and card.
CN108277559B (en) * 2018-03-20 2023-08-04 武汉纺织大学 Carding machine cover plate, carding machine and method for flexible carding spinning by using carding machine cover plate
KR20200135018A (en) * 2019-05-24 2020-12-02 주식회사 삼양바이오팜 Machine and method for preparing fibrous web, fibrillar fiber aggregate or nonwoven fabric, and fibrous web, fibrillar fiber aggregate or nonwoven fabric prepared thereby

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Also Published As

Publication number Publication date
CH687706A5 (en) 1997-01-31
NL194399B (en) 2001-11-01
MX9302572A (en) 1994-07-29
US5473795A (en) 1995-12-12
GB2266539A (en) 1993-11-03
NL9300556A (en) 1993-11-16
NL194399C (en) 2002-03-04
ITMI930600A1 (en) 1994-09-29
CA2095176A1 (en) 1993-10-31
RU2109089C1 (en) 1998-04-20
FR2690693A1 (en) 1993-11-05
JP3325946B2 (en) 2002-09-17
IT1272162B (en) 1997-06-11
KR930021840A (en) 1993-11-23
GB9308812D0 (en) 1993-06-09
KR100254149B1 (en) 2000-05-01
GB2266539B (en) 1996-10-09
JPH06166917A (en) 1994-06-14
DE59307043D1 (en) 1997-09-11
ES2085208R (en) 1997-06-01
DE4304148B4 (en) 2008-03-13
ITMI930600A0 (en) 1993-03-29
DE4304148A1 (en) 1993-11-04
GR930100169A (en) 1993-12-30
HK8497A (en) 1997-01-31
FR2690693B1 (en) 1995-01-06
ES2085208A2 (en) 1996-05-16
BR9301699A (en) 1993-11-03
CA2095176C (en) 2005-07-26
ES2085208B1 (en) 1998-01-01
EP0567747A1 (en) 1993-11-03
AR247923A1 (en) 1995-04-28

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