EP0620296B1 - Glissière de guidage pour carde à chapeaux mobiles - Google Patents

Glissière de guidage pour carde à chapeaux mobiles 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)
English (en)
Other versions
EP0620296A1 (fr
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
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Application filed by Maschinenfabrik Rieter AG filed Critical Maschinenfabrik Rieter AG
Publication of EP0620296A1 publication Critical patent/EP0620296A1/fr
Application granted granted Critical
Publication of EP0620296B1 publication Critical patent/EP0620296B1/fr
Anticipated expiration legal-status Critical
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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • 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
    • D01G15/28—Supporting arrangements for carding elements; Arrangements for adjusting relative positions of carding elements
    • D01G15/30—Bends
    • 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
    • D01G15/12—Details
    • D01G15/28—Supporting 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)

Claims (14)

  1. Une carde à chapeaux balladeurs avec deux segments flexibles (104;102;170;192;200) servant au guidage des extrémités des barreaux de chapeau (29) dans leurs positions de travail, et où chacun des segments flexibles est pourvu d'un élément en matière synthétique pour la formation d'une surface de glissement pour les barreaux de chapeau,
    caractérisée par le fait que
    chaque élément en matière synthétique comprend des tronçons (100;110;176;190;202;204) qui forment ensemble le guidage de glissement pour les barreaux de chapeau (182).
  2. Carde selon revendication 1,
    caractérisée par le fait que
    les tronçons (100;110;176;190;202;204) sont fixés individuellement sur les segments flexibles.
  3. Carde selon revendication 2,
    caractérisée par le fait que
    chaque tronçon (190) est relié d'une manière crabotée avec l'un des segments flexibles (192).
  4. Carde selon revendication 3,
    caractérisée par le fait que
    chaque tronçon (190) est relié sur toute sa longueur avec l'un des segments flexibles (192).
  5. Carde selon revendication 1,
    caractérisée par le fait que
    des tronçons sont formés respectivement fixés sur un porteur commun, et où le porteur est fixé sur l'un des segments flexibles.
  6. Carde selon une des revendications 1 à 5,
    caractérisée par le fait que
    la disposition est choisie de telle manière que, pendant le glissement le long du guidage, un barreau de chapeau touche simultanément une pluralité de tronçons.
  7. Carde selon une des revendications 1 à 6,
    caractérisée par le fait
    qu'un élément d'entrée (186) est prévu dans le lieu d'entrée, afin de déterminer la position angulaire d'un barreau de chapeau lors du premier contact avec les tronçons.
  8. Carde selon une des revendications 1 à 7,
    caractérisée par le fait que
    chaque tronçon (190) est formé comme une barre oblongue (190) qui est disposée transversalement à la direction longitudinale (RB) du segment flexible (192).
  9. Carde selon revendication 8,
    caractérisée par le fait que
    chaque barre (190) s'étend depuis un côté jusqu'à l'autre côté du segment flexible (192).
  10. Carde selon une des revendications 8 et 9,
    caractérisée par le fait que
    l'angle (W) compris entre la direction longitudinale (RB) du segment flexible (192) et la direction longitudinale (RS) de chaque barre (190) se situe entre 30° et 60°.
  11. Carde selon une des revendications 8 à 10,
    caractérisée par le fait que
    chaque barre (190) possède une forme trapézoïdale en section.
  12. Carde selon une des revendications 1 à 7,
    caractérisée par le fait que
    les tronçons (202) sont formés comme des plaques qui sont séparées l'une de l'autre par des distances (a).
  13. Carde selon une des revendications 8 à 12,
    caractérisée par le fait que
    les tronçons (100;110;176;190;202;204) sont disposés de telle manière que la saleté qui se dépose sur les surfaces de glissement des tronçons, est raclée par les barreaux de chapeau (29).
  14. Carde selon revendication 13,
    caractérisée par le fait que
    la saleté raclée tombe sur le segment flexible.
EP19940810198 1993-04-16 1994-04-05 Glissière de guidage pour carde à chapeaux mobiles Expired - Lifetime EP0620296B1 (fr)

Applications Claiming Priority (6)

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

Publications (2)

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

Family

ID=25686813

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19940810198 Expired - Lifetime EP0620296B1 (fr) 1993-04-16 1994-04-05 Glissière de guidage pour carde à chapeaux mobiles

Country Status (2)

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

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 (de) * 1994-10-24 1996-04-25 Rieter Ag Maschf Deckelantriebssystem

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB344220A (fr) * 1900-01-01
JPH01239119A (ja) * 1988-03-16 1989-09-25 Kurabo Ind Ltd 梳綿機およびフレキシブルベンド
DE4108921C2 (de) * 1991-03-19 2001-03-01 Truetzschler Gmbh & Co Kg Vorrichtung an einer Karde mit wanderndem Deckel aus mit Garnitur versehenen Deckelstäben
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 (de) 1999-07-15
EP0620296A1 (fr) 1994-10-19

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