EP3307932B1 - Peigne circulaire comprenant des sections de peigne et un corps de base - Google Patents

Peigne circulaire comprenant des sections de peigne et un corps de base Download PDF

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Publication number
EP3307932B1
EP3307932B1 EP16787454.4A EP16787454A EP3307932B1 EP 3307932 B1 EP3307932 B1 EP 3307932B1 EP 16787454 A EP16787454 A EP 16787454A EP 3307932 B1 EP3307932 B1 EP 3307932B1
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EP
European Patent Office
Prior art keywords
circular comb
base body
main body
tangential
combing
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Application number
EP16787454.4A
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German (de)
English (en)
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EP3307932A1 (fr
Inventor
Friedrich Henninger
Erwin Dorr
Richard Petrasek
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Staedtler and Uhl KG
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Staedtler and Uhl KG
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Publication of EP3307932A1 publication Critical patent/EP3307932A1/fr
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G19/00—Combing machines
    • D01G19/06—Details
    • D01G19/10—Construction, mounting, or operating features of combing elements
    • D01G19/105—Combing cylinders

Definitions

  • the invention relates to a circular comb for a combing machine for combing textile fibers and for attachment to a shaft of the combing machine which can be rotated about an axis of rotation.
  • Combs for use in combers are e.g. known in the form of circular or circular combs by prior public use, wherein comb elements are arranged on a circular comb base body, which are in engagement with the beard of the textile fibers to be combed.
  • a comb which is provided with combing elements along at least part of its circumference is referred to as a circular comb.
  • the active combing area can be, for example, 78 °, 90 °, 111 ° or 137 ° of the circumference of a surface line of the circular comb.
  • the combing elements can e.g. are needles, pinstripes, sawtooth wire sections, comb teeth or in particular sawtooth stampings.
  • combing bars which are sometimes also referred to as combing segments or combing sets.
  • Such a combing bar can e.g. several axially, i.e. in the direction of the axis of rotation, saw tooth punched parts arranged one behind the other, saw tooth wire sections or toothed disks provided with teeth.
  • CH 683 190 A5 describes a radially height-adjustable attachment of a circular comb base body provided with a plurality of combing bars to a roller or holding body of a combing machine.
  • the circular comb base is held by means of adjusting screws at a continuously adjustable radial distance from the roller or holding body. It is mentioned that, due to the adjustable holder, a concave bending of the circular comb can result with a corresponding change in position of the tooth tips.
  • FIG. 1 Further configurations of circular combs with a radially height-adjustable fastening of a circular comb base body provided with a plurality of combing bars on a shaft of a combing machine are known from the DE 297 20 656 U1 and the EP 2 789 716 A1 known.
  • a spacer element in the form of a washer is provided between the basic comb body and the shaft.
  • the circular comb base body has a recess on its inner side facing the shaft, in which a support element for supporting the circular comb base body is arranged on the shaft.
  • a circular comb for a comber comprises a multi-part circular comb base.
  • the latter has, inter alia, several base body segments connected tangentially via screws, each of which has a comb bar also arranged on the outer circumferential side of the circular comb base body, and each comb bar is clamped between two base body segments. The pressure required for this is applied via the screws.
  • BE 527 113 A describes a mechanism for fastening scratching brush segments on a hollow cylindrical scratching brush base body of a carding machine by means of a tangential tensile force.
  • the object of the invention is to provide a circular comb of the type mentioned at the outset with improved properties compared to the previously known embodiments.
  • the circular comb comprises a circular comb base body with an outer circumferential side, a plurality of comb bars arranged on the outer circumferential side of the circular comb base body, which in their entirety cover a comb circumferential angle segment and define a comb area of the circular comb, the circular comb base body being in several parts and several tangentially directly interconnected base body segments, wherein each comb bar is assigned one of the base body segments, and each comb bar is in particular mounted directly on the base body segment assigned to it.
  • the circular comb base body is equipped with tensile fastening means for fastening it on the shaft and these tensile fastening means are designed to apply a tangential tensile force to the circular comb base body in the state fastened on the shaft.
  • Each comb bar forms a subunit with a base body segment.
  • the base body segments which are arranged in particular tangentially one behind the other and of which at least some each carry a comb bar in particular directly, can in particular also be understood or referred to as fastening strips.
  • fastening strips there are at least as many basic body segments as combing bars.
  • the comb circumferential angle segment extends in particular over a tangential angular range of at most 150 °, in the case of a configuration with a total of six combing bars arranged tangentially one behind the other, for example over a tangential angular range of approximately 137 °, in the case of an embodiment with a total of five combing bars arranged one behind the other, for example over one tangential angular range of approximately 111 ° and in an embodiment with a total of four tangential one behind the other arranged combing bars, for example over a tangential angular range of approximately 90 °.
  • the base body segments can e.g. be connected to each other like a chain link.
  • the circular comb base body has, in particular, essentially the basic shape of a circumferential segment of a hollow cylinder, the cylinder axis of the hollow cylinder being a central longitudinal axis of the circular comb base body, in particular coinciding with the axis of rotation.
  • the location or direction information used here relates in particular to the axis of rotation of the shaft or a cylinder coordinate system defined by this axis of rotation.
  • axial stands for an orientation in the direction of the axis of rotation
  • radial for an orientation perpendicular to the axis of rotation
  • tangential for an orientation in the circumferential direction about the axis of rotation.
  • the tangential segmentation of the circular comb basic body means that the individual basic body segments can be manufactured considerably more easily and also with greater accuracy than a previously known and used one-piece circular comb basic body.
  • a narrow locally limited manufacturing inaccuracy such as a slight deviation from the specified radial dimensions or a slight twisting, can exist in the case of a one-piece circular comb basic body, with regard to the circular comb basic body provided with comb bars positioning accuracy of the tooth tips achievable in the comber not only at the location of the manufacturing accuracy, but practically everywhere within the combing area.
  • the negative impact due to leverage far from the actual fault location can be much greater than at the fault location itself.
  • a base body segment of the circular comb according to the invention can be produced much more easily with the required accuracy due to its smaller size.
  • the segmentation also prevents a locally limited inaccuracy anywhere in the combing area from influencing the positioning accuracy of the tooth tips. The propagation of errors is stopped at the segment boundaries at the latest.
  • a base body segment of the circular comb according to the invention can also be mounted on the shaft much more easily and with high precision than a known larger, one-piece circular comb base body.
  • the smaller partial contact surfaces of the segmented ones the lower contact surface of the circular comb according to the invention can each be created and assembled with greater precision on the counterpart in question than the larger uninterrupted contact surface of a known one-piece circular comb base body.
  • the contact forces acting on the lower partial contact surfaces of the individual base body segments in the assembled state of the circular crest are approximately the same.
  • no significant internal stress is formed within the molded parts of the base body segments and thus overall within the base body, which in turn favors a good alignment or a good nestling of the base body segments on the mating contact surface of the shaft or the shaft mounting body.
  • the tangential connection of the base body segments is favorable, since undesired tangential gaps or distances between tangentially adjacent combing bars are avoided in the final assembled state.
  • the combing action thus remains as intended. In particular comes there is no undesirable change or even an interruption of the combing action at the segment boundaries
  • the combing bars and the base body segments can also advantageously be preassembled before the circular comb is installed in the combing machine.
  • the combing bar placed on the base body segment and the relevant base body segment then in particular form a preassembled subunit of the circular comb. This pre-assembly facilitates the final assembly of the circular comb on site on the comber.
  • the segmentation of the circular comb base body reduces the space required for storage and transportation of the circular comb, since the basic body segments can be stacked or finished tightly in the unassembled state. Therefore a smaller packaging can also be used.
  • the circular comb according to the invention also leads to a reduction in logistics effort.
  • a sub-unit consisting of a base body segment and a single comb bar, in particular due to the smaller construction volume, can be assembled (in part) much more easily than an entire circular comb from a known one-piece circular comb base body and all of the comb bars to be placed thereon.
  • the (partially) assembled subunits are then assembled on site during installation in the comber to form the complete circular comb according to the invention. This inexpensive partial assembly is only made possible by the segmentation of the basic comb body.
  • the circular comb according to the invention with the segmented circular comb base body thus offers numerous advantages over known circular combs with a one-piece circular comb base body.
  • the circular comb according to the invention with the segmented circular comb base body can be easily retrofitted to existing combing machines, so that the advantages of the circular comb according to the invention described can also be used in older combing machines of this type.
  • the circular comb can be particularly precisely and with the radial position of all tooth tips of the comb bars desired in each case within the entire combing area, in particular essentially exactly Mount if the circular comb base body is subjected to a tensile force or tension when it is (indirectly or directly) attached to the shaft.
  • a tangential tensile force contributes significantly to the circular comb base body being pressed against the mating contact surface of the shaft or the shaft mounting body.
  • This counter-contact surface can also be referred to as a mounting surface.
  • Such warping or tensioning, as well as diameter tolerances, can be compensated for by the tensile force applied to the circular comb base body and thus also to the individual base body segments. Because of the tangential connection between the base body segments, the tangential tensile force or tensile stress applied to the circular comb base body acts on each of the base body segments and develops the advantageous effect described for each of the base body segments. This can reduce the effort involved in producing the base body segments. Certain manufacturing inaccuracies can also be retrofitted by applying a tangential tensile force when installing the Circular crest are balanced. The basic body segments can therefore be manufactured inexpensively.
  • a configuration in which the base body segments are detachably connected to one another is favorable. This simplifies assembly and increases flexibility in use.
  • the base body segments are positively connected to one another in particular at least in the tangential direction. This enables good power transmission between the basic body segments - and within the circular comb basic body as a whole - in this direction.
  • the base body segments for the tangential connection are equipped with a connection extension at a first tangential end and with a connection opening at a second tangential end, the connection extension and the connection opening corresponding to one another and the connection extension an undercut for tangential force transmission having.
  • the connecting extension provided with an undercut can in particular be designed as a web with a dovetail-shaped or round axial cross section on the tangential web end, the web preferably being an integral part of the relevant base body segment.
  • the tangential connection between two adjacent base body segments in the unassembled state allows the adjacent base body segments to move relative to one another in the radial direction by up to 0.3 mm, in particular by up to 0.1 mm.
  • This radial play of the tangential connection between two adjacent base body segments favors a to a certain extent individual placement of each of the base body segments on the mating contact surface of the shaft or of the shaft mounting body when mounting the circular comb in the combing machine.
  • the radial position can be changed somewhat from the main body segment to the main body segment. This advantageously achieves very good nestling of the base body segments on the mating contact surface of the shaft or of the shaft mounting body, which has a favorable effect on the radial position of the tooth tips of the combing bars.
  • all base body segments on which a combing bar is mounted are designed identically. This results in low manufacturing costs.
  • the base body segments which have a particularly strong influence on the radial position of the tooth tips of the combing bars and thus the combing radius and which should therefore be manufactured with particular accuracy, only a single precise shape is required, so that low molding costs result.
  • the circular comb base body has a comb-free base body end segment at its two tangential ends, which can be fastened with fastening means of the circular comb base body is equipped on the shaft.
  • the two main body end segments which are primarily intended for main body assembly, can then be manufactured in particular with lower accuracy requirements with regard to the radial dimensions and the shape accuracy of their lower partial contact surface, which in the final assembled state of the circular crest is intended to rest on the shaft or on the shaft assembly body . This leads to low manufacturing costs.
  • the circular comb base body has at each of its two tangential ends a base body end segment on which a comb bolt is mounted and which is equipped with fastening means for fastening the base body on the shaft.
  • the circular comb base body can be designed so that it is particularly light and has an advantageously low mass inertia.
  • At least some of the base body segments are equipped with spacing means for fastening to the shaft with variable spacing in the radial direction.
  • spacing means are not absolutely necessary in the circular comb according to the invention in order to obtain a desired combing radius in the final assembled state, there may be installation or assembly situations in which additional measures for radial height adjustment, in particular in the form of the said spacing means, are nevertheless useful.
  • Such a situation is, for example, the conversion of an existing comber with the aim, among other things, of increasing the combed quality.
  • the circular comb base body has an inner circumferential side and the spacing means are designed as at least one washer that is fixed, but in particular detachable, mounted or loosely fitted on the inner circumferential side.
  • the washer is in particular designed as a thin, preferably bendable sheet.
  • the washer has a tangential extension of, in particular, at most that of the base body segment against which it lies.
  • the washer has a larger tangential extension than each of the base body segments.
  • the washer can extend in the tangential direction, in particular over two or more of the base body segments, in extreme cases also over all base body segments.
  • the radial height adjustment by means of the washer works particularly well with the circular comb according to the invention, in particular better than with circular combs with a one-piece circular comb base body.
  • an outer diameter of the counter-contact surface of the shaft or the shaft mounting body, which is often in the form of a cylindrical segment, and the inner diameter of the lower contact surface of the circular comb base body, which is then at least substantially in the form of a hollow cylinder segment, are matched to one another. This outer diameter and this inner diameter are often the same size or at least approximately the same size.
  • a washer is inserted between the counter-contact surface and the lower contact surface to adjust the height, the cylindrical surface geometries determined to be in contact with one another no longer match exactly. If the washer is assigned to the circular crest as shown here, inserting the washer reduces the overall inner diameter that then results on the inner circumferential side of the circular crest, so that a circular comb equipped with a one-piece circular comb base body no longer lies closely against the mating contact surface everywhere. In the worst case, there are only two narrow contact areas at the two tangential ends of the circular crest. In contrast, the one-piece circular comb base is not in contact.
  • the circular comb base body has an inner circumferential side and at least some of the base body segments on the inner circumferential side are equipped with fastening means for, in particular, releasably fastening an underlay element.
  • fastening means for, in particular, releasably fastening an underlay element.
  • the base body segments are made of aluminum with a tensile strength of in particular up to 310 N / mm 2 . Due to the smaller dimensions of the base body segments compared to a known one-piece circular comb base body, the (extrusion) shape used for production is also smaller. As a result, it is advantageously possible to use a material with a higher tensile strength, in particular up to the stated value. The use of a material with a higher tensile strength enables, in particular, the production of particularly small and / or light base body segments, without thereby sacrificing the mechanical properties go hand in hand.
  • the base body segments are in particular extruded and preferably in the form of extruded aluminum profiles.
  • the accuracy or dimensional accuracy of the extrusion process is so good that post-processing of the critical locations, i.e. the locations necessary for the radial distance of the combing bar arranged on the base body segment from the shaft and / or from the pliers unit of the comber are decisive, is not necessary.
  • the base body segments which are preferably designed as extruded aluminum components, are therefore advantageously ready for use without reworking.
  • the circular comb base body has an inner circumferential side and the tensile fastening means are at least partially as at least one on the inner circumferential side (in particular radially) inwards, ie towards the axis of rotation, or one that projects outwards and in particular on the outer circumferential side (in particular radially) formed with an undercut tensile fastening projection, in particular two tensile fastening projections are present, one of which is preferably arranged at one of the two tangential ends of the circular comb base body.
  • Such pull fastening projections allow a simple application of tension to the circular comb base body.
  • the tension fastening projection can be equipped with a contact or contact surface that is oblique to the radial direction, so that the tension applied has both a tangential and a radially inward directional component.
  • the fastening means are at least partially designed as at least one fastening contact surface, and runs a surface normal of the fastening contact surface, which is designed in particular as a conical surface, preferably as an inner circumferential surface of a conical bore, both with respect to the radial direction with respect to the axis of rotation and with respect to the axis of rotation tangential direction inclined or tilted.
  • the surface normal of the fastening contact surface with the radial and the tangential direction in each case closes an angle from the open angle range] 0 °; 90 ° [and preferably from the angular range [15 °; 75 °] a.
  • Such an inclined or tilted fastening contact surface allows a simple application of tensile stress to the circular comb base body.
  • the fastening means can at least partially also be designed as radially extending through bores in the circular comb base body on at least one of its two tangential end regions, at least some of the through bores each having a bore cross-sectional area in the form of a conical seat that receives a tapered screw head of a tension fastening screw in the shape of a conical seat toward the outer circumferential side has, so that in turn advantageously a tangential tensile force results on the circular crest base body when the tension fixing screws are fitted.
  • Every through hole has in particular in each case a through-bore longitudinal axis running essentially in the radial direction.
  • the fastening means are at least partially designed as base body threaded bores for screwing in tension fastening screws, the base body threaded bores starting from a radial boundary surface on at least one of the two tangential ends of the circular comb base body, in particular as blind holes in the circular comb base body extend into it.
  • Such base body tapped holes allow a simple application of tension to the circular comb base body.
  • the fastening means are at least partially designed as at least one receiving lug integrally formed on one of the two tangential ends of the circular comb base body with an eyelet through opening extending in the direction of the axis of rotation for releasably pushing through a rotatable eccentric tensioning rod.
  • a receiving eye can be attached to the circular comb base body with little effort.
  • it also enables the application of tensile force to the circular comb base body in a simple manner.
  • each of the base body segments to which a comb is assigned there are at least two external contact strips that run axially in the direction of the axis of rotation and are tangentially spaced apart with respect to the axis of rotation, the combing contact surfaces on which the each of the combing bars is in contact. Furthermore, at one The inner circumferential side of each of these base body segments is provided with inner contact strips which extend axially in the direction of the axis of rotation, project radially inward with respect to the axis of rotation and are spaced apart tangentially with respect to the axis of rotation and which provide the only shaft mounting contact surfaces of the respective base body segment for direct or indirect Attach to or connect to the shaft.
  • At least some of the external contact strips are each assigned to one of the internal contact strips and each form a pair of strips with the latter. Furthermore, the outer contact strip and the inner contact strip of each of the pairs of strips overlap at least partially in their tangential extension, and at least two pairs of strips are present for each base body segment to which a combing bar is assigned.
  • the circular comb can be mounted with a particularly precise and, within the entire combing area, in particular essentially exactly the radial desired constructional position of all tooth tips of the combing bars, if pairs with contact surfaces, in particular radially opposite one another, on the inner and outer peripheral side of the base body segments, which preferably have at least partially matching tangential positions and / or position ranges are present.
  • the combing bars are located in particular on the contact surfaces formed by the outer contact strips immediately. For this reason, these contact surfaces are also referred to as combing contact surfaces.
  • the contact surfaces are formed by the inner contact strips projecting in particular in the direction of the axis of rotation.
  • the inner contact strips thus represent in particular protruding projections.
  • these inner contact strips form the only and / or in particular exclusive contact surfaces on the inner circumferential side of the circular comb base body for mounting the base body segments on the shaft.
  • the circular comb base body with these shaft mounting contact surfaces can either lie directly on the shaft or by means of at least one additional mounting component arranged in between, such as e.g. are only indirectly connected to the shaft by means of a shaft mounting body, in particular a holding flange or holding body.
  • Apart from the shaft mounting contact surfaces at least within the combing area there is no further contact between the circular comb base body on the one hand and the shaft or an additional mounting component on the other hand. The tangential spaces between two adjacent inner contact strips are therefore in particular contact-free.
  • the outer contact strip and the inner contact strip of a pair of strips are preferably located radially opposite one another.
  • the external contact strip has in particular at least one external contact strip sub-area, which corresponds in its tangential position and extent to at least one internal contact strip sub-region of the internal contact strip. These partial areas of the outer and inner contact strips of a pair of strips that overlap each other tangentially lie radially opposite one another.
  • At least two, in particular two to ten, preferably two to five such pairs of strips are present for each base body segment to which a combing bar is assigned.
  • Within such base body segments there are at least two partial areas with a continuous (uninterrupted) material connection in particular in the radial direction between the inner and the outer peripheral side.
  • These partial areas with a continuous material connection, in particular in the radial direction, open on the inner and outer circumferential sides into the contact surfaces of the respective base body segment formed by the outer contact and inner contact strips to the associated comb bar or in the direction of the shaft.
  • a radial connection distance to the shaft is thus very precisely defined for each comb bar at at least two tangentially spaced locations.
  • connection distance is particularly determined by the radial distance between the contact surfaces on the outer and inner contact strips. It can therefore already be set during the manufacture of the base body segments by producing the external and internal contact strips. Even if, due to one of the production steps, the base body segments should still have a slight mechanical twist or tension or their diameter should have a slight tolerance or inaccuracy of, for example, up to ⁇ 2%, this advantageously has no negative influence on the ultimately assembled state of the Circular comb resulting radial positions of the tooth tips of the comb bars. Such warping or tensioning as well as diameter tolerances can be compensated for by means of the internal contact strips due to the only area-wise or singular contacting of a mounting surface.
  • This favorable torsion or tension compensation and / or the compensation of diameter tolerances can or can be achieved in particular by that the base body segments of the circular comb base body are acted upon by a suitable, preferably tangential, tensile stress during (indirect or direct) attachment to the shaft. In this respect, too, the effort involved in producing the base body segments can be reduced. Certain manufacturing inaccuracies can also be compensated for later when assembling the circular comb.
  • the base body segments can therefore be manufactured inexpensively.
  • the outer and inner contact strips are attached to the same component, namely the respective base body segment, the correspondence of the tangential position / extension of the mutually assigned outer and inner contact strips of each of the pairs of strips can already be achieved during the manufacture of the base body segment be ensured. At this stage, this is associated with comparatively little effort despite the very high positional accuracy that can be achieved. In contrast, there would be a higher effort if - which would also be possible in principle - the mutually assigned outer and inner contact strips are attached to different components and the correspondence of the tangential position / expansion only at a later stage, e.g. is only ensured during assembly of the base body segments on the shaft.
  • a further embodiment is favorable, in which exactly two pairs of strips are present for each base body segment to which a combing bar is assigned.
  • each combing bar has a mechanically defined bearing and support towards the shaft.
  • such a basic body segment can be produced particularly inexpensively, since high accuracy requirements can then only be met with two dimensions.
  • edge strip pairs are provided for each base body segment to which a comb is assigned, with each of the edge strip pairs a tangential distance from a tangential segment edge of the relevant base body segment being in particular smaller than a tangential distance between the two edge strip pairs.
  • the edge strip pairs can in particular also be arranged exactly on the tangential bar edge, i.e. border directly on the tangential transom edge.
  • the outer contact strip and the inner contact strip are each arranged tangentially at the same position and have the same tangential extension.
  • the mutually assigned outer and inner contact strips and also the contact surfaces formed by them on the outer and inner circumferential surface of the relevant base body segment lie exactly radially opposite one another, which means that the combing bar assigned to this base body segment is particularly efficiently supported and supported to the wave results.
  • the projections of the inner contact strips have a radial projection height, measured perpendicular to the axis of rotation, of between 0.25 mm and 5 mm, in particular between 0.5 mm and 2 mm.
  • this height is high enough that any mechanical twists or tension or diameter tolerances of the relevant base body segment during assembly, for example can be compensated by a corresponding tensile load, and on the other hand not so high that mechanical instabilities occur.
  • the projections of the inner contact strips have a radial projection height, measured perpendicular to the axis of rotation, of between 0.25 mm and 35 mm, in particular between 0.5 mm and 25 mm.
  • the base body segments in the assembled state are in particular in direct contact with the shaft and then preferably have a relatively large radial extent, in order in particular to meet the requirements for the radial distance of the tooth tips from the axis of rotation.
  • the projection height can also assume larger values of, for example, more than 10 mm and in particular up to a few 10 mm.
  • the invention also relates in particular to a circular comb unit for a combing machine for combing textile fibers, this circular comb unit comprising a shaft rotatable about an axis of rotation and a circular comb according to the invention fastened to the shaft or one of the advantageous embodiments of this circular comb according to the invention also described above.
  • the circular comb unit has at least one mounting surface, which is arranged concentrically to the axis of rotation and against which the circular comb base body rests with its inner circumferential side, for fastening the circular comb according to the invention or its favorable configurations to the shaft.
  • the mounting surface can in particular be a smooth (ie not provided with a surface structure) cylindrical segment-shaped surface, which is in particular free of projections or depressions. It can either be in particular part of the shaft or in particular part of an at least partially between the shaft and the circular comb base body placed fastening mechanism. In this respect, the attachment of the circular comb base body to the shaft can in particular be designed indirectly or directly.
  • the mounting surface in the form of a cylindrical segment has a high concentricity and / or rotational symmetry with respect to the axis of rotation.
  • the mounting surface fulfills the basic tolerance level IT7 according to the standard DIN ISO 286-1: 1990-11 or according to the successor version EN ISO 286-1: 2010-11.
  • the mounting surface can also be a surface which is provided with a surface structuring and which has a basic cylindrical segment shape which in particular has additional projections and / or depressions.
  • the circular comb unit according to the invention essentially has the same advantages that have already been described above in connection with the circular comb according to the invention and its favorable configurations.
  • FIG. 1 A first exemplary embodiment of a circular comb unit 1 of a combing machine for combing textile fibers is shown.
  • the circular comb unit 1 comprises a circular comb 2, a fastening mechanism 3 and a shaft 5 rotatable about an axis of rotation 4.
  • the axis of rotation 4 can in particular also be understood as the central longitudinal axis of the circular comb unit 1.
  • a cylinder coordinate system with an axial direction z oriented along the axis of rotation 4, with a direction r oriented in the direction of the distance from the axis of rotation 4 and with a tangential pointing in the circumferential direction about the axis of rotation 4 Direction ⁇ defined.
  • the circular comb 2 is fastened on the rotatable shaft 5 by means of the fastening mechanism 3.
  • the circular comb 2 comprises a circular comb base body 6 with an outer circumferential side 7 and an inner circumferential side 8 as well as several comb bars 9 with comb teeth 10 arranged on the outer circumferential side 7 in the exemplary embodiment shown, which are intended for meshing engagement in the fiber beard of the textile fibers.
  • the combing bars 9 can be constructed differently.
  • the comb teeth 10 of the combing bar 9 can have different shapes and spacings and can be present in different numbers.
  • the tooth tips 11 of the comb teeth 10 are at a distance from the axis of rotation 4, referred to as the combing radius KR.
  • the tooth tips 11 are spaced from a lower edge of an upper pliers 12 by a pair of pliers D.
  • the upper pliers 12 together with a lower pliers 13 form a pliers unit 14 of the comber.
  • the fiber beard (not shown) of the textile fibers to be combed is held.
  • the more precise and uniform the distance between pliers D within the entire combing area of the circular comb 2 the closer the tooth tips 11 can be moved to the lower edge of the upper pliers 12 and the better and more constant the combing result that can then be achieved.
  • the combing area of the circular comb 2 is defined by the entirety of the combing bars 9.
  • the entirety of the combing bars 9 cover a combing circumferential angle segment KS which forms the active combing region and which can assume a value of 78 °, 90 °, 111 ° or 137 °, but also other values from the range between 75 ° and 150 °.
  • the combing circumferential angle segment KS covers an angular range of approximately 111 °.
  • the distance between pliers D moves in the range between 0.15 mm and 0.9 mm. In the Fig.
  • the circular comb unit 1 shown and the associated circular comb 2 are characterized by a particularly precise, uniform and positionally accurate combing radius KR, at least of the tooth tips 11 of all combing bars 9 that are the most radially distant from the axis of rotation 4, so that these tooth tips 11 in the circular comb unit 1 and in the Compared to conventional circular comb units, the further circular comb units described below can advantageously be placed closer to the pliers unit 14 in particular by up to 0.2 mm.
  • the distance between pliers D is between 0.2 mm and 0.3 mm, and this is preferably within the entire combing area. Accordingly, a very low tolerance value of only about 0.1 mm is advantageously given over the combing area as a whole, which could not previously be achieved with conventional circular comb units.
  • the circular comb 2 and in particular its circular comb base body 6 are designed in a special way.
  • the circular comb base body 6 is segmented and is composed of several components in the form of base body segments 15, 16 and 17.
  • the circular comb base body 6 comprises a total of five base body segments which are connected tangentially to one another, namely the three central base body segments 15 of identical construction and the two base body end segments 16 and 17 arranged at the tangential ends, each of which has an integrally molded-on tension attachment projection 16a and 17a are provided.
  • One of the combing bars 9 is fastened to each of the base body segments 15 to 17.
  • the preferably direct tangential connection between two mutually adjacent base body segments 15 to 17 is in each case releasable and designed in a positive manner in the tangential direction.
  • the base body segments 15 and 16 each have a tangential end an integrally molded connection extension 18 and the base body segments 15 and 17 at their other tangential end each have a connection opening 19 corresponding to the connection extension 18 and widening inside.
  • the tangential positive connection results from an undercut 20 engaging in the widening of the connection opening 19 concerned here as webs with a connecting extensions 18 designed on the tangential web end with a dovetail-shaped axial cross section.
  • the undercut connecting extension 18 of one of the base body segments 15 and 16 is inserted axially into its widening connection opening 19 to form the tangential positive connection with its adjacent base body segment 15 or 17. The result is an especially chain link-like connection of the base body segments 15 to 17.
  • the tangential interlocking connections between two mutually adjacent base body segments 15 to 17 have a radial play of e.g. up to about 0.2 mm.
  • a radial play of e.g. up to about 0.2 mm.
  • a section of a further exemplary embodiment of a circular comb 21 with a segmented circular comb base body 22 is shown.
  • the base body segments 23 of the circular comb base body 22 are equipped with somewhat differently designed connection extensions 24 and corresponding other connection openings 25.
  • the connecting extension 24 also has an undercut 26 and the connecting opening 25 also has an interior widening, so that in the case of the circular comb base 22 as well as the circular comb 6 there is a tangential positive connection between two adjacent ones of the basic segments 23 or in any case can be produced.
  • the connection extension 24 formed on a tangential end on the base body segment 23 has the shape of a web with a round axial cross section on the tangential web end.
  • the base body segments 23 of the circular comb base body 22 each have defined and in particular singular contact surfaces both with their associated comb bar 9 and with a mounting surface 27 of the fastening mechanism 3 (here multi-part in the axial direction).
  • Each base body segment 23 has on its outer circumferential side 7, inter alia, two outer contact strips 28 and 29 which extend in the axial direction z and are spaced apart from one another in the tangential direction ⁇ . Between the two external contact strips 28 and 29 there is a depression 30 with a radially projecting fastening lug 31.
  • the external contact strips 28 and 29 form combing contact surfaces on which the relevant combing bar 9 is present.
  • the fastening lug 31 encompasses a corresponding bar holding projection 32 of the comb bar 9.
  • the base body segment 23 is also provided with contact strips, namely with the inner contact strips 33 and 34.
  • the latter also extend axially in the direction of the axis of rotation 4, jumping radially inwards, i.e. in particular in the direction of the axis of rotation 4, and are spaced apart tangentially by a recess 35.
  • the inner contact strips 33, 34 are formed by projections on the inner circumferential side 8. They represent the only contact surfaces of the base body segment 23 to the mounting surface 27 of the fastening mechanism 3 provided for fastening to the shaft 5. In this respect, these inner contact strips 33, 34 form shaft mounting contact surfaces.
  • the inner contact strips 33, 34 serve an indirect connection to the shaft 5.
  • the inner contact strips 33, 34 can also bear directly on the shaft 5 and thus form a direct connection with it.
  • the circumferential surface of the shaft 5 then forms the mounting surface on which the circular comb base body bears with its inner circumferential side 8.
  • Each of the two external contact strips 28, 29 is assigned to one of the two internal contact strips 33, 34.
  • the external contact strip 28 and the associated internal contact strip 33 as well as the external contact strip 29 and the assigned internal contact strip 34 each form a pair of strips 36 and 37, respectively.
  • the external contact strip 28 and the internal contact strip 33 of the pair of strips 36 assigned to it lie opposite one another. They overlap at least partially in their respective tangential dimensions. The same applies to the outer contact strip 29 and the inner contact strip 34 of the second pair of strips 37.
  • the circular comb base body 22 in the region of the pair of strips 36, 37 each has a continuous material connection or bridge in the radial direction r between those on the outer circumferential side 7 and on the inner circumferential side 8 provided contact surfaces to the comb 9 or to the mounting surface 27.
  • the radial distances d 1 and d 2 between these outside and inside contact surfaces of the circular comb base body 22 can be set and manufactured very precisely. This also applies if the circular comb base body 22, as in the exemplary embodiment shown, is designed as an extruded aluminum profile which, among other things, is anodized for hardening purposes and has a tensile strength of up to 310 N / mm 2 .
  • the segmented circular comb base body 22 shown is thus an inexpensive component which, however, at the same time, with the mutually opposite external contact strips 28, 29 and internal contact strips 33, 34 of the pairs of strips 36, 37, has highly precise radial spacing dimensions d 1 , d 2 .
  • the spacing dimensions d 1 , d 2 each have a value of between 5 mm and 10 mm, in particular between 6 mm and 8 mm and preferably about 7 mm.
  • the two pairs of strips 36, 37 are each a pair of edge strips, which are each arranged close to a tangential bar edge 38 or 39.
  • the tangential distance ⁇ 1 of the pair of strips 36 from the locking edge 38 and the tangential distance ⁇ 2 of the pair of strips 37 from the locking edge 39 are each smaller than a tangential distance ⁇ 3 between the two pairs of strips 36, 37.
  • a circular comb unit 40 of a combing machine with a circular comb 41 which can be tangentially clamped to the shaft 5 and which likewise comprises a segmented circular comb base body 42.
  • the latter has six basic body segments 43, 44 and 45, each equipped with a combing bar 9, of which the four central basic body segments 43 are identical in construction and the two tangential basic body end segments 44 and 45 are each provided with a one-piece molded fastening attachment 46 and 47, respectively are.
  • the comb circumferential angle segment KS covers an angular range of approximately 137 °.
  • Adjacent to the base body segments 43 to 45 are in turn tangentially connected directly and positively to one another.
  • This also releasable positive connection is in the segmented circular comb base 42 is realized by hook-like and in particular undercut connection projections 48 and 49 formed on the tangential ends of the base body segments 43 to 45, the connection projections 48 and 49 engaging adjacent ones of the base body segments 43 to 45.
  • the radial play described in connection with the segmented circular comb base body 6 between adjacent ones of the base body segments 43 to 45 is also present in these form-fit connections.
  • the circular comb 41 also has an alternative fastening of the six combing bars 9 on the base body segments 43 to 45.
  • the circular comb 41 also has an alternative fastening of the six combing bars 9 on the base body segments 43 to 45.
  • In the depression 30 between the two external contact strips 28 and 29 of the pairs of strips 36, 37 which are also present in this exemplary embodiment for contacting the adjacent components projecting fastening lugs 50, 51 with tangentially oppositely oriented oblique nose holding surfaces 52, 53, which abut corresponding oblique bolt holding surfaces 54, 55 of the relevant comb bar 9 and thus securely fix the comb bar 9 to the respective base body segment 43, 44 or 45.
  • the two fastening lugs 50, 51, with their oppositely oriented oblique nose holding surfaces 52, 53 form a dovetail-like fastening geometry.
  • the base body segments 43 to 45 have on their inner circumferential side 8, in addition to the inner contact strips 33, 34 of the pairs of strips 36, 37, in particular in the area of the fastening lugs 50, 51 protruding on the outer circumferential side 7, each have an additional internal contact strip 56. These further internal contact strips 56 are optional . They provide an additional support function.
  • FIG. 4 A further exemplary embodiment of a circular comb unit 57 of a combing machine with a circular comb 58 fastened tangentially clamped to the shaft 5, which likewise also comprises a segmented circular comb base body 59, is shown.
  • the latter has five central structurally identical main body segments 60, each equipped with a comb bar 9, and at its two tangential ends two main body end segments 61 and 62, which are not provided with comb bars, but each have an integrally molded pull-fastening attachment 63 or 64.
  • Adjacent to the base body segments 60 to 62 are in turn connected tangentially directly and positively to one another, a dovetail-shaped connection geometry being provided as in the segmented circular comb base body 6 according to FIG Fig. 1 .
  • the tooth tips 11 can be very uniform, in particular due to the segmented circular comb base bodies 6, 22, 42 and 59 provided in each case, i.e. with essentially the same comb radius KR, and position very precisely.
  • the circular comb base bodies 6, 22, 42 and 59 are equipped with tension fasteners.
  • the latter are designed as tension fastening projections 65 and 66 projecting outward on the outer circumferential side 7.
  • the pull mounting tabs 65 and 66 are respectively on the train attachment lugs 16a and 17a ( Fig. 1 ), 46 and 47 ( Fig. 3 ) and 63 and 64 ( Fig. 4 ) of the base body end segments 16 and 17 ( Fig. 1 ), 44 and 45 ( Fig. 3 ) and 61 and 62 ( Fig. 4 ) arranged and in particular integrally molded components thereof.
  • the fastening mechanism 3 is provided for fastening the shaft and applying tensile force. It comprises several components, not all of which are shown in the figures.
  • the fastening mechanism 3 has a plurality of holding bodies 67 arranged axially one behind the other and designed as holding plates, the narrow side of which has the shape of a cylinder segment.
  • These narrow sides of all holding bodies 67 together form the multi-part mounting surface 27, on which the circular comb base bodies 6, 22, 42 and 59 rest in the manner described above, in particular with their internal contact strips 33, 34.
  • the plate-shaped holding bodies 67 are designed as aluminum injection-molded or aluminum die-cast components, which results in a low weight.
  • the narrow cylindrical sides of the holding bodies 67 forming the mounting surface 27 are manufactured precisely and true to size.
  • the fastening mechanism 3 contains two retaining clips 68 and 69. Both retaining clips 68 and 69 terminate in a hook shape at their upper end, as a result of which a clip nose 70 and 71 is formed, which engages with the relevant cable attachment projection 65 and 66, respectively.
  • the clip nose 70 or 71 can also engage in an undercut which may be present on the tension fastening projection 65 or 66.
  • an oblique engagement surface can be provided on the pull fastening projection 65 or 66 and a corresponding oblique engagement counter surface, which corresponds to this, can also be provided on the associated clip nose 70 or 71 abut each other.
  • the holding clamps 68 and 69 can be shifted in position by means of clamp screws 72 and 73.
  • the exact positioning, storage and number of clamp screws 72 and 73, which are also components of the fastening mechanism 3, can vary depending on the application and type of combing machine.
  • a counterweight 74 attached to the shaft 5.
  • the attachment to the shaft 5 is carried out by means of a clamp and / or screw connection, not shown.
  • the counterweight may not be part of the fastening mechanism 3, but may be provided independently of it.
  • the positions of the holding clamps 68 and 69 and in particular that of the clamp lugs 70 and 71 can be changed, in particular in such a way that the desired tangential tensile force F 1 is exerted on the relevant circular comb base body 6, 22, 42 and 59 .
  • the forces by means of which the clamp lugs 70 and 71 engage or pull on the pull fastening projection 65 or 66 can preferably be changed continuously and adjusted according to the desired specifications.
  • the relevant circular comb base body 6, 22, 42 and 59 including its base body segments 15-17, 23, 43-45 and 60-62, is subjected to an adjustable tangential tensile stress.
  • the applied tangential tensile force F 1 in connection with the segmentation of the circular comb base bodies 6, 22, 42 and 59 causes each of the base body segments 15-17, 23, 43-45 and 60-62 in accordance with the particular nestles individually on the mounting surface 27 exclusively at the location of the relevant basic body segment 15-17, 23, 43-45 or 60-62.
  • Small deviations between adjacent basic body segments 15-17, 23, 43-45 or 60-62 are caused by the radial play of the tangential positive connection between adjacent basic body segments 15-17, 23, 43-45 or 60-62. 62 balanced.
  • the tangential tensile force F 1 which acts equally at each circumferential position and due to the tangential connection within each of the base body segments 15-17, 23, 43-45 or 60-62, leads to a (slight) expansion of the relevant circular comb base body 6 , 22, 42 and 59 in the tangential direction ⁇ , which preferably additionally favors a close fitting of the base body segments 15-17, 23, 43-45 or 60-62 to the mounting surface 27, in particular by any unintentionally arising during the manufacturing process minor tensions or twists or diameter tolerances of the base body segments 15-17, 23, 43-45 or 60-62 can be compensated.
  • the tangential tensile stress or tensile force F 1 in connection with the close fitting of the circular comb base 6, 22, 42 and 59 in question to the mounting surface 27, advantageously also leads to the circular comb base 6, 22, 42 and 59 in question acting radially inward pressing force, so that in particular the fastening lugs 31 and 50, 51 are pulled inwards and thereby against the corresponding locking retaining projection 32 or against the Corresponding bar holding surfaces 54, 55 of the relevant bar 9 are pressed.
  • the force exerted by the fastening lugs 31 or 50, 51 on the bolt holding projection 32 or on the bolt holding surfaces 54, 55 can preferably be so great that separate other fastening means, such as fastening strips and / or screws, for fastening the combing bolts 9 can be omitted on the relevant of the circular comb base 6, 22, 42 and 59. This results in assembly and cost advantages. This aspect in itself also represents a separate invention.
  • FIG. 5 A section of a circular comb unit 75 is shown, which contains a circular comb 76 with a segmented circular comb base body 77. Only the area of the one tangential end of the circular crest 76 is shown, in which tensile fastening means for the tangentially tensioned fixing of the segmented circular crest base body 77 to the shaft 5 are present. These pull fasteners are designed differently than those of the circular combs 2, 21, 41 and 58.
  • a tension bearing 80 is placed on in Fig. 5 shown tangential base edge 78 of the circular comb base 77 or its base end segment 79.
  • a tension bearing 80 is placed on in Fig. 5 shown tangential base edge 78 of the circular comb base 77 or its base end segment 79.
  • This at least one base body threaded bore 81 provides a tensile fastening means of the circular comb base body 77.
  • the fastening mechanism 3a in this exemplary embodiment comprises a tension-screw anchoring block 82 and at least one tension-fastening screw 84 which is inserted through a through-hole 83 provided in the tension-screw anchoring block 82.
  • the tension-screw anchoring block 82 extends radially outward from the mounting area 27 of the holding body 67 outside the meshing area . It is attached to the holding body 67 in a suitable manner.
  • the circular comb base body 77 can be subjected to the desired tangential tension or tensile force F 1 by screwing the tension fastening screw 84 more or less far into the base body threaded bore 81.
  • FIG. 6 A section of a further circular comb unit 85 is shown, which contains a circular comb 86 with a segmented circular comb base body 87. Again, only the traction fastening means for the tangentially tensioned fixing of the circular comb base body 87 to the shaft 5 comprising the area around the one tangential end of the circular comb 86 is shown.
  • the fastening mechanism 3b provided for fastening the circular comb base body 87 on the shaft 5 here has a holding body 67 with a sufficient axial thickness to accommodate a plurality of threaded bores 88 placed axially one behind the other, each for screwing in tension fastening screws 89, each having a conical head 90.
  • the circular comb base body 87 In the base body end segment 91 of the circular comb base body 87 there are 78 through bores 92 in the region of the tangential base body edge are present, which expand conically towards the outer circumferential side 7 and have the shape of a conical seat at least in this outer region.
  • the circular comb base body 87 In the final assembled state, the circular comb base body 87 is in any case partially fastened to the mounting surface 27 of the holding body 67 by means of the tension fastening screws 89 inserted through the through bores 92 and screwed into the threaded bores 88.
  • the conical heads 90 of the tension fastening screws 89 sit in the conical part of the through bores 92.
  • the inner circumferential surface of the conical area of the through bores 92 thus form fastening contact surfaces which run obliquely with respect to the radial direction r and also with respect to the tangential direction ⁇ .
  • the outer circumferential surfaces of the conical heads 90 of the tension fastening screws 89 are fastening counter abutment surfaces with an oblique course with respect to the radial direction r and the tangential direction ⁇ . These surfaces thus represent tensile fasteners and anti-tensile fasteners for applying the tangential tensile force F 1 to the circular comb base body 87.
  • FIG. 7 a section of a further circular comb unit 93 is shown, which contains a circular comb 94 with a segmented circular comb base body 95. Again, only the tensile fastening means for the tangentially tensioned fixing of the circular comb base body 95 to the shaft 5 comprising the region around the one tangential end of the circular comb 94 is shown.
  • An eccentric mechanism is provided on the tangential base body edge 78 of the circular comb base body 95 for fastening it under tensile force.
  • the eccentric mechanism is part of the fastening mechanism 3c.
  • a plurality of receiving lugs 97 arranged axially one behind the other are integrally formed on the base body edge 78 of the circular comb base body 95 or its base body end segment 96.
  • an eccentric end section 98 of a retaining clip 99 facing the base body edge 78 in the assembled state has a plurality of axially one behind the other, also integrally formed on the retaining clip 99 molded receiving counter eyelets 100.
  • the receiving eyelets 97 and the receiving counter-eyelets 100 are interlocked.
  • one of the receiving eyelets 97 of the base body end segment 96 alternates with one of the receiving counter eyelets 100 of the eccentric end section 98.
  • the receiving eyelets 97 each have an eyelet through-opening 101
  • the receiving counter-eyelets 100 each have a counter-eyelet through opening 102.
  • the eyelet through-openings 101 and the counter-eyelet through-openings 102 overlap at least partially.
  • an eccentric tensioning rod 103 is inserted through the eyelet through openings 101 and the counter eyelet through openings 102 in its non-tensioning transverse position.
  • the eccentric tensioning rod 103 is brought into its exciting longitudinal position by a corresponding rotational movement about its longitudinal axis, as a result of which the circular comb base body 95 and the holding clip 99 are moved toward or towards one another, and the degree of overlap of the eyelet through-openings 101 and the counter-eyelet through-openings 102 is enlarged.
  • the circular comb base body 95 is subjected to the tangential tensile force F 1 (which in this embodiment is also very high).
  • the circular comb base body 95, with the receiving eyelets 97, also has tension fastening means which are designed to apply a tangential tensile force F 1 to the circular comb base body 95 when mounted on the shaft 5.
  • corresponding corresponding anti-tension means are available which interact with these tension means.
  • the latter is in particular the eccentric end section 98 with the receiving counter eyelets 100 and the eccentric tensioning rod 103 which can be rotated and releasably inserted about its longitudinal axis.
  • the eccentric tensioning rod 103 is first rotated back into its non-exciting transverse position, as a result of which the tensile force load in the basic circular comb 95 disappears.
  • the eccentric tensioning rod 103 can then easily be pulled out of the eyelet through openings 101 and the counter eyelet through openings 102. After loosening and / or removing any other fastening means, the holding clip 99 and then also the circular comb 94 can be removed.
  • FIG. 8 A further exemplary embodiment of a circular comb unit 104 of a combing machine with a circular comb 105 fastened tangentially clamped to the shaft 5 is shown.
  • the circular comb unit 104 is constructed similarly to the circular comb unit 57 according to FIG Fig. 4 .
  • the main difference is a washer 106, which is loosely inserted between the inner circumferential side 8 of the segmented circular comb base body 59 and the mounting surface 27 of the holding body 67 in order to adjust the distance between pliers D.
  • the washer 106 which is designed in particular as a metal sheet with a selectable sheet thickness corresponding to the desired adjustment of the pliers spacing D, is part of the circular comb 105.
  • the washer 106 has a sheet thickness or a disk thickness of approximately 1 mm.
  • the metal sheet is flexible and bendable, so that it adapts to the cylindrical segment-shaped contour of the (multi-part) mounting surface 27.
  • the washer 106 extends at least over the entire combing area and thus over the tangential and axial area covered by all central base body segments 60 of the circular comb base body 59. At the in Fig. 8 In the exemplary embodiment shown, the washer 106 even extends over the tangential and axial region covered by the base body end segments 61, 62.
  • the washer 106 can be inserted easily and in particular without sacrificing the accuracy of the base body segments 60-62 on its base - here the washer 106 resting on the mounting surface 27. That with the insertion of the washer 106 accompanying enlargement of the outer diameter of the contact surface for the base body segments 60-62 is compensated for due to the tangential and in particular a radial play connection between adjacent of the base body segments 60-62.
  • the base body segments 60-62 nestle tightly against the washer 106 in the assembled state.
  • a plurality of washers 109 arranged tangentially one behind the other are 110 and 111 loosely inserted with different sheet thicknesses.
  • the washer 109 has a sheet thickness of, for example, approximately 1 mm, the washer 110 of, for example, approximately 0.6 mm and that of the washer 111 of, for example, approximately 0.3 mm.
  • the inserted washers 109-111 can completely, that is, the base body segments 60-62 in particular on both internal contact strips 33, 34 (see, for example, the base body end segment 62 and the adjoining first central base body segment 60 and the fourth central base body segment 60 as seen in the direction of rotation DR of the shaft 5 or the circular ridge 108), or only partially, that is to say in particular only on one of the two inner contact strips 33, 34 (see, for example, the second, third and fifth central body segment 60 viewed in the direction of rotation DR).
  • the base body segments 60-62 there may also be none of the washers 109-111 (see e.g. the base body end segment 61). Due to the segmentation of the circular comb base body 59, the individual base body segments 60-62 can adapt to their lower counterpart as flexibly or individually as possible to the respective washer constellation.
  • the washers 109-111 are again to be understood as components of the circular comb 108.
  • a plurality of washers can also be stacked one above the other in the radial direction.
  • FIG. 10 Shown is a base body segment 112 of a segmented circular comb base body 113 with an underlay element 114 attached to the inner circumferential side 8. Apart from the latter, this corresponds to the circular comb base body 113 essentially according to the circular comb base body 22 Fig. 2 .
  • the base body segment 112 As a fastening means for fastening the underlay element 114 to the base body segment 112, the base body segment 112 has inclined contact surfaces 115 and 116, the latter of which is formed by an inner wall of a fastening slot 117 made on the inner circumferential side 8 of the base body segment 112.
  • the base element 114 has upwardly protruding clip attachments 118, 119 which, in the assembled state, bear against the contact surfaces 115 and 116, so that the base element 112 is fastened in particular in a clip-like manner to the base body segment 112.
  • the attachment is in particular designed to be detachable. In principle, other configurations for the releasable fixing of an underlay element on the inner circumferential side 8 of a base body segment are also possible.

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

Claims (15)

  1. Peigne circulaire pour une peigneuse destinée à peigner des fibres textiles et à être fixé sur une tige (5) de la peigneuse pouvant tourner autour d'un axe de rotation (4), comprenant
    a) un corps de base de peigne circulaire (6 ; 22 ; 42 ; 59 ; 77 ; 87 ; 95 ; 113) présentant une face périphérique extérieure (7) et une face périphérique intérieure (8),
    b) plusieurs barres de peigne (9) disposées sur la face périphérique extérieure (7) du corps de base (6 ; 22 ; 42 ; 59 ; 77 ; 87 ; 95 ; 113) du peigne circulaire, lesquelles barres de peigne recouvrent, dans leur totalité, un segment angulaire périphérique de peigne et définissent une leur zone d'engrènement du peigne circulaire (2 ; 21 ; 41 ; 58 ; 76 ; 86 ; 94 ; 105 ; 108),
    c) le corps de base circulaire du peigne (6 ; 22 ; 42 ; 59 ; 77 ; 87 ; 95 ; 113) étant réalisé en plusieurs parties et comprenant une pluralité de segments de corps de base (15-17 ; 23 ; 43-45 ; 60-62 ; 79 ; 91 ; 96 ; 112) reliés directement les uns aux autres de manière tangentielle ; un des segments de corps de base (15-17 ; 23 ; 43-45 ; 60-62 ; 79 ; 91 ; 96 ; 112) étant associé à chaque barre de peigne (9), et chaque barre de peigne (9) étant monté sur le segment de corps de base (15-17 ; 23 ; 43-45 ; 60-62 ; 79 ; 91 ; 96 ; 112) qui lui est associé, et
    d) le corps de base de peigne circulaire (6 ; 42 ; 59 ; 77 ; 87 ; 95) étant équipé de moyens de fixation par traction (16a, 17a, 65, 66 ; 46, 47, 65, 66 ; 63-66 ; 81 ; 92 ; 97) pour le fixer à la tige (5), et lesdits moyens de fixation par traction (16a, 17a, 65, 66 ; 46, 47, 65, 66 ; 63-66 ; 81 ; 92 ; 97) étant adaptés pour appliquer une force de tension tangentielle (Fi) au corps de base du peigne circulaire (6 ; 42 ; 59 ; 77 ; 87 ; 95) lorsqu'il est fixé à la tige (5).
  2. Peigne circulaire selon la revendication 1, caractérisé en ce que les segments de corps de base (15-17 ; 23 ; 43-45 ; 60-62 ; 79 ; 91 ; 96 ; 112) sont reliés entre eux de manière amovible.
  3. Peigne circulaire selon la revendication 1 ou 2, caractérisé en ce que les segments de corps de base (15-17 ; 23 ; 43-45 ; 60-62 ; 79 ; 91 ; 96 ; 112) sont reliés entre eux par complémentarité de forme dans la direction tangentielle.
  4. Peigne circulaire selon l'une quelconque des revendications précédentes, caractérisé en ce qu'au moins une partie des segments de corps de base (15 ; 23 ; 60 ; 112) permettant la liaison tangentielle est pourvue d'un prolongement de liaison (18 ; 24) à une première extrémité tangentielle et d'une ouverture de liaison (19 ; 25) à une deuxième extrémité tangentielle, le prolongement de liaison (18 ; 24) et l'ouverture de liaison (19 ; 25) correspondant l'un à l'autre, et le prolongement de liaison (18 ; 24) présentant une contre-dépouille (20 ; 26) pour la transmission tangentielle des forces.
  5. Peigne circulaire selon l'une des revendications précédentes, caractérisé en ce que la liaison tangentielle entre deux segments de corps de base voisins (15-17 ; 23 ; 43-45 ; 60-62 ; 79 ; 91 ; 96 ; 112) à l'état non monté permet un mouvement relatif des segments de corps de base voisins (15-17 ; 23 ; 43-45 ; 60-62 ; 79 ; 91 ; 96 ; 112), l'un par rapport à l'autre dans la direction radiale, allant jusqu'à 0,3 mm, en particulier jusqu'à 0,1 mm.
  6. Peigne circulaire selon l'une des revendications précédentes, caractérisé en ce que tous les segments de corps de base (60), sur lesquels est montée une barre de peigne (9), sont de construction identique.
  7. Peigne circulaire selon l'une des revendications précédentes, caractérisé en ce que le corps de base de peigne circulaire (59) présente, à chacune de ses deux extrémités tangentielles, un segment d'extrémité de corps de base (61, 62) exempt de barre de peigne, lequel est pourvu de moyens de fixation par traction (63-66) permettant la fixation du corps de base de peigne circulaire (59) sur la tige (5).
  8. Peigne circulaire selon l'une des revendications 1 à 5, caractérisé en ce que le corps de base de peigne circulaire (6 ; 42 ; 77 ; 87 ; 95) présente, à chacune de ses deux extrémités tangentielles, un segment d'extrémité de corps de base (16, 17 ; 44, 45 ; 79 ; 91 ; 96) sur lequel est montée une barre de peigne (9) et qui est pourvu des moyens de fixation par traction (16a, 17a, 65, 66 ; 46, 47, 65, 66 ; 81 ; 92 ; 97) pour la fixation du corps de base de peigne circulaire (6 ; 42 ; 77 ; 87 ; 95) sur la tige (5).
  9. Peigne circulaire selon l'une des revendications précédentes, caractérisé en ce qu'au moins une partie des segments de corps de base (60-62 ; 112) sont pourvus de moyens d'espacement (106 ; 109-111 ; 114) pour la fixation à distance variable à la tige (5), dans la direction radiale.
  10. Peigne circulaire selon la revendication 9, caractérisé en ce que les moyens d'espacement sont réalisés sous la forme d'au moins une rondelle (106 ; 109-111) montée de manière fixe ou s'appuyant de manière lâche sur la face périphérique intérieure (8).
  11. Peigne circulaire selon la revendication 10, caractérisé en ce qu'une pluralité de rondelles (109-111) disposées tangentiellement et/ou radialement les unes derrière les autres s'appuient sur la face périphérique intérieure (8).
  12. Peigne circulaire selon la revendication 11, caractérisé en ce que les rondelles (109-111) ont au moins partiellement une épaisseur de rondelle différente.
  13. Peigne circulaire selon l'une des revendications précédentes, caractérisé en ce qu'au moins une partie des segments (112) du corps de base sur la face périphérique intérieure (8) du corps de base de peigne circulaire (113) sont pourvus de moyens de fixation (115, 116, 117) permettant la fixation d'un élément de rondelle (114).
  14. Peigne circulaire selon l'une des revendications précédentes, caractérisé en ce que les segments de corps de base (15-17 ; 23 ; 43-45 ; 60-62 ; 79 ; 91 ; 96 ; 112) sont réalisés en aluminium, avec une résistance à la traction allant en particulier jusqu'à 310 N/mm2.
  15. Peigne circulaire selon l'une des revendications précédentes, caractérisé en ce que les moyens de fixation par traction sont réalisés au moins partiellement sous la forme d'au moins une saillie de fixation par traction (65, 66) faisant saillie vers l'extérieur sur la face périphérique extérieure (7) ou vers l'intérieur sur la face périphérique intérieure (8) du corps de base de peigne circulaire (6 ; 42 ; 59), dans lequel il existe en particulier deux saillies de fixation par traction (65, 66), dont chacune est de préférence disposée à l'une des deux extrémités tangentielles du corps de base de peigne circulaire (6 ; 42 ; 59).
EP16787454.4A 2015-11-02 2016-10-26 Peigne circulaire comprenant des sections de peigne et un corps de base Active EP3307932B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015221410.9A DE102015221410A1 (de) 2015-11-02 2015-11-02 Kreiskamm mit Kämmriegeln und Grundkörper
PCT/EP2016/075859 WO2017076722A1 (fr) 2015-11-02 2016-10-26 Peigne circulaire avec verrou de peigne et corps de base

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EP3307932A1 EP3307932A1 (fr) 2018-04-18
EP3307932B1 true EP3307932B1 (fr) 2020-04-01

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JP (1) JP6847967B2 (fr)
CN (1) CN108350611B (fr)
DE (1) DE102015221410A1 (fr)
WO (1) WO2017076722A1 (fr)

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Publication number Priority date Publication date Assignee Title
CN113529215A (zh) * 2021-08-12 2021-10-22 何瑞林 高性能自清洁粘结式整体锡林
EP4428398A1 (fr) * 2023-03-09 2024-09-11 BRECO Antriebstechnik Breher GmbH & Co. KG Poulie à courroie dentée

Family Cites Families (10)

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Publication number Priority date Publication date Assignee Title
BE527113A (fr) * 1954-03-09 1954-03-31
US2605512A (en) * 1950-12-27 1952-08-05 Terrell Mach Co Comber half-lap
DD100983A1 (fr) * 1972-03-10 1973-10-12
FR2260637B1 (fr) * 1974-02-07 1977-03-04 Schlumberger Cie N
CH683190A5 (de) 1991-05-10 1994-01-31 Rieter Ag Maschf Rundkamm für eine Kämmaschine.
DE29720656U1 (de) 1997-11-21 1998-01-22 Staedtler & Uhl, 91126 Schwabach Distanzelement für einen Kreiskamm einer textilen Kämm-Maschine
DE10232587A1 (de) * 2002-07-18 2004-01-29 Staedtler + Uhl Kg Kämm-Maschine mit einem Kreiskamm
EP1533404B1 (fr) * 2003-11-14 2008-03-26 Maschinenfabrik Rieter Ag Peigne circulaire avec des éléments de garniture
DE102010043064B4 (de) * 2010-10-28 2012-10-04 Staedtler + Uhl Kg Kämmelement
CH707882A2 (de) 2013-04-12 2014-10-15 Rieter Ag Maschf Rundkamm für eine Kämmmaschine.

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Publication number Publication date
CN108350611A (zh) 2018-07-31
JP6847967B2 (ja) 2021-03-24
EP3307932A1 (fr) 2018-04-18
JP2018536778A (ja) 2018-12-13
WO2017076722A1 (fr) 2017-05-11
CN108350611B (zh) 2021-03-30
DE102015221410A1 (de) 2017-05-04

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