EP3141638A1 - Fastening device for comb elements on a circular comb - Google Patents

Fastening device for comb elements on a circular comb Download PDF

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Publication number
EP3141638A1
EP3141638A1 EP16186208.1A EP16186208A EP3141638A1 EP 3141638 A1 EP3141638 A1 EP 3141638A1 EP 16186208 A EP16186208 A EP 16186208A EP 3141638 A1 EP3141638 A1 EP 3141638A1
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EP
European Patent Office
Prior art keywords
combing
end portion
base body
threaded bolt
circular comb
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.)
Granted
Application number
EP16186208.1A
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German (de)
French (fr)
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EP3141638B1 (en
Inventor
Arnold VETTERLI
Markus SCHILTER
Urs Müller
Urs Schiltknecht
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Graf und Cie AG
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Graf und Cie AG
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Publication of EP3141638A1 publication Critical patent/EP3141638A1/en
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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G19/00—Combing machines
    • D01G19/06—Details
    • D01G19/10—Construction, mounting, or operating features of combing elements
    • 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
    • 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
    • D01G15/84—Card clothing; Manufacture thereof not otherwise provided for
    • D01G15/88—Card clothing; Manufacture thereof not otherwise provided for formed from metal sheets or strips
    • 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
    • D01G15/84—Card clothing; Manufacture thereof not otherwise provided for
    • D01G15/92—Attaching card clothing to carding elements
    • 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

Definitions

  • the invention relates to a circular comb of a combing machine with a parallel to its axis of rotation arranged base body, on the outer circumference (peripheral surface) rests at least one combing element and at least one, connected to the combing holding element, which has at least one threaded bore, in each of which a first , threaded end portion of a threaded bolt projects, which has a central portion which projects through a radially oriented opening of the base body and the threaded bolt is provided with a second end portion with which it rests on an inner support surface of the base body in the region of the respective opening wherein the cross-sectional area of the second end portion at least partially projects beyond the cross-sectional area of the respective opening.
  • the combing elements for a circular comb consist of several, provided with a tooth set tooth segments, which are held together by longitudinal bolts.
  • the longitudinal bolts protrude into holes which are provided in the toothed segments.
  • Several combing elements arranged one behind the other also called latches) form a combing segment with a closed combing surface.
  • the toothed segments of the respective combing element are provided with a dovetail-shaped recess, via which they are connected via a holding body with a base body of the circular comb.
  • the holding body is provided with a corresponding dovetail-shaped counter profile, via which it engages in the recess of the toothed segments and is held via a screw in a correspondingly formed recess of the base body.
  • a similar design is from the published CH 706 344 A2 known, with toothed racks are mounted on a support rod, which are connected via dovetail-shaped fastening means with a base body.
  • a screw connection is provided, via which the fastening means is connected to the base body.
  • maximum torques are given, via which the holding body, or the support rods connected to the main body to fix the combing elements, or to be clamped. With this specification of a maximum torque is to prevent that the combing elements warp when they are braced during the fastening operation against the outer peripheral surface of the body.
  • the invention thus has the task of proposing a device, whereby the described disadvantages of known designs are avoided and a coating of the threaded bolt is excluded when mounting the combing elements on the body of the circular comb.
  • This object is achieved by proposing that the first end portion of the respective threaded bolt has a smaller diameter than the diameter of the central portion and between the inner support surface of the base body and the second end portion of the threaded bolt, a spring element is provided.
  • the proposed difference in diameter between the central portion and the first end portion of the respective threaded bolt ensures that the first end portion of the threaded bolt, which is provided with a thread, can only be screwed into a threaded bore of the retaining element, until the threaded bolt with the existing paragraph between the first end portion and the middle portion rests on the holding element.
  • the attachment, or the contact force of the respective Kämmettis on the body is no longer on the height of the tightening torque of the respective threaded bolt but on the spring force of the spring element.
  • the dimension of the respective threaded bolt is designed such that in the mounted position of the respective combing element, the spring element is tensioned and, the first end portion opposite end of the central portion of the threaded bolt rests on the support member in the region of the threaded bore.
  • a plurality of combing elements are mounted one behind the other on the base body, the tooth density increasing counter to the direction of rotation of the circular comb.
  • at least two threaded bolts are provided to secure the combing element on the base body.
  • the respective holding element is releasably connected to the combing element. This makes it possible, when replacing a combing element, to use the holding elements previously used in the newly inserted combing element again.
  • the base body has radially outwardly directed recesses into which the respective retaining element protrudes.
  • the base body is provided with mutually spaced support ribs on which the end portions of the respective combing elements rest, wherein the support ribs extend parallel to the axis of rotation of the circular comb.
  • the spring elements are designed as coil springs or as wave springs.
  • the spring element can be designed in a smaller, compact design, wherein the spring force generated is sufficient to keep the combing element on the outer circumference of the body safely.
  • a comber which has at least one inventively designed circular comb.
  • Fig.1 shows a circular ridge 1 with a circular comb shaft 2 on which two rotatably mounted, spaced apart flanges 4 are mounted. This is in particular also from the partial view X to Fig.1 in the Fig.2 refer to.
  • a base body 5 On a partial circumference of the flanges 4, a base body 5 is fixed, which carries on its peripheral surface U a plurality of combing elements K1 to K4 arranged one behind the other.
  • the combing elements K1-K4 have a holding bar H1-H4, on each of which garnish elements G1-G4 are fastened.
  • the clothing elements G1-G4 can be fastened, for example via a laser weld seam on the respective support rod H1-H4, as shown in the published EP-2650414 A1 is shown and described. However, other types of attachment are possible.
  • FIG.1 An inventive embodiment of the attachment of the front Kämmiatas K1 is in Fig.1 and in an enlarged partial view in Figure 3 shown.
  • the further combing elements K2 to K4 can, as in Fig.1 is indicated by dashed lines, be connected in the same way with the main body 5.
  • the main body 5 is provided in the contact area of the Kämm implant K1-K1 each with a first recess V1, which extends longitudinally to the axis of rotation D of the circular comb shaft 2.
  • This depression V1 is formed by two supporting ribs S1, S2 arranged at a distance b from each other, which extend in a longitudinal direction L of the combing elements K1-K4, or parallel to the axis of rotation D, as well as from the plan view X (FIG Fig.1 ) of the Fig.2 can be seen.
  • the support rod H1 In the mounted position, the support rod H1 is supported with its base F1 on these support ribs.
  • a mutually arranged circular recesses V2 are provided, into which holding elements 10 at least partially protrude.
  • In the respective recess V2 opens a circular passage opening 12 with a diameter d2.
  • the middle section 14 has a diameter d which is greater than the diameter d1 of the first end section E1 of the threaded bolt. This results in a shoulder 15 between the middle portion 14 and the first end portion E1 of the threaded bolt 6.
  • the diameter d1 superior face 16 of the central region 14 of the central region of the threaded bolt comes to rest on a lower surface 17 of the holding element 10th when the first end portion E1 of the threaded bolt 6 is completely screwed into a threaded bore 18 of the respective holding element (see Figure 3 ).
  • the holding element 10, of which several are arranged at a distance a from one another in the longitudinal direction L of the combing element K1, is in the example shown Figure 3 stepped and has a first cylindrical portion 20 which is provided with a thread 21.
  • the second portion 23 of the retaining element 10 extends over the diameter of the first portion 20 and has a lower surface 17 on which the end face 16 of the central region of the threaded bolt 6 comes into abutment in the illustrated assembled position.
  • the portion 20 of the holding element 10 is screwed into a threaded bore 22 of the retaining rod H1 and fastened.
  • the first portion 20 superior upper surface 24 of the second portion 23 of the holding element 10 for engagement with the base F1 of the retaining rod H1 and is fixed in this position.
  • the threaded bolt 6 has a second end portion E 2, which is opposite to the end portions E 1 and adjoins the center portion 14.
  • the end portion E2 has at least partially an outer dimension, or a diameter d3, which is greater than the diameter d2 of the through hole 12 through which the center portion 14 of the threaded bolt protrudes.
  • a compression spring in the form of a helical spring 30 is mounted on the central portion 14 of the threaded bolt 6.
  • a wave spring 31 may be used, which in the example of Figure 4 will be shown.
  • the outer diameter of the respective spring element 30, or 31 is selected so that the spring element projects beyond the through hole 12 and comes to rest on the inner support surface 26 of the base body.
  • the respective holding element 40 has a first section 41 (for example, cylindrical), which projects into the depressions V1 and V2 of the main body 5. This is followed by another section 42 (cylindrical or square), which projects into a longitudinal slot 45 which extends in the longitudinal direction L of the retaining rod H1.
  • the adjoining the section 42 end portion 43 of the holding member 40 may for example have a square or rectangular cross-sectional shape, as z. B. in the representation of Fig.2 indicated on the right side.
  • the end portion 43 which projects beyond the portion 42, is inserted into a longitudinal slot 47 of the retaining rod H1 and positioned corresponding to the passage opening in the base body.
  • the holding member 40 is like the holding member 10 is provided with a threaded bore 18 into which the end gate E1 of the threaded bolt 6 is screwed.
  • a spring element is in the embodiment of Figure 4 a wave spring 31 is inserted.
  • the remaining components correspond to the embodiment of Figure 3 and will therefore not be described further here.
  • a plurality of threaded bolts 8 are used for fastening the combing element.
  • the other combing elements K2-K4 are mounted in the form described on the base body 5, wherein the respective support rods H2-H4 also rest on support ribs S1, S2, which are mounted on the peripheral surface U of the base body, which in dashed lines from the Fig.1 can be seen.
  • the intended number of retaining elements 10 are screwed into the respective threaded bore 22 of the retaining rod 10 via the section 20 provided with a thread 21 until the upper surface 24 of the section 23 comes to bear against the base area F1 of the retaining rod H1.
  • the preassembled Kämmelement K1 is positioned on the base body 5 so that the respective portions 23 of the support rod 10 protrude into the recesses V1 and V2 and the threaded holes 18 facing the through holes 12 of the main body 5.
  • threaded bolts 6 are successively made from the underside of the main body 5 through the passage openings 12 and screwed into the threaded bore 18 of the holding element 10 with their first end sections E1 having threads, until the end face 16 of the center section 14 is in contact with the bottom surface 17 of the holding element 10 rests.
  • a spring element 30 (31) attached to the center portion 14 and brought to rest on the support surface 28 of the second end portion E2.
  • This end portion E2 may be formed as a screw head or, as indicated schematically, be provided with a hexagon socket P over which the threaded bolt can be rotated.
  • the spring element 30 When screwing the first end portion E1 in the holding member 10, the spring element 30 is compressed and tensioned. Since the spring element 30 (31) is supported on the inner support surface 26, a force M is generated by the, resulting in tensioning of the spring element spring force, over which the second end portion E2 of the threaded bolt 6 is pushed away from the inner support surface of the main body 5 , This is also the case, via the retaining element 10 with the threaded bolt connected combing element with its base F1 pressed against the peripheral surface U of the base body 5 in the region of the support ribs S1, S2, or braced. A coating of the respective threaded bolt is thus excluded, since this comes with its paragraph 15 to an end stop on the surface 17 of the holding element.
  • the combing element is clamped exclusively on the resulting spring force of the spring element 30 (31) against the outer circumference U of the body and fixed in this position.
  • the tightening torque of the threaded bolt has no influence on the contact pressure, with which the respective combing element is clamped against the peripheral surface U of the main body 5, or pressed.
  • the retaining element 40 shown there is not screwed into the support rod H1, but laterally inserted over its end portion 43 in a longitudinal slot 47 of the retaining rod, as partially on the right side of the representation of Fig.2 is pictured.
  • the inserted holding elements are positioned so that their threaded hole 18 of the respective passage opening 12 of the main body facing. It is also conceivable to provide markings in the region of the base area F1 of the retaining rod H1, by means of which the retaining elements 40 can already be brought into the correct position during insertion into the longitudinal slot 47.
  • the respective holding element 40 could also be connected via a weld with the support rod H1. It is also conceivable to connect the holding element to the holding bar via an adhesive connection. Another possibility would be a one-piece molding of a holding element to the support rod. In these cases, the respective holding element is fixed and permanently connected to the holding element.
  • the proposed fastening of the combing elements on a base support of a circular comb allows for easy and quick assembly and disassembly of the combing elements, wherein the tightening torque of the threaded bolt used exerts no influence on the contact pressure of the respective combing element on the outer circumference U of the body.

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

Abstract

Die Erfindung bezieht sich auf einen Rundkamm (1) einer Kämmmaschine mit einem, parallel zu seiner Drehachse (D) angeordneten Grundkörper (5), auf dessen Aussenumfang (U) mindestens ein Kämmelement (K1-K4) aufliegt und wenigstens einem, mit dem Kämmelement verbundenen Halteelement (10, 40), welches wenigstens eine Gewindebohrung (18) aufweist, in welche jeweils ein erster, mit einem Gewinde versehener Endabschnitt (E1) eines Gewindebolzens (6) hineinragt, welcher einen Mittenabschnitt (14) aufweist, der durch eine radial ausgerichtete Öffnung (12) des Grundkörpers (5) hindurchragt und der Gewindebolzen (6) mit einem zweiten Endabschnitt (E2) versehen ist, mit welchem er sich auf einer inneren Stützfläche (26) des Grundkörpers (5) im Bereich der jeweiligen Öffnung (12) abstützt, wobei die Querschnittsfläche des zweiten Endabschnittes (E2) die Querschnittsfläche der jeweiligen Öffnung (12) zumindest teilweise überragt. Um ein Verspannen der Kämmgarnituren bei der Montage zu vermeiden wird vorgeschlagen, dass der erste Endabschnitt (E1) des jeweiligen Gewindebolzens (6) einen kleineren Durchmesser (d1) aufweist als der Durchmesser (d) des Mittenabschnittes (14) und zwischen der inneren Stützfläche (26) des Grundkörpers (5) und dem zweiten Endabschnitt (E2) des Gewindebolzens (6) ein Federelement (30, 31) vorgesehen ist.The invention relates to a round comb (1) of a combing machine with a basic body (5) arranged parallel to its axis of rotation (D), on the outer circumference (U) of which at least one combing element (K1-K4) rests and at least one, with the combing element connected holding element (10, 40), which has at least one threaded bore (18) into which in each case a first, threaded end portion (E1) of a threaded bolt (6) protrudes, which has a central portion (14) through a radial aligned opening (12) of the base body (5) protrudes and the threaded bolt (6) having a second end portion (E2), with which it on an inner support surface (26) of the base body (5) in the region of the respective opening (12 ), wherein the cross-sectional area of the second end portion (E2) at least partially projects beyond the cross-sectional area of the respective opening (12). In order to avoid distortion of the Kämmgarnur in assembly is proposed that the first end portion (E1) of the respective threaded bolt (6) has a smaller diameter (d1) than the diameter (d) of the central portion (14) and between the inner support surface ( 26) of the base body (5) and the second end portion (E2) of the threaded bolt (6), a spring element (30, 31) is provided.

Description

Die Erfindung bezieht sich auf einen Rundkamm einer Kämmmaschine mit einem, parallel zu seiner Drehachse angeordneten Grundkörper, auf dessen Aussenumfang (Umfangsfläche) mindestens ein Kämmelement aufliegt und wenigstens einem, mit dem Kämmelement verbundenen Halteelement, welches wenigstens eine Gewindebohrung aufweist, in welche jeweils ein erster, mit einem Gewinde versehener Endabschnitt eines Gewindebolzens hineinragt, welcher einen Mittenabschnitt aufweist, der durch eine radial ausgerichtete Öffnung des Grundkörpers hindurchragt und der Gewindebolzen mit einem zweiten Endabschnitt versehen ist, mit welchem er sich auf einer inneren Stützfläche des Grundkörpers im Bereich der jeweiligen Öffnung abstützt, wobei die Querschnittsfläche des zweiten Endabschnittes die Querschnittsfläche der jeweiligen Öffnung zumindest teilweise überragt.The invention relates to a circular comb of a combing machine with a parallel to its axis of rotation arranged base body, on the outer circumference (peripheral surface) rests at least one combing element and at least one, connected to the combing holding element, which has at least one threaded bore, in each of which a first , threaded end portion of a threaded bolt projects, which has a central portion which projects through a radially oriented opening of the base body and the threaded bolt is provided with a second end portion with which it rests on an inner support surface of the base body in the region of the respective opening wherein the cross-sectional area of the second end portion at least partially projects beyond the cross-sectional area of the respective opening.

Aus der DE-33 36 876 A1 ist eine Ausführung bekannt, wobei die Kämmelemente für einen Rundkamm aus mehreren, mit einer Zahngarnitur versehenen Zahnsegmenten bestehen, welche durch Längsbolzen zusammengehalten werden. Die Längsbolzen ragen dabei in Bohrungen, welche in den Zahnsegmenten vorgesehen sind. Mehrere hintereinander angeordnete Kämmelemente (auch Riegel genannt) bilden dabei ein Kämmsegment mit einer geschlossenen Kämmfläche. Dabei sind die Zahnsegmente des jeweiligen Kämmelementes mit einer schwalbenschwanzförmigen Aussparung versehen, über welche sie über einen Haltekörper mit einem Grundkörper des Rundkammes verbunden werden. Der Haltekörper ist dabei mit einem entsprechenden schwalbenschwanzförmigen Gegenprofil versehen, über welches er in die Aussparung der Zahnsegmente eingreift und über eine Schraubverbindung in einer entsprechend ausgebildeten Aussparung des Grundkörpers gehalten wird.From the DE-33 36 876 A1 an embodiment is known, wherein the combing elements for a circular comb consist of several, provided with a tooth set tooth segments, which are held together by longitudinal bolts. The longitudinal bolts protrude into holes which are provided in the toothed segments. Several combing elements arranged one behind the other (also called latches) form a combing segment with a closed combing surface. The toothed segments of the respective combing element are provided with a dovetail-shaped recess, via which they are connected via a holding body with a base body of the circular comb. The holding body is provided with a corresponding dovetail-shaped counter profile, via which it engages in the recess of the toothed segments and is held via a screw in a correspondingly formed recess of the base body.

Eine ähnliche Ausführung ist aus der veröffentlichten CH 706 344 A2 bekannt, wobei Zahngarnituren auf einem Haltestab befestigt sind, welcher über schwalbenschwanzförmige Befestigungsmittel mit einem Grundkörper verbunden werden. Auch hierbei ist eine Schraubverbindung vorgesehen, über welche das Befestigungsmittel mit dem Grundkörper verbunden wird. In der Praxis werden zum Anziehen der Schrauben maximale Drehmomente vorgegeben, über welche die Haltekörper, bzw. die Haltestäbe zur Befestigung der Kämmelemente mit dem Grundkörper verbunden, bzw. verspannt werden. Mit dieser Vorgabe eines maximalen Drehmomentes soll verhindert werden, dass sich die Kämmelemente verziehen, wenn sie beim Befestigungsvorgang gegen die äussere Umfangsfläche des Grundkörpers verspannt werden. Bei Verwendung eines Drehmomentschlüssel können diese Vorgaben auch erfüllt werden, so dass keine Verzüge bei den Kämmelementen entstehen, welche zu masslichen Abweichung führen und den Abstand der Zahnspitzen der Kämmgarnituren zur unteren Zangenplatte eines Zangenaggregates beeinflussen können. Es hat sich jedoch in der Praxis gezeigt, dass in vielen Fällen ein Drehmomentschlüssel nicht zum Einsatz kommt und diese Schrauben mit einem einfachen Schlüssel angezogen werden, wodurch die zuvor beschriebene Gefahr besteht, dass die Schrauben mit einem höheren Drehmoment angezogen werden, als dies vorgeschrieben ist. Dabei kann es zu den beschriebenen Verformungen der Kämmgarnituren kommen, was sich negativ auf einen einzuhaltenden Abstand zwischen der unteren Zangenplatte und den Zahnspitzen auswirken kann. Im schlimmsten Fall kann es zu Kollisionen zwischen den Zahnspitzen der Garnituren und der unteren Zangenplatte führen.A similar design is from the published CH 706 344 A2 known, with toothed racks are mounted on a support rod, which are connected via dovetail-shaped fastening means with a base body. Here, too, a screw connection is provided, via which the fastening means is connected to the base body. In practice, to tighten the screws maximum torques are given, via which the holding body, or the support rods connected to the main body to fix the combing elements, or to be clamped. With this specification of a maximum torque is to prevent that the combing elements warp when they are braced during the fastening operation against the outer peripheral surface of the body. When using a torque wrench, these requirements can also be met, so that no distortion in the combing arise, which can lead to massive deviation and can affect the distance of the tooth tips of the Kämmgarnur to the lower tong plate of a nipper unit. However, it has been shown in practice that in many cases a torque wrench is not used and these screws are tightened with a simple wrench, whereby the previously described danger exists that the screws are tightened with a higher torque than is prescribed , This can lead to the described deformations of the Kämmgarnur, which can adversely affect a distance to be maintained between the lower tong plate and the tooth tips. In the worst case, it can lead to collisions between the tooth tips of the trimmings and the lower tong plate.

Der Erfindung stellt sich somit die Aufgabe, eine Vorrichtung vorzuschlagen, womit die beschriebenen Nachteile bekannter Ausführungen vermieden werden und ein Überziehen der Gewindebolzen beim Befestigen der Kämmelemente auf dem Grundkörper des Rundkammes ausgeschlossen wird.The invention thus has the task of proposing a device, whereby the described disadvantages of known designs are avoided and a coating of the threaded bolt is excluded when mounting the combing elements on the body of the circular comb.

Diese Aufgabe wird dadurch gelöst, indem vorgeschlagen wird, dass der erste Endabschnitt des jeweiligen Gewindebolzens einen kleineren Durchmesser aufweist als der Durchmesser des Mittenabschnittes und zwischen der inneren Stützfläche des Grundkörpers und dem zweiten Endabschnitt des Gewindebolzens ein Federelement vorgesehen ist.This object is achieved by proposing that the first end portion of the respective threaded bolt has a smaller diameter than the diameter of the central portion and between the inner support surface of the base body and the second end portion of the threaded bolt, a spring element is provided.

Durch den vorgeschlagenen Durchmesserunterschied zwischen dem Mittenabschnitt und dem ersten Endabschnitt des jeweiligen Gewindebolzens wird gewährleistet, dass der erste Endabschnitt des Gewindebolzens, der mit einem Gewinde versehen ist, nur soweit in eine Gewindebohrung des Halteelementes eingeschraubt werden kann, bis der Gewindebolzen mit dem vorhandenen Absatz zwischen dem ersten Endabschnitt und dem Mittenabschnitt auf dem Halteelement aufliegt. Gleichzeitig wird beim Einschrauben des Gewindebolzens in das Halteteil die Feder zwischen einer inneren Stützfläche des Grundkörpers und des zweiten Endabschnittes des Gewindebolzens gespannt, wodurch das Kämmelement mittels des Halteelementes über die Federkraft der Feder gegen den Aussenumfang (bzw. dessen Umfangsfläche) des Grundkörpers verspannt wird. D. h., die Befestigung, bzw. die Anpresskraft des jeweiligen Kämmelementes auf dem Grundkörper erfolgt nicht mehr über die Höhe des Anzugsmomentes der jeweiligen Gewindebolzen sondern über die Federkraft des Federelementes.The proposed difference in diameter between the central portion and the first end portion of the respective threaded bolt ensures that the first end portion of the threaded bolt, which is provided with a thread, can only be screwed into a threaded bore of the retaining element, until the threaded bolt with the existing paragraph between the first end portion and the middle portion rests on the holding element. At the same time when screwing the threaded bolt in the holding part, the spring between an inner support surface the main body and the second end portion of the threaded bolt tensioned, whereby the combing element is clamped by means of the holding element on the spring force of the spring against the outer circumference (or its peripheral surface) of the body. D. h., The attachment, or the contact force of the respective Kämmelementes on the body is no longer on the height of the tightening torque of the respective threaded bolt but on the spring force of the spring element.

Vorzugsweise ist die Abmessung des jeweiligen Gewindebolzens derart ausgelegt, sodass in montierter Stellung des jeweiligen Kämmelementes das Federelement gespannt ist und das, dem ersten Endabschnitt gegenüberliegende Ende des Mittenabschnittes des Gewindebolzens auf dem Halteelement im Bereich der Gewindebohrung aufliegt.Preferably, the dimension of the respective threaded bolt is designed such that in the mounted position of the respective combing element, the spring element is tensioned and, the first end portion opposite end of the central portion of the threaded bolt rests on the support member in the region of the threaded bore.

In der Regel sind - in Umfangsrichtung des Rundkammes gesehen - mehrere Kämmelemente hintereinander auf dem Grundkörper angebracht, wobei die Zahndichte entgegen der Drehrichtung des Rundkammes zunimmt. In Richtung der Drehachse des Rundkammes gesehen, d. h. über die Länge des jeweiligen Kämmelementes, sind wenigstens zwei Gewindebolzen vorgesehen, um das Kämmelement auf dem Grundkörper zu befestigen.As a rule, as seen in the circumferential direction of the circular comb, a plurality of combing elements are mounted one behind the other on the base body, the tooth density increasing counter to the direction of rotation of the circular comb. Seen in the direction of the axis of rotation of the circular ridge, d. H. over the length of the respective combing element, at least two threaded bolts are provided to secure the combing element on the base body.

Vorzugsweise wird vorgeschlagen, dass das jeweilige Halteelement lösbar mit dem Kämmelement verbunden ist. Damit ist es möglich, bei einem Austausch eines Kämmelementes die bisher verwendeten Halteelemente beim neu eingesetzten Kämmelement wieder zu verwenden.It is preferably proposed that the respective holding element is releasably connected to the combing element. This makes it possible, when replacing a combing element, to use the holding elements previously used in the newly inserted combing element again.

Es ist auch denkbar ein Halteelement einzusetzen, welches sich über die gesamte Länge des jeweiligen Kämmelementes erstreckt und über zusätzliche Befestigungsmittel mit dem Kämmelement verbunden ist.It is also conceivable to use a holding element, which extends over the entire length of the respective combing element and is connected via additional fastening means with the combing element.

Um das Kämmsegment bei der Montage in Bezug auf den Grundkörper positionieren zu können und in der montierten Stellung zu fixieren wird weiter vorgeschlagen, dass der Grundkörper radial nach aussen gerichtete Aussparungen aufweist, in welche das jeweilige Halteelement hineinragt.In order to be able to position the combing segment during assembly in relation to the base body and to fix it in the mounted position, it is further proposed that the base body has radially outwardly directed recesses into which the respective retaining element protrudes.

Weiterhin wird vorgeschlagen, dass, in Umfangsrichtung des Rundkammes gesehen, der Grundkörper mit im Abstand zueinander angeordneten Stützrippen versehen ist, auf welchen die Endbereiche der jeweiligen Kämmelemente aufliegen, wobei die Stützrippen parallel zur Drehachse des Rundkammes verlaufen. Damit wird eine sichere Auflage des jeweiligen Kämmelementes auf dem Aussenumfang des Grundkörpers im Bereich der Stützrippen gewährleistet.Furthermore, it is proposed that, viewed in the circumferential direction of the circular comb, the base body is provided with mutually spaced support ribs on which the end portions of the respective combing elements rest, wherein the support ribs extend parallel to the axis of rotation of the circular comb. This will be a secure edition of the respective combing element on the outer circumference of the base body in the region of the support ribs ensured.

Vorzugsweise sind die Federelemente als Schraubenfedern oder als Wellenfedern ausgebildet. Damit kann das Federelement in kleiner kompakter Bauweise ausgeführt werden, wobei die erzeugte Federkraft ausreicht, um das Kämmelement auf dem Aussenumfang des Grundkörpers sicher zu halten.Preferably, the spring elements are designed as coil springs or as wave springs. Thus, the spring element can be designed in a smaller, compact design, wherein the spring force generated is sufficient to keep the combing element on the outer circumference of the body safely.

Des Weiteren wird eine Kämmmaschine beansprucht, welche wenigstens einen erfindungsgemäss ausgebildeten Rundkamm aufweist.Furthermore, a comber is claimed, which has at least one inventively designed circular comb.

Weitere Vorteile der Erfindung werden anhand nachfolgender Ausführungsbeispiele näher aufgezeigt und beschrieben.Further advantages of the invention will be shown and described in more detail with reference to subsequent embodiments.

Es zeigen:

Fig.1
eine schematische Seitenansicht eines Rundkammes einer Kämmmaschine mit einer erfindungsgemäss ausgebildeten Befestigung eines Kämmelementes
Fig.2
eine Draufsicht X nach Fig.1
Fig.3
eine vergrösserte Teilansicht nach Fig.1 eines Ausführungsbeispieles
Fig.4
eine vergrösserte Teilansicht nach Fig.1 eines weiteren Ausführungsbeispieles
Show it:
Fig.1
a schematic side view of a circular comb of a combing machine with an inventively designed attachment of a combing element
Fig.2
a top view X after Fig.1
Figure 3
an enlarged partial view Fig.1 an embodiment
Figure 4
an enlarged partial view Fig.1 a further embodiment

Fig.1 zeigt einen Rundkamm 1 mit einer Rundkammwelle 2 auf welcher drehfest zwei, im Abstand zueinander angeordnete Flansche 4 angebracht sind. Dies ist insbesondere auch aus der Teilansicht X nach Fig.1 in der Fig.2 zu entnehmen. Auf einem Teilumfang der Flansche 4 ist ein Grundkörper 5 befestigt, der auf seiner Umfangsfläche U mehrere hintereinander angeordnete Kämmelemente K1 bis K4 trägt. Die Kämmelemente K1-K4 weisen im vorliegenden Beispiel einen Haltestab H1-H4 auf, auf welchem jeweils Garniturelemente G1-G4 befestigt sind. Die Garniturelemente G1-G4 können z.B. über eine Laserschweissnaht auf dem jeweiligen Haltestab H1-H4 befestigt sein, wie dies in der veröffentlichten EP- 2650414 A1 gezeigt und beschrieben wird. Es sind jedoch auch andere Befestigungsarten möglich. Fig.1 shows a circular ridge 1 with a circular comb shaft 2 on which two rotatably mounted, spaced apart flanges 4 are mounted. This is in particular also from the partial view X to Fig.1 in the Fig.2 refer to. On a partial circumference of the flanges 4, a base body 5 is fixed, which carries on its peripheral surface U a plurality of combing elements K1 to K4 arranged one behind the other. In the present example, the combing elements K1-K4 have a holding bar H1-H4, on each of which garnish elements G1-G4 are fastened. The clothing elements G1-G4 can be fastened, for example via a laser weld seam on the respective support rod H1-H4, as shown in the published EP-2650414 A1 is shown and described. However, other types of attachment are possible.

Ein erfindungsgemässes Ausführungsbeispiel der Befestigung des vorderen Kämmelementes K1 wird in Fig.1 und in einer vergrösserten Teilansicht in Fig.3 gezeigt. Die weiteren Kämmelemente K2 bis K4 können, wie in Fig.1 gestrichelt angedeutet ist, in gleicher Weise mit dem Grundkörper 5 verbunden sein. Der Grundkörper 5 ist dabei im Auflagebereich der Kämmelemente K1-K1 jeweils mit einer ersten Vertiefung V1 versehen, welchen sich längs zu Drehachse D der Rundkammwelle 2 erstreckt. Diese Vertiefung V1 wird durch zwei im Abstand b zueinander angeordnete Stützrippen S1, S2 gebildet, welche sich in einer Längsrichtung L der Kämmelemente K1-K4, bzw. parallel zur Drehachse D erstrecken, wie auch aus der Draufsicht X (nach Fig.1) der Fig.2 zu entnehmen ist. Auf diesen Stützrippen stützt sich in montierter Stellung der Haltestab H1 mit seiner Grundfläche F1 ab. Im Bereich der ersten Vertiefung V1 sind weitere, im Abstand a zueinander angeordnete kreisförmige Vertiefungen V2 vorgesehen, in welche Halteelemente 10 zumindest teilweise hineinragen. In die jeweilige Vertiefung V2 mündet eine kreisförmige Durchgangsöffnung 12 mit einem Durchmesser d2. Durch die jeweilige Durchgangsöffnung 12 ragt ein Mittenabschnitt 14 eines Gewindebolzens 6, welcher einen ersten Endabschnitt E1 aufweist, der mit einem Gewinde versehen ist. Der Mittenabschnitt 14 weist einen Durchmesser d auf, welcher grösser ist als der Durchmesser d1 des ersten Endabschnittes E1 des Gewindebolzens. Dadurch entsteht ein Absatz 15 zwischen dem Mittenabschnitt 14 und dem ersten Endabschnitt E1 des Gewindebolzens 6. Mit der, im Bereich des Absatzes 15 den Durchmesser d1 überragenden Stirnfläche 16 des Mittenbereiches 14 kommt der Mittenbereich des Gewindebolzens zur Anlage auf einer unteren Fläche 17 des Halteelementes 10, wenn der erste Endabschnitt E1 des Gewindebolzens 6 vollständig in eine Gewindebohrung 18 des jeweiligen Halteelementes eingeschraubt ist (siehe Fig.3). Das Halteelement 10, von welchem mehrere im Abstand a zueinander in Längsrichtung L des Kämmelementes K1 angeordnet sind, ist im gezeigten Beispiel der Fig.3 stufenförmig ausgebildet und weist einen ersten zylindrischen Abschnitt 20 auf, der mit einem Gewinde 21 versehen ist. Der zweite Abschnitt 23 des Halteelementes 10 erstreckt sich über den Durchmesser des ersten Abschnittes 20 und weist eine untere Fläche 17 auf, auf welcher die Stirnfläche 16 des Mittenbereiches des Gewindebolzens 6 in der gezeigten montierten Stellung zur Anlage kommt. Über das Gewinde 21 wird der Abschnitt 20 des Halteelementes 10 in eine Gewindebohrung 22 des Haltestabes H1 eingeschraubt und befestigt. Im eingeschraubten Zustand des Abschnittes 20 des Halteelementes 10 (Fig.3) kommt eine, den ersten Abschnitt 20 überragende obere Fläche 24 des zweiten Abschnittes 23 des Halteelementes 10 zur Anlage an die Grundfläche F1 des Haltestabes H1 und ist in dieser Position fixiert.An inventive embodiment of the attachment of the front Kämmelementes K1 is in Fig.1 and in an enlarged partial view in Figure 3 shown. The further combing elements K2 to K4 can, as in Fig.1 is indicated by dashed lines, be connected in the same way with the main body 5. The main body 5 is provided in the contact area of the Kämmelemente K1-K1 each with a first recess V1, which extends longitudinally to the axis of rotation D of the circular comb shaft 2. This depression V1 is formed by two supporting ribs S1, S2 arranged at a distance b from each other, which extend in a longitudinal direction L of the combing elements K1-K4, or parallel to the axis of rotation D, as well as from the plan view X (FIG Fig.1 ) of the Fig.2 can be seen. In the mounted position, the support rod H1 is supported with its base F1 on these support ribs. In the region of the first recess V1 further, at a distance a mutually arranged circular recesses V2 are provided, into which holding elements 10 at least partially protrude. In the respective recess V2 opens a circular passage opening 12 with a diameter d2. Through the respective passage opening 12 projects a central portion 14 of a threaded bolt 6, which has a first end portion E1, which is provided with a thread. The middle section 14 has a diameter d which is greater than the diameter d1 of the first end section E1 of the threaded bolt. This results in a shoulder 15 between the middle portion 14 and the first end portion E1 of the threaded bolt 6. With the, in the region of paragraph 15 the diameter d1 superior face 16 of the central region 14 of the central region of the threaded bolt comes to rest on a lower surface 17 of the holding element 10th when the first end portion E1 of the threaded bolt 6 is completely screwed into a threaded bore 18 of the respective holding element (see Figure 3 ). The holding element 10, of which several are arranged at a distance a from one another in the longitudinal direction L of the combing element K1, is in the example shown Figure 3 stepped and has a first cylindrical portion 20 which is provided with a thread 21. The second portion 23 of the retaining element 10 extends over the diameter of the first portion 20 and has a lower surface 17 on which the end face 16 of the central region of the threaded bolt 6 comes into abutment in the illustrated assembled position. Via the thread 21, the portion 20 of the holding element 10 is screwed into a threaded bore 22 of the retaining rod H1 and fastened. In the screwed-in state of the section 20 of the holding element 10 (FIG. Figure 3 ) is a, the first portion 20 superior upper surface 24 of the second portion 23 of the holding element 10 for engagement with the base F1 of the retaining rod H1 and is fixed in this position.

Der Gewindebolzen 6 weist einen zweiten Endabschnitt E2 auf, welcher dem Endabschnitte E1 gegenüberliegt und an den Mittenabschnitt 14 anschliesst. Der Endabschnitt E2 weist zumindest teilweise eine äussere Abmessung, bzw. einen Durchmesser d3 auf, welcher grösser ist als der Durchmesser d2 der Durchgangsöffnung 12, durch welche der Mittenabschnitt 14 des Gewindebolzens hindurchragt. Zwischen einer inneren Stützfläche 26 des Grundkörpers 5 und einer Stützfläche 28 des zweiten Endabschnittes E2 ist auf dem Mittenabschnitt 14 des Gewindebolzens 6 eine Druckfeder in Form einer Schraubenfeder 30 angebracht. Anstelle der Schraubenfeder 30 kann auch eine Wellenfeder 31 zur Anwendung kommen, welche im Beispiel der Fig.4 gezeigt wird. Der Aussendurchmesser des jeweiligen Federelementes 30, bzw. 31 ist so gewählt, so dass das Federelement die Durchgangsbohrung 12 überragt und auf der inneren Stützfläche 26 des Grundkörpers zur Anlage kommt. Über das jeweilige Federelement 30 (31) wird bei der Montage des jeweiligen Kämmelementes K1 (K2, K3, K4) eine Kraft M erzeugt, über welche der Haltestab H1 (H2-H4) des jeweiligen Kämmelement K1 (K2-K4) mit seiner Stützfläche F1 gegen die Umfangsfläche U des Grundkörpers verspannt wird, wobei sie auf den Stegen S1, S2 zur Anlage kommt.The threaded bolt 6 has a second end portion E 2, which is opposite to the end portions E 1 and adjoins the center portion 14. The end portion E2 has at least partially an outer dimension, or a diameter d3, which is greater than the diameter d2 of the through hole 12 through which the center portion 14 of the threaded bolt protrudes. Between an inner support surface 26 of the main body 5 and a support surface 28 of the second end portion E2, a compression spring in the form of a helical spring 30 is mounted on the central portion 14 of the threaded bolt 6. Instead of the coil spring 30, a wave spring 31 may be used, which in the example of Figure 4 will be shown. The outer diameter of the respective spring element 30, or 31 is selected so that the spring element projects beyond the through hole 12 and comes to rest on the inner support surface 26 of the base body. During the assembly of the respective combing element K1 (K2, K3, K4), a force M is generated via the respective spring element 30 (31), via which the holding bar H1 (H2-H4) of the respective combing element K1 (K2-K4) with its supporting surface F1 is braced against the peripheral surface U of the body, wherein it comes to rest on the webs S1, S2.

Das Ausführungsbeispiel nach Fig.4 unterscheidet sich vom Ausführungsbeispiel nach Fig.3 durch eine andere Befestigungsart, bzw. eine andere Ausführung des Halteelementes 40. Dabei weist das jeweilige Halteelement 40 einen ersten Abschnitt 41 (z. B. zylinderförmig) auf, welcher in die Vertiefungen V1 und V2 des Grundkörpers 5 hineinragt. Daran schliesst ein weiterer Abschnitt 42 (zylinderförmig oder quadratisch), welcher in einen Längsschlitz 45 ragt, welcher in Längsrichtung L des Haltestabes H1 verläuft. Der an den Abschnitt 42 anschliessende Endabschnitt 43 des Halteelementes 40 kann z.B. eine quadratische oder rechteckige Querschnittsform aufweisen, wie dies z. B. in der Darstellung der Fig.2 auf der rechten Seite angedeutet wird. Der Endabschnitt 43, der den Abschnitt 42 überragt, ist in einen Längsschlitz 47 des Haltestabes H1 eingeschoben und entsprechend der Durchgangsöffnung im Grundkörper positioniert.The embodiment according to Figure 4 differs from the embodiment according to Figure 3 In this case, the respective holding element 40 has a first section 41 (for example, cylindrical), which projects into the depressions V1 and V2 of the main body 5. This is followed by another section 42 (cylindrical or square), which projects into a longitudinal slot 45 which extends in the longitudinal direction L of the retaining rod H1. The adjoining the section 42 end portion 43 of the holding member 40 may for example have a square or rectangular cross-sectional shape, as z. B. in the representation of Fig.2 indicated on the right side. The end portion 43, which projects beyond the portion 42, is inserted into a longitudinal slot 47 of the retaining rod H1 and positioned corresponding to the passage opening in the base body.

Das Halteelement 40 ist wie das Halteelement 10 mit einer Gewindebohrung 18 versehen, in welche der Endanschnitt E1 des Gewindebolzens 6 eingeschraubt ist. Als Federelement wird im Ausführungsbeispiel der Fig.4 eine Wellenfeder 31 eingesetzt. Die übrigen Bestandteile entsprechen dem Ausführungsbeispiel der Fig.3 und werden deshalb hier nicht weiter beschrieben.The holding member 40 is like the holding member 10 is provided with a threaded bore 18 into which the end gate E1 of the threaded bolt 6 is screwed. As a spring element is in the embodiment of Figure 4 a wave spring 31 is inserted. The remaining components correspond to the embodiment of Figure 3 and will therefore not be described further here.

Wie aus der Ansicht X (nach Fig. 1) der Fig.2 zu entnehmen, sind in Längsrichtung L des jeweiligen Kämmelementes K1 (K2-K4) mehrere Gewindebolzen 8 zur Befestigung des Kämmelementes eingesetzt. Auch die weiteren Kämmelemente K2-K4 werden in der beschriebenen Form auf dem Grundkörper 5 befestigt, wobei die jeweiligen Haltestäbe H2-H4 ebenfalls auf Stützrippen S1, S2 aufliegen, welche auf der Umfangsfläche U des Grundkörpers angebracht sind, was gestrichelt aus der Fig.1 zu entnehmen ist.As seen from the view X (after Fig. 1 ) of the Fig.2 can be seen, in the longitudinal direction L of the respective Kämmelementes K1 (K2-K4) a plurality of threaded bolts 8 are used for fastening the combing element. The other combing elements K2-K4 are mounted in the form described on the base body 5, wherein the respective support rods H2-H4 also rest on support ribs S1, S2, which are mounted on the peripheral surface U of the base body, which in dashed lines from the Fig.1 can be seen.

Bei der Montage des Kämmelementes K1 auf dem Grundkörper 5 werden nach dem Ausführungsbeispiel der Fig.3 die vorgesehene Anzahl von Halteelementen 10 über den, mit einem Gewinde 21 versehenen Abschnitt 20 in die jeweilige Gewindebohrung 22 des Haltestabes 10 eingedreht, bis die obere Fläche 24 des Abschnittes 23 zur Anlage an die Grundfläche F1 des Haltestabes H1 gelangt. Anschliessend wird das vormontierte Kämmelement K1 auf dem Grundkörper 5 derart positioniert, so dass die jeweiligen Abschnitte 23 des Haltestabes 10 in die Vertiefungen V1 und V2 ragen und die Gewindebohrungen 18 den Durchgangsöffnungen 12 des Grundkörpers 5 gegenüberstehen. Dann werden von der Unterseite des Grundköpers 5 im Bereich seiner inneren Stützfläche 26 nacheinander Gewindebolzen 6 durch die Durchgangsöffnungen 12 durchgeführt und mit ihren ersten, ein Gewinde aufweisenden Endabschnitten E1 in die Gewindebohrung 18 des Halteelementes 10 eingedreht, bis die Stirnfläche 16 des Mittenabschnittes 14 auf der unteren Fläche 17 des Halteelementes 10 aufliegt. Vor dem Einführen der Gewindebolzen 6 in die Durchgangsöffnung 12 wird ein Federelement 30 (31) auf den Mittenabschnitt 14 aufgesteckt und zur Anlage auf der Stützfläche 28 des zweiten Endabschnittes E2 gebracht. Dieser Endabschnitt E2 kann als Schraubenkopf ausgebildet sein oder, wie schematisch angedeutet, mit einem Innensechskant P versehen sein, über welchen der Gewindebolzen gedreht werden kann.When mounting the combing element K1 on the base body 5 are according to the embodiment of the Figure 3 the intended number of retaining elements 10 are screwed into the respective threaded bore 22 of the retaining rod 10 via the section 20 provided with a thread 21 until the upper surface 24 of the section 23 comes to bear against the base area F1 of the retaining rod H1. Subsequently, the preassembled Kämmelement K1 is positioned on the base body 5 so that the respective portions 23 of the support rod 10 protrude into the recesses V1 and V2 and the threaded holes 18 facing the through holes 12 of the main body 5. Then, in the region of its inner support surface 26, threaded bolts 6 are successively made from the underside of the main body 5 through the passage openings 12 and screwed into the threaded bore 18 of the holding element 10 with their first end sections E1 having threads, until the end face 16 of the center section 14 is in contact with the bottom surface 17 of the holding element 10 rests. Before inserting the threaded bolt 6 in the through hole 12, a spring element 30 (31) attached to the center portion 14 and brought to rest on the support surface 28 of the second end portion E2. This end portion E2 may be formed as a screw head or, as indicated schematically, be provided with a hexagon socket P over which the threaded bolt can be rotated.

Beim Einschrauben des ersten Endabschnittes E1 in das Halteelement 10 wird das Federelement 30 zusammengedrückt und gespannt. Da sich das Federelement 30 (31) auf der inneren Stützfläche 26 abstützt, wird durch die, beim Spannen des Federelementes 30 resultierende Federkraft, eine Kraft M erzeugt, über welche der zweite Endabschnitt E2 des Gewindebolzens 6 von der inneren Stützfläche des Grundkörpers 5 weggedrückt wird. Dadurch wird auch das, über das Halteelement 10 mit dem Gewindebolzen verbundene Kämmelement mit seiner Grundfläche F1 gegen die Umfangsfläche U des Grundkörpers 5 im Bereich der Stützrippen S1, S2 gedrückt, bzw. verspannt. Ein überziehen der jeweiligen Gewindebolzen ist somit ausgeschlossen, da dieser mit seinem Absatz 15 zu einem Endanschlag an der Fläche 17 des Halteelementes kommt. D.h., das Kämmelement wird ausschliesslich über die resultierende Federkraft des Federelementes 30 (31) gegen den Aussenumfang U des Grundkörpers verspannt und in dieser Lage fixiert. Durch die vorgegebenen geometrischen Verhältnisse der Gewindebolzen und des Halteelementes wird eine gleichmässige und konstante Anpresskraft an allen Befestigungsstellen gewährleistet. Das Anzugsmoment der Gewindebolzen hat keinen Einfluss mehr auf die Anpresskraft, mit welcher das jeweilige Kämmelement gegen die Umfangsfläche U des Grundkörpers 5 verspannt, bzw. gedrückt wird.When screwing the first end portion E1 in the holding member 10, the spring element 30 is compressed and tensioned. Since the spring element 30 (31) is supported on the inner support surface 26, a force M is generated by the, resulting in tensioning of the spring element spring force, over which the second end portion E2 of the threaded bolt 6 is pushed away from the inner support surface of the main body 5 , This is also the case, via the retaining element 10 with the threaded bolt connected combing element with its base F1 pressed against the peripheral surface U of the base body 5 in the region of the support ribs S1, S2, or braced. A coating of the respective threaded bolt is thus excluded, since this comes with its paragraph 15 to an end stop on the surface 17 of the holding element. That is, the combing element is clamped exclusively on the resulting spring force of the spring element 30 (31) against the outer circumference U of the body and fixed in this position. By the given geometric conditions of the threaded bolt and the holding element a uniform and constant contact pressure is ensured at all attachment points. The tightening torque of the threaded bolt has no influence on the contact pressure, with which the respective combing element is clamped against the peripheral surface U of the main body 5, or pressed.

Bei der Montage des in Fig.4 gezeigten Ausführungsbeispieles wird das dort gezeigte Halteelement 40 nicht in den Haltestab H1 eingeschraubt, sondern über seinen Endabschnitt 43 seitlich in einen Längsschlitz 47 des Haltestabes eingeschoben, wie teilweise auch auf der rechten Seite der Darstellung der Fig.2 dargestellt wird. Beim Aufsetzen des Kämmelementes K1 werden dann die eingeschobenen Halteelemente so positioniert, dass ihre Gewindebohrung 18 der jeweiligen Durchgangsöffnung 12 des Grundkörpers gegenübersteht. Es ist auch denkbar, Markierungen im Bereich der Grundfläche F1 des Haltestabes H1 vorzusehen, über welche die Halteelemente 40 beim Einschieben in den Längsschlitz 47 bereits schon in die richtige Position gebracht werden können.When mounting the in Figure 4 the embodiment shown, the retaining element 40 shown there is not screwed into the support rod H1, but laterally inserted over its end portion 43 in a longitudinal slot 47 of the retaining rod, as partially on the right side of the representation of Fig.2 is pictured. When placing the combing element K1 then the inserted holding elements are positioned so that their threaded hole 18 of the respective passage opening 12 of the main body facing. It is also conceivable to provide markings in the region of the base area F1 of the retaining rod H1, by means of which the retaining elements 40 can already be brought into the correct position during insertion into the longitudinal slot 47.

Die weiteren Montageschritte zur Befestigung des Kämmelementes K1 entsprechen denjenigen, welche bereits schon zum Ausführungsbeispiel der Fig.3 beschrieben worden sind. Die übrigen, in Fig.1 gezeigten Kämmelemente K2-K4 werden in gleicher Weise auf dem Grundkörper 5 befestigt, wie dies beim Kämmelement K1 beschrieben wurde.The further assembly steps for fixing the combing element K1 correspond to those which already for the embodiment of Figure 3 have been described. The rest, in Fig.1 shown Kämmelemente K2-K4 are mounted in the same manner on the base body 5, as has been described in the combing element K1.

Wie gestrichelt in Fig.4 angedeutet, könnte das jeweilige Halteelement 40 auch über eine Schweissnaht mit dem Haltestab H1 verbunden sein. Es ist auch denkbar das Halteelement mit dem Haltestab über eine Klebeverbindung zu verbinden. Eine andere Möglichkeit wäre eine einstückige Anformung eines Halteelementes an den Haltestab. In diesen Fällen ist das jeweilige Halteelement fix und unlösbar mit dem Halteelement verbunden.As dashed in Figure 4 indicated, the respective holding element 40 could also be connected via a weld with the support rod H1. It is also conceivable to connect the holding element to the holding bar via an adhesive connection. Another possibility would be a one-piece molding of a holding element to the support rod. In these cases, the respective holding element is fixed and permanently connected to the holding element.

Die vorgeschlagene Befestigungsart der Kämmelemente auf einem Grundträger eines Rundkammes ermöglicht eine einfache und schnelle Montage und Demontage der Kämmelemente, wobei das Anziehmoment der verwendeten Gewindebolzen keinen Einfluss auf die Anpresskraft des jeweiligen Kämmelementes auf dem Aussenumfang U des Grundkörpers ausübt.The proposed fastening of the combing elements on a base support of a circular comb allows for easy and quick assembly and disassembly of the combing elements, wherein the tightening torque of the threaded bolt used exerts no influence on the contact pressure of the respective combing element on the outer circumference U of the body.

Claims (8)

Rundkamm (1) einer Kämmmaschine mit einem, parallel zu seiner Drehachse (D) angeordneten Grundkörper (5), auf dessen Aussenumfang (U) mindestens ein Kämmelement (K1-K4) aufliegt und wenigstens einem, mit dem Kämmelement verbundenen Halteelement (10, 40), welches wenigstens eine Gewindebohrung (18) aufweist, in welche jeweils ein erster, mit einem Gewinde versehener Endabschnitt (E1) eines Gewindebolzens (6) hineinragt, welcher einen Mittenabschnitt (14) aufweist, der durch eine radial ausgerichtete Öffnung (12) des Grundkörpers (5) hindurchragt und der Gewindebolzen (6) mit einem zweiten Endabschnitt (E2) versehen ist, mit welchem er sich auf einer inneren Stützfläche (26) des Grundkörpers (5) im Bereich der jeweiligen Öffnung (12) abstützt, wobei die Querschnittsfläche des zweiten Endabschnittes (E2) die Querschnittsfläche der jeweiligen Öffnung (12) zumindest teilweise überragt, dadurch gekennzeichnet, dass der erste Endabschnitt (E1) des jeweiligen Gewindebolzens (6) einen kleineren Durchmesser (d1) aufweist als der Durchmesser (d) des Mittenabschnittes (14) und zwischen der inneren Stützfläche (26) des Grundkörpers (5) und dem zweiten Endabschnitt (E2) des Gewindebolzens (6) ein Federelement (30, 31) vorgesehen ist.Circular comb (1) of a comber having a base body (5) arranged parallel to its axis of rotation (D), on the outer circumference (U) of which at least one combing element (K1-K4) rests and at least one holding element (10, 40) connected to the combing element ), which has at least one threaded bore (18) into which in each case a first, threaded end portion (E1) of a threaded bolt (6) protrudes, which has a central portion (14) through a radially oriented opening (12) of the Protruding base body (5) and the threaded bolt (6) having a second end portion (E2), with which it is supported on an inner support surface (26) of the base body (5) in the region of the respective opening (12), wherein the cross-sectional area the second end portion (E2) at least partially surmounted the cross-sectional area of the respective opening (12), characterized in that the first end portion (E1) of the respective threaded bolt (6) a smaller diameter (d1) than the diameter (d) of the central portion (14) and between the inner support surface (26) of the base body (5) and the second end portion (E2) of the threaded bolt (6) has a spring element (30, 31) is provided. Rundkamm nach Anspruch 1, dadurch gekennzeichnet, dass in montierter Stellung des jeweiligen Kämmelementes (K1-K4) das Federelement (30, 31) gespannt ist und das, dem ersten Endabschnitt (E1) gegenüberliegende Ende (16) des Mittenabschnittes (14) des Gewindebolzens (6) auf dem Halteelement (10, 40) im Bereich der Gewindebohrung (18) aufliegt.Circular comb according to claim 1, characterized in that in the mounted position of the respective combing element (K1-K4), the spring element (30, 31) is tensioned and, the first end portion (E1) opposite end (16) of the central portion (14) of the threaded bolt (6) rests on the retaining element (10, 40) in the region of the threaded bore (18). Rundkamm nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das jeweilige Halteelement (10, 40) lösbar mit dem Kämmelement (K1-K4) verbunden ist.Circular comb according to one of the preceding claims, characterized in that the respective holding element (10, 40) is releasably connected to the combing element (K1-K4). Rundkamm nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Grundkörper (5) radial nach aussen gerichtete Aussparungen (V1, V2) aufweist, in welche das jeweilige Halteelement (10, 40) hineinragt.Circular comb according to one of the preceding claims, characterized in that the base body (5) radially outwardly directed recesses (V1, V2) has, in which the respective holding element (10, 40) protrudes. Rundkamm nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass, in Umfangsrichtung des Rundkammes gesehen, der Grundkörper (5) mit im Abstand zueinander angeordneten Stützrippen (S1, S2) versehen ist, auf welchen die Endbereiche der jeweiligen Kämmelemente (K1-K4) aufliegen, wobei die Stützrippen (S1, S2) parallel zur Drehachse (D) des Rundkammes (1) verlaufen.Circular comb according to one of the preceding claims, characterized in that , viewed in the circumferential direction of the circular comb, the base body (5) is provided with mutually spaced support ribs (S1, S2) on which rest the end portions of the respective combing elements (K1-K4) , wherein the support ribs (S1, S2) parallel to the axis of rotation (D) of the circular comb (1). Rundkamm nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet dass die Federelemente Schraubenfedern (30) sind.Circular comb according to one of the preceding claims, characterized in that the spring elements are helical springs (30). Rundkamm nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Federelemente Wellenfedern (31) sind.Circular comb according to one of claims 1 to 5, characterized in that the spring elements are wave springs (31). Kämmmaschine mit wenigstens einem Rundkamm (1) nach einem der vorhergehenden Ansprüche.Combing machine with at least one circular comb (1) according to one of the preceding claims.
EP16186208.1A 2015-09-11 2016-08-30 Fastening device for comb elements on a circular comb Active EP3141638B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH01317/15A CH711514A1 (en) 2015-09-11 2015-09-11 <TITLE> Circular comb of a combing machine with a threaded bolt.

Publications (2)

Publication Number Publication Date
EP3141638A1 true EP3141638A1 (en) 2017-03-15
EP3141638B1 EP3141638B1 (en) 2020-02-19

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EP16186208.1A Active EP3141638B1 (en) 2015-09-11 2016-08-30 Fastening device for comb elements on a circular comb

Country Status (7)

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US (1) US10301749B2 (en)
EP (1) EP3141638B1 (en)
JP (1) JP2017053079A (en)
KR (1) KR20170031611A (en)
CN (1) CN106521728A (en)
BR (1) BR102016018725A2 (en)
CH (1) CH711514A1 (en)

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EP3754055A1 (en) * 2019-06-17 2020-12-23 Graf + Cie AG Circular comb for a combing machine

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CH711515A1 (en) * 2015-09-11 2017-03-15 Graf + Cie Ag <TITLE> Round comb with a fixing element.
CN108385213B (en) * 2018-05-22 2023-08-15 海盐兴达纺针科技有限公司 Needle core
CH715429A1 (en) * 2018-10-04 2020-04-15 Graf Cie Ag Round comb carrier for a comber

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Also Published As

Publication number Publication date
US20170073847A1 (en) 2017-03-16
JP2017053079A (en) 2017-03-16
CH711514A1 (en) 2017-03-15
US10301749B2 (en) 2019-05-28
EP3141638B1 (en) 2020-02-19
CN106521728A (en) 2017-03-22
BR102016018725A2 (en) 2017-03-21
KR20170031611A (en) 2017-03-21

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