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EP3141638B1 - 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
EP3141638B1
EP3141638B1 EP16186208.1A EP16186208A EP3141638B1 EP 3141638 B1 EP3141638 B1 EP 3141638B1 EP 16186208 A EP16186208 A EP 16186208A EP 3141638 B1 EP3141638 B1 EP 3141638B1
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EP
European Patent Office
Prior art keywords
base body
comb
threaded bolt
circular comb
end section
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.)
Active
Application number
EP16186208.1A
Other languages
German (de)
French (fr)
Other versions
EP3141638A1 (en
Inventor
Arnold VETTERLI
Markus SCHILTER
Urs Müller
Urs Schiltknecht
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Graf und Cie AG
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Graf und Cie AG
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Publication date
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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 round comb of a combing machine with a base body arranged parallel to its axis of rotation, on the outer circumference (circumferential surface) of which at least one combing element rests and at least one holding element connected to the combing element, which has at least one threaded bore, into each of which a first protrudes with a threaded end portion of a threaded bolt 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 is supported 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 section at least partially projects beyond the cross-sectional area of the respective opening.
  • the combing elements for a circular comb consist of several tooth segments provided with a set of teeth, which are held together by longitudinal bolts.
  • the longitudinal bolts protrude into bores which are provided in the tooth segments.
  • Several comb elements arranged one behind the other also called bars) form a comb segment with a closed comb surface.
  • the toothed segments of the respective combing element are provided with a dovetail-shaped recess, via which they are connected to a base body of the circular comb via a holding body.
  • 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 in a correspondingly designed recess of the base body by means of a screw connection.
  • a similar version is from the published CH 706 344 A2 known, tooth sets are fastened on a holding rod which are connected to a base body via dovetail-shaped fastening means.
  • a screw connection is provided via which the fastening means is connected to the base body.
  • maximum torques are specified for tightening the screws, via which the holding body or the holding rods to attach the combing elements to the base body, or be braced. This specification of maximum torque is intended to prevent the combing elements from warping when they are braced against the outer circumferential surface of the base body during the fastening process.
  • the object of the invention is therefore to propose a device which avoids the disadvantages of known designs described and prevents the threaded bolts from being pulled over when the combing elements are fastened to the base body of the circular comb.
  • first end section of the respective threaded bolt has a smaller diameter than the diameter of the central section and a spring element is provided between the inner support surface of the base body and the second end section of the threaded bolt.
  • the proposed difference in diameter between the central section and the first end section of the respective threaded bolt ensures that the first end section of the threaded bolt, which is provided with a thread, can only be screwed into a threaded bore of the holding element until the threaded bolt with the existing shoulder between the first end section and the middle section rests on the holding element.
  • the spring between an inner support surface of the base body and the second end section of the threaded bolt, whereby the combing element is clamped by means of the holding element via the spring force of the spring against the outer circumference (or its peripheral surface) of the base body.
  • the fastening or the pressing force of the respective combing element on the base body is no longer carried out via the amount of the tightening torque of the respective threaded bolt, but rather via the spring force of the spring element.
  • the dimension of the respective threaded bolt is preferably designed such that in the assembled position of the respective combing element the spring element is tensioned and the end of the central portion of the threaded bolt opposite the first end section rests on the holding element 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. Seen in the direction of the axis of rotation of the circular comb, d. H. Over the length of the respective combing element, at least two threaded bolts are provided in order to fix the combing element on the base body.
  • the respective holding element is releasably connected to the combing element. This makes it possible to use the holding elements previously used when replacing a combing element in the newly inserted combing element.
  • the base body have radially outwardly directed cutouts into which the respective holding element projects.
  • the base body is provided with spaced-apart support ribs on which the end regions of the respective comb elements rest, the support ribs running parallel to the axis of rotation of the circular comb. This will make it a safe circulation of the respective combing element on the outer circumference of the base body in the area of the supporting ribs.
  • the spring elements are preferably designed as helical springs or as wave springs.
  • the spring element can thus be designed in a small, compact design, the spring force generated being sufficient to hold the combing element securely on the outer circumference of the base body.
  • a combing machine which has at least one circular comb designed according to the invention.
  • Fig.1 shows a round comb 1 with a round comb shaft 2 on which two flanges 4, which are arranged at a distance from one another, are attached in a rotationally fixed manner. This is particularly evident from the partial view X.
  • Fig.1 in the Fig.2 refer to.
  • a base body 5 is fastened on a partial circumference of the flanges 4 and carries a plurality of combing elements K1 to K4 arranged one behind the other on its circumferential surface U.
  • the combing elements K1-K4 in the present example have a holding rod H1-H4, on each of which clothing elements G1-G4 are fastened.
  • the clothing elements G1-G4 can, for example, be fastened to the respective holding rod H1-H4 by means of a laser welding seam, as described in the published one EP-2650414 A1 is shown and described. However, other types of fastening are also possible.
  • FIG.1 An exemplary embodiment according to the invention of fastening the front combing element K1 is shown 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 to the base body 5.
  • the base body 5 is provided in the contact area of the combing elements K1-K1 with a first depression V1, which extends along the axis of rotation D of the round comb shaft 2.
  • This depression V1 is formed by two support ribs S1, S2 arranged at a distance b from one another, 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 top view X (according to Fig.1 ) the Fig.2 can be seen.
  • the holding rod H1 In the assembled position, the holding rod H1 is supported with its base F1 on these support ribs.
  • a circular through-opening 12 with a diameter d2 opens into the respective recess V2.
  • the central section 14 has a diameter d which is larger than the diameter d1 of the first end section E1 of the threaded bolt. This creates a shoulder 15 between the central section 14 and the first end section E1 of the threaded bolt 6. With the end face 16 of the central region 14 projecting beyond the diameter d1 in the region of the shoulder 15, the central region of the threaded bolt comes to rest on a lower surface 17 of the holding element 10 , when the first end section 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 the example shown in FIG Figure 3 stepped and has a first cylindrical portion 20 which is provided with a thread 21.
  • the second section 23 of the holding element 10 extends over the diameter of the first section 20 and has a lower surface 17, on which the end surface 16 of the central region of the threaded bolt 6 comes to rest in the assembled position shown.
  • the section 20 of the holding element 10 is screwed and fastened into a threaded bore 22 of the holding rod H1 via the thread 21.
  • the threaded bolt 6 has a second end section E2, which lies opposite the end sections E1 and adjoins the center section 14.
  • the end section E2 at least partially has an outer dimension, or a diameter d3, which is larger than the diameter d2 of the through opening 12 through which the central section 14 of the threaded bolt projects.
  • a compression spring in the form of a helical spring 30 is attached to the center section 14 of the threaded bolt 6.
  • a wave spring 31 can also be used, which in the example of FIG Figure 4 will be shown.
  • the outer diameter of the respective spring element 30 or 31 is selected such that the spring element projects beyond the through bore 12 and comes to rest on the inner support surface 26 of the base body.
  • a force M is generated via the respective spring element 30 (31) during assembly of the respective combing element K1 (K2, K3, K4), by means of which the holding rod H1 (H2-H4) of the respective combing element K1 (K2-K4) with its supporting surface F1 is clamped against the peripheral surface U of the base body, where it comes to rest on the webs S1, S2.
  • the embodiment according to Figure 4 differs from the exemplary embodiment Figure 3 by a different type of fastening or a different design of the holding element 40.
  • the respective holding element 40 has a first section 41 (for example cylindrical) which projects into the depressions V1 and V2 of the base body 5. This is followed by a further section 42 (cylindrical or square) which projects into a longitudinal slot 45 which runs in the longitudinal direction L of the holding rod H1.
  • the end section 43 of the holding element 40 adjoining the section 42 can, for example, have a square or rectangular cross-sectional shape, as is shown, for example, in FIG. B. in the representation of Fig.2 is indicated on the right.
  • the end section 43 which projects beyond the section 42, is inserted into a longitudinal slot 47 of the holding rod H1 and is positioned in the base body in accordance with the through opening.
  • the holding element 40 is provided with a threaded bore 18, into which the end cut E1 of the threaded bolt 6 is screwed.
  • a wave spring 31 is used as a spring element in the embodiment Figure 4 . The remaining components correspond to the embodiment of FIG Figure 3 and are therefore not further described here.
  • FIG.2 As from view X (after Fig.1 ) the Fig.2 can be seen, several threaded bolts 8 are used in the longitudinal direction L of the respective combing element K1 (K2-K4) for fastening the combing element.
  • the other combing elements K2-K4 are also fastened in the form described on the base body 5, the respective holding rods H2-H4 also resting on support ribs S1, S2 which are attached to the peripheral surface U of the base body, which is shown in dashed lines from FIG Fig.1 can be seen.
  • the intended number of holding elements 10 is screwed into the respective threaded bore 22 of the holding 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 surface F1 of the holding rod H1.
  • the preassembled combing element K1 is then positioned on the base body 5 such that the respective sections 23 of the holding rod 10 protrude into the recesses V1 and V2 and the threaded bores 18 face the through openings 12 of the base body 5.
  • threaded bolts 6 are successively passed through the through openings 12 from the underside of the base body 5 in the region of its inner support surface 26 and are screwed into the threaded bore 18 of the holding element 10 with their first, threaded end sections E1 until the end face 16 of the center section 14 on the bottom surface 17 of the holding element 10 rests.
  • a spring element 30 (31) is placed on the central section 14 and brought to bear on the support surface 28 of the second end section E2.
  • This end section E2 can be designed as a screw head or, as indicated schematically, can be provided with a hexagon socket P, via which the threaded bolt can be rotated.
  • the combing element is braced against the outer circumference U of the base body exclusively via the resulting spring force of the spring element 30 (31) and fixed in this position.
  • the given geometric relationships of the threaded bolts and the holding element ensure a uniform and constant contact pressure at all fastening points.
  • the tightening torque of the threaded bolts no longer has any influence on the contact pressure with which the respective combing element is braced or pressed against the peripheral surface U of the base body 5.
  • the holding element 40 shown there is not screwed into the holding rod H1, but is laterally inserted via its end section 43 into a longitudinal slot 47 of the holding rod, as is also partially the case on the right-hand side of the illustration in FIG Fig.2 is pictured.
  • the combing element K1 is put on, the inserted holding elements are then positioned such that their threaded bore 18 faces the respective through opening 12 of the base body. It is also conceivable to provide markings in the area of the base area F1 of the holding rod H1, by means of which the holding elements 40 can already be brought into the correct position when inserted into the longitudinal slot 47.
  • the respective holding element 40 could also be connected to the holding rod H1 via a weld seam. It is also conceivable to connect the holding element to the holding rod via an adhesive connection. Another possibility would be a one-piece molding of a holding element on the holding rod. In these cases, the respective holding element is permanently and permanently connected to the holding element.
  • the proposed type of attachment of the combing elements on a base support of a circular comb enables simple and quick assembly and disassembly of the combing elements, the tightening torque of the threaded bolts used having no influence on the contact pressure of the respective combing element on the outer circumference U of the base body.

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

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 round comb of a combing machine with a base body arranged parallel to its axis of rotation, on the outer circumference (circumferential surface) of which at least one combing element rests and at least one holding element connected to the combing element, which has at least one threaded bore, into each of which a first protrudes with a threaded end portion of a threaded bolt 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 is supported 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 section 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 tooth segments provided with a set of teeth, which are held together by longitudinal bolts. The longitudinal bolts protrude into bores which are provided in the tooth segments. Several comb elements arranged one behind the other (also called bars) form a comb segment with a closed comb surface. The toothed segments of the respective combing element are provided with a dovetail-shaped recess, via which they are connected to a base body of the circular comb via a holding body. 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 in a correspondingly designed recess of the base body by means of a screw connection.

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 version is from the published CH 706 344 A2 known, tooth sets are fastened on a holding rod which are connected to a base body via dovetail-shaped fastening means. Here too, a screw connection is provided via which the fastening means is connected to the base body. In practice, maximum torques are specified for tightening the screws, via which the holding body or the holding rods to attach the combing elements to the base body, or be braced. This specification of maximum torque is intended to prevent the combing elements from warping when they are braced against the outer circumferential surface of the base body during the fastening process. When using a torque wrench, these requirements can also be met, so that there are no distortions in the combing elements, which lead to dimensional deviations and can influence the distance between the tooth tips of the combing sets and the lower pliers plate of a pliers 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, so that there is the risk described above that the screws are tightened with a higher torque than is prescribed , This can lead to the described deformations of the combing sets, which can have a negative effect on a distance to be maintained between the lower pliers plate and the tooth tips. In the worst case, collisions between the tooth tips of the sets and the lower pliers plate can result.

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 object of the invention is therefore to propose a device which avoids the disadvantages of known designs described and prevents the threaded bolts from being pulled over when the combing elements are fastened to the base 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 in that it is proposed that the first end section of the respective threaded bolt has a smaller diameter than the diameter of the central section and a spring element is provided between the inner support surface of the base body and the second end section of the threaded bolt.

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 section and the first end section of the respective threaded bolt ensures that the first end section of the threaded bolt, which is provided with a thread, can only be screwed into a threaded bore of the holding element until the threaded bolt with the existing shoulder between the first end section and the middle section rests on the holding element. At the same time, when the threaded bolt is screwed into the holding part, the spring between an inner support surface of the base body and the second end section of the threaded bolt, whereby the combing element is clamped by means of the holding element via the spring force of the spring against the outer circumference (or its peripheral surface) of the base body. In other words, the fastening or the pressing force of the respective combing element on the base body is no longer carried out via the amount of the tightening torque of the respective threaded bolt, but rather via 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.The dimension of the respective threaded bolt is preferably designed such that in the assembled position of the respective combing element the spring element is tensioned and the end of the central portion of the threaded bolt opposite the first end section rests on the holding element 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 comb, d. H. Over the length of the respective combing element, at least two threaded bolts are provided in order to fix 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 to use the holding elements previously used when replacing a combing element in the newly inserted combing element.

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 to the combing element via additional fastening means.

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 in relation to the base body during assembly and to fix it in the assembled position, it is further proposed that the base body have radially outwardly directed cutouts into which the respective holding element projects.

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.It is further proposed that, seen in the circumferential direction of the circular comb, the base body is provided with spaced-apart support ribs on which the end regions of the respective comb elements rest, the support ribs running parallel to the axis of rotation of the circular comb. This will make it a safe circulation of the respective combing element on the outer circumference of the base body in the area of the supporting ribs.

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.The spring elements are preferably designed as helical springs or as wave springs. The spring element can thus be designed in a small, compact design, the spring force generated being sufficient to hold the combing element securely on the outer circumference of the base body.

Des Weiteren wird eine Kämmmaschine beansprucht, welche wenigstens einen erfindungsgemäss ausgebildeten Rundkamm aufweist.Furthermore, a combing machine is claimed which has at least one circular comb designed according to the invention.

Weitere Vorteile der Erfindung werden anhand nachfolgender Ausführungsbeispiele näher aufgezeigt und beschrieben.Further advantages of the invention are shown and described in more detail using the following exemplary 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
is a schematic side view of a round comb of a combing machine with a fastening of a combing element designed according to the invention
Fig.2
a plan view X after Fig.1
Figure 3
an enlarged partial view after Fig.1 of an embodiment
Figure 4
an enlarged partial view after 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 round comb 1 with a round comb shaft 2 on which two flanges 4, which are arranged at a distance from one another, are attached in a rotationally fixed manner. This is particularly evident from the partial view X. Fig.1 in the Fig.2 refer to. A base body 5 is fastened on a partial circumference of the flanges 4 and carries a plurality of combing elements K1 to K4 arranged one behind the other on its circumferential surface U. The combing elements K1-K4 in the present example have a holding rod H1-H4, on each of which clothing elements G1-G4 are fastened. The clothing elements G1-G4 can, for example, be fastened to the respective holding rod H1-H4 by means of a laser welding seam, as described in the published one EP-2650414 A1 is shown and described. However, other types of fastening are also 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, welche 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 exemplary embodiment according to the invention of fastening the front combing element K1 is shown 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 to the base body 5. The base body 5 is provided in the contact area of the combing elements K1-K1 with a first depression V1, which extends along the axis of rotation D of the round comb shaft 2. This depression V1 is formed by two support ribs S1, S2 arranged at a distance b from one another, 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 top view X (according to Fig.1 ) the Fig.2 can be seen. In the assembled position, the holding rod H1 is supported with its base F1 on these support ribs. In the area of the first depression V1 there are further circular depressions V2 which are arranged at a distance a from one another and into which holding elements 10 protrude at least partially. A circular through-opening 12 with a diameter d2 opens into the respective recess V2. A central section 14 of a threaded bolt 6, which has a first end section E1, which is provided with a thread, projects through the respective through opening 12. The central section 14 has a diameter d which is larger than the diameter d1 of the first end section E1 of the threaded bolt. This creates a shoulder 15 between the central section 14 and the first end section E1 of the threaded bolt 6. With the end face 16 of the central region 14 projecting beyond the diameter d1 in the region of the shoulder 15, the central region of the threaded bolt comes to rest on a lower surface 17 of the holding element 10 , when the first end section 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 the example shown in FIG Figure 3 stepped and has a first cylindrical portion 20 which is provided with a thread 21. The second section 23 of the holding element 10 extends over the diameter of the first section 20 and has a lower surface 17, on which the end surface 16 of the central region of the threaded bolt 6 comes to rest in the assembled position shown. The section 20 of the holding element 10 is screwed and fastened into a threaded bore 22 of the holding rod H1 via the thread 21. In the screwed-in state of the section 20 of the holding element 10 ( Figure 3 ), an upper surface 24 of the second section 23 of the holding element 10 projecting beyond the first section 20 comes to rest against the base surface F1 of the holding 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 section E2, which lies opposite the end sections E1 and adjoins the center section 14. The end section E2 at least partially has an outer dimension, or a diameter d3, which is larger than the diameter d2 of the through opening 12 through which the central section 14 of the threaded bolt projects. Between an inner support surface 26 of the base body 5 and a support surface 28 of the second end section E2, a compression spring in the form of a helical spring 30 is attached to the center section 14 of the threaded bolt 6. Instead of the coil spring 30, a wave spring 31 can also be used, which in the example of FIG Figure 4 will be shown. The outer diameter of the respective spring element 30 or 31 is selected such that the spring element projects beyond the through bore 12 and comes to rest on the inner support surface 26 of the base body. A force M is generated via the respective spring element 30 (31) during assembly of the respective combing element K1 (K2, K3, K4), by means of which the holding rod H1 (H2-H4) of the respective combing element K1 (K2-K4) with its supporting surface F1 is clamped against the peripheral surface U of the base body, where 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 exemplary embodiment Figure 3 by a different type of fastening or a different design of the holding element 40. The respective holding element 40 has a first section 41 (for example cylindrical) which projects into the depressions V1 and V2 of the base body 5. This is followed by a further section 42 (cylindrical or square) which projects into a longitudinal slot 45 which runs in the longitudinal direction L of the holding rod H1. The end section 43 of the holding element 40 adjoining the section 42 can, for example, have a square or rectangular cross-sectional shape, as is shown, for example, in FIG. B. in the representation of Fig.2 is indicated on the right. The end section 43, which projects beyond the section 42, is inserted into a longitudinal slot 47 of the holding rod H1 and is positioned in the base body in accordance with the through opening.

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.Like the holding element 10, the holding element 40 is provided with a threaded bore 18, into which the end cut E1 of the threaded bolt 6 is screwed. As a spring element in the embodiment Figure 4 a wave spring 31 is used. The remaining components correspond to the embodiment of FIG Figure 3 and are therefore not further described 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 from view X (after Fig.1 ) the Fig.2 can be seen, several threaded bolts 8 are used in the longitudinal direction L of the respective combing element K1 (K2-K4) for fastening the combing element. The other combing elements K2-K4 are also fastened in the form described on the base body 5, the respective holding rods H2-H4 also resting on support ribs S1, S2 which are attached to the peripheral surface U of the base body, which is shown in dashed lines from FIG 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 according to the embodiment of the Figure 3 the intended number of holding elements 10 is screwed into the respective threaded bore 22 of the holding 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 surface F1 of the holding rod H1. The preassembled combing element K1 is then positioned on the base body 5 such that the respective sections 23 of the holding rod 10 protrude into the recesses V1 and V2 and the threaded bores 18 face the through openings 12 of the base body 5. Then threaded bolts 6 are successively passed through the through openings 12 from the underside of the base body 5 in the region of its inner support surface 26 and are screwed into the threaded bore 18 of the holding element 10 with their first, threaded end sections E1 until the end face 16 of the center section 14 on the bottom surface 17 of the holding element 10 rests. Before the threaded bolts 6 are inserted into the through-opening 12, a spring element 30 (31) is placed on the central section 14 and brought to bear on the support surface 28 of the second end section E2. This end section E2 can be designed as a screw head or, as indicated schematically, can be provided with a hexagon socket P, via 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 the first end section E1 is screwed into the holding element 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 spring force resulting when the spring element 30 is tensioned, by means of which the second end section E2 of the threaded bolt 6 is pressed away from the inner support surface of the base body 5 , This also means that the holding element 10 with the threaded bolt connected combing element with its base F1 against the circumferential surface U of the base body 5 in the region of the support ribs S1, S2, or braced. An overtightening of the respective threaded bolt is therefore ruled out, since this comes with its shoulder 15 to an end stop on the surface 17 of the holding element. That is, the combing element is braced against the outer circumference U of the base body exclusively via the resulting spring force of the spring element 30 (31) and fixed in this position. The given geometric relationships of the threaded bolts and the holding element ensure a uniform and constant contact pressure at all fastening points. The tightening torque of the threaded bolts no longer has any influence on the contact pressure with which the respective combing element is braced or pressed against the peripheral surface U of the base body 5.

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 assembling the in Figure 4 In the exemplary embodiment shown, the holding element 40 shown there is not screwed into the holding rod H1, but is laterally inserted via its end section 43 into a longitudinal slot 47 of the holding rod, as is also partially the case on the right-hand side of the illustration in FIG Fig.2 is pictured. When the combing element K1 is put on, the inserted holding elements are then positioned such that their threaded bore 18 faces the respective through opening 12 of the base body. It is also conceivable to provide markings in the area of the base area F1 of the holding rod H1, by means of which the holding elements 40 can already be brought into the correct position when inserted 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 fastening the combing element K1 correspond to those which already apply to the embodiment of FIG Figure 3 have been described. The rest, in Fig.1 Comb elements K2-K4 shown are fastened to the base body 5 in the same way as was described for the comb 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 to the holding rod H1 via a weld seam. It is also conceivable to connect the holding element to the holding rod via an adhesive connection. Another possibility would be a one-piece molding of a holding element on the holding rod. In these cases, the respective holding element is permanently 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 type of attachment of the combing elements on a base support of a circular comb enables simple and quick assembly and disassembly of the combing elements, the tightening torque of the threaded bolts used having no influence on the contact pressure of the respective combing element on the outer circumference U of the base body.

Claims (8)

  1. A circular comb (1) of a combing machine, comprising a base body (5) which is situated in parallel to its rotation axis (D) and which has at least one comb element (K1-K4) resting on its outer circumference (U), and at least one retaining element (10, 40) which is connected to the comb element and which has at least one threaded bore (18) into which in each case a first end section (E1) of a threaded bolt (6) provided with a thread protrudes, the threaded bolt having a middle section (14) which protrudes through a radially oriented opening (12) in the base body (5), and the threaded bolt (6) being provided with a second end section (E2) with which it is supported on an inner support surface (26) of the base body (5) in the area of the particular opening (12), the cross-sectional area of the second end section (E2) extending, at least partially, beyond the cross-sectional area of the particular opening (12), characterized in that the diameter (d1) of the first end section (E1) of the particular threaded bolt (6) is smaller than the diameter (d) of the middle section (14), and a spring element (30, 31) is provided between the inner support surface (26) of the base body (5) and the second end section (E2) of the threaded bolt (6).
  2. The circular comb according to Claim 1, characterized in that the spring element (30, 31) is tensioned in the installed position of the particular comb element (K1-K4), and the end (16) of the middle section (14) of the threaded bolt (6) opposite from the first end section (E1) rests on the retaining element (10, 40) in the area of the threaded bore (18).
  3. The circular comb according to one of the preceding claims, characterized in that the particular retaining element (10, 40) is detachably connected to the comb element (K1-K4).
  4. The circular comb according to one of the preceding claims, characterized in that the base body (5) has radially outwardly directed recesses (V1, V2) into which the particular retaining element (10, 40) protrudes.
  5. The circular comb according to one of the preceding claims, characterized in that the base body (5), viewed in the circumferential direction of the circular comb, is provided with support ribs (S1, S2), situated at a distance from one another, on which the end areas of the particular comb elements (K1-K4) rest, the support ribs (S1, S2) extending in parallel to the rotation axis (D) of the circular comb (1).
  6. The circular comb according to one of the preceding claims, characterized in that the spring elements are coil springs (30).
  7. The circular comb according to one of Claims 1 to 5, characterized in that the spring elements are wave springs (31).
  8. A combing machine having 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.

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EP3141638A1 EP3141638A1 (en) 2017-03-15
EP3141638B1 true 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)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CH715430A1 (en) * 2018-10-04 2020-04-15 Graf Cie Ag Round comb for a comber.
CH716329A1 (en) * 2019-06-17 2020-12-30 Graf Cie Ag Round comb for a comber.

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CH706344A2 (en) * 2012-04-10 2013-10-15 Graf & Co Ag Combing for a circular comb of a combing machine.

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FR2787813B1 (en) * 1998-12-29 2001-03-23 Schlumberger Cie N DEVICE FOR SUPPORTING A SUSPENDED BRUSH ON A RECTILINEAR COMBING MACHINE WITH AUTOMATIC COMPENSATION FOR THE WEAR OF SAID BRUSH
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CN2492565Y (en) * 2001-08-09 2002-05-22 山西鸿基实业有限公司 Comber
EP2216555B1 (en) * 2009-02-06 2014-07-23 Fairchild Fasteners Europe - Camloc GmbH Tensioning device
JP5939240B2 (en) * 2013-12-12 2016-06-22 株式会社豊田自動織機 Combing cylinder in comber
CH711515A1 (en) * 2015-09-11 2017-03-15 Graf + Cie Ag <TITLE> Round comb with a fixing element.

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Publication number Priority date Publication date Assignee Title
DE3336876A1 (en) * 1983-10-11 1985-04-25 Staedtler & Uhl, 8540 Schwabach COMBING SEGMENT FOR A KAEMM MACHINE
CH706344A2 (en) * 2012-04-10 2013-10-15 Graf & Co Ag Combing for a circular comb of a combing machine.

Also Published As

Publication number Publication date
BR102016018725A2 (en) 2017-03-21
CN106521728A (en) 2017-03-22
JP2017053079A (en) 2017-03-16
EP3141638A1 (en) 2017-03-15
KR20170031611A (en) 2017-03-21
CH711514A1 (en) 2017-03-15
US20170073847A1 (en) 2017-03-16
US10301749B2 (en) 2019-05-28

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