EP1533404B1 - Combing cylinder with clothing elements - Google Patents

Description

The invention relates to a round comb for a combing machine with a circular-arc carrier, which is rotatably mounted on a shaft and on which are mounted over a portion of its circumference on a body tooth sets.

Such round combs are known from the prior art, wherein the clothing is formed from a plurality of sawtooth strips. Such as B. from the EP 1 083 250 can be seen, there is shown a circular comb, in which on a circular cylindrical support body, a base body is fixed, on the outer surface of sawtooth Ganzstahlgarnituren are attached. The Sägezahngarnituren be individually and side by side in the respective area mounted on the body, or glued to this. This is a very expensive and expensive process and requires the highest precision both in the production of the individual sets as well as when mounting on the body.

Furthermore, from the EP-0 953 662 a method is known, wherein the Sägezahngarnituren be bent prior to treatment, to be glued after the treatment also on the base body.

From the DE-A1-198 29 159 a version is known, wherein juxtaposed sawtooth stamped parts are pushed onto a bolt. The bolt is connected via screws with a comb segment and has a dovetail-shaped receptacle on which the sawtooth stamped parts, which have a corresponding counter-profile in the foot area, are pushed one after the other. This design also requires some effort in the production of the individual sawtooth stampings and when mounting on the comb segment. A similar embodiment, wherein a plurality of toothed segments are pushed one after the other during assembly on a holding body, is also from the DE-A1-3336876 refer to.

Based on the known prior art, the present invention seeks to propose a round comb, in which a simple assembly of Kammgarnituren and their simplified production is ensured.

This object is achieved by proposing that the base body and the toothed fittings are integral and - seen in the direction of rotation of the circular comb - consists of at least two successive clothing elements. As a result, the toothed set is completely machined out of the material of the clothing element, whereby a very accurate production of the tooth tips, or the set is made possible. In addition, the subsequent installation on the circular comb carrier is greatly simplified by the use of such manufactured clothing elements. Likewise, the dismantling of a clothing element is also simplified if it has to be replaced with another one. The surface treatment of the individual teeth of the clothing can be simplified by the use of such a clothing element.

Furthermore, it is proposed that at least in one of the clothing elements, the rows of teeth of the toothed sets run at an angle (a, b) to the direction of rotation. Depending on the intended use of the circular comb, in particular with regard to the material to be processed, it may be advantageous e.g. To increase the combing effect to arrange the rows of teeth at an angle to the direction of rotation. Due to the proposed production of the toothed set from the solid material of the clothing element, the choice of the inclined position of the toothed set can be chosen in a simple manner. In this case, one or more clothing elements can be provided with slanted rows of teeth. It is conceivable to design consecutive clothing elements with obliquely arranged rows of teeth, the inclination of which runs in the opposite direction in each case.

To influence the combing effect is further proposed that - seen in the direction of rotation - the distance between the tooth tips in the rows of teeth of the front clothing element is greater than that of at least one of the subsequent clothing elements. Unless the combing machine has a modified material composition must be processed, it is possible to set up the required combing effect by simply replacing clothing elements.

Likewise, for influencing the combing action, it is proposed that - seen in the direction of rotation - at least one of the clothing elements has a different length than the other clothing elements. It can be provided that - seen counter to the direction of rotation - increases the length of the successive clothing elements.

It is further proposed that the clothing elements are fastened on the circular comb carrier via a connecting means. The connecting means may be an adhesive, with which the clothing elements are mounted on the circular comb carrier. This type of attachment will be chosen when replacement of the clothing elements is not often provided. Depending on the type of adhesive but also the dismantling and subsequent assembly can also be performed easily.

However, a trouble-free assembly and disassembly of the clothing elements is made possible if, as further proposed, the connecting means is at least one mechanical means, for example, each protruding on both longitudinal sides of the respective clothing element in a recess of the circular comb carrier and the clothing element. Thereby, a simple and fast attachment via an additional connecting means, e.g. a bolt, the clothing element ensures on the round carrier, whereby the tolerances in relation to the position of the tooth tips are maintained by the one-piece design.

In order to obtain an even more precise and easier positioning of the clothing elements, it is further proposed that the clothing elements on the opposite side of the rows of teeth are provided with extensions, which form a positive connection with correspondingly formed recesses (or openings) in the circular-arc carrier. So that the clothing elements are fixed in their radial position, it is proposed that fastening elements are provided which the extensions fix in the recesses.

Furthermore, a fastening method is proposed, wherein the clothing elements on the opposite side of the rows of teeth have at least one extending in its longitudinal direction groove, in which a form-fit engages a sliding block, which is fixable via fastening means with the circular comb carrier. Advantageous for exact fixation is when the groove is dovetailed.

As a further attachment possibility of the clothing elements, it is proposed that the circular comb body is provided with flanges over the area of the clothing elements, in each case adjacent to its two outer ends, wherein the side of the flange which bears axially on the relevant end of the clothing element in the radial direction of the circular comb forms a positive fit Forming connection with the correspondingly shaped end of the clothing element. In this embodiment, it is possible the individual clothing elements from one side - contrary to the direction of rotation of the circular comb z. B. to thread against an end stop. Subsequently, the clothing elements can be fixed in their position with respect to the direction of rotation of the circular comb via one or more fastening means.

It is also conceivable, in place of or in addition to the above-described, laterally positive reception, to hold the clothing elements one or more than one form fit in the radial direction via the side opposite the rows of teeth. In this case, for example, one or more dovetail-shaped extensions could be provided between the lateral ends of the clothing elements on their underside, which lies opposite the circular-comb carrier. These extensions would then run in the direction of rotation of the circular comb and protrude into correspondingly shaped recesses of the circular comb carrier. For threading these extensions in the leadership of the circular comb carrier would have to be provided at one point an enlarged recess in the circular comb carrier, which allows a radial displacement between the projections and the recess at this point.

With regard to the clothing elements, it is proposed that the base body and the toothed set are formed in one piece.

Advantageously, when using a clothing element designed in this way for a combing segment, it is proposed that at least two clothing elements are provided which are provided with different geometries of the toothed sets. In each case, the adjacent clothing elements can be provided with different geometries of the toothed fittings in the assembled state.
The term "different geometries" can be understood as the formation of the tooth shape and its angle of attack, as well as the tooth density and the distance between the rows of teeth, for example. However, there are other possibilities of discrimination possible, which are not all listed here.

Fig. 1

eine schematische Seitenansicht eines Rundkammes bekannter Art

Fig. 2

eine schematische Teilansicht einer Kammgarnitur nach der Erfindung

Fig. 3

eine perspektivische Darstellung eines Garniturelementes nach Fig.2

Fig. 3a

eine Ansicht X nach Fig. 3

Fig. 4

eine weitere Ausführung einer Kammgarnitur nach der Erfindung

Fig. 4a

eine Schnittdarstellung A-A nach Fig.4

Fig. 5

eine weitere Ausführung einer Kammgarnitur nach der Erfindung

Fig. 6

eine weitere Ausführung einer Kammgarnitur nach der Erfindung

Fig. 7

eine weitere Ausführung einer Kammgarnitur nach der Erfindung

Fig. 7a

eine Schnittdarstellung B-B nach Fig.7

Fig. 8

eine weitere Ausführung gemäss Schnittdarstellung B-B nach Fig.7

Further advantages of the invention will be shown and described in more detail with reference to subsequent embodiments.
Show it:

Fig. 1

a schematic side view of a circular comb known type

Fig. 2

a schematic partial view of a Kammgarnitur according to the invention

Fig. 3

a perspective view of a clothing element after Fig.2

Fig. 3a

a view X after Fig. 3

Fig. 4

another embodiment of a worsted according to the invention

Fig. 4a

a sectional view AA after Figure 4

Fig. 5

another embodiment of a worsted according to the invention

Fig. 6

another embodiment of a worsted according to the invention

Fig. 7

another embodiment of a worsted according to the invention

Fig. 7a

a sectional view BB after Figure 7

Fig. 8

a further embodiment according to section BB according to Figure 7

In Fig.1 a round comb 1 of known type is shown, wherein on a circular comb shaft 2 via fastening means, not shown in detail, a circular comb carrier 3 is fixed against rotation. The circular comb carrier 3 can be formed in one or more pieces.

On the circular comb carrier 3, a base body 4 is fixed, which extends over part of its circumference. On the main body 4 different trained rows of tooth sets 5a - 5d are fixed, in each case the distance between the tooth tips of subsequent clothing segments, for example, is chosen smaller. The toothed sets 5a to 5d form a combing segment 8 as a whole. The toothed sets are either glued to the base body 4 or fastened by means of corresponding receptacles, as has already been described in the introduction to the prior art.

Fig. 2 shows a partial view of a combing segment 10 according Fig. 1 , The combing segment 10 is composed, as claimed according to the invention, of a plurality of clothing elements 6a-6e fastened one behind the other on a round-beam carrier 3. In this case, the main body GK is integrally formed with the respective toothed set ZG and - divided into several elements according to the number of different tooth sets. These elements are hereinafter referred to as clothing elements. The clothing elements 6a-6e are adhesively bonded to the circular comb carrier in this embodiment. However, it would also be possible in this arrangement to connect the clothing elements with the circular comb carrier 3 by welding or soldering or another, not described in detail, insoluble type. As from the representation of Fig. 2 it can be seen further, the tooth spacing z, or the tooth height h is smaller in each successive clothing element. As a result, the combing work or the combing intensity is influenced.

In Fig. 3 For example, a single clothing element 6b is shown in perspective. It can be seen that the tooth set ZG of the clothing elements consists of individual rows of teeth ZR, which were worked out by means of appropriate manufacturing methods from the full material of the clothing element 6b shown. The clothing element 6b thus consists of a main body GK and a toothed set ZG, which are integrally connected to each other. The production of these rows of teeth ZR can be done, for example, by milling and grinding with subsequent compensation. Depending on the application (as shown), the row of teeth ZR at an angle of 90 ° or at an angle a or an angle b to the longitudinal edge of the clothing element 6b are produced. The bearing surface 12, with which the clothing element rests on the circular-arc carrier, has a radius R, which coincides with the size of the radius RR of the circular-comb carrier 3.

In Fig. 3a will be a partial view of the X FIG. 3 shown, between the individual rows of teeth ZR a tooth tip distance n is provided. This tooth tip distance n is freely selectable depending on the intended use. By the proposed use of such clothing elements, wherein the rows of teeth are machined from the full material, it is possible to produce any desired shape of the rows of teeth with respect to their inclination, tooth height, tooth spacing, etc.

In Fig. 4 another embodiment is shown wherein, as in FIG Fig. 2 , Also several set elements 6a - 6e rest on a circular comb carrier 3. The circular comb carrier 3 is here (see Fig. 4a ) in the region of both ends E of the clothing elements 6a-6e are provided with a flange 15 which at least partially covers the side surfaces F of the clothing elements. In Fig. 4a only one flange 15 of the circular comb carrier 3 is shown. Another flange 15 is also provided in the region of the opposite end E of the clothing element. The clothing elements 6a-6e are each provided with one or more bores 18 extending transversely to the direction of rotation D, which holes 20 of the flange 15 lie opposite each other. In each of these bores 18, 20 protrudes a bolt 22 through which the clothing elements 6a - 6e are fixed with the circular comb carrier 3 in their position. On the in Fig. 4a Not shown opposite side is a correspondingly same connection. The bolt 22 could for example also be replaced by a screw, wherein the hole in the respective clothing elements 6a-6e is, for example, provided with a thread.

In the following Fig. 5 a further attachment possibility of the clothing elements 6a - 6e is shown on the circular comb carrier 3. The clothing elements are each provided on their underside with one or more extensions 24, which protrude into corresponding recesses 25 of the circular comb carrier 3. To fix the clothing elements in the radial direction on the circular comb carrier 3, is a Through hole 26 mounted in the circular comb carrier 3, which is step-shaped and each opens into the recess 25. In this bore 26 is a screw 28 which projects into a threaded hole 29 which is present in the extension 24. By tightening the respective screw 28, the support surface 12 of the respective clothing element 6a - 6e clamped against the support surface of the circular comb carrier 3 and fixed in this position. In any case, two such screw connections are provided in the region of both ends E of the respective clothing elements. However, it is also conceivable to provide additional screw connections between these two ends E.

In Fig. 6 a further embodiment is shown, wherein the clothing elements 6a - 6e are each provided with dovetail grooves 32. In these grooves engages a correspondingly shaped sliding block 34, the other end protrudes into a recess 35 of the circular comb carrier 3. The recess 35 may be formed, for example, as a groove which is mounted transversely to the direction of rotation D in the circular comb carrier 3. In this recess 35 protrudes (also as in Fig. 5 ) a stepped bore 26. In this bore 26, a screw 28 is inserted, which projects into a thread 30 of the respective sliding block 34. When tightening the screw 28 of the sliding block 34 is displaced in the radial direction to the circular comb axis 2, wherein the respective trim element is clamped and fixed against the support surface of the circular comb carrier via the dovetail connection between the sliding block 34 and the groove 32. Also in this case, the screw connection is provided in the region of both ends of the clothing elements, wherein additional screw connections between the two ends can be present.

In the following FIGS. 7 and 7a a further embodiment is shown, wherein also as in the example of Fig. 4 in the region of both ends E, a flange 38 is provided, whose inner side, which faces the end E of the respective clothing element, is provided with a profiled surface 39. The outer surface 40 of the respective clothing element 6a is provided with a corresponding contrasting profiling, so that a positive connection in the radial direction between the circular comb carrier 3 and the clothing element 6a is formed. On the other opposite Side of the clothing element is provided in accordance with a similar positive fit. The two-sided flanges 38 extend over an angle f. At one end of the flanges 38, a fixed stop 42 is mounted on the circular comb carrier 3. At the other end of the flange 38, a releasable stop 43 is provided, which is detectable via screw 44 with the circular comb carrier 3.

To assemble the clothing elements 6a-6e on the circular comb carrier 3, the individual clothing elements are inserted in the stop 43, starting with the clothing element 6e up to the clothing element 6a on the round-beam carrier 3 between the flanges 38 mounted on both sides. The clothing element 6e can be moved so far that it is present at the stop 42. Subsequent clothing elements are inserted in shock at the end of the previously introduced clothing element. As soon as the last clothing element 6a has been inserted, the position of the clothing elements in the direction of rotation D is fixed via the attachment of the stop 43 by means of the screw connections 44. In order to compensate for any tolerances, it is conceivable that the stopper 43 may be of e.g. is provided with slots through which the screw 44 protrude. This makes it possible to move the stop 43 in the circumferential direction of the circular comb carrier, so that the individual clothing elements are pressed against each other in the region of their longitudinal sides.

In Fig. 8 a further embodiment is shown, wherein in addition to the already described lateral form-fitting profiling 39, 40 an additional positive connection between the bearing surface of the respective clothing element 6a is provided on the circular comb carrier 3. In this case, the clothing element on its underside one or more dovetail-shaped extensions 46 which extend in the direction of rotation D of the circular comb. These extensions 46 are inserted into dovetail groove 47 of the circular comb carrier 3 and fix the clothing element in the radial direction. For threading the extension 46, the groove 47 is provided at a location not shown with an outwardly enlarged opening.
It would also be conceivable that for the radial fixation of the respective clothing element several such extensions 46 which distributed over the length of the clothing element are arranged to use, wherein the lateral profiling 39, 40, or the lateral positive connection is dispensed with.

The clothing elements could also be fastened on the round-beam carrier by means of a shrink-fit connection or other mechanical connections; for example, a similar form-fitting connection could be made via the toothing opposite side of the clothing elements 6a-6e with the circular comb carrier 3 or a combination of several mounting options.

With the embodiments shown, one obtains an arrangement wherein the respective combing segment 10 is easy and quick to assemble or disassemble and all possible variations are given for the design of the toothed set.

Claims (18)

1. A circular comb for a combing machine comprising a circular comb carrier (3) which is fastened rotationally fixedly on a shaft (2) and on which successive toothed clothings (5a-5d, ZG) are fastened on a body (4, GK) over a partial area of its periphery, characterised in that the body (GK) is connected in one piece to the respective toothed clothing (ZG) to form a clothing element (6a-6e) and is divided into a plurality of elements according to the number of toothed clothings.
2. The circular comb according to claim 1, characterised in that at least in one of the clothing elements (6a-6e) the rows of teeth (ZR) of the toothed clothings (ZG) run at an angle (a, b) to the direction of rotation (D).
3. The circular comb according to any one of claims 1 to 2, characterised in that, when viewed in the direction of rotation (D), the spacing (z) of the tooth tips in the rows of teeth (ZR) of the toothed clothings (ZG) of the front clothing element (6a) is greater than that of at least one of the following clothing elements (6b-6e).
4. The circular comb according to any one of the preceding claims, characterised in that, when viewed in the direction of rotation (D), at least one of the clothing elements (6a, 6b) has a different length to the other clothing elements.
5. The circular comb according to claim 4, characterised in that, when viewed in the direction opposite to the direction of rotation (D), the length of the successive clothing elements (6a-6e) increases.
6. The circular comb according to any one of claims 1 to 5, characterised in that the clothing elements (6a-6e) are fastened on the circular comb carrier (3) by means of a connecting means (22, 28).
7. The circular comb according to claim 6, characterised in that the connecting means comprises an adhesive, welding, soldering or another type of undetachable connecting means not designated in detail.
8. The circular comb according to claim 6, characterised in that the connecting means comprises at least one mechanical means (22) which projects on both longitudinal sides (F) of the respective clothing element (6a-6e) into a recess (18, 20) of the circular comb carrier (3) and the clothing element.
9. The circular comb according to claim 6, characterised in that on the side opposite to the rows of teeth (ZR), the clothing elements (6a-6e) are provided with continuations (24) with form a form closure with correspondingly configured recesses (25) in the circular comb carrier (3).
10. The circular comb according to claim 9, characterised in that fastening elements (28) are provided which fix the continuations (24) in the recesses (25).
11. The circular comb according to claim 6, characterised in that on the side opposite to the rows of teeth (ZR), the clothing elements (6a-6e) are provided with at least one groove (32) running in the longitudinal direction in which a sliding block (34) engages positively and can be fixed by means of fastening means (28) to the circular comb carrier (3).
12. The circular comb according to claim 11, characterised in that the groove (32) is configured as swallowtail-shaped.
13. The circular comb according to claim 6, characterised in that the circular comb carrier (3) is provided with flanges (38) over the area of the clothing elements (6a-6e) in each case following the two outer ends (E), wherein the side (39) of the flange which abuts axially against the relevant end (40) of the clothing element in the radial direction of the circular comb (1) forms a positive connection with the correspondingly shaped end (40) of the clothing element.
14. The circular comb according to claim 6, characterised in that the clothing elements (6a-6e) on the side (12) opposite to the rows of teeth (ZR) form at least one positive connection with the circular comb carrier (3) in the radial direction.
15. The circular comb according to claim 13, characterised in that additionally in the radial direction, at least one positive connection is provided between the circular comb carrier (3) and the side (12) opposite to the rows of teeth (ZR).
16. The circular comb according to claim 13, characterised in that fastening means (43, 33) are provided for fixing the clothing elements (6a-6e) in the direction of rotation (D).
17. Clothing elements (6a-6e) for forming a comb segment (10) for a circular comb (1) of a combing machine with rows of teeth (ZR) of a toothed clothing (ZG) which are disposed on a body (4, GK) characterised in that the body (GK) and the rows of teeth (ZR) of the toothed clothing (ZG) are formed in one piece.
18. A combing segment (10) for a circular comb (1) of a combing machine with clothing elements (6a-6e) according to claim 17, characterised in that the combing segment (10 is formed from at least two successively arranged clothing elements which are provided with toothed clothings (ZG) having different geometries.

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