EP0395909A1 - Cylinder with working points for a textile machine - Google Patents

Abstract

A cylinder roller having working tips for a textile machine, for example a licker-in, reel or pick-up of a card or cleaning roller of a blow-molding machine, is characterized in that the cylinder roller consists of a basic structure (12) and clothing segments (14) which have the working tips (18) and are mounted thereon. exists, which have a regular geometric shape, which can be fastened to the base structure (12) in a repeating, cylindrical shape arrangement next to one another.

Description

The invention relates to a cylinder roller having working tips for a textile machine, for example a licker-in, reel or take-off of a card or cleaning roller of a blow-molding machine.

Depending on the actual task, such cylindrical rollers are equipped with a spiked set or with a sawtooth set, depending on the intended use, the spikes can be made by wires of different thicknesses and the teeth with different tooth spacing and different sizes. In the case of a barbed set, the wires that form the working tips are usually anchored in a strip of fabric. In the case of a sawtooth set, the teeth are punched out of a corresponding metal strip and then ground in order to specify the tooth shape precisely and to reduce the tooth width in comparison to the base part, which in practical use results in lateral distances between adjacent rows of sawtooths. Both products, i.e. Spiked sets and sawtooth strips are available by the meter and are wound around the circumference of a drum-like basic structure in the manufacture of cylindrical rollers with working tips.

In practical use, these complex sets have to be replaced after a long time due to wear and tear. It also happens that such sets have to be replaced prematurely due to local damage to the working tips. In both cases, the textile machine is dismantled to a large extent in order to install the newly garnished cylinder roller. It is also known to wind up the sawtooth sets on the textile machine itself, as a result of which the effort involved in dismantling is considerably less.

Nevertheless, such an assembly process requires a relatively large amount of work overall.

After the mounting process, it may be necessary to grind the cylinder roller having working tips so that all working tips are at exactly the same radial distance from the axis of rotation of the cylinder roller.

The object of the present invention is to provide a new type of cylindrical roller of the type mentioned at the beginning, which allows repair of damaged areas or the replacement of the entire tip without the complete removal of the cylindrical rollers, and subsequent grinding operations should be avoided as far as possible.

To achieve this object, it is provided according to the invention that the cylinder roller consists of a basic structure and attached to it, the work tips having clothing segments, which have a regular geometric shape, which can be fastened to the basic structure next to one another on the basic structure in a repeating arrangement resulting in the cylindrical shape .

In this way, in the event of damage to the working tips of the cylinder roller, it is possible to replace only one or, if necessary, several clothing segments without having to replace the entire cylinder roller or the entire working tips. With appropriate wear of the entire cylinder roller, it is also possible to replace the clothing segments while the roller is installed in the textile machine, which also reduces the amount of work and the cost of replacing the work tips. By attaching the working tips to clothing segments, it is also easily possible to use these segments to be grinded in such a way that the working tips have the radial nominal distance from the axis of rotation of the cylinder roller or also have the radial distance from the other, already mounted working tips.

In the simplest case, the clothing segments are at least two semi-cylindrical shells. Even with this simple embodiment, the segments can be exchanged individually or together, since the circumferential extent of the segments, which is less than half of the cylinder roller, enables the segments to be pulled off in a radial direction, which is mostly due to the dismantling of the customary casing of the machine and rotation of the roller in a favorable angular position is possible. As a result, it is usually not necessary to expand the end of the cylinder roller mounting.

An even number of semi-cylindrical shells is preferably provided, which can be attached in pairs in two or more rows next to one another on the basic structure. Such an embodiment is particularly preferred, in which, viewed in the circumferential direction of the roller, each row is arranged offset with respect to the adjacent rows. In this way, the grooves which are generally difficult to avoid at the abutting edges between adjacent segments are distributed over the circumference of the cylinder roller in such a way that they do not interfere with the operation, or only to an insignificant extent. If there were only two semi-cylindrical shells or a plurality of shells oriented in the circumferential direction, empty spaces would extend between adjacent shells that would extend over the entire width of the cylinder roller, which are probably undesirable.

The semi-cylindrical design of the segments is not necessarily an optimum; Particularly in the case of large cylindrical rollers, for example in the case of a drum, arrangements according to the invention in which the clothing segments are preferred are three or more partially cylindrical segments. As a result, the circumferential extent of the individual segments is smaller, which simplifies their handling during installation and removal. Also in this embodiment with partially cylindrical segments which extend over less than half of the circumference of the cylinder roller, an arrangement is preferred where the clothing segments are arranged in a plurality of rows, each offset from adjacent rows in the circumferential direction of the roller.

Another possibility, which has the particular advantage that the abutting areas between adjacent segments can have a shorter linear extension, is characterized in that the segments have a cylindrically curved, polygonal shape in plan view, for example a triangular, hexagonal or diamond-shaped shape, whereby if necessary, partial segments can be provided on the end edges of the cylinder roller.

In order to fasten the segments to the basic structure, a particularly preferred embodiment of the invention provides that the basic structure is a drum having at least one end face of an opening, and that the segments can be fastened to the drum by fastening elements accessible from the inside of the drum. In the simplest form, these fasteners can consist of screws that engage in the corresponding threads in the segments. It would also be possible to fasten the segments to the drum from the outside, the fastening screws then engaging in threaded holes in the lateral surface of the drum. However, such an arrangement has the disadvantage that working tips cannot easily be attached in the area of the screw heads, so that empty spaces are created here which are not absolutely desirable. According to the invention, however, various other options are provided for fastening the Segments and the basic structure. A particularly preferred embodiment is characterized in that the segments are removably held on the base structure by means of grooves extending in the circumferential direction and / or in the transverse direction in the base structure or in the segments, which are in positive engagement with correspondingly shaped ribs on the other part.

For example, the segments on their radially inward-facing side opposite the base structure can have dovetail-like grooves or projections which interact with complementary projections or grooves of the base structure. It is simplest in such an arrangement if the dovetail-like grooves are provided in the transverse direction of the basic structure, since the clothing segments can then be easily inserted from one end face of the basic structure. However, it is also possible to provide grooves and protrusions extending in the circumferential direction of the basic structure, although here the grooves or protrusions have to be interrupted in places in order to enable the segments to be inserted. It is also possible according to the invention that the segments have bores extending in the transverse direction of the roller and can be fastened to the basic structure by means of rods extending through these bores.

In the case of a spiked clothing, which is formed by a wire-pointed clothing with support fabric, the support fabric is preferably glued to the clothing segments, the fabric preferably having the shape of the segments in plan view. With this design, areas close to the tips on the abutting edges between the individual clothing segments can largely be avoided. The spike set is thus constructed similarly to the spike set of a revolving lid.

As an alternative to this, the working tips can be formed by a saw tooth set, which are held in a form-fitting manner on the clothing segments in the form of strips curved in the circumferential direction of the cylinder roller. The form-fitting mounting can take place, for example, through lip-like projections of the segments which overlap the ends of the strips, these lip-like projections being plastically deformed in a clamping manner around the ends of the strips or into grooves of these strips intended for this purpose.

There is also the possibility of providing the sawtooth strips on their sides facing the segments with dovetail-like grooves or projections which cooperate with corresponding projections or grooves on the outer surface of the segments and bring about a form-fitting attachment of the strips to the segments. It is also quite conceivable to provide holes in the sawtooth strips at regular intervals and then to fasten them to the segments by means of wires extending in the direction of the cylinder roller. Such bores or dovetail-like grooves or projections can be punched out at the same time during the punching of the working tips, so that the manufacturing outlay hardly increases.

Although in some cases the segments can be replaced by radial removal from the basic structure, the segments are preferably provided such that they can be removed from an end face of the basic structure. Depending on the design of the segments, this is possible in many cases without having to remove the mounting of the cylinder roller, so that the basic orientation of the cylinder roller to the textile machine is not impaired. In this way, it is usually also possible to avoid having to disassemble the drive device for the cylinder roller.

Finally, it must be mentioned that it would be possible in principle to provide the segments in the form of a ring, the individual rings, for example, being able to be pushed from one end face onto a drum-like basic structure and being attached to it by axial clamping. It is true that such a design requires further disassembly of the textile machine on the end face of the cylinder roller than the other designs. In this way, however, one would be able to largely avoid empty spaces on the abutting sides between the individual segments.

Further preferred embodiments can be found in the subclaims.

• Fig. 1 eine perspektivische Darstellung einer ersten Ausführung des Erfindungsgedankens mit lediglich zwei Halbschalen,
• Fig. 2 eine weitere Ausführung des Erfindungsgedankens mit mehreren Halbschalen,
• Fig. 3 eine Ausführung ähnlich der der Fig. 2, jedoch mit Teilschalen, die weniger als die Hälfte des Umfangs der Zylinderwalzen einnehmen,
• Fig. 4 eine perspektivische Darstellung einer mehrere Längsstreifen aufweisenden Ausführung des Erfindungsgedankens,
• Fig. 5 eine perspektivische Darstellung dreier Varianten des Erfindungsgedankens mit rautenförmigen, dreieckigen und sechseckigen Garnitursegmenten,
• Fig. 6 eine Stirnansicht eines erfindungsgemäßen Garnitursegmentes mit Drahtspitzen,
• Fig. 7 eine Stirnansicht eines erfindungsgemäßen Garnitursegmentes mit Sägezahnstreifen, die am Segment mittels lippenartiger Vorsprünge befestigt sind, wobei auch die Befestigung an der Grundstruktur gezeigt ist,
• Fig. 8 eine weitere schematische Darstellung eines erfindungsgemäßen Garnitursegmentes, bei dem einzelne Sägezahnstreifen mittels schwalbenschwanzartigen Nuten und Vorsprüngen formschlüssig an den Garnitursegmenten gehalten werden, wobei auch hier die Befestigung an der trommelartigen Grundstruktur gezeigt ist,
• Fig. 9 eine weitere Ausführungsform eines erfindungsgemäßen Garnitursegmentes, bei der Sägezahnstreifen, die selbst die Segmente bilden, direkt an der Trommel befestigbar sind,
• Fig. 10 eine perspektivische Darstellung einer Stirnansicht einer Grundstruktur, an der Garnitursegmente mittels schwalbenschwanzartigen Führungen befestigbar sind,
• Fig. 11 eine perspektivische Darstellung einer alternativen Grundstruktur, bei der Garnitursegmente mit in Umfangsrichtung der Grundstruktur verlaufende schwalbenschwanzartige Führungen befestigbar sind.
• Fig. 12 eine schematische Darstellung einer alternativen Möglichkeit die Garnitursegmente an der Grundstruktur zu befestigen, wobei der Darstellung halber die gezeigten Teile des Garnitursegmentes und der Grundstruktur geradelinig statt gekrümmt gezeichnet sind,
• Fig. 13 eine schematische Darstellung entsprechend der Fig. 12, jedoch von einer weiteren Alternative,
• Fig. 14 eine schematische Darstellung entsprechend der Fig. 12, jedoch von einer noch weiteren Alternative, und
• Fig. 15 eine stark vereinfachte perspektivische Darstellung einer Zylinderwalze mit in Umfangsrichtung geneigten Reihen von Arbeitsspitzen.

An example of the invention is explained in more detail below with reference to the drawing, which shows:

• 1 is a perspective view of a first embodiment of the inventive concept with only two half-shells,
• 2 shows a further embodiment of the inventive concept with several half-shells,
• 3 shows an embodiment similar to that of FIG. 2, but with partial shells which occupy less than half the circumference of the cylinder rollers,
• 4 shows a perspective illustration of an embodiment of the inventive concept having a plurality of longitudinal strips,
• 5 shows a perspective illustration of three variants of the inventive concept with diamond-shaped, triangular and hexagonal clothing segments,
• 6 is an end view of a clothing segment according to the invention with wire tips,
• 7 shows an end view of a clothing segment according to the invention with sawtooth strips which are fastened to the segment by means of lip-like projections, the fastening to the basic structure also being shown,
• 8 shows a further schematic illustration of a clothing segment according to the invention, in which individual sawtooth strips are held in a form-fitting manner on the clothing segments by means of dovetail-like grooves and projections, the attachment to the drum-like basic structure also being shown here,
• 9 shows a further embodiment of a clothing segment according to the invention, in which sawtooth strips, which themselves form the segments, can be attached directly to the drum,
• 10 is a perspective view of an end view of a basic structure to which clothing segments can be fastened by means of dovetail guides,
• 11 shows a perspective illustration of an alternative basic structure in which clothing segments can be fastened with dovetail-like guides running in the circumferential direction of the basic structure.
• Fig. 12 is a schematic representation of an alternative way of attaching the clothing segments to the basic structure, the representation the parts of the clothing segment and the basic structure shown are drawn straight instead of curved,
• 13 is a schematic representation corresponding to FIG. 12, but of a further alternative,
• FIG. 14 is a schematic illustration corresponding to FIG. 12, but of yet another alternative, and
• 15 is a greatly simplified perspective illustration of a cylindrical roller with rows of working tips that are inclined in the circumferential direction.

1 first shows a cylinder roller 10, for example a card reader, which consists of a drum-like basic structure 12 and two half-shells 14. Each half-shell 14 extends over an angle of 180 ° around the axis of rotation 16 of the roller. The half-shells carry on their surface a needle set of wires 18, the entire surface of the two half-shells being covered with these wires, although only a partial area is drawn with needles in FIG. 1 in order not to complicate the drawing unnecessarily.

The abutting edges between the two half-shells are marked with 20. With this wire spike design it is also possible to guide the needles very close to the abutting edges 20, so that there is no particular disturbance of the surface covered with needles in the region of the abutting edges 20.

1 also shows how the drum-like basic structure 12 is fastened by means of radially extending arms 22 to a hub part 24, which is necessary for the storage of the cylinder roller in the textile machine. These Storage is not shown here since it is not part of the present invention.

As will be explained in more detail later in connection with FIG. 6, the wire needles 18 are firmly anchored in a fabric, which are glued to fixed metallic segments. The segments are fastened to the drum 12 by means of screws which are inserted from the inside of the drum and which engage in the threads provided in the segments, as will be explained in more detail later, with reference to FIG. 6. The head of a screw is only for the sake of illustration 26 shown in Fig. 1, it being seen that this head is accessible through the opening 28 between the arms 22.

The working tips of the half-shells 14 of the embodiment according to FIG. 1 do not have to consist of wire needles, they can also consist of sawtooth segments, as will be explained later in connection with FIG. 7.

In this case, it is easier for manufacturing reasons to provide the half-shells with a somewhat smaller axial length. FIG. 2 shows such an embodiment, in which four pairs of half shells, identified here by 14.1, are arranged next to one another. For the sake of illustration, the basic structure, i.e. the drum 12 in Fig. 2 omitted. The abutting edges 20.1 between the half-shell pairs are offset in each row with respect to the adjacent rows, so that there are no axially continuous sawtooth-free areas on the abutting edges 20.1.

The displacement of the individual half-shells in the individual rows can be made so that the abutting edges in one row are offset against the abutting edges in all other rows. However, this is not shown in FIG. 2.

The present invention is by no means limited to two half-shells. FIG. 3 shows an arrangement with a total of 40 shell segments, which are arranged in four rows of 10 segments each, each segment 14.2 having an angular extent of 36 °. Here too, the abutting edges 20.2 are offset from the rows adjacent to the abutting edges. Furthermore, the basic structure is omitted here for the sake of illustration.

4 in turn shows a segment arrangement with 16 strip segments 14.3, each of which extends over the entire length of the cylinder roller. Such an arrangement is suitable for a needle set with wire needles which are embedded and held in a fabric, these fabrics being glued to the latter in strips which have the shape of the segments 14.3, which is only indicated in sections at 30 in FIG. 4 . The strips comprising the needle set can be designed in the manner customary for the needle sets of revolving covers.

5 shows three further alternative segment types, which are designed here as mosaic stones. In the first case, segments 14.4 are diamond-shaped segments. Instead, the segments can have a triangular shape 14.5 or a hexagonal shape 14.6, with any polygonal shape finally being possible, provided the segments can completely cover an area. With some shapes of the mosaic stones, half segments have to be provided in order to achieve a continuous covering of the basic structure also at the front edges of the cylinder roller, as indicated for example in 14.7.

FIG. 6 now shows in the front view how a segment, for example a segment such as 14.2 of FIG. 3, can be attached to the drum-like surface of the basic structure 12. As can be seen, the segment 14.2 has a curved inner surface 32 which has exactly the same curvature as the outer surface 34 of the drum. Four threaded bores 36 are provided in segment 14.2, only two of which can be seen in FIG. 6. The segments can be located in the interior of the drum-like basic structure 12 by means of the screws 26 of the drive heads and can be tightened. The segments can also have a nose 38 or a depression 40 on their respective peripheral edges, so that each segment 14.2 is held in a form-fitting manner with the adjacent segment 14.2 on the peripheral edges. With a suitable shape, the lugs and depressions can be designed so that it is still possible to detach individual segments from the drum, for example by first loosening two adjacent segments and tightening them again in pairs by means of the screws 26 on the drum surface.

6 shows in detail how the wire tips 18 protrude from a tissue 30, the tissue 30 frequently being glued to the curved outer surface of the segment 14.2. In this way, there are no circumferential grooves on the abutting edges 20.2, since the barbed wires can be guided at least essentially up to the edge of the strips.

Fig. 7 shows an embodiment similar to Fig. 6, in which the segments 14.8 are also tightened by means of screws 26 on the drum surface. For the sake of brevity, parts in FIG. 7 which correspond to parts in FIG. 6 are identified by the same reference numbers and are not described separately. 7 is equipped with sawtooth strips, these sawtooth strips one Have curvature corresponding to the curvature of the outer surface of the segment 14.8 and are held at their end edges by means of inwardly deformed edge parts 42 of the segments 14.8. Although not shown in FIG. 7, a plurality of sawtooth strips are placed next to one another on the segment, each strip being able to have a wider shoulder area 44 in a manner known per se so that the working tips 46 are spaced apart from one another. At the abutting edge, for example 20.2 between the two segments, there is a small distance with the width of a tooth.

8 shows a further possibility of attaching the sawtooth strips 41 to the segments 14.9. In this embodiment, too, parts that are already known are identified by the same reference numerals as before and are not specifically described. 8 that the segment 14.9 has dovetail-like guides 48 on its outside which engage in complementary dovetail-like openings 50 in the sawtooth strip 41 and thus fix the sawtooth strip in a form-fitting manner on the segment. This design has the particular advantage that individual sawtooth strips on individual segments are interchangeable.

9, the sawtooth strips themselves form the segments. For this purpose, the radial dimensions of these are designed to be somewhat deeper than previously and provided with through holes 52. The matching drum structure is designed like a bird cage, the individual cage rods extending through the holes 52. The exchange of the sawtooth strips is possible here by pulling out the bars in certain areas and removing the corresponding sawtooth strips. As an alternative to this, the basic structure can take the form of a continuous drum with a multiplicity of radially outwardly extending flanges have, wherein grooves are provided between the flanges into which the sawtooth strips are inserted. The flanges also have bores corresponding to the bores 52, so that the bars pass through both the sawtooth strips and the flanges. Such a type of attachment is particularly suitable for a cylinder roller of a blowroom machine, where a relatively coarse tooth shape is used.

10 shows a possibility of attaching the individual segments 14.10 to the drum-like basic structure 12.1 by means of dovetail guides 54 which extend in the transverse direction of the roller and which engage in complementarily designed dovetail grooves 56 in the inner side of the segments 14.10. For the sake of illustration, the work peaks are omitted here. However, they can be designed as wire tips or as saw tooth tips and can be attached to the segments 14.10, for example, according to the options described above. 10 also shows a flange 58 on the rear end edge of the cylinder roller, which serves as a stop for the segments 14.10 inserted in the axial direction. In order to show this flange 58, the other segments in FIG. 10 have broken away.

10 also shows a further alternative, namely the fastening of the segments 14.10 on the base structure 10 by means of continuous strips 57, the strips being able to have the cross-sectional shape of two oppositely directed and fastened dovetail guides. In this case, corresponding dovetail grooves must be provided both in the segments and in the basic structure. The strips can be inserted laterally in the form of prefabricated strips, but they can also be created by covering the corresponding spaces with lead, Pouring resin or plastic, after the solidification or hardening of the material, the attachment between the clothing segments and the basic structure is finished.

The dovetail-like guides do not necessarily have to run in the transverse direction of the roller, but, as shown in FIG. 11, they can extend in the circumferential direction. The embodiment according to FIG. 11 would be suitable for a segment shape according to FIG. 4, i.e. Segments that have a longitudinal extension corresponding to the length of the cylinder roller, but are relatively narrow in width. In order to enable the introduction of the segments, the drum has at least once a number of locations 60 where the circumferentially extending dovetail guides 54.1 are interrupted. The individual strips can be inserted at these points and then moved in the circumferential direction of the drum. The areas 60 are thus to be regarded as filling slots. When the last strips are inserted, all strips are shifted back by half a strip width, so that the two strips last inserted are also carried by the dovetail guides 54.1. Secure fastening of the strips last used can then be achieved by other mechanical means.

Another possibility would be to divide the circumferentially extending dovetail guides 54.1 into different narrow strips, as indicated for example at 54.2. The segments to be used will then have a corresponding division of the dovetail-like depressions so that they can be inserted radially. After the radial insertion, the strips are offset by half their width so that they are held in a form-fitting manner.

The embodiments described above represent only a part of the total possibilities available to implement the invention in practice.

Further possibilities are shown in FIGS. 12 to 15.

In FIG. 12, the clothing segments, which can be designed, for example, in accordance with the segments 14.2 of FIG. 3, are fastened to the base structure 12 by means of continuous screws 26.1. The screws 26.1 penetrate radial bores 60 and 62 which are aligned with one another and are formed in the clothing segments 14.3 or in the basic structure 12. The bores 60 are designed as stepped bores so that the head of the screw 26.1 can be sunk below the radially outer surface of the clothing segment 14.3. The threaded part of the screw 26.1 engages in the bore 26 of the basic structure 12 which is designed as a threaded bore.

13 shows a similar construction, but with a slightly different fastening device 26.2. Here, the fastening device 26.2 has at its lower end a claw 64 which is connected to the head of the screw 26.2 by means of a leg 66. The claw is designed so that it can be inserted through the aligned bores 60 and 62 and then by turning the head of the screw, for example by means of the screwdriver slot 68, reaches behind the radially inner surface of the base structure 12 and is anchored here. In order to facilitate this, the claw 64 can have a surface 64.1 designed as a ramp, which also enables the screw 26.2 to be tightened.

14, an expansion dowel 70 is used to implement the attachment.

After the segment 14.3 has been attached to the base structure 12, the dowel 70 is inserted through the mutually aligned bores 60 and 62.1, the conical shape of the bore 62.1 preventing the dowel 70 inserted from the outside from moving too far inwards. Then the screw 26.3 is inserted through the dowel and tightened, whereby the nut 72 cooperating with the screw 26.3 ensures the expansion of the dowel 70 and therefore the anchoring of the clothing segment 14.3 on the base structure 12. The use of such a nut 72 is not absolutely necessary, for example the screw 26.3 could cause the dowel to spread sufficiently to achieve anchoring without a nut.

In all examples 12 to 14, the heads of the screws can, if desired, be covered with lids, also with lids which themselves carry needle sets. These covers could, for example, be glued to the screw heads or provided with screws which can be screwed into corresponding threaded holes in the screws 26.1 or 26.2 or 26.3, i.e. about the type of cover caps for bathroom mirrors.

Finally, FIG. 15 shows that the rows of working tips can form an angle from one another in the circumferential direction of the clothing segments which follow the cylinder segments. This has the particular advantage that the "lanes" between the rows of work tips are not straight and aligned in the circumferential direction of the cylinder roller, but form a zigzag path, whereby individual fibers are repeatedly brought into the work area of the work tips, so that overall a high degree of efficiency can be achieved.

Claims (26)

1. cylinder tip having working tips for a textile machine, for example licker-in, reel or take-off of a card or cleaning roller of a blow-molding machine, characterized in that the cylinder roller consists of a basic structure (12) and attached to it, the working tips (18) having clothing segments (14) , which have a regular geometric shape, which can be fastened to the base structure (12) in a repeating arrangement which results in the cylindrical shape, lying next to one another. 2. Working tip cylinder roll according to claim 1, characterized in that the clothing segments are at least two semi-cylindrical shells (14, 14.1). 3. cylinder tip having working tips according to claim 2, characterized in that an even number of semi-cylindrical shells (14.1) is provided, which can be attached in pairs in two or more rows next to each other on the basic structure. 4. Working tip cylinder roller according to claim 3, characterized in that seen in the circumferential direction of the roller, each row is arranged offset from the adjacent rows. 5. cylinder tips having working tips according to claim 1, characterized in that the clothing segments consist of three or more partially cylindrical segments (14.2, 14.3). 6. cylinder tips having working tips according to claim 5, characterized in that the clothing segments (14.3) are arranged in a plurality of rows, each offset from adjacent rows in the circumferential direction of the rolls. 7. cylinder tip having working tips according to claim 1, characterized in that the segments (14.4, 14.5, 14.6) have a cylindrically curved, polygonal shape in plan view, for example a triangular, hexagonal or diamond-shaped shape, with partial segments at the front edges of the cylinder roller (10) are predictable. 8. cylinder tip having working tips according to one of the preceding claims, characterized in that the basic structure (12) has an opening on at least one end face having a drum and that the segments (14, 14.2, 14.8) can be fastened to the drum by fastening elements (26) accessible from the inside. 9. cylinder tip having working tips according to claim 8, characterized in that the fastening elements consist of screws (26) which engage in corresponding threads (36) in the segments. 10. A cylindrical roller having working tips according to one of claims 1 to 7, characterized in that the segments can be removed from the basic structure by means of grooves (56) extending in the circumferential direction and / or in the transverse direction in the basic structure (12) or in the segments (14.10) are held, which with correspondingly shaped ribs (54, 54.1, 54.2) are in positive engagement on the other part. 11. A cylindrical roller having working tips, characterized in that the segments (41) have bores (52) extending in the transverse direction of the roller and can be fastened to the basic structure by means of rods extending through these bores. 12. Work tip cylinder roll according to one of the preceding claims, characterized in that a wire tips or needle tips (18) having clothing with support fabric (30) is provided, which is glued to the clothing segments (14.2) and corresponds to the shape of the segments. 13. Cylinder roller having working tips according to one of claims 1 to 11, characterized in that the working tips (46) by a saw tooth set or needle set are formed, which are held in the form of circumferentially curved strips (41) on the clothing segments (14.8, 14.9) in a form-fitting manner. 14. A cylindrical roller having working tips according to claim 13, characterized in that the form-fitting mounting is carried out by rib-like projections (42) of the segments (14.8) spanning the ends of the strips. 15. A cylindrical roller having working tips according to claim 15, characterized in that the rib-like projections (42) are plastically deformed in a clamping manner around the ends of the strips or in grooves intended therefor. 16. Working tip cylinder roll according to one of claims 1 to 11, characterized in that the sawtooth strips (41) on their segments (14.9) facing sides have dovetail grooves (50) or projections with corresponding projections (48) or grooves Work together on the outer surface of the segments and ensure that the strips are positively attached to the segments. 17. Cylinder roller having working tips according to one of the preceding claims, characterized in that the segments can be removed from an end face of the basic structure. 18. Cylindrical roller having working tips according to claim 17, characterized in that the segments are rings. 19. Cylinder roller having working tips according to claim 1, characterized in that the clothing segments (14.3) have stepped bores (60) which extend radially to the axis of rotation of the cylinder roller and serve to receive fastening devices (26.1, 26.2, 26.3) inserted radially from the outside. which extend through corresponding radial bores in the basic structure, the heads of the fastening devices lying radially below the working tips and preferably countersunk below the radially outer surface of the clothing segments carrying the working tips. 20. Cylinder roller having working tips according to claim 19, characterized in that the fastening devices are screw bolts (26.1). 21. Cylindrical roller having working tips according to claim 19, characterized in that the fastening devices are rotary fastenings, each rotary fastener being insertable by the associated radial bore (60) of the clothing segment and the radial bore (62) of the basic structure aligned therewith and by a rotary movement the basic structure (12) engaging behind claw (64) and a leg (66) connecting the claw to the rotatable head. 22. Cylindrical roller having working tips according to claim 19, characterized in that the fastening devices each comprise an expansion plug (70) which can be used through the associated radial bore of the clothing segment and the radial bore of the basic structure which is aligned therewith, and a screw which causes the expansion of the plug (26.3), the screw (26.3) possibly working together with a nut (72) causing the expansion of the pin. 23. Cylinder roller having working tips according to one of the preceding claims 19 to 22, characterized in that the heads of the fastening devices are covered by covers which can be glued or screwed onto the heads. 24. Cylinder roller having working tips according to claim 1, characterized in that the clothing segments (14.10) on the basic structure (12.1) by means of strips (57) are positively attached. 25. Work tip having cylindrical roller according to claim 24, characterized in that the strips are cast and consist, for example, of lead, resin or plastic, preferably filling the strips (57) cast in place only after the attachment of the clothing segments (14.10) , which are partly in the clothing segments (14.10) and partly in the basic structure (12.1) and are undercut in both parts, whereby, for example, the strips can have the cross-sectional shape of two oppositely directed and fastened dovetail guides. 26. Cylinder roller having working tips according to one of the preceding claims, characterized in that the rows of working tips form an angle in the circumferential direction from one another in the circumferential direction of the following clothing segments (14.11).

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