A carding machine for producing nonwoven fabric from fiber material.

Abstract

The invention relates to a carding machine (1) for the production of nonwoven fabric from fiber material, which comprises at least one drum (2a; 2b) arranged to be mounted around a rotating axis, side plates arranged on either side of the drum (2a; 2b) and attached to a frame (3), and at least one coating device (V1; V2) arranged laterally to the drum (2a; 2b). The coating device (V1; V2) is attached to a dedicated side panel by means of a fixing device (B) made of metal, where the fixing device (B) is circular and structured to extend along at least one ring-shaped partial section around the rotating axis of the drum (2a; 2b). The coating device (V1; V2) consists of multiple surface segments arranged in a ring shape around the rotating axis (A) of the drum (2a; 2b).

Description

[0001] The invention relates to a carding machine for the production of nonwoven fabric from fibrous material, comprising at least one drum mounted about a pivot axis, side plates arranged on both sides of the drum and fixedly mounted on a frame, and at least one casing assembly arranged laterally to the drum. The invention further relates to such a carding machine, which also includes a sliding cover slidably guided on an upper edge of the casing assembly or adjacent thereto.

[0002] According to the current state of the art in textile technology, it is known to attach cladding elements in the form of inner linings to a side plate located on the end face of a drum or tambour on a spinning preparation machine (e.g., a carding machine) for the treatment of cotton, synthetic fibers, or the like. These linings can be made of rigid plastic, wood, steel, or aluminum. The conventional approach to attaching such inner linings to the machine's side plate involves the use of numerous individual parts, brackets, and fastening elements. This has the disadvantage that such an attachment is complex and costly to assemble in practice.

[0003] In DE 1139413 A1 a split side casing of a drum on a carding machine is disclosed.

[0004] CN206109626 U shows a one-piece side shield of a drum attached to a frame.

[0005] EP 1686204 B1 discloses a casing for a carding machine in which individual segments are designed to slide into one another. US 2004 / 0065046 discloses sliding side panels of a carding machine casing with a hinged front panel.

[0006] Accordingly, the invention is based on the objective of further developing a spinning preparation machine or nonwoven fabric production machine in such a way that an inexpensive and easy-to-handle cover or casing is created adjacent to the end faces of an associated drum in lateral areas thereof and / or above it.

[0007] The invention solves the stated problem by providing a carding machine with the features specified in claim 1. Advantageous embodiments of the invention are defined in the dependent claims.

[0008] A carding machine according to the present invention serves for the production of nonwoven fabric from fibrous material and comprises at least one drum mounted about a pivot axis. Furthermore, this carding machine comprises side panels arranged on both sides of the drum and fixedly mounted on a frame, and at least one sheathing device arranged laterally to the drum.

[0009] The invention includes the technical teaching that the casing assembly is attached to a side panel by means of a fastening device. The fastening device is designed in a ring shape such that it extends at least along an annular section around the axis of rotation of the drum. The fastening device preferably consists of a metal, for example, aluminum, stainless steel, or steel.

[0010] According to a further embodiment, the invention includes the technical teaching that the formwork device consists of a plurality of surface segments arranged in a ring around the axis of rotation of the drum.

[0011] The invention is based on the fundamental insight that, due to the ring-shaped design of the fastening device, which extends at least along an annular section around the axis of rotation of a drum, it is possible to create a housing system that is easily and flexibly demountable, with a reduction in the number of associated individual parts. The fastening device can be cast onto the side panel or attached to the side panel as a separate one- or multi-part component. In this context, the design of a housing system consisting of a plurality of surface segments arranged in a ring around the axis of rotation of the drum also offers the advantage of simplified assembly, particularly when these surface segments are each adapted to the adjacent ring-shaped fastening device.

[0012] Furthermore, the design of the casing system with multiple surface segments offers the advantage that only a specific segment needs to be dismantled, for example, in case of damage or for maintenance purposes. Compared to conventional casing systems, which typically have larger dimensions or surfaces, this simplifies handling during carding maintenance or repair of a defective casing segment. When dismantling the carding system, where the rollers (drum, transfer, or take-up rollers) are moved along with their associated frame, the casing element(s) can be moved without complete disassembly. Only the casing element whose roller or frame requires maintenance then needs to be removed.

[0013] In an advantageous embodiment of the invention, at least one recess can be formed on a radially outer edge region of the fastening device, the dimensions of which are adapted to an adjacent machine element of the carding machine. In this way, the fastening device does not obstruct such an adjacent machine element, and the machine element can, if necessary, extend at least partially through this recess. As a result, the fastening device provides a space-saving connection of a casing assembly to a side panel of the carding machine.

[0014] It is advantageous for a casing device to be connected to a specific fastening direction by means of countersunk screws. The flat heads of these countersunk screws offer the advantage that adjacent machine parts of the carding machine cannot come into contact with them, thus preventing any operational disruption in the production of nonwoven fabric from fibrous material. Furthermore, it is advantageous that excessive fibrous material cannot be deposited or accumulated on these flat heads of the countersunk screws.

[0015] According to an advantageous embodiment of the invention, the mounting of the ring-shaped fastening device on a side plate of the drum can be simplified or optimized by forming this fastening device from a plurality of ring segments, each of which is attached to a side plate. Such mounting of these ring segments on a side plate can be carried out either from an end face of a drum, namely in line with its axis of rotation, or alternatively from a direction that lies in a plane of the side plate.

[0016] According to an advantageous embodiment of the invention, the carding machine has a plurality of drums, each mounted around a pivot axis, with each drum having a housing device on one side, which is connected to a side plate of the respective drum by means of the ring-shaped fastening device. This has the advantage that the carding machine, even if it has several drums, is effectively shielded or encapsulated from the environment in order to effectively prevent, on the one hand, the ingress of contaminants from the outside and, on the other hand, the "ejection" of fiber material from the machine area into the surroundings of the carding machine.

[0017] In an advantageous embodiment of the invention, it can be provided that adjacent formwork devices and / or their surface segments are connected to one another along their edge regions. This achieves the advantage of both improved overall stability of a plurality of surface segments of a formwork device and / or a plurality of such formwork devices, each assigned to a drum of the drum and adjacent to one another, as well as improved sealing of the drums against the environment.

[0018] The connection of adjacent surface segments of a formwork system, or of surface segments from different formwork systems that are adjacent to one another, can be achieved according to the invention by means of a connecting strip. On opposite sides of this strip, grooved pockets are formed into which the edge regions of the adjacent surface segments of a formwork system can be inserted. The fit between the grooved pockets and the surface segments can have a suitable interference dimension to ensure that the surface segments are held securely within the grooved pockets. However, this clamping of the edge regions of the surface segments within the grooved pockets is only intended up to the occurrence of a predetermined maximum force, so that if this maximum force is exceeded, controlled slippage or...It is possible to move the edge area of ​​a surface segment within the groove of the connecting strip. In this way, stresses in relation to a formwork system and its surface segments, and / or in relation to several adjacent formwork systems, can be effectively prevented.

[0019] In an advantageous embodiment of the invention, a compensating point can be provided between the respective surface segments of the casing devices that abut each other at the end faces of the drums. This ensures that, in particular, length compensation between the adjacent casing devices is possible in the event of temperature changes, so that during operation of the carding machine according to the invention, no stresses or even fractures occur in the casing devices and their surface segments when such temperature changes occur.

[0020] Another embodiment of the casing according to the invention comprises a sliding cover which is slidably guided on or adjacent to the upper edge of the casing. This embodiment of the invention includes the technical teaching that a sliding system is provided between the upper edge of the casing and the sliding cover, comprising a clamping strip and a sliding strip, wherein the clamping strip is attached to the upper edge of the casing, and wherein the sliding strip is connected to the sliding cover and is in sliding contact with the clamping strip located below it.

[0021] In an advantageous embodiment of the invention, the clamping strip can have an upwardly directed guide rib, wherein a guide groove is formed in the sliding strip on one side opposite the clamping strip, with which the guide rib of the clamping strip is in sliding engagement. In this way, a translational relative movement between a casing device, to whose upper edge the clamping strip is attached, is achieved with simple means.

[0022] Further measures improving the invention are described in more detail below together with a description of a preferred embodiment of the invention with reference to the figures.

[0023] They show: Fig. 1 a schematic side view of a carding machine according to the invention, Fig. 2 a schematic side view of the carding machine according to the invention, wherein the associated drums and the frame devices located between them are shown separately for the sake of simplicity, Fig. 3 a schematic side view of formwork devices with their respective associated surface segments, which are part of the carding machine of Fig. 1 Fig. 4 shows a schematic side view of the side plates of the drums of the carding machines, including the worker and turning rollers. Fig. 1 , Fig. 5 a perspective view of a side panel of the Krempel of Fig. 1 and a surface segment of a formwork device attached to it by means of a fastening device, Fig. 6 a sectional view of the representation of Fig. 5 , Fig. 7 a perspective view of a clamping plate, for connecting adjacent surface segments of separate formwork devices of the Krempel of Fig.1 , Fig. 8 a cross-sectional view of the clamping plate of Fig. 7 Fig. 9 shows a partial perspective view of a connecting strip for joining adjacent surface segments of a formwork device of the Krempel. Fig. 1 , Fig. 10 a partial perspective view of the connecting strip of Fig. 9 , if in their grooved pockets each surface segments of a formwork device the stuffing of Fig. 1 are inserted, Fig. 11 a cross-sectional view not belonging to the invention of a sliding system used in the carding of Fig. 1 in conjunction with a sliding cover, Fig. 12 shows a perspective view of the sliding system not belonging to the invention. Fig. 11 , Fig. 13 a schematic side view of the Krempel of Fig. 1 , wherein the installation points of the connecting strip according to the invention are Fig. 9 / 10 and the sliding system not belonging to the invention according to Fig. 11 / 12 are illustrated, and Fig. 14 shows another schematic side view of the rags not belonging to the invention. Fig. 1 , to illustrate the mode of operation and / or assembly of the sliding system according to Fig. 11 / 12 .

[0024] The following are, with reference to the Fig. 1 bis 10 and 13 Preferred embodiments of a carding machine 1 according to the invention, which serves to produce nonwoven fabric from fibrous material, are described. Identical features in the drawing are identified by the same reference numerals. It is understood that the drawing is simplified and, in particular, not to scale.

[0025] In Fig. 1 A carding machine 1 according to the invention is shown in a schematically simplified side view. This carding machine 1 comprises two rollers, each mounted about a pivot axis A, namely a pre-drum 2a and a main drum 2b. Both of these drums 2a, 2b are each provided with tooth-like fittings (not shown) in a known manner.

[0026] The Krempel 1 comprises a frame 3 to which side panels 4 (cf. Fig. 5 ) are permanently attached. These side plates 4 are arranged on both sides of a drum 2a, 2b and serve to support it around the respective axis of rotation A (cf. Fig. 2 ).

[0027] Each of the two drums 2a, 2b is assigned a casement device. Specifically, this consists of a first casement device V1, which is assigned to the front drum 2a, and a second casement device V2, which is assigned to the main drum 2b. Both the first casement device V1 and the second casement device V2 are each connected to an adjacent side plate 4 via a fastening device B, as will be explained in detail below.

[0028] With regard to the aforementioned formwork devices V1 and V2, it should be specifically noted that these are each provided on the two end faces of an associated drum 2a, 2b, i.e. on both sides thereof in extension of the respective axis of rotation A.

[0029] Each fastening device B, by which the first and second casing devices V1 and V2 are connected to the corresponding side panels adjacent to an end face of the front drum 2a and the main drum 2b, is preferably made of metal, for example aluminum or stainless steel, and is designed in a ring shape, such that it extends at least along an annular section around the axis of rotation A of the respective drum 2a, 2b. This is shown in the side view of Fig. 1 Illustrated. Alternatively, the fastening device B can also be made of plastic. The fastening device B can be molded onto the side plates or attached to the side plate as a separate one- or multi-part component.

[0030] Fig. 2 shows the pre-drum 2a and the main drum 2b of Krempel 1 from Fig. 1 In a further schematically simplified side view, now separated for better illustration, the drums 2a and 2b and adjacent to them (unspecified) frame assemblies for further machine elements of the carding machine 1 are located. It is clearly visible that the casing assemblies V1 and V2 are further arranged on the side plates of the drums and are moved apart together with them. Thus, only those casing assemblies for which the associated rollers and frames require maintenance can be removed.

[0031] The ring-shaped fastening devices B, which are used to connect the first formwork unit V1 or the second formwork unit V2 to the side plates 4 of the front drum 2a or the main drum 2b, respectively, are each formed from a plurality of ring segments R, which are each attached to or cast onto the said side plates 4. In the side view of Fig. 2 These ring segments for the first formwork unit V1 and the second formwork unit V2 are marked with "R" at some points as examples.

[0032] The first formwork unit V1 and the second formwork unit V2 each consist of a plurality of surface segments F arranged in a ring around the axis of rotation A of a respective drum 2a, 2b. This is shown by a side view of these formwork units V1, V2 according to Fig. 3 This clarifies. In detail, the first formwork unit V1 consists of the surface segments F1 and F2, while the second formwork unit V2 consists of the surface segments F4, F5 and F6.

[0033] The surface segment F9 is located in the middle between the pre-drum 2a and the main drum 2b. The surface segments F3, F7, F8 and F9 are assigned to the transfer or pickup rollers. Figur 3 It also shows the separated surface segments (F1 + F2; F3; F9; F4 + F5 + F6; F7; F8) of the formwork devices, which are assigned to the respective rollers and frames.

[0034] The formwork components V1 and V2 can be made of transparent plastic, for example, polycarbonate (PC). Thanks to its transparency, this type of plastic allows a view from the outside into the interior of the casing 1 and is also characterized by good impact resistance, thus reducing or even eliminating the risk of splintering or breakage of the surface segments from which these formwork components V1 and V2 are made. Alternatively, the formwork components V1 and V2 can also be made of wood, aluminum, or another metal.

[0035] The side view of Fig. 4 shows again the pre-drum 2a and the main drum 2b of the kit from Fig. 1 and illustrates the respective axes of rotation A around which these drums 2a, 2b are arranged. It is understood that these axes of rotation A each run perpendicular to the plane of the drawing.

[0036] Fig. 5 Figure 1 shows a perspective view of a segment of a side panel 4 to which a ring segment R of the fastening device B is attached, in order to connect a surface segment F of a casing device V1, V2. Further details can be found in the Fig. 7 , which is a sectional view of the Fig. 6 This shows that a ring segment of the fastening device B is attached to the side plate 4 by means of a (not further specified) screw connection. Alternatively, the fastening device B can also be cast onto the side plate 4. With regard to the surface segment F, it should be emphasized that this is attached to the fastening device B by means of a countersunk screw 8. Thanks to the flat head of such a countersunk screw 8, which is received in a through-hole of the surface segment F and is flush with an outer surface of the surface segment, an end face of an adjacent machine element 7 of the carding machine 1, as shown in the Fig. 6 It is evident that there is a small distance to the surface segment F, without any contact between this machine element 7 and the head of the countersunk screw 8.

[0037] Fig. 5 This further illustrates that a recess 6 is formed on a radially outer edge region 5 of the fastening device B. This recess 6 serves the purpose of allowing a machine element 7 of the carding machine 1 or an associated bearing to extend through this recess 6 without the fastening device B or an associated ring segment R being "in the way". In other words, the recess 6 allows the fastening device B or an associated ring segment R to be arranged close to an end face of a machine element 7 of the carding machine 1 and attached to its side plate 4 without colliding with, for example, a bearing axis of the machine element 7 or the like.

[0038] The aforementioned recess 6 in the radially outer edge region 5 of the fastening device B further offers the advantage that the segments of the edge region 5 adjacent to the recess 6 can extend relatively far outwards in the radial direction (with respect to the axis of rotation A of a drum) away from an associated side plate 4 without coming into disruptive interaction with a machine element 7 or its bearing elements. This simplifies the bolting of a surface segment F of a casing device V1, V2 to an associated fastening device B and its ring segment(s).

[0039] As explained above, the Krempel 1 according to the invention comprises a first casing device V1 and a second casing device V2. The following refers to the Fig. 7 und 8 explains how the surface segments of the formwork devices V1 and V2, which are adjacent to each other in the middle of the fore-drum 2a and the main drum 2b, can be connected to each other.

[0040] Fig. 7 shows a perspective view of a clamping plate 13 in conjunction with surface segments F of the adjacent formwork devices V1 and V2, wherein Fig. 8 a cross-sectional view through this clamping plate 13 and the associated surface segments F is shown.

[0041] At the in Fig. 8 The surface segment shown on the left, which belongs to the first formwork unit V1 and is accordingly designated "F(V1)", can be the surface segment F2 (cf. Fig. 3 ) act. In the case of the Fig. 7 The surface segment shown on the right, which belongs to the second formwork device V2 and is accordingly designated "F(V2)", can be the surface segment F5 (cf. Fig. 3 ) act. This means that these two surface segments F2 and F5 are directly adjacent to each other when the two formwork devices V1 and V2 are assembled.

[0042] To connect the adjacent surface segments F2 and F5, it is advantageous that their edge regions are arranged in an overlapping manner. Each of the surface segments F2 and F5 has a through-hole, which is secured by a screw 14 (see figure). Fig. 8 ) is penetrated. For this purpose, a threaded bore is formed in the clamping plate 13, aligned with the through holes in the surface segments, into which a free end of the screw 14 can be screwed.

[0043] The screwed-in state of screw 14, in which the two surface segments F2 and F5 are screwed together and attached to the clamping plate 13, is shown in the Fig. 7 und 8 shown.

[0044] For example, the through hole in the surface segment F5 can be designated as a slot 15 (see Fig. 8 ) be designed. Thus, it is possible to adjust the two surface segments F2 and F5 relative to each other before tightening screw 14, in order to allow for length compensation between these two surface segments F2 and F5 if necessary.

[0045] Thus, the clamping plate 13 fulfills a dual function: It not only serves to connect the adjacent surface segments of the respective formwork devices V1, V2, but also fulfills the function of an adjustment point, thanks to the elongated hole, which can be formed in at least one of the surface segments in an edge area, in order to make a length adjustment between the two formwork devices V1, V2 if necessary.

[0046] The arrangement of the clamping plate 13 between the surface segments F2 and F5 of the adjacently arranged formwork devices V1, V2 is also shown in the side view of Fig. 3 to recognize.

[0047] As explained above, the two formwork systems V1 and V2 each consist of a plurality of surface segments. The following refers to the Fig. 9 und 10 explains how the surface segments of a formwork system can be connected to each other.

[0048] Fig. 9 Figure 1 shows a perspective view of a connecting strip 9, which serves to connect surface segments of a formwork device V1, V2. For this purpose, the connecting strip 9 has grooved pockets 10 on opposite sides. In at least one of the grooved pockets 10, at least one projection 12 is formed on the inner surface 11.

[0049] Fig. 10 The connection bar 9 shows Fig. 9 , if two surface segments of a formwork device are inserted into the aforementioned groove pockets 10. For example, the surface segments F1 and F2 of the first formwork device V1 can be connected to each other by means of such a connecting strip 9, as shown in the Fig. 10 This is illustrated. Here, the surface segment F2 is firmly clamped within the associated groove pocket 10 due to the elevation(s) 12. Considering that in the other groove pocket 10, in which according to Fig. 10 Since the surface segment F1 is inserted and no protrusions are formed on the inner surface 11, the surface segment F1 is simply inserted into this groove pocket 10, whereby the clamping of the edge areas of this surface segment F1 within the groove pocket 10 is less "intense" than in comparison to the surface segment F2 taking into account the protrusion(s) 12. This means that a slight movement of the surface segment F1 within the associated groove pocket 10 is possible, for example to accommodate tolerances or thermal expansion.

[0050] Alternatively to the embodiment of Fig. 9 It is also possible that elevations 12 are formed on the former inner surface 11 of both groove pockets 10 of the connecting strip 9, possibly with different heights or dimensions in the respective groove pockets, so that even in this case a slight movement of a surface segment F in an associated groove pocket would be possible.

[0051] With regard to the aforementioned connecting strip 9, it is understood that this allows all other adjacent surface segments to be connected to each other in the manner described, either at the first formwork unit V1 or at the second formwork unit V2. This also applies, mutatis mutandis, to surface segment F9, which is connected to surface segments F2 and F4 (see...). Fig. 3 ) borders.

[0052] When the formwork devices V1, V2 are mounted on the trestle 1, they have an upper horizontal edge 17 (see Fig. 1 The casing 1 includes a sliding lid 16, which is slidably guided along this upper horizontal edge 17. For this purpose, a sliding system 18 is used, which is described below with reference to the Fig. 11 und 12 shown and explained in detail.

[0053] Fig. 11 Figure 1 shows a cross-sectional view, not belonging to the invention, through the sliding system 18, which comprises a clamping strip 19 and a sliding strip 20. The clamping strip 19 is attached to the upper horizontal edge 17 of a formwork device V1, V2, namely to an associated surface segment F. Taking into account the representation of Fig. 3 This clamping strip 19 can be attached to the top of surface segment F2 of the first formwork unit V1, and similarly to surface segments F5 and F6 of the second formwork unit V2. For this purpose, a (not further specified) groove in the clamping strip 19 is used, into which the upper edge of surface segments F2, F5, and F6 is inserted. On a section opposite the groove, the clamping strip 19 has a guide rib 21. The clamping strip 19 is attached to the aforementioned surface segments such that this guide rib 21 is oriented upwards. The function of this guide rib 21 is explained separately below.

[0054] The sliding rail 20 is attached to a lower edge of the sliding cover 16. A guide groove is formed in this sliding rail 20. As shown in the illustration of Fig. 11 The sliding strip 20 is attached to the lower edge of the sliding cover 16 in such a way that the guide groove 21 points downwards.

[0055] The clamping strip 19 can be made of metal, e.g., an aluminum profile. The sliding strip 20 preferably consists of a low-friction plastic material with good sliding properties. This ensures that the guide bar 21 moves along or within the guide groove 22 with minimal frictional resistance.

[0056] The operation of the aforementioned sliding system 18 is based on the fact that, in the assembled state, the guide web 21 of the clamping strip 19 and the guide groove 22 of the sliding strip 20 are in sliding engagement with each other, similar to a labyrinth seal. Specifically, this means that the guide web 21 engages the guide groove 22 from below, so that the sliding strip 20 is then movable relative to the clamping strip 19. In this way, it is possible to move the sliding cover 16 along the horizontal upper edge 17 of the casing devices V1, V2.

[0057] The Fig. 13 and 14 Further side views of the Krempel 1 are shown and illustrate possible locations where the connecting strip can be attached according to the Fig. 8 and 9 and the sliding system 18, which does not belong to the invention, according to the Fig. 11 und 12 to be used.

[0058] In the side views of Fig. 13 and Fig. 14 The boundary areas located between adjacent surface segments of the first and second formwork units V1 and V2, respectively, are each marked with hatching that runs perpendicularly along the edges of these boundary areas. It is understood that a connecting strip 9 is located there in accordance with these boundary areas. Fig. 9 / 10 It can be used to connect the surface segments of a formwork system as explained.

[0059] Furthermore, the side views of Fig. 13 and Fig. 14 A boundary area, located at the horizontal upper edge 17 of each formwork device, is provided with hatching that runs obliquely to the edges of this boundary area. This means that the sliding system 18 can be provided in this boundary area, i.e., at the horizontal upper edge 17 of the first formwork device V1 and the second formwork device V2.

[0060] Finally, it should be noted that chamfers 23 are provided on one end face of the guide groove 22 in the slide rail 20. This is further illustrated in the diagram. Fig. 14 This can be seen in the figure, which shows a view from below of the slide rail 20. These chamfers 23 widen the guide groove 22 on the end face of the slide rail 20, thus facilitating the entry of the guide web 21 into the guide groove 22.

[0061] The chamfers 23 serve primarily to simplify the mounting of the sliding cover 16 and the attached sliding strip 20 on the horizontal upper edge 17 of the casing devices V1, V2, and to ensure that the sliding cover 16 can be moved along this horizontal upper edge 17 in a reliable manner without the guide web 21 becoming jammed or clamped with the guide groove 22 formed in the sliding strip 20.

[0062] By means of the present invention it is possible to integrate or attach an inner lining of the Krempel 1 in the form of the first or second lining device V1, V2 in a space-saving manner and with simple means into a respective side panel 4 of the Krempel 1. Bezugszeichen

[0063] 1. Drum 2a. Front drum 2b. Main drum 3. Frame 4. Side plate 5. Radial outer edge (of the fastening device B) 6. Recess 7. Machine element (of the drum) 8. Countersunk screw 9. Connecting strip 10. Grooved pocket (of the connecting strip 9) 11. Inner surface (of the grooved pocket 10) 12. Raised section (on the inner surface 11 of the grooved pocket 10) 13. Clamping plate 14. Screw 15. Slotted hole 16. Sliding cover 17. Horizontal upper edge (of a casing device Vi) 18. Sliding system 19. Clamping strip 20. Sliding strip 21. Guide bar 22. Guide groove 23. Chamfer A. Rotary axis B. Fastening device F. Surface segment (of the formwork device V) R. Ring segment (R) (of the fastening device B) V1. First formwork device V2. Second formwork device

Claims

1. Roller card (1) for producing web from fibre material, comprising at least one cylinder (2a; 2b) which is mounted about a rotational axis (A), side plates (4) which are arranged on both sides of the cylinder (2a; 2b) and are mounted in fixed position on a frame (3), and at least one panelling arrangement (V1; V2) which is arranged laterally of the cylinder (2a; 2b), characterised in that the panelling arrangement (V1; V2) is fastened to the side plate (4) by means of an attachment device (B), the attachment device (B) being of annular construction in such a way that, at least along a ring-shaped sub-portion, it extends around the rotational axis (A) of the cylinder (2a; 2b).

2. Roller card (1) according to claim 1, characterised in that the panelling arrangement (V1; V2) consists of a plurality of planar segments (F1-F9) which are arranged in a ring around the rotational axis (A) of the cylinder (2a; 2b).

3. Roller card (1) according to claim 1 or 2, characterised in that at least one recess (6) is formed in a radially outer edge region of the attachment device (B), the dimensions of which recess are matched to a machine element (7) of the roller card (1).

4. Roller card (1) according to either one of claims 1 to 3, characterised in that the annular attachment device (B) is formed from a plurality of ring segments (R) which are each fastened to the side plate (4).

5. Roller card (1) according to any one of the preceding claims, characterised by a plurality of cylinders which are each mounted about a rotational axis (A), wherein each cylinder (2a; 2b), on a side thereof, is assigned a respective panelling arrangement (V1; V2) which is fastened to the side plate (4) of the respective cylinder (2a; 2b) by means of the annular attachment device (B).

6. Roller card (1) according to any one of claims 2 to 5, characterised in that mutually adjacent panelling arrangements and / or the planar segments (F1-F9) thereof are joined to one another along their edge regions.

7. Roller card (1) according to claim 6, characterised in that the edge regions of mutually adjacent planar segments (F1-F9) of the panelling arrangement (V1; V2) are joined to one another by means of a connecting strip (9).

8. Roller card (1) according to claim 7, characterised in that the connecting strip (9) has, on opposite sides thereof, receiving grooves (10) into which the edge regions of the adjacent planar segments (F1-F9) of the panelling arrangement (V1; V2) are insertable.

9. Roller card (1) according to claim 8, characterised in that on the inner surface (11) of at least one receiving groove (10) of the connecting strip (9) there is formed at least one protuberance (12) by means of which an edge region of a planar segment (F) of the panelling arrangement (V1; V2) is clamped inside that receiving groove (10).

10. Roller card (1) according to claim 6, characterised in that the edge regions of mutually adjacent panelling arrangements and / or of the planar segments (F1-F9) thereof overlap one another and are screwed to one another by means of a clamping plate (13) which runs along the edge regions, there preferably being provided, at least in the edge region of a planar segment through which a screw (14) passes, a slot (15) with which length adjustment between the mutually adjacent planar segments (F1-F9) is possible.

11. Roller card (1) according to any one of the preceding claims, characterised by a sliding cover (16) which is displaceably guided on a horizontal upper edge (17) of the panelling arrangement (V1; V2) or adjacently thereto, and by a slide system (18) provided between the upper edge (17) of the panelling arrangement (V1; V2) and the sliding cover (16), which slide system has a clamping strip (19) and a slide strip (20), the clamping strip (19) being attached to the upper edge (17) of the panelling arrangement (V1; V2), and the slide strip (20) being joined to the sliding cover (16) and being in sliding contact with the clamping strip (19) located therebelow.

12. Roller card (1) according to any one of the preceding claims, characterised by an attachment device (B) which is moulded onto the side plate (4) or is attached to the side plate (4) as a separate one-part or multi-part component.

13. Roller card (1) according to claim 11, characterised in that the clamping strip (19) has an upwardly directed guide rib (21), and in the slide strip (20), on a side opposite the clamping strip (19), there is formed a guide groove (22) with which the guide rib (21) of the clamping strip (19) is in sliding engagement, the guide groove (22) preferably being provided with bevels (23) at an end face of the slide strip (20).