Circular comb for carding machine

Abstract

A circular comb (6) for a carding machine for carding textile fibres and for attachment to a shaft of the carding machine rotatable about an axis (W) is described. The circular comb (6) has a base body (15) carrying a combing group (17) and a mass compensator (16) attached to the shaft in a rotationally meshing manner on a side of the shaft opposite the combing group (17). After installation in the carding machine, there is an adjustable support mechanism (30) between the base body (15) and the mass compensation part (16), the base body (15) is in direct contact with the mass compensation part (16) in some regions, and the base body (15) and the mass compensation part (16) are variable in terms of their position relative to each other perpendicular to the axis (W), such that the position of the comb teeth (33) of the carding group (17) is adjustable.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This patent application claims the priority of German patent application DE 10 2022 210 530.3, the content of which is incorporated herein by reference. Technical Field

[0003] The invention relates to a circular comb for a carding machine for combing textile fibers and for being attached to a shaft of the carding machine that is rotatable about an axis. Background Art

[0004] The circular combs used in the combing machines are known in the prior art. A combing group is arranged on a base body of the circular comb and engages with the fiber tufts of the fabric fibers to be combed. The combing group is arranged along at least part of the circumference of the peripheral part of the base body, thereby defining an active combing region. The combing effect depends on the combing distance between the combing envelope curve of the circular comb of the combing group, which is the curve traveled by the combing group, and the upper nipper lip of the nipper unit. To set the required combing distance, it is known that the base body together with the combing group is variable in terms of its position perpendicular to the axis.

[0005] In order to adjust the base body and the combing group, for example, EP 3 754 055 A1 proposes to install an inserting guide rail between the base body and the shaft, and the distance between the inserting guide rail and the base body is variable by inserting a flat wedge.

[0006] A circular comb is known from EP 2 789 716 A1, in which a replaceable spacer can be arranged between a support element and a basic body.

[0007] Although the known solutions do in principle allow the position of the comb tips to be adjusted, they have the disadvantage that a plurality of different components, such as supports and spacers, need to be arranged relative to each other between the base and the shaft, and this makes the position adjustment complex and prone to errors. The mutual dependence of the different components also affects the stability of the circular comb. Summary of the invention

[0008] The object of the present invention is therefore to improve the positioning of the combing tips of a circular comb, in particular to provide a circular comb which allows a simple and precise adjustment of the position of the combing tips and which has stability.

[0009] This object is achieved by a circular comb having the features of claim 1. The circular comb according to the invention has a base body and a mass compensator, the base body carrying a combing group on an outer arc-shaped peripheral portion, and the mass compensator is configured to be attached to the shaft in a rotating meshing manner on the side of the shaft opposite to the combing group in a radial perspective along the shaft. The central idea of ​​the invention is that when installed in a combing machine, there is an adjustable support mechanism between the base body and the mass compensator. The support mechanism is configured so that the base body is in direct contact with the mass compensator in some areas, and the base body and the mass compensator are variable in terms of their relative positions relative to each other perpendicular to the axis, so that the position of the comb teeth of the combing group can be adjusted. The support mechanism combines the adjustable position of the comb teeth with the stable support of the base body on the mass compensator due to direct contact. This improves the stability of the circular comb. In particular, the base body is in direct contact with the counterweight of the mass compensator, preferably in close contact (positive contact) with it. No additional support is required. The circular comb has a simple and stable structure. This improves the operational reliability of the combing machine. In particular, reliable operation is ensured also at the high operating speeds of the carding machine.

[0010] The direct contact between the base body and the mass compensation element also has the advantage of simple and precise orientation of the base body and the combing elements arranged thereon relative to the axis. This reduces—and in particular prevents—accidental tilting or twisting of the combing group relative to the axis.

[0011] The support mechanism particularly simplifies the assembly of the circular comb on the shaft. For example, the base body can be removed in a simple manner for cleaning and / or changing the combing group.

[0012] In particular, the combing group has a plurality of combing bars arranged tangentially in sequence in the circumferential direction, which cover the combing circumferential angle segment as a whole and define the combing area of ​​the circular comb. The combing bars can be, for example, individually accommodated and fixed (especially releasably fixed) in the corresponding combing grooves of the base body.

[0013] The base body of the circular comb can be, for example, a one-piece base body. It can also be formed in a split type. The base body can, for example, have a lattice structure in order to achieve both weight reduction and high stability.

[0014] The mass compensator is attached to the shaft in a rotationally meshed manner. For example, the mass compensator can be fixed to the shaft using a set screw that passes through the shaft. The set screw is preferably screwed into a counterholder opposite the shaft. This ensures that the mass compensator is firmly fixed to the shaft in a rotationally meshed manner. In addition or as an alternative, the mass compensator can be clamped to the shaft using a bracket that surrounds the shaft. For example, a pressure piece can be used to press the bracket into a corresponding groove in the mass compensator, in particular the counterweight of the mass compensator.

[0015] The position and direction specifications used here relate in particular to the axis of rotation of the shaft, also referred to as the axis. This axis defines a cylindrical coordinate system. Thus, "axial" means an orientation in the direction of the axis, "radial" means an orientation perpendicular to the axis, and "tangential" means an orientation in a circumferential direction around the axis. The combing direction of a circular comb is in particular the direction of rotation of the circular comb as the shaft rotates about the axis. It is in particular one of the two circumferential directions of the axis.

[0016] Textile fibers are in particular wool fibers, cotton fibers, synthetic fibers, chemical fibers or fibers made from a mixture of at least two of the above fiber types.

[0017] Advantageous configurations of the circular comb according to the invention are apparent from the features of the claims dependent upon claim 1 .

[0018] In an advantageous configuration, the adjustable support means is configured for a linear displacement, in particular a translation, of the base body relative to the mass compensator. The support means is particularly preferably configured for a linear displacement, in particular a translation, of the base body relative to the mass compensator in a direction perpendicular to the axis. For example, the base body can be moved, in particular a translation, relative to the axis in a direction extending radially relative to the axis, in opposition to the mass compensator. The linear displacement allows the position of the comb teeth, in particular the position of the combing envelope curve through which the comb teeth are adjusted, to be adjusted simply and effectively.

[0019] Preferably, a linear displacement, in particular a translation, of the substrate relative to the mass compensator is guided. For example, during the linear displacement, surface areas of the substrate or the mass compensator that are in direct contact may translate relative to one another. This ensures a smooth and precise linear displacement in one direction while fixing the relative position in other spatial directions.

[0020] In an advantageous configuration, the adjustable support means is configured such that the relative position between the base body and the mass compensation element perpendicular to the axis is set to be different at the first axial end when viewed in the direction of the axis than at the second axial end when viewed in the direction of the axis. This makes it possible to set the longitudinal inclination of the base body as required to any corresponding longitudinal inclination of the upper nipper lip. The circular comb is particularly flexible and can be precisely adapted to the relevant application, in particular to the relevant combing machine. A defined combing distance can be precisely set in a simple manner in the axial direction over the entire length of the base comb.

[0021] In an advantageous configuration, the adjustable support mechanism is configured to enable a pivoting movement of the base body relative to the mass compensator, in particular about a pivot axis extending parallel to the axis and arranged laterally offset from the axis. The pivoting movement enables a smooth and simple adjustment of the relative position between the base body and the mass compensator. The pivot axis is advantageously arranged parallel to the axis and laterally offset from the axis. This results in a particularly effective change in the distance of the comb teeth from the axis during the pivoting. The extension of the pivot axis parallel to the axis has the advantage that the change in the position of the comb teeth relative to the axis occurs uniformly in the direction of the axis over the entire length of the circular comb.

[0022] In an advantageous configuration, the base body rests only on the mass compensation element after assembly. There is no direct connection between the base body and the axis. This has the advantage that only the base body needs to be oriented relative to the mass compensation element during assembly. Loosening of the fastener between the base body and the axis is prevented. Assembly is simple and error-prone. The circular comb is simple and durable.

[0023] In an advantageous configuration, the mass compensating element has at least one contact surface for contacting the shaft in the assembled state. The contact surface between the mass compensating element and the shaft provides a high degree of stability. The mass compensating element can be fixed firmly and securely to the shaft. This does not prevent easy removal and installation of the base body.

[0024] In an advantageous configuration, the base body has an inner side facing the shaft, which inner side together with the inner wall of the groove defines the groove, and in the assembled state there is a gap between the inner wall of the groove of the base body and the shaft. The gap defines the distance between the base body and the shaft. This ensures that the base body rests only on the mass compensation element in a particularly simple manner. The gap also reduces the weight of the circular comb, in particular the base body. This allows the carding machine to operate reliably and efficiently even at high operating speeds.

[0025] In particular, the inner wall of the groove has an inner wall radius, which is defined as the minimum distance between the axis and the inner wall of the groove in the radial direction. The inner wall radius is, for example, between 124% and 250% of the shaft radius, in particular between 155% and 210% of the shaft radius. For example, the inner wall radius can be about 206%, about 177% or about 155% of the shaft radius. Exemplary shaft radii are 15 mm, 17.5 mm, 20 mm, 22.5 mm or 25 mm. The inner wall radius in the assembled state can be selected to be, for example, about 31 mm or about 36 mm.

[0026] In the assembled state, the gap has in particular a gap radius between the inner wall of the groove and the outer surface of the shaft. The gap radius is defined as the smallest distance between the inner wall of the groove and the outer surface of the shaft in the radial direction. The gap radius is, for example, between 24% and 150% of the shaft radius of the shaft of the carding machine, in particular between 55% and 110% of the shaft radius.

[0027] In an advantageous configuration, the mass compensating element is at least partially accommodated in the recess in the assembled state. Accommodating the mass compensating element at least partially in the recess ensures a compact and stable configuration of the circular comb. The mass compensating element can preferably contact a sub-region of the inner wall of the recess to ensure a secure and stable support of the base body.

[0028] In an advantageous configuration, the base body as part of the support mechanism has at least two fixing surfaces extending parallel to the axis, and the base body in the assembled state is in direct, close contact with the mass compensator in the region of the fixing surfaces, so that the base body with the mounted combing group is oriented and fixed in the direction of the axis. Due to the direct contact of the mass compensator in the region of the fixing surfaces, the base body is particularly preferably oriented parallel to the axis. At least two fixing surfaces ensure that the base body is stably and reliably supported on the mass compensator. Accidental tilting or pivoting of the base body relative to the mass compensator, in particular in the circumferential direction, is prevented. This makes assembly simple and error-prone.

[0029] The fixing surface can, for example, rest, in particular flatly, on a corresponding mating fixing surface of the mass compensator, in particular a counterweight of the mass compensator. The fixing surface and the mating fixing surface can be displaced relative to each other, in particular in some areas, in order to enable a guided displacement of the base body relative to the mass compensator.

[0030] In an advantageous configuration, at least two fastening surfaces are flat. Flat fastening surfaces simplify a linear displacement, in particular a translation, of the base body relative to the mass compensation element for adjusting the position of the comb teeth. In addition, a large-area contact between the base body and the mass compensation element is ensured, and thus a particularly stable support of the base body on the mass compensation element is achieved.

[0031] In an advantageous configuration of the circular comb, at least two fastening surfaces are curved in a plane defined perpendicularly to the axis, in particular curved to different degrees. The curvature of the at least two fastening surfaces enables a guided pivoting of the base body relative to the mass compensation element in a simple manner. The intimate contact between the base body and the mass compensation element is not impeded by the pivotability. The mass compensation element particularly preferably has a correspondingly curved counterfastening surface in order to ensure direct surface contact, in particular independently of the pivot position.

[0032] The different curvatures of the at least two fixing surfaces in planes defined perpendicularly to the axis also have the advantage of preventing the basic body from being assembled in an unintended orientation. This makes assembly easier and increases operational reliability.

[0033] In an advantageous configuration of the circular comb, at least two fastening surfaces have a common axis center in a plane defined perpendicularly to the axis. The common axis center can in particular define a pivot axis for a relative pivoting movement between the base body and the mass compensator. This enables a particularly smooth and precise pivoting of the base body relative to the mass compensator. The common axis center is preferably offset laterally from the axis in a plane defined perpendicularly to the axis. This makes it possible to adjust the position of the comb teeth particularly simply and effectively by pivoting the base body relative to the mass compensator.

[0034] In an advantageous configuration of the circular comb, the support mechanism has a releasable fastening device for fixing the variable position between the base body and the mass compensator by clamping. For example, the releasable fastening device can be formed by clamping screws, which can be screwed into corresponding holes in the mass compensator in particular. It is particularly preferred that the releasable fastening device, in particular the clamping screw, is guided through a groove, in particular a slot, formed in the base body in the assembled state. For example, the releasable fastening device can be pressed through a corresponding groove, in particular a slot, in the region of the fixing surface of the base body. The clamping force is then applied in the region of the fixing surface. This enables a secure fixing over a large area. The slot enables a simple, in particular guided positioning of the base body relative to the mass compensator when the fastening device is released. By means of the slot, the relative position between the base body and the mass compensator can be flexibly adjusted.

[0035] It is particularly preferred that the releasable fastening means, in particular the clamping screw, is oriented such that the clamping force is oblique to, preferably substantially perpendicular to, the adjustment direction in which the position of the base body relative to the mass compensation element is adjusted. This ensures that the positioning of the base body relative to the mass compensation element is not influenced by the clamping force. The support mechanism is precisely adjustable.

[0036] In an advantageous configuration of the circular comb, the support mechanism has an orientation device which ensures the desired relative orientation of the base body and the mass compensator in the assembled state. This reliably prevents assembly in an incorrect orientation. For example, the orientation device can be provided by at least two fixing surfaces extending with different curvatures in a plane defined perpendicular to the axis. In addition or as an alternative, the orientation device can also have releasable fastening devices on different sides of the base body and the mass compensator along the circumferential direction, which are arranged offset to each other, in particular arranged offset to each other in the direction of the axis.

[0037] In an advantageous configuration of the circular comb, the support mechanism has a suspension device on the base body and a counter-suspension device on the mass compensator, so that the base body can be suspended on the mass compensator during assembly. This simplifies assembly. The base body does not need to be held by hand during assembly. This also increases the precision of setting the position of the comb teeth. Suspension devices and counter-suspension devices in the form of bayonet slits or bayonet projections have been found to be particularly suitable. This makes it possible to simply suspend the base body on the mass compensator without tools. Preferably, the relative position between the base body and the mass compensator can be at least approximately predetermined by the bayonet lock formed in this way. This simplifies assembly.

[0038] In a particularly advantageous configuration, the suspension device on the base body and the mating suspension device on the mass compensating element participate in a variable positioning of the base body and the mass compensating element relative to one another. For example, by changing the position of the suspension device and / or the mating suspension device, the base body can be at least pre-positioned, preferably precisely positioned, relative to the mass compensating element. For example, the suspension device can be dimensioned such that the mating suspension device is held therein without play. In particular, the bayonet slot can be dimensioned such that the bayonet projection is held therein without play. By adjusting the position of the suspension device and / or the mating suspension device, the base body is then displaced accordingly relative to the mass compensating element.

[0039] In a particularly suitable configuration, the bayonet projection can be formed, for example, as part of an eccentric shaft. The position of the bayonet projection can be changed by rotating the eccentric shaft. It is particularly preferred that an eccentric shaft with a bayonet projection is arranged at each axial end of the circular comb. It has been found to be particularly suitable to arrange the eccentric shaft in or on the mass compensator.

[0040] A particularly preferred configuration enables the suspension device and / or the paired suspension device to be adjusted by simply applying a force. For example, the eccentric shaft can be rotated by applying a force using an eccentric adjustment screw. The eccentric adjustment screw can, for example, engage the drive surface of the eccentric shaft in a manner that deviates from the central longitudinal axis of the eccentric shaft. It is particularly advantageous that the eccentric shaft is biased to resist the force applied by the eccentric adjustment screw. This makes it possible to reset the eccentric shaft in a simple manner when the eccentric adjustment screw is turned back. Alternatively or in addition, the rotation angle of the eccentric shaft can be limited by a limiting member. This prevents the eccentric shaft from twisting and thus prevents the mass compensation member from changing its position relative to the base body beyond a predetermined adjustment range. For example, the fixed limiting member can protrude into a limiting retainer arranged in the eccentric shaft. The maximum rotation angle is then defined by the stop faces of the limiting bracket, which are opposite to each other in the circumferential direction of the eccentric shaft.

[0041] In an advantageous configuration, the support mechanism has an adjustment device for adjusting the variable relative position between the base body and the mass compensating element. This makes the relative position between the base body and the mass compensating element particularly simple and precise. It is not necessary to hold the base body by hand when adjusting the relative position. The circular comb is easy to install and reliable in operation. It is particularly preferred if a suitable adjustment device is present in the region of each axial end of the circular comb.

[0042] As mentioned above, suitable adjustment means can be formed, for example, by adjustable suspension means and / or mating suspension means. Particularly suitable suspension means can be, for example, the above-mentioned bayonet projection, which is arranged on the eccentric shaft, particularly preferably in combination with a corresponding eccentric adjustment means.

[0043] Alternatively or additionally, the adjustment device can also have an adjustment screw. The adjustment screw can, for example, be screwed into the base body or the mass compensator and rest against the other of the two components. For example, an adjustment screw can be provided at each axial end of the circular comb. The adjustment screw is easily accessible and operable at the axial end. For example, the adjustment screw can be screwed into the mass compensator and rest against the base body, in particular against an end face cap of the base body. This ensures that sufficient force is applied when adjusting the position. Due to the presence of the adjustment device, there is no need to apply force permanently, since the position of the base body relative to the mass compensator is preferably fixed using a releasable fastening device. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Other features, advantages and details of the present invention will become apparent from the following description of embodiments with reference to the accompanying drawings, in which:

[0045] Figure 1 is a schematic diagram of a carding machine comprising a circular comb having a base body and a mass compensation element and mounted on a shaft,

[0046] Figure 2 is used for Figure 1 A side view of an embodiment of a circular comb of a carding machine,

[0047] Figure 3 It is mounted on the shaft. Figure 2 A front view of the circular comb in FIG. 1, but without showing the end holes,

[0048] Figure 4 yes Figure 2 A perspective view of the base of the circular comb in FIG.

[0049] Figure 5 yes Figure 2 Perspective view of the mass compensation of the circular comb in

[0050] Figure 6 yes Figure 5 Top view of the mass compensation part in

[0051] Figure 7 is used in Figure 5 Perspective view of the eccentric shaft used in the mass compensation,

[0052] Figure 8 It passes along line AA Figure 6 A longitudinal cross-sectional view of the mass compensation part in FIG.

[0053] Fig. 9 It passes along the BB line Figure 6 A longitudinal cross-sectional view of the mass compensation part in FIG.

[0054] Fig.10 It passes along CC line Figure 6 A longitudinal cross-sectional view of the mass compensation part in FIG.

[0055] Fig.11 is a front view of another embodiment of a mass compensator for a circular comb,

[0056] Fig.12 yes Fig.11 Side view of the mass compensation part in

[0057] Fig.13 yes Fig.11 A partial cross-sectional top view of the mass compensation part in FIG. 1 , with the section planes s1 and s2 at Fig.12 The bid was

[0058] Fig.14 is a side view of another embodiment of a circular comb,

[0059] Fig.15 is a side view of another embodiment of a circular comb,

[0060] Fig.16 is a side view of another embodiment of a circular comb,

[0061] Fig.17 is a front view of another embodiment of a circular comb,

[0062] Fig.18 is a partial cross-sectional front view of another embodiment of a circular comb,

[0063] Fig.19 is a sectional view of a combing machine comprising another embodiment of a circular comb, partially shown in sectional view, which is configured so that the base body can be pivotally displaced relative to the mass compensation element,

[0064] Fig. 20 yes Fig.19 A front view of the base of the circular comb in FIG.

[0065] Fig.21 yes Fig.19 A perspective view of the matrix in , and

[0066] Fig. 22 is a front view of another embodiment of a circular comb, which is configured so that the base body can be pivotally displaced relative to the mass compensation element. DETAILED DESCRIPTION

[0067] exist Figures 1 to 9 In the description, the same reference symbols are used for mutually corresponding parts. The details of the exemplary embodiments explained in more detail below can also constitute an invention on their own or form part of the inventive subject matter.

[0068] Figure 1 An embodiment of a carding machine 1 for carding textile fibers is shown. Figure 1 The carding machine is only schematically shown in FIG. It has a nipper unit 2, a delivery unit 3, a brush 4 and a circular comb 6 mounted on an axis 5.

[0069] The tongs unit 2 is used to feed the textile fibers to be combed. It has an upper tongs 7 and a lower tongs 8. The upper tongs 7 and the lower tongs 8 can be opened and closed during the combing cycle (=combing gap). Figure 1 In the closed state, the tongs unit 2 also moves relative to other machine parts of the carding machine 1 during the carding cycle, in particular relative to the delivery unit 3 and its fixed delivery rollers 9, 10, 11 and 12. This relative movement is achieved by a transmission that rotates around the tongs axis 13.

[0070] The output rollers 9, 10, 11 and 12 of the output unit 3 are arranged in pairs. They are used to collect and remove the combed fabric fibers.

[0071] The circular comb 6 is used to comb the fabric fibers. The end of the upper pliers 7 facing the circular comb 6 is formed with an upper pliers lip 14. The upper pliers lip 14 cooperates with the circular comb 6 to comb the fabric fibers. Optionally, there may also be a fixed comb (not shown) attached to the fixed comb holder 52 of the pliers unit 2.

[0072] Figure 1 The circular comb 6 is only schematically shown in the figure. It has a base body 15 and a mass compensator 16. The mass compensator 16 is attached to the shaft 5 in a rotationally meshed manner. The base body 15 relies on the mass compensator 16. A combing group 17 is arranged along the arc-shaped outer periphery of the base body 15. The combing group 17 has a plurality of comb rods 18, which are arranged in the circumferential direction of the base body 15 around the axis W of the shaft 5. In the embodiment shown, the combing group 17 has six comb rods 18. The comb rods 18 as a whole cover a combing circumferential angle segment, which defines the combing range of the circular comb 6. The combing circumferential range can be, for example, between 75° and 150°.

[0073] When the carding machine 1 is in operation, the shaft 5 is driven to rotate about the axis W, in particular at a discontinuous angular velocity. This causes the circular comb 6 to rotate via the mass compensation 16, which is attached in a rotationally meshing manner to the shaft 5. The carding machine 1 is operated at a high combing cycle rate, for example the shaft 5 and therefore the circular comb 6 are operated at 600 revolutions per minute.

[0074] The axis W extends in the longitudinal direction of the circular comb 6. The axis W can also be understood in particular as the central longitudinal axis of the circular comb 6. With respect to the axis W, a cylindrical coordinate system is defined, in which the axial direction z is oriented along the axis W, the radial direction r is oriented in a direction away from the axis W, and the tangential direction Points in the circumferential direction around the axis W. Corresponds to Figure 1 The plane of the drawing and hereinafter also referred to as the normal plane N is defined as a plane perpendicular to the axis W. In the cylindrical coordinate system, the normal plane N is composed of the radial direction r and the circumferential direction Zhang Cheng.

[0075] When the circular comb 6 is driven in rotation by the shaft 5, it, in particular its combing group 17, moves along the combing envelope curve 19. The combing envelope curve 19 is circular in the normal plane N and has a combing radius R, which corresponds to the maximum radial distance of the comb teeth 33 of the combing group 17 from the axis W. The minimum distance between the upper nipper lip 14 and the combing group 17, in particular its comb teeth 33, is called the combing distance d. The correct positioning of the comb teeth 33 of the combing group 17 relative to the upper nipper lip 14 and therefore the combing distance d is an important parameter for the operation of the carding machine 1. In order to accurately adjust the combing distance d, the position of the comb teeth 33 of the combing group 17 is adjustable. For this purpose, the position of the base body 15 relative to the mass compensation element 16 can be varied perpendicular to the axis W. The relative position can be adjusted so that the maximum radial distance of the comb teeth 33 from the axis W and therefore the maximum radial distance of the combing radius R can be changed.

[0076] A first embodiment of the circular comb 6, in particular of the base body 15 and the mass compensating element 16 and their relative displaceability, will be described in detail below. Figures 2 to 10 Described in detail in.

[0077] The mass compensator 16 has a counterweight 20. A bracket 22 is attached to the counterweight 20 via a pressure block 21. In the assembled state, the shaft 5 is clamped between the bracket 22 and the mass compensator 16, so that the mass compensator 16 is attached to the shaft 5 in a rotationally engaged manner. In addition to or instead of the bracket 22, the mass compensator 16, in particular its counterweight 20, can be screwed onto the shaft.

[0078] The counterweight body 20 is formed with a recessed portion 50 having an arc-shaped cross section for partially receiving the shaft 5. The recessed portion 50 forms a contact surface 51 of the mass compensation member 16 for direct contact with the shaft 5 in the assembled state.

[0079] The base body 15 has a comb receiving groove 23, into which the comb rod 18 can be inserted and locked in a known manner. The base body 15 is not a solid structure, but a grid structure composed of grid support rods 24. This grid structure ensures that the base body 15 is both strong and light. In order to reduce the entry of dust into the grid structure, especially into the comb receiving groove 23, the round comb 6 is equipped with end caps 25 after assembly, which are held in the corresponding receiving grooves 27 of the base body 15 by screws 26.

[0080] The base 15 has an arcuate cross section in a normal plane N perpendicular to the axis W. The inner side of the base 15 facing the shaft 5 after assembly defines a groove 28 having an inner groove wall 29. After assembly to the shaft 5, a gap is formed between the shaft 5 and the inner groove wall 29. In the radial direction, the gap has a gap radius F. The gap radius F is defined as the minimum distance between the inner groove wall 29 and the outer surface of the shaft 5 in the radial direction.

[0081] After assembly, the shaft 5, the bracket 22 and at least part of the mass compensation element 16 are received in the groove 28. After assembly, the base body 15 is not in direct contact with the shaft 5, in particular, the base body is not directly connected or attached to the shaft 5.

[0082] After the assembly is completed, the base 15 is only supported by the mass compensation member 16. To this end, a support mechanism 30 is formed between the base 15 and the mass compensation member 16, which will be described in detail below.

[0083] The support mechanism 30 has a direct close contact between the base 15 and the mass compensator 16. To this end, the base 15 has two fixing surfaces 31 extending in parallel in the direction of the axis W. The fixing surfaces 31 are flat and are part of the inner groove wall 29. After assembly, the fixing surfaces 31 are in contact with the flat matching fixing surfaces 32 of the mass compensator 16 in a positive fit manner, and the matching fixing surfaces 32 extend in parallel along the axis W. The matching fixing surfaces 32 are configured as the outer surface of the counterweight body 20. Due to the close contact of the fixing surfaces 31 with the matching fixing surfaces 32, the base 15 with the combing group 17 installed is oriented and fixed in the direction of the axis W after the assembly is completed. The base 15 is prevented from twisting relative to the mass compensator 16 in a direction perpendicular to the flat fixing surfaces 31. At the same time, the flat configuration of the fixing surfaces 31 and the matching fixing surfaces 32 allows the base 15 to be linearly displaced relative to the mass compensator 16, thereby changing their relative positions and adjusting the positions of the comb teeth 33.

[0084] The base body 15 can be linearly displaced relative to the mass compensation member 16 in a direction perpendicular to the axis W. The direction in which the displacement occurs is perpendicular to the axis W and perpendicular to the surface normal of the fixing surface 31 .

[0085] In the assembled state, the base 15 and the mass compensator 16 are clamped together by a releasable fastening device in the form of a clamping screw 34. The clamping screw 34 passes through a slot 35 formed in the base 15 and is screwed into a hole in the counterweight body 20 of the mass compensator 16. The clamping screw 34 clamps the base 15 to the mass compensator 16 via a fixing surface 31 or a counter-fixing face 32. The resulting clamping force acts in the direction of the surface normal of the fixing surface 31 or the counter-fixing face 32. This enables the clamping force to be applied over a large area. In addition, the clamping force acts perpendicularly to the displacement direction of the base 15 relative to the mass compensator 16. Therefore, the linear displacement and therefore the position of the comb teeth 33 can be adjusted accurately and are not affected by the clamping force.

[0086] The hole in the counterweight body 20 for screwing in the clamping screw 34 is aligned with the corresponding slot 35 on the base body 15 in the circumferential direction. The circular comb 6 is arranged in pairs relative to each other. The relative holes and slots 35 are in the same axial position along the z direction or the axis W. In other embodiments not shown, the relative clamping screws and slots may also have an offset, in particular an offset in the direction of the axis W. This breaks the symmetry of the releasable fastening device. The base body and the mass compensator can only be connected to each other in a predetermined relative direction. This reliably prevents incorrect assembly of the circular comb 6, in particular the orientation error of the comb teeth relative to the combing direction (i.e., the rotation direction of the shaft). This symmetry destruction forms an orientation device that ensures the desired relative orientation of the base body and the mass compensator after assembly. Other orientation devices, in particular symmetry destruction, are also conceivable. For example, the relative flat fixing surfaces and the matching fixing surfaces in the normal plane N cannot extend parallel to each other, so that only one fixing surface is suitable for close contact with one of the matching fixing surfaces.

[0087] The configuration of the slot 35 allows the position of the base body 15 to be changed relative to the mass compensation element 16. To change the relative position, the clamping screw 34 can be loosened and the base body 15 can be brought into the desired position relative to the mass compensation element 16. In the desired relative position, the clamping screw 34 can be tightened again to fix the base body 15 to the mass compensation element 16 by clamping.

[0088] In principle, the linear displacement of the base body 15 relative to the mass compensator 16 and thus relative to the shaft 5 can be accomplished manually by lifting the base body 15 into the corresponding position with the clamping screw 34 loosened. For example, the base body 15 can be pressed manually onto a gauge band inserted between the comb teeth 33 and the upper lip 14. In order to simplify the displacement and to precisely adjust the position of the comb teeth 33, the support mechanism 30 of the circular comb 6 has an adjustment device 36 for adjusting the variable relative position between the base body 15 and the mass compensator 16.

[0089] The adjusting device 36 has an eccentric shaft 37 inserted into the counterweight body 20 of the mass compensating member 16. The adjusting device 36 has two eccentric shafts 37, which are assigned to the corresponding end faces of the mass compensating member 16. The eccentric shaft 37 is inserted into the counterweight body 20 so that the eccentric shaft central longitudinal axis E extends perpendicularly to the axis W and perpendicularly to the mating fixing surface 32. The eccentric shaft central longitudinal axis E extends in the width direction of the mass compensating member 16.

[0090] Each eccentric shaft 37 has a bayonet projection 38 at each end thereof which is eccentric to the central longitudinal axis E of the eccentric shaft. The opposing bayonet projections 38 each have the same offset from the central longitudinal axis E of the eccentric shaft.

[0091] The bayonet projections 38 are pressed to the side of the counterweight body 20 through the through openings 39 in the mating fixing surface 32 and protrude laterally beyond them. The bayonet projections 38 cooperate with the bayonet slits 40 in the base body 15. The bayonet projections 38 and the bayonet slits 40 form a bayonet lock, via which the base body 15 can be suspended on the mass compensation part 16. The bayonet slits 40 serve as a suspension device, and the bayonet projections 38 serve as a mating suspension device for the support mechanism 30. This simplifies assembly. Even if the clamping screws 34 are not tightened, there is no need to support the base body 15 by hand.

[0092] When the eccentric shaft 37 rotates, the position of the bayonet protrusion 38 changes in a plane parallel to the mating fixing surface 32. The displacement of the bayonet protrusion 38 has a component parallel to the axis W and a component perpendicular to the axis W. The displacement component perpendicular to the axis is essential for setting the position of the base body 15 relative to the mass compensation part 16. Therefore, the size design of the bayonet slit in the direction perpendicular to the axis is such that the bayonet protrusion 38 is held in the bayonet slit 40 without play in this direction. The displacement component parallel to the axis W is compensated by a corresponding longitudinal extension of the bayonet slit 40.

[0093] When the eccentric shaft 37 rotates, the movement component of the bayonet protrusion 38 perpendicular to the axis W is transmitted to the base body 15 via the bayonet slit 40. The bayonet protrusion 38 and the bayonet slit 40 and the corresponding suspension device or mating suspension device of the support mechanism 30 participate in the variable positioning of the base body 15 and its mass compensation part 16 relative to each other. The eccentric arrangement of the bayonet protrusions 38 at opposite ends of the eccentric shaft 37 also ensures that the base body 15 can be positioned in the circumferential direction. The two opposite sides are uniformly displaced relative to the mass compensation member 16. This reliably prevents the base body 15 from getting stuck and / or tilting.

[0094] The following describes the driving method of the eccentric shaft 37. The eccentric shaft 37 has two grooves arranged on the outer surface and offset in the longitudinal direction E of the eccentric shaft center, and the bottoms of these grooves form a driving surface 41 and a mating driving surface 42 respectively.

[0095] The eccentric adjusting screw 43 meshes with the driving surface 41 on one side of the eccentric shaft central longitudinal axis E. By screwing in the eccentric adjusting screw 43, an adjusting force is applied to the driving surface 41. Screwing in the eccentric adjusting screw 43 causes the eccentric shaft 37 to twist due to the unilateral force.

[0096] The eccentric adjustment screw 43 of each eccentric shaft 37 protrudes from the end face of the mass compensation member 16. The eccentric adjustment screw 43 is easily accessible and can be driven to drive the rotation of the eccentric shaft 37. The eccentric adjustment screws 43 are all secured by a locking nut 44 to prevent accidental driving.

[0097] A reaction force is exerted on the mating drive surface 42 by the pressure piece 45 on one side of the eccentric shaft center longitudinal axis E. To this end, the pressure piece 45 is biased against the mating drive surface 42 by a compression spring 46. The compression spring 46 rests on a threaded screw 47. By screwing in or out the threaded screw 47, the biasing force and thus the reaction force can be adjusted.

[0098] The driving surface 41 and the mating driving surface 42 are parallel to each other. The eccentric adjusting screw 43 and the pressure piece 45 are respectively engaged with the opposite sides of the driving surface 41 and the mating driving surface 42 relative to the central longitudinal axis E of the eccentric shaft. Therefore, the reaction force generated by the pressure piece 45 is opposite to the adjustment force generated by the eccentric adjusting screw. The reaction force thus causes the eccentric shaft to rotate in the direction opposite to the rotation direction caused by screwing in the eccentric adjusting screw 43. When the eccentric adjusting screw 43 is screwed in, the reaction force must be overcome to rotate the eccentric shaft. When the eccentric adjusting screw 43 is screwed out, the reaction force causes the eccentric shaft 37 to rotate.

[0099] On the outer surface of the eccentric shaft 37, a limiting recess is also formed, with opposite limiting stops 48 in the circumferential direction of the eccentric shaft 37. A limiting member in the form of a limiting screw 49 is engaged in the limiting recess between the limiting stops 48. The limiting stops 48 interact with the limiting screws 49 to define the maximum rotation angle α of the eccentric shaft 37.

[0100] The adjusting device 36 can simply and accurately set the relative position of the base 15 and the mass compensator 16 by driving the eccentric adjusting screw 43. Once the desired relative position is set, it can be fixed by tightening the clamping screw 34. The adjusting device 36 can be adjusted independently of each other at the opposite axial ends of the circular comb defined in the direction of the axis W. Therefore, the adjustable support mechanism 30 is configured to set the relative position between the base 15 and the mass compensator 16 perpendicular to the axis W to be different at a first axial end from the perspective in the direction of the axis W and at a second axial end opposite to the first axial end from the perspective in the direction of the axis W. Therefore, the desired combing distance d can be set precisely and accurately without taking into account the possible longitudinal inclination of the upper clamp lip 14. The combing radius R can vary along the axis W.

[0101] See also Figures 11 to 13 Another embodiment of the mass compensating member 116 is described. The mass compensating member 116 can be combined with the base body 15 of the previous embodiment to form a circular comb.

[0102] The mass compensating member 116 has a counterweight body 120. The counterweight body 120 is substantially the same as the counterweight body 20 of the mass compensating member 16 of the previous embodiment. The difference is that the stop screw 49 for limiting the rotation of the eccentric shaft is screwed in at the end face, which can be particularly effective from the Fig.13 The local section corresponds to Fig.12 The section planes s1 and s2 are shown. The section plane s1 is located at the level of the limit screw 49, and the section plane s2 is located at the level of the spring pressure piece 61 with external threads. The spring pressure pieces 61 are screwed into the corresponding holes 62 to offset the adjustment force of each adjustment screw 43.

[0103] To attach the mass compensator 116, a fastening screw 63 is passed from below through corresponding holes in the counterweight body 120 and the shaft. The fastening screw 63 is configured as a cylindrical screw. The fastening screw 63 is screwed into a counter-clamp 64. The counter-clamp 64 extends parallel to the axis and is arranged opposite to the mass compensator 116 relative to the shaft in the assembled state. The counter-clamp 64 is connected to the mass compensator 116 via the fastening screw 63.

[0104] Fig.14 Another embodiment of the circular comb 206 is shown. In terms of the configuration of the base 15 and the mass compensation member 16, the circular comb 206 is similar to the aforementioned reference Figures 2 to 10The circular comb 206 is the same as the circular comb 6 described. The circular comb 206 differs from the circular comb 6 only in the configuration of the support mechanism 230. The support mechanism 230 of the circular comb 206 has an eccentric shaft 37, but no eccentric adjustment screws and no pressure pieces to offset them. Except for the limitation of the rotation angle, the eccentric shaft 37 can extend freely in the support mechanism 230. The base 15 can be lifted to adjust its position relative to the mass compensation member 16. As a function of lifting, the eccentric shaft 37 rotates to bring the bayonet protrusion to the corresponding position. Therefore, the eccentric shaft 37 and the bayonet protrusion 38 thereon participate in the setting of the relative position only to the extent that they provide additional guidance for the base 15. In addition, for assembly, the base 15 can be suspended in a matching suspension device formed by the bayonet protrusion 38 using a suspension device configured as a bayonet slit 40.

[0105] refer to Fig.15 Another embodiment of a circular comb 306 is described. The circular comb 306 differs from the aforementioned circular comb 206 in the configuration of the support mechanism 330. The bayonet slot 340, which serves as a suspension device for the base body 315, is dimensioned so that the bayonet protrusion 338 is accommodated therein with clearance. This allows the base body 315 to be suspended on the mass compensator 316 without having to adjust their relative position by rotating the bayonet protrusion 338. Fig.15 In the embodiment of the present invention, the bayonet projection 338 does not have to be mounted on the corresponding eccentric shaft, but can be formed directly on the mating fixing surface 332, for example. This simplifies the structure of the support mechanism. For the linear displacement of the base body relative to the mass compensation part, the base body can be lifted into the correct position when the clamping screw is loosened.

[0106] In the right Fig.15 In a modification of the embodiment, the bayonet protrusion 338 may also be attached to a rotatable eccentric shaft to ensure that adequate relative positioning is achieved regardless of the width of the bayonet slot 340.

[0107] Reference Fig.16 Another embodiment of a circular comb 406 is described. The circular comb 406 differs from the previous circular combs in that the support mechanism 430 has no suspension means on the base 415 and no matching suspension means on the mass compensator 416 for suspending the base 415 during assembly. During assembly, the base 415 is manually held and moved to the desired target position relative to the mass compensator 416. At the desired position, the clamping screw 34 is screwed through the slot into the mass compensator 416 to secure the base 415 by clamping.

[0108] Reference Fig.17Another embodiment of a circular comb 506 is described. The circular comb 506 has a support mechanism 530 with adjustment devices 536 for adjusting the position between the mass compensator 516 and the base body 515. The adjustment devices 536 each include an adjustment screw 65, which passes through and is screwed into a corresponding hole in the counterweight body 520 in the region of the axial end of the mass compensator 516. The screw 65 can be driven from the lower surface of the counterweight body 520 opposite the shaft 5. The screw head 66 of the screw 65 rests on the stop edge 67 of the end cover 25. By screwing in or out the adjustment screw 65, the cover 25 and the base body 515 attached thereto can be raised or lowered. This makes it possible to set the desired relative position between the base body 515 and the mass compensator 516, in particular different relative positions can be set at each axial end. The adjustment screw 65 is a structurally simple and effective adjustment device 536. For fixing by clamping, the clamping screw 34 is tightened after the desired relative position has been reached. The circular comb 506 can otherwise correspond to the circular comb described above. The adjusting screw 65 can be combined in particular with the above-described embodiments of the circular comb, in particular with Figures 14 to 16 The circular combs 206, 306 and 406 are shown combined.

[0109] Reference Fig.18 A further embodiment of a circular comb 606 is described. The support mechanism 630 of the circular comb 606 has an adjustment device 636 in the form of an adjustment screw 665. The adjustment screw 665 is screwed from above into a corresponding hole in the mass compensator 616 at the corresponding axial end. The screw head 68 of the adjustment screw 665 rests on the supporting edge 67 of the corresponding end cover 25. The screw head 68 can be approached and driven from the end face. By screwing in or out the screw 665, the cover 25 and thus the base body 615 can be lowered or raised relative to the mass compensator 616.

[0110] exist Fig.18 The partial cross-sectional view of also shows the hole 69 in the mass compensating member 616, into which the clamping screw 34 is screwed for fixing by clamping.

[0111] In other embodiments, the adjustment device has only one adjustment screw arranged at one of the axial ends. In other embodiments, at least one adjustment screw, which can be driven, in particular from below the mass compensation element, can be arranged at any position along the axis. The at least one adjustment screw can rest on at least one corresponding support edge of the base body, which can be formed, for example, on the inner wall of the groove.

[0112] refer to Figures 19 to 21Another embodiment of a circular comb 706 is described. The support mechanism 730 of the circular comb is configured to allow a base 715 to pivot relative to a mass compensator 716. A joint extension 70 is arranged on a counterweight body 720 of the mass compensator 716. In a plane perpendicular to the axis W, the joint extension 70 has a substantially circular cross section that terminates at a connecting web 71 that connects the joint extension 70 to the counterweight body 720. The joint extension 70 extends parallel to the axis W with a constant cross section. A joint receiving portion 72 extending along the axis W is formed in the base 715. The inner contour of the joint receiving portion 72 corresponds to the outer contour of the joint extension 70. After assembly is completed, the joint extension 70 is retained in the joint receiving portion 72. The joint extension 70 and the joint receiving portion form a rotary joint. Therefore, a pivot axis S parallel to the axis W but laterally offset relative to it is defined.

[0113] The inner surface of the joint receiving portion 72 forms a first fixing surface of the base 715, which is in close contact with the outer surface of the joint extension 70 after assembly. The second fixing surface 74 is formed in the area of ​​the inner wall 729 of the groove opposite to the axis W. The fixing surfaces 73, 74 extend parallel to the axis W. In the normal plane N defined perpendicular to the axis W, the fixing surfaces 73, 74 extend in a curve. The fixing surfaces 73, 74 have different radii of curvature. The fixing surfaces 73, 74 have the same axis, which corresponds to the position of the pivot axis S in the normal plane N defined perpendicular to the axis W. Therefore, the fixing surfaces 73, 74 are at least partially bent into an arc around the pivot axis S. This ensures smooth and controlled pivoting around the pivot axis S.

[0114] The second fixing surface 74 is in close contact with the correspondingly curved counterpart fixing surface 75 of the mass compensating element 716 .

[0115] In the region of the second fixing surface 74, the base body 715 has a slot 35 for passing the clamping screw 34. In the assembled state, the clamping screw 34 is screwed into the hole 69 of the mass compensator 716 to fix the base body 715 to the mass compensator 716 by clamping.

[0116] In order to change the relative position of the base body 715 and the mass compensator 716, the clamping screw 34 can be loosened and then pivoted about the pivot axis S. By pivoting the base body 715 about the pivot axis S relative to the mass compensator 716, the position of the comb teeth 33 is changed. In particular, the combing distance d can be adjusted by changing the combing radius R in this way. After the desired position is reached, the clamping screw 34 can be tightened to clamp the base body 715 relative to the mass compensator 716.

[0117] In the pivotable configuration of the circular comb 706 , the end cover 725 is configured to match the configuration of the basic body 715 , in particular in the region of the joint receptacle 72 .

[0118] The opposing surfaces of the base 715 and the mass compensator 716 in the normal plane N are designed according to different requirements, in particular to form the fixing surfaces 73, 74 or the mating fixing surface 75 of different curvatures and the outer contour of the joint extension 70. This ensures that the base 715 can only be mounted on the mass compensator 716 in a specific predetermined orientation. The fixing surfaces 73, 74 of different curvatures act as orientation means to ensure the desired orientation of the base 715 and the mass compensator 716.

[0119] Reference Fig. 22 Another embodiment of a circular comb 806 is described. The circular comb 806 corresponds substantially to the embodiment of the circular comb 806 of FIG. Figures 19 to 21 The circular comb 706 is described, in particular with regard to the configuration of the base body 715. The circular comb 806 differs only in the configuration of the support mechanism 830. The support mechanism 830 has an adjustment device 836 for adjusting the variable relative position between the base body 715 and the mass compensator 816. For this purpose, an adjustment screw 865 is screwed into the mass compensator 816. The screw head 868 of the adjustment screw 865 rests on a support edge 867 of the end cover 725. The screw head 868 can be operated on the end face to screw in or out the adjustment screw 865. By screwing the adjustment screw 865 in or out of the mass compensator 816, the base body 715 rises or falls in the region of the screw head 868 and is thus pivoted about the pivot axis S. In order to achieve a stable support effect, the support edge 867 is bent according to the pivoting movement.

Claims

1. A circular comb for a carding machine (1) for combing textile fibers and for being attached to a shaft (5) of the carding machine (1) that is rotatable about an axis (W), the circular comb having: a) a base body (15; 315; 415; 515; 615; 715) which carries a combing group (17) on its outer arc-shaped peripheral portion, and b) a mass compensating member (16; 116; 316; 416; 516; 616; 716; 816) configured to be attached to the shaft (5) in a rotationally meshing manner on a side of the shaft (5) opposite to the combing group (17) in a radial direction of the shaft (5), It is characterized in that c) after being mounted on the carding machine (1), an adjustable support mechanism (30; 230; 330; 430; 530; 630; 730; 830) is present between the base body (15; 315; 415; 515; 615; 715) and the mass compensation element (16; 116; 316; 416; 516; 616; 716; 816), c1) the base body (15; 315; 415; 515; 615; 715) and the mass compensation member (16; 116; 316; 416; 516; 616; 716; 816) are in direct contact in some areas, and c2) the base body (15; 315; 415; 515; 615; 715) and the mass compensation member (16; 116; 316; 416; 516; 616; 716; 816) are variable with respect to their position relative to each other perpendicularly to said axis (W), c3) enables the positions of the comb teeth (33) of the combing group (17) to be adjustable.

2. The circular comb according to claim 1, characterized in that The adjustable support mechanism (30; 230; 330; 430; 530; 630) is configured to enable the base (15; 315; 415; 515; 615) to be linearly displaced relative to the mass compensation member (16; 116; 316; 416; 516; 616), in particular, to be linearly displaced in a direction perpendicular to the axis (W).

3. The circular comb according to claim 1 or 2, characterized in that: The adjustable support mechanism (30; 230; 330; 430; 530; 630) is configured to set the relative position between the base (15; 315; 415; 515; 615) and the mass compensation member (16; 116; 316; 416; 516; 616) perpendicular to the axis (W) to be different at the first axial end from the perspective in the direction of the axis (W) and at the second axial end from the perspective in the direction of the axis (W).

4. The circular comb according to claim 1, characterized in that The adjustable support mechanism (730; 830) is configured to enable the base (715) to pivot relative to the mass compensation member (716; 816), in particular to pivot around a pivot axis (S) extending parallel to the axis (W) and arranged laterally offset from the axis (W).

5. A circular comb according to any one of the preceding claims, characterized in that After assembly, the base body (15; 315; 415; 515; 615; 715) only relies on the mass compensation part (16; 116; 316; 416; 516; 616; 716; 816).

6. A circular comb according to any one of the preceding claims, characterized in that The mass compensation element (16; 116; 316; 416; 516; 616; 716; 816) has at least one contact surface (51) for contacting the shaft (5) in an assembled state.

7. A circular comb according to any one of the preceding claims, characterized in that The base (15; 315; 415; 515; 615; 715) has an inner side portion facing the shaft (5), and the inner side portion and the inner wall (29; 729) of the groove together define the groove (28; 728). In the assembled state, there is a gap between the inner wall (29; 729) of the groove of the base (15; 315; 415; 515; 615; 715) and the shaft (5).

8. The circular comb according to claim 7, characterized in that The mass compensation element (16; 116; 316; 416; 516; 616; 716; 816) is at least partially accommodated in the groove (28; 728) in the assembled state.

9. A circular comb according to any one of the preceding claims, characterised in that The base body (15; 315; 415; 515; 615; 715) as a part of the supporting mechanism (30; 230; 330; 430; 530; 630; 730; 830) has at least two fixing surfaces (31; 73, 74) extending parallel to the axis (W), and the base body (15; 315; 415; 515; 615; 715) is in direct and close contact with the mass compensation part (16; 116; 316; 416; 516; 616; 716; 816) in the area of ​​the fixing surfaces (31; 73, 74) in the assembled state, so that the base body (15; 315; 415; 515; 615; 715) on which the combing group (17) is installed is oriented and fixed in the direction of the axis (W).

10. The circular comb according to claim 9, characterized in that The at least two fixing surfaces (31) are flat.

11. The circular comb according to claim 9, characterized in that The at least two fastening surfaces (73, 74) are curved in a plane (N) defined perpendicularly to the axis (W), in particular are curved to different degrees.

12. The circular comb according to claim 11, characterized in that The at least two fixing surfaces (73, 74) have the same axis (S) in the plane (N) defined perpendicularly to the axis (W).

13. A circular comb according to any one of the preceding claims, characterised in that The support mechanism (30; 230; 330; 430; 530; 630; 730; 830) has a releasable fastening device (34) for fixing the variable position between the base (15; 315; 415; 515; 615; 715) and the mass compensation member (16; 116; 316; 416; 516; 616; 716; 816) by clamping.

14. A circular comb according to any one of the preceding claims, characterised in that The support mechanism (730; 830) has an orientation device which ensures the required relative orientation of the base body (715) and the mass compensation element (716; 816) in the assembled state.

15. A circular comb according to any one of the preceding claims, characterised in that The support mechanism (30; 230; 330) has a suspension device (40; 340) on the base body (15; 315) and a matching suspension device (38) on the mass compensation member (16; 116; 316) so as to suspend the base body (15; 315) on the mass compensation member (16; 116; 316) during assembly.

16. The circular comb according to claim 15, characterized in that The suspension device (40; 340) on the base body (15; 315) and the matching suspension device (38) on the mass compensation member (16; 116; 316) participate in the variable positioning of the base body (15; 315) and the mass compensation member (16; 116; 316) relative to each other.

17. A circular comb according to any one of the preceding claims, characterised in that The supporting mechanism (30; 530; 630; 830) has an adjusting device (36; 536; 636; 836) for adjusting a variable relative position between the base body (15; 515; 615; 715) and the mass compensation member (16; 516; 616; 816).

Images