Method for producing a rotary brush, and rotary brush produced according to such a method

Abstract

The invention relates to a method for producing a rotary brush, having the following steps: - providing a plug gauge (5) which can be rotated about a gauge axis (L) and which comprises a closed circumferential outer wall (50), said outer wall (50) having a defined profile in the radial direction, relative to the gauge axis (L), on the inner face of the outer wall along the circumference thereof; - inserting a brush body (1), which can be rotated about a rotational axis (R) and which comprises a base body (10) and a first disc (13), into the plug gauge (5), wherein multiple lamellas (133) are provided which extend outwards from the first disc (13) and parallel to the rotational axis (R); - inserting a plurality of bar-shaped machining means (2) around the circumference (100) of the base body (10) and between the lamellas (133), whereby all of the machining means (2) are laterally guided and extend outwards radially from the inside; - rotating the plug gauge (5) about the gauge axis (L), whereby the machining means (2) are moved outwards until the machining means contact the inner face of the outer wall (50) of the plug gauge (5) and are thus adapted to the profile; - adhering the machining means (2) to the brush body (1); - providing a second disc (4) at least over parts of the machining means (2), wherein the second disc (4) has an outer diameter (41) which equals the outer diameter (131) of the first disc (13); and - rigidly connecting the second disc (4) to the brush body (1).

Description

[0001] METHOD FOR PRODUCING A ROTARY BRUSH AND

[0002] ROTARY BRUSH MANUFACTURED BY SUCH A PROCESS

[0003] TECHNICAL FIELD

[0004] The present invention relates to a method for producing a rotary brush and a rotary brush produced by such a method, in particular a rotary brush with flexible rod-shaped processing means.

[0005] STATE OF THE ART

[0006] Rotary brushes are known from the prior art in which a large number of flexible, rod-shaped processing means are arranged on the circumference of a base body and extend radially outwards from the latter. Conventional flexible, rod-shaped processing means are, for example, bristles, bundles or tufts of bristles, filaments, bundles or tufts of filaments, which have a substantially circular or oval cross-section. The processing means are arranged radially from the outside on the brush body. For example, CH 713 380 A2 shows such a rotary brush in which processing means with a circular cross-section are arranged evenly distributed around the circumference of a brush body and wherein each closed, circumferential row of processing means is arranged between two discs which are fastened to the brush body.The processing tools are inserted radially from the outside between the two discs. This has the disadvantage that either the length of all processing tools must be exactly the same before insertion in order to obtain a brush that is as rotationally symmetrical as possible, or that the processing tools must be trimmed to the same length after insertion. Furthermore, processing tools with a circular or oval cross-section have the disadvantage that their thickness varies across their width, resulting in different brushing properties across the width, which leads to different brushing results.

[0007] DESCRIPTION OF THE INVENTION

[0008] An object of the present invention is to provide a method for producing a rotary brush that allows the use of processing means that do not all have exactly the same length. Preferably, processing means should be used that achieve uniform brushing results across their width.

[0009] This object is achieved by a method for producing a rotary brush having the features of claim 1. Further embodiments of the method, as well as rotary brushes produced by such a method, are defined by the features of further claims. A method according to the invention for producing a rotary brush comprises the steps:

[0010] Providing a stuffing gauge rotatable about a gauge axis with a closed circumferential outer wall, wherein the outer wall has a predefined profile along its circumference on its inner side in the radial direction to the gauge axis;

[0011] Inserting a brush body which is rotatable about a rotational axis, having a cylindrical base body and a first disc, into the stuffing gauge, concentrically to the gauge axis, wherein a plurality of lamellae are provided which are evenly distributed around a circumference of the base body and extend from the first disc, parallel to the rotational axis;

[0012] Inserting a plurality of rod-shaped processing means around the circumference of the base body and between the lamellae, whereby all processing means are guided laterally and extend radially from the inside to the outside;

[0013] Rotating the tamping gauge around the gauge axis, whereby the machining means are moved radially outwards until they hit the inside of the outer wall of the tamping gauge and thus adapt to the profile;

[0014] Bonding the processing means ( 2 ) to the brush body;

[0015] Arranging a second disc, sectionally over the

[0016] Machining means, wherein the second disc has an outer diameter which is equal to a

[0017] Outer diameter of the first disc is ; and

[0018] Firmly connect the second disc to the brush body.

[0019] This process has the advantage that processing tools can be used that do not all have exactly the same length, yet additional trimming of the length of the processing tools is not necessary. Furthermore, this process allows the production of different brush types. Almost any outside diameter, width, and trim length and width can be achieved. A two-component adhesive can be used for bonding, with an adhesive and a hardener, for example Collano A2118 adhesive as component A and Collano A2118 hardener as component B.

[0020] In one design, the processing tools are pressed against the first disc, parallel to the gauge axis, before bonding. This allows the processing tools to be arranged more compactly in the brush body.

[0021] In one design, a stuffing disc is placed on one or more layers of processing media, which is glued to the processing media and the brush body.

[0022] In one embodiment, one or more layers of processing material are pressed against the first disk with the tamping disk. In one embodiment, after bonding, areas of the lamellae that extend beyond the tamping disk in the direction of the rotation axis are removed.

[0023] According to the invention, after bonding, a second disc is arranged in sections over the processing means and firmly connected to the at least one brush body. The second disc has an outer diameter that is equal to the outer diameter of the first disc. The firm connection can be achieved by bonding, using, for example, Loctite 480.

[0024] In one design, the tamping gauge comprises, in an inner area adjacent to the outer wall, a closed, circumferential elevation on which the processing tools rest when inserted. The elevation is flat on top or has slats whose number and orientation match the slats of the brush body.

[0025] In one embodiment, at least one intermediate disc with single-sided or double-sided slats is inserted between the first disc and the stuffing disc. If the slats are arranged on both sides, they can be aligned with one another or they can be offset from one another. If the intermediate disc has slats arranged on one side, recesses can be provided on the side opposite the slats, into which the free ends of the slats of the first disc or the stuffing disc can engage.

[0026] In one embodiment, the profile has one or more of the following properties: a) the profile has no depressions or elevations along the entire circumference of the outer wall on its inside, in particular the profile runs uniformly along the entire circumference of the outer wall on its inside, in particular the profile has a uniform distance from the gauge axis everywhere; b) the profile has jagged bulges and / or notch-shaped indentations (such as jags or notches), in particular at regular intervals along the circumference of the outer wall on its inside; c) the profile has concave indentations and / or convex bulges, in particular at regular intervals along the circumference of the outer wall on its inside;d) the profile has sloping flanks, in particular flanks on the inside running into the outer wall and / or protruding from the outer wall, furthermore in particular at regular intervals along the circumference of the outer wall on its inside; e) the profile is wavy and / or curved, in particular in sections, furthermore in particular at regular intervals along the circumference of the outer wall on its inside; f) the profile runs uniformly or non-uniformly in the direction parallel to the gauge axis;

[0027] The mentioned embodiments of the method can be used in any combination within the scope of the claims, provided they do not contradict one another. A rotary brush according to the invention, produced by a method according to one of the preceding embodiments, comprises a brush body rotatable about a rotational axis and a plurality of flexible processing means. The brush body comprises a disk-shaped or cylindrical base body and a first disk. The processing means are rod-shaped, are arranged around a circumference of the base body and extend radially from the inside to the outside. A plurality of lamellae are provided which are evenly distributed around the circumference of the base body and extend from the first disk parallel to the rotational axis.The processing means are arranged between the lamellae, with one or more layers of processing means being arranged in sections in the direction of the rotation axis between the first disc and a second disc of the same outer diameter. Outer free ends of the processing means are spaced from the rotation axis by a distance corresponding to a predefined profile extending around the brush body, and inner free ends of the processing means are spaced from the rotation axis at different distances.

[0028] In one embodiment, the first disc and the second disc are arranged or attached to the base body. Alternatively, the first disc is formed integrally with the base body, and the second disc is arranged or attached to the base body. The brush body, or the brush body and the first disc with the lamellae, can be manufactured in a single step using a 3D printing process. This allows virtually any lamella shape to be produced, allowing virtually any cross-section of the processing means to be realized.

[0029] In one embodiment, a stuffing disc is provided between the processing means and the second disc, which rests in sections on the lamellae and which rests in sections on the processing means.

[0030] In one embodiment, the lamellae of the first disc extend towards the stuffing disc and have pins which extend through corresponding recesses in the stuffing disc.

[0031] In one embodiment, some or all of the slats are connected to one another. In this case, the slats are part of an insert element that is glued together with the first disc, the base body, and the processing means. Alternatively, the slats are formed integrally with the first disc.

[0032] In one embodiment, the first disc comprises, in a region of its outer diameter, a closed, circumferential elevation which extends parallel to the axis of rotation in the direction of the stuffing disc. The stuffing disc comprises, in a region of its outer diameter, a closed, circumferential elevation which extends parallel to the axis of rotation in the direction of the first disc. The processing means are arranged between the elevation of the first disc and between the elevation of the stuffing disc. In one embodiment, the lamellae of the first disc are provided in the region of the elevation.

[0033] In one embodiment, the processing means comprise filaments or tufts of filaments, which lie against one another in the direction of the axis of rotation or are separated from one another by spacers. The filaments or tufts of filaments can be arranged one above the other in multiple layers. The spacers of a layer can be independent of one another or some spacers or all spacers of a layer can be connected to one another. In this case, the spacers of a layer form an annular disk which, in a projection direction parallel to the axis of rotation, has a floor plan which essentially corresponds to that of the stuffing disk. Alternatively or additionally, an intermediate disk can be provided between two adjacent layers of processing means. The intermediate disk can comprise lamellae which extend parallel to the axis of rotation.Recesses are formed between these lamellae, into which processing means can be inserted. The lamellae can be provided on one side only in the direction of the axis of rotation, or they can be provided on both sides. The lamellae on the two sides can be aligned with one another in the circumferential direction, or they can be offset from one another. The recesses between the lamellae on each side are each aligned with the processing means of the adjacent layer of processing means. In one embodiment, the processing means have a round, oval, triangular, trapezoidal or rectangular cross-section transverse to their longitudinal direction, and the lamellae and the stuffing disc have complementary contours.

[0034] In one embodiment, individual, several or all bars of the processing means along an outer circumference of the rotary brush have one or more of the following properties: a) an equal distance from the axis of rotation along the outer free end; b) serration(s) or notch(s) along the outer free end; c) concave or convex shape along the outer free end; d) an oblique flank along the outer free end; e) a wavy and / or curved edge along the outer free end; f) a uniform or non-uniform course in the direction parallel to the gauge axis.

[0035] The mentioned embodiments of the rotary brush can be used in any combination within the scope of the claims, provided they do not contradict each other.

[0036] A rotary brush set according to the invention, comprising several rotary brushes according to one of the preceding embodiments, which are arranged adjacent to one another and with congruent rotation axes. BRIEF DESCRIPTION OF THE FIGURES

[0037] Examples of embodiments of the present invention are explained in more detail below with reference to figures. These are for illustrative purposes only and are not to be interpreted in a restrictive manner.

[0038] Fig. 1 is an exploded perspective view of first embodiments of components involved in the method according to the invention for producing a rotary brush;

[0039] Fig. 2 is a partial sectional view through the assembly of the components of Figure 1;

[0040] Fig. 3 is a perspective partial sectional view through the assembly of some components of Figure 1;

[0041] Fig. 4 is an exploded perspective view of second embodiments of components involved in the method of manufacturing a rotary brush according to the invention;

[0042] Fig. 5 is a partial sectional view through the assembly of the components of Figure 4;

[0043] Fig. 6 is a detailed view of Figure 5;

[0044] Fig. 7 is a partial sectional view through a processing means of a brush with components of the second embodiment;

[0045] Fig. 8 is a partial sectional view through a blade of a brush with components of the second embodiment; Fig. 9 is a partial sectional view through a blade of a

[0046] Brush with components of a third embodiment;

[0047] Fig. 10 is a perspective partial sectional view through a processing means of the brush of Fig. 9, before gluing;

[0048] Fig. 11 is a perspective partial sectional view through a processing means of a brush with components of a fourth embodiment; and

[0049] Figs. 12 to 20 are schematic representations of developed sectional views through the processing means of different embodiments;

[0050] Fig. 21 schematic view from above of a stuffing gauge which is involved in the method according to the invention for producing a rotary brush;

[0051] Figs 22 a ) to f ) are schematic representations of sections of the profile on the inside of the outer wall of the tamping gauge of Figure 21 and corresponding outer free ends of a single rod of the machining means .

[0052] DETAILED DESCRIPTION OF THE INVENTION

[0053] Figure 1 shows a perspective exploded view of first embodiments of components involved in the inventive method for producing a rotary brush. On a centrifugal mandrel 7, a disc-shaped

[0054] Tamping gauge 5 with a closed outer wall

[0055] 50, wherein the centrifugal mandrel 7 and the stuffing gauge 5 are rotatable about a gauge axis L, with a drive not shown. A brush body 1 with a cylindrical base body 10 and a first disk 13, which are rotationally symmetrical with respect to a rotation axis R, is inserted into the stuffing gauge 5. In the inserted state, the rotation axis R is collinear with the gauge axis L. The brush body 1, together with the stuffing gauge 5 is fastened to the centrifugal mandrel 7 with a fastening 8. In a region of the outer edge of the first disk 13, slats 133 are formed, which extend upwards from the first disk 13, parallel to the rotation axis R. At the upper free end of the slats 133, first pins 134 and second pins 135 are formed, which extend further upwards. A plurality of processing means 2 are inserted from above between the slats 133.After the processing means 2 have been inserted, a tamping disk 3 is placed onto the processing means 2 and the brush body 1. The tamping disk 3 comprises first recesses 34 and second recesses 35, which correspond in number and orientation to the pins 134, 135 of the lamellae 133. After the tamping disk 3 has been placed in place, the first pins 134 protrude through the first recesses 34 and the second pins 135 through the second recesses 35. Following the placement of the tamping disk 3, the tamping gauge 5 is rotated about the gauge axis L, whereby the processing means are moved radially outwards until they strike the outer wall 50 of the tamping gauge 5. The processing means 2 are then glued to the brush body 1 and the tamping disk 3. After gluing, the pins 134, 135 projecting over the stuffing disc 3 are removed and a second disc 4 is attached to the stuffing disc 3 as a cover disc.

[0056] Figure 2 shows a partial sectional view through the assembly of the components of Figure 1 and Figure 3 shows a perspective partial sectional view through the assembly of some of the components of Figure 1. The centrifugal mandrel 7 comprises a cylindrical body 70 which has a shoulder 71 and fastening receptacles 72 at its upper free end. The fastening 8 comprises a circular disk-shaped plate 80 and fastening means 81. Screws 81 are shown which are screwed into corresponding threaded holes 72 of the centrifugal mandrel 7 in order to clamp the stuffing gauge 5 together with the brush body 1 onto the centrifugal mandrel 7. The outer wall 50 of the stuffing gauge 5 tapers inwards in diameter in an area above the processing means 2. In an inner area adjoining the outer wall 50, a closed, circumferential elevation 51 is provided, which is aligned with a corresponding elevation 132 of the first pane 13.The stuffing gauge 5 comprises a central bore 52, around which a closed, circumferential collar 53 is provided. The brush body 1 is centered in the stuffing gauge 5 by the collar 53. The brush body 1 comprises a cylindrical base body 10 with a central bore 14, a circumference 100, or a jacket surface 100, a lower first end face 11 and an upper second end face 12. A first disk 13 is formed integrally with the base body 10, flush with the first end face 11. The first disk 13 has an inner diameter 130, which corresponds to the circumference of the base body 100, and an outer diameter 131. In a region of the first disc 13 adjoining the outer diameter 131, a closed circumferential elevation 132 is formed, which extends parallel to the axis of rotation R in the direction of the second end face 12 of the brush body 1.Lamellae 133 are evenly distributed along the circumference of the elevation 132. Examples of the lamellae 133 are shown in Figures 8 and 9. The lamellae 133 extend from the elevation 132 parallel to the axis of rotation R in the direction of the second end face 12 of the brush body 1 and beyond this. At the upper free end of each lamella, a first pin 134 and a second pin 135 are formed, the first pin 134 being arranged on a side of the lamellae 133 facing towards the base body 10 and the second pin 135 being arranged on a side of the lamellae 133 facing away from the base body 10. An inner surface of the slats 133 is aligned with an inner surface of the elevation 132 and an outer surface of the slats is spaced from the outer diameter 131 of the first disc 13.The base body 10 is provided with four filling channels 15, evenly distributed around the circumference, which extend at an angle from the second end face 12 to the lateral surface, or to the circumference 100. Machining means 2 are arranged between the lamellae 133 and on the elevation 132. They extend from an area within the elevation.

[0057] 132 to an area outside the elevation 132 . The processing means 2 have a rectangular cross-section transverse to their longitudinal direction . A tamping disk 3 lies in the area of ​​its outer circumference partly on the processing means 2 and partly on the lamellae 133 . With its inner diameter 30, the tamping disk 3 lies on a closed circumferential shoulder 120 on the base body 10 . The upper surface of the tamping disk 3 is flush with the second end face 12 of the base body 10 . A closed circumferential elevation 32 is formed in an outer diameter 31 of the tamping disk 3 and extends parallel to the axis of rotation R in the direction of the first end face 11 of the brush body 1 . The first pins 134 of the lamellae 133 protrude through corresponding first recesses 34 of the stuffing disc 3 and the second pins 135 of the lamellae 133 protrude through corresponding second recesses 35 of the stuffing disc 3.The first recesses 34 are designed as closed slots and the second recesses 35 are designed as slots open to the outside. In the area of ​​the first and second recesses there is a closed, circumferential shoulder 33. After the stuffing disk 3 has been placed in place, the stuffing gauge 5 is rotated, whereby the processing means 2 are moved radially outwards until they strike an inner surface with an inner diameter 500 of the outer wall 50 of the stuffing gauge 5. Adhesive can be introduced through the filling channels 15 into the area between the base body 10, the first disk 13, the processing means 2 and the stuffing disk 3. After gluing, the areas of the pins which project beyond the shoulder 33 of the stuffing disk 3 are removed. A second disk 4 is then fastened to the shoulder 33 of the stuffing disk 3 as a cover disk.The second disc 4 has an inner diameter 40 which is essentially complementary to an inner diameter of the shoulder 33 of the tamping disc 3 and an outer diameter 41 which is the same size as the outer diameter 131 of the first disc 13. In the region of the outer diameter 41, the second disc has a closed, circumferential elevation 42 which extends parallel to the axis of rotation R in the direction of the first disc 13. The elevation 42 of the second disc 4 completely covers the tamping disc 3 laterally and outwards. The free end of the elevation 42 of the second disc 4 is flush with the elevation 32 of the tamping disc 3 and rests on the processing means 2.

[0058] Figure 4 shows a perspective exploded view of second embodiments of components which are involved in the inventive method for producing a rotary brush, Figure 5 shows a partial sectional view through the assembly of the components of Figure 4 and Figure 6 shows a detailed view of Figure 5. In contrast to the first embodiment, the centrifugal mandrel 7 has the shape of a truncated cone, the outer wall 50 of the stuffing gauge 5 has a constant inner diameter 500, in the area of ​​the elevation 51 of the stuffing gauge 5

[0059] Slats 510 are provided, the base body 10 has no

[0060] Filling channels 15 , the stuffing disc 3 lies only on the

[0061] Lamellas 133 of the first disk 13 and on the processing means 2 and a support ring 6 is provided which can be clamped to the stuffing gauge 5 in the direction of the gauge axis L. The lamellae 510 of the stuffing gauge 5 correspond in number and orientation to the lamellae 133 of the first disk 13. The upper free ends of all lamellae 510 are aligned with one another and lie in a single plane. The stuffing disk 3 does not comprise an upper recess and its upper surface is aligned with the shoulder 120 in the second end face 12 of the base body 10. The support ring 6 is disk-shaped, with an inner diameter 60 and an outer diameter 61. In the assembled state, the inner diameter 60 of the support ring 6 lies between the first pin 134 and the second pin 135 of the lamellae 133 of the first disc 13. The outer diameter 61 of the support ring 6 is smaller than the inner diameter 500 of the outer wall 50 of the stuffing gauge 5.Clamping device receptacles 64 are arranged evenly distributed around the outer diameter 61 of the support ring 6. Matching clamping device receptacles 54 are arranged evenly distributed around the outer wall 50 of the stuffing gauge 5. The support ring 6 rests with its clamping device receptacles 64 on the outer wall 50 of the stuffing gauge 5. The support ring 6 comprises a first contact surface 62 with which it rests on the processing means 2 and it comprises a second contact surface 63 with which it rests on the stuffing disk 3. The two contact surfaces 62, 63 are spaced from one another in the direction of the gauge axis L by the thickness of the stuffing disk 3. In the first contact surface 62 there is provided a continuously circumferential first groove 620 into which the slats 510 of the stuffing gauge 5 can be inserted unhindered during assembly.In the second contact surface 63, a closed circumferential second groove 630 is provided, into which the second pins 135 of the lamellae 133 of the first disc 13 can be inserted during assembly.

[0062] Figure 7 shows a partial sectional view through a processing means 2 of a brush with components of the second embodiment. The shoulder 120 of the base body 10 extends almost over the entire second end face 12, resulting in a closed, circumferential collar around the bore 14. In this embodiment, adhesive can be introduced from above into the space between the base body 10, the first disk 13 and the processing means 2. After bonding, parts projecting beyond the stuffing disk 3 and the shoulder 120 are removed. In addition to the pins, adhesive residues can also be removed. The inner diameter 40 of the second disk 40 corresponds to the outer diameter of this collar. The upper surface of the second disk 4 is flush with the second end face 12 and the lower surface of the second disk 4 rests on the shoulder 120 and is flush with the upper surface of the stuffing disk 13.

[0063] Figure 8 shows a partial sectional view through a lamella 133 of a brush with components of the second embodiment. In the finished brush, the lamella 133 extends from the elevation 132 of the first disc 13 to the elevation 32 of the stuffing disc 3 and the first and second pins 134, 135 extend through the

[0064] Stuffing disc 3 to the second disc 4 . Figure 9 shows a partial sectional view through a lamella 133 of a brush with components of a third embodiment . In this embodiment, the

[0065] Lamellae 133 have a small height compared to the height of the pins 134, 135. The processing means 2 comprise filaments 20 which are separated from one another by spacers 21 in the direction of the rotation axis R. Such filaments 20 and spacers 21 can be used with all embodiments. The filaments 20 extend from within the inner diameter 30 of the stuffing disk 3 in the radial direction outwards to beyond the outer diameter 131 of the first disk 13 or the equally large outer diameter 41 of the second disk 4. The spacers 21 extend from the inner diameter 30 of the stuffing disk 3 in the radial direction outwards to the outer diameter 131, 41 of the first and second disks 13, 4. The spacers 21 of a layer are connected to one another, whereby they have a plan view in a projection parallel to the rotation axis R which is essentially identical to a corresponding plan view of the stuffing disc 3.Only the outer diameter of the spacers 21 is slightly larger than the outer diameter of the stuffing disc 3. Such annular disc-shaped spacers are also shown in Figure 10.

[0066] Figure 11 shows a perspective partial sectional view through a processing means 2 of a brush with components of a fourth embodiment. The processing means 2 comprise filaments 20, between which spacers 21 are arranged that are separated from one another. Before being inserted between the lamellae, bundles comprising the filaments 20 and the spacers are prefabricated. These processing means 2 can also be used with all embodiments.

[0067] Figure 12 shows a schematic representation of a developed sectional view through the processing means 2 of the brushes of Figures 1 to 11, wherein the processing means 2 have a rectangular cross-section. In the middle, a general processing means 2 is shown, which includes the two adjacent variants. On the left-hand side, a processing means 2 is shown which only includes filaments 20, and on the right-hand side, one which includes several layers of filaments 20 and spacers 21. Two or more spacers 21 can be provided.

[0068] Figure 13 shows slats 133 with trapezoidal cross-sections, resulting in trapezoidal recesses between the slats 133, in which the processing means 2 can be arranged, resulting in processing means 2 with trapezoidal cross-sections. Figure 14 shows processing means 2 with triangular cross-sections, and Figure 15 shows processing means 2 with U-shaped cross-sections.

[0069] Figure 16 shows processing means 2 with an oval cross-section, wherein the lamellae 133 of the first disc 13 have complementary cross-sections and wherein the lamellae 36 of the stuffing disc 3 have complementary cross-sections which are aligned with the lamellae 133 of the first disc 13. Figure 17 shows two layers of processing means 2 with circular cross-sections, which are arranged parallel to one another, wherein an intermediate disc 22 is provided between the two layers. The lamellae 133 of the first disc 13, the lamellae 220 on both sides of the intermediate disc 22 and the lamellae 36 of the stuffing disc 3 are aligned with one another.

[0070] Figure 18 shows two layers of mutually offset processing means 2 with circular cross-sections. An intermediate disc 22 with lamellae 220 on both sides is provided between the two layers of processing means 2, with the lamellae 220 of the side of the intermediate disc 22 facing the first disc 13 being offset from the lamellae 220 of the side facing the stuffing disc 3.

[0071] Figure 19 shows two layers of processing means 2 with trapezoidal cross-sections that are parallel to one another. The lamellae 133 of the first disk 13 and the lamellae 220 of the intermediate disk 22, which are formed on one side, have trapezoidal cross-sections, resulting in processing means 2 with trapezoidal cross-sections. The lamellae 133 of the first disk 13 are aligned with the lamellae 220 of the intermediate disk 22. On the side opposite the lamellae 220 of the intermediate disk 22, recesses 221 are provided that are aligned with the lamellae 133 of the first disk 13 and in which the free ends of the lamellae 133 of the first disk 13 engage. Figure 20 shows two layers of mutually symmetrical layers of processing means 2 with trapezoidal cross-sections.The lamellae 133 of the first disc 13 are trapezoidal in shape and the lamellae 220 of the intermediate disc 22 are trapezoidal in shape and symmetrical with respect to a brush center plane to the lamellae 133 of the first disc 13.

[0072] Figure 21 shows a schematic view from above of a stuffing gauge 5 (i.e. the gauge axis L runs perpendicular to the plane of the view shown). The stuffing gauge 5 has a closed circumferential outer wall 50. The stuffing gauge 5 consists of a (slinger) disc with an external (slinger) ring, whereby these can be designed as a one-piece or two-piece assembly, whereby in the latter case the (slinger) ring is mounted on the (slinger) disc, e.g. glued or screwed. The inner side I of the outer wall 50 has a predefined profile P along its circumference (indicated by the dashed double arrow) in the radial direction to the gauge axis L. This means that the inner side I has depressions and / or elevations (like a terrain profile) into which the machining means 2 can be inserted during turning (or machining).Rotating / spinning) the darning gauge 5 is pushed / pressed in (by centrifugal force) so that the individual bristles, bristle bundles or tufts, filaments, filament bundles or tufts of the processing means 2 adapt exactly to the profile P. The profile P can be imagined as an internal "tire profile" (in an "inverted" tire).

[0073] Tires). Figures 22 a) to f) schematically show small sections (outlined by dotted lines in Fig. 21 as an example) of the profile P on the inner side I of the outer wall 50 of the tamping gauge 5 of Fig. 21 as well as corresponding outer free ends of an individual rod of the processing means 2. In detail, these are, by way of example: a) a section of a profile P which runs uniformly, and a corresponding outer end of an individual rod; b) a section of a profile P with a notch i) or a serration ii) and a corresponding outer end of an individual rod with a serration i) or a notch ii); c) a section of a profile P with a convex bulge i) or concave indentation ii) and a corresponding concave i) or convex ii) shaped outer end of an individual rod; d) a section of a profile P with a positive i) ornegative ii) bevelled flank and a correspondingly shaped outer end of a single bar; e) a section of a profile P with a wavy edge and a correspondingly shaped outer end of a single bar; f) a section of a profile P with a curved edge (indented i) and bulged ii) ) and a correspondingly shaped outer end of a single bar . The profile can be uniform or non-uniform in the direction parallel to the gauge axis L. This means that superimposed regions of the profile can also be different. An example of this would be a spiral / helix / screw-shaped or zigzag-shaped profile, where the profile is rotated or translated in the direction parallel to the gauge axis L (i.e. from bottom to top or vice versa).

[0074] The profile P can, for example, be formed along the circumference of the inner side I of the outer wall 50 of the tamping gauge 5 (in the

[0075] (sling) ring) can be milled (e.g. from metal or plastic). Alternatively, the stuffing gauge 5 can be produced using an additive manufacturing process or a 3D

[0076] Printing process can be manufactured in one piece or only the (sling) ring), e.g. from a plastic filament,

[0077] Metal powder (using laser sintering) or plastic resin

[0078] (such as photopolymers, where the photosensitive material is selectively cured by laser or (UV) light).

[0079] LIST OF REFERENCE SYMBOLS

[0080] 1 brush body 40 inner diameter

[0081] 10 base body 41 outer diameter

[0082] 100 Scope 42 Increase

[0083] 11 first end face 5 tamping gauge

[0084] 12 second front face 50 outer wall

[0085] 120 heel 500 inner diameter

[0086] 13 first disc 51 increase

[0087] 130 inner diameter 510 slat

[0088] 131 outer diameter 52 bore

[0089] 132 Raise 53 Collar

[0090] 133 slat 54 clamping device holder

[0091] 134 first pin 6 support ring

[0092] 135 second pin 60 inner diameter

[0093] 14 bore 61 outer diameter

[0094] 15 Filling channel 62 first contact surface

[0095] 2 machining tools 620 first groove

[0096] 20 Filament 63 second contact surface

[0097] 21 spacer 630 second groove

[0098] 22 Intermediate disc 64 Clamping device holder

[0099] 220 slat 7 centrifugal mandrel

[0100] 221 Recess 70 Body

[0101] 3 tamping disc 71 paragraph

[0102] 30 inner diameter 72 mounting bracket

[0103] 31 outer diameter 8 fastening

[0104] 32 elevation 80 plate

[0105] 33 Paragraph 81 Fasteners

[0106] 34 first recess I inside

[0107] 35 second recess L gauge axis

[0108] 36 Slat P Profile

[0109] 4 second disc R rotation axis

Claims

PATENT CLAIMS 1. A method for producing a rotary brush, comprising the steps of: Providing a stuffing gauge (5) which is rotatable about a gauge axis (L) and has a closed, circumferential outer wall (50), wherein the outer wall (50) has a predefined profile (P) along its circumference on its inner side (I) in the radial direction to the gauge axis (L); Inserting a brush body (1) which is rotatable about a rotation axis (R), with a cylindrical base body (10) and with a first disc (13), into the stuffing gauge (5), concentric to the gauge axis (L), wherein several around a circumference (100) of the base body (10) uniformly distributed slats (133) are provided which extend from the first disc (13) parallel to the axis of rotation (R); Inserting a plurality of rod-shaped processing means (2) around the circumference (100) of the base body (10) and between the lamellae (133), whereby all processing means (2) are guided laterally and extend radially from the inside to the outside; Rotating the tamping gauge (5) about the gauge axis (L), whereby the processing means (2) are moved radially outwards until they strike the inner side (50') of the outer wall (50) of the tamping gauge (5) and thereby adapt to the profile (P); Bonding the processing means (2) to the brush body (1); Arranging a second disc (4) in sections above the processing means (2), wherein the second disc (4) has an outer diameter (41) which is equal to an outer diameter (131) of the first disc (13); and Firmly connect the second disc (4) to the brush body (1).

2. Method according to claim 1, wherein the processing means (2) are pressed against the first disc (13) parallel to the gauge axis (L) before the bonding.

3. Method according to claim 1 or 2, wherein the plurality of processing means (2) comprises one or more layers of processing means (2) onto which, before bonding the processing means (2) to the brush body (1) a stuffing disc (3) is placed on top, which is glued to the processing means (2) and the brush body (1).

4. Method according to claim 3, wherein the one or more layers of processing means (2) before bonding the processing means (2) to the stuffing disc (3) is or are pressed against the first disc (13).

5. Method according to claim 3 or 4, wherein after the bonding, areas of the lamellae (133) which project beyond the stuffing disc (3) in the direction of the rotation axis (R) are removed.

6. Method according to one of claims 1 to 5, wherein the stuffing gauge (5) comprises, in an inner region adjoining the outer wall (50), a closed circumferential elevation (51) on which the processing means (2) rest when inserted, wherein the elevation (51) is flat at the top or wherein the elevation (51) has lamellae (510) at the top which correspond in number and orientation to the lamellae (133) of the brush body (1).

7. Method according to one of claims 3 to 6, wherein at least one intermediate disc (22) with single-sided or double-sided lamellae (220) is inserted between the first disc (13) and the stuffing disc (3).

8. Rotary brush, manufactured according to a method according to one of claims 1 to 7, with a brush body (1) rotatable about a rotation axis (R) and a plurality of flexible processing means (2), wherein the brush body (1) comprises a cylindrical base body (10) and a first disc (13), wherein the processing means (2) are rod-shaped in order to a circumference (100) of the base body (10) and extend radially from the inside to the outside, wherein a plurality of lamellae (133) are provided which are evenly distributed around the circumference (100) of the base body (10), which extend from the first disc (13) parallel to the axis of rotation (R), and wherein the processing means (2) are arranged between the lamellae (133), wherein one or more layers of processing means (2) are arranged in the direction of the axis of rotation (R) in sections between the first disc (13) and a second disc (4) with the same outer diameter, characterized in that outer free ends of the processing means (2) have a distance from the axis of rotation (R) which corresponds to a predefined profile (P) running around the brush body (1), and that inner free ends of the processing means (2) have different distances from the axis of rotation (R).

9. Rotary brush according to claim 8, wherein the first disc (13) and the second disc are arranged on the base body (10) or wherein the first disc (13) is formed integrally with the base body (10) and wherein the second disc (4) is arranged on the base body (10).

10. Rotary brush according to claim 9, wherein a stuffing disc (3) is provided between the processing means (2) and the second disc (4), which rests in sections on the slats (133) and which rests in sections on the processing means (2).

11. Rotary brush according to claim 10, wherein the lamellae (133) extend towards the stuffing disc (3) and have pins (134; 135) which extend through corresponding recesses (34; 35) of the stuffing disc (3).

12. Rotary brush according to one of claims 8 to 11, wherein some of the lamellae (133) or all of the lamellae (133) are connected to one another or wherein the lamellae (133) are formed together in one piece with the first disc.

13. Rotary brush according to one of claims 10 to 12, wherein the first disc (13) comprises in a region of its outer diameter (131) a closed circumferential elevation (132) which extends parallel to the axis of rotation (R) in the direction of the tamping disc (3), wherein the tamping disc (3) comprises in a region of its outer diameter (31) a closed circumferential elevation (32) which extends parallel to the axis of rotation (R) in the direction of the first disc (13), and wherein the processing means (2) are arranged between the elevation (132) of the first disc (13) and between the elevation (32) of the tamping disc (3).

14. Rotary brush according to claim 13, wherein the lamellae (133) are provided in the area of the elevation (132).

15. Rotary brush according to one of claims 8 to 14, wherein the processing means (2) comprise filaments (20) or tufts of filaments (20), which are adjacent to one another in the direction of the rotation axis (R) or are separated from one another by spacers (21).

16. Rotary brush according to one of claims 8 to 15, wherein the processing means (2) have a round, oval or rectangular cross-section transverse to their longitudinal direction and the lamellae (133) and the stuffing disc (3) have contours complementary thereto.

17. A rotary brush set comprising a plurality of rotary brushes according to one of claims 8 to 16, which are arranged adjacent to one another and with congruent axes of rotation (R).

18. Method according to one of claims 1 to 7, wherein the profile (P) has one or more of the following properties: a) the profile (P) has no depressions or elevations along the entire circumference of the outer wall (50) on its inner side (I), in particular the profile (P) runs along the entire circumference the outer wall (50) is uniform on its inner side (I), in particular the profile (P) is at a uniform distance from the gauge axis (L) everywhere; b) the profile (P) has jagged bulges and / or notch-shaped indentations, in particular at regular intervals along the circumference of the outer wall (50) on its inner side (I); c) the profile (P) has concave indentations and / or convex bulges, in particular at regular intervals along the circumference of the outer wall (50) on its inner side (I); d) the profile (P) has oblique flanks, in particular on the inner side (I) flanks extending into the outer wall (50) and / or protruding from the outer wall (50), furthermore in particular at regular intervals along the circumference of the outer wall (50) on its inner side (I);e) the profile (P) is wavy and / or curved, in particular in sections, further in particular at regular intervals along the circumference of the outer wall (50) on its inner side (I); f) the profile (P) runs uniformly or irregularly in the direction parallel to the gauge axis (L); 19. Rotary brush according to one of claims 8 to 16, wherein along an outer circumference of the rotary brush individual, several or all bars of the processing means (2) have one or more of the following properties: a) an equal distance from the axis of rotation (R) along the outer free end; b) serration(s) or notch(s) along the outer free end; c) concave or convex shape along the outer free end; d) an oblique flank along the outer free end; e) a wavy and / or curved edge along the outer free end; f) a uniform or non-uniform course in the direction parallel to the gauge axis (L).

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