Drive device for a machining tool of a mechanical pressing device, machining unit, and mechanical pressing device comprising such a drive device
Patent Information
- Application Number
- PCT/EP2026/057516
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2025-03-28
- Filing Date
- 2026-03-17
- Publication Date
- 2026-10-01
Smart Images
Figure EP2026057516_01102026_PF_FP_ABST
Abstract
Description
[0001] Applicant:
[0002] FELSS Systems GmbH
[0003] Dieselstrasse 2
[0004] 75203 Königsbach-Stein
[0005] Germany
[0006] Representative:
[0007] KOHLER. SCHMID FURNITURE
[0008] patent attorneys
[0009] limited liability partnership
[0010] Gropiusplatz 10
[0011] 70563 Stuttgart
[0012] Germany
[0013] Drive device for a machining tool of a machine press device as well as machining unit and machine press device with such a drive device
[0014] The invention relates to a drive device for actuating a processing tool of a machine press for material processing, comprising a drive unit and a press ram.
[0015] • wherein the drive unit comprises a drive motor and a mechanical transmission arranged between the drive motor and the press ram,
[0016] • wherein the press ram can be driven by the drive unit with a working stroke to actuate the machining tool,
[0017] • wherein the transmission of the drive unit comprises as gear wheels a central gear with a central gear axis, an outer ring gear with a ring gear axis coinciding with the central gear axis, and at least one intermediate gear arranged radially between the central gear and the outer ring gear with an intermediate gear axis that runs parallel to the central gear axis and the ring gear axis,
[0018] FELSS Systems GmbH 17.03.2026 SP14110PCT - wherein the central gear is in contact at an outer circumferential surface of the central gear with an outer circumferential surface of the intermediate gear and the intermediate gear is in contact at the outer circumferential surface of the intermediate gear with an inner circumferential surface of the outer ring gear, which is provided on a ring gear wall and runs coaxially with the ring gear axis,
[0019] - wherein the central wheel is mounted in a fixed position on a support structure of the drive device and is rotatable about the central wheel axis,
[0020] - wherein the intermediate wheel is mounted in a fixed position and rotatably about the intermediate wheel axis on an intermediate wheel carrier, and the intermediate wheel carrier is rotatable together with the intermediate wheel about a carrier axis running parallel to the intermediate wheel axis and
[0021] - wherein the outer ring gear is fixed in position on the support structure of the drive device and is arranged in a rotationally fixed manner around the ring gear axis,
[0022] • wherein the outer ring gear is provided with a wall opening in which the press ram is movably received for the execution of the working stroke directed away from the gearbox of the drive unit, wherein the press ram can be arranged in a stroke-ready position along the stroke path of the working stroke, in which the press ram projects with a gearbox-side end opposite the inner circumferential surface of the outer ring gear and
[0023] • wherein the press ram, arranged in the stroke-ready position, can be acted upon at the gearbox-side end by the intermediate wheel performing the rotary motion to execute the working stroke.
[0024] The invention also relates to a processing unit of a machine press for material processing equipped with a drive device of the aforementioned type, and to a machine press for material processing with such a processing unit.
[0025] A generic mechanical press device is known from US 514,147 A and is designed as a press for forming workpieces. The tool used for workpiece machining on the previously known press is actuated by means of a press ram, which is driven by the drive motor of a drive-
[0026] FELSS Systems GmbH 17.03.2026 SP14110PCT The press unit is driven by a gearbox. A gearbox is provided between the drive motor and the press ram for power transmission. A disc is attached to one end of a shaft driven by a rotary motion. This disc, in turn, rotatably mounts hammer rollers on pivot pins. When the disc is driven by the shaft with a rotary motion around its axis, the hammer rollers roll on a loosely mounted central roller and also on an inner circumferential surface of a bushing. During their rotation, the hammer rollers strike the ends of a ram facing the hammer rollers. The ram is movably guided in a wall opening of the bushing and is equipped with a forming tool at its end furthest from the hammer rollers.
[0027] In the case of further prior art, mechanical transmissions include eccentric gears or – as in the case of the rotary kneading machine according to DE 10 2010 014 602 Al – transmissions with a motor-driven external rotor ring, which in turn drives an annular roller cage with a rotary motion around a working chamber of the machine. The roller cage is equipped with pressure rollers that move together with the roller cage on a circular path concentric with the working chamber of the machine. Hammer plungers are movably guided in the radial direction of the axis of the working chamber of the machine on a ram guide arranged between the working chamber of the machine and the roller cage. In a starting position, the hammer plungers project with a plunger end on the pressure roller side into the path of the rotating pressure rollers.At the protruding end of the ram, the hammer rams are acted upon by the pressure rollers moving along their orbit, thereby moving them radially towards the work area with a working stroke. In doing so, the ends of the hammer rams on the work area side act upon the rotary kneading tools of the machine, causing the rotary kneading tools to form a workpiece positioned for forming within the machine's work area.
[0028] The object of the present invention is to provide a compact and flexibly configurable drive for a mechanical press device as well as a mechanical press device with such a drive.
[0029] FELSS Systems GmbH 17.03.2026 SP14110PCT According to the invention, this problem is solved by the drive device according to claim 1, by the machining unit according to claim 10 and by the machine press device according to claim 17.
[0030] According to claim 1, a transmission arranged between a drive motor and a press ram is designed as a planetary gear system. The gears consist of a central gear, an outer ring gear, and at least one intermediate gear arranged radially between the central gear and the ring gear. The intermediate gear is in contact on its outer circumferential surface with an outer circumferential surface of the central gear on one side and with an inner circumferential surface of the ring gear on the other. The central gear is mounted fixedly on a support structure of the drive device and rotatably about a central gear axis. The intermediate gear is mounted fixedly relative to an intermediate gear carrier and rotatably about an intermediate gear axis. The intermediate gear carrier is itself rotatable about a carrier axis. The ring gear is mounted fixedly on the support structure of the drive device and rotatably about an intermediate gear axis.In the case of the invention, the drive motor drives the central gear with a rotary motion about the central gear axis and / or the intermediate gear with a rotary motion about the intermediate gear axis. As a result, the intermediate gear performs a circular motion, in which the intermediate gear moves with its intermediate gear axis along a path that is concentric with the central gear and the ring gear. The ring gear has a wall opening in one of its walls, which is provided with the inner circumferential surface of the ring gear. The press ram of the drive device according to the invention is movably received in this opening to execute a working stroke directed away from the gearbox of the drive unit. In a stroke-ready position, the press ram projects with its gearbox-side end towards the inner circumferential surface of the ring gear.The intermediate gear, rotating between the central gear and the ring gear, acts on the gearbox-side end of the press ram, which is in the ready-to-stroke position. As a result, the press ram, starting from the ready-to-stroke position, executes an Ar-.
[0031] FELSS Systems GmbH 17.03.2026 SP14110PCT work stroke, due to which the machining tool of the machining unit according to the invention, which is connected to the press ram, is actuated for workpiece machining.
[0032] The drive device and the machining unit according to the invention are compact units that can be combined with one or more similar drive devices, tailored to the specific application.
[0033] Particular embodiments of the invention according to independent claims 1, 10 and 17 are set forth in dependent claims 2 to 9, 11 to 16 and 18.
[0034] In a preferred embodiment of the drive device according to the invention, the gear-side end of the press ram is provided with a cam contour that can be acted upon by the rotating intermediate wheel, the geometry of which is designed to control the working stroke of the press ram and the resulting machining movement of the machining tool of the machining unit according to the invention (claim 2).
[0035] A desired outcome is a smooth, jerk-free movement of the press ram during its working stroke. For this purpose, the cam contour according to the invention can be provided, in particular, with a concave entry for the intermediate gear and with a convex geometry adjoining the entry, the latter being responsible for at least the majority of the working stroke of the press ram.
[0036] In another embodiment of the invention, the press ram is designed in multiple parts. At least one cam section forming the cam contour is preferably detachably connected to the rest of the press ram (claim 3). Due to the multi-part design, it is particularly possible to design the individual parts of the press ram independently of one another and tailored to their specific stresses.
[0037] FELSS Systems GmbH 17.03.2026 SP14110PCT For the latter reason, in a further development of the machining unit according to the invention, the press ram and the machining tool form a preferably detachable assembly (patent claim 11). In addition, in the case of a detachable connection between the press ram and the machining tool, it is possible to combine one and the same press ram with different, even dissimilar, machining tools.
[0038] Claim 12 relates to particularly practical designs of the invention. According to the claim, a forging tool, for example a rotary swaging tool, or a tool for separating workpiece machining, for example a punching tool, is provided as the machining tool. If the press ram and the machining tool form a detachable unit, the drive device, the machining unit, and the press according to the invention can be easily configured for different machining operations by exchanging the machining tool.
[0039] According to the invention, the contact required for the functionality of the drive device between the intermediate gear and the central gear on the one hand, and between the intermediate gear and the ring gear on the other, is established by a positive fit (claim 4) or by a frictional fit (claim 5), in particular a frictional fit. It is conceivable that one contact is positively fitted and the other frictionally fitted.
[0040] In order to ensure contact between the gear wheels, particularly in the case of wear, manufacturing tolerances and / or operational-related component distortion, for example due to heat, a further embodiment of the drive device according to the invention provides that the circumferential surface of at least one of the gear wheels is formed by preferably shell-shaped wheel segments that follow one another in the circumferential direction of the gear wheel(s) and that at least one of the wheel segments is elastically preloaded in the radial direction against the opposite gear wheel (claim 6).
[0041] For corresponding reasons, claim 7 provides that gear wheels in contact with each other form a gear wheel pair and that of
[0042] FELSS Systems GmbH 17.03.2026 SP14110PCT The gear wheels of at least one of the gear wheel pairs have one gear wheel that is conical and the other gear wheel that is counter-conical. Any tolerances that could impair the contact between the gear wheels can be compensated for by axially adjusting the gear wheels of a gear wheel pair relative to each other.
[0043] In a further preferred embodiment of the invention, to optimize the power transmission between the drive motor and the press ram, several intermediate gears are provided between the central gear and the outer ring gear of the drive device according to the invention, which are offset from each other along the orbit of the intermediate gears (claim 8).
[0044] In particular, in the case of the invention design with several intermediate gears, in the interest of a durable functionality and / or in the interest of ease of maintenance of the drive device according to the invention, the inner circumferential surface of the ring gear in an area which is opposite the wall opening of the ring gear wall provided for the press ram is formed by a wear element which is preferably detachably inserted into the remaining cavity wall (patent claim 9).
[0045] According to claim 13, the machining unit according to the invention is modular in design. Several drive devices according to the invention are combined with one another.
[0046] According to claim 14, the machining unit according to the invention has a working area in which a workpiece can be arranged for machining. The drive devices of the machining modules are coordinated and controlled by a control unit. The machining modules are arranged relative to the working area, and the drive devices of the machining modules are coordinated and controllable in such a way that a workpiece arranged in the working area can be machined at different locations using the machining tools of the machining modules.
[0047] FELSS Systems GmbH 17.03.2026 SP14110PCT For example, depending on the application and / or to compensate for manufacturing or operational tolerances, at least one of the machining modules in the case of the machining unit according to claim 15 can be variably positioned relative to the working area of the machining unit. By appropriately positioning the machining modules, the dimensions of a working area of the machining unit bounded by the machining modules can be adapted to changing dimensions of the workpieces arranged in the working area for machining.
[0048] According to claim 16, a machining unit according to the invention can have machining modules with machining tools in the form of rotary kneading tools, wherein the machining modules are arranged in such a way as to be opposite each other in the working space of the machining unit.
[0049] The subject matter of claim 18 is a corresponding rotary kneading machine according to the invention.
[0050] The invention is explained in more detail below with reference to exemplary schematic diagrams. These show...
[0051] Figure 1 shows a perspective view of a modularly constructed processing unit of a rotary kneading machine,
[0052] Figure 2 shows the processing unit according to Figure 1 in the perspective view in the direction of arrow II in Figure 1.
[0053] Figure 3 shows the processing unit according to Figures 1 and 2 in a vertical top view in the direction of an arrow III in Figure 2,
[0054] Figure 4 shows a machining module of the machining unit according to Figures 1 to 3 in the front view,
[0055] Figure 5 shows the machining module according to Figure 4 in side view,
[0056] FELSS Systems GmbH 17.03.2026 SP14110PCT Figure 6 a unit comprising a press ram and a rotary kneading tool of the machining module according to Figure 4,
[0057] Figure 7 shows a cam part of the press ram according to Figure 6,
[0058] Figure 8 shows a unit comprising the press ram according to Figures 6 and 7, as well as a stamping tool and
[0059] Figure 9 shows a machining module with a segmented ring gear and 10 pre-tensioned ring gear segments.
[0060] According to Figures 1 to 3, a mechanical press device designed as a rotary kneading machine 1 has a modularly constructed processing unit 2. Four identical processing modules 4 are provided on a frame 3 of the processing unit 2.
[0061] One of the processing modules 4 of the processing unit 2 is shown individually in Figures 4 and 5.
[0062] According to Figures 4 and 5, the machining module 4 has a rotary kneading tool 5 as its machining tool. The rotary kneading tool 5 forms a unit with a press ram 6 and is detachably connected to the press ram 6.
[0063] Figure 6 shows the rotary kneading tool 5 and the press ram 6 in detail. The press ram 6 is thus designed in two parts and comprises a cam section 8 with a cam contour 7 and a remaining press ram 9 into which the cam section 8 is detachably fitted and to which the detachable connection between the press ram 6 and the rotary kneading tool 5 is made. Details of the cam section 8 are shown in Figure 7.
[0064] The press plunger 6 is part of a drive device 10 for actuating the rotary kneading tool 5.
[0065] As shown in Figure 4, the drive device 10 has, in addition to the press ram 6, a drive unit 11 with a torque converter in the illustrated example.
[0066] FELSS Systems GmbH 17.03.2026 SP14110PCTMotor trained drive motor 12 and with a mechanical gearbox 13 arranged between the drive motor 12 and the press ram 6.
[0067] The transmission 13 of the drive unit 11 is designed in the manner of a planetary gear and has as gear wheels a central gear 14 with a central gear axis 15, an outer ring gear 16 with a ring gear axis 17 coinciding with the central gear axis 15 and six intermediate gears 18 arranged radially between the central gear 14 and the ring gear 16 with intermediate gear axes 19 which run parallel to the central gear axis 15 and the ring gear axis 17.
[0068] The central gear is mounted on a shaft 21 of the drive motor 12 and is fixedly mounted on a support structure 22 of the drive device 10 via the shaft 21 and the drive motor 12 connected to it, and is rotatably mounted about the central gear axis 14. The intermediate gears 18 are fixedly mounted and rotatably mounted about the intermediate gear axes 19 on an intermediate gear carrier 23 designed as a gear cage. The intermediate gear carrier 23, together with the intermediate gears 18, is rotatable about a support axis 24 that coincides with the central gear axis 15 and the ring gear axis 17. The ring gear 16 is fixedly mounted on the support structure 22 of the drive device 10 and is rotatably mounted about the ring gear axis 17.
[0069] The intermediate gears 18 are in contact on their outer circumferential surfaces 25 with an outer circumferential surface 26 of the central gear 14 and with an inner circumferential surface 27 of the ring gear 16. The inner circumferential surface 27 of the ring gear 16 is located on a ring gear wall 28.
[0070] The ring gear wall 28 has a wall opening 29 in which the press ram 6 is movably guided in the radial direction of the central gear axis 15. In Figure 4, the press ram 6 is in a ready-to-stroke position, in which its gear-side end, provided with the cam contour 7, projects beyond the inner circumferential surface 27 of the ring gear 16.
[0071] FELSS Systems GmbH 17.03.2026 SP14110PCT To actuate the rotary kneading tool 5, the central gear 14 is driven by the drive motor 12 of the drive unit 11 with a rotary motion about the central gear axis 15. Due to a frictional engagement between the outer circumferential surfaces 25 of the intermediate gears 18 on the one hand and the outer circumferential surface 26 of the central gear 14 and the inner circumferential surface 27 of the ring gear 16 on the other hand, the rotary motion of the central gear 14 caused by the drive motor 12 generates a circular motion of the intermediate gears 18 relative to the central gear 14 and the ring gear 16. During the circular motion of the intermediate gears 18, the intermediate gear axes 19 move along a circular path 30 concentric with the central gear axis 15, along which the intermediate gears 18 are offset from one another.
[0072] During their rotation, the intermediate gears 18 successively pass through the wall opening 29 on the ring gear wall 28 and the gear-side end of the press ram 6, which is arranged in the stroke-ready position and projects opposite the inner circumferential surface 27 of the ring gear 16. In doing so, an intermediate gear 18 first moves over a concave entry contour 31 of the cam contour 7 at the gear-side end of the press ram 6, then over a convex actuation contour 32 and finally over a concave exit contour 33 of the cam contour 7 (Figure 7).At the convex actuation contour 32, the intermediate gear 18 acts on the gear-side end of the press ram 6, which projects from the inner circumferential surface 27 of the ring gear 16, such that the press ram 6, against the action of a restoring force generated by restoring springs 20, executes a working stroke directed away from the gearbox 13 of the drive unit 11 and thereby actuates the rotary kneading tool 5 for workpiece processing.
[0073] Once an intermediate gear 18 has passed the apex of the concave run-out contour 33 at the gearbox-side end of the press ram 6, the press ram 6 is returned to the stroke-ready position by the return springs 20 before the press ram 6 is driven by the next intermediate gear 18 with a further working stroke. The oscillating motion thus performed by the press ram 6
[0074] FELSS Systems GmbH 17.03.2026 SP14110PCT The elliptical motion is illustrated by a double arrow in Figure 4. Due to the geometry of the cam contour 7, the press ram 6 executes its working strokes without acceleration jerks.
[0075] When the rotary kneading tool 5 is actuated by the press ram 6, the reaction forces occurring are transferred by the rotating intermediate gears 18, particularly in a region of the hollow gear wall 28 radially opposite the press ram 6. This region of the hollow gear wall 28 is therefore subject to a particularly high degree of wear. For this reason, the inner circumferential surface 27 of the hollow gear 16, in the region opposite the wall opening 29 of the hollow gear wall 28, is formed by a wear element 34, which is detachably inserted into the remaining hollow gear wall 28.
[0076] On the rotary kneading machine 1, the processing modules 4 of the processing unit 2 are arranged opposite each other in pairs on a working area 35 (Figure 3).
[0077] By means of a control unit 36 of conventional design indicated in Figure 3, the drive devices 10, in particular the drive motors 12 of the drive units 11, are controlled in such a coordinated manner that the rotary kneading tools 5 of the processing modules 4 process a workpiece arranged in the working space 35 in the desired way at different locations.
[0078] To adapt the machining unit 2 to changing dimensions, in particular to changing diameters of the workpieces to be machined, each machining module 4 is equipped with an adjustment device 37. By means of the adjustment devices 37, the machining modules 4 can be moved relative to each other to adapt the working area 35 to the dimensions of the workpieces to be machined. Conventional spindle adjustment devices, for example, are suitable as adjustment devices 37.
[0079] In Figure 8, a punching tool 38 is provided as the machining tool instead of the rotary kneading tool 5 provided on the press ram 6 in Figure 6. By using the resulting assembly of press ram 6 and punching tool 38 on the drive device 10, this can be used for punching.
[0080] FELSS Systems GmbH 17.03.2026 SP14110PCT Workpiece processing, in particular for stamping sheet metal processing, converted and used on a corresponding machine press device.
[0081] Figures 9 and 10 show a possible design of the processing module 4 in two consecutive section planes of the supporting structure 22.
[0082] The inner circumferential surface 27 of the ring gear 16 is partially formed by shell-like gear segments 39, which follow one another in the circumferential direction of the ring gear 16. In the radial direction, the gear segments 39 are elastically preloaded against the opposing intermediate gears 18 by means of preload springs 40 (Figure 9). In the event of any radial movements, the gear segments 39 are guided on the support structure 22 by guide pins 41 (Figure 10).
[0083] FELSS Systems GmbH March 17, 2026 SP14110PCT
Claims
Patent claims 1. Drive device for actuating a machining tool (5, 38) of a machine press device (1) for material processing, with a drive unit (11) and with a press ram (6), • wherein the drive unit (11) comprises a drive motor (12) and a mechanical transmission (13) arranged between the drive motor (12) and the press ram (6), • wherein the press ram (6) can be driven by the drive unit (11) with a working stroke to actuate the machining tool (5, 38), • wherein the transmission (13) of the drive unit (11) comprises as gear wheels a central gear (14) with a central gear axis (15), an outer ring gear (16) with a ring gear axis (17) coinciding with the central gear axis (15), and at least one intermediate gear (18) arranged radially between the central gear (14) and the outer ring gear (16) with an intermediate gear axis (19) running parallel to the central gear axis (15) and the ring gear axis (17), - wherein the central gear (14) is in contact at an outer circumferential surface (26) of the central gear (14) with an outer circumferential surface (25) of the intermediate gear (18) and the intermediate gear (18) is in contact at the outer circumferential surface (25) of the intermediate gear (18) with an inner circumferential surface (27) of the outer ring gear (16), which is provided on a ring gear wall (28) and runs coaxially with the ring gear axis (17), - wherein the central wheel (14) is mounted in a fixed position on a support structure (22) of the drive device and is rotatably mounted about the central wheel axis (15), - wherein the intermediate wheel (18) is mounted in a fixed position and rotatably about the intermediate wheel axis (19) on an intermediate wheel carrier (23) and the intermediate wheel carrier (23) is rotatably mounted together with the intermediate wheel (18) about a carrier axis (24) running parallel to the intermediate wheel axis (19) and FELSS Systems GmbH 17.03.2026 SP14110PCT - wherein the outer ring gear (16) is fixedly arranged on the support structure (22) of the drive device and is non-rotatable about the ring gear axis (17), • wherein the outer ring gear (16) is provided on the ring gear wall (28) with a wall opening (29) in which the press ram (6) is movably received for carrying out the working stroke directed away from the gearbox (13) of the drive unit (11), wherein the press ram (6) can be arranged along the stroke path of the working stroke in a stroke-ready position in which the press ram (6) projects with a gearbox-side end opposite the inner circumferential surface (27) of the outer ring gear (16) and • wherein the press ram (6) arranged in the stroke-ready position can be acted upon at the gearbox-side end by the intermediate wheel (18) performing the rotary motion to execute the working stroke, characterized in that that a circular motion of the intermediate gear (18), which is carried out by the intermediate gear (18) relative to the central gear (14) and relative to the outer ring gear (16) and with the intermediate gear axis (19) along a circular path (30) concentric with the central gear axis (15), can be generated by driving the central gear (14) with a rotary motion about the central gear axis (15) and / or the intermediate gear (18) with a rotary motion about the intermediate gear axis (19) by means of the drive motor (12) of the drive unit (11).
2. Drive device according to claim 1, characterized in that the gear-side end of the press ram (6) is provided with a cam contour (7) which can be acted upon by the intermediate wheel (18) during the rotary movement, the geometry of which is designed to control the working stroke of the press ram (6).
3. Drive device according to claim 2, characterized in that the press ram (6) is designed in multiple parts and has at least one cam part (8) forming the cam contour (7), which is preferably detachably connected to the rest of the press ram (9). FELSS Systems GmbH 03 / 17 / 2026 SP14110PCT- 16 - 4. Drive device according to one of the preceding claims, characterized in that • that the central gear (14) and the intermediate gear (18) are in positive contact with each other at an external toothing of the central gear (14) forming the outer circumferential surface (26) of the central gear (14) and at an external toothing of the intermediate gear (18) forming the outer circumferential surface (25) of the intermediate gear (18). and / or • that the intermediate gear (18) and the outer ring gear (16) are in positive contact with each other at an external toothing of the intermediate gear (18) forming the outer circumferential surface (25) of the intermediate gear (18) and at an internal toothing of the ring gear wall (28) forming the inner circumferential surface (27) of the outer ring gear (16).
5. Drive device according to one of claims 1 to 3, characterized in that, • that the central gear (14) and the intermediate gear (18) are in frictional contact with each other at the outer circumferential surface (26) of the central gear (14) and at the outer circumferential surface (25) of the intermediate gear (18) and / or • that the intermediate gear (18) and the outer ring gear (16) are in frictional contact with each other at the outer circumferential surface (25) of the intermediate gear (18) and at the inner circumferential surface (27) of the outer ring gear (16).
6. Drive device according to one of the preceding claims, characterized in that, • that the circumferential surface of at least one of the gear wheels is formed of preferably shell-shaped gear segments (39) which follow one another in the circumferential direction of the gear wheel(s) and • that at least one of the wheel segments (39) is elastically prestressed in the radial direction against the opposite gear wheel. FELSS Systems GmbH 03 / 17 / 2026 SP14110PCT- 17 - 7. Drive device according to one of the preceding claims, characterized in that gear wheels in contact with each other form a gear wheel pair and that at least one of the gear wheel pairs has one gear wheel conical and the other gear wheel counter-conical.
8. Drive device according to one of the preceding claims, characterized in that several intermediate gears (18) are provided between the central gear (14) and the outer ring gear (16), which are offset from each other along the orbit (30) of the intermediate gears (18).
9. Drive device according to one of the preceding claims, characterized in that the inner circumferential surface (27) of the outer ring gear (16) is formed in a region opposite the wall opening (29) of the ring gear wall (28) by a wear element (34) which is preferably detachably inserted into the remaining ring gear wall (28).
10. Machining unit of a machine press device (1) for material processing, comprising at least one machining tool (5, 38) and a drive device by means of which the machining tool (5, 38) can be actuated for material processing, characterized in that the drive device (10) according to one of claims 1 to 9 is provided as the drive device.
11. Machining unit according to claim 10, characterized in that the press ram (6) of the drive device (10) and the machining tool (5, 38) form a preferably detachable assembly.
12. Machining unit according to claim 10 or claim 11, characterized in that a forging tool or a tool for separating workpiece machining is provided as the machining tool (5, 38).
13. Processing unit according to one of claims 10 to 12, characterized in that, FELSS Systems GmbH 03 / 17 / 2026 SP14110PCT- 18 - • that the machining tool (5, 38) and the drive device (10) for actuating the machining tool (5, 38) form a machining module (4) of the machining unit and • that at least one further machining module (4) is provided with a machining tool (5, 38) and a drive device (10) according to one of claims 1 to 9.
14. Processing unit according to claim 13, characterized in that • that a work space (35) is provided in which a workpiece can be arranged for processing, • that a control unit (36) is provided by means of which the drive devices (10) of the machining modules (4) can be controlled in a coordinated manner and • that the machining modules (4) are arranged relative to the work space (35) and the drive devices (10) of the machining modules (4) are coordinated and controllable by means of the control unit (36) in such a way that a workpiece arranged in the work space (35) can be machined at different locations by means of the machining tools (5, 38) of the machining modules (4).
15. Machining unit according to claim 14, characterized in that at least one of the machining modules (4) can be moved relative to at least one other machining module (4) to change the working space (35).
16. Processing unit according to claim 14 or claim 15, characterized in that, • that machining modules (4) are provided with machining tools (5) in the form of rotary kneading tools and • that the machining modules (4) are arranged in such a way as to the work space (35) of the machining unit that the machining tools (5) of the machining modules (4) are opposite each other in the work space (35). FELSS Systems GmbH 03 / 17 / 2026 SP14110PCT- 19 - 17. Machine press device for material processing, with a processing unit, characterized in that the processing unit (2) according to one of claims 10 to 16 is provided as the processing unit.
18. Machine press device according to claim 17, characterized in that the machine press device is designed as a rotary kneading machine (1) and has a processing unit according to claim 16 as the processing unit. FELSS Systems GmbH March 17, 2026 SP14110PCT