Bearing adjustment device, calender, and method for manufacturing web-like product

Abstract

The present invention relates to a bearing adjustment device (1) having a rotatably mounted outer eccentric sleeve (2) and a rotatable inner eccentric sleeve (3) received in the outer eccentric sleeve (2), the inner eccentric sleeve (3) having a support (4), the outer eccentric sleeve (2) and the inner eccentric sleeve (3) being rotatable relative to each other, preferably in opposite directions, and configured so that the central axis (A) of the support (4) is adjusted in an adjustment direction (V), preferably vertically, upon relative rotation, preferably reverse rotation, of the outer eccentric sleeve (2) with respect to the inner eccentric sleeve (3). The present invention also relates to a calender and a method for producing a web-like product.

Description

[Technical Field]

[0001] The present invention relates to a bearing adjustment device, a calender equipped with a bearing adjustment device, and a method for producing a web-like product, such as an electrode film.

[0002] The bearing adjustment device according to the present invention can be used in the production of films, such as plastic films. Plastic films can be produced by placing plastic material in a roller nip. The width of the roller nip, which can affect the film thickness and production process, and thus the film quality, can be adjusted using the bearing adjustment device according to the present invention. Films can be produced using a calender, which can have two rollers with corresponding roller nips.

[0003] However, the bearing adjustment device according to the present invention and / or the calender according to the present invention having a corresponding bearing adjustment device is not limited to this and can be used or provided for the production of other products, in particular other web-like products or web-like materials.

[0004] For example, the calender according to the present invention or the bearing adjustment device according to the present invention allows for the coating of a web-like carrier with a coating material. For example, a coating agent can be applied to a web-like carrier guided through a roller nip by a coating roller, and the width of the roller nip can be adjusted by the bearing adjustment device. This means that the roller nip can be adjusted depending on, for example, the coating process, the coating material, and / or the web-like carrier. Similarly, the roller nip can be adjusted by the bearing adjustment device according to the present invention during powder grinding and / or during the production of a polymer-metal dry film.

[0005] The bearing arrangement can also be used for adjusting the engraving or embossing roller.The engraving or embossing device can have a bearing arrangement according to the invention.

[0006] Calenders are used, for example, in the manufacture of films, in particular electrode films, which can then be used to manufacture electrodes for electrical energy storage devices such as batteries.

[0007] In the production of electrode films, powdered electrode precursor materials are introduced into the nip of a pair of rollers in a calender, compressed, and then processed into dry electrodes. Methods for producing dry electrodes are known, for example, from WO2020 / 148410A2.

[0008] The electrochemical properties of the correspondingly produced electrode film or electrode, such as the capacity and efficiency of a battery electrode, are determined by various factors, including the distribution of the active material, binder, and additives, the physical properties of the included materials (e.g., particle size and surface area of ​​the active material), the surface properties of the active material, and the physical properties of the electrode film (e.g., density, porosity, cohesion, and adhesion to conductive elements). Dry-process systems and methods traditionally use high-shear and / or high-pressure processing steps to disperse and mix electrode film materials. These systems and methods can offer structural advantages over wet-processed electrode films. However, high processing pressures can cause roller deflection during calendering, changing the roller nip width and potentially adversely affecting the quality of the resulting electrode film. Therefore, adjusting the nip width is desirable.

[0009] To counteract the deflection of the rollers, the rollers can be cross-axisd, in which one or both rollers rotate about an axis of rotation perpendicular to their longitudinal axis. Corresponding calenders are known, for example, from EP 3 792 394 A1, in which the rollers or their bearings rotate in an arc via rockers. Again, this results in the rollers being adjusted in a direction perpendicular to the main adjustment direction.

[0010] Therefore, an object of the present invention is to provide a bearing adjustment device, a calender, and a method for manufacturing an electrode film, which enable flexible and precise adjustment of the rollers and flexible and precise adjustment of the nip width, thereby enabling the production of high-quality electrode films. In a preferred embodiment of the present invention, linear adjustment is performed in only one adjustment direction.

[0011] The object of the invention is achieved by a bearing adjusting device according to claim 1, a calender according to claim 14 and a manufacturing method according to claim 21. Preferred embodiments are the subject of the respective dependent claims.

[0012] A first aspect of the present invention relates to a bearing adjustment device having a rotatably mounted outer eccentric sleeve and a rotatable inner eccentric sleeve received within the outer eccentric sleeve, the inner eccentric sleeve having a support, the outer eccentric sleeve and the inner eccentric sleeve being rotatable relative to each other, and designed so that when the outer eccentric sleeve rotates relative to the inner eccentric sleeve, the center point of the support is adjusted in the adjustment direction. In some embodiments, the outer eccentric sleeve and the inner eccentric sleeve can be rotated relative to each other, and can be configured so that when the outer eccentric sleeve rotates in the opposite direction relative to the inner eccentric sleeve, the center point of the support is adjusted in the adjustment direction. The adjustment direction can be vertical. In this way, the bearing adjustment device enables easy and flexible adjustment of the support, and therefore the roller or roll supported by the bearing adjustment device.

[0013] The outer eccentric sleeve and / or the inner eccentric sleeve may be substantially hollow cylindrical. The wall thickness of the outer eccentric sleeve and / or the inner eccentric sleeve may vary in the circumferential direction. The receiver may be cylindrical and / or circular. The central axis of the receiver may be the axis of symmetry of the receiver. The central axis of the receiver may be aligned perpendicular to the adjustment direction. The central axis may extend in the extension direction of the receiver. The central axis may be located at the center of the receiver.

[0014] The central axis of the receiver can be adjusted in the adjustment direction by up to 20 mm. The center point of the receiver can be adjusted by a maximum distance of up to 15 mm in the adjustment direction. In some embodiments, the center point of the receiver may be adjustable by a maximum distance of 12 mm in the adjustment direction. However, in some embodiments, the maximum distance may be greater or less, depending, for example, on the manufacturing process and / or the web-like material being produced. The maximum distance may be the maximum possible distance between the positions of the central axis. The maximum distance may be measured between the "low point" of the central axis and the "high point" of the central axis. The distance in the adjustment direction may be zero at the "low point." The low point may define a reference position for the central axis. If the distance is measured relative to the reference position, the distance at the "low point" may be zero. In some embodiments, the outer eccentric sleeve and the inner eccentric sleeve may be rotated so that the central axis is at the "low point," and the distance may be zero. Upon further rotation of the outer eccentric sleeve and / or the inner eccentric sleeve, in some embodiments by counter-rotation, the distance may increase until the maximum distance is reached, i.e., until the central axis is at, for example, the "highest point." As rotation continues, the distance may decrease again. In some embodiments, the maximum distance may depend on the dimensions of the bearing adjuster, the inner eccentric sleeve, and / or the outer eccentric sleeve.

[0015] The outer eccentric sleeve and the inner eccentric sleeve can be designed such that when the outer eccentric sleeve is rotated in an opposite direction to the inner eccentric sleeve, the center point of the receiver is not adjusted in a direction perpendicular to the adjustment direction. In some embodiments, the outer eccentric sleeve and the inner eccentric sleeve can be configured such that when the outer eccentric sleeve is rotated in an opposite direction, the center point of the receiver is not adjusted in a horizontal direction.

[0016] The inner eccentric sleeve may have a first eccentric gear. The first eccentric gear may be or may have a non-circular gear. The outer eccentric sleeve may have a second eccentric gear. The second eccentric gear may be or may have a non-circular gear. If the first eccentric gear and / or the second eccentric gear are non-circular, the eccentricity of the inner bearing sleeve and / or the outer bearing sleeve may be compensated for so that the respective eccentric gears can be simply and easily driven by simple or circular gears, for example spur gears.

[0017] The first eccentric gear can be located on a first side of the bearing adjuster, and the second eccentric gear can be located on a second side of the bearing adjuster. The second side may be located opposite the first side. This allows each eccentric gear to be easily accessible, for example, to be driven by another gear. Corresponding placement of the eccentric gears can also at least partially compensate for torque due to their weight. In some embodiments, the center of gravity of the bearing adjuster can also be closer to and / or coincident with the geometric center of the bearing adjuster, which can improve retention of the bearing adjuster, for example, after assembly.

[0018] The bearing adjustment device may include a drive device configured to drive and / or rotate the inner eccentric sleeve and / or the outer eccentric sleeve. In some embodiments, the drive device may drive the inner eccentric sleeve and the outer eccentric sleeve independently and / or individually. In some embodiments, the outer eccentric sleeve and the inner eccentric sleeve are independently rotated or can be independently rotated. In some other embodiments, the drive device may drive the inner eccentric sleeve and the outer eccentric sleeve such that when the inner eccentric sleeve is rotated, the outer eccentric sleeve is also rotated, and / or vice versa.

[0019] The drive may include a manual adjustment, an electric motor, a stepper motor, an encoder drive, and / or a hydraulic motor.

[0020] The drive device may include a first gear coupled to the first eccentric gear, a second gear coupled to the first gear, and a third gear coupled to the second eccentric gear. The first gear may be or may include a first spur gear. The second gear may be or may include a second spur gear. The third gear may be or may include a third spur gear.

[0021] The driver can include a shaft that can couple the second gear to the third gear. In some embodiments, the shaft can extend generally parallel to the inner eccentric sleeve and the outer eccentric sleeve. The driver can be configured to drive and / or rotate and / or apply torque to the shaft.

[0022] The gear ratio between the first gear and the first eccentric gear, the gear ratio between the second gear and the first gear, and the gear ratio between the third gear and the second eccentric gear can each be selected so that when the shaft rotates, the inner eccentric sleeve rotates in the opposite direction by the same angle relative to the outer eccentric sleeve.

[0023] At least one of the gears may be a split gear and / or may have at least two gear halves coupled to each other. One, some, or all of the first eccentric gear, the second eccentric gear, the first gear, the second gear, and / or the third gear may be split gears and / or may have at least two gear halves coupled to each other. The gear halves may be coupled and / or fastened to each other via springs, such as torsion springs or omega springs. Alternatively or additionally, the gear halves may be coupled and / or fastened to each other using an elastic material. The elastic material may be disposed between the gear halves. The elastic material may be, for example, an elastomer or may include an elastomer.

[0024] When a gear is split, the splitting can improve or enhance the contact and / or meshing of the teeth of the split gear with the teeth of another gear, and can reduce or even eliminate play in the gear.

[0025] The bearing adjustment device may include a second drive configured to drive the inner eccentric sleeve and / or the outer eccentric sleeve. The second drive may have one, some, or all of the features and / or advantages of the drive. The second drive may include a manual adjustment, an electric motor, a stepper motor, an encoder drive, and / or a hydraulic motor.

[0026] By pretensioning both drives against each other, the position of the eccentric sleeve can be kept free of play. For example, one drive can be blocked while the other can accumulate a predetermined preload with a desired torque to eliminate backlash. In some embodiments, the second drive can be configured to drive and / or rotate the shaft and / or apply a torque to the shaft. The drive and second drive can rotate the shaft in the same and / or opposite rotational directions and / or apply torque to the shaft in the same or opposite directions and / or with the same or different magnitudes, respectively.

[0027] The outer eccentric sleeve, the inner eccentric sleeve, and the receiver can be arranged parallel to one another. The rotation axes of the outer eccentric sleeve and the inner eccentric sleeve can be arranged parallel to one another and / or parallel and spaced apart from one another. In some embodiments, the symmetry axes of the outer eccentric sleeve, the inner eccentric sleeve, and the receiver can be arranged parallel to one another and / or parallel and spaced apart from one another.

[0028] The inner eccentric sleeve may protrude beyond the outer eccentric sleeve.

[0029] The first eccentric gear may be arranged to axially fix the inner eccentric sleeve relative to the outer eccentric sleeve. The inner eccentric sleeve may have a first retaining ring to axially fix the inner eccentric sleeve relative to the outer eccentric sleeve. The first retaining ring may be arranged opposite the first eccentric gear.

[0030] The outer eccentric sleeve is rotatably mounted on the housing, and the second eccentric gear can axially fix the outer eccentric sleeve relative to the housing. The outer eccentric sleeve can have a second retaining ring that can axially fix the outer eccentric sleeve relative to the housing. The second retaining ring can be disposed opposite the second eccentric gear.

[0031] The bearing adjustment device may include a bearing that can be disposed in a receiver. The bearing may be a rolling bearing or may have a rolling bearing. For example, a roller or roll may be incorporated into the rolling bearing. When the bearing is incorporated into the receiver, the central axis of the receiver may correspond to or coincide with the central axis of the bearing. When the roller or roll is attached to the bearing, the central axis of the receiver may correspond to or coincide with the rotation axis of the roller or roll.

[0032] However, the bearing adjustment device according to the present invention is not limited to calenders and / or calendering processes, other applications are also envisaged.

[0033] A further aspect of the present invention relates to a calender including a bearing adjustment device as described above and a roller pair having a nip between the rollers of the roller pair, one of the rollers being supported by the bearing adjustment device. This means that one or both rollers of the roller pair can rotate and / or cross axially relative to each other by adjusting the central axis of the bearing. In some embodiments, alternatively or additionally, the roller nip is or becomes flexible and can be easily adjusted.

[0034] Each roller of a roller pair can be supported at its lateral ends by a bearing adjustment device as described above, which allows the rollers to be rotated relative to each other and to cross axially more flexibly. Alternatively or additionally, the roller nip can be set more flexibly.

[0035] The calender may have a powder hopper for filling the roller nip with powder, which allows for good and uniform filling of the roller nip. The powder may be or may include a powdered electrode film precursor material.

[0036] The calender may have a support roller, which may laterally support one of the rollers of the roller pair, meaning that lateral forces from the roller may be absorbed laterally by the support roller.

[0037] The support rollers can be supported by a separate bearing adjustment device, as described above, which means that the support rollers are adjustable or adjusted, so that even the adjusted rollers can be reliably supported laterally by the adjusted support rollers.

[0038] By adjusting the central axis of the receiver of the bearing adjustment device in the adjustment direction, one roller of the roller pair can be rotated and / or axially crossed relative to the other roller of the roller pair. The adjustment and / or axial crossing and / or nip width of the roller nip can be changed during operation. In some embodiments, the calender can include a sensor that can detect the adjustment and / or axial crossing and / or nip width of the roller nip. The adjustment can be made during operation, for example, based on data detected by the sensor.

[0039] Yet another aspect of the present invention relates to a method for producing a web-like product using a calender, the method comprising: - feeding a precursor material into the roller nip of a pair of rollers of a calender; - producing a web-like product, the process comprising: at least one of the rollers of the roller pair contacting the precursor material in a roller nip; During compression, at least one of the rollers of the roller pair is rotated and / or axially crossed relative to the other roller, and the adjustment and / or axial crossing of the rollers includes adjustment of the central axes of the bearing adjustment devices that support the rollers in the adjustment direction, which means that a web-like product of high and / or stable quality can be or is produced.

[0040] The calendar may be or include a calendar as described above.

[0041] The precursor material may comprise plastic, the web-like product may be a plastic film, and during manufacture of the web-like product, the precursor material may be formed into a plastic film by rollers.

[0042] The precursor material may comprise a web-like carrier and one of the rollers may be or comprise a coating roller, by which a coating agent may be applied to the web-like carrier during production of the web-like product.

[0043] The precursor material may include a powdered electrode film precursor material, and feeding the precursor material may include introducing the powdered electrode film precursor material into a roller nip, and producing the web-like product may include compressing the powdered electrode film precursor material with rollers of a roller pair of a calendering device.

[0044] Before the powdered electrode film precursor material is introduced into the roller nip, the powdered electrode film precursor material may be loaded into a powder hopper of a calender, and the powdered electrode film precursor material may be introduced into the roller nip by the powder hopper.

[0045] The compressed electrode film precursor material can be compressed into a film during compression. After compressing the electrode film precursor material, the compressed electrode film precursor material can be further pressed. The compressed electrode film precursor material can be further pressed with another pair of rollers.

[0046] The further-pressed electrode film precursor material may be pressed into a film during further pressing. After further pressing, an electrode film may be formed, and forming the electrode film may include laminating the further-pressed electrode film precursor material.

[0047] In some embodiments, the electrode film may alternatively be formed after compressing the electrode film precursor material, and forming the electrode film may include laminating the compressed electrode film precursor material.

[0048] In forming the electrode film, a first compressed electrode film precursor material and / or a first further compressed electrode film precursor material may be laminated to a first side of a metal foil, and a second compressed electrode film precursor material and / or a second further compressed electrode film precursor material may be laminated to a second side of the metal foil opposite the first side.

[0049] In some embodiments, one, some, or all of the steps of the described methods may be performed in a different order.

[0050] The invention will be further explained with reference to the following figures: [Brief explanation of the drawings]

[0051] [Figure 1] 1 is a perspective view of an exemplary embodiment of a bearing adjustment device according to the present invention; FIG.

[0052] [Figure 2] 2 is a further perspective view of the exemplary embodiment shown in FIG. 1.

[0053] [Figure 3] FIG. 3 is an exploded perspective view of the exemplary embodiment shown in FIGS. 1 and 2.

[0054] [Figure 4] FIG. 4 is a cross-sectional view of the exemplary embodiment shown in FIGS.

[0055] [Figure 5] 5 is a further cross-sectional view of the exemplary embodiment shown in FIGS. 1-4. FIG.

[0056] [Figure 6] 1 is a schematic diagram of an exemplary embodiment of a calendar according to the present invention; DETAILED DESCRIPTION OF THE INVENTION

[0057] 1 to 5 show an exemplary embodiment of a bearing adjusting device 1 according to the present invention. Fig. 1 shows one side of the bearing adjusting device 1, and Fig. 2 shows the opposite side. Fig. 3 is an exploded perspective view of the bearing adjusting device 1. Fig. 4 is a cross-sectional view of the bearing adjusting device 1, and Fig. 5 is a longitudinal cross-sectional view of the bearing adjusting device 1.

[0058] The bearing adjustment device 1 includes an outer eccentric sleeve 2 and an inner eccentric sleeve 3. The outer eccentric sleeve 2 is rotatably mounted to the bearing adjustment device 1 and / or the housing 17 of the bearing adjustment device 1, for example, by an eccentric sleeve bearing 24. The inner eccentric sleeve 3 is received within the outer eccentric sleeve 2 and rotatably mounted therein. The outer eccentric sleeve 2 and the inner eccentric sleeve 3 can rotate in opposite directions. The outer eccentric sleeve 2 and / or the inner eccentric sleeve 3 can be substantially hollow cylindrical and / or have a substantially hollow cylindrical shape. The outer eccentric sleeve 2 and / or the inner eccentric sleeve 3 can rotate about respective rotation axes, which can be aligned parallel to the axial direction C of the bearing arrangement. The wall thickness of the outer eccentric sleeve and / or the inner eccentric sleeve can vary circumferentially.

[0059] The inner eccentric sleeve 3 has a bearing 4. The bearing 4 can accommodate a bearing (not shown), for example a rolling bearing. The bearing can be mounted in the bearing 4 and / or can be glued to the bearing 4. The bearing can be or have, for example, a roller bearing or a ball bearing. The bearing can be used to support rolls and / or rollers. The bearing 4 has a central axis A. The central axis A can be the axis of symmetry of the bearing 4. The central axis can extend in the extension direction of the bearing 4. The central axis A can be located in the center of the bearing 4.

[0060] The outer eccentric sleeve 2 can be accommodated in an outer eccentric sleeve receiver 25 of the bearing adjustment device 1 (see, for example, FIG. 3). The inner eccentric sleeve 3 can be received in the inner eccentric sleeve receiver 25 of the outer eccentric sleeve 2. The outer eccentric sleeve receiver 25, the inner eccentric sleeve receiver 26 and / or the receiver 4 can be circular and / or cylindrical. The respective center points and / or respective central axes of the outer eccentric sleeve receiver 25, the inner eccentric sleeve receiver 26 and / or the receiver 4 can be arranged eccentrically and / or non-coaxially.

[0061] When the outer eccentric sleeve 2 and / or the inner eccentric sleeve 3 rotate, the eccentricity of the outer eccentric sleeve 2 or the inner eccentric sleeve 3 can adjust or be adjusted the central axis A of the receiver 4 of the inner eccentric sleeve 3 in the adjustment direction V.

[0062] Preferably, the outer eccentric sleeve 2 and the inner eccentric sleeve 3 can be rotated in opposite directions such that the central axis A or a point on the central axis A is adjusted only in the adjustment direction V. In other words, the rotation of the outer eccentric sleeve 2 and the inner eccentric sleeve 3 in opposite directions compensates for the adjustment of the central axis A in a direction H perpendicular to the adjusting device, and the central axis A or a point on the central axis A is not adjusted in the direction H. For example, the outer eccentric sleeve 2 and the inner eccentric sleeve 3 can be designed so that the central axis is adjusted only in the adjustment direction V when rotated in opposite directions by equal respective rotation angle values. The central axis A can be moved and / or moved or adjusted linearly in the adjustment direction V. This allows, for example, a precise adjustment of the roller nip.

[0063] In an exemplary embodiment shown by way of example, the central axis A of the receiver 4 can be located at a "low point" along the adjustment direction V in the orientation of the outer sleeve 2 and the inner sleeve 3 shown in FIGS. 1 and 2 . When rotated 180° in the opposite direction, the central axis A can have a maximum distance d from this low point in the adjustment direction V; that is, the central axis B thus adjusted can be spaced parallel to the central axis passing through the "low point" by a maximum distance d in the adjustment direction V. Rotating in the opposite direction through an angle (amount) of 180°, the distance d can increase to a maximum distance. Rotating in the opposite direction beyond 180° can decrease the distance d again until it reaches zero at an angle (amount) of 360°. The maximum distance d, and therefore the maximum adjustment of the central axis A in the adjustment direction V, can be up to 20 mm in some embodiments. The maximum distance d, and therefore the maximum adjustment of the central axis A in the adjustment direction V, can be up to 15 mm in some embodiments. The maximum distance d, and therefore the maximum adjustment of the central axis A in the adjustment direction V, can be up to 12 mm in some embodiments. The maximum distance d, and therefore the maximum adjustment of the central axis A in the adjustment direction V, can be up to 10 mm in some embodiments. In some embodiments, the maximum distance d can be 12 mm. In the production of plastic films, some embodiments can provide a maximum distance d of 10 mm to 20 mm, e.g., 12 mm. However, the maximum distance d can also be greater or smaller. The maximum distance d can be selected depending on the intended production process, the intended use of the bearing adjustment device and / or the calender, and / or the web-like product or material being produced. The maximum distance d can be selected, for example, by appropriate selection of the dimensions and / or eccentricity of the outer eccentric sleeve 2, the inner eccentric sleeve 3, and / or the receiver 4.

[0064] In some embodiments, the adjustment direction V may be vertical. In some embodiments, the direction H may be horizontal. Other adjustment directions V are possible depending on the orientation of the bearing arrangement and / or the design of the outer eccentric sleeve 2 and the inner eccentric sleeve 3.

[0065] If a bearing is accommodated in the receiver 4, for example a rolling bearing, the axis of rotation of the bearing accommodated in the receiver 4 can be or is adjusted accordingly in the adjustment direction V. This means that the roller or roll supported by the bearing or bearing arrangement 1 can also be adjusted accordingly.

[0066] In some other embodiments, the outer eccentric sleeve 2 and the inner eccentric sleeve 3 can be rotated by different angles and / or in the same direction of rotation in order to adjust the central axis A in both the adjustment direction V and the direction H. In some embodiments, alternatively or additionally, the shape of the outer eccentric sleeve 2 and / or the inner eccentric sleeve 3 can be selected such that the central axis A is adjustable in both the adjustment direction V and the direction H. The rotation angle, rotation direction and / or shape of the outer eccentric sleeve 2 and / or the inner eccentric sleeve 3 can be appropriately selected to allow a predetermined adjustment of the central axis A of the receiver 4 in the adjustment direction V and the direction H. If a bearing is accommodated in the receiver 4, for example a rolling bearing, the rotation axis of the bearing accommodated in the receiver 4 can be or is adjusted accordingly in the adjustment direction V and the direction H. This allows for particularly flexible adjustment of the central axis A and therefore of the bearing accommodated in the receiver 4 or of the roller or cylinder mounted by the bearing device 1.

[0067] The bearing adjusting device 1 may include a drive device 10. The drive device 10 may be configured to drive and / or rotate the inner eccentric sleeve 3 and / or the outer eccentric sleeve 2. The inner eccentric sleeve 3 may include a first eccentric gear 6. The first eccentric gear 6 may be disposed outside the inner eccentric sleeve 3 and / or may surround the inner eccentric sleeve 3. Alternatively, in some embodiments, the first eccentric gear 6 may also be an internal gear and / or may be disposed inside the inner eccentric sleeve 3. The outer eccentric sleeve 2 may include a second eccentric gear 7. The second eccentric gear 7 may be disposed outside the outer eccentric sleeve 2 and / or may surround the outer eccentric sleeve 2. Alternatively, in some embodiments, the second eccentric gear 7 may also be an internal gear and / or may be disposed inside the outer eccentric sleeve 2. For example, as shown in Figures 3 and 5, the first eccentric gear 6 can be located on one side of the bearing adjustment device 1 and the second eccentric gear 7 can be located on the opposite side of the bearing adjustment device 1.

[0068] The drive device 10 may include a first gear 11. The first gear 11 may be coupled to the first eccentric gear 6, thereby transmitting rotation of the first gear 11 to the first eccentric gear 6, and / or vice versa. The drive device 10 may include a third gear 13. The third gear 13 may be coupled to the second eccentric gear 7, thereby transmitting rotation of the third gear 13 to the second eccentric gear 7, and / or vice versa. The drive device 10 may also include a second gear 12. The second gear 12 may be coupled to the first gear 11, thereby transmitting rotation of the second gear 12 to the first gear 11, and thus indirectly to the first eccentric gear 6, and / or vice versa. The first gear 11 may be or may include a first spur gear. The second gear 12 may be or may include a second spur gear, and the third gear 13 may be or may include a third spur gear.

[0069] It is also possible for the first eccentric gear 6 to be non-circular. If the outer eccentric sleeve 2 is eccentric and / or the outer eccentric sleeve receiver 25 is eccentric relative to the inner eccentric sleeve receiver 26, the corresponding eccentricity can be or will be compensated for by the non-circular first eccentric gear 6, so the first gear 11 can be a circular gear, for example a spur gear, for driving the first eccentric gear 6. It is also possible for the second eccentric gear 7 to be non-circular. If the inner eccentric sleeve 3 is eccentric and / or the inner eccentric sleeve receiver 25 is eccentric relative to the receiver 4, the corresponding eccentricity can be or will be compensated for by the non-circular second eccentric gear 7, so the third gear 13 can be a circular gear, for example a spur gear, for driving the second eccentric gear 7.

[0070] At least one of the gears 6, 7, 11, 12, and 13 may be a split gear and / or have at least two gear halves (not shown) connected to each other. One, some, or all of the first eccentric gear 6, the second eccentric gear 7, the first gear 11, the second gear 13, and / or the third gear 13 may be a split gear and / or have at least two gear halves connected to each other. The gear halves may be connected and / or fastened to each other via springs, such as torsion springs or omega springs. Alternatively or additionally, the gear halves may be connected and / or fastened to each other using an elastic material. The elastic material may be disposed between the gear halves. The elastic material may be or include, for example, an elastomer. When a gear is split, the splitting may improve or enhance contact and / or meshing between the teeth of the split gear and the teeth of another gear. Gear play may be reduced or even eliminated.

[0071] The drive device 10 may also have a shaft 14. The shaft 14 may extend generally parallel to the outer eccentric sleeve 2 and the inner eccentric sleeve 3, for example, parallel to the axial direction C. The shaft 14 may connect the second gear 12 to the third gear 13. Thus, when the shaft 14 rotates, the outer eccentric sleeve 2 may rotate in the opposite direction relative to the inner eccentric sleeve 3. In some embodiments, the gear ratios between the first gear 11 and the first eccentric gear 6, the gear ratio between the second gear 12 and the first gear 11, and the gear ratio between the third gear 13 and the second eccentric gear 7 may be selected such that when the shaft 14 rotates, the outer eccentric sleeve 2 and the inner eccentric sleeve 3 rotate in the opposite direction relative to each other by the same angular amount. In some embodiments, the respective gear ratios may be selected by appropriate numbers of teeth on the respective gears.

[0072] The driver 10 may be configured to drive and / or rotate and / or apply torque to the shaft 14 .

[0073] The drive 10 may include a manually adjustable, electric motor, a stepper motor, an encoder drive, and / or a hydraulic motor.

[0074] The bearing adjustment device 1 may include a second drive (not shown) that may be configured to drive the inner eccentric sleeve 3 and / or the outer eccentric sleeve 2. The second drive may have one, some, or all of the features and / or advantages of the drive device 10. The second drive may include a manual adjustment, an electric motor, a stepper motor, an encoder drive, and / or a hydraulic motor.

[0075] By pretensioning both drives relative to one another, the position of the eccentric sleeves 2, 3 can be kept free of play. For example, one drive can be blocked while the other can accumulate a defined preload with a desired torque to eliminate backlash. In some embodiments, the second drive can be configured to drive and / or rotate the shaft 14 and / or apply a torque to the shaft 14. The drive 10 and the second drive can rotate the shaft 14 in the same and / or opposite rotational directions and / or apply torques to the shaft 14 in the same or opposite directions and / or with the same or different magnitudes, respectively.

[0076] The shaft 14 may be rotatably mounted by a gear rolling bearing 19 in the bearing adjusting device 1 and / or a housing 17 of the bearing adjusting device 1. The shaft 14, the second gear 12 and / or the third gear 13 may be axially fixed by a gear retaining ring 20. The first gear 11 may be connected to a gear shaft 18. The gear shaft 18 may be rotatably mounted by a gear rolling bearing 19 in the bearing adjusting device 1 and / or a housing 17 of the bearing adjusting device 1. The first gear 11 and / or the gear shaft 18 may be axially fixed by a gear retaining ring 20.

[0077] In some embodiments, the housing 17 of the bearing adjusting device 1 may have a first housing part 22 and a second housing part 23. The first housing part 22 may include a portion of the outer eccentric sleeve holder 25 and / or the eccentric sleeve bearing 24. The second housing part 23 may include another portion and / or the remaining portion of the outer eccentric sleeve holder 25 and / or the eccentric sleeve bearing 24. The first housing part 22 and the second housing part 23 may be connected to each other via a connecting element 21. The connecting element 21 may include a screw and / or a bolt. For example, the first housing part 22 and the second housing part 23 may be screwed together. When the housing 17 has the first housing part 22 and the second housing part 23, the bearing adjusting device 1 can be assembled, mounted, and / or disassembled in a simple and easy manner.

[0078] As can be seen in FIG. 5 , for example, the inner eccentric sleeve 3 can protrude beyond the outer eccentric sleeve 2. This means that the inner eccentric sleeve 2 can be axially fixed or can become fixed relative to the outer eccentric sleeve 3. In some embodiments, the first eccentric gear 6 and / or a web protruding from the inner eccentric sleeve 3 can fix the inner eccentric sleeve 3 relative to the outer eccentric sleeve 3 in a first axial direction. The inner eccentric sleeve 3 can have a first retaining ring 15 that can axially fix the inner eccentric sleeve 3 relative to the outer eccentric sleeve 2. For example, the first retaining ring 15 can fix the inner eccentric sleeve 3 relative to the second eccentric sleeve 2 in a second axial direction. The first axial direction and the second axial direction can be opposite to each other. Thus, in some embodiments, the inner eccentric sleeve 3 can be axially fixed relative to the outer eccentric sleeve 2 by the first retaining ring 15 and the first eccentric gear 6 and / or the protruding web.

[0079] For example, as can be seen in FIG. 5 , the outer eccentric sleeve 2 can protrude beyond the eccentric sleeve bearing 24, thereby rotatably mounting the outer eccentric sleeve 2 relative to the housing 17 and / or the bearing adjusting device 1. Therefore, the outer eccentric sleeve 2 can be easily fixed or become fixed axially relative to the eccentric sleeve bearing 24 or the housing 17 and / or the bearing adjusting device 1. In some embodiments, a web protruding from the second eccentric gear 7 and / or the outer eccentric sleeve 2 can fix the outer eccentric sleeve 2 relative to the eccentric sleeve bearing 24 in a first axial direction. The outer eccentric sleeve 2 can have a second retaining ring 16 that can axially fix the outer eccentric sleeve 2 relative to the eccentric sleeve bearing 24. For example, the second retaining ring 16 can fix the outer eccentric sleeve 2 relative to the eccentric sleeve bearing 24 in a second axial direction. The first axial direction and the second axial direction can be opposite to each other. Thus, in some embodiments, the outer eccentric sleeve 2 can be fixed axially relative to the eccentric sleeve bearing 24, or the housing 17 and / or the bearing adjustment device 1, by the second retaining ring 16 and the second eccentric gear 7 and / or the protruding web.

[0080] An exemplary embodiment of a calender 100 according to the present invention is shown in Figure 6. The calender 100 comprises at least one bearing adjusting device 1 according to the present invention (not shown in Figure 6). The bearing adjusting device 1 may have one, some or all of the features of the bearing adjusting devices 1 shown in Figures 1 to 5 and described above.

[0081] The calender 100 includes a roller pair formed of two rollers 102. A roller nip 104 is formed between the rollers 102. The calender 100 can be configured to manufacture a web-like material and / or be used in at least one step of a manufacturing process. For example, the calender 100 can be used to manufacture a film, such as a plastic film. In some embodiments, a material, such as a plastic material, can be introduced into the nip 104 and formed into a film, such as a plastic film, by the rollers 102. The bearing adjustment device 1 can be used to vary the roller nip 104, for example, to adjust the film thickness or film quality. In some other embodiments, the calender 100 can be configured or used to coat a web-like carrier. The web-like carrier is guided through the nip, and one or both of the rollers 102 can be configured to apply a coating material to the web-like carrier. The bearing adjustment device 1 can serve to vary the roller nip 104, for example, to adjust the thickness and / or quality of the coating and / or the coated web-like carrier. In some other embodiments, the calender 100 may be configured to be used for powder grinding and / or to produce polymer-metal dry films. In some other embodiments, the calender 100 may be configured or used to produce electrodes, particularly dry electrodes, and / or electrode precursors.

[0082] The bearing adjustment devices 1 can support the lateral ends of the rollers 102. When the central axis A of the receiver 4 of the bearing adjustment device 1 is adjusted in the adjustment direction V (and / or, in some embodiments, alternatively or additionally, in the direction H), the rotation axis of the rollers 102 can be adjusted accordingly. In some embodiments, both ends of the rollers 102 can be supported by the respective bearing devices 1. In some embodiments, both rollers 102 of a roller pair and / or both lateral ends of both rollers 102 of a roller pair can be supported by the respective bearing devices 1. By adjusting the central axis A of one, some, or all of one or more bearing adjustment devices 1, one or both rollers 102 can be rotated or axially crossed relative to the other roller 102 of the roller pair. One, some, or all of the bearing adjustment devices 1 can be adjusted equally. This allows the axis crossing of the rollers 102 and / or the thickness of the roller nip 104 to be flexibly and easily adjusted, even during operation.

[0083] The calender may have a powder hopper 101. The powder hopper 101 may be filled with a powdered electrode film precursor material. The powder hopper 101 may be configured to deliver the electrode film precursor material to a roller nip 104. The electrode film precursor material delivered to the roller nip 104 may be compressed by rollers 102.

[0084] In some embodiments, the calender 100 may include support rollers 103. The support rollers 103 may be positioned to laterally support the rollers 102 of the roller pair, for example to support the rollers 102 against lateral forces. In some embodiments, the support rollers 103 may contact the rollers 102. The calender 100 may have two support rollers 103, and each of the rollers 102 of the roller pair may be laterally supported by one of the support rollers 103.

[0085] In some embodiments, one or both of the support rollers may be supported at one or both lateral ends by a respective further bearing adjustment device 1. Thus, the support rollers 103 can be adjusted accordingly when adjusting the rollers 102 (e.g., in the adjustment direction V and / or in the direction H) to ensure lateral support even when the rollers 102 are adjusted.

[0086] The bearing adjusting device 1 can also be used to adjust an engraving or embossing roller. An engraving or embossing device can have one or more bearing devices 1. An engraving device can have, for example, at least one engraving roller to which the bearing device 1 can be attached. An embossing device can have, for example, at least one embossing roller to which the bearing device 1 can be attached. For example, by adjusting the height and / or position of the engraving roller and / or embossing roller, the bearing adjusting device 1 can adjust the engraving and / or embossing force exerted on an object to be engraved or embossed by the engraving roller and / or embossing roller. Depending on the material of the object to be embossed or engraved and / or the type, shape, or, for example, depth of the engraving or embossing, the bearing adjusting device 1 can appropriately or suitably adjust the engraving roller and / or embossing roller, and / or the engraving roller and / or embossing roller can be adjusted by the bearing adjusting device 1.

[0087] The present invention further relates to a method for manufacturing an electrode film (not shown). A powdered electrode film precursor material can be compressed by a calender 100, as described above. As described above, at least one of the rollers can be rotated and / or axially crossed relative to the other roller to ensure good and uniform quality of the compressed electrode film precursor material.

[0088] After compression, the compressed electrode film precursor material can be formed into a film. In some embodiments, the electrode film precursor material can be compressed to a thickness greater than the thickness of the electrode film precursor material that is subsequently laminated to a metal foil. The compressed electrode film precursor material can be further compressed after compression. For this purpose, for example, an additional pair of rollers can be provided. The additional pair of rollers can have an appropriate roller nip width, which can be smaller than the nip width of, for example, roller nip 104 of roller 102 for compressing the powdered electrode film precursor material. To further press the compressed electrode film precursor material, one or both rollers of the roller pair can be equipped with one or more bearing adjustment devices 1 described above.

[0089] After further pressing, the further pressed electrode film precursor material may be formed into a film. The thickness of the further pressed electrode film precursor material may be smaller than the thickness of the compressed electrode film precursor material. The thickness of the further pressed electrode film precursor material may correspond to the thickness of the electrode film precursor material that is subsequently laminated onto a metal foil.

[0090] The further pressed electrode film precursor material can then be laminated to a metal foil to form an electrode film. The lamination can be performed using additional roller pairs, and in some embodiments, the additional roller pairs can be equipped with at least one bearing adjustment device 1. In some embodiments, the further pressed electrode film precursor material can be laminated to both sides of the metal foil, thereby forming a double-sided laminated electrode film.

[0091] In some embodiments, the compressed electrode film precursor material may already have a thickness that allows it to be laminated to a metal foil to form an electrode film. In such cases, further pressing can be omitted so that the compressed electrode film precursor material can be laminated onto the metal foil during lamination. In some embodiments, further pressed electrode film precursor material can be laminated to both sides of the metal foil, thereby forming a double-sided laminated electrode film.

[0092] The formed electrode film can be used, for example, to manufacture a dry electrode.

[0093] The features of the invention disclosed in the above description, in the drawings and in the claims may be essential to the implementation of the invention both individually and in any combination. [Explanation of symbols]

[0094] 1 Bearing adjustment device 2 outer eccentric sleeve 3 Inner eccentric sleeve 4. Receiver 5 center point 6 First eccentric gear 7 Second eccentric gear 8 First Side 9 Second Side 10 Drive unit 11 First Gear 12 Second Gear 13 Third Gear 14 shaft 15 First retaining ring 16 Second retaining ring 17. Housing 18 gear shaft 19 Gear rolling bearings 20 Gear retaining ring 21 Connecting Elements 22 first housing part 23 Second housing part 24 Eccentric sleeve bearing 25 Outer eccentric sleeve holder 26 Inner eccentric sleeve holder 100 Calendar 101 Powder hopper 102 Laura 103 Support roller 104 Roller Nip d distance V adjustment direction H: direction perpendicular to the displacement direction A center axis B Adjusted central axis C-axis direction

Claims

1. The bearing adjustment device (1) comprises a rotatably mounted outer eccentric sleeve (2) and a rotatable inner eccentric sleeve (3) received within the outer eccentric sleeve (2), the inner eccentric sleeve (3) having a support (4), the outer eccentric sleeve (2) and the inner eccentric sleeve (3) being rotatable relative to each other, preferably in opposite directions, and configured such that upon relative rotation, preferably reverse rotation, of the outer eccentric sleeve (2) with respect to the inner eccentric sleeve (3), the central axis (A) of the support (4) is adjusted in an adjustment direction (V), preferably vertically.

2. 2. The bearing adjusting device (1) according to claim 1, wherein the central axis (A) of the support (4) is adjustable in the adjustment direction (V) by a maximum distance (d) of up to 20 mm, preferably up to 15 mm, particularly preferably 12 mm.

3. 3. The bearing adjustment device (1) according to claim 1 or 2, wherein the outer eccentric sleeve (2) and the inner eccentric sleeve (3) are configured such that when the outer eccentric sleeve (2) is rotated in the opposite direction relative to the inner eccentric sleeve (3), the central axis (A) of the receiver (4) is not adjusted in a direction (H) perpendicular to the adjustment direction (V), preferably in a horizontal direction.

4. A bearing adjusting device (1) according to any one of the preceding claims 1 to 3, wherein the inner eccentric sleeve (3) has a first eccentric gear (6), preferably the first eccentric gear (6) is or has a non-circular gear.

5. A bearing adjusting device (1) according to any one of the preceding claims 1 to 4, wherein the outer eccentric sleeve (2) has a second eccentric gear (7), preferably the second eccentric gear (7) is or has a non-circular gear.

6. A bearing adjusting device (1) according to claim 5 with reference to claim 4, wherein the first eccentric gear (6) is arranged on a first side of the bearing adjusting device (1) and the second eccentric gear (7) is arranged on a second side of the bearing adjusting device (1), the second side being arranged opposite to the first side.

7. 7. The bearing adjusting device (1) according to any one of the preceding claims 1 to 6, wherein the bearing adjusting device (1) comprises a drive device (10) designed to drive and / or rotate the inner eccentric sleeve (3) and / or the outer eccentric sleeve (2).

8. 8. The bearing adjusting device (1) according to claim 7, wherein the drive device (10) comprises a first gear (11) connected to the first eccentric gear (6), a second gear (12) connected to the first gear (11), and a third gear (13) connected to the second eccentric gear (7), preferably the first gear (11) being a first spur gear, preferably the second gear (12) being a second spur gear, and preferably the third gear (13) being a third spur gear.

9. 9. The bearing adjusting device (1) of claim 8, wherein the drive device (10) has a shaft (14) connecting the second gear (12) to the third gear (13), and preferably the shaft (14) extends substantially parallel to the inner eccentric sleeve (3) and the outer eccentric sleeve (2).

10. 10. The bearing adjusting device (1) according to claim 9, wherein the transmission ratio of the first gear (11) to the first eccentric gear (6), the transmission ratio of the second gear (12) to the first gear (11), and the transmission ratio of the third gear (13) to the second eccentric gear (7) are selected so that when the shaft (14) rotates, the inner eccentric sleeve (3) rotates relative to the second eccentric sleeve (2) by the same angle but in opposite directions.

11. 11. A bearing adjusting device (1) according to any one of the preceding claims 4 to 10, wherein at least one of the first eccentric gear (6), the second eccentric gear (7), the first gear (11), the second gear (12) and / or the third gear (13) is a split gear and / or has at least two gear halves connected to each other.

12. A bearing adjusting device (1) according to any one of the preceding claims 7 to 11, comprising a second drive device designed to drive the inner eccentric sleeve (3) and / or the outer eccentric sleeve (2).

13. A bearing adjusting device (1) according to any one of the preceding claims 1 to 12, wherein the outer eccentric sleeve (2), the inner eccentric sleeve (3) and the receiver (4) are arranged parallel to one another.

14. 14. A bearing adjusting device (1) according to any one of the preceding claims 1 to 13, wherein the first eccentric gear (6) is arranged to axially fix the inner eccentric sleeve (3) relative to the outer eccentric sleeve (2), and the inner eccentric sleeve (2) preferably has a first retaining ring (15) that axially fixes the inner eccentric sleeve (3) relative to the outer eccentric sleeve (2), and the first retaining ring (15) is preferably arranged opposite the first eccentric gear (6).

15. 15. A bearing adjusting device (1) according to any one of the preceding claims 1 to 14, wherein the outer eccentric sleeve (2) is rotatably mounted in a housing (17), the second eccentric gear (7) axially fixes the outer eccentric sleeve (2) relative to the housing (17), and preferably the outer eccentric sleeve (2) has a second retaining ring (16) which axially fixes the outer eccentric sleeve (2) relative to the housing (17), and preferably the second retaining ring (16) is arranged opposite the second eccentric gear (7).

16. The bearing adjusting device (1) according to any one of the preceding claims 1 to 15, wherein the bearing adjusting device (1) has a bearing arranged in the receiver (4), the bearing preferably being or having a rolling bearing.

17. A calender (100) comprising a bearing adjustment device (1) according to any one of the preceding claims 1 to 16 and a pair of rollers (102) having a roller nip (104) between them, one of the rollers (102) being supported by the bearing adjustment device (1).

18. A calender (100) according to claim 17, wherein each of the rollers (102) of the roller pair is mounted at its lateral end by a respective bearing adjusting device (1) according to any one of the preceding claims 1 to 14.

19. A calender (100) according to any one of the preceding claims 17 to 18, comprising a powder hopper (101) for filling said roller nip (104) with powder.

20. A calender (100) according to any one of the preceding claims 17 to 19, comprising a support roller (103), said support roller (103) laterally supporting one of said rollers (102) of said roller pair.

21. Calender (100) according to claim 20, wherein said support rollers (103) are mounted by means of a further bearing adjusting device (1) according to any one of the preceding claims 1 to 16.

22. 22. The calender (100) according to any one of the preceding claims 17 to 21, wherein one of the rollers (102) of the roller pair is rotated and / or axially crossed relative to the other of the roller pair by adjusting the central axis (A) of the receiver (4) of the bearing adjustment device (1) in the adjustment direction (V).

23. A method for producing a web-like product using a calender (100), comprising the steps of: - feeding a precursor material into the roller nip (103) of the roller pair (102) of said calender (100); - a process for producing said web-like product, wherein at least one of said rollers (102) of said roller pair contacts said precursor material in said roller nip (104), The method includes adjusting the central axis (A) of the bearing adjusting device (1) according to any one of claims 1 to 16, wherein during the production of the web-like product, at least one of the rollers (102) of the roller pair is rotated and / or axially crossed relative to the other roller (102), and the adjustment and / or axial crossing of the rollers (102) is supported by an adjusting device (V) which supports the rollers (102).

24. 24. The method of claim 23, wherein the precursor material comprises plastic, the web-like product is a plastic film, and the precursor material is formed into the plastic film by the roller (102) during manufacturing of the web-like product.

25. 24. The method of claim 23, wherein the precursor material comprises a web-like carrier, one of the rollers (102) is or comprises a coating roller, and a coating agent is applied to the web-like carrier by the coating roller in producing the web-like product.

26. the precursor material comprises a powdered electrode film precursor material, and providing the precursor material in the method comprises: - filling the powder hopper (101) of the calender (100) with powdered electrode film precursor material; - introducing the powdered electrode film precursor material from the powder hopper (101) into the roller nip (103) of the roller pair of the calender (100), 24. The method of claim 23, wherein producing the web-like product includes compressing the powdered electrode film precursor material with the rollers (102) of the roller pair of the calender (100).

27. 27. The method of claim 26, wherein after compressing the electrode film precursor material, the compressed electrode film precursor material is further pressed, preferably with an additional pair of rollers.

28. 28. The method of claim 26 or 27, wherein the compressed and / or further pressed electrode film precursor material is compressed and / or pressed into a film.

29. 29. The method of any one of the preceding claims 26 to 28, wherein an electrode film is formed, and forming the electrode film comprises laminating the compressed and / or further pressed electrode film precursor material onto a metal foil.

30. 30. The method of claim 29, wherein forming the electrode film comprises laminating a first compressed electrode film precursor material and / or a first further compressed electrode film precursor material to a first side of the metal foil and laminating a second compressed electrode film precursor material and / or a second further compressed electrode film precursor material to a second side of the metal foil opposite the first side.

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