Device and method for producing a document body

Abstract

Device for producing a document body (2), characterized in that the device comprises a device (1) for positioning a document body and at least one device (200) for providing a laser beam, wherein the device (1) comprises a holding device, at least one linear drive device (10) and at least one support element (4) for the document body (2), wherein the at least one linear drive device (10) is mounted on the holding device, wherein a linearly movable output element (12) of the linear drive device (10) is connected to the support element via a rotary bearing device (7), wherein the support element (3) is mounted on the holding device via a further rotary bearing device (5) or is connected via the further rotary bearing device (8, 9) to a linearly movable output element (22, 32) of a further linear drive device (20, 30), wherein the further rotary bearing device (5, 8,9) enables a rotation with multiple degrees of freedom.

Description

[0001] The invention relates to a device and a method for producing a document body, in particular a valuable and / or security document.

[0002] The production of documents, in particular valuable and / or security documents, usually takes place in several production or process steps. One production step can, for example, be the transfer of information to an RFID device in the document body. A further production step can be laser marking of the document body. For and / or during the execution of a production step, it may be necessary to hold a document securely. Furthermore, it may be necessary to change the position and / or orientation of a held document, whereby a secure holding state for the document should be achievable in as many positions as possible, or a release of a held document should be possible. In order to reduce the installation space for a corresponding holding device, it is also desirable to design and arrange the elements required for holding the document in a space-saving manner.

[0003] EP 2 733 099 B1 relates to a laser customization device for documents. The document describes a document selection device comprising at least two collecting devices, also referred to as magazines. These serve to hold documents. Furthermore, the document selection device comprises a receiving opening for feeding individual documents and document guide means for selectively guiding the fed document to one of the at least two magazines. A turntable is also described.

[0004] EP 2 648 919 B1 also describes such a laser customization device.

[0005] US 2014 / 0056680 A1 discloses a booklet processing device with a clamping system and a support plate. This support plate can be rotated using an actuator.

[0006] US 6 783 067 B2 discloses a passport production system.

[0007] DE 10 2012 219 687 A1 discloses a method and a device for positioning a document.

[0008] US 8 956 068 B2 discloses movable or adjustable platforms and tripods, in particular a kinematic platform with three legs that offers six degrees of freedom with controlled braking at each joint and high mobility in the working area.

[0009] During production, a laser is often used to mark the surface of a document body. Of course, a layer beneath a cover layer of the document body, especially a transparent cover layer, can also be marked with a laser. In this case, it is desirable to expose the surface to laser radiation of different diameters in order to achieve different marking properties. This can be achieved, among other things, by setting different working distances and / or changing the focal length of the laser beam.

[0010] For laser marking or producing special features on valuable and / or security documents, in particular for producing CLI (changeable laser image) or MLI (multi laser image) elements, it may be necessary, among other things, to set a desired marking angle. The marking angle can refer to the angle of incidence of the laser beam relative to the surface to be marked. For this purpose, the surface to be processed can be rotated about at least one rotation axis, which is preferably coplanar to the marking surface and arranged in the same plane as the feature to be produced. When setting different marking angles, it is usually necessary to readjust the working distance or focal length of the laser beam after changing the angle.

[0011] Typically, rotational movements for setting different marking angles are generated by rotating around two independent axes, each with a motor. A first motor for rotation around a first axis is usually firmly connected to the structure for rotation around the second axis and must be rotated by the second motor. Cables of the first motor, especially power and signal cables, must be routed flexibly accordingly. To set different working distances, it may be necessary to provide a third motor, which must move the entire structure with the first and second motors and the associated cables to implement the rotational movements.

[0012] The technical problem is to create a method and a device for positioning a document body that enable highly precise, yet cost-effective and easy-to-implement positioning of the document body, in particular for setting a desired labeling angle. Furthermore, the technical problem is to create a device and a method for producing a document body that enable production with the desired quality.

[0013] The solution to the technical problem results from the objects having the features of claims 1 and 12. Further advantageous embodiments of the invention result from the subclaims.

[0014] A device for positioning a document body is proposed. This device can also be described as a device for aligning the document body. The document body can, in particular, be a document body of a valuable and / or security document. Positioning can refer to the setting or changing of a position and / or orientation of the document body in a reference coordinate system.

[0015] The device for production comprises a device for positioning a document body according to one of the embodiments disclosed in this disclosure. Furthermore, the device comprises at least one device for providing a laser beam. This device for providing a laser beam can, for example, comprise a device for generating the laser beam. Furthermore, the device can comprise at least one device for beam guidance and / or at least one device for beam shaping. In particular, the device can comprise at least one device for changing a focal length of the laser beam.

[0016] A document body can, in particular, be a document body of a valuable and / or security document. A document body can, in particular, also be a so-called document blank. Such a document body can, for example, be designed as a plastic body. However, it is of course also possible for document bodies to comprise other materials, for example, paper, metal foils, exposed holograms, or even, in particular, microelectronic circuits and microchips.

[0017] Document bodies can already be at least partially personalized and / or individualized. This can mean that the document body already contains or has been incorporated into the document body information that is specific to a person authorized to maintain the document. Of course, the document body can also include or contain additional features, in particular security features or security elements. Security and / or valuable documents are documents that have at least one security feature that makes imitation, falsification, copying, or similar at least difficult or impossible. In particular, security documents that embody value can be referred to as valuable documents. Security documents can be, for example, passports, identity cards, identification cards, access cards, driver's licenses, tickets, but also packaging and certificates of authenticity.Valuable documents can be, for example, postage stamps, banknotes, shares, customs stamps and the like.

[0018] The document body can be positioned relative to a reference coordinate system. The reference coordinate system can be defined, in particular, by a vertical direction, a longitudinal direction, and a transverse direction, whereby these directions can be oriented perpendicular to one another. In a reference position, a surface of the document body and, as explained in more detail below, a support surface of a support element of the device can be oriented perpendicular to the vertical direction. In this case, the plane spanned by the longitudinal and transverse directions can be oriented parallel to the surface of the document body or the support surface.

[0019] The device comprises at least one holding device. The holding device can refer to a set of mechanically rigid elements, i.e., fixed to one another. The holding device or the elements of the holding device can, in particular, be fixed relative to the reference coordinate system described.

[0020] The device further comprises at least one linear drive device. The linear drive device can comprise at least one linear actuator and at least one linear axis. The linear axis can be movable along a linear motion trajectory.

[0021] The device further comprises at least one support element for the document body. The support element can also be referred to as a workpiece carrier. The support element can have or form a support surface for the document body. This support surface can, in particular, be a flat, level surface.

[0022] Furthermore, the at least one linear drive device is mounted on the holding device. For the purposes of this invention, a bearing refers to a mechanical connection which, depending on the design of the bearing, permits no movement or a relative movement of the parts connected to one another via the bearing. As explained in more detail below, the at least one linear drive device can be rigidly attached to the holding device, i.e., non-rotatable and non-translatable. However, it is also possible for the at least one linear drive device to be mounted on the holding device so that it can rotate about one or more axes of rotation, preferably about exactly two axes of rotation.

[0023] Furthermore, a linearly movable output element, in particular the explained linear axis, of the linear drive device is connected to the support element via a rotary bearing device. The rotary bearing device can in particular be a ball bearing. The rotary bearing device can comprise a part on the output element side and a part on the support element side. It is possible for the rotary bearing device or the part of the rotary bearing device on the support element side to be arranged stationary relative to the support element. However, as explained in more detail below, it is also possible for the rotary bearing device or the part of the rotary bearing device on the support element side to be arranged movable, in particular with one or two linear degrees of freedom, relative to the support element or to be connected to it.

[0024] A pivot bearing device enables rotation with multiple degrees of freedom, in particular three degrees of freedom, i.e., around multiple axes of rotation. In particular, the support element can be connected to the output element or output elements via the pivot bearing device in such a way that a rotational movement of the support element around one or two axes of rotation is possible.

[0025] Furthermore, the support element is mounted on the holding device via a further pivot bearing device. This further pivot bearing device or the part of the further pivot bearing device on the support element side can be arranged in a fixed position relative to the support element.

[0026] Alternatively, the support element can be connected to a further linear drive device via the further pivot bearing device with a linearly movable output element, in particular a linear axis. In this case, too, the further pivot bearing device or the support-element-side part of the further pivot bearing device can be arranged stationary or movable relative to the support element with one or two linear degrees of freedom of movement.

[0027] It is also possible for the support element to be mounted on the holding device via at least one additional fixed bearing.

[0028] This advantageously results in a simple change of at least one orientation of a document body resting on the support surface of the support element relative to the reference coordinate system through a linear movement of the output element of the at least one linear drive device. By changing the orientation, the angle of incidence of a laser beam on the document surface or the position of the document body can also be changed. This can be used particularly advantageously for producing special features of the document body, in particular for producing CLI or MLI elements.

[0029] Furthermore, it may also be possible to adjust a working distance from a device for providing a laser beam, which will be explained in more detail below, by the linear movement of the output element of the at least one linear drive device.

[0030] A working distance can refer to a distance between a document body arranged on the support surface and the device for providing a laser beam, in particular a reference point of this device, e.g., an element focusing the laser beam, which is measured along the vertical direction of the reference coordinate system. The focal length of the laser beam can be changed by changing the divergence of the laser beam in front of the focusing element.

[0031] This in turn advantageously enables the position and orientation of the document body in the reference coordinate system to be adjusted. This in turn enables the setting of different angles of incidence for a laser beam provided by a device for providing a laser beam. Furthermore, by adjusting a working distance, the position of a focal point of the laser beam relative to the document body can be adjusted. By adjusting the angle of incidence and the position of the focal point, laser marking of the document body with desired marking properties can be carried out. However, the device is not limited to use for laser marking. The device can also be used to generate images of the document body in different positions and / or orientations and, if necessary, in different focal positions by means of an image capture device.

[0032] Overall, the device can be implemented cost-effectively and in a space-saving manner with a few components, while simultaneously enabling precise positioning of the document body. Furthermore, the device is less susceptible to failure during operation and has a low structural complexity.

[0033] In a further embodiment, the device comprises precisely one linear drive device, wherein the support element is mounted on the holding device via the further rotary bearing device. This has already been explained above. Furthermore, the support element is additionally mounted via at least one radial bearing device, in particular on the holding device. The radial bearing device can be arranged in a stationary manner, in particular relative to the holding device. The radial bearing device allows rotation about only one axis of rotation. The radial bearing device can be arranged and / or configured such that the support element is rotatable about a predetermined, desired axis of rotation, in particular the axis of rotation of the radial bearing device.

[0034] In particular, the radial bearing device can be arranged such that a rotation axis of the radial bearing device is oriented parallel to the previously explained longitudinal direction or parallel to the previously explained transverse direction of the reference coordinate system.

[0035] In this embodiment, the linear drive device is preferably mounted for rotation about one, more preferably two, axes of rotation. The axes of rotation can be oriented perpendicular to each other. In this case, the linear drive device is mounted on a gimbal. The first axis of rotation can be oriented parallel to the previously explained longitudinal direction, and the further axis of rotation can be oriented parallel to the previously explained transverse direction of the reference coordinate system when the support element is in the previously explained starting position.

[0036] This advantageously results in a particularly cost-effective implementation of the device. In this embodiment, a device for providing a laser beam, which will be explained in more detail below, can preferably comprise a device for changing the focus position of the laser beam.

[0037] In a further embodiment, the device comprises a first and a second linear drive device, i.e., precisely two linear drive devices, wherein the linear drive devices are each mounted on the holding device. Furthermore, linearly movable output elements of the linear drive devices are each connected to the support element via a rotary bearing device. In this embodiment, the support element can additionally be mounted on the holding device via a further rotary bearing device. However, it is not necessary for the support element to be mounted on the holding device via a further radial bearing device, which, for example, is arranged stationary relative to the holding device.

[0038] This advantageously results in the support surface of the support element being able to be rotated about at least one rotational axis, but preferably about two mutually perpendicular rotational axes, by the linear movement of the output elements. This, in turn, advantageously results in a document body resting on the support surface being able to be positioned in a variety of orientations.

[0039] In a further embodiment, the device comprises a first, a second, and a third linear drive device, i.e., exactly three linear drive devices. The linear drive devices are each mounted on the holding device, with linearly movable output elements of the linear drive devices each connected to the support element via a pivot bearing device. In this case, it is not necessary for the support element to be additionally mounted on the holding device via a pivot bearing device and / or a radial bearing device.

[0040] This also advantageously increases the number of orientations and / or working distances that can be set for a document body resting on the support surface.

[0041] In a further embodiment, the linear drive devices are each rigidly mounted on the holding device. Furthermore, a rotary bearing device or a support-element-side part of the rotary bearing device, via which an output element of a first linear drive device is connected to the support element, is mounted on the support element for linear movement. Furthermore, a further rotary bearing device or a support-element-side part of the further rotary bearing device, via which an output element of a further linear drive device is mounted on the support element, is mounted on the support element for free movement, in particular with two translational degrees of freedom.Thus, a direction of movement of the pivot bearing device or of the support element-side part along the support element can comprise a portion oriented along a first spatial direction and / or a portion oriented along a further spatial direction, wherein the first and further spatial directions are preferably but not necessarily oriented perpendicular to one another.

[0042] This advantageously eliminates the need for cardanic or rotating bearings for the linear drive systems. This, in turn, significantly reduces manufacturing costs.

[0043] In an alternative embodiment, at least one pivot bearing device is mounted on the holding device so that it can rotate about two different axes of rotation. In particular, the pivot bearing device can be mounted on the holding device in a gimbal manner. If the device comprises exactly one or exactly two linear drive devices, these can each be mounted on the holding device so that they can rotate about two different axes of rotation, preferably in a gimbal manner. If the device comprises three linear drive devices, at least one of the linear drive devices can be mounted on the holding device so that it can rotate about two different axes of rotation, and a further linear drive device can be mounted on the holding device so that it can rotate about one axis of rotation. The remaining linear drive device can then be rigidly mounted on the holding device.

[0044] This advantageously results in a simple and precise positioning of a document body resting on the support surface in a desired orientation.

[0045] In a further embodiment, the first and second linear drive devices are each cardanically mounted on the holding device.

[0046] In an alternative embodiment, the first linear drive device is rigid, the second linear drive device is rotatable about an axis of rotation and the third linear drive device is mounted on the holding device so that it can rotate about two different axes of rotation, in particular in a cardanic manner.

[0047] In a further embodiment, the directions of movement of the linear drive devices are oriented parallel to each other, at least in the initial position explained.

[0048] Furthermore, the linearly movable output element of the at least one linear drive device can also be moved in such a way that a desired working distance of the support surface from a device for providing a laser beam is set.

[0049] For this purpose, the device can comprise a control and evaluation device that controls the at least one linear drive device accordingly. The control and evaluation device can comprise a microcontroller or be designed as such.

[0050] The device for providing a laser beam can be arranged in a fixed position relative to the reference coordinate system. It is possible for the device for providing a laser beam to be mounted, in particular rigidly, on the holding device. In particular, a laser beam can be generated in a reference orientation parallel to the vertical direction of the reference coordinate system. However, the orientation of the laser beam can be changed by means for beam guidance, for example, mirror elements, in particular galvanomirror elements.

[0051] A working distance between the support element, in particular the support surface of the support element, and the device for providing a laser beam can be measured along the vertical direction. For example, the working distance can be measured as the distance between a reference point of the device for providing a laser beam and the support surface along the vertical direction. The reference point can, for example, be a geometric center of a focusing lens or a flat-field lens of the device for providing a laser beam.

[0052] By adjusting the working distance, the position of a focal point of the laser beam relative to the support surface and thus relative to a document body resting on this support surface can also be adjusted. Alternatively or additionally, it is of course also possible to change the relative position of the focal point to the support surface using a device for changing the focal length or focus position of the device for providing a laser beam.

[0053] This advantageously allows different angles of incidence of a laser beam relative to the document body to be set, with the laser beam serving to laser-mark the document body. If necessary, the position of a focal point of the laser beam relative to the document body can also be adjusted. This, in turn, advantageously enables laser marking with desired properties.

[0054] In a further embodiment, the device comprises at least one device for changing the focus position of the laser beam. This advantageously allows the position of the focus point to be adjusted relative to the document body.

[0055] In a further embodiment, the device for changing the focus position comprises a device for variable beam expansion and / or a focusing lens. The device for variable beam expansion can be designed, for example, as a beam expansion telescope.

[0056] This allows easy adjustment of the focus position.

[0057] Further proposed is a method for operating a device for producing a document body according to one of the embodiments disclosed in this invention. Here, the linearly movable output element of the at least one linear drive device is moved such that a desired position and / or orientation of the support surface is set in the reference coordinate system. Furthermore, a laser beam can be provided. The laser beam can be directed onto a document body arranged on the support surface.

[0058] In a further embodiment, a focus position of the laser beam is changed.

[0059] The invention is explained in more detail using exemplary embodiments. The figures show: Fig. 1 a schematic perspective view of a device according to the invention in a first embodiment, Fig. 2 a schematic perspective view of a device according to the invention in a further embodiment, Fig. 3 a schematic perspective view of a device according to the invention in a further embodiment and Fig. 4 a schematic perspective view of a device according to the invention in a further embodiment.

[0060] In the following, the same reference symbols designate elements with the same or similar technical features.

[0061] Fig. 1 shows a schematic perspective view of a device 1 for positioning a document body 2 according to a first embodiment. The device 1 comprises a workpiece carrier 3. This can be plate-shaped, for example. The workpiece carrier 3 has a support surface 4 for the document body 2. It is possible for the workpiece carrier 3 to have at least one fastening means, e.g., a clamping element or a suction element, for fastening the document body 2 to the support surface 4.

[0062] Also shown is a first ball joint 5 of the workpiece carrier 3, wherein the workpiece carrier 3 is mounted on a holding device (not shown) via this first ball joint 5. The first ball joint 5 enables a rotational movement of the mounted section of the workpiece carrier 3 in all directions, but not a translational movement.

[0063] Also shown is a reference coordinate system with a longitudinal axis x, a transverse axis y, and a vertical axis z. The axes x, y, and z are oriented at right angles to each other. Fig. In the initial position of the document body 2 shown in Figure 1, the vertical axis z is oriented perpendicular to the support surface 4 and to a top or front side of the document body 2. Also shown is a working distance 210, which is measured along the vertical axis z.

[0064] Also shown are a first fixed bearing 6a and a second fixed bearing 6b, with the workpiece carrier 3 being mounted on the holding device (not shown) either via the first fixed bearing 6a or via the second fixed bearing 6b. The first fixed bearing 6a or the second fixed bearing 6b each permits rotation but not translational movement of the mounted portion of the workpiece carrier 3.

[0065] The device 1 further comprises a first linear drive device 10, wherein the first linear drive device 10 comprises a first linear actuator 11 and a first linear axis 12. By operating the linear actuator 10, the first linear axis 12 can be moved in and against a direction oriented parallel to a central axis of symmetry of the first linear axis 12. The movement of the first linear axis 12 is thus a linear movement.

[0066] The first linear drive device 10, in particular the first linear actuator 11, is rotatably mounted on the holding device (not shown). In particular, the first linear drive device 10 is gimbal-mounted on the holding device. A first axis of rotation 13 and a second axis of rotation 14 are shown, with the first linear drive device being mounted on the holding device (not shown) for rotation about these axes of rotation 13, 14. Directions of rotation are indicated by arrows. The axes of rotation 13, 14 are preferably oriented at right angles to one another. The axes of rotation 13, 14 are also arranged at right angles to a trajectory of the linear movement of the linear axis 12.

[0067] A workpiece carrier-side end of the first linear axis 12 is fastened to the workpiece carrier 3 via a further ball bearing 7 of the workpiece carrier 3.

[0068] Also shown is a marking device 200. This marking device 200 can, for example, comprise a device for generating a laser beam. Furthermore, the marking device can comprise means for beam guidance and / or beam shaping of the laser beam. For example, the marking device 200 can comprise at least one device for adjusting a beam direction of a generated laser beam. For example, the marking device 200 can comprise a so-called galvanometer scanner. Furthermore, the marking device 200 can comprise at least one device for adjusting a focus position of the generated laser beam, for example, a variable beam expansion telescope. A downstream flat-field lens, also referred to as a focusing lens, focuses the laser beam onto the document body.

[0069] Also shown is a first axis of rotation 110 of the workpiece carrier 3. If the workpiece carrier 3 is mounted on the holding device (not shown) via the first fixed bearing 6a (and not via the second fixed bearing 6b), a rotary movement of the workpiece carrier 3 and thus of the document body 2 arranged on the support surface 4 of the workpiece carrier 3 about this first axis of rotation 110 can take place by a linear movement of the first linear axis 12, wherein the first axis of rotation 110 is oriented parallel to the transverse axis y of the reference coordinate system.

[0070] If the workpiece carrier 3 is mounted on the holding device (not shown) via the second fixed bearing 6b (and not via the first fixed bearing 6a), such a rotational movement can take place about the second axis of rotation 120 of the workpiece carrier 3, wherein the second axis of rotation 120 is oriented parallel to the longitudinal axis x of the reference coordinate system.

[0071] In the Fig. In the embodiment illustrated in Figure 1, the marking device 200 preferably comprises a device for varying the focal length of a laser beam. Although the device 1 allows the adjustment of the angle of incidence of a generated laser beam relative to the document body 2, it does not allow the adjustment of the working distance between the marking device 200 and the document body 2. Thus, it is not possible, or only possible to a limited extent, to adjust the focal position of the laser beam relative to the support surface 4 and thus also to the document body 2 by operating the linear drive device 10 and a linear displacement of the linear axis 11. However, this can be adjusted by changing the focal length and thus the focal position.

[0072] The labeling device 200 is also arranged in a stationary manner relative to the holding device (not shown), in particular fastened or mounted on the holding device.

[0073] Here, it is shown that the first ball bearing 5 is arranged in a first corner region of the workpiece carrier 3, and the further ball bearing 7 is arranged in a further corner region, preferably a diagonally opposite corner region, of the workpiece carrier 3. In particular, the connecting sections or connecting elements of the linear drive devices and the workpiece carrier 3, or of the holding device and the workpiece carrier, e.g., the ball bearings 5, 7 or the fixed bearings 6a or 6b, span a plane. The connecting sections or connecting elements of the holding device and the workpiece carrier 2, e.g., the fixed bearings 6a or 6b, can also span a plane.

[0074] Furthermore, the connecting sections or elements should be as far apart as possible. Therefore, the arrangement of the connecting sections may depend on the design of the document carrier.

[0075] In Fig. 2 is a schematic perspective view of a device 1 according to the invention for positioning a document body 2 in a further embodiment. Fig. The embodiment shown in Figure 2 is essentially the same as that shown in Fig. 1. Therefore, the explanation of Fig. 1. In contrast to the Fig. 1, the workpiece carrier 3 is in the embodiment shown in Fig. 2 does not have fixed bearings 6a, 6b (see Fig. 1) is mounted on a holding device. As a further difference, the device 1 comprises a second linear drive device 20, wherein the second linear drive device 20 comprises a second linear actuator 21 and a second linear axis 22. The second linear drive device 20, in particular the second linear actuator 21, is also rotatably mounted, in particular gimbal-mounted, on the holding device. A first axis of rotation 23 and a second axis of rotation 24 of the second linear drive device are shown, wherein the second linear drive device 20 is mounted on the holding device so as to be rotatable about these axes of rotation 23, 24. The axes of rotation 23, 24 are preferably oriented at right angles to one another. The axes of rotation are also arranged at right angles to a trajectory of the linear movement of the second linear axis 22.

[0076] The workpiece carrier 3 comprises a third ball bearing 8, wherein a workpiece carrier-side end of the second linear axis 22 is fastened to the workpiece carrier 3 via this third ball bearing 8.

[0077] By linearly moving the linear axes 12, 22, the angle of incidence of a laser beam generated by the marking device 200 onto the document body 2 can be adjusted. In this embodiment, the marking device 200 can also include a device for changing a focal length of the laser beam, in particular to adjust the focus position between the document body 2 and the marking device 200.

[0078] Fig. Figure 3 shows a perspective schematic view of a device 1 for positioning a document body 2 in a further embodiment. Fig. The embodiment shown in Figure 3 is essentially the same as that shown in Fig. 2. Therefore, reference is made to the explanations regarding Fig. 2. In contrast to the Fig. 2, the device 1, in particular the workpiece carrier 3, does not comprise a first ball bearing 5 for supporting the workpiece carrier 3 on a holding device (not shown). A further difference is that the device 1 in the embodiment shown in Fig. 3, comprises a third linear drive device 30. The third linear drive device 30 in turn comprises a third linear actuator 31 and a third linear axis 32. The third linear drive device 30, in particular the third linear actuator 31, is rotatably mounted on the holding device (not shown), preferably in a cardanic manner. A first axis of rotation 33 and a second axis of rotation 34 of the third linear drive device 30 are shown, wherein the third linear drive device 30 is rotatably mounted about these axes of rotation 33, 34 on the holding device. The axes of rotation 33, 34 are preferably oriented at right angles to one another. The axes of rotation are also arranged at right angles to a trajectory of the linear movement of the third linear axis 32.The device 1, in particular the workpiece carrier 3, comprises a further ball bearing 9, wherein a workpiece carrier-side end of the third linear axis 32 is fastened to the workpiece carrier 3 via this further ball bearing 9.

[0079] A linear movement of the three linear axes 12, 22, 32 allows both a working distance of the workpiece carrier 3, in particular the support surface 4 of the workpiece carrier 3 and thus a document body 2 resting on this support surface 4, to be adjusted from the marking device 200. Furthermore, an orientation of the support surface 4 relative to the marking device 200 can also be adjusted. This, in turn, advantageously enables the angle of incidence of a laser beam generated by the marking device 200 onto the support surface 4 or onto the document body 2 to be adjusted. The linear axes 12, 22, 32 are movable independently of one another.

[0080] Furthermore, in contrast to the Fig. 2, the first linear drive device 10 is not rotatable, but is arranged stationary on the holding device and thus relative to the fastening device. The second linear drive device 20 and the third linear drive device 30 are also stationary, but, as previously explained, are arranged rotatably relative to the labeling device. As a further difference to the embodiment shown in Fig. 2, the second linear drive device 20 is no longer cardanically mounted, but is mounted so as to be rotatable relative to the labeling device only about a single axis of rotation 23, i.e. the first axis of rotation 23.

[0081] If the linear drive devices 10, 20, 30 are rotatably mounted on the holding device and a linear axis 11, 21, 31 of a linear drive device is in a position in which the linear axis 11, 21, 31 is oriented parallel to the vertical direction, a first of the rotational axes 14, 24, 34, via which the respective linear drive devices 10, 20, 30 are mounted on the holding device, can be oriented parallel to the longitudinal axis x. A further rotational axis 13, 23, 33, via which the respective linear drive devices 10, 20, 30 are mounted on the holding device, can each be oriented parallel to the transverse axis y.

[0082] Through the Fig. In the embodiment shown in Figure 3, a working distance between the workpiece carrier 3 and the labeling device as well as the angle of incidence of the laser beam onto the support surface 4 can be adjusted.

[0083] In Fig. 3, a working distance is represented by an arrow 210.

[0084] Fig. 4 shows a schematic perspective view of a device 1 according to the invention in a further embodiment.

[0085] The Fig. The embodiment of the device 1 according to the invention shown in Figure 4 is essentially like the one shown in Fig. 3. Therefore, the explanation of Fig. 3. In contrast to the Fig. 3, all three linear drive devices 10, 20, 30 are arranged stationary and non-rotatable relative to the labeling device 200, in particular, they are mounted stationary and non-rotatably on a holding device (not shown). By a linear movement of the three linear axes 12, 22, 32, a working distance along a vertical direction z, i.e. a distance between the labeling device 200 and the support surface 4 of the workpiece carrier 3 and thus a document body 2, can be adjusted. As a further difference to the embodiment shown in Fig. In the embodiment shown in Figure 3, the ball bearing 8, which connects the workpiece carrier-side end of the second linear axis 22 to the workpiece carrier 3, is mounted on the workpiece carrier 3 for linear movement. The linear movement can be oriented, in particular, from a center point of the ball bearing 8 to the center point of the ball bearing 7, which connects the workpiece carrier-side end of the first linear axis 12 to the workpiece carrier 3. As a further difference, the ball bearing 9, which connects the workpiece carrier-side end of the third linear axis 32 to the workpiece carrier 3, is mounted on the workpiece carrier 3 for movement in any direction.

[0086] As linear actuators in the Fig. 1, Fig. 2, Fig. 3 and Fig. In the embodiments shown in Figure 4, for example, spindle motors, piezo-driven actuators, such as inchworm motors, or so-called piezoelectric actuators can be used. List of reference symbols 1 device 2 document bodies 3 workpiece carriers 4 support surface 5 ball bearings 6a first fixed camp 6b second fixed bearing 7 ball bearings 8 ball bearings 9 ball bearings 10 first linear drive device 11 first linear actuator 12 first linear axis 13 first rotation axis of the first linear drive device 14 second axis of rotation of the first linear drive device 20 second linear drive device 21 second linear actuator 23 first axis of rotation of the second linear drive device 24 second axis of rotation of the second linear drive device 30 third linear drive device 31 third linear actuator 32 third linear axis 33 first axis of rotation of the third linear drive device 34 second rotation axis of the third linear drive device 110 first rotation axis of the workpiece carrier 120 second rotation axis of the workpiece carrier 200 labeling device 210 Distance axis

Claims

[1] Device for producing a document body (2), characterized byin that the device comprises a device (1) for positioning a document body and at least one device (200) for providing a laser beam, wherein the device (1) comprises a holding device, at least one linear drive device (10) and at least one support element (4) for the document body (2), wherein the at least one linear drive device (10) is mounted on the holding device, wherein a linearly movable output element (12) of the linear drive device (10) is connected to the support element via a rotary bearing device (7), wherein the support element (3) is mounted on the holding device via a further rotary bearing device (5) or is connected via the further rotary bearing device (8, 9) to a linearly movable output element (22, 32) of a further linear drive device (20, 30), wherein the further rotary bearing device (5, 8, 9) enables rotation with several degrees of freedom. [2] Device according to claim 1, characterized by that the device (1) comprises exactly one linear drive device (10), wherein the support element (3) is mounted on the holding device via the further rotary bearing device (5), wherein the support element (3) is additionally mounted via at least one radial bearing device (6a, 6b). [3] Device according to claim 1, characterized by in that the device (1) comprises a first and a second linear drive device (10, 20), wherein the linear drive devices (10, 20) are mounted on the holding device, wherein linearly movable output elements (12, 22) of the linear drive devices (10, 20) are each connected to the support element (3) via a rotary bearing device (7, 8). [4] Device according to claim 1, characterized bythat the device (1) comprises a first, a second and a third linear drive device (10, 20, 30), wherein the linear drive devices (10, 20, 30) are mounted on the holding device, wherein linearly movable output elements (12, 22, 32) of the linear drive devices (10, 20, 30) are each connected to the support element (3) via a rotary bearing device (7, 8, 9). [5] Device according to claim 4, characterized by that the linear drive devices (10, 20, 30) are each rigidly mounted on the holding device, wherein a rotary bearing device (8) is linearly movable on the support element (3) and a further rotary bearing device (9) is freely movable on the support element (3). [6] Device according to one of claims 1 to 5, characterized by that at least one rotary bearing device (7, 8, 9) is mounted on the holding device so as to be rotatable about two mutually different axes of rotation (13, 14, 23, 24, 33, 34). [7] Device according to claim 3, characterized by that the first and second linear drive devices (10, 20) are each mounted on the holding device so as to be rotatable about two mutually different axes of rotation (13, 14, 23, 24). [8] Device according to claim 4, characterized by that the first linear drive device (10) is rigidly mounted on the holding device, the second linear drive device (20) is rotatable about an axis of rotation (23) and the third linear drive device (30) is rotatable about two mutually different axes of rotation (32, 34). [9] Device according to one of the preceding claims, characterized by that directions of movement of the linear drive devices (10, 20, 30) are oriented parallel to one another at least in an initial position of the support element (3). [10] Device according to claim 1, characterized by that the device comprises at least one device for changing a focus position of the laser beam. [11] Device according to claim 10, characterized by that the device for changing the focus position comprises a focusing lens. [12] Method for operating a device for producing a document body according to one of claims 1 to 11, wherein the linearly movable output element (11, 21, 31) of the at least one linear drive device (10, 20, 30) is moved such that a desired position and / or orientation of the support surface (4) is set. [13] Method according to claim 12, characterized by that the focus position of the laser beam is changed.

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