JP2014516317A - Apparatus for applying at least one medium to at least one substrate and method for reproducibly determining the rotational angular position of at least one first cylinder of an application apparatus - Google Patents

Abstract

  The present invention is an apparatus for applying at least one medium to at least one substrate, and the application apparatus includes at least one first cylinder and a frame that are rotatable, and includes at least one first cylinder. The barrel is disposed so as to be rotatable relative to at least one frame around the rotation axis, and the coating device includes at least one rotation angle control device, and the rotation angle control device includes at least In part and / or positionable at a reference pivot angle position relative to at least one first cylinder and at the same time a predetermined reference position relative to the frame. And the pivot angle control device is arranged in cooperation with and / or in cooperation with at least one reference mark and is non-contact with the pivot angle position of at least one first barrel The rotation angle control device includes at least one transmitter, and the transmitter includes at least one effective surface of at least one first body with respect to at least one transmission direction. The present invention relates to an arrangement in which the first cylinder is positioned and arranged toward an outer surface extending parallel to the rotation axis of the first cylinder. The invention also relates to a method for reproducibly determining the rotational angular position of at least one first cylinder.

Description

  The present invention provides an apparatus for applying at least one medium to at least one substrate according to the superordinate concept part of claim 1, and at least a first cylinder of the application apparatus according to the characteristic part of claim 15. The present invention relates to a method for determining a revolving angle position in a reproducible manner.

  In a device for applying a medium to a substrate, in particular a coating device configured as a printing press and / or a varnishing device, for example when replacing the first cylinder or drive device or when introducing such a new coating device In order to ensure, for example, a second cylinder and / or a board-like material and / or substrate to be printed conveyed by a conveying device, such cylinders can be used for example as a frame and / or a second cylinder. It is necessary to adjust the rotation angle position relative to the transport device and / or the drive device, that is, to move to the reference rotation position.

  The conventional general approach is to optimize such positioning based on iterative methods. In this case, the cylinder is first assembled and the rotational angular position of the cylinder is relatively rough or not prepositioned at all. In this case, at each iteration step, uncoated board-like material is coated, for example the actual value of the coating applied relative to the board-like material and relative to the board-like material. Based on the comparison with the target value of the coating, a correction value for the next iteration step is calculated. In this case, it is necessary to coat another board-like material and to stop and restart the coating apparatus for each iterative step. Thus, a plurality of, for example, 2 to 5 board-shaped materials and a relatively long period are required for each adjustment process.

  In the same way, in a device with a plurality of independent drive devices intended to coat a web-like substrate, it is applied by roughly adjusting the cylinder or for example a cylinder with its own drive device. On the basis of the comparison between the coating and the target value, it is usual to carry out the correction of the corresponding rotational angle position of the cylinder, for example by means of a circumferential register adjustment device. Even in this case, a relatively large number of sample or coating processes are required in part to achieve circumferential register optimization.

  A printing machine is known from EP 1 759 840 A1. This printing machine includes at least one rotatable cylinder and a frame. The at least one cylinder is disposed so as to be rotatable relative to the frame about the rotation axis. The printing press includes a rotation angle control device, the rotation angle control device at least partially at least at one reference rotation angle position relative to at least one first cylinder, and At the same time, it can be arranged at a reference position relative to the frame. In this case, the rotation angle control device is arranged so as to be able to cooperate with the reference mark, and is configured to be able to inspect the rotation angle position of at least one cylinder by a mechanical gauge and / or stopper. Yes.

  A printing press is known from German Offenlegungsschrift DE 102007017941. This printing machine includes at least one rotatable cylinder and a frame. The at least one cylinder is disposed so as to be rotatable relative to the frame about the rotation axis. The printing press includes at least one rotation angle control device, the rotation angle control device being at a reference rotation angle position relative to at least one cylinder and simultaneously relative to the frame. It is arranged at the reference position. In this case, the rotation angle control device is arranged in cooperation with at least one reference mark, and is configured to be able to inspect the rotation angle position of at least one cylinder.

  The problem underlying the present invention is to provide a device for applying at least one medium to at least one substrate and a method for reproducibly determining the rotational angular position of at least one first cylinder of the coating device. That is.

  This problem is solved by the structure described in the characterizing part of claim 1 and the structure described in the characterizing part of claim 15.

  An apparatus for applying at least one medium to at least one substrate comprises at least one rotatable first cylinder and at least one frame, wherein the at least one first cylinder is centered about an axis of rotation. The coating device is provided with at least one rotation angle control device, and at least part of the rotation angle control device is at least one. At least one reference pivot angle position relative to the first torso and at the same time relative to at least one frame relative to and / or positionable relative to the first cylinder. The moving angle control device is arranged in cooperation with and / or in cooperation with at least one reference mark and the rotation angle of at least one first body Inspection of non-contact type of position is configured to be. In particular, the rotational angle control device comprises at least one transmitter, the transmitter extending parallel to the axis of rotation of the effective surface of the at least one first body with respect to at least one transmission direction. It is positioned and arranged toward the outer surface.

  The advantage obtained by the present invention is, in particular, that an alignment mark can be formed in this way. This orientation mark is useful when adjusting the coating apparatus, and does not have an adverse effect on the operation of the coating apparatus.

  The coating device is a board-like and / or sheet-like material coating device or a web-like printing material coating device. In particular, the coating device may be, for example, a varnishing device for metal boards and / or a sheet-fed or web rotary offset printing press.

  Another advantage is that less board-like and / or sheet-like materials and / or substrates can be used, preferably up to the ideal operating situation of the applicator, preferably such materials 1 There is only one to use. In particular, it is not necessary to use a board-like material and a web-like substrate classification for basic adjustment. The total number of sample boards required is greatly reduced, for example to one. Due to the basic adjustment, the achievable positional accuracy of the rotational angular position of the at least one first cylinder depends, for example, on at least one signal of at least one transmitter, in particular on the dimensions of at least one light marking. , In the range of about 1 mm.

  Another advantage is that at least one signal, in particular at least one light marking, can be clearly measured on at least one first cylinder during transmission by at least one transmitter, in particular during projection by at least one light source. In particular visible and at least one signal, in particular at least one optical marking, has been removed from the at least one cylinder after transmission, in particular after projection. Thereby, it is possible to accurately adjust the rotational angle position of at least one first cylinder, which does not affect the coating operation. This means in particular that at least one signal, in particular at least one optical marking, does not change its chemical and mechanical properties of at least one first cylinder.

  Another advantage is that the pivot angle control device can be used in connection with all corresponding various cylinder diameters and / or recesses and / or projections of at least one first cylinder, This is particularly appropriate when using flexographic printing methods.

  Another advantage is that the pivot angle control device can be used in connection with all the corresponding various axial lengths, in which case there is no need to change the pivot angle control device. Absent.

  Another advantage is that the pivot angle control device does not affect another cylinder and / or board-like material and / or substrate to be coated.

  Another advantage is that there is no undesired asymmetry and / or imbalance in the rotating components, in particular at least one first cylinder, in connection with the pivot angle control device.

  Another advantage is that no additional deposits of dirt or coating residue are formed on the at least one first cylinder.

  Another advantage is that the markings can be measured directly on at least one first cylinder, in particular visible, and thus, for example, parallax errors can be eliminated, thus eliminating reading errors due to various viewing angles. .

  Another advantage resides in that the pivot angle control device can be located outside the hazardous area, for example an area at risk of explosion and / or an area having a suction action.

  Another advantage is that the risk to the operator is reduced because the operator's hand approach to the area of the rotating component requires less than in the case of a pivot angle gauge to be set manually. It is in.

  Another advantage of the embodiment in which at least one transmitter is preferably configured as at least one light source is that a visible marking can be projected with the naked eye in a correspondingly selected wavelength range of light.

  Another advantage of the embodiment in which the at least one light source is preferably configured as at least one laser source is that it can project markings that are particularly well visible and distinguishable and that are particularly precisely adjustable.

  Another advantage of the embodiment in which at least one first cylinder is preferably provided with at least one fiducial mark is that the transmitter does not have to be arranged on a rotatable component, so that, for example, the energy supply can be simplified. Therefore, a simple structure is realized. This advantage can be obtained alone or in a special form combined with a configuration in which at least one transmitter is arranged in at least one frame.

  Preferably at least one transmitter and more preferably at least one light source causes at least one signal and preferably at least one light marking to be at least on the effective surface of at least one first cylinder of the application device. Another advantage of the aspect of being projected and / or projectable on one area is that, in particular, this area is easier to see than for example the area of the journal of the trunk, so that the optical markings can be seen with the naked eye without another auxiliary means. It can be compared with a reference mark placed on the effective surface of the cylinder. Thus, the comparison between the target position and the actual position can be performed particularly easily.

  Preferably at least one signal, in particular at least one light marking, at least partially emits light from at least one transmitter, in particular at least one light source, and rotation of at least one first cylinder. Another advantage of the embodiment located on the straight connecting line connecting the points of the axis is that the marking can always be measured at the same angle on the surface of the cylinder, independently of the diameter of the cylinder, in particular Since it is visible, it is possible to eliminate reading errors caused by various viewing angles.

  Preferably at least one signal, in particular at least one light marking or a plurality of signals or light markings as a whole, is at least one signal or at least one light in an axial direction relative to the axis of rotation of at least one first cylinder. 10% of the axial length of the effective surface of the at least one first cylinder, preferably defined by the two outermost borders of the marking or of the plurality of signals or of the plurality of optical markings The advantage of embodiments having a stretch length greater than, more preferably greater than 30%, even more particularly preferably greater than 80% is that the axial stretch length of at least one signal or at least one optical marking This is to increase the reading accuracy with the increase of the length. This is in line with the actual situation. Because, on the one hand, the influence of the position of the worker is gradually reduced, on the other hand it is possible to use a cylinder with reference marks arranged in various axial positions, with that position of at least one transmitter This is because it is not necessary to change the direction.

  Preferably at least one signal, in particular at least one optical marking, is less than 10 mm, more preferably less than 5 mm, more particularly preferably in the circumferential direction with respect to the axis of rotation of at least one first cylinder. The advantage of an embodiment having a stretch length of less than 2 mm is that a finer signal and / or a finer optical marking can be better compared to a reference mark, since the shift becomes more important. This makes it possible to achieve an increased accuracy of the corresponding barrel angle adjustment.

  Preferably, at least one recess whose outer surface extending parallel to the rotational axis of the effective surface of at least one first cylinder is offset from the imaginary cylinder outer peripheral surface of at least one first cylinder. The advantage of the embodiment with the protrusions is that no separate markings on the cylinder are required since the recesses and / or protrusions already occupy a clear rotational angular position. In particular, this prevents additional imbalances associated with additionally placed fiducial marks.

  Another advantage of embodiments in which at least one recess and / or projection preferably has at least one edge extending in the direction of the axis of rotation of at least one first cylinder is such an edge. Has a rotational angle position that is clear and easily graspable.

  Another advantage of the embodiment wherein the at least one transmitter is preferably configured to be selectively switchable between at least one activated and deactivated operating state is that Savings and avoiding any impact on coating operation. In the activated operating state, at least one transmitter is arranged to transmit a signal. In the deactivated operating state, the at least one transmitter is preferably arranged not to transmit a signal.

  Another advantage of the embodiment wherein the at least one first cylinder is a coating cylinder that forms and / or can form a coating nip with a cylinder configured as an impression cylinder is that such a cylinder is In particular, it is possible to save a lot of material and time in the new coating process, which is frequently exchanged with a corresponding coating machine and therefore frequently occurs. The same applies to embodiments in which at least one first cylinder is a plate cylinder and / or a blanket cylinder (transition cylinder) of an offset rotary printing press. Such exchange is also possible for the impression cylinder.

  A method for reproducibly determining the rotational angular position of at least one first cylinder of a coating device relative to at least one frame of a device for coating at least one medium on at least one substrate, At least one step, wherein at least one transmitter emits at least one signal from at least one frame, the signal being at a rotational angular position of at least one first cylinder. The target value and / or at least one transmitter emits at least one signal from at least one first cylinder, the signal being transmitted by at least one first cylinder. The actual value of the angular position of the dynamic angle position, and then the actual value of the angular position of the at least one first cylinder and the target value are compared with each other. In this case, the rotational angle position of one of the first cylinders is adjusted by turning at least one of the first cylinders about the rotation axis of at least one of the first cylinders. The actual value and the target value of the rotation angle position of the first barrel of the book are made to coincide with each other within a predetermined tolerance range, and after the correction step, at least one of the first first is later. The rotational angle position of the first drive device coupled to the cylinder of the machine is stored in the storage device of the machine control device.

  Similarly, the advantage of this method is that a simple and already very precise pre-adjustment of the rotational angle position of the cylinder, in particular, is achieved, without the need for a coating process. In this way, an alignment mark is obtained that is useful when adjusting the coating apparatus and has no adverse effects during operation of the coating apparatus. As a result, the cylinder can be incorporated into a corresponding application device at any rotational angle position, and can be coupled and / or fixed to the drive device at the required rotational angle position. After installation, new adjustments can be made in a simple, precise, quick and economical manner.

  Preferably, at least one transmitter, preferably configured as a light source, transmits at least one signal, preferably configured as at least one optical marking, from a frame to a predetermined of at least one first cylinder. Projecting onto the outer surface of the active surface, preferably the outer surface of the effective surface, more preferably the outer surface of the effective surface extending parallel to the rotational axis of the at least one first cylinder and / or at least one first surface. Another advantage of the aspect of projecting from one cylinder to an area arranged in a fixed position relative to at least one frame is that the signal can be measured well, preferably relative to at least one first cylinder. There is no influence. In particular, signals configured as optical markings are well visible. The signal can also be transmitted from the frame, reflected by a corresponding area of the cylinder, and compared with a reference mark placed on the frame. In this case, a mirror is preferably arranged on at least one first cylinder.

  Preferably, the actual value of the rotational angle position of the at least one first cylinder and the target value are compared with each other, wherein at least one first cylinder of the at least one first cylinder is compared. The rotational angular position of at least one fiducial mark coupled to the one cylinder in a non-rotatable manner relative to the axis of rotation of at least one first cylinder is determined by at least one first marking of at least one optical marking. Another advantage of the aspect compared to the rotational angular position with respect to the axis of rotation of the cylinder is that at least one light marking and at least one fiducial mark are well recognizable and distinguishable with the naked eye. The comparison is particularly easy to implement.

  Preferably, the rotational angular position of the at least one first cylinder is adjusted by turning the at least one first cylinder about the rotational axis of the at least one first cylinder, and at least Another advantage of the embodiment in which the pivot angle position of one reference mark coincides with the pivot angle position of at least one optical marking at least within a tolerance range is that this allows prepositioning as accurate as possible. There is something you can do.

  Preferably, at least one first cylinder is initially separated from the first drive, and the at least one first cylinder is connected to the first drive after the correcting step. Another advantage of this is that the at least one first cylinder is already optimally positioned, so that the drive device does not have to perform unnecessary adjusting movements.

  Preferably, subsequently, the board-like or sheet-like material is coated with a coating device, and after adjustment of the actual position of the coating applied to the board-like or sheet-like material and the target position of the applied coating. Another advantage of the embodiment in which the rotation angle position of the at least one first cylinder is adapted by the first drive device is thereby achieved at the rotation angle position at which an optimum connection is desired, In other words, it is not necessary to perform a large adjustment motion by the driving device. Since such positioning is often performed in connection with a cylinder change, only a corresponding sequence of steps of the plurality of steps is required and no additional steps are necessary.

  Preferably, at least one signal, in particular at least one optical marking, is transmitted to at least one first torso area and / or to an area arranged fixedly relative to at least one frame, in particular Projecting, at least one signal, in particular at least one optical marking, in an incident area of the optical marking, in a direction parallel to the axis of rotation of at least one first cylinder, at least one first Another advantage of the embodiment of having a stretch length greater than at least 10% of the stretch length in this direction of the effective surface of the cylinder is that the reference marks arranged at various axial positions can be adapted to the applicator device. It is to be able to capture without.

  Preferably, at least one signal, in particular at least one optical marking, is transmitted to at least one first torso area and / or to an area arranged fixedly relative to at least one frame, in particular Projecting, the at least one light marking is perpendicular to the rotation axis of the at least one first cylinder and / or with respect to the rotation axis of the at least one first cylinder in the incident area of the light marking Another advantage of the embodiment having an extension length smaller than 10 mm in the circumferential direction is that the reading accuracy is increased.

  Preferably, another advantage of the embodiment wherein at least one transmitter is activated before the modification step and deactivated after the modification step is that it saves energy and affects the coating operation. It can be avoided.

  Another advantage of the embodiment in which at least one further rotatable device of the coating device is preferably moved to a reference rotational angular position before at least one first cylinder is connected to at least one drive device. This means that a large number of cylinders and devices are already very precisely coordinated with each other at the time of connection and can be adjusted to each other at best.

  Preferably, subsequently, the board-like or sheet-like material is coated by a coating apparatus, and after adjusting the actual position of the coating applied to the board-like or sheet-like material and the target position of the applied coating, Another advantage of the embodiment in which the first drive device adapts the rotational angle position of at least one first cylinder is that in this way the accuracy of the rotational angle position can be finally optimized. In that case, only a single coating process is required.

  Embodiments of the present invention are illustrated and described in detail below.

1 is a schematic view of an apparatus for applying at least one medium to at least one substrate. FIG. It is the schematic of a 1st cylinder, a transmitter, optical marking, and a reference mark.

  The device 01 for applying at least one medium to at least one substrate is configured as a coating device 01, for example. The coating apparatus 01 is configured as a varnishing apparatus 01 and / or a printing apparatus 01, for example. The coating apparatus 01 comprises at least one first cylinder 02, which is preferably configured as a coating cylinder 02 and is preferably configured to be replaceable. Preferably, the coating device 01 comprises a further cylinder 03, for example a cylinder 03 configured as at least one second impression cylinder 03. The coating cylinder 02 and the impression cylinder 03 are arranged so as to cooperate and form a coating nip 04. Thus, the coating nip 04 is the point at which the substrate to be coated is guided and / or guideable between both cylinders 02; 03 forming the coating nip 04. In particular, in the coating nip 04, the coating agent is transferred to the substrate to be coated. At least one first cylinder 02 is preferably configured as a varnishing cylinder 02 of the varnishing device 01. The at least one first cylinder 02 may be configured as a flexographic printing cylinder 02, for example. In one embodiment, the coating apparatus 01 is configured as an offset printing apparatus 01, and in addition to the transfer cylinder 02, in particular the coating cylinder 02 configured as a rubber blanket cylinder 02, a plate cylinder, in particular a plate-mounted plate cylinder. A third torso configured as: The coating device 01 comprises at least one, preferably fixed frame. At least one second cylinder 02 is disposed so as to be rotatable relative to at least one frame at least about the rotation axis 18.

  The coating apparatus 01 is preferably configured as a board-like material coating apparatus 01. In this case, the board-like material means at least a relatively thick and / or strong material, for example made of metal and / or plastic, and a substrate web made of a relatively flexible material, for example paper or cardboard. Is done. In particular, metal boards are regarded as board-like materials. Such a varnishing cylinder 02 is provided with, for example, at least one recess 09 and / or a projection in the region of its effective surface 19, and the recess 09 and / or the projection extends in a substantially axial direction A. . Such recesses 09 and / or projections are, for example, preferably 5 mm to 600 mm in the circumferential direction and / or 1 mm to 20 mm in the radial direction with respect to the rotation axis 18 of the at least one first barrel 02, preferably The size may be 2 mm to 8 mm. In this case, at least one first cylinder 02 preferably has a diameter of 300 mm to 400 mm. This at least one recess 09 or edge 11 of the protrusion should preferably coincide with the edge of the board-like material to be coated during the coating operation. As a result, it is ensured that the coating agent is not transferred to a surface different from the surface facing the coating cylinder 02, for example, the side surface of the board-like material, or only transferred as intended. In this way, contamination of the board-like material and in particular the coating device 01 is avoided. If this is not the case, the coating agent may come into contact with the conveying device arranged on the downstream side of the coating cylinder 02 to contaminate the conveying device. Therefore, it is necessary to use a coating cylinder 02 having a coating area of various sizes in the circumferential direction for board-shaped materials having various lengths. This is achieved by the different sizes of the coating cylinder 02 and / or the recesses 09 extending to different degrees in the circumferential direction. The recess 09 is usually used when only one surface of the board-like material is desired to be coated. The convex portion is usually used when it is desired to coat the side surface of the board-shaped material.

  The coating cylinder 02 cooperates with the coating preparation device 12 as is known. The preparation device 12 is preferably a varnish device 12 or an inking device 12, for example. In any case, a coating agent source 13, for example an ink reservoir 13 or preferably a varnish reservoir 13, is arranged. The coating agent source 13 is configured as, for example, a chamber doctor 13. The coating agent source 13 is preferably configured as known in the art as coating rollers 16 arranged at least one downstream side via a roller 14 configured as a metering roller 14 as known. It is arranged to be transferred to and / or transferable to the roller 16. Thus, the metering roller 14, preferably configured as an anilox roller 14, for example, is in contact with the coating agent source 13 and at least one form roller 16. At least one dosing roller 16 is preferably in contact with the metering roller 14 and the coating cylinder 02. The present invention is applicable in connection with any type of roller and / or cylinder of the type described.

  The coating device 01 preferably comprises at least one transport device 06. The at least one transport device 06 is preferably arranged on the upstream side of the coating cylinder 02 with respect to the transport path of the board-shaped material. The at least one transport device 06 is configured, for example, as a contact drum 06 and / or a transport belt 06 and / or a magnet shaft 06 and / or a friction shaft 06. When at least one transport device 06 is configured as a contact drum 06, the at least one transport device 06 preferably comprises at least one holding tool 07, for example at least one gripper 07. The holding tool 07 is arranged at a predetermined angular position with respect to the rotation axis 18 of at least one transport device 06. The contact drum 06 is also regarded as a cylinder 06, and its rotational angle position can be adjusted accordingly.

  The at least one first cylinder 02 and preferably the coating cylinder 02 of the coating device 01 are arranged to be driven and / or drivable by at least one first drive device. Preferably, the at least one first drive device is configured as a position-controlled electric motor. The coating apparatus 01 includes at least one second driving device, and the second driving device can be configured as, for example, a position-controlled second electric motor. The at least one transport device 06 is driven and / or driveable by at least one second drive device, in particular rotatable. The rotational angular position of the at least one second drive device is associated with the rotational angular position of the at least one holding tool 07, for example fixedly, via a component that transmits the corresponding torque. In this way, the rotational angular position of at least one second driving device is also associated with the progress step of the board-shaped material conveyance process. Therefore, a predetermined phase position between at least one second drive and the coating cylinder 02 is necessary to ensure the correct application of the coating agent on the board-like material. This also requires a predetermined phase position between at least one first drive and at least one second drive.

  Preferably, the at least one second drive is selectively operable independently or synchronously with respect to the at least one first drive. In this case, the synchronous operation of the at least one first driving device and the at least one second driving device is a transport device 06 driven and / or drivable by the at least one second driving device. It is understood that at least one cylinder 02 driven and / or drivable by at least one first driving device is arranged to rotate at the same peripheral speed. This is not the case for independent operation. The at least one first drive device and the at least one second drive device are preferably connected to a host machine control device. Preferably, the at least one first cylinder 02 is arranged so as to be separable from the at least one first drive device and to be connectable to the at least one first drive device by a clutch.

  In one feasible aspect of the drive assembly, a transmission is arranged, which is coupled to at least one first drive at a first transmission input and second A transmission input is coupled to at least one second drive and a transmission output is coupled to at least one barrel 02; 03. The rotation of at least one transport device 06 is exclusively due to at least one second drive device. The rotation of the at least one second cylinder is due to a torque superposition of at least one first drive device and at least one second drive device, which acts at least temporarily by the transmission. The transmission may be configured as a planetary gear transmission and / or a wave gear device, for example. The relative rotational angular position of the at least one transport device 06 relative to the at least one first cylinder 02 is changed or adjusted by the rotation of the at least one first drive device. When the first transmission device input section is fixedly held, at least one first drum 02 and at least one transport device 06 rotate synchronously.

  In a preferred embodiment of the drive assembly, the at least one cylinder 02; 03 is arranged to be drivable and / or driven mechanically and independently from the at least one second drive device. The at least one transport device 06 is mechanically and individually arranged independently of the at least one first drive device so that it can be driven and / or driven. In particular, a transmission device is arranged which is coupled to at least one first drive device at a first transmission device input and is coupled to at least one second drive device at a second transmission device input. Not. The rotation of at least one first cylinder 02 is brought about exclusively by at least one first drive device or when at least one first cylinder 02 is separated from the first drive device. Brought by the workers. The rotation of the at least one transport device 06 is brought about exclusively by at least one second drive device. The change in the relative rotational angular position of at least one first cylinder 02 and at least one transport device 06 is corresponding to at least one first drive device and at least one second drive device. This is achieved by the ratio of rotational speeds changed to. This ratio can be preset by, for example, a machine control device. Furthermore, while at least one transport device 06 is preferably stopped, more preferably at least one transport device 06 is at a rotational angular position defined as a reference angular position for the at least one transport device 06. While stopping, at least one first cylinder 02 is temporarily separated from at least one first drive by a clutch, and at least one first cylinder 02 is manually rotated. It is also possible to swivel about the axis 18.

  The coating apparatus 01 includes at least one rotation angle control device. The at least one rotation angle control device comprises at least one transmitter 08, which is preferably configured as at least one light source 08. The at least one rotation angle control device is arranged at a reference rotation angle position relative to at least one first body 02 and at a reference position relative to at least one frame at the same time. And / or can be arranged. At least one transmitter 08, in particular at least one light source 08, can rotate and / or rotate at least one of the at least one first cylinder 02 with a signal, in particular an optical signal, in particular an optical marking 21. The component is configured to transmit and / or transmit to an outer surface extending in parallel to the rotational axis 18, in particular of the effective surface 19 of the at least one first barrel 02. The at least one light source 08 is preferably configured as a laser source 08, for example a line laser source 08 or a rotating laser source 08. In another aspect, the at least one light source 08 is configured as an incandescent bulb 08 or a light emitting diode (LED) 08 comprising an optical lens. Such a light source 08, in particular a laser source 08, is preferably arranged so that shielding and / or eye disturbances by workers are eliminated. The at least one light source 08 is arranged on at least one frame of the coating device 01, preferably in a fixed frame manner. Preferably, the light source 08 is disposed on the side of the board-shaped material conveyance path that is different from the at least one first cylinder 02. In this way, a particularly long projection path is obtained along a free space area freed from the coating apparatus with respect to the transport path. In this way, the light source 08 can be placed particularly away from possible danger points, without unnecessarily limiting the remaining geometry of the coating device 01.

  In one aspect, at least one transmitter 08, in particular at least one light source 08, is configured to be movable relative to at least one frame and to be arranged at various predetermined reference positions relative to the frame. Has been. This can be ensured, for example, by arranging at least one light source 08 along the rail in the axial direction A with respect to the rotational axis 18 of at least one first cylinder 02. In this way, optical markings 21 of various axial lengths can be marked on the first cylinder 02, and this marking 21 is also at least one first cylinder 02 in the axial direction A. Marking is possible even when the length is shorter than the maximum possible axial length.

  The stretch length of the optical marking 21 is related to the stretch length of the projection on the screen, preferably in this case, preferably with respect to the axis of rotation 18 of the effective surface of the at least one first cylinder 02. Parallel outer surfaces are used as screens. At least one optical marking 21 and / or preferably a whole of a plurality of optical markings 21 arranged in a common line, in particular a straight line, is circumferential in relation to at least one cylinder 02; 03, preferably from 10 mm Has a stretch length of more preferably less than 5 mm, more particularly preferably less than 2 mm. In other words, this means that the rotation angle control device is configured to project and / or project at least one light marking 21 onto at least one region of at least one first cylinder 02 of the coating device 01. And at least one optical marking 21 is preferably circumferentially with respect to at least one first cylinder 02 shorter than 10 mm, more preferably shorter than 5 mm, This means that the stretch length is particularly preferably shorter than 2 mm. The whole of the at least one optical marking 21 and / or the plurality of optical markings 21 is preferably at least as large as the extension length in the circumferential direction of the cylinder 02 in the axial direction A with respect to the at least one first cylinder 02. And has a stretched length.

  Preferably, the total stretch length of the at least one light marking 21 and / or the plurality of light markings 21 in the axial direction A is at least 10 mm, more preferably at least 100 mm, more particularly preferably at least 500 mm. That's it. Preferably, the at least one optical marking 21 and / or the entirety of the plurality of optical markings 21 is in the axial direction A, and is 10 times the length of the effective surface 19 of the at least one first cylinder 02 in this axial direction A. %, More preferably greater than 30%, even more preferably greater than 80%. In a preferred embodiment, the at least one light marking 21 more preferably has a linear shape extending in the axial direction A relative to the rotational axis 18 of the at least one first cylinder 02. In one embodiment, the entirety of the plurality of optical markings 21 is disposed at various axial positions with respect to the rotational axis 18 of at least one first cylinder 02, and more preferably at least one. It consists of at least two optical markings 21 arranged on one straight line extending in the axial direction A with respect to the rotational axis 18 of the first cylinder 02 of the first cylinder 02.

  Preferably, the at least one light marking 21 is at least partly a straight line connecting the point of the rotation axis 18 of the at least one first cylinder 02 and the point emitting the light of the at least one light source 08. Located on the connecting line. In this case, the point that emits light from at least one light source 08 is understood as a point where light is emitted from at least one light source 08. This point does not have to be the same as the location where light is generated. An optional mirror and / or lens that redirects light on the light path towards at least one first cylinder 02 is a component of at least one light source 08.

  Hereinafter, for example, at the time of cylinder replacement, after assembling at least one first cylinder 02, how to use the coating apparatus 01 and the rotation angle control apparatus, at least one first cylinder 02 is described. A description will be given of whether or not the position is accurately aligned. Such a cylinder change is useful, for example, for arranging a cylinder 02 having a different perimeter and / or a cylinder 02 having a differently arranged and / or extending recess 09 and / or a recess.

  First, at least one transmitter 08 emits at least one signal representing a target value of the rotational angular position of at least one first cylinder 02 from the frame, and / or at least one transmitter 08 At least one signal representing the current actual value of the rotational angle position of at least one first cylinder 02 is transmitted from at least one first cylinder 02. Then, the current target value and the actual value of the rotational angular position of at least one first cylinder 02 are compared with each other, with subsequent correction steps of at least one first cylinder 02 being performed. The rotational angular position is adjusted by turning of at least one first cylinder 02 about the rotation axis 18 of at least one first cylinder 02, and then of at least one first cylinder 02. The actual value and the target value of the rotation angle position coincide with each other within a predetermined tolerance range. In this case, at least one first cylinder 02 is connected after the correction step at the latest. The rotational angle position of the driven device is stored in the storage device of the machine control device. In this case, the tolerance range is preferably less than 10 °, more preferably less than 5 °, and even more preferably less than 2 °.

  In an optional step, at least one first cylinder 02, preferably configured as a coating cylinder 02, is pre-mounted on the coating apparatus 01 and / or transferred to the production position inside the coating apparatus 01. In another, preferably subsequent step, at least one light source 08 is activated. The at least one light source 08 forms at least one optical marking 21 in a predetermined area on at least one first cylinder 02. The at least one reference mark 23 has a rotational angle position that is accurately defined with respect to the circumferential direction of the at least one first cylinder 02 with respect to the at least one first cylinder 02. The rotation angle position of at least one reference mark 23 of at least one first cylinder 02 relative to at least one frame is compared with the rotation angle position of at least one optical marking 21. This comparison can be made by observation by at least one sensor and / or operator. Then, at least one first cylinder 02 is brought to a predetermined rotational angular position by turning about the rotation axis 18 of the at least one first cylinder 02 in some cases. In this angular position, the reference mark 23 is arranged at a predetermined rotational angular position with respect to the rotational axis 18 of at least one first cylinder 02 with respect to the preferably fixed frame of the coating device 01. Such fiducial mark 23 may be a marking arranged for this purpose. Preferably, however, the concave or convex edge 11 displaced from the ideal virtual outer peripheral surface of at least one first cylinder 02 on the surface of the cylinder 02 is used as the reference mark 23. . However, the reference mark 23 may alternatively or additionally be different from the surroundings not only in its shape but exclusively in its color and / or reflection performance, or in addition to its shape and additionally in color and / or reflection performance. It may be. In particular, such a fiducial mark 23 may be a different color and / or a different surface roughness and / or a different material spot than the area surrounding the fiducial mark spot.

  A predetermined rotational angular position of at least one first barrel 02 is detected by observation with a detector and / or preferably by an operator. At this angular position, at least one optical marking 21, i.e. the illuminated area, and the reference mark 23 are at least within a tolerance range and preferably perfectly coincide. This rotational angular position is recorded automatically by the machine control device and / or by the input of a corresponding signal by the operator, i.e. stored in the storage device of the machine control device. At least one first cylinder 02 is connected to at least one first driving device by the clutch. In this way, the machine control device can bring at least one first cylinder 02 to any arbitrary rotational angular position by the position-controlled first drive device. The rotation angle position of the at least one transport device 06 and / or the rotation angle position of the drive device guide axis of the coating device 01 is set to a preset value by an operator and / or a machine control device in advance or subsequently. Adjusted. Such a drive device guide axis may in particular be an electronic or virtual drive device guide axis. This preset value is preferably known in the machine control device. In this case, the at least one second driving device and / or the at least one first driving device, for example, causes at least one first cylinder 02 and / or at least one transport device 06 to perform a desired rotation, respectively. Transition to angular position. In such a positional relationship, the at least one first cylinder 02 is positioned with respect to the at least one transport device 06, and at this time, the angular range of the cylinder 02 for transferring the coating medium is such that the coating nip Is located within a tolerance range with respect to the board-like material conveyed through 04, particularly preferably the recesses 09 and / or the edges 11 of the projections of the effective surface 19 of the at least one first cylinder 02. However, when the effective surface 19 rolls on the board-shaped material, it accurately matches the edge of the board-shaped material.

  For fine adjustment of the pivot angle position, the coating process is performed on the board-like material, the actual position of the applied coating on the board-like material is compared with the target position, and an adjustment drive, for example at least one first This is implemented by correcting and / or fine-tuning the rotational angle position of at least one first cylinder 02 by the driving device. According to such fine adjustment, the accuracy of matching the actual position and the target position of the applied coating of 0.3 mm to 0.4 mm is preferably good only after coating of one board-like material Achievable.

  In another aspect, the at least one light marking 21 is emitted from a light source 08 that is disposed on the at least one first barrel 02 in a relatively non-rotatable manner (ie, so as to rotate together). The reference mark 23 is arranged in a fixed position with respect to at least one frame. This alternative method proceeds in the same way, in particular the comparison and positioning of at least one optical marking 21 and at least one reference mark 23 proceed in the same way. Therefore, in this aspect, the device 01 is characterized in that at least one transmitter 08 is arranged on at least one first body 02 and at least one reference mark 23 is arranged on at least one frame. Yes.

  In each described aspect, the at least one fiducial mark 23 may be configured as a detector connected to the machine controller. Thus, in particular, the at least one detector may be arranged in at least one first cylinder 02 or the at least one detector may be arranged in at least one frame. In this case, preferably a signal transmitter, such as an optical display device or an acoustic signal transmitter, is arranged which cooperates with such a detector and is more preferably selectively operable. . This signal transmitter transmits a corresponding signal when the current actual value of the rotational angle position of at least one first cylinder 02 matches the target value.

  The at least one transmitter 08 preferably emits electromagnetic radiation, more preferably electromagnetic radiation having a wavelength in the visible light range, preferably in the wavelength range from 400 nm to 800 nm. In one aspect, at least one transmitter 08 is an ultrasonic transmitter. In this case, corresponding ultrasonic sensors are also arranged in the same manner.

  It is pointed out that the mentioned cylinders 02; 03; 06 each comprise one effective surface 19 and at least one journal 22. The support of the cylinders 02; 03; 06 is usually provided via at least one journal 22. When a structure detachably coupled to each cylinder 02; 03; 06, for example, a printing plate is disposed on the effective surface 19, this structure is regarded as a component of the effective surface 19 in the present invention.

01 apparatus, coating apparatus, coating apparatus, varnishing apparatus, printing apparatus, offset printing apparatus 02 first cylinder, coating cylinder, varnishing cylinder, flexographic printing cylinder, transfer cylinder, rubber blanket cylinder 03 second cylinder, impression cylinder 04 Coating nip 06 Conveying device, contact drum, conveying belt, magnet shaft, friction shaft, cylinder 07 holding tool, gripper 08 light source, laser source, line laser source, rotating laser source, incandescent bulb, light emitting diode (LED)
09 recess (01)
11 Edge (09)
12 Preparation Device, Varnish Device, Ink Device 13 Coating Agent Source, Varnish Storage, Ink Storage, Chamber Doctor (12)
14 Rollers, metering rollers, anilox rollers (12)
16 rollers, wearing rollers (12)
18 Rotation axis (02)
19 Effective surface (02)
21 Optical marking 22 Journal (02)
23 Reference mark A direction

A printing press is known from German Offenlegungsschrift DE 102007017941. This printing machine includes at least one rotatable cylinder and a frame. The at least one cylinder is disposed so as to be rotatable relative to the frame about the rotation axis. The printing press includes at least one rotation angle control device, the rotation angle control device being at a reference rotation angle position relative to at least one cylinder and simultaneously relative to the frame. It is arranged at the reference position. In this case, the rotation angle control device is arranged in cooperation with at least one reference mark, and is configured to be able to inspect the rotation angle position of at least one cylinder.
A printing machine is known from EP 1205300. This printing machine includes a rotation angle control device. The rotation angle control device is disposed at a reference rotation angle position relative to the body and at the same time relative to the frame. The stroboscope is controlled by the LED and the reflector strip arranged on the cylinder, and the reference mark arranged at a fixed angle of another cylinder is recorded with the light of the stroboscope.
A printing press is known from EP-A-1295721. The printing machine includes a rotatable cylinder and a frame. The barrel is disposed so as to be rotatable relative to the frame about the rotation axis. The printing press includes a rotation angle control device, which can be arranged at a reference rotation angle position relative to the cylinder and at the same time relative to at least one frame. The rotation angle control device is arranged so as to cooperate with at least one reference mark, and is configured to be capable of non-contact inspection of the rotation angle position of the cylinder. The rotation angle control device comprises a transmitter configured as a light source, the transmitter being directed to an outer surface of the effective surface of the cylinder extending parallel to the axis of rotation of the cylinder with respect to at least one transmission direction. The optical marking is projected onto the area of the effective surface of the cylinder of the apparatus by the light source.
In European Patent Application No. 1129847 and German Patent Application No. 19716943, the main cylinder drive of a flexographic printing machine is known, respectively. In order to grasp the rotational angle position of the cylinder, the optical sensor grasps the marking attached to the circumferential region of the cylinder.

The present invention provides an apparatus for applying at least one medium to at least one substrate according to the superordinate concept part of claim 1, and at least a first cylinder of an application apparatus according to the characterizing part of claim 17 . The present invention relates to a method for determining a revolving angle position in a reproducible manner.

This problem is solved by the structure described in the characterizing part of claim 1 and the structure described in the characterizing part of claim 17 .

Another advantage is that visible markings can be projected with the naked eye in a correspondingly selected wavelength range of light.

Another advantage is that the optical markings can be compared with fiducial marks placed on the effective surface of the cylinder with the naked eye without any further aid, especially since this area is easier to see than for example the area of the journal of the cylinder. . Thus, the comparison between the target position and the actual position can be performed particularly easily.

Preferably, at least one transmitter, preferably configured as a light source, transmits at least one signal, preferably configured as at least one optical marking, from a frame to a predetermined of at least one first cylinder. Projecting onto the outer surface of the active surface, preferably the outer surface of the effective surface, more preferably the outer surface of the effective surface extending parallel to the rotational axis of the at least one first cylinder and / or at least one first surface. 1 of the body, is another advantage you projected in a region which is arranged at a position fixed relative to the at least one frame, the signal is good measurable, preferably impact on at least one first cylinder of the There is not. In particular, signals configured as optical markings are well visible. The signal can also be transmitted from the frame, reflected by a corresponding area of the cylinder, and compared with a reference mark placed on the frame. In this case, a mirror is preferably arranged on at least one first cylinder.

Preferably, the actual value of the rotational angle position of the at least one first cylinder and the target value are compared with each other, wherein at least one first cylinder of the at least one first cylinder is compared. The rotational angular position of at least one fiducial mark coupled to the one cylinder in a non-rotatable manner relative to the axis of rotation of at least one first cylinder is determined by at least one first marking of at least one optical marking. the another advantage that comparing the rotational angular position with respect to the rotation axis of the cylinder, at least one optical marking and at least one reference mark is well recognizable, since it is distinguishable to the naked eye, such comparison Is particularly easy to implement.

The rotational angle position of the first cylinder in one even without low, adjusted by turning of the at least one first cylinder and about at least one first cylinder of a rotary axis of at least one Another advantage of the embodiment in which the rotational angle position of the reference mark coincides with the rotational angle position of the at least one optical marking at least within a tolerance range is that this allows prepositioning as accurate as possible. is there.

Claims (25)

An apparatus (01) for applying at least one medium to at least one substrate,
The coating device (01) includes at least one rotatable first cylinder (02) and at least one frame, and the at least one first cylinder (02) has an axis of rotation (18). The coating device (01) is provided with at least one rotation angle control device, and the rotation angle control device is arranged so as to be rotatable relative to the at least one frame. At least partially disposed at at least one reference pivot angle position relative to the at least one first body (02) and at the same time relative to the at least one frame. The pivot angle control device is arranged in cooperation with and / or collaboratively with at least one fiducial mark (23), One the inspection of non-contact rotation angle position of at least one first cylinder (02) is configured to, in the coating apparatus,
The rotation angle control device includes at least one transmitter (08), and the transmitter (08) has an effective surface of the at least one first body (02) with respect to at least one transmission direction ( 19), characterized in that it is positioned and arranged toward an outer surface extending in parallel to the rotational axis (18) of the at least one first body (02). An apparatus for applying at least one medium to a single substrate.   The at least one transmitter (08) causes at least one signal to be transmitted to at least one region of the effective surface (19) of the at least one first cylinder (02) of the coating device (01). 2. The device of claim 1, wherein the device is capable of being transmitted and / or outgoing.   Device according to claim 1 or 2, wherein the at least one first body (02) comprises the at least one fiducial mark (23).   The device according to claim 1, wherein the at least one transmitter (08) is configured as at least one light source (08).   The apparatus according to claim 4, wherein the at least one light source (08) is configured as at least one laser source (08).   By means of the at least one light source (08), at least one light marking (21) is applied to at least one of the effective surfaces (19) of the at least one first cylinder (02) of the application device (01). 6. An apparatus according to claim 4 or 5, wherein the apparatus is projected and / or projectable onto a region.   The at least one light marking (21) at least partially emits light from the at least one light source (08) and the rotational axis (18) of the at least one first body (02). The device according to claim 6, which is located on a straight connection line connecting the point ().   The at least one optical marking (21) and / or a plurality of the at least one optical markings (21) in its entirety in the axial direction with respect to the rotational axis (18) of the at least one first cylinder (02) ( A) the axial direction (A) defined by the outermost two boundary portions of the at least one light marking (21) and / or the plurality of the at least one light markings (21) in A). 8. The device according to claim 6, wherein the device has an extension length greater than 10% of the length of the effective surface (19) of the at least one first body (02).   The at least one optical marking (21) has an extension length less than 10 mm in the circumferential direction with respect to the axis of rotation (18) of the at least one first barrel (02). The device according to any one of the above.   The device according to any one of the preceding claims, wherein the at least one transmitter (08) is arranged in the at least one frame.   11. The at least one transmitter (08) is selectively configured to be switchable between at least one activated operating state and a deactivated operating state. The device according to any one of the above.   The at least one first cylinder (02) transfers the at least one medium through the surface of the effective surface (19) of the at least one first cylinder (02); 12. The device according to claim 1, wherein the device is configured to be transferable.   The device according to any one of claims 1 to 12, wherein the coating device (01) is a varnishing device (01) for a board-shaped material.   Said at least one first cylinder (02) is a coating cylinder (02) which forms and / or can form a coating nip (04) with a cylinder (03) configured as an impression cylinder (03). 14. A device according to any one of claims 1 to 13. Rotation angle of at least one first cylinder (02) of the application device (01) relative to at least one frame of the device (01) for applying at least one medium to at least one substrate A method for reproducibly determining the position,
In a first step, at least one transmitter (08) emits at least one signal from the at least one frame, which is the rotational angle of the at least one first body (02). A position target value or at least one transmitter (08) emits at least one signal from the at least one first cylinder (02), the signal being It represents the actual value of the rotational angle position of one first body (02),
Next, the actual value of the angular position of the at least one first body (02) and the target value are compared with each other,
In a subsequent correction step, the rotation angle position of the at least one first cylinder (02) is set to the at least one around the rotation axis (18) of the at least one first cylinder (02). The actual value and the target value of the rotation angle position of the at least one first cylinder (02) are adjusted within a predetermined tolerance range by adjusting by turning the first cylinder (02). To match within,
After the correction step, the rotational angle position of the first drive device coupled to the at least one first cylinder (02) at a later time is stored in the storage device of the machine control device;
A method for reproducibly determining a rotational angle position of at least one first cylinder of a coating apparatus.   The at least one transmitter (08) transmits the at least one signal from the at least one frame to a predetermined region of the at least one first body (02) or the at least one signal. 16. A method according to claim 15, characterized in that the first body (02) transmits to a predetermined area arranged in a fixed position relative to the at least one frame.   The actual value of the rotational angle position of the at least one first cylinder (02) and a target value are compared with each other, and at this time, the at least one first cylinder (02) The rotation axis (18) of the at least one first cylinder (02) of at least one reference mark (23) coupled in a non-rotatable manner with at least one first cylinder (02). The method according to claim 16, wherein the rotational angular position is compared with the rotational angular position of the at least one signal with respect to the axis of rotation (18) of the at least one first body (02).   The at least one transmitter (08) configured as a light source (08) transmits at least one signal configured as at least one optical marking (21) from the at least one frame to the at least one second signal. Projecting to a predetermined area of one cylinder (02) and / or projecting from the at least one first cylinder (02) to a predetermined area arranged in a fixed position with respect to the at least one frame The method according to claim 15.   The actual value of the rotational angle position of the at least one first cylinder (02) and a target value are compared with each other, and at this time, the at least one first cylinder (02) The rotation axis (18) of the at least one first cylinder (02) of at least one reference mark (23) coupled in a non-rotatable manner with at least one first cylinder (02). 19. The rotation angle position is compared with the rotation angle position of the at least one light marking (21) with respect to the rotation axis (18) of the at least one first body (02). Method.   The rotation angle position of the at least one first cylinder (02) is set to the at least one first cylinder about the rotation axis (18) of the at least one first cylinder (02). By adjusting by turning of (02), the rotation angle position of the at least one reference mark (23) matches the rotation angle position of the at least one optical marking (21) at least within the tolerance range. 20. The method of claim 19, wherein   The at least one first cylinder (02) is initially separated from the first driving device, and the at least one first cylinder (02) is moved to the first cylinder after the correcting step. 21. A method according to any one of claims 15 to 20, wherein the method is coupled to one drive.   Subsequently, the board-like or sheet-like material is coated by the coating device (01), and the actual position of the coating applied to the board-like or sheet-like material and the target position of the coating to be applied are adjusted. 22. A method according to any one of claims 15 to 21, wherein the adjustment of the rotational angular position of the at least one first cylinder (02) is performed later by the first drive device.   The at least one optical marking (21) is projected onto the region of the at least one first cylinder (02), and the at least one optical marking (21) is incident on the optical marking (21). In the region, in the direction (A) parallel to the axis of rotation (18) of the at least one first cylinder (02), the at least one first cylinder in the direction (A) ( 23. A method as claimed in any one of claims 18 to 22, wherein the stretch length is greater than at least 10% of the stretch length of the effective surface (19) of 02).   The at least one optical marking (21) is projected onto the region of the at least one first barrel (02), and the at least one optical marking (21) is incident on the optical marking (21). In the region perpendicular to the axis of rotation (18) of the at least one first cylinder (02) and / or the axis of rotation (18) of the at least one first cylinder (02) 24. A method as claimed in any one of claims 18 to 23, having a stretch length of less than 10 mm in the circumferential direction with respect to.   25. A method according to any one of claims 15 to 24, wherein the at least one transmitter (08) is activated prior to a modification step and deactivated after the modification step.

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