EP3659950A1 - Substrate processing device with an assembly and method for operating a substrate processing device - Google Patents

Abstract

The invention relates to a substrate processing machine for printing and / or painting a tabular substrate (7) with a system (1), the system (1) having a transport system (2) for transporting the tabular substrate (7) in a transport direction (T) Side guide devices (11, 25) are provided on both sides, with which the sheet-like substrate (7) can be guided and / or aligned on the side faces thereof, and the side guide devices (11, 25) can be moved transversely to the transport direction (T). A separate drive (12, 13) is assigned to each lateral guide device (11, 25). The invention also relates to a method for operating a substrate processing machine for printing and / or painting tabular substrate (7) with a system (1).

Description

The invention relates to a substrate processing machine for printing and / or painting tabular substrate with a system and a method for operating a substrate processing machine for printing and / or painting tabular substrate with a system.

From the DE 100 23 940 A1 A method and a device for aligning sheet material during transport is known, wherein separate, independently drivable segment rollers act on the material during the conveyance of the sheet material. However, the surface of the material must be contacted.

From the DE 102 20 563 A1 A sheet guiding device for a sheet processing machine and a method for guiding a sheet are known, wherein scrolling panels are curved after the lateral alignment on a side mark on the opposite side in such a way that a distance between the side scroll cutouts and the side mark is created.

From the DE 10 2005 037 128 A1 a transport system of a sheet metal printing or coating machine is known in which flat belts are used to transport the metal sheets.

From the DE 10 2008 017 090 A1 A device and a method for feeding flat, scaly overlapping objects, in particular metal sheets, is known, wherein a pulling device is provided which transversely extends the sheets Direction of conveyance is shifted to a laterally arranged sensor device and, after reaching the sensor, is braked in a way-controlled manner.

From the DE 10 2012 211 783 A1 A conveying device and a method for conveying printing material sheets are known, the printing material leading edges being aligned with stop surfaces of a cylinder.

From the DE 10 2008 034 917 A1 A device and a method for front edge and side edge alignment of a tabular material are known, wherein a side mark can be designed as a side double mark with two side stop rollers mounted so as to oscillate about a common pendulum axis.

The DE 44 45 638 A1 shows a feed device for sheet metal printing machines and sheet metal painting machines, wherein aligning members act on the side surfaces of the sheet metal plates via power drives.

The DE 29 29 583 A1 shows a combined draw and slide mark.

The WO 2012/076671 A1 shows a method and an apparatus for aligning a sheet in front of a sheet processing machine, wherein two clamping devices for clamping a sheet are provided on each long side, which can be moved independently of one another in the transport direction and transversely to the transport direction by means of a drive as pulling devices.

The EP 1 840 062 B1 shows a sheet folding device with drives controlled by a control unit for aligning the sheets at right angles to the transport direction.

The DE 35 38 323 C2 shows a device for the lateral alignment of flat objects lying on a support.

The DE 944 925 B shows a device for aligning metal sheets on painting machines, the stops consist of a block provided with a groove and a spring-loaded grooved roller.

The invention has for its object to provide an alternative substrate processing machine for printing and / or painting tabular substrate with a system or an alternative method for operating a substrate processing machine for printing and / or painting tabular substrate. In particular, an improved side register should be achieved and / or a reduced set-up time should be achieved.

According to the invention, the object is achieved by a device with the features of the independent device claim and a method with the features of the independent method claim. Advantageous configurations result from the subclaims, the description and the drawings.

The invention has the advantage that an alternative substrate processing machine for printing and / or painting tabular substrate with a system or an alternative method for operating a substrate processing machine for printing and / or painting tabular substrate is created. In particular, an improved side register is achieved or a reduced set-up time is achieved. A corresponding substrate processing machine prints and / or varnishes tabular substrate, in particular metal sheets or scroll sheets.

In particular, in the case of a machine processing tabular substrates, for example a machine which processes optional panels or scroll panels, the panels or scroll panels are preferably aligned, for example, on a feed frame while running at production speed and a processing gap, for example a pressure nip. The plates or scroll plates are brought into position in particular by an oscillating side mark and an oscillating side shift. An alignment of a substrate abutting front edge stops is preferably carried out by moving the side mark and the side shift towards one another, the side shift in particular being designed to be resilient and the alignment thus taking place at the side mark.

A movement of the side shift and / or side mark preferably takes place via a single drive, for example an electronically controlled electric or servo motor. This single drive, for example a servo motor, can in particular perform both a page format adjustment and an oscillating movement transverse to the transport direction. A movement transverse to the transport direction, in particular an oscillation stroke, can be set and / or carried out independently of one another by individual drives. For example, a stroke on the brand side can be set to 2 mm (millimeters) instead of the usual 6 mm. Correspondingly, the stroke on the thrust side can also be set, for example in addition to a preselectable deflection path, to another or the same path, for example 4 mm or 2 mm.

The side thrust and side mark, which are driven in an oscillating manner, in particular by the individual drives, preferably align the substrates or sheets, which are, for example, preceded by leading edge stops at the production speed, precisely aligned laterally during machine operation. For this purpose, the side alignment systems or side guide devices move together on both sides. The side edge of the board is aligned with the side mark, the side shift deflects to compensate for possible tolerances. The side mark in the innermost position preferably has the position corresponding to the nominal width of the current half of the table. A spring deflection X is preferably assigned to the sideshift, which can be set, for example, at the control center of the machine. The spring travel X can for example between 1 mm and 4 mm. The sideshift in the innermost position thus preferably has the position corresponding to the nominal width of the current half of the sheet minus the set deflection path X. This means that the sideshift in the innermost position is X in the format of the substrate or sheet. If, for example, a board is now placed in a feed frame and the sideshift is tipped to the innermost position, then the sideshift deflects by path X.

The side alignment systems or side guide devices are advantageously driven simultaneously or synchronously by the individual drives. Compared to side drawers and side markers, each driven by a mechanical cam, the movement transverse to the transport direction can be set independently and thus carried out. The oscillating strokes in particular can thus be designed variably. This makes it easy to reduce the stroke on the brand side from 6 mm to 2 mm. The stroke on the thrust side can be reduced in a correspondingly simple manner from the usual 6 mm to the sum of spring deflection X plus preferably adjustable 2 mm. This makes it particularly easy to set the respective strokes and / or simply exchange the brand and push side.

The individually achievable minimum necessary strokes also minimize the impact speed of the side alignment systems or side guide devices on the side edge. As a result, the reduced strokes also significantly reduce the impact speeds. This means that there is less unrest on the side edges, which leads to a better register. The reduced strokes on the brand side and operating side result in lower impact speeds, in particular on both sides. At the same time, it is advantageous that only lower side thrust forces are required. In the case of boards, for example, this means that they bulge less. Due to reduced unrest in the system, higher speeds can also be achieved and / or better side registers can be achieved. Set-up times can also be reduced. For example, only one entry is in the Control center necessary for a change of brand side, whereby manual set-up work on the machine is reduced.

Depending on the type of substrate to be processed or the type of sheet, appropriate lateral guiding devices are used in the system of the machine. A single roller device, for example an alignment roller, can be used for normal sheets, in particular normal sheet metal. Scroll rails, which in particular have a plurality of rollers arranged one behind the other, are used for scroll panels, in particular scroll sheet metal. However, the use of a scroll rail makes sense both for scroll boards and for thin boards from, for example, approximately 0.18 mm. With thin sheets in particular, the probability is high when using a single roll that the sheet bulges in the middle. The cause is the lateral force that is introduced at certain points. The scroll rail is better here, in which the lateral thrust is introduced over a greater extent and in which the board has less tendency to bulge, which would result in poor side registration. When using a scroll table, the individual roller devices in the system are preferably replaced by scroll rails, in particular on both sides.

The alignment of the sheets or scroll sheets in the system of the machine on the single roller devices or on the scroll rails used is preferably carried out at full production speed by the in particular oscillating movement of the side thrust and side mark, which either by the two single roller devices or the two scroll rails be embodied. Each panel or scroll panel is preferably laterally aligned by a simultaneous movement of the individual roller devices or the scroll rails toward one another, in particular on the specified brand side. The opposite thrust side is compressed accordingly to avoid damage or to compensate for tolerances. For example, a base body that receives the single roller device or scroll rail on the push side can have a corresponding spring.

For at least one and preferably both side guiding devices, sensors can be provided, for example, which measure the position of a respective side edge. However, measurements and evaluations are only made on the brand side. For example, the brand side can be set on a control station of the machine, in particular the operator side or the drive side of the machine can be selected as the brand side. For example, a sensor, in particular an analog measuring sensor, can be provided, which is fixedly or displaceably attached to the respective side guide device and can measure the position of the side edge. In particular, the use of at least one preferably optical sensor of a side guiding device, in particular a scroll rail, takes place at least on the brand side, the sensor being arranged so as to be displaceable in particular in and against the transport direction and thus being able to be adjusted to a scroll ear of a scroll table. The or several sensors of a scroll rail preferably make the pivoting movement of the individual ball bearings.

A measurement is carried out particularly preferably in the case of panels or scroll panels aligned on the front edge, in particular in the case of a gripper closure, preferably by means of a gripper system, for example a cylinder. For example, one or one of several sensors of an inserted scroll rail can be designed to be displaceable in order to carry out a measurement on a scroll tube, i. H. guarantee outside of scroll sections of a scroll table. Furthermore, an evaluation device connected to the respective sensor of the side guiding device used on the brand side can assess whether the board or scroll board has been correctly applied. An incorrectly aligned board or scroll board can be reliably detected in the running process.

Fig. 1:

Anlage einer tafelförmiges Substrat verarbeitenden Maschine;

Fig. 2:

Zu verarbeitende Scroll-Tafel;

Fig. 3:

Draufsicht auf eine Anlage einer tafelförmiges Substrat verarbeitenden Maschine;

Fig. 4:

Seitenführungseinrichtung als Scroll-Schiene;

Fig. 5:

Seitenführungseinrichtung als Scroll-Schiene mit stationärem und verschiebbarem Sensor;

Fig. 6:

Seitenführungseinrichtung als Scroll-Schiene mit stationären Sensoren;

Fig. 7:

Seitenführungseinrichtung als Einzelrolleinrichtung;

Fig. 8:

Seitenführungseinrichtung als Einzelrolleinrichtung mit Sensor.

The invention is to be explained by way of example below. The associated drawings represent schematically:

Fig. 1:

Plant of a tabular substrate processing machine;

Fig. 2:

Scroll table to be processed;

Fig. 3:

Top view of a plant of a tabular substrate processing machine;

Fig. 4:

Lateral guide device as a scroll rail;

Fig. 5:

Lateral guide device as a scroll rail with a stationary and movable sensor;

Fig. 6:

Lateral guide device as a scroll rail with stationary sensors;

Fig. 7:

Lateral guide device as a single roll device;

Fig. 8:

Lateral guide device as a single roller device with sensor.

The Fig. 1 shows a system 1 of a sheet-like substrate or material processing machine, in particular a printing and / or painting machine. In the machine, for example, sheets 7, in particular sheets 7, are transported by one or more conveying devices 2 along a conveying path in a transport direction T, on which they are processed by at least one processing unit or processing unit on at least one of their sides, e.g. B. printed and / or painted. The substrate, in particular the sheets 7, is preferably transported in a non-flaky manner, that is to say individually or with substrates spaced apart from one another, in particular sheets 7 , preferably front edge stops, for register-oriented alignment of the plates 7 conveyed up on the conveyor line, in particular by a conveyor device 2 arranged upstream of the system 1 from a pressure cylinder 3.

By cooperation of the conveyor device 2 which conveys the panels 7 Front edge alignment means, preferably stops, of a cylinder, in particular with contact marks 6 of a printing cylinder 3, the plates 7 can be applied in register and correctly aligned in the case of an inclined position. For this purpose, the conveying device 2 directly upstream of the cylinder, in particular the printing cylinder 3, is preferably operated at least at times at a higher feed or conveying speed than the peripheral speed of the cylinder, in particular printing cylinder 3. Due to this at least temporarily higher feed speed, a leading edge of the panels 7 is pressed against at least one stop surface of the front edge stops, in particular against the contact marks 6.

The conveying device 2 comprises at least one means conveying the plates 7, for example circulating means or a revolving conveying means transporting the plates 7. For example, it includes a belt system with one or more z. B. designed as circulating belts circulating means, on which or which the plates 7 in the transport direction T by positive locking with a belt or a different, also rotating traction means arranged and attacking the trailing end of the plate 7 attack, z. B. rear thrust 8, or by friction (friction) with the belt system by only its own weight or supported by friction-increasing measures, eg. B. by a support force and thus the friction increasing means, in particular by negative pressure or a magnetic force, for example a magnet, in particular electromagnet, are promoted. The effect of the agent is preferably variable and / or can be optionally activated and deactivated.

The conveyor device 2 arranged upstream of the cylinder, in particular the pressure cylinder 3, can preferably be designed as at least one revolving belt with a belt system 8 with a back thrust. Suction devices and / or guide surfaces can also be provided. In order to deform the plates 7 due to the differing speeds after the first contact on the abutment surfaces avoid, the conveyor 2 can have means which limit the forces acting on the table 7 for the feed. These means limiting the feed force can basically be implemented in different ways depending on the form of the conveying means. In particular, the rear thrust 8 can be sprung.

The plate 7, which is fed by the conveying device 2 to the cylinder, in particular the pressure cylinder 3, and is aligned with leading edge stops, in particular the contact marks 6, is gripped in particular by a gripper system 9 and moved further in the transport direction T. The table 7 passes through the machine, in particular from the system 1 to a delivery in a particular straight transport direction T. In the delivery, the table 7 can be placed on a stack, for example. The panel 7 is in the machine a processing unit, for. B. at least one printing unit and / or at least one coating unit, in which the board 7 is printed or painted on at least one side. The processing unit or processing unit can be, for example, a printing unit which, in addition to the printing cylinder 3, can have a blanket cylinder 4 and a plate cylinder 5. In particular, the plate cylinder 5 can be assigned an inking unit or inking and dampening unit, which colors a printing plate clamped on the plate cylinder 5 in accordance with the printing ink used. When the plate cylinder 5 rolls on the rubber cylinder 4, the printing ink is transferred to the rubber cylinder 4, which is covered in particular with a rubber blanket. A printing gap is formed between the blanket cylinder 4 and the impression cylinder 3, through which the sheet 7 to be printed is conveyed. The printing ink is transferred from the rubber cylinder 4 to the substrate or the plate 7 in the printing nip.

The substrate to be processed, in particular a panel 7, can in principle also have paper material, for. B. a sheet of paper or cardboard of greater thickness, for example up to at least 1 mm material thickness. The panels 7 are preferred but rigid panels 7 or contain or consist of a rigid material. In particular, the panels 7 are metallic panels 7, in particular sheet metal panels 7. The panels 7 in the preferred sense here are characterized, for. B. in contrast to thin sheets of paper, for example, characterized in that they have a considerably higher bending stiffness and / or a higher basis weight of z. B. have at least 1 kg / m ² , in particular 1 to 3 kg / m ² as thin sheets of paper. They are characterized, for example, by the fact that they are not wound on the curved surfaces of rotating transport cylinders or rollers, but rather by means of such rollers and cylinders, possibly with a slight deflection and / or possibly a negligible wrap, e.g. B. over less than 20 °, are only transported essentially in a straight line. As panels 7 in this sense, therefore come in addition to the preferred embodiment as metal panels 7, z. B. sheets 7, for example made of tinplate or aluminum sheet, also sheets 7 made of more sensitive material such. B. panels 7 made of plastic, wood, a composite or cardboard into consideration, in particular if they z. B. are rigid in the above sense.

The Fig. 2 shows, for example, a special panel 7 called scroll panel 7. The scroll panel 7 has at least one but preferably two irregular side edges or side surfaces. This means that one side surface of the scroll table 7 deviates from an in particular vertical spatial plane. The two side edges each have scroll sections 7.1. In addition to the alignment according to the front edge, for example at the front edge stops such as the contact marks 6, such scroll panels 7 also have to be aligned laterally in order to be processed in register-correct manner, in particular printed and / or painted. The dimensions shown are only examples and vary depending on the scroll panels 7 to be processed. This means that the scroll cutouts 7.1 are each located at different locations as soon as the front edge of the different scroll panels 7 lie on leading edge stops such as the leading marks 6 . The one between the scroll sections 7.1 located material sections representing the side edges of the scroll table 7 are also referred to as scroll ears.

The Fig. 3 shows a system 1 for a tabular substrate processing machine, for example as described above. A conveyor device 2, which has a feed frame, is provided for table conveying. The feed frame is shown here in two parts, for example, each part being held in a manner such that it can be displaced transversely to the transport direction T, for example on cross members. Each part of the feed frame has, in particular, circumferential belts or suction belts, preferably with rear drawers 8 which are not shown and which are spring-loaded. To set the format, one or both subframes can be moved transversely to the transport direction T. The feed frame has a side guide for the tabular substrate, in particular the panels 7, on at least one and preferably both sides. In particular, the two parts of the feed frame each have base bodies 10 facing away from one another, to which side guide devices can preferably be assigned interchangeably. A respective base body 10 is adjusted with the respective part of the feed frame transversely to the transport direction T to the respective format. The base body 10 can, for example, be of mirror-symmetrical design.

A single drive, in particular a servo motor 12, 13, is assigned to both the drive side and the operating side of the machine. A respective individual drive, in particular servo motor 12, 13, can engage a base body 10, for example. For example, each side guide device can be assigned to the base body 10, which can be displaced transversely to the transport direction T by the individual drive, in particular servo motor 12, 13. In this case, a single drive, in particular servo motor 12, 13, can preferably carry out both the setting of the lateral guide device to the current form and an oscillating movement for aligning the panels 7. Furthermore, the individual drives, in particular servomotors 12, 13, can also set other elements to the format will. For example, a respective part of the feed frame and / or a further lateral guide can be moved by the respective individual drive, in particular servo motor 12, 13. For example, a lateral guide rail can be shifted from the respective individual drive, in particular servo motor 12, 13, and can thus be set to the format. For format adjustment, these elements, in particular the guide rail, can be temporarily coupled to the individual drive, in particular the servo motor 12, 13. For example, a guide rail that can be format-adjusted by the individual drive, in particular servo motor 12, 13, can be designed as a tapered side guide rail 14 for a lateral pre-alignment.

A basic body 10, which is assigned to the respective part of the feed frame and is designed to accommodate a respective lateral guide device, is connected to an individual drive, in particular servo motor 12, 13, in such a way that this basic body 10, which is held in particular on guide means, such as traverses, can be displaced transversely to the transport direction T. An individual drive, in particular servo motor 12, 13, can preferably transmit a movement to the lateral guide device, for example to a base body 10 carrying a lateral guide device, via a threaded spindle. Alternatively, the individual drive can be designed as a linear drive or linear motor.

From the individual drive, in particular servo motor 12, 13, the respective base body 10 can in particular be positioned transversely to the transport direction T together with the part of the feed frame for setting the format. A base body 10 can be assigned a spring which limits the oscillation stroke and, when used on the thrust side, correspondingly limits the stroke. The oscillating movement of the side guide devices is preferably in phase opposition, ie the side guide devices move towards one another and away from one another at the same time. The oscillating movement is preferably synchronized with the table run in such a way that each table 7 or scroll table 7 at least or exactly once from touches the side guide devices and is aligned with it. The strokes of the oscillation movements can also be designed to be adjustable or changeable independently of one another. The strokes or movements can also be changed or adjusted while the machine is running.

A side guide device can be set as a side mark or as a side shift by means of a control device, for example the machine control, which is connected to both individual drives, in particular both servo motors 12, 13. The control device, in particular machine control, preferably controls both individual drives, in particular servomotors 12, 13, so that the brand pages can be switched over quickly without any retrofitting effort. The necessary values for the setting of system 1 can be taken from existing programs or entered using input means, for example at the control center of the machine. In a further development, a selection or setting of a spring travel of a spring, in particular for a thrust side, can also be carried out by means of actuators, for example from the control station.

A base body 10 can optionally be assigned, for example, a side guide device which has either a single roller or a plurality or a plurality of rollers for lateral guidance of the sheet-like substrate, in particular the sheets 7. In particular, both base bodies 10 are either used with a single roller device 25, preferably for guiding panels 7 having flat side edges or side surfaces, or side guide devices with a plurality or a plurality of rollers are used in each case. The side guiding devices with a plurality of rollers, for example two or at least three, preferably more than ten, particularly preferably more than twenty rollers, are used in particular for guiding panels 7 which are very thin and / or have no flat side edges or side surfaces. In particular lateral guide devices with a plurality of rollers are used to guide scroll plates 7 with lateral scroll cutouts 7.1.

The Fig. 4 shows a side guide device designed as a scroll rail 11, which can be assigned to one of the base bodies 10, for example the base body 10 lying on the operating side of the machine. The scroll rail 11 has a plurality, in particular at least three, preferably between ten and thirty, here for example twenty-seven, of guide rollers 23, which are each preferably rotatably mounted about an in particular vertical axis of rotation. The scroll rail 11 also has an in particular vertically oriented pendulum or pivot axis 20 about which the scroll rail 11 is pivotally mounted. The pivot axis 20 can, for example, be arranged at least approximately in the center of the scroll rail 11 with respect to the transport direction T. The entirety of the guide rollers 23 is thus preferably received so as to be displaceable about the pivot axis 20. The pivot axis 20 preferably forms a centrally located pivot point about which the scroll rail 11 is mounted in an oscillating manner. This particularly preferably enables compensation of an oblique cut of an incoming panel 7 or scroll panel 7.

The scroll rail 11 preferably has a guide means for guiding the undersides of the substrate, in particular a lower sliding plate 21 for guiding the panels 7 or scroll panels 7 on the underside thereof. The scroll rail 11 further preferably has a guide means for guiding the upper sides of the substrate, in particular an upper sliding plate 22 for guiding the plates 7 or scroll plates 7 on the upper side thereof. Between the lower sliding plate 21 and the upper sliding plate 22, the rotatably mounted guide rollers 23 for guiding the substrate side surfaces, in particular the scroll table side surfaces or scroll ears, are arranged.

The Fig. 5 shows a scroll rail 11 with at least one displaceable, in particular displaceable, sensor 24.2 for detecting a side edge or one Side surface while guiding the substrate, in particular a panel 7 or a scroll panel 7. The sensor 24.2 is preferably arranged on the scroll rail 11 in such a way that it pivots with the scroll rail 11 about the pivot axis 20. The position-changeable sensor 24.2 can be positioned manually or automatically in relation to the scroll rail 11 in such a way that it is outside the scroll plate 7 when the scroll plate 7 is aligned with front edge stops, in particular the application marks 6, or is located in the gripper system 9 of the cylinder, in particular the pressure cylinder 3 Excerpts 7.1 lies. In particular, the position of the sensor 24.2 can be determined from the format of the scroll table 7 or the dimensions of the scroll sections 7.1. The displaceable sensor 24.2 can be set manually or automatically, with in particular a fixing device being provided for fixing the positioned sensor 24.2. Positioning is preferably carried out by moving the sensor 24.2 in or against the transport direction T.

Furthermore, the scroll rail 11 can have at least or exactly two sensors 24.1, 24.2, wherein at least one of the sensors 24.2 can be designed to be displaceable. The displaceability of a sensor 24.2 can be achieved, for example, by means of a preferably ascertainable straight or linear guide. For example, a first sensor 24.1 can be assigned to the scroll rail 11 in a fixed manner and a second sensor 24.2 can be displaced and ascertained. The sensors 24.1, 24.2 are or are positioned in such a way that it is ensured that, in particular when the gripper system 9 of the pressure cylinder 3 closes, at least one sensor 24.1, 24.2 can measure the side edge of a scroll table 7 and does not lie in a scroll section 7.1 . The sensor or sensors 24.1, 24.2 are preferably designed as optical sensors, preferably as light barriers, in particular as fork light barriers.

The sensor or sensors 24.1, 24.2 are preferably connected to an evaluation device which evaluates the measured values determined by one or more sensors 24.1, 24.2, in particular on the drawing side. The measured values can also averaged or tendencies can be taken into account. The measured values or averaged measured values can be compared, for example, as actual values with predetermined target values, tolerance limits also being able to be taken into account. If the measured value lies outside a set tolerance limit, the specifically measured panel 7, in particular scroll panel 7, is discharged, for example in the subsequent process, and / or an optical and / or acoustic signal appears. Alternatively or additionally, a machine function, such as a machine stop, can also be initiated. However, the measured values can also be logged. On the basis of the protocols, later differentiated processing or separation of the panels 7 or scroll panels 7 can also take place.

The Fig. 6 shows a scroll rail 11 with stationary sensors 24, in particular three stationary sensors 24.1, 24.2, 24.3 being provided here. The sensors 24.1, 24.2, 24.3 are arranged on the scroll rail 11 in such a way that it is ensured that, in particular when the gripper system 9 of the pressure cylinder 3 closes, at least one of the sensors 24.1, 24.2, 24.3 has the side edge or side surface of a scroll table 7 can measure and is not in a scroll section 7.1. Using the three sensors 24.1, 24.2, 24.3, a wide range of possible embodiments of scroll tables 7 can be covered. The evaluation can be carried out in the same way as above via an evaluation device which can also be connected to the machine control or integrated in it. In the case of thin panels 7 or scroll panels 7, the use of scroll rails 11 is recommended.

The Fig. 7 shows a side guide device which can alternatively be assigned to a base body 10 and which is in particular designed as a single roller device 25. The single roller device 25 is interchangeably assignable to the base body 10 and, in addition to a lower slide plate 21, preferably comprises an upper pressure roller 26 which guides the lateral region of a panel 7 against the lower slide plate 21. The single roller device 25 also has one or only one around a vertical Rotation axis rotatably mounted guide roller 23, which guides the side panel edge or the side panel surface. The single roller device 25 is used in particular in the case of rectangular sheets 7.

The Fig. 8 shows a single roller device 25 with a sensor 24.1, which is designed, for example, as an optical sensor, preferably a light barrier, in particular a fork light barrier. The sensor 24.1 preferably has the same connections as a sensor 24.1, 24.2, 24.3 of a scroll rail 11, which enables easier assignment to the evaluation device. The connection of a sensor 24.1, 24.2, 24.3 to the evaluation device can also take place automatically by inserting the respective lateral guide device on the base body 10, for example by plug contact. Depending on the substrate to be processed, suitable lateral guiding devices are preferably used in the system of the machine.

On the mode of operation: the individual drives, in particular servomotors 12, 13, assigned to the side guiding devices, in particular the scroll rails 11 or individual roller devices 25, adjust one or both of them to the current format of the substrate, in particular to the width of a table 7 or to be processed Scroll table 7. In this case, further coupled elements such as one or two tapered side guide rails 14 can also be placed on the format.

The lateral guide devices, in particular the scroll rails 11 or the individual roller devices 25, are then oscillated by a respective individual drive, in particular a servo motor 12, 13, transversely to the transport direction T at least once per substrate to be processed, in particular board 7 or scroll board 7. The oscillation stroke of the lateral guide devices, in particular the scroll rails 11 or the individual roller devices 25, is carried out mechanically independently of one another or differentiated, that is to say individually, by the individual drives, in particular servomotors 12, 13.

The independently shortened strokes of the individual drives, in particular servomotors 12, 13, significantly reduce the impact speeds of the make and thrust. As a result, less unrest arises on the table 7 or scroll table 7, which in turn leads to a better page registration. The brand side can be changed simply, quickly and in a user-friendly manner, in particular by changing the program of the individual drives, in particular servomotors 12, 13.

Reference symbol list

1

investment

2nd

Conveyor

3rd

Pressure cylinder

4th

Rubber cylinder

5

Plate cylinder

6

Landing marks

7

Blackboard, scroll blackboard

7.1

Scroll cutout

8th

Backfeed

9

Gripper system

10th

Basic body

11

Scroll rail

12th

Servo motor

13

Servo motor

14

Lateral guide rail

./.

20th

Swivel axis

21st

lower sliding plate

22

upper sliding plate

23

Leadership role

24th

Sensors

25th

Single roll device

26

Pressure roller

T

Direction of transport

Claims (15)

Substrate processing machine for printing and / or painting tabular substrate (7) with a plant (1), the plant (1) having a transport system (2) for transporting the tabular substrate (7) in a transport direction (T), with lateral guide devices on both sides (11, 25) are provided, with which the sheet-like substrate (7) can be guided and / or aligned on the side faces thereof and the side guide devices (11, 25) can be moved transversely to the transport direction (T), characterized in that each side guide device ( 11, 25) a separate drive (12, 13) is assigned. Substrate processing machine according to claim 1, wherein the drives (12, 13) are designed as individually electronically controllable individual drives (12, 13) for independent oscillating movement at least once per sheet-like substrate (7) and / or for the format-setting movement of the side guide devices (11, 25). Substrate processing machine according to claim 1 or 2, wherein the drives (12, 13) are each assigned to a base body (10), to which either side guide devices (25) each having a guide roller (23) or side guide devices (11) each having a plurality of guide rollers (23 ) can be assigned. Substrate processing machine according to claim 1, 2 or 3, wherein an oscillation movement and / or an oscillation stroke of the lateral guide devices (11, 25) can be set, changed and / or executed independently of one another, in particular while the machine is running, by the drives (12, 13). Substrate processing machine according to claim 1, 2, 3 or 4, wherein the drives are designed as servomotors (12, 13), each of which has a base body (10) carrying a respective lateral guide device (11, 25) and / or a lateral guide (14) via a threaded spindle ) relocate. Substrate processing machine according to claim 1, 2, 3, 4 or 5, wherein the drives (12, 13) are connected to a common control device, which information can be entered via a drawing side and wherein the control of the drives (12, 13) depending on the Information is differentiated. Substrate processing machine according to claim 1, 2, 3, 4, 5 or 6, wherein a base body (10) selected as a pushing side and carrying a side guiding device (11, 25) has an intermediate spring with adjustable spring travel. Substrate processing machine according to claim 1, 2, 3, 4, 5, 6 or 7, wherein a spring travel transversely to the transport direction (T) between 1 mm and 4 mm can be adjusted on a fixed thrust side. Method for operating a substrate processing machine for printing and / or painting tabular substrate (7) with a system (1), the tabular substrate (7) being transportable in a transport direction (T) by a transport system (2) of the system (1) or is transported, with side guide devices (11, 25) on both sides for guiding and / or aligning the sheet-like substrate (7) on the side faces thereof, and wherein the side guide devices (11, 25) are moved transversely to the transport direction (T), characterized in that the movements of the lateral guide devices (11, 25) are driven mechanically independently of one another transversely to the transport direction (T). A method according to claim 9, wherein the movements of the lateral guide devices (11, 25) transversely to the transport direction (T) have a stroke of different sizes on both sides. A method according to claim 9 or 10, wherein oscillating movements of the side guide devices (11, 25) at least once per sheet-like substrate (7) and / or format setting movements of the side guide devices (11, 25) are set and / or carried out independently of one another. A method according to claim 9, 10 or 11, wherein depending on the sheet-like substrate (7) to be processed, side guiding devices (11, 25) each having one or more guiding rollers (23) are used. A method according to claim 9, 10, 11 or 12, wherein oscillating movements of the side guide devices (11, 25) are generated by independent drives (12, 13) and an oscillation stroke of the side guide devices (11, 25) is set as a function of a drawing side. A method according to claim 9, 10, 11, 12 or 13, wherein a pulling side is input to a control device and an oscillation stroke of the side guiding device (11, 25) is set smaller on the pulling side than on an opposite pushing side. The method of claim 9, 10, 11, 12, 13 or 14, wherein a control device is entered a spring travel for a thrust side and a drive (12, 13) arranged on the thrust side is controlled depending on the entered spring travel.

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