EP1172317B1 - Überwachungsvorrichtung für die Bogenzufuhr zu einer Bogen verarbeitenden Maschine und Verfahren zur Kontrolle des Bogenstromaufbaus des Bogenstroms - Google Patents
Überwachungsvorrichtung für die Bogenzufuhr zu einer Bogen verarbeitenden Maschine und Verfahren zur Kontrolle des Bogenstromaufbaus des Bogenstroms Download PDFInfo
- Publication number
- EP1172317B1 EP1172317B1 EP01113648A EP01113648A EP1172317B1 EP 1172317 B1 EP1172317 B1 EP 1172317B1 EP 01113648 A EP01113648 A EP 01113648A EP 01113648 A EP01113648 A EP 01113648A EP 1172317 B1 EP1172317 B1 EP 1172317B1
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- Prior art keywords
- sheet
- monitoring device
- sensing element
- stream
- sheet stream
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Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H7/00—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles
- B65H7/02—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors
- B65H7/06—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors responsive to presence of faulty articles or incorrect separation or feed
- B65H7/12—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors responsive to presence of faulty articles or incorrect separation or feed responsive to double feed or separation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
- B65H2511/10—Size; Dimensions
- B65H2511/13—Thickness
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
- B65H2511/20—Location in space
- B65H2511/21—Angle
- B65H2511/212—Rotary position
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
- B65H2511/20—Location in space
- B65H2511/22—Distance
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
- B65H2511/20—Location in space
- B65H2511/24—Irregularities, e.g. in orientation or skewness
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
- B65H2511/50—Occurence
- B65H2511/51—Presence
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
- B65H2511/50—Occurence
- B65H2511/515—Absence
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
- B65H2511/50—Occurence
- B65H2511/52—Defective operating conditions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
- B65H2511/50—Occurence
- B65H2511/52—Defective operating conditions
- B65H2511/524—Multiple articles, e.g. double feed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2513/00—Dynamic entities; Timing aspects
- B65H2513/50—Timing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2513/00—Dynamic entities; Timing aspects
- B65H2513/50—Timing
- B65H2513/512—Starting; Stopping
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2515/00—Physical entities not provided for in groups B65H2511/00 or B65H2513/00
- B65H2515/30—Forces; Stresses
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2553/00—Sensing or detecting means
- B65H2553/20—Sensing or detecting means using electric elements
- B65H2553/26—Piezoelectric sensors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2553/00—Sensing or detecting means
- B65H2553/60—Details of intermediate means between the sensing means and the element to be sensed
- B65H2553/61—Mechanical means, e.g. contact arms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2553/00—Sensing or detecting means
- B65H2553/80—Arangement of the sensing means
- B65H2553/81—Arangement of the sensing means on a movable element
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2555/00—Actuating means
- B65H2555/10—Actuating means linear
- B65H2555/14—Actuating means linear piezoelectric
Definitions
- the invention relates to a monitoring device for the sheet feed, in particular maruppte sheet feeder, to a sheet processing machine, according to preamble of réelles 1 and a method for controlling the Bogenstromtive or the Sheet flow during its transport into a sheet processing machine, according to the Claims 17 and 19.
- US 5,443,257 shows a device for transporting banknotes. This has u. a. a friction roller which can be brought into contact with the banknotes and which has an idling position is equipped to prevent and transport more than one bill at a time becomes. To set a distance of the friction roller, a piezo actuator is provided.
- EP 0 242 622 B1 discloses a monitoring device of the type referred to here, which has a scanning roller arranged above a feeder table, which can be displaced in the direction of the feeder table by means of an electric stepping motor.
- the scanning roller is coupled to a sensor which transmits a signal to a control device whenever at least two arcs overlap one another. It has been found that the monitoring device is of limited use and in those cases where a dynamic and very precise displacement of the cam follower is required, among other things due to the relatively sluggish stepping motor can not be used. It is therefore an object of the invention to provide a monitoring device of the type mentioned, which does not have this disadvantage.
- Another object of the invention is to provide a method for controlling the arc current, in which a high reliability can be ensured.
- a monitoring device with the features of claim 1 is proposed. This comprises at least one arranged above or below a sheet flow sensing element which is movable by means of an actuator in the direction of the arc current and away from the arc current.
- the monitoring device is characterized in that the actuator has at least one piezoelectric actuator or is formed by this. With the help of the piezoelectric actuator is a dynamic, so very fast and precise displacement of the probe element possible, which may be necessary for certain monitoring operations.
- the monitoring device of the piezoelectric actuator is constructed as described in DE 196 46 511 C 1 of the company marco system analysis and development GmbH, whose content is made with respect to the structure and function of the piezoelectric actuator to the subject of this description.
- the piezoactuator has a base body which has a stack structure constructed of ceramic lamellae.
- By appropriate electrical control of the piezoelectric actuator is pivotable about an axis lying in the centroid of the body axis or tilted, so that the probe element directly or with the interposition of a transmission gear in the direction of the arc current or a pad over which the sheet flow is transported, and displaced in the opposite direction is.
- a method with the features of claim 18 proposed in which to control the arc current structure or the Sheet flow during its transport into a sheet processing machine at least a probe element is displaceable in the direction of a counter-pressure element, via which the maruppte or single sheet having arc current out, that is transported.
- the method is characterized in that the probe element is turned on the arc current, that is pressed with defined force and this during its transfer into the Machine, such as a sheetfed press detected.
- the probe element in dependence of the respective current Bow current always shifted so compared to the arc current, that the contact force, with the probe element is pressed against the arc current, to a predeterminable value or within a predefinable value range is maintained.
- the path is determined, which the probe element against the preferably fixed, for example, formed by a feeder table Counter-pressure element is displaced. This can very accurately the thickness of the arc current be determined or measured, so that easily double and missing sheet be detected, which leads, for example, to the output of an error signal.
- the method is characterized by a high accuracy and also has a high reliability. It is also particularly advantageous that due to the constant holding force of the probe element to the counter-pressure element the measurement conditions are constant regardless of the respective arc current thickness. It is Therefore, without further automation of the arc or the Sheet thickness measurement and / or sheet current monitoring possible.
- the Contact pressure of the probe element is monitored to the arc current and that the over- or Falling below a limit value for the contact force an error signal is triggered, what For example, to a visual display of a fault or immediately to stop the Machine leads.
- the distance between the probe element and the counter-pressure element controlled by the relative movement of the probe element opposite the counter-pressure element for setting a constant contact pressure is measured / monitored, with an error signal can be output as soon as the distance of the probe element to the counter-pressure element a certain upper or lower Threshold exceeds or falls below. So, for example, occurs within the Bogenstrom a double arc on, so that at this point the thickness of the arc current is increased inadmissible, the probe element by means of a suitable, preferably dynamic actuator from the back pressure element so far away that the contact pressure of the probe element to the arc current remains at a constant value. Will the probe element but beyond a maximum allowable distance to the counterpressure element moves, a desired message takes place in the form of a signal.
- the characteristics of the Claim 20 has is for controlling the Bogenstrom awarded or the arc current during its transfer to a sheet processing Machine provided that initially the construction of the shingled or single sheet detecting arc current is detected, that is, it is determined how the Arc current thickness changed.
- the Bogenschreib arrangement first employed the probe element to the counter-pressure element, ie in Attachment brought and pressed with a defined force, for example, the zero point adjust and determine the machine vibrations. Then the arc current in the transported between the counter-pressure element and the probe element formed nip, so that the probe element now with preferably defined, in particular constant, force on the Arc current is pressed.
- the height profile contour of the arc current determined from the determined by the arc current detection Information is collected by means of a suitable device, such as a control and control device, the height profile contour of the arc current determined.
- the Arc current height profile is determined by the different thickness of the arc current, which may be scaled and / or arranged at a distance from each other single sheet having.
- the probe element of Arranged arc current so spaced from the arc current, and during the other Transfer of the arc current always in the direction of the arc current and in opposite direction, so shifted away from the arc current, that the clear distance between the sensing element and the arc current is constant or substantially constant.
- the probe element thus moves the arc current contour contactless, the Displacement movement of the probe element for adjusting the constant distance of Tastelement to the sheet flow in dependence of the machine speed takes place.
- the clear distance between the probe element and the arc current is so small that provided a double arc is present in the arc current, it causes a contact between the Double sheet and the feeler comes.
- This "collision" is in different ways ascertainable, for example by ascertaining when the double arch of the same force exerted on the probe element force. After recognition of the double sheet, the represents a fault in the arc current, an error message is issued, what For example, immediately leads to a stop of the machine.
- the probe element in dependence of Machine speed oscillating shifts to the arc current without contact Double or multiple sheets to monitor.
- the above or below the arc current arranged probe element is this linearly moved or along a circular path section.
- the probe element is in a through the height profile of the faultless arc current defined first end position in each between the Trailing edge of a previous sheet and trailing edge of a subsequent sheet Well retracted in the arc current top. For a double or multiple sheet the probe touches the arc current, resulting in an error indication.
- the device 1 described below can both for monitoring a maruppten sheet flow as well as a single sheet bow current without be used further.
- Figure 1 shows an embodiment of the device 1 for monitoring the shingled Sheet feed to a not shown, sheet processing machine, such as Press.
- the monitoring device 1 has a rigid, stationary arranged Carrier 3, on which an adjusting device 5 and here as a transmission gear serving lever mechanism 7 having housing 8 is mounted.
- the adjusting device 5 has an actuator 9, which is formed by a piezoelectric actuator 11 is.
- the construction and the function of the piezoactuator 11 is known, so that in the following only will be received shortly thereafter.
- the piezoactuator 11 has a cuboidal here Base body and is by appropriate electrical control to a perpendicular to Image plane of Figure 1 extending axis 13 defines clockwise and counterclockwise tiltable.
- the axis 13 lies in the centroid of the Piezoaktuators eleventh
- the lever mechanism 7 has a first lever 15 and a second lever 17 which are coupled together via an intermediate joint 19.
- the integrally formed second Lever 17 consists of a first part lever 21 and a second part lever 23, which has a Leaf spring 25 are connected together.
- the leaf spring 15 is thus in the second lever 17th integrated.
- the first part lever 21 has on its the leaf spring 25 opposite end the intermediate joint 19.
- the second part lever 23 has at its the leaf spring 25th opposite end of a sensing element 27, which is formed here by a cam follower 29 is, which is held freely rotatably about an axis 31 on the second part lever 23.
- Sub-lever 23 forwarded whereby the distance X of the sensing roller 29 with respect to one as Counter-pressure element serving pad 35, for example, from a feeder table is formed, on the one in Figure 1, not shown sheet flow in the direction of the arc processing machine is performed, is adjustable.
- the piezo actuator 11 With the help of the piezo actuator 11 is the Touch roller 29 with a defined force to the pad 35 or transported over it Single sheet or scaly bow stream pressed.
- the monitoring device 1 is above the counter-pressure element, that is, the pad 35 is arranged.
- the Monitoring device is arranged below the counter-pressure element.
- the counter-pressure element is formed purely by way of example from the base 35 here. at another embodiment, not shown, the counter-pressure element also from a roll or roller, a relatively taut conveyor belt or the like be formed.
- the monitoring device 1 further has an inductive displacement measuring system 37 here trained first sensor system, the second lever 17 and the first part lever 21 is assigned and serves to the position of the second lever 17 relative to detect the carrier 3 and the pad 35, so that an exact Positioning of the lever 17 and thus setting the contact pressure of the follower roller 29 to the Pad 35 or a guided over / transported Bow current is possible.
- an inductive displacement measuring system 37 here trained first sensor system, the second lever 17 and the first part lever 21 is assigned and serves to the position of the second lever 17 relative to detect the carrier 3 and the pad 35, so that an exact Positioning of the lever 17 and thus setting the contact pressure of the follower roller 29 to the Pad 35 or a guided over / transported Bow current is possible.
- a second sensor system embodied here as an inductive force measuring system 39 is provided by means of which the bending of the leaf spring 25 can be detected.
- the degree the deflection of the leaf spring 25 is thus a measure of the contact pressure of the follower roller 29 the pad 35 and the / the lying or transported over it Bow.
- the determined by means of the force measuring system 39 contact pressure is also a measure of the distance X of the sensing roller 29 against the base 35, since the distance X depends from the number of located between the sensing roller 29 and the pad 35 bow increased, if a measurement with constant force is to take place.
- the monitoring device 1 further comprises a control and not shown Control device comprising a microcontroller and suitable software with their Help automatically the scale structure and the sheet thickness / thickness can be determined.
- a control and not shown Control device comprising a microcontroller and suitable software with their Help automatically the scale structure and the sheet thickness / thickness can be determined.
- the Microcontroller is preferably integrated in the monitoring device 1, that is, he is mounted in or on the housing 8.
- the microcontroller also as separate unit located at a remote from the monitoring device 1 Place is arranged.
- the control and regulation device are also the Position measuring system 37 and the force measuring system 39 connected.
- the electrical control of the piezo actuator 11 by means of the control and Control device are performed.
- the control and regulating device forms together with the probe element 27, the Actuator 9 and the sensor systems 37, 39 an intelligent sensor, with its Help double, early, late, oblique and / or missing sheet can be determined and also one Measurement of the thickness of the arc current can be made.
- FIG. 5 shows a section of an embodiment of the scaled sheet flow 61, which is transported in the direction of an arrow 63 on the pad 35.
- the arc current 61 has a double bow 65, which is formed here of two adhering sheets.
- the sensing roller 29 is pressed with a defined force to the arc current and the Bogenstrom has a fault, for example, this double bow 65, the Thick difference of the arc current by a deflection movement of the with the help of Leaf spring 25 spring-loaded sensing roller 29 balanced.
- the contact force change is with Help of the force measuring system 39 can be determined, so that to set a constant Contact force of the sensing roller 29 to the arc current of the actuator 5, here the piezoelectric actuator 11th is electrically driven accordingly, resulting in an actuation of the lever mechanism '7 and thus to lift off or, in the case of a missing sheet, to lower the touch roller 29 opposite the pad 35 leads.
- the electromechanical monitoring device 1 enables a self-learning, automatic double sheet recognition in the bow scale or in a single sheet having arc current. Furthermore, a very small contact pressure of the follower roller 29 to the Bow current possible, this by means of the piezo actuator 11 very quickly and accurately is adjustable. It should be noted that with the monitoring device 1 a packet, Double-bow and thickness control can be performed. It is a compact and Space-saving design of the monitoring device 1 possible.
- the Monitoring device 1 also has the advantage that it also for thin sheets can be used.
- the measuring range of the monitoring device 1 is preferably in one Range from 0 mm to 6 mm. This is a very high resolution in the micrometer range realizable.
- FIG. 2 shows greatly enlarged the intermediate joint 19 between the first lever 15 and the first intermediate lever 21.
- the intermediate joint 19 has a defined pivot point 43 to the first part of the lever 21 and the second lever 17 by an electric Control of the piezo actuator 11 relative to the first lever 15 is rotated or is pivoted.
- FIG. 7 shows a further exemplary embodiment of the intermediate joint 19.
- FIG. 3 shows a greatly enlarged scale the second lever 17 in the region of the leaf spring 25. It can be seen that the leaf spring 25 is formed by that correspondingly shaped Sections 45 and 47 were introduced into the second lever 17.
- the leaf spring 25 has a small thickness D, which may be less than 1 mm.
- FIG. 8 shows another one Embodiment of the leaf spring 25th
- FIG. 4 shows a diagram in which the time t in seconds is plotted on the abscissa axis and the thickness D of the layer located between the follower roller 29 and the support 35, that is the distance X between the follower roller and the support in millimeters, is plotted on the ordinate axis.
- a first signal curve 49 is entered by a solid line and a second signal profile 51 by a dashed line, which shows an unfiltered signal or filtered signal, which can be determined with the aid of an exemplary embodiment of the monitoring device 1.
- the monitoring device 1 has a microcontroller and suitable software.
- the microcontroller In order to be able to carry out a monitoring of the arc current, the microcontroller only has to be given a start signal and the machine speed has to be entered.
- the microcontroller monitors the machine interface and takes over the value for the measuring force, ie the force with which the follower roller 29 is pressed against the base 35 or the feeder table at the start of the sheet feed. Then, the sensing roller 29 is moved against the Anlagertischober Chemistry by an electrical control of the piezo actuator 11 and that until the force measuring system 37 determines the predetermined contact pressure of the follower roller 29 to the feeder table or determines.
- the zero line 53 and the machine vibrations (P1) are determined. This occurs approximately during the first two machine revolutions.
- Monitoring device 1 an error signal. It becomes clear that already during the flake structure a double sheet or a missing sheet detected and as an error signal can be issued.
- the probe element of Arranged arc so in the embodiment shown in Figure 1 upwards drove away and during the further transfer of the arc current always in the direction shifted to the arc current and opposite direction, that the clear distance between the probe element and the arc current preferably constant, but at least in the Is essentially constant.
- the clocked displacement movement of the probe element relative relative to the arc current thus takes place as a function of the contour profile of the height profile the undisturbed arc current as well as the machine speed.
- FIG. 6 shows the height profile 67 of the section of the arc current 61 shown in FIG.
- the arc current 61 is in the construction, as a comparison with Figure 5 shows.
- the arc current 61 has a trouble-free, proper height profile.
- a recess 73 is formed due to the overlap of the arc, in which the probe element dips during its oscillating up and down movement, so that the distance between the probe element and the top of the Arc current in the region of the recess 73 as well as in the region of the elevations 75, within which the arc current 61 has its greatest thickness, is always constant.
- section C here is the double bow 65 ( Figure 5), whereby the arc current thickness 61 is thicker here exactly by an arc thickness, as in the section B and in the section C following section D. Since the oscillating movement of the probe element in response to the error-free Height profiles (sections B and D) determines and its approach to the pad during transport of the arc current is constant, the probe element abuts automatically in the region of the double bow 65 against the sheet stream 61, either when immersed in the recess 73 between two sheets or in the area the arc current in which this has its greatest thickness.
Landscapes
- Controlling Sheets Or Webs (AREA)
- Inking, Control Or Cleaning Of Printing Machines (AREA)
- Sheets, Magazines, And Separation Thereof (AREA)
Description
Es ist daher Aufgabe der Erfindung, eine Überwachungsvorrichtung der eingangs genannten Art zu schaffen, die diesen Nachteil nicht aufweist. Ein weiteres Ziel der Erfindung besteht darin, ein Verfahren zur Kontrolle des Bogenstroms anzugeben, bei dem eine hohe Funktionssicherheit gewährleistet werden kann.
Zur Lösung der Aufgabe wird eine Überwachungsvorrichtung mit den Merkmalen des Anspruchs 1 vorgeschlagen. Diese umfasst mindestens ein oberhalb oder unterhalb eines Bogenstroms angeordnetes Tastelement, das mittels eines Stellantriebs in Richtung auf den Bogenstrom und weg vom Bogenstrom bewegbar ist. Die Überwachungsvorrichtung zeichnet sich dadurch aus, dass der Stellantrieb mindestens einen Piezoaktuator aufweist oder von diesem gebildet ist. Mit Hilfe des Piezoaktuators ist eine dynamische, also sehr schnell und präzise Verlagerung des Tastelements möglich, was bei bestimmten Überwachungsvorgängen notwendig sein kann.
Bei einem besonders vorteilhaften Ausführungsbeispiel der Überwachungsvorrichtung ist der Piezoaktuator so aufgebaut, wie in der DE 196 46 511 C 1 der Firma marco Systemanalyse und Entwicklung GmbH beschrieben, deren Inhalt bezüglich des Aufbaus und der Funktion des Piezoaktuators zum Gegenstand dieser Beschreibung gemacht wird. Der Piezoaktuator weist einen Grundkörper auf, der eine aus Keramiklamellen aufgebaute Stapelstruktur besitzt.
Durch entsprechende elektrische Ansteuerung des Piezoaktuators ist dieser um eine im Flächenschwerpunkt des Grundkörpers liegende Achse schwenkbar beziehungsweise kippbar, so dass das Tastelement direkt oder unter Zwischenschaltung eines Übersetzungsgetriebes in Richtung des Bogenstroms beziehungsweise einer Unterlage, über den der Bogenstrom transportiert wird, und in entgegengesetzter Richtung verlagerbar ist.
- Figur 1
- eine Seitenansicht und eine Schnittansicht eines Ausführungsbeispiels der erfindungsgemäßen Überwachungsvorrichtung;
- Figur 2
- einen in Figur 1 mit gestrichelter Linie A-A gekennzeichneten Bereich der Überwachungsvorrichtung in stark vergrößertem Maßstab;
- Figur 3
- einen in Figur 1 mit gestrichelter Linie B-B gekennzeichneten Bereich der Überwachungsvorrichtung in stark vergrößertem Maßstab;
- Figur 4
- ein Diagramm, in dem die Dicke eines Bogenstroms in Abhängigkeit der Zeit aufgetragen ist;
- Figur 5
- einen Ausschnitt eines geschuppten, einen Doppelbogen aufweisenden Bogenstroms in Seitenansicht;
- Figur 6
- das Höhenprofil des in Figur 5 dargestellten Ausschnitts des Bogenstroms;
- Figur 7
- ein weiteres Ausführungsbeispiel eines Zwischengelenks eines Hebelmechanismus' und
- Figur 8
- ein weiteres Ausführungsbeispiel einer als Gelenk zwischen zwei Teilhebeln dienende Blattfeder.
durch den Mikrokontroller eine Fehlermeldung beziehungsweise ein Fehlersignal ausgegeben wird, was beispielsweise zu einem Abschalten der Maschine führt.
Claims (22)
- Überwachungsvorrichtung für die Bogenzufuhr zu einer Bogen verarbeitenden Maschine, insbesondere Bogendruckmaschine, mit mindestens einem oberhalb oder unterhalb des Bogenstroms angeordneten Tastelement, das mittels einer einen Stellantrieb aufweisenden Stelleinrichtung in Richtung auf den Bogenstrom und in entgegengesetzter Richtung verlagerbar ist,
dadurch gekennzeichnet, dass der Stellantrieb (9) mindestens einen Piezoaktuator (11) aufweist oder von diesem gebildet ist und
dass mindestens ein erstes Sensorsystem (37) zur Ermittlung der Auslenkung des aus einer Ruhelage auslenkbaren Tastelements (27) vorgesehen ist. - Überwachungsvorrichtung nach Anspruch 1,
dadurch gekennzeichnet, dass der Piezoaktuator (11) durch entsprechende elektrische Ansteuerung um eine Achse (13) kippbar ist. - Überwachungsvorrichtung nach Anspruch 2,
dadurch gekennzeichnet, dass die Achse (13) im oder im Wesentlichen im Flächenschwerpunkt des Piezoaktuators (11) liegt. - Überwachungsvorrichtung nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, dass der Piezoaktuator (11) an einem gegenüber dem Bogenstrom ortsfest angeordneten, starren Träger (3) angebracht ist. - Überwachungsvorrichtung nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, dass der Piezoaktuator (11) mit einem mit dem Tastelement (27) gekoppelten, mindestens einen Hebel aufweisenden Hebelmechanismus (7) zusammenwirkt. - Überwachungsvorrichtung nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, dass der Hebelmechanismus (7) einen unmittelbar mit dem Piezoaktuator (11) zusammenwirkenden ersten Hebel (15) und einen das Tastelement (27) aufweisenden zweiten Hebel (17) besitzt, wobei die Hebel (15,17) so miteinander gekoppelt sind, dass eine Bewegung des Piezoaktuators (11) in Bezug auf das Tastelement (27) übersetzt wird. - Überwachungsvorrichtung nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, dass der zweite Hebel (17) einen ersten Teilhebel (21) und einen zweiten Teilhebel (23) aufweist, die über mindestens eine Blattfeder (25) miteinander verbunden sind. - Überwachungsvorrichtung nach Anspruch 7,
dadurch gekennzeichnet, dass das erste Sensorsystem (37) dem zweiten Hebel (17) zugeordnet ist. - Überwachungsvorrichtung nach einem der vorhergehenden Ansprüche 7 oder 8,
dadurch gekennzeichnet, dass das erste Sensorsystem (37) dem mit dem ersten Hebel (15) gekoppelten ersten Teilhebel (21) zugeordnet ist. - Überwachungsvorrichtung nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, dass mindestens ein zweites Sensorsystem (39) zur Ermittlung der Verbiegung der Blattfeder (25) vorgesehen ist. - Überwachungsvorrichtung nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, dass ein Anschlag (41), gegen den der mit dem Tastelement (27) gekoppelte zweite Teilhebel (23) bei Überschreiten einer bestimmten Anpresskraft des Tastelements (27) an den Bogenstrom anschlägt, vorgesehen ist. - Überwachungsvorrichtung nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, dass das erste Sensorsystem (37) und/oder das zweite Sensorsystem (39) ein - insbesondere induktives - Wegmesssystem oder Kraftmesssystem sind/ist. - Überwachungsvorrichtung nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, dass eine Steuerungs- und Regelungseinrichtung vorgesehen ist, mit der die ersten und zweiten Sensorsysteme (37,39) verbunden sind und mittels derer der Stellantrieb (9) ansteuerbar ist. - Überwachungsvorrichtung nach Anspruch 13,
dadurch gekennzeichnet, dass die Steuerungs- und Regelungseinrichtung in einem den Stellantrieb (9) aufweisenden Gehäuse angeordnet ist. - Überwachungsvorrichtung nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, dass die Steuerungs- und Regelungseinrichtung, das mindestens eine Sensorsystem (37;39), das Tastelement (27) und der Stellantrieb (9) einen intelligenten Sensor bilden. - Überwachungsvorrichtung nach Anspruch 15,
dadurch gekennzeichnet, dass mittels des Sensors Doppelbogen, Frühbogen, Spätbogen, Schrägbogen und/oder Fehlbogen ermittelbar sind und/oder eine Dickenmessung an einem einzelnen Bogen oder am Bogenstrom durchführbar ist. - Verfahren zur Kontrolle des Bogenstromaufbaus beziehungsweise des Bogenstroms während seiner Überführung in eine Bogen verarbeitende Maschine, bei dem mindestens ein Tastelement mittels eines Piezoaktuators in Richtung eines Gegendruckelements verlagerbar ist, über das der geschuppte oder Einzelbogen aufweisende Bogenstrom geführt ist,
dadurch gekennzeichnet, dass das Tastelement an den Bogenstrom angestellt wird und diesen während seiner Überführung in die Maschine detektiert, und dass das Tastelement in Abhängigkeit der momentanen Bogenstromdicke immer so gegenüber dem Bogenstrom verlagert wird, dass die Anpresskraft, mit der das Tastelement an den Bogenstrom angepresst wird, auf einem vorgebbaren Wert beziehungsweise innerhalb eines vorgebbaren Wertebereichs gehalten wird. - Verfahren nach Anspruch 17,
dadurch gekennzeichnet, dass die Anpresskraft des Tastelements an den Bogenstrom überwacht wird und dass beim Überschreiten oder Unterschreiten eines Grenzwertes ein Fehlersignal ausgelöst wird. - Verfahren zur Kontrolle des Bogenstromaufbaus beziehungsweise des Bogenstroms während seiner Überführung in eine Bogen verarbeitende Maschine, bei dem mindestens ein Tastelement mittels eines Piezoaktuators in Richtung eines Gegendruckelements verlagerbar ist, über das der geschuppte oder Einzelbogen aufweisende Bogenstrom geführt ist, mit folgenden Schritten:Erkennung des Bogenstromaufbaus, indem das Tastelement zu Beginn der Bogenüberführung den Bogenstrom berührend detektiert,aus den durch die Bogenstromdetektion ermittelten Informationen wird das Höhenprofil des Bogenstroms ermittelt,das Tastelement wird danach vom Bogenstrom abgestellt und während der weiteren Überführung des Bogenstroms immer so in Richtung auf den Bogenstrom und in entgegengesetzter Richtung verlagert, dass der lichte Abstand zwischen dem Tastelement und dem Bogenstrom konstant oder im Wesentlichen konstant ist,bei einer Störung des Bogenstroms wird eine Fehlermeldung ausgegeben.
- Verfahren nach Anspruch 19,
dadurch gekennzeichnet, dass das Tastelement in Abhängigkeit der Geschwindigkeit der Bogen verarbeitenden Maschine oszillierend verlagert wird, um die Kontur beziehungsweise das Höhenprofil des Bogenstroms berührungslos zu überwachen. - Verfahren nach einem der vorhergehenden Ansprüche 19 oder 20,
dadurch gekennzeichnet, dass das Tastelement bei einem Einzelbogen aufweisenden Bogenstrom in einer ersten Endlage in mindestens einen, vorzugsweise in jeden Freiraum eintaucht, der zwischen einem vorhergehenden Bogen und einem mit einem Abstand unmittelbar nachfolgenden Bogen gebildet ist. - Verfahren nach einem der vorhergehenden Ansprüche 19 oder 20,
dadurch gekennzeichnet, dass das Tastelement bei einem geschuppten Bogenstrom in einer ersten Endlage in mindestens eine, vorzugsweise in jede Vertiefung eintaucht, die sich zwischen der Hinterkante eines vorhergehenden Bogens und der Hinterkante eines nachfolgenden, vom vorhergehenden Bogen überlappten Bogens befindet.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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DE10033638A DE10033638A1 (de) | 2000-07-11 | 2000-07-11 | Überwachungsvorrichtung für die Bogenzufuhr zu einer Bogen verarbeitenden Maschine und Verfahren zur Kontrolle des Bogenstromaufbaus des Bogenstroms |
DE10033638 | 2000-07-11 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1172317A2 EP1172317A2 (de) | 2002-01-16 |
EP1172317A3 EP1172317A3 (de) | 2003-12-10 |
EP1172317B1 true EP1172317B1 (de) | 2005-08-17 |
Family
ID=7648530
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EP01113648A Expired - Lifetime EP1172317B1 (de) | 2000-07-11 | 2001-06-19 | Überwachungsvorrichtung für die Bogenzufuhr zu einer Bogen verarbeitenden Maschine und Verfahren zur Kontrolle des Bogenstromaufbaus des Bogenstroms |
Country Status (5)
Country | Link |
---|---|
US (1) | US6561509B2 (de) |
EP (1) | EP1172317B1 (de) |
JP (1) | JP2002087640A (de) |
AT (1) | ATE302153T1 (de) |
DE (2) | DE10033638A1 (de) |
Cited By (1)
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---|---|---|---|---|
EP2660172A2 (de) | 2012-05-02 | 2013-11-06 | manroland sheetfed GmbH | Falschbogenkontrolle einer Bogendruckmaschine |
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US7182339B2 (en) * | 2002-01-09 | 2007-02-27 | Lockheed Martin Corporation | Thickness measuring system, having improved software, for use within a mail handling system, and method of using same |
JP3693993B2 (ja) * | 2002-01-28 | 2005-09-14 | 日立オムロンターミナルソリューションズ株式会社 | 紙葉類確定装置 |
WO2003101871A1 (fr) * | 2002-06-04 | 2003-12-11 | Canon Kabushiki Kaisha | Procede de detection d'alimentation en double de feuilles et dispositif servant a detecter l'alimentation en double de feuilles |
FR2842127A1 (fr) * | 2002-07-11 | 2004-01-16 | Solystic | Procede de detection de prises multiples dans une installation de tri postal |
JP2004161444A (ja) * | 2002-11-14 | 2004-06-10 | Canon Inc | シート材判別装置 |
US7082832B2 (en) * | 2003-01-06 | 2006-08-01 | Canon Kabushiki Kaisha | Sheet material identifying device and image forming apparatus having sheet material identifying device |
DE10345488B3 (de) * | 2003-10-01 | 2005-03-24 | Koenig & Bauer Ag | Verfahren und Vorrichtung zur Detektion von Überschießbogen |
JP4714595B2 (ja) * | 2006-01-31 | 2011-06-29 | リョービ株式会社 | 重畳検知装置 |
DE102006015190A1 (de) * | 2006-04-01 | 2007-10-04 | Man Roland Druckmaschinen Ag | Tasteinrichtung für einen Stapel |
DE102007007993A1 (de) * | 2006-04-01 | 2007-10-04 | Man Roland Druckmaschinen Ag | Aktive Bogenführungs- und Bogenleitelemente |
JP2007322558A (ja) | 2006-05-30 | 2007-12-13 | Canon Inc | 水分量推定装置、シート材処理装置、水分量推定方法、及びシート材処理方法 |
DE102007061396A1 (de) | 2007-12-19 | 2009-06-25 | Koenig & Bauer Aktiengesellschaft | Vorrichtung zur Verhinderung des Einlaufens von Überschießbogen in eine Bogendruckmaschine |
US7862040B2 (en) * | 2008-12-22 | 2011-01-04 | Pitney Bowes Inc. | Item feeder with overthickness detection |
US8511807B2 (en) * | 2010-11-11 | 2013-08-20 | Xerox Corporation | Image transfix apparatus using high frequency motion generators |
CN104183053B (zh) * | 2013-05-24 | 2016-08-17 | 北京嘉岳同乐极电子有限公司 | 厚度检测装置及其制造方法 |
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US3826487A (en) * | 1972-01-24 | 1974-07-30 | Polygraph Leipzig | Control apparatus and method for transporting sheets |
CH660350A5 (de) * | 1983-06-14 | 1987-04-15 | Ferag Ag | Einrichtung zum feststellen mehrfach belegter plaetze in einem kontinuierlich gefoerderten strom von gleichmaessige abstaende voneinander aufweisenden druckprodukten sowie verwendung dieser einrichtung. |
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DE4436102C2 (de) * | 1994-10-10 | 2000-01-05 | Heidelberger Druckmasch Ag | Vorrichtung zur kontrollierten Übertragung von Druckfarbe |
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-
2000
- 2000-07-11 DE DE10033638A patent/DE10033638A1/de not_active Withdrawn
-
2001
- 2001-06-19 DE DE50107099T patent/DE50107099D1/de not_active Expired - Lifetime
- 2001-06-19 AT AT01113648T patent/ATE302153T1/de not_active IP Right Cessation
- 2001-06-19 EP EP01113648A patent/EP1172317B1/de not_active Expired - Lifetime
- 2001-07-11 US US09/903,355 patent/US6561509B2/en not_active Expired - Fee Related
- 2001-07-11 JP JP2001211243A patent/JP2002087640A/ja not_active Withdrawn
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2660172A2 (de) | 2012-05-02 | 2013-11-06 | manroland sheetfed GmbH | Falschbogenkontrolle einer Bogendruckmaschine |
DE102012220200A1 (de) | 2012-05-02 | 2013-11-07 | manroland sheetfed GmbH | Falschbogenkontrolle einer Bogendruckmaschine |
EP2660172A3 (de) * | 2012-05-02 | 2015-12-09 | manroland sheetfed GmbH | Falschbogenkontrolle einer Bogendruckmaschine |
Also Published As
Publication number | Publication date |
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DE10033638A1 (de) | 2002-01-24 |
DE50107099D1 (de) | 2005-09-22 |
EP1172317A3 (de) | 2003-12-10 |
ATE302153T1 (de) | 2005-09-15 |
US6561509B2 (en) | 2003-05-13 |
US20020060420A1 (en) | 2002-05-23 |
EP1172317A2 (de) | 2002-01-16 |
JP2002087640A (ja) | 2002-03-27 |
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