EP3077307B1 - Dispositif de sortie d'une machine de traitement de feuilles et procédé pour faire fonctionner une machine de traitement de feuilles - Google Patents

Dispositif de sortie d'une machine de traitement de feuilles et procédé pour faire fonctionner une machine de traitement de feuilles Download PDF

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Publication number
EP3077307B1
EP3077307B1 EP14806645.9A EP14806645A EP3077307B1 EP 3077307 B1 EP3077307 B1 EP 3077307B1 EP 14806645 A EP14806645 A EP 14806645A EP 3077307 B1 EP3077307 B1 EP 3077307B1
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EP
European Patent Office
Prior art keywords
sheet
transport direction
point
monitored
leading edge
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP14806645.9A
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German (de)
English (en)
Other versions
EP3077307A2 (fr
Inventor
Volkmar Schumann
Volker Taschenberger
Matthias Förster
René Persicke
Steffen TÜRKE
Thomas Winkler
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Koenig and Bauer AG
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Koenig and Bauer AG
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/02—Delivering or advancing articles from machines; Advancing articles to or into piles by mechanical grippers engaging the leading edge only of the articles
    • B65H29/04—Delivering or advancing articles from machines; Advancing articles to or into piles by mechanical grippers engaging the leading edge only of the articles the grippers being carried by endless chains or bands
    • B65H29/041—Delivering or advancing articles from machines; Advancing articles to or into piles by mechanical grippers engaging the leading edge only of the articles the grippers being carried by endless chains or bands and introducing into a pile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/58—Article switches or diverters
    • B65H29/585—Article switches or diverters taking samples from the main stream
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H43/00—Use of control, checking, or safety devices, e.g. automatic devices comprising an element for sensing a variable
    • B65H43/04—Use of control, checking, or safety devices, e.g. automatic devices comprising an element for sensing a variable detecting, or responding to, presence of faulty articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/44—Moving, forwarding, guiding material
    • B65H2301/443—Moving, forwarding, guiding material by acting on surface of handled material
    • B65H2301/4433—Moving, forwarding, guiding material by acting on surface of handled material by means holding the material
    • B65H2301/44331—Moving, forwarding, guiding material by acting on surface of handled material by means holding the material at particular portion of handled material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/50—Auxiliary process performed during handling process
    • B65H2301/53—Auxiliary process performed during handling process for acting on performance of handling machine
    • B65H2301/531—Cleaning parts of handling machine
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/10—Means using fluid made only for exhausting gaseous medium
    • B65H2406/12—Means using fluid made only for exhausting gaseous medium producing gas blast
    • 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
    • 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
    • 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
    • B65H2553/30—Sensing or detecting means using acoustic or ultrasonic elements
    • 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
    • B65H2553/40—Sensing or detecting means using optical, e.g. photographic, elements
    • B65H2553/41—Photoelectric detectors
    • B65H2553/414—Photoelectric detectors involving receptor receiving light reflected by a reflecting surface and emitted by a separate emitter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/17—Nature of material
    • B65H2701/176—Cardboard

Definitions

  • the invention relates to delivery of a sheet processing machine with a sheet to a delivery stack and with a sheet leading edge of the sheet on at least two leading edge stops transporting sheet conveying system and method for operating a sheet processing machine.
  • the sheets are transported by the endless circulating sheet conveying system successively on the sheet stack and with the sheet leading edge against leading edge stops.
  • the sheet stacks are provided in such a jib laterally in the upper region associated stop surfaces to which a transversely directed to the sheet transport direction, reciprocating motion is impressed, whereby the sheets are aligned with respect to their side edge.
  • the position of the side edges of the arc fed from the sheet conveying system to the sheet stack with respect to the abutment surfaces is detected by also provided laterally ultrasonic sensors. In case of deviations of the actual position of the target position adjusting elements are activated to correct the sheet position or the sheet promotion is interrupted.
  • the measure that the sheet feed is interrupted in case of deviations of the position of the side edges of a desired position reduces the effectiveness of the sheet processing machine in that all sheets are in the machine waste paper.
  • the measuring device is designed as a touch sensor, which can detect the Bogenanashsheed and further the contact intensity.
  • the measuring device is designed as a receiver of a light beam emitted by a light source.
  • a connected control and regulating device changes the timing of the gripper opening and / or the speed (peripheral speed) of the suction roller and / or the suction force of the suction roller and / or the blowing intensity of the fan.
  • a disadvantage of this solution is that no crooked or overshoot bow can be detected.
  • a device for protecting the gripper systems is known in which a mechanical Koch automattrolle is provided.
  • the overshoot arch control contains feeler links that are pivoted about a frame point in an overshoot arc. By swiveling the feeler links, the machine receives the signal "Emergency stop".
  • a disadvantage of this solution is that the mechanical scanning of overspill is prone to errors, since the sensing elements cause a safe distance to the gripper carriage track. Will not make an overdelivery detected, the machine can be damaged especially at high speeds. Another disadvantage is that no crooked sheets are detected as such.
  • a device for detecting irregular sheet design wherein the boom has a first and a second sheet stack downstream therefrom.
  • the front edge stops of the first sheet stack is assigned a non-contact sensor that detects an irregular sheet transport and stops the sheet processing machine. This is wasteful, which must be removed from the machine time-consuming, with the individual sensor detects only very far overshoot, while oblique sheets can not be detected as such.
  • the invention has for its object to provide a boom of a sheet-processing machine.
  • the boom is designed so that accidents can be safely ruled by entrained bow and the effectiveness of the machine is increased.
  • a boom of a sheet processing machine is provided with a sheet to a delivery stack and with a sheet leading edge of the sheet on at least two leading edge stops conveying sheet conveying system, wherein at least one the position of the sheet contactless monitoring detection unit is provided and wherein the at least one detection unit for monitoring at least one point is formed, which is downstream in the sheet transport direction of a spanned by the at least two leading edge stops stop plane, wherein the at least one monitored point is within a range extending from the stop plane beginning to 100 mm in the sheet transport direction.
  • the monitored point is off-center, ie, the monitored point is placed across the machine width spaced from the machine center.
  • a boom of a sheet processing machine includes a sheet conveying system that transports the sheets to a delivery stack and to the sheet leading edge at leading edge stops.
  • the sheet conveying system preferably includes gripper systems arranged on traction means, which are conveyed by guide means guided along an orbit. Of the gripper systems, the sheets are brought to a boom arranged in the boom and released there. The released bows are aligned with the leading edge on the leading edge stops and are thereby aligned. The aligned sheets settle on the delivery pile. It is a the position of the sheet leading edge contactless monitoring detection unit provided, which is designed to monitor at least one point, which is downstream in the sheet transport direction of a spanned by the leading edge stops stop plane.
  • the boom is preferably designed as a single-stack boom, ie it is only a single boom stack formed in the boom. Accordingly, only one Stapelhubvoriques is provided in this boom.
  • the stop plane is clamped by at least two front edge stops, which are preferably arranged in a straight line at least in a linear manner, on the front side of the delivery pile.
  • the leading edge stops each have stop surfaces that span the stop plane.
  • the detection unit is arranged such that the point monitored by it lies within a range which extends from the stop plane beginning to 100 mm in the sheet transport direction.
  • the sheet transport direction is preferably the normal vector to the stop plane spanned by the leading edge stops.
  • the stop level here is a room level.
  • the spatial plane is particularly preferably unbent. As a rule, the stop plane is vertical, but may also include an angle with the vertical.
  • a detection of obliquity can be made.
  • the monitored point is preferably an area of minimum extent, but may also be a geometric area or a surveillance area.
  • the monitored point is arranged at a distance from the stop plane. In a further development of the monitored point is within an area that extends 1 mm after the stop level beginning to 50 mm in the sheet transport direction. In a particularly preferred embodiment, the monitored point is within an area which extends 2 mm after the stop plane beginning to 10 mm in the sheet transport direction. This also ensures the detection of minimal obliquity over the leading edge stops.
  • Any machine functions can be triggered with a detected obliquity.
  • the detection unit is designed to monitor at least two points which are at a distance from one another transversely to the sheet transport direction, that is to say over the machine width.
  • these two points are evenly spaced from the stop plane.
  • these are also arranged in the leading edge stops in the sheet transport direction immediately adjacent area.
  • these are at least two points within a to be processed with the boom minimum sheet format.
  • the machine is designed to process a range of different sheet formats whose upper limit is formed by the maximum sheet size and the lower limit by the minimum sheet size.
  • the technical implementation of the possibility of processing various sheet formats is realized by the formation of means for format adjustment.
  • the machine preferably has format adjustment means such as adjustable sheet guiding elements, stop elements, gripper elements or an activability of subsystems.
  • the arrangement of the points to be monitored takes place symmetrically to the machine center, as far as the minimum to be processed sheet format is aligned symmetrically to the machine center.
  • the points to be monitored by the detection device can be arranged analogously in the minimal sheet format.
  • a shift of a point to be monitored can further z. B. by an adjustment of a sensor, a change of position of the sensor or a deflection of a sensor beam done.
  • the minimum working width may be about 45% of the maximum working width to be processed.
  • a differentiated evaluation of the signals obtained is preferably carried out in conjunction with an evaluation unit.
  • the differentiated evaluation it is preferable to make a minimal distinction as to whether there is an overshoot arc with respect to the leading edge stops or only a crooked arc with respect to the leading edge stops which lies only partially over the leading edge stops.
  • suitable machine functions are therefore initiated. The machine functions may differ according to the differentiated evaluation of the signals.
  • points preferably points outside the minimum sheet format are selected. Points are selected in a larger sheet format, in particular at the outer sheet edges of the maximum sheet format, which are preferably evenly spaced from the stop plane. Most preferably, the further points are arranged approximately as far away in the sheet transport direction away from the stop plane as the points arranged in the minimal sheet format. Thus, all, preferably four, points are also arranged in the area directly adjacent to the leading edge stops in the sheet transport direction. The further points are preferably also in the same horizontal plane as the points set to the minimum sheet format.
  • scanning sensors arranged in the minimal sheet format can also be designed to be adjustable and / or movable.
  • a mobility of the scanning sensors transversely to the sheet transport direction can allow adjustment to the current sheet size.
  • the other points lying outside of the minimum sheet format can also be developed by adjustable or movable scanning sensors be monitored.
  • the scanning sensors may include, for example, sensors / receivers.
  • the detection unit monitors at least two points which are spaced one behind the other in the sheet transport direction. Preferably, these points are therefore spaced differently far from the stop plane, wherein at least the first point in the sheet transport direction is within a range of the stop plane to 100 mm in the sheet transport direction.
  • the monitoring of the at least two points can be done by a single detection unit or by multiple detection units.
  • the monitored points are preferably evaluated independently of one another by an evaluation unit connected to the at least one detection unit or can be evaluated differently with respect to one another.
  • an evaluation of the two successive lying in the sheet transport direction points independently of each other, such that when a detected overshoot a machine function is triggered, which is independent of the evaluation of the other point.
  • an emergency stop is initiated when a safety-relevant overshoot arc is detected in the point downstream in the sheet transport direction.
  • the monitoring of the at least one point by the detection unit by means of a sensor beam generated by the detection unit.
  • the detection unit has for this purpose a sensor / receiver, wherein the sensor for generating the sensor beam and the receiver for receiving this beam are set up.
  • Sensor / receiver can be arranged on opposite sides of the rotating gripper systems or be arranged above or below the rotating gripper systems and cooperate with an opposite reflector. It is preferably provided to equip the detection unit with a sensor / receiver and a reflector, wherein the reflector is arranged on the side opposite the sensor / receiver side of the rotating gripper systems.
  • the reflector is associated with the leading edge stops, whereby a compressed construction can be achieved.
  • the reflector can be arranged at least partially between two leading edge stops. Particular preference is given to using photosensors, for example lasers. However, ultrasonic sensors or other suitable sensors can also be used.
  • the reflector is associated with a frame-fixed recording, wherein the reflector can also be integrated in the surface of the recording.
  • the sensor / receiver of the detection unit is advantageously arranged on a holder within a deflection region of the sheet conveying system.
  • the holder is designed as a traverse arranged over the machine width, which has an opening for the sensor / receiver.
  • the traverse can be connected independently or with a blow frame.
  • the sensor beam monitors the area between transmitter / receiver and in the version with a reflector between the transmitter / receiver and the reflector.
  • the sensor beam is preferably formed at least approximately parallel to the stop plane and most preferably at least approximately perpendicular.
  • the monitoring of the at least one point also during a test sheet removal and / or a stack change.
  • a permanent monitoring of at least one point with only passing gripper systems are hidden. It may be provided to filter or hide an error signal caused by the gripper systems.
  • the suppression of the gripper systems takes place under consideration of tolerances. As tolerances, for example, 5 ° to 10 ° based on a machine angle can be provided before and after a gripper system. Particularly preferably, an uninterrupted monitoring is carried out in each case between two directly successive gripper systems.
  • An outrigger of a sheet processing machine includes a sheet delivery system that transports the sheets to a delivery stack and the sheet leading edge to leading edge stops.
  • the sheet conveying system preferably includes gripper systems arranged on traction means, which are conveyed by guide means guided along an orbit. Of the gripper systems, the sheets are brought to a boom arranged in the boom and released there.
  • the released bows are aligned with the leading edge on the leading edge stops and are thereby aligned.
  • the aligned sheets settle on the delivery pile. It is a the position of the sheet leading edge monitoring detection unit provided, which is designed to monitor at least one point.
  • the detection unit is in this case designed to detect the angular position of the sheet leading edge with respect to the leading edge stops or for detecting the presence of a sheet at at least two spaced-apart points and with respect to the spaced points differentiating monitoring.
  • the position of the sheet leading edge preferably means the presence or absence of a sheet area at a defined time or the qualitative angular position of the sheet leading edge preferably in relation to a reference point or a reference line o. ⁇ ., Or the quantitative angular position of the sheet leading edge.
  • angular position is understood to mean the position of the respective sheet leading edge relative to the stop plane spanned by the leading edge stops.
  • the angular position of the sheet leading edge is preferably considered in a horizontal plane, particularly preferably at the level of the stack surface.
  • the angular position can preferably be expressed in terms of the number of degrees.
  • a differentiated monitoring of two spaced apart points means that a minimal distinction can be made between an overshoot arc, which lies with its entire leading edge over the leading edge stops, and a skewed bow, which lies only partially over the leading edge stops.
  • overshoot arc which lies with its entire leading edge over the leading edge stops
  • a skewed bow which lies only partially over the leading edge stops.
  • the detection unit at least two longitudinally and / or transversely to a sheet transport direction spaced from each other arranged points.
  • the two spaced-apart points are preferably transversely to a sheet transport direction within a characteristic for the sheet-processing machine minimal sheet format.
  • the further detection unit is preferably assigned to a deflection stack of the sheet conveying system assigned to the delivery pile.
  • the further detection unit is arranged to monitor an area after the reversal point of gripper systems of the sheet conveying system.
  • the further detection unit monitored area at an angle of 0 ° to 90 °, more preferably arranged between 60 ° and 80 ° to the horizontal.
  • at least one further point is preferably monitored.
  • the further point is particularly preferably spaced at least 200 mm from the monitored point located in the region of the leading edge stops.
  • the detection unit or the detection units the position and / or presence of a sheet is preferably monitored without contact.
  • the position and / or presence of the sheet is detected in the sheet transport direction after the leading edge stops by the detection unit or the detection units.
  • the detection unit or the detection units can have scanning sensors, for example with sensors / receivers. In a further development, each of the scanning sensors interacts with a cleaning unit.
  • the detection unit or the detection units distinguishes between an overshoot sheet with respect to the leading edge stops and a skewed sheet with respect to the leading edge stops, wherein different machine functions can preferably be initiated or triggered depending on the evaluation.
  • different machine functions can preferably be initiated or triggered depending on the evaluation.
  • a Leedrucken the machine is preferably carried out depending on the sheet material, in particular a printing material, preferably in dependence on the basis weight, so that the necessary security is guaranteed.
  • thin substrates can be partially or completely printed, for example, while thicker substrates such.
  • the concrete tilt of the obliquity bend can also be recorded in terms of the number of degrees. This can be done in particular to a straight line formed by at least two leading edge stops.
  • the straight line is formed by the abutment surfaces of the leading edge stops at the level of the stacking surface or at the upper edge of the leading edge stops facing the gripper carriage. The position of the sheet can be displayed accordingly or corrected by setting suggestions or setting changes.
  • the detection unit can monitor the presence of an arc at defined times, preferably in a defined machine state, in particular at a defined machine angle in at least two points, these points lying in a first variant transversely to the sheet transport direction and in another variant along the sheet transport direction.
  • points can be monitored both transversely and along the sheet transport direction.
  • the detection unit can have a plurality of scanning sensors, in particular for monitoring the at least two points. Particularly preferably, the monitoring of the transverse to the sheet transport direction points by a first detection unit and the subsequent in the sheet transport direction further point is carried out by a further detection unit.
  • the monitoring of the transverse to the sheet transport direction points from the first detection unit via a plurality of scanning sensors and the subsequent point by the further detection unit by means of another Abtastsensors.
  • the scanning sensors may for example comprise sensors / receivers.
  • these points can be in all Variants of at least one detection unit, for example via a camera to be monitored.
  • a further detection unit in a wider range, in particular in a reverse region of the bow conveyor on the delivery stack conveying sheet conveying system allows control of the conveyor system associated gripper systems on entrained bow and thus excludes an accident of the sheet processing machine. Due to the spacing of the further detection unit from the leading edge stops, a safety-relevant overshoot arc can be reliably deduced when the overshoot sheet is detected, with detected pieces of paper also being classified as safety-relevant overshoot sheets.
  • An emergency stop of the machine is preferably carried out in the case of a signal generated by the further detection unit. In this case, the emergency stop is particularly preferably independent of the signal evaluation of the upstream detection unit.
  • the further detection unit increases the security for the printer that no sheet was conveyed back to the machine even in a crooked or overflow sheet detected by the upstream registration unit. Previously required expensive searches for non-existent safety-relevant arc in the boom are reduced or avoided.
  • the at least one detection unit detects in another embodiment, the angular position of the sheet leading edge with respect to the leading edge stops.
  • the angular position of the sheet leading edge of the deposited sheet can be monitored before the leading edge stops, at least partially over the leading edge stops and / or after the leading edge stops.
  • the detection unit may have a camera, in particular a CCD camera, as a sensor. Due to the detection unit, the filing process is influenced and / or appropriate information is obtained if the sheet is found to be defective provided.
  • the angular position can be detected, for example, in terms of the number of degrees or as the distance to a stop in a unit of length, preferably in millimeters.
  • a defined hiding of the gripper carriage during the passage of the detection unit or the detection units takes place via a mechanism and / or a software.
  • the suppression preferably takes place by means of angle values determined on a sprocket main shaft. While a gripper carriage passes through the Ausblend Scheme a generated by the detection unit signal is therefore not evaluated as skew or overshoot.
  • the detection unit or the detection units monitor the sheets completely non-contact.
  • a distinction according to the type of bow used is provided for the purpose of avoiding accidents.
  • z. B. at a basis weight above 150 g / m 2 a first machine function and below this basis weight another machine function can be initiated.
  • a distinction can be made in a printing press according to the type of substrate used, for example cardboard and paper.
  • z. B. at a basis weight greater than 150 g / m 2 therefore, an emergency stop is initiated by the machine control after detected Schiefbogen according to the first variant and at Paper processing, z. B. at a basis weight less than 150 g / m 2 , a blank printing of the machine according to the second variant carried out.
  • the machine is not stopped, but special mechanisms ensure stapelnace position correction of the bow.
  • This can be done by instructions to the printer, by suggesting changes to settings, automatic settings changes or actuator activation.
  • all the sheet storage active or passive influencing actuators come into consideration, such as the movement of the front and / or side edge stops, the fan setting, the setting of individual or all brake elements, etc. or the Stapelhubvorraum.
  • the action of the printer is improved by displaying the skew and / or printer instructions. The printer can thus obtain information to improve the sheet deposition manually or by changing the boom setting.
  • it is provided to select the intended function, in particular the machine function, as a function of the printing material used, the side of the imbalance, the degree of skew and / or other boundary conditions.
  • Fig. 1 is the boom of a sheet-processing machine, in particular a sheet-fed rotary printing machine shown.
  • the machine can be operated in offset mode.
  • a last impression cylinder 1 is shown.
  • a drive sprocket 2 and a Umlenkkettenrad 3 are shown.
  • the sprockets 2 and 3 are each connected to a shaft 4, 5 on which spaced another drive sprocket 2 and a Umlenkkettenrad 3 are arranged.
  • About the sprockets 2, 3 is in each case an endless chain 6, which forms a chain circle, out. Between the two chain circles, the bow 7 holding gripper carriage 8 are arranged at a constant distance from each other.
  • the deflection of the gripper carriage 8 instead of by the Umlenkkettengan 3 also take place by deflection guides.
  • the boom stack 9 is supported by a stacking plate 10, shown.
  • the stacking plate 10 is an unillustrated hoist, which acts by means of lifting chains 11 on the stacking plate 10 assigned.
  • the boom front edge stops 12, a brake unit 13 and trailing edge stops 14 are shown.
  • the front edge stops 12 and the trailing edge stops 14 are spaced apart on a transverse to a sheet transport direction 15 extending axis ( Fig. 3 ).
  • the brake unit 13 can, for example, have a suction roll extending transversely to the sheet transport direction 15 or, as shown in the exemplary embodiment, circumferentially spaced suction belts 16.
  • the brake unit 13 may also include Nachgreifer.
  • a sheet guiding device 17 and for the quality assurance of the sheet 7 processed in the sheet-fed rotary printing press for example a dryer 19 and / or a dusting unit 20 are provided in the delivery.
  • the sheet guide 17 has a gripper carriage 8 facing sheet guide plate 18 which is provided with Blas Kunststoffdüsen and extends over the machine width. Under the sheet guide plate 18 blow boxes are arranged, via which the Blas Kunststoffdüsen be supplied with blowing air, so that between the sheet guide plate 18 and transported by the gripper carriage 8 sheet 7 in particular for perfecting a Tragluftpolster can be formed.
  • drying unit 19 and a sheet 7 dusting unit 20 are provided above the sheet guiding device 17, it also being possible to control heating of the sheet guiding plate 18 in the area of the dryer 19 to integrate a coolant circuit.
  • Fig. 2 is shown on the leading edge stops 12 a gripper carriage 8 with a chain guide 22 in the deflection.
  • a detection unit 24 is positioned on a holder 23.
  • the detection unit 24 here has at least two spaced-apart scanning sensors 25, 26.
  • the scanning sensors 25, 26 are arranged transversely to the sheet transport direction 15 and so that it is possible to detect the presence or absence of the oblique sheet 28 transported to the delivery stack 9 and with the sheet leading edge at least partially over the leading edge stops 12.
  • the scanning of the leading edge stops 12 in the sheet transport direction 15 subsequent area B by the Abtastsensoren 25, 26 takes place at points P by sensor beams S.
  • the sensor beams S intersect the points to be monitored P.
  • the area B extends from that of the stop surfaces 12.1 of the leading edge stops 12th clamped stop plane e in the sheet transport direction 15 to 100 mm, preferably from 1 mm to 50 mm and most preferably from 2 mm to 10 mm.
  • the points P located in this region B are preferably spaced apart from the stop plane e, so that, for example, a movement of the delivery stack 9 during lowering does not generate any error signals.
  • the monitoring is preferably carried out at defined times or at defined machine angles, preferably constantly when no gripper carriage 8 passes the sensor beams S. In the same way, overspill sheets which protrude beyond all sheet edge stops 12 concerning the sheet format are detected.
  • the detection unit 24 can also detect the specific position of the sheets 7 relative to the leading edge stops 12.
  • the Fig. 3 shows a top view of the delivery stack 9 with properly deposited on the leading edge stops 12 sheet 7, which form the delivery stack 9.
  • the leading edge stops 12 are here shown preferably arranged symmetrically to a machine center 38.
  • the detection unit 24 monitors here preferably with the scanning sensor 25 and the scanning sensor 26 in the area B of the leading edge stops 12 a working width transverse to the sheet transport direction 15.
  • the working width is at least the transversely and horizontally to the sheet transport direction 15 extending extension of the machine to be processed minimum sheet format 27th ,
  • the scanning sensors 25, 26 of the detection unit 24 may be designed, for example, as photoelectric sensors or as ultrasonic sensors.
  • the scanning sensors 25, 26 each contain a transmitter / receiver 25.1, 26.1 and in each case a reflector 25.2, 26.2.
  • Transmitter / receiver 25.1, 26.1 are preferably arranged on the one side and the reflectors 25.2, 26.2 on the opposite side of the gripper carriage track. This minimizes the necessary cabling.
  • the reflectors 25.2, 26.2 are shown here arranged between the leading edge stops 12. In alternative embodiments, not shown, the reflectors 25.2, 26.2 also with the Be connected front edge stops 12 or the leading edge stops 12 themselves as reflectors 25.2, 26.2 are used.
  • the detection unit 24 is connected via an evaluation unit to the machine control station and / or the machine control, wherein the evaluation unit can also be integrated in the machine control.
  • the distance of the scanning sensors 25, 26 is preferably selected such that they are just within a characteristic of the sheet-processing machine minimum sheet size 27.
  • the scanning sensors 25, 26 may also have a sensor element on one side of the gripper carriage track and a receiver element cooperating therewith on the other side of the gripper carriage track. At least one of these elements is arranged below the highest point of the leading edge stops 12.
  • the arranged between the chains 6 and constantly circulating with these gripper carriage 8 detect the lying on the printing cylinder 1 sheet 7 at the sheet leading edge and transport them on the sheet guide 17 and the brake unit 13 in the sheet transport direction 15 to the delivery stack 9. Pass through the sheet 7 the range Brake unit 13, they are detected for example by the suction belts 16 and released by the gripper carriage 8. By means of the brake unit 13, the sheet 7 are delayed to a transport speed reduced storage speed and released after reaching this speed, so that the released sheet 7 aligned with the storage speed against the leading edge stops 12 and in alignment with these and at the opposite trailing edge stops 14, the delivery stack 9 are formed.
  • 9 Geradier are provided on the sides of the delivery pile, which align the sheet 7 with respect to the position of their side edges.
  • the holder 23 is associated with a further detection unit 29.
  • This further detection unit 29 has at least one further scanning sensor 30, which is designed as a photoelectric sensor in the exemplary embodiment and contains a transmitter / receiver 30.1 and a reflector 30.2.
  • the further detection unit 29 is arranged in the arm so that approximately the deflection region of the gripper carriage 8 can be detected. By the further detection unit 29, this area is monitored to see whether sheet 7 were entrained by the gripper carriage 8. If this is the case, by means of an evaluation unit cooperating with the further detection unit 29, the generation of an emergency stop signal, which is supplied to the machine control and displayed on the control station. Thus, an accident of the sheet processing machine can be prevented by entrained by the gripper carriage 8 sheet 7.
  • the further detection unit 29 thus also ensures that the over-arch or oblique sheet 28 detected by the detection unit 24, which causes emptying of the machine and / or a correction of the sheet position on the delivery stack 9, actually involves such sheets 7.
  • these error signals must be hidden. This is done here by a half-cycle driven switching flag, which activates angle-dependent arranged initiators.
  • the error signals caused by the gripper carriage 8 can be filtered by software.
  • the Fig. 4 shows a scanning the sensors 25, 26, 30 associated cleaning unit 31 containing in the embodiment, a nozzle unit 32 with a Blas Kunststoffzu arrangement 33.
  • Each nozzle unit 32 is in particular provided with a first outlet opening 32.1 and a second outlet opening 32.2, the blown air jet 34 of the first outlet opening 32.1 on the sensor / receiver 25.1, 26.1, 30.1 and the blown air jet 35 of the second outlet opening 32.2 on the reflector 25.2, 26.2, 30.2 is directed.
  • the Blas Kunststoffzu Entryen 33 is activated and so powder deposits removed.
  • the cleaning unit 31 can be executed as desired or its activation can be coupled to specific work steps, such as, for example, the change of the delivery stack 9.
  • the Fig. 5 shows a development of the cantilever with a detection unit 24 for detecting overshoot and oblique sheet 28 in the leading edge stops 12 in the sheet transport direction 15 downstream area B.
  • the detection unit 24 also has at least two spaced-apart scanning sensors 25, 26, which sensor beams S preferably parallel to formed by the stop surfaces 12.1 of the leading edge stops 12 stop plane e produce.
  • the stop surfaces 12.1 of the leading edge stops 12 are the directed to the delivery stack 9 surfaces where the correctly released and deposited sheets 7 are aligned at the front edge.
  • the stop surfaces 12.1 of the leading edge stops 12 have at least one vertical extension and preferably an extension transverse to the sheet transport direction 15, in particular a horizontal extension, on.
  • Each scanning sensor 25, 26 here preferably has a sensor / receiver 25.1, 26.1 and a reflector 25.2, 26.2.
  • the sensors / receivers 25.1, 26.1 are assigned to a holder 23 within the gripper carriage track in the deflection region of the gripper carriages 8.
  • the holder 23 may be embodied, for example, as a traverse arranged over the machine width with openings for the sensors / receivers 25.1, 26.1.
  • the traverse can be connected independently or with a blow frame. As a holder 23 but also the blow frame itself can be used.
  • the reflectors 25.2, 26.2 are here associated with a receptacle arranged below the gripper carriage track, which is equipped with recesses for the leading edge stops 12 over the machine width.
  • the receptacle is preferably designed here as a cross-member or grid structure arranged over the machine width, wherein the reflectors 25.2, 26.2 can be integrated in the surface of the receptacle.
  • a frame-fixed arranged grid structure 36 is used, which receives more machine elements on its underside.
  • the machine elements are here separating elements, in particular test sheet finger 37, which are for retracting test sheet in the direction of the delivery stack 9 between falling sheet 7 for receiving this retractable.
  • the test sheet fingers 37 are designed here as pneumatic cylinders.
  • the connected reflectors 25.2, 26.2 remain stationary and active even during a test sheet removal.
  • the leading edge stops 12 can be made pivotable for sample sheet removal. Accordingly, a monitoring of the filing process can also take place uninterruptedly during a test sheet extraction. Also a stack change, especially a non-stop stack change, can be monitored without interruption by the detection unit 24.
  • the cantilever further comprises a further detection unit 29 arranged downstream of the detection unit 24 in the sheet transport direction 15 for the detection of machine-damaging overshoot sheets.
  • the further detection unit 29 disposed downstream in the direction of the rotating gripper carriage 8 of the detection unit 24 likewise has a further scanning sensor 30 with a sensor / receiver 30.1 and a reflector 30.2.
  • the sensor / receiver 30.1 of the further detection unit 29 is accommodated in an opening of the holder 23 formed, for example, as a traverse.
  • At least one, but preferably all, of the sensors / receivers 25.1, 26.1, 30.1 and reflectors 25.2, 26.2, 30.2 is here also assigned a cleaning unit 31.
  • the Fig. 6 shows a plan view of the grid structure 36 with integrated reflectors 25.2, 26.2 in the boom.
  • the lattice structure 36 here preferably has slots arranged in the direction of the sheet transport 15, which allow air circulation in the delivery arm.
  • the reflectors 25.2, 26.2 are integrated here in the chain guides 22 of the gripper carriage 8 facing surface of the grid structure 36.
  • the distance of the reflectors 25.2, 26.2 to each other here corresponds to the minimum of the machine to be processed sheet material so the minimum sheet size 27.
  • the reflectors 25.2, 26.2 are arranged so far apart that the smallest to be processed sheet size across the machine width still one the reflectors 25.2, 26.2 in the case of a crook 28 and both reflectors 25.2, 26.2 covered in the event of an overshoot.
  • the Fig. 7 shows a perspective view of the boom with integrated in the grid structure 36 reflectors 25.2, 26.2.
  • the sensors / receivers 25.1, 26.1 cooperating with the reflectors 25.2, 26.2 are arranged above and particularly preferably vertically above the reflectors 25.2, 26.2 within the deflection region of the gripper carriages 8.
  • the sensor / receiver 30.1 of the further detection unit 29 cooperates with a reflector 30.2, not shown, which is preferably arranged in the direction of rotation of the gripper carriage 8 after the turning point outside the chain guides 22 approximately in the middle of the machine width.
  • the Fig. 8 shows a preferred embodiment of the boom with in the example designed as Traverse holder 23 integrated cleaning unit 31 for all scanning sensors 25, 26, 30 of the detection units 24, 29 seen in the sheet transport direction 15.
  • the cleaning unit 31 includes an actuatable blast air supply 33 which supplies the blast air to the nozzle unit 32 associated with each scanning sensor 25, 26, 30.
  • the pneumatic pressure available to the cleaning unit 31 is preferably manually or automatically adjustable and is particularly preferably monitored.
  • the Blas Kunststoffzu operation 33 cooperates with a side of the example designed as Traverse holder 23 associated connection and distributes the applied blowing air here exemplified two distributors to the nozzle units 32 of the Abtastsensoren 25, 26, 30.
  • Each nozzle unit 32 directs the applied blowing air here also preferred to the sensors / receivers 25.1, 26.1, 30.1 and the reflectors 25.2, 26.2, 30.2 as already described above.
  • the Fig. 9 shows a section of the top view of the delivery stack 9 with within a transversely to the sheet transport direction 15 extending minimum working width, ie within a characteristic for the sheet processing machine minimal sheet size 27, arranged front edge stops 12.
  • the properly filed sheets 7 lie in the sheet transport direction 15 at the stop surfaces 12.1 of the leading edge stops 12 from.
  • the points P monitored by the scanning sensors 25, 26 of the detection unit 24 lie in the sheet transport direction 15 of the stop plane e downstream in a region B and transversely to the sheet transport direction 15 within the minimum sheet format 27 extended beyond the stop plane e in the sheet transport direction 15.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Controlling Sheets Or Webs (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Pile Receivers (AREA)

Claims (15)

  1. Elément de sortie d'une machine de traitement de feuilles comportant un système de transport de feuilles transportant des feuilles (7) vers une pile de sortie (9) et par un bord avant des feuilles (7) au niveau d'au moins deux butées de bord avant (12),
    dans lequel au moins une unité de détection (24, 29) surveillant sans contact la position des feuilles (7) est prévue et
    dans lequel ladite au moins une unité de détection (24, 29) est conçue pour surveiller au moins un point (P),
    caractérisé
    en ce que ledit au moins un point (P) surveillé est situé en aval d'un plan de butée (e) sous-tendu par lesdites au moins deux butées de bord avant (12) dans le sens de transport des feuilles (15),
    et
    en ce que ledit au moins un point (P) surveillé se situe à l'intérieur d'une zone (B) qui s'étend du plan de butée (e) jusqu'à 100 mm dans le sens de transport des feuilles (15).
  2. Elément de sortie selon la revendication 1, caractérisé en ce que ledit au moins un point (P) surveillé est espacé du plan de butée (e).
  3. Elément de sortie selon au moins l'une des revendications précédentes, caractérisé en ce que ladite au moins une unité de détection (24, 29) est conçue pour surveiller au moins deux points (P), lesquels se situent transversalement au sens de transport des feuilles (15) à distance l'un de l'autre.
  4. Elément de sortie selon au moins l'une des revendications précédentes, caractérisé en ce que ledit au moins un point (P) surveillé ou lesdits au moins deux points (P) surveillés se situent à l'intérieur d'une largeur de travail (27) minimale s'étendant transversalement au sens de transport des feuilles (15), en particulier à l'intérieur d'un format de feuille (27) minimal à traiter au moyen de l'élément de sortie.
  5. Elément de sortie selon au moins l'une des revendications précédentes, caractérisé en ce que ladite au moins une unité de détection (24, 29) est conçue pour surveiller au moins deux points (P), lesquels se situent à distance l'un de l'autre et l'un derrière l'autre dans le sens de transport des feuilles (15).
  6. Elément de sortie selon la revendication 3, 4 ou 5, caractérisé en ce que lesdits au moins deux points (P) surveillés peuvent être évalués et/ou sont évalués indépendamment l'un de l'autre et/ou peuvent être évalués et/ou sont évalués d'une manière différenciée l'un par rapport à l'autre.
  7. Elément de sortie selon au moins l'une des revendications précédentes, caractérisé en ce que ladite au moins une unité de détection (24, 29) est agencée de manière à produire un faisceau de capteur (S) utilisé pour surveiller ledit au moins un point (P).
  8. Elément de sortie selon au moins l'une des revendications précédentes, caractérisé en ce que ladite au mins une unité de détection (24, 29) comprend au moins deux éléments délimitant un faisceau de capteur (S).
  9. Elément de sortie selon la revendication 8, caractérisé en ce qu'au moins un élément est agencé au-dessus d'une voie de chariot de prélèvement et au moins un élément est agencé au-dessous de la voie de chariot de prélèvement et/ou au moins un élément est agencé au-dessous du point le plus haut desdites au moins deux butées de bord avant (12).
  10. Elément de sortie selon au moins l'une des revendications précédentes, caractérisé en ce que ladite au moins une unité de détection (24, 29) comprend un capteur/récepteur (25.1, 26.1, 30.1) et un réflecteur (25.2, 26.2, 30.2) et en ce que le réflecteur (25.2, 26.2) est agencé au moins en partie entre lesdites au moins deux butées de bord avant (12).
  11. Procédé de fonctionnement d'une machine de traitement de feuilles comportant un système de transport de feuilles transportant des feuilles (7) vers une pile de sortie (9) et par un bord avant des feuilles (7) au niveau d'au moins deux butées de bord avant (12),
    dans lequel au moins une unité de détection (24, 29) surveillant sans contact la position des feuilles (7) est prévue et
    dans lequel au moins un point (P) est surveillé au moyen de ladite au moins une unité de détection (24, 29),
    caractérisé
    en ce que ledit au moins un point (P) surveillé est situé en aval d'un plan de butée (e) sous-tendu par lesdites au moins deux butées de bord avant (12) dans le sens de transport des feuilles (15),
    et
    en ce que ledit au moins un point (P) surveillé se situe à l'intérieur d'une zone (B) qui s'étend du plan de butée (e) jusqu'à 100 mm dans le sens de transport des feuilles (15).
  12. Procédé selon la revendication 11, caractérisé en ce que ladite au moins une unité de détection (24, 29) permet de surveiller au moins deux points (P), lesquels se situent à distance l'un de l'autre transversalement au sens de transport des feuilles (15) et/ou l'un derrière l'autre dans le sens de transport des feuilles (15).
  13. Procédé selon au moins l'une des revendications 11 à 12, caractérisé en ce que différentes fonctions de machine sont initiées en fonction du type de feuille, en particulier de la nature du matériau à imprimer, et/ou en fonction d'une feuille de travers (28) détectée ou d'une feuille en dépassement.
  14. Procédé selon la revendication 12, caractérisé en ce que, lorsqu'une feuille en dépassement est détectée au niveau du point (P) situé en aval dans le sens de transport des feuilles (15), un arrêt d'urgence est initié.
  15. Procédé selon au moins l'une des revendications 11 à 14, caractérisé en ce que la surveillance dudit au moins un point (P) est également réalisée pendant un prélèvement de feuille échantillon et/ou d'un changement de pile et/ou en ce qu'une surveillance permanente dudit au moins un point (P) est réalisée, dans lequel seuls les chariots de préhension (8) en train de passer sont masqués.
EP14806645.9A 2013-12-04 2014-12-04 Dispositif de sortie d'une machine de traitement de feuilles et procédé pour faire fonctionner une machine de traitement de feuilles Active EP3077307B1 (fr)

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DE102013224801 2013-12-04
DE102013224802 2013-12-04
PCT/EP2014/076586 WO2015082622A2 (fr) 2013-12-04 2014-12-04 Élément de sortie d'une machine de traitement de feuilles et procédé pour faire fonctionner une machine de traitement de feuilles

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DE102015210557B4 (de) * 2015-06-09 2018-05-30 Koenig & Bauer Ag Auslage für eine bogenverarbeitende Maschine und Verfahren zur Ablage von Bogen
WO2017001398A2 (fr) 2015-06-29 2017-01-05 Koenig & Bauer Ag Dispositifs de sortie de feuilles, procédé de transport de feuilles, procédé de fonctionnement d'un dispositif de sortie de feuilles et procédé de commande d'une remise de feuilles d'étoffe imprimée
DE102016211623A1 (de) 2015-06-29 2016-12-29 Koenig & Bauer Ag Auslageeinrichtung und Verfahren zum Betreiben einer Auslageeinrichtung
DE102016209116A1 (de) * 2016-05-25 2017-11-30 Koenig & Bauer Ag Bogenleitvorrichtung für eine bogenverarbeitende Maschine sowie Verfahren zum Betrieb einer Auslagevorrichtung
CN107848724B (zh) 2015-06-29 2019-03-22 柯尼格及包尔公开股份有限公司 用于运行输出装置的方法和用于加工单张纸的机器的输出装置
US10150644B2 (en) 2015-06-29 2018-12-11 Koenig & Bauer Ag Delivery systems and methods for setting the delivery systems
DE102015218138B4 (de) * 2015-09-22 2019-02-14 Koenig & Bauer Ag Auslageeinrichtung
DE102016221530A1 (de) * 2016-11-03 2018-05-03 Koenig & Bauer Ag Laminierungsmaschine und ein Verfahren zum Laminieren von Bogen eines Materials
CN111225797B (zh) * 2017-10-13 2022-10-04 柯尼格及包尔公开股份有限公司 加工单张纸的机器和将单张纸传送给单张纸给送系统的方法
EP3694717B1 (fr) * 2017-10-13 2021-12-01 Koenig & Bauer AG Machine de traitement de feuilles dotée d'un dispositif de transport de feuilles et procédé de transport de feuilles d'un cylindre de guidage de feuilles vers un système de transport de feuilles
DE102017219283A1 (de) * 2017-10-26 2019-05-02 Koenig & Bauer Ag Auslage und Verfahren zum Verstellen einer Bremsstation einer Bogenbremse in einer Auslage
DE102017219279A1 (de) * 2017-10-26 2019-05-02 Koenig & Bauer Ag Bogenbremse und Verfahren zum Verstellen einer Bremsstation einer Bogenbremse in einer Auslage einer bogenverarbeitenden Maschine
DE102017219280A1 (de) * 2017-10-26 2019-05-02 Koenig & Bauer Ag Auslage und Verfahren zum Verstellen einer Bremsstation einer Bogenbremse in einer Auslage
DE102019110853B4 (de) * 2019-04-26 2022-05-12 Koenig & Bauer Ag Bogenbearbeitungsmaschine und Verfahren zur Inspektion zumindest eines verbliebenen und von einer Formgebungseinrichtung bearbeiteten Teils zumindest eines Bogens
DE102020119565B4 (de) * 2020-07-24 2022-04-28 Koenig & Bauer Ag Verfahren und Vorrichtung zur Überwachung eines in einen Sicherheitsbereich eines Rollenab- oder -aufwicklers führenden Zuganges sowie Rollendruckmaschine
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DE102014224895A1 (de) 2015-06-11
CN105793179B (zh) 2017-07-14
CN105793179A (zh) 2016-07-20
WO2015082622A3 (fr) 2015-08-20
EP3077307A2 (fr) 2016-10-12

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