EP0513482B1 - Inspection des marques latérales et des chevauchements dans une press rotative pour feuilles - Google Patents

Inspection des marques latérales et des chevauchements dans une press rotative pour feuilles Download PDF

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Publication number
EP0513482B1
EP0513482B1 EP92103231A EP92103231A EP0513482B1 EP 0513482 B1 EP0513482 B1 EP 0513482B1 EP 92103231 A EP92103231 A EP 92103231A EP 92103231 A EP92103231 A EP 92103231A EP 0513482 B1 EP0513482 B1 EP 0513482B1
Authority
EP
European Patent Office
Prior art keywords
sheet
lateral
sensor
sensor arrangement
stop
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.)
Expired - Lifetime
Application number
EP92103231A
Other languages
German (de)
English (en)
Other versions
EP0513482A1 (fr
Inventor
Claus Simeth
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Manroland AG
Original Assignee
MAN Roland Druckmaschinen AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Publication of EP0513482A1 publication Critical patent/EP0513482A1/fr
Application granted granted Critical
Publication of EP0513482B1 publication Critical patent/EP0513482B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F33/00—Indicating, counting, warning, control or safety devices
    • B41F33/04—Tripping devices or stop-motions
    • B41F33/14—Automatic control of tripping devices by feelers, photoelectric devices, pneumatic devices, or other detectors
    • 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
    • B65H7/10—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 incorrect side register
    • 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
    • B65H7/14—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 by photoelectric feelers or detectors
    • 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
    • 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
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/50—Occurence
    • B65H2511/51—Presence
    • B65H2511/514—Particular portion of element
    • 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
    • B65H2515/00—Physical entities not provided for in groups B65H2511/00 or B65H2513/00
    • B65H2515/60—Optical characteristics, e.g. colour, light
    • 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
    • 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
    • B65H2701/13—Parts concerned of the handled material
    • B65H2701/131—Edges
    • B65H2701/1311—Edges leading edge
    • 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
    • B65H2701/13—Parts concerned of the handled material
    • B65H2701/131—Edges
    • B65H2701/1315—Edges side edges, i.e. regarded in context of transport

Definitions

  • the invention relates to a side mark and overdrawing control of a rotary sheet-fed printing machine with a lateral stop for the lateral alignment of sheets conveyed on a system table of the machine, with which stop a cross-conveyor which can be actuated in a controlled manner and which conveys the incoming sheets against the lateral stop, also with one the side stop arrangement assigned to the side stop, which determines whether a sheet is present (side mark control) or whether a sheet undermines the side stop (pull-over control), furthermore with front stops for aligning the front edges of the sheets and with a front stop assigned to the front stops Sensor arrangement that determines whether there is a sheet in the area of the front stops and with a controller that processes the output signals of the sensor arrangement.
  • a conventional side mark and pull-over control of this type has a first sensor which is arranged on the outside of the stop. If it detects a sheet, the control is actuated in the sense of a corresponding correction, preferably the drive is stopped, because otherwise waste would be produced.
  • the well-known side mark and overturn control has another sensor on the inside of the stop. If the sensor detects an arc, the cross conveyor is actuated, which conveys the arc to the side stop. Both sensors usually work on the principle of optical reflections. This means that an arc passing under the sensors reflects the light striking it and this is a signal for the presence of the bow.
  • the known side mark control described has the particular disadvantage that the sensor actuates the cross conveyor even when the sheet in question is too close to the lateral stop, so that a transverse position of the sheet can no longer be corrected by the cross conveyor.
  • the sheet is then deformed (compression), in particular because the cross conveyor exerts a force on the sheet without it being able to move noticeably laterally.
  • the invention avoids these disadvantages. It is based on the task of proposing a side brand and overdrawing control with the features mentioned at the outset, which is to be distinguished by a simple structure and with which both controls and in particular the side brand control can be carried out very effectively, with practically no waste.
  • the invention is characterized in that the lateral sensor arrangement has a sensor which is arranged at a measuring distance from the lateral stop which is smaller than a minimum distance which is determined from the drawing path of the sheet to the lateral stop and from the lateral stop is measured towards the center of the system table, and that the control operates the cross conveyor when the front sensor arrangement detects an arc and the lateral sensor arrangement detects no arc (side mark control).
  • the essence of the invention is therefore that the already existing sensor arrangement of the front marks, which in the prior art is not connected to the lateral sensor arrangement in terms of control, is used according to the invention to determine whether a sheet is present or not. If a sheet is in contact with the front marks - and is determined by the front sensor arrangement assigned to the front marks - this sheet is also for the side mark control because the side mark control is only slightly spaced in front of the front marks in the conveying direction of the sheets.
  • the sensor arrangement of the side mark control according to the invention cannot be used, as in the prior art, to determine whether a sheet is present - this is done by the sensor arrangement assigned to the front marks - but the lateral sensor arrangement determines whether the sheet in question is within the range defined above There is a minimum clearance. If the sheet is at a minimum distance, there is a risk that the necessary drawing path is no longer available and the sensor then sends a corresponding correction signal to the control, which eliminates this condition. For example, the conveying of the sheets is stopped or the stacking table with the supply of the sheets to be conveyed is moved laterally in such a way that the subsequent sheets come with certainty outside the minimum distance to the side mark inspection.
  • sensors are generally used which work on the optical reflection principle. This is also preferred in the present invention, although infrared sensors and the like can also be used. It is essential to this extent that the sensor emits a beam (light beam) which is more or less covered by the arc when an arc is present. The light reflected from the arc is then measured. Alternatively, the transmitted light can also be measured.
  • a beam light beam
  • control detects a coated sheet, this covers a much larger proportion of the light beam than in the case of the side mark control, in which case the sheet will only cover a much smaller part of the light beam, namely that part of the light beam which is towards the center of the system table points.
  • a further important embodiment of the invention is characterized in that the sensor of the side sensor arrangement generates a signal which extends in the conveying direction of the cross conveyor and which is weighted and evaluated according to its intensity, with an output signal component of high intensity in the control as a pull-over control is evaluated and an output signal portion of low intensity as a side mark control.
  • the sensor of the side sensor arrangement generates a signal which extends in the conveying direction of the cross conveyor and which is weighted and evaluated according to its intensity, with an output signal component of high intensity in the control as a pull-over control is evaluated and an output signal portion of low intensity as a side mark control.
  • a plant table 1 is indicated, on which sheets are transported one after the other in the direction of arrow 2.
  • the sheets come from an investment machine. At the end of the feed table, they are aligned with their front edges and left side edges and then fed to the first inking unit of the sheet-fed printing press.
  • the sheets can of course also be aligned on their right side edges.
  • Fig. 1 one of the sheets 3 is almost on front marks (front stops) 4, which are attached to a register bar 5. Sensors 6 work together with the front marks and give a signal to the control of the machine as soon as they detect an arc.
  • a side mark 7 (lateral stop) is provided, on which a guide plate 8 is also attached. See also FIG. 2. This shows one of the arches 3 in contact with the inner contact surface 9 of the stop 7, while in FIG. 1 the arch is at a certain distance from the contact surface.
  • the assembly 7.8 is usually adjustable laterally and in height.
  • a cross conveyor 10 is also indicated, which, when actuated by the controller, transversely, i.e. in the direction of arrow 11, against the stop 7 promotes.
  • a minimum distance 13 is defined between the contact surface 9 and an imaginary line 12.
  • the incoming sheets should lie outside this minimum distance so that the cross conveyor 10 can possibly pull sheets that are not oriented at right angles via the pull path defined by the distance 13 to the stop and via this pull path the sheet can actually straighten without upsetting the bends.
  • a single sensor 14 is arranged within the minimum distance 13.
  • the device works as follows. If a sheet arriving in the position shown in FIG. 1 is detected by the sensors 6 of the front marks, this state is assessed as correct and the control activates the cross conveyor 10 so that the sheet in question is pulled against the contact surface 9 of the stop 7.
  • the sensor 14 has not detected a sheet prior to the activation of the cross conveyor and the activation of the cross conveyor 10 assumes this state, i.e. that the sensors 6 detect an arc and the sensor 14 detects no arc.
  • the sheet is then laterally aligned at the stop 7. It can then be removed.
  • a sheet is conveyed whose left edge does not run outside the distance 13, as shown in FIG. 1, but within the distance, this sheet is sensed by the sensor 14.
  • the control system therefore receives notification via sensors 6 and sensor 14 that a sheet is present, specifically within the minimum distance 13. This is information that a malfunction has occurred, which the machine control system then removes in a suitable manner, for example by stopping the Conveying along the system table and / or by laterally shifting the upstream stack of sheets in the opposite direction of the arrow 11 until the position of the sheets which has been recognized as correct and is shown in FIG. 1 is reached.
  • This so-called pull-over control can also be carried out by a further sensor 15, for which it is important that it is arranged in the region of the stop 7, i.e. to the right of it, as drawn in FIG. 1, to the left of it or at its height and then preferably in the conveying direction (arrow 2) in front of the stop 7.
  • FIG. 3 and 4 explain the signal evaluation with the single sensor 14.
  • an arc 3b is shown in FIG. 3, the left edge of which slightly covers the light cone of the sensor 14. This coverage area is indicated at item 16. If the sensor arrangement works on the principle of reflected light, only the relatively small area 16 reflects the light back into the sensor and this results in a relatively small signal 17, which is shown in FIG. 4.
  • the output signal of the sensor 14 is plotted as a current or voltage.
  • a discriminator circuit can now differentiate the signal level, as indicated by level 19 in FIG. 4.
  • the cross conveyor must not be activated (side mark control). If, on the other hand, the control detects a larger signal 18 above level 19, there is an overdrawing.
  • FIG. 4 also shows the chronological sequence of the query. From the lower part of Fig. 4 it follows that the smaller signal 17 is generated by the sheet 3b and the larger signal 18 by the sheet 3a. (See also Fig. 3.)
  • the invention therefore only requires a change in the software of the control and only a single sensor 14 is required. Despite this simplification, the control works much more reliably and there is noticeably less waste.

Landscapes

  • Controlling Sheets Or Webs (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Registering Or Overturning Sheets (AREA)

Claims (3)

  1. Contrôle des repères latéraux et de recouvrement d'une machine d'impression rotative à feuilles, comportant une butée latérale (7) pour l'alignement latéral de feuilles (3,3a,3b) transportées sur une table de marge (1) de la machine, avec laquelle butée (7) coopère un transporteur transversal (10) actionnable de façon commandée, qui transporte les feuilles (3,3a,3b) qui arrivent contre la butée latérale (7), comportant de plus un agencement de capteur (14,15) latéral, associé à la butée latérale (7), qui détermine si une feuille (3,3a,3b) est présente (contrôle des repères latéraux), ou si une feuille (3,3a,3b) dépasse la butée latérale (7) (contrôle de recouvrement), comportant de plus des butées avant (4) pour l'alignement des bords avant des feuilles (3,3a,3b), ainsi qu'un agencement de capteur avant (6), associé aux butées avant (4), qui détermine si une feuille (3,3a,3b) est présente dans la zone des butées avant (4), et une commande qui traite les signaux de sortie de l'agencement de capteur (6,14,15),
    caractérisé en ce que l'agencement de capteur latéral présente un capteur (14) qui est agencé à une distance de mesure (13) de la butée latérale (7), qui est plus petite qu'une distance minimale qui est déterminée par la course de traction de la feuille vers la butée latérale et qui est mesurée de la butée latérale vers le centre de la table de marge, et en ce que la commande actionne le transporteur transversal (10) lorsque l'agencement de capteur avant (6) détecte une feuille (3,3a,3b) et lorsque l'agencement de capteur latéral (14,15) ne détecte aucune feuille (contrôle des repères latéraux).
  2. Contrôle de repères latéraux et de recouvrement selon la revendication 1,
    caractérisé en ce que l'agencement de capteur latéral présente le capteur (14) comme capteur unique.
  3. Contrôle des repères latéraux et de recouvrement selon la revendication 2,
    caractérisé en ce que le capteur (14) de l'agencement de capteur latéral engendre un signal de préférence optique qui s'étend dans la direction de transport du transporteur transversal et qui est pondéré et exploité selon son intensité, une portion du signal de sortie (18) d'intensité élevée étant exploitée dans la commande comme contrôle de recouvrement et une portion du signal de sortie (17) de faible intensité comme contrôle des repères latéraux.
EP92103231A 1991-05-18 1992-02-26 Inspection des marques latérales et des chevauchements dans une press rotative pour feuilles Expired - Lifetime EP0513482B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4116409 1991-05-18
DE4116409A DE4116409C2 (de) 1991-05-18 1991-05-18 Seitenmarken- und Überziehkontrolle einer Rotations-Bogendruckmaschine

Publications (2)

Publication Number Publication Date
EP0513482A1 EP0513482A1 (fr) 1992-11-19
EP0513482B1 true EP0513482B1 (fr) 1994-12-07

Family

ID=6432016

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92103231A Expired - Lifetime EP0513482B1 (fr) 1991-05-18 1992-02-26 Inspection des marques latérales et des chevauchements dans une press rotative pour feuilles

Country Status (5)

Country Link
US (1) US5267728A (fr)
EP (1) EP0513482B1 (fr)
JP (1) JP2642560B2 (fr)
AT (1) ATE115049T1 (fr)
DE (2) DE4116409C2 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4221578A1 (de) * 1992-07-01 1994-01-05 Heidelberger Druckmasch Ag Vorrichtung und Verfahren zur Bogenerfassung
DE4430296C2 (de) * 1994-08-26 1997-12-11 Roland Man Druckmasch Vorrichtung zum seitlichen Ausrichten von Bogen
DE19501798A1 (de) * 1995-01-21 1996-07-25 Heidelberger Druckmasch Ag Verfahren und Vorrichtung zum Ausrichten eines Bogens auf dem Anlegetisch einer Bogenrotationsdruckmaschine
DE19822307B4 (de) * 1997-07-12 2008-12-24 Heidelberger Druckmaschinen Ag Verfahren zum paßgerechten Ausrichten von Bogen
DE19910688A1 (de) * 1999-03-10 2000-09-14 Heidelberger Druckmasch Ag Vorrichtung zum seitlichen Ausrichten von Bogen
DE10102227A1 (de) * 2000-02-22 2001-08-23 Heidelberger Druckmasch Ag Verfahren und Vorrichtung zur Ausrichtung von Bogen
DE10129744A1 (de) * 2001-06-20 2003-01-09 Koenig & Bauer Ag Verfahren und Vorrichtungen zur Ausrichtung eines Bogens
ES2407029B1 (es) * 2010-12-31 2014-05-09 Ibérica A.G., S.A. Dispositivo de posicionamiento lateral de una hoja mediante marca impresa en la estación de alimentación de una máquina troqueladora, y procedimiento de posicionamiento lateral de una hoja mediante dicho dispositivo de posicionamiento.
CN114260203A (zh) * 2021-12-07 2022-04-01 贵州建隆新能源汽车有限责任公司 一种用于新能源车车身制作的型材处理装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE617108C (de) * 1932-06-28 1935-08-12 Faber & Schleicher Akt Ges Vorrichtung zum Ausrichten
CH466334A (de) * 1967-03-02 1968-12-15 Johannisberg Gmbh Maschf Bogenkontrolleinrichtung für bogenverarbeitende Druckmaschinen
DE2046602B2 (de) * 1970-09-22 1973-09-06 Koenig & Bauer AG, ,700 Würzburg Bogenzufuehrung bei druckmaschinen
DE3301722C2 (de) * 1983-01-20 1985-03-07 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Verfahren und Vorrichtung zur paßgerechten Zuführung von Bogen an bogenverarbeitenden Maschinen
JPS6228056A (ja) * 1985-07-30 1987-02-06 Nippon Steel Corp 連続鋳造方法
JPS6481740A (en) * 1987-09-21 1989-03-28 Akyama Insatsuki Seizo Kk Automatic correcting device for paper position in paper sheet printing machine
NL8901034A (nl) * 1989-04-25 1990-11-16 Oce Nederland Bv Inrichting voor het transporteren en positioneren van vellen.

Also Published As

Publication number Publication date
ATE115049T1 (de) 1994-12-15
DE4116409C2 (de) 1995-01-05
DE59200892D1 (de) 1995-01-19
JPH05200990A (ja) 1993-08-10
JP2642560B2 (ja) 1997-08-20
DE4116409A1 (de) 1992-11-19
US5267728A (en) 1993-12-07
EP0513482A1 (fr) 1992-11-19

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