EP0897884B1 - Commande de levage pour un dispositif automatique de changement de pile - Google Patents

Commande de levage pour un dispositif automatique de changement de pile Download PDF

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Publication number
EP0897884B1
EP0897884B1 EP98113067A EP98113067A EP0897884B1 EP 0897884 B1 EP0897884 B1 EP 0897884B1 EP 98113067 A EP98113067 A EP 98113067A EP 98113067 A EP98113067 A EP 98113067A EP 0897884 B1 EP0897884 B1 EP 0897884B1
Authority
EP
European Patent Office
Prior art keywords
drive
stack
pile
auxiliary
control
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
EP98113067A
Other languages
German (de)
English (en)
Other versions
EP0897884A1 (fr
Inventor
Hartmut Leichnitz
Michael Dotzert
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 EP0897884A1 publication Critical patent/EP0897884A1/fr
Application granted granted Critical
Publication of EP0897884B1 publication Critical patent/EP0897884B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B65H1/00—Supports or magazines for piles from which articles are to be separated
    • B65H1/30—Supports or magazines for piles from which articles are to be separated with means for replenishing the pile during continuous separation of articles therefrom
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H1/00—Supports or magazines for piles from which articles are to be separated
    • B65H1/08—Supports or magazines for piles from which articles are to be separated with means for advancing the articles to present the articles to the separating device
    • B65H1/14—Supports or magazines for piles from which articles are to be separated with means for advancing the articles to present the articles to the separating device comprising positively-acting mechanical devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2403/00—Power transmission; Driving means
    • 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
    • B65H2513/10—Speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2557/00—Means for control not provided for in groups B65H2551/00 - B65H2555/00
    • B65H2557/30—Control systems architecture or components, e.g. electronic or pneumatic modules; Details thereof
    • B65H2557/31—Control systems architecture or components, e.g. electronic or pneumatic modules; Details thereof for converting, e.g. A/D converters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2801/00—Application field
    • B65H2801/03—Image reproduction devices
    • B65H2801/21—Industrial-size printers, e.g. rotary printing press

Definitions

  • the invention relates to a lifting drive for an automatic stack changing device according to the preamble of claim 1.
  • the sheets to be printed are printed by the Top of a stack of feeders taken to a system via a conveyor table transported.
  • substrate thicknesses of up to processed on the order of 1 mm and also with a high printing speed conveyed by the machine are the Stack in the feeder of the machine processed relatively quickly.
  • To the production pressure To be able to continue without interruption, it is necessary to place a new stack on the To provide stack support plate, i.e. this new stack exactly in the same Position below the remaining stack (previously processed stack) and then combine the remaining stack with the new main stack.
  • Both the investor's stack support plate receiving the main stack and the auxiliary stack support device arranged upstream of the feeder each have a lifting device with their own drive.
  • a stack height scanner in the feeder Form a suitable sensor arranged, the corresponding signals can be removed and can be fed to a controller assigned to the respective drive are.
  • a working point can be selected through the control upstream of the drives. i.e. the switch-on frequency and the switch-on lengths depend on Work cycle of the machine and the substrate thickness selected. With large substrates as well as a high work cycle of the machine (high printing speed) accordingly, the drives for the main stack and the auxiliary stack support device accordingly more often and also for a longer period of time switched on.
  • the auxiliary stack support device Due to the interaction of an auxiliary stack support device with the feeder or the main stack located on the pallet of the stack support plate necessary, the auxiliary stack support device with the horizontal one and inside extendable support rods synchronized with the stack support plate for longer periods or the top of the pallet receiving the main stack.
  • This synchronism of the lifting movements of the auxiliary stack support device or the rods with the pallet is particularly necessary to the rods in suitable moment between the top of the pallet and the bottom of the Retract the main stack and then the auxiliary stack support device synchronously to move up to the time point until the main stack is on a designated Level is processed and the stacking support plate with the pallet for loading a new main stack is lowered.
  • the drives of the lifting device for the stack support plate (main stack) and the Auxiliary stacking devices are in accordance with those to be lifted and lowered Loads are designed differently, both electrically and mechanically. To the required synchronism with regard to the lifting movements between the auxiliary stack support device and to achieve the pallet on the stack support plate technically complex precautions must therefore be taken. Because through the Lifting devices of the auxiliary stack support device or the stack support plate of the Main stack but different loads have to be moved are in particular the mechanical components of this lifting device differ. This is true both for the corresponding traction means and for those between the electrical ones Drives and gearboxes arranged to.
  • auxiliary stack support device for a given movement of the main stack (the stack support plate of the main stack) it is possible to Drive of the auxiliary pile support device of the movement of the drive of the feeder (Stack support plate), i.e. by appropriate sensory means to detect this movement and corresponding control commands for driving the Generate auxiliary pile carrier.
  • Another option is while the synchronous process the drive of the auxiliary stack support device via suitable Control algorithms controlled by the sensor of the stack height scanning. To do this, however, it is necessary to add an additional stack height sensor Way with regard to the conditions of the drive of the auxiliary stack support device evaluate and generate appropriate control commands. This can only be done take place when the drive of the auxiliary stack support device an additional control with evaluation of the sensor signals or if the sensor signals evaluating control with appropriate computing capacity is.
  • DE 44 18 810 C1 and DE 195 16 582 are devices with main and Auxiliary stack carrier known, with both the main and the auxiliary stack carrier over assigned drives can be moved. This is done via a stack height scan Detect the height of the top sheet on the stack so that over a assigned control main and auxiliary stacks can be combined.
  • the lifting devices of the stack support plate of the main stack or the auxiliary stack support device-associated drive controls are parameterized such that both the stack support plate of the main stack as well as the auxiliary stack support device with the same long switch-on times are moved by the same strokes.
  • the invention is the electric drive control for the Lift drive of the auxiliary stack carrier parameterized in such a way that by the corresponding Drive in all operating points with the same switch-on time as for the Drive the main stack the auxiliary stack support the same stroke (path) travels.
  • the synchronization provided according to the invention by means of appropriate parameter selection has not only the advantage that both the drive for the Main stack as well as that for the auxiliary stack support device of one each long switching signal generating control can be operated, but that it is also possible that the switching signals at different times feed the respective drive. So the drives in the other operating modes one controller in a completely independent manner relative to each other be moved.
  • the operating situations are addressed here, if the auxiliary stack support device for moving to a predetermined position with a higher one Speed down or up and the stack support plate of the Main stack according to the signals of the stack height sensor, the clock of Following machine is moved.
  • the advantage of the invention can be seen in particular in that by only one the control of the signals of the stack height sensing (sensor) detecting both the Drive of the main stack as well as that of the auxiliary stack support device with corresponding Switching signals can be supplied.
  • main and auxiliary stack synchronous processes are made by the control for the same length of time but not necessary
  • simultaneous switch-on signals are provided, with the Corresponding parameterization of the electrical drive control of the auxiliary stack support device the same lifting distances covered by the auxiliary stack support device become as from the main stack (stack support plate).
  • the independent process the stack support plate of the main stack and the auxiliary stack support device takes place in simply by the fact that the control signals for the respective drives can be specified to be of different lengths or one or both Drives are operated with continuous switch-on signals.
  • Fig. 1 shows a sheet-fed offset printing press 1 (first printing unit), which has a Conveying table sheets are fed from a feeder 2.
  • a stack support plate 6 on a pallet 5 a stack 4, of which The top of the sheet was taken in time with the machine and over the conveyor table Plant are fed.
  • the stack support plate 6 of the stack 4 in the feeder 2 is Can be raised and lowered via a drive 7 via a lifting device (not shown).
  • An auxiliary stack support device 3 is assigned to the feeder 2, which as a along guide rails 10 on the feeder 2 with height-adjustable frame 8 horizontally movable support rods 9 arranged therein is formed.
  • the Support rods 9 can via drive means, not shown, according to the method of Auxiliary stack support device 3 in a predetermined height level between the bottom the stack 4 and the top of the pallet 5 for removing the stack 4 be retracted.
  • the operation and design of the support rods 9 of the Auxiliary stack support device 3 of the type shown in FIG. 1 is known per se and in the unpublished DE 197 04 285 A1 described in detail.
  • the frame 8 of the auxiliary stack support device 3 is not shown explicitly Lifting device along the guide rails 10 on the feeder 2 via a assigned drive 11 in the form of an electric motor.
  • the drive 7 for the main stack 4 of the feeder 2 and the drive 11 of the auxiliary stack support device 3 are each drive controls according to the design of the motors 12 and 13 assigned, which each have a converter / frequency converter in conjunction with a programmable controller / computer.
  • the drives 7, 11 are correspondingly predeterminable Switch-on signals energized in a suitable manner.
  • the mains connection of the drive controls 12, 13 is indicated in Figure 1.
  • the drive controls 12, 13 stand with the entire stack changing process as well as the control of the lifting movements 14 in operative connection.
  • the controller 14 is also a stack height scan 15 for the stack 4 in the feeder 2 connected in the form of a sensor.
  • the sensor Suitable signals can be taken from the stack height scan 15 precisely when if the top edge of the stack 4 is within a predetermined height level comes to rest.
  • 14 switching signals are generated by the controller generated and the drive control 12 of the stack support plate 6 of the investor 2 or via the drive control 13 of the auxiliary stack support device 3.
  • An input device 16 is also connected to the controller 14, through which an automatic batch change process with the corresponding Stroke movements of the auxiliary stack support device 3 and the retraction and extension the support rods 9 and the lifting and lowering of the stack support plate 6 of the Feeder 2 can be triggered manually.
  • the drive control 12, 13 of the drives 7, 11 of the feeder 2 or the auxiliary stack support device 3 are as programmable or parameterizable drive controls educated. By means of appropriate parameter specification it can be achieved that the drive 7, 11 which is energized by the drive control 12, 13 runs up to a specified speed with a defined ramp and then with End of the switch-on signal with a specified down-ramp (switch-off time) to come to a standstill again.
  • the drive control 13 assigned to the drive 11 of the auxiliary stack support device 3 is parameterized such that the same switch-on times of the control 14 for the drive control 12 of the feeder 2 and the drive control 13 of the Auxiliary stack support device 3 identical lifting movements of the auxiliary stack support device 3 or the stack support plate 6 of the feeder 2. This means that in the Speed-time diagrams of the corresponding drive controls 12, 13 during the same switch-on times (control 14) that of the drives 7, 11 executed movements have the same speed-time area contents.
  • FIG. 2 shows that on the part of the controller in connection with the stack height scanning 15 generated switch-on signals for the drive controls 12, 13.
  • the level of the switching signal S of the controller 14 is shown over time t. It is shown here that the switching signals S for the drive control 12th time-shifted to the switching signals S for the drive control 13 of the auxiliary stack support device are provided, but the length of the switching signals S are of equal length during the "ON" state. With those shown in Figure 2 Switching signals S are generated via the drive control 12, 13 and the drives 7, 11 of the stack support plate 6 of the feeder 2 and the auxiliary stack support device 3 same strokes.
  • FIG. 3 shows a course of the switching signals S of the controller 14 in an asynchronous Operation of drives 7, 11.
  • the drive controller 12 of the drive 7 for the feeder 2 still operated clocked, i.e. the stack support plate 6 moves in dependence the signals of the stack height scan 15 (sensor), whereas the drive control 13 a continuous switching signal S is specified so that the drive control 13 drives the drive 11 at a maximum rated speed.
  • the auxiliary stack support device 3 with a predetermined maximum Move speed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pile Receivers (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)

Claims (4)

  1. Entraínement de levage pour un dispositif automatique de changement de pile d'une machine traitant des feuilles, en particulier pour une machine d'impression offset à feuilles ayant un margeur en continu, comportant une plaque de support de pile (6) du margeur pouvant être levée et abaissée par l'intermédiaire d'un entraínement (7) et d'une commande d'entraínement (12) disposée en amont et un dispositif de support de pile auxiliaire (3) pouvant être levé et abaissé par l'intermédiaire d'un entraínement (11) et d'une commande d'entraínement (13) disposée en amont, les commandes d'entraínement (12, 13) étant en liaison active avec une commande (14) détectant les signaux d'un dispositif de balayage de hauteur de pile (15) coopérant avec la pile sur la plaque de support de pile,
    caractérisé en ce que les commandes d'entraínement (12, 13) associées aux entraínements (7, 11) sont réalisés comme convertisseurs munis à chaque fois d'un calculateur programmable, en ce que, pour le déplacement synchrone de la plaque de support de pile (6) et du dispositif de support de pile auxiliaire (3) par la commande (14), des signaux de commutation (S) de même durée peuvent être alloués aux commandes d'entraínement (12, 13), et en ce qu'une des commandes d'entraínement (12, 13) présente un paramétrage relatif à l'allure dans le temps de la vitesse de rotation, de sorte que, pendant un signal de commutation (S), le même mouvement de levage peut être provoqué par la charge (6, 3) entraínée par l'entraínement correspondant (7, 11) que par la charge du second entraínement (7, 11).
  2. Entraínement de levage selon la revendication 1,
    caractérisé en ce que, par la commande (14), pendant le déplacement synchrone de la plaque de support de pile (6) et du dispositif de support de pile auxiliaire (3), de façon correspondant aux signaux du dispositif de balayage de hauteur de pile (15), des signaux de commutation (S) de même longueur peuvent être engendrés de façon décalée dans le temps les uns par rapport aux autres.
  3. Dispositif de levage selon la revendication 1 ou 2,
    caractérisé en ce que, par la commande (14) pour déplacer la plaque de support de pile (6) du margeur (2) et le dispositif de support de pile auxiliaire (3) suivant un type de fonctionnement asynchrone, différents signaux de commutation (S) peuvent être amenés aux commandes d'entraínement (12, 13).
  4. Dispositif de levage selon une des revendications précédentes,
    caractérisé en ce que la commande d'entraínement (13) du dispositif de support de pile auxiliaire (3) présente le paramétrage relatif à l'allure dans le temps de la vitesse de rotation de l'entraínement (11).
EP98113067A 1997-08-19 1998-07-14 Commande de levage pour un dispositif automatique de changement de pile Expired - Lifetime EP0897884B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19735895A DE19735895C1 (de) 1997-08-19 1997-08-19 Hubantrieb für eine automatische Stapelwechselvorrichtung
DE19735895 1997-08-19

Publications (2)

Publication Number Publication Date
EP0897884A1 EP0897884A1 (fr) 1999-02-24
EP0897884B1 true EP0897884B1 (fr) 2002-09-04

Family

ID=7839401

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98113067A Expired - Lifetime EP0897884B1 (fr) 1997-08-19 1998-07-14 Commande de levage pour un dispositif automatique de changement de pile

Country Status (5)

Country Link
US (1) US6142463A (fr)
EP (1) EP0897884B1 (fr)
JP (1) JPH11116076A (fr)
AT (1) ATE223344T1 (fr)
DE (2) DE19735895C1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE59801570D1 (de) * 1997-02-05 2001-10-31 Roland Man Druckmasch Stapelwechselvorrichtung
NL1012923C2 (nl) * 1999-08-27 2001-02-28 Ocu Technologies B V Vellenafleginrichting voor het selectief afleggen van vellen op boven elkaar gelegen dragers.
US6290225B1 (en) * 1999-11-23 2001-09-18 Xerox Corporation Systems and methods for dynamically setting stack height and sheet acquisition time
US6698747B2 (en) * 2001-02-06 2004-03-02 Heidelberger Druckmaschinen Ag Method and system for providing sheet stack level control
DE102004002307A1 (de) 2003-02-03 2004-08-12 Heidelberger Druckmaschinen Ag Verfahren zur Synchronisation von Haupt- und Hilfsstapel

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD115336A1 (fr) * 1974-03-28 1975-09-20
DE4410384C1 (de) * 1994-03-25 1995-05-24 Roland Man Druckmasch Steuerung für eine Stapelhubvorrichtung
DE4418810C1 (de) * 1994-05-30 1995-11-30 Roland Man Druckmasch Verfahren und Vorrichtung zum automatischen Stapelwechsel an einem Bogenanleger
DE19516582C2 (de) * 1995-05-05 1997-03-06 Kba Planeta Ag Vorrichtung zur Vereinigung eines Restbogenstapels mit einem Hauptbogenstapel
US5626335A (en) * 1996-02-01 1997-05-06 Marquip, Inc. Vertical lift system for delivering sheets in stacks

Also Published As

Publication number Publication date
EP0897884A1 (fr) 1999-02-24
ATE223344T1 (de) 2002-09-15
US6142463A (en) 2000-11-07
DE59805386D1 (de) 2002-10-10
DE19735895C1 (de) 1998-09-10
JPH11116076A (ja) 1999-04-27

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