EP0683905A1 - Procede et dispositif de coordination du fonctionnement d'elements de machines - Google Patents

Procede et dispositif de coordination du fonctionnement d'elements de machines

Info

Publication number
EP0683905A1
EP0683905A1 EP95902758A EP95902758A EP0683905A1 EP 0683905 A1 EP0683905 A1 EP 0683905A1 EP 95902758 A EP95902758 A EP 95902758A EP 95902758 A EP95902758 A EP 95902758A EP 0683905 A1 EP0683905 A1 EP 0683905A1
Authority
EP
European Patent Office
Prior art keywords
machine
control unit
central control
rotatable
machine part
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.)
Withdrawn
Application number
EP95902758A
Other languages
German (de)
English (en)
Inventor
Dirk MÜLLER
Klaus Rudolph
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.)
ER-WE-PA DAVIS-STANDARD GMBH
Original Assignee
ER-WE-PA Davis-Standard GmbH
Kloeckner ER WE PA GmbH
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 ER-WE-PA Davis-Standard GmbH, Kloeckner ER WE PA GmbH filed Critical ER-WE-PA Davis-Standard GmbH
Publication of EP0683905A1 publication Critical patent/EP0683905A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C23/00—Non-electrical signal transmission systems, e.g. optical systems
    • G08C23/06—Non-electrical signal transmission systems, e.g. optical systems through light guides, e.g. optical fibres
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
    • G05B19/0423—Input/output
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/80—Optical aspects relating to the use of optical transmission for specific applications, not provided for in groups H04B10/03 - H04B10/70, e.g. optical power feeding or optical transmission through water
    • H04B10/801—Optical aspects relating to the use of optical transmission for specific applications, not provided for in groups H04B10/03 - H04B10/70, e.g. optical power feeding or optical transmission through water using optical interconnects, e.g. light coupled isolators, circuit board interconnections
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/20—Pc systems
    • G05B2219/25—Pc structure of the system
    • G05B2219/25356—Inductive coupling of power and signal

Definitions

  • the invention relates to a method for the functional coordination of machine elements and a device for carrying it out in accordance with the features of the preambles of claims 1 and 9.
  • Such a method and a device suitable for carrying it out are known from the document DE-OS 37 01 554, the object of which solves the problem of the number of connecting lines between a central control unit and a central power distribution unit and the machine elements of a complex machine system, i.e. in particular electric motors, pneumatic or hydraulic piston-cylinder arrangements actuated by solenoid valves, other electromechanical actuation devices and sensors for control variables - to the extent that these are not already coupled to the above-mentioned machine elements.
  • all machine elements - called actuators there - at least in groups each have their own control device arranged in their immediate vicinity - called an auxiliary control unit there - and their own power amplifier unit, with all control devices having a common data bus with the central control unit and all power amplifier units are connected directly to the respective control device and via a common power bus to the central power distribution unit.
  • the control devices can each have their own mixer
  • DE-OS 37 01 554 only provides a technical teaching for machines whose separately driven machine elements can be moved in a stationary manner relative to the machine frame or only translationally to the machine frame, in which case the electrical control and / or power supply cables are on them
  • the path between a central control unit and the individual machine elements may have to be flexible to a certain extent and are in no way interrupted, but no indication of the extent to which such a method can be transferred to devices in which at least two of the machine elements in question are in turn arranged on a machine part that is rotatable relative to the machine frame.
  • the turning disks normally perform swiveling movements of 180 °, which, although rare in relation to the movements of the other aforementioned units, always take place in the same direction due to the remaining periphery of the entire system, so that, with conventional supply, the rest on the turning disks After a few revolutions of the turning disks, all the electrical, hydraulic and / or pneumatic supply lines would be twisted into one another with energy.
  • slip rings are connected, on the one hand, to the consumers arranged there on the turntable by means of electrical lines fixedly installed on the turning disc, for their individually controlled energy supply and, on the other hand, are touched by sliding contacts which contact the respective end of electrical supply lines which are fixedly installed in the outer space of the turning disc represent, which in turn are acted upon by a central control and power distribution unit according to the program with electrical energy.
  • a special slip ring with sufficient insulation from its neighbors is, of course, required for each power supply line, so that the shaft carrying the slip rings reaches a considerable length with a corresponding weight and, accordingly, torque to be absorbed on the bearing of the turning disk.
  • each slip ring / sliding contact unit represents its own possible source of interference, which in any case requires a not inconsiderable maintenance effort.
  • a simple reduction of the system of the slip ring sliding contact units to two, namely one for a power bus and one for a data bus, is not possible with regard to the data bus, because slip ring sliding contact units do indeed transmit higher power, that is, also are suitable as a single unit for bridging an interruption of a power bus, but not as a transmission element for control signals of a bus-compatible type. Such an arrangement would be far too susceptible to failure.
  • the present invention is therefore based on the object of providing a method and a device suitable for carrying it out, with the aid of which the signal transmission between the control devices of machine elements and a central control unit and the function coordination thereby possible for all machine elements of a complex Machine system can also be carried out with a considerably lower amount of wiring and the associated investments and can be operated with a much higher level of operational reliability and ease of maintenance if the aforementioned machine elements are in turn arranged on a machine part that can be rotated.
  • At least two of the machine elements with their respectively assigned control and power amplifier devices are arranged on a machine part that is rotatable relative to the machine frame, each of the aforementioned control devices and the central control unit Special opto-electronic interface and the signal exchange between the above-mentioned control devices and the central control unit by means of modulated light waves via a data bus in the form of a piece-wise interrupted, single or multi-core light guide and an optocoupler suitable for bridging the interruption Type occurs because with such a method, on the one hand, clear control signals can be generated both at the central control unit and at each control device and, on the other hand, can also be easily deleted Have a line interruption between the central control unit and the various control devices in both directions without interference or interference.
  • REPLACEMENT LEAF Nete machine element exchanges signals with the central control unit via its own optical data bus, since the use of a multi-core light guide means that the laying of the individual wires (or channels) on the rotating machine part can be handled very variably.
  • each data bus transmits the signals via a stub line, because in this case only one wire, i.e. a channel, an optical fiber is required to either exchange each individual machine element separately or a group of machine elements to exchange signals with the central control unit.
  • each data bus exchanges the signals via a ring line, since this allows in a particularly simple manner both the machine elements arranged on the rotatable machine part and those outside the rotatable machine part arranged machine elements to exchange signals with the central control unit via a common data bus.
  • REPLACEMENT LEAF clear signal exchange between machine elements and the central control unit can also be carried out if the machine elements on the part of the central control unit can only be reached via a chain of more than one rotatable machine part, these machine parts being nested within one another.
  • an embodiment of the present method is advantageous, in which the signal exchange between machine elements, which are arranged outside the rotating machine part in a stationary manner or to a limited extent translationally displaceable relative to the machine frame, and the central control unit by means of modulated light waves via separate or group-wise common data buses takes place because it enables the signals of both the machine elements on a rotatable machine part and other machine elements to be easily compared and processed in the same way, so that the desired functional coordination of all machine elements is significantly facilitated.
  • a device has been found to be particularly advantageous for carrying out the method, in which at least two of the machine elements with their respective associated control and power amplifier devices on one side face each other
  • each of the aforementioned control devices and the central control unit each comprises a special optoelectronic interface which on the one hand both codes and addresses the signals coming from its control device or control unit and on the other hand only those to it Control device or control unit forwards the signals addressed to it, and between the above-mentioned control devices and the central control unit a partially interrupted single-wire or multi-wire light guide, which is bridged there by means of an optocoupler, is arranged because one such a device can be constructed in a simple manner from known components and then allows an undisturbed and distortion-free signal exchange between machine elements of the aforementioned type and a central control unit, in particular without difficulty re, if, in addition, the optocoupler is a rotary transmitter of known type which is held on or in the rotatable machine part such that its axis of rotation is aligned parallel to the axis of rotation of the rotatable machine part, the section of the light guide which
  • An embodiment of the present device is also advantageous, in which each wire of the light guide is terminated separately at its end facing away from the central control unit, since each individual wire of a light guide can be converted into a stub line in a simple manner.
  • the machine elements arranged outside the rotatable machine part in a stationary manner or to a limited extent translationally displaceable relative to the machine frame are connected to the central control unit by means of light guides laid in parallel, because this - At least in the testing stage - a very flexible handling of the mutual connection of machine elements and central control unit is permitted.
  • both the machine elements installed on the rotatable machine part and at least some of the machine elements arranged outside of it in a stationary manner or to a limited extent can be displaced translationally with respect to the machine frame by means of a single light guide are connected to the central control unit, because if the control devices are designed accordingly, the various machine elements on the rotatable machine part and outside of it can exchange signals with one another directly without the intermediary of the central control unit, which considerably speeds up the functional coordination of these machine elements.
  • An embodiment of the present device in which the rotatable machine part in turn is arranged on a machine part that can be rotated relative to the machine frame, and the signal transmission between the machine elements on the first-mentioned machine part and the central control unit via two cascades, has also proven to be advantageous
  • REPLACEMENT LEAF Rotary transmitter is carried out from one level to the next because this makes it possible to apply the above-mentioned method even when machine elements are installed on a rotatable machine part, which in turn is also arranged on a rotatable machine part, etc., which results in a multiple cascade of one another and can lead machine parts that can rotate against each other.
  • An embodiment of the above-mentioned device which is a transport device for material webs, in particular a turret winder for taking up or delivering material webs in roll form, ie. H. in so-called coils, because on such devices several machine elements, which in turn are to be controlled very precisely, are arranged either on both sides on turning disks or on one side on a turning disc and on the other side in a stationary manner, with the coils to be produced or unrolled being very sensitive React to any deviation of both the actual winding device and the simultaneously acting displacement device for the winding shaft from the predetermined synchronous movement sequence, which in the case of large windings can not only lead to considerable financial loss, but in particular also a considerable safety risk for the operating team represents.
  • the turret winder is equipped, on the side of each turret disc facing away from the winding shafts, with a rotary transmitter aligned with its axis of rotation parallel to the axis of rotation of the respective indexing disc, which rotates stationary with the indexing disc, provided that it is not arranged in the axis of rotation of the turning disc, since the supply of the signal line to each rotatable machine part takes place in a largely undisturbed area in the vicinity of the machine system and can take place there in such a way that the flexibility of the light guide as well as the mechanical load on the rotary transformer can also be kept within such limits that no interference with the signal transmission can be expected.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Electromagnetism (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Electric Cable Arrangement Between Relatively Moving Parts (AREA)

Abstract

L'invention concerne un procédé et un dispositif de coordination du fonctionnement d'éléments des machines faisant partie d'une installation complexe de machines pourvue d'une unité centrale de commande et d'une unité centrale de distribution d'énergie. Chaque élément de machine est associé à son propre dispositif de pilotage situé près de lui et relié par un bus de données à l'unité centrale de commande, et à son propre dispositif amplificateur de puissance directement relié au dispositif de pilotage et relié en même temps par un bus de puissance à l'unité centrale de distribution de puissance. Au moins deux éléments de machine sont montés avec leurs dispositifs de pilotage et d'amplification de puissance associés sur une partie de la machine susceptible d'être mise en rotation par rapport au bâti de la machine. Tous les dispositifs de pilotage, ainsi que l'unité centrale de commande, comprennent chacun une interface optoélectronique spéciale. Les signaux sont échangés entre les dispositifs de pilotage et l'unité centrale de commande par ondes lumineuses modulées au moyen d'un bus de données sous forme d'un guide de lumière monocâble ou multicâble à sections séparées par des interruptions et d'un coupleur optique de type approprié connu qui fait le pont entre les sections séparées par des interruptions.
EP95902758A 1993-12-13 1994-12-13 Procede et dispositif de coordination du fonctionnement d'elements de machines Withdrawn EP0683905A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4342395 1993-12-13
DE4342395 1993-12-13
PCT/DE1994/001480 WO1995016945A1 (fr) 1993-12-13 1994-12-13 Procede et dispositif de coordination du fonctionnement d'elements de machines

Publications (1)

Publication Number Publication Date
EP0683905A1 true EP0683905A1 (fr) 1995-11-29

Family

ID=6504831

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95902758A Withdrawn EP0683905A1 (fr) 1993-12-13 1994-12-13 Procede et dispositif de coordination du fonctionnement d'elements de machines

Country Status (2)

Country Link
EP (1) EP0683905A1 (fr)
WO (1) WO1995016945A1 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2441359A1 (de) * 1974-08-29 1976-03-11 Licentia Gmbh Anordnung zur kontaktlosen signaluebertragung zwischen relativ zueinander bewegten teilen
DE3008148A1 (de) * 1980-03-04 1981-09-17 Scharmann GmbH & Co, 4050 Mönchengladbach Datenuebertragungseinrichtung zwischen sich relativ zueinander drehenden teilen einer werkzeugmaschine
DE3441698A1 (de) * 1984-11-15 1986-05-22 Bergwerksverband Gmbh, 4300 Essen Verfahren zum uebertragen umfangreicher datenstroeme ueber rotationsschnittstellen
DE3701554A1 (de) * 1987-01-21 1988-08-04 Duerr Gmbh & Co Maschinenanlage mit mehreren aktoren

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9516945A1 *

Also Published As

Publication number Publication date
WO1995016945A1 (fr) 1995-06-22

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