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EP0600268B1 - Dispositif de surveillance dans un métier textile - Google Patents

Dispositif de surveillance dans un métier textile Download PDF

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Publication number
EP0600268B1
EP0600268B1 EP93118109A EP93118109A EP0600268B1 EP 0600268 B1 EP0600268 B1 EP 0600268B1 EP 93118109 A EP93118109 A EP 93118109A EP 93118109 A EP93118109 A EP 93118109A EP 0600268 B1 EP0600268 B1 EP 0600268B1
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EP
European Patent Office
Prior art keywords
monitoring device
stations
switch
coil
station
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
EP93118109A
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German (de)
English (en)
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EP0600268A1 (fr
Inventor
Gerhard Hamma
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.)
Sipra Patententwicklungs und Beteiligungs GmbH
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Sipra Patententwicklungs und Beteiligungs GmbH
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Publication of EP0600268A1 publication Critical patent/EP0600268A1/fr
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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/94—Driving-gear not otherwise provided for
    • D04B15/99—Driving-gear not otherwise provided for electrically controlled
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H13/00—Other common constructional features, details or accessories
    • D01H13/32—Counting, measuring, recording or registering devices
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/38—Devices for supplying, feeding, or guiding threads to needles
    • D04B15/48—Thread-feeding devices
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B35/00—Details of, or auxiliary devices incorporated in, knitting machines, not otherwise provided for
    • D04B35/10—Indicating, warning, or safety devices, e.g. stop motions
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C3/00—Registering or indicating the condition or the working of machines or other apparatus, other than vehicles

Definitions

  • the invention relates to a monitoring device in the preamble of claim 1 specified genus.
  • the vast majority of monitoring devices used in textile machine technology has a mechanical or at a variety of stations electrical, normally open or closed switch on when it occurs a preselected state, usually an error, is closed or opened (DE-AS 22 15 582, DE-AS 25 44 530, DE 31 38 472 C2). This has the closing of one Indicating light circuit and thus at least lighting the Indicator light result. In most cases, a shutdown signal is also given at the same time generated for the textile machine.
  • the preselected states can e.g. around Act thread break, needle break or the like.
  • the different stations can be in series or be connected in parallel.
  • Monitoring devices of this type can be manufactured inexpensively and perform their function with regard to switching off the machine without any problems.
  • problems arise when the filament lamp of the indicator light is no longer functional.
  • the operator especially when the monitoring device uses different sources of error can be monitored and the total number of existing stations is very large, perform cumbersome and time-consuming tasks to stop the machine Finding the error that caused the machine to stop.
  • It also has monitoring facilities this type of automatic recording of the operating data of the monitored Machine possible because it only indicates that a machine has stopped due to an error occured.
  • the real cause of this cannot be identified or registered, since all existing stations regardless of which machine status they monitor, are connected to the same transmission line and therefore the machine stop regardless of the type of error.
  • a simplification The fault location would at most be possible by having several transmission lines are provided, to which only a part of the stations is assigned, whereby however, the design effort would be significantly increased.
  • a control and monitoring device is also known (EP 0 078 550 A1), at which each individual station has a microprocessor and a memory in which a identification code permanently assigned to the station is stored.
  • the microprocessors of the individual stations are connected to a central control system via a common bus system. and monitoring unit connected. This allows the number of control lines reduce, but the effort is not due to the large number of microprocessors irrelevant.
  • the identification code of each station is only for the purpose of the central control and monitoring unit from individual components of the stations head for.
  • the respective station issues an error signal issued, on the one hand via the control and monitoring unit to a Shutdown of the textile machine can be used, but also one of the other Each station-assigned indicator light must be fed to be recognizable to make where the error occurred. An automatic operating data acquisition is not possible.
  • the invention is based, the monitoring device of the genus described at the outset in such a way that they not only transmission lines required, but is also operationally reliable, a flawless Identification of the station emitting a status signal and next to the Fault monitoring is also suitable for a variety of other monitoring tasks.
  • a monitoring device contains at least two in but usually a lot more stations 1a, 1b ... 1n. These can be, for example are thread guards who, for example, stop a knitting or weaving machine, if one of these threads breaks or has too much or too little tension (e.g. DE-AS 15 85 415). Alternatively or additionally, the stations can be made of needle guards exist, the needle breaks or the like. Determine (DE-AS 22 15 582). There is also in the Textile machine technology numerous other conditions that are continuously monitored and which can therefore be assigned to one of the stations of interest here. Such Monitoring is generally known to the person skilled in the art and therefore does not need here are explained in more detail. The same applies to the sensors used for monitoring.
  • the textile machine is usually switched off by means of an electrical contact initiated, which acts like a switch 2a, 2b ... 2n, the thread breakage or too large Thread tension or the like is closed.
  • Each switch 2a, 2b ... 2n has an indicator light 3a, 3b ... 3n on the one hand to a line 4 connected to a voltage source connected, on the other hand grounded, then one of the switches lights up when the switch is closed 2a ... 2n the assigned indicator light 3a ... 3n.
  • these are expediently resistors Ra ... Rn connected in parallel.
  • To turn off the machine a connected in line 4 relay or the like. Provided when closing any the switch 2a ... 2n responds.
  • Such a monitoring device can therefore not easily serve to identify the station 1a ... 1n, its switch 2a ... 2n was closed.
  • the monitoring device is constructed identically.
  • an integrated circuit IC 1 , IC 2 ... IC n is connected in series with each switch 2a ... 2n, which has a memory in which an identification code assigned to the respective station 1a ... 1n is stored.
  • line 4 forms a transmission line.
  • it is connected to one connection of a coupling coil 5, the other connection of which is grounded or connected to a second line 6 which is connected to ground and which are connected to the connections of those series circuits which are not connected to line 4 and which consist of the switches 2a ... 2n and the integrated circuits IC 1 ... IC n are formed. All of these series connections are therefore parallel to one another and parallel to the coupling coil 5.
  • the coupling coil 5 is inductively coupled to a receiver coil 7 of an interrogation and evaluation unit 8 (FIG. 1).
  • This has a receiving device 9 connected to the receiver coil 7 and a processing circuit 10 receiving its output signals, which, when an error or the like occurs, outputs a signal at its output 11 which is characteristic of the monitoring station 1a ... 1n at which the error has occurred.
  • the arrangement according to the invention is such that the status signal emitted by any station 1a ... 1n is always coded according to the identification code stored in the associated integrated circuit IC 1 ... IC n and is preferably a coded AC signal.
  • the receiving device 9 serves the purpose of processing the signals supplied by the receiver coil 7.
  • the processing circuit 10 finally emits a serially coded signal which corresponds to the identification code or is assigned to it in such a way that it is used to uniquely identify the station 1a emitting the status signal.
  • .. 1n can serve and for example consists of successive binary "0" and "1" information
  • a detection logic 15 with two outputs 15a and 15b is connected to the output 11.
  • the output coded at output 15a appears as at output 11, while at output 15b either a logical "0" or a logical "1" information appears.
  • the information "0” means that the detection logic has not recognized anything, which is interpreted to mean that all switches 2a ... 2n are open. If on the other hand from the detection logic detects a signal that corresponds to a signal that is would result if one of the switches 2a ... 2n is closed, then appears at the output 15b a "1” information meaning "reading correctly” or "detection of a Identification codes ".
  • This” 1 "signal can be used for a switching process and can be used, for example, to actuate a relay designed as a break contact the machine switches off.
  • the signal at output 15a can be supplied to a display in the usual way the operator, for example, in alphanumeric notation indicates from which station 1a ... 1n the status signal originates, so that e.g. an immediate Eliminating an error is possible regardless of whether the associated indicator light burns or is defective.
  • the signal at the output 11 or 15a of a detection device for the operating data are supplied, for example, in a protocol on the operation of the textile machines to be checked by the operator is made. In contrast to the past, this protocol can easily do more than just that Number of errors or machine stops, but also precisely indicate the sources of errors. Using a circular knitting machine as an example, this would mean that it was precisely recorded can be, on which knitting system which errors have occurred and when this was the case.
  • each station 1a ... 1n emits a status signal coded with its individual identification code
  • the power supply required to operate the existing integrated circuit IC 1 ... IC n must be ensured in each station 1a ... 1n.
  • a power supply line leading to all stations could be provided for this purpose.
  • the stations 1a ... 1n in contrast to the prior art, consist of passive circuits which are not permanently connected to a battery or the like and are not in themselves suitable for emitting status signals. Rather, to activate these circuits, means 12 are used to emit an interrogation signal, for example an oscillator, whose input 13 can be connected to a voltage source and whose output is connected to ground via a transmission coil 14.
  • the interrogation signal for example a sinusoidal voltage with a frequency of 100 to 150 KHz, then induces an alternating current in the coupling coil 5, which is converted into a DC voltage by means of a rectifier contained in the integrated circuits IC 1 ...
  • IC n which is used to operate the Integrated circuits IC 1 ... IC n and with closed switches 2a ... 2n is used to generate the status signals coded with the identification codes.
  • the DC voltage generated can be used to supply the associated indicator light 3a ... 3n with the required current when switches 2a ... 2n are closed.
  • the individual stations 1a ... 1n or their integrated circuits IC 1 ... IC n are expediently designed as so-called transponders or response devices which are generally known for other purposes and are implanted, for example, in animals in order to facilitate their identification (see, for example, US 5,012,236, 5,084,699 and 5,095,309 and WO 87/04900). Since the structure and mode of operation of such transponders are generally known, the documents mentioned are hereby made the subject of the present disclosure by reference to them in order to avoid repetition, so that further explanations can largely be dispensed with. The details explained below therefore only serve the purpose of facilitating the understanding of the monitoring device according to the invention.
  • IC n on the one hand and when receiving the coded error signals on the other hand is desired.
  • the query and evaluation unit 8 in a conventional hand-held reader, as is known, for example, when scanning bar codes.
  • the coupling coil 5 of each individual textile machine would have to be attached to a location that is easily accessible for the hand-held reader and the status report should be connected to an easily recognizable optical and / or acoustic signal, so that the operator is informed on which machine the hand-held reader is for Detection or detection of a condition must apply.
  • Transponders currently considered best for the purposes of the invention were developed and are developed by Trovan Limited, Isle of Man, Great Britain manufactured in the Federal Republic of Germany by AEG, Frankfurt / Main, and e.g. offered under the model names ID 100, ID 200/300 or LID 500 (cf. especially U.S. Patent 5,095,309).
  • the frequency is Interrogation signal e.g. 134 kHz.
  • the interrogation signal is rectified on the one hand in the transponder, to obtain the required operating voltages, on the other hand for generation a clock signal used to read a memory matrix.
  • the in this stored, binary coded identification code has e.g. 40 digits, which results in a huge number of different encodings can be achieved.
  • phase shift keying PSK
  • FSK frequency shift keying
  • the same parts are provided with the same reference numerals.
  • the switches 2a, 2b ... 2n each with a first coil 16a ... 16n, form a series circuit which is connected on the one hand to line 4 and on the other hand to line 6, which is connected to ground.
  • the integrated circuits IC 1 ... IC n are each connected in parallel to a second coil 17a ... 17n, which is inductively coupled to an assigned first coil 16a ... 16n. This results in an even better electrical isolation of the integrated circuits IC 1 ... IC n from the other circuit parts.
  • the interrogation signal transmitted via the transmission coil 14 and the coupling coil 5 is also passed through the assigned first coil 16a ... 16n and from there inductively to the second coil 17a ... 17n coupled to it transmitted, whereby in the integrated circuit IC 1 ... IC n connected to it the memory containing the identification code is queried and the generated status signal via the coils 17a ... 17n or 16a ... 16n, the transmission line 4 and the coupling coil 5 is transmitted to the receiver coil 7.
  • Fig. 3 the same parts are given the same reference numerals as in Fig. 1.
  • the only difference from Fig. 2 is that the switches 2a ... 2n are not in series with the first coils 16a ... 16n, but rather are additionally connected to the circuits consisting of the second coils 17a ... 17n and the integrated circuits IC 1 ... IC n .
  • a switch 2a ... 2n is closed, a status signal is transmitted to the receiver coil 7.
  • the coupling coil 5 is connected to a line 18 acting as a transmission line, in which a number of first coils 19a ... 19n is also connected. 4, only schematically shows, each of these first bobbins 19a ... 19n is assigned to a special textile machine TM 1 ... TM n and inductively coupled to a second bobbin 20a ... 20n.
  • FIG. 5 shows an embodiment which has a plurality of coupling coils 5a, 5b ... 5n, all of which are inductively coupled to a single transmitting and receiving coil arrangement 7, 14.
  • Each of these coupling coils 5a ... 5n can then either be analogous to FIG. 1 (cf. coupling coil 5) or analogous to FIG. 3 (cf. coupling coil 5b) or to any other embodiment described with at least one switch 2a ... 2n and an associated integrated circuit IC 1 ... IC n be connected.
  • a complete galvanic decoupling can be achieved and a plurality of coupling coils 5a ... 5n decoupled from one another can be controlled with a single transmitter coil 14.
  • a plurality of separate receiving coils 7 could be provided.
  • a capacitor 23 and a tens diode 24 can be connected in parallel with the integrated circuits IC 1 ... IC n .
  • the zener diode 24 serves the purpose of preventing a higher than the permissible operating voltage from the integrated circuits IC 1 ... IC n .
  • the capacitor 23 also offers protection against overvoltages by recharging accordingly if necessary.
  • FIG. 6 shows a further embodiment of the invention, in which the same parts are again provided with the same reference numerals as in FIG. 1.
  • this is not normally open, but normally closed switches 2a ... 2n, which are connected in series in line 4.
  • Each of these switches 2a ... 2n is connected in parallel with a circuit which consists of an integrated circuit IC 1 ... IC n and an indicator light 3a ... 3n connected in series therewith, which in turn is a resistor Ra, not shown here. .. Rn (Fig. 1) can be connected in parallel.
  • a resistor 25 is connected in the ungrounded line 6, which prevents a short circuit of the coupling coil 5.
  • FIG. 7 A circuit arrangement in which this is not necessary is shown in FIG. 7, in which the same parts are provided with the same reference numerals.
  • the circuits formed from the series-connected switches 2a ... 2n and integrated circuits IC 1 ... IC n are connected between lines 4 and 6, so that the same conditions as in Fig 1 result.
  • the indicator lights 3a ... 3n are also connected in series with the switches 2a ...
  • the monitoring device according to FIG. 7 should, however, be known in FIG. 7 with additional ones known to the person skilled in the art Not provided facilities are provided, which come into effect automatically.
  • lines 4 and 26 with a switch 29 and 30, respectively, with switch 29 in line 4 normally being opened and switch 30 in line 26 being normally closed.
  • the circuit described has the effect that when one of the switches 2a ... 2n is closed, the textile machine is first stopped via the relay 27.
  • switches 29 and 30 can be designed as pushbuttons which are biased by springs into their position shown in FIG. 7.
  • Fig. 8 it is indicated that the monitoring device according to the invention also for tasks other than just error monitoring can be used.
  • the stations 32 are, for example, stations corresponding to the stations 1a ... 1n Fig. 1, which are used for error monitoring and include switches, for example Change state when a preselected error, e.g. Thread or needle break occurs.
  • This Stations 32 can be connected to lines 4 and 6 according to FIGS. 1 and 6, the line 6 can in turn be the machine mass.
  • the stations 33 are, for example, those which serve the general status display or the purpose of alerting the operator to a handle to be carried out. They contain, for example, switches which are actuated when the machine lighting or the like is switched on or which are used to reset devices which are set when an error occurs or the like and which have to be reset before continuing to work with the textile machine. Alternatively, it can be a counter or the like, which must be reset to zero when the machine is started. Switches can also be provided which have to be closed or opened when a certain working shift begins. Finally, it can be a station which is indicated, for example, in FIG. 3 by the coil 16a and is arranged at an easily accessible location on the machine.
  • the unit consisting of the coil 17a and the integrated circuit IC 1 can be accommodated in a code card carried by an operator, so that the operator can enter their identity into the textile machine before the start of the shift and, for this purpose, can bring the code card briefly close to the coil 16a. This would make it possible to automatically identify which operator was working on the machine at a particular point in time. Another possibility would be to make the number of revolutions of a circular knitting machine countable, for example, by briefly closing a switch with each revolution and generating a corresponding status signal that triggers a counting process in a counter.
  • the stations 34 can finally be those with a control or setting function act, for example, an on or off switch for the textile machine, a Switch that is used when jogging or when switching the textile machine to creeper is operated, or are assigned to a device that is used to adjust the pulling force a take-off device that serves thread tension or the like.
  • a control or setting function act, for example, an on or off switch for the textile machine, a Switch that is used when jogging or when switching the textile machine to creeper is operated, or are assigned to a device that is used to adjust the pulling force a take-off device that serves thread tension or the like.
  • Block 38 is the drive motor of a circular knitting machine assigned in such a way that it is started if an assigned one is used Start switch is operated within one of the stations 34.
  • Block 39 is correspondingly associated with a brake that is activated when an associated stop switch within one of the stations 34 is actuated.
  • block 40 is a switch assigned to stations 33 and serves e.g.
  • an output of the computer 36 would be possible with a counter Connect that counts the machine revolutions or the like. Or via further outputs of the Computer 36 to make preselected settings.
  • the pull-off force could e.g. each time the button is pressed in stages from e.g. 5 pond increases or decreases and the choice of the sign via a key of the Be set.
  • the arrangement can preferably be such that receive certain states (e.g. "lighting on") when the main switch is actuated remain and do not have to be restored when the machine is switched on again
  • certain states e.g. "lighting on”
  • the computer 36 on the other hand, because all of the Stations 32 to 34 signals coming from serially coded AC signals exist and from the query and evaluation unit 8 as a multi-digit, alphanumeric Information is forwarded to the computer 36, which this information for intended purposes.
  • the computer 36 therefore only needs one effective serial interface, e.g. according to the RS 232 standard.
  • FIG. 9 An exemplary embodiment for an inductive switch is indicated in FIG. 9.
  • This shows a known thread storage and delivery device 42 with a storage drum 43, around which a thread 44, which, for example, is to be fed to a knitting machine and is drawn off from a take-off spool, not shown, is wound with a plurality of turns.
  • the thread 44 passes through two thread eyelets 45 and 46 or the like, between which a bow-like sensor 47 is arranged, which normally rests on the thread 44.
  • the sensor 47 falls due to its gravity into the position 47a shown in broken lines and thereby triggers a switching operation in the sense of the above description (DE-PS 35 01 944), which is used to switch off the knitting machine .
  • the switching process is effected in that the sensor 47 is provided with a metal lug 48 which, when the sensor is resting on the thread 44, is arranged in the gap 47 between two coils, for example the coils 16a and 17a according to FIG. 3. These are assigned, for example, to a monitoring station for the device 42. If it is a monitoring station according to FIG. 3, switch 2a may be missing there, for example.
  • the invention is not restricted to the exemplary embodiments described, which can be modified in many ways. This initially applies to the integrated circuits IC 1 ... IC n , in their place of which circuits made up of individual switching elements could of course also be used. Programmable read-only memories (PROM, EPROM, etc.) are preferably suitable as memories in both cases.
  • the transmitting and receiving coil unit can be provided with a single coil (WO 87/04900), but in the solution which has hitherto been considered the best (for example US Pat. No. 5,012,236), two receiving coils are connected in a differential circuit and are arranged within a transmitter coil that the interrogation signals generated by the latter are not noticeable in the receiver circuit.
  • any other transmission and reception units could be used, in particular those with antennas or the like for transmitting the interrogation signals or to receive the status signals on one side and to receive the query signals or to send the status signals on the other side.
  • the monitoring device described for monitoring a plurality of textile machines, each of which has only a single station la... 1n.
  • the further processing of the received and evaluated status signals is largely arbitrary, even if the invention except for pure error detection and error display can be used successfully, particularly in the context of the daily recording of current operating data and to fulfill tax tasks.
  • a particularly important further monitoring would be, for example, checking the different thread guides of a thread changing device. Since only one of the thread guides is switched on while all other thread guides are switched off at the same time, the possibility described above of providing each individual thread guide with its own identification code can easily contribute to determining whether an inactive thread guide is due to an error or is currently inactive due to a predetermined pattern, and in the latter case can be used to avoid an undesired machine stop.
  • the evaluation part of the monitoring device it could be expedient to send out the interrogation signals in the form of pulse trains and to receive the status signals during the pauses occurring between them and / or to process the various information in such a way that not only the first status to be recorded is reliable can be recognized, but also several, more or less simultaneously or shortly occurring errors or changes in state can be distinguished from each other.
  • other couplings in particular combined inductive / capacitive couplings for transmitting the status signals and / or the operating energy, can also be provided, although it is also possible to use the operating energy for the integrated circuits IC 1 ... IC n to be transmitted by other means, for example via line 26 in FIG.
  • the invention can be used with particular advantage wherever certain coded functions or information have to be transmitted between components which carry out relative movements to one another, as is the case, for example, with Circular knitting machines between the lock and the needle cylinder or the frame and the take-off device or, in the case of flat knitting machines, between the carriage and the needle beds.
  • the query and evaluation unit 8 it would be possible to arrange the query and evaluation unit 8 on a stationary part, and selected stations 1 a ... 1n on a moving part. Since devices of the type described can easily bridge distances of a few millimeters, it would only be necessary to arrange the transmitting and receiving coils 7, 14 or the like and the coupling coils 5 or 5a ... 5n assigned to them in such a way that they pass sufficiently close to each other at each revolution or stroke of the parts moving relative to one another. This could result in a completely contactless transmission of identifiable status signals.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Filamentary Materials, Packages, And Safety Devices Therefor (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Selective Calling Equipment (AREA)
  • Testing And Monitoring For Control Systems (AREA)
  • Looms (AREA)
  • Time Recorders, Dirve Recorders, Access Control (AREA)
  • Knitting Machines (AREA)
  • Emergency Alarm Devices (AREA)
  • Treatment Of Fiber Materials (AREA)
  • General Factory Administration (AREA)

Claims (29)

  1. Dispositif de surveillance pour un métier textile présentant au moins deux stations (1a ... 1n) qui émettent des signaux électriques d'état lorsque des états prédéterminés se produisent, comprenant une unité d'exploitation (8) recevant les signaux d'état pour l'identification de la station (1a ... 1n) émettant un signal d'état, caractérisé en ce que chaque station (1a ... 1n) présente une mémoire, dans laquelle est stocké un code d'identification qui lui est affecté de manière permanente, de telle sorte que le signal d'état émis par la station est codé avec le code d'identification qui lui est affecté, et en ce que l'unité d'exploitation présente des moyens (9, 10, 15) pour détecter les codes d'identification.
  2. Dispositif de surveillance selon la revendication 1, caractérisé en ce que les stations (1a ... 1n) comprennent des circuits de commutation passifs (IC1 ... ICn) et l'unité d'exploitation (8) est réalisée comme une unité d'interrogation et d'exploitation et présente à cet effet un moyen (12) pour produire un signal d'interrogation, par lequel les circuits de commutation passifs (IC1 ... ICn) peuvent être activés.
  3. Dispositif de surveillance selon la revendication 1 ou 2, caractérisé en ce que les stations (1a ... 1n) sont couplées par induction avec l'unité d'exploitation (8).
  4. Dispositif de surveillance selon la revendication 2 ou 3, caractérisé en ce que les circuits de commutation passifs (IC1 ... ICn) présentent des circuits de commutation réalisés à la manière de répondeurs.
  5. Dispositif de surveillance selon l'une des revendications 2 à 4, caractérisé en ce que les circuits de commutation (IC1 ... ICn) présentent une mémoire avec des codes d'identification non modifiables.
  6. Dispositif de surveillance selon l'une des revendications 1 à 5, caractérisé en ce que l'unité d'exploitation (8) présente un agencement de bobines d'émission et de réception (7, 14) et les stations (1a ... 1n) sont raccordées à au moins une bobine de couplage (5) couplée par induction avec l'unité de bobines d'émission et de réception (7, 14).
  7. Dispositif de surveillance selon l'une des revendications 1 à 6, caractérisé en ce que au moins une station (1a ... 1n) présente un commutateur (2a ... 2n) se trouvant normalement à l'état ouvert (fermé), passant à son état fermé (ouvert) lorsqu'il se produit un changement d'état affecté à celui-ci et permettant ainsi l'émission d'un signal d'état.
  8. Dispositif de surveillance selon l'une des revendications 3 à 6, caractérisé en ce que au moins une station présente un moyen (48) empêchant normalement son couplage par induction avec l'unité d'interrogation et d'exploitation, établissant le couplage par induction lorsqu'un état affecté se produit et permettant ainsi l'émission d'un signal d'état.
  9. Dispositif de surveillance selon la revendication 8, caractérisé en ce que le moyen (48) est un composant qui peut être glissé dans la fente entre deux bobines.
  10. Dispositif de surveillance selon l'une des revendications 6 à 9, caractérisé en ce qu'il est prévu une seule bobine de couplage (5) et celle-ci est raccordée à une ligne de transmission (4) reliée à toutes les stations (1a ... 1n).
  11. Dispositif de surveillance selon la revendication 10, caractérisé en ce qu'au moins une station présente un montage en série raccordé à la ligne de transmission (4), composé d'un commutateur (2a ... 2n) et d'un circuit de commutation passif (IC1 ... ICn) relié à celui-ci.
  12. Dispositif de surveillance selon la revendication 10, caractérisé en ce que au moins une station présente un circuit de commutation passif (IC1 ... ICn) ayant une première bobine (17a ... 17n) et une seconde bobine (16a ... 16n) couplée par induction avec celle-ci, qui forme avec un commutateur (2a ... 2n) un montage en série raccordé à la ligne de transmission (4).
  13. Dispositif de surveillance selon la revendication 10, caractérisé en ce que, entre l'agencement de bobines d'émission et de réception (7, 14) et la bobine de couplage (5), est branché un circuit électrique ayant deux autres bobines, dont l'une est couplée par induction avec l'agencement de bobines d'émission et de réception (7, 14) et l'autre avec la bobine de couplage.
  14. Dispositif de surveillance selon la revendication 10, caractérisé en ce qu'au moins une station (1a ... 1n) présente un circuit de commutation passif (IC1 ... ICn) ayant un commutateur (2a1 ... 21m) et une première bobine (20a ... 20m), qui est couplée par induction avec une seconde bobine (19a ... 19n) raccordée à la ligne de transmission (18).
  15. Dispositif de surveillance selon la revendication 10, caractérisé en ce qu'une majorité de bobines (19a ... 19n), qui sont chacune affectées à un métier textile (TM1 ... TMn), est branchée sur la ligne de transmission (18) et chaque bobine (19a ... 19n) est couplée par induction avec au moins une station.
  16. Dispositif de surveillance selon l'une des revendications 6 à 9, caractérisé en ce qu'une majorité de bobines de couplage (5a ... 5n) est couplée avec l'agencement de bobines d'émission et de réception (7, 14), et chaque bobine de couplage (5a ... 5n) est en relation avec au moins une station, qui présente un circuit de commutation passif (IC1 ... ICn) et un commutateur (2a ... 2n).
  17. Dispositif de surveillance selon l'une des revendications 7 à 16, caractérisé en ce que le commutateur (2a ... 2n) d'au moins une station (1a ... 1n) est raccordé en parallèle sur la ligne de transmission (4) (Fig. 1).
  18. Dispositif de surveillance selon l'une des revendications 7 à 17, caractérisé en ce que le commutateur (2a ... 2n) d'au moins une station (1a ... 1n) est branché en série sur la ligne de transmission (4) (Fig. 6).
  19. Dispositif de surveillance selon l'une des revendications 1 à 18, caractérisé en ce que des stations (32) sont prévues pour servir à la surveillance des défaillances.
  20. Dispositif de surveillance selon l'une des revendications 1 à 19, caractérisé en ce que des stations (34) sont prévues pour servir à des fonctions de commande.
  21. Dispositif de surveillance selon l'une des revendications 1 à 20, caractérisé en ce que des stations (33) sont prévues pour servir à l'indication d'état.
  22. Dispositif de surveillance selon l'une des revendications 1 à 21, caractérisé en ce que des éléments d'indication (3a ... 3n) sont affectés aux stations (1a ... 1n) et la ligne de transmission (4) transmet aussi l'énergie nécessaire à leur fonctionnement.
  23. Dispositif de surveillance selon l'une des revendications 1 à 22, caractérisé en ce que des éléments d'indication (3a ... 3n), qui sont raccordés à une autre ligne (26) servant à leur alimentation électrique, sont affectés aux stations (1a ... 1n).
  24. Dispositif de surveillance selon la revendication 23, caractérisé en ce que les éléments d'indication (3a ... 3n) sont branchés en parallèle avec les circuits de commutation passifs (IC1 ... ICn) et la ligne (26) servant à l'alimentation électrique présente un commutateur (30) normalement fermé, la ligne de transmission (4) présentant au contraire un commutateur (29) normalement ouvert.
  25. Dispositif de surveillance selon l'une des revendications 1 à 24, caractérisé en ce que, pour former un dispositif de surveillance et de commande, un calculateur (36) est connecté à une sortie (15a) de l'unité d'exploitation (8).
  26. Dispositif de surveillance selon la revendication 25, caractérisé en ce que le calculateur (36) est équipé d'un nombre prédéterminé de sorties programmables, pouvant être connectées aux éléments de circuit (38 à 40).
  27. Dispositif de surveillance selon la revendication 25 ou 26, caractérisé en ce que le calculateur (36) est relié à l'unité d'exploitation (8) au moyen d'une seule interface série.
  28. Dispositif de surveillance selon l'une des revendications 1 à 27, caractérisé en ce qu'il est prévu pour la transmission des signaux d'état à l'unité d'exploitation (8) une ligne de transmission (4) commune à une majorité de stations (1a ... 1n).
  29. Dispositif de surveillance selon l'une des revendications 1 à 27, caractérisé en ce qu'il est prévu pour la transmission des signaux d'état à l'unité d'exploitation (8) une ligne de transmission (4) commune à toutes les stations (1a ... 1n).
EP93118109A 1992-12-03 1993-11-09 Dispositif de surveillance dans un métier textile Expired - Lifetime EP0600268B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4240628 1992-12-03
DE4240628A DE4240628C2 (de) 1992-12-03 1992-12-03 Überwachungseinrichtung an einer Textilmaschine

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EP0600268A1 EP0600268A1 (fr) 1994-06-08
EP0600268B1 true EP0600268B1 (fr) 1998-05-20

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EP93118109A Expired - Lifetime EP0600268B1 (fr) 1992-12-03 1993-11-09 Dispositif de surveillance dans un métier textile

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US (1) US6124803A (fr)
EP (1) EP0600268B1 (fr)
JP (1) JPH06261379A (fr)
DE (1) DE4240628C2 (fr)
ES (1) ES2118875T3 (fr)

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Also Published As

Publication number Publication date
ES2118875T3 (es) 1998-10-01
EP0600268A1 (fr) 1994-06-08
DE4240628C2 (de) 2000-11-09
JPH06261379A (ja) 1994-09-16
DE4240628A1 (de) 1994-06-09
US6124803A (en) 2000-09-26

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