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EP3767019B1 - Agencement de capteur permettant de détecter au moins une caractéristique physique d'une pluralité de fils - Google Patents

Agencement de capteur permettant de détecter au moins une caractéristique physique d'une pluralité de fils Download PDF

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Publication number
EP3767019B1
EP3767019B1 EP20185074.0A EP20185074A EP3767019B1 EP 3767019 B1 EP3767019 B1 EP 3767019B1 EP 20185074 A EP20185074 A EP 20185074A EP 3767019 B1 EP3767019 B1 EP 3767019B1
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EP
European Patent Office
Prior art keywords
thread
threads
sensor
accordance
sensors
Prior art date
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Application number
EP20185074.0A
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German (de)
English (en)
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EP3767019A1 (fr
Inventor
Hans-Jürgen BAUDER
Patrick Dixon
Thomas Fischer
Stefan Schindler
André BÜLAU
Karl-Peter Fritz
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.)
Hann-Schickard-Gesellschaft fuer Angewandte Forschung eV
Deutsche Institute fuer Textil und Faserforschung Denkendorf DITF
Original Assignee
Hann-Schickard-Gesellschaft fuer Angewandte Forschung eV
Deutsche Institute fuer Textil und Faserforschung Denkendorf DITF
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Publication of EP3767019A1 publication Critical patent/EP3767019A1/fr
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Publication of EP3767019B1 publication Critical patent/EP3767019B1/fr
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Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02H—WARPING, BEAMING OR LEASING
    • D02H13/00—Details of machines of the preceding groups
    • D02H13/02—Stop motions
    • D02H13/04—Stop motions responsive to breakage, slackness, or excessive tension of threads, with detectors for individual threads or small groups of threads
    • D02H13/08—Stop motions responsive to breakage, slackness, or excessive tension of threads, with detectors for individual threads or small groups of threads electrical
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H63/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
    • B65H63/02—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material
    • B65H63/024—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials
    • B65H63/028—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials characterised by the detecting or sensing element
    • B65H63/032—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials characterised by the detecting or sensing element electrical or pneumatic
    • B65H63/0321—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials characterised by the detecting or sensing element electrical or pneumatic using electronic actuators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H63/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
    • B65H63/06—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to presence of irregularities in running material, e.g. for severing the material at irregularities ; Control of the correct working of the yarn cleaner
    • B65H63/062—Electronic slub detector
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D49/00—Details or constructional features not specially adapted for looms of a particular type
    • D03D49/04—Control of the tension in warp or cloth
    • D03D49/18—Devices for indicating warp tension
    • 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
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments
    • 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
    • B65H2701/30—Handled filamentary material
    • B65H2701/38—Thread sheet, e.g. sheet of parallel yarns or wires

Definitions

  • the invention relates to a sensor arrangement for detecting at least one physical parameter of a multiplicity of threads, a device for checking physical parameters of the multiplicity of threads using the sensor arrangement, and a method for determining a physical parameter.
  • Typical thread counts for the warp threads are from a few hundred to several thousand individual threads.
  • the correct setting of the thread tension of each individual warp thread is important for achieving optimal production results. In practice, this means a considerable amount of effort, which usually means that the warp threads, which are unwound from so-called creels and guided via a complicated system of thread guide elements to the weaving point - or in the case of classic warp beam production to the winding point - each individually with weights or Yarn brakes must be individually pretensioned.
  • a so-called condenser board is used as the last thread feed-through element before the weaving or winding point, in which each individual thread is guided through a precisely assigned guide sleeve.
  • a condenser board is used to concentrate individual threads that are very far apart from one another and that are unwound from a creel, for example, so that the distance between the threads is greatly reduced.
  • a typical condenser board has dimensions in the middle two-digit cm range and, similar to a perforated plate, contains a few Hundreds to several thousand thread bushings or thread bushings.
  • the sensory detection of the thread tension is usually realized today with so-called three-point sensors, with a thread being guided in a zigzag over three rollers and the middle roller being spring-mounted and movable perpendicularly to the thread direction. Depending on the thread tension, the middle roller is deflected to different extents. this deflection is measured e.g. potentiometrically and serves as a measure for the thread tension.
  • Such sensors are relatively expensive on the market, which is why the use of a thread tension sensor on all warp threads of a weaving or warping machine is not economical and, moreover, is not easy to produce in terms of space and with regard to the necessary wiring of all sensors. In practice, this means that such sensors are either only used on individual threads, e.g.
  • Solutions that measure, for example, a thread tension of a large number of threads are, inter alia, from the disclosure of the documents DE 102 328 27 A1 known in which several sensors are combined in a row to form a sensor device. In order to detect all the threads, a number of such sensor devices are aligned parallel and offset to one another at a specific distance, with the individual sensor devices each checking a specific number of threads. The individual sensor devices each have a data bus that transmits the recorded data to a common control device. The proposed sensor device requires a lot of installation space and considerable technical effort to operate it.
  • a measuring device for the tensile force of threads is from the publication DE 10 2010 019 239 A1 known.
  • a plurality of sensors are arranged in a row, with the individual sensors being in the form of a ring, on the circumference of which a thread is guided in each case.
  • the thread will be there guided or deflected over at least part of the ring, so that a force transducer coupled to the ring can determine the tensile force of the thread based on a displacement of the ring caused by the thread.
  • the arrangement described for measuring the tensile force of threads is only suitable for a small number of threads, since the space required would increase disproportionately in relation to the threads to be measured.
  • a warping machine which has a breakage detection device.
  • the breakage detection device has, for each of a plurality of threads, a receiving ring on which the thread exerts a pressure. If a thread is broken, this pressure is missing, which is detected by the opening or closing of a contact.
  • the CN 208 948 567 U discloses a yarn guide having a plurality of yarn guide holes each used to guide a yarn.
  • An individual tension sensor connected to a control module is provided for each yarn guide hole.
  • a sensor arrangement for detecting at least one physical parameter of a large number of threads is proposed, with a sensor plate with a large number of thread bushings which are arranged in a two-dimensional grid, with each thread bushing being assigned at least one sensor which is designed in order to detect the at least one physical parameter of a thread guided through the thread passage.
  • An array of sensors in one The two-dimensional grid enables a high concentration of the sensors while at the same time reducing the complexity of their interconnection or coupling to other interfaces or external devices for further processing of the recorded data.
  • Such a sensor arrangement makes it possible, for example, to record a large number or all of the warp threads of a weaving machine at the same time. The same or different physical parameters of the threads can be recorded.
  • the threads checked by the sensor arrangement can also be different from one another, for example made of different material or have different strand thicknesses.
  • the sensor arrangement has a printed circuit board with holes, which is attached to the sensor plate, the printed circuit board having line structures for making electrical contact with the sensors.
  • the parallelization of the measuring cells and the arrangement or wiring of the sensors on the printed circuit board with appropriate bores can be easily accomplished through a clever mechanical design. In this way, a large number of warp threads that are guided through it can be recorded or measured directly. In this way, complex individual wiring of hundreds - up to thousands - of sensors can be avoided. In addition, such a structure promises enormous cost savings compared to the use of hundreds - up to thousands - of individual sensors.
  • the wiring and power supply of the sensors can be carried out completely via the printed circuit board, so that no large cable strands have to be accommodated between the warp threads, which under certain circumstances can lead to tangles or knots. Furthermore, any necessary readout electronics can be placed in the immediate vicinity of the measuring points, so that an error can be assigned, for example, directly on the weaving machine or warp beam on the spot.
  • Another aspect of the invention relates to a device for testing physical parameters of a plurality of threads, in which the device comprises a sensor arrangement according to one of the embodiments described below, and a first thread-guiding device with respective thread passages for the threads and a second Has thread-guiding device with respective thread passages for the threads, between which the sensor arrangement is arranged, so that the first and second thread-guiding device and the sensor arrangement define a three-point mounting for the threads.
  • Yet another aspect of the invention relates to a method for determining at least one physical parameter of a thread of a large number of threads using a device according to one of the following exemplary embodiments of the device for testing physical parameters of a large number of threads, the method detecting the physical parameter of the thread passed through the respective thread passage by means of the associated sensor.
  • Embodiments and further advantageous aspects of the sensor arrangement or the device with the sensor arrangement and the method are specified in the respective dependent patent claims.
  • the effects and advantages of the features of the exemplary embodiments discussed below apply to the sensor arrangement to the same extent as the device with the sensor arrangement and the method for operating this device or sensor arrangement and can be exchanged with one another and/or linked to one another.
  • the sensor arrangement detects one or more physical parameters that are caused by a mechanical force.
  • mechanical parameters derived from a mechanical force such as thread tension or yarn count and the like, can be recorded or determined.
  • the sensors of the sensor arrangement expediently each have a movable element, with the movable elements of the sensors being movable in the same direction relative to the sensor plate.
  • the moveable elements allow the sensor arrangement to be used particularly flexibly, since their mobility makes equipping or servicing the individual sensors considerably easier. Due to the possibility of a movement in the same direction, similar or almost identical measurement conditions can be created for the individual threads passed through the sensors. This is particularly advantageous if, for example, a warp beam is to be wound up or a fabric is to be woven that is to have essentially homogeneous properties within a predetermined tolerance interval of the properties of the threads used for this purpose.
  • individual groups of threads with different properties or individual threads can also ensure compliance with specified tolerance ranges physical parameters are recorded, measured and / or compared.
  • relative movements are particularly well suited to detecting and evaluating physical parameters. Sensors for detecting a relative movement can also be produced and installed inexpensively and can be easily miniaturized, which allows such sensors to be compacted to a large extent on a sensor plate.
  • the movable element is a guide sleeve which is resiliently mounted in the thread passage of the sensor plate.
  • Spring bearings are particularly simple, robust and inexpensive to implement.
  • the sensors are each designed to detect a position of the movable element. Both storage and detection of the position of the movable element can take place on several sides, so that a movement of the thread guided through the thread passage is possible in different directions. For example, when recording the movement of the movable element in different directions, force components or resulting forces can be determined, with the help of which a large number of physical parameters can also be deduced at the same time. The combination of different physical parameters also allows the plausibility of the measured values to be checked, which significantly increases the informative value and security when determining the physical parameters.
  • At least one of the sensors is a mechanical and/or capacitive and/or inductive and/or optical and/or magnetic and/or piezoelectric and/or resistive sensor.
  • the choice of the sensors can be based on the specific needs of the user and can thus be tailored specifically to a specific material composition and/or type of manufacture and/or use of the threads to be tested.
  • a large number of physical parameters of a thread can be recorded or determined individually or together by one and the same sensor.
  • Other physical parameters can include: Diameter, cross-section, temperature, moisture, thread surface, parallel position of the individual filaments, coefficient of friction, electrical conductivity, light transmission, thermal conductivity, processed length and speed.
  • a target/actual comparison of the physical parameters during the processing of the threads allows very precise quality control, which is based on one or more of the physical parameters mentioned. Faulty threads or conditions during production are detected and corrective action can be taken before faulty textile material - fabric - is produced.
  • the printed circuit board includes components that are designed to have the physical parameter of the thread to be recorded and/or checked and/or evaluated and/or made available via an interface.
  • This multitude of options enables the recorded physical parameters to be processed in real time or to be saved for later use as required.
  • a specific length range of a specific thread can be assigned to a specific task or area of the fabric and thus be used optimally. As a result, a selective use of length ranges of the same thread is possible depending on the weave.
  • the thread bushings for the threads of the first and/or second thread guiding device and the thread bushings of the sensor plate are arranged in such a way that the threads running through the respective thread bushings essentially are parallel.
  • essentially parallel is to be understood as meaning that the threads can be limp and can have slight tolerances in their longitudinal course from thread passage to thread passage, for example with regard to their tension.
  • a parallel arrangement along the course of the individual threads allows almost the same measurement conditions for the threads passed through the thread bushings and sensors. A measurement under the same conditions is particularly desirable when using homogeneous material or homogeneous threads.
  • the first and/or second thread guiding device has a plate with thread passages, in the thread passages of the sensor plate and the first and/or second thread guiding device, through which the same thread is to be guided, do not lie in a flight. This can ensure that the sensors of the sensor plate are loaded in the direction of extension of the sensor plate, so that an effect of the thread is exerted on the respective sensor, from which a physical parameter can be derived.
  • a special embodiment allows the threads in the warp of a weaving machine to be guided through, for example, three condenser boards connected in series, which are aligned parallel to one another and of which the central condenser board has a lateral offset to the front and rear condenser boards, instead of just one condenser board.
  • a condenser board is understood to mean a plate that has holes through which one or more threads are guided and brought together, which are unwound from a creel, for example, with the distance between the individual threads being greatly reduced by the condenser board. In this way, the entire group of threads is guided in a kind of three-point bearing.
  • each individual thread passage for example in the form of a guide sleeve through which the warp threads are guided, is mounted in a movable holder that allows a lateral offset depending on a physical parameter, e.g. thread tension. This is achieved, for example, by suspending the guide sleeves on elastic holder structures, such as resilient structures.
  • a printed circuit board is attached parallel to the middle condenser board, which contains the corresponding vias - drilled holes - for the thread feedthroughs.
  • Sensor structures are arranged on the printed circuit board, which can measure the respective displacement of the guide sleeves. In this case, the sensing or measurement can take place in various ways.
  • a warp or a warp thread within the meaning of the invention is a thread that is stretched out in the longitudinal direction during weaving in a weaving machine. In the finished fabric, the warp threads lie parallel to the selvage, while the weft threads run across it.
  • the thread passages of the plate of the first and/or second thread guide device are arranged in the same two-dimensional grid as the thread passages of the sensor plate.
  • the method also includes storing the physical parameter detected by the sensors.
  • the physical parameter detected by the sensors By saving a or several detected physical parameters of the same or a large number of threads, there is a high level of traceability when using the individual threads. For example, it can be derived from this when a thread and/or in which state of tension a thread was used during the weaving process, depending on its recorded physical parameters.
  • a plausibility check can also be carried out with regard to individual and/or all of the recorded physical parameters.
  • physical parameters can be resolved for individual threads or the entirety of the multiplicity of threads, mean values, peak values, changes in the individual values with regard to location and/or time.
  • the method also includes comparing the recorded mechanical parameters with one or more threshold values and outputting a control signal if at least one of the recorded mechanical parameters is not in a predetermined range or does not correspond to a predetermined value.
  • individual weaving steps can be planned in advance or controlled in real time by means of the recorded physical parameters.
  • a control relates to a change in the weaving parameters such as: machine speed, movement sequences of shedding, etc. for the threads depending on the physical parameters recorded or an abort of the weaving process if threshold values are exceeded and the like.
  • the outputting of the control signal corresponds to the initiation of a predetermined, defined action on the part of the machines operated with the method and/or the operators of the machines operated with the method.
  • the principle can also be used in numerous other textile machines such as 3D weaving machines, circular weaving machines, on warping and warping machines for warp beam production, as well as on laying machines with parallel laying of different yarn sheets in the transverse, longitudinal and diagonal directions, and pultrusion systems etc..
  • In 1 1 is a perspective view of a sensor arrangement for detecting at least one physical parameter of a multiplicity of threads by means of a sensor plate according to an exemplary embodiment.
  • the individual sensors 11, 21, 31 are arranged in the form of a grid in the flat extension of the sensor plate 100.
  • the individual sensors 11, 21, 31 each include a thread passage 110 through which a thread 10, 20, 30 can be guided.
  • the individual sensors 11, 21, 31 are set up to detect one or more physical parameters of the thread 10, 20, 30 passed through them.
  • the individual sensors 11, 21, 31 can detect physical parameters of their associated thread 10, 20, 30 that differ from one another.
  • the individual sensors 11, 21, 31 can be set in such a way that they each detect or record the same physical parameter, for example checking the individual threads 10, 20, 30 with regard to their physical properties for homogeneity. This is particularly important if a uniform fabric is to be produced which should have approximately the same properties at almost all its points within a specified tolerance, but also for individual groups of threads with different properties or individual threads, for example of the same type with different bindings in the manufactured fabric.
  • the individual sensors 11, 21, 31 of the sensor plate 100 are preferably set up to detect or determine specific mechanical parameters of a thread 10, 20, 30 such as a tensile stress, a yarn count of the thread and the like when the thread 10, 20, 30 is stressed with a predetermined force.
  • FIG. 2 shows a top view of a sensor 41 arranged on a sensor plate 100 according to a preferred exemplary embodiment.
  • represents 2 represents a section of a sensor plate 100, which includes, for example, a grid-shaped array of sensors 11, 21, 31 or 41.
  • the illustrated sensor 41 has a movable element 43, which includes a thread bushing 110, through which a or thread 40 to be measured is guided.
  • a displacement of the movable element 43 sensors - in the present case for example, a strain gauge 42 - the change in position due to the shift relative to a previous position or to detect an absolute rest position of the movable element.
  • the change in position is brought about by a force exerted on the thread 40 , for example a tensile force, and can be converted into a physical parameter of the thread 40 .
  • the detection or measurement of the change in position can take place continuously or discretely, it being possible for the thread 40 to be evaluated in terms of location and/or time. As a result, one or more physical parameters can be determined for each length section of the thread 40 guided through the thread passage.
  • the change in position of the thread 40 can, for example, take place capacitively, for example by considering the thread bushing as a movable electrode and/or movable dielectric of a capacitor - not shown here, with a voltage-induced displacement or change in position resulting, for example, in a coverage ratio to other electrodes, which are arranged, for example, on the sensor plate.
  • the displacement is detected optically, for example with a light barrier which is mounted on the sensor plate 100—not shown here.
  • the sensor plate 100 has a printed circuit board 200 arranged parallel to it, which has openings or thread passages 210 assigned to the thread passages 110 of the individual sensors 11, 21, 31.
  • a particular advantage of integrating a printed circuit board 200 with or in the sensor plate 100 is that the individual sensors 41 or 11, 21, 31 can be connected and supplied with power completely via the printed circuit board 200, so that there are no cable strands between the Thread guide 110 guided threads 40 or 10, 20, 30 must be accommodated, which can lead to a knot.
  • a passage area of the thread passage 110 of the movable element 43 of the sensor 41 of the sensor plate 100 is dimensioned such that it forms a minimal sectional area with a passage area of the thread passage 210 of the printed circuit board 200, the dimension of which is many times greater than the cross-sectional area of the Thread guides 110, 210 carried out thread 40. This can be ensured that there is no unintentional thread breakage or thread break when detecting the physical parameters.
  • a bidirectional arrow which is on the side of the sensor in the 2 respectively 3 is drawn, should a possible Direction of movement of the movable element 43 of the sensor 41 are indicated.
  • the movable element 43 can be part of a mechanical, piezoelectric, magnetic, inductive or capacitive sensor.
  • the mechanical sensors 41 are designed with strain gauges 42, for example.
  • the sensor plate 100 can be connected detachably from the printed circuit board 200, it is in particular possible to use different sensor plates 100 that meet specific requirements for the threads 10, 20, 30, 40 to be measured to combine one or one and the same printed circuit board 200, the printed circuit board 200 comprising, for example, the computing device and the interfaces for providing the physical parameters, and the sensor plate 100 containing, for example, the sensors 11, 21, 31 or 41.
  • the flexibility when using the sensor plate 100 can be increased
  • the two plates 100 or 200 can be glued, soldered, welded, screwed or connected to one another in some other way.
  • the sensor plate 100 and the circuit board 200 are designed in one piece as a whole. Such an embodiment can be manufactured in a particularly robust and compact manner.
  • FIG. 4 A perspective view of a conventional condenser plate 300 is illustrated, in which the individual openings or thread passages 310 serve to bring together or concentrate several threads 10, 20, 30, 40, so that the individual distances between individual threads 10, 20, 30, 40 be greatly reduced so that they can be processed more easily together.
  • condenser plates 300 are used to wind a large number of threads 10, 20, 30, 40, which are unwound from a creel, for example, onto a warp beam.
  • the threads 10, 20, 30, 40 concentrated by means of the condenser plate 300 can be fed directly to the weaving process in a weaving machine.
  • FIG 5 in a perspective view an arrangement of a sensor plate 100 between two further thread guide devices 300, 400 which are designed as condenser plates.
  • the two condenser plates 300 and 400 can be of the same type or different from one another. Both condenser plates 300 and 400 respectively have thread passages 310 and 410 respectively therein.
  • the sensor plate 100 is offset in parallel between the two condenser plates 300 or 400 in such a way that the respective thread passages 110 of the sensor plate 100 or thread passages 310, 410 of the condenser plates 300, 400 form a three-point bearing which the threads 10, 20, 30, 40 are guided.
  • the individual thread passages 110, 310, 410 of the sensor plate 100 or condenser plates 300, 400 are arranged in such a way that they have an identical distribution pattern. This ensures that the individual threads 10, 20, 30, 40 run or are guided essentially parallel between the respective condenser plate 300 or 400 and the intermediate sensor plate 100, with the individual threads 10, 20, 30, 40 almost are exposed to identical measurement conditions.
  • Such a measuring arrangement is particularly suitable for threads of the same type that are to be recorded and/or tested for weaving a homogeneous fabric.
  • the arrangement is particularly suitable for realizing a device for testing the physical parameters of a large number of threads 10, 20, 30, 40.
  • FIG. 6 shows 6 a block diagram to illustrate a use of a sensor arrangement or such a sensor arrangement containing device according to a preferred embodiment.
  • One or more physical parameters of a multiplicity of threads 10, 20, 30, 40, in other words, a group of threads, are recorded via a sensor plate 100.
  • the device for detecting the physical parameters can, for example, comprise a three-point bearing according to the exemplary embodiment, comprising two thread guide devices 300, 400 and a sensor plate 100 arranged between them figure 5 be.
  • the parameters detected by the sensors 11 , 21 , 31 , 41 are made available or forwarded by the sensor plate 100 to a computing device 600 via an interface 150 .
  • the computing device 600 is set up to check and/or compare and/or otherwise mathematically link the individual physical parameters belonging to the respective threads 10, 20, 30, 40.
  • the computing device 600 includes means for assigning a respective time and/or a respective time to the individual physical parameters Assign location for each thread 10, 20, 30, 40 and / or for a variety of threads or the entire sheet of threads.
  • the physical parameters processed by means of computing device 600 can then be stored in a memory 610 .
  • a history or temporal and/or local resolution of the thread length of the individual thread can be stored for each individual thread 10, 20, 30, 40 and/or a large number of threads.
  • the history of the thread can then be used to use specific length ranges of the thread 10, 20, 30, 40 for different purposes or for different areas of a fabric to be produced.
  • an associated history for a later use of the threads 10, 20, 30, 40 could be created for a warp beam 700 comprising a plurality of threads 10, 20, 30, 40 in each case.
  • the history created for the warp beam 700 can later be supplied to a control device 620, with the aid of which a weaving process on a weaving machine 800 can be controlled.
  • the values determined by the computing device 600 can be supplied to a control device 620 for a weaving machine 800.
  • the control device 620 supplied with this can then, for example, control the deployment and use of individual threads 10, 20, 30, 40 in a weaving process on a weaving machine 800 in real time.
  • the weaving process in particular can be controlled easily and reliably, and the production of a fabric that corresponds to specific framework conditions can be guaranteed.
  • this makes it particularly easy to comply with quality controls, and on the other hand, documentation that may be required under certain circumstances can be provided for quality assurance.
  • the control device 620 can make event-related interventions in the weaving process.
  • the controller can also change the parameters in the weaving process in real time, for example: a machine speed, movement sequences of shedding and/or weft insertion, etc. for the threads as a function of the detected physical parameters or an abortion of the weaving process if threshold values are exceeded and the like. In this way, the production output and the output quality can be optimized immediately.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Quality & Reliability (AREA)
  • Looms (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)

Claims (14)

  1. Aménagement de capteurs permettant de détecter au moins une grandeur caractéristique physique d'une pluralité de fils (10, 20, 30, 40), aux caractéristiques suivantes:
    une plaque de capteur (100) avec une pluralité de passages de fil (110) qui sont disposés en forme de grille bidimensionnelle,
    dans lequel est associé à chaque passage de fil (110) au moins un capteur (11, 21, 31, 41) qui est conçu pour détecter l'au moins une grandeur caractéristique physique d'un fil (10, 20, 30, 40) qui est passé à travers le passage de fil (110);
    caractérisé par
    une carte de circuit imprimé (200) avec des trous qui est placée sur la plaque de capteur (100), où la carte de circuit imprimé (200) présente des structures de guidage destinées à établir un contact électrique avec les capteurs (11, 21, 31, 41).
  2. Aménagement de capteurs selon la revendication 1, dans lequel la grandeur caractéristique physique est une grandeur caractéristique provoquée par une force mécanique.
  3. Aménagement de capteurs selon la revendication 1 ou 2, dans lequel les capteurs (11, 21, 31, 41) présentent, chacun, un élément mobile (43), dans lequel les éléments mobiles (43) des capteurs (11, 21, 31, 41) sont mobiles dans la même direction par rapport à la plaque de capteur (100).
  4. Aménagement de capteurs selon la revendication 3, dans lequel l'élément mobile (43) est un manchon de guidage qui est monté de manière élastique dans le passage de fil (110) de la plaque de capteur (100).
  5. Aménagement de capteurs selon la revendication 3 ou 4, dans lequel les capteurs (11, 21, 31, 41) sont conçus, chacun, pour détecter une position de l'élément mobile (43).
  6. Aménagement de capteurs selon l'une des revendications précédentes, dans lequel au moins un des capteurs (11, 21, 31, 41) est un capteur mécanique et/ou capacitif et/ou inductif et/ou optique et/ou magnétique et/ou piézoélectrique et/ou résistif.
  7. Aménagement de capteurs selon l'une des revendications précédentes, dans lequel la carte de circuit imprimé (200) comporte des éléments de construction qui sont conçus pour détecter et/ou pour tester et/ou pour évaluer et/ou pour mettre à disposition par l'intermédiaire d'une interface (150) la grandeur caractéristique physique du fil (10, 20, 30, 40).
  8. Dispositif permettant de tester les grandeurs caractéristiques physiques d'une pluralité de fils (10, 20, 30, 40), dans lequel le dispositif présente les caractéristiques suivantes:
    un aménagement de capteurs selon l'une des revendications 1 à 7,
    un premier moyen de guidage de fil (300) avec des passages de fil respectifs pour les fils (10, 20, 30, 40) et un deuxième moyen de guidage de fil (400) avec des passages de fil (310, 410) respectifs pour les fils (10, 20, 30, 40) entre lesquels est disposé l'aménagement de capteurs de sorte que le premier et le deuxième moyen de guidage de fil (300, 400) et l'aménagement de capteurs (100) définissent un support à trois points pour les fils (10, 20, 30, 40).
  9. Dispositif selon la revendication 8, dans lequel les passages de fil pour les fils du premier et/ou du deuxième moyen de guidage de fil (300, 400) et les passages de fil (110) de la plaque de capteur (100) sont disposés de sorte que les fils (10, 20, 30, 40) s'étendant à travers les passages de fil (110, 310, 410) respectifs soient sensiblement parallèles.
  10. Dispositif selon la revendication 8 ou 9, dans lequel le premier et/ou le deuxième moyen de guidage de fil (300, 400) présente une plaque avec des passages de fil (310, 410), dans lequel passages de fil (110) de la plaque de capteur (100) et le premier et/ou le deuxième moyen de guidage de fil (310, 410) à travers lesquels doit être guidé le même fil (10, 20, 30, 40) ne se trouvent pas en alignement.
  11. Dispositif selon la revendication 10, dans lequel les passages de fil (310, 410) de la plaque du premier et/ou deuxième moyen de guidage de fil (300, 400) sont disposés dans la même grille bidimensionnelle que les passages de fil de la plaque de capteur (100).
  12. Procédé permettant de déterminer au moins une grandeur caractéristique physique d'un fil d'une pluralité de fils à l'aide d'un dispositif selon l'une des revendications 8 à 11, qui présente les caractéristiques suivantes consistant à:
    détecter la grandeur caractéristique physique du fil (10, 20, 30, 40) passé à travers le passage de fil (110, 310, 410) respectif au moyen du capteur associé (11, 21, 31, 41).
  13. Procédé selon la revendication 12, qui présente par ailleurs le fait de mémoriser la grandeur caractéristique physique détectée par les capteurs (11, 21, 31, 41).
  14. Procédé selon la revendication 12 ou 13, qui présente par ailleurs le fait de comparer les grandeurs caractéristiques physiques détectées avec une ou plusieurs valeurs de seuil et de sortir un signal quand au moins l'une des grandeurs caractéristiques physiques détectées ne se situe pas dans une plage prédéterminée.
EP20185074.0A 2019-07-16 2020-07-09 Agencement de capteur permettant de détecter au moins une caractéristique physique d'une pluralité de fils Active EP3767019B1 (fr)

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DE102019210474.6A DE102019210474A1 (de) 2019-07-16 2019-07-16 Sensor-Anordnung zum Erfassen zumindest einer physikalischen Kenngröße einer Vielzahl von Fäden

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Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0352852B1 (fr) * 1988-07-25 1992-09-09 Picanol N.V. Dispositif d'alimentation de fils de trame dans les métiers à tisser
US5205327A (en) * 1991-05-15 1993-04-27 Sulzer Brothers Limited Electrostatic weft detector
SE9900791D0 (sv) * 1999-03-03 1999-03-03 Iro Patent Ag Method for monitoring weft yarn run/stop conditions
DE10232827A1 (de) * 2002-07-19 2004-02-05 Temco Textilmaschinenkomponenten Gmbh Vorrichtung und Verfahren zur Überwachung einer Vielzahl nebeneinander angeordneter Fäden
DE102010019239A1 (de) * 2010-05-03 2011-11-03 Honigmann Industrielle Elektronik Gmbh Zugkraftmesseinrichtung
DE102010047014A1 (de) * 2010-09-30 2012-04-05 Lindauer Dornier Gmbh Ermittlung der Fadenzugkräfte in mehreren Schussfäden einer Webmaschine
CN205839244U (zh) * 2016-06-22 2016-12-28 杭州世佳布艺有限公司 用于分条整经机的断经自测集纱架
CN208948567U (zh) * 2018-06-26 2019-06-07 杨美菊 一种可实时监测张力的纱架装置

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