EP2034059B1 - Procédé de détermination du poids lineaire d'un ruban de fibres et machine de préparation de filature - Google Patents

Procédé de détermination du poids lineaire d'un ruban de fibres et machine de préparation de filature Download PDF

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Publication number
EP2034059B1
EP2034059B1 EP20080163452 EP08163452A EP2034059B1 EP 2034059 B1 EP2034059 B1 EP 2034059B1 EP 20080163452 EP20080163452 EP 20080163452 EP 08163452 A EP08163452 A EP 08163452A EP 2034059 B1 EP2034059 B1 EP 2034059B1
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EP
European Patent Office
Prior art keywords
preparation machine
sliver
spinning preparation
weight
fibre sliver
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Active
Application number
EP20080163452
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German (de)
English (en)
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EP2034059A3 (fr
EP2034059A2 (fr
Inventor
Michael Ueding
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Rieter Ingolstadt GmbH
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Rieter Ingolstadt GmbH
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Publication of EP2034059A3 publication Critical patent/EP2034059A3/fr
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Classifications

    • 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
    • D01H13/26—Arrangements facilitating the inspection or testing of yarns or the like in connection with spinning or twisting
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G31/00—Warning or safety devices, e.g. automatic fault detectors, stop motions
    • 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
    • D01H13/14—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements
    • D01H13/24—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements responsive to delivery of a measured length of material, completion of winding of a package or filling of a receptacle
    • 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
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine

Definitions

  • the invention relates to a method for determining the length-related band weight of a sliver on a spinning preparation machine, in particular a section, wherein the sliver is deposited after leaving the spinning preparation machine, and a corresponding spinning preparation machine with at least one output for a sliver and a control device for controlling the spinning preparation machine.
  • Spinning preparation machines in particular stretching, are used, inter alia, to produce as uniform a sliver as possible from a submitted textile material.
  • these usually have a, usually regulating, drafting, which serves to delay the submitted textile material.
  • the drafting system itself has for this purpose a number of drafting elements, for example in the form of a plurality of roller pairs arranged one behind the other, between which the textile material is clamped along the respective so-called clamping lines in the transverse direction of the strip. Since the pairs of rollers have different peripheral speeds which increase in the direction of travel of the strip, the textile material consisting of one or more slivers is stretched and at the same time uniformed.
  • a method for determining the length-related band weight of a sliver on a spinning preparation machine, wherein the sliver is stored after leaving the spinning preparation machine, is out DE4029172 A1 known.
  • the weight and the length of the deposited sliver determined and from the length-related band weight of the sliver is determined.
  • the length-related band weight can be calculated directly from the two mentioned values, without having to consider further parameters.
  • the determination of the length of the deposited sliver can be, for example, by already existing on the spinning preparation machine
  • At least one storage device is used to receive the discarded sliver.
  • Such devices are used to catch the sliver leaving the spinning preparation machine. These are usually used when the sliver is fed to another spinning machine, for example a rotor spinning machine, and has to be transported from the spinning preparation machine to this spinning machine.
  • a container in particular a sliver can, is used as storage device.
  • a plate-shaped storage device it is also possible to place the sliver on a plate-shaped storage device.
  • containers such as, for example, rectangular or substantially round sliver cans, in which the sliver is generally laid down in a translatory or rotational manner, have proven successful.
  • the method according to the invention is characterized in that the weight of the sliver is determined from the difference between the empty weight of the depositing device and the total weight of the depositing device, including the fiber sliver stored therein. This results in a direct manner, the total weight of the deposited sliver without further calculations and without the inclusion of other parameters.
  • the empty weight of the storage device and / or the total weight of the storage device including the deposited sliver is determined by weighing.
  • the spinning preparation machine is assigned, advantageously in the region of its sliver exit, a balance whose measured values can be transmitted directly or indirectly to a corresponding control and / or storage device.
  • the empty weight of the depositing device and / or the total weight of the depositing device including the deposited sliver in the area of the spinning preparation machine is determined on which the sliver is stored. This eliminates the transport of the storage device to a separate location. The weight can thus be determined immediately after the fiber sliver has been deposited, so that the measured values are available as quickly as possible and can be used, for example, for controlling the spinning machine.
  • the total weight of the storage device including the fiber sliver stored therein determined batchwise becomes.
  • the latter procedure provides for each storage device, which is replaced in practice after filling by a new, empty storage device, a corresponding length-related band weight of the deposited sliver.
  • the achievable percent accuracy is substantially increased over the prior art sampled methods by the large amount of weighed material.
  • the mean values of the sliver weights of a plurality of storage devices can also be determined here, so that the average length-related band weight is hardly influenced by only a short-term fluctuation thereof.
  • the total weight of the storage device including the fiber sliver stored therein is determined continuously. This may result in higher fluctuations in the determined length-related band weight. However, measurements are continuously obtained in this way so that changes in the length-related band weight of the produced sliver can be detected more quickly and used directly for controlling the spinning machine.
  • the length-related band weight is used for monitoring and / or adjusting the spinning preparation machine, since this variable provides direct information about the quality, in particular the uniformity, of the produced sliver. If temporal changes of this value are detected, then this is an indication that interventions in the machine parameters are necessary, whereby the determined values of the length-related band weight can be used as a basis for the approximation of the corresponding parameters.
  • the length-related band weight is compared with at least one desired value and the difference used for monitoring and / or adjustment of the spinning preparation machine.
  • This setpoint results in particular from the length-related band weight that the produced sliver should have, possibly taking into account corresponding lower or upper limits.
  • the length-related band weight of a sliver passing through the spinning preparation machine can be changed from an initial value at the input to a desired value at the end of the spinning machine. While during the drawing a predetermined and usually continuous length distortion of the sliver takes place, this delay is constantly adjusted in the regulation of the nature of the sliver at the inlet or outlet of the spinning preparation machine. For this purpose, this usually has numerous sensors, the measured values are used for the constant adjustment of the delay.
  • the length-related band weight represents the fundamental reference value for the stretching or regulation process, so that deviations of this value from a nominal value allow direct conclusions to be drawn about the correct operation of the spinning preparation machine. If deviations are detected, rapid intervention in the control or regulation of the spinning machine ensures reliable correction of the corresponding process parameters of the spinning machine, such as the rotational speed of the delay cylinder or the delivery speed of the sliver. If the difference between the length-related band weight and the predetermined target value exceeds a certain amount, then it is also possible to completely switch off the spinning machine in order to avoid a faulty production or damage of certain components.
  • the spinning preparation machine according to the invention is characterized in that it is associated with at least one first weighing device for weighing a receiving device for the sliver leaving the spinning preparation machine.
  • a large number of known weighing devices such as, for example, level scales or even scales, on which the receiving device for the sliver is suspended, can be used.
  • the control device is connected to at least one sensor of the spinning preparation machine, which serves to determine the sliver length of the sliver
  • the at least one weighing device in the area the output of the spinning preparation machine is arranged.
  • a particularly rapid determination of the sliver weight is possible, so that in case of deviations from a desired value can be acted upon quickly on the corresponding parameters of the spinning preparation machine.
  • the spinning preparation machine is assigned in the region of its output an automatic changing device for changing the receiving devices. This allows a controlled exchange of the receiving devices in each case after the storage of a predefined sliver amount or after reaching a certain degree of filling.
  • the changing device has a feed region and a removal region for the receiving device.
  • the feed area serves primarily for the intermediate storage of empty receiving devices, so that after filling a receiving device at any time a new, empty receiving device is available.
  • the filled receiving device is thereby transferred from the changing device in the removal area and can finally be transported by a corresponding transport device in the effective range of another spinning machine, such as a rotor spinning machine.
  • a first weighing device is assigned to the feed region and a second weighing device is assigned to the removal region.
  • a first weighing device is assigned to the feed region and a second weighing device is assigned to the removal region.
  • the tape storage can be continued only when the filled storage device has been removed from the area of the sliver exit and the empty weight of the next storage device is determined, the determination of the empty weight can already be done in the region of the feed. If the filled storage device is transferred by the automatic changing device in the area of the sliver exit, the empty weight of the storage device is already determined, so that the filing of the sliver can be continued immediately after the change process.
  • springs are usually used, which press the deposited fiber material against the tray to produce an orderly storage image of the deposited fiber slivers, which is required for a high quality sliver.
  • the springs used have large tolerances that would adversely affect the outcome of the weighing process. Therefore, the use of a weighing device before and a weighing device after the point at which the sliver is stored, of particular advantage, because thereby the tolerances of the spring forces can be completely eliminated and the required accuracy can be achieved.
  • the weighing device is also in communication with the control device of the spinning preparation machine. This enables a quick acquisition and processing of the measured values determined. These can finally be used for checking or setting individual parameters of the spinning preparation machine and / or also stored.
  • the weighing device can be directly, for example via cable and / or radio links with the spinning machine in conjunction.
  • indirect methods are also conceivable, for example equipping the storage devices with RFID chips, on which the corresponding empty weight of the storage device can be stored.
  • the spinning preparation machine has at least one default field for warping the sliver.
  • the length-related band weight of the produced sliver represents the decisive parameter for the assessment of the correct functioning of the spinning preparation machine.
  • the monitoring of this parameter is particularly important in these spinning machines of extreme importance, so that its inventive determination considerable simplifications both in terms of their Monitoring as well as their regulation or control brings with it.
  • the default field is a regulatory default field.
  • the sliver is not stretched only by a constant factor.
  • the most varied physical sizes of the sliver, in particular its length-related band weight, are taken into account for the continuous monitoring and adjustment of the drawing factor, so that a particularly uniform sliver can be produced.
  • control device communicates with at least one component of the spinning preparation machine.
  • This can be, for example, the drafting rollers of the drafting system, the input and / or output roller pairs of the spinning machine or particularly advantageous their corresponding drive devices.
  • This makes it possible to act directly on the components of the spinning machine on the basis of the determined length-related band weight of the deposited sliver, which directly affect this parameter.
  • a simple possibility is opened to control or regulate the spinning preparation machine in such a way that the length-related band weight determined at the exit corresponds to the respective predetermined desired value.
  • control device is in communication with at least one sensor of the spinning preparation machine.
  • individual components of the spinning preparation machine can also be monitored or calibrated for the respective sensors of the spinning machine, the length-related weight of the band being used as the basic size.
  • the sensor advantageously serves to determine the fiber sliver thickness, the sliver mass, the sliver length, the delay intensity of the default field, the regulation intensity of the default field, and / or the delivery speed of the spinning preparation machine. Since all these parameters are reflected in the length-related band weight of the sliver produced, this size can be used to check or calibrate the said sensors.
  • FIG. 1 Figure 1 shows a route 1 as an example of a prior art spinning preparation machine.
  • the schematically illustrated section 1 six individual fiber strands FS are presented side by side.
  • the fiber strands FS are shown viewed from above, while the route 1 is shown as such in a side view.
  • a funnel 2 is arranged, which compresses the fiber strands FS into a single sliver FB.
  • a first measuring device 3 which generates a first measuring signal S1 which represents, for example, the length-specific mass of the sliver FB guided therethrough, the now compressed sliver FB is guided into a drafting system 4, which forms the core of the route 1.
  • the drafting unit 4 has an input roller pair 5a, 5b, a middle pair of rollers 6a, 6b and an output or delivery roller pair 7a, 7b, which rotate in each case in this order increased peripheral speeds.
  • the sliver FB which is spread nonwoven in the drafting device 4 is warped in accordance with the ratio of the peripheral speeds.
  • the pair of input rollers 5a, 5b and the middle pair of rollers 6a, 6b form the so-called Vorverzugsfeld, the middle pair of rollers 6a, 6b and the delivery roller pair 7a, 7b the so-called main drafting field.
  • both the pre-delay and the main delay are constant during the drafting process.
  • a balancing out of variations in the mass of the sliver FB takes place by changing the draft height.
  • the main distortion is variable, since the main distortion is usually greater than the pre-delay, so that a more accurate balancing of thickness variations of the sliver FB can be done.
  • the pressure bar 8 which is additionally arranged in the main drafting zone, ultimately deflects the fiber sliver FB and thus ensures better guiding of the fibers.
  • the warped sliver FB is then deflected by means of a Umlenkoberwalze 9 and fed to a belt forming device 10.
  • the belt forming device 10 is designed as a funnel and serves to compress the sliver FB.
  • At the exit of the funnel is another Measuring device 11 is arranged, which has a measuring space 12, in which the mass of the guided fiber sliver FB is detected. This mass or thickness is converted by a sensor electronics, not shown, into a measuring signal S2.
  • the measured sliver FB is subsequently drawn off by means of a calender roller pair 13a, 13b and fed to a can tray 14.
  • the can tray 14 has a rotating about its vertical axis turntable 15 with a band channel 16 for storing the sliver FB in a sliver can 17.
  • the spinning can 17 itself is translationally moved by means not shown in the case of a rectangular spinning can and in the case of a round spinning can with respect to the fixed turntable 15. In this way, the entire interior of the spinning can 17 can be filled with deposited sliver FB. If a spinning can 17 is completely filled, then it can be manually replaced by an operator or by means of a changing device 18 shown only schematically against an empty sliver can 17.
  • the route 1 furthermore has a control device 19, which in particular controls the rotational speed of the roller pairs of the drafting system 4. For this purpose, it acts on the drives of the roller pairs, not shown. Furthermore, the control device 19 may be designed to control the changing device 18. As usual, the control device 19 is connected to an operating device 20, for example with a keyboard, as well as to an output unit 21, for example a screen.
  • the route 1 has a quality monitoring system 22, which is designed to monitor the quality of the produced fiber sliver FB.
  • the first measuring device 3 comprises a measuring space 23 and two scanning disks 24, 25, of which the scanning disk 24 is stationary and the scanning disk 25 is pressed against the scanning disk 24 with pressure and can be deflected perpendicular to its axis of rotation.
  • the deflections of the Abtastusion 25 here are a measure of the mass of the sliver FB.
  • the deflection is detected for example with an inductive sensor, not shown, which generates the measurement signal S1.
  • the measuring signal S1 is then used by the control device 19 to change the initial and / or main draft of the drafting system 4. As a result, fluctuations in the mass of the sliver FB can be adjusted.
  • Such a method is also referred to as open-loop control of the drafting system 4.
  • the measuring device 11 at the outlet of the drafting system 4 comprises a measuring space 12 through which the sliver FB is guided and measured without contact.
  • the use of a non-contact sensor is particularly advantageous here, since the speed of the running fiber sliver FB at the outlet of the drafting system 4 is naturally much higher than on the inlet side.
  • the measurement signal S2 which is generated by the measuring device 11 by means of a sensor electronics, not shown, is evaluated by means of the quality monitoring system 22. In particular, the average thickness of the sliver FB and the unevenness remaining in the sliver FB are detected.
  • a signal can be transmitted from the quality monitoring system 22 to the control device 19 and the machine can be stopped. Also, for example via the output unit 21 - a message to the operator.
  • the measuring signal S2 of the measuring device 11 at the outlet of the drafting system 4 is often transmitted directly to the control device 19.
  • a shutdown of the spinning preparation machine due to lack of quality can be done autonomously by the controller 19.
  • the measuring signal S2 can be used to control the drafting of the drafting device 4.
  • the thus realized closed-loop control is particularly suitable for the adjustment of long-term deviations in one direction from the setpoint.
  • Measuring devices of spinning preparation machines are therefore adjusted or adjusted in complex manual procedures.
  • test specimens of known thickness are presented manually in the case of mechanically scanning measuring devices, and the corresponding measuring signals of the measuring devices are compared with a desired value in accordance with a nominal characteristic curve. This is usually done with a variety of test sizes of different thickness, which cover the entire measuring range of the respective measuring device.
  • the respective measuring device is adjusted or readjusted.
  • measuring results of the measuring device are subsequently checked in the laboratory. In case of deviations, the sensor characteristic is changed in iterative steps until a corresponding agreement of the measurement results of the sensor and the laboratory measurement results occurs.
  • Such adjustment methods can be carried out only in relatively large time intervals because of the relatively high cost.
  • temporally rapidly variable influencing variables on corresponding measurement signals can not be detected in this way and thus conditional distortions can not be corrected.
  • Particularly noteworthy here are distortions of the measuring signals, which are caused by a change in the temperature of the measuring device.
  • distortions of the measurement results can be done by adhering in the measuring device soiling. Falsifications of the measurement results due to temperature influences or Dirt occurs more or less pronounced in all known measuring methods.
  • FIG. 2 shows a schematic representation of a route 1, at the sliver exit 26, a weighing device 27 is arranged. This is used to determine the weight of the sliver FB, which, as described above, after leaving the route 1 by means of a turntable 15 in a storage device, for example in the form of a spinning can 17, is stored (see FIG. 1 ).
  • an empty sliver can 17 is transferred from a supply area 30 to the weighing device 27, which serves to determine the empty weight of the sliver can 17. If the sliver can 17 is filled to a predetermined degree of filling with sliver FB, the storage device is weighed again. From the difference between empty weight and the total weight of sliver can 17 and stored fiber sliver FB finally results in the weight of the deposited sliver FB.
  • the distance 1 in the region of its sliver exit 26 has a device, not shown, for determining the length of the sliver FB deposited in the sliver can 17. While own sensors can be used for this purpose, it is also possible to determine the length of the sliver FB by registering the number of increments in the rotation of the calender rolls 13a, 13b (see FIG FIG. 1 ) to investigate.
  • the length-related band weight is obtained.
  • This value is calculated, for example, directly by the control device 19 of the section 1 and serves, as described below, for checking and / or adjusting the spinning preparation machine, in particular that in FIG FIG. 1 described drafting 4.
  • the weighing device 27 is connected to the control device 19 via a corresponding wiring 28.
  • FIG. 3 also shows a plan view of a route 1 with a schematically illustrated automatic changing device 18, which may for example have a turnstile 29, with which the spinning cans 17 can be moved.
  • the changing device 18 also has a feed area 30 for storing empty sliver cans 17 and a removal area 31 for the sliver cans 17 filled with sliver FB.
  • Both the feed region 30 and the removal region 31 are each assigned a weighing device 27.
  • This has the advantage that the empty weight of the spinning cans 17 can already be determined before the spinning can 17 reaches the area of the sliver exit 26 of the route 1. Once an empty sliver can 17 is displaced by means of the changing device 18 for filling in this area, the empty weight is already known and the depositing process of the sliver FB can be continued immediately after the change process of the spinning cans 17.
  • the sliver can 17 filled with fiber sliver FB is finally weighed again in the removal region 31 of the changing device 18 by the second weighing device 27, so that the difference between the empty weight and the weight of the sliver can 17 including the sliver FB deposited therein determines the actual weight of the sliver FB deposited can be.
  • both weighing devices 27 are advantageously connected to the control device 19 of the section 1, so that the determined values can be evaluated directly. After comparing these values with a predetermined value can finally be made with the help of the control device 19 relevant machine parameters of the route 1 and the corresponding drafting system 4.
  • the speeds of the input roller pair 5a, 5b, the middle roller pair 6a, 6b, the pair of delivery rollers 7a, 7b and / or the calender roller pair 13a, 13b regulate, so that the delay or the regulation of the drafting system 4 are adjusted can that the determined length-related band weight ultimately corresponds to the corresponding target value.
  • the length-related band weight provides conclusions on the functionality of in FIG. 1 shown sensors, such as the Abtastusionn 24, 25 at the entrance of the route 1 or the measuring device 11 at the output.
  • sensors such as the Abtastusionn 24, 25 at the entrance of the route 1 or the measuring device 11 at the output.
  • a calibration of these sensors based on the length-related weight band is possible, so that this size can serve as a universal reference for all determined by the individual sensors parameters.
  • spinning preparation machine not only records distances but all spinning preparation machines in which the length-related band weight of a sliver constitutes an important parameter for controlling and / or monitoring the spinning preparation machine.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)

Claims (13)

  1. Procédé de détermination du poids linéaire d'un ruban de fibres (FB) à une machine de préparation de filage, particulièrement une étireuse (1), dans lequel le ruban de fibres (FB) est déposé après avoir quitté la machine de préparation de filage, caractérisé en ce que le poids et la longueur du ruban de fibres déposé (FB) sont déterminés et, sur la base du résultat, le poids linéaire du ruban de fibres (FB) est déterminé, sachant que le poids du ruban de fibres déposé (FB) est déterminé à partir de la différence entre le poids à vide d'un dispositif de réception et le poids total du dispositif de réception avec le ruban de fibres déposé (FB), et sachant que le poids à vide du dispositif de réception et/ou le poids total du dispositif de réception avec le ruban de fibres déposé (FB) est/sont déterminé(s) à l'aide d'une bascule attribuée à la machine de préparation de filage, dont les valeurs mesurées sont transmises directement ou indirectement à un dispositif de commande (19) de la machine de préparation de filage, sachant que le dispositif de commande (19) est en relation avec au moins un capteur de la machine de préparation de filage, qui sert à la détermination de la longueur du ruban de fibres.
  2. Procédé selon la revendication précédente, caractérisé en ce qu'un contenant, en particulier sous la forme d'un pot de filature (17), est utilisé en tant que dispositif de réception.
  3. Procédé selon l'une ou plusieurs des revendications précédentes, caractérisé en ce que le poids à vide du dispositif de réception est déterminé avant que le ruban de fibres (FB) ne soit déposé.
  4. Procédé selon l'une ou plusieurs des revendications précédentes, caractérisé en ce que le poids à vide du dispositif de réception et/ou le poids total du dispositif de réception avec le ruban de fibres déposé (FB) est/sont déterminé(s) dans la zone de la machine de préparation de filage dans laquelle est déposé le ruban de fibres (FB).
  5. Procédé selon l'une ou plusieurs des revendications précédentes, caractérisé en ce que le poids total du dispositif de réception avec le ruban de fibres (FB) qui y est déposé est déterminé par charge ou de manière continue.
  6. Procédé selon l'une ou plusieurs des revendications précédentes, caractérisé en ce que le poids linéaire du ruban de fibres est utilisé pour la surveillance et/ou le réglage de la machine de préparation de filage.
  7. Procédé selon l'une ou plusieurs des revendications précédentes, caractérisé en ce que le poids linéaire du ruban de fibres est comparé avec au moins une valeur de consigne et la différence est utilisée pour la surveillance et/ou le réglage de la machine de préparation de filage.
  8. Procédé selon l'une ou plusieurs des revendications précédentes, caractérisé en ce qu'un étirage et/ou une régulation du ruban de fibres (FB) est/sont prévu(s)(e) par la machine de préparation de filage et que la différence est utilisée pour la surveillance et/ou le réglage de l'étirage et/ou de la régulation et/ou pour la surveillance et/ou le réglage du dispositif d'analyse sensorielle pour le contrôle de l'étirage et/ou de la régulation.
  9. Machine de préparation de filage, particulièrement une étireuse (1), avec au moins une sortie (26) pour un ruban de fibres (FB) et un dispositif de commande (19) pour la commande de la machine de préparation de filage, caractérisée en ce qu'un premier dispositif de pesage (27) au moins est attribué à la machine de préparation de filage, particulièrement dans la zone de la sortie (26) de la machine de préparation de filage, pour le pesage d'un dispositif de réception pour le ruban de fibres (FB) quittant la machine de préparation de filage, sachant que le dispositif de pesage détermine le poids du ruban de fibres déposé (FB) à partir de la différence entre le poids à vide d'un dispositif de réception et le poids total du dispositif de réception avec le ruban de fibres déposé (FB), et sachant que le poids à vide du dispositif de réception et/ou le poids total du dispositif de réception avec le ruban de fibres déposé (FB) est/sont déterminé(s) à l'aide d'une bascule attribuée à la machine de préparation de filage, dont les valeurs mesurées sont transmises directement ou indirectement à un dispositif de commande (19) de la machine de préparation de filage, et sachant que le dispositif de commande (19) est en relation avec au moins un capteur de la machine de préparation de filage, qui sert à la détermination de la longueur du ruban de fibres.
  10. Machine de préparation de filage selon la revendication précédente, caractérisée en ce qu'un dispositif de changement automatique (18) est attribué à la machine de préparation de filage dans sa zone de sortie (26), particulièrement avec une zone d'amenée (30) et une zone de prélèvement (31) pour le dispositif de réception, pour le changement du dispositif de réception.
  11. Machine de préparation de filage selon la revendication précédente, caractérisée en ce qu'un premier dispositif de pesage (27) est attribué à la zone d'amenée (30) et un second dispositif de pesage (27) est attribué à la zone de prélèvement (31).
  12. Machine de préparation de filage selon l'une ou plusieurs des revendications 9 à 11 précédentes, caractérisée en ce que la machine de préparation de filage présente au moins une zone d'étirage, en particulier régulatrice, pour l'étirage du ruban de fibres (FB).
  13. Machine de préparation de filage selon l'une ou plusieurs des revendications 9 à 12 précédentes, caractérisée en ce que le dispositif de commande (19) est en relation avec au moins un composant de la machine de préparation de filage, tel qu'un capteur, en particulier un capteur pour la détermination de l'épaisseur du ruban de fibres, de la masse du ruban de fibres, de l'intensité d'étirage de la zone d'étirage, de l'intensité de régulation de la zone d'étirage et/ou de la vitesse de livraison de la machine de préparation de filage.
EP20080163452 2007-09-10 2008-09-02 Procédé de détermination du poids lineaire d'un ruban de fibres et machine de préparation de filature Active EP2034059B1 (fr)

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CN102747473A (zh) * 2012-07-17 2012-10-24 南通市苏中纺织有限公司 一种自控式调速调压的粗纱机
CN102735583A (zh) * 2012-07-19 2012-10-17 先进储能材料国家工程研究中心有限责任公司 无损连续监测带状材料密度异常的装置和方法
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CN101387021A (zh) 2009-03-18
EP2034059A3 (fr) 2011-07-27
DE102007042670A1 (de) 2009-03-12
EP2034059A2 (fr) 2009-03-11
CN101387021B (zh) 2011-10-19

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