EP1149196B2 - Melange de composants fibreux - Google Patents

Melange de composants fibreux Download PDF

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Publication number
EP1149196B2
EP1149196B2 EP99966838A EP99966838A EP1149196B2 EP 1149196 B2 EP1149196 B2 EP 1149196B2 EP 99966838 A EP99966838 A EP 99966838A EP 99966838 A EP99966838 A EP 99966838A EP 1149196 B2 EP1149196 B2 EP 1149196B2
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EP
European Patent Office
Prior art keywords
weighing
conveying speed
weight
process according
cycle
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German (de)
English (en)
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EP1149196A1 (fr
EP1149196B1 (fr
Inventor
Franz Höck
Peter Engelhardt
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Temafa Maschinenfabrik GmbH
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Temafa Maschinenfabrik GmbH
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G13/00—Mixing, e.g. blending, fibres; Mixing non-fibrous materials with fibres
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G23/00—Feeding fibres to machines; Conveying fibres between machines
    • D01G23/02—Hoppers; Delivery shoots
    • D01G23/04—Hoppers; Delivery shoots with means for controlling the feed

Definitions

  • the invention relates to a method and an apparatus for mixing fiber components by means of weighing box feeder, which is equipped with a weighing container and Vorhellraum, the weighing container is separated from the upstream Vorhellraum by a controllable flap, and after weighing the material from the weighing container on a Mixed tape is dropped.
  • weighing boxes are used to meter the individual fiber components, in which fiber bales are fed via a feed table and a subsequent conveyor belt to a rising needle belt from which the needle belt loosens fiber material in pancakes and conveys it up against a back roller.
  • a subsequent knocking roller leads the material loosened in this way to a weighing container.
  • the weighing of the fibers according to this known discontinuous process is usually carried out so that the weighing hopper is charged with two different material feed rates, wherein the feed rate of the needle belt speed is determined.
  • a coarse dosage with high needle belt speed to fill the weighing container in the shortest possible time is usually carried out.
  • this fast filling is carried out only to a certain degree of filling
  • the needle belt is switched to low speed, and it follows with this low speed, the fine dosage until the desired final weight is reached When this second limit is reached the needle band stopped. Then the exact weight is determined by the balance.
  • the weighing container is emptied onto a so-called mixed belt and tared, i. the weighing device is set exactly to the zero point.
  • the weighing device is prepared for the next weighing, and the needle belt is turned on again to first perform the coarse filling for the next weighing process at high speed.
  • the material-specific properties play a major role in the weighing of fibers. It is therefore necessary to set all speeds and limit values to these material-specific properties.
  • the loading of the filling space in front of the needle band also has an influence on the parameters to be set.
  • Fiber mixing plants are usually operated with several weighing containers and with different raw materials. The slowest weighing determines the throughput of the entire production plant. In order to achieve the desired accuracies and throughputs in the described weighing process, it is necessary that the plant is adjusted by operating personnel with good process knowledge and experience. The setting values must be determined empirically for each fiber type, which is expensive
  • a device for dosing of filling material for filling of packages is known.
  • the filling of the weighing container takes place via two stages with a coarse dosage and a fine dosage.
  • the filling material is passed via a first supply line into an antechamber, which is provided with a shut-off device to the weighing hopper, wherein a volumetric dimension of the filling material is provided in the prechamber.
  • the filling of the pre-chamber is terminated and emptied their content in the weighing bins.
  • Fine dosing via a second conveyor line.
  • the antechamber can be refilled via the first conveyor line, so that a shortening of the filling speed for the weighing container occurs.
  • a disadvantage of this known device is that two separate filling lines are necessary for the fine filling and for the priming, so that for each filling a corresponding flap control and a corresponding feeder is required. The device is therefore relatively expensive.
  • the conveying speed of the first conveying means is controlled as a function of the mass of the material delivered to the second conveying means.
  • the problem with non-continuous weighing to mix fiber components, yet to achieve continuous material delivery and opening thereof, is not present in this known device.
  • the known method and the device provided for its implementation is also not suitable to assemble different fiber components according to predetermined proportions by weight for further processing.
  • US Pat. No. 4,766,966 discloses an electronic control program for filling a weighing container via a prefilling space in as short a time as possible, but avoiding weight excesses caused by the rapid filling.
  • the feeding of the material to be weighed into the weighing cavity is therefore controlled by a different opening width of the outlet flaps from the prefill container.
  • the known device is not apparent. By controlling the discharge flap opening there is a risk in fiber material that this gets stuck on the not completely open flaps and thus it comes to irregularities and incomplete filling of the weighing container.
  • FIG. 1 shows a weighing feeder schematically in its construction.
  • the bales 1 ', 1 ", 1"' are fed via the feed table 2 and its conveyor belt 3 to the needle belt 4, which dissolves from the bales fed and promotes upwards against the back wiper roller 5.
  • the back stripper 5 is adjustably mounted in its distance from the needle belt 4 and rotates in the opposite direction to the conveying direction of the needle belt 4. Too large amounts of fiber rising with the needle belt 4 are not allowed to pass through this distance of the back strip roller 5, but retained by this.
  • the conveyor belt 3 of the feed table 2 and the needle belt 4 are drivingly connected to each other.
  • a continuously variable drive 41 is provided, so that the needle belt can run at any given by a control device 41 conveying speed.
  • the high-speed rotating knocking roller 6 connects, which strikes the fiber material from the needle belt 4 and thereby opens.
  • the liberated by the knock-off roller 6 fibers or fiber flakes are conveyed into a Vorhellraum 8, which can be closed by flaps 9 and shut off against the weighing container 10.
  • a fan 7 ensures the dust extraction.
  • a pressure roller 11 is arranged to compress the fiber material into a uniform wadding for feeding into a mixing opener 13.
  • FIG. 7 shows a weighing feeder with an enlarged prefilling space 80. Parts of this weighing feeder with the same function are also designated the same as in FIG. 1, so that the description of the weighing feeder according to FIG. 1 also applies to FIG.
  • a large pre-filling space 80 is arranged, which has up to about 80% of the capacity of the weighing container 10. This enlarged prefilling space serves to do this during the settling time to receive the balance and the discarding of the contents of the weighing container 10 supplied on the conveyor belt 12 material so that the needle belt 4 can promote fiber material without stopping.
  • measuring devices 13 are arranged on both sides. Preferably, these measuring devices consist of light barriers.
  • FIG. 2 shows a system with three weighing box feeders I, II and III, each drop a component on the mixing belt 12.
  • the ejection from the weighing container 10 takes place in each case so that the shares to be mixed are stacked on top of each other and at the same time reach the collection in the mixing opener 13. That First, the weighing feeder III throws its component portion onto the mixing belt 12, which transports this layer to the weighing feeder II. There, from the weighing container 10, the next component is placed on the position of the weighing feeder III and both transported further to the weighing feeder I, which then applies the third component to the two layers. All three layers run at the end of the conveyor belt 12 under a pressure roller 11 and are fed to the mixing opener 13, which continuously mixes the layer packs and emits through the pipe 14 to a mixing chamber.
  • the loading of the weighing container 10 is carried out in a known device in such a way that in a first phase, the material transport runs fast without weight control, i. the shut-off flaps 9 are closed and the material collects in the pre-filling chamber 8. During this time, the bottom flap of the weighing container 10 closes after discarding the last weighing, and there is a balance when the bottom flap is closed. In a second phase, the material transport is still running fast and without weight control, but the butterfly valve 9 opens and throws the accumulated material in the weighing container 10, the bottom flap is closed.
  • a third phase now follows a filling of the weighing container 10 with rapid material transport until at a certain level, which is less than the target weight, a signal is triggered, which switches the material transport to a low speed, with the rest of the filling takes place on the final weight
  • the material transport is switched off and the butterfly valves 9 are closed. There is a settling time of about 2 seconds for final weight measurement.
  • the bottom flap is opened and the weighing is dropped onto the mixing belt 12.
  • the pre-filling serves to increase the production capacity by reducing the downtime of the material transport, since with closed butterfly valve 9 in the first two phases already the material transport can use again.
  • the Vorhellmaschine according to the known method is not applicable if the material transport speed is subject to strong fluctuations.
  • the desired sequence of a weighing cycle is recorded in a so-called unit curve.
  • This cycle is the result of the sum of many empirical values and also represents the percentage of material feed in percent over the time of a weighing cycle, which is subdivided into time segments.
  • this unit curve represents in percent the course of the needle belt speed and thus the material supply or delivery rate per unit time. It was surprisingly found that the optimum sequence of the material supply speed in all cases in approximately equal behaves, so that this curve in the percentage representation can be easily transferred to all concrete values.
  • the controller 40 is entered with the unit curve of the cycle of the weighing cycle and thus an essential parameter, so that only the time of weighing and the final target weight to be met are entered for the specific case.
  • a computer integrated in the control device 40 can also determine these two values directly from the desired production output. Since the filling capacity of the weighing container 10 is predetermined, the computer calculates the necessary number of weighing cycles and their time span, and the target weight to be specified for each weighing cycle. Based on the predetermined target weight calculates over the unit curve (Fig. 3), the computer, the target weight curve (Fig. 4), according to which the filling of the weighing container 10 is controlled by a corresponding variation of the fiber delivery in the weighing container 10 via a target / actual value comparison.
  • the needle belt speed is in each case regulated by the drive 41 so that a standstill of the needle belt 4 does not take place or only in exceptional cases, so that the material delivery extends over the entire weighing cycle.
  • a prefilling space 80 (FIG. 7) which is as large as possible, which is at least half as large, preferably approximately 2/3 to the same size as the weighing container 10, and thus able to absorb a continuous supply of material during the calming phase of the balance and the release of the final weight from the weighing container 10.
  • the reduction in material supply downtime can also be used to reduce the duration of the weighing cycle, thereby increasing performance without sacrificing the quality of the opening.
  • the weighing cycle is essentially divided into three phases, namely ( Figure 6) in priming (zone A), main filling (zone B) and fine filling (zone C).
  • zone D the downtime (zone D).
  • the settling time of the balance and the final weight measurement as well as the opening and dropping of the final weight onto the mixing belt 12, including any necessary taring of the balance take place.
  • the fine filling always takes place after emptied Vorhellraum and with open flaps 9 to bring the balance to the final weight. In this way it can be saved up to 2 or 3 seconds, which means a reduction in the conveying speed or a power increase of 15-25% in a conventional weighing cycle of 12-14 seconds.
  • Figure 3 shows the unit curve for a weighing cycle without downtime of the material supply.
  • the flow rate at the beginning of the cycle is about 100%. This delivery rate is maintained for approximately 60% of the weighing cycle time. Then the flow rate is lowered to about 20% and for the remaining 20 to 25% of the weighing cycle time with decrease in the flow rate, the fine metering to the final weight made.
  • the area under the unitary curve represents the total delivery that is to be achieved during the weighing cycle and dumped onto the mixing belt 12 as a final weight.
  • the unit curve is set for each mixing component I, II and III, wherein 100% each is the flow rate required to reach the target weight of the corresponding component during the weighing cycle time.
  • component I has the highest setpoint speed, here in the example at 60 m per minute, component II at 30 m per minute and component III at about 10 m per minute. This corresponds approximately to the mixing ratio of the components of 60: 30: 10.
  • FIG. 6 shows in a comparison what enormous advantages the elimination of downtimes has in favor of a continuous supply of material.
  • the strongly drawn unit curve represents the weighing cycle with the usual standstill time.
  • Zone A indicates the usual prefilling time
  • zone B the main filling
  • zone C the fine metering
  • zone D the downtime of the feed.
  • the percentages give as an example a usual expiration of the weighing cycle. It does not matter if the weighing cycle lasts 12 seconds or 16 seconds. In the present case, the example was taken from a weighing cycle of 14.5 seconds.
  • FIG. 14.5 seconds As can be seen from FIG.
  • the downtime is at least 25 to almost 30%.
  • the conveying speed can be reduced to about 60% or by utilizing the full conveying speed, a shortening of the weighing cycle can be achieved by 25%. Since the areas under the respective curves represent the target weight amount, it becomes clear what advantage the inventive method offers.
  • the pre-filling takes place with a material conveying speed which is adjusted so that the existing pre-filling chamber 8 or 80 is well utilized and optimally charged in the given or available time. If the size of the prefilling space 80 (FIG. 7) is about 60 to 80% of the weighing container 10, then the essential filling takes place in this prefilling time. After opening the flaps 9 this priming reaches the weighing container 10; and only a fine filling with low conveying speed is required to achieve the desired final weight exactly.
  • the material delivery begins with the conveying speed (FIG. 4) due to the target weight curve (FIG. 5).
  • the material conveying speed By means of a reference / actual value comparison with the specified target weight curve, it is determined which quantity is still to be filled up to the final weight. If the difference is very large, then the material conveying speed can only rise again to 100% and only be regulated down to the fine feed for the last 10 or 20%.
  • the goal is to carry out the filling with as uniform a conveying speed as possible, so that the conveying speed in the following cycle is already adapted overall for this prefilling time.
  • the flaps 9 close and cut off another supply of material.
  • the material transport does not turn off, but immediately begins to fill the Voritzllraum 8 or 80 again, while the balance performs its settling time and weighing and discards the weighed material.
  • the material transport begins at a transport speed of about 50% during the first weighing cycle.
  • a transport speed of about 50% during the first weighing cycle is then controlled after a weighing time of about 60% of the weighing cycle, which amount of material at the flat set Vor colll biology in the Vor colllraum 8 or 80 arrived. This of course depends on the material, but this material dependence is automatically included in this measurement, since the actual amount is measured as a function of the conveying speed during this prefilling.
  • This control can be done in different ways.
  • One method for example, is that by opening the butterfly valves 9, the previously filled Vor colllmenge is dropped into the weighing container 10 so that it can determine an intermediate weight, which is given to the computer, which compares this with the target weight. If this actual value is below the setpoint, this means that the 50% filling speed is too low and must be increased according to the difference between the actual value and the setpoint.
  • the computer gives the correct conveying speed, so that an optimal utilization of Vor colllraumes 8 and 80 takes place. If the pre-charge amount is too high, the speed will be reduced accordingly. This eliminates the usual adjustment measures. For refinement, this process can also be reiterated.
  • Vor Vor
  • Another way of optimizing the Vor collliques is to equip the Vor colllraum 8 with a measuring device for the degree of filling (probe, photocell, etc.).
  • the Vor colllraum 8 is filled until the transmitter responds and indicates the filling of the room, causing the flaps 9 open.
  • the required time is determined and the optimum filling speed is calculated and set in the computer by increasing or decreasing the basic setting.
  • the pre-filling amount can then be brought to the final weight and used as a first weighing.
  • the conveying speed of such a low conveying speed in which the complete filling of Vor colllraumes 8 or 80 is certainly not reached. In general, this is achieved with about 50% of the conveying speed.
  • the optimum starting speed of the needle belt 4 or the conveying speed is determined by comparing the actual weight with the target weight; as already described above.
  • the optimal conveying speed is determined after the optimization.
  • the controller switches over to the filling speed specified by the target weight curve.
  • a regulator which expediently acts on the delivery speed of the needle belt 4
  • the speed is controlled along this curve, so that a corresponding decrease in the filling speed is carried out to make the fine dosage upon reaching the final weight.
  • the cycle for the supply of material has already ended and the speed of the conveyor belt 4 is switched after closing the flaps 9 to the optimized conveying speed, whereby the prefilling process and thus the new weighing cycle begins.
  • the weighing device remains with the weighing container 10 in the settling time, and after the end thereof, the weighed material is dropped onto the mixing belt 1-2 by opening the weighing container 10.
  • the deviation of the actual weight is determined by the Sollabschmay and taken into account in the subsequent weighing cycles.
  • This can, as usual, carried out by weight, but it can also be influenced to optimize the process, the conveying speed. This is done so that according to the unit curve, the sequence of the weighing cycle remains the same, however, the calculated correction speed is set equal to 100% of the flow rate and thus the specification of the target weight and derived therefrom speed curve corrects. In this way, a very accurate weighing is achieved.
  • a weighing feeder I, II or III is provided for each component.
  • three components can be mixed. Since the individual proportions of the components are different sizes, the filling of the weighing container 10 takes in the usual known filling different lengths, so that the component that determines the largest share, also requires the longest time, so that the other two Wiegespeiser their weighing more have ended and with the dropping of their weight on the weighing feeder with the largest Have to wait for quantity.
  • these three weighing feeders are matched in their filling speed to one another in such a way that all three weighings are finished at the same time.
  • the target weight curve is determined from the unit curve for each component and given to the relevant weighing feeder, the speed curve for the filling speed is reduced accordingly.
  • the priming is slower, but the filling to the final weight can be maintained regardless of the Vor colllán so that the same period is filled, as in the largest component.
  • the weighing cycle plays here in percentage terms in the same way as with the largest component. A special setting is not required.
  • the unit curve is specified in each control unit or in the control unit of the entire system. Thus, only the desired production output or the weighing cycle and the desired final weights for the individual components need to be entered. Everything else, including the optimization of the process, is performed by the computer of the controller.
  • the controller can also be programmed so that the discharge of the weighed fiber quantities starts one after the other and ends one after the other, so that complete mixing packages always result.
  • the weighing feeder III will throw off its last weighing on the mixing belt 12 and then already stop its work.
  • the last discharge quantity then reaches the weighing feeder 11, which throws off its component to this last weighing of the weighing feeder 111 and then also stops its operation. Only when this mixing package has passed the last weighing feeder I, the mixing plant is switched off. Similarly, the start is made by the weighing feeder III starts and successively the weighing feeders II and I are switched on.
  • process control has been described by specifying a desired target weight curve according to which the material feed into the weigh bin 10 is controlled.
  • This target weight curve can also be determined empirically, but it is advantageous to determine this according to the invention via the unit curve.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Weight Measurement For Supplying Or Discharging Of Specified Amounts Of Material (AREA)
  • Basic Packing Technique (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Glass Compositions (AREA)

Claims (24)

  1. Procédé pour mélanger des composés fibreux à l'aide d'un processus d'alimentation et de pesage, dans lequel les différentes matières fibreuses à doser sont prélevées de pelotes respectives de fibres et transportées par un dispositif d'amenée de matière vers un récipient de pesage, en amont duquel est situé un espace de remplissage, le récipient de pesage étant séparé de l'espace de remplissage préalable par un clapet réglable, et, après le pesage, la matière étant éjectée du récipient de pesage vers un tapis de mélange, et une courbe de poids de consigne désirée (figure 5) étant imposée pour chaque composant fibreux du dispositif de pesage respectif (I, II, III), caractérisé en ce que, le long de cette courbe de poids de consigne, l'amenée de matière pour le remplissage du récipient de pesage (10) est contrôlée par une variation correspondante de la vitesse de transport au moyen d'une comparaison valeur de consigne/valeur réelle.
  2. Procédé selon la revendication 1, caractérisé en ce que le déroulement du cycle de pesage est déterminé par le pourcentage de la quantité transportée respective par rapport au pourcentage du temps du cycle de pesage (courbe unitaire).
  3. Procédé selon l'une des revendications 1 ou 2, caractérisé en ce que la courbe de poids de consigne (figure 5) pour chaque composant (I, II, III) est déduite de la courbe unitaire (figure 3) par rapport au poids de consigne du composant (I, II, III) qui doit être atteint au cours d'un cycle de pesage.
  4. Procédé selon l'une ou plusieurs des revendications précédentes, caractérisé en ce qu'une durée identique de cycle de pesage est imposée (figure 5) pour les composants distincts (I, II, III).
  5. Procédé selon l'une ou plusieurs des revendications précédentes, caractérisé en ce que le cycle de pesage est divisé en une phase de remplissage préalable, au cours de laquelle la matière transportée est recueillie dans un espace de remplissage préalable (8 ; 80), et une phase de remplissage fin (figure 6), au cours de laquelle la matière transportée est acheminée directement à travers l'espace de remplissage préalable (8 ; 80) vers le récipient de pesage (10).
  6. Procédé selon l'une ou plusieurs des revendications précédentes, caractérisé en ce que la variation de l'amenée de matière est effectuée par une variation de la vitesse de transport du tapis à aiguilles (4).
  7. Procédé selon l'une ou plusieurs des revendications précédentes, caractérisé en ce que l'adaptation du poids réel au poids de consigne respectif imposé par la courbe de poids de consigne est effectuée par un régulateur.
  8. Procédé selon la revendication 7, caractérisé en ce que le régulateur influence la vitesse de transport actuelle du tapis à aiguilles (4).
  9. Procédé selon l'une ou plusieurs des revendications précédentes, caractérisé en ce que le temps du cycle de passage est déterminé par la vitesse du tapis de mélange.
  10. Procédé selon l'une ou plusieurs des revendications précédentes, caractérisé en ce que l'éjection des quantités de fibres pesées sur le tapis de mélange (12) commence successivement et se termine successivement, de manière à produire toujours des paquets de mélange complets.
  11. Procédé selon l'une ou plusieurs des revendications précédentes, caractérisé en ce que, pour détecter la vitesse de transport optimale, la vitesse de transport du dispositif d'amenée de matière (4) pour le premier cycle de pesage est réglée selon une valeur empirique imposée, et après 25 à 70 % du temps du cycle de pesage, le poids réel atteint est comparé au poids de consigne, la différence ainsi détectée étant utilisée pour la correction de la vitesse de transport du dispositif d'amenée de matière (4).
  12. Procédé selon la revendication 11, caractérisé en ce que la valeur empirique pour l'optimisation de la vitesse de transport est d'environ 50 %.
  13. Procédé selon l'une ou plusieurs des revendications précédentes, caractérisé en ce que la vitesse de transport reste inchangée pour le dosage fin, indépendamment de la variation de la vitesse de transport pour le transport des matières lors du remplissage préalable et/ou du remplissage principal.
  14. Procédé selon l'une ou plusieurs des revendications précédentes, caractérisé en ce qu'à la fin du cycle de pesage, la déviation du poids réel par rapport au poids de consigne d'éjection est constatée, et la différence est prise en compte pour la correction de la vitesse de transport.
  15. Procédé selon l'une ou plusieurs des revendications précédentes, caractérisé en ce que le dispositif d'amenée de matière transporte de la matière fibreuse au cours du cycle de pesage entier, tandis que l'alimentation du récipient de pesage (10) se fait de manière discontinue.
  16. Procédé selon la revendication 15, caractérisé en ce que, vers la fin du dosage fin, la vitesse de transport du dispositif d'amenée de matière (4) va vers zéro, mais que la vitesse de transport pleine reprend immédiatement après la fermeture des clapets d'arrêt (9) (figures 3, 4 et 6).
  17. Dispositif d'alimentation et de pesage, dans lequel la matière fibreuse à doser est transportée par un dispositif d'amenée de matière vers un récipient de pesage, en amont duquel est situé un espace de remplissage préalable, et le récipient de pesage étant séparé par un clapet réglable de l'espace de remplissage préalable, caractérisé en ce qu'un dispositif de commande (40) est associé au dispositif d'amenée de matière (4), lequel dispositif de commande commande la vitesse de transport du dispositif d'amenée de matière (4) le long d'une courbe de poids de consigne (figure 5) prédéfinie au moyen d'une comparaison valeur de consigne/valeur réelle.
  18. Dispositif selon la revendication 17, caractérisé en ce que le dispositif d'amenée de matière comporte un tapis à aiguilles (4) qui extrait de la matière fibreuse de la pelote amenée, et qui est pourvu d'un moyen d'entraînement réglable en continu (41).
  19. Dispositif selon l'une des revendications 17 ou 18, caractérisé en ce que la capacité de l'espace de remplissage préalable (8 ; 80) correspond à la capacité du récipient de pesage (10).
  20. Dispositif selon l'une ou plusieurs des revendications précédentes, caractérisé en ce que la capacité de l'espace de remplissage préalable (8 ; 80) comporte environ 80 % de la capacité du récipient de pesage (10).
  21. Dispositif selon l'une ou plusieurs des revendications précédentes, caractérisé en ce que la capacité de l'espace de remplissage préalable (8 ; 80) comporte au moins la capacité du récipient de pesage (10) moins la quantité de remplissage fin.
  22. Dispositif de commande pour commander la vitesse de transport d'un dispositif d'amenée de matière (4) d'un dispositif d'alimentation et de pesage pour mélanger des composants fibreux, dans lequel la matière fibreuse à doser est transportée par le dispositif d'amenée de matière (4) vers un récipient de pesage (10), caractérisé en ce qu'une courbe de poids de consigne désirée (figure 5) pour la matière fibreuse à doser (I, II, III) est introduite dans le dispositif de commande (40), courbe le long de laquelle le dispositif de commande (40) commande le dispositif d'amenée de matière (4) au moyen d'une comparaison valeur de consigne/valeur réelle pour le remplissage du récipient de pesage (10) par variation de la vitesse de transport.
  23. Dispositif de commande selon la revendication 22, caractérisé en ce qu'on introduit dans le dispositif de commande (40) le déroulement du cycle de pesage sous forme du pourcentage de la quantité transportée respective par rapport au pourcentage du temps du cycle de pesage (courbe unitaire - figure 3), de quelle courbe on peut déduire la courbe de poids de consigne (figure b) pour chaque composant (I, II, III), par rapport au poids de consigne du composant (I, II, III) qui doit être atteint au cours d'un cycle de pesage.
  24. Dispositif de commande selon les revendications 22 et 23 pour commander la vitesse de transport d'un dispositif d'amenée de matière (4) d'un dispositif d'alimentation et de pesage selon l'une ou plusieurs des revendications 1 à 16.
EP99966838A 1998-12-09 1999-12-07 Melange de composants fibreux Expired - Lifetime EP1149196B2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19856447 1998-12-09
DE19856447A DE19856447A1 (de) 1998-12-09 1998-12-09 Mischen von Faserkomponenten
PCT/DE1999/003909 WO2000034557A1 (fr) 1998-12-09 1999-12-07 Melange de composants fibreux

Publications (3)

Publication Number Publication Date
EP1149196A1 EP1149196A1 (fr) 2001-10-31
EP1149196B1 EP1149196B1 (fr) 2003-07-09
EP1149196B2 true EP1149196B2 (fr) 2006-06-21

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EP99966838A Expired - Lifetime EP1149196B2 (fr) 1998-12-09 1999-12-07 Melange de composants fibreux

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EP (1) EP1149196B2 (fr)
AT (1) ATE244782T1 (fr)
CZ (1) CZ298194B6 (fr)
DE (2) DE19856447A1 (fr)
ES (1) ES2204185T5 (fr)
WO (1) WO2000034557A1 (fr)

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DE10043338A1 (de) * 2000-09-02 2002-03-14 Truetzschler Gmbh & Co Kg Vorrichtung zum Betreiben einer Speiseeeinrichtung für Fasermaterial, z. B. Kastenspeiser
US7082645B2 (en) 2002-10-16 2006-08-01 Kimberly-Clark Worldwide, Inc. Fiber blending apparatus and method
US7758485B2 (en) 2002-10-16 2010-07-20 Kimberly-Clark Worldwide, Inc. Pad folding system and method
AU2003245623A1 (en) 2002-10-16 2004-05-04 Kimberly-Clark Worldwide, Inc. Method and apparatus for making interlabial pads
US6915621B2 (en) 2002-10-16 2005-07-12 Kimberly-Clark Worldwide, Inc. Method and apparatus for wrapping pads
US6971981B2 (en) 2002-10-16 2005-12-06 Kimberly-Clark Worldwide, Inc. Method and apparatus for making interlabial pads
EP2395138A1 (fr) * 2010-06-10 2011-12-14 Recuperación de Materiales Textiles, S.A. Dispositif de mesure de fibres
DE102014111290A1 (de) * 2014-08-07 2016-02-11 Trützschler GmbH & Co Kommanditgesellschaft Vorrichtung zum Mischen von Faserkomponenten
DE102017115161A1 (de) * 2017-05-15 2018-11-15 Temafa Maschinenfabrik Gmbh Faserfördervorrichtung sowie Fasermischanlage
DE102018109005A1 (de) * 2018-04-16 2019-10-17 TRüTZSCHLER GMBH & CO. KG Verfahren zum Betreiben einer Spinnereianlage und damit betriebene Spinnereianlage
DE102019002233A1 (de) * 2019-03-28 2020-10-01 Hubert Hergeth Parallelwaage
CN112553715B (zh) * 2020-11-03 2022-03-29 青岛宏大纺织机械有限责任公司 一种精细混棉机称重自动补偿方法及***

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DD287573A5 (de) † 1989-08-30 1991-02-28 Akademie Der Wissenschaften Der Ddr,De Verfahren zum schnellen und genauen abfuellen von fliessfaehigem material
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DE1510247A1 (de) † 1965-02-23 1971-12-30 Fiber Controls Corp Steuerung fuer eine periodisch arbeitende Vorrichtung
DE2421797A1 (de) † 1973-05-09 1974-11-21 Toyoda Automatic Loom Works Verfahren und vorrichtung zum erzeugen einer fasermenge mit einem vorgegebenen maximalgewicht
US3939929A (en) † 1973-05-09 1976-02-24 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Apparatus for regulating supply quantity of textile fibers to a weighing device
DE3233246A1 (de) † 1981-10-09 1983-04-28 Automatic Material Handling, Inc., 28016 Bessemer City, N.C. Verfahren zum zufuehren von abgewogenen fasermengen zu einem foerdermittel
DE3412920A1 (de) † 1984-04-06 1985-10-17 Icoma Packtechnik GmbH, 7590 Achern Vorrichtung zum dosieren von fuellgut in einen wiegebehaelter
JPS6399330A (ja) † 1986-10-15 1988-04-30 Ootori Kiko Kk 繊維原料の混綿装置
DD287573A5 (de) † 1989-08-30 1991-02-28 Akademie Der Wissenschaften Der Ddr,De Verfahren zum schnellen und genauen abfuellen von fliessfaehigem material
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Also Published As

Publication number Publication date
ATE244782T1 (de) 2003-07-15
ES2204185T5 (es) 2007-03-01
CZ298194B6 (cs) 2007-07-18
WO2000034557A1 (fr) 2000-06-15
DE59906277D1 (de) 2003-08-14
CZ20012004A3 (cs) 2001-09-12
EP1149196A1 (fr) 2001-10-31
ES2204185T3 (es) 2004-04-16
EP1149196B1 (fr) 2003-07-09
DE19856447A1 (de) 2000-06-15

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