WO2007022658A1 - Systeme d'alimentation en flocons - Google Patents

Systeme d'alimentation en flocons Download PDF

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Publication number
WO2007022658A1
WO2007022658A1 PCT/CH2006/000451 CH2006000451W WO2007022658A1 WO 2007022658 A1 WO2007022658 A1 WO 2007022658A1 CH 2006000451 W CH2006000451 W CH 2006000451W WO 2007022658 A1 WO2007022658 A1 WO 2007022658A1
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WO
WIPO (PCT)
Prior art keywords
module according
fiber
feed
roller
speed
Prior art date
Application number
PCT/CH2006/000451
Other languages
German (de)
English (en)
Inventor
Martin Buholzer
Dyrk Saaro
Original Assignee
Maschinenfabrik Rieter Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Maschinenfabrik Rieter Ag filed Critical Maschinenfabrik Rieter Ag
Priority to EP06775145A priority Critical patent/EP1917388A1/fr
Publication of WO2007022658A1 publication Critical patent/WO2007022658A1/fr

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G9/00—Opening or cleaning fibres, e.g. scutching cotton
    • D01G9/14—Details of machines or apparatus
    • D01G9/16—Feeding arrangements
    • 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 flake feeding system in spinning preparation and to machines and assemblies for use in such a system, but more particularly, not exclusively to a feeder for delivering flakes to at least one card.
  • EP-A-810309 a fiber processing plant is known with a cleaning company, which is suitable to supply at least one card with flakes.
  • the so-called fine cleaning is preferably not carried out in the cleaning line itself, but in the hopper each card. The principle will be explained in more detail below with reference to Figures 1 and 2 of the present application, otherwise reference is made to the contents of EP-A-810309 itself.
  • EP-A-383246 From EP-A-383246 a metering device has been made known for the processing of fiber material, which allows an accurate determination of the funded Materiaimenge. The principle will be briefly explained below with reference to Figures 3 and 4 of the present application, otherwise reference is made to the content of EP-A-383246 itself.
  • the invention is not restricted to use in a system according to EP-A-810309 or in connection with a metering module according to EP-A-383246.
  • the preferred embodiments provide such systems or assemblies, which is why the content of EP-A-810309 and EP-A-383246 is hereby declared an integral part of the present description.
  • the invention provides a flake-forming module for a machine in the spinning mill preparation.
  • the module comprises a device for delivering a fiber stream having a predeterminable amount of fiber per unit time and a device for processing the discharged fibers to form a flock stream.
  • the device is controllable in order to be able to influence the processing of the fibers and thus the degree of opening of the flock stream.
  • the invention also includes a so-called opener with such a module, and in particular also a feeding machine for use in the flake feed for a card group.
  • FIG. 2 shows a copy of FIG. 12 from EP-A-810309
  • FIG. 3 shows a copy of FIG. 2 from EP-A-383246
  • FIG. 4 shows a copy of FIG. 4 from EP-A-383246
  • Fig. 5 shows schematically a floc-forming module according to the present invention
  • FIG. 6 shows a module according to FIG. 5, the illustration being simplified in order to be able to highlight certain aspects
  • FIG. 7 shows a basic diagram for explaining the control for a module according to FIG. 6.
  • Fig. 1 shows three cleaning machines 1, 4,90 in a "strand” followed by a card 11 from a card group, which is supplied with fiber material from the cleaning line.
  • the various machines are shown at different scales, since Fig. 1 is designed only to explain the processing steps.
  • the carding machine 11 with its hopper 8 can be designed according to the embodiment shown in FIG. 2 and are therefore shown in FIG. 1 only in outline.
  • the card can according to EP-A-866153 and the content of EP-A-866153 is therefore incorporated herein in the present application.
  • the reference numeral 70 indicates the turret of a bale opener 1.
  • the turret 70 is rotatably mounted on a traveling carriage 72 and carries a removal arm 73 of known type, with which fiber flocks of bales (not shown) are milled.
  • the carriage 72 is movable on rails 74 a transport channel 75 along, the milled flakes are delivered via the tower in the channel 75.
  • a transport airflow is generated by suitable means (not shown).
  • the transport channel 75 merges into a conveying path 3, which leads to the inlet 81 of a coarse cleaner 4, where a portion of the contaminants without intensive processing (in the "free flight", without the application of a clamping feed) removed From the coarse cleaner 4, the flakes are delivered by the pneumatic transport system via a conveying path 5 to a mixing machine 90.
  • the machine 90 comprises a plurality of (in the illustrated example, six) vertical chutes 91 where the flakes are separated from the transport air pass into a mixing chamber 92 where the fiber is conveyed by a horizontal conveyor belt 93 against an inclined conveyor (e.g., a needle flap cloth) 94.
  • the conveyor 94 removes fiber from the mixing chamber 92 and passes it to a chute 95 ,
  • the shaft 95 is followed by a discharge unit 97, which took over the function of a flock feeding machine for the cards in the embodiment according to EP-A-810309.
  • the outlet pipe 98 was therefore passed in accordance with EP-A-810309 in a channel 100, which led the flakes to all cards of an associated card group.
  • Fig. 1 only one card 11 is shown, wherein it is indicated that the channel 100 continues to supply other cards.
  • 2 schematically shows a filling shaft 8 (see FIG. 1) with a so-called cleaner module RM.
  • the lower part 34 of the shaft forms a fiber wadding W, from which fibers are conveyed by means of a feed roller SW and feed trough SM to a licker-in V.
  • licker-in can be provided, such as with dashed circles V2 and V3 is indicated.
  • the reference symbol VM indicates a drive motor which is provided for the licker-in V (and possibly for the additional licker-in V2, V3).
  • the sign VA indicates a separating element in the licker-in module and the box VAS schematically represents an actuator for adjusting the element VA with respect to the licker-in.
  • the cleaning module RM in the shaft 8 and the cleaning unit in the carding infeed can be linked to the card control 120, so that they are common or can be set individually.
  • the hopper 8 may, for. B. according to the PCT patent application PCT / CH2005 / 00161 of March 17, 2005, entitled "cleaning shaft" are formed.
  • FIG. 1 shows a sensor 101 and a control unit 102, the device 102 receiving signals from the cards and correspondingly controlling the flock feeding machine (discharge unit 97), which is indicated schematically by the line 103.
  • the spout assembly 97 (as depicted in FIG. 1) represents an opening stage because it includes an opener roller 104 with a pinch feed (in the form of a pair of feed rollers 105). The course of the degree of opening in the system was not separately disclosed in EP-A-810309.
  • the outlet unit 97 was designed in the embodiment according to EP-A-810309 preferably as a controllable unit to take over the Flockenenspeisefunktion, otherwise an additional feed machine would be provided.
  • the flock feed unit could also be formed as a separate module which supports the fibers e.g. B. from the mixer takes over and controlled reproduces.
  • Such units are also known from the prior art, for example from DE-A-10305049, DE-A-10214389, DE-A-19806891 and DE Utility Model 21002245. Such units are known in particular in installations which are conventionally with a fine cleaner before the flocculation of the card - work.
  • a "dedicated" feed machine for the flake feed A feed machine according to this invention can optionally be provided in a conventional plant, with a fine cleaner before the flake feed, or in a novel plant with a fine cleaner in the card feed hopper In both cases, it may prove advantageous to control flocculation in a controlled manner.
  • This new feed machine preferably comprises a so-called metering device or a metering module according to EP-A-383246.
  • FIG. 3 An embodiment of a metering module according to EP-A-383246 is shown in FIG. 3 and will be explained in more detail below.
  • the two side walls 56, 58 of a flake shaft reach close to the surfaces of feed rollers 18 and 20, respectively.
  • Fiber material 60 in the shaft 12 is detected by the rotating in the direction of arrow 26,28 feed rollers 18 and 20 and compressed into a batting 62.
  • the opener roller 22 then dissolves flakes out of this cotton, which moves in the direction of arrow 64.
  • the axis of rotation of the feed roller 18 is denoted by 66, the axis of rotation of the feed roller 20 by 68 and the axis of rotation of the opening roller 22 by 70.
  • the axes of rotation 66 and 70 are stationary.
  • the axis of rotation 68 of the feed roller 20 is supported by two arms 72 which are mounted on the axis of rotation 70 of the opener roller 22 and thus perform rotational movements about this axis of rotation 70 in the direction of the double arrow 74 can. As can be seen, such movements lead to a change in the distance x.
  • a biasing means 76 is provided, in the form of a biasing spring 78 which abuts at its end against a stop fixed to the hopper 80 and at its other end to a stop 72 connected to the arm 72 , Between the stop 80 and the stop 82, a rod 84 which is slidably disposed within the stop 82 extends.
  • a second biasing means 76 is provided on the other end face of the feed roller 20 and there also presses on the associated arm 72. The two springs 78 therefore try to make the distance x smaller.
  • the minimum distance x is predetermined by an abutment device 86, which cooperates with the arm 72 shown.
  • Another stop means 86 is located on the other end face of the feed roller 20 and cooperates in a corresponding manner with the local arm.
  • the distance x sets in operation depending on the pressure prevailing in the conveyor shaft, the density and the degree of opening of the fiber material and the force of the spring 78, wherein the size of the distance x can be determined by the sliding movement of the rod 84 within the stop 82.
  • the rod 84 and the stop 82 are designed as path measuring device
  • the material density in the conveying nip may be assumed to be at least substantially constant due to a bias with a substantially constant force.
  • the corresponding theory of the measuring system is listed in EP-A-383246 and will not be repeated here, wherein it can be said that under constant operating conditions the fiber mass or quantity m delivered by the module results from the following relation:
  • This method repeats time interval for time interval, with the control quickly adjusting to the desired mean production value msoll.
  • the control of the speed of the feed rollers is preferably realized as a control, d. H. without feedback of a measurement signal representing the effective speed.
  • the calculations themselves may be performed by a microprocessor, which is aware of the constant parameters and will be given the current measurement results of the path measuring device 82.
  • FIG. 4 shows a metering device which corresponds to a variant of the metering module according to FIG. 3.
  • the reference numeral 128 denotes the feed channel, by means of which flakes are transported pneumatically into the shaft 14.
  • an additional roller 88 is provided in the metering device, which feeds the fiber material in the shaft to the feed rollers 18 and 20.
  • the roller 18 is made slidable, while the roller 20 remains stationary.
  • the axis of rotation 66 of the displaceable feed roller 18.1 is also here by two arms 72.1, which are not supported in this example by the axis of rotation of the opening roller 22, but by the axis of rotation 90 of the additional roller 88.
  • the biasing device 76.1 is now arranged on the left side of the flake shaft and engages as in the embodiment according to FIG. 4 on the arm 72.1.
  • the spring nor the displacement measuring device is shown here, but it is understood that these units are present in the same way as in the embodiment according to FIG. 3. It is also understood that a further pretensioning device 76.1 on the other end side the roller 18 is provided.
  • the feed rollers 18.1 and 20.1 and the further roller 88 are driven by a common motor 92.
  • the drive consists of a chain 94, which is driven by a sprocket 96 on the output shaft of the motor 92.
  • the chain 94 runs on a sprocket 98, a sprocket 100 and a sprocket 102 provided for tensioning the chain with a tensioning device 104.
  • the circulation direction of the chain is indicated by the arrow 106, resulting in the desired direction of rotation 28 of the feed roller 20.1 and the direction of rotation 108 of the further roller 88 result.
  • the feed roller 18.1 is driven by a further circulating chain 110, which is driven by the sprocket 98 designed as a double sprocket.
  • the sprockets 100 and 98 and the sprocket 112 at one end face of the feed roller 18.1 have the same diameter, whereby the rotational speeds of these rollers are all the same.
  • the reference numeral 130 designates a computer which controls the speed of the feed rollers via the line 132 and receives via the line 134 the signal of the built in the pretensioner 76.1 Wegmeß worn.
  • the opener roller 22.1 is driven by a separate motor 114 and a rotating chain 116.
  • the opener roller 22.1 is lined with sheet metal guides 118, 120, the sheet metal piece 120 forming a guide channel 126 together with the sheet metal piece 124.
  • this channel 126 leads to a conveyor belt 34, where a cotton wool is formed.
  • DE-A-383246 shows a metering module with a feed roll and a (gap forming) counter element which is also provided in the form of a roll.
  • DE-A-810309 shows examples of arrangements where the mating element is not a roller. Also, this invention is not limited to the use of a second roller as a gap-forming counter element, wherein the use of a roller pair to form the gap is the preferred embodiment.
  • Dosing module for a flock feeding machine according to this invention
  • FIGS. 3 and 4 is an example of a device for dispensing a predetermined amount of fiber per unit of time, ie. H. to determine a given "production."
  • the present invention is not limited to the use of this example Alternatives are known, for example, from DE-A-2436096 and CH-B-490526 ( Figures 6 and 7) DE-A No.
  • Figure 5 shows schematically a floc-forming module for use in a flock feeding machine which supplies fibrous material in flake form to the cards of a carding group.
  • the reference numerals in Figure 5 correspond largely to the reference numerals of Figures 3 and 4 and denote substantially the same elements in these figures.
  • the side walls of the shaft are thus designated 56 and 58, respectively.
  • a more or less dense batting of fibers 60 forms.
  • the rollers 20, 88 promote fiber material 60 from this cotton in one closer space 100, wherein the density of the fiber material, compared to the material 60 in the shaft, is increased.
  • the rollers 18, 20 convey fiber material from the space 100 into the gap 102 with a further increase in the material density.
  • the directions of rotation of the rollers are indicated in Figure 5 with curved arrows.
  • the material density of the fibers in the gap 102 is essentially predetermined because the rollers 18, 20 are pressed together with a predetermined force, as indicated schematically in Figure 5 by the arrows A, B.
  • the fibers in the nip 102 therefore form a thin batt, which is conveyed by the rollers 18, 20 against a ⁇ ffnerwalze 22.
  • the conveying speed of the cotton wool is determined by the number of revolutions of the rolls 18, 20, d. H. effectively determined by the speed of the motor 96.
  • the latter speed is controlled as a function of the measured gap width x, so that the amount of fiber conveyed per unit of time in the direction of the opener roller 22 is essentially predetermined by a corresponding input to the controller 130.
  • the opener roller 22 is z. B. with so-called needle bars (not specifically designated) provided to move with the roller 22 in the direction indicated by the curved arrow rotation, the needles tear out fiber material from the presented end of the aforementioned cotton wool. This material exits the opener roller 22 as a stream of individual flakes 105. However, these flakes are not deposited on a conveyor belt (see Fig. 4). The flakes discharged from the opener roller 22 are introduced into an air stream (schematically indicated by the arrow L), which forwards them to the carding machines in a suitable conveying channel (compare line 100, Fig.
  • Stop / Go method for example according to DE-Gbm-20102245, or according to a so-called continuous process, for example, be controlled according to DE-A-10064655. Since both methods are well known to the person skilled in the art, they will not be explained in detail here.
  • the module will normally be integrated into a feeding machine, which, controlled by a suitable system control, works according to the chosen working principle (stop / go or continuous process).
  • the drive motor 114 for the opener roller is now also coupled at least indirectly to the controller 130, so that its speed can be selected by an input to the controller 130.
  • Motor 114 is preferably designed as a frequency-controlled electric motor, its speed being directly dependent on the output of a frequency converter 110.
  • the inverter 110 generates output signals in response to commands received from the computer controller.
  • the degree of opening of the flakes 105 produced is substantially dependent on the speed of the roller 22.
  • the spinning master is able to determine the degree of opening at the exit from the feeding machine or at the inlet of the flake feeding system sufficiently reliably (repeatably), ie. H. by means of inputs to the controller 130. This option was previously in the spinning preparation, at least in the flake charge, not.
  • the module according to FIG. 5 therefore has a double task
  • FIG. 6 shows schematically the basis for a further development of the module according to FIG. 5, wherein the working elements are still the same
  • FIG. 6 therefore shows the two feed rollers 18, 20 which deliver the relatively highly compressed cotton from the gap 102 to the opener roller 22.
  • each roller has a respective self-propelled motor 96A, 96B, 114, and these motors are speed controlled by the computer controller.
  • the feed rollers 18, 20 are preferably driven by a common motor, wherein the opener roller 22 has its own independent, speed controllable drive has.
  • the one feed roller, in this example the roller 20, is movable along a linear guide 120, wherein it is biased against the roller 18, in order to achieve a predetermined watt density in the gap 102.
  • a displacement measuring system shown schematically by the double arrow 119, provides signals to the controller 130 which correspond to the instantaneous value of the distance x (see FIG. 3). Based on these signals, the controller 130 controls the rotational speed of the two rollers 18, 20 in order to comply as much as possible with a production value (set value) entered at the controller 130, whereby, as already mentioned, this regulation is preferably carried out by control rather than by rules.
  • the controller 130 controls the rotational speed of the roller 22 so as to comply as much as possible with an effect input to the controller 130 in connection with the fiber processing.
  • the control is preferably realized by means of taxes.
  • the effect can z. B. be expressed in the form of any defined quality characteristic, which is in a detectable relationship with the degree of opening of the flakes.
  • An example is the so-called degree of dissolution of the fiber material, as it z.
  • any other index which has a definite relationship with the degree of opening would perform the same function is that the spinning master inputs to the controller no setpoint for the rotational speed of the roller 22, but a value that is related to him in a clearly visible manner with the quality of his product.
  • the translation of the entered quality index into a desired speed for the roller 22 is carried out in the controller 130 based on a stored family of functions, the production of the controlled machine, the speed of the roller 22 and the ratio in relation to each other.
  • a schematic example is shown in FIG. 7, this example being given only for explanation of the principle and not as a practical embodiment.
  • the effective relationships must be determined empirically on a case-by-case basis and will then only apply to machines of the same type (machine model).
  • the basic diagram of FIG. 7 shows, for five values (G1, G2, G3, G4, G5) of the aforementioned characteristic, the required rotational speed (vertical axis) of the opening roller 22 as a function of the production (horizontal axis).
  • each illustrated function is shown as a simple linear function. However, the empirically determined functions will likely have the shape of each curve and they will not all be the same shape.
  • a typical range for the production of a modern flock feeding machine is 20 to 1600 kg / h, whereby a higher production range (up to approx. 2000 kg / h) is already foreseeable today.
  • the corresponding speed range for the opener roller of an arrangement according to the figure 6 is 10 to 1500 U / min.
  • the spinning master will determine the machine settings according to textile technological or economic considerations. On the one hand, it will therefore determine the required production (for example P1) required to meet the demand from the cards and, on the other hand, the "degree of resolution" or
  • the control Based on the function for degree of dissolution G3 stored in the memory (not shown), the control now determines the rotational speed D1 (FIG. 7) for the opening roller 22.
  • the roller 22 therefore generates a flock flow with an average flake size which corresponds to the set "degree of activation" (corresponding to FIG If, however, this degree of resolution G3 proves to be "not practical", the master can select a different degree of resolution (for example G4) with constant production P1 and enter it into the controller 130.
  • the controller 130 determines a new rotational speed (D2, indicated by dashed lines in FIG. 7) for the opening roller 22 and causes the corresponding change thereof Betri ⁇ bsparameters by suitable signals to the motor 114 and to its frequency converter 110 (Fig. 6).
  • the production P1 initially set but z. If, for example, it proves to be insufficient, the operating parameter "production" can be increased, for example, to P2 ( Figure 7) .
  • the control 130 determines a new rotational speed (D3, in FIG dash-dotted lines) and adjusts this parameter accordingly on the motor 114 or frequency converter 110.
  • the master can thus select the production and the degree of resolution individually (independently of one another) - the controller then ensures that the machine settings are adapted accordingly. The prerequisite for this is the possibility of setting the speed of the opener roller as desired (or at least within predetermined limits), which is given by the arrangement according to FIGS. 5 and 6.
  • the preferred embodiment of the invention thus enables the automatic, mutual adaptation of the machine settings for selected working elements of the machine in order to meet the requirement for autonomously selected operating parameters such as production and degree of resolution simultaneously.
  • Some of these operating parameters can also be set automatically.
  • the currently prevailing setpoint for the "production" of a feed machine can be determined, for example, by the effective "demand” from the machines supplied, which can be determined by means of suitable sensors on the respective machines supplied. Nevertheless, the spinning master can now determine the degree of resolution desired by him and have it maintained by means of the controller 130.
  • a stored recipe can now be called up as needed by an operator and brought by the controller 130 for use become.
  • a recipe could in principle also contain a production value, whereby the required production is probably entered separately.
  • the controller 130 extracts the required value for the degree of dissolution from the recipe, coordinates it with the input production and determines the appropriate value for the speed of the opener roller 22 based on the stored functions.
  • the invention is not limited to exploiting all the advantages of automatic, mutual adjustment of machine settings to autonomously selected operating parameters such as production and degree of resolution.
  • the controller could z. B. determine a speed of the opener roller for the entered values "production” and “degree of resolution” and display on a screen (not shown) - the master would then also enter the speed itself, if it appears the displayed value as actually suitable.
  • Continuous feed as described, for example, in DE-C-2858763 and DE-A-10064655, and in the technical article “Continuous Flow: Benefits & Control” in Textile Asia, July 1986, pages 50-54.
  • the essence of the control concept is that production is changed continuously or at least quasi-continuously.
  • the degree of dissolution or opening of the delivered flakes can be kept essentially constant over time, ie. H. stay the same.
  • the feed machine for the flocculation is in some cases the only place in the plant, which is specifically designed to perform an opening function. If, however, another point in the line should or could fulfill an opening function, this point can be equipped with a floc-forming module according to the present invention. A prerequisite for this is that the point does not have to perform an additional function, which runs counter to the controlled flocculation, for example a controlled cleaning function, where the speed of a garnished roller must be determined depending on the required degree of cleaning.
  • additional functions that are not in conflict with controlled flocculation can readily be exercised in combination with flocculation.
  • the opener rollers in the embodiments according to FIGS. 5 and 6 could therefore be provided with cleaning elements (for example knives or grate bars), the instantaneous cleaning effect at most being dependent on the variable speed of the opener roller itself, ie being variable.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)

Abstract

L'invention concerne une machine d'alimentation pour un système d'alimentation en flocons dans la préparation de filature. Cette machine comprend un module de formation de flocons comportant un appareil servant à distribuer un flux de fibres, avec une quantité prédéterminée de fibres par unité de temps, et un dispositif pour traiter les fibres distribuées afin de former un flux de flocons. Ce dispositif comprend un cylindre ouvreur à vitesse de rotation réglable de sorte que la vitesse de rotation de ce cylindre puisse être sélectionnée pendant le fonctionnement pour pouvoir influencer le traitement des fibres et par là même le degré d'ouverture du flux de flocons.
PCT/CH2006/000451 2005-08-25 2006-08-22 Systeme d'alimentation en flocons WO2007022658A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP06775145A EP1917388A1 (fr) 2005-08-25 2006-08-22 Systeme d'alimentation en flocons

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200510040399 DE102005040399A1 (de) 2005-08-25 2005-08-25 Flockenbeschickungssystem
DE102005040399.9 2005-08-25

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Publication Number Publication Date
WO2007022658A1 true WO2007022658A1 (fr) 2007-03-01

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EP (1) EP1917388A1 (fr)
CN (1) CN101248227A (fr)
DE (1) DE102005040399A1 (fr)
WO (1) WO2007022658A1 (fr)

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CN101724938B (zh) * 2009-11-19 2011-09-28 太仓市万龙非织造工程有限公司 一种干法非织造前处理设备及设备上的罗拉组合输送装置
CN104562305A (zh) * 2015-01-23 2015-04-29 济南鑫金龙机械有限公司 一种开松机喂料机构
DE102018109005A1 (de) 2018-04-16 2019-10-17 TRüTZSCHLER GMBH & CO. KG Verfahren zum Betreiben einer Spinnereianlage und damit betriebene Spinnereianlage
CN109442464B (zh) * 2018-09-20 2020-06-26 哈尔滨锅炉厂有限责任公司 双偏置式旋转给料阀生物质给料系统及给料方法
EP3739089B1 (fr) * 2019-05-16 2022-08-10 Oskar Dilo Maschinenfabrik KG Dispositif d'alimentation d'une installation de formation du non-tissé

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EP0333904A1 (fr) * 1988-03-24 1989-09-27 Spinnbau GmbH Appareil d'alimentation de carde ou similaire en matière fibreuse
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EP0286950A1 (fr) * 1987-04-13 1988-10-19 Maschinenfabrik Rieter Ag Cheminée d'alimentation pour machines de traitement de matière fibreuse
US4928355A (en) * 1987-10-05 1990-05-29 Trutzschler Gmbh & Co. Kg Lap evener for a fiber processing machine
EP0333904A1 (fr) * 1988-03-24 1989-09-27 Spinnbau GmbH Appareil d'alimentation de carde ou similaire en matière fibreuse
EP0383246A2 (fr) * 1989-02-14 1990-08-22 Maschinenfabrik Rieter Ag Procédé et appareil pour alimenter les flocons de fibres en quantité donnée

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DE102005040399A1 (de) 2007-03-01
EP1917388A1 (fr) 2008-05-07

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