• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Carding installation comprising: - at least one carding drum (1) fed with textile fibers; - a first doffer (3) for taking a first card web from the fibers driven by the at least one card drum; and at least one second doffer (4) for taking at least one second card web from the fibers entrained by the at least one card drum; means being provided for driving in displacement, in particular in rotation, at least the first doffer and the at least one second doffer, and the installation further comprising means (13) for adjusting over time the speeds of the doffers
    公开号:FR3018284A1
    申请号:FR1400562
    申请日:2014-03-07
    公开日:2015-09-11
    发明作者:Jean Louis Dupont；Loic Velly
    申请人:Andritz Perfojet SAS；
    IPC主号:
    专利说明:

    [0001] The present invention relates to a carding installation comprising at least one carding drum and at least two combing rollers for taking textile fiber from the carding drum and forming respective elementary webs. The present invention also relates to a method for starting a card plant of this kind in a vacuum. Carding equipment already known in the prior art comprises a main carding drum fed by a so-called food section which drives textile fibers to dispose them on the periphery of the drum and at least two combers, generally downstream of the drum. card, which each comprise a lining, in particular toothed, suitable for taking a portion of the fibers rotated by the drum to each form a respective elemental web, each respective web being then detached from the comb by a stain removal member to be deposited on a conveyor. The two webs are then driven by the conveyor (s) to a subsequent treatment device, for example a water jet binding device, a crosslapper or the like. These card facilities of the prior art are particularly complicated to start, especially empty. Without stopping the machine, it is particularly necessary to intervene directly at one of the bodies of the card, typically on the detacher with a stick or by manual removal of the brush cleaning the detacher, which in large current installations can be particularly dangerous. The present invention aims to overcome the disadvantages of the prior art by proposing a safer card installation, and in particular whose startup procedure is less dangerous for the workers in charge of operating the installation, especially at startup. According to the invention, a carding installation comprising: at least one carding drum fed with textile fibers; a first doffer for taking a first card web from the fibers entrained by the at least one card drum; and at least one second doffer for taking at least one second card web from the fibers entrained by the at least one card drum; means being provided for moving, in particular in rotation, at least the first doffer and the at least one second doffer, and the installation further comprising means for adjusting over time, in particular during a fiber setting cycle , the speeds of the combers, is characterized in that there are provided means for ensuring that, during a first time interval, the speed of movement, in particular of rotation, of the first doffer is substantially greater than the speed of the second doffer, and in particular the second doffer has a speed of displacement, in particular rotation, substantially zero. Preferably, the carding installation comprises a suction device for sucking the accumulated fibers and / or taken by the first doffer to evacuate the fibers, for example to recycle them to the fiber supply system. Preferably, there is provided means for cutting the suction of the suction device before the expiration of the first time interval, the first fiber web is then no longer discharged and can pour for example on a conveyor. Preferably, the adjustment means are such that, after the first time interval, the at least one second doffer is set in motion, in particular in rotation, preferably at a speed substantially equal to the speed of the first doffer.
    [0002] Preferably, the second doffer is disposed in the installation at a lower level than the first doffer. According to one embodiment, the installation comprises a distributing roll disposed between the carding drum and one or the combers, and in particular the second comb is located under the distributor cylinder. Thus, in the installation according to the invention, the worker in charge of starting the installation no longer intervenes on a body of the card, manually or with the aid of a stick. In a first phase, only the first doffer is rotated, so that fibers accumulate at the level of the second doffer that does not rotate. At the same time, more fibers are available for the first doffer and a good accumulation is also obtained. When the second doffer is started in rotation, the accumulation made between the drum and the second immobile doffer also ensures a rapid increase in load of the web of the second doffer. The present invention also relates to a method of starting or fiberizing a carding installation comprising at least one main carding drum, a first doffer and at least a second doffer, the method comprising the steps in which during a first time interval is imparted a movement, including rotation, the first doffer and is imparted to the second dancer a speed much lower than the speed of the first doffer, and in particular it is not imparted speed, then at the end of said first interval time is imparted a speed, including rotation, the second doffer, including substantially identical to the speed of the first doffer. According to a preferred embodiment of the invention, during a part of the first time interval, the first fiber web from the first dye is sucked by first suction means, then the suction is cut, preferably to leave the first veil of fibers is deposited on a conveyor.
    [0003] After expiration of the first time interval, it is imparted a speed to at least a second doffer, including rotation, preferably to let the second fiber web to be deposited on a conveyor.
    [0004] According to a preferred embodiment of the invention, two second comers are provided. Preferred embodiments of the invention will now be described, by way of example, with reference to the drawings, in which: FIG. 1 is a diagram of an installation according to a first embodiment of the invention; Figure 2 is a diagram of an installation according to a second embodiment of the invention; And FIG. 3 is a diagram of a third embodiment of an installation according to the invention. In Figure 1, there is shown a first embodiment of an installation according to the invention. The installation comprises a drum 1 of carding around which are driven textile fibers from a feeding device (not shown in the figure) mounted upstream of the drum. The installation represents only one drum. However, it could also be an installation in which two drums are provided in succession and only the second drum downstream of the installation is shown. Downstream of the drum is mounted a distributor cylinder 2 which distributes the fibers which it withdraws from the periphery of the main drum 1 to be picked up by a first doffer 3 and a second doffer 4 which each comprise toothed fittings allowing withdrawing the fiber at the periphery of the distribution drum.
    [0005] Each comb 3 and 4 is associated with a detacher 7 and 8 intended to allow the detachment of the fiber taken by the respective doffer, after the fiber has made a fraction of a turn on the periphery of the doffer, to send it on one or respective conveyors. Between the detacher and the respective doffer, it is also possible to provide a respective condenser cylinder 5 and 6. In the case of two conveyors, they can then be combined into a single conveyor on which the two fiber webs are conveyed for further processing, for example in a water jet binding device, in a crosslapper, etc. . The installation further comprises a suction box 11 mounted so as to suck up the textile fibers taken by the doffer 3 to prevent these textile fibers or a part of them from going on the conveyor. Respective motors rotate the various drums and cylinder of the plant. A central control system 13 makes it possible, in particular by means of appropriate software and integrated circuits, which are well known in the art, to control the speeds of rotation of the various cylinders as well as the starting and stopping of the Vacuum cleaners 11. The control system 13 can also control the speed of travel. The empty start of the installation is carried out as follows.
    [0006] In a first step, the main drum 1 and the distributor cylinder 2 are rotated. In addition, the first doffer 3 is rotated during a first time interval Atl. During the time interval Atl, the second doffer 4 is left stationary preferably. One could also provide a low speed with respect to the speed of the first doffer 3, preferably a zero speed is provided. During a portion Atl 'of the time interval Atl, the aspiration of the suction box 11 is started, so that the fibers taken by the first doffer 3 are sucked up and do not settle by the intermediate detacher 7 on the conveyor. At the end of the time interval Atl '(less than At1), the suction is cut off and the fiber web formed by the first doffer 3 is thus deposited on the conveyor. At the expiration of the time interval Atl, the second doffer 4 is rotated. The second fiber web is allowed to settle on the conveyor, the latter then conveying the fiber webs for further processing, and in particular to stack them before sending them to a crosslapper. At the end of the interval At2, the installation has started and produces fiber webs. No manual intervention was necessary, especially on fibers accumulated at the level of the combers. The different start-up steps can be summarized as follows: Step 1 Upper part - The first detacher 7 turns to its production instruction. - The first condenser 5 rotates at 90% of the speed of the detacher - The first combo 3 rotates at 170% of the speed of the first condenser. - The food (not shown in the figures) rotate 10 to 170% of the condenser speed - the suction 11 is running on the first drier Lower part - the second detacher 8 turns to its production setpoint 15 - the second condenser 6 rotates at 90% of the speed of the second detacher - the second doffer 4 is stopped The purpose of this first step is to load the card, then the first doffer (here the upper doffer), in order to have a good amount of fiber , and thus improve the removal on the carpet during the next step. Aspiration removes all or part of the fiber while the card is charging. When the doffer is loaded with fibers, we go on to the second step: Step 2 Upper part - The first detacher 7 turns to its production instruction. - The first condenser 5 rotates at 90% of the speed of the detacher - The first combo 3 rotates at 170% of the speed of the first condenser. - The food (not shown in the figures) rotate at 170% of the condenser speed - the suction 11 is cut on the first doffer 15 Lower part - the second detacher 8 turns to its production setpoint - the second condenser 6 turns to 90% of the speed of the second detacher 20 - the second doffer 4 is stopped The first doffer which is rotated from the start is in the upper part of the installation relative to the second doffer. The speeds are the same as in step 1, but the suction is cut off and the fiber is then deposited on the carpet. Then we go to the third step: Step 3 Upper - The first detacher 7 turns to its production setpoint. - The first condenser 5 rotates at 90% of the speed of the detacher - The first combo 3 rotates at 170% of the speed of the first condenser. 15 - The food (not shown in the figures) rotate at 100% of the production instruction - the suction 11 is cut Lower - the second detacher 8 turns its production set - the second condenser 6 turns 90% of the speed of the second detacher - the second doffer 4 turns 180% of the first condenser. The second doffer 4 is loaded and the veil is deposited on the conveyor. As can be seen in FIG. 1, the second doffer 4 is under both the distributor cylinder 2 and under the drum 1. The first doffer 3 is at a level higher than the second doffer and is on the cylinder side distributor opposite to the card drum 1. It should be noted that according to the invention, however, the use of the terms "first" and "second" does not imply any order of arrangement of the combers in the installation, and in particular the second doffer can be arranged so that to take the fiber 15 from the drum before the first doffer or vice versa. On the other hand, the card drum has a larger diameter than that of the divider cylinder, in particular 2 to 5 times larger, and the divider cylinder has a diameter equal to or greater than that of the doffer rollers, especially from 1 to 5 times bigger. For example, the card drum has a diameter of 1500 mm, while the diameter of the distributor cylinder is 700 mm and that of the combers 500 mm. In Figure 2, there is shown another embodiment of the invention in which there is no provision of a cylinder 2 divider said transfer drum. The combers 3 'and 4' take directly from the drum cylinder 1 'the fiber. The installation is then strictly identical in terms of start-up process, the first doffer being driven alone during a first time interval, then the second doffer is trained.
    [0007] Likewise, the management of the suction box is identical to the first embodiment. In Figure 3, there is shown a third embodiment, wherein there is provided two second comforters 41 and 42, the management of the rotational speeds of the combers is as follows. In a first step, only the topmost doffer, namely the first doffer 30, is rotated during a time interval Atl. During part of this interval Atl, we aspire the fiber from the first doffer, then at the end of Atl '<Atl, we let the fiber be deposited on the conveyor. At the same time, the two combers 41 and 42 are simultaneously started simultaneously. The two fiber webs are then allowed to settle on the conveyor with the first fiber web. According to another embodiment, it is possible, after having started the first doffer 1, start only the second doffer 41, then once the fiber web of the second doffer 41 "finished", start the third doffer 42 in rotation.25
    权利要求:
    Claims (9)
    [0001]
    REVENDICATIONS1. Carding installation comprising: - at least one carding drum (1) fed with textile fibers; - a first doffer (3) for taking a first card web from the fibers driven by the at least one card drum; and at least one second doffer (4) for taking at least one second card web from the fibers entrained by the at least one card drum; means being provided for driving in movement, in particular in rotation, at least the first doffer and the at least one second doffer, and the installation further comprising means (13) for adjusting the speed of the dofferers over time, characterized in that means are provided to ensure that, during a first time interval, the speed of movement, in particular of rotation, of the first doffer is substantially greater than the speed of the second doffer, and in particular the second doffer has a substantially zero speed.
    [0002]
    2. Installation according to claim 1, characterized in that it comprises a device (11) suctiondestiné suction the accumulated fibers and / or removed by the first dof (3) to remove the fibers, for example recycle to the fiber feed system.
    [0003]
    3. Installation according to claim 2, characterized in that there is provided means for cutting the suction of the first device (11) suction before the expiration of the first time interval, the first fiber veil being then more evacuated and can pour for example on a conveyor (9).
    [0004]
    4. Installation according to one of the preceding claims, characterized in that the adjustment means are such that, after the first time interval, the at least one second doffer (4) is set in motion, in particular in rotation, preferably at a speed substantially equal to the speed of the first doffer (3).
    [0005]
    5. Installation according to one of the preceding claims, characterized in that it comprises a cylinder (2) distributor arranged between the drum (1) card and one or the combers (3, 4).
    [0006]
    6. Installation according to any one of the preceding claims, characterized in that the second doffer (4) is disposed in the installation at a lower level than the first doffer (3). 30
    [0007]
    7. Installation according to claims 5 and 6, characterized in that the second doffer (4) is - 301828 15 under the cylinder (2) distributor.
    [0008]
    8. A method of starting or fiberizing a carding installation comprising at least one main carding drum 5, a first doffer and at least a second doffer, the method comprising the steps in which during a first time interval one impart a speed, including rotation, to the first doffer and imparted to the second doffer 10 a speed much lower than the speed of the first doffer, and in particular it is not imparted speed, then at the end of said first time interval is imparted a speed, in particular of rotation, to the second doffer, in particular substantially identical to the speed of the first doffer.
    [0009]
    9. A method according to claim 8, characterized in that during a part of the first time interval, the first web of fibers from the first doflet is sucked by suction means (11), then the suction is cut off, preferably to let the first fiber web settle on a conveyor.
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    同族专利:
    公开号 | 公开日
    CN104894697B|2019-04-09|
    CN104894697A|2015-09-09|
    TW201544644A|2015-12-01|
    FR3018284B1|2016-07-08|
    TWI671445B|2019-09-11|
    EP2927352B1|2018-06-06|
    EP2927352A1|2015-10-07|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    FR462558A|1913-09-15|1914-01-30|Giovanni Viganoni|Vacuum cleaner for unclogging card drums|
    DE69221967T2|1991-06-28|1998-04-09|Tecnotex Biella S R L|Drum card for the production of composites and nonwovens from natural fibers or synthetic fibers|
    EP1300492A1|2001-10-03|2003-04-09|Thibeau|Process and installation for the production of a condensed non-woven and device for condensing a non-woven|
    US4027358A|1975-01-29|1977-06-07|Canton Textile Mills, Inc.|Variable speed drive system for carding machine|
    DE3632483C2|1986-09-24|1992-08-27|Hollingsworth Gmbh, 7265 Neubulach, De|
    US5329669A|1991-08-01|1994-07-19|Jamerson Doug L|Drive system for carding machine doffer, crush and calendar rolls|
    JPH06152245A|1991-11-30|1994-05-31|Nippon Dempa Kogyo Co Ltd|Crystal oscillator|
    IT1307247B1|1999-04-20|2001-10-30|Fonderie Officine Riunite F O|CARDA, PARTICULARLY FOR THE PREPARATION OF VEILS FOR NONWOVEN FABRICS.|
    DE102005038401B4|2005-08-12|2020-03-12|Trützschler GmbH & Co Kommanditgesellschaft|Device on a spinning preparation machine, in particular a card, card or the like, with a roller, for. B. drum, which has a cylindrical, garnished outer surface|CN105200570A|2015-11-04|2015-12-30|河北宇腾羊绒制品有限公司|Cashmere carding device|
    FR3064649B1|2017-03-28|2019-06-14|N.Schlumberger|FIBER CARDING MACHINE FOR MANUFACTURING NON-WOVEN MATERIAL AND METHOD FOR IMPLEMENTING SUCH A MACHINE|
    DE102017117761A1|2017-08-04|2019-02-07|TRüTZSCHLER GMBH & CO. KG|stuff|
    DE102017118111A1|2017-08-09|2019-02-14|TRüTZSCHLER GMBH & CO. KG|teasel|
    CN109402800A|2018-12-24|2019-03-01|经纬纺织机械股份有限公司|A kind of method that the carding machine carded sliver does not break end|
    DE102019115143A1|2019-06-05|2020-12-10|TRüTZSCHLER GMBH & CO. KG|Card with a device for detecting disruptive particles|
    法律状态:
    2016-01-20| PLFP| Fee payment|Year of fee payment: 3 |
    2017-02-16| PLFP| Fee payment|Year of fee payment: 4 |
    2018-03-23| PLFP| Fee payment|Year of fee payment: 5 |
    2020-03-19| PLFP| Fee payment|Year of fee payment: 7 |
    2021-03-23| PLFP| Fee payment|Year of fee payment: 8 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1400562A|FR3018284B1|2014-03-07|2014-03-07|CARD INSTALLATION AND METHOD FOR STARTING SUCH INSTALLATION|FR1400562A| FR3018284B1|2014-03-07|2014-03-07|CARD INSTALLATION AND METHOD FOR STARTING SUCH INSTALLATION|
    CN201510056348.7A| CN104894697B|2014-03-07|2015-02-03|Carding machine device and the method for starting the device|
    EP15157015.7A| EP2927352B1|2014-03-07|2015-02-27|Carding system and method for starting such a system|
    TW104106808A| TWI671445B|2014-03-07|2015-03-04|Carding device and method of starting the same|
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