• 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:
    This invention relates to a device for removing short fibers from a mass of fibers. A pair of perforated cylindrical bodies (20, 21) are opposed to each other with a predetermined spacing defined therebetween, and static electricity is applied across the perforated cylindrical bodies. A suction-wise removing device (23, 24) is installed in at least one of the perforated cylindrical bodies. The initial end of a transfer conveyor (29) is located on the surface of one perforated cylindrical body adjacent the opposed region. Short fibers contained in the mass of fibers fed to the opposed region by a feeding device (18) are drawn into the suction-wise removing devices through the through holes (20a, 21a) in the cylindrical bodies by the action of electrostatic force and suction air currents. The mass of fibers having the short fibers removed therefrom are oriented by electrostatic force and transferred by the conveyor while being maintained in this oriented state.
    公开号:SU1662354A3
    申请号:SU884355488
    申请日:1988-03-17
    公开日:1991-07-07
    发明作者:Накано Юзуру；Табата Сиюнити；Ямагути Хироаки；Араки Хироси；Кондо Акира；Нисимура Синдзо；Ямаока Есиаки；Такесита Акихико；Ямада Едзи
    申请人:Джапан Коттон Текникал Энд Экономик Рисерч Инетитут (Фирма)；
    IPC主号:
    专利说明:

    This invention relates to devices for removing short fibers from a mass of fiber through the use of static electricity.
    The purpose of the invention is to increase the removal efficiency of short fibers.
    FIG. 1 diagram of the device section; in fig. 2 — device, longitudinal section; in fig. 3 is a side view of a device connected to a carding machine and a fiber feeding device; in fig. 4 - device option in axonometry; in fig. 5 - the same section.
    The device consists of a carding machine with a feed roller 2, a take-up roller 3, a cylinder 4, flat sections 5 and a collecting device 6, close to which the separating and feeding device 7 is located associated with the device 8 for removing short fibers.
    The device 7 for separating and feeding contains a collecting roller 9 for removing the strip car 1 obtained on the surface of the collecting roller 6, as well as the separation roller 10 which is rotatably mounted at high speed, the surface of which is made of a metal card tape, which separates the strip from separate fibers and passing them to the next processing step. The collecting roller 9 and the separation roller 10 are enclosed in a sheath 11.
    A device 8 for removing short fibers (Fig. 1-3) contains two cis &
    ABOUT
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    00 SP
    Ј

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    Lindric perforated elements 12 and 13, made of perforated metal installed in the housing
    14 tightly to the device 7 for separation and supply. The cylindrical perforated elements 12 and 13 are parallel to each other one above the other so that the axis of their rotation passes horizontally, and between the surfaces J
    15 and 17, a certain gap is provided, which is adjustable. In the embodiment, the distance between the surfaces 15 and 17 along the straight L connecting the rotation axes of the cylindrical perforated elements 12 and 13 is 1.5-2.5 times the effective length mass of fibers. The adjustment of this distance is realized by moving the support at least two of one of the cylindrical perforated elements up and down. Two cylindrical perforated elements 12 and 13 are rotated so that the opposite surfaces 15 and 2 17 move to the right (Fig. 1), the positions 18 and 19 designate drive belts.
    In the cavities of the cylindrical perforated elements 12 and 13 there are installed tubular suction elements 20 and 21, respectively, which capture certain angles 0Ј and | $ of the rear sides of the surfaces of cylindrical perforated elements 12 and 13, the suction elements 20 and 21 are formed by two connected with partial overlap elements 22 and 23, 24 and 25, which have an approximately semi-cylindrical shape and slightly different radii. This makes it possible to regulate the degree of opening of the suction ports 26 and 27, i.e. angles Ј and с in order to control the suction force, i.e. fiber absorption rate.
    The degree of opening (angles 0 and 2) of the suction holes 26 and 27 is controlled by means of semi-cylindrical elements 22 and 23, 24 and 25 formed on the transverse plates and cylindrical shafts 28-31 passing through cylindrical rotating shafts 16 and 32 attached to transverse plates, cylindrical perforated elements 12 and 13, due to their rotation at the corresponding predetermined angle. The shafts 28 and 30 and the elements 22 and 23 of a semi-cylindrical shape with a large radius are in
    four
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    20 25
    , "40
    45
    50
    55
    sliding contact with the inner surfaces of the rotating shafts 16 and 32 of cylindrical perforated elements 12 and 13 and lining out, and the shafts 33 and 34 of the elements 23 and 25 of a semi-cylindrical shape with a smaller radius are in sliding contact with the internal surfaces of the rotating shafts 28 and 30 larger radius and protrude outward. The elements 22 and 23, 24 and 25 rotate on the shafts 28 and 33, 30 and 34 until the suction openings are opened to a predetermined amount. Sealing elements are attached to the ends of the semi-cylindrical elements 20.
    The cylindrical axes 33 and 34 communicate with a suction blower (not shown). Positions 35 and 36 designate ball bearings supporting rotating shafts 16 and 32, and positions 37 and 38 designate drive sprockets.
    A high voltage negative electrostatic electricity generator 39 is coupled to the surface 17 of the cylindrical perforated element 13 and using the terminal 40, and the surface 15 of the second cylindrical perforated element 12 is grounded at point 41 via the terminal 42.
    Before the gap in the course of rotation (in Fig. 1 on the left side), surfaces 15 and 17 of the cylindrical perforated elements 12 and 13 are connected to the feed channel of the device 7 for opening
    and filing, i
    The conveyor belt 43 moves with the same surface speed as the cylindrical perforated element 12, and its end contacts the surface 15 of the cylindrical element 12 at a point adjacent to the line L connecting the axes of the cylindrical perforated elements 12 and 13, This tape runs at a right angle to the line L.
    On the upper surface of the tape is trans. The belt 44 is located with a certain gap, one end of which is in contact with the cylindrical perforated element 12 and which moves with the conveyor belt 43. This allows you to remove a lot of fibers in the form of a strip from the surface of the cylindrical perforated element 12 and remove it sandwiched between lenses
    Tami A3 and 4h at right angles to the line L.
    The cylindrical elements 12 and 13 can be made, for example, from perforated sheet metal, mesh with holes, conductive sheet perforated rubber, and the like. In an embodiment of the device, the diameter of the through hole is
    ten
    from 2 to 6 mm, and the total area from
    Versions range from 40 to 60% of the total surface area of the element.
    In the described sequence of devices, the strip card is fed to the carding machine 2, transmitted through the take-up roller 3, cylinder 4 and flat sections 5, where it is divided into individual fibers with the help of the card tape, after which the fibers are laid in a strip on the surface of the collecting device 6. The strip laid on the surface of the collecting device 6 is continuously removed by the roller 9 in the fiber mass opening and is transmitted by the feeding device 7 to the next processing stage, with the polo removed and is divided via the separation roller 10 into individual fibers. The divided mass is fed into individual fibers from the feed channel into the gap between the surfaces of the cylindrical perforated elements 12 and 13 of the device 8 for removing short fibers. At this moment, negative high-voltage static electricity is supplied to the gap between the surfaces 17 and 15, and the suction elements 20 and 21 are turned on, and the cylindrical perforated elements 12 and 13, the conveyor belt and the gripper tape are moving.
    The feed fiber is oriented during the gradual stretching under the force of electrostatic attraction and the suction force in the gradually narrowing gap between the surfaces 15 and 17 of the cylindrical perforated elements 12 and 13. At the same time, the fibers of a relatively large length join together and cover the gap between the cylindrical perforated elements, maintaining point contact with the surfaces 15 and 17, but in no case is it blocking the through holes. Short fibers are afloat and under the influence of electrostatic force.
    0
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    0
    Lines make a reciprocating movement between the surfaces 15 and 17, while they are not connected to each other in the form of a bridge and in the state of buoyancy pass through through holes in surfaces 15 and 17 and are sucked through suction / holes 2 and 27 into the suction elements 20 and 21 and are removed.
    The long fibers held between the surfaces 15 and 17 move together with the cylindrical perforated elements 12 and 13 as they rotate and are transmitted from the surface 15 of the cylindrical element 12 to one 45 end of the conveyor belt 43 adjacent to the element 12 beyond the narrowest gap area between the surfaces 15 and 17. Then, the longitudinal oriented fibers are grabbed at the corresponding end of the conveyor belt 43 and, in the form of a strip held between the belts 43 and 4 of the conveyor, move at a 5 right angle to the line L. funnel 46 via a sealing strip is removed in the form of strands by means of calender rollers and through the coiler 47 is supplied into the drum 48 (Fig. 3).
    The described method carried out the processing of cotton fiber with a weight number of 1.5 denier and an effective fiber length of 30 mm under the following conditions: distance 1 between the surfaces
    five
    cylindrical perforated elements 12 and 13 were 60 mma applied voltage of 45 kV, consumption of suction air 0.2 m 3 / s, speed
    0 rollers of rotation 18V-2600r / min and the conveyor belt surface speed of 29-30 rpm. As a result, the fibers were spun, from which short fibers were removed to a content of 16%, which did not differ from the results of the combing machine even when the content of short fibers in the card strip is about 27%.
    In addition, a very good orientation of the fibers in the longitudinal direction was obtained without the formation of curved fibers and without the application of a mechanical force destructive to fibers. This allowed to overcome the difficulties associated with removing short fibers in a known card.
    not, and in addition, there is no need for the implementation of the usual carding operation after processing in the carding machine.
    In the known carding machine, when removing the strip from the collecting roller, in order to regulate the yield of the strands, it is necessary to obtain approximately the same speed of the surface of the collecting device and the lifting roller, which reduces the collection efficiency and would lead to the problem of winding the strips on the collecting device and removing the roller.
    However, in the described embodiment, the collecting roller 9 located in the opening and feeding device 7 provides for collecting the strip at a surface speed exceeding the speed of the collecting device 6, which prevents winding the strip on the collecting device 6. Further, since the fibers of the strip are separated and fed into the gap cylindrical perforated elements 12 and 13 with a separation roller 10, it is possible to accurately and simply measure the fiber feed rate, which makes it easy to control the amount of fiber being processed a.
    In the device 8 for removing short fibers, the conveyor belt 43 passes at a right angle to the line L, and not only the tape 43 but also the grip 44 forming at its end 15 contacts the surface 15, which ensures a smooth removal of the strips from the surface 15 of the cylindrical perforated element 12. This eliminates the likelihood of sticking or winding remaining on the surface of 15 BO or locking the orientation of the fiber in strips.
    In a carding machine, instead of a strip (lap), cotton can be fed from a tray or hopper. A one-two-card card machine or a machine of any known type can be used. Controls, devices for removing dusting devices - Carding device 1 can be connected to device 8 for removing short fibers.
    Connecting a device to remove short fibers directly with the carding machine 1 using the described method allows using it not only to remove short fibers, but also to process bundles of fibers, strands and bands in any target

    g n 5
    Q Q

    five
    five
    In particular, the invention can be used with uniformly mixed masses of various types of fibers. The pulp extracted from the device 8 for removing short fibers can be re-fed into the carding machine 1 for cleaning it from waste and tow.
    In the described embodiment, the suction elements 20 and 21 are provided with adjustable size of the suction holes 26 and 27, but the size of the holes can be constant and, if necessary, changed, such as changing the fiber grade, the suction device can be replaced with another device with a proper size hole. Suction elements 20 and 21 are provided for both cylindrical perforated elements 12 and 13, although only one of these elements can be provided with a suction device.
    In another embodiment, one of the cylindrical perforated elements 12 and 13 may be equipped with a suction device, and the other with a device for generating a low-velocity air flow. The static electricity applied to the gap between the cylindrical perforated elements 12 and 13 can be both positive and negative, and also alternately positive and negative. In another embodiment, positive static electricity may be applied to one cylindrical perforated element, and negative to another.
    In the embodiment of the device 8 for removing short fibers (Figs. 4 and 5), the cylindrical perforated elements 12 and 13 are arranged parallel and parallel to each other, and their axes of rotation are horizontal, As in the first embodiment, the distance between the surfaces 15 and 16 These items are adjustable. The cylindrical perforated members 12 and 13 are rotated. In this case, the opposite surfaces 15 and 17 of them move downwards. Position 49 marked drive belt.
    In this embodiment, the suction device 20 and 21 made in the form of pipes. The suction ports 26 and 27 of the suction devices 20 and 21 have a predetermined opening angle jt and b (from 30 to 60 °) upward from the line L connecting the axes of the cylindrical perforated elements 12 and 13. The positions 50 and 51 mark the sealing elements.
    The device 7 for opening and feeding is located above the opposite surfaces 15 and 17 of the cylindrical perforated elements 12 and 13. The conveyor belt 43 for feeding the fiber mass moves in contact with the corresponding surface 15 in an arc segment with a central angle Y (in this embodiment approximately 90 °) along the rotation of the cylindrical perforated element 12, wherein the conveyor belt moves in the same direction as the cylindrical perforated element 12. From the end point of contact with the surface 15 The perforated 2 element 12 of the conveyor belt 43 is guided straight in and out of the housing 14. Consequently, the mass of the fiber is fed into the gap between the cylindrical perforated elements 2
    12 and 13, and after removing short fibers from it, it is conveyed by the belt of the conveyor 43 in such a way as to be held between the belt of the conveyor 43 and the surface 15 of the conventional perforated element 12, after which it is caught between the belt of the conveyor 43 and the grip that forms the belt 44 to take it out .
    In addition, the contact angle D of the cylindrical perforated element 12 with the belt of the conveyor 43 can be selected to be approximately 90.
    In such a device for removing short fibers in an operating mode, 4 i.e. when high voltage static electricity is applied to the gap between the surfaces 15 and 17 of the cylindrical perforated elements 12 and 13, with the suction element 4 and 20 and 21 moving and the conveyor belt 43 and the gripping belt 44 turned on, the fiber mass is fed through the mass hole and the feed device 7.
    Then, in the process of gradual expansion by the force of electrostatic attraction and suction force in the gradually narrowing gap between the surfaces 15 and 17 of the cylindrical perforated elements 12 and e
    The 13 fibers F acquire a certain orientation, the fibers of relatively large length are interconnected, cover the gap between the cylindrical perforated elements 12 and 13, and are held in point contact with the surfaces 15 and 17 without closing the through holes. The short fibers remain afloat and under the action of electrostatic attraction force reciprocate between surfaces 15 and 17, but do not join and do not close the gap. In the floating state during the reciprocating movement they pass through the through holes in the surfaces 15 and 17 and are sucked through the suction inlets 26 and 27 of the suction elements 20 and 21 for withdrawal from the process. Held between the surfaces 15 and 17, the long fibers move downwards with the cylindrical perforated elements 12 and 13 and are captured in the form of fibers oriented along the length between the surface 15 of the cylindrical perforated element 12 near the narrow gap area between the cylindrical perforated elements 12 and 13. In this gripping position long fibers are passed on. After removal of the conveyor belt 43 from the surface of the cylindrical perforated element .12, the long fibers trapped between the conveyor belt 43 and the gripping belt 44 are removed to the outside.
    权利要求:
    Claims (4)
    [1]
    1. A device for removing short fibers from a pulp containing a pair of cylinders, at least one of which has a screen, one spaced apart from one another, fiber feeding means placed in front of the cylinders, pulp removal means made in the form of a conveyor and placed for cylinders and means of orientation and removal of fibers, having elements of application of static electricity, characterized in that, in order to increase the efficiency of the process of removing short fibers, it has a suction system with branch pipes, each of which is located in the corresponding cylinder, with each element of the application of static electricity mounted with the possibility of contact with the surface of the corresponding cylinder, and the screen is placed in the cylinder, the cylinders being perforated.
    [2]
    2. A device according to claim 1, characterized in that the screen is made of two semi-cylindrical elements with different radii located coaxially with the inner surface of the cylinder and can be rotated one relative to the other to form an overlap zone.
    [3]
    3. The device according to claim 1, characterized in that the perforated cylinders are installed with
    regulation of the gap between them, and their axes are parallel, with the cylinders arranged in horizontal or vertical planes.
    [4]
    4. An arrangement according to claim 1, characterized in that the perforated cylinders are made of perforated sheet metal, a grid, or electrically conductive rubber sheet.
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    类似技术:
    公开号 | 公开日 | 专利标题
    SU1662354A3|1991-07-07|Device for removing short fibres from fibrous mass
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    US4527307A|1985-07-09|Waste collector for a card
    US3983273A|1976-09-28|Carding machines
    WO1999063135A1|1999-12-09|Apparatus for cleaning fibers
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    PL146866B1|1989-03-31|Method of manufacturing glass fibre products,in particular mats,yarn and roving
    US1968860A|1934-08-07|Fiber cleaning machine
    US2935766A|1960-05-10|Pneumatic doffer and cleaner for card machine
    US3349902A|1967-10-31|Fiber fractionating apparatus and process
    US3344479A|1967-10-03|Apparatus for cleaning fibers
    KR850000721B1|1985-05-23|Device for condensing the fleece emerging from a carding engine
    US3226774A|1966-01-04|Carding machine
    US3320641A|1967-05-23|Method for continuous, high-speed processing and cleaning of fibers
    SU866013A1|1981-09-23|Method and machine for combing fibrous lap
    US4028872A|1977-06-14|Method and apparatus for producing yarn from fibrous tufts
    US3391430A|1968-07-09|Apparatus for continuous, high-speed processing and cleaning of fibers
    US2605511A|1952-08-05|Taking-off of webs or fleeces from smooth rollers
    US2689983A|1954-09-28|Garnett machine
    US2931070A|1960-04-05|Fibre classifying machine
    SU1087574A1|1984-04-23|Carding machine
    同族专利:
    公开号 | 公开日
    IN171142B|1992-08-01|
    CN88101414A|1988-10-05|
    EP0282996A3|1991-07-31|
    KR920010282B1|1992-11-21|
    EP0282996A2|1988-09-21|
    CN1009013B|1990-08-01|
    KR880011377A|1988-10-28|
    US4827574A|1989-05-09|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3111719A|1957-12-31|1963-11-26|Johns Manville|Fiber opener and cleaner|
    GB931673A|1959-03-03|1963-07-17|Cotton Silk & Man Made Fibres|Suction cages for forming a lap or the like of fibrous material|
    US3024499A|1960-02-03|1962-03-13|Continental Gin Co|Lint cotton cleaner with by-pass|
    GB1006846A|1962-02-23|1965-10-06|Fleissner Ltd|A sieve-drum plant comprising a disengageable intermediate opener|
    US3319302A|1964-04-16|1967-05-16|Inst Textiltechnologie Der Che|Apparatus for sliver formation in carding machines|
    US3341008A|1964-06-12|1967-09-12|Jr Mayer Mayer|Fiber fractionating apparatus|
    US3396433A|1965-02-23|1968-08-13|Du Pont|Apparatus for making non-woven webs|
    US3346110A|1965-10-22|1967-10-10|Jr Joseph J Lafranca|Fiber fractionating apparatus and process|
    US3349902A|1965-10-22|1967-10-31|Jr Joseph J Lafranca|Fiber fractionating apparatus and process|
    US3489279A|1966-12-09|1970-01-13|Owens Illinois Inc|Particulate separator and size classifier|
    DE2431018C2|1974-06-27|1982-05-13|Hergeth KG Maschinenfabrik und Apparatebau, 4408 Dülmen|Device for cleaning flakes made of natural fibers, such as cotton flakes, from dirt particles|
    US3996731A|1975-02-06|1976-12-14|Rockford Manufacturing Company|Apparatus for conveying and break spinning fibers|DE3843655A1|1988-12-23|1990-07-05|Rieter Ag Maschf|METHOD FOR CLEANING A CARD TAPE|
    DE3913996A1|1989-02-16|1990-08-23|Rieter Ag Maschf|TEASEL|
    IL101168D0|1992-03-06|1992-11-15|Shlomo Sterin|Apparatus for sorting fibers|
    US5327617A|1993-04-21|1994-07-12|China Textile T&R Institute|Electrostatic opening and short fiber separation apparatus for carding machines|
    US5432980A|1994-06-01|1995-07-18|China Textile T&R Institute|Carding machine high voltage short fiber removal mechanism|
    FR2725216B1|1994-09-30|1996-12-20|Thibeau Et Cie A|DEVICE FOR DETACHING AND TRANSPORTING AT HIGH SPEED A FIBROUS VEIL LEAVING A CARD|
    FR2732042B1|1995-03-22|1997-06-13|Thibeau & Cie Sa A|SUCTION CYLINDER ALLOWS THE TRANSFER OF A FIBROUS VEIL BETWEEN A CONVEYOR BELT AND TWO CALENDER CYLINDERS|
    IT1292144B1|1996-06-29|1999-01-25|Truetzschler & Co|DEVICE ON A CARDA, IN WHICH A VEIL FUNNEL WITH EXTRACTION CYLINDERS IS PROVIDED AT THE OUTPUT OF THE CARDA|
    EP0837163B1|1996-10-11|2002-06-19|Dilo, Johann, Philipp|Apparatus and method for the web production from fiber material|
    AU2435999A|1998-02-03|1999-08-23|Maschinenfabrik Rieter A.G.|Device for preparing a fibrous material for a fiber sorting process|
    CH693344A5|1998-08-28|2003-06-13|Rieter Ag Maschf|Assembly for cleaning fiber laps and slivers has a mesh drum where the material is divided into fiber packets to be transferred to a cleaning drum for the extraction of dirt and debris|
    US6882423B2|2003-01-21|2005-04-19|North Carolina State University|Apparatus and method for precision testing of fiber length using electrostatic collection and control of fibers|
    CH704982A1|2011-05-20|2012-11-30|Rieter Ag Maschf|Apparatus for separating dirt and short fibers to a carder.|
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    CN102505200A|2011-11-01|2012-06-20|常熟新诚鑫织造有限公司|Edge cotton processing device of carding machine|
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    CN103706482A|2013-12-17|2014-04-09|香志光|High-voltage electrostatic short fiber separator|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    JP62066690A|JPH0224926B2|1987-03-19|1987-03-19|
    JP657188A|JPH0262607B2|1988-01-13|1988-01-13|
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