EP1090172B1 - Vorrichtung zum aussondern von verunreinigungen aus einem sich bewegenden faservlies und karde mit solch einer vorrichtung - Google Patents

Vorrichtung zum aussondern von verunreinigungen aus einem sich bewegenden faservlies und karde mit solch einer vorrichtung Download PDF

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Publication number
EP1090172B1
EP1090172B1 EP99925095A EP99925095A EP1090172B1 EP 1090172 B1 EP1090172 B1 EP 1090172B1 EP 99925095 A EP99925095 A EP 99925095A EP 99925095 A EP99925095 A EP 99925095A EP 1090172 B1 EP1090172 B1 EP 1090172B1
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EP
European Patent Office
Prior art keywords
waste
suction
nozzle
suction nozzle
cylinder
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
EP99925095A
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English (en)
French (fr)
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EP1090172A1 (de
Inventor
Marc Brabant
Christian Vanbeselaere
Philippe Merten
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Thibeau SA
Original Assignee
Thibeau SA
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 Thibeau SA filed Critical Thibeau SA
Publication of EP1090172A1 publication Critical patent/EP1090172A1/de
Application granted granted Critical
Publication of EP1090172B1 publication Critical patent/EP1090172B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • D01G15/00—Carding machines or accessories; Card clothing; Burr-crushing or removing arrangements associated with carding or other preliminary-treatment machines
    • D01G15/76—Stripping or cleaning carding surfaces; Maintaining cleanliness of carding area
    • D01G15/80—Arrangements for stripping cylinders or rollers
    • D01G15/805—Arrangements for stripping cylinders or rollers by suction or blowing

Definitions

  • the present invention relates to a device for removing waste from a layer of moving fibers, and which more particularly, but not exclusively, is intended to be mounted on a card.
  • the invention finds primarily, but not exclusively, its application to waste removal plants, such as thistles, straws, etc ... a sheet of wool fibers, and particular of a sheet of fibers formed on a woolen card.
  • a known type of skimmer system implements a slender tank for the reception of waste, commonly called “thistle bin”, associated with a rotary cylinder commonly called “hunter”.
  • this chaser cylinder has the function of removing the waste from a layer of fibers transported to the periphery of a cylinder or a card roller, and expel this waste destined for the reception bin.
  • the chasing cylinder is mounted on the periphery of a roller commonly called “Morel”, is driven to high speed in the same direction of rotation as this roller, and has a peripheral lining which comes flush with the surface of the layer of fibers transported at the periphery of the Morel cylinder so as to mechanically expel the waste into surface of the fiber fleece, without destroying the structure of the fiber fleece fibers.
  • this mechanical cleaning system of the receiving tray comprises a plurality of scrapers which are fixed on a belt tensioned between two pulleys mounted at each end of the receiving tank, one of the pulleys being rotated for example by a gear motor.
  • Each scraper comes into contact with the bottom of the receiving tank, and has a suitable shape to the shape of the bottom of the receiving tray so that you can train effectively the waste contained in the receiving bin.
  • a first drawback is linked to the fouling of the scraper cleaning system.
  • the waste that is expelled by the hunter in the receiving bin takes with them a certain amount of fiber. A part of these fibers clings to the edge of the scrapers.
  • When a fiber is hung on a scraper it hangs along the reception bin, hooks others fibers and becomes tangled with waste.
  • An initial heap of fibers and waste on the scraper When the scraper reaches the end of the receiving tank level of the pulley driving the belt, it goes up while turning, and takes with him this heap of fibers and waste. This movement of raising the squeegee also causes the fibers to wrap around the scraper.
  • the second drawback of the above-mentioned scraper cleaning system is linked to its large size, and especially to the fact that it makes it difficult to access the chasing cylinder, for maintenance or control operations position of the chasing cylinder relative to the Morel cylinder or equivalent.
  • This difficulty of access is reinforced by the fact that to limit the risks of fouling mechanical parts near the peeler system, or parts mechanics of the skimmer system itself, we are constrained in practice enclose the scraper cleaning system in a bulky cover. In practical, to access the chasing cylinder, it is necessary to remove the scraper cleaning system.
  • a wool card which in the usual way comprises a first cylinder 1 commonly called “lickerin”, a second cylinder 2 commonly known as the front end, a third cylinder 3 commonly called a large drum and an outlet cylinder 4 commonly known as a painter.
  • This card usually makes it possible to form a sheet of carded wool which is usually detached from the periphery of the comb 4 by a beating comb 5.
  • This wool carder is equipped with an installation which allows to remove waste from the sheet of fibers being carded, and which includes two devices 6 'skimmer according to the invention mounted on either side of the front end 2, and a skimmer device 6 "according to the invention and produced from licker cylinder 1.
  • skimmer devices essentially include a cylinder Morel 7, a chasing cylinder 8, a slender receiving tank 9 and a nozzle 10.
  • the Morel 7 cylinder supports and transports the water table fibers being carded up to the chaser cylinder 8, which is mounted on the periphery of the Morel 7 cylinder and which is rotated at high speed in the same direction of rotation as the Morel 7 cylinder.
  • On either side of each Morel 7 cylinders are provided with T transfer cylinders, which allow transfer the sheet of fibers from the previous cylinder to the Morel 7 cylinder (lickerin 1 or front end 2) and take up the layer of fibers at the periphery of the Morel 7 cylinder by transferring it to the next cylinder (front end 2 or large drum 3).
  • the 6 "skimmer device differs from the skimmer devices 6 'only in that the tablecloth transport cylinder is made up either by a Morel cylinder but directly by the licker cylinder 1.
  • the chasing cylinder 8 usually has the function of removing mechanically waste in the moving web of fibers on the surface of the transport cylinder (Morel 7 or lickerin 1 cylinder) and expel this waste into the elongated receiving tank 9, which is mounted on the periphery of the cylinder transport and which extends substantially over the entire length of this cylinder.
  • the receiving tank 9 has a vertical wall 9 a which is extended by a bottom 9 b forming a V-shaped chute.
  • This bottom 9 b could generally have any concave upper surface.
  • the suction nozzle 10 is mounted above the bottom 9 b of the receiving tank 9, and is slidably mounted on the vertical wall 9 a of the receiving tank, in the direction of the length of the receiving tank 9, c ' that is to say parallel to the axis of rotation 8 a of the chasing cylinder 8.
  • the suction nozzle 10 is constituted by a single cylindrical tube 11 open at both ends (11a, 11b), vertically mounted above the bottom 9b of the receiving tray 9, in plumb with the tip of the V formed by the bottom 9 b , that is to say generally in line with the part of the bottom 9 b where the slope of the bottom is reversed.
  • the end 11 has lower suction nozzle 10 is mounted near the bottom 9 b, without coming touch the bottom 9b of the receiving tray 9.
  • the upper end 11b of tube 11 is connected, by 'via a flexible connector 12, to a centralized suction system shown in Figure 3.
  • the suction end 11a of the tube 11 forming the suction nozzle 10 is mounted an outer scraper 13, which extends radially with respect to tube 11 and which is more particularly oriented towards the chasing cylinder 8.
  • the suction nozzle 10 is equipped with displacement means 14 which are illustrated diagrammatically in FIG. 3, and which have the function of translating the suction nozzle in the direction of the length of the receiving tank 9 between the two ends 9 c of the receiving tank 9, on command of an electrical signal.
  • These displacement means 14 can be produced in various ways known to those skilled in the art. It will be possible to use an actuator without rod that can be controlled electrically or pneumatically; the nozzle 10 could in another variant be secured to a belt with a double direction of rotation; in another variant, the nozzle 10 could be mounted on a rack and include an on-board motorization system.
  • the waste and residual fibers which are expelled by the chasing cylinder 8 in the receiving tank 9 are sucked into the bottom of the receiving tank 9 by the suction nozzle 10 during the back and forth translation movements which it performs between the two ends 9 c of the receiving tank 9.
  • the means of displacement 14 of the suction nozzle 10 can be controlled so that the nozzle performs continuous back-and-forth movements between the two ends 9 c of the tank reception. In another variant which will be described below with reference to FIG. 3, these control means can be provided so that the nozzle performs back and forth movements between the two ends 9 c of the container 9, with a stopping time at each change of direction, that is to say when the suction nozzle 10 is positioned at one of the two ends 9 c of the receiving tank 9.
  • the main advantages of the skimmer device of the invention with The reciprocating suction nozzle are as follows.
  • the suction allows recover the waste without having to push it into the bottom of the bin, which limits the risk of accumulation of fibers and waste on the suction nozzle.
  • the scraper 13 has the simple function of detaching the waste and residual fibers which would remain attached to the bottom of the tank outside of the suction area of the nozzle 10, and to slide these fibers and residual waste up to the central part of the bottom of the container, i.e. in the swept area by the suction nozzle.
  • the risks of fibers catching and clustering fibers and waste on the suction nozzle and the scraper 13 are therefore considerably reduced compared to the known solution implementing a plurality of scrapers mounted on a belt.
  • each of the skimmer devices 6 'and 6 "of Figure 1 are connected to a single central collection by suction of waste.
  • This central essentially comprises a network three fixed conduits 15 connected to a fan V.
  • Each conduit 15 is connected to a suction nozzle 10 by means of a flexible connector 12.
  • On each conduit 15 is also provided a closing valve 16.
  • a sensor 17 At the level each of the ends 9 c of a receiving tank 9 is further provided with a sensor 17 having the function of detecting the position of the suction nozzle 10 relative to the receiving tank.
  • Each sensor is for example constituted by a contactor limit switch cam, which is engaged when the suction nozzle reaches the corresponding end 9 c of the receiving tank 9.
  • Each of these sensors 17 delivers a detection signal 17 a .
  • the three suction nozzles 10 are controlled one after the other sequentially and cyclically by means of an industrial programmable controller 18 which receives as input the detection signals 17 a delivered by the sensors 17, and which delivers on the one hand signals control 18 b intended for the valves 16 and on the other hand control signals 18 a intended for the displacement means 14 of each of the suction nozzles 10.
  • the sequential and cyclic control of the suction nozzles 10 by the automaton 18 is carried out as follows.
  • the fan V is initially started and operates continuously during the entire process of controlling the suction nozzles 10.
  • the automatic device 18 is programmed so as to control, during a given operating sequence, only one of the three nozzles, the two other suction nozzles 10 being stopped and not connected to the fan V.
  • the suction nozzle which is controlled by the automatic device 18 during an operating sequence ( n) will be designated in the following by nozzle (n).
  • the automaton 18 controls the opening of the valve 16 of the suction nozzle (n), and the closing of the valve 16 of the suction nozzle (n-1) from the previous sequence (n-1).
  • the automaton 18 then controls the means 14 for moving the nozzle (n), which causes the translation of this nozzle from its initial position at the end of the receiving container 9 towards the opposite end 9c of the container reception 9.
  • the automaton 18 detects this new extreme position of the nozzle (n) by means of the sensor 17 associated with this position, and controls the stopping of the displacement means 14 of the nozzle (n).
  • the automaton 18 then performs the command sequence (n + 1), with the following nozzle, etc.
  • This sequential and cyclic control of the suction nozzles allows advantageously to use a single low power fan to control multiple suction nozzles, compared to a system in which all three suction nozzles would operate in parallel and be connected simultaneously to fan V.
  • the invention is not limited to the embodiment which has just been described with reference to FIGS. 1 to 3.
  • Waste collection is not necessarily centralized, the suction nozzles 10 being able to be independent each other and be equipped with their own means of suction and their own control means.
  • the invention is not limited to an implementation work of a skimmer device on a woolen card but can in a way general be applied to the removal of waste in a sheet of fibers transported to the surface of any transport cylinder.
  • the mobile carriage C is mounted on four rollers G, at least one of which is motorized by means of an onboard motor M, and is mounted rolling on a substantially horizontal guide rail 20, which is supported on the ground at level of its two ends 20 a and 20 b , and which is arranged substantially parallel to the axis of rotation of the Morel cylinders 7.
  • the on-board motor M makes it possible to control the outward and return movement of the carriage C between the two ends 20 a and 20 b from rail 20.
  • a fan V ' which is connected to the four suction nozzles, and which when switched on allows to suck waste in the receiving bins 9, via the suction nozzles, the collected waste being transported inside the box 19.
  • a filter F which is interposed between the outlet of the nozzles suction 10 and the fan intake inlet V ', and which prevents the collected waste is only transported to the fan in the box.
  • a pipe 21 for collecting waste is provided, which is connected to a central vacuum unit (not shown); and which makes it possible to aspirate the waste temporarily collected inside the box 19, when the movable carriage C arrives at the end of its travel at the discharge end 20 b .
  • a central vacuum unit not shown
  • an opening 22 for discharging the waste which is closed by a pivoting hatch 23 (shown diagrammatically in dotted lines in FIG. 5).
  • the free end 21 a of the waste recovery pipe 21 is mounted relative to the box 19 of the mobile carriage C, so that when the mobile carriage C arrives in its extreme so-called unloading position at the end 20 b of the guide rail 20 (position illustrated in solid lines in FIGS. 5 and 6), the return pipe 21 penetrates inside the box 19 through the opening 22, which allows recovery and evacuation, via the recovery line 21, waste temporarily collected inside the box 19.
  • the skimmer device 6 ''' which has just been described is as follows.
  • the movable carriage C moves automatically in a back and forth movement between the two ends 20 a and 20 b of the rail 20, that is to say between the two extreme positions illustrated in FIGS. 5 and 6.
  • the on-board motor M is controlled by an electronic card (not shown) which is programmed to automatically detect the extreme positions of movement of the carriage C, from detection signals delivered by limit switches 24 arranged in the extreme parts of the guide rail 20.
  • the fan V 'integrated into the box 19 is constantly running, the waste in the two receiving bins 9 being continuously sucked in and conveyed to the inside the box 19.
  • the hatch 23 of the box 19 comes into contact with the free end 22 of the re grip 21.
  • the movable carriage C then continues slightly its course in the direction of the recovery pipe 21 (arrow F in FIG. 5).
  • the hatch 23 is thus automatically pushed back by the free end 22 of the recovery pipe 21, which free end penetrates inside the box 19.
  • the recovery pipe 21 being connected to a central vacuum, the waste is sucked and evacuated from inside the box 19 towards the central vacuum via the return line 21.
  • the limit switch 24 associated with this unloading position of the movable carriage C is positioned so that the detection of limit switch, for reversing the direction of rotation of the motor M of the movable carriage C, is carried out while the return line 21 is inserted inside the box 19.
  • the main advantage of the alternative embodiment of Figures 4 to 6 is that it makes it possible to avoid the implementation of flexible fittings which must follow the movement of the carriage, such as the flexible fittings referenced 12 on the variant of FIG. 3.
  • the variant of FIGS. 4 and 6 could be modified by so that the mobile carriage C is provided for cleaning a single container of reception 9.
  • the number of suction nozzles 10 fitted to the mobile carriage C can be any in the context of the invention.
  • FIG 7 an alternative embodiment of a peeler device 6 'according to the invention, which differs from that described with reference to Figure 2, mainly by the suction means associated with the nozzle suction 10.
  • the suction nozzle 10 comprises a tube 11 which opens at its upper end 11b in a movable collection box 25.
  • this box 25 is provided an air exhaust opening 25 a at which is fixed an air exhaust nozzle 26.
  • this box 27 is formed a suction slot 27 a which extends parallel to the path of the suction nozzle 11, and which is closed in a substantially sealed manner by two flexible lips 28.
  • the air exhaust nozzle 26 is introduced between these two flexible lips 28.
  • the air exhaust nozzle 26 moves along the casing 27 while being inserted between the two lips flexible 28 of this box.
  • the two flexible lips 28 are in contact with one another and close the slot 27 a .
  • the air exhaust nozzle 26 locally separates the flexible lips 28 from one another.
  • the box 27 being placed under vacuum by the central vacuum unit (not shown), the suction nozzle 10 is thus constantly connected via the box 25 and the air exhaust nozzle 26 to a fixed suction source formed by the suction box 27.

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

Claims (10)

  1. Vorrichtung zum Entfernen von Fremdkörpern bzw. Verunreinigungen aus einem sich bewegenden Faservlies, die umfasst:
    einen Transportzylinder (1; 7), der die Funktion hat, das die Fremdkörper bzw. Verunreinigungen enthaltende Faservlies zu tragen und zu transportieren,
    einen länglichen Trog (9) für die Aufnahme der Fremdkörper bzw. Verunreinigungen und
    eine Einrichtung (8), die am Umfang des Transportzylinders angeordnet ist und die Funktion hat, die Fremdkörper bzw. Verunreinigungen von dem sich bewegenden Faservlies zu trennen und sie in den Aufnahmetrog zu befördern,
    dadurch gekennzeichnet, dass sie außerdem mindestens eine Düse (10) zum Ansaugen der Fremdkörper bzw. Verunreinigungen in den Aufnahmetrog umfasst, die oberhalb und in Richtung der Länge des Aufnahmetrogs (9) in einer Hin- und Herbewegung verschiebbar angeordnet ist.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass der Boden (9b) des Aufnahmetrogs (9) eine konkave obere Oberfläche aufweist und dass die Ansaugdüse (10) senkrecht über dem Teil des Bodens angeordnet ist, in dem sich die Neigung der konkaven oberen Oberfläche umkehrt, und dass an dem Ansaugende (11a) der Düse (10) mindestens ein äußerer Abstreifer (13) befestigt ist.
  3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Ansaugdüse (10) einen Abstand von dem Boden (9b) des Aufnahmetrogs (9) hat und mit diesem nicht in Kontakt kommt.
  4. Vorrichtung (6') nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass sie einen festen Ansaugbehälter (27) umfasst, der mit einem Längsschlitz (27a) versehen ist, der sich parallel zum Weg der Ansaugdüse (10) erstreckt und durch zwei weiche Lippen (28) verschlossen ist, und dass die Ansaugdüse (10) über eine Luftauslassdüse (26), die zwischen die beiden weichen Lippen (28) eingesetzt ist, mit dem Innern des Ansaugbehälters (27) in Verbindung steht.
  5. Vorrichtung (6''') nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Ansaugdüse(n) (10) auf einem beweglichen Schlitten (C) befestigt ist (sind), der einerseits einen Sammelbehälter (19) für die Fremdkörper bzw. Verunreinigungen, wobei jede Ansaugdüse (10) mit dem Innern des Sammelbehälters (19) in Verbindung steht, und andererseits Ansaugeinrichtungen (V') aufweist, die das Einfangen der Fremdkörper bzw. Verunreinigungen mittels der Ansaugdüse(n) (10) und das Leiten dieser Fremdkörper bzw. Verunreinigungen in das Innere des Behälters (19) erlaubt.
  6. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass sie außerdem Einrichtungen (21, 22, 23) aufweist, welche die Aufnahme der im Innern des Behälters gesammelten Fremdkörper bzw. Verunreinigungen erlauben, wenn der bewegliche Schlitten (C) sich am Ende des Weges befindet.
  7. Anlage, die das Entfernen von Fremdkörpern bzw. Verunreinigungen aus einem sich bewegenden Faservlies erlaubt, dadurch gekennzeichnet, dass sie mindestens zwei Vorrichtungen (6') nach einem der Ansprüche 1 bis 4 umfasst und dass die Ansaugdüsen (10) so vorgesehen sind, dass sie sequenziell und cyclisch nacheinander gesteuert werden können.
  8. Anlage nach Anspruch 7, dadurch gekennzeichnet, dass jede Ansaugdüse (10) so angeordnet ist, dass sie mittels eines eigenen Klappenventils (16) mit Ansaugeinrichtungen (V) verbunden werden kann, und dass sie außerdem Einrichtungen (18) umfasst, die dazu bestimmt sind, die Klappenventile (16) sequenziell und cyclisch automatisch zu steuern.
  9. Anlage nach Anspruch 8, dadurch gekennzeichnet, dass die Steuerung zum Öffnen und Verschließen der Klappenventile (16) erfolgt, indem man von einer Bestimmung der Position der Ansaugdüse (10) ausgeht.
  10. Karde insbesondere für die Herstellung eines Wollfaservlieses, dadurch gekennzeichnet, dass sie mit mindestens einer Vorrichtung nach einem der Ansprüche 1 bis 6 oder einer Anlage nach einem der Ansprüche 7 bis 9 ausgestattet ist.
EP99925095A 1998-06-15 1999-06-15 Vorrichtung zum aussondern von verunreinigungen aus einem sich bewegenden faservlies und karde mit solch einer vorrichtung Expired - Lifetime EP1090172B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9807663 1998-06-15
FR9807663A FR2779743B1 (fr) 1998-06-15 1998-06-15 Dispositif permettant de retirer des dechets d'une nappe de fibres en mouvement et carde equipee d'un tel dispositif
PCT/FR1999/001424 WO1999066112A1 (fr) 1998-06-15 1999-06-15 Dispositif permettant de retirer des dechets d'une nappe de fibres en mouvement et carde equipee d'un tel dispositif

Publications (2)

Publication Number Publication Date
EP1090172A1 EP1090172A1 (de) 2001-04-11
EP1090172B1 true EP1090172B1 (de) 2002-05-22

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Application Number Title Priority Date Filing Date
EP99925095A Expired - Lifetime EP1090172B1 (de) 1998-06-15 1999-06-15 Vorrichtung zum aussondern von verunreinigungen aus einem sich bewegenden faservlies und karde mit solch einer vorrichtung

Country Status (4)

Country Link
EP (1) EP1090172B1 (de)
DE (1) DE69901562D1 (de)
FR (1) FR2779743B1 (de)
WO (1) WO1999066112A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108842333A (zh) * 2018-09-10 2018-11-20 张家港保税区宇联羊毛工业有限公司 用于羊毛加工的着色装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH99011A (de) * 1921-11-02 1923-05-01 Weinbrenner Jules Vorrichtung zum Reinigen der Kardentrommel durch Absaugen.
DE903917C (de) * 1951-03-14 1954-02-11 Artur Koltermann Vorrichtung zum Reinhalten des Kratzenbelages von Krempeln
DE1132035B (de) * 1956-11-22 1962-06-20 Tsunejiro Sakanoue Absaugvorrichtung zum Reinigen des Kratzenbeschlages von Karden
GB919851A (en) * 1959-12-12 1963-02-27 Cook & Company Manchester Ltd Improvements in or relating to carding engines
DE1510315B1 (de) * 1964-11-10 1970-05-21 Luwa Ag Absaugeinrichtung bei schnellaufenden Karden und aehnlichen Spinnereivorbereitungsmaschinen im Bereich des Abnehmers
US3520028A (en) * 1968-10-21 1970-07-14 Southern Suction & Equipment C Carding machine cleaner plenum
US4074391A (en) * 1977-01-19 1978-02-21 Jenkins Metal Corporation Crush roll plenum for carding machines
FR2705367B1 (fr) * 1993-05-19 1995-06-30 Schlumberger Cie N Dispositif de nettoyage des cylindres Morel sur une carde.

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Publication number Publication date
DE69901562D1 (de) 2002-06-27
FR2779743A1 (fr) 1999-12-17
WO1999066112A1 (fr) 1999-12-23
FR2779743B1 (fr) 2000-09-01
EP1090172A1 (de) 2001-04-11

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