EP1090172B1 - Dispositif permettant de retirer des dechets d'une nappe de fibres en mouvement et carde equipee d'un tel dispositif - Google Patents
Dispositif permettant de retirer des dechets d'une nappe de fibres en mouvement et carde equipee d'un tel dispositif Download PDFInfo
- 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
- Authority
- 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
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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.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Preliminary Treatment Of Fibers (AREA)
Description
De manière connue, le dispositif de l'invention comporte
- un cylindre de transport ayant pour fonction de supporter et de transporter la nappe de fibres contenant les déchets,
- un bac longiligne pour la réception des déchets,
- et un organe qui est positionné à la périphérie du cylindre de transport, et qui a pour fonction de retirer des déchets de la nappe de fibres en mouvement et de les expulser en direction du bac de réception.
- la figure 1 est une vue schématique générale d'une carde laine équipée de trois dispositifs échardonneurs de l'invention,
- la figure 2 est une vue plus détaillée d'un dispositif échardonneur de la carde de la figure 1,
- la figure 3 est une représentation schématique des moyens utilisés pour la commande séquentielle des buses d'aspiration des trois dispositifs échardonneurs de la carde de la figure 1,
- la figure 4 est une vue schématique d'une carde équipée d'un dispositif échardonneur de l'invention avec chariot mobile permettant la collecte intermédiaire des déchets,
- la figure 5 est une vue de côté du dispositif échardonneur de la figure 4,
- la figure 6 est une vue de dessus du dispositif échardonneur des figures 4 et 5,
- et la figure 7 est une représentation d'une autre variante de réalisation d'un dispositif échardonneur de l'invention, avec caisson aspirant fixe.
- pour chaque cylindre Morel 7, un cylindre chasseur 8 associé à un bac de réception 9,
- un chariot mobile C comprenant un caisson 19 de collecte des déchets sur lequel sont montées deux paires de buses d'aspiration 10, chaque paire de buses d'aspiration étant dédiée au nettoyage d'un bac de réception 9, et chaque buse 10 étant raccordée avec l'intérieur du caisson de collecte 19.
Claims (10)
- Dispositif permettant de retirer des déchets d'une nappe de fibres en mouvement, du type comportant :un cylindre de transport (1 ; 7) ayant pour fonction de supporter et transporter la nappe de fibres contenant les déchets,un bac longiligne (9) pour la réception des déchets,et un organe (8) qui est positionné à la périphérie du cylindre de transport, et qui a pour fonction de séparer les déchets de la nappe de fibres en mouvement et de les expulser en direction du bac de réception,
- Dispositif selon la revendication 1 caractérisé en ce que le fond (9b) du bac de réception (9) présente une surface supérieure concave, en ce que la buse d'aspiration (10) est montée à l'aplomb de la partie du fond où la pente de la surface supérieure concave s'inverse, et en ce que sur l'extrémité d'aspiration (11a) de la buse (10) est monté au moins un racloir externe (13).
- Dispositif selon la revendication 1 ou 2 caractérisé en ce que la buse d'aspiration (10) est distante et ne vient pas au contact du fond (9b) du bac de réception (9).
- Dispositif (6') selon l'une des revendications 1 à 3 caractérisé en ce qu'il comprend un caisson aspirant (27) fixe, qui est pourvu d'une fente longitudinale (27a) s'étendant parallèlement au trajet de la buse d'aspiration (10), et fermée par deux lèvres souples (28), et en ce que la buse d'aspiration (10) est raccordée avec l'intérieur du caisson aspirant (27) par l'intermédiaire d'une buse d'échappement d'air (26) qui est insérée entre les deux lèvres souples (28).
- Dispositif (6''') selon l'une des revendications 1 à 3 caractérisé en ce que la ou les buses d'aspiration (10) sont montée sur un chariot mobile (C), qui comprend d'une part un caisson de collecte (19) des déchets, chaque buse d'aspiration (10) étant raccordée avec l'intérieur du caisson de collecte (19), et d'autre part des moyens d'aspiration (V') permettant de capter des déchets via la ou les buses d'aspiration (10) et d'acheminer ces déchets à l'intérieur du caisson (19).
- Dispositif selon la revendication 5 caractérisé en ce qu'il comprend en outre des moyens (21, 22 , 23) permettant la reprise des déchets collectés à l'intérieur du caisson, lorsque le chariot mobile (C) est en bout de course.
- Installation permettant de retirer les déchets d'une nappe de fibres en mouvement caractérisée en ce qu'elle comporte au moins deux dispositifs (6') selon l'une des revendications 1 à 4, et en ce que les buses d'aspiration (10) sont prévues pour être commandées de manière séquentielle et cyclique l'une après l'autre.
- Installation selon la revendication 7 caractérisée en ce que chaque buse d'aspiration (10) est prévue pour être raccordée, au moyen d'un clapet (16) qui lui est propre, à des moyens d'aspiration (V), et en ce qu'il comprend en outre des moyens (18) conçus pour commander automatiquement de manière séquentielle et cyclique les clapets (16).
- Installation selon la revendication 8 caractérisée en ce que la commande de l'ouverture et de la fermeture des clapets (16) est réalisée à partir d'une détection de la position des buses d'aspiration (10).
- Carde, en particulier pour la formation d'une nappe de fibres de laine, caractérisée en ce qu'elle est équipée d'au moins un dispositif selon l'une quelconque des revendications 1 à 6, ou d'une installation selon l'une des revendications 7 à 9.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
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 |
FR9807663 | 1998-06-15 | ||
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 (fr) | 2001-04-11 |
EP1090172B1 true EP1090172B1 (fr) | 2002-05-22 |
Family
ID=9527520
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99925095A Expired - Lifetime EP1090172B1 (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 |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1090172B1 (fr) |
DE (1) | DE69901562D1 (fr) |
FR (1) | FR2779743B1 (fr) |
WO (1) | WO1999066112A1 (fr) |
Families Citing this family (1)
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)
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. |
-
1998
- 1998-06-15 FR FR9807663A patent/FR2779743B1/fr not_active Expired - Fee Related
-
1999
- 1999-06-15 DE DE69901562T patent/DE69901562D1/de not_active Expired - Lifetime
- 1999-06-15 EP EP99925095A patent/EP1090172B1/fr not_active Expired - Lifetime
- 1999-06-15 WO PCT/FR1999/001424 patent/WO1999066112A1/fr active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
DE69901562D1 (de) | 2002-06-27 |
FR2779743B1 (fr) | 2000-09-01 |
FR2779743A1 (fr) | 1999-12-17 |
WO1999066112A1 (fr) | 1999-12-23 |
EP1090172A1 (fr) | 2001-04-11 |
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