EP0907774B1 - Vorrichtung zum aufbringen von flüssigkeitenauf fäden. - Google Patents

Vorrichtung zum aufbringen von flüssigkeitenauf fäden. Download PDF

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Publication number
EP0907774B1
EP0907774B1 EP97925271A EP97925271A EP0907774B1 EP 0907774 B1 EP0907774 B1 EP 0907774B1 EP 97925271 A EP97925271 A EP 97925271A EP 97925271 A EP97925271 A EP 97925271A EP 0907774 B1 EP0907774 B1 EP 0907774B1
Authority
EP
European Patent Office
Prior art keywords
plates
yarn
liquid
tank
oil
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
EP97925271A
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English (en)
French (fr)
Other versions
EP0907774A1 (de
Inventor
Roberto Bertolone
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.)
Nuova Roj Electrotex SRL
Original Assignee
Nuova Roj Electrotex SRL
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
Priority claimed from ITMI961096 external-priority patent/IT1283081B1/it
Priority claimed from IT97MI000194 external-priority patent/IT237400Y1/it
Application filed by Nuova Roj Electrotex SRL filed Critical Nuova Roj Electrotex SRL
Publication of EP0907774A1 publication Critical patent/EP0907774A1/de
Application granted granted Critical
Publication of EP0907774B1 publication Critical patent/EP0907774B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B1/00—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating
    • D06B1/10—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by contact with a member carrying the treating material
    • D06B1/12—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by contact with a member carrying the treating material by rubbing contact, e.g. with brushes or pads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H71/00—Moistening, sizing, oiling, waxing, colouring or drying filamentary material as additional measures during package formation
    • B65H71/007—Oiling, waxing by applying liquid during spooling
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03J—AUXILIARY WEAVING APPARATUS; WEAVERS' TOOLS; SHUTTLES
    • D03J1/00—Auxiliary apparatus combined with or associated with looms
    • D03J1/04—Auxiliary apparatus combined with or associated with looms for treating weft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • the present invention concerns a device to apply liquids for treating yarns.
  • the invention relates to an oiler for yarns (whether obtained from tuft textile fibres, or from continuous synthetic filaments) and, especially, to an oiler for weft yarns fed to shuttleless looms. Therefore, although hereinafter reference is made above all to the oiling of yarns, it is however understood that the device can be used to apply any other treatment liquids.
  • liquid paraffin oils has subsequently allowed to overcome the above drawbacks, making it also possible to add emulsifying and/or antistatic agents.
  • a treatment has generally been carried out with a device comprising a vessel for the paraffinic liquid, and a roving or band of felt or of textile material, or like, which extracts the oil by capillarity from the vessel and spreads it by direct contact over the outwardly moving yarn. Solutions of this type are described in GB-398191 and in FR-934452. More recently, in said devices, the paraffin oils have been replaced by synthetic oils which give better results.
  • EP-B1-340746 describes a device comprising: an oil container closed by a cover; a roving or a felt band having at least a vertical length, with the lower end plunged into the oil, and a generally horizontal length positioned beneath the cover of the container; and a distributing head, positioned beneath the cover of the container and above the yarn path, consisting of a filtering membrane onto the surface of which rests the roving, and of an element apt to press the roving onto said membrane, the path of the yarn being such that it laps the membrane from underneath onto its outer surface.
  • Another device adopting a felt strip is described in the more recent EP-715014.
  • the present invention concerns a device to apply liquids, particularly oil, on yarns - to be preferably mounted upstream of yarn feeders for looms - comprising at least one tank for the liquid and a liquid distribution unit, characterized in that said liquid distribution unit consists of two plates, partially plunged into the liquid of the tank and having substantially flat cooperating surfaces, drawn close and apt to define a gap of a width apt to cause the liquid to rise by capillarity, means being provided to guide the yarn and cause it to slide in correspondence of the end of said gap opposite to that plunged into the liquid.
  • Said yarn guiding means preferably consist of a pair of opposite eyelets, positioned at the two ends of the yarn path inside the device.
  • said cooperating plates extend verticalwise, and their facing surfaces are slightly curved - one being concave and the other one convex - and preferably chromium plated.
  • the tank for the liquid is divided into two compartments, connected through a duct, and the liquid level in the two communicating compartments can be regulated through an overflow provided into one of said compartments.
  • one of the two cooperating plates is movable by means of a screw, to allow adjusting its distance from the other plate.
  • the device of the invention comprises a pressure head acting on the yarn, the position of which can be adjusted in order to vary the yarn length sliding in correspondence of the end of the gap - between the two cooperating surfaces of said plates - opposite to that plunged into the liquid.
  • the device according to the invention can moreover comprise means apt to remove the weft yarn from said cooperating plates in case of occasional loom stops.
  • Said means may consist of a dandy roll, loaded with a force which is less strong than that produced thereon by the tension of the yarn, when this latter is drawn from the yarn feeder.
  • the device to apply liquids on yarns will be described hereinafter in relation to its use as an oiler of textile yarns to be associated, in particular, to yarn feeders for looms.
  • said device comprises an oil tank divided into two compartments 1 and 2, reciprocally connected through a duct 3.
  • the tank compartment 1 is fed with a suitable oil - generally a synthetic oil - from a pump (not shown), through an inflow pipe 4, and it comprises an overflow 5.
  • a suitable oil - generally a synthetic oil - from a pump (not shown)
  • an inflow pipe 4 and it comprises an overflow 5.
  • the tank compartment 2 there are partially plunged two plates 6 and 7, extending verticalwise and positioned parallel and facing each other, so as to define a gap between them, said plates forming the oil distribution unit.
  • the plate 6 is substantially flat, while the plate 7 is shorter than the plate 6 and is bent at right angles at its end opposite to that plunged into the oil.
  • the two facing and cooperating plates 6 and 7 are of the same length and they each comprise a beveling at their end opposite to that plunged into the oil, external to the tank, said bevelings facing each other and being preferably concave (as shown in fig. 5).
  • the plates 6 and 7 are suitably chromium plated (but they could also be made of other suitable material, for example a ceramic material) and their parallel and facing cooperating surfaces are mutually spaced by 0 to 1 mm, and preferably by 0 to 0.5 mm.
  • said cooperating surfaces of the plates 6 and 7 are slightly curved - as shown in fig. 3 - the surface of the plate 6 being convex and the surface of the plate 7 being concave.
  • the tank compartments 1 and 2 are provided with a cover 8, whose function is to prevent dust from penetrating into said compartments, so as to reduce to a minimum the forming of dirt and of oil/dust mixtures.
  • a cover 8 whose function is to prevent dust from penetrating into said compartments, so as to reduce to a minimum the forming of dirt and of oil/dust mixtures.
  • the end of the plate 7 bent at right angles bears onto said cover 8, as shown in fig. 1.
  • the weft yarn 9 to be oiled is caused to slide along the upper end of the gap defined by the two facing surfaces of the plates 6 and 7; thus, in the case of the variant of fig. 4, also along the outer edge of the plate 7 bent at right angles, said yarn being guided by a pair of eyelets 10 and 11 (figs. 2 and 3) and by its own tension.
  • the plate 7 bent at right angles comprises two peripheral bulges 7A (figs. 2 and 4).
  • the distance between the plates 6 and 7 is adjustable, so as to allow varying the width of the gap defined by said plates.
  • the plate 6 is movable in respect of the plate 7 by means of a screw 12 operated with a handle 13.
  • the whole device is supported by an articulated clamp 14 and is fixed with a bracket 15 upstream of the loom yarn feeder.
  • Fig. 2 also shows the means allowing to remove the weft yarn 9 from the oiling zone in case of loom stops.
  • said means consist of a dandy roll 16, pivoted on a screw 17 and loaded with a force which is slightly weaker than that produced on said roll by the tension of the weft yarn 9.
  • the oil is fed from the appropriate pump into the tank compartment 1 through the inflow pipe 4. From said compartment, the oil flows through the duct 3 into the tank compartment 2, filling also this latter. Following the principle of communicating vessels, the oil level in the tank compartments 1 and 2 will be exactly the same. On reaching the level L, the excess oil flows back, through the overflow 5, into the oil tank from which the pump is fed. In this way, the oil in the two tank compartments 1 and 2 always remains at a constant level. The two plates 6 and 7 are thus plunged for most of their length into the tank compartment 2.
  • the oil is caused to rise by capillarity along the gap between the parallel facing surfaces of the plates 6 and 7, up to reaching the top of said gap.
  • the oil reaches the upper edge of the plate 7 bent at right angles; whereas, in the second variant (fig. 5), the oil reaches the point of convergency of the two top bevelings of the plates 6 and 7.
  • the yarn 9 slides along these particular zones, whereby the liquid from the tank compartment 2, in the specific case oil, is applied thereon as required. The weft yarn 9 is thus oiled in the most efficient manner.
  • the oil flow on the weft yarn 9 can also be regulated, according to requirements, by reducing or increasing the distance between the parallel facing surfaces of the plates 6 and 7, through the adjusting screw 12. It is thus possible to easily determine at will the oiling degree for each specific weft yarn 9, according to its characteristics, with the evident advantages deriving therefrom.
  • the use of the dandy roll 16, apt to remove the weft yarn 9 from the plates 6 and 7 in case of occasional loom stops, results to be particularly advantageous.
  • Said dandy roll is pivoted on the screw 17 in such a way that, when being lifted, it follows a circle arc, removing the yarn 9 from the oiling zone; this is particularly helpful to avoid too much soaking of the yarn.
  • the dandy roll 16 is loaded with a force which is less strong than that produced thereon by the tension of the yarn 9.
  • the device according to the invention comprises - to simplify the structure - a single tank 22 filled with liquid, for example oil, into which are partially plunged two plates 26 and 27, whose surfaces are usually chromium plated or of ceramic material, said plates being separated by a very narrow gap whose width can be adjusted by known means, for instance a suitable adjusting screw (not shown on the drawings).
  • the tank 22 is supported by a bracket 25, hinged onto a support 25A connected to the loom body, and it is closed at the top by a fixed cover 28, which protects the oil from the external dust often accompanying the actual yarn 29 having to be oiled.
  • the yarn 29, normally a weft yarn, is guided along the top of the gap between the two plates 26 and 27 by two opposite, self-threading eyelets 30 and 31.
  • the two eyelets 30 and 31 are not aligned, but they are positioned at considerably different heights.
  • said cover carries an inwardly facing pressure head 41, caused to contact the yarn 29 and the position of which can be adjusted by a screw 42, apt to be operated externally to said cover 40.
  • the tank 22 is filled in any known manner. It can, for example, be divided into two compartments connected through a duct, one of them being fed by a pump, and the level of the liquid (oil) in said tank is regulated by an overflow, as described for the previous embodiment of the device illustrated in figs. 1 to 5. As said, the two plates 26 and 27 are partially plunged into the tank 22. Thanks to the gap formed between them, the oil contained in the tank 22 rises by capillarity, up to reaching the end of said gap along which the yarn 29 is sliding; in this position, the required amount of oil can thus be applied on the yarn 29.
  • the two eyelets 30 and 31, which guide the yarn 29 to slide inside the device, are in a slightly offset position, being at different heights; through said eyelets the yarn is thus led, only to a limited extent, in contact with the zone where the oil is applied thereon.
  • the pressure head 41 to vary the length of the yarn stretch sliding along the zone of oil application, in correspondence of the end of the gap between the two plates 26 and 27.
  • Said head 41 acts on the yarn 29, in the sense of pushing it in the direction of the arrow F. The more the head 41 is pushed forward in the direction F, the longer the stretch of yarn 29 being in contact with the zone of oil application and, consequently, the greater the amount of oil being applied on said yarn.
  • the device of the present invention allows to apply oil - or any other type of treating liquid - on a yarn, in a full and continuous manner, thereby overcoming the drawbacks of the known prior art devices.
  • the use of chromium plated surfaces or of ceramic surfaces to spread the oil (or other liquid) highly reduces, if not fully eliminates, the problems of wear connected to the use of fabrics and of felts.
  • chromium plated surfaces - as opposed to solid paraffin and to fabrics and felts - are far less subject to soiling and can anyhow be perfectly cleaned again, thus preventing the weft yarn from getting soiled and the forming of oil/dust mixtures, which could create friction and break the yarn.
  • the device according to the present invention is moreover extremely simple and economic, and requires far less maintenance than the devices of prior art.
  • the invention is not limited to the special embodiments described heretofore, which merely form non-limiting examples of its scope, but that many variants can be introduced, all within reach of a person skilled in the art, without thereby departing from the scope of the present invention.
  • the screw 12 in the embodiment of figs. 1 to 5
  • the screw 42 in the embodiment of figs. 6 and 7
  • to proportion the amount of oil being applied on the yarn could be automatically operated, for instance in relation to yarn speed and/or to the braking effect meant to be produced on the yarn in the loom yarn feeder.
  • the position of at least one of the eyelets 10, 11, or 30, 31, could be adjustable, so as to deviate the path of the yarn 9, or 29, in respect of the plates 6, 7, and 26, 27, and consequently vary the amount of oil being applied on said yarn.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Looms (AREA)

Claims (22)

  1. Vorrichtung zum Auftragen von Flüssigkeiten, insbesondere von Öl, auf Fäden (9; 29), die insbesondere oberhalb von Fadenzuführunhgseinrichtungen für Webstühle anzubringen ist, mit zumindest einem Tank (1,2; 22) für die Flüssigkeit, und mit einer Flüssigkeitsverteileinheit, dadurch gekennzeichnet, daß die Flüssigkeitsverteileinheit aus zwei Platten (6, 7; 26, 27) besteht, die teilweise in die Flüssigkeit des Tanks (2; 22) eintauchen und im wesentlichen ebene, miteinander zusammenwirkende Oberflächen aufweisen, die sich nahe beieinander befinden und dazu bestimmt sind, einen Spalt zu bilden, der eine Breite aufweist, derart daß die Flüssigkeit dazu veranlaßt wird, aufgrund von Kapillarität aufzusteigen, wobei Mittel (10, 11; 30, 31) vorgesehen sind, um den Faden (9; 29) zu führen und ihn zu veranlassen, in Übereinstimmung mit dem Ende des Spalts zwischen den beiden Platten, das demjenigen Ende, das in die Flüssigkeit eingetaucht ist, gegenüberliegt, zu gleiten.
  2. Vorrichtuug nach Anspruch 1, dadurch gekennzeichnet, daß die Mittel zum Führen des Fadens (9; 29) und um ihn zu veranlassen, in Übereinstimmung mit dem Ende des genannten Spalts zwischen den Platten (6, 7; 26, 27) zu gleiten, aus einem Paar einander gegenüberliegend angeordneter Ösen (10, 11; 30, 31) bestehen, die an den beiden Enden des Fadenwegs in der Vorrichtung angeordnet sind.
  3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß die Ösen (10, 11; 30, 31) selbsteinfädelnde Ösen sind.
  4. Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die zueinander weisenden Oberflächen der genannten Platten (6, 7; 26, 27) leicht gekrümmt sind.
  5. Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, daß eine der Oberflächen der genannten Platten (6, 7; 26, 27) konkav ist und die andere konvex ist.
  6. Vorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die beiden Platten (6, 7; 26, 27) sich in vertikaler Richning erstrecken.
  7. Vorrichtung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß eine (6) der genannten beiden Platten in Bezug auf die andere Platte (7) vorsteht, welche an ihrem Ende, das demjenigen, das in die Flüssigkeit eintaucht, gegenüberliegt, rechtwinklig abgebogen ist.
  8. Vorrichtung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Platten (6, 7) in gleichem Maße aus der Flüssigkeit des Tanks (1, 2) vorstehen und jeweils an ihrem oberen Ende eine Anschrägung aufweisen, die zu der anderen Platte weist.
  9. Vorrichtung nach Anspruch 8, dadurch gekennzeichnet, daß die Anschrägung der Platten (6, 7) eine konkave Anschrägung ist.
  10. Vorrichtung nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß die Platten (6, 7; 26, 27) chromplattierte Oberflächen aufweisen.
  11. Vorrichtung nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß die Platten (6, 7; 26, 27) keramische Oberflächen aufweisen.
  12. Vorrichtung nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, daß die parallelen, zueinander weisenden Oberflächen der Platten (6, 7; 26, 27) einen gegenseitigen Abstand von zwischen 0 und 1,0 mm aufweisen.
  13. Vonichtung nach Anspruch 1], dadurch gekennzeichnet, daß die genannten Flächen einen gegenseitigen Abstand von zwischen 0 und 0,5 mm aufweisen.
  14. Vorrichtung nach einem der Ansprüche 1 bis 13, dadurch gekennzeichnet, daß eine (6) der Platten (6, 7) mittels einer Schraube (12) bewegbar ist, um eine Einstellung ihres Abstands von der auderen Platte (7) zu ermöglichen.
  15. Vorrichtung nach einem der Ansprüche 1 bis 13, dadurch gekennzeichnet, daß ein Druckkopf (41) vorhanden ist, der auf den Faden (29) wirkt, wobei dessen Position eingestellt werden kann, um die Fadenlänge in Kontakt mit dem Ende des Spalts zwischen den genannten Platten (26, 27) zu verändern.
  16. Vorrichtung nach Anspruch 15, dadurch gekennzeichnet, daß die Position des genannten Druckkopfs (41) mittels einer Schraube (42) eingestellt wird.
  17. Vorrichtung nach einem der Ansprüche 1 bis 13, 15 oder 16, dadurch gekennzeichnet, daß die Fadenführungsösen (30, 31) an versetzten Höhen angeordnet sind.
  18. Vorrichtung nach einem der Ansprüche J bis 13, 15 oder 17, dadurch gekennzeichnet, daß der Druckkopf (41) von einer Abdeckung (40) der Vorrichtung vorstehend montiert ist, wobei seine Position von außerhalb der Abdeckung eingestellt werden kann.
  19. Vorrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß der Tank für die Flüssigkeit in zwei Abteilungen (1, 2) unterteilt ist, die durch eine Leitung (3) verbunden sind.
  20. Vorrichtung nach Anspruch 19, dadurch gekennzeichnet, daß eine (1) der beiden miteinander verbundenen Abteilungen (1, 2) einen Überlauf (5) aufweist.
  21. Vorrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß ein Mittel (16) vorhanden ist, um den Schußfaden (9) von den miteinander zusammenwirkenden Platten (6, 7) im Falle von unbeabsichtigten Anhaltevorgängen des Webstuhls zu entfernen.
  22. Vorrichtung nach Anspruch 21, dadurch gekennzeichnet, daß die genannten Mittel aus einer Abtropfwalze (16) bestehen, die mit einer Kraft belastet ist, die weniger stark ist als die Wirkungen, die auf die genannte Walze (16) aufgrund der Spannung des Fadens (9) ausgeübt wird, wenn dieser von der Fadenzuführungseinrichtung gezogen wird.
EP97925271A 1996-05-30 1997-05-28 Vorrichtung zum aufbringen von flüssigkeitenauf fäden. Expired - Lifetime EP0907774B1 (de)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
ITMI961096 IT1283081B1 (it) 1996-05-30 1996-05-30 Dispositivo per l'applicazione di liquidi a fili tessili
ITMI961096 1996-05-30
ITMI970194U 1997-03-18
IT97MI000194 IT237400Y1 (it) 1997-03-18 1997-03-18 Dispositivo per l'applicazione di liquidi a fili tessili
PCT/IT1997/000122 WO1997045578A1 (en) 1996-05-30 1997-05-28 Device to apply liquids on yarns

Publications (2)

Publication Number Publication Date
EP0907774A1 EP0907774A1 (de) 1999-04-14
EP0907774B1 true EP0907774B1 (de) 2001-10-31

Family

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Application Number Title Priority Date Filing Date
EP97925271A Expired - Lifetime EP0907774B1 (de) 1996-05-30 1997-05-28 Vorrichtung zum aufbringen von flüssigkeitenauf fäden.

Country Status (3)

Country Link
EP (1) EP0907774B1 (de)
DE (1) DE69707875T2 (de)
WO (1) WO1997045578A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9817980D0 (en) 1998-08-18 1998-10-14 Fibrevision Limited Measuring instrument
ITMO20130085A1 (it) * 2013-04-02 2014-10-03 Maurizio Trentanove Dispositivo per la lubrificazione di filati per la tessitura

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB398191A (en) * 1932-03-07 1933-09-07 British Celanese Improvements in the treatment of filamentary textile materials
GB634780A (en) * 1944-07-08 1950-03-29 Carlos Luria Process for coating threads of textile materials
IT1217497B (it) * 1988-05-05 1990-03-22 Roy Electrotex Spa Dispositivo paraffinatori di fili tessili,in particolare di fili di trama in telai senza navette
IT1267181B1 (it) * 1994-12-02 1997-01-28 Lgl Electronics Spa Dispositivo di lubrificazione del filato di trama per telai di tessitura

Also Published As

Publication number Publication date
WO1997045578A1 (en) 1997-12-04
EP0907774A1 (de) 1999-04-14
DE69707875D1 (de) 2001-12-06
DE69707875T2 (de) 2002-04-11

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