EP3538697B1 - Dispositif de refroidissement pour fil synthétique - Google Patents

Dispositif de refroidissement pour fil synthétique Download PDF

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Publication number
EP3538697B1
EP3538697B1 EP17793961.8A EP17793961A EP3538697B1 EP 3538697 B1 EP3538697 B1 EP 3538697B1 EP 17793961 A EP17793961 A EP 17793961A EP 3538697 B1 EP3538697 B1 EP 3538697B1
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EP
European Patent Office
Prior art keywords
groove
cooling
thread
base
cross
Prior art date
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EP17793961.8A
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German (de)
English (en)
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EP3538697A1 (fr
Inventor
Stefan Conrad
Philip JUNGBECKER
Tobias MÜNSTERMANN
Thomas RAMAKERS
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Oerlikon Textile GmbH and Co KG
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Oerlikon Textile GmbH and Co KG
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Publication of EP3538697A1 publication Critical patent/EP3538697A1/fr
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Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J13/00—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass
    • D02J13/001—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass in a tube or vessel
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J13/00—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass
    • D02J13/003—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass by contact with at least one stationary surface, e.g. a plate
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J13/00—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass
    • D02J13/008—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass with elimination of fumes

Definitions

  • the invention relates to a cooling device for a synthetic thread, in particular a twisted thread within a texturing zone according to the preamble of claim 1.
  • cooling devices are usually used, which are designed as a curved cooling rail.
  • the largest possible radii of curvature are used on the cooling rail in order to keep the contact friction between the twisted thread and the surface of the cooling rail low.
  • Such cooling rails only use the ambient air to cool the thread. Therefore required
  • Such cooling devices have relatively long cooling sections, which usually lead to a multi-level construction of the texturing machine.
  • cooling devices are also known in which the cooling of the thread is intensified with the aid of a cooling liquid.
  • a generic cooling device is for example from EP 0 403 098 A2 known.
  • the twisted thread is guided within the texturing zone through a cooling groove on the surface of a cooling body, which holds a cooling liquid in the groove base to wet the thread.
  • the wetting on the thread promotes the frictional behavior of the thread between the thread and the contact bar, so that a transfer of twist is promoted.
  • penetration of the cooling liquid into the thread is problematic.
  • the false twist creates a dynamic of its own on the thread and makes it difficult for cooling liquid to adhere to the thread, which is only carried along by the thread and thrown off by the thread when it leaves the cooling groove.
  • insufficient cooling is achieved inside, so that in the known cooling device the yarn is then guided over a cooling rail for residual cooling.
  • EP312322 A1 describes a device for cooling a heated thread with a heat sink.
  • the heat sink has an elongated cooling groove for guiding the thread, which is connected to a dosing device for supplying a cooling liquid via a dosing opening in the groove base.
  • the cooling groove has several guide sections with a corrugated groove base and at least one guide section with a smooth groove base, which are formed alternately one behind the other.
  • the metering opening is arranged in front of one of the guide sections with a corrugated groove base in an inlet area of the cooling groove.
  • EP3312321 Al describes a cooling device for a synthetic thread, in particular a twisted thread within a texturing zone, which has an elongated cooling body with an open cooling groove for guiding the thread.
  • the cooling groove is connected to a metering device for supplying a cooling liquid via a metering opening.
  • the heat sink has at least one ceramic insert at a thread inlet, which forms a corrugated groove base within the cooling groove and on the surface of which the thread can be guided with contact, the metering opening being Ceramic insert is assigned.
  • the cooling liquid can thus be continuously fed to the thread over a longer distance.
  • WO2018 / 059743 A1 describes a method and a cooling device for cooling a synthetic thread within a texturing zone of a texturing machine.
  • a cooling liquid is introduced into a cooling groove of a cooling body, which is distributed in the groove base of the cooling groove.
  • the heated thread is guided through the cooling groove with contact.
  • the cooling liquid is fed through a metering opening in the groove base of the cooling groove depending on a thread denier of the thread, the delivery rate of cooling liquid being generated by a controllable metering means.
  • WO2018 / 065123 A1 describes a device for cooling a heated thread, wherein the thread can be guided in the groove base of an elongated cooling groove of a cooling body.
  • the cooling groove is connected to a dosing device for supplying a cooling liquid via a dosing opening in the groove base.
  • the heat sink is encapsulated in a housing and the housing has a threading slot for inserting the thread, which threading slot extends between a thread inlet and a thread outlet on the housing.
  • WO2017 / 089191 A1 describes a false twist texturing device for crimping synthetic yarn.
  • the false twist texturing device has a first delivery mechanism for pulling the thread from a supply bobbin, a heating device for heating the thread, a cooling device for cooling the thread, a false twist unit for false twisting of the thread and a second delivery mechanism for stretching the thread.
  • the cooling surface of the cooling device is formed in a longitudinal groove, a groove base of the longitudinal groove having a plurality of guide webs with fluid pockets in between.
  • DE 10 2011 018179 A1 describes a device for applying a fluid to a running multifilament thread, in which a guide groove for receiving the thread is formed on a guide body.
  • the guide body is held on a holder which has an integrated fluid connection.
  • the fluid connection is connected to a groove base of the guide groove via a nozzle bore, the nozzle bore opening into an inlet zone of the guide groove.
  • the inlet zone is followed by a wetting zone which has several groove pockets in the groove base, by means of which the groove base is divided into contact areas and non-contact areas.
  • the contact surfaces in the groove base together form a surface portion of the according to the invention Groove base in the range from 10 to 40%.
  • the contact surfaces form a radius of curvature in the longitudinal direction.
  • Another aim of the invention is to use up the cooling liquid introduced into the cooling groove to cool the thread as much as possible.
  • the cooling groove has a groove cross-section subdivided into several partial cross-sections, in which the groove walls in at least one of the partial cross-sections (guide cross-section) are parallel to one another or each inclined with an opening angle of less than 15 °.
  • the invention is based on the knowledge that the inherent dynamics of the thread caused by the false twist hinders the application of the cooling liquid or the action of the cooling liquid. Part of the cooling liquid is thrown off the thread. Furthermore, the inherent dynamics of the thread, which are mainly noticeable through twists, lead to a transverse evasive movement. There is the possibility that the twisted thread moves up the groove flanks of the cooling groove and leaves the groove base.
  • the cooling groove has a groove cross-section subdivided into several partial cross-sections, the groove walls in at least one of the partial cross-sections being designed parallel to one another or each inclined with an opening angle of less than 15 °. In this way, relatively steep groove flanks can be used within the cooling groove in order to prevent cooling liquid from being thrown out. Furthermore, despite its own dynamics, the thread remains within the cooling groove on the groove base.
  • the groove flanks each having a larger opening angle are designed to be inclined with respect to the groove flanks of the guide section. This realizes a relatively narrow guide area at the bottom of the cooling groove, in which the thread is guided with contact and comes into contact with the cooling liquid.
  • the development of the invention is particularly advantageous in which one of the partial cross-sections (insertion cross-section) forms one end of the groove flanks, the groove flanks of the insertion cross-section each being inclined with a larger opening angle compared to the groove flanks of the basic cross-section are executed.
  • a funnel-shaped opening of the cooling groove can thus be implemented in order to be able to insert the thread in a simple manner at the start of the process.
  • the further development of the invention has proven particularly useful, in which the basic cross-section and the guide cross-section of the cooling groove together form a partial groove depth of the cooling groove that is greater than 50% of a total groove depth of the cooling groove.
  • the twisted thread can thus be guided safely in the groove base of the cooling groove, with intensive consumption of the cooling liquid for cooling the thread being possible.
  • the development of the invention is preferably carried out in which the groove base of the cooling groove has several alternating longitudinal sections in the direction of the thread running direction, one of the longitudinal sections forming a corrugated groove base with a plurality of guide webs and another of the longitudinal sections being one Forms smooth groove bottom formed in the groove depth.
  • the corrugated groove bottom of one of the longitudinal sections can avoid a continuous dragging of the cooling liquid supplied to the thread.
  • the corrugation in the groove base is suitable for wiping off the non-evaporated cooling liquid residues adhering to the thread and for keeping them in the cooling groove. In this way, the thread can be evenly wetted over a longer distance, so that the cooling effects generated are intensified.
  • At least one longitudinal section with a smooth groove base is provided, in which the thread is cooled by the previously supplied cooling liquid.
  • the longitudinal sections with the smooth groove base have a greater groove depth. The thread can thus only be guided with contact on the guide webs, so that the alternately arranged longitudinal sections in the cooling groove guide the thread alternately with and without contact.
  • the length of the cooling groove is generally chosen as a function of the thread to be cooled and its thread denier. Threads with relatively large denier require relatively long cooling grooves.
  • the further development of the invention is preferably carried out in which the longitudinal sections with a corrugated groove base and the longitudinal sections with a smooth groove base each extend over a partial length of the cooling groove in the range from 10 mm to 40 mm .
  • the development of the invention is preferably carried out in which the heat sink is at a thread inlet the cooling groove has at least one ceramic insert which forms one of the longitudinal sections with a corrugated groove base within the cooling groove.
  • the thread can thus be guided over a plurality of support points which, despite intensive contact, limit the friction on the thread and do not lead to any obstruction of twist.
  • the cooling liquid is preferably supplied in an inlet zone of the groove base, which is arranged upstream of the corrugated groove base on the ceramic insert.
  • the metering opening ends in the inlet zone through which the thread with contact or preferably without contact. This enables a continuous and metered supply of the cooling liquid into the cooling groove.
  • the heat sink has at least one further ceramic insert with a corrugated groove base at a thread outlet of the cooling groove, the cooling groove having at least one of the longitudinal sections with the smooth groove base between the ceramic inserts.
  • the thread can also be guided in the cooling groove at the thread outlet with sufficient thread contact, without inadmissibly high thread friction occurring.
  • the groove base of the cooling groove on the heat sink is preferably designed in such a way that the thread can be guided in the thread running direction on a guide track with a radius in the range from 300 mm to 1000 mm. This means that very compact texturing zones can be implemented within texturing machines.
  • the heat sink can be made in several parts or in one part to form the cooling groove.
  • the cooling body is preferably formed by a cooling rail which is held within a housing between a thread inlet and a thread outlet. In this way, all vapors that occur can be intercepted in isolation from an environment.
  • the device according to the invention is therefore particularly suitable for use in texturing machines with a large number of processing points.
  • FIG. 1 a first embodiment of the cooling device according to the invention is shown schematically in several views.
  • Figure 1 shows the embodiment in a longitudinal sectional view and in FIG Figure 2 a cross-sectional view of the embodiment is shown.
  • FIG Figure 2 shows a cross-sectional view of the embodiment.
  • the exemplary embodiment has an elongated heat sink 1.
  • An open cooling groove 2 extends on a guide side of the cooling body 1.
  • the cooling groove 2 extends to the front ends of the cooling body 1.
  • the cooling groove 2 thus forms a thread inlet 13 at the front ends and a thread outlet 14 at the opposite front end, as in FIG Fig. 1 shown.
  • the cooling groove 2 has several Longitudinal sections 6.1 with a corrugated groove base 4.1 and several longitudinal sections 6.2 with a smooth groove base 4.2.
  • the longitudinal sections 6.1 and 6.2 are alternately formed in the cooling groove 2 in the thread running direction.
  • a first longitudinal section 6.1 with the corrugated groove base 4.1 is assigned to the thread inlet 13.
  • the corrugated groove base 4.1 of the first longitudinal section 6.1 is preceded by an inlet zone 11 into which a metering opening 3 opens.
  • the metering opening 3 is connected to a fluid line 5.1 via a metering channel 3.1 inside the cooling body 1.
  • the fluid line 5.1 is coupled to a metering device 5 which has a metering means 5.2 and a container 5.3.
  • the dosing means 5.2 is preferably designed as a dosing pump, a cooling liquid being held in the container 5.3.
  • the Figure 2 shows a cross section of the cooling groove 2 in the area of the length section 6.1 with the corrugated groove base 4.1.
  • the corrugated groove base 4.1 is formed here by a plurality of guide webs 8 and a plurality of grooves 9, which run essentially transversely to the cooling groove 2.
  • the groove depth of the guide webs 8 is in Figure 2 with the reference symbol t 1 and the groove depth of the grooves 9 with the reference symbol t 2.
  • the groove cross-section of the cooling groove 2 is divided into several partial cross-sections 7.1, 7.2 and 7.3.
  • the partial cross-sections 7.1, 7.2 and 7.3 of the cooling groove 2 are formed in this embodiment by a basic cross-section 7.3 forming the groove bottom 4.1, a central guide cross-section 7.2 and an upper insertion cross-section 7.1.
  • the groove flanks point in each of the partial cross-sections 7.1 to 7.3 10.1 and 10.2 have different layers.
  • the groove flanks 10.1 and 10.2 are formed parallel to one another in the region of the guide cross section 7.2, so that a guide slot is formed within the cooling groove 2.
  • the groove flanks 10.1 and 10.2 each have an opening angle ⁇ 1 in the area of the base cross section 7.3.
  • the opening angles ⁇ 1 on the groove flanks 10.1 and 10.2 are identical.
  • the groove flanks 10.1 and 10.2 are inclined in the region of the insertion cross-section 7.1 with a larger opening angle ⁇ 3 in such a way that the insertion cross-section 7.1 leads to a funnel-shaped opening of the cooling groove 2.
  • the opening angle ⁇ 3 in the area of the insertion cross-section 7.1 is thus greater than the opening angle ⁇ 1 in the area of the basic cross-section 7.3.
  • the guide cross section 7.2 and the basic cross section 7.3 of the cooling groove 2 form a partial groove depth t F.
  • the partial groove depth t F of the cooling groove is greater than 50% of the total groove depth t 1 in the area of the corrugated groove base 4.1.
  • the longitudinal sections 6.2 with a smooth groove base 4.2 have a greater groove depth in relation to the longitudinal sections 6.1 with the corrugated groove base 4.1.
  • the groove depth of the groove base 4.2 is selected such that a thread is only guided with contact on the corrugated groove base 4.1.
  • the groove bottoms 4.1 of the length sections 6.1 are arranged in the cooling groove 2 with respect to one another in such a way that a thread on a guide track with a radius in the range of 300 mm to 1000 mm can be guided.
  • the radius of curvature of the groove bottoms 4.1 is in Figure 1 with the reference character R. Reliable thread guidance is thus achieved between the thread inlet 13 and the thread outlet 14.
  • the thread is guided with contact only in the longitudinal sections 6.1 with the corrugated groove base 4.1.
  • the thread is guided without contact. This results in 2 contact zones and not contact zones in the thread guide within the cooling groove.
  • the longitudinal section 6.1 has a length L 1 which, depending on the yarn denier, has a range from 10 mm to 40 mm.
  • the length L 1 of the longitudinal section 6.1 is in Figure 1 shown.
  • the longitudinal section 6.2 also extends over a length of the cooling groove 2, which has an equal or unequal length depending on the thread denier.
  • the length is in Figure 1 with the reference character L 2 and is in the range from 10 mm to 40 mm.
  • the cooling groove 2 there follows a contact zone with the corrugated groove base 4.1 and a non-contact zone with the smooth groove base 4.2 and another longitudinal section 6.1 associated with the thread outlet 14 with a corrugated groove base 4.1.
  • the middle longitudinal section 6.1 with the corrugated groove bottom 4.1 on the one hand removes the excess cooling liquid from the thread and at the same time leads to an equalization of the wetting in order to obtain further cooling.
  • the thread is guided out of the cooling groove 2 essentially without adhering excess cooling liquid.
  • the cooling groove 2 has a groove depth t 1 in the range from 4 to 10 mm.
  • the width of the cooling groove 2, in particular in the area of the guide cross-section 7.2, is a few millimeters in order to prevent cooling liquid from being thrown out and the thread from emerging.
  • the width of the cooling groove is preferably 0.5 mm to 4 mm.
  • the illustrated embodiment of the cooling device according to the invention extends the groove cross-section of the cooling groove 2 essentially over the entire length of the cooling groove 2. In principle, however, there is also the possibility of varying the groove cross-section over the length of the cooling groove 2.
  • FIG. 2 shown groove cross-section of the cooling groove as an example.
  • Figure 3 Another exemplary embodiment of a cooling device is shown in which the groove cross section of the cooling groove 2 does not have any parallel groove flanks 10.1 and 10.2 in the area of the guide cross section 7.2.
  • the embodiment according to Figure 3 is essentially identical to the exemplary embodiment according to FIG Figure 1 and 2 so that at this Place only the cross section is shown. To avoid repetition, only the difference in the groove cross-sections is explained.
  • the groove cross section of the cooling groove 2 of the embodiment according to Figure 3 has slightly inclined groove flanks 10.1 and 10.2 in the area of the central guide cross-section 7.2.
  • the groove flanks 10.1 and 10.2 are designed to be inclined by an opening angle ⁇ 2 in the region of the guide cross section 7.2.
  • the opening angle ⁇ 2 is limited, however, in order to obtain the steepest possible wall of the groove flanks 4.1 and 4.2.
  • the opening angle ⁇ 2 is preferably below 15 °.
  • the following size ratio results in the execution of the opening angles ⁇ 1 , ⁇ 2 and ⁇ 3 .
  • the guide cross-section 7.2 and the basic cross-section 7.1 of the cooling groove 2 have a sufficient partial groove depth t F , in particular to avoid cooling liquid being thrown out.
  • the longitudinal sections 6.1 with the corrugated groove base 4.1 are integrated directly into the groove base of the cooling body 1.
  • the cooling groove 2 in the groove base 4.1 preferably has a wear protection layer in order to be able to guide the thread with contact.
  • Figure 4 and 5 another embodiment of the Shown cooling device according to the invention.
  • Figure 4 shows here schematically a longitudinal sectional view and in Figure 5 a cross-sectional view of the cooling groove is shown.
  • the further exemplary embodiment of the cooling device according to the invention likewise has an elongate cooling body 1.
  • An open cooling groove 2 extends on an upper side of the cooling body 1.
  • the cooling groove 2 extends between a thread inlet 13 and a thread outlet 14, which are formed on the front ends of the cooling body 1.
  • a ceramic insert 12.1 is held on the heat sink 1 in the cooling groove 2 at the thread inlet 13.
  • the ceramic insert 12.1 is integrated in the cooling groove and forms a corrugated groove base 4.1.
  • An inlet zone 11, which forms the thread inlet 13, is arranged upstream of the corrugated groove base 4.1.
  • a metering opening 3 opens into the inlet zone 11 of the ceramic insert 12.1.
  • the metering opening 3 is connected to a metering device 5 via a metering channel 3.1, which penetrates the ceramic insert 12.1 and the heat sink 1.
  • the metering device 5 is according to the exemplary embodiment Figure 1 and 2 executed.
  • the ceramic insert 12.1 extends within the cooling groove 2 over a partial length and forms a length section 6.1, which in Figure 4 is identified by the reference character L 1 .
  • the thread outlet 14 is also assigned a ceramic insert 12.2.
  • the ceramic insert 12.2 is integrated within the cooling groove 2 and forms a second length section 6.1 with a corrugated groove base 4.1.
  • the corrugated groove base 4.1 of the ceramic inserts 12.1 and 12.2 is essentially identical.
  • a cross-sectional view of the ceramic insert 12.1 is shown in the area of the corrugated groove base 4.1.
  • the ceramic insert 12.1 to form the cooling groove 2 is embedded in the cooling body 1 and integrated in the groove cross-section of the cooling groove 2.
  • the groove cross-section is identical to the embodiment according to FIG Figure 3 executed. In this respect, reference is made to the above description to explain the groove cross section of the cooling groove 2 and only the differences are explained at this point.
  • the basic cross section 7.3 is formed by the ceramic insert 12.1.
  • the groove flanks 10.1 and 10.2 of the ceramic insert 12.1 have an opening angle ⁇ 1 with respect to the groove base 10.1.
  • the ceramic insert 12.1 is integrated into the heat sink 1 in such a way that, in the further course of the groove cross-section, the groove flanks 10.1 and 10.2 gradually merge into one another in the area of the basic cross-section 7.3 and the guide cross-section 7.2.
  • the heat sink is usually encapsulated in a housing.
  • FIG. 11 is a schematic longitudinal sectional view and FIG Figure 7 a cross-sectional view of the cooling device is shown.
  • the cooling body 1 is formed by a cooling rail 20.
  • Several ceramic inserts 12.1 to 12.4 are integrated within the cooling rail 20.
  • the ceramic inserts 12.1 to 12.4 form the length sections 6.1 with the corrugated groove base 4.1.
  • the groove cross-section is essentially identical to the exemplary embodiment according to FIG Figure 5 .
  • the basic cross-section 7.3 containing the groove base 4.1 is formed by the ceramic inserts 12.1 to 12.4.
  • the basic cross section 7.3 is V-shaped, with the groove flanks 10.1 and 10.2 being inclined with an opening angle ⁇ 1.
  • the groove base 4.1 of the ceramic inserts 12.1 to 12.4 is formed by several grooves 9 and several guide webs 8, the thread being guided with contact on the guide webs 8. This is the one at the thread inlet 13 arranged ceramic insert 12.1 upstream of an inlet zone in which a metering opening 3 opens, as in Figure 6 shown.
  • the partial cross-sections 7.2 and 7.3 of the cooling groove 2 are identical to the embodiment according to FIG Figure 5 carried out, so that no further explanation is given at this point and reference is made to the aforementioned description.
  • the cooling rail 20 is held by a carrier 19 within a housing 15.
  • the housing 15 encloses the cooling rail 20, the cooling rail 20 being arranged within the housing 15 between a thread inlet 16 and a thread outlet 17.
  • a suction opening 21 is formed within the housing 15 in a housing base 18.
  • the suction opening 21 is arranged between the thread outlet 14 and the thread outlet 17.
  • the suction opening 21 is coupled via a suction line 22 to a suction device not shown here.
  • the housing 15 On the opposite side in the inlet area, the housing 15 has an air opening 23.
  • the air opening 23 is formed in the area between the thread inlet 16 and the thread inlet 13 of the cooling rail. The air opening 23 opens into an area surrounding the housing 15.
  • the supply of a cooling liquid is ensured by a metering device 5 which is arranged outside the housing 15.
  • the metering device 5 is designed identically to the aforementioned exemplary embodiment, so that reference is made to the aforementioned description at this point.
  • the vapors released by evaporation of the cooling liquid on the heated thread are collected inside the housing 15 and discharged via the suction opening 21.
  • a continuous stream of fresh air is introduced into the interior of the housing 15 via the air opening 23.
  • An air flow that is uniform in the direction of travel of the thread is thus established, which favors the removal of the vapors above the cooling groove 2.
  • the cooling device according to the invention for a synthetic thread, in particular a twisted thread within a texturing zone is particularly suitable to enable intensive cooling on the thread when the supplied cooling liquid is completely used up.
  • the steep-walled cooling groove ensures that the twisted thread is guided reliably in the groove base.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)

Claims (11)

  1. Dispositif de refroidissement pour un fil synthétique, en particulier un fil avec torsion à l'intérieur d'une zone de texturation, comprenant un corps de refroidissement allongé (1) qui présente une rainure de refroidissement ouverte (2) sur un côté de guidage pour guider le fil, la rainure de refroidissement (2) étant reliée par une ouverture de dosage (3) dans le fond de rainure (4.1) à un dispositif de dosage (5) pour acheminer un liquide de refroidissement, caractérisé en ce que la rainure de refroidissement (2) présente une section transversale de rainure divisée en plusieurs sections transversales partielles (7.1, 7.2, 7.3) et pour laquelle les flancs de rainure (10.1, 10.2) sont réalisés dans au moins l'une des sections transversales partielles (7.2) (section transversale de guidage) en parallèle les uns aux autres ou respectivement de manière inclinée selon un angle d'ouverture (α2) < 15°.
  2. Dispositif de refroidissement selon la revendication 1, caractérisé en ce que l'une des sections transversales partielles (7.3) (section transversale de base) forme le fond de rainure (4.1, 4.2), les flancs de rainure (10.1, 10.2) étant réalisés de manière inclinée respectivement selon un angle d'ouverture plus grand (α3) par rapport aux flancs de rainure (10.1, 10.2) de la section transversale de guidage (7.2).
  3. Dispositif de refroidissement selon la revendication 1 ou 2, caractérisé en ce que l'une des sections transversales partielles (7.1) (section transversale d'insertion) forme une extrémité des flancs de rainure (10.1, 10.2), les flancs de rainure (10.1, 10.2) de la section transversale d'insertion (7.1) étant respectivement réalisés de manière inclinée selon un angle d'ouverture plus grand (α3) par rapport aux flancs de rainure (10.1, 10.2) de la section transversale de base (7.3).
  4. Dispositif de refroidissement selon l'une quelconque des revendications 1 à 3, caractérisé en ce que la section transversale de base (7.3) et la section transversale de guidage (7.2) de la rainure de refroidissement (2) forment conjointement une profondeur de rainure partielle (tF) de la rainure de refroidissement (2) qui est supérieure à 50 % d'une profondeur de rainure totale (t1) de la rainure de refroidissement (2).
  5. Dispositif de refroidissement selon l'une quelconque des revendications 1 à 4, caractérisé en ce que le fond de rainure (4.1, 4.2) de la rainure de refroidissement (2) présente dans le sens de l'avance du fil plusieurs tronçons longitudinaux en alternance (6.1, 6.2), l'un des tronçons longitudinaux (6.1) formant un fond de rainure cannelé (4.1) doté d'une pluralité de barrettes de guidage (8), et un autre des tronçons longitudinaux (6.2) formant un fond de rainure lisse (4.2) réalisé plus bas dans la rainure de refroidissement (2).
  6. Dispositif de refroidissement selon la revendication 5, caractérisé en ce que les tronçons longitudinaux (6.1) à fond de rainure cannelé (4.1) et les tronçons longitudinaux (6.2) à fond de rainure (4.2) lisse s'étendent respectivement sur une longueur partielle de la rainure de refroidissement (2) dans une plage de 10 mm à 40 mm.
  7. Dispositif de refroidissement selon la revendication 5 ou 6, caractérisé en ce que le corps de refroidissement (1) présente au niveau d'une entrée de fil (13) de la rainure de refroidissement (2) au moins un insert céramique (12.1) qui forme à l'intérieur de la rainure de refroidissement (2) l'un des tronçons longitudinaux (6.1) à fond de rainure cannelé (4.1).
  8. Dispositif de refroidissement selon la revendication 7, caractérisé en ce que l'ouverture de dosage (3) est placée en amont du fond de rainure cannelé (4.1) au niveau de l'insert céramique (12.1) et débouche sur une zone d'entrée (11) du fond de rainure (4.1) de la rainure de refroidissement (2).
  9. Dispositif de refroidissement selon l'une quelconque des revendications 5 à 8, caractérisé en ce que le corps de refroidissement (1) présente au niveau d'une sortie de fil (14) de la rainure de refroidissement (2) au moins un insert céramique supplémentaire (12.2) doté d'un fond de rainure cannelé (4.1), la rainure de refroidissement (2) présentant entre les inserts céramique (12.1, 12.2) au moins l'un des tronçons longitudinaux (6.2) doté du fond de rainure lisse (4.2).
  10. Dispositif de refroidissement selon l'une quelconque des revendications 1 à 9, caractérisé en ce que le fond de rainure (4.1, 4.2) de la rainure de refroidissement (2) au niveau du corps de refroidissement (1) est réalisé de telle sorte que le fil peut être guidé dans le sens de l'avance du fil sur une trajectoire de guidage ayant un rayon (R) dans la plage de 300 mm à 1000 mm.
  11. Dispositif de refroidissement selon l'une quelconque des revendications 1 à 10, caractérisé en ce que le corps de refroidissement (1) est formé par un rail de refroidissement allongé (20) qui est maintenu à l'intérieur d'un boîtier (15) entre une entrée de fil (16) et une sortie de fil (17).
EP17793961.8A 2016-11-11 2017-11-06 Dispositif de refroidissement pour fil synthétique Active EP3538697B1 (fr)

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CN112011922B (zh) * 2019-05-30 2024-04-12 欧瑞康纺织有限及两合公司 一种纺织机械的利用冷却液将合成纤维冷却的冷却设备

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WO2018059743A1 (fr) * 2016-09-28 2018-04-05 Oerlikon Textile Gmbh & Co. Kg Procédé et dispositif de refroidissement d'un fil synthétique
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EP3538697A1 (fr) 2019-09-18
CN109963970B (zh) 2022-02-11
WO2018087042A1 (fr) 2018-05-17

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