EP2665849B1 - Device for cooling down a plurality of synthetic threads - Google Patents

Device for cooling down a plurality of synthetic threads Download PDF

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Publication number
EP2665849B1
EP2665849B1 EP11706563.1A EP11706563A EP2665849B1 EP 2665849 B1 EP2665849 B1 EP 2665849B1 EP 11706563 A EP11706563 A EP 11706563A EP 2665849 B1 EP2665849 B1 EP 2665849B1
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EP
European Patent Office
Prior art keywords
cooling
cylinder
wall
partition
blow box
Prior art date
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Not-in-force
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EP11706563.1A
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German (de)
French (fr)
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EP2665849A1 (en
Inventor
Markus Reichwein
Kazim ÖGRÜNC
Roland Nitschke
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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 EP2665849A1 publication Critical patent/EP2665849A1/en
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Publication of EP2665849B1 publication Critical patent/EP2665849B1/en
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/08—Melt spinning methods
    • D01D5/088—Cooling filaments, threads or the like, leaving the spinnerettes
    • D01D5/092—Cooling filaments, threads or the like, leaving the spinnerettes in shafts or chimneys

Definitions

  • the invention relates to a device for cooling a plurality of synthetic threads according to the preamble of claim 1.
  • a generic device for cooling a plurality of synthetic threads with a plurality of cooling cylinders is for example from DE 10 2009 034 061 A1 known.
  • a plurality of cooling cylinders are arranged side by side within a blow box.
  • the cooling cylinders are arranged below a spinning beam and associated coaxially with several spinneret packages.
  • the cooling cylinders each have a gas-permeable cylinder wall, so that the filament strands of the thread for cooling pass through the cooling cylinder from an upper thread inlet opening to a lower thread outlet opening and can be uniformly cooled on all sides.
  • each individual thread can be cooled by individual generated cooling air streams.
  • several cooling zones are formed within the cooling cylinder by a partition wall.
  • the filament bundles of several threads can be cooled simultaneously within one of the cooling cylinder after melt spinning immediately.
  • At least one of the cooling cylinder has on its gas-permeable cylinder wall a plurality of gas-impermeable partitions which extend between the thread openings and offset from each other on the circumference of the cooling cylinder.
  • the invention has the particular advantage that zones are created by the gas-impermeable partitions within the cooling cylinder, in which no direct supply of cooling air takes place.
  • separation zones can be created within the cooling cylinder in which no direct inflow of the cooling air takes place via the cylinder wall of the cooling cylinder.
  • Such separation zones are particularly suitable for obtaining a cooling zone distribution within the cooling cylinder.
  • the separating webs are arranged offset from one another on the cooling cylinder and that between the separating webs within the cooling cylinder at least one partition is arranged, which divides the cooling cylinder into several separate cooling zones.
  • the partition wall is held in the separation zones generated by the separating webs, so that interactions with the incoming cooling air are avoided.
  • the partitions are preferably offset by an angle of 180 ° held on the circumference of the cooling cylinder, so that essentially two equal cooling zones arise.
  • the dividing wall is preferably held within the cooling cylinder in the middle of the separating webs, wherein the dividing webs have a width in the circumferential direction which is greater than a wall thickness of the dividing wall.
  • the width of one of the partitions should be at least several times greater than the wall thickness of the partition wall inside the cooling cylinder. This can be advantageous to avoid turbulent edge flows on the partition.
  • the formation of the device according to the invention is particularly advantageous, in which the cooling cylinder has a double-walled cylinder wall, wherein an outer wall of a perforated plate and an inner wall formed of a wire mesh are, and in which the partitions are formed by a plurality of unperforated sheet metal zones in the perforated plate of the cooling cylinder.
  • the cooling cylinder has a double-walled cylinder wall, wherein an outer wall of a perforated plate and an inner wall formed of a wire mesh are, and in which the partitions are formed by a plurality of unperforated sheet metal zones in the perforated plate of the cooling cylinder.
  • a homogenization of the incoming cooling air flows is achieved by the double walledness.
  • the supply of cooling air through the perforation of the perforated plate and the non-perforated sheet metal zones is determined.
  • separating webs by separate separating strips, which are fastened from the outside or from the inside to the cylinder wall of the cooling cylinder.
  • separating strips can be designed, for example, as adhesive strips, fabric strips or plastic plates. This also makes it possible to retrofit cooling cylinders already in operation with dividing webs.
  • the development of the invention is preferably carried out in which the partition wall is replaceably connected to the blow box.
  • the cooling cylinder can be used individually for cooling one or more threads.
  • a cleaning of the partition, on the surface of which, for example, monomer contaminants could adhere, can be carried out without further dismantling.
  • the handling of the device according to the invention can be improved in particular by the development of the invention, in which the partition wall has an insertion end and a retaining end protruding from the thread exit opening.
  • the holding end forms a holding web which extends transversely to the yarn outlet opening and which is releasably connected to the underside of the blow box.
  • the blow box comprises an upper cooling chamber with a cooling cylinder and a lower distribution chamber with a connection for the cooling air generator
  • the blow box comprises an upper cooling chamber with a cooling cylinder and a lower distribution chamber with a connection for the cooling air generator
  • the injected via the cooling air generator cooling air from the distribution chamber via a perforated plate is introduced uniformly over the entire cross section of the cooling chamber, so that the entire environment of the cooling cylinder are supplied evenly within the cooling chamber with a fresh air stream.
  • the cooling cylinder In the event that already in operation cooling devices are to switch to a multi-filament cooling, it is possible to replace the cooling cylinder held in the blow box.
  • the cooling cylinder In order to be able to carry out, in particular, the cooling of a plurality of threads within a cooling cylinder, the cooling cylinder has a plurality of gas-impermeable partitions on the cylinder wall, which extend between the thread openings and are offset relative to one another on the circumference.
  • the development of the cooling cylinder is particularly advantageous, in which the cylinder wall is double-walled, in which an outer wall of a perforated plate and an inner wall of a wire mesh is formed and in which the separating webs by several Unperforated sheet metal zones are formed in the perforated plate.
  • the wire mesh leads to an orientation of the flow substantially transversely to the guided within a cooling cylinder filament strands.
  • separating webs formed on the cylinder wall detachably by separating strips which are fastened from the outside or from the inside to the cylinder wall.
  • the device according to the invention and the described cooling cylinder are particularly suitable for simultaneously cooling a plurality of threads within a cooling cylinder.
  • the threads can be produced both to a POY yarn and to a FDY yarn or to an IDY yarn.
  • a first embodiment of the inventive device for cooling a plurality of synthetic filament bundles is shown.
  • the device is schematically in an overall view from a bottom
  • Fig. 2 schematically in a cross-sectional view
  • Fig. 3 schematically shown in a longitudinal sectional view.
  • the exemplary embodiment has a blow box 1 which carries a plurality of cooling cylinders 7 arranged side by side in a row-like arrangement.
  • Each of the cooling cylinders 7 forms an upper thread inlet openings 2 and a corresponding lower thread outlet openings 9.
  • the cooling cylinders 7 are arranged in a cuboidal upper part 5 of the blow box 1, which cooperates with a cuboid lower part 4.
  • the upper part 5 and the lower part 4 are connected in a parting line 19 by a flange 18 to the closed blow box 1.
  • a perforated plate 8 is arranged between the lower part 4 and the upper part 5, the lower part 4 of the Upper part 5 separates.
  • the perforated plate 8 has in the region of the thread outlets 9 of the cooling cylinder 7 corresponding openings.
  • the ends of the cooling cylinder 7 are sealingly connected to the upper part 5 and the perforated plate 8.
  • the Fadenauslassö réelleen 9 of the cooling cylinder 7 cooperate with a plurality of yarn outlet openings 15 on an underside of the blow box 1.
  • a plurality of pipe socket 14 are held with closed walls between the perforated plate 8 and the underside of the blow box 1 within the lower part 4, wherein the pipe socket 14 each form the lower yarn outlet openings 15.
  • a connection channel 3 is connected, through which a cooling air in the lower part 4 of the blow box 1 can be fed.
  • the upper part 5 forms a cooling chamber, through which a cooling air is led to cool the threads.
  • the lower part 4 forms a distribution chamber which is directly connected to a cooling air generator e.g. An air conditioner is connected.
  • the blow box a total of ten thread outlet openings 15.
  • Each of the yarn outlet openings 15 is therefore associated with one of the cooling cylinders 7, so that a total of ten cooling cylinders 7 are contained in the upper part 5 of the blow box 1.
  • the number of thread openings 2 and 15 and the row-shaped arrangement of the cooling cylinder 7 within the blow box 1 are exemplary. Thus, fewer or more threadlines and multi-row arrangements may be provided with staggered to each other cooling cylinders.
  • each have a partition wall 31 is held, which divides the cooling cylinder 7 into two separate cooling zones 32.1 and 32.2.
  • the partition wall 31 in this case extends substantially from the upper thread inlet opening 2 to the thread outlet openings 15 of the blow box 1.
  • the dividing wall 31 projects with an upper insertion end 33 up to the top of the Blaskastens 1.
  • the opposite holding end 34 of the partition wall 31 protrudes from the thread outlet opening 15 and forms a holding web 35 outside of the blast box 1.
  • the holding web 35 extends at the end of the partition wall 31 transversely to the yarn outlet opening 15.
  • a releasable holding device 36 is formed, through which the partition wall 31 is held on the blow box 1.
  • the holding web 35 is designed as a handle 38, which has an engagement opening 39.
  • the partition wall 31 can be guided manually via the engagement opening 39, so that an operator can manually pull the partition 31 into the cooling cylinder 7 or even insert it.
  • In a working position, as in the Fig. 1 to 3 is shown, can be in both cooling zones 32.1 and 32.2 of the respective cooling cylinder 7, two synthetic threads simultaneously cool.
  • Each of the cooling zones 32.1 and 32.2, the supplied through a cooling cylinder half cooling air is used to cool the synthetic threads and their filament strands.
  • cooling cylinder 7 is on the representation in the Fig. 2 and 3 Referenced.
  • a cooling cylinder 7 is shown in a cross-sectional view.
  • a plurality of cooling cylinders are shown in parallel side by side, wherein a part of the cooling cylinder in a side view and a part of the cooling cylinder are shown in a sectional view.
  • the cooling cylinders 7 arranged in the blow box 1 inside the cooling chamber 5 are identical in their construction, so that the structure of one of the cooling cylinders 7 will be described below.
  • the cooling cylinder 7 has a double-walled cylinder wall 10.
  • the cylinder wall 10 is formed by an inner wall 10.1 and an outer wall 10.2, which are arranged concentrically with each other at a distance.
  • the outer wall 10.2 consists of a perforated plate 39 with an open area in the range of 4% to 30%. As a result, a uniform cooling air flow is generated over the entire jacket area of the inner wall 10.1.
  • the distance between the inner wall 10.1 and 10.2 is formed in the range between 5 mm to 15 mm.
  • the inner wall 10.1 consists of a single-layer or multi-layered wire mesh 40, so that a finest distribution and orientation of the flow over the entire lateral surface is achieved.
  • the cooling air entering the two cooling zones 32.1 and 32.2 in the interior of the cooling cylinder 7 is thus characterized by a high degree of uniformity over the entire lateral surface of the inner wall 10.1.
  • dividers 16.1 and 16.2 are provided on the circumference of the outer wall 10.1 on the circumference of the outer wall 10.1 two offset by 180 ° to each other arranged dividers 16.1 and 16.2 are provided.
  • the dividers 16.1 and 16.2 are carried out by separate separating strips 41.1 and 41.2, which are fastened from the outside to the outer wall.
  • the separating strips 41.1 and 41.2 can be formed from an adhesive tape, a fabric tape or a plastic part.
  • the dividers 16.1 and 16.2 each have a width in circumferential directions, which in Fig. 3 is denoted by the reference b.
  • the partition wall 31 arranged between the separating webs 16.1 and 16.2 of the cooling cylinder 7 has a wall thickness which is considerably smaller in relation to the width of the separating webs 16.1 and 16.2.
  • the wall thickness of the partition wall 31 is in Fig. 3 denoted by the reference a.
  • a ratio has proven, after which the width of the Separators 16.1 and 16.2 are at least five times larger than the wall thickness of the partition 31.
  • the holes of the perforated plate 39 are closed in the region of the separating webs 16.1 and 16.2, so that no cooling air flow can form in the region of the separating webs 16.1 and 16.2.
  • the cooling zones 32.1 and 32.2 can be advantageously separated from each other.
  • the cooling cylinder 7 are arranged rectified within the cooling chamber 5. In principle, however, it is also possible to arrange the cooling cylinders 7 in their angular positions such that adjacent separating webs 16.1 and 16.2 have different angular positions. This arrangement is particularly favorable in order to obtain a uniform air distribution within the cooling chamber 5.
  • the separating webs 16.1 and 16.2 could alternatively also be arranged on the inside of the cylinder wall 10. In the case of double-walled cylinder walls 10, however, it is also possible to place the separating webs in the area between the inner wall 10.1 and the outer wall 10.2. The shielding effect of the dividers 16.1 and 16.2 relative to the interior of the cooling cylinder 7 remains unaffected.
  • the partition wall 31 could be gas-permeable, in particular in the region of the cooling cylinder 7.
  • the partition wall 31, for example have a perforation, so that a compensation of the cooling air between the two cooling zones 32.1 and 32.2 of the cooling cylinder 7 takes place.
  • the partition wall 31 and the retaining web 35 is punched from a sheet and has no perforation.
  • the partition wall 31 is gas impermeable.
  • the partition wall 31 is designed so wide that the cooling cylinder 7 has a separation between the two cooling zones 32.1 and 32.2 substantially over the entire inner diameter.
  • an air inlet opening 12 is formed on a longitudinal side of the blow box 1.
  • the air inlet opening 12 is formed on the lower part 4 of the blow box 1, wherein the air inlet opening 12 extends substantially over the entire length of the blow box 1.
  • the inlet cross section of the air inlet opening 12 is determined essentially by the length and the height of the lower part 4.
  • the air inlet opening 12 is formed on a longitudinal side of the lower part 4 projecting in relation to the upper part 5, the longitudinal side of the lower part 4 being connected to a funnel-shaped connecting channel 3.
  • a distribution plate 13 is arranged, which has a gas-permeable wall. At a narrow end of the connection channel 3, an air connection 6 is formed.
  • each pipe socket 14 to assign a guide plate 30.
  • the baffle 30 is in Fig. 2 shown in dashed lines. Such baffles 30 are for example from the WO 2005/095683 known, so that reference is made to the cited document at this point.
  • the blow box 1 In operation, the blow box 1 is held with its top directly to a bottom of a spinner.
  • a foam sealing plate 17 is provided at the top of the blow box 1, which has 2 circular recesses for each yarn inlet opening.
  • an air-conditioned cooling air is provided via the connection channel 3 and supplied to the air inlet opening 12.
  • the cooling air thus enters the distribution chamber 4 of the blow box 1. From the distribution chamber 4, the cooling air passes through the perforated plate 8 in the cooling chamber fifth
  • the cooling air After the cooling air is introduced into the upper part 5, it penetrates the cylinder walls 10 of the cooling cylinders 7.
  • the cylinder walls 10 of the cooling cylinders 7 have the same air resistance for this purpose, so that a uniform flow is generated over the entire length of the cooling cylinders 7.
  • the cylinder wall of each of the cooling cylinders 7 is double-walled and formed from an inner wall 10.1 and an outer wall 10.2.
  • the outer wall 10.2 consists of a perforated plate with an open area in the range of 4% to 30%. As a result, a homogenization of the cooling air flow over the open region of the cylinder wall is achieved.
  • the cooling air entering the two cooling zones 32.1 and 32.1 in the interior of the cooling cylinder 7 is thus distinguished by a high degree of uniformity over the entire lateral surface of the inner wall 10.1.
  • the inventive device for cooling a plurality of synthetic filament bundles is thus particularly suitable for cooling a large number of filaments.
  • Fig. 4 the embodiment of the device according to the invention is shown in use in a melt spinning apparatus.
  • the melt spinning apparatus for melt spinning and cooling of multiple threads is in Fig. 4 schematically shown in a longitudinal sectional view.
  • the embodiment of the melt spinning device has a spinning beam 20, which holds on its underside a plurality of duo spinnerets 21 in a row-shaped arrangement next to each other.
  • the duo spinnerets 21 are within the spinneret 20 by a plurality of melt lines 25th connected to a spinning pump 22.
  • the spinning pump 22 is driven by a pump drive 23, wherein the spinning pump 22 has at least one separate conveying means for each duo spinneret 21.
  • the spin pump 22 is connected via a melt inlet 24 with a melt source, not shown here.
  • the spinning beam 20 is designed to be heated, so that the duo spinning nozzles 21, the melt lines 25 and the spinning pump 22 are heated.
  • a cooling device connects, according to the embodiment according to Fig. 1 and 3 is constructed.
  • the cooling device without dividing walls 31 is used.
  • the distribution of the cooling air within the cooling cylinder 7 takes place solely on the partitions 16.1 and 16.2 of the cylinder walls 10.
  • the blow box 1 is held by two attacking on the blow box 1 lifting cylinder 29.1 and 29.2 on the underside of the spinner.
  • the blow box 1 can be guided by the lifting cylinders 29.1 and 29.2 optionally between an operating position - as shown - and a maintenance position. In the maintenance position, the blow box 1 is held at a distance from the spinning beam 20, so that, for example, the undersides of the duo spinning nozzles 21 can be cleaned.
  • a foam sealing plate 17 and a pressure plate 27 is disposed between the underside of the spinning beam 1 and the top of the blow box 1.
  • the pressure plate 27 is fixedly connected to the underside of the spinneret 20, wherein the pressure plate 27 is insulated by an insulating plate 28 with respect to the spinning beam 20.
  • the foam sealing plate 17 is attached directly to the blow box 1.
  • the blow box 1 is formed by the lifting cylinder 29.1 and 29.2 adjustable in height.
  • the blow box 1 is pressed against the underside of the spinning beam 20, so that the foam sealing plate 17 is pressed against the pressure plate 27 and for sealing the parting line between the spinning beam 20 and the blow box 1 leads.
  • the filaments extruded through the duo spinnerets 21 are cooled by a flow of cooling air within the blow box 1.
  • the filament bundles 26 enter the cooling cylinders 7 through the thread inlet openings 2.
  • two separate filament bundles 26 are extruded and passed through the associated cooling zones 32.1 and 32.2 of the cooling cylinder 7.
  • the filament bundles 26 are cooled to then leave the blow box 1 together with the cooling air through the yarn outlets 9 and the pipe sockets 14 from the yarn outlet openings 15.
  • the cooling air flow is supplied via the connection channel 3 to the lower part 4 of the blow box 1.
  • the blow box can alternatively only be formed by the upper part with a cooling chamber in which the cooling cylinders are arranged between an upper thread inlet opening and a lower thread outlet opening.
  • the upper part would be connected via an air inlet opening directly to a cooling air flow generator, so that the cooling air is introduced directly into the cooling chamber.
  • FIGS. 5 and 6 an embodiment of an associated cooling cylinder is shown, as it could for example be designed for use in the device according to the invention.
  • the cooling cylinder is in Fig. 5 in a cross-sectional view and in Fig. 6 shown in an offset longitudinal sectional view, wherein the section line AA in Fig. 5 for clarity. Unless an explicit reference is made to one of the figures, the following description applies to both figures.
  • the cooling cylinder 7 is formed from a double-walled cylinder wall 10, which has an inner wall 10.1 and an outer wall 10.2.
  • the inner wall 10.1 and the outer wall 10.2 are connected to one another at an upper end via a first retaining ring 43.1 and at the lower end via a second retaining ring 43.2.
  • the cylinder wall 10 forms an upper thread inlet opening 2 and a lower thread outlet opening 9.
  • the outer wall 10.2 thus extends from the thread inlet opening 2 as far as the thread outlet opening 9.
  • the outer wall 10.2 is formed by a perforated plate 39.
  • the perforated plate 39 has a plurality of perforated and unperforated sheet metal zones.
  • the unperforated sheet metal zones are identified by the reference numerals 42.1 and 42.2.
  • the unperforated plate zones 42.1 and 42.2 form the separating webs 16.1 and 16.2 and extend between the thread inlet opening 2 and the thread outlet opening 9.
  • the perforated sheet metal zones in the perforated plate 39 form the openings for the inlet of a cooling air.
  • the inner wall 10. 1 is designed as a wire mesh 40.
  • the wire mesh 40 is associated with the perforated plate 39 at a short distance, so that a homogenization of the incoming cooling air, in particular for generating laminar flows is achieved.
  • FIGS. 5 and 6 illustrated embodiment of the cooling cylinder is thus particularly suitable in accordance with in the embodiment of the device according to the invention Fig. 1 to 3 to be used.

Description

Die Erfindung betrifft eine Vorrichtung zum Abkühlen einer Vielzahl synthetischer Fäden gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a device for cooling a plurality of synthetic threads according to the preamble of claim 1.

Eine gattungsgemäße Vorrichtung zum Abkühlen mehrerer synthetischer Fäden mit mehreren Kühlzylindern ist beispielsweise aus der DE 10 2009 034 061 A1 bekannt.A generic device for cooling a plurality of synthetic threads with a plurality of cooling cylinders is for example from DE 10 2009 034 061 A1 known.

Bei der bekannten Vorrichtung sind innerhalb eines Blaskastens mehrere Kühlzylinder nebeneinander angeordnet. Die Kühlzylinder sind unterhalb eines Spinnbalkens angeordnet und koaxial mehreren Spinndüsenpaketen zugeordnet. Die Kühlzylinder weisen jeweils eine gasdurchlässige Zylinderwand auf, so dass die Filamentstränge des Fadens zum Abkühlen den Kühlzylinder von einer oberen Fadeneinlassöffnung bis zu einer unteren Fadenauslassöffnung durchlaufen und dabei von allen Seiten gleichmäßig kühlbar sind. Somit lässt sich jeder einzelne Faden durch einzelne erzeugte Kühlluftströme abkühlen. Um eine große Anzahl von Fäden mit möglichst geringem Aufwand an Aggregaten abzukühlen, werden innerhalb des Kühlzylinders durch eine Trennwand mehrere Kühlzonen gebildet. So können die Filamentbündel mehrerer Fäden gleichzeitig innerhalb eines der Kühlzylinder nach dem Schmelzspinnen unmittelbar abgekühlt werden.In the known device, a plurality of cooling cylinders are arranged side by side within a blow box. The cooling cylinders are arranged below a spinning beam and associated coaxially with several spinneret packages. The cooling cylinders each have a gas-permeable cylinder wall, so that the filament strands of the thread for cooling pass through the cooling cylinder from an upper thread inlet opening to a lower thread outlet opening and can be uniformly cooled on all sides. Thus, each individual thread can be cooled by individual generated cooling air streams. To cool a large number of threads with the least possible effort on aggregates, several cooling zones are formed within the cooling cylinder by a partition wall. Thus, the filament bundles of several threads can be cooled simultaneously within one of the cooling cylinder after melt spinning immediately.

Die Zufuhr der Kühlluft in den Kühlzonen erfolgt über die gasdurchlässige Zylinderwand des Kühlzylinders, die eine radial gerichtete Kühlluftströmung ins Innere des Kühlzylinders erzeugt. Dabei hat sich herausgestellt, dass die unmittelbar parallel zur Trennwand einströmende Kühlluft teilweise ungewünschte Auslenkungen erfährt, die sich auf die Abkühlung der in der Kühlzone geführten Filamentstränge auswirkt. Je nach dem mit welcher Dichte und mit welchem Abstand die in den Kühlzonen zur Trennwand geführten Filamentstränge geführt werden, können derartige Erscheinungen die Fadengleichmäßigkeit (Uster) des Fadens beeinflussen.The supply of cooling air in the cooling zones via the gas-permeable cylinder wall of the cooling cylinder, which generates a radially directed flow of cooling air into the interior of the cooling cylinder. It has been found that the cooling air flowing in directly parallel to the dividing wall experiences partially undesired deflections, which have an effect on the cooling of the filament strands guided in the cooling zone. Depending on the density and the distance between them in the cooling zones led to the partition led filament strands, such phenomena can affect the thread uniformity (Uster) of the thread.

Es ist daher Aufgabe der Erfindung, die eingangs genannte Vorrichtung zum Abkühlen einer Vielzahl synthetischer Fäden derart auszubilden, dass mehrere Fäden bei Führung durch einen der Kühlzylinder gleichmäßig kühlbar sind.It is therefore an object of the invention to form the aforementioned device for cooling a plurality of synthetic threads such that a plurality of threads are uniformly coolable when guided by one of the cooling cylinder.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass zumindest einer der Kühlzylinder an seiner gasdurchlässigen Zylinderwand mehrere gasundurchlässige Trennstege aufweist, die sich zwischen den Fadenöffnungen erstrecken und am Umfang des Kühlzylinders versetzt zueinander ausgebildet sind.This object is achieved in that at least one of the cooling cylinder has on its gas-permeable cylinder wall a plurality of gas-impermeable partitions which extend between the thread openings and offset from each other on the circumference of the cooling cylinder.

Vorteilhafte Weiterbildungen der Erfindung sind durch die Merkmale und Merkmalskombinationen der abhängigen Ansprüche definiert.Advantageous developments of the invention are defined by the features and feature combinations of the dependent claims.

Die Erfindung besitzt den besonderen Vorteil, dass durch die gasundurchlässigen Trennstege innerhalb des Kühlzylinders Zonen geschaffen werden, in welchem keine direkte Kühlluftzufuhr erfolgt. So lassen sich innerhalb des Kühlzylinders Trennzonen schaffen, in welchen über die Zylinderwand des Kühlzylinders kein direktes Einströmen der Kühlluft erfolgt. Derartige Trennzonen sind besonders geeignet, um eine Kühlzonenaufteilung innerhalb des Kühlzylinders zu erhalten.The invention has the particular advantage that zones are created by the gas-impermeable partitions within the cooling cylinder, in which no direct supply of cooling air takes place. Thus, separation zones can be created within the cooling cylinder in which no direct inflow of the cooling air takes place via the cylinder wall of the cooling cylinder. Such separation zones are particularly suitable for obtaining a cooling zone distribution within the cooling cylinder.

Dieser Effekt lässt sich vorteilhaft noch dadurch verbessern, dass gemäß einer bevorzugten Weiterbildung der Erfindung die Trennstege an dem Kühlzylinder versetzt zueinander angeordnet sind und dass zwischen den Trennstegen innerhalb des Kühlzylinders zumindest eine Trennwand angeordnet ist, die die Kühlzylinder in mehrere separate Kühlzonen teilt. Hierbei wird die Trennwand in den durch die Trennstege erzeugten Trennzonen gehalten, so dass Wechselwirkungen mit der einströmenden Kühlluft vermieden werden. Bei Verwendung einer Trennwand werden die Trennstege bevorzugt um einen Winkel von 180° versetzt an dem Umfang des Kühlzylinders gehalten, so dass im Wesentlichen zwei gleich große Kühlzonen entstehen.This effect can be improved even better in that, according to a preferred embodiment of the invention, the separating webs are arranged offset from one another on the cooling cylinder and that between the separating webs within the cooling cylinder at least one partition is arranged, which divides the cooling cylinder into several separate cooling zones. In this case, the partition wall is held in the separation zones generated by the separating webs, so that interactions with the incoming cooling air are avoided. When using a partition, the partitions are preferably offset by an angle of 180 ° held on the circumference of the cooling cylinder, so that essentially two equal cooling zones arise.

Die Trennwand wird vorzugsweise innerhalb des Kühlzylinders mittig zu den Trennstegen gehalten, wobei die Trennstege eine Breite in Umfangsrichtung aufweisen, die größer ist als eine Wandstärke der Trennwand. Somit lässt sich in Abhängigkeit von der Breite der Trennwand und dem Durchmesser des Kühlzylinders ausreichende Trennzonen realisieren, so dass die Kühlluft über die freien Abschnitte der Zylinderwand nur im Bereich der geführten Filamente eintreten kann.The dividing wall is preferably held within the cooling cylinder in the middle of the separating webs, wherein the dividing webs have a width in the circumferential direction which is greater than a wall thickness of the dividing wall. Thus, depending on the width of the partition and the diameter of the cooling cylinder sufficient separation zones can be realized, so that the cooling air can enter via the free portions of the cylinder wall only in the area of the guided filaments.

Es hat sich herausgestellt, dass die Breite einer der Trennstege zumindest um ein Mehrfaches größer sein sollte als die Wandstärke der Trennwand innerhalb des Kühlzylinders. Damit lassen sich vorteilhaft turbulente Randströmungen an der Trennwand vermeiden.It has been found that the width of one of the partitions should be at least several times greater than the wall thickness of the partition wall inside the cooling cylinder. This can be advantageous to avoid turbulent edge flows on the partition.

Um innerhalb einer Kühlvorrichtung bei einer Vielzahl von verwendeten Kühlzylindern eine hohe Gleichmäßigkeit in der Kühlluftzufuhr zu erhalten, ist die Ausbildung der erfindungsgemäßen Vorrichtung besonders vorteilhaft, bei welcher der Kühlzylinder einen doppelwandige Zylinderwand aufweist, wobei eine Außenwand aus einem Lochblech und eine Innenwand aus einem Drahtgewebe gebildet sind, und bei welcher die Trennstege durch mehrere ungelochte Blechzonen im Lochblech des Kühlzylinders gebildet sind. Einerseits wird durch die Doppelwandigkeit eine Vergleichmäßigung der eintretenden Kühlluftströme erzielt. Andererseits wird die Zufuhr der Kühlluft durch die Lochung des Lochbleches und der ungelochten Blechzonen bestimmt.In order to obtain a high uniformity in the cooling air supply within a cooling device in a plurality of used cooling cylinders, the formation of the device according to the invention is particularly advantageous, in which the cooling cylinder has a double-walled cylinder wall, wherein an outer wall of a perforated plate and an inner wall formed of a wire mesh are, and in which the partitions are formed by a plurality of unperforated sheet metal zones in the perforated plate of the cooling cylinder. On the one hand, a homogenization of the incoming cooling air flows is achieved by the double walledness. On the other hand, the supply of cooling air through the perforation of the perforated plate and the non-perforated sheet metal zones is determined.

Alternativ besteht jedoch auch die Möglichkeit, die Trennstege durch separate Trennstreifen zu bilden, die von außen oder von innen an der Zylinderwand des Kühlzylinders befestigt sind. Derartige Trennstreifen können beispielsweise als Klebestreifen, Gewebebänder oder Kunststoffplatten ausgeführt sein. Damit besteht auch die Möglichkeit, bereits im Betrieb befindliche Kühlzylinder nachträglich mit Trennstegen zu versehen.Alternatively, however, it is also possible to form the separating webs by separate separating strips, which are fastened from the outside or from the inside to the cylinder wall of the cooling cylinder. Such separating strips can be designed, for example, as adhesive strips, fabric strips or plastic plates. This also makes it possible to retrofit cooling cylinders already in operation with dividing webs.

Bei Einsatz einer Trennwand innerhalb des Kühlzylinders ist die Weiterbildung der Erfindung bevorzugt ausgeführt, bei welcher die Trennwand auswechselbar mit dem Blaskasten verbunden ist. Damit lässt sich der Kühlzylinder individuell zum Abkühlen eines oder mehrerer Fäden nutzen. Darüber hinaus ist eine Reinigung der Trennwand, an deren Oberfläche beispielsweise Monomerverschmutzungen anhaften könnten, ohne weitere Demontage ausführbar.When using a partition wall within the cooling cylinder, the development of the invention is preferably carried out in which the partition wall is replaceably connected to the blow box. Thus, the cooling cylinder can be used individually for cooling one or more threads. In addition, a cleaning of the partition, on the surface of which, for example, monomer contaminants could adhere, can be carried out without further dismantling.

Die Handhabung der erfindungsgemäßen Vorrichtung lässt sich insbesondere durch die Weiterbildung der Erfindung verbessern, in dem die Trennwand ein Einsteckende und ein aus der Fadenaustrittsöffnung herausragendes Halteende aufweist. Das Halteende bildet einen Haltesteg, welcher sich quer zur Fadenaustrittsöffnung erstreckt und welcher lösbar mit der Unterseite des Blaskastens verbunden ist. Damit ist eine einfache Montage der Trennwand von außerhalb des Blaskastens möglich.The handling of the device according to the invention can be improved in particular by the development of the invention, in which the partition wall has an insertion end and a retaining end protruding from the thread exit opening. The holding end forms a holding web which extends transversely to the yarn outlet opening and which is releasably connected to the underside of the blow box. For a simple installation of the partition from outside the blow box is possible.

Die Weiterbildung der Erfindung, bei welcher der Blaskasten aus einer oberen Kühlkammer mit Kühlzylinder und einer unteren Verteilkammer mit einem Anschluss für den Kühllufterzeuger aufweist, ist besonders vorteilhaft, um an den Kühlzylindern eine gleichmäßige Kühlluftströmung zur Abkühlung der Fäden zu erhalten. Hierbei wird die über den Kühllufterzeuger eingeblasene Kühlluft aus der Verteilkammer über eine Lochplatte gleichmäßig über den gesamten Querschnitt der Kühlkammer eingeleitet, so dass die gesamt Umgebung der Kühlzylinder innerhalb der Kühlkammer gleichmäßig mit einem Frischluftstrom versorgt werden.The development of the invention, in which the blow box comprises an upper cooling chamber with a cooling cylinder and a lower distribution chamber with a connection for the cooling air generator, is particularly advantageous in order to obtain a uniform cooling air flow for cooling the threads on the cooling cylinders. Here, the injected via the cooling air generator cooling air from the distribution chamber via a perforated plate is introduced uniformly over the entire cross section of the cooling chamber, so that the entire environment of the cooling cylinder are supplied evenly within the cooling chamber with a fresh air stream.

Für den Fall, dass bereits im Betrieb befindliche Kühlvorrichtungen auf eine mehrfädige Abkühlung umzustellen sind, besteht die Möglichkeit, die in dem Blaskasten gehaltenen Kühlzylinder auszutauschen. Um insbesondere die Abkühlung mehrerer Fäden innerhalb eines Kühlzylinders ausführen zu können, weist der Kühlzylinder an der Zylinderwand mehrere gasundurchlässige Trennstege auf, die sich zwischen den Fadenöffnungen erstrecken und am Umfang versetzt zueinander ausgebildet sind.In the event that already in operation cooling devices are to switch to a multi-filament cooling, it is possible to replace the cooling cylinder held in the blow box. In order to be able to carry out, in particular, the cooling of a plurality of threads within a cooling cylinder, the cooling cylinder has a plurality of gas-impermeable partitions on the cylinder wall, which extend between the thread openings and are offset relative to one another on the circumference.

Um insbesondere zur Kühlung der Filamentstränge eine laminare Kühlluftströmung zu erzeugen, ist die Weiterbildung des Kühlzylinders besonders vorteilhaft, bei welcher die Zylinderwand doppelwandig ausgebildet ist, bei welcher eine Außenwand aus einem Lochblech und eine Innenwand aus einem Drahtgewebe gebildet ist und bei welcher die Trennstege durch mehrere ungelochte Blechzonen im Lochblech gebildet sind. Durch die Lochung des Lochbleches wird die Kühlluftmenge und Verteilung bestimmt. Dagegen führt das Drahtgewebe zu einer Ausrichtung der Strömung im Wesentlichen quer zu den innerhalb eines Kühlzylinders geführten Filamentsträngen.In order to produce a laminar cooling air flow in particular for cooling the filament strands, the development of the cooling cylinder is particularly advantageous, in which the cylinder wall is double-walled, in which an outer wall of a perforated plate and an inner wall of a wire mesh is formed and in which the separating webs by several Unperforated sheet metal zones are formed in the perforated plate. Through the perforation of the perforated plate, the amount of cooling air and distribution is determined. In contrast, the wire mesh leads to an orientation of the flow substantially transversely to the guided within a cooling cylinder filament strands.

Alternativ besteht jedoch auch die Möglichkeit, die an der Zylinderwand ausgebildeten Trennstege lösbar durch Trennstreifen zu bilden, die von außen oder von innen an der Zylinderwand befestigt sind.Alternatively, however, it is also possible to form the separating webs formed on the cylinder wall detachably by separating strips which are fastened from the outside or from the inside to the cylinder wall.

Die erfindungsgemäße Vorrichtung und der beschriebene Kühlzylinder sind besonders geeignet, um mehrere Fäden innerhalb eines Kühlzylinders gleichzeitig abzukühlen. Dabei können die Fäden sowohl zu einem POY-Garn als auch zu einem FDY-Garn oder zu einem IDY-Garn erzeugt werden.The device according to the invention and the described cooling cylinder are particularly suitable for simultaneously cooling a plurality of threads within a cooling cylinder. In this case, the threads can be produced both to a POY yarn and to a FDY yarn or to an IDY yarn.

Die Erfindung wird nachfolgend anhand eines Ausführungsbeispiels der erfindungsgemäßen Vorrichtung unter Bezug auf die beigefügten Figuren näher erläutert.The invention will be explained in more detail below with reference to an embodiment of the device according to the invention with reference to the accompanying figures.

Es stellen dar:

Fig. 1
schematisch eine Ansicht eines Ausführungsbeispiels der erfindungsgemäßen Vorrichtung
Fig. 2
schematisch eine Querschnittansicht des Ausführungsbeispiels aus Fig. 1
Fig. 3
schematisch eine Längsschnittansicht des Ausführungsbeispiels aus Fig. 1
Fig. 4
schematisch eine Längsschnittansicht eines Ausführungsbeispiels einer Schmelzspinnvorrichtung
Fig. 5
schematisch eine Querschnittansicht eines Ausführungsbeispiels des zugehörigen Kühlzylinders
Fig. 6
schematisch eine Längsschnittansicht des Ausführungsbeispiel des Kühlzylinders aus Fig.5
They show:
Fig. 1
schematically a view of an embodiment of the device according to the invention
Fig. 2
schematically a cross-sectional view of the embodiment of Fig. 1
Fig. 3
schematically a longitudinal sectional view of the embodiment of Fig. 1
Fig. 4
schematically a longitudinal sectional view of an embodiment of a melt spinning device
Fig. 5
schematically a cross-sectional view of an embodiment of the associated cooling cylinder
Fig. 6
schematically a longitudinal sectional view of the embodiment of the cooling cylinder Figure 5

In den Fig. 1 bis 3 ist ein erstes Ausführungsbeispiel der erfindungsgemäßen Vorrichtung zum Abkühlen mehrere synthetischer Filamentbündel gezeigt. In Fig. 1 ist die Vorrichtung schematisch in einer Gesamtansicht von einer Unterseite, in Fig. 2 schematisch in einer Querschnittansicht und in Fig. 3 schematisch in einer Längsschnittansicht dargestellt. Insoweit kein ausdrücklicher Bezug zu einer der Figuren gemacht ist, gilt die nachfolgende Beschreibung für alle Figuren.In the Fig. 1 to 3 a first embodiment of the inventive device for cooling a plurality of synthetic filament bundles is shown. In Fig. 1 the device is schematically in an overall view from a bottom, in Fig. 2 schematically in a cross-sectional view and in Fig. 3 schematically shown in a longitudinal sectional view. Unless expressly made to any of the figures, the following description applies to all figures.

Das Ausführungsbeispiel weist einen Blaskasten 1 auf, der mehrere in einer reihenförmigen Anordnung nebeneinander angeordnete Kühlzylinder 7 trägt. Jeder der Kühlzylinder 7 bildet eine obere Fadeneinlassöffnungen 2 und eine korrespondierende untere Fadenauslassöffnungen 9 auf. Die Kühlzylinder 7 sind in einem quaderförmigen Oberteil 5 des Blaskastens 1 angeordnet, der mit einem quaderförmigen Unterteil 4 zusammenwirkt. Das Oberteil 5 und das Unterteil 4 sind in einer Trennfuge 19 durch eine Flanschverbindung 18 zu dem geschlossenen Blaskasten 1 verbunden sind. In der Trennfuge 19 ist zwischen dem Unterteil 4 und dem Oberteil 5 eine Lochplatte 8 angeordnet, die das Unterteil 4 von dem Oberteil 5 trennt. Die Lochplatte 8 weist im Bereich der Fadenauslässe 9 der Kühlzylinder 7 korrespondierende Öffnungen auf. Die Enden des Kühlzylinders 7 sind dabei dichtend mit dem Oberteil 5 und der Lochplatte 8 verbunden. Durch die Öffnungen der Lochplatte 8 wirken die Fadenauslassöffnungen 9 der Kühlzylinder 7 mit mehreren Fadenaustrittsöffnungen 15 an einer Unterseite des Blaskastens 1 zusammen. Hierzu sind innerhalb des Unterteils 4 mehrere Rohrstutzen 14 mit geschlossen Wandungen zwischen der Lochplatte 8 und der Unterseite des Blaskastens 1 gehalten, wobei die Rohrstutzen 14 jeweils die unteren Fadenaustrittsöffnungen 15 bilden. An einer Längsseite des Unterteils 4 ist ein Anschlusskanal 3 angeschlossen, durch welchen eine Kühlluft in das Unterteil 4 des Blaskastens 1 zuführbar ist.The exemplary embodiment has a blow box 1 which carries a plurality of cooling cylinders 7 arranged side by side in a row-like arrangement. Each of the cooling cylinders 7 forms an upper thread inlet openings 2 and a corresponding lower thread outlet openings 9. The cooling cylinders 7 are arranged in a cuboidal upper part 5 of the blow box 1, which cooperates with a cuboid lower part 4. The upper part 5 and the lower part 4 are connected in a parting line 19 by a flange 18 to the closed blow box 1. In the parting line 19, a perforated plate 8 is arranged between the lower part 4 and the upper part 5, the lower part 4 of the Upper part 5 separates. The perforated plate 8 has in the region of the thread outlets 9 of the cooling cylinder 7 corresponding openings. The ends of the cooling cylinder 7 are sealingly connected to the upper part 5 and the perforated plate 8. Through the openings of the perforated plate 8, the Fadenauslassöffnungen 9 of the cooling cylinder 7 cooperate with a plurality of yarn outlet openings 15 on an underside of the blow box 1. For this purpose, a plurality of pipe socket 14 are held with closed walls between the perforated plate 8 and the underside of the blow box 1 within the lower part 4, wherein the pipe socket 14 each form the lower yarn outlet openings 15. On a longitudinal side of the lower part 4, a connection channel 3 is connected, through which a cooling air in the lower part 4 of the blow box 1 can be fed.

Das Oberteil 5 bildet eine Kühlkammer, durch welche eine Kühlluft zur Abkühlung der Fäden geführt wird. Das Unterteil 4 bildet eine Verteilkammer, welche direkt mit einem Kühllufterzeuger z.B. eine Klimaanlage verbunden ist.The upper part 5 forms a cooling chamber, through which a cooling air is led to cool the threads. The lower part 4 forms a distribution chamber which is directly connected to a cooling air generator e.g. An air conditioner is connected.

Wie aus der Fig. 1 hervorgeht, weist der Blaskasten insgesamt zehn Fadenaustrittsöffnungen 15 auf. Jedem der Fadenauslassöffnungen 15 ist daher einer der Kühlzylinder 7 zugeordnet, so dass insgesamt zehn Kühlzylinder 7 in dem Oberteil 5 des Blaskastens 1 enthalten sind. An dieser Stelle sei ausdrücklich vermerkt, dass die Anzahl der Fadenöffnungen 2 und 15 sowie die reihenförmige Anordnung der Kühlzylinder 7 innerhalb des Blaskastens 1 beispielhaft sind. So können weniger oder mehr Fadenläufe und mehrreihige Anordnungen mit versetzt zueinander gehaltenen Kühlzylindern vorgesehen sein.Like from the Fig. 1 shows, the blow box a total of ten thread outlet openings 15. Each of the yarn outlet openings 15 is therefore associated with one of the cooling cylinders 7, so that a total of ten cooling cylinders 7 are contained in the upper part 5 of the blow box 1. It should be expressly noted at this point that the number of thread openings 2 and 15 and the row-shaped arrangement of the cooling cylinder 7 within the blow box 1 are exemplary. Thus, fewer or more threadlines and multi-row arrangements may be provided with staggered to each other cooling cylinders.

In den Fig. 1, 2 und 3 ist dargestellt, dass innerhalb der Kühlzylinder 7 jeweils eine Trennwand 31 gehalten ist, die den Kühlzylinder 7 in zwei separate Kühlzonen 32.1 und 32.2 aufteilt. Die Trennwand 31 erstreckt sich hierbei im Wesentlichen von der oberen Fadeneinlassöffnung 2 bis zu den Fadenaustrittsöffnungen 15 des Blaskastens 1. Hierzu ragt die Trennwand 31 mit einem oberen Einsteckende 33 bis zur Oberseite des Blaskastens 1. Das gegenüberliegende Halteende 34 der Trennwand 31 ragt aus der Fadenaustrittsöffnung 15 heraus und bildet außerhalb des Blaskastens 1 einen Haltesteg 35.In the Fig. 1 . 2 and 3 is shown that within the cooling cylinder 7 each have a partition wall 31 is held, which divides the cooling cylinder 7 into two separate cooling zones 32.1 and 32.2. The partition wall 31 in this case extends substantially from the upper thread inlet opening 2 to the thread outlet openings 15 of the blow box 1. For this purpose, the dividing wall 31 projects with an upper insertion end 33 up to the top of the Blaskastens 1. The opposite holding end 34 of the partition wall 31 protrudes from the thread outlet opening 15 and forms a holding web 35 outside of the blast box 1.

Wie aus den Fig. 1 und 2 hervorgeht, erstreckt sich der Haltesteg 35 am Ende der Trennwand 31 quer zur Fadenaustrittsöffnung 15. An einer Oberseite des Haltesteges 35 ist eine lösbare Halteeinrichtung 36 ausgebildet, durch welche die Trennwand 31 an dem Blaskasten 1 gehalten ist.Like from the Fig. 1 and 2 As can be seen, the holding web 35 extends at the end of the partition wall 31 transversely to the yarn outlet opening 15. On a top side of the holding web 35, a releasable holding device 36 is formed, through which the partition wall 31 is held on the blow box 1.

Der Haltesteg 35 ist als ein Handgriff 38 ausgebildet, welcher eine Eingriffsöffnung 39 aufweist. Über die Eingriffsöffnung 39 lässt sich die Trennwand 31 manuell führen, so dass eine Bedienperson die Trennwand 31 manuell in den Kühlzylinder 7 herausziehen oder auch einstecken kann. In einer Betriebsstellung, wie sie in den Fig. 1 bis 3 dargestellt ist, lassen sich in beiden Kühlzonen 32.1 und 32.2 der jeweiligen Kühlzylinder 7 zwei synthetische Fäden gleichzeitig abkühlen. Jedem der Kühlzonen 32.1 und 32.2 wird die durch eine Kühlzylinderhälfte zugeführte Kühlluft genutzt, um die synthetischen Fäden und deren Filamentstränge zu kühlen.The holding web 35 is designed as a handle 38, which has an engagement opening 39. The partition wall 31 can be guided manually via the engagement opening 39, so that an operator can manually pull the partition 31 into the cooling cylinder 7 or even insert it. In a working position, as in the Fig. 1 to 3 is shown, can be in both cooling zones 32.1 and 32.2 of the respective cooling cylinder 7, two synthetic threads simultaneously cool. Each of the cooling zones 32.1 and 32.2, the supplied through a cooling cylinder half cooling air is used to cool the synthetic threads and their filament strands.

Zur Erläuterung der in dem Blaskasten 1 angeordneten Kühlzylinder 7 wird auf die Darstellung in den Fig. 2 und 3 Bezug genommen. In der Fig. 2 ist ein Kühlzylinder 7 in einer Querschnittansicht gezeigt. In der Darstellung in Fig. 3 sind mehrere Kühlzylinder parallel nebeneinander gezeigt, wobei ein Teil der Kühlzylinder in einer Seitenansicht und ein Teil der Kühlzylinder in einer Schnittansicht dargestellt sind. Insoweit kein ausdrücklicher Bezug zu einer der Figuren gemacht ist, gilt die nachfolgende Beschreibung für beide Figuren.To explain the arranged in the blow box 1 cooling cylinder 7 is on the representation in the Fig. 2 and 3 Referenced. In the Fig. 2 a cooling cylinder 7 is shown in a cross-sectional view. In the illustration in Fig. 3 a plurality of cooling cylinders are shown in parallel side by side, wherein a part of the cooling cylinder in a side view and a part of the cooling cylinder are shown in a sectional view. Unless an explicit reference is made to one of the figures, the following description applies to both figures.

Die in dem Blaskasten 1 innerhalb der Kühlkammer 5 angeordneten Kühlzylinder 7 sind in ihrem Aufbau identisch ausgeführt, so dass nachfolgend der Aufbau einer der Kühlzylinder 7 beschrieben wird.The cooling cylinders 7 arranged in the blow box 1 inside the cooling chamber 5 are identical in their construction, so that the structure of one of the cooling cylinders 7 will be described below.

Der Kühlzylinder 7 weist eine doppelwandige Zylinderwand 10 auf. Die Zylinderwand 10 ist durch eine Innenwand 10.1 und eine Außenwand 10.2 gebildet, die im Abstand zueinander konzentrisch angeordnet sind. Die Außenwand 10.2 besteht aus einem Lochblech 39 mit einer offenen Fläche im Bereich von 4% bis 30%. Dadurch wird eine gleichmäßige Kühlluftströmung über den gesamten Mantelbereich der Innenwand 10.1 erzeugt. Je nachdem welche Lochdurchmesser für die Außenwand 10.2 gewählt sind, wird der Abstand zwischen der Innenwand 10.1 und 10.2 im Bereich zwischen 5 mm bis 15 mm ausgebildet. Die Innenwand 10.1 besteht aus einem einlagigen oder mehrlagigen Drahtgewebe 40, so dass eine Feinstverteilung und -ausrichtung der Strömung über die gesamte Mantelfläche erzielt wird. Die in den beiden Kühlzonen 32.1 und 32.2 im Innenraum des Kühlzylinders 7 eintretende Kühlluft zeichnet sich somit durch eine hohe Gleichmäßigkeit über die gesamte Mantelfläche der Innenwand 10.1 aus.The cooling cylinder 7 has a double-walled cylinder wall 10. The cylinder wall 10 is formed by an inner wall 10.1 and an outer wall 10.2, which are arranged concentrically with each other at a distance. The outer wall 10.2 consists of a perforated plate 39 with an open area in the range of 4% to 30%. As a result, a uniform cooling air flow is generated over the entire jacket area of the inner wall 10.1. Depending on which hole diameter is selected for the outer wall 10.2, the distance between the inner wall 10.1 and 10.2 is formed in the range between 5 mm to 15 mm. The inner wall 10.1 consists of a single-layer or multi-layered wire mesh 40, so that a finest distribution and orientation of the flow over the entire lateral surface is achieved. The cooling air entering the two cooling zones 32.1 and 32.2 in the interior of the cooling cylinder 7 is thus characterized by a high degree of uniformity over the entire lateral surface of the inner wall 10.1.

An dem Umfang der Außenwand 10.1 sind zwei um 180° versetzt zueinander angeordnete Trennstege 16.1 und 16.2 vorgesehen. Die Trennstege 16.1 und 16.2 sind durch separate Trennstreifen 41.1 und 41.2 ausgeführt, die von außen an der Außenwand befestigt sind. So können die Trennstreifen 41.1 und 41.2 beispielsweise aus einem Klebeband, einem Gewebeband oder einem Kunststoffteil gebildet sein. Die Trennstege 16.1 und 16.2 weisen in Umfangsrichtungen jeweils eine Breite auf, die in Fig. 3 mit dem Bezugszeichen b gekennzeichnet ist.On the circumference of the outer wall 10.1 two offset by 180 ° to each other arranged dividers 16.1 and 16.2 are provided. The dividers 16.1 and 16.2 are carried out by separate separating strips 41.1 and 41.2, which are fastened from the outside to the outer wall. For example, the separating strips 41.1 and 41.2 can be formed from an adhesive tape, a fabric tape or a plastic part. The dividers 16.1 and 16.2 each have a width in circumferential directions, which in Fig. 3 is denoted by the reference b.

Wie aus der gleichen Darstellung in Fig. 3 hervorgeht, besitzt die zwischen den Trennstegen 16.1 und 16.2 des Kühlzylinders 7 angeordnete Trennwand 31 eine Wandstärke, die im Verhältnis zur Breite der Trennstege 16.1 und 16.2 wesentliche kleiner ausgeführt ist. Die Wandstärke der Trennwand 31 ist in Fig. 3 durch das Bezugszeichen a gekennzeichnet. Um bei den üblichen Innendurchmessern der Kühlzylinder im Bereich von 100 mm eine Teilung zum Abkühlen von zwei Fäden pro Kühlzylinder zu erhalten, hat sich ein Verhältnis bewährt, wonach die Breite der Trennstege 16.1 und 16.2 mindestens fünffach größer sind als die Wandstärke der Trennwand 31. Somit gilt b ≥ 5xa.As from the same illustration in Fig. 3 As can be seen, the partition wall 31 arranged between the separating webs 16.1 and 16.2 of the cooling cylinder 7 has a wall thickness which is considerably smaller in relation to the width of the separating webs 16.1 and 16.2. The wall thickness of the partition wall 31 is in Fig. 3 denoted by the reference a. In order to obtain a pitch for cooling two threads per cooling cylinder in the usual inside diameters of the cooling cylinder in the range of 100 mm, a ratio has proven, after which the width of the Separators 16.1 and 16.2 are at least five times larger than the wall thickness of the partition 31. Thus, b ≥ 5xa.

Durch die an der Außenwand 10.1 sich gegenüberliegend angeordneten Trennstege 16.1 und 16.2 werden im Bereich der Trennstege 16.1 und 16.2 die Löcher des Lochbleches 39 verschlossen, so dass sich keine Kühlluftströmung im Bereich der Trennstege 16.1 und 16.2 ausbilden kann. Im Innern des Kühlzylinders 7 entstehen somit Trennzonen, in welcher keine wesentlichen Kühlluftströmungen vorherrschen. So können die Kühlzonen 32.1 und 32.2 vorteilhaft voneinander getrennt werden.By means of the separating webs 16.1 and 16.2 arranged opposite one another on the outer wall 10.1, the holes of the perforated plate 39 are closed in the region of the separating webs 16.1 and 16.2, so that no cooling air flow can form in the region of the separating webs 16.1 and 16.2. In the interior of the cooling cylinder 7 thus creating separation zones in which there are no significant cooling air flows. Thus, the cooling zones 32.1 and 32.2 can be advantageously separated from each other.

An dieser Stelle sei ausdrücklich vermerkt, dass auch bei Entfernen der Trennwände 31 durch die Trennzonen eine ausreichende Abschirmung erzeugt werden kann, um zwei parallel geführte Fäden innerhalb eines Kühlzylinders 7 abzukühlen.It should be expressly noted at this point that, even when the partitions 31 are removed by the separating zones, sufficient shielding can be produced in order to cool two threads guided in parallel within a cooling cylinder 7.

Bei dem in Fig. 2 und 3 dargestellten Ausführungsbeispiel sind die Kühlzylinder 7 innerhalb der Kühlkammer 5 gleichgerichtet angeordnet. Grundsätzlich besteht jedoch auch die Möglichkeit, die Kühlzylinder 7 in ihren Winkellagen derart anzuordnen, dass benachbarte Trennstege 16.1 und 16.2 unterschiedliche Winkellagen aufweisen. Diese Anordnung ist besonders günstig, um eine gleichmäßige Luftverteilung innerhalb der Kühlkammer 5 zu erhalten.At the in Fig. 2 and 3 illustrated embodiment, the cooling cylinder 7 are arranged rectified within the cooling chamber 5. In principle, however, it is also possible to arrange the cooling cylinders 7 in their angular positions such that adjacent separating webs 16.1 and 16.2 have different angular positions. This arrangement is particularly favorable in order to obtain a uniform air distribution within the cooling chamber 5.

Bei dem zuvor erläuterten Ausführungsbeispiel des Kühlzylinders könnten die Trennstege 16.1 und 16.2 alternativ auch an der Innenseite der Zylinderwand 10 angeordnet sein. Bei doppelwandigen Zylinderwänden 10 besteht jedoch auch die Möglichkeit, die Trennstege in dem Bereich zwischen der Innenwand 10.1 und der Außenwand 10.2 zu platzieren. Die abschirmende Wirkung der Trennstege 16.1 und 16.2 gegenüber dem Innern der Kühlzylinder 7 bleibt jeweils unbeeinflusst.In the above-described embodiment of the cooling cylinder, the separating webs 16.1 and 16.2 could alternatively also be arranged on the inside of the cylinder wall 10. In the case of double-walled cylinder walls 10, however, it is also possible to place the separating webs in the area between the inner wall 10.1 and the outer wall 10.2. The shielding effect of the dividers 16.1 and 16.2 relative to the interior of the cooling cylinder 7 remains unaffected.

Die Trennwand 31 könnte insbesondere im Bereich des Kühlzylinders 7 gasdurchlässig ausgebildet sein. Hierzu könnte die Trennwand 31 beispielsweise eine Lochung aufweisen, so dass ein Ausgleich der Kühlluft zwischen den beiden Kühlzonen 32.1 und 32.2 des Kühlzylinders 7 stattfindet. In dem in Fig. 1 bis 3 dargestellten Ausführungsbeispiel ist die Trennwand 31 sowie der Haltesteg 35 aus einem Blech gestanzt und weist keine Lochung auf. Insoweit ist die Trennwand 31 gasundurchlässig.The partition wall 31 could be gas-permeable, in particular in the region of the cooling cylinder 7. For this purpose, the partition wall 31, for example have a perforation, so that a compensation of the cooling air between the two cooling zones 32.1 and 32.2 of the cooling cylinder 7 takes place. In the in Fig. 1 to 3 illustrated embodiment, the partition wall 31 and the retaining web 35 is punched from a sheet and has no perforation. In that regard, the partition wall 31 is gas impermeable.

Die Trennwand 31 ist derart breit ausgeführt, dass der Kühlzylinder 7 im Wesentlichen über den gesamten Innendurchmesser eine Trennung zwischen den beiden Kühlzonen 32.1 und 32.2 aufweist.The partition wall 31 is designed so wide that the cooling cylinder 7 has a separation between the two cooling zones 32.1 and 32.2 substantially over the entire inner diameter.

Wie aus den Darstellungen in Fig. 1 und 2 hervorgeht, ist an einer Längsseite des Blaskastens 1 eine Lufteinlassöffnung 12 ausgebildet. Die Lufteinlassöffnung 12 ist an dem Unterteil 4 des Blaskastens 1 ausgebildet, wobei sich die Lufteinlassöffnung 12 im Wesentlichen über die gesamte Länge des Blaskastens 1 erstreckt. Der Eintrittsquerschnitt der Lufteinlassöffnung 12 ist dabei im Wesentlichen durch die Länge und die Höhe des Unterteils 4 bestimmt. Die Lufteinlassöffnung 12 ist hierzu an einer gegenüber dem Oberteil 5 hervorragenden Längsseite des Unterteils 4 ausgebildet, wobei die Längsseite des Unterteils 4 mit einem trichterförmigen Anschlusskanal 3 verbunden ist. In der Nahtstelle zwischen dem Anschlusskanal 3 und dem Unterteil 4 ist eine Verteilplatte 13 angeordnet, die eine gasdurchlässige Wand aufweist. An einem schmalen Ende des Anschlusskanals 3 ist ein Luftanschluss 6 ausgebildet.As from the illustrations in Fig. 1 and 2 is apparent, an air inlet opening 12 is formed on a longitudinal side of the blow box 1. The air inlet opening 12 is formed on the lower part 4 of the blow box 1, wherein the air inlet opening 12 extends substantially over the entire length of the blow box 1. The inlet cross section of the air inlet opening 12 is determined essentially by the length and the height of the lower part 4. For this purpose, the air inlet opening 12 is formed on a longitudinal side of the lower part 4 projecting in relation to the upper part 5, the longitudinal side of the lower part 4 being connected to a funnel-shaped connecting channel 3. In the interface between the connection channel 3 and the lower part 4, a distribution plate 13 is arranged, which has a gas-permeable wall. At a narrow end of the connection channel 3, an air connection 6 is formed.

Um ein günstiges Anströmen der Rohrstutzen 14 innerhalb der Verteilkammer 4 zu erhalten, besteht auch die Möglichkeit, jedem Rohrstutzen 14 ein Leitblech 30 zuzuordnen. Das Leitblech 30 ist in Fig. 2 gestrichelt dargestellt. Derartige Leitbleche 30 sind beispielsweise aus der WO 2005/095683 bekannt, so dass an dieser Stelle Bezug zu der zitierten Druckschrift genommen wird.In order to obtain a favorable influx of the pipe socket 14 within the distribution chamber 4, it is also possible, each pipe socket 14 to assign a guide plate 30. The baffle 30 is in Fig. 2 shown in dashed lines. Such baffles 30 are for example from the WO 2005/095683 known, so that reference is made to the cited document at this point.

Im Betrieb wird der Blaskasten 1 mit seiner Oberseite unmittelbar an eine Unterseite eines Spinnbalkens gehalten. Hierzu ist an der Oberseite des Blaskastens 1 eine Schaumdichtplatte 17 vorgesehen, die zu jeder Fadeneinlassöffnung 2 kreisförmige Ausschnitte aufweist. In dieser Stellung des Blaskastens 1 wird über den Anschlusskanal 3 eine klimatisierte Kühlluft bereitgestellt und der Lufteinlassöffnung 12 zugeführt. Durch die der Lufteinlassöffnung 12 zugeordnete Verteilplatte 13 wird eine über den gesamten Querschnitt der Lufteinlassöffnung 2 gleichmäßige Verteilung der einströmenden Kühlluft erzeugt. Die Kühlluft gelangt so in die Verteilkammer 4 des Blaskastens 1. Aus der Verteilerkammer 4 gelangt die Kühlluft über die Lochplatte 8 in die Kühlkammer 5.In operation, the blow box 1 is held with its top directly to a bottom of a spinner. For this purpose, a foam sealing plate 17 is provided at the top of the blow box 1, which has 2 circular recesses for each yarn inlet opening. In this position of the blow box 1, an air-conditioned cooling air is provided via the connection channel 3 and supplied to the air inlet opening 12. By the air inlet opening 12 associated distribution plate 13 over the entire cross-section of the air inlet opening 2 uniform distribution of the incoming cooling air is generated. The cooling air thus enters the distribution chamber 4 of the blow box 1. From the distribution chamber 4, the cooling air passes through the perforated plate 8 in the cooling chamber fifth

Nachdem die Kühlluft in dem Oberteil 5 eingeleitet ist, durchdringt sie die Zylinderwände 10 der Kühlzylinder 7. Die Zylinderwände 10 der Kühlzylinder 7 weisen hierzu gleiche Luftwiderstände auf, so dass über der gesamten Länge der Kühlzylinder 7 eine gleichmäßige Strömung erzeugt wird. Zur Verteilung der Kühlluft innerhalb der Zylinderwand 10 ist die Zylinderwand jedes der Kühlzylinder 7 doppelwandig ausgebildet und aus einer Innenwand 10.1 und einer Außenwand 10.2 gebildet. Die Außenwand 10.2 besteht aus einem Lochblech mit einer offenen Fläche im Bereich von 4 % bis 30 %. Dadurch wird eine Vergleichmäßigung der Kühlluftströmung über den geöffneten Bereich des Zylinderwand erreicht Die in den beiden Kühlzonen 32.1 und 32.1 im Innenraum des Kühlzylinders 7 eintretende Kühlluft zeichnet sich somit durch eine hohe Gleichmäßigkeit über die gesamte Mantelfläche der Innenwand 10.1 aus.After the cooling air is introduced into the upper part 5, it penetrates the cylinder walls 10 of the cooling cylinders 7. The cylinder walls 10 of the cooling cylinders 7 have the same air resistance for this purpose, so that a uniform flow is generated over the entire length of the cooling cylinders 7. For distributing the cooling air within the cylinder wall 10, the cylinder wall of each of the cooling cylinders 7 is double-walled and formed from an inner wall 10.1 and an outer wall 10.2. The outer wall 10.2 consists of a perforated plate with an open area in the range of 4% to 30%. As a result, a homogenization of the cooling air flow over the open region of the cylinder wall is achieved. The cooling air entering the two cooling zones 32.1 and 32.1 in the interior of the cooling cylinder 7 is thus distinguished by a high degree of uniformity over the entire lateral surface of the inner wall 10.1.

Die erfindungsgemäße Vorrichtung zur Abkühlung mehrere synthetischer Filamentbündel ist somit besonders geeignet, um eine großen Anzahl von Fäden zu kühlen.The inventive device for cooling a plurality of synthetic filament bundles is thus particularly suitable for cooling a large number of filaments.

In Fig. 4 ist das Ausführungsbeispiel der erfindungsgemäßen Vorrichtung in Anwendung in einer Schmelzspinnvorrichtung gezeigt. Die Schmelzspinnvorrichtung zum Schmelz spinnen und Abkühlen mehrerer Fäden ist in Fig. 4 schematisch in einer Längsschnittansicht dargestellt. Das Ausführungsbeispiel der Schmelzspinnvorrichtung weist einen Spinnbalken 20 auf, der an seiner Unterseite mehrere Duo-Spinndüsen 21 in einer reihenförmigen Anordnung nebeneinander hält. Die Duo-Spinndüsen 21 sind innerhalb des Spinnbalkens 20 durch mehrere Schmelzeleitungen 25 mit einer Spinnpumpe 22 verbunden. Die Spinnpumpe 22 ist über einen Pumpenantrieb 23 angetrieben, wobei die Spinnpumpe 22 zu jeder Duo-Spinndüse 21 zumindest ein separates Fördermittel aufweist. Die Spinnpumpe 22 ist über einen Schmelzezulauf 24 mit einer hier nicht dargestellten Schmelzequelle verbunden. Der Spinnbalken 20 ist beheizt ausgeführt, so dass die Duo-Spinndüsen 21, die Schmelzeleitungen 25 und die Spinnpumpe 22 beheizt werden.In Fig. 4 the embodiment of the device according to the invention is shown in use in a melt spinning apparatus. The melt spinning apparatus for melt spinning and cooling of multiple threads is in Fig. 4 schematically shown in a longitudinal sectional view. The embodiment of the melt spinning device has a spinning beam 20, which holds on its underside a plurality of duo spinnerets 21 in a row-shaped arrangement next to each other. The duo spinnerets 21 are within the spinneret 20 by a plurality of melt lines 25th connected to a spinning pump 22. The spinning pump 22 is driven by a pump drive 23, wherein the spinning pump 22 has at least one separate conveying means for each duo spinneret 21. The spin pump 22 is connected via a melt inlet 24 with a melt source, not shown here. The spinning beam 20 is designed to be heated, so that the duo spinning nozzles 21, the melt lines 25 and the spinning pump 22 are heated.

An der Unterseite des Spinnbalkens 20 schließt sich eine Kühlvorrichtung an, die gemäß dem Ausführungsbeispiel nach Fig. 1 und 3 aufgebaut ist. Der einzige Unterschied liegt darin, dass die Kühlvorrichtung ohne Trennwände 31 verwendet wird. Somit erfolgt die Aufteilung der Kühlluft innerhalb der Kühlzylinder 7 allein über die Trennstege 16.1 und 16.2 der Zylinderwände 10. Hierbei wird der Blaskasten 1 durch zwei an dem Blaskasten 1 angreifende Hubzylinder 29.1 und 29.2 an der Unterseite des Spinnbalkens 20 gehalten. Der Blaskasten 1 lässt sich durch die Hubzylinder 29.1 und 29.2 wahlweise zwischen einer Betriebsstellung - wie dargestellt - und einer Wartungsstellung führen. In der Wartungsstellung wird der Blaskasten 1 mit Abstand zu dem Spinnbalken 20 gehalten, so dass beispielsweise die Unterseiten der Duo-Spinndüsen 21 gereinigt werden können.On the underside of the spinning beam 20, a cooling device connects, according to the embodiment according to Fig. 1 and 3 is constructed. The only difference is that the cooling device without dividing walls 31 is used. Thus, the distribution of the cooling air within the cooling cylinder 7 takes place solely on the partitions 16.1 and 16.2 of the cylinder walls 10. Here, the blow box 1 is held by two attacking on the blow box 1 lifting cylinder 29.1 and 29.2 on the underside of the spinner. The blow box 1 can be guided by the lifting cylinders 29.1 and 29.2 optionally between an operating position - as shown - and a maintenance position. In the maintenance position, the blow box 1 is held at a distance from the spinning beam 20, so that, for example, the undersides of the duo spinning nozzles 21 can be cleaned.

Zur Abdichtung der Fadeneinlassöffnungen 2 ist zwischen der Unterseite des Spinnbalkens 1 und der Oberseite des Blaskastens 1 eine Schaumdichtplatte 17 und eine Druckplatte 27 angeordnet. Die Druckplatte 27 ist fest mit der Unterseite des Spinnbalkens 20 verbunden, wobei die Druckplatte 27 über eine Dämmplatte 28 gegenüber den Spinnbalken 20 isoliert ist. Die Schaumdichtplatte 17 ist unmittelbar an dem Blaskasten 1 befestigt.To seal the thread inlet openings 2, a foam sealing plate 17 and a pressure plate 27 is disposed between the underside of the spinning beam 1 and the top of the blow box 1. The pressure plate 27 is fixedly connected to the underside of the spinneret 20, wherein the pressure plate 27 is insulated by an insulating plate 28 with respect to the spinning beam 20. The foam sealing plate 17 is attached directly to the blow box 1.

Wie aus der Darstellung in Fig. 4 hervorgeht, ist der Blaskasten 1 durch die Hubzylinder 29.1 und 29.2 höhenverstellbar ausgebildet. Im Betrieb wird der Blaskasten 1 gegen die Unterseite des Spinnbalkens 20 gedrückt, so dass die Schaumdichtplatte 17 gegen die Druckplatte 27 gepresst wird und zur Abdichtung der Trennfuge zwischen dem Spinnbalken 20 und dem Blaskasten 1 führt. In der Betriebsstellung des Blaskastens 1 werden die durch die Duo-Spinndüsen 21 extrudierten Filamente durch einen Kühlluftstrom innerhalb des Blaskastens 1 abgekühlt. Hierzu treten die Filamentbündel 26 durch die Fadeneinlassöffnungen 2 in die Kühlzylinder 7 ein. Pro Duo-Spinndüse 21 werden zwei separate Filamentbündel 26 extrudiert und durch die zugeordneten Kühlzonen 32.1 und 32.2 des Kühlzylinders 7 geführt. Innerhalb der Kühlzylinder 7 werden die Filamentbündel 26 gekühlt, um dann gemeinsam mit der Kühlluft durch die Fadenauslässe 9 und die Rohrstutzen 14 aus den Fadenaustrittsöffnungen 15 den Blaskasten 1 zu verlassen. Der Kühlluftstrom wird über den Anschlusskanal 3 dem Unterteil 4 des Blaskastens 1 zugeführt. Die weitere Führung und Verteilung der Kühlluft erfolgt wie bereits zuvor zu dem Ausführungsbeispiel nach Fig. 1 bis 3 beschrieben wurde. Insoweit wird zu der vorgenannten Beschreibung Bezug genommen.As from the illustration in Fig. 4 shows, the blow box 1 is formed by the lifting cylinder 29.1 and 29.2 adjustable in height. In operation, the blow box 1 is pressed against the underside of the spinning beam 20, so that the foam sealing plate 17 is pressed against the pressure plate 27 and for sealing the parting line between the spinning beam 20 and the blow box 1 leads. In the operating position of the blow box 1, the filaments extruded through the duo spinnerets 21 are cooled by a flow of cooling air within the blow box 1. For this purpose, the filament bundles 26 enter the cooling cylinders 7 through the thread inlet openings 2. For each duo spinneret 21, two separate filament bundles 26 are extruded and passed through the associated cooling zones 32.1 and 32.2 of the cooling cylinder 7. Within the cooling cylinder 7, the filament bundles 26 are cooled to then leave the blow box 1 together with the cooling air through the yarn outlets 9 and the pipe sockets 14 from the yarn outlet openings 15. The cooling air flow is supplied via the connection channel 3 to the lower part 4 of the blow box 1. The further guidance and distribution of the cooling air is carried out as previously for the exemplary embodiment Fig. 1 to 3 has been described. In that regard, reference is made to the above description.

Der konstruktive Aufbau des Ausführungsbeispiels gemäß Fig. 1 bis Fig. 3 der erfindungsgemäßen Vorrichtung ist beispielhaft. Grundsätzlich lässt sich der Blaskasten alternativ auch nur durch das Oberteil mit einer Kühlkammer bilden, in welcher die Kühlzylinder zwischen einer oberen Fadeneinlassöffnung und einer unteren Fadenauslassöffnung angeordnet sind. Das Oberteil wäre über eine Lufteinlassöffnung direkt mit einem Kühlluftstromerzeuger verbunden, so dass die Kühlluft unmittelbar in die Kühlkammer eingeleitet wird.The structural design of the embodiment according to Fig. 1 to Fig. 3 the device according to the invention is exemplary. In principle, the blow box can alternatively only be formed by the upper part with a cooling chamber in which the cooling cylinders are arranged between an upper thread inlet opening and a lower thread outlet opening. The upper part would be connected via an air inlet opening directly to a cooling air flow generator, so that the cooling air is introduced directly into the cooling chamber.

In den Fig. 5 und 6 ist ein Ausführungsbeispiel eines zugehörigen Kühlzylinders dargestellt, wie er beispielsweise zur Verwendung in der erfindungsgemäßen Vorrichtung ausgebildet sein könnte. Der Kühlzylinder ist in Fig. 5 in einer Querschnittansicht und in Fig. 6 in einer versetzten Längsschnittansicht dargestellt, wobei die Schnittlinie A-A in Fig. 5 zur Verdeutlichung angegeben ist. Insoweit kein ausdrücklicher Bezug zu einer der Figuren gemacht ist, gilt die nachfolgende Beschreibung für beide Figuren.In the FIGS. 5 and 6 an embodiment of an associated cooling cylinder is shown, as it could for example be designed for use in the device according to the invention. The cooling cylinder is in Fig. 5 in a cross-sectional view and in Fig. 6 shown in an offset longitudinal sectional view, wherein the section line AA in Fig. 5 for clarity. Unless an explicit reference is made to one of the figures, the following description applies to both figures.

Der Kühlzylinder 7 ist aus einer doppelwandigen Zylinderwand 10 gebildet, die eine Innenwand 10.1 und eine Außenwand 10.2 aufweist. Die Innenwand 10.1 und die Außenwand 10.2 sind an einem oberen Ende über einen ersten Haltering 43.1 und am unteren Ende über einen zweiten Haltering 43.2 miteinander verbunden. Die Zylinderwand 10 bildet eine obere Fadeneinlassöffnung 2 und eine untere Fadenauslassöffnung 9. Die Außenwand 10.2 erstreckt sich somit von der Fadeneinlassöffnung 2 bis hin zur Fadenauslassöffnung 9.The cooling cylinder 7 is formed from a double-walled cylinder wall 10, which has an inner wall 10.1 and an outer wall 10.2. The inner wall 10.1 and the outer wall 10.2 are connected to one another at an upper end via a first retaining ring 43.1 and at the lower end via a second retaining ring 43.2. The cylinder wall 10 forms an upper thread inlet opening 2 and a lower thread outlet opening 9. The outer wall 10.2 thus extends from the thread inlet opening 2 as far as the thread outlet opening 9.

Bei dem in Fig. 5 und 6 dargestellten Ausführungsbeispiel ist die Außenwand 10.2 durch ein Lochblech 39 gebildet. Das Lochblech 39 weist mehrere gelochte und ungelochte Blechzonen auf. Die ungelochten Blechzonen sind durch die Bezugszeichen 42.1 und 42.2 gekennzeichnet. Die ungelochten Blechzonen 42.1 und 42.2 bilden die Trennstege 16.1 und 16.2 und erstrecken sich zwischen der Fadeneinlassöffnung 2 und der Fadenauslassöffnung 9.At the in FIGS. 5 and 6 illustrated embodiment, the outer wall 10.2 is formed by a perforated plate 39. The perforated plate 39 has a plurality of perforated and unperforated sheet metal zones. The unperforated sheet metal zones are identified by the reference numerals 42.1 and 42.2. The unperforated plate zones 42.1 and 42.2 form the separating webs 16.1 and 16.2 and extend between the thread inlet opening 2 and the thread outlet opening 9.

Die gelochten Blechzonen im Lochblech 39 bilden die Öffnungen zum Einlass einer Kühlluft.The perforated sheet metal zones in the perforated plate 39 form the openings for the inlet of a cooling air.

Die Innenwand 10.1 ist als ein Drahtgewebe 40 ausgeführt. Das Drahtgewebe 40 ist im kurzen Abstand dem Lochblech 39 zugeordnet, so dass eine Vergleichmäßigung der eintretenden Kühlluft insbesondere zum Erzeugen laminarer Strömungen erreicht wird.The inner wall 10. 1 is designed as a wire mesh 40. The wire mesh 40 is associated with the perforated plate 39 at a short distance, so that a homogenization of the incoming cooling air, in particular for generating laminar flows is achieved.

Das in Fig. 5 und 6 dargestellte Ausführungsbeispiel des Kühlzylinders ist somit besonders geeignet, um in dem Ausführungsbeispiel der erfindungsgemäßen Vorrichtung gemäß Fig. 1 bis 3 eingesetzt zu werden.This in FIGS. 5 and 6 illustrated embodiment of the cooling cylinder is thus particularly suitable in accordance with in the embodiment of the device according to the invention Fig. 1 to 3 to be used.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Blaskastenblow box
22
FadeneinlassöffnungYarn inlet
33
Anschlusskanalconnecting channel
44
Unterteil, VerteilkammerLower part, distribution chamber
55
Oberteil, KühlkammerUpper part, cooling chamber
66
Luftanschlußair connection
77
Kühlzylindercooling cylinder
88th
Lochplatteperforated plate
99
Fadenauslassöffnungyarn outlet
1010
Zylinderwandcylinder wall
10.110.1
Innenwandinner wall
10.210.2
Außenwandouter wall
11.1, 11.211.1, 11.2
SeitenwandSide wall
1212
LufteinlassöffnungAir inlet opening
1313
Verteilplattedistribution plate
1414
Rohrstutzenpipe socket
1515
FadenaustrittsöffnungYarn ejection port
16.1, 16.216.1, 16.2
Trennstegdivider
1717
SchaumdichtplatteFoam sealing plate
1818
Flanschverbindungflange
1919
Trennfugeparting line
2020
Spinnbalkenspinning beam
2121
Duo-SpinndüseDuo spinneret
2222
Spinnpumpespinning pump
2323
Pumpenantriebpump drive
2424
Schmelzezulaufmelt inlet
2 52 5
Schmelz eleitungMelting line
2626
Filamentbündelfilament bundles
2727
Druckplatteprinting plate
2828
DämmplatteInsulation Board
29.1, 29.229.1, 29.2
Hubzylinderlifting cylinder
3030
Leitblechbaffle
3131
Trennwandpartition wall
32.1, 32.232.1, 32.2
Kühlzonecooling zone
3333
Einsteckendespigot
3434
Halteendeholding end
3535
Haltestegholding web
3636
Halteeinrichtungholder
3737
Handgriffhandle
3838
Eingriffsöffnungengagement opening
3939
Lochblechperforated sheet
4040
Drahtgewebewire cloth
41.1, 41.241.1, 41.2
Trennstreifenseparating strips
42.1, 42.242.1, 42.2
ungelochte Blechzoneunperforated sheet metal zone
44.1, 43.244.1, 43.2
Halteringretaining ring

Claims (10)

  1. An apparatus for cooling a multiplicity of synthetic threads, comprising a blow box (1) connectable to a cooling air generator (6), which blow box contains a plurality of cooling cylinders (7) having gas-permeable cylinder walls (10) which are arranged within the blow box (1) at a distance apart and respectively form an upper thread inlet opening (2) and a lower thread outlet opening (9),
    characterized in that
    at least one of the cooling cylinders (7) has on its gas-permeable cylinder wall (10) a plurality of gas-impermeable separating bars (16.1, 16.2), which extend between the thread openings (2, 9) and are configured in a mutually offset arrangement on the periphery of the cooling cylinder (7).
  2. The apparatus as claimed in claim 1,
    characterized in that
    the separating bars (16.1, 16.2) are arranged mutually offset on the cooling cylinder (7), and in that between the separating bars (16.1, 16.2) within the cooling cylinder (7) is arranged at least one partition (31), which separates the cooling cylinder (7) into a plurality of separate cooling zones (32.1, 32.2).
  3. The apparatus as claimed in claim 2,
    characterized in that
    the partition (31) is held within the cooling cylinder (7) centrally to the separating bars (16.1, 16.2), wherein the separating bars (16.1, 16.2) have a width (b) in the peripheral direction which is greater than a wall thickness (a) of the partition (31).
  4. The apparatus as claimed in claim 3,
    characterized in that
    the width (b) of one of the separating bars (16.1, 16.2) is at least several times greater than the wall thickness (a) of the partition (31).
  5. The apparatus as claimed in one of claims 1 to 4,
    characterized in that
    the cooling cylinder (7) has a double-walled cylinder wall (10), wherein an outer wall (10.2) is formed of a perforated plate (39) and an inner wall (10.1) is formed of a wire mesh (40), and in that the separating bars (16.1, 16.2) are formed by a plurality of non-perforated plate zones (42.1, 42.2) in the perforated plate (39) of the cooling cylinder (7).
  6. The apparatus as claimed in one of claims 1 to 5,
    characterized in that
    the separating bars (16.1, 16.2) are formed by separate separating strips (4.1, 4.2), which are fastened to the cylinder wall (10) of the cooling cylinder (7) from outside and/or from inside.
  7. The apparatus as claimed in one of claims 1 to 6,
    characterized in that
    the partition (31) is exchangeably connected to the blow box (1).
  8. The apparatus as claimed in claim 7,
    characterized in that
    the partition (31) has an insertion end (33) and a holding end (34), which latter projects from the thread discharge opening (9), and in that the holding end (34) forms a holding web (35), which extends transversely to the lower thread outlet opening (9) and which is detachably connected to a bottom side of the blow box (1).
  9. The apparatus as claimed in one of the aforementioned claims,
    characterized in that
    the blow box (1) is formed of an upper cooling chamber (5), which bears the cooling cylinders (7), and a lower distributing chamber (4), which has a connecting branch (6, 12) for the cooling air generator, in that a perforated plate (8) is arranged between the chambers (4, 5), and in that the distributing chamber (4) has a plurality of pipe sockets (14) in extension of the cooling cylinders (7), which pipe sockets fully penetrate the distributing chamber (4).
  10. The apparatus as claimed in claim 9,
    characterized in that
    the partition (31) penetrates the pipe socket (14) assigned to the cooling cylinder (7) in such a way that the holding web (35) of the partition (31) extends beneath the distributing chamber (4).
EP11706563.1A 2011-01-22 2011-03-01 Device for cooling down a plurality of synthetic threads Not-in-force EP2665849B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011009160 2011-01-22
PCT/EP2011/053007 WO2012097880A1 (en) 2011-01-22 2011-03-01 Device for cooling down a plurality of synthetic threads

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EP2665849A1 EP2665849A1 (en) 2013-11-27
EP2665849B1 true EP2665849B1 (en) 2014-10-22

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EP (1) EP2665849B1 (en)
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WO (1) WO2012097880A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103328700B (en) * 2011-01-22 2016-08-31 欧瑞康纺织有限及两合公司 For cooling down the device of a large amount of synthetic thread
CN103526312B (en) * 2013-10-18 2017-12-01 王振海 For synthesizing the air-supply arrangement of tow cooling
DE102014015729A1 (en) * 2014-10-23 2016-04-28 Oerlikon Textile Gmbh & Co. Kg Apparatus and method for melt spinning and cooling a filament bundle
JP6334373B2 (en) * 2014-11-19 2018-05-30 Ｔｍｔマシナリー株式会社 Confounding device

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CN1064724C (en) * 1994-12-02 2001-04-18 巴马格股份公司 Spinning beam for spinning a plurality of synthetic threads and spinning device comprising a spinning beam of this type
JP2002309431A (en) * 2000-06-21 2002-10-23 Toray Eng Co Ltd Spinning apparatus
JP2003113527A (en) * 2001-10-05 2003-04-18 Toray Eng Co Ltd Spinning device
US20050056313A1 (en) * 2003-09-12 2005-03-17 Hagen David L. Method and apparatus for mixing fluids
CN1930329B (en) 2004-03-16 2010-05-05 欧瑞康纺织有限及两合公司 Device for melt spinning and cooling
JP2007063690A (en) * 2005-08-30 2007-03-15 Teijin Fibers Ltd Device for cooling yarn
DE102008045454A1 (en) * 2008-09-02 2010-03-04 Oerlikon Textile Gmbh & Co. Kg Device for melt spinning and cooling multiple synthetic threads with spin bar, has thread guide border around outer lateral side of blowing chamber, and thread guide border is extended parallel to spinning nozzles
DE202008015311U1 (en) * 2008-09-16 2009-04-30 Oerlikon Textile Gmbh & Co. Kg Apparatus for cooling a plurality of synthetic filament bundles
JP2010077553A (en) * 2008-09-25 2010-04-08 Toray Ind Inc Apparatus and method for producing filament yarn
DE102009034061A1 (en) * 2008-12-17 2010-06-24 Oerlikon Textile Gmbh & Co. Kg Device for melt-spinning and winding set of synthetic fibers for producing partially oriented yarn, has spinning manifold for carrying spin nozzle packages that are formed such that fibers per cooling cylinders are cooled down
DE102010050394A1 (en) * 2009-11-06 2011-05-12 Oerlikon Textile Gmbh & Co. Kg Synthetic thread cooling device, has cooling cylinder comprising separating wall between openings, and cooling cylinder divided into multiple separate cooling zones by separating wall that is replaceably connected with blowing chamber
CN103328700B (en) * 2011-01-22 2016-08-31 欧瑞康纺织有限及两合公司 For cooling down the device of a large amount of synthetic thread

Also Published As

Publication number Publication date
CN103328700B (en) 2016-08-31
CN103328700A (en) 2013-09-25
EP2665849A1 (en) 2013-11-27
WO2012097880A1 (en) 2012-07-26
CN201990776U (en) 2011-09-28

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