CN101313090A - Method and device for melt spinning and cooling a multifilament thread - Google Patents
Method and device for melt spinning and cooling a multifilament thread Download PDFInfo
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- CN101313090A CN101313090A CNA2006800437426A CN200680043742A CN101313090A CN 101313090 A CN101313090 A CN 101313090A CN A2006800437426 A CNA2006800437426 A CN A2006800437426A CN 200680043742 A CN200680043742 A CN 200680043742A CN 101313090 A CN101313090 A CN 101313090A
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- temperature
- cooling
- cooling air
- monofilament
- filament
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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
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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
- D01D13/00—Complete machines for producing artificial threads
- D01D13/02—Elements of machines in combination
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- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
The invention relates to a method for melt spinning and cooling a multifilament thread and to a device for carrying out said method. According to said method, a plurality of filaments is extruded from a polymer melt, said filaments being guided in a filament bundle and cooled by a cooling air stream that passes transversally across the filament bundle, the temperature of the cooling air that is evacuated during the cooling of the filaments being measured and monitored. To detect the cooled state of the filaments and the characteristics of the thread derived from said state, the temperature of the cooling air is measured at least at one measuring point inside the filament bundle. To achieve this, a temperature sensor is located inside the filament bundle between the spinneret and a thread guide that is allocated to the latter.
Description
Technical field
The present invention relates to a kind of as claim 1 method and a kind of equipment that is used to carry out this method as claimed in claim 11 that is used for melt-spun and cooling multifilament as described in the preamble.
Background technology
Long filament is made of many thin strip monofilament when making synthetic thread by polymer melt.Extrude every monofilament by the nozzle bore of spinning-nozzle by polymer melt for this reason.After extruding, make tow inside be spaced from each other the monofilament cooling of guiding and then solidifying (Verfestigung) after be combined into long filament.Carry out the transition to the solid state by the definite basic physical characteristic of long filament later on of certain cooling condition from melt state in monofilament material.Therefore keep the uniformity of cooling condition significant for producing high-quality long filament.
For example, wherein measure and monitor the temperature of the cooling air that when cooled filament, occurs by the known a kind of method and apparatus of DE 10031106A1.Enter quenching stack and the cooling air when quenching stack is discharged in this measurement, so that during cooled filament, as far as possible always keep constant cooling air temperature rise.But known method can not provide the deduction to the cooling procedure that produces on each monofilament.Especially unclear is what kind of degree to have the mutual even cooling of all monofilament with.
By the known a kind of method that is used for the many monofilament of melt-spun of DE 4404258A1, wherein on the monofilament that solidifies, measure the parameter of physics or textile technology continuously, compare with theoretical value and be used to control the especially technological parameter of cooling.But almost can not on the long filament that moves, detect these physical parameters such as filament linear-density, intensity or birefringence, therefore can not reach for definite enough measurement and monitoring of long filament quality with sufficiently high certainty of measurement.
Summary of the invention
Therefore the objective of the invention is, realize a kind of method and a kind of equipment that is used to carry out this method of being used for melt-spun and cooling multifilament of above-mentioned form, wherein the cooling of long filament can adapt to the cooling characteristics of monofilament substantially.
Purpose of the present invention also is, improves this method and this equipment like this, makes can directly infer the characteristic of long filament by the cooling of long filament.
Another object of the present invention is, a kind of method and apparatus that is used for melt-spun and cooling long filament is provided, by this method or equipment can make long filament with given and uniformly cooling procedure be wound into reel.
Be achieved by method with claim 1 feature and equipment according to this purpose of the present invention with claim 15 feature.
Feature and feature combination by each dependent claims limit favourable improvement project of the present invention.
The present invention is based on following understanding, according to the guiding of the quantity of monofilament and monofilament, especially during cooling the mutual distance of monofilament influences the cooling result of long filament fatefully.Therefore especially in the monofilament of pencil ground guiding, produce the problem of cooling even air ground guiding by tow.There is big difference in cooling air temperature measurement on the different measuring point of inside, cooling zone.Therefore differently estimate the cooling procedure of giving each monofilament according to measurement point.The present invention now proposes a solution, can closely record the cooling effect that works by simple measurement cooling air temperature on long filament in this scheme.On at least one measurement point of filament tow inside, measure the temperature of cooling air for this reason.Verified, the cooling air temperature in tow inside apparently higher than the temperature that records in the tow outside.Therefore the temperature of measuring the inner cooling of filament tow air provides a good yardstick, is used for determining the instantaneous solid state of monofilament.In addition, can pre-determine in the uniformity of inner each the monofilament cooling of filament tow and by interfering cooling procedure that it is changed targetedly.In addition, the cooling interference effect that can discern early and stop especially to work from the outside, as the dirt on the air blowing wall, spinning-nozzle fault etc.
In order to measure at the contactless substantially cooling air temperature of the inner realization of filament tow on the one hand, improve uniformity on the other hand in the inner silk cooling of filament tow, particularly advantageous method flexible program is that monofilament external guidance seamed edge by formed body in cooling procedure is separated and guiding.Bigger monofilament can be produced thus at interval, the temperature survey of the inner cooling air of discharging of filament tow can be implemented advantageously in such monofilament at interval.For making monofilament before converged position, obtain wetting situation, preferably use formed body to be used to flood monofilament.Make the guiding seamed edge wetting in this case by oil agent.
At this high homogeneity, each monofilament of guiding filament tow on formed body by formed body realization cooling of an annular or plate-like.
In order under given cooling condition, to obtain the cooling characteristics of monofilament as far as possible exactly, preferred use a method flexible program, wherein in filament tow inside or filament tow is outside or preferably measure the temperature of cooling air on the inner many measurement points in the filament tow outside simultaneously of filament tow.The Temperature Distribution on the filament tow cross section can be obtained thus, a cooling procedure that is used to solidify the well bigger uniformity of each monofilament or can determines and monitor monofilament thus can be set up thus with also higher precision.
Not only on the measurement point of horizontal or vertical and registration, measure temperature at this.Especially the perpendicular positioning measurement point can obtain in inside, cooling zone the transition from the liquation state of monofilament material to curing materials.
Verified, the cooling air temperature that records is particularly suitable for monitoring the long filament quality.Keeping as far as possible uniformly, the long filament cooling condition can access the long filament of given physical characteristic basically.Therefore particularly advantageous method flexible program is, wherein at least one measured temperature of storage cooling air or a plurality of in time each other in succession measured temperature and compare with a theoretical value or a limiting value scope.Can directly infer manufacturing long filament quality of stability thus.
Can particularly advantageously monitor manufacture process by this method flexible program, wherein will be in time each other in succession cooling air temperature measured value change into the mean value of a statistics or a plurality of assembly average and the mean value of measured temperature and a theoretical value or a limiting value scope compared.The theoretical value of cooling air temperature mean value and limiting value scope for example can determine that the physical characteristic of determining has been considered the cooling of monofilament in test by the test of experience on long filament.Therefore can for example within the tolerance range that comprises higher extreme value and low extreme value, monitor the technical process of making long filament by the temperature-averaging value of observing cooling air temperature.Can also be as for record long filament quality or for interfering conclusive monitoring of technology and evaluating in the value of overstepping the extreme limit of this appearance.
Can advantageously derive the mass value of long filament by the deviation of the theoretical value of the measured temperature that records or mean temperature measured value and cooling air temperature or limiting value scope at this point.This mass value directly product parameters with given is relevant, for example can obtain the qualitative character after long filament is made thus.
Utilize mass value to determine that the method flexible program of product parameters has special advantage, can directly give a product parameters of determining by cooling the long filament of manufacturing.Therefore can define a product parameters, it is the inner inhomogeneity yardstick of long filament.Especially can realize when long filament height uniform crystallinity that identical dyestuff absorbs (Farbaufnahme), directly when making long filament, just provide for example evaluation of colouring power thus.Can characterize the feature aspect the dyeability of prediction like this at this product parameters of deriving by mass value.
Because when making synthetic thread, make many long filaments extrude, cool off, handle and be wound into reel in parallel to each other simultaneously usually, a kind of method flexible program of preferred especially use wherein detects measured temperature that cools off air and the quality monitoring that is used for each bar long filament by cooling air flow or by a plurality of independent many long filaments of cooling air flows cooling and to every long filament.Obtain following possibility thus, just the quality of long filament is carried out during fabrication, so that then carry out qualitative classification.Therefore the long filament that the reel that produces on Spulspindelspulspindel has had the different quality level can shift to an earlier date classification by means of mass value thus.
At this for technical process and to make particularly advantageous method flexible program for product be that at least one instantaneous temperature value and the temperature theoretical value that wherein will cool off air compare and produce a difference signal and change into the control signal that is used to interfere manufacturing technique.Therefore can discern and eliminate fast the external disturbance of technology in advance.
Described control signal can be used in the process sequence that changes technological parameter or the manufacturing of definite long filament on the one hand.Therefore for example for the cooling that changes monofilament can influence technological parameter like this, make difference between pre-determined cooling air temperature that records and the given theoretical value temperature as much as possible little and adjusted.For the situation of the difference of determining above given limiting value scope, cooling condition causes the long filament of quality low value, and the manufacturing technique order of long filament can be affected like this, makes and for example carry out replacing reel in advance when winding filaments.
Therefore the manufacturing technique that can interfere synthetic thread according to method of the present invention in advance, influence so that especially analyze targetedly and influence the orientation and the degree of crystallinity of monofilament material or eliminate the external disturbance that acts on cooling fast, can regulate given weaving physical characteristic or definite dyeability or operating characteristic thus by cooling.Can irrespectively carry out according to method of the present invention with the further processing of the long filament of melt-spun at this.Can make long filament partial draft or complete drawing-off and manufacturing technique yarn, carpet yarn or the staple fibre of weaving at this.
In order to carry out according to method of the present invention, according to equipment of the present invention have at least one at spinning-nozzle and be equipped on be provided with between the thread guide of spinning-nozzle at filament tow temperature inside sensor.Can be implemented in the measurement point in the inner cooling range of filament tow thus.
Improvement project according to equipment of the present invention is a preferred expansion structure, wherein temperature sensor sets a guiding mechanism, by it the monofilament bar is separated in the long filament flow process between spinning-nozzle and the thread guide, so that temperature sensor is positioned at filament tow inside.Can avoid the danger that do not contact between the desired temperatures sensor and monofilament thus.
Preferably can realize separating of monofilament by a formed body with external guidance seamed edge, the guiding seamed edge keeps guiding monofilament with the spinning-nozzle essentially concentric and on the guiding seamed edge.Preferably make temperature sensor inner maintenance of filament tow and the basic centering of formed body at this.
For the situation of wetting monofilament, the preferred improvement project of using according to present device, wherein said formed body constitutes by an oiling device, and wherein around guiding seamed edge carries a wetting mechanism.
Can guide filament tow by the formed body that disk or annulus constitute, wherein the cooling air from the external alignment filament tow can pass filament tow as far as possible equably.
Also can to improve like this according to equipment of the present invention in order optimizing according to method of the present invention, described sensing device to be constituted by a plurality of temperature sensors, they flatly or vertically are arranged side by side in the inside of filament tow or outside or inside and outside.A device variations scheme is provided thus, wherein can obtains with the proportional temperature profile of filament tow cross section or can obtain along the variations in temperature of long filament flow process.Each temperature sensor is a measurement point, detects the temperature of cooling air at this measurement point.
Described sensing device advantageously connects with control device, and it has the electronic installation that is used to estimate measured value, the device that is used to store the device of data and is used to produce signal.By means of control device can be implemented in according to the measured value evaluation on the method meaning of the present invention and targetedly control interfere manufacturing technique.
In order to change technological parameter or process sequence, described control device connects with at least one or a plurality of controller, and they influence each process unit or process sequence.
In order to keep predetermined and given cooling condition, one of them controller is connected with the cooling air source of cooling device, therefore makes an air blowing wall that is connected on the cooling air source can produce a given cooling air flow that is used for the cooled filament bundle.
But also there is this possibility, control device is connected with output equipment, thus the long filament mass value that can directly observe and write down the measured value analysis or draw by the measured value analysis.When the analysis to measure value, can carry out the computational tasks that becomes known for statistical appraisal.Therefore preferred use has the device of the microprocessor of corresponding software configuration as the analysis to measure value.
For the cooling characteristics of determining monofilament preferably uses the expansion structure of this equipment, wherein at least one temperature sensor is arranged in 1/3rd above the cooling path that extends between spinning-nozzle and thread guide.Can directly behind extruded monofilament, just realize temperature survey thus at relatively hot position, cooling zone.
For the technology suitability when making difference length monofilament-type, this device variations scheme provides a special advantage, and wherein at least one temperature sensor maintains by an adjustable for height support.Can and on different temperature levels, realize measurement point thus on the inner differing heights of filament tow thus.
Substantially extend on all known cooling devices according to equipment of the present invention, they produce the cooling air flow that is used for cooled filament.Particularly when making known produced simultaneously side by side mutually many weaving monofilament, cooling device is preferably constituted by the air blowing wall of side, it by the air blowing chamber with cool off air source and be communicated with.Produce the cooling air of one-sided aligning filament tow thus.
Description of drawings
Be described in detail with reference to the attached drawings the present invention by means of several embodiment below according to equipment of the present invention.In the accompanying drawing:
Fig. 1 illustrates first embodiment according to present device that is used to carry out according to the inventive method with Fig. 2 with different view letters,
Fig. 3 illustrates another embodiment according to present device with the viewgraph of cross-section letter,
Fig. 4 letter illustrates another embodiment according to present device,
Fig. 5 letter illustrates another embodiment according to present device.
The specific embodiment
Be used to carry out first embodiment that is used for the method for melt-spun and cooling multifilament according to of the present invention shown in Fig. 1 and 2 according to present device.At this, Fig. 2 illustrates this equipment with the side view letter to Fig. 1 with cross-sectional view.Short of clearly at certain accompanying drawing, following description is all effective to these two accompanying drawings.
First embodiment illustrates a spinneret 1 that is used to install spinning-nozzle 2.This spinning-nozzle 2 has many nozzle bores (not shown) here on the bottom surface of spinneret 1, they are connected with melt input unit 4.Spinneret 1 by melt input unit 4 and a melt source for example an extruder be connected.In order to distribute and to guide the polymer melt sent to by melt input unit 4, many other devices are set, for example melt-spun pump and distribution duct in the inside of spinneret 1 to spinning-nozzle 2.Spinneret 1 constitutes with being heated.
A cooling device 6 is set below spinneret 1.This cooling device 6 is designed for producing the crossing current blowning installation of cooling air flow.Cooling device 6 has an air blowing wall 7 for this reason, and it extends on spinning-nozzle 2 sides side along cooling path below spinneret 1, and the monofilament of extruding by spinning-nozzle 23 is directly guided on air blowing wall 7 next doors.This air blowing wall 7 is connected with air blast 9 by air blowing chamber 8.This air blowing wall 7 constitutes ventilatively, make thus the cooling air that produces by air blast 9 discharge as cooling air flow by air blowing wall 7 from air blowing chamber 8 and substantially laterally from external action on the monofilament of extruding by spinning-nozzle 23.
Many monofilament of extruding by spinning-nozzle 2 pass as a filament tow 5 and are parallel to the cooling path guiding that air blowing wall 7 extends.Below air blowing wall 7, be provided with a thread guide 11, be used to make each monofilament 3 of filament tow 5 to assemble mutually, constitute a multifilament 16 thus.Therefore this thread guide 11 is the converged positions that are equipped on spinning-nozzle 2, is converged to long filament 16 on this position all monofilament 3 bunchys.Usually, thread guide 11 connects with an oiling device (not shown here), so that change the combination of monofilament bar 3 by oil agent.
Cooling path inside between spinning-nozzle 2 and thread guide 11 is provided with a sensing device 10.This sensing device 10 has a temperature sensor 12, and it is arranged on filament tow 5 inside.This temperature sensor 12 connects with a control device 17 that is arranged on the outside by holding wire.
In order to guide monofilament 3 and in order to locate temperature sensor 12, sensing device 10 sets a guiding mechanism 13, it is by formed body (Formkoerper) 14 formations that keep with one heart with spinning-nozzle 2.This formed body 14 is prepended to thread guide 11 in the long filament flow process, wherein this formed body 14 have one around guiding seamed edge 15, it impels and is used for monofilament and assembles the deflection of extending naturally, and filament tow 5 is separated after pulling out from spinning-nozzle 2 by formed body 14.The guiding seamed edge 15 of formed body 14 preferably has an envelope diameter for this reason, and it is equal to or greater than the envelope contour that the nozzle bore by spinning-nozzle 2 constitutes.Directly above formed body, produce a free space that substantially centrally constitutes with filament tow thus, maintain temperature sensor 12 therein.Temperature sensor 12 is remained on the free end of shaft-like sensor stand 26, this support is connected with formed body 14 on its opposed end for this reason.Can measure the temperature of the cooling air that flows through filament tow 5 by it advantageously at the filament tow 5 inner temperature survey points of realizing thus.
Except realizing the free space in that filament tow 5 is inner, by formed body 14 separately filament tow 5 have special advantage, make distance between each monofilament 3 continue at monofilament that the size according to formed body 14 changes when mobile.Outside monofilament 3 is being guided between formed body 4 and spinning-nozzle 2 as far as possible in parallel to each other with essentially identical size.For the formed body 14 that is used for filament tow 5 separately greater than the situation of nozzle bore in the layout of spinning-nozzle 2, for the monofilament of outside by continuous guiding even can strengthen distance between the silk.Especially this monofilament 3 spacings of the monofilament 3 of guiding in filament tow 5 perimeters change and to cause, and the cooling air flow that produces by air blowing wall 7 can unhinderedly enter into filament tow 5 and cause inner thus and deviate from the even cooling of the monofilament 3 of air blowing wall 7.
In order to carry out, has a control device 17 that connects with sensing device 10 according to equipment of the present invention according to method of the present invention.For the measuring-signal that provides by temperature sensor 12 is provided, this control device 17 has electricity and device electronics, and they can be realized signal evaluation, signal and data storage and produce the signal that is used to control.Control device 17 connects with controller 18.1 in the embodiment shown in Fig. 1, and it directly has been equipped on the air blast 9 of cooling air source effect.
Be in operation and extrude many monofilament 3 by the polymer melt of under pressure, importing continuously by spinning-nozzle 2.Monofilament 3 jointly as filament tow 5 along cooling path in the guiding of air blowing wall 7 sides and at guiding seamed edge 15 upper deflectings of formed body 14, thereby be converged to long filament 16 by thread guide 11.For the monofilament material in the monofilament 3 is solidified with given mode and method, produce by cooling device 6 and blow to filament tow 5 transverse to the cooling air flow of long filament moving direction orientation and by air blowing wall 7 substantially from the outside.The cooling air of cooling air flow passes filament tow 5 and causes the monofilament material of liquation to be solidified when the continuation motion after extruding, to obtain the crystalline texture according to the drawing-off of monofilament 3 monofilament material definite with cooling off air conditions.In order to produce for example given textile property on long filament, it for example can keep the inside uniformity of monofilament degree of crystallinity, is used to realize use the dyeing property determined according to method of the present invention by measuring in the temperature of the filament tow 5 inner cooling air that occur.The cooling air temperature measured value that obtains by temperature sensor 12 on the measurement point of filament tow 5 inside is transported to control device 17 by holding wire.The transient temperature measured value of cooling air for example can be T
IstIn control device 17, can advantageously store a cooling air theoretical temperatures that is used to keep given as T
Soll, make the theory-actual specific of cooling air temperature show maintenance or depart from given cooling by the device that is included in the control device 17 thus.For at T
IstWith T
SollBetween the situation that does not allow difference, in control device 17, produce a control signal S by difference signal, it directly is used for control cooling air source at air blast 9 in this case in controller 18.1.For example produce bigger cooling air delivery thus, reduce for example too high inside cooling air temperature T thus by the air blast power of strengthening cooling air flow and improving air blast thus
IstAnd realize thus improving cooling off.Therefore in manufacture process, can influence important targetedly for continuing to handle conclusive textile property such as dyeing property.Directly by changing measured temperature T
IstAnd follow relatively reality-theoretical value acquisition, and compensated at once by correspondingly controlling air blast 9 owing to the variation of outside interference as the monofilament cooling of the air blowing cornice of pollution.Therefore monofilament is cooled off with substantially invariable cooling condition.
But also there is this possibility, makes difference signal additionally or selectively convert an alarm signal to when promptly the deviation between measured temperature and temperature theoretical value is too big, realize the indication of vision or sound sensation or be transported to higher level's control module.
In Fig. 3, another embodiment according to equipment of the present invention is shown with the cross-sectional view letter.The structure of this environment division is basic consistent with the above-mentioned embodiment according to Fig. 1 and 2 with layout, therefore explains difference at this, and other parts are consulted top description.
In the embodiment according to equipment of the present invention shown in Fig. 3, described sensing device 10 constitutes by a plurality of temperature sensors 12.1 and 12.4, is used for the inner and a plurality of measurement points of the outside realization of filament tow at filament tow.Temperature sensor 12.1 and 12.2 remains on the shaft-like sensor stand 26 spaced reciprocally, and this support connects with the formed body 14 of taper.At this first measurement point by the 12 definition filament tows of the temperature sensor on the free end of sensor stand 26.1,5 inside, it preferably be arranged near the cooling path of spinning-nozzle 2 belows first 1/3rd.The measurement point of realizing in identical plane by temperature sensor 12.2 is positioned at the zone line of cooling path, so can detect the temperature of determining in cooling path inside and fall on the cooling air.Temperature sensor 12.3 and 12.4 is two other measurement points of filament tow outside, and they especially constitute on filament tow 5 one sides that deviate from air blowing wall 7.Being used herein to the inside and outside measurement point that detects cooling air temperature lays respectively on the equal height of cooling path.Temperature sensor 12.3 and 12.4 remains on second sensor stand 26.2, and it is directly fixing by steady arm 23.This steady arm 23 puts in the filament tow 5 by a free end and supporting formed body 14.This formed body 14 tapers ground constitutes, and the awl end of its Tipping Center is towards spinning-nozzle 12 and fix sensor stand 26.1.On blunt awl end, constitute guiding seamed edge 15, guide the monofilament of extruding by each nozzle bore of spinning-nozzle 23 thereon.
In order to adjust the height of temperature sensor 12.1 to 12.4 and formed body 14, the free end of steady arm 23 externally connects with crossbeam 24, and it is in its guiding in 25 of vertically-guided.This crossbeam 24 can move in guider 25, can select and change the position of formed body 14 thus and select thus and change the measurement point that constitutes by temperature sensor 12.1 to 12.4 in the separation of cooling path inside and selection and change.
Described temperature sensor 12.1 to 12.4 connects with control device 17 by holding wire.This control device 17 be used to influence control of process parameters device 18.1 and be connected with being used to show with the output equipment 19 of output quality value.By connecting the possibility that output equipment 19 exists the mass value that direct demonstration derives out by temperature survey, can on output equipment 19, monitor the workmanship of long filament 13 thus continuously.Output equipment 19 is constituted by monitor 20 and printer 21.Output equipment 19 is connected with control device 17 by a microprocessor.
In the embodiment shown in Fig. 3, fall in order to carry out directly to detect in cooling path inside based on the temperature of monofilament 3 coolings by temperature sensor 12.1 to 12.4 according to method of the present invention.And can realize temperature survey on filament tow 5 profiles by being arranged on measurement point on the cooling path height, they can directly provide the uniformity of cooling.Actual cooling characteristics for monofilament 3 can obtain point-device measurement thus, during cooling can influence the orientation and the degree of crystallinity of monofilament material thus targetedly.Therefore can make long filament with given weaving physical characteristic or definite dyeing property or definite operating characteristic.Can produce the highest long filament quality by direct interference cooling procedure.
In order to monitor manufacture process, can carry out the measured value analysis with method in a different manner according to given software configuration by the device that is included in the device that is used for the evaluation temperature measured value in the control device 17, is used to store the device of data and is used to produce signal.The measured temperature that for example will send by temperature sensor 12.1 signallings in the simplest version and the theoretical value of cooling air temperature compare.Obtain deviation between theoretical value and the measured temperature as difference, and directly on monitor 20, show as mass value.Additionally can show based on the measured temperature distribution curve that surpasses theoretical value at this, can see technical process and long filament quality, the especially uniformity of long filament quality thus thus.
But also have this possibility, by will be in time each other in succession cooling air temperature measured value change into assembly average, thus at first the compensation measurement fluctuation and measure unintelligible.Be preferably in definite time period and form mean value, adjust the variation of mean value thus equally about the time.The mean value curve of the cooling air temperature that records can directly be equipped on a theoretical value or preferably have the limiting value scope of a higher extreme value and a low extreme value.The difference of determining between the mean value of measured temperature and theoretical value or limiting value scope is the yardstick of long filament quality or the yardstick of monofilament cooling uniformity equally.Thus obtained difference can advantageously directly show as mass value.
But also there is this possibility, above-mentioned measured value evaluation and each temperature sensor 12.1 to 12.4 are constituted concurrently.But also can make a temperature mean value of merging that records in filament tow 3 inside and make temperature merge a mean value in filament tow 3 outsides.Can carry out many evaluation methods in principle, they can directly estimate the quality of manufacturing long filament.
Especially verified, the uniformity of monofilament cooling has positive impact to the homogeneously crystallized degree of long filament with relevant therewith level dyeing.Therefore also have this possibility, the quality that makes mass value be directly used in product parameters is determined.Therefore for example can define the dyeing property of long filament by mass value.Can define the value scope of mass value at this, they determine uniformity or a unallowed uniformity of a permission of filament dyeing.At this, when making long filament, just can carry out qualitative classification.Therefore for example can be classified into the long filament that produces with high-quality value as the A quality with in addition low qualitative classification is become B or C quality.Especially can process the advantageously reel of hierarchic volumes coiled for the continuation of long filament thus.
In order as far as possible accurately to obtain and the cooling procedure of definite long filament, in embodiment, also be improved thus according to the inventive method according to Fig. 3, promptly, make a measurement point directly be equipped on spinneret, for example obtain the fusion temperature that polymer melt was regulated or directly obtained to polymer-melt temperature by it.For this reason, a temperature sensor 12.5 is shown dotted line on spinneret 1.This temperature sensor 12.5 connects with control device 17 by holding wire equally.The evaluation and the analysis that can add thus for the cooling characteristics of determining monofilament 3.
Another embodiment according to present device that is used to carry out according to the inventive method shown in Figure 4, it as one man constitutes with embodiment according to Fig. 1 and 2 basically.Can difference be described with reference to top description and at this at this point.
In the embodiment shown in fig. 4, except being used for melt-spun and the essential device of cooling, the device that is used to continue handle the long filament of melt-spun is shown example also.Below cooling device 6, spinning-nozzle 2 directly sets a treating apparatus 27 with one or more drafters.Constitute by godet roller or Galette unit at this drafter, their tractives are from the long filament 16 of cooling path and spinning-nozzle 2.The structure of managing device 27 herein depends on wants manufactured filament types.Therefore can produce the long filament of full drawing-off or partial draft.Can be provided with supplementary equipment therefore such as vortex device or temperature-adjusting device or crimping device in addition, so that can carry out each treatment step to long filament.
Make long filament 16 be wound into a reel 28 at last.Be provided with a coiler device 29 for this reason.This coiler device 29 preferably constitutes by a winder capstan head, and it has two Spulspindelspulspindels that are fixed on the rotating disk, and they alternately are used for winding filaments.Therefore can carry out the technology that is used to make long filament 16 continuously.Coiler device 29 is set a controller 18.2, and it connects with control device 17.
By carrying out other method flexible program of the present invention at the device shown in Fig. 4, the cooling air temperature of wherein monitoring filament tow inside is used for control process.Carry out reality-theory between measured temperature and the theoretical value in control device 17 inside relatively the time, the cooling air temperature T that is recording
IstWith required cooling air temperature T
SollBetween difference too big and therefore surpass the situation of the limiting value of permission, have this possibility, produce the control signal that coiler device 29 is controlled in other being used to by deviation signal.For example can control the controller 18.2 that is used to control the controller 18.1 of air blast 9 and is used to control coiler device 29 thus by control device 17.The control of air blast 9 at first impels in a desired manner the cooling with method correction monofilament 3, realizes balance thus between cooling air temperature that records and required cooling air temperature.As long as keep required limiting value, control coiler device 29 like this by controller 18.2, make and realize changing reel.The long filament of the intact manufacturing of quality directly is wound up on the new bobbin.The long filament made from non-best cooling can carry out classification by the winding process of determining targetedly, and the feeding bobbin according to certain standard can be provided in continuing process thus definitely.Be particularly useful for making textile filament at the embodiment shown in Fig. 4.
Another embodiment that is used to carry out according to the inventive method shown in Figure 5 according to present device.This embodiment is basic consistent with the embodiment according to Fig. 3, wherein illustrates with side view at the embodiment shown in Fig. 5.With reference to description, the embodiment according to Fig. 5 is only described by difference for Fig. 3.The label symbol that is consistent at the parts of this identical function.
Produce a plurality of parallel mutually multifilament of making 16 that spin in the embodiment shown in fig. 5 simultaneously.As shown in Figure 5, this equipment has four spinning stations 33.1 to 33.4 altogether.Spinning station 33.1 to 33.4 sets the spinneret 1 of a crossbeam shape, and it is connected with unshowned melt source by melt input unit 4.Spinneret 1 has a spinning-nozzle 2 respectively to each spinning station 33.1 to 33.4.Therefore four spinning-nozzles 2 are fixed on the spinneret 1 side by side altogether.
The cooling device 6 comprise air blowing wall 7 is set below spinneret 1, and it extends on the whole width of spinning station 33.1 to 33.4, the therefore monofilament bar of extruding at spinning station 33.1 to 33.4 3 and air blowing wall 7 guiding of turning up the soil at interval.This air blowing wall 7 is connected (referring to Fig. 3) by the air blowing chamber with air blast.
As shown in Figure 5, each spinning-nozzle 2 in spinning station 33.1 to 33.4 sets an oiling device 30 respectively.This oiling device 30 has the formed body 14 of a taper respectively in spinning station 33.1 to 33.4 inside.One of design is guided the monofilament bar of extruding from the nozzle bore of spinning-nozzle 23 thereon by the wetting guiding seamed edge 15 of oil agent on the blunt end of the formed body 14 of taper.This formed body 14 has distribution duct and liquid chamber for this reason in inside, they are connected with last oil pump 32 by supply pipeline 31.Guarantee to carry continuously oil agent to be used for wetting guiding seamed edge 15 thus to formed body 14.Fluid on guiding seamed edge 15 circumference of formed body 14 coverlet strand 3 continuously receives, and realizes thus oiling uniformly/flooding.
On the awl tip of formed body 14 temperature sensor is set respectively, wherein temperature sensor 12.1 is equipped on spinning station 33.1, and temperature sensor 12.2 is equipped on spinning station 33.2 etc.Temperature sensor 12.1 to 12.4 connects with control device 17 by holding wire.
The oiling device 30 that is equipped on spinning station 33.1 to 33.4 remains on the adjustable for height crossbeam 24 jointly with formed body 14 and temperature sensor 12.1 to 12.4.This crossbeam 24 constitutes by guider 25 adjustable height ground.Can select and change the position of formed body 14 and the height and position of the degree of separation in cooling path and temperature sensor 12.1 to 12.4 thus thus.
Be respectively equipped with thread guide 11 below the cooling device 6 in spinning station 33.1 to 33.4, they make monofilament bar 3 be converged to long filament 16 respectively.
The control device 17 that is connected with temperature sensor 12.1 to 12.4 in the spinning station 33.1 to 33.4 by the holding wire of parallel connection mainly has one or more devices that are used for estimating according to statistical method measured value, and they show and output by output equipment 9.In addition, control device 17 is connected (not shown) by control line here with controller or higher level's control device.
Extrude simultaneously in according to the embodiment of apparatus of the present invention and cool off many long filaments shown in Figure 5.In order to obtain the cooling procedure of monofilament 3 independently of each other, obtain measured temperature and send to control device 17 by temperature sensor 12.1 to 12.4 in each filament tow 3 inside.For each spinning station 33.1 to 33.4, carry out the measured value evaluation in control device 17 inside.This preferably be formed in theoretical value or limiting value scope and measured temperature or the mean value that obtains by measured temperature between reality/theory comparison.Can be directly and the difference comparison of adjacent spinning station in this difference of determining.Therefore can be implemented in the comparison between the filament tow of making in each spinning station.Each filament tow 3 in spinning station 33.1 to 33.4 and therefore every long filament 16 can set mass value, it is can be on technical process obtained continuously and show.
Additionally have this possibility, during deviation between unallowed temperature theoretical value and measured temperature, in the control device 17 inner control signals that produce, they play and change the effect that technology is adjusted.Also can produce alarm signal in addition,, can carry out relative measures by operating personnel thus and carry out correction in the device if define the unallowed value of overstepping the extreme limit.
In according to the embodiment shown in Fig. 1 to 5, cooling air flow constitutes by cooling device for cooled filament, and it produces the cooling air flow of one-sided transversal orientation as the crossing current blowning installation.But also there is this possibility in principle, uses radially directed from outside to inside cooling air, be used for the cooled filament bundle.Also can advantageously on a height, realize a plurality of measurement points in addition in filament tow inside.Be used for separately that the moulding of the guiding mechanism of filament tow is exemplary equally, wherein preferably use circular or annular formed body.But also can use oval or microscler shape in order to separate filament tow.At this, in spinning-nozzle, can use the nozzle bore layout of circle, annular or rectangle.When using annular spinning-nozzle, sensing device is not positioned at filament tow inside with advantageously having additional guiding mechanism yet.
Be suitable for making any multifilament textile according to equipment of the present invention with according to method of the present invention with high uniformity of physical characteristic aspect by synthetic material.Therefore can produce weaving, technology or carpet yarn.The present invention especially extends to following method and apparatus, and the ribbon of being made by polymeric material of wherein many pencil guidings cools off by cooling air or air-flow after extruding.The present invention also is suitable for monitoring the staple fibre melt-spinning process thus.
List of numerals
1 spinneret, 17 control device
2 spinning-nozzles, 18.1,18.2 controllers
3 monofilament, 19 output equipments
4 melt input units, 20 monitors
5 filament tows, 25 21 printers
6 cooling devices, 23 steady arms
7 air blowing walls, 24 crossbeams
8 air blowing chambeies, 25 guiders
9 air blasts, 26,26.1,26.2 sensor stands
10 sensing devices, 30 27 treating apparatus
11 thread guides, 28 reels
12,12.1...12.4 temperature sensor 29 coiler devices
13 guiding devices, 30 oiling devices
14 formed bodys, 31 supply pipelines
Oil pump on the 15 guiding seamed edges 35 32
16 long filament 33.1...33.4 spinning stations
Claims (27)
1. one kind is used for melt-spun and the method for cooling off multifilament, make long filament by polymer melt in the method, wherein many monofilament of extruding are aimed at the cooling air flow cooling of filament tow and then are converged to long filament by one as filament tow, and, measure and monitor the temperature of the cooling air that when cooled filament, occurs, it is characterized in that, at least one measurement point of filament tow inside, measure the temperature of cooling air.
2. the method for claim 1 is characterized in that, measures the temperature at the cooling air at filament tow center, and wherein the external guidance seamed edge by a formed body separates and the guiding monofilament.
3. method as claimed in claim 2 is characterized in that, guides each monofilament of filament tow by the formed body of an annular.
4. as each described method in the claim 1 to 3, it is characterized in that, on the inner and/or outside many measurement points of filament tow, measure the temperature of cooling air simultaneously.
5. method as claimed in claim 4 is characterized in that, in the inner and/or outside measurement that realizes cooling air temperature on the horizontal or vertical measurement point that is provided with abreast of filament tow.
6. as each described method in the claim 1 to 5, it is characterized in that, at least one measured temperature of storage cooling air or a plurality of in succession measured temperature each other in time, and described measured temperature and a theoretical value or a limiting value scope compared.
7. method as claimed in claim 6, it is characterized in that, with in time each other in succession cooling air temperature measured value change into mean value or a plurality of assembly average of a statistics, and the described mean value of measured temperature and a theoretical value or a limiting value scope are compared.
8. as claim 6 or 7 described methods, it is characterized in that the deviation of acquisition and theoretical value or limiting value scope is as a difference or a plurality of difference, and described deviation is changed into a mass value of long filament.
9. method as claimed in claim 8 is characterized in that, utilizes mass value to determine the quality of product parameters.
10. method as claimed in claim 9 is characterized in that, described product parameters is identified for the dyestuff absorbability of the long filament that continues to handle.
11. as each described method in the claim 1 to 10, it is characterized in that, cool off many long filaments by cooling air flow or by a plurality of independent cooling air flows, and detect measured temperature that cools off air and the quality monitoring that this measured temperature is used for each bar long filament for every long filament.
12. as each described method in the claim 1 to 11, it is characterized in that, at least one the instantaneous measured temperature of cooling air and the temperature theoretical value of a storage are compared, and, produce a difference signal and this difference signal is changed into control signal.
13. method as claimed in claim 12 is characterized in that, described control signal is used to change technological parameter or changes the process sequence of determining that long filament is made.
14. method as claimed in claim 13 is characterized in that, described technological parameter influences the cooling of monofilament like this, the feasible cooling air temperature that occurs corresponding to given theoretical value.
15. be used for carrying out the equipment as claim 1 to 14 method as described in each, it has: a spinning-nozzle (2) that is used to extrude many monofilament (3); One is used to produce the cooling device (6) of lateral alignment as the cooling air flow of the monofilament (3) of filament tow (5) guiding; A thread guide (11) that is equipped on spinning-nozzle (2) is used to form the converged position that impels monofilament (3) to assemble; With a sensing device (10) that is used to measure cooling air temperature, it is characterized in that described sensing device (10) is arranged on filament tow (5) temperature inside sensor (12) by at least one and constitutes between spinning-nozzle (2) and thread guide (11).
16. equipment as claimed in claim 15 is characterized in that, temperature sensor (12) sets a guiding mechanism (13), by this guiding mechanism monofilament bar (3) is separated in the long filament flow process between spinning-nozzle (2) and the thread guide (11).
17. equipment as claimed in claim 16, it is characterized in that, described guiding mechanism (13) constitutes by a formed body (14) with external guidance seamed edge (15), this formed body keeps going up guiding monofilament (3) with spinning-nozzle (2) essentially concentric and at guiding seamed edge (15), and temperature sensor (12) keeps and the basic centering of formed body (14).
18. equipment as claimed in claim 17 is characterized in that, described formed body (14) constitutes by a disk or annulus, wherein guides seamed edge (15) and is arranged on the circumference of disk or annulus.
19. equipment as claimed in claim 17 is characterized in that, described formed body (14) constitutes by an oiling device (30), in this oiling device, around guiding seamed edge (15) carry a wetting mechanism.
20. as each described equipment in the claim 15 to 19, it is characterized in that, described sensing device (10) constitutes by a plurality of temperature sensors (12.1,12.2), and these temperature sensors flatly or vertically are arranged side by side inside and/or the outside at filament tow (5).
21. as each described equipment in the claim 15 to 20, it is characterized in that, described sensing device (10) connects with a control device (17), and this control device has the electronic installation that is used to estimate measured value, the device that is used to store the device of data and is used to produce signal.
22. equipment as claimed in claim 21 is characterized in that, described control device (17) is connected with a controller (18.1), is used to change technological parameter or process sequence.
23. equipment as claimed in claim 22 is characterized in that, described controller (18.1) is equipped on a cooling air source (9) of cooling device (6), and this cooling air source is connected with an air blowing wall (7) so that produce the cooling air.
24., it is characterized in that described control device (17) is connected with the output equipment that is used for the output quality value (19) as each described equipment in the claim 21 to 23.
25., it is characterized in that one of them temperature sensor (12.1,12.2) is arranged in 1/3rd above the cooling path that extends as each described equipment in the claim 15 to 24 between spinning-nozzle (2) and thread guide (11).
26., it is characterized in that one of them temperature sensor (12.1,12.2) is fixing by an adjustable for height steady arm (23) as each described equipment in the claim 15 to 25.
27., it is characterized in that described air blowing wall (7) is arranged on the side of spinning-nozzle (2) and is connected with cooling air source (9) by an air blowing chamber (8) as each described equipment in the claim 15 to 26.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102005056041.5 | 2005-11-24 | ||
| DE102005056041 | 2005-11-24 | ||
| PCT/EP2006/011130 WO2007059914A1 (en) | 2005-11-24 | 2006-11-21 | Method and device for melt spinning and cooling a multifilament thread comprising a measurement of the cooling air temperature inside the filament bundle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101313090A true CN101313090A (en) | 2008-11-26 |
| CN101313090B CN101313090B (en) | 2010-12-08 |
Family
ID=37852307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006800437426A Expired - Fee Related CN101313090B (en) | 2005-11-24 | 2006-11-21 | Method and device for melt spinning and cooling a multifilament thread |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1951936B1 (en) |
| CN (1) | CN101313090B (en) |
| DE (1) | DE502006003037D1 (en) |
| WO (1) | WO2007059914A1 (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103952782A (en) * | 2014-05-13 | 2014-07-30 | 张家港欣阳化纤有限公司 | Filament spinning lateral blowing device and blowing technology thereof |
| CN106868612A (en) * | 2017-03-28 | 2017-06-20 | 苏州市朗润纺织科技有限公司 | Cooling device in spinning |
| CN107208316A (en) * | 2015-01-08 | 2017-09-26 | 欧瑞康纺织有限及两合公司 | For the method and apparatus for the fiber webs for stretching a large amount of melt-spuns |
| CN107923072A (en) * | 2015-08-08 | 2018-04-17 | 欧瑞康纺织有限及两合公司 | Method and apparatus for melt-spinning synthetic thread |
| CN111148863A (en) * | 2017-06-29 | 2020-05-12 | 欧瑞康纺织有限及两合公司 | Melt spinning apparatus |
| CN112410901A (en) * | 2020-11-09 | 2021-02-26 | 天长市大发化纤有限公司 | Polyester staple fiber production and processing is with loop type cooling system that bloies |
| CN113758579A (en) * | 2021-09-26 | 2021-12-07 | 中国纺织科学研究院有限公司 | Method for detecting temperature of spinning assembly and spinning equipment |
| CN114855287A (en) * | 2022-04-07 | 2022-08-05 | 桐昆集团浙江恒盛化纤有限公司 | Production process and production equipment of cashmere-like fiber |
| CN117822139A (en) * | 2024-03-01 | 2024-04-05 | 常州市盛杰合力化纤有限公司 | Filament winding breakage-proof equipment for polyester production |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2663976A1 (en) | 2006-10-24 | 2008-05-02 | Qualcomm Incorporated | Enabling resource partitioning for wireless communication systems |
| WO2011117146A2 (en) * | 2010-03-24 | 2011-09-29 | Oerlikon Textile Gmbh & Co. Kg | Method and device for melt spinning and cooling a plurality of synthetic threads |
| CN104053828A (en) * | 2011-11-26 | 2014-09-17 | 欧瑞康纺织有限及两合公司 | Device for producting a tow |
| CN102926011A (en) * | 2012-10-31 | 2013-02-13 | 张家港锦亿化纤有限公司 | Heat preservation plate in cross air blow device |
| CN103307431A (en) * | 2013-06-24 | 2013-09-18 | 苏州锦凯纺织有限公司 | Oiling agent pump with pulleys |
| CN107209127B (en) * | 2015-01-09 | 2020-07-28 | 欧瑞康纺织有限及两合公司 | Method and device for quality monitoring of a plurality of melt-spun fiber strands of a tow |
| DE102022002694A1 (en) | 2022-07-25 | 2024-01-25 | Oerlikon Textile Gmbh & Co. Kg | Thread guide device for guiding synthetic filaments |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA697541A (en) * | 1960-04-29 | 1964-11-10 | Cenzato Lorenzo | Melt-spinning process |
| DE4404258A1 (en) * | 1993-02-22 | 1994-08-25 | Barmag Barmer Maschf | Blow-on device in a spinning apparatus for thermoplastic threads |
| DE10031106A1 (en) * | 1999-07-02 | 2001-01-04 | Barmag Barmer Maschf | Melt spinning of filaments involves controlling the rate of cooling air flow according to the air temperature rise in cooling chimney |
| CN1288285C (en) * | 2002-06-07 | 2006-12-06 | 辽阳天利海岛纤维有限公司 | Production process of superfine composite fiber |
-
2006
- 2006-11-21 DE DE502006003037T patent/DE502006003037D1/en active Active
- 2006-11-21 WO PCT/EP2006/011130 patent/WO2007059914A1/en active Application Filing
- 2006-11-21 EP EP06829081A patent/EP1951936B1/en active Active
- 2006-11-21 CN CN2006800437426A patent/CN101313090B/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103952782A (en) * | 2014-05-13 | 2014-07-30 | 张家港欣阳化纤有限公司 | Filament spinning lateral blowing device and blowing technology thereof |
| CN107208316A (en) * | 2015-01-08 | 2017-09-26 | 欧瑞康纺织有限及两合公司 | For the method and apparatus for the fiber webs for stretching a large amount of melt-spuns |
| CN107208316B (en) * | 2015-01-08 | 2021-01-08 | 欧瑞康纺织有限及两合公司 | Method and device for drawing a mass of melt-spun fiber strands |
| CN107923072A (en) * | 2015-08-08 | 2018-04-17 | 欧瑞康纺织有限及两合公司 | Method and apparatus for melt-spinning synthetic thread |
| CN106868612A (en) * | 2017-03-28 | 2017-06-20 | 苏州市朗润纺织科技有限公司 | Cooling device in spinning |
| CN111148863A (en) * | 2017-06-29 | 2020-05-12 | 欧瑞康纺织有限及两合公司 | Melt spinning apparatus |
| CN111148863B (en) * | 2017-06-29 | 2022-03-22 | 欧瑞康纺织有限及两合公司 | Melt spinning apparatus |
| CN112410901A (en) * | 2020-11-09 | 2021-02-26 | 天长市大发化纤有限公司 | Polyester staple fiber production and processing is with loop type cooling system that bloies |
| CN113758579A (en) * | 2021-09-26 | 2021-12-07 | 中国纺织科学研究院有限公司 | Method for detecting temperature of spinning assembly and spinning equipment |
| CN113758579B (en) * | 2021-09-26 | 2024-01-09 | 中国纺织科学研究院有限公司 | Method for detecting temperature of spinning assembly and spinning equipment |
| CN114855287A (en) * | 2022-04-07 | 2022-08-05 | 桐昆集团浙江恒盛化纤有限公司 | Production process and production equipment of cashmere-like fiber |
| CN117822139A (en) * | 2024-03-01 | 2024-04-05 | 常州市盛杰合力化纤有限公司 | Filament winding breakage-proof equipment for polyester production |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2007059914A1 (en) | 2007-05-31 |
| CN101313090B (en) | 2010-12-08 |
| EP1951936B1 (en) | 2009-03-04 |
| DE502006003037D1 (en) | 2009-04-16 |
| EP1951936A1 (en) | 2008-08-06 |
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