Melt-spinning apparatus

Abstract

The invention relates to a melt-spinning apparatus for producing synthetic threads, having a plurality of melt-spinning devices, a plurality of godet devices and a plurality of spooling machines. The melt-spinning devices each have a plurality of spinning nozzles arranged in a row, with each of which a plurality of driven godets of the godet devices and a plurality of winding points of the spooling machines are associated. At least one control platform is arranged above the spooling machines. In order to achieve as compact a design and the best operability possible, the melt-spinning devices having the spinning nozzles and the spooling machines having the winding points are arranged one above the other, oriented in the same direction, wherein a plurality of control platforms are provided which are individually arranged between adjacent melt-spinning devices.

Description

The invention relates to a melt-spinning apparatus for producing synthetic threads, according to the preamble of claim 1. A melt-spinning apparatus of the generic type for producing synthetic threads is derived from, for example, WO 2005 / 052226 A1.The production of synthetic threads takes place in a plurality of melt-spinninginstallations which are dis posed next to one another along a machine longitudinal side.The melt-spinning installations are assigned godet installations and take-up windingmachines so as to draw off one thread group per melt-spinning installation and windsaid thread group in parallel so as to form packages. The take-up winding machineshere are preferably aligned in relation to a doffing aisle in such a manner that thecompletely wound packages are able to be supplied to the doffing aisle and thus canbe received and dispatched with the aid of doffing devices. The godet installations andmelt-spinning installations here are disposed above the take-up winding machines soas to obtain an ideally vertically aligned thread run. However, operating jobs have to becarried out on both the melt-spinning installations as well as the godet installations atleast at the start of a process.In the melt-spinning apparatus known from WO 2005 / 0522226 A1, an operatingplatform to this end is configured within a machine frame so as to be above the take-upwinding machines and godet installations, the melt-spinning installations being able tobe operated from said operating platform. The operating platform here extends along amachine longitudinal side so as to be parallel to the doffing aisle. Relatively longdistances have to be covered by an operator in order to operate individual melt spinninginstallations in one machine row.A melt-spinning apparatus for producing synthetic threads is also known fromDE 10 2006 061 332 A1, in which melt-spinning apparatus an operating platform isconfigured directly above the take-up winding machines. The operating platform herelikewise extends parallel to a doffing aisle in which a dispatch of the packages takesplace. However, the operating platform here is disposed at a height from which only thegodets of the godet installations are able to be operated. The melt-spinninginstallations cannot be operated from the operating platform and require an additionallevel or additional operating platforms.It is now an object of the invention to refine a melt-spinning apparatus of thegeneric type for producing synthetic threads in such a manner that all installationsabove the take-off winding machine are able to be operated from one operatingplatform.A further objective lies in achieving an ideally compact melt-spinning apparatus forproducing synthetic threads, said melt-spinning apparatus having a minor installationheight.This object is achieved according to the invention in that the melt-spinninginstallations having the spinning nozzles and the take-up winding machines having thewinding positions are disposed on top of one another so as to be identically aligned,and in that a plurality of operating platforms which are disposed so as to besingularized between adjacent melt-spinning installations are provided.Advantageous refinements of the invention are defined by the features andcombinations of features of the dependent claims.The invention possesses the particular advantage that thread guiding whichrequires no, or only minor, deflections of the threads is able to be implementedbetween the melt-spinning installations and the take-up winding machines. Sections inwhich the threads are guided up to a maximum permissible deflection angle can thusbe avoided. The disposal of the operating platforms between the melt-spinninginstallations along the spinning nozzles and the winding position moreover offers thepossibility of carrying out activities at the start of the process and an interruption of theprocess as fast as possible. Adjacent melt-spinning installations here are in each caseable to be operated from one of the operating platforms.In order to minimize the use of ancillary means by an operator, the refinement ofthe invention in which the melt-spinning installations for servicing and operating thespinning nozzles are in each case disposed at an operating spacing from the operatingplatforms is preferably embodied. The scraping of the lower sides of the spinningnozzles can thus be manually carried out, for example.To this end, the operating spacing has a dimension of < 2100 mm between therespective operating platform and the lower side of the spinning nozzle of therespective melt-spinning installation. Even very minor installation heights can thus beimplemented, so that the installations for generating the melt can be held on a first levelabove the melt-spinning installations, for example.The refinement of the invention in which the take-up winding machines aredisposed so as to form a machine row between a doffing aisle and the servicing aisle,and in which the operating platforms are connected by a plurality of stairways to theservicing aisle, is particularly advantageous with a view to automating the production ofthread. For example, the completely wound packages of the take-up winding machinecan thus be dispatched by way of the doffing aisle. The servicing of the take-up windingmachines here can be performed from the servicing aisle without interfering with thetransport of packages. Moreover, the stairways to the operating platforms enable theoperating personnel to reach the latter quickly from the servicing aisle. The servicingand operating personnel can thus freely move within the servicing aisle and theoperating platform. The doffing aisle can be kept free of any personnel.The refinement of the invention in which a floor rail system, by way of which thetake-up winding machines are able to be guided out of the machine row and aredisplaceable longitudinal along the servicing aisle, is formed in the servicing aisle, ispreferably embodied for displacing and transporting the take-up winding machines. Theservicing aisle in terms of the aisle width thereof can thus be substantially limited to thelength of the take-up winding machines. The guiding of the take-up winding machineshere can take place manually or in an automated manner on the rails.In order to be able to carry out the production of the synthetic threads at highefficiency, the refinement of the invention in which the doffing aisle on both longitudinalsides is in each case assigned a separate machine row of the take-up windingmachines having rear servicing aisles is particularly advantageous. Two machine rowsof take-up winding machines can thus be disposed so as to be mutually mirror-symmetrical, the wound packages of said take-up winding machines being dispatchedby way of the doffing aisle.The width of the servicing aisle can be furthermore substantially restricted by therefinement o f the invention in which each of the take-up winding machines is assigneda machine control unit which is in each case connected to the take-up winding machineby a plug connection and is disposed on the operating platform. A separation betweenthe electrical system and the mechanical system of the take-up winding machines thusfacilitates the servicing complexity because only the mechanical components of a take10up winding machine are typically prone to wear. To this extent, the replacement of thetake-up winding machines without the machine control unit is possible.In order for an ideally parallel thread run between the melt-spinning installation andthe take-up winding machine to be implemented, the refinement of the invention inwhich each spinning nozzle of one of the melt-spinning installations is assigned at leasttwo separate godets of one of the godet installations is preferably embodied. To thisend, the godets of the godet installations can be disposed below or above theoperating platform.The refinement of the invention in which each take-up winding machine is in eachcase assigned one suction installation which for receiving and dispatching the threadshas one of a plurality of suction injectors per thread and for guiding the threads isconfigured so as to be movable is particularly suitable for automating the melt-spinningsystem. The threads can thus be acquired by the melt-spinning installations andsupplied to the take-up winding machines in an automated manner.The refinement in which the suction device is adjustable for height in such amanner that the suction injectors receive the threads of the respective melt-spinninginstallation above the operating platform is particularly advantageous here. The spunthreads can thus be received by the suction injectors directly upon startup in one of themelt-spinning installations and for threading up be threaded on the godets of the godetinstallation and on the winding positions of the take-up winding machines.The melt-spinning system according to the invention is particularly suitable forenabling an automated production of synthetic threads. As a result of the aisles foroperating, servicing and doffing being separated, independently operating automaticoperators or robotic operators can be used.The invention will be explained hereunder by means of several exemplaryembodiments of the melt-spinning apparatus according to the invention for producingsynthetic threads, with reference to the appended figures.In the figures:fig. 1 schematically shows a plan view of a first exemplary embodiment of the melt spinningapparatus according to the invention;fig. 2 schematically shows a front view of the machine row of the exemplaryembodiment from fig. 1;fig. 3 schematically shows a lateral view of the machine row of the exemplaryembodiment from fig. 1;fig. 4 schematically shows a lateral view of a machine row of a further exemplaryembodiment of the melt-spinning apparatus according to the invention; andFig. 5 schematically shows a lateral view of a further exemplary embodiment of themelt-spinning apparatus according to the invention.A first exemplary embodiment of the melt-spinning apparatus is schematicallyshown in a plurality of views in figs 1, 2 and 3. Fig. 1 shows the exemplary embodimentin a plan view, fig. 2 in a front view of the machine row of the exemplary embodimentfrom fig. 1, and fig. 3 schematically shows a lateral view of the machine row of theexemplary embodiment from fig. 1. Unless explicit reference is made to any of thefigures, the description hereunder applies to all figures.The exemplary embodiment of the melt-spinning apparatus according to theinvention has a plurality of melt-spinning installations 1, a plurality of godet installations5, and a plurality of take-up winding machines 3 which are disposed on top of oneanother and within a machine row 13 are installed in parallel next to one another. Themachine row 13 of the melt-spinning installations 1, of the godet installations 5 and ofthe take-up winding machines 3 is disposed between a doffing aisle 8 and a servicingaisle 9. The doffing aisle 8 extends parallel to the machine row 13 on a front side 3.2 ofthe take-up winding machines 3.As is derived from fig. 1, the doffing aisle 8 is assigned a second machine row 13'having mirror-symmetrically disposed melt-spinning installations 1', mirror symmetricallyconfigured godet installations 5', and mirror-symmetrically configuredtake-up winding machines 3'. The melt-spinning installations 1 and 1', the godetinstallations 5 and 5' as well as the take-up winding machines 3 and 3' are of identicalconfiguration and explained using the example of the lateral view of the machine row13 illustrated in fig. 3.As is derived from the illustration in fig. 3, the melt-spinning installation 1 has aspinning beam 1.1 which is configured to be heatable and on the lower side thereofsupports a plurality of spinning nozzles 1.3. The spinning nozzles 1.3 by way of adistributor system not illustrated here are connected to a spinning pump 1.2. Thespinning pump 1.2 in an exemplary manner is disposed on the upper side of thespinning beam 1.1. In principle, the spinning pump 1.2 may also be held within thespinning beam 1.1.A spinning duct 1.4 adjoins below the spinning beam 1.1, said spinning duct 1.4being adjoined by a blower chamber 1.5 for supplying cooling air. Within the spinningduct 1.4 a plurality of assembly thread guides 6 are disposed below the spinningnozzles 1.3 so as to gather the filaments are extruded by the spinning nozzles 1.3 soas to form in each case one thread 2. The spinning duct 1.4 extends substantially up toan operating platform 10.1 which forms an operating aisle 10 below the melt-spinninginstallation 1. The operating platform 10.1 is assigned a stairway 11.1 which connectsthe operating platform 10.1 to the servicing aisle 9.As is derived from the illustration in fig. 1, a plurality of operating platforms 10.1,10.2, 10.3 are disposed so as to be distributed between the melt-spinning installations1. Each of the operating platforms 10.1, 10.2, 10.3 is in each case disposed aboveadjacent take-up winding machines 3 between two adjacent melt-spinning installations1. The number of the operating platforms in the melt-spinning apparatus would thusequal half the number of melt-spinning installations. Each of the operating platforms10.1, 10.2, 10.3 here is in each case assigned one of a plurality of stairways 11.1, 11.2,11.3.The melt-spinning installation 1 illustrated in fig. 3 is held in a machine frame whichis not illustrated here and which, conjointly with the take-up winding machine, issupported on a shed floor. The height of the operating platform 10.1 here is chosen insuch a manner that operating and servicing of the melt-spinning installation 1 and ofthe take-up winding machine 3 is able to be carried out from the operating aisle 10. Thespacing of the operating platform 10.1 from a lower side of the spinning nozzles 1.3 isidentified by the capital letter A in fig. 3. The spacing A is at most 2100 mm so that anoperator can carry out scraping of the spinning nozzles without climbing aids.The godet installation 5 and the take-up winding machine 3 are disposed below theoperating platform 10.1. The godet installation 5 in this exemplary embodiment for eachspinning nozzle 1.3 of the melt-spinning installation 1 has in each case two drivengodets 5.1 which are wrapped in a S-shaped manner by one of the threads. Thegodets 5.1, having the drives not illustrated here, are held on a godet support 5.2. Thegodet support 5.2 is supported on a machine frame 3.7 of the take-up winding machine3.The take-up winding machine 3 has two freely protruding winding spindles 3.1which by way of a free end face the doffing aisle 8. The free ends of the windingspindles 3.1 form the front side 3.2 of the take-up winding machine 3. The windingspindles 3.1 are mounted so as to be rotatable on a turret 3.5 which in turn is held soas to be rotatable in the machine frame 3.7. The winding spindles 3.1 by the turret 3.5can be guided in an alternating manner to an operating region for winding the threadsand to a changeover region for doffing the wound packages 7.The take-up winding machine 3 in this exemplary embodiment has a total of fourwinding positions 3.9 so as to simultaneously wind four threads 2 to form packages 7.The number of the winding positions 3.9 in the take-up winding machine 3, as well asthe number of the spinning nozzles 1.3 on the spinning beam 1.1, is exemplary. 10, 12or 16 threads can thus also be spun in parallel next to one another and wound so as toform packages. The winding positions 3.9 of the take-up winding machine 3 are alignedso as to be parallel to the spinning nozzles 1.3 of the melt-spinning installation 1.The take-up winding machine 3 for winding up the threads has a traversinginstallation 3.4 as well as a contact pressure roller 3.8. The contact roller pressure 3.8is held so as to be rotatable in the machine frame 3.7 and when winding the packageslies in a contacting manner on the circumference of the packages.The traversing installation 3.4, the winding spindles 3.1, and the turret 3.5 are ineach case assigned drives 3.6 which on a rear side 3.3 of the take-up winding machine3 are connected to a machine control unit 4. The machine control unit 4 is supported onthe machine frame 3.7 of the take-up winding machine 3 and forms a rear side 3.3 ofthe take-up winding machine. The rear side 3.3 of the take-up winding machine 3 herefaces the servicing aisle 9.As is derived from the illustration in fig. 3, the spinning nozzles 1.3 of the meltspinninginstallation 1 as well as the godets 5.1 of the godet installation 5 are mutuallydisposed in such a manner that the threads 2 are drawn off from the spinning nozzles1.3 and guided next to one another in parallel. The godets 5.1 of the godet installation5 are disposed in pairs directly upstream of the winding positions 3.9 of the take-upwinding machines 3 such that the threads 2 are wound in parallel so as to formpackages 7.During the operation, a polymer melt is supplied to the spinning pump 1.2 andconveyed to the spinning nozzles 1.3. The spinning nozzles 1.3 extrude a multiplicity offine filaments which are cooled within the spinning duct 1.4 and by means of theassembly thread guides 6 are in each case brought together so as to form one thread.The assembly thread guides 6 here are preferably assigned a spin-finish installation,not illustrated here, for wetting the filaments of the thread. The threads 2 are drawn offfrom the spinning nozzles 1.3 by the driven godets 5.1 of the godet unit 5 and in thewinding positions 3.9 of the take-up winding machine 3 wound so as to form packages7. The godet installation 5 usually also has an interlacing installation, not illustratedhere, for interlacing each thread prior to being wound so that the filaments of thethreads are imparted cohesion.A package changeover is carried out as soon as the wound packages 7 have apredetermined external diameter. To this end, the winding spindle 3.1 having thewound packages is guided in the changeover region by the turret 3.5, and the windingspindle 3.1 having empty tubes is guided into the operating region in order to receive anew package. After the thread has been severed and transferred, the packages can bedoffed from the winding spindle 3.1 and dispatched by way of the doffing aisle 8 by adoffing vehicle not illustrated in more detail here.The operating of the melt-spinning installation 1 as well as of the take-up windingmachine at the start of the process is carried out from the operating platform 10.1.Manual operating procedures or else automated operating procedures may be carriedout here.As is derived from the illustration in fig. 1, individual take-up-winding machines 3can be extracted from the machine row 13 so as to be able to carry out servicing jobs.A floor rail system 12 for transporting the take-up winding machines 3 is configured inthe servicing aisle 9. The floor rail system 12 in this exemplary embodiment has twoparallel transverse rails 12.2 as well as two parallel longitudinal rails 12.1 which arealigned in the longitudinal direction of the servicing aisle 9.As is derived from the illustration in fig. 3, the machine frame 3.7 on the lower sidethereof has corresponding rail guides 3.10 which enable the take-up winding machine 3to be guided in the floor rail system 12. As is illustrated in fig. 1, the take-up windingmachine 3 can thus be extracted from the machine row 13 from the rear side 3.3. Assoon as the take-up winding machine 3 has reached a predetermined position, thetake-up winding machine 3 in the longitudinal rails 12.1 is guided to a servicingworkshop.To this end, the servicing aisle 9 has an aisle width which is only 10 to 20% largerthan a length of the take-up winding machine 3 between a front side 3.2 and a rear side3.3. The rear side 3.3 of the take-up winding machine 3 here is formed by the machinecontrol unit 4.In order for the servicing aisle 9 in terms of the aisle width thereof to be minimized,a further exemplary embodiment of the melt-spinning apparatus according to theinvention is schematically shown in a lateral view of the machine row 13 in fig. 4. Theexemplary embodiment as per fig. 4, in terms of the disposal of the melt-spinninginstallations 1, of the godet installations 5 and of the take-up winding machine 3, isidentical to the preceding exemplary embodiment. However, in order for the servicingaisle 9 to be narrowed, the machine control unit 4 in the exemplary embodiment as perfig. 4 is disposed on the operating platform 10.1. The take-up winding machine 3 hereis connected to the machine controller 4 by way of a connection line 4.2 and a plugconnection 4.1. The mechanical components and the electrical components can thusbe substantially separated from one another such that the mechanical components thatare prone to wear are able to be replaced by way of the floor rail system.In order to enable automated operating for threading up the threads in particular atthe start of a process or after an interruption of the process, a further exemplaryembodiment is illustrated in a lateral view of one of the melt-spinning installations 1,one of the godet installations 5 and one of the take-up winding machines 3 in fig. 5.The exempt embodiment as per fig. 5, in terms of the disposal of the multiplicity ofmelt-spinning installations 1, of godet installations 5 and of take-up winding machines3, is identical to the exemplary embodiments as per figs 1 and 2 so that reference tothis end is made to the preceding description.As is derived from the illustration in fig. 5, the take-up winding machine 3 isassigned a suction installation 14. The suction installation 14 has in each case one of aplurality of suction injectors 14.1 per thread. The suction injectors 14.1 are conjointlydisposed on a holder 14.2. The holder 14.2 is guided by way of a movable support 14.3which is held on a frame 14.4. The support 14.3 can be moved in terms of the heightthereof as well as about a rotation axis. The suction injectors 14.1 are connected to awaste line 14.5. The suction installation 14 here is disposed laterally next to the take-upwinding machine 3 in such a manner that the suction injectors 14.1 are able to bepivoted into a thread run plane. To this extent, the suction installation 14 can be guidedto an upper position above the operating platform 10.1 so as to acquire from the melt spinninginstallation 1 the spun threads upon startup. The upper position of the suctioninstallation 14 is illustrated by dashed lines in fig. 5. The threads by way of the suctioninstallation 14 are then guided to a lower position and here supplied to the windingpositions of the take-up winding machine 3. The threading of the threads on the godets5.1 of the godet unit 5 can be enabled, for example, by movably held godets 5.1 suchas known from DE 10117087 A1, for example. To this extent, the exemplaryembodiment of the melt-spinning apparatus according to the invention illustrated in fig.5 is particularly suitable for enabling a fully automatic production of threads.The exemplary embodiments illustrated of the melt-spinning installations 1, of the godet installations 5 and of the take-up winding machine 3, in terms of the configuration thereof, are exemplary. In principle, there is also the possibility of disposing the godets 5.1 of the godet installation 5 that are assigned to the take-up winding machines 3 above the operating platform 10.1.

Claims

1. A melt-spinning apparatus for producing synthetic threads, having a plurality of melt-spinning installations (1) which have in each case a plurality of spinning nozzles (1.3) disposed in a row, having a plurality of godet installations (5) which have in each case a plurality of driven godets (5.1), and having a plurality of takeup winding machines (3) which have in each case a plurality of winding positions (3.9), wherein at least one operating platform (10.1) is disposed above the takeup winding machines (3) , characterized in that the melt-spinning installations (1) having the spinning nozzles (1.3) and the take-up winding machines (3) having the winding positions (3.9) are disposed on top of one another so as to be identically aligned, and in that a plurality of operating platforms (10.1, 10.2, 10.3) which are disposed so as to be singularized between adjacent melt-spinning installations (1) are provided.

2. The melt-spinning apparatus as claimed in claim 1, characterized in that the meltspinning installations (1) for servicing and operating the spinning nozzles (1.2) are in each case disposed at an operating spacing (A) from the operating platforms (10.1, 10.2, 10.3).

3. The melt-spinning apparatus as claimed in claim 2, characterized in that the operating spacing (A) has a dimension of less than 2100 mm between the respective operating platform (10.1, 10.2, 10.3) and the lower side of the spinning nozzles (1.3) of the respective melt-spinning installation (1).

4. The melt-spinning apparatus as claimed in one of claims 1 to 3, characterized in that the take-up winding machines (3) are disposed so as to form a machine row (13) between a doffing aisle (8) and a servicing aisle (9), and in that the operating platforms (10.1, 10.2, 10.3) are connected by a plurality of stairways (11.1, 11.2, 11.3) to a servicing aisle (9).

5. The melt-spinning apparatus as claimed in claim 4, characterized in that a floor rail system (12) by way of which the take-up winding machines (3) are able to be guided out of the machine row (13) and displaceable longitudinally along the servicing aisle (9) is configured in the servicing aisle (9).

6. The melt-spinning apparatus as claimed in claim 4, characterized in that the doffing aisle (8) on both longitudinal sides is in each case assigned a separate machine row (13, 13') of take-up winding machines (3, 3') having a rear servicing aisle (9, 9').

7. The melt-spinning apparatus as claimed in one of claims 1 to 6, characterized in that each of the take-up winding machines (3) is assigned a machine control unit (4) which is in each case connected to the take-up winding machine (3) by a plug connection (4.1) and is disposed on the operating platform (10.1).

8. The melt-spinning apparatus as claimed in one of claims 1 to 7, characterized in that the godets (5.1) of the godet installations (5) are disposed below or above the operating platforms (10.1, 10.2, 10.3), wherein each spinning nozzle (1.3) of one of the melt-spinning installations (1) is assigned at least two separate godets (5.1) of one of the godet installations (5).

9. The melt-spinning apparatus as claimed in one of the preceding claims, characterized in that each take-up winding machine (3) is in each case assigned one suction installation (14) which for receiving and dispatching the threads (2) has one of a plurality of suction injectors (14.1) per thread and for guiding the threads is configured so as to be movable.

10. The melt-spinning apparatus as claimed in claim 9, characterized in that the suction apparatus (14) is adjustable for height in such a manner that the suction injectors (14.1) receive the threads of the respective melt-spinning installation (1) above the operating platform (10.1, 10.2, 10.3).