WO2018153739A1

WO2018153739A1 - Melt-spinning device

Info

Publication number: WO2018153739A1
Application number: PCT/EP2018/053636
Authority: WO
Inventors: Michael SCHRÖTER
Original assignee: Oerlikon Textile Gmbh & Co. Kg
Priority date: 2017-02-25
Filing date: 2018-02-14
Publication date: 2018-08-30
Also published as: DE112018000991A5; DE102017001845A1

Abstract

The invention relates to a melt-spinning device for producing synthetic threads, with a plurality of spinning positions (1.1 - 1.7). Each spinning position (1.1 - 1.7) comprises a spinneret device (2), a cooling device (3), a galette device (6) and a winding device (7). An automatic operating device (9) is provided to spread the threads in the spinning positions (1.1 - 1.7), said device being able to be added to each spinning position (1.1 - 1.7) for the spreading of the threads. The aim of the invention is to obtain reliable guidance and precise positioning during the spreading of the threads. To this end, the automatic operating device (9) is held on the winding device (7) in the spinning positions (1.1 - 1.7), respectively by at least one detachable support bearing (10).

Description

Melt spinning apparatus

The invention relates to a melt spinning device for the production of synthetic threads according to the preamble of claim 1.

Synthetic filaments are made by such melt spinning apparatuses having a plurality of spinning positions. The spinning positions are placed side by side to a machine longitudinal front. Each of the spinning positions has a spinneret assembly with multiple spinnerets for extruding multiple threads. The threads of a spinning position are withdrawn as a group of threads together from the spinnerets and wound parallel to coils at the end of the process in several winding positions of a take-up device. The winding devices of the spinning positions are each equipped with two winding spindles held on a winding turret, so that the threads can be continuously produced in the spinning positions. Only at the beginning of a process or during a process interruption, it is necessary that the yarn sheet of the spinning position is guided by auxiliary devices and applied, for example, to the godet device and the take-up device. Such auxiliary devices are preferably formed by automatic operating devices, which are movably guided along the machine longitudinal front and optionally one of the spinning positions for applying the threads can be fed. Such a melt spinning device is disclosed, for example, in EP 0 010 772.

In the known melt spinning device, the control panel is designed to be movable and guided over a carriage in floor rails. The floor rails run parallel in front of the front ends of the take-up unit. along the machine longitudinal side, so that the automatic control unit can be fed to each of the spinning positions. Here, however, there is the problem that the auxiliary equipment for the removal of the full bobbins and the control panel must move at the same level, so that collisions are inevitable.

In order to avoid such collisions between the transport devices and the operator control machines, an automatic operator is known, for example, from US Pat. No. 5,192,032, which is guided in a monorail above a multiplicity of take-up devices. In this case, however, it is necessary that the control panel is guided vertically adjustable on the monorail. In the case of larger height differences, unwanted elasticities appear in the guide of the control automaton, which makes stable positioning and thus targeted guidance of the filaments impossible.

It is an object of the invention to develop a melt spinning device for the production of synthetic threads of the generic type such that on the one hand at each of the spinning positions a defined thread guide when creating the threads is possible and on the other hand the clearing and transporting the coils produced is not hindered.

This object is achieved according to the invention by the automatic control device being held in the spinning positions by at least one detachable support bearing on the winding device.

Advantageous developments of the invention are defined by the features and feature combinations of the subclaims. The invention has the particular advantage that all the supporting forces arising from the automatic control unit can be absorbed by a machine frame of the take-up device. Furthermore, it is particularly advantageous that the automatic control device receives a defined position within the spinning position at each of the wind-up devices, which favors the guiding and application of the yarn sheet within the spinning position with high accuracy. Thus, positional deviations can be advantageously eliminated in the installation of the take-up devices. The control unit receives by the support bearing on the take-up a defined position within the spinning position, which determines the sequence of movement on the control machine as the zero point of a coordinate system.

In order to obtain a fast and secure connection of the operating automatic to the take-up device as far as possible, the development of the invention is preferably carried out, in which the releasable support bearing is designed as a plug-in connection, wherein the automatic control device has a plug-in means and the take-up device a receiving means which advantageous even connect to the take-up.

The insertion means on the operating machine is preferably formed by a mandrel and the receiving means of the take-up preferably by a support tube. This allows the connection and then the support bearing between the Bedienungsautoma- th and the take-up realized by a simple linear movement.

In order to ensure a secure hold of the operating machine during operation of the spinning position, the plug-in means on the support bearing at least one locking means for locking the control panel assigned to the take-up device. Such locking means may be formed for example by rotary latch, which cooperate with a retaining bolt on the winding device. To accommodate larger support forces is further provided that the support tube is arranged on a front side of the take-up on a machine frame. Thus, there is also the possibility that the control panel can operate in addition to the creation of the threads and the removal of coils.

The support tube is preferably formed at an insertion opening with a V-shaped inlet collar, in order to obtain the closest possible centering between the support tube and the mandrel of the operating machine.

Basically, it is possible that the control unit is coupled to the power supply with a flexible energy chain. Particularly advantageous, however, is the development of the invention, in which the control panel is connected to the power supply in one of the spinning positions with a detachable energy coupling device which is formed in the region of the support bearing on the take-up. This way, a needs-based energy supply can be guaranteed at the same time.

The control unit is preferably guided vertically adjustable on a monorail, which extends above the winding devices parallel to a machine longitudinal side. Thus, the manufacturing process of the spinning positions is not disturbed. In order to carry out the operating activities in the spinning position, for example after a process interruption, the operating automatic machine is preferably designed with a controllable robot arm, which is arranged on a carrier plate held above the support bearing. Thus, very individual guides of the threads can be made for application to godets and winding stations of the take-up device.

For the guidance of the threads, the operating machine for this purpose has a movable suction injector, which can be guided by the robot arm for applying a thread set in the godet device and the take-up device.

The melt spinning device according to the invention is therefore particularly suitable for enabling a fully automated production of threads. The operating effort for an operator is significantly reduced and essentially determined by the control function.

The melt spinning device according to the invention will be explained in more detail below with reference to an embodiment with reference to the accompanying figures.

They show:

1 shows schematically a front view of a plurality of spinning positions of the melt spinning device according to the invention

Fig. 2 shows schematically a side view of one of the spinning positions of the melt spinning device according to the invention

3 shows schematically a view of the automatic operating device of the melt spinning device according to the invention according to FIGS. 1 and 2 Fig. 4 shows schematically a side view of one of the spinning positions when creating the threads

5 is a schematic cross-sectional view of a support bearing of the embodiment of the melt spinning apparatus of FIGS. 1 and 2

1 and 2 an embodiment of the inventive melt spinning device with several spinning positions in a front view and in a side view is shown. The following description applies to both figures, insofar as no explicit reference is made to one of the figures.

The embodiment of the melt spinning device according to the invention has a plurality of spinning positions 1.1 to 1.7, which are arranged side by side in a row-shaped arrangement and form a machine longitudinal side. The number of spinning positions shown in Fig. 1 are only exemplary. In principle, such melt spinning apparatuses contain a multiplicity of identical spinning positions.

The spinning positions 1.1 to 1.7 shown in FIGS. 1 and 2 are identical to their construction. Using the example of the spinning position 1.1 shown in a side view in FIG. 2, the devices are described in more detail below.

Each of the spinning positions 1.1 to 1.7 has a spinneret device 2. The spinneret device 2 comprises a spinneret 2.2, which carries a plurality of spinnerets 2.1 on its underside. The spinnerets 2.1 are coupled to a spinning pump 2.3, which is preferably designed as a multiple pump and generates a separate melt stream for each spinneret 2.1. The spinning pump 2.3 is a melt feed 2.4 with a not shown melt source, for example, connected to an extruder.

Below the spinneret device 2, a cooling device 3 is arranged, which is formed in this embodiment by a cooling shaft 3.1 within a blast chamber 3.3. The cooling shaft 3.1 follows in the thread running direction a chute 3.2.

Below the chute 3.2, a collecting device 4 is provided, which has a plurality of yarn guides 4.1 in order to merge the filaments extruded per spinneret 2.1 into a yarn. In this embodiment, the spinneret device 2 generates four threads. The number of threads is exemplary. Thus, such spinneret devices 2 can produce up to 32 threads per spinning position.

The collecting device 4 is assigned a preparation device 5, through which the threads of a yarn sheet 8 are wetted. The threads are withdrawn as a yarn sheet 8 by a godet 6 and fed to a take-up device 7. In this exemplary embodiment, the godet device 6 is formed by two driven godets 6.1.

The winding device 7 has per thread of the yarn sheet 8 each have a winding point 7.5. The winding stations 7.5 extend along a winding spindle 7.1, which is held cantilevered on a winding turret 7.2. The winding turret 7.2 carries two winding spindles 7.1, which are alternately guided in a winding area and a change area. Each of the winding stations 7.5 is assigned to the division and separation of the yarn sheet 8 each one of several Umlenkröllchen 7.6, which are the godet 6 immediately downstream. For winding and laying the threads to coils, each winding point 7.5 has a traversing unit 7.3. The traversing units 7.3 cooperate with a pressure roller 7.4, which is arranged parallel to the winding spindles 7.1 and abuts the winding of the threads on the surface of the coil 14.

In FIGS. 1 and 2, the spinning positions 1.1 to 1.7 are shown in their normal operating situation, in which in each spinning position 1.1 to 1.7 a yarn bundle 8 consisting of a plurality of yarns is extruded, drawn off and continuously wound into reels 14.

In order to operate the spinning positions 1.1 to 1.7 in a process interruption or restart, a control panel 9 is provided. In Figs. 1 and 2, the control panel 9 is shown in a waiting position. For this purpose, the control panel 9 is held vertically adjustable via a cable pulling device 13 on a monorail device 12. For explanation of the operating machine 9, reference is made in addition to FIG. 3 below.

In Fig. 3 is a view of the control panel 9 is shown. The control panel 9 has a controllable robot arm 9.1, which is held on a support plate 9.3. In addition to the robot arm 9.1, the automatic control unit 9 has a suction injector 9.2, which is connected via a waste line 9.5 to a yarn container 9.4. In this embodiment, the yarn container 9.4 is held on the support plate 9.3. The support plate 9.3 has at opposite end faces in each case a deflection roller 13.1 of the cable pulling device 13. This allows the support plate 9.3 adjusted in height by the cable pulling device 13. As can be seen in particular from the representation in FIG. 2, the carrier plate 9.3 has a mandrel 10.2 on a side facing the front ends of the winding device 7. The mandrel 10.2 is part of a support bearing 10, which is located as a plug connection to the end faces of the winding devices 7.

As can be seen from the illustrations in FIGS. 1 and 2, each of the winding devices 7 has a support tube 10.1 at the front end, which is integrated in a machine frame 7.7. The support tube 10.1 has an insertion opening 10.4, which is encased by a V-shaped collar 10.3.

In the event that in one of the spinning positions 1.1 to 1.7 an operation for applying the threads is required, the control panel 9 can lead to the respective spinning position and bring by the cable pulling device 13 to a defined working height to the mandrel 10.2 automatically into the support tube 10.1. Thus, the support bearing 10 is formed, with which the control panel 9 is supported on the machine frame 7.7 of the winding device 7. This situation is shown in FIG. In Fig. 4, the side view of the spinning position 1.1 is shown schematically, in which the control panel 9 is connected via the support bearing 10 with the winding device 7. In order to secure the position of the automatic operating device 9 on the winding device 7, a blocking means 15 is furthermore provided, which is secured by a holding bolt 15. nengestell 7.7 of the winding device 7 and is formed by an adjustable rotary latch 15.2 at the bottom of the support plate 9.3. In that regard, the position of the automatic control unit 9 can be fixed to the end face of the winding device 7.

In the operating situation shown in Fig. 4, the yarn sheet 8 is guided over the suction injector 9.2 of the control panel 9. The pig injector 9.2 is held by the robot arm 9.1 for this purpose. The energy required for controlling and moving the robot arm 9.1 and the compressed air required for the suction injector 9.2 can be supplied via an energy chain. In principle, however, it is also possible to make the power supply via an energy coupling device on the winding device 7. For this purpose, an embodiment of a possible energy coupling device 1 1 is shown in Fig. 5.

In Fig. 5 is a cross-sectional view of the support bearing 10 at the front end of a winding device 7 is shown. The support bearing 10 is formed by the carrier tube 10.1 integrated in the machine frame 7.7 of the take-up device 7 and the mandrel 10.2 held on the carrier plate 9.3. Within the mandrel 10.2, the energy coupling device 1 1 is formed, in each case a compressed air connection 1 1.1 and a power connection 1 1.2 are designed as a plug connection. Thus, the required energy supply of the operating machine 9 can be carried out via the winding device 7.

The exemplary embodiment of the melt spinning device according to the invention shown in FIGS. 1 to 5 is exemplary in the design of the automatic operating device 9 and the auxiliary device used for applying and guiding the threads. In principle, there is a possibility that For example, each spinning position is assigned a separate suction injector 9.2, which is then taken over and used if necessary by a robot arm of the control panel. Likewise, the leadership of the control panel 9 on a monorail system is exemplary. In principle, the control panel can also be made mobile.

Claims

claims

Melt spinning device for producing synthetic threads having a plurality of spinning positions (1.1 - 1.7), each having a spinneret device (2), a cooling device (3), a godet device (6) and a take-up device (7), and having an automatic operating device (9), which is fed to each of the spinning positions (1.1 - 1.7) for applying the threads, characterized in that the automatic control unit (9) in the spinning positions (1.1 - 1.7) each by at least one detachable support bearing (10) leinrich the Aufwicke - tion (7) is held.

Melt spinning device according to claim 1, characterized in that the support bearing (10) as a plug connection (10.1, 10.2) is executed, wherein the control panel (9) has a plug-in means (10.2) and the take-up device (7) receiving means (10.1).

Melt spinning device according to claim 2, characterized in that the insertion means on the automatic operation machine (9) by a mandrel (10.2) and the receiving means of the take-up device (7) by a support tube (10.1) are formed.

Melt spinning device according to claim 1 or 2, characterized in that the plug-in means (10.2) on the support bearing (10) is associated with at least one locking means (15) for locking the control panel (9) on the take-up device (7).

Melt spinning device according to one of claims 3 or 4, characterized in that the carrier tube (10.1) is arranged on a front side of the take-up device (7) on a machine frame (7.7).

6. melt spinning apparatus according to claim 5, characterized in that the carrier tube (10.1) at an insertion opening (10.4) has a V-shaped inlet collar (10.3), which opens into the insertion opening (10.4).

7. Melt spinning device according to one of claims 1 to 6, characterized in that the control unit (9) for supplying energy in one of the spinning positions (1.1 - 1.7) with a releasable energy dome coupling device (1 1) is connected, in the region of the support bearing

(10) is formed on the winding device (7).

8. melt spinning device according to one of claims 1 to 7, characterized in that the control panel (9) is guided vertically adjustable on a monorail device (12) which extends above the

Winding devices (7) extends parallel to a machine longitudinal side.

9. melt spinning apparatus according to one of claims 1 to 8, characterized in that the control panel (9) has a controllable robot arm (9.1), which is arranged on a support plate on the (10) held support plate (9.3).

10. Melt spinning device according to claim 9, characterized in that the operating machine (9) has a movable suction injector (9.2) which can be guided by the robot arm (9.1) for planting a group of threads in the godet device (6) and the take-up device (7).