WO2018178006A1

WO2018178006A1 - Melt-spinning apparatus

Info

Publication number: WO2018178006A1
Application number: PCT/EP2018/057633
Authority: WO
Inventors: Marc-André HERRNDORF; Rainald Voss; Stefan Faulstich
Original assignee: Oerlikon Textile Gmbh & Co. Kg
Priority date: 2017-04-01
Filing date: 2018-03-26
Publication date: 2018-10-04
Also published as: DE112018001817A5; CN110462117A; DE102017003189A1; JP2020513067A; JP7216008B2; CN110462117B

Abstract

The invention relates to a melt-spinning apparatus for producing synthetic threads, having a large number of spinning positions. Each of the spinning positions has a spinneret device, a cooling device, a godet device and a winding device. An automatic operator is provided to piece the threads in the spinning positions, said operator being able to be moved to each of the spinning positions in order to piece the threads. In order to obtain reliable guidance and exact positioning for piecing the threads, according to the invention, the guiding device is formed by an overhead track, on which the automatic operator is guided, wherein the automatic operator is held in stationary manner in the spinning positions in each case by a controllable locking means within the overhead track.

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 The threads of a spinning position are withdrawn together as a group of threads from the spinnerets and wound parallel to spools at the end of the process in several winding positions of a take-up device.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 revolver so that the threads can be continuously produced in the spinning positions. Only at the beginning of a process or in the event of a process interruption is it necessary that the yarn sheet of the spinning position be guided by auxiliaries 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 apparatus is disclosed, for example, in EP 0 010 772 A1.

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 operating machine, an operating machine 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. For larger differences in height, however, put in the leadership of the control panel unwanted elasticity, which makes a stable positioning and thus targeting the threads 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 in that the guide device is formed by a monorail, on which the Bedienungs- is performed and that the automatic machine is held in the spinning positions in each case by a controllable locking means within the monorail. Advantageous developments of the invention are defined by the features and feature combinations of the subclaims.

The invention has the particular advantage that the control unit assumes and maintains a defined position in each of the spinning positions, which favors the guiding and application of the group of threads within the spinning position with high accuracy. In addition, a Doffgang remains free parallel to the winders to carry out the removal of the full bobbins from the spinning positions out.

Since deviations between the desired desired positions of the take-up devices are possible when setting up the take-up devices in the spinning positions, the development of the invention is particularly advantageous, in which the locking means is formed by at least one controllable electromagnet. The magnetic locking of the operating machine achieved in this way is position-independent and can essentially be extended to a locking area in which the operating machine is positioned. Thus, for example, the exact position of the pallet device and / or the winding device could be detected by a position sensor and thus trigger a targeted locking. The control panel is fixed stationary in the monorail by the lock.

Thus, in any spinning position, the electromagnet for locking a lentarily high holding force can generate, the development of the invention is preferably carried out, in which the electromagnet is disposed on the control panel and cooperates in one of a plurality of holding positions, each with a fixed contact point, each of Spinning positions one of the contact points is assigned. Thus, the area in which the electromagnet is fixed to the operating automat on the monorail is predetermined by the contact point assigned to the electromagnet. Within the contact point, however, the electromagnet can be fixed in a holding region, depending on the position of the take-up device and the godet device.

Alternatively, however, it is also possible that several stationary electromagnets associated with the spinning positions are arranged distributed on the monorail and that the electromagnets interact with a contact point formed on the automatic operator. Here, the activation of the electric motors is carried out via a control device which is wirelessly coupled to a device control of the operating machine. To create a group of threads in one of the spinning positions, it is necessary that the group of threads be picked up by the operating machine for a short time and discharged to a Garnabfallbehälter. In order to operate the auxiliary equipment required for this purpose on the automatic operating device, the development of the invention is particularly advantageous, in which each of the spinning positions is assigned one of several connection stations, each with a compressed air connection for the transmission of compressed air, which interact with a connection adapter arranged on the operating machine. Thus, the control panel can advantageously connect automatically to a compressed air supply in each of the spinning positions.

In addition, it is provided that the connection stations next to the compressed air connection, a waste port for receiving yarn waste wherein the connection adapter connects a compressed air line and a waste line on the control unit with the terminals of the connection station. Thus, the yarn sheet taken in the spinning position can each lead into a central Garnabfallbehälter. Intermediate storage and possible emptying of small containers are eliminated.

In order for the control panel to reach the spinning position required for operation as quickly and precisely as possible, it is further provided that the control panel has a conveying device through which the automatic control device is guided on the monorail. This allows the control panel to move back and forth between spinning positions as needed.

In order to be able to carry out the application and threading of the threads on the godets of the godet device and the winding points of the take-up device with high flexibility, the operating device is preferably designed with a controllable robot arm, which is arranged on a carrier held on the monorail. Due to the free mobility of the robot arm very high degrees of freedom to guide the yarn sheet when creating achieved.

The leadership of the yarn sheet is preferably carried out by a movable suction injector, which can be guided by the robot arm for applying a group of yarn in the godet device and the take-up of one of the spinning positions.

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

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:

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

FIG. 2 schematically shows a front view of an automatic operating device of the melt spinning device according to the invention according to FIG. 1. FIG

FIG. 3 schematically shows a side view of one of the spinning positions of the melt spinning device according to the invention according to FIG. 1. FIG

4 is a schematic side view of the automatic operating device of the melt spinning device according to the invention according to FIG. 2

Fig. 5 shows schematically a side view of one of the spinning positions when creating the threads

FIG. 6 schematically shows a cross-sectional view of a connection station of one of the spinning positions of the melt spinning apparatus of FIG. 1 and FIG. 3

1 and 3, an embodiment of the melt spinning device according to the invention 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 3 are identical in their construction. Using the example of the spinning position 1.1 shown in a side view in FIG. 3, 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 connected via a melt feed 2.4 with a melt source not shown here, for example an extruder.

Below the spinneret device 2, a cooling device 3 is arranged, which in this exemplary embodiment is formed 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 arranged, which has a plurality of yarn guides 4.1, 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 embodiment, the godet device 6 is formed by two driven godets 6.1. Between the godets 6.1 a swirl 6.2 is arranged to swirl the threads of the yarn sheet 8 separately.

The winding device 7 has per thread of the yarn sheet 8 each have a winding point 7.5. The total of four winding stations 7.5 extend along a winding spindle 7.1, which is held projectingly on a winding turret 7.2. The winding turret 7.2 carries two winding spindles 7.1, which are guided alternately in a winding area and a changing 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 points 7.5 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 bears against the surface of the spool 14 during winding of the threads. In Figs. 1 and 3, 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 extruded from a plurality of threads yarn sheet 8 is extruded, withdrawn and wound continuously to coils 15.

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 3, the control panel 9 is shown in a waiting position. The control unit 9 is held on a guide device 10. The guide device 10 is formed in this embodiment by a monorail 10.1, which extends parallel to the machine longitudinal side of the spinning positions, so that the control panel 9 each of the spinning position 1.1 to 1.7 can be fed. For explanation of the automatic control device 9, reference is made in addition to FIGS. 2 and 4 below. In Fig. 2 is a front view of the operating machine as shown in the spinning device of FIG. 1, shown enlarged and in Fig. 4 is a side view of the operating machine as shown in Fig. 3, shown enlarged. Unless expressly related to any of the figures, the following description applies to all figures.

The control panel 9 has a support body 9.3, which is held at one end to the overhead conveyor 10.1. For this purpose, the conveying body 9.3 is assigned a conveying means 9.4, which is formed by a drive 9.5 and a drive motor 9.6. With the drive 9.5 of the control panel 9 is guided in the overhead conveyor 10.1. For this purpose, the overhead conveyor 10.1 two guide rails 10.2 and 10.3. Below the guide rail 10.2 a locking means 1 1 is provided to fix the control panel 9 in the guide device 10. In this embodiment, the locking means 1 1 a controllable electromagnet 1 1.2. The electromagnet 1 1.2 is arranged on a holder 1 1.3. The holder 1 1.3 is fixedly arranged on the support body 9.3 of the control panel 9. The solenoid 1 1.2 is connected via a control line with a device control unit 9.7 of the control panel 9. In the illustrated situation, the electromagnet 1 1.2 is activated and coupled to a contact point 1 1.1 on the guide device 10. The contact point 1 1.1 is for this purpose arranged directly below the guide rail 10.2 of the overhead track 10.1. Thus, the control unit 9 is held in the waiting position of the melt spinning device on the guide device 10 arrested.

At an opposite end of the carrier body 9.3 a robot arm 9.1 is held. The robot arm 9.1 has a freely projecting leading end, on which a suction injector 9.2 is guided. The projecting robot arm 9.1 is freely movable by actuators and sensors, not shown here, wherein the movement of the robot arm 9.1 is controlled by the device control unit 9.7. The power supply of the operating machine 9 takes place for example by an energy chain. For operating the suction injector 9.2, the automatic control unit 9 cooperates with a connection station 12 in each of the spinning positions. 4, the connection station 12 of the spinning position 1.1 is shown. In order to explain terminal station 12, reference is made to FIG. 6 in addition to FIG. taken in which a state shown in which the control panel 9 is connected via a connection adapter 12.3 with the connection station 12. As is apparent from FIGS. 4 and 6, the connection adapter 12.3 is arranged on the support body 9.3 of the control unit 9. The connection adapter 12.3 is coupled to an actuator 12.4, which leads the connection adapter 12.3 back and forth for coupling to one of the connection stations 12. FIG. 4 shows the situation in which the operating machine 9 is held in the waiting position and thus there is no connection of a connection station 12. FIG. 6 illustrates the situation in which the connection adapter 12.3 is coupled to the connection station 12. For this purpose, the connection station 12 has a compressed air connection 12.1 and a waste connection 12.2, which are connected via a central compressed air line 17 to a central compressed air source, not shown here, and via a central waste line 16 to a central waste container. The connection adapter 12.3 is coupled to the connection station 12 in such a way that a compressed air line 13 arranged on the control automatic machine is connected to the compressed air connection 12.1 and a waste line 14 is connected to the waste connection 12.2, for example by plug-in couplings. The compressed air line 13 and the waste line 14 are coupled to the suction injector 9.2, so that it is ready to receive a group of threads.

In the situation shown in Fig. 4, the connection adapter 12.3 is in a retracted waiting position.

As can be seen from the illustration in FIG. 1, each of the spinning positions 1.1 and 1.7 in each case has one of a plurality of connection stations 12. There- with the possibility exists that the control panel 9 automatically connects in each of the spinning positions 1.1 to 1.7 via the connection adapter 12.3 with one of the connection stations 12. As is apparent from the illustration in Fig. 1, a plurality of contact points 1 1.1 are provided for locking the control panel 9 on the guide device 10. The contact points 1 1.1 are assigned to the spinning positions 1.1 to 1.7, so that the held on the control unit 9 solenoid 1 1.2 can be connected to either the contact points 1 1.1.

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 be led from the waiting position to a holding position of the respective spinning position. In this case, the relevant spinning position 1.1 to 1.7 is approached by the operating machine 9. After positioning with the aid of sensors not shown here is about the device control unit 9.7 of the solenoid 1 1.2 for locking the control panel 9 at the relevant contact point 1 1.1 activated. Subsequently, the actuator 12.4 is activated by the device control unit 9.7, so that the connection adapter 12.3 is coupled to the relevant connection station 12 of the respective spinning position. Now the control panel 9 is ready to take over the yarn sheet 8 in the spinning position. In Fig. 5, the situation is shown, in which the yarn sheet 8 is guided in the spinning position 1.1 through the control panel 9. The yarn sheet 8 is received via the suction injector 9.2 and discharged via the waste line 14 to a central waste container. The suction injection Tor 9.2 is performed by the robot arm 9.1 for applying and threading the threads of the yarn sheet 8 in the godet 6 and the winding device 7. After the yarn sheet has been transferred to the winding device 7, the automatic control unit 9 can be decoupled via the device control unit and returned from the holding position to the waiting position.

The exemplary embodiment of the inventive melt spinning device illustrated in FIGS. 1 to 5 is exemplary in the design of the operating machine 9 and in the configuration of the devices of the melt spinning device. Thus, for the treatment of the threads within the spinning position further facilities may be needed. Likewise, the godet device can have a plurality of godets for drawing the threads.

In particular, the control unit could have additional control devices to check, for example, a compressed air coupling by a compressed air measurement. In addition, the control panel can also be used as a ground vehicle along floor rails.

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 guided by a guide device (10) parallel to the arranged in a row spinning positions (1.1 - 1.7) and each of the spinning positions (1.1 - 1.7) can be fed to apply the threads, characterized in that the guide means (10 ) is formed by a monorail (10.1) on which the automatic operation machine (9) is guided, and in that the automatic control unit (9) in the spinning positions (1.1 - 1.7) in each case by a controllable locking means (1 1) within the overhead conveyor (10.1) is held stationary.

Melt spinning device according to claim 1, characterized in that, the locking means (1 1) by at least one controllable electromagnet (1 1.2) is formed.

Melt spinning device according to claim 2, characterized in that the electromagnet (1 1.2) is arranged on the automatic operating device (9) and in one of a plurality of holding positions, each with a stationary contact point (1 1.1) cooperates, each of the spinning positions (1.1 - 1.7) a the contact points (1 1.1) is assigned.

Melt spinning device according to claim 2, characterized in that a plurality of the spinning positions (1.1 -1.7) associated stationary Electromagnets (1 1.2) distributed on the overhead conveyor (10.1) are arranged and that the electromagnets (1 1.2) with a on the control panel (9) formed contact point (1 1.1) cooperate.

Melt spinning device according to one of claims 1 to 4, characterized in that each of the spinning positions (1.1 - 1.7) is associated with one of a plurality of connection stations (12) each having a compressed air connection (12.1) for the transmission of compressed air, which is connected to a control unit (9). arranged connection adapter (12.3) cooperate.

Melt spinning device according to claim 5, characterized in that the connection stations (12) next to the compressed air connection (12.1) has a waste port (12.2) for receiving Garnabfälle, wherein the connection adapter (12.3) a compressed air line (13) and a waste line (14) on the control panel (9) connects to the connections (12.1, 12.2) of the connection station (12).

Melt spinning device according to one of claims 1 to 6, characterized in that the control panel (9) has a conveying means (9.4), through which the control panel (9) on the overhead conveyor (10.1) is guided.

Melt spinning device according to one of claims 1 to 7, characterized in that the automatic control unit (9) has a controllable robot arm (9.1), which is arranged on a carrier body (9.3) held on the monorail (10.1).

9. melt spinning apparatus according to claim 8, characterized in that the control panel (9) has a movable suction injector (9.2), which by the robot arm (9.1) for applying a group of yarns in the godet device (6) and the winding device (7) one of the spinning positions (1.1, 1.7) is feasible.