EP2132122A1

EP2132122A1 - Apparatus for winding up a thread

Info

Publication number: EP2132122A1
Application number: EP08708784A
Authority: EP
Inventors: Claus Matthies
Original assignee: Oerlikon Textile GmbH and Co KG
Current assignee: Oerlikon Textile GmbH and Co KG
Priority date: 2007-02-07
Filing date: 2008-02-07
Publication date: 2009-12-16
Anticipated expiration: 2028-02-07
Also published as: ATE513781T1; CN101583551A; WO2008095982A1; CN101583551B; EP2132122B1

Abstract

The invention relates to an apparatus for winding up a thread having two bobbin spindles (31, 32) which can be driven for receiving at least one thread lap (8.1). The bobbin spindles are held in a projecting manner on a movably arranged spindle carrier (2) and are guided by the spindle carrier alternatively into an operating position for winding the thread and a changing position for removing the thread lap. In order to change the thread lap, a doffer device (9) is provided which has a depositing table (10) which is arranged movably in the machine frame (1), wherein the depositing table can be guided between a removal position and a parked position in order to accept the thread lap. In order to make short changing times possible, according to the invention the depositing table is arranged in the machine frame directly in front of the bobbin spindle (3.1, 3.2) which is held in the changing position, and can be guided out of the removal position into the parked position by a pivoting movement, wherein, in the parked position of the depositing table, the thread lap (8.2) is arranged outside an imaginary axle extension of the bobbin spindle which is held in the changing position. It is therefore possible without delay to carry out a further operation of the bobbin spindle by plugging on a bobbin tube.

Description

Device for winding a thread

The invention relates to a device for winding a thread according to the preamble of claim 1.

In the production of synthetic threads, it is common that the threads are wound up after melt spinning by winders to individual thread windings. To realize a continuous flow of material preferably take-up devices are used with two projecting winding spindles, which are arranged on a movable spindle carrier and are guided alternately in an operating position for winding the thread and in a change position for changing the thread winding. Thus, the spun yarns can be wound up to thread windings continuously after an individual treatment without interrupting the process. In addition, it is known that for the automation of the winding devices so-called Doffereinrichtun- conditions are provided for changing the thread winding, by which the thread winding are taken over after completion of the winding spindles and provided for removal. Such a winding device with integrated doffer device is known, for example, from EP 0 025 128 A1.

The known device for winding a thread has two winding spindles, which are held cantilevered on a spindle carrier. The spindle carrier is rotatably mounted in the form of a turntable in a machine frame, so that the winding spindles are alternately performed in an operating position for winding a thread and in a change position for changing a thread winding. To change the filament winding a doffer is arranged in the lower part of the machine frame, which has a movable storage table. The storage table can in this case from a lower below the winding spindle arranged rest position out in the horizontal direction and vertical direction move. To take over the thread winding of the delivery table is first performed from the lower rest position to a removal position below the held on the winding spindle thread winding. Subsequently, the thread winding is taken over by the tray table by a horizontal movement and held in a parking position directly in the area in front of the winding spindles. In the park position, the filament rolls are kept ready for further transport.

The movements and the arrangement of Doffereinrichtung inevitably lead to very long change times. In the changeover time, however, a new filament winding is wound parallel to the winding spindle held in the operating position. In order to allow the diameter increase of the yarn winding, however, it is necessary that the spindle carrier executes a deflection movement with the winding spindle held in the operating position. Thus, in practice, the desire for very short change times, since the winding spindle held in changing position is inevitably entrained by movement of the spindle carrier. Furthermore, it is necessary that after deduction of the yarn winding from the winding spindle for receiving a new yarn winding an empty winding tube must be plugged onto the winding spindle held in the change position. In the known device, there is thus a further problem that the mounting of the empty winding tubes can take place after a much later time, after the thread windings have finally been transported away. The winding spindle to be equipped has already taken a completely changed position in this period, so that the change of the thread winding and the loading of the winding tubes must take place in different positions. The known device for winding threads is thus completely unsuitable to perform an automated process in the shortest possible change times can.

From DE 195 05 838 Al a device for winding threads is known, in which the thread is also wound alternately on two winding spindles to a filament winding. The arranged in the lower machine frame of the winding doffer device also has a storage table, which is held vertically and horizontally movable in the machine frame. Here, the parking position of the tray table is provided for automation in a lower region below the winding spindle, so that can be the thread winding herausfuhren from the operating side of the winding spindle, so that the free end of the winding spindle for attaching an empty winding tube immediately after the yarn change is ready, but with the disadvantage that the Doffereinrich- tion must have a plurality of drive means for horizontal and vertical movement of the tray table.

It is an object of the invention to provide a device for winding a thread of the generic type in such a way with a Doffereinrichtung that allows automation of Wickeins and Wechseins the filament winding with little equipment.

Another object of the invention is to provide a device for winding a thread of the generic type, with which very short changeover times for taking over a thread winding and equipping a winding tube on a winding spindle are executable.

It is also an object of the invention to provide a device for winding a thread of the generic type, in which the changing of the thread winding and the loading of a winding tube is carried out together in a change position of the winding spindle.

The solution of the problem is achieved by a device for winding a thread, characterized in that the storage table is arranged in the machine frame immediately before the winding spindle held in the change position, and can be guided by a pivoting movement from the removal position to the parking position, wherein the thread winding in the Parking position of the tray table outside an imaginary axis extension of the held in the change position winding spindle is arranged. Advantageous developments of the invention are defined by the features and feature combinations of the respective subclaims.

The invention has the particular advantage that the doffing device takes over the thread winding of the winding spindle with simple movements and short distances and thereby immediately freed the operation of the winding spindle for attaching a winding tube. It is irrelevant here whether the winding spindle carries only one thread winding or several thread windings. The thread wrap is deported from the winding spindle by separate means not associated with the tray table. The storage table can thus be guided with a simple pivoting movement from the removal position immediately in front of the winding spindle in a lower parking position. In the parking position of the tray table, the thread winding can be cached without the winding process is disturbed. In that regard, the final removal of the thread winding can be done shortly before the end of the winding time of the subsequent thread winding, so that a relatively long time corridor is created for the removal of the filament winding.

To execute the pivoting movement of the storage table is preferably connected on one side via a pivot axis with the machine frame, wherein the pivotal movement of the delivery table is transverse to the winding spindle via a pivot actuator controllable. Thus, at the initiation of a yarn change at the same time next to the drive of the spindle carrier to guide the winding spindle with the finished wound filament winding in the change position, simultaneously activate the Schwenk- actuator, so that the positioning of the tray and the positioning of the winding spindle in the change position simultaneously he follows. Thus, further time losses can be avoided for positioning the tray table.

Furthermore, according to an advantageous development of the invention, it is proposed to form the storage table by a trough-shaped holding plate which, on a free longitudinal side, extends substantially parallel to the winding spindle.

- A - having the leg, which includes an opening angle in the range of <180 ° with a flat bottom and extends in the removal position over a center of a turntable formed as a spindle carrier. Thus, a safe takeover of the thread winding is possible even with smaller position differences between the tray and the winding spindle. In addition, unfinished thread wraps, which must be replaced prematurely in the event of a yarn breakage, can be safely taken up and guided on the storage table.

The development of the invention, in which the trough-shaped holding plate is designed to be open on both end faces of the thread winding and in which in the park position the holding plate is assigned a push-off device for pushing off the yarn package, is particularly advantageous to automate the removal of the yarn package. In this case, the push-off device can be controlled, for example via a higher-level control device, at a point in time in which a removal of the thread winding is desired. However, it is also possible to combine the control of the removal device directly with the control device of the winding device, so that when reaching the parking position of the thread winding is immediately deported from the retaining plate.

In order to attach a new winding tube to the winding spindle immediately after the change of the thread winding, the development of the invention is particularly advantageous in which a pivotable sleeve mandrel is held opposite to the winding spindles on a support of the machine frame and that the sleeve mandrel between a magazine position for takeover a winding tube and a spindle position for the transfer of the winding tube can be guided, wherein the sleeve mandrel is arranged in the spindle position in alignment with the winding spindle held in the change position. The integration of the pivoting sleeve mandrel in the machine frame guarantees alignment of the winding spindle and the sleeve mandrel without major misalignments. Thus, an automated transfer of the winding tube is possible without the risk of interference. The removal and transfer of the winding tube from a sleeve magazine can be formed particularly advantageous in that the sleeve mandrel is vertically aligned in the magazine position and is associated with a free end in the sleeve magazine for receiving the winding tube. Thus, by gravity, the winding tube can be positioned on the circumference of the sleeve mandrel.

For this purpose, the sleeve magazine is preferably formed above the winding spindles in front of the winding machine, the sleeve magazine having a guide tube for transferring the winding tube, which faces the sleeve tube in an open end. To transfer the winding tube to the winding spindle of the sleeve mandrel is preferably equipped on the circumference with a movable sleeve slide, which is controlled and activated by a separate actuator.

For the removal of the thread winding from the winding spindles obtained in the change position in particular a winding thruster has been awarded, which is arranged on the machine frame such that each held in the change position winding spindle is operable.

In the event that the inventive device for winding only a single thread is used, it is necessary to arrange in a spin line in several such devices for winding the plurality of threads side by side. It is particularly advantageous if, for the removal of the plurality of thread windings, a bobbin transport device is assigned, so that the deported from the tray table filament can be directly absorbed and removed.

However, the device according to the invention is basically also suitable for winding several threads parallel to one another on a winding spindle, so that each of the winding spindles holds a plurality of thread windings next to one another. The device according to the invention will be explained in more detail below with reference to some exemplary embodiments with reference to the attached FIGURE.

They show:

Fig. 1 shows schematically a side view of an embodiment of the device according to the invention

FIG. 2 schematically shows a front view of the embodiment according to FIG. 1 FIG. 3 and FIG. 4 shows schematically the front view of the embodiment according to FIG. 1 in several operating situations

Fig. 5 shows schematically the side view of the embodiment of FIG. 1 at a sleeve transfer

In Fig. 1 and Fig. 2, a first embodiment of the device according to the invention is shown schematically in several views. Fig. 1 shows the device in a side view and Fig. 2 shows the device in a front view. Unless an explicit reference is made to one of the figures, the following description applies to both figures.

The embodiment of the device according to the invention for winding a thread has a multi-part machine frame 1 for receiving the individual modules. The machine frame 1 has a stand 1.2, on which the uprising support in the form of a longitudinal member 1.3 and a cross member 1.4 are arranged. On the cross member 1.4, a spindle carrier 2 is held in the form of a rotatably mounted turntable. The spindle carrier 2 is coupled to a drive, not shown here. On the spindle carrier 2, two rotatably mounted winding spindles 3.1 and 3.2 are arranged projecting. The winding spindle 3.1 and 3.2 are on a bearing side, each with a not shown here Drive coupled. At the free projecting end of the winding spindle 3.1 and 3.2 each have a winding tube 18 is tensioned, which serves to receive a yarn winding 8.1. The winding spindles 3.1 and 3.2 are guided by the spindle carrier 2 alternately in an operating position and a change position. In Fig. 1 and Fig. 2, the winding spindle 3.1 is in an operating position and the winding spindle 3.2 in a change position.

In the operating position, the winding spindle 3.1 cooperates with a pressure roller 4 and a traversing device 6 to wind a yarn 7 to a yarn winding 8.1. The pressure roller 4 is held for this purpose on a roller carrier 5, which is preferably held pivotably on the cross member 1.4.

Below the spindle carrier 2, a winding thrust device 20 is arranged on the cross member 1.4, which is associated with a winding fork 20.1 of the winding spindle held in the alternating position in this case of the winding spindle 3.2. The push fork 20.1 of the winding thruster 20 is activated via a push cylinder 20.2 in order to deport a finished wound filament winding 8.2 from the circumference of the winding spindle 3.2. For this purpose, the push fork 20.1 parallel to the winding spindle 3.2 and forth.

In a region in front of the projecting ends of the winding spindle 3.1 and 3.2, a doffer 9 is held in the machine frame 1. The Doffereinrich- device 9 has a storage table 10 which is connected via a pivot axis 12 with the side rail 1.3 of the machine frame 1. The storage table 10 is for this purpose formed as a trough-shaped holding plate 11. The holding plate 11 is U-shaped and has a free leg 11.1, a flat bottom 11.2 and a coupled to the pivot axis 12 leg 11.3. The free leg 11.1 and the flat bottom 11.2 enclose an angle which is formed in the range between 90 ° and 180 °. The angle is indicated in Fig. 2 by the reference numeral α. On an underside of the retaining plate 11 engages a pivoting actuator 13, through which the retaining plate 11 between an upper acceptance position and a lower parking position is verschenkbar. In Fig. 1 and Fig. 2, the holding plate 11 is arranged in the parking position below in front of the winding spindle 3.2. In the removal position of the retaining plate 11, the limb 11.1 protrudes toward the side of the device opposite the pivot axis 12 such that at least the angular range of the spindle support 2 is covered beyond the center of the spindle support.

In the parking position, the holding plate 11 cooperates with a push-off device 14. The push-off device 14 has a punch 14.1 and a push actuator 14.2. Here, the punch 14.1 cooperates with an end face of the held on the holding plate 11 thread winding 8.2. The holding plate 11 open to both end faces, so that by activating the push-off device 14, a held on the holding plate 11 filament winding can be deported.

At one end of the stator 1.2 a mandrel carrier 1.1 is arranged, on which a pivotable sleeve mandrel 15 is held at a distance from the free ends of the winding spindles 3.1 and 3.2. The distance of the mandrel carrier 1.1 in the machine frame 1 is formed such that the sleeve mandrel 11 is held freely verschenkbar between a hori- zontalen spindle position and a vertical magazine position. Here, the sleeve mandrel 15 is held in the spindle position with a short distance in alignment with the winding spindle held in the change position 3.2. The sleeve mandrel 15 is held by a pivot bearing 16 on the mandrel carrier 1, wherein here not shown pivot drive controls the movement of the sleeve mandrel 15 between the spindle position of the magazine position.

In the magazine position, the free end of the sleeve mandrel 15 is associated with a guide tube 19, which forms the outlet of a sleeve magazine 17. The sleeve magazine 17 is arranged above the machine frame 1. Through the sleeve magazine 17, winding tubes 18 are kept ready, which are connected via the opening of the guide tube 19 to the sleeve mandrel 15 located in the magazine position. are feasible. For this purpose, a sleeve distributor 22 is shown by way of example, which, when activated, supplies a winding tube 18 to the guide tube 19.

On the sleeve mandrel 15, a sleeve slide 21 is formed, which is formed with a projecting beyond the circumference of the sleeve mandrel 15 collar and in the axial direction of the sleeve mandrel 15 reciprocally guided. The sleeve slide 21 is associated with a drive which can be activated for insertion in the winding tube 18 on a winding spindle 3.2.

To explain the function of the device according to the invention shown in FIGS. 1 and 2, reference is made to FIGS. 3 and 4 in addition to FIGS. FIG. 3 shows, as already shown in FIG. 2, the operating situation, with the mandrel carrier 1.1 not being shown with the sleeve mandrel 15 for clarity.

For winding a yarn 7, the yarn is supplied continuously and wound, for example, on the winding spindle 3.1 to form a thread winding 8.1. In this case, the yarn 7 is guided back and forth by the traversing device 6 within a traverse stroke, and then subsequently applied over the circumference of the pressure roller 4 to the filament winding 8.1. The thread winding 8.1 is wound on a winding tube 18, which is firmly clamped on the winding spindle 3.2. The winding spindle 3.1 is driven in such a way that the yarn 7 is wound at a substantially constant peripheral speed of the yarn winding 8.1. During the winding of the thread 7, the diameter of the thread winding 8.1 is constantly increasing. In order to allow the increase of the thread winding 8.1, the spindle carrier 2 is driven, so that the winding spindle 3.1 moves out of the operating position. The direction of movement of the spindle carrier is indicated by an arrow. Here, the drive of the spindle carrier 2 is controlled such that a permanent contact between the pressure roller 4 and the thread winding 8.1 remains. For this purpose, the pressure roller 4 is preferably held on a pivotable roller carrier 5. In the event that the thread winding 8.1 has reached its final diameter, a yarn change is initiated. The spindle carrier 2 is activated for rotation, so that the winding spindle passes with the finished wound filament winding in a change position. In this case, the opposite winding spindle is pivoted into the operating position, whereby the thread still moving to the finished wound thread winding is caught and severed, so that a winding winding can begin at the winding spindle pivoted into the operating position.

1, 2 and 3, the operating situation is shown after a change of thread, so that held in the change position winding spindles 3.2 holds a finished wound filament winding 8.2. Upon reaching the change position of the pivot actuator 13 is activated to actuate the tray table 10 at the same time. The storage table 10 is guided to the removal position. This situation can be seen in particular in Fig. 3. The retaining plate 11 lies with its bottom 11.2 at a height which is slightly lower than the peripheral surface of the thread winding 8.2 on the winding spindle 3.2. Now the winding thrust device 20 is activated so that the push fork 20.1 shifts the thread winding 8.2 from the winding spindle 2 and the thread winding 8.2 slides onto the holding plate 11. After the push fork 20.1 has reached an end position, a control signal is generated to the pivoting actuator 13 of the deposition table 10 to press. The Schwenkaktor 13 leads the tray 10 from the removal position in the lower parking position. This situation is shown in FIG.

As can be seen from the illustration in FIG. 4, a distance is formed between an imaginary axis extension of the winding spindle 3.2 and the circumference of the thread winding 8.2 in the parking position, so that an operation of the winding spindle 3.2 is free for attaching a winding tube.

In order to transfer the thread winding 8.2 to a conveyor belt (not shown here in detail), the push-off device 14 is activated after the parking position has been reached, so that the punch 14.1, driven by the push actuator 14, drives the flap. denwickel 8.2 departs from the support plate 11. The filament winding 8.2 can thus be transported fully automated without manual support to the reels. The delivery table 10 is preferably held in the parking position after delivery of the yarn package 8.2, as shown in Figures 1 and 2.

After the thread winding 8.2 has been removed from the winding spindle 3.2 and guided into the parking position, the sleeve mandrel 15 is guided from its magazine position into the spindle position. This situation is shown in FIG. Previously, a winding tube 18 was fed from the sleeve magazine 17 via the guide tube 19 to the sleeve mandrel 15. Once the sleeve mandrel 15 has reached its Spulspindelstellung aligned with the winding spindle 3.2, the sleeve valve 21 is activated so that the winding tube 18 is transferred from the sleeve mandrel 15 to the winding spindle 3.2. After transfer of the winding tube 18 of the sleeve mandrel 15 is returned to its magazine position. The winding spindle 3.2 is thus ready for winding a new thread winding. The deportation of the yarn winding 8.2 and the sliding of the winding tube 18 is performed in the change position of the winding spindle 3.2. During this time, when the winding spindle 3.1 is in the operating position, the deflection movement for winding the thread winding 3.1 is carried out for a short time via the movable pressure roller 4. However, this is very limited, so that short change times must be observed.

However, it is also possible in principle to carry out the thread winding 8.2 from the winding spindle 3.2 and attaching the winding tube 18 to the winding spindle 3.2 in two different positions of the spindle carrier.

The embodiment of the device according to the invention shown in FIGS. 1 to 5 is particularly suitable for enabling fully automatic operation during winding and in particular in the production of synthetic threads. In this case, several threads can also be wound simultaneously in parallel on a winding spindle to thread windings. LIST OF REFERENCE NUMBERS

1 machine frame 1.1 mandrel support 1.2 stand

1.3 side member

1.4 cross member

2 spindle carrier, turntable 3.1, 3.2 winding spindle 4 pressure roller

5 roll carriers

6 traversing device

7 Thread 8.1, 8.2 Thread winding 9 Doffereinrichtung

10 storage table

11 retaining plate

11.1 thighs

11.2 Floor 11.3 Legs

12 pivot axis

13 Swinging actuator

14 push-off device 14.1 punch 14.2 push actuator

15 sleeve thorn

16 pivot bearings

17 sleeve magazine

18 winding tube 19 guide tube

20 winding thruster 20.1 push fork

20.2 push cylinder

21 sleeve slide

22 sleeve distributors

Claims

claims

1. A device for winding a thread with two driven winding spindles (3.1, 3.2) for receiving at least one filament winding (8.1), with a in a machine frame (1) movably arranged spindle carrier

(2), which keeps the winding spindles (3.1, 3.2) projecting and which leads the winding spindles (3.1, 3.2) alternately into an operating position for winding the thread and a change position for removal of the thread winding (8.2), and with a Doffereinrichtung (9) for changing the thread winding (8.2), which is associated with the held in the change position winding spindle (3.1, 3.2) and which has a in the machine frame (1) movably arranged tray table (10), wherein the tray table (10) for taking over the thread winding (8.2 ) is feasible between a removal position and a parking position, characterized in that the storage table (10) in the machine frame (1) immediately before the winding spindle held in the change position (3.1, 3.2) is arranged and by a pivoting movement from the removal position to the parking position is feasible, the thread winding (8.2) in the parking position of the tray table (10) outside an imaginary axis extension of the in the Wechselpos Ision held winding spindle (3.1, 3.2) is arranged.

2. Apparatus according to claim 1, characterized in that the storage table (11) on one side via a pivot axis (12) with the machine frame (1.3) is connected, wherein the pivotal movement of the delivery table (10) transversely to the winding spindle (3.2) via a Schwenkaktor ( 12) is controllable.

3. Apparatus according to claim 1 or 2, characterized in that the storage table (10) is formed by a trough-shaped holding plate (11) which has on a free longitudinal side a substantially parallel to the winding spindle (3.2) extending leg (11.1) having a flat bottom (11.2) an opening angle in the range <180 ° includes.

4. The device according to claim 3, characterized in that the holding plate (11) is open to both end faces of the thread winding (8.2), and that the holding plate (1 1) in the parking position a Abschie- device (14) for pushing off the yarn package (8.2) is assigned.

5. Device according to one of claims 1 to 4, characterized in that a pivotable sleeve mandrel (15) opposite to the winding spindles (3.1, 3.2) on a mandrel carrier (1.1) of the machine frame (1) is held and that the sleeve mandrel (15) between a magazine position for taking over a winding tube (18) and a spindle position for transferring the winding tube (18) can be guided, wherein the sleeve mandrel (15) is arranged in the spindle position in alignment with the winding spindle (3.2) held in the change position.

6. The device according to claim 5, characterized in that the sleeve mandrel (15) is aligned vertically in the magazine position and with a free end a sleeve magazine (17) for receiving the winding tube

(18) is assigned.

7. Apparatus according to claim 6, characterized in that the sleeve magazine (17) above the winding spindle (3.1, 3.2) is formed, wherein the sleeve mandrel (15) in the magazine position below a guide tube (19) of the sleeve magazine (17) is positionable.

8. Device according to one of claims 5 to 7, characterized in that the sleeve mandrel (15) on the periphery of a movable sleeve slide (21), which is activated via an actuator for pushing the winding tubes (18) of the sleeve mandrel.

9. Device according to one of claims 1 to 8, characterized in that the winding spindles (3.1, 3.2) in the change position is associated with a winding thrust device (20) through which the filament winding (8.2) at the circumference of the winding spindle (3.2, 3.1 ) is movable.

10. Device according to one of claims 1 to 9, characterized in that a Spulentransporteinrichtung is provided, through which the deported from the tray table thread winding are taken and transported away.