WO2019025262A1

WO2019025262A1 - Apparatus for winding up a thread to form packages

Info

Publication number: WO2019025262A1
Application number: PCT/EP2018/070191
Authority: WO
Inventors: Peter Steinke; Gerd Zimmermann
Original assignee: Oerlikon Textile Gmbh & Co. Kg
Priority date: 2017-07-29
Filing date: 2018-07-25
Publication date: 2019-02-07
Also published as: DE102017007242A1; DE112018003876A5; CN111032546B; CN111032546A

Abstract

The invention relates to an apparatus for winding up a thread (4) to form packages (5), having two drivable winding spindles (3.1, 3.2) for receiving at least one winding tube (7) each. The winding spindles (3.1, 3.2) are held on a package turret (2) mounted in a rotatable manner in a machine frame (1) and can be passed alternately into a winding region for winding the thread (4) and into a changeover region for removing fully wound packages (5). In the winding region, the winding spindles (3.1, 3.2) cooperate with a traversing device (10) for carrying out a first traversing movement for winding the thread (4). A second, superposed traversing movement for winding the thread (4) in a relative manner between the traversing device (10) and one of the winding spindles (3.1, 3.2) is executed by a linear drive (15). To this end, the winding spindles (3.1, 3.2) on the package turret (2) are configured according to the invention to be axially movable such that each of the winding spindles (3.1, 3.2) is able to be coupled alternately in the winding region for carrying out the second traversing movement with the linear drive (15).

Description

Device for winding a thread into coils

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

A generic device for winding a thread into coils is known from US 8 128 017 B2.

The known device for winding a thread is used in particular in the production of glass threads. In this case, the threads are removed immediately during winding of a spinneret. In order for the extrusion process during spinning of the thread to be as continuous as possible, the known device has two winding spindles, which are held by a winding turret. The winding turret is rotatably mounted in a machine frame and guides the winding spindles alternately into a winding area and a changing area. In the winding area, one or more threads are wound on the winding spindle simultaneously into coils. In the change region, the finished wound coils can be removed from the winding spindle and replaced by winding tubes for receiving a new coil.

To form the coils, it is necessary that the thread is guided over a predetermined coil width back and forth. For this purpose, the winding spindle arranged in the winding spindle is associated with a traversing device which guides the yarn back and forth in the axial direction of the spool. In order for the deflection produced on the thread to be kept possible within a relatively narrow range, a first traversing movement is generated on the thread by the traversing device. However, this traversing movement is smaller in its stroke length than the predetermined coil width. To be able to lay the thread over the entire width of the coil, the winding spindle is on the winding turret by a linear drive out and forth, so that the winding spindle performs a second traversing movement. Each of the winding spindles is thus coupled to a separate linear drive which axially displaces the winding spindle in the winding area. The winding spindles are driven by separate spool drives at a substantially constant peripheral speed. So far it is necessary that the traversing mechanism must cooperate with each of the linear drives for moving the winding spindle after each bobbin change. For this purpose, a renewed synchronization of the two traversing movements is required in each case before each start of winding.

In the prior art, however, devices for winding a thread to coils are known in which the first and the second traversing movement are performed by a traversing device. Thus, US Pat. No. 7,866,590 B2 discloses a device for winding a thread into packages, in which the traversing device is formed by a plurality of flyer wings arranged on a flyer shaft. By rotation of the flyer shaft, the yarn is slidably guided on the flyer wings in a reciprocating motion, so that thus a first traversing movement is performed. In order to obtain a required for the coil width storage width of the thread, the flyer shaft is guided axially back and forth by a linear drive. This eliminates a constant Neusynchronisiemng the two traversing movements, since the rotary drive of the flyer shaft and the linear drive of the flyer shaft can be operated synchronously. In this case, however, the axial displacement of the flyer shaft causes the tapered thread receives a greater deflection. In particular, in the production of glass fibers, this may result in slight titer fluctuations when the glass threads are removed from the spinnerets. It is therefore an object of the invention to develop a device for winding a thread to coils of the generic type such that on the one hand larger deflections are avoided by the traversing movement of the threads and on the other hand no permanent readjustments of traversing movements are required.

This object is achieved in that the winding spindles are formed on the Spulrevolver so axially displaceable that each of the winding spindles can be coupled alternately in the Aufspulbereich for performing the second traversing movement with the linear drive.

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 linear drive can be formed stationary and can be combined directly with traversing device. This can also minimize the control effort when winding the thread. The distribution of the traversing movement between the traversing device and the winding spindle remains advantageous, so that the deflection of the thread by the traversing device is limited to a minimum stroke. Since the second traversing movement can be performed by one and the same linear drive despite changing winding spindle, the coils can be realized with substantially uniform Fadenablagen and crossing angles. The coils thus have on each winding spindle essentially an identical package density.

In order to obtain a connection between the winding spindles and the linear drive for performing the second traversing movement with as few tools as possible, the development of the invention is preferably carried out in which the linear drive has a coupling member and at which is associated with each of the winding spindles a separate connection member, wherein the connecting member with the coupling member can be coupled and / or released by a rotational movement of the winding turret. Thus, the required during a bobbin change rotational movement of the winding turret can be used directly to connect the winding spindle with the linear drive.

In this case, in particular, the embodiment has proved successful, in which the coupling member has a track portion of a link and in which the connecting member has a sliding block which can be guided in the gate. Thus, there is even the possibility that in the winding area, the winding spindle remains feasible despite the axial displacement in a predetermined angular range through the winding turret. The angular range of the path section of the slide determines the rotation angle range of the winding turret, in which a connection between the winding spindle and the linear drive is ensured.

In order for the winding spindles can be coupled alternately with the linear drive by simple rotational movements, it is further provided that per nut the nut is held towering by a holder on the circumference of the winding spindle. This allows the sliding block to slide into the scenery. In this case, the path section of the slide is aligned parallel to the circumferential direction of the winding turret, so that each of the winding spindles can be coupled with the linear drive in a simple manner from a predetermined position when changing from the change region into the winding region.

The web section of the link extends over a range of a rotation angle of the winding turret, which covers the positions of the winding spindles within the Aufspulbereichs. For carrying out a uniform second traversing movement through the winding spindles, the linear drive is preferably designed as a spindle drive, in which a spindle can be driven by an electric motor with an alternating direction of rotation. Thus, winding spindles with long projecting chucks for winding a plurality of threads can also perform a uniform traversing movement.

In order to shield the drives from the work area for winding the threads, it is further provided that the linear drive, together with two winding drives of the winding spindles, is arranged on a drive side of the winding turret. Thus, the machine frame can be advantageously used for shielding.

To carry out the first traversing movement on the thread, the traversing device is preferably formed by a driven flyer shaft with at least one flyer vane. This allows the thread by a relative sliding movement without a firm hold relatively gently back and forth. In particular, for the formation of special Spulformen the development of the invention is provided, in which a second linear drive is provided, through which the flyer shaft in the axial direction of the flyer shaft is displaceable. This can be performed superimposed a third traversing movement. In addition, it is possible to position the thread in a range which lies outside the winding area of the bobbin by the second linear drive, for example to wind a thread reserve Further advantages and details of the device according to the invention for winding a thread are explained in more detail below using an exemplary embodiment with reference to the attached figures. Show it:

1 shows schematically a front view of an embodiment of the device according to the invention for winding a thread. FIG. 2 schematically shows a side view of the exemplary embodiment from FIG. 1.

FIG. 3 schematically shows a rear view of the exemplary embodiment from FIG. 1.

FIG. 4 schematically shows a detail of the illustration from FIG. 2 during the winding process.

In the figures 1, 2 and 3, an embodiment of the inventive device for winding a yarn into coils in several views is shown. FIG. 1 schematically shows a front view, FIG. 2 shows a side view and FIG. 3 shows a rear view. Unless a detailed reference is made to one of the figures, the following description applies to all figures.

The embodiment has a machine frame 1, in which a spool revolver 2 is rotatably mounted. The bobbin turret 2 is coupled to a rotary drive, not shown here. At the bobbin revolver 2, two winding spindles 3.1 and 3.2 are held offset by 180 ° to each other. The winding spindles 3.1 and 3.2 can be adjusted by the spool turret ver 2 alternately lead into a winding area for winding a thread and a change area for removing the finished wound coils. As can be seen from the illustration in FIG. 2, the winding spindles 3.1 and 3.2 each have a projecting chuck 6 on an operating side of the machine frame 1. The chuck 6 has here not shown clamping means in order to clamp a winding tube 7 on the circumference of the chuck 6. In the illustrated embodiment, each winding spindle 3.1 and 3.2 thus carries two winding tubes 7 which are plugged one behind the other at its chip chuck 6. In this way two threads 4 can be wound parallel to coils 5 in parallel. In the operating situation illustrated in FIG. 2, the winding spindle 3.1 is located on the winding turret 2 in the winding area and the winding spindle 3.2 in the change area.

As is apparent from the illustration in Figure 2, the winding spindles 3.1 and 3.2 are each assigned a winding drive 20.1 and 20.2 on a drive side of the machine frame. Thus, the winding spindle 3.1 is driven by the reel drive 20.1 and the winding spindle 3.2 by the winding drive 20.2.

The winding spindles 3.1 and 3.2 are axially displaceably formed on the spool revolver 2, on the function of which further explanations will be given below.

As can be seen from the illustrations in FIGS. 1 and 2, the winding spindle 3.1 in the winding area is assigned a traversing device 10. The traversing device 10 has a flyer shaft 1 1 projecting substantially parallel to the chuck 6. On the flyer shaft 1 1, two flyer wings 12.1 and 12.2 are arranged per winding position. The flyer shaft 1 1 is on the drive side of the machine frame 1, a shaft motor 21 assigned. The flyer wings 12.1 and 12.2 each have a shaped guide bracket which, as a wire-like structure, guides the thread 4 in a sliding manner. The guide bracket of the flyer wings 12.1 and 12.2 are held directly on the flyer shaft 1 1

However, it is also possible to hold the guide bracket on wing carrier on the flyer shaft 1 1. The guide bracket of the flyer wings 12.1 and 12.2 can be made of brass or special plastic.

To carry out a first traversing movement, the flyer shaft 1 1 is thus driven to rotate by the shaft motor 21, so that the thread 4 is guided back and forth on the flyers 12.1 and 12.2. In this case, a thread reversal occurs due to the shaping of the flyer wings 12.1 and 12.2. The thereby caused by the flyer wings 12.1 and 12.2 traverse stroke is much smaller than an entire coil width of the wound coils. 5

As is apparent from the illustration in Figure 2, a second superimposed traversing movement is performed on the winding spindle 3.1. For this purpose, the winding spindle 3.1 is coupled to a linear drive 15. The linear drive 15 has for this purpose a coupling member 18 which cooperates with a mounted on the winding spindle 3.1 connecting member 19 such that the connecting member 19 can be coupled to the coupling member 18 by the rotational movement of the coil turret 2. Thus, the winding spindles 3.1 and 3.2 can be coupled alternately with the linear drive 15, the winding spindle 3.2 also has a connection member 19. As a result of the rotational movement of the winding turret 2, the winding spindle 3.1 can thus first be loosened, in order then to connect the winding spindle 3.2 with its connecting member 19 to the coupling element 18 of the linear drive 15. As can be seen in particular from the illustrations in Figures 2 and 3, the coupling member 18 is formed in this embodiment by a link 18.1 and a slide carrier 18.2. The link support 18.2 is guided on a spindle 17 which is driven by an electric motor 16 with changing direction of rotation. The linear drive 15 is thus designed as a spindle drive.

As can be seen in particular from the illustration in FIG. 3, the link 18.1 is formed in a track section 18.3. The link 18.1 and the track section 18.3 extend parallel to the circumferential direction of the bobbin revolver 2 and cover a rotational angle range of the bobbin revolver 2, in which the winding spindle 3.1 or 3.2 stops during the winding of the thread 4 in the winding area.

For coupling the connecting member 19 is formed on the winding spindles 3.1 and 3.2 respectively by a sliding block 19.1, which is held towering on a holder 19.2 fixed to the winding spindle 3.1 or 3.2. The sliding block 19.1 is designed so that by rotation of the bobbin revolver 2 this automatically dips into the slot 18.1 and thus establishes a connection to the spindle drive 15.

As can be seen from the illustrations in FIGS. 1, 2 and 3, a wetting device 13 is held on the machine station 1 above the traversing device 10. The wetting device 13 has two nozzles 14.1 and 14.2, which are held directly above the flyer wings 12.1 and 12.2. The nozzles 14.1 and 14.2 are connected to a formed on the drive side of the machine frame 1 fluid port 23. Thus, can be supplied via the nozzles 14.1 and 14.2 a wetting agent, in particular the sliding friction of the thread 4 on the flyer wings 12.1 and 12.2 influence. In addition, the fluid can be used for cooling the contact areas between the thread 4 and the flyer wings 12.1 and 12.2. In particular, when winding glass fibers, such wetting, which are preferably carried out with water, are particularly advantageous.

As is apparent from the illustrations in Figures 2 and 3, a second linear drive 22 is provided on the drive side, which is coupled to the flyer shaft 1 1. The flyer shaft 1 1 is designed to be axially displaceable in the machine frame 1 and can be displaced by the second linear drive 22 for positioning the thread. The second linear drive 22 is preferably used for storing the thread 4 to a thread reserve outside the winding area of the coil 5. In principle, however, it is also possible to carry out a superimposed third traversing movement with the second linear drive 22 in order to produce special spool forms when the thread 4 is wound on the spool 5.

When winding the thread 4 into a coil 5, the flyer shaft 1 1 is held in a predefined axial position in this exemplary embodiment. To explain the winding process, reference is made below to FIGS. 2 and 4.

A side view of the winding spindle 3.1 held in the winding area is shown schematically in FIG. 2 and FIG. In this embodiment, the winding spindle 3.1 carries at its chuck 6 two winding tubes 7 to wind parallel two threads 4 to 5 coils. For this purpose, the winding spindle 3.1 is coupled to the linear drive 15. In this case, the connecting member 19 is immersed in the slot 18.1 of the coupling member 18 in the form of the sliding block 19.1. The coupling member 18 is guided by the spindle 17 of the spindle drive 15 back and forth. For this purpose, the spindle is 17th driven by the electric motor 16 with changing direction of rotation. At the same time the flyer shaft 1 1 is rotated by the flyer motor 21, so that per winding position of the thread 4 is guided to the flyer strips 12.1 and 12.2 sliding back and forth. Thus, the thread 4 can be guided back and forth over the entire package width of the spool 5. In FIGS. 2 and 4, the situation in which a yarn deposit takes place at the end of the coil 5 is shown.

FIG. 2 shows the situation in which the thread is wound on the right-hand end of the coil 5. In this situation, the winding spindle 3.1 is retracted on the winding turret 2. The thread 4 is guided at the right turning point of the traversing wings 12.1 and 12.2.

FIG. 4 shows the filing of the thread at the left-hand coil end of the spool 5. Here, the winding spindle 3.1 is extended by the spindle drive 15 with a corresponding to the coil width thrust path. The thread 4 is guided on the flyer wings 12.1 and 12.2 at the left turning point. Thus, the thread 4 is continuously wound by superposition of a first traversing motion through the flyer shaft 1 1 and the flyer wings 12.1 and 12.2 with a second traversing movement through the winding spindle 3.1 to the coil 5.

As soon as a predetermined diameter of the coil 5 is reached, a bobbin change takes place. For this purpose, the winding spindle 3.1 assumes a predetermined position, for example as shown in FIG. 2, in the retracted position. In this position, the linear drive 15 is deactivated and a rotary drive of the bobbin revolver 2 is activated. Thus, the winding spindle 3.1 can be released from the linear drive 15. At the same time, the winding spindle 3.2 with the sliding block 19.1 of the connecting element 19 is inserted into the slot 18 of the coupling elements 18. The separation and winding of the threads 4 to the new winding tubes 7 is performed by other auxiliary means not shown here. Now the new winding cycle on the winding spindle 3.2 can start with a superimposed second traversing movement.

LIST OF REFERENCE NUMBERS

1 machine frame

2 bobbin revolvers

3.1, 3.2 winding spindle

4 threads

5 coil

6 chucks

7 winding tube

10 traversing device

1 1 flyer wave

12.1, 12.2 Flyer wings

13 wetting

14.1, 14.2 nozzle

15 linear drive

16 electric motor

17 spindle

18 coupling link

18.1 scenery

18.2 Kulissenträger

18.3 track section

19 connecting link

19.1 Slot nut

19.2 holder

20.1, 20.2 winding drive

21 shaft motor

22 second linear drive

23 fluid connection

Claims

claims

Device for winding a thread (4) into coils (5) with two driving spindles (3.1, 3.2) for accommodating at least one winding tube (7) each, with a winding turret (2) rotatably mounted in a machine frame (1) the winding spindle (3.1, 3.2) are held and by which the winding spindles (3.1, 3.2) can be guided alternately into a winding area for winding the thread (4) and in a changing area for taking off finished wound coils (5), with a traversing device (10 ) for carrying out a first traversing movement for winding the thread (4) and with a linear drive (15) for performing a second traversing movement for winding the thread (4) relative between the traversing device (10) and one of the winding spindles (3.1, 3.2) characterized in that the winding spindles (3.1, 3.2) on the winding turret (2) are designed to be axially displaceable such that each of the winding spindles (3.1, 3.2) alternately in the winding area for performing d he second traversing movement with the linear drive (15) can be coupled.

Apparatus according to claim 1, characterized in that the linear drive (15) has a coupling member (18) and that the winding spindles (3.1, 3.2) each have a separate connection member (19) is associated, which by a rotational movement of the winding turret (2) with the Coupling member (18) can be coupled and / or released.

Apparatus according to claim 2, characterized in that the coupling member (18) has a track portion (18.3) of a link (18.1) and that connecting member (19) has a sliding block (19.1), which in the link (18.1) can be guided.

Apparatus according to claim 3, characterized in that the sliding block (19.1) is held towering by a holder (19.2) on the circumference of the winding spindle (3.1, 3.2).

Apparatus according to claim 3 or 4, characterized in that the web section (18.3) of the link (18.1) parallel to the circumferential direction (2) of the winding turret (2) is aligned.

Device according to one of claims 3 to 5, characterized in that the web section (18.3) of the link (18.1) extends over a range of a rotation angle of the winding turret (2), which the position of the winding spindles (3.1, 3.2) during the Wickicke of Thread (4) occupies.

Device according to one of claims 1 to 6, characterized in that the linear drive (15) is designed as a spindle drive, wherein a spindle (17) by an electric motor (16) is driven with alternating direction of rotation.

Device according to one of claims 1 to 7, characterized in that the linear drive (15) together with two Spulantrieben (20.1, 20.2) of the winding spindles (3.1, 3.2) on a drive side of the Spulrevolvers (2) are arranged.

Device according to one of claims 1 to 8, characterized in that the traversing device (10) by a driven flyer shaft (1 1) with at least one flyer wings (12.1, 12.2) is formed.

10. The device according to claim 9, characterized in that a second linear drive (22) is provided, through which the flyer shaft (1 1) in the axial direction of the flyer shaft (1 1) is displaceable.