EP1982943B1 - Spooling device for a workstation of a textile machine for creating cross-wound spools - Google Patents

Description

The invention relates to a winding device for a workstation of a cross-wound textile machine according to the preamble of claim 1.

In order to produce a textile bobbin, it is known that it is necessary for the textile bobbin in question to be rotated on the one hand around its bobbin axis and, on the other hand, for the thread running onto the bobbin to be traversed along the bobbin axis.
By relatively fast traversing of the thread, a so-called Kreuzbewicklung can be created.
In such cheeses, which are distinguished not only by a relatively stable bobbin, but also by a good flow behavior, not only in terms of their winding type, such as "wild winding", "precision winding" or "step precision winding", but also with respect to different cheeses formats.
For example, a distinction is made between cylindrical and conical coils and between coils of different widths. In the context of textile machines producing cross-wound bobbins, for example, 4 ", 5", 6 ", etc. wide bobbins are common Depending on the cross bobbin format, different bobbin formats are used, which differ, inter alia, also with respect to their length.

In particular, in the production of cheeses with the winding type "wild winding" winding devices are widely used, which operate with so-called thread guide drums.

Such thread guide drums traverse the incoming thread during the winding process and at the same time drive the cross-wound bobbin via frictional engagement.

Furthermore, also in connection with the production of cheeses with precision or step precision winding, winding devices are known in which the drive for the cheese and the drive for the Fadenchangiereinrichtung are separated.
That is, in the manufacture of a cross winding in the winding type precision or step precision winding, the cheese is driven by a reel drive, while the incoming yarn is laid by an additional, separately driven Fadenchangiereinrichtung.

Devices which have a thread guide which can be displaced parallel to the axis of rotation of the cross-wound bobbin and thread-changing devices which operate with a so-called finger thread guide have proven to be very suitable for a fast and positionally precise threading.
That is, Fadenchangiereinrichtungen having either a yarn guide, which is connected for example via a traction means with a reversible single drive or Fadenchangiereinrichtungen having a finger-like thread laying lever, which is defined about a substantially perpendicular to the cheese axis arranged axis pivotally mounted and defined over a certain angular range a reversible electromagnetic drive is connected.

In the DE 198 58 548 A1 For example, such a winding device for a job of a cheeses described textile machine, in which the Fadenchangiereinrichtung is designed as a finger thread guide. The single electromagnetic drive of the finger thread guide is also connected to a control device, the angle and the time depending on the current strength and the current direction according to a predetermined program so pretending that adjusts the Traversierbreite the finger thread guide a certain installation angle of the thread.
With winding devices, as by the DE 198 58 548 A1 Although high traverse speeds are known to be realized during the winding process, it is disadvantageous in such winding devices that they are generally designed for a specific cross-coil format, for example for 6 "wide coils.
That is, with these known winding devices only cross-wound bobbins can be spooled with a certain width.

In the EP 1 126 058 A2 Coilers are described, the Fadenchangiereinrichtungen are designed so that they can be reacted very universally to a wide variety of requirements of a winding device.
That is, with such winding devices, it is in principle possible to wind cross-wound bobbins with different formats and widths, but even with these winder devices when changing the sleeve format, especially when sleeves are to be used with a different length, always a relatively complex adaptation of Winding device, usually a change of the coil frame, necessary.

Also, winding devices that work with a thread guide drum, with respect to the winding of different width cheeses, especially if it is also the case format to be changed, only partially suitable.

In a change of the sleeve size, a change of the coil frame is also necessary in such winder usually in addition to a change of the thread guide drum.

In the DE 42 20 188 A1 For example, a winding device is described whose yarn guide drum can be limited to a shortened coil width by blocking certain areas of the yarn guide groove.
To support this stroke limitation in the thread laying is also a special traversing device can be positioned in the region of a arranged in front of the thread guide drum thread guide in this known winding device. With the winding device according to DE 42 20 188 A1 Although relatively small cross-wound bobbins of different widths can be produced, in the case of a change in the sleeve format, however, the usual, complex retooling work in the region of the creel is also required here.

Furthermore, by the DE 36 28 735 A1 Winding devices are known which each have a drive in the region of the spool axis of the cross-wound bobbin, by means of which the cross-wound bobbin can be driven directly via the cheese bobbin case and thereby friction-entrains a pressure roller.
The traversing of the running thread is carried out in these winding devices in each case by a spaced apart from the cheese, single motor driven yarn guide drum. In the area of the thread guide drum, a stroke limiting device mounted axially displaceably in the direction of the spool axis is also arranged, by means of which the winding width of the cross-wound bobbin held in the bobbin frame and the position of the traversing triangle of the thread can be adjusted during emergence onto the cross-wound bobbin.

That is, in this known Fadenchangiereinrichtung is limited by certain positioning of so-called Umwerferstifte the yarn path to certain groove sections of the yarn guide drum.

A disadvantage of this known device, however, is that such a thread switching device is not suitable due to their Umwerferstifte for high traverse speeds. Moreover, in the DE 36 28 735 A1 nowhere described how to proceed when changing the sleeve format.
It is therefore to be assumed that even with this known winding device when changing the sleeve format, a corresponding change of the coil frame is required.

A winding device according to the preamble of claim 1 is also known from DE 199 08 093 A1 known.

Based on the aforementioned prior art, the present invention seeks to develop a winding device, which makes it possible to wind either different cross coil formats.
In particular, the hitherto necessary, costly conversion measures in the region of the coil frame are to be minimized when changing the format of the cheese coil used.

This object is achieved by a winding device, as described in claim 1.

Advantageous embodiments of the winding device according to the invention are the subject of the dependent claims.

The winding device according to the invention, which has a creel, which is so easily modified by equipping with adapters of different lengths that Cheese bobbins different length and different sleeve size between the coil frame arms of the creel can be fixed, has the advantage that in case of need the cross-wound bobbin required in a simple way quickly and completely easily in the creel of the work can be fixed and can be wound properly by the Fadenchangiereinrichtung immediately.
That is, in the winding device according to the invention, only a matching adapter needs to be inserted into the bobbin frame when changing the sleeve format, and the thread switching device has to be set to the new cross bobbin format by software. Any further conversion measures, which are usually cost and time consuming, need not be made in the field of winding device.

As set forth in claim 2, the respective adapter is fixed instead of a sleeve receiving plate on one of the coil frame arms of the coil frame.
That is, after loosening a bolt, the rotatably mounted sleeve receiving plate can be removed and replaced by a matching adapter, which in turn is secured by the bolt.

As set forth in claim 3, the adapter is preferably formed as a tubular member and either already equipped with a rotatably mounted end-mounted sleeve receiving plate or the adapter is equipped with the previously removed or with a new sleeve receiving plate.
The sleeve receiving plate of the adapter summarizes in the installed state in one of the end faces of a cheese package, which rests with its opposite end face on a rotatable sleeve receiving plate of the second creel and thereby securely positioned.

The training described in claims 2 and 3 allows, if necessary, a quick and easy replacement of the adapter, so that the downtime of jobs at a change of the sleeve format are very low.

Preferably, the adapter is also, as described in claim 4, each equipped with a matching sleeve receiving plate.
That is, the adapter has a sleeve receiving plate, which is designed specifically for the sleeve format to be fixed and therefore ensures proper retention of the cheese to be produced.

As described in claim 5, it is advantageous to arrange the adapter on the Spulenrahmenarm, which has no spool brake.
In this way, it is ensured that the brake torque applied by the spool brake during braking of the spool brake is transmitted directly to the cheese package without the intervention of an adapter, which increases the risk of additional slippage when the cheese is being slowed down between the sleeve receiving plate of the adapter and the cheese package comes, clearly minimized.

As set forth in claim 6, it is also provided in an advantageous embodiment that the thread-switching device is equipped with a finger thread guide and connected with its drive to a control device of the workstation, preferably the so-called winding station computer.
Such a design ensures that, if necessary, the Fadenchangiereinrichtung each job quickly and easily, according to the positioned in the coil frame and adjusted by means of an adapter Cheese package, set and a cheese can be wound with the desired format.

In a preferred embodiment, each of the numerous jobs of the cheese-producing textile machine, as described in claim 7, a winding device with a motor driven single-motor reel drive roller, which rotates the cheese during the winding process via frictional engagement. Such a single-motor driven bobbin drive roller represents a largely independent of the format of the cheese to be driven, in textile machinery for a long time proven drive means that ensures a safe drive each cheese during the entire winding process.

As set forth in claim 8, the winding device is equipped in an advantageous embodiment with a coil frame, which has, in addition to a pivot axis which is parallel to the axis of rotation of the cheese, a further pivot axis which is arranged orthogonal to the axis of rotation of the package held in the coil cheese.
With such a design, the creel can be used if necessary both for the production of cylindrical cheeses and for the production of conical cheeses, the conical cheeses can have the different, common inclination angle.

The invention will be explained in more detail with reference to an embodiment shown in the drawings.

Fig. 1

in Seitenansicht schematisch eine Arbeitsstelle einer Kreuzspulen herstellenden Textilmaschine, mit einer Spulvorrichtung, die einen Spulenrahmen zur Aufnahme eines Adapters aufweist,

Fig. 2

eine perspektivische Vorderansicht auf die Spulvorrichtung gemäß Fig.1, mit einem an einem Spulenrahmenarm des Spulenrahmens angeordneten Adapter, der eine relativ kurze Kreuzspulenhülse im Spulenrahmen fixiert.

It shows:

Fig. 1

in side view schematically a workstation of a cross-wound textile machine, with a winding device, which has a coil frame for receiving an adapter,

Fig. 2

a front perspective view of the winding device according to Fig.1 with an adapter arranged on a coil frame arm of the coil frame, which fixes a relatively short cheese coil in the coil frame.

In Fig. 1 is a side view schematically a job 2 of a cheese-producing textile machine, in the embodiment, a so-called cross-winding machine 1, shown.
As is known and therefore not explained in more detail, spinning tows 3 produced on ring spinning machines and having relatively little yarn material are rewound to large-volume cheeses 5 on the work stations 2 of such automatic packages 1.
The cheeses 5 are after their completion by means of a (not shown) automatically operating service unit, preferably a cheese changer, handed over to a machine-length cheese package transport means 7 and transported to a machine end side Spulenverladestation or the like.

As a rule, such automatic packages 1 also have a logistics device in the form of a cop and tube transport system 6. In this cop and sleeve transport system 6, the spinning cops 3 or empty tubes run on transport plates 11.
From the cop and sleeve transport system 6 are in the Fig. 1 only the Kopszuführstrecke 24, the reversibly driven storage section 25, one of the leading to the winding units 2 Cross transport lines 26 and the sleeve return path 27 shown.

Each work station 2 of the automatic winder 1 has a control device, a so-called winding station computer 28, which is connected, inter alia, via a bus connection 29 to a central control unit 30 of the automatic package winder 1 and via control lines 15, 35 to the individual drives 14, 33 of the winding device 4.
Furthermore, each of the jobs 2 has various other facilities necessary for the proper operation of the jobs 2.

One of these devices known per se is, for example, the above-mentioned winding device 4.
Such a winding device 4 has inter alia a coil frame 8, which, as in Fig.1 indicated, at least about a pivot axis 12 which is parallel to the axis of rotation of the cheese 5, is movably mounted.
The coil frame 8 can also, what is also basically known and therefore not shown for reasons of clarity, to a further pivot axis which is orthogonal to the pivot axis 12, limited to be rotatably mounted. That is, the coil frame 8 is formed so that either cylindrical or conical cheeses can be wound on it.
As in Fig. 1 further indicated, in the coil frame 8 freely rotatably supported cross-wound bobbin 5 during the winding operation with its surface on a bobbin drive roller 9, which is acted upon by an electric motor 33 single motor.

The electric motor 33 is connected via a control line 35 to the workstation computer 28.

Furthermore, a thread traversing device 10 is provided for traversing the thread 16 during the winding process.
Such, in the Fig. 1 only schematically indicated Fadenchangiereinrichtung 10 preferably has a finger thread guide 13, which, acted upon by an electromagnetic, reversible single drive 14, traversing the thread 16 running on the cheese 5 at high speed between the end faces of the cheese 5.
The yarn guide drive 14 is also connected via a control line 15 to the workstation computer 28 in connection.
Such jobs 2 usually also have a thread connecting device 42, preferably a pneumatic splicing device, a gripper tube 43 for handling the lower thread and a suction nozzle 17, with which an accumulated on the cheese 5 top thread can be added and inserted into the thread connecting device 42.

The Fig. 2 shows the winding device 4 a job 2 in a perspective front view.
As indicated, each of these workstations 2 has a winding unit housing 31 equipped with an input device 32, which accommodates, inter alia, the control device of the workstation 2, preferably a so-called winding station computer 28. At the winding unit housing 31, the winding device 4 of the job 2 is also set, which consists essentially of the creel 8 for holding the sleeve 18 of a cheese 5, the bobbin drive roller 9 for rotating the sleeve 18 and the cheese 5 and a Fadenchangiereinrichtung 10 for traversing on the cheese 5 accumulating thread 16 consists.

The Fadenchangiereinrichtung 10 has a finger thread guide 13, the electromagnetic single drive 14 is connected via a control line 15 to the winding station computer 28. The finger thread guide 13 is controlled via the winding station computer 28 controllable, that is, among other things, the thread laying speed and the thread laying area are precisely adjustable.

The bobbin drive roller 9 also has an electromagnetic single drive 33, which in turn is connected via the control line 35 to the winding station computer 28.

The coil frame 8, which, as already explained above, is rotatably mounted limitedly limited at least about a pivot axis 12, has two coil frame arms 20, 21, which in turn are each equipped with a rotatably mounted sleeve receiving plate 22.
The arranged on the Spulenrahmenarm 21 sleeve receiving plate 22 which is operatively connected to a reel brake 23 is mounted axially displaceable.
That is, this arranged on the Spulenrahmenarm 21 sleeve receiving plate 22 can, if necessary, in particular for inserting a cheese reel sleeve 18 or for removing a cross-wound bobbin 5, slightly withdrawn.
The freely rotatably mounted sleeve receiving plate 22 on the coil frame arm 20 is arranged easily replaceable.
That is, this sleeve receiving plate 22 may, if necessary, for example, after loosening a bolt 34, easily removed from its storage on the Spulenrahmenarm 20 and replaced by an adapter 19, which in turn has a corresponding sleeve receiving plate 22.

In practice, in each case depending on the cross coil format, which is to be produced, first a suitable cheese coil 18 and an associated adapter 19 is selected. Subsequently, the cross coil sleeve 18 corresponding to the desired cross coil format is inserted into the coil frame 8, fixed by means of the associated adapter 19 between the coil frame arms 20, 21 and the corresponding sleeve receiving plates 22 of the coil frame 8 and selected on the input device 32, the desired cross coil format.
The winding station computer 28 connected to the input device 32 then controls the drive 14 of the yarn finger guide 13 such that the yarn 16 is always wound in the region in which the inserted cheese package 18 is positioned.
That is, the finger thread guide 13 traverses the run-up thread 16 in the in Fig. 2 marked with α angle range, which leads, for example, to produce a 2 "wide cheese 5.

Claims (8)

1. Winding device (4) for a workstation (2) of a textile machine (1) producing cross-wound bobbins, comprising a creel (8) for holding a rotatably mounted cross-wound bobbin tube (18), a mechanism (9, 33) for rotating the cross-wound bobbin tube (18) or a cross-wound bobbin (5) as well as a separately drivable thread traversing mechanism (10) for traversing a thread (16) running onto the cross-wound bobbin (5), which is configured in such a way that the traversing stroke can be selectively changed and different cross-wound bobbin formats can be produced in this way,
   characterised in that
   the winding device (4) has a creel (8), which can be easily modified by equipping with adapters (19) of different lengths, in such a way that cross-wound bobbin tubes (18) of different lengths and different tube formats can be fixed between the creel arms (20, 21) of the creel (8).
2. Winding device according to claim 1, characterised in that the respective adapter (19) can be fixed instead of a tube receiving plate (22) on one of the creel arms (20, 21) of the creel (8).
3. Winding device according to claim 1 and 2, characterised in that the adapter (19) is in each case configured as a tubular component and is equipped with a rotatably mounted tube receiving plate (22) arranged at the end.
4. Winding device according to claim 3, characterised in that the adapter (19) can be equipped with tube receiving plates (22) adapted to the different tube formats.
5. Winding device according to claim 2, characterised in that the adapter (19) is arranged, in each case, on the creel arm, which is opposite the creel arm, which is equipped with a bobbin brake (23).
6. Winding device according to claim 1, characterised in that the thread traversing mechanism (10) has a finger thread guide (13) and is connected by its drive (14) to a control mechanism (28) of the relevant workstation (2).
7. Winding device according to claim 1, characterised in that a bobbin drive roller (9) which can be driven by a single motor is provided and rotates the cross-wound bobbin (5) during the winding process by means of frictional engagement.
8. Winding device according to claim 1, characterised in that the winding device (4) has a creel (8) which, apart from a pivot pin (12) running parallel to the axis of rotation of the cross-wound bobbin (5), has a further pivot pin running orthogonally with respect to the pivot pin (12).

Images