EP0379600B1 - Double-sided textile machine with a plurality of winding units for producing cross-wound bobbins, in particular a two-for-one twister - Google Patents

Description

The invention relates to a double-sided textile machine with a plurality of winding units for producing cross-wound bobbins, in particular a double-wire twisting machine, with the features from the preamble of patent claim 1.

Such textile machines are constructed as multi-position machines. This means that many Similar work units, for example winding units for the production of cross-wound bobbins in the desired length. The question of space plays an important role in the installation of such machines, and care must therefore be taken to build the machines with the closest possible division of the individual work stations to one another and with a limited machine width.

It is known to use conveyor belts or trolley trains to remove the cross-wound bobbins, which are usually accommodated in the area of the central machine longitudinal axis within the machine frame (DE-A-3 731 125, US-A-4 541 577). The finished packages are transferred to these devices either manually or by handling devices. In a double-sided textile machine, the problem arises that it is only possible to work on the spool conveyor from one machine side. The second machine side can only be processed after the bobbin conveyor belt or the trolley train has been emptied.

In a machine of the type mentioned at the outset, it is also known to arrange two conveyor belts along the central axis of a textile machine. Such devices are described for example in DE-OS 32 44 015 and DE-OS 33 32 409.

In these known devices, the coil conveyor belts are arranged next to one another in one plane and run in the opposite direction. At one end of the two conveyor belts there is a device for transferring the Cross-wound bobbins from one conveyor belt to the other conveyor belt. In this known device, each side of the machine can be harvested individually and the packages can then be transported to the end of the machine with a time delay. The disadvantage of such a device is that it leads to an overly wide textile machine, which has a great influence on the spatial conditions when installing the machine.

Furthermore, an automatic winder with a mobile bobbin changer is described in DE-OS 35 11 815, which has a bobbin conveyor belt, with a bobbin gripping and lifting device serving as a storage expansion being arranged above the bobbin conveyor belt, onto which bobbins can be transferred from the bobbin conveyor belt and temporarily stored. However, the bobbins are not conveyed further on the bobbin gripping and lifting device, but have to be transferred back to the bobbin conveyor belt for further transport.

The object on which the invention is based is to design a double-sided textile machine with the features from the preamble of claim 1 in such a way that the cross-wound bobbins can be removed on both sides of the textile machine at the same time without having to accept a substantial widening of the machine.

This object is achieved according to the invention with the features from the characterizing part of patent claim 1.

Advantageous embodiments are described in the subclaims.

The basic idea of the invention, namely to arrange two conveying levels one above the other, can be realized in different ways.

In a first embodiment described in claims 2 to 4, the two conveying devices are realized within a common trolley train, in which each bobbin basket has two stacking devices, one above the other, for one bobbin each. These are quasi two conveying devices that run in the same conveying direction.

In another embodiment of the invention, which is described in more detail in claims 5 to 8, the two conveying devices are realized by two conveyor belts arranged one above the other in different levels. The two conveyor belts can run in the opposite direction or in the same direction. In the former case, at one end of the conveyor belts there is a transfer device through which the packages are transferred from one conveyor belt to the other conveyor belt, so that they finally reach the bobbin delivery point located at the other end of the machine.

In both embodiments it is achieved that funding is provided in two levels without having to accept a significantly increased machine width.

Exemplary embodiments for the two basic embodiments of the invention are explained in more detail below with reference to the accompanying drawings.

Fig. 1

in einem stark schematisierten Querschnitt eine Doppeldraht-Zwirnmaschine mit einer aus zwei Transportbändern bestehenden Fördervorrichtung für die Kreuzspulen;

Fig. 1a

in stark schematisierter Draufsicht die Fördervorrichtung der Doppeldraht-Zwirnmaschine nach Fig. 1;

Fig. 2

in einer teilweise geschnittenen Seitenansicht die Fördervorrichtung der Maschine nach Figur 1 im Bereich einer Übergabevorrichtung;

Fig. 3

in einer perspektivischen Darstellung die Übergabevorrichtung nach Figur 2;

Fig. 4

einen Teilschnitt durch eine Doppeldraht-Zwirnmaschine mit einer als Trolleyzug ausgebildeten Fördervorrichtung für die Kreuzspulen;

Fig. 5

in einer perspektivischen Darstellung einen Spulenkorb der Fördervorrichtung nach Fig. 4;

Fig. 6

eine andere Ausführungsform eines Förderkorbes für die Maschine nach Fig. 4 in Seitenansicht;

Fig. 7

eine Frontansicht eines Förderkorbes nach Fig. 6.

The drawings show:

Fig. 1

in a highly schematic cross section, a double-wire twisting machine with a conveyor for the cross-wound bobbins consisting of two conveyor belts;

Fig. 1a

in a highly schematic plan view of the conveyor device of the double wire twisting machine according to Fig. 1;

Fig. 2

In a partially sectioned side view, the conveyor device of the machine according to FIG. 1 in the area of a transfer device;

Fig. 3

in a perspective view the transfer device according to Figure 2;

Fig. 4

a partial section through a double wire twister with a trolley train designed for the package;

Fig. 5

a perspective view of a bobbin of the conveyor device according to FIG. 4;

Fig. 6

another embodiment of a conveyor basket for the machine of Figure 4 in side view.

Fig. 7

6 shows a front view of a conveyor cage according to FIG. 6.

In Figure 1 is a double-sided double wire twister shown with a machine frame 1, which rests on feet 2.1 and 2.2 connected to one another in the transverse direction by a cross-member 3. On each of the two long sides of the machine frame 1 there is a spindle bank 4.1 or 4.2 on which double-wire twisting spindles of the usual types 5.1 and 5.2 are arranged, which are driven by the spindle drives 6.1 and 6.2.

In the longitudinal direction of the machine, a large number of such double-wire twisting spindles are arranged on both sides.

In the middle of the machine frame 1 there is an attachment 8 on which bearing plates 9.1 and 9.2 for the winding members are arranged above the double-wire twisting spindles 5.1 and 5.2. Coil holders 11.1 and 11.2 for the cross-wound bobbins 10.1 and 10.2 are arranged above the bearing plates 9.1 and 9.2. The thread F1 or F2 to be wound runs in a known manner from the balloon of the two double-wire twisting spindles 5.1 and 5.2 through thread guides 7.1 or 7.2 and via lead rollers 12.1 and 12.2 to the cross-wound bobbins 10.1 and 10.2 driven by the friction rollers 13.1 and 13.2.

A conveyor device arranged in the longitudinal direction of the machine in the interior of the machine frame 1 with an upper conveyor belt 14 arranged in the area of the loading plane and a lower conveyor belt 15 arranged underneath serves for the removal of the produced bobbins 10.1 and 10.2.

As can be seen more clearly from FIGS. 1a and 2, the two conveyor belts 14 and 15 run in opposite directions in the longitudinal direction of the machine. The lower conveyor belt 15 runs in the direction A to a bobbin delivery point at the end of the machine, while the upper conveyor belt 14 runs in the direction of the arrow Ü to a transfer device 16, by means of which the bobbins placed in the area of the loading plane on the upper conveyor belt 14 are transferred to the lower conveyor belt 15 and transported by this to the bobbin delivery point and there, for example, be fed to a bobbin transport carriage 40.

The transfer device 16 consists of a paddle wheel driven by a motor 17 with four blades 16.1, 16.2, 16.3 and 16.4, each of which can accommodate a cross-wound bobbin. The paddle wheel 16 rotates step by step in the direction of the arrow D.

The operation of the conveyor is as follows:
As can be seen in FIG. 1, the cross-wound bobbins 10.1 and 10.2 produced are placed on the upper conveyor belt 14 in the area of the loading level from both machine sides. The movement of this conveyor belt 14 is controlled so that it sets in motion when a cross-wound bobbin 10.5 is placed on it and stops again after this bobbin is delivered to the transfer device 16. 2 shows how a cheese 10.6 is already on the transfer device 16 and another cheese 10.7 from the transfer device 16 is placed on the lower conveyor belt 15, on which there is already a further cheese 10.8. The movement of the lower conveyor belt 15 is controlled in such a way that when a cross-wound bobbin 10.7 is placed on it by the transfer device 16, it moves in each case by one bobbin length in the direction of arrow A, ie towards the bobbin delivery point. The lower conveyor belt 15 thus additionally serves as a storage device for temporarily storing the cross-wound bobbins transferred to the upper conveyor belt 14.

FIGS. 4 to 7 show two other embodiments of conveying devices for a double-wire twisting machine, which can correspond to the other, not shown parts of the machine according to FIG. 1.

The conveyor device according to FIGS. 4 and 5 arranged in the interior of the machine is designed as a trolley train.

The conveying device is in turn arranged in the longitudinal direction of the machine in the region of the longitudinal center plane within the attachment 18 placed on the frame, not shown, on which the bearing plates 19.1 and 19.2 for the reeling elements, namely the lead rollers 22.1 and 22.2 and the friction rollers 23.1 and 23.2 are arranged.

Supports 21 are arranged on the attachment 18, on which a longitudinal beam 24 is arranged, on which a running rail 25 is fastened.

A plurality of bobbin baskets are suspended from this running rail 25, which can move in the longitudinal direction of the machine in the direction of a bobbin delivery point and are moved back outside the machine in a way not shown.

Each of these bobbin baskets is suspended from a support arm 27 which runs on rollers 26 in the running rail 25. The bobbin has a bracket suspended from the support arm 27, which is made up of a cross member 28 and two round rods 29.1 and 29.2, each of which is connected to one another at its lower end by a base plate 30. Carriages 33.1 and 33.2 are slidably guided in the vertical direction on the round rods 29.1 and 29.2. The two upper ends of the slides are connected to one another via an upper coil holder 34 and the two lower ends of the slides are connected to one another via a lower coil holder 35. The two bobbin receptacles 34 and 35 are in the direction of arrow S from an upper position indicated by dashed lines in FIG. 4 to a lower position shown in solid lines in FIG. 4 against the force of helical compression springs 36.1 and 36.2 under the weight of a bobbin 20.4 deposited in the lower bobbin receptacle 35 slidable.

The base plate 30 is guided via rollers 31.1 and 31.2 on rails 32.1 and 32.2 arranged in the attachment 18 and oriented in the machine longitudinal direction.

The operation of the conveyor described is the following:
As long as it is empty, the bobbin case is in the upper position in which the lower bobbin holder 35 is arranged in the region of the loading plane. As soon as one of the cross-wound bobbins 20.1 or 20.2, indicated by dashed lines in the area of the loading plane, is completed, it is fed to the lower bobbin holder 35, as is shown in solid lines as a cross-wound bobbin 20.4 in FIGS. 4 and 5. The weight of the cross-wound bobbin 20.4 pushes the bobbin into the lower position in which the upper bobbin holder 34 is located in the area of the loading plane. The other cross-wound bobbin can now be applied to the bobbin holder 34 from the other side of the machine, where it is shown in FIG. 4, for example, with reference number 20.3. The now filled bobbin basket is then driven by a drive device (not shown) in the machine longitudinal direction towards the bobbin delivery point, where it is emptied and then moved on.

Here, too, the conveyor device additionally has the property of an intermediate store, the cross-wound bobbins stored in the lower bobbin receptacles 35 being simultaneously conveyed.

Of course, it is not absolutely necessary for each conveyor basket to be loaded in succession at one point from the two machine sides. Rather, the conveyor cage loaded with a cheese can also continue be transported and take up a second package from one of the two machine sides at another location.

FIGS. 6 and 7 show a variant of a trolley train with several bobbin baskets, the other parts of the double-wire twisting machine, in the interior of which the trolley train is arranged, not being shown.

The bobbin shown in Figures 6 and 7 is suspended from a support arm 27 ', which runs over rollers 26' in a longitudinal machine direction 25 '. At the lower end of the support arm 27 'is arranged about an axis 38' pivotable bracket, with an upper cross member 28 ', two with the upper cross member 28' connected vertically oriented rods 29.1 'and 29.2' and a lower cross member 30 ', on which the axis 38 'and with it forming a pivot link plates 37' are arranged. The upper cross member 28 'is connected via a releasable locking device 39' to the support arm 27 '.

On the round rods 29.1 'and 29.2' run in the manner already described, slides 33.1 'and 33.2', on which an upper coil holder 34 'and a lower coil holder 35' is arranged. Under the weight of at least one cheese, the coil receptacles 34 'and 35' move against the force of the helical compression springs 36.1 'and 36.2' from the upper to the lower position.

The loading of the bobbin baskets with cross-wound bobbins and their movement in the machine longitudinal direction takes place in the manner already explained with reference to FIGS. 4 and 5. To remove the cross-wound bobbins from the bobbin receptacles at the bobbin delivery point, as can be seen in FIG. 7, the lock 39 'can be released and the bracket pivoted transversely to the direction of movement of the bobbin basket, so that the bobbins can be easily removed from the bobbin receptacles 34' and 35 '.

Claims (8)

1. A double-sided textile machine with a plurality of winding units for producing cross-wound bobbins, in particular a two-for-one twisting machine, with a mechanism for collecting and transporting away the cross-wound bobbins produced, which has two conveying devices which move in the region of the centre of the machine in the longitudinal direction of the machine and each of which is loadable from at least one side of the machine and at the one end of which a bobbin delivery point is arranged, characterised in that the two conveying devices (14, 15; 34, 35) are arranged in at least two planes directly above one another in the interior of the machine.
2. A textile machine according to claim 1, characterised in that the two conveying devices have a plurality of bobbin baskets (34, 35) which are suspended from a guide rail (25) orientated in the longitudinal direction of the machine and are guided movably by way of guides (26, 31.1, 31.2), in which respect each bobbin basket has two delivery devices (34, 35), arranged one above the other, for one bobbin (20.3, 20.4) each.
3. A textile machine according to claim 2, characterised in that the two mutually connected delivery devices (34, 35) of each bobbin basket are arranged on a guide linkage (29.1, 29.2) and are jointly displaceable in the vertical direction out of an upper position into a lower position, in which respect in the upper position the lower delivery device (35) and in the lower position the upper delivery device (34) are arranged substantially at the level of the loading plane.
4. A textile machine according to claim 3, characterised in that the two mutually connected delivery devices (34, 35) of each bobbin basket are jointly displaceable against spring force out of the upper position into the lower position.
5. A textile machine according to claim 1, characterised in that the two conveying devices have two conveyor belts (14, 15) arranged one above the other, and a mechanism (16) is provided for transferring the cross-wound bobbins (10.5 to 10.8) from one conveyor belt (14) onto the other conveyor belt (15).
6. A textile machine according to claim 5, characterised in that the two conveyor belts (14, 15) run in opposite directions (U, A), in which respect a transfer device (16) for transferring the cross-wound bobbins (10.5 to 10.8) from one conveyor belt (14) onto the other conveyor belt (15) is arranged at that end of the conveyor belts which is remote from the bobbin delivery point.
7. A textile machine according to claim 6, characterised in that the upper conveyor belt (14) is arranged in the region of the loading plane and moves in the direction (U) of the transfer device (16), whilst the other conveyor belt (15) moves in the direction (A) of the bobbin delivery point.
8. A textile machine according to claim 6 or 7, characterised in that the movement of the two conveyor belts is controlled in such a way that in each case the conveyor belt (14) arranged in the region of the loading plane and running towards the transfer device starts up upon the application of a cross-wound bobbin (10.5) and stops again after delivery of the cross-wound bobbins to the transfer device (16), whilst the conveyor belt (15) running towards the bobbin delivery point upon the application of a cross-wound bobbin (10.7) by the transfer device (16) moves on by respectively one bobbin length.

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