EP2140050A2

EP2140050A2 - Transport device in a spinning mill

Info

Publication number: EP2140050A2
Application number: EP08734662A
Authority: EP
Inventors: Karl-Heinz Mack
Original assignee: Oerlikon Textile GmbH and Co KG
Current assignee: Oerlikon Textile GmbH and Co KG
Priority date: 2007-03-23
Filing date: 2008-03-19
Publication date: 2010-01-06
Also published as: DE102007029288A1; WO2008116584A3; WO2008116584A2

Abstract

According to the invention, the requirement for points in the overhead conveyor system for transport of suspended carriage trains (13) with roving bobbins (14) and roving spools may be avoided by means of a transfer device (18) which may be moved parallel to a main overhead conveyor track (17) and comprises a carriage (112), which may be moved within the transfer device, perpendicular to the transport direction thereof, such that a transfer overhead track section (113) arranged therein is aligned with the main overhead conveyor track (17) and with a transfer overhead track section (111) arranged within the transfer device (18). Suspended carriage trains can be transferred between the main overhead conveyor track and branch overhead conveyor tracks (11) by means of said transfer overhead track sections (111, 113).

Description

Transport device in a spin line

Technical area

The invention relates to a transport device for roving bobbins between at least one roving frame and multiple ring spinning machines, wherein the transport device comprises a network of overhead rail or hanging railways in which suspension trolley trains are moved, can be hooked into the roving, with at least one main hanger rail and several branches. Hängeschienenbahn and with transfer device between the main hanger rail and the branch-hanger railways.

State of the art

From EP 1 478 794 B1 a system and a method for moving and diverting trains from articles in a transport system for such articles is known, in which a carriage with a plurality of juxtaposed carriages is located in the region between the main main rail track and the branch main rail track Suspended rail track sections is movable. In this carriage, a conveyor for conveying suspension trolleys with goods on one of the monorail rail sections is displaced and can move a located in this hanger rail section suspension trolley train. This slide must also contain facilities by means of which from a main main rail track in the branch main railway leading overhead monorail turnouts are controllable.

General description of the invention

The object of the invention was therefore to provide a more expedient, simpler and less expensive solution for the problem solved by the above-described device. It solves this problem with the features mentioned in claim 1.

Further advantageous details and embodiments are apparent from the dependent claims and from the description.

Specific description of the invention

In the figures 1 to 4 of the drawing, an embodiment of the invention is shown schematically. Show it

Figure 1 is a plan view of the subject of the invention in driving position. Fig. 2 is a plan view of the subject invention in changing position; Fig. 3 shows the view of the article of the invention in changing position;

Fig. 4 shows a device for controlling the movement and the fixation of a suspension trolley train. In the figures 5 to 14 of the drawing, a particular embodiment of the invention is shown schematically. Show it

5 shows the plan view of a first embodiment of the invention in the driving position. Fig. 6 is a plan view of the article of Figure 5 in change position. Fig. 7 is a plan view of a push / pull element;

Fig. 8 is a plan view of another embodiment of a push / pull element; 9 is a plan view of a transfer device with push / pull suspension slides; 10 is a plan view of a variant of the displaceable Hängeschienenbahn- sections. 11 shows another embodiment of a transfer device with points unit; Fig. 12 is a side view of the article of Fig. 11;

Fig. 13 is a plan view of the embodiment of a transfer device with

Soft harp; Fig. 14 is a plan view of the subject of Figure 13 with push / pull suspension slides.

FIG. 1 shows the initial regions of three suspension rails 1, 2, 3, which, for example, can be associated with rows of gates of a ring spinning machine. However, it may also be suspended rails of a storage device for temporary storage of suspended trolley trains.

In this hanger rails 1, 2, 3 hanging trolley trains 4 shown in more detail in Figure 3 can be moved to the full roving 5 or empty roving sleeves are appended. The

Hanging trolley trains consist of flexibly interconnected links 6, so that they can also pass through curves. The members are guided in a conventional manner by means of rollers 7 in the downwardly open suspension rails.

As can be seen from Figure 1, extends transversely to the suspension rails 1, 2, 3, a feed path 8, to be supplied via the suspension trolley trains 4 one of the suspension rails. This purpose is served by a total of 9 designated transfer device, which has a below two suspension rails 10 guided in these suspension rails carriage 11. This car may have a motor not shown here, which worried his method on the suspension rails. On the underside of this carriage 11 are two carriages 12, 13 displaceable by means of controllable motors 14 transversely to the direction of travel of the carriage, which are provided on their underside with sections 15, 16 of suspension rails.

The carriages 12, 13 are displaceable in opposite directions in the carriage 11: this can be done by turning or folding. But it is preferably provided to move it in a horizontal plane. The carriage 12 can be pushed into the region of the suspension rails 1, 2, 3 become. It has a pair of conveyor rollers 17 which are pressed against the members 6 of a suspension trolley train 4 and allow this to move.

The carriage 13 is displaced in the alignment of the feed track 8. In the region in which the carriage comes to the flight of the feed track, this has a portion 18 which is pressed back by the carriage against the force of at least one spring 19 on guide rods 20 back.

FIG. 1 shows the carriage 11 with retracted carriages 12, 13 in a position in which it can be moved on the suspension rails 10 along the feed track 8. In Figures 2 and 3, the carriage is shown in the transfer position, in which one or more suspension trolley trains 4 from the feed track in one of the suspension rails 1, 2, 3 or from one of the suspension rails can be transferred into the feed. As can be seen in particular from FIG. 2, the sections of suspension rail tracks 15, 16 are arranged in the carriages 12, 13 in such a way that they are aligned with one another and with the feed track 8 and the respective suspension rail in the extended position of the carriages.

An in the feed path 8 by a not shown here, the conveyor roller pair 17 corresponding conveyor roller pair moving suspension trolley train 4 is passed over the hanger rail sections 16 in the carriage 13 and the Hängeschienenbahnen- section 15 in the carriage 12 in the hanger rail 1. Here, the conveying of the suspension trolley train is then, if he no longer through the

Conveyor roller pair is moved in the course of the feed path 8, moved by the conveyor roller pair 17 in the carriage 12. Conversely, a suspension trolley train 4 with, for example, empty roving sleeves can be guided from the hanger rail 1 into the feed track 8.

In particular, when driving in suspension trolley trains 4 in the creel tracks of a ring spinning machine, the end position of the suspension trolley train or the suspension trolley trains must be kept very accurate, as this is necessary for the correct sequence of rovings.

In a first, shown in Figure 4 embodiment, a sensor 21 is arranged at the end of a hanger rail 1, the arrival of the beginning of a suspension trolley train 4 in the provided

End position via a signal line 22, a signal to a control device 23 passes, which in turn passes a stop signal to the drive motor 25 of the conveyor roller pair 17 via a signal line 24.

Preferably, however, and as not further illustrated, the sensor 21 is on the or each of the

Hanging trolley 11 or arranged on the slider 12.

The most oblique withdrawal of the rovings from the roving often leads to a

Force on a haulage train, which endeavors to move him inadmissible. To this To prevent a blocking device 26 is provided at one point along the suspension trolley train 4, by which the hanging holder of one of the roving bobbins 5 and thus the whole suspension trolley train is held firmly in position.

In a first embodiment, the blocking device 26 comprises a means of a

Working element 27 against hanger retractable and this embracing fork 28. The working element is shown here as a piston / cylinder unit, but it is understood that it can also be implemented in another form. It is actuated by the control device 23 via a signal line 29 by means of a reversing valve 30.

Alternatively, the blocking device 26, in particular the working element 26 can also be arranged on the suspension trolley 11 or the carriage 12. In particular, the blocking device can also be designed so that it is automatically released or closed by moving the carriage.

The transfer device 9 is designed so that it can guide hanging trolley trains 4 in the illustrated embodiment only from left and to the left from and into the main hanger rail 8. In many cases, a transport device can be designed so that this restriction is not disturbing or disadvantageous. If the possibility should also be provided for the transfer device to be able to also lead from the right and to the right out of and into the main suspension track 8, a second transfer device can be provided in which the carriages 12, 13 or those arranged in them Hängeschienenbahnen- sections 15, 16 are arranged according to a mirror image.

It is clear that for such a right or inferior from or to the right Überleitvorrichtung the main hanger rail another, with respect to the carriage 12, 13 and arranged on them sections of suspension rails 15 and 16 mirror images formed carriage 11 must be provided.

Moving the transfer device 9 along its suspension rails 10 and their passage from the

Main hanger rail 8 in one of the branch-hanger rails 1/2, 3 can be controlled by hand. But it is also possible to provide an automatic control that ensures the proper functioning of the necessary transitions. The description of the exemplary embodiment according to FIGS. 5 to 14 will now be described. The top sections of hanging rail tracks 11 of, for example, six rows of gates of a ring spinning machine 12 indicated only by its drive rod are shown here as branch hanging rail tracks. However, this may also be suspended rails of a storage device for temporary storage of suspension trolley trains 13. The suspension trolley trains can be supplied by a roving, not shown, but they can also be supplied from the storage device.

The suspension trolley trains 13, to which full roving bobbins 14 or empty roving sleeves are attached, can be moved in the suspended rail tracks 1. The suspension trolley trains consist of flexibly interconnected links 15, so that they can also pass through curves. The members are guided in a conventional manner by means of rollers 16 in the downwardly open, Ω-like suspension rails.

In general, each branch-hanger rail 11 is equipped with a suspension trolley train 13, but it can also be retracted into each branch-hanger rail more suspension trolley trains, which then have to be coupled together.

Transverse to the hanger railroads 11 runs a main suspension rail 17, about the suspension trolley trains 13 to the branch-Hängeschienenbahnen 11 to be removed or discharged from them. This purpose is served by a transfer device, generally designated 18, which can be moved along the main suspension rail in the direction of the two arrows in FIG. It may be provided for this purpose with a chassis which is automatically movable on rails or along a guide track. Preferably, however, it is provided that it has a guided under two suspension rails 119 on / in these suspension rails carriage 110 - the suspension rails are above the

Transfer device interrupted drawn. This car may have a motor not shown here, which worried his method in the suspension rails 19. He may have a centering device not shown here in detail, which him to be operated on each of them

Zweig-Hängeschienenbahn 11 centered and secures against displacement.

In a first embodiment according to Figures 5/6 and 9, the carriage 110 is provided on its underside with a Hängeschienen- section 111 and has in another area on its underside a carriage 112 which by means of a controllable motor not shown transverse to Direction of travel of the car is displaced. Also, the carriage is provided on its underside with a Hängeschienen- section 113.

The carriage 112 is displaceable in the direction of the arrow A of FIG. 6 in the region of the main suspension rail 17 such that one end of its suspension rail section 113 is in alignment with the main suspension rail. The other end of his Hängeschienen- section then aligned with the lying under the carriage 110 of the transfer device 18 Hanging rail section 111. In the area in which the carriage 112 comes into alignment with the main suspension rail 17, this has one of several adjacent Hängeschienenbahn- sections 114, which can be pressed back by the carriage against the force of at least one spring 115 is. The Hängeschienenbahn- sections 114 are guided on guide rods 16 which are slidable in a stationary support block 117, in which also the springs 115 are supported. It is understood that the hanger rail track sections 114, as shown in FIG. 12, can also be pivoted away against the force of a spring 115 '.

In alignment of the Hängeschienen- section 111 in the carriage 110 a per se, to be driven conveyor roller pair 118 is arranged, the conveyor rollers laterally to the members 15 of a

Hanging trolley train 13 are pressed and this shift. The conveying roller pair can be displaced in the direction of arrow B of FIG. 6 into a region having a suspension trolley train 13 behind the start or end frame of the ring spinning machine 12 of that branch suspension rail 11 to which the transfer device 18 is respectively delivered. It serves to pull out a hanging trolley train with empty tubes from the gate of the ring spinning machine 12 into the area of action of a arranged in the main hanging rail 17 conveyor roller pair 119 or for advancing a suspension trolley train with full bobbins from the main hanger rail to the expiration position of the rovings in Gate of the ring spinning machine in one of the branch-hanging railways 11.

The conveyor roller pair 118 is provided with a displacement device 118 'which extends it into the

Area of the gate of the ring spinning machine 12 allows to move. This displacement device may be designed as described later for the drivers of Figures 7 and 8.

FIG. 5 shows the transfer device 18 with the carriage 112 retracted and retracted

Conveyor roller pair 118 of their car 110 in a position again, in which it is movable on the suspension rails 19 parallel to the main suspension rail 17. In Figure 6, the transfer device is shown set in a silent position in which it allows the leftmost of the branch railways 11 to operate. She has extended the carriage 112 in the transfer position in which they can transfer a suspension trolley train 13 from this branch-hanger rail in the main hanger rail or vice versa. The associated hanger rail section 114 was pushed back. As can be seen in particular from this figure, the sections of suspension rails 111, 113 are arranged such that they are aligned with one another and with the main suspension rail 17 in the extended position of the carriage 112.

Simultaneously, the conveyor roller pair 118 was extended into the area of a standing in the hanger rail 11 suspension trolley train 13 with empty roving, which is to be replaced with a suspension trolley train with full roving. Depending on Direction of rotation of the conveyor roller pair suspended trolley trains are promoted from one or in a Zweighängeschienenbahn.

If the distance between the transfer device 18 and hanging behind the starting or final frame of the ring spinning machine 12 suspension trolley trains 13 is very large, the

Conveyor roller pair 118 fixedly arranged in the carriage and means are provided to overcome this distance.

One of these reproduced in Figure 7 means comprises an extendable push / pull element with behind a paragraph in the suspension trolley train 13, eg. Behind its first suspension bracket 120 einschwenkbaren driver 121. This driver is located at the front end of a threaded / threaded sleeve combination 122/123 whose threaded spindle 122 can be driven by a motor 124 via a worm gear 125. The threaded sleeve 123 is non-rotatably guided in the worm wheel of its worm gear 126, by means of which it is pivotable for pivoting the driver 121 approximately behind the first hanger 120 by 90 °.

FIG. 8 shows how the driver 121 can be extended by means of a telescopic cylinder / piston unit 127. This cylinder / piston unit has a plurality of non-rotatably guided piston trains 127 ', 127 ", which are pivotable by means of a motor-driven worm gear 128 for pivoting the driver 121. The control device 129 of the cylinder / piston unit is indicated.

First, standing in the branch-hanger rail 11 suspension trolley train is detected by pivoting the driver 121 behind the first, the driver facing hanger 120 of this suspension trolley train, from the branch-hanger rail out into the

Range of action of the conveyor roller pair 118 pulled and pivoted back there. By applying this pair of conveyor rollers, the suspension trolley train is guided over the Hängeschienen- sections 111 and 113 in the main suspension rail 17, where it passes through the

Conveyor roller pair 119 is detected and removed.

Then, by the conveying roller pair 119, a hanging trolley train 13 with full roving bobbins is guided over the hanging rail sections 111 and 113 between the conveying roller pair 118. When this suspension trolley train has left the conveying roller pair 118, it is pushed completely into the branch suspension rail 11 by the driver 121 pivoted back in behind the last suspension holder.

It is understood that the driver 121 can also be designed to be pivotable in the plane of the threaded spindle / threaded sleeve combination 122/123 or the cylinder / piston unit 127. Alternatively, it may be provided according to FIG. 9 that the transfer device 18 has an auxiliary suspension rail 130 arranged on the underside of the carriage 110 into which a Push / Pull Hanging Wagon 131 or auxiliary Hanging Wagon is movable, which has no hangers. Its auxiliary hanging rail has its own conveyor roller pair 132, by means of which it can be introduced via an actuatable switch 133 in the suspension rail section 111 in the carriage 110. He is at his front, in a branch-hanger rail 11 retracting end equipped with an excitable electromagnet, with the help of which he can couple with a hanging trolley train 13 in this branch-hanging rail. The electromagnet can be supplied with electrical energy via a flexible cable. Its excitation can be switched on and off by a switching device 134 arranged on the monorail 111.

The push / pull suspension trolley 131 is so long that it can be advanced by means of the conveyor roller pairs 132 and 118 to the beginning of the hanging trolley train 13 to be pulled out of a branch suspension rail 11. There he attaches to the suspension trolley train and pulls him by reversing the direction of rotation of the conveyor roller pair 118 in its sphere of action. In this case, his front end runs over the switch 133 in his auxiliary hanger rail 130. Then he stops to give the switching device 134 occasion to relax the electromagnet in the push / pull suspension trolley and solve its coupling with the suspension trolley train. Then he is pushed by means of his conveyor roller pair 132 completely in rest position in his auxiliary hanger rail 130.

Thereafter, the switch 133 can be changed over and the conveyor roller pair 118 can push the suspension trolley train into the main suspension rail 17.

The insertion of a suspension trolley train with full coils from the main hanging railroad 17 in a branch-hanger rail 11 is carried out mutatis mutandis vice versa. The suspension trolley train is pushed by the conveyor roller pairs 119, 118 to the end of the effective range of the conveyor roller pair 118. Then the push / pull suspension trolley 131 is inserted by means of its pair of conveyor rollers 132 via the switch 133 in the hanger rail section 111 and pushes the suspension trolley train completely in the two-inline 11. Here, the electromagnet of the push / pull suspension truck 131 does not need to be energized he only pushes with his front end. Thereafter, the push / pull suspension carriage returns to its rest position in the auxiliary hanger rail 130.

As mentioned, the push / pull suspension trolley 131 must be so long that it can bridge the distance between the conveyor roller pair 118 and the front end of a suspension trolley train 13 in one of the branch suspension rail tracks 11. It may therefore be necessary to lay the auxiliary hanger rail 130 as shown in a meandering manner in the transfer device 18, 18 ".

As shown in Figure 10, in order to avoid blockage of the system by a defective hanger rail section 114 of the main hanger rail 17, these each of the ring spinning machine 12 associated displaceable sections in each case a separate Branch line 135 are arranged, which is connected to the main hanger rail via a convertible switch 135 '.

In an embodiment of the transfer device 18 'shown in more detail in Figures 11 and 12, the carriage 110' equipped with a points unit 136 with a plurality of switches 137 which is mounted pivotably about a horizontal axis on the carriage of the transfer device and from below into alignment with the Main suspension rail 17 is pivoted. The portion of the main hanger rail which is pushed back or pivoted back here is not shown in FIG. 11 for the sake of clarity.

This diverter unit has one diverter less than each group of branch monorails

11 of a ring spinning machine 12 has. By pivoting the turnout unit 136 whose Weichenabzweige come with overhead track sections 111 'on the underside of the carriage 110' in flight, which in turn have been brought into alignment with the branch-hanging rail tracks 11 of the ring spinning machine 12. The switches 137 are individually actuated by turnout drives 138 as in the following representations. These point machines can be made by an operator by hand, but it is also possible to provide an automatic, automatic, intelligent control for this purpose.

As can be seen from FIG. 12, when the diverter unit 136 is pivoted upwards, a displaceable section 139 of the main suspension rail 17 is pushed or pivoted out of its position in alignment with the main suspension rail against the force of a return spring so that the points unit can take its place. It is equipped with a deflector 140 for this purpose. The points unit 136 is pivotably mounted in the carriage 110 'from below in a dashed line in FIG. 12 by means of a fluidic or electrical working element, not shown here, from below into the alignment of the main hanging rail 17. It pushes when pivoting the pivotable levers 139 movable portion of the main hanger rail from its flight with the same. By appropriately placing one of the turnouts 137 in the point unit 136, a connection between one of the branch hanging rail tracks 11 and the main hanging rail 17 can be made, are moved over the suspension trolley trains from the branch hanger rail in the main hanger rail and vice versa.

For conveying the suspension trolley trains 13, a number of conveyor roller pairs 118 corresponding to the number of branch suspensory railways 11 of a ring spinning machine 12 are provided which can be pushed together in a carriage 142 in the trolley 110 'together in a displacement device 141 preferably designed as a telescopic cylinder / piston unit are. In Figure 12 is indicated how the conveyor roller pairs 118 are displaced in the direction of arrow C in the dashed line position in which they are delivered to the suspension trolley trains 13 in the gate of the ring spinning machine 12. The conveyor roller pairs 118 in the carriage are dependent Individually controllable from the branch hanging rail, whose suspension trolley trains are to move them. It is understood, however, that instead of this conveyor roller carriage, individually movable conveyor roller pairs 118 as in FIGS. 5 and 6 or drivers 121 as in FIGS. 7 and 8 can be used.

13 and 14, the points 137 'are not arranged in a pivotable points unit but in the course of hanging rail sections 111 "arranged in the underside of the carriage 110" in the carriage of the transfer device 18 " Here, no displaceable Hängeschienenbahn- sections, but only one turnout 143 on each group of branch suspensory railways 11. The branch 144 of this switch is in Überleitstellung the transfer device 18 "as shown in Figures 13 and 14 in alignment with the entrance in one In the embodiment of Figure 14, the conveyor roller pairs 118 are not mounted in a slide-on slide in the carriage, but fixedly mounted in the carriage 110 "as in Figure 9. In order to bring suspension trolley trains from the branch monorail conveyors 11 into the region of these conveyor rollers, the push / pull suspension trolley 131 already described in connection with FIG. 9 is provided here. He can from his on the right side of the carriage 110 "arranged auxiliary hanger rail 130 via a switch 143 in the feed path 145 extend and retract, as described there suspension trolleys 13 from the gate area or push them into this.

These combinations show that the invention is not limited to the illustrated and described embodiments, but their assemblies are appropriately combined as needed by the given circumstances of a spinning plant.

In particular, when the branch-rail rails are the gate tracks of a ring spinning machine, the final position of the suspension trolley trains 13 must be maintained and maintained very accurately, as this is necessary for the correct operation of the rovings. The deduction of the rovings from the coils in the suspension trolley trains is often oblique, so that a train is made on the suspension trolley trains, which tends to move them.

In order to prevent this, the branch hanging railroads 11 may have a slight incline, at least over a portion of their length, thereby pressing a hanger hoist inwardly against the rear, closed end of the branched hanger rail. The train of roving is counteracted in this way.

Alternatively, a hanging trolley train 13 can be held in position by means of a ball catch falling in front of one of its hangers or any other heel. Another alternative provides that the suspension trolley train 13 is tightened by means of a stationary magnet, which interacts with one of its iron parts. This magnet may be a permanent magnet whose holding force can be overcome by the train of the conveyor roller pair 118 or the push / pull suspension carriage train 131 (FIG. 9, FIG. 14). The magnet can also as

Be performed solenoid, which is acted upon by the control device of the system.

The subject matter of the present invention results not only from the subject matter of the individual features and claims described and illustrated, but also from their combination with one another.

All information and features disclosed in the documents, in particular the spatial design shown in the drawings, are claimed to be essential to the invention, as far as they are new individually or in combination with respect to the prior art.

LIST OF REFERENCE NUMBERS

1 to 4:

1, 2, 3 Hängeschienenbahnen 4 Hängewagenzug 5 roving bobbins

6 members of the suspension trolley trains

7 rolls

8 feed track

9 transfer device 10 suspension rails

11 carriages 12, 13 carriages 14 engines

15, 16 sections of suspension rails 17 conveyor rollers

18 back pushable main hanger rail section

19 spring

20 guide rods

21 sensor 22 signal line

23 control device

24 signal line

25 motor of the conveyor roller pair

26 blocking device 27 working element

2? 8 fork

29 signal line

30 reversing valve 5 to 14:

125 worm gear

11 branch- 126 worm gearboxes suspended railways 40 127 telescopic cylinder / piston

12 ring spinning machine unit

13 Hanging wagon 128 Worm gear

14 roving bobbins 129 control device

15 members of a 130 auxiliary hammock rail Hanging wagon train 45 131 Push / pull suspension trolley

16 trailer rollers 132 conveyor roller pair

17 Main hanger rail 133 Turnout 18, 18 ', 18 "transfer device 134 Switching device 19 Hanging rails of the 135 branch track

Transfer device 50 136 Points unit

110, 110 ', 110 "Cart 137 Turnouts 11, I H', 111" Hängeschienen- 138 Turnout drives Section in the carriage 139 Pivoting lever

112 carriages in the car 140 deflectors

113 Suspension rail section 55 141 Displacement device in the carriage 142 Carriage

114, 114 'Hängeschienen143 soft section 144 branch in the transfer device 145 Zuführbahn

115 springs 60

116 guide rods

117 stationary holding block

118 conveyor roller pair on the car

119 Conveyor roller pair on main hanger rail

120 hangers

121 drivers

122 threaded spindle

123 threaded sleeve

124 engine

Claims

claims

1. Transportvoπϊchtung for roving bobbins between at least one roving machine and a plurality of ring spinning machines, wherein the transport device comprises a network of suspension rails, in which roving bobbins transporting suspension trolley trains are movable, with at least one main hanger rail and several branch suspension rails and with transfer device between the main hanger rail and the branch-hanging railways, characterized in that the transfer device (18) has a, in a displaceable slide (112) arranged Überleit-hanging rail section (113), that it is on the one hand with the carriage extended to the main hanger rail (17) and on the other one in the Überleitstellung the transfer device (18) with one of the branch-hanger railways (11) in alignment, firmly in the transfer device arranged Überleit-Hängeschienenabschnitt (111) escapes.

2. Transport device for roving bobbins between at least one roving frame and a plurality of ring spinning machines, wherein the transport device comprises a network of suspension rails, in which roving bobbins transporting suspension trolley trains are movable, with at least one main hanger rail and several branch suspension rails and with transfer device between the main hanger rail and the branch-hanging railways, characterized in that the transfer device (18 ') n-1 operable points (137, 137'), the branches (I H ') with n branch-hanging railways (11) are in alignment.

3. Transport device according to claim 2, characterized in that the switches (137) in one of the transfer device (18 ') mounted in the alignment of the main suspension rail (17) displaceable point unit (136) are arranged.

4. Transport device according to claim 2, characterized in that the switches (137 ') in the transfer device (18 ") are arranged and in a feed path (145) lie in Überleitstellung the transfer device with the branch (144) of a switch (143 ) in the main hanging rail (17) is in flight.

5. Transport device according to claims 2 and 3, characterized in that the points unit (136) or the transfer device (18 ") with a number of branch hanging rails (11) of a ring spinning machine (12) and parked at their mutual distance of switches (137, 137 ') and branches (111 ") is equipped.

6. Transport device according to claims 1 and 2, characterized in that the main hanger rail (17) at the locations at which a carriage (112) with Überleitschienen section (13) or a movable switch unit (136) with her in alignment can be brought, one or more from the escape of the main hanger rail (17) displaceable overhead track rail sections (114, 114 ').

7. Transport device according to claim 6, characterized in that a displaceable or pivotable carriage (112) or a pivotable points unit (136) with a monorail rail section (114, 114 ') from its normal position pushing deflector (140) is provided.

8. Transport device according to claim 1, characterized in that the transfer device (18, 18 ', 18 ") at least one pair of conveyor rollers (118), which allows a suspension carriage train from or into a branch-hanging rail (11) to move.

9. Transport device according to claim 8, characterized in that a plurality of conveyor roller pairs (118) are mounted in a common, displaceable slide (142).

10. Transport device according to claim 8, characterized in that the transfer device (18, 18 ', 18 ") has a displacement device which allows a suspension trolley train to move from or into a branch suspension rail (11).

11. Transport device according to claim 1 or 2, characterized in that the displacement device (122, 123; 127; 132) comprises a push / pull element (121; 131) which is connected to the end of a branched suspension rail track (11). to be retracted or pulled out of her suspension trolley train (13) can enter into non-positive or positive connection in order to move this in a designated position.

12. Transport device according to claim 11, characterized in that the push / pull element has a linearly movable carrier (121).

13. Transport device according to claim 11, characterized in that the displacement device is designed as a threaded gear (122/123).

14. Transport device according to claim 11, characterized in that the displacement device is designed as a telescopic cylinder / piston unit (127) with optionally a plurality of piston pulls (127 ', 127 ").

15. Transport device according to claim 11, characterized in that the push / pull element is designed as a flexible push / pull suspension trolley train (131) consisting of a space-saving in the transfer device (18, 18 ") arranged auxiliary hanger rail (130). via a switch (133) in one of the suspension rail sections (111, 111 ') in the transfer device and retractable.

16. Transport device according to claim 1, characterized in that the transfer device (18, 18 ', 18 ") at least one drive device for their own displacement, for moving their carriage (112, 142) or for moving and driving the at least one conveying device ( 118) or for pivoting their points unit (136).

17. Transport device according to claim 1, characterized in that the at least one displaceable main hanger rail section (114, 114 ') by means of a push or pivot drive having carriage (112) or point unit (136) is displaceable.

18. Transport device according to one of the preceding claims, characterized in that on the branch-hanging railways (11) locking devices are provided, the retracted suspension trolley trains (13) hold in position.

19. Transport device according to claim 18, characterized in that the branch hanging rail tracks (11) on at least a portion of their length have a slope through which a suspension trolley train (13) rolls in its fully retracted position or is held in it.

20. Transport device according to claim 18, characterized in that the locking device is formed from a with an iron component of a suspension trolley train (13) in operative connection passing magnet.

21. Transport device according to claim 18, characterized in that the locking device consists of a with a suspension trolley train (13) in operative connection passing ball catch.