ES2929795T3 - Transport device for a spinning mill - Google Patents

Abstract

The invention relates to a transport device for a spinning mill for the supply of roving bobbins (12) to the ring spinning machines (1) and the disposal of empty spinning tubes, with a system of suspension rails ( 10) which is arranged between at least one roving machine (14) and one ring spinning machine (1) and with a storage device (16), which allows intermediate storage of trains of hanging cars (11), which They are equipped with full roving bobbins (12) or with empty spinning tubes. According to the invention it is provided that in the area of the ring spinning machine (1) a gate (2) with a large number of rows of gates (3) is installed, which are connected to the hanging rail system ( 10). via a switch configuration (15) in such a way that, if necessary, a plurality of trains of hanging wagons (11), which have rotating empty tubes, can be pulled out of the rows of gates (3) at the same time than the ring spinning machine (1) can be extended and then simultaneously the same number of hanging car trains (11), which are equipped with complete roving bobbins (12), can be moved back to the rows of creels (3) of the ring spinning machine (1). (Automatic translation with Google Translate, without legal value)

Description

DESCRIPTION

Transport device for a spinning mill

The invention relates to a transport device for a spinning mill for supplying the ring spinning frames with feed bobbins and for removing the empty tubes with a hanging rail system arranged between at least one roving frame and one ring spinning frame and Equipped with a storage device, which allows the intermediate storage of trains of hanging cars loaded with full feeding reels or with empty tubes.

In connection with the operation of ring spinning frames, different embodiments of transport devices for feed bobbins have been known for a long time. For example, the method of installing between the roving frames and the ring spinning frames a network of hanging rails is known, on which trains of hanging cars loaded with new feed bobbins or empty tubes are movably guided.

Conveyor devices of this type for feed reels are also described, sometimes in quite a detailed manner, in the patent literature of numerous patent applications.

From DE 42 13 122 A1, for example, a transport device is known in which a block of spinning machines, preferably so-called roving frames, is connected via a hanging rail system to a block of ring frames. of rings.

The system of hanging rails, through which the trains of hanging cars move either manually, or by means of "locomotives" or friction wheel drives, and loaded with full feeding reels or empty tubes, incorporates a cleaning device for the empty wick tubes, as well as a central stop for the intermediate storage of the hanging car trains.

The hanging rail system has several creel rows in each case in the creel area of the ring spinning frame, which are connected at the end of the ring spinning frames to an annular rail of the hanging rails.

A comparable transport device with a suspension rail system interposed between roving frames and spinning frames is also described in DE 19508399 C2. In this known transport device, the hanging rail system has a storage unit for the hanging car trains in the area of the roving frames and up to four creel rows in the area of the ring spinning frames.

Also in this case, the creel rows located at the end of the ring spinning frames are each connected via needle changes to a ring rail of the hanging rail system.

In addition, in connection with the transport devices for the feed reels, so-called diverting devices are known. It is intended to reduce with these diversion devices the number of necessary point changes in hanging rail systems.

Documents DE 10 2007 014 596 A1 and DE 10 2007 029 288 A1, for example, describe transport devices for feed bobbins, normally arranged between at least one roving frame and several ring spinning frames, which have a network of rails suspension carriages in which trains of suspension carriages are guided in a displaceable manner.

These known transport devices comprise at least one main suspended rail track and several secondary suspended rail tracks, a diverting device being arranged between the main suspended rail track and the secondary suspended rail tracks.

In other words, in an area between a main suspension rail track and one of the secondary suspension rail tracks, a deviation device is installed, which moves along the main suspension rail track and has two rails supported scrollable with hanging rail sections.

The rails are displaced transversely to their direction of travel in the diverting device so that their suspension rail sections can be aligned with the main suspension rail track as well as with one of several secondary suspension rail tracks.

Through this suspension rail track connection, suspension carriage trains can be diverted in both directions. This means that, by means of these diverting devices, undercarriage trains loaded with full feed bobbins can be diverted from a main overhang track to a secondary overhang track on the creel of a ring spinning frame and redirect, after emptying the feed reels, from the secondary hanging rail tracks to the main hanging rail track connected to a feeding machine or to an intermediate store.

However, the drawback of the known conveying devices described above is that the suspended rail trains positioned on the creel rows of a ring spinning frame can only be replaced individually and thus one after the other.

This means that, if several trains of hanging carriages have been positioned on one of the creel rows of a ring spinning frame, which are to be exchanged, the exchange process takes a relatively long time, since before the train can be inserted of hanging cars loaded with new full feed bobbins in one of the creel rows of a ring spinning frame, the train of hanging cars loaded with empty tubes has to be removed from the creel row.

In modern ring spinning frames having a plurality of creel rows, for example four to ten creel rows, the changeover process is consequently relatively lengthy and leads to not insignificant production losses.

Especially in the case of batch changes, in which all the trains of hanging carriages placed on the creel rows always have to be changed, considerable production losses usually occur for the time being, since the continuous spinning of rings is disconnected during the entire changing process.

Starting from the state of the art described above, the invention sets out the objective of developing a transport device for a spinning mill, which serves to supply feed bobbins to the ring spinning machines and to remove empty tubes and which presents a hanging rail system with a storage device arranged between at least one roving frame and a ring spinning frame, with which hanging car trains can be changed extremely quickly and thus very effectively, especially also during lot changes.

This task is solved according to the invention by installing in the area of the ring spinning frame a creel with a plurality of rows of creels connected via a needle changing configuration to the hanging rail system so that, in case of need , multiple hanging car trains loaded with empty tubes can be removed from the creel rows of the ring spinning frame at the same time and the same number of hanging car trains loaded with full feed bobbins can then be inserted again in the same way. Simultaneous, in the rows of creels of the continuous ring spinning.

According to the invention, it is provided that the switch configuration has a number of straight connecting tracks, as well as a number of crossing tracks that cross the connecting tracks and that, in order to connect the connecting tracks with the tracks of crossing, a previous switch and a bridge switch are respectively installed in the crossing areas of the connecting tracks and the crossing tracks.

The number of connecting ways and the number of crossing ways are equal and correspond to the number of rows of creels installed on the creel of the ring spinning frame.

Other advantageous embodiments of the invention are the subject of the dependent claims.

The conveying device according to the invention has in particular the advantage that, when simultaneously removing a plurality of suspended car trains loaded with empty tubes and then simultaneously introducing the same number of suspended car trains loaded with new feed reels, the period of The time previously required to exchange a plurality of trains of hanging cars positioned on the creel rows of a ring spinning frame is considerably shortened.

Since the period of time during which the ring spinning frame is switched off is also shortened in this way, the productivity of the ring spinning frames is also significantly improved with the transport device according to the invention, especially when batch changes occur frequently.

In an advantageous embodiment, provision is made for the storage device to be configured so that all trains of hanging carriages taken from the creel rows of the ring spinning frame can enter the storage device at the same time and, The same number of hanging car trains can then leave the storage device again at the same time in the direction of the ring spinning frame.

This means that during a hanging car train exchange, even if a large number of hanging car trains are changed at the same time, delays of any kind are avoided both in the area of the ring spinning machines and in the storage device area.

Preferably, between four and ten creel rows are arranged in each case in the creel region of a ring spinning machine, an arrangement with six creel rows being considered particularly advantageous in modern ring spinning frames.

By arranging six creel rows, i.e. three creel rows per longitudinal side of the spinning frame, not only is adequate feeding of the numerous spinning positions of the ring spinning frame ensured in a simple manner , but also that, if necessary, hanging car trains loaded with empty tubes can be easily and quickly exchanged for hanging car trains loaded with new feed reels.

The storage device preferably has a system for pre-storage which has a plurality of first tracks corresponding to the number of creel rows of the at least one ring spinning frame and the same number of second tracks. Preferably, a first track is respectively arranged adjacent to a second track and a first switch is respectively arranged and configured at the end facing at least one ring spinning frame of the first and second tracks so that in a first position of the first switch a train of hanging cars can enter the first track and in a second position of the first switch a train of hanging cars can leave the second track. In this way, immediately after the entry of the hanging car trains with empty tubes on the first tracks, the hanging car trains intermediately stored on the second tracks can leave with full feed reels in the direction of the spinning frames. of rings. Thus, the batch change in a ring spinning frame can be carried out quickly.

Preferably, at the other end of the first and second tracks, respectively, a second switch of a second switch is arranged and configured so that in a first position of the second switch a train of hanging cars can leave the first track. , and in a second position of the second switch, a train of hanging cars can enter the second track. In this way, the second tracks can advantageously be refilled with full feed coils and the empty tube-laden hanging car trains can be removed from the first tracks. Hanging car trains with the empty tubes can be taken to the roving frame or to a main warehouse.

However, it is particularly preferred that the storage device comprises, between the pre-storage system and the at least one roving frame, another pre-storage system that has a number of lanes equal to the number of creel rows of the at least one ring-spinning continues. In this way, two batch changes can be made immediately one after the other.

According to an improved embodiment of the invention, the connecting tracks lead to the storage device and the crossing tracks lead to the creel rows of the ring spinning frame.

Preferably, the previous needle changes each have an offset position as well as a straight position. In the offset position, the crossover tracks are preferably connected to the connecting tracks and in the straight position, the connecting tracks are preferably connected to the connecting tracks of another switch configuration.

The bridge switchovers can preferably be arranged so that the connecting tracks or the crossing tracks are continuous. For this purpose, the bridge point switches can have, for example, a rotatable track element.

In addition, the pre-point switches each have their own drive, for example an electric motor drive, while the numerous bridge point switches are connected by means of a lever linkage and are driven by a common drive, preferably also an electric motor drive.

Since both the drives of the preneedle changes and the drive of the bridge needle changes are connected to a central control unit of the spinning mill, a defined activation of the configuration is ensured at any time if necessary. of needle changes.

This means that switch configurations of this design allow a defined simultaneous driving of a large number of hanging car trains relatively easily, so that multiple trains can be safely pulled out at the same time if necessary. of hanging carriages of the creel rows of a ring spinning frame and then introducing the same number of hanging carriage trains into the creel rows of a ring spinning frame.

The invention will be explained in greater detail below with reference to the exemplary embodiments shown in the drawings.

It is shown in:

Figure 1 in a side view, the creel of a ring spinning frame, presenting the creel on each longitudinal side of the spinning machine three rows of creels, that is, a total of six rows of creels, illustrated with respect to the only one of the so-called punches that hold the lower rollers of the drawing benches continues to spin rings;

2 in a view from above, a conveying device according to the invention and arranged in a spinning mill with three ring spinning frames each provided with a creel having a plurality of creel rows, the creel rows in each case being connected to through a configuration of changes of point to a system of hanging rails equipped with a storage device;

3 shows a section of the transport device represented in FIG. 2 on a larger scale;

FIG. 4 is a view of a needle change configuration installed on the input side of the creel rows of a ring spinning frame;

Figure 5 the needle change configuration shown in figure 4 seen from below, the needle change configuration having been designed so that up to six trains of rings can be removed from the creel rows of the ring spinning frames at the same time. suspension trolleys and drive them in the direction of the storage facility, as well as in such a way that the same number of trains can then be driven at the same time Hanging carriages coming from the storage device in the direction of the creel rows of the ring spinning frames.

1 shows the creel of a ring spinning frame 1 in a side view. However, the ring spinning frame 1 arranged in a spinning mill is shown only very schematically, i.e. of this ring spinning frame. Rings 1, only one of the so-called punches 13 that support the lower rollers of the drawing bench of the ring spinning frame 1 is shown in Figure 1.

As can be seen, the creel 2 of the ring spinning frame 1 has three creel rows 3 per longitudinal side of the spinning machine in the exemplary embodiment, i.e. a total of six creel rows 3 formed by rails 9 of a hanging rail system identified as a whole with the reference number 10.

On these rails 9 of the hanging rail system 10, trains of hanging cars 11 run loaded, as indicated in FIG. 1, with full feed reels 12, preferably roving frames, or loaded with empty tubes. The suspension carriage trains 11 can be moved on the suspension rail system 10 and as a rule consist of interconnected support elements, as a rule, and can therefore also be driven around curves.

The support elements are guided in a manner known per se by means of rollers in the downwardly open, Q-like rails 9 of the hanging rail system 10.

The drive of these trains of hanging cars 11 is normally produced manually, by means of "locomotives" or through friction roller drives.

2 shows in plan view a transport device according to the invention arranged in a spinning mill for feeding ring spinning frames 1 with feed bobbins 12 or for discharging tubes emptied in the course of the spinning process. spun by ring spinning machines 1.

As already explained above, the transport device has a suspension rail system 10 on which trains of suspension carriages 11 are guided in a displaceable manner.

As can also be seen, in the exemplary embodiment, a ring spinning frame block consisting of three ring spinning frames 1 is connected via a hanging rail system 10 to two roving frames 14.

In the area of the creels 2 of each of the three ring spinning frames 1, six creel rows 3 have been respectively installed as a whole, respectively connected via a needle change configuration 15 to the rail system. pendants 10.

As also shown in FIG. 2, the hanging rail system 10 is additionally provided with a storage device 16. The storage device 16 has a first pre-storage system, at the end of which are respectively the point changes 22 and 23. The storage device 16 further comprises a second pre-storage system 17.

The storage device 16 is also connected via a connection path 4 to at least one roving frame 14, two roving frames 14 being represented in the exemplary embodiment.

In the roving frame 14, the hanging car trains 11 are filled with new feed bobbins 12. That is, the hanging car trains 11 loaded with empty tubes are changed in the roving frame 14 as soon as possible, that is, they are filled with new supply coils 12 and are then conveyed via the connecting track 4 to the storage device 16, where they are first temporarily stored in the second pre-storage system 17 which, technically speaking transport, is connected to the first pre-storage system of the storage device 16.

Figure 3 shows on a larger scale a section of the suspension rail system 10 shown in its entirety in Figure 2.

As can be seen, the creels 2 of the ring spinning frames 1 each have a total of six rows of creels 3 each connected via a needle shift configuration 15, which will be explained in more detail below in view of figures 4 and 5, to the hanging rail system 10 of the transport device configured according to the invention.

The needle shift configuration 15 and thus the creel rows 3 are attached to a storage device 16, which has pre-storage systems.

The first pre-storage system has adjacent tracks 18 and 19 respectively. That is, the two tracks 18 and 19 lie directly next to each other. The number of track pairs 18 and 19 corresponds to the number of creel rows 3 of a ring spinning frame 1. In the present exemplary embodiment, the first pre-storage device has six track pairs 18 and 19 and thus Consequently, a total of twelve routes.

The storage device also has a second pre-storage device 17. The pre-storage device 17 has the same number of lanes 20 as a ring spinning frame has creel rows. Therefore, in the present exemplary embodiment there are six paths 20.

Figures 4 and 5 respectively show different views of an advantageous embodiment of a switch configuration 15.

Figure 4 shows the needle change configuration 15 from above, while Figure 5 shows a view from below.

As can be seen in particular in FIG. 5, such a switch configuration 15 has, in the exemplary embodiment, six so-called connecting paths 21 which pass through the switch switch configuration 15 in a straight line, thus as well as six so-called crossing tracks 25, which cross the connecting tracks 21 and respectively form an extension of one of the creel rows 3 of a ring spinning frame 1. In the direction of conveyance F, are installed on the input side of the point change configurations 15 pre-change points 5, each of the total of six pre-change points 5 being arranged in the region of an incoming connection track 21 and each of them can be activated independently defined by means of a separate drive 24.

In addition, these configurations of point changes 15 have bridge point changes 6 in the crossover areas of the connecting tracks 21/crossing tracks 25.

In this exemplary embodiment, the needle change configurations 15 have a total of fifteen bridge needle changes 6 respectively.

As illustrated, if necessary and depending on the connection position of the pre-point changes 5 and the bridge point changes 6, up to six trains of hanging carriages 11 can be simultaneously removed from the rows of creels. 3 of a ring spinning machine 1 and then simultaneously feed up to six trains of hanging carriages 11 into the creel rows 3.

However, the trains of hanging carriages 11 coming from the storage device 16, which enter via the connecting tracks 21 into the switch configuration 15, can also be guided via a corresponding switch position of the switch points. 5 so that they pass in a straight line through the spool pattern 15 in the direction of the protruding connecting tracks 21 and thus into a rear spool pattern 15.

As can be seen in FIG. 4, the pre-point changes 5 each have a separate electric motor drive 24, wherein the drives 24 can be actuated, like the drive 8 for the bridge point changes, preferably via a central control device of the spinning mill.

In addition, the many bridge needle switches 6 are connected via a lever linkage 7 and via this lever linkage 7 to their common drive 8.

The arrangement and design of a switch configuration 15 shown in the exemplary embodiment offers the great advantage in particular that up to six suspension carriage trains 11 can be removed simultaneously and without any problems from the stations. creel rows 3 of a ring spinning frame 1, and then simultaneously feed the same number of hanging carriage trains 11 into the creel rows of ring spinning frame 1 simultaneously, so that achieves a considerable reduction in machine downtime, especially in the case of batch changes.

Function of the transport device according to the invention:

When in one of the ring spinning frames 1, for example in the central ring spinning frame, of the feed bobbins 12 of the hanging carriage trains 11 positioned on the creel rows 3 of the creel 2 of the ring spinning machine 1 remain empty, it is necessary that, in order to continue with the spinning process, the trains of hanging carriages 11 are changed, it being desirable that the change process last the shortest possible time.

This means that the six hanging car trains 11 positioned on the creel rows 3 of the central ring spinning frame 1, now loaded with empty tubes, must be replaced as quickly as possible by six hanging car trains 11 loaded with new feed coils 12.

Therefore, in order to be able to simultaneously remove the six trains of hanging carriages 11 loaded with empty tubes from the creel rows 3 of the ring spinning frame 1, the needle change arrangement 15 arranged by the entry side of creel 2 of central ring spinning frame 1.

That is, the previous needle changes 5 and the bridge needle changes 6 of the needle change pattern in question 15 are switched so that, as far as the feed technique is concerned, each of the rows of creels 3 is constantly connected to one of the connecting tracks 21 of the hanging rail system 10, which traverse the switch configuration 15 in a straight line.

For this purpose, the pre-switches 5 are switched on by means of their drives 24 in their deflection position and the bridge needle switches 6 are activated so that they are, as far as the feed technology is concerned and with with respect to the crossing lanes 25, in the passing position.

This means that the bridge needle changes 6 , which are connected via a lever linkage 7 to a common drive 8 , are switched, for example, by the central control device of the spinning mill, so that all trains of hanging carriages 11 cross the connecting tracks 21 located in each case in between and can finally enter the connected connecting track 21 via the previous switch 5 .

Via the connected connecting tracks 21 all the trains of suspended cars 11 continue to run in the direction of the storage device 16, the connecting tracks 21 being connected in each case to the switch 22 of the first pre-storage device.

The first pre-storage device, which has a total of 12 tracks 18, 19, has needle changes 22 or 23 at its ends.

In practice, a train of hanging cars 11 loaded with new feed reels 12 are temporarily stored in each case on the tracks 19 of the first pre-storage device.

That is to say, the trains of hanging cars 11 loaded with empty tubes are driven by the switches 22 so that they enter the empty tracks 18 of the first pre-storage device, where they are temporarily stored.

The six trains of hanging carriages 11 loaded with new feed reels then leave the first pre-storage device and arrive, via connecting tracks 21, at the switch configuration 15, which continues to present the starting position. switching that had been set for the departure of the trains of hanging cars 11 loaded with empty tubes.

This means that the undercarriage trains 11 loaded with new feed bobbins deviate in the direction of the creel rows 3 and can enter the creel rows 3 of the ring spinning frame 1 at the same time.

After the proper positioning of the hanging car trains 11, a spinning process can be started again immediately on the ring spinning frame 1.

Subsequently, from the second pre-storage device 17, the hanging car trains 11 loaded in the roving frame 14 with new supply bobbins 12 are transferred to the first pre-storage device. To do this, the switch points 23 are arranged so that the hanging car trains 11 with new feed bobbins move from the tracks 20 to the free tracks 19 of the first pre-storage device. In addition, the trains of hanging cars 11 loaded with empty tubes, temporarily stored up to that moment on the tracks 18 of the first pre-storage devices, are transported by means of the corresponding regulation of the switch changes 23, to the tracks 20 of the second device. pre-storage 17, from where the hanging car trains 11 are subsequently sent, i.e. as soon as possible, via the connecting track 4, to the roving frame 14.

In the roving frame 14, the hanging car trains 11 are recharged with new feed bobbins 12.

Reference list

1 Continuous Ring Spinning

2 Steak

3 row of creels

4 way connection

5 Previous needle change

6 Changing bridge pins

7 Lever linkage

8 Drive

9 lane

10 Suspension rail system

11 Hanging Car Train

12 Power coil

13 punch

14 roving frame

15 Setting of needle changes

16 storage device

17 Second pre-storage device

18 Path of the first pre-storage device

19 Path of the first pre-storage device

20 Path of the second pre-storage device

21 connection track

22 Change of needles

23 Change of needles

24 Drive

25 crossroad

F Transport direction

Claims (8)

1. Conveyor device for a spinning mill for supplying the ring spinning frames (1) with feed bobbins (12) and for removing the empty tubes with a hanging rail system (10) arranged between at least one roving frame (14) and a ring spinning machine (1) and equipped with a storage device (16), which allows the intermediate storage of trains of hanging cars (11) loaded with full feed reels (12) or tubes, characterized by In the area of the ring spinning frame (1) a creel (2) with a plurality of rows of creels (3) is installed, connected through a configuration of needle changes (15) to the system of hanging rails (10 ) so that, if necessary, a plurality of trains of hanging cars (11) loaded with empty tubes can simultaneously leave the rows of creels (3) of the ring spinning frame (1), because, then, the same number of trains of hanging cars (11) loaded with new feed bobbins (12), can enter the creel rows (3) of the ring spinning frame (1) at the same time , because the switch configuration (15) presents a number of straight connection tracks (21) and an equal number of crossing tracks (25) that cross the connection tracks (21), because this number corresponds to the number of rows of creels (3) installed on the creel (2) of the ring spinning frame (1), and because, for the connection of the connecting tracks (21) to the crossing tracks (25), a previous point change (5) and a bridge point change (6) are respectively installed in the crossover areas of the connecting tracks (21) and the crossing tracks (25). Conveyor device according to claim 1, characterized in that the storage device (16) is designed in such a way that all trains of hanging carriages (11) removed from the creel rows (3) of the ring spinning frame (1) can simultaneously enter the storage device (16) and that, subsequently, the same number of trains of hanging cars (11) can leave the storage device (16) at the same time in the direction of the continuous line. ring spinning (1), because the storage device (16) has a pre-storage device provided with a plurality of first tracks (18) corresponding to the number of rows of creels (3) of the at least one spinning frame of rings (1) and the same number of second tracks (19), by which a first track (18) is arranged respectively next to a second track (19) and by which a first change of points (22) is arranged and configured respectively in the former end oriented towards the at least one ring spinning machine (1) of the first and second tracks so that, in a first position of the first switch change (22), a train of hanging carriages (11) can enter on the first track (18) and, in a second position of the first switch (22), a train of hanging cars (11) can leave the second track (19). Conveyor device according to claim 2, characterized in that a second switch point (23) is respectively arranged and configured at the other end of the first and second tracks so that in a first position of the second switch point (23) ) a train of hanging cars (11) can leave the first track (18) and, in a second position of the second switch (23), a train of hanging cars can enter the second track (19). Transport device according to one of Claims 2 or 3, characterized in that the storage device (16) has a further storage device (17) between the pre-storage arrangement and the at least one roving frame (14). which has the same number of tracks (20) as the number of creel rows (3) of the at least one ring spinning frame (1). Conveyor device according to one of the preceding claims, characterized in that the connecting tracks (21) lead to the storage device (16) and the crossing tracks (25) lead to the creel rows (3) of the continuous ring spinning (1). Conveyor device according to one of the preceding claims, characterized in that the prechanges (5) each have a deflection position, in which the crossover tracks (25) are connected to the connecting tracks (21) , and a straight position, in which the connection tracks (21) are connected to the connection tracks (21) of another configuration of needle changes (15). Conveyor device according to one of the preceding claims, characterized in that the bridge switch rafters (6) can be arranged so that the connecting tracks (21) or the crossing tracks (25) are continuous. Conveyor device according to one of the preceding claims, characterized in that the numerous bridge switch gears (6) are connected via a lever linkage (7) to a common drive (8) that can be actuated independently. defined.