WO2015124455A1 - Method and device for removing filament coils from a winding device - Google Patents

Abstract

Method for removing and sorting filament spools (4) arranged behind one another and wound oppositely to each other, from winding shafts arranged adjacent to one another in pairs, comprising the following method steps: in a first method step, both filament spools (4) wound oppositely to each other, which are arranged on the winding shafts (6), are removed from two parallel removal mandrels of the winding shafts (6); in a second method step, the filament spools (4) are brought to a sorting device (7); in a third method step, the filament spools (4) lined up on the removal mandrel (3) are pushed onto a sorting mandrel (14) of a sorting frame (12) and the filament spools (4) lined up on the other removal mandrel (3) are pushed onto a buffer mandrel of an auxiliary frame; in a fourth method step, the sorting frame (12) and the auxiliary frame are displaced in such a manner that they are opposite to each other, so that the empty sorting mandrel (14) at the opposite sorting frame (12) is opposite to the buffer mandrel of the auxiliary frame loaded with the filament spools (4) and; in a fifth method step, the filament spools (4) are arranged adjacent to each other in pairs on the sorting mandrel (14) of the sorting frame (12) adjacent to each other, and a device for the removal of filament spools (4) from the winding shafts (6) of a filament winding device, in particular for carrying out the method, characterized by two axis-parallel removal mandrels (3) both comprise such a large individual length that a removal mandrel (3) grasps a doff of filament spools (4) wound completely onto a winding shaft (6) in one removal process and transports it away from the filament winding device.

Description

 description

 Method and device for removing filament bobbins from a

 Winding device

The present invention relates to a method and apparatus for removing filament bobbins from a filament winding apparatus. In such a Filamentaufwickelvorrichtung several empty tubes for filament coils are successively strung on a take-up shaft. On each empty tube, a filament spool is wound by rotating the take-up shaft. All arranged on a take-up shaft filament coils form a so-called Doff. To remove the filament from the take-up shafts so-called doffer be used. The doffer usually have a removal mandrel, which is so long that the wound on the take-up Doff can be removed as a whole and optionally provided with a further mandrel, the empty tubes for a wound doff filament bobbins using the doffer and can be pushed onto the take-up shaft , The invention particularly relates to ceiling-mounted doffer, because they are designed to save a lot of space than floor-mounted doffer. In addition, a minimized floor silouette is created in ceiling-guided doffers, so that sufficient space is created in the floor area to install modern safety technology. Also, ceiling-mounted doffers allow the operator to rest during the reciprocation of the doffer close to the Filamentaufwickelvorrichtung.

It is therefore a first object of the invention to provide a device for removing filament bobbins, with which a large number of filament bobbins can be transported away from the Filamentaufwickelvorrichtungen in a short time.

Also known are to increase performance Aufwickelvorrichtungen with paired juxtaposed winding rollers, so-called Twin-Winder. These pairs of juxtaposed winding shafts rotate generally in opposite directions, so that the winding direction of Fila ment coils of a juxtaposed Filamentspulenpaars is opposite to each other. For storage of the filament bobbins, however, it is desirable that all stored filament bobbins have the same winding and unwinding direction or that the thread ends are mounted the same.

The second object of the invention is thus to provide a method and an apparatus for the removal and sorting of filament spools, in which the filament spools are brought into a concurrent orientation of the winding and unwinding.

These objects are achieved by a method according to claim 1 and by an apparatus according to claim 4 in an inventive manner. The subclaims relate in part to advantageous and in part self-inventive developments thereof.

The basic invention is the removal device, ie a doffer with the features of claim 4. The removal device has two axially parallel removal mandrels. Each removal mandrel is so long that it can absorb a complete doff from a take-up shaft of the filament take-up device in a working stroke and can be transported away from the filament take-up device. Since the doffer or the removal device receives a complete doff on each of the two removal mandrels, two doffs can be removed from the actual production area of the filament take-up device in one transport cycle. In this way, a very rapid emptying of the finished produced filament spools from the respective take-up shafts is possible. Since in modern production facilities a variety of take-up shafts is always arranged side by side and usually two rows of juxtaposed winding waves are arranged opposite each other, a tram for the doffer or removal devices is released between these two rows of take-up shafts. In order to keep the space requirement as low as possible, this tramline is designed to be relatively narrow, so that, as is often the case with twin-Winder systems, a removal device fills the width of the tramline. If several removal devices are driving in a tram, These can only drive serially and not in parallel because of the above-mentioned narrowness. Since the number of Dofferje tramline can not be increased arbitrarily, the inventive removal devices usually allow a doubling of abzutransportierenden amount finished filament wound coils while maintaining the number of removal devices per tramline.

In a preferred embodiment, the axial transverse distance between the removal mandrels of a removal device is adapted to the axial distance between two winding shafts of the filament winding device arranged next to one another. Such an adaptation makes it possible to grasp two complete doffs of two juxtaposed winding shafts in a single stroke and then transport them away through the tramline in a single stroke.

In a further preferred embodiment, the removal device is configured T-shaped. A vertical pillar carrying the removal mandrels forms the longitudinal limb of the T-section. The vertical column is designed as slim as possible and space-saving. The T-bar forms a vertically movable on the column carriage, which in each case supports a removal mandrel on two opposite sides of the column. The removal mandrels protrude in parallel in one direction from the vertical column. The T-transverse leg of the two removal mandrels is vertically movable along the T-longitudinal leg. In this way, the Entnahmmedome can be moved in the Filamentspulenentnahme to the respective height level of the take-up shafts, take the doffs with the finished wound filament spools and then moved to that height, which is favorable for removal.

In an advantageous embodiment, the removal device is designed such that the removal mandrels can pivot together into a first functional position, their so-called. Picking position transversely to the longitudinal direction of the tram. For this purpose, the removal mandrels can be pivoted in both directions towards the respective take-up shafts, which in turn guide the tramline to both Side seams. In this transverse to the tramline receiving position the removal mandrels then line fleisches run side by side to their associated take-up shafts to hold the filament spools can.

From the receiving position, the removal mandrels can be pivoted into a second functional position, the so-called transport position. In this transport position, the removal mandrels in the longitudinal direction of the tramline. Since the removal mandrels protrude in their transport position in the longitudinal direction of the tram, a gap between the removal device with the filament spools and the end faces of the take-up shafts is released on both sides of the removal device. In this way, a collision of the removal device and the fully wound filament spools with persons or objects in the tram is effectively prevented. In this connection, it is advantageous if the filament spools are moved for removal through the tramline to the upper end of the vertical column, so that the space between the vertical column supporting the sled with the removal mandrels at its upper end and the end faces of the take-up shafts is so large is that an operator can stand between them safely. This is necessary, for example, if the assembly of the take-up shafts with teaching sleeves takes place manually after the removal of completely wound filament spools in the usual way.

For reasons of stability of the advantageous to design the removal device with respect to the vertical column axisymmetric. In this way, the loads and forces occurring on both sides of the vertical column are largely identical. Also, this symmetrical structure favors the sufficiently large dimensioning of the security rooms left and right of the removal device when removing the filament spools from the tramline.

In addition to the removal of filament spools from conventional Singledorn winders, the device according to the invention is also suitable for the removal of filament spools from Filamentaufwickelvorrichtungen with paired opposing Aufwickelwellen, so-called twin Windern. Here, the center distance of the removal mandrels is adapted to the center distance of the take-up, so that the removal device can remove both doffs from the take-up shaft pair of the twin-winders in one operation.

Since in the twin-winders the take-up shafts usually rotate in opposite directions to each other, the filament spools wound on each take-up shaft have a different winding and unwinding direction. In order to spend all the filament spools in the same winding and unwinding direction, the method according to the invention and the device according to claims 9 and 10 are used.

According to the method according to the invention, the filament bobbins wound up on a winding shaft pair are picked up by means of the two removal mandrels of the removal device, that is to say the doffers with two removal mandrels in one working stroke and are moved away from the filament winding device. In this way it is possible to equip both take-up shafts immediately with empty tubes for further filament spools. The filament bobbins are moved from the Filamentaufwickelvorrichtung in a sorting device in the second process step. In the sorting device, a sorting frame with two sorting mandrels is provided. On a sorting mandrel this sorting rack a complete Filamentspulendoff is postponed. The second sorting mandrel initially remains empty. The remaining second Filamentspulendoff is pushed onto a buffer mandrel of another auxiliary frame. Once both doffs are pushed onto the mandrels, the racks are pivoted against each other so that the buffer mandrel with the filament spools of the aforementioned empty sorting mandrel faces a sorting rack. In a fifth method step, the filament bobbins are pushed by the buffer mandrel of the auxiliary frame on the empty sorting mandrel of the sorting rack and then hang in pairs side by side on the adjacent sorting mandrels of the sorting rack. Since both Filamentspulendoffs were pivoted before pushing on the sorting mandrels of a sorting frame by 180 ° from each other, they have the same up and Abwickelrichtung in the final sorting position.

It is advantageous to split the filament bobbins of two Filamentspulendoffs when sorting into multiple subsets. For this purpose, instead of the auxiliary frame as combined sorting and separating frame provided with a plurality of superposed Sortierdornpaaren. If such a sorting and separating rack is used instead of the auxiliary rack, one doff each is pushed onto a sorting mandrel of the sorting rack and onto a sorting mandrel of the sorting and separating rack. In this case, the sorting mandrels are selected such that, after the pivoting of the sorting mandrels in the fourth method step, the respective sorting mandrel of one frame, which is in each case suspended with the filament bobbins, faces the respective empty sorting mandrel of the other frame. By a mutual displacement of the filament spools or of subsets of the filament spools on the sorting mandrels, all filament spools again have the above-mentioned identical winding and unwinding direction.

It has proved to be particularly advantageous to associate a sorting rack with a pair of sorting mandrels with a combined sorting and separating rack with two superimposed pairs of sorting mandrels. In this way, two Filamentspulendoffs can be divided into four half Filamentspulendoffs and the filament coils are then separated to save time.

Based on the illustrations in the drawing figures, the invention will be further explained. Show it:

1 is a perspective view of the inventive removal device,

 FIG. 2 is a front view of the removal device shown in FIG. 1; FIG.

 FIG. 3 shows the removal devices shown in FIG. 2 with removal mandrels moved completely upwards, in pairs, FIG.

 4 is a layout sketch of a Filamentaufwickelvorrichtung, a removal device and a sorting device after the removal of two Filamentspulendoffs from a Aufwickelwellenpaar,

 5 shows the illustration from FIG. 4 with the removal device moved to the sorting device, FIG.

6 the removal of the first Filamentspulendoffs in a sorting rack, 7 shows the second Filamentspulendoff prior to its removal into a sorting and separating rack,

 8 shows the rectification of the filament spools in the same winding and unwinding direction with simultaneous reintroduction of the emptied removal device into the filament winding device,

 9 shows the separation of the filament bobbins introduced into the sorting device into two halved doffs,.

 10 shows the sorter relative to the sorting frame vertically moved sorting and separating frame,

 11 shows the sorting and separating rack completely loaded with two halved doffs on each level,

 Fig. 12 compared to the sorting frame by 180 ° pivoted sorting and

 Separation rack and

 Fig. 13, the separation of the filament coils.

The removal device 1, which is also referred to as a doffer, essentially consists of a vertical column 2 and two axis-parallel, substantially horizontally extending removal mandrels 3. On each removal mandrel 3, a doff consisting of sixteen filament coils 4 is mounted. The sixteen filament bobbins 4 on a removal mandrel 3 thus form a doff.

Furthermore, the removal device 1 has a drive motor 5 with which the removal device 1 along a ceiling-side rail in the corresponding machine hall to the individual winding shafts 6 of the filament winding device and to a sorter 7 is movable. Finally, the removal device 1 has a servomotor 8 with which the filament bobbins 4 lying on the removal mandrels 3 can be moved vertically along the vertical column 2 and which drives the loading and unloading devices of the removal mandrels 3. From the illustration of FIG. 2 it can be seen that the removal mandrels 3 are moved vertically away from the drive motor 5 downwards in order to remove the fully wound filament bobbins 4 from the take-up shafts 6. 3, however, shows the transport position, in wel- rather, the filament spools 4 are moved away from the filament take-up device to the sorter 7.

It can be seen from the representation of FIGS. 2 and 3 that the removal device 1 is a T-shaped structure. The vertical column 2 forms the vertical T-foot, while the servomotor 8 and the removal mandrels 3 carrying carriage forms the T-transverse leg. From the representation of Fig. 2 and Fig. 3 it can be seen that the removal device 1 is very narrow. The removal mandrels 3 are arranged on opposite sides of the vertical column 2 and are moved in the axial direction very close to each other. Between the filament coils 4 suspended on the removal mandrels 4, only a small clearance is left free in order to prevent self-collision of the lateral surfaces of the filament coils 4 with one another.

In Fig. 4, a plurality of winding shafts 6 of a Filamentaufwickelvorrichtung are again shown schematically. The take-up shafts 6 are arranged in pairs. 4 shows in turn a removal device 1 with two removal mandrels 3. Each removal mandrel 3 carries sixteen filament bobbins 4, the sixteen filament bobbins 4 each forming a doff.

Fig. 4 shows the removal device 1 in its transport position. In the transport position of the removal device 1, the central longitudinal axis of the removal mandrels 3 in the discharge direction 11, wherein the discharge direction 11 corresponds to the longitudinal direction of the formed between the opposite take-up shafts 6 of the twin Winder 9 tramline. From the illustration of Fig. 4 it is further apparent that in the illustrated transport position between the removal device 1 and the end faces of the take-up shafts 6 each have a large side strip is kept free, so that the removal device 1 in its transport position, the width of the end faces of the take-up shafts 6 or the twin-Winder 9 formed lane far from exploiting space. Rather, between the removal device 1 in the transport position and the Twin-Winder 9 safe operators back and forth run. From the representation of FIG. 4 it can be seen that the removal mandrels 3 are pivotable in the direction of rotation 10 to the take-up shafts 6 of a twin-winders 9 into a receiving position in order to receive the corresponding filament coils 4. In Fig. 8, this recording is the removal device 1 before grasping and removing the filament 4 of the take-up shafts 6 shown. In this receiving position, the removal device 1 almost fills the tramline formed between the twin winders 9 in the transverse direction. In particular, the take-up shafts 6 of the twin-winders 9 to be emptied are in alignment with the removal domes 3 of the removal device 1.

In the discharge direction 11, the removal device 1 leaves the Filamentaufwickel- device with the take-up shafts 6 and moves the filament coils 4 located on the removal mandrels 3 to the sorter 7. The sorter 7 in turn consists of a first sorting rack 12 and a second sorting and separating rack 13. The sorting rack 12 and the sorting and separating frame 13 have paired sorting mandrels 14th

After the removal device 1 has picked the two doffs of filament bobbins 4 with their removal domes 3, the removal mandrels 3 with the filament bobbins 4 are moved into the transport position shown in FIG. 3 and the removal device 1 moves along the hall ceiling to the sorter 7.

After reaching the sorting device 7 shown in FIG. 4 ff., The removal mandrels 3 are lowered again, as shown for example in FIG. 2. The removal mandrels 3 are lowered and pivoted and the sorting frame 12 is pivoted until the removal mandrels 3 and the sorting mandrels 14 are brought into a mutually aligned position. Then the removal mandrels 3 move in the direction of the sorting mandrels 14 and the filament coils 4 are moved by means of an ejector 15 in the direction of the sorting frame 12. The ejector 15 is divided into two parts in such a way that each removal mandrel 3 can be emptied separately from its filament coils 4. From the representation of FIG. 7, it can be seen that the removal device 1 initially moves on the right-hand side of the removal device 1. 3 mandated Filamentspulen 4 are moved to a sorting mandrel 14 of the sorting frame 12. Then, the removal device 1 is pivoted in the direction of the sorting and separating frame 13, there to empty the second removal mandrel 3 of the filament 4, by the filament 4 are pushed onto a sorting mandrel 14 of the sorting and separating frame 13.

It can be seen from the representation of FIG. 8 that the sorting rack 12 and the sorting and separating rack 3 are pivotable in such a way that their sorting mandrels 14 are aligned with one another. It can also be seen that the filament bobbins 4 are respectively pushed onto sorting mandrels 4 of the sorting rack 12 and the sorting and separating rack 13 which are not opposite one another, so that in the state pivoted relative to one another according to FIG. and separating frame 13 lined up filament 4 on the respective unoccupied, ie filament 4 free sorting mandrel 14 of the respective opposite frame using an ejector 15 can be pushed.

The sorting rack 12 and the sorting and separating rack 13, and thus also the filament coils 4 pushed thereon, are pivoted in relation to one another by 180 ° in FIG. While the filament spools 4 have due to the opposite direction of rotation of the take-up shafts 6 of the twin-Winder 9 on the removal device 1 an opposite winding and unwinding, is by the doffweise distribution of the filament 4 on the mutually 180 ° pivoted sorting frame 12 and sorting and Separation frame 13 ensures that the filament 4 now have the same winding and unwinding.

For the sake of completeness, it should be noted that in the basic form of the invention, instead of the combined sorting and separating frame 13, an auxiliary frame (not shown in the drawings) with only one buffer pin is provided. In its construction, this auxiliary frame corresponds to the half of the sorting rack 12 provided with the filament bobbins 4. Thus, the sorting device consists of a sorting frame 12 according to the drawing figures and an effective as an auxiliary frame halved sorting frame. This frame are opposite each other. From the auxiliary frame, the filament bobbins 4 must then be delivered to the empty sorting dome 14 of the sorting rack 12 in order to store the filament bobbins 4 on the sorting rack 12 so that all the filament bobbins 4 have the same up and down direction.

From the representation of FIG. 8, it can further be seen that, after the delivery of the filament bobbins 4 to the sorting device 7, the removal device 1 moves again to a pair of take-up shafts 6 in the filament winding device in order to remove the next wound filament bobbins 4.

9a shows the same view of the sorting device 7 as in FIG. 8. It can be seen from the representation of FIG. 9a that the two doffs of filament bobbins 4 illustrated in FIG. 8 are each divided in half such that one half of the filament bobbins 4 are on the sorting mandrels 14 of the sorting frame 12 and the other half of the filament spools 4 is pushed onto the sorting mandrels 14 of the sorting and separating frame 13. From the illustration of FIG. 9b, which shows the side view b from FIG. 9a, it can also be seen that the sorting and separating frame 13 has a further pair of sorting mandrels 14 in the vertical direction 16 below the sorting mandrels 14 that can be seen in FIG. 9a. FIG. 10 a corresponds to the plan view according to FIG. 9 a. It can be seen from the representation of FIG. 10b corresponding to the representation in FIG. 9b that the two pairs of sorting mandrels 14 are mounted on a slidable carriage 17 in the vertical direction 16 on the sorting and separating frame 13. By means of the carriage 17, the sorting mandrels 14 of the sorting and separating frame 13 can be moved in the vertical direction 16 such that once the upper and the other times the lower pair of sorting mandrels 14 are aligned with the sorting mandrels 14 of the opposite sorting frame 12. In the synopsis of Fig. 10b and Fig. 11b. It can be seen that after taking over each half a doff of filament 4 on the upper sorting mandrels 14 of the sorting and separating frame 13, the carriage 17 is moved in the vertical direction 16 up to the remaining half doffs of filament 4 on the lower pair of Sortierdor - 14 to take over. It can be seen from the representation of FIGS. 11b and 12b that the two doffs of filament bobbins 4 are each pushed in half onto the two pairs of sorting mandrels 14 of the sorting and separating frame 13.

From the comparative consideration of FIGS. 11 and 12, it can also be seen that the sorting and separating frame 13 and with it its sorting mandrels 14 can be pivoted away from the sorting frame 12 by 180 ° in order to separate the filament coils 4 on a coil holder 18. For this purpose, the carriage 17 in the vertical direction 16 is movable or the sorting and separating frame 13 or the bobbin holder 18 in the horizontal direction movable to distribute the individual filament 4 in the individual bobbin cases on the bobbin holder 18. The singling process can be explained directly from the comparative observation of FIGS. 12b and 13.

LIST OF REFERENCE NUMBERS

1 removal device

 2 vertical pillar

 3 removal mandrel

 4 filament coil

 5 drive motor

 6 winding shaft

 7 sorting device

 8 servomotor

 9 twin winder

 10 direction of rotation

 11 discharge direction

 12 sorting rack

 13 sorting and separating rack

14 sorting mandrel

 15 ejector

 16 vertical direction

 17 sleds

 18 bobbin holders

Claims

5 claims 1. A method for the removal and sorting of pairs of juxtaposed winding shafts (6) arranged one behind the other and wound in opposite directions filament bobbins (4) with the following process steps: In a first method step, both filament spools (4) arranged on the takeup shafts (6) of two parallel removal mandrels (3) are removed from the takeup shafts (6). In a second method step, the filament spools (4) are conveyed to a sorting device (FIG. 7), in a third method step, the filament spools (4) lined up on one removal arbor (3) are slid onto a sorting mandrel (14) of a sorting frame (12) and the filament spools (4) lined up on the other removal mandrel (3) Buffer mandrel pushed another auxiliary frame, in a fourth step, the sorting frame (12) and the auxiliary frame are moved so that they face each other so that the loaded with the filament bobbins (4) buffer mandrel of the auxiliary frame of the empty sorting mandrel (14) on the opposite sorting frame (12) and in a fifth process step the filament bobbins (4) arranged side by side in pairs next to one another on the sorting mandrels (14) of the sorting rack (12). 2. The method according to claim 1  characterized  in that the filament bobbins (4) of two filament spool ends arranged side by side on the sorting rack (12) are split into a plurality of sub-batches and slid onto sorting mandrel pairs (14) of a sorting and separating rack (3) arranged one above the other. 3. The method according to claim 2  characterized  the filament bobbins (4) are singled out of the sorting and separating frame (13). 4. Device for removing filament bobbins (4) from the take-up shafts (6) of a filament winding device, in particular also for removing filament bobbins (4) with a method according to one of claims 1 to 3  marked by  two axially parallel removal mandrels (3), each with such a large inherent length, that each individual removal mandrel (3) in a removal process a complete on a take-up shaft (6) wound doff filament coils (4) and transported away from the Filamentaufwickelvorrichtung. 5. Apparatus according to claim 4  marked by a axial distance of the removal mandrels (3) corresponding to the axial distance between two adjacent take-up shafts (6) such that all filament bobbins (4) wound on both takeup shafts (6) are grasped simultaneously in a removal operation. 6. Apparatus according to claim 4 or 5  marked by  a symmetrical arrangement of the removal mandrels such that both removal mandrels (3) on two opposite sides of a vertical column (2) are mounted vertically movable. 7. Device according to one of claims 4 to 6  characterized,  in that the take-up shafts (6) of the filament take-up device are arranged side by side on a tramline for the removal device (1) and that the vertical column (2) with the removal mandrels (3) is rotatable such that the removal mandrels (3) of all the take-up shafts (3) 6) Grasp and remove filament bobbins on both sides of the tram. 8. Apparatus according to claim 7  marked by  a receiving position of the removal mandrels (3) in which the removal mandrels (3) and the take-up shafts (6) for removal of the filament bobbins (4) aligned with each other and a transport position of the removal domes (3), in which the removal mandrels (3) in the discharge line - (11) of the tram are pivoted. 9. Device according to one of claims 4 to 8  marked by a sorting device (7) having a sorting frame (12) with a pair of sorting mandrels (14) adapted in length and spacing to the removal mandrel pair (3) and having an auxiliary frame with a buffer mandrel adapted in its length to the removal mandrels (3), wherein the Sorting mandrels (14) of the sorting frame (12) and the buffer mandrel in a first functional position, each with a removal mandrel (3) are aligned to remove all filament coils (4) from the removal mandrel (3) and facing each other in a second functional position such that empty sorting mandrel (14) of the sorting frame (2) takes over all filament spools from the buffer mandrel. 10. Apparatus according to claim 9  marked by  a sorting device (7) with a sorting frame (12) and with a sorting and separating frame (13) with two superimposing sorting mandrel pairs (14), wherein the stacked sorting mandrel pairs (14) of the sorting and separating frame (13) are opposite the sorting mandrel pair (14). 14) of the sorting frame (12) are height-adjustable and wherein the sorting mandrels (14) of the sorting frame (2) and the sorting and separating frame (13) in a first functional position, each with a removal mandrel (3) are aligned around all the filament coils (4) from the removal mandrel (3) and in a second functional position facing each other with paired sorting mandrels (14) for sorting and separating the filament coils (4). 11. Device according to one of claims 10  characterized  that the two sorting mandrels couples (14) of the sorting and separating frame (13) relative to the sorting mandrel pair (14) of the sorting frame (12) are height adjustable.