DE10059993A1 - Mechanical handling system for bobbin exchange feed rack - Google Patents

Abstract

In a carpet manufacturing process, warping machine or beaming machine, empty bobbins are replaced by full bobbins using a mechanised process. Also claimed is an assembly in which a bobbin winding rack has a number of mechanically operated bobbin lifting spikes, one for each level of the rack. In a process to replace a full bobbin with an empty one, an empty bobbin spike is advanced horizontally from the reeling station (3) to a transfer position (10) where its presence is detected by a bobbin-change (38) sensor, and picked up and raised by a hoist (28) platform (36). The spike is then transferred to an intermediate handling unit (34) and thence to charge point where it is loaded with a full reel (11). The reel is then moved by an intermediate handling unit (33) to a vertical lift (29) and lowered to the spike starting point. At this level (36a) the loaded reel is then transferred (38) to the reeling station, where the thread of the new spool is spliced to that of the previous spool (11).

Description

Coil creels are frameworks or skeletal structures in which several horizontal layers on top of each other orderly coil places for receiving coils are arranged. The Fa those of these coils are processing devices such. B. Carpet knotting, slip or tree machines supplied.

The spool slots have previously installed mandrels, each of which two adjacent coil positions aligned V-shaped to each other own thorns. That is, the free ends of the diagonally upward Spikes are closer together than the fixed rear ends. To this This is to ensure that the threads running from the coils which are properly fed to the processing device. Each one of the two mandrels assigned to each other in pairs removes one winding bobbin, while at the adjacent bobbin place a full sequence Coil is provided, the thread with the thread of the winding bobbin  so connected, e.g. B. is knotted that when unwinding a continuous Transition from the currently unwinding spool to the following spool is ensured.

So far, the mandrels have been loaded with coils by hand. This active is associated with high physical exertion, because the Coils up to 6 kg and more can be heavy. Furthermore, be take into account that creel, which z. B. carpet weaving machines too are ordered, with carpet widths of about 6 m up to 1,500 threads Run carpet knotting machines. Consequently, such creels ne ben of the 1,500 bobbin slots with bobbins currently unwinding threads an additional 1,500 bobbin slots with the following bobbins. Derar term coil gates necessarily have next to the coil places several stacked work platforms. Here you have to the coils up to a height of about two meters and push on the thorns. It should also be noted that the Spu len are processed after about 1 hour to 1½ hours. So are at such a creel multiple operators permanently busy not only constantly filling full bobbins on the creel but also put these coils on the various work platforms to distribute and slide on the thorns here.

The efficiency is due to these previously purely manual activities the processing device, but especially that of carpet knots machines with larger widths, unsatisfactory.

If an article change is to take place, all are currently in one To wind up the spools as complete as possible to avoid larger quantities of thread, which are then stored or expensive must be disposed of. For this purpose, the operator persons when an article is phased out by hand in the creel Existing bobbins exchanged with each other so that the unwinding  each in pairs assigned to each other coils have the same amount of remaining thread. This activity is also time-consuming and painstaking. It is also at the discretion of the operators those who only visually see the remaining amounts of threads lock the bobbins and then replace them.

The object of the invention is based on the prior art based on a method for changing coils in a creel as well as a creel in the assignment to a processing device tion to create with those with a significant reduction in manual labor the efficiency of the processing device significantly improved who that can.

So far as the solution of the procedural part of this task is concerned this is seen in the features of claim 1.

The solution of the present part consists in the characteristics of the Pa claim 3.

The creel according to the invention has a spacing above one another horizontal levels of a framework or skeleton-like Several spool positions arranged next to each other for orientation from positively guided relocatable bobbins. The material of the Spu The carrier is preferably injection molded plastic. This is the weight of the Coil carrier relatively low. It can also be correspondingly easier the scaffolding can be laid out.

The main advantage of the invention is that the assembly of the Coil positions in the creel can be done predominantly by machine. here pneumatic, hydraulic or electrical energy can be used become. The manual activity of an operator can affect this restrict that after unwinding a thread from a bobbin of then empty bobbin horizontally moved to the transfer position  must be so that it can be moved along the creel Spool changer can be sensed and picked up by sensors. But also this manual activity can be mechanized if necessary the.

Another manual activity for an operator could be fer ner then arise when the mandrels of two unwind each other assigned coil carriers in the development phase V-shaped towards each other are arranged. In this case, it would be necessary for an operator those loaded from the transfer positions to the spool positions Turn the bobbin around a vertical axis into the V position and back the unwinding of a thread, the then empty bobbin again must turn back so that it then straight into the transfer posi tion can be pushed.

The invention allows this manual activity mechani can be siert, just like connecting the thread one Follow spool with the spool currently being unwound.

With the invention, the extremely high physical demands operator is completely eliminated. She doesn't need one heavy coils to lift more. Also the number of gates in a coil The total number of operators required can be drastic be lowered. In addition, the speed of loading the one individual bobbin positions compared to manual assembly considerably increases, so that the utilization of the ver assigned to a creel working device can be significantly improved.

The invention also creates the prerequisite for the height and also the length of a creel easily to the respective local Chen circumstances can be adjusted. Which are available the rooms or halls can thus be optimally used.  

In the invention, coils are no longer handled directly, son only indirectly because they are in an assembly station specially designed bobbins can be placed in the entire process can be integrated.

If a thread is unwound from a bobbin, the corresponding bobbin First, the carrier is moved horizontally into a transfer position, in which the now empty bobbin from the one that can be moved along the bobbin Spool changer can be sensed. This then takes the Coil carrier with the interchangeable platform on and on its level routes it through a storage space that has a storage function to a vertical conveyor, which is assigned to the creel. The Verti Kalförderer transports the bobbin down and passes it there to an intermediate conveyor, which is the bobbin of a component station feeds. Here is a new full spool on a mandrel of the Coil carrier placed. Then the loaded bobbin becomes fed to a vertical conveyor via an intermediate conveyor, the Coil carrier lifts up to the level in which the empty coil carrier was previously ger has found.

The empty and full bobbin carriers can only be from a vertical conveyor or can also be moved from several vertical conveyors. Furthermore, only one intermediate conveyor or several intermediate conveyors be set. The training of the intermediate conveyor depends on the respective depending on local conditions. How many vertical conveyors and intermediate conveyors? which are assigned to the creel depends on the respective pro production conditions and the coil throughput.

There is another one in the previously sensed level Storage function perceiving floor space from which the bobbin changer takes the loaded bobbin and trans it to the transfer position ported. From this the bobbin is moved to the bobbin place and  in terms of processing, aligned to the adjacent spool position. Ultimately, the thread of the new full bobbin with the thread of the neighboring beard currently unwinding spool connected, e.g. B. knotted.

If necessary, using the method according to the invention only one bobbin can be replaced. A variant is also conceivable ante, where several coil carriers are used simultaneously or in succession can be exchanged.

The features are seen in a further development of the method according to the invention of claim 2 before that the diameter of be in the creel sensitive coils by means of sensors provided on the coil changer posed, compared with each other and then the coils with each other be exchanged that each other in terms of processing the same amount of thread is present in the associated bobbin positions. On In this way, the thread quantities used are optimally used. The Storage and / or destruction of larger quantities of thread is not more needed.

This procedure is also done automatically with the help of the coils changer including at least one vertical conveyor leads.

All movements are in the invention according to claim 4 advantageously programmed in a computer so that human inadequacy can largely be excluded.

According to the features of claim 5, each bobbin has ger round base plate, the diameter of an imaginary, cylinder extending upward from the base plate is larger than that Contour of a coil located on the coil carrier. This design has the advantage that the coil carrier, especially on a horizontal Intermediate conveyor, can be transported butting without  that this has a negative impact on the location of the coils on the coils would have carriers

According to claim 6 is the edge of the base plate of a bobbin an upwardly extending bracket is provided. This is on the head side preferably rounded. It is formed in one piece with the base plate. Of this protrudes an obliquely upward thorn which is the up takes a coil. The spine has a cure adjacent to the console zen cylindrical length section and otherwise over the rest of the part a conical length. This training makes it possible probably take cylindrical as well as conically wound coils.

Around one end of a thread wound into a bobbin both during the Transports the coil to give a clear location as well as the possibility speed to open, this thread end at the bobbin slot automatically, z. B. with Air to be able to suck is a fixie according to claim 7 on the mandrel tion for one end of a thread wound on a bobbin. This fixation can preferably consist of a vertical slot on the front free end of the mandrel exist.

The design of the coil carriers below is particularly important the base plates according to the features of claim 8. Da is a rectangularly configured centric one below each base plate Projection provided. In the vertical central longitudinal plane of the mandrel this projection is crossed by a groove. With the help of the outer contours of the protrusion, the bobbin can be moved properly guided why every conveyor, the change platforms, the transfer positions, the Bunk places and the coil places with appropriate guidance can be provided. During the rectangular projection its function especially when moving via a horizontal intermediate conveyor and fulfilled in the creel, the groove serves as a guide for the relocation  forms, between the exchangeable platforms and a vertical conveyor as well between a vertical conveyor and an intermediate conveyor.

According to claim 9 are in the vertical central longitudinal plane of the mandrel diagonally offset from the base plate in front of two cutouts seen. These recesses are particularly ge through holes forms. Pins can engage in these holes, which the fault free displacement of the coil carrier at the transitions between one Intermediate conveyor and a vertical conveyor, a vertical conveyor and the Exchange platforms as well as the exchange platforms and the coil places serve.

According to the features of claim 10, the coils places and the transfer positions assigned to them by two contoured rails along the facing longitudinal sides det, which also connect vertical stands of the scaffold with each other. The long sides of the rails therefore act with the rectangular front jump together below the coil carrier. The transfer positions are z. B. defined by the fact that the distance between the rails is smaller there than the distance between the opposing outer surfaces of the front jumps of the bobbin. The coil carriers come to rest there and cannot get into the path of the bobbin changer.

At the coil places, the long sides of the rails with two are in Provide angular recesses offset from one another in the longitudinal direction, that the bobbin on the one hand flawlessly, and also slightly from Hand, can be moved in the longitudinal direction of the rails, and that on the other hand, it rotates about a vertical axis at the coil positions can be that two adjacent coil positions one V-shaped configuration of those mounted on the two coil carriers Ensure coils.  

If no V-shaped relative assignment is required in practice, the Cutouts in case of omission. The long sides of the rails then remain straight linig.

Both for visual monitoring of the coil positions in the creel also for manual relocation of the bobbin from the bobbin positions to the transfer positions, for a rotation of the coil carrier on the Bobbin positions and for connecting the threads of two unwinding mutually associated coils are according to claim 11 in a verti kalen parallel plane to the coil positions in a stacked arrangement walkable platforms provided. The platforms can be accessed by stairs be connected. A spiral staircase is preferred as the staircase used that takes up little space. Other ver are also conceivable types of binding, such as B. Elevators. The platforms have such an ab stood apart from each other that an operator stood upright without any problems After reaching the bobbin positions and there all necessary manual work can make.

In order to make it easier for the operators, the To reach higher coil positions is according to claim 12 provided that relocatable and locally displaceable on the platforms step platforms that can be fixed by entering are arranged. Such stu fenprodeste can in the longitudinal direction of the Platforms are moved. However, an operator steps on such step platform, the weight of the operator is sufficient to to fix the step platform in its respective position so that it is as long as can not shift as the operator on the step po least stands.

A vertical conveyor can correspond to the features of the patent Proverb 13 on one end or in the other length of the scaffold be provided. This not only makes it easier to integrate one  Vertical conveyor in the scaffolding, but also allows a drainage technology perfect transfer of the coil carriers from and to the Interchangeable platforms of the bobbin changer or to an intermediate conveyor. An intermediate conveyor is one in the area of the lower end Vertical conveyor arranged. Are z. B. provided two vertical conveyors, so preference is given to the coil carrier which transports upwards Vertical conveyor with an intermediate conveyor near the ground and the Vertical conveyors with a higher height horizontal intermediate conveyor coupled transfer technology. But it can other coupling methods are also used.

According to claim 14, each vertical conveyor has rolling or sliding relocatable lifting platforms. Roll in the event of a rolling shift expedient wheels from vertical guide rails, so that the Lift platforms can be moved without vibration. The lifting platforms are preferred under the influence of endless revolving drive means posed.

So that the bobbin from a downward-moving vertical conveyor on an assigned intermediate conveyor and one of the loaded ones Coil carrier transporting intermediate conveyor on an upward vertical conveyors that can be safely transferred is ge according to claim 15 at the transition between a vertical conveyor and an intermediate conveyor at least one displacement unit for the Coil carrier provided. This displacement unit moves the coils carrier between the vertical conveyor and the intermediate conveyor. The publisher device is preferably at least one pneumatically actuated Assigned piston-cylinder unit.

It is particularly advantageous if the exchange platforms of the coils changer transfer units for the bobbin are assigned (claim  16). Pneumatic are also preferably in these transfer units Integrated piston-cylinder units.

The transfer units consequently move the coil carrier transversely to that Displacement level of the bobbin changer. They preferably each have a central guide bar that engages in the grooves that the front Make jumps below the base plates of the coil carriers. Of Furthermore, the transfer units have vertically aligned pins, wel reach into the recesses on the base plates of the coil carriers and ensure their safe relocation.

So both when moving the bobbin between the changes platforms and the transfer positions as well as between the changes platforms and a vertical conveyor no problems occur after Claim 17 the removable platforms limited vertically displaceable. Here is z. B. provided that all removable platforms on a support bar are attached, the total using a, especially pneumatic acted upon, cylinder is limited vertically displaceable. To this In this way, the interchangeable platforms and thus also the platforms on them Chen transfer units are moved so that they with the pin of reach into the cut-outs in the base plates and out again these can be shifted out.

According to claim 18 it is provided that the spool changer Monitoring sensors are assigned to transfer positions. To do this There is a sensor on each level on the bobbin changer that drives by detects at the creel where there is an empty bobbin carrier ready for collection located. This sensor then conducts via the programmable control replacement of the empty bobbin with a loaded bobbin carrier.

According to the features of claim 19 are the coils changer also assigned the diameter of the coil determining sensors.  These sensors determine the diameter of the coils on End of a manufacturing process. This is the case, for example Case when an article change should take place. The diameters are then compared by the programmable logic controller and the coils are exchanged with each other so that all in each case, for example, in terms of unwinding associated with each other the same amount of thread is available for the remaining production of the respective manufactured device accomplish. In this way it can be ensured that after the Completion of the item leaves only small residual amounts of threads are present, which are then no longer stored in a complex manner must, but can be fed directly to the committee.

As an intermediate conveyor according to the features of the patent Say 20 such conveyor provided that have parallel idlers. These can be driven or not driven. At the edge are Füh tion rails provided for the bobbin. At this guide rail the rectangular protrusions below the base plates the bobbin.

Due to the stacking of the intermediate conveyor, at least in Area of vertical conveyors, it is also possible to adjust the height range next to the lower intermediate conveyor to be used by a spu lengatter another intermediate conveyor to an adjacent coils to lead gates.

The invention is illustrated below with reference to one in the drawings th embodiment explained. Show it:

Figure 1 is a schematic front view of a portion of a coil gate.

FIG. 2 is an enlarged view of a cross section through the creel of FIG. 1 in the vertical plane II-II in the direction of the arrows IIa;

Fig. 3 seen in a further enlarged scale a horizontal section through the representation of Figure 1 in the plane III-III in the direction of arrows IIIa, with the bobbin changer.

Fig. 4 in an enlarged view, section IV of Fig. 2;

FIG. 5 shows a bobbin in a side view;

Fig. 6 hen the bobbin of Figure 5 in the direction of arrow VI.

Fig. 7 hen the bobbin of Figure 5 in the direction of arrow VII.

Fig. 8 in a side view corresponding to the representation of Fig. 5 and a loaded bobbin

Fig. 9 seen the loaded bobbin of Fig. 8 in the direction of arrow IX.

In Figs. 1 to 4, 1 denotes a portion of a creel, which is assigned for example, a Teppichknüpfmaschine not shown in detail.

The coil creel 1 has a framework 2 designed in the manner of a framework or skeleton, in which a plurality of adjacent coil positions 3 are provided in horizontal planes which are spaced one above the other. The number of bobbin positions 3 depends on the number of needles in the carpet knotting machine. If there are 1,500 needles there, for example, the creel 1 comprises a total of 3,000 bobbin positions 3 . Of these, 1,500 bobbin positions 3 are each equipped with winding bobbins and the other 1,500 bobbin positions 3 are equipped with following bobbins (reserve bobbins).

Each coil space 3, will give 4 as can be seen Figs. 3 and seemed by two spaced apart extending rails 4, for example angle formed, at the same time the scaffold 2 with each other join and thus the stand 2 stiffen the vertical uprights 5 having , For this purpose, the mutually facing longitudinal sides 6 of the rails 4 are contoured. The coil positions 3 are limited by approximately triangular recesses 7 in the long sides 6 , the long sides 8 of which run parallel to one another. At the ends of the rails 4 , these projections 9 carry, so that there over transfer positions 10 are formed, which, like the coil positions 3 , are explained in more detail below.

Specially designed bobbins 12 , which are shown in more detail in FIGS. 5 to 9, are used for the correct orientation of bobbins 11 in the creel 1 and thus for the exact transfer of the threads from the bobbins 11 to the needles of the carpet knotting machine.

Each coil support 12 has a round base plate 13 . The diameter of an imaginary, extending from the base plate 13 Zy cylinder 14 is larger than the contour of a Chen on the coil support 12 full coil 11 ( Figs. 8 and 9).

An upwardly extending bracket 15 is provided on the edge of the base plate 13 . This console 15 is rounded on the head side. The side flanks merge into the base plate 13 via curves. A mandrel 16 protrudes obliquely upward from the bracket 15 . This has a cylindrical length section 17 adjacent to the bracket 15 . The rest of the length section 18 is slim conical. In this way, each mandrel 16 can receive cylindrical or conically wound coils 11 . The mandrel 16 is provided at the free end with a vertical end slot 19 for fixing one end of a thread of a bobbin 11 .

Below the base plate 13 , a rectangularly configured projection 20 is provided, the dimensions of which are smaller than the diameter of the base plate 13 . The projection 20 is traversed by a groove 21 extending in the vertical central longitudinal plane MLE of the mandrel 16. Furthermore, FIGS . 5 and 8 show that the base plate 13 is slightly recessed on the upper side, in order to have a coil placed on the mandrel 16 11 to ensure ground clearance to the base plate 13 . The Ausneh tion is designated 22.

The projection 20 on each coil support 12 serves to fix a coil support 12 at a coil position 3 , namely on the triangular recesses 7 . The mutually parallel long sides 8 of the recesses 7 then come into operative connection with the sides 23 of the projection 20 . In particular, the Fig. 3 indicates that two coils lying alongside one other places 12 of the mandrel extension 24 a V-shape are aligned with respect to each.

Furthermore, two recesses 25 are provided in the form of bores in the vertical central longitudinal plane MLE of the mandrel 16 in diagonal displacement edge side of the base plate 13 .

The coil carriers 12 are injection molded from a suitable plastic.

The distance between the longitudinal sides 6 of the rails 4 is dimensioned such that a coil carrier 12 can be displaced without constraint between a transfer position 10 and a coil position 3 ( FIG. 3).

In a vertical parallel plane to the coil positions 3 , platforms 26 which can be walked on are provided in the arrangement (FIGS . 2 and 3). These platforms 26 are connected to one another at one end of the creel 1 via a spiral staircase (not shown). Operators BP can move on the platforms 26 and, for example, move empty coil carriers 12 from the coil positions 3 into the transfer positions 10 . In addition, the operators BP can turn the bobbin 12 at the bobbin positions 3 from the linear displacement direction between the rails 4 about a vertical axis A in the unwinding position ( Fig. 3, reference numeral 24 ).

So that the operators BP can easily reach the higher-lying coil places 3 from each platform 26 , forcibly stepped platforms 27 are provided on the platforms 26 . Of thesestufenpo least 27 is indicated in the middle platform 26 of FIG. 2. The step platforms 27 can be fixed locally when entering by an operator BP.

As shown in FIGS. 1 and 3 also show, the stand 2 are frontally in Hin tereinanderanordnung two vertical conveyor 28, 29 is provided. The vertical conveyors 28 , 29 comprise guide rails 30 , on which lifting platforms 31 , in particular via wheels, can be displaced. The lifting platforms 31 are stored vertically via endless revolving traction means, not shown.

The vertical conveyors 28 , 29 are used to transport the empty and loaded coil carriers 12 between the various levels and two intermediate conveyors 33 , 34 equipped with parallel support rollers 32 and side guide strips 35 , which are provided in a stacked arrangement at the lower end of the vertical conveyors 28 , 29 . The second vertical conveyor 29 takes over the displacement of the loaded bobbin 12 from the lower intermediate conveyor 33 in the various levels and the 1st vertical conveyor 28 the transport of the empty bobbin 12 from the levels to the higher intermediate conveyor 34 .

The essentially horizontally extending intermediate conveyors 33 , 34 serve as connecting links between the two vertical conveyors 28 , 29 and an assembly station (not shown in the drawings) for the bobbin holder 12 with bobbins 11 .

In each case, in addition to the vertical conveyors 28 , 29, there are bays 36 , 36 a in the various levels of the coil gate 1 , which are formed by two rails 37 running parallel to one another at a distance from the projections 20 below the coil carrier 12 ( FIGS. 1 and 3).

As can also be seen from FIGS. 1 to 4, a column-like coil changer 38 with a number of interchangeable platforms 39 corresponding to the number of levels can be moved parallel to the coil positions 12 . This coil changer 38 is positively guided at the top and bottom. All interchangeable platforms 39 are attached to a support bar 40 ( FIG. 1), which can be displaced relative to the column 42 of the bobbin changer 38 by means of a cylinder 41 , which can be acted upon in particular pneumatically.

The interchangeable platforms 39 have transfer units 43 for the coil carriers 12 . This transfer units 43 include from the drawings not recognizable, in particular pneumatically actuated, Kol ben-cylinder units. Furthermore, they have vertical pins 44 on the frame side, which can engage in the cutouts 25 on the coil carriers 12 . In addition, the transfer units 43 have central guide strips 45 which engage in the grooves 21 of the projections 20 with sliding play.

In Fig. 1 it is also indicated that at the transitions between the vertical conveyors 28 , 29 and the intermediate conveyors 33 , 34 displacement units 46 are provided for the bobbin 12 . These publishers approximately 46 include, not shown, in particular pneumatically acted upon, piston-cylinder units, guide strips 45 and pins 44 for engaging in the grooves 21 or recesses 25 on the base plates 13 of the bobbin 12th

The creel 1 is assigned a programmable control not illustrated in the drawings, which ensures that the displacement of the empty bobbin 12 from the bobbin positions 3 to the loading station and the loaded bobbin 12 from the loading station to the bobbin positions 3 takes place automatically , To this end, the coil changer 38 is assigned sensors that are not shown in the drawings.

The change of an empty bobbin 12 against a loaded bobbin 12 is explained in more detail below.

If the thread is completely unwound from a bobbin 11 , the corresponding empty bobbin 12 according to FIG. 3 is rotated by an operator BP at the bobbin slot 3 about a vertical axis A such that the bobbin liner 12 is then removed from the bobbin slot 3 along the rails 4 can be moved to the transfer position 10 . The projection 20 on the coil carrier 12 slides between the rails 4 , while the underside of the base plate 13 slides on the rails 4 .

If the bobbin changer 38 then moves along the bobbin creel 1 , a sensor on the bobbin changer 38 detects the empty bobbin holder 12 in the transfer position 10 . The bobbin changer 38 stops. The interchangeable platforms 39 are then displaced vertically downward so far that, as can be seen in particular from FIG. 4 (but without a coil 11 ), the transfer unit 43 arranged in the plane then displaces the pin 44 below the coil carrier 12 and into a Can insert recess 25 below a base plate 13 . For this purpose, all interchangeable platforms 39 are raised vertically again. The transfer unit 43 then pulls the empty bobbin 12 onto the interchangeable platform 39 , where the bobbin 12 remains fixed in position by the transfer unit 43 .

The bobbin changer 38 then moves to the first vertical conveyor 28 . In the meantime, the lifting platform 31 assigned to it has been moved into the plane of the empty bobbin 12 . The transfer unit 43 on the interchangeable platform 39 moves the empty bobbin 12 onto the lifting platform 31 via the storey space 36 , the process possibly being carried out in two steps in the sense that after the first step the interchangeable platforms 39 are lowered again, the pin 44 is Transfer unit 43 moved back and then inserted into the other recess 25 of the base plate 13 by lifting the interchangeable platforms 39 . Then, as part of the second step, the empty coil carrier 12 can be moved onto the lifting platform 31 of the first vertical conveyor 28 .

The first vertical conveyor 28 now transports the empty bobbin 12 down to the intermediate conveyor 34 located higher up. The displacement unit 46 provided here moves the empty bobbin 12 onto the upper intermediate conveyor 34 . Since this in addition to the support rollers 32 has two parallel, spaced-apart guide strips 35 , these guide strips 35 now take the leadership of the bobbin 12 over the underside projection 20 and direct the bobbin 12 to the loading station.

At the transitions, the vertical conveyors 28 , 29 adjacent Füh approximately 35 is recessed over the width of a projection 20 to enable a transverse displacement.

A full bobbin 11 is pushed onto the bobbin 12 in the loading station. The loaded bobbin 12 is then moved to the second vertical conveyor 29 by means of the lower intermediate conveyor 33 . Here, the coil carrier 12 is moved onto the lifting platform 31 of the second vertical conveyor 29 by means of the provided displacement unit 46 . The lifting platform 31 then transports the loaded bobbin 12 into the plane where the empty bobbin 12 was found before. The transfer unit 43 on the exchange platform 39 of the bobbin changer 38 takes over the bobbin holder 12 in the manner described above and spends it on the bunk space 36 a to the transfer position 10 ( FIG. 4), where the bobbin changer 38 previously empty over its sensor Coil carrier 12 has determined. Here then again takes place by means of the transfer unit 43 on the changing platform 39 a displacement of the bobbin 12 to the bobbin place. 3 At the bobbin location 3 , the operator BP then only needs to turn the bobbin 12 about the vertical axis A into the V-position 24 to the adjacent unwinding bobbin 12 . Then who the two threads of the unwinding spool 11 and the following bobbin 11 connected to each other, for. B. knotted.

Further sensors not shown in the drawing on the coil changer 38 allow the diameter of the coil 11 in the creel 1 to be determined when an article is to be discontinued on the carpet knotting machine. Once the diameters have been determined, they are compared with one another in the computer. Thereafter, the bobbins 11 are replaced with the aid of the bobbin changer 38 and the vertical conveyor 28 , 29 with respect to the various bobbin positions 3 that two roughly associated bobbin positions 3 are approximately the same amount of thread as they are in the other one in pairs other assigned coil locations 3 exists. The remaining program of the carpet knotting machine can then be processed.

REFERENCE NUMBERS

1

creel

2

Scaffold v.

1

3

coils places

4

rails

5

Stand v.

2

6

Long sides of

4

7

Cutouts

6

8th

long pages from

7

9

Ledges

4

10

Transfer positions

11

Do the washing up

12

coil carrier

13

Base plate v.

12

14

cylinder

15

Console v.

12

16

Dorn v.

12

17

cylindrical length section v.

16

18

Longitudinal section v.

16

19

Slit on

16

20

Head start

13

21

Grooves through

20

22

Recess in

13

23

Pages from

20

24

Dorn extension

25

Recesses in

13

26

platforms

27

stepped platforms

28

1

, vertical conveyor

29

2

, vertical conveyor

30

Guide rails v.

28

.

29

31

lifting platforms

32

Idlers

33

.

34

33

intermediate conveyor

34

intermediate conveyor

35

Guide rails v.

33

.

34

36

floor seats

36

a bunk places

37

Rails on

36

38

bobbin changer

39

exchange platforms

40

Support bar f.

39

41

cylinder

42

Pillar v.

38

43

Transfer units

44

Cone v.

43

45

guide rails

46

shifting units
BP operators
MLE vertical median longitudinal plane v.

16

Claims (20)

1. A method for changing coils ( 11 ) mounted on positively displaceable coil carriers ( 12 ) in a coil gate ( 1 ) having several coil positions ( 3 ) arranged next to one another in several superimposed horizontal planes, in which at least one empty coil carrier ( 12 ) is first used its bobbin position ( 3 ) is moved horizontally to a transfer position ( 10 ), then in this transfer position ( 10 ) is sensed and recorded by a bobbin changer ( 38 ) that can be moved along the bobbin gate ( 1 ), and then one via a bunk space ( 36 ) Part of the coil gate ( 1 ) forming vertical conveyor ( 28 ) is fed from this to an intermediate conveyor ( 34 ) and transported by the horizontal conveyor ( 34 ) to a loading station, where a full spool ( 11 ) on a mandrel ( 16 ) Coil carrier ( 12 ) placed, then this loaded coil carrier ( 12 ) via an intermediate conveyor ( 3rd 3 ) fed into the creel ( 1 ) integrated vertical conveyor ( 29 ) and transported by it into the plane with the detected transfer position ( 10 ), and then the loaded bobbin ( 12 ) in this plane via a bunk space ( 36 a) taken from the bobbin changer ( 38 ), brought into the transfer position ( 10 ) and then shifted to the bobbin slot ( 3 ), where the thread of the new bobbin ( 11 ) is connected to the thread of an adjacent unwinding bobbin ( 11 ) , 2. Method according to claim 1, wherein the diameters of the coils (11) located in the bobbin creel (1) determined by means provided on the reel changer (38) sensors, compared with each other and thereafter, the coil (11) so interchanged, that in each case two Because the bobbin positions ( 3 ) assigned to one another in terms of unwinding technology have approximately the same amount of thread as the other pairs of bobbin positions ( 3 ) assigned to other unwinding technology. 3. Bobbin creel in association with a device, in particular a plurality of threads processing device, such as. B. a carpet knotting machine, a slip or a tufting machine which, in horizontal planes spaced one above the other of a framework or skeleton-like scaffold ( 2 ), has a plurality of adjacent coil positions ( 3 ) for orientation of positively displaceable coil carriers ( 12 ), the bobbin positions ( 3 ) assigned transfer positions ( 10 ) for the bobbin carrier ( 12 ), at least one vertical conveyor ( 28 , 29 ) as a link between the levels and at least one with a loading station coupled intermediate conveyor ( 33 , 34 ) and one along the Transfer positions ( 10 ) movable columnar coil changer ( 38 ) with a number of levels corresponding to the number of changing platforms ( 39 ). 4. coil creel according to claim 3, which a programmable memory controller is assigned. 5. Coil creel according to claim 3 or 4, wherein each coil support ( 12 ) has a round base plate ( 13 ), the diameter of an imaginary, from the base plate ( 13 ) extending upward cylinder ( 14 ) is greater than the contour of one on the coil support ( 12 ) located coil ( 11 ). 6. coil creel according to claim 5, in which the edge of the base plate ( 13 ) an upwardly extending bracket ( 15 ) is provided, from which an obliquely upwardly directed mandrel ( 16 ) protrudes, the one adjacent to the console ( 15 ) Has cylindrical length section ( 17 ) and is slim conical over the remaining length section ( 18 ). 7. Bobbin creel according to claim 6, wherein the mandrel ( 16 ) has a fixation ( 19 ) for one end of a thread wound on a bobbin ( 11 ). 8. coil creel according to claim 6 or 7, in which centrally below the base plate ( 13 ) a rectangularly configured, from a in the vertical central longitudinal plane (MLE) of the mandrel ( 16 ) extending groove ( 21 ) through projection ( 20 ) is provided. 9. coil creel according to one of claims 6 to 8, in which in the vertical central longitudinal plane (MLE) of the mandrel ( 16 ) in diagonal Ver offset edge side of the base plate ( 13 ) two recesses ( 25 ) are easily seen. 10. Coil creel according to one of claims 3 to 9, in which the coil positions ( 3 ) and their assigned transfer positions ( 10 ) are each formed by two, along the mutually facing longitudinal sides ( 6 ) contoured rails ( 4 ), which are also vertical stands ( 5 ) of the scaffold ( 2 ). 11. Coil creel according to one of the claims 3 to 10, in which walk-in platforms ( 26 ) are provided in a vertical parallel plane to the coil positions ( 3 ) in arrangement arrangement. 12. Coil creel according to claim 11, in which on the platforms ( 26 ) positively displaceable and locally fixable by stepping pedestals ( 27 ) are provided. 13. Coil creel according to one of claims 3 to 12, in which a vertical conveyor ( 28 , 29 ) is provided on an end face or in the longitudinal extension of the frame ( 2 ). 14. Coil creel according to one of claims 3 to 13, in which a vertical conveyor ( 28 , 29 ) has at least one rolling or sliding displaceable lifting platform ( 31 ). 15. Coil creel according to one of claims 3 to 14, in which at the transition between a vertical conveyor ( 28 , 29 ) and an intermediate conveyor ( 33 , 34 ) at least one displacement unit ( 46 ) for the coil carrier ( 12 ) are provided. 16. Coil creel according to one of the claims 3 to 15, in which the exchange platforms ( 39 ) of the bobbin changer ( 38 ) are assigned transfer units ( 43 ) for the bobbin carriers ( 12 ). 17. creel according to one of claims 3 to 16, in which the interchangeable platforms ( 39 ) are vertically displaceable to a limited extent. 18. Coil creel according to one of claims 3 to 17, in which the bobbin changer ( 38 ) the transfer positions ( 10 ) are assigned sensors monitoring. 19. Coil creel according to one of claims 3 to 18, in which the coil changer ( 38 ) the diameter of the coils ( 11 ) determining sensors are assigned. 20. Coil creel according to one of claims 3 to 19, in which two intermediate conveyors ( 33 , 34 ) are arranged in the area of two vertical conveyors ( 28 , 29 ) in two superimposed levels, have a plurality of parallel support rollers ( 32 ) and with the edge Füh guide rails ( 35 ) for the bobbin ( 12 ) are provided.