EP2673229B1 - Winding machine - Google Patents

Description

TECHNICAL FIELD OF THE INVENTION

The invention relates to winding machines in which mutually on at least two spindles a continuous Spulgut, in particular a thread, wire, tape, twist, etc., is wound into a coil. Furthermore, the invention relates to a method for operating such a winder.

STATE OF THE ART

Spooling machines are known in which, for example, a continuous production process, a Spulgut is continuously fed to the winder and then (with or without sleeve) is wound on a spindle to form a coil. This coil can then be transported and used in a subsequent process for the further processing of Spulguts. The winding of the coil takes place on a spindle, which can be driven to produce the winding movement itself. Alternatively, it is known to generate the rotational movement of the coil by a friction drive, in particular a drive roller radially pressed onto the lateral surface of the coil. During winding, the winding material is reciprocated by a traversing device in the direction of the longitudinal axis of the spindle, wherein the traversing device is located slightly in the course of the winding material before or upstream of the coil. By coordinated by means of a control unit superimposition of the rotation and traversing movement forms a spatial coil with increasing diameter in the course of the winding cycle.

Also known is the use of winding machines, which are equipped with at least two spindles, which alternately used in a working position for winding coils can be. It is possible that in this case a single traversing device is responsible for winding coils on both spindles. Upon reaching a certain amount of Spulguts on the spindle, which is currently in use for winding, so in a working position, this spindle is moved to a rest position. Automatically or under the direction of an operator, the further tapered material to be taken from the other spindle, which is now in the working position, or a sleeve arranged on this other spindle. After this position change, the finished wound coil is removed manually or automatically from the first spindle located in the rest position. For the transfer of the spindles between the working position and the rest position, the at least two spindles are often held rotatably on a turntable or revolver, wherein the axis of rotation of the spindles and the revolver are oriented parallel to each other. About a rotation of the turntable, the positions of the spindles can be changed alternately.

• einerseits der Abstand der Spindeln zur Verringerung der Baugröße der Spulmaschine möglichst klein zu halten ist,
• aber andererseits der Abstand der Spindeln möglichst groß zu wählen ist, um eine möglichst große Zeitspanne vorzugeben, um die Entnahme der fertig gewickelten Spule zu ermöglichen, ohne dass es zu einer Kollision der Spulen kommt.

A corresponding winding machine is from the patent DE 102 23 484 B4 the applicant known. The patent is dedicated to the change process, here the transfer of the Spulguts from the first to the second spindle. Here, a fixing winding and a reserve winding are wound outside the laying width before the start of the actual winding process. Does the traversing a Kehrgewindewelle, the traversing yarn guide the traversing device can not be arranged without structurally complex additional measures in the Nutgestaltung the Kehrgewindewelle outside the laying width. The patent proposes to shift the traversing device via a displacement device parallel to the longitudinal and rotational axis of the spindles such that the Spulgut outside the laying width can be applied to the spindle or sleeve and the fixing and reserve winding can be formed. In the displacement device used here is a pneumatically actuated piston / cylinder unit, which can be pneumatically actuated via a valve and an associated control unit to an arbitrarily arbitrary date. Before the finished wound bobbin is removed from the winder, the finished wound bobbin is in the rest position and the bobbin with build-up diameter is in the working position. Should be made possible that the finished wound coil is removed in the rest position at the latest from the winder, even if the other coil is wound in the working position, the distance between the coils must at least equal to the diameter of the finished wound coils, is excluded, that the lateral surface of the coil in the working position with increasing diameter to the plant the lateral surface of the finished wound coil comes in the rest position. If the distance of the spindles chosen smaller, this means that the finished coil must be removed in the rest position by the operator or automatically faster, namely before fully winding the coil in the working position. If the finished wound coil is not removed in time, the two coils collide and the winder stops. For the structural design of the winder, here in terms of the distance between the two spindles, thus a conflict of objectives is given by

• on the one hand the distance of the spindles to reduce the size of the winding machine is to be kept as small as possible,
• but on the other hand, the distance of the spindles is to be selected as large as possible to specify the largest possible period of time to allow the removal of the finished wound coil, without causing a collision of the coils.

With increasing feed speed of the Spulguts the Zelkonflikt is further aggravated by the faster construction of the coils.

The publication GB 1 159 282 A relates to a winding machine for the alternating winding of continuously supplied winding material on two spindles. The spindles are arranged side by side and their longitudinal axes are aligned parallel to each other. Each spindle is arranged on an arm which can be pivoted about an axis parallel to the longitudinal axis of the spindle. To wind the Spulguts on a spool, the arm is pivoted so that the spindle or the spool is in frictional contact with a drive roller, whereby the rotation of the spool for winding the Spulguts is achieved on the spool. When the bobbin is finish wound, the bobbin is moved by pivoting the arm to a position where the bobbin is no longer in contact with the drive roll and can be removed from the arm. After the removal of the coil, the arm can be pivoted again in the winding position for winding Spulgut on the coil.

When from the publication US 3,921,922 A known winding machine is continuously supplied Spulgut alternately wound on two coils, which are arranged on associated spindles. The spindles are arranged on a rotatable spindle carrier, wherein their longitudinal axes are aligned parallel to each other and parallel to the axis of rotation of the spindle carrier. In the changing operation, the spindle carrier is rotated about its axis of rotation such that a finish-wound spool on one of the spindles is no longer in contact with a drive roller from which the spool is driven onto the spool during winding of the spool material and transferred to a take-off position , At the same time an empty sleeve on the other spindle is brought by the rotation of the spindle carrier in contact with the drive roller, whereby the winding of the coil starts on this other spindle. In the withdrawal position of the finished wound bobbin brought about with the rotation of the spindle carrier, it is removed from the spindle via a gripping element.

In a winder, as they are from the pamphlets DE 195 05 838 A1 and WO 2008/095982 A1 is known, Spulgut is alternately wound on two arranged on associated spindles coil. The spindles are arranged on a turntable, wherein the axis of rotation of the turntable and the longitudinal axes of the spindles are aligned parallel to each other. By turning the turntable, the spindles are alternately in a winding position, is wound in the Spulgut on the spool, and transferred to a rest position. In the rest position, a ready-wound spool is pushed from its spindle to a doffer or storage device on which the finished wound spool is stored until the spool is manually or automatically removed.

OBJECT OF THE INVENTION

The invention has for its object to provide a winder, which in a compact design sufficient time for the removal of a finished wound coil (and possibly the placement of an empty sleeve) is available and / or reduces the risk of collision of the lateral surfaces of the coils , Furthermore, the invention has the object to provide a method for operating a winder, which is improved in terms of the exchange and removal process.

SOLUTION

The object of the invention is achieved with a winder with the features of independent claim 1. Further embodiments of a winding machine according to the invention will become apparent according to the features of the dependent claims 2 to 10. The object of the invention is further achieved by a method having the features of claim 11. Further embodiments A method according to the invention results according to the features of the dependent claims 12 to 20.

DESCRIPTION OF THE INVENTION

The present invention eliminates for the first time the dependence of a predetermined, dependent on the feed speed period for a take-off of a finished wound coil in a rest position of the winder of the distance of the spindles from each other. This is made possible according to the invention in that the coils are arranged in a removal position of a finished wound coil brought about by a displacement device without overlapping of their axial regions. Quite possible here is that from the Spulgut-winding projecting end portions of the sleeves have a certain overlap - it is crucial that the Spulgut-winding of the coils have no overlap. Thus, according to the invention, the finished coil on the one hand and the coil under construction on the other hand axially "past each other", whereby the possibility of a collision of the two coils is completely excluded. Alternatively or cumulatively to the advantage of a collision avoidance, the displacement of the finished wound coil caused by the displacement device can be advantageous for the removal process, since an extended period of time is provided for the removal process and / or by means of the displacement the finished wound coil from a main working plane Winding machine for the winding of the same is shifted, where the coil u. U. also better for the operator or an automatic removal device is accessible and / or the risk of injury is reduced. It is also possible that the coil already covers a partial path for removal in the direction of further storage or transport means via the displacement.

In a further embodiment of the invention is caught on a spindle, in particular directly on this itself or on a sleeve through which the spindle extends in a working position of this spindle a Spulgut and / or wound. In this case, well-known from the prior art embodiments are conceivable in which the working position, ie the position of the coil during the winding process, changed during the winding cycle according to the increasing diameter.

Simultaneously with the catching and / or winding of the spool on the spindle in the working position, a finished spool is wound on another spindle which is in its rest position Spool removed from the winder, which can be done manually by an operator or at least partially automated. The spindles are alternately in the working position and the rest position can be brought, with it is quite possible that additional positions, such as a waiting or intermediate position, are temporarily taken.

By means of the displacement device, a finished wound coil can be displaced in the direction of its axis of rotation, as a result of which the finished wound coil is transferred from a winding position into the removal position. The displacement of the displacement device is greater than the extension of the coil in the direction of its axis of rotation, that is larger than the laying width of the coil.

For the structural design of the displacement device and ensuring the required displacement of the finished wound coil, there are different possibilities. According to a particular embodiment of the invention, the displacement device displaces the coil relative to the spindle. For example, the coil relative to the spindle have a degree of freedom in the direction of the axis of rotation of the coil. This degree of freedom can be fixed during the winding process of the bobbin, while this degree of freedom is used via the displacement device for bringing about the removal position by moving the bobbin relative to the spindle. In particular, in this case, the coil slides along the lateral surface of the spindle.

For an alternative embodiment of the invention, the displacement device displaces the coil together with the spindle, so that here the spindle itself has a degree of freedom with respect to the winding machine in the direction of its longitudinal or rotational axis. For example, the spindle can be held with such a degree of freedom with respect to a turntable or an otherwise formed turret, which is then used by the displacement device. It is also possible a kind of telescopic design of the spindle.

In principle, the use of any displacement device is conceivable. In one embodiment of the invention, an actuatable via a control unit Axialaktuator is used, the actuation path preferably corresponds to the displacement path of the coil for bringing the removal position. For example, an actuator may be used in training as a pneumatic piston / cylinder actuator with associated valves and associated electrical control unit, as this (but for a different purpose) in DE 102 23 484 B4 to describe just one example of the many different implementation possibilities for the displacement device.

Compared to a housing-fixed frame of the winder, the spindles according to the invention, on the one hand in a transverse plane to the axes of rotation of the coils or spindles between the working position and the rest position moves, which is preferably done by the rotation of the turntable or a revolver (hereinafter turret). On the other hand, a fully wound coil is displaced in one direction from a winding position to a removal position by the displacement device, this direction being oriented parallel to the axes of rotation of the spools or spindles. The aforementioned two movements can be separated in time and then actuated together, wherein the displacement movement can take place before or after the rotation of the turntable or the revolver. Preferably, the two movements take place at least partially simultaneously, whereby a time saving is possible even at low movement speeds and accelerations.

Furthermore, the invention proposes that the displacement device can be actuated in a motion-controlled manner in accordance with a rotational movement of the revolver. It is possible that, according to time specification via a rotation angle sensor that detects the rotation of the revolver, or one operated by rotation of the revolver switch the displacement device is controlled. It is also conceivable that a control signal for rotating the revolver is used simultaneously to control the displacement device. If an additional actuator for the formation of the displacement device is to be completely saved, the motion control by the rotational movement of the revolver may consist in that the displacement movement is coupled directly to the rotational movement of the revolver. This can be done by mechanical coupling, for example by branching the mechanical drive power of a common drive unit for the turret and the displacement device. This also includes an embodiment in which the rotary movement of the turret is converted into the displacement movement via a cam disc or cam disc, so that the displacement device is formed with the mechanical coupling through the cam disc or cam disc.

In particular, for embodiments in which the coils are displaced relative to the spindle via the displacement device, is for a further embodiment of the winder proposed that in the removal position, in which the coils are arranged by the displacement device without overlapping their axial regions, the associated spindle extends only partially through the finished wound coil. The extension of the spindle through the spool provides the removal path for the removal of the spool from the spindle. Thus, the shortening of the extension of the spindle can be reduced by the finished wound coil removal effort.

In a further embodiment of the invention, the displacement device can be used multifunctional: for this embodiment, not only the change of the operating position of the coil from the winding position to the removal position is possible via the displacement device. Rather, the spool can be displaced via the displacement device into an operating position (possibly deviating from a winding position, a possible waiting position and / or the removal position), in which the material to be spooled interacts with a cutting device and / or a catching device for the winding material. Put simply, by means of the displacement device, for example, the winding material upstream of the jacket surface of the finished wound bobbin can be pressed against a knife designed as a cutting device, whereby the material to be cut is then severed. The same applies to a capture device by means of which the Spulgut is caught in the spindle or rewinding coil. Alternatively or additionally, it is possible that the displacement takes place by the displacement device to an operating position in which a fixing and / or reserve winding is formed. This embodiment is based on the solution according to DE 102 23 484 B4 where the traversing device has to be moved to form the fixing or reserve winding. By using a u. U. corresponding actuator, but use of the displacement device, a comparable effect can be achieved because with the displacement of the coil, the Spulgut can be taken in an axial region of the spindle on which a new coil to be wound, in which then the preparation of the fixing or reserve winding can be done. With regard to further details on the basic design of the fixation and reserve wrapping and the control measures to be taken on DE 102 23 484 B4 directed.

In a method according to the invention, a fully wound coil is displaced via a displacement device into a removal position in which the axial region of this finished wound coil has no overlap with the axial region of a coil to be wound on the other spindle.

Advantageous developments of the invention will become apparent from the claims, the description and the drawings. The advantages of features and of combinations of several features mentioned in the introduction to the description are merely exemplary and can come into effect alternatively or cumulatively, without the advantages having to be achieved by embodiments according to the invention. Further features are the drawings - in particular the illustrated geometries and the relative dimensions of several components to each other and their relative arrangement and operative connection - refer. The combination of features of different embodiments of the invention or of features of different claims is also possible deviating from the chosen relationships of the claims and is hereby stimulated. This also applies to those features which are shown in separate drawings or are mentioned in their description. These features can also be combined with features of different claims. Likewise, in the claims listed features for further embodiments of the invention can be omitted.

BRIEF DESCRIPTION OF THE FIGURES

Fig. 1

zeigt schematisch eine Spulmaschine gemäß dem Stand der Technik in einer Vorderansicht.

Fig. 2

zeigt die Spulmaschine gemäß Fig. 1 in einer Draufsicht.

Fig. 3

zeigt stark schematisch eine erfindungsgemäße Spulmaschine in einer Draufsicht, wobei sich eine fertig gewickelte Spule in einer Warteposition befindet.

Fig. 4

zeigt stark schematisch eine erfindungsgemäße Spulmaschine in einer Draufsicht, wobei sich eine fertig gewickelte Spule in einer Entnahmeposition befindet.

Fig. 5

zeigt ein stark vereinfachtes Blockschaltbild für ein erfindungsgemäßes Verfahren.

In the following the invention will be further explained and described with reference to preferred embodiments shown in the figures.

Fig. 1

schematically shows a winding machine according to the prior art in a front view.

Fig. 2

shows the winder according to Fig. 1 in a top view.

Fig. 3

shows very schematically a winding machine according to the invention in a plan view, wherein a finished wound coil is in a waiting position.

Fig. 4

shows very schematically a winding machine according to the invention in a plan view, wherein a finished wound coil is in a removal position.

Fig. 5

shows a highly simplified block diagram for a method according to the invention.

DESCRIPTION OF THE FIGURES

Fig. 1 and 2 schematically show a winder 1. The winder 1 has a turntable or a revolver 2, which relative to a support structure 3 of the winder 1 about an axis of rotation, which is vertical to the plane according to Fig. 1 oriented, is rotatable about a suitable drive unit. The turret 2 carries spindles 4, 5, the rotation and longitudinal axes 18, 19 also vertically to the plane according to Fig. 1 are oriented and arranged diametrically at the same distance on opposite sides of the axis of rotation of the turret 2. On the spindle 4 is a finished wound coil 6, preferably with a sleeve 7. The finished wound coil 6 has a diameter D.

On the spindle 5 is a coil 8, possibly also with a sleeve 9, in the structure of increasing diameter d. The tapered winding material 10 is fed to the spool 8 via a traversing device 11. Here, in a conventional manner, the distance of the traversing device 11 from the longitudinal and rotational axis of the spindle 5 on the winding cycle with increasing diameter d change by the traversing device 11 or the spindle 5 a corresponding degree of freedom for a relative displacement in the plane according to Fig. 1 has. According to Fig. 1 is the coil 6 in a rest position 12, in which the coil 6 by an operator or at least partially automated from the spindle 4 must be removed. Possibly. can be plugged into the rest position 12, a new sleeve 7 on the spindle 4. On the other hand, the spool 8 is in a working position 13, in which the Spulgut 10 is caught by the spindle 5 or possibly a sleeve 9, a reserve and / or fixing winding is generated and / or the actual winding process takes place with increasing diameter d. If the coil 8 is completely wound, so that d = D, the revolver 2 is rotated by 180 ° about its axis of rotation, so that the spindle 5 is then brought into the rest position 12, while the spindle 4, of which already the coil. 6 is removed, is spent in the working position 13, which can use a new winding process.

In Fig. 1 is already apparent that with increasing diameter d at a certain time of the winding cycle, a distance 21 of the lateral surfaces of the coils 6, 8 becomes smaller, until the lateral surface of the coil 8 comes to rest on the lateral surface of the coil 6, which is a standstill or a Interrupting the winding process would result. Accordingly, the spool 6 must be removed from the spindle 4 before the diameter d has grown so that the distance 21 is reduced to zero. In the plan view according to Fig. 2 it can be seen that the Spools 6, 8 each axial extensions 14, 15 have, which correspond to the laying width of Spulguts and the traverse path of the traversing device 11. Continue in Fig. 2 It can be seen that the sleeves 7, 9 inserted here protrude from the coils 6, 8 at the end, so that the sleeves 7, 9 have a length which is greater than the axial extensions 14, 15. Since end faces 16, 17 of the coils 6 , 8 without offset from each other in the same vertical plane, which is transverse to the axes of rotation 18, 19 of the coils 6, 8 are arranged, the coils 6, 8 have an overlap 20, which corresponds to the axial extensions 14, 15 according to the prior art , The distance 21 of the coils 6, 8 consists in a plane which extends through the longitudinal axes of the spindles 4, 5. The axial overlap 20 results in particular when the axial extensions 14, 15 are projected onto one of the longitudinal or rotational axes 18, 19 of the coils 6, 8.

For an inventive embodiment (the front view in principle Fig. 1 can correspond) is in accordance with Fig. 3 the finished coil 6 in the rest position 12, while the coil 8 is in the working position 13 in the structure. Again, initially the coils 6, 8 have an overlap 20, since the coils 6, 8 are both in a winding position 22, that are arranged in the same vertical plane. The winding position 22 describes in each case a relative position of the coils 6, 8 relative to the associated spindle 4, 5 or relative to the support structure 3 or the turret 2. In the rest position 12 and the Spulposiion 22 of the coil 6 according to Fig. 3 Rather, before the distance 21 of the lateral surfaces of the coils 6, 8 is "consumed" due to the increasing diameter d, the winding position 22 by actuation of a displacement device 23 in the removal position 24 of the coil 6 according to Fig. 4 converted by the coil 6 with sleeve 7 is axially displaced relative to the spindle 4 by a displacement path 25 from the winding position 22 to the removal position 24. The displacement path 25 is in this case selected such that the axial extensions 14, 15 of the coils 6, 8 have no overlap 20 more, but rather a distance 26 from each other when projecting the axial extensions 14, 15 on a longitudinal or rotational axis 18, 19. Der Displacement path 25 of the displacement device 23 is greater than the axial extensions 14, 15 of the coils 6, 8. In Fig. 4 It can be seen that, irrespective of the diameter d of the coil 8 to be wound, a collision between the coils 6, 8 is reliably avoided. The displacement of the coil 6 via the displacement path 25 can take place at any time, for example, immediately at the beginning of the winding process for the coil 8 or during the winding cycle of the coil 8. It is also possible that in the normal case at the winder 1 no displacement by the displacement device 23 takes place, but in the normal case, a removal of the coil 6 by the operator from the winding position 22 according to Fig. 3 he follows. The actuation of the displacement device 23 then takes place only when it is automatically detected that a coil 6 has not yet been removed from the spindle 4 when the diameter d of the coil 8 reaches or exceeds a critical diameter d _LIMIT . In this case, the position designated as "removal position 22" is as shown in FIG Fig. 4 a kind of safety position.

In the illustrated embodiment, the displacement device 23 according to the invention is a punch 27 which can be extended in accordance with the activation of an actuator. For example, a pneumatic piston / cylinder unit can be used to extend the punch 27, whereby it can also work against a spring that with the venting of the piston / cylinder unit an automatic reset of the punch 27 takes place. It is also possible that for the vented piston / cylinder unit, the pushing back of the punch 27 takes place when a new sleeve 7 is pushed onto the spindle 4. According to the embodiment in Fig. 4 the end face of the punch 27, for example, with a pusher plate 37, a front side of the sleeve 7 acts to bring about the displacement of the coil 6 via the displacement path 4. It is also possible that an end face of a corresponding punch 27 acts directly on the winding of the coil 6, in particular when the coil 6 is formed without a sleeve 7. It is possible that the spool 6 or the sleeve 7 is axially and / or radially fixed in the working position 13 and in the transfer of the working position 13 in the rest position 12 on the spindle 4, wherein then before actuation of the displacement device 23 is a corresponding axial and / or radial fixation must be solved.

A comparison of Fig. 2 and 3 shows that the spindles 4, 5 are formed according to the invention longer than in the prior art: as in Fig. 3 can be seen, the coils 6, 8 in the winding position 22 with a length 28 of the coils 6, 8, here from the sleeves 7, 9, from collar. This length 28 may be adapted according to the circumstances. Preferably, the length 28 is between 50% and 100% of the axial extensions 14, 15 of the coils 6, 8. With a minimum length 28 of 50% of the axial extensions 14, 15, the coils 6, 8 in the removal position 24 just barely from the spindles held without these tilt. With a small length 28 reduces the way that the coil 6 then with removal from the operator or automatically in the direction of the axis of rotation 18 must be moved. It is possible that the length is 28 60%, 70%, 80%, 90% or 100% of the axial extent 14, 15. Quite possible, however, is that the length 28 is also longer than the previously indicated lengths.

The distance 36 of the rotation axes 18, 19, ie the longitudinal axes of the spindles 4, 5, in Fig. 3 and 4 is shown in a projection, is preferably less than the diameter D. It is possible that the distance 36 of the rotation axes 18, 19 is 60%, 70%, 80%, 90% or even 100% of the diameter D. Embodiments in which the spacing of the rotation axes 18, 19 is greater than the diameter D are also encompassed by the invention, wherein the embodiment according to the invention enlarges the handling space and a preparation and partial passage of the removal is made possible via the displacement device 23.

Fig. 5 shows an exemplary sequence of a method according to the invention:

In a method step 29, the spindle 6 is first completely wound on a spindle 4 in the working position 13, the coil 6 being in a winding position 22 relative to the spindle 4.

Subsequently, in the method step 30, the turret 2 is rotated by an angle of 180 ° until the spindle 4, as basically in FIG Fig. 3 is shown in the rest position 12, wherein preferably the coil 6 with respect to the spindle 4 is still in the winding position 22. In a (possibly simultaneously taking place) process step 31, the Spulgut 10 of the spindle 5 or a sleeve 9 disposed thereon is supplied in the working position 13, where the Spulgut 10 can be caught by a suitable catching device. It is possible that a fixation and / or reserve winding is produced in preparation for the actual winding process.

Finally, in the process step 31, a cutting of the Spulguts 10 takes place.

In the subsequent method step 32 then takes place the winding of the spool 8, which is in the working position, wherein the spool 8 is opposite to the spindle 5 in the winding position 22. It is possible that, in parallel with the winding of the coil 8, the coil 6 is braked on the spindle 4.

The method steps 29 to 32 correspond to the method steps known per se during a change process on a winding machine 1.

According to the invention, a supplementary method step 33 is used, by means of which the coil 6 is moved in the rest position 12 by the displacement device 23 from the winding position 22 into the removal position 24, in which the overlap 20 of the axial extensions 14, 15 is eliminated. In the method step 33, in a method step 34, an automated actuation of the displacement device 23 can take place by a control unit of the winding machine 1. In the method step 35, the removal of the bobbin 6 can then take place from the spindle 4, wherein a partial removal can already take place for the previously described dimensioning of the length 28 during the method step 34 with the actuation of the displacement device 23. By means of the different dashed optional alternative or cumulative branching possibilities in Fig. 5 It is indicated that the method steps 33, 34 can be executed at least partially at discrete points in time or at least during one of the method steps 30 to 32. Thus, for example, the upper dashed branch indicates that the actuation of the displacement device 23 in the method step 34 (at least partially) can already take place during the rotation of the turret 2 in the method step 30. Also possible according to the middle dashed branch that the operation of the displacement device 23 simultaneously with the preparation of the winding of the coil 8, ie with the transfer of the thread, the creation of the fixing or reserve winding, the severing of the Spulguts done. It is also possible that a partial actuation of the displacement device 23 in the method step 34 and / or the removal takes place in the method step 53, while the coil 8 is wound.

It is possible that each spindle 4, 5 has its own associated displacement device 23. These two displacement devices 23 can then be supported on the revolver 2 and rotated with this. A reduction of the construction costs can take place if a single displacement device 23 is responsible for both spindles 4, 5. In this case, for example, the displacement device 23 may be held on the support structure 3 at a location to which the spindle 4, 5, from which a coil is to be removed, by rotation of the turret 2 can move.

When forming the displacement device as a pneumatically actuated cylinder, the cylinder can be double-acting, so that a pneumatic reset of the displacement device 23 is possible.

A locking of the coils or sleeves on the spindles can be done non-positively by radially expanding, the spindle enclosing worm springs, which press with the radial expansion from the inside to the sleeve and thereby cause a rotational and axial fixation. The worm springs are arranged in V-shaped grooves of the spindles, wherein the V-shaped contour of the grooves forms a wedge-like slope. Coil springs push the worm springs outward along the slope, resulting in radial expansion. The fixation is solved pneumatically by an actuator, which can be arranged, for example, immediately below the displacement device 23, counteracts the force of the coil springs.

The ratio of the diameter D to the distance 36 is preferably in the range of 0.7 to 0.9, preferably in the range of 0.75 to 0.85. For example, said ratio may be 0.80. Based on the volume that can be wound up, and thus the duration up to which a collision occurs, this means that a collision would take place about 1/5 of the winding travel if a full bobbin is not removed.

To give only a few examples which are not intended to limit the present invention, the ratio of the distance of the end face of the spindle 4 from the end face 16 of the coil 6 to the axial extension 14 of the finished wound coil 6 can be 0.7 to 0.8, for example, 0.73. The ratio of the length 28 to the axial extent 14 of the finished wound coil 6 can be, for example, 0.6 to 0.7, in particular 0.66. It is understood that but other circumstances in the context of the present invention are quite possible.

Preferably, the actuation of the displacement device 23 takes place only after the full coil 6 has come to a standstill via a suitable braking device. It is also possible that the displacement device 23 is already actuated when the full bobbin 6 is still rotating. For this purpose, it may be advantageous if the displacement device 23 is integrated in the spindle itself, that is, the rotating spindle or a part thereof is moved axially.

LIST OF REFERENCE NUMBERS

1

Dishwasher

2

revolver

3

supporting structure

4

spindle

5

spindle

6

Kitchen sink

7

shell

8th

Kitchen sink

9

shell

10

winding material

11

Traversing device

12

rest position

13

working position

14

axial

15

axial

16

front

17

front

18

axis of rotation

19

axis of rotation

20

overlap

21

distance

22

winding position

23

displacement device

24

removal position

25

displacement path

26

distance

27

stamp

28

length

29

step

30

step

31

step

32

step

33

step

34

step

35

step

36

distance

37

Abschieberplatte

Claims (20)

1. Winding machine (1) with two spindles (4, 5) for two bobbins (6, 8) arranged thereon, wherein the bobbins (6, 8) are arranged on the spindles (4, 5) without an overlap (20) of their axial extensions (14, 15) when a completely wound bobbin (6) is in a removal position (24) wherein the removal position is effected by a displacement device (23) for displacing a completely wound bobbin (6) along its axis of rotation (18).
2. Winding machine (1) of claim 1, wherein

   a) it is possible to catch and/or wind a winding material (10) upon a spindle (5) in a winding position (13) of this spindle (5) whereas at the same time it is possible to remove a completely wound bobbin (8) located on another spindle (4) being in the removal position (24) from the winding machine,

   b) it is possible to bring the spindles (4, 5) into the winding position (13) and the removal position (24) in an alternating fashion,

   c) it is possible to displace a completely wound bobbin (6) along its axis of rotation (18) upon its spindle (4) by the displacement device (23) for effecting the removal position (24) from the winding position (13),

   d) the displacement device (23) comprises a displacement path (25) which is longer than the axial extension (14) of the bobbin (6) along its axis of rotation (18).
3. Winding machine (1) of claim 1 or 2, wherein the displacement device (23) displaces the bobbin (6) relative to the spindle (4).
4. Winding machine (1) of one of claims 1 to 3, wherein the displacement device (23) displaces the bobbin (6) together with the spindle (4).
5. Winding machine (1) of one of claims 1 to 4, wherein the longitudinal axes of the spindles (4, 5) have a distance (36) which is smaller than the diameter D of the completely wound bobbins (6, 8).
6. Winding machine (1) of one of claims 1 to 5, wherein the displacement device (23) is an axial actuator actuated by a control unit.
7. Winding machine (1) of one of claims 1 to 6, wherein the displacement device (23) is actuated by motion control corresponding to the rotational movement of a revolver (2) wherein the two spindles (4, 5) are rotatably supported by the revolver (2).
8. Winding machine (1) of one of claims 1 to 7, wherein in the removal position (24) of a completely wound bobbin (6) wherein the wound bobbins (6, 8) are arranged without overlap (20) of their axial extensions (14, 15) the spindle (4) only partially extends through the completely wound bobbin (6).
9. Winding machine (1) of one of claims 1 to 8, wherein by means of the displacement device (23) it is possible to displace a bobbin (6) or spindle (4) into an operating position wherein in the operating position the winding material (10) interacts with a cutting device and/or a catching device and/or wherein in the operating position a fixation winding and/or reserve or buffer winding is wound.
10. Winding machine (1) of one of claims 1 to 9, wherein it is possible to

    a) transfer a completely wound bobbin only by a rotation of the revolver (2) from a working position into a resting position and

    b) to transfer a completely wound bobbin by actuation of the displacement device (23) from a winding position into a removal position.
11. Method for the operation of a winding machine (1) for the alternating winding of bobbins (6, 8) on two spindles (4, 5) wherein a completely wound bobbin (6) is displaced upon its spindle (4) into a removal position (24) by a displacement device (23) used for displacing a completely wound bobbin (6) along its axis of rotation (18) wherein in the removal position (24) the axial extension (14) of this bobbin (6) does not have an overlap (20) with the axial extension (15) of a bobbin (8) having to be wound on the other spindle (5).
12. Method of claim 11, wherein

    a) a winding material (10) is caught and/or wound on a spindle (5) in a winding position (13) of this spindle (5),

    b) at the same time with the catching and/or winding on the spindle (5) according to a) a completely wound bobbin (6) is removed from another spindle (4) in a removal position (24) from the winding machine (1),

    c) in an alternating fashion the spindles (4, 5) are brought into the winding position (13) and the removal position (24),

    d) by means of the displacement device (23) the removal position (24) is effected from the winding position (13) by displacing a completely wound bobbin (6) along its axis of rotation (18),

    e) the displacement device (23) displaces the completely wound bobbin (6) along its axis of rotation (18) over a displacement path (25) which is longer than the axial extension (14) of the bobbin (6).
13. Method of claim 11 or 12, wherein by means of the displacement device (23) the bobbin (6) is displaced relative to the spindle (4).
14. Method of one of claims 11 to 13, wherein by the displacement device (23) the bobbin (6) is displaced together with the spindle (4).
15. Method of one of claims 11 to 14, wherein the longitudinal axes of the spindles (4, 5) have a distance (36) which is smaller than the diameter D of the completely wound bobbin (6).
16. Method of one of claims 11 to 15, wherein an axial actuator actuated by a control unit is used as the displacement device (23).
17. Method of one of claims 11 to 16, wherein the displacement device (23) is actuated by motion control corresponding to a rotational movement of a revolver (2).
18. Method of one of claims 11 to 17, wherein by the displacement device (23) the completely wound bobbin (6) is displaced in an extent such that the associated spindle (4) only partially extends through the completely wound bobbin (6).
19. Method of one of claims 1 to 18, wherein the displacement device (23) displaces the bobbin (6) or spindle (4) into an operating position wherein in the operating position the winding material (10) interacts with a cutting device and/or a catching device and/or in the operating position a fixation winding and/or a reserve or buffer winding is wound.
20. Method of one of claims 1 to 19, wherein a completely wound bobbin (6) is transferred by a rotation of the revolver (2) from working position into a resting position and wherein by an actuation of the displacement device (23) the bobbin (6) is transferred from a winding position (13) into a removal position (24).

Images