EP3208369B1 - Segment of a modular support for supply package for a two-stage twisting or cabling machine, modular support for supply package for a two-stage twisting or cabling machine and method for setting up a two-stage twisting or cabling machine - Google Patents

Description

The invention relates to a pre-twisting spindle segment for a two-stage twisting or cabling machine, a pre-twisting spindle unit comprising such a pre-twisting spindle segment and a method for constructing the two-stage twisting or cabling machine.

Two-stage twisting or cabling machines are well known and are based on the principle of a combined two-stage production process, in which, in a first production stage, several threads drawn off from a pre-twisting spindle unit are rotated, which in the second production stage counter-rotating or counter-rotating in the area of an unwinding spindle unit operated in parallel with the pre-twisting spindle unit can be combined with a further rotation division. This means that additional work in the production process can be avoided and costs can be reduced.

The principle of such a two-stage machine is for example with the document EP 1 357 208 A1 disclosed. This previously known machine comprises a plurality of twin-wire spindles as pre-twisting spindles, of which a predetermined number supplies an annular twisting spindle as a twisting-out spindle. In particular, two or more twin-wire spindles can be assigned to a single ring-twisting spindle for producing a predetermined yarn material. All two-for-one and ring twisting spindles assigned to one another are operated independently and are not coupled to one another in any fixed mode. For this purpose, the independently operated spindles each have their own electronic unit, by means of which the assigned, independently operating individual spindle is set to the specification of the yarn material to be produced. Although the previously known arrangement enables different yarn constructions to be produced; however, when setting up and adapting the possible manufacturable yarn or twisted thread constructions to given market situations, the machine requires a high expenditure of time and money.

Starting from the previous state of the art, it is an object of the present invention to provide a two-stage twisting or cabling machine, the configuration of which can be adapted to given market situations in a cost-effective and flexible manner, in particular with less expenditure of time.

According to one aspect of the present invention, this object is achieved by a pre-twisting spindle segment having the features of claim 1.

Further advantageous configurations of the pre-twisting spindle segment are the subject of the dependent device claims and the following description.

The proposed pre-twisting spindle segment is designed for a two-stage twisting or cabling machine. Such two-stage twisting or cabling machines usually comprise a pre-twisting spindle unit with at least one pre-twisting spindle segment and a twisting spindle unit with at least one twisting spindle position. The pre-twisting spindle segment comprises a support frame with a plurality of pre-twisting spindles, each of which is provided for receiving a supply bobbin, from which a thread can be pulled to a twisting-out spindle point of a twisting-out spindle unit of the twisting or cabling system. At least one controllable drive device is assigned to the pre-twisting spindles for a defined drive. More than one drive device can preferably also be provided. In this way, drive devices that are reduced in the specification and thus cost-effective can be used. Furthermore, a possible loss of power that occurs over the length of the drive can be reduced or avoided. In a further preferred manner, each pre-twisting spindle is assigned its own drive device, whereby the above effect can be further promoted. At least one drive device is also preferred, and particularly preferably all drive devices are held by the support frame. As a result, the required installation space can be reduced and the structure of the pre-twisting spindle segment can be kept simple.

The pre-twisting spindle segment also includes an electronics unit which has at least one interface for controlling the at least one drive device. With a view to reduced installation space and a low number of components, the electronics unit is preferably held by the support frame. The electronics unit can be commercially available control and / or regulating electronics, by means of which coupled electronic components can be controlled and / or regulated as required.

The respective drive device can preferably be controlled by means of an interconnected connecting line or with the drive device and the electronics unit common communication means provided in each case, which can wirelessly communicate unidirectionally or bidirectionally with one another. The interface can either be used to connect a connecting line or alternatively form the communication means. The connecting line is preferably a unidirectional or bidirectional communication line for transmitting communication signals, such as control and / or regulating signals.

The proposed pre-twisting spindle segment is characterized in that the pre-twisting spindle segment is designed for modular coupling, arranging and / or fastening of at least one spindle extension segment. Such a spindle extension segment comprises a further support frame with at least one motor-driven further pre-twisting spindle for receiving a further supply bobbin, from which a further thread can be drawn off to a twisting-out spindle point of the twisting-out spindle unit. The supply of the further thread can be provided to the untwisting spindle point which is to be served by at least one pre-twining spindle of the pre-twisting spindle segment or to a different untwisting spindle point. The spindle extension segment also has at least one controllable further drive device, the at least one further pre-twisting spindle drivable. The electronics unit is set up to control the at least one further drive device. For example, the electronics unit can for this purpose preferably be designed with at least one additional interface for controlling the at least one further drive device, for example by connecting at least one further connecting line which couples the electronics unit to the further drive device. Alternatively, the control can be designed wirelessly in a manner as described above. Accordingly, modular coupling is preferably to be understood as a detachable connection of the further drive device to the electronics unit. The spindle extension segment can in particular be arranged at a distance from or adjacent to the pre-twisting spindle segment.

Preferably, the support frame is designed for the modular arrangement and / or fastening of the at least one spindle extension segment. In terms of the modular arrangement, the pre-twisting spindle segment and the at least one Spindle extension segments are arranged detachably from one another in such a way that one segment can be supported on the other segment. A modular fastening is understood to mean a releasable arrangement such that a releasable fastening of one segment to the other segment can be realized. The arrangement can be adjacent or, taking into account the fastening means, with an intermediate distance.

The proposed pre-twisting spindle segment, in contrast to the previously pursued principle of a row arrangement of autonomously operated single spindles, enables a modular arrangement of one or more spindle extension segments to one or more pre-twisting spindles comprising a pre-twisting spindle segment. As a result, a two-stage twisting or cabling machine can be provided that is inexpensive and modularly changeable at any time. This is because an operator can first use a basic version of the two-stage twisting or cabling machine consisting of one or more pre-twisting spindle segments, possibly in combination with one or more spindle extension segments, in a simple and cost-effective manner. If necessary, the operator can retrofit or dismantle the machine cost-effectively with one or more spindle extension segments using the available modular design, in order to be able to react flexibly and promptly to market conditions. Furthermore, the high flexibility of the modular design allows a needs-based definition of which of the pre-twisting spindles of the pre-twisting spindle segment and the further pre-twisting spindles of the spindle extension segment are to work with which unwinding spindle point or to supply a thread. In this way, different yarn constructions can easily be produced with a twisting or cabling machine, depending on the market situation. For example, on one machine side of the twisting or cabling machine, a two-thread thread can be produced using a 2: 1 mode, a three-thread thread using a 3: 1 mode, a four-thread thread using a 4: 1 mode, etc., while in a preferred manner On the other side of the machine, a multi-thread thread based on a different mode can be produced. Alternatively, the twisting or cabling machine can be operated in the same way, at least in sections, on both machine sides. Depending on the selected mode, two, three, four, etc., assigned pre-twisting spindles of the pre-twisting spindle segment and / or further pre-twisting spindles of the spindle extension segment supply accordingly a twisting spindle point arranged on one side of the machine. If unwinding spindle points arranged in the longitudinal direction of the machine are provided for producing the same yarn construction, drive devices or further drive devices can be controlled by the electronic unit with the same production parameters from pre-twisting spindles arranged parallel to these unwinding spindle points or further pre-twisting spindles.

In a preferred manner, connecting lines are used at least between the electronic unit and further drive devices for transmitting at least control and / or regulating signals and more preferably other parameters, such as operating parameters for monitoring or analysis purposes. The unidirectional or bidirectional communication can be reliably guaranteed by means of the connecting lines, which can reduce possible impairment of production. In addition, the connection can be made without great effort.

For this purpose, according to a preferred embodiment, the electronics unit has a predetermined number of free interfaces, each for connecting a further connecting line for controlling at least one further drive device coupled to the further connecting line. One or more drive devices and / or one or more further drive devices can preferably be controllably coupled to a connection line or a further connection line, if necessary with the interposition of further means. For this purpose, relay points, for example, via which the electrical signals from the electronics unit are distributed, can be provided in the control path. At least one relay point can be provided on a segment, such as the pre-twisting spindle segment or the spindle extension segment, in order to branch off the electrical signals at the assigned segment and to pass them through to another coupled segment. The relay point can be, for example, an electrical connector which, with a view to the signal path, can be a T-connector for receiving, branching or supplying and routing electrical signals or an L-connector for receiving and supplying electrical signals. More preferably, the connector in the form of an electromechanical connector also forms a connection unit for mechanically connecting two adjacent segments, whereby the segments not only are electronically, but also mechanically coupled to one another. This can advantageously promote stability of the arrangement.

The predetermined number of free interfaces can be provided in a preferred manner, on the one hand depending on an electronically feasible design of the electronics unit, and on the other hand depending on a maximum number of spindle extension segments that can be modularly coupled to the pre-twisting spindle segment, can be arranged or attached in a modular manner , along with the resulting number of further drive devices and the type of connection, whether a line connection with or without a relay point and, if necessary, in combination with a wireless connection, can be determined in advance. In this way, a desired maximum size of the twisting or cabling machine can be defined as required.

The predetermined number of free interfaces can preferably correspond to a fixed number of possible further connecting lines, the number depending on a fixed maximum number of spindle extension segments which are provided for arrangement or fastening on or in a row with the pre-twisting spindle segment. For example, six spindle extension segments can be provided for modular arrangement on the pre-twisting spindle segment, with each spindle extension segment having a further connection line for controlling the further drive devices assigned to the respective spindle extension segment. In this way, cabling expenditure can be minimized. This is particularly advantageous if the further drive devices coupled to the further connecting line are provided for driving further pre-twisting spindles which are each intended to produce the same yarn construction.

In a further preferred manner, the electronics unit can be coupled to the drive device and / or the further drive device with a plurality of interfaces each for connecting a connection line or a further connection line with the interposition of a switch, a so-called distributor. The electronics unit can thus be designed with a smaller number of interfaces. Furthermore, a connection point for connecting the connecting lines or further connecting lines can be provided, freely selectable in an area with sufficient installation space.

According to a preferred embodiment, the pre-twisting spindle segment is formed by a spindle extension segment supplemented by the electronics unit. The respective segments can thus be provided inexpensively by a similar or identical construction. In this way, the twisting or cabling machine can advantageously be expanded, if necessary, in a cost-effective manner by at least one further pre-twisting spindle segment and corresponding spindle extension segments that can be coupled to it. All that is required is a corresponding number of twisting spindle positions. A design flexibility of the twisting or cabling machine is considerably improved. According to a further aspect of the present invention, the object described at the beginning is achieved by a pre-twisting spindle unit having the features according to claim 8.

Preferred embodiments are the subject of the correspondingly dependent device claims.
The proposed pre-twisting spindle unit is designed for a twisting or cabling machine as described above. The pre-twisting spindle unit is characterized in that it has at least one pre-twisting spindle segment according to one of the embodiments described above and at least one spindle extension segment. The advantages described above can thus be achieved in the same way.

The at least one spindle extension segment comprises at least one further pre-twisting spindle for receiving a further supply package and a further drive device that can be controlled by the electronics unit for driving the at least one further pre-twisting spindle. The at least one spindle extension segment is arranged in a modular manner adjacent to, preferably adjacent to, the pre-twisting spindle segment and in particular is detachably connected to the pre-twisting spindle segment by means of a connecting unit. The connecting unit can be a commercially available means of connecting, fastening or locking. The connection unit can be designed in one or more parts. The connection unit enables a stable modular arrangement of the spindle extension segment on the pre-twisting spindle segment. The connection unit can particularly preferably be the electromechanical connector described above.

The pre-twisting spindle unit preferably comprises a plurality of spindle extension segments, of which at least two are arranged in series with the pre-twisting spindle segment, the plurality of spindle extension segments being designed for communicating the respectively assigned further drive device with the electronics unit. Depending on a fixed number of pre-twisting spindles per segment and the assignment of these to a twisting-out spindle position, a multi-threaded thread to be produced in accordance with the requirements can be provided per twisting-out spindle position in an extremely flexible manner.

According to an alternative or additional preferred embodiment, the pre-twisting spindle unit has at least one row of pre-twisting spindles for supplying the same untwisting spindle position, the row of pre-twisting spindles being formed by a row arrangement of at least one pre-twisting spindle and at least one further pre-twisting spindle or at least two pre-twisting spindles or at least two further pre-twining spindles, and the associated drive devices or further drive devices are set up to be controlled by the electronics unit with drive parameters for production-oriented delivery of the same twisting spindle point. For example, multiple pre-twisting spindles of a pre-twisting spindle segment, multiple further pre-twisting spindles of a spindle extension segment or a combination of at least one pre-twisting spindle and another pre-twisting spindle can be assigned to a single unwinding spindle point. This increases flexibility in the delivery of a twisting spindle, so that available spaces in the area of the twisting or cabling machine can be used in an optimized manner for arranging pre-twisting spindle segments and possibly spindle extension segments. According to a further aspect of the present invention, the above-mentioned object is achieved by a method having the features according to claim 11.

The method is suitable for the construction of a two-stage twisting or cabling machine, which has a twisting spindle unit with several motor-driven twisting spindle locations arranged along a row, by means of which a multi-threaded twist from a predetermined number is supplied via a feed device Threads can be produced. The method is characterized in that a pre-twisting spindle unit is provided according to one of the above preferred embodiments, the at least one pre-twisting spindle segment being arranged adjacent to the untwisting spindle unit in such a way that a thread can be guided from the at least one pre-twisting spindle via the feed device to one of the untwisting spindle locations. Furthermore, the at least one spindle extension segment is arranged on one side of the at least one pre-twisting spindle segment in such a way that a thread can be guided from the at least one further pre-twisting spindle via the feed device to the one twisting-out spindle point or to another twisting-out spindle point. The arrangement can take place in a manner as described above. Furthermore, the electronic unit is coupled in a communicating manner with the drive device and further drive device. The advantages and effects described above can thus be achieved in the same way.

Further features and advantages of the invention emerge from the following description of preferred exemplary embodiments of the invention, with reference to the figures and drawings which show details essential to the invention, and from the patent claims. Within the scope of the claims, the individual features can be implemented individually or collectively in any combination in a preferred embodiment of the invention.

Preferred embodiments of the invention are explained in more detail below with reference to the accompanying drawings.

Figur 1

eine schematische Draufsicht einer zweistufigen Zwirnmaschine nach einem bevorzugten Ausführungsbeispiel;

Figur 2

eine schematische Draufsicht einer zweistufigen Zwirnmaschine nach einem bevorzugten Ausführungsbeispiel;

Figur 3

eine schematische Rückansicht der in Fig. 2 dargestellten Zwirnmaschine;

Figur 4

eine perspektivische Ansicht einer in Fig. 2 und 3 dargestellten Vorzwirnspindeleinheit nach einem bevorzugten Ausführungsbeispiel;

Figur 5

eine perspektivische Explosionsansicht eines Vorzwirnspindelsegments der in Fig. 4 dargestellten Vorzwirnspindeleinheit;

Figur 6

eine perspektivische Teilexplosionsansicht einer Vorzwirnspindeleinheit nach einem bevorzugten Ausführungsbeispiel;

Figur 7

eine perspektivische Teilexplosionsansicht von zwei in Fig. 6 dargestellten Vorzwirnspindeleinheiten nach einem bevorzugten Ausführungsbeispiel;

Figur 8A-8C

schematische Draufsichten von unterschiedlichen Vorzwirnspindeleinheiten nach bevorzugten Ausführungsbeispielen; und

Figur 9

ein Ablaufdiagramm eines Verfahrens zum Aufbau einer zweistufigen Zwirn- oder Kabliermaschine.

Show it:

Figure 1

a schematic plan view of a two-stage twisting machine according to a preferred embodiment;

Figure 2

a schematic plan view of a two-stage twisting machine according to a preferred embodiment;

Figure 3

a schematic rear view of the in Fig. 2 twisting machine shown;

Figure 4

a perspective view of an in Fig. 2 and 3 illustrated pre-twisting spindle unit according to a preferred embodiment;

Figure 5

FIG. 3 is an exploded perspective view of a pre-twisting spindle segment of FIG Fig. 4 pre-twisting spindle unit shown;

Figure 6

a perspective partially exploded view of a pre-twisting spindle unit according to a preferred embodiment;

Figure 7

a partially exploded perspective view of two in Fig. 6 illustrated pre-twisting spindle units according to a preferred embodiment;

Figures 8A-8C

schematic top views of different pre-twisting spindle units according to preferred exemplary embodiments; and

Figure 9

a flowchart of a method for building a two-stage twisting or cabling machine.

In the following description of preferred exemplary embodiments of the present invention, identical or similar reference symbols are used for the elements shown in the various figures and having a similar effect, a repeated description of these elements being dispensed with.

Figures 1 and 2 show schematic top views of a two-stage twisting machine 1 according to preferred exemplary embodiments. In particular, the two-stage twisting machine 1 is provided for processing glass filaments. The twisting machine 1 comprises two twisting-out spindle units 2, which extend adjacent to one another in parallel in the longitudinal direction of the machine. The twisting-out spindle units 2 each comprise a plurality of motor-driven twisting-out spindle locations 4, which are arranged along a row. On one end face of the twisting machine 1, a central control unit 6 is provided for controlling the respective unwinding spindle positions 4 or their drives 5. The twisting machine 1 is set up in such a way that different yarn constructions can be produced on different machine sides. The twisting spindle units 2 can thus be operated differently from one another.

With Fig. 1 a twisting machine 1 is shown in detail, which is set up on each side of the machine to produce a two-thread twist (2: 1 mode). Figure 2 shows, on the other hand, a twisting machine 1 adapted to market requirements, which in comparison to twisting machine 1 is expanded in such a way that on one machine side a three-thread thread (3: 1 mode) and on the other side of the machine a four-thread thread (4: 1 mode) can be produced. For this purpose, the twisting machines 1 have correspondingly adapted pre-twisting spindle units 6 on each machine side.

The pre-twisting spindle units 6 each comprise a pre-twisting spindle segment 8 with several motor-driven pre-twisting spindles 10 arranged in series and parallel to the twisting-out spindle locations 4 for receiving a supply bobbin (not shown), the pre-twisting spindles 10 being held by a support frame 12. Each pre-twisting spindle 10 is assigned a drive device 14 ( Fig. 4 and 5 ). As an extension of the illustration shown, the pre-twisting spindle segment can have several rows of pre-twisting spindles 10 according to a further exemplary embodiment. In this case, the twisting machine 1 would be made wider transversely to the longitudinal machine direction. To save installation space, the rows can be arranged offset to one another with a view of the spindle positions.

On a side assigned to the twisting-out spindle unit 2, the pre-twisting spindle segment 8 comprises an electronics unit 16 which is fastened to the support frame 12. The electronics unit 16 is set up to control the drive devices 14, the electronics unit 16 being electrically coupled to the respective drive devices 14 by means of connecting lines (not shown). The communication between the electronics unit 16 and the respective drive devices 14 can be unidirectional or bidirectional. The latter particularly favors a monitoring and analysis function of the respective drive device 14. As an alternative to or in combination with the connecting lines, wireless communication between the electronics unit 16 and selected or all drive devices 14 can be provided. To this end, a transmission unit is to be provided coupled with the electronics unit 16 and a corresponding receiver unit or a respective transmitter / receiver unit coupled to the drive device 14.

On a side of the pre-twisting spindle segment 8 facing away from the twisting-out spindle unit 2, in the exemplary embodiment in FIG Fig. 1 each one spindle extension segment 18 arranged in a modular manner. The in Fig. 2 The exemplary embodiment shown are correspondingly arranged in a modular manner, two or three spindle extension segments 18. The spindle extension segment 18 is constructed in the same way as the pre-twisting spindle segment 8 with the exception of the electronics unit 16. The spindle extension segment 18 accordingly has a further support frame 22, which carries a plurality of further pre-twisting spindles 20 each for receiving a further supply package, the further pre-twisting spindles 20 each being driven by a further drive device 24 ( Fig. 6 and 7th ). The further drive devices 24 are held by the further support frame 22 and are coupled to the electronics unit 16 in a communicating manner. The coupling can take place in a manner as described above.

The twisting machine 1 is designed in such a way that the pre-twisting spindle 10 and further pre-twisting spindles 20 arranged in a row transversely to the machine's longitudinal direction serve a twisting spindle position 4 opposite the row by feeding a thread to each twisting spindle position 4 via a feed device 30.

Figure 3 Figure 13 shows a rear view of the in Fig. 2 The twisting machine shown here 1. The feed device 30 in the form of a so-called conveyor godet is designed in such a way that a thread is drawn upside down from the respective pre-twisting spindles 10 and further pre-twisting spindles 20 and fed via deflection and guide elements of the conveyor godet 30 to the correspondingly assigned unwinding spindle point 4. The threads drawn off are given a first twist. In the area of each twisting-out spindle point 4, the threads are either combined in a counter-twisting manner or with a further twist division.

Figure 4 FIG. 11 shows a perspective view of the FIG Fig. 2 and 3 pre-twisting spindle unit 6 shown according to a preferred embodiment for a design according to the 3: 1 mode. The pre-twisting spindle unit 6 has the pre-twisting spindle segment 8, which is followed by two spindle extension segments 18. The pre-twisting spindle segment 8 is designed identically to the spindle extension segment 18 and is supplemented by the electronics unit 16. In this preferred embodiment, the drive devices 14 of the pre-twisting spindle segment 8 and the further drive devices 24 of the spindle extension segments 18 are controlled via an electromechanical connector 26 arranged at the edge, by means of which the control signals to the drive devices 14 or further drive devices 24 are branched off on the one hand and from one on the other to the other adjacent Segment. Furthermore, the connector 30 statically connects the respective adjacent segments to one another.

As an alternative to this, according to a preferred exemplary embodiment not shown, the drive devices 14 and the further drive devices 24 are connected directly to the electronic unit 16 by means of connecting lines. Here it is not absolutely necessary to couple each drive device 14 or further drive device 24 to the electronics unit 16 by means of a single connecting line. For example, a connection line can be provided per segment, which is connected directly to an interface of the electronics unit 16 or via a switch to the electronics unit 16, with a branch from the connection line to the individual drive devices 14 or further drive devices 24 in the area of the respective segment is provided. This is particularly advantageous if the pre-twisting spindle unit 6 serves twisting-out spindle positions 4 which are defined for producing a similar twist.

As in detail in Figure 5 As shown, the pre-twisting spindle segment 8 comprises a support frame 12, which is composed of a support bench 32, support supports 34 arranged at the end of the support bench 12, and a rear wall 36 which couples the support supports 34 to one another and is arranged laterally on the support bench 12. The support supports 34 are shaped in the form of a side wall. The electronics unit 16 is arranged on a side opposite the rear wall 36 and extends in the same way as the rear wall 36 in order to create, in connection with the side walls 34 and the rear wall 36, a space that accommodates the pre-twisting spindles 10 and at least partially protects them. On an underside of the support bench 32, the respective drive devices 14 are arranged directly below the associated pre-twisting spindle 10 for driving the same. The spindle extension segment 18 is identical to the pre-twisting spindle segment 8, only without the electronic unit 16. As a result, the spindle extension segment 18 has an open side which is provided for arrangement on the rear wall 36 of the pre-twisting spindle segment 8 or a further spindle extension segment 18. As a result, a pre-twisting spindle unit 6 can be provided with a reduced installation space. The number of pre-twisting spindles 10 or further pre-twisting spindles 20 can be adapted individually to the respective needs of the operator. So can according to the operator's specifications pre-twisting spindle units 6, which can be assembled in a modular manner, can be provided without great effort.

Figure 6 shows a pre-twisting spindle unit 6 according to a further preferred embodiment. The pre-twisting spindle unit 6 differs from the one described above in that the pre-twisting spindle segment 8 is combined transversely to the direction of arrangement of the unwinding spindle points 4. The pre-twisting spindle segment 8 has a smaller number of pre-twisting spindles 10, which are arranged in series with the electronics unit 16 or, with respect to the electronics unit 16, accordingly one behind the other. Between the pre-twisting spindles 10, a partition 38 is provided to delimit the individual pre-twisting spindles 10. On the pre-twisting spindle segment 8, on a side facing away from the electronics unit 16, a spindle extension segment 18 is provided for arrangement in the manner described above, the spindle extension segment 18 comprising a further pre-twisting spindle 20 with an associated further drive device 24. Both the electronic connection and the static connection take place in the manner described above by means of electromechanical connectors 26. With a view to the flexibility available, this pre-twisting spindle unit 6 shows, for example, one of many other options for a structure and a modular arrangement.

In this context shows Figure 7 a way of arranging a plurality of one in Figure 6 The pre-twisting spindle unit 6 shown here. A first pre-twisting spindle unit 6 is arranged adjacent to a second pre-twisting spindle unit 6. This arrangement allows greater flexibility with regard to the threads or glass filaments to be processed, with a transverse row formed by a pre-twisting spindle unit 6 of pre-twisting spindles 10 and further pre-twisting spindle 20 being assigned to an unwinding spindle point 4.

Figures 8A to 8C show, by way of example, a selection of differently configured pre-twisting spindle units 6, each of which has a pre-twisting spindle segment 8 with a plurality of coupled spindle extension segments 18. The number of spindle extension segments 18 as well as the number of pre-twisting spindles 10 and the further pre-twisting spindles 20 can be adapted as required and can be different from one another. With the present invention, a very flexible adaptation of a twisting or cabling machine to changing market requirements can be provided The machine can be supplemented with spindle extension segments or pre-twisting spindle units or reduced again if necessary, in a cost-effective and cost-effective manner, depending on requirements.

Figure 9 FIG. 3 shows a flow chart of a method 100 for setting up a two-stage twisting or cabling machine. This machine can be, for example, a machine 1 according to a preferred embodiment as described above, which has a twisting-out spindle unit 2 with several motor-driven twisting-out spindle positions 4 arranged along a row, by means of which a multi-thread thread from a predetermined number of over a feed device 30 supplied threads can be produced. The method 100 comprises a step 110 of providing a pre-twisting spindle unit 6 with a pre-twisting spindle segment 8 and at least one spindle extension segment 18. In a further step 120, the pre-twisting spindle segment 8 is arranged adjacent to the untwisting spindle unit 2 in such a way that a thread from at least one pre-twisting spindle 10 passes through the feed device 30 can be guided to one of the twisting spindle points 4. Furthermore, in a step 130, the spindle extension segment 18 is arranged on a free side of the pre-twisting spindle segment 8 in such a way that a thread can be guided from the at least one further pre-twisting spindle 20 via the feed device 30 to the one twisting-out spindle point 4 or to another twisting-out spindle point 4. In addition, in a further step 140, the electronic unit 16 is coupled in a communicating manner with the drive device 14 and further drive device 24.

The exemplary embodiments described and shown in the figures are selected only as examples. Different exemplary embodiments can be combined with one another completely or with regard to individual features. An exemplary embodiment can also be supplemented by features of a further exemplary embodiment. In this context, according to a preferred embodiment, not shown, essentially the only difference to the above-described at least one spindle extension segment is arranged adjacent at a distance from a pre-twisting spindle segment, the modular coupling of the pre-twisting spindle segment with the at least one spindle expansion segment by the electrical coupling of the electronic unit with the at least one further drive device of the at least one spindle extension segment is realized.

If an embodiment includes a “and / or” link between a first feature and a second feature, this can be read in such a way that the embodiment according to one embodiment has both the first feature and the second feature and according to a further embodiment either only the first Feature or only the second feature ..

Claims (11)

1. Pretwisting spindle segment (8) for a two-stage twisting or cabling machine (1), comprising
   a support frame (12) with a plurality of pretwisting spindles (10), which are each provided for holding a feed package, from which a thread can be pulled off to a final-twisting spindle position (4) of a final-twisting spindle unit (2) of the twisting or cabling machine (1), wherein at least one controllable drive device (14) is assigned to the pretwisting spindles (10) for defined drive, which drive device is coupled to an electronic unit (16)assigned to the pretwisting spindle segment (8) with at least one interface for controlling the at least one drive device (14),
   characterised in that
   the pretwisting spindle segment (8) is designed for the modular coupling, arranging and/or fastening of at least one spindle expansion segment (18), which has an additional support frame (22) with at least one additional motor-drivable pretwisting spindle (20) for holding an additional feed package, from which an additional thread can be pulled off to the or an additional final-twisting spindle position (4) of the final-twisting spindle unit (2); and at least one additional controllable drive device (24), which can drive the at least one additional pretwisting spindle (10), the electronic unit (16) being designed to control the at least one additional drive device (24).
2. Pretwisting spindle segment (8) according to claim 1, characterised in that the electronic unit (16) has at least one free interface for controlling the at least one additional drive device (24).
3. Pretwisting spindle segment (8) according to claim 1 or 2, characterised in that the supporting frame (12) is designed for the modular arranging and/or fastening of the at least one spindle expansion segment (18).
4. Pretwisting spindle segment (8) according to one of the preceding claims, characterised in that the electronic unit (16) has a predefined number of free interfaces, each for connecting a connection line for controlling at least one additional drive device (24) coupled to the connection line.
5. Pretwisting spindle segment (8) according to one of the preceding claims, characterised in that the electronic unit (16) can be coupled to the drive device (14) and/or to the additional drive device (24) by inserting therebetween a switch having a plurality of interfaces, each for connecting a connection line.
6. Pretwisting spindle segment (8) according to one of the preceding claims, characterised in that the pretwisting spindle segment (8) is formed by a spindle expansion segment (18) to which the electronic unit (16) has been added.
7. Pretwisting spindle segment (8) according to claim 1, characterised in that the pretwisting spindle segment (8) has a plurality of drive devices (14), each for driving at least one of the pretwisting spindles (10).
8. Pretwisting spindle unit (6) for a two-stage twisting or cabling machine (1), characterised in that the pretwisting spindle unit (6) comprises at least one pretwisting spindle segment (8) according to one of the preceding claims and at least one spindle expansion segment (18), which has at least one additional pretwisting spindle (20) for holding an additional feed package and has an additional drive device (24) controllable by the electronics unit (16), for driving the at least one additional pretwisting spindle (20), the at least one spindle expansion segment (18) being modularly arranged next to, in particular adjoining, the pretwisting spindle segment (8) and being detachably connected to the pretwisting spindle segment (8), in particular by means of a connection unit (26).
9. Pretwisting spindle unit (6) according to claim 8, characterised in that the pretwisting spindle unit (6) comprises a plurality of spindle expansion segments (18), at least two of which are modularly arranged in series with the pretwisting spindle segment (8), each of the plurality of spindle expansion segments (18) being designed for the communication of the associated additional drive device (24) with the electronic unit (16).
10. Pretwisting spindle unit (6) according to claim 8 or 9, characterised in that the pretwisting spindle unit (6) has at least one pretwisting spindle row for supplying an identical final-twisting spindle position (4), the pretwisting spindle row being formed by a series arrangement of at least one pretwisting spindle (10) and at least one additional pretwisting spindle (20) or at least two pretwisting spindles (10) or at least two additional pretwisting spindles (20), and the associated drive devices (14) and/or additional drive devices (24) being designed to be controlled by the electronic unit (16) by means of drive parameters for supplying the same final-twisting spindle position (4) in accordance with production requirements.
11. Method (100) for constructing a two-stage twisting or cabling machine (1), which has a final-twisting spindle unit (2) having a plurality of motor-drivable final-twisting spinning positions (4), which are arranged in a row and by means of each of which a multi-thread yarn can be produced from a predefined number of threads fed by means of a feeding device (30),
    characterised in that
    a pretwisting spindle unit (6) according to one of claims 8 to 10 is provided, the at least one pretwisting spindle segment (8) being arranged next to the final-twisting spindle unit (2) in such a way that a thread can be guided from the at least one pretwisting spindle (10) to one of the final-twisting spindle positions (4) by means of the feeding device (30),
    the at least one spindle expansion segment (18) being arranged on a side of the at least one pretwisting spindle segment (8) in such a way that a thread can be guided from the at least one additional pretwisting spindle (20) to the one final-twisting spindle position (4) or to another final-twisting spindle position (4) by means of the feeding device (30), and
    the electronic unit (16) being communicatively coupled to the drive device (14) and additional drive device (24).

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