EP3351670A1 - Braiding machine with magnetic rotors - Google Patents

Abstract

The present invention relates to a braiding machine with at least two impellers (2) for displacing at least one clapper (1), the clapper (1) at least partially made of a ferromagnetic material and each of the impellers (2) has at least one bobbin receptacle (2a), which has a plurality of electromagnets (3), wherein the electromagnets (3) enclose a partial circumference of the clapper (1) of about 50 ° to about 120 °.

Description

The present invention relates to a braiding machine.

The publication DE 10 2011 012 166 A1 describes a braiding machine that makes it possible to produce any braiding pattern. Different tracks are connected or combined with one another by means of a mechanical switch in order to achieve different braiding patterns. Switching the turnout takes time. This is directly related to the track length. The shorter the length of the track between two turnouts, the faster the turnout must be set or the bobbin movement interrupted until the positioning of the turnout is completed.

It would be desirable to have a braiding machine that can produce any braiding pattern without long set-up times and without downtimes. In addition, the braiding machine should be able to perform a braiding operation with high speed and high reliability.

The object of the invention is therefore to provide a braiding machine with high flexibility and high wicking speed, while maintaining high reliability.

This object is solved by the features of the independent claims. Advantageous developments are defined in the dependent claims.

According to a first aspect, a braiding machine with at least two impellers for displacing at least one bobbin is provided, wherein the clapper is at least partially made of a ferromagnetic material and each of the impellers has at least one clapper receptacle having a plurality of electromagnets, the electromagnets enclosing a partial circumference of the clapper of about 50 ° to about 120 °.

Due to the electromagnetic bobbin recording a braiding can be made very flexible because the clapper can be kept arbitrarily or handed over by the electromagnets are driven accordingly or activated / deactivated to generate or eliminate a magnetic field.

Preferably, a contact surface of the bobbin receiving, with which the clapper comes into contact or can occur, a plurality of flat surfaces in accordance with the number of electromagnets. The flat surfaces in connection with a cylindrical clapper have the advantage that an adhesion is not too great to accelerate a transfer of the clapper.

According to another aspect, there is provided a braiding machine having at least two vanes for displacing at least one clapper, the clapper consisting at least in part of a ferromagnetic material and each of the vanes having at least one clapper receptacle having an electromagnet, the electromagnet being a partial circumference of the Bobbin of about 50 ° to about 120 ° and has the shape of a letter L with two substantially equal legs, with a contact surface with which the clapper comes into contact or can occur along both legs is formed.

The L-shape of the electromagnets approximates the shape of the bobbin receptacle to reduce the distance to the bobbin. As a result, the clapper can be held securely by a very small magnetic field. In addition, the reduced magnetic field can be built up and taken down more quickly in order to accelerate a bobbin transfer and thus the braiding process.

Preferably, the electromagnets have two coils or coil sections, each associated with one of the legs of the L-shape, and / or a contact surface of the bobbin receiving means has an arcuate shape conforming to an outer contour of the clapper.

Preferably, the solenoids of an impeller dispensing the clapper are turned off prior to a handover point and / or the solenoids of an impeller taking over the clapper are turned on prior to the handover point and / or coils or coil sections or individual solenoids are of different voltage and / or different power supplied and / or are time-delayed activated / deactivated.

More preferably, the electromagnets are switched on or off in about 20 ° to about 80 ° before the transfer point.

Preferably, a plurality of impellers are arranged on a flat surface one above the other and side by side in rows and columns or in a circle.

More preferably, a plurality of impellers are arranged in concentric circles and each of the concentric circles has the same number of impellers.

According to a further preferred embodiment, at least one additional impeller is arranged in a space between at least two of the concentric circles.

More preferably, a plurality of vanes are arranged on the circumference of a cylinder, so that all clappers are directed towards the axis of the cylinder or a plurality of vanes is arranged on the surface of a hemisphere, so that all clappers the same distance to a in the Center of the hemisphere braid point have.

• Fig. 1 zeigt ein Flügelrad gemäß einem ersten Ausführungsbeispiel.
• Fig. 2 zeigt eine Teilansicht eines Flügelrads gemäß einem zweiten Ausführungsbeispiel.
• Fig. 3 zeigt eine Teilansicht eines Flügelrads gemäß einem dritten Ausführungsbeispiel.
• Fig. 4 zeigt eine erläuternde Ansicht des Flügelrads gemäß dem ersten Ausführungsbeispiel.
• Fig. 5 zeigt eine erläuternde Ansicht des Flügelrads gemäß einer Abwandlung des ersten Ausführungsbeispiels.
• Fig. 6 zeigt einen Elektromagneten gemäß einem vierten Ausführungsbeispiel.
• Fig. 7 zeigt einen Klöppel mit einem Führungselement.
• Fig. 8 zeigt die Laufbahn eines Klöppels in der erfindungsgemäßen Flechtmaschine, wobei der Klöppel auf dem Flügelrad bleibt und die Bewegungsrichtung beibehalten wird.
• Fig. 9 bis 12 zeigen den Bewegungsablauf eines Klöppels in der erfindungsgemäßen Flechtmaschine, wobei der Klöppel von einem Flügelrad an das benachbarte Flügelrad übergeben wird und die Bewegungsrichtung beibehalten wird.
• Fig. 13 bis 16 zeigen den Bewegungsablauf eines Klöppels in der erfindungsgemäßen Flechtmaschine, wobei der Klöppel von einem Flügelrad an das benachbarte Flügelrad übergeben wird und die Bewegungsrichtung geändert wird.
• Fig. 17 zeigt ein Diagramm mit möglichen Übergabewinkeln bei unterschiedlichen Winkelöffnungen der Klöppelaufnahmen der Flügelräder.
• Fig. 18 zeigt ein Diagramm eines Übergabewinkels in Abhängigkeit vom Flügelradöffnungswinkel.
• Fig. 19 zeigt ein Diagramm eines Verhältnisses der Hebellänge in Abhängigkeit vom Flügelradöffnungswinkel.
• Fig. 20 zeigt einen schematischen Aufbau einer klassischen Rundflechtmaschine mit dem erfindungsgemäßen Übergabepunkt.
• Fig. 21 zeigt einen schematischen Aufbau einer erweiterten Rundflechtmaschine mit mehreren Ringen.
• Fig. 22 zeigt einen schematischen Aufbau einer erweiterten Rundflechtmaschine mit mehreren Ringen, die durch ein zusätzliches Flügelrad verbunden sind.
• Fig. 23 zeigt einen schematischen Aufbau einer quadratischen oder rechteckförmigen Flechtmaschine mit beliebiger Anzahl an Flügelrädern, die in Zeilen und Spalten angeordnet sind.
• Fig. 24 zeigt einen schematischen Aufbau einer Rundflechtmaschine, bei der die Flügelräder entlang eines Kreisbogens angeordnet sind.
• Fig. 25 zeigt einen schematischen Aufbau einer erweiterten Rundflechtmaschine mit zwei Ringen.
• Fig. 26 zeigt einen schematischen Aufbau einer kugeligen "Hollow Sphere" Flechtmaschine.

The invention will now be described by way of embodiments with reference to the drawings explained in more detail. Although individual embodiments are described separately, individual features of various embodiments may be combined to form other embodiments that are also intended to be encompassed by the present disclosure.

• Fig. 1 shows an impeller according to a first embodiment.
• Fig. 2 shows a partial view of an impeller according to a second embodiment.
• Fig. 3 shows a partial view of an impeller according to a third embodiment.
• Fig. 4 shows an explanatory view of the impeller according to the first embodiment.
• Fig. 5 shows an explanatory view of the impeller according to a modification of the first embodiment.
• Fig. 6 shows an electromagnet according to a fourth embodiment.
• Fig. 7 shows a clapper with a guide element.
• Fig. 8 shows the career of a bobbin in the braiding machine according to the invention, wherein the clapper remains on the impeller and the direction of movement is maintained.
• Fig. 9 to 12 show the movement of a bobbin in the braiding machine according to the invention, wherein the clapper is transferred from an impeller to the adjacent impeller and the direction of movement is maintained.
• Fig. 13 to 16 show the movement of a bobbin in the Braiding machine according to the invention, wherein the clapper is transferred from an impeller to the adjacent impeller and the direction of movement is changed.
• Fig. 17 shows a diagram with possible transfer angles at different angular openings of the bobbin recordings of the impellers.
• Fig. 18 shows a diagram of a transfer angle in dependence on the Flügelradöffnungswinkel.
• Fig. 19 shows a diagram of a ratio of the lever length in dependence on the Flügelradöffnungswinkel.
• Fig. 20 shows a schematic structure of a classic round braiding machine with the transfer point according to the invention.
• Fig. 21 shows a schematic structure of an extended round braiding machine with multiple rings.
• Fig. 22 shows a schematic structure of an extended round braiding machine with multiple rings, which are connected by an additional impeller.
• Fig. 23 shows a schematic structure of a square or rectangular braiding machine with any number of vanes, which are arranged in rows and columns.
• Fig. 24 shows a schematic structure of a round braiding machine, wherein the vanes are arranged along a circular arc.
• Fig. 25 shows a schematic structure of an extended round braiding machine with two rings.
• Fig. 26 shows a schematic structure of a spherical "Hollow Sphere" Braiding.

In FIG. 1 an impeller or clapper carrier 2 is shown according to a first embodiment, which has a plurality, in particular four offset by about 90 ° bobbin recordings 2a, in which at least one clapper 1 can be at least partially received and held when associated electromagnets 3 with arrangement or are activated in the region of bobbin receiving 2a by the electromagnets 3 are supplied with power.

It is understood that the invention is not limited to impellers 2 with four bobbin holders 2a, but that the impellers 2 can have any number of bobbin holders 2a, such as one, two, three, five or more bobbin receivers 2a. The bobbin recordings 2a must also have no equal angular distance from each other on the circumference of the impeller 2, but may also be arranged irregularly on the circumference of the impeller 2.

The bobbin shots 2a in Fig. 1 each have a pair of electromagnets 3, 3, which are arranged on substantially planar or flat contact or adhesive surfaces 8, 8 of the bobbin recordings 2a. At these adhesive surfaces 8, 8 is an outer periphery of a clapper 1 and adheres thereto due to the attractive magnetic force of the electromagnets 3,3 when they are supplied with power, because the clapper 1 is at least partially magnetic or has a magnetic material, as later is described.

If, due to the latency, the magnetic field degrades after the current has been switched off, the clapper 1 is released from the clapper receptacle 2 a and can, for example, be moved along a removal path to another (in FIG Fig. 1 not shown) impeller to be passed.

Fig. 2 shows a second embodiment of a bobbin recording 2a of an impeller 2, wherein three electromagnets 3 are arranged on correspondingly three substantially planar contact or adhesive surfaces 8. The electromagnets 3 of In this case, the second embodiment can be made smaller than the electromagnets 3 of the first embodiment in order to produce the same adhesive force because each of the electromagnets 3 has to generate only one third of the total adhesive force, whereas in the first embodiment, each of the two electromagnets 3 generates half of the total adhesive force got to. The smaller electromagnets 3 thus offer the advantage that their magnetic field can be built up and taken down faster because the magnetic field of each of the three electromagnets 3 is smaller.

Fig. 3 shows a third embodiment with a part-circular adhesive surface 8, on whose course a plurality of small electromagnets 3 is arranged. According to this embodiment, the magnetic field can be built up and taken down even faster compared to the first and second embodiments. In addition, the cylindrical bobbin 1 is in a substantially flat (in particular full-surface) contact with the adhesive surface 8, so that due to improved magnetic coupling sufficient adhesive force can be generated even with a reduced magnetic field. Due to the thus smaller magnetic field for generating the sufficient adhesive force of the assembly and disassembly of the magnetic field can be further accelerated.

The FIGS. 4 and 5 show different angles 4 of the bobbin recording 2a, while showing Fig. 4 an opening angle or angle 4, which include the vertical S of the adhesive surfaces 8, of about 80 °, while the embodiment of Fig. 5 has an angle 4 between the vertical S of about 120 °. As in the FIGS. 4 and 5 is shown, the cylindrical clapper 1 is applied to the flat adhesive surfaces 8 by line contact. A straight line drawn through the contact point or the contact line, which runs perpendicular to the adhesive surface 8, respectively forms the vertical S. The angle 4 is defined as the angle formed between the perpendicular S on the side of the bobbin receiving 2a.

The inventors have recognized that an angle 4 formed by the perpendicular S of the adjacent adhesive surfaces 8 ranges from about 50 ° to about Should be 120 °. Preferably, the angle 4 is in the range of about 80 ° to about 110 °, most preferably in the range of about 90 ° to about 100 °. The angle 4 thus encloses a partial circumference T of the cylindrical clap 1.

The specified angle ranges offer the advantage of a good adhesion of the bobbin 1 with simultaneous rapid assembly and disassembly of the magnetic field of the electromagnets 3 in order to accelerate the bobbin transfer. Thus, a safe and reliable braiding operation can be performed at a high speed.

In addition, a transfer angle, i. an angle of relative position of adjacent vanes 2 to each other during the rotation of the vanes 2, are increased when due to the preferred angular range, a high magnetic attraction force is exerted on the clapper 1. As transfer angle that angle is to be understood, which passes during the rotation of the impellers 2, starting with the release of the clapper 1 from the adhesive surface 8 of the donating impeller 2 to the arrival of the clapper 1 on the adhesive surface 8 of the female impeller. 2

Fig. 6 shows an electromagnet 3 according to a fourth embodiment, which has the shape of a letter L. A magnet housing 7 with two legs 7a, 7b of substantially equal length has an L-shape and accommodates an L-shaped magnet core 6, which has a coil or a coil section 5a, 5b on each leg 7a, 7b. Each of the coils 5a, 5b has a winding with at least one electrical conductor 5 in order to form an electromagnet 3 in cooperation with the magnetic core 6.

On the legs 7a, 7b of the L-shape beyond a substantially part-circular or arcuate adhesive surface 8 is provided, which coincides with an outer contour of the clapper 1 to provide good adhesion of the clapper 1 to the adhesive surface 8.

Preferably, each coil or each coil section 5a, 5b can be controlled separately or can generate a different high magnetic field. This can be achieved, for example, in that the coils or coil sections 5a, 5b are supplied with power at different times or that the coils or coil sections 5a, 5b are supplied with different high voltage and / or different high current. Another possibility for generating a different magnetic field is that the number of turns of one coil 5a is different from the number of turns of the other coil 5b.

The advantage of a different high magnetic field of the two coils or coil sections 5a, 5b is that the transfer of the bobbin 1 can be further optimized or accelerated, for example, if one of the legs 7a, in the direction of rotation of the impeller 2 behind the other leg 7b, has a stronger or weaker magnetic field and / or time-activated to the magnetic field of the other leg 7b is activated or deactivated.

It is understood that the generation of different high magnetic fields and / or time-offset controls not on the embodiment of Fig. 6 is limited, but also in the embodiments of FIGS. 1 to 3 is possible.

In FIG. 7 is a detailed view of a clapper 1 is shown, which has a substantially cylindrical shape, wherein on an outer circumference of the cylinder, a ferromagnetic material 12 is provided or arranged to hold the clapper 1 by means of the electromagnets 3 at the bobbin receiving 2a of an impeller 2. However, the invention is not limited to the placement of the ferromagnetic material 12. Rather, the entire clapper 1 may be made of ferromagnetic material or at least parts thereof.

Preferably, the clapper 1 moreover has an (in particular circular or wheel-shaped) sliding element 11 at an axial end of the cylindrical shape be mechanically guided by a corresponding mechanical guide element 10 of the braiding machine.

Fig. 8 shows the career of the clapper 1 in the braiding machine according to the invention, when the clapper 1 remains on the impeller 2 and the direction of movement is maintained. In this case, stay as in Fig. 8 is shown, the electromagnets 3 of the bobbin recording 2a, in which the clapper is 1, turned on to hold the clapper 1 by the adhesive force of the electromagnets 3. In contrast, remain the electromagnets 3 of the adjacent impeller 2 (right in Fig. 8 ) Off, because no transfer of the bobbin 1 should take place.

Fig. 9 to 12 show the movement of the bobbin 1 in an embodiment of the braiding machine according to the invention, when the bobbin 1 is transferred from a rotating impeller 2 to the adjacent rotating impeller 2 and the direction of movement is maintained. The electromagnets 3 are in the in Fig. 9 shown relative position of the adjacent impellers 2 both in the donating impeller 2 (left impeller 2 in Fig. 9 ) as well as the receiving impeller 2 (right impeller 2 in Fig. 9 ) supplied with electricity. In the in Fig. 9 shown relative position of the two impellers 2 remains the clapper 1 on the donating impeller 2 due to the smaller distance to the electromagnet 3 and the resulting stronger magnetic field. Thus, one or more bobbins 1 are received in the respective bobbin holders 2a of the respective vane wheel (s) 2 and positioned or held therein by means of the magnets 3 associated therewith. The impellers 2 are rotated relative to one another (in particular with a substantially identical angular velocity), so that bobbin holders 2a corresponding to one of the two impellers 2 are adjacent to each other in pairs at a multiplicity of circumferential positions, in particular on reference lines leading through the central axis. By appropriate control or regulation of the associated magnets 3 thus arranged in a bobbin holder 2a bobbin 1 of the other adjacent bobbin recording 2a of the adjacent impeller 2 can be moved or transferred, so that in this transfer step the respective clapper 1 between each selected, pairwise adjacent bobbin recordings 2a of the impellers 2 is passed. Thus, the picking of a bobbin 1 to a first or a second vane 2 at each circumferential position can be performed independently of a transfer position assignment of bobbins 1 to the two vane wheels 2 on the bobbin receivers 2a at other circumferential positions. Under an assignment is in particular an optional arrangement or leave an existing bobbin arrangement or position on an impeller 2 or bobbin displacement or transfer to the respective other impeller 2 understood. In particular, an assignment of the bobbin position on each pair of bobbin lace can be made independently of the assignment to another bobbin take-up pair (s) or circumferential position (s). In particular, the angle of rotation and / or the direction of rotation of the adjacent impellers 2 can optionally be different or positive or negative, so that both directions of rotation (also independently of each other) are possible.

Just before the transfer point 14, ie just before the bobbin recordings 2a of the adjacent impellers 2 are directly opposite, as in Fig. 10 is shown, the electromagnets 3 of the donating impeller 2 are turned off to allow the transfer, as in Fig. 11 is shown. Thereafter, the clapper 1 rotates together with the receiving impeller 2, as in Fig. 12 is shown.

In the FIGS. 13 to 16 a movement sequence of the clapper 1 is shown, wherein the clapper 1 is transferred from an impeller 2 to the adjacent impeller 2 and the direction of movement is changed. The correspond Figures 13 and 14 the Figures 10 and 11 and the circuit of the electromagnets 3 is the same, so this will not be repeated here. Unlike the in FIG. 12 shown movement is in accordance with the FIGS. 15 and 16 However, the direction of rotation of the receiving impeller 2 is reversed, so that the clapper 1 after passing the rotation of the in Fig. 15 and 16 right impeller 2 follows.

The larger a transfer angle fails, the more time remains for the transfer of the bobbin 1. A high value is therefore desirable. Already with reference to the descriptions and figures it is clear that the transfer angle when using a part-circular bobbin recording 2a and the attachment of only one electromagnet 3 is significantly lower than when using a plurality of electromagnets 3 in an angular arrangement to each other. In order to prove this statement, corresponding calculations were carried out, the results of which are given in Fig. 17 are shown. Shown are the distances at different transfer angles. In addition to the part-circular bobbin receiving 2a angle openings are shown in a range between 60 ° and 120 °.

Based on the fact that a magnet in suitable sizes at too large distances to the clapper 1 can no longer exert any attraction, distance values between 0 and 1 mm are of interest. At any time impeller designs with bobbin recordings 2a achieve a higher transfer angular range with constant cylinder spacing. With a maximum distance of about 1 mm and an angular opening of about 60 °, this corresponds to a transfer angle increase of about 170%. For the further determination of the system parameters, therefore, only angular vane wheel openings are considered.

• Konstanter Flügelradradius von 67,5 mm
• Konstanter Flügelradabstand von 0 mm
• Variation des Flügelradöffnungswinkels

Der Flügelradöffnungswinkel entspricht dabei dem Winkel, der durch die beiden Haftflächen 8, 8 der Klöppelaufnahmen 2a gebildet wird.The investigation of the change in the transfer angle as a function of the impeller opening angle requires, first of all, that for the calculation both the impeller radius and the impeller clearance remain constant. The calculated values are based on the following assumptions and largely reflect the realistic properties:

• Constant impeller radius of 67.5 mm
• Constant impeller clearance of 0 mm
• Variation of the impeller opening angle

The Flügelradöffnungswinkel corresponds to the angle which is formed by the two adhesive surfaces 8, 8 of the bobbin recordings 2a.

As Flügelradradius is the radius from the center or pivot point of the impeller 2 to the outer circle of the impeller 2 to understand.

Impeller spacing is the distance between the circular outer lines of the two adjacent impellers.

As the vane opening angle increases, the transfer angle values decrease exponentially. Fig. 18 illustrates the course of the curve using a diagram.

With opening angles between 110 ° and 170 °, the value of the transfer angle changes by just 1 °. By contrast, between 30 ° and 110 °, the difference between the maximum and minimum transfer angles is approximately 7 °. If geometrical properties of the electromagnets 3, such as size and shape, are neglected, smaller vane opening angles are advantageous since a larger range of the transfer angle is ensured. Sense opening angles are between about 30 ° and about 110 °, since at values above this range, the change of the transfer angle is minimal.

The impact of the clapper 1 on the impeller opening results in different loads and moments on the respective motor axis. Depending on the distance of the point of impact of clapper 1 and impeller 2 to the central axis different leverage ratios are achieved in Fig. 19 are shown. To make the difference clear, opening angles of 50 ° and 120 ° are compared.

• Konstanter Flügelradradius von 135 mm
• Konstanter Flügelradabstand von 0 mm

A leverage of 100% corresponds to impact of the clapper 1 at the extreme point of the impeller opening, which corresponds approximately to the value of the diameter. The course of the curve can be described essentially by a parabolic waste and is in Fig. 19 shown. The ratio of the lever length results from the length between the point of impact of the clapper. 1 and the center. This is compared with the maximum length (value of the impeller diameter) and converted. The calculated values are based on the following assumptions, as in the previous experiments:

• Constant impeller radius of 135 mm
• Constant impeller clearance of 0 mm

In the stated reasonable range of the impeller opening angle between about 30 ° and about 170 ° varies the ratio of the lever length between 97% and 9%, which represents a considerable decrease. Due to the attractive force of the electromagnet 3, the clapper 1 is accelerated in addition to its current path speed and can impinge on an opening edge of the adjacent impeller 2. The greater the resulting torque, the more advantageous it is that the affected electric motor compensates for these vibrations of the impact of the clapper 1 on an edge of the impeller 2. It is therefore advantageous to compensate for an engine-side compensation of these shocks during impact in order to prevent an increase in a load on the braided material used and thus on the entire mesh to be produced. Thus, braid fractures can be advantageously prevented, which could otherwise lead to an interruption of the braiding process. As a result, the inventors have recognized that larger opening angles with respect to the reduced leverage are beneficial and can be taken into account in determining a suitable range of cylinder transfer advantageous.

In the FIGS. 20 to 26 different types of round braiding machines with corresponding impellers 2 according to the invention are shown.

In FIG. 20 is an embodiment of a braiding machine shown in which a plurality of impellers 2 on a (only partially illustrated) circle is arranged with the center M. Between two adjacent impellers 2 each have a transfer point 14 is arranged according to a particular embodiment. Each of the impellers 2 in each case has approximately 90 ° along its circumference puts a bobbin recording 2a, thus a total of four bobbin recordings 2a to move the bobbin 1 along the circumference of the impeller 2. According to the invention, however, also a different number of bobbin recordings (eg, one, two, three, or five or more bobbin recordings 2a) per impeller 2 is conceivable. In this way, the clappers 1 can be moved along the circumference of a single one of the impellers 2 or alternatively passed on to the adjacent impeller 2. It is understood that in this way a very flexible braiding process can be carried out without the machine having to be converted or rebuilt. Furthermore, the transfer of a bobbin 1 in a very fast manner, only by driving or energizing a respective one of the electromagnets 3, take place.

In FIG. 21 another embodiment of a particular braiding machine is shown, in which a second concentric circle of impellers 2 is arranged substantially around the center M around. In this way, the clappers 1 can be optionally moved along one of the two substantially concentric circles formed by the plurality of impellers 2, respectively. In addition, at least one transfer point 14 is preferably arranged between adjacent impellers 2 of one of the circles and one impeller 2 of the other circle. In the presentation of FIG. 21 In each case, a transfer point 14 between adjacent impellers 2 of the one circle and the other circle is arranged. In this way, a clapper 1 can be transferred from one of the concentric circles to the other of the concentric circles. In this way, the braiding becomes even more flexible.

It is understood that the invention is not limited to the arrangement of two substantially concentric circles on impellers 2, but a plurality of three, four, five or even more substantially concentric circles of impellers 2 can be arranged. Furthermore, the invention is not limited to impellers 2 with four bobbin recordings 2a, but it can be any number of bobbin recordings 2a on the impeller 2 or on a plurality of impellers 2 are arranged or impellers 2 with different numbers be combined with bobbin recordings 2a.

Another possible embodiment relates to arranging a single impeller 2 between two substantially concentric circles of a plurality of impellers 2, as in FIG FIG. 22 is shown. In this way, a transfer of a bobbin 1 from one of the concentric circles on the other of the concentric circles on the individual between the two concentric circles arranged impeller 2 take place. It is understood that such an arrangement of a single impeller 2 between concentric circles of impellers 2 further flexibility of a braiding process is possible.

However, the invention is not limited to the arrangement of concentric circles of impellers 2. Rather, the impellers 2 can also be arranged according to a rectangle or a special (ie predetermined or predeterminable) pattern or a matrix (ie ordered arrangement, in particular in rows and columns), such as in FIG. 23 is shown. Furthermore, the plurality of vanes 2 with the transfer points 14 disposed therebetween can be arranged along the circumference of a cylinder, such as in FIG FIG. 24 is shown. It is understood that a variety of in FIG. 24 shown cylindrical circles of impellers 2 can be arranged side by side. For simplicity, in FIG. 24 however, only a cylindrical circle of impellers 2 is shown. FIG. 25 shows an example of two cylindrical circles of impellers 2. In this case, the adjacent cylindrical circles in turn can each be connected by one or more transfer points 14.

Furthermore, it is possible to arrange the vanes substantially along the surface of a hemisphere, as in FIG FIG. 26 is shown.

The invention is not limited to an arrangement of impellers 2 according to the FIGS. 20 to 26 but any other arrangements of a plurality of impellers 2 may be made within the scope of the invention become.

LIST OF REFERENCE NUMBERS

1

tongue

2

impeller

2a

clapper recording

3

electromagnet

4

angle

5

electrical conductor

5a, 5b

Coil or coil section

6

magnetic core

7

magnet housing

7a, 7b

leg

8th

Contact or adhesive surface

9

tread

10

guide element

11

Slide

12

ferromagnetic material

13

career

14

Transfer point

S

vertical

Claims (10)

Braiding machine with at least two impellers (2) for displacing at least one bobbin (1), the bobbin (1) at least partially made of a ferromagnetic material and each of the impellers (2) at least one bobbin receiving (2a) having a plurality of electromagnets (3), wherein the bobbin receptacle (2) is designed such that it can enclose a partial circumference of the bobbin (1) of about 50 ° to about 120 °. A braiding machine according to claim 1, wherein a contact surface (8) of the bobbin receptacle (2a) with which the bobbin (1) comes into contact or has a plurality of flat surfaces in accordance with the number of electromagnets (3). Braiding machine with at least two impellers (2) for displacing at least one clapper (1), wherein the clapper (1) consists at least partly of a ferromagnetic material and each of the impellers (2) has at least one clapper receptacle (2a) which has an electromagnet (3 ), wherein the electromagnet (3) encloses a partial circumference of the clapper (1) of about 50 ° to about 120 ° and has the shape of a letter L with two substantially equal legs (7a, 7b), wherein a contact surface (8 ), with which the clapper (1) comes into contact or can occur along both legs (7a, 7b) is formed. Braiding machine according to claim 3, wherein the electromagnets (3) have two coils or coil sections (5a, 5b) which are each assigned to one of the legs (7a, 7b) of the L-shape, and / or a contact surface (8) of the bobbin holder (8). 2a) an arc shape in accordance with a Having outer contour of the clapper (1). Braiding machine according to one of the preceding claims, wherein the electromagnets (3) of an impeller (2) which releases the clapper (1) are switched off before a transfer point (14) and / or the electromagnets (3) of an impeller (2) the bobbin (1) takes over, be turned on before the transfer point and / or coils or coil sections (5a, 5b) or individual electromagnets (3) are supplied with different voltage and / or current and / or delayed activated / deactivated. Braiding machine according to claim 5, wherein the electromagnets (3) are switched on and off in about 20 ° to about 80 ° before the transfer point. Braiding machine according to one of the preceding claims, wherein a plurality of impellers (2) on a flat surface one above the other and next to each other in rows and columns or arranged in a circle. Braiding machine according to one of the preceding claims, wherein a plurality of impellers (2) is arranged in concentric circles and each of the concentric circles has the same number of impellers (2). Braiding machine according to claim 8, wherein in an intermediate space between at least two of the concentric circles at least one additional impeller (2) is arranged. Braiding machine according to one of the preceding claims 1 to 6, wherein a plurality of impellers (2) is arranged on the circumference of a cylinder, so that all clappers (1) are directed towards the axis of the cylinder or a plurality of impellers (2). is arranged on the surface of a hemisphere, so that all clappers (1) have the same distance to a braiding point located in the center of the hemisphere.

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