System for replacing spindles in braiding machines and spindle replacing braiding machine.

Abstract

The invention comprises a circuit (50) having a series of plates (1) with cut-outs (2,4) for receiving the spindles (3) with yarns that are braided with the yarns of the rest of the spindles, and first drive means (55), characterised in that it comprises: - at least one spindle-carrying device (20) comprising a spindle-carrier slide (24) with at least two cut-outs, a first (21) and a second (22), the first cut-out (21) receiving a spindle (23) and the second cut-out (22) being empty, - at least one rotation zone (52), in which the spindle-carrying slide (24) rotates, - at least one guide (51), along the inside of which the spindle-carrying device (20) moves, said guide being arranged between the circuit (50) and the rotation zone (52), and - second drive means (56) that move the spindle-carrying device (20) using the at least one guide (51) and rotate the pivoting zone (52).

Description

[0001] System for exchanging spindles on braiding machines and spindle-exchanging braiding machine.

[0002] DESCRIPTION

[0003] System for exchanging spindles in braiding machines and spindle-exchanging braiding machine of the type comprising a series of platens with cuts where the spindles are housed with threads that are braided with the threads of the rest of the spindles and first drive means characterized in that it comprises: - at least one spindle-holder device comprising a spindle-holder shoe with at least two cuts, a first and a second, a spindle being housed in said first cut and the second cut being empty, - at least one rotation zone, in which the spindle-holder shoe rotates, - at least one guide, along the interior of which the spindle-holder device moves, arranged between the circuit and the rotation zone, and - second drive means that move the spindle-holder device through the at least one guide and make the rotation zone rotate, and because: - in a first phase the spindle-holder shoe is positioned with the second cut facing the circuit,and the first cut that houses the spindle with the spindle thread being braided as the core of the thread being braided, - in a second phase, the circuit stops facing the spindle of the circuit plate with the second cut of the spindle-holder shoe, - in a third phase the spindle is transferred to the second cut leaving the plate cut empty, - in a fourth phase the spindle-holder device with the spindle moves along the guide to the turning area, - in a fifth phase, the spindle-holder device rotates leaving the spindle of the first cut facing the guide, - in a sixth phase the spindle-holder device moves along the guide until the spindle of the first cut is facing the plate cut, and - in a seventh phase the spindle of the first cut is transferred to the plate cut where it is housed.,

[0004] BACKGROUND OF THE INVENTION The use of colored filaments in braiding ropes has been known in the state of the art for decades.

[0005] A document in this field of technology is the Spanish Utility Model No. 32259 “A JUMP ROPE”, from 1952, in the name of DANCAS C. a LTDA, which refers to a jump rope, which is fundamentally characterized by being formed by a braid of unitary filaments of flexible but non-extensible plastic material, colored or not, and opaque or translucent.

[0006] This patent is a first starting point in which colored filaments are used in braiding.

[0007] Thus, European Patent No. 3492641 “BRAIDING MACHINE AND BRAIDING METHOD OF AN ENDLESS BRAIDED ROPE”, in the name of Duo Cai Long Textile (Shenzhen) Limited., dated 2018, belongs to the state of the art. The braiding machine and a braiding method of an endless braided rope. The braiding machine for the endless braided rope comprises a frame, a follower plate, a plurality of thread spools and a rope belt braiding mechanism.The plurality of thread spools are circularly mounted on the guide plate; colored threads and white threads are placed on the plurality of thread spools; the guide plate is divided into a first part and a second part, which can simultaneously move toward or away from each other; the rope belt braiding mechanism comprises a rope pressing mechanism and a rope guiding mechanism; the rope pressing mechanism is provided with two sets of belt pulleys; the two sets of belt pulleys are located above the thread spools and are mounted on the machine frame in parallel; the rope guiding mechanism is provided with a rope guiding wheel; the rope guiding wheel is rotatably movable; the braided rope is wound off the rope guiding wheel; and a rubber tube is disposed on the machine frame and located at the center of the follower plate.The endless braided rope braiding machine has simple structure, good stability and high output.

[0008] European Patent EP2239359 “DEVICE FOR MANUFACTURING A BRAIDED PRODUCT” from 2010 in the name of AUGUST HERZOG MASCHINENFABRIK GMBH & CO. KG is known, which relates to a device for manufacturing a braided product with at least two curved paths forming a sheath braiding circle, on which bobbins held by fin wheels are guided, and with a bobbin housing arranged inside the sheath braiding circle, in which further bobbins are held, wherein the bobbin housing and at least one of the curved paths are connected to one another by means of a bobbin replacement device and the bobbin housing has at least one fin wheel arranged inside the sheath braiding circle, characterized in that the bobbin replacement device has at least one rotating plate coaxially connected to the fin wheel,which has at least two curved path sections arranged in mirror symmetry with an axial plane of the turntable, wherein each curved path section is designed as an adjustment piece for an interruption of the curved path arranged in the braiding circle of the sheath.

[0009] Also known is Japanese Patent JPH0197253 “KNITTING METHOD IN TORSION LACE MACHINE”, in the name of NIPPON MAYER KK, dated 1987, which refers to PURPOSE: To obtain a high-efficiency flat double woven fabric by dividing yarns from multiple winders into two or more groups, weaving a plain double fabric from the individual groups, and assembling them. CONSTITUTION: This plain double fabric is formed by dividing yarns taken from multiple winders installed on several spindle shafts of a braiding machine into at least two knitting groups according to the color and types of yarns, assembling plain double woven fabrics comprising a surface and a back fabric each composed of each group of yarns, forming the plain double woven fabrics by connecting the plain double woven fabrics only at both ends of the fabrics.Patterns are formed by braiding two pairs of knitting yarns instantly interchanged in a suitable position as the constituent yarns of the opposite fabrics.

[0010] Worthy of note is Patent PCT W00121400 “A SYSTEM AND METHOD FOR PRODUCING A FLEXIBLE CABLE”, from 2001, in the name of WALL IND INC, which refers to a system and method for producing a flexible cable having good dielectric properties, including the steps of passing load-bearing core strands through a latex bath, drying the core strands in an oven, forming the core strands into a core of substantially parallel core strands, wrapping a neoprene tape around the core to completely encapsulate the core, braiding an outer jacket over the encapsulated neoprene core, passing the cable resulting from the previous steps through a latex bath, and curing the cable in an oven.The cable manufacturing process also includes applying electricity to the core before wrapping it with neoprene tape and detecting the amount of electricity flowing through the core as a measure of its dielectric properties. The neoprene tape is provided with a color that contrasts with the color of the outer jacket, so that the middle layer of neoprene tape provides a visual indicator of wear through the outer jacket.

[0011] BRIEF DESCRIPTION OF THE INVENTION

[0012] The present invention falls within the field of yarn braiding machines. The closest document is European Patent EP2239359.

[0013] This patent is proposed as another efficient possibility for connecting the core and the braiding of the sheath.

[0014] On the other hand, it has the disadvantage of being a very complex and expensive system, with two circuits, one internal and one external, which entails high economic costs of material and installation, as well as synchronization costs, since both circuits are moving, and to exchange one spindle for another, speeds have to be adjusted to fit one spindle with the other.

[0015] The present invention solves a double problem. On the one hand, it is a much more economical installation since it eliminates the internal circuit, and on the other hand, synchronization is much simpler and more direct, since the spindle to be exchanged only has to stop where required, without the need to adjust complex synchronization and speed settings.

[0016] Furthermore, this application can be applied to installations where only a single spindle needs to be changed, i.e., small installations, something that the closest document cannot do due to the need to use two circuits.

[0017] A first object of the present invention is a system for exchanging spindles in braiding machines of the type comprising a series of platens with cuts where the spindles are housed with threads that are braided with the threads of the rest of the spindles and first drive means characterized in that it comprises: - at least one spindle-holder device comprising a spindle-holder shoe with at least two cuts, a first and a second, a spindle being housed in said first cut and the second cut being empty, - at least one rotation zone, in which the spindle-holder shoe rotates, - at least one guide, along the interior of which the spindle-holder device moves, arranged between the circuit and the rotation zone, and - second drive means that move the spindle-holder device through the at least one guide and make the rotation zone rotate, and because: - in a first phase the spindle-holder shoe is positioned with the second cut facing the circuit,and the first cut that houses the spindle with the spindle thread being braided as the core of the thread being braided, - in a second phase, the circuit stops facing the spindle of the circuit plate with the second cut of the spindle-holder shoe, - in a third phase the spindle is transferred to the second cut leaving the plate cut empty, - in a fourth phase the spindle-holder device with the spindle moves along the guide to the turning area, - in a fifth phase, the spindle-holder device rotates leaving the spindle of the first cut facing the guide, - in a sixth phase the spindle-holder device moves along the guide until the spindle of the first cut is facing the plate cut, and - in a seventh phase the spindle of the first cut is transferred to the plate cut where it is housed.,

[0018] A second object of the present invention is a spindle-exchanging braiding machine according to the system of claim 1, comprising a circuit, said circuit comprising a series of plates with cuts where the spindles are housed with threads that are braided with the threads of the rest of the spindles, and first drive means characterized in that it comprises: - at least one spindle-holder device comprising a spindle-holder shoe with at least two cuts, a first and a second, a spindle being housed in said first cut and the second cut being empty, - at least one rotation zone, in which the spindle-holder shoe rotates, - at least one guide, through the interior of which the spindle-holder device moves, arranged between the circuit and the rotation zone, and - second drive means that move the spindle-holder device through the at least one guide and rotate the rotation zone. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to facilitate the explanation, nine sheets of drawings are attached to this report in which a practical case of implementation has been represented, which is cited as an example, not limiting the scope of the present invention:

[0020] - Figure 1 is a general perspective view of the invention with a single spindle-holder device,

[0021] - Figure 2 is a plan view of the previous figure,

[0022] - Figure 3 is a view of the spindle holder device, and a partial view of the circuit and its plates interacting with the spindle holder device,

[0023] - Figure 4 is a partial lower section along line VV of Figure 4, in relation to the connection area between the spindle and the spindle-bearing shoe,

[0024] - Figure 5 is a bottom perspective view of the spindle bearing slide, the guide and the turning area,

[0025] - Figure 6 is a perspective view of the spindle bearing shoe,

[0026] - Figure 7 is a plan view of the turning area and the guide,

[0027] - Figure 8 is a plan view of an embodiment with multiple spindle-holder devices, and

[0028] - Figure 9 is a bottom view of the previous figure.

[0029] SPECIFIC EMBODIMENT OF THE PRESENT INVENTION

[0030] Thus, Figure 1 shows a chassis 5, a circuit 50, some plates 1, some cuts 2, some spindles 3, 23, and some first drive means 55. Figure 2 shows the chassis 5, the circuit 50, the plates 1, the cuts 2, the spindles 3, 23, the first drive means 55, a spindle-holder device 20 and a turning area 52.

[0031] Figure 3 shows the plates 1, the cuts 2, the spindles 3, 23, the spindle-holder device 20, the turning area 52, a disc 57, some deviators 6, a spindle-holder shoe 24 and some second drive means 56.

[0032] Figure 4 shows an example of spindle 3 with its guide fins 60, the spindle-holder shoe 24, a first cut 21, and a first channel 54.

[0033] Figure 5 shows the spindle-holder shoe 24, the first cut 21, a first channel 54, a second cut 59, guiding elements 53, the disc 57 and housings 58.

[0034] In figure 6 the spindle bearing shoe 24, the first cut 21, a second cut 22, the first channel 54 and second channel 59 have been drawn.

[0035] In figure 7 the rotation zone 52 has been drawn with the disc 57 and the housings 58, and some guides 51.

[0036] Figure 8 shows the chassis 5, the circuit 50, the plates 1, the cuts 2,4, the spindles 3,23, the first drive means 55, a spindle holder device 20 and a turning area 52.

[0037] Finally, Figure 9 shows the chassis 5, the first drive means 55 and the drive means 56.

[0038] Thus, the system for exchanging spindles in braiding machines, the object of the present invention, comprises a closed circuit 50 with a series of consecutively arranged plates 1. The plates 1 comprise cuts 2, 4 in which the spindles 3 are housed, with threads that are braided with the threads of the other spindles.

[0039] It also comprises first drive means 55 that rotate the plates 1 of the circuit 50.

[0040] The system also comprises at least one spindle-holder device 20 (as will be seen later, there are embodiments with a single spindle-holder device 20, Figure 1, and others with more than one, Figure 8) comprising a spindle-holder shoe 24 with at least two cuts, a first 21 and a second 22, with a spindle 23 housed in said first cut 21 and the second cut 22 being empty, that is, the spindle-holder shoe 24 has one cut, in this case the second cut 22, empty, so that the spindles can subsequently be exchanged with the circuit 50.

[0041] It also comprises at least one rotation zone 52, a rotation zone for the spindle-holder device 20, which allows the spindle-holder shoe 24 to rotate, reversing the position of the cuts 21, 22.

[0042] It has at least one guide 51, in this embodiment there are two, but it could be configured so that there is only one, along the inside of which the spindle-holder device 20 moves, the guide 51 being arranged between the circuit 50 and the turning area 52.

[0043] It also comprises second drive means 56 that move the spindle-holder device 20 through the guide 51, which is at least one, and rotate the rotation zone 52, so that the spindles 3, 23 that it transports change their position with respect to the circuit 50.

[0044] Thus, in a first phase, the spindle-holder shoe 24 is positioned with the second cut 22 facing the circuit 50, and the first cut 21 housing the spindle 23 with the thread of the spindle 23 being braided as the core of the thread being braided.

[0045] In a second phase, the circuit 50 stops, facing the spindle 3 of the plate 1 of the circuit 50 with the second cut 22 of the spindle-holder shoe 24, which is empty.

[0046] In a third phase, spindle 3 is transferred to the second cut 22, leaving cut 4 of plate 1 empty.

[0047] In a fourth phase, the spindle holder device 20 with the spindle 3 in the second cut 22 moves along the guide 51 to the turning area 52.

[0048] In a fifth phase, the spindle holder device 20 rotates so that the spindle 23 of the first cut 21 faces the guide 51.

[0049] In a sixth phase, the spindle-holder device 20 moves along the guide 51 until the spindle 23 of the first cut 2 faces the cut 4 of the platen 1.

[0050] Finally, in a seventh phase, spindle 23 is transferred from the first cut 21 to cut 4 of plate 1 where it is housed.

[0051] Optionally, the system may comprise a series of spindle-holder devices 20 arranged equidistant from one another (Figures 8 and 9), such that various changes can be made. These spindle-holder devices 20 could be driven by the second drive means 56, one for each spindle-holder device 20.

[0052] The spindle-holder shoe 24 could also be configured to comprise at least three cuts, a first 21, a second 22 and a third, equidistant from each other, in such a way that two threads could be braided in the core and the possibility of exchanging two spindles, instead of one as in Figure 1, at different times, at the will of the operator.

[0053] Another option would be for the spindle-holder shoe 24 to comprise a first channel 54 next to the first cut 21 and a second channel 59 next to the second cut 22 where some guide fins 60 of the spindle 23 are positioned (which already exist in the spindle), which in a passive position immobilize the spindle 23 in the spindle-holder shoe 24 and which, in an active position, once the spindle 23 is located within the circuit 50, guide the spindle 23 in its passage through some diverters 6. This option is very useful because mechanically it has few complications, and on the contrary it is very effective, since it uses a part of the spindle as the guide fins 60, so that they serve as a means to prevent the spindle from moving from inside the spindle-holder shoe 24.

[0054] Among the possibilities of moving the spindle-holder shoe 24 along the guide, it has optionally been designed that the spindle-holder shoe 24 comprises guiding elements 53 that move along the guide 51, which is at least one, and the rotation area 52 comprises a disc 57 with housings 58 in which the guiding elements 53 are housed during the rotation maneuver. In the rest position, one of the guiding elements 53 is already located inside one of the housings 58, as shown in Figure 5, such that when the disc 57 rotates, it drags the guiding element 53 which moves the spindle-holder shoe 24. Subsequently, when a spindle has to be exchanged again, the operation is performed in the opposite direction.

[0055] Thus, the spindle-exchanging braiding machine according to the system described above comprises a circuit 50, said circuit 50 comprising a series of plates 1 with cuts 2, 4 where the spindles 3 are housed with threads that are braided with the threads of the rest of the spindles, and first drive means 55. It also comprises at least one spindle-holder device 20 comprising a spindle-holder slide 24 with at least two cuts, a first 21 and a second 22, a spindle 23 being housed in said first cut 21 and the second cut 22 being empty,

[0056] It also comprises at least one rotation zone 52, where the spindle bearing shoe 24 rotates, and the spindles are changed in orientation.

[0057] It has at least one guide 51, along the interior of which the spindle-holder device 20 moves, arranged between the circuit 50 and the rotation zone 52, and second drive means 56 that move the spindle-holder device 20 through the guide 51, which is at least one, and make the rotation zone 52 rotate.

[0058] Optionally, the machine comprises a series of spindle-holder devices 20 arranged equidistantly from each other as illustrated in figures 8 and 9.

[0059] Another construction option is that the spindle-holder slide 24 comprises at least three cuts, a first 21, a second 22 and a third, equidistant from each other, transporting two spindles, thus adding a possible spindle change with the same spindle-holder device 20.

[0060] Another construction option is that the spindle-holder shoe 24 comprises a first channel 54 next to the first cut 21 and a second channel 59 next to the second cut 22 where guiding fins 60 of the spindle 23 are positioned, which in a passive position immobilize the spindle 23 in the spindle-holder shoe 24 and which, in an active position, once the spindle 23 is located within the circuit 50, guide the spindle 23 in its passage through diverters 6.

[0061] Optionally, the second drive means 55 are one for each spindle-holder device 20, as shown in Figure 9. It would be possible for the spindle-holder shoe 24 to comprise guiding elements 53 that move along the guide 51, which is at least one, and the rotation zone 52 comprises a disc 57 with housings 58 in which the guiding elements 53 are housed during the rotation maneuver.

[0062] In a specific embodiment, the operator would start the machine and the circuit 50 would begin to rotate thanks to the first drive means 55.

[0063] In this way, the spindles 3 pass from plate 1 to plate by means of the diverting fins 60 that each spindle 3 has in its lower area and when plate 1 rotates half a circle, spindle 3 jumps to the next plate 1 thanks to the diverters 6.

[0064] When you want the thread that is braided as the core to be braided on the outer part, the visible part, for example, because a thread is being manufactured for medical use and the change of thread determines the possibility of introducing a brand for medical personnel, you would proceed as follows.

[0065] Circuit 50 reduces speed until it stops and faces spindle 3 with spindle holder device 20.

[0066] At the moment it has stopped, the guide fins 60 of the spindle 3 are located within the first channel 54 of the first cut 21 of the spindle carriage 24.

[0067] That is, the first channel 21 is also part of circuit 50.

[0068] The second drive means 56 then rotates the disc 57 in the rotation area 52. Since the guide element 53 is already housed in the housings 58 of the disc 57, at the moment the disc 57 rotates, it drives the guide element 53 which moves the spindle-holder shoe 24 and the spindle-holder device 20.

[0069] The guiding element 53, in this embodiment, has two lugs, a first one that is already housed in a housing 58 and a second one that moves along the guide 51 until it fits into the second housing.

[0070] When said movement of displacement of the spindle-holder shoe 24 occurs, the first channel 21 also moves and the spindle 3, since its guide fins 60 are within the first channel 21, also separates, separating from the circuit 50.

[0071] As the disk 57 rotates, the first pin of the guiding elements 53 enters the guide 51 and directs the spindle-holder device 20 towards the circuit 50, but the spindle 23 is now the one that faces the cut 4 of the plate 1.

[0072] At the same time, the second pin is located inside the housing, in such a way that when the spindle is changed again, the movement of the disk 57 will be a rotation in the opposite direction, and will drag, just as previously explained, the spindle-holder shoe 24.

[0073] That is, the final position of the spindle-holder shoe 24 is with the second channel 59 forming part of the circuit 50 and the spindle 23, with its guide fins 60 inside the second channel 59, in the cut 4 of the plate 1, that is, the same position that the spindle 3 defined when the circuit 50 was stopped facing the spindle 3 with the spindle-holder device 20.

[0074] The circuit 50 is then moved again by means of the first drive means 55 and the spindle 23 rotates inside the plate 1 , braiding. When the section of the mark of a different material or color carried by the thread of the spindle 23 has been completed, the same operation as explained above will be carried out and the spindle 3 will be returned to the plate 1 . An embodiment in which the circuit 50 has different spindle-holder devices 20 for changing is explained in Figures 8 and 9.

[0075] In this case, the operations could be performed one by one, or if the system has been synchronized, a multiple changeover could be performed on circuit 50 of several spindles at once. This is because each spindle-holder device

[0076] 20 carries a second drive means 56 independently.

[0077] The present invention describes a novel system for spindle exchange in braiding machines and a spindle-exchanging braiding machine. The examples mentioned herein are not limiting of the present invention; therefore, it may have various applications and / or adaptations, all within the scope of the following claims.

Claims

MODIFIED CLAIMS received by the International Bureau on April 14, 2025 (14.04.2025) 1.- System for the exchange of spindles (3, 23) in braiding machines of the type comprising a circuit (50) comprising a series of plates (1) with cuts (2,4) where the spindles (3, 23) are housed with threads that are braided with the threads of the rest of the spindles and first drive means (55) characterized in that it comprises: - at least one spindle-holder device (20) comprising a spindle-holder shoe (24) with at least two cuts, a first (21) and a second (22), wherein a spindle (23) is adapted to be housed in said first cut (21) and the second cut (22) being empty, - at least one rotation zone (52), in which the spindle bearing shoe (24) rotates, - at least one guide (51), inside which the spindle-holder device (20) is adapted to move, arranged between the circuit (50) and the rotation zone (52), and - second drive means (56) that move the spindle-holder device (20) through the guide (51) which is at least one and rotate the rotation zone (52), and is also adapted to perform the following steps: - in a first phase the spindle-holder shoe (24) is placed with the second cut (22) facing the circuit (50), and the first cut (21) that houses the spindle (23) with the thread being braided, - in a second phase, the circuit (50) stops facing the spindle (3) of one of the plates (1) of the circuit (50) with the second cut (22) of the spindle-holder shoe (24), - in a third phase the spindle (3) of the plate (1 ) of the circuit (50) is transferred to the second cut (22) leaving the cut (4) of the plate (1 ) empty, - in a fourth phase the spindle holder device (20) with the spindle (3) the second cut (22) moves along the guide (51) to the turning zone (52), - in a fifth phase, the spindle holder device (20) rotates so that the spindle (23) of the first cut (21) faces the guide (51), - in a sixth phase the spindle holder device (20) moves along the guide (51) until the spindle (23) of the first cut (21) faces the cut (4) of the platen (1), and - in a seventh phase the spindle (23) is transferred from the first cut (21) to the cut (4) of the plate (1) where it is housed. 2.- System, according to claim 1, characterized in that it comprises a series of spindle-holder devices (20) arranged equidistant from each other. 3.- System, according to claim 1 or 2, characterized in that the spindle-holder shoe (24) comprises at least three cuts, a first (21), a second (22) and a third, equidistant from each other. 4.- System, according to claim 1, characterized in that the spindle-holder shoe (24) comprises a first channel (54) next to the first cut (21) and a second channel (59) next to the second cut (22) where guiding fins (60) of the spindle (3, 23) are positioned, which in a passive position immobilize the spindle (3, 23) in the spindle-holder shoe (24) and which, in an active position, once the spindle (23) is located within the circuit (50) guide the spindle (23) in its passage through diverters (6). 5.- System, according to claim 2, characterized in that the second drive means (56) are one for each spindle-holder device (20). 6.- System, according to claim 1, characterized in that the spindle-holder shoe (24) comprises guiding elements (53) that move along the guide (51), which is at least one, and the turning area (52) comprises a disk (57) with housings (58) in which the guiding elements (53) are housed during the turning maneuver. 7.- Spindle-exchanging braiding machine (3, 23) according to the system of claim 1, comprising a circuit (50), said circuit (50) comprising a series of plates (1) with cuts (2,4) where the spindles (3, 23) are housed with threads that are braided with the threads of the rest of the spindles, and first drive means (55) characterized in that it comprises - at least one spindle-holder device (20) comprising a spindle-holder shoe (24) with at least two cuts, a first (21) and a second (22), wherein a spindle (23) is adapted to be housed in said first cut (21) and the second cut (22) being empty, - at least one rotation zone (52), in which the spindle bearing shoe (24) rotates, - at least one guide (51), inside which the spindle-holder device (20) is adapted to move, arranged between the circuit (50) and the rotation zone (52), and - second drive means (56) that move the spindle-holder device (20) through the guide (51), which is at least one, and rotate the rotation zone (52). 8.- Machine, according to claim 7, characterized in that it comprises a series of spindle-holder devices (20) arranged equidistant from each other. 9.- Machine, according to claim 7 or 8, characterized in that the spindle-holder shoe (24) comprises at least three cuts, a first (21), a second (22) and a third, equidistant from each other.

10. Machine according to claim 7, characterized in that the spindle-holder shoe (24) comprises a first channel (54) next to the first cut (21) and a second channel (59) next to the second cut (22) in which guide fins (60) of the spindle (23) are positioned, which in a passive position immobilize the spindle (23) in the spindle-holder shoe (24) and which, in an active position, once the spindle (23) is located within the circuit (50) guide the spindle (23) in its passage through diverters (6).

11. Machine according to claim 8, characterized in that the second drive means (55) are one for each spindle-holder device (20). 12.- Machine according to claim 7, characterized in that the spindle-holder shoe (24) comprises guiding elements (53) that move along the guide (51), which is at least one, and the turning area (52) comprises a disk (57) with housings (58) in which the guiding elements (53) are housed during the turning maneuver.

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