JP2013026359A - Multi-wire winding method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To wind even a plurality of wires in an array while putting a payoff end of a payoff tool which pays off the plurality of wires close to an outer periphery of a core.SOLUTION: A multi-wire winding method includes: wiring the outer periphery of a core with a plurality of wires 12-14 which are paid off having their center axes arranged at predetermined intervals L in an axial direction of the core; and winding the outer periphery of the core with a plurality of wires, newly paid off each time the plurality of wires are wound around the core once, in an array while moving the wire material by a predetermined quantity T in the axial direction of the core. Representing a gap between the centers of wire materials adjoining each other after being arrayed in the axial direction of the core as a desired pitch P, the quantity obtained by multiplying the number of the plurality of wires by the desired pitch P is a predetermined quantity T, and an interval obtained by adding the desired pitch P to a natural multiple of the predetermined quantity T is a predetermined interval L. Here, a natural number for finding the predetermined interval L is preferably 1.

Description

  The present invention relates to a multiple wire winding method in which a plurality of wires are aligned and wound around the outer periphery of a core.

  Conventionally, as a technique for aligning and winding a plurality of wires fed from a wire feeding tool around the outer periphery of a core that rotates around an axis, a plurality of nozzles corresponding to the number of the plurality of wires are used as a feeding tool. 2. Description of the Related Art A winding device that winds a plurality of wires fed from nozzles around the outer periphery of a core is known (for example, see Patent Document 1). FIG. 5 shows an outline of the apparatus. In this winding device, in addition to means for rotating the winding core 4, a holder 1 for rotating a plurality of nozzles as feeding tools is provided, and the holder 1 is rotated and attached to the holder 1 together with the holder 1. The plurality of nozzles 2 and 3 are rotated as indicated by the + or − arrows in FIG. Then, the end portions of the nozzles 2 and 3 from which the wire rods 6 and 7 are actually fed are arranged in a direction substantially orthogonal to the core 4, and a plurality of wire rods 6 that are fed from the nozzles 2 and 3 toward the core 4. , 7 is eliminated, and the plurality of wires 6 and 7 are brought into close contact with each other. By winding the plurality of wire rods 6 and 7 which are respectively fed out from the plurality of nozzles 2 and 3 as the feeding tool and are in close contact with each other, the plurality of the wire rods 6 and 7 are wound around the rotating core 4 as indicated by the arrows in this state. The wire rods 6 and 7 can be aligned and wound around the core 4.

JP 2008-198955 A (paragraph numbers [0006] to [0013], FIG. 10)

  Here, since the nozzles 2 and 3 which are feeding tools guide the wire rods 6 and 7 to a desired position of the core 4, the end portions of the nozzles 2 and 3 from which the wire rods 6 and 7 are actually fed The distance M to the core 4 is preferably as short as possible. However, in the conventional winding device, a plurality of nozzles 2 and 3 corresponding to the number of the plurality of wire rods 6 and 7 are used, and the wire rods 6 and 7 are separately fed from the plurality of nozzles 2 and 3, In the state where the plurality of nozzles 2 and 3 are arranged in the axial direction of the core 4, the wire rods 6 and 7 separately fed from the plurality of nozzles 2 and 3 are brought into close contact with each other at the stage of feeding. Can not. For this reason, in the said conventional winding apparatus, the holder 1 is rotated and the edge part of the nozzles 2 and 3 is arranged in the direction substantially orthogonal to the core 4. FIG.

  However, when the end portions of the nozzles 2 and 3 are arranged in a direction substantially orthogonal to the core 4, even if one nozzle 3 is brought closer to the core 4, the other nozzle 2 is always moved away from the core 4. Thus, there is a problem that the distance M between the end of the other nozzle 2 where the wire 6 is actually fed and the core 4 is increased. When the distance M from the end of the nozzle 2 through which the wire 6 is fed out to the core 4 is increased, the amount of the wire fed out from the nozzle 2 is shifted in the width direction before reaching the core 4. To increase. Then, the distance between the adjacent wire rods 7 changes, and so-called aligned winding in which the wire rods 6 and 7 are wound around the core 4 while keeping the distance to the adjacent wire rods 7 constant is difficult. There is a bug.

  In particular, the number of wire rods to be aligned and wound is not two as shown in FIG. 5; for example, when the number of wires increases to three or more, the number of nozzles as wire rod feeding tools increases in proportion to the number. To do. Then, to avoid all of these increased nozzles from interfering with each other, the distance of the increased nozzles from the core is further increased. Then, since the amount of the wire rod fed out from these nozzles shifts in the width direction before reaching the core also increases, when the number of wire rods increases, in proportion to the increased number of wire rods, There is a tendency that it becomes increasingly difficult to wind all the wires in an aligned manner.

  In order to eliminate this point, it is conceivable to feed a plurality of wire rods in close contact with each other from a single nozzle. However, when a plurality of wire rods are fed from a single nozzle, the plurality of wire rods are reversed. When there is a desire to create a gap between the wires, there is a problem that it is difficult to adjust the gap between the wires.

  An object of the present invention is to provide a multi-wire winding method capable of winding in an aligned manner in a state where a feeding end of a feeding tool for feeding out the plurality of wires is brought close to the outer periphery of the core even when there are a plurality of wires. It is in.

  The multiple wire winding method of the present invention winds a plurality of wire rods that are fed out at predetermined intervals between the central axes in the axial direction of the core, and winds the plurality of wire rods around the outer periphery of the core. This is a method of winding a plurality of wire rods on the outer periphery of the core by moving a plurality of wire rods newly drawn out each time the core is wound once by a predetermined amount in the axial direction of the core.

  The characteristic point is that the desired pitch is adjusted by a predetermined amount and a predetermined interval when a desired pitch is formed between the centers in the axial direction of the winding core of the adjacent wire wound around the winding core. It is in. Specifically, an amount obtained by multiplying the number of a plurality of wires by a desired pitch is set as a predetermined amount, and an interval obtained by adding a desired pitch to a value that is a natural number multiple of the predetermined amount is set as a predetermined interval, and the desired pitch is set. It is preferable to adjust.

  In this multi-wire winding method, it is preferable that the natural number for obtaining the predetermined interval is 1, and a plurality of wires are fed through a feeding tool in which a plurality of guide pins are arranged at equal intervals on the base plate. In this case, it is preferable to finely adjust the predetermined interval by tilting the feeding tool.

  In this specification, the term “aligned winding” means a winding in which a wire is wound in a line in the axial direction of the core without overlapping the core in the radial direction of the core. It includes both windings in which the adjacent wires in the axial direction are in close contact with each other and no gap is generated between them, and windings in which a desired gap is generated between the adjacent wires.

  In the multiple wire winding method of the present invention, the desired pitch between the centers in the axial direction of the winding core of the adjacent wire wound around the winding core is adjusted, but the desired pitch is set to the number of the plurality of wire rods. Since the multiplied amount is a predetermined amount, and an interval obtained by adding a desired pitch to a value that is a natural number multiple of the predetermined amount is a predetermined interval in the axial direction of the cores of a plurality of wire rods, The wire that is fed toward the core and first fed from the front side in the winding direction is shifted by a predetermined amount in the core axis direction while being wound several times on the core that is rotated several times in the natural direction. On the other hand, the distance between the preceding wire and the next-positioned wire is an interval obtained by adding a desired pitch to the predetermined amount. Therefore, when the previous wire is naturally wound several times, The next wire is guided to a position adjacent to the position which has been wound by a desired pitch from the position already wound several times. For this reason, when the winding core is further rotated, the next wire is wound around the winding core sequentially at equal intervals in a state adjacent to the previously wound wire by a desired pitch. Become.

  Therefore, in the multiple wire winding method of the present invention, even when a plurality of wires are spaced apart from each other, the next wire is wound around the core in a state adjacent to the previous wire by a desired pitch. The so-called aligned winding is made. In spite of being aligned and wound in this way, a predetermined interval can be provided between the plurality of wire rods. Therefore, even if the feeding tool for feeding out the plurality of wire rods is, for example, a plurality of nozzles, It is possible to bring the ends of these nozzles closer to the core without overlapping the nozzles. Then, by bringing the feeding end portion of the feeding tool closer to the core, it is possible to prevent the plurality of wires fed from the feeding tool from shifting in the width direction until reaching the core, and the predetermined amount from the feeding tool. A plurality of wire rods fed out side by side with an interval of can be immediately wound around the core in the state of being arranged without changing the predetermined interval. Accordingly, it is possible to accurately align and wind a plurality of wires on the winding core at a desired pitch.

It is a front view which shows the state of the multiple winding of embodiment of this invention. It is a front view corresponding to FIG. 1 which shows the state which tilted the feeding tool to one side. It is a front view corresponding to FIG. 1 which shows the state which inclined the feeding tool to the other. It is a front view corresponding to FIG. 1 which shows the state of the other multiple winding. It is a conceptual diagram which shows the state of the conventional multiple winding.

  Next, the best mode for carrying out the present invention will be described with reference to the drawings.

  As shown in FIG. 1, the multiple wire winding method of the present invention includes a plurality of wire rods 12 to 14 that are drawn out in a line at predetermined intervals L between the central axes in the axial direction of the core 11. 11 is wound around the outer periphery of the wire 11, and each time the wires 12 to 14 are wound around the core 11, the wires 12 to 14 newly fed out are moved by a predetermined amount T in the axial direction of the core 11. In this winding method, a plurality of wires 12 to 14 are aligned and wound around the outer periphery of the core 11.

  As the core 11 in FIG. 1, a case where a pin or a rod having a circular cross section and a relatively long length is used is shown. The plurality of wires 12 to 14 are so-called round wires having a circular cross section supplied from a wire supply mechanism (not shown), and in the figure, the three wires 12 to 14 having the same outer diameter are the cores 11. The case where it is aligned and wound on the outer periphery is shown. Note that the core 11 is not limited to a circular cross section, and may have a square cross section. Moreover, even if it exists in the wire rods 12-14, it is not restricted to the case of what is called a round wire, The wire rods 12-14 may be what is called a square wire in which the cross section forms a square.

  Three wire rods 12 to 14 supplied from a wire rod supply mechanism (not shown) are fed by the feeding tool 20 in the axial direction of the core 11 so that the central axes thereof are arranged at predetermined intervals L. The feeding tool 20 in this embodiment includes a base plate 21 provided along the core 11 and the base plate 21 arranged in the axial direction of the core 11 between the central axes at equal intervals N. And three guide pins 22 to 24 provided. The feeding tool 20 is configured to be movable in the axial direction of the core 11 along the core 11, and after the three wires 12 to 14 are fed along the three guide pins 22 to 24. The three wires 12 to 14 are configured to be guided by the core 11. An interval N between the three guide pins 22 to 24 is formed to be the same as a predetermined interval L, whereby the three wires 12 to 14 fed out by the feeding tool 20 are in the axial direction of the core 11. Are arranged at predetermined intervals L.

  A feature of the multiple wire winding method of the present invention is that when a desired pitch P is set between the centers in the axial direction of the cores 11 of the adjacent wire rods 12 to 14 wound around the core 11, the desired pitch P is obtained. The pitch P is adjusted by a predetermined amount T and a predetermined interval L. Specifically, an amount obtained by multiplying the number of the plurality of wire rods 12 to 14 by the desired pitch P is defined as a predetermined amount T, and an interval obtained by adding the desired pitch P to a value that is a natural number multiple of the predetermined amount T is predetermined. The interval L of That is, while the plurality of wires 12 to 14 are wound around the core 11 once, the predetermined amount T that is the amount to move the wires 12 to 14 in the axial direction of the core 11 and the feeding tool 20 A predetermined interval L in the axial direction of the core 11 of the plurality of wires 12 to 14 is determined by a desired pitch P between the adjacent wires 12 to 14 after the wires 12 to 14 are wound around the core 11. The desired pitch P can be changed at equal intervals by the predetermined amount T and the predetermined interval L.

  In FIG. 1, the adjacent pitches 12 to 14 are wound around the core 11 with the desired pitch P between the adjacent wires 12 to 14 after the wires 12 to 14 are aligned and wound as the outer diameter of the wires 12 to 14. The case where no gap is generated between them is shown. In the winding to the so-called winding core 11, the plurality of wire rods 12 to 14 are wound around the outer periphery of the winding core 11 while being fed from the feeding tool 20, and the plurality of wire rods 12 to 14 are wound around the winding core 11 once. The winding tool 20 is moved by a predetermined amount T in the axial direction of the core 11 while being wound.

  The predetermined amount T in the present invention is an amount obtained by multiplying the number of the plurality of wires 12 to 14 by the desired pitch P. For this reason, as in this embodiment, when the three wire rods 12 to 14 are used and no gap is generated between them, the predetermined amount T is 3 of the wire rod outer diameter which is the desired pitch P. Doubled.

  On the other hand, the predetermined interval L in the axial direction of the winding core 11 of the plurality of wire rods 12 to 14 fed from the feeding tool 20 is set to a value obtained by adding a desired pitch P to a value that is a natural number multiple of the predetermined amount T. . FIG. 1 shows a case where the natural number for obtaining the predetermined interval L is 1. That is, the predetermined interval L in FIG. 1 is an interval (T + P) obtained by adding a desired pitch P to a predetermined amount T.

  In this way, when the predetermined amount T and the predetermined interval L are determined and the feeding tool 20 is moved in the direction of arrow A in the figure while winding the plurality of wire rods 12 to 14 around the core 11, first, the core 11 The first wire 12 that is fed from the feeding tool 20 by the first rotation and that is at the head in the moving direction of the feeding tool 20 is shifted by a predetermined amount T in the core axis direction while being wound around the core 11 once.

  On the other hand, the interval between the first wire 12 at the head and the second wire 13 positioned next to the first wire 12 is an interval L obtained by adding a desired pitch P to the predetermined amount T. Therefore, as shown in FIG. When the wire 12 is wound once, the second wire 13 is guided to a position adjacent to the first wire 12 with a desired pitch P delayed from the already wound position. For this reason, when the winding core 11 rotates, the second wire 13 is adjacent to the already wound first wire 12 with a desired pitch P deviation, and in that state, the winding is sequentially wound around the winding core 11 at equal intervals. Will be attached.

  Similarly, since the interval between the second wire 13 and the third wire 14 located at the end in the traveling direction of the feeding tool 20 is an interval L obtained by adding a desired pitch P to the predetermined amount T, the first wire 12 is wound twice and the second wire 13 is wound once, the feeding tool 20 moves the second wire 13 from the already wound position to the adjacent position with a desired pitch P delay. The three wires 14 are guided. Then, the winding core 11 is rotated and adjacent to the already wound second wire 13 with a desired pitch P shift, and the third wire 14 is wound around the winding core 11 in the adjacent state. Here, the predetermined amount T, which is the amount that the feeding tool 20 moves while the wires 12 to 14 are wound around the core 11 once, is an amount obtained by multiplying the number of the wires 12 to 14 by a desired pitch P. In the state where the third wire 14 is wound around the core 11 adjacent to the second wire 13, the three wires 12 to 14 adjacent to and wound around the core 11 are between the predetermined amount T. Can be stored. For this reason, if the desired pitch P is the outer diameter of the wire rods 12 to 14, no gap is generated between the adjacent wire rods 12 to 14 while being wound around the core 11. -14 are closely attached to each other to obtain a coil that is wound in a line at equal intervals.

  With such a winding method, the plurality of wire rods 12 to 14 are aligned and wound around the core 11 at a desired pitch P even though the plurality of wire rods 12 to 14 are spaced at a predetermined interval L. be able to. Therefore, the guide pins 22 to 24 overlap each other by keeping the diameter of the guide pins 22 to 24 in the feeding tool 20 that leaves a predetermined interval L between the plurality of wires 12 to 14 to the outer diameter of the wires 12 to 14. It is possible to bring the feeding end portion of the feeding tool 20 closer to the core 11 while avoiding this. When the feeding end portion of the feeding tool 20 is brought close to the core 11, it is prevented that the plurality of wires 12 to 14 fed from the feeding tool 20 shift in the width direction before reaching the core 11. Then, the plurality of wire rods 12 to 14 fed out side by side with a predetermined interval L from the feeding tool 20 are immediately wound around the core 11 in the state in which the predetermined interval L does not change. be able to. Therefore, if the desired pitch P is the outer diameter of the wire rods 12 to 14, it is possible to reliably obtain a coil in which the plurality of wire rods 12 to 14 are closely wound.

  In addition, as shown in FIG. 1, the guide cores 22 to 24 are provided with three guide pins 22 to 24 provided in the axial direction of the core 11 so as to be arranged at intervals N equal to a predetermined interval L between the central axes. 2 and 3, when the base plate 21 is tilted together with the guide pins 22 to 24 as indicated by broken arrows, a plurality of guide pins 22 to 24 are guided. The predetermined interval L in the axial direction of the core 11 between the wires 12 to 14 can be slightly changed.

  That is, when the plurality of wires 12 to 14 newly fed out while winding the plurality of wires 12 to 14 around the core 11 are moved in the axial direction of the core 11, the plurality of wires 12 to 14 newly fed out. Is inclined at a predetermined angle θ with respect to the core 11. For this reason, as shown in FIG. 2, when the base plate 21 is tilted in the same direction as the inclination of the wire rods 12 to 14 together with the guide pins 22 to 24, the axial direction of the core 11 between the plurality of wire rods 12 to 14 is increased. The predetermined interval L gradually increases. And like the inclination of the some wire rods 12-14, the predetermined space | interval L is the value which remove | divided the space | interval N of the guide pins 22-24 by (cos (theta)) in the step in which the feeding tool 20 inclined by the predetermined angle (theta). Thus, the maximum value is shown. On the other hand, as shown in FIG. 3, when the base plate 21 is tilted together with the guide pins 22 to 24 in the direction opposite to the inclination of the wires 12 to 14, a predetermined axial direction of the core 11 between the plurality of wires 12 to 14 is achieved. The interval L is gradually reduced according to the tilt angle of the feeding tool 20.

  For this reason, in the case where the plurality of wire rods 12 to 14 are fed out through the feeding tool 20 in which the plurality of guide pins 22 to 24 are arranged at equal intervals N on the base plate 21, FIG. 2 and FIG. By tilting the feeding tool 20 as shown, the predetermined interval L can be slightly changed and adjusted without moving the feeding ends of the wire rods 12 to 14 in the feeding tool 20 so far from the core 11. Therefore, it may be possible to slightly change and adjust the predetermined interval L as necessary before or during the winding, and more accurately align the plurality of wires 12 to 14 with the desired pitch P on the core 11. It can also be wound.

  FIG. 4 shows another embodiment of the present invention. In FIG. 4, the feeding tool 30 that feeds out the three wire rods 12 to 14 includes three nozzles 31 to 33 that feed out the wire rods 12 to 14 separately, and a predetermined interval L is set. The case where the desired natural number is 2 is shown. The predetermined interval L is an interval obtained by adding a desired pitch P to a value that is a natural number multiple of the predetermined amount T. Since the natural number for obtaining the predetermined interval L is 2, the predetermined interval L is equal to the predetermined amount T. The interval (2T + P) is obtained by adding the desired pitch P to the doubled value.

  Under this condition, when winding of the plurality of wire rods 12 to 14 is started, each time the plurality of wire rods 12 to 14 are wound around the winding core 11, the three nozzles 31 to 33 as the feeding tool 30 are mutually connected. The wire L is moved in the direction of arrow A in the figure without changing the interval L, and the plurality of wires 12 to 14 newly fed out from the nozzles 31 to 33 are moved by a predetermined amount T in the axial direction of the core 11. Then, first, the core wire 11 is fed from the first nozzle 31 by the first rotation of the winding core 11 and the leading first wire 12 in the moving direction of the feeding tool 30 is wound around the winding core 11 once. Is shifted by a predetermined amount T. On the other hand, the interval between the first wire 12 at the head and the second wire 13 positioned next is the interval L obtained by adding a desired pitch P to a value twice the predetermined amount T. As shown in the drawing, when the first wire 12 is wound twice, the second nozzle 32 causes the second wire 32 to be adjacent to the position where the first wire 12 is separated by a pitch P from the portion wound twice. The wire 13 is guided. And the 2nd wire 13 guided to the position adjoins the core 11 so that the desired pitch P may be separated from the already wound 1st wire 12 by the core 11 rotating. It will be wound with.

  Further, the interval between the second wire 13 and the third wire 14 positioned at the end of the feeding tool 30 in the traveling direction is an interval L obtained by adding a desired pitch P to a value twice the predetermined amount T. When the first wire 12 is wound four times and the second wire 13 is wound twice, the second wire 13 is adjacent to the portion where the second wire 13 is wound twice with a desired pitch P behind. The third wire 14 is guided to the position by the third nozzle 33. Then, when the core 11 rotates, the third wire 14 is wound around the core 11 adjacent to the already wound second wire 13 at a desired pitch P. Here, the predetermined amount T, which is the amount by which the feeding tool 30 moves while the wires 12 to 14 are wound around the core 11 once, is an amount obtained by multiplying the number of the wires 12 to 14 by a desired pitch P. In the state where the third wire 14 is wound around the core 11 adjacent to the second wire 13, the three wires 12 to 14 wound around the core 11 are accommodated between the predetermined amount T. . For this reason, if the desired pitch P is the outer diameter of the wire rods 12 to 14, there will be no gap between the adjacent wire rods 12 to 14 of the wound portion, and the plurality of wire rods 12 to 14 Can be obtained.

  Thus, even if the natural number which calculates | requires the predetermined | prescribed space | interval L is set to 2 and the several wire rods 12-14 are made to leave | separate the predetermined space | interval L in the feeding tool 30, the several wire rod drawn | fed out from the feeding tool 30 is wound around 11 can be aligned and wound at a desired pitch P. And since the predetermined | prescribed space | interval L can be made between the some wire rods 12-14 in the delivery tool 30, even if the delivery tool 30 consists of several nozzles 31-33, for example, It is possible to bring the feeding end portion of the feeding tool 30 including these nozzles 31 to 33 closer to the core 11 without causing the plurality of nozzles 31 to 33 to overlap each other.

  Here, the number of the wires 12 to 14 is not three as shown in the figure, but increases to four, five, six or more, for example, and the nozzle that is the wire feeder 30 in proportion to the number Even if the number of 31 to 33 increases, if the distance between the central axes in the axial direction of the core 11 of the plurality of wires 12 to 14 is a predetermined distance L, all of the increased nozzles interfere with each other. The plurality of wire rods 12 to 14 can be surely wound in an aligned manner without causing them. Then, by bringing the feeding end portion of the feeding tool 30 close to the core 11, it is possible to prevent the plurality of wire rods 12 to 14 fed from the feeding tool 30 from being separately shifted before reaching the core 11. Then, the plurality of wire rods 12 to 14 fed out side by side with a predetermined interval L from the feeding tool 30 are immediately wound around the core 11 in the state of being arranged without changing the predetermined interval L. Can do.

  In particular, when the wire feeding end of the feeding tool 30 composed of a plurality of nozzles is brought close to and brought into contact with the core 11 during winding, a plurality of wires fed side by side from the feeding tool 30 are provided. 12 to 14 can be immediately wound around the core 11 in the state of being aligned. Further, even if the core 11 is thin and relatively long, and the core 11 is curved due to its length, the wire feeding end of the feeding tool 30 is connected to the core 11. If they are brought into contact with each other, it is possible to avoid a situation in which the winding core 11 is pulled by the wires 12 to 14 and bent toward the feeding tool 30 by the contacting feeding tool 30. For this reason, according to the present invention, even if the core 11 is thin and relatively long, and the core 11 is curved due to its length, such a core. 11, a plurality of wire rods 12 to 14 can be aligned and wound at a desired pitch P with high accuracy.

  In the embodiment described above, FIG. 1 shows a case where the natural number for obtaining the predetermined interval L in the axial direction of the cores 11 of the plurality of wires 12 to 14 is 1, and the natural number for obtaining the predetermined interval L is Although the case of 2 is shown in FIG. 4, the natural number for obtaining the predetermined interval L is not limited to 1 or 2, and the natural number for obtaining the predetermined interval L is 3 or 4 or 5 or more. It may be. Thus, if the natural number which calculates | requires the predetermined | prescribed space | interval L is increased, the predetermined | prescribed space | interval L which shows the space | interval of several wire rods 12-14 can be increased more, and the several wire rods 12-14 will be guided to the core 11. The degree of freedom in designing the feeding tool can be improved.

  Further, in the above-described embodiment, the plurality of wire rods 12 to 14 are moved to the core 11 by moving the feeding tools 20 and 30 in the arrow A direction while winding the plurality of wire rods 12 to 14 around the core 11. Although the case where the wire rods 12 to 14 newly fed out each time they are wound is moved by a predetermined amount T in the axial direction of the core 11 has been described, the core 11 can be moved without moving the feeding tools 20 and 30. The core 11 itself is moved in the axial direction of the core 11 while the plurality of wires 12 to 14 are wound around the core 11, so that each time the plurality of wires 12 to 14 are wound around the core 11 one time. The plurality of wires 12 to 14 may be moved by a predetermined amount T in the axial direction of the core 11.

  In the above-described embodiment, the case where three wires are wound in an aligned manner is exemplified. However, the number of wires is not limited to this, and although not shown, it is a case where two wires are wound in an aligned manner. Alternatively, it may be a case where four, five, six, seven, eight, nine, ten or more wires are aligned and wound.

  Moreover, in embodiment mentioned above, the feeding tool 20 by which the three guide pins 22-24 were provided in the baseplate 21 is shown in FIG. 1, and the feeding tool 30 which consists of the three nozzles 31-33 is shown in FIG. Although shown, the feeding tool is not limited to these structures as long as a plurality of wire rods can be fed between the central axes at predetermined intervals L in the axial direction of the winding core. May be. For example, the base plate may be provided with a pulley for guiding the wire.

  Further, in the above-described embodiment, all the wire rods 12 to 14 having the same outer diameter are used, the desired pitch P is set to the outer diameter of the wire rods 12 to 14, and all the wires after the aligned windings are formed. The case where the wires 12 to 14 are wound without leaving a gap in the axial direction of the core 11 has been described, but wires having different outer diameters may be used, and the desired pitch P is determined by the wires 12 to 14. It may be a value exceeding the outer diameter. When the desired pitch P is set to a value exceeding the outer diameter of the wire rods 12 to 14, a desired gap corresponding to the difference between the desired pitch P and the outer diameter of the wire rods 12 to 14 is set to the adjacent wire rods 12 to 14 after aligned winding. It can be generated between the wires 12-14.

11 Core 12 to 14 Wire T Predetermined amount P Desired pitch L Predetermined interval

Claims (4)

While winding a plurality of wire rods (12 to 14) that are fed out at predetermined intervals (L) between the central axes in the axial direction of the core (11), around the outer periphery of the core (11), Each time the plurality of wires (12 to 14) are wound around the core (11) once, the plurality of wires (12 to 14) that are newly fed are placed in the axial direction of the core (11). In the winding method of winding a plurality of wires (12-14) around the winding core (11) by moving a fixed amount (T),
When a desired pitch (P) between the centers in the axial direction of the winding core (11) of the adjacent wire rods (12 to 14) wound around the winding core (11), the desired pitch ( P) is adjusted by the predetermined amount (T) and the predetermined interval (L).   An amount obtained by multiplying the number of the plurality of wires (12 to 14) by a desired pitch (P) is a predetermined amount (T), and the desired pitch (P) is set to a value that is a natural number multiple of the predetermined amount (T). The multiple winding method according to claim 1, wherein the desired pitch (P) is adjusted with the added interval as a predetermined interval (L).   The multiple winding method according to claim 2, wherein the natural number for obtaining the predetermined interval (L) is 1.   A plurality of wire rods (12-14) are fed out through a feeding tool (20) in which a plurality of guide pins (22-24) are arranged at equal intervals (N) on the base plate (21), and the feeding tool The multi-wire winding method according to any one of claims 1 to 3, wherein the predetermined interval (L) is finely adjusted by tilting (20).

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