JP5757658B2 - Multiple wire winding apparatus and multiple wire winding method - Google Patents

Description

  The present invention relates to a multiple winding device and a multiple winding method for aligning and winding a plurality of wire rods on the outer periphery of a core.

  Conventionally, as a technique for aligning and winding a plurality of wire rods on the outer periphery of the core, a plurality of nozzles and pulleys corresponding to the number of the wire rods are used, and a plurality of wire rods respectively fed from the plurality of nozzles or pulleys are arranged around the axis. 2. Description of the Related Art A winding device that winds around the outer periphery of a rotating core is known (see, for example, Patent Documents 1 and 2). In addition to the means for rotating the winding core, these winding devices include another means for rotating or moving the plurality of nozzles or pulleys, and the plurality of nozzles or pulleys are rotated or moved by the other means. Thus, the gaps between the plurality of wire rods respectively fed from the nozzles or pulleys are eliminated, and the plurality of wire rods are wound around the winding core without any gaps.

JP 2008-198955 A (paragraph numbers [0006] to [0013], FIG. 10) JP 2009-33887 A (paragraph numbers [0009] to [0022], FIG. 5)

  However, since the conventional winding apparatus uses a plurality of nozzles and pulleys according to the number of wires, for example, a relatively large number of wires, such as 10 with two or more wires, are used. In the case of simultaneous winding on the outer periphery of the core, the number of nozzles and pulleys increases in proportion to the number of wires, and the means for rotating or moving them separately also increases, resulting in an apparatus However, there is a problem that the unit price of the device itself is pushed up.

  Also, when the number of wires increases and the number of nozzles and pulleys increases in proportion to the number, the distance from the increased nozzle or pulley core tends to increase in order to avoid interference with each other. There is. As a result, the amount of the wire rod fed from the nozzle or pulley is shifted in the width direction until it reaches the core, and there is a problem that the alignment winding becomes difficult because the distance from the adjacent wire rod changes.

  In particular, when the core is thin and relatively long, and the core is curved due to its length, the wire fed from the nozzle or pulley is applied to the core. The extent to which it reaches the point of expansion also increases, making it even more difficult to align the winding on such a core. And, in such a winding core, the degree of bending is different at the end and the central part, so the variation in the distance to the adjacent wire will be different at the central part and the end, Uniformly winding a plurality of wires over the entire length of the core tends to be extremely difficult.

  An object of the present invention is to provide a multi-wire winding apparatus and a multi-wire capable of relatively easily aligning and winding a relatively large number of wires on the outer periphery of the core even if the core is thin and relatively long. It is to provide a winding method.

  The multi-wire winding apparatus of the present invention includes a winding mechanism for rotating a winding core around an axis and winding a wire fed through a nozzle hole around the outer periphery of the winding core, and winding by the winding mechanism. And a feed mechanism that moves the nozzle or the core in the direction of the core axis in synchronization.

  Its characteristic configuration is a nozzle tilt mechanism that tilts the nozzle in a plane parallel to the axis of the nozzle and the axis of the core, and the tilt angle of this nozzle is sent when winding on the core by the winding mechanism. And a control mechanism for controlling the nozzle tilting mechanism so as to coincide with the tilt angle given to the wire by feeding of the nozzle or the core by the mechanism, and the shape of the nozzle hole is parallel to the axis of the nozzle and the axis of the core A plurality of wire rods arranged in a line in a flat plane and formed into an oval shape or a rectangular shape that can be passed, and at least a tip edge of a nozzle in which the plurality of wire rods are fed out in a tilted state. It is in the place where a part was notched and formed so that a winding core might be met.

  In this multi-wire winding apparatus, it is preferable to provide a guide member that supports the winding core in the vicinity of the nozzle. The guide member has a pair of wall members that sandwich the nozzle, and the winding core is disposed at the edges of the pair of wall materials. It is more preferable to form a groove for receiving and supporting each of the grooves. It is also preferable that a nozzle reversing mechanism for reversing the nozzle by rotating around the axis is provided, and the feed mechanism is configured to reciprocate the nozzle or the core in the direction of the core axis. In addition, when a nozzle movable mechanism for reciprocally moving the nozzle in the axial direction is provided, the nozzle movable mechanism moves the nozzle away from the core to the core and at least a part of the tip edge of the nozzle to the core or the core. It is preferable that the wire is configured so as to be able to contact an already wound wire.

  The multi-wire winding method of the present invention winds the wire drawn through the nozzle hole around the outer periphery of the core and moves the nozzle or the core in the axial direction of the core in synchronization with the winding. In this method, the wire is aligned and wound around the outer periphery of the core.

  The characteristic point is that the shape of the hole of the nozzle is formed so as to form an oval shape or a rectangular shape in which a plurality of wires can pass in a line in a plane parallel to the axis of the nozzle and the axis of the core. In addition, the core is formed by cutting out at least a part of the tip edge of the nozzle from which a plurality of wires are fed, and tilting the nozzle in a plane parallel to the axis of the nozzle and the axis of the core. The nozzle is provided with a tilt angle that coincides with the tilt angle given to the plurality of wires by feeding the nozzle or the core when winding on the nozzle, and at least a part of the notch at the tip edge of the nozzle is along the core. After that, it is in the position to perform the aligned winding.

  In this multiple wire winding method, it is preferable that at least a part of the notch at the tip edge of the nozzle is brought into contact with the winding core or the wire already wound around the winding core during winding, and the nozzle or winding core is connected to the winding core shaft. When reciprocating in the direction and aligning and winding a plurality of wires on the outer periphery of the core over a plurality of layers, it is preferable to reverse the nozzle when the nozzle or the core moves forward and backward.

  In the multiple wire winding device and the multiple wire winding method of the present invention, the length of the nozzle hole is such that a plurality of wire rods can pass in a line in a plane parallel to the axis of the nozzle and the axis of the core. Since it is formed in a circular or rectangular shape, the plurality of wires passing through the nozzle holes are fed out in a state of being aligned from the tip edge of the nozzle. The nozzle tilt mechanism gives the nozzle a tilt angle equal to the tilt angle of the wire rod on the winding core, so that a plurality of wires fed side by side are directly fed out from the nozzle as they are. It can be wound around a core. In addition, since the tip edge of the nozzle in which a plurality of wires are fed out in a tilted state is cut out along the core, the distance between the tip edge of the nozzle from which the plurality of wires are fed out and the core Can be made uniform among a plurality of wire rods, and the wire rod fed from the nozzle is displaced until it reaches the core, creating a gap between the wire rods, or expanding the gap. Can be prevented. Therefore, a relatively large number of wires can be aligned and wound around the outer periphery of the core relatively easily.

  In particular, if at least a part of the notch at the tip edge of the nozzle is brought into close contact with the winding core during this winding, the winding core is thin and relatively long, and the winding core has its length. Therefore, even if it is curved or the like, the situation where the winding core is pulled by the wire and bent to the nozzle side is avoided, and a plurality of wires fed out from the nozzle are arranged in the aligned state. It can be wound immediately on the core.

  In addition, by providing a guide member that supports the core in the vicinity of the nozzle, even if the core is curved, it is possible to reliably prevent the core from being bent and curved during winding. it can. Therefore, in the present invention, even if the core is thin and relatively long, a relatively large number of wires can be aligned and wound on the outer periphery of the core relatively easily.

  Furthermore, in the multiple wire winding apparatus and winding method of the present invention, the nozzle is reversed by the nozzle reversing mechanism even when a plurality of wires are aligned and wound around the outer periphery of the core. Thus, the notch at the tip edge of the nozzle can be easily along the winding core during the winding. Then, by reciprocating the nozzle or the winding core by the feed mechanism, it becomes possible to perform winding for the upper layer coil on the lower layer coil, and easily perform highly accurate aligned winding over a plurality of layers. Can be executed.

It is a perspective view which shows the state of the multiple winding of embodiment of this invention. FIG. 6 is a top view of a nozzle in which a first-layer winding is formed on a winding core supported by the guide member. FIG. 3 is a top view of a nozzle corresponding to FIG. 2 in which a second layer winding is formed on the first layer. FIG. 3 is a top view of a nozzle corresponding to FIG. 2 in which a third layer winding is further formed on the second layer. It is sectional drawing of the nozzle which shows the some wire rod which passed and passed through the hole of the nozzle. It is the A section enlarged top view of Drawing 10 showing the tip and guide member of the nozzle. It is an expansion perspective view which shows the front-end | tip part of the nozzle. It is a top view which shows the state in which the nozzle tilted and the 1st layer | winding is comprised. It is a top view which shows the state in which the nozzle tilted and the winding of the 2nd layer was comprised. It is a top view which shows the state in which the nozzle is orthogonal to a winding core. It is a front view around the nozzle. It is a front view which shows the multiple winding apparatus of this invention embodiment. It is a top view of the multiple wire winding device. It is a side view of the multiple wire winding device.

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

  As shown in FIGS. 12 to 14, the multiple wire winding device 10 of the present invention is configured to align and wind a plurality of wires 11 (FIG. 14) fed from the wire supply mechanism 14 around the outer periphery of the core 13. As the core 13 in the figure, a case is shown in which a cross-section is circular and a relatively thin and long pin shape is used. The core 13 is not limited to a circular cross section, and may have a square cross section. Here, three axes of X, Y, and Z orthogonal to each other are set, the X axis extends in the horizontal front-rear direction, the Y axis extends in the horizontal horizontal direction, the Z axis extends in the vertical direction, and the core 13 is stretched in the Y axis direction. As an example, the multiple wire winding device 10 of the present invention will be described.

  As shown in FIGS. 12 and 13, the multi-wire winding apparatus 10 of the present invention pulls a relatively long pin-shaped winding core 13 in the Y-axis direction, rotates it around the axis, and causes a nozzle 30 to be described later. A winding mechanism 20 is provided for winding the wire 11 (FIG. 14) fed out through the outer periphery of the winding core 13. The winding mechanism 20 in this embodiment includes a fixed chuck device 21 that holds one end of the core 13, and a core 13 that is provided apart from the fixed chuck device 21 in the Y-axis direction and extends in the Y-axis direction. And a movable chuck device 22 that bites the other end. The fixed and movable chuck devices 21 and 22 can be the same, and examples of these chuck devices 21 and 22 include a mechanical chuck such as a drill chuck or a collet chuck. The figure illustrates the case where a drill chuck is used.

  The fixed chuck device 21 is pivotally supported by a fixed bearing 23 provided on the base 10 a, and the movable chuck device 22 is pivotally supported by a movable bearing 24. The movable bearing 24 is attached to the base 10a via a chuck moving mechanism 26. Examples of the chuck moving mechanism 26 include various actuators such as a fluid pressure cylinder. In the figure, a chuck moving mechanism 26 composed of an air pressure cylinder is shown, and a case where the movable bearing 24 is attached to the movable base 26a of the moving mechanism 26 is illustrated. The chuck moving mechanism 26 formed of an air pressure cylinder is configured to be able to move the movable base 26a in the Y-axis direction, which is an extension direction of the core 13, depending on whether compressed air is supplied, and moves the movable bearing 24 together with the movable base 26a. The movable chuck device 22 is moved away from the fixed chuck device 21 to pull the core 13, and the core 13 can be stretched between the fixed chuck device 21 and the movable chuck device 22.

  In addition, the winding mechanism 20 rotates the stretched core 13 to wind a plurality of wires 11 fed from the wire supply mechanism 14 (FIG. 14) through the nozzle 30 around the core 13. A core rotation means is provided. The rotating means in the figure are chuck servomotors 27 and 28 that are driven to rotate in response to a command from a controller (not shown). As shown in FIG. 2, servomotors 27 and 28 are provided on both the fixed bearing 23 and the movable bearing 24, respectively. It is done. Belts 27a and 28a are installed between the rotation shafts of the respective chuck servo motors 27 and 28 and the respective chuck devices 21 and 22, and the respective chuck servo motors 27 and 28 are controlled by commands from a controller which is a control mechanism. When the drive shaft 28 is rotated and the rotation shafts thereof are rotated, the chuck devices 21 and 22 are synchronously rotated in the same direction via the belts 27 a and 28 a, and can be rotated without twisting the winding core 13. .

  The fixed and movable chuck devices 21 and 22 are respectively provided with reels 29 on which a plurality of wires 11 can be wound. The reels 29 have the same structure, and these reels 29 are provided on fixed and movable chuck devices 21 and 22 coaxially with the chuck devices 21 and 22 via U-shaped attachment members 29b. The reels 29 are each formed with a central hole through which the core 13 can be inserted in the central axis. One end of the core 13 inserted through the central hole is connected to the movable chuck device 22 and the other end is fixed to the fixed chuck. Each device 21 is configured to bite. Although not shown, the mounting member 29b is configured such that the ends of the plurality of wire rods 11 fed out through the nozzle 30 can be fixed. On the side wall of the reel 29, a plurality of cutouts 29a are formed to draw out the plurality of wires 11 wound around the reel 29 to the core 13 side. 12 and 13 show the reel 29 in which four notches 29a are formed.

  By attaching such reels 29 to the fixed and movable chuck devices 21 and 22, respectively, when the fixed and movable chuck devices 21 and 22 are rotated by the servo motors 27 and 28 as the core rotating means, these reels 29 It is configured to rotate together with the fixed and movable chuck devices 21 and 22, wind a plurality of wires 11 fed from the nozzle 30, and then draw the plurality of wires 11 from the notch 29 a to the core 13 side. The

  As shown in FIGS. 12 to 14, the winding device 10 of the present invention is a feed mechanism that moves the nozzle 30 or the core 13 in the core axis direction in synchronization with the winding of the wire 11 by the winding mechanism 20. 60. The feed mechanism 60 in this embodiment moves the nozzle 30 and includes a main movement mechanism 61 and a sub movement mechanism 71 provided in the main movement mechanism 61. The base 10a is provided with a vertical wall 10b extending in the Y-axis direction along the winding core 13, and the main moving mechanism 61 is provided on the vertical wall 10b. Specifically, a pair of main rails 62 and 62 are provided over the entire length of the front surface of the vertical wall 10b facing the core 13 with a predetermined space therebetween. Main pivot supports 63, 63 are provided at both ends in the Y-axis direction of the vertical wall 10b, and a main screw shaft 64 is pivotally supported by the main pivot supports 63, 63 between the pair of main rails 62, 62. Is provided. A main movable plate 66 is provided on the pair of main rails 62, 62 so as to be movable in the longitudinal direction of the pair of main rails 62, 62, and a main screw member 67 that is screwed onto the main screw shaft 64. (FIG. 14) is fixed. A main drive motor 68 controlled by a controller (not shown) is attached to one main pivot support 63, and a main screw shaft 64 is connected to a rotation shaft of the main drive motor 68. When the main drive motor 68 is driven and the main screw shaft 64 is rotated, the main screw member 67 screwed to the main screw shaft 64 is movable along the pair of main rails 62 and 62 together with the main movable plate 66 in the longitudinal direction. Is done.

  The sub moving mechanism 71 is provided on the main movable plate 66 in the main moving mechanism 61. Specifically, a pair of sub rails 72, 72 are provided on the entire length of the main movable plate 66 on the front surface of the main movable plate 66 facing the core 13 with a predetermined interval in the vertical direction. Sub pivot supports 73, 73 are provided at both ends in the Y-axis direction of the main movable plate 66, and a sub screw shaft 74 is pivoted between the pair of sub rails 72, 72 at both ends to the sub pivot supports 73, 73. It is provided to be supported. The pair of sub-rails 72, 72 is provided with a sub-movable plate 76 movably in the longitudinal direction of the pair of sub-rails 72, 72, and the sub-movable plate 76 is screwed to the sub-screw shaft 74. (FIG. 14) is fixed. A sub drive motor 78 controlled by a controller (not shown) is attached to one sub pivot support 73, and a sub screw shaft 74 is connected to the rotation shaft of the sub drive motor 78. When the auxiliary screw motor 74 is driven to rotate the auxiliary screw shaft 74, the auxiliary screw member 77 screwed to the auxiliary screw shaft 74 is movable along the auxiliary movable plate 76 along the pair of auxiliary rails 72, 72 in the longitudinal direction. Is done.

  As shown in FIGS. 10, 11, and 14, the nozzle 30 is attached to the sub movable plate 76 in the feed mechanism 60 via a nozzle reversing mechanism 80, a nozzle movable mechanism 85, and a nozzle tilting mechanism 90. The nozzle tilting mechanism 90 tilts the nozzle 30 in a plane parallel to the axis of the nozzle 30 and the axis of the winding core 13, in this embodiment, in the XY plane. The horizontal board | substrate 91 attached horizontally to the front surface which faces the core 13 of this, and the disc 92 attached to the upper surface of the horizontal board | substrate 91 so that rotation was possible centering on a Z axis | shaft. The horizontal substrate 91 is provided with a disk rotation motor 93 that is controlled by a controller (not shown) to rotate the disk 92. By driving the disk rotation motor 93, the disk is rotated as shown in FIG. The disk 92 is configured to be able to stop at a desired position by rotating it forwardly or reversely rotating as shown in FIG. Since the nozzle 30 also rotates together with the rotation of the disk 92, the controller (not shown) that controls the disk rotation motor 93 has a tilt angle of the nozzle 30 when the winding mechanism 20 winds around the core 13. A control mechanism is configured to control the nozzle tilting mechanism 90 so as to coincide with the tilt angle given to the wire 11 by feeding the nozzle 30 or the core 13 by the feeding mechanism 60.

  As shown in FIG. 10 and FIG. 14, the nozzle movable mechanism 85 is an axially extending / contracting actuator that extends in the radial direction of the disk 92, and the actuator that is the nozzle movable mechanism 85 corresponds to the disk 92. A housing 86 extending radially from the center of rotation, a servo motor 87 provided at an end of the housing 86 and controlled by a controller (not shown), and rotated by the servo motor 87 provided inside the housing 86 The ball screw 88 is driven, and a follower 89 (FIG. 14) that is screwed into the ball screw 88 to translate along the housing 86. When the servo motor 87 is driven to rotate the ball screw 88, the follower 89 screwed with the servo motor 87 moves along the housing 86 and moves as shown by the solid line arrow in FIG. The nozzle 30 is moved away as shown in FIG. 13 or moved away from the nozzle 30 as indicated by a broken-line arrow so as to approach the core 13.

  As shown in FIGS. 10, 11, and 14, the nozzle reversing mechanism 80 has an axial direction of an actuator in which a round hole 81 a (FIG. 14) is formed in the center and the central axis of the round hole 81 a is the nozzle movable mechanism 85. Can be rotated around a central axis of the round hole 81a or an axis parallel to the central axis of the round hole 81a on the side facing the winding core 13 of the vertical plate 81. And a donut-shaped rotating member 82 provided on the surface. The upright plate 81 is provided with a reversing motor 83 that is controlled by a controller (not shown) to rotate the rotating member 82. By driving the reversing motor 83, the rotating member 82 is rotated forward to rotate the rotating member 82. Is rotated 360 degrees and reversed, or the rotating member 82 in the reversed state is reversed 360 degrees to return to the original normal rotation state.

  The nozzle 30 is provided on a donut-shaped rotating member 82 in the nozzle reversing mechanism 80 so as to extend from the rotating member 82 to the core 13 and have a central axis coaxial with the central axis of the rotating member 82. And the winding mechanism 20 mentioned above is the front-end edge of this nozzle 30, Comprising: The pin-shaped core 13 is located in the position which faces the hole 30a (FIG. 11) from which the several wire 11 is drawn | fed out. The height of the winding core 13 in the Z-axis direction is adjusted.

  As shown in FIGS. 7, 10, and 11, the nozzle 30 in this embodiment straddles a ring-shaped base plate 31 that overlaps with a donut-shaped rotating member 82 and a central hole 31 a of the base plate 31. A pair of leg portions 32, 32 erected on both sides, and a nozzle body 33 provided to connect the protruding ends of the pair of leg portions 32, 32 are provided. As shown in FIG. 7, the nozzle body 33 in this embodiment includes a base portion 33a whose base ends connect the protruding ends of the pair of leg portions 32, 32, and both sides of the protruding ends of the base portion 33a. It has a pair of width members 33b and 33c which determine the width | variety in the Y-axis direction of the hole 30a which delivers the several wire 11, and the cover member 33d which overlaps with the base part 33a. On the side facing the base portion 33a of the lid member 33d, a groove 33h (FIG. 6) slightly deeper than the outer diameter of the wire 11 extends in the longitudinal direction and is formed in the entire length thereof. By superimposing on 33a, this groove | channel 33h is covered with the base part 33a, and the hole 30a which lets out the some wire 11 is formed.

  Specifically, the base portion 33a constituting the nozzle body 33, the pair of width members 33b and 33c, and the rectangular hole 30a surrounded by the lid member 33d are holes of the nozzle 30 through which the plurality of wires 11 are fed. 30a is formed, and the shape of the hole 30a is a rectangular shape in which a plurality of wires 11 are arranged in a line in the Y-axis direction in a plane parallel to the axis of the nozzle 30 and the axis of the winding core 13. (FIG. 1). Here, the plurality of wires 11 means that the number of wires 11 is two or more, and includes, for example, a case where the number of wires 11 is relatively large, such as ten as shown in FIG. And the depth of the groove | channel 33h formed in the cover member 33d is comprised so that the thickness in the Z-axis direction of the hole 30a which pays out the several wire 11 may be determined.

  As shown in FIG. 5, the pair of width members 33b and 33c are formed such that the surfaces facing each other at the outlet of the hole 30a are parallel to each other. And while making the width | variety in the Y-axis direction of the hole 30a determined by this pair of width members 33b and 33c constant, the range where a width | variety is constant is formed in X-axis direction, and space | interval is separated in this hole 30a A plurality of wire rods 11 inserted with a gap between them are arranged so as to be aligned with each other in the width direction at the exit between the pair of width members 33b and 33c of the hole 30a.

  As shown in FIG. 7, the plurality of wires 11 wound around the core 13 are inserted through the round holes 81 a (FIG. 10) of the upright plate 81 and the inside of the rotating member 82, and the pair of legs 32, 32. The plurality of wires 11 passing through the hole 30a formed in the nozzle main body 33 and guided through the hole 13a and passing through the hole 30a are fed out in a state of being aligned from the tip edge of the nozzle 30. Configured to be. Here, the reference numeral 33e shown in the drawing indicates a screw member 33e for attaching the lid member 33d to the base portion 33a, and the reference numerals 33f and 33g indicate a pair of width members 33b and 33c as a predetermined of the base portion 33a. Positioning pins 33f and 33g for accurately positioning at the positions are shown.

  Further, as shown in detail in FIG. 6, the tip of the nozzle 30 facing the core 13, that is, the tip of the nozzle body 33 is in a state where its central axis is perpendicular to the core 13 and parallel to the X axis (FIG. 10). In this state, oblique notches 30b, 30c, and 30d that are inclined with respect to the core 13 are formed. In this embodiment, a case where the winding is formed in three layers on the winding core 13 is shown, and three kinds of cutouts 30b having different angles with respect to the central axis of the nozzle 30 are provided at the tip edge of the nozzle 30. The case where 30c and 30d are formed is shown. The first notch 30b has an inclination angle α that coincides with the inclination angle α (FIG. 2) given to the plurality of wire rods 11 by feeding the nozzle 30 when the first layer is wound around the core 13 of the wire rod 11. When given to the nozzle 30, it is formed so as to be parallel to the core 13. The second notch 30 c gives the nozzle 30 a tilt angle β that coincides with the tilt angle β (FIG. 3) given to the plurality of wires 11 by feeding the nozzle 30 when the second layer of the wire 11 is wound. In some cases, it is formed so as to be parallel to the core 13. The third notch 30d gives the nozzle 30 a tilt angle γ that coincides with the tilt angle γ (FIG. 4) given to the plurality of wire rods 11 by feeding the nozzle 30 when the third layer of the wire rod 11 is wound. In some cases, it is formed so as to be parallel to the core 13.

  As shown in FIG. 2 to FIG. 4, when the winding is formed across a plurality of layers, the upper layer winding has a larger diameter around which the wire 11 is wound compared to the lower layer winding, Since the amount fed out during one winding increases, the inclination angle given to the plurality of wires 11 by the feeding of the nozzle 30 gradually decreases. For this reason, the inclination of the second notch 30c parallel to the core 13 at the time of winding of the second layer from the first notch 30b parallel to the core 13 at the time of winding of the first layer which is the lower layer winding. The angle is smaller (α> β) and the third notch 30d is further smaller (β> γ). Then, as shown in detail in FIG. 6, the first notch 30b and the third notch 30d are formed on both sides of the tip edge of the nozzle 30, and the second notch 30c is formed between them, and the second notch It is comprised so that the hole 30a may open to the notch 30c. Thereby, the front end edge of the nozzle 30 forms a mountain shape as a whole and is formed so as to bulge toward the core 13 side. Then, when the nozzle 30 is wound in a tilted state caused by driving the disk rotating motor 93 by the nozzle tilting mechanism 90 and rotating the disk 92 forward or backward, as shown in FIGS. In addition, at least a part of the notches 30 b, 30 c, 30 d formed at the tip edge of the nozzle 30 is configured to follow the core 13.

  As shown in FIGS. 10, 11, and 14, a guide member 34 that supports the core 13 is provided in the vicinity of the nozzle 30 in the disc 92 that tilts the nozzle 30. The guide member 34 in this embodiment is formed with a pair of wall members 34 a and 34 b that sandwich the nozzle 30. The guide member 34 is attached to a circular plate 92 via an elevating device 35. As shown in FIG. 11, the elevating device 35 is a rectangular shape provided on the circular plate 92 so as to be orthogonal to the nozzle 30 in a top view. A frame 36 is provided. The frame 36 is provided with a servo motor 37 having a rotation shaft extending upward in the Z-axis direction at the center. A pair of moving shafts 38 and 38 extending in the Z-axis direction are axially provided on both sides of the servo motor 37. Is slidably supported by the slide. Both ends of the guide member 34 are supported by the upper ends of the pair of moving shafts 38, and a screw shaft (not shown) is fixed to the rotation shaft of the servo motor 37. A female screw shaft 39 that is screwed with the screw shaft is attached to the guide member 34, and when the screw shaft is rotationally driven by a servo motor 37 that is controlled by a control means (for example, a computer) (not shown), the guide member together with the female screw shaft 39 is guided. 34 is configured to move up and down in the Z-axis direction with respect to the disc 92.

  As shown in FIG. 11, the guide member 34 is configured so that the pair of wall members 34 a and 34 b sandwich the nozzle main body 33 from both sides in a raised state indicated by a one-dot chain line. As shown in FIG. 1 and FIG. 6, recessed grooves 34 c, 34 d, and 34 e that receive and support the core 13 in the raised state are formed at the edges of the pair of wall members 34 a and 34 b, respectively. In this embodiment in which the wire 11 is wound around the winding core 13 over three layers, the three types of concave grooves 34c and 34d that accommodate the winding core 13 in a state where the nozzle 30 is tilted during winding of each layer. , 34e are formed. These concave grooves 34c, 34d, and 34e have a V-shaped cross section, and the first concave groove 34c therein is a nozzle when winding the wire 11 for winding a first layer around the winding core 13. When the nozzle 30 is given a tilt angle α that coincides with the tilt angle α (FIG. 2) given to the plurality of wires 11 by the feeding of 30, the core 13 is accommodated and supported. . The second concave groove 34d gives the nozzle 30 a tilt angle β that coincides with the tilt angle β (FIG. 3) given to the plurality of wire rods 11 by feeding the nozzle 30 when the second layer of the wire rod 11 is wound. In some cases, the core 13 is formed so as to be accommodated and supported. The third concave groove 34e provides the nozzle 30 with an inclination angle γ that coincides with the inclination angle γ (FIG. 4) given to the plurality of wires by the feeding of the nozzle 30 when the third layer of the wire 11 is wound. Further, it is formed so as to accommodate and support the winding core 13.

  On the other hand, as shown by the solid line in FIG. 11, when the guide member 34 is lowered as shown by the solid arrow, the pair of wall members 34a and 34b in the guide member 34 are positioned below the nozzle body 33, and the pair of walls The nozzle main body 33 does not interfere with the materials 34a and 34b, and the nozzle reversing mechanism 80 is configured to enable normal rotation as indicated by the solid line arrow of the nozzle 30 or reversal as indicated by the broken line arrow.

  As shown in FIG. 14, the wire rod supply mechanism 14 that feeds a plurality of wire rods 11 includes a plurality of drums 12 in which a plurality of wire rods 11 are separately wound and stored, and a wire rod 11 fed out from these drums 12. And a plurality of tension devices 40 for separately applying a predetermined tension. A plurality of tension devices 40 are provided so as to overlap in the Y-axis direction, and FIG. 14 specifically shows two tension devices 40 among them. These tension devices 40 have the same structure, and one of them will be described as a representative. The tension device 40 includes a casing 42 provided via a support column 41 and a Y axis direction of the casing 42. The feed control pulley 43, the guide pulley 44, and the tension bar 45 provided on the side surface. The drum 12 around which the wire 11 is wound is installed in a casing 42 in the vicinity of the feeding control pulley 43. The wire 11 fed from the drum 12 is guided to a feed control pulley 43, wound around the feed control pulley 43, and then the direction is changed by the guide pulley 44, so that the wire guide 45a at the tip of the tension bar 45 is changed. Led to. The wire 11 guided to the linear material guide 45a is supplied to the nozzle 30 from the linear material guide 45a.

  The feed control pulley 43 is directly connected to a feed control motor 46 housed in the casing 42. The tension bar 45 can be rotated about a rotation shaft 45b at the base end. The rotation angle of the rotation shaft 45b is detected by a potentiometer 47 serving as a rotation angle detection means housed in the casing 42 and attached to the rotation shaft 45b. The detection output of the potentiometer 47 is input to a controller (not shown), and the control output from the controller is connected to the feeding control motor 46.

  A spring 48, which is an elastic member serving as a biasing means for applying a biasing force in the rotation direction of the tension bar 45, is attached to a predetermined position between the rotation shaft 45b of the tension bar 45 and the linear material guide 45a. It is done. The spring 48 applies an elastic force corresponding to the rotation angle to the tension bar 45. A controller (not shown) is configured to control the feeding control motor 46 so that the rotation angle detected by the potentiometer 47 serving as the rotation angle detection means becomes a predetermined angle. Accordingly, in this tension device 40, tension is applied to the plurality of wires 11 via the tension bar 45 by the spring 48, and the feed control pulley 43 rotates so that the tension bar 45 becomes a predetermined angle, and the desired tension is applied. It is comprised so that supply of the wire 11 to which tension | tensile_strength was provided is possible.

  On the other hand, the multi-wire winding apparatus 10 synchronizes with the feed mechanism 60 that moves the nozzle 30 in the core axis direction, and a transport mechanism 51 that moves the tension devices 40 together with the nozzle 30 in the core axis direction. Is provided. The transport mechanism 51 in this embodiment includes a pair of transport rails 52 and 52 provided on the base 10 a along the main moving mechanism 61. A conveying screw shaft 54 is provided between the pair of conveying rails 52 and 52 so as to be rotatable about the central axis. A pair of transport rails 52, 52 is provided with a follower base 56 movably in the longitudinal direction of the pair of transport rails 52, 52, and a transport screw member 57 that is screwed to the transport screw shaft 54 is fixed to the follower base 56. Is done. The support column 41 provided with a plurality of tension devices 40 is erected on a follower base 56, and the conveying screw shaft 54 is configured to be rotatable by a servo motor (not shown). Then, when the motor is driven to rotate the conveyance screw shaft 54, the conveyance screw member 57 that is screwed together moves in the longitudinal direction along the pair of conveyance rails 52, 52 together with the driven base 56, and the nozzle by the feed mechanism 60. The plurality of tension devices 40 are configured to be movable in the core axis direction together with the nozzles 30 in synchronization with the movement of 30 in the core axis direction.

  Next, the multiple wire winding method of the present invention using such a winding device will be described.

  In the multiple wire winding method of the present invention, the winding core 13 is rotated to pass around a plurality of wires 11 fed through the hole 30a of the nozzle 30 and wound around the outer circumference of the winding core 13, and in synchronization with this winding. In this winding method, the nozzle 30 or the winding core 13 is moved in the axial direction of the winding core 13 and the wire is aligned and wound around the outer periphery of the winding core 13. The shape of the hole 30a of the nozzle 30 as the premise is an oval shape or a rectangular shape in which a plurality of wire rods 11 can be arranged and passed in a plane in a plane parallel to the axis of the nozzle 30 and the axis of the core 13. Is formed. At the same time, at least a part of the tip edge of the nozzle 30 from which the plurality of wires 11 are fed is cut out.

  In the multiple winding method of the present invention, the nozzle 30 is tilted in a plane parallel to the axis of the nozzle 30 and the axis of the winding core 13 in the actual winding, whereby the winding to the winding core 13 is performed. At the time of winding, the nozzle 30 or the winding core 13 feeds the nozzle 30 with a tilt angle that matches the tilt angle given to the plurality of wires 11, and at least a part of the notches 30b to 30d at the tip edge of the nozzle 30 Is aligned with the core 13 and then aligned winding is performed.

  As a specific procedure, in this embodiment, since a relatively thin and long pin-shaped core 13 is used, the core 13 is stretched during actual winding. For this purpose, first, one end of the core 13 is held by the fixed chuck device 21, and then the other end of the core 13 is held by the movable chuck device 22. When the other end of the winding core 13 is held by the movable chuck device 22, the movable base 26 a of the chuck moving mechanism 26 is brought close to the fixed chuck device 21 side. Then, after the other end of the winding core 13 is held by the movable chuck device 22, the movable base 26 a of the chuck moving mechanism 26 is moved together with the movable bearing 24 as shown by the broken line arrow in FIG. The core 13 is pulled by moving the pivoted movable chuck device 22 away from the fixed chuck device 21, and the core 13 is stretched between the fixed chuck device 21 and the movable chuck device 22.

  Next, the tips of the plurality of wire rods 11 fed from the nozzle 30 are attached to the attachment member 29b of the reel 29 in the movable chuck device 22, and the nozzle 30 is wound around the core by the nozzle movable mechanism 85 as shown by the solid line arrow in FIG. The nozzle 30 is moved by the feed mechanism 60 in a state of being away from 13, and the feeding ends of the plurality of wires 11 are opposed to a reel 29 provided coaxially with the movable chuck device 22. As shown in FIG. 12, in this state, the reel 29 is rotated together with the movable chuck device 22 by the core rotating means, whereby the plurality of wires 11 fed from the nozzle 30 are wound around the reel 29. Thereafter, the nozzle 30 is moved by the feed mechanism 60, and the plurality of wires 11 fed from the nozzle 30 are pulled out from the notches 29 a formed on the side walls of the reel 29 to the core 13 side. The movement of the nozzle 30 that occurs when the nozzle 30 is opposed to the reel 29 and when the plurality of wires 11 are pulled out from the notch 29 a to the core 13 side is performed mainly by the sub moving mechanism 71 of the feeding mechanism 60. Specifically, the auxiliary drive motor 78 of the auxiliary moving mechanism 71 is driven to rotate the auxiliary screw shaft 74, and the auxiliary movable plate 76 is moved together with the nozzle 30 in the Y-axis direction. Thereafter, as shown in FIG. 1, the wound core 13 is rotated forward and a plurality of wires 11 fed from the nozzle 30 are wound around the outer periphery of the core 13. The wire 11 is aligned and wound around the outer periphery of the core 13 by moving in the axial direction of the core 13.

  In this embodiment, first, the feeding ends of the plurality of wires 11 of the nozzle 30 are opposed to one end of the core 13. At the same time, the nozzle 30 is tilted in a plane parallel to the axis of the nozzle 30 and the axis of the winding core 13, and the nozzle 30 has a tilt angle that matches the tilt angle given to the plurality of wires by the feed of the nozzle 30. give. The nozzle 30 is tilted by the nozzle tilting mechanism 90, and as shown in FIG. 8, the disk rotating motor 93 is driven to rotate the disk 92 forward or backward, and FIG. As shown in FIG. 2, the circular plate 92 is stopped in a state where the inclination angle α given to the plurality of wires 11 by the feeding of the nozzle 30 and the nozzle 30 coincide with each other.

  At the time of winding the wire 11 around the winding core 13, at least a part of the notches 30 b to 30 d at the tip edge of the nozzle 30 is made to run along the winding core 13. In this embodiment, since windings of three layers are applied to the core 13, notches 30 b to 30 d that are equal to the inclination angle of the nozzle 30 at the time of winding of each layer are formed at the tip edge of the nozzle 30. Therefore, at the time of this first winding, the first notch 30b is placed along the winding core 13. This is performed by the nozzle moving mechanism 85, and after the nozzle 30 is tilted, the tip edge of the nozzle 30 that has been moved away is brought closer to the core 13 as indicated by the dashed arrow in FIG. 14. That is, the ball screw 88 is rotationally driven by the servo motor 87 of the nozzle moving mechanism 85, and the nozzle 30 is moved in the axial direction together with the follower 89 that is screwed into the ball screw 88 to move. The tip edge of is brought close to the core 13. As shown in FIGS. 1 and 2, at the time of winding in this case, at least part of the notches 30b to 30d parallel to the core 13 at the tip edge of the nozzle 30, that is, the winding of the first layer. Then, the first notch 30b among them is brought into contact with the core 13.

  In this winding, the guide member 34 is lifted by the lifting device 35, and the nozzle body 33 is sandwiched from both sides by the pair of wall members 34a, 34b of the guide member 34 in the lifted state. And the core 13 is accommodated and supported by the recessed groove 34c formed in the edge of the pair of wall materials 34a and 34b. In this embodiment in which the wire rod is wound around the winding core 13 in three layers, the winding core 13 is accommodated and supported when the wire rod 11 for winding the first layer on the winding core 13 is wound. Since the concave groove 34c is formed, by raising the guide member 34, the core 13 is caused to enter and support the first concave groove 34c as shown in FIG.

  In this state, aligned winding is performed. In this aligned winding, the winding mechanism 20 rotates the fixed chuck device 21 and the movable chuck device 22 in synchronization with each other, and rotates the core 13 held between them and stretched between them. . Along with the rotation of the core 13, the nozzle 30 is moved in the Y-axis direction from the movable chuck device 22 side toward the fixed chuck device 21 side by the feed mechanism 60 at a speed corresponding to a pitch proportional to the rotation. That is, while the winding core 13 is rotated once, a feed corresponding to the entire width P (FIG. 1) of the plurality of wires arranged in a line in the axial direction of the winding core 13 is given to the nozzle 30. Thus, the plurality of wires 11 fed out from the nozzle 30 are spirally wound around the core 13, and the plurality of wires 11 arranged in a row are adjacent to the wire 11 already wound around the core 13. A so-called aligned winding is performed, and the movement of the nozzle 30 in the Y-axis direction is performed mainly by the main moving mechanism 61 of the feed mechanism 60. Specifically, by driving the main drive motor 68 of the main moving mechanism 61 to rotate the main screw shaft 64, the main movable plate 76 is moved in the Y-axis direction together with the sub moving mechanism 71 provided with the nozzle 30. Done.

  With this aligned winding, a predetermined tension is applied to the plurality of wire rods 11 by the tension device 40, and the plurality of wire rods 11 penetrating through the holes 30 a of the nozzle 30 are fed out in a state of being aligned from the tip edge of the nozzle 30. Will be. As shown in FIGS. 1 and 2, since the nozzle 30 is previously given a tilt angle α equal to the tilt angle α of the wire 11 on the winding core 13, a plurality of wire rods fed out side by side are provided. 11 can be wound around the core 13 as it is, while being fed straight out from the nozzle 30. In addition, since the tip edge of the nozzle 30 from which the plurality of wires 11 are fed out in a tilted state is cut out and aligned along the core 13, the tip edge of the nozzle 30 from which the plurality of wires 11 are fed out The distance between the wire core 11 and the wire core 11 can be made uniform between the plurality of wire rods 11, and the wire wires 11 fed from the nozzle 30 are prevented from being separately shifted before reaching the wire core 13. be able to. Therefore, by supplying the nozzle 30 with a feed corresponding to the overall width P (FIG. 1) of the plurality of wires arranged in a row while the winding core 13 is rotated once, the plurality of wires arranged in the row is arranged. It is avoided that the wire 11 located at the outermost part overlaps the wire 11 already wound around the core 13. This enables so-called aligned winding in which the wire 11 is wound on the winding core 13 without overlapping in the radial direction and without leaving a gap in the axial direction.

  In particular, as shown in FIG. 1 and FIG. 2, at least a part of the notch at the tip edge of the nozzle 30 is brought into contact with the core 13 at the time of winding, so that a plurality of lines fed out from the nozzle 30 are arranged. The wire 11 can be immediately wound around the core 13 in the state where the wires 11 are arranged. Further, even if the core 13 is thin and relatively long and the core 13 is curved due to its length, the tip edge of the nozzle 30 is brought into contact with the core 13. Accordingly, it is possible to avoid a situation in which the winding core 13 is pulled by the wire 11 and curved toward the nozzle 30 side. Accordingly, the plurality of wires 11 are not distorted or twisted, and the side portions of the wires 11 adjacent on the outer periphery of the core 13 overlap each other or come into contact with each other and scrape each other. This can be prevented, and highly accurate aligned winding can be easily performed.

  Here, in this embodiment, the case where the core 13 is thin and relatively long and the core 13 is curved due to its length is described. In the present invention, since the guide member 34 that supports the core 13 is provided in the vicinity of the nozzle 30, it is possible to prevent a situation in which the core 13 is bent and curved during the winding. In particular, the guide member 34 has a pair of wall members 34 a and 34 b that sandwich the nozzle 30. Therefore, the guide member 34 has a portion of the core 13 around which the plurality of wires 11 fed out from the nozzle 30 are wound. Since both ends are received and supported by the recessed grooves 34c formed at the edges of the wall members 34a and 34b, it is possible to reliably prevent the portion of the core 13 around which the wire 11 is wound from being bent. Therefore, in the present invention, even if the core 13 is thin and relatively long, a relatively large number of wires 11 can be relatively easily aligned and wound around the outer periphery of the core 13.

  Then, the rotation of the winding core 13 and the movement of the nozzle 30 are stopped at the stage where the aligned winding is formed over the entire length of the winding core 13 or a desired range. Next, the nozzle 30 is moved away from the winding core 13 by the nozzle moving mechanism 85 and the nozzle 30 is moved in the Y-axis direction by the feed mechanism 60, and the leading ends that are the feeding ends of the plurality of wires 11 are coaxial with the fixed chuck device 21. It is made to oppose to the reel 29 provided in. At that time, the plurality of wires 11 fed from the nozzle 30 are drawn into the outer periphery of the reel 29 from the notches 29 a formed on the side walls of the reel 29. In this state, the reel 29 is rotated together with the fixed chuck device 21 by the winding mechanism 20, whereby the plurality of wires 11 fed from the nozzle 30 are wound around the reel 29 to be terminated. The movement of the nozzle 30 in the Y-axis direction that occurs when the plurality of wires fed from the nozzle 30 are drawn into the outer periphery of the reel 29 is performed mainly by the sub-moving mechanism 71 of the feeding mechanism 60, thereby End the line.

  In this embodiment, since the winding is formed over three layers, the second layer winding is started next. In the second layer winding, after the first layer aligned winding is finished and its end is wound around the reel 29, the nozzle 30 is moved by the feed mechanism 60, and the plurality of wires 11 are again pulled out of the reel 29. Again face the core 13. The movement of the nozzle 30 that occurs when the plurality of wires 11 are pulled out is performed mainly by the sub moving mechanism 71 of the feeding mechanism 60. In the second layer winding, as indicated by the one-dot chain line arrow in FIG. 3, the moving direction of the nozzle 30 is opposite to that in the first layer winding. The nozzle 30 is inverted. The reversal of the nozzle 30 is performed by a nozzle movable mechanism 85 (FIG. 14) and a nozzle reversal mechanism 80 (FIG. 11). The nozzle movable mechanism 85 rotates and drives a ball screw 88 by a servo motor 87. The child 89 is moved away from the core 13 together with the nozzle. Then, as shown by the solid line in FIG. 11, the guide member 34 is lowered by the elevating device 35, and the pair of wall members 34 a and 34 b in the guide member 34 are positioned below the nozzle body 33. In this state, the nozzle reversing mechanism 80 causes the rotating member 82 to rotate forward as indicated by solid line arrows in FIGS.

  After reversing the nozzle 30 or simultaneously with it, the nozzle 30 is tilted in a plane parallel to the axis of the nozzle 30 and the axis of the core 13 as shown in FIG. A tilt angle β corresponding to the given tilt angle β (FIG. 3) is given to the nozzle 30. The nozzle 30 is tilted by the nozzle tilting mechanism 90 as described above. Further, the feeding ends of the plurality of wires 11 of the nozzle 30 are opposed to one end of the core 13, and at least a part of the notches 30 b to 30 d at the tip edge of the nozzle 30 is aligned with the core 13. This is performed by bringing the tip edge of the nozzle 30 that has been moved away by the nozzle moving mechanism 85 in FIG. 14 closer to the winding core 13 as indicated by the broken line arrow, and the second layer of the second layer is wound during this second layer winding. The notch 30c is extended along the core 13 (FIG. 3). Thus, by reversing the nozzle 30, the tip edge of the tilted nozzle 30 can be easily along the core 13 even when the upper layer is wound. At this time, as shown in FIG. 3, it is preferable that the second notch 30 c in the winding of the second layer is brought into contact with the first-layer wire 11 already wound around the winding core 13.

  In this second layer winding, the guide member 34 is raised again by the lifting device 35, and the nozzle body 33 is sandwiched from both sides by the pair of wall members 34a, 34b of the raised guide member 34. The core 13 on which the first layer winding is formed is accommodated and supported by the second concave groove 34d formed at the edge of the pair of wall members 34a, 34b. From this state, the core 13 is rotated, and at the same time, the feed mechanism 60 moves the nozzle 30 in the Y-axis direction from the fixed chuck device 21 side toward the movable chuck device 22 side at a speed corresponding to a pitch proportional to the rotation. Let As shown in FIG. 3, the plurality of wires 11 are thereby fed out through the nozzle 30 and further wound on the first layer of wire already wound around the winding core 13, so that the second layer of aligned winding is wound. Is made.

    Then, the rotation of the core 13 and the movement of the nozzle 30 are again stopped at the stage where the second layer of aligned winding is formed within the entire length or a desired range of the core 13. Then, the tip of the nozzle 30 is made to face the reel 29 attached to the movable chuck device 22 by the same procedure as that for the first aligned winding, and a plurality of wire rods 11 fed from the nozzle 30 are cut. The reel 29 is pulled from the notch 29a. By rotating the reel 29 in this state, the plurality of wire rods 11 fed from the nozzle 30 are wound around the reel 29 to be terminated, and the second layer winding is terminated.

  Thereafter, although the third layer winding is started, the nozzle 30 is reversed again by the nozzle movable mechanism 85 and the nozzle reversing mechanism 80 even in the third layer winding. Thereafter or simultaneously, the nozzle 30 is tilted in a plane parallel to the axis of the nozzle 30 and the axis of the winding core 13, and the tilt angle coincides with the tilt angle given to a plurality of wires by the nozzle 30 feeding. 30 and a third notch 30 d is provided along the core 13. As shown in FIG. 4, the third notch 30 c is brought into contact with the second layer of wire 11 already wound around the core 13 during the third layer winding. Further, in the third layer winding, the first and second layer windings are formed by the third concave grooves 34e formed at the edges of the pair of wall members 34a and 34b of the guide member 34. The formed core 13 is accommodated and supported.

  From this state, the core 13 is rotated, and at the same time, the feed mechanism 60 moves the nozzle 30 in the Y-axis direction from the fixed chuck device 21 side toward the movable chuck device 22 side at a speed corresponding to a pitch proportional to the rotation. Let As a result, the plurality of wires 11 are fed out through the nozzle 30 and further wound on the second layer of wire 11 already wound around the core 13 to form the third layer of aligned winding. Then, the rotation of the core 13 and the movement of the nozzle 30 are stopped at the stage where the third layer of aligned winding is formed over the entire length or a desired range of the core 13. A plurality of wire rods 11 fed out from the nozzles 30 are then rotated by rotating the reels 29 with the tip of the nozzles 30 facing the reels 29 in the same procedure as when the first layer winding is made. The reel 29 is wound to be the end, and the third layer winding is finished.

  After the desired winding is formed, the aligned winding coil is removed from the core 13. This removal is performed in a state where the tension of the winding core 13 is released. Specifically, as shown by a one-dot chain line arrow in FIG. 12, the movable base 26 a of the chuck moving mechanism 26 is moved together with the movable bearing 24, and the movable chuck device 22 pivotally supported by the movable bearing 24 is brought closer to the fixed chuck device 21. . In this state, the holding of the other end of the core 13 by the movable chuck device 22 is released. Similarly, the holding of the one end of the core 13 by the fixed chuck device 21 is released, the coil 13 aligned with the core 13 is removed from the winding mechanism 20, and the coil is aligned and wound around the core 13. The core 13 is extracted from a coil made of a plurality of wires. As a result, a coil is obtained in which a plurality of wires 11 are aligned and wound at a uniform pitch over three layers.

  As described above, in the multi-wire winding apparatus and the winding method thereof according to the present invention, the nozzle 30 is reciprocated by the feed mechanism 60, and the plurality of wires 11 are aligned and wound on the outer periphery of the core 13 over a plurality of layers. Even when the nozzle 30 is reversed by the nozzle reversing mechanism 80, the notches 30b to 30d at the tip edge of the nozzle 30 are removed both during the forward movement and during the backward winding. It can be along the core 13. In this state, when the feed mechanism 60 actually moves the nozzle 30 back and forth, the winding for the upper coil can be performed on the lower coil. When at least a part of the tip edge of the nozzle 30 is brought into contact with the core 13 or the wire 11 already wound around the core 13, the core 13 is pulled by the wire 11 and curved toward the nozzle 30 side. Such a situation can be avoided, and highly accurate aligned winding over a plurality of layers can be easily performed.

  In the above-described embodiment, the case where both ends of the core 13 are supported and pulled by the fixed and movable chuck devices 21 and 22 has been described. However, if the core is not likely to bend or buckle, It is not necessary to stretch the winding core 13. In this case, the winding core 13 may support only one of them.

  In the above-described embodiment, the case where the winding core 13 is extracted from the coil composed of a plurality of wires wound around the winding core 13 after winding has been described. However, the winding core forms a product together with the coil. If it is such, it is not necessary to extract this core 13 from the coil. In this case, the core 13 forms part of the product together with the coil.

  In the above-described embodiment, the pin-shaped winding core 13 stretched by the fixed and movable chuck devices 21 and 22 has been described. However, when the winding core 13 is made thinner, a wire or A piano wire or stainless steel wire may be used as the winding core. In particular, by providing the guide member 34, it is possible to effectively prevent the winding core 13 from being bent. For example, when obtaining a relatively thin coil having an inner diameter of 0.4 mm, the winding core 13 is used as the winding core 13. For example, such a thin coil can be obtained by using a thin piano wire having a thickness of 0.38 mm.

  In the above-described embodiment, the feeding mechanism feeding mechanism 60 that moves the nozzle 30 in the axial direction of the core 13 in synchronization with the winding by the winding mechanism 20 has been described. It is also possible to move the core 13 in the axial direction of the core 13 in synchronization with the winding by.

  In the embodiment described above, the case where the wire 11 is wound around the core 13 in three layers has been described. However, the present invention is not limited to this. You may make it obtain the coil which consists of a coil which consists of a layer, or was wound over four layers or more.

  In the embodiment described above, the case where the wire 11 is once wound around the reel 29 at the end of winding of each layer has been described. However, the upper layer is not drawn into the outer periphery of the reel 29 at the end of winding of each layer. Alignment winding may be started. Even in this case, when the wire 11 is wound on the upper layer, the nozzle 30 or the winding core 13 feeds the nozzle 30 with a tilt angle that coincides with the tilt angle given to the plurality of wires 11, and the nozzle 30. High-precision aligned winding over a plurality of layers can be easily performed by aligning winding after arranging at least a part of the notch of the leading edge of the core along the core 13.

  In the above-described embodiment, the case where the coil wound along the core 13 along with the core 13 is removed from the winding mechanism 20 is described. However, if the core 13 is a linear material that can be bent, for example. In the state where the biting at one end of the core 13 is released, the coil made of the wire 11 wound around the core 13 is moved from the end to the other end side, You may make it remove.

  In the above-described embodiment, the case where three concave grooves having a V-shaped cross section are formed in the guide member 34 has been described. However, as long as the concave groove can accommodate and support the core 13, The cross section is not V-shaped but may be other shapes such as a square shape or a semicircular shape, and the number of the cross-sections is not limited to three. When obtaining, it is preferable to increase / decrease the number of the concave grooves which can support the core 13 in proportion to the number of layers.

  In the above-described embodiment, the hole 30a of the nozzle 30 that feeds out the plurality of wires 11 has a rectangular shape surrounded by the base portion 33a, the pair of width members 33b and 33c, and the lid member 33d. However, the hole 30a of the nozzle 30 is not rectangular as long as the plurality of wires 11 can be fed out, and the shape thereof may be a long hole.

  Further, in the above-described embodiment, the movement of the nozzle 30 that occurs when the wire 11 is pulled into the reel 29 and when the wire 11 is pulled out toward the core 13 is performed mainly by the sub-movement mechanism 71 of the feed mechanism 60. Although the case has been described, these operations may be performed by the main movement mechanism 61 of the feed mechanism 60. If all the movement of the nozzle 30 can be performed by the main movement mechanism 61, this sub movement is performed. The mechanism 71 may not be provided.

DESCRIPTION OF SYMBOLS 10 Multiple wire winding apparatus 11 Wire material 13 Core 20 Winding mechanism 30 Nozzle 30a Hole 30b-30d Notch 34 Guide member 34a, 34b Wall material 34c-34e Groove 60 Feed mechanism 80 Nozzle reversing mechanism 90 Nozzle tilt mechanism

Claims (7)

A winding mechanism (20) for rotating the winding core (13) around the axis and winding the wire (11) fed through the hole (30a) of the nozzle (30) around the outer periphery of the winding core (13) And a feed mechanism (60) for moving the nozzle (30) or the core (13) in the axial direction of the core (13) in synchronization with the winding by the winding mechanism (20). In the device
A nozzle tilting mechanism (90) for tilting the nozzle (30) in a plane parallel to the axis of the nozzle (30) and the axis of the core (13);
The tilt angle of the nozzle (30) is determined by the feed mechanism (60) feeding the nozzle (30) or the core (13) when the winding mechanism (20) winds the core (13). A control mechanism for controlling the nozzle tilting mechanism (90) to coincide with the tilt angle given to the wire (11);
With
The shape of the hole (30a) of the nozzle (30) can pass a plurality of wires (11) arranged in a line in a plane parallel to the axis of the nozzle (30) and the axis of the core (13). Formed in a long oval or rectangular shape,
At least a part of the tip edge of the nozzle (30) from which the plurality of wires (11) are fed side by side in a tilted state is formed so as to be cut along the core (13) ,
A multi-wire winding apparatus , wherein a guide member (34) for supporting the core (13) is provided in the vicinity of the nozzle (30) . The guide member (34) has a pair of wall members (34a, 34b) sandwiching the nozzle (30), and accommodates and supports the winding core (13) at the edge of the pair of wall members (34a, 34b). The multi-wire winding apparatus according to claim 1, wherein the concave grooves (34c to 34e) are formed. Equipped with a nozzle reversing mechanism (80) that rotates the nozzle (30) around the axis to reverse it, and the feed mechanism (60) can reciprocate the nozzle (30) or core (13) in the direction of the core (13). The multi-wire winding apparatus according to claim 1 or 2, which is configured as follows. A nozzle movable mechanism (85) for reciprocating the nozzle (30) in the axial direction is provided, and the nozzle movable mechanism (85) moves the nozzle (30) away from the core (13) to the core (13). The tip (30b-30d) at least a part of the nozzle (30) is brought close to the core (13) or the wire (11) already wound around the core (13). The multi-wire winding apparatus according to any one of claims 1 to 3 . The wire (11) fed through the hole (30a) of the nozzle (30) is wound around the outer periphery of the winding core (13), and the nozzle (30) or the winding core (13 ) In the winding method of moving the winding core (13) in the axial direction and aligning and winding the wire (11) on the outer periphery of the winding core (13),
A plurality of wires (11) can pass through the shape of the hole (30a) of the nozzle (30) in a plane parallel to the axis of the nozzle (30) and the axis of the winding core (13). While forming to be a long oval or rectangular shape,
Formed by cutting out at least a part of the tip edge of the nozzle (30) from which the plurality of wires (11) are fed,
By tilting the nozzle (30) within a plane parallel to the axis of the nozzle (30) and the axis of the winding core (13), the nozzle (30) is wound around the winding core (13). Alternatively, the nozzle (30) is given a tilt angle that matches the tilt angle given to the plurality of wire rods (11) by feeding the core (13),
The aligned winding is performed after at least a part of the notch (30b to 30d) of the tip edge of the nozzle (30) is aligned with the core (13). Turn the leading edge of the nozzle (30) during the winding-away Claim contacting at least a portion of (30b to 30d) to the winding core (13) or the winding already wound wire rod to the core (13) (11) 5. The multi-wire winding method according to 5. Winding in which the nozzle (30) or the core (13) is reciprocated in the axial direction of the core (13), and a plurality of wires (11) are wound around the core (13) in an aligned manner over a plurality of layers. The multi-wire winding method according to claim 5 or 6 , wherein the nozzle (30) is reversed when the nozzle (30) or the winding core (13) moves forward and backward.

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