Winding machine and winding method

Abstract

The winding machine (10) of the present invention comprises: a winding core (12), which has a winding drum portion (13) and flanges (14, 15) arranged on both sides of the rotating axis of the winding drum portion (13), and winds the wire (11) supplied from the wire reel (10a) onto the rotating winding drum portion (13); a guide component (16), which rotates together with the winding core (12) to guide the wire (11) to the winding drum portion (13); and an axial moving unit (30, 130), which moves the guide component (16) along the rotating axis of the winding core (12).

Description

Technical Field

[0001] The invention relates to a wire winding machine and a wire winding method. Background Art

[0002] Conventionally, a coil wound with a wire is used in a rotating electrical machine such as a motor or a generator, and the number of windings of the wire is increased to increase the output. However, simply increasing the number of windings of the wire leads to an increase in the size of the rotating electrical machine. Therefore, the ratio of the sum of the cross-sectional area of ​​the wire between the magnetic poles of the rotating electrical machine to the cross-sectional area of ​​the slot for accommodating the coil (hereinafter referred to as the space factor) can be increased.

[0003] Here, increasing the space factor means reducing the gap between the wound wires. To this end, a winding device is proposed that provides a nozzle separately from a rotating winding core near the winding core and uses the nozzle to guide the wire so that the wire is neatly wound around the winding core (for example, refer to JP2015-50364A).

[0004] In this manner, in a typical straight winding machine, a wire is guided to the vicinity of a rotating winding core using a nozzle, and the wire is wound with the nozzle brought as close to the winding core as possible, thereby performing straight winding. Summary of the invention

[0005] Thus, in the conventional winding machine, when a nozzle is used to guide the wire and the wire fed therefrom is neatly wound onto a rotating winding core, the nozzle needs to be brought close to the winding core. However, when a winding core having flanges on both sides of the rotating axis of a winding drum portion for actually winding the wire is used, if the end of the nozzle feeding the wire is brought close to the flange-side end of the winding drum portion, there is a risk that the nozzle itself will directly contact the flange.

[0006] Therefore, if a winding core with flanges formed on both sides of the winding drum is used, in order to set the nozzle on the outer side of the rotation radial direction of the flange in a manner that does not interfere with the rotating flange to guide the wire, a gap greater than the flange height will be generated between the nozzle and the winding drum.

[0007] In addition, for a winding core whose winding drum section is formed into a square shape, since the corner of the winding drum section is farthest from the rotation center, when the nozzle is opposite to the corner of the winding drum section, the nozzle must not contact the flanges provided on both sides of the winding drum section. In this way, the nozzle will be further away from the corner of the winding drum section and the flat portion between the corners.

[0008] Therefore, when the wire is wound onto a winding core having flanges formed on both sides of a winding drum portion, even if a nozzle is used to guide the wire, the nozzle cannot be brought sufficiently close to the winding drum portion actually used to wind the wire. If the wire fed from the nozzle is tilted, it is difficult to guide the wire to the desired position of the winding drum portion of the winding core.

[0009] In addition, if it becomes difficult to guide the wire to the desired position of the winding drum, as the number of winding layers of the wire wound on the winding core increases, the winding disorder will gradually occur, making it difficult to wind the wire tightly, that is, it is difficult to wind neatly. In particular, when the number of layers exceeds two digits, it becomes significantly difficult to wind neatly in all layers.

[0010] An object of the present invention is to provide a wire winding machine and a wire winding method that can guide a wire to a desired position of a winding drum and achieve neat winding.

[0011] According to one embodiment of the present invention, a winding machine includes: a winding core, which has a winding drum portion and flanges arranged on both sides of the rotating axis of the winding drum portion, and winds a wire supplied from a supply source onto the rotating winding drum portion; a guide component, which rotates together with the winding core to guide the wire to the winding drum portion; and an axial moving unit, which moves the guide component along the rotating axis of the winding core.

[0012] According to another aspect of the winding method of the present invention, a winding core having flanges on both sides of a rotating axis of a winding drum portion is rotated to wind a wire material onto the winding drum portion, wherein a guide component is rotated together with the winding core, the guide component guides the wire material supplied from a supply source to the winding drum portion, and the wire material guided by the guide component is wound onto the winding drum portion. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is an enlarged view of the vicinity of the winding core of the winding machine according to the embodiment of the present invention.

[0014] Figure 2 It is an enlarged view of the main support rotating unit of the winding machine according to the embodiment of the present invention.

[0015] Figure 3 This is a front view showing a state in which the flange on one side is away from the winding drum portion using the winding machine according to the embodiment of the present invention. Figure 4 The corresponding figure.

[0016] Figure 4 It is a front view of a winding machine according to an embodiment of the present invention.

[0017] Figure 5 It is a top view of a winding machine according to an embodiment of the present invention.

[0018] Figure 6 To show the core Figure 2 AA line section view.

[0019] Figure 7 To illustrate the radial movement of the unit Figure 2 BB line cross-sectional view.

[0020] Figure 8 This is a perspective view showing a state in which the wire is guided to the winding drum by the guide member.

[0021] Fig. 9 For Figure 8 Figure viewed in the direction of arrow C.

[0022] Fig.10 A top view of a winding core showing the beginning of winding of the wire.

[0023] Fig.11 To show a winding core having a layer of wire wound around the winding drum portion between the flanges, Fig. 9 The corresponding top view.

[0024] Fig.12 To show the winding core on which the wire is wound again on the first layer of wire, Fig.10 The corresponding top view.

[0025] Fig.13 To show the winding core on which the second layer of wire has been wound on the first layer of wire, Fig.11 The corresponding top view.

[0026] Fig.14 The winding core having multiple layers of wires wound around the winding drum is shown in FIG. Fig.11 The corresponding top view. DETAILED DESCRIPTION

[0027] Next, embodiments of the present invention will be described in detail based on the drawings.

[0028] exist Figures 3 to 5 A winding machine 10 according to an embodiment of the present invention is shown. In each figure, three axes X, Y, and Z are set to be orthogonal to each other, and the X axis is defined to extend in a substantially horizontal lateral direction, the Y axis to extend in a substantially horizontal front-to-back direction, and the Z axis to extend in a vertical direction, and the structure of the winding machine 10 is described.

[0029] The winding machine 10 is a device for winding a wire from a drum 10a ( Figure 5) is a winding machine 10 that winds a wire 11 supplied from a bobbin 10a onto a drum portion 13 between flanges 14 and 15 of a rotating winding core 12. Therefore, the winding core 12 of the winding machine 10 has a drum portion 13 and flanges 14 and 15 provided on both sides of the drum portion 13. In other words, the winding machine 10 includes a winding core 12, which has a drum portion 13 and flanges 14 and 15 provided on both sides of the rotating axis of the drum portion 13, and winds the wire 11 supplied from a bobbin 10a onto the rotating drum portion 13.

[0030] like Figure 3 to Figure 6 As shown, the cross section of the winding drum portion 13 of the winding core 12 of this embodiment is formed into a square shape, and the outer diameters of the flanges 14 and 15 for limiting the winding width of the wire 11 wound around the winding drum portion 13 are formed into a square shape having a larger outer shape than the outer shape of the winding drum portion 13. Figure 3 As shown, one flange 14 is detachably mounted on one end side of the drum portion 13 , and the other flange 15 is directly mounted on the other end of the drum portion 13 .

[0031] The winding machine 10 includes: a main support rotation unit 20 (main support rotation mechanism) that supports and rotates the flange 15 and the drum portion 13 on the other side; and a secondary support rotation unit 120 (secondary support rotation mechanism) that supports and rotates the flange 14 on one side in a coaxial manner with the drum portion 13. In addition, a stopper (not shown) for holding the wire 11 to be wound and a cutout 14b (not shown) for introducing the wire 11 stopped by the stopper into the drum portion 13 are formed on the flange 14 on one side. Fig.10 ).

[0032] In this embodiment, the main support rotating unit 20 and the auxiliary support rotating unit 120 are formed into a symmetrical structure. Figure 2 The main support rotating unit 20 shown in the right half is described as a representative.

[0033] In the winding core 12, the other flange 15 is mounted on the other end side of the winding drum portion 13, and a rotating spindle 21 is provided on the winding core 12 from the flange 15 side in a manner coaxial with the center of the winding core 12. The rotating spindle 21 extends in a horizontal lateral direction (Y-axis direction) and its front end is pivotally supported on a support column 22. The support column 22 is uprightly provided on a base 23, and a winding electric motor (motor) 24 for rotating the rotating spindle 21 is mounted on the support column 22 in a state where its rotating shaft 24a is coaxial with the rotating spindle 21.

[0034] The rotating shaft 24a of the winding motor 24 is connected to the rotating main shaft 21 by a coupling 24b, and is configured so that when the winding motor 24 is driven to rotate the rotating shaft 24a, the rotating main shaft 21 connected to the rotating shaft 24a is rotated. In addition, when the rotating main shaft 21 is rotated, the winding core 12 provided on the rotating main shaft 21, that is, the winding drum portion 13 and the flange 15 on the other side are rotated.

[0035] In addition, the winding machine 10 of the present embodiment is provided with a guide member 16 that rotates together with the winding core 12 and guides the wire 11 supplied from the bobbin 10a to the winding drum portion 13. In other words, the winding machine 10 is provided with a guide member 16 that rotates together with the winding core 12 and guides the wire 11 to the winding drum portion 13. Specifically, the cylinder 26 is sleeved on the rotating main shaft 21 between the support column 22 and the flange 15. The cylinder 26 is sleeved in a manner that it can move along its length direction relative to the rotating main shaft 21, but cannot rotate relative to the rotating main shaft 21. In addition, a pivot support plate 27 that is orthogonal to the rotating main shaft 21 and is spaced apart from the flange 15 on the other side is installed at the end edge of the flange 15 side of the cylinder 26, and the guide member 16 is provided on the pivot support plate 27.

[0036] The end of the support column 22 side of the cylinder 26 is pivotally supported on the movable column 28. The movable column 28 is uprightly provided on the movable table 29, and the movable table 29 is provided on the base 23 in a manner movable in the Y-axis direction. An axial moving unit 30 (axial moving mechanism) that moves the movable table 29 along the rotation axis of the winding core 12 together with the cylinder 26, the pivot support plate 27, and the guide member 16 is provided on the base 23. In other words, the winding machine 10 includes the axial moving units 30, 130 that move the guide member 16 along the rotation axis of the winding core 12.

[0037] The axial moving unit 30 of this embodiment has: a pair of guide rails 31, which extend along the rotation axis (X-axis direction) of the winding core 12 and are arranged parallel to each other on the base 23; a movable table 29, which is arranged on the pair of guide rails 31 in a manner that can be moved along the rotation axis of the winding core 12; a ball screw 32, which is arranged on the base 23 in a manner that extends along the X-axis direction in a manner that passes through the center of the pair of guide rails 31; and a moving electric motor (motor) 33, which is connected to the ball screw 32 in a manner that can rotate the ball screw 32.

[0038] The moving motor 33 of this embodiment is a servo motor capable of changing the rotation speed of the ball screw 32 , and the ball screw 32 is coaxially mounted on the rotation shaft thereof. The nut member 29 a screwed to the ball screw 32 is mounted on the movable table 29 .

[0039] The control output of the controller (not shown) is connected to the moving motor 33. In addition, when the moving motor 33 is driven based on the command from the controller to rotate the ball screw 32, the movable table 29 screwed to the ball screw 32 by the nut member 29a moves along the rotation axis (X-axis direction) of the winding core 12 together with the cylinder 26, the pivot support plate 27, and the guide member 16.

[0040] like Figure 3 to Figure 5 As shown, the main support rotating unit 20 and the auxiliary support rotating unit 120, and the structure provided thereon to support and move the guide member 16 are configured to be bilaterally symmetrical. The components on the auxiliary support rotating unit 120 side and corresponding to the components on the main support rotating unit 20 side are indicated by adding 100 to the symbols indicating the components of the main support rotating unit 20.

[0041] The main support rotating unit 20 is mounted on the base 17 via the boss 18 , and the auxiliary support rotating unit 120 having a symmetrical structure with the main support rotating unit 20 is mounted on the base 17 via the flange detachable unit 50 (flange detachable mechanism).

[0042] The flange separation unit 50 of this embodiment has the same structure as the above-mentioned axial moving unit 30, and has: a pair of guide rails 51, which extend along the rotation axis (X-axis direction) of the winding core 12 and are arranged parallel to each other on the base 17; a ball screw 52, ​​which is arranged to extend along the X-axis direction in a manner that passes through the center of the pair of guide rails 51; and a separation motor (motor) 53, which is connected to the ball screw 52 in a manner that allows the ball screw 52 to rotate.

[0043] The base 123 of the auxiliary support rotating unit 120 is movably mounted on the pair of guide rails 51. The ball screw 52 is coaxially mounted on the rotating shaft 53a of the separation motor 53, and the nut 123a screwed to the ball screw 52 is mounted on the base 123 of the auxiliary support rotating unit 120.

[0044] In addition, the control output of the controller not shown is connected to the separation motor 53, and is configured such that if the separation motor 53 is driven to rotate the ball screw 52 based on an instruction from the controller, the nut member 123a screwed to the ball screw 52 moves along the rotation axis (X-axis direction) of the winding core 12 together with the auxiliary support rotation unit 120.

[0045] When the auxiliary support rotating unit 120 is moved by the flange contact / detachment unit 50, the interval between the flange 14 and the reel 13 supported by the auxiliary support rotating unit 120 changes. Figure 4 As shown in FIG. 1 , the flange 14 on one side is brought into contact with one end of the winding drum portion 13, thereby allowing the wire 11 to be wound around the winding drum portion 13. Figure 3 As shown, the flange 14 on one side is moved away from one end of the drum portion 13, so that the wire 11 wound on the drum portion 13 can be loaded and unloaded from the drum portion 13. In other words, the winding machine 10 further includes a flange connection and disconnection unit 50, which makes the flange 14 on one side of the drum portion 13 detachably disposed away from or close to the drum portion 13.

[0046] like Figure 5 As shown, in the winding machine 10 of this embodiment, the supply source is a bobbin 10a, and the wire 11 is wound and stored on the bobbin 10a. The bobbin 10a is pivotally supported on a movable platform 10c, and a tension device 10b is provided on the movable platform 10c to give a predetermined tension to the wire 11 fed from the bobbin 10a. Figure 5 Reference numeral 10g in FIG. 1 denotes a nozzle 10g provided in the tension device 10b and configured to pass the wire 11 fed from the wire reel 10a toward the winding core 12 .

[0047] In addition, the winding machine 10 is provided with a nozzle moving unit 10h (nozzle moving mechanism) for moving the nozzle 10g along the rotation axis of the winding core 12. The nozzle moving unit 10h includes: a track 10d on which a moving table 10c is mounted, which is adjacent to the winding core 12 and is arranged on a base 17 parallel to the rotation axis of the winding core 12; a ball screw 10e which is screwed to the moving table 10c and is arranged parallel to the track 10d; and a motor 10f which rotates the ball screw 10e to move the moving table 10c along the track 10d.

[0048] like Figure 1 As shown, the winding machine 10 is provided with a guide member 16 for guiding the wire 11 to the drum portion 13. The guide member 16 of the present embodiment has a pair of guide plates 16a, 16b respectively penetrating the flanges 14, 15 provided on both sides of the drum portion 13 and provided in parallel with the rotation axis of the winding core 12, one of which is provided on the pivot support plate 127 of the auxiliary support rotation unit 120, and the other is provided on the pivot support plate 27 of the main support rotation unit 20. In addition, as described later, a gap S is formed between the opposing front ends of the pair of guide plates 16a, 16b through which the wire 11 can pass. In other words, the guide member 16 has a pair of guide plates 16a, 16b provided in parallel with the rotation axis of the winding core 12, with the front ends facing each other in a manner that there is a gap S through which the wire 11 can pass.

[0049] In this embodiment, if Figure 6As shown, a winding core 12 is used in which the cross section of the winding drum 13 is formed into a square shape and four flat portions are formed around it. Therefore, when the wire 11 is wound around the winding drum 13, the wire 11 covering the surrounding flat portions becomes a straight line, and thus the flat portions form a straight winding portion 13a that makes the wire 11 straight. The guide members 16 are respectively provided opposite to the four straight winding portions 13a. In addition, the guide members 16 are provided at the start winding position ( Figure 8 In other words, the winding core 12 has a plurality of straight winding portions 13a for straightening the wire 11 wound on the winding drum portion 13, and the guide members 16 are provided to face the plurality of straight winding portions 13a.

[0050] That is, Figure 1 , Figure 2 , Figure 6 , Figure 8 and Fig. 9 As shown, at the opposing positions of the flanges 14 and 15 provided on both sides of the winding drum portion 13, slots 14a and 15a for guide plates 16a and 16b to pass through are formed corresponding to the winding start position of the linear winding portion 13a. The guide plates 16a and 16b are provided to be inserted into the slots 14a and 15a and parallel to the rotation axis.

[0051] Figure 1 The guide plates 16a, 16b are arranged to penetrate the flanges 14, 15 and be parallel to the rotation axis of the winding core 12 by being inserted into the slots 14a, 15a. Figure 1 As shown, the base ends of the guide plates 16 a and 16 b inserted into the slits 14 a and 15 a are attached to the respective pivot support plates 27 and 127 of the main support rotation unit 20 and the auxiliary support rotation unit 120 .

[0052] In this embodiment, the guide plates 16a and 16b are provided on the pivot support plates 27 and 127 so as to be movable in the rotation radial direction of the winding core 12. The guide plate 16b provided on the pivot support plate 27 of the main support rotation unit 20 and penetrating and fixed to the flange 15 on the other side of the winding drum portion 13 is described as a representative. Figure 2 and Figure 7 As shown, a rail 36 extending in the radial direction is attached to the pivot support plate 27 on which the guide plate 16b is to be provided so as to be parallel to the slot 15a of the flange 15. In addition, a movable plate 37 is mounted on the rail 36 so as to be reciprocally movable.

[0053] The slit 27a opposite to the slit 15a of the flange 15 is formed in the pivot support plate 27. The base end of the guide plate 16b inserted into the slit 15a of the flange 15 and passing through the slit 27a of the pivot support plate 27 is attached to the movable plate 37. In addition, the main support rotation unit 20 has a radial movement unit 40 (radial movement mechanism) that moves the guide plate 16b in the rotation radial direction of the pivot support plate 27. In other words, the winding machine 10 further includes radial movement units 40, 140 that move the guide member 16 in the radial direction of the winding core 12.

[0054] like Figure 2 As shown, the radial moving unit 40 of this embodiment comprises: an outer cylinder 41, which can move along the length direction of the cylinder 26 with a pivot support plate 27 at the end and is non-rotatably mounted on the cylinder 26 relative to the cylinder 26; a connecting member 42, which is used to connect the outer cylinder 41 and the movable plate 37; and a cylinder moving unit 43 (cylinder moving mechanism) which enables the outer cylinder 41 to move along the length direction of the rotating main shaft 21.

[0055] The drum moving unit 43 has the same structure as the above-mentioned axial moving unit 30. The drum moving unit 43 of this embodiment has: a pair of guide rails 44, which extend along the rotation axis direction (X-axis direction) of the winding core 12 and are arranged parallel to each other on the movable table 29; a clamping member 46, which is arranged on the pair of guide rails 44 in a manner that can move along the rotation axis direction of the drum body 26; a ball screw 47, which extends along the X-axis direction and is arranged on the movable table 29 ( Figure 1 and Figure 4 ); a drum moving motor (motor) 48, which is connected to the ball screw 47 in such a manner that the ball screw 47 can rotate.

[0056] The cylinder moving motor 48 of this embodiment is a servo motor capable of changing the rotation speed of the ball screw 47, the ball screw 47 is coaxially mounted on its rotation axis, and the engaging member 46 is screwed to the ball screw 47. A circular flange 41a extending in the radial direction is formed on the outer cylinder 41, and the engaging member 46 clamps the flange 41a from the axial direction of the outer cylinder 41, so as to allow the outer cylinder 41 to rotate while prohibiting its axial movement independent of the engaging member 46.

[0057] In addition, the control output of the controller (not shown) is connected to the cylinder moving motor 48. When the cylinder moving motor 48 is driven based on the command from the controller to rotate the ball screw 47, the engaging member 46 screwed to the ball screw 47 moves along the rotation axis (X-axis direction) of the cylinder body 26 together with the outer cylinder 41.

[0058] The structure is such that if the outer cylinder 41 is moved by such a cylinder moving unit 43, the interval between the outer cylinder 41 and the pivot support plate 27 is changed, and the movable plate 37 movably arranged on the pivot support plate 27 and connected to the outer cylinder 41 by means of a connecting member 42 moves along the rotation radial direction of the pivot support plate 27 together with the guide plate 16b.

[0059] That is, if the radial moving unit 40 having such a cylinder moving unit 43 moves the outer cylinder 41 through the cylinder moving unit 43, the multiple movable plates 37 arranged on the pivot support plate 27 are moved radially at the same time, and all the guide plates 16b whose base ends are installed on the multiple movable plates 37 are moved at the same time to change their distance from the outer surface of the winding cylinder portion 13 of the winding core 12.

[0060] Here, the structure in which the guide plate 16a is provided on the pivot support plate 127 of the auxiliary support rotation unit 120 and the structure in which the guide plate 16b is provided on the pivot support plate 27 of the main support rotation unit 20 are symmetrical structures, and repeated descriptions are omitted. The components of the auxiliary support rotation unit 120 corresponding to the main support rotation unit 20 are indicated by adding 100 to the component symbols of the main support rotation unit 20.

[0061] The controller (not shown) synchronously controls the radial movement units 40 and 140 of the main support rotating unit 20 and the auxiliary support rotating unit 120 so that the distances to the outer surface of the winding drum portion 13 of the winding core 12 are the same and the front ends of the pair of guide plates 16a and 16b are always opposite to each other.

[0062] Furthermore, the controller (not shown) controls the axial movement units 30 and 130 of the main support rotation unit 20 and the auxiliary support rotation unit 120, respectively, so that the pivot support plates 27 and 127 and the guide member 16 move along the rotation axis (X-axis direction) of the winding core 12 to adjust the position. Thus, the gap S ( Fig. 9 ), and a gap S is formed therebetween through which the wire 11 can pass. In other words, the axial movement unit 30, 130 is configured to change the gap S between the pair of guide plates 16a, 16b.

[0063] In addition, the controller (not shown) synchronously controls the winding motors 24, 124 of the main support rotating unit 20 and the auxiliary support rotating unit 120, respectively, so that the winding core 12 provided on the rotating main shafts 21, 121 of these units, that is, the winding core 12 composed of the winding drum portion 13 provided with flanges 14, 15 on both sides, rotates integrally. In addition, the wire 11 supplied from the wire drum 10a is controlled to be wound around the winding drum portion 13 between the flanges 14, 15.

[0064] like Figure 8As shown in FIG. 1 , when the wire 11 is wound, the guide member 16 rotating together with the winding core 12 guides the wire 11 to the winding drum portion 13. Figure 8 and Fig. 9 As shown, in the present embodiment, the guide member 16 has a pair of guide plates 16a and 16b, and inclined edges 16c and 16d are formed at the opposing front end edges of the pair of guide plates 16a and 16b, the interval between which increases as the distance from the winding drum portion 13 of the winding core 12 increases.

[0065] The inclined edges 16c and 16d are configured as follows: Fig. 9 As shown by the single-dot dash line, the wire 11 that is offset from the gap S through which the wire 11 can pass relative to the front end edges of a pair of guide plates 16a, 16b toward the gap S contacts the inclined edges 16c, 16d, and as shown by the single-dot dash line arrow, the wire 11 is guided to the gap S through which the wire 11 can pass by the inclination.

[0066] In addition, the controller (not shown) controls the axial movement units 30 and 130 of the main support rotation unit 20 and the auxiliary support rotation unit 120, respectively, so that the pivot support plates 27 and 127 and the guide member 16 are moved along the rotation axis direction (X axis direction) of the winding core 12 to adjust the position. Thus, the pair of guide plates 16a and 16b are moved at the same speed along the rotation axis direction of the winding core 12 while maintaining the gap S formed between the opposing front end edges of the pair of guide plates 16a and 16b through which the wire 11 can pass. In other words, the axial movement units 30 and 130 are configured to move the pair of guide plates 16a and 16b along the rotation axis direction of the winding core 12 at the same speed as each other while maintaining the gap S between the pair of guide plates 16a and 16b.

[0067] Next, the winding method of the present invention using the winding machine configured as described above will be described.

[0068] The winding method of the present embodiment is a winding method for winding the wire 11 supplied from the bobbin 10a as a supply source to the drum portion 13 between the flanges 14 and 15 of the rotating core 12 by rotating the core 12 provided with flanges 14 and 15 on both sides of the rotation axis of the drum portion 13. In other words, the winding method of the present embodiment is a winding method for winding the wire 11 to the drum portion 13 by rotating the core 12 provided with flanges 14 and 15 on both sides of the rotation axis of the drum portion 13.

[0069] Since the winding machine 10 is used, the winding core 12 is used, in which the flange 14 is mounted to be detachable on one end side of the winding drum 13 and the flange 15 is directly mounted on the other end of the winding drum 13. In addition, the winding drum 13 and the flange 15 are supported by the main support rotation unit 20, and the flange 14 is supported by the auxiliary support rotation unit 120 in a manner coaxial with the winding drum 13. In addition, as Figure 4 As shown, the wire is wound in a state where one flange 14 contacts one end of the winding drum portion 13 .

[0070] On the other hand, since the above-mentioned winding machine 10 is used, Figure 5 As shown, the wire 11 is prepared to be wound around the wire drum 10a, and the wire 11 is drawn out from the wire drum 10a and inserted into the nozzle 10g of the tension device 10b. Fig.10 In the embodiment, the wire 11 inserted into the nozzle 10g is stopped at a stopper (not shown) of one flange 14, and the wire 11 stopped at the stopper is introduced into the winding drum 13 from the cutout 14b. At this time, preferably, the nozzle moving unit 10h ( Figure 5 ) The nozzle 10g is moved to a position where the wire 11 introduced into the winding drum portion 13 is placed along one flange 14.

[0071] Then, the winding core 12 is rotated to perform winding. Figure 4 and Figure 5 As shown, the winding core 12 is rotated by synchronously controlling the winding motors 24 and 124 of the main support rotating unit 20 and the auxiliary support rotating unit 120. The wire 11 supplied from the bobbin 10a through the nozzle 10g is wound around the winding drum portion 13 between the flanges 14 and 15 of the rotating winding core 12.

[0072] The winding method of this embodiment is characterized in that, during such winding, the guide member 16 that guides the wire 11 supplied from the wire reel 10 a to the winding drum portion 13 is rotated together with the winding core 12 , and the wire 11 guided by the guide member 16 is wound around the winding drum portion 13 .

[0073] In the winding machine 10, the cylinder 26, 126 is placed on the rotating main shaft 21, 121 on which the winding core 12 is mounted in a non-rotatable manner, and the guide member 16 is provided on the pivot support plate 27, 127 integrally provided on the cylinder 26, 126. Therefore, the winding motor 24, 124 is driven to rotate the rotating main shaft 21, 121 together with the winding core 12, thereby, the guide member 16 can be rotated together with the winding core 12 at the same time.

[0074] The guide member 16 is used to guide the wire 11 supplied from the wire drum 10a to a desired position in the rotation axis direction of the winding drum portion 13. When winding, the controller (not shown) of the winding machine 10 controls the axial movement units 30 and 130 of the main support rotation unit 20 and the auxiliary support rotation unit 120, respectively, so that a gap S ( 20 ) is formed between the front end edges of the pair of guide plates 16a and 16b, through which the wire 11 can pass. Fig. 9 ). By passing the wire 11 through the gap S, the wire 11 is guided to a desired position of the winding drum portion 13.

[0075] In addition, the radial movement units 40 and 140 of the main support rotating unit 20 and the auxiliary support rotating unit 120 are synchronously controlled to make the pair of guide plates 16a and 16b approach the outer surface of the winding drum portion 13 of the winding core 12. Fig. 9 As shown, it is preferable that the interval t between the outer surface of the drum portion 13 and the pair of guide plates 16 a and 16 b is set to a gap slightly wider than the outer diameter d of the wire 11 .

[0076] Here, in the present embodiment, the winding is performed using the winding core 12 whose cross section of the winding drum portion 13 is formed into a square shape, but since the guide member 16 is rotated together with the winding core 12, the relative positional relationship between the guide member 16 and the winding core 12 does not change even if the winding core 12 rotates. Therefore, the guide member 16 does not interfere with the winding drum portion 13 of the winding core 12. According to this, even the flat straight winding portion 13a between the corner portions of the outer periphery of the winding drum portion 13 can be sufficiently close to the guide member 16.

[0077] In the state where the guide member 16 is brought close to the reel portion 13 as described above, Figure 8 As shown, the winding core 12 and the guide member 16 are rotated together to remove the wire reel 10a ( Figure 5 ) and passed between the opposing front end edges of a pair of guide plates 16a and 16b, and is wound around the reel portion 13 between the flanges 14 and 15 of the rotating winding core 12.

[0078] So, like Fig. 9 As shown, the wire material 11 that has passed between the facing front end edges of the pair of guide plates 16 a and 16 b directly reaches the winding drum portion 13 , so that the wire material 11 can be reliably guided to a desired position.

[0079] In this embodiment, if Fig. 9As shown, inclined edges 16c and 16d are formed at the opposite front edges of the pair of guide plates 16a and 16b, respectively. Therefore, even if the wire 11 moves from the axial direction of the offset reel portion 13 toward the gap S between the opposite front edges of the pair of guide plates 16a and 16b, the wire 11 can contact the inclined edges 16c and 16d and move toward the gap S, and be guided from the gap S to the desired position of the reel portion 13.

[0080] In addition, while maintaining the gap S between the front ends of the pair of guide plates 16a and 16b, Fig. 9 As shown by the dotted arrows, the pair of guide plates 16a and 16b are moved at the same speed as each other along the rotation axis of the winding core 12, so that the guide member 16 composed of the pair of guide plates 16a and 16b moves along the rotation axis of the winding core 12 by an amount equivalent to the outer diameter of the wire 11 every time the winding core 12 rotates one circle. In other words, in the winding method of this embodiment, the guide member 16 moves along the rotation axis of the winding core 12 by an amount equivalent to the outer diameter of the wire 11 every time the winding core 12 rotates one circle.

[0081] In this way, the wire 11 wound around the drum portion 13 is wound so as to be closely adjacent to the wire 11 already wound around the drum portion 13 in the rotation axis direction. Figure 5 ) It is preferred that the nozzle 10g and the guide member 16 move in the same direction and at the same speed.

[0082] In particular, in this embodiment, the guide member 16 is provided at the start winding position of the straight winding portion 13a of the reel portion 13 having a square cross section, so that the wire 11 is correctly guided to the start winding position of the straight winding portion 13a. In addition, the wound wires 11 arranged therein are surely in close contact with the wires 11 and the gaps therebetween are reduced, that is, the winding can be done neatly.

[0083] In addition, if Fig.11 As shown, if the wire 11 is tightly wound around the entire drum portion 13 between the flanges 14 and 15 , the first layer of winding is achieved on the drum portion 13 .

[0084] When the wire 11 is further wound on the first layer after the first layer of winding is completed, the radial movement units 40 and 140 of the main support rotating unit 20 and the auxiliary support rotating unit 120 are synchronously controlled again. In addition, the interval from the winding drum 13 to the pair of guide plates 16a and 16b is expanded, as shown in FIG. Fig.12 As shown, the gap between the outer surface of the wire 11 wound neatly in the first layer of the winding drum 13 and the pair of guide plates 16 a and 16 b is made slightly wider than the outer diameter of the wire 11 .

[0085] Then, the winding core 12 is rotated together with the guide member 16, while maintaining the gap S between the front edges of the pair of guide plates 16a and 16b. Fig.13 As shown by the solid arrows, the pair of guide plates 16a and 16b are moved at the same speed along the rotation axis of the winding core 12. In addition, the guide member 16 composed of the pair of guide plates 16a and 16b moves an amount equivalent to the outer diameter of the wire 11 every time the winding core 12 rotates once.

[0086] Even at this time, the nozzle moving unit 10h ( Figure 5 ) It is also preferred that the nozzle 10g is moved in the same direction and at the same speed as the guide member 16. In this way, the wire 11 that has passed between the opposing front ends of the pair of guide plates 16a and 16b is further wound neatly onto the outer surface of the first layer of wire 11 that has been neatly wound around the winding drum portion 13, thereby tightly and neatly winding the second layer of wire 11 onto the first layer of wire 11.

[0087] Repeat this process, such as Fig.14 As shown, the wire material 11 may be wound in multiple layers around the winding drum portion 13 of the winding core 12 .

[0088] In addition, after the winding core 12 is wound with the wire 11 a desired number of times, as shown in FIG. Figure 3 As shown, the flange 14 is moved away from one end of the drum portion 13 by the flange separation unit 50 , so that the wire 11 wound on the drum portion 13 is separated from the drum portion 13 .

[0089] Here, the winding core 12 has grooves 14a and 15a formed in the flanges 14 and 15 provided on both sides of the winding drum portion 13, and a pair of guide plates 16a and 16b are inserted into the grooves 14a and 15a. Therefore, if the pair of guide plates 16a and 16b are moved along the rotation axis of the winding core 12, as shown in FIG. Figures 10 to 13 As shown, the front end edge of any one of the guide plates 16a, 16b can be in the same plane as the inner side surfaces of the flanges 14, 15.

[0090] In this way, if the front end edge of any guide plate 16a, 16b is placed in the same plane as the inner side surface of the flanges 14, 15, the wire 11 passing between the opposite front end edges of a pair of guide plates 16a, 16b will be guided to the reel portion 13 adjacent to the flanges 14, 15 or to the already wound wire 11.

[0091] Therefore, starting from this state, the wire 11 is wound in such a manner that the pair of guide plates 16a and 16b move along the rotation axis of the winding core 12 by an amount equivalent to the outer diameter of the wire 11 every time the winding core 12 rotates one circle, thereby allowing the wire 11 to be neatly wound around the entire winding drum portion 13 between the flanges 14 and 15.

[0092] Accordingly, according to the present embodiment, even if the number of winding layers of the wire 11 wound on the winding core 12, that is, the number of winding layers in the radial direction of rotation of the wire 11 of the drum portion 13 tightly wound between the flanges 14 and 15 in the axial direction of rotation increases, the wire 11 can be tightly and neatly wound between the flanges 14 and 15 in each layer. Thus, the winding disorder of the wire 11 can be prevented, and neat winding can be performed in all layers even when the number of layers exceeds two digits.

[0093] In addition, in the above-mentioned embodiment, the cross section of the winding drum portion 13 of the winding core 12 is formed in a square shape, and four straight winding portions 13a as flat portions are formed around the winding drum portion 13. That is, when the wire 11 is wound around the winding drum portion 13, the wire 11 becomes a straight line at the straight winding portion 13a, so the winding core 12 having four straight winding portions 13a for making the wire 11 straight is used, and the guide member 16 is provided in all four straight winding portions 13a.

[0094] However, the cross-sectional shape of the winding drum portion 13 is not limited to a square shape, and for example, the winding drum portion 13 may be formed into a circular, elliptical, or track-shaped winding core 12. For example, in the case of a winding drum portion 13 having a track-shaped cross-sectional shape, two straight winding portions 13a are formed around the winding drum portion 13. Even in such a winding core 12, by providing the guide member 16 in the two straight winding portions 13a, the wire 11 can be guided to the desired position of the winding drum portion 13 and wound neatly.

[0095] In the above embodiment, the guide member 16 has a pair of guide plates 16a and 16b. However, the guide member 16 is not limited thereto and may be another form as long as it can rotate with the winding core 12 and guide the wire 11 supplied from the wire reel 10a to the winding drum portion 13.

[0096] In addition, in the above embodiment, the case where the pair of guide plates 16a and 16b are provided at the start winding position of the linear winding portion 13a is described. However, the guide member 16 may be provided at the center of the winding direction of the linear winding portion 13a, at the end winding position of the linear winding portion 13a, or at both the start winding position and the end winding position. In other words, the guide member 16 may be provided at either or both of the start winding position or the end winding position of the linear winding portion 13a.

[0097] For example, if a pair of guide plates 16a and 16b are provided at both the start and end of the linear winding portion 13a, the wire 11 can be linearly guided to the linear winding portion 13a and reliably and neatly wound.

[0098] Furthermore, in the above-mentioned embodiment, the winding machine 10 is described in which the flange separation unit 50 is provided, and the flange separation unit 50 moves the flange 14 on one side that can be loaded and unloaded from the drum portion 13 away from or close to the drum portion 13. However, the flange separation unit 50 may not be provided, and the operator may manually move the flange 14 on one side away from or close to the drum portion 13, and take out the coil formed by the wire 11 wound on the drum portion 13 from the drum portion 13.

[0099] In the above-mentioned embodiment, the case where the winding core 12 is rotated by synchronously controlling the two winding motors 24 and 124 provided in the main support rotating unit 20 and the auxiliary support rotating unit 120, respectively, is described. However, although not shown, a winding core having flanges provided on both sides of the winding drum portion may be rotated by a single motor.

[0100] Furthermore, in the above-mentioned embodiment, a radial moving unit 40 is provided to move the guide member 16 along the rotation radial direction of the winding core 12. However, when the number of layers of the wound wire 11 is single or small, the guide member 16 is arranged close to the winding drum portion 13 of the winding core 12, and the wire 11 can be guided to the desired position of the winding portion 13, so the radial moving unit 40 may not be provided.

[0101] Although the embodiments of the present invention have been described above, the above embodiments are only a part of application examples of the present invention and do not intend to limit the technical scope of the present invention to the specific structures of the above embodiments.

[0102] This case claims the priority based on Special Application No. 2019-207760 filed with the Japan Patent Office on November 18, 2019, and all the contents of that patent application are incorporated into this specification by reference.

Claims

1. A winding machine, characterized in that: include: A winding core having a winding drum portion and flanges provided on both sides of the winding drum portion in the rotation axis direction, and winding the wire supplied from the supply source onto the rotating winding drum portion; a guide member that rotates together with the winding core to guide the wire to the winding drum; as well as an axial movement unit that moves the guide member along the rotational axis of the winding core, The guide member includes a pair of guide plates which are arranged parallel to the rotation axis of the winding core and have front end edges facing each other with a gap therebetween for allowing the wire to pass through. The flange is provided with slots for the pair of guide plates to pass through respectively. The front end edge of any one of the pair of guide plates can be in the same plane as the inner side surface of the flange, The axial movement unit is configured to move the pair of guide plates at the same speed along the rotation axis of the core while maintaining the gap between the pair of guide plates. Each time the core rotates one circle, the pair of guide plates move along the rotation axis of the core by an amount equivalent to the outer diameter of the wire.

2. The winding machine according to claim 1, wherein: The axial movement unit is configured to be able to change the gap between the pair of guide plates.

3. The winding machine according to claim 1 further comprises: The radial movement unit moves the guide member in a radial direction of the winding core.

4. The winding machine according to claim 1, wherein: A plurality of straight-line winding portions for straightening the wire wound on the winding drum portion are formed on the winding core. The guide members are respectively provided on the plurality of linear winding portions and are respectively opposite to the corresponding linear winding portions.

5. The winding machine according to claim 4, wherein: The guide member is provided at one or both of a winding start position and a winding end position of the linear winding portion.

6. The winding machine according to claim 1 further comprises: A flange contacting and disengaging unit moves the flange detachably provided on one side of the reel portion away from or close to the reel portion.

7. A wire winding method, wherein a winding core having flanges on both sides of a rotating shaft of a winding drum is rotated to wind a wire material onto the winding drum, wherein: The wire supplied from the supply source is guided to the winding drum by a pair of guide plates which are arranged parallel to the rotation axis of the winding core and have front ends facing each other with a gap therebetween for allowing the wire to pass. The flange is provided with slots for the pair of guide plates to pass through respectively. The winding method can make the front end edge of any one of the pair of guide plates and the inner side surface of the flange in the same plane and enable the pair of guide plates to rotate together with the winding core. Every time the winding core rotates one circle, the pair of guide plates are moved along the rotation axis of the winding core at the same speed as each other by an amount equivalent to the outer diameter of the wire while maintaining the gap between the pair of guide plates, and the wire guided by the pair of guide plates is wound onto the winding drum.

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