JP2020014287A - Winding device - Google Patents

Abstract

To provide a winding device capable of forming a coil with high dimensional accuracy by suppressing bending of a core member when winding the coil.SOLUTION: The winding device for winding a wire constituting a coil, includes: a plurality of core members 13 extending parallel to each other at intervals and around which a wire is wound; a core member contact and separation mechanism for contacting and separating the plurality of core members; an interval regulating member sandwiched between the plurality of core members and defining an interval between the plurality of core members; and a driving member for driving the interval regulating member to rotate about the axis. The interval regulating member has a large diameter portion 23 in which a diameter of a portion in contact with the plurality of core members is a first diameter and a small diameter portion 24 having a second diameter D2 smaller than the first diameter, at positions different from each other in a circumferential direction around the axis.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a winding device.

  Conventionally, a coreless motor without a core has been known. For such a coreless motor, a cylindrical coil is used. For example, Patent Document 1 discloses a winding device of a coreless motor. In this winding device, a winding is wound around two core members (mandrels) arranged at an interval to form a coil. By bringing the two core members closer to each other after the coil is formed, the coil can be easily pulled out from the core member.

JP-A-2002-223549

  In the above winding device, in order to form a small-diameter coil, it is necessary to make the two core members thin. Then, when the coil is wound around the core member, the core member may bend inward, and the distance between the two core members may be reduced on the distal end side of the core member. As a result, the diameter of the other end side becomes smaller than the one end side of the coil.

  In view of the above circumstances, an object of the present invention is to provide a winding device capable of suppressing bending of a core member when winding a coil and forming a coil with high dimensional accuracy.

  One aspect of the winding device of the present invention is a winding device that winds a wire constituting a coil, extends in parallel with an interval therebetween, a plurality of core members around which the wire is wound, and a plurality of core members. A core member contacting / separating mechanism for bringing the core members into and out of contact with each other, an interval regulating member sandwiched between a plurality of the core members, and defining an interval between the plurality of core members, and moving the interval regulating member around an axis. A driving member that is driven to rotate, wherein the interval regulating member has a diameter dimension of a portion that contacts a plurality of the core members, a large diameter portion that is a first diameter dimension, and a diameter greater than the first diameter dimension. A small diameter portion having a small second diameter at different positions in a circumferential direction around the axis.

  According to one aspect of the present invention, there is provided a winding device capable of suppressing bending of a core member when winding a coil and forming the coil with high dimensional accuracy.

FIG. 1 is a perspective view illustrating a configuration of a winding device according to an embodiment. FIG. 2 is a side view of the winding device according to the embodiment. FIG. 3 is a cross-sectional view of the winding core of the winding device according to the embodiment as viewed from the axial direction. FIG. 4 is a cross-sectional view showing a state in which a small-diameter portion of the gap regulating member is sandwiched between a plurality of core members in the winding core portion of the winding device according to the embodiment. FIG. 5 is a perspective view showing a flyer unit provided in the winding device of one embodiment. FIG. 6 is a perspective view showing a tape attaching portion provided in the winding device according to the embodiment.

  FIG. 1 is a perspective view illustrating a configuration of a winding device according to an embodiment. FIG. 2 is a side view of the winding device according to the embodiment. FIG. 3 is a cross-sectional view of the winding core of the winding device according to the embodiment as viewed from the axial direction. FIG. 4 is a cross-sectional view showing a state in which a small-diameter portion of the gap regulating member is sandwiched between a plurality of core members in the winding core portion of the winding device according to the embodiment. FIG. 5 is a perspective view showing a flyer unit provided in the winding device of one embodiment. FIG. 6 is a perspective view showing a tape attaching portion provided in the winding device according to the embodiment.

  The winding device 1 of the present embodiment shown in FIGS. 1 and 2 winds a wire to form a coil of a coreless motor. The winding device 1 includes a core part 10, a flyer part 3 shown in FIG. 5, and a tape attaching part 5 shown in FIG.

The core 10 includes a core 11 and an interval regulating member 20.
The wire core is wound around the core 11. The core 11 includes a pair of core members 12 and 13. The core members 12 and 13 are provided on the support member 14. The support member 14 is provided on a base (not shown) of the winding device 1.

  The core members 12 and 13 are vertically arranged with an axis C perpendicular to the surface 14 a of the support member 14 interposed therebetween. The core member 12 located above has a base end 12a fixed to the surface 14a of the support member 14, and extends parallel to the axis C from the base end 12a toward the front end 12b.

  The core member 13 located below is provided on the support member 14 via a core member contact / separation mechanism 15 described below. The lower core member 13 can be moved toward and away from the upper core member 12 by the core member contact / separation mechanism 15.

The core member contact / separation mechanism 15 includes a core member holding portion 16 and a biasing member 17.
The core member holding portion 16 is provided movably along a guide rail 18 provided on the support member 14. The guide rail 18 extends vertically. Thereby, the core member holding portion 16 can be moved in the vertical direction.

  The core member 13 has a base end portion 13a fixed to an intermediate block 16c provided in the core member holding portion 16, and extends from the base end portion 13a toward the distal end portion 12b in parallel with the axis C. The core member 13 can move relative to the upper core member 12 in the vertical direction crossing the axis C by moving in the vertical direction together with the core member holding portion 16.

  The biasing member 17 is formed of a coil spring or the like. The urging member 17 extends in the up-down direction, and its lower end 17 a is locked by a bracket 16 b provided on the core member holding portion 16. The upper end 17 b of the urging member 17 is locked by a boss 19 provided on the support member 14. The urging member 17 urges the core member holding portion 16 that holds the lower core member 13 upward. Thereby, the core members 12 and 13 are urged by the urging member 17 in a direction in which both approach each other.

As shown in FIG. 3, the core member 12 located above includes a pair of inclined surfaces 12 s, 12 s that spread in an inverted V shape downward from the upper end, and a pair of inclined surfaces 12 s, 12 s that extend downward from the lower ends of the inclined surfaces 12 s. And a pair of side surfaces 12t, 12t extending in parallel.
The core member 13 located below includes a pair of inclined surfaces 13s, 13s extending upward from the lower end in a V-shape, and a pair of side surfaces 13t extending upward from the upper ends of the inclined surfaces 13s, 13s in parallel with each other. 13t.

  In the winding core 11, such a core member 12 and a core member 13 are arranged at an interval in the vertical direction. Thereby, in the winding core 11, the cross-sectional shape of the outer portion around which the wire 100 is wound is substantially hexagonal. Here, the substantially hexagonal shape means a tortoiseshell shape in which two opposing short sides of the hexagon are shorter than the other sides.

  The space regulating member 20 is sandwiched between the core members 12 and 13 and defines the space between the core members 12 and 13. The space regulating member 20 extends in the direction of the axis C between the upper core member 12 and the lower core member 13. The space regulating member 20 is arranged so as to be sandwiched between at least the distal end portion 12b of the core member 12 and the core member 13b. In the present embodiment, the interval regulating member 20 is provided over the entirety of the core members 12 and 13, and the tip is exposed from the core members 12 and 13.

The outer peripheral surface of the interval regulating member 20 includes a first outer peripheral surface 20a, a second outer peripheral surface 20b, and a connection curved surface portion 20c.
The first outer peripheral surface 20 a is provided on a part of the outer peripheral surface of the gap regulating member 20 in the circumferential direction around the axis C. In the present embodiment, the first outer peripheral surface 20a is provided in a range of θ = 180 ° or more around the axis C. The first outer peripheral surface 20a is configured around the axis C with a first radius of curvature r1. Thereby, the first outer peripheral surface 20a is provided at a position of the radius r1 from the axis C.

  The second outer peripheral surface 20 b is provided on a part of the outer peripheral surface of the gap regulating member 20 in the circumferential direction around the axis C. The second outer peripheral surface 20 b is provided only at one location in the circumferential direction of the outer peripheral surface of the gap regulating member 20. In the present embodiment, the second outer peripheral surface 20b is provided in a region opposed to the center in the circumferential direction of the first outer peripheral surface 20a with the axis C interposed therebetween. The second outer peripheral surface 20b is provided radially inward of the first outer peripheral surface 20a about the axis C. The second outer peripheral surface 20b is a curved surface having a second radius of curvature r2. Here, the second radius of curvature r2 of the second outer peripheral surface 20b is, for example, smaller than the first radius of curvature r1 of the first outer peripheral surface 20a around the axis C. That is, the second outer peripheral surface 20b is provided at a position of the radius r2 from the center of the axis C.

  The connection curved surface portion 20c is provided between both circumferential ends of the first outer circumferential surface 20a and both circumferential ends of the second outer circumferential surface 20b. That is, the connection curved surface portion 20c connects the first outer peripheral surface 20a and the second outer peripheral surface 20b in the circumferential direction. The connection curved surface portion 20c is configured by a curved surface having a predetermined radius of curvature.

  In the state where the first outer peripheral surface 20a is in contact with both the upper core member 12 and the lower core member 13, the distance regulating member 20 has a diameter dimension of a portion that comes into contact with the core members 12, 13. , The first diameter D1 (D1 = 2 × r1).

  By the way, the core member 12 located above the gap regulating member 20 is provided with an inner peripheral curved surface portion 12f which is depressed upward at a lower end portion facing the gap regulating member 20. The outer peripheral surface of the gap regulating member 20 is in sliding contact with the inner peripheral curved surface portion 12f. The inner peripheral curved surface portion 12f is provided in the shape of a curved surface having the same first curvature radius r1 as the first outer peripheral surface 20a of the gap regulating member 20.

  The core member 13 located below the space regulating member 20 has an inner peripheral curved surface portion 13f that is depressed downward at an upper end portion facing the space regulating member 20. The outer peripheral surface of the gap regulating member 20 is in sliding contact with the inner peripheral curved surface portion 13f. The inner peripheral curved surface portion 13f is provided in a curved surface having the same first radius of curvature r1 as the first outer peripheral surface 20a of the gap regulating member 20.

As shown in FIG. 4, in the gap regulating member 20, for example, in a state where the first outer peripheral surface 20 a contacts the upper core member 12 and the second outer peripheral surface 20 b contacts the lower core member 12, the second outer peripheral surface Since 20b is located radially inward of the first outer peripheral surface 20a, the diameter of the portion in contact with the core members 12, 13 is a second diameter D2 smaller than the first diameter D1 (D2 = R1 + r2).
In other words, the interval regulating member 20 has a large diameter portion 23 in which the diameter of the portion in contact with the core members 12 and 13 is the first diameter D1, and a second diameter that is smaller than the first diameter D1. The small diameter portion 24, which is D2, is provided at different positions in the circumferential direction around the axis.

  As shown in FIGS. 1 and 2, the gap regulating member 20 is driven to rotate about the axis C by the driving member 21. The drive member 21 includes a motor or the like, and is provided on the back surface 14 b of the support member 14. The space regulating member 20 penetrates the support member 14 and is connected to a drive shaft (not shown) of the drive member 21.

  When the gap regulating member 20 is rotated around the axis C by the driving member 21, as shown in FIG. 3, when the large-diameter portion 23 of the gap regulating member 20 is sandwiched between the upper and lower core members 12 and 13, The interval between the members 12 and 13 is maximum. As shown in FIG. 4, when the small diameter portion 24 of the space regulating member 20 is sandwiched between the upper and lower core members 12 and 13, the large diameter portion 23 is sandwiched between the core members 12 and 13. Sometimes smaller when compared. In other words, the upper and lower core members 12 and 13 are vertically moved toward and away from each other by rotating the distance regulating member 20 about the axis C by the driving member 21.

As shown in FIG. 5, the flyer unit 3 winds the wire 100 around the core 11. The flyer unit 3 is arranged to face the core 11 in the direction of the axis C.
The flyer unit 3 includes a flyer 31, a flyer driving unit 32, and a flyer moving device 33.

The flyer 31 is arranged to face the core 11 of the core 10 at an interval in the direction of the axis C. The flyer 31 includes an arm 35 extending in the direction of the axis C, a nozzle 36 provided on the arm 35, and a pulley 37 connected to the arm 35.
The nozzle 36 is provided at the tip of the arm 35 and feeds out a wire 100 supplied from a wire supply unit (not shown). The wire 100 is guided to the nozzle 36 via a hole (not shown) provided in the arm 35. The wire 100 of the present embodiment is formed of a conductor in which an insulating layer and a heat-sealing layer are coated on the outer periphery of a linear conductor.

  The flyer drive unit 32 includes a motor 34 composed of, for example, a servomotor. A belt 38 is wound between the motor 34 and a pulley 37 connected to the arm 35. The flyer drive unit 32 drives the motor 34 to rotate the pulley 37 via the belt 38, thereby rotating the arm unit 35 of the flyer 31.

  The flyer moving device 33 supports the flyer 31 and the flyer drive unit 32, and moves them along the axis C direction.

  In order to wind the wire 100 around the winding core 11 with the flyer 31, the flyer unit 3 moves the flyer 31 in the direction of the axis C by the flyer moving device 33 while rotating the arm unit 35 by the flyer driving unit 32. Thus, the wire 100 is wound around the core members 12 and 13 constituting the core 11 to form a coil.

As shown in FIG. 6, the winding device 1 is provided with a tape sticking section 5. The tape attaching section 5 attaches the tape 101 to the wire 100 wound around the core 11.
The tape sticking section 5 includes a pair of holding members 51A and 51B arranged on both sides of the core 11. The pair of holding members 51A and 51B are provided so as to face the side surfaces 12t and 13t of the core members 12 and 13 that constitute the core 11.
The tape 101 pulled out from a reel unit (not shown) is supplied to the holding members 51A and 51B. The tape 101 is cut at a predetermined length by a cutter unit (not shown). The cut tape 101 is sucked and held by the holding members 51A and 51B.

The pair of sandwiching members 51A and 51B are driven by the driving devices 52A and 52B so as to come into contact with and separate from each other. When the holding members 51A and 51B are brought closer to each other by the driving devices 52A and 52B, the tape 101 sucked and held by the holding members 51A and 51B is attached to the wire 100 wound around the core 11.
When the holding members 51A and 51B are separated from each other by the driving devices 52A and 52B, the holding members 51A and 51B are separated from the core 11, and the tape 101 remains attached to the wire 100 wound around the core 11. .

  In addition, the tape attaching section 5 includes a moving mechanism (not shown) that moves the holding members 51A and 51B in the direction of the axis C. Thus, after the tape 101 is attached, the holding member 51A, 51B is held along the axis C by the moving mechanism (not shown) in a state where the wire 100 wound around the core 11 is held between the holding members 51A, 51B. When the wire 100 is separated from the core 11, the wire 100 is removed from the core 11. That is, the tape attaching section 5 functions as a device for removing the wire 100 from the core 11.

  Further, the holding members 51A and 51B of the tape affixing portion 5 are formed so that the wire 100 wound around the core 11 is sandwiched and crushed.

  In the winding device 1 as described above, the wire 100 is wound around the core 11 by the flyer 31 of the flyer unit 3. At this time, as shown in FIG. 3, the gap regulating member 20 is configured such that the large-diameter portion 23 is sandwiched between the upper and lower core members 12 and 13. In this state, the flyer 31 is moved in the direction of the axis C by the flyer moving device 33 while the arm unit 35 is rotated by the flyer drive unit 32. As a result, the wire 100 is wound around the core members 12 and 13 constituting the core 11, and the coil is formed. At this time, since the large-diameter portion 23 of the space regulating member 20 is sandwiched between the upper and lower core members 12 and 13, the core members 12 and 13 may bend when the wire 100 is wound. Can be suppressed.

  After the winding of the wire 100 is completed, the tape 101 is attached to the wire 100 wound around the core 11. For this, the tape 101 pulled out from the reel unit (not shown) is supplied to the holding members 51A and 51B of the tape attaching unit 5, respectively. The supplied tape 101 is cut into a predetermined length by a cutter unit (not shown), and is suction-held by the holding members 51A and 51B.

Thereafter, the pair of holding members 51A and 51B are driven by the driving devices 52A and 52B so as to approach each other. Thereby, the tape 101 sucked and held by the sandwiching members 51A and 51B is attached to the wire 100 wound around the core 11.
The holding members 51A and 51B of the tape sticking portion 5 are formed so that the wire 100 wound around the core 11 is sandwiched and crushed.

  Next, as shown in FIG. 4, the gap regulating member 20 is rotated around the axis C by the driving member 21 so that the small diameter portion 24 of the gap regulating member 20 is sandwiched between the upper and lower core members 12 and 13. Since the lower core member 13 is urged upward by the urging member 17, the lower core member 13 moves upward with the rotation of the gap regulating member 20, and the gap with the upper core member 12 is reduced.

  Thereafter, with the wire rod 100 wound around the core 11 held between the holding members 51A and 51B, the holding members 51A and 51B are separated from the core 11 along the axis C by a moving mechanism (not shown). . Thereby, the wire 100 is removed from the core 11. At this time, since the small-diameter portion 24 of the gap regulating member 20 is sandwiched between the core members 12 and 13, the interval between the core members 12 and 13 is smaller than when the large-diameter portion 23 is sandwiched. Therefore, the wire 100 can be easily removed from the core 11.

After the wire 100 is removed from the core 11, the holding members 51A and 51B are separated from each other by the driving devices 52A and 52B. Then, the holding members 51 </ b> A and 51 </ b> B separate from the core 11, and the tape 101 remains attached to the wire 100 wound around the core 11.
Thereby, a coil around which the wire 100 is wound is manufactured.

  According to the present embodiment, the core members 12 and 13 can be prevented from bending when the wire 100 is wound by sandwiching the gap regulating member 20 between the core members 12 and 13. Accordingly, since the bending of the core members 12 and 13 when the coil is wound is suppressed, the coil can be formed with high dimensional accuracy.

  Further, the interval between the core members 12 and 13 with the interval regulating member 20 interposed therebetween changes when the large diameter portion 23 of the interval regulating member 20 is in contact and when the small diameter portion 24 is in contact therewith. Thereby, the space | interval of the core members 12 and 13 can be changed by rotating the space | interval regulation member 20 pinched between the core members 12 and 13 around the axis C. After winding the wire 100 around the core members 12 and 13 with the large-diameter portion 23 of the gap regulating member 20 sandwiched therebetween, when the gap regulating member 20 is rotated to sandwich the small-diameter portion 24 between the core members 12 and 13, The distance between the core members 12 and 13 is reduced. Thereby, the coil wound around the core members 12 and 13 can be easily pulled out.

  According to the winding device 1 of the present embodiment, the outer peripheral surface of the interval regulating member 20 includes the first outer peripheral surface 20a and the second outer peripheral surface 20b provided radially inward of the first outer peripheral surface 20a. Have. Therefore, in a state where the first outer peripheral surface 20a is in contact with both the core members 12 and 13, the interval between the core members 12 and 13 is wide, and when the second outer peripheral surface 20b contacts at least one of the core members 12 and 13. The distance between the core members 12 and 13 is reduced. Therefore, by rotating the space regulating member 20 around the axis C, the space between the core members 12 and 13 can be changed.

  According to the winding device 1 of the present embodiment, the second outer peripheral surface 20b is provided only at one position in the circumferential direction of the outer peripheral surface of the gap regulating member 20. When the second outer peripheral surface 20b is provided only at one position in the circumferential direction, when the first outer peripheral surface 20a contacts the core member 12 and the second outer peripheral surface 20b contacts the core member 13, the core members 12, 13 The interval is reduced. Since the second outer peripheral surface 20b only needs to be provided at one location in the circumferential direction, the manufacture of the interval regulating member 20 is easy.

  According to the present embodiment, since the second outer peripheral surface 20b is formed of a curved surface, the contact load between the core members 12 and 13 can be reduced, and the contact portions between the gap regulating member 20 and the core members 12 and 13 are worn. Can be suppressed.

  According to the present embodiment, the connecting portion between the first outer peripheral surface 20a and the second outer peripheral surface 20b is constituted by the connection curved surface portion 20c, so that when the interval regulating member 20 rotates, the first Wear of the core members 12 and 13 at the connection between the outer peripheral surface 20a and the second outer peripheral surface 20b can be suppressed.

  According to the present embodiment, by providing the inner peripheral curved surface portions 12f and 13f on the core members 12 and 13 side, it is possible to suppress abrasion of the contact portions between the gap regulating member 20 and the core members 12 and 13.

  According to this embodiment, the core member 13 supports the core member 13 movably relative to the core member 12 in a direction intersecting the axis, and the direction in which the core member 12 and the core member 13 approach each other. And an urging member 17 for urging the member. Accordingly, when the interval between the core members 12 and 13 changes with the rotation of the interval regulating member 20, the urging member 17 causes the interval regulating member 20 in which the core members 12 and 13 are provided radially inward. Contact securely. According to such a configuration, it is not necessary to use, for example, an actuator or the like for bringing the core members 12 and 13 into and out of contact with each other, so that cost reduction can be achieved.

  As mentioned above, although one Embodiment of this invention was described, each structure in embodiment, their combination, etc. are an example, and addition, abbreviation, substitution, and other addition of a structure are within the range which does not deviate from the meaning of this invention. Changes are possible. The present invention is not limited by the embodiments.

  For example, in the above-described embodiment, the winding core 11 includes the pair of core members 12 and 13, but may include three or more core members. Even in such a configuration, by providing the space regulating member 20 between three or more core members, the same operation and effect as in the above embodiment can be obtained.

  Further, although the second outer peripheral surface 20b of the gap regulating member 20 and the connecting portion between the first outer peripheral surface 20a and the second outer peripheral surface 20b are configured by curved surfaces, they may be configured by flat surfaces.

  DESCRIPTION OF SYMBOLS 1 ... Winding apparatus, 12 ... Core member, 12f ... Inner curved surface part, 13 ... Core member, 13f ... Inner curved surface part, 15 ... Core member contact / separation mechanism, 16 ... Core member holding part, 17 ... Urging member , 20 ... interval regulating member, 20a ... first outer peripheral surface, 20b ... second outer peripheral surface, 20c ... connection curved surface portion, 21 ... drive member, 23 ... large diameter portion, 24 ... small diameter portion, 100 ... wire rod, D1 ... One diameter dimension, D2 ... second diameter dimension, r1 ... first radius of curvature, r2 ... second radius of curvature.

Claims (7)

A winding device for winding a wire constituting a coil,
A plurality of core members extending parallel to each other with an interval therebetween and around which the wire is wound;
A core member contacting / separating mechanism for contacting / separating the plurality of core members,
An interval regulating member sandwiched between the plurality of core members, and defining an interval between the plurality of core members,
A driving member for driving the interval regulating member to rotate about an axis,
The interval regulating member has a plurality of the core members in contact with the core member, a large diameter portion having a first diameter, and a small diameter portion having a second diameter smaller than the first diameter. And at different positions in the circumferential direction around the axis. The outer peripheral surface of the interval regulating member,
A first outer peripheral surface configured with a first radius of curvature around the axis,
The winding device according to claim 1, further comprising: a second outer peripheral surface provided in a part of a circumferential direction around the axis, and provided radially inward of the first outer peripheral surface. The winding device according to claim 2, wherein the second outer peripheral surface is provided only at one position in the circumferential direction of the outer peripheral surface of the gap regulating member. The winding device according to claim 2, wherein the second outer peripheral surface is formed of a curved surface having a second radius of curvature. The outer peripheral surface of the interval regulating member,
The winding device according to any one of claims 2 to 4, further comprising a connection curved portion that connects the first outer peripheral surface and the second outer peripheral surface in the circumferential direction. The winding according to any one of claims 1 to 5, wherein the core member has an inner peripheral curved surface portion having the first radius of curvature, which is slidably in contact with an outer peripheral surface of the gap regulating member on a radially inner side. apparatus. The core member contact / separation mechanism,
A core member holding unit that supports a part of the core members of the plurality of core members with respect to the other core members so as to be relatively movable in a direction intersecting the axis.
The winding device according to any one of claims 1 to 6, further comprising: an urging member that urges some of the core members and another of the core members in a direction approaching each other.

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