JPH11251170A - Wire winding device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely wind even a wire of a relatively large diameter on a core in close contact by holding a wire forced downward by a forcing rod of a forcing device of a wire and rotating the wire from below a core to a position across above a core. SOLUTION: A wire W across above a core C is forced downward to a V-shape through a central hole c0 of the core C by a forcing rod 20 of a wire forcing device. Then, a drawing hook part 30 of a wire drawing device is proceeded to enter a lower end of the V-shaped wire W and to hook the wire W, and the wire W is drawn below the core C until the wire W is almost linear. Then, almost a central part of the wire W which is drawn downward is held by a clamp click of a clamp device and a wire rotation device is rotated about 270 deg. to a position across above the core C. Thereby, the wire W is wound one turn on a ring part of the core C.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a wire winding device (toroidal winding device) for spirally winding a wire around a core of an electromagnetic coil or the like.

[0002]

2. Description of the Related Art Conventionally, as this kind of wire winding device, there is a so-called shuttle type wire winding device as shown in FIGS. 14 and 15, for example (Japanese Patent Laid-Open No. 1-272).
No. 105).

Referring to FIGS. 14 and 15, the wire winding device includes a rotatable coil storage ring a and a winding ring b provided on one side of the storage ring a. A circumferential groove a1 having a U-shaped cross section is formed in the former coil storage ring a, and a guide hole d1 is formed in the latter coil ring b.
And a guide roller d 'having the same. Further, a gear e is integrally provided on the outer periphery of the side surface of the coil storage ring a. An opening (not shown) for inserting the core f is provided in a part of the coil storage ring a.
Is provided.

In this wire winding device, a wire g is wound in advance in a circumferential groove a1 of a coil storage ring a, and a core f is inserted through the opening of the coil storage ring a. Next, after the tip of the wire g is wound around the core f, the coil storage ring a rotates with the rotation of the gear e, and the core f slowly rotates around the virtual axis. Thus, the wire g is spirally wound around the core f.

[0005]

The conventional wire winding device as described above has the following problems. That is, in this wire winding device, as shown in FIG. 15, the axis O of the coil storage ring a and the axis O ′ of the core f are separated by a distance L.
Since the wire g is only eccentric, the operation of pulling or loosening the wire g during winding is alternately repeated. For this reason, the winding of the core f is disturbed, and it is difficult to tightly wind the core f in close contact with the core f, particularly for a relatively thick wire (for example, a copper wire having a diameter of 2.3 mm or more) g. It is difficult to improve the quality of the wire.

The present invention has been made in view of the above points, and provides a wire winding device capable of securely winding a wire having a relatively large diameter in close contact with a core. With the goal.

[0007]

A first means is a wire winding device for winding a wire around a core having a center hole, wherein the core holds the core substantially horizontally and rotates the core on a substantially horizontal plane. A wire pushing device having a rotating device, a pushing rod disposed above a core held by the core rotating device, and pushing a wire traversing the core downward through a center hole of the core; and a wire pushing device. And a wire turning device for holding the wire pushed downward by the push rod and turning the wire from below the core to a position crossing over the core.

According to the first means, the wire traversing the core is pushed downward through the center hole of the core by the pushing rod of the wire pushing device, and the wire pushed downward is gripped by the wire turning device. Then, the wire is wound around the core by pivoting to a position crossing over the core. Then, by repeating such a winding operation while rotating the core by a core rotating device, the wire is spirally wound around the core. In this case, the pushing rod of the wire pushing device pushes the wire crossing over the core downward through the center hole of the core, so that the wire can be reliably bent along the center hole side of the core.

A second means is the first means, further comprising a wire pulling device disposed below the core held by the core rotating device, wherein the wire pulling device is a push rod of the wire pushing device. Has a drawer hook portion for hooking the lower end of the wire pushed downward in a V-shape to draw the wire below the core.

The third means is the first or second means, wherein the core rotating device has a pair of holding portions for holding the core releasably from above and below, and a gear device for rotating the core. This gear device rotates in a fixed direction while being pressed against the core while the pair of gripping portions release the core, and while the pair of gripping portions grips the core. And a feed gear that rotates in the opposite direction while being slidable with respect to the core.

[0011]

Next, an embodiment of the present invention will be described with reference to the drawings. 1 to 13 are views showing an embodiment of a wire winding device according to the present invention.

1 to 3, a wire winding device includes a first unit 1 arranged substantially vertically and a second unit 4 arranged substantially horizontally crossing the first unit 1.
It is composed of The first unit 1 includes a wire pushing device 2 and a wire pulling device 3 and is supported by a pair of vertical frames 10 as a whole. Further, the second unit 4 includes a core rotating device 6, a wire turning device 5, and a second unit reversing device 8, which are arranged on substantially the same axis.

FIG. 4 shows an example of a core in which a wire (for example, a copper wire) is wound by the wire winding device. In FIG. 4, the core C has a ring portion c1 having a center hole c0, and three plate portions c2 arranged at equal intervals in the circumferential direction with respect to the ring portion c1. The wire W is spirally wound around the ring portion c1 of the core C.

Next, the wire pushing device 2 will be described with reference to FIGS. 1 to 3, 8 and 9. FIG. As shown in FIGS. 1 and 2, a wire pushing device 2 constituting an upper portion of the first unit 1 includes a pushing bar 20 slidably held in a sheath 22 in a vertical direction, and a pushing bar 2.
And a cylinder 24 (see FIG. 1) for driving the cylinder 0 in the vertical direction. 1 and FIG.
Is a cylinder portion for adjusting the position of the push rod 20 in the front-rear direction.

The pushing rod 20 of the wire pushing device 2
1 is disposed above the core C held by the core C rotating device 6 as shown in FIG. 1, and a wire W crossing over the core C is moved to the center of the core C as shown in FIGS. Hole c
This is for pushing in a V shape downward through 0.
For this reason, a U-shaped groove 20 a for receiving the wire W is formed at the tip of the push rod 20.

Next, the wire drawing device 3 will be described with reference to FIGS. 1, 2, 10 and 11. FIG.
As shown in (1), the wire drawing device 3 constituting the lower part of the first unit 1 is disposed below the core C held by the core rotating device 6. As shown in FIGS. 1 and 2, the wire drawing device 3 includes a pair of bar-shaped vertical frames 38 and a drawing slider 36 slidably mounted along the pair of bar-shaped vertical frames 38. I have. On the upper part of the drawer slider 36, a support plate 35 for supporting the drawer hook 30 at the upper end is provided.
A cylinder 37 (see FIG. 1) for moving the cylinder 5 in the front-rear direction is provided.

Here, the drawer hook 30 is connected to the
As shown in FIG. 11, the lower end of the wire W pushed downward in a V-shape by the pushing rod 20 of the wire pushing device 2 is hooked, and the wire W is pulled out below the core C. .

For this reason, the pull-out hook portion 30 is composed of a substantially conical tip portion 34 for facilitating entry into the lower end of the wire W pushed in a V-shape, and a cylindrical hook portion 32 connected thereto. Have. The drawer hook 30
Is rotatably attached to the support plate 35 in consideration of the smoothness of the wire W pull-out operation as shown in FIG.

Next, the wire turning device 5 will be described with reference to FIGS. 2, 5, 6, 12, and 13. FIG.
In FIG. 5, in the second unit 4, the wire turning device 5 includes the core rotating device 6 and the second unit reversing device 8.
It is arranged between and.

As shown in FIG. 5, the wire turning device 5 includes a clamp claw 52 for holding a substantially central portion W1 of the wire W.
Clamping device 50 (see FIGS. 12 and 13)
A turning member 55 that supports the clamp device 50;
It has a motor 57 and a wrapping transmission 59 for rotating the turning member 55 around the axis of the second unit 4.

Here, as shown in FIG. 12 and FIG. 13, the wire turning device 5
Of the wire W is pivoted from below the core C (FIG. 12) to a position crossing the core C (FIG. 13). I have. For this reason, as shown in FIG. 2, the turning member 55 of the wire turning device 5 is configured to turn around the axis of the second unit 4 in a range from vertically downward to a horizontal position of about 270 degrees. I have.

Next, the core rotating device 6 will be described with reference to FIGS. This core rotating device 6
As shown in FIG. 1, between the wire pushing device 2 and the wire pulling device 3, the core C is held horizontally and the core C rotates on a horizontal plane.

As shown in FIGS. 5 and 6, the core rotating device 6 has a movable plate 60 and a fixed plate 61 which are arranged in parallel with a space therebetween in the vertical direction. Of these, the movable plate 60 can be separated and connected to the fixed plate 61 in parallel by rotating a pair of left and right pinions 65 attached to the shaft 63 by the action of the cylinder 67.

The core rotating device 6 has gear devices 70 to 78 for rotating the core C on its own axis. Specifically, the movable plate 60 and the fixed plate 61 are respectively provided with a feed gear 70 and transmission gears 72 and 75 that mesh with each other. Among them, fixed plate 61
A crown gear 74 is fastened to the transmission gear 75 on the side, and the crown gear 74 meshes with a bevel gear 76 rotated by a motor 78. That is, the gear devices 70 to 78 are configured such that the rotation of the motor 78 is transmitted to the central feed gear 70 via the gears 72 to 76.

Here, as shown in FIG. 5, the movable plate 60 and the fixed plate 61 are respectively formed with wire passages 60a and 61a extending from the central portion and opening to one end surface. In addition, these wire passages 60a, 60
On the side of 1a, a cutout portion 70a is formed in the feed gear 70 in a range of approximately 90 degrees.

Next, as shown in FIG.
A clutch plate 71 is fastened to the inside of each feed gear 70 in the 0 and fixed plates 61, respectively. A substantially cylindrical grip portion 68 that penetrates the feed gear 70 and the clutch plate 71 is attached to each of the plates 60 and 61. A coil spring 66 for urging the clutch plate 71 inward together with the feed gear 70 is provided between each of the plates 60 and 61 and the corresponding feed gear 70.

The core rotating device 6 is configured as shown in FIG.
(A) As shown in FIG.
7 (b), the pair of gripping portions 68 grip the plate portion c2 of the core C (hereinafter, simply referred to as "core C" in FIG. 7) from above and below. ), The pair of gripping portions 68 are configured to release the core C when the movable plate 60 is separated (raised) from the fixed plate 61.

The core rotating device 6 includes a coil spring 66
By properly setting the urging force, the clutch plate 71 slides on the core C in a state (fixed state) where the pair of gripping portions 68 grip the core C as shown in FIG. 7B. As shown in FIG.
When the core 8 is releasing the core C (disengaged state), the clutch plate 71 is pressed against the core C by the urging force of the coil spring 66, and both the C and 71 rotate integrally. Have been.

The respective feed gears 70 fastened to the clutch plate 71 are in the disengaged state (FIG. 7B).
It rotates integrally with the core C (at a rotation speed corresponding to the spiral winding of the wire W) in a fixed direction, and the fixed state (FIG. 7A)
In the above, while rotating with respect to the fixed core C, it rotates in the reverse direction to the original position. Thus, the feed gear 7
By rotating the core C intermittently in a certain direction while reciprocatingly rotating (forward / reverse rotation) within a certain angle range, the wire passages 60a, 61a of the plates 60, 61 are formed.
However, it is possible to keep only the notch 70a of the feed gear 70 corresponding (see FIG. 5).

Next, the second unit reversing device 8 will be described with reference to FIGS. 5 and 6, the reversing device 8 is configured to rotate the wire turning device 5 and the core rotating device 6 constituting the second unit 4 around an axis (a horizontal axis extending in the left-right direction in FIGS. 5 and 6). Is configured to be inverted by 180 degrees. (By this reversal, for example, for the core rotating device 6, the vertical relationship between the movable plate 60 and the fixed plate 61 is reversed.) The reversing of the wire turning device 5 and the core rotating device 6 causes the core C to rotate.
Can be reversed.

Next, the operation and operation and effect of this embodiment having the above configuration will be described. First, as shown in FIG. 8, one end of a wire W is wound around a core C held and rotated by the core rotating device 6,
The wire W is made to traverse the core C. Then, from the state shown in FIG. 8, as shown in FIG. 9, the wire W crossing over the core C is moved downward through the center hole c0 of the core C by the pushing rod 20 of the wire pushing device 2.
It is pushed in the shape of a letter.

Next, in FIG. 10, the pull-out hook portion 30 of the wire pull-out device 3 moves forward with respect to the lower end of the wire W pushed downward by the push rod 20 in a V-shape, and Penetrates into the lower end of the character, and the wire W
Hook. Then, as shown in FIG. 11, the pull-out hook portion 30 descends, and the hooked wire W is pulled out below the core C until the wire W finally becomes substantially straight.

Next, as shown in FIG. 12, the substantially central portion W1 of the wire W pulled down is connected to the clamping device 5 as described above.
It is gripped by the zero clamp claw 52. And FIG.
As shown in FIG. 2 to FIG. 13, the wire turning device 5 turns the substantially central portion W1 of the wire W gripped by the clamp device 50 by approximately 270 degrees to a position where the wire W crosses over the core C again. 1 wire W for ring c1
It is wound around the circumference.

By repeating the above-described winding operation shown in FIGS. 8 to 13 while rotating the core C at a predetermined rotation speed by the core C rotating device 6, the wire W is spirally wound around the core C. It is wound around. When the winding direction of the wire W is reversed during such a winding operation, the wire turning device 5 and the core rotating device 6 are reversed by the second unit reversing device 8.

According to this embodiment, as shown in FIGS. 8 and 9, the pushing rod 20 of the wire pushing device 2 is used.
Thus, by pushing the wire W crossing over the core C downward through the center hole c0 of the core C, the wire W can be reliably bent along the center hole c0 side of the core C. For this reason, a relatively thick wire (for example,
Even a copper wire having a diameter of 2.3 mm or more) can be securely wound in close contact with the core C.

[0036]

According to the present invention, the wire traversing the core is pushed downward through the center hole of the core by the pushing rod of the wire pushing device, whereby the wire is reliably bent along the center hole side of the core. be able to. For this reason, even a wire having a relatively large diameter can be securely wound around the core in close contact with the core.

[Brief description of the drawings]

FIG. 1 is a side view showing an embodiment of a wire winding device according to the present invention.

FIG. 2 is a front view of the wire winding device shown in FIG.

FIG. 3 is a plan view of the wire winding device shown in FIG. 1;

FIG. 4A is a plan view of a core, and FIG. 4B is a side view of the core.

FIG. 5 is a (partially broken) plan view of a second unit of the wire winding device shown in FIG. 1;

FIG. 6 is a (partially broken) side view of the second unit shown in FIG. 5;

FIGS. 7A and 7B are longitudinal sectional views showing a main part of the core rotating device shown in FIG. 6, wherein FIG. 7A shows a fixed state of the core, and FIG. 7B shows a released state of the core;

FIG. 8A is a front view showing a relationship between a wire crossing over the core and a push rod in relation to a longitudinal sectional view of the core,
(B) is a side view similarly.

FIG. 9A is a front view showing pushing of a wire by a pushing rod in relation to a longitudinal sectional view of a core, and FIG. 9B is a side view of the same.

10A is a front view showing hooking of a wire by a drawer hook in relation to a longitudinal sectional view of a core, and FIG.
Is a side view of the same.

FIG. 11 (a) is a front view showing withdrawal of a wire by a drawer hook in relation to a longitudinal sectional view of a core, and FIG. 11 (b).
Is a side view of the same.

FIG. 12A is a front view showing a state in which the wire turning device starts gripping and turning the wire in relation to a longitudinal sectional view of the core, and FIG. 12B is a side view of the same.

FIG. 13 (a) is a front view showing the completion of the turning of the wire by the wire turning device in relation to the longitudinal sectional view of the core,
(B) is a side view similarly.

FIG. 14 is a perspective view showing a conventional wire winding device.

FIG. 15 is a schematic side view showing the wire winding state of the wire winding device shown in FIG. 14;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 1st unit 2 Wire pushing device 20 Push rod 3 Wire pullout device 30 Pulling hook 4 2nd unit 5 Wire turning device 50 Clamp device 52 Clamp claw 6 Core rotating device 68 Grasping part 70,72,74,75,76,78 Gear device 70 Feed gear 8 Second unit reversing device C Core W Wire W1 Wire end side

Claims (3)

[Claims] 1. A wire winding device for winding a wire around a core having a center hole, wherein the core rotating device holds the core substantially horizontally and rotates the core on a substantially horizontal plane. Placed above the core to be
A wire pushing device having a pushing rod for pushing a wire traversing over the core downward through a center hole of the core, a wire pushed down by the pushing rod of the wire pushing device, and the wire is gripped by the core. A wire turning device for turning from below to a position crossing over the core. 2. The apparatus according to claim 1, further comprising a wire pulling device disposed below the core held by the core rotating device, wherein the wire pulling device is pushed downward in a V-shape by a push rod of the wire pushing device. 2. The wire wrapping device according to claim 1, further comprising a drawer hook for hooking a lower end of the wire and drawing the wire below the core. 3. The core rotating device includes a pair of gripping portions for gripping the core releasably from above and below, and a gear device for rotating the core, wherein the pair of gripping portions hold the core. While being released, while rotating in a fixed direction while being pressed against the core, while the pair of gripping portions are gripping the core, it is slidable with respect to the core. The wire winding device according to claim 1, further comprising a feed gear that rotates in a reverse direction.