JP2000173847A - Coil winding die - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a coil winding die which is capable of simplifying operations and shortening work hours dispensing with operations which require many man-hours to form coils used for electric products and coping with the formation of coils of various inner diameters. SOLUTION: A coil former device is equipped with first links 2, 2,... which are arranged in a radial manner making their one ends be rotatably supported at a center shaft 1 in a freely swingable manner and second links 7, 7,... which are arranged in a radial manner making their one ends be rotatably supported at a slide ring 6 which is fitted in the center shaft 1 in a freely slidable manner, where winding barrels 4, 4,... possessed of surfaces that serve as a coil winding die are supported by the other ends of the first links 2, 2,... and the second links 7, 7,.... The slide ring 6 is made to slide so as to adjust the lengths between the center shaft 1 and the winding barrels 4, 4,... at the same time.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coil winding device for winding a conductor to form a coil used in electric appliances such as electric furnaces and transformers.

[0002]

2. Description of the Related Art A coil used for an electric product such as an electric furnace or a transformer is an outer periphery of a coil winding device having a cylindrical winding drum or a winding drum piece supported by a plurality of support members arranged radially. It is created by winding a conductor around.

Conventionally, the following two devices have been known as coil winding devices. FIG. 3 is a radial sectional view showing the first conventional device. In the figure, reference numeral 11 denotes a cylindrical shaft, and the shaft 11 has three support members 12, 12, 12
Are fixed and arranged radially. Support member 1
An inner surface of a cylindrical winding drum 13 is fixed to the other ends of the winding drums 12, 12, and 12, and an outer diameter of the winding drum 13 is designed to be slightly smaller than an inner diameter A of a coil to be formed.

In the case of using the first conventional device configured as described above, a conductor is wound around the outer periphery of the winding drum 13 in a cylindrical shape, and A
After making a coil with a smaller inside diameter, the device is rotated in the direction opposite to the winding direction of the coil to make the inside diameter of the coil slightly larger than A. Then, a plurality of spacers 14, 14,...
3 is made equal to A, and the device is rotated in the winding direction of the coil, so that the coil is wound around the outer periphery of the winding drum 13 into which the spacers 14, 14,. create.

[0005] As described above, the coil formed by winding on the winding drum 13 is loosened once and then wound again on the winding drum 13 to form a coil having a final inner diameter. This is for removing the stress generated inside the coil by once loosening it when it is prepared, thereby preventing the secular change of the coil dimensions due to the internal stress.

FIG. 4 is an axial sectional view showing a second conventional apparatus. In the figure, reference numeral 21 denotes a shaft, and one end of the shaft 21 is provided with a flange portion 21a. One end of a rectangular parallelepiped winding drum piece 22, 22,... Is supported on the peripheral edge of the flange portion 21a by support pins 23, 23,. Swing in the radial direction about a position parallel to the shaft 21 with one end supported by the support pins 23, 23,... As a fulcrum. The outer diameter at one end of each of the winding drum pieces 22, 22,... Is equal to the inner diameter A of the coil to be formed. On a cylindrical main body 21b formed on the other end side of the shaft 21, support shafts 21c, 21c,.
The end of each support shaft 21c, 21c,.
The compression springs 24, 24,... Are inserted between the other ends of the winding cylinder pieces 22, 22,.
.. Have a force in the direction of the shaft 21. Subject 2
On the outer peripheral surface of 1b, movable pieces 25, 25,..., Each of which has a hexahedral shape whose one surface is a sloped surface and are slidable in the axial direction, are formed at regular intervals. Adjustment screw 2
6, 26,... Can be fixed at an arbitrary position. The inclined surface of each movable piece 25, 25,.
, Facing the winding drum pieces 22, 22,.
Are pressed against the slopes of hexahedral fixing pieces 27, 27,... Which are slopes.

In the case of using the second conventional device configured as described above, each of the adjusting screws 26, 26,.
The outer diameter of the other end of 2, 22,... Is adjusted to be slightly smaller than A. Are wound around the outer circumference of the winding drum pieces 22, 22,... To produce a coil having an inner diameter at one end of A and an inner diameter of the other end slightly smaller than A, and a device for removing the stress generated inside the coil. By rotating the coil in the direction opposite to the winding direction, the inner diameter of the coil is made slightly larger than the inner diameter A to be formed. Further, the winding drum piece 2 is adjusted by each adjusting screw 26, 26,.
The outer diameter of the other end of each of 2, 22,... Is adjusted to A and the device is rotated in the winding direction of the coil.
A coil having an inner diameter of A is formed by being wound around the outer circumference of 2, 22,.

[0008]

However, in the first conventional apparatus, the operation of inserting a large number of spacers 14, 14,... Between the winding drum 13 and the coil is troublesome, and requires a large number of man-hours. After coil creation is completed, insert the spacer 1 to remove the coil from the device.
4, 14, ... must be removed, and this operation also requires a large number of steps.

Further, in the second conventional apparatus, when adjusting the outer diameter of the other end of the winding drum pieces 22, 22, all the adjustment screws 26, 26,. There is a problem that requires a lot of man-hours.

In the first and second conventional devices, the inner diameter of the coil which can be produced by each device is fixed, and when producing coils having different inner diameters, a device having a corresponding outer diameter is required. There is a problem.

The present invention has been made in view of such circumstances, and includes a plurality of radially arranged first support members pivotally supported at one end on a shaft, and slidably with respect to the shaft. A plurality of second support members radially arranged with one end pivotally supported by a certain sliding member, and rotatably pivoted by the other end of the first support member and the other end of the second support member; An object of the present invention is to provide a coil winding device capable of reducing necessary man-hours and making it possible to cope with the production of various coils having different inner diameters by using a supported winding drum piece as a coil winding.

[0012]

According to a first aspect of the present invention, there is provided a coil winding device, comprising: a shaft; a plurality of first support members pivotally supported at one end on a peripheral wall of the shaft and arranged radially; A sliding member slidably fitted to the shaft, a plurality of second support members radially arranged with one end pivotally supported on the sliding member, and a coil winding portion; A winding drum member rotatably supported by the other end of the first support member and the other end of the second support member.

[0013] A coil winding device according to a second aspect of the present invention comprises: a shaft;
A plurality of pairs of first support rods pivotally supported at one end on a peripheral wall of the shaft and radially arranged in pairs in the axial direction, and a sliding ring slidably fitted on the shaft. A plurality of second support rods pivotally supported at one end on the sliding ring and arranged radially; a coil-shaped part having the other end of the first support rod and a second support rod; A plurality of winding members rotatably supported by the other end of the shaft, and a fixing member for fixing a sliding ring at an arbitrary position on a shaft, and the first support rod forming a pair is formed as a parallel link. It is characterized by becoming.

In the coil winding device according to the present invention,
By sliding the sliding member toward one end of the shaft, the plurality of radially arranged first support members and second support members are simultaneously swung up to stand, and the respective winding drum pieces are kept parallel to the shaft. , The length from the axis to each of the winding drum pieces that spread radially can be simultaneously adjusted according to the inner diameter of the coil to be created. Further, by sliding the sliding member toward the other end of the shaft, the first supporting member, the second supporting member,
In addition, the winding drum piece operates in reverse, and the formed coil can be easily taken out.

This eliminates the need for a large number of man-hours such as insertion and removal of the spacer and individual adjustment of the length from the shaft to each of the winding drum pieces, thereby simplifying the work and shortening the work time. In addition, since each winding drum piece is always parallel to the axis, it is possible to cope with the production of various coils having different inner diameters.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the drawings showing the embodiments. FIG. 1 is an axial sectional view of the coil winding device of the present invention, and FIG. 2 is a radial sectional view. In the figure, reference numeral 1 denotes a cylindrical first member 1a, and a cylindrical second member 1b having a larger diameter and a longer axial length than the first member 1a.
Are concentrically joined to each other, and the first member 1
The six grooves 1c, 1c,...
Are formed in 6 equal parts. One end of a flat rod-shaped first link 2, 2,... Is inserted into each of the grooves 1c, 1c,.
Each groove 1c, 1c is swingable by pins 3a, 3a,.
Each is pivoted near both ends.

By the other ends of the first links 2, 2,..., The six winding drum pieces 4, 4,. Parallel to the long direction,
It is supported with the bottom surface on the inside facing the central axis 1. Furthermore, the short sides of the winding drum pieces 4, 4,.
... the length is such that they do not touch each other. The outer surface of the coil form is a curved surface that draws an arc in the short side direction and is straight in the long side direction, and has an appropriate thickness in consideration of strength and the like. Grooves 4a, 4a,... That pass through the center of the inner surface and are
Are inserted into the grooves 4a, 4a,..., Two other ends of the first links 2, 2,.
are rotatably supported by second pins 3b, 3b,.

The second pins 3 in the grooves 4a, 4a,.
are formed to have the same length as the distance between the first pins 3a, 3a,... in each groove 1c, 1c,.
For this reason, the first links 2, 2,... Inserted in the same groove function as parallel links which swing while keeping parallel.

Among the two cylindrical members of the central shaft 1, the second member 1b having a small diameter and a long shaft length is provided with a screw 1d from the end to the direction of the first member 1a in the direction of about 4/5. An adjustment fixing nut 5 is screwed into the portion 1d, and an outer edge portion of the adjustment fixing nut 5 protrudes toward the first member 1a on a surface of the adjustment fixing nut 5 on the side of the first member 1a. A bent hook-shaped portion 5a is formed. Further, a sliding ring 6 slidable in the axial direction is fitted to the hook-shaped portion 5a side of the adjustment fixing nut 5 in the second member 1b, and the sliding ring 6 is opposed to the adjustment fixing nut 5 of the sliding ring 6. A hook-shaped portion 6a whose inner edge protrudes toward the adjustment fixing nut 5 and is bent toward the outer circumference is formed on the surface to be bent.
The hook-shaped portion 5a of the adjustment fixing nut 5 is engaged with the hook-shaped portion 6a so as to be rotatable in the circumferential direction.

On the outer periphery of the sliding ring 6, six grooves 6b, 6b,... Parallel to the axial length direction of the central shaft 1 are formed in six equal intervals, and each groove 6b, 6b,. Are inserted one end of each of the second links 7, 7,... Having the same size as the first links 2, 2,.
Are pivotally supported by 3c,. The other ends of the second links 7, 7, ... are respectively inserted into the grooves 4a, 4a, ... of the six winding drum pieces 4, 4, ... and the fourth pins 3d passed into the grooves 4a, 4a, ... , 3d,... Are pivotably supported.

As described above, each of the winding drum pieces 4, 4,.
Are respectively supported by two first links 2, 2,... And one second link 7, 7,... Arranged radially from the axis of the second link 7, 7,. ..., the winding drum pieces 4, 4, ... move in an arc while keeping their long sides parallel to the axial direction of the central axis 1. The first link 2,
Are the second links 7 on the second pins 3b, 3b,.
.., And the second link 7, 7,.
The range in which the sliding ring 6 is slid to be used with the d, 3d,... sides tilted toward the first links 2, 2,... is close to the first pins 3a, 3a,. , 3c,... Are the second pins 3b, 3b,.
.., d,...

With this configuration, the sliding ring 6 slides in the axial direction of the center shaft 1 by rotating the adjusting and fixing nut 5 and moving it in the thrust direction. When the adjusting ring 5 is rotated to slide the sliding ring 6 toward the first member 1a, the first link 2, 2,.
7,... Rise up by swinging in the opposite directions, and the winding drum pieces 4, 4,. When the adjustment fixing nut 5 is rotated in the opposite direction, the sliding ring 6 engaged with the adjustment fixing nut 5 slides toward the end of the second member 1b,
The first links 2, 2,..., The second links 7, 7,.

In the case of using the coil winding device configured as described above, first, the adjusting and fixing nut 5 is rotated so that the length from the axis of the central shaft 1 to the outer surface of the winding drum pieces 4, 4,. Is adjusted so that the outer diameter of the coil winding device is slightly smaller than the inner diameter A of the coil to be created. Then, a conductor is wound around the outer circumference of the winding drum pieces 4, 4,... To form a coil having an inner diameter smaller than A, and a coil winding device is wound around the coil to remove the stress generated inside the coil. By rotating the coil in the opposite direction, the inner diameter of the coil is made slightly larger than A. Further, the outer diameter of the coil winding device is adjusted to A by rotating the adjustment fixing nut 5, and the coil winding device is rotated in the winding direction of the coil, so that the coil is wound around the outer circumference of the winding drum pieces 4, 4,. To create a coil having an inner diameter of A. The produced coil can be easily taken out by rotating the adjustment fixing nut 5 to shorten the length from the central shaft 1 to the winding drum pieces 4, 4,.

When a conductor made of a material which is not easily affected by internal stress is used, or when it is not necessary to remove internal stress such as when a coil for use in which the effect of internal stress is small is required, a coil winding form is used. The outer diameter of the device may be adjusted to the inner diameter A of the coil to be created from the beginning, and a conductor may be wound around the outer circumference of the winding drum pieces 4, 4,.

In the above-described embodiment, an apparatus using a parallel link as the first support member has been described. However, the present invention is not limited to such an apparatus. For example, a winding drum member may be formed by one first support member and one second support member. Are rotatably supported, and the first support member and the second support member are disposed so as to form an equilateral trapezoid having oblique sides, and the winding drum member is maintained parallel to the axis. You may.

[0026]

As described in detail above, in the coil winding apparatus according to the present invention, a plurality of pairs of one end are pivotally supported on the center shaft so as to be swingable, and are arranged radially in pairs in the axial direction. A plurality of second links radially arranged with one end pivotally supported on a first link and a sliding ring slidably fitted on the center shaft.
And the other end of each first link and the other end of the second link support a winding drum piece having a surface serving as a coil form in parallel with the axis. By sliding to one end side, a plurality of pairs of first links and a plurality of pairs of second links arranged radially swing at the same time and rise up, and all the winding pieces are simultaneously held in a state of being kept parallel to the central axis. As it expands, it is possible to adjust the length from the central axis to each winding piece that spreads radially at the same time according to the inner diameter of the coil to be created, and to fix it to the desired length with the adjustment fixing nut. Further, by sliding the sliding ring toward the other end of the center shaft, the first link, the second link, and the bobbin piece operate in reverse, and the formed coil can be easily taken out. This allows insertion and removal of spacers,
In addition, work requiring a large number of man-hours such as individual adjustment of the length from the central axis to each winding drum piece is not required, so that work can be simplified and work time can be reduced, and various coils having different inner diameters can be used. It is possible to correspond to creation, etc.
It has excellent effects.

[Brief description of the drawings]

FIG. 1 is an axial sectional view of a coil winding device of the present invention.

FIG. 2 is a radial cross-sectional view of the coil winding device of the present invention.

FIG. 3 is a radial cross-sectional view showing a first conventional coil winding device.

FIG. 4 is an axial sectional view showing a second conventional coil winding device.

[Explanation of symbols]

1 center shaft, 2 first link, 4 roll piece, 5 adjusting and fixing nut, 6 sliding ring, 7 second link.

Claims (2)

[Claims] A shaft, a plurality of first support members pivotally supported at one end on a peripheral wall of the shaft and arranged radially, and a sliding member slidably fitted to the shaft. A plurality of second support members rotatably supported at one end by the sliding member and arranged radially; a coil-shaped portion having the other end of the first support member and the second support member; A coil winding device comprising: a winding drum member rotatably supported at the other end. 2. A shaft, a plurality of pairs of first support rods pivotally supported at one end on a peripheral wall of the shaft and pivotally arranged in a pair in the axial direction, and slidably on the shaft. A fitted sliding ring,
A plurality of second support rods pivotally supported at one end by the sliding ring and arranged radially; and a coil winding part having the other end of the first support rod and the second support rod. It comprises a plurality of winding drum members rotatably supported by the other end, and a fixing member for fixing a sliding ring at an arbitrary position on a shaft, and the first support rods forming a pair form parallel links. A coil winding device characterized in that: