JP5334504B2 - Edgewise coil manufacturing equipment - Google Patents

Description

  The present invention relates to an edgewise coil manufacturing apparatus, and more particularly, to an edgewise coil for manufacturing an edgewise coil that is a braided wire knitted with an insulation-coated self-bonding electric wire and wound with a braided wire having a flat cross section. The present invention relates to a coil manufacturing apparatus.

2. Description of the Related Art Conventionally, an edgewise coil is known in which a plurality of round wires, foils, or flat wires are arranged into a plate-like wire group, and the plate-like wire group is edgewise wound (see, for example, Patent Document 1). ).
On the other hand, an electronic component in which a braided wire is wound around a bobbin is known (for example, see Patent Document 2). However, this is not an edgewise coil.
JP-A-4-75303 JP 2002-141232 A

In edgewise coils, eddy currents can be subdivided and the high-frequency loss can be reduced as the number of strands constituting the plate-like wire group increases. However, in the conventional edgewise coil, the strands are There is a limit to increasing the number, and there is a limit to sufficiently reducing high-frequency loss. Further, if the strands are parallel, there is a problem that current non-uniformity occurs between the strands from the outside to the inside.
On the other hand, if the edgewise coil is manufactured using a braided wire knitted from an insulation-coated self-bonding electric wire and having a flat cross section, the above problem can be improved.
However, conventionally, an apparatus for manufacturing such an edgewise coil is not known.
Therefore, an object of the present invention is to provide an edgewise coil manufacturing apparatus for manufacturing an edgewise coil that is a braided wire knitted with an insulation-coated self-bonding electric wire and wound with a braided wire having a flat cross section. It is in.

In a first aspect, the present invention provides a rotatable winding core (1) for winding a braided wire (W3), which is a braided wire knitted with an insulation-coated self-bonding electric wire and has a flat cross section, into a solenoid shape (1). ), And a braided wire sending means (10) for feeding a braided wire having a flatness lower than that of the flat braided wire (W3) wound around the core (1) to the core (1), The flat braided wire (W3) wound around the core (1) has a receiving surface (21) for receiving the pressing start side surface and can rotate together with the core (1). The receiving side plate (20) and the pressing surface (33) that contacts the braided wire fed from the braided wire sending means (10) and presses the receiving side plate (20) in the direction of pressing against the receiving surface (21) of the receiving side plate (20). And the flat braided wire (W3) wound around the core (1) ; And a press side plates for relative movement (30) relative to the winding core (1) in the rotation axis direction of the winding core (1) in accordance with the number of turns, the receiving side plate receiving surface (20) (21 ) And the pressing surface (33) are arranged such that the braided wire fed from the braided wire sending means (10) contacts the pressing surface (33) and deforms into an arc shape so that the core (1) The edgewise coil manufacturing apparatus is characterized in that the flatness of the braided wire is gradually increased during the period until the wire is wound up.

In the above configuration, high / low flatness means that the value obtained by dividing the length (width) in the major axis direction of the cross section by the length (thickness) in the minor axis direction is large / small.
In the above configuration, the braided wire sent out from the braided wire sending means (10) may be a braided wire (W1) obtained by knitting an insulating coated self-bonding electric wire in a circular or elliptical cross section, or a core ( You may use the braided wire (W2) compressed to the preliminary flat shape of flatness lower than the flatness at the time of winding in 1).
In the above configuration, relative movement may be performed by fixing the core (1) and moving the push side plate (30), or vice versa, or by the core (1) and the push side plate (30). ) May be moved.
Furthermore, in the said structure, the space | interval of the receiving surface (21) and pressing surface (33) of a winding start side plate (20) may be changed smoothly, and may be changed in steps.

When a braided wire having a high flatness from the beginning was deformed into an arc shape and wound around the core, damage caused by friction between the already wound braided wire and the newly wound braided wire was large.
Therefore, in the edgewise coil manufacturing apparatus according to the first aspect, the braided wire sent out from the braided wire sending means (10) contacts the pressing surface (33) and then deforms into an arc shape to form the core (1). The flatness of the braided wire was increased before being wound up. As a result, it was possible to reduce the damage received by the braided wire, rather than deforming the braided wire having a high flatness from the beginning into an arc and winding it on the core.

  When a predetermined number of turns have been wound in the form of a solenoid, the insulation coating on the winding start end and winding end end of the braided wire (W3) is removed, and an energization heating device is connected to these ends to energize Heat or heat by blowing warm air with a warm air generator, self-fuse, and then cool. Thereby, even if it removes from a core (1), a coil shape can be maintained.

In a second aspect, the present invention provides the braided wire (W1) in which the braided wire sending means in the edgewise coil manufacturing apparatus according to the first aspect braided an insulation-coated self-bonding electric wire in a circular or elliptical cross section. ) And a compression feed roller (11, 12) that sends out a preliminarily flat braided wire (W2) to provide an edgewise coil manufacturing apparatus.
In the edgewise coil manufacturing apparatus according to the second aspect, the cross section of the braided wire (W1) obtained by knitting the insulation-coated self-bonding electric wire into a circular or elliptical cross section is compressed by the compression feed rollers (11, 12). A flat braided wire (W2) is used. For this reason, it is possible to use an easily available braided wire (W1) in which an insulation-coated self-bonding electric wire is knitted in a circular cross section or an ellipse.

In a third aspect, the present invention provides the edgewise coil manufacturing apparatus according to the first or second aspect, wherein the push side plate (30) is fed from the braided wire sending means (10). There is provided an edgewise coil manufacturing apparatus having a guide groove (32) into which the guide groove (32) is fitted, and the bottom surface of the guide groove (32) being the push surface (33).
In the edgewise coil manufacturing apparatus according to the third aspect, the speed of deforming the braided wire into an arc shape and the speed of increasing the flatness can be defined by the shape of the guide groove (32).

In a fourth aspect, the present invention provides the edgewise coil manufacturing apparatus according to the third aspect, wherein the guide groove (32) comprises a straight portion and an arc portion. )I will provide a.
In the edgewise coil manufacturing apparatus (100) according to the fourth aspect, since the shape of the guide groove (32) can be defined by a straight line and an arc, it is easy to manufacture.

In a fifth aspect, the present invention provides the edgewise coil manufacturing apparatus according to the third aspect, wherein the guide groove (32) includes a spiral portion and an arc portion. )I will provide a.
In the edgewise coil manufacturing apparatus (200) according to the fifth aspect, since there is a spiral portion in which the radius of curvature gradually changes, the braided wire can be naturally deformed into an arc shape.

In a sixth aspect, the present invention provides the edgewise coil manufacturing apparatus according to the first or second aspect, wherein the push side plate (30) has a frustoconical surface, The predetermined angular position is inclined with respect to the rotation axis direction of the winding core (1) so that the predetermined angular position is parallel to the receiving surface (21) of the receiving side plate (20), and the truncated conical surface is An edgewise coil manufacturing apparatus (300) characterized by being a push surface (33) is provided.
In the edgewise coil manufacturing apparatus (300) according to the sixth aspect, the braided wire is formed into an arc shape by an angle formed by a line that cuts the frustoconical surface with respect to the central axis in a cross section including the central axis of the frustoconical surface. It is possible to define the deformation speed and the speed to increase the flatness.

  According to the edgewise coil manufacturing apparatus of the present invention, an edgewise coil can be manufactured using a braided wire knitted from an insulation-coated self-bonding electric wire and having a flat cross section. Further, it is possible to suppress damage to the braided wire when winding.

  Hereinafter, the present invention will be described in more detail with reference to embodiments shown in the drawings. Note that the present invention is not limited thereby.

FIG. 1 is a schematic side view illustrating an edgewise coil manufacturing apparatus 100 according to the first embodiment.
The edgewise coil manufacturing apparatus 100 includes a rotatable winding core 1 for winding a flat braided wire W3, which is a braided wire of an insulation-coated self-bonding electric wire and has a flat cross section, into a solenoid shape, There is a braided wire precompression sending mechanism 10 for sending a precompressed braided wire W2 having a flatness lower than that of the braided wire W3 to the core 1, and a receiving surface 21 for receiving the pressing start side of the flat braided wire W3. And a flat braided wire wound around the core 1, which has a receiving side plate 20 that can rotate with the core 1, and a pressing surface 33 that presses against the receiving surface 21 in contact with the pre-compression braided wire W 2. It includes a push side plate 30A that moves in the direction of the rotation axis of the core 1 according to the number of windings of W3, and a drive mechanism unit 5 incorporating a main drive unit.

  The winding core 1 is rotated about a rotating shaft 41 by a winding motor 40.

The braided wire pre-compression delivery mechanism 10 includes compression feed rollers 11 and 12 that compress a braided wire W1 obtained by knitting an insulation-coated self-bonding electric wire in a circular or elliptical cross section and send it out as a pre-compressed braided wire W2, and a compression feed roller 12 The feed motor 13 that rotationally drives, the compression feed rollers 11 and 12, and the feed motor 13 are supported in the longitudinal direction (direction parallel to the rotation axis 41 of the core 1) and the lateral direction (direction perpendicular to the paper surface of FIG. 1). The movable arm 14 is movable in the vertical direction, the vertical movement motor 15 for moving the movable arm 14 in the vertical direction, and the horizontal movement motor 16 for moving the movable arm 14 in the horizontal direction.
By moving the movable arm 14 in the vertical and horizontal directions, the angle at which the pre-compression braided wire W2 enters the push side plate 30A can be adjusted.

  The receiving side plate 20 has a slit through which the winding terminal W4 that is the winding start end of the flat braided wire W3, a winding terminal stopper 22 that holds the slit, and an inclined recess in which the first half turn fits.

  The push side plate 30 </ b> A does not rotate but can move in the direction of the rotation axis 41 of the core 1. That is, when the screw rod 47 is rotated by the rotation of the winding motor 40, the push side plate 30A screwed with the screw rod 47 is moved. 48a and 48b in FIG. 2 are support rods that support the push side plate 30A so that the push side plate 30A can move.

FIG. 2 is a schematic view of the side face plate 20 viewed from the side of the push side plate 30A with the push side plate 30A removed.
The pre-compression braided wire W2 linearly descending from the braided wire pre-compression delivery mechanism 10 is deformed into an arc shape so as to be wound around the core 1, and is wound around the core 1.

FIG. 3 is a schematic view of the push side plate 30A viewed from the push surface 33 side.
The pressed side plate 30A has a core hole 31 through which the core 1 is inserted and a guide groove 32 into which the preliminary compression braided wire W2 is fitted.
The guide groove 32 includes a straight portion and an arc portion.
The bottom surface of the guide groove 32 is a push surface 33.

4 is an AA ′ end view of FIG. 5 is an end view taken along the line BB ′ of FIG. 6 is a cross-sectional view taken along the line CC ′ of FIG. FIG. 7 is a DD ′ end view of FIG. 8 is an end view taken along line EE ′ of FIG. FIG. 9 is an end view taken along line FF ′ of FIG.
As shown by the two-dot chain line, the pre-compression braided wire W2 is shown on the right side of FIG. 8, the right side of FIG. 9, the left side of FIG. 4, the left side of FIG. 9 proceeds to the right side of FIG. 4, the right side of FIG. 5, the right side of FIG. 5, and the right side of FIG. 6, and then proceeds to the right side of FIG.
Between about 270 degrees from the left side of FIG. 4 to the right side of FIG. 7, the bottom surface of the guide groove 32, that is, the pressing surface 33 rises smoothly. For this reason, between about 270 degrees, the pre-compression braided wire W2 is deformed into an arc shape suitable for the core 1, and the flatness is increased to the flatness of the flat braided wire W3.

  According to the edgewise coil manufacturing apparatus 100 of the first embodiment, it is possible to manufacture an edgewise coil that is a braided wire knitted with an insulation-coated self-bonding electric wire and wound with a flat braided wire W3 having a flat cross section. . Since the preliminary compression braided wire W2 comes into contact with the pressing surface 33 and is deformed into an arc shape and wound around the core 1, the flatness is increased to the flatness of the flat braided wire W3. The damage received by the braided wire can be reduced compared to winding the braided wire having the flatness of the flat braided wire W3 from the beginning around the core 1.

FIG. 10 is a schematic side view illustrating the edgewise coil manufacturing apparatus 200 according to the second embodiment.
The configuration of the edgewise coil manufacturing apparatus 200 is the same as that of the edgewise coil manufacturing apparatus 100 according to the first embodiment except for the push side plate 30B.

FIG. 11 is a schematic view of the side face plate 20 viewed from the side of the push side plate 30B with the push side plate 30B removed.
The pre-compression braided wire W2 linearly descending from the braided wire pre-compression delivery mechanism 10 is deformed into a spiral shape while reducing the radius of curvature, and then deformed into an arc shape so as to be wound around the core 1, 1 is wound up.

FIG. 12 is a schematic view of the push side plate 30B as seen from the push surface 33 side.
The push side plate 30B has a core hole 31 through which the core 1 is inserted and a guide groove 32 into which the preliminary compression braided wire W2 is fitted.
The guide groove 32 includes a spiral portion and an arc portion.
The bottom surface of the guide groove 32 is a push surface 33.

FIG. 13 is an end view taken along line AA ′ of FIG. 14 is an end view taken along line BB ′ of FIG. FIG. 15 is an end view taken along the line CC ′ of FIG. FIG. 16 is a DD ′ end view of FIG. FIG. 17 is an end view taken along line EE ′ of FIG. 18 is an end view taken along the line FF ′ of FIG.
As shown by the two-dot chain line, the pre-compression braided wire W2 is arranged on the outer side on the right side in FIG. 18, the outer side on the left side in FIG. 13, the left side in FIG. 14, the left side in FIG. The left side of FIG. 18, the right side of FIG. 13, the right side of FIG. 14, the right side of FIG. 15, the right side of FIG. 16, the right side of FIG. The flat braided wire W3 is wound around 1.
Between the outer side on the right side of FIG. 18 and the right side of FIG. For this reason, between about 210 degrees, the pre-compression braided wire W2 is deformed in a spiral shape with a small curvature radius, but the flatness is hardly changed. The bottom surface of the guide groove 32, that is, the pushing surface 33 rises smoothly between about 180 degrees from the right side in FIG. 13 to the inside on the left side in FIG. For this reason, during this approximately 180 degrees, the pre-compression braided wire W2 is deformed into an arc shape suitable for the core 1, and the flatness is increased to the flatness of the flat braided wire W3.

  According to the edgewise coil manufacturing apparatus 200 of the second embodiment, it is possible to manufacture an edgewise coil in which a flat braided wire W3 having a flat cross section is wound, which is a braided wire knitted with an insulation-coated self-bonding electric wire. . Since the preliminary compression braided wire W2 comes into contact with the pressing surface 33 and is deformed into an arc shape and wound around the core 1, the flatness is increased to the flatness of the flat braided wire W3. The damage received by the braided wire can be reduced compared to winding the braided wire having the flatness of the flat braided wire W3 from the beginning around the core 1.

FIG. 19 is a schematic side view illustrating the edgewise coil manufacturing apparatus 300 according to the third embodiment.
The edgewise coil manufacturing apparatus 300 is the same as the edgewise coil manufacturing apparatus 100 according to the first embodiment except for the push side plate 30C and the holding mechanisms 45 and 46 of the push side plate 30C.

  The push side plate 30 </ b> C has a frustoconical surface, and the frustoconical surface is a push surface 33. And it is installed inclining with respect to the rotation axis direction of the winding core 1 so that the angular position of the truncated conical surface which is the foremost direction in FIG.

  The holding mechanisms 45 and 46 of the push side plate 30C hold the push side plate 30C so that the posture of the push side plate 30C is maintained constant and can be rotated in a driven manner.

FIG. 20 is a schematic view in which the push side plate 30C is removed and the receiving side plate 20 side is viewed from the push side plate 30C side.
The pre-compression braided wire W2 linearly descending from the braided wire pre-compression delivery mechanism 10 is deformed into an arc shape so as to be wound around the core 1, and is wound around the core 1.

(A)-(d) of FIG. 21 is a four-plane figure of the push side plate 30C.
When (b) is a front view, (a) is a top view, (c) is a left side view, and (d) is a right side view.
The tapered angle α of the frustoconical surface, that is, the pressing surface 33 shown in FIG. 21A is such that the pre-compressed braided wire W2 is between the flat braided wire W3 wound around the core 1 and the pressing surface 33. Set it to fit comfortably.
The inner surface of the core hole 31 through which the core 1 is inserted is also a frustoconical surface.

  According to the edgewise coil manufacturing apparatus 300 of the third embodiment, it is possible to manufacture an edgewise coil that is a braided wire knitted with an insulation-coated self-bonding electric wire and wound with a flat braided wire W3 having a flat cross section. . Since the preliminary compression braided wire W2 comes into contact with the pressing surface 33 and is deformed into an arc shape and wound around the core 1, the flatness is increased to the flatness of the flat braided wire W3. The damage received by the braided wire can be reduced compared to winding the braided wire having the flatness of the flat braided wire W3 from the beginning around the core 1.

FIG. 22 is a schematic side view illustrating the edgewise coil manufacturing apparatus 400 according to the fourth embodiment.
The edgewise coil manufacturing apparatus 400 is the same as the edgewise coil manufacturing apparatus 300 according to the third embodiment except for the reflection type optical sensors 17 and 18 and the feed control unit 16.

FIG. 23 is a schematic view in which the push side plate 30C is removed and the receiving side plate 20 side is viewed from the push side plate 30C side.
The pre-compression braided wire W2 linearly descending from the braided wire pre-compression delivery mechanism 10 is deformed into a spiral shape while reducing the radius of curvature, and then deformed into an arc shape so as to be wound around the core 1, 1 is wound up.

  The feed control unit 16 controls the rotation speed of the feed motor 13 so that the pre-compression braided wire W2 that deforms in a spiral shape passes between the reflection type optical sensors 17 and 18. That is, if the preliminary compression braided wire W2 is lower than the reflection type optical sensor 18, the rotational speed of the feed motor 13 is decreased, and if the preliminary compression braided wire W2 is higher than the reflection type optical sensor 17, the rotational speed of the feed motor 13 is increased. Thereby, even if there is no guide groove 32 like Example 1, 2, the deformation pattern of the pre-compression braided wire W2 can be maintained helically.

  According to the edgewise coil manufacturing apparatus 400 of the fourth embodiment, it is possible to manufacture an edgewise coil that is a braided wire knitted with an insulation-coated self-bonding electric wire and wound with a flat braided wire W3 having a flat cross section. . Since the preliminary compression braided wire W2 comes into contact with the pressing surface 33 and is deformed into an arc shape and wound around the core 1, the flatness is increased to the flatness of the flat braided wire W3. The damage received by the braided wire can be reduced compared to winding the braided wire having the flatness of the flat braided wire W3 from the beginning around the core 1.

  The edgewise coil manufacturing apparatus of the present invention can be used for manufacturing an edgewise coil with little loss at high frequencies.

1 is a schematic side view showing an edgewise coil manufacturing apparatus according to Embodiment 1. FIG. It is a schematic diagram when the push side plate is removed and the receiving side plate side is viewed from the push side plate side. It is the schematic diagram which looked at the push side plate from the push surface side. FIG. 4 is an A-A ′ end view of FIG. 3. FIG. 4 is a B-B ′ end view of FIG. 3. FIG. 4 is a C-C ′ end view of FIG. 3. FIG. 4 is a D-D ′ end view of FIG. 3. FIG. 4 is an end view of E-E ′ in FIG. 3. FIG. 4 is an end view of F-F ′ in FIG. 3. It is a typical side view which shows the edgewise coil manufacturing apparatus which concerns on Example 2. FIG. It is a schematic diagram when the push side plate is removed and the receiving side plate side is viewed from the push side plate side. It is the schematic diagram which looked at the push side plate from the push surface side. It is A-A 'end elevation of FIG. FIG. 13 is a B-B ′ end view of FIG. 12. FIG. 13 is a C-C ′ end view of FIG. 12. FIG. 13 is a D-D ′ end view of FIG. 12. FIG. 13 is an end view of E-E ′ of FIG. 12. FIG. 13 is an end view of F-F ′ in FIG. 12. 6 is a schematic side view showing an edgewise coil manufacturing apparatus according to Embodiment 3. FIG. It is a schematic diagram when the push side plate is removed and the receiving side plate side is viewed from the push side plate side. It is a four-view figure of a push side plate. 6 is a schematic side view showing an edgewise coil manufacturing apparatus according to Embodiment 4. FIG. It is a schematic diagram when the push side plate is removed and the receiving side plate side is viewed from the push side plate side.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Winding core 10 Braided wire preliminary compression delivery mechanism 11, 12 Compression feed roller 13 Feeding motor 20 Receiving side plate 21 Receiving surface 30 Pushing side plate 31 Winding core hole 32 Guide groove 33 Pushing surface 100, 200, 300, 400 Edgewise coil manufacturing device

Claims (6)

A rotatable winding core (1) for winding a braided wire (W3), which is a braided wire knitted with an insulation-coated self-bonding electric wire and having a flat cross section, into a solenoid shape; and the winding core (1) A braided wire sending means (10) for sending a braided wire having a flatness lower than that of the wound flat braided wire (W3) to the winding core (1), and wound on the winding core (1). A receiving side plate (20) having a receiving surface (21) for receiving the pressing side surface of the flat braided wire (W3) being pressed, and capable of rotating together with the winding core (1), and the braiding The winding core (1) has a pressing surface (33) that presses in the direction of pressing against the receiving surface (21) of the receiving side plate (20) in contact with the braided wire sent out from the wire sending means (10). Depending on the number of turns of the flat braided wire (W3) wound around the winding core (1 Of; and a press side plates for relative movement (30) in the rotation axis direction relative to the winding core (1), the interval of the receiving receiving surface of the side plate (20) (21) and said pushing surface (33) Is between the time when the braided wire (W2) sent out from the braided wire sending means (10) comes into contact with the pressing surface (33) until it is deformed into an arc and wound around the core (1). The edgewise coil manufacturing apparatus is characterized in that the flatness of the braided wire is increased in the meantime.   2. The edgewise coil manufacturing apparatus according to claim 1, wherein the braided wire sending means compresses a braided wire (W1) obtained by braiding an insulation-coated self-bonding electric wire in a circular shape or an elliptical shape, thereby preliminarily flattened braiding. An edgewise coil manufacturing apparatus comprising a compression feed roller (11, 12) that feeds the wire (W2).   The edgewise coil manufacturing apparatus according to claim 1 or 2, wherein the push side plate (30) has a guide groove (32) into which the braided wire fed from the braided wire sending means (10) is fitted. And the edgewise coil manufacturing apparatus characterized by the bottom face of the said guide groove (32) being the said pushing surface (33).   The edgewise coil manufacturing apparatus (100) according to claim 3, wherein the guide groove (32) includes a straight portion and an arc portion.   The edgewise coil manufacturing apparatus (200) according to claim 3, wherein the guide groove (32) includes a spiral portion and an arc portion.   3. The edgewise coil manufacturing apparatus according to claim 1 or 2, wherein the push side plate (30) has a truncated conical surface, and a predetermined angular position of the truncated conical surface is the receiving side plate ( 20) is inclined with respect to the rotational axis direction of the core (1) so as to be parallel to the receiving surface (21), and the frustoconical surface is the pushing surface (33). An edgewise coil manufacturing apparatus (300).

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