JPH10144556A - Air core coil winding machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a small-sized air-core coil winding machine at a low cost which is used in a high frequency apparatus or the like. SOLUTION: A cylindrical winding shaft 1, a winding guide 2 formed around the outer periphery of the winding shaft 1, a trench 3 formed in the winding guide 2, a hollow pipe 4 formed facing the part between the trench 3 and the winding shaft 1, and an extruding part for extruding a lead wire 5 inserted in the hollow pipe 4 are installed. Thereby an air-core coil winding machine can be realized at a low cost.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air-core coil winding machine for manufacturing an air-core coil used for high-frequency equipment and the like.

[0002]

2. Description of the Related Art A conventional air-core coil winding machine will be described below.

[0003] In the conventional air-core coil winding machine, a lead wire is wound around a winding shaft. The lead wire is fixed to the winding shaft, and the winding shaft is rotated or the winding shaft is fed so that the air core is wound. It was to make a coil. And the control used extensive NC control.

[0004]

However, in such a conventional configuration, since the NC control is used, there is a problem that the apparatus is inevitably increased in size and equipment cost is increased.

An object of the present invention is to solve such a problem and to provide a low-cost air-core coil winding machine.

[0006]

To achieve this object, an air-core coil winding machine of the present invention comprises a cylindrical winding shaft, a winding guide provided along the outer periphery of the winding shaft, and
A groove provided in the winding guide, a hollow pipe provided between the groove and the winding shaft, and an extruding portion for extruding a lead wire inserted into the hollow pipe are provided. .

As a result, a small and low-priced air-core coil winding machine can be realized.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention is directed to a cylindrical winding shaft, a winding guide provided along the outer periphery of the winding shaft, a groove provided in the winding guide,
An air-core coil winding machine provided with a hollow pipe provided between the groove and the winding shaft, and an extruding portion for extruding a lead wire inserted into the hollow pipe. By simply extruding an air core coil, an air core coil can be formed along the groove of the winding guide, and there is no need to use NC control as in the prior art, so that a low cost air core coil winding machine can be obtained.

The winding guide according to the second aspect of the present invention is the air-core coil winding machine according to the first aspect, wherein the winding guide can be depressed and released toward a winding shaft via a lead wire. By pushing out the lead wire in a state where the lead wire is detached from the connector, the insertion terminal portion of the air-core coil can be easily formed.

According to a third aspect of the present invention, there is provided the air-core coil winding machine according to the first aspect, wherein ceramic is used as a material of the winding shaft, wherein a lead wire sliding between the winding shaft and the winding guide is provided. Abrasion of the winding shaft due to the contact friction of the roller can be reduced.

According to a fourth aspect of the present invention, the groove of the winding guide is coated with a ceramic or ruby or a steel material is quenched to a hardness, and one of mirror finishing is performed. An air-core coil winding machine capable of reducing the abrasion resistance of the groove of the winding guide due to the contact friction between the winding shaft and the lead sliding between the winding guide and improving the slip of the lead. Can be.

According to a fifth aspect of the present invention, the height of one wall surface of the groove formed in the winding guide is made smaller than the radius of the lead wire, and the height of the other wall surface is made larger than the radius of the lead wire. The air core coil winding machine according to claim 2, wherein the height of one wall surface of the groove is smaller than the radius of the lead wire, so that the air core coil can be closely wound.

According to a sixth aspect of the present invention, there is provided the air-core coil winding machine according to the fifth aspect, wherein a shaping guide for pressing a lead wire is provided on one wall surface side of the winding guide. Since the terminal portion is pressed against one wall surface of the groove by the shaping guide, the air core coil is correctly shaped.

According to a seventh aspect of the present invention, there is provided an air-core coil winding machine according to the sixth aspect, wherein an angle with respect to a winding axis is variable. Since the pitch can be increased or decreased, a pitch-wound air-core coil can be manufactured.

According to the present invention, a lead guide is provided on the side opposite to the hollow pipe with respect to the winding shaft, and the lead guides the lead wire along the groove of the winding guide with the lead wire interposed therebetween. The air core coil winding machine according to claim 1, wherein the lead wire can be securely inserted into the groove.

According to a ninth aspect of the present invention, the lead position detecting sensor is provided at a position where the lead wire extruded from the hollow pipe becomes a "V" shape through the winding shaft. This is a core coil winding machine, and the insertion terminal formed at the end of the lead wire is formed in a "V" shape through the air core coil, so that the insertion chuck can reliably grip the insertion terminal.

According to a tenth aspect of the present invention, there is provided an air-core coil winding machine according to the first aspect, further comprising a cutter for cutting a lead wire at a predetermined position after detaching the winding guide from the winding shaft. Since the lead wire can be cut at a predetermined position, an air-core coil having an appropriate insertion terminal portion can be obtained.

According to the eleventh aspect of the present invention, the air-core coil according to the tenth aspect has a lever for pressing the lead wire between the cutter and the winding shaft and rotating the insertion terminal portion of the lead wire downward. Since this is a winding machine, the insertion terminal portion of the air-core coil can be turned downward by a lever, so that the gripping operation by the insertion chuck in the next step can be easily performed.

According to a twelfth aspect of the present invention, there is provided a second hollow pipe in which a hollow pipe provided toward a winding shaft slides in the hollow, and a third hollow pipe sliding in the second hollow pipe. 2. The air-core coil winding machine according to claim 1, further comprising: a hollow pipe provided at one end of the third hollow pipe, and a pushing portion for gripping a lead wire and pushing the lead wire toward the winding shaft. Since the lead wire is guided in the second hollow pipe and the third hollow pipe, the lead wire can be extruded without deformation (meandering).

According to a thirteenth aspect of the present invention, there is provided the air-core coil winding machine according to the first aspect, wherein a roller is rotated at an entrance of a lead wire into a hollow pipe to extrude the lead wire. As a result, the lead wire can be pushed out, so that the space for the pushing operation can be reduced, and the size can be reduced.

According to a fourteenth aspect of the present invention, there is provided an air-core coil winding according to the twelfth aspect, wherein a film peeling portion or a film peeling confirming portion is provided at a predetermined position from the winding shaft behind the extrusion portion. The coating stripping section can reliably strip the coating of the insertion terminal portion of the air-core coil. Alternatively, for a lead wire from which a coating at a predetermined position has been stripped, it is possible to confirm at the coating stripping confirmation section that the coating has been stripped reliably.

According to a fifteenth aspect of the present invention, the winding shaft, the winding guide, and the hollow pipe are each detachable.
The air core coil winding machine described in (1) above can be freely exchanged as needed, so that the air core coil having different lead wire diameters and winding diameters is one air core coil winding machine. Can be easily manufactured.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In FIG. 1, an air-core coil winding machine of the present invention includes a cylindrical winding shaft 1, a winding guide 2 provided along the outer periphery of the winding shaft 1, and a groove 3 provided in the winding guide 2. And a hollow pipe 4 provided between the groove 3 and the winding shaft 1, and an extruding portion (not shown) for extruding a lead wire 5 inserted into the hollow pipe 4. . Reference numeral 6 denotes a sensor. The sensor 6 is provided at a position where the lead wire 5 extruded from the hollow pipe 4 has a “V” shape via the winding shaft 1. Further, since the winding shaft 1, the winding guide 2, and the hollow pipe 4 are detachably provided, a plurality of types of air-core coils having different lead wire diameters and winding diameters can be manufactured.
It is preferable to use ceramic as the material of the winding shaft 1 and coat the surface of the groove 3 of the winding guide 2 with ruby or ceramic. However, in the present embodiment, iron is hardened in consideration of cost and the surface is mirror-finished. As a result, the lead wire 5 sliding between the winding shaft 1 and the groove 3 of the winding guide 2
The frictional resistance generated at the surface can be improved, and the wear on the surface can be reduced.

Next, in FIG. 2, the winding guide 2 is moved toward the winding shaft 1 via the lead wire 5 in the direction A and pressed, and is moved in the direction B and detached. I have. Accordingly, by removing the winding guide 2 in the direction B and inserting the lead wire 5 toward the winding shaft 1 and pressing the winding guide 2 in the direction A, the insertion terminal 7
Can be easily provided.

FIG. 3 is a side view of the winding guide 2. As shown in FIG. 3, the height of one wall surface 3a of the groove 3 formed in the winding guide 2 is smaller than the radius of the lead wire 5, and the height of the other wall surface 3b is the radius of the lead wire 5. It is larger. In the present embodiment, the height of the other wall surface 3b is approximately twice the radius of the lead wire 5.
Thereby, the air-core coil 5a can be closely wound.

FIG. 4 shows a shaping guide 8 for pressing the lead wire 5 against one wall surface 3a of the groove 3 formed in the winding guide 2.
It is shown. Since the shaping guide 8 always presses the lead wire insertion terminal portion 7 of the lead wire 5 toward one end face side of the winding guide 2, the insertion terminal portion 7 of the lead wire 5 can be a normal air core coil 5a without overlapping. Can be.

This shaping guide 8 can change the angle with respect to the winding shaft 1 in the C direction or the D direction as shown in FIG. By changing the angle of the shaping guide 8 in this manner, the winding pitch of the air-core coil 5a can be changed, and a pitch-wound air-core coil can be manufactured.

A lead guide 9 shown in FIG. 6 allows the lead wire 5 to be securely mounted in the groove 3 of the winding guide 2 with the leading end of the lead wire 5 extruded from the hollow pipe 4 interposed therebetween. .

Reference numeral 10 shown in FIG. 7 denotes a lead cutter, which detaches the winding guide 2 from the winding shaft 1, pushes out the lead wire 5, and cuts it at a predetermined position. Thereby, the insertion terminal portion 7 of the air-core coil can be formed. Reference numeral 11 in FIG. 8 denotes a lever, which cuts the lead wire 5 with the lead cutter 10 and then rotates the insertion terminal 7 of the lead wire 5 downward. Thus, since the insertion terminal portion of the air-core coil 5a always faces downward, the gripping operation of the insertion chuck can be easily performed in the next step. Reference numeral 12 denotes a position regulating pin. The position regulating pin 12 presses the air-core coil 5a in the direction E so that the air-core coil 5a comes into contact with the wall surface 1a of the winding shaft 1 so that the air-core coil 5a is always in the same place. Can be set.
Therefore, the gripping operation by the insertion chuck in the next step is further facilitated.

As shown in FIG. 9, there is provided a second hollow pipe 13 in which the hollow pipe 4 slides, and a third hollow pipe slidable in the second hollow pipe 13. 14 and the third hollow pipe 14
Is provided with an extruded portion 15 at the end of. By pushing the lead wire 5 in the F direction by the pushing portion 15, the lead wire 5 slides in the second hollow pipe 13 or the third hollow pipe 14, so that the lead wire 5 is deformed (meandering).
Never do. Reference numeral 16 denotes a film peeling confirming portion, which is provided at a predetermined distance from the winding shaft 1. That is, by confirming the peeling of the film at this position, it is possible to confirm in advance that the film has been peeled at the insertion terminal portion of the completed air core coil. Here, if the film peeling is not confirmed by the film peeling confirmation unit 16, the device is stopped and the operator is informed,
Appropriate measures are taken. Note that a film peeling portion 17 may be provided in place of the film peeling confirmation portion 16, and the film of the lead wire 5 may be peeled at this position. This eliminates the need for a device that separates the coating in a separate step. Although not shown, the lead wire 5 of the hollow pipe 4 is not shown.
A roller may be provided in the insertion portion of the lead wire, and the lead wire 5 may be pushed out by the roller. According to such a method, the second hollow pipe 13 or the third hollow pipe 1
Since there is no need to use the coil 4, the size of the air-core coil winding machine can be reduced.

[0031]

As described above, according to the present invention, a cylindrical winding shaft, a winding guide provided along the outer periphery of the winding shaft, a groove provided in the winding guide, It has a hollow pipe provided between the winding shafts, and a configuration including an extruding portion for extruding a lead wire inserted into the hollow pipe. The air-core coil can be formed along the groove of the guide, and it is not necessary to use the conventional NC control, and a low-cost air-core coil winding machine can be obtained.

[Brief description of the drawings]

FIG. 1 is a side view of a main part of an air-core coil winding machine according to an embodiment of the present invention.

FIG. 2 is a main part side view for explaining the winding operation.

FIG. 3 is a side view of the winding guide.

FIG. 4 is a perspective view of an essential part for explaining a shaping guide;

FIG. 5 is a plan view for explaining the pitch-wound coil.

FIG. 6 is a perspective view of a main part for explaining the periphery of the lead guide;

FIG. 7 is a perspective view of an essential part for explaining the lead cutter.

FIG. 8 is a perspective view of an essential part for explaining the lever.

FIG. 9 is a plan view of the entire air-core coil winding machine;

[Description of Signs] 1 winding shaft 2 winding guide 3 groove 4 hollow pipe 5 lead wire 6 sensor

Claims (15)

[Claims] 1. A cylindrical winding shaft, a winding guide provided along the outer periphery of the winding shaft, a groove provided in the winding guide, and a groove provided between the groove and the winding shaft. An air-core coil winding machine including a hollow pipe and an extruding part for extruding a lead wire inserted into the hollow pipe. 2. The air-core coil winding machine according to claim 1, wherein the winding guide can be depressed and released toward a winding shaft via a lead wire. 3. The air-core coil winding machine according to claim 1, wherein ceramic is used as a material of the winding shaft. 4. The air-core coil winding machine according to claim 1, wherein the groove of the winding guide is formed by coating a ceramic or ruby or quenching steel to a hardness and further performing one of mirror finishing. 5. The height of one wall surface of the groove formed in the winding guide is smaller than the radius of the lead wire, and the height of the other wall surface is larger than the radius of the lead wire.
2. An air-core coil winding machine according to item 1. 6. The air-core coil winding machine according to claim 5, wherein a shaping guide for pressing a lead wire is provided on one wall side of the winding guide. 7. The air-core coil winding machine according to claim 6, wherein an angle of the shaping guide with respect to the winding axis is variable. 8. The empty space according to claim 1, wherein a lead guide is provided on a side opposite to the hollow pipe with respect to the winding shaft, and the lead guides the lead along the groove of the winding guide with the lead interposed therebetween. Core coil winding machine. 9. The air-core coil winding machine according to claim 1, wherein a lead position detecting sensor is provided at a position where the lead wire extruded from the hollow pipe becomes a “V” shape through the winding shaft. 10. After detaching the winding guide from the winding shaft,
The air-core coil winding machine according to claim 1, further comprising a cutter for cutting the lead wire at a predetermined position. 11. The air-core coil winding machine according to claim 10, further comprising a lever for pressing the lead wire between the cutter and the winding shaft to rotate the insertion terminal portion of the lead wire downward. 12. A hollow pipe provided toward a winding shaft is provided with a second hollow pipe sliding inside the hollow pipe, and a third hollow pipe sliding inside the second hollow pipe. The air-core coil winding machine according to claim 1, further comprising an extruding portion for gripping the lead wire and pushing the lead wire toward the winding shaft at one end of the hollow pipe. 13. The air-core coil winding machine according to claim 1, wherein a roller is rotated at an entrance of the lead wire into the hollow pipe to extrude the lead wire. 14. The air-core coil winding machine according to claim 12, wherein a film peeling portion or a film peeling confirming portion is provided at a predetermined position from the winding axis behind the extruding portion. 15. The air-core coil winding machine according to claim 1, wherein the winding shaft, the winding guide, and the hollow pipe are each detachable.