JP2002353058A - Coil-winding machine and coil device using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a coil-winding machine which manufactures a coil with high productivity. SOLUTION: The machine includes a wire-feeding section 13 for feeding a wire material 11, a wire guide 15 provided downstream of the wire-feeding section 13 for guiding the wire material 11 in straight line, a bending punch 17 provided in the vicinity of an outlet 16 of the wire guide 15, and a controller for controlling the wire-feeding section 12 and the bending punch 17. Thereby a coil-winding machine can be obtained with high manufacturing efficiency.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coil winding machine used for a high-frequency device and the like and a coil device using the same.

[0002]

2. Description of the Related Art A conventional air-core coil employs a cylindrical air-core coil 1 as shown in FIG. And
This air-core coil 1 has a soldering portion 2
And fixed by soldering.

However, in such an air-core coil 1, regardless of whether an operator grasps the air-core coil 1 by hand or inserts it with an automatic insertion machine, the operator grasps the coil 1 and inserts it into the small hole 4. The soldering part 2 had to be inserted, and the insertion was very difficult.

Accordingly, as shown in FIG. 14, a surface-mounted air-core coil 5 that does not require insertion has come to be used. That is, the air-core coil 5 is provided with a soldering portion 7 at the tip of the lead portion 6, and the soldering portion 7 is
Was soldered to the land 9 by reflow soldering. In any case, the air-core coil 5 is circular. In this production, the coil is wound around a columnar core, the both ends thereof are cut to form a lead portion 6, and the soldered portion 7 is further formed. It was formed by bending manually.

[0005]

However, in such a conventional shape, since the soldered portion 7 is bent inward, it is difficult to mechanize the soldered portion 7 and it is formed manually. Therefore, the production efficiency was low.

An object of the present invention is to solve such a problem and to provide a coil winding machine for obtaining a coil with high production efficiency.

[0007]

To achieve this object, a coil winding machine according to the present invention comprises a wire feeder for feeding a wire, and a wire feeder provided downstream of the wire feeder and guiding the wire in a straight line. A wire guide, and a bending punch provided near the outlet of the wire guide and bent linearly by pressing the wire fed from the outlet,
Having a control unit for controlling the wire feeding unit and the bending punch, sending out the wire material at the wire feeding unit, and deriving the wire material at a time when a predetermined dimension of the wire material is derived from the outlet. Is stopped, then the bending punch is moved to bend the wire rod, and then the bending punch is returned to its original state, and a coil winding machine that forms a coil by repeating this operation a predetermined number of times, The coil is formed by bending a wire fed straight from the outlet. Thereby, a coil winding machine with high production efficiency can be obtained.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention according to claim 1 of the present invention provides a wire feeder for feeding a wire, a wire guide provided downstream of the wire feeder and guiding the wire in a straight line, A bending punch provided near the exit of the wire guide and configured to linearly bend by pressing the wire fed from the exit, and a control unit that controls the wire feeding unit and the bending punch; Sending out the wire at the feed unit, stopping the wire at the time when the wire has a predetermined size derived from the outlet, then moving the bending punch to bend the wire, and then the A coil winding machine that forms a coil by returning the bending punch to its original state and repeating this operation a predetermined number of times, and bending the wire fed straight from the outlet. Since forming the yl, it is possible to form the coil body and the soldering portion in the same step.
Therefore, unlike the related art, it is not necessary to newly manufacture the soldered portion in another step, and the production efficiency is improved.

Further, by controlling the feed amount of the wire rod by the wire feed unit by the control unit, the coil shape can be freely changed. Further, the type of the coil can be easily switched.

Further, since the coil is a surface mountable coil and has a flat portion by bending, it is possible to obtain a coil which can be stably mounted. Also, adjustment can be made easily as with a conventional coil.

According to a second aspect of the present invention, there is provided the coil winding machine according to the first aspect, wherein the cutting blade is provided near the outlet and cuts the wire rod. Can easily be obtained.

According to a third aspect of the present invention, there is provided the coil winding machine according to the first aspect, wherein the bending punch is provided with a groove for guiding the wire, and since the groove has the groove, the wire is damaged. There is nothing. In addition, a stable bending angle can be obtained.

According to a fourth aspect of the present invention, the wire is bent by pressing the wire with a bending punch against a wall provided at the outlet, and a guide for forming a winding pitch of the coil is provided on the wall. The coil winding machine according to claim 1, wherein a guide for forming a winding pitch is provided, so that a coil having a stable winding pitch can be obtained.

According to a fifth aspect of the present invention, there is provided a stripping tool for stripping the coating of the wire rod upstream of the wire feeder, and the distance between the stripping tool and the outlet is a predetermined dimension. Since the coil winding machine described above has a stripping tool, a coil can be formed while stripping the coating even with a coated wire.

According to a sixth aspect of the present invention, there is provided the coil winding machine according to the fifth aspect, wherein the distance between the peeling tool and the outlet can be changed by an instruction from the control unit. Various kinds of coils can be manufactured.

According to a seventh aspect of the present invention, there is provided the coil winding machine according to the fifth aspect, wherein a tension portion for adjusting a difference in processing speed between the line feeding portion and the stripping tool is provided. Since the tension portion is provided, the difference in processing speed between the two can be absorbed, and the coil can be manufactured efficiently.

The wire feeder according to the invention of claim 8 is the coil winding machine according to claim 1, wherein the wire is fed by rollers provided to face each other. Can be sent.

According to a ninth aspect of the present invention, there is provided the coil winding machine according to the eighth aspect, wherein the surface of the roller is formed of a friction member, and since the roller has the friction member, the wire does not slip. And an accurate wire feed amount can be obtained.

According to a tenth aspect of the present invention, there is provided the coil winding machine according to the first aspect, wherein the wire feeder is controlled to bend the wire so that the cross-sectional shape of the coil becomes triangular. In addition, since a coil having a triangular cross section can be obtained, the shape is stabilized. In addition, since the top surface of the coil has an angle, positioning when suctioning with a nozzle or the like at the time of detachment of the coil becomes easy.

[0020] The invention according to claim 11 is the coil winding machine according to claim 1, wherein the wire feed portion is controlled to bend the wire length so that the coil has a quadrangular cross section. In addition, since the cross-sectional shape is a quadrangle, a coil having a large inductance value can be obtained in the same occupied area.

According to a twelfth aspect of the present invention, in the coil winding machine according to the first aspect, the feeding length of the wire is controlled by the wire feeding portion so that the cross-sectional shape of the coil becomes a horizontally long rectangle. In addition, since the shape of the coil is horizontally long, the thickness can be reduced when the coil is mounted on a printed circuit board.

According to a thirteenth aspect of the present invention, in the coil winding according to the first aspect, the feeding length of the wire is controlled by the wire feeding portion so that the cross-sectional shape of the coil becomes a vertically long rectangular shape. Since the coil is vertically long, the mounting area of the printed circuit board can be reduced when mounting on a printed circuit board.

According to a fourteenth aspect of the present invention, there is provided the coil winding machine according to the first aspect, wherein the feeding length of the wire is controlled by the wire feeding portion so that only the both ends of the coil become longer. Since only the length is longer, the coil body other than the end of the coil can be floated from the printed circuit board.
Therefore, a short circuit of the coil can be prevented, and a wiring pattern can be provided on the printed board below the coil.

According to a fifteenth aspect of the present invention, there is provided the coil winding machine according to the first aspect, wherein the cross section of the coil is bent so as to have a pentagonal shape. A coil having substantially the same occupied area can be obtained. In addition, since the top surface of the coil has an angle, positioning when suctioning with a nozzle or the like at the time of detachment of the coil becomes easy.

In the coil winding machine according to the first aspect of the present invention, the wire is bent approximately 15 degrees more than the bending angle of the wire. No change in bending shape due to

According to a seventeenth aspect of the present invention, a stripping tool for stripping the coating of the wire is provided upstream of the wire feeding section, and a detecting section for detecting the stripping of the wire between the wire feeding section and the wire guide is provided. The coil winding machine according to claim 1, wherein a tension unit is provided between the stripping tool and the wire feeding unit, and the coil winding machine includes a detection unit that detects a stripped state of the wire rod. The quality of the peeled state of the wire can be improved.

The wire feeder according to the invention of claim 18 is the coil winding machine according to claim 17, wherein the wire is fed across the wire, and the wire is fed across the wire, so that the feed amount is accurate.

The invention according to claim 19 is the coil winding machine according to claim 18, wherein at least one of the members sandwiching the wire has a rotatable circular shape and a friction member is provided on the surface thereof. Since the friction member is provided, the wire does not slip and an accurate feed amount of the wire can be obtained.

Further, at least one of the members sandwiching the wire is rotatable in a circular shape. Even if the friction member is worn down, by rotating the member, new friction can be obtained and the accurate wire feed amount can be obtained. Is always available and economical.

According to a twentieth aspect of the present invention, there is provided a coil device in which the coil according to the second aspect is sucked by a nozzle and then directly mounted on a printed circuit board. The process can be streamlined.

According to a twenty-first aspect of the present invention, there is provided a coil device for sucking the coil according to the second aspect with a nozzle, and thereafter inserting the coil into an embossed tape. The process can be streamlined.

(Embodiment 1) An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a front view of a coil winding machine for manufacturing a coil using the coil winding machine according to Embodiment 1 of the present invention.

As shown in FIG. 1, the coil winding machine according to the first embodiment is provided with a peeling tool 12 for peeling off the coating of the coated wire 11, and is provided downstream of and facing the peeling tool 12. A wire feeder 13 for feeding the wire 11 with the wire 13 sandwiched by the provided rollers 13a, and a bending portion 14 provided downstream of the wire feeder 13 and bending the wire 11 are provided.

Here, the bent portion 14 is configured as follows. That is, the line guide 1 is located downstream of the line feeder 13.
5 are provided on a straight line. Reference numeral 15a denotes a hole into which the wire 11 is inserted and guided, and reference numeral 16 denotes an outlet. A bending punch 17 has a hole 15a near the outlet 16.
Are provided at right angles to. The gap between the outlet 16 and the bending punch 17 is about 1.0 times the diameter of the wire 11. The bending punch 17 can be moved vertically in the drawing.

The roller 13a of the line feed section 13 is provided with two rollers 13a facing each other, and urethane rubber is adhered to the surface of the rollers 13a.
This is to increase the frictional resistance between the roller 13a and the wire 11 and, for example, by forming the roller 13a with iron,
The surface may be roughened.

The distance between the outlet 16 and the stripper 12 is set to a fixed distance determined by the shape of the coil. This distance is determined so that both ends of the coil are separated portions 11 a of the wire 11. In addition, in order to cope with a change in the shape of the coil, the control unit can change the shape so that the peeling portions 11a come at both ends of the coil.

Next, the operation of the coil winding machine will be described. First, as shown in FIG. 1A, the wire 11 is cut at a peeling portion 11 a.

Next, as shown in FIG.
The wire 11 is sent to the downstream side by the wire feeder 13 by the distance of the peeling portion 11a.

Next, as shown in FIG. 1C, the bending punch 17 is moved upward (A) to bend the wire 11 by 90 degrees.

Next, as shown in FIG. 1D, the bending punch 17 is moved downward (B) to return to the original state. Then, the wire 11 is fed by the wire feeder 13 by a predetermined distance.

Similarly, FIG. 1 (e), (f),
(G), (h), (i) and (j) and the wire 11 are fed out by a predetermined distance, and each time the wire 11 is bent by the bending punch 17 to obtain a coil having a quadrangular cross section.

FIG. 1 shows an example in which the angle between the wire guide 15 and the wire punch 17 is 90 degrees to form a coil having a square cross section. Here, in order to form a coil having a triangular cross section, the angle between the wire guide 15 and the wire punch 17 must be 6 degrees.
In order to form a coil having a pentagonal cross section, the angle between the wire guide 15 and the wire punch 17 must be 108 degrees.
Need to be in the degree. Here, the description will focus on the manufacture of a coil having a rectangular cross section.

FIG. 2A is a front view of the coil winding machine showing the relationship between the wire guide 15 and the bending punch 17 for preventing spring back of the coil. That is, the angle 19 of the wall 18 at the outlet 16 of the line guide 15 is set to approximately 15 degrees. In other words, the angle 19 between the hole 15a of the wire guide 15 and the bending punch 17 is set to 15 degrees, and the wire 11 is lifted in the direction A by the bending punch 17 and pressed. Is such that the bending angle of the wire 11 is approximately 90 degrees.

FIG. 2 (b) shows that after the bending punch 17 is raised in the direction A to secure the bending angle 19,
The wire 11 is further pressed in eight directions (C direction), and the bending angle 1
9 is being ensured.

FIG. 3 is a top view of the coil winding machine. FIG.
In the above, 15 is a line guide, and 17 is a bending punch. Reference numeral 20 denotes a cutting blade provided at right angles to the wire guide 15 and the bending punch 17, which cuts the winding start and end of the coil 21 to have a predetermined inductance value. It is.

FIG. 4 is a side view of a main part of the coil winding machine.
In FIG. 4, reference numeral 18 denotes a wall of the line guide 15, and reference numeral 17 denotes a bending punch. Reference numeral 20 denotes a cutting blade provided at right angles to the line guide 15 and the bending punch 17, respectively, and shows the relationship when viewed from the side. 22
Is a groove provided in the bending punch 17 for guiding the wire 11 to be pressed and bent. Since the groove 22 is provided in this manner, the wire 11 is stably guided. Also,
The groove 22 need not be provided.

FIG. 5A is a top view of the bending punch 17 and 22 is a groove. The size of this groove 22 is
It is about 1.2 times as large as. FIG. 5B shows a bending punch 1.
FIG. 7 is a side view of FIG. The groove 22 may be provided vertically along the vertical direction of the bending punch 17 as shown in this side view, or may be provided on a diagonal line of the bending punch. In this case, the winding pitch of the coil can be formed by guiding the wire 11 with the groove 22.

FIG. 6 is a side view of a main part of the wire guide 15 as viewed from the wall 18 surface. A guide 23 provided on the wall 18 guides the wire 11. This guide 23 is located at exit 16
And guides the wire 11 obliquely upward. The guide 23 allows the coil to have a stable winding pitch.

FIG. 7 is a front view of the vicinity of the tension portion 24 provided between the peeling tool 12 and the line feed portion 13. The tension portion 24 includes three fixed pulleys 2 provided above.
5a, 25b, and 25c, and two movable pulleys 26a and 26b that also function as weights. The number of the movable pulley 26a may be one. Fixed pulleys 25a, 2
5b and 25c have an "H" cross section, and the "H"
The wire 11 is made to pass through the bottom surface of the concave portion forming the shape. Therefore, they can be arranged in a staggered manner, which can contribute to downsizing.

Reference numeral 27 denotes a sensor provided above the tension portion 24, and reference numeral 28 denotes a sensor provided below the tension portion 24. The sensor 27 detects the top dead center of the movable pulleys 26a and 26b,
At 8, the bottom dead center of the movable pulleys 26a and 26b is detected. With this tension unit 24, the processing speed in the upstream and downstream can be adjusted. 29 is a reel around which the covered wire 11 is wound, and 30 is a fixed pulley. Therefore, the wire 11 wound on the reel 29 is supplied to the peeling tool 12 via the fixed pulley 30.

FIG. 8 is a diagram showing a cross-sectional shape of a coil manufactured by this coil winding machine. In the coil winding machine of the present invention, the feed amount of the wire 11 can be freely controlled by the control unit by the wire feed unit 13, so that coils having various shapes can be manufactured. FIG. 8 illustrates a coil having a rectangular cross section as a representative.

FIG. 8A shows a coil 31 having a square cross section.
FIG. In this case, the wire 1 by the wire feeder 13
1 are all equal. Thus, a coil 31 having a square cross section can be obtained. Reference numeral 31a denotes a soldered portion provided at an end of the coil 31.
Has been peeled off by the peeling tool 12. Then, reflow soldering is performed on the printed circuit board by the soldering portion 31a.

FIG. 8B shows a coil 32 having a square cross section.
FIG. In this case, the wire 1 by the wire feeder 13
1 are all equal. Thus, a coil 32 having a square cross section can be obtained. In this case coil 3
Only the second end 32b is longer than the other. Thus, when the coil 32 is mounted on the printed circuit board, the coil body can be lifted from the printed circuit board by 32c. Therefore, the coil 32 does not touch the pattern on the printed circuit board. On the printed circuit board, coil 3
2 can be freely provided with a pattern. Reference numeral 32 a denotes a soldered portion provided at an end of the coil 32, and the coating of the wire 11 is peeled off by the peeling tool 12. Then, reflow soldering is performed on the printed circuit board by the soldering portion 32a.

FIG. 8C shows a coil 33 having a rectangular cross section.
FIG. In this case, the wire 1 by the wire feeder 13
The feed amount of 1 alternates in length. This allows
A coil 33 having a rectangular cross section can be obtained. In this case, the horizontal dimension 33c is longer than the vertical dimension 33b of the coil 33. Therefore, the coil 33 requires a large area on the printed board, but the vertical dimension 33b is short, so that the printed board on which the coil is mounted can be made thin. Reference numeral 33a denotes a soldered portion provided at the end of the coil 33, and the coating of the wire 11 is peeled off by the peeling tool 12. Then, reflow soldering is performed on the printed circuit board by the soldering portion 33a.

FIG. 8D shows a coil 34 having a rectangular cross section.
FIG. In this case, the wire 1 by the wire feeder 13
The feed amount of 1 alternates in length. This allows
A coil 34 having a rectangular cross section can be obtained. In this case, the vertical dimension 34b of the coil 34 is longer than the horizontal dimension 34c. Therefore, the area occupied by the coil 34 on the printed circuit board is reduced. Reference numeral 34a denotes a soldered portion provided at the end of the coil 34, and the coating of the wire 11 is
2 peeled off. Then, reflow soldering is performed on the printed circuit board by the soldering portion 34a.

FIG. 8 (e) shows a coil 35 which is the same as FIG. 8 (a) except for the soldered portion 35a. Soldering part 35
Since a is large, reflow soldering can be reliably performed on the land of the printed circuit board.

FIG. 9A is a perspective view of a coil 31 having a rectangular cross section. 31a is a soldering part. FIG.
(B) is a perspective view of the coil 36 having a triangular cross section. 36
a is a soldering part. When the cross section is a triangle, the shape can be stabilized. Also, vertex 36
Since the position of b is stable, the position can be easily adjusted when suction is performed by a nozzle or the like. In this case, the hole 15a and the wall 1
The angle with 8 must be 60 degrees (in the case of an equilateral triangle).

The angle between the hole 15a and the wall 18 is 108
In other words, a coil having a pentagonal cross section can be manufactured. If the cross section is a regular pentagon, the performance is close to that of a substantially circular coil.

FIG. 10 is a front view of a coil device using the coil winding machine of the present invention. In FIG. 10, the coil device of the present invention suctions the coil 21 formed at the bent portion 14 of the coil winding machine by the suction nozzle 37 and directly mounts the coil 21 on the printed circuit board 38.

As described above, since the coil 21 can be manufactured and directly mounted on the printed circuit board 38, the process can be streamlined. Although not shown in FIG. 10, a tension portion 24 may be provided upstream of the peeling tool 12.

FIG. 11 is a front view of a coil device using a coil winding machine according to another embodiment of the present invention. In FIG. 11, a coil device according to the present invention includes a bent portion 1 of a coil winding machine.
The coil 21 formed in step 4 is sucked by the suction nozzle 37,
It is inserted into the embossed tape 39 as it is.

As described above, the coil 21 is manufactured and inserted directly into the embossed tape 39, and this is inserted into the reel 4
It is wound around 0 and completed as a reel part. This makes it possible to streamline the process. In addition,
Although not shown in FIG. 11, a tension portion 24 may be provided upstream of the peeling tool 12.

The coil according to the present invention has a VH
For F band H band (170MHz to 220MHz),
Or it was developed for the UHF band (470 MHz to 770 MHz).

(Embodiment 2) FIG. 12 shows Embodiment 2 of the present invention.
It is a front view of the coil winding machine in. In FIG. 12, a detection unit 53 that detects a peeling portion 11 a of the wire 11 is provided between the wire feeding unit 51 and the bending unit 52.

The line guide 54 forming the bent portion 52 is integrally provided with an extending portion 55 made of a conductor. The detecting unit 53 includes an extending portion 55, a roller 56 formed of a conductor facing the extending portion 55, and an arm 57 to which the roller 56 is attached and is rotatably provided. Have been.

In the detecting section 53, the wire 11 is inserted between the extending portion 55 and the roller 56, and the current flows through the arm 57, the roller 56, the peeling portion 11 a of the wire 11 and the extending portion 55, It is configured to detect the peeled portion 11a of the wire 11.

The detecting section 53 is not limited to the electrical detection, but can detect the difference between the thickness of the covering portion of the wire 11 and the thickness of the peeling portion 11a using a laser beam or the like.

The wire feeder 51 is formed by two members 58 and 59 which move with the wire 11 interposed therebetween to constitute a chuck. Urethane rubber is attached to the surfaces of the members 58 and 59 in order to increase the frictional resistance. In addition,
Instead of the urethane rubber, the surfaces of the members 58 and 59 may be roughened to increase the frictional resistance.

The member 58 is fixed. However, the member 59 is rotatable. Therefore, since the member 59 is rotatable, when the frictional resistance of the urethane rubber is reduced by use, the member 59 can be rotated, and a new frictional resistance can be obtained.

Although not shown here, a tension portion is provided upstream of the line feed portion 51.

Next, the operation of the coil winding machine according to the second embodiment will be described. First, in FIG. 12A, the roller 56 of the detection unit 53 is pressed against the wire 11 to release the separation unit 11a.
Is detected.

Next, as shown in FIG. 12B, the arm 57 is rotated in the direction D to separate the roller 56 from the wire 11. Then, the members 58 and 59 of the wire feeder 51 are used to hold the wire 11.
(60), and the bent portion 52 of the first embodiment
As described above, the wire 11 is bent to form a coil.

Next, as shown in FIG. 12C, after the covering portion 11a is detected by the roller 56, the peeling portion 11a of the wire 11 is cut by the cutting blade 61. Thereafter, the arm 57 is separated from the wire 11. Then, the members 58 and 59 of the wire feeder 51 are separated from the wire 11 and returned to the original position.
Is returned (62).

As described above, in the present embodiment, the detecting unit 5
3, the stripped portion 11a of the wire 11 can be detected, and the quality of the stripped state can be guaranteed. In addition, since the wire feed unit 51 feeds the wire 11 therebetween,
An accurate feed amount can be obtained.

[0075]

As described above, the coil winding machine of the present invention is
A wire feeder that sends a wire, and a wire guide that is provided downstream of the wire feeder and guides the wire straight.
A bending punch provided near the outlet of the wire guide and bending the wire linearly by pressing the wire fed from the outlet, and a control unit that controls the wire feeding unit and the bending punch, Sending out the wire rod at the wire feeder, stopping the wire rod when the predetermined dimension is derived from the outlet of the wire rod, then moving the bending punch to bend the wire rod,
Next, the bending punch is returned to its original state, and this operation is repeated a predetermined number of times to form a coil. Since the coil is formed by bending a wire fed linearly from the outlet, the same coil is formed. In the process, the coil body and the soldered portion can be formed. Therefore, unlike the conventional method, it is not necessary to make the soldered part in another process again,
Production efficiency is improved.

Further, by controlling the feed amount of the wire rod by the wire feed unit by the control unit, the coil shape can be freely changed. Further, the type of the coil can be easily switched.

Further, since the coil is a surface mountable coil and has a flat portion by bending, a coil which can be stably mounted can be obtained. Also, adjustment can be made easily as with a conventional coil.

[Brief description of the drawings]

FIG. 1A is a front view showing a first state of bending of a coil winding machine according to a first embodiment of the present invention. FIG. 1B is a front view showing a second state of bending. ) Is a front view showing a third state of the same bending. (D) is a front view showing a fourth state of the same bending. (E) is a front view showing a fifth state of the same bending. A front view showing a sixth state of the folding, (g) is a front view showing a seventh state of the bending, (h) is a front view showing an eighth state of the folding, (i) is a front view showing the same state. The front view showing the ninth state of bending is a front view showing the tenth state of bending.

FIG. 2A is a front view showing a first example of details of bending of the coil winding machine. FIG. 2B is a front view showing a second example of details of bending.

FIG. 3 is a top view of the same coil winding machine.

FIG. 4 is a side view of a main part of the coil winding machine.

FIG. 5A is a top view of a bending punch forming a bent portion of the coil, and FIG. 5B is a side view of the bending punch.

FIG. 6 is a side view of a wire guide forming a bent portion of the coil.

FIG. 7 is a front view of the coil winding machine including the tension unit.

FIG. 8A is a side view showing a cross-sectional shape of a coil according to a first example manufactured by the coil winding machine; FIG. 8B is a side view showing a cross-sectional shape of a coil according to the second example; (c) is a side view showing a cross-sectional shape of the coil according to the third example. (d) is a side view showing a cross-sectional shape of the coil according to the fourth example. (e) is a side view showing the cross-sectional shape of the coil according to the fifth example. Side view showing cross-sectional shape

FIG. 9A is a perspective view of a coil according to a first example manufactured by the coil winding machine; FIG. 9B is a perspective view of a coil according to the second example;

FIG. 10 is a front view of a coil device using the coil winding machine of the present invention.

FIG. 11 is a front view of another example of the coil device.

12A is a front view illustrating a first state of the coil winding machine according to the second embodiment of the present invention. FIG. 12B is a front view illustrating the second state, and FIG. Front view showing a third state

FIG. 13 is a perspective view of a coil manufactured by a conventional coil winding machine.

FIG. 14 is a perspective view of another example of the coil.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Wire rod 13 Wire feed part 15 Wire guide 16 Exit 17 Bending punch

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Tsutomu Kada 1006 Kadoma Kadoma, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (72) Inventor Haruki Owaki 1006 Kadoma Kadoma, Kadoma City Osaka Pref. Terms (reference) 5E002 AA06 AA14 AA19 AC01 5E062 FF01 FG15

Claims (21)

[Claims] 1. A wire feeder for feeding a wire, a wire guide provided downstream of the wire feeder and guiding the wire linearly, and provided near an outlet of the wire guide and sent out from the outlet. A bending punch for bending the wire in a straight line by pressing the wire, and a control unit for controlling the wire feeding unit and the bending punch. When the predetermined dimension is derived from the above, the derivation of the wire rod is stopped, then the bending punch is moved to bend the wire rod, and then the bending punch is returned to its original state. A coil winding machine that forms a coil by repeating a number of times. 2. The coil winding machine according to claim 1, further comprising a cutting blade provided near the outlet and cutting the wire. 3. The coil winding machine according to claim 1, wherein the bending punch is provided with a groove for guiding a wire. 4. The guide according to claim 1, wherein the wire is bent by pressing the wire against a wall provided at the outlet with a bending punch, and the wall is provided with a guide for forming a winding pitch of the coil. Coil winding machine. 5. The coil winding machine according to claim 1, further comprising a stripping tool for stripping the coating of the wire rod upstream of the wire feeding unit, and a distance between the stripping tool and the outlet having a predetermined dimension. 6. The coil winding machine according to claim 5, wherein the distance between the peeling tool and the outlet can be changed by an instruction from the control unit. 7. The coil winding machine according to claim 5, wherein a tension section for adjusting a difference in processing speed between the linear feeding section and the stripping tool is provided. 8. The coil winding machine according to claim 1, wherein the wire feeder is configured to feed the wire by rollers provided to face each other. 9. The coil winding machine according to claim 8, wherein a surface of the roller is formed of a friction member. 10. The coil winding machine according to claim 1, wherein the wire feed section is controlled to bend the wire length so that the coil has a triangular cross-sectional shape. 11. The coil winding machine according to claim 1, wherein the wire feeding section controls the wire feed length to be bent so that the cross-sectional shape of the coil becomes quadrangular. 12. The coil winding machine according to claim 1, wherein the wire feed section controls the feed length of the wire so as to be bent so that the cross-sectional shape of the coil becomes a horizontally long rectangle. 13. The coil winding machine according to claim 1, wherein the wire feeding section controls the feed length of the wire so as to bend the cross section of the coil into a vertically long rectangular shape. 14. The coil winding machine according to claim 1, wherein the feed length of the wire is controlled by the wire feed portion so that only the both ends of the coil become longer. 15. The coil winding machine according to claim 1, wherein the coil is bent so as to have a pentagonal cross section. 16. The coil winding machine according to claim 1, wherein the wire is bent by approximately 15 degrees more than the bending angle of the wire. 17. A peeling tool for peeling off the coating of the wire rod is provided upstream of the wire feeder, and a detector for detecting peeling of the wire rod is provided between the wire feeder and the wire guide. The coil winding machine according to claim 1, wherein a tension unit is provided between the coil feeding unit and the wire feeding unit. 18. The coil winding machine according to claim 17, wherein the wire feed section feeds the wire material therebetween. 19. The coil winding machine according to claim 18, wherein at least one of the members sandwiching the wire has a rotatable circular shape and a friction member is provided on a surface thereof. 20. A coil device which sucks the coil according to claim 2 with a nozzle and then directly mounts the coil on a printed circuit board. 21. A coil device for sucking the coil according to claim 2 with a nozzle, and thereafter inserting the coil into an embossed tape.