JP2000164446A - Core structure for coil winding machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a core structure for coil winding machine from which a coil can be taken out easily from a core after the winding of an extremely thin coil is completed. SOLUTION: A coil winding section 8a is formed at the front end section of a core 8 which is rotated by means of a motor and, at the same time, a protrusion 8b is formed around the core 8 continuously from the winding section 8a. Then a jig cap 10 which is put on the protrusion 8b and can be slid in the axial direction of the core 8 on the protrusion 8b is provided. After a coil is wound around the coil winding section 8a, the wound coil is separated and taken out from the core 8 by separating the jig cap 10 from the coil by moving the cap 10 in the axial direction against the coil, and then, moving the core 8 in the axial direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a core structure of a coil winding machine for a coil formed by laminating and winding metal wires or copper wires having a rectangular cross section and a round cross section. The present invention relates to a core structure of a coil winding machine that can easily take out a coil from a core without deforming the coil after an extremely thin coil has been wound.

[0002]

2. Description of the Related Art A method for manufacturing a coil by laminating and winding metal wires or copper wires having a rectangular or round cross section is disclosed in JP-A-61-182209, JP-A-3-70110, and JP-A-6-132155. And the like are well known. The schematic configuration of such a coil winding machine will be described with reference to FIG. 11 and FIG. 12. FIG. 11 is a front view of the coil winding machine, and FIG. In the figure, reference numeral 101 denotes a frame of a coil winding machine. The frame 101 is provided with a motor 102. The output shaft of the motor and a pulley on the side of a driven transmission shaft 104 supported by a support member 103 on the frame. A first belt 106 is wound between the first belt 105 and the supporting member 1.
03 and the driven transmission shaft 104
The second belt 108 is wound between them. Therefore, when the motor 102 rotates, the rotating shaft 107 and the driven transmission shaft 104 rotate. A positioning jig 110 is provided at the tip of the rotating shaft 107.

The other end of the driven transmission shaft 104 is supported by a tail plate 109, and a belt is provided between the tip of the driven transmission shaft 104 and a rotary shaft 112 supported by the tail plate 109. 113 is wound, and the shaft 112 can be rotated by the rotation of the driven transmission shaft 104. A core 111 is attached to the tip of the shaft 112, and a jig cap 117 is provided on the core 111 so as to be slidable in the axial direction of the core 111.
The jig cap 117 is disposed so as to face the positioning jig 110, and a coil can be wound around a core 111 between the positioning jig 110 and the jig cap 117. The jig cap 117
Is configured to be movable in the axial direction by an air cylinder 130, and by operating the air cylinder 130, the jig cap 1 is attached to the positioning jig 110.
17 can be separated. The core 11
1 is connected to the air cylinders 120 and 131, and moves the first stage in the axial direction to the air cylinders 131.
In addition, the movement of the second stage in the axial direction can be performed by the air cylinder 120.

[0004] The coil winding operation by the coil winding machine having the above configuration will be described. FIG. 12 is a partially sectional view showing the relationship between the positioning jig 110 and the jig cap 117 in an enlarged manner. The operation of winding the coil by the coil winding machine is as follows. First, as shown in FIG.
To contact the positioning jig 110. Next, the jig cap 117 is wound by the air cylinder 130 onto the core 1.
11, the distance S between the end face of the positioning jig 110 and the end face of the jig cap 117 is set. This distance S
Is the winding width of the coil. The leading end of the coil winding is fixed to the core 111 by an appropriate means (for example, held in a slit formed on the core 111), and in this state, the core 111 is rotated by the rotation shaft 112 (see FIG. 11). 12A, the copper wire sent from the direction perpendicular to the paper of FIG. 12A is wound on the core 111, and then the coil winding is cut by a cutter (not shown) to form a coil. The wound coil is firmly adhered to the copper wire by an adhesive applied to the outer periphery of the copper wire and melted and solidified by hot air, thereby preventing the coil from being deformed.

[0005] When the winding of the coil is completed, FIG.
As shown in (b), the core 111 and the jig cap 117 are moved by the air cylinder 120 and the air cylinder 130 to separate the positioning jig 110, and then the jig cap 117 is moved as shown in FIG. The coil is further moved rightward by the air cylinder 130 to separate the end face of the wound coil from the end face of the jig cap. Then, FIG.
As shown in FIG. 2 (d), the core 111 is
0, the coil is moved rightward in the figure. As a result, only the core 111 moves rightward with the end face of the jig cap 117 prohibiting the rightward movement in the figure. The coil wound on the core 111 is the core 11
1 and the coil can be taken out.

[0006]

However, recently,
With the miniaturization of various electric devices, the coil width S used for them has been shifting to ultra-thin, and the following problems have occurred in the production of the conventional coil winding machines as described above. ing. In other words, recent coils have a small winding wire diameter, a large number of layers with few rows of windings, and a large coil diameter. In other words, as shown in FIG. 12D, when only the core 111 is moved rightward in the figure by the air cylinder 120 and only the coil is separated and dropped using the jig cap 117 as an operation point, the jig cap 1
There is a disadvantage that the coil is deformed by the action of 17. This deformation is more remarkable as the coil width is smaller.

[0007] The winding of the coil is completed, and FIG.
As shown in (b), the core 111 and the jig cap are moved by the air cylinder 120 and the air cylinder 130 to separate the coil and the positioning jig 110, and then the jig cap 117 is further moved by the air cylinder 130. When moving to the right to separate the end face of the wound coil from the end face of the jig cap,
In the state of (c), if the end surface of the wound coil and the end surface of the jig cap are stuck together by an adhesive or the like, as shown in FIG.
17 is moved on the core 111 in a state where the coil and the jig cap 117 are attached to each other.
Thereafter, as shown in FIG. 12 (d), only the core 111 is moved rightward in the drawing by the air cylinder 120, and the jig cap 1 is moved.
When only the coil is to be separated from the core 111 using the point 17 as an action point, the coil is adhered to the end face of the jig cap 117 with an adhesive.
As shown in FIG. 2 (d), only the coil cannot be separated and dropped, and it is necessary to perform the coil take-out operation by the push-out mechanism.
This will deform the coil.

In view of the above, according to the present invention, a projecting portion or a large number of projecting portions are formed on a winding core side, and a jig cap is slidably fitted to the projecting portion (comb-like shape) to thereby provide a coil. A coil winding machine that prohibits the coil from moving due to the movement of the jig cap at the time of removal, and can take out the wound coil from the core without any deformation without difficulty An object of the present invention is to provide a core structure and solve the above problems.

[0009]

The technical solution adopted by the present invention to achieve the above object is to form a coil winding portion at the tip of a winding core rotated by a motor and to continuously connect the coil winding portion to the winding portion. A jig cap formed around the winding core so as to be fitted into the projection and slidable in the axial direction of the winding core. The tool cap is moved in the axial direction with respect to the winding core, the jig cap and the coil are separated, and then the winding core is moved in the axial direction to separate the coil whose winding has been completed from the winding core. A winding core structure of a coil winding machine characterized in that the winding core is rotated by a motor, and a coil width adjusting jig slidably mounted in the axial direction of the winding core. A projection formed on the coil width adjusting jig Fixing means for positioning and fixing the coil width adjusting jig to the core, and a jig cap slidably fitted to the protrusion of the coil width adjusting jig, wherein the coil is attached to the core. After positioning and fixing the width adjusting jig, further attaching a jig cap to the coil width adjusting jig, and winding the coil around the core, the jig cap is axially moved with respect to the coil width adjusting jig. Move to separate the jig cap and the coil, and then move the winding core and the coil width adjustment jig in the axial direction to separate the coil whose winding has been completed and the coil width adjustment jig, and wind up A coil core structure of a coil winding machine, wherein a coil can be separated and taken out from the core.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of a coil winding machine according to the present invention will be described below with reference to the drawings. FIG. 1 is an overall front view of a coil winding machine according to the present embodiment, and FIG. FIG. 3 is a perspective view of the jig cap and the core of the X portion, FIG. 3 is a perspective view of the assembly of the jig cap and the core, and FIG. 4A is a partially enlarged side sectional view of the X portion in FIG. (B) is an assembly front view of the jig cap and the core. In FIG. 1, 1 is a gantry, 2 is a rotation drive motor, 3 and 4 are belts, 5 is a drive connection shaft, 6
Is a jig cap control motor, 7 is a positioning jig, 8 is a core, 9 is a core shaft, 10 is a jig cap, 11 is a main shaft,
12 is a spring, 13 is a tail plate, 14 is a micrometer for adjusting the coil width, 15 is a belt, 16 is a ball screw, 17 is a motor for controlling the core, 18 is a positioning, and the basic configuration is the same as the conventional coil winding. Configuration.

In this coil winding machine, the jig cap control motor 6 and the core control motor 17 are driven to drive the core 8,
The jig cap 10 is set in a predetermined positional relationship, and the coil width S is set. When the rotation drive motor 2 is driven, the positioning jig 7, the core shaft 9,
The jig cap 10 rotates synchronously, and the coil winding supplied from the direction perpendicular to the paper surface around the core 8 in the gap (corresponding to the coil width) S formed between the positioning jig 7 and the jig cap 10. The wire is wound to form a coil. Note that the jig cap 10 is rotatably, slidably and fixedly mounted on the main shaft 11, and the jig cap control motor 6 allows the jig cap 10 to slide on the main shaft 11 to select the coil width. I have. This operation is the same as that of the conventional coil winding machine. In the above embodiment, the relationship between the winding core 9 and the jig cap 10 indicated by the X portion in FIG.
This will be described in more detail with reference to FIG.

As shown in FIG. 2, a core 8 is formed at the tip of a core shaft 9 which is rotated via belts 3, 4, and 15 in FIG. A coil-shaped winding portion 8a is formed, and a large number of comb-shaped protrusions 8b are formed continuously with the winding portion 8a. The cross-sectional area of the protruding portion 8b is formed so as to be approximately half the peeled surface between the coil and the jig cap 10. A jig cap 10 slidably attached to the projection 8b of the core 8 has a circular shape. A taper 10b is formed around the jig cap 10 to facilitate the introduction of a coil. 8a and a through-hole 10a that fits into the comb-shaped protrusion 8b. When the jig cap 10 is fitted to the core 8, the assembled state shown in FIG. 3 is obtained. Further, the state where the core 8 and the jig cap 10 are attached to the coil winder is shown in FIG. Becomes In this state, the end face of the jig cap 10 and the projection 8b
End faces are flush with each other.

The coil winding operation by the positioning jig 7 having the above configuration, the core 8 and the jig cap 10 is shown in FIG.
This will be described in more detail with reference to FIGS. As described above, in this coil winding machine, the core control motor 17 is operated to move the core shaft 9 to the left in the figure, and the positioning jig 7 and the coil winding portion 8a of the core 8 are brought into contact with each other. The jig cap 1 on the core 8 is operated by operating the jig cap control motor 6.
The jig cap 10 is moved to the left on the core 8 and the position of the jig cap 10 is controlled so that the end surface of the projection 8 b on the core 8 side is flush with the left end surface of the jig cap 10 in the drawing. Thus, a coil width S is formed between the positioning jig 7 and the jig cap 10.

When the motor is driven to start the coil winding operation, the positioning jig 7, the belts 3, 4, and 1 are driven.
The core shaft 9 and the core 8 integral therewith are rotated through the coil 5, and around a coil winding portion 8 a in a gap S formed between the positioning jig 7 and the jig cap 10 from a direction perpendicular to the paper surface. The supplied coil winding is wound up to form a coil, and the winding ends when the coil diameter reaches a predetermined diameter. This state is shown in FIG. When the winding of the coil is completed, the winding core 8 and the jig cap 10 are moved by the winding core control motor 17 and the jig cap control motor 6 to separate the coil from the positioning jig 7 as shown in FIG. I do.

Subsequently, as shown in FIG.
0 is moved to the left on the winding core 8 by operating the jig cap control motor 6. At this time, in the present embodiment, since the projection 8b is formed on the winding core 8, the conventional example shown in FIG.
As described in 2 (e), even if the jig cap 10 and the end face of the coil are stuck to each other with an adhesive or the like, the movement of the coil is prevented by the projection 8b. Only the peeling movement can be reliably performed, and the operation of peeling the coil from the jig cap 10 as in the conventional example is eliminated. Also, a projection 8b formed on the core
Is formed so that the cross-sectional area of the coil is approximately half of the peeling surface between the coil and the jig cap. Therefore, the peeling force between the coil and the jig when the jig cap 10 is moved is about half of the conventional one. Even in the case of a thin coil, the coil is prevented from being deformed, and the occurrence of the conventional defective rate can be greatly reduced. Next, as shown in FIG.
Is operated to move the core 8 rightward in the figure, the coil moves to the right only with the end face of the jig cap 10 prohibiting the rightward movement in the figure, As a result, the coil wound on the core 8 falls off the core 8,
The coil can be taken out.

Next, the second embodiment of the coil winding machine according to the present invention will be described.
An embodiment will be described with reference to FIG. In the first embodiment described above, the winding width of the coil is uniquely set according to the setting of the coil winding portion 8a and the protrusion 8b.
In order to freely change the coil width, it is necessary to use a core whose core matches the coil width, which is troublesome. For this reason, the second embodiment is characterized in that the coil width can be freely set.

FIG. 9A shows a winding core 8 according to the second embodiment.
(B) is a front view and a side view of the coil width adjusting jig 20, and (c) is a plan view and a front view of the winding core. A plate-shaped coil winding portion 8a 'having a predetermined length is formed on the winding core 8, and the coil width adjusting jig 20 can be fitted into the coil winding portion 8a'. The coil width adjusting jig 20 has a hole 23 formed at the center thereof, which can penetrate the coil winding portion 8a ', and a number of comb-shaped protrusions 21 are formed around the hole 23. The jig for adjusting the coil width is fitted into the coil winding portion 8a 'of the core, and the coil width S is set as shown in FIG. A jig cap 10 is slidably fitted to the coil width adjusting jig 20, and a coil width S that can be arbitrarily selected by adjusting the coil width adjusting jig is set to the core 8. By using the core 8, the coil width can be freely selected and the completed coil can be easily taken out while preventing the coil deformation as in the first embodiment.

In the above-described embodiment, the coil winding portion 8a is formed in a plate shape. However, the present invention is not limited to the plate shape, and various shapes such as a triangle and a circle can be adopted. Also, if the projections formed on these winding portions can be reduced to approximately half the area in contact with the end face of the coil, various projections as shown in FIGS. can do. Since the protrusion formed on the coil winding portion is formed in a comb shape, the bonding portion between the coil end surface and the jig cap can be separated by a number of uneven portions, so that the coil can be further prevented from being deformed. . Further, in the above-described embodiment, the case where the protrusion is formed on the coil winding portion (the winding core side) has been described. However, this protrusion is provided on the jig cap side, and the winding core side has a shape corresponding thereto. Of course you can. Furthermore, the present invention may be embodied in various other forms without departing from its spirit or essential characteristics. In addition, the above-described embodiment is merely an example in all aspects, and should not be construed as limiting.

[0019]

As described in detail above, according to the present invention,
A protrusion is formed on the winding core side, and the jig cap is slidably fitted to this protrusion, so that the deformation of the coil at the time of removal using the jig cap of the completed coil as the point of action is ensured. Can be prevented. Also, by setting the cross-sectional area of the protrusion formed on the core to approximately half the contact area between the coil and the jig cap, the end face of the jig cap and the coil are temporarily attached to each other by an adhesive or the like. Even so, the coil and the jig cap can be reliably separated without deforming the coil. As a result, it is possible to eliminate the work of separating the jig cap and the coil as in the conventional case, and furthermore, it is possible to prevent the deformation of the coil even in the case of a thin coil, thereby greatly reducing the occurrence of the conventional defective rate. be able to. Further, by using the coil width adjusting jig, the coil width can be set freely, and the deformation at the time of taking out the completed coil can be reliably prevented. And other excellent effects can be achieved.

[Brief description of the drawings]

FIG. 1 is a front overall configuration diagram of a coil winding machine as an embodiment.

FIG. 2 is a perspective view of a jig cap and a core of an X part in FIG. 1;

FIG. 3 is an assembled perspective view of the jig cap and the core.

4A is a partially enlarged side sectional view of a portion X in FIG. 1, and FIG. 4B is a front view of assembling a jig cap and a core.

FIG. 5 is a partial cross-sectional view of the jig cap and the core of the present invention at the end of coil winding.

FIG. 6 is a partial cross-sectional view after the completion of coil winding and after movement of a winding core and a jig cap.

FIG. 7 is a partial cross-sectional view showing a state where only the jig cap is moved and separated from the coil.

FIG. 8 is a partial cross-sectional view showing a state where a winding core is moved to take out a completed coil winding.

9A is a front view of the assembled state of the winding core and the coil width adjusting jig according to the second embodiment, and FIG. 9B is a front view and a side view of the coil width adjusting jig 20. (C) is a plan view and a front view of the core.

FIG. 10 is a view showing another example of a winding core.

FIG. 11 is a front view of a conventional coil winding machine.

FIG. 12 is a partial cross-sectional view showing a state when coil winding by a conventional jig cap and a core is completed, when a jig cap is moved, and when a core is moved.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Mount 2 Rotation drive motor 3, 4 Belt 5 Drive connection shaft 6 Jig cap control motor 7 Positioning jig 8 Core 8a Winding part 8b Projection (many comb-shaped projections) 9 Core shaft 10 Jig cap 10a Through hole 11 Spindle 12 Spring 13 Tail plate 14 Micrometer for coil width adjustment 15 Belt 16 Ball screw 17 Motor for core control 18 Positioning S Coil width

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Kazuyuki Chiba 1-20-10 Machiya, Urawa-shi, Saitama F-term in Japan Savic Co., Ltd. (reference) 5E002 AA02 AA04 AA05

Claims (6)

[Claims] 1. An end portion of a winding core rotated by a motor,
Forming a coil winding portion and forming a protrusion around the core continuously with the winding portion, comprising a jig cap fitted to the protrusion and slidable in the axial direction of the core, After winding the coil around the coil winding unit, moving the jig cap in the axial direction with respect to the core, separating the jig cap and the coil, and then moving the core in the axial direction. The winding core structure of the coil winding machine is characterized in that the winding completed coil can be separated and taken out from the winding core. 2. The coil winding according to claim 1, wherein the protrusion is formed so as to be approximately の of a contact area between the wound coil and the jig cap. Machine core structure. 3. The core structure of a coil winding machine according to claim 2, wherein said projection is formed in a comb-teeth shape. 4. A winding core rotated by a motor, a coil width adjusting jig slidably mounted in the axial direction of the winding core, a projection formed on the coil width adjusting jig, and a coil width adjusting jig. Fixing means for positioning and fixing the jig to the core, and a jig cap slidably fitted to the protrusion of the coil width adjustment jig, wherein the coil width adjustment jig is attached to the core. After positioning and fixing, further attaching a jig cap to the coil width adjusting jig and winding the coil around the core, the jig is moved in the axial direction with respect to the coil width adjusting jig. By separating the cap and the coil, and then moving the winding core and the coil width adjusting jig in the axial direction, the coil whose winding has been completed and the coil width adjusting jig are separated, and the winding coil is moved to the winding core. You can take it out Core structure of the coil winding machine, characterized in that the. 5. The coil winding according to claim 4, wherein the projecting portion is formed so as to have a contact area between the wound coil and the jig cap approximately 略. Machine core structure. 6. The core structure of a coil winding machine according to claim 5, wherein said projection is formed in a comb-like shape.