JPH08124778A - Winding machine - Google Patents

Abstract

PURPOSE: To provide a winding machine wherein the greater part of a winding work of a wire around a ring-shaped core is mechanized, and, e.g. a coil of high quality can be molded. CONSTITUTION: The title winding machine consists of the following; a chuck device 12 which presses a part of the peripheral surface of a ring-shaped core C, holds it to be rotatable, and can rotate it by only a specified winding pitch, side surface shaping device 19, 20 which are made to abut against and isolated from the core and pressure-mold a wire passing the side part of the core, an outer peripheral surface shaping device which is made to abut against and isolated from the peripheral surface part of the core and pressure-molds a wire W passing the peripheral surface part of the core, a driving mechanism which properly operates each of the molding equipments, and a trestle 11 which supports the equipments and is intermittently rotated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a winding device, and more particularly to a winding device for winding a coil wire around a toroidal core made of, for example, ferrite or amorphous metal.

[0002]

2. Description of the Related Art Conventionally, a winding device for winding a coil wire around a toroidal core has been disclosed in Japanese Patent Publication No. 62-5393.
The one disclosed in Japanese Patent Publication No. 0 is known. In the winding device disclosed in this publication, basically, a wire is sequentially wound around the core by rotating the core 180 degrees around a turning axis along an imaginary axis extending radially through the center point. It was done like this.

[0003]

However, the conventional toroidal type core winding device only winds the coil wire while rotating the core 180 degrees as described above, and holds the core or winds it around the core. In addition, there is no proposal for various specific automatic devices such as coil wire forming, and therefore, it is impossible to form a high quality coil without resorting to many operations.

The object of the present invention is to solve the above-mentioned conventional problems. Most of the work of winding a wire on a ring-shaped core is mechanized, and a high-quality coil, for example, can be formed. The present invention is to provide a winding device.

[0005]

The present invention is a winding device, which is configured as follows in order to solve the above-mentioned technical problems. That is, the present invention is a winding device for winding wire rods for a coil around a ring-shaped core at a predetermined pitch in the circumferential direction, and rotatably holds a part of the peripheral surface of the ring-shaped core C. Of the chucking device 12, a driving device for rotating the ring-shaped core C rotatably held by the chucking device 12 by a predetermined winding pitch, and the ring-shaped core C supported by the chucking device 12. Supported by side face forming devices 19 and 20, which are arranged on both sides, press-mold the wire W that has come into contact with and separated from the ring-shaped core C and passed through the side parts of the ring-shaped core C, and the chuck device 12. The wire rod W, which is attached so as to face the peripheral surface portion of the ring-shaped core C, abuts and separates from the peripheral surface portion of the ring-shaped core C, and passes through the peripheral surface portion of the ring-shaped core C, is press-molded. Peripheral surface molding And a drive mechanism for appropriately operating the side surface molding devices 19 and 20 and the outer peripheral surface molding device 27, the chuck device 12, the driving device, the side surface molding devices 19 and 20, the outer peripheral surface molding device 27, and A rotatable mount 11 that supports the drive mechanism.
And rotation means for intermittently rotating the gantry 11 every 180 degrees. Less than,
Each component will be described individually.

(Chuck Device) The chuck device 12 rotatably supports the ring-shaped core C when the coil wire W is wound around the ring-shaped core C. As the supporting position, the outer peripheral surface of the ring portion other than the ring portion around which the wire rod W is wound is used because the coil wire rod W is wound around the center of the ring-shaped core and is wound around the ring portion. Then, the chuck device 12 rotates the core C by one winding pitch each time the coil wire W is wound around the ring-shaped core C, and controls so that the wire winding ring portion of the core C is always at a predetermined position. Has been done.

(Driving device) A driving device is a device for intermittently rotating the ring-shaped core supported by the chuck device 12 at every winding pitch. This drive device can be composed of an electric motor, for example, a pulse motor, a servomotor, and a means 16 for transmitting the rotational force to the ring-shaped core.

(Side Side Forming Apparatus) The ring portion of the ring-shaped core C usually has a substantially rectangular cross section. Therefore, when the coil wire W is wound, the wire W is formed at the corner portion between the outer peripheral surface and the side surface. It does not bend in an exact manner, so that the wire rod passing through the outer peripheral surface and the side surface of the ring-shaped core C bulges. It is the side forming devices 19 and 20 that correct this.
Is. In other words, the pressing device presses the wire W against the side surface of the ring-shaped core C to bend and shape the wire W along the corners. Such side molding devices 19 and 20 are installed on both sides of the ring-shaped core C, and apply a pressing force by sandwiching the ring-shaped core C from both sides.

(Outer peripheral surface forming device) The outer peripheral surface forming device 27 is also similar to the side surface forming devices 19 and 20 described above, in that the wire W wound around the ring portion is pressed against the outer peripheral surface of the ring-shaped core C to form a corner. It is to obtain the bend corresponding to the part.

(Drive Mechanism) The side surface forming devices 19 and 20 and the outer peripheral surface forming device 27 are basically driven by the rotational force of the motor being given by the link mechanism or the cam mechanisms 43 and 46. In addition to the force, various forces such as electromagnetic force and mechanism can be used.

(Platform) The pedestal 11 includes the chuck device 12 described above, a drive device, and side molding devices 19 and 2.
0 and the outer peripheral surface forming device 27, and a rotating body for rotating necessary components such as a drive mechanism. This stand 1
1 is actually two discs 11a arranged vertically, 1
1b is connected and integrated with a plurality of columns 11c to form an upper disc 1
The above-mentioned winding work is performed on the surface of 1a, and the lower disk 11b
Above the upper disk 11a, a space between the upper disk 11a and a drive unit, a drive mechanism, and other necessary power unit and transmission mechanism unit are installed.

(Intermittent Rotating Stand) The above-mentioned stand 11
Rotates 180 degrees each time the coil wire W is wound once around the ring-shaped core C held by the chuck device 12. The rotation of the gantry 11 is to rotate the ring-shaped core C held on the upper disk 11a every 180 degrees to automatically wind the wire W. Such rotation of the gantry 11 may be performed while electrically or electronically controlling the amount of rotation by an electric motor, or may be controlled by using an intermittent rotation mechanism such as a Geneva gear and a gear. it can.

<Additional Configuration in the Present Invention> The winding device of the present invention is composed of the above-mentioned essential components, but is also established in the following specific cases. The additional components are at least three support rollers 13a, 13b, 13c installed so that the chuck device 12 is arranged at intervals in the circumferential direction of the ring-shaped core C in the holding position, and the drive. A feed roller 14 interlocked with the apparatus, a plurality of idle rollers 15, and a belt 16 wound around these rollers,
Two of the three support rollers are the chuck device 1.
When 2 is viewed from the front, they are positioned vertically and are spaced apart from each other by a distance L, and the distance L is supported so as to be expandable and contractible.

Further, the side surface forming devices 19 and 20 are divided into two separate members 19a, 19b and 2 which are in spaced contact with each other.
0a, 20b, which is located in the mating surface of these two split members, inserts the wire W supplied from the outside into the inside of the ring-shaped core C from the outside of the side forming devices 19, 20 and Insertion openings 21 and 22 used when pulling out the wire W from the inside of the ring-shaped core C to the outside of the side surface molding devices 19 and 20 are provided, and the wire W that has passed through the insertion opening is used as the ring-shaped core. It is characterized in that the split member is opened so as to be released to the winding outer peripheral surface side of the ring-shaped core C from the insertion openings of the side surface forming devices 19 and 20 so as to be wound around C to form a gap portion.

[0015]

According to the winding device of the present invention, first, the ring-shaped core C around which the coil wire W is wound is rotatably supported by the chuck device 12. Specifically, the chuck device 12 is interlocked with at least three support rollers 13a, 13b, 13c and a drive device which are installed so as to be spaced apart in the circumferential direction of the ring-shaped core C in the holding position. A feed roller 14, a plurality of idle rollers 15, and a belt 16 wound around these rollers, and the ring-shaped core C includes two support rollers 13a and 13b.
The belt 16 passing between the outer side and the other supporting roller 1
It is sandwiched between these support rollers so as to be pushed toward 3c.

At this time, the distance L between the two support rollers 13a and 13b that substantially holds the ring-shaped core C by sandwiching it.
Is set to be smaller than the diameter of the ring-shaped core C, and is supported so as to be movable in directions opposite to each other, in other words, to be openable so as to increase the interval L, and this setting is made by a spring force or the like. A return force to return to the interval is given. Therefore, the ring-shaped core C set inside the two support rollers by pushing them apart is clamped to such an extent that they cannot be easily disengaged by the restoring force of the support rollers to the predetermined position.

As a result, the ring-shaped core C exposes a part of the outer peripheral surface of the belt 16 except the exposed outer peripheral surface.
Is circumscribed. The belt 16 is intermittently moved by the feed roller 14 which is interlocked with the driving device, and thus the ring-shaped core C is intermittently rotated. At this time, the belt 16 is intermittently driven by a moving amount that rotates the ring-shaped core C by one winding pitch, and this can be controlled by, for example, an electric motor that rotates the feed roller 14.

When the ring-shaped core C is set, the tip of the coil wire W is passed from the side of the core C into the ring and pulled out from the opposite side. Then, when the gantry 11 is turned 180 degrees with the position of the tip W1 of the wire W fixed, the wire W is wound half-turned from one side surface to the outer peripheral surface of the ring-shaped core C. Here, the pair of side surface forming devices 19 and 20 arranged on both sides of the ring-shaped core C move to the side portions of the core to press the wire material to the side surfaces of the core.

At the same time, the outer peripheral surface forming device 27 also moves to the outer peripheral surface of the core at the same time to press the wire W against the outer peripheral surface of the core, whereby the corner portion forming the boundary between the one side surface and the outer peripheral surface. The wire rod W is accurately bent and shaped so that the wire W is brought into close contact with one side surface and the outer peripheral surface. After that, the pair of side surface forming devices 19 and 20 and the outer peripheral surface forming device 2
7 is separated from the ring-shaped core C, the wire W is passed through the inside of the ring-shaped core C again and pulled out to the opposite side, whereby the wire W is wound around the ring portion of the ring-shaped core C once. Become.

Here, the pair of side surface forming devices 19 and 20.
Moves again to pinch the ring-shaped core C, and at the same time, the outer peripheral surface forming device 27 moves to the outer peripheral surface of the ring-shaped core C and presses the wire W in the same manner as described above, thereby passing the other side surface. The formed wire W is bent and formed. Then, the side surface forming devices 19 and 20 and the outer peripheral surface forming device 27 return to the original position, that is, the standby position separated from the ring-shaped core C.

Then, the ring-shaped core C supported by the chuck device 12 is rotated by one winding pitch in order to wind the wire W continuously on the ring-shaped core C again. The rotation of the ring-shaped core C is generated by moving the belt 16 which is a component of the chuck device 12 by a driving device. Then, the gantry 11 is rotated again by 180 degrees, and the wire W is wound around the ring-shaped core C by half. After that, the operation described above is repeated.

When the coil wire W is wound around the ring portion of the ring-shaped core C a predetermined number of times as described above, the ring-shaped core C is cut by the ring-shaped core C and then the support rollers 13a and 13b of the chuck device 12 are cut. It is removed by pulling it out from the gap. That is, with a certain amount of force, the ring-shaped core C
Simultaneously with pulling out, the two support rollers 13a and 13b are moved in opposite directions to increase the gap L between the two, whereby the ring-shaped core C can be removed from the chuck device 12.

[0023]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The winding device of the present invention will be described in more detail with reference to the embodiments shown in the drawings. 1 and 2 show a winding device 10 according to an embodiment of the present invention. In this winding device 10, a wire W for a coil is wound around a ring-shaped core C at a predetermined pitch in the circumferential direction. The core on which the wire W is wound by this device is made to function as a coil. It is also an apparatus for manufacturing a coil because it can be manufactured.

The winding device 10 includes a chuck device 12 for holding the ring-shaped core C, and each of the cores C when the wire W supplied from the outside is wound around the ring-shaped core C held by the chuck device 12. Side forming devices 19, 20 for forming a wire passing through the side surface and the outer peripheral surface, outer peripheral surface forming device 27,
And these chuck devices 12, side forming devices 19, 2
0, and a pedestal 11 that rotatably supports the outer peripheral surface forming device 27 and rotatably supports the entire device.

As shown in FIG. 1, the pedestal 11 is composed of two discs 11a and 11b arranged vertically and connected integrally by a plurality of columns 11c. The chuck device 12,
Since the main parts of the side surface forming devices 19 and 20 and the outer peripheral surface forming device 27 are installed on the upper disk 11a, the winding work is performed on the surface of the upper disk 11a. The state of the upper disk 11a is shown in FIG. Lower disk 1
Required power transmission mechanism parts such as a drive device and a drive mechanism for driving each operating part using the space between the upper disk 11a are installed on the 1b.

Chuck device 1 for holding the ring-shaped core C
2 is shown in FIGS. The detailed configuration of the chuck device 12 will be described later. Two side surface forming devices 19 and 20 installed on both sides of the chuck device 12 are shown in FIGS. 1, 2 and 6, and an outer peripheral surface forming device 27 is shown in FIG.
And shown in FIG.

The pedestal 11 will be described first with respect to each of the main components described above. The gantry 11 is intermittently rotated by 180 degrees by intermittent rotation means (not shown). There are various known means for the intermittent rotation means. For example, a mechanism for converting rotation from an electric motor into intermittent rotation by a Geneva gear is given as an example. Of course, other mechanism such as a method of electrically or electronically controlling the rotation amount by an electric motor can be used.

As described above, the chuck device 12 is installed so that a part thereof is located on the upper disk 11a.
The chuck device 12 holds the ring-shaped core C while winding the wire around the ring-shaped core C and at the same time attaches the wire to the ring portion.
It is rotated by one winding pitch each time it is wound. The chuck device 12 includes three support rollers 13a, 13b, 13c arranged at intervals in the circumferential direction of the ring-shaped core C at the holding position as shown in FIG.

The chuck device 12 further includes a feed roller 14 and a plurality of idle rollers 15 in addition to the support rollers 13a to 13c, and a belt 16 is wound around each of these rollers. The ring-shaped core C includes a belt 16 that passes between the two support rollers 13a and 13b.
From the outside to the other support roller 13c
These support rollers 13 are pushed in toward
It is held so as to be sandwiched between a and 13b.

At this time, the distance L between the two support rollers 13a and 13b which substantially sandwich and hold the ring-shaped core C.
Are set smaller than the diameter of the ring-shaped core C as shown in FIG. 3, and are movable in mutually opposite directions. That is, these two support rollers 13
The a and 13b are rotatably attached to arms 18a and 18b pivotally attached to a support column 17 that forms a skeleton of the chuck device 12, and the support rollers 13a and 13b are separated by a distance L by swinging the respective arms 18a and 18b. Expands.
A restoring force is applied to these arms 18a and 18b by springs (not shown) so as to return them to the initial position, which is the initial distance.

In this way, the two support rollers 13a,
As shown in FIG. 5, the ring-shaped core C, which is set inside by expanding the space between 13b, is clamped to such an extent that it cannot be easily disengaged by the returning force of these two support rollers 13a and 13b to the initial position. Will be done. As a result, the ring-shaped core C exposes a part of the outer peripheral surface thereof, and the belt 16 is circumscribed except the exposed outer peripheral surface portion.

The belt 16 is intermittently moved by a driving device (not shown) connected to the feed roller 14,
Thus, the ring-shaped core C is intermittently rotated. At that time, the belt 16 is intermittently driven by a movement amount that only rotates the ring-shaped core C by one winding pitch, which can be easily controlled by using a pulse motor or the like as a driving device. .

Positioned on the upper disk 11a of the gantry 11 in the chuck device 12 is a structure of three support rollers 13a, 13b, 13c for holding the ring-shaped core C as shown in FIGS. It is a part.

Next, the pair of side surface molding devices 19 and 20 are
The chuck device 12 is located on the upper disk 11a of the gantry 11.
Are installed on both sides of the supporting roller constituting part.
As is apparent from FIG. 2, the side surface forming devices 19 and 20 are movably installed on the pedestal 11 so as to approach and separate from the support roller constituent portion. Side forming device 1
9 and 20 are divided into upper constituent parts 19a and 20a and lower constituent parts 19b and 20b, respectively.
The a and 20a are configured to be vertically movable with respect to the lower components 19b and 20b.

As a result, the mating surfaces of the upper and lower constituent parts of the side surface molding devices 19 and 20 (only the mating surfaces of the upper and lower constituent parts of the side surface molding device 20 in FIG. 2 are designated by reference numerals). 20)
c and 20d are separated or closed by the vertical movement of the upper component. The mating surface of the lower component is the chuck device 12
When the central axis of the ring-shaped core C held by the chuck is located substantially in the horizontal plane and the mating surface is closed, the ring-shaped core C held by the chuck device 12 as described above. The semicircular recesses (shown by reference numerals 22a and 22b in FIG. 2 only for the side surface molding device 20 in FIG. 2) that form the holes 21 and 22 (see FIG. 6) for inserting the wire rods on the axis that substantially coincides with the central axis of each mating surface. Are formed respectively.

Of the pair of side surface forming devices 19 and 20, the outer side of one side surface forming device 19 is the side into which the wire rod supplied from the outside is inserted toward the ring-shaped core C, and therefore the outer surface is A conical recess is formed around the hole 21 for inserting the wire as a guide 23 for inserting the wire (see FIG. 6). Further, a pressing portion 24 having a shape matching the side surface shape of the ring-shaped core C is formed on the inner side surface of the side surface forming device 19.

On the other hand, regarding the other side surface molding apparatus 20,
Since the pressing portion 25 having a shape that matches the side surface shape of the ring-shaped core C is formed on the inner side surface,
9 is the same as that of FIG. 9, but a conical concave guide portion 26 centered on the hole 22 for inserting the wire rod is formed on the side surface of the pressing portion 25. This is because the wire rod inserted from the outside of the one side surface molding device 19 toward the ring-shaped core C is pulled out from the inside surface of the other side surface molding device 20 to the outside.

The pair of side surface molding devices 19 and 20 are
When the wire is wound around the ring-shaped core C held by the chuck device 12, it acts to form the wire that has passed through the side surface of the ring portion of the ring-shaped core C. That is, the ring portion of the ring-shaped core C usually has a substantially rectangular cross section. Therefore, when the wire rod for the coil is wound, the wire rod accurately corresponds to the corner portion which is the boundary between the outer peripheral surface and the side surface. Since the wire rod does not bend, the wire rod passing through the outer peripheral surface and the side surface of the ring-shaped core C bulges.

One apparatus for correcting this is the side surface molding apparatus 1
9 and 20. Therefore, in terms of its function, it can be said to be a pressing device that bends the wire rod along the corners by pressing the wire rod against the side surface of the ring-shaped core C with the pressing portions 24 and 25.

Further, on the upper disk 11a of the mount 11,
As described above, the outer peripheral surface forming device 27 that presses the wire passing through the outer peripheral surface of the ring-shaped core C against the outer peripheral surface of the ring-shaped core C is installed. As shown in FIGS. 2 and 7, the outer peripheral surface forming device 27 includes an elongated forming machine body 28, and one end portion of the forming machine body 28 is the chuck device 1.
It is installed at a position facing the exposed outer peripheral surface portion of the ring-shaped core C held by 2.

A pressing portion 29 is supported via a rod at the tip of the molding machine body 28 facing the exposed outer peripheral surface of the ring-shaped core C. This molding machine body 28
One end of each of the two driven links 30 is pivotally attached to each of the two side surfaces, and the other end of each driven link 30 extends below the upper disk 11a through a slot 31 formed in the upper disk 11a. It is pivotally attached to a fixed part.

Further, one end of the starting link 32a is pivotally attached to the rear end of the molding machine main body 28, and another starting link 32b is pivotally attached to the other end thereof, and the other end of the starting link 32b is attached. Similar to the driven link 30 described above, it is pivotally attached to a suitable fixing portion through a slot 31. This launch link 3
Reference numeral 2b is connected to a start-up mechanism portion (not shown), and is oscillated as indicated by an arrow 33 in FIG. A return spring 34 is attached to the other starting link 32a so as to apply an urging force in the direction of pulling back the starting link 32a.

Thus, in the outer peripheral surface molding apparatus 27, when the starting mechanism 32 swings the starting link 32b, the molding machine main body 28 causes the ring-shaped core C to move through the starting link 32a.
At the same time as advancing toward, the driven link 30 rises and the pressing portion 29 supported by the tip portion abuts on the exposed outer peripheral surface portion of the ring-shaped core C. The abutting portion serves as an outer peripheral surface passage portion of the wire wound around the ring portion of the ring-shaped core C, and thus the wire material can be pressed onto the outer peripheral surface of the ring-shaped core C.

In FIG. 2, reference numerals 35 and 36 denote discs, which are mechanism portions for transmitting the acting force for raising and lowering the upper constituent portions 19a and 20a of the side surface molding machines 19 and 20, respectively. is there. These discs 3
The screws 5 and 36 are fixed to the slide plates 37 and 38 by set screws 40 via arcuate slots 39 so as to enable position adjustment rotation.

Further, a driven cam groove 41 is formed in the circular plates 35 and 36, and a roller 42 is arranged in the cam groove 41. The roller 42 is supported by an oscillating body 43 arranged below the disks 35 and 36. As is apparent from FIG. 2, the driven cam groove 41 formed in each of the disks 35 and 36 is in the forward and backward direction of the molding machine body 28 of the outer peripheral surface molding device 27, that is, at a right angle to the outer peripheral surface of the ring-shaped core C and the mount. The upper disk 11a of 11 is positioned so as to be inclined with respect to a horizontal virtual axis.

As a result, when the roller 42 is moved by the oscillating body 43, a moving force is applied to the disks 35 and 36 by the movement of the roller 42 and the driven cam groove 41, and as a result, the slide plates 37 and 38 move. To do. The movement of the slide plates 37 and 38 moves the roller 44 attached to the front end portion thereof back and forth. When the roller 44 moves back and forth, the side surface forming device 19 that houses the roller 44,
The driven cam groove 45 of each upper constituent portion 19a, 20a in 20 is converted into a vertical movement to each upper constituent portion 19a, 20a.

In the winding device 10 of this embodiment, a moving mechanism and power for moving the side surface forming devices 19 and 20 close to and away from the chuck device 12 and a vertical movement of the upper part of the side surface forming device. The mechanism and power, and the motion mechanism and power of the outer peripheral surface molding apparatus are configured by a power transmission mechanism section using a large number of cam disks 46, cam followers, etc., as shown in FIG. However, the winding device 10 of the present invention is not limited to such a power transmission mechanism portion, but an electromagnetic plunger operated by an electromagnetic force, a hydraulic piston cylinder device, and a control device for operating them in a timely manner. Various devices can be used.

Next, the operation of the winding device 10 will be described with reference to FIGS. 8 and 9. First, the chuck 1 is provided with the ring-shaped core C around which the coil wire W is wound.
It is rotatably supported by 2. When the ring-shaped core C is set in the chuck device 12, the tip of the coil wire W is inserted from the outer surface of the side surface forming device 19 on one side of the core C into the hole for inserting the wire through the guide recess 23. 21 plugged in.

The tip of the wire W passes through the ring of the core C, and is passed through the guide recess 26 formed inside the side molding device 20 on the other side into the hole 22 for inserting the wire, and the outside. Be drawn to. In the operation so far, the pair of side surface forming devices 19 and 20 are moved in the facing direction, as is apparent from FIG. 6, and the inner pressing portions 24 and 25 are respectively moved.
Is in contact with the side surface of the ring-shaped core C.

Next, with the position of the tip W1 of the wire W being fixed, as shown in FIG. 9, the gantry 11 is rotated 180 degrees by the gantry intermittent rotation means (not shown). At that time, the upper constituent portion 20a of the side surface forming device 20 on the wire pull-out side is moved upward as described above by the movement of the roller 42 by the rocking body 43, whereby the upper and lower constituent portions 20a and 20b are both moved. The mating surfaces 20c and 20d are separated from each other to form a gap through which the wire can pass, as shown in FIG.

As a result, the wire W1 exits from the wire insertion hole 22 through the gap exposed in the side surface forming device 20, and wraps around from one side surface of the ring-shaped core C to the outer peripheral surface, thereby being half-wound. It Here, the pair of side surface forming devices 19, 20 once separate from the ring-shaped core C, and at the same time, the outer peripheral surface forming device 27 operates and the pressing portion 29 presses the wire passing through the outer peripheral surface of the core C, and at the same time, the side surface. When the molding devices 19 and 20 approach the core C again, the pressing unit 2
The wires 4 and 25 come into contact with the side surfaces of the core C, and the wire W is molded along the outer shape of the core C.

That is, the wire W is accurately bent and formed along the corners forming the boundary between the side surface and the outer peripheral surface of the core C, whereby the wire W is brought into close contact with the side surface and the outer peripheral surface of the core C. To be After that, the tip portion W1 of the wire W is inserted into the wire insertion hole 21 from the outside of the one side surface forming device 19 through the guide recess 23, and is pulled out from the other side surface forming device 20 as in the first operation. At that time, the upper constituent portion 19a of the one side surface molding device 19 is lifted, the mating surface with the lower constituent portion 19b is opened, and a gap is formed.

As a result, the wire rod that has bypassed the front of the side face forming device 19 is pulled out from the wire rod insertion hole 21 at the same time while being drawn to the side face of the core C through this gap, and is wound around the ring portion of the core C. Then, the side surface molding devices 19 and 20
Moves away from the ring-shaped core C and immediately moves to the core C side to press the wire W passing through the side surface of the ring-shaped core C for molding. Also at this time, the outer peripheral forming device 27 is operated to press the wire passing through the outer peripheral surface of the core C.

That is, the pair of side surface forming devices 19,
The outer peripheral surface forming apparatus 27 is always operated when the side surface 20 is pressed from the core C immediately after pressing. In this way, the wire W is wound around the ring portion of the ring-shaped core C once. Then, in order to wind the wire W again continuously on the ring-shaped core C, the ring-shaped core C supported by the chuck device 12 is rotated by one winding pitch.
Since the rotation of the ring-shaped core C by one winding pitch has already been described, it is omitted. After that, the operation described above is repeated.

When the coil wire W is wound around the ring portion of the ring-shaped core C a predetermined number of times in this way, the ring-shaped core C is cut by the ring-shaped core C and then the support rollers 13a and 13b of the chuck device 12 are cut. It is removed by pulling it out from the gap. That is, with a certain amount of force, the ring-shaped core C
Simultaneously with pulling out, the two support rollers 13a and 13b are moved in mutually opposite directions to increase the gap between the two, whereby the ring-shaped core C can be removed from the chuck device 12.

By the way, the wire W is attached to one side surface forming apparatus 1
For the operation of inserting the wire rod insertion hole 21 from the outside of 9 and pulling it out of the other side surface forming device 20 through the inside of the core C, the wire rod automatic feeding device 50 as shown in FIGS. 10 and 12 can be used. The automatic wire rod feeding device (hereinafter, simply referred to as a feeding device) 50 includes a pair of tension rollers 51 and 52 arranged outside and in front of the pair of side surface shaping devices 19 and 20 described above.

These tension rollers 51 and 52 are
Fixed guides 5 for rotation, each of which has three brakes 53, 54, 55 and is attached to a fixed disc 56.
It is supported by a rotating body 58 which rotates in a circular orbit along 7. When the tension rollers 51 and 52 rotate on a circular orbit, they rotate a rotating disc 59 or 60 (each rotating disc has a reverse rotation direction) which is constantly rotating at a constant speed by a brake 53 or 54. It is performed by being integrated with the disk 59 or 60.

When a tension exceeding the braking force is applied, the rotating operation is stopped by slipping on the rotating disc 59 or 60. In addition, each brake 5
The braking forces at 3, 54 and 55 are adjustable respectively.

Next, the procedure for winding the wire suspended on the tension roller 52 to the opposite side by the tension roller 51 will be described. Referring to FIG. 12, tension is applied to the tension roller 52 in the rotating direction of the rotating disk 60 (the rotating body 58 is integrated with the rotating disk 60 during the operation of the brake 54). In FIG. 12, the tension roller 51 is in the wire rod suspension position (while the brake 55 is operating).

When the brake 55 for the roller 51 is turned off and the brake 53 is turned on, the roller 51 separates from the fixed disc 56 and tries to follow the rotation of the rotating disc 59. However, in this state, the tensions of both are equal and the roller 51 cannot rotate. The brake 54 of the roller 52 is turned off, and at the same time, the brake 53 of the roller 52 is turned on. Then, both the rollers 51 and 52 follow the rotational force of the rotating disk 59 and thus rotate in synchronization.

When the rotation of the rotating disk 59 of the roller 51 in the rotating direction progresses and the roller 52 reaches the initial position, the tip of the roller 52 swings and the wire is separated. The tension roller 51 draws the wire rod, and when the wire rod is separated from the roller 52 and the wire rod is wound around the core C, a tension is generated at that time, and the tension is generated by the brake 53 of the roller 51.
When the frictional force due to the braking force becomes equal to the frictional force, it becomes impossible to follow the rotational force of the rotating disk and slips. After that, this series of winding operations is repeated.

[0062]

As described above, according to the winding device of the present invention, the ring-shaped core is held by the chuck device having a unique structure, and the side forming device and the outer peripheral surface forming device are formed while winding the wire around the chuck. Since the wire is shaped so as to be in close contact with the surface of the core, most of the work of winding the wire onto the ring-shaped core can be mechanized, and a high quality coil, for example, can be formed.

[Brief description of drawings]

FIG. 1 is a partially cutaway front view schematically showing a winding device according to an embodiment of the present invention.

FIG. 2 is a perspective view showing components arranged on the upper disk of the gantry in the winding device shown in FIG.

3 is a side view showing an initial state before holding the ring-shaped core in the chuck device that constitutes the winding device shown in FIG. 1. FIG.

FIG. 4 is a partially enlarged perspective view showing a ring-shaped core holding portion of the chuck device shown in FIG.

5 is a side view showing a state in which a ring-shaped core is held in the chuck device shown in FIG.

FIG. 6 is a structural explanatory view schematically showing an arrangement state of a ring-shaped core held by a chuck device, a side surface molding device, and an outer peripheral surface molding device.

FIG. 7 is a side view showing an operating state of an outer peripheral surface forming device which constitutes the winding device shown in FIG.

FIG. 8 is an operation explanatory view explaining an operation of the winding device of the present invention.

FIG. 9 is an operation explanatory view explaining the operation of the winding device of the present invention.

FIG. 10 is a configuration explanatory view schematically showing the configuration of a wire rod automatic feeding device used with the winding device of the present invention.

11 is a vertical sectional view of the wire rod automatic feeding device shown in FIG.

12 is an explanatory diagram illustrating an operation of the wire rod automatic feeding device shown in FIG.

[Explanation of symbols]

 C ring-shaped core W wire rod W1 wire rod tip 10 winding device 11 mount 11a upper disc 11b lower disc 12 chuck device 13a support roller 13b support roller 13c support roller 14 feed roller 15 idler roller 16 belt 17 support column 18a arm 18b arm 19 Side Forming Device 19a Upper Component 19b Lower Component 20 Side Molding Device 20a Upper Component 20b Lower Component 20c Mating Surface 20d Mating Surface 21 Wire Insertion Hole 22 Wire Insertion Hole 22a Semicircular Recess 22b Semicircular Recess 23 guide part 24 pressing part 25 pressing part 26 guide part 27 outer peripheral surface molding device 28 molding machine body 29 pressing part 30 driven link 31 slot 32a starting link 32b starting link 33 arrow 34 return spring 35 disk 36 disk 37 slurry Drive plate 38 Slide plate 39 Arc-shaped slot 40 Set screw 41 Driven cam groove 42 Roller 43 Oscillator 44 Roller 45 Driven cam groove 46 Cam disc 50 Wire rod automatic feeding device 51 Tension roller 52 Tension roller 53 Brake 54 Brake 55 Brake 56 Fixed 56 Disk 57 Fixed guide for rotation 58 Rotating body 59 Rotating disk 60 Rotating disk

Claims (3)

[Claims] 1. A winding device for winding wire rods for a coil around a ring-shaped core at a predetermined pitch in a circumferential direction, the chuck holding a part of a peripheral surface of the ring-shaped core so as to rotatably hold the chuck. A drive device for rotating the ring-shaped core rotatably held by the chuck device by a predetermined winding pitch, and arranged on both sides of the ring-shaped core supported by the chuck device. A side forming device that press-molds the wire rod that has passed through the side portion of the ring-shaped core while being abutted and separated from the ring-shaped core, and is attached so as to face the peripheral surface portion of the ring-shaped core supported by the chuck device. And an outer peripheral surface molding device that press-molds the wire rod that has come into contact with and separated from the peripheral surface part of the ring-shaped core and passed through the peripheral surface part of the ring-shaped core, and the side surface molding device and the outer peripheral surface molding device as appropriate. A drive mechanism for the chuck device, said drive device, said side forming device,
A winding device comprising: a rotatable mount supporting the outer peripheral surface forming device and the drive mechanism; and rotating means for intermittently rotating the mount every 180 degrees. 2. The at least three support rollers installed so that the chuck device is arranged at intervals in the circumferential direction of the ring-shaped core in the holding position, the feed roller interlocked with a driving device, and a plurality of feed rollers. It is composed of an idle roller and a belt wound around these rollers, and two of the three support rollers are vertically arranged and spaced from each other when the chuck device is viewed from the front. The winding device according to claim 1, wherein the winding device is supported so as to be capable of expanding and contracting the distance. 3. The side molding device is composed of two split members that are in contact with each other at a distance from each other, and is located in a mating surface of these two split members, and the ring-shaped core of the ring-shaped core is located from an outer portion of the side molding device. An insertion opening used when inserting the wire into the inside and pulling out the wire from the inside of the ring-shaped core to the outside of the side surface molding device is provided, and the wire passing through the insertion opening is used as the ring-shaped core. The winding device according to claim 1, wherein the slit member is formed by opening the dividing member so as to escape from the insertion opening of the side surface shaping device to the winding outer peripheral surface side of the ring-shaped core for winding.