JPH08138962A - Coil manufacturing apparatus - Google Patents

Abstract

PURPOSE: To obtain a coil manufacturing apparatus which prevents a strand from being damaged due to a slip and whose operability is enhanced by a method wherein, while required tension is being given to a strand, the strand is fed and, even when the winding diameter of a reel is changed, tension according the diameter is given to the strand. CONSTITUTION: A strand 9 is set on a tension feed device 1 so as to be fed up to a feed device 6 which prevents the strand 9 from being buckled. Then, the strand 9 is set on the feed device 6, and the strand 9 is fed up t a winding mold 4 by both feed devices 1, 6. Then, an air cylinder 7 which moves the feed device 6 up and down is shrunk, and the feed device 6 is separated from the strand 9. Then, the strand 9 is attached to the winding mold 4, and the winding mold 4 is turned so as to take up the strand 9. When the winding mold 4 comes within a range of ±30 deg. from the vertical position, an adhesive is supplied from adhesive applying machines 2, 23 arranged near the respective feed devices 1, 6, and the strand 9 is coated with the adhesive. When the winding operation of a coil is finished by the winding mold 4, a cutter part for a cutting device 5 is made to protrude to the front side, the strand 9 is cut and the winding operation of one coil is finished.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for manufacturing coils such as stators and rotors used in large electric motors and the like.

[0002]

2. Description of the Related Art A plate-shaped winding used in a conventional stator coil is composed of a foot switch type winding machine and a reel stand for hanging tension. During the winding work, tension was applied by a brake attached to the shaft of the reel stand, and the foot switch was pressed to wind a predetermined number of turns.

In the subsequent step, there is a taping step of winding a mica tape around a wire, but at that time, it is necessary to prevent the wire in the straight part from becoming uneven. After the completion of the wire, a piece of paper coated with an adhesive was sandwiched between the wires of the linear portion of the coil, heated under pressure with a mold, and the adhesive was solidified to bond and fix the wires.

[0004]

The tension has been obtained by applying a brake to the reel, but there is a problem that the tension value changes when the reel winding diameter changes due to an increase in the number of windings of the wire while the reel is rotating. In order to correct it, the braking force had to be readjusted according to the reel winding diameter, and improvement in workability was desired.

When tension is applied to the reel, the reel flange rubs against the insulating tape around the wire,
The insulating tape could be damaged. Therefore, an object of the present invention is to provide a coil manufacturing apparatus that obtains a required tension value irrespective of the winding diameter of a reel and further does not need to press and heat the coil with a mold.

[0006]

In order to achieve the above-mentioned object, the present invention according to claim 1 is to provide a tension feed device for delivering a wire and applying a tension as required, and a tension feed device for delivering the wire. An adhesive applicator that applies an adhesive to the wire, a winding device that winds the adhesive-coated wire, and a wire installed between the winding device and the adhesive applicator. A coil manufacturing apparatus, comprising: a cutting device for cutting; a tension feed device of the invention according to claim 1;
A set of belts for holding the strands, a first pulley that drives each belt and is coupled to a drive motor through a clutch, a second pulley that supports and follows each belt, and the belt And a pressing device that presses the wire against the wire at a predetermined pressure. The present invention according to claim 3 provides the coil applicator of the invention according to claim 1, The longitudinal axis of the winding device is ± 30 from the horizontal position
Provided is a coil manufacturing device characterized by applying an adhesive to a wire in a range of °, and the present invention according to claim 4 provides a tension feed device and a cutting device according to claim 1. A coil manufacturing method, comprising: a feed device for supporting and feeding a wire between the two and a second adhesive applicator for applying an adhesive to the wire fed from the feed device. Provide a device.

[0007]

According to the present invention as set forth in claims 1 and 2, the tension feed device allows the filament to be delivered while applying tension to the filament as necessary, and even if the reel diameter changes. A corresponding tension can be applied to the wire, and there is no damage to the wire due to slippage, so workability can be further improved.

Further, in the present invention according to claim 3,
Since the adhesive can be applied to the wire at a predetermined position, the wire bonding position can be set at a position other than the end of the winding device, and the wire dislocation can be prevented during taping work of the winding wire. You can

According to the present invention of claim 4,
Since the strands can be supported by the feed device, the strands do not buckle even if the tension feed device and the winding device are long, and the reliability of the coil can be further improved.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is an overall configuration diagram of a stator coil manufacturing device of the present invention. In FIG. 1, the wire 9
Enters the tension feed device 1, where after the tension is suspended, it enters the winding form 4 which is fed out by the second feed device 6 and is rotatably supported by the winding device 3, and is wound by the winding form 4. Taken.

The winding operation is performed as follows. First strand 9
Is set in the tension feed device 1. Then, the wire is fed by this device to the second feed device 6 for preventing the buckling of the wire 9. Next, the wire 9 is set on the second feed device 6, and the wire 9 is sent to the winding form 4 by both the feed devices 1 and 6.

When the feeding is completed, the air cylinder 7 for moving the second feeding device 6 up and down is contracted to move the second feeding device 6
Is separated from the wire 9. Then, the strand 9 is attached to the winding form 4, and the winding form 4 is rotated in the direction of the arrow in the drawing to wind up the strand 9. Winding form 4 ± 30 ° from vertical position (-30 °
At (330 °) to 30 °, 150 ° to 210 °), the adhesive is applied from the adhesive applicators 2 and 23 arranged in the vicinity of the feed devices 1 and 6 to the wire. When coating is performed at the rotating position of the winding form 4, it can be applied to a position on the winding form 4 which is in contact with a straight line portion other than both ends. This is because if the coating is applied to both ends, it will be inconvenient in the coil deformation work before the taping work. Note that the outermost portion of the wound coil does not need to be coated with an adhesive, so it is not coated.

When the coil has been wound by the winding die 4, the cutter portion of the cutting device 5 is moved to the front side to cut the wire 9, and the winding operation of one coil is completed. For the next coil winding work, the same work can be repeated by feeding the winding form 4 from the place where it is cut by the cutting device 5.

In FIG. 1, winding device 3 and adhesive applicator 2,
Each of the distances 23 is adjusted to the same distance by the linear motion guide 10 arranged in the lower part. With this distance relationship, if the winding die 4 is applied in the front-back range in the vertical direction, it can be applied in a range corresponding to a straight line portion on the winding die after winding. To set the coating range, the rotation angle of the winding form 4 is measured by an encoder (not shown) arranged coaxially with the rotation axis of the winding form 4, but the symbol from the encoder is turned on at the set number of times. / OFF signal is sent to the adhesive applicator 2. Since the setting of the coating range is controlled by the angle, even if the size of the winding die 4 is different, the same control can be performed by changing the positions of the adhesive coating machines 2 and 23 according to the size. In this embodiment, the winding die 4 applies the adhesive within a range of ± 30 ° in the vertical direction.

The second feed device 6 crimps the wire 9 with an air cylinder and feeds it only when the wire 9 is fed. The second feed device 6 is configured to be vertically retracted by the air cylinder 7 during the winding of the wire 9. Reference numeral 8 in the drawing is a free roller that keeps the vertical direction of the wire 9 within a certain range. The second feed device 6 can be omitted when the interval between the tension feed device 1 and the winding form 4 is short.

FIG. 2 is a detailed view of the tension / feed device 1 in FIG. In FIG. 2, when feeding the strand 9 by the tension / feed device 1, the rotational force of the motor 14 disposed in the tension / feed device 1 is fed to the strand 9 from the clutch 13 and the pulley 12 via the belt 11. Communicate as power. When the tension is applied to the wire 9, the clutch 13 is disengaged to prevent the force of the motor 14 from being transmitted, and the powder is arranged coaxially with the pulley 12 and has magnetic powder inside so that the magnetic force can be linearly controlled by electric power. The brake 15 applies resistance. At that time, if the frictional force between the belt 11 and the wire 9 is small, both may slip and the wire 9 may be damaged.

Therefore, in this case, the belt 11 is restrained by the force of the air cylinder 17 and the spring 16 arranged in the tension feed device 1, the slip is eliminated and the strand 9 is prevented from being damaged, and the strand 9 is tensioned. You can

Next, the cutting device 5 will be described with reference to FIG. In FIG. 3, a cutting device 5 is a cylinder 1 arranged at an end of an air cylinder 22 which constitutes the main body.
The cutter blade 19 connected to the lower end of the cylinder 18 is pushed down by the hydraulic pressure of 8, and the cutter blade 19 is regulated by a blade guide 20 arranged below the cutter blade 19 and moves directly below to move the wire 9 Disconnect. Below the cutter blade 19, there is a blade support 2 for adjusting the clearance of the cutting edge.
1 is provided. When the cutting is completed, the cutter blade 19 is returned upward by the cylinder 18 and further retracted by the air cylinder 22 in the rearward direction toward the main body so as not to obstruct the movement of the wire 9 in the winding. That is, the cutter blade 19 is advanced from the main body only when cutting. Since the cutting device 5 can slide laterally by the linear guide 10, the cutting position can be adjusted according to the size of the winding form 4.

[0019]

As described above, in the present invention according to claims 1, 2 and 4, since the tension of the wire can be kept constant by the tension feed device, the tension can be adjusted. If you do it at the beginning of winding,
No adjustment is required during the work, and since the reel brake is not applied, damage to the strand due to rubbing against the reel can be prevented. Further, in the present invention according to claim 3, since the adhesive application position can be made constant, subsequent steps can be facilitated.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram of a coil manufacturing apparatus according to an embodiment of the present invention.

FIG. 2 is a detailed side view showing the tension feed device shown in FIG.

3 (a) is a side view of the cutting device shown in FIG. 1,
(B) is a front view of the cutting device shown in (a).

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Tension feed device, 2, 23 ... Adhesive applicator 3 ... Winding device, 4 ... Winding die 5 ... Cutting device, 6 ... Second feed device 7 ... Air cylinder, 8 ... Free roller 9 ... Strand wire, 10 ... Linear guide 11 ... Belt, 12 ... Pulley 13 ... Clutch, 14 ... Motor 15 ... Powder brake, 16 ... Spring 17, 22 ... Air cylinder, 18 ... Cylinder 19 ... Cutter blade, 20 ... Blade guide 21 ... Blade receiver

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Eiho Mitsui 2-4 Suehiro-cho, Tsurumi-ku, Yokohama-shi, Kanagawa Toshiba Keihin Office

Claims (4)

[Claims] 1. A tension feed device for feeding a wire and applying tension as necessary, an adhesive applicator for applying an adhesive to the wire fed from the tension feed device, and a coating device for applying the adhesive. A coil manufacturing apparatus comprising: a winding device for winding the formed wire, and a cutting device arranged between the winding device and the adhesive applicator to cut the wire. 2. The tension feed device supports a pair of belts for holding the strands, a first pulley that drives each belt and is coupled to a drive motor through a clutch, and supports each belt. 2. The coil manufacturing apparatus according to claim 1, further comprising a second pulley that is driven by the roller, and a pressing device that presses the belt against the wire with a predetermined pressure. 3. The adhesive applicator is characterized in that an adhesive is applied to a wire in a range where a long axis of the winding device is ± 30 ° from a vertical position. The described coil manufacturing device. 4. A feed device for supporting and feeding a wire between the tension feed device and the cutting device, and a second adhesive for applying an adhesive to the wire fed from the feed device. The coil manufacturing apparatus according to claim 1, further comprising a coating machine.