JP2562635Y2 - Automatic taping device for stator coil - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION The present invention relates to an automatic taping of a stator coil which is bent and formed into a tortoise-shape, and enables a high-precision reciprocating taping of an insulating tape on a stator coil used for a large rotating electric machine. It concerns the device.

[0002]

2. Description of the Related Art As shown in FIG. 10, a stator coil (hereinafter simply referred to as a "coil") C used in a large rotating electric machine is bent into a tortoiseshell shape, and has bent portions at both ends. A portion close to this is manually taped, and the other portion (the portion indicated by “A” in FIG. 10) is automatically taped by a mechanical device. Conventional taping device, as shown in FIG. 11, the rotation plate 31 a ring-shaped in taping head (not shown) which moves along the length of the coil C around a horizontal axis B ₁ Rotatably mounted, this rotating plate 3
The tape reel 32 whose axis B ₂ together are mounted in substantially parallel to the axis B ₁ of the rotary plate 31 to 1, winding an insulating tape 33 pulled out from the tape reel 32 to the coil C Predetermined winding angle (θ ')
Guide rollers 34 consisting of the inclined roller or tapered roller to form a are mounted on the rotary plate 31, by inserting the coil C in the hole of the rotating plate 31, and the rotating plate 31 around its axis B ₁ By moving the taping head along the coil C while rotating it, the insulating tape 33 is drawn out from the tape reel 32 via the guide roller 34, and the drawn out insulating tape 33 is wound around the coil C. It is a configuration to perform taping.

As described above, in the conventional taping device, since the direction of the guide roller 34 for generating the winding angle of the insulating tape 33 around the coil C is constant,
The taping direction is limited to one direction determined by the direction of the guide roller 34. In a high-voltage coil, it is necessary to apply a plurality of layers of taping, and the taping head is moved from one end of the coil to the other end to perform taping. After that, the operation of returning the taping head from the other end to one end of the coil and performing the taping again is repeated, thereby performing the taping of multiple layers. As described above, when performing multiple layers of taping, since taping is performed only when the taping head moves forward, waste of the backward movement is large, and the insulating tape is cut every time taping is performed, Since the terminal processing must be performed, the taping efficiency as a whole is poor.

If a mechanism for alternately changing the direction of the guide roller 34 is mounted on the rotary plate 31 during forward and backward movements of the taping head, reciprocating taping becomes possible. In addition to the complicated structure, since the guide roller 34 is disposed between the tape reel 32 and the coil C, the taping zone is limited and the three-dimensionally bent High-precision taping cannot be performed for shaped coils.

[0005]

SUMMARY OF THE INVENTION It is an object of the present invention to perform high-precision reciprocating taping without using a guide roller for generating a winding angle of an insulating tape around a coil.

[0006]

In order to solve this problem, a means adopted in the present invention is that a ring-shaped rotating plate is mounted on a taping head so as to be rotatable about a horizontal axis. A tape reel is mounted on the rotating plate so that its axis is substantially parallel to the axis of the rotating plate, and a coil formed in a turtle-shape is inserted through the rotating plate to rotate the rotating plate. In the automatic taping apparatus having a structure in which the taping head is moved along the coil, the insulating tape is pulled out from the tape reel and taping is performed on the coil. The tape reel is mounted on the rocking plate so that the tape reel is mounted on the rocking plate so as to be rockable about a rocking axis perpendicular to the heart.

[0007]

When the taping head is moved along the coil while rotating the rotary plate, the insulating tape is pulled out, and the rocking plate is tilted at a predetermined angle about the rocking axis and pulled out. The tape is spirally wound around the coil. Since the swing plate is mounted on the rotating plate so as to be swingable about a swing axis orthogonal to the rotation axis of the rotating plate, the tape reel mounted on the swing plate is The tape is naturally inclined in the direction of the tape to be pulled out, and is accurately taped without any wrinkles. Then, even when the taping head reaches one taping end and turns back, the rotating plate is rotated to continue taping. When the taping head is moved in the opposite direction, the rocking plate naturally tilts in the opposite direction to the above, and is taped in the opposite direction to the lower layer. For this reason, high-precision reciprocating taping can be performed on the coil, and at the same time, since the tape is continuous at the taping end, the terminal processing becomes unnecessary.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in more detail below with reference to embodiments. FIG. 1 is a front view of a taping head H. The taping head H inserts and arranges a coil C, which is bent and formed substantially at the center of a circular hole 1 formed at an upper part, in a substantially horizontal manner. The coil C reciprocates along the longitudinal direction. The portion of the taping head H where the hole 1 is provided is formed in a plate shape, and a ring-shaped rotating plate 2 is rotated on one side surface (corresponding to the front surface in FIG. 1) of this portion. Mounted as possible. The ring-shaped rotary plate 2 is partially cut out so that a coil can be taken in and out, and a cut-out portion 2a is formed.
And is discontinuous in the circumferential direction. In a state where the ring-shaped rotating plate 2 is mounted on the upper part of the taping head H, the hole 2c substantially matches the hole 1 provided on the upper part of the taping head H. The rotating plate 2 has a gear shape with teeth formed on the outer peripheral surface thereof, and is arranged at a wider interval than the teeth on the outer peripheral surface of the rotating plate 2 and the width of the missing portion 2a. The two small gears 3a and 3b mesh with each other, and the rotating plate 2 is rotated by the drive rotation of each of the small gears 3a and 3b. The driving force of the taping motor 4 is transmitted to the small gear 3a via the clutch 5, and the driving force of the small gear 3a is transmitted to another small gear 3b.

FIGS. 2 and 3 are a front view and a side view, respectively, of the rotating plate 2, and FIG. 4 is a perspective view showing a state in which the rotating plate 2 is moved in the direction of arrow P and taped. In these figures, a ring-shaped rotary plate 2 is formed with a semi-elliptical cutout 2b opening on the inner peripheral surface thereof. A pair of brackets 6 are fixed to the rotating plate 2 so as to stand upright on the rotating plate 2. Brackets 8 are fixed to both ends of the elliptical rocking plate 7 in an upright position. Most of the rocking plate 7 is disposed in the cutout portion 2b and fixed to the notch 2b. A pair of brackets 8 and the rotating plate 2
And a pair of brackets 6 fixedly connected to each other via a swing shaft 9 composed of a connecting pin. Therefore, the swing plate 7 can swing around the pair of swing shafts 9. The pivot axis B ₃ of the pivot plate 7 is orthogonal to the rotational axis B ₁ of the rotary plate 2. An insulating tape 12 wound around a tape core 11 fixed to the center of the swinging plate 7 is fitted, and the tape core 1 is sandwiched between the insulating tapes 12.
1, a reel plate 13 is detachably mounted.
Therefore, the wound insulating tape 1 attached to the rocking plate 7
2 is a swing axis B ₃ orthogonal to the rotation axis B ₁ of the rotating plate 2.
Swing freely around. In the above embodiment,
The swinging plate 7 having a tape core 11 fixed at the center and a reel plate 13 detachably attached to the tape core 11 constitute a tape reel R.

Next, taping by the above-described device will be described. FIGS. 4 and 5 show a state in which the taping head H is moving in the direction of arrow P to perform taping, and while rotating the rotating plate 2 in the direction of arrow Q, the taping head H is moved in the direction of arrow P. The swinging plate 7 is tilted by a predetermined angle about the swinging shaft 9 by the pulled out insulating tape 12, and the tape 12 is spirally wound around the coil C. The swing plate 7 is mounted on the rotating plate 2 so as to be swingable about a swing axis B ₃ orthogonal to the rotating axis B _{1 of} the rotating plate 2.
The tape is naturally inclined in the direction of the pulled-out tape 12, and is accurately taped without wrinkles. The winding angle (θ ₁ ) of the insulating tape 12 around the coil C is determined by the ratio between the moving speed of the taping head H and the rotating speed of the rotating plate 2.

When the taping head H moves along the longitudinal direction of the coil indicated by the arrow P and reaches one taping end, the taping head H is instantaneously stopped and turned back. The rotating plate 2 also keeps rotating and taping. Then, when the taping head H starts to move in the direction of the arrow P ', which is the opposite direction to the above, the winding direction of the tape 12 around the coil C is reversed, so that as shown in FIGS. Then, the swinging plate 7 is naturally inclined in the opposite direction by the tape 12 pulled out, and the taping is continued. Therefore, reciprocating taping can be performed, and it is not necessary to cut the tape at both taping ends, so that the terminal processing is not required.

FIGS. 8 and 9 show a state in which taping is performed with the ratio of the moving speed of the taping head H to the rotating speed of the rotary plate 2 being larger than the above. The moving plate 7 is inclined more greatly than the above, and the winding angle (θ ₂ ) of the tape 12 around the coil C is larger than the above angle (θ ₁ ).

In the above embodiment, the notch 2b which is opened on the inner peripheral surface of the ring-shaped rotating plate 2 is formed.
The structure in which most of the swing plate 7 is disposed in the notch 2b has an advantage that a predetermined taping zone can be secured. However, in the present invention, the rotating plate 2 is not always required.
It is not necessary to dispose the oscillating plate 7 in the notch 2b provided in the oscillating plate. Any structure can be used for mounting the swing plate on the rotary plate as long as the swing plate can be mounted on the rotary plate so as to be swingable. Further, in the above embodiment, the swing plate itself forms a part of the tape reel. However, a structure in which an independent tape reel is detachably mounted on the swing plate may be adopted.

[0014]

[Effect of the invention] The present invention is based on
Since a rocking plate that freely swings and tilts around a rocking axis perpendicular to the rotation axis of the rotating plate is mounted on the rotating plate, and a tape reel is mounted on this rocking plate, Reciprocating taping becomes possible, and at the same time, since the tape is continuous at both taping ends, it is not necessary to terminate the tape. In addition, the swinging plate mounted on the rotating plate naturally tilts to an angle determined by the ratio of the moving speed of the taping head to the rotating speed of the rotating plate by the tape to be pulled out, and the winding angle of the tape around the coil. Is naturally determined, so that the tape wound around the coil has no wrinkles. As a result, both the efficiency and the accuracy of taping for a coil bent into a turtle shape are greatly improved.

[Brief description of the drawings]

FIG. 1 is a front view of a taping head H. FIG.

FIG. 2 is a front view of the rotating plate 2 on which the swing plate 7 is mounted.

FIG. 3 is a side view of the same.

FIG. 4 is a perspective view of a portion of the rotating plate 2 showing a state where taping is performed along a direction of an arrow P.

FIG. 5 is a front view of the same.

FIG. 6 is a perspective view of a portion of the rotating plate 2 showing a state of taping along a direction of an arrow P ′.

FIG. 7 is a front view of the same.

FIG. 8 is a perspective view of a portion of the rotating plate 2 in a state where taping is performed with the winding angle of the tape 12 increased.

FIG. 9 is a front view of the same.

FIG. 10 is a perspective view of a coil C bent into a tortoiseshell shape.

FIG. 11 is a front view of a main part of a conventional taping device.

[Description of Signs] B ₁ : Rotation axis of rotating plate B ₃ : Oscillating axis of rocking plate C: Stator coil H: Taping head R: Tape reel θ ₁ , θ ₂ : Winding angle of insulating tape 2: Rotating plate 2b: Notched portion of rotating plate 7: Swing plate 9: Swing shaft 12: Insulating tape 13: Reel plate

Claims (2)

(57) [Scope of request for utility model registration] 1. A ring-shaped rotating plate is mounted on a taping head so as to be rotatable about a horizontal axis, and a tape reel is mounted on the rotating plate so that the axis thereof is substantially aligned with the axis of the rotating plate. A stator coil mounted in parallel and bent in a tortoise shape is inserted into a hole of the rotating plate, and the taping head is moved along the stator coil while rotating the rotating plate. Thus, in the automatic taping device configured to pull out the insulating tape from the tape reel and perform taping on the stator coil, the rocking plate may be provided on the rotating plate with the center of the rocking axis being orthogonal to the rotation axis of the rotating plate. The tape reel is mounted on the rocking plate, and the rocking plate is moved in opposite directions about the rocking axis when the taping head is moving forward and backward. Tilt An automatic taper device for the stator coil, wherein a reciprocating taping is performed by generating a winding angle of the insulating tape with respect to the stator coil. 2. The ring-shaped rotary plate has a notch formed in the inner peripheral surface thereof, and the rocking plate is disposed in the notch. Automatic taping device for stator coil.