JPS6056387B2 - Manufacturing equipment for interphase insulation of rotating electrical machines - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to an apparatus for manufacturing interphase insulation of a rotating electric machine.

[Technical Background of the Invention] In the present invention, the interphase insulator of a rotating electrical machine refers to
As shown in the figure, two electrically insulating tape-like pieces A and A are connected to two electrically insulating string materials (hereinafter referred to as rod materials).
Mouth means A, which is connected by the mouth.

Such an interphase insulator A is used, for example, as shown in FIG. 2, to incorporate a fixed winding C into a stator core 2 of a rotating electrical machine, such as a motor. Regarding the manufacturing apparatus for such interphase insulator A, the present applicant previously filed a patent application filed in 1973.
The application was filed as No. 4-22000 (Japanese Unexamined Patent Publication No. 55-1117457).

The outline of the manufacturing process is as follows. First, two electrically insulating tapes made of synthetic resin are transported parallel to each other intermittently using a feed roller and a tension roller.

On the other hand, between both rollers, a rod material for connecting the two electrically insulating tapes made of synthetic resin and stored separately on reels is supplied from a direction perpendicular to the direction in which the electrically insulating tapes are transported, and the required size is Shear to. The two sheared rods are held intersecting the two electrically insulating tapes described above. Ultrasonic welding tools are installed parallel to the vertical direction above the points where the electrical insulating tape and the rod material intersect, and these ultrasonic welding tools
The two rods are welded to two electrically insulating tapes.
Thereafter, the electrical insulating tape is cut as appropriate during intermittent transfer, and finally an interphase insulator as shown in FIG. 1 is produced. [Problems in the Background Art] By the way, as the size of the interphase insulator A becomes smaller and the distance between the electrical insulating tapes becomes narrower, the ultrasonic welding tool becomes parallel to the vertical direction due to the oscillation device on the upper part, etc. This makes it spatially difficult to place the tape, and it becomes oblique to the electrical insulation tape.

Figure 3 shows this. In the figure, 1 and 2 are electrical insulating tapes, 3 and 4 are rods sheared to the required dimensions, and 5, 6, 7, and 8 are ultrasonic welding tools placed diagonally with respect to the electrical insulating tapes 1 and 2, respectively. are shown respectively. As shown in this figure, when the ultrasonic welding tools 5 to 8 are installed diagonally, the electrical insulating tapes 1 and 2 and the rod materials 3 and 4
During welding, a component force is generated that pushes the electrically insulating tapes 1 and 2 toward the center, and the two electrically insulating tapes 1 and 2 are brought to the center of each other, and the distance n between the electrically insulating tapes becomes incorrect.

In order to prevent this, guide protrusions 9 and 10 for guiding the insides of both tapes 1 and 2 are provided on the entrance side of the electrically insulating tapes 1 and 2 on a rod support base (not shown). By doing this, the interval n between the tapes will not be disturbed by the ultrasonic welding tools 5 and 6 on the tape entry side. However, on the tape advance side, target material 3,
4 will be welded, so the guide protrusions 9 and 10 as shown above will be welded.
cannot be set up. Therefore, as shown in FIG. 3, among the four ultrasonic welding tools 5 to 8, the tapes 1 and 2 to be welded by the tools 7 and 8 on the tape advancing side are placed near the center during welding. Because it is welded,
When it becomes a product, as shown in Fig. 4, the rod material 4
It's more sagging and dry. This method has the disadvantage that an incomplete product is produced in which the distance between the pulleys 1 and 2 is shorter than the required dimension. [Object of the Invention] The present invention has been made in order to eliminate the above-mentioned drawbacks, and it is possible to prevent the rod material from sagging even if the welding tool is placed diagonally with respect to the electrical insulating tape. An object of the present invention is to provide an apparatus for manufacturing interphase insulators for rotating electric machines that can manufacture complete interphase insulators.

[Embodiment of the Invention] An embodiment of the present invention will be described below with reference to the drawings.

5 to 7 show an embodiment of an apparatus for manufacturing an interphase insulator for a rotating electric machine according to the present invention, FIG. 5 is a perspective view thereof, and FIGS. 6 to 7 show the operation of the main parts. Explanatory diagrams are shown respectively. In the figure, 20 is an electric insulating tape feeding roller, 21 is an electric insulating tape tension roller, each consisting of a pair of upper and lower rollers 20a, 20b, 21a, 21b, and two electric insulating tapes (hereinafter referred to as tapes) made of synthetic resin. 22 and 23 can be transferred parallel to each other and intermittently.

A rod material feeding roller 24 is provided between the tape feeding roller 20 and the tape tensioning roller 21 described above in a direction perpendicular to the two tapes 22 and 23 . This rod material feeding roller 24 consists of a pair of upper and lower rollers 24a, 24.
b, made of synthetic resin, and separate reels 25 and 26
Tape connecting rod materials (hereinafter referred to as rod materials) 27 and 28 stored in the tapes can be supplied from a direction perpendicular to the tapes 22 and 23, respectively. The two rod materials 27, 28 are fed out from the rod materials 27,
A rod material guide/holding stand 31 having 28 guide holes 29 and 30 is arranged.

Guide holes 29 and 30 provided in this holding table 31
At the exit side of
When the rod members 27, 2 move up by sliding into contact with each other due to the operation of the rod members 27, 2
8 into rod materials 27a, 28a of required dimensions, and each tape 22, 23 is cut on the entrance side of the tapes 22, 23.
Rod material support base 3 having inner guide protrusions 32, 33
4 is installed so that it can be raised and lowered freely. The two sheared rod materials 27a and 28a on the rod support base 34 and the two tapes 2
Ultrasonic welding tools 35 to 38 are disposed slightly above the tapes 22 and 23 at the point where the tapes 2 and 23 intersect.
28a and the two tapes 22, 23 are welded at the points where they intersect. Further, a stopper stand 39 at the tip of the rod members 27 and 28 is provided on the opposite side of the rod guide/holding stand 31 with the rod support stand 34 in between. Now, adjacent to the rod material support stand 34, the tapes 22, 23
Upper surface receivers 40, 41 (see FIGS. 6 and 7) of the tapes 22, 23 attached to a fixed frame (not shown) are provided on the advancing side of the tape. Pressing pieces 42 and 43 that press 22 and 23 from their lower surfaces are arranged facing each other. The pressing pieces 42, 43 are fixed to a horizontal rod 44, and each tape 22, 23 is attached to the horizontal rod 44.
The inner support pieces 45, 46 are fixedly arranged. Also horizontal rod 4
4 is a T installed on a lifting platform 48 provided on a lifting rod 47.
The upper ends of bolts 52 and 53 inserted from below into the small holes 50 and 51 on both sides of the T-shaped stand 49 are screwed together, and the bolts 52 and 53 are inserted between the lower surface of the horizontal rod 44 and the upper surface of the T-shaped stand 49.
, 53 are tensioned with coil springs 54, 55. In addition, in the state shown in FIG. 6, the upper surfaces of the pressing pieces 42 and 43 are as follows.
It is designed to be positioned above the upper surface of the rod material support stand 34. Next, the operation of the interphase insulator manufacturing apparatus having the above configuration will be described below.

First, the two insulating tapes 22 and 23 are placed on the feeding roller 20,
It is intermittently transferred by the tension roller 21 in parallel to the arrow y direction in FIG.

On the other hand, the rod material 27 stored in the reels 25 and 26,
28 is fed out by the rod material feeding roller 24, sent through the guide holes 29, 30 of the rod material guide/holding table 31 to the upper surface of the rod material supporting table 34, and hits the abutment piece 39a of the stopper table 39. , a signal is generated by the contact, and the feeding of the rod material feeding roller 24 is stopped. When the intermittent feeding of the rod material feeding roller 24 is stopped, feeding of the tapes 22, 23 is then stopped, and the tapes 22, 23 are stopped.
When the feeding is stopped, the rod material support stand 34 provided on the upper surface of the T-shaped small stand 49 is raised by the lifting rod 47.

Note that although the above timing is not shown, it is performed in a sequential manner. When the rod support base 34 is raised by the lifting rod 47, the outlet edges 29a, 30a of the guide holes 29, 30 of the rod guide/holding base 31 (in FIGS. 6 and 7, the guide holes The rod materials 27 and 28 are sheared at the corner portion 34a of the rod material support base 34 (only the outlet edge 29a of the portion 29 is visible) and the corner portion 34a of the rod material support stand 34. Two fixed length rods 27a, 28a (FIG. 6,
In FIG. 7, only the rod 27a side is visible) rises while being placed on the rod support 34, and the rod support 34 eventually approaches the lower surfaces of the two tapes 22, 23. At this time, since the T-shaped small platform 49 provided on the top surface of the lifting platform 48 also rises, the horizontal rod 44 elastically supported by the coil springs 54 and 55 also rises, and as the horizontal rod 44 rises, the tape 22, The inner supporting pieces 45 and 46 of 23 support the inner sides of the two tapes 22 and 23. Similarly, the inside of each tape 22, 23 on the entrance side is held by guide protrusions 32, 33 provided on the upper surface of a rod material support base 34. During the ascent of the elevating table 48, the pressing pieces 42, 43 come into contact with the lower surfaces of the tapes 22, 23, and as the elevating table 48 rises thereafter, the tape 2
2 and 23 are pushed up from their lower surfaces, and the tapes 22 and 23 are held between the pressing pieces 42 and 43 and the upper receivers 40 and 41.

The coil springs 54 and 55 contract as the lifting platform 48 subsequently rises, and the tapes 22 and 23
43, the upper surface receivers 40, 41 are pressed, and finally the upper surface of the rod material support base 34 is pressed against the rod material 27a.
, 28a, and weld by pressing the intersection points of the rod materials 27a, 28a and the tapes 22, 23 against the ultrasonic welding tools 35 to 38. When the welding is completed, the lifting table 48 is lowered to lower the inner supporting pieces 45, 46 below the plane of movement of the tapes 22, 23, and the tapes 22, 23 are moved in the direction of the arrow y by the feeding roller 20 and the tension roller 21. It is sent a certain length in the direction. Note that during the next welding process, the horizontal rod 44 rises, and the inner support piece 4
The position where 5 and 46 rise is the interphase insulator rod material 28b (5th
(see figure) and the advancing side of the rod support base 34, the inner support pieces 45, 46 can be raised without any trouble.

As described above, in the apparatus for manufacturing an interphase insulator of an electric machine according to an embodiment of the present invention, even if the ultrasonic welding tool 35 to 3
Even if the tapes 8 are inclined with respect to the tapes 22, 23, the inner side of the tapes 22, 23 is not connected to the guide protrusions 32, 33.
Since the tapes 22 and 23 are held by the inner support pieces 45 and 46, the welding tools 35 to 38 are held by the tapes 22 and 23 during welding.
Even if a force is applied that causes the guide protrusions 32,
33, it becomes possible to perform ultrasonic welding without being disturbed and displaced by the inner support pieces 45 and 46.

Additionally, in the finished product, tapes 22, 2
The distance between 3 is of a required size. Furthermore, when the tapes 22 and 23 are fed a certain length after welding is completed, the inner support pieces 45 and 46 provided in advance on the horizontal rod 44
Since the tapes 22 and 23 are lowered below the plane of movement of the tapes 22 and 23, the rod members 27a and 28a do not hit the inner support pieces 45 and 46, and the tapes 22 and 23 can be fed without any problem.
[Effects of the Invention] According to the apparatus for manufacturing interphase insulation for a rotating electric machine according to the present invention, when the rod material and the insulating tape are welded, the finished interphase insulation does not sag due to the welding tool. The rods of the object are properly parallel to each other and straight.

Therefore, it is possible to produce an interphase insulator that can be efficiently assembled into the stator core of a rotating electric machine, for example a motor.

[Brief explanation of the drawing]

Figure 1 is a perspective view of interphase insulator A, and Figure 2 is a perspective view of interphase insulator A.
FIG. 3 is a plan view showing problems with this type of manufacturing equipment that the applicant has already devised, FIG. 4 is a plan view of a defective interphase insulator, and FIGS. 5 to 7 are An embodiment of an apparatus for manufacturing an interphase insulator for a rotating electric machine according to the present invention is shown,
FIG. 5 is a perspective view thereof, and FIGS. 6 and 7 are explanatory views of the functions of the main parts. 20...Electric insulation tape feeding roller, 21.
...Electrical insulating tape tension roller, 22, 23... Electrical insulating tape, 24... Rod material feeding roller, 2
7, 28... Rod material, 29, 30... Guide hole portion, 31... Rod material guide and holding stand, 32,
33... Guide projection, 34... Rod material support stand, 35 to 38... Ultrasonic welding tool, 4
0,41・Top surface receptor, 42,43...pressing piece,
44... Horizontal rod, 45, 46... Inner support piece, 47... Lifting rod, 48... Lifting platform.

Claims (1)

[Claims] 1. A tape transport device that intermittently transports the two electrically insulating tapes 22 and 23 made of synthetic resin in parallel with each other, and rod members 27 and 28 for connecting the two electrically insulating tapes 22 and 23 made of synthetic resin. The electrical insulation tape 22, 2
a rod material feeding device that feeds the rod material from a direction perpendicular to 3;
a rod material guide/holding stand 31 provided at the feeding end of the rod materials 27, 28 and having guide hole portions 29, 30 for the rod materials 27, 28; and the guide hole portion 29 of this holding stand 31;
The rod member 27 slides into contact with the outlet side of the rod member 30 and when the rod member 27 rises,
28 and the sheared rod materials 27a, 2
8a, and the sheared rod materials 27a, 2 on this rod material support 34.
8a and the two electrical insulating tapes 22, 23, welding tools 35 to 38 provided above the two electrical insulating tapes 22, 23, and the entrance of the tapes 22, 23 of the rod material support 34 Guide protrusions 32 and 33 provided on the sides and inside of each tape 22 and 23, and an upper surface receiver 40 of the tapes 22 and 23 that is adjacent to the rod support base 34 and arranged on the advancing side of the tapes 22 and 23. , 41, pressing pieces 42, 43 for pressing the tapes 22, 23 onto the receivers 40, 41 from their lower surfaces, and inner support pieces 45, 46 for each tape 22, 23, and a horizontal rod 44 which can be raised and lowered. , a lifting device for lifting and lowering the horizontal rod 44 and the rod material support base 34.