JPH0815127B2 - Mold coil resin filling device - Google Patents

Description

The present invention relates to a resin filling device for a coil for a molded transformer, and more particularly to a resin filling device suitable for filling the upper and lower ends of a coil with putty resin. .

[Conventional technology]

Conventionally, there is a method of forming a molded coil by covering the inside and outside of the coil with prepreg, applying putty resin to the upper and lower end surfaces of the coil, and heat-curing the prepreg and putty resin. Although disclosed in Japanese Patent No. 43506, the resin filling device has not been considered in order to efficiently manufacture a large coil.

[Problems to be solved by the invention]

The above-mentioned prior art does not consider how efficiently putty resin is filled and cured on the upper and lower end surfaces of a large mold, and it is possible to handle a large coil having a large weight and size. Since it was difficult, there was a problem that workability was poor.

It is an object of the present invention to provide an apparatus capable of continuously and efficiently performing a putty-like resin filling operation on the upper and lower end surfaces of a large mold coil and a curing operation.

[Means for solving problems]

The above-mentioned purpose uses a frame structure that supports the entire winding at both ends of the winding drum shaft and can tilt and rotate the whole,
This is accomplished by filling the putty-like resin so that the winding drum shaft can rotate in the frame structure, and also by using the frame structure as a heat curing device.

[Action]

The frame structure is provided with wheels, and the entire apparatus can be carried into a curing oven and the coil filled with putty resin can be heated and cured.

Since the frame structure is supported by the coil and rotated by the gear at an angle between vertical and horizontal, the filling work of the putty-like resin on the upper and lower ends can be performed from above respectively. Further, since the coil is supported and fixed by the rotating ring from the frame structure by the winding drum shaft, the filling operation can be efficiently performed while rotating the coil to an arbitrary position in the circumferential direction.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 to 7. The filling device A includes a feed beam 9 provided on the horizontal frame 1, a fixed ring 8 engaged with the feed beam 9, and a rotary ring 1.
4, connection frames 2a, 2b, gears 5, 7, 11 and support frame 16, wheels
It is composed of 12 materials, and each material is made of steel, etc., which does not interfere with repeated application of a hardening temperature of 150 ° C. A large coil C for a molded transformer, which is formed by winding prepregs 25 and 26 and an electric wire 27 on a winding cylinder 22 having a variable diameter, is mounted on a winding shaft 3 of a bogie 28.
It is supported by and cured by heating. Next, as shown in FIG. 5, together with the winding drum, the coil C is mounted on the filling device A, and the entire coil C is engaged with the winding drum 22.
Upright while supported by 30. The putty resin 24 is filled while rotating the coil C in the circumferential direction around the winding drum shaft 3 so as to come to an arbitrary position of the operator, and the coil C is kept upright as shown in FIG. It is carried into a curing furnace (not shown) and cured by heating. Next, after being carried out from the curing furnace, as shown in FIG. 5, the position of the fixing ring 8 was adjusted according to the height of the coil, and the coil support base 18 to which the cushion material 19 was adhered was first cured. The position of the arm 15 in the radial direction is adjusted so as to be in close contact with the resin surface 31, and the coil C is sandwiched between the upper and lower ends. Next, after the whole of the horizontal frame 1 is inverted by the handle 4 and the gear 5, the support fitting 29 and the coil receiving fitting 30 are removed, and the putty-like resin is attached to the end surface on the opposite side to the above in the state shown in FIG. To fill.
Since the rotating ring 14 inscribed in the fixed ring 8 is engaged and rotated by the rotation of the cam blowers 20 and 21, the operator can freely change the end position of the coil C performing the filling work in the circumferential direction.

After the completion of the filling operation, the entire apparatus A is carried into the curing furnace and the entire coil C is heat-cured, and the formation of the large mold coil is completed, as described above. Horizontal frame 1, connecting frame 2a, 2
b forms a quadrangle as a whole, and both ends of the winding barrel shaft 3 are supported by bearings 23. The rotation of the handle 6 causes the gears 7 and 16 to rotate, and the rotation of the feed beam 9 causes the fixed ring 8 to slide in the axial direction, but the gear 11 causes both sides to move. arm
A plurality of 15 are mounted on the rotating ring 8, slid in the fixing metal fitting 17 in the radial direction, and fixed by the clamp 32. The size of the pedestal 18 is exchanged according to the size of the coil.

According to the present embodiment, the putty-like resin filling work of the mold coils having different height and diameter size combinations can be performed with high efficiency by one resin filling device, and the curing work can be performed consistently. be able to.

〔The invention's effect〕

According to the present invention, it is possible to meet a wide range of design specifications with one device, and it is possible to realize the construction of a high-mix low-volume production system that will further develop in the future.

In addition, upright / inverted large coils can be handled simply and the putty-like resin filling work can always be performed on the upper surface side, so a beautiful finished surface can be obtained without using the end face shaping push plate. Therefore, the putty-like resin filling operation can be performed in a short time.

[Brief description of drawings]

1 is a side view of one embodiment of the present invention, and FIG. 2 is a side view of FIG.
II-II arrow view, FIG. 3 is a sectional view taken along the line III-III of FIG.
FIG. 4 is a side view of the application example, FIGS. 5 and 6 are side views for explaining the work, and FIG. 7 is a vertical sectional view taken along the line VII-VII in FIG. 1 ... Horizontal frame, 2a, 2b ... Connected frame.

Claims (2)

[Claims] 1. A parallelogram-shaped frame structure, wherein the central portions of the two long sides are rotationally engaged with a support frame by a gear so that the frame structure can be tilted at an arbitrary angle in a vertical plane. The fixed ring that moves in the direction of the long side by the rotation of the feed beam provided on the two long sides, the rotary ring that slides in the circumferential direction through the cam floor on the inner diameter side of the fixed ring, and the rotary ring. A mold coil resin filling device, comprising: a plurality of coil supporting arms that slide in the circumferential direction in a radial direction and a bearing for rotatably supporting the mold coil winding shaft on the short side. 2. The mold coil resin filling device according to claim 1, wherein the support frame is mounted on an underframe with traveling wheels and can be carried in and out of a curing furnace.