JPS595502B2 - winding machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a winding machine for induction electric appliances such as transformers and reactors, and particularly relates to a winding machine suitable for manufacturing a coil that is a combination of a low-voltage helical coil and a high-voltage disc coil. .

Generally, the coils of transformers used for high voltages are often a combination of a low-voltage helical coil arranged inside and a high-voltage disc coil arranged outside this coil.

Low voltage helical coil (hereinafter referred to as low voltage coil) is
Since the conducting wire is wound in a spiral, a horizontal winding machine is used in which the winding drum around which the conducting wire is wound is arranged horizontally. A high-voltage disk coil (hereinafter referred to as a high-voltage coil) is formed by stacking a plurality of disk coils each having a conducting wire wound from the inside to the outside and from the outside to the inside. If a horizontal winding machine is used for the disc coil, the shape of the disc coil will be distorted, so a vertical winding machine with a winding drum arranged vertically is used. Since the low-voltage coil and high-voltage coil are manufactured using separate winding machines, it is necessary to combine the low-voltage coil and high-voltage coil, and when they are assembled, the outer diameter of the low-voltage coil and the inner diameter of the high-voltage coil must be the optimal dimensions. Since the coils are often not made to fit properly, adjustments to the inner and outer diameters are required, and the process of assembling the coils after winding is tedious.

SUMMARY OF THE INVENTION An object of the present invention is to provide a winding machine that eliminates the coil combination work and improves work efficiency.

The winding machine of the present invention has a winding drum for winding a conductor that can be rotated horizontally and vertically, and a single winding machine forms a low-voltage coil and a high-voltage coil on the winding drum. This greatly shortens the process and makes tilting work easier.

DESCRIPTION OF THE PREFERRED EMBODIMENTS A winding machine 1 according to an embodiment of the present invention will be explained below with reference to FIGS. 1 to 6.

The base 2 installed on the floor has bearings 3 at the center and left end.
4 is attached, and one bearing 3 is inserted into a support frame 6 via a main drive shaft 5.

A rotary table 8 and a winding drum 9 are inserted into one side of the main shaft 7 which is rotatably supported by the support frame 6 .
The rotary table 8 prevents the low voltage coil 10 and high voltage coil 11 wound around the winding drum 9 from falling. The winding drum employs a well-known universal opening/closing mechanism that can adjust the diameter of the winding drum. A rotation drive unit 12 is provided at the end of the main shaft that protrudes from the side surface of the support frame 6. The rotation drive section is configured as follows. That is, the gear 13 attached to the other end of the main shaft 7 is engaged with the pinion 14.

A bearing 6 formed in a part of the support frame 6 as shown in FIG.
The auxiliary drive shaft 15 fitted through B has the pinion 14 inserted into one end and the worm wheel 16 into the other end. The worm wheel 16 is a worm 1 inserted into the main drive shaft 5.
7 and is connected to the main drive shaft 5 via a coupling 18 to a drive source 19, such as an electric motor. Drive body 19
If you rotate clockwise and counterclockwise, the worm 17, worm wheel 16, pinion 14, and gear 13, which are the rotation drive unit 12, rotate in the same direction, so the rotary table electric and the winding drum 9 rotate in the same direction. do. A lifting device 20 is connected between the support frame 6 and the bearing 4.

In the lifting device, one end of a piston rod 21 is fixed to the side surface of the support frame 6 via a pin 22. The other end of the piston rod 21 moves inside the cylinder 23 in the direction of the arrow Al, bl.
It is a hydraulic device that slides on the A support portion 24 provided at the end of the cylinder engages with the bearing 4 via a pin 25.
Next, we will explain how the winding machine 1 winds the low-voltage coil 10 and the high-voltage coil 11 around the winding drum 9. Figure 3 shows the case where the winding machine 1 is used as a horizontal winding machine, and the winding drum 9 is mounted on a support frame. It is supported in the perpendicular direction of 6, that is, in the horizontal direction.

When the rotary drive unit 12 is rotated, for example, clockwise, a conductive wire (not shown) is wound helically on the drum to form the low voltage coil 10. As shown in FIG. 4, when the horizontally arranged winding drum 9 slides inside the cylinder 23 in the direction a1 indicated by the arrow shown by the solid line, the support pedestal 6 moves in the direction shown by the solid line with the main drive shaft 5 as a fulcrum. It is rotated 90 degrees to A2, and changes from the horizontal state shown in FIGS. 3 and 4 to the vertical direction, that is, the vertical state shown in FIG. Therefore, by rotating the winding drum 9 clockwise and counterclockwise by the rotary drive unit 12, the high voltage coil 11 can be formed outside the low voltage coil 10. The winding drum 9 of FIG. 5, which is arranged in a vertical state, rotates in the direction of the chain line B2 via the main drive shaft 5 by sliding the piston rod 21 in the cylinder in the direction of the chain line b1 as shown in FIG. Thus, it is supported in the horizontal direction in FIG. According to this winding machine, a low-voltage coil is wound around the winding drum in a horizontal state with the winding drum arranged horizontally as shown in FIG. In this state, a high voltage coil can be formed into a low voltage coil.

Therefore, it is possible to wind both high and low voltage coils with a single winding machine, eliminating the need for combinations of high and low voltage coils that are manufactured separately as in the conventional technology, and significantly reducing the number of work steps. In addition, since the high and low voltage coils are wound continuously, there is no gap between high and low voltage, making it possible to manufacture coils with strong mechanical strength, which improves the quality of transformers. In addition, since the main drive shaft 5 that engages the protrusion 3 and the support frame 6 is provided below the support frame, that is, between the winding drum 9 and the base 2, the height dimension H of the winding machine can be reduced. can be made low as shown in Fig. 5. Therefore, the winding drum 9 does not meander during rotation, and the conductor can be wound regularly around the winding drum. When tilting from the horizontal direction to the vertical direction or the opposite direction, the worm wheel 16 and the worm 17 tilt in an engaged state as shown in FIG. 1. Therefore, from the horizontal state in FIG. When it becomes the vertical state shown in the figure,
Since the winding drum 9 can be rotated immediately, the winding work can be done quickly. In addition, since the worm wheel 16 slides while being guided by the worm, the tilting operation is performed smoothly, and since the worm wheel and the worm are engaged with each other, the winding drum is less likely to swing from side to side during tilting. Furthermore, the tilting operation can be made smoother, making it easier to perform tilting work. As described above, according to the present invention, a low voltage coil and a high voltage coil can be continuously formed using one winding machine, so that the coil assembly work process can be significantly shortened and the winding work can be easily performed. Therefore, winding efficiency can be improved.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a winding machine shown as an embodiment of the present invention;
FIG. 2 is a sectional view taken along the line -- in FIG. 1, and FIGS. 3 to 5 are schematic side views of the winding machine. 2...Base, 3...Bearing, 5...
...Main drive shaft, 6...Support frame, 7...
...Main shaft, 12...Rotary drive unit, 13...
... Gear, 16 ... Worm wheel, 17.
... Worm, 20 ... Lifting device.

Claims (1)

[Claims] 1. A rotatable winding drum around which the conductor is wound, a support frame that supports one end of the main shaft provided on the winding drum and tilts the winding drum from a horizontal position to a vertical position using an elevating device, and a support stand that is installed between the support stands. , and a main drive shaft rotated by a rotary drive unit having a worm, a gear attached to the main shaft between the support frame and the winding drum, a pinion meshing with the gear, and connected via the pinion and an auxiliary shaft, A winding machine characterized by comprising a worm wheel that slides on a worm according to the tilting of the support frame and rotates according to the rotation of the worm.