JP2001158572A - Winding bobbin for wire - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a winding bobbin for wire capable of preventing a rectangular copper wire from being discolored caused by the temperature of the winding bobbin for wire immediately after being taken out of a continuous annealing furnace lowering rapidly. SOLUTION: This winding bobbin feeds a wire, especially a rectangular copper wire into the continuous annealing furnace after being wound, wherein a cooling hole is provided in a collar part thereof, and cooling fins are formed inside a shell part thereof in a spiral manner.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a wire winding bobbin,
In particular, the present invention relates to a wire winding bobbin for winding a rectangular copper wire.

[0002]

2. Description of the Related Art FIG. 3 is a partial longitudinal sectional view of a conventional wire rod winding bobbin. FIG. 4 is a side view of the wire winding bobbin of FIG. 11 is a bobbin body, 12 is a flange, 13 is a shaft pipe,
14 is a lower terminal fixing hole, 15 is an outer terminal fixing hole, and 16 is a bobbin positioning hole.

A wire winding bobbin in which a rectangular copper wire has not yet been wound is called an empty bobbin. When a flat copper wire is wound around the bobbin body 11 of the wire winding bobbin, an empty bobbin is attached to the winding machine. At this time, a bobbin positioning hole 16 on a side surface of the wire winding bobbin is provided on the winding machine side. Insert bobbin positioning pin. The shaft of the winder is inserted into the shaft tube 13.

Then, the lower end of the flat copper wire is connected to the bobbin body 1
1 is inserted into the lower terminal fixing hole 14 on the upper side, and winding is started. After the winding, the outer end of the flat copper wire is inserted into the outer terminal fixing hole 15 and the wound flat copper wire is sent to a continuous annealing furnace in that state in order to soften the flat copper wire. The rectangular copper wire is annealed in a continuous annealing furnace to become annealed copper and is completed as a product.

[0005]

The conventional wire winding bobbin has the following problems.

[0006] In order to convert a rectangular copper wire wound on a wire winding bobbin from hard copper to soft copper, the wire winding bobbin is put into a continuous annealing furnace for annealing, but after the annealing is completed, the wire winding bobbin is removed. When the wire was taken out, there was a problem that the temperature did not decrease due to the large heat capacity of the wire winding bobbin, and as a result, the flat copper wire was discolored by reacting with oxygen in the air.

In the continuous annealing furnace, since the annealing is performed in a reducing gas atmosphere, no discoloration occurs in the annealing furnace. Also, by changing the annealing conditions, it is possible to set the temperature of the wire winding bobbin immediately after being taken out to a low temperature that does not cause a discoloration phenomenon. It is bothersome and impractical.

Accordingly, an object of the present invention is to solve the above-mentioned disadvantages of the prior art, and to reduce the temperature of a wire winding bobbin immediately after being taken out of a continuous annealing furnace so that the flat copper wire does not discolor. An object is to provide a bobbin.

[0009]

According to the present invention, there is provided a wire winding bobbin which is fed into a continuous annealing furnace after winding the wire, wherein the wire winding bobbin has a cooling hole formed in a flange portion thereof. And cooling fins were provided inside the body.

The cooling fin is provided spirally inside the body.

[0011]

FIG. 1 is a partial longitudinal sectional view showing an embodiment of a wire winding bobbin according to the present invention. FIG. 2 shows FIG.
It is a side view of the wire winding bobbin. 1 is the bobbin fuselage, 2
Is a flange, 3 is a shaft tube, 4 is a cooling fin, 5 is a lower terminal fixing hole, 6 is an outer terminal fixing hole, 7 is a cooling hole, and 8 is a bobbin positioning hole.

The bobbin body 1 is longer than a conventional wire winding bobbin. Therefore, when the flat copper wire is wound on the wire winding bobbin by the same amount as in the related art, the number of winding layers is reduced and the height of the flange portion 2 does not need to be increased as compared with the related art. Then, since the exposed surface area of the rectangular copper wire is increased as compared with the conventional case, immediately after taking out the wire winding bobbin from the continuous annealing furnace, the temperature is rapidly lowered by the surrounding cool air.

Further, cooling fins 4 are provided on the wire winding bobbin.
Are provided spirally inside the bobbin body 1, and cooling holes 7 are provided in both of the flange portions 2. Cooling fins 4
Can be determined in consideration of the size of the wire winding bobbin, annealing conditions, and the like. Cooling hole 7
Is circular, but need not be limited to a circular shape, and the number can be determined as appropriate. As a result, immediately after taking out the wire winding bobbin from the continuous annealing furnace, the cooled air from the cooling hole 7 enters the inside of the bobbin body 1 and the cooling fin 4
As a result, the convection and diffusion of the cooled air are actively performed, so that the temperature is rapidly lowered as compared with the conventional wire winding bobbin.

[0014] Due to the above-described matter, the temperature of the wire winding bobbin immediately after being taken out of the continuous annealing furnace is rapidly lowered, and the flat copper wire does not discolor.

[0015] A flat copper wire is wound around the wire winding bobbin,
The method of annealing is the same as the conventional method. That is, the following method is used. A wire winding bobbin in which a rectangular copper wire has not yet been wound is called an empty bobbin as described in the prior art. When a flat copper wire is wound around the bobbin body 1 of the wire winding bobbin, an empty bobbin is attached to the winding machine. At this time, a bobbin positioning hole 8 on a side surface of the wire winding bobbin is provided on the winding machine side. Insert bobbin positioning pin. The shaft of the winder is inserted into the shaft tube 3.

Then, the lower end of the flat copper wire is connected to the bobbin body 1
It is inserted into the lower terminal fixing hole 5 on the upper side and winding is started.
After the winding, the outer end of the flat copper wire is inserted into the outer terminal fixing hole 6, and the flat copper wire is sent to a continuous annealing furnace in that state in order to soften the flat copper wire. The rectangular copper wire is annealed in a continuous annealing furnace to become annealed copper and is completed as a product.

[0017]

According to the wire winding bobbin of the present invention, since the cooling hole is provided in the flange portion and the cooling fin is spirally provided inside the bobbin body, the temperature of the wire winding bobbin immediately after being taken out of the continuous annealing furnace is obtained. Is rapidly reduced and the flat copper wire is not discolored.

[Brief description of the drawings]

FIG. 1 is a partial longitudinal sectional view showing one embodiment of a wire winding bobbin of the present invention.

FIG. 2 is a side view of the wire winding bobbin of FIG. 1;

FIG. 3 is a partial longitudinal sectional view of a conventional wire winding bobbin.

FIG. 4 is a side view of the wire winding bobbin of FIG. 3;

[Explanation of symbols]

 1,11 bobbin body 2,12 flange 3,13 shaft tube 4 cooling fin 5,14 lower terminal fixing hole 6,15 outer terminal fixing hole 7 cooling hole 8,16 bobbin positioning hole

Claims (2)

[Claims] 1. A wire winding bobbin which is fed into a continuous annealing furnace after winding a wire, wherein the wire winding bobbin is provided with a cooling hole in a flange portion and a cooling fin inside a body. A wire winding bobbin characterized by the above-mentioned. 2. The wire winding bobbin according to claim 1, wherein the cooling fins are spirally provided inside the body.