JPH0436568B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a winding method and device for automatically winding small magnetic heads for electronic computers, VTRs, and other parts.

(Prior Art and Problems) The core size of small magnetic heads for storage devices of electronic computers has become extremely small.

FIG. 6 shows an example of the shape of this type of magnetic head core, where 1 is a core and 2 is a hole for winding.

FIG. 7 shows an example of a wire inserted into the winding hole 2 and wound. The width W of this wire is, for example, about 0.13 mm, and the longitudinal dimension X of the winding hole 2 is 0.58 mm, which is very small, so there is considerable ingenuity in automatic winding.

FIG. 8 shows a conventional winding device. This winding device includes a feed roller 6 that sends out the wire 5, and a guide chuck 7 that guides the wire 5 coming out from the roller 6.
and a suction pipe 8 that sucks the wire 5 that has passed through the winding hole of the workpiece (core) 10.

In this case, the wire rod 5 twisted by the feed roller 6 is guided by the guide chuck 7 and inserted into the workpiece 10. However, if the tip of the wire rod 5 is bent even slightly, it becomes impossible to insert the wire rod 5, so the wire rod 5 is inserted into the workpiece 10. The tip of the wire was cut off each time.

However, even if you try to insert the wire after cutting the tip of the wire in this way, there is a drawback that it will be difficult to insert the wire if the hole for winding the core of the workpiece is small, such as in a small magnetic head for a computer. Ta.

(Means for Solving the Problems) In view of the above points, the present invention aims to provide a winding method and device that can reliably insert a wire into even a very small winding hole. .

The wire winding method of the present invention includes a wire hole in which the inner surface of the tip portion becomes a conical surface as it faces the tip opening, and an obtuse angle with respect to the traveling direction of the wire in the wire hole that communicates with the wire hole. Using a nozzle having an air suction hole for sucking air in the same direction and an air suction pipe facing the opening at the end of the wire hole, the wire rod hole is sucked by negative pressure from the air suction hole. sending out the wire from the tip opening of the wire hole using the air suction force generated in the wire rod hole;
The wire rod is inserted into a winding hole of a workpiece, and the wire passing through the winding hole is sucked into the inside of the pipe by the air suction pipe.

In addition, the wire winding device of the present invention has a wire hole in which the inner surface of the tip portion is a conical surface toward the tip opening, and through which the wire is introduced and sent out; a nozzle having an air suction hole that sucks air in a direction making an obtuse angle with respect to the traveling direction of the wire rod; and a nozzle having an air suction hole that sucks air in a direction forming an obtuse angle with respect to the traveling direction of the wire rod; The wire rod is configured to include an air suction pipe that sucks the wire rod inserted into the wire rod, and a means for moving the air suction pipe in the traveling direction of the wire rod.

(Function) In the present invention, since the wire is sent out from the tip of the nozzle using air suction force, the wire does not bend during the nozzle delivery process, and the wire can be reliably inserted into even a small winding hole. Therefore, it becomes possible to automatically wind a small magnetic head for an electronic computer, which has conventionally been difficult to automatically wind. Further, unlike conventional devices, it is unnecessary to cut the tip end of the wire each time before insertion, and the mechanism can be simplified. Furthermore, the nozzle allows smooth feeding of the wire even at high speeds, making it possible to speed up the winding work.

(Example) Hereinafter, an example of the winding method and device according to the present invention will be described with reference to the drawings.

1 and 2 show the configuration of the main parts of the present invention. In these figures, wire rod 5 is inserted from the wire rod supply side.
The nozzle 15 that introduces the workpiece and sends it out to the workpiece 10 side (for example, the magnetic head core in FIG. 6) has two holes in the center.
It is a divided structure, and the nozzle half body 15A,
It consists of 15B. These nozzle halves 15A and 15B are respectively mounted on a slide base 16.
A, 16B fixed on each slide pedestal 16
A and 16B are supported by a support member 17 so as to be slidable in the direction of arrow P in FIG. Each of the pedestals 16A, 16B is provided with a roller 18 as a cam follower, and when the nozzle opening/closing arrow 19 moves forward and enters between the rollers 18, each of the pedestals 16A, 1
6B is opened, so that the nozzle 15 is separated into two nozzle halves 15A, 15B. Note that when the nozzle opening/closing arrow string 19 is in the retracted position, the nozzle halves 15A, 1 are moved by a force such as a spring (not shown).
5B are butted together and become one body.

As shown in the sectional view of FIG. 3, the nozzle 1
5, a wire rod hole 20 formed when the two halves 15A, 15B are integrated, and a plurality of air suction holes 21 communicating with the wire rod holes 20 are formed. Vacuum hoses 22 are connected to each of them. The tip of the vacuum hose 22 is connected to a negative pressure source such as a vacuum pump.
Here, the inner surface of the tip end of the wire rod hole 20 is a conical surface 23 in order to accurately define the feeding position of the wire rod 5, and the direction of movement of the wire rod 5 in the wire rod hole 20 (arrow in FIG. Q) and the air suction direction of the air suction hole 21 (arrow R in FIG. 3) form an obtuse angle. This is to prevent the wire 5 itself from being drawn into the air suction hole 21.

On the other hand, a slider 26 is slidably supported by a shaft body 25 arranged along the feeding direction of the wire rod 5.
An air suction pipe 27 is disposed so as to face the opening at the tip of the wire hole 20 with the workpiece 10 in between. A pipe vacuum hose 28 is connected to this air suction pipe 27.
The slider 26 functions as a means for moving the air suction pipe 27 in the advancing direction of the wire rod 5, and as shown in FIG. Tightening chuck 2 that pulls the wire 5 with constant tension
9 is provided.

As shown in FIGS. 4 and 5, an insertion hand 30 is provided for carrying the wire 5 that has passed through the winding hole of the workpiece 10 to the wire supply side again.

In the configuration of the above embodiment, FIGS.
As shown in the figure, the wire 5 inserted into the rear end side of the wire hole 20 of the nozzle 15 is drawn into the nozzle by the air suction force generated in the wire hole 20 by suctioning the air suction hole 21 with a negative pressure source. The tip of the wire 5 is accurately positioned by the conical surface 23 at the tip of the wire hole 20, and the wire rod 5 is inserted into the workpiece 10 through the tip opening of the wire hole 20.
The wire is sent out towards the winding hole.

The tip of the wire inserted into the winding hole of the workpiece 10 is connected to an air suction pipe 27 that is close to and facing the tip opening of the wire hole 20 across the workpiece 10.
It is sucked inside and pulled. The air suction pipe 27 moves in the direction of arrow S while sucking the wire 5 as the slider 26 moves.

Thereafter, the straining chuck 29 holds the wire 5 and continues to move in the direction of the arrow S as the slider 26 moves as shown in FIG. At this time, the nozzle opening/closing arrow string 19 moves forward and the slide bases 16A, 1
6B and split the nozzle 15 into two halves 15.
Separate into A and 15B. As a result, feeding of the wire rod 5 on the nozzle side is stopped, and the ironing chuck 2
9 applies a constant tension to the wire 5 that has passed through the workpiece 10.

After applying tension to the wire rod 5 with the ironing chuck 29 as shown in FIG. 4, the insertion hand 3 at the T position as shown in FIG.
0, the wire rod 5 is held near its tip, and the wire rod 5 is rotated along the path indicated by the dashed line U and brought to position V, which is the wire supply side. When the insertion hand 30 is in the V position, the tip of the wire is introduced into the nozzle 15 again as shown in FIGS. 1 and 2, and the above-described operation is repeated.

(Effects of the Invention) As explained above, in the present invention, the wire is sent out from the nozzle tip using air suction force and inserted into the winding hole of the workpiece, so the following effects can be achieved. Obtainable.

(1) The wire 5 does not bend while passing through the nozzle 15, and the wire can be fed out accurately, and automatic winding is possible even in small magnetic heads for electronic computers, which has been difficult in the past. Further, there is no need for the step of cutting the ends of the wire rods one by one.

(2) The structure is simple, and the mechanism on the wire supply side is also simple.

(3) The wire can be smoothly fed out by the nozzle 15, and the speed of automatic wire winding can be increased.

[Brief explanation of drawings]

Fig. 1 is a plan view showing an embodiment of the winding method and device according to the present invention, Fig. 2 is a side view of the same, Fig. 3 is a plan cross-sectional view of the nozzle portion, and Fig. 4 is an air suction pipe and ironing chuck. 5 is an explanatory diagram showing the operation of the insertion hand, FIG. 6 is an explanatory diagram showing an example of a magnetic head core, FIG. 7 is a sectional view showing an example of a wire, and FIG. 8 is an explanatory diagram showing the operation of the insertion hand. FIG. 2 is a plan view showing a conventional winding device. 10...Workpiece, 15...Nozzle, 20...Wire rod hole, 21...Air suction hole, 27...Air suction pipe, 29...String chuck.

[Claims]

1. In a metallized dielectric using a thin film of aluminum or an aluminum-based alloy as an electrode, a margin is formed in the metallized dielectric by oxidizing a part of the electrode using glow discharge in low pressure. Method for forming electrode margins in metallized dielectrics.

Claims (1)

Place.