JPS62137816A - Winding method and apparatus - Google Patents

Abstract

PURPOSE:To provide winding method and apparatus, in which insertion of wire can be ensured even in very small winding hole, by utilizing a nozzle, wherein the wire is sent out of a tip utilizing pneumatic sucking force and the wire is inserted in the winding hole of a work. CONSTITUTION:A piece of wire 5 is introduced from a wire feeding side and sent to the side of a work 10 through a nozzle 15. The nozzle can be divided into two parts of half-split bodies 15A and 15B of the nozzle. The half-split bodies 15A and 15B of the nozzle are fixed to slide tables 16A and 16B. The slide tables 16A and 16B are slidably supported by supporting members so that the tables can be slidden in the direction P, which is perpendicular to the advancing direction of the wire 5. Rollers 18 are provided in the tables 16A and 16B as cam followers. When a nozzle opening and closing arrow chord advances and enters between the rollers 18, the tables 16A and 16B are opened. Thus the nozzles 5 is separated into the half-split bodies 15A and 15B of the nozzle.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an @ wire method and apparatus for automatically winding small magnetic helads and other parts for electronic computers and VTRs.

(Prior Art and Problems) A small magnetic head for a storage device of an electronic meter f[ has a core size that is extremely small.

Figure 6 shows an example of the shape of this type of magnetic herad core.
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, 0.13w
m, and the longitudinal dimension X of the winding hole 2 is 0.58
Since it is very small in m111, the automatic winding has a unique twist.

Figure 18 shows a conventional winding device. This winding device includes a feed roller 6 that sends out the wire 5, a guide chuck 7 that guides the wire 5 coming out from the roller 6, and a workpiece (near 7).
It is equipped with a suction pipe 8 that sucks the wire rod 5 that has passed through the ten winding holes.

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 1o.
If there is even a slight bend in the tip, it will not be possible to insert it.
Before inserting the wire 5 into the workpiece 16, 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 present invention solves the above problems by using a nozzle that uses air suction to send out a wire from its tip and insert it into a winding hole of a workpiece.

(Function) In the present invention, since the wire is sent out from the tip of the nozzle using air suction force, there is no bending of the wire during the nozzle delivery process, and the wire can be inserted reliably into even small winding holes. Therefore, automatic winding of a small magnetic head for use in electronic calculations, which has conventionally been difficult to automatically wind, becomes possible. Further, the operation of cutting the tip end of the wire each time before insertion as in the conventional device is unnecessary, and the mechanism can be simplified. Furthermore, the nozzle allows the wire to be fed out smoothly 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.

Figures 1 and 2 show the configuration of the main parts of the present invention. In these figures, the wire 5 is introduced from the wire supply side and sent out to the workpiece 10 side (for example, the magnetic radial core shown in Fig. 6). Body 15A.

It consists of 15B. These nozzle halves 15
A and 15B are fixed on slide pedestals 16A and 16B, respectively, and each slide pedestal 16A.

16B is supported by a support member 17 so as to be slidable in the direction of arrow P in FIG. Each of the pedestals 16A and 16B is provided with a roller 18 as a cam 7 lower, and these rollers 18
When the nozzle opening/closing arrow 19 moves forward and enters between them, each pedestal 16A, 16B opens, and therefore the /zzle 15 is separated into two nozzle halves 15A, 15B. Note that when the nozzle opening/closing arrow 19 is in the retreat position, the nozzle halves 15A and 15B are butted together and integrated by the force of a spring or the like (not shown).

As shown in the cross-sectional view of FIG. 3, the center of the nozzle 15 has a wire rod hole 20 formed when the two halves 15A and 15B are integrated, and a wire hole 20 that communicates with the wire rod hole 20. A plurality of air suction holes 21 are formed, and the air suction holes 21 include:
A vacuum hose 22 is connected to each. 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 advancing direction of the wire rod 5 in the wire rod hole 20 (
arrow Q) in FIG. 3 and the air suction direction of the air suction hole 21 (
f53 (arrow R) forms an obtuse angle. This is to prevent the wire 5 itself from being drawn into the air suction hole 21.

On the other hand, an air suction pipe 27 is attached to a slider 26 that is slidably supported by a shaft 25 disposed along the feeding direction of the wire rod 5, and an air suction pipe 27 is inserted into the tip opening of the wire rod hole 20 with the workpiece 10 in between. It is arranged to face the A pipe vacuum hose 28 is connected to this air suction pipe 27.

Also, on the stay 26 side, there is a pipe 27 as shown in Figure 4.
An ironing chuck 29 is provided which grips the wire 5 and pulls the wire 5 with a constant tension when the wire is retreated.

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

In the configuration of the above embodiment, the wire 5 inserted into the rear end side of the wire hole 20 of the seven nozzles 15 as shown in FIGS. 1 and 2 is introduced into the nozzle by negative pressure due to air suction. The tip of the wire 5 is accurately positioned by the conical surface 23 at the tip of the wire hole 20, and the workpiece 10 is inserted through the tip opening of the wire hole 20.
The wire is sent out toward the winding hole.

The tip of the wire inserted into the winding hole of the workpiece 10 is drawn into and pulled into an air suction pipe 27 that is located close to and opposite to the tip opening of the wire hole 20 with the workpiece 10 sandwiched therebetween. 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 19 moves forward to open the slide bases 16A and 16B, and the 7 nozzles 15
Two halves 15A.

Separate into 15B. As a result, feeding of the wire rod 5 from the nozzle side is stopped, and the workpiece 1 is stopped by the ironing chuck 29.
A constant tension is applied to the wire 5 that has passed through zero.

After applying tension to the wire 5 with the squeezing chuck 29 as shown in FIG. 4, the insertion hand 30 at the T position in FIG. and bring it to position V, which is the wire supply side. Insertion hand 3
When 0 becomes position ■, the tip of the wire is again introduced at 77:15 as shown in FIGS. 1 and 2, and the two series of operations are 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 seven nozzles 15, and the wire can be fed out accurately, and automatic winding is possible even in small magnetic heads used as substitutes for electronic calculations, 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 PIi structure on the wire supply side can be 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]

6 Fig. 1 is a plan view showing an embodiment of the winding method and device according to the present invention, Fig. 12 is a side view of the same, Fig. 3 is a plan cross-sectional view of the nozzle portion, and Fig. f:tS4 is an air suction pipe. FIG. 5 is an explanatory diagram showing the operation of the chuck, FIG. 5 is an explanatory diagram showing the operation of the insertion handle, FIG. 6 is an explanatory diagram showing an example of a magnetic helad core, FIG. 7 is a sectional view showing an example of a wire rod, FIG. 8 is a plan view showing a conventional winding device. DESCRIPTION OF SYMBOLS 10... Workpiece, 15... Nozzle, 20... Wire rod hole, 21... Air suction hole, 27... Air suction pipe, 29... Ironing chuck.

Claims (4)

[Claims] (1) A winding method characterized by feeding the wire from the tip of a nozzle using air suction and inserting it into a winding hole in a workpiece. (2) A nozzle having a wire rod hole for introducing and sending out the wire rod and an air suction hole communicating with the wire rod hole, and an air suction pipe facing the tip opening of the wire rod hole. winding device. (3) The winding device according to claim 2, wherein the inner surface of the tip end of the wire rod hole is a conical surface. (4) The winding device according to claim 2, wherein the advancing direction of the wire in the wire hole and the air suction direction of the air suction hole form an obtuse angle.