JPS5817072A - Toroidal wire winder - Google Patents

Abstract

PURPOSE:To wind a wire tightly without any sagging, by a method wherein a DC motor for a wire supply bobbin is rotated in the direction opposite to the direction for supplying the wire and a guide pulley is displaced at the time of supplying the wire, in a device for winding a small-diametered wire. CONSTITUTION:The wire 2 supplied from the wire supply bobbin 3 is wound around a rotated cylindrical drum 1 through the guide pulley 4 by rotating a ring 5. In this case, the DC motor 14 for the bobbin 3 is rotated in the direction opposite to the direction for supplying the wire, whereby the predetermined tension is imparted to the wire 2. In addition, when the wire 2 comes in contact with the inside surface of the drum 1, a solenoid 20 is energized to attract the pulley 4 in the direction of an arrow, whereby the pulley 4 is pressed against the wire being wound already. Accordingly, the wire can be tightly wound around the drum 1 without any breaking or loosening.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a toroidal winding machine for winding thin wire with a diameter of 0.1 ++ u or less.

FIG. 1 shows a schematic diagram of a conventional toroidal winding machine.

The feed line bobbin 3, on which the wire rod 2 has been wound in advance, is rotatably mounted on the side surface of the ring 5.
Figure 2 is a sectional view of the installed state) Ring 5 and cylindrical drum 1
By rotating the wire rod 2, the wire rod 2 is wound around the cylindrical drum 1 in a toroidal shape. At this time, the wire rod 2 is fed through a guide pulley 4 provided on the side surface of the ring 5 for positioning the wire rod 2 and preventing it from sagging. The guide pulley 4 is configured to be able to move along the side surface of the ring 5 over a certain distance.

The supporting seat 20 of the guide pulley is housed in a groove 6 formed in the ring 5 (FIG. 3) and the spring 7
The leaf spring 8 connected to the feed line bobbin 3 is arranged to hold the wire rod 217c and provide tension to the wire rod 217c.The gear 12 is driven by a drive source (not shown) and rotates the ring 5. on the other hand.

The cylindrical drum drive shaft 13 is interlocked with the rotation of the ring 5 and rotates at a constant reduction ratio. Further, the spring 7 is applied to the cylindrical drum 1 by the rotation of the ring 5, and the wire rod 2. .

This is to ensure that the wire 2 is not sagged when winding the wire, and the relationship is shown in Figures 4 and 5. Figure 4 shows the feeding state of the wire 2. , as the ring 5 rotates, the circle of the wire 2? Since the distance from the end 9 of the ram 1 to the feed line bobbin 3 increases, the feed line bobbin rotates in the feed line direction against the leaf spring 8, and the spring 7 is rotated by the action of this leaf spring 80. Coupled with this, it works to keep the tension of the wire rod 2 stretched by a predetermined length constant.On the other hand, when the feed line condition becomes the state shown in FIG. 5, the distance between the feed line bobbin 3 and the end 9 becomes shorter. The supply line from the supply line bobbin 3 is stopped by the action of the leaf spring 8, while the guide pulley 4 is returned in the direction in which the spring 7 is compressed and operates to keep the tension of the wire 2 constant.

In such a conventional toroidal winding machine, when feeding wire,
Since the wire is fed and the tension of the wire is maintained by balancing the friction caused by the leaf spring and the spring force caused by the spring IJ7f, the following problems occur.

First, when the diameter of the wire becomes thinner than 0.1 fin,
Since the tensile strength of the wire rod is reduced, it is necessary to use leaf springs with low friction force and low Hi. Furthermore, when such a leaf spring is used, the friction between the support seat of the guide pulley and the groove of the ring causes slack at the feed line, causing a problem that the leaf spring cannot be rolled up evenly. Furthermore, when winding a large cylindrical drum, the length of the wire feed line increases as the ring rotates, making it difficult to prevent sagging, and the wire is likely to break. There were also drawbacks such as unevenness.

Second, when it is necessary to wind the wire rods in a uniform manner without any gaps,
In the conventional method, the entire device must be manufactured with high precision, and the ratio of the rotational speed of the ring to the rotational speed of the cylindrical drum must be precisely controlled, making the device expensive and difficult to adjust. There was °.

The present invention was made in order to solve these drawbacks.In a toroidal 4M machine having a feed line bobbin and a guide pulley on a ring, the feed line bobbin is attached to the motor shaft fixedly attached to the ring. and the guide pulley is attached to a plunger of a solenoid fixed to the ring, and when the line is being fed, the y motor is rotated in a direction opposite to the line feeding direction, and the solenoid is activated at a desired timing. This invention provides a toroidal winding machine that is characterized by being energized, and will be described in detail below with reference to the drawings.

FIG. 6 is a block diagram of a toroidal winding machine according to an embodiment of the present invention, and FIG. 7 is a block diagram of a feed line bobbin section according to the device of the present invention.
FIG. 8 shows a configuration diagram of a guide pulley unit according to the device of the present invention. Here, 14 is a small Y-Mo.

The feed line bobbin 3 is attached to the shaft. 15 is an electrode plate installed on the side of the ring 5 via an insulating plate 16, 17 is a brush for supplying power, and 18° and 19 are the parts of the X motor 14. One side of the power supply terminal is connected to the electrode plate 15, and the other side is connected to the ring 5 at ground potential. In addition, X motor 1
The rotation direction of the wire rod 4 is set to be opposite to the feeding direction of the wire rod 2. Further, 20 is a solenoid, and the guide pulley 4 is attached to the plunger 21.

'22 is a stopper, 23 is a coil spring, 24 is an electrode plate provided on the side surface of the ring 5 via an insulating plate 29, and SO
31 is a brush for supplying power to the solenoid 20;
．． 32 is the power terminal of the solenoid 20, and one side is the electrode plate 24
and the other is connected to the ring 5 at ground potential.

Next, the operation of the toroidal winding machine of the present invention will be explained.

In the toroidal winding machine according to the present invention, there is provided a feed line bo.

When the bin 3 is in the feeding state, that is, when the feeding bobbin 3 is in the positional relationship shown in FIG. 4 with respect to the cylindrical drum 1, the wire 2 is pulled out against the rotational force of the It is lined. In other words, the shaft of the X motor 14 is rotated in the opposite direction to the rotational direction.

Next, when the feeding line bobbin 13 assumes the positional relationship shown in FIG. 5, the feeding line bobbin 3 is rotated in the rotational direction of the X motor 14, that is, it is in the unwinding state, thereby preventing the wire rod 2 from sagging.

In this way, no matter where the feed line bobbin 3 is located, the wire rod 2 can be fed while maintaining the tension constant τ without sagging. Note that the X motor 14 in the device of the present invention
Although the X motor 14 is always used in an overloaded state, it is preferable to use a constant current power source as the drive power source for the X motor 14 in order to prevent problems caused by this.

In the toroidal winding machine according to the present invention shown in FIG.
As the ring 5 and the cylindrical drum 1 rotate, the wire 2 is fed from the feed pin 3 via the guide pulley 4 while maintaining a constant tension and wound around the cylindrical drum 1. The wire rod 2 is wound around the cylindrical drum 1 closely and without gaps by the action of the guide pulley shown in FIG.

This effect will be explained with reference to FIGS. 9 and 10. solenoid 2
0 is in the OFF state, the position of the guide pulley 4 is the position 25 (9th, 10th) immediately before the wire 2 touches the inner surface of the cylindrical drum 1.
(Fig. 10) is arranged so that the upper end 9 of the cylindrical drum 1 is spaced apart by χ from the position 26 (Fig. 10) in contact with the inner surface. As the ring 5 rotates, the wire 2 comes into contact with the inner surface of the cylindrical drum 1, but at this time the solenoid 2
When 0 is turned ON, the guide pulley 4 is attracted in the direction of the arrow,
The wire 2 hits the already wound wire.

The on state of the solenoid 20 is at position 28 shown in FIG.
It continues until the wire rod 2 reaches , and then turns off.

By turning off the solenoid 20, the guide pulley 4 returns to its original position, but the wire 2 does not move due to friction with the cylindrical drum 1 and remains tightly wound. In addition, Section 9.10
Although the figure shows the upper end of the cylindrical drum 1, the solenoid 20 is also operated at the lower end in the same manner to tightly roll up the cylindrical drum 1. Turn on solenoid 20 like this.
, OFF, it is possible to wrap the wire rod 2 around the cylindrical drum 1 closely and without any gaps. In addition,
The solenoid 20 moves the feed line bobbin 4 and moves the wire rod 2 several fi
It is sufficient to move the ring 5 vertically, and the type of attachment to the ring 5 does not matter as long as it passes through the cylindrical drum 1.

Further, (a) OFF control of the solenoid 20 can be achieved by constructing the electrode plate 24 attached to the ring 5 with an insulating material for the portions other than (a) when in operation. Note that the present invention is not limited to this, and it may be turned on and off electrically by a control circuit (not shown) or the like.

By the way, to describe an example of use in the device of the present invention, the wire rod is a plastic optical fiber with a diameter of 76 μm, the winding diameter Db of the cylindrical bobbin is 40 mm, the height is 135 fil,
Use a ring with an inner diameter of 1oosn, and the outer diameter of the ring is 33mm.
011. When winding the wire at rotational speeds of 15 r, p, m, using a motor with a torque of 20 gr and cmO, the wire feed tension can be kept constant at 10 gr without breaking the wire. I was able to wrap it closely together without any gaps.

As explained above, according to the present invention, 0.1 tsyx
Ability to wind even thin wires below F into a toroidal shape without breaking, sagging, and closely aligning without gaps; suitable for manufacturing circular/linear conversion devices for laser scanners and toroidal cores that require thin wires. It is extremely effective when applied.

[Brief explanation of drawings]

Figure 1 is a schematic configuration diagram of a conventional toroidal winding machine, Figure 2 is a cross-sectional view of a conventional feeder bobbin installed, Figure 3 is a schematic configuration diagram of a conventional guide pulley, and Figures 4 and 5 are wire rods. FIG. 6 is a block diagram of a toroidal winding machine according to an embodiment of the present invention, FIG. 7 is a block diagram of a feed line bobbin section according to an apparatus of the present invention, and FIG. FIG. 9 is a block diagram of a guide pulley unit according to the invention device, and FIGS. 9 and 10 are diagrams for explaining the operation of FIG. 8. Patent applicant Iwasaki Tsushinki Co., Ltd.

Claims (1)

[Claims] In a toroidal winding machine having a feed line bobbin and a guide pulley on a blowfish, the feed line bobbin is a shaft of an X motor fixed to the ring. and the guide pulley is attached to the plunger of a solenoid fixed to the ring', and when the line is being fed, the X motor is rotated in a direction opposite to the line feeding direction, and the solenoid is rotated as desired. A toroidal winding machine characterized by energizing at the timing of .