JPH06191696A - Winding device for metal ribbon - Google Patents

Abstract

(57) [Summary] [Object] The present invention is capable of reliably pressing the metal ribbon discharged from the metal ribbon manufacturing apparatus at the time of forming the metal ribbon onto the take-up reel by the claws, and has high reliability. An object is to provide a band winding device. A take-up reel 11 for a metal ribbon S, an arm 22 that is rotated separately from the take-up reel about a rotation center located at the same position as the rotation center of the take-up reel, and a metal ribbon. A brush unit 23 that leads to the outer peripheral surface of the take-up reel, a claw 14 that is rotatably provided in a direction of standing up and down with respect to the outer peripheral surface of the take-up reel, and that lays down and presses the metal ribbon. The adhesive tape 20 adheres to the metal ribbon attached to the surface of the claw facing the outer peripheral portion of the take-up reel.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for winding a thin metal strip which is manufactured by, for example, a liquid quenching method and is continuously fed.

[0002]

2. Description of the Related Art Recently, amorphous magnetic alloy ribbons having excellent magnetic properties such as iron loss have been adopted for magnetic parts such as magnetic cores for high frequency power supplies. The metal ribbon made of this magnetic alloy is manufactured by a liquid quenching method in which a molten metal obtained by melting the alloy is rapidly cooled, and among them, the single roll method is adopted as the most practical manufacturing method.

According to this single roll method, a molten alloy obtained by melting an alloy is pooled, and the molten metal is jetted from a crucible onto a surface of a cooling roll provided at a lower speed thereof and rotating at a high speed through a nozzle. It is a method of rapidly cooling and continuously extracting as an amorphous alloy ribbon.

When the metal ribbon is manufactured by this single roll method, a winding device is provided in front of the metal ribbon feeding section in the metal ribbon manufacturing apparatus, and the metal ribbon is taken out from the metal ribbon manufacturing apparatus. The metal ribbon is received by the winding device and wound up.

This winding device includes a winding reel,
An arm that is rotated separately from the take-up reel about a rotation center located at the same position as the rotation center of the take-up reel, and a radius larger than the radius of the take-up reel with respect to the rotation center of the arm. A brush unit having a pair of rotatable circular brushes provided on the arm with a radius and arranged parallel to the center of rotation, and a winding reel that rotates in a direction of standing up and down with respect to its outer peripheral surface. A claw that is movably provided and that presses the thin metal strip guided to the outer peripheral surface of the take-up reel by the brush unit when it falls down.

In the metal ribbon winding device, when the metal ribbon manufacturing apparatus starts forming the metal ribbon, the arm and brush unit is positioned in front of the ribbon feeding section of the metal ribbon manufacturing apparatus and stands by. To do. The brush unit is rotated in such a direction that the pair of brushes come into contact with each other and draw in the metal ribbon. The metal ribbon sent out from the metal ribbon manufacturing apparatus is sandwiched and held between a pair of circular brushes.

After that, the arm is rotated in a direction away from the metal ribbon manufacturing apparatus, and the brush unit is carried together and moves around the take-up reel. As a result, the thin metal strip held by the pair of brushes of the brush unit is guided to the take-up reel and brought into contact with the outer peripheral surface of the take-up reel.

Here, the claws provided on the take-up reel are erected by being locked by a hooking body. When the metal ribbon comes into contact with the outer peripheral surface of the take-up reel, the claws disengage from the hooking body and fall toward the outer peripheral surface of the take-up reel to press and fix the metal ribbon on the outer peripheral surface from the outside.

Further, the cutter cuts the metal ribbon between the claw and the brush unit. Then, the take-up reel is rotated in the take-up direction, and the claws are rotated together while pressing the tip of the metal ribbon to wind the metal ribbon.

[0010]

However, such a conventional winding device has the following problems.

When the claws provided on the take-up reel fall and the metal ribbon is pressed and fixed on the outer peripheral surface of the take-up reel,
Bounces when the claw falls and collides with the outer peripheral surface of the take-up reel.

For this reason, the metal ribbon may slip through between the claw and the outer peripheral surface of the take-up reel, and the metal ribbon may not be fixed. As a result, considering that the metal ribbon is manufactured at a high speed and that the pawl is mechanically operated, the metal ribbon is removed when it slips between the pawl and the take-up reel. Continuous winding becomes impossible.

That is, the traveling speed of the metal ribbon is 20 to 3
High speed of 0 m / sec and peripheral speed of the take-up reel is 20 ~
High speed of 30 m / sec. Therefore, the centrifugal force applied to the claw when the claw collides with the outer peripheral surface of the take-up reel acts in the direction opposite to the direction in which the claw falls. In order for the claw to press the region of the metal ribbon that contacts the take-up reel, the claw needs to fall at a high speed.

For this purpose, it is necessary to apply a force such as a spring force to the claws to quickly tilt them. Then, when the claw collides with the outer peripheral surface of the take-up reel, the impact is very large.
Away from the outer peripheral surface. The thickness of the metal ribbon is 10 to 30 μm
It is quite thin, so even if the bounce of the claw is minute (0.1 mm level), when the claw separates from the outer peripheral surface of the reel, the metal ribbon may slip through between the claw and the take-up reel. Is big.

[0015]

In order to achieve the above object, a metal ribbon winding apparatus of the present invention is a winding reel for winding a metal ribbon sent from a metal ribbon manufacturing apparatus by rotation, and An arm that is rotated separately from the take-up reel about a rotation center located at the same position as the rotation center of the take-up reel, and a radius of the take-up reel with respect to the rotation center of the arm. An outer peripheral surface of the take-up reel, which is provided with a large radius in the arm portion and rotates by sandwiching the metal ribbon fed from the metal ribbon manufacturing apparatus at the time of starting the formation of the metal ribbon of the metal ribbon manufacturing apparatus. And a brush unit that is provided on the take-up reel so as to be rotatable in a direction of standing up and down with respect to the outer peripheral surface of the take-up reel, and is guided to the outer peripheral surface of the take-up reel when the take-up reel falls. A pawl for holding down, formed by including an adhesive for bonding said metal ribbon mounted on a surface of the claw facing the outer circumferential surface of the take-up reel when collapsed.

[0016]

When the metal ribbon is guided to the outer peripheral surface of the take-up reel and comes into contact therewith, the claw is tilted toward the outer peripheral surface of the take-up reel at a high speed to press the metal ribbon on the outer peripheral surface. At this time,
The claws vigorously rotate toward the outer peripheral surface of the take-up reel and fall down, colliding with the outer peripheral surface of the take-up reel and bouncing.

However, when the claw first collides with the outer peripheral surface of the take-up reel, the adhesive material attached to the inner surface of the claw adheres to the metal ribbon. Therefore, the metal ribbon is not fixed to the claws and does not slip through between the claws and the outer peripheral surface of the take-up reel. Decays. As a result, the pawls stop bouncing, and the pawls reliably press and fix the metal ribbon on the outer peripheral surface of the take-up reel.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the metal ribbon winding device of the present invention will be described below with reference to FIGS. This embodiment is applied to the case where it is used for receiving and winding an amorphous alloy ribbon sent from a metal ribbon manufacturing apparatus.

First, a schematic structure of the metal ribbon manufacturing apparatus will be described with reference to FIG. A crucible 1 has a nozzle formed in the lower portion. 2 is a cooling roll, 1 crucible
It is located directly below and is rotated at a high speed by a rotating device (not shown). Although not shown, a gas blowing nozzle is arranged above the position where the thin metal strip is peeled from the cooling roll 2. Next, the winding device of the present invention will be described with reference to FIGS. 1 to 5. This winding device is installed at a position in front of the ribbon delivery section of the metal ribbon manufacturing apparatus.

The structure of the entire winding device will be described with reference to FIGS. 4 and 5. In the figure, 10 is the main body of the apparatus. Reference numeral 11 denotes a take-up reel, and coaxial disk-shaped flanges 12 are provided on both sides of the take-up reel 11, respectively. The take-up reel 11 is attached to a rotary shaft 13 provided horizontally on the apparatus body 10. The rotating shaft 13 is rotated by a rotating device (not shown).

As shown in FIGS. 4 and 5, the take-up reel 11 is provided on one flange 12 of the take-up reel 11.
The claw 14 is provided so as to face the position where the metal ribbon S contacts on the outer peripheral surface of the claw 14. As shown in FIGS. 1 to 3, at this position, a pair of holding bodies 15 are attached at a position outside the outer peripheral surface of the take-up reel 11 outside the flange 12 with a circumferential interval. The claws 14 are arranged between the holding bodies 15. A pair of holders 1
The portion of the flange 12 facing the gap of No. 5 is the cutout portion 12a.
Are formed.

The base end of the claw 14 is rotatably supported by a shaft 16 provided on a pair of holders 15. As a result, the pawl 14 causes the take-up reel 1 about the shaft 16.
It is rotatably provided in a direction of standing up and down with respect to the outer peripheral surface of 1, and when it falls down, it makes contact with the outer peripheral surface of the take-up reel 11 in a transverse direction.

That is, the pawl 14 passes through the notch 12a of the flange 12 when it is rotated in the standing and falling directions. The base end of the claw 14 is bent and extended toward the outside of the flange 12. A tension coil spring 18 is stretched between an extension portion of the claw 14 and a pin 17 provided on the pair of holding bodies 15, and the spring 18 is provided on the outer peripheral surface of the take-up reel 11 with respect to the claw 14. The force is applied in the direction to lie down against. A hook 19 is provided between the pair of holders 15 to hold the claw 14 at a position upright from the outer peripheral surface of the take-up reel 11.

A double-sided adhesive tape 20, which is an example of an adhesive material, is attached to the portion of the claw 14 that faces the outer peripheral surface of the take-up reel 11 when it falls down.
That is, the double-sided adhesive tape 20 is used as the take-up reel 1.
It has a width corresponding to the width of the outer peripheral surface of No. 1, one adhesive surface is adhered to the claw 14, and the other adhesive surface is exposed to the outside.

Further, a vibration absorber 21, for example, a vibration-proof rubber is attached to the outer peripheral surface of the take-up reel 11 where the claw 14 collides. That is, the concave portion 11a formed in the outer peripheral surface of the take-up reel 11 along the width direction.
The vibration absorber 21 is fitted in and fixed to.

A unit arm 22 has a length larger than the radius of the flange 12. One end of the arm 22 is provided at the same position as the rotating shaft 13 of the take-up reel 11 and is attached to a rotating shaft (not shown) that is rotated independently of the rotating shaft 13. This rotating shaft is rotated by a rotating device (not shown).

Reference numeral 23 is a brush unit. The brush unit 23 is configured as shown in FIG. 24
Is a plate which is rotatably supported by a rotary shaft (not shown) in the unit arm 22 so as to be always in a horizontal state.

Reference numeral 25 denotes a pair of circular brushes, which are formed by radially arranging a large number of bristles around the central axis.
The circular brushes 25 are held by a pair of brush arms (not shown) arranged so as to face the plate 24, and the pair of circular brushes 25 are provided so that their rotation axes are parallel and horizontal.

Each brush arm is adapted to be opened and closed by an air cylinder (not shown) provided on the plate 24. The pair of circular brushes 25 are rotated by a rotary drive device including a motor provided on the plate 24.

A take-up reel 11 is attached to the apparatus main body 1.
A drive mechanism (not shown) is provided opposite to the claw 14 to operate the hooking body 19 that holds the claw 14 in the standing position. The drive mechanism is, for example, a solenoid. Also,
The apparatus body 1 is provided with a cutter (not shown) for cutting the metal ribbon pressed on the outer circumference of the take-up reel 11. The operation of the metal ribbon winding device thus configured will be described.

Before forming the metal ribbon, as shown in FIG. 5, the arm 22 is rotated toward the front of the ribbon delivery portion of the metal ribbon manufacturing apparatus (below the take-up reel 11) to move the arm. The plate 24 attached to 22 is made to face the ribbon delivery section of the metal ribbon manufacturing apparatus.

As a result, the pair of circular brushes 25 held by the pair of brush arms provided in the brush unit 23 are located in the vicinity of the cooling roll 2 at the position A, and the ribbon feeding section of the metal ribbon manufacturing apparatus is operated. To face.

In this case, the air cylinders provided in the brush unit 23 are driven to rotate the pair of brush arms so as to spread outward, so that the pair of circular brushes 2
5 is widened until a predetermined interval through which the metal ribbon S discharged from the ribbon delivery unit of the metal ribbon manufacturing apparatus can pass is secured. Further, the pair of circular brushes 25 are rotated in the X direction for drawing the metal ribbon S at a peripheral speed higher than the peripheral speed of the cooling roll 2 of the metal ribbon manufacturing apparatus.

Then, in the apparatus for manufacturing a metal ribbon, the metal ribbon is formed and fed from the ribbon feeding section as follows. The molten metal obtained by melting the magnetic alloy is stored inside the crucible 1,
The molten metal is ejected from the nozzle toward the surface of the cooling roll 2 located below. The rotating device of the cooling roll 2 rotates the cooling roll 2 in the arrow direction at a predetermined peripheral speed.

The molten metal ejected from the nozzle comes into contact with the surface of the cooling roll 2 and is rapidly cooled to be taken out as a continuous ribbon S. In order to separate the metal ribbon S from the cooling roll 2 and discharge it into the air, a high-pressure gas blown from a gas blowing nozzle (not shown) is blown onto the metal ribbon S.

After the molten metal is jetted, the gas blowing pressure is adjusted so that the discharge angle of the metal ribbon S from the cooling roll 2 passes between the pair of circular brushes 25 waiting in the open state. To do. By this operation, the metal ribbon S is peeled off from the cooling roll 2 downward in the discharging direction, and is fed from the metal ribbon feeding section of the metal ribbon manufacturing apparatus. The tip of the metal ribbon S sent out from the ribbon delivery unit of the metal ribbon manufacturing apparatus passes between a pair of open circular brushes 25.

After this operation is completed, the pair of brush arms is rotated by the air cylinder so as to be narrowed toward the inside, and is closed until the pair of circular brushes 25 sandwich the metal ribbon S and close. As a result, the pair of circular brushes 25 sandwich and hold the metal ribbon S, and each rotation causes the metal ribbon S to move.

Thereafter, as shown in FIG. 5, the arm 22 is rotated in the Y direction from the lower position A to the upper position B by means of a rotating device (not shown) around the rotation axis, and the plate 24 and the pair of circular brushes 25 are rotated. Take-up reel 11
Draw a circular locus centering around and revolve. As a result, the pair of circular brushes 25 guide the sandwiched metal ribbon S to the outer peripheral surface of the take-up reel 11 and contact the surface along the circumferential direction. The plate 24 is rotated with the rotation of the arm 22 to maintain the vertical state.

Thereafter, the claw 14 provided on the flange 12 operates to move the portion of the metal ribbon S held by the pair of circular brushes 25, to the metal ribbon S which is in contact with the outer peripheral surface of the take-up reel 11. Hold down the part. The portion of the metal ribbon S that is in contact with the outer peripheral surface of the take-up reel 11 is fixed to the take-up reel 11 by cutting and cutting with a cutter.

That is, the claw 14 provided on the take-up reel 11 is first provided with a hook 19 as shown in FIGS.
And is erected from the outer peripheral surface of the take-up reel 11.

The metal ribbon S is taken up by the take-up reel 11
When it comes into contact with the outer peripheral surface of the nail within a predetermined range, as shown in FIG.
4 is moved from the claw 14 by the drive mechanism so as to release the claw 14 from the latching by the latching body 19.

As a result, the pawl 14 is pulled by the spring 18 and pivots about the shaft 16 in the direction in which the pawl 14 falls toward the outer peripheral surface of the take-up reel 11. The rotated claw 14 collides with the outer peripheral surface of the take-up reel 11 and presses the metal ribbon S in contact with the outer peripheral surface from the outside.

At this time, the claw 14 vigorously rotates toward the outer peripheral surface of the take-up reel 11 due to the spring force of the spring 18 and falls, and collides with the outer peripheral surface of the take-up reel 11 to bounce. However, when it collides with the outer peripheral surface of the take-up reel 11 for the first time, the adhesive surface of the adhesive tape 20 attached to the inner surface of the claw 14 contacts the metal ribbon S and adheres to the metal ribbon S.

Therefore, the metal ribbon S does not slip through between the claw 14 and the outer peripheral surface of the take-up reel 11,
Next, when the claw 14 collides with the outer peripheral surface of the take-up reel 11, the bound is attenuated due to the presence of the metal ribbon S. Therefore, the bouncing of the claw 14 is stopped and the claw 14 reliably presses and fixes the metal ribbon S on the outer peripheral surface of the take-up reel 11.

When the claw 14 falls down, it hits the vibration absorber 21 attached to the outer peripheral surface of the take-up reel 11. Therefore, the impact of the claw 14 is relieved and the bounce is attenuated,
The claws 14 contribute to enhancing the effect of reliably pressing the metal ribbon 13. After pressing the metal ribbon S on the outer peripheral surface of the take-up reel 11 in this manner, the metal ribbon S between the claw 14 and the brush unit 23 is cut by the cutter.

Then, the take-up reel 11 is driven by the motor.
Is rotated in the direction of the arrow shown. The claw 14 rotates with the take-up reel 11 about the central axis of the take-up reel 11. The metal ribbon S pressed by the claws 14 is wound around the outer peripheral surface of the take-up reel 11 in the circumferential direction.
After that, the metal ribbon S discharged from the cooling roll 2 is continuously wound by the winding reel 11.

As a specific example, the case where the double-sided adhesive tape 20 of the claw 14 is attached and the metal ribbon S is wound 10 times, and the case where the metal ribbon S is wound 10 times without being attached are shown. As a result of comparing the success rates of pressing the metal ribbon S by the nails 14, the former had 10 successes, but the latter had 0 successes. It should be noted that the present invention is not limited to the above-described embodiments, but can be modified in various ways. For example, the adhesive material is not limited to a double-sided adhesive tape, and any adhesive material may be used.

[0048]

As described above, according to the winding apparatus for a metal ribbon of the present invention, the metal ribbon discharged from the metal ribbon manufacturing apparatus at the time of forming the metal ribbon is wound around the outer circumference of the winding reel 11 by the claw. When pressing on the surface, by adhering the metal ribbon with the adhesive provided on the nail, it is possible to prevent the metal ribbon from slipping through and securely press it onto the take-up reel. Winding can be done.

[Brief description of drawings]

FIG. 1 is a side view showing a claw in an upright position in a winding device according to an embodiment of the present invention.

FIG. 2 is a front view of the same.

FIG. 3 is a side view showing the claw in the prone position.

FIG. 4 is a schematic configuration diagram showing a winding device of the embodiment.

FIG. 5 is an explanatory view showing a winding process of the metal ribbon in the winding device.

[Explanation of symbols]

11 ... Take-up reel, 14 ... Nail, 20 ... Adhesive tape,
22 ... Arm, 23 ... Brush unit, S ... Metal ribbon.

Claims (1)

[Claims] 1. A take-up reel that winds a metal ribbon fed from a metal ribbon manufacturing apparatus by rotation, and the take-up reel around a rotation center located at the same position as the rotation center of the take-up reel. An arm which is rotated separately, and a metal ribbon forming start of the metal ribbon manufacturing apparatus which is provided on the arm with a radius larger than the radius of the take-up reel with respect to the rotation center of the arm. Sometimes a brush unit that rotates by sandwiching the metal ribbon sent from the metal ribbon manufacturing apparatus and guides it to the outer peripheral surface of the winding reel, and a brush unit that rotates in a direction of standing up and down with respect to the outer peripheral surface of the winding reel. A claw that is movably provided and that presses the metal ribbon guided to the outer peripheral surface of the take-up reel when lying down, and a claw that faces the outer circumferential surface of the take-up reel when lying down. An apparatus for winding a metal ribbon, which is provided with an adhesive material attached to the metal ribbon.