JPH0128646B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for winding a freshly produced quenched ribbon, and more specifically, to a method for reliably winding a quenched ribbon that is conveyed at high temperature and high speed. This is the purpose.

A quenched ribbon is a strip-shaped metal plate obtained by rapidly cooling and solidifying molten metal and forming it into a thickness of several hundred micrometers or less. It has attracted particular attention in recent years, not only because it exhibits extremely excellent properties in terms of metallurgy, etc., but also because it does not require a rolling process and therefore has low production costs. It is increasing.

This quenched ribbon is manufactured by injecting molten metal from a nozzle onto the outer circumferential surface of a cooling roll rotating at high speed and solidifying it. The quenched ribbon that is formed on the surface and sent out is extremely thin at 0.03 to 1.5 mm in thickness and extremely high in temperature at 1200°C.
The running speed is extremely high at 30 m/s, and the tip of the quenched ribbon that is sent out is often finely branched into finger-like shapes. It is extremely difficult to wind up.

When attempting to wind up this quenched ribbon with a conventional strip winding device, such as a wrapper roll type winding device in a hot thin steel plate rolling facility, the temperature of the quenched ribbon is high and the thickness is small. Therefore, the stiffness of the quenched ribbon is weak, and the shape of the tip is finely branched into finger-like shapes, making it impossible to reliably feed the tip of the quenched ribbon around the winding mandrel. It cannot be applied to the winding of strips, and when winding is attempted with a belt trapper type winding device in cold thin steel plate rolling equipment, the temperature of the quenched ribbon is high and the speed is high, so the tip of the quenched ribbon is The lack of a suitable material for the belt needed to guide the material around the winding mandrel makes it unsuitable for winding quenched ribbon.

Apart from the idea of using this conventional winding device, the tip of the quenched ribbon can be directly attracted to a winding mandrel using magnetism or air pressure, or the force of air or water jetted from a nozzle can be used. Depending on the situation, it is possible to wind the tip of the quenched ribbon by pressing it against a winding mandrel, but due to severe conditions such as the material of the quenched ribbon, temperature, speed, and shape of the tip, It has become clear from the results of many studies that this method cannot be applied.

As described above, it is extremely difficult to wind up the quenched ribbon, and there has been a strong desire for a method that can do this reliably and accurately.

The present invention was devised in response to the above-mentioned strong demand from the past, and takes advantage of the fact that the quenched ribbon is extremely thin and has a high temperature. The quenched ribbon is guided to a winding drum, and the quenched ribbon is wound onto the winding drum.

Embodiments of the method of the present invention will be described below with reference to the drawings.

1 to 5 show an example of the configuration of the most basic winding device 1 that implements the method of the present invention, and the winding device 1 for the quenched ribbon 20 used here can be Rotationally driven winding drum 2
and the sheet 3 wound on this winding drum 2.
, a sheet guide 4 for guiding the sheet 3 to the circumferential surface of the winding drum 2, a sheet stopper 5 for controlling the timing of winding the sheet 3 around the winding drum 2, and a quenched ribbon. 20 is conveyed in a direction perpendicular to the rotational axis of the winding drum 2, and the tip of the conveyed quenched ribbon 20 is placed between the sheet 3 that is being wound up and the winding drum 2 side at an entry position. It is configured by providing a transport mechanism 21 for transporting.

A conveying mechanism 21 moves the tip of the quenched ribbon 20 into a position between the sheet 3 being wound up and the winding drum 2 side, and winds the quenched ribbon 20 onto the winding drum 2 of the sheet 3. The quenched ribbon 20 is conveyed in the direction of the arrow 30 toward the start position, and the conveyance speed of the quenched ribbon 20 is naturally the same as the rotational linear speed of the winding drum 2.

In this way, the conveyance mechanism 21 conveys the quenched ribbon 20 along the direction of the arrow 30 perpendicular to the rotation axis of the winding drum 2 toward the position where the sheet 3 starts being wound onto the winding drum 2. Therefore, the leading end of the conveyed quenched ribbon 20 inevitably enters a position between the sheet 3 being wound up and the winding drum 2 side.

The sheet 3 is for guiding and achieving the winding of the tip of the quenched ribbon 20 onto the winding drum 2, and is made of a flexible material so that winding on the winding drum 2 can be achieved more reliably. It is desirable that

As the sheet 3, it is possible to use a paper sheet, a synthetic resin sheet, a metal foil sheet, etc. that meets the above conditions, but from the viewpoint of cost, strength, removal after use, etc., the tip of the quenched ribbon 20 is After completing the winding on the winding drum 2, the quenched ribbon 2
Kraft paper is ideal because it burns naturally due to the high heat of 0 and does not require any removal work after use.

That is, the sheet 3 can be guided by holding the tip of the quenched ribbon 20 until the tip of the quenched ribbon 20 is wound around the winding drum 2 once. Even at a slow winding speed of about 3 m/s, the time it takes for the tip of the winding drum 2 to wrap once around the winding drum 2 is
When the outside diameter of the cylinder 2a is 300 mm, it takes about 0.3 seconds, which is extremely short, so that even ordinary kraft paper can burn at the tip of the quenched ribbon 20 before it burns due to the heat of the quenched ribbon 20. One or more windings on the winding drum 2 can be guided and held.

This winding drum 2 has a center hole 2'b formed at the center of the outer surface of the side plate 2b in which the tip 6a of the drive shaft 6 is fitted, and a center hole 2' formed at the center of the outer surface of the other side plate 2c. Rotation center 7 at c
It is rotatably attached by fitting the tip of the

The drive shaft 6 is rotatably held by a fixed bearing 8, and its base end is mechanically connected via a coupling 9 to an output shaft of a prime mover 10 such as a motor.

Near the tip 6a of the drive shaft 6 is a disc 6b.
is fixed, and by engaging a pin 2d protruding from the outer surface of the side plate 2b with a notch formed at the peripheral end of the disc 6b, the motor 10 is fixed.
The rotational force from the winding drum 2 is transmitted to the winding drum 2.

On the other hand, the rotation center 7 is supported by a fixed bracket 11.

In the case of the illustrated configuration example, the conveying mechanism 21 is shown as a simple flat plate body having a smooth upper surface of the quenched ribbon 20, but as described above, the quenched ribbon 2
Needless to say, it has a function for guiding and conveying 0.

Immediately above the portion of this conveying mechanism 21 that is close to the winding drum 2, there is a quenched ribbon 20 being conveyed.
A tip detector 22 using a phototube or the like is attached to detect the tip of the tube.

The sheet guide 4 guides the sheet 3 so that it can be easily wound around the cylinder 2a of the winding drum 2. The sheet guide 4 guides the sheet 3 so that it can be easily wound around the cylinder 2a of the winding drum 2. It has opposing curved plate portions.

The sheet stopper 5 is for restraining the sheet 3 from moving by sandwiching it between the stopper plate 5a and the stopper pin 5b until the sheet 3 starts to be wound around the winding drum 2.

The stopper pin 5b is pushed out or retracted by an actuator 5c such as a cylinder or a solenoid.

Therefore, when the stopper pin 5b is pushed out, the seat 3 is sandwiched between the stopper pin 5b and the stopper plate 5a and cannot be moved.On the other hand, when the stopper pin 5b is retracted, the seat 3 is not subject to any restraining force from the stopper plate 5a and the stopper pin 5b, and is therefore in a movable state.

In the figure, reference numeral 12 denotes a sheet support shaft that supports the sheet 3 wound into a roll so that it can freely rotate.

This seat support shaft 12 and seat stopper 5
is preferably assembled integrally with the sheet guide 4, and can be removed from the vicinity of the winding drum 2 after the tip of the quenched ribbon 20 has been wound around the winding drum 2. It is better to keep it that way.

Winding device 1 configured by implementing the method of the present invention
has the structure shown above,
Next, the operation of this winding device 1 will be explained in order.

FIG. 2 shows the state before winding up the quenched ribbon 20. In this state, the winding drum 2 moves at the same peripheral surface linear velocity as the winding speed, that is, the conveyance speed of the quenched ribbon 20. It is rotationally driven in the direction of arrow 31.

The sheet 3 that has been introduced to a position where its leading end comes into contact with the cylinder 2a is guided by the sheet guide 4 and its leading end is positioned close to the circumferential surface of the winding drum 2, so that the winding drum 2 is rotated. The winding drum 2 is drawn to the outer peripheral surface of the cylinder 2a of the winding drum 2 due to the influence of the air current generated on the peripheral surface of the sheet, and then due to the frictional force between the sheet 3 and the cylinder 2a, the winding drum 2
However, until the quenched ribbon 20 comes close to the winding drum 2, the sheet 3 is held between the stopper pin 5b and the stopper plate 5a. It continues to be held in a state where it cannot be wound around the winding drum 2 inadvertently.

From this state, as shown in FIG.
When the tip of the quenched ribbon 20 conveyed by 1 comes close to the winding drum 2 and is detected by the tip detector 22, the actuator 5c is activated by the detection signal from the tip detector 22. operates and the stopper pin 5b is retracted, so
The seat 3 is in an unrestricted state, and the cylinder 2a described above is
Due to the frictional force between the two, the winding drum 2 begins to wind the winding drum 2.

That is, prior to winding the quenched ribbon 20 onto the winding drum 2, winding of the sheet 3 onto the winding drum 2 is accomplished.

After the sheet 3 begins to be wound around the winding drum 2, and after the sheet 3 has been wound around the winding drum 2 one or more times, as shown in FIG. The leading end portion of the quenched ribbon 20 guided and conveyed by the conveyance mechanism 21 enters the position between the take-up drum 2 side.

In this way, when the tip of the quenched ribbon 20 enters between the sheet 3 being wound up and the winding drum 2 side, the winding force of the sheet 3 trying to wind around the winding drum 2 is applied. Therefore, the tip portion of the quenched thin ribbon 20, which is weak, is wound around the surface of the winding drum 2 integrally with the sheet 3.

When the winding of the quenched ribbon 20 integrated with the sheet 3 on the winding drum 2 reaches one turn or more as shown in FIG. Since the sheet is wound onto the winding drum 2 by the winding force against the drum 2, the sheet 3 becomes unnecessary.

Therefore, the length of the sheet 3 required for one winding operation of the quenched ribbon 20 onto the winding drum 2 is at least the length required to wind it around the winding drum 2 twice. In reality, the rotation speed of the winding drum 2 is high, and the timing of the arrival of the tip of the quenched ribbon 20 on the winding drum 2 circumferential surface is taken into consideration. It is preferable to make the length approximately five times the circumferential length of the cylinder 2a.

Furthermore, after the state shown in FIG. 5, the diameter of the quenched ribbon 20 wound around the winding drum 2 increases gradually, so the sheet guide 4 provided near the winding drum 2 is removed from the winding drum 2. Move it to a remote location.

By the way, in the state shown in FIG. 4 where the quenched ribbon 20 starts to be wound around the winding drum 2, the quenched ribbon 2
If the waist at the tip of sheet 0 is relatively strong, sheet 3 will be
The tip of the quenched ribbon 20 allows the quenched ribbon 2
However, since the sheet guide 4 is located close to the winding drum 2, the sheet The tip of the quenched ribbon 20 that has extruded the quenched ribbon 20 hits the sheet guide 4, and is therefore forcibly guided along the circumferential surface of the cylinder 2a and deformed.
The winding of the tip portion of the quenched ribbon 20 onto the winding drum 2 can be achieved reliably and without any problem even if the above-mentioned situation occurs.

Further, the width of the sheet 3 is not particularly limited, but it is preferably the same as or slightly larger than the width of the quenched ribbon 20.

As described above, the winding device 1 that carries out the method of the present invention integrally carries out the quenching ribbon 20 between the sheet 3 and the winding drum 2 side, which is being wound up on the winding drum 2. Since the leading end of the quenched ribbon 20 is placed in the advancing position and the winding force of the sheet 3 on the winding drum 2 is used to wind up the quenched ribbon 20 on the winding drum 2, the shape of the leading end of the quenched ribbon 20 does not matter. Regardless of the situation, the quenched ribbon 20 can be reliably wound onto the winding drum 2.

Further, since the leading end portion of the quenched ribbon 20 of the sheet 3 can be guided and held on the circumferential surface of the winding drum 2 in an extremely short time, no problem will occur even if the quenched ribbon 20 is at a high temperature.

The force of the sheet 3 to press and hold the tip of the quenched ribbon 20 against the circumferential surface of the winding drum 2 is due to the winding force of the sheet 3 on the winding drum 2, so it acts in a planar manner. Therefore, even if the tip of the quenched ribbon 20 has an extremely branched shape, the tip of the quenched ribbon 20 can be smoothly wound onto the winding drum 2 without any problems. can be achieved.

Furthermore, the winding of the quenched ribbon 20 onto the circumferential surface of the winding drum 2 can be accomplished completely automatically without requiring any human intervention.

Furthermore, if kraft paper is used as the sheet 3, the sheet 3 used to wrap the quenched thin ribbon 20 around the winding drum 2 will burn and be lost, so the quenched thin ribbon formed by winding will be There is no need to remove the sheet 3 from the band 20 rolls at all.

In the configuration example shown in FIGS. 1 to 5 described above, the force that attracts the sheet 3 to the cylinder 2a due to the airflow generated around the rotating winding drum 2, and the force generated between the cylinder 2a and the sheet 3 The sheet 3 is wound around the winding drum 2 by the frictional force, but if the winding speed is slow, the above-mentioned attracting force due to the generated airflow is weak, so the sheet 3 is wound around the winding drum 2. There is a possibility that the winding around the wire may become uncertain.

Therefore, the configuration example described below, which can reliably wind the sheet 3 around the winding drum 2 regardless of the rotational speed of the winding drum 2, is practically effective.

Figure 6 shows one of the above configuration examples.
In this FIG. 6, the structure and operation of each part other than the sheet guide 4 are the same as the basic configuration example shown in FIGS. 1 to 5.

In the configuration example shown in FIG. 6, the wall portion of the sheet guide 4 facing the cylinder 2a has a winding drum 2
A plurality of ejection holes 4a are arranged and opened at required intervals for ejecting fluid such as air or water toward.

The fluid supplied from the supply port 4c to the chamber 4b provided in the sheet guide 4 is ejected from the ejection hole 4a and presses the sheet 3 against the circumferential surface of the winding drum 2, so that the sheet 3 and the winding drum 2 are This increases the frictional force between the sheets 3 and 2, thereby achieving a more reliable winding operation of the sheet 3 on the winding drum 2.

In addition, the ejection hole 4a is such that the fluid ejected from the ejection hole 4a is directed against the circumferential surface of the winding drum 2.
It is preferable that the spray be formed so as to be inclined so that it is ejected slightly in the direction of rotation of the winding drum 2.

This is to facilitate introduction of the sheet 3 between the sheet guide 4 and the winding drum 2.

FIG. 7 and FIG. 8 show still other configuration examples, and the one shown in FIGS. The purpose is to suction and hold the sheet 3 onto the circumferential surface of the cylinder 2a, thereby making it possible to wind the sheet 3 around the winding drum 2 more reliably and smoothly.

In FIGS. 7 and 8, the structure and operation of the parts other than the winding drum 2 and bracket 11 are as follows.
This is the same as the basic configuration example described above.

In the configuration example shown in FIGS. 7 and 8, the winding drum 2 is a cylinder 2a having a large number of air suction holes 2'a uniformly formed over the entire circumferential surface to the extent that its mechanical strength is not reduced. have.

A rotation center 7, which rotatably supports the winding drum 2, is mounted in a suction box 13 fixed immovably to constitute a vacuum device.

The vacuum device connects a suction fan 14 to a suction box 1 with a suction pipe 16 having an on-off valve 15 in the middle.
The vacuum device and the winding drum 2 are connected to each other by opening a hole 2''c in the side plate 2c of the winding drum 2, and connecting the vacuum device to the winding drum 2 of the suction box 13. This is achieved by bringing the tip end surface of the connecting tube 13a, which is integrally provided on the side facing the side plate 2c, into airtight and slidable contact with the peripheral edge of the outer surface of the side plate 2c.

Before winding the quenched ribbon 20, the suction fan 14 is in operation, but the on-off valve 15 is closed, so the winding drum 2 is moved to a position where its tip comes into contact with the cylinder 2a. No suction force is applied to the drawn out sheet 3.

From this state, the tip of the quenched ribbon 12 conveyed by the conveyance mechanism 21 is detected by the tip detector 22.
When detected, the detection signal from the tip detector 22 causes the on-off valve 15 to open, thereby communicating the air suction hole 2'a with the fan 14, and the winding drum 2 An attractive force will be applied to 3.

Furthermore, the detection signal from the tip detector 22 is
In addition to the on-off valve 15, it is also applied to the actuator 5c at the same time, so the actuator 5c also operates, the stopper pin 5b is retracted, and the sheet 3 becomes unrestrained, so that the suction force of the winding drum 2 on the sheet 3 is Therefore, the sheet 3 is attracted to the winding drum 2 and is wound on the winding drum 2 as it is.

In the configuration example shown in FIGS. 7 and 8, since the sheet 3 is adsorbed and held on the cylinder 2a by the vacuum action, there is almost no risk of slipping between the sheet 3 and the cylinder 2a. The winding operation of the sheet 3 around the winding drum 2 can be achieved more reliably.

Note that after the sheet 3 has been wrapped around the winding drum 2 for more than one turn, the vacuum action is no longer necessary.
By stopping the suction fan 14 or switching the on-off valve 15 to the closed state, the vacuum action of the winding drum 2 on the sheet 3 is stopped.

Further, in the above description, the operation mode in which the fan 14 is activated in advance has been described, but the operation of the fan 14 may be started by a detection signal from the tip detector 22, and in this case,
The on-off valve 15 becomes unnecessary.

FIG. 9 shows still another example of the configuration.
The structure is constructed by using both the configuration example shown in the figure and the configuration examples shown in FIGS. 7 and 8.

In the configuration example shown in FIG.
Due to the suction force caused by the vacuum action, the winding drum 2 is wound more reliably and strongly, and the reliability of the winding operation on the winding drum 2 can be further improved.

As is clear from the above description, according to the method of the present invention, the quenched ribbon that has just been formed is at a high temperature and is transported at high speed, and furthermore, the tip part is branched into finger-like shapes. It is possible to reliably and smoothly wind up the quenched ribbon even when the material is
In addition, the winding operation of the quenched ribbon 20 is a completely automatic operation that does not require any human intervention.Furthermore, the operation and control are simple, so it is easy to carry out, and has many excellent effects, such as industrial production. It is of high value.

[Brief explanation of drawings]

1 to 5 show an example of the configuration of the most basic winding device implementing the method of the present invention, FIG. 1 is a cross-sectional view around the winding drum, and FIG. 5 to 5 are simplified vertical cross-sectional views for explaining the winding operation of the quenched ribbon by the winding device,
Figure 2 shows the state before operation, Figure 3 shows the state at the start of operation, Figure 4 shows the state when the sheet starts to guide the winding around the tip of the quenched ribbon, and Figure 5 shows the winding of the quenched ribbon. Each figure shows a state in which the winding on the take-up drum is completed. FIG. 6 is a longitudinal cross-sectional view showing an example of a configuration for more reliably achieving the winding operation of the sheet around the winding drum. FIG. 7 is a longitudinal sectional view showing another configuration example for more reliably achieving the winding operation of the sheet around the winding drum. FIG. 8 is a simplified sectional view around the winding drum of the configuration example shown in FIG. 7. FIG. 9 is a simplified sectional view of an example in which the configuration examples of FIG. 6 and FIGS. 7 and 8 are used together. Explanation of symbols 1; Winding device, 2; Winding drum, 2a; Cylinder, 3; Sheet, 4; Sheet guide, 5; Sheet stopper, 5a; Stopper plate, 5b; Stopper pin, 10; Prime mover,
13; Suction box, 14; Suction fan, 15;
Opening/closing valve, 20; Quenched ribbon, 21; Conveying mechanism, 2
2; Tip detector.

Claims (1)

[Claims] 1. Guide the sheet to the circumferential surface of a winding drum that is rotationally driven in a certain direction, wind the sheet with the winding drum, and place a conveyor between the sheet being wound and the winding drum side. placing the leading end of the quenched ribbon in an entry position, and winding the leading end of the quenched ribbon around the winding drum by the winding force of the sheet being wound around the winding drum; A method for winding a quenched thin ribbon.