JPH0771694B2 - Winding / unwinding machine for strip steel - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a strip steel winding / unwinding machine, and more particularly to a carousel type in which a plurality of winding drums are rotatably provided in a rotatable housing. The present invention relates to a strip steel winding / unwinding machine.

[Conventional technology]

A strip steel winding / unwinding machine in which a plurality of winding cylinders are rotatably provided in a rotatable housing is generally called a carousel-type winding / unwinding machine. It is common to support the winding cylinder in a cantilever manner. On the other hand, the one disclosed in JP-B-51-25813 is provided with a tip supporting device for supporting the tip of the winding drum when the housing is in the winding / unwinding position and the winding / unwinding preparation position, It is configured to prevent the flexure of the winding cylinder and the resonance caused by an external force while stationary.

On the other hand, as a measure for preventing the flexure and resonance of the winding cylinder during the revolution while winding the strip steel, the winding / unwinding machine described in JP-A-59-149256 and JP-A-64-5625 has been proposed. is there. In these conventional devices, the housing is stationary at the winding / unwinding position and the winding / unwinding preparation position, the fixed type tip supporting device for supporting the tip of the winding cylinder, and the revolving while winding the strip steel. The winding cylinder has a movable tip supporting device for supporting the tip, and these two tip supporting devices support the tip of the winding cylinder when the housing is stationary or revolving.

Further, Japanese Utility Model Laid-Open No. 53-150833 describes that a housing provided with a plurality of winding drums rotatably supports the ends of the rotating shaft on the winding drum side and the non-winding drum side.

[Problems to be Solved by the Invention]

In the device disclosed in Japanese Utility Model Laid-Open No. 53-150833, the tip of the winding drum is not supported, so there is a problem that the bending of the winding drum becomes large when a large force is applied to the winding drum.

The device disclosed in Japanese Patent Publication No. 51-25813 supports the tip of the winding cylinder while the housing is stationary at the winding / unwinding position and the winding / unwinding preparation position. Since the tip of the winding cylinder that is revolving while being wound cannot be supported, there is a problem that the bending of the winding cylinder becomes large when a large external force acts on the winding cylinder.

In recent years, strip steel winding / unwinding machines have been used under severe conditions in which a large width of strip steel and high-speed rolling of a thick plate gauge increase the weight of the winding coil and high tension rolling causes a large external force to act on the winding cylinder. It In this case, a particularly large deflection occurs in the winding cylinder that revolves while winding the strip steel.

The winding and unwinding machines described in JP-A-59-149256 and JP-A-64-5625 are provided with two types of tip support devices, a fixed type and a movable type, to wind even when the housing is revolving. Since the tip of the case is supported, it is possible to prevent the bending of the winding case during revolution. However, in the device disclosed in Japanese Patent Laid-Open No. 59-149256, in addition to the two types of tip support devices of fixed type and movable type, a switching device for switching is additionally provided, which complicates the structure and causes the operation. There is a problem that the operation becomes complicated. In addition, since the movable tip support device and switching device are installed near the front of the tip of the winding cylinder, the belt wrapper necessary for winding the strip steel around the winding cylinder at the winding preparation position is out of the line during maintenance. There is a drawback that there is no space to move to.

Further, in the device disclosed in JP-A-64-5625, the structure and operation of the orbiting movable tip support device becomes more complicated and large, and it is necessary to switch between the tip support devices at the winding position. There is a problem of becoming.

As a means for reducing the deflection of the winding drum, it is conceivable to increase the outer diameter of the winding drum to increase the rigidity, but this means cannot be adopted because it is necessary to manufacture the inner diameter of the product coil to a predetermined size.

On the other hand, the conventional device has a structure in which a housing that rotatably holds a plurality of winding drums has a lower portion supported by a plurality of support rollers, and a rotating shaft end on a drive side is rotatably supported. When a large external force acts on the case, there is a problem that the housing tends to tilt in the direction of the external force.

An object of the present invention is to provide a strip steel winding / unwinding machine capable of preventing the bending of the winding cylinder during revolution, simplifying the structure and operation of the device, and reducing the size of the device.

[Means for Solving the Problems]

In order to achieve the above object, the present invention provides a housing,
A drive unit that rotatably supports one end of a rotary shaft provided in the housing and that rotates the housing by rotating the rotary shaft, and a rotatably support the other end of the rotary shaft provided in the housing. Bearings, a plurality of winding drums, one end of which is attached to the housing and which is rotatably driven by a driving force from the driving machine to wind the strip steel, and the plurality of winding cylinders provided near the bearings on the rotating shaft. The other end of the winding drum is rotatably supported by a plurality of support members, and the support member rotates around an axis orthogonal to the rotation axis to attach and detach the mechanism attached to the tip of the support member. And a tip supporting device that detachably supports the other end of the winding cylinder.

[Action]

According to the present invention, one end of the winding drum is attached to the housing and is driven to rotate by the driving machine to wind the strip steel, and the other end is rotatably supported by the tip supporting device, so that the housing is revolved. Even if a large external force is applied to the winding cylinder, the tip of the winding cylinder does not bend, and the structure and operation of the tip support device is simple, and the size can be reduced.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, the carousel-type winding / unwinding machine of this embodiment has a housing 2 rotatably supported on a plurality of supporting rollers 1, and the housing 2 is rotated by a separately provided driving device. The housing 2 has a first and a second winding drum 3,4.
Are rotatably mounted on a diagonal line. A rotating shaft 5 is provided on the non-winding drum side of the housing 2, and an end portion of the rotating shaft 5 is rotatably supported by a driving machine 6 to rotatably support the non-winding drum side of the housing 2. Further, the driving machine 6 is connected to the motor 7, and the first and second winding drums 3 and 4 are driven via the motor 7, the driving machine 6, the rotary shaft 5 and the distributor incorporated in the housing 2. .

A rotary shaft 8 is provided in the center of the winding drum side of the housing 2, and the tip of the rotary shaft 8 is rotatably supported by a bearing 9. That is, the lower part of the housing 2 is supported by the support roll 1, and both sides of the non-winding cylinder side and the winding cylinder side are rotatably supported by the driving machine 6 and the bearing 9 via the rotary shafts 5 and 8, respectively.

Further, in the vicinity of the tip of the rotary shaft 8, the first and second winding drums 3,
Tip support device 10, which supports the tips of 4 rotatably,
11 are provided.

As shown in FIGS. 2 and 3, the tip end supporting devices 10 and 11 each include a radial support member 12 fixed to the rotary shaft 8.
And a door member 13 rotatably supported by the support member 12, and the door member 13 is opened and closed in the direction of FIG. 2A about the shaft 15 by the cylinder 14 mounted on the support member 12. Door member 13
2 has a built-in sleeve 17 for supporting a roller 16 provided at the tip of the winding drum 3 or 4, and the sleeve 17 is moved from the position shown in FIG.
It is driven back and forth to the position shown in the figure, and is attached to and detached from the roller 16 when the door member 13 is opened and closed.

The basic operation of the winding / unwinding machine configured as described above is as follows.

In FIG. 5, the strip steel S rolled in the rolling equipment 20 and sent from the deflector roller 21 in the (a) direction starts to be rolled in the (b) direction by the first winding cylinder 3, and is shown in FIG. As shown, it is wound around a coil C having a predetermined coil diameter. When the coil C reaches a predetermined coil diameter, the housing 2 is rotated as shown in FIG. 7, the coil C is revolved while winding the strip steel S, and the second winding drum 4 is rotated as shown in FIG. The rotation of the housing 2 is stopped at the position where was waiting. Then, at this position, the second winding cylinder 4 continuously winds the strip steel S until the final coil diameter is reached. Further, the strip steel S sent next at this position starts to be wound on the second winding cylinder 4 and returns to the state of FIG.
The coil C, which has been wound up by the first winding drum 3, is processed by the coil payout device provided separately, and is taken out from the first winding drum 3. As described above, the strip steel S can be continuously wound without stopping the rolling equipment 20 or the strip steel adjusting equipment provided before the deflector roller 21.

In the winding / unwinding machine of this embodiment, the fifth
In the figure, tip supporting devices 10 and 11 respectively support the tips of the first and second winding drums 3 and 4 that are winding the steel strip S.
In FIG. 6, the door member 13 of the tip end supporting device 11 is opened when the coil of the second winding drum 4 is discharged, and the tip end of the winding drum 4 is opened. That is, the cylinder is operated to retract the sleeve 17 to the position shown in FIG. 4, and the engagement between the roller 16 and the sleeve 17 is released. Next, the cylinder 14 is operated to operate the door member.
Rotate 13 about shaft 15 by 90 °. As a result, the door member 13 is opened, and the product coil C can be efficiently handled.

In FIG. 7, the tips of the first and second winding cylinders 3 and 4 are supported by the tip supporting devices 10 and 11 while the housing 2 is being rotated while the strip steel S is being wound. In FIG. 8, the first winding drum 3
The steel strip S with its tip supported by the tip support device 10.
Continue winding.

Further, in FIGS. 5 to 8, the housing 2 is in a state where the rotary shafts 5 and 8 on both sides thereof are supported by the driving machine 6 and the bearing 9, respectively, and particularly in FIG. Both sides are supported.

FIG. 9 shows a vector of the load acting on the winding drum 2 while the housing 2 shown in FIG. 7 is rotating. At the winding start position of the strip steel S at θ = 0 °, the resultant force R1 due to the tension F and the coil weight W1 and at the midway position of 0 <θ <180 ° the resultant force R2 due to the tension F and the coil weight W2 becomes At the winding position of = 180 °, the resultant force R3 due to the tension F and the coil weight W3 acts on the first winding drum 3, and the load acting on the winding drum 3 increases from R1 to R3 due to the change of the rotation angle θ.

FIG. 10 shows the load R acting during winding of the strip steel S on the winding drum 3 when the outer diameter of the first winding drum 3 is 508 mm, the deflection δ at the tip of the winding drum, and the coil winding diameter. The relationship between D and the rotation angle θ of the housing 2 is shown. The coil outer diameter D increases with the change in the housing rotation angle θ, and the load R acting on the winding cylinder
Also increases. Deflection δ of the winding cylinder is δ without tip support.
At A, the state with tip support is shown at δB. δA increases with the change in θ, but remains δB at zero in the state where the tip is supported.

11 and 12 show the deflection of the first winding drum 3 during the winding of the strip S and the influence of the deflection on the length of the strip S between the deflector roller 21 and the winding drum 3. Since the winding cylinder 3 shown by the solid line has the tip support and the bending of the winding cylinder is zero, the lengths L1 and L2 of both sides of the steel strip S are L = L2,
No difference in elongation of the strip steel S in the strip width direction occurs. The winding cylinder 3 shown by the chain double-dashed line is in a state in which the tip is not supported, and the deflection δ of the first winding cylinder 3 occurs. Difference in elongation occurs. At that time, the stress distribution in the strip width direction of the strip steel S is the sum of the unit tension σu due to the tension F and the stress Δσ due to the difference in elongation between the strip lengths L1 and L2 in FIG. 11, and the strip length L1 Stress on the side σ1 (= σu +
Δσ) and the stress σ2 (= σu) on the length L2 side, so that the tensile stress in the strip width direction of the steel strip S becomes non-uniform. When the stress σ1 becomes larger than the yield point σy, the strip steel S is plastically deformed into a unilaterally stretched state, causing defective shape and plate breakage.

FIG. 13 shows the sectional shape of the coil C in which the steel strip S is wound around the winding drum 3. The solid line shows the coil wound with the tip supported, and the end surface of the coil C is wound neatly and flushly. The chain double-dashed line shows the coil wound without supporting the tip,
Deflection of the coil causes the coil end surface to become uneven.

Further, in this embodiment, the rotary shafts 5, 8 are provided on both sides of the housing 2.
Are provided, and the tips of the rotary shafts 5 and 8 are supported by the drive unit 6 and the bearing 9, respectively. Particularly, the rotation of the housing 2 in FIG. 7 is performed with both sides of the housing being supported.
Therefore, when the housing 2 rotates while winding the strip steel S on the winding drum 3, even if a large external force acts on the winding drum 3, the housing 2 is prevented from tilting in the direction of the external force. The inclination of the housing causes the strip steel to stretch and the coil end surface to be uneven, like the above-described bending of the tip of the winding cylinder. Therefore, by preventing the housing from tilting, it is possible to more effectively prevent one-sided elongation of the strip steel and unevenness of the coil end surface. Moreover, since the inclination of the housing 2 is prevented,
Vibration of the housing and the steel strip during rolling can be prevented.

As described above, according to this embodiment, during winding of the strip steel S, the bending of the tips of the winding drums 3 and 4 is prevented, and both sides of the housing 2 are supported to prevent the inclination in the external force direction. , Winding drum
Since it is possible to prevent the one-sided shape defect of the steel strip S and the plate breakage due to the deflection of 3, 4 and the inclination of the housing 2 and the unevenness of the coil end surface, it is possible to efficiently manufacture high quality products. . Further, since the inclination of the housing 2 is prevented, the vibration of the housing and the steel strip during rolling can be prevented, and the stable winding operation of the steel strip becomes possible.

Further, since the tip end supporting devices 10 and 11 of the winding drums 3 and 4 are provided in the rotating housing 2, the structure and the driving operation are simple. Furthermore, since the equipment can be downsized, it is possible to provide economical equipment with a small installation area.

Further, since it is not necessary to increase the outer diameter of the winding drum with respect to the external force acting on the winding drums 3 and 4, economical equipment can be provided from this point as well.

Furthermore, since the tip end supporting devices 10 and 11 of the winding drums 3 and 4 can be opened and closed, there is an effect that the product coil can be efficiently handled.

〔The invention's effect〕

According to the present invention, since it is possible to prevent the bending of the winding cylinder, it is possible to prevent defective extension of the strip steel and breakage of the plate, and also to prevent unevenness of the coil end surface, which is effective in efficiently manufacturing high-quality products. At the same time, since the tip end supporting device of the winding drum is provided on the protrusion of the housing, the structure and operation can be simplified, the device can be downsized, and economical equipment with a small installation area can be provided.

[Brief description of drawings]

FIG. 1 is a side view showing the whole of a strip steel winding / unwinding machine according to an embodiment of the present invention, and FIG. 2 is a II-II of FIG.
3 is a sectional view taken along line III-III in FIG. 1, FIG. 4 is a partially enlarged view of FIG. 3, and FIGS. It is a figure which shows operation | movement of a machine, FIG. 9 is a vector diagram of the load which acts on a winding drum, and FIG. 10 shows the relationship between a housing rotation angle, the load which acts on a winding drum, deflection, and a winding coil outer diameter. FIG. 11 and FIG. 12 are views showing the deflection of the winding cylinder, the length of the strip steel in the width direction and the stress distribution, and FIG. 13 is an external view of the winding coil. . Explanation of code 2 …… Housing 3,4 …… Cylinder 5,8 …… Rotary shaft 10,11 …… Tip support device 13 …… Door member

Claims (1)

[Claims] 1. A housing, a drive machine for rotatably instructing one end of a rotary shaft provided in the housing and rotating the rotary shaft to rotate the housing, and a rotary shaft provided in the housing. A bearing that rotatably supports the other end, a plurality of winding drums that are attached to the housing at one end and that are driven to rotate by the driving force from the driving machine to wind the strip steel, and the rotation near the bearing. The support member is provided on a shaft and rotatably supports the other ends of the plurality of winding drums by a plurality of support members, respectively, and the support member rotates by rotating the support member about an axis orthogonal to the rotation axis. And a tip supporting device for detachably supporting the other end of the winding drum by using a detaching mechanism attached to the tip of the strip winding and unwinding machine.