JPH05104136A - Device for coiling and re-coiling hoop - Google Patents

Abstract

PURPOSE:To provide the recoiling and coiling device that a top end supporting device of a coiling drum is simplified about the improvement of the device for recoiling and coiling the coil-like hoop. CONSTITUTION:In the recoiling and coiling device that coils 4 are inserted and attached to a pair of coiling drums 3a, 3b at symmetrical positions centering around the revolution center 2 of the revolution casing 1, a pair of supporting arms 8a, 8b having centers at the symmetrical positions of both sides on the vertical bisector of the segment linking centers of coiling drums are provided, and top end sides of these supporting arms support the top ends of the coiling drums 3a, 3b and have the structure being able to shift to the axial direction of the coiling drum so as to be freely fit and un-fit. Therefore, the top ends of the coiling drums can be fixedly supported with the simple supporting arms, and the device can be miniaturized and simplified and the equipment cost and the installation expense can be reduced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a device for rewinding a coiled steel strip and winding it.

[0002]

2. Description of the Related Art As a device for rewinding and winding a coiled strip steel, a carousel type reel having a plurality of winding cylinders is used in order to improve the yield in the rolling line and shorten the rolling waiting time. It has been developed and is becoming popular.

Since this carousel type reel has a structure in which the winding drum is supported in a cantilever manner, when the coil weight increases and the rewinding and winding speed is further increased as in recent years,
Deflection of the winding body part due to the coil weight occurs, and strip meandering on the line, plate breakage, product non-uniformity,
Further, resonance occurs due to the matching of the natural bending frequency of the winding drum and the rotation speed of the winding drum.

As a technique for preventing such bending and resonance of the winding drum, for example, there is a strip steel rewinding / winding device disclosed in Japanese Patent Laid-Open No. 59-149256.

[0005]

This rewinding / rewinding device is designed so that the revolving casing of the rewinding / rewinding device has a predetermined revolving motion in order to prevent the deflection of the winding cylinder and the resonance caused by an external force. A first tip support device that supports the tip of the winding drum during stoppage in the return and winding position or a rewinding and winding preparation position, and a second tip support device that supports the tip of the winding drum during revolution. A tip support device is provided, and a switching device for switching the first and second tip support devices at appropriate times is provided.

However, this rewinding / rewinding device is
Since two sets of tip supporting devices and a switching device for the tip supporting devices are required, the equipment becomes complicated and large, and the equipment cost and the installation cost are high.

In view of the above problems, the present invention provides a strip rewinding / winding device intended to simplify the tip supporting device and reduce the equipment cost.

[0008]

SUMMARY OF THE INVENTION The present invention provides a strip steel rewinding / rewinding device having a pair of winding drums for inserting coils in symmetrical positions about the center of revolution of a revolving casing. In the device, a vertical line 2 connecting the centers of the winding drums
A pair of support arms having respective centers are rotatably provided at symmetrical positions on both sides of the bisector, and the tip ends of the pair of support arms support the tip ends of the winding cylinders so that they can be inserted and removed. A strip steel rewinding / winding device having a structure capable of shifting in the axial direction of the winding cylinder.

[0009]

The present invention is constructed as described above, that is, the pair of support arms are pivoted so as to have their centers at symmetrical positions on the bisector orthogonal to the line connecting the winding cylinders for inserting the coils. Freely installed, and insert the tip side of the arm into the tip of the winding drum.
The book support arm forms a triangle to support the tip of the winding drum.

By installing a pair of support arms in this way, for example, a predetermined strip rewinding / winding position, a predetermined strip rewinding / winding preparation position, and a revolving revolution are performed while the revolution casing is stopped. The tip of the winding drum rotating inside can be firmly supported.

Further, when the winding cylinder to be supported is switched, the support arm is rotatable and has a structure capable of shifting in the axial direction of the winding cylinder so that it can be inserted into and removed from the tip of the winding cylinder. At a predetermined position of the casing, the supporting arm is appropriately inserted into and removed from the winding cylinder to switch the supporting winding cylinder.

[0012]

Embodiments of the present invention will now be described in detail with reference to the drawings.

FIG. 1 is a front view showing a main part of the revolution casing, FIG. 2 is a side sectional view showing a main part of the revolution casing shown in FIG. 1, and FIG. 3 is a device arrangement of the entire strip rewinding and winding device. FIG.

Referring to FIG. 3, the rewinding / winding device is a pair of coils 4 inserted in symmetrical positions with respect to a revolution center 2 of a revolution casing 1 rotated by a revolution motor 1a via a speed reducer 1b. Winding drums 3a and 3b are provided.

The winding drums 3a and 3b are driven by two winding drum driving motors 5a and 5b, respectively, via a drive reduction gear 6 and a reduction gear 7 in the revolution casing 1.

1 and 2, the supporting arm 8 of the winding drum
a and 8b respectively have centers at symmetrical positions on both sides on a vertical bisector of a line segment connecting the centers of the pair of winding cylinders 3a and 3b, and are supported by bearings 1c attached to the revolution casing 1. It is attached to the support rods 9a and 9b, and can be rotated by swing hydraulic cylinders 10a and 10b provided on the support rods 9a and 9b.

The tips 8a-1, 8 of the support arms 8a, 8b
The b-1 side has tips 3a-1 and 3b-1 of the winding drums 3a and 3b.
It is formed in a ring shape so as to support the winding cylinder and to be removable from the winding cylinder, and can be shifted in the axial direction of the winding cylinders 3a, 3b by the shift hydraulic cylinders 11a, 11b attached to the support rods 9a, 9b. It has a simple structure. In the figure, 12 is a deflector roll, and 4a is a strip steel to be rewound or wound.

Thus, the support arms 8a and 8b are rotatably supported by the support rods 9a and 9b on the base end side, and the winding drum 3a or 3 on the tip ends 8a-1 and 8b-1 side.
The two support arms 8a and 8b are fitted into the tips 3a-1 and 3b-1 of b to form a triangle, and firmly support the tip of the winding drum.

Next, an operation example when the strip steel is rewound by the apparatus of the present invention will be described.

In FIG. 4, the winding cylinder 3a is in a predetermined strip unwinding position, and the inserted coil 4-1 is attached to the deflector roll 12
The winding drum 3b is in the unwinding preparation position, in which case the coil 4-1 still has a considerable weight in the initial stage of the unwinding, so that the support arms 8a, 8a
The b is fitted into the winding drum 3a to support the winding drum 3a.

Next, referring to FIG. 5, the coil 4 of the winding drum 3a
-1 When the rewinding approaches the final stage, the coil car 13 prepares the next coil 4-2 to be attached to the winding drum 3b at the rewinding preparation position.

Next, referring to FIG. 6, when the next coil 4-2 is completely inserted into the winding drum 3b and the coil weight of the winding drum 3a becomes sufficiently small, the support which was supporting the winding drum 3a was obtained. Arms 8a and 8b are once removed, and this is taken up by the winding drum 3b.
To support the winding cylinder 3b and the coil 4-2.

Then, in FIG. 7, when the rewinding of the coil 4-1 is completed, the next coil 4-on the winding cylinder 3b continues.
Rewind 2 starts.

Then, in FIG. 8, when the rewinding of the coil 4-2 is started by the winding drum 3b, the revolution casing 1 starts to rotate while continuing the rewinding operation, during which the support arms 8a and 8b are kept in the winding drum. While supporting 3b, the winding cylinder 3b moves together to reach a predetermined strip rewinding position. At the same time, the winding drum 3a moves to the rewinding preparation position and stands by.

While the above operation is repeated, the coil rewinding work is sequentially performed. During this, a pair of support arms 8a,
By installing 8b, while the revolution casing 1 is stopped, for example, a predetermined strip rewinding / winding position, a predetermined strip rewinding / winding preparation position, and a winding drum 3 that rotates during revolution.
The tips of a and 3b can be firmly supported.

[0026]

As described above, according to the present invention, 1
By installing a pair of simple support arms, it is possible to firmly support the tip of the winding cylinder that rotates while the revolution casing is stopped or revolving, and a complicated switching device between winding cylinders is also possible. It is not necessary, and the equipment cost and installation cost can be reduced as well as the size and simplification of the device.

[Brief description of drawings]

FIG. 1 is a front view showing a main part of a revolution casing according to an embodiment of the present invention.

FIG. 2 is a side sectional view showing a main part of the revolution casing shown in FIG.

FIG. 3 is a schematic plan view showing a device arrangement of the entire strip rewinding and winding device.

FIG. 4 is a schematic side view showing an operation example of the device of the present invention, showing a state in which the coil is unwound from the winding cylinder at a predetermined strip steel unwinding position.

FIG. 5 is a schematic side view showing a state in which the next coil is ready to be attached to the winding drum in the rewinding preparation position.

FIG. 6 is a schematic side view showing a state in which the support arm is replaced with the winding drum in the rewinding preparation position.

FIG. 7 is a schematic side view showing a state at the time of starting the rewinding of the coil from the next winding cylinder.

FIG. 8 is a schematic side view showing a state in which the revolution casing is rotated to move the winding drum to a predetermined rewinding position.

[Explanation of symbols]

 1 Revolution casing 2 Revolution center 3a, 3b Winding drum 4 Coil 4a Band steel 5a, 5b Winding drum driving motor 8a, 8b Support arm 9a, 9b Support rod 10a, 10b Swing hydraulic cylinder 11a, 11b Shift hydraulic cylinder 12 Deflector Roll 13 coil car

Claims (1)

[Claims] 1. A strip steel rewinding / winding device provided with a pair of winding drums for inserting and inserting coils in symmetrical positions about the center of revolution of a revolution casing provided rotatably. A pair of support arms having respective centers are rotatably provided at symmetrical positions on both sides of a vertical bisector of the line segment connecting the two, and the tip ends of the pair of support arms support the tip of the winding cylinder. At the same time, a strip steel rewinding / winding device having a structure capable of shifting in the axial direction of the winding drum so that it can be fitted and removed.