JPS6250211B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a leader device for preparing a coil for unwinding a strip wound into a coil.

Conventionally, when unwinding a strip wound into a coil, there has been a demand for improving productivity by shortening the unwinding time of an unwinder and reducing the waiting time for rolling operations. Conventionally, for plastic wound coils, annealed coils, aluminum coils, etc., which do not require the use of a steel band but remain coiled and the strip tip does not fluctuate, two winding machines are used to shorten the unwinding time of the unwinding machine. Various arrangements and devices have been put into practical use, such as using an extraction machine, and each has a proven track record.
However, the above-mentioned devices have the disadvantage that they are very expensive and have a complicated structure, resulting in poor workability.

In addition, the opening time of a commonly used device in which an opener is mounted on a single winding machine usually takes about 40 to 60 seconds to start rolling, depending on how the worker uses it. has become a problem in efforts to improve productivity.

SUMMARY OF THE INVENTION In view of the above-mentioned drawbacks, an object of the present invention is to provide a coil unwinding preparation leader device which can significantly shorten the unwinding time until the start of rolling and has excellent workability.

The above object of the present invention is to open the tip of the coil before inserting it into the unwinding machine drum and guide it directly onto the reflector roller, and to insert the next coil into the unwinding machine as soon as the previous coil is finished rolling. The following configuration that can be achieved here is achieved by the following equipment.

That is, the structure of the present invention will be explained by indicating the reference numerals ( ) of each device used in the embodiment shown in FIGS. 1 to 3. The gist of the coil unwinding preparation leader device of the present invention will be explained below. A truck 26 that reciprocates in synchronization with the coil car 20 above the coil car 20 on which the coil 18 is placed, a frame 36 suspended from the truck 26 so as to be able to rise and fall, and a coil car supported on the lower end of the frame 36. It is operated by a snubber roller 34 that comes into contact with the upper outer periphery of the coil 18 placed on the carrier 20, a leader frame 42 suspended from the trolley 26 so as to be able to rise and fall, and a first cylinder device 49 provided on the leader frame 42. The coil 1 is connected to the leader frame 42.
8, and a second cylinder device 60 provided on the operating frame 54, which is operated by a second cylinder device 60 and rotatably supported with respect to the operating frame 60. a rotating frame 58; an opener frame 62 supported via a guide rod 66 that is operated by a third cylinder device 64 provided on the rotating frame 58 and expands and contracts along the radial direction of the coil 18; and the opener frame 62. The opener guide 76 is rotatably operated from the coil side 18 to the deflector roller side 14 of the rolling mill by a fourth cylinder device 74 provided at It is in.

An embodiment of the present invention will be described below with reference to the drawings.

FIGS. 1 to 3 are diagrams showing an embodiment of a coil unwinding preparation leader device according to the present invention.

The leader device for coil unwinding preparation is at the coil tip 1.
2 is placed on top of a deflector roller 14 installed on the entrance side of a rolling mill (not shown), and the strip is fed out by an unwinder drum 16 to improve the efficiency of the rolling operation.

The coil 18 is moved on a coil car 20. The coil car 20 is configured to run on a coil car rail 22 by rotating coil car wheels 24 attached to the coil car by a moving mechanism (not shown).

On the other hand, reference numeral 26 indicates a leader truck, and this leader truck 26 is provided with leader wheels 30 that run on beam rails 28. The beam rail 28 is supported and fixed by a pillar 32. The leader truck 26 also has an elevating rod 38 and a snubber that move up and down a frame 36 on which a bearing 35 of a snubber roller 34 is installed, as shown in detail in FIG. An elevating cylinder 40 is provided for moving the roller 34 up and down guided by an elevating rod 38. Furthermore, the leader truck 26 is provided with an elevating rod 44 that guides a leader frame 42 that supports the entire reader device portion, and an elevating cylinder 46 that moves the leader frame 42 up and down while being guided by the elevating rod 44. . The leader trolley 26 having such a configuration is mounted on the beam rail 2 by a traveling cylinder 48 fixed to one end of the beam rail 28.
It is now possible to drive along 8.

FIG. 3 is a view taken in the direction of the - arrow in FIG. A frame 54 is attached so as to be movable along the axial direction of the coil 18 by operating an in/out cylinder 49 . When the in/out cylinder 49 is actuated, the actuating frame 54 moves along the guide rod 50 to a position as shown by the two-dot chain line in FIG.

In FIGS. 1 and 3, reference numeral 56 indicates a fulcrum shaft, and this fulcrum shaft 56 is connected to the operating frame 5.
4, and serves as the fulcrum of the rotating frame 58. Further, one end of the fulcrum shaft 56 is connected to a rotating cylinder 60, which is a second cylinder device supported by the operating frame 54, and is rotatable by this rotating cylinder 60.
The rotating frame 58 holds an opening/closing cylinder 64, which is a third cylinder device for expanding and contracting the opener frame 62, and a guide rod 66 for guiding the expansion and contraction. Note that the fulcrum shaft 56 has the center position of the coil 18 at the best position that can accommodate changes in the coil diameter.

Reference numeral 68 indicates a guide roller, and this guide roller 68 is rotatably attached to the shaft 70 as a fulcrum. The shaft 70 is rotated by a rotary cylinder 74, which is a fourth cylinder device, via a link 72, and the opener guide 76 can be rotated by the rotation of the shaft 70. The guide roller 68, shaft 70, link 72, rotating cylinder 74, and opener guide 76 are attached to the opener frame 62.

Next, the operation of this embodiment will be explained. The coil 18 is connected to the fourth coil by the coil car 20 shown in FIG.
When the coil is transported with the coil tip 12 facing downward as shown in Figure A, the snubber roller 34 shown in Figure 1
The lifting rod 3 is operated by the lifting cylinder 40.
Touch the coil 18 as shown in step 8. Further, the tips of the guide roller 68 and the opener guide 76 are pressed against the coil 18 by the opening/closing cylinder 64 as shown in FIG.

Next, as shown in FIGS. 4C and 4D, the guide roller 68 and opener guide 76 are rotated by the rotary cylinder 60 about the fulcrum shaft 56 to the best position while being pressed against the coil 18. After this rotation is completed, the lifting rod 4 is moved by the lifting cylinder 46.
4, the direction of the opener guide 76 is changed by the rotary cylinder 74 while raising the fulcrum shaft 56, and the tip 12 of the coil moves toward the deflector roller 1.
Position it so that it will sit on 4.

After the series of operations shown in FIGS. 4A to 4D are completed, the coil car 20 and the travel cylinder 48 move in synchronization to move toward the winding machine (not shown on the left side in the figure). In this case, it goes without saying that the winder has moved outside the line. When the coil car 20 and leader cart 26 stop moving at the center of the unwinder drum 16 and the operation is completed, the winder moves into the line and the unwinder drum 16 is inserted into the center of the coil 18. . After the specified operation is completed, the guide roller 68 and opener guide 76 are moved out of the line by the guide rod 50 by the operation of the in/out cylinder 49, and rolling is started.

According to this embodiment, even when the previous coil is rolling the coil 18 on the coil car 20, the guide rod 66
The opener guide 76 attached to the guide roller 68 at the tip of the coil is pressed against the tip 12 of the coil, and the guide rod 66 is rotated. At the same time, the opener guide 76 is also rotated to lift the tip 12 of the coil and push it onto the deflector roller 14. Because it can be made ready to ride at any time,
Unwinding preparations can be made immediately after the previous coil has been rolled, and the unwinding time of the unwinding machine can be greatly shortened. Furthermore, since the above operation is simple, it has the effect of improving work efficiency. Further, since the structure is relatively simple and no expensive parts are used, the above-mentioned lead-out time can be reduced at low cost.

As is clear from the above description, according to the present invention, while the previous coil is being rolled, the tip of the next coil can be opened so that it can be placed on the deflector roller at any time. It is possible to provide a coil unwinding preparation leader device that is significantly shortened and has excellent workability.

[Brief explanation of the drawing]

FIG. 1 is a front view showing an embodiment of a coil unwinding preparation leader device according to the present invention, FIG. 2 is a view taken along the - arrow in FIG. 1, and FIG. FIG. 4 is an operational explanatory diagram showing the order of input in this embodiment. 12... Coil tip, 14... Deflector roller, 16... Unwinder drum, 18... Coil,
20...Coil car, 26...Leader trolley, 34
... Snubber roller, 38, 44 ... Lifting rod, 42 ... Leader frame, 66 ... Guide rod, 76 ... Opener guide.

Claims (1)

[Claims] 1. A truck that reciprocates above the coil car on which the coil is placed in synchronization with the coil car, a frame that is suspended from the truck so as to be able to rise and fall, and an upper part of the outer periphery of the coil that is supported by the lower end of the frame and placed on the coil car. a snubber roller that comes into contact with the leader frame, a leader frame that is suspended from the truck so as to be able to rise and fall, and a first cylinder device that is provided on the leader frame, and is operated with respect to the leader frame in a direction parallel to the axis of the coil. a movably supported actuation frame; and a second actuation frame provided on the actuation frame.
A rotary frame operated by a third cylinder device and rotatably supported with respect to the operating frame, and a guide rod operated by a third cylinder device provided on the rotary frame and expanded and contracted along the radial direction of the coil. an opener frame supported by the opener frame; and an opener guide having a guide roller that can be rotated from the coil side to the deflector roller side of the rolling mill by a fourth cylinder device provided on the opener frame and can come into contact with the outer periphery of the coil. A leader device for coil unwinding preparation, characterized by comprising: