JPH0110095Y2 - - Google Patents

Description

[Detailed explanation of the idea]

The present invention relates to an improvement of a device for feeding steel plate coils into a rolling mill. During the cold rolling of steel sheets, conventional coil ramps used to keep pickled and annealed steel sheet coils (hereinafter referred to as coils) waiting at the rear of the rolling mill have sloped surfaces that become lower as they approach the rolling mill. When the coil is carried onto the inclined ramp by an external crane, the coil advances while rolling on the inclined surface, and stoppers that can be projected upward by a hydraulic cylinder are provided at several locations on the inclined surface. is,
The rolling of the coil is temporarily stopped and the system waits. Then, when the payoff reel is empty, when the stopper is moved downward by the operator's operation, the leading coil rolls again and advances to the top of the table lifter, and is then lifted up to the payoff reel. . According to this structure, the layers near the surface of the coils rub against each other due to rolling and collisions with stoppers, or collisions between coils due to operator error.
Scratches on the surface of the plate sometimes extend to several turns from the outer periphery, contributing to a decrease in yield. In addition, some tandem rolling mills with high coil feeding speeds use roller conveyor systems.
A large amount of space and expense is required to rotate the roller conveyor. The present invention eliminates the above-mentioned drawbacks, and provides a device that prevents damage caused by rolling of the coil by preventing the rolling of the coil, maintains high quality of the coil, and supplies the coil safely. With the goal. In order to achieve the above object, the structure of the present invention is as follows. That is, there is a table lifter 10 that holds the steel plate coil A below near the entrance side of the rolling mill 1 so that its axis is horizontal, and a mandrill 21 is inserted into the center hole from the side of the steel plate coil above the table lifter 10. , and a payoff reel 20 that rotates the steel plate coil so that the steel plate can be fed out. Therefore, a lifter 30 is installed behind the entrance of the rolling mill at a distance and lifts the steel sheet coil in a posture parallel to the axis of the steel sheet coil A, and With a cradle roll that receives the steel plate coil A lifted by the lifter 30 below, moves it to the table of the table lifter 10, passes it there to the payoff reel 20, and returns to the bottom of the lifting lifter 30 again. A loading car 40 is installed, and after passing the steel plate coil to the lifting lifter 30 below the lifting lifter 30, a new steel plate coil is received at a fixed position further behind the lifting lifter, and the steel plate coil is transferred to the lifting lifter again. The present invention is provided with a transfer car 50 that returns to the lower part of the vehicle. The present invention will be explained below based on an embodiment shown in the drawings. 1 to 3, a table lifter 10 is located below near the steel plate inlet of the rolling mill 1, and a payoff reel 20 is located above the table lifter 10.
is provided. The table lifter 10 consists of a table 11 and a hydraulic cylinder 12 for raising and lowering the table. Also, payoff reel 20
A mandrel 21 with a disk flange to be inserted into the center hole _A0 of the coil A is movable as a left and right set. According to the present invention, the rolling mill 1 has a lifting lifter 30 provided above the coil supply path at a distance from the entrance to the rear, and a rail 4 that can run on the coil supply path. Input car 4
0 and a transfer car 50 are provided. The lifting lifter 30 has a hydraulic cylinder 31 vertically installed from the center of the ceiling plate of the gate-shaped frame 32, and a pair of left and right hooks 33 for inserting into the center hole of the coil and suspending the coil. pair of hooks 3
3 can be moved toward and away from each other by an electric opening/closing mechanism (for example, a feed screw rod with a hook screwed thereto and its rotational drive motor) (not shown). The loading car 40 drives running wheels 41 by a motor 42, and runs between above the table lifter 10 and below the lifting lifter 30. In addition, 40 cars were introduced.
At the top, cradle rolls 43 are provided front and rear, which support the coil and actively rotate according to commands. The transfer car 50 has running wheels 51 and a motor 52 that rotationally drives the running wheels 51. A coil holder 53 is fixed to the upper side of the car. The transfer car 50 runs between the lower part of the lifting lifter 30 and the rearmost end of the coil supply path. At the rear of the rolling mill 1, there is an arm 2 with a coil press roll 2a attached to its tip, and a guide plate 3.
and protrudes toward the rear. Note that the first and second
4 in the figure is a pinch roll. In the above, the operating state will be explained step by step.
Coil A is carried to the rearmost end of the coil supply path by an external crane (not shown) and placed on a transfer car 50 waiting there. The transfer car 50 advances below the lifting lifter 30 and stops. Then, the lifting lifter 30 descends, grasps the coil A, and lifts it up. The empty transport car 50 returns to its original position. Next, when the charging car 40 retreats to just below the lifting lifter 30 and stops, the lifting lifter 30 descends, lowers the coil A being held onto the cradle roll 43 of the charging car 40, and rises. Then, the loading car 40 moves forward with the coil A loaded thereon and rides on the table lifter 10. and,
The table lifter 10 rises with the loading car 40 on it, and at the position of the payoff reel 20, the coil

[Table] As shown in the results of this test, with the device of this invention, the coil does not roll, so the coil winding does not loosen as in the conventional case, and the occurrence of scratches on the steel plate is 1/4th that of the conventional method. It decreased to below. The device of the present invention can be widely applied not only to loading coils into a double mandrel payoff reel with a slow running speed, but also to other payoff reels with a narrow coil loading space. As described above, the present invention uses two coil cars and a lifting lifter, and each coil car has its own role. Therefore, it prevents scratches caused by the rolling of the coil, which was a problem in the past, and prevents the stopper from forming. There is no need to worry about collisions between coils and coils, or rear-end collisions between coils, completely preventing damage to the coils, and helping to save labor by automating coil loading. In addition, it can be installed in a small space and has low construction costs, making it a great success.

[Brief explanation of the drawing]

Figure 1 is a front view showing one embodiment of the present invention;
The figure is a plan view, and FIG. 3 is a cross-sectional view taken from FIG. 1. A... Steel plate coil, 1... Rolling machine, 2a... Press roll, 3... Guide plate, 4... Rail, 10
...Table lifter, 11...Table, 12...
Hydraulic cylinder, 20...Payoff reel, 30...
...Hoisting lifter, 31...Hydraulic cylinder, 40...
...Entered car, 43...Cradle roll, 50...
...transport car.

Claims (1)

[Claims for Utility Model Registration] A table lifter 10 that holds the steel plate coil A below near the entrance side of the rolling mill 1 so that its axis is horizontal; and a payoff reel 20 for rotating the steel sheet coil so that a mandrill 21 is inserted into the rolling mill and the steel sheet coil A can be fed out. A lifting lifter 30 lifts and lowers the steel plate coil in a posture parallel to the axis, and receives the steel plate coil A lifted by the lifting lifter 30 below, moves it to the table of the table lifter 10, and then lifts the steel plate coil A. Pass it to the payoff reel 20 and lift it again to the lifter 3.
A loading car 40 with a cradle roll that returns to the lower position of and a transfer car 50 adapted to receive the coil and return it again below the hoisting lifter.