JPH04111905A - Continuous rolling mill - Google Patents

Abstract

PURPOSE:To perform the work for removing cobble remotely and safely and to improve working rate of line by taking out a cobble which is generated between rolling stands from between rolling stands with a cobble taking-out device. CONSTITUTION:When continuous rolling is executed by passing a sheet material 1 through the rolling stands S1-S5, in the case the sheet material 1 is broken and, for example, the cobble 1a is generated between the rolling stands S2, S3, the sheet material 1 is cut with a shearing device 5 which is provided between the rolling stands S1, S2. Thus the cobble 1a is made into the state that it is separated from the sheet material 1. Next, the cobble taking-out device 9 is moved along a guide rail 6 and situated in the vicinity between the rolling stands S2, S3 where the cobble 1a is generated. In this state, the cobble is taken out from between the rolling stands S2, S3 by operating the turning table and arm of the cobble taking-out device 9 and attracting the cobble 1a with an electromagnetic magnet at the tip of the arm.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a continuous rolling apparatus that continuously rolls a plate material using a plurality of rolling stands arranged in tandem.

[Prior Art] A continuous rolling apparatus as a finishing rolling line has, for example, five rolling stands St, as shown in FIG.
82.83. S4.85 are installed in tandem, and the plate material 1 that has been roughly rolled in the rough rolling process and wound into a coil shape is rewound by the unwinding machine 2, passed through the rolling stands S1 to S5 sequentially, and then finished rolled and finished. The plate material 1 after rolling is transferred to the winder 3
Wind it up into a coil. Note that 4 indicates a coil car.

In such continuous rolling equipment, during continuous rolling, accidents often occur in which the plate material 1 is cut at a position between the rolling stands S1 to S5, and in this case, each of the rolling stands S1 to S5
Since the rotation of the roll 5 cannot be stopped immediately, for example, if the plate material 1 is cut between the rolling stands S2 and 83, a cobble 1a will be formed between the rolling stands S2 and 83 as shown by the two-dot chain line. Also, when the leading or trailing end of the plate material 1 passes through the rolling stand, cobbles 1a often occur.
There is a problem that occurs. In other words, if the tip of the plate 1 does not fit into the roll properly, a cobble 1a will form at the tip of the plate 1, and when the rear end of the plate 1 comes out of the roll, the rear end (butt end) will move horizontally (horizontal). direction), a cobble 1a will be formed at the rear end of the plate 1. Therefore, when cobble 1a occurs like this,
It is necessary to remove this cobble 1a, which has conventionally been done manually by workers.

[Problems to be Solved by the Invention] However, manual removal of the cobble 1a takes a lot of time between narrow stands, and there is a problem in that the operating rate of the device is significantly reduced. The working environment was poor as the equipment was contaminated with oil, and workers were forced to do dirty work.

Therefore, the present invention aims to enable cobble removal work to be performed remotely without manual intervention, to save labor and improve work efficiency of workers, and to improve line operation rate. be.

[Means for Solving the Problems] In order to solve the above problems, the present invention provides a continuous rolling mill in which a plurality of rolling stands are installed in tandem, in which cobbles are removed from between the rolling stands near the rolling stands. The structure includes a cobble removal device that allows the cobble to be taken out.

[Function] If cobble occurs between rolling stands during rolling,
Cut the board near the cobble to separate the cobble from the board. In this state, the cobbles are removed from between the rolling stands by remote control of the cobble removal device. Therefore, manual work by workers is not required.

[Example] Embodiments of the present invention will be described below with reference to the drawings.

1 and 2 show an embodiment of the present invention, in which, like the continuous rolling mill shown in FIG. 4, five rolling stands S1 to S5 are installed in tandem.
Between any of the rolling stands 81 to 8 (in the embodiment, between rolling stands 81, 82 and 83.
84), a shearing device 5 for cutting the board 1
is installed so that the plate material 1 can be cut between the rolling stands by the shearing device 5, and the rolling stands S1 to a are
A guide rail 6 extending parallel to the rolling line L is provided on the drive side of the rolling line L, and the guide rail 6 is supported by a housing 7 that constitutes a rolling stand via a support member 8, and on the guide rail 6, A cobble takeout device 9 is movably mounted to take out the cobble 1a generated between the rolling stands 5l and 85 by remote control, and the cobble takeout device 9 takes out the cobble 1a between the rolling stands S+ and 8s. A conveyor 10 for receiving and conveying the cobble 1a,
A cobble 1a installed parallel to the guide rail 6 and conveyed by the conveyor 0 below one end of the conveyor 0.
A cobble box 11 is installed to accommodate the.

The cobble extraction device 9 includes a cart 13 that can be moved along a guide rail 6 by a traveling motor 2, and a worm wheel mechanism 1 driven by a turning motor 4.
5, a swivel base 16 provided on the trolley 13 so as to be freely swivelable, an arm 18 supported by a cylinder 7 to be freely undulating on a post 2o erected on the swivel base 16, and an undulating end of the arm 18. The structure consists of an electromagnetic magnet 19 attached as a cobble holder, and a television camera 21 for monitoring the movement of these electromagnetic magnets 19 and the arm 18. In addition, 22 is pinion stand 2
3 shows a drive motor for driving the rolling stand via 3.

When continuous rolling is performed by passing the plate material 1 through the rolling stands S1 to S5, if the plate material 1 breaks and, for example, a cobble 1a occurs between the rolling stands S2 and 83, the rolling stand The plate material 1 is cut by a shearing device 5 installed between 5I82. This allows Cobble 1
a is in a state where it is separated from the plate material 1. Next, the cobble removing device 9 is moved along the guide rail 6 and positioned near the rolling stands S2 and 83 where the cobble 1a has occurred. In this state, the revolving table 15 and arm 18 of the cobble takeout device 9 are operated, and the electromagnetic magnet 19 at the tip of the arm 18 attracts the cobble 1a to the rolling stand 8.
2.83, and then operate the swivel table I4 and arm 18 to move the cobble 1a attracted to the electromagnetic magnet 19 above the conveyor 10, release the adsorption of the electromagnetic magnet 19, and move the cobble 1a onto the conveyor. Reduce to 10. The cobble 1a received by the conveyor 10 is conveyed by the conveyor 10 and stored in a cobble box 11 placed below the end of the conveyor 10.

In this way, the cobbles 1a can be removed by remote control using the shearing device 5 and the cobble removal device 9, so manual labor by an operator is not required.

Next, FIG. 3 shows another example of the cobble carrier, which is a tong 25 which is opened and closed by a cylinder 24.

In the case of the tongs 25 as a cobble carrier shown in FIG.
The cobble 1a can also be used for materials that are not electromagnetically attracted, such as hot-rolled materials or non-magnetic materials, which is advantageous in this respect.

In the above embodiment, the shearing device 5 is connected to the rolling stand 81.
．． The case where it is installed between 82 and 83.81 is shown,
It is not limited to this position, and it may be installed at an appropriate position between the stands, and although the example shows a case where five rolling stands are installed, there is no limitation to the number of stands. Furthermore, the cobble extraction device may be installed in a fixed position or may be movable on a rail provided in a direction intersecting the line, and various changes may be made without departing from the gist of the invention. Of course you can get it.

[Effects of the Invention] As described above, according to the continuous rolling apparatus of the present invention, the cobbles generated between the rolling stands can be taken out from between the rolling stands by the cobble take-out device, so that it is possible to take out the cobbles generated between the rolling stands from between the rolling stands. It is possible to safely remove cobbles remotely without forcing workers to perform dangerous or dirty work, which can improve line operation rates and facilitate automation, resulting in labor savings and work efficiency. It has the excellent effect of improving efficiency.

[Brief explanation of drawings]

Fig. 1 is a schematic side view showing one embodiment of the continuous rolling apparatus of the present invention, Fig. 2 is an enlarged view taken along the line nn in Fig. 1, and Fig. 3 shows another example of the cobble carrier. FIG. 4 is a schematic side view showing an example of a continuous rolling mill. 1... Plate material, 1a... Cobble, 5... Shearing device, 6
...Guide rail, 9...Cobble extraction device, Sl,
S2゜83, Sa, Ss...Rolling stand, L.
・Rolling line. sect

Claims (2)

[Claims] (1) A continuous type rolling mill comprising a plurality of rolling stands installed in tandem, characterized in that a cobble removal device is provided near the rolling stands to take out cobbles from between the rolling stands. rolling equipment. (2) In a continuous rolling machine with a plurality of rolling stands installed in tandem, a guide rail is provided near the rolling stands parallel to the rolling line, and cobbles can be taken out from between the rolling stands on the guide rail. A continuous rolling mill characterized in that the cobble take-out device is movably provided along the guide rail.