JPS61279616A - Control device for transfer of rolling material at dividing point of walking beam in heating furnace - Google Patents

Abstract

PURPOSE:To permit the easy positioning of rolling materials by making possible the change of the space between the rolling materials on the upper stream side and the down stream side when the rolling material transfers from the walking beam on the upper stream side to the walking beam on the down stream side. CONSTITUTION:The walking beam 1b on the down stream side descends to accept the rolling material 14 when a detector 13 detects the rolling material 14 on the walking beam 1a on the upper stream side. The position of the final rolling material 14 on the walking beam 1b on the down stream side is held recognized by a tracking device 15 and an arithmetic unit 16 for the transfer position calculates the moving position of the rolling material 14 on the walking beam 1b on the down stream side by the signal thereof. A control device 17 for the advance of the walking beams opens and closes a solenoid valve 19 by discriminating the advance distance at which the rolling material 14 arrives at the target transfer position from the present beam position. The walking beam 1a on the upper stream side is then advanced to the target position by a driving cylinder 18. The walking beam 1a on the upper stream side is then lowered and the rolling material 14 is transferred onto the walking beam 1b on the down stream side.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a walking beam splitting point flux shift control device in a splitting furnace of a walking beam heating furnace in a steel plant.

[Conventional technology] In conventional walking beam type heating furnaces, when the rolled material was transferred to the divided walking beams, the upstream and downstream walking beams were operated in synchronization. 6 For example, Figure 3 shows the Tokuko Sho 57-
It is a block diagram showing the conventional transfer device shown in the 27781 publication. The eccentric wheel (3) is a hydraulic cylinder that horizontally moves the walking beam (1).
4a) and (4b) are connection mechanisms for driving the adjacent walking beams (1) independently or in synchronization.

Next, the operation will be explained. Walking Bee:”
0"°) ~ ("c) (fMJ-"Package')'"-"" Discharge■ □1-rolling is performed, and the rolled material is continuously charged into the heating furnace, where the rolled material is is extracted and transported while being heated. After the final material of the rolled material from which the extraction of rolled material has started has been transferred to the j' walking beam (1a), this ・'ri beam (la)
b) is separated by the connecting mechanism (4a), and the walking beams (ib) and (1c) are brought into a state in which they are interlocked by the connecting mechanism (4b). In this state, the walking beam (la) of the heating furnace receives the next rolled material, and the walking beams (lb) and (lc) transport the rolled material to the extraction side according to the command pitch from the rolling mill (not shown). Furthermore, when the final rolled material moves onto the walking beam (1c), the walking beam (1b) is separated from the walking beam (1c) by the connecting mechanism (4b), and the connecting mechanism (4a) moves to the walking beam (1a). ) and synchronized drive. As described above, the connecting mechanism is operated in accordance with the progress of the rolled material, and the walking beams are driven individually or in synchronization, and when the rolled material is transferred between beams, the walking beams are driven in synchronization.

[Problems to be Solved by the Invention] Since the conventional rolled material bundle transfer device is configured as described above, the walking beams on the upstream and downstream sides must be operated in synchronization. If the walking beams are charged uniformly into the heating furnace, all the walking beams will be synchronously driven, and the advantage of the beam division cannot be utilized.

Furthermore, when transferring in synchronized operation, the conveyance speed of both walking beams is naturally the same during the operation, and there is a problem that the interval between the rolled materials cannot be changed.

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a rolling material transfer control device in which walking beams can operate at different conveyance speeds.

[Means for solving the problem] □ The transfer control device according to the present invention is applicable to rolling in a furnace:
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□ Emit a signal according to the walking beam transport amount:
The conveyance amount detection device is installed on the upstream and downstream sides:
Attached to the walking beam, the position of the final rolled material of Gubby 4 and the upstream rolled material
1 Input the position of the first rolled material into the calculation device and
□The spacing of rolled material ordered on the walking beam and
:□ Adjust the amount of movement of the upstream walking beam so that
□It is determined by a calculation device, and the amount of movement of the upstream walking beam is thereby controlled.

[Operation] The transfer control device according to the present invention controls the amount of movement of the upstream walking beam so that the distance between rolled materials on the downstream walking beam becomes a target distance between rolled materials in accordance with the conveyance speed of the downstream walking beam. Rolled material can be positioned.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings. In Figure 1 (a), (la) is the walking beam on the loading side, (lb) is the walking beam on the extraction side, and both beams (la) and (lb) are stopped at the position when retreating. . (10) and (11) are rolled material detectors in the furnace, and output a detection signal of the rolled material when the rolled material passes through each detector. Figure 1 (b) shows the walking beam (la) and (lb) both stopped at the forward position. Figure 1 (C) shows the walking beam and fixed skid viewed from above. The loading side walking beam (la) and the extraction side walking beam (lb) are designed so that they do not come into contact even if they individually move forward and backward. (8) indicates a fixed skid.

In addition, in FIG. 2, (12) is a movement amount detector that detects the amount of movement of the walking beam, (13) is a detector that detects the rolled material (14) on the walking beam, and (1) is a movement amount detector that detects the amount of movement of the walking beam.
5) is a tracking device that recognizes the current position of the rolled material from the signal of this detector (13) and the amount of movement of the walking beam; (1B) is a tracking device that determines the transfer position of the subsequent rolled material based on the signal of the tracking device (15). (17) is a walking beam advance control device that controls the forward movement of the upstream walking beam in order to transfer the rolled material to the target value of the rolled material position; (18) is the walking beam advancement control device that controls the forward movement of the walking beam to transfer the rolled material to the target value of the rolled material position; a driving cylinder for advancing, (19)
is a solenoid valve that operates the drive cylinder (18).

The operation of the present invention configured as described above is such that when the leading rolled material on the upstream walking beam is detected by the detector (13), the transfer operation between the walking beams is started, and the downstream side The walking beam is lowered to allow the reception of rolled material. The position of the final rolled material on the downstream walking beam is determined by the tracking device using the movement amount detector (12)! (15), and the transfer position calculation device (1B) is always recognized by the signal of this tracking device (15).
) calculates the transfer position of the rolled material on the downstream walking beam. The walking beam advance control device (17) determines how far the rolled material must advance from the current beam position to reach the target transfer position, opens and closes the electromagnetic valve (18), and uses the drive cylinder (18) to move the rolled material to the upstream side. The walking beam is driven to stop advancing at the target transfer position, and the upstream walking beam is lowered to transfer the rolled material onto the downstream walking beam.

In addition, in the above embodiment, a method was shown in which the rolled material was moved to the target transfer position using only the upstream walking beam.
Since the purpose of this invention is to control the distance from the preceding rolled material, if necessary, the same effect can be obtained by transferring the material using a downstream walking beam. Further, the walking beam may be driven by other means than a hydraulic cylinder, such as an electric type.

[Effect of the invention] As explained above, according to the present invention, when the rolled material is transferred from the upstream walking beam to the downstream walking beam, the interval between the rolled material in the furnace is changed between the upstream side and the downstream side. This makes it possible to control the spacing between rolled materials, easing restrictions on the movement of the walking beam, and
This has the effect of being able to change the conveyance speed of the rolled material on the walking beam.

[Brief explanation of the drawing]

1(a) to (C) are schematic diagrams showing a rolled material transfer control device according to an embodiment of the present invention, FIG. 2 is a block diagram of the transfer control device, and FIG. 3 is a conventional transfer control device. FIG. 2 is a configuration diagram of a transfer control device. In diagram I,
1 (la), (
tb) is a walking beam, □(
12) is a movement amount detector, and (13) is a rolled material detector. (14) is a rolled material. (15) is a tracking device, (16) is a transfer position calculation device, (17) is a walking beam advance control device, (18)
is the drive cylinder, and (18) is the solenoid valve. In each figure, the same reference numerals indicate the same or similar parts.

Claims (1)

[Claims] In equipment where the walking beam of a rolling heating furnace in a steel plant is divided, in the rolling material transfer device at the dividing point, when the rolled material in the furnace reaches the dividing point, the multiple walking beams are arbitrarily driven. Equipped with a calculation device that positions the rolled material on the upstream walking beam to the downstream walking beam at a commanded distance between the rolled materials, and adjusts the distance between the rolled materials in the furnace on the upstream and downstream sides of the dividing point. A rolling material crew control device for a heating furnace walking beam dividing point, which is characterized by being able to change the heating furnace walking beam division point.