JPS6160897B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to improvements in inlet equipment in continuous strip processing lines, such as continuous strip cleaning lines and continuous strip annealing lines.

A continuous strip annealing line generally consists of an inlet section, a continuous processing section, and an outlet section. For example, in the case of a continuous strip annealing line,
Strip loopers are installed on both sides of the annealing furnace so that the strip can always move through the annealing furnace at a constant speed even when the strip is stopped at the entry and exit sides. The inner and outlet loopers of these strip loopers have a short strip stop time on the outlet side, so it can be handled with a small capacity and small size, or the inlet looper has strips added together to form a continuous strip. This method has the disadvantage that it requires a large capacity and large device to absorb the strip stoppage time required for replenishing the strip.

Conventionally, as an input side device of such a processing line, as shown in FIG. , 1', leveler 2, 2', shear 3, 3', end plate processing device 4,
4', the deflector rolls 5, 5', and 6 are equipped with two systems of strip feeding devices arranged in this order toward the connecting machine 9 side, and the remaining amount of coils in the unwinding machine of the preceding strip being processed in a continuous line is Just before the end, the leading strip is split at the tail end by the shears 3, 3', and the tail end of the leading strip is transported to the splicing machine position and stopped. transporting the leading end of the trailing strip that has been kept on standby at the front position to the connecting machine position and overlapping with the tail end of the leading strip;
The line is started by connecting with connecting device 9. The distance between the shears 3, 3' and the connecting machine 9 is about 10 m in actual equipment, and the strip between them is line speed (line speed is about 100~
1000m/min), it takes a long time to connect the leading and trailing strips (particularly the connection preparation time), which limits the ability to reduce the capacity and size of the input looper. It was hot.

The present invention has been made to eliminate the above-mentioned drawbacks, and involves splitting the tail end of the leading strip using a shear installed just before the splicing machine, and immediately inserting the pass line of the trailing strip into the pass line at the pass change table after dividing the leading strip. The present invention aims to provide a processing line inlet side device that reduces the strip stop time at the inlet side by doing this, and enables a significant reduction in equipment costs by reducing the capacity and size of the inlet looper. It is something to do.

Examples thereof will be described below with reference to the drawings. FIG. 2 shows a continuous strip annealing line as an example of a processing line. The line can be roughly divided into an inlet section A from the unwinding machines 1, 1' to the connecting machine 9, an annealing furnace 10 that continuously anneales the strip, and a tower type or horizontal type ( Continuous processing section B consisting of strip loopers 11, 11' (horizontal type not shown)
and an outlet section C from the shear 12 to the winder 13. Reference numerals 14 and 14' indicate pinch rolls for feeding the strip installed in front and behind the strip looper on the input and output sides.

As shown in FIG. 3, the entry side A includes a mechanical or welding type connector 9 that connects the leading strip and the trailing strip, a shear 8 installed just before the connector 9, and a shear 8 installed just before the connector 9. A past-engine table 7 is installed in front of the shear 8 so that it can be raised and lowered. devices 4, 4', deflector rolls 5, 5',
6 is composed of two systems of strip supply devices arranged in this order facing the pass change table 7. Although the deflector roll 6 is provided so as to be able to move up and down independently, it may also be attached to the entrance side of the past-engine table 7.

Since the present invention is configured in this way, now
As shown in the figure, the strip 15 delivered from the upper strip supply device is processed in a continuous line as the preceding strip, and the strip 15' from the lower strip supply device is cut off with a shear 3' to remove the defective end portion, and then passed through the pass-change table 7. Do what is waiting. When the amount of coil stripping in the unwinding machine 1 is about to end, a termination signal is issued from a detection device (not shown), the unwinding machine 1 decelerates and stops, and at the same time, the entry side strip looper 11 starts operating. Due to the operation of this entrance side looper 11, the strip 15 is moved to the entrance side A.
Even while it is stopped, it moves through the annealing furnace 10 at a constant speed and tension. In response to the unwinding machine stop signal, the strip feeding pinch roll 14 and the shear 8 are activated, and the shear 8 divides the preceding strip. Thereafter, the tail end of the leading strip is moved to the connecting machine position under the control of the pinch roll 14 and stopped. On the other hand, upon receiving the division signal from the shear 8, the pass change table 7 immediately moves up and performs a pass change. In parallel with this, the unwinder 1' is operated, and the strip 15' is fed through the shear 8 to the connecting machine position, where it overlaps the tail end of the preceding strip and is stopped. Subsequently, the connecting device 9 is operated and both strip ends are connected, and immediately the pinch roll is opened, the input looper is stopped, and the lower strip supply device is started to start the line.

Incidentally, the amount of strip in the input side looper 11 consumed when the stripping at the input side part A is stopped is gradually restored while the line is in operation. The strip remaining in the upper strip supply device is either wound up by reversing the unwinding machine 1 while the line is in operation and taken out from the unwinding machine 1, or rewound to the shear 3 and then cut by the shear 3 and sent to the end plate processing device. 4 to be removed as scrap. Then, a new strip coil is loaded into the unwinding machine 1, and after the tip of the strip is removed by the shear 3, it is passed through the pass change table 7 and left on standby. Thereafter, by repeating the above operations, the strip coil is made into a continuous strip and processed in sequence.

As described above, in the present invention, the leading strip is divided by a shear installed just before the splicing machine, and immediately after the division, the trailing strip is loaded into the pass line on the pass change table, and both strips are transferred to the splicing machine. By reducing the amount, the stripping stop time at the entry side can be greatly shortened, and a small entry side stripper with a small capacity can be used, which can greatly contribute to reducing equipment costs. There is an effect.

[Brief explanation of the drawing]

Fig. 1 shows a conventional example of a continuous strip processing line entrance device, Fig. 2 shows a continuous strip annealing line, and Fig. 3 shows a continuous strip processing line entry device according to the present invention. FIG. 7... Pastienge table, 8... Shear,
9... Connector.

Claims (1)

[Claims] 1. In the inlet side equipment of a continuous strip processing line having two strip feeding devices, a shear and a pass change table are placed in this order from the splicing machine immediately before the splicing machine, and the shear and past change table are placed in this order from the splicing machine side, and the shear and past change table are placed in this order from the splicing machine side, and after the tail end of the preceding strip is split. An entry side device for a continuous strip processing line, characterized in that it is constructed so that trailing strip can be immediately charged into the pass line.