JPH04167904A - Rolling equipment - Google Patents

Abstract

PURPOSE:To cut and remove irregular strip at the prescribed position with a shearing machine without stopping running of the line by providing the shearing machine as possible to cut at high velocity and providing a bypass line for treating scrap connected with outlet of the shearing machine. CONSTITUTION:When the strip S sends from the preceding process, movement of the tip part is detected with a passing detector, and when the tip part comes to the prescribed position, the detected signal is received and the shearing machine 20 is worked and the tip part of strip S is cut at the prescribed position under condition of stationary line velocity. Further, at the time of carrying the most end part of strip S, the movement as the same way as the tip part, is detected with the passing detector and after receiving this detected signal, the shearing machine is worked and the most end part is cut at the prescribed position under condition of stationary line velocity. The cut scrap S2 is introduced to the bypass line to coil this into coiler for scrap.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to rolling equipment for scrapping the tip and end portions of strips that become irregularly shaped during rolling.

[Conventional technology]

FIG. 3 shows the arrangement of each component of a conventional hot rolling equipment, in which a raw material slab is heated to rolling temperature in a heating furnace 22 and then placed on an extraction table 12.
Next, scale breaker 13. Rough rolling table 14. Rough rolling mill 15, day table 16. Cropshire 17
The strips are sequentially conveyed to a finishing mill 18 and rolled into strips. This strip is then fed onto a hot run table 19, and the irregularly shaped leading and trailing ends are cut off with a shearer 20 and then wound up with a coil rough for seven products.

Alternatively, the strip table 4 conveys the strip to the next process as it is. The strip coil wound up by the coil rough is transferred to a coil conveyor 21 and carried out to a coil cooling field. In addition, the cut and removed scraps are discharged outside by a crane or the like.

[Problem to be solved by the invention]

Figures 4 and 5 show a state in which a strip with an irregular shape at the terminal end is wound up by a coiler. It is in a state where it has sprung up. Such a coil has poor threadability and becomes a hindrance when being sent to a secondary process.

Further, it takes more effort to make the band 23 double.

Therefore, as mentioned above, before winding with the coil rough, the shearing machine 2
The irregular portions are cut and removed at zero, but in this case, conventionally, the line speed is once reduced to zero before cutting, which leads to a decrease in productivity. Further, the scraps after being cut must be discharged to the outside using a small crane or the like, which is very time-consuming.

In view of the above, the present invention provides rolling equipment that can perform the above-mentioned scrap processing without stopping the line.

[Means to solve the problem]

In order to solve the above problems, the present invention provides a rolling mill that rolls a strip into a predetermined shape, and a roller table that conveys the rolled strip.

The present invention includes a shearing machine that cuts the strip into a predetermined length at a predetermined location at high speed, a coil 2 that winds up the strip, and a bypass line for scrap processing installed connected to the outlet of the shearing machine. shall be.

[Effect]

The present invention includes a shearing machine capable of high-speed cutting.

In addition, since it is equipped with a bypass line connected to the outlet of the shearing machine for scrap processing, the tip or end of the irregularly shaped strip can be cut by the shearing machine without stopping the running of the line. Can be cut at any point.

Further, the cut and removed scraps are appropriately processed through the bypass line.

〔Example〕

The present invention will be explained with reference to the drawings. Note that the same reference numerals are given to the same devices or parts as in the prior art. FIG. 1 is a first embodiment of the present invention, showing the arrangement of components of a hot rolling facility to which the present invention is applied. 20. A shearing machine capable of high-speed cutting that cuts to a predetermined length at a predetermined location without cutting.
Runout table for strip conveyance consisting of a large number of rolls 4a 4. A coil rough for finished products, etc., which winds up the strip S fed through the vinyl roll 11 via the wrapper roll 9, is arranged.

On the other hand, it is connected to the outlet side of the shearing machine 20.

A bypass line is provided for scrap disposal.

This is for processing scrap S after cutting and removing the leading end or terminal end of the irregularly shaped strip S using a shearing machine 20, and includes a large number of magnetic rolls 5a.
Magnetic roll table that absorbs and transports more scrap S-rich 5. It consists of a large number of rolls 6a, a roller table 6 for conveying scrap percentage, a scrap coiler 8 for winding up scrap 5 sent via a pinch roll 11 via a wrapper roll 10, etc. .

The shearing machine 20 is installed in the casing 1, and has an upper blade 3a and a lower blade 3b respectively attached to a pair of upper and lower rotary tables 2a and 2b having different diameters. And upper blade 3a
The lower blade 3b is pressed against the upper and lower surfaces of the strip S to cut it, but in this case, since the rotation radii of the upper and lower blades are different, it is only after several rotations that both come into contact with the strip surface at the same time. In this way, high-speed cutting is possible by performing cutting after the rotational speed of the single-turn tables 2a and 2b has increased to a steady speed, but the details thereof will be omitted.

Next, the present invention will be explained in detail. When the strip S is sent from the previous process, the movement of its tip is detected by a passage detector (not shown).

When the tip reaches a predetermined position, the shearing machine 20 is activated in response to the detection signal, and the strip S is operated at a steady line speed.
Cut the tip of the tube from a predetermined location. Cut off scrap S! is guided to a bypass line, adsorbed and conveyed by a magnetic nozzle roll table 5, conveyed on a roller table 6, passed through a pinch roll 11, and wound up on a scrap coiler 8 via a wrapper roll 10.

On the other hand, the main body of the strip S whose tip has been cut and removed by the shearing machine 20 is placed on the runout table 4 as it is.
The top is conveyed, passed through a vinyl roll 11, and wound up into a coir rough for finished products via a wrapper roll 9. After a predetermined amount of winding is completed, the strip S is cut by a shearer 20.

The subsequent strip S is wound up in a similar manner onto another finished product coil rough.

Furthermore, when the terminal end of the strip S is conveyed, its movement is detected by a passage detector (not shown) in the same way as the leading end.
In response to the detection signal, the shearing machine 20 is activated to cut off the end portion from a predetermined location at a steady line speed, and the cut scrap 3 is guided to the bypass line as described above and wound around the scrap coiler 8. It will be done.

The coil of the strip S wound around the coil rough is banded and then sent to the next process such as a coil cooling field, and the scrap wound around the coiler 8 is discharged and processed outside by a separate means. In addition, the bypass line magnetic table 5. Guides (not shown) are provided on both sides of the roller table 6.

Next, FIG. 2 shows a second embodiment of the present invention, in which scrap S snow cut by a shearer 20 is led to a bypass line, cut into pieces by a scrap shear 24, and collected in a scrap bucket 25 for processing. The other configurations and functions are the same as those in the first embodiment, so their explanation will be omitted.

Thus, according to the present invention, it has become possible to cut the leading end or end end of a strip having an irregular shape while maintaining the line speed.

In addition, it has become possible to obtain a normal coil without irregular shapes. Furthermore, it has become possible to guide the scrap of the cut tip or end portion to a bypass line and automatically scrap it.

1. Effects of the invention] As explained in detail above, 2. The present invention is equipped with a shearing machine capable of high-speed cutting, and is also equipped with a bypass line for scrap processing connected to the output of the shearing machine. Therefore, the running of the line can be stopped or (i without slowing down,
Since the shearing machine can cut and remove the tip or end of an irregularly shaped strip at a predetermined location, productivity can be greatly improved and a normal coil without any irregular shape can be obtained. As a result, banding becomes easy and accurate banding is possible, which improves the ability to pass the sheet to the next process.

Furthermore, the cut and removed scrap is guided to a bypass line and automatically scrapped, eliminating the need to cut off unnecessary parts after winding it around a coiler, as in the conventional method.
This has the effect of greatly reducing the time required for scrap processing.

[BRIEF DESCRIPTION OF THE DRAWINGS] FIG. 1 is an overall layout diagram of a rolling equipment according to a first embodiment of the present invention, and FIG. 2 is a partial layout diagram of a rolling equipment according to a second embodiment of the present invention. Figure 3 shows the layout of hot rolling equipment;
FIG. 4 is a front view showing a conventional irregularly shaped strip wound around a coiler, and FIG. 5 is a side view of FIG. 4. Toka song, 2a... Upper rotary table, 2b... Lower rotary table, 3a Upper blade, 3b... Lower blade, 4... U/magto table, 4a... Roll, 5... Magnet roll table, 5a. ... Macnet roll, 6... Roller table, 5a... Roll, 7... Coiler for finished products, 8... -
Coiler for scrap, 9.10...trumpet roll, 1
1... Vinci roll, 20... Shearing machine, 24... Scrap shear, 25... Scrap bucket, S... Strip, S lightning... Scrap.

Claims (1)

[Claims] a rolling machine for rolling the strip into a predetermined shape; a roller table for transporting the rolled strip; a shearing machine for cutting the strip into a predetermined length at a predetermined location at high speed; a coiler for winding the strip; A rolling equipment characterized by being equipped with a bypass line for scrap processing installed connected to the outlet of a shearing machine.