JPS603528B2 - Separation device for cut shear for high speed rolling mill - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is a continuous manufacturing process for wire rods, Kabamura, etc., in which a running cut shear installed between high-speed rolling mills appropriately cuts the leading and trailing ends and cobble cuts of rolled materials, and The present invention relates to a separation device for safely and reliably guiding a cutter into a storage box installed on the rear surface of a cut shear.

Wire rods manufactured for various uses, such as mild steel wire rods and hard steel wire rods, are generally made into wire rods by heating billets in a heating furnace such as a walking hearth furnace, and then undergoing a series of rolling steps including rough rolling, intermediate rolling, and finishing rolling. After that, it is rolled up after passing through a water liner zone, and then undergoes a finishing process such as inspection and bundling before being finally shipped.

In such a wire manufacturing process, the rolled material passes through many holes, especially during rolling, and during this time the leading and trailing ends of the rolled material are gradually deformed and are locally cooled, causing so-called cracks and till fish. This is known to cause poor biting into the rolls and clogging in the guide device.For this reason, in the past, each rolling engine was equipped with a running cut shear, and a so-called crop cut was carried out. At the same time, if troubles such as misrolls occur during the rolling process,
In order to prevent the rolled material from being sent to the rear rolling mill, a so-called cople cut was performed in which the rolled material was continuously cut with a running cut shear.

To explain this conventional implementation in detail by taking as an example a running cut shear arranged at the front of a finishing rolling mill as shown in Fig. 1, the rolled material that has been intermediately rolled runs on a bus line l and is guided The running cut shear 4 is reached through the device 2 and the pinch roll 3. At this time, when the hot steel detector 5 installed in front of the pinch roll 3 detects the tip of the rolled material, the run cut shear 4 is activated. This cuts the rolled material to a predetermined length from the tip.

The cut material thus cut falls into a cut material storage box 6 arranged behind the running cut shear 4, while the rolled material whose tip has been cut passes through the bus line 1 in the storage box 6.
It passes through the Gatodo devices 15 and 7 and proceeds to the finishing mill 9 on the rear side. In this case, the deflector device 101 installed in the storage box 6 is used to guide the cut material so that it falls downward into the storage box 6. That is, as shown in FIGS. 2 and 3, this deflector device 10' generally has axe-shaped deflector arms 11 and 11a provided on both sides of the storage box 6 so as to be movable in the front and rear directions. A deflector plate 12 is provided in the storage box 6 between the deflector arms 11 and 11a so that it can be raised vertically, and
A cylinder 13 installed on the outside of one side of the storage box 6 moves the deflector arm wing 1 in the front and back direction, and a cylinder 4 installed on the outside of the other side of the storage box 6 moves the deflector plate 12. The structure is such that the pig is raised vertically.

However, when using such a deflector device, during normal rolling, the rolled material simply passes over the bus line in the storage box 6, but at this time the deflector plate 12 is at the position indicated by A in the figure. , i.e. cylinder 1
By contracting the rod 4 and extending the rod of the cylinder 13, the deflector plate 12 is kept waiting below the bass line. When this rolled material passes through and the hot steel detector placed in front of the pinch roll 3 detects the tip of the following rolled material, the rod of the cylinder i3 is extended and the rod of the cylinder 14 is extended, and the deflector The plate 12 is moved to the standby position A,
Set it in the position shown in the figure, slightly below the bus line 1. In this state, when the rolled material is cut to a predetermined length from the tip by the cut shear 4, a downward force is applied to the cut material at the time of cutting, and as a result, the cut material is stored in the lower part of the deflector plate 12. The rolled material that has fallen into the box 6 and has its tip cut passes above the deflector plate 12, passes through the guide 15, passes through the storage box outlet 6b, further passes through the guide device 7, and enters the finishing rolling mill 9 on the rear side. When the rolled material enters the rear rolling mill 9 in this way, the position of the deflector plate 12 is such that the cylinder 14 is contracted and returned from A2 to the position A, in order to prevent generation of heat due to contact with the rolled material. In addition, if a misroll detector installed at an appropriate location in the process line detects misrolls or other troubles during the finish rolling process on the back side or during the intermediate rolling process on the front side,
The deflector plate 12 is rolled by retracting the rods of the cylinders 13 and 14 from the standby position A, and once setting the deflector plate 12 inward of the storage box 6 upwards from the bus line 1 as shown by A3 in the figure. The deflector 12 prevents the material from being caught on the upper surface of the storage box 6.

At this point, the continuous cutting of the rolled material is started by the running cut shear 4, and at the same time the deflector plate 12 is
By extending the rod of the cylinder 14 from the state shown in FIG. The cut material flying in from the inlet 6a of the deflector plate 12 collides with the lower surface of the deflector plate 12, thereby preventing the cut material from entering the finish rolling process on the rear surface.
However, in recent years, as the speed of rolling mills has increased, the cutting shear itself can cope with high-speed rolling by using a flying shear or a chopping shear, but the deflector device described above cannot mechanically handle such high speeds. It was not possible to follow up properly, and various troubles occurred in actual operations.

That is, since the deflector device described above uses a complicated mechanism to move the deflector plate 12 in the vertical direction, the action of the deflector plate 12 is slow and it takes time to set it in a predetermined position, and the high speed of rolling material is required. There is a problem in that it is difficult to reliably follow the movement of the vehicle, and the stopping position of the deflector plate 12 is also inconsistent due to irregularities in the rod strokes of the cylinders 13 and 14. For this reason, the cut material cut by the cut shear 4 now enters the guide device 15, and the next rolled material or cut material collides with it and pushes the cut material to the finishing rolling mill 9 on the rear side to prevent misrolling. cause or
Alternatively, the cut material is not transferred into the storage box 6 and the entrance 6
There was also a risk that the particles would scatter outside of a. In addition, during normal rolling, the rolled material passes through the storage box 6, but in this case, the rolled material is looped downward, so it is placed at the waiting position A, which is slightly below the bus line.
It was inevitable that the rolled material would come into sliding contact with the deflector plate 12, which would often cause the rolled material to suffer from scratches, cracks, etc., resulting in a deterioration in quality. Another problem is that with the conventional deflector device described above, it is mechanically difficult or impossible to cut the rear end of the rolled material.
At present, rear end cutting is rarely performed using the running cut shear 4 because it causes troubles such as the cutting shear 4 not being inserted inside the deflector plate 12 or resting on the upper surface of the deflector plate 12 .

The above has been explained using the wire rod manufacturing process as an example, but this kind of problem is not only limited to wire rods, but also similar problems have been pointed out in cylindrical materials whose manufacturing process is similar, and now there is an urgent need for a solution. is desired.

The present invention was devised as a result of various studies in view of the current situation, and it drastically changes the mechanism of the conventional deflector device described above, and cuts the leading and trailing ends of rolled material with crop cuts and cobble cuts. We have completed a new separation device that can properly carry out the separation process, drop the cut material safely, reliably, and quickly into a storage box, and properly transfer the rolled material to the subsequent rear rolling mill.

Next, an embodiment of the first invention will be described with reference to FIG.

The first invention includes a cut material storage box 20, a separate plate insertion hole 21, a separate plate 35, and guide devices 42, 42a.
and a drive device 37. First, in the figure, above one side 20a of the storage box 20, there is a separate plate insertion hole 2 that is parallel to the bus line 1 of the rolled material and is elongated.
1 is drilled. Further, above one side 20a of the storage box 2, a guide base 3 extending horizontally outward is provided.
0 is set.

The guide base is installed so that the separate plate 35 guided by the guide devices 42, 42a can be inserted slightly below the bus line 1. Guide devices 42 and 42a and a drive mechanism 37 for propelling the separate plate 35 inward of the storage box 20 are installed on the upper surface of the guide base 30.

That is, "A drive device 37 consisting of a cylinder is fixed to the rear end side of this guide base 30 via a flange 36, and the tip of a rod group 37a of this drive device 37 is provided at the rear end of the separate plate 35. The lower surface of the separate plate 35 has a pair of legs 40, 40a each having an L-shaped cross section, leaving an insertion portion 35a into the storage box 20. The bent portions 41 and 41a of the legs 40 and 40a are supported by guide devices 42 and 42a, respectively.The guide devices 42 and 42a have a U-shaped cross section as shown in FIG. The guide frames 43, 43a are inserted into the separate plate insertion hole 3.
A plurality of upper and lower guide rolls 44, 45 and 44a, 45a are arranged perpendicularly to the upper and lower guide rolls 44, 45 and 44a, 45a in the length direction thereof, and there is a The leg portions 40, 40a
The bent portions 41 and 41a of the separator plate 35 are inserted, thereby preventing the vertical movement of the separate plate 35, so that the separate plate 35 is located slightly below the rolled material bus line l in the storage box 20 and relative to the bus line. It is designed to move horizontally and at right angles. In this embodiment, in order to prevent the separate plate 35 from moving in the left-right direction, presser plates 46, 46a are provided vertically on the back surfaces of the legs 40, 40a, and the presser plates 46, 46a and the legs Part 40, 4
Slide members 47, 47a are pasted between 0a and 0a. The above description is merely an example of the present invention, and many design changes are possible as required. For example, as another embodiment of the guide device 42, 42a, as shown in FIG.
Guide rolls 49, 49a are pivotally mounted between 8a, and the guide rolls 49, 49a are engaged with guide rails 50, 50a provided in the longitudinal direction of the guide base 30, thereby moving the separate plate 35 to the guide rails 50, 50a. The vehicle is made to run along the following lines. According to the present invention as described above, when the rolled material is first passed from the front rolling mill to the rear rolling mill by simply passing through the storage box 20, the separating plate 35 is connected to the rod 37a of the drive device 37.
is retracted and left in a waiting state outside the storage box 20.

However, when the rolled material passes through the storage box 20 and the tip of the subsequent rolled material is detected by the hot steel detector 5 provided on the front surface of the pinch roll 3, the lever is transferred to the guide base 30 via a limit switch (not shown). The rod 37a of the upper cylinder 37 extends, and the separate plate 35 is guided by the guide devices 42, 42a and pushed toward the storage box 20, so that the entrance portion 35a of the separate plate 35 passes through the insertion hole 20 of the storage box 20. It passes through and enters the storage box 20. At this time, the separate plate 35 is set slightly below the bus line 1 of the rolled material, so the separate plate 35 enters slightly below the bus line 1. In this way, separate plate 3
5 is inserted into the storage box 20, the leading end of the rolled material is cut by the running cut shear 4. At that time, the cut material is subjected to a downward force, passes under the separate plate 35, and jumps into the storage box 20, and the rolled material whose tip has been cut passes over the bus line 1 above the separate plate 35, and is stored. It enters the rear rolling mill through a guide 54 provided on the exit side of the box 20. Then, at the same time that the rolled material is bitten into the rear rolling mill, the rod 37 of the drive device 37
a contracts to pull the separate plate 35 back to the outside of the storage box 20. As described above, the rolled material passes along the bus line 1 inside the storage box 20 with the separate plate 35 set outside the storage box 20, but in the present invention, the rolled material is When the trailing edge detector detects the trailing end of the rolled material near the end, the running cut shear 4 is activated to cut the trailing end of the rolled material to a predetermined length. Since it remains set outside the storage box 20, the trailing end cut material falls smoothly into the storage box 20.

In the present invention, after finishing such rear end cutting, it goes without saying that the drive device 37 is operated to push the separate plate 35 into the storage box 20 in preparation for the rear end cutting of the next rolled material. On the other hand, in the present invention, when a problem such as a misroll occurs during the rolling process and the misroll is detected by the misroll detector installed at the rear of each rolling mill,
Continuous cutting is performed by the cut shear 4 with the separate plate 35 set outside the storage box 20, so that the cut material falls into the storage box 20 without entering the front rolling mill. It turns out.

Next, the second invention will be explained.

In the process of rolling bran material, bamboo material, etc., one rolling mill rolls various types of wire rods, etc., so it is also necessary to roll materials of different rolling sizes. In such a case, if it is attempted to separate cut materials using the separation device of the first invention, since the guide base 30 that supports the separation plate 35 is fixed to one side 20a of the storage table 20, the rolled materials will be separated. Depending on the rolling size, the separate plate 35 cannot always be advanced or retreated below the bus line 1, resulting in the same problem as in the conventional device.
Therefore, as a second invention, in the above-mentioned separation device, an adjustment device is added to the above-mentioned horizontal structure, which can finely adjust the height at which the separation plate 35 is horizontally moved with respect to the bass line 1 in the vertical direction by the guide devices 42, 42a and the drive device 37. Invented a separation device. By providing such an adjustment device, the horizontal movement height of the separate plate 35 can be adjusted quickly and accurately in accordance with the change in diameter of the reed spread size. Hereinafter, an embodiment of the second invention will be described based on FIGS. 4 and 5. Note that the same components as in the first invention are given the same numbers, and their explanations will be omitted. In the figure, the present invention includes a storage box 20, a separate plate insertion hole 21, and a separate plate 3.
5, guide devices 42 and 42a, a drive device 37, and an adjustment device 300. A support stand 22 extending horizontally outward is provided below one side 20a of the storage box 201, and this support stand 22 is fixed to the one side 20a of the storage box 20 via a flange 23. A support member 24 is installed between the other end side 22a of the support base 22 and one side 20a of the storage box 20 to support the support base 22. On the other hand, a guide base 30 is provided above the support table 22 horizontally with the support table 22, and an adjustment device 300 having the following configuration is installed between the guide bases 30 and the support table 22.

That is, a height-adjusting rod 25 is passed through approximately the center of the support base 22, and a screw 25a is formed at the lower end of the rod.
The rod 25 is threadedly engaged with a boss 26 provided on the lower surface of the boss 26, and is secured to the lower surface of the boss 26 by a lock nut 27. Further, at the lowermost end of the rod 25, the rod 2
A handle 28 is provided for rotating the rod 25, and a pressing plate 29 is fixed to the uppermost end of the rod 25. A guide base 30 is mounted on the pressing plate 29, and a plurality of fixing bases 3 are provided on the lower surface of the guide base 30 and the upper surface of the support base 22.
Arms 32, 32a and 33, 33a are arranged oppositely to each other, and the arms 32, 32a and 33, 33a
are installed in a crossed manner, and both ends of each arm are connected to each fixed base 3 through long holes 31a formed in the fixed base 31.
1 with bolts and nuts 34 or the like. In the apparatus according to the second embodiment of the invention as described above, the height of the separate plate 35 is adjusted as follows.

That is, it is necessary to set the separate plate 35 slightly below the bus line 1 of the rolled material, and for this purpose, the adjustment device 30 must be set in advance or depending on the operating situation.
The height of the separate plate 35 must be finely adjusted from the river. When this is explained in the embodiment shown in FIGS. 4 and 5, the arms 32, 32a and 33,
Loosen the nut 34 that attaches the arm 33a to the fixing base 31 to free vertical movement of the arms 32, 32a and 33, 33a, loosen the lock nut 27 below the boss 26, and use the handle 28 to tighten the rod 25. When the rod 25 is rotated, the rod 25 is raised and lowered by the threaded portion with the boss 26, thereby moving the guide base 30 up and down to finely adjust the separate plate 30 to the desired height. 32, 32a and 33, 33
This is to tighten the nut 34 and lock nut 27 of a. Further, in the embodiments shown in FIGS. 4 and 5, the guide base 30 is mounted on the support base 22 with the arms 32, 32a and 3.
3 and 33a, but in another embodiment, instead of this configuration, the adjustment device 300 is provided with fixing bases 51 at a plurality of locations on the support base 22, as shown in FIG.
The guide rod 52 may be carried into the through hole 51a drilled in the fixed base 51, and the tip of the guide rod 52 may be fixed to the lower surface of the guide base 30, and the guide rod 52 may be raised and lowered. .

The present invention has been explained above by taking the wire rolling process as an example, but the present invention can be applied not only to the manufacturing process of wire rods but also to the manufacturing process of linden materials such as burn coils, which are manufactured in the same process as wire rods. It has a wide range of applications.
According to the present invention as explained above, the separate plate 35 is moved horizontally from the outside of one side of the storage box 20 and entered into the storage box 20, so it can be moved vertically like a conventional deflector plate. Compared to the case where the separate plate 35 is moved, there is no variation in the stop position of the separate plate 35, and by finely adjusting the height direction of the separate plate 35, the cut material can fall safely and smoothly into the storage box 20. becomes possible.

Therefore, according to the present invention, it is possible not only to cut the leading end and cobble-cut of rolled material extremely stably, but also to cut the trailing end, which was conventionally considered mechanically difficult or impossible, without any hindrance. This makes it possible to prevent cracks at the rear end, such as "till fish" and material residue, and to reduce misrolls in the rear rolling process as much as possible.Furthermore, according to the present invention, the rolled material When passing through, the separate plate 35 is located outside the storage box 20, and since the inside of the storage box 20 is hollow and there are no obstacles, the rolled material slides on the separate plate 35 and creates a pickpocket or the like. Therefore, the amount of trimming in the final process is reduced, the quality is stabilized, and the cutting speed is greatly improved.Furthermore, according to the present invention, the drive mechanism for the separate plate 35 is faster than the conventional one. Since the structure is simple and all of these mechanisms are installed outside the storage box 20, troubles such as the cut material getting caught can be avoided.As described above, according to the present invention, the work when cutting the rolled material can be avoided. This technology significantly improves performance, safety, economic efficiency, etc., and provides excellent effects not seen before.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram showing the arrangement of each device between pinch rolls and finishing rolling in a conventional wire rod rolling process, Fig. 2 is a schematic front view of a conventional deflector device, and Fig. 3 is a subordinate deflector. A schematic back view of the device, FIG. 4 is a side view of the separating device according to the second invention, and FIG.
A sectional view taken along line A, FIG. 6 is a schematic explanatory diagram showing another embodiment of the guide device in the present invention, and FIG. 7 is a schematic explanatory diagram showing another embodiment of the guide base support mechanism in the present invention. FIG. 8 is a side view showing an embodiment of the separation device according to the first invention, and FIG. 9 is a sectional view taken along line BB in FIG. 8. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Figure 9

Claims (1)

[Scope of Claims] 1. A high-speed rolling mill installed on the rear surface of the cutting shear between high-speed rolling mills in the continuous manufacturing process of wire rods and bars, and having a storage box for storing the cut material cut by the cutting shear between the preceding steps. A separation device for a cut shear for a rolling mill includes: a separate plate insertion hole bored in one side of the storage box and parallel to the pass line of the rolled material; a separate plate provided on the outside of the side surface of the storage box; A guide device provided perpendicularly to the plate insertion hole and guiding the separate plate through the insertion hole slightly below the pass line of the rolled material and horizontally and at right angles to the pass line; and a drive device for advancing and retracting the separate plate into the storage box, and when cutting the tip of the rolled material, the separate plate is moved slightly below the pass line through the separate plate insertion hole from outside the storage box, and at the same time, when cutting the tip of the rolled material, The cut material is inserted horizontally and at right angles to the line, and the force applied downward during shearing causes the cut material to pass below the separate plate and fall into the storage box, and the rolled material with the tip cut remains on the pass line. On the other hand, when cobble cutting, rear end cutting, or when the rolled material is simply passing through the storage box, the separate plate is pulled out to the outside of the storage box, and the rolled material is allowed to pass directly onto the pass line. A cut shear separation device for high-speed rolling mills featuring: 2 Separate cut shears for high speed rolling mills that are installed at the rear of the cut shear between high speed rolling mills in the continuous manufacturing process of wire rods and bars and have a storage box for storing the cut material cut by the earlier run cut shear. In the apparatus, a separate plate insertion hole is provided on one side of the storage box and is horizontal to the pass line of the rolled material, a separate plate provided on the outside of the side surface of the storage box, and a separate plate insertion hole that is perpendicular to the separate plate insertion hole is provided on the outside of the side surface of the storage box. a guide device that guides the separate plate through the insertion hole slightly below the pass line of the rolled material and horizontally and at right angles to the pass line; and a guide device that guides the separate plate along the guide device in a storage box. It has a drive device that moves the separate plate forward and backward, and an adjustment device that finely adjusts the height at which the separate plate moves horizontally in the vertical direction with respect to the pass line. The separate plate is inserted through the insertion hole slightly below the pass line, horizontally and at right angles to the pass line, and the force applied downward during shearing causes the cut material to pass below the separate plate to form a storage box. The rolled material that has been dropped into the storage box and whose tip has been cut is allowed to pass through the pass line as it is, while at the time of cobble cutting, rear end cutting, or when the rolled material is simply passing through the storage box, the separate plate is placed in the storage box. A separation device for a cut shear for a high-speed rolling mill, characterized in that the cut shear separating device for a high-speed rolling mill is characterized in that the rolled material is drawn out to the outside and passed directly onto a pass line.