JPH11285916A - Shape steel flying shear and driving method for its tool rest - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely guide a tip of shape steel into a cutting metal die and to carry out flying shearing smoothly even in a large-size shape steel. SOLUTION: In this shear, the tip of shape steel can be surely inserted into a cutting metal die since the tip of the shape steel can be passed through the cutting metal die after the tip of the shape steel is passed through a roller guide 13 and centered in the vertical and horizontal directions and then a tool rest 21 is moved toward the roller guide 13 for bringing the cutting metal die close to the cutting metal die. In this way, deterioration of a product yield due to generation of damage, stop of a line, or a flaw due to a scratch accident caused by a collision of the tip of the shape with the metal die, can be prevented, so that stable cutting can be carried out.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to an H-beam, an I-beam,
Among the finishing equipment of the hot rolling line for angles, channels, steel sheet piles and other hot rolling lines, after cutting or cooling / straightening the shaped steel, it is used to cut the shaped steel between runs. The present invention relates to a method of driving the tool rest.

[0002]

2. Description of the Related Art Conventionally, as a section cutting machine for section steel used for the above-mentioned purpose, there is a section cutting machine for section steel disclosed in JP-A-6-155146. This traveling cutting machine is equipped with a slide-type cutting blade composed of a fixed blade and a movable blade having a hole shape matched to the cross-sectional shape of the product, and a product guide guide is provided at the entrance of the cutting machine that cuts while running in synchronization with the product. Is provided. The guide includes a plurality of slide guide rollers inside, and the cutting machine is elastically supported by an elastic body such as a spring. The slide type guide roller is mounted so that the stroke can be adjusted so that the product can pass through the hole shape of the cutting blade in a non-contact manner. With the above-described configuration, it is expected that the cut surface of the shaped steel does not hit the cutting blade, the cutting blade does not come into contact with the product, and the cutting blade does not wear or lose.

[0003]

However, the above-described section cutting machine for section steel still has the following problems to be solved. In other words, if the tip of the section steel or the entire bend is small, the section steel can be guided by the above-described spring-biased guide roller. The section steel that has been roller-straightened by the roller straightening machine installed in is not completely straightened, and sometimes bends greatly in the vertical and horizontal directions. A section steel having such a large bend cannot be completely inserted into the mold of the sliding cutting blade. Also, when the shape steel size increases,
The cutting reaction force is 200 to 500 tons, and it is not possible to cope with a traveling cutting machine in which the cutting machine main body travels like this traveling steel cutting machine.

Therefore, in recent years, as a running cutting machine for dealing with such a large-sized section steel, the press body is fixed on the ground, and the section steel is cut by following the movement of the section steel to be cut. There is proposed a traveling cutting machine in which only a tool rest having a cutting die to be moved is moved in a line direction by a traveling driving device.
However, since such a running cutting machine has a physical dimension exceeding 1000 mm between the guide roll and the center of the tool post, if the bending of the shaped steel is large, the tip of the shaped steel collides with the cutting die and the line is cut. An accident such as a stop may occur.

[0005] The present invention has been made in view of such circumstances, and the leading end of a large or small-sized shaped steel can be reliably guided into a cutting die. It is an object of the present invention to provide a section steel cutting machine that can be smoothly performed and a method of driving a tool post thereof.

[0006]

According to the present invention, there is provided a semiconductor device comprising:
The driving method of the tool rest of the section steel cutting machine according to the above-described method is characterized in that a roller guide is arranged on the upstream side of the tool cutting section having a tool post movable along a traveling rail. In the method of driving the tool rest, the tip of the running section steel is centered in the vertical and horizontal directions by passing through the roller guide, and the tool rest movable on the traveling rail is directed toward the roller guide. Move the cutting die composed of a fixed blade and a moving blade having the same hole shape as the shape steel mounted on the tool post, and bring the cutting die close to the tip of the shape steel, and then attach the tip of the shape steel to the cutting die. After passing, the tool rest moves downstream in synchronization with the tip of the section steel, and at the time of moving to the cutting section, the movable blade is moved up and down with respect to the fixed blade to remove the section steel. I cut it while running.

According to a second aspect of the present invention, there is provided a cutting machine for cutting a section steel, which includes a cutting die including a fixed blade and a movable blade having the same hole shape as the section steel and movable along a traveling rail. A cutting press for driving the cutting die to cut the shaped steel, wherein the roller rail guide is arranged upstream of the shaped steel traveling cutting machine, A rail extension is formed by extending the upstream side toward the roller guide, and the tool post is configured to be movable to a position close to the roller guide along the rail extension.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described with reference to the accompanying drawings to provide an understanding of the present invention. Note that the present embodiment is described on the assumption that the section steel to be cut is an H-section steel 28 (see FIG. 15 and the like).

First, referring to FIG. 1, there is shown in a block diagram a positional relationship in a refinement facility of a hot section steel rolling line of a section steel cutting machine 14 according to an embodiment of the present invention. As shown in the figure, the refining equipment of the hot section steel rolling line is a hot-rolled high-temperature H rolled by a hot rolling mill from upstream to downstream.
A cooling floor 10 for cooling the section steel 28 to room temperature;
Straightening machine entrance guide 11 for transporting section 28 and H section 2
A roller straightening machine 12 for removing a bend of an H-beam 28;
H-shaped steel 28 for inserting into a die of a cutting die to be described later.
And a running cutting machine 14 for cutting the H-shaped steel 28 while running. Some hot steel rolling lines do not include the straightening machine entrance guide 11 and the roller straightening machine 12.

Next, with reference to FIGS. 2 and 3, the configuration of the roller straightening machine 12, the roller guide 13, and the running cutting machine 14 will be described. First, the configuration of the roller straightening machine 12 will be described.
The lower correction rollers 15, 16 are alternately arranged, and one of the upper and lower rollers is driven, and the other is idle.

[0011] The traveling cutting machine 14 will be described. An electric crank type pressing press 18 is provided above a traveling cutting machine base 17 fixedly installed on the floor surface. A traveling rail 19 is attached to each of the upper surface of the pressing press 18 and the lower surface of the pressing press 18.

A tool post 21 is provided between the cutting machine base 17 and the clamp-type pressing press 18 so that the tool post traveling mechanism 2 can be used.
2 so as to be movable in the front-rear direction along the traveling rail 19. The tool post 21 incorporates a cutting die (sliding cutting blade) including a fixed blade and a movable blade having a hole shape corresponding to the cross-sectional shape of the H-shaped steel 28. In the present embodiment, the tool post traveling mechanism 22 has a rack rod 22a having one end connected to the tool post 21 and a rack formed on the lower surface, and a pinion 22b meshed with the above-mentioned rack fixed to the output shaft. It consists of a rotating motor. In addition, in FIG.
A cutting crank drive motor 24 for driving the pressing press 18 and a cutting crank reduction mechanism 25 are provided.

The roller guide 13 provided between the roller straightening machine 12 and the running cutter 14 has a roller guide base 26.
And the roller guide frame 27 is provided with an H
It is arranged above and below the pass line 29 of the section steel 28,
It is configured by attaching lower rollers 30 and 31 and left and right rollers 32 and 33 disposed at left and right positions of the pass line 29. In the present embodiment, the left and right rollers 32,
33 is arranged on the upstream side of the upper and lower rollers 30 and 31.

The roller guide 13 includes upper and lower rollers 30,
31 and upper and lower, left and right roller advance / retreat cylinders 34 which advance / retreat the left and right rollers 32 and 33 toward the pass line 29,
35, 36 and 37 are provided. The position of the upper, lower, left and right roller advance / retreat cylinders 34, 35, 36, 37 can be set in accordance with the size of the steel shape using any of an electric cylinder, a hydraulic cylinder, and a pneumatic cylinder. As shown in FIG. 2, the upper roller advance / retreat cylinder 34 is configured to advance / retreat the upper roller 30 to / from the pass line 29 via the upper roller swing arm 38. A receiving roll 39 is mounted on the upstream side of the roller guide base 26.

In the refining equipment for a hot section steel rolling line having the above-described configuration, the upstream end of the running rail 19 extends toward the roller guide 13 as shown in FIGS. 2 and 4 to 13. And form a rail extension 19a. With this configuration, as described later, the tool post 21
Can be moved to a position close to the roller guide 13 by driving the tool post traveling mechanism 22, and the cutting die attached to the tool post 21 can be moved by the roller guide 13.
Can be brought close to the tip of the H-shaped steel 28 that has passed through.

Next, the cutting machine 1 having the above-described configuration will be described.
In regard to the driving method of the tool rest of the section cutting machine of the section steel using No. 4, in relation to the refining equipment of the hot section steel rolling line,
This will be described with reference to FIGS.

The H-shaped steel 28 rolled by a hot rolling mill (not shown) is transferred to the roller straightening machine 12 through the cooling floor 10 and the straightening machine inlet guide 11 as shown in FIG. FIG.
In the roller straightening machine 12 shown in FIG. 1, for example, a bending moment starts to be applied to the first upper and lower straightening rollers 15 and 16, and subsequently, the subsequent upper and lower straightening rollers 15 and 16 reduce the yield to the yield bending moment in the opposite direction. Then, the reduction is sequentially reduced. During this time, the vertical bending of the H-section steel 28 is removed. However, the bending of the end of the H-section steel 28 is difficult to correct because the upper and lower correction rollers 15 and 16 are alternately arranged. On the other hand, the lateral bending is caused by the upper and lower straightening rollers 1.
It is corrected to some extent by strengthening the thrust mechanism provided in 5 and 16.

The H-shaped steel 28 whose bending has been straightened in this manner is then passed through the roller guide 13 to the traveling cutting machine 14.
To be cut off during the run. That is, in FIGS. 4 and 14, the roller guide 13 and the running
Is in a standby state, and the tool rest 21 is located at the forefront of the rail extension 19a of the traveling rail 19 extended to the inter-cutting cutter 14, and includes upper and lower rollers 30, 31 and left and right rollers 32, 33 are all in the retracted position.

5 and 14, the tool rest travel mechanism 22 is driven to advance the tool rest 21 upstream from the cutting machine 14 along the rail extension 19a, and comes closest to the roller guide 13. Move to the position (closest position).
As a result, the cutting die having the fixed blade and the movable blade in the tool rest 21 is also moved to the position closest to the roller guide 13 (closest position).

As shown in FIG. 6 and FIG.
After passing the shaped steel 28 between the left and right rollers 32, 33,
By operating the left and right roller advance / retreat cylinders 36 and 37,
The right rollers 32, 33 press both sides of the H-section steel 28,
The centering in the left-right direction is performed on the cutting die of the tool rest 21 while correcting the left and right bending of the section steel 28. In this state, the lower surface of the H-shaped steel 28 is supported by the receiving roller 39.

After centering in the left and right directions, the H-shaped steel 28 was passed between the upper and lower rollers 30 and 31 as shown in FIGS. Then, the upper roller advance / retreat cylinder 34 and the lower roller advance / retreat cylinder 35 are operated, and the upper and lower rollers 30 and 31 cause the H-section steel 2 to move.
8 Straighten upward and downward bends. In this way, first, while correcting the left and right bending of the H-section steel 28, and then correcting the upward and downward bending, the H-section steel 28 can be moved with respect to the cutting die of the tool rest 21. Therefore, the centering is reliably performed from the left, right, upper, and lower directions. In this state, H
The tip of the section steel 28 is located closest to the cutting die.

As shown in FIG. 9 and FIG.
Is passed through the cutting die of the tool rest 21. As described above, since the tip of the H-shaped steel 28 is located closest to the cutting die, the H-shaped steel 28 can reliably pass through the cutting die without colliding with the cutting die. The H-shaped steel 28 is caused to travel further downstream, and the tool rest traveling mechanism 22 is driven to move the tool rest 21 to the start end of the cutting section S following the traveling of the H-shaped steel 28. At this time, the traveling speed of the tool post 21 is made slower than the traveling speed of the H-beam 28 so that the H-shaped steel 28 does not come off from the cutting die of the tool post 21. The control is performed by H (not shown).
This is done by a measuring roll that measures the length in contact with the section steel.

As shown in FIGS. 10 and 17, when the cut length is measured and the cut length is reached, the running speed of the tool rest 21 is synchronized with the running speed of the H-shaped steel 28, that is, measuring is performed. When it reaches the vicinity of the cutting position P when the length of the H-section of the roll coincides with the measured length of the H-section, the pressing press 18 is driven to move the movable blade in the cutting die up and down with respect to the fixed blade so that the H-section 28 Is cut to a fixed length. afterwards,
As shown in FIG. 11, the tool rest 21 is decelerated, and stops at the end point of the cutting section S.

As shown in FIGS. 12 and 17, the tool post traveling mechanism 22 is driven again to move and stop the tool post 21 to the start end of the cutting section S. Thereafter, as shown in FIG. By driving the traveling mechanism 22 again, the tool post 21
Moves to the downstream side following the H-shaped steel 28, and when synchronized with the H-shaped steel 28, that is, when the cutting position P is reached, the pressing press 18 is driven and the H-shaped steel is cut by the cutting die. 28 is cut to a fixed length. FIG. 13 shows a state in which the H-section steel 28 has been cut at the cutting position P and then stopped at the end point of the cut section S. Thereafter, the required number of H-section steels 28 are cut at a fixed size by repeating the same steps.

As described above, in the present embodiment, the H-section steel 2
8 is centered by passing through the roller guide 13, the tool post 21 is moved toward the roller guide 13, the cutting die is brought close to the tip of the H-shaped steel 28, and the tip of the H-shaped steel 28 is cut by the cutting metal. After passing through the mold, the tool post 21 is moved downstream in synchronization with the tip of the H-section steel 28, and when the tool post 21 is moved to the cutting section S, the cutting mold is driven to cut the H-section steel while running. ing.

Therefore, the tip of the H-shaped steel 28, which is the material to be cut, can be reliably inserted into the cutting die, and a collision accident and a scratch caused by colliding with the cutting die can be prevented, and a stable operation can be achieved. Cutting work can be performed.

In the present embodiment, the cutting die of the tool rest 21 is brought close to the H-shaped steel 28 centered by the roller guide 13 simply by extending the traveling rail 19 toward the roller guide 13. Therefore, the equipment cost for this can be reduced as much as possible, and it is economical.

As described above, the present invention has been described with reference to one embodiment. However, the present invention is not limited to the configuration described in the above embodiment, and is described in the claims. It also includes other embodiments and modifications that can be considered within the scope of the matters described.

[0029]

According to the first aspect of the present invention, there is provided a method of driving a tool rest of a section steel cutting machine according to the first aspect of the present invention, and the centering of the section steel through a roller guide. After moving the tool post toward the roller guide to bring the cutting die close to the tip of the shaped steel, the tip of the shaped steel can be passed through the cutting die. It can be inserted securely, and it can prevent smashing accidents and scratches caused by colliding with them,
A stable cutting operation can be performed.

According to the second aspect of the present invention, the cutting die of the tool rest is brought close to the section steel centered on the roller guide only by extending the traveling rail toward the roller guide. Therefore, the equipment cost can be reduced as much as possible, which is economical.

[Brief description of the drawings]

FIG. 1 is a block diagram of a refinement facility for a hot section rolling line equipped with a section steel cutting machine according to the present invention.

FIG. 2 is a front view of a section steel cutting machine and the like according to the present invention.

FIG. 3 is a side view of the same.

FIG. 4 is a process explanatory view of a method of driving a tool rest of the section steel cutting machine according to the present invention.

FIG. 5 is a process explanatory view of a driving method of a tool rest of the section steel cutting machine according to the present invention.

FIG. 6 is a process explanatory view of a driving method of a tool rest of the section steel cutting machine according to the present invention.

FIG. 7 is a process explanatory view of a method for driving a tool rest of the section steel cutting machine according to the present invention.

FIG. 8 is a process explanatory view of a driving method of a tool rest of the section steel cutting machine according to the present invention.

FIG. 9 is a process explanatory view of a method of driving a tool rest of the section steel cutting machine according to the present invention.

FIG. 10 is a process explanatory view of a driving method of a tool rest of the section steel cutting machine according to the present invention.

FIG. 11 is a process explanatory view of a driving method of a tool rest of the section steel cutting machine according to the present invention.

FIG. 12 is a process explanatory view of a method of driving a tool rest of the section steel cutting machine according to the present invention.

FIG. 13 is a process explanatory view of a method for driving a tool rest of the section steel cutting machine according to the present invention.

FIG. 14 is a process explanatory view of a method of driving a tool rest of the section steel cutting machine according to the present invention.

FIG. 15 is a process explanatory view of a method of driving a tool rest of the section steel cutting machine according to the present invention.

FIG. 16 is a process explanatory view of a driving method of a tool rest of the section steel cutting machine according to the present invention.

FIG. 17 is a process explanatory view of a method of driving a tool rest of the section steel cutting machine according to the present invention.

[Explanation of symbols]

P Cutting position S Cutting section 10 Cooling floor 11 Straightening machine entrance guide 12 Roller straightening machine 13 Roller guide 14 Long running cutting machine 15 Upper straightening roller 16 Lower straightening roller 17 Running cutting machine base 18 Press press 19 Running rail 19a Rail extension Reference Signs List 21 turret 22 turret travel mechanism 22a rack rod 22b pinion 24 cutting crank drive motor 25 cutting crank reduction mechanism 26 roller guide base 27 roller guide frame 28 H-section steel (material to be cut) 29 pass line 30 upper roller 31 lower roller 32 Left roller 33 Right roller 34 Upper roller reciprocating cylinder 35 Lower roller reciprocating cylinder 36 Left roller reciprocating cylinder 37 Right roller reciprocating cylinder 38 Upper roller swing arm 39 Receiving roll

Claims (2)

[Claims] 1. A method for driving a tool rest of a profiled steel cutting and cutting machine in which a roller guide is disposed upstream of a cutting and cutting tool having a tool rest movable along a traveling rail, The tip of steel is centered in the vertical and horizontal directions by passing through the roller guide, and the tool rest movable on the traveling rail is moved toward the roller guide to form the tool mounted on the tool rest. A cutting die comprising a fixed blade and a moving blade having the same hole shape as steel is brought close to the tip of the shaped steel, and the tip of the shaped steel is passed through the cutting die. Moving to the downstream side in synchronization with the tip of the moving blade, and at the time of moving to the cutting section, the movable blade is moved up and down with respect to the fixed blade to cut the section steel during running. Driving method of the tool post of the section cutting machine for section steel. 2. A tool rest which incorporates a cutting die comprising a fixed blade and a movable blade having the same hole shape as a shape steel and is movable along a traveling rail, and said cutting die is driven by driving the cutting die. And a pressing press that cuts the section.In the running cut-off machine for section steel, wherein a roller guide is arranged on the upstream side of the section cutting machine for section running, the upstream side of the running rail is extended toward the roller guide. A running cutting machine for a shaped steel, wherein a rail extension is formed, and the tool post is configured to be movable to a position close to the roller guide along the rail extension.