JPS637884B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a running type shearing device, and more specifically, the present invention relates to a running type shearing device, and more specifically, it is configured to shear a traveling material such as a slab, which is a material to be sheared, while maintaining the traveling state during traveling. This invention relates to a running shear device.

For example, slabs that are continuously cast from a continuous casting machine and run on conveyor rollers, etc.
Must be cut to length.

In such cases, conventionally, a shearing device was installed in the middle of the line, the running of the slab was temporarily stopped, and the shearing device was operated to shear the slab.

If shearing work is performed with the slab once stopped, the operation of driving the slab again after cutting must be repeated, which not only reduces work efficiency due to time loss, but also causes the slab to stop traveling.
An extra control mechanism is required to control the rerun, and energy loss occurs. Furthermore, since the temperature of the continuously cast slab drops, it has to be reheated during rolling in the subsequent process, resulting in a loss of thermal energy and also having the disadvantage of increasing the cutting force of the slab. .

A shearing device proposed to solve these problems is a running type shearing device. This running type shearing device synchronizes the shearing device main body with the traveling speed of the slab and moves it in the direction of slab travel, shearing the slab, without repeating the operation of stopping and re-driving the slab. The aim is to make it possible to perform these continuously.

However, in this case, for example, if the lower blade of the shearing device is fixed and the upper blade is lowered to cut the slab, the lowering of the upper blade will push the cut end of the upper blade of the slab downward. This may damage the conveyor roller at the bottom and prevent reliable cutting, or depending on the mounting position of this roller, the tip of the cut slab in the conveyance direction may be lifted. However, the slab having a predetermined length is not reliably supported on the conveying roller table and conveyed, which causes problems such as deformation of the slab which is in a softened state at high temperatures.

In order to deal with such problems, deblessing tables such as those shown in FIGS. 1 to 3 of Japanese Patent Application Laid-Open No. 53-91483, for example, have been known. This depressing table is a roller table that is installed at the rear of the running shearer and transports the material to be sheared. They are integrally connected and move in the running direction of the shear as the running shear is sheared, and the shear side is configured so that the cutting blade is pushed down into the material and pushed down as the shear is sheared. It is something.

In addition, between the rear end of the depressing table and the fixed table installed behind it, there is a large gap between the rollers corresponding to the travel of the shearing machine. A tilting roller unit is provided which brings the end portions into contact and tilts the sheared material downward from the conveyance path to release it.

However, such conventional devices have the following problems.

That is, although the depressing table can certainly avoid the phenomenon of the cutting force of the shearing machine acting on the table, the depressing table must be moved every time the material to be sheared is sheared. Not only does it require a large driving force and the equipment is also large-scale, but it also obstructs the smooth movement of the shearing machine itself. Some of the material to be sheared, such as rear end crops, that cannot be transported remains at the top, but in order to remove this remaining material by dropping it to the bottom of the shearing machine, the shearing machine main body and depressing table are connected. This connection becomes an obstacle,
It is not possible to allow the shear to fall from between the shearing machine body and the front end of the depressing table.

In addition, since the tilting roller of the conventional structure is configured to be contacted and reversed by the backward movement of the depressing table, the impact force at the time of contact acts on the tilting roller, which has an adverse mechanical effect on the tilting roller itself. There is also a problem that not only the supply but also the operation itself lacks reliability and smoothness.

The present invention has been made in order to eliminate the above-mentioned drawbacks of the conventional method, and is a so-called down-cut type shearing type shearing method in which the lower cutter is fixed and the upper cutter is lowered to shear the material to be sheared. In the device, the shearing device body is moved in the running direction of the sheared material in synchronization with the traveling speed of the material to be sheared, and the material to be sheared is lowered in synchronization with the lowering of the upper cutter to ensure that the material is sheared. The shearing device body and the conveyance roller table installed on the rear surface of the shearing device body and the conveyance roller table installed on the rear surface are When shearing the material to be sheared, the conveyor roller table is not moved back, but only the shearing device body is moved, and the material to be sheared remaining on the lower cutter of the shearing device body is removed. Only when a part of the shearing device is to be dropped, the conveying roller table is moved in the conveying direction of the material to be sheared to form a space between the lower cutter of the shearing device main body and the front end of the conveying roller table. A tilting roller table is provided between the rear end of the transport roller table and the fixed transport roller on the rear surface to allow the residue on the side cutter to fall smoothly, and to shorten the distance between the rollers. In addition to measuring, this tilting roller table is rotatably supported at one end by a conveying roller table, and the other end is rotatable below the conveying horizontal plane of the material to be sheared, and the rotational operation of this tilting roller table is The movement of the material to be sheared and the movement of the transport roller table in the transport direction of the material to be sheared are simultaneously performed by the same drive source, so that a part of the material to be sheared, such as a rear end crop, is moved from above the lower cutter. It is an object of the present invention to provide a running type shearing device configured to operate reliably and smoothly when dropping and discharging.

In order to achieve the above object, the present invention has a main body of a running shearing device that shears a material to be sheared with an upper cutter that can be raised and lowered and a lower cutter that is fixed. A roller table for conveying the material to be sheared is provided on the rear surface so that the shearing device main body side thereof can rotate downward from the surface to which the material to be sheared is conveyed, and is also movable in the conveyance direction of the material to be sheared, A running type shearing device in which a tilting roller table is provided between the end of the conveyance roller table on the anti-shearing device main body side and a fixed conveyance roller table on the rear surface of the conveyance roller table so as to be able to escape downward from the conveyance surface of the material to be sheared. In the device, the tilting roller table has one end rotatably supported on an end of the conveyance roller table on the anti-shearing device main body side, and the other end, which is the fixed conveyance roller table side, rotates around the bearing point. The rotational driving member of the tilting roller table and the movement driving member of the conveying roller table in the transporting direction of the sheared material are connected to The end of the transport roller table opposite to the shearing device body is connected to the same drive source provided below, and the end of the transporting roller table on the shearing device main body side is separated from the shearing device main body without being connected. The transport roller table is configured to be able to move the material to be sheared in the transport direction independently of the main body of the shearing device.

The present invention will be described in detail below based on embodiments shown in the drawings.

The running type shearing device has a traveling type shearing device main body 1 on the right side in FIG. 1, and this shearing device main body 1
A depressing roller table 42 for receiving the slab 66 that has passed through the pinch rolls 71 of the continuous casting machine is provided on the front side of the casting machine.

On the other hand, a roller table 12 is provided on the rear surface of the shearing device main body 1 so as to be rotatable and movable in the slab transport direction.
A tilting table 35 is rotatably attached to the end of the shearing device 2 on the side closer to the shearing device main body 1, and a tilting table 22 is further rotatably attached to the end on the side farther from the shearing device main body 1. A fixed transport roller 2 is mounted on the rear surface of the tilting table 22.
6 is provided. The tilting table 35 is provided inside the shearing device main body 1, adjacent to the lower cutter 11.

Next, the configuration of the present invention will be explained in more detail.

FIG. 1 and the following illustrate one embodiment of the present invention, in which a running shearing device main body indicated by reference numeral 1 in the figure has two guide rails 2 laid at its base, sandwiching the shearing device main body 1. , 2 are rotatably mounted, and furthermore, a plurality of wheels 3 are rotatably mounted to run on the shearing device main body 1, and a rolling wheel is attached to the lower end of the shearing device main body 1 in contact with the lower side of two guide rails 4, 4. A plurality of movable guide wheels 5 are provided. Shearing device body 1
The weight of the vehicle is supported by the wheels 3. The lower part of the shearing device main body 1 is connected to the tip of a piston rod 6a of a trunnion type cylinder 6, and by operating the cylinder 6, the shearing device main body 1 is adjusted to match the traveling speed of the material to be sheared 66 such as a slab. It can be made to run in the running direction of the slab 66. Note that arrow A in Figure 1 indicates slab 6.
6 shows the running direction. Of course, it also performs an operation to return it to its original position. A ram 7 is provided at the upper end of the running shearing device main body 1, and below the ram 7, an upper tool rest 8 that is lowered by the ram 7 is provided integrally with the ram 7. Further, the upper tool rest 8 is provided with an upper cutter 9 and a slab holder 10. Further, as shown in FIG. 2, a pullback cylinder 72 is attached to the upper part of the shearing device main body 1, sandwiching the ram 7, and the tip of the piston rod is connected to the upper tool rest 8. Note that hydraulic oil is supplied to the ram 7 through a supply port 67 from a hydraulic supply source (not shown).

Further, below the traveling line of the slab 66 of the shearing device main body 1, a lower cutter 11 that performs a shearing action in cooperation with the upper cutter 9 is attached to a lower tool rest 68. The lower tool rest 68 is fixed to the shearing device main body 1. Further, the cylinder indicated by the reference numeral 73 attached to the lower part of the lower tool rest 68 is a replacement cylinder for this lower tool rest 68.

A conveying roller table 12, also called a shear rear surface depressing table, is disposed on the rear surface of the running shearing device main body 1, that is, on the downstream side in the conveying direction of the material to be sheared 66 such as a slab. A plurality of rollers 13, 13a rotated by an omitted motor are attached to the frame 12a. The roller table 12 has wheels 15 rotatably supported on a shaft 14 attached to the end of the frame 12a opposite to the shearing device main body 1, and the wheels 15 are provided on a support base 16. The rail 17 is engaged with the rail 17.
7 can be rolled on.

One end of a link lever 18 is rotatably supported on the shaft 14, and the upper end of a rotary lever 19 is rotatably supported on the other end of the link lever 18. The center portion of the rotating lever 19 is fitted and fixed to a shaft 20, and the lower end of the rotating lever 19 is rotatably connected to a rod 21a of a trunnion type cylinder 21. The shaft 20 is rotatably supported by a bearing 69a attached to a bearing stand 69.

A tilting table 22 is rotatably supported by a shaft 24 via a bracket 23 at the end of the roller table 12 opposite to the shearing device main body 1. One feed roller 25 is rotatably attached to the tilting table 22. axis 2
4 is rotatably attached to the frame 12a of the roller table 12 via a bearing (not shown). A gear 24a is attached to the shaft 24, and an output shaft of a motor with a reduction gear (not shown) is connected to the shaft 24. on the other hand,
A gear 25a is attached to the shaft of the roller 25. The gear 25a and the gear 24a are connected by two intermediate gears 25b rotatably attached to the tilting table 22, and the roller 25 is configured to be rotated by the motor.

Fixed rollers 26 are arranged downstream of this roller 25 in the conveying direction.

On the other hand, one end of a rotating arm 27 is fixed to the shaft 20, and its tip and the tilting table 22 are connected by a turnbuckle 28 whose length can be adjusted.

For this reason, the trunnion type cylinder 21 rotates the tilting table 22 and the roller table 1.
This serves as a driving source that simultaneously moves the second sheared material in the conveying direction.

Then, the rotating arm 27 and the turnbuckle 28
is configured as a rotational drive member for the tilting table 22, and the link lever 18 and the rotation lever 19 constitute a movement drive member for moving the sheared material 66 of the conveyance roller table 12 in the conveyance direction. The drive source 21 is provided at a fixed portion below the downstream end of the roller table 12.

On the other hand, a trunnion type cylinder 29 is attached below the roller table 12, and the lower end of a pivot lever 30 formed in a dogleg shape is rotatably connected to the tip of the rod 29a via an intermediate lever 70. has been done. The rotating lever 30 is connected to a support base 32 via a shaft 31 attached to its bent portion.
It is rotatably supported on a shaft, and a wheel 33 is rotatably attached to its tip. This wheel 33 is the frame 12a of the transport roller table 12.
It engages with a guide plate 34 provided on the lower surface and at a position slightly closer to the shearing device main body 1 side. Therefore, the roller table 12 has both ends in the longitudinal direction, respectively.
Supports 16 and 3 via wheels 15 and 33
It is supported by 2. And cylinder 29
When the piston rod 29a is moved backward, the roller table 12 is rotated clockwise in FIG. 1 about the shaft 14. Further, when the piston rod 21a of the cylinder 21 is moved backward, the tilting table 22 is rotated counterclockwise in FIG.
is moved in the transport direction.

On the other hand, at the end of the roller table 12 on the shearing device main body 1 side, another tilting table 35 is completely separated from the shearing device main body 1 without being connected to it, and is rotatably supported via a shaft 13b. One roller 36 is rotatably supported on the tilting table 35. This roller 36 transfers the rotational force of the roller 13a of the roller table 12 closest to the shearing device main body 1 to the intermediate gear group 3.
Rotationally driven via 7.

A clevis-type cylinder 38 is attached to the lower part of the frame 12a of the roller table 12, and the tip of the rod 38a is rotatably connected to the lower end of the tilting table 36 via a shaft 39.

On the other hand, a shear front depressing table 40 is provided on the front side of the shearing device main body 1. As shown in FIG. 4 in detail, this depressing table 40 has one end rotatably supported by a pin 41 on a fixed part on the pinch roll 71 side of the continuous casting machine. A roller 42 is rotatably supported on the free end side of the table 40. Then, the depressing table 4 is placed at a position corresponding to this roller 42.
A shock absorber 43 is attached to the lower part of 0. In the illustrated example, the shock absorbing device 43 is illustrated as having a structure in which disc springs 43a are stacked, but a ring spring, a hydraulic cylinder, or the like may be used instead.

This structure was adopted to prevent damage to the lower cutter 11 and deformation of the slab 66 itself due to contact between the lower surface of the slab 66 and the upper surface of the lower cutter 11 when the slab 66 is not cut, that is, when the slab 66 is only transported. In order to prevent this and ensure smooth conveyance of the slab 66, the upper end of the roller 42 is positioned approximately 10 mm above the upper surface of the lower cutter 11, as shown in FIG. , upper cutter 9
This is to prevent the shearing force applied by the lowering of the slab presser or the pressing force by the slab presser 10 from being applied to the roller 42 closest to the lower cutter 11 and damaging this roller 42.

Note that the upper ends of the roller 36 of the tilting table 35 and the rollers 13, 13a of the roller table 12 are also at the same level as the upper end of the roller 42 when not cutting, and are slightly above the upper surface of the lower cutter 11. It is located in

A rear end crop extrusion device 44 is provided above the depressing table 40 and on the side of the shearing device main body 1.

The details of the rear end crop extrusion device 44 are as follows.
As shown in the figure, the shearing device has a sliding table 46 that is slidably fitted into a guide groove 45 formed on the side surface of the shearing device main body 1, and a bracket 47 provided on the sliding table 46 is connected to the shearing device. It is connected to the lower end of a rod 48a of a clevis-type cylinder 48 provided at the upper part of the main body 1, and the slide table 46 is raised and lowered by the cylinder 48.

A trunnion type cylinder 49 is provided at the upper end of the sliding table 46, and the tip of the rod 49a is rotatably connected to one end of a rotating lever 50 formed in a dogleg shape. The bent portion of the rotating lever 50 is connected to a bracket 52 attached to the sliding base 46.
is rotatably supported via a pin 51,
Similarly, the distal end of the rotating lever 50 is rotatably connected to the upper end of a push-out arm 53 formed in a dogleg shape via a pin 54.

Further, a clevis type cylinder 55 is attached to the lower end of the slide table 46, and the rod 55
The tip of a is rotatably connected to the bent portion of the push-out arm 53 via a pin 56. Extrusion arm 5
A wear-resistant material 57 is fixed to the tip portion of 3.
Note that the stroke of the cylinder 49 is the same as that of the cylinder 5.
The stroke is configured to be larger than the stroke of 5.

On the other hand, a pedestal 58 is provided on the frame 12a of the roller table 12 at a position closer to the shearing device main body 1, and a dummy bar cutting device 59 is provided on this pedestal 58.

Although not shown, the dummy bar connects the molten steel by pulling the leading edge of the molten steel when continuous casting is started through the mold, which is discharged from the tundish where the molten steel is stored. It consists of a series of chains that are passed between the rolls 71 and pulled out onto the conveying table, and the tips of the chains bite into the tips of the continuous casting slabs. If the connection between the tip of the slab and the dummy bar is not seized, the tip of the slab will fall downward under its own weight as soon as it is cut, but in most cases, the connection will be seized. in many cases, it does not fall due to its own weight. In this case, the separating device 59 separates the connection between the dummy bar and the tip of the slab, which is called the tip crop.

This device 59 has two upper and lower parallel links 60, 6.
1, each tip having a roller table 12
It is rotatably connected to the upper part of a rod 62 disposed perpendicularly to the rod. The rear end of the upper link 60 is rotatably connected to the lower end of the rod of a trunnion type cylinder 63, and by operating the cylinder 63, the links 60 and 61 are rotated to lower the rod 62, as described above. Then knock the tip crop off the tip of the dummy bar. The rod 62 is connected to the roller table 1 by links 60 and 61.
It can act perpendicularly to the slab 66 on 2.

By the way, a crop chute 64 is provided below the shearing device main body 1 at a position facing the upper cutter 9, the upper end of which faces the upper cutter 9, and the lower end used to convey the crop to another location. It faces above the crop cart 65 that is provided for the purpose.

Next, the operation of the running shear device configured as above will be explained.

Before the start of shearing, all the devices are in the state shown by solid lines in FIG.

That is, the center of the running shearing device main body 1 is at the position of the S1 line in FIG. Limited. The roller table 12 is located close to the shearing device 1 side and maintains a horizontal state, and the tilting table 22 on the rear end side and the tilting table 35 on the front end side are also in a horizontal state. is located near the lower cutter 11 inside the shearing device main body 1.

In this state, first, using a dummy bar, the tip of the slab 66, on which continuous casting is to be started, is guided to the shearing device at a predetermined traveling speed. When the shearing device main body 1 reaches the shearing position, the tip crop is first cut.

That is, when the tip crop reaches the shearing position, first, the cylinder 38 is actuated, the piston rod 38a is moved backward, the tilting table 35 is rotated from a horizontal state in the time direction in FIG. 1, and is lowered. The state shown in FIG. 1 or the state shown in FIG. 3 is assumed. As a result, the shearing device main body 1 can be moved in the conveyance direction of the slab 66, and the upper cutter 9 can be lowered to start shearing the slab 66.

In parallel with the start of the downward rotation of the tilting table 35, the running cylinder 6 of the shearing device main body 1 and the driving ram 7 for the upper cutter 9 are operated to start shearing the end crop of the slab 66 during running. That is, the traveling cylinder 6 is operated in synchronization with the traveling speed of the slab 66 to move the shearing device main body 1 in the traveling direction of the slab 66. The running speed of the shearing device main body 1 is controlled by, for example, detecting the rotation speed of the pinch roll 71 of the continuous casting machine with a pulse counter (not shown), and controlling the operating speed of the running cylinder 6 based on this detection signal. It is done. Furthermore, when hydraulic oil is supplied to the ram 7 from the hydraulic oil supply port 67, the ram 7 descends. Therefore, the upper cutter 9 moves down toward the slab 66 together with the upper tool rest 8 . Note that before the upper cutter 9 descends and reaches the upper surface of the slab 66, a cylinder (not shown) for the slab holder 10 is activated to press the slab holder 1.
0 is brought into contact with the upper surface of the slab 66, and then the slab 6
6 is pressed and held between it and the lower tool rest 68. At this time, due to the pressing force of the slab presser 10, the roller 42 of the depressing table 40 is rotated downward about the pin 41, and descends against the repulsive force of the disc spring 43a, so that the upper end surface of the roller 42 is at the same level as the upper surface of the lower cutter 11. Then, the upper cutter 9 reaches the upper surface of the slab 66 and descends, and begins shearing the slab 66 with the lower cutter 11 on the fixed side. Simultaneously with the start of this shearing, the cylinder 29 is actuated to move the piston rod 29a into the cylinder 29.
retreat to the side. Then, the rotating lever 30 is rotated clockwise in FIG.
The roller 33 attached to the tip of the shearing device 1 is lowered, and the roller table 12 rotates about the shaft 14 with the shearing device main body 1 side rotating downward from the horizontal position.
Note that this rotation of the roller table 12 is performed in synchronization with the lowering speed of the upper cutter 9.

In this way, the tip crop is placed on the roller table 1.
While being placed and supported on the rollers 13a and 13 of No. 2, the cutter is cut while being sent rearward and descending together with the roller table 12 in synchronization with the descending movement of the upper cutter 9. FIG. 3 shows the tip crop being cut or then continuously.
The state of the position of each device at the time when the cutting of the slab to a predetermined length is completed is shown. In addition,
The S1 line shown in FIG. 3 is the center position of the shearing device main body 1 at the start of shearing, the S2 line is the center position of the shearing device main body 1 at the end of shearing, and S is the travel stroke of the shearing device main body 1.

In this way, the crop at the tip is cut, and at the same time as the crop is cut, the crop should separate from the dummy bar and fall downward under its own weight. This prevents the crop from falling downward at the same time as it is cut. In this case, the tummy bar separating device 59 is activated to forcibly separate the tip crop from the dummy bar. That is, when the connection part of the cut end crop with the dummy bar approaches the lower part of the rod 62 of the dummy bar cutting device 59, the cylinder 6
3 to rotate the links 60 and 61,
The rod 62 is lowered to knock off the cut tip crop and disconnect the connection with the dummy bar. The cut-off tip crop passes between the rollers 13 and 13a of the roller table 12 and falls downward, onto the chute 64 which has moved below the cutting device 59 as shown by the two-dot chain line in FIG. It falls, slides on this and falls onto the crop cart 65. When the tip crop is cut in this way, the dummy bar cutting device 59
The rod 62 rises again and enters a standby state.

As soon as the tip crop has been cut, the cylinder 6 is actuated and the shearing device body 1 returns to its original position S1.
At the same time, the pullback cylinder 72 is activated, and the upper cutter 9 is moved to the upper tool rest 8 and the slab holder 10.
The tilting table 35 is also pulled up together with the ram 7, and the tilting table 35 is also returned to a horizontal state by the cylinder 38. Roller 4 of daypressing table 40
2 also returns to its original height due to the repulsive force of the disc spring 43a. Also, the cylinder 29 allows the rotary lever 3 to
0 is rotated counterclockwise in FIG. 1, and the roller table 12 returns to the horizontal state. In this way, each device returns to its state before shearing started.

Even after the tip crop is cut in this way, the continuous casting slab continues to be transported at a predetermined running speed by the conveying rollers 42, 36, 13a,
13. Then, the continuous cast slab travels a predetermined length in the space between the upper cutter 9 and the lower cutter 11, and when it comes time to shear the continuous cast slab 66 to a predetermined length, shearing start detection means (not shown) As a result, the tilting table 35 is lowered, the ram 7 is lowered, the slab presser 10 is lowered, the traveling cylinder 6 is operated, and the roller table 12 is rotated, in exactly the same manner as in the case of cutting the end crop. is started according to the operation timing set in advance in the sequence. That is, the slab 66 from which the tip crop has been cut and removed is transferred to the roller 13 of the roller table 12.
a, 13, and is cut to a predetermined length while being fed backward in a supported state and descending together with the roller table 12 in synchronization with the descending movement of the upper cutter 9. Therefore, smooth cutting can be performed without deforming the slab 66, which is in a softened state at high temperatures. The state after cutting is as shown in FIG. Then, after cutting,
The shearing device main body 1, roller table 12, tilting table 35, and other devices are operated immediately in the same manner as described above after cutting the crop tip.
The operation to return to the original position of the state shown in FIG. 1 is started. As described above, when the upper cutter 9 reaches the lower limit and the cutting is completed, the slab 66
The tip of the slab 66 in the advancing direction is on the roller table 12, that is, the slab 66 cut to a predetermined length is placed on the roller table 12.
is on the roller table 12, and when the roller table 12 returns to its original horizontal position, its tip passes over the rearmost roller 13 of the roller table 12, and then passes over the tilting table 22 on the rear surface. The slab 66 cut to a predetermined length is conveyed as it moves onto the rollers 25 and fixed rollers 26.

The slab 66 is being transported even when the cutting is finished and each device returns to its original standby position, and even after each device returns to its original position, the slab 66 continues to be transported.
6 is conveyed on each roller. In this case, the roller 36 of the tilting table 35 adjacent to the lower cutter 11 inside the shearing device main body 1 causes the roller 42 of the depressing table 40 in front of the shear to
As a result, the distance between the slab 66 and the slab 66 is shortened, and the slab 66 is transported while preventing deformation of the slab 66, which is in a softened state at a high temperature.

In this manner, when the slab 66 reaches the next cutting position, the equipment is activated in the same manner as described above to begin cutting. Thereafter, the same operation is repeated to cut the slab 66 to a predetermined length in one cycle of the continuous casting machine.

As explained above, when one cycle of cutting of the continuous cast slab 66 is completed, the so-called rear end crop having a predetermined length at the end of the continuous cast slab in this one cycle is cut on the lower side of the shearing device main body 1. It is located on the upper surface of the cutter 11, and since a conveyance roller cannot be installed in this portion, it remains there. Therefore, after each device returns to its original standby position, the cylinder 21 is actuated to move the piston rod 21a backward, and the rotating lever 19 and rotating arm 27 are rotated counterclockwise in FIG. . For this reason, the rear tilting table 22
is retreated downward about the shaft 24 via the turnback 28 to form a space between the fixed roller 26 and the rear end of the roller table 12, while at the same time, the roller table 12
is horizontally moved via the link arm 18 in a direction away from the shearing device main body 1, that is, into the space on the fixed roller 26 side.

That is, the roller table 12 is supported by the rail 17 via the wheels 15 on the anti-shearing device main body 1 side, while the shearing device main body 1 side is supported by the wheel 33 at the tip of the rotary lever 30. The rolling of the wheels 15 and 30 allows for smooth horizontal movement.

In parallel with this operation, the cylinder 38 of the tilting table 35 on the side of the shearing device main body 1 is operated to move the piston rod 38a backward, and the tilting table 35 is lowered.

By the above operation, a space is formed between the lower cutter 11 of the shearing device main body 1 and the end of the roller table 12 on the shearing device main body 1 side. The retreating crop causes the crop to fall downward from this space. That is, when the above operations are completed, the rear end crop extrusion device 44 is activated. That is, by operating the lifting cylinder 48 and lowering the sliding table 46, the pushing arm 53 is stopped at a predetermined height. The reason why the crop extrusion device 44 is raised and lowered by the cylinder 48 is that a heat insulating cover (not shown) for the slab 66 is provided below the extrusion arm 53. This is to allow the arm 53 to escape above the heat insulating cover when no work is being done. 1 and 5, the cylinder 48 is actuated,
This shows the state when the push-out arm 53 is lowered to a predetermined height. Then, the cylinders 49 and 55 are operated so that the cylinder 49 moves its piston rod 49a backward, and the cylinder 55
Move the piston rod 55a forward slightly. By retracting this piston rod 49a, the push-out arm 53 is lowered,
The rear end of the rear end crop remaining on the lower cutter 11 is approached. On the other hand, by slightly advancing the piston rod 55a, the shearing device main body 1 such as the slab presser 10 at the tip end 57 of the extrusion arm 53 is
This tip 57 is adjusted to approach the rear end of the rear crop while preventing contact with the rear crop. The piston rod 49a is further retreated to bring the tip 57 of the push-out arm 53 into contact with the rear end of the rear end crop, thereby pushing the rear end crop forward. The position of the push-out arm 53 at this time is as shown by the two-dot chain line in FIG. As mentioned above, the pushed-out rear end crop is attached to the lower cutter 11 and the roller table 12.
It falls downward from the space formed between the end of the shearing device main body 1 side, and is collected onto the crop cart 65 via the chute 64. Note that it is also possible to collect a slab cut to an appropriate length as a sample material in the same manner as the collection of the trailing end crop.

At the same time as this rear end crop extrusion operation is completed, the roller table 12, the rear tilting table 22, the tilting table 35 on the shearing device main body 1 side, and the rear end crop extrusion device 44 perform operations opposite to those described above. and return to the original standby position.

As described above, the operations of cutting the front end crop, cutting the slab to a predetermined length, and extruding and removing the rear end crop in one cycle of the continuous casting slab 66 are completed. The continuous casting slab of the cycle is being cut.

As is clear from the above description, since the present invention has the configuration as described in the claims, the material to be sheared, such as a slab, is transported on the transport roller table and simultaneously with the lowering movement of the upper cutter. Since it descends together with the roller table in synchronization, it is possible to perform reliable shearing while traveling, and it is also possible to cut and convey slabs that are easily deformed at high temperatures without deforming them. Since it is possible to separate it away from the main body of the shearing device, and a complete space can be formed between the front end of the conveying roller table and the main body of the shearing device, it is possible to remove the material remaining on the lower blade of the main body of the shearing device. To reliably and easily collect a part of a relatively short material to be sheared, such as a rear end crop or a sample material, which cannot be transported by a conveyance roller, by dropping it from the space on the shearing device main body side. Can be done.

Furthermore, since the rotation operation of the tilting roller table and the movement operation of the conveyance roller table can be performed simultaneously using the same drive source, the drive mechanisms for these can not only be configured simply, but also their operations can be performed reliably and smoothly. The operation of forming a space for dropping a part of the material to be sheared remaining in the shearing device body as described above can be performed extremely smoothly without any impact force or the like acting on the equipment. . Further, in this case, the tilting roller table is rotatably supported at one end by the end of the conveyance roller table and rotated at the other end, so that the rotation operation can be performed extremely smoothly.

Furthermore, the shearing device itself can be moved independently relative to the transport roller table, so when performing normal shearing work, the heavy transport roller table does not need to be moved in the direction of transport of the material to be sheared. Since there is no shearing during running, it is possible to perform shearing smoothly during running. In addition, during normal shearing, the tilting roller table is located between the rear end of the conveying roller table and the fixed roller downstream thereof, on the horizontal surface of conveying the material to be sheared. As the distance between the sheared parts and the sheared parts is shortened, deformation of the material to be sheared, such as a slab, which is easily deformed at high temperatures, can be prevented, and a high-quality sheared product can be obtained.

[Brief explanation of the drawing]

The drawings are for explaining one embodiment of the present invention, and FIG. 1 is a front view (partially longitudinal sectional view) of the entire running shearing device, and FIG. Left side view (1 part sectional view), Figure 3 is a front view showing the operating state of the famous equipment when slab cutting is completed, Figure 4 is a detailed enlarged front view of the shear front depressing table, Figure 5 FIG. 2 is a detailed enlarged front view of the rear end crop extrusion device. 1... Shearing device main body, 6, 21, 29, 38...
...Cylinder, 7...Ram, 9...Upper cutter, 11
...Lower cutter, 12...Roller table, 13,
13a, 25, 26, 42...Roller, 22, 3
5... Tilting table, 40... Shear front depressing table, 44... Rear end crop extrusion device, 59... Dummy bar cutting device.

Claims (1)

[Claims] 1 It has a running type shearing device main body that shears the material to be sheared with an upper cutter that can be raised and lowered and a fixed lower cutter, and a roller table for transporting the material to be sheared is attached to the rear surface of this running type shearing device main body. The shearing device main body side is provided so that it can rotate downward from the conveying surface of the material to be sheared, and is also movable in the conveying direction of the sheared material, and an end of the conveying roller table on the side opposite to the shearing device main body side. and a fixed conveying roller table on the rear surface of the conveying roller table, in which a tilting roller table is provided so as to be able to escape downward from the conveying surface of the material to be sheared, the tilting roller table is connected to the conveying roller table. One end is rotatably supported on the end of the anti-shearing device main body side, and the other end, which is the side of the fixed conveyance roller table, is rotated downward from the horizontal plane of conveyance of the material to be sheared about the bearing point. The rotary drive member of the tilting roller table and the movement drive member of the transport roller table in the transport direction of the material to be sheared are arranged under the end of the transport roller table on the side opposite to the shearing device main body. The conveying roller table is connected to the same driving source provided in the shearing device body, and the end of the conveying roller table on the shearing device body side is not connected to the shearing device body but is separated from the shearing device body, and the conveying roller table is connected to the shearing device body side. What is claimed is: 1. A running type shearing device, characterized in that it is configured to be able to independently move a material to be sheared in a conveyance direction.