JP2000176510A - Device for conveying material to be reduced and conveying method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the restriction of an installation place, to shorten carrying-in and carrying-out times, to prevent the drop of material temperature, to contract the rolling line and to reduce the cost of equipment by using inlet-side and outlet-side rolling roller tables and ascendable and descendable roller tables for exclusive use of a press on the upstream and downstream sides of a horizontal forging press. SOLUTION: The roller table 33 for exclusive use of the press on which a material 21 to be reduced, carried in from the conveying pass line L, whose rear end part is sticked out is placed is lifted by the height H from the top face of the inlet-side rolling rollertable 31. The material 21 to be reduced is conveyed while reducing side faces with the horizontal forging press 23 and stopped in a state where the reduction is completed and its tip part is sticked out of the roller table 33 for exclusive use of the press. The exclusive roller table 33 is lowered to the height of the conveying pass line L, the material 21 to be reduced is carried out to the outlet-side rolling roller table 32 and simultaneously a material 21' to be reduced is carried in. In this way, the entire length of the roller table 33 for exclusive use of the press, is shortened and, by decreasing residence time for reduction in a high temperature state by shortening, the temperature drop of the material 21 to be reduced is prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device and a method for transferring a rolled material which is arranged upstream of a rolling line and conveys a bloom or the like which is lowered by a horizontal forging press.

[0002] In a bloom or ingot for producing a wire rod or a steel bar, bubbles, voids, etc. are generated in the vicinity of a central portion in the process of casting the material. In order to crush these harmful internal defects by rolling and to correct the metallographic structure and obtain high quality rolling material,
It has been proposed to install a horizontal forging press upstream of the rolling line. For example, a "forging press device" (Japanese Patent Laid-Open No. 63-224832) is disclosed.

An example of such a forging press is shown in the schematic diagram of FIG. In FIG. 3, a horizontal forging press device 1 arranged on the upstream side of a rolling line P includes a horizontal forging press 2.
And a rolling line P for a side surface of a high-temperature bloom (reduced material) 3 manufactured and conveyed by a continuous casting facility (not shown).
And a pair of dies 4 which are arranged opposite to each other in the orthogonal direction and which approach and separate in the horizontal direction to reduce the pressure, and a built-in fluid pressure cylinder (not shown) so that the dies 4 can be moved with respect to the side surface of the bloom 3. And a pair of press bodies 5 to be held. Further, in the horizontal forging press 2, the two press bodies 5 holding the mold 4 are separated from each other by a predetermined interval between the four press bodies 5 with the conveyance path line L of the rolled material 3 forming a part of the rolling line P interposed therebetween. 5, and is fastened by a column 6 screwed with a column nut (not shown) to form a strong integrated structure.

[0004] Further, a conveying path line L for the draft material 3 is provided with a plurality of forward / reversely rotatable stages for rolling down and transporting the side surface with the draft material 3 placed near the die 4 of the horizontal forging press 2. A roller table 12 for exclusive use of press formed of a roll with attachments (two in this figure) 8 and a plurality of rolls 9 and fixed to a floor 10 with a support member 11 is arranged. In addition, before and after the press-dedicated roller table 12, an entrance-side rolling line roller table 13 including a plurality of rolls 9 that can be rotated forward and reverse to carry the press-down material 3 into the press-dedicated roller table 12, and the press-dedicated roller table 12. And an output-side rolling line roller table 14 composed of a plurality of rolls 9 capable of normal and reverse rotations from which the reduced material 3 is carried out.
0 in a state where it is fixed by the support member 11.

[0005] As described above, the horizontal forging press apparatus 1 has the horizontal forging press 2 as the center and the conveying path line L for the rolled material. Therefore, the side surface of the pressing member 3 carried and placed on the press-dedicated roller table 12 with bubbles and voids near the center is reduced by a predetermined amount by the mold 4 of the horizontal forging press 2 to remove bubbles and the like. Internal defects can be easily and quickly crushed to correct a good metallographic structure. The other side (up and down in the figure) is also rotated by a rolling member rotating device (not shown), then reversely fed by the stepped rolls 8 and 9 and re-transmitted to the mold 4 and lowered to similarly correct bubbles and the like. Later, it is carried out to the downstream side again, and a high-quality bar or bar is manufactured by a rolling device (not shown) or the like.

[0006]

However, during the forging of the horizontal forging press 2, the height of the stepped rolls 8 and the rolls 9 of the conveying path line L is maintained even during the forging of the horizontal forging press 2. , And were fixed at the same height as the rolls 9 of the entry / exit-side rolling line roller tables 13 and 14. Therefore, the press roller table 12
Is the entire length of the range in which the draft material 3 moves during forging,
That is, a length approximately twice as long as the entire length of the draft member 3 was required. Therefore, a long installation place is required, and there is a problem that installation is not possible if there is only a short place due to restrictions on the installation place. In addition, there is a problem that equipment costs increase because the rolling line becomes long. Furthermore, since the press-dedicated roller table 12 becomes longer and a new rolling material to be lowered next cannot be waited for in the immediate vicinity of the mold, it takes time to carry in and out, so that productivity is reduced and the temperature of the rolling material is lowered. There was also.

The present invention has been made to solve such a problem. That is, the object of the present invention is:
(1) The overall length of the roller table dedicated to the press was shortened, thereby reducing the restrictions on the installation location. (2) Further, the new reduced material to be reduced next was transported to the immediate vicinity of the forging press and unloaded.
An object of the present invention is to provide a device and a method for transferring a rolled material, which can shorten the entry time, prevent the temperature of the rolled material from lowering, and (3) shorten the rolling line and reduce the equipment cost.

[0008]

According to the present invention, there is provided a horizontal forging press, which is disposed in a horizontal direction perpendicular to a side surface of a drafting member and holds a die to be pressed down close to and away from the die, and a horizontal forging press. Even if the center of gravity of the drafting material is located between the incoming and outgoing side rolling line roller tables and the incoming and outgoing side rolling line roller tables arranged on the upstream and downstream sides and the front and rear ends protrude during forging There is provided an apparatus for conveying a pressing material, comprising: a roller table for exclusive use of a press, which has a predetermined length and does not come into contact with an inlet / outlet-side rolling line roller table and has an integral or divided structure and which can be raised and lowered.

Further, according to the present invention, a die which is disposed to face the side surface of the drafting material in a horizontal direction at right angles to the drafting material and moves downwardly is placed close to the side surface of the drafting material.
A horizontal forging press that can be detached and held, an input / output side rolling line roller table placed on the upstream and downstream sides of the horizontal forging press, and a center of gravity of the rolled-down material placed inside the input / output side rolling line roller table And a roller table for exclusive use of an ascending / descending press having an integral or divided structure having a predetermined length that does not come into contact with the input / output side rolling line roller table during forging even if the front and rear ends protrude. The roller table dedicated to the press loaded with the reduced material loaded from the transfer path line and located with the center of gravity inside and the rear end protruding is raised to a height where the upper part of the entry side rolling line roller table and the reduced material do not contact. Then, the reduced material is conveyed while the side surface is reduced by the horizontal forging press, and then the reduction is completed. The rolled material protruding from the roll table was stopped at a position where it did not contact the upper part of the delivery-side rolling line roller table, and then the press-only roller table was lowered to the same transport path line height with the rolled material placed. A method of transporting the rolled material is provided, in which the rolled material is subsequently carried out to the exit-side rolling line roller table, and the new rolled material waiting at the same time is sequentially transported into the press-only roller table.

According to the above-described apparatus and method of the present invention,
An integrated body having a predetermined length that is arranged between the outgoing side rolling line roller tables and that does not come into contact with the incoming and outgoing side rolling line roller tables during forging in the raised state even if the center of gravity of the drafting material is located inside and the front and rear ends protrude. Or a press-only roller table having a divided structure. With this configuration, it is possible to raise the conveying path line by a predetermined height above the roller table dedicated to press and the rolling line roller table on the incoming / outgoing side while the rolling material is placed by the elevating device described below. In addition, since the center of gravity of the rolled material is located inside the roller table dedicated to press, even if the front and rear ends of the rolled material protrude, it is possible to avoid contact with the upper part of the input / output side rolling line roller table, and Can be stably raised to a predetermined height without sliding down. Therefore, the entire length of the roller table dedicated to press need only be slightly longer than the range in which the center of gravity of the rolled material moves during forging. Therefore, the total length of the press-dedicated roller table can be reduced as compared with the related art. Equipment costs can also be reduced. Furthermore, since the restrictions on the installation place can be reduced by shortening, the construction work can be easily carried out also for new construction and remodeling of the existing rolling line, and the construction period can be shortened. Furthermore, by shortening the roller table dedicated to press,
It is possible to prevent the temperature of the rolled material from lowering during transportation.

According to a preferred embodiment of the present invention, the press-dedicated roller table having the divided structure includes an inlet / outgoing-side press-dedicated roller table and a center press-dedicated roller table disposed therebetween, and is individually raised and lowered. It is possible.

Further, according to the present invention, there is provided a press-dedicated roller table which has a divided structure including an entrance / exit-side press-dedicated roller table and a center press-dedicated roller table disposed therebetween and which can be individually raised and lowered. The rear end portion of the rolled material, which has been lifted and lowered and placed on a three-part roller table having the same height, and has finished rolling down, is carried out from the center press-dedicated roller table, and then the entrance-side press-dedicated roller table is replaced with the next new one. Lower to the same height as the transport pass line of the entry side rolling line roller table where the rolling material waits,
Next, the new rolled material is loaded into the roller table dedicated to the incoming press, raised to the same height as the roller table dedicated to the center press, transported to the immediate vicinity of the mold, and put on standby. Is transported to a position where it does not contact the upper part of the exit-side rolling line roller table, stops the rolled material that remains inside the exit-side press roller table and protrudes at the tip, and then lowers the exit-side press-exclusive roller table to the same position. The rolled material is carried out to the exit-side rolling line roller table, which has been set as a conveying path line at the height,
At the same time, a new drafting material is transported between the molds to reduce the side surface, and during the reduction of the new drafting material, the exit-side press-dedicated roller table is at the same height as the transfer path line of the entry-side / center press-dedicated roller table. , And a method of transporting the drafting material.

According to the apparatus and the method of the present invention in the preferred embodiment, the roller table dedicated to press having the divided structure is composed of a roller table dedicated to the entrance side press, a roller table dedicated to the center press, and a roller table dedicated to the exit side press. And can be individually raised and lowered. In this way, the press-dedicated roller table is divided into three parts and a structure that can be individually raised and lowered is implemented, so that the press-dedicated roller table can be shortened and a detailed combination of the elevating process can be performed. It is possible to shorten the unloading and loading time. Thereby, the productivity of the rolling material can be improved. In addition, since a new drafting material can be carried in close proximity to the mold, a reduction in temperature can be prevented, a favorable quality rolling material can be manufactured, and energy can be saved.

Further, according to another preferred embodiment, the input / output rolling line roller table has a center of gravity located inside the press-dedicated roller table and within a range where the front and rear ends of the protruding rolling material do not contact. Incline or descend. With this configuration, contrary to the above, a press-only roller table with a length short enough to protrude the front and rear ends of the roll-down material with the center of gravity positioned inside the press-only roller table and the roll-down material placed is adopted. Even so, the entry / exit-side rolling line roller table is inclined or lowered to a predetermined height by using a tilting or elevating device, so that contact with the rolling material can be avoided and the rolling material can be prevented from sliding down.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings. In the drawings, common members are denoted by the same reference numerals, and redundant description is omitted.

FIG. 1 shows a first embodiment of the rolled material conveying apparatus of the present invention.
1 is an overall configuration diagram showing an embodiment. As shown in this figure, a rolled material transfer device 20 of the present invention is arranged at an upstream side of a rolling line P, is manufactured by a continuous casting facility or the like (not shown) or the like, and is transferred in a high-temperature bloom (rolled material) 21.
The horizontal forging press 23 is disposed at the center of a pair of dies 22 that are arranged in a horizontal direction at right angles to the side surfaces of the dies and move in the horizontal direction and press down.

The horizontal forging press 23 has a built-in fluid pressure cylinder and a pair of press bodies 24 movably holding a mold 22 which presses down against the side surface of the bloom 21, and holds the mold 22. The two press bodies 24 are screwed with a column nut (not shown) through the two press bodies 24 with a predetermined interval therebetween and passing through the inside of both press bodies 24 with a conveying path line L of the rolled material 21 forming a part of the rolling line P interposed therebetween. Book Column 25
To form a strong integral structure.

Further, as shown in FIG. 1, the rolled material conveying device 20 is provided on the upstream and downstream sides of the rolling line P of the horizontal forging press 23, and is fixed to the floor 10 by the support material 30, and the rolled material 21 is fixed to the floor surface 10. Incoming / outgoing side rolling line roller tables 31 and 32 comprising a plurality of rolls 9 to be mounted and conveyed to rotate freely in forward / reverse rotation, and in / out side rolling line roller table 3
A positive / lower side which is disposed between the first and second 32 and has a one-piece structure and has a pressing member 21 placed in the vicinity of a mold 22 and has a side surface pressed down and conveyed.
A press-only roller table 33 having a predetermined length R1 formed by a plurality of stepped rolls (two in this drawing) 8 and a plurality of rolls 9 which are rotatable in the reverse direction is arranged. The transfer path line L is formed by the input / output side rolling line roller tables 31 and 32 and the press-dedicated roller table 33.

Further, in FIG. 1, the press-only roller table 33 is transported by the lifting / lowering device 34 (for example, a worm jack or a hydraulic cylinder) mounted on the floor 10 to the input / output side rolling line roller tables 31, 32. The transfer path line L extends over a predetermined height H with respect to the path line L.
Can be moved up and down with the pressing member 21 placed thereon.

Further, an entrance portion which forms a half of the entire length R1 which is a predetermined length of the press roller table 33 is:
The drafting material 21 is placed on the lifting device 34, and the transfer path line L
Is raised to a predetermined height H, the center of gravity G1 of the reduction material 21 (indicated by a thick solid line) conveyed from the entry-side rolling line roller table 31 is positioned inside the press-dedicated roller table 33, and 21 does not come into contact with the upper part of the entry-side rolling line roller table 31 even if the rear end portion protrudes from the entry-side rolling line roller table 31 or bends during forging with the mold 22, that is, the center of gravity G1 is If it is placed in the inside, even if a part of the draft material 21 overhangs on the incoming rolling line roller table 31 side, it is long enough not to slide down to the incoming rolling line roller table 31 side. Similarly, the length of the exit side portion forming the other half of the full length R1 is also reduced and the mold 22
Material (shown by a dotted line) carried out of the conveyor is sequentially conveyed to the downstream side (the center of gravity being conveyed is set to G2), and the conveyance of the material 21 is stopped in order to carry it out to the exit-side rolling line roller table 32 side. When a part of the reduction material 21 (indicated by a thick dashed line) overhangs on the exit-side rolling line roller table 32 side, the gravity center in this case is G3.
If the roller remains inside the press-dedicated roller table 33 in the ascending state, the length of the pressing member 21 is long enough not to contact the upper part of the delivery-side rolling line roller table 32.

The total length R1 of the press-only roller table 33
With this method, the roller path dedicated to the press can be raised by a height H above the entrance / exit-side rolling line roller table in a state where the rolling material is placed. In addition, since the center of gravity of the rolled material is located inside the roller table dedicated to press, even if the front and rear ends of the rolled material protrude, it is possible to avoid contact with the upper part of the input / output side rolling line roller table, and Can be stably raised to a predetermined height H without sliding down. Therefore, the entire length of the roller table dedicated to press need only be slightly longer than the range in which the center of gravity of the rolled material moves during forging. Therefore, the total length of the roller table dedicated to press can be reduced as compared with the related art, and the equipment cost can be reduced. Furthermore, since the restrictions on the installation place can be reduced by shortening, the construction work can be easily carried out also for new construction and remodeling of the existing rolling line, and the construction period can be shortened. Further, by reducing the length of the press-dedicated roller table, it is possible to prevent the temperature of the rolled material from lowering during transport.

Next, the method of transporting the rolled material according to the present invention will be described with reference to FIG. A horizontal horizontal forging press 23 for movably holding a pair of dies 22 for pressing down and down on the side surfaces of the pressing member 21, and a press-only roller table 33 disposed near the horizontal forging press 23 and capable of moving up and down. And a transfer device 20 for the rolled-down material 21, which includes input / output side rolling line roller tables 31 and 32 disposed with a press-dedicated roller table 33 interposed therebetween. (1) From the transfer path line L having the same height The roller table 33 dedicated to the press, on which the rolled material 21 having the center of gravity G1 located therein and protruding from the rear end thereof is placed, is moved to a height H at which the upper part of the entry-side rolling line roller table 31 does not contact the rolled material 21. Raise,
(2) Next, the reduced material 21 is conveyed while the side surface is reduced by the horizontal forging press 23, and (3) Next, the reduction is completed, the material is discharged from the mold 22, the center of gravity G3 remains inside, and the tip is dedicated to the press. The pressing material 21 protruding from the roller table 33 is stopped at a position where the pressing material 21 does not come into contact with the upper part of the exit-side rolling line roller table 32. (4) Next, with the pressing material 21 placed, Transfer path line L
After being lowered to the height, the draft material 21 is carried out to the delivery-side rolling line roller table 32, and (5) simultaneously, a new draft material 21 ′ waiting is sequentially conveyed into the press-dedicated roller table 33. Therefore, it is only necessary to make the overall length of the press-only roller table slightly longer than the range in which the center of gravity of the rolled material moves during forging. As a result, the entire length of the roller table dedicated to press can be shortened as compared with the related art, and the shortening reduces the residence time of the rolled material in a high temperature state, thereby preventing the temperature of the rolled material from decreasing during transport.

FIG. 2 shows a second embodiment of the rolled material conveying apparatus of the present invention.
1 is an overall configuration diagram showing an embodiment. In the present embodiment, FIG.
Roller table 33 with integrated structure
It has a divided structure consisting of two pieces. As shown in FIG. 2, the press-only roller table 40 of the present invention has an overall length R
Roller table 41 for exclusive use of the incoming press with 2
It comprises a roller table for exclusive use of the delivery side R3 having R3, and a roller table for exclusive use of center press 43 having a total length of R4 disposed therebetween. Further, these press-dedicated roller tables are individually transported by the lifting / lowering devices 45 to 47 (for example, worm jacks or hydraulic cylinders) attached to the floor 10 to the transfer path lines of the input / output side rolling line roller tables 31 and 32. With respect to L, the transport path line L can be moved up and down over a predetermined height H in a state where the pressing material 21 is placed.

With this structure, the press-dedicated roller table can be raised and lowered individually in a three-part system, so that the press-dedicated roller table can be shortened and a detailed combination of the lifting and lowering steps can be performed to reduce the pressure on the transport path line. The time for unloading and loading the material can be reduced. In addition, because new drafting material can be brought in close to the mold,
A reduction in temperature can be prevented to produce a good quality rolling material, and energy saving can be achieved.

Next, a method of conveying a rolled material according to the present invention will be described with reference to FIG. It is composed of roller tables 41 and 42 dedicated to the input and output presses each having a total length R2 to R4 and capable of being individually raised and lowered by the lifting devices 45 to 47, and a roller table 43 dedicated to the center press sandwiched therebetween. Equipped with a press-only roller table 40 having a divided structure,
(1) Three-part roller table 4 that is raised and lowered to the same height
After the rear end portion of the pressing member 21 placed on 1 to 43 and the pressing is completed, the rear end of the pressing member 21 is carried out from the roller table 43 for exclusive use of the center press. It is lowered to the same height as the transport path line L of the standby entry-side rolling line roller table 31. (2) Next, a new pressing material 21 'is carried into the entry-side press-dedicated roller table 41, and the center press-dedicated roller table is loaded. 43, and is conveyed in the immediate vicinity of the mold 22 and made to stand by. (3) Next, it is carried out of the center press roller table 43, and the center of gravity G3 remains inside the exit side press roller table 42 and the tip The rolled-down material 21 whose part has protruded is conveyed to a position where it does not come into contact with the upper part of the exit-side rolling line roller table 32 and stopped. The roller 42 is lowered to make the conveying path line L of the same height as the exit side rolling roller table 4.
3, and the new pressing member 21 'is carried into the mold 22 at the same time to reduce the side surface. (5) The roller table dedicated to the exit press during the pressing of the new pressing member 21'. 42 is the roller table 41 dedicated to the entry side / center press,
It is raised to the same height as the conveyance path line 43. Therefore, the roller table dedicated to press can be shortened, and a detailed combination of the lifting and lowering steps can be performed, so that the time required for unloading / entering the rolled-down material to the transport path line can be reduced. Furthermore, a new rolling material can be carried in the immediate vicinity of the mold.

Next, although not shown, a third embodiment of the rolled material conveying apparatus of the present invention will be described. In this embodiment, the input and output rolling line roller tables of the first and second embodiments are fixed, whereas in the present embodiment, the input and output rolling line roller tables have a center of gravity. The tilting device or the elevating device can be tilted or lowered within a range in which the front and rear ends of the protruding pressing member positioned inside the roller table for exclusive use of the press do not contact. With this configuration,
Contrary to the above, in the state where the center of gravity is positioned inside the roller table for exclusive use of the press and the material for reduction is placed, even if the roller table for exclusive use of the press is short enough for the front and rear ends of the material for reduction to protrude, By using the tilting or elevating device to tilt or lower the incoming / outgoing side rolling line roller table to a predetermined height,
The contact with the reduction material can be avoided, and the reduction material can be prevented from sliding down.

It should be noted that the present invention is not limited to the above-described embodiment, and it is needless to say that various modifications can be made without departing from the spirit of the present invention.

[0028]

As described above, the conveying device and the conveying method of the rolled material according to the present invention reduce the total length of the roller table for exclusive use of the press, thereby reducing the restriction on the installation place, and further reducing the pressure. Excellent effects such as shortening the unloading and loading time by transporting the rolled material to the immediate vicinity of the forging press, preventing the temperature of the rolled material from dropping, shortening the rolling line, and reducing equipment costs. Having.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram showing a first embodiment of a rolled material conveying device of the present invention.

FIG. 2 is an overall configuration diagram showing a second embodiment of a rolled material conveying device of the present invention.

FIG. 3 is a schematic view of a conventional forging press.

[Description of sign]

 DESCRIPTION OF SYMBOLS 1 Forging press apparatus 2,23 Horizontal forging press 11,21,21 'Bloom (reduced material) 4,22 Die 5,24 Press body 6,25 Column 8 Stepped roll 9 Roll 10 Floor surface 11 Support material 11,33 , 40 Roller table for exclusive use of press 12, 31 Incoming side rolling line roller table 13, 13, Outgoing side rolling line roller table 20 Conveying device 34, 45, 46, 47 Lifting device 41 Roller table exclusively for incoming side press 42 Roller exclusively for outgoing side press Table 43 Center press roller table P Rolling line L Transfer path line H Height G1, G2, G3 Center of gravity R1, R2, R3, R4 Overall length

Claims (5)

[Claims] 1. A horizontal forging press which is disposed in a horizontal direction perpendicular to a side surface of a drafting member and holds a die to be lowered so as to be close to and away from each other, and an input / output device disposed on the upper and downstream sides of the horizontal forging press. It is located between the outgoing side rolling line roller table and the incoming / outgoing side rolling line roller table, and the center of gravity of the rolled material is located inside, and even if the front and rear ends protrude, it contacts the incoming and outgoing side rolling line roller table during forging. And an ascending and descending press-only roller table having an integral or divided structure having a predetermined length not to be conveyed. 2. A roller table dedicated to press having the divided structure includes a roller table dedicated to an input / output side and a roller table dedicated to a center press disposed therebetween, and can be individually raised and lowered. Claim 1
3. A conveying device for a rolled-down material according to claim 1. 3. The in-out and out-rolling line roller table is characterized in that the center of gravity is located inside the press-dedicated roller table, and is inclined or lowered within a range in which the front and rear ends of the protruding rolling material do not contact. The conveying device for a draft material according to claim 1 or 2, wherein 4. A horizontal forging press which is disposed in a horizontal direction perpendicular to the side surface of the drafting member and holds a die to be lowered so as to be able to approach / separate from each other, and an input / output device disposed on the upper and downstream sides of the horizontal forging press. It is located between the outgoing side rolling line roller table and the incoming / outgoing side rolling line roller table, and the center of gravity of the rolled material is located inside, and even if the front and rear ends protrude, it contacts the incoming and outgoing side rolling line roller table during forging. A press-only roller table having an integral or divided structure having a predetermined length that does not have a predetermined length, and a press-down material that is carried in from a conveyance path line of the same height, has a center of gravity therein, and has a rear end protruding. Raise the loaded roller table to the height where the upper part of the entry-side rolling line roller table does not come into contact with the rolling material, and then lower the side while lowering the side surface with a horizontal forging press. Next, the rolling material is completed, the rolling is completed, the rolling material is carried out of the mold, the center of gravity remains inside, and the rolled material whose tip end protrudes from the roller table for exclusive use of the press is stopped at a position where it does not come into contact with the upper part of the delivery side rolling line roller table. Next, the roller table dedicated to the press is lowered to the same transport path line height with the rolling material placed, and then the rolling material is carried out to the exit-side rolling line roller table, and at the same time, the new rolling material waiting is pressed. A method for transporting a rolled-down material, comprising sequentially transporting the rolled material into a dedicated roller table. 5. A roller table exclusively used for an input / output side press,
A dedicated roller table that can be individually raised and lowered has a divided structure consisting of a roller table dedicated to the center press placed between them, and is placed on a three-part roller table that is raised and lowered to the same height to complete the rolling down. After the rear end of the rolled material is unloaded from the center press roller table, the entrance press roller table is lowered to the same height as the transfer path line of the incoming rolling line roller table where the next new roll material waits. Next, the new pressing material is carried into the roller table dedicated to the incoming press, raised to the same height as the roller table dedicated to the center press, transported to the immediate vicinity of the mold, made to stand by, and then unloaded from the roller table dedicated to the center press. The rolling material whose center of gravity remains inside the roller table dedicated to the exit press and whose tip protrudes from Transported to a position where it does not come into contact with the upper part of the table and stopped. The rolling material is transported between the molds to reduce the side surface, and during the reduction of the new rolling material, the exit-side press roller table is raised to the same height as the transfer path line of the entry / center press roller table. A method for conveying a draft material, characterized in that: