JP3333456B2 - Stock table mechanism - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stock table mechanism which is provided, for example, on a transport line for directly feeding billets from a continuous casting facility to a rolling facility, and temporarily stores the billets.

[0002]

2. Description of the Related Art For example, when a billet is directly sent from a continuous casting facility to a rolling facility, the continuous casting facility has a substantially constant production amount per line. While you need to increase or decrease,
The production volume of the rolling equipment increases or decreases depending on the product shape, and in some cases, is stopped for a short time. Therefore, when the slab is directly sent from the continuous casting facility to the rolling facility, the slab is temporarily stored in a transfer line from the continuous casting facility to the rolling facility in order to cope with a production amount that does not coincide with each other. Equipment is required. In addition, when melting a steel slab in an electric furnace for continuous casting, the determination of the composition of the steel slab may be found after being removed from the continuous casting facility, in which case the steel slab is rolled until the determination of the component is found. Can not do it. Therefore, it is necessary to temporarily store the billets during that time.

In view of the above, a so-called walking beam mechanism as shown in FIG. 6 has conventionally been used as a facility for temporarily storing billets. This walking beam mechanism is provided for each of a plurality of stock beams 17 provided at right angles to a transport line L formed by a number of transport rollers 16. Then, the lower frame 20 is pulled by contracting the rods of the upper and lower cylinders 22, and the rollers 24 supported by the lower frame 20 ride on the inclined rails 21.
The upper frame 19 located on the upper surface of the lower frame 20 and the transition beam 18 fixed to the upper frame 19 are both raised, and the transition beam 18 is projected above the stock beam 17. Accordingly, the billet S mounted on the stock beam 17 is separated from the stock beam 17 and mounted on the transition beam 18.

In this state, the rods of the left and right cylinders 23 are contracted to move the upper frame 19 forward on the upper surface of the lower frame 20, whereby the transition beam 18 is moved forward with the steel piece S mounted thereon. And upper and lower cylinder 2
2 and extend the lower frame 2
0, the upper frame 19 and the transition beam 18 are moved downward to place the steel piece S on the transition beam 18 on the stock beam 17. By doing so, the stock beam 1
7 is to move the billet S forward. The bill S is moved backward by the reverse movement.

[0005]

However, since this conventional walking beam mechanism needs to be provided for each stock beam, when a large number of stock beams need to be installed, the same number of walking beams are required. Since a mechanism needs to be installed, there is a problem that equipment costs are increased.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a stock table mechanism capable of reducing equipment costs and storing billets smoothly.

[0007]

In order to achieve the above object, a stock table mechanism according to the first aspect of the present invention is provided on a transport line (L) for transporting a billet (S), For temporarily storing the pieces (S),
A plurality of stock tables (1) are arranged side by side at right angles to the transport line (L), and adjacent to and parallel to the stock tables (1),
A transfer table (2) is provided which can freely protrude from the upper surface of the stock table (1) and move back and forth in the direction in which the stock table (1) extends, and is provided below the stock table (1) in parallel with the transport line (L). A traveling rail (4) is provided, and the traveling rail (4) is moved to a lower position of each of the plurality of stock tables (1). Of the billet (S) of the stock table (1)
A moving vehicle (3) for moving forward and backward is provided.

According to a second aspect of the present invention, there is provided a stock table mechanism, wherein the movable vehicle (3) according to the first aspect is mounted on a fixed frame (5) having wheels (W) running on a running rail (4). A movable frame (6) is attached via a parallel link (7) to an upper portion of a lower frame (10) guided by a guided guide (G) and movable in a direction in which the stock table (1) extends, and a lifting cylinder. The base of (8) is supported on the lower frame (10), and the rod end of the lifting cylinder (8) is supported on the moving frame (6).
The moving frame (6) is moved up / down by moving up / down the moving frame (6) due to the extension / contraction of the rod of the lifting cylinder (8).
The base of the reciprocating cylinder (9) is pivotally supported by the fixed frame (5), and the rod tip of the reciprocating cylinder (9) is pivotally supported by the moving frame (6) to extend / retract the rod of the reciprocating cylinder (9). Moving frame by contraction (6)
Characterized in that the transfer table (2) is moved forward / backward through forward / backward movement.

The symbols in parentheses above correspond to the symbols described in the drawings and the embodiments of the invention described later.

According to the stock table mechanism of the first aspect of the present invention, the moving vehicle is moved on the traveling rail to be moved to each lower position of the plurality of stock tables, and the steel mounted on each stock table is moved. The piece can be moved forward or backward. Therefore, a single moving vehicle can handle the steel slabs placed on all the stock tables,
Equipment costs can be significantly reduced as compared to equipment having a mechanism for moving a billet forward and backward on each stock table.

Further, according to the stock table mechanism of the present invention, after the moving vehicle is moved to a lower position of each stock table, the rods of the lift cylinder and the reciprocating cylinder are extended and contracted to move the transfer table to the lower position. Since the steel pieces placed on the stock table can be easily moved forward and backward by making a substantially rectangular movement through the moving frame, the cost of equipment can be reduced and the steel pieces can be stored smoothly.

That is, the moving frame is raised by the extension of the rod of the lifting cylinder, and the transfer table on the upper side of the moving frame is raised in conjunction with the movement of the rod, and the steel slab on the stock table is placed on the transfer table. Then, as the lower frame moves to the opposite side of the transport line along the guide due to the contraction of the rod of the reciprocating cylinder, the moving frame connected to the lower frame via a parallel link retreats, the transition table retreats and the steel The piece moves to the opposite of the transport line side. After the movement is completed, the moving frame and the transfer table are lowered by contracting the rod of the lifting cylinder, and the steel slab is placed on the stock table. Thereafter, the rod of the reciprocating cylinder is extended, and the moving frame and the transfer table together with the lower frame can be moved forward to the carrying line side. By repeatedly performing such an operation, the billet can be stored, or by repeatedly performing the reverse operation, the stored billet can be easily discharged.

In particular, since the elevating mechanism including the elevating cylinder uses a parallel link connecting the lower frame and the moving frame, the extending / contracting action of the rod of the elevating cylinder is effectively transmitted in a limited space. And space saving can be achieved.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A stock table mechanism according to an embodiment of the present invention will be described with reference to FIGS. 1 is a plan view showing a stock table mechanism, FIG. 2 is a view taken along the line AA of FIG. 1 showing an elevating mechanism of the moving vehicle 3, and FIG. 3 is a BB arrow of FIG. FIG. 4 is a view taken along the line CC in FIG. 1, and FIG. 5 is an explanatory view showing a substantially rectangular movement of the transition table.

The stock table mechanism according to the embodiment of the present invention is provided in the middle of a transport line L for directly sending a billet S from a continuous casting facility to a rolling facility.
A plurality of stock tables 1 are arranged side by side at right angles to each other, and a transition table 2 is provided adjacent to and parallel to the stock table 1 so as to be able to protrude from the upper surface of the stock table 1 and move forward and backward in the direction in which the stock table 1 extends. . Further, a travel rail 4 is provided below the stock table 1 in parallel with the transport line L, and travels along the travel rail 4 using a travel motor 15 as a drive source to move to a lower level of each of the plurality of stock tables 1.
By moving the transfer table 2 in a substantially rectangular motion, the billet S on the stock table 1
Is provided on the stock table 1 with a moving vehicle 3.

The moving vehicle 3 will be specifically described.
Fixed frame 5 having wheels W running on running rail 4
, A guide G extending in the direction in which the stock table 1 extends is attached, and the lower frame 10 is guided by the guide G. As a result, the lower frame 10
Can move forward and backward in the extending direction. A moving frame 6 is connected to an upper portion of the lower frame 10 by a parallel link 7. The base of the lifting cylinder 8 is supported on the lower frame 10, the rod end of the lifting cylinder 8 is supported on the moving frame 6, and the base of the reciprocating cylinder 9 is supported on the fixed frame 5. The rod end of the reciprocating cylinder 9 is pivotally supported on the moving frame 6.

The stock table mechanism according to the present embodiment operates as follows. First, when the steel slab S flowing on the transport line L constituted by a number of transport rollers 16 is temporarily stored on the stock table 1, the transfer device 25 is operated by a signal from a sensor to operate on the transport line L. Is extruded onto the stock table 1. Note that the transfer device 25 may be provided on the transfer table 2.

Next, when the steel slab S on the stock table 1 is moved backward in the direction away from the conveying line L, that is, from the conveying line L toward the stock table 1 (to the left in FIG. 2), the stock table is moved. The moving vehicle 3 of the mechanism is a traveling rail 4
To move to a position below the corresponding stock table 1 and stop. In this state, the rod of the elevating cylinder 8 whose base is pivotally supported by the lower frame 10 is extended to push the moving frame 6 toward the transport line L. Since the moving frame 6 is connected to the lower frame 10 by the parallel link 7, the moving frame 6 is pushed forward and moves upward, and pushes up the transition stage 2 located above the moving frame 6 (see FIG. 4). By this lifting, the transfer table 2 projects from the upper surface of the stock table 1 and the steel piece S on the stock table 1 is placed on the upper surface.

In this state, when the rod of the reciprocating cylinder 9 whose base is pivotally supported by the fixed frame 5 is contracted, the lower frame 10 moves along the guide G to the side opposite to the transport line L, and the lower frame 10 moves. Parallel link 7 to 10
Frame 6 and the transition stage 2 located on the movable frame 6 and the billet S mounted thereon
Moves to the side opposite to the transport line L (FIG. 4). After the movement is completed, the rod of the elevating cylinder 8 is contracted to move the moving frame 6 downward, and the transfer table 2 is positioned lower than the stock table 1 so that the steel slab S placed on the transfer table 2 can be moved to the stock table. 1 (FIG. 4).

After loading the billet S on the stock table 1, the rod of the reciprocating cylinder 9 is extended to move the transfer table 2 to the transfer line L.
Side (rightward in FIG. 2) (FIG. 4), and furthermore, the rod of the elevating cylinder 8 is contracted to disengage the moving frame 6 from the transition table 2, return the transition table 2 to the original position, and perform other operations. Prepare for moving to stock stand 1.

As described above, the billet S on the stock table 1 is moved backward by moving the transfer table 2 in a substantially rectangular motion. Note that returning the billet S on the stock table 1 to the side of the transport line L can be achieved by moving the transition board 2 substantially in a rectangular direction in the opposite direction to advance the billet S. .

In the present embodiment, the concave portion 13 is formed on the upper surface of the moving frame 6 and the convex portion 14 is formed on the lower surface of the transition base 2, and the transition base 2 is reliably moved forward and backward by engaging the two. It is assumed that. Further, in the present embodiment, the length of the stock table 1 is set to be large so that a large number of billets S can be stored. Also, two mobile vehicles 3 are provided. Accordingly, the two moving vehicles 3 are used to move one transition table 2 substantially in a rectangular shape, and the billet S on the stock table 1 is moved forward and backward.
Depending on the length, the number of moving vehicles may be one, or a plurality of vehicles may be arranged.

[0023]

As described above, according to the stock table mechanism according to the first aspect of the present invention, the steel pieces placed on the plurality of stock tables can be moved forward and backward by one moving vehicle. In addition, the equipment cost can be significantly reduced, contributing to the improvement in productivity of billets.

Further, according to the stock table mechanism of the present invention, after the moving vehicle is moved to a position below each stock table, the billet placed on the stock table by moving the transfer table in a rectangular manner. Can be moved forward and backward without difficulty, so that it is possible to achieve a smooth storage of the billet while reducing the equipment cost, and to improve the productivity by stabilizing the production line. In particular, since the parallel link connecting the lower frame and the moving frame is used in the lifting mechanism composed of the lifting cylinder, the extension / contraction action of the rod of the lifting cylinder is effectively transmitted in a limited space, thereby saving energy. Spatialization can be achieved.

[Brief description of the drawings]

FIG. 1 is a plan view showing a stock table mechanism according to an embodiment of the present invention.

FIG. 2 is a view taken in the direction of arrows AA in FIG. 1 showing a lifting mechanism of the mobile vehicle 3;

FIG. 3 is a view taken in the direction of arrows BB in FIG. 1 showing the advance / retreat mechanism of the moving vehicle 3.

FIG. 4 is a view taken in the direction of arrows CC in FIG. 1;

FIG. 5 is an explanatory view showing a rectangular movement of the transfer table.

FIG. 6 is a plan view showing a conventional walking beam mechanism.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Stock stand 2 Transition stand 3 Moving vehicle 4 Running rail 5 Fixed frame 6 Moving frame 7 Parallel link 8 Elevating cylinder 9 Advancing / retracting cylinder 10 Lower frame 11 Elevating motor 12 Advancing / retreating motor 13 Concave part 14 Convex part 15 Traveling motor 16 Transport roller 17 stock beam 18 transition beam 19 upper frame 20 lower frame 21 inclined rail 22 vertical cylinder 23 left and right cylinder 24 roller 25 transfer device G guide S billet L transfer line W wheel

──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Toshihiro Iwasaki 520 Yokokura Nitta, Oyama City, Tochigi Prefecture Examiner, Norio Mitsuru Tanaka, Tokyo Iron and Steel Corporation 58) Field surveyed (Int. Cl. ⁷ , DB name) B21B 39/00 B21B 43/00

Claims (2)

(57) [Claims] 1. A stock table mechanism provided on a transport line for transporting a billet and temporarily storing the billet, wherein a plurality of stock tables are juxtaposed at right angles to the transport line. A transfer table is provided adjacent to and parallel to the table so as to be freely protrudable from the upper surface of the stock table and movable back and forth in the direction in which the stock table extends. Further, a travel rail is provided below the stock table and parallel to the transport line. A moving vehicle is provided that travels on a rail, moves to a lower position of each of the plurality of stock tables, moves the transition table substantially in a rectangular shape, and moves a steel piece on the stock table forward and backward on the stock table. Stock table mechanism. 2. The moving vehicle is guided by a guide attached to a fixed frame having wheels running on a traveling rail, and is mounted on an upper portion of a lower frame movable in the extending direction of the stock table via a parallel link. The moving frame is mounted, and the base of the elevating cylinder is pivotally supported by the lower frame, and the tip of the rod of the elevating cylinder is pivotally supported by the moving frame. And raising / lowering the transfer stand on the upper side of the moving frame, further supporting the base of the reciprocating cylinder on the fixed frame, and supporting the rod end of the reciprocating cylinder on the moving frame,
2. The stock table mechanism according to claim 1, wherein the transfer table is moved forward / backward through forward / backward movement of the moving frame by extension / retraction of the rod of the forward / backward cylinder.