JP2001328705A - Plate storage system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To store a large number of pallets with plates placed therein on a storage shelf. SOLUTION: This plate storage system comprises a plate storage building 2 with each set of pallet storage shelves 3 in two rows facing each other on a plate storage yard 1 so as to form pallet transfer passages 5 in multi-stage and multi-row between the pallet storage shelves 3, pallets 12 to be stored in the pallet storage shelves 3 with plates 15 placed on the pallets, an overhead crane 7 mounted on a rail 6 installed above the plate storage building 2 in a traveling manner along the building 2, and a pallet carrying table 9 suspended from a trolley 8 traversing on the overhead crane 6, and a pallet transfer device 13 for receiving and delivering the pallet 12 between the pallet carrying table 9 and the pallet storage shelves 3 is provided on the pallet carrying table.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plate storage device, and more particularly to a plate storage device for temporarily storing plates in a factory.

[0002]

2. Description of the Related Art In a steelmaking factory, a steel sheet rolled through a predetermined rolling process is subjected to a base treatment such as painting and color coding in the middle of a final process. The steel plate is moved while being lifted by a crane having a lifting magnet, and is temporarily stored in a predetermined location near the pretreatment facility, for example, in a stacked manner for several days.

[0003]

However, in storage by stacking, when the lower stacked board is first taken out of the stacked boards, that is, when first-in first-out, the stacked upper boards are used. Must be temporarily moved to another place and then taken out, which increases the unpacking work and reduces work efficiency.

SUMMARY OF THE INVENTION The present invention has been devised to solve the above-mentioned problems. A plate storage device capable of storing plates in a pallet, storing the pallets together in a number of pallet storage shelves, and allowing first-in first-out. It is intended to provide.

[0005]

According to the present invention, there is provided a board storage device comprising:
Pallet storage shelves arranged in two rows and one set facing each other so as to form a pallet moving passage between the pallet storage shelves in a multi-stage multi-row arrangement, and a pallet storage shelves storing the plates. It consists of a pallet for storage, an overhead crane movably mounted on a rail laid above the board storage building along the board storage building, and a pallet carriage suspended from a trolley traversing the overhead crane. The pallet carrier has a pallet transfer device for transferring pallets to and from a pallet storage shelf.

Each pallet storage shelf has a plurality of pallet support rollers for supporting the pallet longitudinal ends and a plurality of side rollers for guiding the side surfaces of the pallet longitudinal ends. Both ends preferably have a plurality of pallet support rollers for supporting the longitudinal ends of the pallets and a plurality of side rollers for guiding the side surfaces in the longitudinal direction of the pallets, similarly to the pallet storage shelf.

Further, it is preferable that the uppermost pallet storage shelf is a plate transfer shelf for transferring plates between the crane and the pallet carrier.

Further, each pallet is provided with a ridge at the upper end of the side face of the longitudinal end of the pallet, and a guide groove which is open downward at the widthwise end of the lower surface of the pallet, so that the height of the pallet is increased. And the height of the pallet support rollers, so that a slight gap is formed between the upper surface of the pallet and the lower surface of the upper pallet storage shelf.

Further, the pallet transfer device includes a base that moves in the width direction of the pallet carrier, and an arm that is provided on the base and that has a protrusion that protrudes upward at the tip and that horizontally turns. The pallet is moved between the pallet carrier and the pallet storage shelf by moving the pallet in the width direction by rotating the arm so that the protrusion at the tip of the arm is fitted into a guide groove provided at the widthwise end of the lower surface of the pallet. It is preferable that the delivery be made.

Next, the operation of the present invention will be described. The plates are stored in pallets, and the pallets are stored in a large number of pallet storage shelves, so that the plates are not damaged. A large number of pallet storage shelves in a plate storage yard in multiple stages and multiple rows, and
A pallet carrier suspended from a trolley of an overhead crane by moving a ceiling crane provided above the pallet movement path by arranging and opposing the two rows and one set so as to form a pallet movement path between pallet storage shelves. The pallets are transferred between the pallet storage shelf and the pallet carrier by moving the pallet up and down, so that a desired plate can be taken out from any pallet storage shelf (first-in first-out). Space saving can be achieved.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of the plate storage device of the present invention. FIG. 2 is a front view of the overhead crane. FIG. 3 is a plan view of the plate storage device. FIG. 4 is a front view of the pallet storage shelf. FIG. 5 is a partially enlarged view showing a state where a pallet is stored in a pallet storage shelf. FIG. 6 is a partial side view of the pallet transfer device. FIG.
FIG. 3 is a perspective view of a pallet transfer device. FIG. 8 is a perspective view of the pallet. 1 to 8, reference numeral 1 denotes a steel plate storage yard. Reference numeral 2 denotes a steel plate storage building provided in the steel plate storage yard 1. Reference numeral 2a denotes a support for a pallet storage shelf (storage shelf) 3. 2b is a pit provided at the bottom center of the steel plate storage yard 1, and 2c is an underground part (FIGS. 1 and 4). The storage shelves 3 are provided on the left and right of the pallet moving passage 5 in a multi-stage and multi-row manner in the vertical direction along the pallet moving passage 5. The storage shelf 3 is formed integrally with the column 2a, and the lower half of the storage shelf 3 is provided in the underground part 2c (in FIG. 1, in the up and down direction, as an example, five steps underground and five steps above ground). Provided). 3A is a steel plate transfer shelf provided at the top of the storage shelf 3. Numeral 4 is a column standing along the steel plate storage building 2. 6 is a traveling rail, 7 is an overhead crane. 8 is a trolley of the overhead crane 7, 9 is a pallet carrier (carrier).
It is.

Each of the storage shelves 3 and the steel plate transfer shelves 3A has a number of pallet support rollers 10 for supporting the longitudinal ends of the pallets 12, and a number of side rollers for guiding the side surfaces of the longitudinal ends of the pallets 12. 11 (FIGS. 3, 4, and 5). Positioning holes 3b for inserting and detaching positioning pins 9c provided on a carrier 9 to be described later are provided at the corresponding positions as dead-end holes in the columns 2a of the respective storage shelves 3 and the positioning holes 3b. A V-shaped guide 3a for guiding the positioning pin 9c is projected to each positioning hole 3b (FIGS. 1 and 2). When the plate 15 is stored in the empty pallet 12 or when the steel plate 15 is carried out from the actual pallet (the pallet storing the steel plate 15) 12, the operation is performed on the steel plate transfer shelf 3A. The storage shelves 3 and the steel plate transfer shelves 3A transfer pallets 12 to and from the carrier 9.

The overhead crane 7 is mounted on the traveling rail 6 and travels along the steel plate storage building 2. 7a is a traveling wheel of the overhead crane 7. Reference numeral 8 denotes a trolley provided so as to be able to traverse the overhead crane 7. A carriage 9 is suspended from the trolley 8 by a wire rope 8b extended from a winding drum 8a provided on the trolley 8 so as to be able to move up and down.
9a is a rope sheave provided on the carriage 9;

The carriage 9 carries a pallet 12 containing steel plates 15 thereon. The pallet support roller 10 and the side roller 11 provided on the storage shelf 3
Similarly, the pallet 12 is provided at both ends in the longitudinal direction of the carriage 9.
And a number of side rollers 14a for guiding the side surface of the longitudinal end of the pallet 12 (FIG. 7). A pallet transfer device 13 to be described later is provided substantially at the center of the carriage 9.
Is provided. In addition, at the four corners of the carrier 9, positioning pins 9 are provided in each positioning hole 3 b of the column 2 a of the storage shelf 3.
A positioning cylinder 9b for inserting and detaching c is provided. The positioning pin 9c is moved into and out of the positioning hole 3b by the expansion and contraction operation of the positioning cylinder 9b. As shown by a dotted line in FIG. 2, the carriage 9 passes above the intermediate steel plate transfer shelf 3A or passes through the side of the storage shelf 3 at the unloading port (not shown) so that each pallet moving passage 5 is moved. Can be moved between each other.

The pallet 12 stores and transports the steel plate 15. The pallet 12 is provided with a protruding strip 12b at the upper end of the side face of the longitudinal end of the pallet 12 over the entire width of the pallet 12. In the middle of the widthwise end of the lower surface of the pallet 12, there is provided a guide groove 12a that is open downward. At the bottom of the pallet 12, the steel plate supporting member 1 is provided at a required interval.
6 (FIG. 8).

The pallet transfer device 13 includes a base 13d provided movably in the width direction of the carrier 9 and a horizontal swing arm having a roll-shaped projection 13b at the end rotatably provided on the base 13d. 13a, a cylinder 13e for moving the base 13d in the width direction of the carriage 9, and a horizontal swing arm 13
and a motor 13c for rotating the motor 13a (FIGS. 6 and 7).

Next, the operation of the present embodiment will be described. When storing the steel plate 15 in the storage shelf 3, the overhead crane 7 is driven to stop in front of the desired storage shelf 3, the wire rope 8 b is paid out from the trolley 8, the carrier 9 is moved up and down, and the empty pallet 12 is moved. Adjust to the level of the desired storage shelf 3 being stored. When the level matches the level, the positioning pins 9c on the left and right sides provided at the four corners of the carriage 9 are slightly protruded by the extension operation of the positioning cylinder 9b. When the carriage 9 is further lowered in such a state, the positioning pins 9c protruding from the four corner end surfaces of the carriage 9 engage with the V-shaped guides 3a of the storage shelves 3. To stop the lowering of the carriage 9. Next, the positioning cylinder 9b
Is extended to make the respective positioning pins 9c further protrude, the respective positioning pins 9c are guided by the guides 3a and fitted into the positioning holes 3b of the opposed left and right columns 2a to complete the positioning of the carriage 9. . When the positioning of the carrier 9 is completed, the pallet transfer device 13 on the carrier 9 is slightly moved by the cylinder 13e to the storage shelf 3 from which the empty pallet 12 is taken out, and the arm 13a of the pallet transfer device 13 is moved.
Is turned to move the protrusion 13b at the tip of the arm 13a to the pallet 1
After being fitted into the guide groove 12a on the lower surface 2 and further turning, the pallet transfer device 13 is moved to the original position by the cylinder 13e, and the empty pallet 12 is pulled out from the storage shelf 3 and transferred onto the carrier 9. . Next, the positioning cylinder 9
Each positioning pin 9c is released by the contraction operation of b. Next, the carrier 9 on which the empty pallet 12 has been transferred is raised to the uppermost steel plate transfer shelf 3A, and stopped according to the level of the steel plate transfer shelf 3A. When the level matches the level, the positioning cylinder 9b is extended and the positioning pins 9c are fitted into the positioning holes 3b to position the carrier 9. Next, the pallet transfer device 13 is slightly moved by the cylinder 13e to the steel plate transfer shelf 3A where the empty pallet 12 is temporarily placed, and the arm 13a is turned to transfer the empty pallet 12 to the steel plate transfer shelf 3A. I do. Note that the number of pallets 12 is set to be one less than the total number of storage shelves 3 including the steel plate transfer shelves 3A.

When the empty pallet 12 is transferred to one of the steel plate transfer shelves 3A, the carrier 9 is temporarily placed on the other steel plate transfer shelf 3A, and the actual pallet 12 already containing the steel plate 15
The pallet transfer device 13 pulls out the actual pallet 12 from the steel plate transfer shelf 3A and transfers it to the carrier 9 in the same manner as when the empty pallet 12 is received from the storage shelf 3.
Next, the carriage 9 on which the actual pallets 12 are transferred is lowered, and the empty storage shelves 3 which have received the empty pallets 12 and become empty
The actual pallets 12 are delivered to the storage shelves 3 and stored in the same manner as above when the levels match.

When the steel plate 15 is stored on the empty pallet 12 temporarily placed on the steel plate transfer shelf 3A, the steel plate 15 is lifted and moved from a predetermined location in the steel mill by a crane having a lifting magnet (not shown). To accommodate. At this time, it is preferable that the height of the steel plate 15 be kept within a range not to be higher than the height of the pallet 12 and stored in lot units.

As described above, since the steel plate 15 is stored in the pallet 12 and stored in the large number of storage shelves 3 together with the pallet 12, the steel plate 15 is not damaged. The carriage 9 is moved up and down between the large number of storage shelves 3 and the uppermost steel plate transfer shelf 3A, and the pallets 12 are transferred between the large number of storage shelves 3 and the carriage 9 to form the steel plate transfer shelf 3A. The steel plate 15 is transferred between the pallet 12 and a crane (not shown), so that the steel plate 15 can be taken out of a desired storage shelf 3 regardless of the order of storage (first-in first-out).
Can be.

The height of the pallet 12 is adjusted by adjusting a ridge 12b provided at the upper end of the side surface of the longitudinal end of the pallet 12 and the storage shelf 3
The height of the storage shelves 3 can be minimized because the total height of the pallet support rollers 10 provided is substantially the same.

The pallet 12 between the storage shelf 3 and the carriage 9
Pallet transfer device 13 provided on carrier 9
Therefore, it is not necessary to separately provide a driving device for moving the pallet 12 in each storage shelf 3.

The present invention is not limited to the above-described embodiment, but can be variously modified without departing from the gist of the present invention. For example, although a steel plate has been described in the above embodiment, a metal plate such as an Al plate, a plastic plate, a wood plate, or the like may be used. When an Al plate, a plastic plate, a wood plate, or the like is stored, it is moved while being lifted by a crane having a vacuum suction disk instead of a lifting magnet. Further, although the lower half of the storage shelves is provided underground, all the storage shelves may be provided on the ground. If rollers are provided at the four corners of the pallet, pallet support rollers may not be provided in each storage shelf or carrier. The transfer of the pallet between the storage shelf and the carrier may be performed by a device other than the pallet transfer device having the swivel arm.

[0024]

As described above, according to the present invention,
Since the plates are stored in a pallet and the pallets are put in and out of a large number of storage shelves, regardless of the order of storage, a desired plate can be taken out from any storage shelf,
Therefore, excellent effects such as improvement of working efficiency and space saving can be achieved.

[Brief description of the drawings]

FIG. 1 is a perspective view of a plate storage device of the present invention.

FIG. 2 is a front view of the overhead crane.

FIG. 3 is a plan view of the plate storage device.

FIG. 4 is a front view of a pallet storage shelf.

FIG. 5 is a partially enlarged view showing a state where pallets are stored in storage shelves.

FIG. 6 is a partial side view of the pallet transfer device.

FIG. 7 is a perspective view of a pallet carrier.

FIG. 8 is a perspective view of a pallet.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Steel plate storage yard 2 Steel plate storage building 2a Column 3 Storage shelf 3A Steel plate transfer shelf 5 Pallet transfer passage 6 Travel rail 7 Overhead crane 8 Trolley 9 Pallet carrier 10, 14 Pallet support roller 11, 14a Side roller 13 Pallet transfer Equipment 15 Steel plate

Claims (5)

[Claims] 1. A plate storage building in which a plurality of pallet storage shelves are arranged on a plate storage yard in a multi-stage and multi-row arrangement, and two sets of pallet storage shelves are opposed to each other so as to form a pallet moving passage between the pallet storage shelves. A pallet for storing boards and storing them in pallet storage shelves, an overhead crane mounted on a rail laid above the board storage building along the board storage building, and a trolley traversing the overhead crane A pallet carrier suspended from the pallet carrier, the pallet carrier having a pallet transfer device for transferring pallets to and from a pallet storage shelf. 2. Each pallet storage shelf has a plurality of pallet support rollers for supporting a pallet longitudinal end and a plurality of side rollers for guiding a side surface of the pallet longitudinal end. 2. A pallet according to claim 1, further comprising a plurality of pallet support rollers for supporting the longitudinal end of the pallet and a plurality of side rollers for guiding the pallet in the longitudinal direction. Board storage device. 3. The plate storage device according to claim 1, wherein the uppermost pallet storage shelf is a plate transfer shelf for transferring plates between a crane and a pallet carrier. 4. Each pallet is provided with a ridge at the upper end of the side face of the longitudinal end of the pallet, and a guide groove which is open downward at the widthwise end of the lower surface of the pallet. The height of the pallet is substantially equal to the sum of the height of the pallet support roller and a slight gap is formed between the upper surface of the pallet and the lower surface of the upper pallet storage shelf. Board storage device. 5. A pallet transfer device comprising: a base that moves in the width direction of a pallet carrier; and an arm that is provided on the base and has a protrusion that protrudes upward at a tip and horizontally turns. When the arm is turned, the protrusion at the tip of the arm is fitted into a guide groove provided at the widthwise end of the lower surface of the pallet, and the pallet is moved in the width direction to move the pallet between the pallet carrier and the pallet storage shelf. The plate storage device according to claim 1, wherein the plate storage device is delivered.