JPH07277511A - Plate-shape material supply and storage device - Google Patents

Abstract

PURPOSE:To improve handling efficiency of a heavy plate-shape material by moving a pallet below a plate-shape material carry-in level by an ascent and descent mechanism to load the plate-shape material on the pallet and lifting the pallet up to a clamper position to support the clamped pallet from below and lift the whole pallet by one step so that a new lowermost pallet is clamped. CONSTITUTION:A rod of an ascent and descent cylinder 6 is lowered below a conveyance level of a steel plate slab S to set a pallet 5 and carry in the steel plate slab S. Next, the ascent and descent cylinder 6 is operated to lift the pallet 5 up to a level of a clamper 8. Then, the lifted pallet 5 is knocked against a lower surface of the lowermost pallet 5 which is held by the clamper 8. Holding of the clamper 8 is released in conjunction with the knocking of the pallet 5, and the whole pallet 5 is supported by the ascent and descent cylinder 6. Next, after the whole pallet 5 is lifted by one step by the ascent and descent cylinder 6, the clamper 8 is operated to hold the whole pallet 5 continuously by the clamper 8.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a supply and storage device capable of easily loading and unloading plate-shaped materials, and more particularly to a device configuration suitable for handling heavy plate-shaped materials such as steel plate slabs.

[0002]

2. Description of the Related Art Equipment for the storage and delivery of heavy steel slabs, etc. to a line is carried out by horizontally moving the steel slab using magnets, tongs for clamps, etc. The conventional method has been to place several steel plate slabs flat.

In the case of such a flat type storage which is piled up and down, when the necessary steel plate slab is on the lower side, the unnecessary steel plate slabs stacked on it are temporarily removed and the desired one is removed. There is no choice but to collect it. For this reason, it takes time to store and recover the steel plate slab, and it is necessary to widen the storage space, which is a major obstacle to workability and equipment.

Further, in place of the flat storage, a facility in which, for example, two high-rise racks are constructed and a stacker crane is arranged between them is also widely used as adapted to various storage objects. In the storage, loading, and unloading with the combination of the stacker crane and the rack, efficient workability can be obtained by mechanical handling.

[0005]

However, in a stacker crane and a crane equipped with a crane, for example, when handling a steel plate slab, if the length is too large, proper storage is hindered. In other words, the stacker crane uses a telescopic support to transfer products to and from the rack.Therefore, when the product is wide, it is necessary to increase the space between the rack ridges as well as the strength of the single-beam structure support. Also needs to be larger. For this reason,
The storage and storage of large steel plate slabs is difficult to handle as equipment using such a stacker crane.

As described above, when a heavy steel plate slab is targeted, the conventional storage facility lacks an efficient response in terms of storage and storage and carrying in and out of the storage position.

The problem to be solved in the present invention is to provide a supply and storage device which can achieve efficient handling of a large-sized plate-shaped material with simple equipment.

[0008]

SUMMARY OF THE INVENTION The present invention has a space capable of accommodating at least two stacked rows in which pallets for mounting plate-like materials are vertically stacked, and the pallets are arranged between the stacked rows. A clamper that has a circulation system that allows the pallets to be circulated and transferred by drawing a loop, and a clamper that supports the pallet at the lower end of the stacking row, and a clamper that is below the clamper and from the loading / unloading level of the plate-shaped material. And a lifting mechanism for moving the pallet in a stroke above the support level of the pallet.

[0009]

The plate-like material can be mounted on the pallet which is stroked by the elevating mechanism by setting the level thereof to be lower than the carry-in level of the plate-like material. Then, when the pallet is lifted up to the level of the clamper by the lifting mechanism, the lowermost one of the pallets in the stacked row held by the clamper comes to support the lifting mechanism instead of the clamper, and the newly loaded pallet is loaded. The stack including the stack is supported by the lifting mechanism. At this time, the restraint by the clamper can be released, and if the lifting mechanism raises only one pitch of the stacking pitch, the clamper will correspond to the loaded pallet, and the restraint by the clamper on the pallet at the bottom will A stacked row of pallets is retained.

Further, by making it possible to circulate in a loop shape between the stacked rows of pallets, it is possible to transfer the pallets of any stage in any row to the loading / unloading position, and the target plate shape. The material can be carried out only by transferring the pallet.

[0011]

1 is a front view of a supply and storage device according to the present invention, and FIG.
Is a plan view thereof, and FIG. 3 is a left side view thereof.

In the figure, a row of four posts 1 is divided into three rows.
Storage areas A ₁ and A ₂ are defined by arranging them in a row plane and connecting the lower beam 2 and the upper beam 3 to these posts 1 and arranging the laminated space of the steel plate slab in two rows on the left and right.

Below the storage area A ₁ , a plurality of rollers 4 for loading and unloading the steel plate slab S are arranged in the direction of the arrow in the figure. Then, a pallet 5 for mounting the steel plate slab S carried in by the four rows of rollers is provided so as to be able to circulate between the _two storage areas A ₁ and A ₂ .

As shown in FIG. 2, the pallet 5 has a frame structure composed of a frame member 5a having a plane shape smaller than that of the steel plate slab S, and the rollers 4 are arranged in an area surrounded by the frame member 5a. Use a layout that does not interfere with each other.

As shown in FIG. 1, fixed seats 5b are provided at four positions on both ends of the frame member 5a in the width direction. As shown in FIG. 4, the fixed seat 5b has pin holes 5c and 5d having horizontal opening axes at two positions in the longitudinal direction.
It was opened. The upper end is provided with a projection 5e, and the lower end surface is provided with a recess 45 in which the projection 5e is hollowed in the same shape. Such a protrusion 5e
By providing the pallet 5 and the recess 5f, when the pallets 5 are stacked as shown in FIGS.
Protrusion 5e fits into recess 5f of the upper one,
The upper and lower pallets 5 are constrained to each other.

The pallets 5 are preliminarily provided with the number of sheets shown in FIG. 3, and the loaded steel plate slabs S are mounted and stored, and the pallets 5 are circulated between the storage areas A ₁ and A ₂ and carried out by four rows of rollers. It enables the operation of.

In order to store and circulate the steel plate slab S using the pallet 5 as described above, a total of eight lifting cylinders 6 are arranged in the storage area A ₁ and 8 in the storage area A ₂ as well.
Arrange the lifting cylinder 7 of the book. These elevating cylinders 6 and 7 are arranged in a vertical posture as shown in FIGS. 1 and 3, and the level of the elevating cylinder 6 on the storage area A ₁ side is slightly lower than that of the elevating cylinder 7 on the storage area A ₂ side.

As shown in FIG. 4, the lifting cylinders 6 and 7 are shaped so that the tips of the rods 6a and 7a fit into the recesses 5f of the fixed seat 5b of the pallet 5 and can be fitted therein. .

After the steel plate slab S is carried into the storage area A ₁ by the four rows of rollers as shown in FIG. 3, the steel plate slab S is stacked and stored together with the pallet 5, so that each of the three lower beams 2 is stored. , And a plurality of clampers 8 are provided. As shown in FIG. 2, these clampers 8 are arranged in the lower beam 2 located at the center and eight in each of the lower beams 2 at both ends.

FIG. 5 is a plan view showing the arrangement of the clamper 8 at the left end of the central lower beam 2 in FIG. 2, and FIG. 6 is a left side view of the same portion.

The clamper 8 is provided with a clamp block 8c which is connected to a rod 8b of a cylinder 8a and is slidably mounted on the lower beam 2. The clamp block 8c is fitted into the pin holes 5c and 5d of the pallet 5 at the tip thereof. A pin 8d for inserting is provided. The outer diameter of the pin 8d is sufficiently smaller than the pin holes 5c and 5d.

Of the clampers 8 arranged in four sets of two on the lower beam 2, the clamper 8 on the right side is the pin 8 on the side of the storage area A _1.
In the case of the left arrangement, the pin 8d is directed to the storage area A ₂ side. The clamper 8 located on the lower side in FIG. 2 is paired with the clamper 8 arranged on the right side in FIG. 5 so that the pin 8d can be inserted into the pin hole 5c of the fixed seat 5b. The clamper 8 located on the upper side in FIG. 2 is paired with the clamper 8 arranged on the left side in FIG. 5 so that the pin 8d can be inserted into the other pin hole 5c.

By displacing the positions of the clampers 8 provided on the lower beam 2 in the center to the left and right in this way, the width of the frontage in the left-right direction in FIG. 3 can be made shorter than when the clampers 8 are arranged coaxially. It is possible to reduce the equipment area.

On the upper surface of the upper beam 3, four sets of rails 9 are provided.
a and 9b are provided in a direction orthogonal to the arrangement direction of the upper beam 3, and a shift device 10 for circulation that travels using the four sets of rails 9a and 9b is provided.

As shown in FIG. 3, the shift device 10 includes a traveling carriage 10a which has a drive mechanism built therein and moves on rails 9a and 9b, and a hanger 10c which is connected to the traveling carriage 10a by a cylinder 10b so as to be vertically movable. A restraint unit 11 for restraining and holding the pallet 5 is provided at both ends of the hanger 10b.

The restraint unit 11 is, as shown in FIG.
Hook 11a with wheel 11b in hanger 10b
Is provided and can be moved in the left-right direction in the drawing by the cylinder 11c. And hook 1
At the lower end of 1a, there is a restraint pin 11d that fits into a pin hole 5c formed in the fixed seat 5b of the pallet 5. As in the case of the pin 8d of the clamper 8, the outer diameter of the restraining pin 11d is sufficiently smaller than the pin hole 5c.

The restraint unit 11 aligns the level of the hook 11a with the fixed seat 5b of the pallet 5 stacked on the uppermost stage in FIG. 3 and moves the hook 11a toward the center to move the restraint pin 11d. Pin hole 5
can be inserted into c. Then, the hanger 10c is raised by the cylinder 10b and the traveling carriage 10 is
By moving a on the rails 9a and 9b, the pallet 5 can be transferred between the storage areas A ₁ and A ₂ .

At the bottom of each of the storage areas A ₁ and A ₂ ,
Transfer rollers 12 and 13 for transferring the pallet 5 between the storage areas A ₁ and A ₂ are provided.

The transfer roller 12 on the storage area A ₁ side is installed on an elevating frame 12b supported by a cylinder 12a as shown in FIGS. 3 and 7, and can change the level of the transfer surface of the pallet 5. On the other hand, the transfer roller 13 on the side of the storage area A ₂ has a fixed frame 13a as shown in FIG.
When the transfer roller 12 on the storage area A ₁ side has the lowest level, the transfer roller 12 is positioned at a higher level than the transfer roller 12.

In the above structure, as shown in FIG.
There is an empty pallet 5 on the rod 6a of the lifting cylinder 6, and when the steel plate slab S is carried into the pallet 5 by driving four rows of rollers or by a pusher mechanism (not shown), the lifting cylinder 6 is activated. The rod 6a rises above the conveyance level of the roller 4. As a result, the eight rods 6a correspond to the recesses 5f of the fixed seat 5b.
It goes in and raises the pallet 5 with the steel plate slab S mounted thereon.

When the pallet 5 is lifted up to the level of the clamper 8 by the lifting cylinder 6, the pallet 5
Hits the lower surface of the lowermost pallet 5 held by the clamper 8. Then, by raising the rod 6a of the lifting cylinder 6 a little further, the pin 8d of the clamper 8 is set to float in the pin hole 5c, and the engagement between the pin 8d and the pin hole 5c is completed. To solve. As a result, the weight of the pallet 5 and the steel plate slab S stacked up to the uppermost stage is received by the lifting cylinder 6.

Next, the pin 8d is pulled out from the pin hole 5c of the pallet 5 initially held by the clamper 8 by the operation of the cylinder 8a. As a result, the entire pallet 5 including the lowermost pallet 5 mounted on the lifting cylinder 6 can be moved upward, and the lifting cylinder 6 raises the stacking pitch of the pallets 5 by one pitch. By this rise, the clamper 8 comes to correspond to the pallet 5 at the lowermost stage, and by inserting the pin 8d into the pin hole 5c of the pallet 5, the laminated body of the pallet 5 and the steel plate slab S is held by the clamper 8. . After this, the elevating cylinder 6 descends and returns to its original position, in preparation for loading or unloading a new steel plate slab S.

To transfer the pallet in the storage area A ₁ to the storage area A ₂ by the shift device 10, as shown in FIG.
The hanger 10c is lowered by the cylinder 10b to adjust the level of the restraint pin 11d of the restraint unit 11.
At this time, the hooks 11a of the restraint unit 11 are moved in a direction projecting from both ends of the hanger 10c so that the restraint pins 11d do not interfere with the pallet 5 when the hanger 10c descends.

Then, the hook 1 is moved by the cylinder 11c.
When 1a is moved to the center side, the restraining pin 11d enters the pin hole 5c of the fixed seat 5c. Therefore, the hanger 1
By raising 0c, as shown in FIG. 3, the topmost stacked pallets 5 can be lifted.

The constrained pallet 5 is mounted on the traveling carriage 10a.
Are transferred by the synchronous movement to the storage area A ₂ side and are discharged to the upper side of the lower pallet pallet 5 in the reverse procedure of the collection. That is, by lowering the hanger 10c and releasing the restraint by the restraint pin 11d of the restraint unit 11,
Fixed seat 5 of pallet 5 transferred onto lower fixed seat 5b
They are stacked so that b is placed.

The transfer of the pallet 5 from the storage area A ₂ to the storage area A ₁ side can be performed by the same operation.

The procedure for transferring the steel plate S mounted on the pallet 5 at the bottom of the storage area A ₂ to the storage area A ₁ is as follows.

First, the rod 7a of the elevating cylinder 7 is raised to receive the fixed seat 5b of the pallet 5 at the lowermost stage and raise it a little, so that the pin 8d of the clamper 8 is set so as to be easily removed from the pin hole 5d. After removing the pin 8d, the rod 7a is lowered by one pitch of the stacking pitch of the pallet 5, and the pallet 5 at the next stage is clamped by the clamper 8.

By this operation, the lowermost pallet 5 becomes independent of the upper row of stacked pallets 5, and the pallet 5 is received by the transfer roller 13 when the elevating cylinder 7 descends. Then, after aligning the transfer roller 12 on the storage area A ₁ side with the transfer roller 13, the pallet 5 is moved to the transfer roller 12 side by a pusher mechanism (not shown) or the like. As a result, the pallet 5 on the side of the storage area A ₂ can be transferred to the side of the storage area A ₁ , and in the same manner, it can be transferred in the opposite direction.

As described above, the pallet 5 can be transferred between the storage areas A ₁ and A ₂ by using the lifting cylinders 6 and 7 and the transfer rollers 12 and 13 without using the shift device 10. it can.

The carried-in steel plate slab S can be stored in a laminated state by the elevating cylinders 6 and 7 and the clamper 8 described above. Then, when the stored steel plate slab S is carried out to the line, by operating the shift device 10 and the transfer rollers 12 and 13, the storage area A
By circulating the pallet 5 between ₁ and A ₂ ,
All can be carried out mechanically.

For example, in FIG. 3, when the target steel plate slab S is in the storage area A ₁ , the rows of the pallet 5 are sequentially lowered and transferred to the storage area A ₂ side by the transfer rollers 12 and 13. . When the pallet 5 on which the target steel plate slab S is placed reaches the lowermost stage, the pallet 5 is received by the elevating cylinder 6, the level thereof is lowered to the roller 4, and the pallet 5 is placed and carried out to the line. in this case,
The pallet on the storage area A ₂ side is sequentially transferred to the storage area A ₁ side from the top by the shift device 10 and circulated.

Further, the target steel plate slab S is stored in the storage area A.
₂ , the shift device 10 and the transfer roller 12,
By using 13, the steel plate slab S can be recovered by circulating the stacked row of the pallets 5 clockwise or counterclockwise in FIG.

As described above, according to the present invention, the work of loading and unloading the steel plate slab S can be carried out from the lower end of the equipment, and the supply and storage of the long and heavy steel plate slab S which cannot be handled by the equipment such as the stacker crane. Can be done efficiently.

In addition, taking out the stored steel plate slab S
Compared with the case of flat placement, the target steel plate slab S can be mechanically and promptly recovered by circulating the pallet 5,
Processing efficiency is also greatly improved.

Although the steel plate slab is taken as an example in the embodiment, it is needless to say that the present invention can be applied to supply and storage of a large weight plate-shaped material.

[0047]

According to the present invention, a large number of plate-like materials can be stacked and stored using a pallet, and the plate-like materials can be loaded and unloaded by circulating the pallets and the like. Handling is much more efficient than storage, and work efficiency can be improved.

Further, compared with the equipment using a stacker crane or the like, the equipment space is slightly larger than twice the width of the plate-shaped material, and the equipment area and the equipment cost can be reduced.

[Brief description of drawings]

FIG. 1 is a partially cutaway front view of a plate material supply and storage device of the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is a left side view of FIG.

4A and 4B are views showing a main part of a pallet and an elevating cylinder, wherein FIG. 4A is a view seen in a sheet steel slab conveyance direction, and FIG. 4B is a right side surface of FIG. 4A. It is a figure.

FIG. 5 is a plan view of a main part showing an arrangement of clampers with respect to a pallet.

6 is a left side view of a portion corresponding to FIG.

FIG. 7 is a cutaway front view of an essential part showing an arrangement example of a shift device and a transfer roller.

FIG. 8 is a view showing a restraint unit provided in the shift device.

[Explanation of symbols]

1 post 10 shift device 2 lower beam 10a traveling carriage 3 upper beam 10b cylinder 4 roller 10c hanger 5 pallet 11 restraint unit 5a frame member 11a hook 5b fixed seat 11d restraint pin 5c, 5d pin hole 12, 13
Transfer roller 6 Lifting cylinder 7 Lifting cylinder 8 Clamper 8a Cylinder 8b Rod 8c Clamp block 8d Pin 9a, 9b Rail

Claims (1)

[Claims] 1. A pallet is circulated by drawing a loop between the stacked rows of the pallets having a space capable of accommodating at least two stacked rows in which the pallets for mounting plate-like materials are vertically stacked. A clamper that has a circulation system that enables transfer, and that supports the pallet at the lower end of the stacking row, and below the clamper, from the loading / unloading level of the plate-shaped material to a level above the pallet supporting level of the clamper. A plate-like material supply and storage device having an elevating mechanism that strokes the pallet.