JPH0730564Y2 - Pallet type storage shelf - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a shelf for storing articles, and more particularly to a pallet type storage shelf in which a pallet is provided for each shelf.

[Prior Art] Generally, shelves are used to store articles. This shelf is characterized by being capable of accommodating a large number of articles with a minimum installation floor area by being configured in multiple stages in the vertical direction.

Further, by providing a pallet that can be taken out from each shelf for each shelf, it is possible to bring an article to a desired taking-out portion without dropping it.

[Problems to be Solved by the Invention] However, in the storage rack configured as described above, it is necessary to take out the pallet from each shelf every time the article is taken out and stored, which is troublesome. In particular, when automating the above-mentioned taking-out and storing operations, the loss time associated therewith must be minimized.

The present invention has been made in view of the above circumstances, and provides a pallet-type storage shelf that is most suitable for automation while minimizing the work required for taking out and storing the pallets provided for each shelf. The purpose is to do.

[Means for Solving the Problems] In order to achieve the above object, a pallet type storage shelf of the present invention comprises a plurality of shelves (3) provided in the vertical direction, and an article that is freely installed on each of the shelves. In a storage rack (1) having a pallet for storing or taking out, a lower pallet (21) on which frame plates (22) having a predetermined height are erected at both ends, and articles are placed from above, Removable on the frame plate of the lower pallet, an upper pallet (25) on which an article is placed from above at a predetermined distance from the lower pallet, and the frame plate and the upper pallet, respectively, A protrusion (22a) and an engagement hole (25a) for positioning the two, a lock mechanism (23, 26) provided in each of the upper and lower pallets (21, 25) for holding the stacked state, and the pallet A tiger that is placed and moves horizontally And a lifting mechanism (6) for vertically moving the traverser on the side of the shelf (3), and as a part of the shelf (3) of the storage shelf (1). And a pallet temporary storage shelf that has a release mechanism (13a) for releasing the state in which the upper and lower pallets are overlapped by the lock mechanism, and locks and holds the upper pallet (25) in a state of being separated from the lower pallet (21). (13), by controlling the operation of the traverser, the elevating mechanism, and the releasing mechanism, the upper and lower pallets (21, 25) are stacked at the same time, or the upper pallet is temporarily stored in a temporary storage shelf. And a control unit (32) for controlling the movement of only the lower pallet to the loading / unloading position of the article, at the loading / unloading position, the upper pallet is overlapped with the upper pallet and the lower pallet is In the state, the lower Palais Goods to the door is a possible out,
The upper and lower pallets are characterized by being able to be stored in the respective shelves in a state of storing different articles before and after processing.

[Operation] Since the pallet has a configuration in which the upper pallet 21 is stacked on the lower pallet 25 in two steps, the articles in different states can be stored in each pallet. The goods are
Since each is placed from the top of the pallet, it has a structure in which it can be attached to and removed from each other.

Therefore, the stacked state of the upper and lower pallets 21 and 25 is held by the lock mechanisms 23 and 26, and the release mechanism 1
Canceled at 8a. When the fixation is released by the release mechanism 18a, the upper pallet 25 is temporarily stored in the temporary storage shelf 13 and only the lower pallet 21 can be moved.

As a result, the upper and lower pallets 21, 25 are stacked,
Alternatively, only the lower pallet 25 can be automatically moved to the loading / unloading position, and articles corresponding to the upper and lower pallets 21, 25 are placed from above.

The upper and lower pallets 21 and 25 are stored in the shelf 3 while the different pallets 21 and 25 are stored in a stacked state.

[Embodiment] FIG. 1 (a) is a plan view showing an embodiment of the pallet type storage shelf of the present invention, and FIG. 1 (b) is a sectional view taken along the line II of FIG. 1 (a).

As shown in the figure, the storage shelf 1 includes a pair of left and right columns 2, and five shelf plates 3 provided at predetermined intervals in the vertical direction of the columns 2.
And a frame body 4 are roughly configured, and shelf numbers 1 to 5 are sequentially assigned from the upper shelf 3.

The shelf 3 accommodates a pallet 20 in which the articles P1 and P2 shown in the exploded perspective view of FIG. 2 are accommodated. The pallet 20 is composed of a lower pallet 21 and an upper pallet 25. The lower pallet 21 is provided with a pair of frame plates 22 standing at predetermined distances from the left and right ends, and supports the upper pallet 25.

In addition, a protrusion 22a is provided on the upper portion of the frame plate 22,
The upper pallet 25 is provided with an engagement hole 25a at a position corresponding to the protrusion 22a so that the upper pallet 25 and the lower pallet 21 are engaged and fixed at a predetermined position. Then, the lower pallet 21 and the upper pallet 25 are respectively provided with articles P2 and P1 on the side portions.
Projecting pieces 21a and 25b are erected to prevent K falling off.

Further, as shown in FIG.
A lock lever 26 is provided which is rotatable about 26a and is always biased in the direction A in the figure.
The lower protrusion 26b is engageable with the roller 23 provided on the upper side plate 22 of the lower pallet 21, and these lock levers
A lock mechanism is constituted by the roller 26 and the roller 23, and has a function of further firmly fixing and holding the above-mentioned engaged state.
Even when the lock lever 26 is in the free state, the third
It will not rotate in the A direction beyond the position shown in FIG.

Further, the shelf board 3 is arranged with a dimension not larger than the width of the lower pallet 21.

Then, as shown in FIG. 1, on the side portion of the shelf board 3, side portions 6a of the lifter 6 as an elevating mechanism each formed in a U-shape.
Is positioned, and the lifter 6 is movable in the vertical direction by the rail 7 and the guide roller 8 provided on the storage shelf 1 and the side portion 6a of the lifter 6, respectively. The lifter 6 uses a pair of left and right hydraulic cylinders 9 for raising and lowering as a drive source.

The lifter 6 is provided with a traverser 10 which is movable in the B and B'directions when seen in a plan view. The traverser 10 includes a traverser loading / unloading electric motor 11 and a transmission system 12 including a belt, a chain, a gear, and a sprocket. Thus, the pallet 20 is loaded and unloaded from the shelf board 3.

In addition, a temporary storage rack 13 is provided at the base of the support column 2 with an opening equivalent to the width of the upper pallet 25 and provided with a horizontal locking piece 13b (a front view is shown in FIG. 3). The upper pallet 25 is supported between the temporary storage shelves 13, 13. Temporary storage shelf 1
The unlocking hydraulic cylinders 13a as unlocking mechanisms for unlocking the locked state by rotating the lock levers 6 in the directions A are provided in the respective 3.

Further, a truck 15 is provided at the bottom of the storage rack 1. The carriage 15 has a structure in which a pulley 16a provided on a base 16 is movable on a rail 17, and the rail 17 is extended to a position for carrying in and carrying out articles from the pallet 20 to the outside. There is. Therefore, the pallet 20 is delivered to and from the lifter 6 by the truck 15. This dolly 15 moves using a dolly loading / unloading hydraulic cylinder 18 as a drive source. Further, the carriage 15 is provided with an elevating part 19 which is vertically movable on a base 16 by a hydraulic cylinder 19a for elevating the carriage,
Raise and lower the pallet 20.

FIG. 4 is a block diagram showing a control system of the storage rack 1.

The control unit 32 is provided in a state electrically connected to each pump drive electric motor 30 and the hydraulic solenoids 18a, 19b, 9a, 13c of the storage rack 1 by a signal system and a power system. Also, the control unit 32
Is a material information processing device 35 which may be an external personal computer or a computer higher than that, "material preparation instruction", "material one delivery information", "material delivery completion instruction", "material storage bin" Command 32 ”,“ material plate thickness, vertical and horizontal dimension information ”can be input and output interface 32a, each actuator is automatically controlled by the above information command, and designated pallet 20 is specified from storage rack 1 at specified position. To the storage shelves 1 again.

Further, the control unit 32 is provided with an interface 32b capable of inputting / outputting between a material-requiring machine (processing machine) and a "loading preparation signal", a "loading preparation signal", a "loading completion signal", and a unloading completion signal
The preparation of the upper pallet 25 and the lower pallet 21 is automatically controlled.

It also has an interlock function for safety confirmation of whether the operation based on the above information and signals is operating normally.

Then, the control unit 32 issues an operation command (operation described later) to each hydraulic solenoid in a predetermined procedure, and various commands for this operation are input from the operation unit 33 and displayed on the display terminal 34. It has become.

Next, the operation of the storage rack 1 having the above configuration will be described with reference to FIG.
A description will be given based on the operation diagram of (i).

Here, the above-mentioned storage shelf 1 is provided in the carrying-in portion of a line in which the process of carrying in, processing, and discharging the material is centered around the turret punch press, and is used as an article with the turret punch press. The work material is delivered. Furthermore, pallet 20 is upper pallet 21
It is determined in advance that the workpiece P1 after processing is accommodated and the lower pallet 25 accommodates the workpiece P2 before processing.

Then, a case will be described below in which an operation command to the operation unit 3 or a control command from the production information processing device 35 carries out the work material P2 of the lower pallet 21 accommodated in the shelf number 3. The drive system is omitted in FIG.

First, as shown in FIG. 5A, the traverser loading / unloading electric motor 11 is driven to move the traverser 10 in the B direction.

Next, as shown in FIG. 3B, the lifter lifting hydraulic cylinder 9 is moved.
Thus, the lifter 6 is lifted up to near the height of the shelf number 3 (more precisely, a position slightly below the shelf plate 3 of the shelf number 3), and the traverser loading / unloading electric motor 11 moves the traverser 10 in the B'direction.

In this state, the traverser 10 is located below the pallet 20. Therefore, by lifting the lifter 6 with the lifter lifting hydraulic cylinder 9, as shown in FIG.
20 is separated from the shelf board 3 and is placed on the traverser 10.

Then, by moving the traverser 10 in the B direction, the pallet 20 is pulled out from the shelf 3 to the outside as shown in FIG.

Next, as shown in FIG. 5 (e), the lifter 6 is lowered by the lifter lifting hydraulic cylinder 9. At this time, the upper pallet
25 is lowered to the central position of the temporary storage shelf 13.

When the traverser 10 is moved in the B'direction as shown in FIG. 5 (f), the upper pallet 25 enters the temporary storage rack 13 portion as shown in FIG. 3 (a).

Therefore, when the lifter 6 descends, only the upper pallet 25 is locked and held by the temporary storage rack 13 and the lower pallet 21 is placed on the carriage 15 as shown in FIG. State of b)). At this time, as shown in FIG. 3 (c), the lock releasing hydraulic cylinder 13a is operated to rotate the lock lever 26 in the direction A to release the engagement between the upper pallet 25 and the lower pallet 21. The lowering of the truck 15 releases the engagement state between the engagement hole 25a of the upper pallet 25 and the protrusion 22a of the lower pallet 21.

Next, as shown in FIG. 5 (h), the lower pallet 21 is moved by the carriage 15
After being placed on the top, the traverser 10 moves in the B direction.

After that, as shown in FIG. 5 (i), the dolly 15 is unloaded to the transport position on the rail 17 by the dolly loading / unloading hydraulic solenoid 18. As a result, the work material P2 stored in the lower pallet 21 is ready to be conveyed to the turret punch press in the next step.

Next, FIGS. 6 (a) to 6 (d) will describe a case where the work P2 is processed and then carried into the upper pallet 25 of the rack number 3 as the work P1.

First, after the workpiece P2 is conveyed in the state shown in FIG. 6 (a), the carriage 15 on which the lower pallet 21 is placed is again stored, and the state shown in FIG. 6 (b) is obtained.

Then, as shown in FIG. 6 (c), in the carriage 15, the lifting portion 19 is lifted by the operation of the lifting hydraulic cylinder 19a. As a result, the lower pallet 21 and the upper pallet 25 are stacked, and the protrusion
22a engages with the engagement hole 25a to position and hold the stacked state of the upper pallet 25 and the lower pallet 21. Further, the locked state is further ensured by the lock lever 26 and the roller 23. The operation diagrams up to this stacking are shown as the states in FIGS. 3 (c) to (a).

After being stacked in this way, the upper and lower pallets 25 are lifted up and down until they are separated from the temporary storage shelves 13 (the state of FIG. 3 (a)).
19 rises.

After this, as shown in FIG. 6 (d), the carriage 15 is again railed.
17 The upper pallet 25
The processed material P1 after processing can be stored on the top.

The workpiece P2 stored in the lower pallet 21 can be delivered to the transfer position by the series of operations in FIG. 5 described above, and the workpiece P1 can be stored in the upper pallet 25 by the series of operations in FIG.
Can be stored.

After that, in order to store the pallet 20 in the stacked state of the upper pallet 25 and the lower pallet 21 in the shelf number 3 portion again, the above operation may be reversed. However, it is desirable to shift the state of FIG. 6 (d) to the state of FIG. 5 (g) to (a), and the temporary storage state of the upper pallet 25 at the temporary storage shelf 13 portion (FIG. 5 (h)). , (I), FIG. 6 (a)-
The state (c)) can be omitted.

In the above-mentioned embodiment, the pallet 20 has the two-tier structure consisting of the upper pallet 25 and the lower pallet 21, but it may have three or more tiers, and it is only necessary to provide a plurality of temporary storage shelves 13 which are temporary storage locations. Since each pallet can be temporarily stored individually, all the articles in the pallet can be easily loaded and unloaded to the transport position.

Further, in the above-described embodiment, the pallet delivery position is the transport position to the next process in the automation line, but it may be a configuration in which the pallet is simply delivered and can be applied to various articles.

[Effect of the Invention] According to the pallet type storage shelf of the present invention, since the pallet is composed of a pair of upper and lower pallets that are stacked, it is possible to store articles in different states in each pallet when loading and unloading articles. Yes, they can be moved at the same time.

Then, the storage and removal of the articles from the pallets stored in each shelf can be carried to a predetermined loading / unloading position, which has the effect of improving the work efficiency.

Further, since the pair of upper and lower pallets constituting the pallet unit are fixed to each other by the lock mechanism, the pallets are not displaced during the loading and unloading of the pallets, and the automation of the transportation can be easily achieved.

In addition, the pallets stacked vertically are unlocked from each other by the unlocking mechanism, and the upper pallets are stored in the temporary storage shelf. Items can be placed on the upper pallet from the top, and when released, only the lower pallet is moved to the loading / unloading position, and items can be placed on the lower pallet from the top, so that a single loading / unloading position It becomes possible to automatically place or remove the articles on the pallets.

The upper and lower pallets that can store these different articles are stored on the shelves in a stacked state. Therefore, according to the present apparatus, the same articles before and after processing can be stored in the upper and lower pallets, and these upper and lower pallets can be stored in a certain shelf.

[Brief description of drawings]

1 (a) is a plan view showing a pallet type storage shelf of the present invention, FIG. 1 (b) is a sectional view taken along the line I-I of FIG. 1 (a), and FIG. 2 is an exploded view showing a pallet. Perspective view, FIG. 3 (a),
(B) and (c) are operation views seen from the front showing the separated state of the pallets, FIG. 4 is a block diagram showing the control system, and FIGS. 5 (a) to 5 (i) are respectively. Fig. 6 (a) -Fig. 6 (a)-
(D) is an operation diagram until the articles are stored in the upper pallets. 1 ... storage shelf, 3 ... shelf board, 6 ... lifter, 10 ... traverser,
13 ... Temporary storage rack, 20 ... Pallet, 21 ... Lower pallet, 23 ...
Roller, 25 ... Upper pallet, 26 ... Lock lever, 32 ... Control part.

Claims (1)

[Scope of utility model registration request] 1. A storage shelf (1) comprising a plurality of shelves (3) provided in a vertical direction, and a pallet that is freely installed in each of the shelves and in which articles are stored or taken out. A lower pallet (21), on which a frame plate (22) having a predetermined height is erected, and articles are placed from above, and a frame plate of the lower pallet, which is detachable and is separated from the lower pallet by a predetermined distance. The upper pallet (25) on which the article is placed from above at the upper position, the protrusions (22a) and the engagement holes (25a) provided on the frame plate and the upper pallet, respectively, for positioning them, Lock mechanism (23, 26) provided on each pallet (21, 25) for holding the stacked state, a traverser (10) on which the pallet is placed and horizontally moved, and the traverser on the shelf. Move vertically on the side of (3) An elevating mechanism (6) and a releasing mechanism (13a) that is provided as a part of the shelf (3) of the storage shelf (1), and that releases the overlapping state of the upper and lower pallets by the lock mechanism, The pallet temporary storage shelf (13) for locking and holding the upper pallet (25) in a state where the upper pallet (25) is separated from the lower pallet (21), the operation of the traverser, the elevating mechanism, and the releasing mechanism to control the upper and lower parts. Each pallet (21, 25) is stacked, or at the same time, or with a control unit (32) for controlling the upper pallet to be temporarily stored in a temporary storage shelf and moving only the lower pallet to the article loading / unloading position. At the loading / unloading position, articles can be loaded / unloaded to / from the upper pallet in a state where the upper and lower pallets are overlapped, and to / from the lower pallet in a state of only the lower pallet,
A pallet type storage shelf characterized in that the upper and lower pallets can be stored in the respective shelves in a state of storing different articles before and after processing.