JPH0367807A - Automatic warehouse - Google Patents

Abstract

PURPOSE:To simplify the structure of an automatic warehouse for plate materials or the like by providing a carrying-in and -out device on which an elevating body having a transfer device that is moved back and forth toward a storing rack is mounted, along the storing rack so as to be capable of being traveled. CONSTITUTION:A carrying-in and -out device B is provided so as to be adjacent to a storing rack A and to be capable of being traveled. To this carrying-in and -out device B, an elevating body 11 being elevated or lowered by a lift motor 29 is provided. And, a transfer device 12 is provided to the elevating body 11 for taking in or out a pallet 34. By this constitution, the carrying-in and -out device B is moved back and forth to the storing rack A by means of a motor 19, and the elevating body 11 is elevated or lowered by a lift motor 29 so as to be moved to a prescribed rack. By driving the endless chain of the transfer device 12, the pallet 34 is taken in or out by the engagement of the pallet engaging part and the chain engaging part.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an automatic warehouse for loading and unloading cargo such as board materials on storage shelves.

[Conventional technology]

An automated warehouse as shown in Japanese Utility Model Application Publication No. 60-72404 is known.

In other words, a pallet is pushed into a storage shelf so that it can be freely pulled out, a support is provided along the storage shelf so that it can be raised and lowered, and a claw member is movably provided on the support, and the claw member is engaged with the pallet. This is an automated warehouse that moves pallets by pulling them out from storage shelves and picking them up, or pushing them in and storing them.

[Problem to be solved by the invention]

In such an automated warehouse, pallets are placed on storage shelves,
Although it is possible to pick up the pallets, it is not only difficult to place and take out the pallets on the support bases, but also when multiple storage shelves are installed in parallel, a support base must be provided for each storage shelf, which is costly. Becomes high.

Therefore, an object of the present invention is to provide an automatic warehouse that can solve the above-mentioned problems.

[Means and effects for solving the problem] A loading/unloading device is provided so as to be movable along the storage shelf, a lifting body is installed on the frame body of the loading/unloading device so as to be able to move up and down, and a transfer device is attached to the lifting body. The pallet can be pushed into and pulled out from the storage shelf using the transfer device, and the pallet can also be placed on and taken out from the transfer device, and the pallet can be pushed into the adjacent storage shelf by running the loading/unloading device. , an automated warehouse that can be retracted.

〔Example〕

As shown in FIGS. 1, 2, and 3, an automatic warehouse for plate materials is composed of storage shelves A and a loading/unloading device B.

The storage shelf A is provided with front and rear one side vertical columns 2, 2 and front and rear other side vertical columns 3°3 on the left and right of the front and rear intermediate vertical columns 1, 1, and both sides of the front and rear intermediate vertical columns 1, 1. Between and front and rear vertical pillars 2, 2
A plurality of pallet guide rails 4 are hung horizontally at intervals in the vertical direction between the other side and between one side of the front and other side vertical columns 3, 3, and the pallet guide rails 4 are straddled between adjacent pallet guide rails 4. A traveling guide rail 5 is installed horizontally between the upper portions of each vertical column.

The loading/unloading device B consists of a main body frame 10, an elevating body 11, and a transfer device 12, and the main body frame 10 is connected to a lower frame 1.
3 and the upper frame 14 as a pair of left and right vertical frames 15.15
A driving wheel 6 and a driven wheel 17 connected to the lower frame 13 are connected to a traveling rail 18 laid along the storage shelf A.
By driving the drive wheels 16 with the travel motor 19, the entire loading/unloading device B is moved from side to side along the storage shelf A.
The planar shape becomes a square frame with the front and rear frames 22°23,
The holes ('I' + 4) provided on the left and right frames 20 and 21
' 24 is provided with a pair of front and rear guide rollers 25, and the guide rollers 25 are in contact with the front and rear surfaces of the vertical frame 15, so that the elevating body 11 can move up and down along the vertical frame 15, and the elevating body 11 and the main body frame 10 are connected to each other. A lifting device 26 is provided throughout.

The lifting device 26 includes a movable sprocket 27 provided on the mounting member 24 and a fixed sprocket 28 provided on the upper frame 14.
, a driving sprocket 31 driven by a lift motor 29 via a reducer 30, and a pair of chains 32.
is connected to the upper frame 14 to form a movable sprocket 27, a fixed sprocket 29, a driving sprocket 31, and an elevating body 1.
The sprocket 31 is connected to the lower frame 13 via the sprocket 33 provided in the
By rotating forward and backward, the elevating body 11 is raised and lowered.

Note that an upper guide member 33 that moves along the running guide rail 5 is provided on the upper frame 14 of the main body frame 10 to guide the main body frame 10 so as not to swing during running.

The transfer device 12 stores and pulls out a special pallet 34 for placing board materials in the storage shelf A, and the board materials 35 are placed on the special pallet 34 by the wood 36 and the skid 3.
7, and the plate material 35 is placed by the load positioning rod 38.
The pallet 34 is provided with a pair of left and right rollers 39.

Next, details of each part will be explained.

As shown in FIGS. 4 and 5, the pallet guide rail 4 has a long rail 42 and a short rail 43 provided at intervals in the longitudinal direction on a horizontal piece 41 of an L-shaped rail body 40. , roller guide surface 4a of pallet guide rail 4
has a recess 4 into which the roller 39 of the pallet 34 is recessed.
4 is formed, and the rail main body 40 is reinforced with a reinforcing material 45.

As shown in FIGS. 4 and 5, the pallet 34 is connected to a plurality of horizontal members 46 in a lattice shape by connecting members 447, and a pair of front and rear connecting members 48 are connected to the U-shaped end connecting members 48 at both left and right ends. rollers 39, 39 and a pair of front and rear side rollers 49, 49 are provided, and a pair of left and right front hooks 50. A rear hook 51 is provided to protrude downward, and a stopper piece 52 is provided at a rearward position on the lower surface of the pallet 34, and rollers 39 provided on the left and right sides of the pallet 34 are provided on the roller guide surfaces 4a of the left and right pallet guide rails 4. By rolling along the storage shelf A, the pallet 34 can be stored in or pulled out from the storage shelf A, and when the pallet 34 is stored in the storage shelf A, the seven rear rollers 39 move into the recess 44. The pallet 34 is held so that it does not move from the storage shelf A due to vibrations, etc., and for some reason the roller 39 is inserted into the recess 44.
If the pallet 34 attempts to move outward from the storage shelf A by climbing over the storage shelf A, the stopper piece 52 comes into contact with the vertical surface of the recess 44, that is, the end surface 43a of the short rail 43, and prevents the pallet 34 from moving outward any further. ing.

The transfer device is constructed as shown in FIGS. 6 to 10.

In other words, a pair of left and right connecting plates 60 are horizontally suspended between the front and rear frames 2223 of the elevating body 1], a flat beam 61 is mounted on the connecting plate 60, and a pair of left and right linear rails are mounted on the beam 61. 62, 62 are provided in parallel in the front-rear direction, and along the linear rails 62, 62, a front bracket 63, a rear bracket 64, and a movable plate 6 are installed.
5 are provided so as to be freely movable back and forth via linear bearings 66, and the front bracket 63 and the rear bracket 6
4 and the movable plate 65, a front bracket 63 supports a driven sprocket 68, and a rear bracket 64 supports a drive shaft 70 having a drive sprocket 69. An endless chain 71 is wound around the driving sprocket 69 and the driven sprocket 68.

The left and right movable plates 65, 65 are integrally connected by a connecting beam 72, and the output side of a chain drive motor 73 provided on the lower surface of this connecting beam 72 is connected to a reducer 74, a torque limiter 75, and a chain transmission mechanism 76. A pair of left and right sprockets 7 are connected to the rotating shaft 77 through the rotating shaft 77.
Each sprocket 78 is connected to a sprocket 80 provided on the drive shaft 70 through seven drive chains, and when the chain drive motor 73 is driven, the left and right endless chains 71 are synchronized. It is designed to be rotated.

The left and right movable plates 65 are each provided with a nut member 8, and this nut member 81 connects the beam 61 and the connecting plate 60.
They protrude downward from long holes 61a and 60a formed in the longitudinal direction, and are screwed into feed screw rods 82, respectively.

A chain shift motor 84 is provided on a vertical plate 83 provided on the lower surface of one of the connecting plates 60, and its output side is connected to a rotating shaft 86 via a transmission mechanism 85 using a timing belt. are connected to the input sides of transmission mechanisms 87 provided on the left and right connecting plates 60, respectively, and the transmission mechanisms 8
The output side of 7 is out of phase by 90 degrees with respect to the input side, and the feed screw rod 82 is connected to the output side, and when the chain shift motor 84 is driven, the left and right feed screw rods 82 are synchronized and corrected. It rotates in the opposite direction, thereby causing the left and right endless chains 71 to move forward and backward in synchronization.

A pallet support roller 88 is provided on each of the front bracket 63 and the rear bracket 64, and the pallet support roller 88 protrudes slightly upward from the upper surface of the endless chain 71.

As shown in FIGS. 11 and 12, the endless chain 71 is a multi-row chain in which four rows of single-row endless chains 93 are connected, each consisting of a pair of links 90 and 90 connected by a pin 92 via a roller 91. A roller chain is formed by removing a plurality of links 90 and rollers 91 at two longitudinally spaced locations in the central two rows of single-row endless chains 93 and 93 to form a space 94. A pair of long rollers 95 are attached with pins 92 to form a pair of hook engaging recesses 96, and the distance between the pair of hook engaging recesses 96, 913 is equal to the distance between the front and rear hooks 50 provided on the pallet 34. The distance is .51 and the distance between the roads is -.

Next, the operation of pulling out the plate material 35 from the storage shelf A and picking it up will be explained.

(2) The plate material 35 is placed on a pallet 34, and is stored in the storage shelf A with the rollers 39 of the pallet 34 placed on the pair of pallet guides 4, 4 of the storage shelf A.

At this time, the rear roller 39 fits into the recess 44 formed in the roller guide surface 4a of the pallet guide rail 4, and
It is positioned and stored in a predetermined position.

■ The main body frame 10 of the loading/unloading device B is connected to the running rail 18.
The moving body 11 is raised and lowered to face the pallet 34 from which the transfer device 12 is pulled out as shown in FIG. In other words, the upper surface of the endless chain 71 of the transfer device 12 is connected to the front and rear hooks 50° 51 of the pallet 34.
The position is set downward by a distance p that does not dry up.

■ The chain shift motor 84 of the transfer device 12 is driven to move the left and right endless chains 71 forward toward the storage shelf A, and the endless chains 71 are moved as shown in FIG. 13(b).
The hook engaging recess 96 is positioned directly below the rear hook 51 of the pallet 34.

■ Raise the elevating body 11 of the loading/unloading device B to move the loading/unloading device 12
The pallet support roller 88 is brought into contact with the lower surface of the pallet 34 and lifted upward as shown in FIG. It is fitted into the rear hook 51 of the pallet 34.

■ Drive the chain drive motor 13 of the transfer device 12 to drive the endless chain 71 in the direction of the arrow to move the pallet 3
4 from the storage shelf A via the rear hook 51.

At this time, the rear hook 51 contacts the long roller 95 of the hook engaging recess 96 of the endless chain 71, and the pallet 34 is moved along one roller 39 or the roller guide surface 4a of the pair of pallet guide rails 4. Since it rolls, the pallet 34 can be smoothly pulled out from the storage shelf A by driving the endless chain 71 with a light force.

■ After pulling out approximately half of the pallet 34 using the endless chain 71, drive the chain shift motor 84 of the transfer device 12 in the opposite direction to the above-mentioned direction to remove the endless chain 71.
The endless chain 71 is rotated while the pallet 34 is moved backward and returned onto the lifting body 11, and the pallet 34 is placed on the endless chain 71 as shown in FIG. 13(d). It is supported on the elevating body 11 and picked up.

At this time, the front and rear hooks 50.51 of the pallet 34 fit into the pair of hook engaging recesses 96.96 of the endless chain 71, and are supported so as not to move back and forth and left and right.

Next, the pallet 34 supported by the elevating body 11 is placed on the storage shelf A.
Explain the operation of pushing the cargo into the container and placing it there.

(2) As shown in FIG. 14(a), the elevating body 11 is raised and lowered to face the pallet guide rail 4 on which the pallet 34 is placed.

■ Drive the chain drive motor 73 of the transfer device 12 to rotate the endless chain 71 in the opposite direction to the first
4. Push the pallet 34 onto the pallet guide rail 4 of the storage shelf A via the roller 39 as shown in FIG. 4(b).

■ When the pallet 34 is pushed in to a certain extent, the chain shift motor 84 is driven and the endless chain 71 is moved.
is moved forward toward the storage shelf A as shown in FIG. 14(c), and the pallet 34 is completely pushed onto the pallet guide rail 4.

■ Lower the elevating body 11 and move the endless chain 71 to the 14th
It is lowered as shown in Figure (d) to disengage the hook engaging recess 96 from the rear hook 51, and at the same time, the roller 39 is dropped into the recess 44 of the roller guide surface 4a.

■ Drive the chain shift motor 84 of the transfer device 12 to move the endless chain 71 backward away from the storage shelf A, and move the endless chain 71 as shown in FIG. 14(e).
1 is returned onto the elevating body 11, and the endless chain 71 is rotated to bring the pair of hook engaging recesses 96 into predetermined positions.

In the above embodiment, the transfer device 12 is an endless chain 71.
The hook engaging recess 96 of the pallet 34 is engaged with the hook of the pallet 34 to push the pallet 34 along the pair of pallet guide rails 4, 4 in the storage shelf A and pull it out. A hook may be provided to be movable toward the storage shelf, and the retaining hook may be engaged with and disengaged from the pallet to push it into the storage shelf or pull it out.

〔Effect of the invention〕

By raising and lowering the elevating body 11 along the main frame 10 of the loading/unloading device B, the transfer device] 2 is made to face the pallet storage section of the storage shelf, and the pallet 34 is pushed into the pallet storage section by the transfer device 12 to load the load. Since the pallet is placed on the transfer device 12 and the pallet is taken out, the work is simplified.

In addition, since the loading/unloading device B runs along the storage shelf A,
Since pallets can be pushed into and pulled out from a plurality of adjacent storage shelves A, only one loading/unloading device B can be used, and costs can be reduced.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and FIGS. 1, 2, and 3 are a front view, side view, and cross-sectional view of an automated warehouse, FIG. 4 is a perspective view of storage shelves and pallets, and FIG. 5 Figure 6 is a side view of the pallet stored in the storage shelf, Figure 6 is a perspective view of the transfer device, and Figure 7 is a side view of the pallet stored in the storage shelf.
The figure is a plan view, Figure 8 is a side view, Figure 9 is a front view, and Figure 10 is a front view.
The figure is a sectional view taken along the line X-X in Figure 7, Figures 11 and 12 are a plan view and side view of the endless chain, and Figures 13 (a) to (d).
14) is an explanatory diagram of the loading operation, and FIGS. 14(a) to 14(e) are explanatory diagrams of the loading operation. A is a storage shelf, B is a loading/unloading device, ]0 is a frame body, ]1
12 is an elevating body, and 12 is a transfer device.

Claims (1)

[Scope of Claims] A storage shelf A having a plurality of pallet storage units spaced apart vertically, and a transporting/unloading device B movably provided adjacent to the storage shelf A, with the loading/unloading device B being the main unit. An automatic warehouse comprising a frame 10 with an elevating body 11 that can be raised and lowered, and a transfer device 12 that moves pallets toward storage shelves on the elevating body 11.