JP4428629B2 - Automatic tire warehouse and lifting platform - Google Patents

Description

  The present invention relates to an automatic warehouse for tires, particularly uncured tires that are easily deformed, and a lifting platform used in an automatic warehouse.

  2. Description of the Related Art A pallet system and a palletless system are known as an elevator platform type automatic warehouse for storing, receiving, and unloading a finished tire and a semi-finished tire such as a green tire.

For example, in a conventional pallet type automatic warehouse, as shown in FIG. 5, a traveling path of a crane guide is provided at the center, and a plurality of multistage shelves 2 for storing tires 9 are provided on both sides of the traveling path. A slide fork supported by the rack 3 and the crane guide so as to be movable up and down is provided.
The slide fork can lift the tire placed on the pallet in each shelf together with the pallet, and can transport the tire along the traveling path to, for example, the exit port.

  However, in this pallet system, tires are placed on the pallet and transported together with the pallet. Therefore, the pallet needs to be put in and out of the shelf according to the loading and unloading of the tire. For example, a guide mechanism for sliding the pallet is necessary. There is a problem that not only the cost increases due to a certain reason, but also the operation is complicated and the efficiency is not increased.

Therefore, there is also known a palletless type automatic tire warehouse in which a pallet is eliminated and a tire is stored in a shelf or directly taken in and out of the shelf (see Patent Document 1).
For example, as shown in FIG. 5, a pallet-less automatic tire warehouse is provided with a slide plate 206 for placing a tire on a shelf for storing tires, and on a crane guide 204 that travels along a travel path 208. The push-pull device 210 that pushes and pulls the slide plate 206 is attached so as to be movable up and down.

A tire support surface is formed on the main body of the push-pull device 210. For example, a tire taken out from the slide plate 206 is placed on the tire support surface and moved to the exit port along the travel path.
The tire is taken out from the slide plate 206 or placed on the slide plate by a handling device 212 provided on the crane guide 204 so as to be movable up and down. In order to clamp the tire 209 on the slide plate 206 drawn out on the traveling road, the handling device 212 is provided with L-shaped claws 213 facing outward at both lower ends so as to be openable and closable in the horizontal direction. When the handling device 212 descends from directly above the tire 209 and reaches the inner diameter portion of the tire 209, the claw 213 expands outwardly so that the tire 209 can be clamped.
JP 2002-68408 A

In this conventional automatic palletless warehouse, tires are transported one by one at the time of loading and unloading. To increase the efficiency, the traveling speed of the crane guide or the lifting and lowering of the slide fork and the moving speed of the fork However, in order to perform stable running or safe and stable operation, the speed increase is naturally limited. Moreover, although there are generally known methods such as a twin fork type, there is a problem that the cost becomes high.
The present invention has been made in view of the above-described conventional problems, and its purpose is to increase the number of tires that can be handled at a time with a simple configuration in an automatic warehouse, thereby shortening the loading / unloading time and To improve efficiency.

The invention of claim 1 is a palletless type automatic tire warehouse having a rack made up of a number of shelves for storing tires, the elevator being movable between the shelves, and the shelf of tires on the elevator A fork that is movably attached so as to be able to be inserted into and removed from the vehicle, and a tire holding mechanism that is attached to the hoisting table so as to be movable up and down. The tire holding mechanism places the other tire on the fork. And a holding means for holding the tire placed on the fork in a raised position, and the lifting platform simultaneously receives the tire held by the tire holding mechanism and the tire placed on the fork. It is a tire automatic warehouse characterized in that it can be conveyed from the mouth to the exit .
According to a second aspect of the present invention, in the automatic tire warehouse according to the first aspect, the through groove that allows the fork to pass through the shelf so that the tire on which the fork is placed can be scooped up from below. This is an automatic tire warehouse.
The invention of claim 3 is a lifting platform that can be used in a palletless type automatic tire warehouse equipped with a rack composed of a number of shelves for storing tires, and moves so that tires can be taken in and out of the shelves. A fork attached freely and a tire holding mechanism attached so as to be raised and lowered along a lifting platform, the tire holding mechanism being arranged on the fork so that the fork can place another tire on the fork. It has holding means for holding the mounted tire in the raised position, and the lifting platform is capable of transporting the tire held by the tire holding mechanism and the tire placed on the fork simultaneously from the entrance to the exit. a lifting platform which is characterized in that there.
According to a fourth aspect of the present invention, in the lifting platform according to the third aspect, the tire holding mechanism includes an engagement means that can be expanded outward so as to engage with an inner diameter portion of the tire. It is a lifting platform.
According to a fifth aspect of the present invention, in the lifting platform according to the fourth aspect, the tire holding mechanism is configured by a claw for gripping a tire.

In general, automatic warehouses are generally handled by increasing the speed of each axis of traveling, lifting, and forks to increase efficiency, but according to the present invention, the inside of the automatic warehouse is from the entrance to the exit. Since two tires can be supported by a movable lifting platform, the number of handling in one run can be increased, and the number of runs up to the transfer point of loading / unloading can be suppressed to improve efficiency. .
In other words, the load (tire) scooped from the shelf with a fork is usually placed on the fork and handled to the exit point, but in the present invention, it is replaced with a tire gripping mechanism (chuck mechanism) installed on the lifting platform. Thus, it is possible to go to the next tire, and at the same time, the number that can be processed can be increased, and the efficiency of the entire warehouse can be improved.

Embodiments of the present invention will be described with reference to the accompanying drawings.
FIG. 1 is a side view of the automatic warehouse for tires according to the present embodiment.
The present invention will be described with reference to an automatic warehouse for unvulcanized tires. In order to accommodate a large amount of unvulcanized tires in the automatic warehouse 10 for unvulcanized tires, a large number of racks are formed in multiple stages, and a shelf plate 22 is arranged in each rack.
As shown in FIG. 1, a traveling path 50 of a lifting platform (stacker crane) 30 is provided in the center, and a plurality of multi-stage shelf boards 22 for storing unvulcanized tires GT are provided on both sides of the traveling path 50. A rack 20 is provided. The elevator 30 can be raised and lowered along the elevator mast 34, and a fork 32 for moving the uncured tire GT in and out of the shelf 22 is movably supported on the elevator 30.

  A tire gripping mechanism 40 for holding the unvulcanized tire GT is attached to the lifting platform 30 so as to be movable up and down, and the tire gripping mechanism 40 is used to clamp the unvulcanized tire GT on the fork 32. In addition, L-shaped claws 42 facing outward are provided at both lower ends so as to be openable and closable in the horizontal direction. When the tire gripping mechanism 40 descends from directly above the unvulcanized tire GT and reaches the inner diameter portion of the tire GT, the claw 42 moves outward and the L-shaped claw 42 moves outward. Can be expanded to clamp the unvulcanized tire GT.

FIG. 2 is a plan view of the shelf 22 provided on the rack 20 in the automatic warehouse.
Since unvulcanized tires are easily deformed and the bead portion is crushed by its own weight when stored on a flat pallet, the shelf 22 has a substantially annular convex portion 22a as shown in the figure for the purpose of improving the stability of quality. It is provided in a mortar shape, and has a cross-shaped (FIG. 2A) or Y-shaped (FIG. 2B) notch or through groove 24 on its bottom surface. This notch 24 becomes a passage when the fork 32 of the lifting platform enters and exits the shelf board 22 and allows unvulcanized tires to be loaded and unloaded in a palletless state.

  The fork 32 of the lift 30 can lift and hold the unvulcanized tire GT placed on the shelf 22 in each shelf and move to the lift 30 in that state.

FIG. 3 is a plan view of the automatic warehouse for unvulcanized tires described above.
The lifting platform 30 is disposed so as to be able to travel on a rail 52 laid on the travel path 50 between the warehousing port and the warehousing port, between racks provided with a shelf plate 22 on which the unvulcanized tire GT is placed.
With this configuration, the lifting platform 30 stops after moving to the horizontal position of the target shelf 22, and can move up and down along the lifting platform mast 34 at that position to take in and out unvulcanized tires.

  In particular, in the present embodiment, the tire gripping mechanism 40 is lowered, and a substantially L-shaped claw 42 provided at the lower end thereof is put into the inner diameter of the unvulcanized tire GT placed on the fork 32. Then, the tire is clamped and lifted, the tire GT is removed from the fork 32, and the empty fork 32 can freely handle another tire. For example, two tires can be simultaneously transported to the exit port by placing another removed tire on a fork. Note that the mechanism for holding the tire is not limited to the claw for holding, but is arbitrary as long as it can be engaged and held.

FIG. 4 shows that the unvulcanized tire GT is taken out from the shelf plate 22, lifted while the taken tire GT is gripped by the gripping mechanism 40, the fork 32 is emptied, and a new tire is placed on the fork. It is operation | movement explanatory drawing explaining a series of operation | movement to set.
That is, FIG. 4A schematically shows a state in which the unvulcanized tire GT placed on the shelf board 22 is scooped up from the bottom as indicated by the arrow Y with the fork 32 attached to the lifting platform 30 and is carried on the lifting platform 30. Is shown. In this state, the tire gripping mechanism 40 is in its upper end position.
Next, the tire gripping mechanism 40 is lowered to grip the tire GT on the fork 32 (FIG. 4B), and then the tire gripping mechanism 40 is lifted while gripping the tire GT. At the same time, the lift 30 and hence the fork 32 are then lowered in preparation for the removal of a new unvulcanized tire from the shelf 22 (FIG. 4C). After descending a predetermined distance, the fork 32 scoops up a new tire GT from the lower side of the shelf board 22 (FIG. 4D) and carries the tire onto the lifting platform 30, thus two on the lifting platform 30. The unvulcanized tires are held separately at the top and bottom.

As described above, the embodiment of the present invention has been described by taking the case of taking out from the shelf board of the unvulcanized tire as an example, but the same applies to the case where the tire is placed on the shelf board. In addition, the change of the tire on the fork to the gripping mechanism may be completed so long as the lifting platform is completed before moving to the next shelf, so that the operation is not hindered.
In addition, at the entry / exit point, it is necessary to change the tire while it is stopped. However, changing the tire is a simple operation of simply lowering the gripping mechanism and gripping and lifting the tire with the claws. Compared to the case of processing one by one, processing can be performed without a large time loss, and the processing capacity of the entire warehouse can be improved.
Furthermore, although the above description has been described on the assumption that the automatic tire warehouse handles unvulcanized tires, the present invention is of course applicable to automatic warehouses for finished tires other than unvulcanized tires, for example. It is.

It is a side view of the automatic warehouse for tires of this invention. It is a top view of a shelf board. It is a top view of the automatic warehouse shown in FIG. It is a figure for demonstrating the handling of the tire in a tire automatic warehouse. It is a side view of the conventional tire automatic warehouse.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Automatic warehouse, 20 ... Rack, 22 ... Shelf board, 30 ... Lifting stand, 32 ... Fork, 40 ... Tire gripping mechanism, 50 ... Traveling path,

Claims (5)

A palletless tire automatic warehouse equipped with a rack made up of a number of shelves for storing tires,
A lifting platform that can move between the shelves, a fork that is movably attached to the lifting platform so that tires can be taken in and out of the shelf, and a tire holding mechanism that is movably attached to the lifting platform,
The tire holding mechanism has holding means for holding the tire placed on the fork in a raised position so that the fork can place another tire on the fork, and the lifting platform is the tire A tire automatic warehouse characterized in that a tire held by a holding mechanism and a tire placed on the fork can be conveyed simultaneously from a warehousing port to a warehousing port . In the automatic tire warehouse according to claim 1,
An automatic tire warehouse, wherein a through groove is provided on the shelf to allow the fork to pass so that the tire on which the fork is placed on the shelf can be lifted from below. A lifting platform that can be used in a palletless tire automatic warehouse equipped with a rack composed of a number of shelves for storing tires,
Comprising a fork the mounted movably to allow loading and unloading of the shelf of the tire, the tire holding mechanism mounted vertically movably along the lifting table, the tire holding mechanism, the fork said other tire A holding means for holding the tire placed on the fork in a raised position so that the tire can be placed on the fork; and the lifting platform is placed on the tire held by the tire holding mechanism and the fork. The elevator is capable of transporting tires simultaneously from the entrance to the exit . In the lifting platform according to claim 3,
The tire holding mechanism includes an engaging means that can be extended outward so as to engage with an inner diameter portion of the tire. In the lifting platform described in claim 4,
The tire holding mechanism is composed of a claw for gripping a tire.

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