JP4898490B2 - Automatic warehouse and goods receipt method - Google Patents

Description

  The present invention relates to an automatic warehouse equipped with a stacker crane that can simultaneously deliver a plurality of packages to a storage unit of a storage shelf, and a storage method.

  The automatic warehouse is provided with a plurality of storage shelves arranged in a plurality of rows, a stacker crane provided between rows of the storage shelves, and a delivery of goods to and from a storage unit of the storage shelves; The receiving entry station and the stacker crane are provided with a delivery station for delivering the package (see, for example, Patent Document 1).

  The automatic warehouse is configured so that a plurality of packages can be simultaneously transferred by the stacker crane, and a plurality of packages can be stored in each storage unit of the storage shelf. Improve processing capacity. In addition, when a storage station is provided corresponding to each storage shelf, the filling rate of a storage shelf becomes high depending on the amount of supply of the storage to each storage station, whereas a storage space for another storage shelf. When the filling rate of the cargo is reduced, the filling rate of the luggage in the entire automatic warehouse may be lowered. Therefore, in order to increase the packing rate of all the storage shelves, all the packages are supplied to one storage station, and the storage station distributes and stores the packages to each storage shelf. Yes.

For example, in an automatic warehouse that stores steel bundles as luggage, production facilities composed of a plurality of, for example, four production lines are directly connected to one storage station set for a plurality of storage shelves. Steel bundles are supplied to the receiving station one by one in order of speed. Then, while sorting the luggage to each storage shelf, the corresponding stacker crane is simultaneously transferring a plurality of steel material bundles to the storage unit in the order of warehousing with respect to the warehousing station.
JP 2001-225906 A

  The shipping destination of the steel bundles manufactured in each manufacturing line is different for each manufacturing line. In the state where the steel bundles are supplied to the warehousing station in the early order, the steel bundles with different shipping destinations are randomly entered into the warehousing station. Supplied. For this reason, when a plurality of steel material bundles are simultaneously transferred to the storage unit by the stacker crane in the order of receipt with respect to the warehousing station, the steel material bundles of different shipping destinations are often stored in one storage unit. In this case, when the steel material bundle is delivered by the stacker crane, the so-called replacement work of transferring the steel material bundle not to be delivered to another storage unit in advance is increased. Also, the steel material bundle to be delivered and the non-target steel bundle are simultaneously transferred to the delivery station by a stacker crane, and only the target steel material bundle is carried out at the delivery station, and the remaining steel product bundle that is not subject to storage is stored in the storage unit. The so-called re-entry work to be returned also increases, resulting in a problem that the delivery efficiency decreases.

  That is, the present invention has been proposed in order to suitably solve these problems in view of the problems inherent in the automatic warehouse and the warehousing method according to the prior art, and reduces the work of replacement and re-entry, An object of the present invention is to provide an automatic warehouse and a warehousing method capable of improving the delivery efficiency.

In order to overcome the above problems and achieve the intended purpose, an automatic warehouse of the invention according to claim 1 of the present application,
A stacker crane having a plurality of storage units arranged in parallel in the longitudinal direction and the vertical direction is arranged in parallel, and a plurality of loads are stored for each storage unit by a stacker crane provided between the storage shelf rows and moving along the storage shelves. In an automated warehouse that can deliver
A plurality of platforms that are spaced apart in the width direction intersecting the moving direction of the stacker crane, and a plurality of loads are placed in parallel in the width direction;
A storage cart for transferring one by one in order from the position on the other side to the position on the one side with respect to the table located at one end in the width direction;
A plurality of traversers that move in the width direction between the pedestals adjacent in the width direction and deliver the load received from the pedestal on one side to the pedestal on the other side;
A plurality of loads placed in parallel in the width direction, arranged above each of the traversers, and a standby unit capable of receiving the load by the corresponding stacker crane,
The traverser is configured to be able to select and deliver a received package to a corresponding standby unit or a table on the other side.
According to the first aspect of the present invention, it is possible to transfer work to the storage shelf with the stacker crane after collecting the packages of the same shipping destination in the standby unit, so that the work efficiency with the stacker crane can be improved. Further, by storing the packages at the same destination in the storage unit of the storage shelf, it is possible to reduce the work of replacement and re-entry and improve the output efficiency.

In order to overcome the above-mentioned problems and achieve the intended purpose, the automatic warehouse storage method of the invention according to claim 2 of the present application,
A stacker crane having a plurality of storage units arranged in parallel in the longitudinal direction and the vertical direction is arranged in parallel, and a plurality of loads are stored for each storage unit by a stacker crane provided between the storage shelf rows and moving along the storage shelves. In an automated warehouse that can deliver
A plurality of traversers movable in the width direction crossing the moving direction of the stacker crane are arranged in series in the width direction,
If the package placed on the receiving side of the traverser is different from the shipment destination of the next package to be transferred to the receiving side, it is placed on the receiving side. So that the next package can be transferred to a stand on the delivery side with the traverser.
When a package with the same shipping destination as the package placed on the standby unit is transferred to the receiving stage, the package is transferred to the standby unit with a traverser so that the package with the same shipping destination is transferred to the standby unit. Summarized in
A plurality of packages placed on the standby unit are transferred to the storage unit by the stacker crane.
According to the second aspect of the present invention, it is possible to transfer work to the storage shelf with the stacker crane after collecting the packages of the same shipping destination in the standby unit, so that the work efficiency with the stacker crane can be improved. Further, by storing the packages at the same destination in the storage unit of the storage shelf, it is possible to reduce the work of replacement and re-entry and improve the output efficiency.

According to a third aspect of the present invention, when a specified number of packages that can be simultaneously transferred by the stacker crane are not prepared in the standby unit within a preset standby time, a smaller number of packages can be stored in the storage unit by the stacker crane. The gist is to perform the transfer work.
According to the invention which concerns on Claim 3, it can suppress that a warehousing efficiency falls by restrict | limiting the time which makes a standby part wait for a load.

In the invention according to claim 4, each of the traversers, when not interfering with other traversers, receives the load placed on the corresponding receiving side table and to the waiting unit for the received baggage or the receiving side table. The gist is to deliver
According to the invention of claim 4, since all the traversers can perform the transfer operation at the same time, it is possible to reduce the waiting time while the luggage is placed on the cradle, and the warehousing ability is improved. To do.

In the invention according to claim 5, the load receiving operation by the stacker crane for the standby portion on the most upstream side is performed by a traverser when the load to be transferred to the delivery stand is placed on the stand on the most upstream side. The gist is to give priority to the work of transferring packages.
According to the fifth aspect of the invention, the transfer operation of the traverser from the table located on the most upstream side to the delivery table on the delivery side is prioritized over the work for receiving the load by the corresponding stacker crane on the most upstream side. Since the stacker crane receives the luggage after emptying the most upstream stage, the next luggage can be transferred to the receiving stage during the luggage receiving work by the stacker crane. This improves the warehousing efficiency.

  According to the automatic warehouse and warehousing method of the present invention, the packages of the same shipping destination are collected in the standby unit, and then transferred to the storage shelf by the stacker crane, so that the packages of the same shipping destination are collectively stored in the storage unit of the storage shelf. It can be stored in the storage area, the work of replacement and re-entry can be reduced, and the delivery efficiency can be improved.

  Next, the automatic warehouse and the warehousing method according to the present invention will be described in detail below with reference to the accompanying drawings by referring to preferred embodiments. In the embodiment, the direction perpendicular to the longitudinal direction of the storage shelf in which the steel material bundle as the luggage is stored is referred to as the width direction, and the exit station side set in one of the longitudinal directions of the storage shelf is the front side. The opposite side is designated as the rear side.

  As shown in FIG. 1, in an automatic warehouse 10 according to the embodiment, a plurality (5 in the embodiment) of storage shelves 12 are arranged in parallel in the width direction. As shown in FIG. 2, each storage shelf 12 basically has storage sections 16 (see FIG. 3) on which the steel bundles 14 can be placed in four rows in the width direction on both sides in the width direction. A plurality of rows and a plurality of rows are provided in the direction. However, with respect to the storage shelves 12 positioned on both sides in the width direction, the storage unit 16 is provided only on the inner side. Between the storage shelves 12 and 12 adjacent to each other in the width direction (between the rows of storage shelves), a stacker crane 20 that can receive power from the trolley wire along a rail 18 extending in the longitudinal direction is disposed. Has been. As shown in FIG. 2 or FIG. 3, the stacker crane 20 includes a transfer fork 24 that can be expanded and contracted in the width direction with respect to a lift 22 that is movable in the vertical direction. The steel material bundle 14 is transferred by 24 expansion and contraction movements. The storage shelves 12 and the stacker cranes 20 have the same configuration. When they are particularly distinguished and described, the first, second, and third in order from the upper side (one side) to the lower side (the other side) in FIG. .. Are added and designated, and a, b, c,...

  The transfer fork 24 of the stacker crane 20 is configured to be able to transfer two bundles (specified number) of steel material bundles 14 in parallel in the width direction at a time. Further, the expansion and contraction of the transfer fork 24 in the width direction is set so as to stop at four positions with respect to the left and right storage units 16 and 16 when the steel bundle 14 is received as shown in FIG. That is, when the mounting positions of the steel material bundles 14 in the storage units 16 and 16 located on the left and right of the lifting body 22 are A to H from the left side, two bundles of steel materials located in AB, CD, EF, and GH The transfer fork 24 is set to extend and stop at a position where the bundle 14 can be transferred simultaneously. In addition, the transfer fork 24 of an Example is comprised so that it can stop also in 8 positions so that the 1 steel bundle 14 located in AH can be transferred.

  At a predetermined position in the longitudinal direction in the storage shelf group, the steel material bundle 14 supplied to the warehousing station 26 set on one side in the width direction is controlled by the control device 28 to control each storage shelf 12 (12a to 12e). The warehousing device 30 that sorts the storage shelves is arranged so as to cross the storage shelf group in the width direction. As shown in FIG. 4, the warehousing device 30 is disposed at predetermined intervals in the width direction, and a table 32 on which the steel material bundle 14 can be placed in two rows in the width direction on the upper surface, and a table adjacent in the width direction. A traverser 34 that is disposed between 32 and 32 and is movable in the width direction; a standby unit 36 that is disposed above each traverser 34 and on which the steel bundles 14 can be placed in two rows in the width direction; A storage cart 38 for transferring the steel bundle 14 one by one to the mounting table 32 located at the storage station 26 is basically provided. In addition, about the flow of the steel material bundle 14 in the warehousing apparatus 30, the warehousing station side is called an upstream side (one side), and the opposite side is called a downstream side (the other side). In addition, each table 32, each traverser 34, and each standby unit 36 have the same configuration, and when they are particularly distinguished and described, the first, second, third,... Characters in order from the upstream side to the downstream side. .., And a, b, c...

  The warehousing carriage 38 is disposed at the warehousing station 26 and is configured to be movable in the width direction between an upstream receiving position and a downstream delivery position, and is located upstream of the warehousing carriage 38 facing the receiving position. Steel material bundles 14 supplied from the manufacturing equipment are transferred one by one. The warehousing cart 38 is configured to transfer the steel material bundle 14 from the warehousing cart 38 to the first mounting table 32a on the delivery side after moving from the receiving position to the delivery position. The warehousing carriage 38 has an upstream side from the placement position on the downstream side (the other side) when the first placement base 32a is empty with respect to the first placement base 32a on which the steel material bundle 14 can be placed in two rows in the width direction. The steel material bundle 14 is set to be transferred in order to the (one side) mounting position. That is, when the steel material bundle 14 has already been placed at the downstream placement position of the first placement table 32a, the steel material bundle 14 is transferred from the storage cart 38 to the placement position upstream of the first placement table 32a. It is supposed to be. The storage station 26 is directly connected to production facilities composed of four production lines, and the steel material bundles 14 are transferred to the storage station 26, that is, the storage cart 38 one by one in order from the four lines. It is configured as follows. In other words, the steel bundle 14 is transferred to the storage cart 38 with the shipping destination being in a random state.

  The traverser 34 is configured so that two rows of steel material bundles 14 can be transferred simultaneously in the width direction, and can move in the width direction across the movement line of the corresponding stacker crane 20. Further, the traverser 34 is provided between a receiving position for receiving the steel material bundle 14 placed on the upstream (receiving side) placing table 32 and a delivery position for delivering the steel material bundle 14 to the downstream (delivering side) placing table 32. The steel material bundle 14 received from the receiving table 32 at the receiving position is moved to the delivery position and delivered to the delivering table 32. That is, in the warehousing device 30 of the embodiment, the steel material bundle 14 transferred to the first mounting table 32a can be sequentially fed to the downstream side via the plurality of traversers 34 and the mounting table 32 arranged in series in the width direction. ing.

  The standby unit 36 is arranged above the corresponding traverser 34 at a position where the corresponding stacker crane 20 can receive the steel bundle 14 between the receiving position and the delivery position of the traverser 34. Moreover, the arrangement | positioning height of the standby part 36 is set to the dimension which the traverser 34 which mounted the steel material bundle 14 can pass below. In addition, the installation position of the 4th stand 32d on the most downstream side is set to a position where the corresponding fourth stacker crane 20d can receive the steel material bundle 14 placed on the stand 32d. In other words, in the embodiment, the steel material bundles 14 placed on the first standby unit 36a, the second standby unit 36b, and the third standby unit 36c are connected to the corresponding first stacker crane 20a, second stacker crane 20b, and third stacker. While the crane 20c receives and transfers to the designated storage unit 16, the fourth stacker crane 20d located on the most downstream side receives the steel material bundle 14 placed on the fourth table 32d and is designated. It is transferred to the storage unit 16.

  The traverser 34 is configured to perform the work of delivering the received steel material bundle 14 to the corresponding standby unit 36, separately from the work of delivering the received steel material bundle 14 to the delivery stage 32. When delivering the bundle of steel materials 14 from the traverser 34 to the standby unit 36, the traverser 34 is placed on the downstream side (the other side) of the standby unit 36 when the standby unit 36 is empty. To the upstream (one side) mounting position in order to transfer the steel bundle 14. That is, when the steel material bundle 14 is already placed at the placement position downstream of the standby unit 36, the steel material bundle 14 is transferred from the traverser 34 to the placement position upstream of the standby unit 36. It has become.

  On the front side (left side in FIG. 1) of the storage shelf group, a delivery station 40 is set corresponding to each stacker crane 20, and the delivery station 40 and a delivery position in the storage shelf group adjacent to the delivery station 40. The delivery cart 42 is configured to reciprocate between the two. The stacker crane 20 moves to the storage unit 16 where the requested steel material bundle 14 is stored in response to the input of the output request signal from the control device 28, and the steel material bundle 14 stored in the storage unit 16 is transferred. The steel plate 14 is received by the transfer fork 24 by the expansion and contraction movement of the loading fork 24 and the vertical movement of the elevating body 22, and the steel material bundle 14 is delivered to the unloading carriage 42 waiting at the unloading position. The unloading carriage 42 moves from the unloading position to the unloading station 40 so that the steel material bundle 14 placed on the unloading carriage 42 is transferred to a truck or the like by an overhead traveling crane or the like. It has become.

  As shown in FIG. 1, a fixed-side photoelectric transmission device 44 connected to the control device 28 is disposed in front of the most advanced position of the stacker crane 20, and the fixed-side photoelectric transmission device 44 in the stacker crane 20 is disposed on the fixed-side photoelectric transmission device 44. A movable-side photoelectric transmission device 46 is disposed at the front portion facing the vehicle, and is configured to perform various types of information communication such as the delivery request signal between the photoelectric transmission devices 44 and 46. That is, the stacker crane 20 is configured to perform an incoming operation, an outgoing operation, a replacement operation, a re-entry operation, and the like of the steel material bundle 14 based on information communication between the photoelectric transmission devices 44 and 46. In the embodiment, the information communication means is constituted by both photoelectric transmission devices 44 and 46.

  A light emitting portion 48a of the photoelectric sensor 48 connected to the control device 28 is arranged on the rear side of the last retracted position of the stacker crane 20, and the light receiving portion of the photoelectric sensor 48 is disposed on the rear portion of the stacker crane 20 facing the light emitting portion 48a. A portion 48b is provided. The photoelectric sensor 48 is connected in series with the information communication means in a circuit, so that the photoelectric transmission path between the photoelectric transmission devices 44 and 46 is blocked, and the optical path between the light emitting section 48a and the light receiving section 48b is blocked. When one of the states occurs, the automatic operation of the stacker crane 20 is set to be disabled. However, the stacker crane 20 is always in a state where power can be supplied via the trolley wire, and is configured to be able to check the operation by manual operation even in a state where automatic operation is impossible. .

  A plurality of detection means 50 such as photoelectric sensors capable of detecting the stacker crane 20 are arranged in a predetermined area where the stacker crane 20 and the storage device 30 intersect, and the stacker crane 20 stops in error in the area. This is configured so that an operator can be made aware by lighting a lamp or the like (not shown). Note that the detection means 50 is installed at a position where it is possible to detect the operator's entry, and the detection means 50 detects the worker in a state where a predetermined safety measure (for example, turning on the inside entry switch is not turned on) has been performed. If detected, the control device 28 is set to make an emergency stop of the warehousing device 30.

  In the control device 28, the presence / absence of the steel material bundle 14 in each storage unit 16 of each storage shelf 12 (12a to 12e) and the position information (information on the placement position) when stored, the stored steel material bundle 14 is stored as inventory management data (product name, product number, quantity, shipping destination, etc.). In addition, the control device 28 has a preset standby time from the time when one bundle of steel material bundles 14 is placed at the downstream placement position of each standby unit 36 (36a to 36c) or the fourth placement table 32d. Even if the steel bundle 14 of the same shipping destination is not supplied to the warehousing station 26, the corresponding stacker crane 20 is controlled to move to the storage unit 16 in which one bundle (less than the specified number) of steel bundles 14 is designated. It is supposed to be listed. In addition, the control device 28 has a plurality of traversers 34 in a situation where each traverser 34 in the warehousing device 30 is free from the interference with other traversers 34 when the platform 32 to which the traverser 34 delivers the steel bundle 14 is empty. It is set so that the delivery work in can proceed simultaneously.

(Effects of Example)
Next, the operation of the automatic warehouse according to the embodiment will be described in relation to the warehousing method.

  When a bundle of steel material bundles 14 is placed on the warehousing cart 38 waiting at the receiving position, the warehousing cart 38 moves to the delivery position, and the steel material is moved to the downstream placement position in the first placing table 32a. The bundle 14 is transferred. If the shipping destination of the steel material bundle 14 scheduled to be transferred from the storage cart 38 next to the first placing table 32a is the same as the shipping destination of the steel material bundle 14 previously placed on the first placing table 32a. The storage cart 38 transfers the next steel material bundle 14 to the mounting position on the upstream side of the first mounting table 32a.

  Two steel bundles 14 having the same shipping destination are placed on the first table 32a, and the steel bundles 14 are transferred to the storage unit 16 in charge of the first stacker crane 20a corresponding to the first traverser 34a. In the case of a power steel material bundle, the first traverser 34a receives the two steel material bundles 14 from the first mounting table 32a and moves downstream, and transfers the steel material bundle 14 to the first standby portion 36a. The two steel bundles 14 transferred to the first standby section 36a are transferred to the designated storage section 16 by the first stacker crane 20a, the operation of which is controlled based on the information obtained through the information communication means. The bundle is transferred at the same time. In this case, with respect to the transfer position of the steel material bundle 14 from the first stacker crane 20a to the storage unit 16, as shown in FIG. 3, the steel material bundle 14 is transferred to any one of AB, CD, EF, and GH in the storage unit 16. It will be posted. In addition, about the transfer position of the steel material bundle 14 in the storage part 16, the position which can be managed by the control apparatus 28 and can perform a delivery work efficiently is designated.

  When the two bundles of steel materials 14 placed on the first table 32a are not steel materials bundles to be transferred to the storage unit 16 in charge of the first stacker crane 20a, the first traverser 34a is the first table. The two steel material bundles 14 are received from 32a and moved to the downstream side, and the steel material bundles 14 are transferred to the second mounting table 32b. And the 2nd traverser 34b is the steel material which the steel material bundle 14 currently mounted in the 2nd mounting base 32b should be transferred with respect to the storage part 16 which the 2nd stacker crane 20b takes charge like the said 1st traverser 34a. If it is a bundle, the steel material bundle 14 is transferred to the second standby section 36b, and if not, the steel material bundle 14 is transferred to the third stage 32c on the downstream side. Further, the third traverser 34c also operates in the same sequence as the second traverser 34b, selects the third standby portion 36c or the fourth mounting table 32d, and transfers the steel bundle 14.

  Here, in the automatic warehouse 10 of the embodiment, since the storage device 30 is arranged so as to cross the movement line of the stacker crane 20, the first stacker crane 20a receives the steel material bundle 14 from the first standby unit 36a. If the first traverser 34a performs the delivery work of the steel material bundle 14 between the first mounting table 32a and the second mounting table 32b, both 20a and 34a may interfere with each other. Therefore, in the embodiment, regarding the work of receiving the steel material bundle 14 from the first standby unit 36a by the first stacker crane 20a, the steel material bundle 14 placed on the first placing table 32a is to be sent after the second placing table. In such a case, the delivery work of the steel material bundle 14 from the first table 32a to the second table 32b by the first traverser 34a is performed with priority. As a result, while the first stacker crane 20a receives the steel bundle 14 from the first standby section 36a, the first traverser 34a receives the steel bundle 14 placed on the first table 32a. You can eliminate the time to wait. In addition, by giving priority to the work of receiving the steel material bundle 14 by the first traverser 34a, the steel material bundle from the storage cart 38 for the empty first mounting base 32a during the work of receiving the steel material bundle 14 by the first stacker crane 20a. 14 transfer work can be performed, and the waiting time of the transfer work of the steel bundle 14 by the storage cart 38 can be reduced. That is, it is possible to prevent the steel material bundle 14 supplied to the warehousing station 26 from stagnating on the most upstream side in the transfer direction of the steel material bundle 14, and to improve the warehousing efficiency of the steel material bundle 14.

  Next, a case where a steel material bundle 14 different from the shipping destination of the steel material bundle 14 placed at the downstream placement position in the first placement table 32a is to be transferred to the first placement table 32a next. explain. In this case, before the second steel bundle 14 is transferred to the first table 32a, the first traverser 34a receives the one steel bundle 14 placed on the first table 32a and receives the downstream side. Move to. Further, when the received steel material bundle 14 is a steel material bundle to be transferred to the storage unit 16 in charge of the first stacker crane 20a, the first traverser 34a moves the steel material bundle 14 in the first standby part 36a. Transfer to the downstream mounting position (see FIG. 5A).

  When the bundle of steel materials 14 received from the first platform 32a to the first traverser 34a is not a steel material bundle to be transferred to the storage unit 16 in charge of the first stacker crane 20a, the first traverser 34a. Transfers the received steel bundle 14 to the mounting position downstream of the second mounting table 32b. And the 2nd traverser 34b is the steel material which the steel material bundle 14 currently mounted in the 2nd mounting base 32b should be transferred with respect to the storage part 16 which the 2nd stacker crane 20b takes charge like the said 1st traverser 34a. If it is a bundle, it is transferred to a mounting position on the downstream side of the second standby unit 36b, and otherwise it is transferred to the third mounting table 32c. Note that the third traverser 34c also operates in the same sequence as the second traverser 34b, selects the third standby part 36c or the fourth mounting table 32d, and transfers the steel bundle 14.

  The storage unit 16 that the first stacker crane 20a takes charge of the first cart 32a in a state where the bundle of steel materials 14 is mounted only at the downstream mounting position with respect to the first standby unit 36a. When the two steel bundles 14 to be transferred are placed on the storage unit 16 other than (see FIG. 5B), the first traverser 34a removes the two steel bundles 14 from the first table 32a. The steel bundle 14 is received and transferred to the second table 32b. Then, the two steel bundles 14 placed on the second mounting table 32b are transferred by the traverser 34 to the standby unit 36 or the mounting table 32 corresponding to the stacker crane 20 in charge of the designated storage unit 16.

  In a state where a bundle of steel material bundles 14 is placed only at a downstream placement position with respect to the first standby portion 36a, the steel material bundle 14 at the same shipping destination as the steel material bundles 14 is replaced with the first placement table 32a. When the first traverser 34a is transferred from the storage cart 38 (see FIG. 5 (c)), the first traverser 34a receives a bundle of steel material 14 from the first mounting table 32a, and the steel material bundle 14 is received by the first standby section 36a. Is transferred to the mounting position on the upstream side. That is, since the two steel material bundles 14 of the same shipping destination are collected in the first standby unit 36a, the two steel material bundles 14 are collectively transferred to the storage unit 16 by the first stacker crane 20a.

  In addition, the shipping destination of the bundle of steel materials 14 placed on the first table 32a is a bundle of steel materials placed on the second standby unit 36b, the third standby unit 36c, or the fourth table 32d first. If the bundle 14 is the same as the shipping destination, it is sequentially transferred by the traversers 34a, 34b, 34c and transferred to the corresponding standby portion 36b, 36c or the mounting position on the upstream side of the fourth mounting table 32d. Collect steel bundles 14 at the shipping destination.

  It should be noted that the steel material bundle 14 of the same shipping destination is supplied even when a preset standby time has elapsed from the time when one bundle of steel material bundles 14 is placed on each standby part 36a, 36b, 36c or the fourth mounting table 32d. If not, the control device 28 controls the operation of the corresponding stacker cranes 20a, 20b, 20c, 20d and transfers one bundle of steel material bundles 14 to the designated storage unit 16. Thereby, it is prevented that the steel material bundle 14 stagnates in the warehousing station 26 or the supply to the warehousing station 26 is delayed due to the long standby time, and the efficiency of the warehousing work is suppressed from decreasing.

  In addition, each traverser 34 is in a state where the other traversers 34 are in operation when the steel material bundle 14 is transferred from the receiving side table 32 to the receiving side table 32 as long as it does not interfere with the other traversers 34. But it can be done. Therefore, the efficiency of the warehousing operation can be improved as compared with the case where the other traverser 34 is performing a predetermined operation while waiting.

  In the automatic warehouse 10 of the embodiment, the steel material bundle 14 supplied to the warehousing station 26 is sequentially transferred to a position that can be received by the stacker crane 20 corresponding to the storage unit 16 designated by the plurality of traversers 34 arranged in series. Thereby, the steel material bundle 14 can be distributed to each storage shelf 12, and the filling rate of the steel material bundle 14 with respect to the storage part 16 can be improved. In addition, by transferring the steel material bundle 14 from the traverser 34 to the standby unit 36, the traverser 34 can receive the next steel material bundle 14, and therefore the transfer of the steel material bundle 14 to the downstream side is delayed. Storing efficiency can be improved.

  Furthermore, in the automatic warehouse 10 according to the embodiment, the steel material bundle 14 supplied in a random state to the warehousing station 26 can be bundled for each shipping destination. The steel bundle 14 can be stored together. Therefore, the stacker crane 20 can receive two bundles of steel materials 14 having the same shipping destination at the time of delivery and transfer them to the delivery cart 42. That is, since it is reduced that the steel bundles 14 having different shipping destinations are stored side by side in the storage unit 16, it is possible to reduce the number of times of performing the replacement work and the number of the re-entry work prior to the delivery operation. This can improve the efficiency of shipping work.

  In addition, in the automatic warehouse 10 of an Example, when the stacker crane 20 stops by an error for any reason, it is necessary for an operator to enter the warehouse and perform maintenance. At this time, information communication by the photoelectric transmission devices 44 and 46 is interrupted and the photoelectric sensor 48 is turned off. Thereby, the safety | security at the time of an operator performing maintenance is improved. That is, in the conventional automatic warehouse, the photoelectric sensor 48 is not provided, and when the stacker crane 20 stops due to an error, the operator is in the warehouse while the information communication by the photoelectric transmission devices 44 and 46 is stopped. Since entering and performing maintenance, there is a possibility that information communication by the photoelectric transmission devices 44 and 46 may be restarted by mistake when a failure or the like of the stacker crane 20 is recovered. However, in the embodiment, information communication by the photoelectric transmission devices 44 and 46 is impossible under the condition that the photoelectric sensor 48 is OFF, so that high safety during work in the warehouse is ensured.

  In the automatic warehouse 10 according to the embodiment, since the storage device 30 is arranged so as to cross the movement line of the stacker crane 20, when the stacker crane 20 stops due to an error in the intersecting area between the two, the detection means 50 The lamp is turned on by the detection, and it is possible to prompt the worker to take an appropriate measure before entering the warehouse.

(Example of change)
The configuration of the automatic warehouse is not limited to that of the embodiment, and various modifications can be made as follows.
(1) In the embodiment, a case has been described in which the prescribed number of steel material bundles transferred simultaneously by the traverser and the stacker crane is two bundles, but three or more bundles may be used. For example, when the traverser and the stacker crane are configured so that three bundles of steel materials can be transferred simultaneously, three bundles of steel materials can be collected in the standby unit and simultaneously transferred to the storage unit. In this case as well, when one or two steel bundles are placed on the standby section and the standby time has elapsed from when the third steel bundle is supplied, one or two steel bundles are It may be transferred in advance with a stacker crane.
(2) The luggage to be stored in the storage shelf is not limited to the steel material bundle of the embodiment.
(3) The number of storage shelves, stacker cranes, traversers, pedestals, etc. is not limited to the embodiment, and can be arbitrarily set according to the specifications of the automatic warehouse.

It is a schematic plan view of the automatic warehouse which concerns on an Example. It is a front view which shows partially schematic structure of the automatic warehouse which concerns on an Example. It is explanatory drawing which shows the transferable position of the steel material bundle by a stacker crane with respect to the storage part which concerns on an Example. It is a schematic block diagram which shows the warehousing apparatus which concerns on an Example. A steel material bundle of one bundle is transferred to the standby unit by the warehousing device according to the embodiment, and the steel material bundle having a different shipping destination is allowed to be transferred to the downstream side, and the steel material bundle having the same shipping destination is transferred to the standby unit. It is explanatory drawing which shows the operation | movement put together.

Explanation of symbols

12 (12a-12e) Storage shelf 14 Steel material bundle (luggage)
16 Storage unit 20 (20a to 20d) Stacker crane 32 (32a to 32d) Stand 34 (34a to 34c) Traverser 36 (36a to 36c) Standby unit 38 Storage cart

Claims (5)

A stacker (12) having a plurality of storage sections (16) in the longitudinal direction and the vertical direction is arranged in parallel, and is disposed between the storage shelves (12) in a stacker that moves along the storage shelf (12). In an automatic warehouse where a plurality of loads (14) can be simultaneously delivered to each storage unit (16) by a crane (20),
A plurality of platforms (32) that are spaced apart in the width direction intersecting the moving direction of the stacker crane (20), and a plurality of loads (14) are placed in parallel in the width direction;
A trolley (38) for transferring one load (14) one by one from a position on the other side to a position on the one side with respect to the table (32) located at one end in the width direction;
A plurality of traversers (34) that move in the width direction between the pedestals (32) adjacent in the width direction and deliver the load (14) received from the pedestal (32) on one side to the pedestal (32) on the other side. ,
A standby unit that is disposed above each traverser (34), and a plurality of loads (14) are placed in parallel in the width direction, and the corresponding stacker crane (20) can receive the loads (14). (36)
The traverser (34) is configured to be able to select and deliver the received parcel (14) to the corresponding standby section (36) or the other pedestal (32). A stacker (12) having a plurality of storage sections (16) in the longitudinal direction and the vertical direction is arranged in parallel, and is disposed between the storage shelves (12) in a stacker that moves along the storage shelf (12). In an automatic warehouse where a plurality of loads (14) can be simultaneously delivered to each storage unit (16) by a crane (20),
A plurality of traversers (34) movable in the width direction intersecting the moving direction of the stacker crane (20) are arranged in series in the width direction,
Shipment of a load (14) placed on a pedestal (32) located on the receiving side of the traverser (34) and a load (14) to be transferred next to the pedestal (32) on the receiving side If the destination is different, the load (14) placed on the receiving table (32) is transferred to the standby section (36) by the traverser (34) and the next shipment destination is different (14) Can be transferred to the table (32) located on the delivery side by the traverser (34),
When a package (14) of the same shipping destination as the package (14) placed on the standby unit (36) is transferred to the receiving table (32), the package (14) is transferred to the traverser (34 ) To the standby unit (36), the packages (14) of the same ship-to destination are collected in the standby unit (36),
A method of receiving an automatic warehouse, wherein a plurality of loads (14) placed on the standby unit (36) are transferred to the storage unit (16) by the stacker crane (20).   If a specified number of loads (14) that can be transferred simultaneously by the stacker crane (20) are not available in the waiting section (36) within a preset waiting time, a smaller number of loads (14) than the specified number are stacked. 3. The automatic warehouse storage method according to claim 2, wherein the operation of transferring to the storage unit (16) is performed in (20).   When each of the traversers (34) does not interfere with other traversers (34), it receives the load (14) placed on the corresponding receiving stage (32) and waits for the received load (14). 4. The automatic warehouse warehousing method according to claim 2 or 3, wherein delivery is performed to the section (36) or the delivery stand (32).   The work of receiving the load (14) by the stacker crane (20) for the standby section (36) on the most upstream side is that the load (14) transferred to the delivery stand (32) is transferred to the most upstream stage (32). 5. The automatic warehouse storage method according to any one of claims 2 to 4, wherein priority is given to the transfer operation of the load (14) by the traverser (34) when it is placed.

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