JPH0210041B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for loading and unloading trays into and out of each tray of a rotary rack having a plurality of upper and lower horizontal tray circulation paths.

(Prior art and its problems) As a warehousing device that can be used for warehousing each tray of a rotating rack, for example, the
As disclosed in Publication No. 30605, a transfer conveyor that can be driven in the warehousing direction is provided on the elevating carriage, and the transfer conveyor is movable back and forth in a direction parallel to the warehousing direction and is at least in the backward limit position. It is known to have a warehousing pusher that enters and exits at the bottom.

According to this conventional warehousing device, with the warehousing pusher retracted below the transfer conveyor, the cargo sent out from above the warehousing conveyor is passed over the warehousing pusher and onto the transfer conveyor. The loading device can be used to transfer the load to the warehouse and push the load onto the tray of the rotating rack using the warehousing pusher, but this warehousing device is also used to unload the load pushed out from the tray of the rotating rack by the unloading pusher onto the unloading conveyor. It had not been considered that it could also be used as a warehouse delivery device.

Japanese Utility Model Application Publication No. 58-30608 discloses a warehousing operation in which a load on an elevating platform is pushed onto a tray of a rotary rack by a warehousing pusher, and a loading operation in which a load is pushed from the tray onto the elevating platform by an unloading pusher on the rotating rack side. A warehousing/unloading device has been disclosed that can carry out pushing and unloading work, but since it is not possible to transport the cargo in the loading/unloading direction on the elevating platform, it is difficult to take out the cargo to be unloaded from the elevating platform. It is necessary to manually transfer the cargo to be stored onto the elevating platform, or to use special equipment to perform this task.

Furthermore, the device disclosed in Japanese Utility Model Application Publication No. 58-30607 uses a special lateral movement type conveyor for loading and unloading, and the load is loaded so that a part of the load sticks out on the tray of the rotating rack. It is not a type of loading/unloading device that requires support and uses a pusher to transfer cargo.

As is clear from the above explanation, this is a loading and unloading method that uses a loading and unloading device that can be used for general rotating racks, which requires the use of a pusher to push the load both when loading and unloading. In both cases, there was no known method of loading and unloading goods by transferring them on a transfer conveyor.

(Means for Solving the Problems) In order to solve the above-mentioned conventional problems, the present invention provides a lift carriage which moves up and down adjacent to the loading and unloading work position of the rotary rack, and which can be driven in both loading and unloading directions. A warehousing/unloading conveyor is provided, and a warehousing pusher is provided which is movable back and forth in the warehousing/unloading direction and retracts under the warehousing/unloading conveyor at least at the end in the warehousing direction. A loading/unloading pusher is provided for pushing the load onto the loading/unloading conveyor, and a loading conveyor for pushing the load onto the loading/unloading conveyor is provided on the opposite side of the rotating rack side of the elevating carriage; A warehousing/unloading device is used in which a warehousing/unloading conveyor is placed at a different height from a warehousing/unloading conveyor that receives cargo sent out. is driven in the warehousing direction, and after transferring the load from the warehousing conveyor onto the warehousing/unloading conveyor, the warehousing pusher is projected onto the warehousing/unloading conveyor and moved in the warehousing direction. The load is transferred from the top of the dual-purpose conveyor onto the tray of the rotating rack, and when unloading, the load/unload pusher is moved under the loading/unloading conveyor, and the rotating rack is moved while the loading/unloading conveyor is driven in the unloading direction. The present invention proposes a method for loading and unloading a rotary rack, characterized in that the load on the top is pushed out onto a conveyor for both loading and unloading by the pusher for loading and unloading, and the load is sent onto the conveyor for loading and unloading by the conveyor for loading and unloading.

(Embodiment) Hereinafter, an embodiment of the present invention will be described based on the attached illustrative drawings. In FIG.
is the outgoing conveyor. The rotating rack 1 includes:
A tray oval horizontal circulation path 5 is provided in a plurality of upper and lower stages, and a loading/unloading work position 6 is set in the tray path 5 of each stage at the same position in the vertical direction. Lifting carriage 2
Further outside the elevating carriage 2, the storage conveyor 3 and the storage conveyor 4 are installed at different heights.

In FIGS. 2 and 3, 7 is a tray that moves in each stage tray path 5, and there are two types: a wide tray 7a and a narrow tray 7b.
A tray path 5 along which the tray 7b moves and a tray path 5 through which the narrow tray 7b moves are provided. Of course, 1
It is also possible to configure the tray path 5 in two stages so that the wide tray 7a and the narrow tray 7b move. As shown in FIG. 3, the elevating carriage 2 is movable up and down along the support column 8, and is connected to an elevating drive chain 10 rotated by a motor 9. be forced to move. As shown in FIG. 2 and FIG.
a stopper 12 that can freely move in and out to stop the container 1; and a plurality of rows of chains that can be raised and lowered to push up the container 11 stopped by the stopper 12 from above the receiving conveyor 2 and send it to the elevator path of the elevator carriage 2. A perpendicular conveyance means 14 using a conveyor 13 is provided. Further, as shown in FIG. 2, the outgoing conveyor 3 has an elevating section adjacent to the elevating path of the elevating carriage 2, which receives the container 11 sent out from above the elevating carriage 2 and lowers it onto the outgoing conveyor 3. Transfer means 16 are provided using a gravity roller conveyor 15, which is possible. 17 is a stopper provided at the lower end of the gravity roller conveyor 15.

As shown in FIGS. 2 and 3, inside the loading/unloading work position 6 in the tray path 5 of each stage, there is a loading/unloading pusher which is moved in and out of each row by a cylinder/piston unit 18. 19 are arranged.

As shown in FIGS. 3 to 5, there are a pair of left and right roller conveyors 20 on the elevating carriage 2 that can be driven both in and out of the warehouse. In addition, at the backward limit position, a warehousing pusher 21 that retracts below the height of the container support surface of the conveyor 20, and a pair of left and right fixed guides 22 that guide the wide container 11a stored in the wide tray 7a.
a, 22b, and one fixed guide 22a, a movable guide 23 that can be moved laterally to guide the width container 11b stored in the width tray 7b, and a cylinder/piston unit 24 that causes the movable guide 23 to move laterally. is provided. As shown in FIGS. 5 to 7, the storage pusher 21 is
It is supported so as to be able to swing up and down via a horizontal and lateral support shaft 27 on a movable base 26 which is movably fitted and supported by the slide rail 25 of the book. A cam driven roller 29 is pivotally supported on one side of the rear end opposite to the certain side, and a cam rail 30 is provided that regulates the attitude of the storage pusher 21 via the cam driven roller 29. Reference numeral 31 denotes a drive chain for reciprocating the storage pusher 21, and is suspended by a drive gear 33 interlockingly connected to a drive motor 32 and a plurality of free rotating gears 34. The cam rail 30 moves the warehousing pusher 21 toward the cam only when the warehousing pusher 21 is at the backward limit position (the end of the moving path on the far side with respect to the rotary rack 1). Driven roller 2
9, and a linear cam portion 30b that raises the warehousing pusher 21 as shown by the solid line in FIG. 6 when it is in another path position. As shown in FIG. 6, when the pusher 21 is at the front end of its moving path, the pushing part 28 at the tip reaches the top of the tray 7 located at the loading/unloading work position 6 on the rotary rack 1 side.

Next, the warehousing operation method will be explained based on FIG. 8. The container 11 conveyed by the warehousing conveyor 3 is stopped by the stopper 12, and the elevating carriage 2 waits at a height corresponding to the warehousing conveyor 3. With the upper pair of left and right roller conveyors 20 being driven in the storage direction, the chain conveyor 13 of the orthogonal direction carrying out means 14 is raised and rotated to raise and lower the container 11 which is stopped by the stopper 12. It is sent onto the roller conveyor 20 on the carriage 2. At this time, as shown in FIG. 8, the warehousing pusher 21 is in a reclining position at the backward limit position, and the container 11 is transported above the warehousing pusher 21 in the warehousing direction.

When the container 11 passes directly above the warehousing pusher 21 and reaches a predetermined position, the roller conveyor 20 is stopped. As shown in FIG. 5, it is possible to automatically stop the roller conveyor 20 in conjunction with the detection operation of a pair of front and rear photoelectric switches S1 and S2 that detect both front and rear ends of the conveyor 11 when it has reached a predetermined position. I can do it. On the other hand, container 11
Once the tray has been placed on top of the elevating carriage 2, the elevating carriage 2 is moved up and down, and the tray path 5 of the specific stage containing the tray 7 to be stocked is Elevating and lowering the carriage 2 at a height adjacent to the loading/unloading work position 6 at
to stop. Further, each tray 7 in the tray path 5 including the tray 7 to be warehoused is rotated, and the tray 7 to be warehoused is stopped at the loading/unloading work position 6. Next, with the container 11 reaching the predetermined position on the roller conveyor 20 as described above, the movable platform 26 on the elevating carriage 2 is moved to the driving chain 3.
1 to move it along the slide rail 25 in the storage direction. As the movable base 26 moves, the warehousing pusher 21 moves together, but the warehousing pusher 21, which is in the collapsed state,
As the cam driven roller 29 moves from the rising cam part 30a to the linear cam part 30b of the cam rail 30, it rises behind the container 11 which is stopped at a predetermined position, and the pressing part 28 at the tip of the cam driven roller 29 moves the container 11 into the warehouse. It will push you in the direction. In this way, the container 11 on the lifting carriage 2
is pushed out and transferred onto a specific tray 7 waiting at the loading/unloading work position 6. After the warehousing operation is completed, the drive chain 31 is rotated in the opposite direction, and the warehousing pusher 21 is moved backward together with the movable base 26 to the backward limit position. The warehousing pusher 21 that has reached the backward limit position automatically falls down as the cam driven roller 29 moves to the rising cam portion 30a of the cam rail 30.

The unloading operation is performed as shown in FIG. That is, each tray 7 in the tray path 5 of each stage including the tray 7 to be unloaded is rotated, and the tray 7 to be unloaded is stopped at the loading/unloading work position 6. After the elevating carriage 2 has been moved up and down to the height corresponding to the loading/unloading work position 6, the unloading pusher 19 corresponding to the loading/unloading work position 6 is moved to the cylinder/piston unit 1.
8 to push out the container 11 on the tray 7 to be delivered from the tray 7 onto the roller conveyor 20 of the elevating carriage 2. At this time, the roller conveyor 20 is being driven in the unloading direction, and the pushed out container 11 is carried out by the roller conveyor 20 to a predetermined position (a position where the photoelectric switches S1 and S2 detect both the front and rear ends of the container 11). and stop.

After that, the elevating carriage 2 is moved up and down to a height corresponding to the delivery conveyor 4, and the elevating carriage 2 is moved up and down to a height corresponding to the delivery conveyor 4.
With the gravity roller conveyor 15 in the transfer means 16 raised, the roller conveyor 20 is again driven in the unloading direction. As a result,
The container 11 passes directly above the warehousing pusher 21 in the lying down position, is sent from above the elevating carriage 2 onto the gravity roller conveyor 15, and is stopped by a stopper 17. By lowering the gravity roller conveyor 15 in this state, the container 11 can be transferred onto the delivery conveyor 4, and the container 11 can be carried out by the delivery conveyor 4.

The above loading and unloading work has been explained regardless of the width of the container 11, but when the container 11 to be loaded and unloaded is a wide container 11a, the elevating carriage 2
The upper movable guide 23 is moved back to the same position as the fixed guide 22b or to a position outside of this, so that the wide container 11a can be guided by the pair of left and right fixed guides 22a and 22b.
When handling the narrow container 11b, the movable guide 23 is moved to the limit position by the cylinder/piston unit 24 as shown in FIG. 5, and the narrow container 11b is moved between the fixed guide 22a and the movable guide. 23 so that it can be guided. On the other hand, when stopping the tray 7 at the loading/unloading work position 6 as shown in FIG.
Regardless of whether it is a wide tray 7a or a small width tray 7b, the side 35 of the tray on the side corresponding to the fixed guide 22a on the elevating carriage 2 is attached to the fixed guide 2.
It is stopped so as to coincide with a fixed position 36 continuous to 2a. The stopper 12 of the orthogonal unloading means 14 of the warehousing conveyor 3 is provided at a position corresponding to the fixed guide 22a of the elevating carriage 2.

Therefore, regardless of whether the container 11 to be warehoused is a wide container 11a or a narrow container 11b, when transferring from the top of the elevating carriage 2 to the top of the wide tray 7a or the top of the narrow tray 7b, the fixed guide 22a , 22b or between the fixed guide 22
between the container 11a and the movable guide 23,
11b and trays 7a and 7 of corresponding width.
can be sent safely and reliably onto
In addition, the container 11 to be shipped is a wide container 11.
a, narrow width container 11b, when transferring from the large width tray 7a or the narrow width tray 7b onto the elevating carriage 2, the fixed guide 2
The containers 11a and 11b can be guided between 2a and 22b or between the fixed guide 22a and the movable guide 23.

Furthermore, as shown by the imaginary lines in Figure 1, multiple loading/unloading work positions are set on the tray path of one tier, and elevating carriages and unloading pushers are arranged corresponding to each loading/unloading work position. It is also possible to set
In this case, as shown in the figure, one unit each can be used as the incoming conveyor and the outgoing conveyor, or a plurality of these conveyors can be provided.

(Operations and Effects of the Invention) As described above, according to the loading/unloading method for a rotary rack of the present invention, the conveyor provided on the elevating carriage is driven in the loading direction when loading the warehouse, and in the opposite unloading direction when leaving the warehouse. As before, the receiving pusher is used only when entering the warehouse, and when leaving the warehouse, it is simply moved back under the conveyor, and the load pushed out from the tray of the rotating rack by the exit pusher is transferred to the conveyor on the elevating carriage. It is also possible to perform unloading work in which the goods are transported in the unloading direction and sent onto the unloading conveyor on the opposite side of the rotating rack.

In other words, since the load is pushed by the pusher both when entering and leaving the warehouse, it can be applied to a general rotary rack equipped with a normal tray that normally receives the entire bottom of the load, and moreover, it can be used as an elevating carriage. Since the upper conveyor can also be used for loading and unloading, the equipment is simpler and can be implemented at a lower cost compared to the case where dedicated conveyors are required for loading and unloading. Furthermore, since the cargo can be conveyed through the conveyor on the elevating carriage both when entering and leaving the warehouse, it is only necessary to arrange the incoming conveyor and the outgoing conveyor on the opposite side of the elevating carriage from the rotary rack side. Therefore, it is possible to simply and easily supply the incoming cargo to the conveyor on the elevating carriage and carry out the outgoing cargo from the conveyor without any manual intervention.

[Brief explanation of drawings]

Fig. 1 is a schematic plan view of the entire structure, Fig. 2 is a longitudinal side view at the loading/unloading work position, Fig. 3 is a cross-sectional plan view of the same,
Fig. 4 is a front view showing the elevating carriage and its elevating drive means, Fig. 5 is a plan view showing details of the elevating carriage, Fig. 6 is a side view showing the warehousing pusher and its driving means, and Fig. 7. 6 is an enlarged front view of FIG. 6, and FIGS. 8 and 9 are side views for explaining the loading/unloading method. DESCRIPTION OF SYMBOLS 1... Rotating rack, 2... Lifting carriage, 3... Incoming conveyor, 4... Outgoing conveyor, 5... Tray route, 6... Input/output work position, 7... Tray (7a... wide tray, 7b... narrow width tray), 11 ...container (11a...large width container, 11b...small width container), 12...stopper, 14...perpendicular direction carrying out means, 16...transfer means, 19...output pusher,
20... Pair of left and right roller conveyors, 21... Pusher for stocking, 22a, 22b... Fixed guide, 2
3...Movable guide, 25...Slide rail, 26...
Movable base, 29... cam driven roller, 30... cam rail, 31... drive chain, 35... one side of tray 7.

Claims (1)

[Claims] 1. On the elevating carriage that moves up and down adjacent to the loading and unloading work position of the rotary rack, there is a conveyor that can be driven in both loading and unloading directions, and a conveyor that can be moved back and forth in the loading and unloading direction, at least at the end in the loading and unloading direction. A loading/unloading pusher is provided below the loading/unloading conveyor, and a loading/unloading pusher is provided on the rotating rack side to push the load on the tray onto the loading/unloading conveyor. uses a warehousing/unloading device consisting of a warehousing conveyor that supplies cargo onto the warehousing/unloading conveyor and an warehousing conveyor that receives the cargo sent out by the warehousing/unloading conveyor at different heights on the opposite side. However, at the time of warehousing, the load is transferred from the warehousing conveyor onto the warehousing/output conveyor while the warehousing pusher is moved back and forth below the warehousing/output conveyor and the warehousing/output conveyor is driven in the warehousing direction. By protruding the warehousing push shear above the warehousing/unloading conveyor and moving it in the warehousing direction, the load is transferred from the warehousing/unloading conveyor onto the tray of the rotating rack. With the loading/unloading conveyor driven in the loading/unloading direction, the load on the rotary rack is pushed onto the loading/unloading conveyor by the loading/unloading pusher, and the loading/unloading conveyor moves the load onto the loading/unloading conveyor. A method for loading and unloading a rotating rack characterized by sending it upward.