JPH0351206A - Rack facility using transport device - Google Patents

Abstract

PURPOSE:To secure a constant speed transport and facilitate shipping and receiving by classifying a rack conveyor into multiple groups, driving and stopping it freely for each group, driving it when a load is absent in groups at the downstream, and stopping a group at the end downstream group when a load is present. CONSTITUTION:A transport device is classified into groups A to H for a set of six idle rollers 28, and a transmission device 25 is provided free to connect and disconnect for each group A to H. The connection and disconnection of the transmission device 25 are made by passing and stopping the flow in a supply hose 43 and supply and discharge hose 40 by means of a solenoid valve 41 to connect the transmission device to an idle roller 28 and to connect to and disconnect from a drive device 35. The facility is so constructed that, when a load 39 is absent in a group at a downstream in adjacent groups, the transmission device 25 may be connected and, when the load 39 is present in the end downstream group, it may be disconnected.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to the storage of loads directly or via pallets;
This relates to shelving equipment that is used to take out items as needed.

2. Description of the Related Art Conventionally, this type of shelving equipment has been used, for example, in
As seen in Publication No. 18750, in the framework frame,
Transporting wheel rails with a large number of wheels (
A structure is provided in which the rollers are arranged in multiple upper and lower stages with the sliding direction inclined. According to this conventional structure, the load thrown into the upper part of the slope slides on the wheel and is received by a stopper provided at the lower end, and the loads thrown in sequentially are received by the previous load and stored. It turns out. The stored load is then taken out from the lower part of the slope as needed, and the removal trace is filled in by the sliding of the rear load. In this conventional example, loading and unloading of loads is done manually, but in the case of large shelves that handle large loads, loading and unloading of loads is performed using, for example, a forklift vehicle.

Problems to be Solved by the Invention According to the conventional method as described above, the load is moved by sliding using the free rotation of the wheels, so the free rotation may not be carried out smoothly or there may be variations in the load. In some cases, the sliding cannot be performed reliably, resulting in poor reliability. Furthermore, in view of frictional resistance, for example, some pallets may not be usable depending on their material. For these problems, it is possible to set a sufficient angle of inclination, but if the angle of inclination is large, the sliding speed will be high and not constant, and the impact will be large when it is caught by the stopper, causing damage to the load. This results in poor stability. In addition, the dead space on the slope will increase, resulting in inefficient storage. Furthermore, when handling a load using a forklift vehicle, it is necessary to insert a fork into the pallet on which the load is placed, and it is not easy to level the load, especially when taking it out.

SUMMARY OF THE INVENTION An object of the present invention is to provide a shelving facility using rollers that can reliably move loads at a constant speed while keeping the conveyance direction horizontal, and can easily load and unload loads.

Means for Solving the Problems In order to achieve the above object, the roller-using shelving equipment of the first invention includes a conveying device consisting of a pair of left and right conveyors on the shelf frame.
The conveyor is arranged in multiple stages above and below with the conveyance direction being horizontal, and at least one conveyor of the conveyance device is divided into a plurality of groups in the conveyance direction, and a transmission device that is constantly linked to a drive device is connected and separated for each group. Each group is provided with a valve device that separates and operates the transmission device when there is a load, and for two groups that are adjacent in the conveyance direction, when there is no load in the downstream group, both transmission devices are connected and moved, and The most downstream group is designed to prevent the transmission from separating when loaded.
An operating circuit is provided that interposes these transmission devices and valve devices.

In the shelving equipment using rollers according to the second invention, a conveying device consisting of a pair of left and right conveyors is arranged on the shelf frame in multiple stages above and below, with the conveying direction being horizontal, and at the side of each conveying path. A guide device is provided, one conveyor of the conveyor is divided into a plurality of groups in the conveyance direction, and a transmission device that is constantly linked to the drive device can be connected and disconnected for each group. A valve device is provided to separate the transmission devices when loading, and for two groups adjacent in the transport direction, both transmission devices are connected and operated when there is no load in the downstream group, and the most downstream group is connected and operated when there is a load. An operating circuit is provided that interposes these transmission devices and valve devices so that the device can operate separately.

Effect According to the structure of the first invention, when there is no load on the conveying device, at least one of the conveyors forming the conveying device is in a driving state over the entire length of the conveying path, so that there is no load at the upstream end. The supplied load is supported between both conveyors and is sequentially conveyed toward the downstream end under the conveying force of the conveyors. Then, they are stored sequentially from the downstream end toward the upstream, but at this time, in the most downstream group, the transmission device separates and becomes non-driving due to the presence of cargo, and in the subsequent groups, the same time as the downstream group Since it becomes non-driving due to the presence of cargo, one conveyor does not feed the stored cargo. When a group with no cargo is generated, this group and the group with cargo on the upstream side are driven at the same time to convey the cargo on the upstream side to the downstream side, thereby transporting the cargo sequentially. , can be densely stored from its downstream end to its upstream side. Further, loading and unloading of loads to and from the conveyor can be accomplished by positioning, for example, a fork between a pair of conveyors.

According to the configuration of the second invention, the load supplied to the upstream end is supported between both conveyors, receives the conveying force of one of the conveyors, is guided by the guide device, and is sequentially conveyed toward the downstream end. Ru.

EXAMPLE An example of the present invention will be described below with reference to FIGS. 1 to 17.

Reference numeral 50 denotes a shelf frame, which includes a plurality of left and right front columns 51, a plurality of left and right rear columns 52, and a front cross member 5 that connects the front columns 51.
3, a rear cross member 54 that connects between the rear struts 52, and a front and rear member 5 that connects the front and rear of the front struts 51 and the rear struts 52.
It consists of 5 etc. Supports 51°52 of this shelf frame 50
A pair of left and right roller conveyors 59 and 60 each having a large number of idle rollers are provided in a plurality of partitions in the left and right direction formed between them.
A plurality of transport devices 58 are arranged in upper and lower stages, with the transport direction 47 being horizontal. That is, the main body frame 1 of both roller conveyors 59, 60 is constituted by a pair of left and right side frames IA, IB, and a base frame IC that connects the lower portions of these side frames LA, IB. There are a plurality of base frame ICs in the conveyance direction 47, and plate nuts 63A are formed by inserting holes (61A, 61B) passed through from below into dovetail grooves 62A, 62B formed on the lower surfaces of the side frames IA, IB. .

By screwing and tightening 63B, both sides frame IA.

Connected between 18. Also, both side frames LA located on the outside,
On the outer surface of the IB, there are dovetail grooves 6 in two places (in multiple places) on the top and bottom.
4A and 64B are formed, and these dovetail grooves 64A
, 64B are fitted with plate nuts 65A and 65B. Bolts 66 passed through the struts 51 and 52 from the side
The main body frame 1 is fixed to the shelf frame 50 by screwing and tightening the plate nuts 63A and 66B into the plate nuts 63A and 53B.

L-shaped guide portions 2A and 2B are formed on the opposing inner surfaces of both side frames IA and IB, and a nut body 3A is formed on the upper portion.
, 3B are formed with dovetail grooves 4A and 4B that allow sliding movement. Also, the outer side frame I of one roller conveyor 59
A, on the inner side of the lower part, there are mounting parts 5 and 6, respectively.
A pair of upper and lower guide rails 7.8 are disposed in the longitudinal direction of the frame. On the inner side of both side frames IA and IB,
The lower ends thereof are fitted to form a support frame 9A made of resin.

9B is provided so that its position can be changed (slidably) in the longitudinal direction of the frame, and these support frames 9A and 9B are mounted using bolts IOA and IIB that are formed in the intermediate part and passed through holes 11A and IIB.
The OB is fixed in the changed position by screwing it into the nut bodies 3A and 3B. The outer support frame 9A of one roller conveyor 59 is case-shaped, and the lower end to which the two guide members are fitted and the attachment are connected to the base plate 12 in which the hole 11A is formed, and from the inner surface of the lower half of this base plate 12. It is formed by a pair of front and rear cover plate parts I3 that are connected inward and a connecting plate part I4 provided between the lower ends of these cover plate parts 13, and the base plate part 12 is attached above the hole 11A. A pair of upper and lower through holes 15a and 15b are formed in the. Note that similar through holes 15a and 15b are also formed in the inner support frame 9A of the other roller conveyor 60.

The remaining support frames 9B of both roller conveyors 59 and 60 are rectangular plate-shaped, and the pair of mounting grooves 16a are provided on both sides of the holes 11B with open upper and lower end faces and inner faces in the height direction. 16b is formed. Lock here 1116
Distance L1 from the back of a, 16b to the mounting hole 11B
．． L2 is a hole for mounting on one support frame 9A! 1A to the through holes 15a and 15b, L1. It is equal to L2. Both support frames 9A.

9B, an idler roller 2 made of resin is inserted via a roller shaft 27.
8.28a is rotatably provided. That is, one end of the roller shaft 27 inserted so as to freely rotate relative to each other is inserted into the through hole 15a,
15b, and the other end into the locking groove 16a.
, 16b from above, the roller shaft 27 can be attached, and the idle rollers 28+283 can freely rotate around the roller axis 29. A support shaft 18 along the roller axis 29 is attached to the outer support frame 9A of one roller conveyor 59 so as to be vertically swingable. That is, a bearing hole 19 is formed at the lower end of the base plate part 12, and the inner end of the support shaft 18 is fitted into the bearing hole 19, so that it can freely swing up and down. Then, the resin wedge-shaped plate part 23 is inserted between the free ends of the cover plate part 13, and the outer end of the support shaft 18 is inserted into the vertical recess 24 formed in the vertical plate of the L cedar plate part 23. By fitting together, the vertical swing range of the support shaft 18 is restricted. A sprocket 20, which is an example of a passive wheel, is rotatably attached to the support shaft 18, and a transmission roller 21 is externally fitted and fixed to the boss portion of the sprocket 20, so that both 20 and 21 can freely rotate together. . The transmission roller 2I is made of urethane rubber, and its outer periphery can freely come into contact with and separate from the lower outer periphery of the idle roller 28. Then, an air cylinder device 17 for contacting and separating the support shaft 1
Cylinder rubber receiver 22 attached to the outer end of 8 and L cedar board part 2
It is interposed between the horizontal plate of No.3.

The above-mentioned 17 to 24 constitute one unitized transmission device 25, and this transmission device 25 is the support frame 9A.

A large number of rollers are arranged on the main body frame 1, forming a pair with the idler roller 28 via the rollers 9B and the like. Cheno 30, which is a common driving body interlocked with each sprocket 20, is stretched between a driving sprocket 31 and a driven sprocket 32 via a guide sprocket 33, etc., and operatively connects the driving sprocket 31 to a motor 34. ing. The above-mentioned 30 to 34 constitute a drive device 35 that is constantly linked to each transmission device 25.

Idle roller 28 paired with transmission device 25 as described above
, and a free rotating roller 211a that does not form a pair.
By arranging the set pitch device on the main body frame 1, a conveyance path 38 is formed by both roller conveyors 59 and 60. A cargo 39 is handled via a pallet 37. Note that a stopper 56 fixed to the shelf frame 50 side is provided at the end of the conveyance path 38.

As mentioned above, the idler roller 2 paired with the transmission device 25
8, as shown in FIGS. 5 and 8, for example, there are a plurality of groups of six arranged in a predetermined manner; in the embodiment, there are eight groups A, B, C, and D.

E, F, G, and H are arranged, and the transmission device 25 can be freely connected and separated for each group. That is, each group is provided with a supply/discharge hose 40 in which the air cylinder device 17 is connected in series, and the downstream ends of these supply/discharge hoses 40 are connected to the common air supply from the air supply device 42 via the valve device 41. It is configured so that it can be selectively connected to and disconnected from the hose 43. The valve device 41 is a mechanical valve, and its upward operating rod 41a protrudes above the conveying surface at the upper end of the downstreammost idle roller 28 in each group A-H. The valve device 41 connects the supply/discharge hose 40 to the air supply hose 43 when the pallet 37 is absent and the operating rod 41a protrudes upward, and connects the supply/discharge hose 40 to the air supply hose 43 when the pallet 37 is present and is pushed downward. Air supply hose 43
It operates in such a way that it divides the object. In groups C-H other than the two downstream groups A and B, the upstream end of each supply/discharge hose 40 is connected via a connecting hose 44 to the downstream end of the supply/discharge hose 40 in the next downstream group B-G. Connected. And the two downstream groups A,
In B, the upstream ends of each supply/discharge hose 40 are connected by a connecting hose 45, and a time delay valve 46 is interposed in this connecting hose 45.

The above-mentioned hose 40, 43, 44, 45, etc. constitute an actuation circuit 48 that interposes the transmission device 25 and the valve device 41, and this actuation circuit 48 is connected to the downstream of the two groups adjacent in the conveying direction 47. When there is no load 39 in the side group, both transmission devices 25 are connected and operated, and when the most downstream group A is loaded, its transmission device 25 is operated separately.

the outer side frame IA of the double roller conveyor 59.60;
The IB includes a guide device 7 located on the side of the conveyance path 38.
QA, 70B are provided, and these guide devices 70A,
70B is frames 71A and 71B that are detachably attached to the upper parts of side frames IA and IB, and this frame 71A.

A large number of guide rollers 72A are arranged on the upper surface of 71B.

It consists of 72B. Note that the guide devices 70A and 70B may be of a guide plate type or the like.

Next, the conveyance work in the above embodiment will be explained.

3 and 4, the valve device 41 is connected and moved to connect the air supply hose 43 to the supply/discharge hose 40, the support shaft I8 is swung upward by the extension of the air cylinder device 17, and the transmission roller 2
1 is pressed against the corresponding idle roller 28 from below. At this time, the chino 30 is constantly being driven by the motor 34, and therefore the sprocket 20 engaged with the chino 30 is rotating around the support shaft 18. Further, the transmission roller 21 is in contact with the lower part of the outer circumference of the idler roller 28, so that the group of idler rollers 928 is forcibly rotated. As a result, the pallet 37 on the conveyance path 38 is supported between the idling rollers 28.28a of both roller conveyors 59.60, receives the conveying force due to the forced rotation of the idling roller 28 group on the -blade side, and Is the surface a guide roller? 2A
, 72B, and can be transported on this transport path 38.

Conveying device 58 consisting of a pair of roller conveyors 59, 60
basically transports the pallet (load) 37 as described above, but in reality the valve device 41 transports the pallet 3
Conveyance control is performed based on whether or not 7 is detected. That is, when the conveyance path 38 is empty, the operating rods 41a of each valve device 41 protrude without being detected, so that air from the air supply hose 43 is routed through the valve device 41 to all supply and exhaust gases. The air is supplied to the hose 40, and each air cylinder device 17 is extended to forcefully rotate all idle rollers 28 of all groups A to H. In this state, the pallet 3 is placed on the group H at the upstream end by the forklift truck 68.
7, the valve device 41 of group H will open its operating rod 4.
1a is pushed down and performs a dividing operation, but since the valve device 41 of the group G one downstream is not detected as described above, a part of the air supplied to this group G is passed through the connecting hose 44. The air is supplied to the supply/discharge hose 40 to connect and operate the air cylinder device 17 of group H, and the groups of idle rollers 28 of groups H and G are forcibly rotated to move the pallet 37 from group H to group G. and transport. When pallet 37 enters group G, this group
Since the valve device 41 of the group F is not detected as described above, the idling rollers 28 of the group G are similarly forced to rotate, and the pallet 37 of the group G is detected.
and then transported to Group F. The pallets 37 that have been sequentially conveyed to the downstream side in this manner come into contact with the stopper 56, stop, and are stored in group A. When the valve device 41 of group A detects this pallet 37 and operates to disconnect, the supply to the supply/discharge hose 40 of group A is stopped and at the same time, the supply/discharge hose 40 is opened, and the transmission device 25 of group A is separated to stop the forced rotation of all idle rollers 28. The second pallet 37 is also conveyed in the same manner, and is stored in group B by coming into contact with the pallets 37 of group A. At this time, group B is detected and moved, but since group A is also detected and moved, group B is also separated and moved. In such an operation, it is assumed that, for example, as shown in FIG. 6, pallets 37 are stored in all groups A to H and all are separated and moved. In this state, when the pallet 37 of group A is taken out by the forklift truck 68 as shown in FIG. Figure 5, No. 8
As shown in the figure, the pallets 37 of group B are transferred to group A.
transport to. Then, since the valve device 41 of group B is not detected, groups B and C are connected, and the pallets 37 of group C are transported to group B as shown in FIG. By repeating such actions, the pallets 37 can be sequentially fed as shown in FIGS. 1θ to 14.

Note that the pallet 37 of group A can be taken out by the forklift truck 68 by inserting its fork into the pallet 37, but this is done by both roller conveyors 59 and 60.
By inserting it under the pallet 37 between the pallets 37 and 37, leveling etc. can be easily performed, and removal control using a crane-type loading/unloading device is also facilitated. Furthermore, group A
Forking errors may occur when taking out the pallet 37. In this case, the valve device 41 of group A is not detected, the pallet 37 of group B is sent to group A, and the forked pallet 37 is transferred to group A.
cannot be returned to. However, according to the above embodiment, since the communication hose 45 is blocked by the time-dare valve 46 for the set time, Group B can be in a divided state within the set time, and therefore the forking mistake is noticed. Palette 37 can then be returned to group A.

For example, as shown in FIG.
is not detected, and as shown in FIG. 15, when the pallet 37 of group A is further removed, the first
As shown in FIGS. 6 and 17, sequential feeding is performed at three locations in the direction of the conveyance path 38. In the same way, sequential feeding of three or more locations is also performed.

In the above embodiment, a roller conveyor 5 is used as the conveyor.
It showed 9.60, but this is a belt conveyor.

It may be a chain conveyor, a roller chain conveyor, etc. Although a mechanical valve type having an actuating rod 41a is shown as the valve device 41, it may also be a solenoid valve connected to a photoelectronic switch for detecting the presence of goods.

As shown in the above embodiment, the roller conveyor 59, 60 is divided into left and right parts, and only one is driven, so that the transmission device 2
5 and the drive device 35 can be made simple and inexpensive, and even though it is driven on one side, the load 39 can be moved by the guide device? OA, 70B
It can be transported without meandering.

Although a great effect can be expected by driving only one of the roller conveyors 59 in this way, in the first invention, both roller conveyors 59
．． 60 may also be driven. In addition, all of the idle rollers 28 of one roller conveyor 59 are driven, but as shown in FIG. Alternatively, a non-driven idling roller 28a may be used. In this case, a portion of the driving idling rollers 28 are provided in each group A to H, and may be provided every two groups. By making a part of the drive type in this way, the transmission device 25 can be simplified,
The whole thing can be made cheaper.

Effects of the Invention According to the first invention having the above configuration, when there is no load on the conveying device, at least one of the conveyors forming the conveying device is in a driving state over the entire length of the conveying path, and therefore the upstream The load supplied to the end is supported between both conveyors, receives the conveying force of one of the conveyors, and can be conveyed sequentially toward the downstream end. The loads are stored sequentially from the downstream end toward the upstream, but at this time, in the most downstream group, the transmission is separated and becomes non-driving due to the presence of the load, and in subsequent groups, the transmission device is not driven. Since one of the conveyors is not driven due to simultaneous presence of cargo, one of the conveyors does not feed the stored cargo, and damage to the cargo and the conveyor can be prevented. When a group with no cargo is generated, this group and the group with cargo on the upstream side are driven at the same time to convey the cargo on the upstream side to the downstream side, thereby allowing the cargo to be sent sequentially. It is possible to densely store data from the downstream side to the upstream side. In this way, only the necessary cargo can be forcibly moved within the shelf, and reliable movement (progressive feeding) can always be performed regardless of variations in load or the material of the pallet. Moreover, since the moving speed can be made constant, stable conveyance can be performed. Furthermore, it can be arranged horizontally, eliminating the dead space of the conventional slope, and providing shelf equipment with high storage efficiency. In addition, loading and unloading of loads to and from the conveyor device can be carried out by easily leveling the load, for example by positioning a fork below the load between a pair of conveyors. Furthermore, various devices such as a power supply device and hoses can be arranged using the space between the pair of conveyors, and the device can be suitably used in various fields such as shelf equipment that can perform aging.

According to the second invention, the load supplied to the upstream end is
It is supported between both conveyors, receives the conveyance force of one conveyor, and is guided by a guide device, so that it can be conveyed sequentially toward the downstream end. In this way, by dividing the conveyor into left and right sides and driving only one side, the transmission and drive devices can be made simple and inexpensive, and even though the conveyor is driven on one side, the load does not meander due to the guide device. Can be transported.

[Brief explanation of drawings]

Figures 1 to 17 show an embodiment of the present invention; Figure 1 is a side view, Figure 2 is a front view, Figure 3 is a partially cutaway front view of the main part, and Figure 4 is the same. FIG. 5 is a schematic side view of the main part, FIGS. 6 to 17 are schematic side views showing the state of use, and FIG. 18 is a schematic side view of the main part showing another embodiment. be. 1... Main body frame, 7, 8... Guide rail, 1
7... Cylinder device, 18... Support shaft, 2o... Sprocket, 2I... Transmission roller, 25... Transmission device, 28... Idle roller, 30... Cheno, 34...
...Motor, 35...Drive device, 37...Pallet, 38...Transport route, 39...To be transported, 41...
- Valve device, 41a... operating rod, 42... air supply device,
43...Air supply hose, 44.45...Connection hose,
47... Conveying direction, 48... Operating circuit, 50...
・Shelf frame, 51...Front support, 52...Rear support, 5
6... Stopper, 58... Conveying device, 59.60.
...Roller conveyor? OA, 70B...Guide device, A-H...Group.

Claims (1)

[Claims] 1. A conveyance device consisting of a pair of left and right conveyors is mounted on the shelf frame,
The conveyor is arranged in multiple stages above and below with the conveyance direction being horizontal, and at least one conveyor of the conveyance device is divided into a plurality of groups in the conveyance direction, and a transmission device that is constantly linked to a drive device is connected and separated for each group. Each group is provided with a valve device that separates the transmission device when there is a load, and for two groups that are adjacent in the conveyance direction, when there is no load in the downstream group, both transmission devices are connected and operated, and The most downstream group is shelf equipment using a conveyor device, characterized in that an operating circuit is provided that interposes the transmission device and the valve device so that the transmission device moves separately when there is stock. 2. A conveyance device consisting of a pair of left and right conveyors is attached to the shelf frame.
The conveyance direction is horizontal, and the conveyance direction is horizontal, and the conveyance direction is horizontal, and the conveyance direction is horizontal, and the conveyance direction is horizontal, and the conveyance direction is horizontal, and the conveyance direction is horizontal, and a guide device is provided on the side of each conveyance path.
One of the conveyors of the conveyance device is divided into a plurality of groups in the conveyance direction, and for each group, the transmission device that is constantly linked to the drive device can be connected and disconnected, and for each group, the transmission device can be disconnected and activated when there is stock. In the two groups adjacent in the conveying direction, both transmission devices are connected and operated when there is no load in the downstream group, and in the most downstream group, the transmission devices are separated when there is a load. A shelving facility using a conveying device characterized by having an operating circuit interposed between the transmission device and the valve device.