JPH0351205A - Rack facility using roller - Google Patents

Abstract

PURPOSE:To enable the thick storage of loads by grouping a roller transport device into lengths corresponding to one load to be transported, providing a drive power transmission device free to connect and disconnect for each group, connecting the drive power transmission devices simultaneously when a load is present at the upstream side and it is absent at he downstream side in adjacent groups, and disconnecting them when a load is present in the end downstream group. CONSTITUTION:A transport device is classified into groups A to H for a set of idle rollers 28 (six units in the figure) corresponding for each load 39 to be transported, and a transmission device 25 is provided free to connect and disconnect for each group. The connecting 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 a transmission roller 21 to an idle roller 28 and to disconnect it from the idle roller 28, respectively. The switching-over of the transmission devices are made at the same time when a load is present at the upstream side and absent at the downstream side in adjacent groups. Also, the transmission devices are so controlled that they may be separated when a load is present in the end downstream group.

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 shelf equipment that uses rollers 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.

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 store loads densely.

Means for Solving the Problems In order to achieve the above object, the shelving equipment using rollers of the present invention has the following features:
A transport path consisting of a large number of idling rollers is formed on the shelf frame in multiple stages above and below, with the transport direction being horizontal, and each stage's idling rollers correspond to one object to be transported in the transport direction. Divide into a plurality of groups, drive bodies are arranged along the conveyance path, and a transmission device is provided between the drive body and the idle rollers, and this transmission device is arranged for each group with respect to the idle rollers. It can be connected and separated freely, and each group is provided with an inventory detection device, and two groups that come into contact with each other in the transport direction are configured so that the upstream group's inventory detector detects no movement and the downstream group's inventory detector does not detect it. The transmissions are configured to connect and move at the same time, and the transmissions of the most downstream group are configured to separate and move when the presence detector detects movement.

According to the configuration of the present invention, when a group in which there is no conveyed object occurs in the conveyance path of each stage, this group and the upstream loaded group are simultaneously driven to move the upstream side. One object to be conveyed will be conveyed to the downstream side, and by this, the objects to be conveyed will be conveyed sequentially, and one object to be conveyed will be conveyed from the downstream end to the upstream side in each group on the horizontal conveyance path. Can be stored individually and densely.

Example An embodiment of the present invention will be described below based on the drawings.

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
Roller conveyors 60 having a large number of idle rollers are disposed in a plurality of upper and lower stages, respectively, in a plurality of partitions formed between them in the left and right direction, with the conveyance direction being horizontal. That is, the main body frame 1 of the roller conveyor 60 includes a pair of left and right side frames IA and IB, and a base frame IC that connects the lower portions of these side frames IA and IB. This base frame IC has a plurality of bolts in the transport direction, and plate nuts 63A and 63B are formed by inserting bolts 51A and 61B passed from below into dovetail grooves 52A and 62B formed on the lower surfaces of the side frames IA and IB. By screwing and tightening, both sides frame L
Connected between A and IB. Also, both sides frame IA.

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 1) 5A and 65B.

Bolts 66A 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 nut 66B into the plate nuts 55A and 65B. L-shaped guides t12 are provided on the opposing inner surfaces of both side frames IA and IB.
A, 2B are formed, and nut bodies 3A, 3 are further formed on the upper part.
Dovetail grooves 4A and 4B are formed to allow sliding of B. In addition, on one side pIA, a pair of upper and lower guide rails 7.8 are attached to the inner surface of the lower part through parts 5 and 6, respectively.
are arranged in the length direction of the frame. Both side frames IA, IB
A resin support frame 9 is fitted onto the inner surface of the resin support frame 9 by fitting its lower end.
A and 9B are provided so that their positions can be changed (slidably) in the length direction of the frame, and these support frames 9A and 9B are formed in the middle part and can be mounted using bolts IOA passed through holes 11A and IIB.
, IOB is fixed in the changed position by screwing it into the nut bodies 3A and 3B.

The support frame 9A on the other side has a case shape, and the guide portion 2A
The lower end to be fitted to and the mounting are the base plate part 1 which has a hole 11A formed therein.
2, a pair of front and rear cover plate parts 13 that are connected inward from the inner surface of the lower half of the base plate part 12, and a connecting plate part 14 provided between the lower ends of these cover plate parts 13, The substrate portion 12 is attached through a pair of upper and lower through holes 15a above the hole 11=A.

+5b is formed. The other support frame 9B has a rectangular plate shape, and the pair of mounting grooves 16a have locking grooves 16a on both sides of the hole 11B that are open on the upper and lower end surfaces in the height direction as well as on the inner surface.
16b is formed. Here, the locking groove 16a, 1
The distance L2 from the back of the support frame 6b to the mounting hole 11B is equal to the distance Ll+L2 from the mounting hole 11A to the through holes 15a and 15b in one support frame 9A. An idling roller 28 made of resin is rotatably provided between the support frames 9A and 9B via a roller shaft 27. That is, by inserting one end of the roller shaft 27, which has been inserted so as to freely rotate relative to each other, into either of the through holes 15a and 15b, and dropping the other end into either of the locking grooves 16a and 16b from above, the roller shaft 27 can be rotated freely. The roller 28 can be mounted freely around the roller axis 29. A support shaft 28 along the roller axis 29 is attached to one support frame 9A 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 I8 is fitted into the bearing hole 19, so that it can freely swing up and down. Then, a resin-made Japanese cedar plate part 23 is attached between the free ends of the cover plate part 13 by inserting it, 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. Fit together,
The vertical swing range of the support shaft 18 is regulated. The support shaft 18
A sprocket 20, which is an example of a passive wheel, is rotatably attached to the sprocket 20, 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 21 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. An air cylinder device 17 for making contact and separation is interposed between a cylinder rubber receiver 22 attached to the outer end of the support shaft 18 and the horizontal plate of the L cedar board portion 23. The above-mentioned 17 to 24 constitute one unitized transmission device 25, and this transmission device 25 includes the support frames 9A and 9B.
A large number of rollers are disposed on the main body frame 1, forming a pair with the idler roller 28 via the like. A chino 30, which is a common driving body interlocked with each sprocket 20, is stretched along the conveying path 38 between the driving sprocket 31 and the driven sprocket 32 via a guide sprocket 33, etc. is interlocked and connected to the motor 34.

Idle roller 28 paired with transmission device 25 as described above
By arranging the set pitch device on the main body frame 1, a horizontal conveyance path 38 is formed by the group of idling rollers 28. Reference numeral 39 denotes an object to be transported, which 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
For example, as shown in FIG. 8, the conveyance path 38 consisting of 8 is composed of a group of six idle rollers 28 arranged in a predetermined arrangement, and a plurality of groups corresponding to each object 39 to be conveyed. In the example, 8 group A.

It is divided into B, C, D, E, F, G, and H, 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 4G having air cylinder devices 17 connected in series, and these supply/discharge hoses 40 are connected to a common air supply hose 43 from an air supply device 42 via a solenoid valve 41, respectively. It is configured to be freely connectable as an alternative. 44 is a regulator, and 45 is a silencer. A photoelectronic switch 46, which is an example of a stock detector, is provided at the downstream end of each group A, B, C...H. Here, in two groups adjacent in the transport direction 47, when the optoelectronic switch 46 of the upstream group is in the detection state and the optoelectronic switch 46 in the downstream group is not in the detection state, the transmission devices 25 of both groups are simultaneously connected and operated. Connection between air hose 43 and supply/discharge hose 40]
It is configured as much as possible. When the photoelectronic switches 46 of both groups are simultaneously in the detecting operation or in the non-detecting operation at the same time, the transmission devices 25 of both groups are simultaneously in the separating operation [the air supply hose 43
and the supply/discharge hose 40]. For this purpose, each solenoid valve 41 is integrated into a respective control unit 48 . Further, only the most downstream group A is configured so that the transmission device 25 is separated and moved when the optoelectronic switch 46 is detected and moved.

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

3 and 4 show that the solenoid valve 41 is switched to connect the air supply hose 43 to the supply/discharge hose 40, and the air cylinder device 17 is
The expansion causes the support shaft 18 to swing upward, and the transmission roller 2I is brought into pressure contact with 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, since the transmission roller 21 is in contact with the lower outer circumference of the idler roller 28, the group of idler rollers 28 is forcibly rotated, so that the pallet 37 can be conveyed on the conveyance path 38.

The roller conveyor 60 basically conveys the pallet (object to be conveyed) 37 as described above, but in reality, conveyance control is performed based on detection or non-detection of the photoelectronic switch 46. That is, when the transport path 38 is empty, the forklift vehicle 68 transports the group H at the upstream end.
When the pallet 37 is lowered, the photoelectronic switch 46 of group H is detected, but the photoelectronic switch 46 of group G is detected.
is not detected, the idle rollers 2 of both groups H and G are activated by the control unit 48 and the solenoid valve 41.
The 8th group is forcibly rotated, and the pallet 37 is moved to the group H.
from there to group G. When the pallet 37 enters group G, the optoelectronic switch 46 of this group G is detected, but it is not detected in group F, so groups G and F are connected and the pallet 37 is moved to group G.
and then transported to Group F. The pallets 37 sequentially transported downstream in this manner come into contact with the stopper 56 and stop, and are stored in group 8. When this pallet 37 is detected by the optoelectronic switch 46, group A is separated and moved. 2nd pallet 37
The pallets 37 are also conveyed in the same manner, and are stored in group B while coming into contact with the pallet 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. 5, pallets 37 are stored in all groups A to H and all are separated and moved. In this state, when the forklift truck 68 takes out the pallet 37 of group A as shown in FIG. 6, the photoelectronic switch 46 of group A is not detected, so it is group A.

B is connected, and pallets 37 of group B are thereby transferred to group A as shown in FIG. Then, since the opto-electronic switch 46 of group B is not detected, group B%C is connected, and the pallet 37 of group C is conveyed to group B as shown in FIG. By repeating such actions, the pallets 37 can be sequentially fed as shown in FIGS. 9 to 13.

For example, when the optoelectronic switch 46 of group F is in a non-detecting state as shown in FIG. 11, and the pallet 37 of group A is removed as shown in FIG. 14, as shown in FIGS. 15 and 16, Sequential feeding is performed at two locations in the direction of the transport path 38.

Sequential feeding of three or more locations is also performed in the same manner.

Effects of the Invention According to the present invention having the above configuration, when a group in which there is no transported object occurs in the transport path of each stage, this group and the upstream loaded group are simultaneously driven to One object to be transported can be transported to the downstream side.This allows the objects to be transported sequentially, and the objects can be transported from the downstream side to the upstream side in each group on the horizontal transport path. Can be stored densely one by one. In this way, only the necessary objects to be transported 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, it is possible to carry out stable and efficient transport without causing damage. Furthermore, it can be arranged horizontally, eliminating the dead space of the conventional slope, and providing shelf equipment with high storage efficiency.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, the first being a side view and the second being a side view.
The figure is a front view, FIG. 3 is a partially cutaway front view of the main part, FIG. 4 is a partially cutaway side view of the same, and FIGS. 5 to 16 are schematic side views showing the state of use. 1... Main body frame, 7, 8... Guide rail, 1
7... Cylinder device, 18... Support shaft, 20... Sprocket, 21... Transmission roller, 25... Transmission device, 28... Idle roller, 30... Cheno (driving body) ), 34...Motor, 37...Pallet, 38...
・Transport route, 39...To be transported, 41...Solenoid valve,
46...Photoelectronic switch (stock detector), 47...
Conveyance direction, 48... Control unit, 50... Shelf frame,
51... Front column, 52... Rear column, 56...
Stopper, 60...Roller conveyor, A-H...Group.

Claims (1)

[Claims] 1. A transport path consisting of a large number of idling rollers is formed on the shelf frame in multiple stages above and below, with the transport direction being horizontal, and the idling rollers of each stage are arranged in the transport direction for each object to be transported. A driving body is arranged along the conveyance path in a plurality of corresponding groups, and a transmission device is provided between the driving body and the idle roller, and this transmission device connects the idle roller to each group. For two groups that are adjacent in the transport direction, the upstream group's inventory detector operates and the downstream group's inventory detector operates. Use of rollers, characterized in that the transmission devices are configured to connect and move simultaneously when the presence detection is not detected, and the transmission devices of the most downstream group are configured to separate and move when the presence detector detects the presence of the item. Shelving equipment.