JPH01299107A - Shelf installment using roller - Google Patents

Abstract

PURPOSE:To enable secure convayance with low noise by dividing a plurality of groups of loosedy rotating rollers to conveying directions, making it possible to connect to and separate from an endless roller conveyer parallelly provided every group, and when an upper steam group is loaded, groups are connected to drive the conveyor. CONSTITUTION:A palette 37 is put on an upper stream and group H, a load sensor 70 is operated, a chain 30 is driven by a motor 34 to drive the transmitting roller 21 of a switching device 25. Meantime, the photoelectronic switch 46 of the group H conducts detection. At this time, the photoelectronic switch 46b of G group does not detect any thing so that the switching device moves upward by a control unit 48 and an electromagnetic valve 41, the loosely rotating rollers 28 of the group H, G to supply the palette 37 to the group G. Similarly, it is conveyed to a down stream one by one, the switch 46a of the most down stream is operated and the most down stream group A is parted from a conveyor 60 to be stopped. Thus, secure conveyance with low noise can be achieved.

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,
A structure is provided in which wheel rails having a large number of wheels are arranged in multiple stages above and below with their conveying (sliding) directions inclined. According to this conventional 'Jff4 construction, 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 caught by the previous load and stored. will be done. 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.

An object of the present invention is to provide a roller-based shelving facility that can reliably move loads at a constant speed while keeping the conveyance direction horizontal, and can reduce running costs and noise despite being a drive type. It is in the point of doing.

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 roller conveyor having a large number of idling rollers and an endless rotating body disposed along these idling rollers and interlocked with a drive device is disposed on the shelf frame, and the conveyance direction thereof is horizontal. The rolling roller group is divided into a plurality of groups in the conveying direction, and each group can be freely connected to and separated from the endless rotating body through a switching device, and a load detection device is provided for each group. The two adjacent groups are configured so that when the upstream group's inventory detector is on and the downstream group's inventory detector is not detected, the switching devices are connected and operated at the same time, and is configured such that the switching device separates and moves when the presence detector of the most downstream group is in a non-detecting state, and the switching device is configured to separate when the presence detector of the most downstream group becomes non-detecting, and the switching device separates when the presence detector of the most downstream group When the arrival detector provided at

According to the configuration of the present invention, when an object is unloaded onto the group at the upstream end when the roller conveyor is empty and the drive device is stopped, the arrival detector detects the object. As a result, the drive device is driven, and the endless rotating body is rotated for a set time. Then, as mentioned above, when the transported object is placed on the group at the upstream end,
The inventory detectors in this group are detected, but the inventory detectors in the next group are not detected, so the switching device is connected and the reversing roller groups in both groups are forcibly rotated by the endless rotating body. , the object to be transported is transported between both groups. The objects to be transported sequentially to the downstream side in this manner are stored in the most downstream group, and when the presence detector detects this, the most downstream group is separated and moved. Thereafter, the drive device is automatically stopped when the set time has elapsed. In this kind of work, when objects are stored in all groups and all the objects are moved separately, if the objects in the most downstream group are taken out, the presence detector for this group will not detect the objects. The drive device is driven from
The endless rotating body is rotated for a set time. Furthermore, when the presence detector becomes non-detecting, the most downstream group and the previous group are connected and the objects to be transported are transported. In this way, when a group with no objects to be transported occurs, this group and the group with the objects on the upstream side are driven at the same time to transport the objects on the upstream side to the downstream side. The objects to be conveyed can be fed sequentially and stored densely from the downstream end to the upstream side.

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 61A and 61B passed from below into dovetail grooves 62A and 62B formed on the lower surfaces of the side frames IA and IB. By screwing and tightening, both sides frame IA
, IB. Also, both sides frame IA.

The outer surface of the IB has dovetail grooves 6 at three locations (multiple locations) on the top and bottom.
4A, 64B are formed, and these dovetail grooves 64A,
Plate nuts 65A and 65B are fitted into 64B. Bolts 66A and 6 passed through the struts 51 and 52 laterally.
By screwing 6B into the plate nuts 65A and 65B and tightening them, the main body frame 1 is fixed to the shelf frame 50.L-shaped guide portions 2A are formed on the opposing inner surfaces of the two side frames IA and 1B.
, 2B are formed, and nut bodies 3A, 3B are further formed on the upper part.
Dovetail groove 4A that allows sliding.

4B is formed. In addition, on one side frame IA, a pair of upper and lower guide rails 7.8 are arranged in the length direction of the frame on the inner side of the lower part of the side frame IA, respectively, through mounting parts 5 and 6. On the inner surface of the IB, resin support frames 9A and 9B are provided with their lower ends fitted so that their positions can be changed (slidably) in the length direction of the frame.
, 9B are mounting holes 11A, 1 formed in the middle part.
Bolts 10A and IQB passed through 1B are attached to the nut body 3.
It is fixed at the changed position by screwing it into A and 3B.

One support frame 9A has a case shape, and the guide portion 2
The lower end and attachment to be fitted to A include a base plate part 12 with a hole 11A formed therein, a pair of front and rear cover plate parts 13 connected inward from the inner surface of the lower half of this base plate part 12, and these cover plate parts 13. A pair of upper and lower through holes 15a are provided above the hole 11A for mounting the base plate 12.

15b is formed. The other support frame 9B has a rectangular plate shape, and a pair of β-shaped holes 11B are sandwiched between the locking grooves 16a on both sides of which the upper and lower end surfaces in the height direction and the inner surface are open.
, 16b are formed. Here, the locking groove 16a,
The distance from the back of 16b to the mounting hole 11B is L1, L
2, the mounting on one support frame 9A is equal to the distance L1°L2 from the hole 11A to the through holes 15a, 15b. A rolling roller 28 is rotatably provided. That is, by inserting one end of the roller shaft 27, which has been inserted so as to freely rotate freely, into either the through hole 15a or 15b, and dropping the other end into one of the locking grooves 16a or 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 18 along the roller axis 29 is attached to one support frame 9A.
is mounted so that it can swing up and down. 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. And between the free ends of the cover plate part 13 is a resin-made Japanese cedar plate part 23.
is attached by insertion, and the outer end of the support shaft 18 is fitted into a vertical recess 24 formed in the vertical plate of the L cedar board portion 23, thereby regulating the vertical swing range of the support shaft 18. The support shaft 18 is equipped with a sprocket (y) 20, which is an example of a passive wheel.
is rotatably attached, and a transmission roller 21 is externally fitted onto the boss portion of this sedge rocket 20, making both 20 and 21 rotatable together. The transmission roller 21 is made of urethane rubber, and its outer periphery is able to come into contact with and separate from the lower outer periphery of the reversing 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 switching device 25, and this switching device 25 is connected to the support frame 9.
A, 9B, etc., form a set with the idle roller 28,
A large number of them are arranged on the main body frame 1. 20 sedge rockets each
The chain 230, which is a common endless rotating body linked to the drive sprocket 31 and the driven sprocket 32, is stretched through a guide sprocket 33, etc., and connects the drive tin rocket 31 to the motor 34, which is a drive device. It is linked and linked.

Switching equipment as above! ! , 25 are disposed on the main body frame 1 at the setting pitch device, thereby forming a conveyance path 38 by the group of idle 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 described above, the reversing rollers 28 paired with the switching device 25 are divided into a plurality of groups, each group consisting of six rollers arranged in a predetermined manner, as shown in FIG. ,D,E.

F, G, and H are arranged, and a switching device T12 is installed for each group.
5 can be connected and separated at will. That is, each group is provided with a supply/discharge hose 40 in which the air cylinder device 17 is connected in series, and these supply/discharge hoses 40 are connected to a common air supply hose 4 from an air supply device 42 via a solenoid valve 41.
It is configured so that it can be freely connected to 3. 44 is a regulator, 45 is a silencer, each group A, B,
A photoelectronic switch 46, which is an example of a stock detector, is provided at each downstream end of C...H. Here, for two groups adjacent in the transport direction 47, when the optoelectronic switch 46 of the upstream group is in the detecting operation and the optoelectronic switch 46 of the downstream group is not detecting, the switching devices 25 of both groups are simultaneously in the connecting operation [ The air supply hose 43 and the supply/discharge hose 40 are connected to each other. When the photoelectronic switches 46 of both groups are simultaneously in the detecting state or in the non-detecting state at the same time, the switching devices 25 of both groups are simultaneously in the separating state [separating the air supply hose 43 and the supply/discharge hose 40].
It is configured as much as possible. 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 drive device 25 separates and moves when its optoelectronic switch 46a detects and moves. Group H at the most upstream side (inlet section) has an arrival detector 70 consisting of a photoelectronic switch, a limit switch, etc.
is provided. The motor 34 is normally in a stopped state, and is started when the arrival detector 70 detects the movement.
For example, it operates for a set time T1 using a timer and then stops. This set time T1 is sufficient time to transport the pallet 37 placed in the most upstream group H to the most downstream group A.

At this time, when the photoelectronic switch 46b corresponding to the second group G from upstream is in the detection operation, the motor 34 is not started even if the arrival detector 70 is in the detection operation. Further, the motor 34 is started when the photoelectronic switch 46a corresponding to the most downstream group A becomes non-detected, and is stopped after operating for a set time T. This set time T2 is sufficient time to sequentially feed all of the remaining pallet groups 37 when the most downstream pallet 37 is taken out when the conveyance path 38 is full.

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 21 is brought into pressure contact with the corresponding idle roller 28 from below. At this time, by driving the chino 30 by the motor 34, 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, as shown in FIGS. 20 and 21, the photoelectronic switch 4
6. Conveyance control is performed based on the detection or non-detection of 46a, 46b and the arrival detector 70.

That is, when the transport path 38 is empty and the motor 34 is stopped, the pallet 37 is unloaded onto the group H at the upstream end by the forklift truck 68 as shown in FIG. vessel 70
is detected, and as a result, the motor 34 is started and operated for a set time T1. The chenno 30 is driven by the operation of the motor 34, and the transmission rollers 21 of each switching device 25 are forcibly rotated via the sprocket 20. In such an operating state, when the pallet 37 is placed on the group H at the upstream end as described above, the photoelectronic switch 46 of group H is detected, but the photoelectronic switch 46b of group G is not detected. The switching device 2 is activated by the operation of the unit 48 and the solenoid valve 41.
5 connects # (upward movement), which causes both groups H1G
The idling rollers 28 group are forcibly rotated, so that the pallet 3
7 from group H to group G.

When the pallet 37 enters group G, the photoelectronic switch 46b of this group G detects it, but it does not detect it in group F, so groups G and F are connected and the pallet 37 is transferred from group G to group F. transport. As shown in FIG. 6, the pallets 37 sequentially transported downstream come into contact with the stopper 56, stop, and are stored in group A. When this pallet 37 is detected by the opto-electronic switch 46a, group A will move by M minutes. Thereafter, when the set time T1 elapses due to the excess time, the motor 34 is automatically stopped. Then, as shown in Figure 7, group H
When the second pallet 37 is unloaded, this second pallet 37 is similarly conveyed, comes into contact with the pallets 37 of group A, and is stored in group B. At this time, group B is detected, but since group A is also detected, group B is also separated. For example, when the first pallet 37 is unloaded and the second pallet 37 is unloaded during transportation as shown in FIG. 6, the aforementioned set time T1 is set when the second pallet 37 is detected. A new time will be counted from then on. In such an operation, for example, as shown in FIG. 8, pallets 37 are stored in all groups A to H,
Suppose that everything is made into minutes M#. In this state, when the pallet 37 of group A is taken out by the forklift vehicle 68 as shown in FIG. 9, the photoelectronic switch 46a of group A is removed.
Since the motor 34 is not detected, the motor 34 is started and operated for the set time T2. Further, since the optoelectronic switch 46a of group A is not detected, group A and Btfi are connected, and the pallet 37 of group B is transported to group A as shown in FIG.

Then, since the optoelectronic switch 4e of group B is not detected, groups B and C are connected, and the pallet 37 of group C is thereby transported to group B as shown in FIG. By repeating this action, the first
The pallets 37 can be sequentially fed as shown in FIGS. 2 to 16.

For example, when the optoelectronic switch 46 of group F is in a non-detecting state as shown in FIG. 14, and the pallet 37 of group A is removed as shown in FIG. 17, as shown in FIGS. 18 and 19, 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.

As shown in FIG. 16, when only the upstream group H is empty and the pallet 37 is unloaded to this group H, the motor 34 is about to be driven by the detector of the arrival detector 70; In this case, since the second optoelectronic switch 46b acts as a detector, the motor 34 is not driven.

Effects of the Invention According to the present invention having the above configuration, when a group in which there is no conveyed object is generated in the roller conveyor at each stage, this group and the upstream loaded group are simultaneously driven to move the upstream side to the upstream side. The objects to be transported can be transported to the downstream side, so that the objects can be transported sequentially and stored densely from the downstream side to the upstream side. 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, 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 particular, according to the invention:
Although it is a drive type, the drive device is driven only when necessary, so running costs can be reduced, driving noise can be reduced, and the appearance can be improved.

[Brief explanation of the drawing]

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 part, Figs. 5 to 19 are schematic side views showing the state of use, and Fig. 20 is The operation flow diagram and FIG. 21 are circuit diagrams. 1... Main body frame, 7, 8... Guide rail, 1
7... Cylinder device, 18... Support shaft, 20... Sprocket, 21... Transmission roller, 25... Switching device, 28... Idle roller, 30... Cheno (endless rotation) moving body), 34... motor (drive device), 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 support, 52 ... Rear support column, 56 ... Stopper, 60 ... Roller conveyor, 70 ... Arrival detector, A to H ... Group. Agent Yoshi Morimoto Private 2 Figure 53 jrr 3f! Of / Figure 20-521

Claims (1)

[Claims] 1. A roller conveyor having a large number of idling rollers and an endless rotating body disposed along these idling rollers and interlocked with a drive device is disposed on the shelf frame with its conveyance direction being horizontal, The group of idle rollers is divided into a plurality of groups in the conveyance direction, and each group can be connected to and separated from the endless rotating body via a switching device, and a load detection device is provided for each group. Two groups adjacent in the direction are configured so that when the upstream group's inventory detector detects and the downstream group's inventory detector does not detect, the switching devices are configured to connect and operate at the same time, and the most downstream group The group is configured such that the switching device separates when the presence detector of the most downstream group becomes non-detecting; A shelving equipment using rollers, characterized in that the shelving equipment using rollers is configured to be driven at a set time when the arrival detector provided in the group detects the movement.