JPH03297707A - Conveyer for storage - Google Patents

Abstract

PURPOSE:To simplify constitution of and control for a conveyer for storage by connecting an ever-operating system to rollers at the time of non-cargo on a conveyer downstream end, and separating the above connection at the time of cargo-loading. CONSTITUTION:A transfer device 40 is ever driven with a motor 34 and a chain 30, which a cargo-loading detecting device 70 is provided on the downstream end part of a belt conveyer 10 to detect cargo-loading. When cargo- loading is undetected, a solenoid valve 74 is actuated to send air from an air supply device 72 to each cylinder device 46 via a hose 73, the solenoid valve 74, and a hose 71, and the transfer device 40 is connected to rollers 20 to carry cargo. When cargo-loading is detected, the transfer device 40 is separated from the rollers 20, the cargo is stopped its transfer to be stored. This constitution simplifies the composition of and control for the conveyer.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a storage conveyor that supports and stores pallets on which loads are placed and the loads themselves, and takes them out as needed.

BACKGROUND OF THE INVENTION Conventionally, this type of roller conveyor has been provided, for example, in the structure shown in Japanese Utility Model Application Laid-Open No. 1-118905. This conventional 'JfF4 construction has a group of idle rollers, a drive device that can be connected to and separated from these rollers, and a chino that is interlocked with these drive devices. It is divided into groups. Each group is provided with a valve device that separates and operates the drive device when cargo is present, and an operating circuit incorporating the valve device and the like is configured.

Problems to be Solved by the Invention According to the above conventional method, a valve device is provided for each group, which requires a large number of expensive valve devices, especially when the load is short and many groups are formed. , the number of them is considerable, and control is also complicated. In addition, it is a type in which a load put in from one side in the conveyance direction is taken out from the other side, so the structure is complicated, such as driving the chino forward and backward in order to take out a load put in from one side to the other side.

It is an object of the present invention to provide a storage conveyor which is simple in construction and control, yet allows a load loaded from one side to be removed from the other side.

Means for Solving the Problems In order to achieve the above object, the storage conveyor of the present invention has rollers freely rotatable on the main body frame side, and is constantly linked to a drive device and connected to the rollers. A separable transmission device is provided, a load detection device is provided at a downstream end in the conveying direction of the drive device, and the transmission device is configured to be connected and not moved when the load detection device does not detect the load.

According to the configuration of the present invention, for example, when a load is transferred to the downstream end by a forklift, the load detection device detects this load, and the transmission device moves separately, so that all the rollers are in a non-driving state. become.

Then, the next load is passed to the downstream end while pushing the previous load, and the non-driving state is continued because the load detection device detects the next load at this time. In this way loads can be supported and stored sequentially. When a forklift takes out a load at the downstream end, the presence detection device will not detect the presence of the load.
The transmission device connects and moves to transmit the driving force of the drive device to the rollers, forcing all the rollers to rotate at once. As a result, the group of loads is conveyed toward the downstream end, and when the first load reaches the downstream end and is detected by the load detection device, the transmission is separated and the forced conveyance is stopped.

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

In FIGS. 6 and 7, 1 is a shelf frame, which includes a plurality of left and right front columns 2, a plurality of left and right rear columns 3, a front cross member 4 that connects the front columns 2, and a rear column 3. Rear cross member 5 connecting
It is composed of a front and rear member 6 that connects the front strut 2 and the rear strut 3, and the like. Supports 2 and 3 of this shelf frame 1 and each material 4 to 6
A pair of left and right conveyors io, i are provided in the divided storage space 7, which is formed in between and has a plurality of compartments in the left and right direction and a plurality of stages in the vertical direction.
A storage conveyor 12 consisting of 1 is horizontally arranged with its conveyance direction 13 as the depth direction. That is, as shown in FIGS. 8 and 9, the conveyor frame 14 of one conveyor 10 is formed to have a cross-sectional shape.

The roller 20 made of resin is attached to the conveyor frame 14 via its roller shaft 21, and is freely rotatable around a roller axis 22. A guide rail 23 is disposed along the entire length at one corner of the bottom of the conveyor frame 14, and this guide rail 23 has a dovetail groove portion 24 on the outside and a pair of upper and lower guide portions 25, 26 on the inside. has. A plate-shaped nut body 27 is slidably fitted into the dovetail groove portion 24, and a bolt 28 passed through the conveyor frame 14 from the outside is engaged with the nut body 27 and tightened, thereby tightening the nut body 27 against the conveyor frame 14. The guide rail 23 can be fixed by

The Cheno 30, which is an example of a driving body, has an upper path connected to the upper guide section 25, and a lower path connected to the lower guide section 26.
will be supported and guided. The chino 30 is stretched between a driving sprocket 31 and a driven sprocket 32 via a guide sprocket 33, etc., and the driving sprocket 31 is operatively connected to a motor 34 (see FIG. 1).
. 35 indicates a conveyance route. 36 is a load, which is handled via a pallet 37.

A transmission device 40 is provided in the conveyor frame 14 between the rollers 20 and the guide rails 23 and is interlocked with the chino 30 and can be connected to and separated from the rollers 20 at will.

That is, the support frame 41 made of resin is connected to the conveyor frame 14.
one side support plate 42 that can be freely applied to the inner surface of the side plate and fit into the upper part of the guide rail 23; a pair of cover plates 43 extending 311 from the front and rear ends of this one side support plate 42 toward the other; and these covers. A support plate 44 connects the lower ends of the plates 43 and extends toward the other side, and this support plate 45 is integrated with the other end of the plate 44 and can be freely applied to the inner surface of the other side plate. It is formed. Here the receiver is plate 44
can be freely placed on the bottom plate, and the main body 4 of the cylinder device 46, which is an actuating device using fluid, is mounted on the top of the plate 44.
7 is integrally formed, and a pipe holding part 48 is provided at the bottom.
is provided. A bearing hole 49 is formed in the center of the one support plate 42, and the other support plate 45 is opposite to the bearing hole 49.
A loose fitting hole portion 50 is formed in the. Both support plates 42
．． A nut 51 is embedded in and fixed to 45, and the support frame 41 is fixed to the conveyor frame 14 side by fitting and tightening a bolt 52 passed through the conveyor frame 14 from the outside into the nut 51. The cylinder device 46
is constructed by fitting an expandable and contractible rubber body 53 onto the main body 47 from above and then fixing it with a band 54 or the like. The support shaft 55 along the roller axis 22 has one end fitted into the bearing hole 49 and the other end fitted into the loose fitting hole 5.
0, it becomes possible to freely swing downward by 1 within a certain range using the bearing hole portion 49 as a fulcrum. This support shaft 55
A sprocket 56, which is an example of a passive wheel and is always in mesh with the chino 30, is freely rotatably attached to the sprocket 56, and a transmission roller 57 is fitted onto the boss portion of the sprocket 56, so that both 56 and 57 are connected to each other. It can be rotated freely. The transmission roller 57 is made of urethane rubber, and its outer periphery can come into contact with and separate from the lower outer periphery of the roller 20 . A cylinder rubber receiver 58 attached to the other end of the support shaft 55
is brought into contact with the rubber body 53 from above, so that the transmission roller 57 is moved into contact with and away from the roller 20 from below by the operation of the cylinder device 46.

Pairs of the above-mentioned bending rollers 20 and transmission devices 40 are arranged every other pair, and an idle roller 59 is arranged between each roller 20 via a roller shaft 60.

The conveyor frame 62 of the other conveyor 11 is also formed to have a cross section and shape, and an idling roller 63 made of resin is disposed via a roller shaft 64.

A ring-shaped flange 38, 61, 65 is attached to the roller 20 and the idle roller 59, 63 at an intermediate position thereof. These flanges 38,61,65 are formed on the periphery or on the outward slope. At this time, the flange 38 on one side is located inside the contact portion of the transmission roller 57.

Further, from the upper end of one side plate of one conveyor frame 14, a cover 15 is provided which covers the above-mentioned abutting portion and reaches close to the flange 38.

As described above, the storage conveyor 12, which is composed of a pair of conveyors 10.11, has an inventory detection device 70 at the downstream end in the conveyance direction 13, as shown in FIG.
When the presence detection device 70 is not detecting, the transmission device 40
It is configured to connect and operate. That is, a supply/discharge port 71 is provided in which each cylinder device 46 is connected in series, and this supply/discharge hose 71 is connected to an air supply hose 73 from an air supply device 72 via a solenoid valve 74 so as to be able to communicate or shut off freely. ing. The presence detection device 70 is, for example, a photoelectronic switch, and when no detection is detected, the transmission device 40 simultaneously connects (air supply boss 73
The solenoid valve 74 is operated to establish communication between the supply and discharge port 71. Note that the inventory detection device 70 may be a mechanical valve or the like. 75 is a stopper, and 76 is a forklift l~.

Next, the warehousing and unloading operations of the cargo 36 in the above embodiment will be explained.

8 and 9, the solenoid valve 74 is switched to connect the air supply hose 73 to the supply/discharge hose 71, and the expansion of the cylinder device 40 due to air madness causes the support shaft 55 to swing upward, and the transmission roller 57 is shown pressed against the corresponding roller 20 from below. At this time, the chino 30 is constantly being driven by the motor 34, and therefore the sprocket 56 engaged with the chino 30 is rotating around the support shaft 55. Further, the transmission row 57 is in contact with the lower portion of the outer circumference of the roller 20, thereby forcibly rotating the roller 20 group. As a result, the pallet 37 on the conveyance path 35 is moved by the rollers 20 and idle rollers 5 of both conveyors 10 and 11.
9.63, and is conveyed on this conveyance path 35 while receiving the conveyance force due to the forced rotation of the rollers 20￥f. At this time, the idle roller 5 which is not driven
9.63 group performs follow-up rotation. Furthermore, the pallet 37 is
Since it is located between the flange 38.61 on one conveyor 10 and the flange 65 on the other conveyor 11, when it tries to shift laterally during conveyance, the receiver is stopped by these flanges 38.61.65, It won't fall off.

The storage conveyor 12 consisting of a pair of conveyors io and il basically conveys the pallets 3 as described above.
7 (load 36), but in reality, the conveyance control is performed based on whether the load detection device 70 detects or does not detect the pallet 37. That is, when the conveyance path 35 is empty and the pallet 37 is delivered to the downstream end by the forklift 76, as shown in FIG.
0 is detected, and based on the detection, the solenoid valve 74 is switched to cutoff and the transmission 40 is separated, and all the rollers 20 are in a non-driving state, so the pallet 37 is moved to the downstream end. It remains in place. Then, the next pallet 37 is delivered by the forklift 76, but at that time, the third pallet 37 is delivered.
As shown, the next pallet, 71-37, is passed to the downstream end while pushing the previous pallet 37. The movement of the front pallet 37 due to this pushing is carried out lightly and smoothly because the rollers 20 are not driven and can freely rotate.

Furthermore, since the next pallet 37 has been detected by the presence detection device 70, the non-driving due to the shutoff of the solenoid valve 74 continues. In this way, the pallets 37 are supported one after another,
FIG. 1 shows a state in which the entire length is stored. As shown in FIG. 4, when the pallet 37 at the downstream end is taken out by the forklift 76, the presence detection device 70 becomes non-detectable. Then, the solenoid valve 74 is switched to communication, the transmission device 40 is connected, and all the rollers 20 are forcibly rotated 1 at the same time. As a result, the pallet 37 group is conveyed to the downstream end side, and as shown in FIG.
When it reaches the downstream end and is detected by the presence detection device 70, the transmission device 40 moves to separate and the forced conveyance is stopped.

In the above embodiment, the transmission device 40 and the pair of rollers 20 are arranged every other time.
It may also be of a type in which a pair of rollers 20 are provided.

In the above embodiment, the storage conveyor 12 is made up of a pair of conveyors 10 and 11, but the storage conveyor 12 may also be a storage conveyor 12 that uses integral rollers in the left and right directions.

In the above embodiment, the storage conveyor 12 is built into the shelf frame 1, but it may also be installed on the floor.

Effects of the Invention According to the present invention having the above configuration, the loading of loads can be carried out easily and smoothly by making the rollers freely rotate, and by unloading the load at one end, each roller is forcibly rotated at once. The bacteria group can be transported to the downstream end side. In this way, although the structure and control are simple with one load detecting device, the load that is put in from the downstream end and stored can be taken out from the downstream end.

[Brief explanation of the drawing]

The drawings show an embodiment of the invention, with FIG. 1 being a schematic side view;
Figures 2 to 5 are schematic side views showing the state of use, Figure 6 is a side view of the shelving equipment, Figure 7 is a front view of the same, Figure 8 is a partially cutaway front view of the main part, Figure 9 The figure is a partially cutaway side view of the main part of the drive-side conveyor. 1... Shelf frame, 7... Compartment storage space, 10.11...
・Conveyor, 12...Storage conveyor, 13・
...Conveyance direction, 14...Conveyor frame, 20...
・Roller, 30... Cheno (driver), 36... Load, 37... Pallet, 40... Transmission device, 46...
・Cylinder device, 55... Support shaft, 56... Sprocket, 57... Transmission roller, 59... Idle roller,
63... Idle roller, 70... Stock presence detection device, 74
... Solenoid valve, 75... Stopper. 3 Japanese Patent Application Publication No. 3-297707 (5)

Claims (1)

[Claims] 1. A roller is disposed on the main body frame side so as to be freely rotatable, and a transmission device is provided that is always interlocked with a drive device and can be connected to and separated from the roller, and is located at the downstream end of the conveyance direction by the drive device. 1. A storage conveyor, comprising a load detection device, and configured to connect and operate the transmission device when the load detection device does not detect a load.