JPH0734005Y2 - Picking device - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an order picking system for a distribution center,
The present invention relates to a picking device used for an intermediate buffer or the like of a production line.

[Prior Art] FIGS. 4 to 7 show an example of a conventional picking device, in which a plurality of storage conveyors 3 are arranged in parallel so as to be able to convey a load 2 by rotation of a conveying roller 1.
Near the luggage replenishment side 3a and the luggage cutout side 3b of the storage conveyor 3, tracks 4 and 5 are laid in a direction perpendicular to the longitudinal direction of the storage conveyor 3, and the luggage replenishment side of the storage conveyor 3 is provided. On the track 4 of 3a, a replenisher 6 for feeding and replenishing the luggage 2 to the storage conveyor 3 is movably mounted, and the storage conveyor 3 is placed on the track 5 of the storage conveyor 3 on the side where the luggage is cut out 3b.
A slicing machine 7 for slicing the luggage 2 from the slab is placed so that it can travel freely.

At the lower part of one side of each transport roller 1 of the storage conveyor 3, a drive short shaft 8 extending from the package cutout side 3b of the storage conveyor 3 in the longitudinal direction of the storage conveyor 3 by a required length is provided with a required number of the package cutout sides 3b. Is rotatably arranged as the drive shaft of the transport roller 1 of
A plurality of conical friction rollers 9 are fitted in the longitudinal direction at required intervals, and between the required number of each conveying roller 1 and each of the friction rollers 9 on the parcel side 3b and the respective conveying rollers 1 are parallel to each other. An intermediate roller 11 rotatably supported by a roller shaft 10 extending in the direction is provided, and a coupling 12 is provided at an end of the drive short shaft 8 on the side of cutting out the load 3b.

The inclined outer peripheral surface of the friction roller 9 is pressed against the outer peripheral edge of the intermediate roller 11 on one end side, and the upper surface of the intermediate roller 11 is in contact with the lower surfaces of the two conveying rollers 1. The torque can be transmitted from the driving short shaft 8 to each of the conveying rollers 1 by the frictional force generated at each contact portion.

Further, a drive long shaft 13 extending in the longitudinal direction of the storage conveyor 3 over the entire length of the conveyor is disposed below the other end of each of the transport rollers 1 so as to be rotatable as a drive shaft of the remaining transport rollers 1. , The same friction rollers 9 as described above are externally fitted in the longitudinal direction at required intervals, and the remaining conveyance except for the friction rollers 9 and the conveyance roller 1 on the load cut-out side 3b to which torque is transmitted from the driving short shaft 8. The intermediate roller 11 similar to the one described above is arranged between the roller 1 and the drive long shaft 13
Torque transmission from the drive main shaft 13 and couplings 14 and 15 are provided at both ends of the drive long shaft 13.

Further, a stopper 16 that is opened and closed by a stopper releasing device (not shown) is provided at the end of the storage conveyor 3 on the side where the cargo is cut out 3b.

Further, each frame of the replenishing machine 6 and the cutting machine 7
A slide base 18 is installed on the slide unit 17 so as to slide toward the storage conveyor 3, and the frame 17 and the slide base 18 are connected by an air cylinder 19 which extends and contracts in parallel with the longitudinal direction of the storage conveyor 3.

Here, an actuator 20 for the drive long shaft 13 is provided on the lower surface of the slide base 18 of the replenishing machine 6, and an output shaft 21 of the actuator 20 is rotated to engage with a coupling 14 of the drive long shaft 13 when necessary. The head 22 is attached via the torque spring 23.

Further, an actuator 24 for the driving short shaft 8 and an actuator 25 for the driving long shaft 13 are provided on the lower surface of the slide base 18 of the cutting machine 7, respectively, and an output shaft 26 of the actuator 24 for the driving short shaft 8 is provided. Is a rotary head 27 that engages with the coupling 12 of the drive shaft 8 when necessary.
A rotary head 29 that engages with the coupling 15 of the drive long shaft 13 when necessary is attached to the output shaft 28 of the actuator 25 for 13 via torque springs 30 and 31, respectively.

Reference numeral 32 in the figure denotes a conveyor installed in the replenishing machine 6 and the cutting machine 7.

In the picking device as described above, when replenishing the luggage 2 to the storage conveyor 3, the replenishing machine 6 is used.
To the storage conveyor 3 to be replenished,
After stopping in front of a predetermined storage conveyor 3, the air cylinder 19 provided in the replenisher 6 is operated to push out the slide base 18, and the rotary head of the output shaft 28 of the actuator 20 for the storage conveyor 3 provided in the slide base 18 22 is the coupling of the drive long shaft 13 end of the storage conveyor 3
14 and then start the actuator 20,
A transport roller 1 for transporting luggage via the drive long shaft 13, the friction roller 9, and the intermediate roller 11 of the storage conveyor 3.
And the conveyor 32 of the replenishing machine 6 is driven, and the load 2 on the conveyor 32 is sent from the replenishing machine 6 to the storage conveyor 3.

Further, when the luggage 2 is cut out from the storage conveyor 3, the cutting machine 7 is run toward the storage conveyor 3 from which the luggage 2 should be cut out, and after stopping in front of the predetermined storage conveyor 3, a stopper release device (not shown) is used to stop the luggage. Air cylinder installed on the cutting machine 7 after releasing 16
When the slide base 18 is pushed out by actuating the slide base 18, the rotary head 27 of the actuator 24 for the drive short shaft 8 provided on the lower surface of the slide base 18 causes the coupling 12 of the drive short shaft 8 and the drive long shaft 13 to move. The rotary heads 29 of the actuators 25 are engaged with the couplings 15 of the drive long shaft 13, respectively.

When the rotary heads 27 and 29 are engaged with the couplings 14 and 15, first, the actuator 24 for the driving short shaft 8 is started, and the load shorting side 3b of the load cutting side 3b is driven through the driving short shaft 8, the friction roller 9, and the intermediate roller 11. By driving the conveying roller 1 for parcel unloading, the parcel 2 at the forefront end of the parcel unloading side 3b is carried out, and at the same time, the conveyor 32 of the logger 7 is driven to quarry the parcel 2 on the storage conveyor 3 to the quarter 7. To

When the frontmost load 2 is cut out by the cutting machine 7 as described above, the conveyor 32 of the cutting machine 7 is stopped and the stopper 16 is set up again, and then the actuator 25 for the drive long shaft 13 is simultaneously driven. All the transport rollers 1 of the sledge conveyor 3 are driven to transport the next load 2 to the stopper 16.

[Problems to be Solved by the Invention] However, in the above-described conventional picking device, the conveying roller 1 for cutting out a load, which is driven by the driving short shaft 8.
Is set in advance, and the setting of the transport rollers 1 for cutting out the parcel cannot be arbitrarily changed.
In the case of a load 2 having a short load length as indicated by a chain double-dashed line in FIG. 6, there are inconveniences such as cutting out two load 2 at a time.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a picking device capable of arbitrarily setting the setting of the transport roller for cutting out the load according to the load length of the load to be cut out.

[Means for Solving the Problems] The present invention relates to a storage conveyor configured to rotate and drive a plurality of transport rollers via a friction roller and an intermediate roller by rotation of a drive shaft, and a storage that transmits torque to the drive shaft. In a picking device consisting of a replenisher for supplying a load to a conveyor and a cutting machine for transmitting a torque to the drive shaft to cut out a load from the storage conveyor, a drive having friction rollers corresponding to all the transfer rollers of the storage conveyor. A long shaft and a drive short shaft having a friction roller corresponding to only a plurality of required transport rollers on the package cutting side are provided, and a friction roller provided on the drive short shaft and a drive long shaft position corresponding to the drive short shaft are provided. The intermediate rollers that can be independently contacted and separated from the friction rollers Equipped with la,
Only the required plurality of transport rollers located on the cutout side of the storage conveyor are selectively driven by the drive short axis or the drive long axis, and all other transport rollers are driven by the drive long axis. It is what

[Operation] Therefore, in the present invention, the intermediate roller is selectively and independently selected for each of the friction roller provided on the driving short shaft and the friction roller provided on the driving long shaft position corresponding to the driving short shaft. By bringing them into contact with and separating from each other, it becomes possible to drive one or more of the required plurality of transport rollers on the cut-out side by selecting either the drive long axis or the drive short axis. It becomes possible to drive only the required number of transport rollers located on the drive short shaft for cutting out the load.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

1 to 3 show an embodiment of the present invention, in which the same reference numerals as those in FIGS. 4 to 7 represent the same parts.

In the picking device 33 having substantially the same structure as the picking device shown in FIGS.
A short drive shaft 34 having a friction roller 9 for driving the conveying roller 1 in a required range of 3b is rotatably provided, and a storage conveyor is provided at the lower portion of the other end of each conveying roller 1 of the storage conveyor 3 on the other shaft end side. A drive long shaft 35 provided with a friction roller 9 for driving all the three transport rollers 1 is rotatably provided.

Further, two sets of each of the transport rollers 1 in the required range on the cargo cutting side 3b are set as one set, and below the space between the transport rollers 1 of each set,
A roller shaft 36 extending parallel to the conveying roller 1 is provided,
At both ends of each roller shaft 36, two intermediate rollers 37 contacting the lower surface of the conveying roller 1 of each set are respectively brought into contact with and separated from the friction rollers 9 on the driving short shaft 34 side and the driving long shaft 35 side, respectively. Be prepared to do so.

That is, two electromagnets 39 each having a concave portion 38 that opens outwardly are fitted and fixed to the intermediate portion of the roller shaft 36, and a compression spring 40 is disposed in the concave portion 38 of each electromagnet 39. Intermediate rollers provided at both ends of the roller shaft 36 so as to be rotatable and slidable in the axial direction of the roller shaft 36.
The repulsive force of the compression spring 40 makes it possible to bring the 37 into pressure contact with each friction roller 9, and the magnetic force generated by energizing each electromagnet 39 causes each intermediate roller 37 to resist the repulsive force of the compression spring 40. Then, it is configured to be attracted and separated from each friction roller 9.

The remaining conveyor rollers 1 of the storage conveyor 3 are provided with the same machine as the picking device shown in FIGS. 4 to 6, and the drive long shaft 35 to the friction roller 9,
The torque is transmitted via the intermediate roller 11.

Then, as shown in FIG. 2, when one of the two electromagnets 39 provided on each roller shaft 36 is selected and energized, the magnetic force of the electromagnet 39 on the energized side causes one intermediate roller 37 to friction on one side. It is separated from the roller 9, and only the other intermediate roller 37 is brought into pressure contact with the other friction roller 9 so that torque can be transmitted.

Therefore, according to the above, when the transport roller 1 in the required range on the package cutting side 3b is used for package cutting,
As shown in FIG. 3 and FIG. 3, it is possible to set so that a required number of transport rollers 1 can be driven by the drive short shaft 34 from the package cut-out side 3b of the storage conveyor 3 according to the package length of the package 2 and the package cutting device 7 can be used. With this, it is possible to reliably cut out the packages 2 one by one, and it is possible to cut out packages of various sizes.

The picking device of the present invention is not limited to the above-described embodiment, and the means for bringing the intermediate roller into contact with and separating from each other is not limited to the electromagnet and the compression spring. It goes without saying that various methods such as operation can be adopted, and various changes can be made without departing from the scope of the invention.

[Advantages of the Invention] As described above, according to the picking device of the present invention,
When using the required number of transport rollers 1 on the package cutout side for package extraction, set so that the required number of transport rollers can be driven by the drive minor axis from the package cutout side of the storage conveyor according to the load length of the package. Therefore, it is possible to surely cut out the packages one by one, and it is possible to obtain an excellent effect that it is possible to cut out packages of various sizes.

[Brief description of drawings]

1 is a plan view of an embodiment of the present invention, FIG. 2 is a plan view showing the operating state of FIG. 1, FIG. 3 is a view in the direction of III-III in FIG. 2, and FIG. FIG. 5 is a plan view showing an example of a conventional picking device, FIG. 5 is an enlarged view of the parcel extraction side of FIG. 4, FIG. 6 is a view in the direction of VI-VI of FIG. 5, and FIG. FIG. 7 is a view in the direction of arrow VII-VII in FIG. 4. In the figure, 1 is a conveying roller, 2 is a luggage, 3 is a storage conveyor, 3b is a luggage cutting side, 6 is a replenishing machine, 7 is a cutting machine, 9 is a friction roller, 33 is a picking device, 34
Is a drive short axis (drive axis), 35 is a drive long axis (drive axis), 36 is a roller shaft, and 37 is an intermediate roller.

Claims (1)

[Scope of utility model registration request] 1. A storage conveyor configured to rotationally drive a plurality of transport rollers via a friction roller and an intermediate roller by rotation of a drive shaft, and replenishment for supplying a load to the storage conveyor by transmitting torque to the drive shaft. Machine and a cutting machine for transmitting torque to the drive shaft to cut out a load from a storage conveyor, in a picking device, a drive long shaft having friction rollers corresponding to all the transfer rollers of the storage conveyor, and a load cutting side. And a drive minor axis having a friction roller corresponding to only the required plurality of transport rollers, and a friction roller provided at the drive minor axis and a friction roller provided at a drive major axis position corresponding to the drive minor axis, respectively. The storage device is provided with an intermediate roller that can independently come into contact with and separate from the storage device. It is characterized in that only a plurality of required transport rollers located on the cut-out side of the conveyor are selectively driven by the drive short axis or the drive long axis, and all other transport rollers are driven by the drive long axis. Picking device.