JP4627348B2 - Rotary rack system - Google Patents

Description

[0001]
The present invention relates to a rotary rack system, and more particularly to a rotary rack system in which each stage of the rotary rack is connected by a bypass line.
[0002]
[Prior art]
As is well known, there is a type of rotary rack in which a large number of trays are connected in an annular shape with an endless chain and rotated by a drive sprocket so that a row of trays is rotated.
[0003]
This type of rotary rack is, for example, a high-rise rotary rack having a plurality of stages as disclosed in Japanese Utility Model Publication No. 3-13442. The goods are placed and sorted for each sorting destination, which is a large number of customers, for each stage while the cargo placed on the tray is rotated.
[0004]
In other words, this rotary rack is designed to perform loading and unloading while continuously moving the row of trays, thereby shortening the time required for loading and unloading and improving the efficiency of sorting the loads. .
[0005]
[Problems to be solved by the invention]
However, in this type of rotary rack, since each level is classified according to the sorting destination, the load that is stored in the rotary rack is identified in order to select the intended level at the time of storage.
[0006]
Therefore, since the loads that are continuously transferred are identified one by one, they are sorted and transferred to each stage, so that it takes time to control the position of the load, so sorting at the time of loading and unloading It had the problem that efficiency fell.
[0007]
The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a rotary rack system that can increase sorting efficiency during loading and unloading.
[0008]
[Means for Solving the Problems]
In order to solve the above problems, the rotary rack system of the present invention is a rotary rack having a plurality of tray rows in which a large number of trays are connected in a ring and are rotated by a drive sprocket,
Each stage of the rotary rack is provided with a warehousing opening and a warehousing opening, and each warehousing opening is provided with a warehousing line. It is characterized by being connected in the middle of the warehousing line and the warehousing line of the other stage .
According to this feature, since the load sent out from the shipping port of one stage is once placed on the storage line and then transferred to another predetermined stage, the loading control of the load becomes easy. In addition, since an elevator is not required for the transfer of the load of an upper stage and a load moves by a bypass line, the position control of a load can be performed with high efficiency.
[0009]
In the above rotary rack system, the bypass line connecting the upper and lower stages is preferably composed of an ascending bypass line and a descending bypass line.
In this way, the ascending bypass line and the descending bypass line can be used at the same time, thereby increasing the load transfer speed.
[0011]
In the above rotary rack system, it is preferable that a predetermined stage is a payout-only stage, and a predetermined number of payout ports are provided in the payout-only stage.
In this way, the load stored in each stage other than the exclusive delivery stage of the rotary rack is moved to the exclusive delivery stage using the bypass line, and the sorting line is appropriately arranged from the delivery port provided in the exclusive delivery stage. It will be possible to issue goods continuously.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an overall conceptual diagram of a rotary rack according to the first embodiment of the present invention, FIG. 2 is a plan view showing a loading / unloading port, and FIG. 3 is a perspective view showing a loading / unloading port.
[0013]
FIG. 1 shows a rotary rack 1 according to the present invention. The rotary rack 1 according to the present invention connects a large number of trays 2a in a ring shape with an endless chain (not shown) and is driven by a drive sprocket (not shown). By rotating, the tray row 2 is rotated in an elliptical shape in plan view.
[0014]
The tray row 2 is constructed in a plurality of stages in the vertical direction (in this embodiment, three stages), and the tray row 2 in each stage receives goods W to be stored in the empty tray 2a that is traveling according to the destination. A mouth A <b> 1 is provided, and the sorting ports 4 a, 4 b, and 4 c according to destinations are arranged at a plurality of locations along the tray row 2 on the downstream side of the warehousing port A <b> 1 in the running direction of the tray row 2. Further, a bypass line that connects the upper and lower stages, which will be described later, is provided on the downstream side, and on the downstream side of the sorting ports 4a, 4b, and 4c of the tray row 2, the outlets O1 and O2 to the bypass line, and the bypass A warehousing port A2 from the line, or a warehousing port O to the outside is provided on the downstream side.
[0015]
Conveyance conveyors 6a, 6b, 6c serving as warehousing lines are connected to the warehousing port A1 at each stage, and these warehousing ports A1 have the same speed as the traveling speed of the tray row 2 as shown in FIG. A drive roller conveyor 10 (hereinafter referred to as a conveyor) that can run in parallel is attached to each stage, and at a predetermined position of the conveyor 10 moves back and forth perpendicularly to the running direction of the tray 2a. A load transfer device 12 including a load pushing portion 11 that runs in parallel with the tray 2a is provided.
[0016]
The conveyor 10 is configured such that a plurality of rollers R are rotationally driven by a motor (not shown). And the load transfer apparatus 12 is comprised so that the load extrusion part 11 of the horizontally long structure substantially parallel to the conveyor 10 may be moved to the tray 2a in the front-back direction by a known extrusion mechanism.
[0017]
As shown in FIG. 2, the load extruding part 11 is a frame F having a U-shaped cross section and substantially parallel to the conveyor 10, and is synchronized with the traveling speed of the conveyor 10 by motors (not shown) at both ends of the frame F. A pair of pressing rollers PR1 and PR2 that are rotationally driven at a speed are pivotally supported, and an endless flat belt B is stretched around the pressing rollers PR1 and PR2.
[0018]
Here, as shown in FIG. 2, the tray 2a is configured in a rectangular parallelepiped box shape (see FIG. 3) having an open upper surface, and has an outer surface opened in a direction of running in an elliptical shape in plan view. The ID dogs D1, D2, D3... For identifying each tray 2a are fixed to the back surface of the tray 2a. Further, on the upstream side of the warehousing ports A1, A2, A3 and the warehousing ports O, O1, O2 in the tray row 2, for example, proximity not shown as a detector for identifying the ID dogs D1, D2, D3. A switch is provided.
[0019]
The load transfer device 12 configured as described above operates as follows. For example, the third tray row 2 will be described. As shown in FIG. 2, when the empty tray 2a1 identified by the proximity switch reaches the warehousing port A1, the traveling speed of the conveyor 10 is the same as the empty tray 2a1. When the synchronous speed is reached and the load W1 traveling at the synchronous speed corresponds to the inlet / outlet portion 8 of the empty tray 2a1, the flat belt B of the load transfer device 12 is activated at a speed synchronized with the empty tray 2a1, and at the same time When a load W1 traveling by operating a cylinder (not shown) of the load transfer device 12 is moved toward the empty tray 2a1 in a direction perpendicular to the tray row 2, and the load W1 is completely accommodated in the empty tray 2a1, The load transfer device 12 returns to the original position, and the traveling of the flat belt B of the load pusher 11 stops.
[0020]
Next, the sorting ports 4a, 4b, and 4c arranged in each stage will be described. In these sorting ports 4a, 4b and 4c, a conversion device 13 for obtaining a power source for delivering the load W in the tray 2a is arranged. As shown in FIG. The upper contact plate 28 and the lower contact plate 30 having a predetermined length are individually installed along the circuit path so as to correspond to the upper and lower sides of the conversion roller 18 projecting from the rear end of the rotating tray 2a. The upper abutting plate 28 and the lower abutting plate 30 are alternately brought into contact with the upper and lower sides of the conversion roller 18 that moves on the running path together with the tray 2a, so that the conversion roller 18 obtains a normal and reverse rotational force, This force is used as the operating force of the unloading device 20.
[0021]
Specifically, the upper contact plate 28 is provided at the lower ends of both inverted L-shaped brackets 32a and 32a pivotally supported by a pair of stands S1 and S1 disposed on both sides thereof. A rod of the cylinder C1 is pivotally supported at the extended end of the bracket 32a, and is configured to pivot up and down by the action of a rod that moves forward and backward by the cylinder C1.
[0022]
The lower abutment plate 30 is provided at the upper end of inverted L-shaped brackets 32b and 32b pivotally supported by a pair of stands S2 and S2 disposed on both sides thereof, and one bracket 32b. A rod of the cylinder C2 is pivotally supported at the extended end of the cylinder, and is configured to pivot up and down by the action of a rod that moves forward and backward by the cylinder C2.
[0023]
Next, reference numeral 20 denotes a load discharging device. The load discharging device 20 is operated by the driving force obtained by the conversion device 13 described above, and is provided in each tray 2a.
[0024]
The tray 2a is partitioned by a floor plate 15 on the bottom surface 14 of which the load W is placed, and is provided in the utility chamber on the lower surface of the floor plate 15. The utility chamber has an entrance / exit portion 8 for the tray 2a. The feed screw 16 is rotatably supported by bearings 17a and 17b fixed to both wall surfaces before and after the utility chamber toward the end, and is inserted into the end portion of the feed screw 16 protruding outside through the bearing 17b at the rear end. The conversion roller 18 is fixed.
[0025]
A holder 21 is screwed onto the feed screw 16, and a pair of guide rollers 23 that run on the bottom surface 14 of the tray 2 a are rotatably supported on both sides of the holder 21. On the upper surface of the holder 21 is fixed a T-shaped pushing member 22 having a T-shape in plan view, which is inserted through the floor plate 15 and bent in an inverted L-shape toward the front, and is configured to discharge the load W in the tray 2a to the outside. Yes.
[0026]
The conversion device 13 and the unloading device 20 configured as described above operate as follows. As shown in FIG. 3, for example, when the tray 2a1 identified by the proximity switch (not shown) reaches the corresponding predetermined sorting port 4a, the cylinder C1 is operated to retract the rod, and the bracket 32a is pivoted downward. The upper contact plate 28 is brought into contact with the upper surface of the conversion roller 18 of the tray 2a that is rotating.
[0027]
When the rotation in a predetermined direction is applied to the conversion roller 18 by the contact of the upper contact plate 28 and the feed screw 16 rotates forward, the pushing member 22 moves forward and the load W on the tray 2a is discharged to the sorting port 4a. .
[0028]
Next, by operating the cylinder C2 and pulling the rod downward, the bracket 32b pivots upward to bring the lower contact plate 30 into contact with the upper surface of the conversion roller 18 of the tray 2a.
[0029]
As a result, when the conversion roller 18 is reversely rotated by contact with the lower contact plate 30, the pushing member 22 moves backward via the feed screw 16 rotating in the same direction to return to the initial position behind the tray 2a. The series of unloading operations ends.
[0030]
Next, a bypass line according to the first embodiment of the present invention will be described. As shown in FIG. 1, the bypass line communicates the upper and lower stages of the rotary rack 1, and the first or second tray row 2 of the rotary rack 1 is, for example, an ascending belt constituted by a belt conveyor. The bypass line 3a and the downstream bypass line 3b are connected.
[0031]
That is, the exit port O1 of the first tray row 2 and the entrance port A2 of the second tray row 2 or the exit port O1 of the second tray row 2 and the entrance port A2 of the third tray row 2 are respectively upstream. They are connected by a bypass line 3a.
[0032]
Also, the exit tray O2 of the third tray row 2 and the entrance A3 of the second tray row 2 or the exit port O2 of the second tray row 2 and the entrance A3 of the first tray row 2 are down-bypass lines. Connected by 3b.
[0033]
Here, the exit port O1 connected to the entrance of the ascending bypass line 3a, the exit port O2 connected to the entrance of the descending bypass line 3b, and the exit port O to the outside of the tray row 2 are predetermined from the tray row 2. The conversion device 13 (see FIG. 3) having the same structure as that used for each of the sorting ports 4a, 4b, and 4c described above is used in order to dispense the load W.
[0034]
In addition, the warehousing port A2 connected to the exit of the ascending bypass line 3a and the warehousing port A3 connected to the exit of the descending bypass line 3b are described above in order to accommodate a predetermined load W in the running empty tray 2a. A load transfer device 12 (see FIG. 2) having the same structure as that used for the warehousing port A1 is used.
[0035]
Furthermore, the predetermined stage of the rotary rack 1 can be configured as a payout-only stage, and a predetermined number of sorting ports 4a, 4b, 4c can be provided in the payout-only stage.
[0036]
Next, the operation of the bypass line in the present embodiment will be described. First, as shown in FIG. 1, the load W1 identified by destination is loaded into the warehousing port A1 of each stage, but a predetermined load loaded into the warehousing port A1 of a specific stage (for example, the third stage). W1 is accommodated by the load transfer device 12 in the running empty tray 2a1 detected by the proximity switch before the warehousing port A1.
[0037]
When the empty tray 2a1 containing the predetermined load W1 reaches the predetermined sorting ports 4a, 4b, and 4c, it is discharged from the corresponding sorting port by the conversion device 13 and the load discharging device 20.
[0038]
However, when there is no corresponding destination of the load W1 in the sorting ports 4a, 4b, 4c of this specific stage, the stage other than this stage (one stage or two stages) is connected to the corresponding stage via the down bypass line 3b. It is conveyed and carried out from the designated predetermined sorting ports 4a, 4b, 4c.
[0039]
In addition, the predetermined load W1 carried into the second warehousing port A1 is placed in a stage other than the second stage (one stage or three stages) when there is no sorting port 4a, 4b, 4c corresponding to this stage. It is transported to the corresponding stage by the down bypass line 3b or the up bypass line 3a, and is carried out from the predetermined sorting ports 4a, 4b, 4c.
[0040]
Furthermore, the predetermined load W1 carried into the first-stage warehousing port A1 is placed in a stage other than the first stage (2nd or 3rd stage) if there is no sorting port 4a, 4b, 4c corresponding to this stage. It is transported to the corresponding stage by the upstream bypass line 3a and is transported out from the predetermined sorting ports 4a, 4b, 4c.
[0041]
In this way, since each stage is connected by the ascending bypass line 3a and the descending bypass line 3b, even if the load W is received without selecting the stage at the time of warehousing, the specific load W1 is intended. It can be transferred. Since the elevator is not required for transferring the upper and lower loads W and the loads W move on the ascending bypass line 3a or descending bypass line 3b, the position of the load W1 can be controlled with high efficiency.
[0042]
Further, the ascending bypass line 3a and the descending bypass line 3b can be used at the same time, and the transfer speed of the load is increased.
[0043]
In addition, when a predetermined stage is designated as a payout-only stage and a predetermined number of sorting ports 4a, 4b, 4c are provided for each destination in the payout-only stage, they are stored in each stage other than the payout-only stage of the rotary rack 1. The load W can be moved to the exclusive use stage by using the ascending bypass line 3a or the descending bypass line 3b, and the goods W can be continuously delivered to the sorting ports 4a, 4b, 4c as appropriate from the supply port provided in the exclusive delivery stage.
[0044]
Next, a bypass line according to a second embodiment of the present invention will be described. FIG. 4 is an overall conceptual diagram of a rotary rack according to the second embodiment of the present invention. In addition, about the same component as the component mentioned above, the same code | symbol is attached | subjected and the overlapping description is abbreviate | omitted.
[0045]
In the present embodiment, the conveyor conveyors 6a, 6b, 6c serving as warehousing lines are provided at the warehousing port A1 of each stage, and the bypass lines 3a that connect the upper and lower stages in the middle of the conveyors 6a, 6b, 6c, 3b is connected.
[0046]
Specifically, the warehousing port A1 provided in each stage and the warehousing ports A2 and A3 are provided in the middle of the conveyors 6a, 6b, and 6c in front of the warehousing port A1, respectively, and at least to the tray row 2 The warehousing port A1 is provided with a load transfer device 12 including a load extruding portion 11 that runs in parallel at the same speed as the rotating tray 2a.
[0047]
The tray row 2 downstream of the warehousing port A1 in the second to third tiers of the rotary rack 1 is provided with a warehousing port O2, each of which has a driving force for discharging the load W to the cargo discharging device 20. Is provided.
[0048]
Therefore, the respective outlets O2 of the third and second tray rows 2 are connected to the inlets A3 in the middle of the first and second transport conveyors 6a, 6b and 6c by the downstream bypass line 3b. ing.
[0049]
In addition, each exit port O2 of the first and second tray rows 2 and the second and third transport conveyors 6a, 6b, and 6c in the middle of the transport port A2 are connected by an upstream bypass line 3a. ing.
[0050]
As described above, when the load of each stage is transferred to the desired stage by the ascending bypass line 3a and the descending bypass line 3b, the cargo is always transferred to the warehousing port A2 or A3 in the middle of the conveyors 6a, 6b, and 6c. Be transported.
[0051]
By doing in this way, since the load W1 sent out from the exit port A2 or A3 of one stage is once loaded in the middle of the conveyors 6a, 6b, 6c and then transferred to another predetermined stage, Warehousing control becomes easy.
[0052]
Although the embodiments of the present invention have been described with reference to the drawings, the specific configuration is not limited to these embodiments, and modifications and additions within the scope of the present invention are included in the present invention. It is.
[0053]
【The invention's effect】
According to the present invention, the following effects can be obtained.
[0054]
(A) According to the invention described in claim 1, since the load sent out from the shipping port of one stage is once placed on the receiving line and then transferred to another predetermined stage, the loading control of the load is easy. It becomes. In addition, since an elevator is not required for the transfer of the load of an upper stage and a load moves by a bypass line, the position control of a load can be performed with high efficiency.
[0055]
(B) According to the invention described in claim 2, the upstream bypass line and the downstream bypass line can be used at the same time, and the load transfer speed is increased.
[0057]
( C ) According to the invention described in claim 3 , the load stored in each stage other than the exclusive stage for payout of the rotary rack is moved to the exclusive stage for delivery using the bypass line, and is provided in this exclusive stage for delivery. The goods can be continuously delivered to the sorting line as appropriate from the dispensed outlet.
[Brief description of the drawings]
FIG. 1 is an overall conceptual diagram of a rotary rack according to a first embodiment of the present invention.
FIG. 2 is a plan view showing a loading port for goods.
FIG. 3 is a perspective view showing a cargo exit port.
FIG. 4 is an overall conceptual diagram of a rotary rack according to a second embodiment of the present invention.
[Explanation of symbols]
1 rotary rack 2 tray row 2a tray 2a1 tray 3a ascending bypass line 3b descending bypass line 4a, 4b, 4c sorting ports 6a, 6b, 6c transport conveyor (warehouse line)
8 Entrance / Exit Port 10 Conveyor (Drive Roller Conveyor)
DESCRIPTION OF SYMBOLS 11 Load extrusion part 12 Load transfer apparatus 13 Conversion apparatus 14 Bottom face 15 Floor board 16 Feed screw 17a, 17b Bearing 18 Flat belt 20 Unloading apparatus 21 Holder 22 Extrusion member 23 Guide roller 28 Upper contact plate 30 Lower contact plate 32a, 32b Brackets A1, A2, A3 Receiving port B Conversion roller C1, C2 Cylinder D1, D2, D3 ID dog F Frame O, O1, O2 Reloading port PR1, PR2 Press roller R Roller S1, S2 Stand W Load W1 Load

Claims (3)

A rotary rack comprising a plurality of trays, each having a plurality of trays connected in an annular shape and rotated by a drive sprocket,
Each stage of the rotary rack is provided with a warehousing opening and a warehousing opening, and each warehousing opening is provided with a warehousing line. The rotary rack system is connected in the middle of the warehousing line and the warehousing line of the other stage . The rotary rack system according to claim 1, wherein the bypass lines connecting the upper and lower stages are composed of an ascending bypass line and a descending bypass line. The rotary rack system according to claim 1 or 2 , wherein the predetermined stage is a payout-only stage, and a predetermined number of payout ports are provided in the payout-only stage.

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