KR20230144209A - Freight classifying system - Google Patents

Abstract

The cargo sorting system according to the present invention includes a first input conveyor and a second input conveyor on which cargo is loaded; a cargo recognition device for recognizing identification codes of cargo transported through the first and second input conveyors, respectively; Equipped with a plurality of transfer wheels capable of changing direction, and changing the direction of the cargo transported by the first input conveyor and the second input conveyor, respectively, using the transport wheels according to the recognition information of the cargo recognized by the cargo recognition device. a wheel sorter disposed adjacent to the first input conveyor and the second input conveyor, respectively, to enable transfer; a first transfer conveyor and a second transfer conveyor respectively disposed adjacent to the wheel sorter so that cargo passing through the wheel sorter can be transferred to different destinations; and a control unit that controls the wheel sorter according to the recognition information of the cargo recognition device, wherein the wheel sorter is connected to a first inlet into which cargo transported by the first input conveyor flows and to the second input conveyor. It includes a second inlet into which cargo to be transported flows in, a first discharge part to discharge the cargo to the first transfer conveyor, and a second discharge part to discharge the cargo to the second transfer conveyor.

Description

Freight classification system{FREIGHT CLASSIFYING SYSTEM}

The present invention relates to a cargo classification system, and more specifically, to a cargo classification system that automatically classifies incoming cargo and transports the classified cargo to a preset destination.

The term logistics is an abbreviation for physical distribution and is a general term for the function or activity of effectively moving products and goods from producers to consumers. In other words, logistics refers to several activities such as packaging, unloading, transportation, storage, and information.

Typically, transporting products and goods goes through several processes such as packaging, storage, collection/loading, transportation, unloading/delivery, and storage. No matter what means of transportation is used, it is impossible to move products and goods without going through this process. Physical distribution (logistics) is a comprehensive view of the entire movement.

In recent years, mass production, mass sales, and mass consumption have become the trends of the times, and the importance of logistics is gradually increasing as the need to streamline the flow of materials between them has increased. For this reason, the demand for logistics warehouses is also increasing significantly.

A logistics warehouse generally refers to a storage warehouse for temporary or long-term storage of all items used in daily life, such as various foodstuffs, beverages, clothing, home appliances, miscellaneous goods, and industrial supplies produced in large quantities at a factory or production site. Due to the recent rapid development of the logistics industry, these logistics warehouses are designed and constructed to go beyond simple logistics management and promote the creation of new businesses such as inventory management, as well as efficient stock placement and inventory management within the warehouse. there is.

Because rapid receipt and release of cargo is essential to these warehouses, most are equipped with mechanized or automated means of loading and unloading cargo. Typically, automated equipment such as stacker cranes, shuttles, lifts, and transfer conveyors are used in logistics warehouses. In addition, sorter devices that can automatically sort various cargoes according to specific classification criteria set by the user are also used in logistics warehouses.

Recently, online shopping and subsequent delivery services have been increasing due to the development of information and communication technology, and due to this change in shopping methods, large quantities of goods are being distributed in a small quantity order pattern of various products. According to this trend, it is becoming more important to improve the classification accuracy of cargo in logistics warehouses and transport cargo to the correct location. Additionally, there is a need for an improved system that can increase the efficiency of cargo sorting and improve the speed of cargo sorting.

Public Patent Publication No. 2020-0001161 (2020. 01. 06.)

The present invention was developed in consideration of the above-described points, and provides a cargo classification system that can sequentially and quickly classify cargo inputted through a plurality of input conveyors and smoothly transport the classified cargo to each destination. The purpose is to

The cargo sorting system according to the present invention for solving the above-described object includes a first input conveyor and a second input conveyor on which cargo is loaded; a cargo recognition device for recognizing identification codes of cargo transported through the first and second input conveyors, respectively; Equipped with a plurality of transfer wheels capable of changing direction, and changing the direction of the cargo transported by the first input conveyor and the second input conveyor, respectively, using the transport wheels according to the recognition information of the cargo recognized by the cargo recognition device. a wheel sorter disposed adjacent to the first input conveyor and the second input conveyor, respectively, to enable transfer; a first transfer conveyor and a second transfer conveyor respectively disposed adjacent to the wheel sorter so that cargo passing through the wheel sorter can be transferred to different destinations; and a control unit that controls the wheel sorter according to the recognition information of the cargo recognition device, wherein the wheel sorter is connected to a first inlet into which cargo transported by the first input conveyor flows and to the second input conveyor. It includes a second inlet into which cargo to be transported flows in, a first discharge part to discharge the cargo to the first transfer conveyor, and a second discharge part to discharge the cargo to the second transfer conveyor.

The cargo sorting system according to the present invention includes a first stopper unit for temporarily stopping the cargo transported by the first input conveyor in a first waiting zone disposed upstream of the first inlet based on the cargo transfer direction; And a second stopper unit for temporarily stopping the cargo transported by the second input conveyor in a second waiting zone disposed upstream of the second inlet, wherein the control unit controls the cargo transported by the first input conveyor. The first stopper unit and the second stopper unit can be controlled so that the cargo being transported and the cargo being transported by the second input conveyor are inputted into the wheel sorter with a time difference.

The control unit controls the first input conveyor and the second input conveyor so that the cargo transported by the first input conveyor and the cargo transported by the second input conveyor are inputted into the wheel sorter with a time difference. You can.

The plurality of transfer wheels constitute a first transfer wheel group constituting a first front transfer unit for transferring cargo flowing into the first inlet, and a second front transfer unit for transferring cargo flowing into the second inlet. a third transfer wheel group constituting a second transfer wheel group, a first rear transfer unit for transferring the first transfer wheel group or cargo transferred by the second transfer wheel group to the first discharge unit, and It is divided into a fourth transfer wheel group constituting a second rear transfer unit for transferring the cargo transferred by the first transfer wheel group or the second transfer wheel group to the second discharge unit, and the control unit operates on the first front transfer unit. In addition, the plurality of transfer wheels can be controlled so that the second front transfer unit, the first rear transfer unit, and the second rear transfer unit can each operate individually.

The cargo classification system according to the present invention includes a sensor unit for detecting cargo placed on the first front transfer unit, the second front transfer unit, the first rear transfer unit, and the second rear transfer unit, and the control unit Controls the wheel sorter according to the detection signal of the sensor unit, but ensures that two or more cargoes are not placed on each of the first front transfer unit, the second front transfer unit, the first rear transfer unit, and the second rear transfer unit. It is possible to control the cargo transfer speed and cargo transfer direction of each of the first front transfer unit, the second front transfer unit, the first rear transfer unit, and the second rear transfer unit.

The cargo sorting system according to the present invention is loaded with cargo and is installed on a separate input conveyor disposed adjacent to the wheel sorter to transfer cargo to the wheel sorter or to the wheel sorter to transport cargo passing through the wheel sorter. It may include a separate transfer conveyor disposed adjacently.

The cargo sorting system according to the present invention can quickly sort cargo inputted through a plurality of input conveyors using a wheel sorter, and transport the sorted cargo to each destination through a plurality of transfer conveyors. Therefore, the efficiency of cargo sorting can be increased and the speed of cargo sorting can be improved.

1 is a plan view showing a portion of a cargo classification system according to an embodiment of the present invention.
Figure 2 is a block diagram showing a partial configuration of a cargo classification system according to an embodiment of the present invention.
Figure 3 is a side view showing a wheel sorter of a cargo sorting system according to an embodiment of the present invention.
Figure 4 is for explaining the operation of the cargo classification system according to an embodiment of the present invention.
Figure 5 is a plan view showing a portion of a cargo classification system according to another embodiment of the present invention.
Figure 6 is a plan view showing a portion of a cargo classification system according to another embodiment of the present invention.
Figure 7 is a block diagram showing a partial configuration of the cargo classification system shown in Figure 6.
Figure 8 is for explaining the operation of the cargo classification system shown in Figure 6.
Figure 9 is a plan view showing a portion of a cargo classification system according to another embodiment of the present invention.
Figure 10 is a side view showing a portion of the cargo classification system shown in Figure 9.
Figure 11 is a block diagram showing a partial configuration of the cargo classification system shown in Figure 9.
Figures 12 and 13 are for explaining the operation of the cargo classification system shown in Figure 9.

Hereinafter, the cargo transport system according to the present invention will be described in detail with reference to the drawings.

Figure 1 is a plan view showing a portion of a cargo classification system according to an embodiment of the present invention, Figure 2 is a block diagram showing a partial configuration of a cargo classification system according to an embodiment of the present invention, and Figure 3 is a schematic diagram of a cargo classification system according to an embodiment of the present invention. This is a side view showing a wheel sorter of a cargo classification system according to an embodiment.

As shown in the drawing, the cargo classification system 100 according to an embodiment of the present invention includes a first input conveyor 110 and a second input conveyor 120 on which cargo (F) is loaded, and cargo (F) to be transported ), a cargo recognition device 130 for recognizing the recognition code, a wheel sorter 160 that can transfer the transported cargo (F) by changing its direction, and a cargo (F) passing through the wheel sorter (160). It includes a first transfer conveyor 140 and a second transfer conveyor 150 for transfer, and a control unit 180 for controlling the overall operation of the cargo classification system 100. The cargo sorting system 100 according to an embodiment of the present invention quickly sorts the cargo (F) input into the plurality of input conveyors 110 and 120 using the wheel sorter 160 and sends the cargo (F) to the first transfer conveyor ( 140) or can be transferred to different destinations through the second transfer conveyor 150.

Hereinafter, the first transfer conveyor 140 transfers the classified cargo to a preset first destination, and the second transfer conveyor 150 transfers the classified cargo to a preset second destination. .

The first input conveyor 110 and the second input conveyor 120 are disposed adjacent to the wheel sorter 160 so that the cargo F loaded on each of them can be transferred to the wheel sorter 160. The cargo (F) inputted into the first input conveyor 110 and the second input conveyor 120 passes through the cargo recognition device 130 and reaches the wheel sorter 160. As the first input conveyor 110 and the second input conveyor 120, various types of conveyors capable of transporting cargo F, such as a belt conveyor, may be used.

The cargo recognition device 130 recognizes the identification code of the cargo (F) transported by the first input conveyor 110 or the second input conveyor 120. The identification code of cargo (F) can be printed or attached to the surface of cargo (F) in the form of a barcode or QR code. The cargo recognition device 130 may be of various types depending on the recognition code provided on the cargo F, such as a barcode scanner, QR code scanner, or RFID reader. The cargo recognition device 130 can obtain information about the cargo (F), such as the type of product and delivery address, by recognizing the recognition code. Recognition information recognized by the cargo recognition device 130 is transmitted to the control unit 180, and the control unit 180 can control the wheel sorter 160 according to the recognition information. The cargo recognition device 130 is arranged upstream of the wheel sorter 160 based on the cargo transfer direction (D). In the drawing, the cargo recognition device 130 includes a first recognition unit 131 disposed above the first input conveyor 110 and a second recognition unit 132 disposed above the second input conveyor 120. Although shown as being included, the cargo recognition device 130 may have various other configurations.

The wheel sorter 160 includes a plurality of transfer wheel units 161, a wheel drive unit 167 that provides driving force for operating the plurality of transfer wheel units 161, and a direction of the plurality of transfer wheel units 161. It includes a direction change driver 169 for switching.

The transfer wheel unit 161 includes a transfer wheel 162 installed with a portion exposed to the outside so as to contact the cargo F and provide moving force to the cargo F, and rotatably supports the transport wheel 162. It includes a support 163 that does. The transfer wheel 162 may receive rotational force from the wheel drive unit 167 and rotate about a central axis of rotation that intersects the cargo transfer direction (D). The support body 163 may rotate about a central axis of rotation that perpendicularly intersects the central axis of rotation of the transfer wheel 162. The support body 163 can rotate by receiving rotational force from the direction change driving unit 169. As the support 163 rotates, the direction of the transfer wheel 162 can be changed, and the direction of cargo transport by the transfer wheel 162 can be changed.

A plurality of transfer wheel units 161 may be sequentially arranged along a direction intersecting the cargo transfer direction (D) to form one unit module 165. A plurality of such unit modules 165 are arranged along the transport direction of the cargo (F). The plurality of transfer wheel units 161 constituting one unit module 165 are collectively controlled so that each transfer wheel 162 can rotate and change direction simultaneously. Additionally, the plurality of unit modules 165 may be individually controlled and operate independently.

The wheel drive unit 167 may provide rotational force to the plurality of transfer wheels 162. The wheel drive unit 167 may have various other configurations that can provide rotational force to the plurality of transport wheels 162 other than the configuration shown.

The direction change driving unit 169 changes the direction of the transfer wheel unit 161 so that the direction of cargo transfer by the transfer wheel unit 161 is changed. The direction change driving unit 169 may have various configurations capable of generating rotational force and transmitting it to each of the plurality of transfer wheel units 161.

The wheel sorter 160 has a first inlet 171 and a second inlet 172 through which the cargo (F) flows in, and a first discharge part 173 and a second outlet through which the cargo (F) is discharged ( 174). Cargo (F) transported by the first input conveyor 110 flows into the first inlet 171, and cargo (F) transported by the second input conveyor 120 flows into the second inlet 172. This flows in. And the cargo (F) passing through the first discharge unit 173 is transferred to the first transfer conveyor 140, and the cargo (F) passing through the second discharge unit 174 is transferred to the second transfer conveyor 150. is transported. Cargo F flowing into the first inlet 171 may be transferred to the first discharge part 173 or the second discharge part 174 according to the operation of the transfer wheels 162. Likewise, cargo F flowing into the second inlet 172 may be transferred to the first discharge part 173 or the second discharge part 174 according to the operation of the transfer wheels 162.

The first transfer conveyor 140 and the second transfer conveyor 150 are disposed adjacent to the wheel sorter 160 to transport the cargo F passing through the wheel sorter 160. The first transfer conveyor 140 and the second transfer conveyor 150 can transport cargo F passing through the wheel sorter 160 to different destinations. That is, cargo discharged from the wheel sorter 160 toward the first input conveyor 110 contains common information and can be transferred to the same first destination. Likewise, cargo discharged from the wheel sorter 160 toward the second input conveyor 120 may contain other common information and be transferred to the same second destination. As the first transfer conveyor 140 and the second transfer conveyor 150, various types of conveyors capable of transporting cargo F, such as a belt conveyor, may be used.

The control unit 180 controls the overall operation of the cargo classification system 100. That is, the control unit 180 receives recognition information from the cargo recognition device 130, and operates the first and second input conveyors 110 and 120, the wheel sorter 160, and the first transfer conveyor 140. And the second transfer conveyor 150 can be controlled. In particular, the control unit 180 controls the wheel sorter 160 according to the recognition information of the cargo (F) recognized by the cargo recognition device 130 to transfer the cargo (F) to the first transfer conveyor 140 or the second transport. It can be transported by conveyor (150). For example, if the cargo (F) transported by the first input conveyor 110 is classified as cargo to be transported to the first destination, the control unit 180 controls the cargo flowing into the first inlet 171. The wheel sorter 160 can be controlled so that (F) is transferred to the first transfer conveyor 140 through the first discharge unit 173.

Meanwhile, as shown in FIG. 4, when the cargo (F) flowing into the second inlet 172 from the second input conveyor 120 is classified as cargo to be transported to the first destination, the control unit 180 The wheel sorter 160 is controlled so that the cargo F flowing into the second inlet 172 is transferred to the first transfer conveyor 140 through the first discharge part 173. At this time, the control unit 180 adjusts the direction of the transfer wheels 162 so that the cargo (F) flowing into the second inlet 172 is diverted toward the first discharge unit 173 and controls the direction of the transfer wheels 162. The feed speed can be appropriately controlled. For example, when the transport wheels 162 transfer cargo by changing its direction, the cargo transfer speed of the transport wheels 162 may be controlled slower than when the transport wheels 162 transport the cargo without changing direction. .

Meanwhile, the control unit 180 may control the first input conveyor 110 and the second input conveyor 120 to prevent two or more loads from being placed on the wheel sorter 160. This is because when two or more cargoes are placed on the wheel sorter 160 at the same time, it is difficult to change direction and transport only one of the two cargoes. For example, when cargo flows into the wheel sorter 160 from the first input conveyor 110 and does not completely pass through the wheel sorter 160, the control unit 180 controls the cargo loaded on the second input conveyor 120. The transfer speed of the second input conveyor 120 can be lowered or the second input conveyor 120 can be temporarily stopped to prevent cargo from flowing into the wheel sorter 160.

As described above, the cargo sorting system 100 according to an embodiment of the present invention quickly sorts the cargo (F) input into the plurality of input conveyors 110 and 120 using the wheel sorter 160. , classified cargo (F) can be transported to each destination through a plurality of transfer conveyors 140 and 150. Therefore, the efficiency of cargo sorting can be increased and the speed of cargo sorting can be improved.

Meanwhile, Figure 5 is a plan view showing a portion of a cargo classification system according to another embodiment of the present invention.

The cargo sorting system 200 shown in FIG. 5 has an increased number of input conveyors compared to the cargo sorting system 100 described above. That is, the cargo classification system 200 includes three input conveyors 110, 120, and 210. Among these input conveyors 110, 120, and 210, the third input conveyor 210 is attached to the wheel sorter 220 to allow cargo (F) to flow into the third input portion 221 of the wheel sorter 220. are placed adjacently. The cargo recognition device 230 includes a first recognition unit 131 and a second recognition unit 132 to recognize the identification code of the cargo F transported by the three input conveyors 110, 120, and 210. and a third recognition unit 231.

In addition, the number of input conveyors can be changed in various ways. Additionally, the number of transfer conveyors is not limited to two and can be changed in various ways.

Meanwhile, Figure 6 is a plan view showing a portion of a cargo classification system according to another embodiment of the present invention, and Figure 7 is a block diagram showing a partial configuration of the cargo classification system shown in Figure 6.

The cargo classification system 300 shown in FIGS. 6 and 7 recognizes the first and second input conveyors 110 and 120 on which cargo (F) is loaded, and the identification code of the transported cargo (F). A cargo recognition device 130 for transporting cargo (F), a wheel sorter 160 that can transfer the cargo (F) by changing its direction, and a first transfer conveyor for transporting the cargo (F) passing through the wheel sorter (160). (140) and the second transfer conveyor 150, the first stopper unit 330 for temporarily stopping the cargo (F) transported by the first input conveyor 310, and the second input conveyor 320 It includes a second stopper unit 340 for temporarily stopping the cargo (F) being transported, and a control unit 180 for controlling the overall operation of the cargo classification system 300.

The first stopper unit 330 includes a stopper 331 that can move on the first input conveyor 310 so as to contact the cargo F and stop the cargo F. The first stopper unit 330 is controlled by the control unit 180 to temporarily stop the cargo (F) transported by the first input conveyor 310 in the first waiting zone 311 on the first input conveyor 310. You can do it. Here, the first waiting zone 311 is located upstream of the first inlet 171 based on the cargo transfer direction (D). Specifically, the first waiting zone 311 may be located between the cargo recognition device 130 and the first inlet 171.

The second stopper unit 340 may have the same configuration as the first stopper unit 330. The second stopper unit 340 is controlled by the control unit 180, and uses the stopper 331, which can move on the second input conveyor 320, to load the cargo (F) into the second input conveyor 320. It can be temporarily stopped in the waiting zone (321). Here, the second waiting zone 321 is disposed upstream of the first inlet 171 based on the cargo transfer direction (D). Specifically, the second waiting zone 321 may be located between the cargo recognition device 130 and the first inlet 171.

The control unit 180 may control the first stopper unit 330 or the second stopper unit 340 to prevent two or more loads F from being placed on the wheel sorter 160. For example, as shown in FIG. 8, when cargo F transported by the second input conveyor 320 flows into the wheel sorter 160, the control unit 180 controls the first input conveyor 310. The first stopper unit 330 can be operated so that the cargo being transported is temporarily stopped in the first waiting zone 311.

The cargo sorting system 300 according to this embodiment does not stop the input conveyors 110 and 120, but uses the stopper units 330 and 340 to sort the cargo F before it reaches the wheel sorter 160. It can be temporarily suspended.

The first stopper unit 330 and the second stopper unit 340 may be changed to various other configurations that can temporarily stop cargo in addition to the configuration shown.

Meanwhile, Figure 9 is a plan view showing a part of the cargo classification system according to another embodiment of the present invention, Figure 10 is a side view showing a part of the cargo classification system shown in Figure 9, and Figure 11 is a cargo classification shown in Figure 9. This is a block diagram showing some configurations of the system.

The cargo classification system 400 according to this embodiment includes a first input conveyor 110 and a second input conveyor 120 on which cargo (F) is loaded, and cargo for recognizing the identification code of the transported cargo (F) A recognition device 130, a wheel sorter 410 that can transfer the cargo (F) by changing its direction, and a first transfer conveyor (140) for transporting the cargo (F) passing through the wheel sorter (410) ) and a second transfer conveyor 150, a sensor unit 420 for detecting cargo placed on the wheel sorter 410, and a control unit 180 for controlling the overall operation of the cargo sorting system 400. do.

The wheel sorter 410 includes a plurality of transfer wheels 162 for transferring the cargo (F) by changing its direction, and the plurality of transfer wheels 162 are divided into first to fourth transfer wheel groups (G1) (G2) They can be controlled by grouping them into (G3) (G4). The first transfer wheel group G1 constitutes the first front transfer unit 411 disposed adjacent to the first inlet 171 to transfer the cargo F introduced into the first inlet 171. The second transfer wheel group G2 constitutes a second front transfer unit 412 disposed adjacent to the second inlet 172 to transfer the cargo F introduced into the second inlet 172. The third transfer wheel group G3 constitutes a first rear transfer unit 413 disposed adjacent to the first discharge unit 173 to transfer the cargo F to the first discharge unit 173. The fourth transport wheel group G4 constitutes a second rear transport unit 414 disposed adjacent to the second discharge unit 174 for transporting the cargo F to the second discharge unit 174. The first front transfer unit 411, the second front transfer unit 412, the first rear transfer unit 413, and the second rear transfer unit 414 may be individually controlled to operate individually.

The sensor unit 420 detects the cargo F placed on the first front transfer unit 411, the second front transfer unit 412, the first rear transfer unit 413, and the second rear transfer unit 414, A detection signal can be transmitted to the control unit 180. In the drawing, the sensor unit 420 is shown as being disposed on the upper side of the wheel sorter 160, but the installation location or specific configuration of the sensor unit 420 can be changed in various ways.

The control unit 180 controls the wheel sorter 410 according to the detection signal from the sensor unit 420. Specifically, the control unit 180 determines whether two or more cargoes are placed on each of the first front transfer unit 411, the second front transfer unit 412, the first rear transfer unit 413, and the second rear transfer unit 414. It is possible to control the cargo transfer speed and cargo transfer direction of each of the first front transfer unit 411, the second front transfer unit 412, the first rear transfer unit 413, and the second rear transfer unit 414.

As shown in FIG. 12, the destination of the cargo (F) flowing into the first inlet 171 from the first input conveyor 110 is the first destination, and the second inlet (F) flows from the second input conveyor 120 When the destination of the cargo (F) flowing into 172) is the second destination, the control unit 180 includes the first front transfer unit 411, the second front transfer unit 412, the first rear transfer unit 413, Each of the transfer wheels 162 of the second rear transfer unit 414 can be controlled to rotate without changing direction. At this time, the cargo (F) flowing into the first inlet 171 sequentially passes through the first front transfer unit 411 and the first rear transfer unit 413 and is transferred to the first transfer conveyor 140, and is transferred to the second inlet. The cargo (F) flowing into the unit 172 sequentially passes through the second front transfer unit 412 and the second rear transfer unit 414 and is transferred to the second transfer conveyor 150. In this case, the wheel sorter 410 can transport a plurality of cargoes (F) simultaneously, so the cargoes can be transported to their destination more quickly.

Meanwhile, as shown in FIG. 13, when the destination of the cargo (F) flowing into the second inlet 172 by the second input conveyor 120 is the first destination, the control unit 180 controls the second front transfer unit. The transfer wheels 162 of 412 and the second rear transfer unit 414 may be controlled to change direction and rotate. At this time, the cargo (F) is transferred toward the first rear transfer unit 413 by the second front transfer unit 412 and the second rear transfer unit 414, and is transferred to the first transfer conveyor 140 through the first rear transfer unit 413. can be discharged as

When cargo flowing into the second inlet 172 needs to be transferred to the first transport conveyor 140, only one of the second front transport part 412 and the second rear transport part 414 operates to change the direction of the cargo. can do. For example, if cargo can be transferred to the first front transfer unit 411 or the first rear transfer unit 413 using only the second front transfer unit 412, the second rear transfer unit 414 changes the direction of the cargo. may not be controlled. In addition, when cargo can be transferred to the first rear transport unit 413 using only the second rear transport unit 414, the second front transport unit 412 may not be controlled to change the direction of the cargo.

Similarly, when the cargo (F) flowing into the first inlet 171 must be transferred to the first transfer conveyor 140, both the first front transfer unit 411 and the first rear transfer unit 413 move in the direction of the cargo. may be controlled to change, or only one of the first front transfer unit 411 and the first rear transfer unit 413 may be controlled to change the direction of the cargo.

Meanwhile, cargo is placed on both the first front transfer unit 411 and the second front transfer unit 412, and one of the cargo placed on the first front transfer unit 411 and the second front transfer unit 412 needs to be changed in direction. When present, the cargo transfer speed of at least one of the first front transfer unit 411 and the second front transfer unit 412 is adjusted so that the cargo does not interfere with the first transfer conveyor 140 on the wheel sorter 410. Alternatively, it may be transferred to the second transfer conveyor 150.

In this embodiment, the transfer wheels 162 constituting the first front transfer unit 411, the second front transfer unit 412, the first rear transfer unit 413, and the second rear transfer unit 414 each have a plurality. are grouped into unit modules, and each unit module can be individually controlled. Additionally, the first front transfer unit 411, the second front transfer unit 412, the first rear transfer unit 413, and the second rear transfer unit 414 can each be replaced with a small-scale wheel sorter.

Although the present invention has been described above with preferred examples, the scope of the present invention is not limited to the form described and shown above.

For example, the number of input conveyors, transfer conveyors, and wheel sorters can be changed in various ways.

In addition, the drawing shows that the transport wheels 162 of the wheel sorter directly contact the cargo to transport the cargo, but a wheel sorter in which a belt that can contact the cargo is combined with the transport wheel is also possible.

Although the present invention has been shown and described in connection with preferred embodiments for illustrating the principles of the invention, the invention is not limited to the construction and operation as shown and described. Rather, those skilled in the art will understand that numerous changes and modifications can be made to the present invention without departing from the spirit and scope of the appended claims.

100, 200, 300, 400: Cargo classification system
110, 310: first input conveyor 120, 320: second input conveyor
130: Cargo recognition device 140: First transfer conveyor
150: second transfer conveyor 160, 220, 410: wheel sorter
162: transfer wheel 171: first inlet
172: second inlet 173: first outlet
174: second discharge unit 180: control unit
210: Third input conveyor 221: Third input unit
311: first waiting zone 321: second waiting zone
330: first stopper unit 331: stopper
340: second stopper unit 411: first front transfer unit
412: second front transfer unit 413: first rear transfer unit
414: second rear transfer unit 420: sensor unit

Claims (6)

A first input conveyor and a second input conveyor on which cargo is loaded;
a cargo recognition device for recognizing identification codes of cargo transported through the first and second input conveyors, respectively;
Equipped with a plurality of transfer wheels capable of changing direction, and changing the direction of the cargo transported by the first input conveyor and the second input conveyor, respectively, using the transport wheels according to the recognition information of the cargo recognized by the cargo recognition device. a wheel sorter disposed adjacent to the first input conveyor and the second input conveyor, respectively, to enable transfer;
a first transfer conveyor and a second transfer conveyor respectively disposed adjacent to the wheel sorter so that cargo passing through the wheel sorter can be transferred to different destinations; and
A control unit that controls the wheel sorter according to the recognition information of the cargo recognition device,
The wheel sorter includes a first inlet into which the cargo transported by the first input conveyor flows, a second inlet into which the cargo transported by the second input conveyor flows, and the cargo to the first transport conveyor. A cargo sorting system comprising a first discharge unit for discharging cargo and a second discharge unit for discharging cargo to the second transfer conveyor.
According to claim 1,
A first stopper unit for temporarily stopping the cargo transported by the first input conveyor in a first waiting zone disposed upstream of the first inlet based on the cargo transfer direction; and
It includes a second stopper unit for temporarily stopping the cargo transported by the second input conveyor in a second waiting zone disposed upstream of the second inlet,
The control unit controls the first stopper unit and the second stopper unit so that the cargo transported by the first input conveyor and the cargo transported by the second input conveyor are inputted into the wheel sorter with a time difference. A cargo classification system characterized in that.
According to claim 1,
The control unit controls the first input conveyor and the second input conveyor so that the cargo transported by the first input conveyor and the cargo transported by the second input conveyor are inputted into the wheel sorter with a time difference. A cargo classification system characterized in that.
According to claim 1,
The plurality of transfer wheels constitute a first transfer wheel group constituting a first front transfer unit for transporting cargo flowing into the first inlet, and a second front transfer unit for transporting cargo flowing into the second inlet. a third transport wheel group constituting a second transport wheel group, a first rear transport unit for transporting the first transport wheel group or cargo transported by the second transport wheel group to the first discharge unit, and It is divided into a fourth transfer wheel group constituting a second rear transfer unit for transferring the cargo transferred by the first transfer wheel group or the second transfer wheel group to the second discharge unit,
The control unit controls the plurality of transfer wheels so that the first front transfer unit, the second front transfer unit, the first rear transfer unit, and the second rear transfer unit can each operate individually. system.
According to claim 4,
It includes a sensor unit for detecting cargo placed on the first front transfer unit, the second front transfer unit, the first rear transfer unit, and the second rear transfer unit,
The control unit controls the wheel sorter according to the detection signal of the sensor unit, and controls two or more cargoes in each of the first front transfer unit, the second front transfer unit, the first rear transfer unit, and the second rear transfer unit. A cargo sorting system, characterized in that the cargo transfer speed and cargo transfer direction of each of the first front transfer unit, the second front transfer unit, the first rear transfer unit, and the second rear transfer unit are controlled to prevent the cargo from being placed.
According to claim 1,
A separate input conveyor arranged adjacent to the wheel sorter to load cargo and transfer the cargo to the wheel sorter, or a separate transfer conveyor arranged adjacent to the wheel sorter to transport cargo passing through the wheel sorter. A cargo classification system comprising:

Images