Empty tray conveying control system and method for manual operation area

Abstract

The invention discloses an empty tray conveying control system and method for a manual operation area. The system comprises a logistics conveying PLC, an operation area field terminal, a tray stacking machine, a conveyor and a shuttle vehicle. The logistics conveying PLC is in signal connection with the operation area on-site terminal, the code disc machine, the conveyor and the shuttle vehicle. The multi-stage conveyor platform is arranged in a finished product delivery area and is driven by a plurality of conveyors so as to convey trays placed on the conveyor platform; the tray stacking machine is arranged at one end of the conveyor platform and stacks empty trays output by the warehouse outlet area into groups according to the set number. And when the logistics conveying PLC receives an empty tray group application signal sent by the operation area on-site terminal, the logistics conveying PLC controls the tray stacking machine to be locked according to set time, so that the tray stacking machine stacks an empty tray group within the set time, and the logistics conveying PLC controls the conveyor and the shuttle vehicle to convey the corresponding empty tray group to a warehouse-out opening of a manual operation area according to a set planning path. The empty tray conveying efficiency can be improved, and the production cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of cigarette logistics, and more particularly to an empty pallet conveying control system and method for a manual operation area. Background Art

[0002] Cigarette logistics departments frequently transfer goods. Since incoming cigarettes are transported by truck without pallets and typically enter the high-bay warehouse of the receiving cigarette factory's finished product warehouse, they must be palletized in the finished product manual operation area (requiring empty pallet groups) before entering the warehouse. Typically, when empty pallets are needed in the finished product manual operation area, on-site operators in the manual operation area notify central control operators via intercom or phone. The central control operator then generates a task for removing the empty pallets from the warehouse in the WMS (Warehouse Management System). This task is then sent from the WMS to the WCS (Warehouse Control System), which dispatches a series of logistics equipment to transport the empty pallets to the finished product manual operation area. In a finished product high-bay warehouse system, the outbound delivery area is typically adjacent to the manual operation area. When finished products are shipped out, full pallets of cigarettes are unpalletized by robots in the outbound delivery area, resulting in a large number of empty pallets. These empty pallets are then transported individually to a palletizer. Normally, the palletizer groups the empty pallets into groups according to a certain number and then transports them directly to the high-bay warehouse. They cannot be transported directly to the finished product manual operation area for immediate use. This method of dispatching empty pallet groups from the high-bay warehouse, using the WMS through the WCS, requires a large amount of equipment to operate, resulting in low efficiency and energy waste. Therefore, it is crucial to quickly request empty pallet groups in the finished product handling area to reduce equipment travel, improve empty pallet delivery efficiency, and reduce energy consumption. Summary of the Invention

[0003] The present invention provides an empty pallet conveying control system and method for a manual operation area, which solves the problem of low efficiency and energy waste in the existing finished product manual operation area where an application for an empty pallet group requires the warehouse management system to issue an empty pallet group removal order task to the warehouse control system, and then the warehouse control system dispatches the empty pallet group to the finished product manual operation area. The method can improve the empty pallet conveying efficiency and reduce the production cost.

[0004] To achieve the above objectives, the present invention provides the following technical solutions:

[0005] An empty pallet conveying control system for manual operation areas, comprising: a logistics conveying PLC, an operation area field terminal, a palletizer, a conveyor, and a shuttle vehicle;

[0006] The logistics transport PLC is respectively connected to the on-site terminal of the operation area, the code machine, the conveyor and the shuttle vehicle by signal;

[0007] A multi-level conveyor platform is set up in the finished product outbound area, and the conveyor platform is driven by multiple conveyors to transport the pallets placed above;

[0008] The palletizer is arranged at one end of the conveyor platform and groups the empty pallets output from the outbound area into a set number of pallets.

[0009] When the logistics conveying PLC receives the signal requesting an empty pallet group from the on-site terminal in the operation area, it controls the palletizer to lock according to the set time, so that the palletizer can encode a group of empty pallets within the set time, and controls the conveyor and the shuttle car according to the set planned path to deliver the corresponding empty pallet group to the exit of the manual operation area.

[0010] Preferably, the conveyor comprises: a conveying motor and a frequency converter;

[0011] The conveying motor is connected to the frequency converter signal, and the frequency converter is connected to the logistics conveying PLC signal;

[0012] The logistics conveying PLC is also connected to the warehouse management system signal, and controls the conveying motor to run or stop according to the in and out scheduling instructions.

[0013] Preferably, the palletizing machine comprises: a door-shaped frame, a bottom conveyor, a lifting device, a lifting motor and a lifting chain;

[0014] The lifting motor is arranged at the top of the door-shaped frame, the bottom conveyor is arranged at the bottom of the door-shaped frame, the lifting chain is connected to the lifting motor drive, and the lifting device is arranged at the lower end of the lifting chain and moves up and down with the lifting chain to perform encoding operations on empty pallets.

[0015] Preferably, it further comprises: a manipulator;

[0016] The manipulator is arranged at the conveyor platform and is connected to the logistics conveying PLC signal for automated handling operations.

[0017] Preferably, it further comprises: a sorting machine;

[0018] The sorting machine is arranged on one side of a plurality of conveyor platforms, the sorting machine is arranged at the conveyor platform, and the sorting machine is connected to the logistics conveying PLC signal for automated sorting operations;

[0019] The logistics conveying PLC controls the conveyor, the manipulator, the palletizer and the sorting machine to collaboratively complete the outbound operation.

[0020] The present invention also provides an empty pallet conveying control method for a manual operation area, using the above-mentioned control system, comprising:

[0021] Create a subroutine for applying for an empty pallet group in the on-site terminal of the operation area to send a signal for applying for an empty pallet group;

[0022] Set up an outbound path from the palletizer to the outbound exit of the manual operation area for transporting empty pallet groups;

[0023] Upon receiving a signal for requesting an empty pallet group from the on-site terminal in the operation area, the palletizer is controlled to lock according to a set time, so that the palletizer can encode a group of empty pallets within the set time;

[0024] According to the outbound path, the conveyor and the shuttle are controlled to deliver the corresponding empty pallet group to the outbound port of the manual operation area.

[0025] Preferably, the control of the encoder to lock at a set time includes:

[0026] Lock the palletizer in the outbound area for 3 minutes so that the number of empty pallet groups formed by the palletizer within 3 minutes is greater than 1 group but less than 2 groups.

[0027] Preferably, the arrangement of the outbound path from the palletizer to the outbound exit of the manual operation area includes:

[0028] Obtain the first path with the shortest distance from the palletizer to the material conveying loading platform of the first shuttle vehicle;

[0029] Obtain a second path from the material delivery platform of the first shuttle vehicle to the material delivery platform of the second shuttle vehicle;

[0030] The running path from the second shuttle vehicle to the exit of the manual operation area is used as the third path;

[0031] The outbound path is formed by the first path, the second path, and the third path.

[0032] Preferably, controlling the conveyor and the shuttle vehicle according to the outbound path to deliver the corresponding empty pallet group to the outbound exit of the manual operation area includes:

[0033] transporting the corresponding empty pallet group to the loading platform of the first shuttle material conveyor through the first path;

[0034] The first shuttle transports the corresponding empty pallet group from the loading platform to the next-level conveyor platform corresponding to the second path, and the conveyor transports the empty pallet group to the material loading platform of the second shuttle so that the second shuttle can transport the corresponding empty pallet group.

[0035] The second shuttle transports the corresponding empty pallet group to the exit of the manual operation area through the third path.

[0036] Preferably, it also includes:

[0037] The number of empty pallet groups delivered to the delivery port of the manual operation area is obtained, and the number of empty pallet groups is reported to the warehouse management system so that the warehouse management system records the delivery of the empty pallet groups.

[0038] The present invention provides an empty pallet conveying control system and method for a manual operation area. The method applies for an empty pallet group to a logistics conveying PLC through an on-site terminal in the operation area, locks a palletizer according to a set time, and enables the palletizer to encode a group of empty pallets within the set time. The empty pallets are then conveyed to the exit of the manual operation area by a conveyor and a shuttle vehicle according to a set planned path. The method solves the problem of low efficiency and energy waste in the existing application of empty pallet groups in the manual operation area of finished products, which requires the warehouse management system to issue an empty pallet group removal order task to the warehouse control system, and then the warehouse control system dispatches the empty pallet groups to the manual operation area of finished products. The method can improve the empty pallet conveying efficiency and reduce the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the specific embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments.

[0040] Figure 1 The diagram is a schematic diagram of an empty pallet conveying control system for a manual operation area provided by the present invention.

[0041] Figure 2 It is a schematic diagram of the finished product delivery area provided by an embodiment of the present invention.

[0042] Figure 3 It is a schematic diagram of an empty pallet conveying control method for a manual operation area provided by the present invention. DETAILED DESCRIPTION

[0043] In order to enable those skilled in the art to better understand the solutions of the embodiments of the present invention, the embodiments of the present invention are further described in detail below with reference to the accompanying drawings and implementation methods.

[0044] In view of the current problems of low efficiency and energy waste in applying for empty pallet groups in the manual operation area of finished products, the present invention provides an empty pallet conveying control system and method for the manual operation area, which solves the problem of low efficiency and energy waste in the existing application of empty pallet groups in the manual operation area of finished products, which requires the warehouse management system to issue an empty pallet group removal order task to the warehouse control system, and then the warehouse control system dispatches and delivers the empty pallet groups to the manual operation area of finished products. The method can improve the empty pallet conveying efficiency and reduce the production cost.

[0045] like Figure 1 and Figure 2As shown, a control system for conveying empty pallets in a manual operation area includes: a logistics conveying PLC, an operation area on-site terminal, a palletizer, a conveyor and a shuttle. The logistics conveying PLC is respectively connected to the operation area on-site terminal, the palletizer, the conveyor and the shuttle by signal. A multi-level conveyor platform is set in the finished product outbound area, and the conveyor platform is driven by a plurality of conveyors to convey the pallets placed above. The palletizer is set at one end of the conveyor platform, and the empty pallets output from the outbound area are grouped according to a set number. When the logistics conveying PLC receives the empty pallet group application signal sent by the operation area on-site terminal, it controls the palletizer to lock according to the set time, so that the palletizer can group empty pallets within the set time, and controls the conveyor and the shuttle according to the set planned path to deliver the corresponding empty pallet group to the manual operation area outbound port.

[0046] Specifically, to ensure that empty pallets from the palletizer can be used in the finished product manual operation area, a button for requesting an empty pallet must be created on the on-site monitoring terminal in the manual operation area. This button must be assigned a variable, which can be linked to relevant industrial control data in the PLC via the network. The PLC must also create a subroutine to process the empty pallet request information. This ensures that when the request button is clicked on the on-site monitoring terminal, the request information is not only transmitted to the logistics and delivery PLC via the network, but the logistics and delivery PLC can also respond to the request in real time. A route is planned in the outbound area from the palletizer to the manual operation area's exit. This route must be the shortest, most economical, and feasible route, ensuring that the empty pallets are used. Upon receiving the empty pallet request signal from the on-site terminal in the operation area, the logistics and delivery PLC locks the palletizer in the outbound area for a set period of time (usually approximately three minutes). The time is set based on the normal outbound mode. The number of empty pallet groups formed by the palletizer within this time is greater than 1 group, but less than 2 groups. In this way, only one group of empty pallets can be formed within this time (3 minutes) and can be applied to the outbound exit of the manual operation area. Other empty pallet groups formed outside the locked time range can be put into storage normally and will not cause outbound confusion. The time it takes for the empty pallet group applied for by the palletizer to reach the outbound exit of the manual operation area through the pre-planned path is generally about 2 minutes. Therefore, the total time it takes for a group of empty pallets applied for by the palletizer to reach the outbound exit of the manual operation area is about 5 minutes. It takes at least 10 minutes to apply for a group of empty pallets by taking a delisting order.

[0047] In one embodiment, if Figure 2As shown, the system includes: logistics transportation PLC, operation area field terminal 6, palletizer 1, conveyor, first shuttle car 2, second shuttle car 3, manual operation area outbound port and other equipment, wherein the first shuttle car 2 and the second shuttle car 3 are used for transportation operations between conveyor platforms that are not adjacent in physical space; when the manual operation area needs an empty pallet group, in the normal outbound mode, the operator in the manual operation area clicks the button for applying for an empty pallet group on the operation area field terminal 6, and the information for applying for an empty pallet group is transmitted to the logistics transportation PLC through the network. After receiving the application information, the logistics transportation PLC will call several subroutines for processing the application and lock the palletizer 1 for 3 minutes. During the locking time, the palletizer forms a unique group of empty pallets. Under the control of the logistics conveying PLC, the pallet group will be transported from conveyor 5199, conveyor 5092, conveyor 5093, conveyor 5094, conveyor 5095, and conveyor 5096 to conveyor 5097 through the conveyor, and then the empty pallet group will be sent to conveyor 5069 by the first shuttle car 8, and transported to conveyor 5078 by conveyor 5067, conveyor 5070, conveyor 5071, conveyor 5072, conveyor 5073, conveyor 5074, conveyor 5075, conveyor 5076, and conveyor 5077. Then the empty pallet group will be transported to the outbound port of the manual operation area by the second shuttle car 3, completing the work of quickly applying for empty pallet groups in the finished product manual operation area.

[0048] Furthermore, the conveyor includes: a conveying motor and a frequency converter; the conveying motor is connected to the frequency converter signal, and the frequency converter is connected to the logistics conveying PLC signal; the logistics conveying PLC is also connected to the warehouse management system signal, and controls the conveying motor to run or stop according to the in and out scheduling instructions.

[0049] Furthermore, the palletizer includes: a portal frame, a bottom conveyor, a lifting device, a lifting motor and a lifting chain; the lifting motor is arranged at the top of the portal frame, the bottom conveyor is arranged at the bottom of the portal frame, the lifting chain is connected to the lifting motor drive, and the lifting device is arranged at the lower end of the lifting chain, and moves up and down with the lifting chain to perform palletizing operations on empty pallets.

[0050] In one embodiment, the mechanical components of the palletizer include a portal frame, a lifting chain, a lifting device, a bottom conveyor, and a shifting fork roller. The electrical components include a lifting motor, an upper position detection system, a lower position detection system, a bottom conveyor motor, and a pallet position detection system. The lifting motor is located at the top of the portal frame and drives the lifting chain. The lifting device is connected to the lower end of the lifting chain. The shifting fork is located at the outer edge of the bottom conveyor, at the same height as the bottom conveyor, and below the lifting device (but not directly below to prevent it from hitting the lifting device during a fall). The lifting device includes a shifting fork, a rotating roller, and a limit stop. The shifting fork is fixed to the rotating roller and can rotate approximately 90 degrees around the rotating roller. The limit stop is located outside the rotating roller, slightly above the horizontal height of the shifting fork. The inner side of the shifting fork (toward the bottom conveyor) extends approximately 12 cm beyond the rotating roller, and the outer side (toward the limit stop) extends 8 cm beyond the rotating roller. The distance between the rotating roller and the outer edge of the bottom conveyor is approximately 8 cm, while the distance between the limit stop and the rotating roller is approximately 4 cm. In the initial state, the lifting device is always in the upper position of the palletizer. In the absence of an empty pallet, the fork of the palletizer is longer on the inner side than on the outer side, that is, the inner side is heavier, so the fork will rotate around the rotating roller with the inner side downward and the outer side upward. At the same time, due to the presence of a limit baffle on the outer side of the rotating roller, the outer length of the fork is 8 cm, and the distance between the limit baffle and the rotating roller is nearly 4 cm. At the same time, since the horizontal height of the limit baffle is slightly higher than the horizontal height of the fork, the fork is restricted from further rotation and can only rotate to the horizontal direction at most.

[0051] When the unpacking robot in the outbound area completes the unpacking of cigarettes, the empty pallet will be transported to the bottom conveyor of the palletizer under the control of the conveying PLC. When the pallet in place detection is triggered, the palletizer lifting motor drives the lifting device downward through the lifting chain under the control of the conveying PLC. When the fork runs with the lifting device to the fork stick, it can only rotate upward on the inside and downward on the outside under the obstruction of the fork roller until the lifting unit reaches the lower position. When the lifting device reaches the lower position, it will trigger its upward movement signal, so that the lifting device will be able to move upward during the upward movement. During the process, the shift fork will be affected by gravity and rotate around the shift fork roller to do the inner side downward and the outer side upward, so that the shift fork will slowly transition to the horizontal position. Since the inner length of the shift fork (12 cm) is greater than the gap between the rotating rod and the conveyor (pallet) (8 cm), the shift fork will extend into the bottom of the pallet (suspended part) and lift the pallet. At the same time, since the outer side is restricted by the shift fork baffle, the shift fork is in a horizontal stable balance state at this time. In this way, the shift fork drives the pallet to move upward with the lifting unit to the upper position, completing the encoding work (the first one), and the subsequent encoding work is similar to the second time.

[0052] The system further includes: a manipulator 4; the manipulator 4 is arranged at the conveyor platform, and the manipulator 4 is connected to the logistics conveying PLC signal for automated handling operations.

[0053] The system also includes: a sorting machine; the sorting machine is arranged on one side of multiple conveyor platforms, the sorting machine is arranged at the conveyor platform, the sorting machine 5 is connected to the logistics conveying PLC signal for automated sorting operations; the logistics conveying PLC controls the conveyor, the manipulator, the palletizer and the sorting machine to collaboratively complete the outbound operation.

[0054] In practice, the shuttle's mechanical components consist of a load chain (load motor) and running wheels (running motor). Once the shuttle is in place, the load chain (load motor) transports materials from one conveyor platform to the load platform. The running wheels (running motor) transport materials to the next designated conveyor platform, running on two parallel guide rails within a closed channel. The electronic control system is controlled by a PLC, communicating with the PLC via a network and forming part of the PLC substation. Running is controlled by a servo, while loading is controlled by a frequency converter. The PLC precisely controls the shuttle through feedback systems such as the velocity and position loops. The shuttle's advantage is that it can achieve multiple correspondences between physically non-adjacent conveyor platforms, either one-to-many or many-to-many, resulting in high conveying efficiency, simple and diverse conveying paths, and space-saving equipment.

[0055] WMS, WCS, logistics transport PLC, conveyors, shuttles, robots, work area terminals, palletizers, and sorters communicate with each other through the network; while conveyors, shuttles, robots, work area terminals, palletizers and other equipment belong to the PLC control system with a master-slave station structure, and they generally communicate with each other through system buses such as Profibus or Profinet.

[0056] It can be seen that the present invention provides an empty pallet conveying control system for the manual operation area, which applies for an empty pallet group to the logistics conveying PLC through the on-site terminal of the operation area, locks the palletizer according to the set time, so that the palletizer can encode a group of empty pallets within the set time, and send them to the manual operation area exit by the conveyor and shuttle car according to the set planned path. This solves the problem of low efficiency and energy waste in the existing finished product manual operation area when applying for an empty pallet group, which requires the warehouse management system to issue an empty pallet group removal order task to the warehouse control system, and then the warehouse control system dispatches the empty pallet group to the finished product manual operation area. The empty pallet conveying efficiency can be improved and the production cost can be reduced.

[0057] Accordingly, if Figure 3 As shown, the present invention also provides an empty pallet conveying control method for a manual operation area, using the above-mentioned control system, comprising:

[0058] S1: Create a subroutine for applying for an empty pallet group in the on-site terminal of the work area to send a signal for applying for an empty pallet group.

[0059] S2: Set up an outbound path from the palletizer to the outbound port of the manual operation area for transporting empty pallet groups.

[0060] S3: upon receiving the signal for requesting an empty pallet group sent by the on-site terminal in the operation area, controlling the palletizer to lock according to a set time, so that the palletizer can encode a group of empty pallets within the set time.

[0061] S4: Control the conveyor and the shuttle according to the outbound path to deliver the corresponding empty pallet group to the outbound exit of the manual operation area.

[0062] Furthermore, the control of locking the palletizer according to the set time includes: locking the palletizer in the outbound area for 3 minutes, so that the number of empty pallet groups formed by the palletizer within 3 minutes is greater than 1 group but less than 2 groups.

[0063] Furthermore, the setting of the outbound path from the palletizing machine to the outbound exit of the manual operation area includes:

[0064] Obtain the first path with the shortest distance from the palletizer to the first shuttle vehicle material conveying loading platform.

[0065] A second path from the material delivery platform of the first shuttle vehicle to the material delivery platform of the second shuttle vehicle is obtained.

[0066] The running path from the second shuttle vehicle to the exit of the manual operation area is used as the third path.

[0067] The outbound path is formed by the first path, the second path, and the third path.

[0068] In one embodiment, the first path is the route of conveyor 5199, conveyor 5092, conveyor 5093, conveyor 5094, conveyor 5095, conveyor 5096, and conveyor 5097. The second path includes the route of the first shuttle and the route of conveyor 5067, conveyor 5070, conveyor 5071, conveyor 5072, conveyor 5073, conveyor 5074, conveyor 5075, conveyor 5076, conveyor 5077, and conveyor 5078. The third path is the route of the second shuttle.

[0069] Furthermore, controlling the conveyor and the shuttle according to the outbound path to deliver the corresponding empty pallet group to the outbound exit of the manual operation area includes:

[0070] transporting the corresponding empty pallet group to the loading platform of the first shuttle material conveyor through the first path;

[0071] The first shuttle transports the corresponding empty pallet group from the loading platform to the next-level conveyor platform corresponding to the second path, and is then transported by the conveyor to the material loading platform of the second shuttle so that the corresponding empty pallet group can be transferred to be transported by the second shuttle; the second shuttle transports the corresponding empty pallet group to the exit of the manual operation area via the third path.

[0072] The method further includes: obtaining the number of empty pallet groups delivered to the manual operation area outbound port, and reporting the number of empty pallet groups to the warehouse management system so that the warehouse management system records the outbound delivery of the empty pallet groups.

[0073] It can be seen that the present invention provides an empty pallet conveying control method for a manual operation area, which applies for an empty pallet group to the logistics conveying PLC through the on-site terminal of the operation area, locks the palletizer according to the set time, so that the palletizer can encode a group of empty pallets within the set time, and delivers them to the manual operation area exit by the conveyor and the shuttle car according to the set planned path. This solves the problem of low efficiency and energy waste in the existing finished product manual operation area when applying for an empty pallet group, which requires the warehouse management system to issue an empty pallet group removal order task to the warehouse control system, and then the warehouse control system dispatches the empty pallet group to the finished product manual operation area. The method can improve the empty pallet conveying efficiency and reduce the production cost.

[0074] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any ordinary technician in this industry can smoothly implement the present invention as shown in the drawings and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with this profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the scope of protection of the technical solution of the present invention.

Claims

1. An empty pallet conveying control system for a manual operation area, characterized in that: include: Logistics transportation PLC, operation area field terminal, palletizer, conveyor and shuttle vehicle; The logistics transport PLC is respectively connected to the on-site terminal of the operation area, the code machine, the conveyor and the shuttle vehicle by signal; A multi-level conveyor platform is set up in the finished product outbound area, and the conveyor platform is driven by multiple conveyors to transport the pallets placed above; The palletizer is arranged at one end of the conveyor platform and groups the empty pallets output from the outbound area into a set number of pallets. When the logistics conveying PLC receives the signal requesting an empty pallet group from the on-site terminal in the operation area, it controls the palletizer to lock according to the set time, so that the palletizer can encode a group of empty pallets within the set time, and controls the conveyor and the shuttle car according to the set planned path to deliver the corresponding empty pallet group to the exit of the manual operation area.

2. The empty pallet conveying control system for manual operation area according to claim 1 is characterized in that: The conveyor includes: a conveying motor and a frequency converter; The conveying motor is connected to the frequency converter signal, and the frequency converter is connected to the logistics conveying PLC signal; The logistics conveying PLC is also connected to the warehouse management system signal, and controls the conveying motor to run or stop according to the in and out scheduling instructions.

3. The empty pallet conveying control system for manual operation area according to claim 2 is characterized in that: The palletizing machine comprises: a door-shaped frame, a bottom conveyor, a lifting device, a lifting motor and a lifting chain; The lifting motor is arranged at the top of the door-shaped frame, the bottom conveyor is arranged at the bottom of the door-shaped frame, the lifting chain is connected to the lifting motor drive, and the lifting device is arranged at the lower end of the lifting chain and moves up and down with the lifting chain to perform encoding operations on empty pallets.

4. The empty pallet conveying control system for manual operation area according to claim 3 is characterized in that: Also includes: Robotic arm; The manipulator is arranged at the conveyor platform and is connected to the logistics conveying PLC signal for automated handling operations.

5. The empty pallet conveying control system for manual operation area according to claim 4 is characterized in that: Also includes: Sorting machines; The sorting machine is arranged on one side of a plurality of conveyor platforms, the sorting machine is arranged at the conveyor platform, and the sorting machine is connected to the logistics conveying PLC signal for automated sorting operations; The logistics conveying PLC controls the conveyor, the manipulator, the palletizer and the sorting machine to collaboratively complete the outbound operation.

6. A method for controlling the conveyance of empty pallets in a manual operation area, using the control system according to any one of claims 1 to 5, characterized in that: include: Create a subroutine for applying for an empty pallet group in the on-site terminal of the operation area to send a signal for applying for an empty pallet group; Set up an outbound path from the palletizer to the outbound exit of the manual operation area for transporting empty pallet groups; Upon receiving a signal for requesting an empty pallet group from the on-site terminal in the operation area, the palletizer is controlled to lock according to a set time, so that the palletizer can encode a group of empty pallets within the set time; According to the outbound path, the conveyor and the shuttle are controlled to deliver the corresponding empty pallet group to the outbound port of the manual operation area.

7. The empty pallet conveying control method for a manual operation area according to claim 6, characterized in that: The control of the encoder machine to lock according to the set time includes: Lock the palletizer in the outbound area for 3 minutes so that the number of empty pallet groups formed by the palletizer within 3 minutes is greater than 1 group but less than 2 groups.

8. The empty pallet conveying control method for a manual operation area according to claim 7, characterized in that: The method of setting the outbound path from the palletizing machine to the outbound exit of the manual operation area includes: Obtain the first path with the shortest distance from the palletizer to the material conveying loading platform of the first shuttle vehicle; Obtain a second path from the material delivery platform of the first shuttle vehicle to the material delivery platform of the second shuttle vehicle; The running path from the second shuttle vehicle to the exit of the manual operation area is used as the third path; The outbound path is formed by the first path, the second path, and the third path.

9. The empty pallet conveying control method for a manual operation area according to claim 8, characterized in that: The step of controlling the conveyor and the shuttle according to the outbound path to deliver the corresponding empty pallet group to the outbound exit of the manual operation area includes: transporting the corresponding empty pallet group to the loading platform of the first shuttle material conveyor through the first path; The first shuttle transports the corresponding empty pallet group from the loading platform to the next-level conveyor platform corresponding to the second path, and the conveyor transports the empty pallet group to the material loading platform of the second shuttle so that the second shuttle can transport the corresponding empty pallet group. The second shuttle transports the corresponding empty pallet group to the exit of the manual operation area through the third path.

10. The empty pallet conveying control method for a manual operation area according to claim 9, characterized in that: Also includes: The number of empty pallet groups delivered to the delivery port of the manual operation area is obtained, and the number of empty pallet groups is reported to the warehouse management system so that the warehouse management system records the delivery of the empty pallet groups.

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