A logistics conveying system and method for multi-material mixed-line production

Abstract

The application discloses a logistics conveying system and method for multi-material mixed-line production. The logistics conveying system comprises a plurality of upstream devices, a plurality of downstream devices, a main logistics conveying line for connecting the upstream devices and the downstream devices, and a logistics conveying branch line configured for each device. One or more upstream devices produce one or more materials, which are conveyed to one or more downstream devices through the same main logistics conveying line. When the production frequencies of the upstream devices and the downstream devices are the same, the multiple materials produced by the upstream devices can be sequentially conveyed to the downstream devices through the main logistics conveying line. When the production frequencies of the upstream devices and the downstream devices are different, a logistics conveying line anti-blocking mechanism is triggered, and the logistics conveying branch line is started to buffer the materials that cannot be digested, so that the main line will not be blocked due to the fact that individual materials cannot be accepted. The application saves manpower and improves the production efficiency of the devices.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of logistics conveying, in particular to a logistics conveying system and method for multi-material mixed-line production. BACKGROUND

[0002] With the rapid development of new energy vehicles, more and more vehicle enterprises are entering the new energy field, thus bringing various differentiated battery demands. To meet this demand, multiple lines are often designed in the same production workshop, and the production of one or more batteries is realized through the change of tooling. In this case, a single logistics line corresponds to multiple battery conveyances, the production frequencies of upstream and downstream devices are inconsistent, or when the downstream device malfunctions and stops, there are serious problems such as material blocking and scheduling difficulties. In the form of multiple logistics lines corresponding to multiple battery conveyances, when switching back to the production of a single battery, multiple lines cannot be interconnected and complementary, resulting in problems such as reduced device utilization and reduced production capacity. In view of the above problems, manual intervention is often used to handle offline blocked batteries, and the weight of a single frame battery on the logistics line is about one hundred kilograms, which causes a large amount of work and complicated work. SUMMARY

[0003] The purpose of the present application is to provide a logistics conveying system and method for multi-material mixed-line production, which designs a logistics conveying line anti-blocking mechanism, configures a logistics conveying branch line for each device, buffers the trays loaded with materials that cannot be digested by the downstream device, and ensures that the main logistics conveying line will not be blocked due to the inability to accept individual materials.

[0004] To achieve the above purpose, the present application adopts the following technical solutions:

[0005] The present application provides a logistics conveying system for multi-material mixed-line production, comprising a plurality of upstream devices, a plurality of downstream devices, a main logistics conveying line connecting the upstream devices and the downstream devices, and a device logistics conveying line between each device and the main logistics conveying line, further comprising a logistics conveying branch line configured for each upstream device and downstream device, the logistics conveying branch line is configured at the end of the device logistics conveying line and adjacent to the main logistics conveying line, and is used to buffer the trays when the production frequencies of the upstream devices and the downstream devices are inconsistent;

[0006] Both ends of the logistics conveying branch line are configured with transplanting mechanisms for transporting trays between the logistics conveying branch line and the device logistics conveying line, and between the logistics conveying branch line and the main logistics conveying line;

[0007] When the upstream or downstream device malfunctions, the tray enters the logistics conveying branch line through the transplanting mechanism, and the buffering direction of the tray on the logistics conveying branch line is opposite to the running direction on the corresponding main logistics conveying line;

[0008] When the upstream or downstream equipment recovers from failure, the tray is transferred into the main logistics conveying line by the transplanting mechanism and transported along the corresponding tray conveying logic.

[0009] As a preferred embodiment, each of the upstream equipment and the downstream equipment is configured with a mechanical hand, a positioning mechanism, an equipment logistics conveying line, a transplanting mechanism and a hoist,

[0010] The mechanical hand is used to load the material produced by the equipment into the tray at the positioning mechanism;

[0011] The positioning mechanism is connected with the equipment logistics conveying line and used to convey the tray loaded with the material to the equipment logistics conveying line;

[0012] The equipment logistics conveying line comprises an upper conveying line and a lower conveying line, the upper conveying line is used to convey the tray loaded with the material, and the lower conveying line is used to convey the empty tray;

[0013] The transplanting mechanism is located at the end of the equipment logistics conveying line and adjacent to the main logistics conveying line, and is used to transfer the tray between the equipment logistics conveying line and the main logistics conveying line;

[0014] The hoist is located at the end of the equipment logistics conveying line and is used to transfer the tray between the upper layer and the lower layer of the equipment logistics conveying line.

[0015] Through the preferred embodiment, the tray is transferred between different logistics conveying lines.

[0016] As a preferred embodiment, the length of the logistics conveying branch line needs to meet:

[0017] L=L1*N;

[0018] N=S*M / P;

[0019] Wherein, L is the length of the logistics conveying branch line, L1 is the length of a single tray, N is the number of material trays that need to be temporarily stored in the logistics conveying branch line, S is the average failure downtime of the equipment, M is the production rhythm of the equipment, and P is the loading capacity of a single tray.

[0020] In the preferred embodiment, the length of the logistics conveying branch line is determined by statistical calculation of the average failure downtime of the equipment and the production rhythm of the equipment, so that the design of the logistics conveying branch line meets the actual production conditions and avoids the decrease of the buffer function caused by the inappropriate length.

[0021] The application also provides a logistics conveying method for multi-material mixed line production, which is realized based on the logistics conveying system for multi-material mixed line production.

[0022] When the upstream equipment and the downstream equipment have inconsistent production frequencies, the tray on the main logistics conveying line is transferred to the logistics conveying branch line of the faulty equipment for buffering until the fault is repaired and production is resumed, and then the tray on the logistics conveying branch line is transferred to the main logistics conveying line;

[0023] The inconsistent production frequencies of the upstream equipment and the downstream equipment include one or more upstream equipment faults and one or more downstream equipment faults.

[0024] As a preferred embodiment, when the one or more downstream equipment faults,

[0025] The material receiving speed on the upper conveying line of the equipment conveying line of the faulty equipment is reduced or stopped, and the tray loaded with the corresponding material on the upper layer of the main logistics conveying line cannot enter the upper conveying line of the equipment logistics conveying line of the downstream equipment; at this time, the tray loaded with the corresponding material on the upper layer of the main logistics conveying line is transported to the logistics conveying branch line of the faulty equipment for buffering by the transplanting mechanism;

[0026] When the downstream equipment fault is repaired and production is resumed, the tray on the logistics conveying branch line is transported to the upper layer of the main logistics conveying line by the transplanting mechanism.

[0027] The preferred embodiment provides a buffering mechanism for the tray loaded with material when the downstream equipment fails, ensuring that the main logistics conveying line will not be blocked due to the failure of individual materials to be accepted, and effectively improving the equipment utilization and production efficiency.

[0028] As a preferred embodiment, when the one or more upstream equipment faults,

[0029] The lower conveying line of the equipment conveying line of the faulty equipment cannot accommodate more empty trays, at which time the empty trays are transported to the logistics conveying branch line of the corresponding faulty equipment for buffering by the transplanting mechanism;

[0030] When the upstream equipment fault is repaired, the empty tray on the logistics conveying branch line is transported to the lower layer of the main logistics conveying line by the transplanting mechanism.

[0031] The preferred embodiment provides a buffering mechanism for the empty tray when the upstream equipment fails, ensuring that the main logistics conveying line will not be blocked, and effectively improving the equipment utilization and production efficiency.

[0032] As a preferred embodiment, the method further comprises:

[0033] When the upstream equipment and the downstream equipment have consistent production frequencies, each upstream equipment respectively produces material, which is loaded into the tray at the positioning mechanism by the mechanical hand, and then the tray enters the upper conveying line of the equipment logistics conveying line and enters the upper layer of the main logistics conveying line by the transplanting mechanism;

[0034] The tray loaded with the material produced by each upstream device is sequentially sent to the corresponding downstream device through the upper layer of the main material conveying line;

[0035] At the downstream device, the tray is transported to the upper layer of the device material conveying line by the transplanting mechanism, reaches the positioning mechanism, and the material is grabbed from the tray by the mechanical hand and put into the downstream device;

[0036] After the tray loaded with the material is emptied at the downstream device, the empty tray is transferred to the lower layer of the device material conveying line by the elevator, flows back to the lower layer of the device material conveying line of the upstream device through the lower layer of the main material conveying line, and then enters the upper layer of the conveying line through the elevator at the positioning mechanism to wait for loading of the material;

[0037] The above process is repeated to realize the circulation of the material and the tray between the upstream device and the downstream device.

[0038] In the preferred embodiment, the material conveying mechanism is given when the production frequencies of the upstream device and the downstream device are consistent. The material produced by the upstream device enters the main material conveying line at a certain frequency, and the downstream device receives the material at the same frequency, and the empty tray leaves the main material conveying line at the same frequency. The above process is repeated to realize the circulation of the material and the tray between the upstream device and the downstream device.

[0039] By using the above technical means, the present application has the following beneficial effects:

[0040] The present application discloses a material conveying system and method for mixed-line production of multiple materials. A material conveying branch line is configured for each device. When the production frequencies of the upstream device and the downstream device are different, a material conveying line anti-blocking mechanism is triggered to start the material conveying branch line to buffer the material that cannot be digested, so as to ensure that the main line will not be blocked due to the fact that individual material cannot be accepted. The present application saves manpower and improves the production efficiency of the device. BRIEF DESCRIPTION OF DRAWINGS

[0041] Figure 1 A material conveying system for mixed-line production of multiple materials according to the embodiment of the present application is shown in the figure;

[0042] Figure 2 A material conveying logic diagram for mixed-line production of multiple materials according to the embodiment of the present application is shown in the figure. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical scheme and advantages of the present application clearer, the present application is further described in detail below in combination with the embodiments and the drawings. Herein, the illustrative embodiments of the present application and their descriptions are used to explain the present application, but are not limiting to the present application.

[0044] It is also to be noted that, in order not to obscure the application with details that are not necessary to understand the solutions according to the application, only the structures and / or processing steps that are closely related to the solutions according to the application are shown in the drawings, while other details that are not closely related to the application are omitted.

[0045] It should be emphasized that the term "comprises / comprising" when used in this text, refers to the presence of the features, elements, steps or components, but does not exclude the presence or addition of one or more other features, elements, steps or components.

[0046] It is also to be noted that, if not otherwise specified, the term "connected" is used herein to mean not only directly connected, but also indirectly connected via intervening elements.

[0047] In the following, embodiments of the application will be described with reference to the accompanying drawings. In the drawings, identical reference signs refer to identical or similar components, or identical or similar steps.

[0048] It is to be emphasized that the step designations mentioned in the following are not to be understood as a limitation of the order of the steps, but it is to be understood that the steps can be performed in the order mentioned in the embodiments, but also in a different order, or that several steps are performed simultaneously.

[0049] A logistics conveying system for multi-material mixed-line production as shown in Figure 1 includes several upstream devices, several downstream devices and an intermediate logistics conveying line connecting the upstream and downstream devices. One or more upstream devices produce one or more materials, which are conveyed through the intermediate logistics conveying line to one or more downstream devices. In the production of batteries, after the winding (lamination) section, both the semi-finished batteries and the finished batteries are placed in trays and transferred between processes through the logistics conveying line. Figure 1 Upstream device one 101 produces material A, upstream device two 102 produces material B, and upstream device three 103 produces material C. The three materials A, B and C are conveyed through the main logistics conveying line 004 to the downstream devices, wherein material A enters downstream device one 201, material B enters downstream device two 202, and material C enters downstream device three 203. The three materials A, B and C enter the main logistics conveying line 004 in sequence, at which time the downstream device one 201, the downstream device two 202 and the downstream device three 203 receive the three materials A, B and C at the same speed as the production speed of the upstream device one 101, the upstream device two 102 and the upstream device three 103, and the three materials on the main logistics conveying line 004 are consumed in sequence.

[0050] Each of the upstream equipment and downstream equipment is configured with a manipulator, a positioning mechanism, an equipment logistics conveying line, a transplanting mechanism and an elevator, wherein the manipulator is used to load materials produced by the equipment into a tray at the positioning mechanism; the positioning mechanism is connected with the equipment logistics conveying line and is used to convey the tray loaded with materials to an upper layer of the equipment logistics conveying line; the equipment logistics conveying line comprises an upper layer conveying line and a lower layer conveying line, the upper layer conveying line is used to convey the tray loaded with materials, and the lower layer conveying line is used to convey an empty tray; the transplanting mechanism is located at an end of the equipment logistics conveying line and is adjacent to the main logistics conveying line, and is used to transport the tray between the equipment logistics conveying line and the main logistics conveying line; and the elevator is located at the end of the equipment logistics conveying line and is used to transfer the tray between the upper layer and the lower layer of the equipment logistics conveying line.

[0051] With reference to Figure 1 In the embodiment of the present application, the upstream equipment one 101 is configured with the manipulator one 1011, the positioning mechanism one 1012, the equipment logistics conveying line one 1013, the transplanting mechanism one 1014 and the elevator one 1018; the upstream equipment two 102 is configured with the manipulator two 1021, the positioning mechanism two 1022, the equipment logistics conveying line two 1023, the transplanting mechanism two 1024 and the elevator two 1028; the upstream equipment three 103 is configured with the manipulator three 1031, the positioning mechanism three 1032, the equipment logistics conveying line three 1033, the transplanting mechanism three 1034 and the elevator three 1038; the downstream equipment one 201 is configured with the manipulator four 2011, the positioning mechanism four 2012, the equipment logistics conveying line four 2013, the transplanting mechanism four 2014 and the elevator four 2018; the downstream equipment two 202 is configured with the manipulator five 2021, the positioning mechanism five 2022, the equipment logistics conveying line five 2023, the transplanting mechanism five 2024 and the elevator five 2028; and the downstream equipment three 203 is configured with the manipulator six 2031, the positioning mechanism six 2032, the equipment logistics conveying line six 2033, the transplanting mechanism six 2034 and the elevator six 2038.

[0052] As described above, when the upstream device one 101 produces A material, the A material is loaded into the No. 01 tray by the mechanical arm one 1011 at the positioning mechanism one 1012, and then the No. 01 tray enters the upper layer of the device logistics conveying line one 1013 and is transferred to the upper layer of the main logistics conveying line 004 by the transplanting mechanism one 1014. Meanwhile, the upstream device two 102 produces B material, which is loaded into the No. 02 tray by the mechanical arm two 1021 at the positioning mechanism two 1022, and then the No. 02 tray enters the upper layer of the device logistics conveying line two 1023 and is transferred to the upper layer of the main logistics conveying line 004 by the transplanting mechanism two 1024, located behind the No. 01 tray. Meanwhile, the upstream device three 103 produces C material, which is loaded into the No. 03 tray by the mechanical arm three 1031 at the positioning mechanism three 1032; then the No. 03 tray enters the upper layer of the device logistics conveying line three 1033 and is transferred to the upper layer of the main logistics conveying line 004 by the transplanting mechanism three 1034, located behind the No. 02 tray. The three kinds of material trays of A, B and C are sequentially sent to the downstream through the upper layer of the main logistics conveying line 004, wherein the No. 01 tray containing A material is transferred to the upper layer of the device logistics conveying line four 2013 by the transplanting mechanism four 2014 to the positioning mechanism four 2012, and the A material is grabbed from the No. 01 tray by the mechanical arm four 2011 and placed into the downstream device one 201. The No. 02 tray containing B material is transferred to the upper layer of the device logistics conveying line five 2023 by the transplanting mechanism five 2024 to the positioning mechanism five 2022, and the B material is grabbed from the No. 02 tray by the mechanical arm five 2021 and placed into the downstream device two 202. The No. 03 tray containing C material is transferred to the upper layer of the device logistics conveying line six 2033 by the transplanting mechanism six 2034 to the positioning mechanism six 2032, and the C material is grabbed from the No. 03 tray by the mechanical arm six 2031 and placed into the downstream device three 203.

[0053] In the above process, after the No. 01 tray containing A material is emptied at the downstream device one 201, the empty No. 01 tray is transferred to the lower layer of the device logistics conveying line four 2013 by the elevator four 2018. The No. 01 empty tray is returned to the logistics conveying line one 1013 through the lower layer conveying line of the No. 01 full tray conveying path, and is transferred to the upper layer of the device logistics conveying line one 1013 by the elevator one 1018, waiting for loading A material at the positioning mechanism one 1012. Similarly, the No. 02 empty tray will be returned to the positioning mechanism two 1022 to wait for loading B material; the No. 03 empty tray will be returned to the positioning mechanism three 1032 to wait for loading C material. This cycle is repeated to realize the circulation of materials and trays between devices.

[0054] In the above process, the three materials will be continuously produced because the equipment production generally does not stop. Therefore, the upper layer of the main logistics conveying line 004 will simultaneously exist multiple A, B and C material pallets. When the upstream equipment 101 and the downstream equipment 201 maintain the same production efficiency, the upstream equipment 102 and the downstream equipment 202 maintain the same production efficiency, and the upstream equipment 103 and the downstream equipment 203 maintain the same production efficiency, the pallets loaded with A, B and C materials on the upper layer of the main logistics conveying line maintain a certain frequency to be consumed. That is, the upstream equipment 101 produces one A material pallet at the same time, and the downstream equipment 201 receives one A material pallet at the same frequency. Similarly, B and C materials enter the upper layer of the main logistics conveying line 004 at a certain frequency, and leave the upper layer of the main logistics conveying line 004 at the same frequency. The logistics pallets on the upper layer of the main logistics conveying line do not exist material blockage.

[0055] Based on the above multi-material mixed line production line, when the production frequencies of the upstream equipment and the downstream equipment are different, that is, one or more of the multiple downstream equipment fails to receive the corresponding material on the upper layer of the main logistics conveying line. Based on this, the embodiment of the present application designs a logistics conveying line anti-blocking mechanism, which configures a logistics conveying branch line for each equipment to cache the pallets loaded with materials that cannot be digested by the downstream equipment, so as to ensure that the upper layer of the main logistics conveying line will not be blocked due to the fact that individual materials cannot be accepted. Specifically,

[0056] Each upstream equipment and downstream equipment is configured with a logistics conveying branch line, which is located at the end of the equipment logistics conveying line and adjacent to the main logistics conveying line, and is used to cache the pallets when the upstream equipment and the downstream equipment have different frequencies.

[0057] Further, the two ends of the logistics conveying branch line are configured with transplanting mechanisms for transporting the pallets between the logistics conveying branch line and the equipment logistics conveying line, and between the logistics conveying branch line and the main logistics conveying line.

[0058] Referring to Figure 1 In the embodiment of the present application, the upstream equipment 101 is configured with a logistics conveying branch line 1015, a transplanting mechanism 1016 and a transplanting mechanism 1017; the upstream equipment 102 is configured with a logistics conveying branch line 1025, a transplanting mechanism 1026 and a transplanting mechanism 1027; the upstream equipment 103 is configured with a logistics conveying branch line 1035, a transplanting mechanism 1036 and a transplanting mechanism 1037; the downstream equipment 201 is configured with a logistics conveying branch line 2015, a transplanting mechanism 2016 and a transplanting mechanism 2017; the downstream equipment 202 is configured with a logistics conveying branch line 2025, a transplanting mechanism 2026 and a transplanting mechanism 2027; and the downstream equipment 203 is configured with a logistics conveying branch line 2035, a transplanting mechanism 2036 and a transplanting mechanism 2037.

[0059] In actual production process, when the downstream equipment 201 fails to reduce the production frequency or stop production, the A material receiving speed on the upper layer of the equipment logistics conveying line four 2013 is reduced or stopped, and the A material tray on the upper layer of the main logistics conveying line 004 cannot enter the upper layer of the equipment logistics conveying line four 2013. At this time, the logistics conveying line anti-blocking mechanism is started, and the tray loaded with A material on the upper layer of the main logistics conveying line 004 enters the logistics conveying branch line four 2015 through the transplanting mechanism four 2014 and the transplanting mechanism fourteen 2017 to wait.

[0060] When the downstream equipment 201 fails to reduce the production frequency or stop production, the A material receiving speed on the upper layer of the equipment logistics conveying line four 2013 is reduced or stopped, and the A material tray on the upper layer of the main logistics conveying line 004 cannot enter the upper layer of the equipment logistics conveying line four 2013. At this time, the logistics conveying line anti-blocking mechanism is started, and the tray loaded with A material on the upper layer of the main logistics conveying line 004 enters the logistics conveying branch line four 2015 through the transplanting mechanism four 2014 and the transplanting mechanism fourteen 2017 to wait.

[0061] Empty tray conveying scheduling logic is the same as above. When the upstream equipment 101 fails to stop, the equipment logistics conveying line one 1013 lower layer cannot accommodate more trays. At this time, the A material empty tray enters the logistics conveying branch line one 1015 through the transplanting mechanism eight 1017 to wait. When the upstream equipment 101 fails to repair, the A material empty tray enters the main logistics conveying line 004 lower layer through the transplanting mechanism seven 1016, and then transports with the above-mentioned empty tray conveying logic 01. Similarly, the full tray and empty tray conveying logic of B and C materials is the same.

[0062] It should be noted that the length of the logistics conveying branch line one 1015, the logistics conveying branch line two 1025, the logistics conveying branch line three 1035, the logistics conveying branch line four 2015, the logistics conveying branch line five 2025, and the logistics conveying branch line six 2035 needs to follow certain design principles. First, the average fault downtime S of the production equipment is calculated; second, the production rhythm M of the equipment is queried; third, the number N of material trays that need to be temporarily stored in the logistics conveying branch line is calculated: N=S*M / P, wherein P is the loading capacity of a single tray; fourth, the length L of the logistics conveying branch line is calculated: L=L1*N, wherein L1 is the length of a single tray.

[0063] Based on the above-mentioned logistics conveying system with logistics conveying line anti-blocking mechanism, the logistics conveying logic is as follows Figure 2 , including:

[0064] S1, the upstream equipment produces multiple materials;

[0065] S2, the material enters the upper layer of the main logistics conveying line to be transported downstream;

[0066] S3, whether the downstream equipment fails to stop, if not, S7 is entered; if yes, S4 is entered;

[0067] S4, the tray on the upper layer of the main logistics conveying line enters the logistics conveying branch line to be buffered;

[0068] S5, judging whether the fault equipment is repaired or not, if yes, entering S6;

[0069] S6, the tray on the logistics conveying branch line enters the upper layer of the main logistics conveying line orderly;

[0070] S7, the main logistics conveying line normally conveys, and the material enters the downstream equipment.

[0071] The above only describes the preferred embodiments of the present application, and it should be noted that, for those skilled in the art, some improvements and modifications can be made without departing from the technical principles of the present application, and these improvements and modifications should also be considered as the protection scope of the present application.

Claims

1. A multi-material mixed-line production logistics conveying system, comprising several upstream devices, several downstream devices, a main logistics conveying line connecting the upstream and downstream devices, and equipment logistics conveying lines between each device and the main logistics conveying line, characterized in that, It also includes a logistics conveying branch line configured for each upstream and downstream device. The logistics conveying branch line is configured at the end of the equipment logistics conveying line and adjacent to the main logistics conveying line, and is used to buffer pallets when the production frequencies of the upstream and downstream devices are inconsistent. Both ends of the logistics conveying branch line are equipped with a transfer mechanism for transporting pallets between the logistics conveying branch line and the equipment logistics conveying line, and between the logistics conveying branch line and the main logistics conveying line. When upstream or downstream equipment fails, the pallet enters the logistics conveyor branch line through the transfer mechanism. The buffer direction of the pallet on the logistics conveyor branch line is opposite to the running direction on the corresponding main logistics conveyor line. Once the upstream or downstream equipment malfunctions and is restored, the pallet enters the main logistics conveyor line via the transfer mechanism and is transported according to the corresponding pallet conveying logic.

2. The logistics conveying system for multi-material mixed-line production according to claim 1, characterized in that, Each of the upstream and downstream devices is equipped with a robotic arm, a positioning mechanism, a material transport line, a transplanting mechanism, and a hoist. The robotic arm is used to load the materials produced by the equipment into the tray at the positioning mechanism; The positioning mechanism is connected to the equipment logistics conveyor line and is used to transport the pallet loaded with materials to the equipment logistics conveyor line; The equipment logistics conveyor line includes an upper conveyor line and a lower conveyor line. The upper conveyor line is used to convey pallets loaded with materials, and the lower conveyor line is used to convey empty pallets. The transplanting mechanism is located at the end of the equipment logistics conveyor line, adjacent to the main logistics conveyor line, and is used to transport the pallet between the equipment logistics conveyor line and the main logistics conveyor line. The elevator is located at the end of the equipment logistics conveyor line and is used to transfer pallets between the upper and lower layers of the equipment logistics conveyor line.

3. The logistics conveying system for multi-material mixed-line production according to claim 1, characterized in that, The length of the logistics delivery branch line must meet the following requirements: L = L1 * N; N = S * M / P; Where L is the length of the logistics conveyor branch line, L1 is the length of a single pallet, N is the number of material pallets that need to be temporarily stored on the logistics conveyor branch line, S is the average downtime of the equipment, M is the production cycle time of the equipment, and P is the loading capacity of a single pallet.

4. A logistics conveying method for multi-material mixed-line production, characterized in that, Based on the multi-material mixed-line production logistics conveying system according to any one of claims 1 to 3, the method includes: When the production frequencies of upstream and downstream equipment are inconsistent, the pallets on the main logistics conveyor line are transferred to the logistics conveyor branch line of the faulty equipment for buffering until the fault is repaired and production resumes, and then the pallets on the logistics conveyor branch line are transferred back to the main logistics conveyor line. The inconsistency in production frequency between upstream and downstream equipment includes two scenarios: one or more upstream equipment failures and one or more downstream equipment failures.

5. The logistics conveying method for multi-material mixed-line production according to claim 4, characterized in that, When one or more downstream devices fail If the material receiving speed of the upper conveyor of the faulty equipment decreases or stops, the pallet containing the corresponding material on the upper layer of the main logistics conveyor cannot enter the upper conveyor of the downstream equipment's logistics conveyor. At this time, the pallet containing the corresponding material on the upper layer of the main logistics conveyor is transported to the logistics conveyor branch of the faulty equipment for buffering by a transfer mechanism. When downstream equipment malfunctions are repaired and production resumes, pallets on the logistics conveyor branch line are transported to the upper layer of the main logistics conveyor line via a transfer mechanism.

6. The logistics conveying method for multi-material mixed-line production according to claim 4, characterized in that, When one or more upstream devices fail, If the lower conveyor of the faulty equipment cannot accommodate more empty pallets, the empty pallets are transported to the corresponding logistics conveyor branch of the faulty equipment for buffering through a transfer mechanism. Once the upstream equipment is repaired, the empty pallets on the logistics conveyor branch line are transported to the lower level of the main logistics conveyor line via a transplanting mechanism.

7. The logistics conveying method for multi-material mixed-line production according to claim 4, characterized in that, The method further includes: When the production frequency of upstream and downstream equipment is consistent, each upstream equipment produces materials, which are then loaded into a pallet at the positioning mechanism by a robotic arm. The pallet then enters the upper conveyor of the equipment logistics conveyor line and enters the upper layer of the main logistics conveyor line through a transfer mechanism. Pallets containing materials produced by each upstream device are sequentially transported to the corresponding downstream device via the upper level of the main logistics conveyor line. At the downstream equipment, the pallet is transported to the upper conveyor of the equipment logistics conveyor line by the transplanting mechanism. When it reaches the positioning mechanism, the robot arm grabs the material from the pallet and puts it into the downstream equipment. After the material-filled pallet is completely removed at the downstream equipment, the empty pallet is transferred to the lower level of the equipment logistics conveyor line via the elevator. It then flows back to the lower level of the equipment logistics conveyor line of the upstream equipment via the lower level of the main logistics conveyor line, and then enters the upper level conveyor line via the elevator, where it waits to be loaded with material at the positioning mechanism. This cycle repeats continuously, enabling the flow of materials and pallets between upstream and downstream equipment.

Images