Multi-storey building underpants production device based on AGV and circulation method

Abstract

The production device comprises a first building and a second building, and a first-floor production unit, a second-floor production unit, a third-floor production unit, a fourth-floor production unit and an AGV trolley operating through a goods elevator are arranged in the four floors of the first building correspondingly; a raw material receiving area and a finished product stacking area are arranged in the first-layer production unit; a cloth loosening frame area, an opener area and a cutting bed assembly line are arranged in the four-layer production unit; a male trousers production line area, a folding machine area, a manual sewing area and a packaging module are distributed in the second-layer production unit; female pants production line areas are distributed in the third-floor production unit, a female pants manufacturing workshop and an elevator are arranged on the fourth floor in the second building, and the first building is communicated with the second building through a passageway. Accurate transfer of supplied materials between two buildings can be automatically completed, process partitioning is conducted through a multi-storey building structure, intensive configuration of production resources is achieved, the material carrying distance is shortened, and efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of underwear intelligent manufacturing, and particularly relates to a multi-floor underpants production device and flow transfer method based on AGV. BACKGROUND

[0002] In the process of the current underwear manufacturing industry moving towards intelligent manufacturing, from the perspective of fabric characteristics, the elastic fabric used in underpants production has extremely strict requirements on the transfer and processing conditions in the production process. Under the traditional manual carrying mode, frequent manual operation by workers can easily affect the dimensional stability and wearing life of finished underpants. According to relevant industry data statistics, the fabric defective rate caused by manual carrying is as high as 15%-20% in some factories, which seriously increases the production cost.

[0003] In terms of production process connection, underpants production covers multiple processes, and because of the large quantity, each process is often scattered on different floors. The inefficient transportation of manual carrying and traditional conveyors seriously restricts the improvement of overall production efficiency. Manual carrying is slow, and workers are prone to fatigue, making it difficult to maintain high-intensity work for a long time, resulting in a reduction in the actual effective working hours per day. The efficiency of manual carrying is only 30%-40% of that of automated equipment. At the same time, due to the unsmooth transfer of materials between floors, production links are frequently interrupted, which prolongs the equipment downtime and further reduces the equipment utilization rate, increasing the production cost per unit product.

[0004] Therefore, there is an urgent need for an innovative solution integrating AGV devices and optimizing flow transfer methods to promote the development of the underpants production industry towards intelligentization, high efficiency and high quality. SUMMARY

[0005] The present application aims to overcome the deficiencies of the prior art and provides a multi-floor underpants production device and flow transfer method based on AGV, which has the advantages of high processing quality of finished products, high processing efficiency and intelligentization.

[0006] To achieve the above-mentioned purpose, the technical scheme adopted by the present application is as follows: a multi-floor underpants production device based on AGV, comprising a first building, a second building and an AGV trolley; the first building has a one-layer production unit, a two-layer production unit, a three-layer production unit and a four-layer production unit distributed on four floors, and a freight elevator passing through the four floors; the second building has four floors and a lift passing through the four floors, and a fourth floor has a women's pants manufacturing workshop, the lift is connected to the four-layer production unit through a corridor; the AGV trolley moves between the one-layer production unit, the two-layer production unit, the three-layer production unit and the four-layer production unit through the freight elevator; the AGV trolley moves between the first building and the second building through the lift and the corridor;

[0007] The raw material receiving area for placing incoming materials and the finished product stacking area for placing finished products are arranged in the first floor production unit, and a sterilization area is arranged below the raw material receiving area;

[0008] The loom cloth rack area, the opening machine area and the cutting bed assembly line are arranged in the four-floor production unit, wherein the AGV car is used to send the incoming materials to the loom cloth rack area, the opening machine area and then to the cutting bed assembly line for opening and cutting, and finally to become the primary processing materials;

[0009] The male pants production line area, the folding machine area, the manual sewing area and the packaging module are arranged in the second floor production unit, wherein the AGV car is used to send the primary processing materials in the four-floor production unit to the male pants production line area to be processed into male pants;

[0010] The female pants production line area is arranged in the third floor production unit, wherein the AGV car is used to send the primary processing materials in the four-floor production unit to the female pants production line area to be processed into female pants, and to the female pants manufacturing workshop of the second building to be processed into female pants;

[0011] The AGV car sends the male pants, the female pants of the third floor production unit and the female pants of the female pants manufacturing workshop to the folding machine and the packaging module for folding and packaging of the male pants and the female pants.

[0012] Further, the first floor production unit is further provided with an anti-static warehouse.

[0013] Further, the packaging module comprises a first packaging module and a second packaging module; the first packaging module comprises a plurality of digital model packaging machines arranged in the second floor production unit, one side of the plurality of digital model packaging machines is provided with a box filling machine, a heat shrinkage machine and an automatic box sealing machine arranged in sequence; the second packaging module comprises a plurality of bag feeding packaging machines arranged in the second floor production unit; one side of the bag feeding packaging machines is provided with a box filling machine, a heat shrinkage machine and an automatic box sealing machine arranged in sequence.

[0014] Further, the cutting bed assembly line is composed of a plurality of cutting beds, the waste collecting channels of the cutting beds in each group are connected in parallel to the cutting bed main suction duct, and the cutting bed main suction ducts are respectively connected to the cutting bed exhaust fans;

[0015] The male pants production line area is composed of a plurality of male pants production lines, the waste collecting channels of the male pants production lines in each group are connected in parallel to the male pants main suction duct, and the male pants main suction ducts are respectively connected to the male pants exhaust fans;

[0016] The women's trousers production line area consists of multiple women's trousers production lines, which are divided into several groups. The waste collection channels of each group of women's trousers production lines are connected in parallel to the main absorption pipes of the women's trousers production lines. The main absorption pipes of the women's trousers production lines are respectively connected to the women's trousers exhaust fans.

[0017] Furthermore, the structure of the women's trousers manufacturing workshop is the same as that of the women's trousers production line area.

[0018] Furthermore, there are two freight elevators, one on the left and one on the right, which are arranged through the first, second, third and fourth production units.

[0019] A method for the circulation of a multi-story underwear production device based on AGV includes the following steps:

[0020] S1. Raw materials in the raw material receiving area of ​​the first-floor production unit in the first building are transferred to the fourth-floor production unit in the first building via AGV carts and freight elevators.

[0021] S2. In the four-story production unit of the first building, the AGV carts deliver the raw materials to the loosening rack area for manual loosening, and then the AGV carts transport them to the opening machine area for opening.

[0022] S3. The AGV carts deliver the loosened raw materials into the cutting line for cutting. The pre-processed materials after cutting are transferred by the AGV carts to the second and third floor production units in the first building via freight elevators, and by the AGV carts to the women's trousers manufacturing workshop in the second building via freight elevators, aisles and lifts.

[0023] S4a1, the AGV trolley transports the initial processed material to the second-floor production unit in the first building and then to the men's trousers production line. The men's trousers production line processes the initial processed material into men's trousers, which are then folded by the folding machine and loaded into the material frame.

[0024] S4a2, Men's trousers are transported by AGV carts to the packaging module for packaging. The packaged men's trousers are then transferred by AGV carts via freight elevator to the finished product stacking area of ​​the production unit on the first floor of the first building.

[0025] S4b1, the AGV cart will transport the initial processed material to the third-floor production unit in the first building to the women's trousers production line. The women's trousers production line will then process the initial processed material into women's trousers, and the AGV cart will then transport it to the second-floor production unit in the first building via the freight elevator.

[0026] S4b2, the AGV cart delivers the women's trousers to the folding machine for folding and loading into the material frame. Then, the AGV cart transports them to the packaging module for packaging. The packaged women's trousers are then transferred by the AGV cart to the finished product stacking area of ​​the production unit on the first floor of the first building via the freight elevator.

[0027] S4c1 and AGV carts will transport the initial processing materials to the women's pants manufacturing workshop in the second building to the women's pants production line. After the women's pants production line processes the initial processing materials into women's pants, the AGV carts will transport them across floors to the second-floor production unit of the first building via elevators, passageways and freight elevators.

[0028] The S4c2 AGV cart delivers the women's trousers to the folding machine for folding and loading into the material frame. The AGV cart then transports the trousers to the packaging module for packaging. The packaged trousers are then transferred by the AGV cart via the freight elevator to the finished product palletizing area of ​​the production unit on the first floor of the first building.

[0029] Furthermore, the packaged finished women's trousers and packaged finished men's trousers in steps S4a2, S4b2 and S4c2 also need to be sterilized and disinfected by entering the sterilization and disinfection area via AGV carts.

[0030] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art:

[0031] This invention relates to a multi-story underwear production device and transfer method based on AGVs. Through the collaboration of AGV carts and freight elevators, it automatically and precisely transfers raw materials, pre-processed materials, and finished products between four floors. Furthermore, it achieves cross-floor material transport via AGV carts, elevators, and aisles, realizing fully automated flow, significantly reducing manual intervention, and improving production efficiency. The multi-story structure allows for process zoning, enabling intensive allocation of production resources, reducing material handling distances, and improving site utilization and production organization efficiency. By separating men's and women's underwear production lines and incorporating multiple packaging modules, it can adapt to the production and packaging needs of different product types, enhancing production line flexibility and order responsiveness.

[0032] Secondly, waste materials from each production line are collected and processed centrally through the main pipeline, which improves waste recycling efficiency, reduces environmental pollution, and meets the requirements of green manufacturing.

[0033] In addition, finished products can be automatically transported to the sterilization and disinfection area by AGV carts for further improvement of hygiene quality and to meet the high standards required for underwear products. Attached Figure Description

[0034] The technical solution of the present invention will be further described below with reference to the accompanying drawings:

[0035] Figure 1 This is a schematic diagram of a multi-story underwear production device based on AGV in one embodiment of the present invention;

[0036] Figure 2 This is a three-dimensional structural diagram of an AGV vehicle in one embodiment of the present invention;

[0037] Figure 3This is a top view of a single-layer production unit in one embodiment of the present invention;

[0038] Figure 4 This is a top view of a two-layer production unit in one embodiment of the present invention;

[0039] Figure 5 for Figure 4 A partial schematic diagram;

[0040] Figure 6 This is a schematic diagram of the packaging module in one embodiment of the present invention;

[0041] Figure 7 This is a top view of a three-layer production unit in one embodiment of the present invention;

[0042] Figure 8 for Figure 7 A partial schematic diagram;

[0043] Figure 9 This is a top view of a four-layer production unit in one embodiment of the present invention;

[0044] Figure 10 for Figure 9 A partial schematic diagram;

[0045] Figure 11 This is a top view of a women's trousers manufacturing workshop according to one embodiment of the present invention;

[0046] The following are included: First-floor production unit 1, second-floor production unit 2, third-floor production unit 3, fourth-floor production unit 4, AGV cart 5, freight elevator 6, lifting elevator 7, aisle 8, first building 100, second building 101, women's trousers manufacturing workshop 9, raw material receiving area 10, finished product palletizing area 11, sterilization and disinfection area 12, anti-static warehouse 13, men's trousers production line area 20, folding machine area 21, manual sewing area 22, packaging module 23, digital model packaging machine 23. 0. Bag packaging machine 231. Cartoning machine 232. Heat shrink machine 234. Automatic carton sealing machine 235. Women's trousers production line area 30. Fabric loosening rack area 40. Opening machine area 41. Cutting bed assembly line 42. Cutting bed 420. Cutting bed main absorption pipe 421. Cutting bed exhaust fan 422. Men's trousers production line 200. Men's trousers main absorption pipe 201. Men's trousers exhaust fan 202. Women's trousers production line 300. Women's trousers main absorption pipe 301. Women's trousers exhaust fan 302. Detailed Implementation

[0047] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0048] This invention provides a multi-story underwear production device and transfer method based on AGV, to solve the problems of poor handling efficiency, low equipment utilization and high cost caused by manual handling in the production of underwear in the prior art.

[0049] For ease of understanding, the specific processes in the embodiments of this application are described below. Please refer to [link / reference]. Figures 1 to 2 This application embodiment discloses a multi-story underwear production device based on AGVs, comprising a first building 100, a second building 101, and AGV carts 5. The first building 100 has four production units distributed across four floors: a first-floor production unit 1, a second-floor production unit 2, a third-floor production unit 3, and a fourth-floor production unit 4, as well as a freight elevator 6 that connects the two floors vertically. The second building 101 has four floors and a lift that moves vertically between the four floors. Each of the four floors contains a women's underwear manufacturing workshop 9. The lift 7 is connected to the fourth-floor production unit 4 via a passageway 8. The AGV cart 5 moves between the first-floor production unit 1, the second-floor production unit 2, the third-floor production unit 3, and the fourth-floor production unit 4 via the freight elevator 6. The AGV cart 5 moves between the first building 100 and the second building 101 via the lift 7 and the passageway 8.

[0050] See Figure 3 The first-level production unit 1 has a raw material receiving area 10 and a finished product stacking area 11 for placing incoming materials, and a sterilization and disinfection area located below the raw material receiving area 10; the AGV trolley 5 can be transported to the second-level production unit 2, the third-level production unit 3 and the fourth-level production unit 4 by means of a freight elevator 6; there are two freight elevators 6, with the left and right freight elevators 6 running through the first-level production unit 1, the second-level production unit 2, the third-level production unit 3 and the fourth-level production unit 4.

[0051] In addition, an anti-static warehouse 13 is also provided in the first-floor production unit 1. The anti-static warehouse 13 is used to store items that will not be shipped immediately.

[0052] See Figure 9 and Figure 10The four-layer production unit 4 includes a fabric loosening rack area 40, an opening machine area 41, and a cutting bed assembly line 42. The AGV trolley 5 is used to sequentially deliver the incoming materials to the fabric loosening rack area 40 and the opening machine area 41 via the freight elevator 6. The function of the fabric loosening rack area and the opening machine area is to spread out and loosen the incoming materials after they are laid out, allowing them to return to their natural state and prepare them for subsequent cutting, sewing, and other processes. Finally, the materials are sent to the cutting bed assembly line 42 for cutting and become preliminary processed materials.

[0053] The cutting line 42 is composed of multiple cutting beds 420, which are divided into several groups. The waste collection channels of each group of cutting beds are connected in parallel to the main absorption pipe 421 of the cutting bed. The main absorption pipes 421 of the cutting beds are respectively connected to the cutting bed exhaust fan 422. In this way, the waste can be collected quickly and effectively by the cutting bed exhaust fan 422, achieving good overall planning.

[0054] See Figures 4 to 6 The second-layer production unit 2 includes a men's trousers production line area 20, a folding machine area 21, a manual sewing area 22, and a packaging module 23. The AGV trolley 5 delivers the initial processed materials from the fourth-layer production unit to the men's trousers production line area for processing into men's trousers. Simultaneously, the AGV trolley 5 delivers men's trousers and women's trousers from the third-layer production unit to the folding machine 21 and packaging module 23 for folding and packaging operations.

[0055] The packaging module 23 includes two modules: a first packaging module and a second packaging module. Specifically, the first packaging module includes multiple digital packaging machines 230 installed in the second-layer production unit 2. On one side of each of the digital packaging machines 230, a cartoning machine 232, a heat shrink machine 234, and an automatic box sealing machine 235 are arranged sequentially. In the first packaging module, the digital packaging machines 230 package the finished product, the cartoning machine 232 boxes the product, the heat shrink machine 234 shrinks the box, and finally, the automatic box sealing machine 235 seals the box.

[0056] The second packaging module includes multiple bag-feeding packaging machines 231 installed in the second-level production unit. On one side of each bag-feeding packaging machine 231 are a cartoning machine 232, a heat-shrink machine 234, and an automatic box-sealing machine 235 arranged sequentially. The difference between the second and first packaging modules is that the second packaging module uses bag-feeding packaging machines 231 for packaging. Both packaging methods are suitable for different product types, thus offering broad adaptability.

[0057] Furthermore, the men's trousers production line area 20 consists of multiple men's trousers production lines 200, which are divided into several groups. The waste collection channels of each group's men's trousers production line are connected in parallel to the main absorption pipe 201. These main absorption pipes are each connected to a men's trousers exhaust fan 202. This allows for the rapid and effective collection of waste from the main absorption pipe 201, resulting in a high waste treatment rate.

[0058] See Figure 7 and Figure 8 The three-layer production unit 3 includes a women's trousers production line area 30. The AGV trolley 5 is used to deliver the preliminary processing materials from the four-layer production unit to the women's trousers production line area 30 to process the preliminary processing materials into women's trousers.

[0059] The women's trousers production line area 30 comprises multiple women's trousers production lines 300, which are divided into several groups. The waste collection channels of each group's production lines are connected in parallel to the main absorption pipes 301. These main absorption pipes are each connected to a women's trousers exhaust fan 302. Similarly, the women's trousers exhaust fans 302 effectively collect waste generated during the production and processing of women's trousers, achieving a high waste treatment rate.

[0060] See Figure 11 In the women's trousers manufacturing workshop 9 of the second building 101, there are multiple women's trousers production lines 300 that are the same as those in the three-story production unit 3. The processing methods and structures of the two are the same, except that they are located on different floors.

[0061] This invention also discloses a flow method for a multi-story underwear production device based on AGV, comprising the following steps:

[0062] S1. Raw materials are transferred from the raw material receiving area of ​​the first-floor production unit to the fourth-floor production unit via AGV carts and freight elevators. In step S1, the receiving and cross-floor transfer of raw materials are realized through AGV carts, which is convenient and effective.

[0063] S2. In the four-layer production unit, the AGV carts deliver the raw materials to the loosening rack area for manual loosening, and then the AGV carts transport them to the opening machine area. The opening machine in the opening machine area completes the unfolding and opening of the raw materials, preparing for subsequent cutting. The raw materials are pre-treated in advance to ensure the processing quality of the raw materials in the subsequent process.

[0064] S3. The AGV cart delivers the loosened raw materials into the cutting line for cutting. The pre-processed materials are then transferred by the AGV cart to the second and third floor production units in the first building 100 via freight elevators for further processing. Simultaneously, the AGV cart can also be transferred via freight elevators, aisles, and lifts to the women's trousers manufacturing workshop 9 in the second building for further processing. This step realizes the cutting and transfer of incoming materials. The pre-processed materials can be transported to the second floor production unit 2 or the third floor production unit 3 for the production of men's or women's trousers. At the same time, the pre-processed materials can also be sent to the women's trousers manufacturing workshop 9 in the second building 101 for the production of women's trousers. In this way, when the number of incoming materials to be processed is large, multi-channel production can be carried out, which is highly adaptable and improves the overall processing efficiency.

[0065] As can be seen from the above, the primary processed materials transferred from the four-layer production unit can enter three different production processes.

[0066] The processing steps of the first production process are as follows:

[0067] S4a1 and AGV trolleys transport the pre-processed materials to the second-floor production unit and then to the men's trousers production line. The men's trousers production line processes the pre-processed materials, and after they are made into men's trousers, they are folded by a folding machine and loaded into a material frame.

[0068] S4a2, The AGV cart transports the finished men's trousers to the packaging module for packaging. The packaged finished men's trousers are then transferred by the AGV cart to the finished product stacking area of ​​the first-floor production unit via a freight elevator.

[0069] Specifically, steps S4a1 and S4a2 are mainly for processing and packaging men's trousers, and then transporting the trousers to the finished product stacking area for material stacking. They are for the fabric transported to the second-level production unit.

[0070] The processing steps of the second production process are as follows:

[0071] S4b1, the AGV trolley transports the initial processing material to the third-floor production unit and then to the women's trousers production line. The women's trousers production line processes the initial processing material and produces women's trousers. After that, the AGV trolley transports the material to the second-floor production unit via a freight elevator.

[0072] S4b2, the AGV cart delivers the women's trousers to the folding machine for folding and loading into the material frame. Then, the AGV cart transports them to the packaging module for packaging. The packaged women's trousers are then transferred by the AGV cart to the finished product stacking area of ​​the first-floor production unit via the freight elevator.

[0073] Steps S4b1 and S4b2 are mainly for processing and packaging women's trousers, and finally transporting the trousers to the finished product stacking area for material stacking. They are for the fabrics transported to the third-level production unit.

[0074] The processing steps of the third production process are as follows:

[0075] S4c1 and AGV carts will transport the initial processing materials to the women's pants manufacturing workshop in the second building to the women's pants production line. After the women's pants production line processes the initial processing materials into women's pants, the AGV carts will transport them across floors to the second-floor production unit of the first building via elevators, passageways and freight elevators.

[0076] The S4c2 AGV cart delivers the women's trousers to the folding machine for folding and loading into the material frame. The AGV cart then transports the trousers to the packaging module for packaging. The packaged trousers are then transferred by the AGV cart via the freight elevator to the finished product palletizing area of ​​the production unit on the first floor of the first building.

[0077] The third production process utilizes AGV carts for cross-floor transportation, further improving processing efficiency.

[0078] In addition, the packaged women's trousers and packaged men's trousers in steps S4a2, S4b2 and S4c2 need to be sterilized and disinfected in the sterilization and disinfection area via AGV carts to further ensure the hygiene and quality of the products.

[0079] In summary, this transfer method achieves fully automated material transfer across floors through AGVs, freight elevators, lifts, and aisles, significantly reducing waiting time between processes and manual handling, greatly improving equipment utilization and overall production efficiency. It utilizes multi-story buildings to implement vertical zoning of processes, rationally configures the functions of each unit, shortens material movement paths, saves floor space, and improves site utilization and production process continuity.

[0080] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A multi-story underwear production device based on AGV, characterized in that: The system includes a first building, a second building, and AGV (Automated Guided Vehicle) carts. The first building contains four production units (first, second, third, and fourth floors) distributed across four floors, connected by a freight elevator. The second building has four floors and elevators that move vertically between them. A women's trousers manufacturing workshop is located on the fourth floor. The elevators connect to the fourth-floor production units via a passageway. The AGV carts move between the first, second, third, and fourth production units via the freight elevators. The AGV carts also move between the first and second buildings via the elevators and passageways. The first-level production unit has a raw material receiving area for placing incoming materials, a finished product stacking area for placing finished products, and a sterilization and disinfection area located below the raw material receiving area. The four-layer production unit includes a fabric loosening rack area, an opening machine area, and a cutting bed assembly line. The AGV trolley is used to deliver incoming materials sequentially to the fabric loosening rack area and the opening machine area via a freight elevator for opening. Finally, the materials are delivered to the cutting bed assembly line for cutting and become preliminary processed materials. The second-level production unit includes a men's trousers production line area, a folding machine area, a manual sewing area, and a packaging module. The AGV cart sequentially delivers the initial processing materials from the four-level production unit to the men's trousers production line area for processing into men's trousers. The three-layer production unit contains a women's trousers production line area. The AGV cart is used to transport the initial processing materials from the fourth-layer production unit to the women's trousers production line area for processing into women's trousers, and to transport the initial processing materials from the fourth-layer production unit to the women's trousers manufacturing workshop in the second building for processing into women's trousers. The AGV cart delivers men's trousers, women's trousers from the three-layer production unit, and women's trousers from the women's trousers manufacturing workshop to the folding machine and packaging module for folding and packaging of the men's and women's trousers.

2. The multi-story underwear production device based on AGV as described in claim 1, characterized in that: An anti-static warehouse is also set up within the first-floor production unit.

3. The multi-story underwear production device based on AGV as described in claim 1, characterized in that: The packaging module includes a first packaging module and a second packaging module; the first packaging module includes multiple digital packaging machines arranged in the second-level production unit, and a cartoning machine, a heat shrink machine and an automatic carton sealing machine are arranged sequentially on one side of the multiple digital packaging machines; the second packaging module includes multiple bag-feeding packaging machines arranged in the second-level production unit; a cartoning machine, a heat shrink machine and an automatic carton sealing machine are arranged sequentially on one side of the bag-feeding packaging machine.

4. The multi-story underwear production device based on AGV as described in claim 1, characterized in that: The cutting line consists of multiple cutting beds, which are divided into several groups. The waste collection channels of each group of cutting beds are connected in parallel to the main absorption pipe of the cutting bed. The main absorption pipes of the multiple cutting beds are respectively connected to the cutting bed exhaust fan. The men's trousers production line area consists of multiple men's trousers production lines, which are divided into several groups. The waste collection channels of the men's trousers production lines in each group are connected in parallel to the main absorption pipes of the men's trousers production lines. The main absorption pipes of the men's trousers production lines are respectively connected to the men's trousers exhaust fans. The women's trousers production line area consists of multiple women's trousers production lines, which are divided into several groups. The waste collection channels of each group of women's trousers production lines are connected in parallel to the main absorption pipes of the women's trousers production lines. The main absorption pipes of the women's trousers production lines are respectively connected to the women's trousers exhaust fans.

5. The multi-story underwear production device based on AGV as described in claim 1, characterized in that: The structure of the women's trousers manufacturing workshop is the same as that of the women's trousers production line area.

6. The multi-story underwear production device based on AGV as described in claim 1, characterized in that: There are two freight elevators, one on the left and one on the right, which are arranged between the first-floor production unit, the second-floor production unit, the third-floor production unit, and the fourth-floor production unit.

7. A method for the circulation of a multi-story underwear production device based on AGV, characterized in that, Includes the following steps: S1. Raw materials in the raw material receiving area of ​​the first-floor production unit in the first building are transferred to the fourth-floor production unit in the first building via AGV carts and freight elevators. S2. In the four-story production unit of the first building, the AGV carts deliver the raw materials to the loosening rack area for manual loosening, and then the AGV carts transport them to the opening machine area for opening. S3. The AGV carts deliver the loosened raw materials into the cutting line for cutting. The pre-processed materials after cutting are transferred by the AGV carts to the second and third floor production units in the first building via freight elevators, and by the AGV carts to the women's trousers manufacturing workshop in the second building via freight elevators, aisles and lifts. S4a1, the AGV trolley transports the initial processed material to the second-floor production unit in the first building and then to the men's trousers production line. The men's trousers production line processes the initial processed material into men's trousers, which are then folded by the folding machine and loaded into the material frame. S4a2, Men's trousers are transported by AGV carts to the packaging module for packaging. The packaged men's trousers are then transferred by AGV carts via freight elevator to the finished product stacking area of ​​the production unit on the first floor of the first building. S4b1, the AGV cart will transport the initial processed material to the third-floor production unit in the first building to the women's trousers production line. The women's trousers production line will then process the initial processed material into women's trousers, and the AGV cart will then transport it to the second-floor production unit in the first building via the freight elevator. S4b2, the AGV cart delivers the women's trousers to the folding machine for folding and loading into the material frame. Then, the AGV cart transports them to the packaging module for packaging. The packaged women's trousers are then transferred by the AGV cart to the finished product stacking area of ​​the production unit on the first floor of the first building via the freight elevator. S4c1 and AGV carts will transport the initial processing materials to the women's pants manufacturing workshop in the second building to the women's pants production line. After the women's pants production line processes the initial processing materials into women's pants, the AGV carts will transport them across floors to the second-floor production unit of the first building via elevators, passageways and freight elevators. The S4c2 AGV cart delivers the women's trousers to the folding machine for folding and loading into the material frame. The AGV cart then transports the trousers to the packaging module for packaging. The packaged trousers are then transferred by the AGV cart via the freight elevator to the finished product palletizing area of ​​the production unit on the first floor of the first building.

8. The circulation method of the multi-story underwear production device based on AGV as described in claim 7, characterized in that: In steps S4a2, S4b2, and S4c2, the packaged finished women's trousers and packaged finished men's trousers also need to be transported by AGV carts to the sterilization and disinfection area for sterilization and disinfection.

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