Panty processing system and method

By combining airbags and steam hoods with heat-conducting plates and drying mechanisms, the underwear achieves uniform shaping and sterilization in three-dimensional space, solving the problems of poor fit and uneven effect of traditional equipment, and improving the shaping quality and wearing comfort of the underwear.

CN122235928APending Publication Date: 2026-06-19YIWU KEFEI CLOTHING CO LTD
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Patent Information

Application Number
CN202610273919.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-03-07
Publication Date
2026-06-19

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Abstract

This invention discloses an underwear processing system and method, relating to the field of underwear processing technology, aiming to solve the problem that traditional fixed molds cannot perfectly fit underwear. The key technical points are: it includes a machine tool, characterized by further including a support mechanism, comprising several support plates and airbags equally spaced on the machine tool. The airbags have elastic deformation properties, and the outer surface of the inflated airbags is constructed to simulate a three-dimensional curved surface from the waist to the buttocks of the human body, used to support and fit the underwear to be processed from the inside. The support plates are installed inside the airbags. This invention's processing system, by forming a three-dimensional curved surface simulating the waist to the buttocks of the human body after the airbags are inflated, can open and tightly fit underwear of different sizes and styles from the inside without wrinkles, ensuring that high-temperature saturated steam can penetrate evenly and deeply into the entire structure of the fabric from the inside out.
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Description

Technical Field

[0001] This invention relates to the field of underwear processing technology, and more specifically, to an underwear processing system and processing method. Background Technology

[0002] Underwear, especially intimate apparel, is increasingly being manufactured with a focus on comfort, health, and a flattering fit, in addition to its basic functions of covering and protecting the body. The shaping and smoothing of underwear is a crucial process affecting its final quality, directly impacting the product's cut, fit, appearance, and ability to maintain its shape over long-term wear.

[0003] Currently, the industry relies heavily on traditional ironing or simple steam treatment for shaping underwear. Ironing is usually done manually with a handheld iron, which is inefficient, labor-intensive, and the shaping quality is greatly affected by the operator's experience. It is also difficult to achieve uniform and three-dimensional shaping of complex three-dimensional surfaces such as the waist, abdomen, and buttocks, which can easily lead to localized overheating that damages the fabric or uneven shaping. While some semi-automatic steam treatment equipment improves efficiency to some extent, its steam application method is often rather crude. It typically uses a fixed mold to support the underwear, humidifies and softens it by external steam injection, and then irons or dries it.

[0004] This method has significant shortcomings: First, the fixed mold frame is difficult to flexibly adapt to the changes in the curvature of the human body of different sizes and styles, resulting in poor support and possible wrinkles or deformation of the underwear after shaping; second, the steam action is mostly from the outside to the inside, and the heat and humidity penetration is uneven, which has limited effect on the sterilization and smoothing of the inside of the underwear; third, it lacks the ability to focus on and differentiate the treatment of key stress areas such as the waistband and side seams, affecting the fit and durability when wearing.

[0005] Therefore, a new solution is needed to address this problem. Summary of the Invention

[0006] To address the shortcomings of existing technologies, the present invention aims to provide an underwear processing system and method that ensures that high-temperature saturated steam can penetrate evenly and deeply into the entire structure of the underwear from the inside out, and can uniformly sterilize and smooth the inner side of the underwear.

[0007] The above-mentioned technical objective of the present invention is achieved through the following technical solution: an underwear processing system, including a machine tool, and further comprising: The support mechanism includes several support plates and airbags installed at equal intervals on the machine tool. The airbags have elastic deformation properties. The outer surface of the airbag after inflation is constructed to simulate a three-dimensional curved surface from the waist and abdomen to the buttocks of the human body, which is used to support and fit the underwear to be processed from the inside. The support plates are installed inside the airbags. A steam-setting mechanism includes a steam generator and a steam hood. The steam generator is installed inside the machine tool. The steam hood is fitted over the outside of the air bag and has the same shape as the air bag. The steam hood and the steam generator are connected through a delivery pipe. There is a cavity between the steam hood and the air bag. A support block that abuts against the air bag is fixedly connected to the side of the steam hood near the air bag. A baffle is detachably connected to the outside of each steam-setting mechanism on the machine tool. A limiting plate that bends toward the underwear side is provided on the top of the baffle, which will reflect the steam emitted from the steam hood onto the surface of the underwear. The drying mechanism, installed downstream of the steam setting mechanism, is used to dry the underwear after steam setting. The steam generator integrates a heating boiler, a water softening module, and a pressure regulating valve. The saturated steam it generates is injected into the cavity through a delivery pipe. The steam hood has several air outlets. A heat-conducting plate is slidably connected to the outer surface of the steam hood and the side near the waist and abdomen of the air bag. The heat-conducting plate is arc-shaped to adapt to the arc-shaped surface of the waist and abdomen of the underwear. A steam pipe is connected inside the heat-conducting plate. The steam temperature in the steam pipe is higher than the temperature in other parts of the steam hood, which focuses on shaping the waist and abdomen of the underwear. The heat-conducting plate has through holes for steam to pass through.

[0008] The invention is further configured such that: a distributed temperature sensor and a pressure sensor are installed in the cavity to monitor the steam status of each area in real time; a control system is connected to the steam generator; the control system dynamically adjusts the temperature, pressure and injection duration of the steam according to the fabric type and the setting process curve; and a control panel for adjusting the mode is installed on the steam generator.

[0009] The present invention is further configured such that: the top and bottom edges of the steam hood are provided with an inflatable and deflated sealing ring; when the underwear is put on to the designated position, the sealing ring inflates and expands, tightly sealing the top opening and the bottom opening of the underwear on the steam hood, preventing steam leakage and ensuring stable internal pressure of the airbag.

[0010] The invention is further configured such that: the heat-conducting plate is connected to the steam pipe through a corrugated pipe, the corrugated pipe allows the heat-conducting plate to slide along the surface of the steam hood while maintaining the steam passage, and the inner arc surface of the heat-conducting plate is also embedded with multiple independently controllable nozzles.

[0011] The invention is further configured such that: the control system has pre-stored shaping parameter combinations corresponding to different underwear fabrics and styles; the control panel is a touch screen, whose interface provides a one-click call function for parameter combinations and can display a three-dimensional temperature field and pressure field simulation diagram inside the cavity in real time.

[0012] The invention is further configured such that: the drying mechanism includes a drying tunnel and multiple sets of infrared heating plates and circulating fan units disposed therein; the inner wall contour of the drying tunnel matches the outer size of the steam hood to form a narrow drying air duct; the airflow direction of the circulating fan unit can be switched to achieve gradient drying of underwear from the outside to the inside.

[0013] The invention is further configured such that: a conveyor belt is provided on the machine tool along the processing direction; the support mechanism and the steam shaping mechanism are integrated on a moving module; the moving module can move stepwise along the conveyor belt to realize the automatic transfer of underwear between workstations.

[0014] A method for processing underwear, applicable to an underwear processing system, includes the following steps: S1. Place the underwear to be heat-set on the outside of the steam hood. Inflate the airbag with an air pump. The three-dimensional curved surface of the airbag supports the underwear and the steam hood, so that the inside of the underwear fits the surface of the steam hood. Slide the baffle to a position higher than the underwear. S2, inflate the sealing ring to tightly seal the top and bottom openings of the underwear onto the steam cover, preventing steam leakage and ensuring stable internal pressure of the airbag 3; S3: Select the shaping process curve corresponding to the underwear fabric and style through the control panel, start the steam generator, and inject steam into the cavity between the steam hood and the air bag through the delivery pipe. The steam acts on the inside of the underwear through the air outlet on the steam hood. At the same time, the steam temperature and pressure in the cavity are dynamically adjusted according to the feedback from the distributed temperature sensor and pressure sensor. S4 introduces high-temperature steam from the steam pipe into the heat-conducting plate, making its surface temperature higher than the surrounding steam environment, and then sprays it out through the through holes on it, performing a combination of contact pressurization and high-temperature steam shaping on the waist and abdomen area. S5. The shaped underwear moves along the conveyor belt to the downstream drying mechanism. The circulating fan unit of the drying tunnel is started to perform gradient drying of the underwear with switchable air direction. S6. After drying, the airbag deflates and contracts, the baffle slides open, and the finished underwear is removed.

[0015] In summary, the present invention has the following beneficial effects: This processing system uses inflatable airbags to create a three-dimensional curved surface that mimics the waist, abdomen, and buttocks of the human body. This allows the system to stretch and tightly fit underwear of different sizes and styles without wrinkles from the inside. This highly fitted support, combined with the cavity formed between the steam cover and the airbag, as well as the dense air vents on the steam cover, ensures that high-temperature saturated steam can penetrate evenly and deeply into the entire fabric structure from the inside out. In addition, the removable outer baffle and the top bent limiting plate help to rebound and wrap the diffused steam, achieving a balanced temperature and humidity field in the underwear in three-dimensional space. This fundamentally solves the problems of poor fit and uneven effect in traditional shaping methods, laying a solid foundation for obtaining a three-dimensional and flat shaping effect. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ; Figure 2 Cross-sectional view of the present invention Figure 1 ; Figure 3 This is a schematic diagram of the structure of the present invention. Figure 2 ; Figure 4 This is a schematic diagram of the structure of the present invention. Figure 3 ; Figure 5 This is a schematic diagram of the heat-conducting plate in this invention; Figure 6 This is a cross-sectional view of the heat-conducting plate in this invention.

[0017] In the diagram: 1. Machine tool; 2. Support plate; 3. Airbag; 4. Steam generator; 5. Steam hood; 6. Conveying pipe; 7. Cavity; 8. Support block; 9. Baffle; 10. Limiting plate; 11. Heat-conducting plate; 12. Steam pipe; 13. Through hole; 14. Control panel; 15. Sealing ring; 16. Drying tunnel; 17. Infrared heating plate; 18. Circulating fan unit; 19. Conveyor belt. Detailed Implementation

[0018] To enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other.

[0019] In the description of this invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0020] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0021] An underwear processing system and method, such as Figures 1-6 As shown, the system includes a machine tool 1, a support mechanism, a steam shaping mechanism, and a drying mechanism. The support mechanism includes several support plates 2 and airbags 3 evenly spaced on the machine tool 1. The airbags 3 have elastic deformation properties; their inflated outer surface is constructed to simulate a three-dimensional curved surface from the waist to the buttocks of a human body, supporting and conforming to the underwear to be processed. The support plates 2 are installed inside the airbags 3, acting as a skeleton to support the airbags 3 from the inside and maintain the basic shape of the support mechanism, ensuring the underwear hangs stably on the support mechanism before inflation. The airbags 3 are made of a highly elastic and high-temperature resistant flexible material and are fitted over the support plates 2. When the processing system is started, an air pump injects air into the airbags 3. During elastic deformation, its outer surface gradually expands and unfolds into a pre-formed three-dimensional curved surface. This curved surface simulates the continuous physiological curvature of the human body from the waist and abdomen to the buttocks and the root of the thigh. As the airbag 3 is fully inflated, this contoured curved surface can completely stretch the underwear from the inside, allowing the underwear fabric to unfold. This close-fitting support ensures that the underwear maintains its ideal three-dimensional shape during subsequent processing, creating the preconditions for uniform steam penetration and efficient heat conduction. At the same time, the elasticity of the airbag 3 has good adaptability, and by adjusting the inflation amount, it can flexibly match the curvature requirements of underwear of different sizes and styles, improving the versatility of the entire processing system.

[0022] like Figures 1-4As shown, the steam setting mechanism includes a steam generator 4 and a steam hood 5. The steam generator 4 is installed inside the machine tool 1. As an integrated thermal unit, the steam generator 4 is built into the machine tool 1 and typically integrates a heating boiler, a water softening module, and a precise pressure regulating valve, capable of continuously generating pure and stable saturated steam. The steam hood 5 is fitted outside the air bag 3 and has the same shape as the air bag 3. The steam hood 5 is connected to the steam generator 4 through a conveying pipe 6. There is a cavity 7 between the steam hood 5 and the air bag 3. A support block 8 that abuts against the air bag 3 is fixedly connected to the side of the steam hood 5 closest to the air bag 3. A baffle 9 is detachably connected to the outside of each steam setting mechanism on the machine tool 1. The top of the baffle 9 is provided with an inner lining. The limiting plate 10, which is bent on one side, will bounce the steam emitted from the steam cover 5 back to the surface of the underwear. The steam cover 5 is also made of elastic material. The presence of the support block 8 makes the size of the cavity 7 between the steam cover 5 and the air bag 3 stable, ensuring that the steam can be delivered stably. This allows the steam to be evenly distributed and flowed in this cavity 7. A large number of tiny air vents are opened on the wall of the steam cover 5. When the high temperature and high pressure saturated steam fills the cavity 7, it will diffuse through these air vents and directly and evenly penetrate into every fine structure of the underwear fabric from the inside out. This ensures that the heat and moisture can act on the fabric fibers deeply and efficiently, achieving thorough softening, smoothing and sterilization, laying the foundation for three-dimensional shaping.

[0023] To further improve steam utilization efficiency and optimize the shaping environment, baffles 9 are installed on the outer side of each steam hood 5 on the machine tool table 1. These baffles 9 are pushed to both sides of the steam hood 5 during operation, and their tops are bent towards the underwear side to form limiting plates 10, thereby creating a semi-enclosed working space around the steam hood 5. When steam is ejected from the vent of the steam hood 5 and acts on the underwear, some of the steam will naturally diffuse outward, and the bent limiting plates 10 can effectively bounce this diffused steam back to the outer surface of the underwear. This is equivalent to creating a continuously circulating humid and warm atmosphere on the outside of the underwear. This not only prevents the ineffective dissipation of steam and saves energy, but more importantly, it allows the inner side to be directly penetrated into the underwear through cavity 7, while the outer side is wrapped by rebounding steam. This ensures that the underwear fabric is in a balanced temperature and humidity field in three-dimensional space, which greatly promotes the uniform relaxation and shape reshaping of the fabric fibers. It avoids uneven shaping or differences between the inner and outer layers caused by one-sided action. The temperature, pressure and time of the entire steam shaping process are precisely controlled in a closed loop by the control system according to the preset fabric characteristic process curve, ensuring a high degree of consistency and repeatability of the shaping effect.

[0024] like Figures 1-6As shown, the saturated steam generated is injected into the cavity 7 from the delivery pipe 6. The steam hood 5 has several vent holes. A heat-conducting plate 11 is slidably connected to the outer surface of the steam hood 5, near the waist and abdomen of the airbag 3. The heat-conducting plate 11 is arc-shaped to adapt to the arc-shaped surface of the underwear's waist and abdomen. The heat-conducting plate 11 has two pieces, front and back, connected by an elastic band, which can deform as the steam hood 5 is inflated, thus adapting to underwear of different sizes. A steam pipe 12 is connected inside the heat-conducting plate 11. The steam temperature inside the steam pipe 12 is higher than the temperature at other locations inside the steam hood 5, focusing on shaping the waist and abdomen of the underwear. The heat-conducting plate 11 is connected to the steam pipe 12 through a corrugated pipe, which allows the heat-conducting plate 11 to slide along the surface of the steam hood 5 while maintaining steam passage. Multiple independently controllable nozzles are also embedded in the inner arc surface of the heat-conducting plate 11. Through holes 13 for steam to pass through are provided on the heat-conducting plate 11. The shape of the heat-conducting plate 11 can adapt to the underwear's abdomen contracting from both sides towards the center, from top to bottom. The downward transition arc surface ensures that after sliding adjustment, it can achieve a large-area, close fit with the waistband and abdominal area of ​​the underwear covered by the steam cover 5. When the high-temperature steam circulates inside the heat-conducting plate 11, it quickly heats the heat-conducting plate 11 itself to a higher constant temperature, making it a stable high-temperature heat source. At the same time, the high-temperature steam is directly sprayed onto the underwear waistband and abdominal fabric in close contact with it through the micro-holes 13 evenly distributed on the heat-conducting plate 11. Thus, on the one hand, the high-temperature heat-conducting plate 11 performs uniform and efficient ironing on the fabric through direct contact, effectively shaping and strengthening the elastic fibers and structure of the waist. On the other hand, the higher-temperature steam sprayed from the holes 13 creates a local high-humidity and heat environment near the contact surface, achieving a deeper and more thorough softening and shaping of the waistband and abdominal fabric. This improves the shaping durability, resilience, and wearing comfort of the underwear waistband, solving the industry problem of insufficient heat and pressure in this key area when using ordinary steam shaping.

[0025] like Figures 1-3As shown, the drying mechanism is installed downstream of the steam setting mechanism and is used to dry the underwear after steam setting. The drying mechanism includes a drying tunnel 16 and multiple sets of infrared heating plates 17 and a circulating fan unit 18 installed therein. The inner wall contour of the drying tunnel 16 matches the outer size of the steam hood 5 to form a narrow drying air duct. The airflow direction of the circulating fan unit 18 can be switched to achieve gradient drying of the underwear from the outside to the inside. This air duct can ensure that the hot air flow field can tightly wrap the entire three-dimensional surface of the product, avoiding local overheating or drying dead corners. By setting the infrared heating plates 17, it can radiate heat rays with strong penetrating power, so that the fabric fibers can be heated quickly from the inside and evaporate moisture. The circulating fan unit 18 is responsible for driving high-temperature air to flow at high speed and in a directional manner in the closed air duct, so as to remove the water vapor evaporated from the surface of the fabric in time. To achieve unmanned operation from shaping to drying, a conveyor belt 19 is installed on the machine tool 1 along the processing direction. The support mechanism and the steam shaping mechanism are integrated into a moving module. The moving module is a mounting box that can move with the conveyor belt 19. Both the support mechanism and the steam shaping mechanism are mounted on the mounting box. The moving module can move step by step along the conveyor belt 19 to realize the automatic transfer of underwear between workstations. When the underwear has completed steam shaping at a workstation, the moving module automatically carries the underwear and its supporting shaping mold and moves it smoothly to the entrance of the downstream drying tunnel 16. Then the tunnel door opens, and the moving module sends the product into the drying tunnel 16 for drying. This reduces manual intervention and ensures the consistency of production rhythm and the continuity of the process.

[0026] Distributed temperature and pressure sensors are installed inside cavity 7 to monitor the steam status of each area in real time. A control system is connected to the steam generator 4. The control system dynamically adjusts the temperature, pressure and injection duration of the steam according to the fabric type and the shaping process curve. A control panel 14 for adjusting the mode is installed on the steam generator 4. The control system has pre-stored shaping parameter combinations corresponding to different underwear fabrics and styles. The control panel 14 is a touch screen. Its interface provides a one-click recall function for parameter combinations and can display a three-dimensional temperature and pressure field simulation diagram inside cavity 7 in real time.

[0027] Distributed temperature and pressure sensors can monitor the steam state in different areas of cavity 7 in real time and at multiple points, obtaining comprehensive thermal and pressure field data. During actual processing, the operator only needs to select the corresponding fabric and style parameter combination through the touch screen control panel 14 integrated on the steam generator 4, and the processing system will then dynamically and in a closed loop adjust the temperature, pressure and injection time of the steam injected into cavity 7 by adjusting the boiler power, the opening of the pressure regulating valve and the on / off state of the solenoid valve, based on the preset curve and combined with the real-time data fed back by the sensors. The interface of control panel 14 can not only set and call parameters, but also convert sensor data into intuitive three-dimensional temperature and pressure field simulation diagrams and display them in real time, so that the operator can have a clear understanding of the process status in the entire three-dimensional cavity.

[0028] The top and bottom edges of the steam hood 5 are equipped with inflatable and deflated sealing rings 15. The inflation port of the sealing ring 15 is connected to an air pump. When deflation is required, simply disconnect the connection to allow natural air release. When the underwear is pulled into the designated position, the sealing ring 15 inflates, tightly sealing the top and bottom openings of the underwear against the steam hood 5. This prevents steam leakage and ensures stable internal pressure in the airbag 3. The inflated sealing ring 15 acts like a soft inflatable pad, tightly pressing against the opening edges of the underwear fabric from the inside, firmly and flexibly sealing them at the corresponding positions on the steam hood 5. This solves the problem of sealing openings caused by differences in underwear size or fabric elasticity, effectively preventing high-temperature, high-pressure steam from leaking from both ends. Compared to traditional rigid caps or simple binding sealing methods, this inflatable sealing method is more adaptable, does not damage the fabric, and can adaptively adjust the compression force according to slight deformation of the underwear.

[0029] A method for processing underwear, applicable to an underwear processing system, includes the following steps: S1, the underwear to be high temperature set is placed on the outside of the steam cover 5, and the air bag 3 is inflated by the air pump. The three-dimensional curved surface of the air bag 3 supports the underwear and the steam cover 5, so that the inside of the underwear is in contact with the surface of the steam cover 5. The sliding baffle 9 is moved to a position higher than the underwear. S2, inflate the sealing ring 15 to tightly seal the top opening and hem opening of the underwear onto the steam cover 5, prevent steam leakage and ensure stable internal pressure of the airbag 3; S3, select the shaping process curve corresponding to the underwear fabric and style through the control panel 14, start the steam generator 4, and inject steam into the cavity 7 between the steam hood 5 and the air bag 3 through the conveying pipe 6. The steam acts on the inside of the underwear through the air outlet on the steam hood 5. At the same time, the steam temperature and pressure in the cavity 7 are dynamically adjusted according to the feedback from the distributed temperature sensor and pressure sensor. S4, the high-temperature steam in the steam pipe 12 is introduced into the heat-conducting plate 11, so that its surface temperature is higher than the surrounding steam environment, and it is ejected through the through hole 13 on it to perform contact pressurization and high-temperature steam composite shaping on the waist and abdomen area. S5. The shaped underwear moves along the conveyor belt 19 to the downstream drying mechanism. The circulating fan unit 18 of the drying tunnel 16 is started to perform gradient drying on the underwear with switchable air direction. S6. After drying, the airbag 3 deflates and contracts, the baffle 9 slides open, and the processed underwear is taken out.

[0030] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. An underwear processing system, comprising a machine tool, characterized in that, Also includes: The support mechanism includes several support plates and airbags installed at equal intervals on the machine tool. The airbags have elastic deformation properties. The outer surface of the airbag after inflation is constructed to simulate a three-dimensional curved surface from the waist and abdomen to the buttocks of the human body, which is used to support and fit the underwear to be processed from the inside. The support plates are installed inside the airbags. A steam-setting mechanism includes a steam generator and a steam hood. The steam generator is installed inside the machine tool. The steam hood is fitted over the outside of the air bag and has the same shape as the air bag. The steam hood and the steam generator are connected through a delivery pipe. There is a cavity between the steam hood and the air bag. A support block that abuts against the air bag is fixedly connected to the side of the steam hood near the air bag. A baffle is detachably connected to the outside of each steam-setting mechanism on the machine tool. A limiting plate that bends toward the underwear side is provided on the top of the baffle, which will reflect the steam emitted from the steam hood onto the surface of the underwear. The drying mechanism, installed downstream of the steam setting mechanism, is used to dry the underwear after steam setting. The steam generator integrates a heating boiler, a water softening module, and a pressure regulating valve. The saturated steam it generates is injected into the cavity through a delivery pipe. The steam hood has several air outlets. A heat-conducting plate is slidably connected to the outer surface of the steam hood and the side near the waist and abdomen of the air bag. The heat-conducting plate is arc-shaped to adapt to the arc-shaped surface of the waist and abdomen of the underwear. A steam pipe is connected inside the heat-conducting plate. The steam temperature in the steam pipe is higher than the temperature in other parts of the steam hood, which focuses on shaping the waist and abdomen of the underwear. The heat-conducting plate has through holes for steam to pass through.

2. The underwear processing system according to claim 1, characterized in that: The cavity is equipped with distributed temperature and pressure sensors to monitor the steam status of each area in real time. The steam generator is connected to a control system, which dynamically adjusts the steam temperature, pressure and injection duration according to the fabric type and setting process curve. The steam generator is equipped with a control panel for adjusting the mode.

3. The underwear processing system according to claim 1, characterized in that: The top and bottom edges of the steam hood are equipped with an inflatable and deflated sealing ring. When the underwear is put on to the designated position, the sealing ring inflates and expands, tightly sealing the top opening and bottom opening of the underwear onto the steam hood, preventing steam leakage and ensuring stable internal pressure of the airbag.

4. The underwear processing system according to claim 1, characterized in that: The heat-conducting plate is connected to the steam pipe through a corrugated pipe. The corrugated pipe allows the heat-conducting plate to slide along the surface of the steam hood while maintaining the steam passage. The inner arc surface of the heat-conducting plate is also embedded with multiple independently controllable nozzles.

5. The underwear processing system according to claim 2, characterized in that: The control system has pre-stored shaping parameter combinations corresponding to different underwear fabrics and styles. The control panel is a touch screen, and its interface provides a one-click recall function for parameter combinations and can display a three-dimensional temperature field and pressure field simulation diagram inside the cavity in real time.

6. The underwear processing system according to claim 2, characterized in that: The drying mechanism includes a drying tunnel and multiple sets of infrared heating plates and circulating fan units installed therein. The inner wall contour of the drying tunnel matches the outer size of the steam hood, forming a narrow drying air duct. The airflow direction of the circulating fan unit can be switched, enabling gradient drying of underwear from the outside to the inside.

7. The underwear processing system according to claim 6, characterized in that: The machine tool is equipped with a conveyor belt along the processing direction. The support mechanism and the steam shaping mechanism are integrated into a moving module. The moving module can move step by step along the conveyor belt to realize the automatic transfer of underwear between workstations.

8. A method for processing underwear, applicable to an underwear processing system as described in any one of claims 1-7, characterized in that, Includes the following steps: S1. Place the underwear to be heat-set on the outside of the steam hood. Inflate the airbag with an air pump. The three-dimensional curved surface of the airbag supports the underwear and the steam hood, so that the inside of the underwear fits the surface of the steam hood. Slide the baffle to a position higher than the underwear. S2, inflate the sealing ring to tightly seal the top and bottom openings of the underwear onto the steam hood, preventing steam leakage and ensuring stable internal pressure of the airbag; S3: Select the shaping process curve corresponding to the underwear fabric and style through the control panel, start the steam generator, and inject steam into the cavity between the steam hood and the air bag through the delivery pipe. The steam acts on the inside of the underwear through the air outlet on the steam hood. At the same time, the steam temperature and pressure in the cavity are dynamically adjusted according to the feedback from the distributed temperature sensor and pressure sensor. S4 introduces high-temperature steam from the steam pipe into the heat-conducting plate, making its surface temperature higher than the surrounding steam environment, and then sprays it out through the through holes on it, performing a combination of contact pressurization and high-temperature steam shaping on the waist and abdomen area. S5. The shaped underwear moves along the conveyor belt to the downstream drying mechanism. The circulating fan unit of the drying tunnel is started to perform gradient drying of the underwear with switchable air direction. S6. After drying, the airbag deflates and contracts, the baffle slides open, and the finished underwear is removed.