One-bath-process segmented dyeing device
Through the combination design and drying mechanism of the support frame and the mobile frame, the automatic dyeing and rapid drying of the fabric are achieved, which solves the problems of low yield, high cost and low efficiency, and improves the overall performance of the dyeing device.
Patent Information
- Application Number
- CN202422727416.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-08
- Publication Date
- 2025-08-26
- Estimated Expiration
- 2034-11-08
AI Technical Summary
The existing one-bath segmented dyeing device has low yield, high waste cost, low work efficiency and high labor cost during the fabric dyeing process, and it is easy to cause fabric damage when mechanical automatic rolling.
The design of the support frame and the moving frame is adopted. Through components such as rotating shafts, hinges, motor-driven rotating rollers and extrusion columns, the fabric is automatically rotated and dyed and extruded, and the drying mechanism is combined with the drying mechanism to reduce manual operation.
It improves the yield rate of the fabric, saves costs, improves work efficiency, and ensures the stable transfer and rapid drying of the fabric during the dyeing process.
Smart Images

Figure CN223268906U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of cloth dyeing, in particular to a one-bath segmented dyeing device. Background Art
[0002] A one-bath segmented dyeing device is a professional equipment used in the field of textile printing and dyeing. The one-bath method refers to a method of dyeing fabrics with dyes and various auxiliaries in the same dye bath, and the one-bath segmented dyeing device is designed based on the one-bath dyeing principle. It can divide the dyeing process into different stages for precise control. The main function of the device is to improve dyeing efficiency and quality, reduce water and energy consumption, and at the same time be able to more flexibly control the dyeing process to meet the dyeing needs of different fabrics and dyes.
[0003] After searching, the Chinese patent announcement number is: CN115287843A, which discloses an active acid one-bath segmented dyeing device, which includes a frame, a movable plate, a column, a guide roller A, a guide roller B and a drying box. A dye tank is set in the frame, and a feeding roller and a winding roller are set at both ends of the dye tank. A linear module is set on the frame, and the linear module drives the movable plate. A rotating plate is rotatably set on the movable plate, and a motor drives the rotating plate. The column is rotatably set on the rotating plate, and a clamping plate is rotatably set on the column. Guide rollers A and guide rollers B are rotatably set in the dye tank, and a lower squeezing roller is rotatably set in the dye tank. The drying box is set on the frame, and a bracket is set below the drying box. An upper squeezing roller is arranged on the upper rotation, a hydraulic cylinder drives the connecting bracket, an air inlet is arranged on the drying box, an air outlet is arranged at the bottom of the drying box, a fan is arranged in the air outlet, and the fan blows toward the dye tank. The invention can automatically make the cloth on the unloading roller bypass the guide rollers and pull it to the winding roller. In the existing one-bath segmented dyeing device, when dyeing the cloth, the roller brush and spraying cannot fully lay the cloth, which is not conducive to the raw material yield and wastes costs. When loading the cloth, it needs to be laid from the inside of the machine, which is very cumbersome and has low work efficiency. It needs to be pulled manually, which wastes labor costs. When the machine is automatically rolled and laid, it is easy to cause internal jamming, which damages the cloth. Utility Model Content
[0004] In order to make up for the above shortcomings, the utility model provides a one-bath segmented dyeing device, which aims to improve the problems of low raw material yield and wasteful cost, low work efficiency and wasteful labor cost in the prior art.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a one-bath segmented dyeing device, comprising a support frame, the rear side of the outer wall of the support frame is rotatably connected to a rotating shaft 1, the top of the outer wall of the rotating shaft 1 is fixedly connected to a movable frame, the rear side of the outer wall of the movable frame is rotatably connected to a hinge, the right side of the outer wall of the movable frame is fixedly connected to a motor 2, the output end of the motor 2 is fixedly connected to a rotating roller, the front and rear ends of the outer wall of the rotating roller are penetrated by a dye tank, the rear side of the outer wall of the movable frame is fixedly connected to an electric push rod, the output end of the electric push rod is rotatably connected to an extrusion column, and the front and rear sides of the outer wall of the extrusion column are fixed The gear train is fixedly connected to the gear one, and the front and rear sides of the inner wall of the movable frame are fixedly connected to the rack, and the rack is meshed with the gear one. The middle part of the outer wall of the gear one is rotatably connected to the support roller, and the left side of the outer wall of the movable frame is fixedly connected to the motor three, and the output end of the motor three is fixedly connected to the rotating rod, and the front end of the rotating rod is fixedly connected to the gear two. The upper and lower ends of the left side of the inner wall of the movable frame are rotatably connected to the squeezing rollers, and the front and rear sides of the outer walls of the two squeezing rollers are fixedly connected to the gear three, and the gear three is meshed with the gear two. The rear side of the outer wall of the support frame is fixedly connected to a drying mechanism, and the drying mechanism is used to dry cloth.
[0006] Through the above technical solution: the rotating shaft on the rear side of the support frame is connected to the mobile frame, which rotates through the hinge to enhance stability. The motor on the right side of the support frame drives the rotating roller to rotate the cloth and fully dye it, thereby improving the yield rate. The electric push rod on the rear side of the mobile frame is connected to the extrusion column, and the gears on both sides are engaged with the inner wall rack. The support roller is fixed in the middle of the gear to adjust the height of the cloth and guide it to stabilize the cloth transmission. The left motor drives the rotating rod and gear, and the extrusion rollers on both sides of the inner wall are engaged with the gears and rotate synchronously to extrude the cloth. A drying mechanism is also installed on the rear side of the support frame for drying the cloth.
[0007] As a further description of the above technical solution:
[0008] The drying mechanism includes a motor 1, which is fixedly connected to the rear side of the outer wall of the support frame, the output end of the motor 1 is fixedly connected to a connecting rod, the front end of the connecting rod is fixedly connected to an exhaust fan, the middle part of the inner wall of the support frame is fixedly connected to the exhaust fan, the rear end of the exhaust fan is fixedly connected to an outer shell, exhaust holes are provided on the left and right sides of the top of the outer wall of the outer shell, a dryer is fixedly connected to the rear side of the inner wall of the outer shell, a drying pipe is installed on the inner wall of the dryer, and the drying pipe is arranged on the inner wall of the outer shell.
[0009] Through the above technical solution: motor 1 is fixed on the rear side of the support frame, connecting rod and exhaust fan to exhaust a large amount of wind outward and diffuse hot air. The outer shell has exhaust holes to blow and dry the fabric. The dryer and drying pipe are connected to the rear side of the inner wall of the outer shell to ensure uniform heat distribution.
[0010] As a further description of the above technical solution:
[0011] A hydraulic rod is fixedly connected to the right side of the outer wall of the support frame, and an output end of the hydraulic rod is rotatably connected to a rotating column, and the rotating column is rotatably connected to the right side of the outer wall of the moving frame.
[0012] Through the above technical solution: the right side of the outer wall of the support frame is connected to the rotating column through a hydraulic rod, and the other end of the rotating column is connected to the right side of the outer wall of the mobile frame, so as to realize automatic drive opening, reduce manual operation and save manpower.
[0013] As a further description of the above technical solution:
[0014] A plurality of fixing brackets are installed on the front and rear sides of the outer wall of the support frame, and the outer walls of the plurality of fixing brackets are threadedly connected with bolts 1.
[0015] Through the above technical solution: installing the fixing frame and bolts on the outer wall of the support frame to improve the stability of the motor operation.
[0016] As a further description of the above technical solution:
[0017] A handle is fixedly connected to the front side of the outer wall of the movable frame, and an anti-slip sleeve is installed on the outer wall of the handle.
[0018] Through the above technical solution: an anti-slip cover is installed on the handle on the front side of the mobile frame to enhance operational safety and facilitate manual operation by users.
[0019] As a further description of the above technical solution:
[0020] A storage box is installed on the right side of the outer wall of the support frame, and a second bolt is threadedly connected to the inner wall of the storage box.
[0021] Through the above technical solution: the right side of the support frame is equipped with a storage box with bolts on the inner wall, which is convenient for users to store items.
[0022] As a further description of the above technical solution:
[0023] The top of the dye tank is fixedly connected to a second rotating shaft, and the top of the outer wall of the second rotating shaft is rotatably connected to a cover plate.
[0024] Through the above technical solution: a rotating shaft is installed on the top of the dye tank, and a cover plate is rotated on it, which is convenient for opening, closing and maintenance.
[0025] As a further description of the above technical solution:
[0026] The four corners of the bottom of the support frame are fixedly connected with supporting legs, and adjacent sides of the outer walls of the supporting legs are fixedly connected with diagonal braces.
[0027] Through the above technical solution: legs are provided at the four corners of the bottom of the support frame to provide stable support for the device, and the structural stability and safety are enhanced by the diagonal braces on one side of the outer wall.
[0028] The utility model has the following beneficial effects:
[0029] 1. In the utility model, the support frame is connected to the mobile frame through a rotating shaft, and the latter is rotated by a hinge to open and close the dye device, which is convenient for maintenance and easy to put in the cloth. The motor drives the rotating roller, and the dye tank passes through the rotating roller. The mobile frame is connected to the electric push rod, and its output end is connected to the extrusion column. The support roller is connected to the gear to realize automatic rendering of the cloth, increase the raw material yield, save costs, and improve work efficiency.
[0030] 2. In the utility model, the motor is fixed on the rear side of the support frame, the output end is fixedly connected to the fan, the shell is provided with an exhaust, and the exhaust is carried out in a fixed direction. The rear side of the inner wall of the shell is connected to the dryer and the drying pipe to release heat to the outside, thereby achieving the drying process of the fabric, improving the finished product efficiency and the rapid drying of the pigment after rendering. BRIEF DESCRIPTION OF THE DRAWINGS
[0031] Figure 1 This is a three-dimensional diagram of a one-bath segmented dyeing device proposed by the utility model;
[0032] Figure 2 This is a top view of a one-bath segmented dyeing device proposed by the utility model;
[0033] Figure 3 This is a rear view of a one-bath segmented dyeing device proposed by the utility model;
[0034] Figure 4 This is an exploded diagram of the structure of a one-bath segmented dyeing device proposed in the utility model;
[0035] Figure 5 This is a disassembled diagram of the drying mechanism of a one-bath segmented dyeing device proposed in the utility model.
[0036] Legend:
[0037] 1. Support frame; 2. Drying mechanism; 201. Motor 1; 202. Connecting rod; 203. Exhaust fan; 204. Casing; 205. Exhaust hole; 206. Dryer; 207. Drying tube; 3. Moving frame; 4. Rotating shaft 1; 5. Hinge; 6. Motor 2; 7. Rotating roller; 8. Dye tank; 9. Extrusion column; 10. Gear 1; 11. Rack; 12. Support roller; 13. Motor 3; 14. Rotating rod; 15. Gear 2; 16. Gear 3; 17. Extrusion roller; 18. Electric push rod; 19. Hydraulic rod; 20. Rotating column; 21. Fixed frame; 22. Bolt 1; 23. Handle; 24. Anti-slip cover; 25. Storage box; 26. Bolt 2; 27. Rotating shaft 2; 28. Cover plate; 29. Support leg; 30. Diagonal brace. DETAILED DESCRIPTION
[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0039] Reference Figure 1 、 Figure 2 and Figure 4 The utility model provides an embodiment of a one-bath segmented dyeing device, comprising a support frame 1, the rear side of the outer wall of the support frame 1 is rotatably connected to a rotating shaft 1 4, the top of the outer wall of the rotating shaft 1 4 is fixedly connected to a moving frame 3, the rear side of the outer wall of the moving frame 3 is rotatably connected to a hinge 5, the right side of the outer wall of the moving frame 3 is fixedly connected to a motor 2 6, the output end of the motor 2 6 is fixedly connected to a rotating roller 7, the front and rear ends of the outer wall of the rotating roller 7 are penetrated by a dye tank 8, the rear side of the outer wall of the moving frame 3 is fixedly connected to an electric push rod 18, the output end of the electric push rod 18 is rotatably connected to an extrusion column 9, the front and rear sides of the outer wall of the extrusion column 9 are both fixedly connected to a gear 10, and the front and rear sides of the inner wall of the moving frame 3 are both fixedly connected to a rack 11. The rack 11 is meshed with the gear 10, and the middle part of the outer wall of the gear 10 is rotatably connected to the support roller 12. The left side of the outer wall of the mobile frame 3 is fixedly connected to the motor 3 13, and the output end of the motor 3 13 is fixedly connected to the rotating rod 14. The front end of the rotating rod 14 is fixedly connected to the gear 2 15. The upper and lower ends of the left side of the inner wall of the mobile frame 3 are rotatably connected to the squeezing rollers 17. The front and rear sides of the outer walls of the two squeezing rollers 17 are fixedly connected to the gear 3 16. The gear 3 16 is meshed with the gear 2 15. The rear side of the outer wall of the support frame 1 is fixedly connected to the drying mechanism 2, and the drying mechanism 2 is used to dry cloth. A storage box 25 is installed on the right side of the outer wall of the support frame 1, and the inner wall of the storage box 25 is threadedly connected with the bolt 2 26.
[0040] Specifically, a rotating shaft 4 is installed on the rear side of the support frame 1, and a mobile frame 3 is connected to the outer wall of the rotating shaft to realize the rotation adjustment of the mobile frame 3. The mobile frame 3 rotates through the hinge 5 to increase the stability of the structure. A motor 2 6 is installed on the right side to drive the rotating roller 7. The rotating roller 7 drives the cloth to rotate forward. The rotating roller 7 passes through the dye tank 8, so that the cloth is dyed more comprehensively and the yield rate is increased. There is also an electric push rod 18 on the rear side of the mobile frame 3, which is connected to the extrusion column 9. Gears 10 are installed on both sides, which engage with the inner wall rack 11 to extrude the cloth using the rack 11 can adjust the height to achieve guiding control of the cloth. The support roller 12 is fixed in the middle of gear 10 to stabilize the cloth transmission and prevent deviation. The left side of the mobile frame 3 is equipped with a motor 3 13 to drive the rotating rod 14 and the gear 2 15 to control the rotation. Squeezing rollers 17 are installed on both sides of the inner wall to engage with the gear 3 16 to ensure synchronous rotation and squeeze the dyed cloth. The rear side of the support frame 1 is equipped with a drying mechanism 2 for drying the cloth. The right side of the support frame 1 is equipped with a storage box 25 and the inner wall is equipped with a bolt 26 for users to store items.
[0041] Reference Figure 1 and Figure 5 , the drying mechanism 2 includes a motor 201, which is fixedly connected to the rear side of the outer wall of the support frame 1, and the output end of the motor 201 is fixedly connected to a connecting rod 202, and the front end of the connecting rod 202 is fixedly connected to an exhaust fan 203, and the middle part of the inner wall of the support frame 1 is fixedly connected to the exhaust fan 203, and the rear end of the exhaust fan 203 is fixedly connected to the shell 204, and exhaust holes 205 are provided on the left and right sides of the top of the outer wall of the shell 204. A dryer 206 is fixedly connected to the rear side of the inner wall of the shell 204, and a drying pipe 207 is installed on the inner wall of the dryer 206. The drying pipe 207 is arranged on the inner wall of the shell 204. A plurality of fixing brackets 21 are installed on the front and rear sides of the outer wall of the support frame 1, and the outer walls of the plurality of fixing brackets 21 are threadedly connected with bolts 22. The front side of the outer wall of the movable frame 3 is fixedly connected to a handle 23, and the outer wall of the handle 23 is installed with an anti-slip sleeve 24;
[0042] Specifically, motor 1 201 is fixed to the rear side of the support frame 1 and is connected to the connecting rod 202 and the exhaust fan 203. The exhaust fan 203 is responsible for exhausting a large amount of air and diffusing the hot air. The outer shell 204 is provided with an exhaust hole 205 for blowing and drying the cloth. The rear side of the inner wall of the outer shell 204 is connected with a dryer 206 and a drying pipe 207 to ensure uniform heat distribution. A fixing frame 21 and a bolt 1 22 are installed on the outer wall of the support frame 1 to enhance the stability of the motor during operation. The front handle 23 of the movable frame 3 is installed with an anti-slip cover 24 to improve operational safety and facilitate user manual operation.
[0043] Reference Figure 1 、 Figure 2 and Figure 3, a hydraulic rod 19 is fixedly connected to the right side of the outer wall of the support frame 1, and the output end of the hydraulic rod 19 is rotatably connected to a rotating column 20, and the rotating column 20 is rotatably connected to the right side of the outer wall of the mobile frame 3. The top of the dye tank 8 is fixedly connected to a second rotating shaft 27, and the top of the outer wall of the second rotating shaft 27 is rotatably connected to a cover plate 28. The four corners of the bottom of the support frame 1 are fixedly connected to support legs 29, and the adjacent sides of the outer walls of the support legs 29 are fixedly connected to diagonal braces 30;
[0044] Specifically, a hydraulic rod 19 is fixedly connected to the right side of the outer wall of the support frame 1, and the output end of the hydraulic rod 19 is connected to the rotating column 20, and the other end of the rotating column 20 is connected to the right side of the outer wall of the mobile frame 3, so that the structure can be automatically driven to open, avoiding manual operation and saving manpower. A rotating shaft 27 is fixed on the top of the dye tank 8, and a cover plate 28 is rotated on the top of the outer wall of the rotating shaft 27, so that the dye tank 8 can be easily opened and closed, and dye can be added to the interior and repairs can be carried out. In addition, at the four corners of the bottom of the support frame 1, there are fixed legs 29. The legs 29 provide stable support for the device, and a diagonal brace 30 is fixedly connected to the side adjacent to its outer wall, further enhancing the stability and safety of the entire structure.
[0045] Working principle: The rear side of the outer wall of the support frame 1 is fixed with a hinge 5 and a rotating shaft 4. The top of the hinge 5 is rotated with a mobile frame 3. The hinge 5 can be used to open and close the mobile frame 3 and repair the internal structure. The rear side of the outer wall of the support frame 1 is fixed with a motor 2 6. The output end of the motor 2 6 rotates a rotating roller 7 to roll the cloth and drive the cloth forward. The outer wall of the rotating roller 7 is provided with a dye tank 8 to dye the cloth, improve work efficiency, dye the cloth comprehensively, and increase the success rate of the product. An extrusion column 9 is fixed in the middle of the mobile frame 3. The movable push rod 18 meshes with the gear 10 and the rack 11 fixed at both ends of the extrusion column 9, which can realize the accurate adjustment of the extrusion column 9 to ensure that the cloth will not get stuck when rotating, thereby improving work efficiency. The right side of the outer wall of the support frame 1 is fixedly connected to the motor 3 13, and the output end of the motor 3 13 rotates with a rotating rod 14. The top of the rotating rod 14 is fixedly connected to the gear 2 15, and the gear 3 16 meshed with the upper and lower ends of the gear 2 15 drives the extrusion roller 17 to rotate, squeeze the cloth surface, and roll the cloth forward, saving labor and improving work efficiency.
[0046] A motor 201 is fixed to the rear side of the outer wall of the support frame 1, and a connecting rod 202 is fixedly connected to the output end of the motor 201. The connecting rod 202 is used to drive the exhaust fan 203 fixed at the front end to rotate. The output rotation of the motor 201 drives the exhaust fan 203 to exhaust air, and diffuses the heat discharged by the dryer 206 arranged on the outer wall of the exhaust fan 203. A drying pipe 207 is installed on the right end of the dryer 206 and is arranged on the outer wall of the exhaust fan 203 to make the heat diffusion more uniform. The outer wall of the drying pipe 207 is installed with an outer shell 204, and the outer wall of the outer shell 204 is provided with exhaust holes 205, which are conducive to heat gathering, centralized drying of the cloth, and improved drying efficiency. The outer shell 204 is fixedly connected to the middle part of the inner wall of the movable frame 3 through the exhaust fan 203 to increase the stability of the structure.
[0047] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A one-bath segmented dyeing device, comprising a support frame (1), characterized in that: The outer wall rear side of the support frame (1) is rotatably connected to a rotating shaft 1 (4), the outer wall top of the rotating shaft 1 (4) is fixedly connected to a moving frame (3), the outer wall rear side of the moving frame (3) is rotatably connected to a hinge (5), the outer wall right side of the moving frame (3) is fixedly connected to a motor 2 (6), the output end of the motor 2 (6) is fixedly connected to a rotating roller (7), the outer wall front and rear ends of the rotating roller (7) are penetrated by a dye tank (8), the outer wall rear side of the moving frame (3) is fixedly connected to an electric push rod (18), the output end of the electric push rod (18) is rotatably connected to an extrusion column (9), the outer wall front and rear sides of the extrusion column (9) are fixedly connected to a gear 1 (10), the inner wall front and rear sides of the moving frame (3) are fixedly connected to a rack (1 1), the rack (11) is meshedly connected with the gear 1 (10), the middle part of the outer wall of the gear 1 (10) is rotatably connected with a support roller (12), the left side of the outer wall of the movable frame (3) is fixedly connected with a motor 3 (13), the output end of the motor 3 (13) is fixedly connected with a rotating rod (14), the front end of the rotating rod (14) is fixedly connected with a gear 2 (15), the upper and lower ends of the left side of the inner wall of the movable frame (3) are rotatably connected with squeezing rollers (17), the front and rear sides of the outer walls of the two squeezing rollers (17) are fixedly connected with gear 3 (16), the gear 3 (16) is meshedly connected with gear 2 (15), the rear side of the outer wall of the support frame (1) is fixedly connected with a drying mechanism (2), and the drying mechanism (2) is used for drying cloth.
2. The one-bath segmented dyeing device according to claim 1, characterized in that: The drying mechanism (2) comprises a motor 1 (201), wherein the motor 1 (201) is fixedly connected to the rear side of the outer wall of the support frame (1), the output end of the motor 1 (201) is fixedly connected to a connecting rod (202), the front end of the connecting rod (202) is fixedly connected to an exhaust fan (203), the middle part of the inner wall of the support frame (1) is fixedly connected to the exhaust fan (203), the rear end of the exhaust fan (203) is fixedly connected to a housing (204), the left and right sides of the top of the outer wall of the housing (204) are provided with exhaust holes (205), the rear side of the inner wall of the housing (204) is fixedly connected to a dryer (206), the inner wall of the dryer (206) is installed with a drying pipe (207), and the drying pipe (207) is arranged on the inner wall of the housing (204).
3. The one-bath segmented dyeing device according to claim 1, characterized in that: A hydraulic rod (19) is fixedly connected to the right side of the outer wall of the support frame (1), and an output end of the hydraulic rod (19) is rotatably connected to a rotating column (20), and the rotating column (20) is rotatably connected to the right side of the outer wall of the mobile frame (3).
4. The one-bath segmented dyeing device according to claim 1, characterized in that: A plurality of fixing frames (21) are installed on the front and rear sides of the outer wall of the support frame (1), and the outer walls of the plurality of fixing frames (21) are threadedly connected with bolts (22).
5. The one-bath segmented dyeing device according to claim 1, characterized in that: A handle (23) is fixedly connected to the front side of the outer wall of the movable frame (3), and an anti-slip sleeve (24) is installed on the outer wall of the handle (23).
6. The one-bath segmented dyeing device according to claim 1, characterized in that: A storage box (25) is installed on the right side of the outer wall of the support frame (1), and a second bolt (26) is threadedly connected to the inner wall of the storage box (25).
7. The one-bath segmented dyeing device according to claim 1, characterized in that: The top of the dye tank (8) is fixedly connected to a second rotating shaft (27), and the top of the outer wall of the second rotating shaft (27) is rotatably connected to a cover plate (28).
8. The one-bath segmented dyeing device according to claim 1, characterized in that: Support legs (29) are fixedly connected at the four corners of the bottom of the support frame (1), and adjacent sides of the outer walls of the support legs (29) are fixedly connected with diagonal braces (30).
Citation Information
Patent Citations
Active acid one-bath process segmented dyeing device
CN115287843A