Foaming structure of automobile sun shield
By using a multi-stage drive system and precisely controlled addition of foaming agent, the problem of uneven foaming in traditional automotive sun visors has been solved, improving the strength and quality of the sun visors.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TAICANG FUYU PLASTIC TECH CO LTD
- Filing Date
- 2025-04-24
- Publication Date
- 2026-04-21
AI Technical Summary
In the traditional automotive sun visor foaming process, the foaming agent is added at a fixed location, resulting in uneven foaming and affecting the strength and quality of the sun visor.
It adopts a multi-stage drive system, including a high-pressure foaming mixing head, an electric push rod, a secondary linear motor and a main linear motor, and precisely controls the addition position and proportion of the foaming agent. The mold flipping and locking unit ensures the uniformity of foaming.
This method achieves uniform distribution of the foaming agent in the mold, improves the finished strength and process quality of the automotive sun visor, and reduces defects such as flash and uneven thickness.
Smart Images

Figure CN224145187U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive sun visor technology, specifically to a foaming structure for an automotive sun visor. Background Technology
[0002] Sun visors are designed to prevent glare from the sun and protect against its harmful effects. Some can be moved around to adjust the intensity of sunlight hitting the eyes, thus preventing accidents. They also have a good cooling effect and can be used indoors, such as in cars. Sun visors also make it difficult for sunlight to directly enter the car, providing a good cooling effect and protecting the dashboard and leather seats. Sun visors can also be used outdoors.
[0003] Traditional car sun visors require foaming molding during production. Traditional foaming equipment often adds the foaming agent in a fixed position, which can lead to uneven foaming due to the foaming agent accumulating together. This can affect the strength of the car sun visor. Therefore, we propose a foaming structure for car sun visors. Utility Model Content
[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide a foaming structure for automotive sun visors. It adopts a multi-stage drive to precisely control the amount and position of foaming agent, and the mold adopts a flip-up design to effectively prevent uneven foaming and ensure the process quality of the product. It can effectively solve the problems in the background technology.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a foaming structure for an automobile sun visor, comprising a platform and a top mold;
[0006] Platform: A placement seat is provided on the rear side, and liquid tanks are placed on both sides inside the placement seat. The inside of the liquid tank is inserted into the bottom end of the suction pipe, and the top end of the liquid tank is connected to the inlet of the high-pressure foaming mixing head. An adjustment unit is provided on the front side of the platform, and a bottom mold is installed on the outside of the adjustment unit. The top mold is hinged to the rear side of the top surface of the bottom mold, and a locking unit is provided on the side of the bottom mold.
[0007] It also includes a controller, which is located on the left side of the platform. The input end of the high-pressure foaming mixing head is electrically connected to the output end of the controller, and the input end of the controller is electrically connected to the output end of an external power supply.
[0008] The high-pressure foaming mixing head can control the stability of the raw material mixing ratio inside the two liquid tanks, avoiding the ratio deviation caused by the residue of traditional pipelines.
[0009] Furthermore, the adjustment unit includes a fixed frame, a main motor, a gear, a fixed shaft, and a gear ring. The fixed shaft is fixed inside a groove on the front side of the platform and is rotatably installed with a shaft hole in the middle of the bottom mold. The gear is fixed on the left side of the bottom mold. The fixed frame is evenly fixed in the groove on the front side of the platform. The main motor is fixedly installed on the front side of the fixed frame. The output shaft of the main motor is connected to the left end of the gear. The gear meshes with the gear ring. The input end of the main motor is electrically connected to the output end of the controller. Starting the main motor drives the gear and gear ring to mesh, thereby causing the mold to rotate. This allows the foaming agent to foam evenly in the mold, thus solving the problem of uneven foaming affecting the strength of the subsequent automotive sun visor product.
[0010] Furthermore, the adjustment unit also includes an electric push rod, a secondary linear motor, a bracket, and a main linear motor. There are two main linear motors, which are fixed on the left and right sides of the top surface of the platform, respectively. The top surface of the main linear motor's moving part is connected to the bottom end of one side of the bracket. Electric push rods are provided on both sides of the top surface of the bracket. The bottom end of the electric push rod is connected to the stator on one side of the secondary linear motor. The bottom surface of the secondary linear motor's moving part is installed on the top of the high-pressure foaming mixing head. The input ends of the electric push rod, the secondary linear motor, and the main linear motor are electrically connected to the output end of the controller. The electric push rod, the secondary linear motor, and the main linear motor form a multi-stage drive to accurately position the high-pressure foaming mixing head to ensure uniform distribution of the foaming agent.
[0011] Furthermore, the locking unit includes a locking groove, a locking plate, a support base, a screw, a motor, a frame, and an electric telescopic rod. There are two electric telescopic rods, each fixed to the left and right sides of the bottom mold. The front end of each electric telescopic rod is connected to one end of the rear side of the frame. A support base is fixed in the middle of the frame, and a motor is mounted on the bottom surface of the support base. The output shaft of the motor is connected to the bottom end of the screw. The screw is threadedly connected to a screw hole on the surface of the locking plate, which is slidably mounted inside the support base. The locking groove is located on the top surface of the top mold. The input ends of the motor and the electric telescopic rod are electrically connected to the output end of a controller. The electric telescopic rod retracts and, in conjunction with lifting and adjusting, engages the locking plate inside the locking groove. This ensures mold alignment accuracy and reduces defects such as flash or uneven thickness.
[0012] Furthermore, it also includes a hydraulic rod and a clamping frame. The hydraulic rod is fixed inside the placement base, and the rear end of the hydraulic rod is connected to the middle of the clamping frame. The input end of the hydraulic rod is electrically connected to the output end of the controller. The hydraulic rod drives the clamping frame to press against the outside of the liquid tank to facilitate subsequent replacement by personnel.
[0013] Furthermore, it also includes a box frame and a waste box. There are two box frames, which are fixed to the front side of the bottom surface of the platform. The waste box is slidably placed inside the two box frames. The waste box inside the box frame can collect the overflow and waste during the processing to avoid polluting the working environment.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: The foamed structure of this car sun visor has the following advantages:
[0015] 1. The high-pressure foaming mixing head can control the stability of the mixing ratio of raw materials inside the two liquid tanks, avoiding the ratio deviation caused by the residue of traditional pipelines. The main motor is started to drive the gear and gear ring to rotate the mold, which can make the foaming agent foam evenly in the mold, so as to solve the problem that uneven foaming affects the strength of the finished car sun visor.
[0016] 2. By employing an electric push rod, a secondary linear motor, and a main linear motor to form a multi-stage drive, the high-pressure foaming mixing head is precisely positioned to ensure uniform distribution of the foaming agent.
[0017] 3. The locking plate is inserted into the locking groove by retracting the electric telescopic rod and adjusting the lifting mechanism. This ensures the accuracy of mold alignment and reduces defects such as flash or uneven thickness. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the rear side structure of the platform body of this utility model;
[0020] Figure 3 This utility model Figure 1 A magnified schematic diagram of the structure at point A in the middle.
[0021] In the diagram: 1. Body, 2. Adjustment unit, 21. Fixing frame, 22. Main motor, 23. Gear, 24. Fixing shaft, 25. Gear ring, 26. Electric push rod, 27. Secondary linear motor, 28. Bracket, 29. Main linear motor, 3. Locking unit, 31. Locking groove, 32. Locking plate, 33. Support base, 34. Screw, 35. Motor, 36. Frame, 37. Electric telescopic rod, 4. Placement seat, 5. Liquid tank, 6. Suction pipe, 7. High-pressure foaming mixing head, 8. Bottom mold, 9. Top mold, 10. Hydraulic rod, 11. Pressing frame, 12. Box frame, 13. Waste box, 14. Controller. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Please see Figure 1-3 This embodiment provides a technical solution: a foaming structure for an automotive sun visor, comprising a platform 1 and a top mold 9;
[0024] Platform 1: A placement seat 4 is provided on the rear side. Liquid tanks 5 are placed on both sides inside the placement seat 4. The bottom end of the liquid tank 5 is inserted into the liquid suction pipe 6. The top end of the liquid tank 5 is connected to the liquid inlet of the high-pressure foaming mixing head 7. An adjustment unit 2 is provided on the front side of the platform 1. A bottom mold 8 is installed on the outside of the adjustment unit 2. A top mold 9 is hinged to the rear side of the top surface of the bottom mold 8. The adjustment unit 2 includes a fixing frame 21, a main motor 22, a gear 23, a fixing shaft 24, and a gear ring 25. The fixing shaft 24 is fixed inside the groove on the front side of the platform 1. The fixing shaft 24 is rotatably installed with the shaft hole in the middle of the bottom mold 8. The gear 23 is fixed on the left side of the bottom mold 8. The fixing frame 21 is evenly fixed in the groove on the front side of the platform 1. A main motor 22 is fixedly mounted on the front side of the fixed frame 21. The output shaft of the main motor 22 is connected to the left end of the gear 23. The gear 23 meshes with the gear ring 25. The input end of the main motor 22 is electrically connected to the output end of the controller 14. Starting the main motor 22 drives the gear 23 to mesh with the gear ring 25, thereby causing the mold to rotate. This ensures that the foaming agent foams evenly in the mold, thus solving the problem of uneven foaming affecting the strength of the finished car sun visor. The adjustment unit 2 also includes an electric push rod 26, a secondary linear motor 27, a bracket 28, and a main linear motor 29. There are two main linear motors 29, which are fixed on the left and right sides of the top surface of the platform 1, respectively. The top surface of the moving part of the main linear motor 29 is connected to the bottom end of one side of the bracket 28. Electric push rods 26 are provided on both sides of the top surface of the bracket 28. The bottom end of the electric push rod 26 is connected to the stator on one side of the auxiliary linear motor 27. The bottom surface of the mover seat of the auxiliary linear motor 27 is installed on the top of the high-pressure foaming mixing head 7. The input ends of the electric push rods 26, the auxiliary linear motor 27 and the main linear motor 29 are electrically connected to the output end of the controller 14. The electric push rods 26, the auxiliary linear motor 27 and the main linear motor 29 form a multi-stage drive to accurately position the high-pressure foaming mixing head 7 to ensure uniform distribution of the foaming agent. The side of the bottom mold 8 is provided with a locking unit 3. The locking unit 3 includes a locking groove 31, a locking plate 32, a support base 33, a screw 34, a motor 35, a frame 36 and an electric telescopic rod 37. There are two telescopic rods 37, which are fixed on the left and right sides of the bottom mold 8 respectively. The front end of the electric telescopic rod 37 is connected to one end of the rear side of the frame 36. A support base 33 is fixed in the middle of the frame 36. A motor 35 is provided on the bottom surface of the support base 33. The output shaft of the motor 35 is connected to the bottom end of the screw 34. The screw 34 is threadedly connected to the screw hole on the surface of the locking plate 32 that is slidably installed inside the support base 33. The locking groove 31 is opened on the top surface of the top mold 9. The input ends of the motor 35 and the electric telescopic rod 37 are electrically connected to the output end of the controller 14. The electric telescopic rod 37 retracts and cooperates with the lifting adjustment to lock the locking plate 32 into the inside of the locking groove 31. This ensures the mold closing alignment accuracy and reduces defects such as flash or uneven thickness.
[0025] The system also includes a controller 14, located on the left side of the platform 1. The input of the high-pressure foaming mixing head 7 is electrically connected to the output of the controller 14, and the input of the controller 14 is electrically connected to the output of an external power source. The high-pressure foaming mixing head 7 can control the stability of the mixing ratio of raw materials inside the two liquid tanks 5, avoiding the ratio deviation caused by the residue of traditional pipelines. The system also includes a hydraulic rod 10 and a pressure frame 11. The hydraulic rod 10 is fixed inside the placement seat 4, and the rear end of the hydraulic rod 10 is connected to the middle of the pressure frame 11. The input of the hydraulic rod 10 is electrically connected to the output of the controller 14. The hydraulic rod 10 drives the pressure frame 11 to press against the outside of the liquid tank 5 for easy replacement by personnel. The system also includes a box frame 12 and a waste box 13. There are two box frames 12, which are fixed to the front side of the bottom surface of the platform 1. The waste box 13 is slidably placed inside the two box frames 12. The waste box 13 inside the box frame 12 can collect the overflow and waste during the processing, avoiding pollution of the working environment.
[0026] The working principle of the foaming structure of the car sun visor provided by this utility model is as follows: First, the liquid tank 5 is placed inside the placement seat 4, and the hydraulic rod 10 is activated to fix the pressure frame 11 to the liquid tank 5. Then, the electric push rod 26, the auxiliary linear motor 27 and the main linear motor 29 form a multi-stage drive to accurately position the high-pressure foaming mixing head 7 to ensure uniform distribution of the foaming agent. The high-pressure foaming mixing head 7 can control the stability of the raw material mixing ratio inside the two liquid tanks 5, avoiding the ratio deviation caused by the residue of traditional pipelines. When the foaming agent injection is completed... After closing the top mold 9, the electric telescopic rod 37 is activated in conjunction with the motor 35 to lock the locking plate 32 inside the locking groove 31. This ensures the alignment accuracy of the mold and reduces defects such as flash or uneven thickness. Then, the main motor 22 is activated to drive the gear 23 to mesh with the gear ring 25 to rotate the mold. This allows the foaming agent to foam evenly in the mold, thus solving the problem of uneven foaming affecting the strength of the finished car sun visor. Finally, the waste box 13 inside the box frame 12 can collect the overflow and waste materials during the processing to avoid polluting the working environment.
[0027] It is worth noting that the controller 14 disclosed in the above embodiments is model KV-8000. The main motor 22 and motor 35 can be freely configured according to the actual application scenario. It is recommended to use servo motors of model 80M-03230C10-C. The main linear motor 29 and auxiliary linear motor 27 can be linear motors of model JL-C16. The high-pressure foaming mixing head 7 can be a high-pressure foaming mixing head of model JT1014-2K. The controller 14 controls the operation of the main motor 22, motor 35, electric push rod 26, electric telescopic rod 37, main linear motor 29, auxiliary linear motor 27, high-pressure foaming mixing head 7 and hydraulic rod 10 using methods commonly used in the prior art.
[0028] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A foamed structure for an automotive sun visor, characterized in that: Includes the platform (1) and the top mold (9); Platform (1): The rear side is provided with a placement seat (4), and liquid tanks (5) are placed on both sides inside the placement seat (4). The interior of the liquid tank (5) is connected to the bottom end of the suction pipe (6). The top of the liquid tank (5) is connected to the inlet of the high-pressure foaming mixing head (7). The front side of the platform (1) is provided with an adjustment unit (2). The outside of the adjustment unit (2) is equipped with a bottom mold (8). The top mold (9) is hinged to the rear side of the top surface of the bottom mold (8). The side of the bottom mold (8) is provided with a locking unit (3). The adjustment unit (2) includes a fixed frame (21), a main motor (22), a gear (23), a fixed shaft (24), and a gear ring (25). The fixed shaft (24) is fixed inside the groove on the front side of the platform (1). The fixed shaft (24) is rotatably installed with the shaft hole in the middle of the bottom mold (8). The gear (23) is fixed on the left side of the bottom mold (8). The fixed frame (21) is evenly fixed in the groove on the front side of the platform (1). The main motor (22) is fixedly installed on the front side of the fixed frame (21). The output shaft of the main motor (22) is connected to the left end of the gear (23). The gear (23) meshes with the gear ring (25). The input end of the main motor (22) is electrically connected to the output end of the controller (14). The adjustment unit (2) also includes an electric push rod (26), a secondary linear motor (27), a bracket (28), and a main linear motor (29). There are two main linear motors (29), which are fixed on the left and right sides of the top surface of the platform (1). The top surface of the main linear motor (29) mover seat is connected to the bottom end of one side of the bracket (28). Electric push rods (26) are provided on both sides of the top surface of the bracket (28). The bottom end of the electric push rod (26) is connected to the stator of one side of the secondary linear motor (27). The bottom surface of the secondary linear motor (27) mover seat is installed on the top of the high-pressure foaming mixing head (7). The input ends of the electric push rod (26), the secondary linear motor (27), and the main linear motor (29) are electrically connected to the output end of the controller (14). The system also includes a controller (14), which is located on the left side of the platform (1). The input end of the high-pressure foaming mixing head (7) is electrically connected to the output end of the controller (14), and the input end of the controller (14) is electrically connected to the output end of an external power supply.
2. The foamed structure of claim 1, wherein: The locking unit (3) includes a locking groove (31), a locking plate (32), a support base (33), a screw (34), a motor (35), a frame (36), and an electric telescopic rod (37). There are two electric telescopic rods (37) and they are fixed on the left and right sides of the bottom mold (8). The front end of the electric telescopic rod (37) is connected to one end of the rear side of the frame (36). The support base (33) is fixed in the middle of the frame (36). The bottom surface of the support base (33) is provided with a motor (35). The output shaft of the motor (35) is connected to the bottom end of the screw (34). The screw (34) is threadedly connected to the screw hole on the surface of the locking plate (32) which is slidably installed inside the support base (33). The locking groove (31) is opened on the top surface of the top mold (9). The input ends of the motor (35) and the electric telescopic rod (37) are electrically connected to the output end of the controller (14).
3. The foamed structure of claim 1, wherein: It also includes a hydraulic rod (10) and a clamping frame (11). The hydraulic rod (10) is fixed inside the placement seat (4). The rear end of the hydraulic rod (10) is connected to the middle part of the clamping frame (11). The input end of the hydraulic rod (10) is electrically connected to the output end of the controller (14).
4. The foamed structure of claim 1, wherein: It also includes a box frame (12) and a waste box (13). There are two box frames (12) and they are fixed to the front side of the bottom surface of the platform (1) respectively. The waste box (13) is slidably placed inside the two box frames (12).