A premixing device for automotive interior surface treatment agents

Abstract

This utility model discloses a premixing device for automotive interior surface treatment agents, belonging to the technical field of premixing devices. It includes a mixing cylinder with a stirring mechanism rotatably connected inside. A material discharge mechanism is located within the mixing cylinder's inner cavity, positioned above the stirring mechanism. Through the material discharge mechanism and a separating tray, the mixing cylinder's working chamber is divided into two premixing chambers, enabling independent premixing of solid and liquid raw materials. This effectively prevents direct contact between solid and liquid raw materials before reaching the set process conditions, preventing premature contact that could trigger a chemical reaction and thus avoiding decomposition or deactivation of the active ingredients. This ensures stable premixing effect and treatment agent performance. The premixing design allows solid raw materials to be initially dispersed through a dry mixing process, preventing localized agglomeration and clumping when directly added to the liquid, effectively reducing the possibility of material clumping leading to lower solid-liquid mixing efficiency.

Description

Technical Field

[0001] This utility model relates to the field of premixing device technology, specifically to a premixing device for automotive interior surface treatment agents. Background Technology

[0002] With the rapid development of the automotive industry, consumers are increasingly demanding higher quality, environmental protection, and functionality from automotive interiors. The performance of automotive interior surface treatment agents directly affects the texture, durability, and compliance with environmental standards of the interior. In the production process of automotive interior surface treatment agents, the premixing stage is a key step in the preparation process, and its mixing effect plays a decisive role in the final performance of the treatment agent. Automotive interior surface treatment agents are usually composed of a variety of solid additives and liquid base materials. These raw materials have strict requirements on contact time, mixing rate, and mixing environment during the mixing process. Therefore, an efficient and stable premixing device has become the core equipment to ensure product quality.

[0003] Currently, most common automotive interior surface treatment agent premixing devices on the market use a single mixing chamber, directly and simultaneously adding solid and liquid raw materials for mixing. However, because solid raw materials disperse slowly in liquids, they are prone to local agglomeration, forming lumps, resulting in uneven mixing and reduced solid-liquid mixing efficiency. In addition, some solid and liquid raw materials come into contact with each other too early, and chemical reactions occur before the set process conditions are met, leading to the decomposition or deactivation of effective components. Furthermore, if a large amount of solid and liquid raw materials are added at once during the mixing process, it may cause dangerous situations such as sudden temperature rise and boiling over, posing significant safety hazards. Therefore, a premixing device for automotive interior surface treatment agents is needed to solve the problems existing in the current technology. Utility Model Content

[0004] The purpose of this invention is to provide a premixing device for automotive interior surface treatment agents to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a premixing device for automotive interior surface treatment agents, comprising a mixing cylinder, a stirring mechanism rotatably connected inside the mixing cylinder, and a discharge mechanism located within the stirring mechanism in the inner cavity of the mixing cylinder. The discharge mechanism includes a separating plate, a lifting rod, and a spring-loaded opening and closing assembly. The separating plate is fixed to the inner wall of the mixing cylinder, the lifting rod is positioned above the spring-loaded opening and closing assembly, and a discharge port is provided on the upper end face of the separating plate. The spring-loaded opening and closing assembly is rotatably connected to the discharge port of the separating plate.

[0006] Preferably, the elastic opening and closing assembly includes a flip-blocking plate, and a guide shaft is horizontally fixed between the inner walls of the partition plate, with the flip-blocking plate rotatably sleeved on the outside of the guide shaft.

[0007] Preferably, a torsion spring is sleeved on the outside of the guide shaft, one end of the torsion spring is fixed to the end face of the flip-blocking plate, and the other end of the torsion spring is fixed to the end plate of the guide shaft.

[0008] Preferably, a lifting ring seat is fixed to the upper end of the lifting rod, and a lifting slider is fixed to the side surface of the lifting ring seat. The lifting slider is slidably connected to the inner wall of the mixing cylinder.

[0009] Preferably, the lifting slider is internally connected to a locking stud to prevent detachment, and a locking knob is threadedly connected to the portion of the locking stud extending out of the upper end face of the mixing cylinder, and the locking knob is fixed to the upper end face of the mixing cylinder.

[0010] Preferably, the stirring mechanism includes a stirring rod, an upper stirring blade, and a lower stirring blade. A support frame is fixed to the upper end face of the mixing cylinder. The stirring rod is rotatably connected to the support frame. The upper stirring blade and the lower stirring blade are both disposed on the side surface of the stirring rod. The lower stirring blade is disposed below the upper stirring blade. A stirring motor is fixed to the upper end face of the support frame. The upper end of the stirring rod is fixed to the output shaft of the stirring motor. A liquid inlet pipe communicating with the mixing chamber is fixed to the side surface of the mixing cylinder.

[0011] This utility model provides a premixing device for automotive interior surface treatment agents, which has the following advantages compared with the prior art:

[0012] The material feeding mechanism and the partition plate divide the mixing cylinder working chamber into two premixing chambers, enabling independent premixing of solid and liquid raw materials. This effectively prevents some solid and liquid raw materials from coming into direct contact before reaching the set process conditions, thus preventing chemical reactions caused by premature contact and avoiding decomposition or inactivation of active ingredients. This ensures the stability of the premixing effect and the performance of the treatment agent. This premixing design allows solid raw materials to be initially dispersed through a dry mixing process, avoiding the formation of lumps due to local agglomeration when directly added to the liquid. This effectively reduces the possibility of material agglomeration leading to lower solid-liquid mixing efficiency, laying a good foundation for subsequent solid-liquid mixing and thereby improving the overall mixing efficiency.

[0013] With its elastic opening and closing components and lifting levers, the system enables phased and adjustable feeding. When premixed solid raw materials are added to the liquid raw material premixing chamber, the opening and closing degree of the flip-blocking plate at the discharge port is controlled to prevent chemical reactions from occurring during the one-time mixing of solid and liquid raw materials, which could lead to dangerous situations such as sudden temperature rise or boiling. This ensures the safety and controllability of the mixing process. The isolated premixing method also allows for individual adjustment of the amount of solid or liquid components before overall mixing, making it particularly suitable for multi-variety, small-batch production scenarios. It can flexibly respond to different production needs and improve the flexibility and adaptability of production. Attached Figure Description

[0014] Figure 1 This is a three-dimensional view of the overall structure of this utility model;

[0015] Figure 2 This is a three-dimensional cross-sectional view of the mixing cylinder of this utility model;

[0016] Figure 3 This is a perspective view of the lifting ring seat structure of this utility model;

[0017] Figure 4 This is a three-dimensional cross-sectional view of the partition tray of this utility model.

[0018] In the diagram: 1. Mixing cylinder; 2. Liquid inlet pipe; 3. Stirring mechanism; 4. Stirring rod; 5. Upper stirring blade; 6. Lower stirring blade; 7. Support frame; 8. Stirring motor; 9. Discharge mechanism; 10. Dividing tray; 11. Lifting ring seat; 12. Lifting stop rod; 13. Spring opening and closing assembly; 14. Flipping sealing plate; 15. Guide shaft; 16. Torsion spring; 17. Discharge port; 18. Lifting slider; 19. Locking stud; 20. Locking knob. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1-4 This utility model provides a premixing device for automotive interior surface treatment agents, including a mixing cylinder 1. The mixing cylinder 1 provides space for premixing raw materials and is internally divided into upper and lower premixing chambers by a partition plate 10, which are used to store and premix solid and liquid raw materials respectively. A stirring mechanism 3 is rotatably connected inside the mixing cylinder 1. A material discharge mechanism 9 is arranged in the inner cavity of the mixing cylinder 1, located at the stirring mechanism 3. The material discharge mechanism 9 includes a partition plate 10, a lifting rod 12, and a spring-loaded opening and closing assembly 13. Fixed to the inner wall of the mixing cylinder 1, the lifting rod 12 is set above the elastic opening and closing assembly 13. The upper end face of the dividing plate 10 is provided with a discharge port 17. The elastic opening and closing assembly 13 is rotatably connected to the discharge port 17 of the dividing plate 10. The dividing plate 10 divides the inner cavity of the mixing cylinder 1 into upper and lower layers. The upper layer stores solid raw materials and performs dry mixing, while the lower layer stores liquid raw materials and ultimately achieves solid-liquid mixing. The discharge port 17 is opened to control the timing and rate of solid raw material feeding through the elastic opening and closing assembly 13.

[0021] Further as Figure 1 , Figure 2 and Figure 3 As shown, it is worth noting that the elastic opening and closing assembly 13 includes a flipping sealing plate 14, and a guide shaft 15 is horizontally fixed between the inner walls of the partition plate 10. The flipping sealing plate 14 is rotatably sleeved on the outside of the guide shaft 15. A torsion spring 16 is sleeved on the outside of the guide shaft 15. One end of the torsion spring 16 is fixed on the end face of the flipping sealing plate 14, and the other end of the torsion spring 16 is fixed on the end plate of the guide shaft 15. The flipping sealing plate 14 opens and closes the discharge port by flipping action to control the feeding of solid raw materials.

[0022] Further as Figure 1 , Figure 2 and Figure 4 As shown, it is worth noting that a lifting ring seat 11 is fixed to the upper end of the lifting rod 12, and a lifting slider 18 is fixed to the side surface of the lifting ring seat 11. The lifting slider 18 is slidably connected to the inner wall of the mixing cylinder 1. A locking stud 19 is rotatably connected inside the lifting slider 18 to prevent it from detaching. A locking knob 20 is threadedly connected to the part of the locking stud 19 that extends out of the upper end face of the mixing cylinder 1. The locking knob 20 is fixed to the upper end face of the mixing cylinder 1.

[0023] Further as Figure 1 As shown, it is worth noting that the stirring mechanism 3 includes a stirring rod 4, an upper stirring blade 5, and a lower stirring blade 6. The upper stirring blade 5 is located in the premixing chamber above the partition plate 10 and is used to dry mix solid raw materials. It achieves preliminary dispersion by rotation to avoid clumping. The lower stirring blade 6 is located in the premixing chamber below the partition plate 10. When solid raw materials are added through the discharge port 17, they are mixed with liquid raw materials and uniformly dispersed by stirring. A support frame 7 is fixed to the upper end face of the mixing cylinder 1. The stirring rod 4 is rotatably connected to the support frame 7. The upper stirring blade 5 and the lower stirring blade 6 are both set on the side surface of the stirring rod 4. The lower stirring blade 6 is set below the upper stirring blade 5. A stirring motor 8 is fixed to the upper end face of the support frame 7. The upper end of the stirring rod 4 is fixed to the output shaft of the stirring motor 8. A liquid inlet pipe 2 connecting the mixing chamber is fixed to the side surface of the mixing cylinder 1.

[0024] This solution has the following working process: Before use, solid raw materials are added from the upper port of mixing cylinder 1, while liquid raw materials are added from the liquid inlet pipe 2. Since the partition plate 10 fixed on the inner wall of mixing cylinder 1 divides the working chamber into two premixing chambers, raw materials of different forms can be premixed independently. This prevents some solid raw materials from directly contacting liquid raw materials before reaching the set process conditions, which could cause a chemical reaction and lead to the decomposition or deactivation of effective components. In addition, this method allows solid raw materials to be initially dispersed through dry mixing, avoiding the formation of lumps due to local agglomeration when directly added to the liquid, thereby reducing the possibility of material agglomeration leading to a decrease in solid-liquid mixing efficiency.

[0025] When the premixed solid raw materials need to be added to the liquid raw material premixing chamber in the mixing cylinder 1, the locking screw 19 is rotated along the locking knob 20, which drives the locking screw 19 to rotate and adjust inside the lifting slider 18. This screwing in the locking screw 19 can lower the lifting ring seat 11, so that the lifting rod 12 can overcome the torque of the torsion spring 16 and apply a squeezing force to the flipping sealing plate 14. The flipping sealing plate 14 flips downward inside the partition plate 10, which can control the opening and closing degree of the discharge port 17. This can realize staged and adjustable rate feeding, thereby avoiding chemical reaction caused by one-time solid-liquid raw material mixing, which can lead to a sudden temperature rise or boiling. In addition, isolated premixing allows the amount of solid or liquid components to be adjusted separately before mixing, which is especially suitable for multi-variety, small-batch production scenarios.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Although embodiments of this utility model have been shown and described, this does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model. Regarding the embodiments of this utility model, those skilled in the art will understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. An automobile interior surface treatment agent premixing device comprising a mixing cylinder (1), characterized in that: The mixing cylinder (1) is rotatably connected to a stirring mechanism (3). A material discharge mechanism (9) is provided in the inner cavity of the mixing cylinder (1) and located in the stirring mechanism (3). The material discharge mechanism (9) includes a partition plate (10), a lifting rod (12), and a spring-loaded opening and closing assembly (13). The partition plate (10) is fixed on the inner wall of the mixing cylinder (1). The lifting rod (12) is located above the spring-loaded opening and closing assembly (13). A material discharge port (17) is opened on the upper end face of the partition plate (10). The spring-loaded opening and closing assembly (13) is rotatably connected to the material discharge port (17) of the partition plate (10).

2. The interior surface treatment agent premixing device for an automobile according to claim 1, characterized by: The elastic opening and closing assembly (13) includes a flip-blocking plate (14), and a guide shaft (15) is horizontally fixed between the inner walls of the partition plate (10). The flip-blocking plate (14) is rotatably sleeved on the outside of the guide shaft (15).

3. The interior surface treatment agent premixing device for an automobile according to claim 2, characterized by: A torsion spring (16) is sleeved on the outside of the guide shaft (15). One end of the torsion spring (16) is fixed on the end face of the flip-blocking plate (14), and the other end of the torsion spring (16) is fixed on the end plate of the guide shaft (15).

4. The interior surface treatment agent premixing device for an automobile according to claim 1, characterized by: The upper end of the lifting rod (12) is fixed with a lifting ring seat (11), and the side surface of the lifting ring seat (11) is fixed with a lifting slider (18), which is slidably connected to the inner wall of the mixing cylinder (1).

5. The interior surface treatment agent premixing device for an automobile according to claim 4, characterized by: The lifting slider (18) is internally connected to a locking stud (19) for anti-detachment rotation. The locking stud (19) is threadedly connected to a locking knob (20) at the part extending out of the upper end face of the mixing cylinder (1). The locking knob (20) is fixed to the upper end face of the mixing cylinder (1).

6. The interior surface treatment agent premixing device for an automobile according to claim 1, characterized by: The stirring mechanism (3) includes a stirring rod (4), an upper stirring blade (5) and a lower stirring blade (6). A support frame (7) is fixed on the upper end face of the mixing cylinder (1). The stirring rod (4) is rotatably connected to the support frame (7). The upper stirring blade (5) and the lower stirring blade (6) are both arranged on the side surface of the stirring rod (4). The lower stirring blade (6) is arranged below the upper stirring blade (5). A stirring motor (8) is fixed on the upper end face of the support frame (7). The upper end of the stirring rod (4) is fixed on the output shaft of the stirring motor (8). A liquid inlet pipe (2) connecting the mixing chamber is fixed on the side surface of the mixing cylinder (1).

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