Raw material mixing device for polyurethane foam dressing production
By introducing mixing and filtering components into the polyurethane foam production unit, the problems of low mixing efficiency and impurity adhesion have been solved, achieving more efficient raw material mixing and impurity removal, and improving the quality of foam dressings.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-03-31
AI Technical Summary
Existing mixing devices for polyurethane flexible foam production have low mixing efficiency and lack filtration structures, resulting in the adhesion of impurity particles in the raw solution, which affects the quality of the foam dressing.
A device comprising a mixing component and a filtering component was designed. The mixing component expands the mixing area through the combined movement of a stirring motor, a transmission rod, and a stirring rod. The filtering component removes impurities by driving a filter frame with an electric push rod.
This improved the uniformity and purity of raw material mixing, thus enhancing the processing quality of polyurethane foam dressings.
Smart Images
Figure CN224060285U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of polyurethane foam dressing production technology, specifically to a raw material mixing device for polyurethane foam dressing production. Background Technology
[0002] Flexible polyurethane foam, also known as polyurethane flexible foam, refers to a type of flexible polyurethane foam with a certain degree of elasticity. It is the most widely used polyurethane product. The main products include high-resilience foam, block sponge, slow-resilience foam, self-skinning foam, and semi-rigid energy-absorbing foam. The cell structure of polyurethane flexible foam is mostly open-cell. In the production process of polyurethane flexible foam, it is usually necessary to mix the raw materials required for the production process.
[0003] Currently, the mixing equipment used in the production of polyurethane flexible foam is inefficient and mostly lacks filtration structure. As a result, many impurities and particles tend to adhere to the inside of the raw solution after mixing, which reduces the purity of the raw solution and affects the quality of the polyurethane foam dressing. Utility Model Content
[0004] In view of the problems existing in the prior art, the purpose of this utility model is to provide a raw material mixing device for the production of polyurethane foam dressings, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a raw material mixing device for polyurethane foam dressing production, comprising a mixing box, an L-shaped plate fixedly connected to the rear end of the top of the mixing box, a mixing component provided in the inner cavity of the mixing box, a filter component provided at the bottom of the inner cavity of the mixing box, inclined plates fixedly connected to both sides of the inner cavity of the mixing box, a discharge pipe connected to the bottom of the inclined plates, a discharge valve provided on the surface of the discharge pipe, and supports fixedly connected to all four sides of the bottom of the mixing box.
[0006] By adopting the above technical solution and setting up a mixing component, the polyurethane foam raw materials in the mixing box can be stirred and mixed. The first electric push rod can drive the stirring motor, transmission rod and stirring rod to move up and down in the mixing box during the mixing process, thereby expanding the mixing area and improving the mixing effect. The filter component can filter the mixed polyurethane foam raw liquid and remove impurities, thereby improving the quality of polyurethane foam in the later processing and production, and thus improving the processing quality of polyurethane foam dressings.
[0007] Preferably, the mixing assembly includes a movable plate, and a first electric push rod is embedded in the top of the inner cavity of the L-shaped plate. The output shaft of the first electric push rod is fixedly connected to the movable plate. A stirring motor is fixedly connected to both sides of the bottom of the movable plate. A transmission rod is fixedly connected to the output shaft of the stirring motor. The bottom of the transmission rod passes through the mixing box and a stirring rod is fixedly connected to both sides.
[0008] By adopting the above technical solution, the polyurethane foam raw materials in the mixing box can be stirred and mixed. The first electric push rod can drive the stirring motor, transmission rod and stirring rod to move up and down in the mixing box during the stirring and mixing process, thereby expanding the stirring area and improving the stirring effect.
[0009] Preferably, the filter assembly includes a filter frame, and a second electric push rod is embedded on the right side of the mixing chamber cavity, with the telescopic end of the second electric push rod fixedly connected to the filter frame.
[0010] By adopting the above technical solution, the raw liquid of the mixed polyurethane foam can be filtered to remove impurities, thereby improving the quality of polyurethane foam in subsequent processing and production, and thus improving the processing quality of polyurethane foam dressings.
[0011] Preferably, a third electric push rod is embedded on both sides of the top of the mixing chamber, and a square scraper frame is fixedly connected to the telescopic end of the third electric push rod.
[0012] By adopting the above technical solution, the polyurethane foam concentrate adhering to the inner wall of the mixing tank can be clamped and scraped off, avoiding waste.
[0013] Preferably, sliding holes are provided at both the front and rear positions on the left side of the mixing chamber, and sliding rods for use with the sliding holes are fixedly connected at both the front and rear positions on the left side of the filter frame.
[0014] By adopting the above technical solution, the stability of the filter frame when the second electric push rod moves left and right can be increased.
[0015] Preferably, the surface of the mixing box is provided with a slag removal door, and the front end of the top of the mixing box is connected to a feed pipe.
[0016] By adopting the above technical solution, users can easily remove the filtered impurities from inside the filter frame.
[0017] Preferably, a guide plate is provided at the bottom of the mixing chamber.
[0018] By adopting the above technical solution, it is easier to guide the filtered original liquid.
[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0020] This invention, by incorporating a mixing component, enables the stirring and mixing of polyurethane foam raw materials within a mixing chamber. The first electric push rod drives the stirring motor, transmission rod, and stirring rod to move up and down within the mixing chamber during stirring, thereby expanding the stirring area and improving the stirring effect. The filtration component filters the mixed polyurethane foam concentrate, removing impurities and improving the quality of polyurethane foam during subsequent processing, thus enhancing the processing quality of polyurethane foam dressings. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the structure of this utility model;
[0022] Figure 2 This is a cross-sectional view of the structure of this utility model;
[0023] Figure 3 The structure of this utility model Figure 2 A magnified view of a section at point A in the middle;
[0024] Figure 4 This is a perspective view of the third electric push rod and the square scraper frame in the structure of this utility model.
[0025] In the diagram: 1. Mixing box; 2. L-shaped plate; 3. Mixing assembly; 301. Movable plate; 302. First electric push rod; 303. Stirring motor; 304. Transmission rod; 305. Stirring rod; 4. Filter assembly; 401. Filter frame; 402. Second electric push rod; 5. Inclined plate; 6. Feed pipe; 7. Feed valve; 8. Support; 9. Third electric push rod; 10. Square scraper frame; 11. Sliding hole; 12. Sliding rod; 13. Slag removal door; 14. Feed pipe; 15. Guide plate. Detailed Implementation
[0026] 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.
[0027] Example 1:
[0028] Reference Figure 1-4A raw material mixing device for producing polyurethane foam dressings includes a mixing chamber 1. An L-shaped plate 2 is fixedly connected to the rear end of the top of the mixing chamber 1. A mixing component 3 is provided inside the mixing chamber 1. The mixing component 3 includes a movable plate 301. A first electric push rod 302 is embedded in the top of the inner cavity of the L-shaped plate 2. The output shaft of the first electric push rod 302 is fixedly connected to the movable plate 301. A stirring motor 303 is fixedly connected to both sides of the bottom of the movable plate 301. A transmission rod 304 is fixedly connected to the output shaft of the stirring motor 303. The bottom of the transmission rod 304 penetrates the mixing chamber 1 and a stirring rod 305 is fixedly connected to both sides. This device can stir and mix the polyurethane foam raw materials in the mixing chamber 1. The first electric push rod 302 can drive the stirring motor 303 and the transmission rod 304. When mixing, the stirring rod 305 moves up and down inside the mixing box 1, thereby expanding the mixing area and improving the mixing effect. A filter assembly 4 is provided at the bottom of the inner cavity of the mixing box 1. The filter assembly 4 includes a filter frame 401. A second electric push rod 402 is embedded on the right side of the inner cavity of the mixing box 1. The telescopic end of the second electric push rod 402 is fixedly connected to the filter frame 401, which can filter the raw polyurethane foam after mixing and remove impurities from its interior, thereby improving the quality of polyurethane foam in the later processing and production, and thus improving the processing quality of polyurethane foam dressing. Inclined plates 5 are fixedly connected to both sides of the inner cavity of the mixing box 1. The bottom of the inclined plate 5 is connected to a discharge pipe 6. A discharge valve 7 is provided on the surface of the discharge pipe 6. Supports 8 are fixedly connected to the bottom of the mixing box 1.
[0029] Example 2:
[0030] Reference Figure 2 , Figure 3 and Figure 4 Both sides of the top of the mixing chamber 1 are equipped with a third electric push rod 9. The telescopic end of the third electric push rod 9 is fixedly connected to a square scraper frame 10, which can clamp and scrape off the polyurethane foam raw liquid adhering to the inner wall of the mixing chamber 1 to avoid waste. Sliding holes 11 are opened at the front and rear positions of the left side of the mixing chamber 1. Sliding rods 12 that are used in conjunction with the sliding holes 11 are fixedly connected at the front and rear positions of the left side of the filter frame 401, which can increase the stability when the second electric push rod 402 pushes the filter frame 401 to move left and right. The surface of the mixing chamber 1 is provided with a slag removal door 13. The front end of the top of the mixing chamber 1 is connected to a feed pipe 14, which can facilitate the user to remove the impurities filtered inside the filter frame 401. The bottom of the mixing chamber 1 is provided with a guide plate 15, which can facilitate the flow of the raw liquid after filtration.
[0031] The working principle is as follows:
[0032] In use, two stirring motors 303 are started simultaneously to drive the transmission rod 304 and stirring rod 305 to rotate, which can stir and mix the polyurethane foam raw materials in the mixing box 1. The first electric push rod 302 can drive the movable plate 301 to move up and down, which in turn can drive the stirring motors 303, transmission rod 304 and stirring rod 305 to move up and down in the mixing box 1 during stirring and mixing, thereby expanding the stirring area, improving the stirring effect, and making the polyurethane foam raw liquid more evenly mixed. After mixing, the discharge valve 7 is opened and the mixture is discharged through the discharge pipe 6. The mixed polyurethane foam concentrate is discharged into the filter frame 401 for filtration. At the same time, the second electric push rod 402 can push the filter frame 401 to move left and right inside the mixing box 1, which can speed up the screening efficiency of the filter frame 401 and quickly remove impurities inside, thereby improving the quality of polyurethane foam in the later processing and production, and thus improving the processing quality of polyurethane foam dressing. Finally, the two third electric push rods 9 can be activated to push the square scraper frame 10 downward, which can clamp and scrape off the polyurethane foam concentrate adhering to the inner wall of the mixing box 1 to avoid waste.
[0033] In summary, this raw material mixing device for polyurethane foam dressing production, by setting up the mixing component 3, can stir and mix the polyurethane foam raw materials in the mixing box 1. The first electric push rod 302 can drive the stirring motor 303, the transmission rod 304 and the stirring rod 305 to move up and down in the mixing box 1 during stirring and mixing, thereby expanding the stirring area and improving the stirring effect. The filter component 4 can filter the mixed polyurethane foam raw liquid and remove its internal impurities, thereby improving the quality of polyurethane foam in the later processing and production, and thus improving the processing quality of polyurethane foam dressing.
[0034] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Since this application is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail in this application.
[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A raw material mixing device for polyurethane foam dressing production, comprising a mixing tank (1), characterized in that: The rear end of the top of the mixing box (1) is fixedly connected with an L-shaped plate (2), the inner cavity of the mixing box (1) is provided with a mixing assembly (3), the bottom of the inner cavity of the mixing box (1) is provided with a filtering assembly (4), both sides of the inner cavity of the mixing box (1) are fixedly connected with an inclined plate (5), the bottom of the inclined plate (5) is communicated with a discharging pipe (6), the surface of the discharging pipe (6) is provided with a discharging valve (7), and the periphery of the bottom of the mixing box (1) is fixedly connected with a support (8).
2. A raw material mixing device for polyurethane foam dressing production according to claim 1, characterized in that: The mixing assembly (3) comprises a movable plate (301), a first electric push rod (302) is embedded in the top of the inner cavity of the L-shaped plate (2), the output shaft of the first electric push rod (302) is fixedly connected with the movable plate (301), both sides of the bottom of the movable plate (301) are fixedly connected with a stirring motor (303), the output shaft of the stirring motor (303) is fixedly connected with a transmission rod (304), the bottom of the transmission rod (304) penetrates through the mixing box (1) and both sides of the transmission rod (304) are fixedly connected with a stirring rod (305).
3. A raw material mixing device for polyurethane foam dressing production according to claim 1, characterized in that: The filtering assembly (4) comprises a filtering frame (401), a second electric push rod (402) is embedded in the right side of the inner cavity of the mixing box (1), and the telescopic end of the second electric push rod (402) is fixedly connected with the filtering frame (401).
4. The raw material mixing device for polyurethane foam dressing production according to claim 1, characterized in that: Third electric push rods (9) are embedded in both sides of the top of the inner cavity of the mixing box (1), and the telescopic end of the third electric push rod (9) is fixedly connected with a square scraping frame (10).
5. A raw material mixing device for polyurethane foam dressing production according to claim 3, characterized in that: Front and rear positions of the left side of the inner cavity of the mixing box (1) are provided with sliding holes (11), and the front and rear positions of the left side of the filtering frame (401) are fixedly connected with sliding rods (12) matched with the sliding holes (11).
6. A raw material mixing device for polyurethane foam dressing production according to claim 1, characterized in that: The surface of the mixing box (1) is provided with a slag taking door (13), and the top of the inner cavity of the mixing box (1) is communicated with a feeding pipe (14).
7. A raw material mixing device for polyurethane foam dressing production according to claim 1, characterized in that: The bottom of the inner cavity of the mixing box (1) is provided with a guide plate (15).