Feeding equipment for preparing polyurethane

The switching and flow rate of the feeding equipment are controlled by a three-way plate and a rotating assembly. Combined with a cleaning assembly, the metering and cleaning problems of the feeding equipment are solved, thereby improving the stability and efficiency of polyurethane production.

CN223615822UActive Publication Date: 2025-12-02HEFEI ZHONGKE ZHIYUAN BIOTECHNOLOGY CO LTD
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Patent Information

Application Number
CN202423082765.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-13
Publication Date
2025-12-02
Estimated Expiration
2034-12-13

AI Technical Summary

Technical Problem

Existing feeding equipment for polyurethane preparation is difficult to control the on/off switch and flow rate of the feed, resulting in excessive or insufficient raw materials, which affects the quality of the polymerization reaction and the performance of the product.

Method used

The feeding switch and flow rate are controlled by a three-way plate and a rotating assembly. Combined with a cleaning assembly, accurate metering and equipment cleaning are achieved. The feed pipe is switched on and off by the rotating assemblies of three-way plate one and three-way plate two. Cleaning is performed using a water suction pipe and a water spray pipe.

Benefits of technology

It enables precise measurement of raw materials, ensuring consistency in the production process and product stability, while also solving the problem of difficult equipment cleaning, thus improving production efficiency and product quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of feeding equipment, and discloses feeding equipment for preparing polyurethane, which comprises a three-way plate I, a sealing ring is attached to the lower surface of the three-way plate I, a three-way plate II is attached to the lower surface of the sealing ring, a rotating component is arranged on the outer wall of the three-way plate II, the rotating component comprises a discharging pipe, and a feeding pipe is arranged on the discharging pipe. The inner wall of the discharging pipe is fixedly connected to the outer wall of the second three-way plate, the outer wall of the discharging pipe is rotationally connected with a sliding sleeve, a sliding block is fixedly connected into the sliding sleeve, one end of the sliding block is fixedly connected to the outer wall of the first three-way plate, and a measuring cylinder is fixedly connected to the upper surface of the discharging pipe. According to the feeding device, the effect of accurately metering various raw materials is achieved under the action of the first three-way plate and the second three-way plate, so that the production effect is more stable, and the effect of timely cleaning the feeding device after polyurethane is prepared is achieved under the action of the water pumping pipe and the water spraying pipe.
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Description

Technical Field

[0001] This utility model relates to the field of feeding equipment technology, and in particular to a feeding equipment for preparing polyurethane. Background Technology

[0002] The feeding equipment for polyurethane preparation is a specialized device used to accurately feed various raw materials (such as isocyanates, polyethers or polyester polyols, catalysts, and additives) required in the polyurethane synthesis process according to a certain proportion, method, and speed. This equipment plays a crucial role in the entire polyurethane production process. Manual feeding is not only time-consuming and labor-intensive but also prone to errors. Using feeding equipment can achieve automated and continuous operation, greatly improving production efficiency. Modern feeding equipment can flexibly adjust the formula and feeding process according to changes in product demand, facilitating the production of various polyurethane materials. It is mainly used in the chemical industry, automobile manufacturing, and construction industry.

[0003] Existing polyurethane preparation equipment typically achieves its effects by using storage and feeding structures, unloading structures, and various forms of stirring motion to ensure thorough mixing of raw materials in the mixing tank and increase the effective contact area.

[0004] However, existing polyurethane feeding equipment is difficult to control during the feeding process, which can easily lead to an excess or deficiency of certain raw materials, directly affecting the quality of the polymerization reaction and ultimately causing the product performance to fail to meet standards. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a feeding device for preparing polyurethane, which aims to improve the problem that existing feeding devices for preparing polyurethane are difficult to control during the feeding process, which can easily lead to an excess or deficiency of certain raw materials, directly affecting the quality of the polymerization reaction and ultimately causing the product performance to fail to meet standards.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a feeding device for preparing polyurethane, comprising a three-way plate one, a sealing ring attached to the lower surface of the three-way plate, a three-way plate two attached to the lower surface of the sealing ring, and a rotating assembly provided on the outer wall of the three-way plate two;

[0007] The rotating assembly includes a feeding tube, the inner wall of which is fixedly connected to the outer wall of the three-way plate, a sliding sleeve rotatably connected to the outer wall of the feeding tube, a slider fixedly connected inside the sliding sleeve, one end of the slider fixedly connected to the outer wall of the three-way plate, and a measuring cylinder fixedly connected to the upper surface of the feeding tube.

[0008] Furthermore, a feeding box is fixedly connected to one end of the feeding pipe, a guardrail is fixedly connected to the outer wall of the feeding box, a first fixing plate is fixedly connected to the upper surface of the guardrail, and a cleaning component is provided on the upper surface of the first fixing plate.

[0009] Furthermore, the cleaning component includes a water tank, the lower surface of which is fixedly connected to the upper surface of a first fixed plate, a second fixed plate fixedly connected to the upper surface of the water tank, a water pump fixedly connected to the upper surface of the second fixed plate, a water pump input end fixedly connected to a water suction pipe, and a water pump output end fixedly connected to a water spray pipe.

[0010] Furthermore, a drive motor is fixedly connected to the upper surface of the feeding box, and a stirring rod is rotatably connected to one end of the drive motor. A stirring blade is fixedly connected to the outer wall of the stirring rod.

[0011] Furthermore, the outer wall of the three-way plate is rotatably connected to the inside of the measuring cylinder, and the three-way plate is used to control the opening and closing of the measuring cylinder.

[0012] Furthermore, the outer wall of the sealing ring is slidably connected to the inner wall of the feed pipe, and the sealing ring is used to seal the feed pipe.

[0013] Furthermore, the two ends of the stirring rod are rotatably connected inside the feeding box, and the stirring rod is used to drive the stirring blades to stir.

[0014] Furthermore, a support leg is fixedly connected to the outer wall of the first fixing plate, and the support leg is used to support the feeding box.

[0015] This utility model has the following beneficial effects:

[0016] 1. In this utility model, the problem of difficulty in controlling the feeding switch and flow rate during the feeding process of existing polyurethane feeding equipment is solved by the action of the three-way plate one and the three-way plate two. It realizes the accurate metering of various raw materials, ensures the consistency of the formula in each production process, and thus improves the stability and consistency of the final product.

[0017] 2. In this utility model, the use of a water pump and a water spray pipe solves the problem that if the feeding equipment is not thoroughly cleaned in time after use, the residual raw materials will solidify and clump inside the equipment, increasing the difficulty of cleaning. This achieves the effect of timely cleaning of the feeding equipment. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of a feeding device for preparing polyurethane according to the present invention;

[0019] Figure 2This is a schematic diagram of the drive motor part of a feeding device for preparing polyurethane according to the present invention.

[0020] Figure 3 This is a schematic diagram of a portion of the three-way plate structure of a feeding device for preparing polyurethane according to this utility model;

[0021] Figure 4 This is a schematic diagram of the two-part structure of a three-way plate in a feeding device for preparing polyurethane according to this utility model.

[0022] Legend:

[0023] 1. Support leg; 2. Feeding box; 3. Guardrail; 4. First fixing plate; 5. Feeding pipe; 6. Sliding sleeve; 7. Measuring cylinder; 8. Drive motor; 9. Stirring rod; 10. Stirring blade; 11. T-plate one; 12. Sealing ring; 13. T-plate two; 14. Sliding block; 15. Water tank; 16. Second fixing plate; 17. Water spray pipe; 18. Water suction pipe; 19. Water pump. Detailed Implementation

[0024] 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.

[0025] Reference Figures 1-4 This utility model provides an embodiment of a feeding device for preparing polyurethane, including a three-way plate 11. A sealing ring 12 is attached to the lower surface of the three-way plate 11 to seal between the three-way plate 11 and the three-way plate 2 13. The lower surface of the sealing ring 12 is attached to the three-way plate 2 13. A rotating assembly is provided on the outer wall of the three-way plate 2 13 to control the opening and closing of the feeding pipe 5. The rotating assembly includes the feeding pipe 5. The inner wall of the feeding pipe 5 is fixedly connected to the outer wall of the three-way plate 2 13. A sliding sleeve 6 is rotatably connected to the outer wall of the feeding pipe 5. A slider 14 is fixedly connected inside the sliding sleeve 6. The slider 14 drives the sliding sleeve 6 to rotate. One end of the slider 14 is fixedly connected to the outer wall of the three-way plate 11. A measuring cylinder 7 is fixedly connected to the upper surface of the feeding pipe 5 to observe the amount of raw material liquid.

[0026] Reference Figures 1-4One end of the feeding pipe 5 is fixedly connected to the feeding box 2. The outer wall of the feeding box 2 is fixedly connected to the guardrail 3. The upper surface of the guardrail 3 is fixedly connected to the first fixing plate 4. The upper surface of the first fixing plate 4 is provided with a cleaning component. The cleaning component is used to clean the feeding pipe 5. The cleaning component includes a water tank 15. The lower surface of the water tank 15 is fixedly connected to the upper surface of the first fixing plate 4. The upper surface of the water tank 15 is fixedly connected to the second fixing plate 16. The upper surface of the second fixing plate 16 is fixedly connected to the water pump 19. The input end of the water pump 19 is fixedly connected to the water suction pipe 18. The output end of the water pump 19 is fixedly connected to the water spray pipe 17. When the water pump 19 is working, the water suction pipe 18 draws water from the water tank 15 and sprays it out from the water spray pipe 17.

[0027] Reference Figures 1-4 A drive motor 8 is fixedly connected to the upper surface of the feeding box 2. A stirring rod 9 is rotatably connected to one end of the drive motor 8. A stirring blade 10 is fixedly connected to the outer wall of the stirring rod 9. The stirring rod 9 drives the stirring blade 10 to rotate and mix the raw materials in the feeding box 2. The outer wall of the three-way plate 11 is rotatably connected to the inside of the measuring cylinder 7. The three-way plate 11 is used to control the opening and closing of the measuring cylinder 7. The outer wall of the sealing ring 12 is slidably connected to the inner wall of the discharge pipe 5. The sealing ring 12 is used to seal the discharge pipe 5. The two ends of the stirring rod 9 are rotatably connected to the inside of the feeding box 2. The stirring rod 9 is used to drive the stirring blade 10 to stir. A support leg 1 is fixedly connected to the outer wall of the first fixed plate 4. The support leg 1 is used to support the feeding box 2.

[0028] Working principle: When the user needs to use the polyurethane feeding equipment, the raw materials are first poured into the two measuring cylinders 7 respectively. After the raw materials are poured into the measuring cylinders 7, the user pours the raw materials into the feeding pipe 5 according to the required amount. Initially, when the first fixed plate 4 is in the initial position, the feeding pipe 5 remains closed. The sliding slider 14 drives the sliding sleeve 6 to rotate, thereby driving the three-way plate 11 to rotate. When it rotates to a certain angle, the three-way plate 11 and the two-way plate 13 are in contact, so that the raw materials are fed along the holes inside the three-way plate 11 and the two-way plate 13. The material flows into the feed pipe 5, achieving the effect of controlling the flow rate of raw materials. After the feeding is completed, the slider 14 is moved to the initial position, thereby driving the three-way plate 11 to rotate, so that the holes inside the three-way plate 11 and the three-way plate 2 13 are staggered and fitted to form a closed state. After the feeding is completed, the drive motor 8 is started, and the stirring rod 9 drives the stirring blade 10 to rotate and stir, so that the raw materials are mixed more evenly. After the feeding is completed, the water pump 19 is started, and the staff can use the spray pipe 17 to spray the inside of the feed pipe 5, thereby achieving the effect of cleaning the feeding equipment.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A feeding device for preparing polyurethane, comprising a three-way plate (11), characterized in that: A sealing ring (12) is attached to the lower surface of the first three-way plate (11), and a second three-way plate (13) is attached to the lower surface of the sealing ring (12). A rotating assembly is provided on the outer wall of the second three-way plate (13). The rotating assembly includes a feeding tube (5), the inner wall of which is fixedly connected to the outer wall of the three-way plate (13), a sliding sleeve (6) is rotatably connected to the outer wall of the feeding tube (5), a slider (14) is fixedly connected inside the sliding sleeve (6), one end of the slider (14) is fixedly connected to the outer wall of the three-way plate (11), and a measuring cylinder (7) is fixedly connected to the upper surface of the feeding tube (5).

2. The feeding device for preparing polyurethane according to claim 1, characterized in that: One end of the feeding pipe (5) is fixedly connected to the feeding box (2), the outer wall of the feeding box (2) is fixedly connected to the guardrail (3), the upper surface of the guardrail (3) is fixedly connected to the first fixing plate (4), and the upper surface of the first fixing plate (4) is provided with a cleaning component.

3. The feeding device for preparing polyurethane according to claim 2, characterized in that: The cleaning assembly includes a water tank (15), the lower surface of which is fixedly connected to the upper surface of a first fixing plate (4), the upper surface of which is fixedly connected to a second fixing plate (16), the upper surface of which is fixedly connected to a water pump (19), the input end of which is fixedly connected to a water suction pipe (18), and the output end of which is fixedly connected to a water spray pipe (17).

4. The feeding device for preparing polyurethane according to claim 2, characterized in that: A drive motor (8) is fixedly connected to the upper surface of the feeding box (2). A stirring rod (9) is rotatably connected to one end of the drive motor (8). A stirring blade (10) is fixedly connected to the outer wall of the stirring rod (9).

5. The feeding device for preparing polyurethane according to claim 1, characterized in that: The outer wall of the three-way plate (11) is rotatably connected to the inside of the measuring cylinder (7), and the three-way plate (11) is used to control the opening and closing of the measuring cylinder (7).

6. The feeding device for preparing polyurethane according to claim 1, characterized in that: The outer wall of the sealing ring (12) is slidably connected to the inner wall of the feed pipe (5), and the sealing ring (12) is used to seal the feed pipe (5).

7. The feeding device for preparing polyurethane according to claim 4, characterized in that: The stirring rod (9) is rotatably connected at both ends to the inside of the feeding box (2), and the stirring rod (9) is used to drive the stirring blade (10) to stir.

8. The feeding device for preparing polyurethane according to claim 2, characterized in that: The outer wall of the first fixing plate (4) is fixedly connected with a support leg (1), which is used to support the feeding box (2).