Efficient centrifugal mixing device for polyurethane

Abstract

The utility model discloses an efficient polyurethane centrifugal mixing device which comprises a centrifugal mixing device body, an intelligent temperature control water bath assembly and an efficient mixing assembly, wherein the intelligent temperature control water bath assembly and the efficient mixing assembly are located in the centrifugal mixing device body; an inner groove is formed in the centrifugal mixing device body; the efficient mixing and stirring assembly comprises a first motor. The efficient mixing and stirring assembly has the beneficial effects that the problems that the stirring range of the existing stirring blade is limited, dead angles are easy to generate, the mixing and stirring are not uniform, certain bubbles are generated, more bubbles are difficult to discharge, and the preparation requirement of an efficient and high-quality polyurethane material cannot be met are solved by arranging the efficient mixing and stirring assembly; meanwhile, the first gear, the second gear and the driving wheel are arranged and are in transmission communication through the gears, the torque of the motor can be amplified, the motor has higher power, meanwhile, transmission of the three gears has the buffering and damping effects, and therefore noise is smaller than that of a common motor.

Description

Technical Field

[0001] This utility model relates to the field of polyurethane mixing, and in particular to a high-efficiency centrifugal mixing device for polyurethane. Background Technology

[0002] Polyurethane raw materials mainly include isocyanate, polyether polyol, graphite, and additives. When preparing polyurethane, the polyurethane raw materials need to be mixed to ensure that the components are evenly distributed, which requires the use of a high-efficiency centrifugal mixing device for polyurethane.

[0003] A polyurethane raw material preparation stirring device disclosed in Chinese Utility Model 2 (Announcement No.: CN219897922U) relates to the field of polyurethane raw material preparation and has the following beneficial effects: A fixed raw material for polyurethane preparation is placed in a grinder for grinding into powder. A built-in battery power supply is then supplied to the electric telescopic rod. The shortening of the electric telescopic rod, controlled by a controller, moves the base plate, opening the bottom of the grinder. This allows the powdered raw material to be added through a funnel into a mixing tank to mix with the liquid raw material. This eliminates the need for manual operation, greatly saving manpower. Furthermore, during the stirring process inside the mixing tank, an external power supply can be supplied to the motor. Turning on the motor drives the rotating shaft, which in turn rotates along the bearing, thus rotating the grinder and promoting the movement of the internal raw material, resulting in better mixing.

[0004] The aforementioned patent has been found to have at least the following problems: While the polyurethane raw material is stirred by the stirring blades inside the mixing tank and by the rotating shaft and grinder promoting the movement of the internal materials, in actual use, the limited stirring range of the stirring blades and the tendency to create dead zones lead to uneven mixing and the generation of air bubbles. These bubbles are difficult to remove, failing to meet the requirements for efficient and high-quality polyurethane material preparation. Therefore, a high-efficiency centrifugal mixing device for polyurethane is proposed. Utility Model Content

[0005] To address the issues of limited mixing range and the potential for dead zones caused by the stirring blades, resulting in uneven mixing and the generation of numerous air bubbles that are difficult to remove, thus failing to meet the requirements for high-efficiency and high-quality polyurethane material preparation, this invention provides a high-efficiency centrifugal mixing device for polyurethane.

[0006] This utility model provides a high-efficiency centrifugal mixing device for polyurethane, which adopts the following technical solution:

[0007] A high-efficiency polyurethane centrifugal mixing device includes a centrifugal mixing device body, and an intelligent temperature-controlled water bath component and a high-efficiency mixing component located inside the centrifugal mixing device body.

[0008] The centrifugal mixing device body has an internal groove.

[0009] The high-efficiency mixing component includes a first motor, which is fixedly installed at the bottom of the inner tank. The output end of the first motor is fixedly connected to a bottom connecting plate. A drive wheel is hinged to the top center of the bottom connecting plate. A second gear and a first gear are respectively meshed on the left and right sides of the drive wheel. The second gear and the first gear are pin-connected to the bottom connecting plate.

[0010] By adopting the above technical solution, this setting improves the problem that the existing stirring blades have a limited stirring range and are prone to dead zones, resulting in uneven mixing and the generation of a certain amount of bubbles. The large number of bubbles makes it difficult to remove them, which fails to meet the requirements for the preparation of high-efficiency and high-quality polyurethane materials.

[0011] Optionally, the top of the second gear and the first gear are pinned to a top connecting plate, and a second motor is fixedly installed on the bottom of both the left and right sides of the top connecting plate. The output ends of the two sets of second motors are fixedly connected to a rotating chassis.

[0012] By adopting the above technical solution, starting the first motor drives the bottom connecting plate and the drive wheel to rotate, which in turn drives the second gear, the first gear, and the top connecting plate to rotate.

[0013] Optionally, a mounting bracket is fixedly installed on the surface of the rotating chassis.

[0014] By adopting the above technical solution, the mixing cup is fixedly installed in the mounting frame, and the second motor is started to drive the rotating chassis and the mounting frame to rotate, which in turn drives the mixing cup to rotate.

[0015] Optionally, an internal gear ring is fixedly installed on the bottom inner wall of the inner groove, and the internal gear ring meshes with the second gear and the first gear respectively.

[0016] By adopting the above technical solution, the first gear, the second gear, and the drive wheel are connected through gear transmission, which can amplify the torque of the motor and make it more powerful. At the same time, the three gear transmissions have a buffering and shock absorption function, so the noise is lower than that of ordinary motors.

[0017] Optionally, the intelligent temperature-controlled water bath component includes a microcontroller, which is fixedly installed on the surface of the centrifugal mixing device body.

[0018] By adopting the above technical solution, the heating rod is activated to heat the water. When the water temperature reaches the set temperature range, the microcontroller controls the heating rod to turn off. When the water temperature is lower than the set temperature range, the microcontroller controls the heating rod to turn on.

[0019] Optionally, a heating rod and a temperature sensor are fixedly installed on the inner wall of the inner tank.

[0020] By adopting the above technical solution, this setup ensures that the inner tank is always at the most suitable temperature, avoiding the influence of ambient temperature on the mixing quality of polyurethane raw materials. This setup improves upon existing polyurethane preparation devices, which have low cost-effectiveness because water bathing and mixing of polyurethane are carried out in different chambers. At the same time, frequent contact between personnel and polyurethane preparation raw materials poses a greater risk of contamination and results in a heavy workload.

[0021] Optionally, an operation panel is fixedly installed on one side of the centrifugal mixing device body, and a protective cover is installed on the top of the centrifugal mixing device body via a hinge.

[0022] By adopting the above technical solution, the control panel is used to control the start and stop of the motor.

[0023] In summary, this utility model has the following beneficial effects:

[0024] 1. This utility model improves upon the limitations of existing mixing blades, which have a limited mixing range and are prone to dead zones, resulting in uneven mixing and the generation of air bubbles that are difficult to remove, thus failing to meet the requirements for high-efficiency and high-quality polyurethane material preparation. Furthermore, the first gear, second gear, and drive wheel are connected via gear transmission, amplifying the motor's torque and providing stronger power. The three gear transmissions also provide buffering and shock absorption, resulting in lower noise compared to conventional motors.

[0025] 2. This utility model uses an intelligent temperature-controlled water bath component to introduce an appropriate amount of water into the inner tank. Then, a heating rod is activated to heat the water. When the water reaches the set temperature range, the microcontroller controls the heating rod to turn off. When the water temperature falls below the set temperature range, the microcontroller controls the heating rod to turn on again. This design ensures that the inner tank is always at the most suitable temperature, preventing ambient temperature from affecting the mixing quality of the polyurethane raw materials. This design improves upon existing polyurethane preparation devices, which perform water bathing and mixing of polyurethane in different chambers, resulting in low cost-effectiveness. Furthermore, these devices involve frequent contact between personnel and the polyurethane preparation raw materials, posing a significant risk of contamination and requiring a heavy workload. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of the main view of this utility model.

[0027] Figure 2 This is a schematic diagram of the intelligent temperature-controlled water bath component of this utility model.

[0028] Figure 3 This is a schematic diagram of the internal structure of the centrifugal mixing device of this utility model.

[0029] Figure 4This is a schematic diagram of the structure of the drive wheel, the second gear, and the first gear of this utility model.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Centrifugal mixing device body; 2. Control panel; 3. Protective cover; 4. Intelligent temperature control water bath component; 401. Heating rod; 402. Temperature sensor; 403. Microcontroller; 5. High-efficiency mixing component; 501. Internal gear ring; 502. First gear; 503. Bottom connecting plate; 504. First motor; 505. Top connecting plate; 506. Second gear; 507. Second motor; 508. Rotating chassis; 509. Mounting bracket; 510. Drive wheel; 6. Inner tank. Detailed Implementation

[0032] The following is in conjunction with the appendix Figures 1-4 This application will be described in further detail.

[0033] Please refer to Figures 1-4 A high-efficiency polyurethane centrifugal mixing device includes a centrifugal mixing device body 1, an intelligent temperature-controlled water bath component 4 and a high-efficiency mixing component 5 located inside the centrifugal mixing device body 1. An inner groove 6 is opened inside the centrifugal mixing device body 1. An operation panel 2 is fixedly installed on one side of the centrifugal mixing device body 1. A protective cover 3 is installed on the top of the centrifugal mixing device body 1 through a hinge.

[0034] Reference Figure 3 and Figure 4 The high-efficiency mixing component 5 includes a first motor 504, which is fixedly installed at the bottom of the inner tank 6. The output end of the first motor 504 is fixedly connected to a bottom connecting plate 503. A drive wheel 510 is hinged to the top center of the bottom connecting plate 503. A second gear 506 and a first gear 502 are respectively meshed on the left and right sides of the drive wheel 510. The second gear 506 and the first gear 502 are pin-connected to the bottom connecting plate 503. A top connecting plate 505 is pin-connected to the top of the second gear 506 and the first gear 502. A second motor 507 is fixedly installed at the bottom of both sides of the top connecting plate 505. The output ends of the two sets of second motors 507 are fixedly connected to a rotating chassis 508. A mounting bracket 509 is fixedly installed on the surface of the rotating chassis 508. An internal gear ring 501 is fixedly installed on the bottom inner wall of the inner tank 6. The internal gear ring 501 is meshed with the second gear 506 and the first gear 502 respectively.

[0035] Reference Figure 2 and Figure 3 The intelligent temperature-controlled water bath component 4 includes a microcontroller 403, which is fixedly installed on the surface of the centrifugal mixing device body 1. A heating rod 401 and a temperature sensor 402 are fixedly installed on the inner wall of the inner tank 6.

[0036] The implementation principle of this utility model is as follows: When using this high-efficiency polyurethane centrifugal mixing device, through the high-efficiency mixing component 5, polyurethane raw materials to be mixed, such as isocyanate, polyether polyol, graphite, and additives, can be placed into the mixing cup. Then, the mixing cup is fixedly installed in the mounting frame 509. Starting the second motor 507 drives the rotating chassis 508 and the mounting frame 509 to rotate, which in turn drives the mixing cup to rotate. Starting the first motor 504 drives the bottom connecting plate 503 and the drive wheel 510 to rotate, which in turn drives the second gear 506, the first gear 502, and the top connecting plate 506 to rotate. Rotating plate 505 causes the mixing cup to revolve. During this rotation, the polyurethane raw materials inside the mixing cup, such as isocyanate, polyether polyol, graphite, and additives, initially expel larger air bubbles under the centrifugal force of the revolution. Then, the second motor 507 is turned off, and the first motor 504 is started. Under the centrifugal force of the revolution, the polyurethane raw materials inside the mixing cup, such as isocyanate, polyether polyol, graphite, and additives, concentrate the air bubbles at the farthest point of the mixing cup and remove smaller air bubbles until all air bubbles are removed. This secondary bubble removal is then complete, achieving efficient removal of submicron-level air bubbles. This design improves upon existing stirring blades, which have limited mixing range and are prone to dead zones, leading to uneven mixing and the generation of air bubbles that are difficult to remove, thus failing to meet the requirements for efficient and high-quality polyurethane material preparation. The newly designed first gear 502, second gear 506, and drive wheel 510 are interconnected via gear transmission, amplifying the motor's torque for stronger power. The three gear transmissions also provide buffering and shock absorption, resulting in lower noise compared to conventional motors. The intelligent temperature-controlled water bath component 4 introduces an appropriate amount of water into the inner tank 6, and then the heating rod 401 heats the water. When the water reaches the set temperature range, the microcontroller 403 controls the heating rod 401 to turn off; when the water temperature falls below the set temperature range, the microcontroller 403 controls the heating rod 401 to turn on. This design ensures that the inner tank 6 is always at the optimal temperature, preventing ambient temperature from affecting the mixing quality of the polyurethane raw materials. This design improves upon existing polyurethane preparation devices, which perform water bathing and mixing in different chambers, resulting in low cost-effectiveness, frequent contact between personnel and polyurethane raw materials, a high risk of contamination, and a heavy workload.

[0037] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A high-efficiency centrifugal mixing device for polyurethane, characterized in that, It includes a centrifugal mixing device body (1), and an intelligent temperature-controlled water bath component (4) and a high-efficiency mixing component (5) located inside the centrifugal mixing device body (1). The centrifugal mixing device body (1) has an inner groove (6) inside; The high-efficiency mixing component (5) includes a first motor (504), which is fixedly installed at the bottom of the inner tank (6). The output end of the first motor (504) is fixedly connected to a bottom connecting plate (503). A drive wheel (510) is hinged to the top center of the bottom connecting plate (503). A second gear (506) and a first gear (502) are respectively meshed on the left and right sides of the drive wheel (510). The second gear (506) and the first gear (502) are pin-connected to the bottom connecting plate (503).

2. The polyurethane high-efficiency centrifugal mixing device according to claim 1, characterized in that, The top of the second gear (506) and the first gear (502) are pinned to a top connecting plate (505). The bottom of the left and right sides of the top connecting plate (505) are fixedly installed with a second motor (507). The output ends of the two sets of second motors (507) are fixedly connected to a rotating chassis (508).

3. The high-efficiency polyurethane centrifugal mixing device according to claim 2, characterized in that, The rotating chassis (508) is fixedly mounted with a mounting bracket (509).

4. The high-efficiency centrifugal mixing device for polyurethane according to claim 1, characterized in that, An internal gear ring (501) is fixedly installed on the bottom inner wall of the inner groove (6), and the internal gear ring (501) is meshed with the second gear (506) and the first gear (502) respectively.

5. The high-efficiency centrifugal mixing device for polyurethane according to claim 1, characterized in that, The intelligent temperature-controlled water bath component (4) includes a microcontroller (403), which is fixedly installed on the surface of the centrifugal mixing device body (1).

6. The high-efficiency centrifugal mixing device for polyurethane according to claim 1, characterized in that, A heating rod (401) and a temperature sensor (402) are fixedly installed on the inner wall of the inner tank (6).

7. The high-efficiency centrifugal mixing device for polyurethane according to claim 1, characterized in that, An operation panel (2) is fixedly installed on one side of the centrifugal mixing device body (1), and a protective cover (3) is installed on the top of the centrifugal mixing device body (1) via a hinge.

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