Polyurethane casting machine paddle mixer

Abstract

The utility model discloses a kind of polyurethane casting machine paddle type stirring devices, the utility model relates to polyurethane pouring technical field, including stirring tank subassembly, the stirring tank subassembly top is equipped with stirring subassembly, the stirring subassembly includes top cover, the rotation disc is rotatably connected in top cover inboard bottom end, the rotation disc bottom rotatably connected has rotating shaft, the rotating shaft and rotation disc are eccentric structure, rotating shaft top fixed mounting has autorotation gear, the autorotation gear is set in rotation disc top, the gear ring is fixedly installed in top cover inboard middle part, transmission gear is equipped between autorotation gear and gear ring, transmission gear is rotatably connected with rotation disc, and transmission gear is engaged connection with autorotation gear and gear ring;The utility model, simple structure, can effectively avoid local circulation area to appear, realize to raw material sufficient stirring, with higher practical value.

Description

Technical Field

[0001] This utility model relates to the field of polyurethane casting technology, specifically to a paddle-type stirring device for a polyurethane casting machine. Background Technology

[0002] Polyurethane casting is a manufacturing process that uses liquid polyurethane resin to cast into a mold. It belongs to vacuum casting or low-pressure casting technology and is widely used in rapid prototyping, small-batch production, craft manufacturing and industrial parts replication.

[0003] Based on the above, the following problems were found: the paddle-type mixing device of the current polyurethane casting machine is usually a central mixing paddle, which can only generate axial or radial flow in one direction, easily forming local circulation areas, resulting in uneven mixing of materials and inconvenience for use.

[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided a paddle-type mixing device for a polyurethane casting machine, in order to achieve a more practical purpose. Utility Model Content

[0005] The purpose of this invention is to provide a paddle-type mixing device for a polyurethane casting machine to solve the problems mentioned in the background art.

[0006] A paddle-type mixing device for a polyurethane casting machine includes a mixing tank assembly. A mixing component is located on the top of the mixing tank assembly. The mixing component includes a top cover. A rotating disk is rotatably connected to the bottom inner side of the top cover. A rotating shaft is rotatably connected to the bottom of the rotating disk. The rotating shaft and the rotating disk have an eccentric structure. A self-rotating gear is fixedly installed on the top of the rotating shaft. The self-rotating gear is located on the top of the rotating disk. A gear ring is fixedly installed in the middle inner side of the top cover. A transmission gear is provided between the self-rotating gear and the gear ring. The transmission gear is rotatably connected to the rotating disk and meshes with the self-rotating gear and the gear ring.

[0007] By adopting the above technical solution, the mixing tank assembly facilitates the use of it as a container for stirring reactions, holding various components and providing mixing space. The mixing assembly facilitates the stirring and mixing of the components inside the mixing tank assembly. The eccentric structure of the rotating shaft and rotating disk facilitates the rotation of the rotating disk to drive the rotating shaft to revolve. The setting of the self-rotating gear facilitates the rotation of the rotating shaft. The meshing connection between the transmission gear, the self-rotating gear, and the gear ring facilitates the rotation of the rotating disk to drive the transmission gear to make circular motion inside the gear ring. The meshing of the transmission gear and the gear ring causes the transmission gear to rotate, and the rotation of the transmission gear drives the self-rotating gear to rotate. This achieves control of the rotation of the rotating shaft while simultaneously controlling its rotation, improving the stirring effect and enabling the anchor-type paddle, stirring paddle, and propeller to fully stir the raw materials inside the mixing tank assembly.

[0008] Furthermore, a worm gear is fixedly installed at the center of the top of the rotating disk, and the worm gear is located at the top of the top cover.

[0009] By adopting the above technical solution, the worm gear is designed to facilitate the rotation of the rotating disk inside the top cover.

[0010] Furthermore, a stirring motor is fixedly installed at the top of the top cover, and a worm gear is fixedly installed at the output end of the stirring motor, with the worm gear meshing with a worm wheel.

[0011] By adopting the above technical solution, the setting of the stirring motor facilitates the operation of the stirring motor, which drives the worm gear to rotate, thereby controlling the rotation of the rotating disk.

[0012] Furthermore, an anchor-shaped paddle is fixedly installed on the outer side of the bottom end of the rotating shaft, and two stirring paddles are fixedly installed on the outer side of the middle part of the rotating shaft.

[0013] By adopting the above technical solution, the setting of the anchor-shaped paddle and the stirring paddle facilitates the rotation of the rotating shaft to drive the anchor-shaped paddle and the stirring paddle to rotate. The rotation of the anchor-shaped paddle can scrape the inner side of the inner tank to prevent the material from sticking to the wall or forming a skin, and ensure that the edge area is fully mixed. The rotation of the stirring paddle provides shear force to mix and disperse the raw materials and break up agglomerates.

[0014] Furthermore, the top of the stirring paddle is provided with a propulsion paddle, which is fixedly installed on the outside of the rotating shaft.

[0015] By adopting the above technical solution, the propeller is designed to facilitate the rotation of the rotating shaft, which in turn drives the propeller to rotate. The rotation of the propeller generates axial thrust, forming an up-and-down circulating flow that promotes bubble discharge and homogenization.

[0016] Furthermore, the mixing tank assembly includes an inner tank, with a vacuum port on one side of the top of the inner tank and a feeding port on the other side of the top of the inner tank.

[0017] By adopting the above technical solution, the vacuum interface and the feeding interface are designed to facilitate the connection of the vacuum interface to external vacuum equipment, which is used to evacuate the inside of the mixing tank assembly, eliminate air bubbles generated during the mixing process, and ensure uniform product density. The feeding interface is used to connect to external feeding equipment for easy addition of raw materials.

[0018] Furthermore, the inner tank is fitted with an insulation sleeve on the outside, and the bottom of the inner tank is provided with a discharge port.

[0019] By adopting the above technical solution and setting the discharge interface, it is easy to discharge the evenly mixed raw materials, which is convenient for subsequent use.

[0020] Furthermore, a heating ring is provided on the outer side of the bottom end of the inner tank, and the heating ring is fixedly installed between the insulation sleeve and the inner tank.

[0021] By adopting the above technical solution, the heating coil facilitates the provision of an external heat source, and the insulation sleeve enables precise temperature control, thus meeting the temperature sensitivity of the polyurethane reaction.

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows: The mixing tank assembly facilitates its use as a container for stirring reactions, holding various components and providing mixing space. The mixing assembly facilitates the stirring and mixing of the components inside the mixing tank assembly. The eccentric structure of the rotating shaft and rotating disk facilitates the rotation of the rotating disk driving the rotating shaft to revolve. The rotating gear facilitates the rotation of the rotating shaft. The meshing connection between the transmission gear, rotating gear, and gear ring facilitates the rotation of the rotating disk driving the transmission gear to perform circular motion inside the gear ring. The meshing of the transmission gear and gear ring causes the transmission gear to rotate, which in turn drives the rotating gear to rotate. This achieves simultaneous control of the rotating shaft's revolution and rotation, improving the stirring effect and enabling the anchor-type paddle, stirring paddle, and propeller to fully stir the raw materials inside the mixing tank assembly. This utility model has a simple structure, effectively avoids the occurrence of localized circulation areas, and achieves thorough stirring of the raw materials, thus possessing high practical value. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of a paddle-type mixing device for a polyurethane casting machine according to the present invention. Figure 2 This is a partial sectional view of a paddle-type mixing device for a polyurethane casting machine according to this utility model; Figure 3 This is a three-dimensional structural diagram of the stirring assembly of this utility model; Figure 4 This is a schematic diagram of the internal three-dimensional structure of the top cover of this utility model; Figure 5This is a cross-sectional view of the mixing tank assembly of this utility model.

[0024] In the diagram: 1. Mixing tank assembly; 11. Insulation jacket; 12. Vacuum interface; 13. Feeding interface; 14. Discharge interface; 15. Inner tank; 16. Heating coil; 2. Mixing assembly; 21. Top cover; 22. Mixing motor; 23. Rotating disc; 24. Rotating shaft; 25. Anchor-type paddle; 26. Mixing paddle; 27. Propeller; 28. Rotating gear; 29. ​​Transmission gear; 210. Worm gear; 211. Worm; 212. Gear ring. Detailed Implementation

[0025] 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.

[0026] Please see Figures 1-5 This utility model provides a technical solution: a paddle-type mixing device for a polyurethane casting machine, including a mixing tank assembly 1. The mixing tank assembly 1 serves as a container for the mixing reaction, holding various components and providing a mixing space. A mixing component 2 is located on the top of the mixing tank assembly 1, facilitating the mixing of the components inside the mixing tank assembly 1. The mixing component 2 includes a top cover 21, with a rotating disk 23 rotatably connected to the bottom inner side of the top cover 21. A rotating shaft 24 is rotatably connected to the bottom of the rotating disk 23. The rotating shaft 24 and the rotating disk 23 are eccentrically connected, allowing the rotation of the rotating disk 23 to drive the rotating shaft 24 to revolve. A self-rotating gear 28 is fixedly installed on the top of the rotating shaft 24, facilitating the rotation of the self-rotating gear to drive the rotation of the rotating disk 23. The rotating shaft 24 rotates, and the self-rotating gear 28 is set on the top of the rotating disk 23. A gear ring 212 is fixedly installed in the middle of the inner side of the top cover 21. A transmission gear 29 is provided between the self-rotating gear 28 and the gear ring 212. The transmission gear 29 is rotatably connected to the rotating disk 23, and the transmission gear 29 is meshed with the self-rotating gear 28 and the gear ring 212. Through the meshing connection of the transmission gear 29 with the self-rotating gear 28 and the gear ring 212, the rotation of the rotating disk 23 can drive the transmission gear 29 to make a circular motion inside the gear ring 212. The meshing of the transmission gear 29 with the gear ring 212 causes the transmission gear 29 to rotate. The rotation of the transmission gear 29 drives the self-rotating gear 28 to rotate, thereby controlling the rotation of the rotating shaft 24 to rotate while simultaneously rotating itself. This improves the stirring effect and enables the anchor-type paddle 25, the stirring paddle 26, and the propeller paddle 27 to fully stir the raw materials inside the mixing tank assembly 1.

[0027] Among them, a worm gear 210 is fixedly installed at the top center of the rotating disk 23. The worm gear 210 is located at the top of the top cover 21. The worm gear 210 facilitates the rotation of the rotating disk 23 inside the top cover 21.

[0028] The top cover 21 is fixedly equipped with a stirring motor 22, and the output end of the stirring motor 22 is fixedly equipped with a worm 211. The worm 211 is meshed with the worm wheel 210. The stirring motor 22 is designed to make the stirring motor 22 work so that the worm 211 drives the worm wheel 210 to rotate, thereby controlling the rotation of the rotating disk 23.

[0029] An anchor-shaped paddle 25 is fixedly installed on the outer side of the bottom of the rotating shaft 24, and two stirring paddles 26 are fixedly installed on the outer side of the middle part of the rotating shaft 24. The anchor-shaped paddle 25 and the stirring paddle 26 are arranged so that the rotation of the rotating shaft 24 can drive the anchor-shaped paddle 25 and the stirring paddle 26 to rotate. The rotation of the anchor-shaped paddle 25 can scrape the inner side of the inner tank 15 to prevent the material from sticking to the wall or forming a skin, and ensure that the edge area is fully mixed. The rotation of the stirring paddle 26 provides shear force to mix and disperse the raw materials and break up agglomerates.

[0030] The top of the stirring paddle 26 is provided with a propeller 27, which is fixedly installed on the outside of the rotating shaft 24. The propeller 27 is designed to facilitate the rotation of the rotating shaft 24 to drive the propeller 27 to rotate. The rotation of the propeller 27 generates axial thrust, forming an up-and-down circulating flow, which promotes the discharge of bubbles and homogenization.

[0031] The mixing tank assembly 1 includes an inner tank 15. A vacuum port 12 is provided on one side of the top of the inner tank 15, and a feeding port 13 is provided on the other side of the top of the inner tank 15. The vacuum port 12 and the feeding port 13 facilitate the connection of the vacuum port 12 to an external vacuum device for evacuating the inside of the mixing tank assembly 1, eliminating air bubbles generated during the mixing process, and ensuring uniform product density. The feeding port 13 is used to connect to an external feeding device for easy addition of raw materials.

[0032] The inner tank 15 is fitted with an insulation sleeve 11 on the outside, and the bottom of the inner tank 15 is provided with a discharge port 14. The discharge port 14 facilitates the discharge of the evenly mixed raw materials, making it convenient for subsequent use.

[0033] The inner tank 15 has a heating ring 16 on the outer side of its bottom end. The heating ring 16 is fixedly installed between the insulation sleeve 11 and the inner tank 15. The heating ring 16 facilitates the provision of an external heat source and works with the insulation sleeve 11 to achieve precise temperature control, thus meeting the temperature sensitivity of the polyurethane reaction.

[0034] Specifically, the working principle of this paddle-type mixing device for polyurethane casting machines is as follows: During use, the mixing tank assembly 1 serves as a container for the mixing reaction, holding the components and providing mixing space. The vacuum interface 12 and the feeding interface 13 facilitate connection to external vacuum equipment to evacuate the mixing tank assembly 1, eliminating air bubbles generated during mixing and ensuring uniform product density. The feeding interface 13 connects to external feeding equipment for easy addition of raw materials. The discharge interface 14 facilitates the discharge of the uniformly mixed raw materials for subsequent use. The heating coil 16 facilitates the provision of an external heat source, and together with the insulation sleeve 11, achieves precise temperature control to meet the temperature sensitivity of the polyurethane reaction. The stirring assembly 2 facilitates the mixing of the components inside the stirring tank assembly 1. The eccentric structure of the rotating shaft 24 and the rotating disk 23 facilitates the rotation of the rotating disk 23, which in turn drives the rotating shaft 24 to revolve. The stirring motor 22 facilitates the operation of the stirring motor 22, which drives the worm gear 211 to rotate the worm wheel 210, thereby controlling the rotation of the rotating disk 23. The worm wheel 210 facilitates the rotation of the top cover 2. The internal rotating disk 23 rotates, and the rotation of the self-rotating gear 28 facilitates the rotation of the rotating shaft 24. The transmission gear 29 meshes with the self-rotating gear 28 and the gear ring 212, allowing the rotating disk 23 to rotate and drive the transmission gear 29 to make circular motions within the gear ring 212. The meshing of the transmission gear 29 with the gear ring 212 causes the transmission gear 29 to rotate, which in turn drives the self-rotating gear 28. This achieves simultaneous revolution and rotation of the rotating shaft 24, improving the stirring effect and enabling the anchor-type paddle 25, stirring paddle 26, and propeller paddle 27 to perform stirring. The raw materials inside the tank assembly 1 are thoroughly stirred. The anchor-shaped paddle 25 and the stirring paddle 26 are arranged so that the rotation of the rotating shaft 24 can drive the anchor-shaped paddle 25 and the stirring paddle 26 to rotate. The rotation of the anchor-shaped paddle 25 can scrape the inside of the inner tank 15 to prevent the material from sticking to the wall or forming a skin, and ensure that the edge area is fully mixed. The rotation of the stirring paddle 26 provides shear force to mix and disperse the raw materials and break up agglomerates. The propeller paddle 27 is arranged so that the rotation of the rotating shaft 24 can drive the propeller paddle 27 to rotate. The rotation of the propeller paddle 27 generates axial thrust, forming an up-and-down circulating flow, which promotes the discharge of bubbles and homogenization.

[0035] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A paddle-type mixing device for a polyurethane casting machine, characterized in that, The system includes a mixing tank assembly (1), a mixing assembly (2) on top of the mixing tank assembly (1), a mixing assembly (2) including a top cover (21), a rotating disk (23) rotatably connected to the bottom inner side of the top cover (21), a rotating shaft (24) rotatably connected to the bottom of the rotating disk (23), the rotating shaft (24) and the rotating disk (23) having an eccentric structure, a self-rotating gear (28) fixedly installed on the top of the rotating shaft (24), the self-rotating gear (28) being set on the top of the rotating disk (23), a gear ring (212) fixedly installed in the middle inner side of the top cover (21), a transmission gear (29) being provided between the self-rotating gear (28) and the gear ring (212), the transmission gear (29) being rotatably connected to the rotating disk (23), and the transmission gear (29) meshing with the self-rotating gear (28) and the gear ring (212).

2. The paddle-type mixing device for a polyurethane casting machine according to claim 1, characterized in that, A worm gear (210) is fixedly installed at the top center of the rotating disk (23), and the worm gear (210) is located at the top of the top cover (21).

3. The paddle-type mixing device for a polyurethane casting machine according to claim 2, characterized in that, A stirring motor (22) is fixedly installed at the top of the top cover (21), and a worm (211) is fixedly installed at the output end of the stirring motor (22). The worm (211) is meshed with the worm wheel (210).

4. The paddle-type mixing device for a polyurethane casting machine according to claim 1, characterized in that, An anchor-shaped paddle (25) is fixedly installed on the outer side of the bottom end of the rotating shaft (24), and two stirring paddles (26) are fixedly installed on the outer side of the middle part of the rotating shaft (24).

5. The paddle-type mixing device for a polyurethane casting machine according to claim 4, characterized in that, The top of the stirring paddle (26) is provided with a propeller (27), which is fixedly installed on the outside of the rotating shaft (24).

6. The paddle-type mixing device for a polyurethane casting machine according to claim 1, characterized in that, The mixing tank assembly (1) includes an inner tank (15), a vacuum port (12) is provided on one side of the top of the inner tank (15), and a feeding port (13) is provided on the other side of the top of the inner tank (15).

7. The paddle-type mixing device for a polyurethane casting machine according to claim 6, characterized in that, The inner tank (15) is covered with an insulation sleeve (11), and the bottom of the inner tank (15) is provided with a discharge port (14).

8. The paddle-type mixing device for a polyurethane casting machine according to claim 7, characterized in that, A heating ring (16) is provided on the outer side of the bottom of the inner tank (15), and the heating ring (16) is fixedly installed between the insulation sleeve (11) and the inner tank (15).

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