Stirring device for production of polyurethane foam material

Abstract

The utility model discloses a stirring device for polyurethane foaming material production, which is applied to the technical field of polyurethane foaming material production and comprises a stirring tank, a motor is mounted on one side of the top of the stirring tank, the output end of the motor is fixedly connected with a first bevel gear, a fixing rod is fixedly connected inside the stirring tank, and the fixing rod is fixedly connected with a second bevel gear. The surface of the fixing rod is rotationally connected with a rotating cylinder, the surface of the top of the rotating cylinder is sleeved with a second bevel gear meshed with the first bevel gear, and the two sides of the bottom of the rotating cylinder are rotationally connected with foaming rakes correspondingly; and a fourth bevel gear is driven to be meshed with a third bevel gear, so that the foaming harrow rotates to foam the polyurethane foaming material, the foaming efficiency of the foaming harrow can be improved, and the practicability is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of polyurethane foam material production, in particular to a stirring device for polyurethane foam material production. Background Art

[0002] The polyurethane foam material is the raw material for making the polyurethane foaming agent. The polyurethane foam material is stirred by a stirring device to produce the polyurethane foaming agent.

[0003] At present, the Chinese utility model with the publication number of CN216465780U discloses a stirring device for the production of polyurethane foam materials, including a tank body, a mounting frame, a feed port, a discharge port, a driver, a power cord, a transmission shaft, a stirring shaft and a mixing device. The design is provided with a mixing device on the surface of the transmission shaft. When the transmission shaft rotates, the driving teeth are driven to rotate, thereby rotating the mixing plate. Because the mixing plate is a middle frame with small ends, the raw materials are pushed to both sides for diffusion and mixing when the mixing plate rotates, thereby improving the mixing effect, achieving the beneficial effect of improving the mixing effect of the raw materials, thereby reducing the stirring time and improving the stirring efficiency; a limited sliding mechanism is provided on the surface of the fixed frame, when the connecting plate rotates, the rolling body is driven to rotate along the surface of the guide groove, and the connecting plate is limited by the fixed block when it rotates, thereby achieving the beneficial effect of improving the stability of the connecting plate and improving the rotation effect.

[0004] During the production process of polyurethane foam material, messy bubbles will form on the top. If these bubbles are not dispersed, they will affect the stirring and mixing of the polyurethane foam material. The existing stirring device will install a foaming rake on the top of the stirring rod, and the foaming rake will foam by rotating the stirring rod. Since the foaming rake can only rotate with the stirring rod and cannot rotate itself, many bubbles will be missed, and the foaming efficiency is low. At the same time, during the production process of polyurethane foam material, the internal container of the stirring device needs to be heated to prevent the internal temperature from being too low, which will make it difficult to fully mix the stirred polyurethane foam material. Common stirring devices generally control the internal temperature by injecting hot water into the inner wall, but this method requires personnel to observe regularly to prevent the internal hot water from being cooled and not discharged and replaced in time, thereby causing the internal cooling of the stirring device. The operation is relatively troublesome and the internal cooled hot water cannot be automatically replaced, so it is less practical. Utility Model Content

[0005] The utility model aims to provide a stirring device for producing polyurethane foaming materials, which has the advantages of improving the foaming efficiency and being able to automatically replace the hot water cooled inside.

[0006] The above technical purpose of the utility model is achieved through the following technical scheme: a stirring device for producing polyurethane foaming materials, comprising a stirring tank, a motor is installed on one side of the top of the stirring tank, the output end of the motor is fixedly connected to a first bevel gear, a fixed rod is fixedly connected to the inside of the stirring tank, the surface of the fixed rod is rotatably connected to a rotating cylinder, the surface of the top of the rotating cylinder is sleeved with a second bevel gear meshing with the first bevel gear, both sides of the bottom of the rotating cylinder are rotatably connected to a foaming rake, the bottom of the fixed rod is fixedly connected to a third bevel gear, and one end of the foaming rake close to the third bevel gear is fixedly connected to a fourth bevel gear meshing with the third bevel gear.

[0007] By adopting the above technical scheme, when the polyurethane foam material is stirred by rotating the foaming rake, the fourth bevel gear is driven to mesh with the third bevel gear, so that the foaming rake itself is rotated to foam the polyurethane foam material, thereby improving the foaming efficiency of the foaming rake and improving practicality; by utilizing the memory metal spring, it can be molded into a specific shape at high temperature, so that it will "remember" and restore to its initial shape at high temperature after contacting heat. After the water temperature inside the water injection chamber changes, it can drive the piston to slide to automatically discharge the cold water inside the water injection chamber, and the setting is automatically closed after enough hot water flows in, so there is no need for personnel to regularly replace hot water, which is convenient for practical use.

[0008] The utility model is further configured as follows: a water injection cavity is provided inside the inner wall of the mixing tank, one side of the top of the water injection cavity is fixedly connected to a heat-insulating water chamber, a side of the bottom of the water injection cavity away from the heat-insulating water chamber is fixedly connected to a drain pipe, a piston is slidably connected inside the drain pipe, a water outlet is provided at the bottom of the drain pipe, one end of the piston close to the inside of the water injection cavity is fixedly connected to a memory metal spring fixedly connected to the mixing tank, and a side of the piston away from the memory metal spring is fixedly connected to a rebound spring fixedly connected to the drain pipe.

[0009] By adopting the above technical solution, the piston can be driven to slide to automatically discharge the cold water in the water injection chamber, and it will automatically close after enough hot water flows in, so there is no need for personnel to regularly replace the hot water, which is convenient for actual use.

[0010] The utility model is further configured as follows: a feeding port is opened on one side of the top of the stirring tank, and a filter screen is fixedly installed inside the feeding port.

[0011] The adoption of the technical solution facilitates filtering of the polyurethane foaming raw materials added into the feeding port, thereby reducing internal impurities.

[0012] The utility model is further configured as follows: a cover plate is hingedly connected to one side of the top of the feeding port.

[0013] By adopting the above technical solution, the top of the feeding port can be covered to prevent dust from falling into the inside.

[0014] The utility model is further configured as follows: a heat dissipation net used in conjunction with the motor is installed on the side of the outside of the mixing tank close to the motor.

[0015] By adopting the above technical solution, ventilation and heat dissipation can be carried out when the mixing tank is working, thereby improving working stability.

[0016] The utility model is further configured as follows: one end of the foaming rake close to the rotating cylinder is fixedly sleeved with a sealing ring which is slidably connected with the rotating cylinder.

[0017] The above technical solution is adopted to improve the sealing performance and prevent the polyurethane foam material from penetrating into the interior.

[0018] The utility model is further configured as follows: a stirring rod rotatably connected to the stirring tank is fixedly connected to the bottom of the rotating cylinder.

[0019] The above technical solution is adopted to facilitate driving the stirring rod to rotate and stir and mix the polyurethane foam material inside the stirring tank.

[0020] The utility model is further configured as follows: a heat conducting plate is fixedly connected to the surface of the inner wall of the stirring tank, and a thermometer used in conjunction with the water injection cavity is installed on one side of the outside of the stirring tank.

[0021] By adopting the above technical solution, the heat inside the water injection chamber is conducted to improve the heating effect, and at the same time it is convenient for personnel to observe the stability of the water source inside the water injection chamber from the outside.

[0022] In summary, the utility model has the following beneficial effects:

[0023] 1. When the polyurethane foam material is stirred by the rotation of the foaming rake, the fourth bevel gear is driven to mesh with the third bevel gear, so that the foaming rake itself rotates to foam the polyurethane foam material, thereby improving the foaming efficiency of the foaming rake and improving practicality;

[0024] 2. By utilizing the memory metal spring, it can be molded into a specific shape at high temperature, so that it will "remember" and return to its initial shape at high temperature after contact with heat. When the water temperature inside the water injection chamber changes, it can drive the piston to slide and automatically discharge the cold water inside the water injection chamber, and automatically close the setting after enough hot water flows in, so there is no need for personnel to regularly replace hot water, which is convenient for practical use. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of the utility model;

[0026] Figure 2It is a cross-sectional view of the structure of the utility model;

[0027] Figure 3 This utility model Figure 2 A magnified view of point A in the figure;

[0028] Figure 4 It is a top view of the structure of the stirring tank of the utility model.

[0029] Figure numerals: 1. stirring tank; 2. motor; 3. fixing rod; 4. rotating cylinder; 5. first bevel gear; 6. second bevel gear; 7. third bevel gear; 8. foaming rake; 9. fourth bevel gear; 10. water injection chamber; 11. heat preservation water chamber; 12. drain pipe; 13. memory metal spring; 14. piston; 15. return spring; 16. water outlet; 17. feeding port; 18. filter screen; 19. cover plate; 20. heat dissipation net; 21. sealing ring; 22. stirring rod; 23. heat conduction plate; 24. thermometer. DETAILED DESCRIPTION

[0030] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0031] Embodiment 1:

[0032] refer to Figure 1 , Figure 2 , a stirring device for producing polyurethane foam material, comprising a stirring tank 1, a motor 2 is installed on one side of the top of the stirring tank 1, a first bevel gear 5 is fixedly connected to the output end of the motor 2, a fixed rod 3 is fixedly connected to the inside of the stirring tank 1, a rotating cylinder 4 is rotatably connected to the surface of the fixed rod 3, a second bevel gear 6 meshing with the first bevel gear 5 is sleeved on the surface of the top of the rotating cylinder 4, a frothing rake 8 is rotatably connected to both sides of the bottom of the rotating cylinder 4, a third bevel gear 7 is fixedly connected to the bottom of the fixed rod 3, and a fourth bevel gear 9 meshing with the third bevel gear 7 is fixedly connected to one end of the frothing rake 8 close to the third bevel gear 7; when the polyurethane foam material is stirred by rotating the frothing rake 8, the fourth bevel gear 9 is driven to mesh with the third bevel gear 7, so that the frothing rake 8 itself is rotated to foam the polyurethane foam material, thereby improving the frothing efficiency of the frothing rake 8 and improving practicality.

[0033] refer to Figure 1 , Figure 2 A feeding port 17 is provided on one side of the top of the stirring tank 1, and a filter screen 18 is fixedly installed inside the feeding port 17 to facilitate filtering the polyurethane foaming raw materials added to the feeding port 17 to reduce internal impurities.

[0034] refer to Figure 1 , Figure 2A cover plate 19 is hinged on one side of the top of the feeding port 17, and the top of the feeding port 17 can be covered to prevent dust from falling into the interior.

[0035] refer to Figure 2 A heat dissipation net 20 used in conjunction with the motor 2 is installed on the side of the outside of the mixing tank 1 close to the motor 2, which can be ventilated and dissipated when the mixing tank 1 is working, thereby improving working stability.

[0036] Brief description of the use process: by turning on the motor 2, the first bevel gear 5 is driven to rotate and mesh with the second bevel gear 6, thereby driving the rotating cylinder 4 to rotate on the surface of the fixed rod 3, so that the bottom of the rotating cylinder 4, the frothing rake 8 and the stirring rod 22 rotate to stir the polyurethane foaming material, and at the same time, the frothing rake 8 drives the fourth bevel gear 9 to mesh with the third bevel gear 7 during the rotation process, so that the frothing rake 8 itself rotates to foam the polyurethane foaming material.

[0037] Embodiment 2:

[0038] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , a stirring device for producing polyurethane foaming materials, a water injection chamber 10 is provided inside the inner wall of a stirring tank 1, one side of the top of the water injection chamber 10 is fixedly connected with a heat preservation water chamber 11, a side of the bottom of the water injection chamber 10 away from the heat preservation water chamber 11 is fixedly connected with a drain pipe 12, a piston 14 is slidably connected inside the drain pipe 12, a water outlet 16 is provided at the bottom of the drain pipe 12, one end of the piston 14 close to the inside of the water injection chamber 10 is fixedly connected with a memory metal spring 13 fixedly connected to the stirring tank 1, and a side of the piston 14 away from the memory metal spring 13 is fixedly connected with a return spring 15 fixedly connected to the drain pipe 12; the memory metal spring 13 can be molded into a specific shape at high temperature, so that it will "remember" and restore to its initial shape at high temperature after contacting heat, and after the water temperature inside the water injection chamber 10 changes, the piston 14 can be driven to slide to automatically discharge the cold water inside the water injection chamber 10, and the setting is automatically closed after enough hot water flows in, so that there is no need for personnel to regularly replace hot water, which is convenient for actual use.

[0039] refer to Figure 2 One end of the foaming rake 8 close to the rotating cylinder 4 is fixedly sleeved with a sealing ring 21 which is slidably connected to the rotating cylinder 4 to improve the sealing performance and prevent the polyurethane foaming material from penetrating into the interior.

[0040] refer to Figure 2 The bottom of the rotating cylinder 4 is fixedly connected with a stirring rod 22 which is rotatably connected to the stirring tank 1 , so as to drive the stirring rod 22 to rotate and stir and mix the polyurethane foam material inside the stirring tank 1 .

[0041] refer to Figure 1 , Figure 2 A heat conducting plate 23 is fixedly connected to the surface of the inner wall of the mixing tank 1, and a thermometer 24 used in conjunction with the water injection chamber 10 is installed on one side of the outside of the mixing tank 1 to conduct heat inside the water injection chamber 10 to improve the heating effect, while making it convenient for personnel to observe the stability of the water source inside the water injection chamber 10 from the outside.

[0042] A brief description of the usage process: by filling the water injection chamber 10 and the heat-insulating water chamber 11 with hot water, the memory metal spring 13 returns to a contracted shape when it contacts the hot water, thereby generating a pulling force to overcome the elastic force of the return spring 15 and pull the piston 14 to the top of the water outlet 16 to seal the drain pipe 12. When the hot water in the water injection chamber 10 becomes cold, the memory metal spring 13 lacks the temperature and cannot continue to deform to overcome the elastic force of the return spring 15, thereby driving the piston 14 to be pulled back by the rebound force of the return spring 15, so that the water outlet 16 and the inside of the drain pipe 12 are connected to discharge the cold water. At the same time, the hot water insulated in the heat-insulating water chamber 11 automatically flows into the water injection chamber 10 by gravity, so that the water source temperature in the water injection chamber 10 continues to rise, and then the memory metal spring 13 can return to a contracted shape when it contacts the hot water and drive the piston 14 to seal the water outlet 16 again.

[0043] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A stirring device for producing polyurethane foam material, comprising a stirring tank (1), characterized in that: A motor (2) is installed on one side of the top of the stirring tank (1); the output end of the motor (2) is fixedly connected to a first bevel gear (5); a fixing rod (3) is fixedly connected inside the stirring tank (1); a rotating cylinder (4) is rotatably connected to the surface of the fixing rod (3); a second bevel gear (6) meshing with the first bevel gear (5) is sleeved on the surface of the top of the rotating cylinder (4); a frothing rake (8) is rotatably connected to both sides of the bottom of the rotating cylinder (4); a third bevel gear (7) is fixedly connected to the bottom of the fixing rod (3); and a fourth bevel gear (9) meshing with the third bevel gear (7) is fixedly connected to one end of the frothing rake (8) close to the third bevel gear (7).

2. A stirring device for producing polyurethane foam material according to claim 1, characterized in that: A water injection chamber (10) is provided inside the inner wall of the stirring tank (1), one side of the top of the water injection chamber (10) is fixedly connected to a heat preservation water chamber (11), the bottom of the water injection chamber (10) away from the heat preservation water chamber (11) is fixedly connected to a drain pipe (12), a piston (14) is slidably connected inside the drain pipe (12), a water outlet (16) is provided at the bottom of the drain pipe (12), one end of the piston (14) close to the inside of the water injection chamber (10) is fixedly connected to a memory metal spring (13) fixedly connected to the stirring tank (1), and the side of the piston (14) away from the memory metal spring (13) is fixedly connected to a return spring (15) fixedly connected to the drain pipe (12).

3. A stirring device for producing polyurethane foam material according to claim 1, characterized in that: A feeding port (17) is provided on one side of the top of the stirring tank (1), and a filter screen (18) is fixedly installed inside the feeding port (17).

4. A stirring device for producing polyurethane foam material according to claim 3, characterized in that: A cover plate (19) is hingedly connected to one side of the top of the feeding port (17).

5. A stirring device for producing polyurethane foam material according to claim 1, characterized in that: A heat dissipation net (20) used in conjunction with the motor (2) is installed on the side of the outside of the stirring tank (1) close to the motor (2).

6. A stirring device for producing polyurethane foam material according to claim 1, characterized in that: One end of the frothing rake (8) close to the rotating cylinder (4) is fixedly sleeved with a sealing ring (21) which is slidably connected to the rotating cylinder (4).

7. A stirring device for producing polyurethane foam material according to claim 1, characterized in that: The bottom of the rotating cylinder (4) is fixedly connected with a stirring rod (22) which is rotatably connected to the stirring tank (1).

8. A stirring device for producing polyurethane foam material according to claim 2, characterized in that: A heat conducting plate (23) is fixedly connected to the surface of the inner wall of the stirring tank (1), and a thermometer (24) used in conjunction with the water injection chamber (10) is installed on one side of the outside of the stirring tank (1).

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