Polyurethane heating and insulation device

Abstract

This utility model belongs to the field of polyurethane production technology, and in particular to a polyurethane heating and insulation device, which includes an insulation cylinder. The heating and insulation device further includes: an inner cylinder, the top end of which is fixedly installed on the inner wall of the top of the insulation cylinder; a first motor, which is fixedly installed at the bottom of the insulation cylinder, and the output shaft of the first motor passes through the bottom of the insulation cylinder and the bottom of the inner cylinder and extends into the interior of the inner cylinder; a rotating shaft, the bottom end of which is fixedly installed on the output shaft of the first motor, and multiple stirring rods are fixedly installed on the rotating shaft; and a heating assembly, which includes a heater and a heating tube. This utility model achieves motor protection through a simple structure, improves the service life of the motor, facilitates polyurethane discharge, avoids discharge obstruction, and facilitates cleaning of the interior of the inner cylinder, improving ease of use and practicality.

Description

Technical Field

[0001] This utility model relates to the field of polyurethane production technology, and in particular to a polyurethane heating and insulation device. Background Technology

[0002] Polyurethane is mainly used in polyurethane synthetic leather and polyurethane adhesives. In addition, it is used in civil engineering, mining, and petroleum engineering to prevent water seepage and stabilize buildings or roadbeds. It can also be used as a paving material for sports tracks and interior flooring. During the production process, polyurethane requires heating and insulation devices to maintain its properties.

[0003] In the prior art, Chinese patent application number 201920022866.0 discloses a heating and insulation device for polyurethane production, including a heating tank. A rotating shaft is movably sleeved at the bottom of the heating tank. A stirring blade located inside the heating tank is fixedly sleeved on the outer surface of the rotating shaft. The bottom end of the rotating shaft penetrates the heating tank and extends to the outside of the bottom end of the heating tank, where an insulation tank is movably sleeved. A motor is fixedly installed at the bottom of the inner cavity of the insulation tank. A female gear is fixedly sleeved on the output shaft of the motor, and a male gear is meshed with the top of the female gear. This heating and insulation device for polyurethane production, through the interaction of a cover and a retaining ring, allows the cover to separate from the retaining ring when the pressure inside the heating tank increases. This releases the pressure inside the heating tank through a pressure relief hole, preventing the heating tank from bursting due to continuous pressure increases, thus improving the safety of the heating and insulation device.

[0004] However, the above technical solutions have the following drawbacks: the motor is installed inside the heat preservation tank, and the high temperature generated when the heater is working will cause the motor to overheat and be damaged, reducing the service life of the motor. Secondly, it is not convenient to clean the inside of the heating tank, and the discharge port is located on the side, which leads to incomplete discharge and cannot meet the usage requirements. Therefore, this application proposes a polyurethane heating and heat preservation device to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to solve the shortcomings of the existing technology, which is that the motor is installed inside the heat preservation tank, the high temperature generated by the heater during operation will cause the motor to overheat and be damaged, reducing the service life of the motor. Secondly, it is not convenient to clean the inside of the heating tank, and the discharge port is located on the side, resulting in incomplete discharge. Therefore, a polyurethane heating and heat preservation device is proposed.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A polyurethane heating and insulation device includes an insulation cylinder, and the heating and insulation device further includes:

[0008] Inner cylinder, the top end of which is fixedly installed on the top inner wall of the insulation cylinder;

[0009] The first motor is fixedly installed at the bottom of the insulation cylinder, and the output shaft of the first motor passes through the bottom of the insulation cylinder and the bottom of the inner cylinder and extends into the interior of the inner cylinder.

[0010] A rotating shaft, the bottom end of which is fixedly mounted on the output shaft of the first motor, and multiple stirring rods are fixedly mounted on the rotating shaft;

[0011] A heating assembly, comprising: a heater and a heating tube, wherein the heater is fixedly installed on the bottom inner wall of the insulation cylinder, the bottom end of the heating tube is connected to the heater, and the heating tube is sleeved on the outside of the inner cylinder;

[0012] The discharge assembly includes a discharge pipe, a second motor, and a screw conveyor. The rear end of the discharge pipe passes through the front side of the insulation cylinder and the front side of the inner cylinder and is connected to the inside of the inner cylinder. The second motor is fixedly installed on the rear side of the insulation cylinder. The output shaft of the second motor passes through the rear side of the insulation cylinder and the rear side of the inner cylinder and is fixedly installed on the rear end of the screw conveyor. The front end of the screw conveyor extends into the discharge pipe.

[0013] A sealing assembly is disposed at the top of the insulation cylinder and cooperates with the top of the inner cylinder.

[0014] As a preferred embodiment of this utility model, the bottom inner wall of the inner cylinder is provided with an inclined surface.

[0015] As a preferred embodiment of this utility model, a valve is fixedly installed on the discharge pipe.

[0016] As a preferred embodiment of this utility model, the sealing assembly includes two electric push rods, a pressure plate, four connecting rods, and a sealing plate. The two electric push rods are respectively fixedly installed on the left and right sides of the insulation cylinder. The bottom of the pressure plate is respectively fixedly installed on the output shaft of the two electric push rods. The top ends of the four connecting rods are all fixedly installed on the bottom of the pressure plate. The bottom ends of the four connecting rods are all fixedly installed on the top of the sealing plate. The bottom of the sealing plate is in contact with the top of the inner cylinder.

[0017] As a preferred embodiment of this utility model, a fixing ring is fixedly fitted on the heat preservation cylinder, and the bottoms of the two electric push rods are fixedly installed on the top of the fixing ring.

[0018] In a preferred embodiment of this utility model, a collar is fixedly installed at the bottom of the sealing plate, and the collar can be detachably sleeved on the top of the rotating shaft.

[0019] Beneficial effects:

[0020] 1. By starting the heater and heating tube, the inner cylinder and the polyurethane inside it can be heated. At the same time, starting the first motor can drive the rotating shaft and multiple stirring rods to rotate, thereby achieving the stirring and mixing of polyurethane and improving the heating and mixing effect of polyurethane. By placing the first motor outside the heat preservation cylinder, the high temperature of the heater and heating tube can be avoided from damaging the first motor, thus improving the service life of the first motor.

[0021] 2. By starting the second motor, the screw conveyor bar can be rotated, which can work with the discharge pipe to continuously and stably transport the polyurethane inside the inner cylinder to the outside, ensuring the discharge efficiency and effect of the polyurethane.

[0022] 3. By activating the electric push rod, the pressure plate, four connecting rods and sealing plate can be raised and lowered. This allows for the opening and closing of the top of the inner cylinder, making it convenient to feed materials into the inner cylinder and to clean the inside of the inner cylinder, thus improving ease of use.

[0023] This utility model achieves motor protection and extends motor life through a simple structure. It also facilitates polyurethane discharge, avoiding discharge obstruction, and makes it easy to clean the inside of the inner cylinder, improving ease of use and practicality. Attached Figure Description

[0024] Figure 1 This is a three-dimensional front view of the structure of this utility model;

[0025] Figure 2 This is a cross-sectional view of the structure of the heat-insulating cylinder and the inner cylinder of this utility model;

[0026] Figure 3 Three-dimensional structural diagrams of the inner cylinder, rotating shaft, stirring rod, inclined surface, discharge pipe, second motor, screw conveyor rod, and valve of this utility model;

[0027] Figure 4 This is a three-dimensional structural diagram of the inner cylinder, heater, heating tube, inclined surface, discharge pipe, spiral conveyor rod, and valve of this utility model.

[0028] Figure 5 This is a three-dimensional structural diagram of the fixing ring, electric push rod, pressure plate, connecting rod, sealing plate, and collar of this utility model;

[0029] Figure 6 This is a three-dimensional rear view of the structure of this utility model.

[0030] In the diagram: 1. Insulation cylinder; 2. Inner cylinder; 3. First motor; 4. Rotating shaft; 5. Stirring rod; 6. Heater; 7. Heating tube; 8. Inclined surface; 9. Discharge pipe; 10. Second motor; 11. Screw conveyor rod; 12. Valve; 13. Fixing ring; 14. Electric push rod; 15. Pressure plate; 16. Connecting rod; 17. Sealing plate; 18. Collar. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0032] Example

[0033] Reference Figures 1-6 A polyurethane heating and insulation device includes an insulation cylinder 1, and the heating and insulation device further includes:

[0034] Inner cylinder 2, the top end of which is fixedly installed on the top inner wall of the insulation cylinder 1;

[0035] The first motor 3 is fixedly installed at the bottom of the insulation cylinder 1. The output shaft of the first motor 3 passes through the bottom of the insulation cylinder 1 and the bottom of the inner cylinder 2 and extends into the interior of the inner cylinder 2.

[0036] A rotating shaft 4 is fixedly mounted on the output shaft of the first motor 3 at its bottom end, and multiple stirring rods 5 are fixedly mounted on the rotating shaft 4.

[0037] The heating assembly includes a heater 6 and a heating tube 7. The heater 6 is fixedly installed on the bottom inner wall of the insulation cylinder 1, and the bottom end of the heating tube 7 is connected to the heater 6. The heating tube 7 is sleeved on the outside of the inner cylinder 2.

[0038] The discharge assembly includes a discharge pipe 9, a second motor 10, and a screw conveyor 11. The rear end of the discharge pipe 9 passes through the front side of the insulation cylinder 1 and the front side of the inner cylinder 2, and is connected to the interior of the inner cylinder 2. The second motor 10 is fixedly installed on the rear side of the insulation cylinder 1. The output shaft of the second motor 10 passes through the rear side of the insulation cylinder 1 and the rear side of the inner cylinder 2, and is fixedly installed on the rear end of the screw conveyor 11. The front end of the screw conveyor 11 extends into the discharge pipe 9.

[0039] The sealing component is located at the top of the insulation cylinder 1 and cooperates with the top of the inner cylinder 2.

[0040] With the above structure: by activating the heater 6 and heating tube 7, the inner cylinder 2 and the polyurethane inside it can be heated. At the same time, activating the first motor 3 can drive the rotating shaft 4 and multiple stirring rods 5 to rotate, thereby achieving the stirring and mixing of polyurethane and improving the heating and mixing effect of polyurethane. Here, by placing the first motor 3 outside the heat preservation cylinder 1, the high temperature of the heater 6 and heating tube 7 can be used to avoid damage to the first motor 3, thereby improving the service life of the first motor 3. In addition, by activating the second motor 10, the screw conveyor rod 11 can be driven to rotate, thereby cooperating with the discharge pipe 9 to continuously and stably transport the polyurethane inside the inner cylinder 2 to the outside, ensuring the discharge efficiency and effect of polyurethane.

[0041] As a preferred embodiment of this utility model, the bottom inner wall of the inner cylinder 2 is provided with an inclined surface 8. By providing an inclined surface 8 on the bottom inner wall of the inner cylinder 2, it is possible to facilitate the flow of polyurethane to the position of the spiral conveyor rod 11 and promote the discharge of polyurethane.

[0042] As a preferred embodiment of this utility model, a valve 12 is fixedly installed on the discharge pipe 9, and the opening and closing of the discharge pipe 9 can be controlled by setting the valve 12.

[0043] As a preferred embodiment of this utility model, the sealing assembly includes two electric push rods 14, a pressure plate 15, four connecting rods 16, and a sealing plate 17. The two electric push rods 14 are respectively fixedly installed on the left and right sides of the insulation cylinder 1. The bottom of the pressure plate 15 is respectively fixedly installed on the output shaft of the two electric push rods 14. The top ends of the four connecting rods 16 are all fixedly installed on the bottom of the pressure plate 15, and the bottom ends of the four connecting rods 16 are all fixedly installed on the top of the sealing plate 17. The bottom of the sealing plate 17 is in contact with the top of the inner cylinder 2. By activating the electric push rods 14, the pressure plate 15, the four connecting rods 16, and the sealing plate 17 can be raised and lowered. This enables the opening and closing operation of the top of the inner cylinder 2, thereby facilitating the feeding of materials into the inner cylinder 2 and making it easier to clean the inside of the inner cylinder 2, thus improving ease of use.

[0044] As a preferred embodiment of this utility model, a fixing ring 13 is fixedly sleeved on the heat preservation cylinder 1, and the bottoms of the two electric push rods 14 are fixedly installed on the top of the fixing ring 13. By setting the fixing ring 13, it is convenient to install and fix the electric push rods 14.

[0045] As a preferred embodiment of this utility model, a collar 18 is fixedly installed at the bottom of the sealing plate 17. The collar 18 can be detachably sleeved on the top of the rotating shaft 4. By setting the collar 18, after the sealing plate 17 closes and seals the top of the inner cylinder 2, the collar 18 can be sleeved on the rotating shaft 4, thereby improving the rotational stability of the rotating shaft 4 and the multiple stirring rods 5.

[0046] It should be noted that the specific models of the first motor 3, the second motor 10, and the electric push rod 14 used are to be selected by those skilled in the art. Furthermore, the first motor 3, the second motor 10, and the electric push rod 14 mentioned above are all existing technologies, and this solution will not elaborate on them.

[0047] The heater 6 and heating tube 7 adopt existing technology and can be directly used with the structure of the patent with application number 201920022866.0, so they will not be described in detail.

[0048] The working principle of this utility model is as follows: In use, the first motor 3, heater 6, heating tube 7, second motor 10, and electric push rod 14 are first connected to an external power source. Then, by starting the heater 6 and heating tube 7, the inner cylinder 2 and the polyurethane inside it can be heated. At the same time, starting the first motor 3 can drive the rotating shaft 4 and multiple stirring rods 5 to rotate, thereby achieving the stirring and mixing of polyurethane and improving the heating and mixing effect of polyurethane. Here, by placing the first motor 3 outside the heat preservation cylinder 1, the high temperature of the heater 6 and heating tube 7 can be used to prevent the first motor from being damaged. 3. It can improve the service life of the first motor 3. In addition, by starting the second motor 10, the screw conveyor rod 11 can be driven to rotate, thereby cooperating with the discharge pipe 9 to continuously and stably convey the polyurethane inside the inner cylinder 2 to the outside, which can ensure the discharge efficiency and effect of polyurethane. Then, by starting the electric push rod 14, the pressure plate 15, the four connecting rods 16 and the sealing plate 17 can be raised and lowered. At this time, the opening and closing operation of the top of the inner cylinder 2 can be realized, which can facilitate the feeding of materials into the inner cylinder 2, and at the same time facilitate the cleaning of the inner cylinder 2, improving the ease of use.

[0049] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A polyurethane heating and insulation device, comprising an insulation cylinder (1), characterized in that, The heating and heat preservation device also includes: Inner cylinder (2), the top end of which is fixedly installed on the top inner wall of the insulation cylinder (1); The first motor (3) is fixedly installed at the bottom of the insulation cylinder (1). The output shaft of the first motor (3) passes through the bottom of the insulation cylinder (1) and the bottom of the inner cylinder (2) and extends into the interior of the inner cylinder (2). A rotating shaft (4) is fixedly installed at the bottom end on the output shaft of the first motor (3), and multiple stirring rods (5) are fixedly installed on the rotating shaft (4). The heating assembly includes a heater (6) and a heating tube (7). The heater (6) is fixedly installed on the bottom inner wall of the insulation cylinder (1). The bottom end of the heating tube (7) is connected to the heater (6). The heating tube (7) is sleeved on the outside of the inner cylinder (2). The discharge assembly includes a discharge pipe (9), a second motor (10), and a screw conveyor (11). The rear end of the discharge pipe (9) passes through the front side of the insulation cylinder (1) and the front side of the inner cylinder (2) and is connected to the interior of the inner cylinder (2). The second motor (10) is fixedly installed on the rear side of the insulation cylinder (1). The output shaft of the second motor (10) passes through the rear side of the insulation cylinder (1) and the rear side of the inner cylinder (2) and is fixedly installed on the rear end of the screw conveyor (11). The front end of the screw conveyor (11) extends into the discharge pipe (9). A sealing assembly is disposed on the top of the insulation cylinder (1) and is fitted with the top of the inner cylinder (2).

2. The polyurethane heating and insulation device according to claim 1, characterized in that, The bottom inner wall of the inner cylinder (2) is provided with an inclined surface (8).

3. The polyurethane heating and insulation device according to claim 1, characterized in that, A valve (12) is fixedly installed on the discharge pipe (9).

4. The polyurethane heating and insulation device according to claim 1, characterized in that, The sealing assembly includes two electric push rods (14), a pressure plate (15), four connecting rods (16) and a sealing plate (17). The two electric push rods (14) are fixedly installed on the left and right sides of the insulation cylinder (1), respectively. The bottom of the pressure plate (15) is fixedly installed on the output shaft of the two electric push rods (14), respectively. The top ends of the four connecting rods (16) are all fixedly installed on the bottom of the pressure plate (15), and the bottom ends of the four connecting rods (16) are all fixedly installed on the top of the sealing plate (17). The bottom of the sealing plate (17) is in contact with the top of the inner cylinder (2).

5. A polyurethane heating and insulation device according to claim 4, characterized in that, A fixing ring (13) is fixedly fitted on the heat insulation cylinder (1), and the bottoms of the two electric push rods (14) are fixedly installed on the top of the fixing ring (13).

6. A polyurethane heating and insulation device according to claim 4, characterized in that, A collar (18) is fixedly installed at the bottom of the sealing plate (17), and the collar (18) can be detached and sleeved on the top of the rotating shaft (4).

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