Mixing and stirring device for polyurethane composite material

Abstract

The utility model relates to the technical field of polyurethane composite materials, and discloses a polyurethane composite material mixing and stirring device which comprises a machine body, two scraping plates are arranged in the machine body, the multiple scraping plates make contact with the inner wall of the machine body, the bottom ends of the multiple scraping plates are rotationally connected with rotating rods, and the rotating rods are arranged in the machine body. A plurality of circumferentially distributed auxiliary stirring plates are fixedly connected to the outer surfaces of the rotating rods, a rotating ring is rotatably connected to the inner wall of the machine body, and a plurality of sweeping plates are fixedly connected to the bottom surface of the rotating ring. According to the mixing and stirring device for the polyurethane composite material, the inner wall of the machine body can be cleaned by mounting a scraper blade, raw materials can be prevented from being accumulated on the inner wall of the machine body, and the raw materials around the inner wall of the machine body can be uniformly stirred through cooperation of an auxiliary stirring plate, so that the stirring efficiency is improved; and a sweeping plate is installed to be matched with a vibration motor, so that the discharging pipe can be dredged, and the situation that raw materials are accumulated at the discharging pipe in the discharging process, and the discharging pipe is blocked is avoided.

Description

Technical Field

[0001] This application relates to the technical field of polyurethane premix, and specifically relates to a mixing and stirring device for polyurethane premix. Background Technique

[0002] One of the main raw materials of polyurethane thermal insulation materials is polyurethane rigid foam polyether blend. Polyurethane rigid foam polyether blend is also known as white material, and together with polymeric MDI, they are called black and white materials. It is applicable to various occasions such as building thermal insulation, cold insulation, solar energy, water heaters, cold storage, constant temperature storage, beer tanks, refrigeration, etc. that require thermal insulation and cold insulation.

[0003] The existing patent (publication number: CN217431610U) discloses an automatic batching and mixing device for polyurethane premix in the technical field of polyurethane mixture, including a box body. A mixing mechanism is arranged at the bottom end of the box body. Two storage boxes are symmetrically arranged at the top end of the box body. First discharge pipes and second discharge pipes are arranged at the bottom ends of the two storage boxes. A fixed box and two symmetrical feeding mechanisms are arranged between the two storage boxes. The feeding mechanism includes an incomplete gear and a feeding disc. The incomplete gear is connected to the feeding disc, and the incomplete gear is connected to the mixing mechanism. The feeding disc is located between the first discharge pipe and the second discharge pipe. A discharge pipe is arranged at the lower end of the side surface of the box body, and a first valve is arranged on the outer periphery of the discharge pipe. The utility model can automatically add the proportion of the required amount of raw materials while mixing and stirring the mixture in the box body, so as to automatically batch and mix, saving manpower and improving work efficiency.

[0004] During the use of the above document, the raw materials are not stirred evenly enough, especially the raw materials near the inner wall of the box body. At the same time, during the process of discharging the raw materials, due to the accumulation of the raw materials, the discharge pipe will be blocked, affecting its use effect. Content of the Utility Model

[0005] Aiming at the deficiencies of the prior art, this application provides a mixing and stirring device for polyurethane premix, which has the advantages of uniform stirring and anti-blocking, and solves the problems raised in the background technique.

[0006] To achieve the above purpose, this application provides the following technical solution: A mixing and stirring device for polyurethane premix, including a machine body. Two scraping plates are arranged inside the machine body. Multiple scraping plates are all in contact with the inner wall of the machine body. The bottom ends of multiple scraping plates are all rotatably connected with rotating rods. Multiple sub-stirring plates distributed circumferentially are fixedly connected to the outer surfaces of multiple rotating rods. A rotating ring is rotatably connected to the inner wall of the machine body. Multiple sweeping plates are fixedly connected to the bottom surface of the rotating ring. The bottom end of the machine body is fixedly communicated with a discharge pipe, and multiple sweeping plates are all in contact with the inner wall of the discharge pipe.

[0007] Through the above solution, a rotating column is rotatably connected to the inner top wall of the body, a plurality of main stirring plates distributed in a circumferential manner are fixedly connected to the outer surface of the rotating column, and a plurality of scraping plates are fixedly connected to the rotating column.

[0008] Furthermore, the rotating column can drive a plurality of main stirring plates to stir the raw materials in the body, and through the cooperation of the auxiliary stirring plates, the raw materials can be fully mixed.

[0009] Through the above solution, a grinding ring is installed on the inner wall of the body, the bottom ends of a plurality of rotating rods are fixedly connected with grinding wheels, and a plurality of grinding wheels are in contact with the grinding ring.

[0010] Furthermore, the cooperation of the installed grinding ring and grinding wheels can cause a plurality of rotating rods to rotate during the revolution of the scraping plates, and drive a plurality of auxiliary stirring plates to stir the raw materials in the body.

[0011] Through the above solution, a pushing plate is fixedly connected to one side surface of each of the plurality of scraping plates close to each other, and a plurality of pushing plates are in contact with the grinding ring.

[0012] Furthermore, installing the pushing plates can push the raw materials in contact with the grinding ring during the revolution of the scraping plates, so that the grinding wheels can be in stable contact with the grinding ring.

[0013] Through the above solution, a stirring cage is fixedly connected to the bottom end of the rotating column, and the bottom end of the stirring cage is fixedly connected to a rotating ring.

[0014] Furthermore, installing the stirring cage can stir the raw materials at the bottom end of the body, so that the raw materials are in a flowing state in the body.

[0015] Through the above solution, a valve is installed on the outer surface of the discharge pipe, and a feed pipe is fixedly communicated with the upper surface of the body.

[0016] Furthermore, installing the valve can seal the discharge pipe to prevent leakage during the stirring of the raw materials.

[0017] Through the above solution, a plurality of shock pads are installed on the bottom surface of the body, and the plurality of shock pads are distributed in a circumferential manner.

[0018] Furthermore, installing the shock pads can increase the contact area between the body and the bottom surface, and can reduce the vibration generated during the operation of the body.

[0019] Through the above solution, a vibration motor is installed on the bottom surface of the body, and the output end of the vibration motor is in contact with the discharge pipe.

[0020] Furthermore, installing the vibration motor can generate high-frequency vibration, so that the vibration is transmitted to the discharge pipe to prevent the raw materials in the discharge pipe from being blocked.

[0021] Compared with the prior art, the technical solution of the present application has the following beneficial effects:

[0022] For the mixing and stirring device of a polyurethane combination material, by installing a scraping plate, the inner wall of the machine body can be cleaned, and it can prevent raw materials from accumulating on the inner wall of the machine body. And through the cooperation of the auxiliary stirring plate, the raw materials around the inner wall of the machine body can be evenly stirred, improving the stirring efficiency. By installing the sweeping plate in cooperation with the vibration motor, the discharge pipe can be dredged to prevent raw materials from accumulating at the discharge pipe during the discharging process, avoiding blockage of the discharge pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a cross-sectional view of the overall structure of the present application;

[0024] Figure 2 For the present application Figure 1 Schematic enlarged view of the structure at A;

[0025] Figure 3 It is a schematic diagram of the scraping plate and other structures of the present application;

[0026] Figure 4 It is a schematic diagram of the overall structure of the present application.

[0027] In the figure:

[0028] 1, machine body; 2, scraping plate; 3, rotating rod; 4, auxiliary stirring plate; 5, rotating ring; 6, sweeping plate; 7, discharge pipe; 8, rotating column; 9, main stirring plate; 10, grinding ring; 11, grinding wheel; 12, pushing plate; 13, stirring cage; 14, valve; 15, feed pipe; 16, shock pad; 17, vibration motor. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0030] Please refer to Figure 1 、 Figure 2 and Figure 3, A mixing and stirring device for a polyurethane composite material in this embodiment includes a machine body 1. Inside the machine body 1, there are two scraping plates 2. Multiple scraping plates 2 are all in contact with the inner wall of the machine body 1. The bottom ends of multiple scraping plates 2 are all rotatably connected to rotating rods 3. On the outer surfaces of multiple rotating rods 3, multiple sub-stirring plates 4 distributed circumferentially are fixedly connected. The inner wall of the machine body 1 is rotatably connected to a rotating ring 5. The bottom surface of the rotating ring 5 is fixedly connected with multiple sweeping plates 6. The bottom end of the machine body 1 is fixedly communicated with a discharge pipe 7. Multiple sweeping plates 6 are all in contact with the inner wall of the discharge pipe 7. Installing the scraping plates 2 can clean the inner wall of the machine body 1 and prevent raw materials from accumulating on the inner wall of the machine body 1. And through the cooperation of the sub-stirring plates 4, the raw materials around the inner wall of the machine body 1 can be evenly stirred, improving the stirring efficiency. Through the cooperation of installing the sweeping plates 6 and the vibration motor 17, the discharge pipe 7 can be dredged to prevent raw materials from accumulating at the discharge pipe 7 during the discharging process and avoid blocking the discharge pipe 7.

[0031] Please refer to Figure 1 , Figure 2 and Figure 3 , A rotating column 8 is rotatably connected to the inner top wall of the machine body 1. On the outer surface of the rotating column 8, multiple main stirring plates 9 distributed circumferentially are fixedly connected. Multiple scraping plates 2 are all fixedly connected to the rotating column 8. The rotating column 8 can drive multiple main stirring plates 9 to stir the raw materials in the machine body 1, and through the cooperation of the sub-stirring plates 4, they can be fully mixed. A grinding ring 10 is installed on the inner wall of the machine body 1. The bottom ends of multiple rotating rods 3 are all fixedly connected with grinding wheels 11. Multiple grinding wheels 11 are all in contact with the grinding ring 10. The cooperation of installing the grinding ring 10 and the grinding wheels 11 can make multiple rotating rods 3 rotate and drive multiple sub-stirring plates 4 to stir the raw materials in the machine body 1 during the revolution of the scraping plates 2. On one side surface of multiple scraping plates 2 close to each other, multiple pushing plates 12 are fixedly connected. Multiple pushing plates 12 are all in contact with the grinding ring 10. Installing the pushing plates 12 can push the raw materials in contact with the grinding ring 10 during the revolution of the scraping plates 2, so that the grinding wheels 11 can be in stable contact with the grinding ring 10.

[0032] Please refer to Figure 1 , Figure 2 and Figure 3, a stirring cage 13 is fixedly connected to the bottom end of the rotating column 8, and the bottom end of the stirring cage 13 is fixedly connected to the rotating ring 5. Installing the stirring cage 13 can stir the raw materials located at the bottom end of the machine body 1, so that the raw materials are in a flowing state inside the machine body 1. A valve 14 is installed on the outer surface of the discharge pipe 7, and a feed pipe 15 is fixedly communicated with the upper surface of the machine body 1. Installing the valve 14 can seal the discharge pipe 7 to prevent leakage during the stirring of the raw materials. A plurality of shock pads 16 are installed on the bottom surface of the machine body 1, and the plurality of shock pads 16 are distributed in a circular pattern. Installing the shock pads 16 can increase the contact area between the machine body 1 and the bottom surface and can reduce the vibration generated when the machine body 1 is working. A vibration motor 17 is installed on the bottom surface of the machine body 1, and the output end of the vibration motor 17 contacts the discharge pipe 7. Installing the vibration motor 17 can generate high-frequency vibrations, so that the vibrations are transmitted to the discharge pipe 7 to prevent the raw materials in the discharge pipe 7 from being blocked.

[0033] In the mixing and stirring device of a polyurethane composite material in this embodiment, by installing the scraping plate, the inner wall of the machine body can be cleaned, and raw materials can be prevented from accumulating on the inner wall of the machine body. And through the cooperation of the auxiliary stirring plates, the raw materials around the inner wall of the machine body can be evenly stirred, improving the stirring efficiency. By installing the cooperation of the sweeping plate and the vibration motor, the discharge pipe can be dredged to prevent raw materials from accumulating at the discharge pipe during the discharging process and avoid blocking the discharge pipe.

[0034] It should be noted that the upper end of the rotating column 8 is connected to an external power source.

[0035] The working principle of the above embodiment is as follows: First, when the raw materials are put into the machine body 1 through the feed pipe 15, at this time, an external power source drives the rotating column 8 to rotate. During the rotation of the rotating column 8, it can drive a plurality of main stirring plates 9 to stir the raw materials in the machine body 1. During the rotation of the rotating column 8, it can drive a plurality of scraping plates 2 to clean the inner wall of the machine body 1 to prevent the raw materials in the machine body 1 from accumulating on the inner wall of the machine body 1. When the plurality of scraping plates 2 revolve, they can drive a plurality of grinding wheels 11 to contact the grinding ring 10, thereby driving the rotating rod 3 to rotate. During the rotation of the rotating rod 3, it can drive the auxiliary stirring plates 4 to stir the raw materials around the inner wall of the machine body 1, and through the cooperation of the stirring cage 13, the raw materials in the machine body 1 can be fully stirred to make them fully mixed. When discharging the raw materials in the machine body 1, the valve 14 is opened so that the raw materials can be discharged from the machine body 1 through the discharge pipe 7. The rotation of the stirring cage 13 can drive the rotating ring 5 to rotate, so that a plurality of sweeping plates 6 can swing in the discharge pipe 7. At this time, the vibration motor 17 is started to generate high-frequency vibrations, and the vibrations are transmitted into the discharge pipe 7 to dredge the discharge pipe 7 to prevent raw materials from accumulating at the discharge pipe 7 during the discharging process and avoid blocking the discharge pipe 7.

[0036] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the said element.

[0037] Although the embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A mixing and stirring device for a polyurethane composite material, comprising a body (1), characterized in that: Two scrapers (2) are arranged inside the machine body (1), and the plurality of scrapers (2) are in contact with the inner wall of the machine body (1); the bottom ends of the plurality of scrapers (2) are rotatably connected to a rotating rod (3); the outer surfaces of the plurality of rotating rods (3) are fixedly connected to a plurality of circumferentially distributed auxiliary stirring plates (4); the inner wall of the machine body (1) is rotatably connected to a rotating ring (5); the bottom surface of the rotating ring (5) is fixedly connected to a plurality of sweeping plates (6); the bottom end of the machine body (1) is fixedly connected to a discharge pipe (7); the plurality of sweeping plates (6) are in contact with the inner wall of the discharge pipe (7).

2. A mixing and stirring device for a polyurethane composite material according to claim 1, characterized in that: The inner top wall of the machine body (1) is rotatably connected to a rotating column (8), the outer surface of the rotating column (8) is fixedly connected to a plurality of main stirring plates (9) distributed in a circumference, and the plurality of scrapers (2) are all fixedly connected to the rotating column (8).

3. The mixing and stirring device for a polyurethane composite material according to claim 1, characterized in that: A grinding ring (10) is installed on the inner wall of the machine body (1), and the bottom ends of the plurality of rotating rods (3) are fixedly connected to grinding wheels (11), and the plurality of grinding wheels (11) are in contact with the grinding ring (10).

4. The mixing and stirring device for a polyurethane composite material according to claim 1, characterized in that: A push plate (12) is fixedly connected to a side surface of the plurality of scrapers (2) that is close to each other, and the plurality of push plates (12) are in contact with the grinding ring (10).

5. The mixing and stirring device for a polyurethane composite material according to claim 2, characterized in that: The bottom end of the rotating column (8) is fixedly connected to a stirring cage (13), and the bottom end of the stirring cage (13) is fixedly connected to the rotating ring (5).

6. The mixing and stirring device for a polyurethane composite material according to claim 1, characterized in that: A valve (14) is installed on the outer surface of the discharge pipe (7), and a feed pipe (15) is fixedly connected to the upper surface of the machine body (1).

7. The mixing and stirring device for a polyurethane composite material according to claim 1, characterized in that: A plurality of shock-absorbing pads (16) are installed on the bottom surface of the machine body (1), and the plurality of shock-absorbing pads (16) are distributed in a circular pattern.

8. The mixing and stirring device for a polyurethane composite material according to claim 1, characterized in that: A vibration motor (17) is installed on the bottom surface of the machine body (1), and an output end of the vibration motor (17) is in contact with the discharge pipe (7).

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