Polyurethane apparatus defoaming structure

Abstract

The utility model relates to polyurethane processing technical field discloses a kind of polyurethane equipment defoaming structure, including bottom plate, the top of bottom plate is equipped with defoaming bucket, the bottom end four corners of defoaming bucket and the bottom plate between are equipped with support leg, the top of defoaming bucket is equipped with the bucket cover of screw thread connection, further include: stirring assembly;Stirring assembly is set on the bucket cover, and located in defoaming bucket;Knocking assembly;Knocking assembly is set on the side of bottom plate, can continuously knock the outer wall of defoaming bucket;The outer wall of defoaming bucket is wrapped with heating sheet, the top of bucket cover is equipped with and the air pipe of outside vacuum machine is connected, valve is equipped on the air pipe.The utility model has the advantages compared with prior art in that: provide a kind of polyurethane equipment defoaming structure, integrates stirring, knocking, heating and vacuum four defoaming modes, synergistic effect, significantly improve defoaming effect, ensure that defoaming is thorough.

Description

Technical Field

[0001] This utility model relates to the field of polyurethane processing technology, specifically to a defoaming structure for polyurethane equipment. Background Technology

[0002] Polyurethane materials are widely used in construction, automobiles, furniture, electronics, and many other fields due to their excellent mechanical properties, thermal insulation properties, and wear resistance. During the production of polyurethane, especially in the raw material mixing and reaction stages, a large number of bubbles are easily formed due to air entrainment during raw material stirring and gas generation during chemical reactions. If these bubbles are not effectively removed, they will seriously affect the quality of the polyurethane product.

[0003] Traditional defoaming structures in polyurethane production and other applications often rely on a single method of stirring or vacuum defoaming. Even when some structures combine both methods, there is still considerable room for improvement in defoaming efficiency. Utility Model Content

[0004] I. Technical problems to be solved

[0005] The technical problem to be solved by this utility model is to overcome the above-mentioned technical difficulties and provide a defoaming structure for polyurethane equipment that integrates four defoaming methods: stirring, tapping, heating and vacuum. These methods work synergistically to significantly improve the defoaming effect and ensure thorough defoaming.

[0006] II. Technical Solution

[0007] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: a defoaming structure for polyurethane equipment, including a base plate, a defoaming tank provided above the base plate, support legs provided between the four corners of the bottom of the defoaming tank and the base plate, and a threaded cap provided at the top of the defoaming tank, and further comprising:

[0008] A stirring assembly; the stirring assembly is mounted on the lid and located inside the defoaming tank;

[0009] Tapping component; The tapping component is located on one side of the base plate and can continuously tap the outer wall of the defoaming tank;

[0010] The outer wall of the defoaming bucket is covered with a heating element, and the top of the bucket lid is provided with an air pipe connected to an external vacuum machine, and the air pipe is equipped with a valve.

[0011] As an improvement, the mixing assembly includes a first motor and a ribbon agitator; the first motor is disposed at the top of the bucket lid, the ribbon agitator is rotatably connected to the bottom of the bucket lid, and the top of the ribbon agitator is connected to the output end of the first motor.

[0012] As an improvement, the striking assembly includes a second motor and a turntable; a fixed plate is provided on one side of the base plate, the second motor is located at the top of the base plate, and the turntable is located at the output end of the second motor; the striking assembly also includes a connecting rod and a striking block; a first connecting post is rotatably connected to the turntable, the connecting rod is rotatably located at the top of the first connecting post, a second connecting post is rotatably connected to the connecting rod, one side of the bottom end of the striking block is rotatably connected to the top end of the second connecting post, a vertical rod is provided on one side of the top end of the base plate, and a groove is provided at the top end of the vertical rod that is slidably connected to the striking block.

[0013] As an improvement, the bucket lid is provided with a through hole, and a sealing plug is provided inside the through hole.

[0014] III. Beneficial Effects

[0015] The advantages of this utility model compared with the prior art are as follows:

[0016] The defoaming process utilizes a mixing assembly with a ribbon agitator to thoroughly stir the raw materials, breaking up air bubbles through shear force. A striking assembly continuously taps the outer wall of the defoaming tank, causing bubbles adhering to the wall to detach and burst. A heating element reduces the viscosity of the raw materials, facilitating bubble rise. A vacuum unit creates a vacuum through a gas pipe, using pressure difference to cause bubbles to expand and burst. These four methods work synergistically to significantly improve the defoaming effect and ensure thorough defoaming. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of a defoaming structure for a polyurethane equipment according to this utility model. Figure 1 .

[0018] Figure 2 This is a three-dimensional schematic diagram of a defoaming structure for a polyurethane equipment according to this utility model. Figure 2 .

[0019] Figure 3 This is a cross-sectional structural diagram of a polyurethane equipment defoaming structure according to the present invention.

[0020] Figure 4 This utility model relates to a defoaming structure for polyurethane equipment. Figure 1 Enlarged detail of part A.

[0021] As shown in the figure: 1. Base plate; 2. Defoaming tank; 3. Support leg; 4. Tank lid; 5. First motor; 6. Ribbon agitator; 7. Heating element; 8. Through hole; 9. Fixing plate; 10. Second motor; 11. Turntable; 12. First connecting column; 13. Connecting rod; 14. Second connecting column; 15. Striking block; 16. Vertical rod; 17. Slide groove; 18. Air pipe. Detailed Implementation

[0022] In the description of this utility model, it should be understood that the terms "center," "lateral," "upper," "lower," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. Additionally, the term "comprising" and any variations thereof are intended to cover non-exclusive inclusion.

[0023] The present invention will now be described in further detail with reference to the accompanying drawings.

[0024] To facilitate stirring and defoaming, combined with the attached Figure 1 and attached Figure 3 A defoaming structure for a polyurethane device includes a base plate 1, a defoaming tank 2 on top of the base plate 1, support legs 3 at the four corners of the bottom of the defoaming tank 2 and between the tank and the base plate 1, and a threaded lid 4 at the top of the defoaming tank 2. The lid 4 has a through hole 8, and a sealing plug is installed inside the through hole 8. The device also includes a stirring assembly. The stirring assembly is mounted on the lid 4 and located inside the defoaming tank 2. The stirring assembly includes a first motor 5 and a ribbon agitator 6. The first motor 5 is located at the top of the lid 4, and the ribbon agitator 6 is rotatably connected to the bottom of the lid 4, with the top of the ribbon agitator 6 connected to the output end of the first motor 5. When the first motor 5 operates, it drives the ribbon agitator 6 to rotate inside the defoaming tank 2, stirring the polyurethane raw material. Alternatively, defoamer can be added to the defoaming tank 2 through the through hole 8, and mixed into the polyurethane raw material with the assistance of the ribbon agitator 6, further accelerating defoaming.

[0025] To facilitate defoaming through tapping, combined with the attached... Figure 1 and attached Figure 4The striking component is located on one side of the base plate 1 and can continuously strike the outer wall of the defoaming tank 2. The striking component includes a second motor 10 and a turntable 11. A fixed plate 9 is provided on one side of the base plate 1, the second motor 10 is located at the top of the base plate 1, and the turntable 11 is located at the output end of the second motor 10. The striking component also includes a connecting rod 13 and a striking block 15. A first connecting post 12 is rotatably connected to the turntable 11, the connecting rod 13 is rotatably located at the top of the first connecting post 12, a second connecting post 14 is rotatably connected to the connecting rod 13, one side of the bottom end of the striking block 15 is rotatably connected to the top end of the second connecting post 14, and a vertical rod 16 is provided on one side of the top end of the base plate 1. The top end of the vertical rod 16 is provided with a sliding groove 17 that is slidably connected to the striking block 15. The second motor 10 drives the turntable 11 to rotate. The first connecting post 12 on the turntable 11 moves in a circular motion with the turntable 11, which in turn drives the connecting rod 13 to move. The connecting rod 13 drives the striking block 15 to slide back and forth in the groove 17 of the vertical rod 16 through the second connecting post 14, continuously striking the outer wall of the defoaming tank 2.

[0026] To further improve defoaming efficiency, combined with the attached Figure 2 and attached Figure 3 The outer wall of the defoaming tank 2 is covered with a heating element 7, and the top of the tank lid 4 is provided with an air pipe 18 connected to an external vacuum machine. The air pipe 18 is equipped with a valve. The heating element 7 can heat the raw materials in the defoaming tank 2 to reduce the viscosity of the raw materials. The air pipe 18 is connected to an external vacuum machine. By opening the valve on the air pipe 18, a vacuum is created inside the defoaming tank 2.

[0027] In specific implementation of this utility model:

[0028] First, open the lid 4 and add the polyurethane raw material to be defoamed into the defoaming tank 2. Then, close the lid 4 and tighten it. Turn on the heating element 7 and set a suitable heating temperature using the thermostat to heat the raw material in the defoaming tank 2, reducing its viscosity.

[0029] Next, connect the air pipe 18 to the external vacuum machine, turn on the external vacuum machine, open the valve on the air pipe 18, and evacuate the inside of the defoaming tank 2 to create a vacuum environment.

[0030] Then, the defoamer is added into the defoaming tank 2 through the through hole 8, and the first motor 5 is started. The first motor 5 drives the ribbon agitator 6 to rotate and stir the raw materials, and the defoamer is used to defoam the raw materials.

[0031] Subsequently, the second motor 10 is started, which drives the turntable 11 to rotate. The first connecting column 12 on the turntable 11 moves in a circular motion with the turntable 11, which in turn drives the connecting rod 13 to move. The connecting rod 13 drives the striking block 15 to slide back and forth in the groove 17 of the vertical rod 16 through the second connecting column 14, continuously striking the outer wall of the defoaming tank 2, causing the bubbles attached to the tank wall to detach and break. Under the synergistic effect of stirring, striking, heating and vacuum, the bubbles in the raw materials quickly escape and break, achieving efficient defoaming.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

[0033] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A defoaming structure for a polyurethane equipment, comprising a base plate (1), a defoaming tank (2) above the base plate (1), support legs (3) between the four bottom corners of the defoaming tank (2) and the base plate (1), and a threaded lid (4) at the top of the defoaming tank (2), characterized in that, Also includes: Stirring assembly; The stirring assembly is mounted on the lid (4) and located inside the defoaming tank (2); A striking component is provided on one side of the base plate (1) and can continuously strike the outer wall of the defoaming tank (2). The outer wall of the defoaming bucket (2) is covered with a heating element (7), and the top of the bucket lid (4) is provided with an air pipe (18) connected to an external vacuum machine, and a valve is provided on the air pipe (18).

2. The defoaming structure for polyurethane equipment according to claim 1, characterized in that: The mixing assembly includes a first motor (5) and a ribbon mixer (6); the first motor (5) is located at the top of the bucket cover (4), the ribbon mixer (6) is rotatably connected to the bottom of the bucket cover (4), and the top of the ribbon mixer (6) is connected to the output end of the first motor (5).

3. The defoaming structure for polyurethane equipment according to claim 1, characterized in that: The striking assembly includes a second motor (10) and a turntable (11); a fixing plate (9) is provided on one side of the base plate (1), the second motor (10) is located at the top of the base plate (1), and the turntable (11) is located at the output end of the second motor (10); The striking assembly also includes a connecting rod (13) and a striking block (15); the turntable (11) is provided with a first connecting post (12) rotatably connected, the connecting rod (13) is rotatably disposed at the top of the first connecting post (12), the connecting rod (13) is provided with a second connecting post (14) rotatably connected, the bottom end of the striking block (15) is rotatably connected to the top of the second connecting post (14), the top end of the base plate (1) is provided with a vertical rod (16), the top of the vertical rod (16) is provided with a groove (17) slidably connected to the striking block (15).

4. The defoaming structure for polyurethane equipment according to claim 1, characterized in that: The barrel lid (4) is provided with a through hole (8), and a sealing plug is provided inside the through hole (8).

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