A mixing device for polyurethane foam production

Abstract

This utility model relates to the technical field of mixing devices, specifically a mixing device for polyurethane foam production. It includes a base plate and a mixing drum. A back plate is mounted on the upper part of the base plate. A sliding rod and a rotating wheel are connected to the front side of the back plate. A slider is connected to the sliding rod. Two rotating wheels are connected between them by a conveyor belt. A clamping block is mounted on the conveyor belt and connected to the slider. A support rod and a base are hinged together on the other side of the slider via a connecting frame. Two connecting discs are mounted at the end of the support rod. Several connecting rods are rotatably connected to the inner side of the connecting discs, and stirring blades are sleeved on the connecting rods. This mixing device for polyurethane foam production, through the transmission structure of the rotating wheel, drives the support rod to move up and down, allowing the support rod to adjust the depth of the connecting discs and stirring blades inside the mixing drum. This not only achieves high-efficiency mixing of the raw materials inside the mixing drum, but also allows the end of the support rod to be moved out of the mixing drum by turning the support rod after mixing.

Description

Technical Field

[0001] This utility model relates to the technical field of mixing devices, specifically a mixing device for polyurethane foam production. Background Technology

[0002] Utility model patent CN202222757333.1 discloses a mixing device for producing high-porosity polyurethane foam, which improves upon existing polyurethane foam mixing devices that suffer from poor vibration damping, causing inconvenience to users. The device includes a base and a reaction vessel mounted on the base. A base plate and a fixing block are installed on the inner bottom wall of the base, with their bottoms fixedly connected to the base. A shock absorber is fixedly installed on the top of the base plate, and a top plate is fixedly installed on top of the shock absorber. A support plate is fixedly installed on top of the top plate, and the top of the support plate is fixedly connected to the reaction vessel. A first spring is fixedly installed on one side of the fixing block. During operation, the device generates vibration, causing stress on the support plate. The vibration is reduced by the shock absorber, and further reduction is achieved through the interaction of a connecting rod, a moving block, and the first spring.

[0003] The mixing device's stirring assembly and reactor are an integrated structure. However, the polyurethane foam will expand after mixing. The expanded polyurethane foam is easy to adhere to the surface of the stirring assembly, which will not only block the discharge but also cause problems that are difficult to clean.

[0004] To address the aforementioned issues, we have made improvements and proposed a mixing device for polyurethane foam production. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] This utility model provides a mixing device for polyurethane foam production, including a base plate and a mixing tank. A back plate is installed on the upper part of the base plate, and a slide rod and a wheel are connected to the front side of the back plate.

[0007] A slider is connected to the slide rod;

[0008] The rotating wheel is configured as two, and a conveyor belt is connected between the two rotating wheels. The conveyor belt is provided with clamping blocks, and the clamping blocks are connected to the slider.

[0009] The other side of the slider is provided with a support rod and a base that are hinged together by a connecting frame;

[0010] The support rod has two connecting discs at its end, and several connecting rods are rotatably connected to the inner side of the connecting discs. A stirring plate is sleeved on the connecting rod.

[0011] As a preferred embodiment of this utility model, a second servo motor is installed on the rear side of the back plate, and the output shaft of the second servo motor is coaxially and fixedly connected to one of the rotating wheels.

[0012] As a preferred embodiment of this utility model, the inner side of the clamping block engages with the conveyor belt, the clamping block and the slider are fixedly connected by bolts, the other side of the slider is fixedly connected to a fixing member by bolts, and the base is installed on the upper surface of the fixing member.

[0013] As a preferred embodiment of this utility model, the bottom of the connecting frame is welded to the base, and the bottom of one end of the support rod is hinged to the connecting frame by a torsion spring. The bottom of that end of the support rod is provided with a groove corresponding to the base, so that the connection between the support rod and the base remains vertical.

[0014] As a preferred embodiment of this utility model, a first servo motor is installed at the other end of the support rod, and a rotating rod is coaxially fixedly connected to the output shaft of the first servo motor. Two sleeve blocks are sleeved on the rotating rod, and both sleeve blocks are coaxially fixedly connected to the rotating rod.

[0015] In a preferred embodiment of this utility model, the connecting disc and the sleeve block correspond one-to-one, and the end of the connecting rod is rotatably connected to the connecting disc.

[0016] In a preferred embodiment of this invention, the bottom of the mixing tank is fixedly connected to the base plate by bolts.

[0017] The beneficial effects of this utility model are as follows: This mixing device for polyurethane foam production drives the support rod to move up and down through the transmission structure of the rotating wheel, so that the support rod can adjust the depth of the connecting plate and the stirring plate inside the mixing barrel. This not only achieves high-efficiency mixing of the raw materials inside the mixing barrel, but also allows the end of the support rod to be moved out of the mixing barrel by turning the support rod after mixing. This not only realizes the separate connection between the mixing component and the mixing barrel, avoiding the barrel shaking during the mixing process, but also avoids the foaming process being affected by the mixing component, and facilitates the cleaning of the connecting plate and the stirring plate. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the support rod and connecting plate structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the connecting disc structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the connection structure between the support rod and the base of this utility model;

[0023] Figure 5 This is a schematic diagram of the conveyor belt structure of this utility model;

[0024] In the diagram: 1. Base plate; 2. Mixing tank; 3. Back plate; 4. Support rod; 5. First servo motor; 6. Connecting plate; 7. Slide rod; 8. Second servo motor; 9. Rotary wheel; 10. Conveyor belt; 11. Clamping block; 12. Connecting rod; 13. Mixing blade; 14. Fixing component; 15. Base; 16. Connecting frame; 17. Sleeve block; 18. Slider; 19. Rotating rod. Detailed Implementation

[0025] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0026] Example: Figure 1-5 As shown, a mixing device for polyurethane foam production includes a base plate 1 and a mixing tank 2. A back plate 3 is installed on the upper part of the base plate 1, and a slide bar 7 and a rotating wheel 9 are connected to the front side of the back plate 3.

[0027] A slider 18 is connected to the slider 7;

[0028] Two rotating wheels 9 are provided, and a conveyor belt 10 is connected between the two rotating wheels 9. A clamping block 11 is provided on the conveyor belt 10, and the clamping block 11 is connected to the slider 18.

[0029] On the other side of the slider 18, there is a support rod 4 and a base 15 that are hinged together by a connecting frame 16;

[0030] Two connecting discs 6 are provided at the end of the support rod 4. Several connecting rods 12 are rotatably connected to the inner side of the connecting discs 6, and stirring plates 13 are sleeved on the connecting rods 12.

[0031] A second servo motor 8 is installed on the rear side of the back plate 3, and the output shaft of the second servo motor 8 is coaxially and fixedly connected to one of the rotating wheels 9.

[0032] The inner side of the clamping block 11 engages with the conveyor belt 10. The clamping block 11 and the slider 18 are fixedly connected by bolts. The other side of the slider 18 is fixedly connected to the fixing member 14 by bolts. The base 15 is installed on the upper surface of the fixing member 14.

[0033] The second servo motor 8 drives the conveyor belt 10 to move via the wheel 9, which in turn drives the clamping block 11 to move, thereby adjusting the height of the fixing part 14 and the base 15, and thus adjusting the depth of the end of the support rod 4 into the mixing barrel 2, thereby improving the mixing efficiency.

[0034] The bottom of the connecting frame 16 is welded to the base 15. The bottom of one end of the support rod 4 is hinged to the connecting frame 16 by a torsion spring. The bottom of this end of the support rod 4 is provided with a groove corresponding to the base 15, so that the connection between the support rod 4 and the base 15 remains vertical.

[0035] Bending the support rod 4 towards the groove side causes the support rod 4 to rotate around the base 15 as the fulcrum. At this time, the angle between the support rod 4 and the base 15 increases, and the support rod 4 tilts outward until the connecting plate 6 is separated from the inner area of ​​the mixing tank 2. This prevents the connecting plate 5 from affecting the overall foaming effect during the foaming process, and also prevents the polyurethane foam after foaming from blocking the connection gap of the connecting plate 5 and causing cleaning difficulties.

[0036] Similarly, during the mixing process, the support rod 4 and the base 15 are kept vertical. At this time, the connecting plate 5 is located inside the mixing tank 2, and the base 15 provides support for the support rod 4.

[0037] The other end of the support rod 4 is equipped with a first servo motor 5. A rotating rod 19 is coaxially fixedly connected to the output shaft of the first servo motor 5. Two sleeve blocks 17 are sleeved on the rotating rod 19, and both sleeve blocks 17 are coaxially fixedly connected to the rotating rod 19.

[0038] The connecting plate 6 corresponds one-to-one with the sleeve block 17, and the end of the connecting rod 12 is rotatably connected to the connecting plate 6.

[0039] The first servo motor 5 drives the connecting plate 5 to rotate, stirring the polyurethane foam mixture inside the mixing tank 2. During this process, the mixing efficiency can be improved by adjusting the depth of the end of the support rod 4 into the mixing tank 2.

[0040] The bottom of the mixing tank 2 is fixedly connected to the base plate 1 by bolts.

[0041] Working principle: In use, the support rod 4 is bent towards the groove side, causing it to rotate around the base 15. This increases the angle between the support rod 4 and the base 15, causing the support rod 4 to tilt outward until the connecting plate 6 is disengaged from the mixing tank 2. This prevents the connecting plate 5 from affecting the overall foaming effect during the foaming process and also prevents the foamed polyurethane foam from clogging the connection gaps of the connecting plate 5, making cleaning difficult. Similarly, during the mixing process, the support rod 4 and the base 15 are kept vertical. At this time, the connecting plate 5 is located inside the mixing tank 2, and the base 15 provides support for the support rod 4. The first servo motor 5 drives the connecting plate 5 to rotate, stirring the polyurethane foam mixture inside the mixing tank 2. During this process, the mixing efficiency can be improved by adjusting the depth of the end of the support rod 4 into the mixing tank 2.

[0042] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A mixing device for polyurethane foam production, comprising a base plate (1) and a mixing bowl (2), characterized in that, A back plate (3) is installed on the upper part of the base plate (1), and a slide rod (7) and a rotating wheel (9) are connected to the front side of the back plate (3); A slider (18) is connected to the slider (7); The rotating wheel (9) is configured as two, and a conveyor belt (10) is connected between the two rotating wheels (9). A clamp (11) is provided on the conveyor belt (10), and the clamp (11) is connected to the slider (18). The other side of the slider (18) is provided with a support rod (4) and a base (15) hinged together by a connecting frame (16); The support rod (4) has two connecting discs (6) at its end. Several connecting rods (12) are rotatably connected to the inner side of the connecting discs (6). A stirring plate (13) is sleeved on the connecting rod (12).

2. A mixing device for producing polyurethane foam according to claim 1, characterized in that A second servo motor (8) is installed on the rear side of the back plate (3), and the output shaft of the second servo motor (8) is coaxially and fixedly connected to one of the rotating wheels (9).

3. A mixing device for producing polyurethane foam according to claim 1, wherein The inner side of the clamp (11) engages with the conveyor belt (10), the clamp (11) and the slider (18) are fixedly connected by bolts, the other side of the slider (18) is fixedly connected to a fixing member (14) by bolts, and the base (15) is installed on the upper surface of the fixing member (14).

4. The mixing device for producing polyurethane foam according to claim 1, wherein The bottom of the connecting frame (16) is welded to the base (15), and the bottom of one end of the support rod (4) is hinged to the connecting frame (16) by a torsion spring. The bottom of the support rod (4) at this end is provided with a groove corresponding to the base (15), so that the connection between the support rod (4) and the base (15) remains vertical.

5. The mixing device for producing polyurethane foam according to claim 1, wherein The other end of the support rod (4) is equipped with a first servo motor (5). A rotating rod (19) is coaxially fixedly connected to the output shaft of the first servo motor (5). Two sleeves (17) are sleeved on the rotating rod (19), and both sleeves (17) are coaxially fixedly connected to the rotating rod (19).

6. A compounding device for polyurethane foam production according to claim 5, characterized in that The connecting disc (6) corresponds one-to-one with the sleeve block (17), and the end of the connecting rod (12) is rotatably connected to the connecting disc (6).

7. A mixing device for producing polyurethane foam according to claim 1, wherein The bottom of the mixing tank (2) is fixedly connected to the base plate (1) by bolts.

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