Stirring device for polyurethane foaming machine

Abstract

The utility model relates to the technical field of stirring, and discloses a stirring device for a polyurethane foaming machine, the upper half part of a central shaft is fixedly connected with a fixing ring, a driving gear is fixedly mounted at the lower end, corresponding to the fixing ring, of the upper half part of the central shaft, and the side end of the fixing ring is fixedly connected with a plurality of extension columns; the other end of the extension column is movably connected with a clamping column, the other end of the clamping column is movably connected with a linkage gear, the lower end of the center of the linkage gear is fixedly connected with an auxiliary column, and through the staggered stirring design of the center shaft and the auxiliary column and stirring blades and second stirring blades carried by the center shaft and the auxiliary column, all-directional and efficient mixing of materials in a three-dimensional space is achieved; compared with the prior art, the mixing uniformity is remarkably improved, so that the production efficiency is improved, the problem that materials remain on the inner wall of the box body is ingeniously solved through the design of the scraping plates, the scraping plates can automatically scrape and push the residual materials to enter a stirring area or a discharging opening along with rotation of the center shaft, the requirement for manual cleaning is reduced, and the maintenance cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of mixing technology, specifically a mixing device for a polyurethane foaming machine. Background Technology

[0002] Polyurethane foaming machines are widely used in the manufacture of furniture, building materials, and automotive interiors. Their working principle involves mixing polyols and isocyanates in a certain proportion, followed by rapid foaming under the action of a catalyst and foaming agent. As one of the core components of the foaming machine, the stirring device directly affects the uniformity of the raw material mixing and the foaming effect. Traditional stirring devices suffer from problems such as low stirring efficiency, uneven mixing, and the creation of dead zones, resulting in unstable foamed product quality and low production efficiency. Therefore, we propose a stirring device for polyurethane foaming machines. Utility Model Content

[0003] In view of the shortcomings of the prior art, this utility model provides a stirring device for a polyurethane foaming machine, which solves the above-mentioned problems.

[0004] To achieve the above-mentioned objectives, this utility model provides the following technical solution: a stirring device for a polyurethane foaming machine, comprising a base, side plates mounted at both ends of the base, a mounting platform disposed between the two side plates, a housing disposed at the lower end of the mounting platform, and a discharge port disposed at the side end of the housing, further comprising:

[0005] The gear ring is fixedly connected to the center of the upper end of the mounting platform with a No. 2 motor. The lower end of the No. 2 motor is connected to the central shaft. The upper half of the central shaft is fixedly connected to a fixed ring, and the upper half of the central shaft is fixedly mounted with a drive gear corresponding to the lower end of the fixed ring. Multiple extension columns are fixedly connected to the side end of the fixed ring, and the other end of the extension columns is movably connected to a clamping column. The other end of the clamping column is movably connected to a linkage gear. The lower end of the center of the linkage gear is fixedly connected to an auxiliary column, and the outer side of the linkage gear meshes with the gear ring, while the inner side of the linkage gear meshes with the drive gear.

[0006] A rotating assembly, installed inside the mounting platform, is a structure used to control the rotation of the auxiliary column.

[0007] Preferably, a storage box is fixedly installed on the upper end of the mounting platform, a feed pipe is installed on one end of the storage box, the other end of the feed pipe extends into the inside of the cover plate, the cover plate is installed on the upper end of the box body, multiple arc plates are installed at the center of the cover plate, an auxiliary column is fixedly installed at the center of the arc plates, and a positioning ring is fixedly connected at the center of the lower end of the mounting platform, and a toothed ring is installed inside the positioning ring.

[0008] Preferably, the lower half of the central shaft is fixedly connected to the second stirring blade, and one end of the central shaft is fixedly connected to the bottom ring, the side end of the bottom ring is fixedly connected to the connecting column, the other end of the connecting column is connected to the scraper, and the lower half of the multiple auxiliary columns is fixedly connected to the stirring blade.

[0009] Preferably, the central shaft and the auxiliary column are driven by independent power sources, and the stirring blade and the second stirring blade are arranged in an alternating pattern.

[0010] Preferably, a central ring is fixedly connected to the center of the central shaft, and a limiting post is fixedly connected to the side end of the central ring. The other end of the limiting post is fixedly connected to a limiting ring, and the limiting ring is installed on the surface of the auxiliary post.

[0011] Preferably, the upper end of the side plate is fixedly connected to a motor, and the lower end of the motor extends into the interior of the side plate and connects to a threaded tube. The surface of the threaded tube is movably connected to a connecting block, and the other end of the connecting block is fixedly connected to a mounting platform.

[0012] Preferably, the rotating assembly includes a second motor, a central shaft, a fixed ring, a drive gear, an extension column, a clamping column, a linkage gear, an auxiliary column, and a gear ring. The second motor is fixedly connected to the upper center of the mounting platform, and the lower end of the second motor is connected to the central shaft. The upper half of the central shaft is fixedly connected to the fixed ring, and the drive gear is fixedly installed on the upper half of the central shaft corresponding to the lower end of the fixed ring. Multiple extension columns are fixedly connected to the side end of the fixed ring, and the other end of the extension columns is movably connected to the clamping column. The other end of the clamping column is movably connected to the linkage gear. The lower end of the center of the linkage gear is fixedly connected to the auxiliary column, and the outer side of the linkage gear meshes with the gear ring, while the inner side of the linkage gear meshes with the drive gear.

[0013] Compared with the prior art, this utility model provides a stirring device for a polyurethane foaming machine, which has the following beneficial effects:

[0014] 1. Through the staggered mixing design of the central shaft and auxiliary columns, as well as the mixing blades and secondary mixing blades carried by each, the material is mixed in an all-round and efficient manner in three-dimensional space. This design significantly improves the mixing uniformity and shortens the mixing time, thereby improving production efficiency. The design of the scraper cleverly solves the problem of material residue on the inner wall of the box. As the central shaft rotates, the scraper can automatically scrape off and push the residual material into the mixing area or the discharge port, reducing the need for manual cleaning, lowering maintenance costs, and ensuring the purity of the product.

[0015] 2. The equipment uses an independent power supply to drive the central shaft and auxiliary column, allowing users to adjust the stirring speed and intensity according to actual needs and achieve precise control. The modular design of the equipment makes it easy to adapt to the processing needs of different materials, improving the versatility and flexibility of the equipment. Through the precise cooperation of components such as positioning ring, central ring, limit column and limit ring, the stability and accuracy of the central shaft and auxiliary column during high-speed rotation are ensured. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the present invention;

[0017] Figure 2 This is a partial cross-sectional view of the present invention;

[0018] Figure 3 This utility model Figure 1 Partial schematic diagram;

[0019] Figure 4 This is a schematic diagram of the rotating component of this utility model;

[0020] Figure 5 This is a top view of the rotating component of this utility model;

[0021] Figure 6 This is a schematic diagram of the limiting ring of this utility model.

[0022] In the diagram: 1. Base; 2. Side plate; 3. Mounting platform; 4. Box body; 5. Storage box; 6. Feed pipe; 7. Motor; 8. Threaded pipe; 9. Connecting block; 10. Discharge port; 11. Cover plate; 12. Positioning ring; 13. Motor No. 2; 14. Central shaft; 15. Fixing ring; 16. Drive gear; 17. Extension column; 18. Clamping column; 19. Linkage gear; 20. Auxiliary column; 21. Stirring blade; 22. Stirring blade No. 2; 23. Bottom ring; 24. Connecting column; 25. Scraper; 26. Limiting column; 27. Limiting ring; 28. Arc plate; 29. ​​Toothed ring; 30. Central ring. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-3A mixing device for a polyurethane foaming machine includes a base 1, side plates 2 mounted at both ends of the base 1, a mounting platform 3 disposed between the two side plates 2, a housing 4 disposed at the lower end of the mounting platform 3, and a discharge port 10 disposed at the side end of the housing 4. The device also includes a gear ring. A second motor 13 is fixedly connected to the center of the upper end of the mounting platform 3. The lower end of the second motor 13 is connected to a central shaft 14. A fixing ring 15 is fixedly connected to the upper half of the central shaft 14, and a drive gear 16 is fixedly mounted on the upper half of the central shaft 14 corresponding to the lower end of the fixing ring 15. The side end of the fixing ring 15 is fixedly connected to... Multiple extension columns 17 are provided, with the other end of each extension column 17 movably connected to a clamping column 18. The other end of each clamping column 18 is movably connected to a linkage gear 19. An auxiliary column 20 is fixedly connected to the lower end of the center of the linkage gear 19. The outer side of the linkage gear 19 is meshed with a gear ring 29, and the inner end of the linkage gear 19 is meshed with a drive gear 16. A rotating assembly is installed inside the mounting platform 3 and is used to control the rotation of the auxiliary column 20. Multiple stirring blades stir the original liquid to reduce the dead angle of the original liquid stirring. At the same time, the scraper 25 scrapes off the raw material adhering to the inner wall of the box 4.

[0025] Furthermore, a storage box 5 is fixedly installed on the upper end of the mounting platform 3. A feed pipe 6 is installed on one end of the storage box 5, and the other end of the feed pipe 6 extends into the interior of the cover plate 11. The cover plate 11 is installed on the upper end of the box body 4, and multiple arc-shaped plates 28 are installed at the center of the cover plate 11. An auxiliary column 20 is fixedly installed at the center of the arc-shaped plate 28. A positioning ring 12 is fixedly connected at the lower center of the mounting platform 3, and a toothed ring 29 is installed inside the positioning ring 12. The auxiliary column 20 is fixedly connected to the arc-shaped plate 28. One end of the arc-shaped plate 28 is movably engaged with the cover plate 11. When the arc-shaped plate 28 moves up and down, it synchronously drives the cover plate 11 up and down. When the arc-shaped plate 28 rotates, the position of the cover plate 11 remains unchanged.

[0026] Furthermore, the lower half of the central shaft 14 is fixedly connected to the second stirring blade 22, and one end of the central shaft 14 is fixedly connected to the bottom ring 23. The side end of the bottom ring 23 is fixedly connected to the connecting column 24, and the other end of the connecting column 24 is connected to the scraper 25. The lower half of the multiple auxiliary columns 20 is fixedly connected to the stirring blade 21. The central shaft 14 rotates at a high frequency, and at the same time, the central shaft 14 carries the second stirring blade 22 and the scraper 25 to maintain a high frequency rotation. The stirring blade 21 is a large-diameter stirring blade.

[0027] Furthermore, the central shaft 14 and the auxiliary column 20 are driven by independent power sources, and the stirring blades 21 and the second stirring blade 22 are arranged in an alternating manner. The central shaft 14 and the auxiliary rod 20 can be independently adjusted in speed, and the multiple stirring blades 21 maintain a state of non-interference with the second stirring blade 22 when they rotate.

[0028] Furthermore, a central ring 30 is fixedly connected to the center of the central shaft 14, and a limiting post 26 is fixedly connected to the side end of the central ring 30. A limiting ring 27 is fixedly connected to the other end of the limiting post 26, and the limiting ring 27 is installed on the surface of the auxiliary post 20. The central ring 30 and the limiting ring 27 limit the central shaft 14 and the auxiliary rod 20 to prevent misalignment of the central shaft 14 and the auxiliary rod 20.

[0029] Furthermore, the upper end of the side plate 2 is fixedly connected to the motor 7, and the lower end of the motor 7 extends into the interior of the side plate 2 and connects to the threaded tube 8. The surface of the threaded tube 8 is movably connected to the connecting block 9, and the other end of the connecting block 9 is fixedly connected to the mounting platform 3. The height of the mounting platform 3 is adjusted by adjusting the motor 7, and the threaded tubes 8 on both sides maintain synchronous speed.

[0030] Furthermore, the rotating assembly includes a second motor 13, a central shaft 14, a retaining ring 15, a drive gear 16, an extension column 17, a clamping column 18, a linkage gear 19, an auxiliary column 20, and a gear ring 29. The second motor 13 is fixedly connected to the upper center of the mounting platform 3. The lower end of the second motor 13 is connected to the central shaft 14. The upper half of the central shaft 14 is fixedly connected to the retaining ring 15, and the drive gear 16 is fixedly mounted on the upper half of the central shaft 14 corresponding to the lower end of the retaining ring 15. Multiple gears are fixedly connected to the side ends of the retaining ring 15. An extension post 17 is provided, with its other end movably connected to a clamping post 18. The other end of the clamping post 18 is movably connected to a linkage gear 19. An auxiliary post 20 is fixedly connected to the lower end of the center of the linkage gear 19. The outer side of the linkage gear 19 is meshed with a gear ring 29, and the inner end of the linkage gear 19 is meshed with a drive gear 16. By controlling the second motor 13, the rotational speed of the linkage gear 19 around the drive gear 16 is adjusted. The extension post 17 and the clamping post 18 maintain the same spacing between the multiple linkage gears 19.

[0031] Working principle: The raw materials are poured into the box 4, which moves onto the base 1. The motor 7 is turned on, driving the threaded pipe 8 to rotate. The threaded pipe 8 drives the connecting block 9 to move downwards, which in turn drives the mounting platform 3 to move downwards. The position of the mounting platform 3 is adjusted, and the mounting platform 3, along with the stirring blade 21, is lowered into the box 4. At the same time, the center of the box 4 is aligned with the second stirring blade 22. The mounting platform 3 descends and, along with the cover plate 11, is placed on top of the box 4. The storage tank 5 transmits the liquid to be added into the box 4 through the feed pipe 6. The power supply to the stirring blades 21 and 22 is turned on, and the stirring blades 21 and 22 stir the raw materials. The second motor 13 is turned on, driving the central shaft 14 to rotate. The rotation of the central shaft 14 drives the drive gear 16 to rotate, which in turn drives the... The linkage gear 19 rotates, and when the linkage gear 19 rotates, it synchronously drives the auxiliary rod 20 to move. The moving rod 20 moves around the central shaft 14, and the synchronous stirring blade 21 rotates around the second stirring blade 22. When the central shaft 14 rotates, it synchronously drives the extension column 17 to move. The extension column 17 drives the clamping column 18 to move. The shapes of the extension column 17 and the clamping column 18 remain unchanged. The extension column 17 and the clamping column 18 keep the distance between the multiple linkage gears 19. The gear ring 29 restricts the multiple linkage gears 19, so that the linkage gears 19 and the drive gear 16 rotate at the same height. The stirring blade 21 and the second stirring blade 22 keep running in an alternating pattern. The scraper 25 scrapes off the raw material attached to the inner wall of the box 4 to prevent the raw material from adhering to the inner wall and causing dead corners in the stirring. The central ring 30 and the limiting ring 27 restrict the auxiliary rod 20 and the central shaft 14.

[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.

Claims

1. A mixing device for a polyurethane foaming machine, comprising a base (1), side plates (2) mounted at both ends of the base (1), a mounting platform (3) disposed between the two side plates (2), a housing (4) disposed at the lower end of the mounting platform (3), and a discharge port (10) disposed at the side end of the housing (4), characterized in that, Also includes: The gear ring is fixedly connected to the center of the upper end of the mounting platform (3) to the No. 2 motor (13). The lower end of the No. 2 motor (13) is connected to the central shaft (14). The upper half of the central shaft (14) is fixedly connected to the fixing ring (15). The upper half of the central shaft (14) is fixedly installed with the drive gear (16) corresponding to the lower end of the fixing ring (15). The side end of the fixing ring (15) is fixedly connected to multiple extension columns (17). The other end of the extension column (17) is movably connected to the clamping column (18). The other end of the clamping column (18) is movably connected to the linkage gear (19). The lower end of the center of the linkage gear (19) is fixedly connected to the auxiliary column (20). The outer side of the linkage gear (19) is meshed with the gear ring (29). The inner end of the linkage gear (19) is meshed with the drive gear (16). A rotating assembly, installed inside the mounting platform (3), is a structure used to control the rotation of the auxiliary column (20).

2. The stirring device for a polyurethane foaming machine according to claim 1, characterized in that: The upper end of the mounting platform (3) is fixedly installed with a storage box (5), one end of the storage box (5) is installed with a feed pipe (6), the other end of the feed pipe (6) extends into the inside of the cover plate (11), and the cover plate (11) is installed on the upper end of the box body (4), and multiple arc plates (28) are installed at the center of the cover plate (11), and auxiliary columns (20) are fixedly installed at the center of the arc plates (28), and a positioning ring (12) is fixedly connected at the lower center of the mounting platform (3), and a toothed ring (29) is installed inside the positioning ring (12).

3. The stirring device for a polyurethane foaming machine according to claim 1, characterized in that: The lower half of the central shaft (14) is fixedly connected to the second stirring blade (22), and one end of the central shaft (14) is fixedly connected to the bottom ring (23). The side end of the bottom ring (23) is fixedly connected to the connecting column (24). The other end of the connecting column (24) is connected to the scraper (25), and the lower half of the multiple auxiliary columns (20) is fixedly connected to the stirring blade (21).

4. The stirring device for a polyurethane foaming machine according to claim 1, characterized in that: The central shaft (14) and the auxiliary column (20) are driven by independent power sources, and the stirring blade (21) and the second stirring blade (22) are arranged in an alternating manner.

5. A stirring device for a polyurethane foaming machine according to claim 1, characterized in that: A central ring (30) is fixedly connected at the center of the central shaft (14), and a limiting post (26) is fixedly connected to the side end of the central ring (30), and a limiting ring (27) is fixedly connected to the other end of the limiting post (26), and the limiting ring (27) is installed on the surface of the auxiliary post (20).

6. A stirring device for a polyurethane foaming machine according to claim 1, characterized in that: The upper end of the side plate (2) is fixedly connected to the motor (7), and the lower end of the motor (7) extends into the interior of the side plate (2) and is connected to the threaded tube (8). The surface of the threaded tube (8) is movably connected to the connecting block (9), and the other end of the connecting block (9) is fixedly connected to the mounting platform (3).

7. A stirring device for a polyurethane foaming machine according to claim 1, characterized in that: The rotating assembly includes a second motor (13), a central shaft (14), a fixed ring (15), a drive gear (16), an extension column (17), a clamping column (18), a linkage gear (19), an auxiliary column (20), and a gear ring (29).

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