A raw material mixing and uniform device of a full-automatic intermittent foaming machine

Abstract

The utility model relates to high polymer material processing technical field discloses a kind of raw material mixing uniform devices of full-automatic intermittent foaming machine, including raw material box, the middle part of raw material box is equipped with mixing mechanism, the top of raw material box is fixedly connected with box cover, the bottom of box cover is fixedly connected with sealing gasket, the bottom of sealing gasket is equipped with cleaning assembly, the mixing mechanism includes stirring assembly and scraping assembly, the stirring assembly includes driving motor, the top of the box cover is fixedly connected in the driving motor, the output of driving motor is fixedly connected with shaft, in the utility model, driving motor drives double helix stirring blade one and single helix stirring blade two form convection circulation, and the raw material of different physical properties such as polyol, isocyanate, catalyst, blowing agent is quickly, uniformly mixed to dispersed state, so that different components are fully contacted.

Description

Technical Field

[0001] This utility model relates to the field of polymer material processing technology, and in particular to a raw material mixing uniform device for a fully automatic intermittent foaming machine. Background Technology

[0002] Fully automatic intermittent foaming machines are key equipment in the field of polymer material processing. They are mainly used to produce materials such as polyurethane foam and polystyrene foam, and are widely used in industries such as building insulation, automotive interiors, and home appliance manufacturing. They mix various raw materials such as polyols, isocyanates, catalysts, and foaming agents in proportion and form foam structures through chemical reactions. Therefore, an efficient raw material mixing device is the core component of the foaming machine.

[0003] However, in existing technologies, traditional mixing structures are prone to stratification and require a long mixing time to achieve uniform mixing. In terms of cleaning and maintenance, residues on the back of the mixing blades and at the corners of the equipment are not thoroughly removed, and each cleaning requires disassembling the mixing components, which leads to reduced equipment operation and utilization. Moreover, after the residual raw materials solidify on the inner wall of the equipment, they will gradually form a scale layer, which will also affect the subsequent mixing effect, requiring frequent cleaning and increasing production costs. To address these issues, a raw material uniform mixing device for a fully automatic intermittent foaming machine is proposed. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a raw material mixing uniformity device for a fully automatic intermittent foaming machine, which aims to improve the problem of incomplete internal cleaning of equipment in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A raw material mixing device for a fully automatic intermittent foaming machine includes a raw material box, a mixing mechanism installed in the middle of the raw material box, a box cover fixedly connected to the top of the raw material box, a sealing gasket fixedly connected to the bottom of the box cover, and a cleaning component installed at the bottom of the sealing gasket.

[0007] The mixing mechanism includes a stirring assembly and a scraping assembly. The stirring assembly includes a drive motor, which is fixedly connected to the top of the box cover. A rotating shaft is fixedly connected to the output end of the drive motor. A second spiral stirring blade is rotatably connected to the outside of the rotating shaft. Two first spiral stirring blades are rotatably connected to the outside of the rotating shaft.

[0008] As a further description of the above technical solution:

[0009] The scraping assembly includes a fixed shaft, which is fixedly connected to the outside of the rotating shaft, and a scraper is fixedly connected to the outside of the fixed shaft.

[0010] As a further description of the above technical solution:

[0011] A flange is fixedly connected to the outside of the rotating shaft, a screw is threaded into the middle of the flange, and a nut is threaded into the outside of the screw.

[0012] As a further description of the above technical solution:

[0013] The cleaning assembly includes a second connecting water pipe, which is fixedly connected to the bottom of the sealing gasket. A water outlet is provided in the middle of the tank cover. Multiple nozzles are fixedly connected to the bottom of the second connecting water pipe. A first connecting water pipe is provided in the middle of the tank cover. The second connecting water pipe is connected to the water outlet through the first connecting water pipe.

[0014] As a further description of the above technical solution:

[0015] A circulation pump is fixedly connected to the outside of the water pipe.

[0016] As a further description of the above technical solution:

[0017] The raw material box is fixedly connected to an outer box, and the outer box is fixedly connected to a water inlet.

[0018] As a further description of the above technical solution:

[0019] The sealing gasket is fixedly connected to the middle of the inlet, and the raw material box is fixedly connected to the bottom of the outlet.

[0020] As a further description of the above technical solution:

[0021] The bottom of the outer box is fixedly connected to a fixing ring, and the bottom of the fixing ring is fixedly connected to a support leg.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, the double helical stirring blade one and the single helical stirring blade two are driven by the drive motor to form a convection circulation, so as to quickly and evenly mix raw materials with different physical properties such as polyols, isocyanates, catalysts, and foaming agents into a dispersed state, so that different components can fully contact each other.

[0024] 2. In this utility model, the inner wall of the raw material box and the mixing mechanism are cleaned by the circulating pump of the cleaning component, the connecting water pipe one, the connecting water pipe two and the nozzle. No parts need to be disassembled, which reduces downtime and improves the continuous operation efficiency of the equipment. Attached Figure Description

[0025] Figure 1This is a three-dimensional schematic diagram of a raw material mixing uniform device for a fully automatic intermittent foaming machine proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the discharge port of a raw material mixing uniform device for a fully automatic intermittent foaming machine proposed in this utility model;

[0027] Figure 3 This is a schematic diagram of the outer casing of a raw material mixing uniform device for a fully automatic intermittent foaming machine proposed in this utility model;

[0028] Figure 4 This is a schematic diagram of the nozzle structure of the raw material mixing uniform device of the fully automatic intermittent foaming machine proposed in this utility model.

[0029] Legend:

[0030] 1. Outer casing; 2. Box lid; 3. Sealing gasket; 4. Fixing ring; 5. Support leg; 6. Water inlet; 7. Water outlet; 8. Raw material box; 9. Feed inlet; 10. Discharge outlet; 11. Drive motor; 12. Flange; 13. Screw; 14. Nut; 15. Rotating shaft; 16. Spiral agitator blade one; 17. Spiral agitator blade two; 18. Fixed shaft; 19. Scraper; 20. Circulating pump; 21. Connecting water pipe one; 22. Connecting water pipe two; 23. Nozzle. 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. 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.

[0032] Reference Figure 1 , Figure 2 and Figure 4 This utility model provides an embodiment of a raw material mixing device for a fully automatic intermittent foaming machine, comprising a raw material tank 8, a mixing mechanism installed in the middle of the raw material tank 8 to improve the quality of raw material mixing. A tank cover 2 is fixedly connected to the top of the raw material tank 8, and a sealing gasket 3 is fixedly connected to the bottom of the tank cover 2 to prevent external dust and moisture from entering the raw material tank 8. A cleaning component is installed at the bottom of the sealing gasket 3; the cleaning component effectively and quickly cleans the residue inside the raw material tank 8.

[0033] The mixing mechanism includes a stirring assembly and a scraping assembly. The stirring assembly includes a drive motor 11, which is fixedly connected to the top of the cover 2. A rotating shaft 15 is fixedly connected to the output end of the drive motor 11. The drive motor 11 drives the rotating shaft 15 to rotate, and as the rotating shaft 15 rotates, it drives the first double-helix stirring blade 16 and the second double-helix stirring blade 17 to stir and mix together. The second double-helix stirring blade 17 is rotatably connected to the outside of the rotating shaft 15, and two first double-helix stirring blades 16 are rotatably connected to the outside of the rotating shaft 15. The first double-helix stirring blades 16 and the second double-helix stirring blades 17 rotate in opposite directions, generating upward and downward flow, forming a circulating stirring.

[0034] The scraping assembly includes a fixed shaft 18, which is fixedly connected to the outside of the rotating shaft 15. A scraper 19 is fixedly connected to the outside of the fixed shaft 18. The scraper 19 effectively removes the adhesive residue generated on the inner wall of the raw material bin 8. A flange 12 is fixedly connected to the outside of the rotating shaft 15. A screw 13 is threaded into the center of the flange 12, and a nut 14 is threaded into the outside of the screw 13. The flange 12, via the screw 13 and nut 14, facilitates the disassembly and replacement of the mixing mechanism, extending the service life of the equipment.

[0035] Reference Figure 1 , Figure 2 and Figure 4 The cleaning components include a second water pipe 22, which is fixedly connected to the bottom of the sealing gasket 3. A water outlet 7 is located in the middle of the tank cover 2. Multiple nozzles 23 are fixedly connected to the bottom of the second water pipe 22. A first water pipe 21 is located in the middle of the tank cover 2, and the second water pipe 22 is connected to the water outlet 7 via the first water pipe 21. Hot water is supplied from the inlet 6 into the outer tank 1. The outer tank 1 transfers heat to the interior of the raw material tank 8, precisely heating the foaming agent solution near the inner wall and bottom of the raw material tank 8 where the temperature is easily lowered. If the solution solidifies and clumps, it will fall to the bottom of the raw material tank 8, where the heat radiated by the hot water inside the outer tank 1 helps to quickly dissolve the clumps. A circulation pump 20 is fixedly connected to the outside of the first water pipe 21. The circulation pump 20 is then activated to supply hot water through the first water pipe 21 to the second water pipe 22. Subsequently, the hot water cleans the interior of the raw material tank 8 through the nozzles 23.

[0036] Reference Figure 1 , Figure 2 and Figure 3An outer casing 1 is fixedly connected to the outside of the raw material tank 8. Hot water is added to the outer casing 1, and the heat is transferred to the raw material tank 8 to dissolve any agglomerates. A water inlet 6 is fixedly connected to the outside of the outer casing 1. The water inlet 6 delivers hot water. A feed inlet 9 is fixedly connected to the middle of the sealing gasket 3, and a discharge outlet 10 is fixedly connected to the bottom of the raw material tank 8. A fixing ring 4 is fixedly connected to the bottom of the outer casing 1, and a support leg 5 is fixedly connected to the bottom of the fixing ring 4. The fixing ring 4 and the support leg 5 are used to support the raw material tank 8 and the outer casing 1.

[0037] Working principle: When the raw material mixing device of the foaming machine is required, different raw materials are first injected into the raw material box 8 through the feed port 9. Then, the drive motor 11 is started to drive the rotating shaft 15 to rotate. When the rotating shaft 15 rotates, it drives the spiral stirring blade 16 to generate an upward axial flow and the spiral stirring blade 17 to generate a downward axial flow, forming a stirring cycle. At the same time, the scraper 19 scrapes the inner wall of the raw material box 8 to remove the adhesive material on the inner wall. The scraper 19, the spiral stirring blade 16 and the spiral stirring blade 17 work together to form a spiral flow channel in the raw material box 8.

[0038] After mixing, hot water is added into the outer casing 1 through the inlet 6. The heat generated by the hot water in the outer casing 1 is transferred to the raw material box 8, thereby heating the foaming agent solution inside the raw material box 8, where the temperature is easily lowered. At this time, the heat dissipated by the hot water in the outer casing 1 helps to quickly dissolve the clumps, ensuring that the foaming agent solution in the raw material box 8 is heated evenly and preventing the foaming agent solution from solidifying due to low temperature. Then, it is discharged from the raw material box 8 through the outlet 10 for subsequent foaming or other operations.

[0039] When the mixing is complete, start the circulation pump 20 to draw hot water from the outlet 7 in the outer casing 1 and transport it to the second connecting water pipe 22 through the first connecting water pipe 21. This causes the nozzle 23 to spray hot water into the raw material box 8. During cleaning, the scraper 19 rotates with the rotating shaft 15 and works together with the hot water sprayed from the nozzle 23. The scraper 19 scrapes off stubborn residues adhering to the wall of the raw material box 8, while the hot water washes away and carries away the scraped material, improving the cleaning effect.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.

Claims

1. A raw material mixing and homogenization device for a fully automatic intermittent foaming machine, comprising a raw material tank (8), characterized in that: A mixing mechanism is installed in the middle of the raw material box (8), a box cover (2) is fixedly connected to the top of the raw material box (8), a sealing gasket (3) is fixedly connected to the bottom of the box cover (2), and a cleaning component is installed at the bottom of the sealing gasket (3). The mixing mechanism includes a stirring assembly and a scraping assembly. The stirring assembly includes a drive motor (11), which is fixedly connected to the top of the box cover (2). The output end of the drive motor (11) is fixedly connected to a rotating shaft (15). The rotating shaft (15) is rotatably connected to a spiral stirring blade (17), and the rotating shaft (15) is rotatably connected to two spiral stirring blades (16).

2. The raw material mixing uniform device for a fully automatic intermittent foaming machine according to claim 1, characterized in that: The scraping assembly includes a fixed shaft (18) which is fixedly connected to the outside of the rotating shaft (15), and a scraper (19) is fixedly connected to the outside of the fixed shaft (18).

3. The raw material mixing uniform device for a fully automatic intermittent foaming machine according to claim 1, characterized in that: The rotating shaft (15) is externally fixedly connected to a flange (12), and a screw (13) is threadedly connected to the middle of the flange (12), and a nut (14) is threadedly connected to the external thread of the screw (13).

4. The raw material mixing uniformity device for a fully automatic intermittent foaming machine according to claim 1, characterized in that: The cleaning assembly includes a second connecting water pipe (22), which is fixedly connected to the bottom of the sealing gasket (3). A water outlet (7) is provided in the middle of the cover (2). Multiple nozzles (23) are fixedly connected to the bottom of the second connecting water pipe (22). A first connecting water pipe (21) is provided in the middle of the cover (2). The second connecting water pipe (22) is connected to the water outlet (7) through the first connecting water pipe (21).

5. The raw material mixing uniformity device for a fully automatic intermittent foaming machine according to claim 4, characterized in that: A circulation pump (20) is fixedly connected to the outside of the connecting water pipe (21).

6. The raw material mixing uniform device for a fully automatic intermittent foaming machine according to claim 1, characterized in that: The raw material box (8) is fixedly connected to an outer box (1), and the outer box (1) is fixedly connected to a water inlet (6).

7. The raw material mixing uniformity device for a fully automatic intermittent foaming machine according to claim 1, characterized in that: The sealing gasket (3) is fixedly connected to the middle of the inlet (9), and the raw material box (8) is fixedly connected to the bottom of the outlet (10).

8. The raw material mixing uniform device for a fully automatic intermittent foaming machine according to claim 6, characterized in that: The bottom of the outer box (1) is fixedly connected to a fixing ring (4), and the bottom of the fixing ring (4) is fixedly connected to a support leg (5).

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