Mixing device for polyurethane raw materials

Abstract

The utility model discloses a mixing device for polyurethane raw materials, and relates to the technical field of polyurethane. The mixing device for the polyurethane raw materials comprises a platform, a mixing tank is arranged at the top end of the platform, a lifting device is fixedly installed at the top end of the platform, a stirring structure is arranged at the movable end of the lifting device, and the stirring structure is located above the mixing tank; by using the externally connected motor, the stirring rod and the follow-up disc can be effectively driven to synchronously rotate, and the synchronous rotating mechanism enables the follow-up disc to drive the rotating shaft and the square shaft by virtue of the action of the follow-up wheel, so that the two gears are finally promoted to be matched with each other to drive the mixing tank to rotate, and the mixing effect is improved. The design ensures that the rotating direction of the tank body is opposite to the rotating direction of the stirring rod, so that an efficient stirring effect is formed in the tank body, the stirring and mixing uniformity of raw materials in the tank body is ensured, and the mixing effect of the raw materials is remarkably improved.

Description

Technical Field

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

[0002] Polyurethane, also known as polyurethane, is a high-molecular-weight material with excellent mechanical properties, formed by the polycondensation reaction of polyols and polyisocyanates. It is extremely ductile, has high mechanical strength, excellent flexibility and resilience, and good weather resistance, which leads to its wide application. Polyurethane composite products are one type of polyurethane application and are commonly used in daily life.

[0003] During the production of polyurethane, a mixing device is required to mix the polyurethane raw materials evenly, thereby ensuring the quality of subsequent polyurethane processing.

[0004] A search revealed a polyurethane preparation device in patent publication number CN221558387U, which states that "the polyurethane preparation device can drive the mixing components to rotate through the rotation of a motor, so that the first mixing blade and the second mixing blade can be blocked by the polyurethane raw material, forming an alternating contact state or an open state. It can achieve mixing and stirring of polyurethane raw materials in different states, shortening the mixing time and improving the mixing efficiency."

[0005] However, the above solution still has some shortcomings in actual use. The technical solution still uses a single stirring rod to achieve the mixing of raw materials, and the mixing effect of this single stirring method is poor, which leads to a significant reduction in the mixing effect. Utility Model Content

[0006] This invention provides a mixing device for polyurethane raw materials to solve the problems in the prior art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a mixing device for polyurethane raw materials, comprising a platform, a mixing tank at the top of the platform, a lifting device fixedly installed at the top of the platform, a stirring structure at the movable end of the lifting device, the stirring structure being located above the mixing tank, a follower structure being provided on the outside of the mixing tank, and the follower structure being interconnected with the stirring structure.

[0008] The stirring structure includes a movable disc, an external motor is installed at the top of the movable disc, and a stirring rod is fixedly installed on the output shaft of the external motor;

[0009] The follow-up structure comprises a follow-up disc and a follow-up wheel, the inner wall of the follow-up disc is fixedly sleeved with the output shaft of the external motor, the follow-up disc is located below the moving disc, the follow-up disc and the follow-up wheel are transmissionally connected through a transmission belt, the top end of the platform is rotationally connected with a first gear and a second gear, the first gear and the second gear are in meshing, and the top end of the second gear is fixedly connected with the bottom end of the mixing tank.

[0010] The bottom end of the follow-up wheel is fixedly provided with a rotating shaft, and the top end of the first gear is fixedly provided with a square shaft, and the square shaft is movably connected with the rotating shaft.

[0011] Further, the outer side of the output shaft of the external motor is movably sleeved with a closing cover, the outer side of the closing cover is provided with a lock buckle, and the closing cover is movably clamped with the opening of the mixing tank through the lock buckle.

[0012] Further, the outer side of the output shaft of the external motor is movably sleeved with a communication plate, and the bottom end of the communication plate is rotationally connected with the top end of the follow-up disc and the follow-up wheel, respectively.

[0013] Further, the bottom end of the rotating shaft is provided with a square slot matched with the square shaft, and the square shaft is located in the square slot.

[0014] Further, the lifting device comprises a driving box, a threaded rod is rotationally connected in the driving box through an external motor, a threaded block is screwedly connected to the surface of the threaded rod, a connecting plate is fixedly installed to the outer side of the threaded block, and the other end of the connecting plate is fixedly connected with the outer side of the moving disc.

[0015] Compared with the prior art, the utility model provides a kind of mixing device for polyurethane raw materials, with the following beneficial effects:

[0016] The mixing device for polyurethane raw materials is provided with a stirring structure and a follow-up structure, which can effectively drive the synchronous rotary motion of the stirring rod and the follow-up disc by using an external motor. This synchronous rotation mechanism enables the follow-up disc to drive the rotating shaft and the square shaft by the action of the follow-up wheel, ultimately promoting the mutual cooperation of the two gears to drive the mixing tank to rotate. This design ensures that the rotation direction of the tank body is opposite to that of the stirring rod, thereby forming an efficient stirring effect in the tank body and ensuring uniform mixing of the raw materials. This design significantly improves the mixing effect of the raw materials, enhancing the subsequent processing quality of polyurethane. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 It is a stirring structure schematic diagram of the utility model;

[0019] Figure 3 It is the schematic view of the lifting device of the utility model;

[0020] Figure 4 It is the schematic view of the follow-up structure of the utility model.

[0021] In the drawing: 1, ground; 2, mixing tank; 3, stirring structure; 301, moving disc; 302, external motor; 303, closed cover; 304, stirring rod; 4, lifting device; 401, drive box; 402, threaded rod; 403, threaded block; 404, connecting plate; 5, follow-up structure; 501, follow-up disc; 502, follow-up wheel; 503, communication plate; 504, first gear; 505, second gear; 506, rotating shaft; 507, square shaft. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0023] Please refer to Figures 1-4 The utility model discloses a kind of mixing devices for polyurethane raw materials, including ground 1, the top of the ground 1 is provided with mixing tank 2, the top of the ground 1 is fixedly installed with lifting device 4, the movable end of the lifting device 4 is provided with stirring structure 3, the stirring structure 3 is above mixing tank 2, the outside of the mixing tank 2 is provided with follow-up structure 5, and the stirring structure 3 is connected with each other with follow-up structure 5.

[0024] The stirring structure 3 includes moving disc 301, the top of the moving disc 301 is installed with external motor 302, and the output shaft of the external motor 302 is fixedly installed with stirring rod 304.

[0025] The follow-up structure 5 includes follow-up disc 501 and follow-up wheel 502, the inner wall of the follow-up disc 501 is fixedly sleeved with the output shaft of external motor 302, the follow-up disc 501 is below moving disc 301, the follow-up disc 501 and follow-up wheel 502 are drivenly connected by transmission belt, the top of the ground 1 is rotatably connected with first gear 504 and second gear 505, the first gear 504 and the second gear 505 are engaged, and the top of the second gear 505 is fixedly connected with the bottom of mixing tank 2.

[0026] The bottom end of the follow-up wheel 502 is fixedly installed with a rotating shaft 506, and the top end of the first gear 504 is fixedly installed with a square shaft 507, which is movably connected with the rotating shaft 506.

[0027] By setting the stirring structure 3 and the follow-up structure 5, the stirring rod 304 and the follow-up disc 501 can be effectively driven to rotate synchronously by using an externally connected motor. The synchronous rotation mechanism enables the follow-up disc 501 to drive the rotating shaft 506 and the square shaft 507 through the action of the follow-up wheel 502, and finally promotes the two gears to drive the mixing tank 2 to rotate. This design ensures that the rotation direction of the tank body is opposite to that of the stirring rod 304, thereby forming an efficient stirring effect in the tank body and ensuring the uniformity of the mixing of raw materials in the tank body. Such a design significantly improves the mixing effect of the raw materials and improves the subsequent processing quality of polyurethane.

[0028] Specifically, the outer side of the output shaft of the external motor 302 movably sleeves a closure cover 303, the outer side of the closure cover 303 is provided with a lock catch, and the closure cover 303 is movably clamped with the opening of the mixing tank 2 through the lock catch.

[0029] In this embodiment, the closure cover 303 can effectively close the opening of the mixing tank 2, prevent raw materials from splashing out during stirring, and also ensure the closedness of the stirring environment, thereby reducing the influence of external factors on the stirring effect. The closure cover 303 is movably clamped with the opening of the mixing tank 2 through the lock catch. This connection method is convenient to operate, and the user can easily open or close the closure cover 303 to facilitate the addition of raw materials or the removal of mixed materials.

[0030] Specifically, the outer side of the output shaft of the external motor 302 movably sleeves a communication plate 503, and the bottom end of the communication plate 503 is rotatably connected with the top end of the follow-up disc 501 and the follow-up wheel 502, respectively.

[0031] In this embodiment, the bottom end of the communication plate 503 is rotatably connected with the top end of the follow-up disc 501 and the follow-up wheel 502, respectively, so that the follow-up disc 501 can drive the follow-up disc 501 and the follow-up wheel 502 to displace together when following the height adjustment of the moving disc 301. This design not only strengthens the connection strength between the components of the follow-up structure 5, but also makes the power transmission during stirring more smooth, thereby further improving the stirring efficiency.

[0032] Specifically, the bottom end of the rotating shaft 506 is provided with a square slot matched with the square shaft 507, and the square shaft 507 is located inside the square slot.

[0033] In the embodiment, in order to ensure that the movable connection between the rotating shaft 506 and the square shaft 507 is stable and reliable, a square slot that is matched with the square shaft 507 is formed at the bottom end of the rotating shaft 506, and the square shaft 507 is located inside the square slot;

[0034] The relative sliding between the rotating shaft 506 and the square shaft 507 is allowed, so that the connection between the follow-up wheel 502 and the first gear 504 always exists during the height adjustment process.

[0035] The design makes the rotating shaft 506 always maintain a stable connection with the square shaft 507 during the rotation process, avoiding problems such as a decrease in stirring effect or equipment damage caused by loose connection.

[0036] Specifically, the lifting device 4 includes a driving box 401, a threaded rod 402 is rotationally connected inside the driving box 401 through an external motor, a threaded block 403 is threadedly connected to the surface of the threaded rod 402, a connecting plate 404 is fixedly installed on the outer side of the threaded block 403, and the other end of the connecting plate 404 is fixedly connected with the outer side of the moving disc 301.

[0037] In the embodiment, the design of the lifting device 4 makes the height of the stirring structure 3 adjustable. In actual operation, the external motor 41 is started to drive the threaded rod 402 to rotate. Since the threaded rod 402 and the threaded block 403 are threadedly connected, the rotation of the threaded rod 402 drives the threaded block 403 to move vertically. The movement of the threaded block 403 is further transmitted to the moving disc 301 through the connecting plate 404, thereby achieving the height adjustment of the stirring structure 3. This design not only makes the stirring rod 304 able to stir at different depths in the mixing tank 2, improving the uniformity of stirring, but also facilitates the user to adjust the position of the stirring rod 304 according to actual needs, enhancing the flexibility and practicality of the equipment. In addition, the stability of the threaded connection also ensures the stability of the stirring structure 3 during the height adjustment process, avoiding problems such as a decrease in stirring effect or safety hazards caused by shaking.

[0038] In use, first, the raw materials are put into the mixing tank 2, and then the lifting device 4 is started to drive the threaded rod 402 to rotate. Since the threaded rod 402 and the threaded block 403 are threadedly connected, the rotation of the threaded rod 402 drives the threaded block 403 to move vertically. The movement of the threaded block 403 is further transmitted to the moving disc 301 through the connecting plate 404, thereby achieving the height adjustment of the stirring structure 3.

[0039] The moving disc 301 drives the closure cover 303 to gradually fit the mixing tank 2. The closure cover 303 can effectively close the opening of the mixing tank 2 to prevent the raw materials from spilling out during stirring.

[0040] And the stirring rod 304 will gradually immerse in the inside of the mixing tank 2, and in the process, the relative sliding between the shaft 506 and the square shaft 507 will occur;

[0041] Then start the external motor 302, so that the external motor 302 drives the follow-up disc 501 and the stirring rod 304 to rotate synchronously, prompting the stirring rod 304 to mix the raw materials in the inside of the mixing tank 2;

[0042] And the follow-up disc 501 will drive the follow-up wheel 502 to rotate through the transmission belt, prompting the follow-up wheel 502 to drive the first gear 504 to rotate through the shaft 506 and the square shaft 507, and the rotation of the first gear 504 will drive the second gear 505 to mesh transmission, so that the second gear 505 will drive the mixing tank 2 to rotate, thereby ensuring that the rotation direction of the mixing tank 2 is opposite to the rotation direction of the stirring rod 304. This opposite direction rotation not only enhances the stirring effect, but also makes the raw materials in the mixing tank 2 more uniformly mixed. In addition, as the stirring rod 304 stirs at different depths of the mixing tank 2, the uniformity of the mixture of the raw materials is further improved, meeting the high requirements of polyurethane raw material mixing.

[0043] In summary, the mixing device for polyurethane raw materials, by setting the stirring structure 3 and the follow-up structure 5, by using an externally connected motor, can effectively drive the stirring rod 304 and the follow-up disc 501 to rotate synchronously. This synchronous rotation mechanism enables the follow-up disc 501 to drive the shaft 506 and the square shaft 507 through the action of the follow-up wheel 502, ultimately prompting the two gears to cooperate with each other to drive the mixing tank 2 to rotate. This design ensures that the rotation direction of the tank body is opposite to the rotation direction of the stirring rod 304, thereby forming an efficient stirring effect in the tank body, ensuring the uniformity of the stirring and mixing of the raw materials in the tank body. This design significantly improves the mixing effect of the raw materials, improving the subsequent processing quality of polyurethane.

[0044] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A mixing apparatus for polyurethane raw materials, comprising a platform (1), characterized in that: A mixing tank (2) is provided at the top of the platform (1), and a lifting device (4) is fixedly installed at the top of the platform (1). A stirring structure (3) is provided at the movable end of the lifting device (4). The stirring structure (3) is located above the mixing tank (2). A follower structure (5) is provided on the outside of the mixing tank (2). The follower structure (5) is connected to the stirring structure (3). The stirring structure (3) includes a movable disk (301), an external motor (302) is installed on the top of the movable disk (301), and a stirring rod (304) is fixedly installed on the output shaft of the external motor (302). The follower structure (5) includes a follower disk (501) and a follower wheel (502). The inner wall of the follower disk (501) is fixedly sleeved with the output shaft of the external motor (302). The follower disk (501) is located below the moving disk (301). The follower disk (501) and the follower wheel (502) are connected by a transmission belt. The top of the platform (1) is rotatably connected with a first gear (504) and a second gear (505). The first gear (504) and the second gear (505) mesh with each other. The top of the second gear (505) is fixedly connected to the bottom of the mixing tank (2). The bottom end of the follower wheel (502) is fixedly mounted with a rotating shaft (506), and the top end of the first gear (504) is fixedly mounted with a square shaft (507). The square shaft (507) and the rotating shaft (506) are movably connected.

2. The mixing device for polyurethane raw materials according to claim 1, characterized in that: A sealing cover (303) is movably sleeved on the outer side of the output shaft of the external motor (302). A latch is provided on the outer side of the sealing cover (303). The sealing cover (303) is movably engaged with the opening of the mixing tank (2) through the latch.

3. The mixing device for polyurethane raw materials according to claim 1, characterized in that: A connecting plate (503) is movably sleeved on the outer side of the output shaft of the external motor (302), and the bottom end of the connecting plate (503) is rotatably connected to the top end of the follower disk (501) and the follower wheel (502).

4. The mixing device for polyurethane raw materials according to claim 1, characterized in that: The bottom end of the rotating shaft (506) is provided with a square groove that is adapted to the square shaft (507), and the square shaft (507) is located inside the square groove.

5. A mixing device for polyurethane raw materials according to claim 1, characterized in that: The lifting device (4) includes a drive box (401), and the drive box (401) is rotatably connected to a threaded rod (402) via an external motor. The surface of the threaded rod (402) is threadedly connected to a threaded block (403).

6. A mixing device for polyurethane raw materials according to claim 5, characterized in that: A connecting plate (404) is fixedly installed on the outer side of the threaded block (403), and the other end of the connecting plate (404) is fixedly connected to the outer side of the movable disk (301).

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