Raw material mixing machine for producing polyurethane products

Abstract

The utility model discloses a raw material mixing machine for polyurethane product production, which comprises a mixing machine main body, a base is fixedly mounted at the top end of the mixing machine main body, a driving motor is mounted at the top end of the base, a rotating rod is fixedly mounted at the bottom end of the driving motor, and stirring rods are symmetrically distributed on the surface of the rotating rod. And stirring blades are fixedly mounted on the two sides of the stirring rod. Raw materials fall into the mixing machine main body after being filtered, a driving motor is operated, a rotating rod is driven, stirring rods are driven by the rotating rod to rotate, stirring blades are driven to rotate, the stirring rods are distributed on the surface of the rotating rod in a stepped manner, and meanwhile, the stirring blades are spiral, so that stirring is more uniform, and stirring is uniform at the bottom; the mixing efficiency is improved, the raw materials are prevented from generating a large number of bubbles, the rotating rod also drives the connecting block to rotate, then drives the connecting rod to rotate and then drives the scraper to rotate, bubbles formed by surface stirring are scraped, and a certain bubble eliminating effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of polyurethane product production, in particular to a raw material mixer for the production of polyurethane products. Background Art

[0002] A mixer is a mechanical device that uses mechanical force and gravity to evenly mix two or more materials. During the mixing process, it can also increase the contact surface area of ​​the materials to promote chemical reactions; it can also accelerate physical changes. Gas and low-viscosity liquid mixers are characterized by simple structure, no rotating parts, low maintenance and overhaul, and low energy consumption. This type of mixing machinery is divided into four types: air flow mixing, pipeline mixing, jet mixing, and forced circulation mixing.

[0003] The casting molding process is a commonly used method in the production of polyurethane products. For example, a polyurethane transmission belt is usually prepared by injecting the prepared polyurethane slurry into a mold, demolding it after curing to obtain a semi-finished product, and then cutting it according to the designed size requirements to obtain the product. The preparation of polyurethane slurry requires the use of a raw material mixer. However, liquid polyurethane materials are prone to generate bubbles during the mixing and batching process. In order to avoid the generation of bubbles, the mixer can only operate at a low speed, resulting in low work efficiency. The mixers in the prior art cannot solve this problem well. In addition, when using a mixer to prepare polyurethane slurry, it is necessary to avoid impurities or foreign matter in the raw materials during feeding, and it is also necessary to avoid a large amount of unloading, which causes the raw materials to accumulate on one side of the bottom of the mixer. This will increase the intensity of mixing and stirring, thereby affecting the batching efficiency to a certain extent. Utility Model Content

[0004] In order to overcome the above-mentioned deficiencies in the prior art, the utility model provides a raw material mixer for the production of polyurethane products. When the mixer is preparing the polyurethane slurry, it is not easy to generate bubbles, so the working efficiency is high, and impurities or foreign matter in the raw materials can be avoided. At the same time, a large amount of material discharge can be avoided, which causes the raw materials to accumulate on one side of the bottom of the mixer, increasing the intensity of mixing and stirring.

[0005] To achieve the above-mentioned purpose, a raw material mixer for the production of polyurethane products is provided, comprising a mixer body, a base is fixedly installed on the top of the mixer body, and a driving motor is installed on the top of the base, a rotating rod is fixedly installed on the bottom of the driving motor, and stirring rods are symmetrically distributed on the surface of the rotating rod, stirring blades are fixedly installed on both sides of the stirring rod, and a connecting block is sleeved and installed on the outer wall of the rotating rod, connecting rods are fixedly installed on both sides of the connecting block, and a scraper is fixedly installed on the bottom of the connecting rod, and the scraper is used to scrape off bubbles on the surface of the slurry; the stirring rods are distributed in a stepped manner, and the stirring blades are spiral.

[0006] After filtering, the raw materials fall into the main body of the mixer, and the driving motor drives the rotating rod, which drives the stirring rod to rotate, and then drives the stirring blades to rotate. Since the stirring rods are distributed on the surface of the rotating rod in a stepped manner and the stirring blades are spiral, the stirring is more uniform, and the uniform stirring at the bottom improves the mixing efficiency and avoids a large number of bubbles in the raw materials. The rotating rod also drives the connecting block to rotate, and then drives the connecting rod to rotate, and then drives the scraper to rotate, scraping off the bubbles formed by the surface stirring, which plays a certain role in eliminating bubbles.

[0007] Further, according to the aforementioned raw material mixer for producing polyurethane products, a mounting hole is provided on the outer wall of the rotating rod, and a pull rod is movably sleeved on the outer wall of the connecting block, a pad is fixedly connected to the surface of the pull rod, and the pad is movably sleeved in the groove, and the groove is provided inside the connecting block.

[0008] Furthermore, according to the aforementioned raw material mixer for producing polyurethane products, a telescopic spring is fixedly installed on the top of the cushion block, and the telescopic spring is movably sleeved on the outer wall of the pull rod.

[0009] Furthermore, according to the aforementioned raw material mixer for producing polyurethane products, a movable door is movably installed at the top of the mixer body.

[0010] Further, according to the aforementioned raw material mixer for the production of polyurethane products, a feed port is connected to the top of the mixer body, and slide grooves are symmetrically opened on the inner wall of the feed port, a slider is movably sleeved inside the slide groove, and the slider is installed on the outer wall of the mounting frame, a filter is installed on the inner wall of the mounting frame, and a vibration motor is installed at the bottom of the mounting frame, and the bottom end of the mixer body is connected to a discharge port.

[0011] Furthermore, according to the aforementioned raw material mixer for producing polyurethane products, a return spring is embedded and connected to the bottom end of the sliding block.

[0012] The raw materials are poured into the feed port and fall onto the filter. The vibration motor is operated, and the vibration of the vibration motor drives the mounting frame to vibrate, pushing the slider to slide in the slide groove. The slider is pushed up and down by the elasticity of the reset spring to achieve vibration, and then the filter filters the raw materials. The vibration improves the filtering effect. At the same time, the spring plays a good buffering role, so that the raw materials can be discharged slowly to avoid accumulation during discharge and reduce the efficiency of mixing.

[0013] The utility model arranges the stirring rod in a stepped manner on the rotating rod, and arranges spiral stirring blades on both sides of the stirring rod. During the stirring process, the polyurethane liquid material is not easy to generate bubbles, which effectively improves the configuration efficiency of the slurry. A scraper is provided at the bottom of the rotating rod to scrape off the bubbles on the surface of the slurry, further eliminating the influence of the bubbles, making the raw material mixer of the utility model suitable for the configuration of polyurethane slurry. In addition, the utility model arranges a specific filter screen, cooperates with the buffering effect of the spring, avoids the appearance of impurities or foreign matter in the raw materials, and also effectively avoids the accumulation of materials during feeding, which reduces the efficiency of mixing and stirring. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0015] Figure 1 This is a structural diagram of a raw material mixer for producing polyurethane products of the utility model;

[0016] Figure 2 The utility model is a raw material mixer for producing polyurethane products. Figure 1 The main section structure diagram of the medium mixer;

[0017] Figure 3 The utility model is a raw material mixer for producing polyurethane products. Figure 2 Enlarged structural diagram of the middle scraper;

[0018] Figure 4 The utility model is a raw material mixer for producing polyurethane products. Figure 3 A magnified structural diagram of a local section of the middle connection block;

[0019] Figure 5 The utility model is a raw material mixer for producing polyurethane products. Figure 1 Partial cross-sectional structure diagram of the middle feed port;

[0020] Figure 6 The utility model is a raw material mixer for producing polyurethane products. Figure 5 Enlarged structural diagram of the middle installation frame;

[0021] Figure 7 The utility model is a raw material mixer for producing polyurethane products. Figure 5 Enlarged structural diagram of the partial section of the middle slider.

[0022] Legend:

[0023] 1. Mixer body; 2. Base; 3. Drive motor; 4. Rotating rod; 5. Stirring rod; 6. Stirring blade; 7. Connecting block; 8. Connecting rod; 9. Scraper; 10. Mounting hole; 11. Pull rod; 12. Pad; 13. Groove; 14. Telescopic spring; 15. Movable door; 16. Feed inlet; 17. Slide; 18. Slider; 19. Mounting frame; 20. Filter; 21. Vibration motor; 22. Reset spring; 23. Discharge port. DETAILED DESCRIPTION

[0024] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0025] Reference Figures 1 to 7 The raw material mixer for producing polyurethane products in the embodiment of the utility model comprises a mixer body 1, a base 2 is fixedly installed on the top of the mixer body 1, a driving motor 3 is installed on the top of the base 2, a rotating rod 4 is fixedly installed on the bottom of the driving motor 3, and stirring rods 5 are symmetrically distributed on the surface of the rotating rod 4, stirring blades 6 are fixedly installed on both sides of the stirring rod 5, and a connecting block 7 is sleeved and installed on the outer wall of the rotating rod 4, connecting rods 8 are fixedly installed on both sides of the connecting block 7, and a scraper 9 is fixedly installed on the bottom of the connecting rod 8. After the raw materials are filtered, they fall into the inside of the mixer body 1, and then the driving motor 3 is operated, and the stirring rod 5 is driven to rotate by the rotating rod 4, and then the stirring blade 6 is driven to rotate. Since the stirring rod 5 is distributed on the surface of the rotating rod 4 in a stepped manner, and the stirring blade 6 is spiral, the stirring is more uniform, and the rotating rod 4 also drives the connecting block 7 to rotate, and then drives the connecting rod 8 to rotate, and then drives the scraper 9 to rotate to scrape the bubbles formed by the surface stirring.

[0026] The stirring rod 5 is distributed in a stepped manner, and the stirring blade 6 is spiral. Due to the stepped distribution, the bottom stirring coverage area is larger, so that the stirring is more efficient and uniform, and the stirring blade 6 is more efficient when rotating, so that the stirring is more uniform.

[0027] The outer wall of the rotating rod 4 is provided with a mounting hole 10, and the outer wall of the connecting block 7 is movably sleeved with a pull rod 11, and a cushion block 12 is fixedly connected to the surface of the pull rod 11, and the cushion block 12 is movably sleeved in a groove 13, and the groove 13 is provided inside the connecting block 7. By pulling the pull rod 11, the cushion block 12 is driven to slide in the groove 13, and the position of the connecting block 7 is adjusted by pushing the connecting block 7 to slide on the surface of the rotating rod 4, and the pull rod 11 is loosened and movably embedded in the mounting hole 10, and the connecting block 7 is fixedly installed to adjust the position of the scraper 9.

[0028] A telescopic spring 14 is fixedly installed on the top of the cushion block 12, and the telescopic spring 14 is movably sleeved on the outer wall of the pull rod 11. Through the elasticity of the telescopic spring 14, after the pull rod 11 has no tensile force, the pull rod 11 is pushed to reset and move.

[0029] A movable door 15 is movably installed at the top of the mixer body 1. The top of the mixer body 1 can be opened by the movable door 15.

[0030] The top of the mixer body 1 is connected with a feed port 16, and the inner wall of the feed port 16 is symmetrically provided with a slide 17, a slider 18 is movably sleeved inside the slide 17, and the slider 18 is installed on the outer wall of the mounting frame 19, a filter screen 20 is installed on the inner wall of the mounting frame 19, and a vibration motor 21 is installed at the bottom of the mounting frame 19, and a discharge port 23 is connected to the bottom of the mixer body 1. The raw materials are poured into the feed port 16, and then fall onto the filter screen 20, and the vibration motor 21 is operated, and the vibration of the vibration motor 21 drives the mounting frame 19 to shake, and the slider 18 is pushed to slide in the slide 17, and the slider 18 is pushed up and down by the elasticity of the reset spring 20 to achieve shaking, and then the filter screen 19 filters the raw materials, and the shaking improves the filtering effect.

[0031] The bottom end of the slider 18 is embedded with a return spring 22. When the vibration motor 21 drives the installation frame 19 to shake, the vibration of the installation frame 19 is improved by the elasticity of the return spring 22.

[0032] Working principle: first, the raw material is poured into the feed port 16, and then falls onto the filter screen 20. The vibration motor 21 is operated, and the vibration of the vibration motor 21 drives the mounting frame 19 to vibrate, pushing the slider 18 to slide in the slide groove 17. Through the elasticity of the reset spring 20, the slider 18 is pushed up and down to achieve vibration, and then the filter screen 19 filters the raw material, and the vibration improves the filtering effect. After the raw material is filtered, it falls into the mixer body 1, and then the driving motor 3 is operated to drive the rotating rod 4, and the rotating rod 4 drives the stirring rod 5 to rotate, and then drives the stirring blade 6 to rotate. Since the stirring rod 5 is distributed in a stepped manner on the surface of the rotating rod 4, and the stirring blade 6 is spiral, the stirring is more uniform, and the rotating rod 4 also drives the connecting block 7 to rotate, and then drives the connecting rod 8 to rotate, and then drives the scraper 9 to rotate to scrape off the bubbles formed by the surface stirring.

[0033] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A raw material mixer for the production of polyurethane products, characterized in that: The invention comprises a mixer body (1), wherein a base (2) is fixedly mounted on the top of the mixer body (1), and a driving motor (3) is mounted on the top of the base (2), a rotating rod (4) is fixedly mounted on the bottom of the driving motor (3), and stirring rods (5) are symmetrically distributed on the surface of the rotating rod (4), stirring blades (6) are fixedly mounted on both sides of the stirring rod (5), and a connecting block (7) is sleeved and mounted on the outer wall of the rotating rod (4), connecting rods (8) are fixedly mounted on both sides of the connecting block (7), and a scraper (9) is fixedly mounted on the bottom of the connecting rod (8), and the scraper (9) is used to scrape bubbles on the surface of the slurry; the stirring rods (5) are distributed in a stepped manner, and the stirring blades (6) are spiral-shaped.

2. The raw material mixer for producing polyurethane products according to claim 1, characterized in that: The outer wall of the rotating rod (4) is provided with a mounting hole (10), and the outer wall of the connecting block (7) is movably sleeved with a pull rod (11), the surface of the pull rod (11) is fixedly connected with a cushion block (12), and the cushion block (12) is movably sleeved in a groove (13), and the groove (13) is provided inside the connecting block (7).

3. The raw material mixer for producing polyurethane products according to claim 2, characterized in that: A telescopic spring (14) is fixedly mounted on the top of the cushion block (12), and the telescopic spring (14) is movably sleeved on the outer wall of the pull rod (11).

4. The raw material mixer for producing polyurethane products according to claim 1, characterized in that: A movable door (15) is movably mounted on the top of the mixer body (1).

5. The raw material mixer for producing polyurethane products according to any one of claims 1 to 4, characterized in that: The top of the mixer body (1) is connected to a feed port (16), and a slide groove (17) is symmetrically provided on the inner wall of the feed port (16). A slider (18) is movably sleeved inside the slide groove (17), and the slider (18) is mounted on the outer wall of a mounting frame (19). A filter screen (20) is mounted on the inner wall of the mounting frame (19), and a vibration motor (21) is mounted on the bottom end of the mounting frame (19). The bottom end of the mixer body (1) is connected to a discharge port (23).

6. The raw material mixer for producing polyurethane products according to claim 5, characterized in that: A return spring (22) is embedded and connected to the bottom end of the slider (18).

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