Stirring device for polyurethane resin production

Abstract

The utility model discloses a stirring device for polyurethane resin production, which comprises a frame, a stirring box fixedly mounted on the frame, a mounting rack fixedly mounted on the stirring box, a stirring pipe rotatably connected in the stirring box, a connecting plate slidably connected in the stirring pipe, and scrapers arranged at the front and rear parts of the stirring pipe. The front end and the rear end of the connecting plate extend out of the stirring pipe and are fixedly installed on the scraping plate, scraping frames are fixedly installed on the two sides of the stirring pipe, a plurality of stirring blades are fixedly installed on the portions, located in the scraping frames, of the two sides of the stirring pipe, a connecting rod is fixedly installed at the top end of the connecting plate, and a lifting plate is rotationally connected to the outer side of the connecting rod. And two threaded rods are rotationally connected into the mounting frame. According to the stirring device for polyurethane resin production, polyurethane resin raw materials attached to the inner wall of the stirring box and the front and rear end faces of the stirring blades and the scraping frame can be scraped off, so that the utilization rate of the raw materials is further improved, meanwhile, the polyurethane resin raw materials can be rapidly extruded out during material taking, and the material taking efficiency is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of polyurethane resin production, in particular to a stirring device for polyurethane resin production. Background Art

[0002] Polyurethane resin, or polyurethane, is a polymer material containing carbamate groups within its molecular structure. Its remarkable properties include high strength, tear resistance, abrasion resistance, chemical resistance, and weather resistance. These characteristics have led to its widespread application in a variety of fields, including construction, automotive manufacturing, furniture manufacturing, sports equipment manufacturing, footwear, and clothing manufacturing. For example, it can be used to manufacture coatings, sealants, waterproofing materials, thermal insulation materials, foams, elastomers, and adhesives. During the production and processing of polyurethane resin, it must be mixed with various additives, necessitating the use of a stirring device.

[0003] Most existing stirring devices do not have a cleaning structure. Since polyurethane resin has a certain viscosity, part of the polyurethane resin raw material is easily attached to the stirring blades and the inner wall of the mixing box during the stirring and mixing process, resulting in a waste of raw materials and a low utilization rate of the raw materials. In addition, due to the viscosity of the polyurethane resin, the natural flow and falling speed of the polyurethane resin raw material is slow during the material collection, resulting in low material collection efficiency.

[0004] To this end, we propose a stirring device for polyurethane resin production. Utility Model Content

[0005] The purpose of the utility model is to provide a stirring device for polyurethane resin production to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a stirring device for producing polyurethane resin, comprising a frame, a stirring box is fixedly mounted on the frame, a mounting frame is fixedly mounted on the stirring box, a stirring tube is rotatably connected in the stirring box, a connecting plate is slidably connected in the stirring tube, scrapers are provided at the front and rear parts of the stirring tube, the front and rear ends of the connecting plate are extended out of the stirring tube and are fixedly mounted on the scraper, scrapers are fixedly mounted on both sides of the stirring tube, a plurality of stirring blades are fixedly mounted in the scraper on both sides of the stirring tube, a connecting rod is fixedly mounted on the top of the connecting plate, a lifting plate is rotatably connected to the outer side of the connecting rod, two threaded rods are rotatably connected in the mounting frame, slides are sleeved on the two threaded rods, and the two slides are fixedly mounted on the lifting plate on the side close to each other, a gear ring is sleeved on the outer side of the top of the stirring tube, a gear is meshed and connected at the rear end of the gear ring, and a limiting ring is sleeved on the lower part of the lifting plate on the connecting rod.

[0007] Optionally, two motors are fixedly mounted on the mounting frame, and the output ends of the two motors are respectively fixedly mounted on corresponding threaded rods. The threaded rods are driven to rotate by the motors, which is beneficial to the use of the device.

[0008] Optionally, a bracket is provided on the outside of the gear at the top of the mixing box, a motor is fixedly mounted on the bracket, and the output end of the motor is fixedly mounted on the gear. The gear is driven to rotate by the motor, which is beneficial to the use of the device.

[0009] Optionally, the two scrapers are both configured to be U-shaped, and this design facilitates the use of the device.

[0010] Optionally, an opening is provided between the two scrapers, and the opening is reserved to facilitate the passage of the scraper and the stirring blade.

[0011] Optionally, a feed pipe is fixedly installed on the right side of the mixing box, and a discharge pipe is fixedly installed on the bottom end of the mixing box. Solenoid valves are fixedly installed in the feed pipe and the discharge pipe to facilitate the entry and exit of polyurethane resin.

[0012] Optionally, a PLC controller is fixedly installed at the front end of the mixing box, and the operation of the equipment is conveniently controlled by the PLC controller.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] Through the mutual cooperation of the scraper, opening, scraper, threaded rod, mounting frame, slide plate, limit ring, connecting rod, lifting plate and motor, the polyurethane resin raw material adhered to the inner wall of the mixing box and the front and rear end surfaces of the mixing blade and scraper can be scraped off, thereby further improving the utilization rate of the raw materials. At the same time, the polyurethane resin raw material can be quickly squeezed out when taking the material, thereby further improving the material taking efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a stirring device for polyurethane resin production according to the present invention;

[0016] Figure 2 This is a cross-sectional view of a stirring device for polyurethane resin production according to the present invention;

[0017] Figure 3 This is a cross-sectional view of a middle bracket of a stirring device for polyurethane resin production according to the present invention;

[0018] Figure 4 The utility model is a cross-sectional view of a scraper in a stirring device for producing polyurethane resin.

[0019] In the figure: 1. Frame; 2. Mixing box; 3. Mounting frame; 4. PLC controller; 5. Mixing tube; 6. Connecting plate; 7. Scraper; 8. Opening; 9. Mixing blade; 10. Scraper; 11. Threaded rod; 12. Slide plate; 13. Limiting ring; 14. Connecting rod; 15. Lifting plate; 16. Motor; 17. Gear; 18. Gear ring; 19. Motor; 20. Bracket; 21. Discharge pipe; 22. Solenoid valve; 23. Feed pipe. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] See also Figures 1 to 4 The utility model provides a stirring device for producing polyurethane resin, comprising a frame 1, a stirring box 2 is fixedly mounted on the frame 1, a mounting frame 3 is fixedly mounted on the stirring box 2, a stirring tube 5 is rotatably connected in the stirring box 2, a connecting plate 6 is slidably connected in the stirring tube 5, and scrapers 7 are provided at the front and rear ends of the stirring tube 5, the front and rear ends of the connecting plate 6 are extended out of the stirring tube 5 and are fixedly mounted on the scraper 7, a scraper 10 is fixedly mounted on both sides of the stirring tube 5, a plurality of stirring blades 9 are fixedly mounted in the scraper 10 on both sides of the stirring tube 5, a connecting rod 14 is fixedly mounted on the top of the connecting plate 6, a lifting plate 15 is rotatably connected to the outer side of the connecting rod 14, two threaded rods 11 are rotatably connected in the mounting frame 3, a slide plate 12 is sleeved on the two threaded rods 11, and the two slide plates 12 are fixedly mounted on the lifting plate 15 on the side close to each other, a gear ring 18 is sleeved on the outer side of the top end of the stirring tube 5, a gear 17 is meshed and connected at the rear end of the gear ring 18, and a limiting ring 13 is sleeved on the lower part of the lifting plate 15 on the connecting rod 14.

[0022] Two motors 16 are fixedly installed on the mounting frame 3. The output ends of the two motors 16 are respectively fixedly mounted on the corresponding threaded rods 11. The rotation of the threaded rods 11 by the motors 16 is conducive to the use of this equipment. The top of the mixing box 2 is located on the outside of the gear 17 and is sleeved with a bracket 20. The bracket 20 is fixedly mounted with a motor 19. The output end of the motor 19 is fixedly mounted on the gear 17. The rotation of the gear 17 by the motor 19 is conducive to the use of this equipment. The two scrapers 10 are both arranged in a U shape. This design is conducive to the use of this equipment. An opening 8 is provided between the two scrapers 7. The reserved opening 8 facilitates the passage of the scraper 10 and the stirring blade 9. A feed pipe 23 is fixedly mounted on the right side of the mixing box 2, and a discharge pipe 21 is fixedly mounted on the bottom end of the mixing box 2. Solenoid valves 22 are fixedly mounted in the feed pipe 23 and the discharge pipe 21. The feed pipe 23 and the discharge pipe 21 facilitate the entry and exit of polyurethane resin. A PLC controller 4 is fixedly mounted on the front end of the mixing box 2, and the PLC controller 4 is used to control the operation of this equipment.

[0023] Working principle: When in use, add polyurethane resin raw materials and additives from the feed pipe 23, then close the solenoid valve 22 in the feed pipe 23, turn on the stirring switch, and the motor 19 will work to drive the gear 17, the gear ring 18 and the stirring tube 5 to rotate, and the stirring tube 5 will drive the scraper 10 and the stirring blade 9 to rotate to stir and mix. The scraper 10 can scrape off the polyurethane resin raw materials attached to the inner wall of the stirring box 2. After the stirring is completed, the motor 16 and the solenoid valve 22 in the discharge pipe 21 can be opened. At this time, the motor 16 will work to drive the threaded rod 11 to rotate, and the two slides 12 will drive the lifting plate 15 to descend. The lifting plate 15 drives the connecting rod 14, the connecting plate 6 and the two scrapers 7 to press down, so as to scrape off the polyurethane resin raw materials adhering to the scraper 10 and the stirring blade 9, and at the same time squeeze the polyurethane resin raw materials so that the polyurethane resin raw materials can quickly flow out from the discharge pipe 21. This stirring device for polyurethane resin production is easy to use. Through the above components, the polyurethane resin raw materials adhering to the inner wall of the stirring box 2 and the front and rear end surfaces of the stirring blade 9 and the scraper 10 can be scraped off, thereby further improving the utilization rate of the raw materials. At the same time, the polyurethane resin raw materials can be quickly squeezed out when taking the material, thereby further improving the material taking efficiency.

[0024] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A stirring device for polyurethane resin production, characterized in that: The machine comprises a frame (1), a stirring box (2) is fixedly mounted on the frame (1), a mounting frame (3) is fixedly mounted on the stirring box (2), a stirring tube (5) is rotatably connected inside the stirring box (2), a connecting plate (6) is slidably connected inside the stirring tube (5), a scraper (7) is arranged at the front and rear parts of the stirring tube (5), the front and rear ends of the connecting plate (6) extend out of the stirring tube (5) and are fixedly mounted on the scraper (7), a scraper frame (10) is fixedly mounted on both sides of the stirring tube (5), and a plurality of stirring blades (9) are fixedly mounted inside the scraper frame (10) on both sides of the stirring tube (5). A connecting rod (14) is fixedly mounted on the top of the connecting plate (6), and a lifting plate (15) is rotatably connected to the outer side of the connecting rod (14). Two threaded rods (11) are rotatably connected inside the mounting frame (3), and slide plates (12) are sleeved on the two threaded rods (11). The two slide plates (12) are fixedly mounted on the lifting plate (15) on the sides close to each other. A gear ring (18) is sleeved on the outer side of the top of the stirring tube (5), and a gear (17) is meshingly connected to the rear end of the gear ring (18). A limit ring (13) is sleeved on the lower part of the connecting rod (14) located at the lifting plate (15).

2. A stirring device for polyurethane resin production according to claim 1, characterized in that: Two motors (16) are fixedly mounted on the mounting frame (3), and output ends of the two motors (16) are respectively fixedly mounted on corresponding threaded rods (11).

3. A stirring device for polyurethane resin production according to claim 1, characterized in that: The top end of the mixing box (2) is located outside the gear (17) and is provided with a bracket (20), a motor (19) is fixedly mounted on the bracket (20), and an output end of the motor (19) is fixedly mounted on the gear (17).

4. A stirring device for polyurethane resin production according to claim 1, characterized in that: The two scraper racks (10) are both arranged in a U shape.

5. A stirring device for polyurethane resin production according to claim 1, characterized in that: An opening (8) is provided between the two scrapers (7).

6. A stirring device for polyurethane resin production according to claim 1, characterized in that: A feed pipe (23) is fixedly mounted on the right side of the mixing box (2), a discharge pipe (21) is fixedly mounted on the bottom end of the mixing box (2), and solenoid valves (22) are fixedly mounted in both the feed pipe (23) and the discharge pipe (21).

7. A stirring device for polyurethane resin production according to claim 1, characterized in that: A PLC controller (4) is fixedly mounted on the front end of the mixing box (2).

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