Thermoplastic polyurethane elastomer film production mixing device

Abstract

The utility model discloses a thermoplastic polyurethane elastomer film production mixing device which comprises a stirring barrel, a sealing shell is fixedly connected to the top end of the stirring barrel and located at the center position, a motor is fixedly connected to the top end of the sealing shell, and the output end of the motor is in transmission connection with a driving shaft. A first bevel gear is fixedly connected to the outer surface of the driving shaft and located in the sealing shell. The motor drives the driving shaft to rotate, the first bevel gear is driven to rotate in the rotating process of the driving shaft, and the second bevel gear meshed with the first bevel gear drives the rotating sleeve connected with the third bevel gear to rotate reversely in the rotating process of the first bevel gear. In the rotating process of the rotating sleeve, the scraping plate fixed with the connecting rod is driven to rotate and scrape the inner wall of the stirring barrel, so that raw material slurry adhered to the inner wall is hung down by the scraping plate and pushed into the middle part of the stirring barrel, the raw materials are mixed more sufficiently, and the mixing efficiency of the raw materials is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of polyurethane film production, in particular to a thermoplastic polyurethane elastomer film production mixing device. Background Art

[0002] The full name of polyurethane is polyurethane, which is a high molecular compound. Polyurethane has two major types: polyester and polyether. They can be made into polyurethane plastics, polyurethane fibers, polyurethane rubbers and elastomers. Soft polyurethane is mainly a thermoplastic linear structure. It has better stability, chemical resistance, resilience and mechanical properties than PVC foam materials, and has smaller compression deformation. In the process of polyurethane film production, the factory needs to stir and mix the raw materials of polyurethane film.

[0003] The existing stirring and mixing device has a relatively simple structure. It is easy to have dead corners during stirring and it is impossible to scrape and stir the raw material glue adhering to the inner wall of the stirring box, so that the raw materials of the polyurethane film are not stirred and mixed evenly, thereby affecting the quality of the polyurethane product. Utility Model Content

[0004] The utility model aims to provide a thermoplastic polyurethane elastomer film production mixing device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a thermoplastic polyurethane elastomer film production mixing device, comprising a stirring barrel, a sealing shell is fixedly connected at the top of the stirring barrel and located at the center position, a motor is fixedly connected to the top of the sealing shell, a driving shaft is drivingly connected to the output end of the motor, the outer surface of the driving shaft is fixedly connected to a first bevel gear located inside the sealing shell, and the two side walls inside the sealing shell are rotatably connected to a second bevel gear, and the outer surfaces of the two second bevel gears are meshed with the outer surfaces of the first bevel gear, the outer surface of the driving shaft is rotatably connected to a rotating sleeve, the outer surface of the rotating sleeve is fixedly connected to a third bevel gear located at the top position, and the outer surface of the third bevel gear is meshed with the outer surfaces of the two second bevel gears, the bottom end of the rotating sleeve passes through the top of the stirring barrel, the outer surface of the rotating sleeve is rotatably connected to the top of the stirring barrel, two connecting rods are fixedly connected to the outer surface of the rotating sleeve near the bottom end, and scrapers are fixedly connected at the bottom ends of the two connecting rods and located at the edge positions, and the outer surfaces of the scrapers are in contact with the inner wall of the stirring barrel.

[0006] As a further preferred embodiment of the present technical solution, an insulation sleeve is fixedly connected to the outer surface of the mixing barrel, an installation groove is opened on the inner surface of the insulation sleeve, a heating resistance wire is fixedly connected to the inner surface of the installation groove, and the outer surface of the heating resistance wire is in contact with the outer surface of the mixing barrel.

[0007] As a further preferred embodiment of the present technical solution, a control box is fixedly connected to the outer surface of the thermal insulation sleeve, and the interior of the control box is electrically connected to both ends of the heating resistance wire.

[0008] As a further preferred embodiment of the present technical solution, three stirring blades are fixedly connected to the outer surface of the driving shaft, and two spiral blades are fixedly connected to the outer surfaces of the three stirring blades.

[0009] As a further preferred embodiment of the present technical solution, the bottom end of the driving shaft is rotatably connected to a stabilizing bar, and the top end of the stabilizing bar is fixedly connected to the bottom ends of the two scrapers.

[0010] As a further preferred embodiment of the present technical solution, a feeding pipe is connected through the top of the mixing barrel, and a sealing cover is inserted into the top of the feeding pipe.

[0011] As a further preferred embodiment of the present technical solution, a discharge pipe is connected through the bottom of the mixing barrel, and a sealing plug is rotatably connected inside the discharge pipe.

[0012] The utility model provides a thermoplastic polyurethane elastomer film production mixing device, which has the following beneficial effects:

[0013] (1) The utility model drives the driving shaft to rotate through a motor, and during the rotation of the driving shaft, drives the No. 1 bevel gear to rotate. During the rotation of the No. 1 bevel gear, the No. 2 bevel gear meshing with it drives the rotating sleeve connected to the No. 3 bevel gear to rotate in the opposite direction. During the rotation of the rotating sleeve, the scraper fixed to the connecting rod is driven to rotate and scrape the inner wall of the mixing barrel, so that the scraper can pick up the raw material slurry adhering to the inner wall and push it into the middle of the mixing barrel, so that the raw materials are mixed more fully, thereby improving the mixing efficiency of the raw materials.

[0014] (2) The utility model controls the heating resistance wire to heat the inside of the mixing barrel by means of a control box, so that the heating resistance wire heats the inside of the mixing barrel, causing the thermoplastic polyurethane particles to gradually melt during the mixing process, thereby reducing the stage of preheating and melting the thermoplastic polyurethane particles, simplifying the steps, and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure inside the mixing barrel of the utility model;

[0017] Figure 3 It is a side view schematic diagram of the internal structure of the mixing barrel of the utility model;

[0018] Figure 4 It is a schematic diagram of the driving shaft and rotating sleeve structure of the utility model.

[0019] In the figure: 1. mixing barrel; 2. sealing shell; 3. motor; 4. driving shaft; 5. bevel gear No. 1; 6. bevel gear No. 2; 7. bevel gear No. 3; 8. rotating sleeve; 9. connecting rod; 10. scraper; 11. insulation sleeve; 12. mounting groove; 13. heating resistor wire; 14. stirring blade; 15. spiral blade; 16. stabilizing rod; 17. control box; 18. feeding pipe; 19. sealing cover; 20. discharging pipe; 21. sealing plug. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0021] The utility model provides a technical solution: Figure 1-4 As shown, in this embodiment, a thermoplastic polyurethane elastomer film production mixing device includes a stirring barrel 1, a sealing shell 2 is fixedly connected to the top of the stirring barrel 1 and located at the center, a motor 3 is fixedly connected to the top of the sealing shell 2, and a driving shaft 4 is drivingly connected to the output end of the motor 3. The outer surface of the driving shaft 4 and the sealing shell 2 are fixedly connected to a first bevel gear 5, and the inner side walls of the sealing shell 2 are rotatably connected to a second bevel gear 6. The outer surfaces of the two second bevel gears 6 are meshed with the outer surface of the first bevel gear 5. The outer surface of the driving shaft 4 is rotatably connected to a rotating sleeve 8, and the outer surface of the rotating sleeve 8 and the top position are fixedly connected to a third bevel gear 7. The outer surface of the third bevel gear 7 is meshed with the outer surfaces of the two second bevel gears 6. The surfaces are meshed, and the bottom end of the rotating sleeve 8 passes through the top of the mixing barrel 1. The outer surface of the rotating sleeve 8 is rotatably connected to the top of the mixing barrel 1. Two connecting rods 9 are fixedly connected to the outer surface of the rotating sleeve 8 near the bottom end. The bottom ends of the two connecting rods 9 are fixedly connected with scrapers 10 at the edge positions. The outer surface of the scraper 10 contacts the inner wall of the mixing barrel 1. By setting the sealing shell 2, the No. 1 bevel gear 5, the No. 2 bevel gear 6 and the No. 3 bevel gear 7 can be protected, and the support force can also be provided for the two No. 2 bevel gears 6. By setting the scraper 10, the inner wall of the mixing barrel 1 can be hung. At the same time, the scraper 10 is inclined, and the scraped raw materials can be pushed into the middle of the mixing barrel 1 to improve the mixing efficiency of the raw materials.

[0022] like Figure 1-3 As shown, a heat-insulating sleeve 11 is fixedly connected to the outer surface of the mixing barrel 1, a mounting groove 12 is provided on the inner surface of the heat-insulating sleeve 11, a heating resistance wire 13 is fixedly connected to the inner surface of the mounting groove 12, and the outer surface of the heating resistance wire 13 is in contact with the outer surface of the mixing barrel 1. By setting the mounting groove 12, the heating resistance wire 13 is fixed, and by setting the heating resistance wire 13, the mixing barrel 1 can be heated.

[0023] like Figure 1As shown, a control box 17 is fixedly connected to the outer surface of the insulation sleeve 11, and the interior of the control box 17 is electrically connected to both ends of the heating resistance wire 13. By setting up the control box 17, the temperature and switch of the heating resistance wire 13 can be controlled, which is convenient for manual control.

[0024] like Figure 2 , Figure 3 and Figure 4 As shown, three stirring blades 14 are fixedly connected to the outer surface of the driving shaft 4, and two spiral blades 15 are fixedly connected to the outer surface of the three stirring blades 14. By setting the stirring blades 14, the material can be stirred. By setting the spiral blades 15, the material at the bottom can be continuously pushed to the upper part during the stirring process of the stirring blades 14, thereby further improving the mixing efficiency of the material.

[0025] like Figure 2 and Figure 3 As shown, the bottom end of the driving shaft 4 is rotatably connected to a stabilizing rod 16, and the top end of the stabilizing rod 16 is fixedly connected to the bottom ends of the two scrapers 10. By providing the stabilizing rod 16, the bottom ends of the scrapers 10 can be positioned, thereby improving the stability of the scrapers 10.

[0026] like Figure 2 , 3 As shown, a feed pipe 18 is connected through the top of the mixing barrel 1 , and a sealing cover 19 is inserted into the top of the feed pipe 18 . The sealing cover 19 can prevent foreign dust and other impurities from entering the mixing barrel 1 .

[0027] like Figure 2 and Figure 3 As shown, a discharge pipe 20 is connected through the bottom of the mixing barrel 1, and a sealing plug 21 is rotatably connected inside the discharge pipe 20. By setting the sealing plug 21, the discharge of raw materials can be controlled.

[0028] The utility model provides a thermoplastic polyurethane elastomer film production mixing device, the specific working principle is as follows:

[0029] The staff pours the thermoplastic polyurethane particles and other raw materials into the mixing barrel 1 from the feed pipe 18, and then starts the heating resistance wire 13 through the control box 17 to stir the inside of the mixing barrel 1. Under the heating action of the heating resistance wire 13, the thermoplastic polyurethane particles melt. Then the staff starts the motor 3, and the motor 3 drives the driving shaft 4 to rotate. The driving shaft 4 drives the stirring blade 14 and the spiral blade 15 to rotate. During the rotation of the driving shaft 4, it drives the No. 1 bevel gear 5 to rotate. During the rotation of the No. 1 bevel gear 5, the two No. 2 bevel gears 6 meshing with it drive the rotating sleeve 8 connected to the No. 3 bevel gear 7 to rotate in the opposite direction. During the rotation of the rotating sleeve 8, it drives the scraper 10 fixed to the connecting rod 9 to rotate and scrape the inner wall of the mixing barrel 1, so that the scraper 10 scrapes the raw material slurry adhered to the inner wall and pushes it into the middle of the mixing barrel 1 for stirring.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A thermoplastic polyurethane elastomer film production mixing device, comprising a stirring barrel (1), characterized in that: The top of the mixing barrel (1) is fixedly connected to a sealing shell (2) at the center position, the top of the sealing shell (2) is fixedly connected to a motor (3), the output end of the motor (3) is drivingly connected to a driving shaft (4), the outer surface of the driving shaft (4) and located inside the sealing shell (2) is fixedly connected to a first bevel gear (5), the inner side walls of the sealing shell (2) are rotatably connected to second bevel gears (6), the outer surfaces of the two second bevel gears (6) are meshed with the outer surface of the first bevel gear (5), the outer surface of the driving shaft (4) is rotatably connected to a rotating sleeve (8), the rotating sleeve (8) The outer surface of the rotating sleeve (8) is fixedly connected to a third bevel gear (7) at the top position, the outer surface of the third bevel gear (7) is meshed with the outer surfaces of the two second bevel gears (6), the bottom end of the rotating sleeve (8) passes through the top of the mixing barrel (1), the outer surface of the rotating sleeve (8) is rotatably connected to the top of the mixing barrel (1), the outer surface of the rotating sleeve (8) is fixedly connected to the outer surface of the rotating sleeve (8) and near the bottom end, two connecting rods (9) are fixedly connected to the bottom ends of the two connecting rods (9) and at the edge positions, and the outer surfaces of the scrapers (10) are in contact with the inner wall of the mixing barrel (1).

2. A thermoplastic polyurethane elastomer film production mixing device according to claim 1, characterized in that: The outer surface of the mixing barrel (1) is fixedly connected to a heat-insulating sleeve (11), the inner surface of the heat-insulating sleeve (11) is provided with a mounting groove (12), the inner surface of the mounting groove (12) is fixedly connected to a heating resistance wire (13), and the outer surface of the heating resistance wire (13) is in contact with the outer surface of the mixing barrel (1).

3. A thermoplastic polyurethane elastomer film production mixing device according to claim 2, characterized in that: The outer surface of the thermal insulation sleeve (11) is fixedly connected to a control box (17), and the interior of the control box (17) is electrically connected to both ends of the heating resistance wire (13).

4. A thermoplastic polyurethane elastomer film production mixing device according to claim 3, characterized in that: Three stirring blades (14) are fixedly connected to the outer surface of the driving shaft (4), and two spiral blades (15) are fixedly connected to the outer surfaces of the three stirring blades (14).

5. A thermoplastic polyurethane elastomer film production mixing device according to claim 4, characterized in that: The bottom end of the driving shaft (4) is rotatably connected to a stabilizing rod (16), and the top end of the stabilizing rod (16) is fixedly connected to the bottom ends of the two scrapers (10).

6. A thermoplastic polyurethane elastomer film production mixing device according to claim 1, characterized in that: The top end of the mixing barrel (1) is connected through a feed pipe (18), and the top end of the feed pipe (18) is plugged with a sealing cover (19).

7. A thermoplastic polyurethane elastomer film production mixing device according to claim 6, characterized in that: A discharge pipe (20) is connected through the bottom of the mixing barrel (1), and a sealing plug (21) is rotatably connected inside the discharge pipe (20).

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