PET stirring device

Abstract

The utility model discloses a PET (Polyethylene Terephthalate) stirring device which comprises a PET raw material stirring tank body, a tank cover is arranged above the PET raw material stirring tank body, a feeding hopper is arranged in the middle of the upper part of the tank cover, a stirring motor is arranged in the center of the interior of the feeding hopper, the lower end of the stirring motor is connected with a stirring shaft, and the lower end of the stirring shaft is connected with a motor. A hollow groove is formed in the stirring shaft, a short stirring rod and a long stirring rod are arranged at the upper position and the lower position of the two sides of the stirring shaft respectively, and a fixing base is arranged at the center of the bottom end in the PET raw material stirring tank body. The hollow groove is formed in the stirring shaft, the second heating pipe can be embedded and mounted in the stirring shaft through the hollow groove, so that the stirring shaft and the second heating pipe are combined into a whole, heat can be diffused from inside to outside through the mounting mode, and internal and external heating can be achieved through combination with the first heating pipe; therefore, the raw material heating uniformity is improved, and meanwhile, the raw material heating speed is also increased.

Description

Technical Field

[0001] The utility model relates to the field related to PET production, in particular to a PET stirring device. Background Art

[0002] PET plastic is a polyethylene terephthalate plastic, mainly including polyethylene terephthalate (PET) and polybutylene terephthalate (PBT). Polybutylene terephthalate, also commonly known as polyester resin, is a condensation product of terephthalic acid and ethylene glycol. Together with PBT, it is collectively referred to as thermoplastic polyester, or saturated polyester. The molecular structure of PET plastic is highly symmetrical and has a certain crystal orientation ability, so it has high film-forming and film-forming properties. PET plastic has excellent optical properties and weather resistance, and amorphous PET plastic has good optical transparency.

[0003] There are still certain deficiencies in the use of PET stirring devices in the existing technology. The heating mechanism on the traditional PET stirring tank is usually set on the tank wall. Generally, heat is slowly transferred from the outside to the inside, the heating speed is slow, and the raw materials located in the center are not easily exposed to the heat, resulting in uneven heating of the raw materials, which affects the effect of raw material stirring. Summary of the Invention

[0004] The purpose of the present utility model is to provide a PET stirring device to solve the problem proposed in the above background technology that the heating mechanism on the traditional PET stirring tank is usually arranged at the position of the tank wall, generally the heat is slowly transferred from the outside to the inside, the heating speed is slow, and the raw materials located at the center are not easily exposed to the heat, resulting in uneven heating of the raw materials and affecting the effect of raw material stirring.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a PET stirring device, comprising a PET raw material stirring tank body, a tank cover is provided above the PET raw material stirring tank body, a feed hopper is provided in the middle position above the tank cover, a stirring motor is provided at the center position inside the feed hopper, the lower end of the stirring motor is connected to the stirring shaft, a hollow groove is provided inside the stirring shaft, a short stirring rod and a long stirring rod are provided at the upper and lower positions on both sides of the stirring shaft respectively, a fixed seat is provided at the center position of the bottom end of the inside of the PET raw material stirring tank body, a heating tank is provided outside the PET raw material stirring tank body, an inspection cover is provided outside the heating tank, a first heating tube is provided inside the heating tank, supporting legs are provided below both sides of the PET raw material stirring tank body, a heater is provided at the center position of the bottom of the PET raw material stirring tank body, a second heating tube is provided above the heater, and a discharge port is provided on one side of the bottom of the PET raw material stirring tank body.

[0006] In a further embodiment, an inner sealing ring is provided between the tank cover and the PET raw material stirring tank body, and the tank cover and the PET raw material stirring tank body are fixedly connected by fastening bolts.

[0007] In a further embodiment, the feed hopper and the tank cover are fixedly connected via a material guide tube, and the material guide tube is configured as an inclined structure.

[0008] In a further embodiment, a motor sealing cover is provided on the outside of the stirring motor, and the motor sealing cover is made of aluminum.

[0009] In a further embodiment, the second heating tube is connected to the fixing seat by being embedded, and the stirring shaft is rotatably connected to the fixing seat by a coordinated combined rotating sleeve.

[0010] In a further embodiment, a scraper is provided at one end of the long stirring rod, and the scraper is connected to the long stirring rod in a T-shaped structure.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] In the utility model, a hollow groove is provided inside the stirring shaft, and the second heating tube can be embedded and installed inside the stirring shaft through the hollow groove, so that the stirring shaft and the second heating tube are combined into one. This installation method can make the heat diffuse from the inside to the outside. Combined with the first heating tube, internal and external heating can be achieved, thereby improving the uniformity of raw material heating. At the same time, it also increases the speed of raw material heating and enhances the effect of raw material stirring. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the internal structure of a PET stirring device of the present invention;

[0014] Figure 2 This is a schematic diagram of the cross-sectional structure of the stirring shaft of the present utility model;

[0015] Figure 3 This is a front view of the second heating tube of the present invention;

[0016] Figure 4 A top view of the stirring shaft of the present invention;

[0017] Figure 5 This is a top view of the PET raw material stirring tank of the present utility model;

[0018] Figure 6 This is a front view of a PET stirring device of the present invention.

[0019] In the figure: 1. Feed hopper; 2. Stirring motor; 3. Motor sealing cover; 4. Material guide pipe; 5. Fastening bolts; 6. Tank cover; 7. Inner sealing ring; 8. PET raw material stirring tank body; 9. Heating tank; 10. First heating tube; 11. Stirring shaft; 12. Supporting footrest; 13. Discharge port; 14. Fixed seat; 15. Heater; 16. Hollow tank; 17. Short stirring rod; 18. Long stirring rod; 19. Scraper; 20. Second heating tube; 21. Coordination combination rotating sleeve; 22. Inspection cover. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] See also Figure 1-6 , the utility model provides an embodiment: a PET stirring device, including a PET raw material stirring tank body 8, a tank cover 6 is provided above the PET raw material stirring tank body 8, a feed hopper 1 is provided in the middle position above the tank cover 6, a stirring motor 2 is provided at the center position inside the feed hopper 1, the lower end of the stirring motor 2 is connected to the stirring shaft 11, a hollow groove 16 is provided inside the stirring shaft 11, and a short stirring rod 17 and a long stirring rod 18 are provided at the upper and lower positions on both sides of the stirring shaft 11 respectively, a fixing seat 14 is provided at the center position of the bottom end of the interior of the PET raw material stirring tank body 8, a heating tank 9 is provided outside the PET raw material stirring tank body 8, an inspection cover 22 is provided outside the heating tank 9, a first heating tube 10 is provided inside the heating tank 9, and support legs 12 are provided below both sides of the PET raw material stirring tank body 8, A heater 15 is provided at the center of the bottom of the body 8, and a second heating tube 20 is provided above the heater 15. A discharge port 13 is provided on one side of the bottom of the PET raw material stirring tank body 8; the tank cover 6 is used to seal the PET raw material stirring tank body 8, the feed hopper 1 is used to pour the raw materials, the stirring motor 2 is used to provide power to the stirring shaft 11, the stirring shaft 11 is used to drive the short stirring rod 17 and the long stirring rod 18 to rotate, the short stirring rod 17 and the long stirring rod 18 are used to stir and mix the raw materials, the fixing seat 14 is used to increase the firmness of the installation of the second heating tube 20, the heating groove 9 is used to install and fix the first heating tube 10, the first heating tube 10 is used to heat the outside of the PET raw material stirring tank body 8, and the second heating tube 20 is used to heat the inside of the PET raw material stirring tank body 8.

[0022] An inner sealing ring 7 is provided between the tank cover 6 and the PET raw material mixing tank body 8, and the tank cover 6 and the PET raw material mixing tank body 8 are fixedly connected by fastening bolts 5. The inner sealing ring 7 is used to increase the sealing performance of the installation of the tank cover 6, and the fastening bolts 5 are used to fix the position of the tank cover 6; the feed hopper 1 and the tank cover 6 are fixedly connected by a material guide pipe 4, and the material guide pipe 4 is set to an inclined structure, and the material guide pipe 4 is used to guide the direction of raw material transportation.

[0023] A motor sealing cover 3 is provided on the outside of the stirring motor 2 , and the motor sealing cover 3 is made of aluminum. The motor sealing cover 3 is used to seal and protect the stirring motor 2 .

[0024] The second heating tube 20 is connected to the fixed seat 14 by inlaying, and the stirring shaft 11 is rotatably connected to the fixed seat 14 by a coordinated combination rotating sleeve 21. The inlay connection facilitates the assembly and fixation of the second heating tube 20 and the fixed seat 14, and the coordinated combination rotating sleeve 21 enables the stirring shaft 11 and the fixed seat 14 to operate in coordination.

[0025] A scraper 19 is provided at one end of the long stirring rod 18 , and the scraper 19 is connected to the long stirring rod 18 in a T-shaped structure. The scraper 19 is used to scrape and clean the raw materials adhered to the tank wall.

[0026] Working principle: When in use, pour the PET raw material into the feed hopper 1, and the PET raw material is divided into multiple positions through the material guide pipe 4 and transported downward to the PET raw material stirring tank body 8, and the mixed liquid is injected. The electrical energy is converted into mechanical energy through the stirring motor 2 to drive the stirring shaft 11 to rotate at a constant speed, and the raw material is stirred by the short stirring rod 17 and the long stirring rod 18. The outside and inside of the PET raw material stirring tank body 8 are heated by the first heating tube 10 and the second heating tube 20, and then discharged through the discharge port 13.

[0027] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A PET stirring device, comprising a PET raw material stirring tank (8), characterized in that: A tank cover (6) is provided above the PET raw material stirring tank body (8), a feed hopper (1) is provided at a middle position above the tank cover (6), a stirring motor (2) is provided at a center position inside the feed hopper (1), the lower end of the stirring motor (2) is connected to a stirring shaft (11), a hollow groove (16) is provided inside the stirring shaft (11), a short stirring rod (17) and a long stirring rod (18) are provided at upper and lower positions on both sides of the stirring shaft (11), and a fixing seat (16) is provided at a center position of the bottom end inside the PET raw material stirring tank body (8). 14), a heating tank (9) is provided on the outside of the PET raw material stirring tank (8), an inspection cover (22) is provided on the outside of the heating tank (9), a first heating tube (10) is provided on the inside of the heating tank (9), support legs (12) are provided below both sides of the PET raw material stirring tank (8), a heater (15) is provided at the center of the bottom of the PET raw material stirring tank (8), a second heating tube (20) is provided above the heater (15), and a discharge port (13) is provided on one side of the bottom of the PET raw material stirring tank (8).

2. A PET stirring device according to claim 1, characterized in that: An inner sealing ring (7) is provided between the tank cover (6) and the PET raw material stirring tank body (8), and the tank cover (6) and the PET raw material stirring tank body (8) are fixedly connected via fastening bolts (5).

3. A PET stirring device according to claim 1, characterized in that: The feed hopper (1) and the tank cover (6) are fixedly connected via a material guide pipe (4), and the material guide pipe (4) is configured as an inclined structure.

4. A PET stirring device according to claim 1, characterized in that: A motor sealing cover (3) is provided on the outside of the stirring motor (2), and the motor sealing cover (3) is made of aluminum.

5. A PET stirring device according to claim 1, characterized in that: The second heating tube (20) is connected to the fixing seat (14) by being embedded, and the stirring shaft (11) is rotationally connected to the fixing seat (14) by a coordinated combined rotating sleeve (21).

6. A PET stirring device according to claim 1, characterized in that: One end of the long stirring rod (18) is provided with a scraper (19), and the scraper (19) and the long stirring rod (18) are connected to form a T-shaped structure.

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