Stirring device for recycled polyester process

Through the coordination of the stirring mechanism driven by the servo motor and the scraper plate, the problems of material precipitation and stickiness in the polyester stirring device are solved, efficient stirring and waste reduction, and the stability and convenience of the equipment are enhanced.

CN223290085UActive Publication Date: 2025-09-02NANJING SANYE AGITATOR SYST CO LTD
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Patent Information

Application Number
CN202422086566.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-27
Publication Date
2025-09-02
Estimated Expiration
2034-08-27

AI Technical Summary

Technical Problem

During the stirring process, existing polyester stirring devices have problems such that materials precipitate and stick to the kettle wall, resulting in uneven stirring and waste of materials.

Method used

The mixing mechanism driven by a servo motor is adopted, combined with a bevel gear and a synchronous transmission belt, to achieve the coordinated work of the mixing rod and the scraper plate. The active bevel gear is driven by the servo motor, the transmission is driven to rotate the mixing box, and the two-way motor drives the mixing rod to rotate. The scraper plate cleans the inner wall to avoid material precipitation and sticking.

Benefits of technology

Effectively reduce material precipitation, improve mixing uniformity, avoid material waste, enhance equipment stability, and improve operational convenience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a stirring device for a recycled polyester process, which comprises a stirring box and a mounting frame, the mounting frame is clamped on the surface of the stirring box, and a stirring mechanism is arranged on the surface of the stirring box. The stirring mechanism comprises a servo motor, a first driving bevel gear, a first connecting rod, a box body, a bidirectional motor, a stirring rod, a second connecting rod and a mounting rod, the stirring mechanism is arranged, the stirring position of the stirring rod is adjusted, and the stirring direction of a stirring plate is opposite to the stirring direction of the stirring rod; according to the stirring device, materials in the inner cavity of the stirring box can be rapidly stirred, the situation that the materials are precipitated in the stirring process is effectively reduced, meanwhile, in the stirring process, the scraping plate continuously scrapes the materials on the inner wall of the stirring box, and the situation that the materials adhere to the interior of the stirring box and cannot be discharged, and consequently the materials are wasted is effectively avoided; and the use convenience of the equipment is improved, and an operator can use the equipment conveniently.
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Description

Technical Field

[0001] The utility model relates to a stirring device for a recycled polyester process, belonging to the technical field of polyester processing. Background Art

[0002] Polyester is a general term for polymers derived from the polycondensation of polyols and polyacids. It primarily refers to polyethylene terephthalate (PET), but also conventionally includes linear thermoplastic resins such as polybutylene terephthalate (PBTE) and polyarylates. It is a class of engineering plastics with excellent performance and a wide range of applications. It can also be made into polyester fibers and polyester films. Polyesters include polyester resins and polyester elastomers. Polyester resins include polyethylene terephthalate (PET), polybutylene terephthalate (PBTE), and polyarylates. Polyester elastomers are generally formed by the polymerization of dimethyl terephthalate (DMT), 1,4-butanediol (BTA), and polybutanol. Their chain segments consist of hard and soft segments, making them thermoplastic elastomers.

[0003] A Chinese patent publication (publication number: CN 209848776 U) discloses a stirring device for polyester resin, comprising an equipment main body, on which a stirring assembly is installed; the stirring assembly comprises a drive motor installed on the upper head, and a stirring shaft connected to the output shaft of the drive motor, the stirring shaft extending to the lower part of the equipment main body; a plurality of stirring blade groups are arranged at intervals on the stirring shaft of the stirring assembly; the stirring blade group comprises a blade frame fixedly connected to the stirring shaft, and a plurality of blades distributed in the blade frame; a stirring channel for the passage of raw materials is reserved between the blades of the stirring blade group and the blade frame, and part of the raw materials can pass through the stirring channel when the polyester resin is stirred. The stirring device of the utility model is designed with a blade frame that strengthens the strength of the blades, and forms a mesh structure with a larger coverage area with the stirring shaft, thereby improving the stirring effect and avoiding impact and damage to the blades when encountering large resistance;

[0004] Although the above-mentioned device can stir and mix polyester, during the stirring process, some materials may precipitate because they are not within the stirring range of the stirring rod, resulting in the inability to fully mix the precipitated materials, making the materials not stirred evenly. At the same time, during the stirring process, some materials may also stick to the inner wall of the reactor. These materials cannot be discharged normally due to adhesion, which may affect the normal stirring of subsequent materials. It will also cause waste of materials due to the inability to be discharged, making it inconvenient for operators to use.

[0005] Therefore, a stirring device for recycled polyester process is proposed. Utility Model Content

[0006] In view of this, the present invention provides a stirring device for a recycled polyester process to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial option.

[0007] The technical solution of the utility model is achieved as follows: a stirring device for a recycled polyester process comprises a stirring box and a mounting frame, wherein the mounting frame is clamped to the surface of the stirring box, a feed valve port is installed on the right side of the stirring box, a discharge valve port is installed at the bottom of the stirring box, and support rods are installed around the bottom of the mounting frame;

[0008] A stirring mechanism is provided on the surface of the mixing box, and the stirring mechanism includes a servo motor, a first active bevel gear, a first connecting rod, a box body, a bidirectional motor, a stirring rod, a second connecting rod and a mounting rod. The servo motor is installed on the left side of the mounting frame, and the first active bevel gear is connected to the output end of the servo motor. The box body is located at the top of the inner cavity of the mixing box, and the bidirectional motor is installed at the bottom of the inner cavity of the box. The two stirring rods are located on the left and right sides of the bottom of the box body, and the mounting rod is located at the bottom of the inner cavity of the mixing box. A stirring plate is installed on the surface of the mounting rod, and a scraper plate is installed on the surface of the mounting rod and on the top of the stirring plate.

[0009] Further preferably, the top of the mixing box is movably connected to an active synchronous shaft, the top of the box body is connected to the bottom of the active synchronous shaft, the left side of the top of the mounting frame is movably connected to a driven synchronous shaft, and the surfaces of the active synchronous shaft and the driven synchronous shaft are movably connected to a first synchronous transmission belt.

[0010] Further preferably, the first connecting rod is mounted on the bottom of the driven synchronous shaft, a first driven bevel gear is mounted on the bottom of the first connecting rod, and a surface of the first driven bevel gear is meshed with a surface of the first driving bevel gear.

[0011] Further preferably, the bottom of the mixing box is movably connected to the main synchronous shaft, the bottom of the mounting rod is connected to the top of the main synchronous shaft, the left side of the bottom of the mounting frame is movably connected to the secondary synchronous shaft, and the surfaces of the main synchronous shaft and the secondary synchronous shaft are movably connected to a second synchronous transmission belt.

[0012] Further preferably, the second connecting rod is mounted on the top of the secondary synchronization shaft, a second driven bevel gear is mounted on the top of the second connecting rod, and a surface of the second driven bevel gear is meshed with a surface of the first driving bevel gear.

[0013] Further preferably, the output ends on the left and right sides of the bidirectional motor are connected to main bevel gears, and the left and right sides of the top of the inner cavity of the main bevel gear are movably connected to auxiliary bevel gears, the surfaces of the two auxiliary bevel gears are meshed with the surfaces of the two main bevel gears, and the tops of the two stirring rods are connected to the bottoms of the two auxiliary bevel gears.

[0014] Further preferably, the surfaces of the second connecting rod and the first connecting rod are both movably connected with support plates, and the support plates are installed on the upper and lower sides of the surface of the mounting bracket.

[0015] Further preferably, a base plate is installed at the bottom of each of the four support rods, and anchor bolts are threadedly connected to the front and rear sides of the tops of the two base plates.

[0016] The embodiment of the present invention has the following advantages due to the adoption of the above technical solution:

[0017] 1. The utility model sets a stirring mechanism. Through the output of the servo motor, the first active bevel gear drives the first driven bevel gear to rotate. At this time, the first driven bevel gear drives the box body to rotate through the transmission. As the box body rotates, the stirring rod begins to move in the circumferential direction. Then, through the output of the bidirectional motor, the main bevel gear drives the auxiliary bevel gear and the stirring rod to rotate. The stirring rod stirs the material in the inner cavity of the stirring box. At the same time, with the output of the servo motor, the first active bevel gear drives the second driven bevel gear to rotate, and through the transmission of the second driven bevel gear, at this time The main synchronous shaft drives the mounting rod to rotate, and drives the stirring plate and the scraper plate to rotate through the mounting rod. By adjusting the stirring position of the stirring rod and the stirring direction of the stirring plate is opposite to the stirring direction of the stirring rod, the material in the inner cavity of the mixing box can be quickly stirred, effectively reducing the sedimentation of the material during the stirring process. At the same time, during the stirring process, the scraper plate continuously scrapes the material on the inner wall of the mixing box, effectively avoiding the material sticking to the inside of the mixing box and being unable to be discharged, thereby causing material waste, improving the convenience of equipment use, reducing material waste, and facilitating operator use.

[0018] 2. The present invention can support the first connecting rod and the second connecting rod by providing a support plate, thereby preventing the first connecting rod and the second connecting rod from bending due to their own weight after long-term use, resulting in the first driven bevel gear and the second driven bevel gear being unable to engage with the first active bevel gear, thereby affecting the normal mixing work of the equipment. By providing anchor bolts, the entire equipment can be stabilized, thereby preventing the equipment from shaking due to the rotation of the stirring rod during the mixing work, thereby causing the equipment to fall over and affecting the normal development of the mixing work.

[0019] The above summary is for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the present invention will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0021] Figure 1 This is a schematic diagram of the three-dimensional front view structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the support plate structure of the present utility model;

[0023] Figure 3 This is a schematic diagram of the synchronous shaft structure of the utility model;

[0024] Figure 4 This is a schematic diagram of the internal structure of the mixing box of the present utility model;

[0025] Figure 5 This is a schematic structural diagram of the stirring mechanism of the present utility model.

[0026] Figure numerals: 1, mixing box; 2, mixing mechanism; 201, servo motor; 202, first driving bevel gear; 203, driving synchronous shaft; 204, driven synchronous shaft; 205, first synchronous transmission belt; 206, first connecting rod; 207, first driven bevel gear; 208, box body; 209, bidirectional motor; 210, main bevel gear; 211, secondary bevel gear; 212, stirring rod; 213, main synchronous shaft; 214, secondary synchronous shaft; 215, second synchronous transmission belt; 216, second connecting rod; 217, second driven bevel gear; 218, mounting rod; 219, stirring plate; 220, scraper plate; 3, feed valve port; 4, discharge valve port; 5, mounting frame; 6, support rod; 7, bottom plate; 8, anchor bolt; 9, support plate. DETAILED DESCRIPTION

[0027] Hereinafter, only certain exemplary embodiments are briefly described. As will be appreciated by those skilled in the art, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are to be regarded as illustrative in nature and not restrictive.

[0028] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0029] Example 1

[0030] like Figure 1-5 As shown, an embodiment of the utility model provides a stirring device for a recycled polyester process, comprising a stirring box 1 and a mounting frame 5, wherein the mounting frame 5 is snapped onto the surface of the stirring box 1, a feed valve port 3 is installed on the right side of the stirring box 1, a discharge valve port 4 is installed at the bottom of the stirring box 1, and support rods 6 are installed around the bottom of the mounting frame 5.

[0031] A stirring mechanism 2 is provided on the surface of the mixing box 1, and the stirring mechanism 2 includes a servo motor 201, a first active bevel gear 202, a first connecting rod 206, a box body 208, a bidirectional motor 209, a stirring rod 212, a second connecting rod 216 and a mounting rod 218. The servo motor 201 is installed on the left side of the mounting frame 5, and the first active bevel gear 202 is connected to the output end of the servo motor 201. The box body 208 is located at the top of the inner cavity of the mixing box 1, and the bidirectional motor 209 is installed at the bottom of the inner cavity of the box body 208. The two stirring rods 212 are both located on the left and right sides of the bottom of the box body 208. The mounting rod 218 is located at the bottom of the inner cavity of the mixing box 1. A stirring plate 219 is installed on the surface of the mounting rod 218, and a scraper plate 220 is installed on the surface of the mounting rod 218 and at the top of the stirring plate 219.

[0032] The top of the mixing box 1 is movably connected to the active synchronous shaft 203, the top of the box body 208 is connected to the bottom of the active synchronous shaft 203, the left side of the top of the mounting frame 5 is movably connected to the driven synchronous shaft 204, the surfaces of the active synchronous shaft 203 and the driven synchronous shaft 204 are movably connected to the first synchronous transmission belt 205, the first connecting rod 206 is installed at the bottom of the driven synchronous shaft 204, the bottom of the first connecting rod 206 is installed with the first driven bevel gear 207, the surface of the first driven bevel gear 207 is meshed with the surface of the first active bevel gear 202, the bottom of the mixing box 1 is movably connected to the main synchronous shaft 213, the bottom of the mounting rod 218 is connected to the top of the main synchronous shaft 213, and the left side of the bottom of the mounting frame 5 is movably connected to the secondary synchronous shaft 214.

[0033] The surfaces of the main synchronous shaft 213 and the secondary synchronous shaft 214 are movably connected with a second synchronous transmission belt 215, the second connecting rod 216 is installed on the top of the secondary synchronous shaft 214, and the top of the second connecting rod 216 is installed with a second driven bevel gear 217. The surface of the second driven bevel gear 217 is meshed with the surface of the first driving bevel gear 202. The output ends on both sides of the bidirectional motor 209 are connected to the main bevel gear 210, and the left and right sides of the top of the inner cavity of the main bevel gear 210 are movably connected with secondary bevel gears 211. The surfaces of the two secondary bevel gears 211 are meshed with the surfaces of the two main bevel gears 210, and the tops of the two stirring rods 212 are connected to the bottoms of the two secondary bevel gears 211.

[0034] By setting up the stirring mechanism 2, the output of the servo motor 201 is used to make the first active bevel gear 202 drive the first driven bevel gear 207 to rotate. At this time, the first driven bevel gear 207 drives the active synchronous shaft 203 to drive the box 208 to rotate. As the box 208 rotates, the stirring rod 212 begins to move in the circumferential direction. Then, through the output of the bidirectional motor 209, the main bevel gear 210 drives the secondary bevel gear 211 and the stirring rod 212 to rotate, and the stirring rod 212 stirs the material in the inner cavity of the mixing box 1.

[0035] At the same time, with the output of the servo motor 201, the first active bevel gear 202 drives the second driven bevel gear 217 to rotate, and through the transmission of the second driven bevel gear 217, the main synchronous shaft 213 drives the mounting rod 218 to rotate, and drives the stirring plate 219 and the scraper plate 220 to rotate through the mounting rod 218. By adjusting the stirring position of the stirring rod 212 and the stirring direction of the stirring plate 219 is opposite to the stirring direction of the stirring rod 212, the material in the inner cavity of the mixing box 1 can be quickly stirred, and the sedimentation of the material during the stirring process can be effectively reduced. At the same time, during the stirring process, the scraper plate 220 continues to scrape the material on the inner wall of the mixing box 1, effectively preventing the material from sticking to the inside of the mixing box 1 and being unable to be discharged, thereby causing material waste, thereby improving the convenience of equipment use, reducing material waste, and facilitating use by operators.

[0036] Example 2

[0037] In one embodiment, the surfaces of the second connecting rod 216 and the first connecting rod 206 are movably connected with support plates 9, and the support plates 9 are installed on the upper and lower sides of the surface of the mounting frame 5. The bottoms of the four support rods 6 are installed with base plates 7, and the front and rear sides of the tops of the two base plates 7 are threadedly connected with anchor bolts 8.

[0038] By providing the support plate 9, the first connecting rod 206 and the second connecting rod 216 can be supported to prevent the first connecting rod 206 and the second connecting rod 216 from bending due to their own weight after long-term use, resulting in the first driven bevel gear 207 and the second driven bevel gear 217 being unable to engage with the first active bevel gear 202, thereby affecting the normal mixing work of the equipment. By providing the anchor bolt 8, the entire equipment can be stabilized to prevent the equipment from shaking due to the rotation of the stirring rod 212 during the mixing work, thereby causing the equipment to fall over and affecting the normal mixing work.

[0039] When the utility model is working: first, the material is injected into the inner cavity of the mixing box 1 through the feed valve port 3, and then the first active bevel gear 202 is rotated by the output of the servo motor 201, and the first driven bevel gear 207 and the second driven bevel gear 217 are rotated synchronously. When the first driven bevel gear 207 rotates, the first connecting rod 206 is rotated synchronously, and the driven synchronous shaft 204 is rotated. At this time, the driven synchronous shaft 204 cooperates with the first synchronous transmission belt 205 to drive the active synchronous shaft 203 to rotate, and the box body 208 drives the stirring rod 212 to move in the circumferential direction. Then, through the output of the bidirectional motor 209, the main bevel gear 210 is rotated, and the auxiliary bevel gear 211 is driven to rotate synchronously. The rotation of the secondary bevel gear 211 causes the stirring rod 212 to rotate and starts stirring. At the same time, through the rotation of the second driven bevel gear 217, the second connecting rod 216 drives the secondary synchronous shaft 214 to rotate, and through the cooperation of the secondary synchronous shaft 214 and the second synchronous transmission belt 215, the main synchronous shaft 213 rotates and drives the mounting rod 218 to rotate. At this time, due to the rotation of the mounting rod 218, the stirring plate 219 and the scraper plate 220 rotate synchronously. Through the rotation of the stirring plate 219, the precipitated material is stirred again and flows. At the same time, the scraper plate 220 scrapes off the material stuck to the inner wall of the mixing box 1. When the material is stirred, it is discharged from the inner cavity of the mixing box 1 through the discharge valve port 4, completing the stirring of the entire material.

[0040] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various modifications or substitutions within the technical scope disclosed in the present invention, and such modifications or substitutions are intended to be within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope of protection of the claims.

Claims

1. A stirring device for a recycled polyester process, comprising a stirring box (1) and a mounting frame (5), characterized in that: The mounting frame (5) is clamped on the surface of the mixing box (1), a feed valve port (3) is installed on the right side of the mixing box (1), a discharge valve port (4) is installed on the bottom of the mixing box (1), and support rods (6) are installed around the bottom of the mounting frame (5); The surface of the mixing box (1) is provided with a mixing mechanism (2), the mixing mechanism (2) comprising a servo motor (201), a first active bevel gear (202), a first connecting rod (206), a box body (208), a bidirectional motor (209), a mixing rod (212), a second connecting rod (216) and a mounting rod (218), the servo motor (201) being mounted on the left side of the mounting frame (5), the first active bevel gear (202) being connected to the output of the servo motor (201), and the first connecting rod (216) being connected to the output of the servo motor (201). The box body (208) is located at the top of the inner cavity of the mixing box (1), the bidirectional motor (209) is installed at the bottom of the inner cavity of the box body (208), the two stirring rods (212) are located on the left and right sides of the bottom of the box body (208), the mounting rod (218) is located at the bottom of the inner cavity of the mixing box (1), the surface of the mounting rod (218) is installed with a stirring plate (219), and the surface of the mounting rod (218) and the top of the stirring plate (219) are installed with a scraper plate (220).

2. The stirring device for recycled polyester process according to claim 1, characterized in that: The top of the mixing box (1) is movably connected to an active synchronous shaft (203), the top of the box body (208) is connected to the bottom of the active synchronous shaft (203), the left side of the top of the mounting frame (5) is movably connected to a driven synchronous shaft (204), and the surfaces of the active synchronous shaft (203) and the driven synchronous shaft (204) are movably connected to a first synchronous transmission belt (205).

3. The stirring device for recycled polyester process according to claim 2, characterized in that: The first connecting rod (206) is mounted on the bottom of the driven synchronous shaft (204), and a first driven bevel gear (207) is mounted on the bottom of the first connecting rod (206), and the surface of the first driven bevel gear (207) is meshed with the surface of the first driving bevel gear (202).

4. The stirring device for recycled polyester process according to claim 1, characterized in that: The bottom of the mixing box (1) is movably connected to a main synchronous shaft (213), the bottom of the mounting rod (218) is connected to the top of the main synchronous shaft (213), the left side of the bottom of the mounting frame (5) is movably connected to a secondary synchronous shaft (214), and the surfaces of the main synchronous shaft (213) and the secondary synchronous shaft (214) are movably connected to a second synchronous transmission belt (215).

5. The stirring device for recycled polyester process according to claim 4, characterized in that: The second connecting rod (216) is mounted on the top of the secondary synchronization shaft (214), and a second driven bevel gear (217) is mounted on the top of the second connecting rod (216), wherein the surface of the second driven bevel gear (217) is meshed with the surface of the first driving bevel gear (202).

6. The stirring device for recycled polyester process according to claim 1, characterized in that: The output ends on both the left and right sides of the bidirectional motor (209) are connected to main bevel gears (210), and the left and right sides of the top of the inner cavity of the main bevel gear (210) are movably connected to auxiliary bevel gears (211), the surfaces of the two auxiliary bevel gears (211) are meshed with the surfaces of the two main bevel gears (210), and the tops of the two stirring rods (212) are connected to the bottoms of the two auxiliary bevel gears (211).

7. The stirring device for recycled polyester process according to claim 1, characterized in that: The surfaces of the second connecting rod (216) and the first connecting rod (206) are both movably connected to support plates (9), and the support plates (9) are mounted on the upper and lower sides of the surface of the mounting frame (5).

8. The stirring device for recycled polyester process according to claim 1, characterized in that: The bottoms of the four support rods (6) are all installed with base plates (7), and the front and rear sides of the tops of the two base plates (7) are both threadedly connected with anchor bolts (8).

Citation Information

Patent Citations

  • Polyester resin stirring device

    CN209848776U