Petg small test polymerization device with cleaning function

By introducing a scraper and collection box design into the PETG pilot polymerization unit, the problem of difficult cleaning due to material adhesion was solved, automated cleaning was achieved, labor intensity was reduced, and the operating efficiency of the unit was improved.

CN224485972UActive Publication Date: 2026-07-14HENAN YUANHONG POLYMER NEW MATERIAL CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HENAN YUANHONG POLYMER NEW MATERIAL CO LTD
Filing Date
2025-08-07
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

After processing, the material tends to adhere to the existing PETG polymerization equipment, making cleaning difficult and increasing the workload of the workers.

Method used

A pilot-scale PETG polymerization device with cleaning function was designed, comprising a support, a polymerization body, a casting head body, a scraper, and a power unit. The scraper automatically cleans the material on the casting head body, and the cleaned material is collected through a collection box, simplifying the cleaning process.

Benefits of technology

The automated cleaning function reduces material adhesion to the casting head body, lowers the cleaning burden on workers, and improves the operating efficiency and convenience of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to petg processing technical field, specifically disclose a kind of petg small test polymerization device with cleaning function, including support, be provided with polymerization body on support, be provided with cast strip head body on polymerization body, it is fixedly connected with support plate on the support, the side of support plate is equipped with moving groove, the inside sliding connection of moving groove has the moving rod extending to the outside of moving groove, the inside of moving rod is equipped with two installation grooves, the inside sliding connection of installation groove has mounting bracket, the petg small test polymerization device with cleaning function, moving rod can be scraped and cleaned to the material adhered on cast strip head body by scraper, make cast strip head body keep clean, reduce material adhered on cast strip head body to some extent, reduce manual cleaning of staff, material scraped by scraper can be collected by collecting box.
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Description

Technical Field

[0001] This utility model relates to the field of PETG processing technology, specifically to a PETG pilot polymerization device with a cleaning function. Background Technology

[0002] PETG (polyethylene terephthalate-1,4-cyclohexanediethanol) is a transparent, non-crystalline copolyester. The commonly used comonomer for PETG is 1,4-cyclohexanediethanol. It is a product of transesterification polymerization of terephthalic acid (PTA), ethylene glycol (EG), and 1,4-cyclohexanediethanol (CHDM). Compared to PET, it contains the 1,4-cyclohexanediethanol comonomer, and compared to PCT, it contains the ethylene glycol comonomer. Therefore, the properties of PETG are quite different from those of PET and PCT.

[0003] Research revealed that some existing PETG processes require polymerization and extrusion. However, in some existing polymerization devices, material tends to adhere to the device after processing. Once the material solidifies, workers need to use tools to remove it, which increases the workload for the workers. To address this issue, technological innovations will be implemented based on existing devices. Utility Model Content

[0004] The purpose of this invention is to provide a PETG pilot polymerization device with a cleaning function to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a PETG pilot polymerization device with cleaning function, comprising a support, a polymerization body mounted on the support, a casting head body mounted on the polymerization body, a support plate fixedly connected to the support, a movable groove on one side of the support plate, a movable rod extending to the outside of the movable groove slidably connected inside the movable groove, two mounting grooves inside the movable rod, mounting frames slidably connected inside the mounting grooves, a scraper fixedly connected to the top of the mounting frames, a power device inside the movable rod, the power device controlling the locking or unlocking of the mounting frames in the mounting grooves, and a collection box at the bottom of the movable rod.

[0006] Preferably, a connecting rod is fixedly connected inside the collection box, a positioning rod is fixedly connected to the top of the connecting rod, and a positioning groove is provided at the bottom of the moving rod. The positioning groove and the positioning rod are both trapezoidal in cross-section. The positioning groove and the positioning rod cooperate with each other, and the positioning rod is fixedly installed on the moving rod by bolts.

[0007] Preferably, the top of the movable rod is provided with a guide groove, and the top of the connecting rod is fixedly connected with a blocking rod located on one side of the positioning rod, the blocking rod limiting the end face of the movable rod.

[0008] Preferably, a motor is fixedly connected inside the movable groove, and a threaded rod is fixedly connected to the output end of the motor through a coupling. The end of the threaded rod away from the motor is rotatably connected to the inner wall of the movable groove, and the surface of the threaded rod is threadedly connected to the inside of the movable rod.

[0009] Preferably, the power slot has a first power frame and a second power frame slidably connected inside. Both the first power frame and the second power frame have a U-shaped cross section. A gear is rotatably connected inside the power slot. The gear is located between the first power frame and the second power frame. Both the first power frame and the second power frame have teeth on the side near the gear. Both the first power frame and the second power frame are connected to the surface of the gear through the teeth. A handle is fixedly connected to the top of the gear. The handle is rotatably connected to the moving rod, and the top of the handle is located outside the moving rod.

[0010] Preferably, a fixing frame is fixedly connected to one side of both the first power frame and the second power frame. The fixing frame has an L-shaped cross-section and an inclined surface on one side. A fixing groove is provided on the side of the mounting frame near the fixing frame, and the surface of the fixing frame is inserted into the inside of the fixing groove.

[0011] Preferably, a spring is fixedly connected to one side of the first power frame, and the end of the spring away from the first power frame is fixedly connected to the inner wall of the power groove.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This PETG pilot polymerization device with cleaning function uses a moving rod to scrape and clean the material adhering to the casting head body through a scraper, keeping the casting head body clean and reducing the amount of material adhering to the casting head body to a certain extent, thus avoiding affecting the operation of the device. The cleaning of the casting head body is more convenient, reducing the need for manual cleaning by staff. The material scraped by the scraper can be collected through a collection box.

[0014] 2. This PETG pilot polymerization device with cleaning function allows the mounting frame to slide in and out of the mounting groove, enabling the installation and disassembly of the mounting frame. This makes it easier for workers to install and disassemble the scraper, facilitates subsequent maintenance of the scraper, and makes it more convenient for workers to use the device. Attached Figure Description

[0015] Figure 1 This utility model has a three-dimensional structure. Figure 1 A schematic diagram;

[0016] Figure 2 This utility model has a three-dimensional structure. Figure 2 A schematic diagram;

[0017] Figure 3 This is a schematic diagram of the three-dimensional structure of the movable rod in this utility model;

[0018] Figure 4 This is a schematic diagram of the three-dimensional structure of the power groove in this utility model.

[0019] In the diagram: 1. Bracket; 2. Polymer body; 3. Cast strip head body; 4. Support plate; 5. Moving groove; 6. Moving rod; 7. Collection box; 8. Threaded rod; 9. Mounting groove; 10. Mounting frame; 11. Scraper; 12. Guide groove; 13. Positioning groove; 14. Positioning rod; 15. Connecting rod; 16. Blocking rod; 17. Power groove; 18. First power frame; 19. Second power frame; 20. Gear; 21. Handle; 22. Spring; 23. Fixing frame; 24. Fixing groove; 25. Motor. Detailed Implementation

[0020] Please see Figure 1-4 This utility model provides a technical solution: a PETG pilot polymerization device with cleaning function, including a support 1, on which a polymerization body 2 is mounted. The polymerization body 2 is an existing structure and will not be described in detail here. The polymerization body 2 can perform pilot polymerization of PETG. A casting head body 3 is mounted on the polymerization body 2, which can extrude the processed PETG material. A support plate 4 is fixedly connected to the support 1. A moving groove 5 is opened on one side of the support plate 4. A moving rod 6 extending to the outside of the moving groove 5 is slidably connected inside the moving groove 5. Two mounting grooves are opened inside the moving rod 6. 9. An installation frame 10 is slidably connected inside the installation slot 9. A scraper 11 is fixed to the top of the installation frame 10. The installation frame 10 and the scraper 11 can scrape and clean the material attached to the casting head body 3, keeping the casting head body 3 clean and reducing the amount of material attached to the casting head body 3 to a certain extent, thus reducing the need for manual cleaning by workers. A power device is provided inside the moving rod 6. The power device controls the locking or unlocking of the installation frame 10 in the installation slot 9, which facilitates the installation and disassembly of the installation frame 10 and the scraper 11. A collection box 7 is provided at the bottom of the moving rod 6, which can collect the material scraped by the scraper 11.

[0021] The collection box 7 is internally fixedly connected to a connecting rod 15, and a positioning rod 14 is fixedly connected to the top of the connecting rod 15. The bottom of the moving rod 6 is provided with a positioning groove 13. The cross-section of the positioning groove 13 and the positioning rod 14 is trapezoidal. The positioning rod 14 is inserted into the positioning groove 13 and then fixed to the moving rod 6 by bolts. The installation and disassembly of the collection box 7 are made smoother by fixing the positioning rod 14 with bolts.

[0022] The top of the moving rod 6 is provided with a guide groove 12, and the material scraped off by the scraper 11 from the casting head body 3 is discharged into the collection box 7 through the guide groove 12.

[0023] A blocking rod 16 is fixedly connected to the top of the connecting rod 15. The blocking rod 16 is located on one side of the positioning rod 14. The blocking rod 16 can block the moving rod 6 after the positioning rod 14 is installed, making the installation of the positioning rod 14 more convenient. At the same time, the inclined surface of the blocking rod 16 can make the material guided by the guide groove 12 fall more smoothly into the inside of the collection box 7.

[0024] The moving groove 5 is internally fixedly connected to a motor 25. The motor 25 is an existing structure and will not be described in detail here. The output end of the motor 25 is fixedly connected to a threaded rod 8 via a coupling. The end of the threaded rod 8 away from the motor 25 is rotatably connected to the inner wall of the moving groove 5. The surface of the threaded rod 8 is connected to the internal thread of the moving rod 6.

[0025] The power unit includes a power groove 17, which is located inside the moving rod 6. A first power frame 18 and a second power frame 19 are slidably connected inside the power groove 17. The cross-section of the first power frame 18 and the second power frame 19 is U-shaped. A gear 20 is rotatably connected inside the power groove 17. The gear 20 is located between the first power frame 18 and the second power frame 19. The first power frame 18 and the second power frame 19 are both provided with teeth on the side near the gear 20. The first power frame 18 and the second power frame 19 are both meshed with the surface of the gear 20 through the teeth. A handle 21 is fixedly connected to the top of the gear 20. The handle 21 is rotatably connected to the moving rod 6, and the top of the handle 21 is located outside the moving rod 6.

[0026] A fixing frame 23 is fixedly connected to one side of both the first power frame 18 and the second power frame 19. The fixing frame 23 has an L-shaped cross-section. A fixing groove 24 is provided on the side of the mounting frame 10 near the fixing frame 23. The surface of the fixing frame 23 is inserted into the inside of the fixing groove 24. The fixing frame 23 can slide into and out of the inside of the fixing groove 24, thereby realizing the installation and disassembly of the mounting frame 10. A slope is provided on one side of the fixing frame 23. When the mounting frame 10 is installed, the mounting frame 10 slides and presses against the slope on the fixing frame 23, thereby pushing the fixing frame 23 to move. This is beneficial for the mounting frame 10 and the fixing frame 23 to be staggered, which is beneficial for the subsequent installation of the mounting frame 10.

[0027] A spring 22 is fixedly connected to one side of the first power frame 18. The end of the spring 22 away from the first power frame 18 is fixedly connected to the inner wall of the power groove 17. The movement of the first power frame 18 can compress and reset the spring 22, and make the fixing frame 23 slide more smoothly into the interior of the fixing groove 24, thereby fixing the position of the mounting frame 10.

[0028] Working principle: This type of PETG pilot polymerization device with cleaning function firstly uses the polymerization body 2 to perform pilot polymerization of PETG. The polymerization body 2 can extrude the processed PETG material through the casting head body 3. After the PETG material is processed, the material on the casting head body 3 cools and solidifies. The operator starts the motor 25, which drives the threaded rod 8 to rotate forward and backward. Under the restriction of the moving groove 5, the threaded rod 8 drives the moving rod 6 to move back and forth. The moving rod 6 can scrape and clean the material attached to the casting head body 3 through the scraper 11, which can keep the casting head body 3 clean and reduce the material adhering to the casting head body 3 to a certain extent, so as to avoid affecting the operation of the device. The cleaning of the casting head body 3 is more convenient and reduces the need for manual cleaning by the operator. The material scraped by the scraper 11 can be collected through the collection box 7.

[0029] By having the operator rotate the handle 21, the handle 21 drives the first power frame 18 and the second power frame 19 to move through the gear 20, causing the fixing frame 23 to slide into and out of the fixing groove 24, thus realizing the installation and disassembly of the mounting frame 10. This makes it easier for the operator to install and disassemble the scraper 11, and also makes the later maintenance of the scraper 11 smoother, allowing the operator to use the device more conveniently.

[0030] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A PETG pilot-scale polymerization device with cleaning function, comprising a support (1), a polymerization body (2) disposed on the support (1), and a casting head body (3) disposed on the polymerization body (2), characterized in that: A support plate (4) is fixedly connected to the bracket (1). A moving groove (5) is provided on one side of the support plate (4). A moving rod (6) extending to the outside of the moving groove (5) is slidably connected inside the moving groove (5). Two mounting grooves (9) are provided inside the moving rod (6). A mounting bracket (10) is slidably connected inside the mounting groove (9). A scraper (11) is fixedly connected to the top of the mounting bracket (10). A power device is provided inside the moving rod (6). The power device controls the locking or unlocking of the mounting bracket (10) in the mounting groove (9). A collection box (7) is provided at the bottom of the moving rod (6).

2. The PETG pilot-scale polymerization apparatus with cleaning function according to claim 1, characterized in that: The collection box (7) is fixedly connected to a connecting rod (15), and a positioning rod (14) is fixedly connected to the top of the connecting rod (15). The bottom of the moving rod (6) is provided with a positioning groove (13). The cross-sections of the positioning groove (13) and the positioning rod (14) are both trapezoidal. The positioning groove (13) and the positioning rod (14) cooperate with each other. The positioning rod (14) is fixedly installed on the moving rod (6) by bolts.

3. The PETG pilot polymerization apparatus with cleaning function according to claim 1, characterized in that: The top of the moving rod (6) is provided with a guide groove (12), and the top of the connecting rod (15) is fixedly connected with a blocking rod (16) located outside the positioning rod (14). The blocking rod (16) limits the end face of the moving rod (6).

4. The PETG pilot-scale polymerization apparatus with cleaning function according to claim 1, characterized in that: The moving groove (5) is fixedly connected to a motor (25). The output end of the motor (25) is fixedly connected to a threaded rod (8) through a coupling. The end of the threaded rod (8) away from the motor (25) is rotatably connected to the inner wall of the moving groove (5). The surface of the threaded rod (8) is threadedly connected to the inside of the moving rod (6).

5. The PETG pilot-scale polymerization apparatus with cleaning function according to claim 1, characterized in that: The power unit includes a power slot (17), which is located inside the moving rod (6). A first power frame (18) and a second power frame (19) are slidably connected inside the power slot (17). The cross-sections of the first power frame (18) and the second power frame (19) are both U-shaped. A gear (20) is rotatably connected inside the power slot (17). The gear (20) is located between the first power frame (18) and the second power frame (19). The first power frame (18) and the second power frame (19) are both provided with teeth on the side near the gear (20). The first power frame (18) and the second power frame (19) are both meshed with the surface of the gear (20) through the teeth. A handle (21) is fixedly connected to the top of the gear (20). The handle (21) is rotatably connected to the moving rod (6), and the top of the handle (21) is located outside the moving rod (6).

6. A PETG pilot-scale polymerization apparatus with cleaning function according to claim 5, characterized in that: The first power frame (18) and the second power frame (19) are both fixedly connected to a fixed frame (23) on one side. The fixed frame (23) has an L-shaped cross section and an inclined surface on one side. The mounting frame (10) has a fixed groove (24) on the side close to the fixed frame (23). The surface of the fixed frame (23) is inserted into the inside of the fixed groove (24).

7. A PETG pilot-scale polymerization apparatus with cleaning function according to claim 6, characterized in that: A spring (22) is fixedly connected to one side of the first power frame (18), and the end of the spring (22) away from the first power frame (18) is fixedly connected to the inner wall of the power groove (17).