PETG extrusion molding cooling and winding device

Abstract

The application discloses a PETG extrusion molding cooling and winding device, which aims to solve the technical problem of simple cooling structure of an existing extruder, which is generally only a single cooling water tank and has poor intelligent cooling effect. The PETG extrusion molding cooling and winding device comprises a cooling water tank and a winding assembly, and the cooling water tank comprises a water tank body, and transition rollers are rotationally connected between the inner walls on the left and right sides of the water tank body. The heat pipe installed on the right side of the water tank body can absorb heat from the water body and transfer the heat to the radiating fins, while the fan flows the external air from the gap of the radiating fins to take away the heat, and the hot air is sent into the upper air drying box and the lower air drying box along the flow divider, and then is blown out from the multiple air nozzles, so that the heat of the water is well recycled, and the recycled heat is used for air drying of the PETG, thereby reducing the power consumption.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of PETG processing, and particularly relates to a PETG extrusion molding cooling and winding device. BACKGROUND

[0002] PETG is a non-crystalline copolyester material, and is full name of polyethylene terephthalate-1,4-cyclohexanedimethyl ester, which is mainly generated by the reaction of terephthalic acid (TPA) and ethylene glycol (EG), wherein a part of the ethylene glycol is replaced by cyclohexanedimethyl alcohol (CHDM). The addition of CHDM can prevent crystallization, improve processing performance, increase toughness, transparency and chemical resistance, so that the PETG material is used by extruding and molding into a coiled material or a sheet material by adding a certain amount of lubricant as an auxiliary material, and is widely used in various industries.

[0003] After PETG is extruded and molded, the PETG needs to be cooled to form quickly, the cooling structure of the existing extruder is relatively simple, and generally only a single cooling tank, the intelligent cooling effect is poor, the water temperature in the cooling tank is increased after absorbing heat for a long time, and the water temperature distribution is uneven, which affects the cooling effect of the PETG and is not convenient for the cooling molding of the PETG. SUMMARY

[0004] (1) Technical problem to be solved

[0005] In view of the defects of the prior art, the purpose of the present application is to provide a PETG extrusion molding cooling and winding device, which aims to solve the technical problem that the cooling structure of the existing extruder is relatively simple, and generally only a single cooling tank, and the intelligent cooling effect is poor.

[0006] (2) Technical scheme

[0007] In order to solve the above technical problems, the present application provides a PETG extrusion molding cooling and winding device, which comprises a cooling tank and a winding assembly, the cooling tank comprises a water tank body, transition rollers are rotatably connected between the inner walls on the left and right sides of the water tank body, a heat dissipation channel is formed between the front and rear sides of the water tank body, and the bottom of the water tank body forms a circulation channel, a circulation assembly is arranged at the bottom of the water tank body, a heat dissipation assembly and a driving assembly are arranged in the heat dissipation channel, the driving assembly is used to drive the rotation of the circulation assembly and the heat dissipation assembly, and the circulation assembly is used to make the water in the water tank body flow in the circulation channel in a circulating manner.

[0008] The winding assembly includes a frame and two fixed plates fixedly connected to the upper surface of the frame. Two pressing rollers are rotatably connected to the inner left side of the two fixed plates, and a winding roller is rotatably connected to the inner right side of the two fixed plates. A drying assembly is provided between the pressing rollers and the winding roller. The drying assembly is used to dry the water-cooled PETG.

[0009] Preferably, the circulation assembly includes a left rotating shaft and a right rotating shaft rotatably connected to the bottom of the water tank body. Two left rollers and two right rollers are fixedly connected to the outer surfaces of the left rotating shaft and the right rotating shaft, respectively. A circulation belt is installed between the left rollers and the right rollers, and multiple teeth are fixedly connected to the outer surface of the circulation belt.

[0010] Furthermore, the heat dissipation assembly includes a mounting bracket fixedly connected inside the heat dissipation channel. Multiple mounting rods are fixedly connected between the upper and lower inner walls of the mounting bracket. A second rotating shaft is rotatably connected to the mounting rod via bearings. Multiple fan blades are fixedly connected to the front of the second rotating shaft. A second pulley is fixedly connected to the rear side of the second rotating shaft. Adjacent second pulleys are connected by a second belt drive.

[0011] Furthermore, the drive assembly includes a first motor fixedly connected to the left side of the back of the mounting bracket. The output end of the first motor is fixedly connected to a first rotating shaft. A first bevel gear and a first pulley are fixedly connected to the front of the first rotating shaft. A second pulley on the left side is connected to the first pulley via a first belt. A second bevel gear is meshed with the first bevel gear. A third rotating shaft is fixedly connected to the left side of the second bevel gear. The left side of the third rotating shaft is located inside the water tank body and is fixedly connected to a third bevel gear. A fourth bevel gear is fixedly connected to the outer surface of the left rotating shaft. The third bevel gear and the fourth bevel gear are meshed with each other. The third rotating shaft is rotatably connected to the water tank body via a sealed bearing.

[0012] Furthermore, heat dissipation base plates are fixedly connected to both the front and rear sides of the heat dissipation channel, and multiple heat dissipation teeth are fixedly connected to the inner side of the heat dissipation base plates.

[0013] Furthermore, the heat dissipation substrate includes two arc-shaped plates, with two flat plates fixedly connected between the two arc-shaped plates.

[0014] Furthermore, a pressing motor is fixedly connected to the left side of the front of the fixed plate, and the output end of the pressing motor is fixedly connected to the lower pressing roller. A winding motor is fixedly connected to the right side of the front of the fixed plate, and the output end of the winding motor is fixedly connected to the winding roller.

[0015] Furthermore, the drying assembly includes a hot air box fixedly connected to the lower surface of the frame, multiple upper drying boxes and multiple lower drying boxes fixedly connected between two fixed plates, the front of the upper drying box and the lower drying box extending to the front of the fixed plate and fixedly connected to a distribution box, a duct fixedly connected between the hot air box and the distribution box, a fan installed on the duct, and multiple air nozzles installed on the adjacent sides of the upper drying box and the lower drying box.

[0016] Furthermore, the hot air box is equipped with multiple heat pipes, and multiple heat sinks are fixedly connected to the outer surface of the heat pipes. The other end of the heat pipes extends to the inside of the right side of the water tank body.

[0017] Furthermore, a guide roller is rotatably connected between the two fixed plates, and the guide roller is located between the upper drying box and the take-up roller.

[0018] (3) Beneficial effects

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] In the above solution, a heat pipe is installed on the right side of the water tank body to absorb heat from the water and transfer it to the heat sink. At the same time, the fan draws outside air through the gaps in the heat sink to carry away the heat. The hot air is then sent along the distribution box into the upper and lower drying boxes and blown out from multiple nozzles. This effectively recovers the heat from the water and reuses it to dry PETG, thereby reducing power consumption.

[0021] In the above scheme, the drive component drives the drive circulation component and the heat dissipation component to rotate. When the heat dissipation component rotates, cold air flows through the heat dissipation teeth in the heat dissipation channel to carry away the heat, thereby rapidly cooling the water in the water tank body. When the circulation component rotates, it can drive the water in the water tank body to flow clockwise along the circulation channel, thereby allowing the cold water at the bottom of the water tank body to flow to the top to better cool down the PETG and facilitate the cooling and molding of the PETG. Attached Figure Description

[0022] Figure 1 A frontal three-dimensional structural diagram of a PETG extrusion molding cooling and winding device;

[0023] Figure 2 A rear-view three-dimensional structural diagram of a PETG extrusion molding cooling and winding device;

[0024] Figure 3 A front view cross-sectional schematic diagram of a PETG extrusion molding cooling and winding device;

[0025] Figure 4 A schematic diagram of the overall structure of a PETG extrusion molding cooling and winding device;

[0026] Figure 5 A top-view cross-sectional schematic diagram of a PETG extrusion molding cooling and winding device;

[0027] Figure 6 For PETG extrusion molding cooling and winding device Figure 5 A magnified schematic diagram of the drive component;

[0028] Figure 7 A three-dimensional structural diagram of the circulation component of a PETG extrusion molding cooling and winding device;

[0029] Figure 8 A schematic diagram of the internal structure of the heat dissipation channel in a PETG extrusion molding cooling and winding device;

[0030] Figure 9 A three-dimensional structural diagram of the drying component of a PETG extrusion molding cooling and winding device.

[0031] The labels in the attached diagram are as follows: 1. Cooling water tank; 2. Rewinding assembly; 3. Tank body; 4. Transition roller; 5. Heat dissipation channel; 6. Circulation channel; 7. Circulation assembly; 8. Heat dissipation assembly; 9. Drive assembly; 10. Frame; 11. Fixing plate; 12. Press roller; 13. Rewinding roller; 14. Air drying assembly; 15. Press motor; 16. Rewinding motor; 701. Left rotating shaft; 702. Right rotating shaft; 703. Left roller shaft; 704. Right roller shaft; 705. Circulation belt; 706. Gear; 501. Heat dissipation base plate; 502. Heat dissipation teeth; 5011. Arc plate; 5012. Flat plate; 801. Mounting bracket; 80 2. Mounting rod; 803. Second rotating shaft; 804. Fan blade; 805. Second pulley; 806. Second belt; 901. First motor; 902. First rotating shaft; 903. First bevel gear; 904. First pulley; 905. First belt; 906. Second bevel gear; 907. Third rotating shaft; 908. Third bevel gear; 909. Fourth bevel gear; 1401. Hot air box; 1402. Upper drying box; 1403. Lower drying box; 1404. Diverter box; 1405. Air duct; 1406. Fan; 1407. Air nozzle; 1408. Heat pipe; 1409. Heat sink; 1410. Guide roller. Detailed Implementation

[0032] This specific embodiment is a PETG extrusion molding cooling and winding device, the structural schematic diagram of which is shown below. Figures 1-9As shown, the PETG extrusion molding cooling and winding device includes a cooling water tank 1 and a winding assembly 2. An extrusion molding machine is arranged on the left side of the cooling water tank 1. The cooling water tank 1 includes a water tank body 3. Transition rollers 4 are rotatably connected between the inner walls of the left and right sides of the water tank body 3. A heat dissipation channel 5 is opened between the front and rear sides of the water tank body 3, and a circulation channel 6 is formed at the bottom of the water tank body 3. A circulation assembly 7 is arranged at the bottom of the water tank body 3. A heat dissipation assembly 8 and a drive assembly 9 are arranged inside the heat dissipation channel 5. The drive assembly 9 is used to drive the circulation assembly 7 and the heat dissipation assembly 8 to rotate. The circulation assembly 7 is used to make the water inside the water tank body 3 circulate along the circulation channel 6.

[0033] The winding assembly 2 includes a frame 10 and two fixed plates 11 fixedly connected to the upper surface of the frame 10. Two pressing rollers 12 are rotatably connected to the inner left side of the two fixed plates 11, and a winding roller 13 is rotatably connected to the inner right side of the two fixed plates 11. A drying assembly 14 is provided between the pressing rollers 12 and the winding roller 13. The drying assembly 14 is used to dry the water-cooled PETG.

[0034] like Figure 1 , Figure 3 and 7 As shown, in this embodiment, the circulation component 7 includes a left rotating shaft 701 and a right rotating shaft 702 rotatably connected to the bottom of the water tank body 3. Two left roller shafts 703 and two right roller shafts 704 are fixedly connected to the outer surfaces of the left rotating shaft 701 and the right rotating shaft 702, respectively. A circulation belt 705 is installed between the left roller shafts 703 and the right roller shafts 704. Multiple teeth 706 are fixedly connected to the outer surface of the circulation belt 705.

[0035] During rotation, the left rotating shaft 701 and the left roller shaft 703 cooperate with the right rotating shaft 702 and the right roller shaft 704 to drive the circulation belt 705 and the toothed gear 706 to rotate. At this time, the toothed gear 706 drives the water in the water tank body 3 to flow clockwise along the circulation channel 6, so that the cold water at the bottom of the water tank body 3 flows to the upper side to better cool the PETG.

[0036] like Figure 2 , Figure 3 and Figure 8 As shown, in this embodiment, the heat dissipation assembly 8 includes a mounting bracket 801 fixedly connected inside the heat dissipation channel 5. Multiple mounting rods 802 are fixedly connected between the upper and lower inner walls of the mounting bracket 801. A second rotating shaft 803 is rotatably connected to the mounting rod 802 via bearings. Multiple fan blades 804 are fixedly connected to the front of the second rotating shaft 803. A second pulley 805 is fixedly connected to the rear side of the second rotating shaft 803. Adjacent second pulleys 805 are connected by a second belt 806.

[0037] When the second pulley 805 rotates, it drives the second shaft 803 and the fan blades 804 to rotate. Since multiple second pulleys 805 are connected by a second belt 806, multiple fan blades 804 rotate at this time, causing cold air to flow through the heat dissipation teeth 502 in the heat dissipation channel 5 and carry away the heat.

[0038] like Figure 5 and Figure 6 As shown, in this embodiment, the drive assembly 9 includes a first motor 901 fixedly connected to the left side of the back of the mounting bracket 801. The output end of the first motor 901 is fixedly connected to a first rotating shaft 902. The front of the first rotating shaft 902 is fixedly connected to a first bevel gear 903 and a first pulley 904. The left second pulley 805 is connected to the first pulley 904 via a first belt 905. The first bevel gear 903 is meshed with a second bevel gear 906. The left side of the second bevel gear 906 is fixedly connected to a third rotating shaft 907. The left side of the third rotating shaft 907 is located inside the water tank body 3 and is fixedly connected to a third bevel gear 908. The outer surface of the left rotating shaft 701 is fixedly connected to a fourth bevel gear 909. The third bevel gear 908 and the fourth bevel gear 909 are meshed. The third rotating shaft 907 is rotatably connected to the water tank body 3 via a sealed bearing.

[0039] The first motor 901 drives the first rotating shaft 902 to rotate. During the rotation of the first rotating shaft 902, the first rotating shaft 902 can drive the first bevel gear 903 and the first pulley 904 to rotate. During the rotation of the first bevel gear 903, it cooperates with the second bevel gear 906 to drive the third rotating shaft 907 and the third bevel gear 908 to rotate. During the rotation of the third bevel gear 908, it cooperates with the fourth bevel gear 909 to drive the left rotating shaft 701 and the left roller shaft 703 to rotate.

[0040] like Figure 2 and Figure 8 As shown, in this embodiment, heat dissipation substrates 501 are fixedly connected to both the front and rear sides inside the heat dissipation channel 5. Multiple heat dissipation teeth 502 are fixedly connected to the inner side of the heat dissipation substrate 501. The heat dissipation substrate 501 includes two arc-shaped plates 5011, and two flat plates 5012 are fixedly connected between the two arc-shaped plates 5011.

[0041] This facilitates the installation of the heat dissipation base plate 501. Through the heat dissipation base plate 501 and the heat dissipation teeth 502, heat can be absorbed, thereby cooling the water in the water tank body 3.

[0042] like Figure 1 and Figure 4As shown, in this embodiment, a pressing motor 15 is fixedly connected to the left side of the front of the fixing plate 11, and the output end of the pressing motor 15 is fixedly connected to the lower pressing roller 12. A winding motor 16 is fixedly connected to the right side of the front of the fixing plate 11, and the output end of the winding motor 16 is fixedly connected to the winding roller 13.

[0043] like Figure 2 and Figure 9 As shown, in this embodiment, the air drying assembly 14 includes a hot air box 1401 fixedly connected to the lower surface of the frame 10. Multiple upper air drying boxes 1402 and multiple lower air drying boxes 1403 are fixedly connected between two fixed plates 11. The front of the upper air drying boxes 1402 and the lower air drying boxes 1403 extends to the front of the fixed plate 11 and is fixedly connected to a distribution box 1404. A duct 1405 is fixedly connected between the hot air box 1401 and the distribution box 1404. A fan 1406 is installed on the duct 1405. Multiple air nozzles 1407 are installed on the side of the upper air drying boxes 1402 and the lower air drying boxes 1403 that are close to each other. Multiple heat pipes 1408 are provided inside the hot air box 1401. Multiple heat sinks 1409 are fixedly connected to the outer surface of the multiple heat pipes 1408. The other end of the multiple heat pipes 1408 extends to the inside of the right side of the water tank body 3.

[0044] Heat pipes 1408 installed on the right side of the water tank body 3 can absorb heat from the water and transfer it to the heat sink 1409. At the same time, the fan 1406 draws outside air through the gaps in the heat sink 1409 to carry away the heat. The hot air is then sent along the distribution box 1404 into the upper drying box 1402 and the lower drying box 1403, and then blown out from multiple air nozzles 1407 to dry the cooled PETG, thereby effectively recovering the heat from the water.

[0045] like Figure 3 and Figure 4 As shown, in this embodiment, a guide roller 1410 is rotatably connected between the two fixed plates 11, and the guide roller 1410 is located between the upper drying box 1402 and the take-up roller 13.

[0046] The technical solution provided by this invention ensures that PETG is always immersed in cooling water and cooled by two transition rollers 4. During operation, the pressing motor 15 drives the two pressing rollers 12 to rotate, flattening the cooled PETG. Meanwhile, the winding motor 16 drives the winding roller 13 to rotate and wind up the PETG. Since the heat dissipation channel 5 is equipped with a heat dissipation substrate 501 and heat dissipation teeth 502, the water in the water tank body 3 can be cooled. Furthermore, a heat pipe 1408 is installed on the right side of the water tank body 3 to absorb heat from the water and transfer it to the heat sink 1409. Simultaneously, the fan 1406 draws external air from the heat sink 1409. The gaps allow heat to escape, while hot air is simultaneously sent along the distribution box 1404 into the upper drying box 1402 and the lower drying box 1403, and then blown out from multiple air nozzles 1407 to dry the cooled PETG. A temperature sensor is installed inside the water tank body 3; when the water temperature rises, the first motor 901 is activated, driving the first rotating shaft 902 to rotate. During rotation, the first rotating shaft 902 drives the first bevel gear 903 and the first pulley 904 to rotate. During rotation, the first pulley 904, through the first belt 905, drives the second pulley 805, the second rotating shaft 803, and the fan blades 804 to rotate. Because multiple second pulleys 805... The second belt 806 drives the multiple fan blades 804 to rotate, drawing cool air through the heat dissipation teeth 502 in the heat dissipation channel 5 to remove heat and rapidly cool the water in the water tank body 3. Simultaneously, the first bevel gear 903, in conjunction with the second bevel gear 906, drives the third shaft 907 and the third bevel gear 908 to rotate. The third bevel gear 908, in conjunction with the fourth bevel gear 909, drives the left shaft 701 and the left roller 703 to rotate. The left shaft 701 and the left roller 703, in conjunction with the right shaft 702 and the right roller 704, drive the circulating belt... When the belt 705 and the prying tooth 706 rotate, the prying tooth 706 drives the water in the water tank body 3 to flow clockwise along the circulation channel 6, so that the cold water at the bottom of the water tank body 3 flows to the top to cool the PETG better, and the water temperature distribution is more uniform, which is conducive to the cooling and molding of PETG. When the water temperature is high, the speed of the fan blade 804 can be increased by simply increasing the speed of the first motor 901, so that more cold air flows through the heat dissipation teeth 502 in the heat dissipation channel 5. At the same time, the water flow speed circulating along the circulation channel 6 is accelerated, and the cold water is delivered to the top of the water tank body 3 more quickly to cool the PETG and ensure the uniformity of cooling.

[0047] All technical features in this embodiment can be freely combined according to actual needs.

[0048] The above embodiments are preferred implementations of the present invention. In addition, the present invention can be implemented in other ways. Any obvious substitutions without departing from the concept of the present technical solution are within the protection scope of the present invention.

Claims

1. A PETG extrusion molding cooling and winding device, characterized in that: The PETG extrusion molding cooling and winding device includes: The cooling water tank (1) includes a cooling water tank (3) and a winding assembly (2). The cooling water tank (1) includes a tank body (3). Transition rollers (4) are rotatably connected between the inner walls of the left and right sides of the tank body (3). A heat dissipation channel (5) is opened between the front and rear sides of the tank body (3) and a circulation channel (6) is formed at the bottom of the tank body (3). A circulation assembly (7) is provided at the bottom of the tank body (3). A heat dissipation assembly (8) and a drive assembly (9) are provided inside the heat dissipation channel (5). The drive assembly (9) is used to drive the circulation assembly (7) and the heat dissipation assembly (8) to rotate. The circulation assembly (7) is used to make the water inside the tank body (3) circulate along the circulation channel (6). The winding assembly (2) includes a frame (10) and two fixed plates (11) fixedly connected to the upper surface of the frame (10). Two pressing rollers (12) are rotatably connected to the left inner wall of the two fixed plates (11), and a winding roller (13) is rotatably connected to the right inner wall of the two fixed plates (11). A drying assembly (14) is provided between the pressing rollers (12) and the winding rollers (13). The drying assembly (14) is used to dry the water-cooled PETG. The circulation assembly (7) includes a left rotating shaft (701) and a right rotating shaft (702) rotatably connected to the bottom of the water tank body (3). The outer surfaces of the left rotating shaft (701) and the right rotating shaft (702) are respectively fixedly connected to two left roller shafts (703) and two right roller shafts (704). A circulation belt (705) is installed between the left roller shafts (703) and the right roller shafts (704). The outer surface of the circulation belt (705) is fixedly connected to multiple teeth (706). The heat dissipation channel (5) has a heat dissipation substrate (501) fixedly connected to both the front and rear sides, and a plurality of heat dissipation teeth (502) are fixedly connected to the inner side of the heat dissipation substrate (501). Two transition rollers (4) are used to cool the PETG press by immersing it in cooling water within the water tank body (3).

2. The PETG extrusion molding cooling and winding device according to claim 1, characterized in that, The heat dissipation assembly (8) includes a mounting bracket (801) fixedly connected inside the heat dissipation channel (5). Multiple mounting rods (802) are fixedly connected between the upper and lower inner walls of the mounting bracket (801). A second rotating shaft (803) is rotatably connected to the mounting rod (802) via a bearing. Multiple fan blades (804) are fixedly connected to the front of the second rotating shaft (803). A second pulley (805) is fixedly connected to the rear side of the second rotating shaft (803). Two adjacent second pulleys (805) are connected by a second belt (806).

3. The PETG extrusion molding cooling and winding device according to claim 2, characterized in that, The drive assembly (9) includes a first motor (901) fixedly connected to the left side of the back of the mounting bracket (801). The output end of the first motor (901) is fixedly connected to a first rotating shaft (902). The front of the first rotating shaft (902) is fixedly connected to a first bevel gear (903) and a first pulley (904). The second pulley (805) on the left side is connected to the first pulley (904) via a first belt (905). The first bevel gear (903) is meshed with a second bevel gear (906). The left side of the second bevel gear (906) is fixedly connected to a third rotating shaft (907). The left side of the third rotating shaft (907) is located inside the water tank body (3) and is fixedly connected to a third bevel gear (908). The outer surface of the left rotating shaft (701) is fixedly connected to a fourth bevel gear (909). The third bevel gear (908) and the fourth bevel gear (909) are meshed together. The third rotating shaft (907) is rotatably connected to the water tank body (3) via a sealed bearing.

4. The PETG extrusion molding cooling and winding device according to claim 1, characterized in that, The heat dissipation substrate (501) includes two arc-shaped plates (5011), and two flat plates (5012) are fixedly connected between the two arc-shaped plates (5011).

5. The PETG extrusion molding cooling and winding device according to claim 1, characterized in that, A pressing motor (15) is fixedly connected to the left side of the front of the fixed plate (11). The output end of the pressing motor (15) is fixedly connected to the lower pressing roller (12). A winding motor (16) is fixedly connected to the right side of the front of the fixed plate (11). The output end of the winding motor (16) is fixedly connected to the winding roller (13).

6. The PETG extrusion molding cooling and winding device according to claim 5, characterized in that, The air drying assembly (14) includes a hot air box (1401) fixedly connected to the lower surface of the frame (10). Multiple upper air drying boxes (1402) and multiple lower air drying boxes (1403) are fixedly connected between the two fixed plates (11). The front of the upper air drying box (1402) and the lower air drying box (1403) extends to the front of the fixed plate (11) and is fixedly connected to a distribution box (1404). A duct (1405) is fixedly connected between the hot air box (1401) and the distribution box (1404). A fan (1406) is installed on the duct (1405). Multiple air nozzles (1407) are installed on the side of the upper air drying box (1402) and the lower air drying box (1403) that are close to each other.

7. The PETG extrusion molding cooling and winding device according to claim 6, characterized in that, The hot air box (1401) is provided with multiple heat pipes (1408) inside, and multiple heat sinks (1409) are fixedly connected to the outer surface of the multiple heat pipes (1408). The other end of the multiple heat pipes (1408) extends to the inside of the right side of the water tank body (3).

8. The PETG extrusion molding cooling and winding device according to claim 7, characterized in that, A guide roller (1410) is rotatably connected between the two fixed plates (11), and the guide roller (1410) is located between the upper drying box (1402) and the take-up roller (13).

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