PETG (polyethylene terephthalate glycol) extrusion molding, cooling and winding device

Abstract

The invention discloses a PETG (Polyethylene Terephthalate Glycol) extrusion molding, cooling and winding device, and aims to solve the technical problems that the cooling structure of an existing extruder is relatively simple, generally, only an independent cooling water tank is arranged, and the intelligent cooling effect is relatively poor. The PETG extrusion molding cooling and winding device comprises a cooling water tank and a winding assembly, the cooling water tank comprises a water tank body, and transition rollers are rotationally connected between the inner walls of the left side and the right side of the water tank body. The heat pipe is installed on the right side of the water tank body and can absorb heat of a water body and transfer the heat to the cooling fins, meanwhile, the draught fan enables external air to flow through gaps of the cooling fins to take away the heat, meanwhile, hot air is fed into the upper air drying box and the lower air drying box along the flow dividing box and then blown out from the multiple air nozzles, and the air drying effect is improved. And therefore, heat of water is well recycled and reused to air-dry PETG, and the effect of reducing power consumption is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of PETG processing, and in particular relates to a PETG extrusion molding cooling and winding device. Background Art

[0002] PETG is a non-crystalline copolyester material, the full name is polyethylene terephthalate-1,4-cyclohexanedimethanol, which is mainly produced by the reaction of terephthalic acid (TPA) and ethylene glycol (EG), in which a part of ethylene glycol is replaced by cyclohexanedimethanol (CHDM). The role of adding CHDM is to prevent crystallization, while improving processing performance, toughness, transparency and chemical resistance. Therefore, PETG material is made of PETG as raw material, adding a certain amount of lubricant as auxiliary material, extruding into coils or sheets for use, and is widely used in various industries.

[0003] After PETG is extruded and molded, it is generally necessary to cool the PETG for rapid molding. The cooling structure of the existing extruder is relatively simple, generally just a separate cooling water tank, and the intelligent cooling effect is poor. After absorbing heat for a long time, the water temperature inside the cooling water tank rises, and the water temperature distribution is uneven, which affects the cooling effect of PETG and is not convenient for cooling and molding of PETG. Summary of the invention

[0004] (1) Technical issues to be resolved In view of the shortcomings of the prior art, the purpose of the present invention is to provide a PETG extrusion molding cooling and winding device, which is intended to solve the technical problems that the cooling structure of the existing extruder is relatively simple, generally only a separate cooling water tank, and the intelligent cooling effect is poor.

[0005] (2) Technical solution In order to solve the above technical problems, the present invention provides a PETG extrusion molding cooling and winding device, which comprises a cooling water tank and a winding assembly, wherein the cooling water tank comprises a water tank body, and 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 opened between the front and rear sides of the water tank body, and a circulation channel is formed at the bottom of the water tank body, a circulation assembly is arranged at the bottom of the water tank body, and a heat dissipation assembly and a driving assembly are arranged inside the heat dissipation channel, the driving assembly is used to drive the circulation assembly and the heat dissipation assembly to rotate, and the circulation assembly is used to make the water inside the water tank body circulate along the circulation channel; The winding assembly includes a frame and two fixed plates fixedly connected to the upper surface of the frame, the left inner walls of the two fixed plates are rotatably connected to two pressing rollers, the right inner walls of the two fixed plates are rotatably connected to a winding roller, and an air-drying assembly is arranged between the pressing roller and the winding roller, and the air-drying assembly is used to dry the water-cooled PETG.

[0006] Preferably, the circulation component includes a left rotating shaft and a right rotating shaft rotatably connected to the bottom of the water tank body, the outer surfaces of the left rotating shaft and the right rotating shaft are respectively fixedly connected to two left rollers and two right rollers, a circulating belt is installed between the left roller and the right roller, and the outer surface of the circulating belt is fixedly connected to a plurality of shifting teeth.

[0007] Furthermore, the heat dissipation assembly includes a mounting frame fixedly connected to the inside of the heat dissipation channel, a plurality of mounting rods are fixedly connected between the upper and lower inner walls of the mounting frame, a second rotating shaft is rotatably connected to the mounting rod via a bearing, a plurality of 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, and two adjacent second pulleys are connected via a second belt drive.

[0008] Furthermore, the driving assembly includes a first motor fixedly connected to the left side of the back side of the mounting frame, the output end of the first motor is fixedly connected to the first rotating shaft, the front side of the first rotating shaft is fixedly connected to the first bevel gear and the first pulley, the second pulley on the left side is transmission connected to the first pulley through a first belt, the first bevel gear is meshingly connected to the second bevel gear, the left side of the second bevel gear is fixedly connected to the third rotating shaft, the left side of the third rotating shaft is located inside the water tank body and fixedly connected to the third bevel gear, the outer surface of the left rotating shaft is fixedly connected to the fourth bevel gear, the third bevel gear is meshingly connected to the fourth bevel gear, and the third rotating shaft is rotatably connected to the water tank body through a sealed bearing.

[0009] Furthermore, both the front and rear sides of the heat dissipation channel are fixedly connected with a heat dissipation substrate, and the inner side of the heat dissipation substrate is fixedly connected with a plurality of heat dissipation teeth.

[0010] Furthermore, the heat dissipation substrate includes two arc-shaped plates, and two flat plates are fixedly connected between the two arc-shaped plates.

[0011] Furthermore, a pressing motor is fixedly connected to the left side of the front side 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 side of the fixed plate, and the output end of the winding motor is fixedly connected to the winding roller.

[0012] Furthermore, the air-drying component includes a hot air box fixedly connected to the lower surface of the frame, a plurality of upper air-drying boxes and a plurality of lower air-drying boxes are fixedly connected between two fixed plates, the front sides of the upper air-drying boxes and the lower air-drying boxes extend to the front sides of the fixed plates and are fixedly connected to diversion boxes, an air duct is fixedly connected between the hot air box and the diversion box, a fan is installed on the air duct, and a plurality of air nozzles are installed on the side close to the upper air-drying box and the lower air-drying box.

[0013] Furthermore, a plurality of heat pipes are arranged inside the hot air box, a plurality of heat pipes are fixedly connected to the outer surfaces of the plurality of heat pipes, and the other ends of the plurality of heat pipes extend to the right interior of the water tank body.

[0014] Furthermore, a guide roller is rotatably connected between the two fixed plates, and the guide roller is located between the upper air drying box and the winding roller.

[0015] (3) Beneficial effects Compared with the prior art, the present invention has the following beneficial effects: In the above scheme, a heat pipe is installed on the right side of the water tank body to absorb heat from the water body and transfer it to the heat sink. At the same time, the fan passes the external air through the gaps of the heat sink to take away the heat. At the same time, the hot air is sent into the upper air drying box and the lower air drying box along the diversion box, and then blown out from multiple air nozzles, so that the heat of the water is well recovered and reused to air-dry the PETG, thereby reducing power consumption. In the above scheme, the driving component drives the 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 take away the heat, thereby quickly 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 along the circulation channel in a clockwise direction, so that the cold water at the bottom of the water tank body flows to the upper side to better cool the PETG, which is convenient for the cooling and molding of the PETG. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the front view of the three-dimensional structure of the PETG extrusion molding cooling and winding device; Figure 2 It is a rear view stereoscopic structural diagram of the PETG extrusion molding cooling and winding device; Figure 3 It is a schematic diagram of the front cross-sectional structure of a PETG extrusion molding cooling and winding device; Figure 4 It is a schematic diagram of the overall structure of the PETG extrusion molding cooling and winding device; Figure 5 It is a top view cross-sectional structural schematic diagram of a PETG extrusion molding cooling and winding device; Figure 6 For PETG extrusion molding cooling and winding device Figure 5 A schematic diagram of the enlarged structure of the middle drive assembly; Figure 7 It is a three-dimensional structural schematic diagram of the circulation component of the PETG extrusion molding cooling and winding device; Figure 8 It is a schematic diagram of the internal structure of the heat dissipation channel of the PETG extrusion molding cooling and winding device; Fig. 9 This is a schematic diagram of the three-dimensional structure of the air-drying component of the PETG extrusion molding cooling and winding device.

[0017] The marks in the attached drawings are: 1, cooling water tank; 2, winding assembly; 3, water tank body; 4, transition roller; 5, heat dissipation channel; 6, circulation channel; 7, circulation assembly; 8, heat dissipation assembly; 9, driving assembly; 10, frame; 11, fixed plate; 12, pressing roller; 13, winding roller; 14, air drying assembly; 15, pressing motor; 16, winding motor; 701, left rotating shaft; 702, right rotating shaft; 703, left roller shaft; 704, right roller shaft; 705, circulating belt; 706, shifting gear; 501, heat dissipation substrate; 502, heat dissipation gear; 5011, arc plate; 5012, flat plate; 801, mounting frame; 80 2. Mounting rod; 803. Second rotating shaft; 804. Fan blades; 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 air drying box; 1403. Lower air drying box; 1404. Diverter box; 1405. Air duct; 1406. Fan; 1407. Air nozzle; 1408. Heat pipe; 1409. Heat sink; 1410. Guide roller. DETAILED DESCRIPTION

[0018] This specific embodiment is a PETG extrusion molding cooling and winding device, and its structural schematic diagram is as follows Figure 1-Figure 9 As shown, the PETG extrusion molding cooling and winding device comprises 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 comprises a water tank body 3, transition rollers 4 are rotatably connected between the inner walls on 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 driving assembly 9 are arranged inside the heat dissipation channel 5, the driving assembly 9 is used to drive the circulation assembly 7 and the heat dissipation assembly 8 to rotate, and the circulation assembly 7 is used to make the water inside the water 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, the left inner walls of the two fixed plates 11 are rotatably connected to two pressing rollers 12, the right inner walls of the two fixed plates 11 are rotatably connected to a winding roller 13, and an air-drying assembly 14 is arranged between the pressing roller 12 and the winding roller 13, and the air-drying assembly 14 is used to dry the PETG after water cooling.

[0019] 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, and 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, and a circulating belt 705 is installed between the left roller shaft 703 and the right roller shaft 704, and the outer surface of the circulating belt 705 is fixedly connected to a plurality of shifting teeth 706.

[0020] The left rotating shaft 701 and the left roller shaft 703 cooperate with the right rotating shaft 702 and the right roller shaft 704 during the rotation process to drive the circulating belt 705 and the shifting tooth 706 to rotate. At this time, the shifting tooth 706 drives the water tank body 3 to flow in a clockwise direction 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.

[0021] like Figure 2 , Figure 3 and Figure 8 As shown, in this embodiment, the heat dissipation assembly 8 includes a mounting frame 801 fixedly connected to the inside of the heat dissipation channel 5, a plurality of mounting rods 802 are fixedly connected between the upper and lower inner walls of the mounting frame 801, a second rotating shaft 803 is rotatably connected to the mounting rod 802 through a bearing, a plurality of 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, and two adjacent second pulleys 805 are connected through a second belt 806 for transmission.

[0022] In this way, when the second pulley 805 rotates, it drives the second rotating shaft 803 and the fan blades 804 to rotate. Since the multiple second pulleys 805 are connected through the second belt 806, the multiple fan blades 804 rotate at this time, and the cold air flows through the heat dissipation teeth 502 in the heat dissipation channel 5 to take away the heat.

[0023] like Figure 5 and Figure 6As shown, in this embodiment, the driving assembly 9 includes a first motor 901 fixedly connected to the left side of the back side of the mounting frame 801, the output end of the first motor 901 is fixedly connected to the first rotating shaft 902, the front side of the first rotating shaft 902 is fixedly connected to the first bevel gear 903 and the first pulley 904, the left side second pulley 805 is transmission connected to the first pulley 904 through the first belt 905, the first bevel gear 903 is meshingly connected to the second bevel gear 906, the left side of the second bevel gear 906 is fixedly connected to the 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 the third bevel gear 908, the outer surface of the left rotating shaft 701 is fixedly connected to the fourth bevel gear 909, the third bevel gear 908 is meshingly connected to the fourth bevel gear 909, and the third rotating shaft 907 is rotatably connected to the water tank body 3 through a sealed bearing.

[0024] The first motor 901 drives the first rotating shaft 902 to rotate, and the first rotating shaft 902 can drive the first bevel gear 903 and the first pulley 904 to rotate during the rotation. The first bevel gear 903 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. The third bevel gear 908 cooperates with the fourth bevel gear 909 to drive the left rotating shaft 701 and the left roller shaft 703 to rotate during the rotation.

[0025] like Figure 2 and Figure 8 As shown, in this embodiment, a heat dissipation substrate 501 is fixedly connected to the front and rear sides of the heat dissipation channel 5, a plurality of heat dissipation teeth 502 are fixedly connected to the inner side of the heat dissipation substrate 501, and 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.

[0026] In this way, the heat dissipation substrate 501 can be easily installed, and the water in the water tank body 3 can be cooled down by absorbing heat through the heat dissipation substrate 501 and the heat dissipation teeth 502 .

[0027] like Figure 1 and Figure 4 As shown, in this embodiment, a pressing motor 15 is fixedly connected to the left side of the front side of the fixed 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 side of the fixed plate 11, and the output end of the winding motor 16 is fixedly connected to the winding roller 13.

[0028] like Figure 2 and Fig. 9As shown, in this embodiment, the air-drying component 14 includes a hot air box 1401 fixedly connected to the lower surface of the frame 10, a plurality of upper air-drying boxes 1402 and a plurality of lower air-drying boxes 1403 are fixedly connected between the two fixed plates 11, the front sides of the upper air-drying boxes 1402 and the lower air-drying boxes 1403 extend to the front sides of the fixed plates 11 and are fixedly connected to a diversion box 1404, an air duct 1405 is fixedly connected between the hot air box 1401 and the diversion box 1404, a fan 1406 is installed on the air duct 1405, a plurality of air nozzles 1407 are installed on the side close to the upper air-drying box 1402 and the lower air-drying box 1403, a plurality of heat pipes 1408 are arranged inside the hot air box 1401, a plurality of heat sinks 1409 are fixedly connected to the outer surfaces of the plurality of heat pipes 1408, and the other ends of the plurality of heat pipes 1408 extend to the right side of the water tank body 3.

[0029] By installing a heat pipe 1408 on the right side of the water tank body 3, the water body can absorb heat and transfer it to the heat sink 1409. At the same time, the fan 1406 allows external air to flow through the gaps in the heat sink 1409 to take away the heat, and at the same time, the hot air is sent into the upper air drying box 1402 and the lower air drying box 1403 along the diversion box 1404, and then blown out from multiple air nozzles 1407 to air-dry the cooled PETG, thereby recovering the heat of the water well.

[0030] 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 air drying box 1402 and the winding roller 13 .

[0031] The technical solution provided by the present invention ensures that the PETG can always be immersed in the cooling water to be cooled by two transition rollers 4. During operation, the pressing motor 15 drives the two pressing rollers 12 to rotate to flatten the cooled PETG, and the winding motor 16 drives the winding roller 13 to rotate to wind the PETG. Since the heat dissipation substrate 501 and the heat dissipation teeth 502 are installed in the heat dissipation channel 5, the water in the water tank body 3 can be cooled and lowered, and the heat pipe 1408 is installed on the right side of the water tank body 3 to absorb heat from the water body and transfer it to the heat sink 1409. At the same time, the fan 1406 blows the external air from the heat sink 1409 to the heat sink 1409. The heat is taken away by the gap flow, and the hot air is sent into the upper air drying box 1402 and the lower air drying box 1403 along the diverter box 1404, and then blown out from multiple air nozzles 1407 to air-dry the cooled PETG. A temperature sensor is installed in the water tank body 3. When the water temperature rises, the first motor 901 is turned on to drive the first rotating shaft 902 to rotate. The first rotating shaft 902 can drive the first bevel gear 903 and the first pulley 904 to rotate during the rotation. The first pulley 904 drives the second pulley 805, the second rotating shaft 803 and the fan blade 804 to rotate through the first belt 905 during the rotation. The plurality of fan blades 804 rotate to pass the cold air through the heat dissipation teeth 502 in the heat dissipation channel 5 to take away the heat, thereby quickly cooling the water in the water tank body 3. At the same time, the first bevel gear 903 cooperates with the second bevel gear 906 during the rotation to drive the third shaft 907 and the third bevel gear 908 to rotate. The third bevel gear 908 cooperates with the fourth bevel gear 909 during the rotation to drive the left shaft 701 and the left roller shaft 703 to rotate. The left shaft 701 and the left roller shaft 703 cooperate with the right shaft 702 and the right roller shaft 704 during the rotation to drive the circulating belt. The belt 705 and the shifting tooth 706 rotate, and at this time the shifting tooth 706 drives the water tank body 3 to flow in a clockwise direction 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, and the water temperature distribution is more uniform, which is convenient for the cooling and molding of the PETG. When the water temperature is high, the speed of the fan blade 804 can be increased by 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 sent to the top of the water tank body 3 more quickly to cool the PETG, thereby ensuring the uniformity of cooling.

[0032] All technical features in this embodiment can be freely combined according to actual needs.

[0033] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention may also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is 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 invention comprises a cooling water tank (1) and a winding assembly (2), wherein the cooling water tank (1) comprises a water tank body (3), transition rollers (4) are rotatably connected between the inner walls on the left and right sides of the water tank body (3), a heat dissipation channel (5) is provided 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 provided at the bottom of the water tank body (3), a heat dissipation assembly (8) and a driving assembly (9) are provided inside the heat dissipation channel (5), the driving assembly (9) is used to drive the circulation assembly (7) and the heat dissipation assembly (8) to rotate, and the circulation assembly (7) is used to make the water inside the water tank body (3) circulate along the circulation channel (6); The winding assembly (2) comprises a frame (10) and two fixed plates (11) fixedly connected to the upper surface of the frame (10); the left inner walls of the two fixed plates (11) are rotatably connected to two pressing rollers (12); the right inner walls of the two fixed plates (11) are rotatably connected to a winding roller (13); an air-drying assembly (14) is arranged between the pressing rollers (12) and the winding rollers (13); the air-drying assembly (14) is used to dry the PETG after water cooling.

2. The PETG extrusion molding cooling and winding device according to claim 1, characterized in that: The circulation component (7) comprises a left rotating shaft (701) and a right rotating shaft (702) rotatably connected to the bottom of the water tank body (3); two left rollers (703) and two right rollers (704) are fixedly connected to the outer surfaces of the left rotating shaft (701) and the right rotating shaft (702), respectively; a circulating belt (705) is installed between the left roller (703) and the right roller (704); and a plurality of shifting teeth (706) are fixedly connected to the outer surface of the circulating belt (705).

3. The PETG extrusion molding cooling and winding device according to claim 2, characterized in that: The heat dissipation assembly (8) comprises a mounting frame (801) fixedly connected to the inside of the heat dissipation channel (5); a plurality of mounting rods (802) are fixedly connected between the upper and lower inner walls of the mounting frame (801); a second rotating shaft (803) is rotatably connected to the mounting rod (802) via a bearing; a plurality of 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 of the second rotating shaft (803); and two adjacent second pulleys (805) are connected in transmission via a second belt (806).

4. The PETG extrusion molding cooling and winding device according to claim 3, characterized in that: The driving assembly (9) comprises a first motor (901) fixedly connected to the left side of the back side of the mounting frame (801); the output end of the first motor (901) is fixedly connected to a first rotating shaft (902); the front side 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 transmission-connected to the first pulley (904) via a first belt (905); the first bevel gear (903) is meshingly connected to 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) is meshingly connected to the fourth bevel gear (909); and the third rotating shaft (907) is rotationally connected to the water tank body (3) via a sealed bearing.

5. The PETG extrusion molding cooling and winding device according to claim 4, characterized in that: The front and rear sides of the heat dissipation channel (5) are both fixedly connected to a heat dissipation substrate (501), and the inner side of the heat dissipation substrate (501) is fixedly connected to a plurality of heat dissipation teeth (502).

6. The PETG extrusion molding cooling and winding device according to claim 5, characterized in that: The heat dissipation substrate (501) comprises two arc-shaped plates (5011), and two flat plates (5012) are fixedly connected between the two arc-shaped plates (5011).

7. 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 face of the fixed 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 face of the fixed plate (11), and the output end of the winding motor (16) is fixedly connected to the winding roller (13).

8. The PETG extrusion molding cooling and winding device according to claim 7, characterized in that: The air drying component (14) comprises a hot air box (1401) fixedly connected to the lower surface of the frame (10); a plurality of upper air drying boxes (1402) and a plurality of lower air drying boxes (1403) are fixedly connected between the two fixed plates (11); the front faces of the upper air drying boxes (1402) and the lower air drying boxes (1403) extend to the front faces of the fixed plates (11) and are fixedly connected to a diversion box (1404); an air duct (1405) is fixedly connected between the hot air box (1401) and the diversion box (1404); a fan (1406) is installed on the air duct (1405); and a plurality of air nozzles (1407) are installed on the sides of the upper air drying boxes (1402) and the lower air drying boxes (1403) that are close to each other.

9. The PETG extrusion molding cooling and winding device according to claim 8, characterized in that: A plurality of heat pipes (1408) are arranged inside the hot air box (1401), a plurality of heat sinks (1409) are fixedly connected to the outer surfaces of the plurality of heat pipes (1408), and the other ends of the plurality of heat pipes (1408) extend to the inside of the right side of the water tank body (3).

10. The PETG extrusion molding cooling and winding device according to claim 9, 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 air drying box (1402) and the winding roller (13).

Images