Composite forming device for polymer composite material

Abstract

The invention relates to the field of spiral extrusion devices, and discloses a composite forming device of a polymer composite material, which comprises a base, an extrusion bin and a feed port are arranged on the base, a spiral extrusion rod is arranged in the extrusion bin, a first motor is arranged at the side part of the feed port, a heating block is arranged outside the extrusion bin, and an exhaust port is formed in the heating block. A scraping device is arranged in the exhaust port; a first telescopic part on the scraping device rotates and stretches out and draws back to scrape the interior of an exhaust port, a second rotating part rotates to drive a partition plate to seal the connecting position of an extrusion bin and the exhaust port, and therefore when the first telescopic part scrapes the inner wall of the exhaust port, coke is prevented from falling into the extrusion bin; and the second rotating piece can convey the scraped materials, so that the problem that the scraped materials are gathered in the exhaust port, and the materials in the extrusion bin are polluted when the extrusion bin is started next time is solved, and the composite forming quality is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of screw extrusion devices, and more particularly to a composite molding device for high-molecular composite materials. Background Art

[0002] Polymer composites are multifunctional materials made from a polymer matrix reinforced with fibers, fillers, and other reinforcements. They offer advantages such as lightness, high strength, and corrosion resistance. The molding device is used for mixing, plasticizing, and molding, with the screw extruder being a key piece of equipment. The screw extruder achieves material melting, mixing, and extrusion through the rotation of the screw, making it suitable for the continuous production of various high-performance composite products.

[0003] A patent application with publication number CN111319222A discloses a polymer material extrusion molding device, including a molding device body, openings on the left and right sides of the front of the molding device body, an electric telescopic rod fixedly connected to the left side of the molding device body, the output end of the electric telescopic rod fixedly connected to a tooth plate, the front of the tooth plate is engaged with a gear, the right side of the gear is fixedly connected to a transmission rod, the end of the transmission rod away from the gear passes through the molding device body and extends to the front side of the molding device body, the transmission rod and the molding device body are movably connected by a bearing, and the left and right sides of the transmission rod surface are fixedly connected to a sealing plate located in front of the opening, which solves the problem that most existing extrusion molding devices are completely sealed shells, which are inconvenient for users to clean, and polymer materials are easily stuck to the inside of the extrusion molding device after long-term use, affecting subsequent material production.

[0004] During use, although the above-mentioned device can solve the problem of cleaning the material adhering to the inside of the shell, the exhaust port of the screw extruder will be affected by temperature and pressure, so the exhaust port may have material accumulation problems, and the exhaust port will also heat up, resulting in the problem of charred material. If the charred material is not cleaned in time, the molded material will have color differences and impurity doping problems. Summary of the Invention

[0005] The present invention provides a composite molding device for polymer composite materials, which solves the problem in the related art that the exhaust port of a screw extruder is affected by temperature and pressure, so that material accumulation may occur at the exhaust port, and the exhaust port may also heat up, resulting in the problem of charred material. If the charred material is not cleaned in time, the molded material will have color differences and impurity doping.

[0006] The invention provides a composite molding device for polymer composite materials, comprising a base, wherein an extrusion bin and a feed port are provided on the base, a spiral extrusion rod is provided inside the extrusion bin, a first motor is provided on the side of the feed port, a heating block is provided outside the extrusion bin, an exhaust port is provided on the heating block, a scraping device is provided inside the exhaust port, and the scraping device is used to scrape the inside of the exhaust port; the scraping device comprises a first rotating member, a first telescopic member, an isolation plate, a second rotating member, and a transmission member, the first rotating member is rotatably installed on the upper part of the heating block, the first telescopic member is rotatably installed on the first rotating member, the second rotating member is provided at the lower part of the heating block, an isolation plate is provided outside the second rotating member, a transmission member is provided at the end of the second rotating member, the second rotating member rotates to drive the isolation plate to rotate, isolate the connection position between the exhaust port and the spiral extrusion rod, and the second rotating member drives the first telescopic member to rotate to scrape the inner wall of the exhaust port.

[0007] As a further optimization scheme of the present invention, the first rotating member includes a first fixed block fixedly installed on the side of the heating block, a first fixed column is fixedly installed on the first fixed block, a first tooth is fixedly installed on the end of the first fixed column close to the side of the heating block, a first telescopic member is rotatably installed on the outside of the first fixed column, and the first fixed column is engaged with the first telescopic member.

[0008] As a further optimization scheme of the present invention, the first telescopic member includes a first telescopic block rotatably mounted inside the heating block, a second telescopic block is slidably mounted inside the first telescopic block, a threaded rod is slidably mounted inside the second telescopic block, a threaded block and a second fixed block are fixedly mounted on the side of the second telescopic block, the threaded block is threadedly mounted on the threaded rod, a telescopic rotating ring is fixedly mounted on the end of the threaded rod close to the threaded block, a first gear is rotatably mounted on the second fixed block, the first gear is meshed with the first teeth, a first belt is provided on the outside of the telescopic rotating ring and the outside of the first gear, the rotation of the first gear is used to drive the telescopic rotating ring to rotate, a fixed rotating ring is fixedly mounted on the end of the first telescopic block, and the fixed rotating ring is rotatably mounted on the outside of the first fixed column.

[0009] As a further optimization scheme of the present invention, the second rotating member includes a conveying tube rotatably installed inside the heating block, the conveying tube is rotatably installed with a second rotating plate, the outside of the second rotating plate is rotatably installed with a limiting mounting block, the end of the limiting mounting block is fixedly installed with the inside of the conveying tube, the end of the second rotating plate is fixedly installed with a baffle, the bottom of the conveying tube is provided with a discharge chute, the end of the second rotating plate away from the baffle end is fixedly installed with a reel, the outside of the reel is provided with an isolation plate, the isolation plate is the same size as the inner wall of the exhaust port, the outside of the second rotating plate close to the baffle side is provided with a second belt, and the fixed rotating ring is connected to the outside of the second rotating plate through the second belt.

[0010] As a further optimization scheme of the present invention, the transmission member includes a limiting tube fixedly installed on the side of the isolation plate, a first rotating block fixedly installed on the end of the limiting tube, an adjusting member fixedly installed on the outside of the first rotating block, a second gear fixedly installed on the end of the reel close to the transmission member, the second gear rotatably installed inside the first rotating block, a third fixed block fixedly installed inside the heating block, an adjusting block fixedly installed on the side of the third fixed block, the first rotating block rotates to drive the adjusting member to rotate, and the adjusting member extends and contracts when it rotates so that the limiting tube rotates with the second gear.

[0011] As a further optimization scheme of the present invention, the adjusting member includes a first U-shaped block fixedly installed on the side of the first rotating block, a second sliding rod is slidably installed inside the first U-shaped block, a second spring is fixedly installed on the end of the second sliding rod, a fifth fixed plate is fixedly installed on the end of the second spring, a fourth fixed column is fixedly installed on the side of the fifth fixed plate, and the fourth fixed column is fixedly installed on the first U-shaped block, a limiting plate is fixedly installed on the outside of the second sliding rod, and a limiting head is slidably installed on the end of the second sliding rod close to the second gear side, a mounting plate is fixedly installed on the outside of the limiting head, and a third spring is fixedly installed on the side of the mounting plate.

[0012] As a further optimization solution of the present invention, the threaded rod is a reciprocating screw rod, and a pointed head is provided at the end of the second telescopic block on the side away from the first fixed column.

[0013] As a further optimization solution of the present invention, the maximum length of the second telescopic block and the first telescopic block is greater than the distance between the first fixing column and the isolation plate.

[0014] As a further optimization solution of the present invention, the elasticity of the second spring is greater than the elasticity of the third spring.

[0015] As a further optimization solution of the present invention, the length of the first telescopic block is greater than the length of the exhaust port.

[0016] The beneficial effects of the present invention are: The composite molding device of a polymer composite material described in the present invention scrapes the inside of the exhaust port by rotating and extending the first telescopic part on the scraping device, and drives the isolation plate to seal the connection position between the extrusion bin and the exhaust port by rotating the second rotating part, thereby preventing the coke material from falling into the interior of the extrusion bin when the first telescopic part scrapes the inner wall of the exhaust port, and the second rotating part can transport the scraped material, thereby preventing the scraped material from accumulating inside the exhaust port and causing contamination to the material inside the extrusion bin when the extrusion bin is started next time, thereby improving the quality of composite molding. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall appearance of the device of the present invention; Figure 2 This is a schematic diagram of the installation of the overall device of the present invention; Figure 3 Schematic diagram of the internal structure of the scraping device of the present invention; Figure 4 It is a schematic diagram of the connection structure of the scraping device of the present invention; Figure 5 is a schematic diagram of the internal structure of the first rotating member of the present invention; Figure 6 Schematic diagram of the internal structure of the first telescopic member of the present invention; Figure 7 is a schematic diagram of the internal structure of the second rotating member of the present invention; Figure 8 yes Figure 7 Enlarged view of point A in the middle; Figure 9 This is a schematic diagram of the initial state of the scraping device of the present invention; Figure 10 It is a schematic diagram of the rotating state of the scraping device of the present invention.

[0018] In the picture: 1. Base; 11. Extrusion chamber; 12. Feed port; 121. First motor; 13. Screw extrusion rod; 14. Heating block; 15. Exhaust port; 2. Scraping device; 21. First rotating member; 211. First fixed block; 212. First fixed column; 213. First tooth; 22. First telescopic member; 221. First telescopic block; 222. Second telescopic block; 223. Threaded rod; 224. Threaded block; 225. Telescopic rotating ring; 226. First belt; 227. Second fixed block; 228. First gear; 229. Fixed rotating ring; 23. Isolation plate; 24. Second rotating member; 241. Second belt; 242. Transport tube; 243. Reel; 244 , baffle; 245, second rotating plate; 246, limit mounting block; 247, discharge chute; 25, transmission member; 251, limit tube; 252, first rotating block; 253, third fixed block; 254, adjusting block; 255, second gear; 256, adjusting member; 2561, first U-shaped block; 2562, fourth fixed column; 2563, fifth fixed plate; 2564, second spring; 2565, second slide bar; 2566, limit plate; 2567, third spring; 2568, mounting plate; 2569, limit head. DETAILED DESCRIPTION

[0019] The subject matter described herein will now be discussed with reference to exemplary embodiments. It should be understood that these embodiments are discussed solely to enable those skilled in the art to better understand and implement the subject matter described herein, and that the functions and arrangements of the elements discussed may be varied without departing from the scope of this specification. Various examples may omit, substitute, or add various processes or components as needed. In addition, features described with respect to some examples may also be combined in other examples.

[0020] like Figures 1 to 3 As shown, a composite molding device for a polymer composite material according to an embodiment of the present invention includes a base 1, an extrusion chamber 11 and a feed port 12 are provided on the base 1, a spiral extrusion rod 13 is provided inside the extrusion chamber 11, a first motor 121 is provided on the side of the feed port 12, a heating block 14 is provided outside the extrusion chamber 11, an exhaust port 15 is provided on the heating block 14, a scraping device 2 is provided inside the exhaust port 15, and the scraping device 2 is used to scrape the inside of the exhaust port 15; like Figures 4 and 5 As shown, Figures 9 and 10As shown, the scraping device 2 includes a first rotating member 21, a first telescopic member 22, an isolation plate 23, a second rotating member 24, and a transmission member 25. The first rotating member 21 is rotatably installed on the upper part of the heating block 14, and the first telescopic member 22 is rotatably installed on the first rotating member 21. The lower part of the heating block 14 is provided with a second rotating member 24, and an isolation plate 23 is provided on the outside of the second rotating member 24. A transmission member 25 is provided at the end of the second rotating member 24. The rotation of the second rotating member 24 drives the isolation plate 23 to rotate, thereby isolating the connection position between the exhaust port 15 and the spiral extrusion rod 13. The second rotating member 24 drives the first telescopic member 22 to rotate to scrape the inner wall of the exhaust port 15.

[0021] It should be noted that when the polymer material is compounded, the polymer material can be put into the inside of the feed port 12, and then the first motor 121 is started. The first motor 121 transports the mixed polymer material inside the feed port 12 to the extrusion bin 11, and then the outside of the extrusion bin 11 is heated, and the spiral extrusion rod 13 inside the extrusion bin 11 is started, and the polymer material can be compounded. A heating block 14 is provided on the outside of the extrusion bin 11, and an exhaust port 15 is installed on the heating block 14. A scraping device 2 is provided inside the exhaust port 15. Therefore, when the spiral extrusion rod 13 extrudes the polymer material, the air squeezed inside the extrusion bin 11 is discharged from the exhaust port 15, thereby achieving the exhaust effect. The exhaust port 15 is usually affected by the temperature and the extrusion pressure. Due to the influence of pressure, there may be a situation where material overflow and charred material cannot be cleaned up. Therefore, a scraping device 2 is provided on the exhaust port 15. When the spiral extrusion rod 13 is used to discharge material, the motor can be used to drive the second rotating member 24 to rotate. The second rotating member 24 is connected to the first telescopic member 22 by a belt. Therefore, the rotation of the second rotating member 24 can drive the isolation plate 23 to rotate in the direction close to the heating block 14. The connection position between the isolation plate 23 and the second rotating member 24 is provided with a transmission member 25. The transmission member 25 is used to connect or disconnect with the isolation plate 23 when the second rotating member 24 rotates, playing the role of clutch. When the isolation plate 23 rotates 90°, the transmission member 25 disconnects the connection position between the isolation plate 23 and the second rotating member 24, and the isolation plate 23 stops rotating (such as Figure 10 As shown), the connection position between the inside of the extrusion chamber 11 and the exhaust port 15 is sealed. When the exhaust port 15 is working normally to exhaust, the isolation plate 23 is located on the inner wall of the exhaust port 15 close to the second rotating member 24. When the second rotating member 24 rotates, the isolation plate 23 can be driven to rotate by the transmission member 25 (as shown). Figure 9 As shown), after the isolation plate 23 rotates to the sealing state, the isolation plate 23 is kept as the same when the second rotating member 24 rotates in one direction through the transmission member 25. Figure 4The second rotating member 24 rotates to drive the first telescopic member 22 to rotate, thereby extending the first telescopic member 22 (as shown in FIG. Figure 10 The first telescopic member 22 shown in the figure) can be scraped against the inner wall of the exhaust port 15 until the first telescopic member 22 rotates one circle, and the scraped material will not fall into the interior of the extrusion bin 11, preventing the coke material from causing secondary pollution to the composite material inside the extrusion bin 11, thereby improving the effect of polymer material composite molding, and the scraped material can be transported inside the second rotating member 24, and the telescopic angle of the first telescopic member 22 will extend as the angle changes until the work is completed, and then the second rotating member 24 is rotated in the opposite direction, and the isolation plate 23 on the second rotating member 24 can be driven by the transmission member 25 to rotate in the direction away from the heating block 14 until the first telescopic member 22 is reset to the position shown in the figure. Figure 4 The second rotating member 24 can transport the scraped material, thereby preventing the scraped material from accumulating inside the exhaust port 15 and causing the material inside the extrusion bin 11 to be contaminated when the extrusion bin 11 is started next time.

[0022] like Figures 4 to 6 As shown, the first rotating member 21 includes a first fixed block 211 fixedly mounted on the side of the heating block 14, a first fixed column 212 is fixedly mounted on the first fixed block 211, a first tooth 213 is fixedly mounted on the end of the first fixed column 212 close to the side of the heating block 14, and a first telescopic member 22 is rotatably mounted on the outside of the first fixed column 212, and the first fixed column 212 is engaged with the first telescopic member 22.

[0023] It should be noted that the first fixed block 211 and the first fixed column 212 are fixedly connected, and the first telescopic member 22 and the second rotating member 24 are connected by a belt. Therefore, when the second rotating member 24 rotates, it can drive the first telescopic member 22 to rotate and retract, and the first tooth 213 engages with the first telescopic member 22, thereby adjusting the extension and retraction length during rotation.

[0024] like Figures 4 to 6As shown, the first telescopic member 22 includes a first telescopic block 221 rotatably mounted inside the heating block 14, a second telescopic block 222 is slidably mounted inside the first telescopic block 221, a threaded rod 223 is slidably mounted inside the second telescopic block 222, a side of the second telescopic block 222 is fixedly mounted with a threaded block 224 and a second fixed block 227, the threaded block 224 is threadedly mounted on the threaded rod 223, and a telescopic rotating ring 225 is fixedly mounted on the end of the threaded rod 223 near the threaded block 224, a first gear 228 is rotatably mounted on the second fixed block 227, the first gear 228 is meshed with the first teeth 213, a first belt 226 is provided on the outside of the telescopic rotating ring 225 and the outside of the first gear 228, and the rotation of the first gear 228 is used to drive the telescopic rotating ring 225 to rotate, and a fixed rotating ring 229 is fixedly mounted on the end of the first telescopic block 221, and the fixed rotating ring 229 is rotatably mounted on the outside of the first fixed column 212.

[0025] It should be noted that when the fixed rotating ring 229 rotates, it can drive the second telescopic block 222 and the first telescopic block 221 to rotate, and the first gear 228 is engaged with the first fixed column 212, and the first fixed column 212 does not rotate. Therefore, during the rotation of the first telescopic block 221, the first gear 228 can be driven to rotate. The rotation of the first gear 228 can drive the telescopic rotating ring 225 and the threaded rod 223 to rotate through the first belt 226, so that the second telescopic block 222 can slide inside the first telescopic block 221, achieving the purpose of telescoping the second telescopic block 222, and the inside of the exhaust port 15 can be scraped.

[0026] like Figures 4 to 7 As shown, the second rotating member 24 includes a conveying pipe 242 rotatably mounted inside the heating block 14, and a second rotating plate 245 is rotatably mounted inside the conveying pipe 242, and a limiting mounting block 246 is rotatably mounted on the outside of the second rotating plate 245, and the end of the limiting mounting block 246 is fixedly mounted to the inside of the conveying pipe 242, and a baffle 244 is fixedly mounted on the end of the second rotating plate 245, and a discharge chute 247 is provided at the bottom of the conveying pipe 242, and a reel 243 is fixedly mounted on the end of the second rotating plate 245 away from the baffle 244, and an isolation plate 23 is provided on the outside of the reel 243, and the isolation plate 23 is the same size as the inner wall of the exhaust port 15, and a second belt 241 is provided on the outside of the second rotating plate 245 close to the baffle 244, and the fixed rotating ring 229 is connected to the outside of the second rotating plate 245 through the second belt 241.

[0027] It should be noted that the baffle 244 is driven to rotate by a motor, and the rotation of the baffle 244 drives the second rotating plate 245 to rotate, and a second belt 241 is provided on the outside of the second rotating plate 245 to achieve the purpose of driving the fixed rotating ring 229 to rotate, and the rotation of the second rotating plate 245 can rotate the reel 243, thereby moving the coke material scraped by the first telescopic member 22 to the position of the reel 243, and the coke material can be transported, and the end of the reel 243 is connected to a transmission member 25. When the second rotating plate 245 rotates in one direction, it can drive the isolation plate 23 to move toward the direction close to the heating block 14, and when the second rotating plate 245 rotates in the opposite direction, it can drive the isolation plate 23 to move toward the inner wall close to the exhaust port 15, thereby achieving the purpose of adjusting the isolation plate 23.

[0028] like Figures 7 and 8 As shown, the transmission member 25 includes a limiting tube 251 fixedly installed on the side of the isolation plate 23, and a first rotating block 252 is fixedly installed on the end of the limiting tube 251. An adjusting member 256 is fixedly installed on the outside of the first rotating block 252. A second gear 255 is fixedly installed on the end of the reel 243 close to the side of the transmission member 25, and the second gear 255 is rotatably installed inside the first rotating block 252. A third fixed block 253 is fixedly installed inside the heating block 14, and an adjusting block 254 is fixedly installed on the side of the third fixed block 253. The rotation of the first rotating block 252 is used to drive the adjusting member 256 to rotate. When the adjusting member 256 rotates, it expands and contracts so that the limiting tube 251 rotates following the second gear 255.

[0029] It should be noted that when the adjusting member 256 is engaged with the second gear 255, it can drive the limiting tube 251 to rotate, and the limiting tube 251 is connected to the isolation plate 23, thereby realizing the function of adjusting the isolation plate 23. When the adjusting member 256 slides on the adjusting block 254 on the third fixed block 253, the isolation plate 23 is moved toward the direction close to the extrusion chamber 11, or the isolation plate 23 is moved toward the side of the exhaust port 15, and the sealing effect between the extrusion chamber 11 and the exhaust port 15 can be adjusted.

[0030] like Figures 7 and 8As shown, the adjusting member 256 includes a first U-shaped block 2561 fixedly mounted on the side of the first rotating block 252, a second sliding rod 2565 is slidably mounted inside the first U-shaped block 2561, a second spring 2564 is fixedly mounted on the end of the second sliding rod 2565, a fifth fixing plate 2563 is fixedly mounted on the end of the second spring 2564, a fourth fixing column 2562 is fixedly mounted on the side of the fifth fixing plate 2563, the fourth fixing column 2562 is fixedly mounted on the first U-shaped block 2561, a limiting plate 2566 is fixedly mounted on the outside of the second sliding rod 2565, and a limiting head 2569 is slidably mounted on the end of the second sliding rod 2565 close to the second gear 255, a mounting plate 2568 is fixedly mounted on the outside of the limiting head 2569, and a third spring 2567 is fixedly mounted on the side of the mounting plate 2568.

[0031] It should be noted that when the limiting head 2569 is engaged with the second gear 255, the rotation of the second gear 255 can drive the adjusting member 256 to rotate, and the adjusting member 256 is fixedly mounted on the first rotating block 252, so that the limiting tube 251 and the isolation plate 23 can be driven to rotate by the first rotating block 252, and when the limiting plate 2566 slides on the adjusting block 254, the second sliding rod 2565 can slide inside the first U-shaped block 2561, so that the limiting head 2569 is separated from the second gear 255, and the second The elasticity of spring 2564 is greater than the elasticity of the third spring 2567, so the limit head 2569 can maintain a state of continuous engagement with the second gear 255, but the second gear 255 will cause the limit head 2569 to slide inside the second slide bar 2565. When the second spring 2564 pushes up the second slide bar 2565 to make the limit head 2569 engage with the second gear 255, it will drive the first U-shaped block 2561 and the second gear 255 to rotate synchronously, thereby achieving the purpose of adjusting the isolation plate 23 by rotating the second gear 255.

[0032] like Figure 5 As shown, the threaded rod 223 is a reciprocating screw rod, and a pointed tip is provided at the end of the second telescopic block 222 away from the first fixing column 212 .

[0033] It should be noted that the threaded rod 223 is a reciprocating screw, and a pointed head is provided at the end of the second telescopic block 222 away from the first fixed column 212. Therefore, when the threaded rod 223 rotates unidirectionally, the second telescopic block 222 can achieve the purpose of telescoping, and the pointed head is provided on the second telescopic block 222, which can scrape the inner wall of the exhaust port 15.

[0034] like Figure 5As shown, the maximum length of the second telescopic block 222 and the first telescopic block 221 is greater than the distance between the first fixing column 212 and the isolation plate 23 .

[0035] It should be noted that the maximum length of the second telescopic block 222 and the first telescopic block 221 is greater than the distance between the first fixed column 212 and the isolation plate 23, so that the second telescopic block 222 slides inside the first telescopic block 221, and the second telescopic block 222 can fully contact the inner wall of the exhaust port 15.

[0036] like Figure 8 As shown, the elasticity of the second spring 2564 is greater than the elasticity of the third spring 2567 .

[0037] It should be noted that the elasticity of the second spring 2564 is greater than the elasticity of the third spring 2567. Therefore, when the second spring 2564 squeezes the second slide rod 2565 so that the limit head 2569 contacts the second gear 255, the second gear 255 can drive the first U-shaped block 2561 to rotate.

[0038] like Figures 4 to 6 As shown, the length of the first telescopic block 221 is greater than the length of the exhaust port 15 .

[0039] It should be noted that the length of the first telescopic block 221 is greater than the length of the exhaust port 15 , so the second telescopic block 222 can clean the bottom of the exhaust port 15 and scrape the top of the isolation plate 23 at the same time.

[0040] The above describes the embodiments of the present invention, but the present invention is not limited to the above specific implementation methods. The above specific implementation methods are merely illustrative and not restrictive. Ordinary technicians in this field can also make many forms based on the inspiration of this embodiment, all of which are protected by the present invention.

Claims

1. A composite molding device for polymer composite materials, comprising a base (1), characterized in that: The base (1) is provided with an extrusion bin (11) and a feed port (12), a spiral extrusion rod (13) is provided inside the extrusion bin (11), a first motor (121) is provided on the side of the feed port (12), a heating block (14) is provided outside the extrusion bin (11), an exhaust port (15) is provided on the heating block (14), a scraping device (2) is provided inside the exhaust port (15), and the scraping device (2) is used to scrape the inside of the exhaust port (15); The scraping device (2) comprises a first rotating member (21), a first telescopic member (22), an isolation plate (23), a second rotating member (24), and a transmission member (25). The first rotating member (21) is rotatably mounted on the upper portion of the heating block (14), the first telescopic member (22) is rotatably mounted on the first rotating member (21), the second rotating member (24) is provided at the lower portion of the heating block (14), the isolation plate (23) is provided on the outside of the second rotating member (24), and the transmission member (25) is provided at the end of the second rotating member (24). The second rotating member (24) rotates to drive the isolation plate (23) to rotate, thereby isolating the connection position between the exhaust port (15) and the spiral extrusion rod (13). The second rotating member (24) drives the first telescopic member (22) to rotate to scrape the inner wall of the exhaust port (15).

2. The composite molding device of a polymer composite material according to claim 1, characterized in that: The first rotating member (21) comprises a first fixed block (211) fixedly mounted on a side of the heating block (14); a first fixed column (212) is fixedly mounted on the first fixed block (211); a first tooth (213) is fixedly mounted on an end of the first fixed column (212) close to the side of the heating block (14); a first telescopic member (22) is rotatably mounted on the outside of the first fixed column (212); and the first fixed column (212) is engaged with the first telescopic member (22).

3. The composite molding device of a polymer composite material according to claim 2, characterized in that: The first telescopic member (22) includes a first telescopic block (221) rotatably mounted inside the heating block (14), a second telescopic block (222) is slidably mounted inside the first telescopic block (221), a threaded rod (223) is slidably mounted inside the second telescopic block (222), a threaded block (224) and a second fixed block (227) are fixedly mounted on the side of the second telescopic block (222), the threaded block (224) and the threaded rod (223) are threadedly mounted, and a telescopic block is fixedly mounted on the end of the threaded rod (223) near the threaded block (224). A retractable rotating ring (225) is provided, and a first gear (228) is rotatably mounted on the second fixed block (227), the first gear (228) is engaged with the first tooth (213), a first belt (226) is provided on the outside of the retractable rotating ring (225) and the outside of the first gear (228), the first gear (228) rotates to drive the retractable rotating ring (225) to rotate, and a fixed rotating ring (229) is fixedly mounted on the end of the first retractable block (221), and the fixed rotating ring (229) is rotatably mounted on the outside of the first fixed column (212).

4. The composite molding device of a polymer composite material according to claim 3, characterized in that: The second rotating member (24) includes a conveying tube (242) rotatably mounted inside the heating block (14), a second rotating plate (245) is rotatably mounted inside the conveying tube (242), a limiting mounting block (246) is rotatably mounted outside the second rotating plate (245), an end of the limiting mounting block (246) is fixedly mounted inside the conveying tube (242), a baffle (244) is fixedly mounted on the end of the second rotating plate (245), and a material discharge trough is provided at the bottom of the conveying tube (242). (247), a reel (243) is fixedly mounted on the end of the second rotating plate (245) away from one end of the baffle (244), an isolation plate (23) is provided on the outside of the reel (243), and the isolation plate (23) is the same size as the inner wall of the exhaust port (15), a second belt (241) is provided on the outside of the second rotating plate (245) close to the side of the baffle (244), and the fixed rotating ring (229) is connected to the outside of the second rotating plate (245) through the second belt (241).

5. The composite molding device of a polymer composite material according to claim 4, characterized in that: The transmission member (25) includes a limiting tube (251) fixedly mounted on the side of the isolation plate (23), a first rotating block (252) fixedly mounted on the end of the limiting tube (251), an adjusting member (256) fixedly mounted on the outside of the first rotating block (252), a second gear (255) fixedly mounted on the end of the reel (243) close to the side of the transmission member (25), the second gear (255) rotatably mounted inside the first rotating block (252), a third fixed block (253) fixedly mounted inside the heating block (14), an adjusting block (254) fixedly mounted on the side of the third fixed block (253), the first rotating block (252) rotates to drive the adjusting member (256) to rotate, and the adjusting member (256) extends and retracts when rotating so that the limiting tube (251) rotates following the second gear (255).

6. The composite molding device of a polymer composite material according to claim 5, characterized in that: The adjusting member (256) includes a first U-shaped block (2561) fixedly mounted on the side of the first rotating block (252); a second sliding rod (2565) is slidably mounted inside the first U-shaped block (2561); a second spring (2564) is fixedly mounted on the end of the second sliding rod (2565); a fifth fixing plate (2563) is fixedly mounted on the end of the second spring (2564); and a fourth fixing column (2562) is fixedly mounted on the side of the fifth fixing plate (2563). The fourth fixed column (2562) is fixedly installed on the first U-shaped block (2561), the outer portion of the second slide bar (2565) is fixedly installed with a limit plate (2566), the end portion of the second slide bar (2565) close to the second gear (255) is slidably installed with a limit head (2569), the outer portion of the limit head (2569) is fixedly installed with a mounting plate (2568), and the side portion of the mounting plate (2568) is fixedly installed with a third spring (2567).

7. The composite molding device of a polymer composite material according to claim 6, characterized in that: The threaded rod (223) is a reciprocating screw rod, and a pointed tip is provided at the end of the second telescopic block (222) on the side away from the first fixed column (212).

8. The composite molding device of a polymer composite material according to claim 7, characterized in that: The maximum length of the second telescopic block (222) and the first telescopic block (221) is greater than the distance between the first fixing column (212) and the isolation plate (23).

9. The composite molding device of a polymer composite material according to claim 8, characterized in that: The elasticity of the second spring (2564) is greater than the elasticity of the third spring (2567).

10. The composite molding device of a polymer composite material according to claim 9, characterized in that: The length of the first telescopic block (221) is greater than the length of the exhaust port (15).

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