Injection molding machine for producing and processing degradable plastics

Abstract

The invention discloses an injection molding machine for degradable plastic production and processing, and belongs to the technical field of degradable plastic production, the injection molding machine comprises a processing table, the processing table is fixedly connected with a weighing mechanism, and the processing table is fixedly connected with a hot mixing mechanism for mixing materials; the machining table is fixedly connected with a transferring mechanism used for moving materials on the surface of the weighing mechanism to the hot mixing mechanism, the machining table is fixedly connected with an injection molding mechanism communicating with the hot mixing mechanism, and the machining table is fixedly connected with a conveying belt. The machining table is fixedly connected with a discharging mechanism used for moving formed plastic to the conveying belt. On the basis that degradable plastic production is achieved, raw materials can be accurately metered, and the retention time of the materials can be shortened.

Description

Technical Field

[0001] This invention relates to the field of biodegradable plastics production technology, and more specifically, to an injection molding machine for biodegradable plastics production and processing. Background Technology

[0002] Biodegradable plastics, also known as environmentally degradable plastics, refer to a class of plastics whose products meet usage requirements, maintain their properties during their shelf life, and degrade into environmentally harmless substances under natural environmental conditions after use. Biodegradable plastics are mainly classified into photodegradable plastics, biodegradable plastics, photo / oxidation / biodegradable plastics, carbon dioxide-based biodegradable plastics, and thermoplastic starch resin degradable plastics. They are mainly used in packaging, tableware, cosmetic and pharmaceutical bottles, disposable medical supplies, agricultural films, and slow-release materials for pesticides and fertilizers.

[0003] In traditional production processes, raw material weighing, mixing, transfer, and injection molding are mostly done in separate steps, requiring a lot of manual intervention. This not only increases production costs but also introduces human error and pollution risks. In particular, in the weighing process, deviations in trace components can significantly affect the final performance of biodegradable plastics. At the same time, traditional designs require material transfer between equipment, with many intermediate steps and long material exposure times, which is especially unfavorable for biodegradable plastics that are easily hydrolyzed or oxidized. Furthermore, many traditional equipment can only handle specific types of products, and a lot of adjustments and reconfiguration are required when changing products, making it unable to adapt to the production needs of multiple varieties and small batches. Summary of the Invention

[0004] In view of the problems existing in the prior art, the purpose of this invention is to provide an injection molding machine for the production and processing of biodegradable plastics. This invention can not only realize the production of biodegradable plastics, but also accurately measure the raw materials and reduce the material residence time.

[0005] To solve the above problems, the present invention adopts the following technical solution: An injection molding machine for producing and processing biodegradable plastics includes: a processing table, a weighing mechanism fixedly connected to the processing table, a hot mixing mechanism for mixing materials fixedly connected to the processing table, a transfer mechanism for moving the material on the surface of the weighing mechanism to the hot mixing mechanism fixedly connected to the processing table, an injection molding mechanism communicating with the hot mixing mechanism fixedly connected to the processing table, a conveyor belt fixedly connected to the processing table, and a feeding mechanism for moving the molded plastic to the conveyor belt fixedly connected to the processing table.

[0006] In a preferred embodiment of the present invention, the weighing mechanism includes an electric turntable fixedly connected to a processing table, a weighing scale fixedly connected to the rotating disc of the electric turntable, a plurality of placement boxes snapped onto the weighing scale tray, an upper cover plate snapped onto the placement box, and a movable handle fixedly connected to the upper cover plate.

[0007] In a preferred embodiment of the present invention, the transfer mechanism includes a rotating frame fixedly connected to a processing table. Two first electric push rods for horizontal adjustment are fixedly connected to the rotating frame. A rotating plate is fixedly connected to the piston rod of each first electric push rod. A first guide rail extending horizontally is provided on the rotating plate. A first sliding seat is slidably connected to the first guide rail. A second electric push rod for longitudinal adjustment is fixedly connected to the first sliding seat. A flipping gripper is fixedly connected to the piston rod of the second electric push rod. A fifth electric push rod is fixedly connected to the rotating plate, and the piston rod of the fifth electric push rod is fixedly connected to the first sliding seat.

[0008] As a preferred embodiment of the present invention, the hot mixing mechanism includes a hot mixing frame fixedly connected to the processing table, a hot mixing cylinder rotatably connected to the hot mixing frame, two connecting pipes fixedly connected to the hot mixing frame, and the hot mixing cylinder rotatably connected to the connecting pipes. A conveying auger is rotatably connected inside the connecting pipe, and the two conveying augers rotate synchronously through a connecting shaft. A feed hopper is fixedly connected to one of the connecting pipes.

[0009] As a preferred embodiment of the present invention, a first servo motor is fixedly connected to one end of the connecting pipe, and the output shaft of the first servo motor is fixedly connected to the conveying auger. A second servo motor is fixedly connected to the hot mixing frame, a first gear is fixedly connected to the output shaft of the second servo motor, and a transmission gear ring meshing with the first gear is fixedly connected to the hot mixing cylinder.

[0010] In a preferred embodiment of the present invention, the injection molding mechanism includes a support plate fixedly connected to a processing table, an injection frame fixedly connected to the support plate, a first guide rod slidably connected to the injection frame, an upper mold fixedly connected to the bottom of the first guide rod, an electric slide table for horizontal adjustment fixedly connected to the support plate, a lower mold fixedly connected to the moving part of the electric slide table, the lower surface of the upper mold and the upper surface of the support plate being opposite to each other, both being fixedly connected to a spring telescopic rod, and an alignment block fixedly connected to the inner side of the spring telescopic rod.

[0011] As a preferred embodiment of the present invention, a third electric push rod for longitudinal adjustment is fixedly connected to the injection molding frame, and the piston rod of the third electric push rod is fixedly connected to the upper mold. The support plate is provided with second guide rails on both sides of the electric slide table, and the lower mold is slidably connected to the second guide rails. Two folded plates are fixedly connected to the support plate, and a stopper is fixedly connected to the folded plates.

[0012] As a preferred embodiment of the present invention, a feed pipe is fixedly connected to the upper mold, a control valve is fixedly connected inside the feed pipe, a heating pipe is fixedly connected to the feed pipe, and the heating pipe is connected to a connecting pipe.

[0013] In a preferred embodiment of the present invention, the unloading mechanism includes an unloading platform fixedly connected to the processing table. The unloading platform is provided with two horizontally extending third guide rails. A second sliding seat is slidably connected to the third guide rails. An unloading frame is slidably connected to the second sliding seat longitudinally. A horizontally extending fourth guide rail is fixedly connected to the unloading frame. Two third sliding seats are slidably connected to the fourth guide rails. A vacuum suction cup is fixedly connected to the third sliding seat. A double-headed cylinder is fixedly connected to the unloading frame, and the piston rods of the double-headed cylinder are respectively fixedly connected to the two third sliding seats.

[0014] As a preferred embodiment of the present invention, a fourth electric push rod for longitudinal adjustment is fixedly connected to the second sliding seat, and the piston rod of the fourth electric push rod is fixedly connected to the unloading frame. A third servo motor is fixedly connected to the second sliding seat, and a second gear is fixedly connected to the output shaft of the third servo motor. A movable gear plate adapted to the second gear is fixedly connected to one side of the unloading platform.

[0015] Compared with the prior art, the advantages of this invention are: (1) This invention achieves full automation from raw material weighing to finished product output through the coordinated operation of multiple mechanisms. The weighing mechanism is responsible for accurately measuring the raw materials to ensure the accuracy of the formula ratio. The hot mixing mechanism heats and mixes the prepared raw materials to make them melt. The transfer mechanism acts as a connecting link to transfer the weighed raw materials from the weighing mechanism to the hot mixing mechanism. The injection molding mechanism receives the molten material and injects it into the mold to form the product. Finally, the unloading mechanism moves the molded product to the conveyor belt to complete the unloading. This invention greatly reduces manual intervention and material exposure time.

[0016] (2) Through the collaborative operation of various mechanisms, this invention reduces human error and material waste in the production process, improves product consistency and quality stability, and effectively reduces the thermal history and time history of biodegradable plastics. It adopts a rapid transfer and precise temperature control design to reduce the residence time of materials at high temperatures, thereby avoiding the problem of molecular chain degradation and performance decline caused by excessive heat exposure of biodegradable plastics. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of an injection molding machine for the production and processing of biodegradable plastics according to the present invention; Figure 2This is a schematic diagram of the weighing mechanism and the transfer mechanism in an injection molding machine for biodegradable plastic production and processing according to the present invention; Figure 3 This is a cross-sectional view of the hot mixing mechanism in an injection molding machine for the production and processing of biodegradable plastics according to the present invention; Figure 4 This is a schematic diagram of the injection molding mechanism in an injection molding machine for the production and processing of biodegradable plastics according to the present invention; Figure 5 This is a first partial structural cross-sectional view of the injection molding mechanism in an injection molding machine for the production and processing of biodegradable plastics according to the present invention; Figure 6 This is a schematic diagram of a second partial structure of the injection molding mechanism in an injection molding machine for biodegradable plastic production and processing according to the present invention; Figure 7 This is a first-view schematic diagram of the feeding mechanism in an injection molding machine for biodegradable plastic production and processing according to the present invention; Figure 8 This is a second-view schematic diagram of the feeding mechanism in an injection molding machine for the production and processing of biodegradable plastics according to the present invention.

[0018] Explanation of the labels in the diagram: 1. Processing table; 2. Weighing mechanism; 201. Electric turntable; 202. Weighing scale; 203. Placement box; 204. Top cover plate; 205. Moving handle; 3. Transfer mechanism; 301. Rotating frame; 302. First electric push rod; 303. Rotating plate; 304. First guide rail; 305. First sliding seat; 306. Second electric push rod; 307. Tilting gripper; 308. Fifth electric push rod; 4. Hot mixing mechanism; 401. Hot mixing frame; 402. Hot mixing cylinder; 403. Connecting shaft; 404. Connecting pipe; 405. Conveying auger; 406. Feed hopper; 407. First servo motor; 408. Second servo motor; 409. First gear; 410. Transmission gear ring; 5. Injection molding mechanism; 501. Pallet 502. Injection frame; 503. First guide rod; 504. Upper mold; 505. Third electric push rod; 506. Electric slide table; 507. Lower mold; 508. Second guide rail; 509. Folding plate; 510. Stopper; 511. Spring telescopic rod; 512. Alignment block; 513. Heating tube; 514. Feed tube; 515. Control valve; 6. Conveyor belt; 7. Unloading mechanism; 701. Unloading platform; 702. Third guide rail; 703. Second sliding seat; 704. Unloading rack; 705. Fourth guide rail; 706. Third sliding seat; 707. Vacuum suction cup; 708. Double-headed cylinder; 709. Fourth electric push rod; 710. Third servo motor; 711. Second gear; 712. Moving gear plate. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention. Example:

[0020] Please see Figure 1-8 An injection molding machine for biodegradable plastic production and processing includes: a processing table 1, a weighing mechanism 2 fixedly connected to the processing table 1, a hot mixing mechanism 4 fixedly connected to the processing table 1 for mixing materials, a transfer mechanism 3 fixedly connected to the processing table 1 for moving the material on the surface of the weighing mechanism 2 to the hot mixing mechanism 4, an injection molding mechanism 5 fixedly connected to the processing table 1 and communicating with the hot mixing mechanism 4, a conveyor belt 6 fixedly connected to the processing table 1, and a feeding mechanism 7 fixedly connected to the processing table 1 for moving the molded plastic to the conveyor belt 6.

[0021] In a specific embodiment of the present invention, through the coordinated operation of multiple mechanisms, the weighing mechanism 2 is responsible for accurately measuring the raw materials to ensure the accuracy of the formula ratio; the hot mixing mechanism 4 heats and mixes the prepared raw materials to achieve a molten state; the transfer mechanism 3 acts as a connecting link to transfer the weighed raw materials from the weighing mechanism 2 to the hot mixing mechanism 4; the injection molding mechanism 5 receives the molten material and injects it into the mold for molding; and finally, the unloading mechanism 7 moves the molded product to the conveyor belt 6 to complete the unloading. This achieves full automation from raw material weighing to finished product output, greatly reducing manual intervention and material exposure time. Through the coordinated operation of each mechanism, human error and material waste in the production process are reduced, and product consistency and quality stability are improved. Secondly, it effectively reduces the thermal history and time history of biodegradable plastics. The rapid transfer and precise temperature control design reduces the residence time of materials at high temperatures, thereby avoiding the molecular chain degradation and performance decline caused by excessive heat exposure of biodegradable plastics.

[0022] Specifically, the weighing mechanism 2 includes an electric turntable 201 fixedly connected to the processing table 1. A weighing scale 202 is fixedly connected to the rotating disc of the electric turntable 201. Multiple placement boxes 203 are snapped onto the tray of the weighing scale 202. An upper cover plate 204 is snapped onto the placement box 203. A movable handle 205 is fixedly connected to the upper cover plate 204.

[0023] In a specific embodiment of the present invention, the electric turntable 201 drives the weighing scale 202 to rotate to different work positions, the placement box 203 is used to hold different raw materials, and the upper cover plate 204 prevents the raw materials from being contaminated and absorbing moisture, thereby achieving accurate proportioning and moisture protection of multi-component raw materials and improving product quality stability.

[0024] Specifically, the transfer mechanism 3 includes a rotating frame 301 fixedly connected to the processing table 1. Two first electric push rods 302 for horizontal adjustment are fixedly connected to the rotating frame 301. A rotating plate 303 is fixedly connected to the piston rod of the first electric push rod 302. A first guide rail 304 extending horizontally is provided on the rotating plate 303. A first sliding seat 305 is slidably connected to the first guide rail 304. A second electric push rod 306 for longitudinal adjustment is fixedly connected to the first sliding seat 305. A flipping gripper 307 is fixedly connected to the piston rod of the second electric push rod 306. A fifth electric push rod 308 is fixedly connected to the rotating plate 303, and the piston rod of the fifth electric push rod 308 is fixedly connected to the first sliding seat 305.

[0025] In a specific embodiment of the present invention, the first electric push rod 302 and the second electric push rod 306 cooperate to realize the three-dimensional movement of the flipping gripper 307, complete the gripping, transfer and unloading of the placement box 203, realize automated transfer, reduce manual operation, reduce pollution risk and improve production efficiency.

[0026] Specifically, the hot mixing mechanism 4 includes a hot mixing frame 401 fixedly connected to the processing table 1, a hot mixing cylinder 402 rotatably connected to the hot mixing frame 401, two connecting pipes 404 fixedly connected to the hot mixing frame 401, and the hot mixing cylinder 402 rotatably connected to the connecting pipes 404. A conveying auger 405 is rotatably connected inside the connecting pipe 404, and the two conveying augers 405 rotate synchronously through a connecting shaft 403. A feed hopper 406 is fixedly connected to one of the connecting pipes 404.

[0027] In a specific embodiment of the present invention, the hot mixing cylinder 402 rotates to mix the materials evenly, the conveying auger 405 pushes the materials forward and provides shear heat, and the connecting pipe 404 provides a heating function. The combination of mechanical shearing and heat conduction achieves rapid and uniform melting and avoids local overheating.

[0028] Specifically, a first servo motor 407 is fixedly connected to one end of a connecting pipe 404, and the output shaft of the first servo motor 407 is fixedly connected to a conveying auger 405. A second servo motor 408 is fixedly connected to the hot mixing frame 401, a first gear 409 is fixedly connected to the output shaft of the second servo motor 408, and a transmission gear ring 410 that meshes with the first gear 409 is fixedly connected to the hot mixing cylinder 402.

[0029] In a specific embodiment of the present invention, a first servo motor 407 drives a conveying auger 405, and a second servo motor 408 drives a hot mixing cylinder 402 to rotate via a first gear 409 and a transmission gear ring 410. The dual-drive design ensures that the mixing and conveying speeds can be adjusted independently to adapt to different formulation requirements.

[0030] Specifically, the injection molding mechanism 5 includes a support plate 501 fixedly connected to the processing table 1, an injection frame 502 fixedly connected to the support plate 501, a first guide rod 503 slidably connected to the injection frame 502, an upper mold 504 fixedly connected to the bottom of the first guide rod 503, an electric slide table 506 for horizontal adjustment fixedly connected to the support plate 501, a lower mold 507 fixedly connected to the moving part of the electric slide table 506, the lower surface of the upper mold 504 and the upper surface of the support plate 501 being opposite to each other, both being fixedly connected to a spring telescopic rod 511, and an alignment block 512 fixedly connected to the inner side of the spring telescopic rod 511.

[0031] In a specific embodiment of the present invention, the electric slide table 506 drives the lower mold 507 to move horizontally, the third electric push rod 505 controls the opening and closing of the upper mold 504, and the spring telescopic rod 511 and the alignment block 512 ensure the mold closing accuracy.

[0032] Specifically, a third electric push rod 505 for longitudinal adjustment is fixedly connected to the injection molding frame 502, and the piston rod of the third electric push rod 505 is fixedly connected to the upper mold 504. A second guide rail 508 is provided on both sides of the support plate 501 and the electric slide table 506, and the lower mold 507 is slidably connected to the second guide rail 508. Two folding plates 509 are fixedly connected to the support plate 501, and a stopper 510 is fixedly connected to the folding plate 509.

[0033] In a specific embodiment of the present invention, the second guide rail 508 ensures that the lower mold 507 moves smoothly, and the folding plate 509 and the stopper 510 provide precise positioning.

[0034] Specifically, a feed pipe 514 is fixedly connected to the upper mold 504, a control valve 515 is fixedly connected inside the feed pipe 514, a heating pipe 513 is fixedly connected to the feed pipe 514, and the heating pipe 513 is connected to a connecting pipe 404.

[0035] In a specific embodiment of the present invention, the heating tube 513 provides a heat preservation function to prevent the material from solidifying during the conveying process, and the control valve 515 precisely controls the feed rate.

[0036] Specifically, the unloading mechanism 7 includes an unloading platform 701 fixedly connected to the processing table 1. The unloading platform 701 is provided with two horizontally extending third guide rails 702. A second sliding seat 703 is slidably connected to the third guide rails 702. An unloading frame 704 is slidably connected to the second sliding seat 703. A horizontally extending fourth guide rail 705 is fixedly connected to the unloading frame 704. Two third sliding seats 706 are slidably connected to the fourth guide rail 705. A vacuum suction cup 707 is fixedly connected to the third sliding seat 706. A double-headed cylinder 708 is fixedly connected to the unloading frame 704, and the piston rods of the double-headed cylinder 708 are respectively fixedly connected to the two third sliding seats 706.

[0037] In a specific embodiment of the present invention, the vacuum suction cup 707 picks up the product, and the double-headed cylinder 708 adjusts the distance between the two suction cups to adapt to products of different sizes. The flexible feeding design can handle products of different specifications and improve the versatility of the equipment.

[0038] Specifically, a fourth electric push rod 709 for longitudinal adjustment is fixedly connected to the second sliding seat 703, and the piston rod of the fourth electric push rod 709 is fixedly connected to the unloading frame 704. A third servo motor 710 is fixedly connected to the second sliding seat 703, and a second gear 711 is fixedly connected to the output shaft of the third servo motor 710. A movable gear plate 712 adapted to the second gear 711 is fixedly connected to one side of the unloading table 701.

[0039] In a specific embodiment of the present invention, the fourth electric push rod 709 controls the unloading height, and the third servo motor 710 and the moving toothed plate 712 drive the entire mechanism to move horizontally, so as to achieve precise unloading, avoid product falling or damage, and ensure the integrity of the finished product.

[0040] A method for using an injection molding machine for the production and processing of biodegradable plastics includes the following steps: The operator first places different types of raw materials into the respective placement boxes 203 of the weighing mechanism 2. The electric turntable 201 rotates according to the program and weighs each placement box 203. After the weighing is completed, the transfer mechanism 3 starts to work. The first electric push rod 302 and the second electric push rod 306 work together to make the flipping gripper 307 accurately grab the placement box 203. Through horizontal movement and precise positioning, the raw materials are transferred to the feed hopper 406 of the hot mixing mechanism 4. Then the flipping gripper 307 performs a flipping action to pour the raw materials into the feed hopper 406. After the raw material enters the hot mixing mechanism 4, it first falls into the connecting pipe 404. The conveying auger 405 rotates under the drive of the first servo motor 407, conveying the raw material forward and preheating it. At the same time, the hot mixing cylinder 402 rotates under the drive of the second servo motor 408, causing the raw material in the hot mixing cylinder 402 to continuously tumble and mix. The fully melted and mixed material continues to be conveyed forward through the connecting pipe 404, and finally enters the feed pipe 514 of the injection molding mechanism 5 through the heating pipe 513. The injection mechanism 5 is the core of the entire system. When the control valve 515 is opened, the material is injected into the cavity formed by the upper mold 504 and the lower mold 507 under pressure. During the injection process, the third electric push rod 505 applies sufficient pressure to ensure that the mold is tightly closed and to prevent material from overflowing. The electric slide table 506 can drive the lower mold 507 to move horizontally, which facilitates mold cleaning and product removal. The spring telescopic rod 511 and the alignment block 512 ensure the mold closing accuracy and reduce flash. After the injection is completed, the mold is kept closed for a period of time to allow the product to cool and solidify fully. After the product is shaped, the unloading mechanism 7 starts working. The fourth electric push rod 709 adjusts the height of the unloading frame 704 so that the vacuum suction cup 707 contacts the product surface and picks up the product. The double-headed cylinder 708 adjusts the distance between the two vacuum suction cups 707 according to the product size to ensure stable suction. Then, the third servo motor 710 drives the second gear 711 to mesh with the moving toothed plate 712, which drives the unloading mechanism 7 to move horizontally above the conveyor belt 6. The vacuum is released, and the product falls onto the conveyor belt 6 and is sent out.

[0041] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and its improved concept, should be covered within the scope of protection of the present invention.

Claims

1. An injection molding machine for the production and processing of biodegradable plastics, characterized in that, include: A processing table (1) is fixedly connected to a weighing mechanism (2), a hot mixing mechanism (4) for mixing materials is fixedly connected to the processing table (1), a transfer mechanism (3) for moving the material on the surface of the weighing mechanism (2) to the hot mixing mechanism (4) is fixedly connected to the processing table (1), an injection molding mechanism (5) connected to the hot mixing mechanism (4) is fixedly connected to the processing table (1), a conveyor belt (6) is fixedly connected to the processing table (1), and a feeding mechanism (7) for moving the molded plastic to the conveyor belt (6) is fixedly connected to the processing table (1).

2. The injection molding machine for biodegradable plastic production and processing according to claim 1, characterized in that, The weighing mechanism (2) includes an electric turntable (201) fixedly connected to the processing table (1). A weighing scale (202) is fixedly connected to the rotating disk of the electric turntable (201). Multiple placement boxes (203) are snapped onto the tray of the weighing scale (202). A top cover plate (204) is snapped onto the placement box (203). A movable handle (205) is fixedly connected to the top cover plate (204).

3. The injection molding machine for biodegradable plastic production and processing according to claim 2, characterized in that, The transfer mechanism (3) includes a rotating frame (301) fixedly connected to the processing table (1). Two first electric push rods (302) for horizontal adjustment are fixedly connected to the rotating frame (301). A rotating plate (303) is fixedly connected to the piston rod of the first electric push rod (302). A first guide rail (304) extending horizontally is provided on the rotating plate (303). A first sliding seat (305) is slidably connected to the first guide rail (304). A second electric push rod (306) for longitudinal adjustment is fixedly connected to the first sliding seat (305). A flipping gripper (307) is fixedly connected to the piston rod of the second electric push rod (306). A fifth electric push rod (308) is fixedly connected to the rotating plate (303), and the piston rod of the fifth electric push rod (308) is fixedly connected to the first sliding seat (305).

4. The injection molding machine for biodegradable plastic production and processing according to claim 3, characterized in that, The hot mixing mechanism (4) includes a hot mixing frame (401) fixedly connected to the processing table (1), a hot mixing cylinder (402) rotatably connected to the hot mixing frame (401), two connecting pipes (404) fixedly connected to the hot mixing frame (401), and the hot mixing cylinder (402) rotatably connected to the connecting pipes (404). A conveying auger (405) is rotatably connected inside the connecting pipe (404), and the two conveying augers (405) rotate synchronously through a connecting shaft (403). A feed hopper (406) is fixedly connected to one of the connecting pipes (404).

5. The injection molding machine for biodegradable plastic production and processing according to claim 4, characterized in that, One end of the connecting pipe (404) is fixedly connected to a first servo motor (407), and the output shaft of the first servo motor (407) is fixedly connected to a conveying auger (405). A second servo motor (408) is fixedly connected to the hot mixing frame (401), and a first gear (409) is fixedly connected to the output shaft of the second servo motor (408). A transmission gear ring (410) that meshes with the first gear (409) is fixedly connected to the hot mixing cylinder (402).

6. The injection molding machine for biodegradable plastic production and processing according to claim 5, characterized in that, The injection molding mechanism (5) includes a tray (501) fixedly connected to the processing table (1), an injection frame (502) fixedly connected to the tray (501), a first guide rod (503) slidably connected to the injection frame (502), an upper mold (504) fixedly connected to the bottom of the first guide rod (503), an electric slide table (506) for horizontal adjustment fixedly connected to the tray (501), a lower mold (507) fixedly connected to the moving part of the electric slide table (506), the lower surface of the upper mold (504) and the upper surface of the tray (501) are opposite to each other, and both are fixedly connected to a spring telescopic rod (511), and an alignment block (512) is fixedly connected to the inner side of the spring telescopic rod (511).

7. The injection molding machine for biodegradable plastic production and processing according to claim 6, characterized in that, The injection molding frame (502) is fixedly connected to a third electric push rod (505) for longitudinal adjustment, and the piston rod of the third electric push rod (505) is fixedly connected to the upper mold (504). The support plate (501) is provided with second guide rails (508) on both sides of the electric slide table (506), and the lower mold (507) is slidably connected to the second guide rails (508). The support plate (501) is fixedly connected to two folded plates (509), and the folded plates (509) are fixedly connected to a stopper (510).

8. The injection molding machine for biodegradable plastic production and processing according to claim 7, characterized in that, The upper mold (504) is fixedly connected to a feed pipe (514), and a control valve (515) is fixedly connected inside the feed pipe (514). A heating pipe (513) is fixedly connected to the feed pipe (514), and the heating pipe (513) is connected to a connecting pipe (404).

9. The injection molding machine for biodegradable plastic production and processing according to claim 8, characterized in that, The unloading mechanism (7) includes an unloading platform (701) fixedly connected to the processing table (1). The unloading platform (701) is provided with two horizontally extending third guide rails (702). A second sliding seat (703) is slidably connected to the third guide rail (702). An unloading frame (704) is slidably connected to the second sliding seat (703) longitudinally. A horizontally extending fourth guide rail (705) is fixedly connected to the unloading frame (704). Two third sliding seats (706) are slidably connected to the fourth guide rail (705). A vacuum suction cup (707) is fixedly connected to the third sliding seat (706). A double-headed cylinder (708) is fixedly connected to the unloading frame (704), and the piston rod of the double-headed cylinder (708) is fixedly connected to the two third sliding seats (706) respectively.

10. The injection molding machine for biodegradable plastic production and processing according to claim 9, characterized in that, A fourth electric push rod (709) for longitudinal adjustment is fixedly connected to the second sliding seat (703), and the piston rod of the fourth electric push rod (709) is fixedly connected to the unloading frame (704). A third servo motor (710) is fixedly connected to the second sliding seat (703), and a second gear (711) is fixedly connected to the output shaft of the third servo motor (710). A movable gear plate (712) adapted to the second gear (711) is fixedly connected to one side of the unloading platform (701).

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