A rapid heat dissipation type injection molding machine and an injection molding process

Abstract

This invention discloses a rapid heat dissipation injection molding machine and injection molding process, relating to the field of injection molding machine technology. It includes a mold and a material conveying assembly, with the mold and material conveying assembly connected. The mold includes a fixed mold and a moving mold, with the moving mold equipped with a heat dissipation assembly. The material conveying assembly includes a pipe body and a conveying component, with the pipe body connected to a hopper. The heat dissipation assembly includes a heat dissipation channel and a suction fan; the heat dissipation channel is located inside the moving mold, and the suction fan is located at one end of the heat dissipation channel. The conveying component includes a conveying body and a discharge end; the conveying body consists of a mandrel and several conveying channels, with several heating rods installed inside the mandrel, and the conveying channels arranged around the axis of the mandrel. This invention, through a spiral conveying channel and a gradually varying spacing design, combined with a vortex fluid-induced structure within the heat dissipation channel, achieves efficient heat conduction while simultaneously using airflow-induced vibration to assist in venting and demolding, significantly improving the molding efficiency and quality of recycled plastic injection molding.

Description

Technical Field

[0001] This invention relates to the field of injection molding machine technology, specifically a fast heat dissipation injection molding machine and injection molding process. Background Technology

[0002] Waste plastic pellet injection molding equipment is a key piece of equipment that heats and melts recycled plastic pellets and injects them into a mold to form plastic resources. With the continuous growth of global plastic production, my country's annual plastic waste has exceeded 70 million tons, but the material utilization rate is only about 30%. A large amount of plastic waste can only be incinerated or landfilled, causing serious environmental pollution and waste of resources. Existing waste plastic injection molding equipment still has some prominent technical problems in practical applications: during the melting and conveying process, the plastic melt is prone to laminar flow, that is, the outer layer of melt melts first because it is closer to the heat source and covers the inner layer of material that has not been fully melted, resulting in low heat conduction efficiency and uneven melt temperature, which in turn affects the molding quality. Summary of the Invention

[0003] The purpose of this invention is to provide a fast heat dissipation injection molding machine and injection molding process to solve the problems of low heat conduction efficiency and uneven melt temperature in the prior art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: A fast heat dissipation injection molding machine includes a mold and a material conveying assembly, wherein the mold and the material conveying assembly are connected; the mold includes a fixed mold and a moving mold, wherein the fixed mold and the moving mold are connected, and the moving mold is provided with a heat dissipation assembly; a hopper is provided on one side of the material conveying assembly, and the material conveying assembly includes a pipe body and a conveying assembly, wherein the pipe body is connected to the hopper; The heat dissipation component includes a heat dissipation groove and a suction fan. The heat dissipation groove is disposed inside the moving mold and penetrates the inner wall of the moving mold. The suction fan is disposed at one end of the heat dissipation groove and is connected to the moving mold. The conveying assembly includes a conveying body and a discharge end. The conveying body is disposed inside the tube, the discharge end is connected to the conveying body, and the discharge end is connected to the fixed mold. The conveying body consists of a mandrel and several conveying grooves. The mandrel is located inside the tube and several heating rods are installed inside the mandrel. The conveying grooves are arranged around the axis of the mandrel.

[0005] The fixed mold and the moving mold form the mold. Then, the material conveying assembly moves to the side closer to the mold, so that the material conveying assembly docks with the mold. During the movement of the material conveying assembly, waste plastic granules are conveyed to the pipe through the hopper. Under the action of the conveying body, the waste plastic granules move along the pipe, and melt into molten plastic during the conveying process. The molten plastic is then conveyed to the side closer to the discharge end and finally conveyed to the mold through the discharge end for injection molding. After the molten plastic is conveyed to the mold, cold air is conveyed to the heat dissipation tank under the action of the chimney effect and the drive of the suction fan. The cold air flows through the heat dissipation tank and carries away the heat in the mold, thereby achieving the effect of heat dissipation and cooling.

[0006] Preferably, the heat dissipation groove is composed of a straight groove, a vibration groove, and an inclined groove. The vibration groove is located between the straight groove and the inclined groove. The side of the straight groove away from the vibration groove is connected to the outside. The side of the inclined groove away from the vibration groove is provided with a support groove, which is connected to the outside.

[0007] Outside cold air is input through a straight trough, then transported from the straight trough to a vibrating trough, then from the vibrating trough to an inclined trough, then from the inclined trough to a support trough, and finally output from the support trough.

[0008] Preferably, a vibrating ball is provided in the vibration groove, and the vibrating ball is connected to the vibration groove through an elastic element. A guide post is provided at the connection between the vibration groove and the straight groove, so that the fluid in the straight groove forms a vortex fluid after flowing through the guide post.

[0009] As molten plastic is conveyed into the molding cavity of the mold, the heat from the molten plastic is rapidly transferred to the mold, causing the temperature near the heat dissipation tank to rise. When the temperature in the heat dissipation tank increases, under the chimney effect, cool air from the outside is introduced through the straight channel and moves along the straight channel towards the vibrating channel. When the cool air reaches the connection between the straight channel and the vibrating channel, it impacts the guide pillars, transforming the smooth flow layer into a vortex flow. The vortex flow continues to flow into the vibrating channel and encounters vibrating balls within it. The vibrating balls oscillate under the influence of the vortex flow, impacting the vibrating channel during oscillation. This facilitates the venting of molten plastic from the molding cavity and improves the efficiency of the molded part separating from the moving mold through vibration. Simultaneously, the cool air, conveyed through the heat dissipation tank, carries away the heat generated during the injection molding of the molten plastic, thus achieving a cooling effect.

[0010] Preferably, a material distribution plate is provided at the end of the conveying trough near the hopper, and a flow distribution plate is provided at the end of the conveying trough near the mold, and the flow distribution plate is connected to the discharge end.

[0011] Waste plastic granules in the hopper are conveyed towards the side of the pipe body, and then from the end of the pipe body near the hopper towards the side of the pipe body near the mold. Before entering the pipe body, the waste plastic granules flow through the distribution plate, which directs them to several conveying troughs. Once the waste plastic granules enter the conveying trough, the controller activates the heating rod inside the mandrel. The heating rod generates heat, which is transferred through the mandrel to the waste plastic granules in the conveying trough, thus heating and melting the waste plastic granules to form molten plastic. The molten plastic continues to move along the conveying trough and finally flows through the conveying trough to the distribution plate, then through the distribution plate to the discharge end, and finally from the discharge end to the mold for injection molding.

[0012] Preferably, the discharge end consists of a plurality of discharge ports, each of which corresponds to a conveying trough. A deflector is provided on the side of each discharge port away from the conveying trough, and the deflector is connected to the discharge port. The discharge port is also connected to the conveying trough.

[0013] The molten plastic flowing through the distribution plate is conveyed to the side near the outlet and then to the mold. After the material conveying assembly is connected to the mold, the outlet is connected to the injection port of the fixed mold. The molten plastic is then conveyed to the deflection tube through the outlet. Because the deflection tube is offset to the side away from the outlet axis, the molten plastic is conveyed to the mold through the deflection tube and then immediately spreads to the periphery of the mold. Unlike the existing method of spreading from the center to the periphery through injection pressure, the molten plastic spreads to the periphery from the beginning through the deflection tube and then spreads from the periphery to the center. This prevents the molten plastic from solidifying rapidly in the mold due to the temperature of the mold, thus avoiding defects in the molded parts and improving the quality of injection molding.

[0014] Preferably, the conveying trough is spiral-shaped, and the distance between the conveying troughs gradually decreases from the end near the hopper to the end near the mold, and the conveying channel of the discharge port gradually narrows from the end near the conveying trough to the end near the mold.

[0015] Because the conveying trough is spiral-shaped and the distance between the conveying troughs gradually decreases from the end near the hopper to the end near the mold, the molten plastic will be subjected to strong shearing and stretching when it flows in the conveying trough with the continuously decreasing distance. As the molten plastic moves along the conveying trough, it will convert mechanical energy into heat energy, thereby raising the temperature of the molten plastic itself and further reducing the external heating pressure. Meanwhile, as the conveying channel gradually narrows from the end near the conveying trough to the end near the mold, the molten plastic can also achieve a heat preservation effect in the conveying area of ​​the outlet, preventing the molten plastic from condensing and blocking the outlet. Furthermore, the gradually narrowing conveying channel of the outlet allows the molten plastic to flow inside, which increases the speed and thus improves the efficiency of injecting the molten plastic into the mold, further shortening the injection time of the molded part. The spiral-shaped conveying groove divides the inside of the tube into multiple thin-layer flow channels, allowing the molten plastic to flow in a thin layer close to the mandrel (heat source). This results in higher efficiency of heat conduction by the mandrel, avoiding thermal decomposition caused by the molten plastic remaining in the high-temperature zone for a long time. Furthermore, the spiral motion causes the molten plastic to continuously tumble and mix in the radial direction, eliminating the laminar flow state of "outer layer wrapping inner layer" in the tube.

[0016] Preferably, a driving device is provided at the end of the moving mold away from the fixed mold. The driving device is connected to the moving mold via a hinge rod and a slide rod, respectively. The moving mold is hinged to the hinge rod and slidably connected along the slide rod. A top post is provided on the side of the driving device close to the moving mold. The top post extends into the moving mold and is slidably and sealingly connected with the moving mold. The top post is used to demold the molded part from the moving mold.

[0017] The drive device moves the hinge rod back and forth, causing the hinge rod to slide the moving mold along the sliding rod, thereby realizing the mold closing and opening operations of the moving mold and the fixed mold. When the moving mold and the fixed mold are closed, the ejector pin disengages from the molding cavity in the mold. When the moving mold and the fixed mold are opened, the moving mold drives the molded part to move away from the fixed mold along the sliding rod. During the movement, the moving mold also moves along the ejector pin. At this time, the ejector pin moves closer to the molding cavity of the mold, and then contacts the molded part during the movement, thus ejecting the molded part, thereby realizing the demolding process of the molded part from the moving mold.

[0018] Preferably, a power component is provided on the side of the conveying assembly away from the mold, and the power component is connected to the conveying body.

[0019] After the waste plastic granules enter the conveying trough, the controller starts the power component, which drives the spindle to rotate. During the rotation of the spindle, the spindle drives several conveying troughs to rotate, and the waste plastic granules are melted and conveyed in the pipe body through the rotation of the conveying troughs.

[0020] An injection molding process for a fast heat dissipation injection molding machine, the injection molding process comprising the following specific steps: S1. Waste plastic granules are conveyed into the pipe body through the hopper and melted in the pipe body; S2. While the waste plastic granules are melting, they are conveyed towards the discharge end. During this process, the fixed mold and the moving mold close together to form a mold. S3. Molten plastic is conveyed to the mold through the discharge end for injection molding; S4. During the injection molding process, cold air flows along the heat dissipation grooves and carries away the heat generated during the injection process. S5. After cooling is complete, the moving mold separates from the fixed mold, and the moving mold moves to the side away from the fixed mold. S6. During the movement of the moving mold, the ejector pin extends into the moving mold to demold the molded part.

[0021] Compared with the prior art, the beneficial effects of the present invention are: 1. By spirally arranging multiple conveying grooves on the mandrel surface, the inside of the tube is divided into multiple thin-layer flow channels, allowing the waste plastic melt to flow closely to the heat source in a thin layer, which significantly improves the heat transfer efficiency and avoids the laminar flow phenomenon of "outer layer wrapping inner layer" in traditional screw conveyors. At the same time, the distance between the conveying grooves gradually shortens from the end near the hopper to the mold end. The melt is subjected to continuously enhanced shearing and stretching during the flow process, converting mechanical energy into heat energy, realizing the self-heating of the melt, and reducing the energy consumption of external heating.

[0022] 2. The discharge port channel gradually narrows and is combined with a deflection tube design, so that the melt diffuses from the edge to the center when injected into the mold, avoiding early solidification and molding defects caused by uneven mold temperature.

[0023] 3. The heat dissipation tank is equipped with guide pillars and vibrating balls. When cold air flows through the heat dissipation tank under the chimney effect and the action of the suction fan, it is induced by the guide pillars to form a vortex fluid, which drives the vibrating balls to swing back and forth and hit the tank wall. On the one hand, the vibration promotes the discharge of gas in the mold and the uniform filling of the melt, and on the other hand, it accelerates the heat dissipation and improves the cooling efficiency. During the movement of the moving mold, the ejector pillar automatically demolds, further shortening the molding cycle. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a structural schematic diagram of the mold and material conveying assembly; Figure 3 This is a cross-sectional structural diagram of the mold and material conveying assembly; Figure 4 A cross-sectional front view of the mold and material conveying assembly; Figure 5 This is a schematic diagram of the moving mold structure; Figure 6 for Figure 4 Enlarged view of point A in the middle; Figure 7 This is a structural diagram of the conveyor body and the discharge end; Figure 8 This is a schematic diagram of the cross-sectional structure of the conveyor and the discharge end.

[0025] In the diagram: 1. Mold; 11. Fixed mold; 12. Moving mold; 13. Ejector pin; 2. Material conveying assembly; 21. Hopper; 22. Tube body; 3. Heat dissipation components; 31. Heat dissipation slots; 32. Suction fan; 33. Straight slots; 34. Vibration slots; 35. Angled slots; 36. Support slots; 37. Vibration balls; 38. Guide columns; 4. Conveying assembly; 41. Conveying body; 42. Discharge end; 421. Discharge port; 43. Mandrel; 44. Conveying trough; 441. Dividing plate; 442. Diverting plate; 45. Deflecting pipe. Detailed Implementation

[0026] 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 some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Example: Figures 1-8 As shown, the present invention provides a technical solution: a fast heat dissipation injection molding machine, including a mold 1 and a material conveying assembly 2, wherein the mold 1 is connected to the material conveying assembly 2; the mold 1 includes a fixed mold 11 and a moving mold 12, wherein the fixed mold 11 is connected to the moving mold 12, and the moving mold 12 is provided with a heat dissipation assembly 3; a hopper 21 is provided on one side of the material conveying assembly 2, and the material conveying assembly 2 includes a pipe body 22 and a conveying assembly 4, wherein the pipe body 22 is connected to the hopper 21; The heat dissipation component 3 includes a heat dissipation groove 31 and a suction fan 32. The heat dissipation groove 31 is disposed inside the moving mold 12 and penetrates the inner wall of the moving mold 12. The suction fan 32 is disposed at one end of the heat dissipation groove 31 and is connected to the moving mold 12. The conveying assembly 4 includes a conveying body 41 and a discharge end 42. The conveying body 41 is disposed inside the tube 22, and the discharge end 42 is connected to the conveying body 41 and communicates with the fixed mold 11. The conveying body 41 consists of a spindle 43 and several conveying grooves 44. The spindle 43 is located inside the tube 22, and several heating rods are arranged inside the spindle 43. The conveying grooves 44 are arranged around the axis of the spindle 43.

[0028] Preferably, a driving device is provided at the end of the moving mold 12 away from the fixed mold 11. The driving device is connected to the moving mold 12 through a hinge rod and a slide rod respectively. The moving mold 12 is hinged to the hinge rod and slidably connected along the slide rod. A top post 13 is provided on the side of the driving device close to the moving mold 12. The top post 13 extends into the moving mold 12 and is slidably and sealingly connected with the moving mold 12. The top post 13 is used to demold the molded part from the moving mold 12.

[0029] Preferably, the heat dissipation groove 31 is composed of a straight groove 33, a vibration groove 34 and an inclined groove 35. The vibration groove 34 is located between the straight groove 33 and the inclined groove 35. The side of the straight groove 33 away from the vibration groove 34 is connected to the outside. The side of the inclined groove 35 away from the vibration groove 34 is provided with a support groove 36, which is connected to the outside.

[0030] Preferably, a vibrating ball 37 is provided in the vibration groove 34, and the vibrating ball 37 is connected to the vibration groove 34 through an elastic element. A guide post 38 is provided at the connection between the vibration groove 34 and the straight groove 33, so that the fluid in the straight groove 33 forms a vortex fluid after flowing through the guide post 38.

[0031] Preferably, a power component is provided on the side of the conveying assembly 4 away from the mold 1, and the power component is connected to the conveying body 41.

[0032] Preferably, a material distribution plate 441 is provided at one end of the conveying trough 44 near the hopper 21, and a flow distribution plate 442 is provided at one end of the conveying trough 44 near the mold 1. The flow distribution plate 442 is connected to the discharge end 42.

[0033] Preferably, the conveying trough 44 is spiral-shaped, and the distance between the conveying trough 44 gradually decreases from the end near the hopper 21 to the end near the mold 1.

[0034] Preferably, the discharge end 42 is composed of a plurality of discharge ports 421, each of which corresponds to a conveying trough 44. A deflection tube 45 is provided on the side of the discharge port 421 away from the conveying trough 44. The deflection tube 45 is connected to the discharge port 421, and the discharge port 421 is connected to the conveying trough 44.

[0035] Preferably, the discharge port 421 gradually narrows from the end near the conveying trough 44 to the end near the mold 1.

[0036] An injection molding process for a fast heat dissipation injection molding machine, the injection molding process comprising the following specific steps: S1. Waste plastic granules are conveyed through hopper 21 into pipe body 22 and melted in pipe body 22. S2. While the waste plastic granules are melting, they are conveyed to the discharge end 42. During this process, the fixed mold 11 and the moving mold 12 close together to form the mold 1. S3. Molten plastic is conveyed to mold 1 through discharge end 42 for injection molding; S4. During the injection molding process, cold air flows along the heat dissipation groove 31 and carries away the heat generated during the injection process. S5. After cooling is complete, the moving mold 12 and the fixed mold 11 open, and the moving mold 12 moves to the side away from the fixed mold 11. S6. During the movement of the moving mold 12, the ejector pin 13 extends into the moving mold 12 to demold the molded part.

[0037] Working principle of the invention: The fixed mold 11 and the moving mold 12 form the mold 1. Then the conveying assembly 2 moves to the side closer to the mold 1, so that the conveying assembly 2 docks with the mold 1. During the movement of the conveying assembly 2, the waste plastic particles are conveyed to the pipe body 22 through the hopper 21. The waste plastic particles move along the pipe body 22 under the action of the conveying body 41, so that the waste plastic particles melt to form molten plastic during the conveying process and are conveyed to the side closer to the discharge end 42. The hinge rod is driven to move back and forth by the drive device, so that the hinge rod drives the moving mold 12 to slide along the sliding rod, thereby realizing the mold closing and opening operations of the moving mold 12 and the fixed mold 11. When the moving mold 12 and the fixed mold 11 are closed, the ejector pin 13 is disengaged from the forming cavity in the mold 1. Waste plastic granules in hopper 21 are conveyed to the side near pipe body 22, and then conveyed from the end of pipe body 22 near hopper 21 to the side of pipe body 22 near mold 1. Before entering pipe body 22, the waste plastic granules flow through distribution plate 441, so that the waste plastic granules flow through distribution plate 441 to several conveying troughs 44 for conveying. When the waste plastic granules enter the conveying trough 44, the controller controls the heating rod in the mandrel 43 to start. The heating rod generates heat after being energized, and the heat is transferred through mandrel 43 to the waste plastic granules in the conveying trough 44, thereby heating and melting the waste plastic granules to form molten plastic. The molten plastic continues to move along the conveying trough 44, and finally flows through the conveying trough 44 to the diversion plate 442, and through the diversion plate 442 to the discharge end 42. Since the conveying trough 44 is spiral-shaped and the distance between the conveying trough 44 and the end closer to the mold 1 gradually decreases, the molten plastic will be subjected to strong shearing and stretching when it flows in the conveying trough 44 with the distance constantly decreasing. As the molten plastic moves along the conveying trough 44, it will convert mechanical energy into heat energy, thereby raising the temperature of the molten plastic itself and further reducing the external heating pressure. Meanwhile, as the conveying channel of the discharge port 421 gradually narrows from the end near the conveying groove 44 to the end near the mold 1, the molten plastic can also achieve a heat preservation effect in the conveying area of ​​the discharge port 421, preventing the molten plastic from condensing and blocking the discharge port 421. Furthermore, the gradually narrowing conveying channel of the discharge port 421 allows the molten plastic to flow inside, which increases the speed and thus improves the efficiency of injecting the molten plastic into the mold 1, further shortening the injection time of the molded part. The spirally arranged conveying groove 44 divides the interior of the tube 22 into multiple thin-layer flow channels, allowing the molten plastic to flow in a thin layer close to the mandrel 43 (heat source). As a result, the mandrel 43 has a high efficiency in conducting heat, avoiding thermal decomposition caused by the molten plastic staying in the high-temperature zone for a long time. Furthermore, the spiral motion causes the molten plastic to continuously tumble and mix in the radial direction, eliminating the laminar flow state of "outer layer wrapping inner layer" in the tube 22. The molten plastic flowing through the distribution plate 442 is conveyed to the outlet 421 and then to the mold 1. After the material conveying component 2 docks with the mold 1, the outlet 421 is connected to the injection port of the fixed mold 11. The molten plastic is then conveyed to the deflection tube 45 through the outlet 421. Since the deflection tube 45 is offset to the side away from the axis of the outlet 421, the molten plastic is conveyed to the mold 1 through the deflection tube 45 and then immediately spreads to the periphery of the mold 1. Unlike the existing method of spreading from the center to the periphery through injection pressure, the molten plastic spreads to the periphery from the beginning through the deflection tube 45 and then spreads from the periphery to the center. This prevents the molten plastic from solidifying rapidly in the mold 1 due to the temperature of the mold 1, thus avoiding the occurrence of missing parts in the molded parts. As the molten plastic is transported to the molding cavity of mold 1, the heat of the molten plastic is rapidly transferred to mold 1, causing the temperature of mold 1 near the heat dissipation tank 31 to rise. When the heat in the heat dissipation tank 31 rises, under the effect of the chimney effect, cold air from the outside will be input through the straight groove 33 and move along the straight groove 33 towards the side near the vibration tank 34. When the cold air is transported to the connection between the straight groove 33 and the vibration tank 34, the cold air will hit the guide post 38, and then change from a smooth flow layer to a vortex fluid. The vortex fluid continues to be transported to the vibration tank 34 and encounters the vibrating ball 37 in the vibration tank 34. The vibrating ball 37 then swings under the action of the vortex fluid, causing the vibrating ball 37 to hit the vibration tank 34 during the swinging process, thereby facilitating the venting of the molten plastic in the molding cavity. Furthermore, the vibration can improve the efficiency of the molded part separating from the moving mold 12. At the same time, the cold air is transported through the heat dissipation tank 31, carrying away the heat of the molten plastic injection molding. Outside cold air is input through straight groove 33, then transported from straight groove 33 to vibrating groove 34, then transported from vibrating groove 34 to inclined groove 35, then transported from inclined groove 35 to support groove 36, and finally output from support groove 36 to the outside. When the moving mold 12 opens with the fixed mold 11, the moving mold 12 drives the molded part to move away from the fixed mold 11 along the sliding rod. During the movement, the moving mold 12 also moves along the ejector pin 13. At this time, the ejector pin 13 moves closer to the molding cavity of the mold 1. As a result, the ejector pin 13 will contact the molded part during the movement, thereby ejecting the molded part and realizing the demolding process between the molded part and the moving mold 12.

[0038] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A rapid heat dissipation injection molding machine, characterized in that: The assembly includes a mold (1) and a material conveying component (2), wherein the mold (1) is connected to the material conveying component (2); the mold (1) includes a fixed mold (11) and a moving mold (12), wherein the fixed mold (11) is connected to the moving mold (12), and the moving mold (12) is provided with a heat dissipation component (3); a hopper (21) is provided on one side of the material conveying component (2), wherein the material conveying component (2) includes a pipe (22) and a conveying component (4), wherein the pipe (22) is connected to the hopper (21); The heat dissipation component (3) includes a heat dissipation groove (31) and a suction fan (32). The heat dissipation groove (31) is disposed inside the moving mold (12) and penetrates the inner wall of the moving mold (12). The suction fan (32) is disposed at one end of the heat dissipation groove (31) and is connected to the moving mold (12). The conveying assembly (4) includes a conveying body (41) and a discharge end (42). The conveying body (41) is disposed inside the tube (22). The discharge end (42) is connected to the conveying body (41) and is connected to the fixed mold (11). The conveying body (41) consists of a mandrel (43) and several conveying grooves (44). The mandrel (43) is located inside the tube (22). Several heating rods are provided inside the mandrel (43). The conveying grooves (44) are arranged around the axis of the mandrel (43).

2. The rapid heat dissipation injection molding machine according to claim 1, characterized in that: The heat dissipation groove (31) is composed of a straight groove (33), a vibration groove (34) and an inclined groove (35). The vibration groove (34) is located between the straight groove (33) and the inclined groove (35). The side of the straight groove (33) away from the vibration groove (34) is connected to the outside. The side of the inclined groove (35) away from the vibration groove (34) is provided with a support groove (36), which is connected to the outside.

3. The rapid heat dissipation injection molding machine according to claim 2, characterized in that: The vibration groove (34) is provided with a vibration ball (37), which is connected to the vibration groove (34) through an elastic element. A guide post (38) is provided at the connection between the vibration groove (34) and the straight groove (33). The guide post (38) causes the fluid in the straight groove (33) to form a vortex fluid after flowing through it.

4. The rapid heat dissipation injection molding machine according to claim 1, characterized in that: The conveying trough (44) is provided with a material distribution plate (441) at one end near the hopper (21), and a flow distribution plate (442) is provided at one end near the mold (1). The flow distribution plate (442) is connected to the discharge end (42).

5. A rapid heat dissipation injection molding machine according to claim 1, characterized in that: The discharge end (42) consists of several discharge ports (421), each of which corresponds to a conveying trough (44). A deflector tube (45) is provided on the side of the discharge port (421) away from the conveying trough (44). The deflector tube (45) is connected to the discharge port (421), and the discharge port (421) is connected to the conveying trough (44).

6. A rapid heat dissipation injection molding machine according to claim 5, characterized in that: The conveying trough (44) is spiral-shaped, and the distance between the conveying trough (44) and the end near the hopper (21) gradually decreases. The discharge port (421) gradually narrows from the end near the conveying trough (44) to the end near the mold (1).

7. A rapid heat dissipation injection molding machine according to claim 1, characterized in that: A driving device is provided at the end of the moving mold (12) away from the fixed mold (11). The driving device is connected to the moving mold (12) through a hinge rod and a slide rod respectively. The moving mold (12) is hinged to the hinge rod and slidably connected along the slide rod. A top post (13) is provided on the side of the driving device close to the moving mold (12). The top post (13) extends into the moving mold (12) and is slidably and sealingly connected with the moving mold (12). The top post (13) is used to demold the molded part from the moving mold (12).

8. A rapid heat dissipation injection molding machine according to claim 1, characterized in that: The conveying assembly (4) has a power component on the side away from the mold (1), and the power component is connected to the conveying body (41).

9. An injection molding process applicable to a fast-heat dissipation injection molding machine as described in any one of claims 1-8, characterized in that: The injection molding process includes the following specific steps: S1. Waste plastic granules are conveyed through the hopper (21) into the pipe body (22) and melted in the pipe body (22); S2. While the waste plastic granules are melting, they are conveyed to the discharge end (42). During this process, the fixed mold (11) and the moving mold (12) close together to form the mold (1). S3. Molten plastic is conveyed to mold (1) through the discharge end (42) for injection molding; S4. During the injection molding process, cold air flows along the heat dissipation groove (31) and carries away the heat generated during the injection process. S5. After cooling is complete, the moving mold (12) and the fixed mold (11) open, and the moving mold (12) moves to the side away from the fixed mold (11); S6. During the movement of the moving mold (12), the top post (13) extends into the moving mold (12) to demold the molded part.

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