A 3D printing waste efficient recycling device based on an intelligent closed-loop control system

Abstract

The utility model discloses a 3D printing waste material efficient recycling device based on intelligent closed loop control system, include: device frame, device frame includes the underframe and top frame, crushing mechanism, crushing mechanism includes the crushing box of installing on the top frame, is installed in the crushing box and has the crushing subassembly, granulating mechanism, granulating mechanism includes granulating subassembly and cutting component, and granulating subassembly includes the granulating box of installing on the top frame, is installed in the granulating box and has the propulsion subassembly, and the granulating box's discharge end is installed with model orifice plate and heating unit, extrusion mechanism, extrusion mechanism includes X -axis movement subassembly, Y -axis movement subassembly, the mounting frame, the receiving box and extruding component, 3D printing mechanism, including Z -axis movement subassembly and hot bed, Z -axis movement subassembly is arranged perpendicularly on the underframe, and hot bed is installed on Z -axis movement subassembly, and hot bed and extruding component correspond arrangement. The utility model discloses the closed loop production mode of printing - recycling - reprinting, makes material utilization rate promote, still can effectively reduce production cost.

Description

Technical Field

[0001] This utility model relates to the field of 3D printing technology, and in particular to a device for efficient recycling and reuse of 3D printing waste based on an intelligent closed-loop control system. Background Technology

[0002] With the rapid development of rapid prototyping and personalized manufacturing trends, 3D printing technology is gradually becoming widely used in industrial production and home applications. However, traditional 3D printing devices generally suffer from problems such as high material loss rates, printing failures due to design deviations, and insufficient precision of finished products. These problems not only result in a large waste of reusable materials but also significantly increase production costs. At the same time, the plastic waste generated also puts a certain degree of pollution pressure on the environment.

[0003] To address the aforementioned problems, this invention innovatively proposes a device for the efficient recycling and reuse of 3D printing waste based on an intelligent closed-loop control system. Utility Model Content

[0004] The purpose of this invention is to provide a device for the efficient recycling and reuse of 3D printing waste based on an intelligent closed-loop control system, so as to solve the problems existing in the prior art.

[0005] To achieve the above objectives, this utility model provides the following solution: This utility model provides a device for efficient recycling and reuse of 3D printing waste based on an intelligent closed-loop control system, comprising: The device frame includes a base frame and a top frame, with the top frame fixed to the top of the base frame; A crushing mechanism, comprising a crushing box mounted on the top frame, wherein crushing components are installed inside the crushing box; The granulation mechanism includes a granulation component and a cutting component. The granulation component includes a granulation box mounted on a top frame. A propulsion component is installed inside the granulation box. The feed inlet of the granulation box corresponds to the discharge outlet of the crushing box. A mold perforated plate and a heating unit are installed at the discharge end of the granulation box. The cutting component is arranged correspondingly to the mold perforated plate. An extrusion mechanism includes an X-axis moving assembly, a Y-axis moving assembly, a mounting frame, a receiving box, and an extrusion assembly. The X-axis moving assembly is arranged on the top of the base frame, the mounting frame is mounted on the Y-axis moving assembly, the X-axis moving assembly is arranged on the mounting frame, the receiving box is mounted on the X-axis moving assembly, the receiving box is arranged corresponding to the discharge end of the granulation box, and the extrusion assembly is installed at the bottom of the receiving box for extruding material. A 3D printing mechanism includes a Z-axis moving component and a heated bed. The Z-axis moving component is vertically arranged on the base frame, and the heated bed is mounted on the Z-axis moving component. The heated bed is arranged correspondingly to the extrusion component.

[0006] The efficient recycling and reuse device for 3D printing waste based on an intelligent closed-loop control system provided by the present invention includes a crushing component comprising: A crushing motor, which is mounted on the top frame; The crushing blades are arranged in two sets, which are symmetrically connected by a rotating axis within the crushing box, and the blade portions of the two sets of crushing blades are staggered. The gears are provided in two sets, with the ends of the two sets of rotating shafts extending through the crushing box, and the two sets of gears are fixed on the two sets of rotating shafts respectively, and the two sets of gears mesh with each other; The crushing motor is axially connected to one of the sets of rotating shafts.

[0007] According to the present invention, a high-efficiency recycling and reuse device for 3D printing waste based on an intelligent closed-loop control system is provided, wherein the propulsion component includes: A propulsion motor, which is fixed to the top frame; An auger is horizontally rotatably connected inside the granulation box, and one end of the auger is fixed to the output shaft of the propulsion motor; The granulation box has a discharge hole on its side wall, a discharge pipe is installed on the discharge hole, the heating unit is installed on the outer wall of the end of the discharge pipe, the mold plate is installed at the end of the discharge pipe, and a heat dissipation unit is installed on the discharge pipe.

[0008] The 3D printing waste high-efficiency recycling and reuse device based on an intelligent closed-loop control system provided by the present invention includes a cutting component comprising: A cutting motor, which is fixed to the top frame; A mounting shaft is fixed to the output shaft of the cutting motor, and a cutting blade is mounted on the outer wall of the mounting shaft, the cutting blade being arranged correspondingly to the model hole plate.

[0009] According to the present invention, a highly efficient recycling and reuse device for 3D printing waste based on an intelligent closed-loop control system is provided, wherein the Y-axis moving component includes: A first linear axis is symmetrically fixed to the top of the base frame; Y-axis motor, the Y-axis motor is fixed on the base frame; The first synchronous pulley is provided in two sets. One set of the first synchronous pulleys is rotatably connected to the top of the base frame, and the other set of the first synchronous pulleys is fixed to the Y-axis motor. The two sets of the first synchronous pulleys are connected by a first synchronous belt.

[0010] According to the present invention, a highly efficient recycling and reuse device for 3D printing waste based on an intelligent closed-loop control system is provided, wherein the X-axis moving component includes: The second linear shaft has two sets arranged in parallel. Each end of the second linear shaft is fixed with a sliding seat. The sliding seat is slidably connected to the first linear shaft and fixed to the first synchronous belt. The second synchronous pulley is provided in two sets. The two sets of the second synchronous pulleys are symmetrically rotatably connected to the two sets of sliding seats. The two sets of the second synchronous pulleys are driven by the second synchronous belt. An X-axis motor is fixed on one of the sets of sliding seats and is also fixed to the second synchronous pulley. The mounting base is slidably connected to the second linear shaft, the mounting base is fixed to the second synchronous belt, and the receiving box is fixed on the mounting base.

[0011] According to the present invention, a high-efficiency recycling and reuse device for 3D printing waste based on an intelligent closed-loop control system is provided, wherein the extrusion assembly includes: The mounting bracket is mounted on the receiving box, and a through groove is provided at the bottom of the mounting bracket, with the bottom of the receiving box communicating with the through groove; An extrusion tube is fixed to the bottom of the mounting frame and communicates with the through groove; The extrusion motor is fixed on the side wall of the receiving box. The output shaft of the extrusion motor is equipped with a planetary reducer. The output shaft of the planetary reducer is connected to an extrusion rod through a coupling. The extrusion rod passes through the through groove and extends into the extrusion tube. The nozzle is installed at the bottom of the extrusion tube and is arranged corresponding to the heated bed. A heating block is installed at the bottom of the extrusion tube. A heat dissipation pipe is installed on the extrusion pipe and is located between the mounting bracket and the heating block.

[0012] According to the present invention, a highly efficient recycling and reuse device for 3D printing waste based on an intelligent closed-loop control system is provided, wherein the Z-axis moving component includes: Z-axis motors, two sets of which are symmetrically installed at the bottom of the base frame; A mounting frame, which is fixed to the bottom of the heated bed; A vertical optical axis, wherein several sets of vertical optical axes are symmetrically fixed on the base frame, and the mounting frame is slidably connected to the vertical optical axis; The screw is provided in two sets, and the two sets of screws are respectively fixed on the Z-axis motor. The top end of the screw is rotatably connected to the base frame. The screw passes through the mounting frame and is threadedly connected to the mounting frame.

[0013] The present invention discloses the following technical effects: This invention employs a three-stage processing technology to achieve material recycling: first, the waste material is crushed into powder through an intelligent crushing system; then, the powder is transformed into standardized particle size particles that meet printing requirements through a precision granulation system; finally, the recycled material is molded into high-quality form through a specially designed extruder equipped with an intelligent temperature control system and an optimized 3D printing program.

[0014] This invention not only achieves a closed-loop production model of "printing-recycling-reprinting," improving material utilization, but also effectively reduces production costs. Simultaneously, by minimizing waste emissions, it significantly reduces the environmental impact of the 3D printing process, providing a practical solution for achieving green and intelligent manufacturing. Furthermore, the system is compatible with various common 3D printing materials, including PLA and TPU, demonstrating broad applicability and promising market prospects. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of the 3D printing waste high-efficiency recycling and reuse device based on an intelligent closed-loop control system of this utility model. Figure 2 This is a schematic diagram showing the positional relationship between the crushing mechanism, granulation mechanism, and extrusion mechanism of this utility model; Figure 3 This is an isometric view of the crushing mechanism of this utility model; Figure 4 This is an isometric view of the granulation mechanism of this utility model; Figure 5 This is an isometric view of the extrusion mechanism of this utility model; Figure 6 This is a schematic diagram of the 3D printing mechanism of this utility model.

[0017] The components are as follows: 1. Base frame; 2. Top frame; 3. Crushing box; 4. Granulation box; 5. Model perforated plate; 6. Heating unit; 7. Receiving box; 8. Heated bed; 9. Crushing motor; 10. Crushing cutter; 11. Gear; 12. Propulsion motor; 13. Screw; 14. Heat dissipation unit; 15. Cutting motor; 16. Mounting shaft; 17. Cutting blade; 18. First linear shaft; 19. Second linear shaft; 20. Sliding seat; 21. Mounting seat; 22. Mounting frame; 23. Extrusion motor; 24. Planetary reducer; 25. Extrusion rod; 26. Nozzle; 27. Heat dissipation pipe; 28. Heating block; 29. ​​Z-axis motor; 30. Mounting frame; 31. Vertical optical shaft; 32. Screw; 33. Coupling. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] Reference Figures 1-6 This utility model provides a device for efficient recycling and reuse of 3D printing waste based on an intelligent closed-loop control system, comprising: The device frame includes a base frame 1 and a top frame 2, with the top frame 2 fixed to the top of the base frame 1; The crushing mechanism includes a crushing box 3 mounted on the top frame 2, and crushing components are installed inside the crushing box 3. The granulation mechanism includes a granulation component and a cutting component. The granulation component includes a granulation box 4 installed on the top frame 2. A propulsion component is installed inside the granulation box 4. The feed inlet of the granulation box 4 corresponds to the discharge outlet of the crushing box 3. A mold perforated plate 5 and a heating unit 6 are installed at the discharge end of the granulation box 4. The cutting component is arranged correspondingly to the mold perforated plate 5. The extrusion mechanism includes an X-axis moving assembly, a Y-axis moving assembly, a mounting frame 30, a receiving box 7, and an extrusion assembly. The X-axis moving assembly is arranged on the top of the base frame 1, the mounting frame 30 is mounted on the Y-axis moving assembly, the X-axis moving assembly is arranged on the mounting frame 30, the receiving box 7 is mounted on the X-axis moving assembly, and the receiving box 7 is arranged corresponding to the discharge end of the granulation box 4. The extrusion assembly is installed at the bottom of the receiving box 7 for extrusion. The 3D printing mechanism includes a Z-axis moving component and a heated bed 8. The Z-axis moving component is vertically arranged on the base frame 1, and the heated bed 8 is mounted on the Z-axis moving component. The heated bed 8 is arranged correspondingly to the extrusion component.

[0021] This invention achieves efficient recycling and reuse of 3D printing waste through a continuous process of "crushing → granulation → extrusion → printing → recycling": First, the crushing mechanism breaks the waste into small fragments; then, the granulation mechanism pushes the fragments through the propulsion component, the heating unit 6 melts the fragments, and extrudes them into strip-shaped melt through the model perforated plate 5, which is then cut into uniform recycled material particles by the cutting component; next, the receiving box 7 of the extrusion mechanism receives the particles, and its bottom extrusion component, in conjunction with the X / Y axis moving component, achieves precise feeding; the 3D printing mechanism, through the Z-axis moving component, drives the heated bed 8 to rise and fall, coordinating with the X / Y axis movement of the extrusion component to complete the layer printing. Simultaneously, the intelligent closed-loop control system uses sensors at each stage to collect parameters in real time (such as particle size, melt temperature, extrusion flow rate, etc.), compares them with preset standards, and dynamically adjusts the corresponding components to ensure the quality of recycled material and printing accuracy, ultimately forming a closed-loop cycle of "waste → recycled material → new printed part," improving material utilization.

[0022] Further optimization of the solution includes the following components for crushing: Crushing motor 9 is mounted on top frame 2; The crushing cutter 10 has two sets of crushing cutters 10 that are symmetrically connected by a rotating axis inside the crushing box 3, and the blades of the two sets of crushing cutters 10 are staggered. Gear 11, two sets of gear 11 are provided, the ends of the two sets of rotating shafts extend through the crushing box 3 respectively, the two sets of gear 11 are fixed on the two sets of rotating shafts respectively, and the two sets of gear 11 mesh with each other; Among them, the crushing motor 9 is shaft-connected to one of the sets of rotating shafts.

[0023] The crushing motor 9 drives a set of rotating shafts to rotate, which in turn drives another set of rotating shafts to rotate in the opposite direction through two sets of meshing gears 11. This causes the two sets of staggered crushing blades 10 inside the crushing box 3 to rotate relative to each other, thus shearing and crushing the 3D printing waste.

[0024] Further optimization of the solution and advancement of components include: The propulsion motor 12 is fixed on the top frame 2; Screw 13 is horizontally rotatably connected inside the granulation box 4, and one end of screw 13 is fixed to the output shaft of the propulsion motor 12. The granulation box 4 has a discharge hole on its side wall, a discharge pipe is installed on the discharge hole, a heating unit 6 is installed on the outer wall of the end of the discharge pipe, a mold perforated plate 5 is installed at the end of the discharge pipe, and a heat dissipation unit 14 is installed on the discharge pipe.

[0025] The propulsion motor 12 drives the auger 13 inside the granulation box 4 to rotate, pushing the crushed waste fragments; after the fragments are melted by the heating unit 6, they are extruded through the discharge pipe and the end mold plate 5. The heat dissipation unit 14 adjusts the temperature of the discharge pipe to avoid excessive cooling or overheating of the melt.

[0026] Further optimization of the solution, including component cutting: Cutting motor 15 is fixed on top frame 2; Mounting shaft 16 is fixed on the output shaft of cutting motor 15. Cutting blade 17 is mounted on the outer wall of mounting shaft 16 and is arranged correspondingly to model hole plate 5.

[0027] The cutting motor 15 drives the mounting shaft 16 to rotate, which in turn drives the cutting blade 17 on the mounting shaft 16 to rotate at high speed. In conjunction with the mold perforated plate 5, the strip-shaped melt extruded from the perforated plate is cut into uniform recycled material particles.

[0028] Further optimization of the solution includes the following Y-axis movement components: The first linear shaft 18 is symmetrically fixed to the top of the base frame 1; Y-axis motor, the Y-axis motor is fixed on the base frame 1; The first synchronous pulley is provided in two sets. One set of the first synchronous pulleys is rotatably connected to the top of the base frame 1, and the other set of the first synchronous pulleys is fixed to the Y-axis motor. The two sets of first synchronous pulleys are connected by a first synchronous belt.

[0029] Further optimization of the solution includes the following X-axis movement components: The second linear shaft 19 has two sets arranged in parallel. The ends of the second linear shaft 19 are respectively fixed with sliding seats 20. The sliding seats 20 are slidably connected to the first linear shaft 18 and fixed to the first synchronous belt. The second synchronous pulley is provided in two sets. The two sets of second synchronous pulleys are symmetrically rotated and connected to two sets of sliding seats 20. The two sets of second synchronous pulleys are driven by the second synchronous belt. The X-axis motor is fixed on one of the sliding seats 20 and is also fixed to the second synchronous pulley; Mounting base 21 is slidably connected to the second linear shaft 19, and the mounting base 21 is fixed to the second synchronous belt. The receiving box 7 is fixed on the mounting base 21.

[0030] Further optimization of the solution includes the following extrusion components: Mounting bracket 22 is mounted on receiving box 7. The bottom of mounting bracket 22 is provided with a through groove, and the bottom of receiving box 7 is connected to the through groove. The extrusion tube is fixed to the bottom of the mounting bracket 22 and is connected to the through groove; The extrusion motor 23 is fixed on the side wall of the receiving box 7. The output shaft of the extrusion motor 23 is equipped with a planetary reducer 24. The output shaft of the planetary reducer 24 is connected to the extrusion rod 25 through the coupling 33. The extrusion rod 25 extends into the extrusion tube through the through groove. Nozzle 26 is installed at the bottom of the extrusion tube and is arranged corresponding to the heated bed 8. Heating block 28 is installed at the bottom of the extrusion tube. Heat dissipation pipe 27 is installed on the extrusion pipe and is located between the mounting bracket 22 and the heating block 28.

[0031] The extrusion motor 23 drives the extrusion rod 25 to rotate via the planetary reducer 24, pushing the recycled material particles in the receiving box 7 to the extrusion tube; the heating block 28 heats the bottom of the extrusion tube to melt the material, which is then extruded through the nozzle 26. The heat dissipation pipe 27 controls the temperature of the upper part of the extrusion tube to prevent the material from melting prematurely.

[0032] Further optimization of the scheme includes the following Z-axis movement components: Z-axis motor 29, two sets of Z-axis motor 29 are symmetrically installed at the bottom of the base frame 1; Mounting frame 30, which is fixed to the bottom of heated bed 8; A vertical optical axis 31 is symmetrically fixed on the base frame 1 in several groups, and the mounting frame 30 is slidably connected to the vertical optical axis 31. The screw 32 is provided in two sets. The two sets of screw 32 are fixed on the Z-axis motor 29 respectively, and the top end of the screw 32 is rotatably connected to the base frame 1. The screw 32 passes through the mounting frame 30 and is threadedly connected to the mounting frame 30.

[0033] Two sets of Z-axis motors synchronously drive the screw 32 to rotate. The screw 32 is threadedly connected to the mounting frame 30, causing the mounting frame 30 to move up and down along the vertical optical axis 31, which drives the heated bed 8 to rise and fall in the Z-axis direction, and adjusts the layer height in conjunction with the printing process. In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0034] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A device for efficient recycling and reuse of 3D printing waste based on an intelligent closed-loop control system, characterized in that, include: The device frame includes a base frame (1) and a top frame (2), the top frame (2) being fixed to the top of the base frame (1); The crushing mechanism includes a crushing box (3) mounted on the top frame (2), and a crushing component is installed inside the crushing box (3); The granulation mechanism includes a granulation component and a cutting component. The granulation component includes a granulation box (4) installed on a top frame (2). A propulsion component is installed inside the granulation box (4). The feed inlet of the granulation box (4) corresponds to the discharge outlet of the crushing box (3). A model perforated plate (5) and a heating unit (6) are installed at the discharge end of the granulation box (4). The cutting component is arranged correspondingly to the model perforated plate (5). The extrusion mechanism includes an X-axis moving assembly, a Y-axis moving assembly, a mounting frame (30), a receiving box (7), and an extrusion assembly. The X-axis moving assembly is arranged on the top of the base frame (1). The mounting frame (30) is mounted on the Y-axis moving assembly. The X-axis moving assembly is arranged on the mounting frame (30). The receiving box (7) is mounted on the X-axis moving assembly. The receiving box (7) is arranged corresponding to the discharge end of the granulation box (4). The extrusion assembly is installed at the bottom of the receiving box (7) for extrusion. The 3D printing mechanism includes a Z-axis moving component and a heated bed (8). The Z-axis moving component is vertically arranged on the base frame (1), and the heated bed (8) is mounted on the Z-axis moving component. The heated bed (8) is arranged correspondingly to the extrusion component.

2. The device for efficient recycling and reuse of 3D printing waste based on an intelligent closed-loop control system according to claim 1, characterized in that, The crushing component includes: Crushing motor (9), the crushing motor (9) is mounted on the top frame (2); The crushing cutter (10) has two sets of crushing cutters (10) that are symmetrically connected by a rotating axis in the crushing box (3), and the blades of the two sets of crushing cutters (10) are staggered. Gear (11), the gear (11) is provided in two sets, the ends of the two sets of rotating shafts extend through the crushing box (3) respectively, the two sets of gears (11) are fixed on the two sets of rotating shafts respectively, and the two sets of gears (11) mesh with each other; The crushing motor (9) is axially connected to one of the sets of rotating shafts.

3. The device for efficient recycling and reuse of 3D printing waste based on an intelligent closed-loop control system according to claim 1, characterized in that, The propulsion component includes: A propulsion motor (12) is fixed on the top frame (2); Screwdriver (13), which is horizontally rotatably connected inside the granulation box (4), with one end of the screwdriver (13) fixed to the output shaft of the propulsion motor (12); The granulation box (4) has a discharge hole on its side wall, a discharge pipe is installed on the discharge hole, the heating unit (6) is installed on the outer wall of the end of the discharge pipe, the model hole plate (5) is installed at the end of the discharge pipe, and a heat dissipation unit (14) is installed on the discharge pipe.

4. The 3D printing waste high-efficiency recycling and reuse device based on an intelligent closed-loop control system according to claim 1, characterized in that, The cutting assembly includes: A cutting motor (15) is fixed on the top frame (2); Mounting shaft (16) is fixed on the output shaft of the cutting motor (15). A cutting blade (17) is mounted on the outer wall of the mounting shaft (16). The cutting blade (17) is arranged correspondingly to the model hole plate (5).

5. A device for efficient recycling and reuse of 3D printing waste based on an intelligent closed-loop control system according to claim 1, characterized in that, The Y-axis movement component includes: The first linear shaft (18) is symmetrically fixed to the top of the base frame (1); Y-axis motor, the Y-axis motor is fixed on the base frame (1); The first synchronous pulley is provided in two sets. One set of the first synchronous pulleys is rotatably connected to the top of the base frame (1), and the other set of the first synchronous pulleys is fixed to the Y-axis motor. The two sets of the first synchronous pulleys are connected by a first synchronous belt.

6. The device for efficient recycling and reuse of 3D printing waste based on an intelligent closed-loop control system according to claim 5, characterized in that, The X-axis movement component includes: The second linear shaft (19) has two sets arranged in parallel. The ends of the second linear shaft (19) are respectively fixed with sliding seats (20). The sliding seats (20) are slidably connected to the first linear shaft (18) and fixed to the first synchronous belt. The second synchronous pulley is provided in two sets. The two sets of the second synchronous pulleys are symmetrically rotated and connected to the two sets of sliding seats (20). The two sets of the second synchronous pulleys are connected by a second synchronous belt. X-axis motor, the X-axis motor is fixed on one of the sliding seats (20) and fixed to the second synchronous pulley; Mounting base (21), which is slidably connected to the second linear shaft (19), and fixed to the second synchronous belt, and the receiving box (7) is fixed on the mounting base (21).

7. A device for efficient recycling and reuse of 3D printing waste based on an intelligent closed-loop control system according to claim 1, characterized in that, The extrusion assembly includes: Mounting bracket (22), which is mounted on the receiving box (7), has a through groove at the bottom, and the bottom of the receiving box (7) is connected to the through groove; The extrusion tube is fixed to the bottom of the mounting bracket (22) and communicates with the through groove; The extrusion motor (23) is fixed on the side wall of the receiving box (7). The output shaft of the extrusion motor (23) is equipped with a planetary reducer (24). The output shaft of the planetary reducer (24) is connected to an extrusion rod (25) through a coupling (33). The extrusion rod (25) passes through the through groove and extends into the extrusion tube. Nozzle (26), the nozzle (26) is installed at the bottom of the extrusion tube, the nozzle (26) is arranged corresponding to the heated bed (8), and a heating block (28) is installed at the bottom of the extrusion tube. Heat dissipation pipe (27) is installed on the extrusion pipe and located between the mounting bracket (22) and the heating block (28).

8. A device for efficient recycling and reuse of 3D printing waste based on an intelligent closed-loop control system according to claim 1, characterized in that, The Z-axis movement component includes: Z-axis motor (29), two sets of Z-axis motor (29) are symmetrically installed at the bottom of the base frame (1); A mounting frame (30) is fixed to the bottom of the heated bed (8); A vertical optical axis (31) is symmetrically fixed in several groups on the base frame (1), and the mounting frame (30) is slidably connected to the vertical optical axis (31); The screw (32) is provided in two sets. The two sets of screws (32) are respectively fixed on the Z-axis motor (29), and the top end of the screw (32) is rotatably connected to the base frame (1). The screw (32) passes through the mounting frame (30) and is threadedly connected to the mounting frame (30).

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