Waste recycling equipment for preparing high-heat-insulation polylactic acid printing material

Abstract

The invention discloses waste recycling equipment for preparation of a high-heat-insulation polylactic acid printing material, the waste recycling equipment comprises a sorting machine, a hopper is arranged at the top of one side of the sorting machine and used for feeding a material distribution mechanism in the sorting machine, and a material conveying belt assembly is arranged in the sorting machine; the material distributing mechanism controls the material falling position of the waste on the surface of the material conveying belt assembly through the dust suction mechanism. A material shaking mechanism is arranged on one side of the sorting machine and comprises a driving motor and a beating roller, the driving motor drives the beating roller to swing in a reciprocating mode below the material conveying belt assembly to beat the material conveying belt assembly, a material uniformizing mechanism is arranged on one side of the driving motor in a transmission mode, and the material uniformizing mechanism comprises a guide rod and a stirring table. According to the polylactic acid particle waste material uniform spreading device, uniform spreading of polylactic acid particle waste materials on the conveying belt can be effectively achieved, it is guaranteed that flying dust does not appear in the machine body, and meanwhile the sorting effect of the color sorter is greatly enhanced.

Description

Technical Field

[0001] The present invention relates to the technical field of waste recycling and sorting devices, and in particular to a waste recycling and reuse device for preparing strongly heat-insulating polylactic acid printing materials. Background Art

[0002] As a biodegradable thermoplastic polyester, polylactic acid has become one of the mainstream materials in the field of fused deposition modeling 3D printing due to its excellent biocompatibility, processability and environmental friendliness. However, during the preparation process of PLA printing materials, especially in the granulation stage, a certain amount of waste will inevitably be generated. These wastes not only increase the production cost, but also may have a potential impact on the environment. The preparation of PLA printing materials usually includes processes such as polymerization, extrusion granulation, drying, sorting and packaging. The waste is mainly generated in the granulation and post-treatment stages. In the granulation process, the main sources of waste are raw material residues during the melt extrusion process, process debugging waste, and debris generated during the pelletizing process. For example, during the start-up and shutdown stages of the granulator, due to unstable temperature and pressure, the size of the extruded strip-shaped PLA may be uneven or the color may be abnormal, and this part of the material is usually discarded;

[0003] And polylactic acid waste usually needs to be further sorted during the recycling process, generally divided into: direct reuse: undegraded color-different particles or agglomerated materials are crushed and dried, and then incorporated into the new material at a ratio of 5% - 10% for re-granulation;

[0004] Melt re-granulation: severely degraded waste is passed through a twin-screw extruder (equipped with a vacuum devolatilization device) to remove low-molecular substances and regenerated into low-end PLA products (such as packaging films);

[0005] Most of the sorting of waste is directly carried out by a color sorter in cooperation with an air gun, so that it falls into different collection boxes. However, in the current sorting process, since such waste is in granular form and has a small diameter, during the large-batch detection and sorting process, the workload of the color sorter is too large, and the polylactic acid particles are mostly piled up together, which will lead to poor actual sorting effect. In addition, when a large batch of waste is sorted at the same time, the debris will form an ash layer inside the machine body, affecting the actual sorting judgment of the color sorter.

[0006] Therefore, how to provide a waste recycling and reuse device for preparing strongly heat-insulating polylactic acid printing materials is an urgent problem to be solved by those skilled in the art. Summary of the Invention

[0007] An object of the present invention is to provide a waste recycling and reuse device for preparing strongly heat-insulating polylactic acid printing materials. The present invention can effectively achieve the even spreading of polylactic acid particle waste on the conveyor belt, ensure no dust is generated inside the machine body, and greatly enhance the sorting effect of the color sorter.

[0008] A waste recycling and reuse device for preparing a highly heat-insulating polylactic acid printing material according to an embodiment of the present invention includes a sorting machine. A hopper is provided at the top on one side of the sorting machine for feeding the material distribution mechanism inside the sorting machine. A material conveyor belt assembly is arranged inside the sorting machine, and the material distribution mechanism controls the falling position of the waste on the surface of the material conveyor belt assembly through a dust extraction mechanism.

[0009] A vibrating mechanism is arranged on one side of the sorting machine. The vibrating mechanism includes a driving motor and a knocking roller. The driving motor drives the knocking roller to swing reciprocally below the material conveyor belt assembly to knock on the material conveyor belt assembly. A material leveling mechanism is arranged on the transmission side of the driving motor. The material leveling mechanism includes a guide rod and a dialing table. The guide rod moves horizontally on the surface of the sorting machine through the driving motor, and is in transmission connection with the dialing table. The guide rod drives the dialing table to move horizontally reciprocally on the top surface inside the sorting machine close to the material conveyor belt assembly.

[0010] Furthermore, a transmission assembly is arranged at the output end of the driving motor. The transmission assembly includes a transmission disk and a lifting plate. The transmission disk is fixed to the output shaft of the driving motor. A transmission pin is fixed at the outer ring position on one side of the transmission disk, and the transmission pin is rotatably connected to the pin hole in the middle of the lifting plate. The bottom pin hole of the lifting plate is movably connected to a movable rod.

[0011] Furthermore, the movable rod slides in the movable groove opened on one side of a lever. The lever is rotatably arranged on a mounting frame at a position close to the movable groove. The mounting frame is fixed to the sorting machine. The end of the lever far from the movable groove is rotatably connected to the knocking roller.

[0012] Furthermore, a stress spring is arranged between the bottom of the lever and the mounting frame, and the lever is elastically connected to the mounting frame through the stress spring.

[0013] Furthermore, a swing pin is fixedly connected to the top end of the lifting plate. A swing groove is vertically opened on one side of the guide rod, and the swing pin slides in the swing groove. The bottom of the guide rod is meshed with a transmission tooth through a notch groove. A bevel gear assembly is arranged on one side of the transmission tooth, and the transmission tooth is meshed and transmitted with a bite groove through the bevel gear assembly.

[0014] Furthermore, the bite groove is opened on one side of a sliding rod. The sliding rod is fixed to the back of the dialing table and is slidably connected to the sorting machine. The top of the dialing table is slidably connected to the sorting machine through a limit slide rail. A tiger's mouth is opened on one side surface of the dialing table. One end of the dialing table far from the guide rod is elastically connected to the sorting machine through a return spring.

[0015] Furthermore, the dust extraction mechanism includes a wind pressure bin, a control motor, and two groups of wind blade shafts. The control motor is arranged in the wind pressure bin. The wind pressure bin and the control motor are both fixedly connected to the top of the sorting machine. The two groups of wind blade shafts are fixed to the top of the wind pressure bin and communicate with the inside of the wind pressure bin and the sorting machine.

[0016] Furthermore, a transmission rod is arranged between the two groups of fan blade shafts, and three groups of first bevel gear groups are arranged on the surface of the transmission rod. The two ends of the transmission rod are respectively connected to the two groups of fan blade shafts through the first bevel gear groups. The first bevel gear group in the middle position of the transmission rod is connected to the control motor, and the control motor drives the two groups of fan blade shafts to rotate on the top of the sorting machine through the transmission rod.

[0017] Furthermore, the material distribution mechanism includes a material guide plate and a material guide pipe. The material guide plate is obliquely fixed at the bottom of the material guide pipe. The material guide pipe is arranged at the bottom of the material dropping auger. The material dropping auger is arranged in the hopper. A side plate is fixed on one side of the material guide pipe. A push groove is opened on the surface of the side plate. The push groove is slidably connected to the sliding member.

[0018] Furthermore, the top of the sliding member is movably connected to one end of the push rod through an axle pin, the other end of the push rod away from the sliding member is movably connected to a pin on the surface of the turntable, and one side of the turntable is transmission-connected to the control motor through a second bevel gear set.

[0019] The beneficial effects of the present invention are:

[0020] The present invention provides a dust extraction mechanism, which controls the motor to drive the transmission rod and the first bevel gear group to link the fan blade shaft to form negative pressure suction, effectively removing dust in the sorting machine. At the same time, the second bevel gear group links the material distribution mechanism, cooperates with the swing of the material guide pipe and the material guide plate, so that the waste is distributed in an S shape on the surface of the material conveyor belt assembly to reduce accumulation. This structure realizes dust removal and material leveling simultaneously, and significantly improves the sorting accuracy and efficiency of the color sorter.

[0021] The present invention provides a material distribution mechanism, which drives the material guide tube to reciprocate under the hopper through the swing of the material guide plate and the material guide tube and the linkage of the side plate, the sliding member and the push rod, adjusts the waste material drop position, cooperates with the rotation of the turntable and the movement of the pin, so that the waste material forms an S-shaped uniform distribution track along the surface of the material conveyor belt assembly, avoids local accumulation, and improves the resolution of the color sorter for particles. Its structure cooperates with the hopper and the material conveyor belt assembly to dynamically adapt to the drop path, significantly enhances the waste dispersion effect, provides a uniform distribution basis for subsequent sorting, and improves the sorting accuracy and efficiency as a whole;

[0022] The present invention provides a material shaking mechanism, which drives the beating roller through an active motor to perform reciprocating beating and vibration on the material conveyor belt assembly, so that the waste particles are evenly scattered on the surface of the material conveyor belt assembly and embedded in the groove. At the same time, the linkage of the transmission assembly and the lever cooperates with the elastic reset of the force spring to ensure that the beating action is stable and continuous. This structure effectively prevents waste accumulation, reduces dust generation, improves the uniformity of particle distribution on the surface of the material conveyor belt assembly, provides a flat material layer for the subsequent sorting operation of the color sorter, and significantly improves the sorting accuracy and efficiency.

[0023] The present invention provides a material leveling mechanism, which drives the toggle table to push and pull reciprocatingly on the top surface of the material conveyor belt assembly through the lateral movement of the guide rod, so as to evenly push the waste particles that are not embedded in the groove into the specified position. Combined with the meshing transmission of the swing groove and the bite groove and the elastic reset of the reset spring, the pushing and pulling action is accurate and stable. This structure further eliminates particle accumulation, enhances the uniformity of the material on the surface of the material conveyor belt assembly, provides a flat and regularly distributed material layer for the color sorter to sort, and further improves the sorting accuracy and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0025] Figure 1 This is a schematic diagram of the overall structure of a waste material recycling and reuse device for preparing a strong heat-insulating polylactic acid printing material proposed by the present invention;

[0026] Figure 2 This is a half-section schematic diagram of a waste material recycling and reuse device for preparing a strong heat-insulating polylactic acid printing material proposed by the present invention.

[0027] Figure 3 This is a partial structural schematic diagram of a waste material recycling and reuse device for preparing a strong heat-insulating polylactic acid printing material proposed by the present invention.

[0028] Figure 4 This is a partial structural schematic diagram of a waste material recycling and reuse device for preparing a strong heat-insulating polylactic acid printing material proposed by the present invention.

[0029] Figure 5 This is a schematic diagram of the material shaking mechanism of a waste material recycling and reuse equipment for preparing a strong heat-insulating polylactic acid printing material proposed by the present invention.

[0030] Figure 6 This is a schematic diagram of the disassembly of the material shaking mechanism of the waste material recycling and reuse equipment for the preparation of the strong thermal insulation polylactic acid printing material proposed by the present invention.

[0031] Figure 7 This is a schematic diagram of the connection of the dust extraction mechanism of the waste recycling and reuse equipment for the preparation of the strong heat-insulating polylactic acid printing material proposed by the present invention.

[0032] In the figure: 1. Sorting machine; 2. Material conveyor belt assembly; 3. Hopper; 4. Color sorter; 5. Collection box; 6. Dust extraction mechanism; 7. Material separation mechanism; 8. Material shaking mechanism; 9. Material leveling mechanism;

[0033] 61. Wind pressure bin; 62. Control motor; 63. Fan blade shaft; 64. First bevel gear group; 65. Transmission rod; 66. Second bevel gear group; 71. Guide plate; 72. Guide pipe; 73. Blanking auger; 74. Side plate; 75. Push slot; 76. Sliding member; 77. Push rod; 78. Turntable; 79. Push pin; 81. Active motor; 82. Beating roller; 83. Transmission assembly; 84. Lever; 85. Movable slot; 86. Mounting frame; 87. Force spring; 91. Guide rod; 92. Swing slot; 93. Transmission gear; 94. Bevel gear assembly; 95. Occlusal slot; 96. Sliding rod; 97. Toggle table; 98. Tiger's mouth; 99. Reset spring;

[0034] 831, transmission plate; 832, transmission pin; 833, lifting plate; 834, movable rod; 835, swing pin. DETAILED DESCRIPTION

[0035] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0036] refer to Figures 1 - 7 , comprising a sorting machine 1, a hopper 3 is arranged on the top of one side of the sorting machine 1 for feeding materials into a material dividing mechanism 7 inside the sorting machine 1, a material conveying belt assembly 2 is arranged inside the sorting machine 1, and the material dividing mechanism 7 controls the falling position of waste materials on the surface of the material conveying belt assembly 2 through a dust extraction mechanism 6;

[0037] A material shaking mechanism 8 is arranged on one side of the sorting machine 1, and the material shaking mechanism 8 includes an active motor 81 and a beating roller 82. The active motor 81 drives the beating roller 82 to swing back and forth under the material conveying belt assembly 2 to beat the material conveying belt assembly 2. A material leveling mechanism 9 is arranged on one side of the active motor 81 for transmission. The material leveling mechanism 9 includes a guide rod 91 and a shifting table 97. The guide rod 91 is moved laterally on the surface of the sorting machine 1 by the active motor 81. The guide rod 91 is connected to the shifting table 97 for transmission. The guide rod 91 drives the shifting table 97 to move back and forth laterally near the top surface of the material conveying belt assembly 2 inside the sorting machine 1.

[0038] In the present embodiment, the hopper 3 at the top of one side of the sorting machine 1 can provide a storage space for polylactic acid particle waste, and can stably and continuously feed the inside of the dividing mechanism 7. The waste falls evenly on the surface of the material conveyor belt assembly 2 under the control of the dividing mechanism 7, and cooperates with the operation of the material conveyor belt assembly 2, so that the waste particles present an S-shaped distribution trajectory on the surface of the material conveyor belt assembly 2. In the process of the material conveyor belt assembly 2 driving the waste particles to run, the active motor 81 can drive the beating roller 82 to reciprocate and repeatedly beat the surface of the material conveyor belt assembly 2 below the material conveyor belt assembly 2, so that the waste jumps on the surface of the material conveyor belt assembly 2 and vibrates evenly, so that the waste is scattered on the surface of the material conveyor belt assembly 2 and falls into the corresponding groove of the material conveyor belt assembly 2. The material conveyor belt assembly 2 can adopt a material conveyor belt with a multi-groove structure, which is driven by the transmission rollers on the left and right sides.

[0039] After the distributed spreading of the material distribution mechanism 7 and the vibration-type material leveling of the material conveyor belt assembly 2 by the beating roller 82, the granular materials can be basically evenly dispersed on the surface of the material conveyor belt assembly 2, while some granular materials are not yet in the groove of the material conveyor belt assembly 2. At this time, the material conveyor belt assembly 2 continues to drive the materials forward until it contacts the shifting table 97, and the bottom of the shifting table 97 contacts the top surface of the material conveyor belt assembly 2. Under the transmission connection between the guide rod 91 and the guide rod 91, the guide rod 91 can make the shifting table 97 reciprocate and transversely move inside the sorting machine 1 through the transmission connection with the shifting table 97, so as to push the materials on the surface of the material conveyor belt assembly 2 into the groove on the surface of the material conveyor belt assembly 2, so as to facilitate the subsequent color sorter 4 to accurately sort and grade the granular materials in the groove of the material conveyor belt assembly 2;

[0040] Then the material conveyor belt assembly 2 drives the material to move to the bottom of the color sorter 4, where the color sorter 4 performs grading and sorting. The control data is transmitted to the air gun position under one end of the material conveyor belt assembly 2, and the air gun blows the particles to realize the sorting operation in different collection boxes 5.

[0041] refer to Figure 5 and Figure 6, a transmission component 83 is provided at the output end of the driving motor 81. The transmission component 83 includes a transmission disc 831 and a lifting plate 833. The transmission disc 831 is fixed to the output shaft of the driving motor 81. A transmission pin 832 is fixed at the outer ring position on one side of the transmission disc 831. The transmission pin 832 is rotatably connected in the pin hole in the middle position of the lifting plate 833. The bottom pin hole of the lifting plate 833 is movably connected to a movable rod 834. The movable rod 834 slides in a movable groove 85 formed on one side of a lever 84. The lever 84 is rotatably arranged on a mounting frame 86 at a position close to the movable groove 85. The mounting frame 86 is fixed to the sorting machine 1. One end of the lever 84 away from the movable groove 85 is rotatably connected to a knocking roller 82. A stress spring 87 is arranged between the bottom of the lever 84 and the mounting frame 86. The lever 84 is elastically connected to the mounting frame 86 through the stress spring 87.

[0042] In this implementation scheme, the driving motor 81 can be directly fixed to the side of the sorting machine 1, and its output shaft is directly connected to the transmission component 83. Under the drive of the driving motor 81 and the transmission effect of the transmission component 83, the transmission component 83 can drive the lever 84 to reciprocally pry. The prying effect directly drives the knocking roller 82 to knock on the bottom surface of the material conveyor belt assembly 2 at the bottom of the material conveyor belt assembly 2. The knocking effect causes the materials in an S shape on the top of the material conveyor belt assembly 2 to be evenly dispersed. Specifically:

[0043] The output shaft of the driving motor 81 is connected to the transmission disc 831. During the process of the transmission disc 831 being driven to rotate, it will drive the entire lifting plate 833 to rotate and move upward through the movable connection effect between the transmission pin 832 and the lifting plate 833. During this process, the movable rod 834 movably connected to the bottom of the lifting plate 833 can slide in the movable groove 85 on one side of the lever 84. The lever 84 is rotationally limited by the mounting frame 86. In this way, when one end of the lever 84 rises, the other end will fall, and vice versa. In this way, the other end of the lever 84 can drive the knocking roller 82 to contact the bottom of the material conveyor belt assembly 2. At the same time, a stress spring 87 is arranged between the lever 84 and the mounting frame 86 to provide an elastic reset effect for the lever 84, making the knocking and reset effect of the knocking roller 82 better.

[0044] Reference Figure 5 and Figure 6The top of the lifting plate 833 is fixedly connected to the swing pin 835. A swing slot 92 is vertically provided on one side of the guide rod 91. The swing pin 835 slides in the swing slot 92. The bottom of the guide rod 91 engages with the transmission tooth 93 through the meshing slot. A bevel gear assembly 94 is provided on one side of the transmission tooth 93. The transmission tooth 93 engages with the engagement slot 95 through the bevel gear assembly 94. The engagement slot 95 is provided on one side of the slide bar 96. The slide bar 96 is fixed on the back of the toggle table 97 and the slide bar 96 is slidably connected to the sorting machine 1. The top of the toggle table 97 is slidably connected to the sorting machine 1 through a limit slide rail. A tiger's mouth 98 is provided on one side of the toggle table 97. The end of the toggle table 97 away from the guide rod 91 is elastically connected to the sorting machine 1 through a return spring 99.

[0045] In this embodiment, when the active motor 81 drives the lifting plate 833 to swing up and down, the lifting plate 833 below will drive the beating roller 82 to reciprocate and knock the material conveyor belt assembly 2 under the action of the transmission effect, and the swing pin 835 is fixed above the lifting plate 833, and the lifting plate 833 will also drive the swing pin 835 to reciprocate within a trajectory, and the swing pin 835 slides in the swing slot 92, and the transmission tooth 93 is fixed to one side of the guide rod 91 and slides on the surface of the sorting machine 1 laterally. The swinging effect will synchronously push the guide rod 91 to slide back and forth horizontally on the surface of the sorting machine 1. At this time, the transmission gear 93 meshing under the guide rod 91 rotates, and the transmission with the bite groove 95 is realized through the connection of the bevel gear assembly 94. Specifically, the bevel gear assembly 94 is composed of two groups of bevel gears meshing with each other at 90 degrees. At the same time, the transmission gears 93 are connected to the two sides of the bevel gear assembly 94 respectively. Under the meshing of the transmission gear 93 and the bite groove 95, the guide rod 91 is moved horizontally to drive the slide bar 96 to move left and right inside the sorting machine 1.

[0046] The slide bar 96 is fixed to the toggle table 97, so that the left and right movement of the toggle table 97 causes the jaws 98 opened in front of the toggle table 97 to continuously toggle the surface of the material conveyor belt assembly 2, so that the polylactic acid particles remaining on the surface of the material conveyor belt assembly 2 are toggle-pushed into the grooves on the surface of the material conveyor belt assembly 2, thereby facilitating the subsequent detection operation of the color sorter 4.

[0047] refer to Figure 2 , Figure 4 and Figure 7, the dust extraction mechanism 6 includes a wind pressure chamber 61, a control motor 62, and two sets of wind blade shafts 63. The control motor 62 is arranged inside the wind pressure chamber 61. Both the wind pressure chamber 61 and the control motor 62 are fixedly connected to the top of the sorting machine 1. The two sets of wind blade shafts 63 are fixed to the top of the wind pressure chamber 61 and are connected to the inside of the sorting machine 1 to communicate with the wind pressure chamber 61. A transmission rod 65 is arranged between the two sets of wind blade shafts 63. Three sets of first bevel gear sets 64 are arranged on the surface of the transmission rod 65. The two ends of the transmission rod 65 are respectively drivingly connected to the two sets of wind blade shafts 63 through the first bevel gear sets 64. The first bevel gear set 64 at the middle position of the transmission rod 65 is drivingly connected to the control motor 62. The control motor 62 drives the two sets of wind blade shafts 63 to rotate on the top of the sorting machine 1 through the transmission rod 65.

[0048] In this implementation scheme, the control motor 62 is arranged inside the wind pressure chamber 61, and the wind pressure chamber 61 is fixed on the surface of the sorting machine 1. After the control motor 62 is started, the output shaft on one side thereof will drive the transmission rod 65 itself to rotate through the first bevel gear set 64 arranged at the middle position of the transmission rod 65. The two ends of the transmission rod 65 are respectively drivingly connected to the wind blade shafts 63 through the first bevel gear sets 64. In this way, the two sets of wind blade shafts 63 rotate on the top of the sorting machine 1, sucking the air inside the sorting machine 1 into the wind pressure chamber 61. In this way, only an air outlet pipe needs to be externally connected to the surface of the wind pressure chamber 61 to realize the suction of dust, preventing dust from forming an ash layer inside the sorting machine 1 and affecting the detection operation of the color sorter 4. The first bevel gear set 64 is composed of two bevel gears that mesh with each other at a right angle.

[0049] Reference Figure 7 , the material distribution mechanism 7 includes a guide plate 71 and a guide pipe 72. The guide plate 71 is obliquely fixed to the bottom of the guide pipe 72. The guide pipe 72 is arranged at the bottom of the feeding auger 73. The feeding auger 73 is arranged in the hopper 3. One side of the guide pipe 72 is fixed with a side plate 74. A push groove 75 is opened on the surface of the side plate 74. A sliding member 76 is slidably connected in the push groove 75. The top end of the sliding member 76 is movably connected to one end of a push rod 77 through a pin. The other end of the push rod 77 away from the sliding member 76 is movably connected to a pin 79 on the surface of a turntable 78. One side of the turntable 78 is drivingly connected to the control motor 62 through a second bevel gear set 66.

[0050] In this embodiment, the control motor 62 drives the two sets of fan blade shafts 63 to rotate synchronously to suck the dust inside the sorting machine 1, and the output shaft at the other end directly drives the second bevel gear set 66 to operate. The second bevel gear set 66 is also composed of two sets of bevel gears meshing at right angles to each other. The bevel gear on one side of the second bevel gear set 66 will drive the turntable 78 to rotate, and the pin 79 on the surface of the turntable 78 is forced to rotate synchronously, driving the push rod 77 to push to one side. The other end of the push rod 77 is connected to the sliding member 76, and the lower part of the sliding member 76 is connected to the push groove 75 on the surface of the side plate 74 through the sliding pin. Sliding connection, under the action of pushing and sliding, the side plate 74 is subjected to force to drive the guide pipe 72 to swing back and forth below the hopper 3, and the guide plate 71 connected below the guide pipe 72 moves synchronously to change the discharge position of the port of the guide plate 71. Under the operation of the blanking auger 73, the polylactic acid particles fall into the guide pipe 72 and are guided by the guide plate 71 to fall on the surface of the material conveyor belt assembly 2. In conjunction with the operation of the material conveyor belt assembly 2, the polylactic acid particles present an S-shaped distribution posture on the surface of the material conveyor belt assembly 2, effectively dispersing the convergence position of the polylactic acid.

[0051] Working principle: after the waste enters the sorting machine 1 through the hopper 3, the material dropping auger 73 in the hopper 3 rotates to guide the waste into the guide pipe 72. The guide plate 71 is fixed obliquely at the bottom of the guide pipe 72. The swing of the guide pipe 72 is driven by the turntable 78. Specifically, after the control motor 62 is started, the output shaft on one side thereof is transmitted to the turntable 78 through the second bevel gear set 66. The push pin 79 on the surface of the turntable 78 moves the push rod 77. The push rod 77 drives the sliding member 76 to slide in the push groove 75 of the side plate 74. Since the side plate 74 is fixed to the guide pipe 72, the side plate 74 is forced to push the guide pipe 72 to swing. Here, the guide pipe 72 and the sorting machine 1 are limited and rotated, so that the waste falls from the guide plate 71 to the surface of the material conveyor belt assembly 2, and cooperates with The operation effect of the material conveyor belt assembly 2 causes the waste particles to form an S-shaped distribution on the surface of the material conveyor belt assembly 2. When the material conveyor belt assembly 2 drives the material to run, the active motor 81 of the material shaking mechanism 8 is started, and its output shaft fixes the transmission disk 831. The transmission pin 832 of the transmission disk 831 pushes the lifting plate 833 to swing, and the movable rod 834 at the bottom end of the lifting plate 833 slides in the movable groove 85 of the lever 84, driving the lever 84 to rotate around the mounting frame 86. The knocking roller 82 at the other end of the lever 84 knocks back and forth on the bottom surface of the material conveyor belt assembly 2, and cooperates with the elastic reset of the force spring 87 to vibrate the waste so that it is embedded in the groove of the material conveyor belt assembly 2 and is more evenly dispersed on the surface of the material conveyor belt assembly 2.

[0052] The output shaft on the other side of the control motor 62 meshes with the middle section of the transmission rod 65 through the first bevel gear set 64, driving the transmission rod 65 to rotate. The first bevel gear sets 64 at both ends of the transmission rod 65 link the two sets of fan blade shafts 63 to rotate, forming a negative pressure in the air pressure bin 61 to suck the dust in the sorting machine 1. At the same time, the control motor 62 drives the turntable 78 through the second bevel gear set 66 to synchronously control the swing of the material guide pipe 72. When the lifting plate 833 of the material shaking mechanism 8 swings, the swing pin 835 above it slides and fits into the swing groove of the material leveling mechanism 9. 92, the swing slot 92 and the guide rod 91 slide with the sorting machine 1 in a transverse limited position, driving the guide rod 91 to move transversely, the meshing groove at the bottom of the guide rod 91 drives the transmission tooth 93 to rotate, and the transmission tooth 93 is transmitted through the bevel gear assembly 94 and the bite groove 95, driving the slide bar 96 to slide inside the sorting machine 1, the slide bar 96 is fixed to the toggle table 97, driving the toggle table 97 to move on the top surface of the material conveyor belt assembly 2, and using the tiger's mouth 98 to push the waste that is not embedded in the groove, and the reset spring 99 provides reset to ensure the continuous movement of the toggle table 97.

[0053] After being graded, the waste material runs along the material conveyor belt assembly 2 to the bottom of the color sorter 4. After color sorting and analysis by the color sorter 4, the particles are blown into the corresponding collection box 5 through the air gun at the bottom of one end of the material conveyor belt assembly 2. The transmission speed of the material conveyor belt assembly 2, the vibration frequency of the beating roller 82 and the pushing rhythm of the toggle table 97 are coordinated to ensure that the material is evenly distributed before sorting.

[0054] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A waste recycling and reuse device for preparing a strong heat-insulating polylactic acid printing material, including a sorting machine (1), characterized in that, On the top of one side of the sorting machine (1), a hopper (3) is provided for feeding the material distribution mechanism (7) inside the sorting machine (1). Inside the sorting machine (1), a material conveyor belt assembly (2) is provided. The material distribution mechanism (7) controls the falling position of the waste on the surface of the material conveyor belt assembly (2) through a dust extraction mechanism (6). A color sorter (4) is fixed on the top of the sorting machine (1), and a collection box (5) is provided at the bottom of one side of the sorting machine (1). On one side of the sorting machine (1), a vibrating mechanism (8) is provided. The vibrating mechanism (8) includes a driving motor (81) and a knocking roller (82). The driving motor (81) drives the knocking roller (82) to swing reciprocally below the material conveyor belt assembly (2) to knock the material conveyor belt assembly (2). On one side of the driving motor (81), a material leveling mechanism (9) is arranged. The material leveling mechanism (9) includes a guide rod (91) and a dialing table (97). The guide rod (91) moves horizontally on the surface of the sorting machine (1) through the driving motor (81). There is a transmission connection between the guide rod (91) and the dialing table (97). The guide rod (91) drives the dialing table (97) to move reciprocally horizontally on the top surface inside the sorting machine (1) close to the material conveyor belt assembly (2).

2. The waste recycling and reuse equipment for preparing a highly heat-insulating polylactic acid printing material according to claim 1, characterized in that, At the output end of the driving motor (81), a transmission assembly (83) is provided. The transmission assembly (83) includes a transmission disc (831) and a lifting plate (833). The transmission disc (831) is fixed to the output shaft of the driving motor (81). A transmission pin (832) is fixed at the outer ring position on one side of the transmission disc (831). The transmission pin (832) is rotatably connected in the pin hole in the middle position of the lifting plate (833). The bottom end pin hole of the lifting plate (833) is movably connected to a movable rod (834).

3. The waste recycling and reuse equipment for preparing a highly heat-insulating polylactic acid printing material according to claim 2, characterized in that, The movable rod (834) slides in a movable groove (85) opened on one side of a lever (84). The lever (84) is rotatably arranged on a mounting bracket (86) at a position close to the movable groove (85). The mounting bracket (86) is fixed to the sorting machine (1). The end of the lever (84) far from the movable groove (85) is rotatably connected to the knocking roller (82).

4. The waste recycling and reuse equipment for preparing a strong heat-insulating polylactic acid printing material according to claim 3, characterized in that, Between the bottom of the lever (84) and the mounting bracket (86), a stress spring (87) is provided. The lever (84) is elastically connected to the mounting bracket (86) through the stress spring (87).

5. The waste recycling and reuse equipment for preparing a highly heat-insulating polylactic acid printing material according to claim 2, characterized in that, At the top end of the lifting plate (833), a swing pin (835) is fixedly connected. On one side of the guide rod (91), a swing groove (92) is vertically opened. The swing pin (835) slides in the swing groove (92). At the bottom of the guide rod (91), a ratchet groove engages a transmission tooth (93). On one side of the transmission tooth (93), a bevel gear assembly (94) is provided. The transmission tooth (93) is engaged and transmitted with a bite groove (95) through the bevel gear assembly (94).

6. The waste recycling and reuse equipment for preparing a strong heat-insulating polylactic acid printing material according to claim 5, characterized in that, The bite groove (95) is opened on one side of a sliding rod (96). The sliding rod (96) is fixed to the back of the dialing table (97) and is slidably connected to the sorting machine (1). The top of the dialing table (97) is slidably connected to the sorting machine (1) through a limit slide rail. On one side surface of the dialing table (97), a tiger mouth (98) is opened. One end of the dialing table (97) far from the guide rod (91) is elastically connected to the sorting machine (1) through a return spring (99).

7. The waste recycling and reuse equipment for preparing a highly heat-insulating polylactic acid printing material according to claim 1, characterized in that, The dust extraction mechanism (6) includes a wind pressure chamber (61), a control motor (62), and two groups of wind blade shafts (63). The control motor (62) is arranged inside the wind pressure chamber (61). Both the wind pressure chamber (61) and the control motor (62) are fixedly connected to the top of the sorting machine (1). The two groups of wind blade shafts (63) are fixed to the top of the wind pressure chamber (61) and communicate with the inside of the wind pressure chamber (61) and the sorting machine (1).

8. The waste recycling and reuse equipment for preparing a highly heat-insulating polylactic acid printing material according to claim 7, characterized in that, A transmission rod (65) is arranged between the two groups of wind blade shafts (63). Three groups of first bevel gear sets (64) are arranged on the surface of the transmission rod (65). Both ends of the transmission rod (65) are respectively drivingly connected to the two groups of wind blade shafts (63) through the first bevel gear sets (64). The first bevel gear set (64) at the middle position of the transmission rod (65) is drivingly connected to the control motor (62). The control motor (62) drives the two groups of wind blade shafts (63) to rotate on the top of the sorting machine (1) through the transmission rod (65).

9. The waste recycling and reuse equipment for preparing a strong heat-insulating polylactic acid printing material according to claim 1, characterized in that, The material distribution mechanism (7) includes a guide plate (71) and a guide pipe (72). The guide plate (71) is obliquely fixed to the bottom of the guide pipe (72). The guide pipe (72) is arranged at the bottom of the blanking auger (73). The blanking auger (73) is arranged in the hopper (3). One side of the guide pipe (72) is fixedly connected with a side plate (74). A push groove (75) is formed on the surface of the side plate (74). A sliding member (76) is slidably connected in the push groove (75).

10. A waste recycling and reuse device for preparing a highly heat-insulating polylactic acid printing material according to claim 9, characterized in that, The top end of the sliding member (76) is movably connected to one end of a push rod (77) through a pin. The other end of the push rod (77) away from the sliding member (76) is movably connected to a dial pin (79) on the surface of a turntable (78). One side of the turntable (78) is drivingly connected to the control motor (62) through a second bevel gear set (66).

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