Preparation device of graphene plastic material

Abstract

The invention relates to the technical field of plastic preparation devices, in particular to a graphene plastic material preparation device which comprises a base, an extruder and a mounting plate, the extruder and the mounting plate are fixedly arranged on the base, a U-shaped mounting frame is fixedly arranged on one side of the base, and a rotary driving motor is fixedly arranged on the U-shaped mounting frame; when the linkage module drives the graphene quantitative discharging module and the plastic particle quantitative discharging module to conduct quantitative discharging, the linkage module can drive the graphene blowing and scattering module in a linkage mode, and the graphene blowing and scattering module can blow and scatter graphene powder fed by the graphene quantitative discharging module into the premixing device. The graphene powder enters the pre-mixing device in a blowing manner, is not locally accumulated and can be more uniformly mixed with the plastic particles fed into the pre-mixing device, the raw materials flow into the extruder after being mixed to prepare the modified plastic particles, and the graphene powder is not agglomerated in a resin matrix, so that the preparation process is simple, and the preparation efficiency is high. The overall performance of the modified plastic can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of plastic preparation devices, and in particular to a preparation device for graphene plastic materials. Background Art

[0002] Modified plastics are intermediate products in the petrochemical industry chain. They refer to plastic products that, based on general plastics and engineering plastics, are processed by methods such as filling, blending, and reinforcement to improve their properties in terms of flame retardancy, impact resistance, toughness, etc.; graphene, as a modifier with excellent properties, can improve the electrical conductivity, thermal conductivity, mechanical properties, and barrier properties of plastics; currently, there are three methods for adding graphene to plastics: melt blending method, solution mixing method, and in-situ polymerization method. Among them, the melt blending method is the most economical method for preparing graphene-modified plastics and is also the most suitable method for industrialization; when the existing preparation device for graphene plastic materials produces graphene-modified plastic particles, after feeding and mixing and melting through the feeding port, it is cooled by a water ring cutting die and extruded into shape and then cut into particles.

[0003] In the actual production process, workers need to weigh and measure graphene and plastic raw materials respectively according to the mixing ratio of graphene and plastic raw materials. After weighing and measuring, they are added to the extruder through the feeding port for mixing and melting, and finally cut into particles after being cooled by a water ring cutting die and extruded into shape. This process is time-consuming and laborious, and the plastic material generally falls into the extruder naturally by its own gravity in the material tank. Due to the large viscosity and poor fluidity of the plastic material, the material supply in the extruder is uneven, affecting the normal preparation of plastics. Summary of the Invention

[0004] The purpose of the present invention is to solve the drawbacks existing in the prior art and to propose a preparation device for graphene plastic materials.

[0005] To achieve the above object, the technical solution adopted by the present invention is as follows: A preparation device for graphene plastic materials, comprising a base, an extruder fixedly arranged on the base, and a mounting plate member. A U-shaped mounting frame is fixedly arranged on one side of the base. A rotary drive motor is fixedly arranged on the U-shaped mounting frame. The end of the output shaft of the rotary drive motor is connected to the extruder through a transmission shaft rod. A linkage module is fixedly connected to the outer side of the transmission shaft rod connected between the rotary drive motor and the extruder. The end of the linkage module is connected to a graphene quantitative feeding module. One side of the graphene quantitative feeding module is connected to a plastic particle quantitative feeding module through a shaft rod. When the rotary drive motor drives the extruder to rotate to produce graphene-modified plastic particles, the linkage module can drive the graphene quantitative feeding module and the plastic particle quantitative feeding module to rotate and feed synchronously, and can automatically and quantitatively complete the feeding according to the mixing ratio between graphene and plastic particles. Moreover, the rotation speeds of the graphene quantitative feeding module and the plastic particle quantitative feeding module change with the change of the rotation speed of the extruder. When the rotation speed of the extruder becomes faster, the feeding amounts of the graphene quantitative feeding module and the plastic particle quantitative feeding module will increase synchronously. The bottom end of the plastic particle quantitative feeding module is connected through and communicated with a pre-mixing device. A mixing module is arranged inside the pre-mixing device. One end of the mixing module penetrates through the pre-mixing device and is connected to a vibration anti-blocking module. The bottom of the graphene quantitative feeding module is fixedly provided with a feeding pipe fitting. The bottom end of the feeding pipe fitting is connected through and communicated with a graphene spraying module. And the graphene spraying module is fixedly inserted and arranged on the mounting plate member. When the linkage module drives the graphene quantitative feeding module and the plastic particle quantitative feeding module to carry out quantitative feeding, the graphene spraying module can be driven in linkage. The graphene spraying module can spray the graphene powder fed by the graphene quantitative feeding module into the pre-mixing device. The graphene powder enters the pre-mixing device by spraying, and will not accumulate locally, and can be more evenly mixed with the plastic particles fed into the pre-mixing device by the plastic particle quantitative feeding module. After the raw materials are mixed, they flow into the extruder for the preparation of modified plastic particles. The graphene powder will not form agglomerates in the resin matrix, and the overall performance of the modified plastic can be improved; The pre-mixing device includes a box body and a zigzag feeding pipe fitting with a heating function arranged at the bottom of the box body. A pressure relief module is inserted and arranged on the outer side of the box body. After the graphene powder and the plastic particles are preliminarily mixed in the box body, they flow into the extruder through the zigzag feeding pipe fitting for feeding. During feeding, the plastic particles can be heated and melted through the zigzag feeding pipe fitting, which is convenient for subsequent extrusion molding. Moreover, during the process of the graphene spraying module spraying the graphene powder into the pre-mixing device, the air pressure in the pre-mixing device will continue to rise. When the air pressure rises to a certain level, the pressure relief module will open for exhaust, so that a certain intensity of air pressure can be maintained in the pre-mixing device all the time. The air pressure can be used to extrude the materials heated and melted in the zigzag feeding pipe fitting, so that the materials can enter the extruder evenly all the time, realizing stable feeding.

[0006] Preferably, the linkage module includes a driving pulley and a rotating rod rotatably arranged on a mounting plate through a bearing, the rotating rod is fixedly connected to a driven pulley at one end away from the graphene quantitative unloading module, a transmission belt is connected between the driven pulley and the driving pulley, and the rotating drive motor drives the extruder to rotate to produce graphene-modified plastic particles. The rotating rod can be driven to rotate by the driving pulley, the transmission belt and the driven pulley, and the rotating rod can drive the graphene quantitative unloading module and the plastic particle quantitative unloading module to rotate synchronously for unloading, and the unloading can be automatically and quantitatively completed according to the mixing ratio between the graphene and the plastic particles; A transmission gear is provided on the fixed sleeve outside the rotating rod, and the transmission gear is connected to the graphene blowing module. When the rotating rod drives the graphene quantitative feeding module and the plastic particle quantitative feeding module to rotate synchronously for feeding, the transmission gear can be used to drive the graphene blowing module. The graphene blowing module can blow the graphene powder delivered by the graphene quantitative feeding module into the pre-mixing device. The graphene powder enters the pre-mixing device in a blowing manner, and will not be locally accumulated. It can be more evenly mixed with the plastic particles delivered into the pre-mixing device by the plastic particle quantitative feeding module.

[0007] Preferably, the graphene quantitative unloading module includes a graphene unloading barrel and a graphene storage hopper fixedly arranged on the top of the graphene unloading barrel, a graphene unloading roller is rotatably provided in the inner cavity of the graphene unloading barrel, and the graphene unloading roller is fixedly connected to the rotating rod, and graphene unloading troughs are equidistantly provided on the outside of the graphene unloading roller. When the linkage module rotates driven by the rotary drive motor, the rotating rod on the linkage module can drive the graphene unloading roller in the graphene quantitative unloading module to rotate, and the graphene unloading can be precisely controlled when the graphene unloading roller rotates.

[0008] Preferably, the plastic pellet quantitative feeding module includes a plastic pellet feeding cylinder and a plastic pellet storage hopper fixedly arranged on the top of the plastic pellet feeding cylinder. A plastic pellet feeding roller is rotatably provided in the inner cavity of the plastic pellet feeding cylinder. Plastic pellet feeding troughs are equidistantly provided on the outer side of the plastic pellet feeding roller. The rotating rod on the linkage module can drive the plastic pellet feeding roller in the plastic pellet quantitative feeding module to rotate. When the plastic pellet feeding roller rotates, the plastic pellet feeding can be accurately controlled. The plastic particle feeding roller is connected to the graphene feeding roller through a shaft rod, and the feeding ratio between the graphene feeding roller and the plastic particle feeding roller is the same as the mixing ratio between graphene and plastic particles. When the rotary drive motor drives the extruder to rotate to produce graphene-modified plastic particles, the linkage module can drive the graphene quantitative feeding module and the plastic particle quantitative feeding module to rotate and feed synchronously, and the feeding can be automatically quantified according to the mixing ratio between graphene and plastic particles, without the need for workers to weigh and measure graphene and plastic raw materials.

[0009] Preferably, the pressure relief module includes an exhaust cylinder body and a filter assembly arranged at one end of the exhaust cylinder body for intercepting graphene powder. The outer side of the exhaust cylinder body is equidistantly provided with exhaust ports. One end of the exhaust cylinder body far away from the filter assembly is penetrated by a T-shaped pin rod. A piston assembly is arranged at one end of the T-shaped pin rod penetrating into the exhaust cylinder body. A spring member is sleeved on the outer side of one end of the T-shaped pin rod. The graphene powder can be filtered and intercepted by the filter assembly, and the graphene powder can be prevented from being discharged together with the gas. During the process of the graphene spraying module spraying the graphene powder into the premixing device, the air pressure in the premixing device will continuously increase. When the air pressure increases to a certain extent and is greater than the elastic force of the spring member, the spring member will be stretched, and the piston assembly on the pressure relief module will move to be misaligned with the exhaust port for exhausting gas, so that a certain intensity of air pressure can be maintained in the premixing device all the time. The air pressure can be used to extrude the heated and melted material in the serrated feeding pipe fitting, so that the material can continuously and evenly enter the extruder.

[0010] Preferably, the mixing module includes a motor assembly fixedly installed on the outer side of the box body. The end of the output shaft of the motor assembly is fixedly connected with a mixing shaft rod. Mixing blades are fixedly arranged at equal intervals on the outer side of the mixing shaft rod. The motor assembly drives the mixing blades to rotate through the mixing shaft rod to perform secondary stirring and mixing on the graphene powder and plastic particles; A scraping assembly is fixedly sleeved on the outer side of the mixing shaft rod, and the scraping assembly is attached to the inner surface of the filter assembly. While stirring and mixing, the mixing shaft rod can drive the scraping assembly in a linkage manner, and the scraping assembly can clean the dust on the surface of the filter assembly, which is beneficial to the discharge of gas.

[0011] Preferably, the vibration anti-blocking module includes a cylindrical rod fixedly arranged at one end of the mixing shaft, a connecting piece and a toggle piece sleeved on the outside of the cylindrical rod, a toggle column and a driving connecting rod are fixedly provided on the surface of the connecting piece, one end of the driving connecting rod is rotatably connected to a driving arm, the bottom end of the driving arm is connected to a sliding rod through a hinge shaft, a guide sliding sleeve is provided on the sliding outer side of the sliding rod, and the guide sliding sleeve is fixedly arranged on the outside of the pre-mixing device, a hammer head is fixed at the bottom end of the sliding rod, the top of the hammer head is located on the outside of the sliding rod and is sleeved with a spring return piece, a vibration table is provided under the hammer head, and the vibration table is fixedly installed outside the pre-mixing device On the other hand, the mixing module can drive the cylindrical rod on the vibration anti-blocking module to rotate while performing secondary mixing of the graphene powder and the plastic particles. When the cylindrical rod rotates, the connecting part can be toggled to rotate by the toggle part. The toggle column on the connecting part moves from the bottom to the top following the connecting part under the toggle of the toggle part. In the process, the connecting part pulls the sliding rod and the hammer head upward through the driving arm. When the toggle column moves to the top following the connecting part, the sliding rod and the hammer head are quickly reset under the action of the spring return part. The hammer head hits the vibration table downward, which can make the pre-mixing device vibrate, and can effectively prevent the plastic raw materials from being blocked and affecting the normal feeding. The connecting member is rotatably connected to the cylindrical rod via a bearing, and the toggle member is fixedly connected to the cylindrical rod.

[0012] Preferably, the toggle member comprises an annular sleeve fixedly sleeved on the outside of the cylindrical rod, two groups of toggle protrusions are symmetrically fixedly provided on the outside of the annular sleeve, and the ends of the toggle protrusions are configured as arc structures.

[0013] Preferably, the graphene blowing module includes a blowing pipe fitting fixedly arranged on the outside of the premixing device, the blowing pipe fitting is fixedly provided with a blowing booster cylinder at one end, the blowing booster cylinder inner cavity is provided with an impeller driving rod for rotation, a fan impeller is fixedly sleeved on the outer side of the impeller driving rod, the impeller driving rod passes through one end of the blowing booster cylinder and is fixed with a driven gear, and the driven gear is transmission-connected with the transmission gear, and the blowing booster cylinder is provided with an air inlet at one end near the fan impeller. When the linkage module drives the graphene quantitative feeding module and the plastic particle quantitative feeding module to perform quantitative feeding, the transmission gear can drive the driven gear to rotate, and the driven gear can drive the fan impeller to rotate at a high speed through the impeller driving rod to blow the graphene powder put by the graphene quantitative feeding module into the premixing device. The graphene powder enters the premixing device in a blowing manner and will not be locally accumulated, so it can be more evenly mixed with the plastic particles put into the premixing device by the plastic particle quantitative feeding module.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. When the rotary drive motor drives the extruder to rotate to produce graphene-modified plastic particles, the linkage module can drive the graphene feeding roller in the graphene quantitative feeding module and the plastic particle feeding roller in the plastic particle quantitative feeding module to rotate synchronously, and can automatically and quantitatively complete the feeding according to the mixing ratio between graphene and plastic particles, without the need for workers to weigh and measure graphene and plastic raw materials.

[0015] 2. The rotation speeds of the graphene feeding roller and the plastic particle feeding roller change with the change of the rotation speed of the extrusion propeller in the extruder. When the rotation speed of the extrusion propeller in the extruder becomes faster, the rotation speeds of the graphene feeding roller and the plastic particle feeding roller become faster together. The feeding amounts of graphene and plastic particles can be automatically controlled according to the preparation speed of the extruder, which can avoid the situation that the feeding amount is too large and the materials accumulate and block in the feeding pipeline, or the feeding amount is too small to meet the normal preparation requirements.

[0016] 3. When the linkage module drives the graphene quantitative feeding module and the plastic particle quantitative feeding module to carry out quantitative feeding, it can drive the graphene spraying module in a linkage manner. The graphene spraying module can spray the graphene powder put by the graphene quantitative feeding module into the premixing device. The graphene powder enters the premixing device by spraying, and will not accumulate locally, and can be more evenly mixed with the plastic particles put by the plastic particle quantitative feeding module into the premixing device. After the raw materials are mixed, they flow into the extruder for the preparation of modified plastic particles. The graphene powder will not form agglomerates in the resin matrix, which can improve the overall performance of the modified plastic.

[0017] 4. After the graphene powder and plastic particles are initially mixed in the box, they flow into the extruder through the zigzag feeding pipe for feeding. During feeding, the plastic particles can be heated and melted through the zigzag feeding pipe, which is convenient for subsequent extrusion molding. Moreover, during the process of the graphene spraying module spraying the graphene powder into the premixing device, the air pressure in the premixing device will continue to rise. When the air pressure rises to a certain level, the pressure relief module will open for exhaust, so that a certain intensity of air pressure can be maintained in the premixing device all the time. The air pressure can be used to extrude the heated and melted materials in the zigzag feeding pipe, so that the materials can continuously and evenly enter the extruder to achieve stable feeding. Description of the Drawings

[0018] Figure 1 is the overall structural schematic diagram of the present invention; Figure 2 is the rear view structural diagram of the present invention; Figure 3 is the sectional structural schematic diagram of the plastic particle quantitative feeding module of the present invention; Figure 4 of the present invention Figure 3A schematic diagram of the structure enlargement at point A; Figure 5 It is a cross-sectional structural diagram of the pre-mixing device of the present invention; Figure 6 For the present invention Figure 5 A magnified schematic diagram of the structure at point B in FIG; Figure 7 This is a cross-sectional structural diagram of the graphene blowing module of the present invention; Figure 8 This is a cross-sectional structural diagram of the graphene quantitative blanking module of the present invention.

[0019] Figure: 1. Base; 2. Extruder; 3. Mounting plate; 4. U-shaped mounting bracket; 5. Rotary drive motor; 6. Linkage module; 7. Graphene quantitative feeding module; 8. Plastic pellet quantitative feeding module; 9. Pre-mixing device; 10. Mixing module; 11. Vibration anti-blocking module; 12. Feeding pipe; 13. Graphene blowing module. 601, driving pulley; 602, rotating rod; 603, driven pulley; 604, transmission belt; 605, transmission gear; 701, graphene feeding barrel; 702, graphene storage hopper; 703, graphene feeding roller; 704, graphene feeding trough; 801, plastic pellet discharging barrel; 802, plastic pellet storage hopper; 803, plastic pellet discharging roller; 804, plastic pellet discharging trough; 901, box body; 902, serrated feeding pipe; 903, exhaust cylinder; 904, filter assembly; 905, exhaust port; 906, T-shaped pin; 907, piston assembly; 908, spring; 1001, motor assembly; 1002, mixing shaft; 1003, mixing blade; 1004, scraping assembly; 1101, cylindrical rod; 1102, connecting member; 1103, toggle member; 1104, toggle column; 1105, driving connecting rod; 1106, driving arm; 1107, sliding rod; 1108, guide sleeve; 1109, hammer head; 1110, spring return member; 1111, vibration table; 1301. Blowing pipe; 1302. Blowing booster cylinder; 1303. Impeller driving rod; 1304. Fan impeller; 1305. Driven gear. DETAILED DESCRIPTION

[0020] The following description is intended to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are merely examples, and those skilled in the art may conceive of other obvious variations.

[0021] like Figures 1 to 8A preparation device for a graphene plastic material is shown, including a base 1, an extruder 2 fixedly arranged on the base 1, and a mounting plate member 3. A U-shaped mounting frame 4 is fixedly arranged on one side of the base 1. A rotary drive motor 5 is fixedly arranged on the U-shaped mounting frame 4. The end of the output shaft of the rotary drive motor 5 is connected to the extruder 2 through a transmission shaft rod. A linkage module 6 is fixedly connected to the outer side of the transmission shaft rod connected between the rotary drive motor 5 and the extruder 2. The end of the linkage module 6 is connected to a graphene metering feeding module 7. One side of the graphene metering feeding module 7 is connected to a plastic particle metering feeding module 8 through a shaft rod. When the rotary drive motor 5 drives the extruder 2 to rotate to produce graphene-modified plastic particles, the linkage module 6 can drive the graphene metering feeding module 7 and the plastic particle metering feeding module 8 to rotate and feed materials synchronously, and the feeding can be automatically metered according to the mixing ratio between graphene and plastic particles. Moreover, the rotation speeds of the graphene metering feeding module 7 and the plastic particle metering feeding module 8 change with the change of the rotation speed of the extruder 2. When the rotation speed of the extruder 2 becomes faster, the feeding amounts of the graphene metering feeding module 7 and the plastic particle metering feeding module 8 will increase synchronously. The bottom end of the plastic particle metering feeding module 8 is connected to a premixing device 9 in a through manner. A mixing module 10 is arranged inside the premixing device 9. One end of the mixing module 10 penetrates through the premixing device 9 and is connected to a vibration anti-blocking module 11. The graphene powder and plastic particles can be secondarily stirred and mixed through the mixing module 10. While stirring and mixing, the vibration anti-blocking module 11 can be driven in a linkage manner. The vibration anti-blocking module 11 can drive the premixing device 9 to vibrate, which can effectively prevent the plastic raw materials from being blocked and affecting normal feeding. A feeding pipe fitting 12 is fixedly arranged at the bottom of the graphene metering feeding module 7. The bottom end of the feeding pipe fitting 12 is connected to a graphene spraying module 13 in a through manner. The graphene spraying module 13 is fixedly inserted into the mounting plate member 3. When the linkage module 6 drives the graphene metering feeding module 7 and the plastic particle metering feeding module 8 to perform metering feeding, the graphene spraying module 13 can be driven in a linkage manner. The graphene spraying module 13 can spray the graphene powder fed by the graphene metering feeding module 7 into the premixing device 9. The graphene powder enters the premixing device 9 by spraying, and will not accumulate locally, and can be more evenly mixed with the plastic particles fed into the premixing device 9 by the plastic particle metering feeding module 8. After the raw materials are mixed, they flow into the extruder 2 for the preparation of modified plastic particles; compared with the way of directly pouring all at once for mixing, the sprayed graphene powder will not form agglomerates in the resin matrix, which can improve the overall performance of the modified plastic; The premixing device 9 includes a box body 901 and a serrated blanking pipe fitting 902 with a heating function arranged at the bottom of the box body 901. A pressure relief module is inserted through the outside of the box body 901. After the graphene powder and the plastic particles are preliminarily mixed in the box body 901, they flow into the extruder 2 through the serrated blanking pipe fitting 902 for feeding. While feeding, the plastic particles can be heated and melted through the serrated blanking pipe fitting 902, which is convenient for subsequent extrusion molding. Moreover, when the graphene spraying module 13 sprays the graphene powder into the premixing device 9, the air pressure in the premixing device 9 will continuously increase. When the air pressure rises to a certain level, the pressure relief module will open for exhaust, so that a certain intensity of air pressure can be maintained in the premixing device 9 all the time. The air pressure can be used to extrude the heated and melted material in the serrated blanking pipe fitting 902, so that the material can enter the extruder 2 evenly all the time.

[0022] As a further embodiment of the present invention, the linkage module 6 includes a driving pulley 601 and a rotating rod 602 rotatably arranged on the mounting plate 3 through a bearing. One end of the rotating rod 602 far away from the graphene quantitative blanking module 7 is fixedly connected with a driven pulley 603. A transmission belt 604 is connected between the driven pulley 603 and the driving pulley 601. When the rotating drive motor 5 drives the extruder 2 to rotate to produce graphene modified plastic particles, the rotating rod 602 can be driven to rotate through the driving pulley 601, the transmission belt 604 and the driven pulley 603. The rotating rod 602 can drive the graphene quantitative blanking module 7 and the plastic particle quantitative blanking module 8 to rotate synchronously for blanking, and the blanking can be automatically completed quantitatively according to the mixing ratio between graphene and plastic particles; A transmission gear 605 is fixedly sleeved on the outside of the rotating rod 602, and the transmission gear 605 is in transmission connection with the graphene spraying module 13. When the rotating rod 602 drives the graphene quantitative blanking module 7 and the plastic particle quantitative blanking module 8 to rotate synchronously for blanking, the graphene spraying module 13 can be driven through the transmission gear 605. The graphene spraying module 13 can spray the graphene powder put by the graphene quantitative blanking module 7 into the premixing device 9. The graphene powder enters the premixing device 9 by spraying, and will not accumulate locally, and can be more evenly mixed with the plastic particles put into the premixing device 9 by the plastic particle quantitative blanking module 8.

[0023] As a further embodiment of the present invention, the graphene quantitative feeding module 7 includes a graphene feeding cylinder 701 and a graphene storage hopper 702 fixedly arranged at the top of the graphene feeding cylinder 701. A graphene feeding roller 703 is rotatably arranged in the inner cavity of the graphene feeding cylinder 701, and the graphene feeding roller 703 is fixedly connected with a rotating rod 602. Graphene feeding grooves 704 are equidistantly arranged on the outer side of the graphene feeding roller 703. When the linkage module 6 rotates driven by the rotating drive motor 5, the rotating rod 602 on the linkage module 6 can drive the graphene feeding roller 703 in the graphene quantitative feeding module 7 to rotate. When the graphene feeding roller 703 rotates, the graphene feeding can be accurately controlled.

[0024] As a further embodiment of the present invention, the plastic particle quantitative feeding module 8 includes a plastic particle feeding cylinder 801 and a plastic particle storage hopper 802 fixedly arranged at the top of the plastic particle feeding cylinder 801. A plastic particle feeding roller 803 is rotatably arranged in the inner cavity of the plastic particle feeding cylinder 801, and plastic particle feeding grooves 804 are equidistantly arranged on the outer side of the plastic particle feeding roller 803; The plastic particle feeding roller 803 is connected to the graphene feeding roller 703 through a shaft rod. The rotating rod 602 on the linkage module 6 can drive the plastic particle feeding roller 803 in the plastic particle quantitative feeding module 8 to rotate. When the plastic particle feeding roller 803 rotates, the plastic particle feeding can be accurately controlled, and the ratio of the feeding amounts between the graphene feeding roller 703 and the plastic particle feeding roller 803 is the same as the mixing ratio between graphene and plastic particles. When the rotating drive motor 5 drives the extruder 2 to rotate to produce graphene-modified plastic particles, the graphene quantitative feeding module 7 and the plastic particle quantitative feeding module 8 can be driven by the linkage module 6 to rotate and feed synchronously, and the feeding can be automatically quantitatively completed according to the mixing ratio between graphene and plastic particles, without the need for staff to weigh and measure graphene and plastic raw materials.

[0025] As a further embodiment of the present invention, the pressure relief module includes an exhaust cylinder body 903 and a filter assembly 904 provided at one end of the exhaust cylinder body 903 for intercepting graphene powder. Exhaust ports 905 are equidistantly arranged on the outer side of the exhaust cylinder body 903. A T-shaped pin rod 906 is inserted through one end of the exhaust cylinder body 903 away from the filter assembly 904. A piston assembly 907 is provided at one end of the T-shaped pin rod 906 penetrating into the exhaust cylinder body 903. A spring member 908 is sleeved on the outer side of one end of the T-shaped pin rod 906. The filter assembly 904 can filter and intercept graphene powder, and can prevent graphene powder from being discharged together with the gas. During the process of the graphene spraying module 13 spraying graphene powder into the premixing device 9, the air pressure in the premixing device 9 will continuously increase. When the air pressure increases to a certain extent and is greater than the elastic force of the spring member 908, the spring member 908 will be stretched, and the piston assembly 907 on the pressure relief module will move out of alignment with the exhaust ports 905 for exhaust, so that a certain intensity of air pressure can be maintained in the premixing device 9 all the time. The air pressure can be used to extrude the heated and melted material in the zigzag feeding pipe fitting 902, so that the material can continuously and evenly enter the extruder 2.

[0026] As a further embodiment of the present invention, the mixing module 10 includes a motor assembly 1001 fixedly installed on the outer side of the box body 901. The end of the output shaft of the motor assembly 1001 is fixedly connected with a mixing shaft rod 1002. Mixing blades 1003 are fixedly arranged equidistantly on the outer side of the mixing shaft rod 1002. The motor assembly 1001 drives the mixing blades 1003 to rotate through the mixing shaft rod 1002, and can perform secondary stirring and mixing on the graphene powder and plastic particles. A scraping assembly 1004 is fixedly sleeved on the outer side of the mixing shaft rod 1002, and the scraping assembly 1004 is attached to the inner surface of the filter assembly 904. While stirring and mixing, the mixing shaft rod 1002 can drive the scraping assembly 1004 in a linkage manner, and the scraping assembly 1004 can clean the dust on the surface of the filter assembly 904, which is beneficial to the discharge of gas.

[0027] As a further embodiment of the present invention, the vibration anti-blocking module 11 includes a cylindrical rod 1101 fixedly arranged at one end of the mixing shaft 1002 and a connecting member 1102 and a toggle member 1103 sleeved on the outside of the cylindrical rod 1101. The surface of the connecting member 1102 is fixed with a toggle column 1104 and a driving connecting rod 1105. One end of the driving connecting rod 1105 is rotatably connected to a driving arm 1106. The bottom end of the driving arm 1106 is connected to a sliding rod 1107 through a hinge shaft. The sliding sleeve on the outside of the sliding rod 1107 A guide sleeve 1108 is provided, and the guide sleeve 1108 is fixedly arranged on the outside of the pre-mixing device 9. A hammer head 1109 is fixedly provided at the bottom of the slide rod 1107. The top of the hammer head 1109 is located on the outside of the slide rod 1107 and is provided with a spring return member 1110. A vibration table 1111 is provided below the hammer head 1109, and the vibration table 1111 is fixedly installed on the outside of the pre-mixing device 9. The mixing module 10 performs secondary mixing on the graphene powder and the plastic particles, and can also drive the vibration anti-blocking module 11 The cylindrical rod 1101 on the upper part rotates, and the cylindrical rod 1101 rotates, and the connecting member 1102 can be rotated by the toggle member 1103. The toggle column 1104 on the connecting member 1102 moves from the bottom to the top following the connecting member 1102 under the toggle of the toggle member 1103. In the process, the connecting member 1102 pulls the slide bar 1107 and the hammer head 1109 upwards through the driving arm 1106. When the toggle column 1104 follows the connecting member 1102 to move to the top, the slide bar 1107 and the hammer head 1109 are pulled upwards. The head 1109 is quickly reset and hits the vibration table 1111 downwardly under the action of the spring return member 1110. When the hammer head 1109 hits the vibration table 1111 downwardly, the pre-mixing device 9 can be vibrated, which can effectively prevent the plastic raw materials from being blocked and affecting the normal feeding. Moreover, the hammer head 1109 rebounds and hits the vibration table 1111 under the elastic force of the spring return member 1110. The elastic force is easy to control. Compared with the direct contact between the connecting member 1102 and the cylindrical rod 1101, it is not easy to cause damage to the vibration table 1111. The connecting member 1102 is rotatably connected to the cylindrical rod 1101 via a bearing, and the toggle member 1103 is fixedly connected to the cylindrical rod 1101 .

[0028] As a further embodiment of the present invention, the toggle member 1103 includes an annular sleeve fixedly mounted on the outside of the cylindrical rod 1101 , two groups of toggle protrusions are symmetrically fixed on the outside of the annular sleeve, and the ends of the toggle protrusions are configured as arc structures.

[0029] As a further embodiment of the present invention, the graphene spraying module 13 includes a spraying pipe fitting 1301 fixedly arranged outside the premixing device 9. One end of the spraying pipe fitting 1301 is fixedly provided with a blowing pressure increasing cylinder 1302. An impeller driving rod 1303 is rotatably arranged in the inner cavity of the blowing pressure increasing cylinder 1302. A blower impeller 1304 is fixedly sleeved outside the impeller driving rod 1303. One end of the impeller driving rod 1303 passing through the blowing pressure increasing cylinder 1302 is fixedly provided with a driven gear 1305, and the driven gear 1305 is in transmission connection with the transmission gear 605. An air inlet is arranged at one end of the blowing pressure increasing cylinder 1302 close to the blower impeller 1304. When the linkage module 6 drives the graphene metering feeding module 7 and the plastic particle metering feeding module 8 to perform metering feeding, the transmission gear 605 can drive the driven gear 1305 to rotate. The driven gear 1305 can drive the blower impeller 1304 to rotate at a high speed through the impeller driving rod 1303, and blow the graphene powder fed by the graphene metering feeding module 7 into the premixing device 9. The graphene powder enters the premixing device 9 in a spraying manner, and will not accumulate locally, and can be more evenly mixed with the plastic particles fed into the premixing device 9 by the plastic particle metering feeding module 8.

[0030] Working principle of the present invention: When the rotary drive motor 5 drives the extruder 2 to rotate and produce graphene modified plastic particles, the linkage module 6 drives the graphene quantitative feeding module 7 and the plastic particle quantitative feeding module 8 to rotate synchronously and feed. The feeding can be automatically and quantitatively completed according to the mixing ratio between the graphene and the plastic particles, and the rotation speed of the graphene quantitative feeding module 7 and the plastic particle quantitative feeding module 8 changes with the change of the rotation speed of the extruder 2. When the rotation speed of the extruder 2 becomes faster, the feeding amount of the graphene quantitative feeding module 7 and the plastic particle quantitative feeding module 8 will increase synchronously. When the linkage module 6 drives the graphene quantitative feeding module 7 and the plastic particle quantitative feeding module 8 to feed quantitatively, the transmission gear 605 can drive the driven gear 1305 to rotate. The driven gear 1305 can drive the fan impeller 1304 to rotate at high speed through the impeller driving rod 1303 to blow the graphene powder put by the graphene quantitative feeding module 7 into the pre-mixing device 9. The graphene powder enters the pre-mixing device 9 in a blowing manner, and will not Local accumulation can more evenly mix the plastic particles put into the pre-mixing device 9 by the quantitative feeding module 8 of the plastic particles. The mixing module 10 is opened and the mixing module 10 can stir and mix the graphene powder and the plastic particles for a second time. While stirring and mixing, it can drive the vibration anti-blocking module 11 in conjunction with the vibration anti-blocking module 11. The vibration anti-blocking module 11 can drive the pre-mixing device 9 to vibrate, which can effectively prevent the plastic raw materials from being blocked and affecting normal feeding. In addition, during the process of the graphene blowing module 13 blowing the graphene powder into the pre-mixing device 9, the air pressure in the pre-mixing device 9 will continue to increase. When the air pressure rises to a certain level, the pressure relief module will open to exhaust, so that a certain intensity of air pressure can be maintained in the pre-mixing device 9. The air pressure can be used to extrude the heated and melted material in the zigzag feeding pipe 902, so that the material can always enter the extruder 2 evenly. After the raw materials enter the extruder 2 and are mixed and melted, they are finally cut into particles after cooling and extrusion molding by the water ring cutting die.

[0031] The basic principles, main features and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only illustrate the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements fall within the scope of the present invention as claimed, and the scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A preparation device for a graphene plastic material, comprising a base (1), an extruder (2) fixedly arranged on the base (1), and a mounting plate member (3), characterized in that, On one side of the base (1), a U-shaped mounting bracket (4) is fixedly provided. A rotary drive motor (5) is fixedly provided on the U-shaped mounting bracket (4). The end of the output shaft of the rotary drive motor (5) is connected to the extruder (2) through a transmission shaft rod. A linkage module (6) is fixedly connected to the outer side of the transmission shaft rod connected between the rotary drive motor (5) and the extruder (2). The end of the linkage module (6) is connected to a graphene metering and feeding module (7). One side of the graphene metering and feeding module (7) is connected to a plastic particle metering and feeding module (8) through a shaft rod. The bottom end of the plastic particle metering and feeding module (8) is connected to a premixing device (9) in a penetrating manner. A mixing module (10) is provided inside the premixing device (9). One end of the mixing module (10) penetrates through the premixing device (9) and is connected to a vibration anti-blocking module (11). A feeding pipe fitting (12) is fixedly provided at the bottom of the graphene metering and feeding module (7). The bottom end of the feeding pipe fitting (12) is connected to a graphene spraying module (13) in a penetrating manner. The graphene spraying module (13) is fixedly inserted into the mounting plate member (3). The premixing device (9) includes a box body (901) and a serrated feeding pipe fitting (902) with a heating function provided at the bottom of the box body (901). A pressure relief module is inserted on the outer side of the box body (901).

2. The preparation device of a graphene plastic material according to claim 1, characterized in that, The linkage module (6) includes a driving pulley (601) and a rotating rod member (602) rotatably provided on the mounting plate member (3) through a bearing. One end of the rotating rod member (602) away from the graphene metering and feeding module (7) is fixedly connected to a driven pulley (603). A transmission belt (604) is connected between the driven pulley (603) and the driving pulley (601). A transmission gear (605) is fixedly sleeved on the outer side of the rotating rod member (602). The transmission gear (605) is in transmission connection with the graphene spraying module (13).

3. The preparation device of a graphene plastic material according to claim 2, characterized in that, The graphene metering and feeding module (7) includes a graphene feeding cylinder (701) and a graphene storage hopper (702) fixedly provided at the top of the graphene feeding cylinder (701). A graphene feeding roller (703) is rotatably provided in the inner cavity of the graphene feeding cylinder (701). The graphene feeding roller (703) is fixedly connected to the rotating rod member (602). Graphene feeding grooves (704) are equidistantly formed on the outer side of the graphene feeding roller (703).

4. The preparation device of a graphene plastic material according to claim 3, characterized in that, The plastic particle metering and feeding module (8) includes a plastic particle feeding cylinder (801) and a plastic particle storage hopper (802) fixedly provided at the top of the plastic particle feeding cylinder (801). A plastic particle feeding roller (803) is rotatably provided in the inner cavity of the plastic particle feeding cylinder (801). Plastic particle feeding grooves (804) are equidistantly formed on the outer side of the plastic particle feeding roller (803). The plastic particle feeding roller (803) is connected to the graphene feeding roller (703) through a shaft rod. The feeding amount ratio between the graphene feeding roller (703) and the plastic particle feeding roller (803) is the same as the mixing ratio between graphene and plastic particles.

5. The preparation device of a graphene plastic material according to claim 1, characterized in that, The pressure relief module comprises an exhaust cylinder (903), a filter assembly (904) arranged at one end of the exhaust cylinder (903) for intercepting graphene powder, exhaust ports (905) are equidistantly provided on the outside of the exhaust cylinder (903), a T-shaped pin (906) is inserted through one end of the exhaust cylinder (903) away from the filter assembly (904), a piston assembly (907) is provided at one end of the T-shaped pin (906) passing through the exhaust cylinder (903), and a spring member (908) is sleeved on the outside of one end of the T-shaped pin (906).

6. The preparation device of a graphene plastic material according to claim 5, characterized in that, The mixing module (10) comprises a motor assembly (1001) fixedly mounted on the outside of the box (901); the end of the output shaft of the motor assembly (1001) is fixedly connected to a mixing shaft (1002); and mixing blades (1003) are fixedly provided at equal intervals on the outside of the mixing shaft (1002); A scraping assembly (1004) is provided on the fixed sleeve outside the mixing shaft (1002), and the scraping assembly (1004) is attached to the inner surface of the filtering assembly (904).

7. The manufacturing apparatus of a graphene plastic material according to claim 6, characterized in that, The vibration anti-blocking module (11) comprises a columnar rod (1101) fixedly arranged at one end of a mixing shaft (1002), a connecting member (1102) and a toggle member (1103) sleeved on the outside of the columnar rod (1101), a toggle column (1104) and a driving connecting rod (1105) fixedly provided on the surface of the connecting member (1102), one end of the driving connecting rod (1105) being rotatably connected to a driving arm (1106), and the bottom end of the driving arm (1106) being connected to a sliding rod (1107) via a hinge shaft. The outer sliding sleeve of the slide rod (1107) is provided with a guide sleeve (1108), and the guide sleeve (1108) is fixedly arranged on the outer side of the pre-mixing device (9); the bottom end of the slide rod (1107) is fixedly provided with a hammer head (1109), the top of the hammer head (1109) is located on the outer side of the slide rod (1107) and is provided with a spring return member (1110); a vibration table (1111) is provided below the hammer head (1109), and the vibration table (1111) is fixedly installed on the outer side of the pre-mixing device (9); The connecting member (1102) and the columnar rod (1101) are rotationally connected via a bearing, and the toggle member (1103) and the columnar rod (1101) are fixedly connected.

8. The preparation device of a graphene plastic material according to claim 7, characterized in that, The toggle member (1103) comprises an annular sleeve fixedly sleeved on the outside of the columnar rod (1101), two groups of toggle protrusions are symmetrically fixedly provided on the outside of the annular sleeve, and the ends of the toggle protrusions are configured as arc-shaped structures.

9. The preparation device of a graphene plastic material according to claim 2, characterized in that, The graphene spraying module (13) includes a spraying pipe fitting (1301) fixedly arranged outside the premixing device (9). One end of the spraying pipe fitting (1301) is fixedly provided with a blowing pressure increasing cylinder (1302). A impeller driving rod (1303) is rotatably arranged in the inner cavity of the blowing pressure increasing cylinder (1302). A fan impeller (1304) is fixedly sleeved outside the impeller driving rod (1303). One end of the impeller driving rod (1303) penetrating through the blowing pressure increasing cylinder (1302) is fixedly provided with a driven gear (1305), and the driven gear (1305) is in transmission connection with a transmission gear (605). An air inlet is arranged at one end of the blowing pressure increasing cylinder (1302) close to the fan impeller (1304).

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