A production device and production process for graphene spun-bond nonwoven fabric

Abstract

The present application relates to the field of production of spun-bond nonwoven fabric, and particularly relates to a production equipment for graphene spun-bond nonwoven fabric, which is provided with an extrusion mechanism, an electric mesh chain conveying belt and a hot-pressing curing mechanism on a platform, the bottom of the extrusion mechanism is provided with an airflow guide box, the output port at the bottom of the box body is flexibly connected with a rubber sleeve, and a plurality of guide plates driven by oil pressure mechanisms to rotate are rotatably installed on both sides of the bottom end of the rubber sleeve through fixing plates, and a pair of side baffles are combined with the plurality of guide plates to form an air outlet adjusting cover around the bottom of the airflow guide box. In the present application, the middle part of the electric mesh chain conveying belt is provided with an air pressure sensing mechanism composed of an oil mechanism, which can change the size of the air outlet of the guide plate air outlet cover mechanism at the discharge port through the change of air pressure when local defects occur in the formation of the fiber web, so as to guide the change of the material airflow to make up for the missing part of the fiber web, effectively improve the formation quality of the fiber web and reduce the local missing defects of the traditional fiber web.

Description

Technical Field

[0001] This invention relates to the field of spunbond nonwoven fabric production technology, and in particular to a production equipment and process for graphene spunbond nonwoven fabric. Background Technology

[0002] In the production process of graphene spunbond nonwoven fabric, the material filaments are cooled by side blowing and stretched by airflow, then fall vertically at extremely high speed and are formed on the forming curtain, and finally cured into fabric by hot press rollers.

[0003] In actual production, if airflow fluctuations or uneven spinning cause momentary or continuous deviations in the filament flow, resulting in temporary thinning or loss of the fiber web, traditional spunbond devices lack effective mechanisms to reduce or mitigate such situations. Therefore, structural and quality problems of the fiber web are prone to occur during the forming stage. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a production equipment and process for graphene spunbond nonwoven fabrics.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A production device for graphene spunbond nonwoven fabric includes a platform, on which an extrusion mechanism, an electric mesh conveyor belt, and a hot-press curing mechanism are configured. An airflow guide box is provided at the bottom of the extrusion mechanism. A rubber sleeve is flexibly connected to the output port at the bottom of the box. Multiple guide plates driven to rotate by a hydraulic mechanism are rotatably installed on both sides of the bottom end of the rubber sleeve through a fixed plate. Multiple guide plates, together with a pair of side baffles, surround the air outlet adjustment cover at the bottom of the airflow guide box. Each guide plate has a female head docking post and a male head docking post on both sides, which are mutually docking mechanisms. Adjacent guide plates are coaxially engaged by interlocking with each other through a limiting groove at the end of the female head docking post and a locking block at the end of the male head docking post. Both the female head docking post and the male head docking post have a toothed groove mechanism at their ends that can mesh with each other. When any guide plate moves down along the fixed plate, the female head docking post and the adjacent male head docking post are engaged with each other through toothed grooves. The electric mesh conveyor belt is equipped with a testing platform in the middle, and a testing plate that moves vertically with the change of wind pressure is set in the middle of the testing platform. The testing plate is connected to the input end of the hydraulic mechanism, and the output end of the hydraulic mechanism is connected to the end of the guide plate. The female and male docking posts on both sides of the guide plate are connected to the guide rod. One end of the guide rod extends into the inclined guide groove opened in the side wall of the fixed plate. When the hydraulic mechanism drives the guide plate to move downward, the female docking post is guided by the inclined guide groove and cancels the coaxial meshing with the male docking post of the adjacent guide plate to achieve tooth groove meshing.

[0006] Preferably, the hydraulic mechanism includes multiple sets of main oil pipes and branch hoses. The input end of each main oil pipe is independently connected to multiple bearing cylinders set in the middle of the testing platform. The other end of the main oil pipe extends upward to the outside of the airflow guide box and branches out into a pair of branch hoses. Each pair of branch hoses is independently connected to multiple excitation cylinders installed at the bottom of the airflow guide box. The bottom of the excitation cylinder is rotatably connected to the fixed plate through a rotating support, and the end of the cylinder telescopic rod is rotatably connected to the guide plate through a rotating support.

[0007] Preferably, the electric mesh conveyor belt has a testing platform installed inside by a mounting frame. The mounting frame is fixed to the platform on both sides. The upper part of the testing platform has multiple vertical slots. A testing plate is slidably installed in each slot. The testing plate is connected to the piston rod end of the bearing cylinder installed in the slot. When the testing plate is displaced along the slot due to air pressure fluctuations, it synchronously drives the piston of the bearing cylinder to move.

[0008] Preferably, an arranging plate is vertically installed at the bottom of the airflow guide box, and a lead screw motor is installed in the middle of the arranging plate. The output lead screw of the lead screw motor is threadedly connected to a connecting frame fixed on the side wall of the rubber sleeve. Multiple micro switches are arrayed on the arranging plate, and the sensing position of each micro switch corresponds to the arrangement position of each excitation cylinder.

[0009] Preferably, a connecting rod is rotatably mounted on the upper part of the bottom of the excitation cylinder. The connecting rod extends upward and passes through the guide ring provided on the inner side of the arrangement plate. The end of the connecting rod points to and is directly opposite the trigger end of the micro switch. The micro switch is electrically connected to the lead screw motor.

[0010] Preferably, one end of each of the female and male connectors is independently connected to a guide rod that is horizontally installed through the middle of the guide plate. One end of the guide rod extends out of the guide plate and into an inclined guide groove opened on the side wall of the fixed plate. The groove trajectory of the inclined guide groove is inclined from top to bottom and gradually shifts outward. The guide rod slides within the guide groove. When the guide rod moves down, it is constrained by the inclined guide groove and generates a horizontal component force outward when it moves down.

[0011] Preferably, the guide plate has a mounting groove in the middle for the lateral displacement of the guide rod, a pair of limiting blocks are symmetrically arranged in the middle of the guide rod and are slidably fitted in the mounting groove, and a return spring is sleeved on the outside of the guide rod, with one end of the return spring abutting against the limiting block and the other end connected to the inner wall of the mounting groove.

[0012] Preferably, the female connector post has a tapered head with a toothed groove 1, a limiting groove at the end of the tapered head, and a locking block at the end of the male connector post forming a locking mechanism. The outer wall of the male connector post has a corresponding toothed groove 2 that meshes with and matches the toothed groove 1.

[0013] A production process for graphene spunbond nonwoven fabric includes the following steps: S1. The melt is spun into fibers by the extrusion mechanism and drawn by the airflow guide box, and then sprayed onto the mesh conveyor belt to interweave into a nascent fiber web; S2. The detection platform captures the residual airflow penetrating the fiber mesh in real time. If the fiber mesh is thin in a certain area, the detection plate will be displaced by high pressure, and the gas signal will be converted into an oil pressure signal. S3. The hydraulic signal guide plate rotates and expands to form a wide opening, and in conjunction with the adjacent guide plate to form a narrow opening, inducing the wire bundle to converge, and synchronously starting the screw motor to drive the bushing to move laterally for alignment. S4. The compensated uniform fiber web is fed into the hot pressing and curing mechanism by the guide plate, and is then pressed into a cloth by the hot rolling rollers at high temperature and finally wound.

[0014] The beneficial effects of this invention are as follows: In this invention, the electric mesh conveyor belt is equipped with a wind pressure sensing mechanism composed of an oil mechanism in the middle. When a local defect occurs during the fiber mesh forming process, the wind pressure is changed to link the guide plate air outlet mechanism at the discharge port to change the size of the air outlet, so as to guide the material airflow to compensate for the missing part of the fiber mesh, effectively improving the fiber mesh forming quality and reducing the local defects of traditional fiber mesh. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a production equipment for graphene spunbond nonwoven fabric proposed in this invention. Figure 1 ; Figure 2 This is a schematic diagram of the overall structure of a production equipment for graphene spunbond nonwoven fabric proposed in this invention. Figure 2 ; Figure 3 This is a schematic diagram of the overall structure of the extrusion mechanism proposed in this invention; Figure 4 This is a schematic diagram of the electric mesh conveyor belt structure proposed in this invention; Figure 5 This is a schematic diagram of the installation structure of the testing platform proposed in this invention. Figure 1 ; Figure 6 This is a schematic diagram of the installation structure of the testing platform proposed in this invention. Figure 2 ; Figure 7 This is a schematic diagram of the bottom structure of the airflow guiding box proposed in this invention; Figure 8 This is a partial structural diagram of the airflow guiding box proposed in this invention; Figure 9 This is a schematic diagram of the fixing plate connection structure proposed in this invention; Figure 10 This is a schematic diagram of the oil injection pipe connection structure proposed in this invention; Figure 11This is a schematic diagram of the guide plate mounting structure proposed in this invention; Figure 12 This is a schematic diagram of the male and female connector joint connection structure proposed in this invention. Figure 1 ; Figure 13 This is a schematic diagram of the male and female connector joint connection structure proposed in this invention. Figure 2 ; Figure 14 This is a schematic diagram of the male and female connector joint connection structure proposed in this invention. Figure 3 .

[0016] In the diagram: 1. Extrusion mechanism; 2. Airflow guide box; 3. Hot-press curing mechanism; 301. Conveyor belt; 4. Main oil pipe; 41. Branch hose; 5. Electric mesh conveyor belt; 6. Platform; 7. Mounting frame; 8. Testing table; 81. Bearing cylinder; 82. Testing plate; 9. Guide plate; 10. Excitation cylinder; 11. Arrangement plate; 111. Micro switch; 112. Guide ring; 12. Screw motor; 13. Side baffle; 14. Fixing plate; 15. Rotary support; 16. Connecting rod; 17. Rubber sleeve; 171. Secondary output port; 18. Connecting frame; 19. Female connector post; 191. Tooth groove one; 192. Limiting groove; 20. Male connector post; 201. Locking block; 202. Tooth groove two; 21. Inclined guide groove; 22. Mounting groove; 23. Limiting block; 24. Return spring; 25. Guide rod. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0018] Reference Figure 1-6 A production device for graphene spunbond nonwoven fabric, wherein platform 6 serves as a bearing platform, with an extrusion mechanism 1 on one side and a hot-press curing mechanism 3 on the other side. The extrusion mechanism 1 is used to extrude the melt containing graphene main material through a die to form a continuous filament bundle, while the hot-press curing mechanism 3 is used to hot-roll and reinforce the formed fiber web.

[0019] An airflow guide box 2 is arranged directly below the extrusion mechanism 1. Multiple airflow guide mechanisms are arranged on the outside of the airflow guide box 2. The extrusion mechanism 1 works with the airflow guide box 2 to stretch the extruded discrete fiber bundles. In addition, an airflow outlet for fiber bundle output is opened at the bottom of the airflow guide box 2. A rubber sleeve 17 is movably sleeved on the outside of the airflow outlet. The bottom end of the rubber sleeve 17 is connected to a secondary outlet 171. The fiber bundle is finally sprayed onto the electric mesh conveyor belt 5 below through the secondary outlet 171.

[0020] An electric mesh conveyor belt 5 is inclinedly arranged below the airflow guide box 2. The electric mesh conveyor belt 5 has multiple conveying rollers and electric drive rollers in the middle to provide structural support and power transmission. Its mesh conveying surface is set as an inclined surface to receive the graphene fiber filaments falling from above and initially form a fiber web. A conveyor belt 301 is connected to the side away from the electric mesh conveyor belt 5. The conveyor belt 301 is connected to the thermosetting curing mechanism 3. The thermosetting curing mechanism 3 includes a thermosetting roller assembly and an electric drive device for driving the displacement of the conveyor belt 301. The thermosetting curing mechanism 3 is a conventional configuration in the art and common knowledge to those skilled in the art, so it will not be explained further.

[0021] The conveyor belt 301 and the electric mesh conveyor belt 5 are connected by a guide metal plate. The fiber mesh is transmitted to one side of the conveyor belt 301 via the electric mesh conveyor belt 5 and then enters the conveyor belt 301 for connection and conveying via the guide metal plate.

[0022] Furthermore, a testing platform 8 is installed in the internal area of ​​the electric mesh conveyor belt 5 by a mounting frame 7. The mounting frame 7 is fixed on the platform 6 on both sides. Multiple vertical slots are opened on the upper part of the testing platform 8. A testing plate 82 is slidably installed in each slot. The pressure-bearing surface of the testing plate 82 faces upward and towards the airflow outlet at the bottom of the airflow guide box 2.

[0023] In operation, the downward air pressure applied by the air outlet acts directly on the detection plate 82 and drives the detection plate 82 to generate displacement within the slot. A bearing cylinder 81 is installed in the slot in the middle of the detection table 8. The piston rod end of the bearing cylinder 81 is connected to the inside of the detection plate 82. When the detection plate 82 is subjected to air pressure fluctuations and generates vertical displacement, it synchronously drives the piston of the bearing cylinder 81 to generate feedback motion.

[0024] Furthermore, the oil output end of the bearing cylinder 81 is connected to the main oil pipe 4. The main oil pipe 4 extends outward and is fixed by the platform 6, extends upward to the outside of the airflow guide box 2, and branches out a pair of branch hoses 41. Each pair of branch hoses 41 is connected to multiple excitation cylinders 10 installed at the bottom of the airflow guide box 2.

[0025] Reference Figure 7-11 A pair of side baffles 13 are installed on both sides of the auxiliary output port 171, and multiple fixed plates 14 are symmetrically installed on the other two sides. Each fixed plate 14 is rotatably connected to a guide plate 9 via a guide rod 25. The multiple guide plates 9 and side baffles 13 are combined to form an integral air outlet regulating cover. Rotary supports 15 are fixedly installed on the outer sides of the guide plates 9 and fixed plates 14. Adjacent rotary supports 15 are connected by an excitation cylinder 10. The bottom of the excitation cylinder 10 is rotatably connected to the fixed plate 14 via the rotating support 15, and the end of the cylinder extension rod is rotatably connected to the guide plate 9 via the rotating support 15. In its natural state, the excitation cylinder 10 is in an outward tilt position. When the excitation cylinder 10 performs the extension action, the thrust component generated at its output end drives the guide plate 9 to perform rotational displacement around the guide rod 25.

[0026] Furthermore, an arrangement plate 11 is vertically installed at the bottom of the airflow guide box 2, and a lead screw motor 12 is installed in the middle of the arrangement plate 11. The output lead screw of the lead screw motor 12 is threadedly connected to the connecting frame 18 fixed on the side wall of the rubber sleeve 17. The rotational motion of the motor is converted into the lateral displacement of the connecting frame 18 and the rubber sleeve 17 by the lead screw transmission pair. Next, multiple microswitches 111 are arrayed on the arrangement plate 11, and the sensing position of each microswitch 111 corresponds to the arrangement position of each excitation cylinder 10. A connecting rod 16 is rotatably installed at the bottom of the excitation cylinder 10. The connecting rod 16 extends upward and passes through the guide ring 112 provided on the inner side of the arrangement plate 11. Its end points to and is directly opposite the trigger end of the microswitch 111. The microswitch 111 establishes an electrical connection with the lead screw motor 12 and constructs a closed-loop feedback circuit through an external control device. When the excitation cylinder 10 moves and drives the connecting rod 16 to move to a predetermined stroke, the end of the connecting rod 16 continuously presses against the contact of the microswitch 111 and generates an electrical feedback signal. The electrical signal is processed by the control unit and drives the lead screw motor 12 to start. Correspondingly, when the connecting rod 16 is released from the pressure on the microswitch 111, it triggers the lead screw motor 12 to perform a reverse rotation action, thereby driving the rubber sleeve 17 to return to the initial reference position.

[0027] Reference Figure 12-14 The two sides of the fixing plate 14 are symmetrically provided with female head docking posts 19 and male head docking posts 20 that cooperate with each other. At one end of the female head docking post 19 and the male head docking post 20, a guide rod 25 is independently connected and horizontally installed through the middle of the guide plate 9. The end of the guide rod 25 passes through the guide plate 9 and extends into the inclined guide groove 21 opened on the side wall of the fixing plate 14.

[0028] The inclined guide groove 21 has a groove trajectory that is inclined from top to bottom and gradually shifts outward. The guide rod 25 is limited to sliding inside the groove. When the external power drives the guide rod 25 to perform a downward stroke, it is forced to move by the physical trajectory of the inclined guide groove 21. At the same time as the vertical displacement, the guide rod 25 generates a horizontal component force to the outside, thereby driving the female head docking post 19 or the male head docking post 20 to perform an outward expansion action.

[0029] Meanwhile, a mounting groove 22 specifically for the lateral displacement of the guide rod 25 is provided in the middle of the guide plate 9. A pair of limiting blocks 23 symmetrically arranged in the middle section of the guide rod 25 are slidably fitted in the mounting groove 22. A return spring 24 is sleeved on the outer periphery of the guide rod 25. One end of the return spring 24 abuts against the side of the limiting block 23, and the other end is connected to the inner wall of the mounting groove 22.

[0030] Furthermore, the female head docking post 19 has a tapered head and a toothed groove 191. A limiting groove 192 is provided at the end of the tapered head. The limiting groove 192 and the locking block 201 provided at the end of the male head docking post 20 form a locking and engaging mechanism. The axial rigid constraint between adjacent guide plates 9 is achieved through physical engagement. In addition, the outer wall of the male head docking post 20 is provided with a toothed groove 202 that meshes and matches with the toothed groove 191.

[0031] In this embodiment, in the basic production process of graphene spunbond nonwoven fabric, the extrusion mechanism 1 uniformly extrudes the melt containing graphene main material and polymer carriers such as polypropylene through the internal distribution plate and spinneret. The graphene material is in a molten state, and the extruded discrete fiber bundles enter the airflow guide box 2. Under the action of high-speed cooling airflow, the airflow stretches the fiber bundles. The stretched fiber bundles are sprayed from the auxiliary output port 171 through the rubber sleeve 17 to the electric mesh conveyor belt 5 below in conjunction with the airflow, initially forming a fiber web. Subsequently, the fiber web is smoothly transferred to the conveyor belt 301 by the guide metal plate and finally enters the hot pressing curing mechanism 3, where it is compacted by the high temperature of the hot rollers.

[0032] During the fabrication process, if the temporary fiber web becomes thinner or missing due to airflow fluctuations or uneven spinning, the effective air pressure exerted by the airflow on the detection platform 8 below the missing fiber web will increase significantly. At this time, the detection plate 82 located in this area will be driven by the increased force to move downward and simultaneously compress the bearing cylinder 81. After the hydraulic oil inside the bearing cylinder 81 is pressurized, it will be pumped through the main oil pipe 4 and the branch hose 41 to the triggering cylinder 10 above. The hydraulic pressure can effectively buffer and stabilize the airflow, ensuring the stability of the triggering process.

[0033] Driven by hydraulic pressure, the extension rod of the excitation cylinder 10 performs a jacking action. Since the excitation cylinder 10 is tilted outward in its natural state, the thrust component generated by its jacking drives the guide plate 9 to rotate outward around the guide rod 25. During this stroke, the guide rod 25 is constrained by the physical trajectory of the inclined guide groove 21 on the side wall of the fixed plate 14, and by the male head docking post 20 and the adjacent female head docking post 19 (locking block 201 and limiting groove 192), resulting in a composite displacement from top to bottom and then outward, thereby changing the local air outlet diameter of the secondary output port 171 and forming a local wide opening. Synchronously, as the guide plate 9 moves downward and outward, the female head docking post 19 gradually disengages from the male head docking post 20 of the adjacent guide plate 9. Then, under the action of the inclined guide groove 21, the tooth groove 191 at the female end and the tooth groove 202 at the male end achieve rapid tooth-direction hard engagement through the guiding action of the conical surface. The tooth opening is chamfered to improve the engagement efficiency. At this point, as the guide plate 9 at the missing part completes engagement with the adjacent guide plate 9, the guide plate 9 at the missing part will drive the adjacent guide plate 9 to rotate in the opposite direction when rotating. In actual application, the fiber bundle tends to converge in the wide opening area with less resistance and larger throughput during airflow transportation, thereby achieving automatic compensation of fiber delivery in the missing area of ​​the fabric.

[0034] Furthermore, the activation of the hydraulic cylinder 10 drives the connecting rod 16 to slide upward along the guide ring 112 and continuously press against the micro switch 111. The electrical feedback signal generated by the micro switch 111 after being pressed is processed by the control unit and drives the lead screw motor 12 to run. The lead screw motor 12 drives the connecting frame 18 to move laterally through the lead screw transmission pair, thereby driving the entire rubber sleeve 17 to make a fine adjustment of its position relative to the fabric area. Therefore, when a fiber surface is missing or the basis weight is insufficient, the rubber sleeve 17 equipped with multiple guide plates 9 will actively move in the conveying direction, causing the rubber sleeve 17 to be quickly deployed at the missing part, and synchronously linking the guide plate 9 at the corresponding missing position to perform an expansion action. The distributed fiber bundles will be introduced more from the formed wide area, thereby effectively filling the missing part of the fiber web with materials and compensating for the basis weight.

[0035] Once the wind pressure on the detection plate 82 returns to the preset normal range, the expanded wide opening gradually contracts until the rubber sleeve 17 returns to its original reference position. At this time, the excitation cylinder 10 contracts and drives the guide plate 9 to reset and rotate.

[0036] During this adjustment process, some material at the narrow opening will flow to the wide opening, causing a slight reduction in the original thickness of the fiber web at the narrow opening. However, the overall fabric thickness fluctuation caused by the local material replenishment is extremely small compared to the original defect and is within the tolerance range of normal operation.

[0037] In addition, it should be noted that the extrusion mechanism 1, the airflow guide box 2, and the hot-press curing mechanism 3 are conventional and necessary configurations of existing spunbond nonwoven fabric equipment. The specific internal structures and their operating principles not explained in detail above are common knowledge to those skilled in the art. In addition, the limiting groove 192 on the female head docking post 19 is a vertical through structure, which ensures that when the guide plate 9 at any position moves downward, regardless of which side the female head docking post 19 descends relative to the male head docking post 20 or vice versa, it can engage with the adjacent guide plate 9 which is in the static reference position.

[0038] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A production device for graphene spunbond nonwoven fabric, comprising a platform (6), characterized in that, The platform (6) is equipped with an extrusion mechanism (1), an electric mesh conveyor belt (5), and a hot-press curing mechanism (3). The bottom of the extrusion mechanism (1) is provided with an airflow guide box (2). The output port at the bottom of the box is flexibly connected to a rubber sleeve (17). Multiple guide plates (9) driven by the hydraulic mechanism are rotatably installed on both sides of the bottom end of the rubber sleeve (17) through a fixing plate (14). Multiple guide plates (9) are combined with a pair of side baffles (13) to surround the bottom of the airflow guide box (2) to form an air outlet adjustment cover. Each guide plate (9) has a female head docking post (19) and a male head docking post (20) on both sides, which are docking mechanisms. Adjacent guide plates (9) are connected to each other through a limiting groove (192) opened at the end of the female head docking post (19) and a locking block (201) set at the end of the male head docking post (20) to achieve coaxial meshing. The ends of the female head docking post (19) and the male head docking post (20) are provided with a traditional toothed groove mechanism that can mesh with each other. When any guide plate (9) moves down along the fixed plate (14), the female head docking post (19) and the adjacent male head docking post (20) achieve toothed groove meshing docking. The electric mesh conveyor belt (5) is provided with a testing platform (8) in the middle. The testing platform (8) is provided with a testing plate (82) that moves vertically with the change of wind pressure. The testing plate (82) is connected to the input end of the hydraulic mechanism. The output end of the hydraulic mechanism is connected to the end of the guide plate (9). The female head docking column (19) and male head docking column (20) on both sides of the guide plate (9) are connected to the guide rod (25). One end of the guide rod (25) extends into the inclined guide groove (21) opened on the side wall of the fixed plate (14). When the hydraulic mechanism drives the guide plate (9) to go down, the female head docking column (19) is guided by the inclined guide groove (21) and cancels the coaxial meshing with the male head docking column (20) of the adjacent guide plate (9) to achieve tooth groove meshing docking.

2. The production equipment for graphene spunbond nonwoven fabric according to claim 1, characterized in that, The hydraulic mechanism includes multiple sets of main oil pipes (4) and branch hoses (41). The input end of each main oil pipe (4) is independently connected to multiple bearing cylinders (81) set in the middle of the test platform (8). The other end of the main oil pipe (4) extends upward to the outside of the airflow guide box (2) and branches out a pair of branch hoses (41). Each pair of branch hoses (41) is independently connected to multiple excitation cylinders (10) installed at the bottom of the airflow guide box (2). The bottom of the excitation cylinder (10) is rotatably connected to the fixed plate (14) through a rotating support (15), and the end of the cylinder telescopic rod is rotatably connected to the guide plate (9) through a rotating support (15).

3. The production equipment for graphene spunbond nonwoven fabric according to claim 2, characterized in that, The electric mesh conveyor belt (5) has a testing platform (8) installed inside by a mounting frame (7). The mounting frame (7) is fixed on both sides of the platform (6). The upper part of the testing platform (8) has multiple vertical slots. Each slot has a testing plate (82) that is slidably installed in a limited position. The testing plate (82) is connected to the piston rod end of the bearing cylinder (81) installed in the slot. When the testing plate (82) is displaced along the slot due to air pressure fluctuations, it synchronously drives the piston of the bearing cylinder (81) to move.

4. The production equipment for graphene spunbond nonwoven fabric according to claim 1, characterized in that, The airflow guide box (2) is vertically mounted with an arrangement plate (11) at the bottom. A lead screw motor (12) is installed in the middle of the arrangement plate (11). The output lead screw of the lead screw motor (12) is threadedly connected to the connecting frame (18) fixed on the side wall of the rubber sleeve (17). Multiple micro switches (111) are arrayed on the arrangement plate (11), and the sensing position of each micro switch (111) corresponds to the arrangement position of each excitation cylinder (10).

5. The production equipment for graphene spunbond nonwoven fabric according to claim 4, characterized in that, A connecting rod (16) is rotatably mounted on the upper part of the bottom of the excitation cylinder (10). The connecting rod (16) extends upward and passes through the guide ring (112) provided on the inner side of the arrangement plate (11). The end of the connecting rod (16) points to and is directly opposite the trigger end of the micro switch (111). The micro switch (111) is electrically connected to the lead screw motor (12).

6. The production equipment for graphene spunbond nonwoven fabric according to claim 1, characterized in that, One end of each of the female connector (19) and male connector (20) is independently connected to a guide rod (25) that is horizontally installed in the middle of the guide plate (9). One end of the guide rod (25) passes through the guide plate (9) and extends into the inclined guide groove (21) opened on the side wall of the fixed plate (14). The groove trajectory of the inclined guide groove (21) is inclined from top to bottom and gradually shifts outward. The guide rod (25) slides in the guide groove. When the guide rod (25) moves down, it is constrained by the inclined guide groove (21) and generates a horizontal component force outward when it moves down.

7. The production equipment for graphene spunbond nonwoven fabric according to claim 6, characterized in that, The guide plate (9) has a mounting groove (22) in the middle for the lateral displacement of the guide rod (25). A pair of limiting blocks (23) are symmetrically arranged in the middle of the guide rod (25) and are slidably fitted in the mounting groove (22). A return spring (24) is sleeved on the outside of the guide rod (25). One end of the return spring (24) abuts against the limiting block (23), and the other end is connected to the inner wall of the mounting groove (22).

8. The production equipment for graphene spunbond nonwoven fabric according to claim 1, characterized in that, The female head docking post (19) has a conical head and a toothed groove (191) is provided. A limiting groove (192) is provided at the end of the conical head. The limiting groove (192) and the locking block (201) provided at the end of the male head docking post (20) constitute a locking and snapping mechanism. The outer wall of the male head docking post (20) is provided with a toothed groove (202) that meshes and matches with the toothed groove (191).

9. A production process for graphene spunbond nonwoven fabric, characterized in that, Includes the following steps: S1. The melt is spun into fibers by the extrusion mechanism and drawn by the airflow guide box, and then sprayed onto the mesh conveyor belt to interweave into a nascent fiber web; S2. The detection platform captures the residual airflow penetrating the fiber mesh in real time. If the fiber mesh is thin in a certain area, the detection plate will be displaced by high pressure, and the gas signal will be converted into an oil pressure signal. S3. The hydraulic signal guide plate rotates and expands to form a wide opening, and in conjunction with the adjacent guide plate to form a narrow opening, inducing the wire bundle to converge, and synchronously starting the screw motor to drive the bushing to move laterally for alignment. S4. The compensated uniform fiber web is fed into the hot pressing and curing mechanism by the guide plate, and is then pressed into a cloth by the hot rolling rollers at high temperature and finally wound.

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