A high-performance sound-absorbing and heat-insulating material production system

Abstract

The present invention discloses a production system for a high-performance sound-absorbing and heat-insulating material, which relates to the technical field of meltblown cloth production. It includes a device main body, and the device main body includes a fixing frame. It also includes an extrusion component, a meltblown component, an adjustment component and a forming component. The extrusion component includes an extruder fixed on the top of the fixing frame, and the extruder includes a filtering component. The meltblown component includes a meltblown main body fixed at the bottom of the fixing frame. A flow guiding member, a spinneret member, a guiding member, a fastening member and a venting member are respectively arranged in the meltblown main body. The adjustment component includes an adjustment cylinder arranged in the meltblown component. A first sealing member is hermetically and slidably connected in the adjustment cylinder, and one end of the first sealing member extending into the adjustment cylinder is fixedly connected with an adjustment rod. The present invention adjusts the pressure of the high-pressure molten plastic in the shunt channel through the compression and relaxation of the first elastic member, thereby preventing the problem that the plastic fibers ejected through the spinneret holes have uneven diameters due to the pressure fluctuation of the molten plastic in the shunt channel.

Description

Technical Field

[0001] The present invention relates to the technical field of meltblown cloth production, and particularly to a production system for high-performance sound-absorbing and heat-insulating materials. Background Art

[0002] Meltblown cloth is composed of a large number of randomly distributed ultra-fine fibers, and these fibers are intertwined with each other to form abundant pores. When sound waves enter the meltblown cloth, they will be continuously reflected and refracted in these pores. The energy of the sound waves will be continuously consumed in this process, and a part of it is converted into the vibration energy of the fibers, and then dissipated as heat through the internal friction of the fibers and other effects, thus achieving the sound-absorbing effect. Moreover, the pore size and distribution are relatively uniform, and it can absorb sound waves of different frequencies to a certain extent, and can achieve good sound-absorbing performance in a relatively wide frequency range. The ultra-fine fibers in the meltblown cloth are intertwined with each other to form a dense network structure, which can effectively block thermal radiation and heat convection. For thermal radiation, the fibers can absorb and reflect a part of the heat, reducing the heat transfer; for heat convection, the presence of the fibers disrupts the air flow path, hinders the convective movement of the air, and thus reduces the efficiency of heat convection, further enhancing the heat-insulating effect.

[0003] Chinese Patent with application number 202010515004.9 discloses a meltblown cloth and a device for processing the meltblown cloth, including a meltblown machine base body. One end of the meltblown machine base body is fixedly connected with a metering pump, the input end of the metering pump is electrically connected with the output end of the mains supply, one end of the metering pump is fixedly connected with a melt filter, one side of the melt filter is fixedly connected with an extruder, and a solid material adding mechanism is arranged at the other end of the meltblown machine base body. In the present invention, the functional additive is placed at the top of the mixing chamber through the storage chamber, the driving convex block is rotated by the servo motor, the feeding net plate is driven to slide along the top of the feeding net plate through the cooperation of the driving convex block and the transmission convex block, and through the action of the telescopic spring and the sliding plate, the feeding net plate is reset, so that the additive in the storage chamber continuously and evenly drops into the mixing chamber, making the combination between the additive and the meltblown cloth more firm, and at the same time making the additive more uniform inside the meltblown cloth. However, when the above invention is in production, although it avoids the phenomena of pores, uneven mixing of additives, insecure connection, embrittlement and hardening in the production process of the meltblown cloth, thereby improving the final product quality of the meltblown cloth, there is still a problem that due to the unstable pressure of the molten plastic extruded by the extruder, when the plastic fibers are stretched by hot air, there is a problem of uneven diameter, and the quality of the entire meltblown cloth cannot be guaranteed.

[0004] Therefore, the present invention proposes a production system for high-performance sound-absorbing and heat-insulating materials to solve the above problems. Summary of the Invention

[0005] The object of the present invention is to provide a high-performance sound-absorbing and heat-insulating material production system to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: A high-performance sound-absorbing and heat-insulating material production system, including a device main body, the device main body includes a fixing frame, and further includes an extrusion assembly, a meltblowing assembly, an adjusting assembly and a forming assembly. The extrusion assembly includes an extruder fixed on the top of the fixing frame; the meltblowing assembly includes a meltblowing main body fixed on the bottom of the fixing frame, and a flow guiding member, a spinneret member, an outlet member, a fastening member and a ventilation member are respectively arranged in the meltblowing main body; the adjusting assembly includes an adjusting cylinder arranged in the meltblowing assembly, a first sealing member is hermetically and slidably connected in the adjusting cylinder, and one end of the first sealing member extending into the adjusting cylinder is fixedly connected with an adjusting rod; the forming assembly includes a mesh belt receiver arranged at the bottom of the meltblowing main body, and a trimming and winding machine is arranged at one end of the mesh belt receiver away from the meltblowing main body.

[0007] Preferably, a first elastic member is sleeved on the outer wall of the adjusting rod in the adjusting cylinder. One end of the first elastic member is connected with one end of the first sealing member close to the adjusting rod, and the other end of the first elastic member is connected with the inner bottom wall of the adjusting cylinder. A first placement cavity is opened in the first sealing member, a second placement cavity is opened at one end of the adjusting rod close to the first sealing member, a second sealing member is hermetically and slidably connected in the first placement cavity, a limiting rod is fixedly connected to one end of the second sealing member close to the adjusting rod, a second elastic member is arranged in the second placement cavity, one end of the second elastic member is connected with one end of the limiting rod extending into the second placement cavity, and the other end of the second elastic member is connected with the inner bottom wall of the second placement cavity.

[0008] Preferably, the first placement cavity is communicated with the second placement cavity. A limiting long hole is opened on the outer wall of one end of the adjusting rod close to the first sealing member. A limiting column is fixedly connected to the outer wall of one end of the limiting rod located in the second placement cavity. One end of the limiting column extending into the limiting long hole is slidably connected with the inner wall of the limiting long hole. The number of the fastening members is two, and both ends of the flow guiding member and the spinneret member are respectively fixedly connected with the fastening members. A sliding resistor is arranged at one end of each fastening member opposite to each other, and one end of each adjusting rod extending out of the fastening member is fixedly connected with the sliding piece of the corresponding sliding resistor, wherein the sliding resistor is used to reflect the pressure condition of the molten plastic in the flow guiding member and the spinneret member.

[0009] Preferably, the number of the flow guiding members is two, and they are arranged in a mirror image. On the opposite sides of each flow guiding member, a main flow channel and a sub-flow channel are respectively formed. At both ends of each flow guiding member, placement grooves are respectively formed. Each flow guiding member is provided with a guiding groove. The placement groove is used for placing an adjusting cylinder. The outer wall of the first sealing member is in sealed sliding connection with the inner wall of the guiding groove. The bottoms of the two flow guiding members are fixedly connected to the top of the spinneret. A sub-flow groove is formed in the spinneret. The output end of the extruder is respectively connected to the main flow channel formed in the flow guiding member through a metering pump and a pipeline.

[0010] Preferably, a plurality of evenly distributed spinneret holes are formed at the bottom of the spinneret. Each spinneret hole is communicated with the sub-flow groove. A filtering member is arranged in the spinneret. A plurality of evenly distributed filtering holes are formed in the filtering member. The filtering member is respectively communicated with the sub-flow groove and the sub-flow channel through the filtering holes. A guiding member is fixedly connected to the bottom of the spinneret. The number of the guiding members is two and they are arranged in a mirror image along the spinneret holes.

[0011] Preferably, ventilation grooves are formed at the top of the spinneret in a symmetric distribution along the spinneret holes. A plurality of evenly distributed through holes are formed at the bottom of the spinneret. Each through hole is communicated with the corresponding ventilation groove. An air delivery hole is formed in each flow guiding member. A plurality of evenly distributed communication holes are formed in each flow guiding member. The communication holes are respectively communicated with the air delivery hole and the corresponding ventilation groove.

[0012] Preferably, a plurality of air storage grooves are formed on the outer wall of each flow guiding member. A plurality of holes communicated with the air delivery hole are formed in each air storage groove.

[0013] Preferably, the number of the ventilation members is two. One end of each ventilation member is fixedly connected to the outer wall of the corresponding flow guiding member. The ventilation member is used for sealing the air storage groove. Each ventilation member is provided with a plurality of ventilation pipes. Each ventilation pipe is communicated with the corresponding air storage groove.

[0014] Preferably, two air inlet pipes are respectively arranged at both ends of the meltblown main body. Each air inlet pipe is communicated with a plurality of ventilation pipes through a pipeline. One end of each air inlet pipe extending out of the meltblown main body is connected to the output end of the warm air device through a pipeline.

[0015] Preferably, the equipment main body includes a controller. The controller is respectively electrically connected to the sliding resistor, the control motor of the extruder, the driving motor of the mesh belt receiver and the warm air device.

[0016] The beneficial effects of the present invention are as follows:

[0017] 1. The present invention adjusts the pressure of the high-pressure molten plastic in the shunt channel through the compression and relaxation of the first elastic member, thereby preventing the problem that the plastic fibers ejected through the spinneret holes have uneven diameters due to pressure fluctuations in the molten plastic in the shunt channel.

[0018] 2. In the later stage of production, the present invention adjusts the movement of the adjusting rod and the change in the resistance value of the sliding resistor. Through the feedback of the sliding resistor, the controller finely adjusts the driving motor of the mesh belt receiver, thereby preventing the molten plastic ejected through the spinneret holes from accumulating too much or too little on the mesh belt receiver under the action of hot air due to pressure fluctuations in the shunt channel, and preventing the problem of wrinkles in the meltblown cloth.

[0019] 3. The present invention compensates for and finely adjusts the pressure of the molten plastic located in the shunt channel through the compression and relaxation of the second elastic member, thereby ensuring the stability of the pressure of the molten plastic ejected through the spinneret holes at both ends of the spinneret member, ensuring the uniformity of the diameter of the molten plastic after being stretched by warm air, and preventing the problem that the controller frequently adjusts the conveying speed of the mesh belt receiver due to the large compression and relaxation distance and adjustment force of the first elastic member, resulting in uneven spraying limits of the meltblown cloth. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 It is a schematic diagram of the partial structure of the present invention.

[0022] Figure 3 It is a schematic diagram of the structure of the mesh belt receiver of the present invention.

[0023] Figure 4 It is a schematic diagram of the meltblown main body structure of the present invention.

[0024] Figure 5 It is a sectional view of the meltblown main body of the present invention.

[0025] Figure 6 It is a schematic diagram of the shunt channel structure of the present invention.

[0026] Figure 7 It is a sectional view of the spinneret member of the present invention at the through hole.

[0027] Figure 8 It is a sectional view of the flow guiding member of the present invention at the hole.

[0028] Figure 9 It is a sectional view of the adjusting cylinder of the present invention.

[0029] Figure 10 It is an exploded view of the spinneret member of the present invention.

[0030] Figure 11 This is an exploded view of the regulating cylinder of the present invention.

[0031] The accompanying drawings are:

[0032] 1. Equipment body; 101. Fixing frame;

[0033] 2. Extrusion assembly; 21. Extruder;

[0034] 3. Meltblown assembly; 31. Meltblown body; 311. Air inlet pipe; 32. Flow guide; 321. Main channel; 322. Branch channel; 323. Placement slot; 324. Guide slot; 325. Air delivery hole; 326. Connecting hole; 327. Air storage tank; 328. Hole; 33. Spinneret; 331. Branch slot; 332. Spinneret hole; 333. Filter; 334. Ventilation slot; 335. Through hole; 34. Derivative element; 35. Fastener; 36. Ventilation element; 361. Ventilation pipe;

[0035] 4. Adjustment assembly; 41. Adjustment cylinder; 42. First sealing member; 421. First placement cavity; 43. Adjustment rod; 431. Second placement cavity; 432. Limiting slot; 44. First elastic member; 45. Second sealing member; 46. Limiting rod; 461. Limiting post; 47. Second elastic member;

[0036] 5. Forming assembly; 51. Mesh belt receiver; 52. Trimming and winding machine. DETAILED DESCRIPTION

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work shall fall within the scope of protection of the present invention.

[0038] Example 1

[0039] See also Figures 1 to 11, A high-performance sound-absorbing and heat-insulating material production system according to an embodiment of the present invention includes a device main body 1. The device main body 1 includes a fixing frame 101, and further includes an extrusion assembly 2, a meltblown assembly 3, an adjustment assembly 4, and a forming assembly 5. The extrusion assembly 2 includes an extruder 21 fixed to the top of the fixing frame 101. The extruder 21 is a prior art and will not be described in detail here. The extruder 21 includes a filtering assembly. The meltblown assembly 3 includes a meltblown main body 31 fixed to the bottom of the fixing frame 101. A guiding member 32, a spinneret member 33, a guiding-out member 34, a fastening member 35, and a ventilation member 36 are respectively arranged in the meltblown main body 31. The adjustment assembly 4 includes an adjustment cylinder 41 arranged in the meltblown assembly 3. A first seal 42 is hermetically and slidably connected in the adjustment cylinder 41. One end of the first seal 42 extending into the adjustment cylinder 41 is fixedly connected to an adjustment rod 43. The forming assembly 5 includes a mesh belt receiver 51 arranged at the bottom of the meltblown main body 31. The mesh belt receiver 51 is a prior art and will not be described in detail here. One end of the mesh belt receiver 51 away from the meltblown main body 31 is provided with a trimming and winding machine 52. The trimming and winding machine 52 is a prior art and will not be described in detail here.

[0040] Please refer to Figure 5 , Figure 6 , Figure 9 and Figure 11 , a first elastic member 44 is sleeved on the outer wall of the adjustment rod 43 in the adjustment cylinder 41. The first elastic member 44 is a spring. One end of the first elastic member 44 is connected to one end of the first seal 42 close to the adjustment rod 43, and the other end of the first elastic member 44 is connected to the inner bottom wall of the adjustment cylinder 41. A first placement cavity 421 is opened in the first seal 42. One end of the adjustment rod 43 close to the first seal 42 is provided with a second placement cavity 431. A second seal 45 is hermetically and slidably connected in the first placement cavity 421. One end of the second seal 45 close to the adjustment rod 43 is fixedly connected to a limiting rod 46. A second elastic member 47 is arranged in the second placement cavity 431. The second elastic member 47 is a spring. One end of the second elastic member 47 is connected to one end of the limiting rod 46 extending into the second placement cavity 431, and the other end of the second elastic member 47 is connected to the inner bottom wall of the second placement cavity 431. The first placement cavity 421 is communicated with the second placement cavity 431. A limiting long hole 432 is opened on the outer wall of one end of the adjustment rod 43 close to the first seal 42. One end of the limiting rod 46 located in the second placement cavity 431 is fixedly connected with a limiting column 461 on the outer wall. One end of the limiting column 461 extending into the limiting long hole 432 is slidably connected with the inner wall of the limiting long hole 432. The number of the fastening members 35 is two, and both ends of the guiding member 32 and the spinneret member 33 are respectively fixedly connected to the fastening members 35. A sliding resistor is arranged at one end of each fastening member 35 facing each other. One end of each adjustment rod 43 extending out of the fastening member 35 is fixedly connected to the sliding piece of the corresponding sliding resistor. The sliding resistor is used to reflect the pressure condition of the molten plastic in the guiding member 32 and the spinneret member 33.

[0041] Please refer to Figure 5 、 Figure 6 、and Figure 8 As shown in FIGS. Figure 7 and Figure 10 , the number of the flow guiding members 32 is two and they are arranged in a mirror image. A main flow channel 321 and a branch flow channel 322 are respectively formed on one side of each flow guiding member 32 opposite to each other. Placing grooves 323 are respectively formed at both ends of each flow guiding member 32. A guiding groove 324 is formed on each flow guiding member 32. The placing groove 323 is used for placing the adjusting cylinder 41. The outer wall of the first sealing member 42 is in sealed sliding connection with the inner wall of the guiding groove 324. The bottoms of the two flow guiding members 32 are fixedly connected to the top of the spinneret member 33. A branch flow groove 331 is formed in the spinneret member 33. The output ends of the extruder 21 are respectively communicated with the main flow channels 321 formed in the flow guiding members 32 through a metering pump and a pipeline. Combining Figure 7 and Figure 8 , a plurality of evenly distributed spinneret holes 332 are formed at the bottom of the spinneret member 33. Each spinneret hole 332 is communicated with the branch flow groove 331. A filtering member 333 is arranged in the spinneret member 33. A plurality of evenly distributed filtering holes are formed in the filtering member 333. The filtering member 333 is respectively communicated with the branch flow groove 331 and the branch flow channel 322 through the filtering holes. A guiding member 34 is fixedly connected to the bottom of the spinneret member 33. It should be noted that after the guiding member 34 is assembled and fixed to the bottom of the spinneret member 33, there is a gap between the guiding portion of the guiding member 34 and the bottom of the spinneret member 33. For details, please refer to Figure 8 and Figure 10 , the number of the guiding members 34 is two and they are arranged in a mirror image along the spinneret holes 332. Venting grooves 334 are formed at the top of the spinneret member 33 in a symmetric distribution along the spinneret holes 332. A plurality of evenly distributed through holes 335 are formed at the bottom of the spinneret member 33. Each through hole 335 is communicated with the corresponding venting groove 334. An air inlet hole 325 is formed in each flow guiding member 32. A plurality of evenly distributed communication holes 326 are formed in each flow guiding member 32. The communication holes 326 are respectively communicated with the air inlet hole 325 and the corresponding venting groove 334. A plurality of air storage grooves 327 are formed on the outer wall of each flow guiding member 32. A plurality of holes 328 communicated with the air inlet hole 325 are formed in each air storage groove 327. Combining

[0042] Please refer to Figures 1 to 5, two intake pipes 311 are respectively arranged at both ends of the meltblown main body 31. Each intake pipe 311 is communicated with a plurality of vent pipes 361 through pipes. One end of each intake pipe 311 extending out of the meltblown main body 31 is connected to the output end of the warm air device through a pipe. The device main body 1 includes a controller, and the controller is electrically connected to a sliding resistor, a control motor of the extruder 21, a driving motor of the mesh belt receiver 51, and the warm air device respectively.

[0043] During use, first, the plastic to be melted is put into the feeding barrel of the extruder 21, and a suitable heating temperature is set according to the characteristics of the added plastic. After the plastic in the extruder 21 is melted, the plastic in the extruder 21 passes through the inside of the extruder 21. The screw motor of the extruder 21 is powered on through the controller, so that the molten plastic in the extruder 21 is conveyed to the output end of the extruder 21 under the continuous rotation of the screw. The high-pressure molten plastic enters the filtering component through the output end of the extruder 21. The filtering component filters the plastic extruded by the extruder 21 to prevent impurities from being conveyed to the next working step. The filtered molten plastic enters the metering pump through the connecting pipe. The high-pressure molten plastic enters the main flow channel 321 opened in the flow guiding part 32 through the metering pump and the conveying pipe. The high-pressure molten plastic in the main flow channel 321 is dispersed into the branch flow channels 322. The molten plastic enters the branch flow grooves 331 opened in the spinneret 33 through the branch flow channels 322 and the filtering parts 333 respectively. The high-pressure molten plastic in the branch flow grooves 331 enters a plurality of spinneret holes 332 respectively. The high-pressure molten plastic is ejected through a plurality of evenly arranged spinneret holes 332. At the same time, the warm air device continuously conveys high-temperature gas to the plurality of intake pipes 311 through pipes. The high-temperature gas in the intake pipes 311 enters a plurality of vent pipes 361 through pipes respectively. The high-temperature gas in the vent pipes 361 enters the air storage tank 327 through the vent part 36. The high-temperature gas in the air storage tank 327 enters the air delivery holes 325 through the holes 328. The high-temperature gas in the air delivery holes 325 enters the air vent groove 334 through the communication holes 326. The high-temperature gas in the air vent groove 334 enters the gap between the guiding part 34 and the spinneret 33 through a plurality of through holes 335. The high-temperature gas is discharged through the gap between the guiding part 34 and the spinneret 33. While the high-temperature gas is discharged through the gap between the guiding part 34 and the spinneret 33, the molten plastic ejected through the plurality of spinneret holes 332 is further stretched and thinned under the action of the hot air, so that the diameter of the molten plastic stretched by the hot air is within a suitable range. At the same time, the molten plastic stretched by the hot air continuously gathers towards the mesh belt receiver 51 under the action of a strong air flow. At the same time, through the continuous conveying of the conveyor belt of the mesh belt receiver 51, the molten plastic stretched by the hot air is cooled into a net, and finally, it is cut and wound by the edge cutting and winding machine 52 to complete the production of the sound-absorbing and heat-insulating material.

[0044] Embodiment 2

[0045] When used on the basis of the above embodiments, it is found that although the production of the sound-absorbing and heat-insulating material can be achieved through the above embodiments, there are still problems that due to the presence of air bubbles in the molten plastic in the extruder 21, the pressure is unstable during the transportation of the extruder 21, resulting in uneven diameters of the molten plastic fibers. Therefore, further improvements are made on the basis of the above embodiments.

[0046] When used on the basis of the above embodiments, the high-pressure molten plastic enters the sub-runner 322 through the main runner 321. At the same time, under the high pressure of the high-pressure molten plastic, the high-pressure molten plastic squeezes the first seal 42, and the high-pressure molten plastic squeezes the first seal 42 into the adjustment cylinder 41 for storage. At the same time, while the first seal 42 moves in the adjustment cylinder 41, it continuously squeezes the first elastic member 44, and the high-pressure molten plastic stores energy through the first elastic member 44. At the same time, the movement of the first seal 42 drives the adjustment rod 43 to move synchronously. While the adjustment rod 43 moves, it drives the slide of the sliding resistor to move. While the slide moves, the resistance value of its sliding resistor also changes accordingly. The controller analyzes the pressure and flow condition of the high-pressure molten plastic in the sub-runner 322 according to the change in the resistance value of the sliding resistor.

[0047] When the high-pressure molten plastic enters the sub-runner 322 at a high speed through the main runner 321, the moving distance of the adjustment rod 43 in the adjustment cylinder 41 at both ends of the flow guide member 32 can be compared and analyzed with the resistance value fed back to the controller by the sliding resistor. It is possible to judge the flow condition of the high-pressure molten plastic in the sub-runner 322 through the change in the resistance value of the sliding resistor. At the same time, the high-pressure molten plastic in the sub-runner 322 stores energy through the adjustment cylinder 41, preventing poor fluidity of the molten plastic in the area far from both ends of the main runner 321 in the sub-runner 322, resulting in the accumulation of molten plastic due to poor plastic fluidity at the spinneret holes 332. Poor fluidity of the molten plastic will cause some plastics to stay in the sub-runner 322 and the spinneret holes 332 for too long, resulting in chemical reactions such as overheating and decomposition, and the corrosive substances generated will corrode the nozzle material, further damaging the nozzle.

[0048] When the pressure of the high-pressure molten plastic output by the extruder 21 fluctuates, the pressure of the high-pressure molten plastic in the sub-runner 322 is adjusted through the compression and relaxation of the first elastic member 44, thereby preventing uneven diameters of the plastic fibers ejected through the spinneret holes 332 due to pressure fluctuations of the molten plastic in the sub-runner 322.

[0049] Meanwhile, by adjusting the movement of the adjusting rod 43 and the change in the resistance value of the sliding resistor, in the later stage of production, through the feedback of the sliding resistor, the driving motor of the mesh belt receiver 51 is finely adjusted by the controller, so as to prevent the molten plastic ejected through the spinneret holes 332 from accumulating too much or too little on the mesh belt receiver 51 under the action of hot air due to the pressure fluctuation in the sub-runner 322, and prevent the problem of wrinkles in the meltblown fabric.

[0050] Embodiment III

[0051] Based on the above embodiments, in actual use, it is found that although the pressure of the high-pressure molten plastic in the sub-runner 322 can be adjusted by the expansion and compression of the first elastic member 44, and at the same time, in the middle and later stages of production, the adjusting rod 43 drives the sliding resistor slider, and the change in the resistance value of the sliding resistor is fed back to the controller, and the conveying speed of the mesh belt receiver 51 is adjusted by the controller, while ensuring that the limiting diameter is uniform during meltblowing and preventing wrinkles in the meltblown fabric, due to the large expansion and compression distance and adjustment force of the first elastic member 44, fine adjustment cannot be performed, resulting in the controller frequently adjusting the conveying speed of the mesh belt receiver 51, and the problem of uneven jet limiting of the meltblown fabric appears, affecting the quality and sound absorption and heat insulation effect of the meltblown fabric. Therefore, this embodiment is specifically invented based on the above embodiments.

[0052] When in use based on the above embodiments, when the high-pressure molten plastic enters the sub-runner 322 through the main runner 321, the high-pressure molten plastic squeezes the second seal 45, causing the second seal 45 to move in the first placement cavity 421 under the extrusion of the high-pressure molten plastic. While the second seal 45 moves in the first placement cavity 421, the high-pressure molten plastic enters the first placement cavity 421 for storage. At the same time, while the second seal 45 moves in the first placement cavity 421, it drives the limiting rod 46 to move in the second placement cavity 431 opened in the adjusting rod 43. While the limiting rod 46 moves in the second placement cavity 431, it drives the limiting column 461 to move in the limiting long hole 432. At the same time, the limiting rod 46 continuously squeezes the second elastic member 47. When the second elastic member 47 is compressed to the maximum limit position, with the continuous extrusion of the high-pressure molten plastic in the sub-runner 322, the high-pressure molten plastic squeezes the first seal 42, and the high-pressure molten plastic squeezes the first seal 42 into the adjusting cylinder 41 for storage. At the same time, while the first seal 42 moves in the adjusting cylinder 41, it continuously squeezes the first elastic member 44, and the high-pressure molten plastic stores energy through the first elastic member 44. At the same time, the movement of the first seal 42 drives the adjusting rod 43 to move synchronously. While the adjusting rod 43 moves, it drives the slider of the sliding resistor to move. While the slider moves, the resistance value of its sliding resistor also changes accordingly. The controller analyzes the change in the pressure of the high-pressure molten plastic in the sub-runner 322 according to the change in the resistance value of the sliding resistor.

[0053] When there are minor pressure fluctuations in the molten plastic within the runner 322, through the compression and relaxation of the second elastic member 47, pressure compensation and fine adjustment are performed on the molten plastic within the runner 322, thereby ensuring the stability of the pressure of the molten plastic ejected through the spinneret holes 332 at both ends of the spinneret member 33, ensuring the uniformity of the diameter of the molten plastic after being stretched by warm air, and preventing the problem that due to the large relaxation and compression distance and adjustment force of the first elastic member 44, fine adjustment cannot be performed, resulting in the controller frequently adjusting the conveying speed of the mesh belt receiver 51, and uneven jet limiting of the meltblown cloth occurring.

[0054] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes, should be covered within the protection scope of the present invention.

Claims

1. A production system for a high-performance sound-absorbing and heat-insulating material, comprising a main body of the device (1), wherein the main body of the device (1) includes a fixing frame (101), characterized in that, It further includes: An extrusion assembly (2), the extrusion assembly (2) includes an extruder (21) fixed to the top of a fixing frame (101); A meltblown assembly (3), the meltblown assembly (3) includes a meltblown main body (31) fixed to the bottom of the fixing frame (101), and a flow guide member (32), a spinneret member (33), a lead-out member (34), a fastener (35), and a vent member (36) are respectively arranged in the meltblown main body (31); An adjustment assembly (4), the adjustment assembly (4) includes an adjustment cylinder (41) arranged in the meltblown assembly (3), a first seal member (42) is hermetically and slidably connected in the adjustment cylinder (41), and one end of the first seal member (42) extending into the adjustment cylinder (41) is fixedly connected to an adjustment rod (43); A forming assembly (5), the forming assembly (5) includes a mesh belt receiver (51) arranged at the bottom of the meltblown main body (31), and a trimming and winding machine (52) is arranged at one end of the mesh belt receiver (51) away from the meltblown main body (31); A first elastic member (44) is sleeved on the outer wall of the adjustment rod (43) in the adjustment cylinder (41), one end of the first elastic member (44) is connected to one end of the first seal member (42) close to the adjustment rod (43), the other end of the first elastic member (44) is connected to the inner bottom wall of the adjustment cylinder (41), a first placement cavity (421) is formed in the first seal member (42), a second placement cavity (431) is formed at one end of the adjustment rod (43) close to the first seal member (42), a second seal member (45) is hermetically and slidably connected in the first placement cavity (421), a limiting rod (46) is fixedly connected to one end of the second seal member (45) close to the adjustment rod (43), a second elastic member (47) is arranged in the second placement cavity (431), one end of the second elastic member (47) is connected to one end of the limiting rod (46) extending into the second placement cavity (431), and the other end of the second elastic member (47) is connected to the inner bottom wall of the second placement cavity (431); The first placement cavity (421) is communicated with the second placement cavity (431), a limiting long hole (432) is formed in the outer wall of one end of the adjustment rod (43) close to the first seal member (42), a limiting column (461) is fixedly connected to the outer wall of one end of the limiting rod (46) located in the second placement cavity (431), and the outer wall of the end of the limiting column (461) extending into the limiting long hole (432) is slidably connected to the inner wall of the limiting long hole (432). The number of the fasteners (35) is two, and both ends of the flow guide member (32) and the spinneret member (33) are respectively fixedly connected to the fasteners (35). A sliding resistor is arranged at one end of each fastener (35) opposite to each other, and one end of each adjustment rod (43) extending out of the fastener (35) is fixedly connected to the sliding piece of the corresponding sliding resistor, wherein the sliding resistor is used to reflect the pressure condition of the molten plastic in the flow guide member (32) and the spinneret member (33).

2. The production system of a high-performance sound-absorbing and heat-insulating material according to claim 1, characterized in that: The number of the flow guiding members (32) is two, and they are arranged in a mirror image. On the opposite sides of each flow guiding member (32), a main flow channel (321) and a sub-flow channel (322) are respectively formed. At both ends of each flow guiding member (32), placement grooves (323) are respectively formed. Each flow guiding member (32) is provided with a guiding groove (324). The placement groove (323) is used for placing the adjusting cylinder (41). The outer wall of the first sealing member (42) is in sealed sliding connection with the inner wall of the guiding groove (324). The bottoms of the two flow guiding members (32) are fixedly connected to the top of the spinneret member (33). A sub-flow groove (331) is formed in the spinneret member (33). The output end of the extruder (21) is respectively communicated with the main flow channel (321) formed in the flow guiding member (32) through a metering pump and a pipeline.

3. The high-performance sound-absorbing and heat-insulating material production system according to claim 2, characterized in that: A plurality of evenly distributed spinneret holes (332) are formed at the bottom of the spinneret member (33). Each spinneret hole (332) is communicated with the sub-flow groove (331). A filtering member (333) is arranged in the spinneret member (33). A plurality of evenly distributed filtering holes are formed in the filtering member (333). The filtering member (333) is respectively communicated with the sub-flow groove (331) and the sub-flow channel (322) through the filtering holes. A guiding member (34) is fixedly connected to the bottom of the spinneret member (33). The number of the guiding members (34) is two and they are arranged in a mirror image along the spinneret holes (332).

4. A high-performance sound-absorbing and heat-insulating material production system according to claim 3, characterized in that: Ventilation grooves (334) symmetrically distributed along the spinneret holes (332) are formed at the top of the spinneret member (33). A plurality of evenly distributed through holes (335) are formed at the bottom of the spinneret member (33). Each through hole (335) is communicated with the corresponding ventilation groove (334). An air inlet hole (325) is formed in each flow guiding member (32). A plurality of evenly distributed communication holes (326) are formed in each flow guiding member (32). The communication holes (326) are respectively communicated with the air inlet hole (325) and the corresponding ventilation groove (334).

5. The production system of a high-performance sound-absorbing and heat-insulating material according to claim 4, characterized in that: A plurality of air storage grooves (327) are formed on the outer wall of each flow guiding member (32). A plurality of holes (328) communicated with the air inlet hole (325) are formed in each air storage groove (327).

6. The production system of a high-performance sound-absorbing and heat-insulating material according to claim 5, characterized in that: The number of the ventilation members (36) is two. One end of each ventilation member (36) is fixedly connected to the outer wall of the corresponding flow guiding member (32). The ventilation member (36) is used for blocking the air storage groove (327). Each ventilation member (36) is provided with a plurality of ventilation pipes (361). Each ventilation pipe (361) is communicated with the corresponding air storage groove (327).

7. A high-performance sound-absorbing and heat-insulating material production system according to claim 6, characterized in that: Two air inlet pipes (311) are respectively arranged at both ends of the meltblown main body (31). Each air inlet pipe (311) is communicated with a plurality of ventilation pipes (361) through a pipeline. One end of each air inlet pipe (311) extending out of the meltblown main body (31) is connected to the output end of the warm air device through a pipeline.

8. A high-performance sound-absorbing and heat-insulating material production system according to claim 7, characterized in that: The device main body (1) includes a controller, and the controller is electrically connected to a sliding resistor, a control motor of an extruder (21), a driving motor of a mesh belt receiver (51), and a warm air device respectively.

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