A needle-punching device for graphite felt production and its usage method

Abstract

This invention relates to the field of graphite felt production technology, specifically to a needle-punching device for graphite felt production. The device includes a fixed frame, with a conveyor frame and a needle-punching frame at the top. A pre-treatment mechanism is located at the top of the conveyor frame, and a needle-punching mechanism is located inside the needle-punching frame. Before needle-punching the graphite felt, this invention uses a cleaning roller to clean any curled material from the graphite felt, preventing excessive curled material from affecting the subsequent needle-punching effect and causing material to adhere to the needle-punching structure during the process. This significantly improves the needle-punching effect on the graphite felt. Furthermore, the pressure plates on both sides of the bottom of the needle-punching plate limit the graphite felt. Even when the needle-punching plate detaches from the graphite felt surface, the pressure plates still limit the needle-punching position on both sides of the graphite felt, effectively preventing the graphite felt from being lifted when detached from the needle-punching plate, thus significantly improving the needle-punching effect on the graphite felt.

Description

Technical Field

[0001] This invention relates to the field of graphite felt production technology, specifically to a needle-punching device for graphite felt production and its usage method. Background Technology

[0002] Graphite felt is classified into three types based on the raw material used: pitch-based graphite felt, polyacrylonitrile-based graphite felt, and viscose-based graphite felt. Viscose-based graphite felt is primarily used as insulation material for high-temperature furnaces. Viscose-based fiber graphite felt is made from viscose-based short fiber needle-punched felt as raw material, undergoing pre-oxidation, low-temperature carbonization, high-temperature carbonization, and graphitization treatment. A needle-punching machine is a blanket-forming device that compacts and needle-punches refractory fiber blanket blanks of a certain thickness to weave them into refractory fiber blankets. Graphite felt typically requires needle-punching during processing.

[0003] Currently, graphite felt requires needle punching during the production process. However, the presence of curled fibers on the surface of the graphite felt can negatively impact the final result of the needle punching process. Furthermore, during the needle punching process, the needles can easily lift the graphite felt after detaching from its surface, further degrading the final quality of the needle punching process.

[0004] To this end, we propose a needle-punching device for the production of graphite felt, and also disclose the method of using the needle-punching device. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a needle punching device and its usage method for graphite felt production, which solves the adverse effects of curled material on the needle punching process and the problem that graphite felt is easily lifted during the needle punching process, resulting in a deterioration in the final effect of the needle punching process.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solution: a needle punching device for graphite felt production, comprising a fixed frame, with guide frames provided on both sides of the top of the fixed frame, and guide rollers provided inside the two guide frames, a conveying frame provided on the top of the fixed frame, and a pre-treatment mechanism provided on the top of the conveying frame.

[0007] The pretreatment mechanism includes a mounting frame, which is positioned above the conveyor frame. Servo electric cylinders are arranged around the inside of the conveyor frame, and the drive ends of the four servo electric cylinders are respectively connected to the bottom of the mounting frame. Four adjusting rollers are arranged on one side inside the mounting frame, and the four adjusting rollers are all inclined inside the mounting frame. The mounting frame also includes a pressing roller and a cleaning roller, and there are two pressing rollers and two cleaning rollers inside the mounting frame.

[0008] The top of the fixed frame is also provided with a needle-punching frame, and the needle-punching frame is provided with a needle-punching mechanism inside;

[0009] The needle-punching mechanism includes a needle-punching plate, a pressure frame, and a limiting frame. The needle-punching frame has limiting frames on both sides of its inner wall, and a pressure frame is slidably arranged between the two limiting frames. The pressure frame has a needle-punching plate inside, and the bottom end of the needle-punching plate extends to the bottom of the pressure frame. The pressure frame has mounting grooves on both sides inside, and several spring frames are arranged inside each of the two mounting grooves. The pressure plates that cooperate with the mounting grooves are arranged on both sides below the pressure frame, and the tops of the two pressure plates are respectively connected to the bottom ends of the spring frames on both sides.

[0010] Preferably, a collection frame is provided inside the mounting frame and above the two cleaning rollers, and two scrapers are provided at the bottom of the collection frame. The bottom of the two scrapers are in contact with the surfaces of the two cleaning rollers respectively. A negative pressure chamber is provided inside the collection frame. Several material extraction ports are provided at the bottom of the negative pressure chamber and on one side of the two scrapers, and the interior of the several material extraction ports is connected to the interior of the negative pressure chamber.

[0011] Preferably, a dust extraction fan is provided on the top of the mounting frame, and the feed end of the dust extraction fan is connected to the inside of the negative pressure chamber through a suction pipe. A waste bin is also provided on one side of the top of the mounting frame, and the discharge end of the dust extraction fan is connected to the inside of the waste bin.

[0012] Preferably, a servo motor is provided on one side of the needle frame, and a rotating rod is provided at the output end of the servo motor through a coupling. An elliptical wheel is provided on the surface of the rotating rod, and an elliptical groove is provided inside the elliptical wheel.

[0013] Preferably, a movable column is movably arranged inside the elliptical groove, and a connecting rod is provided on the surface of the movable column. The bottom end of the connecting rod is connected to the top of the needle plate, and the surface of the connecting rod is slidably connected to the inside of the needle frame.

[0014] Preferably, a pad is provided at the bottom inside the needle-punching frame, and conveying rollers are rotatably arranged on both sides inside the pad.

[0015] Preferably, connecting frames are slidably arranged on both sides of the lower part of the pressing frame, and a locking block is provided on one side of each of the two connecting frames. The needle plate has a locking groove on both sides that cooperates with the locking block.

[0016] Preferably, the bottom of the fixed frame is provided with movable components on all four sides. The movable components include a fixed frame and movable wheels. The fixed frame is located at the bottom of the fixed frame, and the movable wheels are slidably arranged inside the fixed frame. The front of the movable wheels is provided with a slider, and the inside of the slider is provided with a movable block. Two limit blocks are movably arranged on one side of the movable block, and the fixed frame is provided with a limit groove that cooperates with the limit blocks. The front of the slider is threaded with an adjusting screw, and one end of the adjusting screw is rotatably connected to one side of the movable block.

[0017] Preferably, a push block is provided on one side inside the fixed frame, and a lifting screw is threadedly connected inside the push block. The top end of the lifting screw extends to the top of the fixed frame, and a driven gear is provided at one end of the lifting screw. An adjusting gear is rotatably provided inside the fixed frame, and the surface of the adjusting gear meshes with the surface of the driven gear.

[0018] Preferably, a method for using a needle-punching device in graphite felt production includes the following steps:

[0019] Step 1: The graphite felt is flattened by the guide rollers in the guide frame. Then the graphite felt enters the interior of the conveyor frame. The servo electric cylinder drives the entire mounting frame to descend, so that the two adjusting rollers inside the mounting frame are located on both sides of the graphite felt. The four adjusting rollers are used to straighten the position of the graphite felt in the conveyor frame.

[0020] Step 2: After correcting the deviation of the graphite felt conveyor, the graphite felt is limited and conveyed on the conveyor frame using the pressure roller. At the same time, the cleaning roller is used to clean the curled material on the graphite felt. During the rotation of the cleaning roller, the feed end of the dust extraction fan creates a negative pressure inside the negative pressure chamber through the suction pipe. The material on the surface of the cleaning roller is blocked by the scraper and enters the inside of the negative pressure chamber through the suction port. Finally, the dust extraction fan sends the material into the waste bin for centralized collection.

[0021] Step 3: The output of the servo motor drives the rotating rod to rotate inside the needle punching frame. The rotating rod drives the elliptical wheel to rotate inside the needle punching frame. The movable column in the elliptical wheel moves up and down under the drive of the elliptical groove. Then the movable column drives the connecting rod to move up and down periodically inside the needle punching frame. The needle punching frame is used to perform needle punching forming of graphite felt.

[0022] Step 4: When the needle-punching plate performs needle-punching forming on the graphite felt, the pressure plates on both sides inside the pressure frame limit the needle-punching positions of the graphite felt on both sides. When the needle-punching plate separates from the surface of the graphite felt, the pressure plates on both sides still limit the needle-punching positions of the graphite felt on both sides. Finally, the needle-punched graphite felt is sent out through the guide frame on the other side.

[0023] This invention provides a needle-punching device for graphite felt production and its method of use. Compared with the prior art, it has the following advantages:

[0024] Before needle-punching graphite felt, four adjusting rollers are used to straighten the graphite felt in the conveyor frame, preventing it from deviating during transport and thus effectively improving the needle-punching quality. After correcting the deviation during transport, pressure rollers are used to limit the graphite felt's movement on the conveyor frame, while cleaning rollers are used to clean any curled material from the graphite felt. This prevents excessive curled material from affecting the subsequent needle-punching effect and causing material to adhere to the needle-punching structure during the process, thereby significantly improving the needle-punching effect of the graphite felt.

[0025] By setting pressure frames on both sides of the needle-punching plate, and pressure plates on both sides of the pressure frames, and a spring frame on top of the pressure plates, the graphite felt on both sides of the bottom of the needle-punching plate is limited by the pressure plates during the needle-punching process. When the needle-punching plate separates from the surface of the graphite felt, the pressure plates on both sides still limit the needle-punching position of the graphite felt, thus effectively preventing the graphite felt from being lifted up when it separates from the needle-punching plate, and significantly improving the effect of the needle-punching process of graphite felt.

[0026] During the rotation of the cleaning roller, the feed end of the dust extraction fan creates negative pressure inside the negative pressure chamber through the extraction pipe. The raw material on the surface of the cleaning roller is blocked by the scraper and enters the negative pressure chamber through the extraction port. Finally, the dust extraction fan sends the raw material into the waste bin for centralized collection. This allows the cleaning roller to continuously clean the raw material on the surface of the graphite felt without the need for manual cleaning of the cleaning roller surface, thus realizing continuous processing of graphite felt. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of a needle-punching device structure for graphite felt production according to an embodiment of the present invention;

[0028] Figure 2 This is a schematic diagram of the pretreatment mechanism structure according to an embodiment of the present invention;

[0029] Figure 3 This is a schematic diagram of the internal structure of the mounting frame and collection frame according to an embodiment of the present invention;

[0030] Figure 4 This is a schematic diagram of the needle holder and needle mechanism structure according to an embodiment of the present invention;

[0031] Figure 5 This is a schematic diagram of the elliptical wheel and connecting rod structure according to an embodiment of the present invention;

[0032] Figure 6 This is a schematic diagram of the needle-punching plate and pressure frame structure according to an embodiment of the present invention;

[0033] Figure 7 This is a schematic diagram of the needle-punching plate, pressure frame, and pressure plate structure according to an embodiment of the present invention;

[0034] Figure 8 This is a schematic diagram of the moving component structure according to an embodiment of the present invention;

[0035] Figure 9 This is a schematic diagram of the internal structure of the moving component according to an embodiment of the present invention;

[0036] Figure 10 This is a schematic diagram of the internal structure of the slider in an embodiment of the present invention.

[0037] In the diagram, 10 is the fixed frame; 20 is the guide frame; 30 is the guide roller; 40 is the conveyor frame; 50 is the pretreatment mechanism; 60 is the needle-punching frame; 70 is the needle-punching mechanism; 80 is the moving component; 11 is the mounting frame; 12 is the servo cylinder; 13 is the adjusting roller; 14 is the pressure roller; 15 is the cleaning roller; 16 is the collecting frame; 17 is the scraper; 18 is the negative pressure chamber; 19 is the dust extraction fan; 110 is the extraction pipe; 111 is the waste bin; 21 is the needle-punching plate; 22 is the pressure frame; 23 is the limit frame; 24 is the servo motor; 25 is the rotating rod; 26 is the elliptical wheel; 27 is the elliptical groove; 28 is the movable column; 29 is the connecting rod; 210 is the pad; 31 is the mounting groove; 32 is the spring frame; 33 is the... 34. Pressure plate; 35. Connecting frame; 36. Locking block; 47. Locking groove; 48. Fixing frame; 49. Moving wheel; 40. Slider; 410. Movable block; 42. Limiting block; 43. Limiting groove; 44. Adjusting screw; 45. Pushing block; 46. Lifting screw; 47. Driven gear; 48. Adjusting gear. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] Example 1

[0040] Please see Figures 1 to 10 As shown, a needle punching device for graphite felt production includes a fixed frame 10, with guide frames 20 on both sides of the top of the fixed frame 10, and guide rollers 30 are provided inside the two guide frames 20.

[0041] A conveyor frame 40 is provided on the top of the fixed frame 10, and a pre-processing mechanism 50 is provided on the top of the conveyor frame 40;

[0042] The top of the fixed frame 10 is also provided with a needle-punching frame 60, and the needle-punching frame 60 is provided with a needle-punching mechanism 70 inside;

[0043] The conveyor frame 40 and the needle punching frame 60 are both located between two guide frames 20, and the conveyor frame 40 is located on the left side of the needle punching frame 60. The conveyor frame 40 is equipped with a conveyor belt for conveying graphite felt inside.

[0044] The fixed frame 10 is equipped with four movable components 80 around its bottom. The four movable components 80 facilitate the overall displacement of the fixed frame 10, thereby improving the portability of the needle-punching device.

[0045] Furthermore, the pretreatment mechanism 50 includes a mounting frame 11, which is positioned above the conveyor frame 40. Servo cylinders 12 are arranged around the perimeter of the conveyor frame 40, and the drive ends of the four servo cylinders 12 are respectively connected to the perimeter of the bottom of the mounting frame 11. Four adjusting rollers 13 are arranged on one side inside the mounting frame 11, and all four adjusting rollers 13 are inclined and located inside the mounting frame 11. A pressure roller 14 and a cleaning roller 15 are also arranged inside the mounting frame 11, and the pressure roller 14 and the cleaning roller 15 are located within the mounting frame 11. The mounting frame 11 has two internal components, with two cleaning rollers 15 positioned between two pressing rollers 14, and the bottom of the two cleaning rollers 15 being higher than the bottom of the two pressing rollers 14. Inside the mounting frame 11, above the two cleaning rollers 15, is a collection frame 16, with two scrapers 17 at the bottom of the collection frame 16. The bottom of the two scrapers 17 contacts the surface of the two cleaning rollers 15. A negative pressure chamber 18 is formed inside the collection frame 16, and several extraction ports are formed at the bottom of the negative pressure chamber 18 and on one side of the two scrapers 17. The interior of each extraction port is connected to the interior of the negative pressure chamber 18. A dust collector 19 is positioned at the top of the mounting frame 11, and the inlet of the dust collector 19 is connected to the interior of the negative pressure chamber 18 via a extraction pipe 110. A waste bin 111 is also positioned on one side of the top of the mounting frame 11, and the outlet of the dust collector 19 is connected to the interior of the waste bin 111.

[0046] It should be noted that before the graphite felt is needle-punched, the graphite felt is flattened by the guide roller 30 in the guide frame 20. Then the graphite felt enters the interior of the conveyor frame 40. The drive end of the servo electric cylinder 12 drives the mounting frame 11 to descend as a whole, so that the two adjusting rollers 13 inside the mounting frame 11 are located on both sides of the graphite felt. The four adjusting rollers 13 are used to straighten the position of the graphite felt in the conveyor frame 40, so as to prevent the graphite felt from deviating during the conveying process, thereby effectively improving the needle-punching quality of the graphite felt.

[0047] After correcting the deviation of the graphite felt conveyor, the pressure roller 14 is used to limit the conveying of the graphite felt on the conveyor frame 40. At the same time, the cleaning roller 15 is used to clean the curled material on the graphite felt to avoid excessive curled material affecting the subsequent needle punching effect and causing the material to adhere to the needle punching structure during the needle punching process. During the rotation of the cleaning roller 15, the feed end of the dust extraction fan 19 creates a negative pressure inside the negative pressure chamber 18 through the extraction pipe 110. The material on the surface of the cleaning roller 15 is blocked by the scraper 17 and enters the interior of the negative pressure chamber 18 through the extraction port. Finally, the dust extraction fan 19 sends the material into the waste bin 111 for centralized collection, so that the cleaning roller 15 can continuously clean the material on the surface of the graphite felt without the need for manual cleaning of the surface of the cleaning roller 15, thereby realizing continuous processing of graphite felt.

[0048] Furthermore, the needle-punching mechanism 70 includes a needle-punching plate 21, a pressure frame 22, and a limiting frame 23. Limiting frames 23 are provided on both sides of the inner wall of the needle-punching frame 60, and a pressure frame 22 is slidably arranged between the two limiting frames 23. The needle-punching plate 21 is arranged inside the pressure frame 22, and the bottom end of the needle-punching plate 21 extends below the pressure frame 22. A servo motor 24 is provided on one side of the needle-punching frame 60, and a rotating rod 25 is provided at the output end of the servo motor 24 via a coupling. An elliptical wheel 26 is provided on the surface of the rotating rod 25, and an elliptical groove 27 is formed inside the elliptical wheel 26. A movable column 28 is movably arranged inside the elliptical groove 27, and a connecting rod 29 is provided on the surface of the movable column 28. The bottom end of the connecting rod 29 is connected to the top of the needle-punching plate 21, and the surface of the connecting rod 29 is slidably connected to the interior of the needle-punching frame 60. The connecting rod 29 is located inside the needle-punching frame 60 and slides up and down within the limiting frame. The servo motor 24 drives the rotating rod 25 to rotate inside the needle punching frame 60. The rotating rod 25 drives the elliptical wheel 26 to rotate inside the needle punching frame 60. The movable column 28 in the elliptical wheel 26 moves up and down under the drive of the elliptical groove 27. Then the movable column 28 drives the connecting rod 29 to move up and down periodically inside the needle punching frame 60. The needle punching frame 60 completes the needle punching forming process on the graphite felt. A pad 210 is also provided at the bottom inside the needle punching frame 60, and conveying rollers are rotatably installed on both sides inside the pad 210.

[0049] Furthermore, during the needle-punching process, the needle-punching plate 21 easily lifts the graphite felt after detaching from its surface, resulting in a deterioration in the needle-punching effect. The pressure frame 22 has mounting grooves 31 on both sides, and each of the two mounting grooves 31 contains several spring frames 32. Pressure plates 33 that cooperate with the mounting grooves 31 are located on both sides below the pressure frame 22. The tops of the two pressure plates 33 are connected to the bottom ends of the spring frames 32. Each spring frame 32 consists of a fixed rod, a sliding rod, and a spring. The sliding rod has a spring sleeve on its surface, and its top end slides inside the fixed rod. The bottom end of the sliding rod is connected to the top of the pressure plate 33. The two ends of the spring are connected to the top of the pressure plate 33 and the bottom end of the fixed rod, respectively. When the bottom end of the pressure plate 33 is under pressure, the spring travels through the top of the sliding rod into the fixed rod until the entire pressure plate 33 enters the mounting groove 31. Inside, the spring frame 32 ensures that during the needle-punching process, the graphite felt on both sides of the bottom of the needle-punching plate 21 is limited by the pressure plate 33. When the needle-punching plate 21 separates from the surface of the graphite felt, the pressure plates 33 on both sides still limit the needle-punching position of the graphite felt, thus effectively preventing the graphite felt from being lifted when it separates from the needle-punching plate 21, and significantly improving the effect of the needle-punching process of the graphite felt.

[0050] Furthermore, connecting frames 34 are slidably arranged on both sides of the lower part of the pressure frame 22, and a locking block 35 is provided on one side of each of the two connecting frames 34. The needle plate 21 has a slot 36 on both sides that cooperates with the locking block 35. A spring is provided between one side of each of the two connecting frames 34 and one side of the inner wall of the pressure frame 22. When assembling the needle plate 21 and the pressure frame 22, the needle plate 21 is placed into the pressure frame 22 by sliding the connecting frame 34 to one side, and the locking blocks 35 on one side of each of the two connecting frames 34 enter the slots 36 on both sides of the needle plate 21, thus completing the assembly of the needle plate 21 inside the pressure frame 22. Through the structural arrangement of the connecting frames 34 and the locking blocks 35, not only can the needle plate 21 and the pressure frame 22 be quickly assembled, but also different specifications of needle plates 21 can be replaced in the pressure frame 22, thereby significantly improving the needle punching efficiency of graphite felt.

[0051] Example 2

[0052] Please see Figures 8 to 10As shown, to improve the flexibility of moving the acupuncture device, the moving assembly 80 includes a fixed frame 41 and a moving wheel 42. The fixed frame 41 is located at the bottom of the fixed frame 10, and the moving wheel 42 is slidably arranged inside the fixed frame 41. A slider 43 is provided on the front of the moving wheel 42, and a movable block 44 is slidably arranged inside the slider 43. Two limiting blocks 45 are movably arranged on one side of the movable block 44, and a limiting groove 46 that cooperates with the limiting block 45 is opened inside the fixed frame 41. The front of the slider 43 is threaded.

[0053] A push block 48 is also provided on one side inside the fixed frame 41, and a lifting screw 49 is threadedly connected inside the push block 48. The top end of the lifting screw 49 extends to the top of the fixed frame 41, and a driven gear 410 is provided at one end of the lifting screw 49. An adjusting gear 411 is rotatably provided inside the fixed frame 10, and the surface of the adjusting gear 411 meshes with the surface of the driven gear 410. By rotating the adjusting gear 411, the driven gear 410 is driven to rotate at the top of the fixed frame 41, thereby allowing the lifting screw 49 to rotate at the top of the fixed frame 41. The internal rotation of the lifting screw 49 causes the pushing block 48 to move upward along the lifting screw 49. At this time, the moving wheel 42 slides to one side inside the fixed frame 41, allowing the moving wheel 42 to enter the interior of the fixed frame 41 as a whole, so that the bottom end of the fixed frame 41 contacts the ground, ensuring the stability of the needle-punching device during operation. When moving the needle-punching device, one side of the needle-punching device is first lifted, and then the moving wheel 42 is sent out from the interior of the fixed frame 41 by pushing the pushing block 48. Then, the limiting block 45 is pushed into the limiting groove 46 by the movable block 44 to limit the moving wheel 42 inside the fixed frame 41. Then, the moving wheel 42 on the other side is pushed out from the interior of the fixed frame 41. At this time, the moving wheel 42 contacts the ground, and the moving wheel 42 enables flexible movement of the needle-punching device.

[0054] Example 3

[0055] Please see Figures 1 to 10 As shown, this invention also discloses a method for using a needle-punching device in the production of graphite felt, the specific steps of which are as follows:

[0056] Step 1: The graphite felt is flattened by the guide rollers 30 in the guide frame 20. Then the graphite felt enters the interior of the conveyor frame 40. The servo cylinder 12 drives the mounting frame 11 to descend as a whole, so that the two adjusting rollers 13 inside the mounting frame 11 are located on both sides of the graphite felt. The four adjusting rollers 13 are used to straighten the position of the graphite felt in the conveyor frame 40.

[0057] Step 2: After correcting the deviation of the graphite felt during conveying, the pressure roller 14 is used to limit the conveying of the graphite felt on the conveyor frame 40. At the same time, the cleaning roller 15 is used to clean the curled material on the graphite felt. During the rotation of the cleaning roller 15, the feed end of the dust extraction fan 19 creates a negative pressure inside the negative pressure chamber 18 through the extraction pipe 110. The material on the surface of the cleaning roller 15 is blocked by the scraper 17 and enters the inside of the negative pressure chamber 18 through the extraction port. Finally, the dust extraction fan 19 sends the material into the waste bin 111 for centralized collection.

[0058] Step 3: The output end of the servo motor 24 drives the rotating rod 25 to rotate inside the needle punching frame 60. The rotating rod 25 drives the elliptical wheel 26 to rotate inside the needle punching frame 60. The movable column 28 in the elliptical wheel 26 moves up and down under the drive of the elliptical groove 27. Then the movable column 28 drives the connecting rod 29 to move up and down periodically inside the needle punching frame 60. The needle punching frame 60 is used to perform needle punching forming processing on the graphite felt.

[0059] Step 4: When the needle-punching plate 21 performs needle-punching forming on the graphite felt, the pressure plates 33 on both sides inside the pressure frame 22 limit the two sides of the needle-punching position of the graphite felt. When the needle-punching plate 21 separates from the surface of the graphite felt, the pressure plates 33 on both sides still limit the two sides of the needle-punching position of the graphite felt. Finally, the needle-punched graphite felt is sent out through the guide frame 20 on the other side.

[0060] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0061] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0062] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A method of using a needle-punching device for graphite felt production, characterized in that: The needle-punching device includes a fixed frame (10), with guide frames (20) on both sides of the top of the fixed frame (10), and guide rollers (30) inside each of the two guide frames (20). A conveyor frame (40) is provided on the top of the fixed frame (10), and a pretreatment mechanism (50) is provided on the top of the conveyor frame (40). The pretreatment mechanism (50) includes a mounting frame (11), which is located above the conveyor frame (40). The conveyor frame (40) contains a pretreatment mechanism (50). Servo electric cylinders (12) are provided around the four sides of the mounting frame (11), and the drive ends of the four servo electric cylinders (12) are respectively connected to the four sides of the bottom of the mounting frame (11). Four adjusting rollers (13) are provided on one side inside the mounting frame (11), and the four adjusting rollers (13) are all located inside the mounting frame (11) and inclined. The mounting frame (11) is also provided with a pressing roller (14) and a cleaning roller (15), and there are two pressing rollers (14) and two cleaning rollers (15) inside the mounting frame (11). The top of the fixed frame (10) is also provided with a needle-punching frame (60), and the needle-punching frame (60) is provided with a needle-punching mechanism (70); the needle-punching mechanism (70) includes a needle-punching plate (21), a pressure frame (22) and a limiting frame (23). The inner walls of the needle-punching frame (60) are provided with limiting frames (23) on both sides, and the pressure frame (22) is slidably arranged between the two limiting frames (23). The pressure frame (22) is provided with a needle-punching plate inside. (21), and the bottom end of the needle plate (21) extends to the bottom of the pressure frame (22). The pressure frame (22) has mounting grooves (31) on both sides inside, and several spring frames (32) are provided inside the two mounting grooves (31). The pressure plates (33) that cooperate with the mounting grooves (31) are provided on both sides below the pressure frame (22), and the tops of the two pressure plates (33) are respectively connected to the bottom ends of the spring frames (32) on both sides. The specific steps for using this acupuncture device are as follows: Step 1: The graphite felt is flattened by the guide roller (30) in the guide frame (20). Then the graphite felt enters the interior of the conveyor frame (40). The mounting frame (11) is lowered as a whole by the drive end of the servo cylinder (12). The two adjusting rollers (13) inside the mounting frame (11) are located on the two sides of the graphite felt. The four adjusting rollers (13) are used to straighten the position of the graphite felt in the conveyor frame (40). Step 2: After correcting the deviation of the graphite felt during transport, the graphite felt is conveyed on the conveyor frame (40) by the pressure roller (14). At the same time, the curled material on the graphite felt is cleaned by the cleaning roller (15). During the rotation of the cleaning roller (15), the feed end of the dust collector (19) creates a negative pressure inside the negative pressure chamber (18) through the suction pipe (110). The material on the surface of the cleaning roller (15) enters the inside of the negative pressure chamber (18) through the suction port under the obstruction of the scraper (17). Finally, the material is sent into the waste bin (111) for centralized collection by the dust collector (19). Step 3: The output end of the servo motor (24) drives the rotating rod (25) to rotate inside the needle punch frame (60). The rotating rod (25) drives the elliptical wheel (26) to rotate inside the needle punch frame (60). The movable column (28) in the elliptical wheel (26) moves up and down under the drive of the elliptical groove (27). Then the movable column (28) drives the connecting rod (29) to move up and down periodically inside the needle punch frame (60). The needle punch frame (60) is used to perform needle punching and forming processing on the graphite felt. Step 4: When the needle-punching plate (21) performs needle-punching forming on the graphite felt, the pressure plates (33) on both sides inside the pressure frame (22) limit the two sides of the needle-punching position of the graphite felt. When the needle-punching plate (21) separates from the surface of the graphite felt, the pressure plates (33) on both sides still limit the two sides of the needle-punching position of the graphite felt. Finally, the needle-punched graphite felt is sent out through the guide frame (20) on the other side.

2. The method of using the needle punching device for graphite felt production according to claim 1, characterized in that: Inside the mounting frame (11) and above the two cleaning rollers (15), there is a collection frame (16), and at the bottom of the collection frame (16) there are two scrapers (17). The bottom of the two scrapers (17) respectively contacts the surface of the two cleaning rollers (15). A negative pressure chamber (18) is opened inside the collection frame (16). At the bottom of the negative pressure chamber (18) and on one side of the two scrapers (17), there are several material extraction ports, and the interior of the several material extraction ports is connected to the interior of the negative pressure chamber (18).

3. The method of using the needle-punching device for graphite felt production according to claim 1, characterized in that: The top of the mounting frame (11) is provided with a dust extraction fan (19), and the feed end of the dust extraction fan (19) is connected to the inside of the negative pressure chamber (18) through the extraction pipe (110). A waste bin (111) is also provided on one side of the top of the mounting frame (11), and the discharge end of the dust extraction fan (19) is connected to the inside of the waste bin (111).

4. The method of using the needle-punching device for graphite felt production according to claim 1, characterized in that: A servo motor (24) is provided on one side of the needle frame (60), and a rotating rod (25) is provided at the output end of the servo motor (24) through a coupling. An elliptical wheel (26) is provided on the surface of the rotating rod (25), and an elliptical groove (27) is provided inside the elliptical wheel (26).

5. The method of using the needle punching device for graphite felt production according to claim 4, characterized in that: The elliptical groove (27) is movably provided with a movable column (28), and the surface of the movable column (28) is provided with a connecting rod (29). The bottom end of the connecting rod (29) is connected to the top of the needle plate (21), and the surface of the connecting rod (29) is slidably connected to the inside of the needle frame (60).

6. The method of using the needle punching device for graphite felt production according to claim 1, characterized in that: A pad (210) is also provided at the bottom inside the needle frame (60), and conveying rollers are rotatably provided on both sides inside the pad (210).

7. The method of using the needle punching device for graphite felt production according to claim 1, characterized in that: The material pressing frame (22) has connecting frames (34) slidably arranged on both sides of the lower part of the interior, and each of the two connecting frames (34) has a locking block (35) on one side. The needle plate (21) has a locking groove (36) on both sides that cooperates with the locking block (35).

8. The method of using the needle punching device for graphite felt production according to claim 1, characterized in that: The fixed frame (10) is provided with moving components (80) around its bottom. The moving components (80) include a fixed frame (41) and moving wheels (42). The fixed frame (41) is located at the bottom of the fixed frame (10), and the moving wheels (42) are slidably arranged inside the fixed frame (41). The front of the moving wheels (42) is provided with a slider (43), and the inside of the slider (43) is provided with a movable block (44). Two limit blocks (45) are movably arranged on one side of the movable block (44), and the inside of the fixed frame (41) is provided with a limit groove (46) that cooperates with the limit blocks (45). The front of the slider (43) is threadedly connected with an adjusting screw (47), and one end of the adjusting screw (47) is rotatably connected to one side of the movable block (44).

9. A method of using the needle-punching device for graphite felt production according to claim 8, characterized in that: A push block (48) is also provided on one side inside the fixed frame (41), and a lifting screw (49) is threadedly connected inside the push block (48). The top end of the lifting screw (49) extends to the top of the fixed frame (41), and a driven gear (410) is provided at one end of the lifting screw (49). An adjusting gear (411) is rotatably provided inside the fixed frame (10), and the surface of the adjusting gear (411) meshes with the surface of the driven gear (410).

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