Small-diameter carbon-carbon preform equipment

Abstract

The utility model relates to small-diameter carbon-carbon preform equipment, relates to the technical field of carbon-carbon preform preparation, and is used for solving the problems that in the prior art, clamping equipment for a small-diameter carbon-carbon preform supporting rod is lacked, follow-up work is directly hindered, the overall production progress is slowed down, the operation difficulty and cost are increased, and the production efficiency is high. Potential threats are caused to the production efficiency and the product quality; comprising a box body, a clamping mechanism, a driving mechanism, a wire winding mechanism and a needling mechanism, a rack is movably mounted in the box body, mounting plates are symmetrically and fixedly mounted at the two ends of the rack, the clamping mechanism comprises two driving rollers and two driven rollers, the two driving rollers are rotationally mounted between the two mounting plates, and the two driven rollers are rotationally mounted between the two mounting plates; a plurality of mounting plates are arranged in the box body, each mounting plate is symmetrically provided with sliding grooves which are arranged in an inverted splayed shape, the two ends of each driven roller are arranged in the sliding grooves in the two sides in a sliding mode respectively, the driving mechanism and the tensioning mechanism are both mounted on the rack, the wire winding mechanism is mounted on the rack, and the needling mechanism is mounted at the top in the box body.

Description

Technical Field

[0001] This utility model relates to the field of carbon-carbon preform preparation technology, and in particular to a small-diameter carbon-carbon preform equipment. Background Technology

[0002] With the increasing maturity of carbon-carbon composite (C / C) technology, small-diameter carbon-carbon preform support rods have become indispensable core components in aerospace, defense technology, and high-end manufacturing industries (such as polycrystalline silicon ingot furnaces) due to their excellent high-temperature resistance, outstanding thermal shock resistance, and exceptional mechanical strength. Especially in monocrystalline silicon production processes, these small-diameter support rods, as key support components of the monocrystalline furnace crucible, directly determine the accuracy and production efficiency of the monocrystalline pulling process, playing a crucial role in improving product quality.

[0003] However, despite the significant functional advantages of small-diameter carbon precast support rods, their tiny size and slender shape, combined with the inherent brittleness of the material, present unprecedented challenges in the clamping operations during processing, transportation, and installation. Currently, clamping equipment for large-diameter (φ60 and above) support rods is relatively mature in the market, but dedicated clamping equipment for small-diameter ranges (φ30 to φ60) is particularly scarce. This gap mainly stems from significant compatibility issues between small-diameter support rods and existing large-diameter equipment in terms of clamping angle and support structure, making coexistence and flexible switching difficult.

[0004] More importantly, if the small-diameter carbon preform support rods cannot be stably and effectively clamped during processing and installation, it will directly hinder the smooth progress of subsequent key process steps such as rolling, winding, needle punching and precise lateral movement, thereby slowing down the overall production progress, increasing the difficulty and cost of operation, and posing a potential threat to production efficiency and product quality. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a small-diameter carbon preform equipment to solve the problem that the lack of clamping equipment for small-diameter carbon preform support rods in existing technologies directly hinders the progress of subsequent work, thereby slowing down the overall production schedule, increasing operational difficulty and cost, and posing a potential threat to production efficiency and product quality.

[0006] To achieve the above objectives, this utility model provides a small-diameter carbon preform device, comprising:

[0007] The housing has a guide rail fixedly installed inside, a frame is movably mounted on the guide rail, and mounting plates are symmetrically fixedly installed at both ends of the frame.

[0008] The clamping mechanism includes two active rollers and two passive rollers. The two active rollers are rotatably mounted between two mounting plates. Each mounting plate has symmetrically arranged sliding grooves in the shape of an inverted "V". The two ends of the two passive rollers are slidably disposed in the sliding grooves on both sides. The two passive rollers are parallel to the two active rollers. The clamping diameter is adjusted by means of the passive rollers.

[0009] A drive mechanism, mounted on the frame, is used to drive the rotation of the drive roller and the rotation and sliding of the driven roller;

[0010] The tensioning mechanism includes a tensioning wheel and a sliding assembly. The sliding assembly is mounted on one side of the mounting plate, and the tensioning wheel is slidably connected to the sliding assembly. The tensioning wheel is used to adjust the drive mechanism.

[0011] A wire winding mechanism, mounted on the frame, is used to wind small-diameter carbon preform support rods;

[0012] A needle-punching mechanism is installed inside the housing and is used to needle-punch the small-diameter carbon preform support rod.

[0013] This configuration, through the cooperation of the frame, mounting plate, chute, drive roller, driven roller, drive mechanism, and tensioning mechanism, achieves the effect of adjusting the clamping diameter. This makes it easy for the equipment to clamp small-diameter carbon preform support rods, thus not affecting the smooth progress of subsequent key process steps such as rolling, winding, needle punching, and precise lateral movement. It avoids slowing down the overall production progress, reduces operating difficulty and cost, and improves production efficiency and product quality.

[0014] Furthermore, a second stepper motor is fixedly installed inside the housing, and a lead screw is fixedly connected to the output shaft of the second stepper motor. The lead screw is threadedly connected to the bottom of the frame, and multiple sliding blocks are fixedly connected to the bottom of the frame. The sliding blocks are movably connected to the guide rail.

[0015] Furthermore, the driving mechanism includes a sliding driving component and a rotating driving component, both of which are mounted on one side of the mounting plate. The sliding driving component is connected to the driven roller, and the rotating driving component is connected to the driving roller. A transmission component is provided between the sliding driving component and the rotating driving component.

[0016] Furthermore, the rotation drive assembly includes a first stepper motor and a drive wheel. The first stepper motor is fixedly mounted on one side of the mounting plate. The output shaft of the first stepper motor is fixedly connected to the drive wheel. Both ends of the two drive rollers are fixedly connected to a first transmission wheel and a second transmission wheel. A first belt is tensioned between the drive wheel and the two first transmission wheels on the same side. The transmission assembly is disposed between the second transmission wheel and the driven roller.

[0017] Furthermore, the sliding drive assembly includes an opening and closing cylinder and a connecting rod. The opening and closing cylinder is fixedly installed on one side of the mounting plate, and the piston rod of the opening and closing cylinder is fixedly connected to the connecting rod. A sliding seat is symmetrically slidably sleeved on the connecting rod. A first slide rail is symmetrically installed on the mounting plate. The first slide rail is parallel to the slide groove. The sliding seat is slidably connected to the first slide rail. Both ends of the two driven rollers are fixedly connected to driven moving wheels, and the driven moving wheels are rotatably mounted on the sliding seat.

[0018] Furthermore, multiple support columns are fixedly installed on the frame, and support plates are fixedly installed on both sides of each support column. Multiple through holes are opened on each support plate, and a rolling shaft is rotatably installed between two of the through holes. The rolling shaft is in contact with the bottom of the drive roller and is parallel to the drive roller.

[0019] Furthermore, the transmission assembly includes a second belt and a driven movable wheel, and a driven fixed wheel is fixedly installed on one side of the mounting plate. The second belt is tensioned between the driven movable wheel, the driven fixed wheel, the tensioning wheel, and the second transmission wheel.

[0020] Furthermore, the sliding assembly includes a first cylinder, a second slide rail, and a mounting base. The first cylinder and the second slide rail are both fixedly installed on one side of the mounting plate. The mounting base is slidably connected to the second slide rail. The tension wheel is rotatably installed on the mounting base. The piston rod of the first cylinder is fixedly connected to the mounting base.

[0021] Furthermore, the winding mechanism includes a reciprocating wire guide, the two ends of which are respectively fixed to the two ends of the frame, and a guide component for guiding the carbon fiber bundle to be wound is installed on the slider of the wire guide.

[0022] Furthermore, the needle-piercing mechanism includes a needle and a mounting box. The mounting box is installed at the top inside the housing. A second cylinder is fixedly installed inside the mounting box. The piston rod of the second cylinder is fixedly connected to a lifting plate. The needle is detachably installed on one side of the lifting plate.

[0023] The beneficial effects of this embodiment are as follows:

[0024] 1. Through the cooperation of the frame, mounting plate, chute, active roller, driven roller, drive mechanism and tensioning mechanism, the clamping diameter can be adjusted, making it easy for the equipment to clamp small-diameter carbon preform support rods. This does not affect the smooth progress of subsequent key process steps such as rolling, winding, needle punching and precise transverse movement, avoids slowing down the overall production progress, reduces operating difficulty and cost, and improves production efficiency and product quality.

[0025] 2. The support column, support plate and rolling shaft work together to support the drive roller, which increases the strength and prevents the drive roller from deforming due to the high needle punching strength.

[0026] 3. By cooperating with the second stepper motor, lead screw, guide rail, sliding block and frame, the effect of moving the carbon preform support rod is achieved, which solves the problem of the needle pitch of the needle punching mechanism becoming larger. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of the small-diameter carbon preform equipment according to an embodiment of the present invention;

[0028] Figure 2 This is a schematic diagram of the connection between the frame and the housing in the small-diameter carbon preform equipment according to an embodiment of the present invention;

[0029] Figure 3 This is a schematic diagram of the frame structure in the small-diameter carbon preform equipment according to an embodiment of the present invention;

[0030] Figure 4 This is a schematic diagram of one side of the mounting plate in the small-diameter carbon preform equipment according to an embodiment of the present invention;

[0031] Figure 5 This is a schematic diagram of the other side of the mounting plate in the small-diameter carbon preform equipment according to an embodiment of the present invention;

[0032] Figure 6 This is a diagram showing the running trajectory of the second belt in the small-diameter carbon preform equipment according to an embodiment of the present invention.

[0033] Figure 7 This is a schematic diagram of the structure of the rolling shaft in the small-diameter carbon preform equipment according to an embodiment of the present invention;

[0034] Figure 8 This is a schematic diagram of the needle punching mechanism in the small-diameter carbon preform equipment according to an embodiment of the present invention.

[0035] Among them, the housing 1, the frame 10, the mounting plate 11, the slide 12, the guide rail 13, the sliding block 14, the second stepper motor 15, and the lead screw 16;

[0036] Driven roller 21, driven roller 22, support column 23, support plate 24, rolling shaft 25;

[0037] Sliding drive assembly 31, opening and closing cylinder 311, connecting rod 312, first slide rail 313, sliding seat 314;

[0038] Rotation drive assembly 32, drive wheel 321, first belt 322, first transmission wheel 323, first stepper motor 324;

[0039] Transmission assembly 33, driven moving wheel 331, driven fixed wheel 332, second belt 333;

[0040] Tensioning mechanism 4, first cylinder 41, second slide rail 42, mounting base 43, tensioning wheel 44;

[0041] Air pressure buffer 51, buffer stop plate 52;

[0042] Needle-piercing mechanism 6, mounting box 61, lifting plate 62, needle 63, second cylinder 64;

[0043] Cable guide 71, guide assembly 72;

[0044] Touchscreen 8. Detailed Implementation

[0045] The specific embodiments of this utility model will be described in detail below. It should be noted that the embodiments described herein are for illustrative purposes only and are not intended to limit the utility model. In the following description, numerous specific details are set forth in order to provide a thorough understanding of this utility model. However, it will be apparent to those skilled in the art that these specific details are not necessary to implement this utility model. In other instances, well-known circuits, software, or methods have not been specifically described in order to avoid obscuring the utility model.

[0046] Throughout this specification, references to "an embodiment," "an embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in connection with that embodiment or example is included in at least one embodiment of the present invention. Therefore, the phrases "in an embodiment," "in an embodiment," "an example," or "an example" appearing in various places throughout the specification do not necessarily refer to the same embodiment or example. Furthermore, specific features, structures, or characteristics can be combined in any suitable combination and / or sub-combination in one or more embodiments or examples. Moreover, those skilled in the art will understand that the illustrations provided herein are for illustrative purposes and are not necessarily drawn to scale.

[0047] Please see Figure 1 and Figure 3This utility model provides an embodiment of a small-diameter carbon-carbon preform equipment, comprising: a housing 1, a clamping mechanism, a driving mechanism, a wire winding mechanism, and a needle punching mechanism 6. A guide rail 13 is fixedly installed inside the housing 1. Two guide rails 13 are symmetrically fixedly installed. A frame 10 is movably installed on the guide rails 13. Mounting plates 11 are symmetrically fixedly installed at both ends of the frame 10. The clamping mechanism includes two driving rollers 21 and two driven rollers 22. The two driving rollers 21 are rotatably mounted between the two mounting plates 11. Each mounting plate 11 has symmetrically formed inverted "V"-shaped grooves 12. The two driven rollers 22... The two ends of the roller are slidably set in the slide grooves 12 on both sides. The two driven rollers 22 are parallel to the two driving rollers 21. The drive mechanism is installed on the frame 10 and connected to the driving rollers 21 and driven rollers 22. In use, the driven rollers 22 are moved up and down along the slide grooves 12 by the drive mechanism to adjust the clamping diameter. This makes it easier for the equipment to clamp small-diameter carbon preform support rods, so as not to affect the smooth progress of subsequent key process steps such as rolling, winding, needle punching and precise transverse movement, avoid slowing down the overall production progress, reduce the difficulty and cost of operation, and improve production efficiency and product quality. The tensioning mechanism 4 includes a tensioning wheel 44 and a sliding assembly. The sliding assembly is installed on one side of the mounting plate 11. The tensioning wheel 44 is slidably connected to the sliding assembly. The tensioning wheel 44 is connected to the drive mechanism. In use, the tensioning wheel 44 slides accordingly with the sliding assembly. The winding mechanism is installed on the frame 10, and the needle punching mechanism 6 is installed on the top inside the housing 1. It is used to wind and needle small-diameter carbon preform support rods.

[0048] Please see Figure 2 In this embodiment, a second stepper motor 15 is fixedly installed inside the housing 1. The output shaft of the second stepper motor 15 is fixedly connected to a lead screw 16, which is threaded to the bottom of the frame 10. Multiple sliding blocks 14 are fixedly connected to the bottom of the frame 10, and the sliding blocks 14 are movably connected to the guide rail 13. When in use, the second stepper motor 15 is started, and the output shaft of the second stepper motor 15 drives the lead screw 16 to rotate, thereby causing the frame 10 to move along the guide rail 13 under the rotation of the lead screw 16. In actual use, the specific displacement of the frame 10 can be controlled by setting the direction, distance and number of times, which is used to solve the problem of the needle spacing of the needle 6 becoming larger.

[0049] Please see Figure 3 In this embodiment, the driving mechanism includes a sliding driving component 31 and a rotating driving component 32. Both the sliding driving component 31 and the rotating driving component 32 are mounted on one side of the mounting plate 11. The sliding driving component 31 is connected to the driven roller 22, and the rotating driving component 32 is connected to the driving roller 21. A transmission component 33 is provided between the sliding driving component 31 and the rotating driving component 32.

[0050] Please see Figure 4-5In this embodiment, the rotation drive assembly 32 includes a first stepper motor 324 and a drive wheel 321. The first stepper motor 324 is fixedly installed on one side of the mounting plate 11. The output shaft of the first stepper motor 324 is fixedly connected to the drive wheel 321. A first transmission wheel 323 and a second transmission wheel are fixedly connected to both ends of the two drive rollers 21. A first belt 322 is tensioned between the drive wheel 321 and the two first transmission wheels 323 on the same side. The transmission assembly 33 is disposed between the second transmission wheel and the driven roller 22. In use, the first stepper motor 324 is started, and the output shaft of the first stepper motor 324 drives the drive wheel 321 to rotate. The drive wheel 321 drives the drive roller 21 to rotate accordingly through the first transmission wheel 323, so that the two drive rollers 21 rotate in opposite directions, thereby achieving the effect of rotating the carbon preform support rod. At the same time, the driven roller 22 is rotated synchronously through the second transmission wheel and the transmission assembly 33.

[0051] Please see Figure 4 In this embodiment, the sliding drive assembly 31 includes an opening and closing cylinder 311 and a connecting rod 312. The opening and closing cylinder 311 is fixedly installed on one side of the mounting plate 11. The piston rod of the opening and closing cylinder 311 is fixedly connected to the connecting rod 312. A sliding seat 314 is symmetrically slidably sleeved on the connecting rod 312. A first slide rail 313 is symmetrically installed on the mounting plate 11. The first slide rail 313 is parallel to the slide groove 12. The sliding seat 314 is slidably connected to the first slide rail 313. Both ends of the two driven rollers 22 are fixedly connected to driven moving wheels 331. The driven moving wheels 331 are rotatably installed on the sliding seat 314. When in use, the opening and closing cylinder 311 is started, and the piston rod of the opening and closing cylinder 311 drives the connecting rod 312 to move up and down. As a result, the sliding seat 314 moves along the first slide rail 313 with the connecting rod 312, thus achieving the effect of moving the driven rollers 22 up and down. In this embodiment, an electronic proportional valve is provided on the opening and closing cylinder 311 to adjust the clamping force.

[0052] Please see Figure 4-5 In this embodiment, the sliding assembly includes a first cylinder 41, a second slide rail 42, and a mounting base 43. The first cylinder 41 and the second slide rail 42 are both fixedly mounted on one side of the mounting plate 11. The mounting base 43 is slidably connected to the second slide rail 42. The tension wheel 44 is rotatably mounted on the mounting base 43. The piston rod of the first cylinder 41 is fixedly connected to the mounting base 43. In use, the first cylinder 41 is activated in conjunction with the opening and closing cylinder 311. The piston rod of the first cylinder 41 drives the mounting base 43 to move up and down along the second slide rail 42, thereby driving the tension wheel 44 to move up and down, thus avoiding the movement of the driven roller 22 from affecting the transmission effect of the transmission assembly 33.

[0053] Please see Figure 5-6In this embodiment, the transmission assembly 33 includes a second belt 333 and a driven movable wheel 331. A driven fixed wheel 332 is fixedly installed on one side of the mounting plate 11. The second belt 333 is tensioned between the driven movable wheel 331, the driven fixed wheel 332, the tension wheel 44, and the second transmission wheel. The tension wheel 44 prevents the movement of the driven roller 22 from affecting the transmission effect of the second belt 333. At the same time, the driven fixed wheel 332 provides a support point to ensure the pressure angle of the tension wheel 44, thereby improving transmission efficiency, enhancing load capacity, improving transmission accuracy, ensuring transmission stability, and protecting the related transmission components.

[0054] Please see Figure 7 In this embodiment, multiple support columns 23 are fixedly installed on the frame 10, optionally five. Support plates 24 are symmetrically fixedly installed on both sides of each support column 23. Each support plate 24 has multiple through holes, optionally three. A rolling shaft 25 is rotatably installed between two opposite through holes. The rolling shaft 25 contacts the bottom of the drive roller 21 and is parallel to the drive roller 21, supporting the upper drive roller 21, increasing its strength, and preventing deformation of the drive roller 21 due to high needle-punching strength. In this embodiment, the overall shape of the top of the support plate 24 and the rolling shaft 25 mimics the shape of the bottom of the two drive rollers 21, making the rolling shaft 25 fit the drive roller 21 more closely, thus achieving a better support effect.

[0055] Please see Figure 5 In this embodiment, a buffer mechanism is installed between the sliding seat 314 and the mounting plate 11. The buffer mechanism includes a pneumatic buffer 51 and a buffer blocking plate 52. The pneumatic buffer 51 is symmetrically fixedly installed on the mounting plate 11, and the buffer blocking plate 52 is fixedly installed on the sliding seat 314. The piston rod of the pneumatic buffer 51 is used to abut against the buffer blocking plate 52. In use, the pneumatic buffer 51 is pre-adjusted according to the actual diameter of the carbon preform support rod to be clamped. When the buffer blocking plate 52 moves down with the sliding seat 314, it hits the pneumatic buffer 51 first, thereby reducing the impact force of the driven roller 22 on the carbon preform support rod when it moves down, and avoiding damage to the carbon preform support rod due to excessive impact force when the driven roller 22 moves down to clamp the carbon preform support rod.

[0056] Please see Figure 1 In this embodiment, the winding mechanism includes a reciprocating wire guide 71. The two ends of the wire guide 71 are respectively fixed to the side walls at both ends of the frame 10. A guide component 72 for guiding the carbon fiber bundle to be wound is installed on the slider of the wire guide 71. The wire guide 71 and the guide component 72 in this embodiment are both existing technologies, so they will not be described in detail here.

[0057] Please see Figure 8In this embodiment, the needle-piercing mechanism 6 includes a needle 63 and a mounting box 61. The mounting box 61 is installed at the top of the inside of the box body 1. A second cylinder 64 is fixedly installed inside the mounting box 61. The piston rod of the second cylinder 64 is fixedly connected to a lifting plate 62. The needle 63 is detachably installed on one side of the lifting plate 62. In use, by activating the second cylinder 64, the needle 63 is reciprocated to pierce the carbon preform support rod. The distance and frequency of piercing are controlled by controlling the second cylinder 64. At the same time, the needle 63 and the lifting plate 62 are fixedly installed by means of locking screws or snap-fit, thereby achieving the effect of quick installation and removal of the needle 63, which facilitates the replacement and maintenance of the needle 63.

[0058] Please see Figure 1-5 and Figure 8 In this embodiment, a touch screen 8 is fixedly installed on one side of the housing 1. The second cylinder 64, the first cylinder 41, the opening and closing cylinder 311, the first stepper motor 324, the pneumatic buffer 51, the second stepper motor 15 and the cable tray 71 are all electrically connected to the touch screen 8, which facilitates operation by the staff.

[0059] The specific usage method of this embodiment is as follows:

[0060] In use, the carbon preform support rod is first placed between the two active rollers 21. Then, the opening and closing cylinder 311 is activated. The piston rod of the opening and closing cylinder 311 drives the connecting rod 312 to move downward. As a result, the sliding seat 314 drives the driven roller 22 to move downward along the first slide rail 313 with the connecting rod 312 until the driven roller 22 presses against the carbon preform support rod. At the same time, the air pressure buffer 51 is pre-adjusted according to the actual diameter of the carbon preform support rod to be clamped. When the buffer blocking plate 52 moves downward with the sliding seat, it hits the air pressure buffer 51 first, thereby reducing the impact force of the driven roller 22 on the carbon preform support rod when it moves downward, and avoiding damage to the carbon preform support rod due to excessive impact force when the driven roller 22 clamps the carbon preform support rod when it moves downward.

[0061] Simultaneously with the activation of the opening / closing cylinder 311, the first stepper motor 324 and the first cylinder 41 are activated. The output shaft of the first stepper motor 324 drives the drive wheel 321 to rotate. The drive wheel 321 drives the drive roller 21 to rotate accordingly via the first transmission wheel 323, causing the two drive rollers 21 to rotate in opposite directions. The second transmission wheel then rotates accordingly, and through the second transmission wheel, it sequentially drives the second belt 333, the driven moving wheel 331, and the driven roller 22 to rotate accordingly. The piston rod of the first cylinder 41 drives the mounting base 43 to move up and down along the second slide rail 42, thereby driving the tension wheel 44 to move up and down, so that the second belt 333 is always kept taut, preventing the movement of the driven roller 22 from affecting the transmission effect of the second belt 333.

[0062] After clamping the carbon preform support rod, the second cylinder 64 is activated. The piston rod of the reciprocating second cylinder 64 drives the needle 63 to puncture the carbon preform support rod. The distance and frequency of puncture are controlled by controlling the second cylinder 64. At the same time, the second stepper motor 15 can be activated as needed. If needed, the second stepper motor 15 is activated. The output shaft of the second stepper motor 15 drives the lead screw 16 to rotate, so that the frame 10 moves along the guide rail 13 under the rotation of the lead screw 16. In actual use, the specific displacement of the frame 10 can be controlled by setting the direction, distance and number of times to solve the problem of the needle distance of the puncture mechanism 6 becoming larger.

[0063] During needle punching, the first stepper motor 324 and the first cylinder 41 are started. The output shaft of the first stepper motor 324 drives the drive wheel 321 to rotate. The drive wheel 321 drives the drive roller 21 to rotate accordingly through the first transmission wheel 323, so that the two drive rollers 21 rotate in opposite directions. The second transmission wheel rotates accordingly, and through the second transmission wheel, it drives the second belt 333, the driven moving wheel 331 and the driven roller 22 to rotate accordingly, thereby driving the carbon preform support rod to rotate accordingly until the carbon preform rotates one revolution, completing the needle punching.

[0064] When winding the wire, start the wire guide 71, following a similar operating procedure to that of needle-punching the carbon preform support rod.

[0065] In summary, this invention, through the coordinated operation of the frame 10, mounting plate 11, slide 12, driving roller 21, driven roller 22, drive mechanism, and tensioning mechanism, achieves the effect of adjusting the clamping diameter. This makes the equipment easier to clamp small-diameter carbon preform support rods, thus not affecting the smooth progress of subsequent key process steps such as rolling, winding, needle punching, and precise lateral movement. It avoids slowing down the overall production progress, reduces operational difficulty and cost, and improves production efficiency and product quality. Therefore, this invention effectively overcomes the various shortcomings of the prior art.

[0066] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A small-diameter carbon preform equipment, characterized in that, include: The housing has a guide rail fixedly installed inside, a frame is movably mounted on the guide rail, and mounting plates are symmetrically fixedly installed at both ends of the frame. The clamping mechanism includes two active rollers and two passive rollers. The two active rollers are rotatably mounted between two mounting plates. Each mounting plate has symmetrically arranged sliding grooves in the shape of an inverted "V". The two ends of the two passive rollers are slidably disposed in the sliding grooves on both sides. The two passive rollers are parallel to the two active rollers. The clamping diameter is adjusted by means of the passive rollers. A drive mechanism, mounted on the frame, is used to drive the rotation of the drive roller and the rotation and sliding of the driven roller; The tensioning mechanism includes a tensioning wheel and a sliding assembly. The sliding assembly is mounted on one side of the mounting plate, and the tensioning wheel is slidably connected to the sliding assembly. The tensioning wheel is used to adjust the drive mechanism. A wire winding mechanism, mounted on the frame, is used to wind small-diameter carbon preform support rods; A needle-punching mechanism is installed inside the housing and is used to needle-punch the small-diameter carbon preform support rod.

2. The small-diameter carbon-carbon preform equipment according to claim 1, characterized in that: A second stepper motor is fixedly installed inside the housing. The output shaft of the second stepper motor is fixedly connected to a lead screw, which is threaded to the bottom of the frame. Multiple sliding blocks are fixedly connected to the bottom of the frame, and the sliding blocks are movably connected to the guide rail.

3. The small-diameter carbon-carbon preform equipment according to claim 1, characterized in that: The driving mechanism includes a sliding drive assembly and a rotating drive assembly. Both the sliding drive assembly and the rotating drive assembly are mounted on one side of the mounting plate. The sliding drive assembly is connected to the driven roller, and the rotating drive assembly is connected to the driving roller. A transmission assembly is provided between the sliding drive assembly and the rotating drive assembly.

4. The small-diameter carbon-carbon preform equipment according to claim 3, characterized in that: The rotation drive assembly includes a first stepper motor and a drive wheel. The first stepper motor is fixedly mounted on one side of the mounting plate. The output shaft of the first stepper motor is fixedly connected to the drive wheel. Both ends of the two drive rollers are fixedly connected to a first transmission wheel and a second transmission wheel. A first belt is tensioned between the drive wheel and the two first transmission wheels on the same side. The transmission assembly is disposed between the second transmission wheel and the driven roller.

5. The small-diameter carbon-carbon preform equipment according to claim 4, characterized in that: The sliding drive assembly includes an opening and closing cylinder and a connecting rod. The opening and closing cylinder is fixedly installed on one side of the mounting plate. The piston rod of the opening and closing cylinder is fixedly connected to the connecting rod. A sliding seat is symmetrically slidably sleeved on the connecting rod. A first slide rail is symmetrically installed on the mounting plate. The first slide rail is parallel to the slide groove. The sliding seat is slidably connected to the first slide rail. Both ends of the two driven rollers are fixedly connected to driven moving wheels. The driven moving wheels are rotatably mounted on the sliding seat.

6. The small-diameter carbon-carbon preform equipment according to claim 1, characterized in that: Multiple support columns are fixedly installed on the frame. Support plates are fixedly installed on both sides of each support column. Multiple through holes are opened on each support plate. A rolling shaft is rotatably installed between two of the through holes. The rolling shaft is in contact with the bottom of the drive roller and is parallel to the drive roller.

7. The small-diameter carbon-carbon preform equipment according to claim 5, characterized in that: The transmission assembly includes a second belt and a driven movable wheel. A driven fixed wheel is fixedly installed on one side of the mounting plate. The second belt is tensioned between the driven movable wheel, the driven fixed wheel, the tensioning wheel, and the second transmission wheel.

8. The small-diameter carbon-carbon preform equipment according to claim 1, characterized in that: The sliding assembly includes a first cylinder, a second slide rail, and a mounting base. The first cylinder and the second slide rail are both fixedly mounted on one side of the mounting plate. The mounting base is slidably connected to the second slide rail. The tension wheel is rotatably mounted on the mounting base. The piston rod of the first cylinder is fixedly connected to the mounting base.

9. The small-diameter carbon-carbon preform equipment according to claim 1, characterized in that: The winding mechanism includes a reciprocating wire guide, with both ends of the wire guide fixed to both ends of the frame, and a guide component for guiding the carbon fiber bundle to be wound is installed on the slider of the wire guide.

10. The small-diameter carbon-carbon preform equipment according to claim 1, characterized in that: The needle-piercing mechanism includes a needle and a mounting box. The mounting box is installed inside the top of the housing. A second cylinder is fixedly installed inside the mounting box. The piston rod of the second cylinder is fixedly connected to a lifting plate. The needle is detachably installed on one side of the lifting plate.

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