Processing method and processing equipment for annular carbon-carbon product

Abstract

The invention discloses a processing method and processing equipment of an annular carbon-carbon product, and relates to the technical field of carbon fiber processing technology.The processing method of the annular carbon-carbon product comprises the steps that raw materials are obtained; wherein the raw materials at least comprise annular carbon cloth and an annular net tire; preparing a prefabricated laminated ring based on the annular carbon cloth and the annular net tire; the prefabricated laminated ring is subjected to gum dipping, and a primary ring is obtained; the primary ring is pressed and carbonized until the thickness reaches a preset value, and a rough ring is obtained; according to the preparation method, the annular raw material is prepared into the prefabricated laminated ring, and then the prefabricated laminated ring is sequentially subjected to gum dipping, pressing, carbonization, high-temperature treatment and machining, so that the target carbon ring is prepared, the layering risk in the cutting process is eliminated, and the yield of the target carbon ring is improved. And the production cycle of the single ring is remarkably shortened, abrasion parts in cutting equipment do not need to be replaced, then the downtime is shortened, and the production efficiency is further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of carbon fiber processing technology, and particularly relates to a processing method and processing equipment for annular carbon-carbon products. Background Art

[0002] The forming link is the core link in the manufacturing of carbon-carbon annular composites. The forming quality of the preform directly determines the structural uniformity, density, and high-temperature stability of the final product.

[0003] The traditional forming process for annular carbon-carbon preforms needs to go through multiple links such as "laying up → curing → carbonization → cutting → post-treatment". After the carbonization link, the raw material forms a carbon barrel (cylindrical blank), and the diamond wire saw combined with the barrel cutting ring process needs to be used to cut the carbon barrel formed by carbonization into annular thin slices.

[0004] However, in the traditional process, the barrel cutting ring process is highly dependent on mechanical cutting force. During the cutting process, internal stress concentration in the material is easily caused, resulting in delamination and edge damage. Moreover, the cutting equipment needs to be frequently replaced due to high wear, and the downtime is too long, resulting in low production efficiency. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a processing method for carbon-carbon products to alleviate the technical problems in the prior art that the barrel cutting ring process is highly dependent on mechanical cutting force, easily causes delamination and edge damage, and the cutting equipment needs to be frequently replaced, resulting in low production efficiency.

[0006] In a first aspect, the present invention provides a processing method for annular carbon-carbon products, and the method includes: Obtain raw materials; wherein, the raw materials at least include annular carbon cloth and annular wire mesh preform; Prepare a prefabricated laminated ring based on the annular carbon cloth and the annular wire mesh preform; Impregnate the prefabricated laminated ring to obtain a preliminary ring; Press the preliminary ring and carbonize it until the thickness reaches a preset value to obtain a rough ring; Perform high-temperature treatment and machining on the rough ring to obtain a target carbon ring.

[0007] In some possible implementation manners, the step of preparing a prefabricated laminated ring based on the annular carbon cloth and the annular wire mesh preform includes: Stack the annular carbon cloth and the annular wire mesh preform to obtain a raw material ring; For each raw material ring, lay the raw material ring on a rotating platform, control the rotating platform to rotate, and the needle to vertically penetrate at a specified frequency and then hook the current raw material ring and the previous raw material ring located below the current raw material ring; Meanwhile, control the stripping plate to strip the hooked object until a prefabricated laminated ring containing the target number of raw material rings is obtained.

[0008] In some possible embodiments, for each of the raw material rings, the steps of laying the raw material ring on the rotating platform, controlling the rotation of the rotating platform, and vertically piercing the thorns into the raw material ring at a specified frequency and then hooking the current raw material ring and the previous raw material ring located below the current raw material ring include: For each raw material ring, the piercing depth of the thorn into the raw material ring is a specified value.

[0009] In some possible embodiments, the steps of laying the raw material ring on the rotating platform, controlling the rotation of the rotating platform, and vertically piercing the thorns into the raw material ring at a specified frequency and then hooking the current raw material ring and the previous raw material ring located below the current raw material ring further include: Taking the position where the thorn first pierces the current raw material ring as the initial position; When the thorn corresponds to the initial position again, controlling the rotating platform, the thorn, and the stripping net plate to stop running; Driving the thorn to move a first length along the diameter of the raw material ring.

[0010] In some possible embodiments, the step of controlling the rotating platform, the thorn, and the stripping net plate to stop running when the thorn corresponds to the initial position again further includes: Driving the thorn to move a second length along the vertical direction and away from the rotating platform; Wherein, the second length is the same as the thickness of the raw material ring.

[0011] In some possible embodiments, before the step of laying the raw material ring on the rotating platform, it includes: Laying a ring-shaped wooden mold layer on the rotating platform; Laying a ring-shaped foam layer on the ring-shaped wooden mold layer.

[0012] In some possible embodiments, in the step of laying the raw material ring on the rotating platform, the raw material ring includes a plurality of arc-shaped laminated raw materials; The plurality of arc-shaped laminated raw materials are butt-jointed end to end to form a raw material ring.

[0013] In some possible embodiments, the steps of performing high-temperature treatment and machining on the rough ring to obtain a target carbon ring include: Polishing the rough ring after high-temperature treatment to obtain a target carbon ring.

[0014] In a second aspect, the present application provides a processing device for annular carbon-carbon products, including: A support assembly, including a rotating mechanism and a rotating container. The container is arranged on a bearing part and is in transmission connection with the rotating mechanism. The container has a bearing surface for bearing annular materials; The acupuncture mechanism is arranged above the bearing surface, and includes a driving assembly and a puncture assembly. The driving assembly has a moving end that reciprocates in the vertical direction. The puncture assembly is connected to the moving end in a transmission manner, and includes a puncture piece and a pressing piece. The puncture piece has a plurality of needles facing the bearing surface. The pressing piece is arranged opposite to the puncture piece and is located between the bearing surfaces. The pressing piece is provided with a needle hole for accommodating the needle body to pass through. An elastic reset piece is provided between the pressing piece and the puncture piece. The displacement mechanism includes a height adjustment component and a horizontal movement component, the height adjustment component is in transmission connection with the acupuncture mechanism, the horizontal movement component is in transmission connection with the height adjustment component, and the acupuncture mechanism is arranged on the horizontal movement component; The annular carbon-carbon product processing equipment provided in the present application is used to implement the method provided above.

[0015] Furthermore, the driving assembly comprises: A drive motor having a drive end; The eccentric wheel has a rotating end at one end and a moving end at the other end, and the rotating end is transmission-connected to the driving end; The limiting member is sleeved on the moving end so that when the rotating end rotates, the moving end performs reciprocating movement in the vertical direction.

[0016] The embodiments of the present invention bring the following beneficial effects: The present invention provides a processing method for annular carbon-carbon products. Specifically, the present invention does not adopt a processing method of cutting into rings after carbonization, but makes raw materials such as annular carbon cloth and annular mesh tire into prefabricated laminated rings, and then sequentially performs resin dipping, pressing, carbonization, high-temperature treatment and machining on the prefabricated laminated rings to obtain target carbon rings. Among them, the present invention replaces cutting into rings with prefabricated laminated rings and pressing and carbonization, thereby eliminating the risk of delamination in the cutting process and significantly shortening the production cycle of a single ring. At the same time, there is no need to replace worn parts in the cutting equipment, thereby shortening downtime and further improving production efficiency.

[0017] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention are realized and obtained by the structures particularly pointed out in the description, claims and drawings.

[0018] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those skilled in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 Schematic flow chart of the processing method of the annular carbon-carbon product provided by the embodiment of the present invention; Figure 2 Schematic structural diagram of the processing equipment for the annular carbon-carbon product provided by the embodiment of the present invention; Figure 3 Schematic structural diagram of the displacement mechanism in the processing equipment for the annular carbon-carbon product provided by the embodiment of the present invention; Figure 4 Schematic structural diagram of the rotating mechanism in the processing equipment for the annular carbon-carbon product provided by the embodiment of the present invention; Figure 5 Schematic structural diagram of the needle punching mechanism in the processing equipment for the annular carbon-carbon product provided by the embodiment of the present invention; Figure 6 Schematic structural diagram of the rotating motor in the processing equipment for the annular carbon-carbon product provided by the embodiment of the present invention; Figure 7 Schematic diagram of the positional relationship between the processing equipment for the annular carbon-carbon product and the annular raw material provided by the embodiment of the present invention.

[0021] Icon: 100 - Frame; 200 - Support device; 210 - Rotating mechanism; 211 - Rotating motor; 212 - Driving gear; 213 - Thrust roller bearing; 220 - Holding member; 300 - Needle punching mechanism; 310 - Driving component; 311 - Driving motor; 312 - Eccentric wheel; 313 - Mounting frame; 314 - Guide member; 320 - Needle punching member; 330 - Pressing member; 400 - Displacement mechanism; 410 - Height adjustment component; 420 - Horizontal movement component; 500 - Annular raw material. Specific embodiments

[0022] In order to make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions of the present invention in conjunction with the drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of protection of the present invention.

[0023] For the convenience of understanding this embodiment, next, the application scenario and design concept of the embodiment of the present application will be briefly introduced.

[0024] As the core link in the manufacturing of carbon-carbon composites, the forming quality of the preform directly determines the structural uniformity, density, and high-temperature stability of the final product.

[0025] The existing barrel cutting ring process has significant efficiency bottlenecks and quality risks: when wire cutting is performed on a carbon barrel after carbonization, the single-ring cutting time is as high as 0.5 h / sheet, and when the diameter of the circular ring > 1.2 m and the wall thickness > 200 mm, the processing time increases exponentially (measured up to 2.3 h / sheet). At the same time, the diamond wire saw needs to be replaced every 10 cuts due to high wear (the wire consumption cost accounts for 28%), which further leads to a delamination defect rate of over 35% and an edge collapse tolerance > ±1.2 mm, resulting in the interlayer shear strength of the product being only 60%-70% of the standard value.

[0026] Embodiment 1 Refer to Figure 1 , the processing method of the annular carbon-carbon product provided in this embodiment is as follows: S100, obtain raw materials. Among them, the raw materials at least include annular carbon cloth and annular mesh tire.

[0027] S200, prepare a prefabricated laminated ring based on the annular carbon cloth and the annular mesh tire.

[0028] S300, impregnate the prefabricated laminated ring to obtain a preliminary ring.

[0029] S400, press the preliminary ring and carbonize it until the thickness reaches a preset value to obtain a rough ring.

[0030] S500, perform high-temperature treatment and machining on the rough ring to obtain the target carbon ring.

[0031] Specifically, in this embodiment, raw materials such as annular carbon cloth and annular mesh tire are made into a prefabricated laminated ring. Subsequently, the prefabricated laminated ring is successively impregnated, pressed, carbonized, and subjected to high-temperature treatment and machining, thereby obtaining the target carbon ring.

[0032] Among them, in this embodiment, the raw materials are directly made into a prefabricated laminated ring, and the prefabricated laminated ring is impregnated, pressed, and carbonized, thereby replacing the processing method of cutting into rings, eliminating the delamination risk during cutting, and significantly shortening the production cycle of a single ring.

[0033] Moreover, since this embodiment does not adopt the processing method of cutting a carbon barrel into rings, there is no need to replace the worn parts in the cutting equipment, thereby shortening the downtime for replacing the cutting parts and further improving the production efficiency.

[0034] High-temperature treatment can shape the crude ring (prevent deformation) and remove impurities, and the specific temperature range is: 1800°C - 2200°C.

[0035] In this embodiment, step S200, the step of prefabricating a laminated ring based on the annular carbon cloth and the annular mesh carcass, includes: S210, laminating the annular carbon cloth and the annular mesh carcass to obtain a raw material ring.

[0036] S220, for each raw material ring, laying the raw material ring on a rotating platform, controlling the rotating platform to rotate, and vertically piercing the current raw material ring and the previous raw material ring located below the current raw material ring with a specified frequency by a piercing needle.

[0037] S230, at the same time, controlling the stripping plate to strip the hooked objects until a prefabricated laminated ring containing the target number of raw material rings is obtained.

[0038] In this embodiment, raw materials such as the annular carbon cloth and the annular mesh carcass are made into ring bodies, forming a plurality of ring bodies with different materials. Subsequently, the plurality of ring bodies with different materials are stacked and prepared into raw material rings through a hooking processing method. The plurality of raw material rings are processed into a prefabricated laminated ring through a hooking method again.

[0039] Among them, the rotating platform and the piercing needle move in coordination to achieve precise positioning and interlayer mechanical bonding of the annular carbon cloth and the mesh carcass during the lamination process. The dynamic cooperation of the rotating platform can ensure that the distribution and hooking of the stacked ring bodies are more uniform, the axial structure is tight, and the thickness deviation at each position of the prefabricated laminated ring is reduced.

[0040] Moreover, during the hooking process, the piercing needle vertically pierces and hooks adjacent raw material rings at a specified frequency. Combining with the stripping action of the stripping plate, the problem of looseness or misalignment between each ring body can be effectively avoided.

[0041] In addition, in this embodiment, raw material rings are made by stacking a plurality of ring bodies with different materials. The plurality of raw material rings are stacked, hooked, pressed, and carbonized to replace the processing method of cutting into rings, thereby eliminating the delamination risk during the cutting process and significantly shortening the production cycle of a single ring.

[0042] In this embodiment, step S220, for each of the raw material rings, the step of laying the raw material ring on a rotating platform, controlling the rotating platform to rotate, and vertically piercing the current raw material ring and the previous raw material ring located below the current raw material ring with a specified frequency by a piercing needle includes: S221, for each raw material ring, the piercing depth of the piercing needle into the raw material ring is a specified value.

[0043] In this embodiment, the piercing depth of the piercing needle is precisely limited to a specified value, so as to ensure the controllability of the piercing depth of the piercing needle during the interlayer hooking process.

[0044] The specified value of the penetration depth should enable the acupuncture needle to penetrate the current raw material ring and hook the underlying raw material ring structure. Moreover, it is necessary to avoid the tip of the acupuncture needle colliding with the rotating platform due to excessive penetration of the acupuncture needle, resulting in damage to the acupuncture needle.

[0045] In this embodiment, in step S220, for each raw material ring, the steps of laying the raw material ring on the rotating platform, controlling the rotation of the rotating platform, and vertically penetrating the acupuncture needle at a specified frequency to hook the current raw material ring and the previous raw material ring located below the current raw material ring further include: S222, taking the position where the acupuncture needle first penetrates the current raw material ring as the initial position.

[0046] S223, when the acupuncture needle corresponds to the initial position again, control the rotating platform, the acupuncture needle, and the stripping plate to stop running.

[0047] S224, drive the acupuncture needle to move a first length along the diameter of the raw material ring.

[0048] Specifically, in this embodiment, the initial position is the first penetration position of the acupuncture needle into the bottommost raw material ring to be hooked. The acupuncture needle repeatedly penetrates and withdraws from the raw material ring. After each penetration and withdrawal, the raw material ring rotates by a certain angle under the drive of the rotating platform, thereby changing the hooking position. When the acupuncture needle corresponds to the initial position again, that is, the raw material ring has rotated one full circle.

[0049] At this time, the rotating platform, the acupuncture needle, and the stripping plate stop running. At the same time, drive the acupuncture needle to move a first length along the diameter of the raw material ring, so that the current penetration position of the acupuncture needle is misaligned with the previous penetration position, thereby achieving misaligned hooking and avoiding the acupuncture needle penetrating into the already hooked position when hooking again.

[0050] After the movement of the acupuncture needle, repeat the penetration and withdrawal for hooking processing again, so as to achieve secondary hooking of the raw material ring to enhance the axial structure tightness and structural stability.

[0051] Moreover, each layer of the raw material ring can be hooked multiple times, and each hooking position is misaligned.

[0052] In this embodiment, in step S223, when the acupuncture needle corresponds to the initial position again, the step of controlling the rotating platform, the acupuncture needle, and the stripping plate to stop running further includes: S2231, drive the acupuncture needle to move a second length in the vertical direction and away from the rotating platform.

[0053] Wherein, the second length is the same as the thickness of the raw material ring.

[0054] Specifically, in this embodiment, after each layer of raw material ring rotates a complete circle, the hooking of this layer of raw material ring is completed. At this time, the driving thorn needle moves upward by a second length, and a new layer of raw material ring is laid on the raw material ring where the hooking ends. The second length is the same as the thickness of the raw material ring, which can ensure that the thorn needle completely disengages from the hooked raw material ring and can ensure that the thorn needle can hook the newly laid raw material ring to the same depth during the next piercing, so as to ensure that the hooking depth and strength between each layer of raw material rings are consistent.

[0055] In this embodiment, before step S220, the step of laying the raw material ring on the rotating platform includes: S211, laying a ring-shaped wooden mold layer on the rotating platform.

[0056] S212, laying a ring-shaped foam layer on the ring-shaped wooden mold layer.

[0057] Specifically, in this embodiment, a ring-shaped wooden mold layer and a foam layer are pre-laid on the rotating platform to form a support structure.

[0058] Among them, the rigid support of the ring-shaped wooden mold layer forms a stable ring-shaped reference surface on the surface of the rotating platform, eliminating the risk of deformation of the raw material ring laid due to the difference in the coefficient of thermal expansion of the traditional metal platform. The elastic buffering characteristic of the ring-shaped foam layer absorbs the vertical impact energy during the piercing process of the thorn needle, avoiding the disturbance of the fiber layer interface caused by the rebound vibration of the thorn needle.

[0059] Moreover, the synergistic effect of the ring-shaped wooden mold layer and the ring-shaped foam layer enables the raw material ring to maintain a flat compression state during the lamination process, avoiding defects such as wrinkles or warping of the raw material ring due to excessive local stress. In this embodiment, a physical isolation is formed by the ring-shaped wooden mold layer and the ring-shaped foam layer, avoiding the direct contact between the rotating platform and the raw material ring, avoiding the mixing of metal debris into the preform during the fiber hooking process, and at the same time, the compressibility of the ring-shaped foam layer adaptively adjusts the layer gap to ensure that the penetration depth of the thorn needle remains consistent after multiple layers are stacked.

[0060] In addition, the ring-shaped wooden mold layer and the ring-shaped foam layer can also provide a buffer distance for the thorn needle, avoiding the thorn needle hitting the rotating platform when the piercing depth is too deep, resulting in damage to the thorn needle.

[0061] In this embodiment, in step S220, the step of laying the raw material ring on the rotating platform, the raw material ring includes a plurality of arc-shaped laminated raw materials.

[0062] Among them, a plurality of arc-shaped laminated raw materials are end-to-end overlapped to form a raw material ring.

[0063] Specifically, during the production process, the arc-shaped structured raw materials can reduce the loss rate of raw material cutting. When laying the raw material ring, multiple arc-shaped laminated raw materials are overlapped in sequence to form a raw material ring. The overlapping interface cooperates with the subsequent needle hooking process through the interlocking effect to form a continuous carbon network structure across the seam during the carbonization stage, and finally the circumferential fracture toughness and interface bonding strength of the carbon ring under high temperature cyclic load are simultaneously enhanced.

[0064] S500, the step of subjecting the rough ring to high temperature treatment and machining to obtain a target carbon ring comprises: S510, polishing the rough ring after high temperature treatment to obtain a target carbon ring.

[0065] Specifically, in this embodiment, the rough ring is polished after high temperature treatment, so as to further improve the surface quality and dimensional accuracy of the carbon ring in the machining stage. The polishing process can remove the surface microcracks, burrs and carbide residues generated by the high temperature treatment, reduce the annular and radial surface roughness of the carbon ring, and reduce the stress concentration caused by surface defects in subsequent use.

[0066] See also Figures 2 to 7 The annular carbon-carbon product processing equipment provided in this embodiment includes: a support component, a needling mechanism 300 and a displacement mechanism 400.

[0067] The supporting assembly includes a rotating mechanism 210 and a rotating containing member 220. The containing member 220 is arranged on the bearing part and is connected to the rotating mechanism 210 in a transmission manner. The containing member 220 has a bearing surface for containing the annular material. The acupuncture mechanism 300 is arranged above the bearing surface. The acupuncture mechanism 300 includes a driving assembly 310 and a puncture assembly. The driving assembly 310 has a moving end for reciprocating in the vertical direction. The puncture assembly is connected to the moving end in a transmission manner and includes a puncture member 320 and a pressing member 330. The puncture member 320 has a plurality of needles facing the bearing surface. The pressing member 330 is arranged opposite to the puncture member 320 and is located between the bearing surfaces. The pressing member 330 is provided with a needle hole for accommodating the needle body to pass through. An elastic reset member is provided between the pressing member 330 and the puncture member 320.

[0068] In addition, the displacement mechanism 400 in this embodiment includes a height adjustment component 410 and a horizontal movement component 420 . The height adjustment component is transmission-connected to the acupuncture mechanism 300 . The horizontal movement component 420 is transmission-connected to the height adjustment component 410 . The acupuncture mechanism 300 is disposed on the horizontal movement component 420 .

[0069] It should be noted that the annular carbon-carbon product processing equipment provided in this embodiment is used to implement the method provided above, and the annular material in this embodiment at least includes carbon cloth and mesh tire, and the annular carbon cloth and the annular mesh tire are stacked to form an annular raw material 500.

[0070] Specifically, in this embodiment, the carbon-carbon product processing equipment further includes a frame 100.

[0071] The frame 100 has a bearing portion. The support device 200 includes a rotating mechanism 210 and a rotating container 220. The rotating mechanism 210 is arranged on the frame 100, and the container 220 is arranged on the bearing portion and is in transmission connection with the rotating mechanism 210. The container 220 has a bearing surface for bearing the annular material.

[0072] During processing, the annular raw material 500 is placed on the container 220 in the support device 200, and the rotating mechanism 210 drives the container 220 to rotate to realize the continuous rotational processing of the annular raw material 500. During the rotation of the annular raw material 500, the driving component 310 in the needle punching mechanism 300 drives the needle punching member 320 and the pressing member 330 to move reciprocally up and down for the hook-up processing of various raw materials.

[0073] When moving down, the pressing member 330 first contacts the annular raw material 500 to press the annular raw material 500. Subsequently, the pressing member 330 remains stationary, and the needle punching member 320 continues to move down while compressing the elastic reset member. The needle body on the needle punching member 320 passes through the needle hole on the pressing member 330 and penetrates into the annular raw material 500.

[0074] After the needle body penetrates to the preset depth, the needle punching member 320 moves up under the drive of the driving component 310, so as to realize the hook-up of the stacked multiple annular raw materials 500. During the upward movement of the needle punching member 320, the elastic reset member undergoes a restorative deformation. After the needle punching member 320 moves up to a certain height, the elastic reset member returns to its original state, and the needle punching assembly continues to move up to make the pressing member 330 move up to the initial position to cancel the pressing on the annular raw material 500. At this time, one hook-up is completed. Subsequently, the rotating mechanism 210 drives the container 220 to rotate to make the annular raw material 500 rotate, and the needle punching mechanism 300 is driven again to perform the hook-up action until all areas of the annular raw material 500 are hooked up.

[0075] The annular carbon-carbon product processing equipment provided in this embodiment realizes the continuous processing of a single ring through the support device 200 and the needle punching mechanism 300, thereby shortening the manufacturing cycle of a single ring. Moreover, since this embodiment can directly process and form a ring body without cutting into a ring after forming a cylinder, the cutting process of cutting equipment such as diamond wire saws is omitted, avoiding delamination and edge damage caused by internal stress concentration of the material during cutting. At the same time, the time for replacing the components of the cutting equipment is also saved, thereby realizing the improvement of processing efficiency while ensuring production efficiency.

[0076] In this embodiment, the driving component 310 includes: a driving motor 311, an eccentric wheel 312, and a limiting member.

[0077] Among them, the drive motor 311 has a drive end. The eccentric wheel 312 has a rotating end at one end and a moving end at the other end. The rotating end is drivingly connected to the drive end. The limiting member is sleeved on the moving end so that when the rotating end rotates, the moving end makes a reciprocating movement in the vertical direction.

[0078] Among them, in this embodiment, the drive assembly 310 uses an eccentric wheel 312 for transmission, and the limiting member restricts the moving end so that the moving end makes a vertical movement, thereby ensuring that the movement direction of the needle body is perpendicular to the containing member 220 and ensuring the piercing angle of the needle body.

[0079] In this embodiment, the needle punching mechanism 300 further includes: a mounting frame 313 and a guiding member 314. The mounting frame 313 is disposed above the bearing surface, and the drive assembly 310 is disposed on the mounting frame 313. The guiding member 314 is disposed at the bottom end of the mounting frame 313 and extends in the vertical direction, and the needle punching assembly is slidably engaged with the guiding member 314.

[0080] Specifically, the mounting frame 313 in this embodiment is a gantry frame. The two ends of the gantry frame are respectively disposed on both sides of the bearing portion of the frame 100, and the beam body of the gantry frame is erected above the bearing surface. The drive assembly 310 is disposed on the gantry frame. After the needle punching mechanism 300 is drivingly connected to the drive assembly 310, the needle body can be suspended directly above the bearing surface, and the tip portion of the needle is oriented towards the annular raw material 500 on the bearing surface.

[0081] Among them, after the needle punching assembly is cooperatively connected with the guiding member 314, both the needle punching member 320 and the pressing member 330 move along the guiding direction of the guiding member 314, further restricting the moving directions of the needle punching member 320 and the pressing member 330, so that the needle punching member 320 can perform a hooking action in a vertically piercing manner.

[0082] In this embodiment, the needle punching member 320 includes a needle plate, which is slidably engaged with the guiding member 314 and is drivingly connected to the moving end, and a plurality of needle bodies are all disposed on the needle plate.

[0083] All the needle bodies in this embodiment are disposed on the needle plate, and the needle plate is slidably engaged with the guiding member 314 so that all the needle bodies can be synchronously pierced and are all vertically pierced.

[0084] Specifically, in this embodiment, the needle punching density ≥ 25 needles / cm², and the guiding member 314 in this embodiment uses a high-precision linear guide rail (repeated positioning accuracy ±1 μm), thereby suppressing the vibration of the needle punching head, and optimizing the roundness error from more than 2 mm in the traditional case to less than 1 mm.

[0085] In this embodiment, a plurality of needle bodies are spaced apart on the needle plate and are arranged in a trapezoid.

[0086] Specifically, the trapezoidal spaced arrangement can avoid interference between adjacent needle bodies, thereby reducing local stress concentration of the annular raw material 500. Moreover, in this embodiment, the trapezoid is an isosceles trapezoid, the short side of the trapezoid is located near the inner ring of the ring, and the long side of the trapezoid is located near the outer ring of the ring. In this structure, after multiple needling, the needling area can be annular, making the needling hook connection more uniform.

[0087] Specifically, in this embodiment, the elastic resetting member is a high-strength spring, and the pressing member 330 is an alloy wire stripping plate to realize synchronous stripping of the hooked object.

[0088] Moreover, the needling member 320 in this embodiment is an alloy needle matrix (optimized arrangement with a diameter of 2.02 mm and a pitch of 10 mm × 10 mm) to ensure the needling density.

[0089] In this embodiment, the rotating mechanism 210 includes a rotating motor 211 and a driving gear 212. The rotating motor 211 is arranged inside the frame 100. The driving gear 212 is arranged on the bearing part and is in transmission connection with both the rotating motor 211 and the containing member 220.

[0090] The rotating motor 211 realizes transmission connection with the containing member 220 through the driving gear 212.

[0091] Moreover, the rotating mechanism 210 in this embodiment further includes a thrust roller bearing 213. The thrust roller bearing 213 is arranged between the containing member 220 and the driving gear 212 to realize transmission connection between the containing member 220 and the driving gear 212.

[0092] Specifically, in this embodiment, the driving gear 212 realizes transmission connection with the containing member 220 through the thrust roller bearing 213, thereby ensuring smooth rotation of the containing member 220.

[0093] In this embodiment, the annular carbon-carbon product processing equipment further includes: a mounting part and a displacement mechanism 400. The mounting part is arranged above the bearing part. The displacement mechanism 400 is arranged on the mounting part. The displacement mechanism 400 includes a height adjustment component 410, and the height adjustment member is in transmission connection with the needling mechanism 300.

[0094] Specifically, the installation part in this embodiment is the beam body of the gantry. The height adjustment component 410 is arranged on the beam body of the gantry. The needle punching mechanism 300 is in transmission connection with the height adjustment component 410, and the height adjustment component 410 can adjust the height of the needle punching mechanism 300. After the annular raw material 500 rotates one circle, a processing cycle is completed. It is necessary to lay another layer of annular raw material 500 on the annular raw material 500 after the hooking is completed and hook the new annular raw material 500 again. At this time, the height adjustment component 410 can be driven to lift the height of the needle punching mechanism 300, so that the needle punching mechanism 300 can hook and process the new layer of annular raw material 500 to ensure that the penetration depth of each layer is the same and the bonding force between layers is uniform.

[0095] Specifically, the height adjustment component 410 in this embodiment includes a height adjustment member and a moving frame. The height adjustment member is arranged on the installation part. The moving frame is in transmission connection with the moving end of the height adjustment member, and the needle punching mechanism 300 is in transmission connection with the height adjustment member through the moving frame.

[0096] In this embodiment, the moving frame is connected to the moving end of the height adjustment member, so that the moving frame can move along with the moving end of the height adjustment member to realize the height adjustment of the needle punching mechanism 300.

[0097] Among them, the displacement mechanism 400 in this embodiment further includes a horizontal movement component 420. The horizontal movement component 420 is arranged on the moving frame, and the needle punching mechanism 300 is arranged on the horizontal movement component 420.

[0098] The horizontal movement component 420 in this embodiment is arranged on the moving frame. When the moving frame moves in the vertical direction, the horizontal movement component 420 moves along with the moving frame and drives the needle punching mechanism 300 to move together.

[0099] Moreover, the needle punching mechanism 300 in this embodiment is arranged on the horizontal movement component 420, and the needle punching mechanism 300 can be driven by the horizontal movement component 420 to perform horizontal displacement, so that the needle punching positions of each layer of annular raw material 500 can be arranged staggeredly, avoiding the same position being punctured multiple times, resulting in low stability of the hooking structure.

[0100] Specifically, the height adjustment member in this embodiment is a high-precision ball screw module, and the horizontal movement component 420 is a linear motor.

[0101] It should be noted that the annular raw material 500 can be formed by the head-to-tail lap joint of multiple arc-shaped materials. This combination method can better save raw materials and is easier to lay materials. Specifically, in this embodiment, there are four arc-shaped materials. The four arc-shaped materials have the same shape and volume. After the head and tail of the four arc-shaped materials are lap-jointed, the annular raw material 500 is formed.

[0102] In addition, in the description of the embodiments of the present invention, unless otherwise clearly defined and limited, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0103] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0104] Finally, it should be noted that the above embodiments are only specific embodiments of the present invention, used to illustrate the technical solutions of the present invention, rather than limiting them. The protection scope of the present invention is not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art within the technical scope disclosed by the present invention can still modify the technical solutions described in the foregoing embodiments, or can easily conceive of changes, or make equivalent replacements for some of the technical features. These modifications, changes, or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A processing method for a circular carbon-carbon product, characterized in that, The method comprises: Obtaining raw materials; wherein the raw materials at least include annular carbon cloth and annular web tire; Preparing a prefabricated laminated ring based on the annular carbon cloth and the annular web tire; Dipping the prefabricated laminated ring into glue to obtain a primary ring; Pressing and carbonizing the preliminary ring until the thickness reaches a preset value to obtain a rough ring; The rough ring is subjected to high temperature treatment and machining to obtain the target carbon ring.

2. The method according to claim 1, characterized in that The step of prefabricating a laminated ring based on the annular carbon cloth and the annular web tire comprises: The annular carbon cloth and the annular web are stacked to obtain a raw material ring; For each raw material ring, the raw material ring is laid on a rotating platform, the rotating platform is controlled to rotate, and the needle is inserted vertically at a specified frequency to connect the current raw material ring and the previous raw material ring located below the current raw material ring; At the same time, the stripping plate is controlled to strip the interconnected objects until the prefabricated laminated ring containing the target number of raw material rings is obtained.

3. The method according to claim 2, wherein The step of laying each raw material ring on the rotating platform, controlling the rotating platform to rotate, and vertically piercing the needle at a specified frequency to connect the current raw material ring and the previous raw material ring located below the current raw material ring includes: For each of the raw material rings, the penetration depth of the piercing needle into the raw material ring is a specified value.

4. The method according to claim 3, wherein The step of laying the raw material ring on the rotating platform, controlling the rotating platform to rotate, and vertically piercing the needle at a specified frequency to connect the current raw material ring and the previous raw material ring located below the current raw material ring also includes: The position where the needle first penetrates the current raw material ring is taken as the initial position; When the needle corresponds to the initial position again, the rotating platform, the needle and the stripping plate are controlled to stop running; The needle is driven to move a first length along the diameter of the stock ring.

5. The method according to claim 4, wherein The step of controlling the rotating platform, the needle and the stripping plate to stop running when the needle corresponds to the initial position again further includes: driving the needle to move a second length in a vertical direction and in a direction away from the rotating platform; Wherein, the second length is the same as the thickness of the raw material ring.

6. The method according to claim 2, characterized in that, Before the step of laying the raw material ring on the rotating platform, the method includes: Laying an annular wooden formwork layer on the rotating platform; An annular foam layer is laid on the annular wooden formwork layer.

7. The method according to any one of claims 2-6, characterized in that, In the step of laying the raw material ring on the rotating platform, the raw material ring includes a plurality of arc-shaped stacked raw materials; A plurality of the arc-shaped stacked raw materials are overlapped end to end to form the raw material ring.

8. The method according to claim 1, characterized in that, The step of subjecting the rough ring to high temperature treatment and machining to obtain the target carbon ring comprises: The rough ring after high temperature treatment is polished to obtain the target carbon ring.

9. A processing device for annular carbon-carbon products, characterized in that, include: The supporting assembly comprises a rotating mechanism and a rotating containing member, wherein the containing member is used to carry the raw material and is drivingly connected to the rotating mechanism, and the containing member has a bearing surface for holding the annular material; A needling mechanism is arranged above the bearing surface, the needling mechanism comprises a driving assembly and a needling assembly, the driving assembly has a moving end that performs reciprocating movement in a vertical direction, the needling assembly is transmission-connected to the moving end, and comprises a needling piece and a pressing piece, the needling piece has a plurality of needle bodies facing the bearing surface, the pressing piece is arranged opposite to the needling piece and is located between the bearing surfaces, the pressing piece is provided with a needle hole for accommodating the needle body to pass through, and an elastic reset piece is provided between the pressing piece and the needling piece; The displacement mechanism comprises a height adjustment component and a horizontal movement component, wherein the height adjustment component is in driving connection with the acupuncture mechanism, the horizontal movement component is in driving connection with the height adjustment component, and the acupuncture mechanism is arranged on the horizontal movement component; The annular carbon-carbon product processing equipment is used to implement the method according to any one of claims 1-7.

10. The annular carbon-carbon product processing equipment according to claim 9, characterized in that, The drive assembly comprises: A drive motor having a drive end; An eccentric wheel, one end of which is a rotating end and the other end is the moving end, and the rotating end is drivingly connected to the driving end; The limiting member is sleeved on the movable end so that when the rotating end rotates, the movable end performs reciprocating movement in the vertical direction.

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