Carbon fiber round link chain layer pre-pressing device and structure

Abstract

This invention provides a carbon fiber circular link chain layup preloading device and structure, relating to the field of carbon fiber composite material molding tooling technology. It includes a winding module group, a connecting module group, and a compaction module group. The winding module group comprises a central winding block and two edge winding blocks, which, after being spliced, form a surrounding winding groove on the outer periphery for winding the chain link preform. Two connecting modules clamp and lock the winding module group along the thickness direction. Two compaction modules are arranged opposite each other, with compaction grooves on their inner sides, allowing for bidirectional tightening of the preloaded preform along the width direction. The winding module is a detachable structure, allowing it to pass through the finished preform during assembly to achieve interlocking and series processing of the chain links. The compaction module is used to achieve the preloading effect. This invention can continuously produce multi-section interlocking carbon fiber circular link chain preforms, with convenient demolding and uniform layup compaction. It can mass-produce lightweight, high-load-bearing, corrosion-resistant, and flame-retardant carbon fiber circular link chains, suitable for special heavy-load conditions such as aircraft carriers, ships, and transport aircraft.

Description

Technical Field

[0001] This invention relates to the field of carbon fiber composite material molding tooling technology, and in particular to a carbon fiber circular chain layup pre-compression device and structure. Background Technology

[0002] Steel circular links are widely used in heavy-duty transportation scenarios such as aircraft carriers, ships, and transport aircraft. However, they are heavy and have poor corrosion resistance and flame retardancy, and are prone to rust and failure after long-term service.

[0003] Existing lightweight carbon fiber circular link chains cannot be formed using the welding and shaping processes of metal chains, requiring the use of molds for hot pressing to prepare preforms. Current conventional carbon fiber layup tooling can only produce single carbon fiber rings, and cannot achieve interlocking and series processing of rings; traditional winding molds are integral structures, making it difficult to demold and remove the preform after winding, and they lack the ability to continuously process multiple interlocking chain links; at the same time, conventional compaction tooling has a single clamping method, resulting in poor compaction uniformity of the layup preform, and insufficient mechanical strength of the chain links after molding, which cannot meet the load-bearing and weather-resistant requirements of heavy-load shipboard operations, thus restricting the mass production and continuous manufacturing and engineering promotion of carbon fiber circular link chains.

[0004] Therefore, it is necessary to propose a carbon fiber circular chain layup preloading device and structure to solve or at least alleviate the above-mentioned defects. Summary of the Invention

[0005] The main objective of this invention is to provide a carbon fiber circular chain layup preloading device and structure to solve the problems of single compaction method and poor compaction uniformity of layup preforms in the existing technology.

[0006] To achieve the above objectives, the present invention provides a carbon fiber circular link chain layup preloading device, comprising a winding module group, a connecting module group, and a compaction module group. The winding module group includes a central winding block and two edge winding blocks arranged opposite each other along the length direction of the circular link chain. The connecting module group includes two connecting modules spaced apart along the thickness direction of the circular link chain. The compaction module group includes two compaction modules arranged opposite each other along the width direction of the circular link chain. The intermediate winding block is spliced ​​between the two edge winding blocks. The outer peripheral side of the winding module group is recessed to form a winding groove that is arranged around itself in the circumferential direction. The winding groove is used for winding and connecting the prefabricated body of the circular chain. The winding module group is provided with a connecting module at the top and bottom respectively, and the side winding blocks and the middle winding blocks that are spliced ​​together are connected into one unit through the connecting modules; The inner recess of the compaction module forms a compaction groove for placing the carbon fiber preform. The preform of the circular link chain is pre-compressed by fastening the two compaction modules inward along the width direction of the circular link chain.

[0007] Preferably, the edge winding block is U-shaped, and the middle winding block extends along the length direction of the circular chain and there are two of them. The two middle winding blocks are arranged at intervals along the width direction of the circular chain so as to be spliced ​​between the corresponding extension sections of the opening ends of the two edge winding blocks. The outer middle part of the edge winding block and the middle winding block are respectively recessed to form winding grooves corresponding to their own shapes. The winding groove is formed by splicing multiple winding grooves.

[0008] Preferably, the dimensions of the winding groove and the compaction groove are matched with the dimensions of the circular link chain.

[0009] Preferably, bolt holes are provided at the top and bottom of the middle winding block and at the top and bottom of the opening of the side winding block, respectively. The connecting module is connected to the side winding block and the middle winding block by bolts passing through the connecting module and the bolt holes.

[0010] Preferably, the intermediate winding block has two bolt holes, which are respectively distributed at both ends of the connecting module.

[0011] Preferably, the compaction module is rectangular, and the compaction groove is formed by a recess on the side of the compaction module facing the circular chain.

[0012] Preferably, each end of the compaction module has a bolt through hole extending along the width of the circular link chain. The two compaction modules are pre-compressed by passing through the two bolt through holes and tightening them.

[0013] Preferably, the inner ring width of the winding module group is greater than the thickness of the circular chain.

[0014] Preferably, the inner ring side of the edge winding block is provided with notches and grooves on both the top and bottom for interlocking of adjacent circular chains.

[0015] This application also provides a carbon fiber circular link chain layup preloading structure, including a plurality of carbon fiber circular link chain layup preloading devices as described above, wherein the plurality of carbon fiber circular link chain layup preloading devices pass through each other to be fastened together.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides a carbon fiber circular link chain layup preloading device and structure, which consists of a winding module group composed of a detachable intermediate winding block and an edge winding block, and a connecting module to achieve modular assembly and disassembly. During assembly, the winding module can be inserted into a pre-formed body, enabling continuous production of interlocking carbon fiber circular link chains. The winding groove and compaction groove are matched with the chain link specifications, resulting in neat winding layup. With the bidirectional preloading of the double compaction module, the pre-formed body is compacted evenly and densely. The winding module can be disassembled and demolded, making it easy to remove the pre-formed body. The entire tooling can be disassembled and assembled cyclically, realizing continuous mass production of carbon fiber circular link chain pre-formed bodies. The formed carbon fiber circular link chains have the advantages of high mechanical strength, corrosion resistance, flame retardancy and weather resistance, making them suitable for heavy-duty special application scenarios such as ships and transport aircraft. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional schematic diagram of a layup preloading device in one embodiment of the present invention; Figure 2 This is an exploded schematic diagram of a ply preloading device according to an embodiment of the present invention; Figure 3 This is a three-dimensional schematic diagram of a ply preloading structure in one embodiment of the present invention.

[0019] The objectives, features, and advantages of this invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings.

[0020] Explanation of icon numbers: 10. Winding module; 110. Intermediate winding block; 120. Edge winding block; 121. Notch groove; 130. Winding groove; 140. Bolt hole; 20. Connecting module; 30. Compacting module; 310. Compacting groove; 320. Bolt through hole. Detailed Implementation

[0021] It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0022] 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 a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0023] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0024] Furthermore, the use of terms such as "first" and "second" in this invention is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0025] Please see the appendix Figure 1-3 A carbon fiber circular link chain layup preloading device according to one embodiment of the present invention includes a winding module group, a connecting module group, and a compaction module group. The winding module group includes a central winding block 110 and two side winding blocks 120 arranged opposite each other along the length direction of the circular link chain. The connecting module group includes two connecting modules 20 spaced apart along the thickness direction of the circular link chain. The compaction module group includes two compaction modules 30 arranged opposite each other along the width direction of the circular link chain. The central winding block 110 is spliced ​​between the two side winding blocks 120. The outer periphery of the block group has a recessed winding groove 130 that is arranged around its circumference. The winding groove 130 is used for winding and connecting the preform of the circular link chain. The upper and lower parts of the winding module group are respectively provided with a connecting module 20. The edge winding block 120 and the middle winding block 110 are connected into a whole through the connecting module 20. The inner side of the compaction module 30 has a recessed compaction groove 310 for placing the carbon fiber preform. The two compaction modules 30 are fastened inward along the width direction of the circular link chain to pre-compress the preform of the circular link chain.

[0026] Specifically, during the assembly stage, two edge winding blocks 120 arranged opposite each other along the length of the circular chain are first taken, and the middle winding block 110 is precisely aligned and spliced ​​in the middle position of the two edge winding blocks 120 to form a complete winding module assembly. A winding groove 130 continuously recessed along the complete circumference is integrally machined on the outer circumferential side of the winding module assembly. After the winding module assembly is assembled, two connecting modules 20 distributed at intervals along the thickness direction of the circular chain are taken and respectively attached to the upper and lower surfaces of the winding module assembly. The connecting modules 20 are used to connect the spliced ​​edges. The winding block 120 and the intermediate winding block 110 are clamped and locked together as a whole. The clamping force from both the top and bottom eliminates the gaps between the blocks, preventing the edge winding block 120 and the intermediate winding block 110 from slipping, opening, or misaligning during the carbon fiber layup winding process, and ensuring that the complete outline of the winding groove 130 does not deform. The carbon fiber prepreg tape is laid and wound around the winding groove 130 completely. The side wall of the winding groove 130 limits the carbon fiber preform around its entire circumference, thereby constraining the layup trajectory to form a single-section circular chain blank. After the layup winding process is completed, the carbon fiber preform is placed... The winding module assembly is placed between two compaction modules 30 arranged opposite each other along the width of the circular chain. The compaction modules 30 are recessed inward on their inner surfaces to form compaction grooves 310. The chain ring blank with the preform wound completely is contained within the compaction grooves 310. The two compaction modules 30 are driven to simultaneously compress and tighten inward along the width of the circular chain. The bidirectional uniform extrusion pressure can expel the air trapped between the layers of the carbon fiber preform layer by layer, eliminate interlayer gaps, and prevent delamination and void defects in the formed preform. After the pre-compression process is completed, the compaction mold is released. The fastening structure of block 30 is removed, the connecting modules 20 on the upper and lower sides are removed, and then the winding module group composed of the edge winding block 120 and the middle winding block 110 is disassembled, so that the pre-pressed single-section circular link chain preform can be completely removed; the entire device adopts a split modular detachable structure, the disassembly and assembly process of each module is simple, and the single-section chain link layup pre-pressing process can be carried out repeatedly. After the winding module group is disassembled and assembled, it can be inserted into the preformed body to meet the continuous processing requirements of multi-section interlocking series circular link chains. The final formed circular link chain preform has a dense and regular layered arrangement and stable overall dimensional accuracy.

[0027] In a preferred embodiment of the present invention, the edge winding block 120 is U-shaped, and the middle winding block 110 extends along the length direction of the circular chain and there are two of them. The two middle winding blocks 110 are arranged at intervals along the width direction of the circular chain so as to be spliced ​​between the corresponding extension segments of the opening ends of the two edge winding blocks 120. The outer middle parts of the edge winding block 120 and the middle winding block 110 are respectively recessed to form winding grooves corresponding to their own shapes. After splicing multiple winding grooves, the winding groove 130 is formed.

[0028] It should be noted that two U-shaped edge winding blocks 120 are placed facing each other along the length of the circular chain, with the open extensions of the two U-shaped edge winding blocks 120 directly opposite each other. Two intermediate winding blocks 110 extending along the length of the circular chain are taken and evenly spaced along the width of the circular chain. These intermediate winding blocks 110 are then inserted and assembled between the open extensions of the two sets of U-shaped edge winding blocks 120, completing the segmented splicing assembly of the entire winding module group. Independent winding grooves that perfectly match the outer contour surface are individually machined on the outer center of each U-shaped edge winding block 120 and the outer center of each intermediate winding block 110. This process is repeated after all the edge winding blocks 120 and intermediate winding blocks 110 are in place. After being assembled, all the segmented independent winding grooves are closed end to end, forming a complete, continuous, and uniformly contoured integral winding groove 130. The winding groove 130 is divided into multiple independent grooves for separate processing, eliminating the need for machining a large-size integral annular groove as a whole. This significantly reduces the machining difficulty of large irregular annular cavities and reduces tool wear and machining errors caused by overall machining. The contours of each segmented winding groove match the shape of the circular chain. When the carbon fiber preform is wound along the segmented grooves, each layup can be individually constrained by the corresponding groove sidewall, effectively preventing local carbon fiber layup deviation, stacking, and uneven thickness. This ensures that the outer contour and cross-sectional dimensions of each section of the circular chain preform remain highly consistent, reducing the amount of subsequent hot pressing molding and shaping work.

[0029] In a preferred embodiment of the present invention, the dimensions of the winding groove 130 and the compaction groove 310 are matched with the dimensions of the circular chain.

[0030] It is important to note that when processing the winding groove 130 of the winding module assembly, the inner diameter and cavity cross-sectional dimensions of the winding groove 130 must be designed and processed in strict accordance with the outer contour diameter, cross-sectional width, and cross-sectional thickness of the target finished carbon fiber circular link chain. When processing the compaction groove 310 inside the compaction module 30, the cavity specifications must be adopted simultaneously, which are completely consistent with the cross-section and shape of the target circular link chain, so as to achieve a one-to-one match between the dimensions of the winding groove 130 and the compaction groove 310 and the dimensions of the finished circular link chain. The dimensionally matched winding groove 130 can ensure that the carbon fiber preform completely conforms to the design shape of the circular link chain when winding and laying, avoiding grooves. Excessive channel size can cause loose layup and bulging, while insufficient channel size can cause fiber compression and damage to the preform fibers. The size-matched compaction groove 310 allows the entire circular link chain preform to be completely embedded in the cavity. During the pre-compression process, the entire ring of the preform is subjected to synchronous and uniform force, avoiding problems such as excessive local pressure causing fiber crushing or insufficient local pressure leaving air bubbles between layers. The final pre-compressed circular link chain preform has a cross-section and external dimensions that fully meet the design standards, eliminating the need for manual secondary grinding and shaping, and effectively improving the dimensional qualification rate and mechanical performance stability of the finished carbon fiber circular link chain.

[0031] In a preferred embodiment of the present invention, bolt holes 140 are respectively provided at the top and bottom of the intermediate winding block 110 and at the top and bottom of the opening of the side winding block 120. The connecting module 20 is connected into a whole by bolts passing through the connecting module 20 and the bolt holes 140.

[0032] It is worth noting that bolt holes 140 are respectively opened on the upper and lower surfaces of each intermediate winding block 110, and bolt holes 140 are also opened on the upper and lower surfaces of the openings at both ends of each U-shaped edge winding block 120. The two connecting modules 20 are respectively attached to the upper and lower surfaces of the winding module assembly, so that the through holes on the surface of the connecting module 20 are precisely aligned with the bolt holes 140 at the corresponding positions of the intermediate winding block 110 and the edge winding block 120. Fastening bolts are used to connect the upper connecting module 20 and the upper bolt holes 140 of the winding block from top to bottom, and the lower connecting module 20 is connected to the bolt holes 140 at the bottom of the winding block. The bolt holes 140 of the intermediate winding block 110 are aligned with the through holes of the connecting module 20. The bolts are then tightened and the matching nuts are tightened to lock them in place. This ensures that the spliced ​​parts form a whole and form a stable winding groove 130 at both ends. When finally demolding, the bolts can be unscrewed and the parts can be removed separately.

[0033] In a preferred embodiment of the present invention, the intermediate winding block 110 has two bolt holes 140, which are respectively distributed at both ends of the connecting module 20.

[0034] It is worth noting that two independent bolt holes 140 are opened on the upper and lower surfaces of the single-block intermediate winding block 110, and the two bolt holes 140 are arranged at the left and right ends of the connecting module 20 along the length of the connecting module 20 itself to ensure uniform overall mechanical properties.

[0035] Furthermore, the compaction module 30 is rectangular in shape, and the compaction module 30 has a compaction groove 310 recessed on the side facing the circular chain.

[0036] It should be noted that the compaction module 30 is cast as a rectangular solid block structure. On the inner side of the rectangular compaction module 30 facing the winding module group and the circular link chain preform, a compaction groove 310 is integrally recessed and formed. The rectangular solid block body itself has stronger structural rigidity. During the extrusion operation, the compaction module 30 body is not prone to bending or warping deformation, and can stably maintain the complete cavity contour of the compaction groove 310. The compaction groove 310 integrally recessed on the inner side can completely cover the entire outer contour of the circular link chain preform. During the pre-compression operation, the preform is constrained by the cavity sidewall and will not slide laterally or twist under the extrusion force.

[0037] Furthermore, each end of the compaction module 30 is provided with a bolt through hole 320 extending along the width direction of the circular link chain. The two bolts are passed through the two bolt through holes 320 and tightened to compress the two compaction modules 30 to pre-compress the preform of the circular link chain.

[0038] It should be understood that bolt through holes 320, which are fully penetrating along the width direction of the circular chain, are respectively opened at the left and right ends of the two rectangular compaction modules 30. The winding module assembly carrying the carbon fiber preform is clamped and placed between the two compaction modules 30, aligning the bolt through holes 320 at both ends of the two compaction modules 30. The fastening bolts are then passed through the through holes of the left and right compaction modules 30 in sequence along the width direction of the circular chain, and the matching nuts are screwed onto both ends of the bolts. The nuts at both ends are gradually rotated to reduce the distance between the two compaction modules 30, so that the two compaction modules 30 face each other inward. The precast body is clamped; the synchronous bolts at both ends can apply symmetrical and uniform extrusion force to the circular chain precast body inside the compaction groove 310, avoiding dimensional defects such as one side of the precast body being too thin and the other side having loose layers caused by unilateral compaction; the operator can precisely adjust the bolt tightening torque to control the pre-compression pressure according to the compaction process requirements of the carbon fiber precast body, adapting to the processing of circular chain precast bodies of different thicknesses and fiber layers; after the pre-compression is completed, only the nuts at both ends need to be loosened to quickly separate the two compaction modules 30 and take out the winding module group that carries the precast body inside. The operation is convenient and does not require complicated tooling.

[0039] It is worth mentioning that the two compaction modules 30 can also be compacted by pneumatic or hydraulic means, and those skilled in the art can choose according to actual needs.

[0040] Furthermore, the inner loop width of the winding module group is greater than the thickness of the circular chain.

[0041] It should be noted that when processing the dimensions of each block of the winding module group, the inner ring width of the assembled winding module group is uniformly set to be greater than the thickness of the target finished carbon fiber circular link chain itself. The inner ring of the winding module group is reserved with a through clearance space greater than the thickness of the chain link. After the first section of the circular link chain preform is laid up and pre-pressed, a new set of winding module groups can be directly passed through the inner ring of the already formed first section of the circular link chain preform for assembly. Relying on the clearance space reserved in the inner ring, the new winding module group and the old preform are interlocked, thereby completing the interlocking assembly of two adjacent sections of the circular link chain. The layup and winding operation of the next section of the circular link chain can be carried out continuously without interruption, eliminating the extra process of manually interlocking and connecting the individual chain links. This greatly improves the overall preparation efficiency of multi-section interlocking carbon fiber circular link chains and realizes continuous cyclic processing.

[0042] Furthermore, the inner ring side of the edge winding block 120 is provided with notches and grooves 121 on both the upper and lower sides for interlocking of adjacent circular chains.

[0043] It is important to note that inwardly recessed notches 121 are machined at the upper and lower edges of the inner ring side of the U-shaped edge winding block 120. All notches 121 are uniformly arranged facing the center of the inner ring of the winding module group. When processing multi-section interlocking circular links and inserting the new winding module group into the preformed body, the sidewalls of adjacent circular links can be embedded in the notches 121 above and below the inner ring of the edge winding block 120. The notches 121 provide a lateral avoidance channel for the chain link insertion action, avoiding hard compression and scratching between the outer wall of the preformed circular link and the sidewall of the inner ring of the winding block. Relying on the avoidance and protection function of the notches 121, it can effectively prevent fiber fuzzing, scratches, and local fiber peeling damage on the outer surface of the carbon fiber preform, completely protect the integrity of the fiber structure on the surface of the circular link preform, ensure smooth and interference-free interlocking and series assembly, and prevent the local mechanical strength of the formed circular link from decreasing due to surface fiber damage.

[0044] This application also provides a carbon fiber circular link chain layup preloading structure, including a plurality of carbon fiber circular link chain layup preloading devices as described above, wherein the plurality of carbon fiber circular link chain layup preloading devices pass through each other to be fastened together.

[0045] Understandably, multiple complete and independent carbon fiber circular link chain layup pre-compression devices are prepared. Each device can independently complete the winding and pre-compression process of a single circular link chain preform. After a single device completes the pre-compression processing of a single circular link chain preform, the preform is temporarily stored in the winding module group without demolding. Another newly assembled carbon fiber circular link chain layup pre-compression device is then taken, and the winding module group of the new device is passed through the preform of the circular link chain already formed inside the previous device, realizing the interlocking connection between the two devices and the internal preform. Multiple devices can simultaneously and cyclically carry out the winding and pre-compression processes, with each device operating independently without interference. Multiple interconnected and interlocked carbon fiber circular link chains are simultaneously produced by relying on the cross-interlocking assembly method of multiple devices. There is no need to wait for a single circular link chain to be completely demolded before processing the next link. Long interlocked carbon fiber circular link chain preforms can be continuously formed in one go, significantly improving the mass production capacity of long carbon fiber circular link chains required for heavy-load scenarios in ships and transport aircraft, and meeting the needs of large-scale engineering supply.

[0046] The above are merely preferred embodiments of the present invention and do not limit the scope of the patent. Any equivalent structural or procedural transformations made based on the description and drawings of the present invention, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of the present invention.

Claims

1. A carbon fiber round link chain layup pre-press device, characterized by, The system includes a winding module group, a connecting module group, and a compaction module group. The winding module group includes a central winding block and two edge winding blocks arranged opposite each other along the length of the circular chain. The connecting module group includes two connecting modules spaced apart along the thickness of the circular chain. The compaction module group includes two compaction modules arranged opposite each other along the width of the circular chain. The intermediate winding block is spliced ​​between the two edge winding blocks. The outer peripheral side of the winding module group is recessed to form a winding groove that is arranged around itself in the circumferential direction. The winding groove is used for winding and connecting the prefabricated body of the circular chain. The winding module group is provided with a connecting module at the top and bottom respectively, and the side winding blocks and the middle winding blocks that are spliced ​​together are connected into one unit through the connecting modules; The inner recess of the compaction module forms a compaction groove for placing the carbon fiber preform. The preform of the circular link chain is pre-compressed by fastening the two compaction modules inward along the width direction of the circular link chain.

2. The carbon fiber round link chain ply pre-pressing device according to claim 1, characterized in that, The edge winding block is U-shaped, and the middle winding block extends along the length of the circular chain and there are two of them. The two middle winding blocks are arranged at intervals along the width of the circular chain so as to be spliced ​​between the corresponding extension segments of the opening ends of the two edge winding blocks. The outer middle part of the edge winding block and the middle winding block are respectively recessed to form winding grooves corresponding to their own shapes. The winding groove is formed by splicing multiple winding grooves.

3. The carbon fiber round link chain ply pre-pressing device according to claim 1, characterized in that, The dimensions of the winding groove and the compaction groove are set to match the dimensions of the circular chain.

4. The carbon fiber round link chain ply pre-pressing device according to claim 2, characterized in that, Bolt holes are provided at the top and bottom of the middle winding block and at the top and bottom of the opening of the side winding block, respectively. The connecting module is connected to the side winding block and the middle winding block by bolts passing through the connecting module and the bolt holes.

5. The carbon fiber round link chain ply pre-pressing device according to claim 4, characterized in that, The intermediate winding block has two bolt holes, which are located at both ends of the connecting module.

6. The carbon fiber round link chain ply pre-pressing device according to claim 1, characterized in that, The compaction module is rectangular in shape, and the compaction groove is formed by a recess on the side of the compaction module facing the circular chain.

7. The carbon fiber round link chain ply pre-pressing device according to claim 6, characterized in that, The compaction module has bolt through holes at both ends that extend along the width of the circular chain. The two compaction modules are tightened by passing bolts through the two bolt through holes to pre-compact the preform of the circular chain.

8. The carbon fiber circular chain layup preloading device according to claim 2, characterized in that, The inner loop width of the winding module group is greater than the thickness of the circular chain.

9. The carbon fiber circular chain layup preloading device according to claim 8, characterized in that, The inner ring side of the edge winding block is provided with notches and grooves on both the top and bottom for adjacent circular chain interlocking.

10. A carbon fiber circular chain layup pre-compression structure, characterized in that, It includes a plurality of carbon fiber circular link chain layup preloading devices as described in any one of claims 1-9, wherein the plurality of carbon fiber circular link chain layup preloading devices pass through each other for fastening connection.

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