Carbon fiber preform opening weaving device

Abstract

The utility model relates to the technical field of carbon fiber weaving, in particular to a carbon fiber preform opening weaving device which comprises a preform forming mechanism, a rectangular steel needle array, side bars located on the periphery of the steel needle array and a side bar limiting mechanism, and the steel needle array is composed of a plurality of vertically-arranged steel needles; the carbon fiber laying mechanism comprises an X-direction carbon fiber laying unit and a Y-direction carbon fiber laying unit, and each laying unit comprises a swing rod; a plurality of beams of uncrossed carbon fibers penetrate through the swing rod, and under the swing action of the swing rod, the carbon fibers can be pulled from one side of the steel needle array to the other side of the steel needle array to be laid in an X-direction array gap or a Y-direction array gap; the method that the swing rod swings back and forth to pull the carbon fibers to be laid is adopted, weaving efficiency is guaranteed, and abrasion to the carbon fibers is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to carbon fiber weaving technical field, especially a kind of carbon fiber preform opening weaving device. BACKGROUND

[0002] Carbon fiber composite material is widely applied in aerospace, military, medical treatment, rail transit, biological pharmacy and other fields with the advantages of high specific modulus, high specific strength, corrosion resistance, high temperature resistance and the like.

[0003] Firstly, carbon fiber preform is woven as its reinforcement to manufacture carbon fiber composite material, and then it is fused with resin base, aluminum base and other materials to obtain carbon fiber composite material.

[0004] In prior art, the preform weaving methods based on continuous fiber forming mainly include winding method, needle punching method, three-dimensional flexible guiding weaving method and opening single needle knitting method. Among them, winding method is used for weaving two-dimensional preform, and the remaining three methods can be used for weaving three-dimensional preform. Three-dimensional preform introduces reinforcing fibers in thickness direction on the basis of two-dimensional.

[0005] Winding method is mainly used for the skin of large component, and delamination phenomenon of composite material is easily caused due to the absence of Z-direction reinforcing fibers (winding method can refer to: Li Xiongb, Zhou Yan, Zhou Cheng, Research and Prospect of Fiber Winding Construction Technology [J]. Civil Engineering Information Technology, 2024, 02.).

[0006] Needle punching method is to repeatedly puncture and extrude carbon fibers by needle punching machine, so that good combination is formed between carbon fiber layers, thereby forming stable three-dimensional network structure. However, needle punching method causes great damage to fibers, which greatly reduces the mechanical properties of composite material.

[0007] Three-dimensional flexible guiding weaving method is to set guiding array and fix its two ends, and then weaving needle carrying carbon fibers passes through guiding array, X and Y direction carbon fibers are laid layer by layer, and finally guiding rods in guiding array are replaced into Z direction carbon fiber bundle according to certain order (collectively referred to as yarn replacing process), so as to "bundle" X and Y direction fiber bundles together. After yarn replacing process is completed, carbon fiber preform is formed (for specific process method, refer to: Xue Deb, Research on Coupling Mechanism and Fiber Bundle Wear of Carbon Fiber Preform Three-dimensional Weaving [D]. Shandong University of Technology, 2023, 85-86). This method causes friction contact between carbon fibers and weaving needle and guiding array, which easily causes wear of carbon fibers.

[0008] Opening single needle knitting method can be used for single needle layer-by-layer winding according to planning path according to required shape, but the efficiency is low (opening single needle knitting method can refer to: Li Chunhui, He Lei, Wang Zhengfang, et al. Prediction and Experimental Verification of Fiber Volume Content of Three-dimensional Woven Composite Material Preform [J]. Composite Materials Science and Engineering, 2021 (4): 35-40.).

[0009] In summary, for carbon fiber three-dimensional preform, the needle punching method and the three-dimensional flexible guiding weaving method have higher efficiency, but can easily cause damage to carbon fibers during the manufacturing process, affecting the mechanical properties, and the open single needle knitting method has low damage to carbon fibers, but has low efficiency. Therefore, how to improve the production efficiency of the preform while reducing the fiber abrasion in weaving is a problem to be solved. Utility model content

[0010] The utility model aims at providing a carbon fiber preform open weaving device to solve the above problems existing in the prior art. In order to realize the above purpose, the utility model solves through the following technical scheme:

[0011] The utility model provides a carbon fiber preform open weaving device, which comprises:

[0012] The preform forming mechanism comprises a rectangular steel needle array, a side rod located around the steel needle array and a side rod limiting mechanism, and the steel needle array is composed of a plurality of vertically arranged steel needles;

[0013] The carbon fiber laying mechanism comprises an X-direction carbon fiber laying unit and a Y-direction carbon fiber laying unit, each of the laying units comprises a swing rod, a plurality of non-intersecting carbon fibers pass through the swing rod, and under the swing action of the swing rod, the carbon fibers can be pulled from one side of the steel needle array to the other side and laid in the X-direction or Y-direction array gap.

[0014] As a further technical scheme, the swing rod is provided with a rotatable yarn guide block, and the yarn guide block is provided with a plurality of porcelain eyes through which the carbon fibers pass.

[0015] As a further technical scheme, the laying unit further comprises a disc, the swing rod is vertically installed on the edge of the disc, and the disc is provided with a motor to drive the rotation of the disc by a certain angle and further drive the swing of the swing rod.

[0016] As a further technical scheme, the preform forming mechanism further comprises an upper support plate and a lower support plate, and the distance between the upper support plate and the lower support plate is adjustable, and the steel needle array is arranged on the lower support plate and passes through the upper support plate.

[0017] As a further technical scheme, a guide rod is arranged between the upper support plate and the lower support plate, and the upper support plate and the guide rod are in sliding fit.

[0018] As a further technical scheme, the side rod limiting mechanism is arranged on the upper support plate, and the side rod limiting mechanism is provided with four, which are arranged at the four corners of the steel needle array, and adjacent two side rod limiting mechanisms jointly limit the upward movement of one side rod.

[0019] As a further technical scheme, the edge rod limiting mechanism comprises a baffle, an adjusting rod and a spring, the adjusting rod is installed on the upper support plate, the spring and the baffle are both sleeved on the adjusting rod and the spring supports the baffle, and a nut is arranged on the adjusting rod to press the baffle.

[0020] As a further technical scheme, the yarn rack mechanism and the tensioning mechanism are further included, the yarn rack mechanism is used for supplying a plurality of carbon fiber bundles, and the tensioning mechanism is arranged between the yarn rack mechanism and the carbon fiber laying mechanism.

[0021] As a further technical scheme, the carbon fiber laying mechanism, the preform forming mechanism and the tensioning mechanism are all installed on the rack.

[0022] The beneficial effects of the above-mentioned utility model are as follows:

[0023] (1) The carbon fiber laying mechanism provided by the utility model has an X-direction carbon fiber laying unit and a Y-direction carbon fiber laying unit, each laying unit comprises a swing rod, a plurality of non-intersecting carbon fiber bundles can pass through the swing rod, and the swing rod can pull the carbon fiber from one side of the steel needle array to the other side to be laid in the X-direction or Y-direction array gap under the swing action of the swing rod. The two laying units alternately act to lay the carbon fiber in the X and Y directions, and the weaving efficiency is higher than that of the open single needle weaving method. Meanwhile, the swing rod of the utility model does not contact the steel needle, the carbon fiber is directly laid by pulling the carbon fiber through the swing rod, and compared with the three-dimensional flexible guide weaving method, the wear of the carbon fiber can be reduced. The weaving device of the utility model not only ensures the weaving efficiency, but also reduces the wear of the carbon fiber.

[0024] (2) The swing rod is vertically installed at the edge of the disc, when the disc rotates, the swing rod can pass above the steel needle array in an arc trajectory, and the carbon fiber is laid at the same time, the contact between the swing rod and the steel needle is avoided, and the problem of carbon fiber wear caused by the impact of the weaving needle on the guide rod in the three-dimensional flexible guide weaving method is avoided.

[0025] (3) The utility model sets a rotatable guide block on the swing rod, in the swing process of the swing rod, the guide block rotates correspondingly under the pulling action of the carbon fiber, so that the porcelain eye on the guide block and the passing carbon fiber are kept in a smooth state, the carbon fiber conveying process is smooth, and the wear of the carbon fiber is also avoided.

[0026] (4) The utility model sets four edge rod limiting mechanisms with baffles, which are arranged at the four corners of the steel needle array. When working, the baffles are aligned with the steel needles at the corners of the steel needle array, the baffles of the two edge rod limiting mechanisms can jointly limit an edge rod, since the baffle is a plate structure, the same edge rod limiting mechanism can simultaneously participate in the limiting of the edge rod in the X and Y directions, and the limiting of the edge rod by the technical personnel is facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0027] The accompanying drawings, which form a part of this patent, are included to provide a further understanding of the application, and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and serve to explain the principles of the application. It is to be understood that the drawings are for purposes of illustration only and are not necessarily drawn to scale of the application. The application will become more fully understood from the detailed description and embodiments discussed below, and the appended claims, taken in conjunction with the accompanying drawings in which:

[0028] Figure 1 The overall structure of the carbon fiber preform opening weaving device in the embodiment of the application is shown in the schematic diagram;

[0029] Figure 2 The preform forming mechanism in the embodiment of the application is shown in the schematic diagram;

[0030] Figure 3 The preform forming mechanism in the embodiment of the application is shown in the schematic diagram after laying carbon fiber;

[0031] Figure 4 The position relationship between the carbon fiber, the steel needle and the edge rod in the embodiment of the application is shown in the schematic diagram;

[0032] Figure 5 The carbon fiber laying mechanism in the embodiment of the application is shown in the schematic diagram;

[0033] Figure 6 The detailed structure of the swing rod in the embodiment of the application is shown in the schematic diagram;

[0034] Figure 7 The edge rod limiting mechanism in the embodiment of the application is shown in the schematic diagram;

[0035] Figure 8 The tensioning mechanism in the embodiment of the application is shown in the schematic diagram;

[0036] Figure 9 The yarn rack structure in the yarn rack mechanism in the embodiment of the application is shown in the schematic diagram.

[0037] In the diagram: 100, yarn frame mechanism; 110, fixed shaft; 120, nylon fixing seat; 130, carbon fiber roll; 140, bobbin; 150, first spring; 160, first nut; 200, tensioning mechanism; 210, support plate; 220, first guide roller; 230, second guide roller; 240, guide rail; 250, roller; 300, carbon fiber laying mechanism; 310, motor; 320, disc; 330, swing arm; 340, yarn guide block; 350, motor support. Seat; 360, Porcelain eye; 370, Shaft; 400, Precast molding mechanism; 410, Upper support plate; 420, Lower support plate; 430, Guide rod; 440, Steel needle; 450, Side bar limiting mechanism; 451, Adjusting rod; 452, Second nut; 453, Baffle; 454, Second spring; 455, Third nut; 460, Side bar; 470, Open retaining ring; 500, Frame; 600, Carbon fiber; 610, X-axis fiber; 620, Y-axis fiber. Detailed Implementation

[0038] The technical solutions in the typical embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0039] like Figure 1 As shown, this embodiment provides a carbon fiber preform open weaving device, including a yarn frame mechanism 100, a tensioning mechanism 200, a carbon fiber laying mechanism 300, a preform forming mechanism 400, and a frame 500, wherein the tensioning mechanism 200, the carbon fiber laying mechanism 300, and the preform forming mechanism 400 are mounted on the frame 500.

[0040] like Figure 2 As shown, the preform forming mechanism 400 includes a rectangular steel needle array, side bars 460 located around the steel needle array, and a side bar limiting mechanism 450. The steel needle array is composed of several vertically arranged steel needles 440.

[0041] The steel needles 440 in the steel needle array are evenly arranged. The gaps between adjacent steel needles in the X and Y directions can be used to lay carbon fiber 600. The position of steel needle 440 is the position of carbon fiber in the Z direction. After the carbon fiber in the X and Y directions is laid, the steel needle 440 is replaced by carbon fiber in the Z direction manually.

[0042] The tip of the steel needle 440 is pointed and used as a guide rod. During carbon fiber layup, the pointed tip of the steel needle 440 facilitates the entry of carbon fibers into the gaps between the steel needle array.

[0043] The embodiment illustrates the laying of 4x4 carbon fiber preform, but in actual situation, the number of carbon fiber bundles in the carbon fiber preform is greater than 4, and the drawing of the embodiment is only illustrative. The size of the steel needle array and the number of steel needles 440 are determined according to the size of the carbon fiber preform to be woven.

[0044] The preform forming mechanism 400 further comprises an upper support plate 410 and a lower support plate 420, and the distance between the two is adjustable, and the steel needle array is arranged on the lower support plate 420 and passes through the upper support plate 410.

[0045] The lower support plate 420 serves as the bottom support of the steel needle 440, and the upper support plate 410 is provided with a plurality of through holes for the steel needle 440 to pass through, and the upper support plate 410 can serve as the support basis during the laying of the carbon fiber preform.

[0046] According to the thickness of the carbon fiber preform to be woven, the distance between the upper support plate 410 and the lower support plate 420 is adjusted.

[0047] A guide rod 430 is arranged between the upper support plate 410 and the lower support plate 420, and the upper support plate 410 and the guide rod 430 are in sliding fit. Four guide rods 430 are arranged between the upper support plate 410 and the lower support plate 420 in the embodiment, which serve as the guide for the up-and-down movement of the upper support plate 410.

[0048] As shown in Figure 3 , in order to limit the upper support plate 410, an open retainer ring 470 is arranged on the guide rod 430, and the upper support plate 410 is limited by the open retainer ring 470, so that the upper support plate 410 maintains a set height.

[0049] As shown in Figure 5 , the carbon fiber laying mechanism 300 comprises an X-direction carbon fiber laying unit and a Y-direction carbon fiber laying unit, and each laying unit comprises a swing rod 330; a plurality of non-intersecting carbon fiber bundles 600 pass through the swing rod 330, and under the swing action of the swing rod 330, the carbon fiber bundles 600 can be pulled from one side of the steel needle array to the other side and laid in the X-direction or Y-direction array gap.

[0050] During laying, as shown in Figure 3 and Figure 4 , the starting end of the carbon fiber 600 is pasted on the edge of the steel needle 440 array, and this side is the starting side, and the opposite side is the ending side; the swing rod 330 swings from the starting side of the steel needle array to the ending side for laying, and after completion, the edge rod 460 is placed above the carbon fiber 600 on the ending side and is limited, and the swing rod 330 is swung in the opposite direction to complete the reverse laying, and after completion, the edge rod 460 is placed above the carbon fiber 600 on the starting side and is limited, and the above steps are alternately performed in the X and Y directions, that is, the laying of the X-direction carbon fiber 610 and the Y-direction carbon fiber 620 is completed.

[0051] It should be noted that when laying in the X direction, the swing rod 330 swings from the starting side to the ending side for laying, and then swings back from the ending side for reverse laying. In fact, it is laid back and forth once each time, and a total of twice, but in this embodiment, it is regarded as laying one layer of X-direction carbon fibers 610. The Y-direction carbon fibers 620 are laid in the same way. After completing one layer of X-direction carbon fibers 610, the Y-direction carbon fibers 620 are laid, and the process is alternately repeated.

[0052] The carbon fiber laying mechanism 300 provided in this embodiment has one X-direction carbon fiber laying unit and one Y-direction carbon fiber laying unit, each laying unit including a swing rod 330, through which a plurality of non-intersecting carbon fibers 600 can pass, and under the swinging action of the swing rod 330, the carbon fibers 600 can be pulled from one side of the steel needle array to the other side to be laid in the X-direction or Y-direction array gap. The two laying units alternately act to lay one layer of X and Y direction carbon fibers, which has higher weaving efficiency than the open single needle weaving method. At the same time, the swing rod of this embodiment does not contact the steel needle, and the carbon fibers are directly laid by pulling through the swing rod, which can reduce the wear of the carbon fibers compared to the three-dimensional flexible guide weaving method. The weaving device of this embodiment not only ensures the weaving efficiency, but also reduces the wear of the carbon fibers.

[0053] As shown in Figure 5 , the laying unit further includes a disc 320, and the swing rod 330 is vertically installed on the edge of the disc 320. The disc 320 is configured with a motor 310 to drive it to rotate by a set angle and in turn drive the swing rod 330 to swing. The motor 310 is installed on a motor support 350, and the motor support 350 is installed on a machine frame 500.

[0054] In this embodiment, the swing rod 330 is vertically installed on the edge of the disc 320. When the disc 320 rotates, it can drive the swing rod 330 to pass above the steel needle array in an arc trajectory, while pulling the carbon fibers for laying, avoiding the contact between the swing rod 330 and the steel needle 440, and avoiding the problem of carbon fiber wear caused by the impact of the weaving needle on the guide rod in the three-dimensional flexible guide weaving method.

[0055] As shown in Figure 1 , the two laying units are respectively placed on two adjacent sides of the preform forming mechanism 400, and the swing rods thereof extend to the steel needle array area and can cover the steel needle array area by swinging. After the laying unit is installed, the swing rod of the laying unit for laying X-direction carbon fibers is perpendicular to the X direction, and the swing rod of the laying unit for laying Y-direction carbon fibers is perpendicular to the Y direction. The two swing rods 330 are perpendicular, and the centers of rotation of the two discs 320 are perpendicular.

[0056] As shown in Figure 5 and Figure 6As shown, the swing rod 330 is provided with a rotatable yarn guide block 340, and the yarn guide block 340 is provided with a plurality of eyelets 360 through which the carbon fibers 600 pass. The number of eyelets 360 is consistent with the number of corresponding laid carbon fibers. The eyelets 360 are structures in the prior art, which will not be described in detail here. The yarn guide block 340 is rotatably connected to the swing rod 330 through a shaft 370.

[0057] The embodiment sets the rotatable yarn guide block 340 on the swing rod 330. During the swing of the swing rod 330, the yarn guide block 340 rotates correspondingly under the pulling action of the carbon fibers 600, so that the eyelets 360 on the yarn guide block 340 and the passing carbon fibers 600 remain in a smooth state, ensuring smooth delivery of the carbon fibers 600, and also avoiding wear of the carbon fibers 600.

[0058] As shown in Figure 2 The edge rod limiting mechanism 450 is provided on the upper support plate 410, and there are four edge rod limiting mechanisms 450, which are arranged at the four corners of the steel needle array. Adjacent two edge rod limiting mechanisms 450 jointly limit the upward movement of an edge rod 460.

[0059] As shown in Figure 7 The edge rod limiting mechanism 450 includes a baffle 453, an adjusting rod 451, and a second spring 454. The adjusting rod 451 is installed on the upper support plate 410 through a second nut 451 and a third nut 455. The second spring 454 and the baffle 453 are both sleeved on the adjusting rod 451, and the second spring 454 supports the baffle 453. The second nut 452 arranged on the adjusting rod 451 presses the baffle 453.

[0060] It should be noted that the edge rod 460 cannot be automatically placed yet, and manual placement is usually used in the prior art. The edge rod placement of the embodiment is also the same. The diameter of the conventional edge rod is generally 0.8, 1, or 1.2 mm.

[0061] During the pulling and laying process of the carbon fibers 600, the edge rod limiting mechanism 450 is provided to prevent the edge rod 460 from being pulled up. The main function of the edge rod limiting mechanism 450 is to limit the vertical displacement of the placed edge rod 460, and the displacement to the side of the steel needle array is limited by the steel needles at the edge of the steel needle array.

[0062] There are four edge rod limiting mechanisms 450, which are arranged at the four corners of the steel needle array. During operation, the baffle 453 is aligned with the steel needles at the corners of the steel needle array, and the baffles 453 of two edge rod limiting mechanisms 450 jointly limit an edge rod. Since the baffle is a plate structure, the same edge rod limiting mechanism 450 can simultaneously limit the edge rods in the X direction and the Y direction.

[0063] After the carbon fiber side bar 460 is placed, when the pendulum 330 swings to the other side of the steel needle array, the vertical displacement of the side bar is limited by the side bar limiting mechanism 450. At the same time, the carbon fiber pulls the side bar 460 to contact the steel needles at the edge of the steel needle array, preventing them from continuing to move. After the pendulum 330 swings to the other side, the side bar is placed and limited. The side bar limiting mechanism 450 on the side before the swing no longer has a limiting function, and can now be used to limit other side bars.

[0064] With the cooperation of the second spring 454, the second nut 452, and the third nut 455, the height of the baffle 453 can be adjusted to accommodate side bars 460 of different heights. After the third nut 455 is adjusted to the correct position, the height of the baffle 453 can be further adjusted using the second spring 454 and the second nut 452.

[0065] like Figure 1 As shown, it also includes a yarn frame mechanism 100 and a tensioning mechanism 200. The yarn frame mechanism 100 is used to supply several bundles of carbon fiber 600, and the tensioning mechanism 200 is located between the yarn frame mechanism 100 and the carbon fiber 600 laying mechanism.

[0066] The yarn frame mechanism 100 is existing technology. For clarity, its structural composition is briefly described here. The yarn frame mechanism 100 has several components such as... Figure 9 The yarn frame shown corresponds to the number of bundles of carbon fibers in the X-direction or Y-direction. The yarn frame includes a fixed shaft 110, a nylon fixing seat 120, a first spring 150, and a first nut 160. A carbon fiber roll 130 with a bobbin 140 is mounted on the fixed shaft 110. A first spring 150 and a first nut 160 are attached to one side of the bobbin 140, while the nylon fixing seat 120 is mounted on the fixed shaft 110 on the other side. Under the action of the first spring 150, frictional resistance is generated between the bobbin 140 and the nylon fixing seat 120, providing a certain tension for unwinding the carbon fiber roll 130.

[0067] It should be noted that this embodiment only provides a yarn frame mechanism commonly used in the prior art. In practical applications, other yarn frame mechanisms can also be used, and it is not limited to the structure in this embodiment.

[0068] like Figure 8 As shown, this embodiment provides a simple tensioning mechanism 200, including two support plates 210. A first roller 220 and a second roller 230 are provided at the upper part between the two support plates 210, and a roller 250 is provided at the lower part. The roller 250 slides and engages with the support plates 210 through a guide rail 240.

[0069] The carbon fibers 600 pass through the first passing roller 220, the roller 250 and the second passing roller 230 in sequence. The number of carbon fibers contained in each bundle of carbon fibers is different, and the tension required during conveying is also different. The more the number of carbon fibers contained, the greater the tension required. Therefore, the roller 250 in the embodiment can provide different tension forces by placing objects with different weights inside.

[0070] It should be noted that the tensioning mechanism 200 provided in the embodiment is a simple mechanism designed by the applicant, and the adjustment of the tension is not necessarily accurate. A tensioning mechanism with perfect functions in the prior art can be used as a substitute.

[0071] The process of weaving using the carbon fiber preform opening weaving device includes the following specific steps:

[0072] The X-direction and Y-direction carbon fibers 600 are drawn out from the respective yarn rack mechanisms 100, pass through the corresponding tensioning mechanisms 200 and the swing rods 330 of the laying units in sequence, and are pasted at the starting end of the drawn-out carbon fibers 600 at the edge of the array of steel needles 440. The side serves as the starting side, and the opposite side serves as the ending side. The swing rods 330 swing from the starting side to the ending side of the array of steel needles to lay the carbon fibers 600. After the laying is completed, the edge rod 460 is placed above the carbon fibers 600 at the ending side and is limited in position. The swing rods 330 are swung in the reverse direction to complete reverse laying. After the reverse laying is completed, the edge rod 460 is placed above the carbon fibers 600 at the starting side and is limited in position. The X-direction and Y-direction are alternately subjected to the above steps, that is, the laying of the X-direction and Y-direction carbon fibers 600 is completed.

[0073] The above steps are repeated until the number of woven layers meets the requirement. The four edge rods 460 are removed, and the compaction process is entered to eliminate the interlayer gaps of the carbon fibers 600. The woven preform is removed, and the artificial yarn replacement process is entered. The Z-direction carbon fibers 600 are used to replace the steel needles 440 to complete the final weaving of the preform.

[0074] The artificial yarn replacement process and the compaction process can both use the corresponding processes in the prior art, which will not be described in detail here. For specific process methods, reference can be made to: Xuedebo. Carbon fiber preform three-dimensional weaving coupling mechanism and fiber bundle wear research [D]. Shandong University of Technology, 2023.

[0075] Although the utility model has been disclosed in the above-mentioned preferred embodiments, it is not intended to limit the utility model. Any person skilled in the art can make possible changes and modifications to the utility model technical solution by using the above-mentioned disclosed methods and technical contents without departing from the spirit and scope of the utility model. Therefore, any simple modification, equivalent change and modification made to the above-mentioned embodiments according to the technical essence of the utility model, which does not deviate from the content of the utility model technical solution, belongs to the protection scope of the utility model technical solution.

Claims

1. An open weave carbon fiber preform apparatus, characterized by, The application relates to a carbon fiber prepreg forming device. The device comprises a steel needle array, a side rod and a side rod limiting mechanism. The device further comprises a yarn rack mechanism and a tensioning mechanism.

2. An open weave carbon fiber preform apparatus as in claim 1, wherein, The device further comprises a machine frame.

3. An open weave carbon fiber preform apparatus as in claim 2, wherein, The device comprises a steel needle array, a side rod and a side rod limiting mechanism.

4. An open weave carbon fiber preform apparatus as in claim 1, wherein, The device further comprises a yarn rack mechanism and a tensioning mechanism.

5. An open weave carbon fiber preform apparatus as in claim 4, wherein, The device further comprises a machine frame.

6. An open weave carbon fiber preform apparatus as in claim 4, wherein, ​ 7. An open weave carbon fiber preform apparatus as in claim 6, wherein, ​ 8. An open weave carbon fiber preform apparatus as in claim 1, wherein, ​ 9. An open weave carbon fiber preform apparatus as in claim 8, wherein, ​

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