A fabrication apparatus for embedding fibers in foam sandwich composite materials

Abstract

This invention belongs to the field of composite material preparation, specifically relating to a preparation device for embedding fibers into foam sandwich composite materials, addressing the problems of low processing efficiency and accuracy when manually embedding fiber threads. The device includes a frame body, a fiber conveying mechanism, a fiber embedding mechanism, and a sheet fixing mechanism. A mounting frame is movably mounted on the frame body, and both the fiber conveying and fiber embedding mechanisms are mounted on the mounting frame, which drives the fiber conveying and fiber embedding mechanisms to move on the frame body. The sheet fixing mechanism is mounted on the frame body to fix the foam sandwich composite material to the frame body. The fiber embedding mechanism includes a needle, an angle adjustment component, and a pushing component. The angle adjustment component adjusts the angle between the needle and the foam sandwich composite material, and the pushing component pushes the needle to insert the fiber thread conveyed by the fiber conveying mechanism into the foam sandwich composite material. This invention improves the processing efficiency and accuracy of fiber embedding.

Description

Technical Field

[0001] This invention belongs to the field of composite material preparation, and more specifically, relates to a preparation device for embedding fibers in foam sandwich composite materials. Background Technology

[0002] Foam sandwich composites are characterized by high specific strength and specific stiffness, and are widely used in modern industry. They typically consist of a face panel and a core material. However, due to the low bond strength between the face panel and the core material, the connection is prone to failure under impact, bending, or shear loads. Fiber reinforcement can significantly improve the bending and shear resistance of sandwich materials while preventing bond failure between the face panel and the core material.

[0003] Currently, the preparation method for fiber-reinforced foam sandwich composite materials usually involves first preparing a preform of the foam sandwich composite material, including a panel and a core material connected as an integral structure. Then, the fiber threads are inserted into the foam board by manual marking at predetermined intervals on the preform, and finally, the composite material is prepared using the VIMP process.

[0004] The existing related technologies have the following problems: manual implantation of fiber threads is labor-intensive and has low processing efficiency. Furthermore, angle errors are prone to occur when implanting fiber threads, which affects the reinforcing effect of the fibers on the foam sandwich composite material. Summary of the Invention

[0005] To improve the processing efficiency and accuracy of fiber implantation, this invention provides a preparation device for implanting fibers into foam sandwich composite materials.

[0006] The present invention provides a preparation device for embedding fibers in foam sandwich composite materials, which adopts the following technical solution:

[0007] A fabrication apparatus for embedding fibers into foam sandwich composite materials includes a frame body, a fiber conveying mechanism, a fiber embedding mechanism, and a sheet fixing mechanism. A mounting frame is movably mounted on the frame body, and both the fiber conveying mechanism and the fiber embedding mechanism are mounted on the mounting frame. The mounting frame is used to move the fiber conveying mechanism and the fiber embedding mechanism on the frame body. The sheet fixing mechanism is mounted on the frame body to fix the foam sandwich composite material to the frame body. The fiber embedding mechanism includes a needle, an angle adjustment component, and a pushing component. The angle adjustment component adjusts the angle between the needle and the foam sandwich composite material, and the pushing component pushes the needle after angle adjustment to allow the fiber thread conveyed by the fiber conveying mechanism to enter the foam sandwich composite material.

[0008] By adopting the above technical solution, when embedding fibers into the foam sandwich composite material, the foam sandwich composite material is first placed on the frame body and fixed and stabilized by the plate fixing mechanism. The fiber conveying mechanism is used to convey the fiber thread, and then the fiber implantation mechanism implants the fiber thread into the foam sandwich composite material, thereby improving processing efficiency. When implanting the fiber thread, after adjusting the angle of the needle by the angle adjustment component, the pushing component pushes the needle to make the fiber thread enter the foam sandwich composite material, which can accurately control the precision of the fiber thread implantation angle and improve the processing effect.

[0009] As a further preferred embodiment, the fiber conveying mechanism includes a reel, a positioning component, and a cutting component. The reel is disposed on the mounting frame, and both the positioning component and the cutting component are disposed on the reel. The positioning component is used to position the fiber thread, and the cutting component is used to cut off both ends of the fiber thread. The reel has a perforation, and the needle pushes the fiber thread fixed by the positioning component through the perforation into the foam core composite material.

[0010] By adopting the above technical solution, the positioning component fixes the fiber thread on the spool, making the fiber thread more stable and easier to implant. The pushing component pushes the needle to make the fiber thread pass through the perforation. At the same time, the cutting component cuts both ends of the fiber thread to break it, thereby allowing the fiber thread to enter the foam core composite material.

[0011] As a further preferred embodiment, the spool is rotatably connected to the mounting bracket; multiple sets of positioning components are provided, which are arranged around the spool to divide the fiber thread on the spool into multiple segments; multiple sets of cutting components are provided, which are arranged around the spool to cut each segment of fiber thread.

[0012] By adopting the above technical solution, the spool and the mounting frame are rotatably connected. The fiber thread is wrapped around the spool. By rotating the spool, the position of each fiber thread can be adjusted. The fiber thread is pushed and implanted by the needle. At the same time, the cutting component cuts the fiber thread, so that each fiber thread is implanted into the foam core composite material in sequence. When the spool rotates, it can automatically wrap the fiber thread around the spool, which improves the efficiency of fiber thread implantation.

[0013] As a further preferred embodiment, the positioning component includes a positioning block and two clamping plates. The positioning block is disposed at the perforation and has a notch communicating with the perforation. The two clamping plates are respectively located on both sides of the positioning block. When conveying the fiber thread, the fiber thread is wound around the outside of the multiple positioning blocks and the fiber thread is located between the clamping plates and the thread spool.

[0014] By adopting the above technical solution, when the suture reel rotates, the fiber thread is wrapped around the outside of the positioning block and pressed by the clamping plate. When the suture reel rotates, the fiber thread automatically enters the bottom of the clamping plate, and the needle pushes the fiber thread through the perforation from the notch, so that the fiber thread maintains a relatively stable state during implantation, thereby improving the effect of fiber thread implantation.

[0015] As a further preferred embodiment, the cutting assembly includes a sliding seat, a mounting seat, and a cutter. The sliding seat is slidably connected to the spool, the mounting seat is disposed on the sliding seat, and the cutter is disposed on the mounting seat. The fiber thread on the spool is located at the bottom of the cutter, and when the needle pushes the fiber thread, the fiber thread bends and contacts the cutter.

[0016] By adopting the above technical solution, the position of the movable sliding seat on the reel is adjusted. After the fiber thread is wound on the reel, it is located at the bottom of the cutter. When the needle pushes the fiber thread, the fiber thread bends and contacts the cutter, thus being automatically cut. This makes it more convenient to use and saves on equipment production and usage costs.

[0017] As a further preferred embodiment, the angle adjustment assembly includes a connecting shaft and a rotating block, the connecting shaft being disposed on the mounting bracket, the rotating block being sleeved on the connecting shaft, and the needle and the pushing assembly being disposed on the rotating block.

[0018] By adopting the above technical solution, the rotating block rotates, which drives the needle and the pushing component to rotate, thereby adjusting the angle between the needle and the foam core composite material. Then, the pushing component pushes the needle to move, so that the needle pushes the fiber thread into the foam core composite material, completing the implantation of the fiber thread and effectively controlling the accuracy of the fiber thread implantation.

[0019] As a further preferred embodiment, the pushing component includes a linear drive, a slide rail, and a slider. The slide rail is disposed on the rotating block, the slider is slidably adapted to the slide rail, the needle is disposed on the slider, and the linear drive is used to drive the slider to move on the slide rail.

[0020] By adopting the above technical solution, the linear drive component drives the slider to move, thereby enabling the needle to enter the foam core composite material and realize the implantation of fibers. The slider slides on the slide rail, which improves the stability of the slider and further improves the accuracy of fiber implantation.

[0021] As a further preferred embodiment, the mounting frame is provided with a support plate, the support plate has a limiting groove, the support plate is located at the bottom of the coil, and the limiting groove corresponds to the through hole. The mounting frame is provided with an adjustment component for driving the support plate to move.

[0022] By adopting the above technical solution, when the needle inserts the fiber thread into the foam sandwich composite material, the support plate supports the bottom position of the fiber thread in the foam sandwich composite material, making the foam sandwich composite material more stable. The needle passes through the foam sandwich composite material and enters the limiting groove to complete the fiber thread insertion, and the insertion effect is good. The adjustment component moves the support plate to maintain support on the bottom position of the foam sandwich composite material, thereby improving the fiber thread insertion effect.

[0023] As a further preferred embodiment, the plate fixing mechanism includes a support frame and a placement frame. The support frame is disposed on the frame body, and the placement frame is disposed on the support frame. The support frame is provided with a plurality of clamping members along the length direction for fixing the edges of the foam sandwich composite material.

[0024] By adopting the above technical solution, when fixing the foam sandwich composite material, the edge part of the foam sandwich composite material is clamped by the clamping parts on the support frame, thereby improving the placement stability of the foam sandwich composite material and making it easier to implant fiber lines into the foam sandwich composite material.

[0025] As a further preferred embodiment, the frame body is provided with a first drive assembly for driving the mounting bracket to move along the X-axis and a second drive assembly for driving the mounting bracket to move along the Y-axis.

[0026] By adopting the above technical solution, the first drive component and the second drive component work together to move the mounting frame to a suitable position, so as to implant fibers into different positions of the foam sandwich composite material, thereby improving the automation level of the equipment, making it more convenient to use, and improving processing efficiency.

[0027] In summary, the present invention has at least the following beneficial technical effects:

[0028] 1. When embedding fibers into foam sandwich composite materials, the foam sandwich composite material is first placed on the frame body and fixed and stabilized by the plate fixing mechanism. The fiber conveying mechanism is used to convey the fiber thread. Then, the fiber thread is embedded into the foam sandwich composite material by the fiber implantation mechanism, which improves the processing efficiency. When implanting the fiber thread, the angle of the needle is adjusted by the angle adjustment component, and the push component pushes the needle to make the fiber thread enter the foam sandwich composite material. The accuracy of the fiber thread implantation angle can be accurately controlled, which improves the processing effect.

[0029] 2. The spool and the mounting frame are rotatably connected. Multiple positioning components fix the fiber filaments. The fiber filaments are wrapped around the spool. By rotating the spool, the position of each fiber filament can be adjusted. The fiber filaments are pushed by the needle and cut by the cutting component. Each fiber filament is inserted into the foam core composite material by passing through the perforations on the spool in sequence. The spool can automatically wind the fiber filaments around the spool when it rotates, which improves the efficiency of fiber filament insertion.

[0030] 3. By adjusting the position of the sliding seat on the reel, the fiber thread is wound around the reel and positioned at the bottom of the cutter. When the needle pushes the fiber thread, the fiber thread bends and contacts the cutter, thus being automatically cut. This makes it more convenient to use and saves on equipment production and operating costs. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention;

[0032] Figure 2 yes Figure 1 Enlarged structural diagram of section A in the middle;

[0033] Figure 3 yes Figure 1 Enlarged structural diagram of section B in the middle;

[0034] Figure 4 yes Figure 1 Enlarged overall structural diagram of section C;

[0035] Figure 5 This is a schematic diagram illustrating the overall structure of the fiber conveying mechanism according to an embodiment of the present invention;

[0036] Figure 6 yes Figure 5 Enlarged structural diagram of section D in the middle;

[0037] Figure 7 This is a schematic diagram illustrating the overall structure of the fiber implantation mechanism according to an embodiment of the present invention.

[0038] In all the accompanying drawings, the same reference numerals are used to denote the same elements or structures, wherein:

[0039] 1. Frame body; 11. Mounting bracket; 12. Support plate; 121. Limiting groove; 13. Adjusting assembly; 131. Threaded rod; 132. Connecting frame; 133. Positioning rod; 14. First drive assembly; 141. Conveyor belt; 142. Mounting box; 143. Rotating roller; 15. Second drive assembly; 151. Limiting rod; 152. Mounting block; 153. Lead screw; 2. Fiber conveying mechanism; 21. Wire reel; 211. Perforation; 22. Positioning assembly; 221. Positioning block; 2211. Missing part 222. Clamping plate; 23. Cutting assembly; 231. Sliding seat; 232. Mounting seat; 233. Cutter; 3. Fiber implantation mechanism; 31. Needle; 32. Angle adjustment assembly; 321. Connecting shaft; 322. Rotating block; 33. Pushing assembly; 331. Linear drive; 332. Slide rail; 333. Slider; 4. Sheet fixing mechanism; 41. Support frame; 42. Placement frame; 43. Clamping component; 431. Connecting plate; 432. Clamping plate; 433. Connecting rod; 434. Spring. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0041] In the description of this invention, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0042] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0043] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0044] The following is in conjunction with the appendix Figure 1-7 The present invention will be described in further detail below.

[0045] This invention discloses a preparation device for embedding fibers in foam sandwich composite materials.

[0046] Reference Figure 1 A fabrication device for embedding fibers into foam sandwich composite materials includes a frame body 1, a fiber conveying mechanism 2, a fiber embedding mechanism 3, and a plate fixing mechanism 4. The fiber conveying mechanism 2, the fiber embedding mechanism 3, and the plate fixing mechanism 4 are all mounted on the frame body 1. The foam sandwich composite material is fixed to the frame body 1 by the plate fixing mechanism 4, and then the fiber conveying mechanism 2 conveys the fiber thread, and then the fiber embedding mechanism 3 embeds the fiber thread into the foam sandwich composite material to improve the bending and shear resistance of the foam sandwich composite material, while preventing the connection between the panel and the core material from failing.

[0047] Reference Figure 1 and Figure 4 In this embodiment, to stably fix the foam sandwich composite material to the frame body 1, the board fixing mechanism 4 includes a support frame 41 and a placement frame 42. The support frame 41 is disposed on the frame body 1, and the placement frame 42 is disposed on the support frame 41. Preferably, there are two support frames 41 and two placement frames 42. The two support frames 41 are respectively fixed to both ends of the frame body 1 by bolts, and the ends of the two placement frames 42 are fixed to the support frame 41 by bolts. On the side of the two support frames 41 that is close to each other, a plurality of clamping members 43 are provided along the length direction. The edge of the foam sandwich composite material is fixed. Specifically, the clamping component 43 includes a connecting plate 431, a clamping plate 432, a connecting rod 433, and a spring 434. The connecting plate 431 is fixedly connected to the placement frame 42, the connecting rod 433 is fixedly connected to the clamping plate 432, and the connecting rod 433 passes through the clamping plate 432. The spring 434 is fixedly connected between the connecting rod 433 and the connecting plate 431. The spring 434 pushes the connecting rod 433 to bring the clamping plate 432 and the connecting plate 431 closer to each other. When the foam sandwich composite material is installed, its edge is clamped between the connecting plate 431 and the clamping plate 432.

[0048] Reference Figure 1and Figure 2 To enable the implantation of fiber lines into foam sandwich composite materials, a mounting frame 11 is movably mounted on the frame body 1. The fiber conveying mechanism 2 and the fiber implantation mechanism 3 are both mounted on the mounting frame 11. Moving the mounting frame 11 can drive the fiber conveying mechanism 2 and the fiber implantation mechanism 3 to move on the frame body 1. To drive the mounting frame 11 to move, the frame body 1 is provided with a first drive assembly 14 for driving the mounting frame 11 to move along the X-axis and a second drive assembly 15 for driving the mounting frame 11 to move along the Y-axis.

[0049] In this embodiment, to improve the motion stability of the mounting frame 11, two sets of first drive components 14 are provided and symmetrically arranged on both sides of the frame body 1. The first drive component 14 includes a conveyor belt 141, a first drive motor, a mounting box 142, and two rotating rollers 143. The rotating rollers 143 are rotatably connected to the frame body 1, and the conveyor belt 141 is sleeved between the two rotating rollers 143. The first drive motor is fixedly installed on the frame body 1, and the rotating rollers 143 are coaxially fixedly connected to the output shaft of the first drive motor. The mounting box 142 is slidably disposed on the frame body 1 along the length direction of the frame body 1, and the mounting box 142 is fixedly connected to the conveyor belt 141. When the first drive motor drives the conveyor belt 141 to rotate, it drives the mounting box 142 to move on the frame body 1. The mounting frame 11 is disposed on the mounting box 142, thereby driving the mounting frame 11 to move. The first drive motor is not shown in the figure.

[0050] In a preferred embodiment, the second drive assembly 15 includes a limiting rod 151, a mounting block 152, a lead screw 153, and a second drive motor. The limiting rod 151 is fixedly connected between two mounting housings 142. The mounting block 152 is slidably connected to the limiting rod 151. The mounting frame 11 is mounted on the mounting block 152. The lead screw 153 is rotatably connected between the two mounting housings 142, and the lead screw 153 is threadedly connected to the mounting block 152. The lead screw 153 and the limiting rod 151 are parallel to each other. The second drive motor is fixedly mounted on the mounting housing 142. The lead screw 153 is coaxially fixedly connected to the output shaft of the second drive motor. The second drive motor drives the lead screw 153 to rotate, causing the mounting block 152 to move, thereby driving the mounting frame 11 to move. The second drive motor is not shown in the figure.

[0051] Specifically, a groove is provided on the mounting block 152 along the Z-axis direction, and the mounting bracket 11 is set in the groove, so that the height of the mounting bracket 11 can be adjusted. A locking screw is threaded on the mounting bracket 11. Rotating the locking screw abuts against the mounting block 152 to fix the position of the mounting bracket 11.

[0052] Reference Figure 5 and Figure 6To facilitate the supply of fiber threads, a coil placement platform is fixedly installed on the mounting frame 11; the fiber conveying mechanism 2 includes a reel 21, a positioning component 22, and a cutting component 23. The reel 21 is rotatably connected to the mounting frame 11, and the shaft of the reel 21 is vertically arranged. Both the positioning component 22 and the cutting component 23 are arranged on the reel 21. The positioning component 22 positions the fiber thread, and the cutting component 23 is used to cut off both ends of the fiber thread. Preferably, multiple sets of positioning components 22 are provided, and multiple sets of positioning components 22 are arranged around the reel 21. The fiber thread on the coil 21 is divided into multiple segments, with the fiber thread between the two positioning components 22 being one segment; multiple sets of cutting components 23 are provided, and the multiple sets of cutting components 23 are arranged around the coil 21. The cutting components 23 are used to cut each segment of fiber thread; multiple through holes 211 are provided on the coil 21, and the through holes 211 are located at the bottom of each segment of fiber thread; a positioning plate is also provided on the mounting bracket 11, and an opening is provided on the positioning plate at the same height as the surface of the coil 21. The fiber thread on the coil placement platform extends through the opening to the coil 21.

[0053] In a preferred embodiment, the positioning component 22 includes a positioning block 221 and two clamping plates 222. The through hole 211 is an oblong hole. The positioning block 221 is slidably connected to the through hole 211. A bolt is provided on the positioning block 221, which abuts against the coil 21 to fix the position of the positioning block 221. The positioning block 221 has a notch 2211 communicating with the through hole 211. The two clamping plates 222 are located on both sides of the positioning block 221, and one end of the clamping plate 222 near the edge of the coil 21 is raised. When conveying the fiber, the fiber is wound around the outside of the multiple positioning blocks 221 and is located between the clamping plate 222 and the coil 21, so that the fiber can be inserted into the foam sandwich composite material from the through hole 211. The mounting frame 11 is also provided with a third drive motor. When the coil 21 is driven to rotate by the third drive motor, the fiber can automatically enter the bottom of the clamping plate 222 to complete the transmission of the fiber.

[0054] In a preferred embodiment, the cutting assembly 23 includes a sliding seat 231, a mounting seat 232, and a cutter 233. The sliding seat 231 is slidably connected to the wire reel 21, the mounting seat 232 is fixedly connected to the sliding seat 231, and the cutter 233 is fixedly connected to the mounting seat 232. The fiber thread on the wire reel 21 is located at the bottom of the cutter 233. When the fiber thread is pushed into the perforation 211, the fiber thread bends, and both ends of the fiber thread contact the cutter 233. The fiber thread is subjected to shearing force and thus breaks.

[0055] Reference Figure 7The fiber implantation mechanism 3 includes a needle 31, an angle adjustment component 32, and a push component 33. The angle adjustment component 32 is used to adjust the angle between the needle 31 and the foam core composite material so as to adjust the angle of fiber implantation and have better implantation accuracy. The push component pushes the needle 31 after the angle is adjusted so that the fiber on the coil 21 passes through the perforation 211 and enters the foam core composite material.

[0056] In a preferred embodiment, the angle adjustment assembly 32 includes a connecting shaft 321 and a rotating block 322. Mounting rods are fixedly mounted on both ends of the mounting bracket 11, and sliding sleeves are slidably mounted on the mounting rods. Both ends of the connecting shaft 321 are fixedly connected to the sliding sleeves. The rotating block 322 is sleeved on the connecting shaft 321, and a mounting plate is fixedly connected to the rotating block 322. The needle 31 and the pushing assembly 33 are both mounted on the mounting plate. The rotating block 322 rotates to adjust the angle of the needle 31. The pushing assembly 33 includes a linear drive 331, a slide rail 332, and a slider 333. The slide rail 332 is fixedly connected to... On the mounting plate, the slider 333 and the slide rail 332 are slidably adapted. The needle 31 is fixedly connected to the slider 333. The linear drive 331 is used to drive the slider 333 to move on the slide rail 332. In this embodiment, the linear drive 331 is a dual-axis cylinder. The dual-axis cylinder is fixedly mounted on the mounting plate. The slider 333 is fixedly connected to the piston rod of the dual-axis cylinder. The dual-axis cylinder drives the slider 333 to slide and drive the needle 31 to move. The needle 31 pushes the fiber thread on the spool 21 through the perforation 211 into the foam core composite material. In order to facilitate accurate thread pushing, an alignment groove is provided at the opening of the needle 31.

[0057] Reference Figure 1 and Figure 3 To improve the efficiency of fiber thread implantation, multiple sets of fiber conveying mechanism 2 and fiber implantation mechanism 3 are provided, with one-to-one correspondence between them. Multiple support plates 12 are provided on the mounting frame 11, located below the thread reel 21. A limiting groove 121 is provided on the top of the support plate 12, corresponding to the position of the perforation 211. An adjustment component 13 is provided on the mounting frame 11 to drive the multiple support plates 12 to move, so that the support plates 12 and the thread reel 21 remain relatively stable. When the needle 31 implants the fiber thread into the foam core composite material, the support plate 12 supports the bottom position of the implanted fiber thread in the foam core composite material, making the foam core composite material more stable. The needle 31 passes through the foam core composite material and enters the limiting groove 121 to complete the implantation of the fiber thread, and the implantation effect is good.

[0058] In a preferred embodiment, the adjusting assembly 13 includes a threaded rod 131, a connecting frame 132, and a positioning rod 133. The two ends of the positioning rod 133 are respectively connected to two mounting housings 142. The connecting frame 132 is sleeved on the positioning rod 133, and the support plate 12 is fixedly connected to the connecting frame 132. The threaded rod 131 is rotatably connected to the two mounting housings 142, and passes through the connecting frame 132 and is threadedly connected to it. In this embodiment, the threaded rod 131, positioning rod 133, lead screw 153, and limiting rod 153 are included. 51 are arranged in parallel to each other; when the threaded rod 131 is driven to rotate, the connecting frame 132 drives the support plate 12 to move. In this embodiment, gears are sleeved on the outside of both the lead screw 153 and the threaded rod 131, and a toothed belt is sleeved between the two gears so that the two gears rotate synchronously. When the lead screw 153 is driven to rotate, the threaded rod 131 and the lead screw 153 rotate synchronously, so that the support plate 12 can always be in the position corresponding to the through hole 211 on the coil 21, so as to support the part of the foam sandwich composite material implanted with fibers.

[0059] The above are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A preparation apparatus for embedding fibers in foam sandwich composite materials, characterized in that, It includes a frame body (1), a fiber conveying mechanism (2), a fiber implantation mechanism (3), and a board fixing mechanism (4); A mounting frame (11) is movably mounted on the frame body (1). The fiber conveying mechanism (2) and the fiber implantation mechanism (3) are both mounted on the mounting frame (11). The mounting frame (11) is used to drive the fiber conveying mechanism (2) and the fiber implantation mechanism (3) to move on the frame body (1). The plate fixing mechanism (4) is set on the frame body (1) for fixing the foam sandwich composite material to the frame body (1); The fiber implantation mechanism (3) includes a needle (31), an angle adjustment component (32), and a pushing component (33). The angle adjustment component (32) is used to adjust the angle between the needle (31) and the foam core composite material. The pushing component (33) is used to push the needle (31) after the angle adjustment so that the fiber thread conveyed by the fiber conveying mechanism (2) enters the foam core composite material. The fiber conveying mechanism (2) includes a spool (21), a positioning component (22), and a cutting component (23). The spool (21) is mounted on the mounting frame (11). The positioning component (22) and the cutting component (23) are both mounted on the spool (21). The positioning component (22) is used to position the fiber thread, and the cutting component (23) is used to cut off both ends of the fiber thread. The spool (21) has a perforation (211). The needle (31) pushes the fiber thread fixed by the positioning component (22) out of the perforation (211) into the foam core composite material.

2. The equipment for preparing fibers embedded in foam sandwich composite materials according to claim 1, characterized in that, The spool (21) is rotatably connected to the mounting bracket (11); multiple sets of positioning components (22) are provided, and multiple sets of positioning components (22) are arranged around the spool (21) to divide the fiber thread on the spool (21) into multiple segments; multiple sets of cutting components (23) are provided, and multiple sets of cutting components (23) are arranged around the spool (21) to cut each segment of fiber thread.

3. The equipment for preparing fibers embedded in foam sandwich composite materials according to claim 1, characterized in that, The positioning component (22) includes a positioning block (221) and two clamping plates (222). The positioning block (221) is located at the perforation (211), and the positioning block (221) has a notch (2211) communicating with the perforation (211). The two clamping plates (222) are located on both sides of the positioning block (221). When conveying the fiber thread, the fiber thread is wound around the outside of the multiple positioning blocks (221), and the fiber thread is located between the clamping plates (222) and the spool (21).

4. The equipment for preparing fibers embedded in foam sandwich composite materials according to claim 1, characterized in that, The cutting assembly (23) includes a sliding seat (231), a mounting seat (232), and a cutter (233). The sliding seat (231) is slidably connected to the spool (21). The mounting seat (232) is disposed on the sliding seat (231). The cutter (233) is disposed on the mounting seat (232). The fiber thread on the spool (21) is located at the bottom of the cutter (233). When the needle (31) pushes the fiber thread, the fiber thread bends and contacts the cutter (233).

5. The equipment for preparing fibers embedded in foam sandwich composite materials according to claim 1, characterized in that, The angle adjustment component (32) includes a connecting shaft (321) and a rotating block (322). The connecting shaft (321) is disposed on the mounting bracket (11), and the rotating block (322) is sleeved on the connecting shaft (321). The needle (31) and the push component (33) are both disposed on the rotating block (322).

6. The equipment for preparing fibers embedded in foam sandwich composite materials according to claim 5, characterized in that, The pushing component (33) includes a linear drive (331), a slide rail (332), and a slider (333). The slide rail (332) is disposed on the rotating block (322), and the slider (333) is slidably adapted to the slide rail (332). The needle (31) is disposed on the slider (333), and the linear drive (331) is used to drive the slider (333) to move on the slide rail (332).

7. The equipment for preparing fibers embedded in foam sandwich composite materials according to claim 1, characterized in that, The mounting bracket (11) is provided with a support plate (12), and a limiting groove (121) is provided on the support plate (12). The support plate (12) is located at the bottom of the coil (21), and the limiting groove (121) corresponds to the through hole (211). The mounting bracket (11) is provided with an adjustment component (13) for driving the support plate (12) to move.

8. The equipment for preparing fibers embedded in foam sandwich composite materials according to claim 1, characterized in that, The plate fixing mechanism (4) includes a support frame (41) and a placement frame (42). The support frame (41) is disposed on the frame body (1), and the placement frame (42) is disposed on the support frame (41). The support frame (41) is provided with a plurality of clamping parts (43) for fixing the edge of the foam sandwich composite material along the length direction.

9. The equipment for preparing fibers embedded in foam sandwich composite materials according to claim 1, characterized in that, The frame body (1) is provided with a first drive assembly (14) for driving the mounting frame (11) to move along the X-axis and a second drive assembly (15) for driving the mounting frame (11) to move along the Y-axis.

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