Carbon fiber plate with shielding function and manufacturing equipment thereof

Abstract

The present application relates to carbon fiber plate production and processing technical field, specifically to a kind of carbon fiber plate with shielding function and manufacturing equipment thereof, carbon fiber plate includes epoxy resin protective layer, nickel-plated carbon fiber fabric layer, resin impregnated matrix, lower layer symmetric nickel-plated carbon fiber cloth and resin protective surface layer in turn from top to bottom, manufacturing equipment includes magnetron sputtering equipment, magnetron sputtering equipment includes unwinding roller, winding roller and plating roller and guide roller for guiding carbon fiber cloth, the carbon fiber plate with shielding function and manufacturing equipment thereof, through the combination of rubber flattening roller and support ring one and support ring two combination pre-stretching structure, cooperate with the uniform inflation of inflatable tube low pressure, can make rubber sleeve whole keep straight, eliminate the uneven problem of carbon cloth transverse tension caused by traditional barrel-shaped inflation roller middle inflation, effectively smooth carbon fiber cloth tiny wrinkle, avoid crease plating, plating layer peeling, uneven thickness when vacuum plating.

Description

Technical Field

[0001] This invention relates to the field of carbon fiber plate production and processing technology, specifically to a carbon fiber plate with shielding function and its manufacturing equipment. Background Technology

[0002] To achieve shielding effectiveness, carbon fiber sheets require internal nickel plating during processing. Currently, magnetron sputtering is commonly used for nickel plating, where nickel is deposited onto the carbon fiber fabric surface through bombardment sputtering. While the surface of carbon fiber fabric treated with magnetron sputtering is smooth and free of large wrinkles, some fine wrinkles may remain. If these wrinkles are not pre-treated, they can lead to creases, incomplete plating, and peeling of the plating layer when introduced into the vacuum chamber. Traditional methods use a bucket-shaped pneumatic expansion roller, which has a bulging central profile. However, this method results in a larger outer diameter in the center of the roller, causing forced lateral stretching of the carbon fiber fabric in the middle, while the stretching at the edges is minimal. This leads to a significant lateral tension gradient across the entire fabric, ultimately resulting in thinner carbon filaments in the center, a thinner plating layer, and carbon fiber stacking at the edges, with some areas experiencing excessively thick plating. Nevertheless, the pneumatic expansion roller offers advantages such as cushioning fabric deformation, releasing internal stress generated by arc-shaped stretching, and preventing localized slippage and fuzzing of the carbon filaments.

[0003] Therefore, it is necessary to design a carbon fiber plate with shielding function and its manufacturing equipment, which can not only produce carbon fiber plates with shielding function, but also ensure the uniformity of nickel plating on carbon fiber cloth during the production process, and at the same time achieve the effect of buffering cloth deformation. Summary of the Invention

[0004] To address the aforementioned technical shortcomings, the purpose of this invention is to provide a carbon fiber plate with shielding function and its manufacturing equipment, which can not only produce carbon fiber plates with shielding function, but also ensure the uniformity of nickel plating on carbon fiber cloth during the production process, and at the same time achieve the effect of buffering cloth deformation.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: The present invention provides a carbon fiber plate with shielding function and its manufacturing equipment. A carbon fiber plate with shielding function includes an epoxy resin protective layer, a nickel-plated carbon fiber fabric layer, a resin impregnated matrix, a lower symmetrical nickel-plated carbon fiber cloth, and a resin protective surface layer, which are distributed from top to bottom. The nickel-plated carbon fiber fabric layer is obtained by depositing a nickel layer on the surface of the carbon fiber substrate using magnetron sputtering nickel plating technology.

[0006] Preferably, a manufacturing device for a carbon fiber sheet with shielding function includes a magnetron sputtering device. The magnetron sputtering device includes an unwinding roller, a winding roller, a coating roller, and a guide roller for guiding the carbon fiber cloth. The carbon fiber cloth is output from the unwinding roller and adhered to the coating roller, and then wound up by the winding roller. A rubber flattening roller is provided between the two guide rollers. The rubber flattening roller includes two support rings, a rubber sleeve, and two rotating covers. The rotating covers are respectively installed at both ends of the rubber sleeve. An air inflator is installed through the middle of the rotating covers and the rubber sleeve. The two support rings are located inside the rubber sleeve and are installed on the air inflator. The support rings are used to support the rubber sleeve outward. The two support rings are symmetrically arranged along the axial central section of the rubber sleeve.

[0007] Preferably, it also includes a drive tube, which is inserted into the middle of the rotating cover and is slidably connected to the rotating cover. The inner edge of the drive tube is in contact with the outer edge of the inflation tube. A connecting ring is provided on the drive tube. The support ring includes a frame plate, multiple arc-shaped support plates, and multiple hinge rods. The frame plate is fixedly installed on the inflation tube. The arc-shaped support plates are slidably installed on the frame plate along the radial direction of the frame plate. One end of the hinge rod is hinged to the arc-shaped support plate, and the other end of the hinge rod is hinged to the connecting ring.

[0008] Preferably, there are two drive tubes, which are symmetrically arranged. Each drive tube is connected to a support ring one, and a support ring two is provided between the two drive tubes. The structure of the support ring two is the same as that of the support ring one. Each support ring two has a hinge rod two on both sides of the arc-shaped support plate two. One end of the hinge rod two is hinged to the arc-shaped support plate two, and the other end of the hinge rod two is hinged to the end of the drive tube. The length of the hinge rod two is less than the length of the hinge rod one.

[0009] Preferably, each arc-shaped support plate is fixedly provided with a slide bar, and the frame plate is provided with a slide groove for the slide bar to slide.

[0010] Preferably, a plurality of slide bars are provided on the outer edge of the drive tube, and a slide groove is provided on the inner edge of the rotating cover for the slide bars to slide.

[0011] Preferably, the drive tube is provided with an arc-shaped connecting plate, and the frame plate is provided with a guide groove for the arc-shaped connecting plate to slide.

[0012] Preferably, a plurality of air outlets are provided on the outer edge of the air tube along the axial direction.

[0013] Preferably, it also includes an axis pushing mechanism for pushing the drive tube to move horizontally. The axis pushing mechanism includes a push rod capable of pushing along the axis, a retaining ring fixedly provided on the inflation tube, and an annular groove for the retaining ring to engage on the push rod.

[0014] Preferably, each arc-shaped support plate has arc-shaped protrusions on both sides, and the frame plate has grooves for the arc-shaped protrusions to be embedded in.

[0015] The beneficial effects of this invention are as follows: The carbon fiber plate with shielding function and its manufacturing equipment, through the combination of a rubber flattening roller and a support ring one and a support ring two pre-support structure, combined with low-pressure uniform inflation through an air inflator, can keep the rubber sleeve flat overall, eliminating the problem of uneven lateral tension of the carbon cloth caused by the bulging in the middle of the traditional barrel-shaped expansion roller, effectively smoothing out the fine wrinkles of the carbon fiber cloth, and avoiding creases, missed plating, and uneven thickness of the plating layer during vacuum coating. At the same time, it retains the advantages of the air-filled expansion roller in buffering fabric deformation, releasing tensile internal stress, and preventing carbon filament slippage and fuzzing, thus stably ensuring the uniformity of the nickel-plated carbon fiber fabric layer. Attached Figure Description

[0016] 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 these drawings without creative effort.

[0017] Figure 1 This is a partial front view of the present invention.

[0018] Figure 2 This is a cross-sectional view of the rubber flattening roller before it is supported.

[0019] Figure 3 for Figure 2 A magnified view of a portion of point C.

[0020] Figure 4 This is a cross-sectional view of the rubber flattening roller under support.

[0021] Figure 5 This is a schematic diagram of the three-dimensional structure of the support ring before it is opened.

[0022] Figure 6 This is a schematic diagram of the three-dimensional structure after the support ring is opened.

[0023] Figure 7 This is a schematic diagram of the three-dimensional structure after the second support ring is opened.

[0024] Figure 8 A schematic diagram showing the disassembled three-dimensional structure supporting ring one.

[0025] Figure 9 This is a front view showing the push rod engaging with the retaining ring.

[0026] Figure 10 This is a schematic diagram of the layering of carbon fiber sheets.

[0027] Explanation of reference numerals in the attached drawings: 1. Unwinding roller; 2. Rewinding roller; 3. Coating roller; 4. Guide roller; 5. Carbon fiber cloth; 6. Rubber flattening roller; 6a. Support ring 1; 6a1. Frame plate; 6a2. Arc-shaped support plate 1; 6a3. Hinge rod 1; 6a4. Sliding strip 1; 6a5. Sliding groove 1; 6a6. Guide groove; 6a7. Arc-shaped protrusion; 6b. Rubber sleeve; 6c. Turning cover; 6d. Inflation pipe; 6d1. Outlet 6e, drive tube; 6e1, connecting ring; 6e2, slide bar II; 6e3, arc-shaped connecting plate; 6f, retaining ring; 6h, push rod; 7, support ring II; 7a, hinge rod II; 7b, arc-shaped support plate II; 8, carbon fiber plate; 8a, epoxy resin protective layer; 8b, nickel-plated carbon fiber fabric layer; 8c, resin impregnated matrix; 8d, lower symmetrical nickel-plated carbon fiber cloth; 8e, resin protective surface layer. Detailed Implementation

[0028] 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 some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Example: This invention provides a carbon fiber plate with shielding function and its manufacturing equipment, such as... Figure 1-10 The structure comprises, from top to bottom, an epoxy resin protective layer 8a, a nickel-plated carbon fiber fabric layer 8b, a resin-impregnated substrate 8c, a lower symmetrically plated nickel-plated carbon fiber cloth 8d, and a resin protective surface layer 8e. The nickel-plated carbon fiber fabric layer 8b is prepared by depositing a nickel layer on the surface of the carbon fiber substrate using magnetron sputtering nickel plating technology. The carbon fiber plate 8 produced using nickel plating technology has a shielding function and a relatively thin overall structure.

[0030] The device includes a magnetron sputtering system, comprising an unwinding roller 1, a winding roller 2, a coating roller 3, and guide rollers 4 for guiding carbon fiber cloth 5. The carbon fiber cloth 5 is output from the unwinding roller 1 and adhered to the coating roller 3, and then wound up by the winding roller 2. A rubber flattening roller 6 is provided between the two guide rollers 4. The rubber flattening roller 6 includes two support rings 6a, a rubber sleeve 6b, and two rotating covers 6c. The rotating covers 6c are respectively installed at both ends of the rubber sleeve 6b. An inflation tube 6d is installed through the middle of the rotating covers 6c and the rubber sleeve 6b. The two support rings 6a are located inside the rubber sleeve 6b and are installed on the inflation tube 6d. The support rings 6a are used to support the rubber sleeve 6b outward. The two support rings 6a are symmetrically arranged along the axial central section of the rubber sleeve 6b. When the rubber sleeve 6b needs to support the carbon fiber cloth 5, the support ring 6a pushes the rubber sleeve 6b outward and supports it. Subsequently, when air is inflated into the rubber sleeve 6b through the inflation tube 6d, because the support ring 6a and the two sides of the rubber sleeve 6b are stretched outward, the easily expandable area of ​​the rubber sleeve 6b is evenly stretched, preventing excessive expansion in the middle of the rubber sleeve 6b and making the overall outline of the rubber sleeve 6b nearly horizontal. When producing a carbon fiber plate with shielding function, this ensures the uniformity of nickel plating on the carbon fiber cloth during production, and the flexible inflatable rubber sleeve adapts to the width of the cloth, buffering the tensile deformation of the carbon fiber cloth during nickel plating.

[0031] In order to drive the arc-shaped support plate 6a2 located inside the rubber sleeve 6b to be pushed outward, a drive tube 6e is also included. The drive tube 6e is inserted into the middle of the rotating cover 6c and is slidably connected to the rotating cover 6c. The inner edge of the drive tube 6e is in contact with the outer edge of the inflation tube 6d. A connecting ring 6e1 is provided on the drive tube 6e. The support ring 6a includes a frame plate 6a1, multiple arc-shaped support plates 6a2 and multiple hinge rods 6a3. The frame plate 6a1 is fixedly installed on the inflation tube 6d. The arc-shaped support plates 6a2 are slidably installed on the frame plate 6a1 along the radial direction of the frame plate 6a1. One end of the hinge rod 6a3 is hinged to the arc-shaped support plate 6a2, and the other end of the hinge rod 6a3 is hinged to the connecting ring 6e1. By pushing along the axis of the drive tube 6e, the connecting ring 6e1 pushes the hinge rod 6a3, causing the hinge rod 6a3 to push the arc-shaped support plate 6a2 to slide along the frame plate 6a1. Multiple arc-shaped support plates 6a2 slide outwards simultaneously, causing them to support the rubber sleeve 6b outwards. When the rotating cover 6c rotates, it drives the drive tube 6e, which is slidably connected to it, to rotate together, ensuring that the arc-shaped support plate 6a2 moves with the rubber sleeve 6b, preventing misalignment and friction between them.

[0032] There are two drive tubes 6e, which are symmetrically arranged. Each drive tube 6e is connected to a support ring 6a. A support ring 7 is provided between the two drive tubes 6e. The structure of the support ring 7 is the same as that of the support ring 6a. Each support ring 7 has a hinge rod 7a on both sides of the arc-shaped support plate 7b. One end of the hinge rod 7a is hinged to the arc-shaped support plate 7b, and the other end of the hinge rod 7a is hinged to the end of the drive tube 6e. The length of the hinge rod 7a is less than the length of the hinge rod 6a3. Since the frame plate on support ring 2 7 is also fixedly installed on the inflation tube 6d, when the drive tube 6e on the left or right is pushed, it will drive the arc-shaped support plate 2 7b to move outward through the hinge rod 2 7a. Because the length of hinge rod 2 7a is less than the length of hinge rod 1 6a3, the outward extension length of arc-shaped support plate 2 7b is less than the outward extension length of arc-shaped support plate 1 6a2 on support ring 1 6a. This prevents arc-shaped support plate 2 7b from contacting the inner side of the inflated rubber sleeve 6b. Arc-shaped support plate 2 7b mainly serves as a pre-support, preventing the instantaneous air pressure from excessively expanding the rubber sleeve 6b and causing curvature deformation. Furthermore, when arc-shaped support plate 2 7b moves outward, it can simultaneously drive the hinge rod 2 7a on the other side, allowing one drive structure to simultaneously drive support ring 2 7 and both support rings 1 6a to move simultaneously, ensuring that the two support rings 1 6a expand to the same extent. When low-pressure gas of 0.02~0.05MPa is introduced into the inflation tube 6d, it will only cause the rubber sleeve 6b to expand outward by 2-3mm.

[0033] Each arc-shaped support plate 6a2 is fixedly equipped with a slider 6a4, and the frame plate 6a1 is provided with a groove 6a5 for the slider 6a4 to slide. Through the cooperation of the slider 6a4 and the groove 6a5, the arc-shaped support plate 6a2 can slide within the frame plate 6a1.

[0034] Multiple sliders 6e2 are provided on the outer edge of the drive tube 6e, and a groove is provided on the inner edge of the rotating cover 6c for the sliders 6e2 to slide. Through the action of the sliders 6e2 and the groove, the drive tube 6e can be pushed horizontally inside the rotating cover 6c.

[0035] An arc-shaped connecting plate 6e3 is provided on the drive tube 6e, and a guide groove 6a6 is provided on the frame plate 6a1 for the arc-shaped connecting plate 6e3 to slide. Through the guide groove 6a6, the arc-shaped connecting plate 6e3 can avoid the frame plate 6a1 when sliding, and can also provide guidance for the movement of the drive tube 6e.

[0036] Several air outlets 6d1 are provided on the outer edge of the inflation tube 6d along the axial direction. The air outlets 6d1 enable the gas inside the inflation tube 6d to diffuse more evenly when it is introduced into the rubber sleeve 6b, thus avoiding excessive instantaneous airflow impact force.

[0037] It also includes an axis-pushing mechanism for driving the drive tube 6e horizontally. The axis-pushing mechanism includes a push rod 6h capable of axial pushing, and a retaining ring 6f fixedly installed on the inflation tube 6d. The push rod 6h has an annular groove for the retaining ring 6f to engage. By pushing the push rod 6h horizontally through the axis-pushing mechanism, the retaining ring 6f can be moved, thereby moving the drive tube 6e connected to it.

[0038] Each arc-shaped support plate 6a2 has an arc-shaped protrusion 6a7 on both sides, and the frame plate 6a1 has a groove for the arc-shaped protrusion 6a7 to be embedded in. The arc-shaped protrusion 6a7 can extend the top area of ​​the arc-shaped support plate 6a2, and when it comes into contact with the rubber sleeve 6b, it can avoid the situation of being squeezed and broken due to insufficient contact area.

[0039] In use, the unwinding roller 1 outputs carbon fiber cloth 5, which is then conveyed by the guide roller 4 to the bonding coating roller 3 for magnetron sputtering nickel plating, and then wound up by the take-up roller 2. During processing, the carbon fiber cloth 5 passes through the rubber flattening roller 6 between the two guide rollers 4. The axis pushing mechanism drives the push rod 6h to push the drive tube 6e. The drive tube 6e, with the help of the connecting ring 6e1 and the hinge rod 6a3, pulls the arc support plate 6a2 radially outward along the slide groove 6a5 of the frame plate 6a1. Simultaneously, the hinge rod 7a drives the arc support plate 7b of the support ring 7 to pre-support and limit its position. Then, the inflation pipe 6d introduces low-pressure gas of 0.02~0.05MPa through the evenly distributed air outlets 6d1. With the support rings 6a at both ends pre-opening the rubber sleeve 6b on both sides and the support ring 7 in the middle preventing excessive expansion, the rubber sleeve 6b only expands outward uniformly by 2-3mm to form a flat support surface.

[0040] This invention utilizes a pre-support structure combining a rubber flattening roller 6 with support rings 6a and 7, along with low-pressure uniform inflation via an air inflator 6d. This ensures the rubber sleeve 6b remains straight, eliminating the uneven lateral tension on the carbon cloth caused by the bulging of traditional barrel-shaped expansion rollers. It effectively smooths out fine wrinkles in the carbon fiber cloth, preventing creases, missed plating, peeling, and uneven coating thickness during vacuum coating. Simultaneously, it retains the advantages of the inflatable expansion roller in buffering fabric deformation, releasing tensile stress, and preventing carbon filament slippage and fuzzing, thus ensuring a stable and uniform coating of the nickel-plated carbon fiber fabric layer 8b.

[0041] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A carbon fiber plate with shielding function, characterized in that, The structure comprises, from top to bottom, an epoxy resin protective layer (8a), a nickel-plated carbon fiber fabric layer (8b), a resin impregnated substrate (8c), a lower symmetrical nickel-plated carbon fiber cloth (8d), and a resin protective surface layer (8e). The nickel-plated carbon fiber fabric layer (8b) is prepared by depositing a nickel layer on the surface of a carbon fiber substrate using magnetron sputtering nickel plating technology.

2. The manufacturing equipment for a carbon fiber plate with shielding function as described in claim 1, characterized in that, The device includes a magnetron sputtering system, which includes an unwinding roller (1), a winding roller (2), a coating roller (3), and a guide roller (4) for guiding carbon fiber cloth (5). The carbon fiber cloth (5) is output from the unwinding roller (1) and adhered to the coating roller (3), and then wound up by the winding roller (2). A rubber flattening roller (6) is provided between the two guide rollers (4). The rubber flattening roller (6) includes two support rings (6a), a rubber sleeve (6b), and two rotating covers (6c). The rotating covers (6c) are respectively installed at both ends of the rubber sleeve (6b). An air inflator (6d) is installed through the middle of the rotating covers (6c) and the rubber sleeve (6b). The two support rings (6a) are located inside the rubber sleeve (6b) and installed on the air inflator (6d). The support rings (6a) are used to support the rubber sleeve (6b) outward. The two support rings (6a) are symmetrically arranged along the axial center section of the rubber sleeve (6b).

3. The manufacturing equipment for a carbon fiber plate with shielding function as described in claim 2, characterized in that, It also includes a drive tube (6e), which is inserted into the middle of the rotating cover (6c) and is slidably connected to the rotating cover (6c). The inner edge of the drive tube (6e) is in contact with the outer edge of the inflation tube (6d). A connecting ring (6e1) is provided on the drive tube (6e). The support ring (6a) includes a frame plate (6a1), multiple arc-shaped support plates (6a2) and multiple hinge rods (6a3). The frame plate (6a1) is fixedly installed on the inflation tube (6d). The arc-shaped support plates (6a2) are slidably installed on the frame plate (6a1) along the radial direction of the frame plate (6a1). One end of the hinge rod (6a3) is hinged to the arc-shaped support plate (6a2), and the other end of the hinge rod (6a3) is hinged to the connecting ring (6e1).

4. The manufacturing equipment for a carbon fiber plate with shielding function as described in claim 3, characterized in that, There are two drive tubes (6e), which are symmetrically arranged. Each drive tube (6e) is connected to the first support ring (6a). A second support ring (7) is arranged between the two drive tubes (6e). The structure of the second support ring (7) is the same as that of the first support ring (6a). Each arc-shaped support plate (7b) on the second support ring (7) has a hinge rod (7a) on both sides. One end of the hinge rod (7a) is hinged to the arc-shaped support plate (7b), and the other end of the hinge rod (7a) is hinged to the end of the drive tube (6e). The length of the hinge rod (7a) is less than the length of the first hinge rod (6a3).

5. The manufacturing equipment for a carbon fiber plate with shielding function as described in claim 3, characterized in that, Each arc-shaped support plate (6a2) is fixedly equipped with a slide bar (6a4), and the frame plate (6a1) is provided with a groove (6a5) for the slide bar (6a4) to slide.

6. The manufacturing equipment for a carbon fiber plate with shielding function as described in claim 1, characterized in that, Multiple slide bars 2 (6e2) are provided on the outer edge of the drive tube (6e), and a slide groove 2 for sliding the slide bars 2 (6e2) is provided on the inner edge of the rotating cover (6c).

7. The manufacturing equipment for a carbon fiber plate with shielding function as described in claim 1, characterized in that, An arc-shaped connecting plate (6e3) is provided on the drive tube (6e), and a guide groove (6a6) is provided on the frame plate (6a1) for the arc-shaped connecting plate (6e3) to slide.

8. The manufacturing equipment for a carbon fiber plate with shielding function as described in claim 1, characterized in that, Several air outlets (6d1) are provided on the outer edge of the air tube (6d) along the axial direction.

9. The manufacturing equipment for a carbon fiber plate with shielding function as described in claim 3, characterized in that, It also includes an axis pushing mechanism for pushing the drive tube (6e) to move horizontally. The axis pushing mechanism includes a push rod (6h) that can push the axis, a retaining ring (6f) fixedly provided on the inflation tube (6d), and an annular groove for the retaining ring (6f) to be engaged on the push rod (6h).

10. The manufacturing equipment for a carbon fiber plate with shielding function as described in claim 3, characterized in that, Each arc-shaped support plate (6a2) has an arc-shaped protrusion (6a7) on both sides, and the frame plate (6a1) has a groove for the arc-shaped protrusion (6a7) to be embedded in.

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