High-performance fiber-metal laminate rapid prototyping device

Abstract

This invention relates to a high-performance fiber-metal laminate rapid prototyping device, belonging to the field of sheet metal forming technology. The device includes a base plate, above which are sequentially arranged a first yarn rack, a glue-impregnation tank, a second yarn rack, a pre-pressing mechanism, a preheating mechanism, a pressurizing mechanism, a heating and pressurizing shaping mechanism, a cooling mechanism, a conveying mechanism, a cutting mechanism, and a frame. This invention effectively avoids relative slippage between the multi-layer fiber cloth and the metal strip during rolling, thereby preventing a decrease in overall stiffness and load-bearing capacity due to interface failure, and significantly reducing the initiation and propagation of cracks. Simultaneously, the rollers apply sufficient compaction to the multi-layer material, completely eliminating interlayer bubbles and local debonding defects, significantly improving the subsequent service performance and durability of the sheet metal. This invention offers high forming efficiency and fast forming speed.

Description

Technical Field

[0001] This invention relates to the field of sheet metal forming technology, and in particular to a high-performance fiber-metal laminate rapid forming device. Background Technology

[0002] Fiber-metal laminates are a type of high-performance hybrid composite material made by alternating layers of fiber composite materials and metal strips (such as aluminum, titanium, and magnesium). They combine the high specific strength and specific modulus of fibers with the toughness, impact resistance, and processability of metals, thus showing broad application prospects in aerospace, rail transportation, and automotive industries.

[0003] A literature search of existing technologies revealed that Chinese invention patent CN113996770B discloses a rolling forming equipment and method for carbon fiber reinforced metal plates, specifically a method for directly preparing carbon fiber reinforced metal matrix composite plates using a rolling process. This method pre-lays carbon fibers onto an ultra-thin metal plate, avoiding the problem of uneven carbon fiber distribution during composite plate preparation. However, this method has limited rolling force, and relative slippage easily occurs between the fibers and metal during rolling, leading to concentrated interlayer shear deformation and insufficient compaction, resulting in interlayer bubbles or localized debonding, affecting subsequent service performance. Furthermore, this method exhibits uneven temperature distribution during rolling; excessive resin softening in high-temperature zones causes fiber instability, while in low-temperature zones, the resin remains brittle and prone to cracking, resulting in non-uniform deformation of the plate.

[0004] Therefore, there is an urgent need for a device that can control temperature precisely, produce with high precision, and be capable of large-scale continuous production to solve the above problems. Summary of the Invention

[0005] To address the aforementioned technical problems, this invention provides a high-performance fiber-reinforced metal laminate rapid prototyping device. The technical solution of this invention is as follows: A high-performance fiber-metal laminate rapid prototyping device includes a base plate, and a first yarn frame, an impregnation tank, a second yarn frame, a pre-pressing mechanism, a preheating mechanism, a pressurizing mechanism, a heating and pressurizing shaping mechanism, a cooling mechanism, a conveying mechanism, a cutting mechanism, and a frame are arranged sequentially and at intervals above the base plate. The first yarn frame is detachably connected to the base plate and is used to suspend multiple layers of fiber cloth; The impregnation tank is located on one side of the first yarn frame and is detachably connected to the bottom plate. It is used to pre-store resin and make the multi-layer fiber cloth uniformly impregnated with resin. The second yarn rack is located on one side of the impregnation tank and is detachably connected to the bottom plate, and is used to suspend the separator film, absorbent felt and metal strip; The pre-compression mechanism is located on one side of the second yarn frame and is used to pre-compress the multi-layer fiber cloth and metal strip to obtain the initial fiber-metal layer. The preheating mechanism is located on one side of the pre-compression mechanism and is used to preheat the initial fiber metal layer; The pressurizing mechanism is located on one side of the preheating mechanism and is used to pressurize the preheated initial fiber-metal layer so that the multi-layer fiber cloth and the metal strip are tightly bonded together. The heating and pressurizing shaping mechanism is located on one side of the pressurizing mechanism and is used to heat and pressurize the initial fiber metal layer after pressurization. The frame is fixedly connected to the base plate; The cooling mechanism is fixedly connected to the frame and is located on one side of the heating and pressurizing shaping mechanism, and is used to cool the initial fiber metal layer after heating and pressurizing shaping; The transmission mechanism is mounted on the frame and located on one side of the cooling mechanism. The cutting mechanism is mounted on the frame and located on one side of the transmission mechanism. The transmission mechanism is used to transmit the cooled initial fiber metal layer to the cutting mechanism. The cutting mechanism is used to cut the cooled initial fiber metal layer to obtain a shaped fiber metal laminate.

[0006] Preferably, the pre-tightening mechanism includes a pre-tightening support frame, which is detachably connected to the base plate and located on one side of the second yarn frame. Pre-tightening hydraulic cylinders are fixedly connected to both sides of the top of the pre-tightening support frame. A pre-tightening slide plate is fixedly connected to the telescopic end of the pre-tightening hydraulic cylinder. A first pre-tightening shaft is rotatably connected to the middle of the pre-tightening slide plate. A first pre-tightening roller is fixedly connected to the first pre-tightening shaft. Pre-tightening fixing plates are fixedly connected to both sides of the middle of the pre-tightening support frame. A second pre-tightening shaft is rotatably connected to the middle of the pre-tightening fixing plate. A second pre-tightening roller is fixedly connected to the second pre-tightening shaft.

[0007] Preferably, the preheating mechanism includes a preheating support frame and a preheating stepped motor base. The preheating support frame and the preheating stepped motor base are detachably connected to the base plate and located on one side of the pre-pressing mechanism. Preheating hydraulic cylinders are fixedly connected to both sides of the top of the preheating support frame. A preheating slide plate is fixedly connected to the telescopic end of each preheating hydraulic cylinder. Two parallel first preheating shafts are rotatably connected to the middle of the preheating slide plate. A first preheating roller is fixedly connected to each first preheating shaft. A first preheating motor is fixedly connected to the top of the preheating stepped motor base. A first preheating drive sprocket is fixedly connected to the end of the output shaft of the first preheating motor. A first preheating driven sprocket is fixedly connected to one of the first preheating shafts. The preheating drive sprocket is connected to the first preheating driven sprocket via a first preheating chain. A second preheating drive sprocket is fixedly connected to one of the first preheating shafts, and a second preheating driven sprocket is fixedly connected to the other first preheating shaft. The second preheating drive sprocket and the second preheating driven sprocket are connected via a second preheating chain. Preheating fixing plates are fixedly connected to both sides of the middle of the preheating support frame. Two parallel second preheating shafts are rotatably connected to the middle of the preheating fixing plates. Second preheating rollers are fixedly connected to the second preheating shafts. A second preheating motor is fixedly connected to the upper part of the preheating stepped motor base. The second preheating motor and the two second preheating shafts are driven by sprockets and chains.

[0008] Preferably, the pressurizing mechanism includes a pressurizing support frame and a pressurizing stepped motor base. The pressurizing support frame and the pressurizing stepped motor base are detachably connected to the base plate and located on one side of the preheating mechanism. Pressurizing hydraulic cylinders are fixedly connected to both sides of the top of the pressurizing support frame. A pressurizing slide plate is fixedly connected to the telescopic end of each pressurizing hydraulic cylinder. Several parallel first pressurizing shafts are rotatably connected to the middle of the pressurizing slide plate. First pressurizing rollers are fixedly connected to the first pressurizing shafts. A first pressurizing motor is fixedly connected to the top of the pressurizing stepped motor base. A first pressurizing drive sprocket is fixedly connected to the end of the output shaft of the first pressurizing motor. One of the first pressurizing rollers... A first pressure driven sprocket is fixedly connected to the pressure shaft. The first pressure driving sprocket and the first pressure driven sprocket are connected through a first pressure chain. Every two first pressure shafts are driven by a sprocket and a chain. Pressure fixing plates are fixedly connected to both sides of the middle of the pressure support frame. Several parallel second pressure shafts are rotatably connected to the middle of the pressure fixing plates. Second pressure rollers are fixedly connected to the second pressure shafts. A second pressure motor is fixedly connected to the upper part of the pressure stepped motor base. The second pressure motor is driven by a sprocket and a chain to one of the second pressure shafts. Every two second pressure shafts are driven by a sprocket and a chain.

[0009] Preferably, among the plurality of first pressure rollers, flexible pressure rollers and rigid pressure rollers are arranged alternately, and among the plurality of second pressure rollers, flexible pressure rollers and rigid pressure rollers are arranged alternately.

[0010] Preferably, the cooling mechanism includes two sets of stainless steel condensing plates arranged vertically, and both sets of stainless steel condensing plates are fixedly connected to the frame.

[0011] Preferably, the transmission mechanism includes two parallel guide rails, which are fixedly connected to the frame, and an electric gripper is slidably connected to the guide rails.

[0012] Preferably, the cutting mechanism includes a timing belt module, which is fixedly connected to the frame. A ball screw pair is fixedly connected to the slider of the timing belt module, and a cutting saw is mounted on the slider of the ball screw pair.

[0013] Preferably, the pressurizing mechanism further includes a pressure sensor, which is fixedly connected to the pressurizing hydraulic cylinder.

[0014] Preferably, the preheating mechanism further includes a plurality of temperature sensors, which are fixedly connected to the first preheating roller and the second preheating roller respectively.

[0015] All of the above-mentioned optional technical solutions can be combined arbitrarily, and the present invention will not provide a detailed description of the structure after each combination.

[0016] By means of the above solution, the beneficial effects of the present invention are as follows: By pre-compacting the multilayer fiber cloth and metal strip using a pre-compression mechanism, relative movement between them can be reduced. Preheating the initial fiber-metal layer using a preheating mechanism reduces resin viscosity, allowing excess resin to flow out, and improves subsequent processing efficiency. A pressurizing mechanism ensures tight bonding between the multilayer fiber cloth and metal strip, eliminating interlayer air bubbles. A heating and pressurizing shaping mechanism ensures the quality of the formed sheet. A cooling mechanism rapidly cools the sheet. A conveying and cutting mechanism enables rapid sheet forming. Therefore, this invention avoids relative slippage between the multilayer fiber cloth and metal strip during rolling, ensuring concentrated interlayer shear deformation, thus preventing a decrease in overall stiffness and load-bearing capacity due to interface failure, significantly reducing crack initiation and propagation, completely eliminating interlayer air bubbles and localized debonding defects, and significantly improving the subsequent service performance and durability of the sheet.

[0017] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, the preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the high-performance fiber metal laminate rapid prototyping device provided by the present invention.

[0019] Figure 2 This is a schematic diagram of the pre-compression mechanism in this invention.

[0020] Figure 3 This is a schematic diagram of the preheating mechanism in this invention.

[0021] Figure 4 This is a schematic diagram of the pressurization mechanism in this invention.

[0022] Figure 5 This is a schematic diagram of the stainless steel condenser plate in this invention.

[0023] Figure 6 This is a partial structural diagram of the transmission mechanism in this invention.

[0024] Figure 7 This is a partial structural schematic diagram of the cutting mechanism in this invention.

[0025] Figure 8 It is a specific shape of the first heating and pressure roller or the second heating and pressure roller in this invention. Detailed Implementation

[0026] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0027] like Figure 1 As shown, the high-performance fiber metal laminate rapid prototyping device provided in this embodiment of the invention includes a base plate 1, and a first yarn frame 2, an impregnation tank 3, a second yarn frame 4, a pre-pressing mechanism 5, a preheating mechanism 6, a pressurizing mechanism 7, a heating and pressurizing shaping mechanism 8, a cooling mechanism 9, a transmission mechanism 10, a cutting mechanism 11 and a frame 12 are arranged sequentially and at intervals above the base plate 1. The first yarn frame 2 is detachably connected to the base plate 1 and is used to suspend multiple layers of fiber cloth; The impregnation tank 3 is located on one side of the first yarn frame 2 and is detachably connected to the base plate 1. It is used to pre-store resin and make the multi-layer fiber cloth uniformly impregnated with resin. The second yarn frame 4 is located on one side of the impregnation tank 3 and is detachably connected to the base plate 1, and is used to suspend the separator film, absorbent felt and metal strip; The pre-compression mechanism 5 is located on one side of the second yarn frame 4 and is used to pre-compress the multi-layer fiber cloth and metal strip to obtain the initial fiber-metal layer. The preheating mechanism 6 is located on one side of the pre-compression mechanism 5 and is used to preheat the initial fiber metal layer; The pressurizing mechanism 7 is located on one side of the preheating mechanism 6 and is used to pressurize the preheated initial fiber metal layer so that the multilayer fiber cloth and the metal strip are tightly bonded together. The heating and pressurizing shaping mechanism 8 is disposed on one side of the pressurizing mechanism 7 and is used to heat and pressurize the initial fiber metal layer after pressurization. The frame 12 is fixedly connected to the base plate 1; The cooling mechanism 9 is fixedly connected to the frame 12 and is located on one side of the heating and pressurizing shaping mechanism 8, and is used to cool the initial fiber metal layer after heating and pressurizing shaping; The transmission mechanism 10 is mounted on the frame 12 and disposed on one side of the cooling mechanism 9. The cutting mechanism 11 is mounted on the frame 12 and disposed on one side of the transmission mechanism 10. The transmission mechanism 10 is used to transmit the cooled initial fiber metal layer to the cutting mechanism 11. The cutting mechanism 11 is used to cut the cooled initial fiber metal layer to obtain a shaped fiber metal laminate.

[0028] In practical use, the multi-layered fiber cloth is suspended on the first yarn frame 2, and the separator membrane, absorbent felt, and metal strip are suspended on the second yarn frame 4. In operation, the multi-layered fiber cloth is first uniformly impregnated with resin in the impregnation tank 3, and then excess resin is absorbed by the separator membrane and absorbent felt, achieving weight reduction. It should be noted that if prepreg is used, the prepreg-impregnated multi-layered fiber cloth can be hung on the second yarn frame 4, and the impregnation step in the impregnation tank 3 can be omitted. Next, a small portion of the multi-layered fiber cloth and metal strip are pre-compressed by the pre-compression mechanism 5 to form an initial fiber-metal layer, reducing relative movement between the multi-layered fiber cloth and the metal strip. Then, the initial fiber-metal layer is preheated by the preheating mechanism 6, which reduces resin viscosity, allowing excess resin to flow out, and improves subsequent processing efficiency. Finally, the preheated initial fiber-metal layer is drawn to the pressurizing mechanism 7 for pressurization, ensuring a tight bond between the multi-layered fiber cloth and the metal strip and eliminating interlayer air bubbles. Next, the pressurized initial fiber-metal layer enters the heating and pressurizing shaping mechanism 8, where it undergoes heating and pressurizing to ensure product quality. Then, the heated and pressurized initial fiber-metal layer passes through the cooling mechanism 9, where its temperature is reduced by water cooling. It is then pulled by the conveying mechanism 10 to the cutting mechanism 11, where the cooled initial fiber-metal layer is cut. After cutting, the formed fiber-metal laminate is placed on a stacking rack. The fiber cloth is preferably carbon fiber cloth.

[0029] like Figure 2As shown, the pre-pressing mechanism 5 includes a pre-pressing support frame 5-1, which is detachably connected to the base plate 1 and located on one side of the second yarn frame 4. Pre-pressing hydraulic cylinders 5-2 are fixedly connected to both sides of the top of the pre-pressing support frame 5-1. A pre-pressing slide plate 5-3 is fixedly connected to the telescopic end of the pre-pressing hydraulic cylinder 5-2. A first pre-pressing rotating shaft 5-4 is rotatably connected to the middle of the pre-pressing slide plate 5-3. A first pre-pressing roller 5-5 is fixedly connected to the first pre-pressing rotating shaft 5-4. Pre-pressing fixing plates 5-6 are fixedly connected to both sides of the middle of the pre-pressing support frame 5-1. A second pre-pressing rotating shaft 5-7 is rotatably connected to the middle of the pre-pressing fixing plate 5-6. A second pre-pressing roller 5-8 is fixedly connected to the second pre-pressing rotating shaft 5-7.

[0030] The first pre-compression rotating shaft 5-4 and the second pre-compression rotating shaft 5-7 can be driven by the first pre-compression motor and the second pre-compression motor, respectively. That is, the output shaft ends of the first pre-compression motor and the second pre-compression motor are fixedly connected to the first pre-compression rotating shaft 5-4 and the second pre-compression rotating shaft 5-7, respectively, so as to drive the first pre-compression rotating shaft 5-4 and the second pre-compression rotating shaft 5-7 to rotate.

[0031] In practical use, after the multi-layer fiber cloth and metal strip enter the pre-pressing mechanism 5, the pre-pressing hydraulic cylinder 5-2 controls the pre-pressing slide plate 5-3 to move downward, causing the first pre-pressing roller 5-5 and the second pre-pressing roller 5-8 to clamp the multi-layer fiber cloth and metal strip to achieve their pre-pressing treatment. During pre-pressing, the first pre-pressing rotating shaft 5-4 and the second pre-pressing rotating shaft 5-7 can be driven to rotate, thereby improving the pre-pressing effect and reducing the relative movement between the multi-layer fiber cloth and the metal strip.

[0032] like Figure 3As shown, the preheating mechanism 6 includes a preheating support frame 6-1 and a preheating stepped motor base 6-6. The preheating support frame 6-1 and the preheating stepped motor base 6-6 are detachably connected to the base plate 1 and located on one side of the pre-pressing mechanism 5. Preheating hydraulic cylinders 6-2 are fixedly connected to both sides of the top of the preheating support frame 6-1. A preheating slide plate 6-3 is fixedly connected to the telescopic end of the preheating hydraulic cylinder 6-2. Two parallel first preheating rotating shafts 6-4 are rotatably connected to the middle of the preheating slide plate 6-3. A first preheating roller 6-5 is fixedly connected to the first preheating rotating shaft 6-4. A first preheating motor 6-7 is fixedly connected to the top of the preheating stepped motor base 6-6. A first preheating drive sprocket 6-8 is fixedly connected to the end of the output shaft of the first preheating motor 6-7. A first preheating driven sprocket 6-10 is fixedly connected to one of the first preheating rotating shafts 6-4. -8 is connected to the first preheating driven sprocket 6-10 via the first preheating chain 6-9. A second preheating driving sprocket 6-11 is fixedly connected to one of the first preheating rotating shafts 6-4, and a second preheating driven sprocket 6-12 is fixedly connected to the other first preheating rotating shaft 6-4. The second preheating driving sprocket 6-11 and the second preheating driven sprocket 6-12 are connected via the second preheating chain 6-13. Preheating fixing plates 6-14 are fixedly connected to both sides of the middle of the preheating support frame 6-1. Two parallel second preheating rotating shafts 6-15 are rotatably connected to the middle of the preheating fixing plate 6-14. A second preheating roller 6-16 is fixedly connected to the second preheating rotating shaft 6-15. A second preheating motor 6-17 is fixedly connected to the upper part of the preheating stepped motor base 6-6. The second preheating motor 6-17 and the two second preheating rotating shafts 6-15 are driven by sprockets and chains.

[0033] The principle by which the second preheating motor 6-17 drives the two second preheating shafts 6-15 to rotate synchronously via sprockets and chains is the same as the principle by which the first preheating motor 6-7 drives the two first preheating shafts 6-4 to rotate synchronously via sprockets and chains. The specific structure of the transmission between the second preheating motor 6-17 and the second preheating shafts 6-15 via sprockets and chains will not be described in detail here.

[0034] In this embodiment of the invention, the first preheating roller 6-5 and the second preheating roller 6-16 can be electromagnetic heating rollers. The electromagnetic heating rollers use multi-segment high-frequency coils to rapidly heat their surfaces non-contactly, achieving a heating rate of 30℃ / min and controlling the roller surface temperature within a precision range of ±1℃. Preferably, the preheating mechanism 6 further includes several temperature sensors, which are fixedly connected inside the first preheating roller 6-5 and the second preheating roller 6-16. By real-time monitoring of the temperatures of the first preheating roller 6-5 and the second preheating roller 6-16 using the temperature sensors, online temperature control of the first preheating roller 6-5 and the second preheating roller 6-16 is achieved, enabling precise control of the preheating temperature and preventing uneven temperature distribution during the rolling process, which could lead to non-uniform deformation of the sheet material.

[0035] In practical use, after the initial fiber metal layer enters the preheating mechanism 6, the preheating hydraulic cylinder 6-2 controls the preheating slide plate 6-3 to move downwards, causing the first preheating roller 6-5 and the second preheating roller 6-16 to clamp the initial fiber metal layer for preheating. During the preheating process, the first preheating motor 6-7 drives the first preheating drive sprocket 6-8 to rotate through its output shaft. The first preheating drive sprocket 6-8 drives the first preheating driven sprocket 6-10 to rotate through the first preheating chain 6-9, which in turn drives one of the first preheating shafts 6-4 to rotate. Simultaneously, when one of the first preheating shafts 6-4 rotates, it drives the second preheating driven sprocket 6-12 and the other first preheating shaft 6-4 to rotate through the second preheating drive sprocket 6-11 and the second preheating chain 6-13, thereby achieving synchronous rotation of the two first preheating rollers 6-5.

[0036] like Figure 4As shown, the pressurizing mechanism 7 includes a pressurizing support frame 7-1 and a pressurizing stepped motor base 7-6. The pressurizing support frame 7-1 and the pressurizing stepped motor base 7-6 are detachably connected to the base plate 1 and located on one side of the preheating mechanism 6. Pressurizing hydraulic cylinders 7-2 are fixedly connected to both sides of the top of the pressurizing support frame 7-1. Pressurizing slide plates 7-3 are fixedly connected to the telescopic ends of the pressurizing hydraulic cylinders 7-2. Several parallel first pressurizing shafts 7-4 are rotatably connected to the middle of the pressurizing slide plates 7-3. First pressurizing rollers 7-5 are fixedly connected to the first pressurizing shafts 7-4. A first pressurizing motor 7-7 is fixedly connected to the top of the pressurizing stepped motor base 7-6. A first pressurizing drive sprocket 7-8 is fixedly connected to the end of the output shaft of the first pressurizing motor 7-7. One of the first pressurizing shafts 7-4... A first pressure driven sprocket 7-10 is fixedly connected to the upper part. A first pressure driving sprocket 7-8 is connected to the first pressure driven sprocket 7-10 through a first pressure chain 7-9. Every two first pressure shafts 7-4 are driven by sprockets and chains. Pressure fixing plates 7-11 are fixedly connected to both sides of the middle part of the pressure support frame 7-1. Several parallel second pressure shafts 7-12 are rotatably connected to the middle of the pressure fixing plates 7-11. Second pressure rollers 7-14 are fixedly connected to the second pressure shafts 7-12. A second pressure motor 7-13 is fixedly connected to the upper part of the pressure stepped motor base 7-6. The second pressure motor 7-13 is driven by one of the second pressure shafts 7-12 through sprockets and chains. Every two second pressure shafts 7-12 are driven by sprockets and chains.

[0037] The principle of transmission between two first pressurizing shafts 7-4 via sprockets and chains is the same as the principle of synchronous rotation between two first preheating shafts 6-4. The same applies to the transmission between two second pressurizing shafts 7-12 via sprockets and chains.

[0038] Preferably, among the plurality of first pressure rollers 7-5, flexible pressure rollers and rigid pressure rollers are arranged alternately, and among the plurality of second pressure rollers 7-14, flexible pressure rollers and rigid pressure rollers are arranged alternately.

[0039] Preferably, the pressurizing mechanism 7 further includes a pressure sensor, which is fixedly connected to the pressurizing hydraulic cylinder 7-2. The pressure sensor is used to detect the pressurizing pressure of the first pressurizing roller 7-5 in real time, so as to achieve precise control of the pressurizing pressure.

[0040] In practical use, after the preheated initial fiber-metal layer enters the pressurizing mechanism 7, the pressurizing hydraulic cylinder 7-2 controls the pressurizing slide plate 7-3 to move downward, so that the first pressurizing roller 7-5 and the second pressurizing roller 7-14 clamp the preheated initial fiber-metal layer for pressurization. During the pressurization process, the first pressurizing motor 7-7 drives several first pressurizing rollers 7-5 to rotate synchronously, and the second pressurizing motor 7-13 drives several second pressurizing rollers 7-14 to rotate synchronously.

[0041] To achieve maximum accumulated clamping force, the pressure rollers of the pressure mechanism 7 are closely arranged. Preferably, the pressure mechanism 7 consists of six first pressure rollers 7-5 and six second pressure rollers 7-14. Of the six first pressure rollers 7-5 or six second pressure rollers 7-14, three are flexible pressure rollers and three are rigid pressure rollers, arranged indirectly. The elastic deformation of the flexible pressure rollers in the width direction can automatically adjust according to the transverse thickness distribution of the sheet material, producing a "compensation for local thickness differences" effect, and can also buffer and absorb shock, making the contact stress distribution more uniform and reducing surface wear of the rigid pressure rollers. The rigid pressure rollers, on the other hand, can maintain the overall geometry of the sheet material and provide a reference flatness. This arrangement improves the quality of the sheet material and reduces energy consumption.

[0042] The heating and pressurizing shaping mechanism 8 includes a heating and pressurizing support frame and a heating and pressurizing stepped motor base. The heating and pressurizing support frame and the heating and pressurizing stepped motor base are detachably connected to the base plate 1 and located on one side of the pressurizing mechanism 7. Heating and pressurizing hydraulic cylinders are fixedly connected to both sides of the top of the heating and pressurizing support frame. Heating and pressurizing slide plates are fixedly connected to the telescopic ends of the heating and pressurizing hydraulic cylinders. Several parallel first heating and pressurizing rotating shafts are rotatably connected to the middle of the heating and pressurizing slide plates. First heating and pressurizing rollers are fixedly connected to the first heating and pressurizing rotating shafts. A first heating and pressurizing motor is fixedly connected to the top of the heating and pressurizing stepped motor base. A first heating and pressurizing drive sprocket is fixedly connected to the end of the output shaft of the first heating and pressurizing motor. A first heating and pressurizing driven sprocket is fixedly connected to the heating and pressurizing rotating shaft. The first heating and pressurizing driving sprocket and the first heating and pressurizing driven sprocket are connected through a first heating and pressurizing chain. Every two first heating and pressurizing rotating shafts are driven by a sprocket and a chain. Heating and pressurizing fixing plates are fixedly connected to both sides of the middle of the heating and pressurizing support frame. Several parallel second heating and pressurizing rotating shafts are rotatably connected to the middle of the heating and pressurizing fixing plates. Second heating and pressurizing rollers are fixedly connected to the second heating and pressurizing rotating shafts. A second heating and pressurizing motor is fixedly connected to the upper part of the heating and pressurizing stepped motor base. The second heating and pressurizing motor is driven by a sprocket and a chain to one of the second heating and pressurizing rotating shafts. Every two second heating and pressurizing rotating shafts are driven by a sprocket and a chain.

[0043] Preferably, the heating and pressurizing shaping mechanism 8 further includes several temperature sensors, which are fixedly connected inside the first and second heating and pressurizing rollers. By real-time monitoring of the temperatures of the first and second heating and pressurizing rollers using these temperature sensors, online temperature control of the rollers is achieved, thereby enabling precise control of the heating and pressurizing temperature. This further avoids uneven temperature distribution during the rolling process, preventing non-uniform deformation of the sheet material. The heating and pressurizing shaping mechanism 8 also includes a pressure sensor, which is fixedly connected to the heating and pressurizing hydraulic cylinder. The pressure sensor is used to monitor the pressurizing pressure of the first heating and pressurizing roller in real time, enabling precise control of the heating and pressurizing pressure.

[0044] It should be noted that in the heating and pressurizing shaping mechanism 8, the diameters of the first and second heating and pressurizing rollers are slightly smaller than those of the first pressurizing roller 7-5 and the second pressurizing roller 7-14 in the pressurizing mechanism 7. The thickness of the fiber-metal laminate for different requirements can be achieved by precisely adjusting the gap between the first and second heating and pressurizing rollers within the range of 0.2mm-4.0mm. Simultaneously, the heating and pressurizing hydraulic cylinder in the heating and pressurizing shaping mechanism 8 can automatically adjust the gap based on real-time monitoring of rolling force, thickness, and other parameters to ensure forming accuracy. The uniform rotation of the first and second heating and pressurizing rollers is transmitted smoothly via sprockets and chains, ensuring strict synchronization and phase consistency of speeds among multiple rollers, providing a reliable guarantee for subsequent high-precision rolling. Several first and second heating and pressurizing rollers in the heating and pressurizing shaping mechanism 8 are rigidly connected as a single unit. When the heating and pressurizing hydraulic cylinder pushes them up and down to adjust the gap, the pressure is evenly transmitted to each roller, ensuring consistent rolling force on the material and improving processing accuracy and finished product qualification rate.

[0045] like Figure 1 and Figure 5 As shown, the cooling mechanism 9 includes two sets of stainless steel condensing plates arranged vertically, both sets of which are fixedly connected to the frame 12. Preferably, S-shaped microchannels are milled inside the stainless steel condensing plates, and the cooling water flows at a rate of 3 m·s. -1 The turbulent flow swept over the middle partition at high speed, instantly carrying away the heat from the surface of the board, allowing the surface of the board to cool down rapidly in a short time and complete the curing. It can also effectively prevent the board from deforming at high temperature and sticking to the roller, thus shortening the production time.

[0046] like Figure 1 and Figure 6 As shown, the transmission mechanism 10 includes two parallel guide rails 10-1, which are fixedly connected to the frame 12. An electric gripper 10-2 is slidably connected to the guide rails 10-1.

[0047] Specifically, the electric gripper 10-2 is connected to the slide on the guide rail 10-1 by bolts. The stroke of the electric gripper 10-2 is 0-6mm to accommodate plates of different thicknesses for accurate gripping and traction.

[0048] like Figure 1 and Figure 7 As shown, the cutting mechanism 11 includes a timing belt module 11-1, which is fixedly connected to the frame 12. A ball screw pair 11-2 is fixedly connected to the slider of the timing belt module 11-1, and a cutting saw 11-3 is mounted on the slider of the ball screw pair 11-2.

[0049] Specifically, the cutting saw 11-3 is connected to the threaded hole on the slider of the ball screw assembly 11-2 via bolts, and the bottom surface is secured with screw glue to prevent loosening. The ball screw assembly 11-2 is mounted on the synchronous belt module 11-1, which is driven by a stepper motor and can move synchronously with the sheet metal within the range of 0-2000 mm / s, with a position feedback accuracy of ±0.02 mm, ensuring no relative displacement throughout the sawing process. Simultaneously, the cutting saw 11-3, driven by the ball screw assembly 11-2, moves laterally on the synchronous belt module 11-1 to perform the cutting. This superposition of dual movements eliminates the length error caused by traditional stop-cutting methods and avoids sheet metal vibration and burrs, better meeting the online continuous processing requirements of the aerospace and automotive industries for high-quality, net-size finished products.

[0050] In summary, the high-performance fiber-reinforced metal laminate rapid prototyping device provided in this embodiment of the invention has the following beneficial effects: 1. This invention utilizes the rotation of rollers to achieve plate rolling, while simultaneously employing an electric gripper 10-2 for coordinated traction. This improvement significantly reduces material stress during the traction process, fundamentally preventing crack formation and effectively ensuring the stability of finished product quality. It solves the problem that the traditional direct traction method requires overcoming the enormous resistance of the entire deformation zone, with tensile stress often reaching 60%-80% of the material's yield strength. This not only easily leads to central cracks or edge cracking but also causes uneven stress distribution among different material layers.

[0051] 2. This invention adopts a modular design concept, with each functional unit configured independently. This flexible layout can be adjusted according to product process requirements. When certain processes are not required, the corresponding modules can be directly removed, which enhances the adaptability of the device to different products and effectively improves processing efficiency. For example, when using prepreg in the coating module, the first yarn frame 2 and the impregnation tank 3 can be removed, leaving only the second yarn frame 4 to complete the coating of the prepreg and the metal strip, thus achieving a simplified and optimized process path.

[0052] 3. This device adopts a double-yarn frame structure design: the first yarn frame 2 is used to hang multiple layers of fiber cloth, while the second yarn frame is equipped with a separator membrane, absorbent felt, and metal strip. The core function of the separator membrane is to create a barrier, preventing the absorbent felt from over-absorbing the resin in the workpiece and causing an imbalance in resin content, while also preventing fiber migration and contamination of the workpiece surface, thus ensuring the smoothness of the product. The absorbent felt has multiple functions; it absorbs exuded resin and removes air bubbles through capillary action, and also acts as a buffer layer during rolling to ensure that pressure is evenly transmitted to the workpiece surface.

[0053] 4. The present invention is equipped with a pre-compression mechanism 5, which pre-compacts a small portion of each layer of material before rolling. This process can effectively suppress interlayer slippage during rolling, ensure that the layup sequence is strictly consistent with the design, eliminate unevenness at the edges of the metal layer and the carbon fiber layer, significantly reduce subsequent trimming waste, and improve material utilization.

[0054] 5. A preheating mechanism 6 is set before the pressurizing mechanism 7. On the one hand, it can reduce the resin viscosity and improve the fluidity. On the other hand, it can also pre-compensate the difference in thermal expansion between the metal strip and the multi-layer fiber cloth during the preheating stage, reduce the residual stress at the interface during cooling, and at the same time, allow the micro-roughness of the metal surface to be filled by the resin in the hot state, thereby improving the material strength.

[0055] 6. In the pressurizing mechanism 7, a combination of flexible and rigid pressurizing rollers is used. The rigid pressurizing rollers provide the main rolling force, ensuring dimensional accuracy and surface roughness; the flexible pressurizing rollers achieve pressure compensation through adaptive bending, avoiding local overload. This roller arrangement disperses peak pressure, and because the flexible pressurizing rollers bear part of the impact load, the lifespan of the rigid pressurizing rollers will be extended by 30-40%.

[0056] 7. In the heating and pressurizing shaping mechanism 8, replaceable rollers are used to adapt to the processing requirements of different products. For example, trapezoidal rollers or other irregularly shaped rollers can be used for processing and rolling. By replacing the first and second heating and pressurizing rollers with smooth surfaces to roller systems with specific shapes, plates with special structures can be directly formed. For example... Figure 8 As shown, it is a specific shape of the first heating and pressure roller or the second heating and pressure roller.

[0057] 8. By precisely controlling the temperature of each process using data from temperature sensors during the rolling process, a uniform temperature distribution in the sheet material is ensured, effectively preventing non-uniform deformation caused by temperature gradients and guaranteeing the stability and consistency of product quality. Compared to hot pressing devices, this device offers significantly improved efficiency, better forming efficiency, and faster forming speed.

[0058] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A high-performance fiber-metal laminate rapid prototyping device, characterized in that, Includes a base plate (1), and above the base plate (1) are arranged in sequence at intervals a first yarn frame (2), a glue-impregnating tank (3), a second yarn frame (4), a pre-pressing mechanism (5), a preheating mechanism (6), a pressurizing mechanism (7), a heating and pressurizing shaping mechanism (8), a cooling mechanism (9), a transmission mechanism (10), a cutting mechanism (11), and a frame (12); The first yarn frame (2) is detachably connected to the base plate (1) and is used to suspend multi-layer fiber cloth; The impregnation tank (3) is located on one side of the first yarn frame (2) and is detachably connected to the bottom plate (1) for pre-storing resin and uniformly impregnating the multi-layer fiber cloth with resin. The second yarn rack (4) is located on one side of the impregnation tank (3) and is detachably connected to the bottom plate (1) for suspending the separator film, absorbent felt and metal strip; The pre-pressing mechanism (5) is located on one side of the second yarn frame (4) and is used to pre-press the multi-layer fiber cloth and metal strip to obtain the initial fiber metal layer. The preheating mechanism (6) is located on one side of the pre-compression mechanism (5) and is used to preheat the initial fiber metal layer; The pressurizing mechanism (7) is located on one side of the preheating mechanism (6) and is used to pressurize the preheated initial fiber metal layer so that the multilayer fiber cloth and the metal strip are tightly bonded together. The heating and pressurizing shaping mechanism (8) is located on one side of the pressurizing mechanism (7) and is used to heat and pressurize the initial fiber metal layer after pressurization. The frame (12) is fixedly connected to the base plate (1); The cooling mechanism (9) is fixedly connected to the frame (12) and is located on one side of the heating and pressurizing shaping mechanism (8) for cooling the initial fiber metal layer after heating and pressurizing shaping; The transmission mechanism (10) is mounted on the frame (12) and located on one side of the cooling mechanism (9). The cutting mechanism (11) is mounted on the frame (12) and located on one side of the transmission mechanism (10). The transmission mechanism (10) is used to transmit the cooled initial fiber metal layer to the cutting mechanism (11). The cutting mechanism (11) is used to cut the cooled initial fiber metal layer to obtain a shaped fiber metal laminate. The pre-pressing mechanism (5) includes a pre-pressing support frame (5-1), which is detachably connected to the base plate (1) and located on one side of the second yarn frame (4). Pre-pressing hydraulic cylinders (5-2) are fixedly connected to both sides of the top of the pre-pressing support frame (5-1). A pre-pressing slide plate (5-3) is fixedly connected to the telescopic end of the pre-pressing hydraulic cylinder (5-2). A first pre-pressing rotating shaft (5-4) is rotatably connected to the middle of the pre-pressing slide plate (5-3). A first pre-pressing roller (5-5) is fixedly connected to the first pre-pressing rotating shaft (5-4). A pre-pressing fixing plate (5-6) is fixedly connected to both sides of the middle of the pre-pressing support frame (5-1). A second pre-pressing rotating shaft (5-7) is rotatably connected to the middle of the pre-pressing fixing plate (5-6). A second pre-pressing roller (5-8) is fixedly connected to the second pre-pressing rotating shaft (5-7).

2. The high-performance fiber-metal laminate rapid prototyping device according to claim 1, characterized in that, The preheating mechanism (6) includes a preheating support frame (6-1) and a preheating stepped motor base (6-6). The preheating support frame (6-1) and the preheating stepped motor base (6-6) are detachably connected to the base plate (1) and located on one side of the pre-pressing mechanism (5). Preheating hydraulic cylinders (6-2) are fixedly connected to both sides of the top of the preheating support frame (6-1). A preheating slide plate (6-3) is fixedly connected to the telescopic end of the preheating hydraulic cylinder (6-2). A preheating slide plate (6-3) is rotatably connected to the middle of the preheating slide plate (6-3). Two parallel first preheating shafts (6-4) are provided. A first preheating roller (6-5) is fixedly connected to the first preheating shaft (6-4). A first preheating motor (6-7) is fixedly connected to the top of the preheating stepped motor base (6-6). A first preheating drive sprocket (6-8) is fixedly connected to the end of the output shaft of the first preheating motor (6-7). A first preheating driven sprocket (6-10) is fixedly connected to one of the first preheating shafts (6-4). -8) The first preheating driven sprocket (6-10) is connected to the first preheating chain (6-9). A second preheating driving sprocket (6-11) is fixedly connected to one of the first preheating shafts (6-4), and a second preheating driven sprocket (6-12) is fixedly connected to the other first preheating shaft (6-4). The second preheating driving sprocket (6-11) and the second preheating driven sprocket (6-12) are connected to each other via a second preheating chain (6-13). The preheating support frame (6-1... A preheating fixing plate (6-14) is fixedly connected to both sides of the middle part. Two parallel second preheating rotating shafts (6-15) are rotatably connected to the middle of the preheating fixing plate (6-14). A second preheating roller (6-16) is fixedly connected to the second preheating rotating shaft (6-15). A second preheating motor (6-17) is fixedly connected to the upper part of the preheating stepped motor base (6-6). The second preheating motor (6-17) and the two second preheating rotating shafts (6-15) are driven by sprockets and chains.

3. The high-performance fiber-metal laminate rapid prototyping device according to claim 1, characterized in that, The pressurizing mechanism (7) includes a pressurizing support frame (7-1) and a pressurizing stepped motor base (7-6). The pressurizing support frame (7-1) and the pressurizing stepped motor base (7-6) are detachably connected to the base plate (1) and located on one side of the preheating mechanism (6). Pressurizing hydraulic cylinders (7-2) are fixedly connected to both sides of the top of the pressurizing support frame (7-1). Pressurizing slide plate (7-3) is fixedly connected to the telescopic end of the pressurizing hydraulic cylinder (7-2). Several parallel first pressurizing shafts (7-4) are rotatably connected to the middle of the pressurizing slide plate (7-3). A first pressurizing roller (7-5) is fixedly connected to the first pressurizing shaft (7-4). A first pressurizing motor (7-7) is fixedly connected to the top of the pressurizing stepped motor base (7-6). A first pressurizing drive sprocket (7-8) is fixedly connected to the end of the output shaft of the first pressurizing motor (7-7). One of the first pressurizing shafts (7-7-8) is connected to the first pressurizing drive sprocket (7-8). 4) A first pressure driven sprocket (7-10) is fixedly connected to the upper part. The first pressure driving sprocket (7-8) and the first pressure driven sprocket (7-10) are connected through the first pressure chain (7-9). Every two first pressure shafts (7-4) are driven by sprockets and chains. Pressure fixing plates (7-11) are fixedly connected to both sides of the middle part of the pressure support frame (7-1). Several parallel second pressure shafts (7-12) are rotatably connected to the middle of the pressure fixing plate (7-11). A second pressure roller (7-14) is fixedly connected to the second pressure shaft (7-12). A second pressure motor (7-13) is fixedly connected to the upper part of the pressure stepped motor base (7-6). The second pressure motor (7-13) is driven by sprockets and chains to one of the second pressure shafts (7-12). Every two second pressure shafts (7-12) are driven by sprockets and chains.

4. The high-performance fiber-metal laminate rapid prototyping device according to claim 3, characterized in that, In a plurality of first pressure rollers (7-5), flexible pressure rollers and rigid pressure rollers are arranged alternately, and in a plurality of second pressure rollers (7-14), flexible pressure rollers and rigid pressure rollers are arranged alternately.

5. The high-performance fiber-metal laminate rapid prototyping device according to claim 1, characterized in that, The cooling mechanism (9) includes two sets of stainless steel condensing plates distributed vertically, and both sets of stainless steel condensing plates are fixedly connected to the frame (12).

6. The high-performance fiber-metal laminate rapid prototyping device according to claim 1, characterized in that, The transmission mechanism (10) includes two parallel guide rails (10-1), which are fixedly connected to the frame (12), and an electric gripper (10-2) is slidably connected on the guide rails (10-1).

7. The high-performance fiber-metal laminate rapid prototyping device according to claim 1, characterized in that, The cutting mechanism (11) includes a timing belt module (11-1), which is fixedly connected to the frame (12). A ball screw pair (11-2) is fixedly connected to the slider of the timing belt module (11-1), and a cutting saw (11-3) is installed on the slider of the ball screw pair (11-2).

8. The high-performance fiber-metal laminate rapid prototyping device according to claim 3, characterized in that, The pressurizing mechanism (7) also includes a pressure sensor, which is fixedly connected to the pressurizing hydraulic cylinder (7-2).

9. The high-performance fiber-metal laminate rapid prototyping device according to claim 2, characterized in that, The preheating mechanism (6) also includes several temperature sensors, which are fixedly connected to the first preheating roller (6-5) and the second preheating roller (6-16) respectively.

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