A high-efficiency preforming process and preforming system for composite materials

Abstract

This invention discloses a high-efficiency preforming process for composite materials, comprising the following steps: placing prepreg sequentially on several platforms; placing preforming molds located at the origin on a conveyor belt at intervals according to the distance between the platforms; the conveyor belt drives the molds to move, passing through the platforms sequentially according to the layup order; the conveyor belt pauses when the preforming mold passes each platform, the preforming mold rises and performs point-to-point positioning and layup with the prepreg on the platform, until the last platform, to obtain a pre-finished product; the pre-finished product is demolded, and the demolded preforming mold returns to the origin and re-enters the conveyor belt. It also includes a high-efficiency preforming system for composite materials. This invention enables layup of several preforming molds on an assembly line, reducing positioning time and improving layup efficiency through rapid point-to-point positioning between the preforming molds and the prepreg.

Description

Technical Field

[0001] This invention relates to the field of preforming technology, specifically to a high-efficiency preforming process and system for composite materials. Background Technology

[0002] Before molding prepreg products, prepreg preparation work such as cutting and lay-up needs to be completed. The current process for preparing prepreg products is as follows: First, the prepreg is cut into the required size and shape in the cutting workshop. Then, the processed prepreg is transported to the lay-up workshop. Finally, lay-up is performed in the preforming mold, and the prepreg is demolded to produce the prepreg product.

[0003] As multiple layers of material are poured out, multiple lay-up operations are required on the preforming mold, and the lay-up sequence cannot be changed. To complete this operation, workers need to lay the prepreg layer by layer on the preforming mold, which greatly increases the time required to prepare the preform.

[0004] Secondly, to improve layup efficiency, some instruments exist that facilitate positioning the mold and prepreg. For example, in a highly efficient prepreg layup method and preforming device (publication number: CN115674724A), the positioning between the prepreg and the mold is achieved by aligning the moving slots. However, after each layup, prepreg needs to be added to the device, and the positioning between the prepreg and the mold needs to be re-performed, consuming a significant amount of time. Furthermore, production involves considerable equipment pressure, requiring multiple devices to operate simultaneously, consuming substantial resources, resulting in low manufacturing efficiency and high manufacturing costs. Summary of the Invention

[0005] The purpose of this invention is to provide a high-efficiency preforming process and system for composite materials to solve the technical problem that prepreg cannot be automatically fed in the prior art.

[0006] To solve the above-mentioned technical problems, the present invention specifically provides the following technical solution:

[0007] This invention provides a high-efficiency preforming process for composite materials, comprising the following steps:

[0008] The prepreg is placed sequentially on several platforms, each platform having several identical prepreg sheets pre-set on it;

[0009] The pre-forming mold located at the origin is placed on the conveyor belt at intervals according to the distance between the platforms. The conveyor belt drives the forming mold to move and passes through the platforms in sequence according to the layering order during the movement.

[0010] The conveyor belt pauses as the preforming mold passes each of the loading platforms, and the preforming mold rises and performs point-to-point positioning and layering with the prepreg on the loading platform until the last loading platform is reached to obtain the pre-finished product.

[0011] The pre-finished product is demolded, and the demolded pre-forming mold returns to the origin and re-enters the conveyor belt.

[0012] The present invention also provides a high-efficiency preforming system for composite materials, comprising:

[0013] A conveying mechanism is used to transport a preformed mold from its head end to its tail end;

[0014] A first robotic arm is disposed at the beginning of the conveying mechanism and is used to place the preformed molds at equal intervals and continuously on the conveying mechanism;

[0015] A second robotic arm is located at the end of the conveying mechanism, and the second robotic arm demolds the pre-finished product.

[0016] A loading platform, several loading platforms are installed on the conveying mechanism and arranged sequentially between the first robot and the second robot. Each loading platform is pre-loaded with prepreg material corresponding to its layup sequence and can place a single layer of prepreg material above the conveying mechanism.

[0017] A traveling crane, positioned above the conveying mechanism, is used to transport the demolded preform mold back to the first robotic arm;

[0018] The first robotic arm places the preformed mold on the conveying mechanism at intervals and continuously. As the preformed mold passes the platform, it is automatically layered from the inside to the outside. When the preformed mold moves to the end of the conveying mechanism, the layering is completed and it is automatically demolded under the action of the second robotic arm. After demolding, the preformed mold returns to the first robotic arm under the drive of the trolley to perform the operation cycle.

[0019] In a preferred embodiment of the present invention, the number of the carrying platforms on the conveying mechanism is equal to the number of layers required for the preforming mold, and the carrying platforms are capable of simultaneously performing single-layer layering operations on the preforming molds mounted on the carrying platforms.

[0020] As a preferred embodiment of the present invention, the conveying mechanism includes a conveyor belt and baffles fixedly disposed on both sides of the conveyor belt. The platform is mounted on the baffles and suspended above the conveyor belt. The conveyor belt can drive the preformed mold to move from the first robot arm to the second robot arm.

[0021] The conveyor belt is provided with several fixed supports, which are used to fix the preformed mold on the conveyor belt. A lifting column is provided between the fixed support and the conveyor belt, and the lifting column can drive the fixed support to move up and down above the conveyor belt.

[0022] As a preferred embodiment of the present invention, the fixed support includes a first elastic plate and a second elastic plate installed on the top of the lifting column, and the pre-forming mold can be clamped and disposed between the first elastic plate and the second elastic plate under the drive of the first robot arm, and the pre-forming mold is moved forward by the conveyor belt in the clamped state.

[0023] In a preferred embodiment of the present invention, both the first elastic plate and the second elastic plate are provided with support plates. When the preforming mold is clamped between the first elastic plate and the second elastic plate, the support plates support the preforming mold, and a gap is provided between the two support plates.

[0024] As a preferred embodiment of the present invention, the platform includes a storage module and a platform connected to the storage module via a drive device. Multiple identical prepregs are vertically arranged in the storage module. The platform reciprocates on the side of the storage module and above the conveyor belt of the drive device. During the movement, the platform moves one layer of prepreg in the storage module to above the conveyor belt.

[0025] The platform is provided with a window for the fixed support and the preformed mold disposed on the fixed support to pass through. When a layer of prepreg is disposed on the platform, the preformed mold passes through the window and comes into contact with the prepreg.

[0026] As a preferred embodiment of the present invention, an adhesive strip is provided on one side of the platform, and a heating wire is pre-installed inside the adhesive strip, which can heat the adhesive strip; when the platform is in a horizontal state, the adhesive strip is positioned away from the storage module.

[0027] As a preferred embodiment of the present invention, the storage module includes a housing mounted on the side of the conveyor belt by an L-shaped fixing plate, the L-shaped fixing plate being disposed at the bottom of the conveyor belt, the housing being used to vertically place several layers of prepreg, and the housing being open at both ends;

[0028] The drive device is mounted on the L-shaped fixed plate and installed between the conveyor belt and the housing.

[0029] As a preferred embodiment of the present invention, the driving device includes an L-shaped track installed on the side of the housing and a telescopic pump body installed on the L-shaped fixed plate, wherein the L-shaped track is suspended on the conveyor belt;

[0030] Two sliders are provided on the L-shaped track. One side of the platform is rotatably connected to the sliders by a fastener. The platform is fixed on the L-shaped track by the sliders. The telescopic rod of the telescopic pump body meshes with the fastener through a gear rod. When the gear rod moves up and down, the fastener drives the platform to move on the L-shaped track.

[0031] Compared with the prior art, the present invention has the following advantages:

[0032] 1. This invention places prepregs of different numbers of layers in advance during the movement of the preforming mold and completes point-to-point positioning and layering during the movement. After the layering is completed, the material is demolded and enters the production cycle, which greatly simplifies the layering process. Moreover, in the production line, several molds can be used for layering at the same time, which improves the efficiency of layering and reduces time costs.

[0033] 2. This invention adopts a dual-line parallel approach, that is, a conveyor belt is used to move the mold and a platform is used to replace the prepreg. The movement of the mold and the replacement of the prepreg are set at the same time. While improving the layup efficiency, it reduces the prepreg replacement time in the process of multiple layups of a single mold. Moreover, the simple point-to-point rising structure realizes the layup production line process and reduces equipment requirements. Attached Figure Description

[0034] To more clearly illustrate the embodiments of the present invention or the technical solutions in 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 merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0035] Figure 1 A schematic flow diagram of the efficient preforming process for composite materials is provided for this invention;

[0036] Figure 2 A structural schematic diagram of a high-efficiency preforming system for composite materials is provided for this invention;

[0037] Figure 3 A side view of the high-efficiency preforming system for composite materials is provided for this invention.

[0038] Figure 4 For the present invention Figure 3 Schematic diagram of the structure of the central fixed bracket;

[0039] Figure 5 For the present invention Figure 3 A schematic diagram of the side structure of the middle stage.

[0040] The labels in the diagram represent the following:

[0041] 1-Conveying mechanism; 2-First robotic arm; 3-Second robotic arm; 4-Platform; 5-Roller; 6-Pattern; 7-Adhesive strip; 8-Heating wire;

[0042] 101-Conveyor belt; 102-Fixed support; 103-Baffle; 104-Lifting column;

[0043] 1021 - First elastic plate; 1022 - Second elastic plate;

[0044] 201 - Mold storage slot; 202 - Rotary motor; 203 - Clamping end;

[0045] 401 - Storage module; 402 - Drive unit; 403 - Platform; 404 - Window;

[0046] 4011 - Housing; 4012 - L-shaped fixing plate;

[0047] 4021-L-type track; 4022-telescopic pump body; 4023-slider; 4024-fixture; 4025-gear rod. Detailed Implementation

[0048] 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.

[0049] To solve the problem of prepreg replacement, one approach is to use existing assembly line manufacturing processes to divide multiple prepregs into multiple workstations and use a conveyor system to ensure that the prepreg mold and the prepreg correspond one-to-one. However, this method does not solve the problem of precise positioning between the prepreg and the prepreg mold, nor does it solve the problem of low time efficiency due to the large number of layups during the layup process.

[0050] To solve the above problems, such as Figure 1 As shown, the present invention provides a high-efficiency preforming process for composite materials, comprising the following steps:

[0051] In the cutting workshop, the prepreg is cut into the required shape, and the prepregs with different layers in the pre-finished products are placed together for differentiation;

[0052] The prepregs after cutting are placed sequentially from the cutting workshop onto several platforms by a crane. Each platform has several identical pieces of prepregs pre-set, and these prepregs are arranged neatly. The platforms are set from left to right according to the layup order, and the prepregs are taken directly from the platforms during layup.

[0053] Apply release agent to several pre-formed molds and place them at the position of the first robotic arm for later use;

[0054] After the prepreg is cut and transported, the first robotic arm places the preform molds at intervals in the conveyor belt of the conveying mechanism. The conveyor belt of the conveying mechanism drives the arranged preform molds to move in sequence, and passes through the platform in the order of layering during the movement.

[0055] The conveying mechanism pauses as the preforming mold passes each platform, and the preforming mold rises to perform point-to-point positioning and layering with the prepreg on the platform until the last platform is reached to produce the pre-finished product.

[0056] The pre-finished product is fixed on the second robotic arm for demolding. The demolded pre-formed mold returns to the first robotic arm and re-enters the conveyor belt of the conveying mechanism.

[0057] Depend on Figure 2 As shown in the simplified diagram, the conveyor belt of the conveyor mechanism 1 is equipped with four platforms 4. The first robot 2 and the second robot 3 are respectively set on both sides of the conveyor belt. The platform 4 that is set up near the first robot 2 is the first platform 4, and the platform 4 that is set up near the second robot 3 is the fourth platform 4. When the conveyor belt delivers the preform mold to the bottom of the first platform 4, the conveyor belt stops moving. The preform mold automatically rises and aligns with the prepreg on the first platform 4. During the alignment process, the preform mold is laid up. The preform mold descends, the conveyor belt moves again, and the above operation is performed every time it moves under the platform 4, until the last platform 4.

[0058] After the final layering of the preforming mold is completed, it becomes a pre-finished product. The second robot 3 takes the pre-finished product, which is about to enter the bottom of the conveyor belt, off the conveyor belt, demolds it, and reuses the preforming mold. The gantry crane 5 drives the preforming mold back to the position of the first robot 2, ready to enter the conveyor belt for layering.

[0059] It is worth noting that whenever a preformed mold moves to the first platform 4, the robotic arm A places a preformed mold on the conveyor belt of the conveying mechanism 1 to complete its uninterrupted production.

[0060] This invention first restricts the positioning of multilayer prepregs. By moving the preforming molds at intervals, multiple preforming molds can be precisely positioned simultaneously with the prepregs corresponding to the respective layers. During production, there is no need to actively stop the machine to replenish the prepregs, which improves production efficiency and reduces the difficulty of positioning. Furthermore, the several preforming molds on the production line are in different layup states, and the parallel operation of multiple lines greatly improves production efficiency.

[0061] Compared to conventional assembly line processes, the key point of the above method is to place the collected single-layer prepreg above the conveyor belt, so that the preforming mold and the single-layer prepreg make point-to-point positioning contact.

[0062] To solve the above problems, such as Figures 3 to 5 As shown, the present invention provides a preforming system for a high-efficiency preforming process of composite materials, comprising:

[0063] The conveying mechanism 1 is provided with a conveyor belt 101 and a fixed support 102 provided on the conveyor belt 101. The conveyor belt 101 is used to transport the preformed mold from the first end to the last end of the conveying mechanism 1, and the fixed support 102 is used to fix the preformed mold.

[0064] The first robotic arm 2, located at the beginning of the conveying mechanism 1, is used to place pre-formed molds at equal intervals and continuously onto the conveying mechanism 1. The first robotic arm 2 mainly consists of a mold receiving slot 201 and a clamping end 203 mounted on the mold receiving slot 201 via a rotary motor 202. Several pre-formed molds can be pre-set in the mold receiving slot 201. Driven by the rotary motor 202, the clamping end 203 intermittently transfers the pre-formed molds to the conveyor belt 101 of the conveying mechanism 1 and fixes the pre-formed molds on the fixed support 102. When the distance between the platforms 4 is fixed, the rotation frequency of the rotary motor is fixed.

[0065] The second robotic arm 3 is located at the end of the conveying mechanism 1. The second robotic arm 3 demolds the pre-finished product and simultaneously transports the demolded pre-formed mold to the overhead crane 5, which then transports the pre-formed mold back into the mold receiving slot 201. The structure of the second robotic arm 3 only needs to have the above-mentioned functions, and its functional descriptions are all achievable with existing technology, so they will not be described in detail here.

[0066] Platform 4, several platforms 4 are installed on the conveying mechanism 1 and are arranged sequentially between the first robot 2 and the second robot 3. Each platform 4 is pre-loaded with prepreg material corresponding to its layup sequence and can place a single layer of prepreg material above the conveying mechanism 1.

[0067] The overhead crane 5, positioned above the conveying mechanism 1, is used to transport the demolded preformed mold back to the mold storage slot 201 of the first robotic arm 2. The structure of the overhead crane 5 is existing technology.

[0068] The distance between adjacent platforms 4 is the same as the distance between adjacent fixed trays 102. One of the fixed trays 102 is equipped with a linear signal transmitter, and all platforms 4 are equipped with a receiving device corresponding to the linear signal transmitter. When the signal transmitted by the linear signal transmitter is received by any receiving device, the conveyor belt 101 stops moving until one unit layup time, after which the conveyor belt 101 moves again.

[0069] The first robotic arm 2 places the pre-forming mold on the conveying mechanism 1 at intervals and continuously. As the pre-forming mold passes through the platform 4, it is automatically laid up from the inside to the outside. When the pre-forming mold moves to the end of the conveying mechanism 1, the laying up is completed and it is automatically demolded under the action of the second robotic arm 3. After demolding, the pre-forming mold returns to the first robotic arm 2 under the drive of the trolley 5 to perform the action cycle.

[0070] This invention achieves point-to-point alignment between the conveying mechanism and the platform, allowing the prepreg replacement time to coincide with the mold movement time, thereby reducing replacement time and improving efficiency.

[0071] Preferably, the number of platforms 4 on the conveying mechanism 1 is equal to the number of layers required for the preforming mold, and the platforms 4 can simultaneously perform single-layer layering operations on the preforming mold set on the platforms 4.

[0072] The above structure mainly describes how the production line works. The key technical point is the cooperation between the conveying mechanism 1 and the platform 4, which enables several pre-forming molds to be positioned simultaneously with the platform 4 above them. The following is a detailed explanation.

[0073] Lifting and fixing of preformed molds:

[0074] The conveying mechanism 1 includes a conveyor belt 101 and baffles 103 fixedly installed on both sides of the conveyor belt 101. The platform 4 is mounted on the baffles 103 and suspended above the conveyor belt 101. The conveyor belt 101 can drive the preformed mold to move from the first robot 2 to the second robot 3.

[0075] The conveyor belt 101 is provided with several fixed supports 102. The fixed supports 102 are used to fix the pre-forming mold on the conveyor belt 101. A lifting column 104 is provided between the fixed supports 102 and the conveyor belt 101. The lifting column 104 can drive the fixed supports 102 to rise and fall above the conveyor belt 101.

[0076] The conveyor belt 101 moves in a fixed direction, and several fixed supports 102 can move simultaneously and reach the position of the platform 4 during the movement, thereby actively positioning with the prepreg.

[0077] Because the device is simple, the fixing method of the fixed support 102 is mainly elastic clamping. The fixed support 102 includes a first elastic plate 1021 and a second elastic plate 1022 installed on the top of the lifting column 104. The pre-forming mold can be clamped and set between the first elastic plate 1021 and the second elastic plate 1022 under the drive of the first robot 2. The pre-forming mold is moved forward by the conveyor belt 101 in the clamped state.

[0078] To prevent the preform mold from falling off when it contacts the platform 4 upwards, a support plate 6 is provided on both the first elastic plate 1021 and the second elastic plate 1022. When the preform mold is clamped between the first elastic plate 1021 and the second elastic plate 1022, the support plate 6 supports the preform mold. A gap is provided between the two support plates 6, which facilitates the removal of the preform mold from between the first elastic plate 1021 and the second elastic plate 1022.

[0079] Single-layer configuration of prepreg:

[0080] The platform 4 includes a storage module 401 and a platform 403 connected to the storage module 401 via a drive device 402. Each storage module 401 contains multiple identical prepregs that have been cut and installed vertically. The platform 403 moves back and forth on the side of the storage module 401 and above the conveyor belt 101 via the drive device 402. During the movement, the platform 403 moves one layer of prepreg in the storage module 401 to above the conveyor belt 101.

[0081] A window 404 is provided on the platform 403, through which the fixed support 102 and the pre-forming mold set on the fixed support 102 pass. When a layer of prepreg is provided on the platform 403, the pre-forming mold passes through the window 404 and comes into contact with the prepreg.

[0082] During this process, since the movement of the platform 403 is fixed, the position of the prepreg taken out from the storage module 401 each time is fixed. When the position of the single-layer prepreg is fixed on the platform 403, and the position of the preforming mold rising each time is fixed, the positioning between the prepreg and the preforming mold can be quickly achieved.

[0083] The layup is not finished when the preformed mold passes through; additional layup operations are required. This invention mainly explores how to achieve efficient and rapid positioning, thereby improving layup efficiency.

[0084] To prevent the prepreg from shifting position when the platform 403 moves, an adhesive strip 7 is provided on one side of the platform 403. A heating wire 8 is pre-installed inside the adhesive strip 7. The heating wire 8 can heat the adhesive strip 7. The heated adhesive strip 7 can bond the prepreg to a certain extent and fix it on the platform 403. However, its bonding effect is limited to fixing and it can be easily peeled off during the layup process.

[0085] When the platform 403 is in a horizontal state, the adhesive strip 7 is positioned away from the material storage module 401.

[0086] In order to achieve uninterrupted production, the storage module 401 includes a housing 4011 installed on the side of the conveyor belt 101 by an L-shaped fixing plate 4012. The L-shaped fixing plate 4012 is located at the bottom of the conveyor belt 101. Several layers of prepreg are vertically placed inside the housing 4011. Both ends of the housing 4011 are open.

[0087] The drive unit 402 is mounted on the L-shaped fixed plate 4012 and is installed between the conveyor belt 101 and the housing 4011.

[0088] Both ends of the housing 4011 are open. One end is used for bonding the prepreg to the platen 403, and the other end is used for feeding the prepreg. Feeding does not affect production at all. However, during the feeding process, the prepreg needs to be kept completely attached to the side closest to the platen 403.

[0089] To simplify the material handling structure and process of the platform 403, the drive device 402 includes an L-shaped track 4021 installed on the side of the housing 4011 and a telescopic pump body 4022 installed on the L-shaped fixed plate 4012. The L-shaped track 4021 is suspended on the conveyor belt 101.

[0090] Two sliders 4023 are provided on the L-shaped track 4021. One side of the platform 403 is rotatably connected to the sliders 4023 via a fastener 4024. The platform 403 is fixed on the L-shaped track 4021 by the sliders 4023. The telescopic rod of the telescopic pump body 4022 is engaged with the fastener 4024 via a gear rod 4025. When the gear rod 4025 moves up and down, the fastener 4024 drives the platform 403 to move on the L-shaped track 4021.

[0091] When the telescopic pump body 4022 extends or retracts once, the platform 403 completes the sequential material picking, and each material picking occurs during the movement of the conveyor belt 101, thereby improving the utilization rate of time.

[0092] The high-efficiency preforming process and preforming system for composite materials in this embodiment can realize the layup of several preforming molds on the production line. During the layup process, there is no need to frequently change the prepreg and preforming mold, which simplifies the process of composite material molding, reduces the difficulty of product manufacturing, and reduces the positioning time and improves the layup efficiency through point-to-point rapid positioning between the preforming mold and the prepreg.

[0093] The above embodiments are merely exemplary embodiments of this application and are not intended to limit this application. The scope of protection of this application is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to this application within its substance and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of this application.

Claims

1. A high-efficiency preforming system for composite materials, characterized in that, include: Conveying mechanism (1) for conveying the preformed mold from its first end to its last end; A first robotic arm (2) is disposed at the head end of the conveying mechanism (1) and is used to place the preform mold at equal intervals and continuously on the conveying mechanism (1); The second robotic arm (3) is located at the end of the conveying mechanism (1), and the second robotic arm (3) demolds the pre-finished product; Platform (4), several of the platform (4) are installed on the conveying mechanism (1) and are arranged sequentially between the first robot (2) and the second robot (3). Each platform (4) is pre-loaded with a prepreg material corresponding to its layup sequence and can place a single layer of prepreg material above the conveying mechanism (1). The overhead crane (5) is positioned above the conveying mechanism (1) and is used to transport the preformed mold after demolding back to the first robot arm (2); The first robotic arm (2) places the preformed mold on the conveying mechanism (1) at intervals and continuously. The preformed mold is automatically laid up from the inside to the outside as it passes through the platform (4). When the preformed mold moves to the end of the conveying mechanism (1), the laying up is completed and it is automatically demolded under the action of the second robotic arm (3). After demolding, the preformed mold returns to the first robotic arm (2) under the drive of the trolley (5) to perform the action cycle. The conveying mechanism (1) includes a conveyor belt (101) and baffles (103) fixedly installed on both sides of the conveyor belt (101). The platform (4) is mounted on the baffles (103) and suspended above the conveyor belt (101). The conveyor belt (101) can drive the preformed mold to move from the first robot (2) to the second robot (3). The conveyor belt (101) is provided with a plurality of fixed supports (102), the fixed supports (102) are used to fix the preformed mold on the conveyor belt (101), and a lifting column (104) is provided between the fixed supports (102) and the conveyor belt (101), the lifting column (104) can drive the fixed supports (102) to rise and fall above the conveyor belt (101); The fixed support (102) includes a first elastic plate (1021) and a second elastic plate (1022) installed on the top of the lifting column (104). The preformed mold can be clamped and placed between the first elastic plate (1021) and the second elastic plate (1022) under the drive of the first robot (2). The preformed mold is moved forward by the conveyor belt (101) in the clamped state. Both the first elastic plate (1021) and the second elastic plate (1022) are provided with support plates (6). When the preformed mold is clamped between the first elastic plate (1021) and the second elastic plate (1022), the support plates (6) support the preformed mold, and a gap is provided between the two support plates (6).

2. The high-efficiency preforming system for composite materials according to claim 1, characterized in that, The number of the platforms (4) on the conveying mechanism (1) is equal to the number of layers required for the preform mold. The platforms (4) can simultaneously perform single-layer layering operations on the preform mold set on the platforms (4).

3. A high-efficiency preforming process for composite materials based on the high-efficiency preforming system for composite materials according to any one of claims 1-2, characterized in that, Includes the following steps: The prepreg is placed sequentially on several platforms, each platform having several identical prepreg sheets pre-set on it; The preformed molds located at the origin are placed on the conveyor belt at intervals according to the distance between the platforms. The conveyor belt drives the preformed molds to move and passes through the platforms in sequence according to the layering order during the movement. The conveyor belt pauses as the preforming mold passes each of the loading platforms, and the preforming mold rises and lays up the prepreg on the loading platform point-to-point until the last loading platform is reached to obtain the pre-finished product. The pre-finished product is demolded, and the demolded pre-forming mold returns to its original position and re-enters the conveyor belt.

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