Thermoplastic composite material forming method

Abstract

According to the thermoplastic composite material forming method, a machine frame is included, first electric push rods are fixedly connected to the inner walls of the machine frame, when the thermoplastic composite material forming device is used, the first electric push rods fixed to the inner walls of the machine frame are started, a fixing frame forms symmetrical abutting force on a connecting sleeve, and a motor drives a first connecting rod to rotate; a thermoplastic composite coiled material is conveyed to a forming area at a constant speed, a third electric push rod pushes a lower thermoplastic mold to conduct synchronous and accurate mold closing, the thermoplastic composite coiled material is accurately cut through a synchronous cutting knife, the thermoplastic composite coiled material is subjected to plastic deformation in a mold cavity, and finally a water pump is started. The atomizer converts water flow into fine and uniform atomized particles, resin curing and shaping are accelerated, water drops which are not completely atomized and backflow cooling water fall into a water guide groove formed in the inner wall of the periphery of the lower thermoplastic mold, recycling of the atomized cooling water is achieved, and the thermoplastic composite material forming method is completed.

Description

Technical Field

[0001] This invention relates to the field of material forming equipment technology, specifically to a method for forming thermoplastic composite materials. Background Technology

[0002] Thermoplastic composites, due to their lightweight, high strength, fatigue resistance, and recyclability, have been widely used in various fields. Their molding equipment and corresponding molding methods have become the core factors determining material properties and product applications. Currently, the molding methods corresponding to mainstream molding equipment achieve composite molding of thermoplastic resin and reinforcement by controlling process parameters such as temperature, pressure, and rate. Therefore, we need a molding method for thermoplastic composites.

[0003] Current thermoplastic composite molding methods and equipment lack a centering horizontal positioning function. Manual adjustment relies on operator experience, resulting in a cumbersome and time-consuming positioning process. This makes them unsuitable for the rapid changeover requirements after roll material replacement in mass production, leading to low production efficiency and limited positioning accuracy. They struggle to handle variations in roll width and slight irregularities at the roll edges, easily causing roll offset, tilting, or surface wrinkles. This results in uneven contact between the roll and the mold during subsequent molding, localized stress concentration, and ultimately, uneven edges, excessive thickness deviations, and disordered reinforcement arrangement in the molded product. These issues severely impact the product's molding requirements. Furthermore, when the traction speed of the molding equipment decreases due to process adjustments, or when there are slight fluctuations in the roll's stiffness and thickness, the unloading mechanism cannot adjust the unloading rate in real time, causing the unloading speed to exceed the traction speed. This leads to phenomena such as material accumulation, loosening, and wrinkling in the unloading area. Unloading too quickly causes the material to be subjected to unstable instantaneous tension during traction, which can easily cause tensile deformation, interlayer delamination, and even relative sliding between the material and the molding die, damaging the interfacial bonding between the reinforcement and the resin. Ultimately, this results in internal defects and fluctuations in mechanical properties in the molded product. Furthermore, the accumulated material can interfere with production continuity, increase the frequency of equipment downtime for adjustments, and reduce overall production efficiency. After thermoplastic composite materials are molded, untimely or uneven cooling can cause product warping and shrinkage deformation, while also reducing the dimensional stability and mechanical properties of the product. Atomized cooling water will scatter in large quantities into the surrounding environment of the equipment. Without an effective recycling system, this will not only cause serious waste of water resources but also increase the water consumption costs in the production process. Summary of the Invention

[0004] The purpose of this invention is to provide a method for molding thermoplastic composite materials to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A method for molding a thermoplastic composite material includes a frame. First electric push rods are fixedly connected to the inner walls of the frame. A movable frame is fixedly connected to one end of each first electric push rod. A contact frame is installed on the inner wall of each movable frame. An adjusting sleeve is installed on the outer wall of each contact frame. A first spring abuts against one side of the adjusting sleeve. A contact bead is installed at one end of each contact frame. Fixed frames are installed on the inner walls of the movable frame. A connecting sleeve abuts against one end of each fixed frame. A thermoplastic composite roll is installed on the outer wall of the connecting sleeve. A tensioning cylinder abuts against the outer wall of the thermoplastic composite roll. A rotating rod frame is installed on the inner wall of the tensioning cylinder. Second springs are welded to both sides of the rotating rod frame. Positioning rods are fixedly connected to the inner walls of the frame. A motor is fixedly connected to the outer wall of each positioning rod. A first connecting rod is installed at one end of the motor. The outer wall of the first connecting rod... The machine is equipped with a first conveying cylinder, a second connecting rod on the inner wall of the frame, a second conveying cylinder on the outer wall of the second connecting rod, a lower thermoplastic mold on the inner wall of the frame, a water guide groove on the inner wall of the lower thermoplastic mold, a water guide pipe below the lower thermoplastic mold, a return water tank at one end of the water guide pipe, a second electric push rod fixedly connected to the inner wall of the frame, an upper thermoplastic mold fixedly connected to one end of the second electric push rod, a limit rod fixedly connected to the inner wall of the upper thermoplastic mold, a water pump fixedly connected to the outer wall of the limit rod, a water delivery pipe on the outer wall of the water pump, an atomizer at one end of the water delivery pipe, a suction pipe on the outer wall of the water pump, a rotating wheel on the outer wall of the suction pipe, a cutting blade below the upper thermoplastic mold, and a third electric push rod fixedly connected to the lower end of the lower thermoplastic mold.

[0006] Preferably, the abutment frame is threadedly connected to the adjusting sleeve, and the outer wall of the abutment frame is threaded.

[0007] Preferably, the abutment frame is movably connected to the abutment bead, and the inner wall of the abutment frame has an open design.

[0008] Preferably, the fixing frame is engaged with the connecting sleeve, and the fixing frame is a tapered structure.

[0009] Preferably, the rotating rod frame is movably connected to the machine frame, and the rotating rod frame is symmetrically arranged about the central axis of the machine frame.

[0010] Preferably, the atomizer is engaged with the upper thermoplastic mold, and the atomizers are arranged at equal intervals on the inner wall of the upper thermoplastic mold.

[0011] A method for molding thermoplastic composite materials includes the following steps: S1. The resin is made into micron powder and then uniformly attached to the fiber bundle using an electrostatic method to form a roll. The roll of thermoplastic composite material is then fitted onto the outer wall of the connecting sleeve. The connecting sleeve is then pressed against one end of the fixed frame. The fixed frame is fixedly connected to the inner wall of the moving frame, completing the initial installation of the roll. Under the elastic force of the second springs on both sides, the tensioning cylinder on the inner wall of the rotating frame is pressed tightly against the outer wall of the thermoplastic composite roll, and the initial tension of the thermoplastic composite roll is achieved through the tension of the second spring. S2. Start the first electric push rod fixed to the inner wall of the starter frame. The first electric push rod drives the moving frame to move horizontally. During the movement, the adjusting sleeve of the outer wall of the contact frame remains stable under the elastic action of the first spring. The contact bead at one end of the contact frame contacts the fixed frame. Through the synchronous adjustment of the first electric push rods on both sides, the fixed frame forms a symmetrical contact force on the connecting sleeve, accurately corrects the horizontal position of the thermoplastic composite roll, realizes the rapid centering positioning of the thermoplastic composite roll, and ensures that the roll conveying direction is aligned with the subsequent forming mechanism. S3. After positioning is completed, the motor fixed on the outer wall of the positioning rod will be started. The motor drives the first connecting rod to rotate, and the first connecting rod drives the first conveying cylinder on the outer wall to rotate. At the same time, the second connecting rod on the inner wall of the frame rotates synchronously with the traction of the first conveying cylinder, driving the second conveying cylinder to run. The first and second conveying cylinders cooperate to form a conveying channel, conveying the thermoplastic composite roll material to the forming area at a uniform speed. During this process, if the feeding speed fluctuates, the adjusting sleeve will be rotated to adjust the pressure of the first spring and adjust the contact force of the contact bead. S4. When the thermoplastic composite roll is conveyed to the forming area between the lower thermoplastic mold and the upper thermoplastic mold, the motor stops running and the roll conveying stops. The second electric push rod and the third electric push rod fixed to the inner wall of the frame are started. The second electric push rod pushes the upper thermoplastic mold to move downward in the vertical direction, and the third electric push rod pushes the lower thermoplastic mold to perform synchronous and precise mold closing. The synchronous cutting blade precisely cuts the thermoplastic composite roll. After the mold is closed, the mold heats and presses the roll according to the preset process parameters, so that the thermoplastic composite roll undergoes plastic deformation in the mold cavity to form a molded blank that meets the specifications. S5. After final molding, the water pump fixed to the inner wall of the upper thermoplastic mold will be started. The water pump will draw recycled water from the return water tank through the water pumping pipe and deliver the water to the atomizer through the water delivery pipe. The atomizer will convert the water flow into fine and uniform atomized particles to quickly cool the newly formed blank and accelerate the resin curing and shaping. During the cooling process, the water droplets that are not completely atomized and the returned cooling water fall into the water guide groove opened on the inner wall of the lower thermoplastic mold. After being collected in the water guide groove, they flow into the return water tank through the water guide pipe below, realizing the recycling of atomized cooling water.

[0012] Compared with the prior art, the beneficial effects of the present invention are: 1. The fixed frame adopts an integrated conical structure design. Its conical surface is precision-machined, providing excellent guidance and fit. Correspondingly, the inner walls of both ends of the connecting sleeve are provided with conical grooves adapted to the conical structure of the fixed frame. The taper, length, and inner wall roughness of these grooves precisely match the conical structural parameters of the fixed frame, ensuring a tight locking effect when the fixed frame and connecting sleeve are fitted together. This effectively limits the axial and radial displacement deviation of the connecting sleeve. During equipment operation, the thermoplastic composite roll is installed on the outer wall of the connecting sleeve. Utilizing the conical locking positioning relationship between the fixed frame and the connecting sleeve, the installation posture of the thermoplastic composite roll can be quickly corrected, ensuring that the central axis of the roll coincides with the processing reference axis of the molding equipment. Simultaneously, it ensures smooth horizontal conveying of the roll, ultimately achieving efficient and precise centering and horizontal positioning of the thermoplastic composite roll. This provides a reliable guarantee for the stability of subsequent molding processes and the consistency of product quality. The contact frame and adjusting sleeve are connected by threads for adjustment. One end of the sleeve forms an abutment with the first spring, which is a compression spring with stable elastic recovery performance. The other end of the sleeve abuts with the abutment bead, which is movably embedded in the spherical groove at the end of the abutment frame. It can rotate flexibly along the groove to reduce contact wear. During equipment operation, the compression of the first spring can be adjusted by rotating the adjusting sleeve along the axial direction, thereby achieving precise control of the abutment pressure of the abutment bead. Under the elastic force of the first spring, the abutment bead always maintains a tight abutment with the outer peripheral wall of the fixed frame. The friction between the abutment bead and the fixed frame forms a damping effect, effectively limiting the rotation speed of the fixed frame. This speed limiting mechanism achieves adjustable abutment pressure through thread adjustment. It can adapt the appropriate speed limiting force according to the conveying requirements of different specifications of thermoplastic composite rolls, and reduce component wear through the rolling contact of the abutment bead, ensuring the stability and durability of the speed limiting effect. This avoids processing defects caused by excessive rotation speed of the fixed frame, ensuring the continuity of the molding process and the consistency of product quality.

[0013] 2. A water pump is fixedly installed at a predetermined position on the upper thermoplastic mold. Its outer wall is fixedly and sealed to one end of a water supply pipe via a sealing joint. The water supply pipe is made of flexible polytetrafluoroethylene (PTFE) to accommodate the internal installation space and prevent coolant leakage. The other end of the water supply pipe is sealed to an atomizer, which is fixed to the upper thermoplastic mold. Its atomizing nozzle is positioned facing the surface of the molded item, and the nozzle's orifice diameter and spray angle are optimized to produce a fine mist spray with a particle size of 5μm. This transforms the coolant into uniform mist particles, increasing the contact area between the coolant and the surface of the molded item, accelerating heat transfer, and achieving rapid and uniform cooling of the molded item. This effectively avoids problems such as uneven cooling, surface watermarks, or thermal stress deformation caused by traditional water cooling methods. A water guide groove is formed along the circumference of the outer wall of the lower thermoplastic mold. This water guide groove adopts an inclined structure design with an inclination angle of 1°. The water guide trough is set at 0 degrees Celsius, and its bottom is polished to reduce fluid flow resistance. One end extends to the inlet of the return water tank, which can accurately guide the condensed coolant after atomization cooling and the incompletely atomized coolant into the return water tank for collection. The return water tank is equipped with a filter layer to filter impurities in the recovered coolant, removing dust, composite material debris and other contaminants mixed in during the cooling process, ensuring the cleanliness of the coolant. The other side of the return water tank is connected to one end of the pump pipe through a sealed joint, and the other end of the pump pipe is sealed to the inlet of the water pump, thus forming a closed-loop circulation circuit. This not only improves the cooling effect and uniformity of the molded items through atomization cooling, ensuring the dimensional accuracy and surface quality of the products, but also reduces water consumption and production costs through the recycling and reuse of coolant. At the same time, the filter structure extends the service life of the coolant and the operational stability of the equipment components. Attached Figure Description

[0014] Figure 1 This is a front view structural diagram of a thermoplastic composite material molding method according to the present invention; Figure 2 This is a rear view structural schematic diagram of a thermoplastic composite material molding method according to the present invention; Figure 3 This is a schematic diagram of the upright and bottom view structure of a thermoplastic composite material molding method according to the present invention; Figure 4 This is a schematic diagram of the sectional structure of a thermoplastic composite material molding method according to the present invention; Figure 5 This invention relates to a method for molding thermoplastic composite materials. Figure 4 Enlarged structural diagram of section A in the middle; Figure 6 This invention relates to a method for molding thermoplastic composite materials. Figure 4 Enlarged structural diagram of section B.

[0015] In the diagram: 1. Frame; 2. First electric push rod; 3. Moving frame; 4. Contact frame; 5. Adjusting sleeve; 6. First spring; 7. Contact bead; 8. Fixed frame; 9. Connecting sleeve; 10. Thermoplastic composite roll; 11. Tensioning cylinder; 12. Rotating rod frame; 13. Second spring; 14. Positioning rod; 15. Motor; 16. First connecting rod; 17. First conveying cylinder; 18. Second connecting rod; 19. Second conveying cylinder; 20. Lower thermoplastic mold; 21. Water guide channel; 22. Water guide pipe; 23. Return water tank; 24. Second electric push rod; 25. Upper thermoplastic mold; 26. Limiting rod; 27. Water pump; 28. Water supply pipe; 29. ​​Atomizer; 30. Water suction pipe; 31. Rotary wheel; 32. Cutting blade; 33. Third electric push rod. Detailed Implementation

[0016] 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.

[0017] Please see Figure 1-6 This invention provides a technical solution for a thermoplastic composite material molding method: A method for molding thermoplastic composite materials includes a frame 1. First electric push rods 2 are fixedly connected to the inner walls of the frame 1. A movable frame 3 is fixedly connected to one end of each first electric push rod 2. A contact frame 4 is installed on the inner wall of each movable frame 3. An adjusting sleeve 5 is installed on the outer wall of each contact frame 4. A first spring 6 is contacted on one side of the adjusting sleeve 5. A contact bead 7 is installed at one end of each contact frame 4. A fixed frame 8 is installed on the inner wall of each movable frame 3. A connecting sleeve 9 is contacted at one end of each fixed frame 8. A thermoplastic composite roll 10 is installed on the outer wall of the connecting sleeve 9. A tensioning cylinder 11 is contacted on the outer wall of the thermoplastic composite roll 10. A rotating rod frame 12 is installed on the inner wall of the tensioning cylinder 11. Second springs 13 are welded to both sides of the rotating rod frame 12. Positioning rods 14 are fixedly connected to the inner walls of each frame 1. A motor 15 is fixedly connected to the outer wall of each positioning rod 14. A first connecting rod 16 is installed at one end of the motor 15. A first conveying cylinder 1 is installed on the outer wall of the first connecting rod 16. 7. A second connecting rod 18 is installed on the inner wall of the frame 1, and a second conveying cylinder 19 is installed on the outer wall of the second connecting rod 18. A lower thermoplastic mold 20 is installed on the inner wall of the frame 1. A water guide groove 21 is opened on the inner wall of the lower thermoplastic mold 20. A water guide pipe 22 is set below the lower thermoplastic mold 20. A return water tank 23 is installed at one end of the water guide pipe 22. A second electric push rod 24 is fixedly connected to the inner wall of the frame 1. One end of the second electric push rod 24 is fixedly connected to the upper thermoplastic mold 20. Mold 25, the inner wall of the upper thermoplastic mold 25 is fixedly connected to a limiting rod 26, the outer wall of the limiting rod 26 is fixedly connected to a water pump 27, the outer wall of the water pump 27 is installed with a water supply pipe 28, one end of the water supply pipe 28 is provided with an atomizer 29, the outer wall of the water pump 27 is installed with a water suction pipe 30, the outer wall of the water suction pipe 30 is installed with a rotating wheel 31, a cutting blade 32 is provided below the upper thermoplastic mold 25, and a third electric push rod 33 is fixedly connected to the lower end of the lower thermoplastic mold 20.

[0018] The contact frame 4 is threadedly connected to the adjusting sleeve 5, and the outer wall of the contact frame 4 is threaded.

[0019] The contact frame 4 is movably connected to the contact bead 7, and the inner wall of the contact frame 4 has an open design.

[0020] The fixing bracket 8 and the connecting sleeve 9 are engaged and connected, and the fixing bracket 8 is a tapered structure.

[0021] The rotating rod frame 12 is movably connected to the frame 1, and the rotating rod frame 12 is symmetrically arranged about the central axis of the frame 1.

[0022] The atomizer 29 is engaged with the upper thermoplastic mold 25, and the atomizer 29 is evenly spaced on the inner wall of the upper thermoplastic mold 25.

[0023] A method for molding thermoplastic composite materials includes the following steps: S1. The resin is made into micron powder and then uniformly attached to the fiber bundle using an electrostatic method to form a roll. The roll of thermoplastic composite roll 10 is fitted onto the outer wall of the connecting sleeve 9. The connecting sleeve 9 is pressed against one end of the fixing frame 8. The fixing frame 8 is fixedly connected to the inner wall of the moving frame 3 to complete the initial installation of the roll. The tensioning cylinder 11 on the inner wall of the rotating rod frame 12 is pressed tightly against the outer wall of the thermoplastic composite roll 10 under the elastic force of the second springs 13 on both sides. The initial tension of the thermoplastic composite roll 10 is achieved by the tension of the second springs 13. S2. The first electric push rod 2, which is fixed to the inner wall of the starting frame 1, drives the moving frame 3 to move horizontally. During the movement, the adjusting sleeve 5 on the outer wall of the contact frame 4 remains stable under the elastic action of the first spring 6. The contact bead 7 at one end of the contact frame 4 contacts the fixed frame 8. Through the synchronous adjustment of the first electric push rods 2 on both sides, the fixed frame 8 forms a symmetrical contact force on the connecting sleeve 9, accurately corrects the horizontal position of the thermoplastic composite roll 10, realizes the rapid centering positioning of the thermoplastic composite roll 10, and ensures that the roll conveying direction is aligned with the subsequent forming mechanism. S3. After positioning is completed, start the motor 15 fixed on the outer wall of the positioning rod 14. The motor 15 drives the first connecting rod 16 to rotate. The first connecting rod 16 drives the first conveying cylinder 17 on the outer wall to rotate. At the same time, the second connecting rod 18 on the inner wall of the frame 1 rotates synchronously with the traction of the first conveying cylinder 17, driving the second conveying cylinder 19 to run. The first conveying cylinder 17 and the second conveying cylinder 19 cooperate to form a conveying channel, conveying the thermoplastic composite roll 10 to the forming area at a uniform speed. During this process, if the feeding speed fluctuates, the adjusting sleeve 5 is rotated to adjust the pressure of the first spring 6 and the abutting force of the abutting bead 7 is adjusted. S4. When the thermoplastic composite roll 10 is conveyed to the forming area between the lower thermoplastic mold 20 and the upper thermoplastic mold 25, the motor 15 stops running, the roll material conveying stops, the second electric push rod 24 and the third electric push rod 33 fixed to the inner wall of the starter frame 1 are activated, the second electric push rod 24 pushes the upper thermoplastic mold 25 to move downward in the vertical direction, and the third electric push rod 33 pushes the lower thermoplastic mold 20 to perform synchronous and precise mold closing, and the synchronous cutting blade 32 precisely cuts the thermoplastic composite roll 10. After the mold is closed, the mold heats and presses the roll material according to the preset process parameters, so that the thermoplastic composite roll 10 undergoes plastic deformation in the mold cavity to form a molded blank that meets the specifications. S5. After final molding, the water pump 27 fixed to the inner wall of the upper thermoplastic mold 25 will be started. The water pump 27 will draw the recycled water in the return water tank 23 through the water pumping pipe 30 and deliver the water to the atomizer 29 through the water supply pipe 28. The atomizer 29 will convert the water flow into fine and uniform atomized particles to quickly cool the newly formed blank and accelerate the resin curing and shaping. During the cooling process, the water droplets that are not completely atomized and the returned cooling water will fall into the water guide groove 21 opened on the inner wall of the lower thermoplastic mold 20. After being collected by the water guide groove 21, the water will flow into the return water tank 23 through the water guide pipe 22 below, so as to realize the recycling of atomized cooling water.

[0024] It should be noted that this invention is a method for molding thermoplastic composite materials. In use, resin is made into micron-sized powder, which is then uniformly adhered to fiber bundles using electrostatic methods to form a roll. The rolled thermoplastic composite roll 10 is fitted onto the outer wall of the connecting sleeve 9. The first electric push rod 2, fixed to the inner wall of the starting frame 1, drives the moving frame 3 to move horizontally, causing the fixed frame 8 to form a symmetrical resisting force against the connecting sleeve 9. The motor 15 drives the first connecting rod 16 to rotate, conveying the thermoplastic composite roll 10 uniformly to the molding area. The second electric push rod 24 and the third electric push rod 33, fixed to the inner wall of the starting frame 1, push the thermoplastic mold 20 synchronously and precisely to close. The synchronous cutting blade 32 cuts the thermoplastic... The thermoplastic composite roll 10 is precisely cut. After mold closing, the mold heats and pressurizes the roll according to preset process parameters, causing the thermoplastic composite roll 10 to undergo plastic deformation in the mold cavity to form a molded blank that meets the specifications. Finally, the water pump 27 is started, and water is delivered to the atomizer 29 through the water pipe 28. The atomizer 29 converts the water flow into fine and uniform atomized particles, which rapidly cool the newly formed blank and accelerate the resin curing and shaping. During the cooling process, the water droplets that are not completely atomized and the backflowing cooling water fall into the water guide groove 21 opened on the inner wall of the lower thermoplastic mold 20. After being collected by the water guide groove 21, the water flows into the return water tank 23 through the water guide pipe 22 below, realizing the recycling of atomized cooling water. In this way, a thermoplastic composite material molding method is completed.

[0025] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A method for molding thermoplastic composite materials, characterized in that: Includes a frame (1), the inner wall of which is fixedly connected to a first electric push rod (2), one end of which is fixedly connected to a movable frame (3), the inner wall of which is installed with a contact frame (4), the outer wall of which is installed with an adjusting sleeve (5), one side of which is in contact with a first spring (6), one end of which is installed with a contact bead (7), the inner wall of which is installed with a fixed frame (8), one end of which is in contact with a connecting sleeve (9), the connecting sleeve (9) The outer wall of the frame (1) is fitted with a thermoplastic composite roll (10), the outer wall of which abuts against a tensioning cylinder (11). A rotating rod frame (12) is installed on the inner wall of the tensioning cylinder (11). A second spring (13) is welded to both sides of the rotating rod frame (12). A positioning rod (14) is fixedly connected to the inner wall of the frame (1). A motor (15) is fixedly connected to the outer wall of the positioning rod (14). A first connecting rod (16) is installed at one end of the motor (15). A first conveying cylinder (17) is installed on the outer wall of the first connecting rod (16). (1) The inner wall of the frame (1) is equipped with a second connecting rod (18), and the outer wall of the second connecting rod (18) is equipped with a second conveying cylinder (19). The inner wall of the frame (1) is equipped with a lower thermoplastic mold (20), and the inner wall of the lower thermoplastic mold (20) is provided with a water guide groove (21). A water guide pipe (22) is provided below the lower thermoplastic mold (20), and a return water tank (23) is installed at one end of the water guide pipe (22). The inner wall of the frame (1) is fixedly connected with a second electric push rod (24), and one end of the second electric push rod (24) is fixedly connected to an upper thermoplastic mold (25). The upper thermoplastic mold (25) has a limit rod (26) fixedly connected to its inner wall, and a water pump (27) fixedly connected to the outer wall of the limit rod (26). A water supply pipe (28) is installed on the outer wall of the water pump (27). An atomizer (29) is provided at one end of the water supply pipe (28). A water suction pipe (30) is installed on the outer wall of the water pump (27). A rotating wheel (31) is installed on the outer wall of the water suction pipe (30). A cutting blade (32) is provided below the upper thermoplastic mold (25). A third electric push rod (33) is fixedly connected to the lower end of the lower thermoplastic mold (20).

2. The method for molding a thermoplastic composite material according to claim 1, characterized in that: The contact frame (4) is threadedly connected to the adjusting sleeve (5), and the outer wall of the contact frame (4) is threaded.

3. The method for molding a thermoplastic composite material according to claim 1, characterized in that: The contact frame (4) is movably connected to the contact bead (7), and the inner wall of the contact frame (4) is designed with openings.

4. The method for molding a thermoplastic composite material according to claim 1, characterized in that: The fixing frame (8) is engaged with the connecting sleeve (9), and the fixing frame (8) is a tapered structure.

5. The method for molding a thermoplastic composite material according to claim 1, characterized in that: The rotating rod frame (12) is movably connected to the frame (1), and the rotating rod frame (12) is symmetrically arranged about the central axis of the frame (1).

6. The method for molding a thermoplastic composite material according to claim 1, characterized in that: The atomizer (29) is engaged with the upper thermoplastic mold (25), and the atomizer (29) is arranged at equal intervals on the inner wall of the upper thermoplastic mold (25).

7. A method for molding thermoplastic composite materials, characterized in that: Includes the following steps: S1. The resin is made into micron powder and then uniformly attached to the fiber bundle using an electrostatic method to form a roll. The roll of thermoplastic composite roll (10) is fitted onto the outer wall of the connecting sleeve (9). The connecting sleeve (9) is pressed against one end of the fixing frame (8). The fixing frame (8) is fixedly connected to the inner wall of the moving frame (3) to complete the initial installation of the roll. The tensioning cylinder (11) on the inner wall of the rotating rod frame (12) is pressed tightly against the outer wall of the thermoplastic composite roll (10) under the elastic force of the second springs (13) on both sides. The initial tension of the thermoplastic composite roll (10) is achieved by the tension of the second springs (13). S2. The first electric push rod (2) fixed on the inner wall of the starting frame (1) is used to drive the moving frame (3) to move horizontally. During the movement, the adjusting sleeve (5) on the outer wall of the contact frame (4) remains stable under the elastic action of the first spring (6). The contact bead (7) at one end of the contact frame (4) contacts the fixed frame (8). Through the synchronous adjustment of the first electric push rods (2) on both sides, the fixed frame (8) forms a symmetrical contact force on the connecting sleeve (9), accurately corrects the horizontal position of the thermoplastic composite roll (10), realizes the rapid centering positioning of the thermoplastic composite roll (10), and ensures that the roll conveying direction is aligned with the subsequent forming mechanism. S3. After positioning is completed, start the motor (15) fixed on the outer wall of the positioning rod (14). The motor (15) drives the first connecting rod (16) to rotate. The first connecting rod (16) drives the first conveying cylinder (17) on the outer wall to rotate. At the same time, the second connecting rod (18) on the inner wall of the frame (1) rotates synchronously with the traction of the first conveying cylinder (17), driving the second conveying cylinder (19) to run. The first conveying cylinder (17) and the second conveying cylinder (19) cooperate to form a conveying channel, and convey the thermoplastic composite roll (10) to the forming area at a uniform speed. During this process, if the feeding speed fluctuates, the adjusting sleeve (5) is rotated to adjust the pressure of the first spring (6) and the contact force of the contact bead (7) is adjusted. S4. When the thermoplastic composite roll (10) is transported to the forming area between the lower thermoplastic mold (20) and the upper thermoplastic mold (25), the motor (15) stops running and the roll is transported. The second electric push rod (24) and the third electric push rod (33) fixed on the inner wall of the starter frame (1) are activated. The second electric push rod (24) pushes the upper thermoplastic mold (25) to move downward in the vertical direction. The third electric push rod (33) pushes the lower thermoplastic mold (20) to perform synchronous and precise mold closing. The synchronous cutting blade (32) precisely cuts the thermoplastic composite roll (10). After the mold is closed, the mold heats and presses the roll according to the preset process parameters, so that the thermoplastic composite roll (10) undergoes plastic deformation in the mold cavity to form a molded blank that meets the specifications. S5. After the final molding is completed, the water pump (27) fixed on the inner wall of the upper thermoplastic mold (25) will be started. The water pump (27) will draw the recycled water in the return water tank (23) through the water pumping pipe (30) and deliver the water to the atomizer (29) through the water supply pipe (28). The atomizer (29) will convert the water flow into fine and uniform atomized particles to quickly cool the newly formed blank and accelerate the resin curing and shaping. During the cooling process, the water droplets that are not completely atomized and the returned cooling water fall into the water guide groove (21) opened on the inner wall of the lower thermoplastic mold (20). After being collected by the water guide groove (21), the water flows into the return water tank (23) through the water guide pipe (22) below, so as to realize the recycling of atomized cooling water.

Images