Hot-pressing impregnation device for carbon fiber prepreg production line

Abstract

The invention relates to the technical field of composite material manufacturing, in particular to a hot-pressing impregnation device for a carbon fiber prepreg production line, which comprises a supporting seat, a conveying cutting structure is arranged in the supporting seat, a plate is placed at the upper end of the conveying cutting structure, and two supporting plates are mounted on one side of the supporting seat. A gear is rotationally connected to the outer side wall of each supporting plate, two racks are symmetrically engaged to the two sides of each gear, a rotating shaft is fixedly connected to the ends, deviating from each other, of the two racks on the same side, and a hexagonal hot pressing plate is rotationally connected to one side of each rotating shaft; according to the plate hot-pressing device, a plate is subjected to hot pressing through the two hexagonal heating plates, meanwhile, after the plate is subjected to hot pressing, the hexagonal heating plates are driven by the second motor to convey the plate, meanwhile, after the hexagonal heating plates rotate, the end face for heating the plate is switched, a new plate can be rapidly reheated, and the plate hot-pressing yield is increased.

Description

Technical Field

[0001] The invention relates to the technical field of composite material manufacturing, in particular to a hot pressing impregnation device for a carbon fiber prepreg production line. Background Art

[0002] Carbon fiber prepreg, a high-performance composite material, boasts high strength, high toughness, high and low temperature resistance, and corrosion resistance. It is widely used in aerospace, automotive, wind turbine blades, and other fields. Its production process primarily involves fiber unwinding, resin impregnation, impregnation, winding, and resin recovery. Hot pressing and impregnation are the core steps, directly impacting the quality and performance of the prepreg.

[0003] In the existing hot pressing impregnation device, the carbon fiber prepreg sheets that have just been hot-pressed by the hot pressing plate need to be removed from the hot pressing plate one by one by workers. At this time, the temperature around the hot pressing plate is high, which is prone to safety accidents. At the same time, after hot pressing a sheet, if the hot pressing plate is not cooled down and continues to hot press a new sheet, it will cause the resin on the upper end of the carbon fiber prepreg to degrade, affecting the yield rate and increasing the cost of recovering the impregnating resin. Waiting for the hot pressing plate to cool down will also affect the work efficiency of hot pressing the carbon fiber prepreg. Summary of the Invention

[0004] The purpose of the invention is to provide a hot pressing impregnation device for a carbon fiber prepreg production line to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a hot pressing and impregnation device for a carbon fiber prepreg production line, comprising a support base, a conveying and cutting structure provided inside the support base, a plate placed on the upper end of the conveying and cutting structure, two support plates installed on one side of the support base, the outer side wall of each support plate is rotatably connected to a gear, two racks are symmetrically meshed on both sides of each gear, and the ends of the two racks on the same side that are away from each other are fixedly connected to a rotating shaft, and one side of each rotating shaft is rotatably connected to a hexagonal hot pressing plate; A driving structure is provided on the side of the gear away from the support plate, an elastic locking structure is provided between the driving structure and the gear, and the driving structure can drive the gear to rotate through the elastic locking structure; Positioning holes are symmetrically opened on both sides of each hexagonal hot pressing plate, a sleeve is provided inside each positioning hole, a piston structure is provided between the two sleeves, a liquid push rod is installed on the piston structure, and the output end of the liquid push rod is fixedly connected to the heating plate, and the heating plate can conflict with the inner wall of the hexagonal hot pressing plate; A threaded drive structure is installed at one end of each sleeve away from the piston structure, and the threaded drive structure can push the elastic locking structure to release the locking of the gear.

[0006] Preferably, the conveying and cutting structure includes a conveyor belt, which is installed on the upper surface of the support seat, and the plate is in conflict with the upper end of the conveyor belt.

[0007] Preferably, two connecting rods are symmetrically connected to the opposite sides of the two support plates, a cutting knife is fixed between the two connecting rods, and the cutting knife can contact the plate, the outer wall of the support plate is fixed with motor three, and the output end of motor three is fixed to the connecting rod.

[0008] Preferably, the driving structure includes a motor 1, which is fixed to the outer wall of the support plate, and the output end of the motor 1 is fixed with a cross pin.

[0009] Preferably, the elastic locking structure includes coupling 1, which is fixed to the side of the gear away from the support plate, and the outer wall of the cross pin is slidably connected to coupling 2, and coupling 2 can be plugged into coupling 1, a spring is fixed between coupling 1 and coupling 2, and the outer wall of coupling 2 is fixed to a positioning plate, and the side surfaces at both ends of the positioning plate are symmetrically provided with sliding grooves, and the sliding grooves can interfere with the sleeve.

[0010] Preferably, the piston structure includes a hydraulic chamber, which is movably connected between the two sleeves, and the inner wall of the hydraulic chamber is symmetrically slidably connected to two piston rods.

[0011] Preferably, the threaded drive structure includes two internally threaded tubes, which are symmetrically installed at both ends of the hydraulic chamber. The inner wall of each internally threaded tube is rotatably connected to a threaded rod fixed to the piston rod, and each threaded rod is fixed to a sleeve at a corresponding position. A square groove is provided at the end of the threaded rod away from the hydraulic chamber, and a square block is slidably connected to the inner wall of the square groove. The outer wall of the support plate is fixed to two sliding seats, and a support seat is slidably connected between the sliding seats. Motor 2 is fixed to the support seat, and the output end of motor 2 is fixed to the block.

[0012] Preferably, a plurality of positioning blocks are installed in a row along the circumference of the inner wall of the positioning hole, and the positioning blocks are rotatably connected to the outer wall of the sleeve. A plurality of pawls are installed at equal distances on the outer wall of the sleeve close to the support plate, and each pawl can interfere with the positioning block at the corresponding position.

[0013] Compared with the prior art, the present invention has the following beneficial effects: The motor drives the gear to rotate, so that the gear drives the two hexagonal hot pressing plates to hot press the plate. When the hot pressing of the plate is completed, the motor drives the threaded rod to rotate, so that the threaded rod pushes the sleeve to contact the positioning plate, and the heating plate moves toward the direction of the hydraulic chamber, thereby disconnecting the connection between coupling 1 and coupling 2. The hexagonal hot pressing plate is then driven to rotate by the pawl, so that the two hexagonal hot pressing plates push the plate therein to the inside of the storage shell. Then, when the plate is transferred, the heating plate returns to its original position and heats the inner wall of the hexagonal hot pressing plate closest to the plate again, so as to hot press the plate transferred later. This allows the plate that has just been hot-pressed to be cut and transferred at the same time as the end face of the hot pressing can be switched for gradual reheating to prevent the overheated hot pressing plate from directly heating the plate and causing the resin on the plate to degrade, thereby improving the yield rate of the plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further explained below in conjunction with the accompanying drawings and examples: Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the present invention after removing the support plate; Figure 3 For the present invention Figure 2 A local enlarged view of point A in FIG; Figure 4 Schematic diagram of the cross-sectional structure of the hydraulic chamber of the present invention; Figure 5 For the present invention Figure 4 A partial enlarged view of point B in the middle; Figure 6 It is a schematic cross-sectional structural diagram of the conveyor belt of the present invention; Figure 7 Schematic diagram of the cross-sectional structure of the hexagonal heating plate of the present invention; Figure 8 This is a structural breakdown diagram of a coupling 1 of the present invention; Figure 9 This is a cross-sectional view of the threaded rod structure of the present invention after being disassembled.

[0015] Description of reference numerals: 1. Support plate; 2. Hexagonal hot pressing plate; 3. Rotating shaft; 4. Rack; 5. Gear; 6. Coupling 1; 7. Coupling 2; 71. Cross pin; 8. Spring; 9. Positioning plate; 10. Sliding groove; 11. Motor 1; 12. Hydraulic chamber; 13. Hydraulic push rod; 14. Heating plate; 15. Piston rod; 16. Threaded rod; 17. Internally threaded tube; 18. Block; 19. Square groove; 20. Motor 2; 21. Ratchet; 22. Support seat; 23. Conveyor belt; 24. Plate; 25. Storage shell; 26. Sliding seat; 27. Motor 3; 28. Cutter; 29. Casing; 30. Positioning block; 31. Positioning hole; 32. Connecting rod; 33. Support seat. DETAILED DESCRIPTION

[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0017] See also Figures 1-9 The present invention provides a technical solution: a hot pressing and impregnation device for a carbon fiber prepreg production line, comprising a support base 22, a conveying and cutting structure provided inside the support base 22, a plate 24 placed on the upper end of the conveying and cutting structure, two support plates 1 installed on one side of the support base 22, the outer side wall of each support plate 1 is rotatably connected to a gear 5, two racks 4 are symmetrically meshed on both sides of each gear 5, and a rotating shaft 3 is fixed to the opposite ends of the two racks 4 on the same side, and a hexagonal hot pressing plate 2 is rotatably connected to one side of each rotating shaft 3; A driving structure is provided on the side of the gear 5 away from the support plate 1. An elastic locking structure is provided between the driving structure and the gear 5, and the driving structure can drive the gear 5 to rotate through the elastic locking structure; Each hexagonal hot pressing plate 2 has symmetrical positioning holes 31 on both sides. A sleeve 29 is provided inside each positioning hole 31. A piston structure is provided between the two sleeves 29. A hydraulic push rod 13 is installed on the piston structure. The output end of the hydraulic push rod 13 is fixedly connected to a heating plate 14, and the heating plate 14 can conflict with the inner wall of the hexagonal hot pressing plate 2. A threaded drive structure is installed at one end of each sleeve 29 away from the piston structure. The threaded drive structure can push the elastic locking structure to release the locking of the gear 5.

[0018] Specifically, when the gear 5 rotates, it can drive the two racks 4 on the same side to move in directions away from each other, and at the same time drive the hexagonal hot pressing plate 2 to move together. At the same time, when the elastic locking structure is not locked, if the two hexagonal hot pressing plates 2 move synchronously in directions away from each other, the two racks 4 will drive the gear 5 to rotate in the opposite direction.

[0019] The conveying and cutting structure includes a conveyor belt 23 , which is mounted on the upper surface of the support base 22 , and the plate 24 is in contact with the upper end of the conveyor belt 23 .

[0020] Among them, two connecting rods 32 are symmetrically connected to the opposite sides of the two support plates 1, a cutting knife 28 is fixed between the two connecting rods 32, and the cutting knife 28 can contact the plate 24, and the outer wall of the support plate 1 is fixed with a motor three 27, and the output end of the motor three 27 is fixed to the connecting rod 32.

[0021] Specifically, the conveyor belt 23 drives the plate 24 to be continuously transported toward the hexagonal hot pressing plate 2. When the hexagonal hot pressing plate 2 can completely cover the plate 24, the conveyor belt 23 will stop running. At the same time, the motor 3 27 drives the connecting rod 32 to rotate ninety degrees, so that the cutting knife 28 cuts the plate 24.

[0022] The driving structure includes a motor 11 , which is fixed to the outer wall of the support plate 1 , and a cross pin 71 is fixed to the output end of the motor 11 .

[0023] Among them, the elastic locking structure includes a coupling 6, which is fixed to the side of the gear 5 away from the support plate 1, and the outer wall of the cross pin 71 is slidably connected to the coupling 2 7, and the coupling 2 7 can be plugged into the coupling 1 6, and a spring 8 is fixed between the coupling 1 6 and the coupling 2 7, and the outer wall of the coupling 2 7 is fixed with a positioning plate 9, and the side surfaces at both ends of the positioning plate 9 are symmetrically provided with sliding grooves 10, and the sliding grooves 10 can conflict with the sleeve 29.

[0024] The piston structure includes a hydraulic chamber 12 , which is movably connected between the two sleeves 29 , and two piston rods 15 are symmetrically slidably connected to the inner wall of the hydraulic chamber 12 .

[0025] Among them, the threaded drive structure includes two internal threaded tubes 17, which are symmetrically installed at both ends of the hydraulic chamber 12. The inner wall of each internal threaded tube 17 is rotatably connected to a threaded rod 16 fixed to the piston rod 15, and each threaded rod 16 is fixed to the sleeve 29 at the corresponding position. A square groove 19 is opened at the end of the threaded rod 16 away from the hydraulic chamber 12, and a block 18 is slidably connected to the inner wall of the square groove 19. The outer wall of the support plate 1 is fixed to two sliding seats 26, and a support seat 33 is slidably connected between the sliding seats 26. Motor 2 20 is fixed to the support seat 33, and the output end of motor 20 is fixed to the block 18.

[0026] Among them, a plurality of positioning blocks 30 are installed in a row on the inner wall circumference of the positioning hole 31, and the positioning block 30 is rotatably connected to the outer wall of the sleeve 29. A plurality of ratchet pawls 21 are installed at equal distances on the outer wall of the sleeve 29 near the end of the support plate 1, and each ratchet 21 can conflict with the positioning block 30 at the corresponding position. The motor 20 can drive the block 18 to rotate, and the block 18 drives the threaded rod 16 and the sleeve 29 to rotate together. During the rotation of the sleeve 29, the ratchet 21 will also rotate and move towards the positioning block. When the threaded rod 16 rotates to the end, the pawl 21 will also come into conflict with the positioning block 30, and the threaded rod 16 will start to idle in place. At this time, the rotation of the threaded rod 16 will push the positioning block 30 to rotate through the pawl 21, and the positioning block 30 will drive the hexagonal hot pressing plate 2 to start rotating. However, when the threaded rod 16 drives the pawl 21 to rotate in the opposite direction, the pawl 21 will elastically rotate in the opposite direction when it comes into conflict with the positioning block 30, thereby not pushing the positioning block 30 and the hexagonal hot pressing plate 2 to rotate.

[0027] Specifically, the sliding groove 10 is always sleeved on the outer side wall of the threaded rod 16, and Figure 9As long as there is a thread on the side of the threaded rod 16 close to the hydraulic chamber 12, when the threaded rod 16 moves toward the sliding groove 10 through the internal thread of the internal threaded tube 17, the threaded part of the threaded rod 16 will not contact the inner wall of the sliding groove 10. When the threaded rod 16 moves in the direction of the sliding groove 10, the sleeve 29 will also move in the direction of the sliding groove 10, and resist and push the positioning plate 9 to slide. During the sliding of the positioning plate 9, the coupling 1 6 and the positioning plate 9 will begin to separate, and the spring 8 will be stretched. During the movement of the threaded rod 16, the piston rod 15 will also move in the direction away from the hydraulic chamber 12, thereby causing the liquid inside the hydraulic chamber 12 to be pumped, thereby causing the liquid push rod 13 to drive the heating plate 14 to slide in the direction of the hydraulic chamber 12. At this time, when the threaded rod 16 moves to the end, the coupling 1 6 and the coupling 2 7 will be completely separated. At this time, the pawl 21 drives the positioning block 30 and the hexagonal hot pressing plate 2 to rotate. , so that the two hexagonal hot pressing plates 2 rotate in opposite directions and push the plate 24 between them into the interior of the storage shell 25. At the same time, when the two hexagonal hot pressing plates 2 rotate and produce mutual conflict, each hexagonal hot pressing plate 2 will push the corresponding rack 4 to slide, and together drive the gear 5 separated by the elastic locking structure to rotate, the coupling 1 6 will rotate together with the gear 5, while the position of the coupling 2 7 remains unchanged, and the spring 8 rotates to store elastic potential energy. After that, when the hexagonal hot pressing plate 2 rotates sixty degrees, the flat surface between the two hexagonal hot pressing plates 2 will fit together again, and the gear 5 and the spring 8 will rotate and reset. After the hexagonal hot pressing plate 2 has completed its rotation, the liquid push rod 13 will push the heating plate 14 to its original position again, so that the heating plate 14 will conflict with the inner wall of the corresponding hexagonal hot pressing plate 2 and limit the hexagonal hot pressing plate 2. At the same time, the position of the heating plate 14 inside each hexagonal hot pressing plate 2 is facing the direction of the plate 24, and the hexagonal hot pressing plate 2 is heated.

[0028] Working principle: The plate 24 is continuously and indirectly conveyed between the two hexagonal hot pressing plates 2 by the conveyor belt 23, and then the plate 24 conveyed between the hexagonal hot pressing plates 2 is cut by the cutter 28, and then the side of the hexagonal hot pressing plate 2 close to the plate 24 is heated by the heating plate 14, and at the same time, the motor 11 drives the gear 5 to rotate, so that the gear 5 drives the two hexagonal hot pressing plates 2 to hot press the plate 24. After the hot pressing of the plate 24 is completed, the motor 2 20 drives the threaded rod 16 to rotate, so that the threaded rod 16 pushes the sleeve 29 to resist the positioning plate 9, and at the same time the heating plate 14 moves toward the direction of the hydraulic chamber 12, thereby disconnecting the connection between the coupling 1 6 and the coupling 2 7, and then the ratchet 21 drives the hexagonal hot pressing plate 2 to rotate, so that the two The hexagonal hot pressing plate 2 pushes the plate 24 therein to the inside of the storage shell 25. At the same time, during the rotation of the hexagonal hot pressing plate 2, the gear 5 will also rotate accordingly with the position of the hexagonal hot pressing plate 2, thereby preventing the two hexagonal hot pressing plates 2 from having hard contact. Then, when the plate 24 is transferred, the heating plate 14 returns to its original position and heats the inner wall of the hexagonal hot pressing plate 2 closest to the plate 24 again, so as to hot-press the plate 24 that is transferred later. In this way, while cutting and transferring the plate 24 that has just been hot-pressed, the end face of the hot pressing can be switched and gradually heated again, thereby preventing the overheated heating plate 14 from directly heating the plate 24 and causing the resin on the plate 24 to degrade, thereby improving the yield rate of the plate 24.

[0029] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A hot pressing impregnation device for a carbon fiber prepreg production line, comprising a support seat (22), characterized in that: A conveying and cutting structure is provided inside the support seat (22), a plate (24) is placed on the upper end of the conveying and cutting structure, two support plates (1) are installed on one side of the support seat (22), the outer side wall of each support plate (1) is rotatably connected to a gear (5), two racks (4) are symmetrically meshed on both sides of each gear (5), and the two racks (4) on the same side are fixedly connected to a rotating shaft (3) at their opposite ends, and one side of each rotating shaft (3) is rotatably connected to a hexagonal hot pressing plate (2); A driving structure is provided on a side of the gear (5) away from the support plate (1), an elastic locking structure is provided between the driving structure and the gear (5), and the driving structure can drive the gear (5) to rotate via the elastic locking structure; Positioning holes (31) are symmetrically provided on both sides of each of the hexagonal hot pressing plates (2), a sleeve (29) is provided inside each of the positioning holes (31), a piston structure is provided between the two sleeves (29), a liquid push rod (13) is installed on the piston structure, and a heating plate (14) is fixedly connected to the output end of the liquid push rod (13), and the heating plate (14) can conflict with the inner wall of the hexagonal hot pressing plate (2); A threaded drive structure is installed at one end of each sleeve (29) away from the piston structure, and the threaded drive structure can push the elastic locking structure to release the locking of the gear (5).

2. The hot pressing impregnation device for a carbon fiber prepreg production line according to claim 1, characterized in that: The conveying and cutting structure comprises a conveyor belt (23), wherein the conveyor belt (23) is installed on the upper surface of the support seat (22), and the plate (24) is in conflict with the upper end of the conveyor belt (23).

3. The hot pressing impregnation device for a carbon fiber prepreg production line according to claim 2, characterized in that: Two connecting rods (32) are symmetrically connected to one side of the two support plates (1) for rotation. A cutting knife (28) is fixed between the two connecting rods (32), and the cutting knife (28) can contact the plate (24). The outer wall of the support plate (1) is fixedly connected to a motor three (27), and the output end of the motor three (27) is fixedly connected to the connecting rod (32).

4. The hot pressing impregnation device for a carbon fiber prepreg production line according to claim 1, characterized in that: The driving structure comprises a motor 1 (11), wherein the motor 1 (11) is fixedly connected to the outer wall of the support plate (1), and the output end of the motor 1 (11) is fixedly connected to a cross pin (71).

5. The hot pressing impregnation device for a carbon fiber prepreg production line according to claim 4, characterized in that: The elastic locking structure includes a coupling (6), wherein the coupling (6) is fixedly connected to a side of the gear (5) away from the support plate (1), the outer wall of the cross pin (71) is slidably connected to the coupling (7), and the coupling (7) can be plugged into the coupling (6), a spring (8) is fixedly connected between the coupling (6) and the coupling (7), and the outer wall of the coupling (7) is fixedly connected to a positioning plate (9), and the side surfaces of both ends of the positioning plate (9) are symmetrically provided with sliding grooves (10), and the sliding grooves (10) can conflict with the sleeve (29).

6. The hot pressing impregnation device for a carbon fiber prepreg production line according to claim 1, characterized in that: The piston structure comprises a hydraulic chamber (12), wherein the hydraulic chamber (12) is movably connected between two sleeves (29), and the inner wall of the hydraulic chamber (12) is symmetrically slidably connected to two piston rods (15).

7. The hot pressing impregnation device for a carbon fiber prepreg production line according to claim 6, characterized in that: The threaded drive structure includes two internal threaded tubes (17), which are symmetrically installed at both ends of the hydraulic chamber (12). The inner wall of each internal threaded tube (17) is rotatably connected to a threaded rod (16) fixed to the piston rod (15), and each threaded rod (16) is fixed to a sleeve (29) at a corresponding position. A square groove (19) is provided at one end of the threaded rod (16) away from the hydraulic chamber (12), and a square block (18) is slidably connected to the inner wall of the square groove (19). The outer wall of the support plate (1) is fixed to two sliding seats (26), and a support seat (33) is slidably connected between the sliding seats (26). Motor 2 (20) is fixed to the support seat (33), and the output end of motor 2 (20) is fixed to the square block (18).

8. The hot pressing impregnation device for a carbon fiber prepreg production line according to claim 1, characterized in that: A plurality of positioning blocks (30) are installed in a row on the circumference of the inner wall of the positioning hole (31), and the positioning blocks (30) are rotatably connected to the outer wall of the sleeve (29). A plurality of ratchet pawls (21) are installed at equal distances on the outer wall of one end of the sleeve (29) close to the support plate (1), and each ratchet pawl (21) can interfere with the positioning block (30) at a corresponding position.

Images