Hot pressing device for carbon fiber pultrusion plate

Abstract

The invention discloses a hot pressing device for a carbon fiber pultrusion plate, and relates to the technical field of plate processing equipment. According to the technical scheme, the device is characterized by comprising a plurality of heat preservation boxes, a lower extrusion roller is rotationally connected between the inner walls of the two sides of each heat preservation box, an upper extrusion roller is further arranged in the heat preservation box and located above the lower extrusion roller, and a feeding port and a discharging port are formed in the other two sides of each heat preservation box; the driving assembly is used for driving each upper extrusion roller to ascend and descend, and the heating assembly is used for heating the heat preservation box, the upper extrusion rollers and the lower extrusion rollers. The invention aims to provide a hot pressing device for a carbon fiber pultrusion plate.

Description

Technical Field

[0001] The invention relates to plate processing equipment, and more particularly to a hot pressing device for carbon fiber pultruded plates. Background Art

[0002] Pultrusion is a highly automated continuous process dedicated to the manufacture of composite profiles, among which the main beam of wind turbine blades is mainly manufactured by pultrusion. Since the working environment of wind turbine blades is relatively harsh and the requirements are high, carbon fiber is usually the best reinforcement material for lightweight and high-performance profiles. Therefore, the production equipment of carbon fiber pultruded sheet for wind turbine blade main beam is developed accordingly.

[0003] In the production process, extrusion equipment is needed to extrude the sheet material. Existing extrusion equipment usually requires multiple extrusion modules, and the temperature of each extrusion module is controlled separately so that the temperature of each extrusion module gradually increases along the conveying direction of the sheet material. Since the temperature and extrusion work of each extrusion module need to be controlled separately, the cost is high and the operation is complicated.

[0004] Therefore, a new technical solution is urgently needed to solve the above technical problems. Summary of the invention

[0005] In view of the deficiencies in the prior art, an object of the present invention is to provide a hot pressing device for carbon fiber pultruded plates.

[0006] The above technical purpose of the present invention is achieved through the following technical scheme: a hot pressing device for carbon fiber pultruded plates, comprising a plurality of insulation boxes, each of which has a lower extrusion roller rotatably connected between the inner walls on both sides, an upper extrusion roller is also arranged above the lower extrusion roller in the insulation box, and a feed port and a discharge port are provided on the other two sides of the insulation box, and also includes a driving component for driving each of the upper extrusion rollers to rise and fall, and a heating component for heating the insulation box, the upper extrusion roller and the lower extrusion roller.

[0007] The present invention is further configured as follows: vertical first sliding grooves are provided on the inner walls on both sides of the thermal insulation box, a first sliding block is slidably connected in the first sliding groove, both ends of the upper extrusion roller are rotatably connected between the two first sliding blocks, a connecting rod is provided at the bottom of the first sliding block, a connecting groove for the connecting rod to be inserted and slidably connected is provided at the bottom of the first sliding groove, a spring is provided between the bottom end of the connecting groove and the bottom end of the connecting rod, horizontal second sliding grooves are provided on the inner walls on both sides of the thermal insulation box at the top of the first sliding groove, a second sliding block is slidably connected in the second sliding groove, the bottom of the second sliding block is parallel to and abuts against the top of the first sliding block, and also includes a driving member for driving the second sliding block to slide along the second sliding groove.

[0008] The present invention is further configured as follows: the driving member includes a driving rod, and each of the two sides of the incubator is provided with a through groove for the driving rod to pass through and rotate. The driving rod passes through and is threadedly connected to the second sliding block in each incubator, and one end of the driving rod is rotatably connected to the inner wall of the incubator located at the end, and the other end thereof passes through and extends out of the incubator located at the other end.

[0009] The present invention is further configured as follows: a driven gear is provided at the end of the driving rod extending out of the thermal insulation box, a guide rail is horizontally provided on the outer wall of the thermal insulation box below the driven gear, a guide groove is provided on the upper surface of the guide rail along its length direction, a rack meshing with the driven gear is slidably connected in the guide groove, a motor is also provided on the guide rail, and a driving gear meshing with the rack is provided on the output shaft of the motor.

[0010] The present invention is further configured as follows: the upper extrusion roller and the lower extrusion roller include an extrusion roller body and connecting parts at both ends thereof, a heat conduction cavity is provided inside the extrusion roller body, a guide groove connected to the heat conduction cavity is provided on the connecting part, a first rotating groove is provided for the connecting part to be inserted and rotatably connected, a guide hole connected to the inside of the heat preservation box is provided on one side of the heat preservation box, the guide groove and the guide hole are coaxially arranged in the vertical direction, when the driving component drives the upper driving roller to descend for extrusion, the guide groove is connected to the guide hole, the heating component includes a first guide pipe arranged between two adjacent heat preservation boxes, both ends of the first guide pipe are connected to the guide holes of adjacent heat preservation boxes, the guide holes on the other side of the heat preservation boxes at both ends are respectively connected to a first air intake pipe and a first exhaust pipe, and the first air intake pipe and the first exhaust pipe are connected to a heating device and an air pump.

[0011] The present invention is further configured as follows: second rotating grooves for the connecting portion of the second extrusion roller to pass through and rotatably connect are opened on both sides of the thermal insulation box, and the heating assembly also includes a second guide pipe, both ends of the second guide pipe are connected to the second rotating grooves of the adjacent thermal insulation box, and the second air intake pipe and the second exhaust pipe are respectively connected to the second rotating grooves on the other side of the thermal insulation boxes at both ends, and the second air intake pipe and the second exhaust pipe are connected to the heating device and the air pump.

[0012] The present invention has the following beneficial effects: during the processing, the carbon fiber sheet passes through each insulation box in turn and passes between the upper extrusion roller and the lower extrusion roller. Before processing, the inside of the insulation box is preheated by the heating component. After the preheating is completed, the upper extrusion rollers are driven downward by the driving component to extrude and shape the sheet. At the same time, the upper extrusion rollers and the lower extrusion rollers are heated by the heating component. While the carbon fiber sheet moves along the production line, it is hot-pressed and shaped. The device can operate multiple insulation boxes at the same time, which is convenient to operate and reduces the overall cost of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic diagram of the three-dimensional structure of this embodiment;

[0014] Figure 2 Schematic diagram of the internal structure of the thermal insulation box of this embodiment;

[0015] Figure 3 for Figure 2 A partial enlarged schematic diagram of the middle A part;

[0016] Figure 4 It is a schematic diagram of the cross-sectional structure of the heat preservation box;

[0017] Figure 5 for Figure 1 A partial enlarged schematic diagram of the middle B part;

[0018] Figure 6 Schematic diagram of the cross-sectional structure of the upper squeezing roller and the lower squeezing roller of this embodiment;

[0019] Figure 7 is a schematic structural diagram of the first sliding block of this embodiment;

[0020] Description of the drawings: 1. Insulation box; 2. Lower extrusion roller; 3. Upper extrusion roller; 4. Feed port; 5. Discharge port; 6. First sliding groove; 7. First sliding block; 8. Connecting rod; 9. Connecting groove; 10. Spring; 11. Second sliding groove; 12. Second sliding block; 13. Driving rod; 14. Through groove; 15. Threaded groove; 16. Driven gear; 17 Guide rail; 18. Guide groove; 19. Rack; 20. Motor; 21. Driving gear; 22. Extrusion roller body; 23. Connecting part; 24. Heat conduction cavity; 25. Guide groove; 26. First rotating groove; 27. Guide hole; 28. First guide pipe; 29. ​​First air inlet pipe; 30. First exhaust pipe; 31. Second rotating groove; 32. Second guide pipe; 33. Second air inlet pipe; 34. Second exhaust pipe. DETAILED DESCRIPTION

[0021] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0022] The same parts are denoted by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings, and the words "bottom" and "top", "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0023] As shown in the figure, a hot pressing device for carbon fiber pultruded plates includes a plurality of insulation boxes 1, a lower extrusion roller 2 is rotatably connected between the inner walls on both sides of each insulation box 1, an upper extrusion roller 3 is also arranged above the lower extrusion roller 2 in the insulation box 1, a feed port 4 and a discharge port 5 are provided on the other two sides of the insulation box 1, and also includes a driving component for driving each upper extrusion roller 3 to rise and fall, and a heating component for heating the insulation box 1, the upper extrusion roller 3 and the lower extrusion roller 2.

[0024] During the processing, the carbon fiber sheet passes through each insulation box 1 in turn, and passes between the upper extrusion roller 3 and the lower extrusion roller 2. Before processing, the inside of the insulation box 1 is preheated by the heating component. After the preheating is completed, the upper extrusion rollers 3 are driven downward by the driving component to extrude and shape the sheet. At the same time, the upper extrusion rollers 3 and the lower extrusion rollers 2 are heated by the heating component. While the carbon fiber sheet moves along the production line, it is hot-pressed and shaped. The device can operate multiple insulation boxes 1 at the same time, which is convenient for operation and reduces the overall cost of the equipment.

[0025] A vertical first sliding groove 6 is provided on the inner walls on both sides of the thermal insulation box 1, and a first sliding block 7 is slidably connected in the first sliding groove 6. Both ends of the upper extrusion roller 3 are rotatably connected between the two first sliding blocks 7. A connecting rod 8 is provided at the bottom of the first sliding groove 6. A connecting groove 9 is provided at the bottom of the first sliding groove 6 for the connecting rod 8 to be inserted and slidably connected. A spring 10 is provided between the bottom end of the connecting groove 9 and the bottom end of the connecting rod 8. A horizontal second sliding groove 11 is provided on the inner walls on both sides of the thermal insulation box 1 at the top of the first sliding groove 6. A second sliding block 12 is slidably connected in the second sliding groove 11. The bottom of the second sliding block 12 is parallel to and abuts against the top of the first sliding block 7 and also includes a driving member for driving the second sliding block 12 to slide along the second sliding groove 11.

[0026] The second sliding block 12 is driven by the driving member to slide along the second sliding groove 11, and under the action of its bottom inclined surface, the first sliding block 7 is driven to slide downward along the first sliding groove 6, and the spring 10 is compressed to drive the upper squeezing roller 3 to move downward to squeeze the carbon fiber sheet.

[0027] The driving member includes a driving rod 13. Both sides of each heat preservation box 1 are provided with through grooves 14 for the driving rod 13 to pass through and rotate. The second sliding block 12 is provided with a thread groove 15. The driving rod 13 passes through and is threadedly connected to the thread groove 15. The thread direction of the driving rod 13 and each second sliding block 12 are the same, and the pitch is consistent. One end of the driving rod 13 is rotatably connected to the inner wall of the heat preservation box 1 at the end, and the other end thereof passes through and extends out of the heat preservation box 1 at the other end. By rotating the driving rod 13, the second sliding block 12 is driven to slide along the second sliding groove 11.

[0028] The end of the driving rod 13 extending out of the heat preservation box 1 is provided with a driven gear 16, and the outer wall of the heat preservation box 1 is provided with a horizontal guide rail 17 below the driven gear 16, and the upper surface of the guide rail 17 is provided with a guide groove 18 along its length direction, and a rack 19 meshing with the driven gear 16 is slidably connected in the guide groove 18, and a motor 20 is also provided on the guide rail 17, and the output shaft of the motor 20 is provided with a driving gear 21 meshing with the rack 19. The driving gear 21 is driven by the motor 20 to drive the rack 19 to slide along the guide groove 18, so as to drive the driven gear 16 and the driving rod 13 to rotate.

[0029] The upper squeeze roller 3 and the lower squeeze roller 2 include a squeeze roller body 22 and connecting parts 23 at both ends thereof, a heat conduction cavity 24 is provided inside the squeeze roller body 22, a guide groove 25 connected to the heat conduction cavity 24 is provided on the connecting part 23, a first rotating groove 26 is provided for the connecting part 23 to be inserted and rotatably connected, a guide hole 27 connected to the inside of the heat preservation box 1 is provided on one side of the heat preservation box 1, the guide groove 25 and the guide hole 27 are coaxially arranged in the vertical direction, and the driving assembly drives the upper drive roller to descend into When extrusion is performed, the guide groove 25 is connected to the guide hole 27, and the heating component includes a first guide pipe 28 arranged between two adjacent insulation boxes 1, and both ends of the first guide pipe 28 are connected to the guide holes 27 of the adjacent insulation boxes 1, and the other guide holes 27 located at the insulation boxes 1 at both ends are respectively connected to the first air intake pipe 29 and the first exhaust pipe 30, and the first air intake pipe 29 and the first exhaust pipe 30 are connected to the heating device and the air pump (the heating device and the air pump are existing technologies and are not described in detail in this embodiment).

[0030] The heat transfer medium is a gas. In this embodiment, nitrogen is selected as the heat transfer medium. Before the extrusion work, the heated nitrogen is transported to the first air inlet pipe 29 through the heating device and the air pump. At this time, the guide hole 27 is connected to the interior of the heat preservation box 1, and the heated nitrogen is directly transported to the heat preservation box 1 at one end, and is transported to the first guide pipe 28 from the guide hole 27 on the other side, so that the heated nitrogen is transported to each heat preservation box 1 in turn, and is finally discharged from the first exhaust pipe 30, and is re-sent to the heating device for heating, thereby preheating each heat preservation box 1.

[0031] After preheating is completed, the driving assembly drives each upper extrusion roller 3 to move downward, and finally makes the guide hole 27 connected to the guide groove 25. At this time, the hot nitrogen is sent into the heat conduction cavity 24 of the upper extrusion roller 3, and is sent into the heat conduction cavity 24 of each upper extrusion roller 3 in turn through the first guide pipe 28, so that each upper extrusion roller 3 can be heated, and it can be ensured that the temperature of the upper extrusion roller 3 is reduced in turn, and the carbon fiber sheet is transported in the direction of increasing temperature in turn to ensure its processing effect.

[0032] Second rotating grooves 31 are provided on both sides of the thermal insulation box 1 for the connecting portion 23 of the second extrusion roller to pass through and be rotatably connected. The heating assembly also includes a second guide pipe 32. Both ends of the second guide pipe 32 are connected to the second rotating grooves 31 of the adjacent thermal insulation box 1. The second air intake pipe 33 and the second exhaust pipe 34 are respectively connected to the second rotating grooves 31 on the other side of the thermal insulation boxes 1 at both ends. The second air intake pipe 33 and the second exhaust pipe 34 are connected to the heating device and the air pump.

[0033] The hot nitrogen enters the second rotating groove 31 through the second air inlet pipe, and passes into the heat conduction cavity 24 of the lower extrusion roller 2, and then passes into the heat conduction cavity 24 of each lower extrusion roller 2 in sequence through the second flow guide pipe, thereby heating the lower extrusion roller 2, and its temperature is the same as that of the upper extrusion roller 3 and decreases in sequence.

[0034] The specific embodiments are merely explanations of the present invention and are not limitations of the present invention. After reading this specification, those skilled in the art may make modifications to the embodiments without any creative contribution as needed. However, such modifications are protected by the patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A hot pressing device for carbon fiber pultruded sheet, characterized in that: The invention comprises a plurality of heat preservation boxes (1), wherein a lower squeezing roller (2) is rotatably connected between the inner walls on both sides of each heat preservation box (1), an upper squeezing roller (3) is arranged above the lower squeezing roller (2) in the heat preservation box (1), a feed inlet (4) and a discharge outlet (5) are arranged on the other two sides of the heat preservation box (1), and a driving component for driving each upper squeezing roller (3) to rise and fall, and a heating component for heating the heat preservation box (1), the upper squeezing roller (3) and the lower squeezing roller (2).

2. A hot pressing device for carbon fiber pultruded sheet according to claim 1, characterized in that: The inner walls on both sides of the thermal insulation box (1) are provided with vertical first sliding grooves (6), and a first sliding block (7) is slidably connected in the first sliding groove (6). The two ends of the upper extrusion roller (3) are rotatably connected between the two first sliding blocks (7). A connecting rod (8) is arranged at the bottom of the first sliding block (7). A connecting groove (9) for inserting and slidably connecting the connecting rod (8) is arranged at the bottom of the first sliding groove (6). A spring (10) is arranged between the bottom end of the connecting groove (9) and the bottom end of the connecting rod (8). The inner walls on both sides of the thermal insulation box (1) are provided with horizontal second sliding grooves (11) at the top of the first sliding grooves (6). A second sliding block (12) is slidably connected in the second sliding grooves (11). The bottom of the second sliding block (12) is parallel to and abuts against the top of the first sliding block (7) and also includes a driving member for driving the second sliding block (12) to slide along the second sliding groove (11).

3. A hot pressing device for carbon fiber pultruded sheet according to claim 2, characterized in that: The driving member comprises a driving rod (13), and each of the two sides of the thermal insulation box (1) is provided with a through groove (14) for the driving rod (13) to pass through and rotate. The driving rod (13) passes through and is threadedly connected to a second sliding block (12) in each thermal insulation box (1). One end of the driving rod (13) is rotatably connected to the inner wall of the thermal insulation box (1) at the end, and the other end thereof passes through and extends out of the thermal insulation box (1) at the other end.

4. A hot pressing device for carbon fiber pultruded sheet according to claim 3, characterized in that: A driven gear (16) is arranged at the end of the driving rod (13) extending out of the heat preservation box (1); a guide rail (17) is arranged horizontally on the outer wall of the heat preservation box (1) below the driven gear (16); a guide groove (18) is provided on the upper surface of the guide rail (17) along its length direction; a rack (19) meshing with the driven gear (16) is slidably connected in the guide groove (18); a motor (20) is also arranged on the guide rail (17); and an output shaft of the motor (20) is provided with a driving gear (21) meshing with the rack (19).

5. The hot pressing device for carbon fiber pultruded plate according to claim 1, characterized in that: The upper squeezing roller (3) and the lower squeezing roller (2) comprise a squeezing roller body (22) and connecting parts (23) at both ends thereof; a heat conduction cavity (24) is provided inside the squeezing roller body (22); the connecting part (23) is provided with a guide groove (25) connected to the heat conduction cavity (24); the first sliding block (7) is provided with a first rotation groove (26) for the connecting part (23) to be inserted and rotatably connected; a guide hole (27) connected to the inside of the heat preservation box (1) is provided on one side of the heat preservation box (1); the guide groove (25) and the guide hole (27) are coaxial in the vertical direction. It is arranged that when the driving component drives the upper driving roller to descend to perform extrusion work, the guide groove (25) is connected to the guide hole (27), and the heating component comprises a first guide pipe (28) arranged between two adjacent insulation boxes (1), the two ends of the first guide pipe (28) are connected to the guide holes (27) of the adjacent insulation boxes (1), and the guide holes (27) on the other side of the insulation boxes (1) at the two ends are respectively connected to the first air intake pipe (29) and the first exhaust pipe (30), and the first air intake pipe (29) and the first exhaust pipe (30) are connected to the heating device and the air pump.

6. A hot pressing device for carbon fiber pultruded sheet according to claim 5, characterized in that: The two sides of the heat preservation box (1) are provided with second rotating grooves (31) for the connecting portion (23) of the second squeezing roller to pass through and be rotatably connected. The heating component also includes a second guide pipe (32). The two ends of the second guide pipe (32) are connected to the second rotating grooves (31) of the adjacent heat preservation box (1). The second rotating grooves (31) on the other side of the heat preservation box (1) at the two ends are respectively connected to a second air intake pipe (33) and a second air exhaust pipe (34). The second air intake pipe (33) and the second air exhaust pipe (34) are connected to the heating device and the air pump.

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