A fan blade sandwich core processing system and method

Abstract

The application relates to a fan blade sandwich core processing system and a processing method, which comprises a belt conveyor and a cutting platform plate arranged in sequence, a butt joint device for butt joint of sandwich core piece groups is arranged on the belt conveyor, and a cutting device for cutting of the long sandwich core after butt joint is arranged on the cutting platform plate; the cutting device comprises a gantry sliding forward and backward, a transverse sliding frame sliding left and right on the gantry, and a lifting frame vertically sliding on the transverse sliding frame, a vertical rotating frame is connected to the lower end of the lifting frame through a vertical rotating joint, a horizontal rotating frame is connected to the vertical rotating frame through a horizontal rotating joint, a cutting knife motor is fixedly connected to the horizontal rotating frame, a disc cutting knife is fixedly connected to the rotating shaft of the cutting knife motor, the application can sequentially connect multiple sandwich core piece groups, then cut the long sandwich core, so that the long sandwich core becomes the required length and shape, the whole process is automatically completed, the processing efficiency is improved, and the cutting effect is good.

Description

Technical Field

[0001] This invention relates to the field of wind turbine blade sandwich core material processing technology, specifically to a wind turbine blade sandwich core material processing system and processing method. Background Technology

[0002] In the production process of wind turbine blades, sandwich core materials are used as raw materials and processed through multiple processes to become the inner lining filling material of wind turbine blades. Sandwich core materials are generally made of materials such as balsa wood, PVC / PET, and foam. The inner wall of the wind turbine blade has an irregular curved surface structure. Generally, multiple sandwich core materials are bonded to a shaping net, and then the shaping net and sandwich core materials are bonded to the inner lining of the wind turbine blade, so that they can fit with the inner wall of the wind turbine blade.

[0003] The initial processed product after the sandwich core material is bonded to the shaping mesh is a segmented product called a sandwich core material sheet group. Multiple sandwich core material sheets need to be connected in sequence to form a long sandwich core material. Then, the long sandwich core material is cut to the required length and shape. Currently, the entire processing flow of long sandwich core material has a low degree of automation. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a wind turbine blade sandwich core material processing system and method.

[0005] This invention is achieved through the following technical solution: a wind turbine blade sandwich core material processing system is provided, comprising a belt conveyor and a cutting platform plate arranged sequentially. The belt conveyor is equipped with a docking device for docking sandwich core material sheets, and the cutting platform plate is equipped with a cutting device for cutting the docked long strips of sandwich core material. The cutting device includes a gantry frame that slides back and forth, a transverse frame that slides left and right on the gantry frame, and a lifting frame that slides vertically on the transverse frame. The lower end of the lifting frame is connected to a vertical rotating frame via a vertical rotating joint, and a horizontal rotating frame is connected to the vertical rotating frame via a horizontal rotating joint. A cutting motor is fixedly connected to the horizontal rotating frame, and a disc cutting blade is fixedly connected to the rotating shaft of the cutting motor.

[0006] In this solution, multiple sandwich core material sheets are connected sequentially to form long sandwich core materials. Then, the long sandwich core materials are cut. During cutting, the disc cutter moves by moving the gantry back and forth and the transverse frame left and right. The vertical rotating joint drives the vertical rotating frame to rotate along the vertical axis, and the horizontal rotating joint drives the horizontal rotating frame to rotate along the horizontal axis, thereby adjusting the angle of the disc cutter. The lifting frame lowers to bring the disc cutter into contact with the long sandwich core materials, and the cutter motor drives the disc cutter to rotate for cutting.

[0007] As an optimization, a suction box is installed below the cutting platform plate, forming a suction chamber with the cutting platform plate. An air extraction pipe is connected to the suction box, and multiple suction holes are opened on the cutting platform plate. In this design, the suction box is evacuated, and the long strip of sandwich core material is suctioned tightly onto the cutting platform plate through the suction holes.

[0008] As an optimization, the cutting platform plate is made of wood and is detachably connected to the suction box. In this design, the cutting platform plate is made of wood and is easy to disassemble and replace.

[0009] As an optimization, a travel motor is installed on the gantry frame, and a travel gear is mounted on the shaft of the travel motor. The travel gear meshes with a fixed travel rack. In this design, the travel motor drives the gantry frame to move back and forth via the gear and rack.

[0010] As an optimization, a transverse motor is mounted on the transverse frame, and a transverse gear is mounted on the shaft of the transverse motor. The transverse gear meshes with a transverse rack fixed to the gantry frame. In this design, the transverse motor drives the transverse frame to move left and right via the gear and rack.

[0011] As an optimization, a vertical lifting cylinder is fixedly connected to the transverse frame, and the telescopic shaft of the lifting cylinder is connected to the lifting frame. In this solution, the telescopic movement of the lifting cylinder enables the lifting of the lifting frame.

[0012] As an optimization, the docking device includes a movable frame that slides along the conveyor frame along the conveying direction of the belt conveyor. The movable frame includes a support plate supported below the upper conveyor belt, columns fixed to both ends of the support plate, and a crossbeam connecting the upper ends of the two columns. A downward-facing pressing cylinder is mounted on the crossbeam. A pressure plate located above the upper conveyor belt is fixed to the telescopic shaft of the pressing cylinder, and an electric heating element is fixed to the lower end face of the pressure plate. Multiple sandwich core material sheets are sequentially laid on the belt conveyor and docked at the ends. A shaping net covers the docking position. The belt conveyor transports the sandwich core material sheets forward. When the docking position moves above the support plate, the pressing cylinder is activated to drive the pressure plate to press against the covering shaping net, and the two sandwich core material sheets are docked by heat melting through the electric heating element, thus docking multiple sandwich core material sheets into a continuous state. The position of the movable frame is adjusted according to the size of a single sandwich core material sheet.

[0013] As an optimization, the upper surface of the conveyor frame has guide holes extending along the conveying direction, and connecting bolts pass through the guide holes to connect with the movable frame. Therefore, the position of the movable frame can be adjusted by loosening the connecting bolts.

[0014] A method for processing sandwich core material for wind turbine blades includes the following steps:

[0015] a. Multiple sandwich core material sheets are laid sequentially on a belt conveyor and joined at the ends. They are then joined together by a joining device to form a continuous long strip of sandwich core material, which is then conveyed to a cutting platform plate and cut by a cutting device.

[0016] b. When the docking device is working, the belt conveyor will transport the sandwich core material sheet group forward. When the docking position moves to the top of the pallet, the pressing cylinder will be activated to drive the pressing plate to press against the covering shaping net, and the two sandwich core material sheet groups will be docked by the heat melting of the electric heating element.

[0017] c. When the cutting device is working, the long sandwich core material moves to the cutting platform plate. The suction box below the cutting platform plate is evacuated, and the long sandwich core material is sucked tightly onto the cutting platform plate through the suction holes. The gantry moves back and forth and the transverse frame moves left and right, driving the disc cutter to move. The vertical rotating joint drives the vertical rotating frame to rotate along the vertical axis, and the horizontal rotating joint drives the horizontal rotating frame to rotate along the horizontal axis, thereby adjusting the angle of the disc cutter. The lifting frame descends to bring the disc cutter into contact with the long sandwich core material, and the cutter motor drives the disc cutter to rotate for cutting.

[0018] The beneficial effects of the present invention are as follows: The wind turbine blade sandwich core material processing system and processing method of the present invention can connect multiple sandwich core material sheets in sequence to form long sandwich core materials, and then cut the long sandwich core materials to make them the required length and shape. The whole process is automated, which improves processing efficiency and has a good cutting effect. Attached Figure Description

[0019] Figure 1 This is a front view of the present invention;

[0020] Figure 2 This is a front view of the cutting device of the present invention;

[0021] Figure 3 This is a schematic diagram of the cutting process of the present invention;

[0022] Figure 4 This is a schematic diagram showing the result after the cutting process of this invention;

[0023] Figure 5 This is a front view of the docking device of the present invention;

[0024] Figure 6 This is a side view of the docking device of the present invention;

[0025] Figure 7 This is a top view of the pressure plate of the present invention;

[0026] Figure 8 For the present invention Figure 5 Sectional view of plane AA;

[0027] Figure 9 This is a schematic diagram of the connecting bolts of the present invention;

[0028] Figure 10 This is a schematic diagram of the card plate of the present invention;

[0029] As shown in the figure:

[0030] 1. Belt conveyor; 2. Pallet; 3. Column; 4. Beam; 5. Pressing cylinder; 6. Pressure plate; 7. Heating element; 8. Heat dissipation hole; 9. Connecting plate; 10. Square clamping plate; 11. Conveyor frame; 12. Upper conveyor belt; 13. Lower conveyor belt; 14. Intermediate conveyor; 15. Cutting platform plate; 16. Suction box; 17. Suction pipe; 18. Gantry frame; 19. Horizontal movement frame; 20. Lifting frame; 21. Vertical rotating frame; 22. Horizontal rotating frame; 23. Disc cutter; 24. Cutter motor; 25. Travel motor; 26. Travel gear; 27. Travel rack; 28. Horizontal movement motor; 29. ​​Horizontal movement gear; 30. Horizontal movement rack; 31. Lifting cylinder; 32. Vertical rotating joint; 33. Horizontal rotating joint. Detailed Implementation

[0031] To clearly illustrate the technical features of this solution, the following detailed implementation method will be used to explain the solution.

[0032] like Figures 1-10 As shown, a wind turbine blade sandwich core material processing system of the present invention includes a belt conveyor 1 and a cutting platform plate 15 arranged sequentially. The belt conveyor 1 is equipped with a docking device for docking sandwich core material sheets, and the cutting platform plate 15 is equipped with a cutting device for cutting the docked long strips of sandwich core material. In this embodiment, an intermediate conveyor 14 is also provided between the belt conveyor 1 and the cutting platform plate 15.

[0033] The cutting platform plate 15 is made of wood. A suction box 16 is installed below the cutting platform plate 15. The suction box 16 and the cutting platform plate 15 form a suction cavity. Multiple suction pipes 17 are connected to the suction box 16. Multiple suction holes are opened on the cutting platform plate 15. The suction holes are densely arranged to attract the sandwich core material above to the cutting platform plate 15.

[0034] The cutting platform plate 15 is detachably connected to the suction box 16. In this embodiment, bolt connection is used to facilitate the disassembly and replacement of the cutting platform plate 15.

[0035] The belt conveyor 1 includes conveyor frames 11 on both sides and rotating rollers located at both ends of the conveyor frames 11. The conveyor belt passes around the rotating rollers at both ends. The upper conveyor belt 12 conveys sandwich core material sheets, and the lower conveyor belt 13 is below the upper conveyor belt 12.

[0036] The docking device includes a movable frame that slides along the conveying direction of the belt conveyor 1 onto the conveyor frame 11. The movable frame includes a pallet 2 supported below the upper conveyor belt 12, columns 3 fixed to both ends of the pallet 2, and a crossbeam 4 connecting the upper ends of the two columns 3. The pallet 2 extends left and right along the conveying direction, and the lower end surface of the upper conveyor belt 12 is in contact with the upper end surface of the pallet 2 or the distance between them is less than 2 cm. The columns 3 are fixed to the left and right ends of the pallet 2.

[0037] A downward-facing clamping cylinder 5 is mounted on the crossbeam 4. The clamping cylinder 5 is bolted to the crossbeam 4. A pressure plate 6 located above the upper conveyor belt 12 is fixed to the telescopic shaft of the clamping cylinder 5. In this embodiment, there are two clamping cylinders 5 arranged left and right. The telescopic shafts of both clamping cylinders 5 are connected to the pressure plate 6.

[0038] In order to connect the pressure plate 6 with the telescopic shaft of the clamping cylinder 5, the pressure plate 6 has a threaded hole, the telescopic shaft of the clamping cylinder 5 is threadedly connected to the threaded hole, and a back nut is also installed on the telescopic shaft.

[0039] A heating element 7 is fixed to the lower end face of the pressure plate 6. The heating element 7 extends in the left-right direction, with a length close to the width of the upper conveyor belt 12, and is used to heat the shaping net to achieve thermal fusion bonding.

[0040] The pressure plate 6 has multiple heat dissipation holes 8. The multiple heat dissipation holes 8 are arranged in a horizontal arrangement, and the heat dissipation holes 8 are elongated holes extending from front to back.

[0041] In order to enable the forward and backward movement adjustment of the moving frame, the upper end face of the conveyor frame 11 is provided with a guide hole extending along the conveying direction, and the connecting bolt passes through the guide hole to connect with the moving frame.

[0042] Specifically, a connecting plate 9 located above the support plate 2 is fixedly connected to the side of the column 3. The connecting plate 9 is horizontally welded to the side of the column 3, and one connecting plate 9 is welded to each side of the column.

[0043] like Figure 8 As shown, the nuts of the connecting bolts are tightened onto the upper surface of the connecting plate 9. The connecting plate 9 and the support plate 2 form a clamping space adapted to the square clamping plate 10. The square clamping plate 10 cannot rotate within this clamping space. Figure 10 As shown, the square card plate 10 has card slots, such as... Figure 9 As shown, the connecting bolt has a groove plane on its side that matches the groove. The distance between the groove planes on both sides of the connecting bolt is equal to the width of the groove.

[0044] The movable frame can move back and forth, thereby adjusting the position of the movable frame according to the size of a single sandwich core sheet group. When adjusting, loosen the connecting bolts and rotate the nut on the connecting plate 9. The connecting bolts cannot be rotated under the action of the square clamping plate 10. After the movable frame moves to the appropriate position, tighten the connecting bolts.

[0045] like Figure 2 As shown, the cutting device includes a gantry frame 18 that slides back and forth, a transverse frame 19 that slides left and right on the gantry frame 18, and a lifting frame 20 that slides vertically on the transverse frame 19. The gantry frame 18 spans the cutting platform plate 15.

[0046] A travel motor 25 is mounted on the gantry frame 18, and a travel gear 26 is mounted on the shaft of the travel motor. The travel gear 26 meshes with a fixed travel rack 27. The travel rack 27 extends back and forth, thereby realizing the back and forth movement of the gantry frame 18.

[0047] A transverse motor 28 is mounted on the transverse frame 19, and a transverse gear 29 is mounted on the shaft of the transverse motor 28. The transverse gear 29 meshes with a transverse rack 30 fixed to the gantry frame 18. The transverse rack 30 extends left and right, thereby realizing the left and right movement of the transverse frame 19.

[0048] A vertical lifting cylinder 31 is fixedly connected to the transverse frame 19, and the telescopic shaft of the lifting cylinder 31 is connected to the lifting frame 20. This enables the lifting frame 20 to be raised and lowered.

[0049] The lower end of the lifting frame 20 is connected to a vertical rotating frame 21 via a vertical rotating joint 32. The vertical rotating joint 32 drives the vertical rotating frame 21 to rotate along the vertical axis, thereby adjusting the angle between the disc cutter 23 and the front-back direction.

[0050] A horizontal rotating frame 22 is connected to the vertical rotating frame 21 via a horizontal rotating joint 33. A cutter motor 24 is fixedly connected to the horizontal rotating frame 22, and a disc cutter 23 is fixedly connected to the rotating shaft of the cutter motor 24.

[0051] The horizontal rotating frame 22 rotates along a horizontal axis, thereby adjusting the angle between the disc cutter 23 and the horizontal direction. For example... Figure 3 As shown, the disc cutter 23 forms a 45-degree angle with the horizontal direction, cutting the upper surface of the long sandwich core material through cutting. Figure 4 The V-shaped groove shown.

[0052] A method for processing sandwich core material for wind turbine blades includes the following steps:

[0053] a. Multiple sandwich core material sheets are laid sequentially on belt conveyor 1 and joined at the ends. They are then joined into continuous long strips of sandwich core material by the joining device and conveyed to the cutting platform plate 15 for cutting by the cutting device.

[0054] b. When the docking device is working, the belt conveyor 1 will transport the sandwich core material sheet group forward. When the docking position moves above the pallet 2, the pressing cylinder 5 will be activated to drive the pressing plate 6 to press on the covering shaping net, and the two sandwich core material sheet groups will be docked by the heat melting through the electric heating element 7.

[0055] c. When the cutting device is working, the long sandwich core material moves onto the cutting platform plate 15. The suction box 16 below the cutting platform plate 15 is evacuated, and the long sandwich core material is sucked tightly onto the cutting platform plate 15 through the suction holes on the cutting platform plate 15. The gantry frame 18 moves back and forth and the transverse frame 19 moves left and right, driving the disc cutter 23 to move. The vertical rotating joint 32 drives the vertical rotating frame 21 to rotate along the vertical axis, and the horizontal rotating joint 33 drives the horizontal rotating frame 22 to rotate along the horizontal axis, thereby adjusting the angle of the disc cutter 23. The lifting frame 20 descends to bring the disc cutter 23 into contact with the long sandwich core material, and the cutter motor 24 drives the disc cutter 23 to rotate for cutting.

[0056] Of course, the above description is not limited to the examples above. Technical features not described in this invention can be implemented by or using existing technology, and will not be repeated here. The above embodiments and drawings are only used to illustrate the technical solutions of this invention and are not intended to limit this invention. This invention has been described in detail with reference to preferred embodiments. Those skilled in the art should understand that any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this invention do not depart from the spirit of this invention and should also fall within the scope of protection of the claims of this invention.

Claims

1. A system for processing sandwich core material for wind turbine blades, characterized in that: It includes a belt conveyor (1) and a cutting platform plate (15) arranged in sequence. The belt conveyor (1) is equipped with a docking device for docking sandwich core material sheets, and the cutting platform plate (15) is equipped with a cutting device for cutting the docked long strip sandwich core material. The cutting device includes a gantry frame (18) that slides back and forth, a transverse frame (19) that slides left and right on the gantry frame (18), and a lifting frame (20) that slides vertically on the transverse frame (19). The lower end of the lifting frame (20) is connected to a vertical rotating frame (21) through a vertical rotating joint (32). A horizontal rotating frame (22) is connected to the vertical rotating frame (21) through a horizontal rotating joint (33). A cutting motor (24) is fixedly connected to the horizontal rotating frame (22), and a disc cutting blade (23) is fixedly connected to the rotating shaft of the cutting motor (24). The docking device includes a movable frame that slides along the conveying direction of the belt conveyor (1) on the conveyor frame (11). The movable frame includes a pallet (2) supported below the upper conveyor belt (12), columns (3) fixed to both ends of the pallet (2), and a crossbeam (4) connecting the upper ends of the two columns (3). A pressing cylinder (5) is mounted on the crossbeam (4) facing downward. A pressure plate (6) located above the upper conveyor belt (12) is fixed to the telescopic shaft of the pressing cylinder (5). An electric heating element (7) is fixed to the lower end face of the pressure plate (6).

2. The wind turbine blade sandwich core material processing system according to claim 1, characterized in that: The cutting platform plate (15) is equipped with a suction box (16) below it. The suction box (16) and the cutting platform plate (15) form a suction cavity. The suction box (16) is connected to a suction pipe (17). The cutting platform plate (15) has multiple suction holes.

3. The wind turbine blade sandwich core material processing system according to claim 2, characterized in that: The cutting platform plate (15) is made of wood and is detachably connected to the suction box (16).

4. The wind turbine blade sandwich core material processing system according to claim 1, characterized in that: A travel motor (25) is installed on the gantry frame (18), and a travel gear (26) is installed on the shaft of the travel motor. The travel gear (26) meshes with a fixed travel rack (27).

5. The wind turbine blade sandwich core material processing system according to claim 1, characterized in that: A transverse motor (28) is installed on the transverse frame (19), and a transverse gear (29) is installed on the shaft of the transverse motor (28). The transverse gear (29) meshes with a transverse rack (30) fixed on the gantry frame (18).

6. The wind turbine blade sandwich core material processing system according to claim 1, characterized in that: A vertical lifting cylinder (31) is fixedly connected to the transverse frame (19), and the telescopic shaft of the lifting cylinder (31) is connected to the lifting frame (20).

7. The wind turbine blade sandwich core material processing system according to claim 1, characterized in that: The upper end face of the conveyor frame (11) has a guide hole extending along the conveying direction, and the connecting bolt passes through the guide hole to connect with the movable frame.

8. A method for processing sandwich core material for wind turbine blades using the processing system described in claim 2, characterized in that, Includes the following steps: a. Multiple sandwich core material sheets are laid sequentially on the belt conveyor (1) and the ends are joined together. After being joined together by the joining device to form a continuous long strip of sandwich core material, it is conveyed to the cutting platform plate (15) and cut by the cutting device. b. When the docking device is working, the belt conveyor (1) will transport the sandwich core material sheet group forward. When the docking position moves to the top of the pallet (2), the pressing cylinder (5) will be activated to drive the pressing plate (6) to press on the covering shaping net, and the two sandwich core material sheet groups will be docked by the electric heating element (7) through heat melting. c. When the cutting device is working, the long sandwich core material moves to the cutting platform plate (15), the suction box (16) under the cutting platform plate (15) is evacuated, and the long sandwich core material is sucked tightly onto the cutting platform plate (15) through the suction hole on the cutting platform plate (15); the gantry frame (18) moves back and forth and the transverse frame (19) moves left and right to drive the disc cutter (23) to move; the vertical rotating joint (32) drives the vertical rotating frame (21) to rotate along the vertical axis, and the horizontal rotating joint (33) drives the horizontal rotating frame (22) to rotate along the horizontal axis, thereby adjusting the angle of the disc cutter (23); the lifting frame (20) descends to make the disc cutter (23) contact the long sandwich core material, and the cutter motor (24) drives the disc cutter (23) to rotate for cutting.

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