Pultrusion plate forming device for wind power blade plate

Abstract

The utility model relates to the technical field of plate pultrusion, and discloses a wind power blade plate pultrusion plate forming device which comprises a transition table, an installation groove is formed in the top face of the transition table, a pultrusion structure used for pultrusion of plates is arranged in the installation groove, and the pultrusion structure comprises an installation frame arranged in the installation groove in a sliding mode. An upper pressing plate and a lower pressing plate are arranged in the mounting frame, an extrusion groove is formed between the upper pressing plate and the lower pressing plate, two inclined holes are formed in one side of the upper pressing plate and are oppositely arranged, two opposite plates are arranged on one side of the mounting frame, and rolling shafts are rotationally arranged on one sides of the two opposite plates. Through the arrangement of the pultrusion structure, an operator places a plate on the device, only a hand wheel needs to be rotated to drive the upper pressing plate to clamp the plate and conduct extrusion forming, the motor drives the installation frame to move forwards to achieve pultrusion, clamping is loosened after forming, the plate is taken out, operation is easy, convenient and efficient, clamping, forming and taking out of the plate are conveniently and rapidly completed, and the production efficiency is improved. And the pultrusion efficiency is obviously improved.

Description

Technical Field

[0001] This utility model relates to the field of sheet metal pultrusion technology, and in particular to a pultrusion sheet metal forming device for wind turbine blade sheets. Background Technology

[0002] In recent years, with the rapid development of the global wind power industry, wind turbine blades have placed higher demands on structural materials in terms of strength, lightweighting, and environmental recyclability. Polyester-based foam core materials, due to their good mechanical properties, thermal stability, and recyclability, have gradually replaced traditional materials such as PVC and balsa wood, becoming the core material in the composite material structure of wind turbine blades. Currently, the processing of wind turbine blade sheets in the market mainly adopts processes such as extrusion, hot pressing, and cutting. In the continuous production process, pultrusion molding technology has become one of the key processes for sheet forming due to its high product density, good dimensional stability, and high production efficiency.

[0003] An existing pultrusion forming equipment for wind turbine blades (Announcement No.: CN221756912U) has at least the following drawbacks: Although the above device uses upper and lower pressure plates for clamping and a guide structure to achieve traction pultrusion of the profile, its clamping structure relies on the synchronous rotation of two screw rods, which is time-consuming and labor-intensive to adjust and has low efficiency. Therefore, we propose this utility model. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a pultrusion forming device for wind turbine blade plates.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A pultrusion forming device for wind turbine blade sheet includes a transition table. The top surface of the transition table has an installation groove. The installation groove is provided with a pultrusion structure for pultruding the sheet. The pultrusion structure includes an installation frame slidably disposed in the installation groove. An upper pressure plate and a lower pressure plate are disposed inside the installation frame. An extrusion groove is provided between the upper pressure plate and the lower pressure plate. Two oblique holes are provided on one side of the upper pressure plate and are arranged opposite to each other. Two opposing plates are provided on one side of the installation frame. Rollers are rotatably disposed on one side of each of the two opposing plates. The two rollers are slidably disposed inside the two oblique holes respectively.

[0007] As a further embodiment of this utility model, a bidirectional lead screw is fixed on the top surface of the mounting frame. The positive and negative threads of the bidirectional lead screw are respectively connected to the two mating plates. A handwheel is fixed at one end of the bidirectional lead screw. A slot hole is opened on the bottom surface of the mounting groove. A screw is rotatably installed inside the slot hole. The screw is threadedly connected to the mounting frame. A motor is fixed on one side of the transition platform. The output end of the motor passes through one side of the transition platform and is fixed to one end of the screw.

[0008] As a further embodiment of this utility model, limit grooves are provided on both sides of the inner wall of the mounting groove, and the mounting frame is slidably disposed within the limit grooves.

[0009] As a further embodiment of this utility model, guide grooves are provided on both sides of the inner wall of the mounting frame, the upper pressure plate is slidably disposed inside the guide groove, and the lower pressure plate is fixed inside the mounting frame.

[0010] As a further embodiment of this utility model, a guide rod is fixed on the top surface of the mounting frame, and the guide rod is slidably inserted into the two opposing plates.

[0011] As a further embodiment of this utility model, the bottom surface of the mounting frame is fitted with the inner bottom surface of the mounting groove.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] This sheet metal pultrusion device, through its pultrusion structure, allows operators to place the sheet metal on the device, simply rotate the handwheel to drive the upper pressure plate to clamp the sheet metal and extrude it into shape, and the motor drives the mounting frame to move forward to complete the pultrusion. After forming, the clamps are released and the sheet metal is removed. The operation is simple and efficient, facilitating the quick clamping, forming and removal of the sheet metal, and significantly improving pultrusion efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a pultrusion forming device for wind turbine blade sheet proposed in this utility model;

[0015] Figure 2 This is a schematic diagram showing the disassembled structure of a pultrusion forming device for wind turbine blade sheet proposed in this utility model;

[0016] Figure 3 This is a schematic diagram of the disassembled structure of the mounting frame of the pultrusion forming device for wind turbine blade sheet proposed in this utility model.

[0017] Figure 4 This is a schematic diagram of the split structure of the upper pressure plate of the pultrusion forming device for wind turbine blade sheet proposed in this utility model.

[0018] In the diagram: 1. Transition platform; 2. Mounting groove; 201. Mounting frame; 202. Upper pressure plate; 203. Lower pressure plate; 204. Extrusion groove; 205. Inclined hole; 206. Alignment plate; 207. Roller; 3. Two-way lead screw; 301. Handwheel; 302. Slot hole; 303. Screw; 4. Limiting groove; 5. Guide groove; 6. Guide rod. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0020] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] Reference Figures 1-4 A pultrusion forming device for wind turbine blade sheet includes a transition platform 1. The top surface of the transition platform 1 is provided with a mounting groove 2. The mounting groove 2 is provided with a pultrusion structure for pultruding the sheet. The pultrusion structure includes a mounting frame 201 slidably disposed in the mounting groove 2. The mounting frame 201 is provided with an upper pressure plate 202 and a lower pressure plate 203. An extrusion groove 204 is provided between the upper pressure plate 202 and the lower pressure plate 203. Two oblique holes 205 are provided on one side of the upper pressure plate 202 and are arranged opposite to each other. Two opposing plates 206 are provided on one side of the mounting frame 201. Rollers 207 are rotatably disposed on one side of each of the two opposing plates 206. The two rollers 207 are slidably disposed with the interior of the two oblique holes 205 respectively.

[0023] In this embodiment, a bidirectional lead screw 3 is fixed to the top surface of the mounting frame 201. The positive and negative threads of the bidirectional lead screw 3 are respectively threaded to two mating plates 206. A handwheel 301 is fixed to one end of the bidirectional lead screw 3. A slotted hole 302 is opened on the bottom surface of the mounting groove 2. A screw 303 is rotatably installed inside the slotted hole 302. The screw 303 is threaded to the mounting frame 201. A motor is fixed to one side of the transition platform 1. The output end of the motor passes through one side of the transition platform 1 and is fixed to one end of the screw 303. The screw 303 is existing technology. A screw guard can be used to prevent debris from being generated. Through the pultrusion structure, the operator places the composite sheet to be pultruded on the top surface of the transition table 1, ensuring the sheet is flat within the extrusion groove 204. Turning the handwheel 301 causes the bidirectional lead screw 3 to move the two opposing plates 206 closer together. The two rollers 207 slide inward along the inclined holes 205 on the upper pressure plate 202, thereby clamping the sheet between the upper and lower pressure plates 202 and 203. The extrusion groove 204 then clamps the opposing plates. The material is extruded and formed. A motor fixed to the side of the transition table 1 is started, driving the screw 303 to rotate. The screw 303, restricted by the slot 302, can only push the mounting frame 201 axially. As the mounting frame 201 moves forward under the action of the threads on the screw 303, the clamped upper and lower pressure plates 202 and 203 guide the material into the downstream mold. When the material has been extruded to a predetermined length or reached the set extrusion amount, the motor power is cut off, stopping the rotation of the screw 303, and the mounting frame 201... Once fixed in the current position, the operator rotates the handwheel 301 again, causing the bidirectional lead screw 3 to move in the opposite direction, driving the plate 206 and roller 207 to retract along the inclined hole 205. The upper pressure plate 202 separates from the lower pressure plate 203, releasing the clamping of the plate. After the plate is released, the operator removes the pultruded plate from the mounting slot 2 for subsequent inspection, cutting, or splicing. This facilitates quick clamping and fixing of the plate by the user, making the operation simple and convenient, and significantly improving the processing efficiency of the plate.

[0024] In this embodiment, limiting grooves 4 are provided on both sides of the inner wall of the mounting groove 2. The mounting frame 201 is slidably disposed within the limiting grooves 4. When the mounting frame 201 moves under the action of the screw 303, the mounting frame 201 slides within the limiting grooves 4. The limiting grooves 4 limit and guide the mounting frame 201, making its movement more stable.

[0025] In this embodiment, guide grooves 5 are provided on both sides of the inner wall of the mounting frame 201. The upper pressure plate 202 is slidably disposed inside the guide groove 5, and the lower pressure plate 203 is fixed inside the mounting frame 201. When the upper pressure plate 202 rises and falls under the action of the inclined hole 205 and the roller 207, the guide groove 5 guides and limits the movement of the upper pressure plate 202.

[0026] In this embodiment, a guide rod 6 is fixed on the top surface of the mounting frame 201. The guide rod 6 is slidably inserted with the two plates 206, and the guide rod 6 guides the movement of the two plates 206.

[0027] In this embodiment, the bottom surface of the mounting frame 201 is in contact with the inner bottom surface of the mounting groove 2. When the mounting frame 201 slides in the mounting groove 2, the mounting frame 201 can scrape off debris or other impurities that fall into the mounting groove 2.

[0028] Working Principle: In operation, the operator places the composite sheet to be pultruded on the top surface of the transition table 1, ensuring the sheet is flat within the extrusion groove 204. Turning the handwheel 301 causes the double-acting screw 3 to move the two opposing plates 206 closer together. The two rollers 207 slide inward along the inclined holes 205 on the upper pressure plate 202, thus clamping the sheet between the upper and lower pressure plates 202 and 203. The extrusion groove 204 then extrudes and shapes the sheet. The motor fixed to the side of the transition table 1 is then started, driving the screw 303 to rotate. The screw 303, restricted by the slot 302, can only push the mounting frame 201 axially. As the mounting frame 201 moves forward under the action of the threads on the screw 303, the clamped upper and lower pressure plates 202 guide the sheet into the downstream mold. When the sheet has been pultruded to the predetermined length or reached the set pultrusion amount, the motor power is cut off, stopping the screw 303's rotation. The mounting frame 201 is then fixed in its current position. The operator... Rotate handwheel 301 again to reverse the direction of the double-acting screw 3, causing plate 206 and roller 207 to retract along inclined hole 205. Upper pressure plate 202 separates from lower pressure plate 203, releasing the clamping of the sheet material. After the sheet material is released, the operator can remove the pultruded sheet material from the mounting slot 2 for subsequent inspection, cutting, or splicing. This facilitates quick clamping and fixing of the sheet material by the user. When mounting frame 201 moves under the action of screw 303, the mounting frame... The mounting frame 201 slides within the limiting groove 4, which limits and guides the mounting frame 201 to make its movement more stable. When the upper pressure plate 202 rises and falls under the action of the inclined hole 205 and the roller 207, the guide groove 5 guides and limits the movement of the upper pressure plate 202, and the guide rod 6 guides the movement of the two plates 206. When the mounting frame 201 slides within the mounting groove 2, the mounting frame 201 can scrape off debris or other impurities that fall into the mounting groove 2.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A pultrusion forming apparatus for wind turbine blade sheet, comprising a transition table (1), characterized in that: The top surface of the transition platform (1) is provided with an installation groove (2). The installation groove (2) is provided with a pultrusion structure for pultruding the sheet material. The pultrusion structure includes an installation frame (201) slidably disposed in the installation groove (2). The installation frame (201) is provided with an upper pressure plate (202) and a lower pressure plate (203). An extrusion groove (204) is provided between the upper pressure plate (202) and the lower pressure plate (203). Two oblique holes (205) are provided on one side of the upper pressure plate (202). The two oblique holes (205) are arranged opposite to each other. Two opposing plates (206) are provided on one side of the installation frame (201). Rollers (207) are rotatably disposed on one side of each of the two opposing plates (206). The two rollers (207) are slidably disposed with the interior of the two oblique holes (205) respectively.

2. The wind turbine blade sheet pultrusion sheet forming device according to claim 1, characterized in that, The top surface of the mounting frame (201) is fixed with a two-way screw rod (3). The positive and negative threads of the two-way screw rod (3) are respectively threaded to two mating plates (206). A handwheel (301) is fixed at one end of the two-way screw rod (3). A slot hole (302) is opened on the bottom surface of the mounting groove (2). A screw rod (303) is rotatably installed inside the slot hole (302). The screw rod (303) is threaded to the mounting frame (201). A motor is fixed on one side of the transition platform (1). The output end of the motor passes through one side of the transition platform (1) and is fixed to one end of the screw rod (303).

3. The wind turbine blade sheet pultrusion sheet forming device according to claim 2, characterized in that, The mounting groove (2) has a limiting groove (4) on both sides of its inner wall, and the mounting frame (201) and the limiting groove (4) are slidably arranged inside.

4. The wind turbine blade sheet pultrusion sheet forming device according to claim 3, characterized in that, The inner walls of the mounting frame (201) are provided with guide grooves (5) on both sides. The upper pressure plate (202) is slidably disposed inside the guide groove (5), and the lower pressure plate (203) is fixed inside the mounting frame (201).

5. The wind turbine blade sheet pultrusion sheet forming apparatus according to claim 4, characterized in that, The top surface of the mounting frame (201) is fixed with a guide rod (6), and the guide rod (6) is slidably inserted with two plates (206).

6. The wind turbine blade sheet pultrusion sheet forming apparatus according to claim 5, characterized in that, The bottom surface of the mounting frame (201) is in contact with the inner bottom surface of the mounting groove (2).

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