Vacuum demolding tool for wind power blade
By designing the movable connecting rod and rubber pad structure of the suction cup assembly, the problem of poor fit between the vacuum demolding device and the curved surface of the wind turbine blade was solved, achieving an efficient and damage-free vacuum demolding process.
Patent Information
- Application Number
- CN202520139812.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-21
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-01-21
AI Technical Summary
Existing vacuum demolding devices have difficulty effectively conforming to the curved surface of wind turbine blades, making it difficult for the suction cup plane to fit tightly against the blade plane, which may damage the blade and the mold.
A vacuum demolding fixture was designed, which uses a suction cup assembly including a movable connecting rod and a rubber pad. The suction cup mounting plate and the suction cup are connected by a ball head. The suction cup can be adjusted by a spring to adapt to different curved surfaces, and the vacuum sealing effect is enhanced by a sealing ring, so that the height of the suction cup can be adjusted.
The suction cup assembly can fit tightly against the surface of the wind turbine blade, protecting the blade surface from damage, while improving demolding efficiency and vacuum adsorption effect.
Smart Images

Figure CN223918419U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to wind power equipment processing technical field, concretely is a vacuum demolding tool for wind power blade. BACKGROUND
[0002] When the wind power blade is produced on the mold, the traditional demolding method is to fix the blade tip first, then lift the blade root, then place the cushion block and the air bag, then use the ejector rod to push the cushion block, then set the second air bag in turn and inflate, continue to push the cushion block, until the cushion block contacts the first air bag, and the demolding is completed. In the demolding process, tools and equipment including straps, cranes, cushion blocks, air bags and ejector rods may cause damage to the blade and the mold. With the development of science and technology, large wind power blades begin to use vacuum demolding devices for demolding.
[0003] A large wind power blade vacuum demolding device is disclosed in Chinese invention with publication number CN221819274U and publication date October 11, 2024, which includes a fixed frame, an adsorption adjustment device is arranged on the lower side of the fixed frame, a connecting frame is fixedly connected to the outer wall of the fixed frame, a protective belt is wound around the lower side of the connecting frame, a vacuum cavity is fixedly installed on the upper side of the fixed frame, the adsorption adjustment device includes a bidirectional screw rod, and an installation block is threadedly connected to the bidirectional screw rod; a motor is fixedly connected to the outer wall of the fixed frame, and the output shaft of the motor is fixedly connected with the bidirectional screw rod. The large wind power blade vacuum demolding device can adjust the suction cup to different positions according to different wind power blades, and the suction cup can quickly adhere to the surface of the wind power blade, reducing the vacuum time of the suction cup and allowing the wind power blade to be quickly fixed, thereby improving the demolding efficiency of the wind power blade.
[0004] From the above patent, it can be seen that the vacuum demolding device can adjust the suction cup to different positions to adapt to different wind power blades, but due to the large change of the arc surface of the wind power blade, the suction cup plane and the wind power blade plane are not easy to tightly adhere; Therefore, the utility model provides a vacuum demolding tool for wind power blade for solving the above problems. SUMMARY
[0005] The utility model aims at solving the problems in the prior art and provides a vacuum demolding tool for wind power blade.
[0006] To achieve the above purpose, the utility model provides the following technical scheme:
[0007] A kind of vacuum demolding tool for wind power blade, including lifting frame 1, the two ends of the lifting frame 1 are movably connected with mobile support 2, the mobile support 2 is vertically connected by three independent pipes, the bottom end of the mobile support 2 is connected with mounting plate 3, the mounting plate 3 is connected with fixed support 4 downwards, the end of the fixed support 4 away from the mounting plate 3 is connected with suction cup assembly 5, the suction cup assembly 5 includes suction cup mounting plate 51, the two ends of the suction cup mounting plate 51 are each provided with several movable connecting rods 52, the two ends of the movable connecting rod 52 are connected with the suction cup mounting plate 51 upwards and suction cup 53 downwards by ball head, the middle part of the movable connecting rod 52 is provided with spring, the suction cup 53 is provided with rubber pad 54 downwards, the rubber pad 54 covers the lower surface of the suction cup 53, the edge of the suction cup 53 is provided with sealing ring 55 upwards and downwards, and the sealing ring 55 covers the edge of the suction cup 53.
[0008] Preferably, the fixed support 4 is provided with a control unit 6, and the control unit 6 is provided with a vacuum pressure gauge, an electromagnetic valve and a manual control valve.
[0009] Preferably, the mobile support 2 is provided with a vacuum pump 7, and the vacuum pump 7 is electrically connected with the control unit 6.
[0010] Preferably, the suction cup 53 is provided with an air outlet 56 between the sealing ring 55 and the movable connecting rod 52, and the air outlet 56 is connected with the vacuum pump 7 through an air pipe.
[0011] Preferably, the number of the suction cup 53 is eight, and the suction cup 53 is symmetrically arranged around the center of the suction cup mounting plate 51.
[0012] Preferably, the mounting plate 3 and the fixed support 4 are movably connected.
[0013] Preferably, the mobile support 2 and the following structure are symmetrically arranged around the central axis of the lifting frame 1.
[0014] The utility model discloses the beneficial effects are:
[0015] The movable connecting rod is arranged in the suction cup assembly, the spring is arranged in the middle part of the movable connecting rod, the movable connecting rod is connected with the suction cup mounting plate and the suction cup through ball head respectively at two ends, the spring is arranged in the middle part of the movable connecting rod, so that the suction cup is adapted to wind power blade with different curved surfaces, the rubber pad is arranged to protect the surface of the wind power blade, and the sealing ring is arranged to enhance the vacuum sealing effect, so that the suction cup assembly is closely combined with the surface of the wind power blade and vacuum adsorbed, and the movable connection between the mounting plate and the fixed support can adjust the height of the suction cup assembly to meet the needs of different wind power blades. The application solves the problem that the suction cup plane and the plane of the wind power blade are not easy to be closely combined, and realizes the adjustability of the suction cup height, which is suitable for different wind power blades. Attached Figure Description
[0016] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.
[0017] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.
[0018] Figure 1 This is a front structural diagram of the present invention;
[0019] Figure 2 This is a front structural diagram of the suction cup assembly of this utility model;
[0020] Figure 3 This is a bottom view of the suction cup mounting plate and suction cup of this utility model.
[0021] Figure 4 This is a bottom view of the suction cup and sealing ring of this utility model.
[0022] As shown in the figure:
[0023] 1. Lifting frame; 2. Movable bracket; 3. Mounting plate; 4. Fixed bracket; 5. Suction cup assembly; 51. Suction cup mounting plate; 52. Movable connecting rod; 53. Suction cup; 54. Rubber pad; 55. Sealing ring; 56. Air extraction port; 6. Control unit; 7. Vacuum pump. Detailed Implementation
[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.
[0025] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents the preferred application of the application. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.
[0026] It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other without conflict.
[0027] It should be noted that: similar signs and letters are easy to represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.
[0028] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product of the present application is used, or the orientation or positional relationship commonly understood by those skilled in the art, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" and the like are only used for differentiation and cannot be understood as indicating or implying relative importance.
[0029] In the description of the present application, it should also be noted that unless otherwise explicitly specified and limited, the terms "set", "mount", "connect", "connect" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0030] Referring to Figures 1-4The utility model discloses a vacuum demolding tool for wind power blade, including hoisting frame 1, the two ends of hoisting frame 1 are sequentially arranged with the central symmetry distribution of the central axis of hoisting frame 1 mobile support 2, vacuum pump 7, mounting plate 3, control unit 6, fixed support 4 and sucking disc assembly 5, mobile support 2 is movably connected on hoisting frame 1 to adjust the gap between left and right sucking disc assembly 5 to adapt to different wind power blades, vacuum pump 7 is used for sucking disc assembly 5 to suck vacuum to realize vacuum demolding, mounting plate 3 is connected mobile support 2 and is connected fixed support 4 downward, the end of fixed support 4 away from mounting plate 3 is hinged sucking disc assembly 5, sucking disc assembly 5 is used to adhere and adsorb wind power blade, sucking disc assembly 5 includes sucking disc mounting plate 51, and the two ends of sucking disc mounting plate 51 are provided with a plurality of movable connecting rods 52, and the two ends of movable connecting rod 52 are connected sucking disc mounting plate 51 upward and sucking disc 53 downward through ball head to ensure the degree of freedom of sucking disc 53 rotation, the middle part of movable connecting rod 52 is provided with spring, and the telescopic characteristic of spring is used to ensure that sucking disc 53 adapts to the wind power blade of different curved surface, sucking disc 53 is provided with rubber pad 54 downward, and rubber pad 54 covers the lower surface of sucking disc 53 to protect the surface of wind power blade, and the edge of sucking disc 53 is provided with sealing ring 55, and sealing ring 55 covers the edge of sucking disc 53, on the one hand makes rubber pad 54 closely adhere sucking disc 53, and on the other hand seals the edge of sucking disc 53 to strengthen the vacuum sealing effect, and in addition can ensure that sucking disc assembly 5 and the surface of wind power blade closely adhere and vacuum adsorption.
[0031] Control unit 6 is set up on fixed support 4, and vacuum pressure gauge, electromagnetic valve and manual control valve are set up in control unit 6 respectively, vacuum pressure gauge is used to show the vacuum pressure value in sucking disc 53, electromagnetic valve is used to remote control control adsorption pressure according to the set vacuum value, and manual control valve can manually open / close the vacuum in sucking disc 53.
[0032] In an alternative embodiment, the air extraction port 56 is provided between the sealing ring 55 and the movable connecting rod 52 on the sucking disc 53, the air extraction port 56 and the vacuum pump 7 are connected through the air extraction pipe, and the vacuum pump 7 extracts the vacuum in the sucking disc 53 from the air extraction port 56.
[0033] In an alternative embodiment, the number of sucking discs 53 is 8, and the center of the sucking disc mounting plate 51 is symmetrically arranged left and right.
[0034] In an alternative embodiment, the mounting plate 3 and the fixed support 4 are movably connected to adjust the height of the sucking disc assembly 5 to meet the needs of different wind power blades.
[0035] In use, first, the mounting plate 3 and the fixing support 4 are adjusted so that the height of the suction cup assembly 5 corresponds to the height of the corresponding wind power blade, then the moving support 2 is adjusted, the ball head of the movable connecting rod 52 and the telescopic property of the spring are used to make the suction cup assembly 5 adhere to the wind power blade, the rubber pad 54 protects the surface of the wind power blade, then the control unit 6 is started, the vacuum pump 7 is started by the control unit 6, vacuum is drawn in the suction cup 53 from the suction port 56 through the air suction pipe, and the sealing effect of the sealing ring 55 is enhanced; the vacuum degree in the suction cup 53 promotes the suction cup assembly 5 to closely adhere to the surface of the wind power blade and to vacuum adsorb the wind power blade; when the vacuum degree reaches above-0.8bar, the high vacuum degree is maintained, the vacuum adsorption of the suction cup assembly 5 to the wind power blade is realized, then the tooling is pulled upward, the demolding of the wind power blade is realized, and the work is completed.
[0036] Of course, the embodiments of the specific embodiments are the preferred embodiments of the utility model, and are not limited to the protection scope of the utility model, so: equivalent changes made according to the structure, shape and principle of the utility model should be covered in the protection scope of the utility model.
Claims
1. A vacuum demolding tool for wind power blades, comprising a lifting frame (1), the two ends of the lifting frame (1) are movably connected with moving supports (2), the moving supports (2) are connected with each other vertically by three independent pipes, the bottom end of the moving supports (2) is connected with a mounting plate (3), the mounting plate (3) is connected with a fixed support (4) downward, the end of the fixed support (4) away from the mounting plate (3) is connected with a suction cup assembly (5) through a hinge, characterized in that: The suction disc assembly (5) comprises a suction disc mounting plate (51), a plurality of movable connecting rods (52) are arranged at both ends of the suction disc mounting plate (51), the movable connecting rods (52) are connected to the suction disc mounting plate (51) and the suction disc (53) through ball heads at both ends, springs are arranged at the middle of the movable connecting rods (52), the suction disc (53) is provided with a rubber pad (54) downward, the rubber pad (54) covers the lower surface of the suction disc (53), and sealing rings (55) are arranged on the edges of the suction disc (53) upward and downward, and the sealing rings (55) cover the edges of the suction disc (53).
2. A vacuum demolding tooling for wind turbine blades according to claim 1, characterized in that: A control unit (6) is arranged on the fixed support (4), and a vacuum pressure gauge, an electromagnetic valve and a manual control valve are arranged in the control unit (6) respectively.
3. A vacuum demolding tooling for wind turbine blades according to claim 2, characterized in that: A vacuum pump (7) is arranged on the moving support (2), and the vacuum pump (7) is electrically connected with the control unit (6).
4. A vacuum demolding tooling for wind turbine blades according to claim 3, characterized in that: An air suction port (56) is arranged between the sealing ring (55) and the movable connecting rod (52) on the suction disc (53), and the air suction port (56) is connected with the vacuum pump (7) through an air suction pipe.
5. A vacuum demolding tooling for wind turbine blades according to claim 1, characterized in that: The number of the suction discs (53) is 8, and the suction discs are symmetrically arranged left and right with the center of the suction disc mounting plate (51) as the center.
6. A vacuum demolding tooling for wind turbine blades according to claim 1, characterized in that: The mounting plate (3) and the fixed support (4) are movably connected.
7. A vacuum demolding tooling for wind turbine blades according to claim 1, characterized in that: The moving support (2) and the following structures are symmetrically arranged with the center axis of the hoisting frame (1) as the center.
Citation Information
Patent Citations
Vacuum demolding device for large wind power blade
CN221819274U