Blade mold double-joint overturning system

Abstract

The utility model provides a double-joint overturning system for a blade mold, and relates to the technical field of blade molds. The blade mold double-joint overturning system comprises a plurality of overturning units. Each overturning unit comprises a first rotating arm, a second rotating arm, a base, a first telescopic assembly and a second telescopic assembly. The first rotating arm is connected with the upper die; the second rotating arm and the first rotating arm are rotationally connected around a first rotating shaft; the base is rotationally connected with the second rotating arm and is connected with the lower die; the first telescopic assembly is rotationally connected with the first rotating arm and the second rotating arm. The second telescopic assembly is rotationally connected with the second rotating arm and the base. The tilt angle sensor is arranged on the first rotating arm and is configured to measure the tilt angle of the first rotating arm. The current inclination angle of the first rotating arm is monitored through the inclination angle sensor, and then movement of the first telescopic assembly or the second telescopic assembly is controlled according to the current inclination angle of the first rotating arm, so that synchronization of the inclination angles of the first rotating arms of the multiple overturning units is achieved.

Description

Technical Field

[0001] This utility model relates to the field of blade mold technology, specifically to a blade mold double-joint flipping system. Background Technology

[0002] During the blade manufacturing process, the PS (Positive Side) and SS (Stable Side) surfaces are cast separately into PS and SS surface molds. After production, the PS surface mold (including the blade) needs to be rotated 180° and bonded to the SS surface mold to solidify into a single blade. Rotating the PS surface of the blade mold 180° requires a specialized rotation system. This system must control each rotation arm to rotate 180°, and the rotation angles of each arm must be synchronized. Since the blade mold has multiple rotation arms, controlling the synchronization of the rotation angles of each arm is a critical problem that needs to be solved. Utility Model Content

[0003] In view of the problems existing in the prior art, the present invention provides a blade mold double joint flipping system to improve the problem that the existing blade mold double joint flipping system cannot control the synchronization of the flipping arm.

[0004] To achieve the above and other related objectives, this utility model provides a blade mold double-joint flipping system, comprising several flipping units. Each flipping unit includes a first rotating arm, a second rotating arm, a base, a first telescopic assembly, and a second telescopic assembly. The first rotating arm is connected to an upper mold. The second rotating arm is rotatably connected to the first rotating arm about a first rotation axis. The base is rotatably connected to the second rotating arm about a second rotation axis and is connected to a lower mold. The first telescopic assembly is rotatably connected to both the first and second rotating arms and drives the first and second rotating arms to rotate. The second telescopic assembly is rotatably connected to both the second rotating arm and the base and drives the second rotating arm to rotate. A tilt sensor is disposed on the first rotating arm and configured to measure the tilt angle of the first rotating arm to control the movement of the first and second telescopic assemblies.

[0005] In an exemplary embodiment of the present invention, a controller is included, which is electrically connected to the tilt sensor.

[0006] In an exemplary embodiment of the present invention, the first telescopic component includes a first hydraulic cylinder, the second telescopic component includes a second hydraulic cylinder, and both the first hydraulic cylinder and the second hydraulic cylinder are connected to a hydraulic power unit.

[0007] In an exemplary embodiment of this utility model, the hydraulic station includes a motor and a frequency converter, and the controller is electrically connected to the frequency converter to control the motor speed through the frequency converter.

[0008] In an exemplary embodiment of this utility model, the average value of the values ​​collected by a plurality of tilt sensors is a reference angle, and the controller adjusts the output frequency of the corresponding frequency converter according to the difference between the tilt sensor values ​​and the reference angle.

[0009] In an exemplary embodiment of the present invention, the synchronization error between the tilt angle of the first rotating arm and the reference angle is within ±0.5°.

[0010] In an exemplary embodiment of this utility model, the hydraulic station is connected to the first hydraulic cylinder via a first connecting pipe, and a first solenoid valve is provided on the first connecting pipe. The first solenoid valve is electrically connected to the controller. The hydraulic station is connected to the second hydraulic cylinder via a second connecting pipe, and a second solenoid valve is provided on the second connecting pipe. The second solenoid valve is electrically connected to the controller.

[0011] In an exemplary embodiment of this utility model, an upper mold connecting assembly is slidably connected to the first rotating arm, and the upper mold connecting assembly is fixed to the upper mold; a lower mold connecting assembly is provided on the base, and the lower mold connecting assembly is fixed to the lower mold; in the mold-closed state, the upper mold connecting assembly and the lower mold connecting assembly are located on the same side.

[0012] In an exemplary embodiment of the present invention, the two ends of the first telescopic component are respectively rotatably connected to the upper end of the first rotating arm and the lower end of the second rotating arm on the side away from the upper mold connecting component.

[0013] In an exemplary embodiment of the present invention, the two ends of the second telescopic component are respectively rotatably connected to the lower end of the second rotating arm facing the upper mold connecting component and the lower end of the base facing the lower mold connecting component.

[0014] In combination with existing technologies, the beneficial effects of this utility model are as follows:

[0015] Existing blade mold flipping systems cannot achieve synchronized angles for the flipping movements of each flipping arm, especially for dual-joint flipping systems where each flipping arm has two telescopic components working together to complete the flipping, making angle synchronization even more difficult. The dual-joint flipping system for blade molds in this application includes several flipping units. Each flipping unit has a tilt sensor that monitors the current tilt angle of the first rotating arm. Based on the current tilt angle of the first rotating arm, the system controls the movement of the first or second telescopic component, thereby achieving synchronized tilt angles of the first rotating arms of multiple flipping units, enabling the upper mold to complete the flipping process. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other embodiments can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of an exemplary blade flipping system of the present invention;

[0018] Figure 2 This is a schematic diagram of an exemplary flipping unit of the present invention;

[0019] Figure 3 This is a schematic diagram of another exemplary flipping unit of the present invention.

[0020] Component designation explanation

[0021] 10. Tilting unit; 100. First rotating arm; 110. Upper mold connecting assembly; 120. First rotating shaft; 200. Second rotating arm; 210. Second rotating shaft; 300. Base; 310. Lower mold connecting assembly; 400. First telescopic assembly; 500. Second telescopic assembly; 600. Tilt sensor; 700. Hydraulic station; 710. Frequency converter. Detailed Implementation

[0022] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. It should also be understood that the terminology used in the embodiments of this utility model is for describing specific implementation schemes and not for limiting the scope of protection of this utility model. Test methods in the following embodiments that do not specify specific conditions are generally performed under conventional conditions or according to the conditions recommended by the respective manufacturers.

[0023] When numerical ranges are given in the embodiments, it should be understood that, unless otherwise specified in this invention, both endpoints of each numerical range and any value between the two endpoints may be selected. Unless otherwise defined, all technical and scientific terms used in this invention, as well as the prior art known to those skilled in the art and the description of this invention, may be implemented using any prior art methods, equipment, and materials similar to or equivalent to those in the embodiments of this invention.

[0024] It should be noted that the terms such as "upper", "lower", "left", "right", "middle" and "one" used in this specification are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as within the scope of implementation of this utility model.

[0025] During blade production, the upper mold in the blade mold needs to be rotated 180° to close with the lower mold, thus allowing the PS and SS surfaces to solidify into a single blade. The blade mold requires a specialized rotation system for rotation. Commonly used systems include single-joint and double-joint systems. Double-joint systems are more advanced, but they require more precise control over the rotation arm angles. Therefore, this application provides a double-joint rotation system for blade molds to improve the accuracy of rotation arm angle synchronization and ensure that all rotation arms of the blade mold rotate synchronously.

[0026] Please see Figures 1 to 3This utility model provides a double-joint flipping system for a blade mold, comprising several flipping units 10, which together complete the relative rotation of the upper and lower molds in the blade mold. The number of flipping units 10 can be selected according to actual needs, such as 6, 9, 12, etc. The flipping unit 10 includes a first rotating arm 100, a second rotating arm 200, a base 300, a first telescopic component 400, and a second telescopic component 500. The first rotating arm 100 is connected to the upper mold. The second rotating arm 200 is rotatably connected to the first rotating arm 100 about a first rotation axis. The base 300 is rotatably connected to the second rotating arm 200 about a second rotation axis and is connected to the lower mold. The first telescopic component 400 is rotatably connected to the first rotating arm 100 and the second rotating arm 200 respectively, and drives the first rotating arm 100 and the second rotating arm 200 to rotate. The second telescopic component 500 is rotatably connected to the second rotating arm 200 and the base 300 respectively, and drives the second rotating arm 200 and the base 300 to rotate. When the blade mold needs to be flipped, the second telescopic component 500 drives the second rotating arm 200 to rotate relative to the base 300 until it rotates 90°. Then, the first telescopic component 400 drives the first rotating arm 100 to rotate relative to the second rotating arm 200 until it rotates 90°. This achieves a 180° rotation of the upper mold relative to the lower mold, thus completing the flipping of the blade mold. An inclination sensor 600 is mounted on the first rotating arm 100. The inclination sensor 600 measures the inclination angle of the first rotating arm 100 to control the movement of the first telescopic component 400 and the second telescopic component 500. Since the first rotating arm 100 is connected to the second rotating arm 200, the first rotating arm 100 will rotate when the first telescopic component 400 and the second telescopic component 500 move. Therefore, by setting the tilt sensor 600 on the first rotating arm 100, the movement of the first telescopic component 400 and the second telescopic component 500 can be monitored separately. The entire flipping process can be monitored by a single tilt sensor 600, ensuring monitoring effectiveness, reducing the number of tilt sensors 600 required, and lowering costs. The blade mold double-joint flipping system of this utility model, by setting the tilt sensor 600 on the first rotating arm 100, measures the angle value of the first rotating arm 100 in real time during the flipping process. Based on the current tilt angle of the first rotating arm 100 and the reference angle, the movement of the first telescopic component 400 or the second telescopic component 500 is adjusted, realizing the synchronous rotation of multiple flipping units 10 in the flipping system, improving the uniformity of force on each flipping unit 10 during flipping, and thus improving the stability of the flipping motion.

[0027] In one embodiment, the blade mold double-joint flipping system further includes a controller, which is electrically connected to the tilt sensor 600. The controller obtains data from each tilt sensor 600 and then controls the movement of the first telescopic component 400 or the second telescopic component 500 to achieve synchronous rotation of each flipping unit 10.

[0028] In one embodiment, the tilt sensor 600 is disposed within the first rotating arm 100 so that the first rotating arm 100 protects the tilt sensor 600, reduces the risk of the tilt sensor 600 being damaged by impact, and improves its durability.

[0029] Of course, as an alternative, the tilt sensor 600 can be fixed at other positions on the first rotating arm 100, and the tilt sensor 600 can measure the tilt angle of the first rotating arm 100.

[0030] In one embodiment, the blade mold double-joint flipping system adopts a distributed control system, that is, a mode of one master station + multiple slave stations, the number of slave stations being selected according to the number of flipping units 10. Real-time communication is established between the master and slave stations, with a communication response time not exceeding 50ms. The controller is the master station, using a Siemens PLC1500-1PN as the master controller, and the slave stations use ET200SP modules.

[0031] Of course, as some alternatives, the blade mold double-joint flipping system can also use other controllers, which can be selected according to actual needs.

[0032] Please see Figure 3 In one embodiment, the first telescopic assembly 400 includes a first hydraulic cylinder, the two ends of which are rotatably connected to a first rotating arm 100 and a second rotating arm 200, respectively. The telescopic movement of the first hydraulic cylinder enables the first rotating arm 100 and the second rotating arm 200 to rotate relative to each other around a first rotation axis. The second telescopic assembly 500 includes a second hydraulic cylinder, the two ends of which are rotatably connected to a second rotating arm 200 and a base 300, respectively. The telescopic movement of the second hydraulic cylinder enables the second rotating arm 200 and the base 300 to rotate relative to each other around a second rotation axis. Both the first and second hydraulic cylinders are connected to a hydraulic station 700, which provides hydraulic oil with appropriate flow direction, pressure, and flow rate to the first and second hydraulic cylinders, respectively, to control their movement.

[0033] Please see Figure 2In one embodiment, the hydraulic station 700 includes a motor and a frequency converter 710. The controller is electrically connected to the frequency converter 710 to control the motor speed. The controller controls the frequency converter 710 and thus controls the motor speed, thereby adjusting the pressure and flow rate of oil supplied to the first hydraulic cylinder or the second hydraulic cylinder, thereby controlling the extension and retraction speed of the first hydraulic cylinder or the second hydraulic cylinder, and thus adjusting the tilting angle and tilting speed of the first rotating arm 100, so that the angular synchronization error of each first rotating arm 100 is within the design requirements range.

[0034] In one embodiment, the hydraulic station 700 is connected to the first hydraulic cylinder via a first connecting pipe. A first solenoid valve is installed on the first connecting pipe and is electrically connected to a controller. The controller controls the opening and closing of the first solenoid valve to open and close the first connecting pipe, thereby controlling the movement state of the first hydraulic cylinder. The hydraulic station 700 is also connected to the second hydraulic cylinder via a second connecting pipe. A second solenoid valve is installed on the second connecting pipe and is electrically connected to the controller. The controller controls the opening and closing of the second solenoid valve to open and close the second connecting pipe, thereby controlling the rotation of the second hydraulic cylinder. Using a single hydraulic station 700 to supply hydraulic oil to both the first and second hydraulic cylinders reduces costs and simplifies management.

[0035] Of course, as an option, the first hydraulic cylinder and the second hydraulic cylinder can be connected to different hydraulic stations 700 respectively.

[0036] In one embodiment, the average value of the values ​​collected by the tilt sensors 600 is used as a reference angle. The controller adjusts the output frequency of the corresponding frequency converter 710 based on the difference between the tilt sensor values ​​and the reference angle. By obtaining the data from each tilt sensor 600 in real time, the average value of the tilt sensor data is calculated. Using this average value as the reference angle, the difference between each tilt sensor value and the average value is calculated, thereby adjusting the output frequency of each tilt sensor 600 relative to the frequency converter 710. This reduces the angular error of the first rotating arm 100 and improves the synchronization of its rotation. By calculating the average value from the real-time tilt data, each tilting unit 10 can be adjusted in real time, ensuring that each tilting unit 10 can rotate synchronously under different operating conditions, and allowing for adjustments based on actual circumstances.

[0037] In one embodiment, the synchronization error between the tilt angle of the first rotating arm 100 and the reference angle is within ±0.5°. By setting an appropriate synchronization error, the uniformity of force on each flipping unit 10 is ensured, and situations such as excessive force on one or more flipping units 10 and damage are avoided.

[0038] Please see Figure 2 and Figure 3 In one embodiment, an upper mold connecting assembly 110 is slidably connected to the first rotating arm 100. The upper mold connecting assembly 110 is fixed to the upper mold. Since the rotation axis of the flipping unit 10 is different from the rotation axis of the upper mold, the upper mold can rotate with the first rotating arm 100 by sliding the upper mold connecting assembly 110 to the first rotating arm 100, thereby achieving a 180° flip of the upper mold. A lower mold connecting assembly 310 is provided on the base 300. The lower mold connecting assembly 310 is fixed to the lower mold. During rotation, the base 300 and the lower mold are relatively fixed, so the lower mold connecting assembly 310 is fixedly connected to the base 300 and the lower mold respectively. In the mold-closed state, the upper mold connecting assembly 110 and the lower mold connecting assembly 310 are located on the same side. In the mold-opening state, the upper mold connecting assembly 110 and the lower mold connecting assembly 310 are located on opposite sides of the flipping unit 10 respectively.

[0039] Please see Figure 2 and Figure 3 In one embodiment, the two ends of the first telescopic component 400 are rotatably connected to the upper end of the first rotating arm 100 and the lower end of the second rotating arm 200 on the side away from the upper mold connecting component 110, respectively. The two ends of the second telescopic component 500 are rotatably connected to the lower end of the second rotating arm 200 on the side facing the upper mold connecting component 110 and the lower end of the base 300 on the side facing the lower mold connecting component 310, respectively. In the mold closed state, the second telescopic component 500 retracts and the first telescopic component 400 extends. At this time, the upper mold connecting component 110 and the lower mold connecting component 310 are located on the same vertical plane. When mold opening is required, the first telescopic component 400 first extends, driving the second rotating arm 200 to rotate 90°, thereby causing the first rotating arm 100 and the upper mold to rotate 90° along with the second rotating arm 200. Then, the first telescopic component 400 retracts, driving the first rotating arm 100 and the upper mold to rotate 90°, thereby causing the first rotating arm 100 and the upper mold to rotate a total of 180°, completing the mold opening. During mold closing, the second telescopic component 500 first extends, causing the first rotating arm 100 and the upper mold to rotate 90°. Then, the second telescopic component 500 retracts, causing the second rotating arm 200, the first rotating arm 100, and the upper mold to rotate 90°, thus closing the upper and lower molds. This invention uses an angle sensor installed on the first rotating arm to measure the tilting angle of each tilting unit. Each hydraulic station is equipped with a frequency converter to control the operating speed of the first or second telescopic component. By controlling the output frequency of the frequency converter, synchronization of tilting units within the tilting system is achieved. Therefore, this invention effectively overcomes some practical problems in the prior art, thus possessing high utilization value and practical significance.

[0040] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A vane mould double joint flip system comprising a number of flip units, characterized in that, The turnover unit comprises: a first rotating arm connected with the upper die; a second rotating arm connected with the first rotating arm around a first rotating shaft; a base connected with the second rotating arm around a second rotating shaft, the base being connected with the lower die; a first telescopic assembly connected with the first rotating arm and the second rotating arm respectively and driving the first rotating arm and the second rotating arm to rotate; a second telescopic assembly connected with the second rotating arm and the base respectively and driving the second rotating arm and the base to rotate; an inclination sensor arranged on the first rotating arm, the inclination sensor being configured to measure the inclination of the first rotating arm to control the movement of the first telescopic assembly and the second telescopic assembly. The turnover system further comprises a distributed control system, the distributed control system comprising one master station and a plurality of slave stations, the number of slave stations being the same as the number of turnover units, and real-time communication being determined between the master station and the slave stations.

2. The vane mold double articulation roll-over system of claim 1, wherein, The controller is electrically connected with the inclination sensor.

3. The vane mold double articulation roll-over system of claim 2, wherein, The first telescopic assembly comprises a first hydraulic cylinder, and the second telescopic assembly comprises a second hydraulic cylinder, the first hydraulic cylinder and the second hydraulic cylinder being connected with a hydraulic station.

4. The vane mold double articulation roll-over system of claim 3, wherein, The hydraulic station comprises a motor and a frequency converter, and the controller is electrically connected with the frequency converter to control the rotating speed of the motor through the frequency converter.

5. The vane mold double articulation flip system of claim 4, wherein, The average value of the values collected by the plurality of inclination sensors is a reference angle, and the controller adjusts the output frequency of the corresponding frequency converter according to the difference between the value of the inclination sensor and the reference angle.

6. The vane mold double articulation roll-over system of claim 5, wherein, The synchronization error between the inclination of the first rotating arm and the reference angle is within ±0.5°.

7. The vane mold double articulation roll-over system of claim 3, wherein, The hydraulic station is connected with the first hydraulic cylinder through a first connecting pipeline, a first electromagnetic valve is arranged on the first connecting pipeline, and the first electromagnetic valve is electrically connected with the controller; the hydraulic station is connected with the second hydraulic cylinder through a second connecting pipeline, a second electromagnetic valve is arranged on the second connecting pipeline, and the second electromagnetic valve is electrically connected with the controller.

8. The vane mold double articulation roll-over system of claim 1, wherein, An upper die connecting assembly is slidably connected to the first rotating arm, the upper die connecting assembly being fixed with the upper die; a lower die connecting assembly is arranged on the base, the lower die connecting assembly being fixed with the lower die; in the die closing state, the upper die connecting assembly and the lower die connecting assembly are located on the same side.

9. The vane mold double articulation roll-over system of claim 8, wherein, The two ends of the first telescopic assembly are rotatably connected with the upper end of the first rotating arm and the lower end of the second rotating arm away from the upper die connecting assembly, respectively.

10. The vane mold bi-articulation flip system of claim 9, wherein, The two ends of the second telescopic assembly are rotatably connected with the lower end of the second rotating arm toward the upper die connecting assembly and the lower end of the base toward the lower die connecting assembly, respectively.

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