Efficient filling device for integrally-formed blade

Abstract

The utility model discloses an efficient filling device for an integrally formed blade, which comprises a filling mold, a filling pipeline, a controller, a plurality of flow regulating valves and a plurality of tail end resin in-place detection parts, the filling pipeline comprises a main pipeline, a plurality of branch pipelines and a plurality of capillary pipelines, the main pipeline extends along the length direction of the filling mold, and the controller is connected with the controller. One ends of the branch pipelines are connected to the main pipeline, the other ends of the branch pipelines extend in the direction away from the main pipeline, one ends of the capillary pipelines are connected to the branch pipelines, the other ends of the capillary pipelines extend in the direction away from the branch pipelines, and the flow adjusting valves are connected to the corresponding branch pipelines. The tail end resin in-place detection parts correspond to the flow adjusting valves and are far away from the main pipeline, the input end of the controller is electrically connected to the multiple tail end resin in-place detection parts, and the output end of the controller is electrically connected to the multiple flow adjusting valves. The production efficiency is greatly improved; the resin flow is accurately regulated and controlled, the filling quality is improved, and the blade performance is enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to blade manufacturing technical field, especially relate to a kind of integrated forming blade high-efficiency pouring device. BACKGROUND

[0002] In the blade manufacturing field, especially in the field of wind power generation blade, aero-engine blade such large blade, integrated forming technology is of great significance to improve blade performance and reduce cost. However, the traditional blade forming pouring technology has many drawbacks. The pouring time is long, which seriously restricts the production efficiency. During the pouring process, unevenness may occur, resulting in defects such as bubbles and voids in the blade, which greatly affects the structural strength and fatigue life of the blade. With the continuous rise of market requirements for blade performance and the continuous expansion of production scale, it is urgent to develop an efficient and high-quality pouring technology for integrated forming blades. SUMMARY

[0003] The utility model aims at overcoming the above-mentioned deficiencies existing in the prior art, and provides an integrated forming blade high-efficiency pouring device.

[0004] The utility model is realized by the following technical solutions:

[0005] An integrated forming blade high-efficiency pouring device comprises a pouring mold, a pouring pipeline, a controller, a plurality of flow regulating valves and a plurality of end resin in-place detection components. The pouring pipeline, the plurality of flow regulating valves and the plurality of end resin in-place detection components are located in the cavity of the pouring mold. The pouring pipeline comprises a main pipeline, a plurality of branch pipelines and a plurality of capillary pipelines. The main pipeline extends along the length direction of the pouring mold, and the main pipeline extends from one end of the pouring mold and is adjacent to the other end of the pouring mold. One end of the branch pipeline is connected to the main pipeline and communicates with the main pipeline. The other end of the branch pipeline extends away from the main pipeline. One end of the capillary pipeline is connected to the branch pipeline and communicates with the branch pipeline. The other end of the capillary pipeline extends away from the branch pipeline. The plurality of branch pipelines, the plurality of flow regulating valves and the plurality of end resin in-place detection components correspond one-to-one. The flow regulating valve is connected to the corresponding branch pipeline. The end resin in-place detection component corresponds to the flow regulating valve and is away from the main pipeline. The input end of the controller is electrically connected to the plurality of end resin in-place detection components. The output end of the controller is electrically connected to the plurality of flow regulating valves and is used to control the opening and closing of the plurality of flow regulating valves respectively.

[0006] Further, the integrated blade high-efficiency infusion device further comprises a vacuum extraction component, which is located outside the infusion mold, is connected to the infusion mold and communicates with the cavity in the infusion mold.

[0007] Further, the controller is electrically connected to the vacuum extraction component and is used for controlling the switch and output power of the vacuum extraction component.

[0008] Further, the integrated blade high-efficiency infusion device further comprises a pressure infusion component, which is located outside the infusion mold, is connected to the main pipeline and communicates with the main pipeline.

[0009] Further, the controller is electrically connected to the pressure infusion component and is used for controlling the switch and output power of the pressure infusion component.

[0010] Further, the flow regulating valve is located in the branch pipeline close to one end of the main pipeline.

[0011] Further, the end resin in place detection component is arranged in the branch pipeline away from one end of the main pipeline.

[0012] Further, a plurality of the capillary pipelines are communicated with the branch pipeline and communicated with each other, and the plurality of capillary pipelines are arranged in different directions.

[0013] Further, the end resin in place detection component is an end resin in place detection sensor.

[0014] Further, the infusion mold comprises a left mold and a right mold, the left mold is detachably connected with the right mold, and the infusion pipeline is distributed on the inner wall surface of the left mold and the right mold.

[0015] The integrated blade high-efficiency infusion device has the advantages that:

[0016] The integrated blade high-efficiency infusion device can realize the optimization layout according to the shape and structural characteristics of the blade through the infusion pipeline, realize the branching and extension to each part of the blade from the infusion inlet, greatly improve the production efficiency, and accurately control the resin flow according to the infusion requirements of different parts through the end resin in place detection component and the flow regulating valve, improve the infusion quality and enhance the blade performance. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structure schematic view of the integrated blade high-efficiency infusion device.

[0018] Figure 2The utility model discloses an integrated forming blade high -efficient perfusion device's partial enlarged schematic view of embodiment.

[0019] Mark explanation:

[0020] Perfusion mold 1

[0021] Left mould 11

[0022] Right membrane 12

[0023] Perfusion pipeline 2

[0024] Main pipeline 21

[0025] Branch pipeline 22

[0026] Capillary pipeline 23

[0027] Flow regulating valve 3

[0028] End resin in place detection component 4 Specific implementation

[0029] The following description of each embodiment is with reference to the accompanying drawings to illustrate the specific embodiment that the utility model can be used to implement.

[0030] As Figure 1 And Figure 2 The utility model discloses an integrated forming blade high -efficient perfusion device, that includes perfusion mold 1, perfusion pipeline 2, controller, a plurality of flow regulating valve 3 and a plurality of end resin in place detection component 4, and perfusion pipeline 2, a plurality of flow regulating valve 3 and a plurality of end resin in place detection component 4 are located in the chamber of perfusion mold 1, perfusion pipeline 2 includes main pipeline 21, a plurality of branch pipeline 22 and a plurality of capillary pipeline 23, main pipeline 21 extends along the length direction of perfusion mold 1, and main pipeline 21 extends from one end of perfusion mold 1 and is adjacent to the other end of perfusion mold 1, one end of branch pipeline 22 is connected to main pipeline 21 and is communicated with main pipeline 21, and the other end of branch pipeline 22 extends in the direction away from main pipeline 21, one end of capillary pipeline 23 is connected to branch pipeline 22 and is communicated with branch pipeline 22, and the other end of capillary pipeline 23 extends in the direction away from branch pipeline 22. The resin needing perfusion will flow into main pipeline 21, then flow into a plurality of branch pipeline 22, then flow into a plurality of capillary pipeline 23, and finally inject into the chamber of perfusion mold 1. Perfusion pipeline 2 constructs a plurality of sub -zone flow guide channels through main pipeline 21, a plurality of branch pipeline 22 and a plurality of capillary pipeline 23, these flow guide channels are optimized layout according to the shape and structural characteristics of blade, starting from perfusion inlet, gradually branching and extending to each part of blade, and the production efficiency is greatly improved.

[0031] The plurality of branch pipes 22, the plurality of flow regulating valves 3 and the plurality of end resin in place detection components 4 are in one-to-one correspondence, the flow regulating valve 3 is connected to the corresponding branch pipe 22, the end resin in place detection component 4 corresponds to the flow regulating valve 3 and is away from the main pipe 21, the input end of the controller is electrically connected to the plurality of end resin in place detection components 4, and the output end of the controller is electrically connected to the plurality of flow regulating valves 3 and is used for respectively controlling the opening and closing of the plurality of flow regulating valves 3. The plurality of flow regulating valves 3 are respectively arranged in the plurality of branch pipes 22, the opening and closing of the plurality of branch pipes 22 are realized by respectively controlling the opening and closing of the plurality of flow regulating valves 3, and the resin flow can be accurately regulated according to the perfusion requirements of different parts. At the same time, the end resin in place detection component 4 corresponds to the flow regulating valve 3 and is away from the main pipe 21, so that the end resin in place detection component 4 is located at the edge away from the injection area. When the end resin in place detection component 4 detects resin, it indicates that the resin in the area has been filled and does not need to be injected again. The end resin in place detection component 4 will send a signal to the controller, and the controller will send a control instruction to the corresponding flow regulating valve 3 and control the flow regulating valve 3 to close after receiving the signal. Through the arrangement of the perfusion pipe 2 and the flow regulating valve 3, it is ensured that the resin is uniformly perfused in the perfusion mold 1, effectively reduces the generation of defects such as bubbles and voids, improves the perfusion quality, and enhances the performance of the blade. Through detection, the internal defect generation rate of the blade produced by the technology can be reduced from 15% to less than 5%, which greatly improves the structural strength and fatigue life of the blade.

[0032] The plurality of branch pipes 22 are distributed along the two sides of the main pipe 21, and the branch pipe 22 extends outwardly along the resin injection direction from one end of the main pipe 21. The inclination angle between the branch pipe 22 and the main pipe 21 is 30-70 degrees.

[0033] The plurality of branch pipes 22 are distributed along the two sides of the main pipe 21, and the branch pipe 22 extends outwardly along the resin injection direction from one end of the main pipe 21. The inclination angle between the branch pipe 22 and the main pipe 21 is 30-70 degrees.

[0034] In the embodiment, the perfusion mold 1 includes a left mold 11 and a right mold 12, and the left mold 11 and the right mold 12 are detachably connected. The perfusion pipe 2 is distributed on the inner wall surface of the left mold 11 and the right mold 12.

[0035] The output end of the controller is electrically connected to the plurality of flow regulating valves 3 and is used to control the opening degree of the plurality of flow regulating valves 3 respectively, and the flow regulating valve 3 on the branch pipeline 22 can accurately regulate the resin flow according to the perfusion demand of different parts. For example, in the blade root and other areas with large stress and complex structure, the resin flow is moderately increased through the flow regulating valve 3 to ensure that the perfusion of this part is completed quickly and sufficiently; and in the blade tip and other parts with relatively simple structure, the resin flow is reduced to ensure the uniformity of the overall perfusion.

[0036] In the embodiment, the flow regulating valve 3 is located in the branch pipeline 22 close to one end of the main pipeline 21, that is, the flow regulating valve 3 is arranged at the connection between the branch pipeline 22 and the main pipeline 21, which is convenient for installation and arrangement.

[0037] The end resin in-place detection component 4 is arranged at the end of the branch pipeline 22 away from the main pipeline 21, so that the end resin in-place detection component 4 has high installation and connection stability. Of course, in other embodiments, the end resin in-place detection component 4 can also be arranged in other areas away from the injection inlet, and the specific position is not limited. Preferably, the end resin in-place detection component 4 is an end resin in-place detection sensor.

[0038] The integrated blade high-efficiency perfusion device also comprises a vacuum pumping component, which is located outside the perfusion mold 1 and is connected to the perfusion mold 1 and communicates with the chamber in the perfusion mold 1. The vacuum pumping component is used to extract the air in the chamber of the perfusion mold 1, so that a negative pressure is formed in the perfusion mold 1, and the resin in the perfusion pipeline 2 is quickly injected into the perfusion mold 1. Specifically, the controller starts the vacuum pumping component to extract the air in the perfusion mold 1 to a predetermined vacuum degree of 850-950 mbar. Then, the resin is slowly injected from the perfusion pipeline 2, and the flow regulating valve 3 is opened to adjust the resin flow according to the demand of different parts of the blade. Preferably, the controller is electrically connected to the vacuum pumping component and is used to control the opening and closing and output power of the vacuum pumping component.

[0039] The integrated blade high-efficiency perfusion device also comprises a pressure perfusion component, which is located outside the perfusion mold 1 and is connected to the main pipeline 21 and communicates with the main pipeline 21. The pressure perfusion component provides pressure and drives the resin to be injected into the perfusion pipeline 2, so that the resin in the perfusion pipeline 2 is quickly injected into the perfusion mold 1.

[0040] The vacuum assisted infusion process is combined with the pressure infusion. Firstly, the infusion mold 1 is extracted to a vacuum state. In the vacuum environment, the resin is injected from the infusion inlet of the infusion pipeline 2 through the pressure infusion component. After the resin starts to flow in the infusion pipeline 2, the pressure of 10 to 18 MPa is gradually applied. The application of the pressure can accelerate the flow speed of the resin, overcome the resistance of the resin flowing in the complex mold structure, and make the resin rapidly fill into each corner of the blade. For example, under the condition that the vacuum degree reaches 180 mbar, the pressure is slowly increased to 18 MPa in the time interval after the infusion starts, then the pressure is maintained stable in the time interval, and finally the pressure is gradually reduced to the normal pressure in the time interval when the infusion is about to be completed. After the infusion is completed, the infusion mold 1 is kept under the specific temperature and pressure conditions to make the resin sufficiently solidify. After the solidification is completed, the infusion mold 1 is opened, the formed blade is taken out, and the blade is subjected to subsequent trimming and detection.

[0041] In the process, after the resin starts to flow in the infusion pipeline 2 and the infusion mold 1, the pressure is gradually applied according to the set pressure curve, and the flow condition and the pressure change of the resin are closely monitored in the infusion process. Preferably, the controller is electrically connected to the pressure infusion component and is used to control the switch and the output power of the pressure infusion component.

[0042] The integrated molding blade high-efficiency infusion device of the embodiment significantly shortens the infusion time by means of the optimized infusion mold design and the high-efficiency infusion process. Compared with the traditional infusion technology, the infusion time can be shortened by more than 35%, which greatly improves the production efficiency of the blade and reduces the production cost. The infusion quality is improved. By means of the setting of the partitioned flow channel and the flow regulating valve 3 of the infusion pipeline 2 and the reasonable pressure control, the uniform infusion of the resin in the infusion mold 1 is ensured, and the generation of defects such as bubbles and voids is effectively reduced. Through detection, the internal defect generation rate of the blade produced by the technology can be reduced from 15% to less than 5%, which greatly improves the structural strength and fatigue life of the blade. The performance of the blade is enhanced. The optimized resin formula makes the combination of the resin and the reinforcing fiber more compact, and the overall performance of the blade is improved. For example, the tensile strength of the blade is increased by 10 MPa, and the bending strength is increased by 30 MPa, which meets the manufacturing requirements of the high-performance blade.

[0043] The above only discloses the preferred embodiment of the utility model, and of course cannot limit the scope of the utility model, so the equivalent changes made according to the utility model claim still belong to the scope covered by the utility model.

Claims

1. A high-efficiency injection device for integrated molded blades, characterized in that, It includes a pouring mold, a pouring pipeline, a controller, multiple flow regulating valves, and multiple end resin arrival detection components. The pouring pipeline, the multiple flow regulating valves, and the multiple end resin arrival detection components are all located within the cavity of the pouring mold. The pouring pipeline includes a main pipeline, multiple branch pipelines, and multiple capillary pipelines. The main pipeline extends along the length of the pouring mold and extends from one end of the mold to adjacent to the other end. One end of each branch pipeline is connected to and communicates with the main pipeline, and the other end of each branch pipeline extends away from the main pipeline. One end of the capillary is connected to and communicates with the branch pipeline, and the other end of the capillary extends away from the branch pipeline. Multiple branch pipelines, multiple flow regulating valves, and multiple end resin arrival detection components correspond one-to-one. Each flow regulating valve is connected to a corresponding branch pipeline, and each end resin arrival detection component corresponds to a flow regulating valve and is located away from the main pipeline. The input terminal of the controller is electrically connected to multiple end resin arrival detection components, and the output terminal of the controller is electrically connected to multiple flow regulating valves and is used to control the opening and closing of each flow regulating valve.

2. The integrated molded blade high-efficiency injection device as described in claim 1, characterized in that, The integrated molded blade high-efficiency injection device also includes a vacuum pumping component, which is located outside the injection mold and is connected to the injection mold and communicates with the chamber inside the injection mold.

3. The integrated molded blade high-efficiency injection device as described in claim 2, characterized in that, The controller is electrically connected to the vacuum pumping component and is used to control the switching of the vacuum pumping component and its output power.

4. The integrated molded blade high-efficiency injection device as described in claim 1, characterized in that, The integrated molded blade high-efficiency injection device also includes a pressure injection component, which is located outside the injection mold and is connected to and communicates with the main pipeline.

5. The integrated molded blade high-efficiency injection device as described in claim 4, characterized in that, The controller is electrically connected to the pressure infusion component and is used to control the switching of the pressure infusion component and its output power.

6. The integrated molded blade high-efficiency injection device as described in claim 1, characterized in that, The flow regulating valve is located at one end of the branch pipeline near the main pipeline.

7. The integrated molded blade high-efficiency injection device as described in claim 1, characterized in that, The end resin arrival detection component is located at the end of the branch pipeline away from the main pipeline.

8. The integrated molded blade high-efficiency injection device as described in claim 1, characterized in that, The capillary channels are all connected to the branch channels and interconnected, and the capillary channels extend in different directions.

9. The integrated molded blade high-efficiency injection device as described in claim 1, characterized in that, The end resin arrival detection component is an end resin arrival detection sensor.

10. The integrated molded blade high-efficiency injection device as described in claim 1, characterized in that, The injection mold includes a left mold and a right membrane, which are detachably connected. The injection pipeline is distributed on the inner wall surfaces of the left mold and the right membrane.

Images