CN110789155A - Automatic forming equipment and laying process method for carbon fibers of offshore wind power blade - Google Patents
Automatic forming equipment and laying process method for carbon fibers of offshore wind power blade Download PDFInfo
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- CN110789155A CN110789155A CN201911092056.3A CN201911092056A CN110789155A CN 110789155 A CN110789155 A CN 110789155A CN 201911092056 A CN201911092056 A CN 201911092056A CN 110789155 A CN110789155 A CN 110789155A
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- offshore wind
- carbon fiber
- power blade
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
- B29C70/38—Automated lay-up, e.g. using robots, laying filaments according to predetermined patterns
- B29C70/382—Automated fiber placement [AFP]
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
- B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
- B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
- B29C2035/0822—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation using IR radiation
Abstract
The invention relates to the technical field of wind power generation equipment, in particular to automatic carbon fiber forming equipment and a laying process method for an offshore wind power blade. The horizontal three-degree-of-freedom parallel mechanism comprises a laying component for laying fibers and a three-axis adjustable control mechanism for realizing the coordinate transformation of a fiber laying mechanism and realizing multi-axis motion. The conveying device of the filament paving mechanism adopts a speed sensor, the multi-pressure roller controls the filament bundles to be conveyed to a filament bundle tension control device, the filament bundles are guaranteed not to slip by increasing the surface roughness, the filament bundles respectively pass through a reconduction mechanism and a cutting device with cylinder control, the filament bundles are melted under the action of an infrared radiation lamp tube heating device, and finally, the carbon fiber laying is completed through the pressurization cooling treatment of a cooling device. According to the invention, the fiber laying head is driven to complete the laying work of the carbon fibers by the motion platform capable of realizing multi-axis motion, the laying process is completed, the stability and the uniformity of the laying can be ensured, the real-time feedback can be realized by the monitoring device, the fiber laying process can be monitored, and the fiber laying quality can be improved.
Description
Technical Field
The invention relates to the technical field of wind power generation equipment, in particular to automatic carbon fiber forming equipment and a laying process method for an offshore wind power blade.
Background
The high-performance thermoplastic resin-based composite material has the advantages that the fusion welding can be realized, and the mechanical property of a welding point is high; excellent damage tolerance and strong adaptability to severe environment; the forming process is reversible, and the defects can be repaired on line when being found; the moisture absorption is low, and the design allowance is reduced; the product can be stored indefinitely at room temperature without refrigeration equipment, thereby reducing the storage cost.
The composite material fiber laying is a novel full-automatic composite material member manufacturing technology developed on the basis of fiber winding and automatic tape laying, and integrates advanced technologies such as a fiber laying process, fiber laying equipment, computer control, CAD/CAE/CAM and the like. Compared with the automatic winding technology, the automatic fiber laying technology can form convex surfaces, concave surfaces and complex double-curvature curved surfaces. A plurality of prepreg fiber bundles are integrated into a prepreg tape under a compression roller according to the laying path and direction determined by a multi-shaft laying head according to the design requirement, and then laid on the surface of a core mold, the prepreg yarn is heated and softened, compacted and shaped, and the whole forming process is coordinated and controlled by a computer through numerical control programming.
The in-situ forming technology for thermoplastic composite material is a technological process [9] of positioning, laying, compacting and fast solidifying by a filament spreading machine with special device according to the requirement of digital model, accumulating layer by layer in the thickness direction of the structural member and finishing the manufacture of the structural member when the designed thickness is reached. The technology is different from the traditional non-autoclave molding process, is suitable for preparing oversized and ultra-thick composite material components, is combined with the automatic fiber laying technology, has high intelligent degree and high production efficiency, and has wide application prospects in the fields of aerospace, petrochemical industry and the like.
At present, the research on automatic laying forming in China is just started, most of the research is directed at the research and development of principle models, the research on the process is less, and most of the research is directed at thermosetting composite materials. Meanwhile, import restriction and technical blockade are implemented in China abroad, and the effort of developing an automatic carbon fiber laying technology with independent intellectual property rights is of great significance to the development of the composite material industry in China.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides the equipment and the method for automatically forming the carbon fiber of the offshore wind power blade, which are applied to a ship complex curved surface laying system, so that the fiber laying can be conveniently finished, the manufacturing procedures of composite materials are greatly reduced, and the processing efficiency is improved.
In order to achieve the technical purpose, the invention provides the following technical scheme:
the utility model provides an offshore wind power blade carbon fiber automatic molding equipment which characterized in that includes: including three degree of freedom parallel mechanism lathe, multiaxis connecting device, motion transmission device, silk bundle tension control device, silk bundle reconduction mechanism, disconnected silk device, heating device and cooling device, and carry out real-time supervision to the shop silk process through monitoring system, multiaxis connecting device uses the adjustable control mechanism of triaxial, and one end is used for connecting the motion platform, and the other end is used for connecting shop silk mechanism, silk bundle tension control device passes through cylinder control, silk bundle reconduction machine also adopts cylinder control, silk bundle reconduction mechanism installs the antifriction leading wheel, heating device passes through infrared fluorescent tube radiant heating, cooling device is through cold pressing roller pair compression roller cooling shaping.
The three-degree-of-freedom parallel machine tool is further improved, an XYZ-axis tool path is installed on the three-degree-of-freedom parallel machine tool and connected with a movable arm of a machine tool control cabinet, the movable arm is connected with a three-degree-of-freedom filament laying mechanism and connected with a three-axis adjustable control mechanism, the connection design of rotating shafts of the three-axis adjustable control mechanism is flexible, three axes of a connecting device are DEF axes, a D axis is perpendicular to E and F, the moving range of the D axis is +/-45 degrees, and the E axis and the F axis can rotate 270 degrees around the center of the D axis.
The invention further improves that the motion conveying device consists of a driving roller and an auxiliary pressing roller for conveying tows and a guide wheel, wherein the auxiliary pressing roller is connected with an air cylinder, the driving roller is connected with a motor, the air cylinder is in pressure contact with the driving roller by controlling the auxiliary pressing roller, the surface of the auxiliary pressing roller can increase friction through special treatment, the guide wheel is connected with a speed sensor, the speed sensor controls the rotating speed of the motor according to the rotating speed of the guide wheel, and the lower end of the conveying device is connected with the tow tension control device.
The invention further improves the structure that an air cylinder of the tow tension control device is fixed on a support through a bolt, the lower end of the air cylinder is connected with a moving guide wheel for guiding fiber transmission, the guide wheel is adhered with a material with abrasive particles and can be used for periodic replacement, and the other end of the tow tension control device is fixed on a support frame through a shaft, is provided with a groove and is matched with the guide wheel at the other end.
The invention further improves the device, the tow reconveying device consists of a driving wheel, an auxiliary wheel, an air cylinder and a reconveying support, wherein the auxiliary wheel is connected with the air cylinder, the auxiliary wheel is fixed on the reconveying support through a transmission shaft and a bearing, the reconveying support is connected with the air cylinder through a bolt, wheel grooves which correspond to one another are arranged above the driving wheel, and a cutting device is installed at the lower end of the reconveying device.
The invention is further improved, the wire breaking device is connected with the fixed shaft through the air cylinder, the cutter is fixed on the shaft through the bolt, the cutter plate is fixed on the side plate through the bolt connection at the other side of the cutter, and the heating device is arranged at the lower end of the wire breaking device.
The invention further improves that the heating device comprises an infrared heat light source, a heat source tray, a temperature sensor, a temperature controller and a power supply, wherein the infrared heat light source is fixedly connected to a support frame through the heat source tray by adopting bolts, the temperature sensor is arranged at the front end of the infrared light heat source, and the heat sensor is connected with the temperature controller and is connected with the power supply.
The cooling device is further improved, the cooling device comprises a cold pressing roller and a pressure monitoring system, double pressing rollers are used for cooling and pressurizing, the cold pressing roller shaft penetrates through the pressing roller and is fixed on a pressing roller frame through two bearings, the pressing roller frame is connected with an air cylinder, the double cold pressing rollers are arranged in a front-back mode, and the pressure monitoring device is used for monitoring pressure change in the laying process.
The invention is further improved, and the monitoring system mainly comprises three parts, namely a speed monitoring system, a temperature monitoring system and a pressure monitoring system which respectively cooperate with the motion transmission device, the heating device and the cooling device to realize the real-time monitoring of the laying process.
The invention further improves a laying process method of the offshore wind power blade carbon fiber automatic forming equipment, and is characterized in that a conveying device of the equipment needs to ensure that the presoaked yarns are accurately conveyed to the lower part of a laying roller, the coordinated movement of a yarn conveying driving roller and a conveying tow is generated by friction, the yarn conveying length is obtained through calculation, the yarn conveying length is detected in real time, and the slipping phenomenon is avoided.
The invention is further improved, and the research of the heating process comprises the following steps:
(1) by selecting the power of the heating lamp, the temperature of the filament is calculated according to the formula, and the radiation intensity of the infrared filament is obtained through Stefan-Boltzmann law:
Ea＝εσTa
in the formula EaIs the intensity of the filament radiation; epsilon is the emissivity of the filament; σ is Boltzmann's constant, which is 5.7X 10-8W/(m 2. K4); t isaIs the filament temperature;
(2) acquiring data through an experiment (1), determining a placement position, and placing an infrared lamp tube in an infrared radiation emitting area;
(3) by analyzing and selecting a tubular infrared heating lamp and selecting a long-wave infrared heating tube YC-4025 and 355, the lamp tube can directly radiate and lay fibers or reflect the fibers onto a laying layer through materials to store heat energy and melt the fibers.
The invention further improves and researches an automatic forming method of offshore wind power blade carbon fiber, and needs to select optimal influence factors through related process tests or public service model establishment:
(1) considering from the heat transfer direction, a one-dimensional, two-dimensional or three-dimensional heat transfer model can be established, and the distribution conditions of different time and temperature at different positions in the fiber bundle and the relation among time, temperature and position are researched;
(2) establishing a temperature field dynamic constant temperature model, and determining the relation between the effect of heat radiation on the laying material and the temperature according to the law of energy conservation;
(3) after the influence effect of the temperature field is determined, the whole heating process is monitored in real time according to the acquired experimental data, and the monitoring mainly comprises the following steps:
1) the temperature sensor can detect the temperature change and transmit the signal to the temperature controller
2) The temperature controller adjusts the power of the heating device according to the signal
3) After the temperature reaches the normal value, the temperature sensor does not transmit signals any more. The temperature sensor can detect the temperature change of the heat source in real time in the whole process and adjust the temperature in real time.
The invention further improves the pressure detection device, obtains the most numerical value of pressurization through experiments, controls the pressure value in a certain range, outputs signals by the pressure sensor when the pressure of the compression roller on the spreading wire is changed, and controls the cylinder to move by the pressure controller so as to complete the control of the pressure of the compression roller.
The invention has the beneficial effects that: a horizontal three-degree-of-freedom parallel mechanism, a laying component for laying fibers, a three-axis adjustable control mechanism for realizing the coordinate conversion of a fiber laying mechanism and the multi-axis movement, a conveying device of the fiber laying mechanism adopts a speed sensor, a plurality of press rollers control the transmission of tows to a tow tension control device, the tows are ensured not to slip by increasing the surface roughness, and pass through a reconveying mechanism and a cutting device controlled by a cylinder respectively, melting tows under the action of an infrared radiation lamp tube heating device, finally completing the laying of carbon fibers through the pressurization cooling treatment of a cooling device, realizing a multi-axis moving motion platform, driving a fiber laying head to complete the laying work of the carbon fibers, and completing the laying process, can guarantee to spread steadily even of putting, can also feed back in real time through the monitoring devices from the area, the silk process is spread in the control, improves and spreads the silk quality.
Drawings
FIG. 1 is a schematic diagram of the general structure of the present invention;
FIG. 2 is a schematic diagram of a three-degree-of-freedom placement mechanism according to the present invention;
FIG. 3 is a schematic view of the placement device of the present invention;
FIG. 4 is a schematic view of a coupling device of the present invention;
FIG. 5 is a schematic view of the transmission of the present invention;
FIG. 6 is a schematic view of the clamping device of the present invention;
FIG. 7 is a schematic view of a structure of a reconduction device of the present invention;
FIG. 8 is a schematic view of the cutting apparatus of the present invention;
FIG. 9 is a schematic diagram of a heating device and temperature control system of the present invention;
fig. 10 is a schematic structural view of the cooling device of the present invention.
In the figure, 1-a hydraulic driving device, 2-a moving guide rail, 3-a moving guide rail, 4-a control plate, 5-a moving track, 6-a supporting device, 7-a connecting cable, 8-a moving control cabinet, 9-a multi-shaft conversion device, 10-a filament laying mechanism, 11-a clamping device, 12-a wind power blade, 13-a positioning device, 15-a connecting device, 16-a bolt, 17-a fixed shaft, 18-a connecting device, 19-a bearing frame, 20-a supporting frame, 21-a guide wheel mechanism, 22-a transmission shaft, 23-a shaft hole, 24-a cutting device, 25-a heating device, 26-a cooling device, 27-a guide wheel, 28-a guide wheel supporting mechanism, 29-a re-guide device and 30-a supporting frame, 31-air cylinder, 32-filament breaking device, 33-D shaft, 34-E shaft, 35-F shaft, 36-filament bundle, 37-guide wheel, 38-driving roller, 39-auxiliary pressing roller, 40-air cylinder, 41-pressing bracket, 42-pressing roller, 43-extruding device, 44-bolt, 45-air cylinder, 46-re-guide bracket, 47-bearing, 48-auxiliary wheel, 49-driving wheel, 50-air cylinder, 51-cutting knife, 52-heat source tray, 53-infrared heat source, 54-temperature controller, 55-power supply, 56-temperature sensor, 57-air cylinder, 58-pressing roller frame, 59-cold pressing roller shaft and 60-cold pressing roller.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example (b): as shown in fig. 1, in the moving platform of the present invention, a hydraulic driving device 1, moving guide rails 2 and 3, a control panel 4, a moving crawler 5, a supporting device 6, a connecting cable 7, a moving control cabinet 8, a multi-axis conversion device 9, a thread laying mechanism 10, a clamping device 11, a wind power blade positioning device 13, and a wind power blade 12 are mainly used.
In this embodiment, as shown in fig. 2, in the design of the three-degree-of-freedom laying mechanism, the upper end of the three-degree-of-freedom laying mechanism is used for connecting the three-degree-of-freedom movement and the movement platform with the three-axis adjustable control mechanism, the lower end connecting device is connected with the two connecting devices 15 and 18 through a bolt in the middle 16, the fixed shaft 17 connects the bearing frames 19 of the laying device, and the bolt 16 connects the bearing frames 19 on the two sides together to form a stable laying environment.
In the embodiment, the laying device shown in fig. 3 is a guide wheel 27 for controlling the stable conveying of the tows, a guide wheel supporting mechanism 28 is fixed on the supporting frame 20 by means of a bolt 16 connection, an air cylinder 31 for controlling the reconveying device 29 is connected with the guide wheel mechanism 21 and is matched with the transmission shaft 22 to control the reconveying of the tows, and a cutting device 24 for controlling the cutting of the tows is positioned at the lower end of the reconveying device 29 and is stably connected to the bearing frame through the bearing frame 19. The shaft hole 23 through the bearing frame 19 is used for loading the wire breaking device 32. The heating means 25 at the lowermost end of the device are fixed to the support frame 19 by means of a screw connection with special grooves. The cooling device 26 for conveying the tows is controlled by an air cylinder connected to the compression roller support frame.
In this embodiment, as shown in fig. 4, a three-axis adjustable control mechanism is used for the connecting device for connecting the movement mechanism, and in the beginning of the design, in order to achieve flexibility of connection of the rotating shaft, three axes of the connecting device are named as DEF axes respectively, as shown in fig. 4, the D axis 33 is perpendicular to the E axis and the F axis, and functions of the connecting device are similar to knee joints, the range of motion of the D axis is ± 45 °, the E axis 34 and the F axis 35 can rotate 270 ° around the axis, wherein the E axis can be connected with the movement platform, the movement space of the processing is greatly increased, and the F axis is used for connecting the wire laying head, and by connecting to the bearing frame, the reverse processing can be achieved, and the processing precision is greatly improved.
In the present embodiment, as shown in fig. 5, in the present invention, the transported filament bundle 36 passes through a guide wheel 37 with a speed sensor, the guide wheel 37 is transported to a motor controlling the motion of a driving roller 38 through the sensor according to the actual speed, the motor adjusts the current according to the input signal, the rotating speed is reduced, in order to ensure the normal transportation of the filament bundle 36, an auxiliary pressure roller 39 is added, the auxiliary pressure roller 39 is controlled through an air cylinder, and the air cylinder changes the stroke according to the feedback signal, and adjusts the friction between the two pressure rollers.
In the present embodiment, as shown in fig. 6, in the present invention, the clamping device controls the stroke of the pressing bracket 41 through the air cylinder 40, the pressing bracket 41 is connected with the pressing roller 42 through the pressing roller shaft, the filament bundle pressing device is configured as a roller and is matched with the pressing device 43 on the lower side of the roller, the pressing device is configured with a corresponding groove according to the size of the roller, and corresponding to the groove, the pressure may be increased more under the control of the air cylinder during the pressing process, so that the pressing device is fixed on the bearing frame through the bolt 44. On the pinch roller, select for use special anti-skidding material, can increase and the fibrous frictional force of conveying, can the appearance of skidding to a certain extent less.
In the present embodiment, as shown in fig. 7, the reconveying device is used to solve the problem of the low efficiency of tow transport after the action of the re-press device, and the tow reconveying device is controlled by two wheels, one of which is a driving wheel 49 connected to a motor and the other of which is an auxiliary wheel 48 connected to a cylinder 45, the auxiliary wheel 48 is fixed to the reconveying support 46 via a transmission shaft and a bearing 47, and the reconveying support 46 is connected to the cylinder via bolts, and similarly to the previous wheel, the wheel of the reconveying device is provided with an anti-slip material to increase friction.
In this embodiment, as shown in fig. 8, the cutting device is connected to a fixed shaft through a cylinder 50, a cutter 51 fixed to the shaft through a bolt, and a cutter plate is fixed to a side plate on the other side of the cutter 51 through a bolt.
In this embodiment, as shown in fig. 9, the heating device, which is fixed by bolts to connect the heat source tray 52 to the support frame 19, includes an infrared heat source 53 for radiant heating, a temperature controller 54 for heat control of the infrared lamp, and a temperature sensor 56. According to the carbon fiber filament laying amount, the type of the heating lamp tube is selected, the lamp tube tray with the lamp tube size groove is fixed through bolts, the temperature sensor 56 is installed at the front end of the heating infrared lamp tube, and the temperature sensor 56 is connected with the temperature controller 54 and the power supply 55.
In this embodiment, as shown in fig. 10, the cooling device includes a cold pressing roller 60 and a pressure monitoring system, and adopts double pressing rollers to cool and pressurize, the cold pressing roller shaft 59 passes through the cold pressing roller 60 and is fixed on the pressing roller frame 58 through two bearings, the pressing roller frame 58 is connected with the cylinder 57, the double cold pressing roller shaft 59 adopts a front-back arrangement design, the cooling device is provided with two pressing rollers, and the pressing rollers are connected to the shaft and connected to the pressing roller frames on two sides through the bearings. The pressure of the cooling device directly affects the quality of the formed material in the chamber, therefore, the invention adds a pressure measuring system. When a pressure sensor of the fiber paving device receives pressure change, the pressure sensor converts the pressure change into the change of output voltage, a PLC analog input module collects voltage signals, and after the voltage signals are processed by a controller, the analog output module transmits control voltage to a motor driver, so that the pressure of the compression roller is controlled in real time.
In the actual processing process, according to actual processing parameters, the processing temperature obtained by experiments is taken as a rated value, the temperature is ensured to change within a certain range, and the main temperature detection comprises the following steps:
(1) the temperature sensor will detect the temperature change and transmit a signal to the temperature controller.
(2) The temperature controller adjusts the power of the heating device according to the signal, and the temperature sensor can detect the temperature change of the heat source in real time to perform real-time adjustment control.
The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (11)
1. The utility model provides an offshore wind power blade carbon fiber automatic molding equipment which characterized in that includes: including three degree of freedom parallel mechanism lathe, multiaxis connecting device, motion transmission device, silk bundle tension control device, silk bundle reconduction mechanism, disconnected silk device, heating device and cooling device, and carry out real-time supervision to the shop silk process through monitoring system, multiaxis connecting device uses the adjustable control mechanism of triaxial, and one end is used for connecting the motion platform, and the other end is used for connecting shop silk mechanism, silk bundle tension control device passes through cylinder control, silk bundle reconduction machine also adopts cylinder control, silk bundle reconduction mechanism installs the antifriction leading wheel, heating device passes through infrared fluorescent tube radiant heating, cooling device is through cold pressing roller pair compression roller cooling shaping.
2. The offshore wind power blade carbon fiber automatic forming equipment is characterized in that the three-degree-of-freedom parallel machine tool is provided with an XYZ-axis tool path and is connected with a movable arm of a machine tool control cabinet, the movable arm is connected with a three-degree-of-freedom filament spreading mechanism and is connected with a three-axis adjustable control mechanism, the three-axis adjustable control mechanism has flexibility in rotating shaft connection design, three axes of a connecting device are DEF axes, the D axis is perpendicular to E and F, the moving range of the D axis is +/-45 degrees, and the E axis and the F axis can rotate around 270 degrees.
3. The offshore wind power blade carbon fiber automatic forming equipment is characterized in that the moving conveying device consists of a driving roller and an auxiliary pressing roller for conveying tows and a guide wheel, the auxiliary pressing roller is connected with a cylinder, the driving roller is connected with a motor, the cylinder is in pressure contact with the driving roller by controlling the auxiliary pressing roller, the surface of the auxiliary pressing roller is specially processed to increase friction, the guide wheel is connected with a speed sensor, the speed sensor controls the rotating speed of the motor according to the rotating speed of the guide wheel, and the lower end of the conveying device is connected with the tow tension control device.
4. The offshore wind power blade carbon fiber automatic forming equipment is characterized in that a cylinder of the tow tension control device is fixed on a support through a bolt, the lower end of the cylinder is connected with a moving guide wheel for guiding fiber transmission, the guide wheel is pasted with a material with abrasive particles and can be used for periodic replacement, and the other end of the tow tension control device is fixed on a support frame through a shaft and is provided with a groove and matched with the guide wheel at the other end.
5. The offshore wind power blade carbon fiber automatic forming equipment is characterized in that the tow reconduction device consists of a driving wheel, an auxiliary wheel, a cylinder and a reconduction support, the auxiliary wheel is connected with the cylinder and fixed on the reconduction support through a transmission shaft and a bearing, the reconduction support is connected with the cylinder through a bolt, wheel grooves corresponding to one another are formed above the driving wheel, and a cutting device is installed at the lower end of the reconduction device.
6. The offshore wind power blade carbon fiber automatic forming equipment is characterized in that the wire breaking device is connected with the fixed shaft through the air cylinder and is fixed on the cutter on the shaft through the bolt, the other side of the cutter fixes the cutter plate on the side plate through the bolt, and the lower end of the wire breaking device is provided with the heating device.
7. The offshore wind power blade carbon fiber automatic forming equipment is characterized in that the heating device comprises an infrared heat light source, a heat source tray, a temperature sensor, a temperature controller and a power supply, the infrared heat light source is fixed on the support frame through the heat source tray by adopting bolt connection, the temperature sensor is installed at the front end of the infrared light heat source, and the heat sensor is connected with the temperature controller and is connected with the power supply.
8. The offshore wind power blade carbon fiber automatic forming equipment is characterized in that the cooling device comprises a cold pressing roller and a pressure monitoring system, double rollers are adopted for cooling and pressurizing, the cold pressing roller shaft penetrates through the pressing roller wheel and is fixed on a pressing roller frame through two bearings, the pressing roller frame is connected with a cylinder, the double cold pressing rollers are arranged in a front-back mode, and the pressure monitoring device is used for monitoring pressure change in the laying process.
9. The offshore wind power blade carbon fiber automatic forming equipment as claimed in claim 1, wherein the monitoring system mainly comprises three parts, namely a speed monitoring system, a temperature monitoring system and a pressure monitoring system, which respectively cooperate with the motion transmission device, the heating device and the cooling device to realize real-time monitoring of the laying process. Considering from the heat transfer direction, a one-dimensional, two-dimensional or three-dimensional heat transfer model can be established, and the distribution situation of the temperature at different positions in the fiber bundle at different moments and the relation among time, temperature and position can be researched.
10. A laying process method of an offshore wind power blade carbon fiber automatic forming device is characterized in that a conveying device of the device needs to ensure that prepreg yarns are accurately conveyed to the lower portion of a laying roller, a yarn conveying driving roller and conveying tows move coordinately through friction force, the yarn conveying length is obtained through calculation, real-time detection is carried out on the yarn conveying length, and the phenomenon of slipping is avoided.
11. The laying process method of the offshore wind power blade carbon fiber automatic forming equipment according to claim 10, characterized in that the heating process research comprises the following steps:
(1) by selecting the power of the heating lamp, the temperature of the filament is calculated according to the formula, and the radiation intensity of the infrared filament is obtained through Stefan-Boltzmann law:
Ea＝εσTa
in the formula EaIs the intensity of the filament radiation; epsilon is the emissivity of the filament; σ is Boltzmann's constant, which is 5.7X 10-8W/(m 2. K4); t isaIs the filament temperature;
(2) acquiring data through an experiment (1), determining a placement position, and placing an infrared lamp tube in an infrared radiation emitting area;
(3) by analyzing and selecting a tubular infrared heating lamp and selecting a long-wave infrared heating tube YC-4025 and 355, the lamp tube can directly radiate and lay fibers or reflect the fibers onto a laying layer through materials to store heat energy and melt the fibers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911092056.3A CN110789155A (en) | 2019-11-08 | 2019-11-08 | Automatic forming equipment and laying process method for carbon fibers of offshore wind power blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911092056.3A CN110789155A (en) | 2019-11-08 | 2019-11-08 | Automatic forming equipment and laying process method for carbon fibers of offshore wind power blade |
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| CN112180720A (en) * | 2020-09-08 | 2021-01-05 | 武汉大学 | Fiber placement process parameter model construction method and system based on simulation learning |
| CN112223788A (en) * | 2020-09-08 | 2021-01-15 | 武汉大学 | Automatic fiber laying system and laying track planning method thereof |
| CN113878901A (en) * | 2021-10-09 | 2022-01-04 | 北京航空航天大学 | Desktop type miniaturized automatic wire laying equipment and control system |
| CN114594811A (en) * | 2020-12-03 | 2022-06-07 | 上海飞机制造有限公司 | Temperature adjusting method, device, equipment and storage medium in material laying process |
| CN115157720A (en) * | 2022-07-18 | 2022-10-11 | 曜福精工技术(江苏)有限公司 | Automatic laying head and laying method for composite material silk ribbon |
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| CN113878901A (en) * | 2021-10-09 | 2022-01-04 | 北京航空航天大学 | Desktop type miniaturized automatic wire laying equipment and control system |
| CN113878901B (en) * | 2021-10-09 | 2023-06-02 | 北京航空航天大学 | Desktop type miniaturized automatic wire laying equipment and control system |
| CN115157720A (en) * | 2022-07-18 | 2022-10-11 | 曜福精工技术(江苏)有限公司 | Automatic laying head and laying method for composite material silk ribbon |
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