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WO2022067756A1 - Procédé de commande pour l'enroulement et le durcissement de fibres, et dispositif d'enroulement de fibres durcissant à la lumière - Google Patents

Procédé de commande pour l'enroulement et le durcissement de fibres, et dispositif d'enroulement de fibres durcissant à la lumière Download PDF

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Publication number
WO2022067756A1
WO2022067756A1 PCT/CN2020/119645 CN2020119645W WO2022067756A1 WO 2022067756 A1 WO2022067756 A1 WO 2022067756A1 CN 2020119645 W CN2020119645 W CN 2020119645W WO 2022067756 A1 WO2022067756 A1 WO 2022067756A1
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WIPO (PCT)
Prior art keywords
light
winding
fiber
illumination
fibers
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2020/119645
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English (en)
Chinese (zh)
Inventor
邓飞
押川克彦
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Cone Technology Co Ltd
Original Assignee
Shenzhen Cone Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen Cone Technology Co Ltd filed Critical Shenzhen Cone Technology Co Ltd
Priority to PCT/CN2020/119645 priority Critical patent/WO2022067756A1/fr
Publication of WO2022067756A1 publication Critical patent/WO2022067756A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
    • B29C63/02—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material
    • B29C63/04—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material by folding, winding, bending or the like
    • B29C63/06—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material by folding, winding, bending or the like around tubular articles
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques

Definitions

  • the application belongs to the technical field of high-voltage equipment, and in particular relates to a control method for filament winding and curing, and a light-curing filament winding device.
  • gas storage tanks within them are also facing increasing technical requirements.
  • gas storage tanks for storing hydrogen require high tightness, high temperature resistance, corrosion resistance and high pressure resistance.
  • high-pressure containers such as hydrogen storage tanks are mostly made of carbon fiber tapes wound outside the inner tank, and then thermally cured in a high-temperature furnace after winding.
  • the winding direction of the carbon fiber is pre-set with a program.
  • the winding position of the fibers will shift and will not be wound according to the program settings, so that the fibers are wound on the inner pot. It is not uniform, and it cannot be guaranteed that the final tank body will reach the strength it should have as designed. Under high pressure, the tank body may rupture, increasing the risk.
  • the purpose of the embodiments of the present application is to provide a control method for filament winding and curing and a light-curing filament winding device, aiming to solve the problem of filament winding position deviation, incomplete curing and/or failure of filament winding components such as high pressure vessels in the prior art. Or over-cured, resulting in a technical problem of reducing the overall strength.
  • a first aspect a method for controlling the winding and curing of fibers is provided, which is used to control the winding parameters of the fibers wound on the component and photo-curing the fibers in real time during the winding process, and the fibers are pre-impregnated resins. fiber, which includes the steps of:
  • the illumination intensity of the illumination light required for photocuring is increased.
  • the step of obtaining the feedback value at the illumination position through illumination and comparing the feedback value at the illumination position with a preset threshold, it is determined whether the filament winding is performed at the illumination position according to a preset program. After the step, if it is determined that filament winding is performed according to a preset program at the illumination position, the illumination intensity of the illumination light required for photocuring is reduced or maintained.
  • obtaining the feedback value at the lighting position through lighting and comparing the feedback value at the lighting position with a preset threshold to determine whether the lighting position is filament wound according to a preset program, comprising: :
  • the feedback value of light reflection is obtained through illumination, and according to the feedback value of light reflection, it is determined whether fiber winding is performed at the illumination position according to a preset program.
  • the feedback value is a change value of the light intensity of the irradiated light and the reflected light when the irradiated light is irradiated to the component and the reflected light is formed
  • the threshold value is a light intensity threshold
  • the light intensity change value is greater than or equal to the threshold value, the light intensity of the irradiation light required for photocuring is reduced or maintained.
  • the feedback value is a time interval value of self-emission of the irradiated light and acquisition of the reflected light when the irradiated light is irradiated to the component and formed reflected light
  • the threshold value is a time threshold
  • the The time interval value is compared with the threshold value
  • the illumination intensity of the illumination light required for photocuring is reduced or maintained.
  • obtaining the feedback value at the lighting position through lighting and comparing the feedback value at the lighting position with a preset threshold to determine whether the lighting position is filament wound according to a preset program, comprising: :
  • the feedback value of light scattering is obtained through illumination, and according to the feedback value of light scattering, it is determined whether fiber winding is performed at the illumination position according to a preset program.
  • the feedback value is a pixel change value of the scattering image when the irradiation light is irradiated on the component and a scattering image is formed on the component
  • the threshold is a pixel threshold
  • the pixel is The change value is compared with the threshold value
  • the illumination intensity of the illumination light required for photocuring is reduced or maintained.
  • the winding parameters of the fiber include the position parameter of the fiber, the axial feed speed of the fiber relative to the component and/or The tension at which the fibers are wound.
  • the fibers when adjusting the winding parameters of the fibers in the preset program, when the spacing distance between two adjacent sections of the fibers wound on the component is greater than a preset standard spacing distance, the fibers are lowered. Relative to the axial feed speed of the part and/or increasing the tension of the filament winding.
  • the axial feed rate of the fibers relative to the component is increased or maintained, and the tension of the fiber winding is maintained.
  • a second aspect: a light-curing fiber winding device for winding fibers on the outer surface of a component and photo-curing the fibers in real time during the winding process, wherein the fibers are fibers pre-impregnated with resin, comprising: :
  • Winding mechanism winding the fiber on the component according to a preset program
  • a light irradiation mechanism which provides the irradiation light required for light curing, detects the feedback value at the lighting position, and feeds back the feedback value to the control mechanism;
  • the control mechanism sets a preset program in which fibers are wound on the components, obtains the feedback value of the light irradiation mechanism, and determines the desired value according to the comparison between the feedback value at the lighting position and a preset threshold value. Whether the fiber winding is carried out according to the preset program at the said lighting position;
  • control the light illumination mechanism to adjust the illumination parameters of the illumination light and/or control the winding mechanism to adjust the winding parameters, and control the winding mechanism Filament winding continues on the part.
  • control mechanism controls the light irradiation mechanism to increase the light intensity of the irradiation light when the control mechanism determines that the fiber winding is not performed according to a preset program at the light irradiation position.
  • control mechanism controls the light irradiation mechanism to reduce or maintain the light intensity of the irradiation light if it is determined that the filament winding is performed at the light irradiation position according to a preset program.
  • the light irradiation mechanism further includes a detection unit, the detection unit detects a feedback value at the lighting position, and feeds back the feedback value to the control mechanism.
  • the feedback value at the illumination position detected by the detection unit includes a time interval value of the illumination light provided by the light illumination mechanism from exit to reflection, and the illumination light provided by the light illumination mechanism from exit to reflection.
  • the winding parameters of the fibers include fiber location parameters, axial feed parameters of the fibers relative to the component, and/or fiber winding tension.
  • the winding mechanism includes a base, a rotation unit and a fiber supply unit disposed on the base;
  • the component placed on the rotating unit rotates under the driving of the rotating unit to complete the subsequent fiber winding action, and the fiber supply unit is based on the instruction from the control mechanism, along the predetermined winding of the component.
  • the fibers are fed to the part while the feed direction is moving.
  • control mechanism includes a comparison unit, a fiber regulation unit and an energy regulation unit that are connected to each other;
  • the comparison unit acquires the feedback value at the illumination position and compares it with a preset threshold value, and when the feedback value is not equal to the threshold value, feeds back a corresponding adjustment signal to the fiber regulation unit and the energy regulation unit ;
  • the fiber regulation unit is connected to the fiber supply unit, and when receiving the adjustment signal fed back by the comparison unit, it adjusts the winding parameters of the fibers in the preset program, and the fiber supply unit adjusts the fiber winding parameters according to the adjustment signal.
  • the energy regulation unit is connected to the light irradiation mechanism, and when receiving the adjustment signal fed back by the comparison unit, controls the light irradiation mechanism to increase or decrease the illumination intensity of the irradiation light provided by the light irradiation mechanism.
  • the irradiation light provided by the light irradiation mechanism includes laser light, visible light, ultraviolet light, infrared light, neutron rays or electron rays.
  • the fibers include any one of carbon fibers, carbon nanotube fibers, glass fibers, and aramid fibers, or a mixed fiber of two or more.
  • the method for controlling the winding and curing of fibers provided in the embodiments of the present application is used to perform light curing on fibers that are wound on a component and pre-impregnated with resin.
  • the feedback value at the light position of the fiber is obtained by lighting, and according to the feedback value at the light position and the preset threshold value, it is determined whether the fiber at the light position is filament wound according to the preset program.
  • adjust the illumination parameters of the irradiation light required for light curing and/or adjust the winding parameters of the fibers in the preset program and continue to perform fiber winding on the component.
  • the fibers are photocured in real time during the winding process, that is, the fibers are photocured while being wound.
  • the winding position is offset
  • Winding parameters improve the overall strength of the cured fiber-wound component.
  • the winding mechanism winds the fiber pre-impregnated with resin on the component according to a preset procedure.
  • the light irradiation mechanism provides the irradiation required for light curing. light to cure the fiber wound on the component.
  • the light irradiation mechanism will also detect the feedback value at the lighting position, and feed the feedback value to the control mechanism, and the control mechanism can obtain the feedback value.
  • the feedback value is compared with the preset threshold value to determine whether the filament winding is performed according to the preset program at the illumination position.
  • the light The irradiation mechanism adjusts the illumination parameters of the irradiation light and/or controls the winding mechanism to adjust the winding parameters, and controls the winding mechanism to continue filament winding on the component, and photocures the fibers in real time during the winding process , that is, light curing while winding.
  • the lighting parameters are adjusted according to the winding situation of the fibers.
  • FIG. 1 is a process flow diagram of a control method for filament winding and curing provided by an embodiment of the application
  • FIG. 2 is a schematic diagram of the spacing distance between two adjacent sections of fibers wound on a component according to an embodiment of the present application
  • FIG. 3 is a schematic structural diagram of a light-curing fiber winding device provided in an embodiment of the present application.
  • FIG. 4 is a schematic structural diagram of a high-pressure container obtained by winding the light-curing fiber winding device provided in the embodiment of the present application;
  • FIG. 5 is a working flow chart of the light-curing fiber winding device provided by the embodiment of the present application.
  • first and second are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature defined as “first” or “second” may expressly or implicitly include one or more of that feature.
  • plurality means two or more, unless otherwise expressly and specifically defined.
  • the terms “installed”, “connected”, “connected”, “fixed” and other terms should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection , or integrated; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of the two elements or the interaction relationship between the two elements.
  • installed may be a fixed connection or a detachable connection , or integrated; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of the two elements or the interaction relationship between the two elements.
  • an embodiment of the present application provides a method for controlling the winding and curing of fibers, which is used to control the winding parameters of the fibers 40 wound on the component 50 and to control the optical fibers of the fibers 40 in real time during the winding process.
  • the fiber 40 is a fiber pre-impregnated with resin, which includes the following steps:
  • the control method for fiber winding and curing provided in the embodiment of the present application is used for light curing the fiber 40 wound on the component 50 and pre-impregnated with resin.
  • the feedback value at the illumination position of the fiber 40 is obtained through illumination, and according to the feedback value at the illumination position and a preset threshold value, it is determined whether the fiber at the illumination position is wound with the fiber 40 according to the preset procedure, and when the illumination position is not
  • adjust the illumination parameters of the irradiation light required for photocuring and/or adjust the winding parameters of the fibers 40 in the preset program and continue to wind the fibers 40 on the component 50 .
  • the fibers 40 are photocured in real time during the winding process, that is, the fibers 40 are photocured while being wound.
  • the illumination parameters of the irradiation light required for photocuring to strengthen the curing, so as to make up for the defect of incomplete curing caused by the position deviation.
  • the The position offset problem of 40 is corrected, so that the winding and curing of the fiber 40 are synchronized, which significantly shortens the curing time, simplifies the curing process, and improves the winding efficiency of the fiber 40.
  • the light parameters and/or the winding parameters can be adjusted in a timely manner according to the situation, which improves the overall strength of the fiber winding 40 wound component 50 after curing.
  • the component 50 may be an inner container made of materials such as steel or plastic, and its configuration may be cylindrical, conical, or elliptical cylindrical. Meanwhile, the component 50 may also be other objects that need to be wound.
  • the fibers 40 as the fibers 40 pre-impregnated with resin
  • the resin attached to the surface of the fibers 40 with pre-impregnated resin will be cured under the action of light, and then the fibers 40 will be firmly fixed on the surface of the fiber 40.
  • the surface of components 50 such as the liner.
  • the illumination intensity of the illumination light required for photocuring is increased.
  • the comparison between the feedback value at the illumination position and the preset threshold when it is judged that the fiber 40 has not been wound according to the preset procedure at the illumination position, it means that the winding position of the fiber on the component has occurred. Deviation, there may exist the phenomenon that the density of the fibers 40 wound on the component 50 is too thin, which will lead to the decrease of the connection strength between the fibers 40 and the component 50 at the illumination position.
  • the light intensity at this light position can be increased, so that the resin on the fiber 40 can be cured and adhered to the component 50 as much as possible, thereby enhancing the firmness of the fiber 40 wound on the component 50 .
  • the feedback value at the illumination position is obtained through illumination, and according to the feedback value at the illumination position and a preset threshold value, it is determined whether the fiber 40 is wound according to the preset program at the illumination position After the step, if it is determined that the fiber 40 is wound according to the preset program at the illumination position, the illumination intensity of the illumination light required for photocuring is reduced.
  • the fiber 40 when it is determined that the fiber 40 is wound according to the preset program at the illumination position, it can be determined that the fiber 40 is normally wound and solidified relative to the component 50, and at this time, only the illumination beam with necessary energy can be emitted to the illumination position. , so that the light intensity of the irradiated light required in the photocuring process of the fiber 40 can be reduced, so as to avoid excessive curing.
  • the curing temperature on the former fiber 40 will be transferred to the latter fiber 40.
  • the latter section of the fiber 40 already has a certain temperature, and when the latter section is cured, the light intensity of the irradiation light required for photocuring is reduced, so that the fiber 40 is prevented from being over-cured.
  • the feedback value at the illumination position is obtained through illumination, and according to the feedback value at the illumination position and a preset threshold value, it is determined whether the fiber 40 is wound according to the preset program at the illumination position After the step, if it is determined that the fiber 40 is wound according to the preset program at the illumination position, and the illumination intensity of the illumination light required for light curing is maintained, when the illumination intensity at the illumination position is not enough to make the fiber 40 over-cured, it can be maintained.
  • the light intensity of the illuminating light is obtained through illumination, and according to the feedback value at the illumination position and a preset threshold value, it is determined whether the fiber 40 is wound according to the preset program at the illumination position After the step, if it is determined that the fiber 40 is wound according to the preset program at the illumination position, and the illumination intensity of the illumination light required for light curing is maintained, when the illumination intensity at the illumination position is not enough to make the fiber 40 over-cured, it can be maintained.
  • the light intensity of the illuminating light is obtained through illumination,
  • the feedback value at the illumination position is obtained through illumination, and according to comparing the feedback value at the illumination position with a preset threshold, it is determined whether the fiber 40 is wound according to the preset program at the illumination position, include:
  • the feedback value of the light reflection is obtained through illumination, and according to the feedback value of the light reflection, it is determined whether the fiber 40 is wound according to the preset program at the illumination position.
  • Whether the fiber 40 is wound according to the preset program at the illumination position is determined by the feedback value of the light reflection, which specifically includes the following two methods:
  • the first implementation method is: the feedback value is the light intensity change value of the irradiated light and the reflected light when the irradiated light is irradiated to the component 50 and the reflected light is formed, the threshold value is the light intensity threshold value, and the light intensity change value and the light intensity threshold value are compared. . Specifically, the irradiation light is emitted to the component 50, the irradiation light is irradiated to the component 50, and reflected light is formed.
  • the light intensity change value is the difference between the light intensity of the illuminating light and the light intensity of the reflected light
  • the light intensity threshold is a standard light intensity change value in a preset program.
  • the irradiated light is irradiated on the component 50 and then reflected back.
  • the value is used as the basic data for determination.
  • the change value is equal to the preset light intensity threshold, it means that the fiber 40 at the position where the light on the component 50 is located is wound according to the preset program.
  • the value is not equal to the preset light intensity threshold, it means that the fiber 40 at the position where the light is located on the component 50 is not wound according to the preset program, and there may be no fiber 40 winding or fiber stacking at the position where the light is located.
  • Winding when no fiber 40 is wound, the light intensity of the irradiation light required for photocuring should be increased to make up for the defect that the curing strength cannot be achieved due to the lack of fibers.
  • the fibers 40 are wound in a stack, the light intensity of the irradiation light required for photocuring is reduced or maintained.
  • the light intensity change value at the illumination location can be compared with the light intensity threshold, and when the light intensity change value is less than the light intensity threshold , it means that the reflected light is at least partially reflected from the component 50 instead of the fiber 40 at the illumination position, so the illumination intensity of the reflected light does not decrease significantly, then the light intensity change value at the illumination position and the light intensity threshold For comparison, there will be a situation that is less than the light intensity threshold, so that it can be judged that the illumination position is a weak position where the fiber 40 is wound, and the illumination intensity of the illumination light at this position can be increased at this time to enhance the position at this position.
  • the firmness of the fibers 40 wrapped around the component 50 .
  • the light intensity change value is greater than or equal to the light intensity threshold, it means that at least most of the reflected light is reflected from the fiber 40 at the illumination location, so the illumination intensity of the reflected light is significantly weakened, then the illumination location is Compared with the light intensity threshold value, the light intensity change value of the light intensity is greater than or equal to the light intensity threshold value. In this way, it can be judged that the winding density of the fiber 40 at the light position meets the expectations, and the position can be reduced or maintained at this time.
  • the illumination intensity of the irradiated light at the location is to avoid excessive curing of the resin on the fiber 40 at this location, and to save the energy required for illumination.
  • the second implementation method is that the feedback value is the time interval value of the self-emitted irradiated light and the acquisition of the reflected light when the irradiated light is irradiated to the component 50 and the reflected light is formed, and the threshold value is the time threshold value, and the time interval value and the threshold value are compared. Yes, obtain the time interval value from the start of the emission of the illumination light to the end of the capture of the reflected light, and compare the time interval value with the threshold value.
  • the time threshold is the standard time interval value in the preset program.
  • the time interval value of the irradiated light from the exit to the reflected back that is, the irradiated light is irradiated on the component 50 and then reflected back
  • the time interval value ie the time difference
  • the fiber 40 at the position where the light on the component 50 is located is wound according to the preset program
  • the time difference is not equal to the preset threshold
  • the fiber 40 at the position where the light is located is not wound according to the preset program, and there may be no fiber 40 winding or fiber stack winding at the position where the light is located.
  • When there is no fiber 40 winding increase the light curing
  • the required light intensity of the irradiated light can make up for the defect that the curing strength cannot be achieved due to the lack of fibers.
  • the fiber stack is wound, the light intensity of the irradiation light required for photocuring is reduced or maintained.
  • the time interval value can be compared with the time threshold value, and when the time interval value is greater than the time threshold value, it is indicated that the lighting position is at the lighting position. , at least most of the reflected light is reflected from the component 50 rather than the fiber 40, so the optical path will be longer, then the time interval value at the illumination position is compared with the time threshold value, there will be a situation greater than the time threshold value, In this way, it can be determined that the lighted position is a weak position where the fibers 40 are wound. At this time, the light intensity of the irradiation light at the position can be increased to enhance the firmness of the fibers 40 wound around the component 50 at the position.
  • the time interval value is less than or equal to the time threshold value, it means that at least most of the reflected light is reflected from the fiber 40 at the illumination position, so the optical path is shortened, then the time interval value at the illumination position is compared with the threshold value , there will be a situation less than or equal to the threshold value, so it can be judged that the winding density of the fiber 40 at the illumination position meets the expectation, and at this time, the illumination intensity of the illumination light at this position can be reduced or maintained to avoid the position at this position.
  • the resin on the fibers 40 is over-cured and saves the energy required for lighting.
  • the feedback value at the illumination position is obtained through illumination, and whether the filament winding is performed at the illumination position according to a preset program is determined according to the comparison between the feedback value at the illumination position and a preset threshold, including: :
  • the feedback value of the light scattering is obtained through the illumination, and according to the feedback value of the light scattering, it is determined whether the fiber winding is performed according to the preset program at the illumination position.
  • the feedback value is the pixel change value of the scatter image when the irradiated light is irradiated on the component 50 and a scatter image is formed on the component 50
  • the threshold value is the pixel threshold value, and the pixel change value and the pixel threshold value are compared.
  • a feedback value of light scattering is obtained through illumination, and the feedback value includes a pixel variation value of a scattering image of the illumination light on the illuminated surface. That is, when the irradiated light irradiates the component 50, scattering occurs on the irradiated surface, and a scatter image is obtained. The pixel value of each pixel of the scatter image is compared with the corresponding pixel value of the preset scatter image. When the pixel change value is equal to the preset threshold value, it means that the fiber 40 at the position where the light on the component 50 is located is wound according to the preset program.
  • the fiber 40 at the position where the light is located is not wound according to the preset program. There may be no fiber 40 winding or stacking winding at the position where the light is located. When there is no fiber 40 winding, increase the light curing. The required illumination intensity of the irradiated light can make up for the defect that the curing strength cannot be achieved due to the lack of fibers. When the fibers 40 are wound in a stack, the light intensity of the irradiation light required for photocuring is reduced or maintained.
  • the pixel change value when the pixel change value is less than or equal to the threshold value, it means that at the illumination position, at least most of the front and back scattering images acquired within the preset time interval are formed by scattering from the component, and thus are generated back and forth. The scattered image does not change much, and the pixel change value is correspondingly small. In this way, it can be judged that the fiber winding density at the illumination position is insufficient. At this time, the illumination intensity of the illumination light at this position can be increased to strengthen the fiber at this position. winding firmness.
  • the pixel change value is greater than the threshold, it means that at the illumination position, the front and back scattered images obtained within the preset time interval are formed by scattering from the fiber 40 and the component 50, respectively, so the changes of the scattered images generated before and after are relatively small.
  • the pixel change value is correspondingly large, so it can be judged that the fiber winding density at the illumination position meets the requirements, and the illumination intensity of the illumination light at this position can be reduced or maintained to avoid the fiber at this position.
  • the resin over cures and saves the energy needed for light.
  • the winding parameters of the fibers 40 when adjusting the winding parameters of the fibers 40 in the preset program, include the position parameters of the fibers 40, the axial feed parameters of the fibers 40 relative to the component 50, and/or or the tension at which the fiber 40 is wound.
  • the position parameters of the fibers 40 may simply be adjusted, so that the fibers 40 are wound with the readjusted position parameters.
  • the position parameter of the fiber 40 can be adjusted, and the position parameter can be X relative to a certain origin (the starting point of fiber winding).
  • the coordinate values of the direction and the Y direction (the Y direction is perpendicular to the X direction) can also be the coordinate displacement of the X direction and the Y direction (the Y direction is perpendicular to the X direction) relative to a certain origin (the starting point of filament winding). value.
  • the axial feed parameter of the fiber 40 relative to the component 50 can be simply adjusted, and the feed parameter can be the feed amount of the fiber 40 in each step, or the fiber 40 The feed rate or movement rate in the axial direction.
  • the tension of the fibers 40 can be simply adjusted.
  • the fibers 40 can be increased. The winding tension makes the winding of the fiber 40 tighter.
  • the three winding parameters of the position parameter of the fiber 40, the axial feed parameter of the fiber 40 relative to the component 50, and the winding tension of the fiber 40 can be used in combination, for example, when it is determined by the feedback value of the illumination that there is no fiber 40 entangled at the location where the illumination is located, the location parameter of the fiber 40 and the axial feed parameter of the fiber 40 relative to the component 50 can be adjusted at the same time, or the location of the fiber 40 can be adjusted at the same time.
  • the position parameter and the winding tension of the fiber 40 can also be adjusted at the same time as the axial feed parameter of the fiber 40 relative to the component 50 and the winding tension of the fiber 40, and the position parameter of the fiber 40 and the axis of the fiber 40 relative to the component 50 can also be adjusted simultaneously. To the feed parameters and the tension of the fiber 40 winding.
  • the distance between two adjacent sections of the fiber 40 wound on the component 50 (shown as D1 in FIG. 2 ) is greater than At a predetermined standard separation distance (as shown in D in Figure 2), the axial feed speed of the fiber 40 relative to the component 50 is reduced and/or the tension of the fiber 40 winding is increased.
  • the spacing distance is greater than the standard spacing distance, it means that the fibers 40 wound on the component 50 are too loosely arranged.
  • the axial feed speed of the fibers 40 relative to the component 50 is reduced and/or the winding tension of the fibers 40 is increased, The fibers 40 can be wound on the component 50 more finely, thereby improving the firmness of the fibers 40 wound on the component 50 .
  • the spacing distance when adjusting the winding parameters of the fibers 40 in the preset program, when the spacing distance is smaller than the standard spacing distance, the axial feed speed of the fibers 40 relative to the component 50 is increased and the fibers 40 are decreased Winding tension; when the spacing distance is less than the standard spacing distance, it means that the fibers 40 wound on the component 50 are too densely arranged, and the axial feed speed of the fibers 40 relative to the component 50 is increased at this time, so that the fibers 40 can be relatively The winding density of the component 50 returns to the normal level.
  • the axial feed speed of the fibers 40 relative to the component 50 is increased or maintained, and The tension in the wrapping of the fibers 40 is maintained. In this way, while increasing the axial feed speed of the fibers 40 relative to the part 50, the tension of the fibers 40 winding is maintained, which can make the process of returning the winding density of the fibers 40 relative to the part 50 to a normal level more stable.
  • the embodiment of the present application also provides a light-curing fiber winding device for winding the fiber 40 on the outer surface of the component 50 and photo-curing the fiber 40 in real time during the winding process.
  • is pre-impregnated resin fiber 40 comprising:
  • the winding mechanism 10 winds the fiber 40 on the component 50 according to a preset program
  • the light irradiation mechanism 30 provides the irradiation light required for photocuring, detects the feedback value at the lighting position, and feeds back the feedback value to the control mechanism 20;
  • the control mechanism 20 sets a preset program in which the fibers 40 are wound on the component 50, obtains the feedback value of the light irradiation mechanism 30, and compares the feedback value at the lighting position with a preset threshold to determine whether the lighting position is in accordance with the preset
  • the program performs fiber 40 winding
  • control the light irradiation mechanism 30 to adjust the lighting parameters of the irradiation light and/or control the winding mechanism 10 to adjust the winding parameters, and control the winding mechanism 10 to perform fiber winding on the component 50 .
  • the light-curing fiber 40 winding mechanism provided by the embodiment of the present application
  • the winding mechanism 10 when working, the winding mechanism 10 will pre-impregnated the resin fiber 40 according to the preset
  • the program is wound on the component 50.
  • the light irradiation mechanism 30 provides the irradiation light required for light curing to perform light curing treatment on the fiber 40 wound on the component 50.
  • the light irradiation mechanism 30 also The feedback value at the lighting position will be detected, and the feedback value will be fed back to the control mechanism 20, and the control mechanism 20 can obtain the feedback value, and according to the preset program, compare the feedback value with the preset threshold value to determine the lighting position.
  • the light irradiation mechanism 30 can be controlled to adjust the lighting parameters of the irradiation light and/or control the winding mechanism 10 Adjust the winding parameters, and control the winding mechanism 10 to continue winding the fiber 40 on the component 50, and light-curing the fiber 40 in real time during the winding process, that is, light-curing while winding, and during the curing process, according to The lighting parameters are adjusted for the winding condition of the fibers 40.
  • the lighting parameters of the irradiation light required for photocuring are adjusted to strengthen the curing to compensate for the incomplete curing caused by the position shift.
  • correct the positional deviation problem of the fiber 40 that is, adjust the winding parameters of the fiber 40 in the preset program, and make the fiber 40 continue to be wound according to the adjusted program, or, after adjusting the irradiation light required for light curing
  • the positional deviation of the fibers 40 is corrected, so that the winding and curing of the fibers 40 are synchronized, which significantly shortens the curing time, simplifies the curing process, and improves the fiber 40.
  • Winding efficiency at the same time, by monitoring the situation during the winding process to adjust the lighting parameters and/or winding parameters in time, the overall strength of the fiber 40 winding component 50 after curing is improved.
  • the control mechanism 30 when the control mechanism 20 determines that the fiber winding is not performed according to the preset program at the illumination position, the control mechanism 30 is controlled to increase the illumination intensity of the illumination light. Specifically, when it is judged that the fibers 40 are not wound according to the preset program at the light position, it means that the winding position of the fibers 40 on the component 50 is deviated, and there may be a density of the fibers 40 wound on the component 50. The phenomenon of too thinning, which will lead to a decrease in the strength of the connection between the fiber 40 and the component 50 at the location of the light.
  • the light intensity at this light position can be increased, so that the resin on the fiber 40 can be cured and adhered to the component 50 as much as possible, thereby enhancing the firmness of the fiber 40 wound on the component 50 .
  • control mechanism 20 determines that the fiber 40 is wound according to a preset program at the illumination position, the control mechanism 20 controls the light illumination mechanism 30 to reduce or maintain the required amount of light curing. The light intensity of the illuminating light.
  • the control mechanism 20 can control the light irradiation mechanism 30 to reduce or maintain the amount of light irradiated to the fiber 40 at this time. Therefore, while ensuring that the fibers 40 are irradiated with sufficient light, the energy consumption of the light irradiating mechanism 30 can also be effectively saved, thereby saving energy and reducing consumption.
  • the light irradiation mechanism 30 controls the light irradiation mechanism 30 to reduce the light intensity of the irradiation light required during the light curing process of the fiber 40.
  • the curing temperature on the previous fiber 40 It will be transmitted to the latter section of fiber 40, so that the latter section of fiber 40 already has a certain temperature.
  • the illumination intensity of the irradiation light required for photocuring is reduced, so that the fiber 40 can avoid excessive curing.
  • the light irradiation mechanism 30 can realize the simultaneous curing of the fiber 40 and the position detection, and can adjust the light intensity irradiated to the fiber 40 according to the winding condition of the fiber 40, on the one hand, to prevent the fiber 40 from wrapping the component due to insufficient light irradiation intensity.
  • the overall strength of the high-pressure container formed by 50 is insufficient, and on the other hand, it can prevent the resin on the surface of the fiber 40 from thermally deteriorating during curing due to excessive light irradiation intensity.
  • the light irradiation mechanism 30 further includes a detection unit (not shown), the detection unit detects the feedback value at the lighting position, and feeds back the feedback value to the control mechanism 20 .
  • the detection unit detects the feedback value at the lighting position, and feeds back the feedback value to the control mechanism 20 .
  • the detection unit provided therein can simultaneously detect the light irradiation position of the fiber 40 , and feedback the feedback value to the control mechanism 20 .
  • the feedback value at the illumination position detected by the detection unit includes the time interval value of the illumination light provided by the light illumination mechanism 30 from exiting to the reflection, or the illumination light provided by the light illumination mechanism 30 from The change value of light intensity from exit to reflection, the change value of brightness of the illumination light provided by the light irradiation mechanism from exit to reflection, or the change value of pixels of the scattered image of the illumination light provided by the light illumination mechanism 30 on the illuminated surface.
  • the detection unit can be integrated at the beam emitting end of the light irradiation mechanism 30, and the detection unit can capture the pulse beam signal that returns to the beam reflection end after the beam is reflected or diffusely reflected on the surface of the fiber 40.
  • the control mechanism 20 compares these feedback values with the corresponding preset thresholds to determine whether the fibers 40 are wound according to the preset procedure.
  • the detection unit can be integrated at the beam emitting end of the light irradiation mechanism 30, and by capturing the scattering image of the light beam diffusely reflected on the surface of the fiber 40, the control mechanism 20 can control the mechanism 20 according to each of the scattering images.
  • the pixel value is compared with the corresponding pixel values of the preset scattering image, and whether the fiber 40 is wound according to the preset procedure is determined by comparing the pixel change value with the corresponding preset threshold.
  • the control mechanism 20 compares the time difference with a preset threshold. When the time difference is equal to the preset threshold, it represents the location of the illumination on the component 50. The fiber at the position is wound according to the preset program.
  • the time difference is not equal to the preset threshold, it means that the fiber at the position where the light is located on the component 50 is not wound according to the preset program, and there may be a position where the light is located. There is no fiber entanglement or fiber stack entanglement. When there is no fiber 40 entanglement, the illumination intensity of the irradiation light required for photocuring should be increased to compensate for the defect that the curing strength cannot be achieved due to the lack of fibers. When the fiber stack is wound, the light intensity of the irradiation light required for photocuring is reduced or maintained.
  • the control mechanism 20 compares the change value with the preset threshold. When the change value is not equal to the preset threshold When the threshold value is used, it means that the fiber at the position where the illumination on the component 50 is located is wound according to the preset program. When the change value is not equal to the preset threshold value, it means that the fiber at the location where the illumination is located on the component 50 is not according to the preset procedure.
  • Winding by the preset program there may be no fiber winding or fiber stack winding at the position where the light is located.
  • the light intensity of the irradiation light required for light curing should be increased to compensate for the lack of fibers. The defect that the curing strength cannot be achieved.
  • the fiber stack is wound, the light intensity of the irradiation light required for photocuring is reduced or maintained.
  • the feedback value detected by the detection unit is the pixel change value of the scattered image of the illuminating light on the illuminating surface. That is, when the irradiated light irradiates the component 50, it will scatter on the irradiated surface, and a scatter image is obtained. After the control mechanism 20 receives the scatter image, the pixel value of each pixel of the scatter image corresponds to the preset scatter image.
  • Each pixel value is compared, if the pixel change value after the comparison is equal to the preset threshold, it means that the fiber at the position where the illumination on the component 50 is located is wound according to the preset program, when the pixel change value after the comparison is not equal to Within the preset threshold value, it means that the fiber at the position where the light is located on the component 50 is not wound according to the preset program, and there may be no fiber winding or fiber stack winding at the position where the light is located.
  • the light intensity of the irradiation light required for photocuring should be increased to make up for the defect that the curing strength cannot be achieved due to the lack of fibers.
  • the fiber stack is wound, the light intensity of the irradiation light required for photocuring is reduced or maintained.
  • the winding parameters of the fibers 40 include the location parameters of the fibers 40 , the axial feed parameters of the fibers 40 relative to the component 50 , and/or the tension of the fibers 40 winding.
  • the position parameter of the fiber can be simply adjusted, so that the fiber is wound with the readjusted position parameter.
  • the position parameter of the fiber can be adjusted, and the position parameter can be the X direction and the The coordinate value of the Y direction (the Y direction is perpendicular to the X direction) can also be the coordinate displacement value of the X direction and the Y direction (the Y direction is perpendicular to the X direction) relative to a certain origin (the starting point of filament winding).
  • the axial feed parameter of the fiber 40 relative to the component 50 can simply be adjusted.
  • the tension of the fibers 40 can be simply adjusted.
  • the tension of the fibers 40 can be increased. , so that the winding of the fiber 40 is tighter.
  • the three winding parameters of the position parameter of the fiber 40, the axial feed parameter of the fiber 40 relative to the component 50, and the winding tension of the fiber 40 can be used in combination, for example, when the aforementioned
  • the position parameter of the fiber 40 and the axial feed parameter of the fiber 40 relative to the component 50 can be adjusted at the same time, and the position parameter of the fiber 40 can be adjusted simultaneously.
  • the tension of the fiber 40 winding can also adjust the axial feed parameters of the fiber 40 relative to the component 50 and the winding tension of the fiber 40 at the same time. You can also adjust the position parameters of the fiber 40 and the axial feed of the fiber 40 relative to the component 50 at the same time. Parameters and tension of the fiber 40 winding.
  • the winding mechanism 10 includes a base 11 , a rotating unit 12 and a fiber supply unit 13 disposed on the base 11 ;
  • the component 50 placed on the rotating unit 12 is driven by the rotating unit 12 to rotate to complete the subsequent winding action of the fibers 40 .
  • the fibers 40 are fed to the component 50 .
  • the rotating unit 12 disposed on the base 11 drives the component 50 to rotate, and the fiber supply unit 13 moves along the predetermined winding and feeding direction of the component 50 during the rotation of the component 50.
  • the fibers 40 are fed to the component 50, and then the fibers 40 are wound around the outer circumference of the component 50 along the predetermined winding feeding direction of the component 50 (eg, the length direction or the axial direction of the component 50) as the component 50 rotates.
  • the wall surface of the carbon fiber 40 and the component 50 can be wound and combined, and then the preparation of the carbon fiber 40 wound component 50 such as the high-pressure container 60 can be simply and efficiently achieved by the simultaneous curing process.
  • the rotating unit 12 includes a rotating shaft 14 and a driving motor; the rotating shaft 14 is rotatably mounted on the base 11 ; the component 50 is disposed on the rotating shaft 14 ; the driving motor is disposed on the base 11 and rotates with the rotating shaft 14 connect.
  • the driving motor can drive the rotating shaft 14 mounted on the base 11 to rotate, and the rotating shaft 14 can drive the component 50 sleeved thereon to rotate during the rotating process.
  • control mechanism 20 includes a comparison unit, a fiber regulation unit and an energy regulation unit that are connected to each other;
  • the comparison unit acquires the feedback value at the illumination position, and compares it with a preset threshold value, and when the feedback value is not equal to the threshold value, feeds back a corresponding adjustment signal to the fiber regulation unit and the energy regulation unit;
  • the fiber regulating unit is connected with the fiber supplying unit 13, and when receiving the adjustment signal from the comparing unit, it adjusts the winding parameters of the fibers 40 in the preset program, and the fiber supplying unit 13 carries out the fiber 40 delivery according to the program after adjusting the winding parameters of the fibers 40. ;
  • the energy regulation unit is connected to the light irradiation mechanism 30 , and when receiving the adjustment signal from the comparison unit, the light irradiation mechanism 30 is controlled to increase or decrease the illumination intensity of the irradiation light provided by the light irradiation mechanism 30 .
  • the comparison unit of the control mechanism 20 can first obtain the feedback value at the light position, and compare it with the preset threshold value. The adjustment signal is fed back, and then the fiber 40 control unit adjusts the winding parameters of the fiber 40 according to the received adjustment signal to transport the fiber 40.
  • the energy control unit receives the adjustment signal, it can control the light irradiation mechanism 30 to increase. Increase or decrease the illumination intensity of the illumination light it provides. In this way, the light intensity irradiated on the fiber 40 can be adjusted simply and efficiently according to the real-time winding condition of the fiber 40 .
  • the irradiation light provided by the light irradiation mechanism 30 includes laser light, visible light, ultraviolet light, infrared light, neutron rays or electron rays.
  • the energy of the light source of the laser line is high and concentrated, various complex and deep surfaces can be cured instantaneously, so the energy beam emitted by the light irradiation mechanism 30 is preferably a laser line.
  • the fibers 40 include any one or a mixture of two or more of carbon fibers, carbon nanotube fibers, glass fibers, and aramid fibers. Specifically, since carbon nanotube fibers have better strength and better lightweight performance compared to other fiber materials, the fibers 40 are preferably carbon nanotube fibers, or carbon nanotube fibers and carbon fibers, glass fibers, A composite fiber of any one of the three aramid fibers.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Moulding By Coating Moulds (AREA)

Abstract

Procédé de commande pour l'enroulement et le durcissement de fibres, et dispositif d'enroulement de fibres durcissant à la lumière. Le procédé de commande pour l'enroulement et le durcissement de fibres comprend les étapes suivantes : l'obtention d'une valeur de rétroaction au niveau d'une position d'éclairage au moyen d'un éclairage, et la comparaison de la valeur de rétroaction au niveau de la position d'éclairage et d'un seuil prédéfini pour déterminer si un composant est enroulé par une fibre (40) au niveau de la position d'éclairage selon un programme prédéfini ; si ce n'est pas le cas, l'ajustement d'un paramètre d'éclairage de la lumière d'éclairage requise pour le durcissement par la lumière et/ou l'ajustement d'un paramètre d'enroulement de la fibre (40) dans le programme prédéfini, et la poursuite de l'enroulement du composant (50) avec la fibre (40). L'enroulement et le durcissement de la fibre (40) sont réalisés de manière synchrone, raccourcissant ainsi significativement le temps de durcissement, simplifiant le processus de durcissement, et améliorant l'efficacité d'enroulement de la fibre (40). De plus, un procédé d'éclairage est utilisé pour surveiller l'état dans le processus d'enroulement de la fibre (40) pour ajuster le paramètre d'intensité d'éclairage et/ou le paramètre d'enroulement d'une manière opportune, améliorant ainsi la résistance globale du composant (50) enroulé par la fibre durcie (40).
PCT/CN2020/119645 2020-09-30 2020-09-30 Procédé de commande pour l'enroulement et le durcissement de fibres, et dispositif d'enroulement de fibres durcissant à la lumière Ceased WO2022067756A1 (fr)

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CN120121705A (zh) * 2025-05-09 2025-06-10 沈阳汇力智能科技有限公司 一种基于碳纤维缠绕的实时缺陷检测方法、设备及介质

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