A rotor carbon fiber winding device and a winding method

Abstract

The present invention discloses a rotor carbon fiber winding device and a winding method. The winding device includes a feeding roller, a heating component, a clamping component, a first rotating roller, and a cutting component. The feeding roller is used for storing a carbon fiber film, and the carbon fiber film can be wound onto the surface of the rotor. The heating component is used for heating the carbon fiber film that moves from the feeding roller to the rotor. The clamping component has a clamping position for clamping the carbon fiber film and a winding position on the side of the heating component away from the feeding roller. The clamping component in the winding position can rotate circumferentially around the rotor to wind the carbon fiber film clamped by the clamping component onto the rotor. The first rotating roller is located at the side of the rotor. When the end of the carbon fiber film is wound onto the rotor, the first rotating roller can be abutted against the rotor by the carbon fiber film, and the first rotating roller can rotate circumferentially around the rotor to press the end of the carbon fiber film onto the rotor. The cutting component is arranged between the feeding roller and the clamping component, and the cutting component is used for cutting the carbon fiber film.

Description

Technical Field

[0001] The present invention belongs to the field of motors, and particularly relates to a rotor carbon fiber winding device and a winding method. Background Art

[0002] With the rapid development of automobiles, automotive motors are gradually developing towards high efficiency, high power, and high speed. In new energy vehicles, due to the increasing requirement for motor power density, the mass of the motor becomes smaller and smaller. Among them, when the output power of the motor remains unchanged, by increasing the rotational speed of the motor, the volume and weight of the motor can be reduced, thereby increasing the power density of the motor; in order to prevent the rotor in the motor from being damaged due to centrifugal force during high-speed rotation, a layer of carbon fiber rotor sheath can be added outside the rotor to protect the rotor.

[0003] In the prior art, wet winding and dry cross winding are usually adopted. Wet winding uses a liquid resin system. After the continuous fiber bundle roving or fiberglass cloth tape is impregnated with glue, it is directly wound onto the surface of the mandrel or lining under the control of the fiber tension by the tension controller, and finally cured by a forming method. However, in the winding process, the resin glue is wasted greatly, the production environment is poor, the resin content and fiber tension are not easy to control, there are few varieties of resin glue available for wet winding, and the fiber distribution uniformity is poor; while in dry cross winding, each winding will press on the previous winding during the winding process. After completing one layer of winding, the surface is uneven, and air will be wrapped in when winding the next layer to form bubbles. During the winding process, the prepreg needs to be heated, and the distance between the heating device and the rotor and the environmental temperature requirements are relatively high. Similarly, the fiber distribution uniformity is poor. Summary of the Invention

[0004] Aiming at the above deficiencies, the present invention provides a rotor carbon fiber winding device and a winding method to achieve better winding of the carbon fiber film to the rotor of the motor.

[0005] The present invention is realized through the following technical solutions:

[0006] A rotor carbon fiber winding device includes a feeding roller, a heating component, a clamping component, a first rotating roller and a cutting component. The feeding roller is used for storing a carbon fiber film, and the carbon fiber film can be wound onto the surface of the rotor. The heating component is used for heating the carbon fiber film that moves from the feeding roller to the rotor. The clamping component has a clamping position for clamping the carbon fiber film and a winding position on the side of the heating component away from the feeding roller. The clamping component in the winding position can rotate circumferentially around the rotor to wind the carbon fiber film clamped by the clamping component onto the rotor. The first rotating roller is located on the side of the rotor. When the end of the carbon fiber film is wound onto the rotor, the first rotating roller can be abutted against the rotor by the carbon fiber film, and the first rotating roller can rotate circumferentially around the rotor to press the end of the carbon fiber film against the rotor. The cutting component is arranged between the feeding roller and the clamping component, and the cutting component is used for cutting the carbon fiber film. The winding device can wind the carbon fiber film onto the rotor so that the surface of the rotor can be protected by the carbon fiber film, protecting the rotor from damage when the rotor rotates. When the end of the carbon fiber film is first wound onto the rotor, the first rotating roller can be abutted against the area of the rotor wound with the carbon fiber film, thereby pressing the carbon fiber film wound onto the rotor against the rotor, that is, pressing the end of the carbon fiber film against the rotor, so that when the rotor moves, the carbon fiber film will not fall off from the rotor, improving the effect of winding multiple layers of carbon fiber layers. At the same time, when winding multiple layers of carbon fiber layers, since one turn of the carbon fiber film will form one layer, the winding efficiency is improved. At the same time, when the carbon fiber films of adjacent layers come into contact, they will be stacked in sequence along the rotation direction of the carbon fiber film. Therefore, when winding, the gas between adjacent carbon fiber films can be squeezed to the outside along the opening between adjacent carbon fiber films, so that no bubbles will be generated between the formed carbon fiber layers, thereby improving the winding effect of the carbon fiber film and better protecting the rotor.

[0007] Further, an anti-sticking coating is provided on the surface of the heating component. Since the carbon fiber film needs to be heated at the heating component, by providing an anti-sticking coating on the surface of the heating component, the carbon fiber film will not adhere to the heating component during movement, making the movement of the carbon fiber film smoother.

[0008] Further, the feeding roller is connected with a braking device, and the braking device can adjust the tension when the carbon fiber film is drawn out from the feeding roller. By controlling the tension, it can be ensured that the carbon fiber film will not wrinkle during movement, avoiding the generation of bubbles between the formed carbon fiber layers.

[0009] Further, the winding device further includes a pressure component located between the feeding roller and the cutting component. The pressure component has a feeding state in which the carbon fiber film can pass through and a pressing state in which the carbon fiber film is pressed. When the pressure component is in the pressing state, the cutting component cuts the carbon fiber film. When the carbon fiber film is wound from the feeding roller to the rotor, the pressure component is in the feeding state at this time to enable the carbon fiber film to pass through smoothly. When it is necessary to cut the carbon fiber film, the pressure component switches from the feeding state to the pressing state to press the carbon fiber film. When the cutting component cuts the carbon fiber film, due to the pressing of the pressure component, it will not affect the carbon fiber film at the feeding roller, thus facilitating the control of the length of the exposed carbon fiber film after cutting.

[0010] Further, the carbon fiber film has opposite first and second surfaces. Optionally, a first surface film is provided on the first surface, and a second surface film is optionally provided on the second surface; the winding device further includes a first winding roller that can wind the first surface film located on the first surface; and / or a second winding roller that can wind the second surface film located on the second surface. When it is necessary to provide the first surface film and the second surface film, the first surface film and the second surface film can protect the carbon fiber film. At the same time, the first surface film can be wound by the first winding roller, and the second surface film can be wound by the second winding roller. After the carbon fiber film is removed from the feeding roller, the provided first surface film and the second surface film can be separated simultaneously, thus facilitating the contact between the carbon fiber film and the heating component for heat treatment.

[0011] Further, the heating component is in a plate-like structure. The heating component has a feeding end close to the feeding roller and a winding end far from the feeding roller. The cutting component is located between the feeding end and the feeding roller. The initial position of the rotor is at the winding end, and the rotor can rotate from the winding end to the feeding end. Since the heating component is in a plate-like structure, when the carbon fiber film moves on the surface of the heating component, heating can be achieved. Moreover, the heating component has a certain length, making the heating of the carbon fiber film more thorough and enabling the carbon fiber film to better adhere to the rotor. Since one rotation of the rotor is one circle of the carbon fiber film wound around the rotor, and usually the number of turns of the carbon fiber film to be wound is 5 - 8 turns, if the length of the heating component is too short, it will result in insufficient winding turns of the carbon fiber film around the rotor after the rotor rotates from the winding end to the feeding end, affecting the protection of the rotor by the carbon fiber film.

[0012] Further, the distance along the length direction of the heating component is H, and the outer circumference of the rotor is h, where H > 5h. Since one rotation of the rotor is one circle of the carbon fiber film wound around the rotor, and usually the number of turns of the carbon fiber film to be wound is 5 - 8 turns, if the length of the heating component is too short, it will result in insufficient winding turns of the carbon fiber film around the rotor after the rotor rotates from the winding end to the feeding end, affecting the protection of the rotor by the carbon fiber film.

[0013] Further, the winding device further includes a second roller located between the feeding end and the cutting assembly. The second roller can wind the end of the carbon fiber film cut by the cutting assembly around the rotor. Through the second roller, the remaining carbon fiber film after cutting can be pressed against the rotor, thereby completing the winding of the carbon fiber film at the rotor.

[0014] The present invention provides a rotor carbon fiber winding method, which is applied to the above-mentioned winding device. The winding method includes:

[0015] Starting winding stage: The clamping assembly moves to the clamping position, clamps the carbon fiber film located at the feeding roller, and moves from the clamping position to the winding position. At this time, the carbon fiber film is heated via the heating assembly. The clamping assembly at the winding position winds the carbon fiber film that extends beyond the heating assembly and is heated around the outer periphery of the rotor, and the first roller abuts against the carbon fiber film wound around the rotor to press the end of the carbon fiber film against the surface of the rotor;

[0016] Winding stage: The rotor rolls forward closely against the surface of the heating assembly to roll up the carbon fiber film for multi-layer winding around the outer periphery of the rotor;

[0017] End winding stage: The rotor and the heating assembly clamp the carbon fiber film. After the cutting assembly cuts the carbon fiber film, a tail of the carbon fiber film remaining outside the rotor is formed, and the tail of the carbon fiber film remaining outside the rotor is wound around the surface of the rotor.

[0018] Further, in the starting winding stage, before the clamping assembly clamps the carbon fiber film located at the feeding roller and moves from the clamping position to the winding position, resin is coated on the surface of the rotor.

[0019] Further, the tension applied to the carbon fiber film in the starting winding stage is less than the tension applied in the winding stage.

[0020] Further, in the winding stage, no sliding occurs between the carbon fiber film and the heating assembly.

[0021] As another embodiment of the present application, the heating assembly is in a roller structure. The rotor wound with the carbon fiber film can move above the heating assembly, and the rotor can rotate circumferentially relative to the heating assembly. This can save the overall occupied space of the winding device. At the same time, the instantaneous contact area between the heating assembly and the carbon fiber film is relatively small. Therefore, during the winding process, the rotation speed of the rotor is also relatively slow, so that the carbon fiber film can be fully heated via the heating assembly.

[0022] The present invention provides a rotor carbon fiber winding method, which is applied to the above-mentioned winding device. The winding method includes:

[0023] Starting winding stage: The clamping assembly moves to the clamping position, clamps the carbon fiber film at the feeding roller, and moves from the clamping position to the winding position. At this time, the carbon fiber film is heated by the heating assembly. The clamping assembly at the winding position winds the carbon fiber film that extends beyond the heating assembly and is heated around the outer periphery of the rotor. The first roller abuts against the carbon fiber film wound around the rotor, so that the end of the carbon fiber film is pressed against the surface of the rotor;

[0024] Winding stage: The rotor rotates in place close to the surface of the heating assembly, rolls up the carbon fiber film to wind it in multiple layers around the outer periphery of the rotor;

[0025] End winding stage: The rotor and the heating assembly clamp the carbon fiber film. After the cutting assembly cuts the carbon fiber film, a tail of the carbon fiber film remaining outside the rotor is formed. The rotor continues to rotate close to the surface of the heating assembly, and winds the tail of the carbon fiber film remaining outside the rotor onto the surface of the rotor.

[0026] Furthermore, in the starting winding stage, before the clamping assembly clamps the carbon fiber film at the feeding roller and moves from the clamping position to the winding position, resin is coated on the surface of the rotor.

[0027] Furthermore, the tension applied to the carbon fiber film in the starting winding stage is less than the tension applied to the carbon fiber film in the winding stage.

[0028] Furthermore, in the winding stage, no slippage occurs between the carbon fiber film and the heating assembly. Description of the drawings

[0029] Figure 1 A moving schematic diagram for illustrating a schematic implementation manner of the clamping assembly in Embodiment 1 of the present invention;

[0030] Figure 2 A matching schematic diagram for illustrating a schematic implementation manner of the clamping assembly and the carbon fiber film in Embodiment 1 of the present invention;

[0031] Figure 3 A matching schematic diagram for illustrating a schematic implementation manner of the clamping assembly and the rotor in Embodiment 1 of the present invention;

[0032] Figure 4 A matching schematic diagram for illustrating a schematic implementation manner of the first roller and the rotor in Embodiment 1 of the present invention;

[0033] Figure 5 A moving schematic diagram for illustrating a schematic implementation manner of the cutting assembly in Embodiment 1 of the present invention;

[0034] Figure 6 A matching schematic diagram for illustrating a schematic implementation manner of the second roller and the rotor in Embodiment 1 of the present invention;

[0035] Figure 7 Schematic diagram showing the cooperation of the clamping assembly and the carbon fiber film in the second embodiment of the present invention;

[0036] Figure 8 Schematic diagram showing the cooperation of the clamping assembly and the rotor in the second embodiment of the present invention;

[0037] Figure 9 Schematic diagram showing the movement of the rotor in the second embodiment of the present invention;

[0038] Figure 10 Schematic diagram showing the movement of the cutting assembly in the second embodiment of the present invention.

[0039] Reference numerals:

[0040] 1. Feeding roller, 2. Carbon fiber film, 21. First surface film, 22. Second surface film, 3. Heating assembly, 4. Clamping assembly, 5. Rotor, 6. First roller, 7. Cutting assembly, 8. Pressing assembly, 9. First winding roller, 10. Second winding roller, 11. Second roller. Detailed implementation manners

[0041] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0042] It should be noted that the orientation terms such as left, right, up, down, front, and back in the embodiments of the present invention are only relative concepts to each other or are referenced based on the normal use state of the product, that is, the traveling direction of the product, and should not be considered as restrictive.

[0043] In addition, it should also be noted that the dynamic terms such as "relative movement" mentioned in the embodiments of the present invention not only refer to the change in position, but also include movements such as rotation and rolling where the position does not change relatively, but the state changes.

[0044] Finally, it should be noted that when a component is referred to as being "located" or "disposed on" another component, it can be on the other component or there may be an intermediate component at the same time. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or there may be an intermediate component at the same time.

[0045] A rotor carbon fiber winding device includes a feeding roller, a heating component, a clamping component, a first rotating roller, and a cutting component. The feeding roller is used to store the carbon fiber film, and the carbon fiber film can be wound onto the surface of the rotor. The heating component is used to heat the carbon fiber film that moves from the feeding roller to the rotor. The clamping component has a clamping position for clamping the carbon fiber film and a winding position on the side of the heating component away from the feeding roller. The clamping component in the winding position can rotate circumferentially around the rotor to wind the carbon fiber film clamped by the clamping component onto the rotor. The first rotating roller is located on the side of the rotor. When the end of the carbon fiber film is wound onto the rotor, the first rotating roller can be abutted against the rotor by the carbon fiber film, and the first rotating roller can rotate circumferentially around the rotor to press the end of the carbon fiber film onto the rotor. The cutting component is arranged between the feeding roller and the clamping component, and the cutting component is used to cut the carbon fiber film.

[0046] Among them, the carbon fiber film in this application includes carbon fibers and a resin compounded on the carbon fibers. The resin is, for example, epoxy resin.

[0047] Embodiment 1

[0048] As Figures 1 to 6 shown, in this embodiment, when winding the carbon fiber film on the surface of the rotor, the carbon fiber film as the raw material is stored at the feeding roller 1. After being heated by the heating component 3, the carbon fiber film is wound onto the rotor 5 so that multiple layers of carbon fiber film are wound on the rotor 5. Among them, the carbon fiber film at the feeding roller 1 in this application is set in a roll, so the carbon fiber film at the feeding roller 1 is also in a planar structure after being taken out. At the same time, the width of the carbon fiber film is approximately equal to the axial length of the rotor to be wound. Therefore, after the carbon fiber film winds around the rotor for one week, a complete carbon fiber layer can be formed on the surface of the rotor, making the winding of the carbon fiber film more uniform. When the end of the carbon fiber film is first wound onto the rotor 5, the first rotating roller 6 can be abutted against the area of the rotor 5 wound with the carbon fiber film, thereby pressing the carbon fiber film wound onto the rotor 5 against the rotor, that is, pressing the end of the carbon fiber film against the rotor 5, so that when the rotor 5 moves, the carbon fiber film will not fall off from the rotor 5, improving the effect of winding multiple layers of carbon fiber layers. At the same time, when winding multiple layers of carbon fiber layers, since the carbon fiber film forms a layer after winding one circle, the winding efficiency is improved; at the same time, when the carbon fiber films between adjacent layers come into contact, they will be stacked in sequence along the rotation direction of the carbon fiber film. Therefore, when winding, the gas between adjacent carbon fiber films can be squeezed to the outside along the opening between adjacent carbon fiber films, so that no bubbles will be generated between the formed carbon fiber layers, thereby improving the winding effect of the carbon fiber film and better protecting the rotor.

[0049] Preferably, the feeding roller is connected with a braking device which can adjust the tension when the carbon fiber film is drawn out from the feeding roller. By controlling the tension, it can be ensured that the carbon fiber film will not wrinkle during movement, avoiding the generation of bubbles between the formed carbon fiber layers.

[0050] In this embodiment, when the clamping assembly 4 clamps the carbon fiber film to the rotor, the clamping assembly 4 can fix the carbon fiber film to the rotor. When the clamping assembly 4 drives the carbon fiber film to wrap around the rotor, the first roller 6 can be started synchronously with the clamping assembly 4 to press the carbon fiber film attached to the rotor. Among them, when pressing, due to the static friction force during the contact between the first roller 6 and the carbon fiber film, the first roller 6 will also rotate self - sufficiently, that is, while rotating self - sufficiently, the first roller 6 will also rotate around the rotor, so as to press the carbon fiber film at the rotor.

[0051] Preferably, the first roller 6 can be heated, and the heating temperature is 80 - 120 °C. Thus, when pressing the carbon fiber film, the resin on the carbon fiber film is softened, making the combination of the carbon fiber film and the rotor closer, and the carbon fiber film will not fall off during subsequent winding.

[0052] Among them, when winding the carbon fiber film to the rotor, first, the end of the carbon fiber film is attached to the rotor through the clamping assembly 4. Preferably, the circumferential angle corresponding to the area where the clamping assembly 4 drives the carbon fiber film to wrap around the rotor is 90 - 270 °, that is, the area driven by the clamping assembly 4 for attachment is less than one week, preventing the clamping assembly 4 from rotating over a large area and colliding with other components or the carbon fiber film.

[0053] In this application, since the area driven by the clamping assembly 4 for attachment is less than one week, to ensure the tightness of the attachment, an adhesive is coated on the surface of the rotor. The adhesive is preferably the same resin as that contained in the carbon fiber film.

[0054] Preferably, the surface of the heating assembly 3 is provided with an anti - sticking coating. Since the carbon fiber film needs to be heated at the heating assembly 3, by providing an anti - sticking coating on the surface of the heating assembly, the carbon fiber film will not adhere to the heating assembly 3. Among them, the anti - sticking coating can be selected as Teflon or nano - ceramic coating.

[0055] In the present application, since the carbon fiber film is stored in a roll at the feeding roller 1, the carbon fiber film will unwind after being clamped and removed from the feeding roller 1 by the clamping assembly 4, that is, the carbon fiber film has a first surface and a second surface facing away from each other. When the carbon fiber film as a raw material is stored at the feeding roller 1, in order to protect the carbon fiber film, a first surface film 21 is selectively provided on the first surface, and a second surface film 22 is selectively provided on the second surface. Among them, the winding device further includes a first winding roller 9, and the first winding roller 9 can wind up the first surface film 21 located on the first surface; the winding device further includes a second winding roller 10, and the second winding roller 10 can wind up the second surface film 22 located on the second surface. When it is necessary to provide the first surface film 21 and the second surface film 22, the first surface film 21 and the second surface film 22 can play a protective role for the carbon fiber film. At the same time, the first surface film 21 can be wound up by the first winding roller 9, and the second surface film 22 can be wound up by the second winding roller 10. After the carbon fiber film is removed from the feeding roller 1, the provided first surface film 21 and second surface film 22 can be separated simultaneously. It can be understood that when the carbon fiber film is not provided with the first surface film 21 and the second surface film 22, there is no need for the first winding roller 9 and the second winding roller 10 to wind up.

[0056] In the present application, due to the different models of the carbon fiber film, the first surface film 21 and the second surface film 22 are set differently according to the models. For example, only the first surface film 21 can be provided on the first surface of the carbon fiber film, that is, the second surface film 22 is not provided on the second surface. At this time, only the first surface film 21 on the first surface needs to be wound up by the first winding roller 9; or, only the second surface film 22 can be provided on the second surface of the carbon fiber film, that is, the first surface film 21 is not provided on the first surface. At this time, only the second surface film 22 on the second surface needs to be collected by the second winding roller 10; and when the first surface film 21 is provided on the first surface and the second surface film 22 is provided on the second surface, the first winding roller 9 and the second winding roller 10 are started simultaneously so that both the first surface film 21 and the second surface film 22 can be separated from the carbon fiber film.

[0057] In the present application, when the carbon fiber film is removed from the feeding roller 1, it is first clamped by the clamping assembly 4. The clamping assembly 4 clamps one end of the rolled carbon fiber film, thereby pulling out the carbon fiber film from the feeding roller 1 and winding the end of the carbon fiber film around the rotor. After the end of the carbon fiber film is fixed at the rotor, the carbon fiber film continues to be wound around the rotor.

[0058] Preferably, the winding device further includes a rotor shaft for supporting the rotor, and the rotor shaft can drive the rotor to rotate.

[0059] After the carbon fiber film at the rotor is wound up, since the carbon fiber film is set in a roll at the feeding roller 1 and is continuously wound when winding to the rotor, after winding is completed, the carbon fiber film needs to be cut by the cutting assembly 7 so that the carbon fiber film at the rotor is separated from the carbon fiber film at the feeding roller 1, thereby completing the winding of the carbon fiber film at the rotor. Among them, the cutting assembly 7 is arranged under the carbon fiber film when set, and when the cutting assembly 7 moves upward, it can cut off the carbon fiber film.

[0060] When cutting the carbon fiber film, since both sides of the cutting position are wound around the rotor and the feeding roller 1 respectively, and the cutting assembly 7 will also lift the carbon fiber film when moving upward for cutting, so that the carbon fiber film is in a taut state under the restriction of the rotor and the feeding roller 1, which is convenient for the cutting assembly 7 to achieve cutting; preferably, the winding device further includes a pressing assembly 8 located between the feeding roller 1 and the cutting assembly 7, and the pressing assembly 8 has a feeding state for the carbon fiber film to pass through and a pressing state for pressing the carbon fiber film. When the pressing assembly 8 is in the pressing state, the cutting assembly 7 cuts the carbon fiber film; when the carbon fiber film is wound from the feeding roller 1 to the rotor, at this time the pressing assembly 8 is in the feeding state to enable the carbon fiber film to pass through smoothly, and when it is necessary to cut the carbon fiber film, the pressing assembly 8 switches from the feeding state to the pressing state. The carbon fiber film is pressed tightly. When the cutting assembly 7 cuts the carbon fiber film, due to the pressing of the pressing assembly 8, it will not affect the carbon fiber film at the feeding roller 1, so as to facilitate controlling the length of the exposed carbon fiber film after cutting.

[0061] It can be understood that in the present application, the pressing assembly 8 can be composed of a fixing part located under the carbon fiber film and a pressing part located above the carbon fiber film. Among them, the pressing part can move vertically relative to the fixing part. When the pressing part moves away from the fixing part, that is, when the pressing assembly 8 is in the feeding state, the carbon fiber film can pass between the fixing part and the pressing part, and when the pressing part moves towards the fixing part and abuts against the pressing part, at this time the pressing assembly 8 switches to the pressing state to press the carbon fiber film between the fixing part and the pressing part.

[0062] In this embodiment, the heating assembly 3 is in a plate-like structure. The heating assembly 3 has a feeding end close to the feeding roller 1 and a winding end far from the feeding roller 1. The cutting assembly 7 is located between the feeding end and the feeding roller 1. The initial position of the rotor is at the winding end, and the rotor can rotate from the winding end to the feeding end; the heating assembly 3 is in a plate-like structure. When the clamping assembly drives the carbon fiber film to move from the clamping position to the winding position, the carbon fiber film at the feeding roller is drawn out and located above the heating assembly, so that the heating assembly can heat the carbon fiber film. And the heating assembly 3 has a certain length, so that the heating of the carbon fiber film is more thorough and uniform, and the carbon fiber film can better adhere to the rotor.

[0063] In this embodiment, the rotor can move along the length direction of the heating component 3, that is, roll from the winding end to the feeding end. During the rolling process of the rotor, the end of the carbon fiber film has been fixed to the rotor. Therefore, when the rotor rotates, it will also wind the carbon fiber film around the rotor. When the rotor rolls to the feeding end, the carbon fiber film is also wound up. Since the rotor abuts against the surface of the heating component 3, when cutting by the cutting component 7, the rotor can also press the carbon fiber film, and together with the pressing component, fix the carbon fiber film, enabling the cutting component 7 to quickly cut the carbon fiber film.

[0064] Preferably, the distance along the length direction of the heating component 3 is H, and the outer circumference of the rotor is h, where H > 5h. One rotation of the rotor means that the carbon fiber film winds around the rotor once. Usually, the number of turns that the carbon fiber film needs to wind is 5 - 8 turns. Preferably, when the clamping component 4 winds the carbon fiber film onto the rotor and the rotor starts to rotate, the length of the carbon fiber film at the heating component 3 is the length that needs to be wound onto the rotor.

[0065] Preferably, the winding device further includes a second roller 11 located between the feeding end and the cutting component 7. The second roller 11 can wind the end of the carbon fiber film cut by the cutting component 7 onto the rotor; when the cutting component 7 cuts the carbon fiber film, the rotor no longer rotates along the heating component 3. Therefore, after the cutting component 7 finishes cutting, there will still be a small part of the carbon fiber film remaining outside the rotor. Therefore, through the second roller 11, the remaining carbon fiber film after cutting can be pressed onto the rotor, thus completing the winding of the carbon fiber film at the rotor.

[0066] The present invention provides a method for winding carbon fiber on a rotor, which is applied to the winding device in Embodiment 1. The winding method includes:

[0067] Starting winding stage: The clamping component moves to the clamping position, clamps the carbon fiber film at the feeding roller, and moves from the clamping position to the winding position. At this time, the carbon fiber film is heated through the heating component. The clamping component at the winding position winds the carbon fiber film that extends beyond the heating component and is heated around the outer circumference of the rotor. The first roller abuts against the carbon fiber film wound around the rotor to press the end of the carbon fiber film onto the surface of the rotor.

[0068] Winding stage: The rotor rolls forward closely against the surface of the heating component, rolling up the carbon fiber film to wind it multiple layers around the outer circumference of the rotor; where rolling forward means that the rotor rolls towards the end of the heating component close to the feeding roller, thereby rolling up the carbon fiber film at the heating component.

[0069] Finishing winding stage: The rotor and the heating component clamp the carbon fiber film. After the cutting component cuts the carbon fiber film, a tail of the carbon fiber film remaining outside the rotor is formed, and the tail of the carbon fiber film remaining outside the rotor is wound onto the surface of the rotor.

[0070] It can be understood that since the second rotating roller is provided in this embodiment, the tail of the carbon fiber film remaining outside the rotor can be wound around the surface of the rotor through the second rotating roller; alternatively, since the rotor can rotate, the rotor can also be rotated to wind the tail of the carbon fiber film remaining outside the rotor around the surface of the rotor.

[0071] Preferably, in the starting winding stage, the clamping assembly clamps the carbon fiber film at the feeding roller, and before moving from the clamping position to the winding position, resin is coated on the surface of the rotor.

[0072] Preferably, the tension on the carbon fiber film in the starting winding stage is less than the tension in the winding stage. Since the end of the carbon fiber film is wound around the rotor in the starting winding stage, the tension at this time is small, which can prevent the carbon fiber film from separating from the rotor. In the winding stage, the end of the carbon fiber film wound around the rotor will be pressed tightly inside by the newly wound carbon fiber film. Therefore, when the rotor moves, the tension is large, which not only will not cause the carbon fiber film to fall off from the rotor, but also increasing the tension can keep the carbon fiber film to be wound in a tightened state, avoiding problems such as wrinkles and bubbles during the winding process.

[0073] Preferably, in the winding stage, there is no sliding between the carbon fiber film and the heating assembly; that is, after the carbon fiber film is clamped by the clamping assembly and the clamping assembly moves to the winding position, since the heating assembly is in a plate-like structure, the drawn carbon fiber film will cover the heating assembly, and the carbon fiber film and the heating assembly are relatively stationary. That is, when the rotor rolls forward, the carbon fiber film located at the heating assembly can be rolled up, and the carbon fiber film can be fully heated. At the same time, there is no sliding between the carbon fiber film and the heating assembly, which can avoid wrinkling of the carbon fiber film during winding and the winding effect is better.

[0074] Embodiment Two

[0075] As Figures 7 to 10 shown, as another embodiment of the present application, the difference from the above embodiment is that the heating assembly 3 is in a roller-like structure, and the rotor wound with the carbon fiber film can move above the heating assembly 3, and the rotor can rotate circumferentially relative to the heating assembly 3. In this embodiment, the heating assembly 3 and the rotor are distributed vertically. The clamping assembly 4 can also move from the area far from the rotor to the area where the rotor contacts the heating assembly 3, so as to wind the carbon fiber film around the rotor. At this time, the rotor rotates and drives the heating assembly 3 to rotate synchronously, completing the winding and pressing of the carbon fiber film, which can save the overall winding equipment

[0076] and complete the winding and pressing of the carbon fiber film, which can save the overall winding equipment

[0077] Occupied space. Since the instantaneous contact area between the heating component 3 and the carbon fiber film is relatively small, during the winding process, the rotation speed of the rotor can be relatively slow, so that the carbon fiber film can be fully heated through the heating component 3.

[0078] In this embodiment, since the heating component 3 and the rotor are vertically distributed and can clamp the carbon fiber film located therein, when the cutting component 7 performs cutting, the rotor, the heating component 3 and the material pressing component 8 fix both sides of the carbon fiber film together. And after cutting is completed, the part of the carbon fiber film remaining outside the rotor can also be attached to the rotor under the rotation of the rotor and be pressed by the heating component 3.

[0079] The present invention provides a rotor carbon fiber winding method, which is applied to the winding equipment in Embodiment 2. The winding method includes:

[0080] Starting winding stage: The clamping component moves to the clamping position and clamps the carbon fiber film located at the feeding roller,

[0081] and moves from the clamping position to the winding position. At this time, the carbon fiber film is heated through the heating component. The clamping component at the winding position winds the carbon fiber film that extends beyond the heating component and is heated around the outer periphery of the rotor. The first roller abuts against the carbon fiber film wound around the rotor, so that the end of the carbon fiber film is pressed against the surface of the rotor.

[0082] Winding stage: The rotor rotates in place close to the surface of the heating component, and winds up the carbon fiber film to wind it around the outer periphery of the rotor in multiple layers.

[0083] Final winding stage: The rotor and the heating component clamp the carbon fiber film. After the cutting component cuts the carbon fiber film, a tail of the carbon fiber film remaining outside the rotor is formed. The rotor continues to rotate in place close to the surface of the heating component, and winds the tail of the carbon fiber film remaining outside the rotor around the surface of the rotor.

[0084] Preferably, in the starting winding stage, the clamping component clamps the carbon fiber film located at the feeding roller, and before moving from the clamping position to the winding position, resin is coated on the surface of the rotor.

[0085] Preferably, the tensile force on the carbon fiber film in the starting winding stage is less than the tensile force in the winding stage.

[0086] Preferably, in the winding stage, no sliding occurs between the carbon fiber film and the heating component; since the heating component is in a roller structure and the axis position of the heating component is fixed, the heating component can rotate around its own axis under the rotation of the rotor, so no relative sliding occurs between the carbon fiber film and the heating component either.

[0087] It can be understood that, in this embodiment, compared with the first embodiment, since the heating component is in a roller structure, the instantaneous contact area with the carbon fiber film is relatively small. Therefore, during the winding process, the rotation speed of the rotor in this embodiment is lower than that of the rotor in the first embodiment to ensure that the carbon fiber film has sufficient heating time.

[0088] The above are only the embodiments of the present application and are not intended to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included within the scope of the claims of the present application.

Claims

1. A rotor carbon fiber winding device, characterized in that, Comprising: A feeding roller (1) for storing a carbon fiber film (2), and the carbon fiber film (2) can be wound around the surface of a rotor (5); A heating assembly (3) for heating the carbon fiber film (2) that moves from the feeding roller (1) to the rotor (5); A clamping assembly (4) having a clamping position for clamping the carbon fiber film and a winding position on the side of the heating assembly (3) away from the feeding roller (1). The clamping assembly (4) at the winding position can rotate circumferentially around the rotor (5) to wind the carbon fiber film clamped by the clamping assembly (4) around the rotor (5); A first roller (6) located on the side of the rotor (5). When the end of the carbon fiber film is wound around the rotor (5), the first roller (6) can be abutted against the rotor (5) by the carbon fiber film, and the first roller (6) can rotate circumferentially around the rotor (5) to press the end of the carbon fiber film against the rotor (5); A cutting assembly (7) provided between the feeding roller (1) and the clamping assembly (4) for cutting the carbon fiber film (2).

2. The rotor carbon fiber winding device according to claim 1, characterized in that, An anti-sticking coating is provided on the surface of the heating assembly (3).

3. The rotor carbon fiber winding device according to claim 1, characterized in that, The feeding roller (1) is connected with a braking device which can adjust the tension when the carbon fiber film (2) is drawn out from the feeding roller (1).

4. The rotor carbon fiber winding device according to claim 1, characterized in that, The winding device further includes a pressing component (8) located between the feeding roller (1) and the cutting assembly (7). The pressing component (8) has a feeding state for the carbon fiber film to pass through and a pressing state for pressing the carbon fiber film. When the pressing component (8) is in the pressing state, the cutting assembly (7) cuts the carbon fiber film.

5. The rotor carbon fiber winding device according to claim 1, characterized in that, The carbon fiber film has opposite first and second surfaces. Optionally, a first surface film (21) is provided on the first surface, and a second surface film (22) is provided on the second surface; The winding device further includes a first winding roller (9) which can wind the first surface film (21) located on the first surface; and / or A second winding roller (10) which can wind the second surface film (22) located on the second surface.

6. The rotor carbon fiber winding device according to any one of claims 1-5, characterized in that, The heating assembly (3) is of a plate-like structure. The heating assembly (3) has a feeding end adjacent to the feeding roller and a winding end away from the feeding roller. The cutting assembly (7) is located between the feeding end and the feeding roller (1). The initial position of the rotor (5) is at the winding end, and the rotor can rotate from the winding end to the feeding end.

7. The rotor carbon fiber winding device according to claim 6, characterized in that, The distance of the heating assembly (3) in its length direction is H, and the outer circumference of the rotor (5) is h, where H > 5h.

8. The rotor carbon fiber winding device according to claim 6, characterized in that, The winding device further includes a second roller (11) located between the feeding end and the cutting assembly (7), and the second roller (11) can wind the end of the carbon fiber film cut by the cutting assembly (7) onto the rotor (5).

9. The rotor carbon fiber winding device according to any one of claims 1-5, characterized in that, The heating assembly (3) is in a roller structure. The rotor (5) wound with the carbon fiber film can move above the heating assembly (3), and the rotor (5) can rotate circumferentially relative to the heating assembly (3).

10. A rotor carbon fiber winding method, characterized in that, Applied to the winding device according to any one of claims 1-8, the winding method includes: Starting winding stage: The clamping assembly (4) moves to the clamping position, clamps the carbon fiber film (2) at the feeding roller (1), and moves from the clamping position to the winding position. At this time, the carbon fiber film is heated via the heating assembly (3). The clamping assembly (4) at the winding position winds the carbon fiber film (2) that extends beyond the heating assembly (3) and is heated around the outer periphery of the rotor (5), and the first roller (6) abuts against the carbon fiber film wound around the rotor (5) to press the end of the carbon fiber film against the surface of the rotor (5). Winding stage: The rotor (5) rolls forward closely against the surface of the heating assembly (3) to roll up the carbon fiber film for multi-layer winding around the outer periphery of the rotor (5). End winding stage: The rotor (5) and the heating assembly (3) clamp the carbon fiber film. After the cutting assembly (7) cuts the carbon fiber film, a tail of the carbon fiber film remaining outside the rotor (5) is formed, and the tail of the carbon fiber film remaining outside the rotor (5) is wound onto the surface of the rotor (5).

11. A rotor carbon fiber winding method, characterized in that, Applied to the winding device according to claim 9, the winding method includes: Starting winding stage: The clamping assembly (4) moves to the clamping position, clamps the carbon fiber film (2) at the feeding roller (1), and moves from the clamping position to the winding position. At this time, the carbon fiber film is heated via the heating assembly (3). The clamping assembly (4) at the winding position winds the carbon fiber film (2) that extends beyond the heating assembly (3) and is heated around the outer periphery of the rotor (5), and the first roller (6) abuts against the carbon fiber film wound around the rotor (5) to press the end of the carbon fiber film against the surface of the rotor (5). Winding stage: The rotor (5) rotates in place closely against the surface of the heating assembly (3) to roll up the carbon fiber film for multi-layer winding around the outer periphery of the rotor (5). End winding stage: The rotor (5) and the heating assembly (3) clamp the carbon fiber film. After the cutting assembly (7) cuts the carbon fiber film, a tail of the carbon fiber film remaining outside the rotor (5) is formed, and the rotor (5) continues to rotate in place closely against the surface of the heating assembly (3) to wind the tail of the carbon fiber film remaining outside the rotor (5) onto the surface of the rotor (5).

12. The rotor carbon fiber winding method according to claim 10 or 11, characterized in that, In the starting winding stage, the clamping assembly clamps the carbon fiber film (2) located at the feeding roller (1), and resin is coated on the surface of the rotor (5) before moving from the clamping position to the winding position.

13. A method for winding carbon fiber on a rotor according to claim 10 or 11, characterized in that The tensile force on the carbon fiber film in the starting winding stage is less than that in the winding stage.

14. A method for winding carbon fiber on a rotor according to claim 10 or 11, characterized in that In the winding stage, no sliding occurs between the carbon fiber film and the heating assembly (3).

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