Efficient carbon fiber precursor winding device based on intelligent tension control

Abstract

The invention relates to the technical field of carbon fiber production, in particular to an efficient carbon fiber precursor winding device based on intelligent tension control, which comprises a tension mechanism, the tension mechanism comprises a mounting plate and a plurality of tension structures, the plurality of tension structures are arranged on one side of the mounting plate, and a carbon fiber precursor sequentially passes through the plurality of tension structures and is wound on the mounting plate. The tension structure comprises a support connected with the mounting plate, a tension assembly arranged on the support and a swing structure, the tension assembly comprises a horizontally-arranged first tension roller, and the swing structure is used for driving the first tension roller to swing around a straight line in the moving direction of the carbon fiber precursors; the swing circle center of the first tension roller deviates from the straight line where the moving direction of the carbon fiber precursors is located, and an intelligent control system capable of controlling the multiple tension structures to operate independently is arranged on the other side of the mounting plate. And a plurality of tension structures and intelligent control systems are arranged, so that the effective contact range of the first tension roller and the carbon fiber precursor is enlarged, and the effective service cycle of the first tension roller is remarkably expanded.

Description

Technical Field

[0001] The present invention relates to the technical field of carbon fiber production, and more specifically, to an efficient carbon fiber precursor winding device based on intelligent tension control. Background Art

[0002] As a high-performance reinforcing material, carbon fiber has been widely used in the fields of aerospace, national defense, new energy, etc. due to its excellent properties such as high strength, low density, and corrosion resistance. With the continuous improvement of the quality and performance requirements of carbon fiber products in various industries, the production quality control of carbon fiber precursors has become increasingly critical. Among them, the winding process, as an important process in precursor production, directly affects the physical properties of the precursor and its suitability for subsequent processing.

[0003] The patent with the publication number CN222714797U discloses a carbon fiber precursor winding and unwinding device, which is provided with an odd number of tension rollers. The carbon fiber precursor passes through these tension rollers in sequence, and the tension of the precursor is controlled through the contact and friction between the rollers. A motor drives one of the tension rollers to rotate, and a belt connects all the tension rollers to ensure the synchronous rotation of the remaining tension rollers. After the motor is started, all the tension rollers are driven to rotate synchronously through the belt, so that the force exerted on the precursor by each tension roller is uniform, ensuring the stability and uniformity of the tension.

[0004] Although the stability of the carbon fiber precursor tension is achieved in the above solution, the positions of the tension rollers in the solution are fixed. To ensure that the tension of the carbon fiber precursor remains unchanged, the carbon fiber precursor needs to maintain a constant movement path, and the carbon fiber precursor cannot withstand the force perpendicular to the straight line where the movement direction of the carbon fiber precursor is located. This results in a fixed contact position between the tension roller and the carbon fiber precursor. Summary of the Invention

[0005] To address the above problems, an efficient carbon fiber precursor winding device based on intelligent tension control is provided. By setting multiple tension structures and an intelligent control system, the effective contact range between the first tension roller and the carbon fiber precursor is increased, and the effective service life of the first tension roller is significantly extended.

[0006] To solve the problems of the existing technology, the present invention provides an efficient carbon fiber roving winding device based on intelligent tension control, which includes a tension mechanism arranged at the front end of the winding mechanism. The carbon fiber roving enters the winding mechanism after passing through the tension mechanism. The tension mechanism includes a mounting plate and a plurality of tension structures. The plurality of tension structures are arranged on one side of the mounting plate. The carbon fiber roving sequentially passes through the plurality of tension structures. Each tension structure includes a bracket connected to the mounting plate, a tension component arranged on the bracket, and a swing structure. The tension component includes a first tension roller arranged horizontally. The swing structure is used to drive the first tension roller to swing around the straight line where the moving direction of the carbon fiber roving is located, and the swing center of the first tension roller deviates from the straight line where the moving direction of the carbon fiber roving is located. An intelligent control system capable of controlling the independent operation of the plurality of tension structures is arranged on the other side of the mounting plate.

[0007] Preferably, the tension component further includes an arc-shaped frame and a mounting frame; the bottom of the arc-shaped frame is fixed on the bracket, and a limiting groove is formed on the arc-shaped frame; the mounting frame is arranged inside the arc-shaped frame, and limiting rods matched with the limiting groove are arranged at both ends of the mounting plate, and the limiting rods are connected to the swing structure.

[0008] Preferably, there are at least two tension components. The two tension components are arranged in parallel, and the swinging directions of the first tension rollers in the two tension components around the straight line where the moving direction of the carbon fiber roving is located are opposite.

[0009] Preferably, the tension structure further includes at least two limiting and guiding components. The two limiting and guiding components are respectively arranged on both sides of the tension component, and the two limiting and guiding components are used to limit the moving path of the carbon fiber roving at the tension component.

[0010] Preferably, the tension component includes a second tension roller and a synchronous rotation component; the second tension roller is parallel to the first tension roller, and both ends of the second tension roller are connected to the mounting plate through bearing seats; the synchronous rotation component is used to keep the rotation speeds of the first tension roller and the second tension roller the same and the rotation directions opposite.

[0011] Preferably, the swing structure includes two driving arm components and a reverse movement component; the two driving arm components respectively correspond to the two tension components. Each driving arm component includes a track and a slider arranged on the track, and a driving plate connected to the mounting frame is arranged on the slider; the reverse movement component is used to drive the two sliders to move in opposite directions.

[0012] Preferably, each driving arm component further includes a connecting plate and a connecting rod; the middle of the connecting plate is connected to the driving plate, and a vertical sliding groove is formed on the connecting plate; the connecting rod is slidably arranged in the sliding groove, and the connecting rod is connected to the limiting rod.

[0013] Preferably, the reverse movement component includes a third gear and two racks; the third gear is horizontally arranged between the two driving plates, and a rotating shaft rotatably connected to the bracket is arranged in the middle of the third gear; the two racks are respectively connected to the two driving plates, and both racks are engaged with the third gear.

[0014] Preferably, there are two swinging structures, and the two swinging structures are respectively arranged at both ends of the tension component. A synchronous driving structure is arranged between the two swinging structures, and the synchronous driving structure is used to drive the two swinging structures to apply acting forces to both ends of the tension component synchronously.

[0015] Preferably, the tension structure further includes a lifting structure, and the lifting structure includes a guiding connection component and a linear driver; the guiding connection component is used to guide the bracket to move in the vertical direction; the linear driver is used to drive the bracket to move along the guiding component.

[0016] The beneficial effects of the present invention compared with the prior art are as follows: 1. The present invention is provided with multiple tension structures and an intelligent control system. The intelligent control system monitors and independently controls the multiple tension structures in real time, making the acting forces applied by each tension structure to the carbon fiber roving uniform and consistent, effectively avoiding the risk of twist generation in the roving due to uneven force, ensuring the tension stability of the carbon fiber roving during the winding process, and thus guaranteeing the winding quality. The swinging structure in the tension structure drives the first tension roller to swing around the straight line where the moving direction of the carbon fiber roving is located, and the swinging center is deviated from this straight line. Without generating an additional acting force perpendicular to the moving direction of the roving, the contact part between the first tension roller and the carbon fiber roving is changed, avoiding the rapid wear of the local surface coating of the first tension roller, thereby increasing the effective contact range between the first tension roller and the carbon fiber roving and significantly extending the effective service life of the first tension roller.

[0017] 2. The present invention is provided with an arc-shaped frame and a mounting frame. The cooperation between the limit groove on the arc-shaped frame and the two limit rods on the mounting frame provides a structural basis for realizing the eccentric swinging trajectory of the first tension roller. At the same time, the cooperation between the two limit rods and the limit groove on the arc-shaped frame also forms a stable guiding structure. When the swinging structure drives the mounting frame to move, the two limit rods slide in the limit groove, which can effectively limit the moving direction of the mounting frame, maintain the stability of the mounting frame movement, ensure the position accuracy of the first tension roller during the swinging process, and thus realize the conversion of the driving force of the swinging structure into the eccentric swinging trajectory of the first tension roller.

[0018] 3. The present invention provides at least two tension components, and the swinging directions of the first tension rollers in two adjacent tension components around the carbon fiber roving are opposite, enabling the carbon fiber roving to maintain a locally horizontal state under the action of the two first tension rollers. When one first tension roller swings towards one side of the moving direction of the carbon fiber roving, the other first tension roller swings in the opposite direction, forming a V-shaped support structure. This structure effectively avoids the situation where the carbon fiber roving tilts due to the swinging of a single first tension roller, provides stable support for the carbon fiber roving, and thus effectively suppresses the problem of unstable tension caused by the sliding of the carbon fiber roving when a single first tension roller swings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a perspective view of the tension mechanism in an efficient carbon fiber roving winding device based on intelligent tension control according to the present invention.

[0020] Figure 2 is a left view of the tension mechanism in an efficient carbon fiber roving winding device based on intelligent tension control according to the present invention.

[0021] Figure 3 is Figure 2 a cross-sectional view taken along line A-A in

[0022] Figure 4 is a perspective view of the tension structure in an efficient carbon fiber roving winding device based on intelligent tension control according to the present invention.

[0023] Figure 5 is a perspective view of the tension component in an efficient carbon fiber roving winding device based on intelligent tension control according to the present invention.

[0024] Figure 6 is a perspective view of the tension component and the limit guiding component in an efficient carbon fiber roving winding device based on intelligent tension control according to the present invention.

[0025] Figure 7 is a perspective view of the first tension roller, the mounting bracket, the second tension roller, and the synchronous rotation component in an efficient carbon fiber roving winding device based on intelligent tension control according to the present invention.

[0026] Figure 8 is a perspective view of the tension component and the swinging structure in an efficient carbon fiber roving winding device based on intelligent tension control according to the present invention.

[0027] Figure 9 is a perspective view of the driving arm component and the reverse movement component in an efficient carbon fiber roving winding device based on intelligent tension control according to the present invention.

[0028] Figure 10It is a three-dimensional view of the bracket, swing structure and synchronous drive structure in an efficient carbon fiber precursor winding device based on intelligent tension control of the present invention.

[0029] Figure 11 It is a three-dimensional view of the bracket and lifting structure in an efficient carbon fiber precursor winding device based on intelligent tension control of the present invention.

[0030] The reference numerals in the figure are: 1, mounting plate; 2, tension structure; 21, bracket; 22, tension component; 221, first tension roller; 222, arc-shaped frame; 2221, limit groove; 223, mounting frame; 2231, limit rod; 224, second tension roller; 225, synchronous rotation component; 2251, first gear; 2252, second gear; 23, swing structure; 231, drive arm component; 2311, track; 2312, slider; 2313, drive plate; 2314, connecting plate; 2315, connecting rod; 232, reverse movement component; 2321, third gear; 2322, rotating shaft; 2323, rack; 24, limit guiding component; 241, support rod; 242, limit guiding wheel; 25, synchronous drive structure; 251, rotary driver; 252, driving wheel; 253, driven wheel; 254, transmission belt; 26, lifting structure; 261, guiding connection component; 2611, guide rod; 2612, connection block; 262, linear driver; 3, intelligent control system. Specific embodiments

[0031] To further understand the features, technical means, specific purposes and functions achieved by the present invention, the present invention will be described in further detail below in conjunction with the drawings and specific embodiments.

[0032] Refer to Figures 1 to 11 As shown: An efficient carbon fiber precursor winding device based on intelligent tension control includes a tension mechanism arranged at the front end of a winding mechanism (not shown in the figure). The carbon fiber precursor passes through the tension mechanism and enters the winding mechanism. The tension mechanism includes a mounting plate 1 and a plurality of tension structures 2. The plurality of tension structures 2 are arranged on one side of the mounting plate 1. The carbon fiber precursor sequentially passes through the plurality of tension structures 2. The tension structure 2 includes a bracket 21 connected to the mounting plate 1, a tension component 22 arranged on the bracket 21, and a swing structure 23. The tension component 22 includes a horizontally arranged first tension roller 221. The swing structure 23 is used to drive the first tension roller 221 to swing around the straight line where the moving direction of the carbon fiber precursor is located, and the swing center of the first tension roller 221 deviates from the straight line where the moving direction of the carbon fiber precursor is located. An intelligent control system 3 capable of controlling the independent operation of the plurality of tension structures 2 is arranged on the other side of the mounting plate 1.

[0033] During operation, the carbon fiber roving is output from the unwinding end. After entering the tension mechanism, it successively bypasses the first tension rollers 221 of multiple tension structures 2, forming an S-shaped path. The intelligent control system 3 monitors the action states of each tension structure 2 on the carbon fiber roving in real time and independently controls each tension structure 2 to ensure that the acting forces exerted by each tension structure 2 on the carbon fiber roving are uniform, effectively avoiding the risk of the roving generating twist due to uneven force. The first tension roller 221 mainly relies on the low-friction coating on its surface to maintain a constant acting force on the carbon fiber roving. Since the moving path of the carbon fiber roving is fixed, the carbon fiber roving continuously contacts the same part of the first tension roller 221, resulting in relatively fast wear of the local surface coating of the first tension roller 221, affecting the acting force of the first tension roller 221 on the carbon fiber roving. Therefore, it is necessary to continuously adjust the position of the first tension roller 221 during the winding process of the carbon fiber roving. If the position of the first tension roller 221 is adjusted along the axis direction of the first tension roller 221, then the first tension roller 221 will exert a force perpendicular to the straight line where the moving direction of the carbon fiber roving is located on the carbon fiber roving, affecting the winding of the carbon fiber roving. Therefore, during the winding process of the carbon fiber roving, the intelligent control system 3 continuously controls the swing structure 23 to drive the first tension roller 221 to swing around the center deviating from the straight line where the moving direction of the carbon fiber roving is located. This swinging process only changes the contact part between the first tension roller 221 and the carbon fiber roving, without generating an additional force perpendicular to the moving direction of the roving, avoiding interfering with the winding process, thereby increasing the effective contact range between the first tension roller 221 and the carbon fiber roving and significantly extending the effective service life of the first tension roller 221.

[0034] Refer to Figure 3 、 Figure 4 and Figure 5 As shown: The tension assembly 22 further includes an arc-shaped frame 222 and a mounting frame 223; the bottom of the arc-shaped frame 222 is fixed on the bracket 21, and a limiting groove 2221 is opened on the arc-shaped frame 222; the mounting frame 223 is arranged inside the arc-shaped frame 222, and limiting rods 2231 that cooperate with the limiting groove 2221 are arranged at both ends of the mounting plate 1, and the limiting rods 2231 are connected to the swing structure 23.

[0035] The straight line where the moving direction of the carbon fiber precursor is located deviates from the axis of the arc-shaped frame 222. When the first tension roller 221 is in a horizontal state, the first tension roller 221 contacts the carbon fiber precursor, enabling the first tension roller 221 to transmit the acting force to the carbon fiber precursor. When the swing structure 23 drives the first tension roller 221 to swing, if the first tension roller 221 swings around the straight line where the carbon fiber precursor is located, it is still the same part of the first tension roller 221 that contacts the carbon fiber precursor. Therefore, the swing center of the first tension roller 221 needs to deviate from the straight line where the moving direction of the carbon fiber precursor is located. By setting the arc-shaped frame 222 and the mounting frame 223, the swing structure 23 drives the mounting frame 223 to move on the arc-shaped frame 222. The two limit rods 2231 on the mounting frame 223 both slide in the limit slots 2221. The two limit rods 2231 can maintain the stability of the movement of the mounting frame 223, enabling the mounting frame 223 to drive the first tension roller 221 to swing stably, thereby realizing the conversion of the driving force of the swing structure 23 into the eccentric swing trajectory of the first tension roller 221.

[0036] Refer to Figure 4 and Figure 5 As shown: There are at least two tension components 22. The two tension components 22 are arranged in parallel, and the swinging directions of the first tension rollers 221 in the two tension components 22 around the straight line where the moving direction of the carbon fiber precursor is located are opposite.

[0037] When there is only one first tension roller 221, when the first tension roller 221 swings towards the side of the carbon fiber precursor, the carbon fiber precursor is in a tensioned state, which may cause the carbon fiber precursor to slide along the inclined first tension roller 221, resulting in a change in the tension of the carbon fiber precursor. Therefore, at least two tension components 22 are provided. The first tension rollers 221 in two adjacent tension components 22 swing in different directions during the swinging process. The carbon fiber precursor can be kept locally horizontal under the action of the two first tension rollers 221. When one first tension roller 221 swings towards the side of the moving direction of the carbon fiber precursor, the other first tension roller 221 swings towards the side opposite to the moving direction of the carbon fiber precursor, forming a V-shaped support structure with the two first tension rollers 221. In this structural form, the carbon fiber precursor is simultaneously subjected to symmetrically distributed supporting forces on both sides. This supporting force offsets the sliding tendency of the precursor that may be caused by the inclination of the first tension roller 221, avoiding the tension fluctuation caused by the sliding of the precursor. At the same time, the resultant force generated by the reverse swinging of the two first tension rollers 221 always maintains a force balance with the force in the moving direction of the carbon fiber precursor, ensuring that the precursor is continuously transmitted under a stable tension state, thereby effectively suppressing the problem of unstable tension caused by the sliding of the carbon fiber precursor when a single first tension roller 221 swings.

[0038] Refer to Figure 3 、 Figure 4 and Figure 6As shown: The tensegrity structure 2 further includes at least two limiting and guiding components 24, and the two limiting and guiding components 24 are respectively arranged on both sides of the tension component 22, and the two limiting and guiding components 24 are used to limit the moving path of the carbon fiber roving at the tension component 22.

[0039] Specifically, the limiting and guiding component 24 includes a support rod 241 and a limiting and guiding wheel 242. One end of the support rod 241 is connected to the mounting plate 1, and the limiting and guiding wheel 242 is connected to the other end of the support rod 241 through a bearing.

[0040] The part of the carbon fiber roving between the two first tension rollers 221 can keep the moving path unchanged during the swinging process of the two first tension rollers 221. However, for the carbon fiber roving outside the two first tension rollers 221, due to the change in the contact part with the first tension rollers 221, the moving path of the carbon fiber roving changes, and then the tension of the carbon fiber roving changes. Therefore, limiting and guiding components 24 are arranged on both sides of the tension component 22. The carbon fiber roving contacts one side of the limiting and guiding wheel 242, then bypasses the first tension rollers 221 of the two juxtaposed tension components 22, and then contacts the limiting and guiding wheel 242 on the other side. When the intelligent control system 3 drives the two first tension rollers 221 to swing in the opposite direction to avoid wear, due to the restraint of the limiting and guiding wheels 242 on both sides, the moving path of the carbon fiber roving between the two first tension rollers 221 always remains constant. When the first tension rollers 221 swing, it cannot affect the moving path of the carbon fiber roving, ensuring the stable transmission of the roving on the defined path, thereby effectively suppressing the tension fluctuation caused by path deviation and maintaining the tension uniformity and movement trajectory accuracy of the carbon fiber roving during the entire winding process.

[0041] Refer to Figure 5 and Figure 7 As shown: The tension component 22 includes a second tension roller 224 and a synchronous rotation component 225; the second tension roller 224 is parallel to the first tension roller 221, and both ends of the second tension roller 224 are connected to the mounting plate 1 through bearing seats; the synchronous rotation component 225 is used to keep the rotation speeds of the first tension roller 221 and the second tension roller 224 the same and the rotation directions opposite.

[0042] Specifically, the synchronous rotation component 225 includes a first gear 2251 and a second gear 2252. The first gear 2251 is coaxially connected to the first tension roller 221, the second gear 2252 is coaxially connected to the second tension roller 224, the first gear 2251 and the second gear 2252 are meshed, and the specifications of the first gear 2251 and the second gear 2252 are the same.

[0043] The carbon fiber roving between the two limit guide wheels 242 remains in a horizontal state, resulting in a small contact area between the first tension roller 221 and the carbon fiber roving. As a result, the force exerted by the first tension roller 221 cannot be effectively transmitted to the carbon fiber roving. Therefore, a second tension roller 224 parallel to the first tension roller 221 is provided. When the intelligent control system 3 controls the rotation of the first tension roller 221, the first gear 2251 coaxially connected thereto rotates accordingly. Based on the equal ratio characteristic of gear transmission, the first gear 2251 drives the second gear 2252 to rotate synchronously through tooth surface meshing, and then the second tension roller 224 rotates at the same speed and in the opposite direction as the first tension roller 221. During this process, the first tension roller 221 and the second tension roller 224 apply the same-direction forces to the carbon fiber roving in a symmetric contact form. Through the frictional coupling between the roller surface and the carbon fiber roving, the tension is evenly transmitted to both sides of the carbon fiber roving. Even when the contact area between the carbon fiber roving and a single roller is limited under the constraint of the limit guide assembly 24, the coordinated action of the first tension roller 221 and the second tension roller 224 can still ensure the effective transmission of tension, thus avoiding tension loss caused by insufficient contact between the carbon fiber roving and the first tension roller 221.

[0044] Refer to Figure 4 、 Figure 8 and Figure 9 As shown: The swing structure 23 includes two drive arm assemblies 231 and a reverse movement assembly 232; the two drive arm assemblies 231 respectively correspond to the two tension assemblies 22. The drive arm assembly 231 includes a track 2311 and a slider 2312 arranged on the track 2311. A drive plate 2313 connected to the mounting frame 223 is arranged on the slider 2312; the reverse movement assembly 232 is used to drive the two sliders 2312 to move in opposite directions.

[0045] When it is necessary to drive the adjacent two first tension rollers 221 to swing, the adjacent two mounting frames 223 need to swing in opposite directions. At this time, the reverse movement assembly 232 drives the two sliders 2312 to move in opposite directions respectively. One slider 2312 moves towards the carbon fiber roving, and the other slider 2312 moves away from the carbon fiber roving. The slider 2312 moving towards the carbon fiber roving drives the drive plate 2313 to move, and the drive plate 2313 drives the connected mounting frame 223 to swing counterclockwise on the corresponding arc-shaped frame 222. The slider 2312 moving away from the carbon fiber roving drives the drive plate 2313 to move synchronously, and the drive plate 2313 drives the connected mounting frame 223 to swing clockwise on the corresponding arc-shaped frame 222, so that the two first tension rollers 221 swing synchronously, at the same speed and in the same direction, thereby achieving balanced forces on both sides of the carbon fiber roving during the swinging process of the two first tension rollers 221.

[0046] Refer to Figure 8 and Figure 9As shown: The driving arm assembly 231 further includes a connecting plate 2314 and a connecting rod 2315; The middle of the connecting plate 2314 is connected to the driving plate 2313, and a vertical sliding groove is formed on the connecting plate 2314; The connecting rod 2315 is slidably arranged in the sliding groove, and the connecting rod 2315 is connected to the limiting rod 2231.

[0047] When the driving plate 2313 swings on the arc-shaped frame 222 of the driving mounting bracket 223, the heights of all parts on the mounting bracket 223 are changing. However, the driving plate 2313 is connected to the slider 2312, and its height position remains fixed. Therefore, the connection between the driving plate 2313 and the mounting bracket 223 needs to be a sliding connection. By providing the connecting plate 2314 with a sliding groove and the connecting rod 2315 slidably connected to the connecting plate 2314, when the first tension roller 221 is in a horizontal state, one end of the connecting rod 2315 is at the middle position of the sliding groove. When the driving plate 2313 exerts a force on the mounting bracket 223 towards the side of the carbon fiber roving, the connecting plate 2314 transmits the force to the mounting bracket 223 through the cooperation of the connecting rod 2315. During the movement of the mounting bracket 223, the connecting rod 2315 moves along the sliding groove. Conversely, when the driving plate 2313 exerts a force on the mounting bracket 223 towards the side away from the carbon fiber, the connecting rod 2315 moves in the opposite direction along the sliding groove, thereby eliminating the motion coupling problem caused by the height change between the driving plate 2313 and the mounting bracket 223 and improving the motion coordination of the driving arm assembly 231.

[0048] Refer to Figure 8 and Figure 9 As shown: The reverse movement assembly 232 includes a third gear 2321 and two racks 2323; The third gear 2321 is horizontally arranged between the two driving plates 2313, and a rotating shaft 2322 rotatably connected to the bracket 21 is provided in the middle of the third gear 2321; The two racks 2323 are respectively connected to the two driving plates 2313, and both of the two racks 2323 are engaged with the third gear 2321.

[0049] When it is necessary to drive the two first tension rollers 221 to swing, the third gear 2321 rotates around the axis of the rotating shaft 2322, and the two racks 2323 meshing with the third gear 2321 move in opposite directions respectively. Among them, one rack 2323 moves along the track 2311 towards the carbon fiber roving direction, driving the corresponding driving plate 2313 to move synchronously, and then driving the mounting bracket 223 to swing counterclockwise on the arc-shaped bracket 222. The other rack 2323 moves away from the carbon fiber roving direction, causing the corresponding driving plate 2313 to move in the opposite direction, realizing the clockwise swing of the mounting bracket 223. When the driving plate 2313 moves to the preset maximum stroke position, the third gear 2321 rotates in the reverse direction, changing the force application directions of the two racks 2323 through the tooth surface meshing relationship, so that the racks 2323 and the driving plate 2313 reverse their movement directions synchronously, thereby realizing the reverse synchronous movement of the two driving plates 2313 and providing a stable driving force for the reverse swing of the first tension roller 221.

[0050] Refer to Figure 8 、 Figure 9 and Figure 10 As shown in: There are two swing structures 23, and the two swing structures 23 are respectively arranged at both ends of the tension assembly 22. A synchronous drive structure 25 is arranged between the two swing structures 23, and the synchronous drive structure 25 is used to drive the two swing structures 23 to synchronously apply forces to both ends of the tension assembly 22.

[0051] Specifically, the synchronous drive structure 25 includes a rotary drive 251, a driving wheel 252, two driven wheels 253 and two transmission belts 254. The rotary drive 251 is arranged in the middle of the two rotating shafts 2322. The driving wheel 252 is connected to the output shaft of the rotary drive 251. The two driven wheels 253 are respectively connected to the two rotating shafts 2322. The two transmission belts 254 are respectively drivingly connected to the driving wheel 252 and the two driven wheels 253.

[0052] When it is necessary to drive the two mounting brackets 223 to swing along the two arc-shaped brackets 222 respectively, the synchronous drive structure 25 works. The rotary drive 251 drives the driving wheel 252 to rotate. The driving wheel 252 drives the two driven wheels 253 to rotate respectively through the two transmission belts 254. The two driven wheels 253 drive the two rotating shafts 2322 in the two swing structures 23 to rotate in the same direction and at the same speed. The rotating shaft 2322 drives the two drive arm assemblies 231 to move in opposite directions through the third gear 2321 connected thereto. Since the two swing structures 23 are symmetrically arranged and the synchronous drive structure 25 ensures the consistency of their movements, both ends of the mounting bracket 223 are simultaneously subjected to driving forces of equal magnitude and the same direction, thereby improving the smoothness of the sliding of the mounting bracket 223 on the arc-shaped bracket 222.

[0053] Refer to Figure 3 、 Figure 4 andFigure 11 As shown: The tensegrity structure 2 further includes a lifting structure 26, and the lifting structure 26 includes a guiding connection assembly 261 and a linear actuator 262; the guiding connection assembly 261 is used to guide the bracket 21 to move in the vertical direction; the linear actuator 262 is used to drive the bracket 21 to move along the guiding assembly.

[0054] Specifically, the guiding connection assembly 261 includes at least two guide rods 2611 that are parallel to each other and vertically arranged. There is a connection that is slidably connected to the two guide rods 2611 between the two guide rods 2611, and the connection block 2612 is connected to one end of the bracket 21.

[0055] Since the swing center of the first tension roller 221 deviates from the straight line where the moving direction of the carbon fiber roving is located, when the first tension roller 221 swings, the surface of the first tension roller 221 has a tendency to move downward away from the carbon fiber roving, and the second tension roller 224 has a tendency to squeeze the carbon fiber roving downward, which will cause the moving path of the carbon fiber roving to change. Therefore, during the swing of the first tension roller 221, compensation for the first tension roller 221 in the vertical direction is required. At this time, the lifting structure 26 is activated, and the linear actuator 262 in the lifting structure 26 drives the connection block 2612 to move along the guide rod 2611, and the connecting rod 2315 drives the bracket 21 and the tension assembly 22 installed on the bracket 21 to move synchronously along the guide rod 2611, so that both the first tension roller 221 and the second tension roller 224 remain in contact with the carbon fiber roving, and the acting forces exerted by the two on the carbon fiber roving remain unchanged, thereby offsetting the displacement deviation caused by the swing of the first tension roller 221 and ensuring the stable transmission of the carbon fiber roving on the predetermined path.

[0056] The above embodiments only represent one or several implementation manners of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. An efficient carbon fiber precursor winding device based on intelligent tension control, comprising a tension mechanism arranged at the front end of a winding mechanism, wherein the carbon fiber precursor enters the winding mechanism through the tension mechanism, and is characterized in that: The tension mechanism includes a mounting plate and a plurality of tension structures, wherein the plurality of tension structures are arranged on one side of the mounting plate, and the carbon fiber precursor passes through the plurality of tension structures in sequence, and the tension structure includes a bracket connected to the mounting plate, a tension assembly and a swing structure arranged on the bracket, and the tension assembly includes a first tension roller arranged horizontally, and the swing structure is used to drive the first tension roller to swing around a straight line in the moving direction of the carbon fiber precursor, and the swing center of the first tension roller deviates from the straight line in the moving direction of the carbon fiber precursor, and an intelligent control system capable of controlling the independent operation of the plurality of tension structures is arranged on the other side of the mounting plate.

2. According to claim 1, a high-efficiency carbon fiber precursor winding device based on intelligent tension control is characterized in that: The tension assembly also includes an arc frame and a mounting frame; The bottom of the arc frame is fixed on the bracket, and a limiting groove is provided on the arc frame; The mounting frame is arranged inside the arc-shaped frame, and both ends of the mounting plate are provided with limiting rods matched with the limiting grooves, and the limiting rods are connected with the swing structure.

3. The high-efficiency carbon fiber precursor winding device based on intelligent tension control according to claim 2 is characterized in that: There are at least two tension assemblies, which are arranged in parallel, and the first tension rollers in the two tension assemblies swing in opposite directions around the straight line where the carbon fiber precursor moves.

4. The high-efficiency carbon fiber precursor winding device based on intelligent tension control according to claim 1 is characterized in that: The tension structure also includes at least two limiting guide components, which are respectively arranged on both sides of the tension component, and the two limiting guide components are used to limit the movement path of the carbon fiber precursor at the tension component.

5. The high-efficiency carbon fiber precursor winding device based on intelligent tension control according to claim 2 is characterized in that: The tension assembly includes a second tension roller and a synchronous rotation assembly; The second tension roller is parallel to the first tension roller, and both ends of the second tension roller are connected to the mounting plate through a bearing seat; The synchronous rotation component is used to keep the first tension roller and the second tension roller rotating at the same speed and in opposite directions.

6. The high-efficiency carbon fiber precursor winding device based on intelligent tension control according to claim 1 is characterized in that: The swing structure includes two drive arm assemblies and a reverse movement assembly; The two driving arm assemblies correspond to the two tension assemblies respectively, and the driving arm assemblies include a track and a slider arranged on the track, and the slider is provided with a driving plate connected to the mounting frame; The reverse moving assembly is used to drive the two slide blocks to move in opposite directions.

7. The high-efficiency carbon fiber precursor winding device based on intelligent tension control according to claim 6 is characterized in that: The driving arm assembly also includes a connecting plate and a connecting rod; The middle part of the connecting plate is connected to the driving plate, and a vertical sliding groove is provided on the connecting plate; The connecting rod is slidably arranged in the sliding groove, and the connecting rod is connected with the limiting rod.

8. The high-efficiency carbon fiber precursor winding device based on intelligent tension control according to claim 6, characterized in that: The reverse movement assembly includes a third gear and two racks; The third gear is horizontally arranged between the two driving plates, and a rotating shaft rotatably connected to the bracket is arranged in the middle of the third gear; The two racks are connected to the two driving plates respectively, and both of the racks are meshed with the third gear.

9. The high-efficiency carbon fiber precursor winding device based on intelligent tension control according to claim 1, characterized in that: There are two swing structures, which are respectively arranged at two ends of the tension component. A synchronous driving structure is arranged between the two swing structures, and the synchronous driving structure is used to drive the two swing structures to synchronously apply force to the two ends of the tension component.

10. The high-efficiency carbon fiber precursor winding device based on intelligent tension control according to claim 1, characterized in that: The tension structure also includes a lifting structure, which includes a guide connection component and a linear drive; The guide connection assembly is used to guide the bracket to move in the vertical direction; The linear drive is used to drive the bracket to move along the guide assembly.

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