Three-dimensional torsion releasing device and multi-strand bundling type carbon fiber composite core cradle winding system

Abstract

The invention provides a three-dimensional torsion release device and a multi-strand cluster type carbon fiber composite core cradle winding system. The three-dimensional torsion release device comprises a base, a lifting assembly and a contact unit. The lifting assembly is arranged on the base in a sliding mode in the left-right direction, the lifting assembly is provided with a lifting ring moving in the up-down direction, and a connecting ring is rotationally arranged in the lifting ring; the contact unit is connected to the connecting ring, the contact unit is provided with two first rotating shafts and two second rotating shafts, the two first rotating shafts and the two second rotating shafts define a contact channel, and a carbon fiber core penetrates through the contact channel and is in rolling fit with the two first rotating shafts and the two second rotating shafts respectively. According to the three-dimensional torsion release device provided by the invention, through left-right movement of the lifting assembly, up-down movement of the lifting cylinder and axial rotary movement of the connecting ring, and in combination with the #-shaped frame type contact unit, cooperative tension adjustment and stress release of the carbon fiber core in the radial direction, the circumferential direction and the axial direction are realized.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of tension control, and particularly relates to a three-dimensional torsion releasing device and a multi-strand bundled carbon fiber composite core cradle winding system. BACKGROUND

[0002] A winding machine is a device for winding and rolling a coiled material according to certain requirements. The working principle of the winding machine is to set parameters, control tension, and realize the winding process to ensure that the winding quality and effect meet the expected requirements. In the winding process, the tension of the coiled material is controlled by a tension control device. The size and stability of the tension are very important to the winding process, and too high or too low tension will affect the winding quality and effect.

[0003] The bundled carbon fiber composite core (hereinafter referred to as carbon fiber core) has the characteristics of low elongation and high brittleness, and its sensitivity to tension during winding is higher than that of ordinary carbon fiber cores. The traditional tension control device generally uses a spring, but the spring is prone to failure after long-term use, resulting in poor tensioning effect. Moreover, the tension control device can only control the axial tension of the carbon fiber core, and the control effect is poor. Uneven radial pressure can cause interlayer slip, or circumferential tension fluctuation can cause the core rod to break, affecting the normal winding of the carbon fiber core and reducing the winding quality. SUMMARY

[0004] The embodiment of the application provides a three-dimensional torsion releasing device and a multi-strand bundled carbon fiber composite core cradle winding system, which aims to solve the technical problem that the self-twisting tension along the circumference of the cradle winding machine cannot be released when winding the multi-strand carbon fiber core, the core rod is self-twisted, the carbon fiber core is self-twisted and broken, and the winding quality is affected.

[0005] To achieve the above-mentioned purpose, the technical scheme adopted by the application is as follows: In a first aspect, a three-dimensional torsion releasing device is provided, which is arranged in front of a winding machine and includes: a base; a lifting assembly slidingly arranged on the base in a left-right direction, the lifting assembly having a lifting ring moving in an up-down direction, a connecting ring being rotatably arranged in the lifting ring, and the left-right direction being perpendicular to the winding direction of the carbon fiber core; and a contact unit connected to the connecting ring, the contact unit having two first rotation shafts and two second rotation shafts, the rotation axes of the two first rotation shafts and the rotation axes of the two second rotation shafts being perpendicular to each other and perpendicular to the front-rear direction, respectively, and the two first rotation shafts and the two second rotation shafts forming a contact channel, the carbon fiber core being arranged in the contact channel and being in rolling engagement with the two first rotation shafts and the two second rotation shafts, respectively.

[0006] In a possible implementation manner of the first aspect, the base includes: two support frames, which are arranged in a direction parallel to the left-right direction and are spaced apart from each other; a driving member arranged on the outside of one of the support frames, the driving member having a rotating output end, and an axis of rotation of the rotating output end being parallel to the left-right direction; and a rotating screw, two ends of the rotating screw being rotatably connected to the two support frames respectively, and one end of the rotating screw being connected to the rotating output end, an outer periphery of the rotating screw having external threads, and the lifting assembly corresponding to the external threads having internal threaded holes, the internal threaded holes being threadedly engaged with the external threads.

[0007] With reference to the first aspect, in a possible implementation manner, the base further includes a guide rod, two ends of the guide rod being rotatably connected to the two support frames respectively, an axial direction of the guide rod being parallel to an axial direction of the rotating screw, and the guide rod being slidably arranged in the lifting assembly.

[0008] With reference to the first aspect, in a possible implementation manner, the lifting assembly further includes: a moving seat, which is slidably arranged on the base in the left-right direction; a support frame, which is vertically arranged on a top of the moving seat, and a central axis of the support frame being parallel to the front-rear direction; and a lifting rod, which is vertically arranged in the support frame, a bottom end of the lifting rod extending into an inner frame of the support frame, and the bottom end of the lifting rod being rotatably connected to the lifting ring.

[0009] With reference to the first aspect, in a possible implementation manner, the lifting rod is a screw, a top of the support frame is provided with a threaded hole corresponding to the lifting rod, the threaded hole is threadedly engaged with the lifting rod, and the bottom end of the lifting rod is rotatably connected to the lifting ring. The support frame is provided with a vertically extending limiting groove corresponding to the lifting ring, and the limiting groove is in abutment with the lifting ring to limit rotation of the lifting ring around the vertical direction.

[0010] With reference to the first aspect, in a possible implementation manner, the bottom of the moving seat is further connected with a roller type displacement sensor. The bottom of the base is provided with a matching plate, an extending direction of the matching plate being parallel to a sliding direction of the lifting assembly, and the matching plate is in rolling engagement with the roller type displacement sensor.

[0011] With reference to the first aspect, in a possible implementation manner, the contact unit further comprises a shell connected with the front side of the connecting ring, the two first rotating shafts and the two second rotating shafts are respectively rotationally connected with the shell, the two first rotating shafts are located at the front side of the two second rotating shafts, and the axial direction of the first rotating shaft is perpendicular to the axial direction of the second rotating shaft; the two first rotating shafts are spaced apart, the two second rotating shafts are spaced apart, the carbon fiber core passes through between the two first rotating shafts and between the two second rotating shafts, and enters a winding machine for winding.

[0012] With reference to the first aspect, in a possible implementation manner, the connecting ring comprises: an inner ring connected with the front side of the shell, an outer circumferential surface of the inner ring being provided with a sliding ring groove; an outer ring slidingly arranged in the sliding ring groove, an outer circumferential surface of the outer ring being abutted with an inner circumferential surface of the lifting cylinder; and a rolling ring arranged between a side surface of the outer ring and a groove wall of the sliding ring groove, a plurality of rolling balls being rotationally arranged on the rolling ring, and the plurality of rolling balls are respectively rolling matched with the groove wall of the sliding ring groove and the outer ring.

[0013] With reference to the first aspect, in a possible implementation manner, the front side of the outer ring is integrally provided with a blocking ring, and a front end of the blocking ring protrudes out of a front end of the inner ring. The rolling ring is provided with two and respectively located at two sides of the outer ring, an inner and outer side surface of one of the rolling rings is respectively abutted with the blocking ring and the inner ring, and an inner and outer side surface of the other rolling ring is respectively abutted with the lifting cylinder and the inner ring.

[0014] The three-dimensional torsion release device provided in the application, compared with the prior art, through left and right movement of the lifting assembly, up and down movement of the lifting cylinder, axial rotary movement of the connecting ring, and in combination with the well-shaped contact unit, realizes three-dimensional tension coordinated adjustment and stress release in radial, circumferential and axial directions during winding of the carbon fiber core, and eliminates self-twisting phenomenon during winding. Through rolling matching and multi-directional movement compensation of the contact channel, torsional stress and local tension peak generated during winding of the carbon fiber core can be eliminated in real time, and self-twisting and large-length winding breaking accidents during winding are avoided. At the same time, the device realizes stress release through a mechanical structure, replaces the traditional spring structure which is prone to failure, avoids tension effect attenuation problem after long-term use of the spring, prolongs the service life of the equipment, and reduces the maintenance frequency. Rolling matching instead of sliding friction between the contact unit and the carbon fiber core can reduce abrasion on the surface of the carbon fiber core, protect the mechanical properties of the carbon fiber core from being damaged, and finally significantly improve the winding quality of the carbon fiber core.

[0015] The second aspect provides a multi-strand bundled carbon fiber composite core cradle winding system, comprising: The cradle winding machine body; and The three-dimensional torsion release device according to any one of the possible implementation manners above is arranged at the front side of the cradle winding machine body, the carbon fiber core passes through the contact passage of the three-dimensional torsion release device, and after the self torsion stress is completely released, the carbon fiber core is moved to the cradle winding machine body for winding.

[0016] Compared with the prior art, the multi-strand bundled carbon fiber composite core cradle winding system provided by the application realizes three-dimensional tension coordinated adjustment and stress release of the carbon fiber core in the radial direction, the circumferential direction and the axial direction through left and right movement of the lifting assembly, up and down movement of the lifting cylinder and axial rotary movement of the connecting ring in combination with the well-shaped frame contact unit, eliminates the self torsion phenomenon in the winding process and perfectly adapts to the iterative bundled carbon fiber composite core winding process with high flexibility and high reliability. Through rolling fit of the contact passage and multi-directional movement compensation, the torsion stress and local tension peak value generated by the carbon fiber core in the winding process can be eliminated in real time, and the self twisting and large length winding fracture accidents caused by winding are avoided. At the same time, the device realizes stress release through a mechanical structure, replaces the traditional spring structure which is prone to failure, avoids the problem of tension effect attenuation after long-term use of the spring, prolongs the service life of the equipment and reduces the maintenance frequency. The rolling fit of the contact unit and the carbon fiber core instead of sliding friction can reduce the wear on the surface of the carbon fiber core, protect the mechanical properties of the carbon fiber core from being damaged and finally significantly improve the winding quality of the carbon fiber core. The three-dimensional torsion release device is arranged at the front side of the winding machine body, so that the carbon fiber core first passes through the three-dimensional tension adjustment and stress release before entering the winding machine body, the torsion stress and local tension peak value generated by the bundled carbon fiber core in the yarn guiding process are eliminated in advance, the carbon fiber core entering the winding machine body is ensured to be in a low stress and uniform tension state, the tension control pressure of the winding machine body is greatly reduced and the overall winding quality is improved. At the same time, the automatic control characteristics of the three-dimensional torsion release device can be seamlessly connected with the control system of the cradle winding machine body, realizing parameter linkage. When the winding machine body detects that the winding diameter increases, a signal can be sent to the three-dimensional torsion release device at the same time to adjust the position of the lifting assembly and the angle of the contact unit, so as to ensure stable tension throughout the process and avoid the problem of parameter mismatch caused by independent control of the traditional winding machine and the front device. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creating any inventive labor.

[0018] Figure 1 Structure diagram of the three-dimensional torsion release deviceFigure 1 ; Figure 2 Structure diagram of three-dimensional torsion release device provided by the embodiment of the present application Figure 2 ; Figure 3 Top view of three-dimensional torsion release device provided by the embodiment of the present application Figure 4 Side view of three-dimensional torsion release device provided by the embodiment of the present application Figure 5 Structure diagram of lifting assembly adopted by the embodiment of the present application Figure 1 ; Figure 6 Structure diagram of lifting assembly adopted by the embodiment of the present application Figure 2 ; Figure 7 Front view of lifting assembly adopted by the embodiment of the present application Figure 8 Structure diagram of contact unit adopted by the embodiment of the present application Figure 9 Side view cross-sectional diagram of contact unit adopted by the embodiment of the present application Figure 10 Assembly diagram of lifting ring and connecting ring adopted by the embodiment of the present application Figure 11 Assembly cross-sectional diagram of lifting ring and connecting ring adopted by the embodiment of the present application Figure 12 Cross-sectional diagram of connecting ring adopted by the embodiment of the present application

[0019] Explanation of reference numerals: 1, base; 11, support frame; 12, driving member; 13, rotating screw; 14, guide rod; 15, matching plate 2, lifting assembly; 21, moving seat; 22, support frame; 221, limiting groove; 23, lifting rod; 24, lifting ring; 25, connecting ring; 251, inner ring; 252, outer ring; 253, rolling ring; 254, blocking ring; 26, rolling wheel type displacement sensor 3, contact unit; 31, shell; 32, first rotating shaft; 33, second rotating shaft DETAILED DESCRIPTION

[0020] In order to make the technical problems, technical solutions and beneficial effects of the present application more clearly understood, the present application will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0021] With reference to the drawings, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. The description of the at least one example embodiment is actually only illustrative, but not as any limitation on the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work, fall within the scope of the present application.

[0022] It should be noted that the terms "length", "width", "height", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application. The orientation terms "inner" and "outer" refer to the inner and outer of the profile of each component itself.

[0023] It should also be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing", "setting" and the like should be broadly understood, for example, can be fixedly connected, or can be detachably connected, or can be integrated; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium; can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0024] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In addition, the meaning of "multiple", "several" is two or more, unless otherwise explicitly specified and limited.

[0025] Please refer to Figures 1 to 12The three-dimensional torsion releasing device provided by the application is described as follows. The three-dimensional torsion releasing device is arranged in front of a winding machine and comprises a base 1, a lifting assembly 2 and a contact unit 3. The lifting assembly 2 is slidably arranged on the base 1 along the left-right direction, and the lifting assembly 2 has a lifting ring 24 moving along the up-down direction, and a connecting ring 25 is rotatably arranged in the lifting ring 24. The contact unit 3 is connected to the connecting ring 25, and the contact unit 3 has two first rotating shafts 32 and two second rotating shafts 33. The rotating shafts of the two first rotating shafts 32 and the rotating shafts of the two second rotating shafts 33 are perpendicular to each other and are perpendicular to the front-rear direction, respectively. The two first rotating shafts 32 and the two second rotating shafts 33 enclose a contact channel, and a carbon fiber core is arranged in the contact channel and is in rolling fit with the two first rotating shafts 32 and the two second rotating shafts 33, respectively.

[0026] It should be noted that the winding direction of the carbon fiber core is parallel to the front-rear direction, and the lifting assembly 2 moves along the left-right direction.

[0027] It should be noted that the two first rotating shafts 32 have opposite directions of rotation, and the two second rotating shafts 33 have opposite directions of rotation.

[0028] It should be noted that the carbon fiber core in the application is a bundled carbon fiber composite core.

[0029] It should be noted that the three-dimensional tension adjustment and stress release of the carbon fiber core during winding are achieved by the cooperation of multiple assemblies in the embodiment. The base 1 provides stable support as a whole, the lifting assembly 2 can slide along the direction perpendicular to the winding direction, and the lifting ring 24 contained therein can drive the contact unit 3 to move in the up-down direction, and the connecting ring 25 in the lifting ring 24 can freely rotate to provide the contact unit 3 with the freedom of axial rotation. The two first rotating shafts 32 and the two second rotating shafts 33 in the contact unit 3 are distributed in the shape of a cross-shaped frame, and the contact channel formed by the two first rotating shafts 32 and the two second rotating shafts 33 allows the carbon fiber core to rollingly contact each rotating shaft when passing through. When the carbon fiber core generates radial stress due to changes in winding diameter, equipment vibration, etc. or generates circumferential torsional stress due to deviation of the guide wire during winding, the connecting ring 25 can drive the contact unit 3 to rotate around the axis as a whole, and the left-right sliding of the lifting assembly 2 and the up-down movement of the lifting ring 24 can respectively adapt to the left-right deviation and the up-down position adjustment of the carbon fiber core, and the rolling support of the cross-shaped frame-shaped rotating shafts can synchronously release the radial and circumferential stress of the carbon fiber core through mechanical movement, thereby avoiding self-twisting caused by stress.

[0030] Compared with the prior art, the three-dimensional torsion releasing device provided by the embodiment realizes three-dimensional tension coordinated adjustment and stress release of the carbon fiber core in the radial direction, the circumferential direction and the axial direction through the left and right movement of the lifting assembly 2, the up and down movement of the lifting cylinder, the axial rotary movement of the connecting ring 25, and the well-shaped frame contact unit 3, and perfectly adapts to the iterative bundled carbon fiber composite core winding processing with high flexibility and high reliability; through the rolling fit of the contact channel and the multidirectional movement compensation, the torsional stress and the local tension peak generated during the winding process of the carbon fiber core can be eliminated in real time, and the self-twisting generated during the winding and the large length winding fracture accident can be avoided. At the same time, the device realizes stress release through a mechanical structure, replaces the traditional spring structure which is easy to fail, avoids the problem of tension effect attenuation after long-term use of the spring, prolongs the service life of the equipment, and reduces the maintenance frequency. The rolling fit of the contact unit 3 and the carbon fiber core instead of sliding friction can reduce the wear on the surface of the carbon fiber core, protect the mechanical properties of the carbon fiber core from being damaged, and finally significantly improve the winding quality of the carbon fiber core.

[0031] In some embodiments, referring to Figures 1 to 4 The base 1 includes two support frames 11, a driving member 12, and a rotating screw 13. The two support frames 11 are arranged in the left-right direction. The driving member 12 is arranged outside one of the support frames 11. The driving member 12 has a rotating output end, and the rotating axis of the rotating output end is parallel to the left-right direction. The rotating screw 13 is rotatably connected to the two support frames 11 at both ends, and one end is connected to the rotating output end. The rotating screw 13 has external threads on the outer periphery. The lifting assembly 2 has internal threaded holes corresponding to the external threads, and the internal threaded holes are threadedly connected to the external threads.

[0032] In specific implementation, the two support frames 11 are vertical support plates to provide stable support.

[0033] Optionally, the driving member 12 is a servo motor, and a rotary motor can also be selected.

[0034] The base 1 provided by the embodiment has stable structure, the two spaced support frames 11 provide stable two-end support for the rotating screw 13, ensure the straightness of the lifting assembly 2 when sliding, and further ensure the stable support position of the contact unit 3 on the carbon fiber core, thereby reducing the tension fluctuation caused by the shaking of the assembly. The driving member 12 drives the rotating screw 13 to rotate through the rotating output end, and converts the rotating motion into the linear motion of the lifting assembly 2 along the vertical direction of the winding direction by the thread cooperation between the screw and the lifting assembly 2. Not only the position precision control of millimeter level or even micrometer level can be realized, but also the sliding speed and direction of the lifting assembly 2 can be flexibly adjusted by controlling the rotating speed and direction of the driving member 12, so as to adapt to the winding requirements of carbon fiber cores of different specifications, and the material changing efficiency is greatly improved. When the driving member 12 stops working, the lifting assembly 2 can stably stay at the set position and will not be deviated due to the vibration of the equipment or the tension reaction force of the carbon fiber core, thereby further ensuring the stability of the tension adjustment during the winding process.

[0035] In some embodiments, referring to Figures 1 to 3 , the base 1 further comprises a guide rod 14, both ends of the guide rod 14 are rotationally connected to the two support frames 11 respectively, the axial direction of the guide rod 14 is parallel to the axial direction of the rotating screw 13, and the guide rod 14 slides through the lifting assembly 2. The guide rod 14 and the rotating screw 13 form a double-shaft guide structure, which can constrain the sliding track of the lifting assembly 2 and strictly limit it to linear motion along the axial direction, thereby eliminating the deflection phenomenon and ensuring that the contact unit 3 always maintains stable rolling cooperation with the carbon fiber core, thereby maintaining the uniformity of the tension. At the same time, the guide rod 14 disperses the stress of the lifting assembly 2, avoids that the rotating screw 13 bears all the radial loads alone, reduces the wear and deformation probability of the screw, prolongs the service life of the screw and the driving member 12, and reduces the equipment maintenance cost.

[0036] In some embodiments, referring to Figures 5 to 7 , the lifting assembly 2 further comprises a moving seat 21, a support frame 22 and a lifting rod 23. The moving seat 21 is slidably arranged on the base 1 along the left-right direction; the support frame 22 is vertically arranged on the top of the moving seat 21, and the central axis of the support frame 22 is parallel to the front-rear direction; the lifting rod 23 is arranged through the top of the support frame 22 in a liftable manner, the bottom end of the lifting rod 23 extends into the inner frame of the support frame 22 and is rotationally connected to the lifting ring 24.

[0037] It should be noted that the support frame 22 is a square frame, and the central axis of the support frame 22 is parallel to the front-rear direction. The carbon fiber core passes through the inside of the support frame 22 and then enters the winding machine for operation.

[0038] In specific implementation, the structure greatly improves the movement flexibility through independent support of the support frame 22 and rotational connection of the lifting rod 23. In addition, the inner frame of the support frame 22 can limit the movement range of the lifting ring 24, preventing the lifting ring 24 from moving excessively due to accidental force, and protecting the contact unit 3 and the rotating shaft from being damaged. At the same time, when the lifting rod 23 or the contact unit 3 needs to be repaired, the relevant parts of the support frame 22 can be separately disassembled without the need to disassemble the device as a whole, thereby reducing the maintenance difficulty and downtime and improving the overall operation efficiency of the equipment.

[0039] The lifting assembly 2 provided in the embodiment realizes independent and stable control of the left and right sliding and the up and down lifting of the contact unit 3 through the layered structure design, and improves the movement flexibility of the contact unit 3. The moving seat 21 ensures the sliding stability of the lifting assembly 2 as a whole along the direction perpendicular to the winding direction in cooperation with the base 1. The support frame 22 provides rigid support for the lifting rod 23, avoiding the bending of the lifting rod 23 when driving the lifting ring 24 and the contact unit 3 to lift, ensuring that the central axis of the lifting ring 24 always keeps consistent with the winding direction of the carbon fiber core, and preventing the contact unit 3 from deviating to cause uneven force on the carbon fiber core. The lifting rod 23 is arranged on the top of the support frame 22 and rotationally connected with the lifting ring 24, so that the lifting ring 24 can still rotate freely while moving up and down along the lifting rod 23 to realize axial rotary stress release, adapting to the demand of multi-dimensional tension adjustment during winding of the carbon fiber core.

[0040] In some embodiments, referring to Figures 5 to 7 , the lifting rod 23 is a screw rod, the top of the support frame 22 is provided with a screw hole corresponding to the lifting rod 23, the screw hole is threadedly matched with the lifting rod 23, and the bottom end of the lifting rod 23 is rotationally connected with the lifting ring 24. The support frame 22 is formed with a vertical limiting groove 221 corresponding to the lifting ring 24, and the limiting groove 221 abuts against the lifting ring 24 to limit the rotation of the lifting ring 24 around the vertical direction.

[0041] In specific implementation, the top of the lifting rod 23 is provided with a rotating handle.

[0042] In the embodiment, the lifting rod 23 is designed as a screw rod and threadedly matched with the screw hole of the support frame 22, and slow lifting of the lifting ring 24 can be realized by rotating the lifting rod 23, improving the adjustment accuracy and ensuring the tension stability during winding of the carbon fiber core. The vertical limiting groove 221 on the support frame 22 abuts against the lifting ring 24, which can strictly limit the rotation of the lifting ring 24 around the vertical direction, and only keep the rotary freedom of the lifting ring 24 around the winding direction, preventing the carbon fiber core from being broken or damaged due to excessive force on the local part caused by deflection of the rotating shaft. For the high-brittle carbon fiber core, the material loss rate during winding can be greatly reduced.

[0043] In some embodiments, referring to Figure 1 ,Figure 2 And Figure 5 The bottom of the mobile seat 21 is also connected with a roller displacement sensor 26; the bottom of the base 1 is provided with a matching plate 15, the extension direction of the matching plate 15 is parallel to the sliding direction of the lifting assembly 2, and the matching plate 15 is in rolling cooperation with the roller displacement sensor 26.

[0044] It should be noted that the roller displacement sensor 26 can convert the linear sliding displacement of the lifting assembly 2 into an electrical signal through the rolling contact with the matching plate 15, and transmit the signal to the control system of the winding machine in real time. The control system can accurately grasp the current position of the lifting assembly 2 according to the signal, and compare the preset position parameters. If there is a deviation, the driving mechanism of the base 1 will immediately drive the rotating screw 13 to realize automatic correction of displacement.

[0045] The cooperation between the roller displacement sensor 26 and the matching plate 15 provided in the embodiment provides a real-time and accurate feedback signal for the sliding displacement of the lifting assembly 2, so that the device is upgraded from passive adjustment to active closed-loop control, avoiding the traditional hysteresis and subjectivity. The roller displacement sensor 26 adopts rolling cooperation, which has smaller wear and longer service life compared with sliding sensors, and can adapt to the rapid sliding of the lifting assembly 2, ensuring that the displacement signal can still be accurately collected during high-speed winding. In addition, the data collected by the displacement sensor can be stored and analyzed by the system. By statistically analyzing the optimal position parameters of the lifting assembly 2 under different carbon fiber core specifications, a database is formed, and the parameters can be directly called during subsequent material replacement, further improving the consistency of material replacement efficiency and winding quality.

[0046] In some embodiments, referring to Figure 8 And Figure 9 The contact unit 3 further comprises a shell 31 connected to the front side of the connecting ring 25, two first rotating shafts 32 and two second rotating shafts 33 are respectively connected to the shell 31, the two first rotating shafts 32 are located on the front side of the two second rotating shafts 33, and the axial direction of the first rotating shaft 32 is perpendicular to the axial direction of the second rotating shaft 33; the two first rotating shafts 32 are arranged at intervals, the two second rotating shafts 33 are arranged at intervals, the carbon fiber core passes between the two first rotating shafts 32 and the two second rotating shafts 33, and enters the winding machine for winding.

[0047] The housing 31 of the contact unit 3 of the embodiment is designed in a front-rear layered and vertically distributed manner with the rotating shafts, which not only strengthens the structural stability, but also optimizes the stress state of the carbon fiber core. The housing 31 integrates the two first rotating shafts 32 and the two second rotating shafts 33 into one body, thereby providing a stable mounting and supporting foundation for the rotating shafts, ensuring that the distribution structure of the well-shaped frame does not deform, maintaining the stable shape of the contact channel, and further ensuring the uniform contact between the carbon fiber core and the rotating shafts. The two first rotating shafts 32 are located on the front side of the second rotating shafts 33 and are axially perpendicular, so that when the carbon fiber core passes through the contact channel, it first passes through the first rotating shafts 32 on the front side for preliminary guidance and tension buffering, and then passes through the second rotating shafts 33 on the back side for secondary positioning and stress release, forming a step-by-step adaptive effect and avoiding the tension impact of the carbon fiber core when suddenly entering the contact channel. In addition, the rotating shafts arranged at intervals allow the carbon fiber core to roll with the rotating shafts, which can greatly reduce the frictional resistance and reduce the wear on the surface of the carbon fiber core. The first rotating shafts 32 can adapt to the up-down directional position deviation of the carbon fiber core, and the second rotating shafts 33 can adapt to the left-right directional deviation, cooperating with the axial rotation of the connecting ring 25 to form a full-range stress release system in the up-down, left-right, and axial directions, thereby improving the yield rate of the carbon fiber core winding and the adaptability to high-end applications.

[0048] In some embodiments, referring to Figures 10 to 12 The connecting ring 25 includes an inner ring 251, an outer ring 252, and a rolling ring 253. The inner ring 251 is connected to the front side of the housing 31, and the outer peripheral surface of the inner ring 251 is provided with a sliding ring groove. The outer ring 252 is slidingly arranged in the sliding ring groove, and the outer peripheral surface of the outer ring 252 abuts against the inner peripheral surface of the lifting cylinder. The rolling ring 253 is arranged between the side surface of the outer ring 252 and the groove wall of the sliding ring groove, and a plurality of rolling balls are rotatably arranged on the rolling ring 253, which are in rolling contact with the groove wall of the sliding ring groove and the outer ring 252, respectively.

[0049] In specific implementation, the rolling balls of the rolling ring 253 are made of wear-resistant materials, such as bearing steel, which has high carrying capacity and can stably bear the interaction force between the contact unit 3 and the carbon fiber core, thereby avoiding deformation of the connecting ring 25 due to excessive stress.

[0050] The connecting ring 25 of the embodiment adopts a split rolling structure, greatly improving the flexibility and smoothness of axial rotation. The inner ring 251 provides a sliding track for the outer ring 252 through the sliding ring groove, and the outer ring 252 is in abutment with the lifting cylinder to realize connection with the lifting assembly 2. The rolling ring 253 and its rolling balls convert the sliding friction between the outer ring 252 and the inner ring 251 into rolling friction of the rolling balls, greatly reducing the resistance when the connecting ring 25 rotates, ensuring that when the carbon fiber core generates a small radial or circumferential stress, the connecting ring 25 can immediately drive the contact unit 3 to rotate, timely releasing the stress, avoiding the breakage of the wire or the interlayer slip caused by stress concentration. At the same time, the cooperation of the sliding ring groove and the outer ring 252 can limit the radial displacement of the connecting ring 25, preventing eccentric shaking during rotation, ensuring that the center axis of the contact unit 3 is always aligned with the carbon fiber core winding direction, maintaining the uniformity of tension. When the rolling ring 253 or the rolling balls are worn out due to long-term use, the connecting ring 25 does not need to be replaced as a whole, and only the rolling ring 253 needs to be replaced by disassembling the outer ring 252, reducing maintenance cost and downtime. Reducing the waste caused by the jamming of the connecting ring 25, further ensuring the consistency of the carbon fiber core winding quality.

[0051] In some embodiments, referring to Figure 11 and Figure 12 , the front side of the outer ring 252 is integrally provided with a stop ring 254, the front end of the stop ring 254 extends out of the front end of the inner ring 251; the rolling ring 253 is provided with two and located on both sides of the outer ring 252, one of the inner and outer sides of one of the rolling rings 253 abuts against the stop ring 254 and the inner ring 251, and the other rolling ring 253 abuts against the lifting cylinder and the inner ring 251.

[0052] In specific implementation, the stop ring 254 and the outer ring 252 are integrally forged and formed, and the design that the stop ring 254 extends out of the front end of the inner ring 251 can form a protective barrier between the connecting ring 25 and the shell 31, preventing dust and impurities in the workshop environment from entering the rolling gap of the connecting ring 25, avoiding the influence of the rolling balls due to impurities on the rotation flexibility, and further improving the anti-interference ability of the connecting ring 25.

[0053] The further refinement of the connecting ring 25 is provided with the stop ring 254 and the double rolling ring 253, which provides the connecting ring 25 with bidirectional axial positioning and double rolling support. The stop ring 254 on the front side of the outer ring 252 is integrally formed, which not only has high structural strength, but also can axially limit one of the rolling rings 253 from the front end, and cooperate with the lifting cylinder on the rear side of the other rolling ring 253 to form the bidirectional constraint of the front stop ring 254 and the rear lifting cylinder, strictly limit the axial movement distance of the connecting ring 25, ensure that the contact unit 3 always cooperates with the carbon fiber core in a stable position, and maintain uniform tension. The two rolling rings 253 are located on both sides of the outer ring 252 to form a symmetrical double rolling support structure, which uniformly disperses the stress of the rotating connecting ring 25 to both sides of the rolling ring 253, avoiding the accelerated wear or damage of the single rolling ring 253 due to excessive unilateral stress, and prolonging the service life of the rolling ring 253. It can effectively reduce the quality fluctuation of the material caused by the movement of the connecting ring 25.

[0054] Based on the same inventive concept, the application also provides a multi-strand bundled carbon fiber composite core cradle winding system, which comprises a cradle winding machine main body and a three-dimensional torsion release device according to any one of the above embodiments. The three-dimensional torsion release device is arranged on the front side of the cradle winding machine main body, and the carbon fiber core passes through the contact channel of the three-dimensional torsion release device. After the self-torsional stress is completely released, the carbon fiber core is moved to the cradle winding machine main body for winding.

[0055] Compared with the prior art, the three-dimensional torsion release device is arranged on the front side of the winding machine main body, so that the carbon fiber core first passes through the three-dimensional tension adjustment and stress release before entering the winding machine main body. The torsional stress and local tension peak generated in the process of guiding the bundled carbon fiber core are eliminated in advance, ensuring that the carbon fiber core entering the winding machine main body is in a low-stress and uniform tension state, greatly reducing the tension control pressure of the winding machine main body and improving the overall winding quality. At the same time, the automatic control characteristics of the three-dimensional torsion release device can be seamlessly connected with the control system of the cradle winding machine main body, realizing parameter linkage. When the winding machine main body detects that the winding diameter increases, a signal can be sent to the three-dimensional torsion release device to adjust the position of the lifting assembly 2 and the angle of the contact unit 3, ensuring stable tension throughout the process and avoiding the problem of parameter mismatch caused by independent control of the traditional winding machine and the front device. At the same time, manual intervention is reduced and production efficiency is improved.

[0056] In addition, the system has strong adaptability and can quickly adapt to different specifications of the bundled carbon fiber core by adjusting the parameters of the three-dimensional torsion release device without the need for large-scale modification of the winding machine main body, thereby reducing the cost of equipment upgrading.

[0057] The above only describes preferred embodiments of the present application and is not used to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A three-dimensional torque release device, disposed in front of a winding machine, characterized in that, include: Base (1); A lifting assembly (2) is slidably mounted on a base (1) in the left-right direction. The lifting assembly (2) has a lifting ring (24) that moves in the up-down direction. A connecting ring (25) is rotatably mounted inside the lifting ring (24). The left-right direction is perpendicular to the winding direction of the carbon fiber core. The contact unit (3) is connected to the connecting ring (25). The contact unit (3) has two first rotating shafts (32) and two second rotating shafts (33). The rotation axes of the two first rotating shafts (32) are perpendicular to each other and to the front and back directions, respectively. The two first rotating shafts (32) and the two second rotating shafts (33) form a contact channel. The carbon fiber core passes through the contact channel and rolls with the two first rotating shafts (32) and the two second rotating shafts (33), respectively.

2. The three-dimensional torque release device as described in claim 1, characterized in that, The base (1) includes: Two support frames (11) are spaced apart along the left and right directions; A drive member (12) is disposed on the outside of one of the support frames (11), the drive member (12) having a rotation output end, the rotation axis of the rotation output end being parallel to the left-right direction; and The rotating screw (13) is rotatably connected to the two support frames (11) at both ends, and one end is connected to the rotating output end. The outer circumference of the rotating screw (13) has an external thread, and the lifting assembly (2) has an internal thread hole corresponding to the external thread. The internal thread hole is threaded with the external thread.

3. The three-dimensional torque release device as described in claim 2, characterized in that, The base (1) also includes a guide rod (14), the two ends of which are rotatably connected to the two support frames (11), the axial direction of the guide rod (14) is parallel to the axial direction of the rotating screw (13), and the guide rod (14) slides through the lifting assembly (2).

4. The three-dimensional torque release device as described in claim 1, characterized in that, The lifting assembly (2) also includes: The movable seat (21) is slidably mounted on the base (1) in the left and right directions; A support frame (22) is vertically disposed on top of the movable seat (21), and the central axis of the support frame (22) is parallel to the front-back direction; and The lifting rod (23) is vertically mounted on the top of the support frame (22). The bottom end of the lifting rod (23) extends into the inner frame of the support frame (22) and is rotatably connected to the lifting ring (24).

5. The three-dimensional torque release device as described in claim 4, characterized in that, The lifting rod (23) is a screw rod, and the top of the support frame (22) is provided with a screw hole corresponding to the lifting rod (23). The screw hole is threadedly engaged with the lifting rod (23), and the bottom end of the lifting rod (23) is rotatably connected to the lifting ring (24). The support frame (22) has a vertically extending limiting groove (221) corresponding to the lifting ring (24). The limiting groove (221) abuts against the lifting ring (24) to restrict the lifting ring (24) from rotating in the vertical direction.

6. The three-dimensional torque release device as described in claim 4, characterized in that, The bottom of the movable seat (21) is also connected to a roller displacement sensor (26); The base (1) has a mating plate (15) at its bottom. The extension direction of the mating plate (15) is parallel to the sliding direction of the lifting assembly (2). The mating plate (15) is in rolling contact with the roller displacement sensor (26).

7. The three-dimensional torque release device as described in claim 1, characterized in that, The contact unit (3) further includes a housing (31), which is connected to the front side of the connecting ring (25). Two first rotating shafts (32) and two second rotating shafts (33) are rotatably connected to the housing (31). The two first rotating shafts (32) are located in front of the two second rotating shafts (33), and the axial direction of the first rotating shafts (32) is perpendicular to the axial direction of the second rotating shafts (33). The two first rotating shafts (32) are spaced apart, and the two second rotating shafts (33) are spaced apart. The carbon fiber core passes through the space between the two first rotating shafts (32) and the space between the two second rotating shafts (33), and enters the winding machine for winding.

8. The three-dimensional torque release device as described in claim 7, characterized in that, The connecting ring (25) includes: The inner ring (251) is connected to the outer shell (31) on the front side, and a sliding ring groove is provided on the outer circumferential surface of the inner ring (251); An outer ring (252) is slidably disposed within the sliding ring groove, and the outer circumferential surface of the outer ring (252) abuts against the inner circumferential surface of the lifting cylinder; and A rolling ring (253) is disposed between the side of the outer ring (252) and the groove wall of the sliding ring groove. A plurality of balls are rotatably disposed on the rolling ring (253), and the plurality of balls respectively roll in cooperation with the groove wall of the sliding ring groove and the outer ring (252).

9. The three-dimensional torque release device as described in claim 8, characterized in that, The outer ring (252) is integrally provided with a retaining ring (254) on the front side, and the front end of the retaining ring (254) extends out of the front end of the inner ring (251); Two rolling rings (253) are provided and are located on both sides of the outer ring (252). The inner and outer sides of one of the rolling rings (253) abut against the retaining ring (254) and the inner ring (251) respectively, and the inner and outer sides of the other rolling ring (253) abut against the lifting cylinder and the inner ring (251) respectively.

10. A multi-strand bundled carbon fiber composite core cradle winding system, characterized in that, include: Main body of the cradle winding machine; as well as The three-dimensional torque release device as described in any one of claims 1-9 is located on the front side of the cradle winding machine body. The carbon fiber core passes through the contact channel of the three-dimensional torque release device and, after its own torsional stress is completely released, moves to the cradle winding machine body for winding.

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