Multi-strand carbon fiber composite core parallel bundling production line

Abstract

The application provides a multi-strand carbon fiber composite core parallel bundle production line, which comprises, in sequence along the leading direction of the mandrel, a mandrel leading unit, a preforming frame, a weaving unit, a wrapping unit, a traction unit and a winding unit; the mandrel leading unit is provided with a plurality of rotating drums and a plurality of compression roller assemblies, a single-strand mandrel is arranged around each rotating drum, the compression roller assembly is provided with a one-way channel, and the mandrel on the rotating drum passes through the one-way channel and moves to the preforming frame; the preforming frame is provided with a first guide hole and a plurality of second guide holes, and the plurality of second guide holes are arranged concentrically around the first guide hole. The multi-strand carbon fiber composite core parallel bundle production line provided by the application is designed in sequence through leading, preforming, weaving, wrapping, traction and finally winding, so that a complete processing link for the multi-strand carbon fiber composite core parallel bundle is formed, and the professional and continuous production of the parallel bundle core is realized from the equipment level.

Description

Technical Field

[0001] This application belongs to the field of composite conductor preparation technology, specifically relating to a parallel bundled production line for multi-strand carbon fiber composite cores. Background Technology

[0002] Carbon fiber composite core conductors are a new type of conductor for overhead transmission lines. They are made by concentric stranding an outer conductive material and an inner composite reinforcing core. By replacing the traditional metal steel core with a composite material core, they achieve a combination of lightweight, high strength, low sag, and high conductivity.

[0003] Parallel bundled carbon fiber composite core is a high-strength composite core conductor with a small winding diameter and good toughness. The inner composite reinforcing core is made of multiple parallel core rods bundled together. However, existing production lines are only suitable for processing and winding single core rod conductors or stranded core rod conductors. The production line for single core rods only needs to pultrude and wind the core rods, without any subsequent processing. The production line for stranded core rods can only wind multiple core rods into a spiral structure. Using it for bundled core rods will cause the parallel core rods to misalign, resulting in a chaotic structure, or even core breakage, making it difficult to wind parallel bundled cores. There is currently no production line specifically suitable for this purpose. Summary of the Invention

[0004] This application provides a parallel bundling production line for multi-strand carbon fiber composite cores, aiming to solve the technical problem that existing multi-strand stranding production lines are not suitable for carbon fiber composite parallel bundling cores, resulting in manufacturing and winding difficulties.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows: A parallel bundled production line for multi-strand carbon fiber composite cores is provided, comprising a core rod lead-out unit, a preforming frame, a braiding unit, a wrapping unit, a traction unit, and a winding unit that are sequentially connected along the processing flow. The mandrel lead-out unit has multiple rotating drums and multiple pressure roller assemblies. The rotation axis of the rotating drum is perpendicular to the mandrel lead-out direction. Each rotating drum is wound with a single mandrel. The rotating drum and the pressure roller assembly correspond one-to-one. The pressure roller assembly has a one-way channel. The single mandrel on the rotating drum passes through the one-way channel and moves to the preforming frame. The preform frame has a first guide hole and a plurality of second guide holes. The plurality of second guide holes are arranged concentrically around the first guide hole, and the first guide hole and the plurality of second guide holes respectively guide a mandrel through.

[0006] In one possible implementation, the mandrel lead-out unit further includes a mounting frame, the top of which is provided with multiple fixed seats, one end of the rotating drum rotatably passes through the fixed seats and is connected to a magnetic damper; Multiple rotating drums are respectively rotatably disposed on the top two sides of the mounting frame, and the multiple rotating drums are staggered along the mandrel lead-out direction, with multiple pressure roller assemblies and multiple rotating drums on the same side arranged alternately.

[0007] In one possible implementation, the pressure roller assembly includes: A support frame, connected to the mounting frame, is located between two adjacent rotating cylinders on the same side; An upper extrusion roller is rotatably connected to the support frame, and the rotation axis of the upper extrusion roller is perpendicular to the mandrel lead-out direction; and The lower extrusion roller is rotatably connected to the support frame. The rotation axis of the lower extrusion roller is perpendicular to the mandrel lead-out direction, and the rotation directions of the lower extrusion roller and the upper extrusion roller are opposite.

[0008] In one possible implementation, the braiding unit includes a binding machine for binding multiple mandrels together.

[0009] In one possible implementation, the wrapping unit includes a first wrapping component and a second wrapping component, wherein the first wrapping component and the second wrapping component respectively wrap around the outer periphery of the mandrel; The first wrapping component and the second wrapping component are arranged at intervals along the mandrel lead-out direction, and the wrapping directions are opposite.

[0010] In one possible implementation, the first wrapping component includes: The base has a wrapping hole extending along the mandrel's lead-out direction. The base has a rotatable frame with its rotation axis parallel to the mandrel's lead-out direction. The wrapping hole is located at the center of rotation of the frame. The mandrel enters the wrapping hole and is wrapped with adhesive tape within it. A recycling assembly is disposed on the outer periphery of the rotating frame. The recycling assembly has a tape reel for winding adhesive tape and a recycling reel for recycling release paper from the adhesive tape.

[0011] In one possible implementation, the recycling component further includes: A frame is mounted on a rotating frame on a wire production line. The tape reel is rotatably mounted on the frame. A recycling reel is rotatably mounted on the side of the frame connected to the tape reel, and the rotation direction of the recycling reel is parallel to the rotation direction of the tape reel. A synchronous belt, with the tape reel and the recycling reel respectively fitted at both ends, so that the release paper peeled off from the tape reel is wound onto the recycling reel by the synchronous rotation of the tape reel and the recycling reel.

[0012] In one possible implementation, the traction unit includes: The traction machine pulls multiple parallel mandrels to move along the mandrel lead-out direction; and A meter counter is located at the front end of the traction machine and is used to measure the length of the mandrel.

[0013] In one possible implementation, the winding unit includes a cradle winder having an I-beam for winding the wrapped mandrel.

[0014] In one possible implementation, the winding unit further includes a torque release component, the torque release component comprising: Mounting base; A lifting assembly is slidably mounted on a mounting base in the left-right direction. The lifting assembly has a lifting ring that moves in the up-down direction, and a connecting ring rotatably disposed within the lifting ring. The left-right direction is perpendicular to the mandrel's lead-out direction. A contact unit is connected to the connecting ring. The contact unit has two first rotating shafts and two second rotating shafts. The rotation axes of the two first rotating shafts are perpendicular to each other and to the direction of the mandrel lead-out, respectively. The two first rotating shafts and the two second rotating shafts enclose a contact channel. The carbon fiber composite core passes through the contact channel and rolls with the two first rotating shafts and the two second rotating shafts, respectively.

[0015] The parallel bundled production line for multi-strand carbon fiber composite cores provided in this application, compared with existing technologies, forms a complete processing link for parallel bundled multi-strand carbon fiber composite cores through a sequential design of mandrel lead-out, bundle preforming, weaving, wrapping, traction, and final winding. This enables specialized and continuous production of parallel bundled cores from the equipment level. The first and second guide holes of the bundle preforming frame are arranged in a ring-shaped fixed pattern, forcing the mandrels to remain parallel from the source. The unidirectional channel in the mandrel lead-out stage works in conjunction with the pressure roller assembly to avoid springback and layer disorder caused by tension changes during mandrel lead-out. The shaping process of the weaving unit and wrapping unit further integrates and constrains the parallel mandrels into a whole. The multi-stage collaboration ensures that the mandrels always remain parallel, greatly improving the structural stability of the parallel bundled cores. The production line units are connected sequentially, and continuous production can be achieved without frequent manual intervention from mandrel lead-out to winding. The multiple rotating drums and pressure roller assemblies of the mandrel lead-out unit can be flexibly adjusted according to the mandrel specifications. The number and diameter of the guide holes of the preforming frame can also be adapted as needed. Parallel bundled cores with different numbers of strands and different diameters can be processed without replacing the entire set of equipment, which improves the applicability of the equipment and reduces the production input cost of enterprises for multi-specification products. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A schematic diagram of the main structure of a parallel bundled production line for multi-strand carbon fiber composite cores provided in an embodiment of this application; Figure 2 This is a front view of the mandrel lead-out unit used in an embodiment of this application; Figure 3 This is a schematic diagram of the mandrel lead-out unit used in an embodiment of this application; Figure 4 This is a schematic diagram of the preforming frame used in one embodiment of this application; Figure 5 This is a schematic diagram of the structure of a braided unit used in an embodiment of this application; Figure 6 This is a schematic diagram of the structure of the traction unit used in an embodiment of this application; Figure 7 This is a schematic diagram of the structure of the wrapping unit used in an embodiment of this application; Figure 8 This is a schematic diagram of the structure of a recycling component used in an embodiment of this application. Figure 1 ; Figure 9 This is a schematic diagram of the structure of a recycling component used in an embodiment of this application. Figure 2 ; Figure 10 This is a schematic diagram of the cradle winding machine used in one embodiment of this application; Figure 11 This is a schematic diagram of the structure of a winding unit used in another embodiment of this application; Figure 12 This is a schematic diagram of the torque release assembly used in another embodiment of this application; Figure 13 This is a schematic diagram of the contact unit used in another embodiment of this application; Figure 14 This is a cross-sectional view of the contact unit used in another embodiment of this application; Figure 15 This is a schematic diagram of the assembly of the contact unit and lifting assembly used in another embodiment of this application. Figure 1 ; Figure 16 This is a schematic diagram of the assembly of the contact unit and lifting assembly used in another embodiment of this application. Figure 2 .

[0018] Explanation of reference numerals in the attached figures: 1. Mandrel lead-out unit; 11. Mounting frame; 12. Rotary drum; 13. Pressure roller assembly; 131. Support frame; 132. Upper extrusion roller; 133. Lower extrusion roller; 2. Preformed frame; 21. First guide hole; 22. Second guide hole; 3. Braided unit; 4. Wrapping unit; 41. First wrapping assembly; 411. Base; 4111. Rotating frame; 412. Recycling assembly; 4121. Frame; 4122. Synchronous belt; 4123. Tape reel; 4124. Recycling reel; 4125. First turntable; 4126. Second turntable; 4127. First guide rod; 4128. Second guide rod; 42. Second wrapping component; 5. Traction unit; 51. Traction machine; 52. Meter counter; 6. Rewinding unit; 61. Cradle winding machine; 611. I-beam reel; 62. Torque release assembly; 621. Mounting base; 6211. Bracket; 6212. Drive component; 6213. Rotating screw; 6214. Guide rod; 622. Lifting assembly; 6221. Lifting ring; 6222. Connecting ring; 6223. Moving base; 6224. Support frame; 6225. Lifting rod; 623, Contact unit; 6231, First rotating shaft; 6232, Second rotating shaft; 6233, Housing. Detailed Implementation

[0019] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0020] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. The following description of at least one exemplary embodiment is actually illustrative only and is in no way intended to limit this application or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0021] It should be noted that the terms "length," "width," "height," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "head," and "tail," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the application. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0022] It should also be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "linking," "fixing," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Additionally, "multiple" and "several" mean two or more, unless otherwise explicitly specified.

[0024] Currently, composite reinforced cores generally use single mandrels or stranded mandrels. Single mandrels are formed directly after being pultruded by a stranding machine. However, single mandrels have high hardness and large bending diameter, making them difficult to install and prone to breakage at small angles during operation. Stranded mandrels are stranded together by a stranding machine, so that multiple mandrels are spliced ​​together in a spiral shape. Although the bending diameter is reduced, stranded mandrels have low strength and a narrow range of applications.

[0025] Please refer to the following: Figures 1 to 16The parallel bundling production line for multi-strand carbon fiber composite cores provided in this application is described below. The parallel bundling production line for multi-strand carbon fiber composite cores includes a mandrel lead-out unit 1, a preforming frame 2, a braiding unit 3, a wrapping unit 4, a traction unit 5, and a winding unit 6 connected sequentially along the processing flow. The mandrel lead-out unit 1 has multiple rotating drums 12 and multiple pressure roller assemblies 13. The rotation axis of the rotating drums 12 is perpendicular to the mandrel lead-out direction. Each rotating drum 12 is wound with a single mandrel. The rotating drums 12 and pressure roller assemblies 13 correspond one-to-one. The pressure roller assemblies 13 have unidirectional channels through which the single mandrels on the rotating drums 12 pass to the preforming frame 2. The preforming frame 2 has a first guide hole 21 and multiple second guide holes 22. The multiple second guide holes 22 are arranged concentrically around the first guide hole 21. The first guide hole 21 and the multiple second guide holes 22 respectively guide one mandrel through.

[0026] It should be noted that the composite core parallel bundle in this application refers to a composite core with multiple core rods parallel to each other, one core rod located in the center and the other core rods arranged around this core rod. Each core rod of this composite core is independently stressed and shares the tensile force, resulting in high compressive strength. In addition, each core rod has a small bending diameter, high flexibility, and is not easy to break. Even if one core rod breaks, the strength of the remaining core rods can still meet the normal operation requirements, which can improve the operational safety margin of overhead transmission lines.

[0027] It should be noted that multiple mandrels first extend from the mandrel lead-out unit 1 and enter the corresponding first guide hole 21 or second guide hole 22 on the preforming frame 2. After passing through the preforming frame 2, the multiple mandrels are parallel to each other. The mandrels continue to move and enter the braiding unit 3. At the braiding unit 3, the multiple mandrels are attached to each other to form a preform of the composite core. The preform enters the wrapping unit 4 and is wrapped with tape to form a bundled composite core. The wrapping tape increases the protection of the preform. After wrapping, the bundled composite core enters the traction unit 5. Through the tension traction of the traction unit 5, the mandrel enters the winding unit 6 for winding, completing the production and winding of the parallel bundled composite core.

[0028] It should be noted that the specific working steps of this embodiment are as follows: Mandrel lead-out stage: Each drum 12 is wound with a mandrel, and multiple drums 12 rotate synchronously to unwind. The rotation axis of the drum 12 is perpendicular to the mandrel lead-out direction to ensure that the mandrel is output in a straight line. Each mandrel passes through a unidirectional channel of a pressure roller assembly 13. The pressure roller assembly 13 performs preliminary guidance and tension fine adjustment on the mandrel through extrusion to avoid springback and layer disorder caused by tension changes during lead-out, and stably conveys the mandrel to the preforming frame 2.

[0029] Pre-forming positioning stage: After the mandrel enters the pre-forming frame 2, one mandrel passes through the first guide hole 21 in the center, and the other mandrels pass through the second guide holes 22 set around the first guide hole 21 respectively; through the fixed arrangement of the holes, all mandrels are forced to form a uniform distribution structure with one in the center and multiple around the periphery, and the axis of all mandrels is parallel to the lead-out direction, which avoids the mandrels from intersecting or spiraling, and achieves the initial positioning of parallel bundle.

[0030] Braiding and fixing stage: The pre-formed parallel mandrels enter the braiding unit 3, and the fixing machine of the braiding unit 3 binds multiple parallel mandrels into a whole through the braiding process.

[0031] Wrapping and protection stage: After solidification, the parallel bundled core enters the wrapping unit 4. The outer periphery of the core is wrapped with tape by the wrapping component to form physical protection, avoid wear on the core surface or the influence of the environment (moisture, dust), and further reinforce the parallel bundled structure.

[0032] Traction and conveying stage: Traction unit 5 starts and drives the parallel bundle core to move at a constant speed along the lead-out direction through traction force.

[0033] Winding and storage stage: The parallel bundled core after traction enters the winding unit 6. The winding unit 6 performs reverse twisting and winding of the core bar to finally form a neat packaged finished product.

[0034] Compared with existing technologies, the parallel bundled production line for multi-strand carbon fiber composite cores provided in this embodiment forms a complete processing link for parallel bundled multi-strand carbon fiber composite cores through a sequential design of lead-out, preforming, weaving, wrapping, traction, and final winding. This enables specialized and continuous production of parallel bundled cores at the equipment level. The first guide hole 21 and the second guide hole 22 of the preforming frame 2 are arranged in a ring-shaped fixed arrangement, forcing the core rods to remain parallel from the source. The unidirectional channel in the core rod lead-out stage cooperates with the pressure roller assembly 13 to avoid springback and layer disorder caused by tension changes during core rod lead-out. The fixing process of the weaving unit 3 and the wrapping unit 4 further integrates the parallel core rods into a whole. The multi-stage collaboration ensures that the core rods always remain parallel, greatly improving the structural stability of the parallel bundled cores. The production line units are connected sequentially, and continuous production can be achieved without frequent manual intervention from mandrel lead-out to winding. The multiple rotating drums 12 and pressure roller assembly 13 of the mandrel lead-out unit 1 can be flexibly adjusted according to the mandrel specifications. The number and diameter of the guide holes of the preforming frame 2 can also be adapted as needed. Parallel bundled cores with different numbers of strands and different diameters can be processed without replacing the entire set of equipment, thereby improving the applicability of the equipment and reducing the production input cost of multi-specification products for enterprises.

[0035] In some embodiments, see Figure 2 and Figure 3The mandrel lead-out unit 1 also includes a mounting frame 11. The top of the mounting frame 11 has multiple fixed seats. One end of the rotating drum 12 rotates through the fixed seats and is connected to a magnetic damper. Multiple rotating drums 12 are respectively rotatably positioned on both sides of the top of the mounting frame 11, and are staggered along the mandrel lead-out direction. Multiple pressure roller assemblies 13 and multiple rotating drums 12 on the same side are arranged alternately. The damper precisely controls the tension, preventing mandrel slack or tensile damage: the damper connected to one end of the rotating drum 12 can adjust the damping force to control the unwinding speed of the rotating drum 12, thereby stabilizing the tension during mandrel lead-out; preventing mandrel slack accumulation due to excessive rotation speed of the rotating drum 12, or excessive stretching of the mandrel due to excessive rotation speed, protecting the structural integrity of the mandrel and reducing mandrel deformation caused by tension fluctuations.

[0036] In practice, the mounting frame 11 is divided into left and right sides. One end of the rotating drum 12 on the left side of the mounting frame 11 extends through the fixed seat to install a damper, and the pressure roller assembly 13 on the right side is directly connected to the mounting frame 11. One end of the rotating drum 12 on the right side of the mounting frame 11 extends through the fixed seat and is connected to the pressure roller assembly 13 located on the left side. The specific installation method can be adjusted according to actual needs. Alternatively, neither damper can be connected, and the mounting frame 11 can be connected to the rotating drum 12 and the pressure roller assembly 13 respectively.

[0037] In this embodiment, multiple rotating drums 12 are staggered on both sides of the mounting frame 11 along the mandrel lead-out direction, and the pressure roller assembly 13 on the same side is alternately arranged with the rotating drum 12, so that the lead-out path of each mandrel is independent and does not cross. The mandrel led out by the left rotating drum 12 is conveyed along the left channel, and the mandrel led out by the right rotating drum 12 is conveyed along the right channel. The pressure roller assembly 13 further separates and guides the adjacent rotating drums 12, completely avoiding the entanglement of multiple mandrels in the lead-out stage, laying the foundation for the parallel positioning of subsequent preforming.

[0038] In some embodiments, see Figure 3 The pressure roller assembly 13 includes a support frame 131, an upper pressure roller 132, and a lower pressure roller 133. The support frame 131 is connected to the mounting frame 11 and is located between two adjacent rotating drums 12 on the same side. The upper pressure roller 132 is rotatably connected to the support frame 131, and the rotation axis of the upper pressure roller 132 is perpendicular to the mandrel lead-out direction. The lower pressure roller 133 is rotatably connected to the support frame 131, and the rotation axis of the lower pressure roller 133 is perpendicular to the mandrel lead-out direction. The rotation directions of the lower pressure roller 133 and the upper pressure roller 132 are opposite.

[0039] In this embodiment, the upper extrusion roller 132 and the lower extrusion roller 133 rotate in opposite directions. The clamping force generated by their reverse rotation stably confines the mandrel within the channel between the two rollers. Simultaneously, the unidirectional channel enclosed by the two rollers strictly restricts the mandrel's transport path, preventing lateral deviation and ensuring the mandrel enters the preforming frame 2 in a straight line. Furthermore, the upper and lower extrusion rollers 132 and 133 can only rotate in one direction, allowing the mandrel to move only in one direction and preventing reverse retraction, thus maintaining constant tension. The support frame 131 securely connects the upper and lower extrusion rollers 133 to the mounting frame 11, preventing positional shifts or loosening of the extrusion rollers during long-term rotation; reducing roller vibration; lowering the risk of surface scratches on the mandrel due to roller sway; and extending the service life of the extrusion rollers. The distance between the upper and lower extrusion rollers 132 and 133 can be finely adjusted according to the mandrel diameter, adapting to different mandrel specifications without replacing the extrusion rollers; thus improving the equipment's adaptability to processing parallel bundled cores of multiple specifications.

[0040] In some embodiments, see Figure 4 The braiding unit 3 includes a fixing machine, which is used to connect multiple mandrels together.

[0041] It should be noted that the fixing machine is a yarn braiding machine used to braid and bind multiple mandrels into a whole. The working principle and specific structure of the fixing machine are common knowledge in the field. The braiding unit 3 also includes multiple sets of rotating discs, spindles, yarn cylinders, tension control units, and bundling devices. The braiding process includes glass fiber winding or chemical fiber filament / yarn winding, and the specific implementation steps will not be described here.

[0042] In this embodiment, the fixing machine of the braiding unit 3 binds multiple independent parallel mandrels into a whole without changing the parallel state of the mandrels, ensuring that the mandrels always maintain a parallel bundled structure. Furthermore, the fixed parallel bundled core structure is stable, and when it enters the wrapping unit 4, it will not shift due to vibration or tension changes during transport. This ensures that the wrapping assembly can uniformly wrap the outer circumference of the mandrels, improving wrapping quality and efficiency, guaranteeing the continuity of the processing flow, and further ensuring the quality stability of the finished parallel bundled core.

[0043] In some embodiments, see Figure 7 The wrapping unit 4 includes a first wrapping component 41 and a second wrapping component 42, which respectively wrap the outer periphery of the mandrel. The first wrapping component 41 and the second wrapping component 42 are arranged at intervals along the mandrel lead-out direction and the wrapping directions are opposite.

[0044] In this embodiment, the first wrapping assembly 41 and the second wrapping assembly 42 are arranged at intervals along the mandrel lead-out direction, and their wrapping directions are opposite: the first assembly winds clockwise, and the second assembly winds counterclockwise. This allows the two protective layers to restrain each other, improving the adhesion between the protective layer and the mandrel surface, reducing gaps, effectively isolating the mandrel from external moisture and dust erosion, protecting the performance stability of the carbon fiber composite mandrel, and extending its service life. During the winding process, the spaced arrangement of the wrapping assemblies allows for secondary positioning of the mandrel. After the first wrapping, the mandrel structure is further stabilized. The second wrapping, when wound in the opposite direction, does not damage the parallelism of the mandrel; instead, the uniform winding force further restricts the lateral displacement of the mandrel, ensuring the quality of the finished product.

[0045] In specific implementation, the tape wrapped by the first wrapping component 41 and the second wrapping component 42 is a protective tape. It can be aluminum foil tape or insulating tape, as long as it can form a protective layer to protect the core rod. They will not be listed one by one here.

[0046] In some embodiments, see Figure 8 and Figure 9 The first wrapping assembly 41 includes a base 411 and a recycling assembly 412. The base 411 has a wrapping hole extending along the mandrel lead-out direction. The base 411 has a rotating frame 41114111 that can rotate on its own. The rotation axis of the rotating frame 4111 is parallel to the mandrel lead-out direction, and the rotation center of the rotating frame 4111 has a wrapping hole. The mandrel enters the wrapping hole and is wrapped with tape inside the wrapping hole. The recycling assembly 412 is located on the outer periphery of the rotating frame 4111. The recycling assembly 412 has a tape reel 4123 for wrapping tape and a recycling reel 4124 for recycling release paper from the tape.

[0047] It should be noted that the first wrapping component 41 and the second wrapping component 42 have the same structure.

[0048] The rotating frame 4111 provided in this embodiment achieves uniform wrapping by self-rotation, improving wrapping quality and efficiency. The rotating frame 4111 of the base 411 can rotate on its own. When the mandrel passes through the wrapping hole in the center of the rotating frame 4111, the rotating frame 4111 drives the tape to rotate synchronously, so that the tape is evenly wrapped around the outer circumference of the mandrel in a spiral shape. The tape reel 4123 of the recycling component 412 releases the tape. After the release paper is peeled off, it is directly wrapped on the recycling reel 4124, realizing automatic synchronous recycling of the release paper. No manual intervention is required, reducing operational errors and avoiding quality problems such as loose tape adhesion and separation of the mandrel and protective layer caused by release paper residue. At the same time, it improves the automation and continuity of the wrapping process.

[0049] It should be noted that the rotating frame 4111 and the base 411 are existing wrapping machine structures. One end of the rotating frame 4111 is equipped with a wrapping head. The wrapping head rotates to drive the tape to wrap around the mandrel. The working principle and specific structure of the wrapping head are existing technologies and are common knowledge, so they will not be described here.

[0050] In some embodiments, see Figure 8 and Figure 9 The recycling assembly 412 also includes a frame 4121 and a timing belt 4122. The frame 4121 is mounted on a rotating frame 4111 on the mandrel production line; the tape reel 4123 is rotatably mounted on the frame 4121; the recycling reel 4124 is rotatably mounted on the side of the frame 4121 connected to the tape reel 4123, and the rotation direction of the recycling reel 4124 is parallel to the rotation direction of the tape reel 4123; the tape reel 4123 and the recycling reel 4124 are respectively sleeved at both ends of the timing belt 4122, and the release paper peeled off from the tape reel 4123 is wound onto the recycling reel 4124 by the synchronous rotation of the tape reel 4123 and the recycling reel 4124.

[0051] It should be noted that when the tape is released from the tape reel 4123, the release liner separates from the tape and is wound around the recycling reel 4124. The tape without the release liner extends out and wraps around the mandrel. The synchronous belt 4122 ensures that the linear speeds of the two are consistent through transmission (during the transmission of the synchronous belt 4122, the edge linear speeds of the tape reel 4123 and the recycling reel 4124 are the same). As the tape is continuously released, the radius of the tape roll on the tape reel 4123 gradually decreases, while the radius of the release liner roll on the recycling reel 4124 gradually increases. The synchronous belt 4122 automatically adjusts the angular velocity of the two to maintain linear speed matching by detecting slippage, thus preventing the release liner from becoming loose and accumulating or breaking due to excessive stretching caused by speed mismatch.

[0052] It should be noted that the synchronous belt 4122 is a rubber belt, and its slippage tension is less than the tension of the release liner. The synchronous belt 4122 has a certain degree of elasticity, which can adapt to minor speed fluctuations in the belt reel 4123 and the recovery reel 4124 during rotation, ensuring synchronous transmission under normal operating conditions. When the release liner encounters abnormal resistance during recovery (such as knotting or edge jamming), because the slippage tension of the synchronous belt 4122 is less than the tension of the release liner, the synchronous belt 4122 will slip first, preventing the release liner from breaking due to excessive force, thus protecting the release liner, recovery reel 4124, belt reel 4123, and other components from damage. This design provides overload protection, reducing downtime and maintenance caused by release liner breakage, and lowering the risk of production interruption. At the same time, the rubber belt has lower cost and better wear resistance, extending the service life of the synchronous components and further reducing equipment maintenance costs.

[0053] The recycling component 412 provided in this embodiment operates stably. The synchronous belt 4122 is fitted onto the tape reel 4123 and the recycling reel 4124, ensuring that their rotational speeds are completely synchronized. The speed at which the tape reel 4123 releases the tape is precisely matched with the speed at which the recycling reel 4124 recycles the release paper, preventing the release paper from breaking or loosening due to speed differences and ensuring a stable release paper recycling process. The frame 4121 integrates the tape reel 4123, the recycling reel 4124, and the synchronous belt 4122 into an independent module, which is mounted on the rotating frame 4111, preventing positional shifts in the components during rotation and reducing the impact of vibration on the recycling process.

[0054] In some embodiments, see Figure 9 The recycling assembly 412 also includes a first turntable 4125 and a second turntable. The first turntable 4125 is coaxially connected to the tape reel 4123 and rotates synchronously with the tape reel 4123; the second turntable is coaxially connected to the recycling reel 4124 and rotates synchronously with the recycling reel 4124. The diameter of the first turntable 4125 is larger than the diameter of the second turntable, and the two ends of the synchronous belt 4122 are respectively fitted onto the first turntable 4125 and the second turntable.

[0055] In this embodiment, the diameter difference between the first turntable 4125 and the second turntable forms the transmission ratio. Since the first turntable 4125 has a larger diameter, under the transmission of the synchronous belt 4122, the angular velocity of the recovery disc 4124 and the second turntable is greater than that of the tape disc 4123 and the first turntable 4125, which can quickly recover the peeled release paper and avoid the release paper from accumulating at the peeling point. The turntable structure increases the contact area between the synchronous belt 4122 and the wheel body, reduces the probability of the synchronous belt 4122 slipping, and improves the transmission stability. At the same time, by adjusting the turntable diameter ratio, it can flexibly adapt to the needs of release paper recovery of different thicknesses, enhancing the versatility of the device. This structure ensures the dynamic matching of the release paper recovery speed and the tape release speed, further improving the efficiency of continuous operation.

[0056] In some embodiments, see Figure 8 and Figure 9The recycling assembly 412 also includes a first guide rod 4127 and a second guide rod 4128. The first guide rod 4127 is mounted on the frame 4121, and its axial direction is parallel to the radial direction of the rotating frame 4111. The second guide rod 4128 is mounted on the rotating frame 4111, and its axial direction is perpendicular to both the axial direction of the first guide rod 4127 and the axial direction of the rotating frame 4111. Adhesive tape sequentially passes over the first guide rod 4127 and the second guide rod 4128, such that the tape surface is perpendicular to the radial direction of the rotating frame 4111. The first guide rod 4127 and the second guide rod 4128... 8. Through the vertically staggered axial arrangement, the lead-out angle of the tape can be precisely adjusted to ensure that the tape surface is perpendicular to the radial direction of the rotating frame 4111, so that it fits the outer circumference of the mandrel at the optimal angle. This angle adjustment avoids skewed adhesion, air bubbles or wrinkles caused by tape angle deviation, ensuring the sealing and adhesion of the mandrel wrapping and improving product quality. At the same time, the guide rod provides stable support for the tape, reducing its shaking and stretching deformation during the release process, avoiding poor peeling of the release paper due to tape looseness or tightness, and further ensuring the stability of continuous operation.

[0057] In some embodiments, see Figure 6 The traction unit 5 includes a meter counter 52 and a traction machine 51. The traction machine 51 pulls multiple parallel mandrels to move along the mandrel lead-out direction; the meter counter 52 is located at the front end of the traction machine 51 and is used to measure the length of the mandrels.

[0058] In practice, the traction machine 51 can be a tracked traction machine 51, or it can be a chain traction machine 51 or a wheeled traction machine 51, as long as it can drive the mandrel to move.

[0059] It should be noted that the meter counter 52 is a specialized device for dynamically measuring the length of materials produced in continuous production. It can record, display, and provide feedback on the running length of the mandrel in real time. The specific structure and working principle of the meter counter 52 are disclosed in the prior art and will not be repeated here.

[0060] The traction unit 5 provided in this embodiment provides stable conveying. The traction machine 51 drives the parallel bundled core to move at a constant speed along the lead-out direction through a constant traction force. The traction speed can be adjusted in real time according to the speed of the subsequent winding unit 6 to ensure precise matching between the traction speed, winding speed, and core rod processing speed, protecting the parallel structure and mechanical properties of the core rod and reducing the scrap rate of finished products. The meter counter 52 is located at the front end of the traction machine 51 and can measure the length of the core rod in real time from the traction stage, providing accurate data support for the fixed-length winding of the subsequent winding unit 6; meeting the requirement of fixed length for the core rod of the composite core conductor and reducing material waste caused by length deviation. The traction machine 51 and the meter counter 52 are linked through the control system. The length data measured by the meter counter 52 can be fed back to the traction machine 51 in real time. If the length measurement shows that the core rod is conveyed too fast or too slow, the traction machine 51 can automatically adjust the speed; no manual monitoring of speed and length is required, improving the degree of automation in production, reducing human operation errors, and ensuring the controllability and stability of the entire processing flow.

[0061] In some embodiments, see Figure 10 The winding unit 6 includes a cradle winding machine 61, which has I-beams 611 for winding the wrapped mandrel. The cradle winding machine 61 is adapted to parallel bundled mandrels. Through a unique cradle frame 4121 structure, the position and angle of the I-beams 611 can be dynamically adjusted during winding. Combined with constant tension control technology, this ensures that the parallel bundled mandrel remains straight during winding, without twisting or shifting. During winding, the cradle frame 4121 adjusts slowly as the roll diameter increases, ensuring the mandrel is always wound perpendicular to the axis of the I-beams 611, preventing parallelism damage due to roll diameter changes, and completely solving the winding problem of parallel bundled mandrels. The cradle winding machine 61 has a constant tension control function, which can set a constant winding tension according to the mandrel specifications, preventing tension fluctuations during winding from causing stretching damage or loose winding of the mandrel.

[0062] In some embodiments, see Figure 11 and Figure 12The winding unit 6 also includes a torque release assembly 62, which includes a mounting base 621, a lifting assembly 622, and a contact unit 623. The lifting assembly 622 is slidably mounted on the mounting base 621 in the left-right direction. The lifting assembly 622 has a lifting ring 6221 that moves in the up-down direction. A connecting ring 6222 is rotatably mounted inside the lifting ring 6221. The left-right direction is perpendicular to the mandrel lead-out direction. The contact unit 623 is connected to the connecting ring 6222. The contact unit 623 has two first rotating shafts 6231 and two second rotating shafts 6232. The rotation axes of the two first rotating shafts 6231 and the rotation axes of the two second rotating shafts 6232 are perpendicular to each other and to the mandrel lead-out direction, respectively. The two first rotating shafts 6231 and the two second rotating shafts 6232 form a contact channel. The carbon fiber composite core passes through the contact channel and rolls with the two first rotating shafts 6231 and the two second rotating shafts 6232, respectively.

[0063] It should be noted that the two first rotating shafts 6231 rotate in opposite directions, and the two second rotating shafts 6232 rotate in opposite directions.

[0064] In practical implementation, three-dimensional tension adjustment and stress release during mandrel winding are achieved through the collaboration of multiple components. The mounting base 621 provides stable support for the whole, and the lifting assembly 622 can slide along the direction perpendicular to the mandrel lead-out. The lifting ring 6221 contained therein can drive the contact unit 623 to move up and down, while the connecting ring 6222 inside the lifting ring 6221 can rotate freely, providing the contact unit 623 with the freedom of axial rotation. The two first rotating shafts 6231 and the two second rotating shafts 6232 in the contact unit 623 are distributed in a grid pattern, and the contact channel formed by the enclosure allows the mandrel to roll and make contact with each rotating shaft when passing through. When the mandrel generates radial stress due to changes in roll diameter or equipment vibration during winding, or circumferential torsional stress due to guide wire deviation, the connecting ring 6222 can drive the contact unit 623 to rotate around the axis. At the same time, the left and right sliding of the lifting component 622 and the up and down movement of the lifting ring 6221 can respectively adapt to the left and right offset and up and down position adjustment of the mandrel. With the rolling support of the grid-type rotating shaft, the radial and circumferential stress of the mandrel is released synchronously through mechanical movement, avoiding stress-induced self-twisting.

[0065] It should be noted that the connecting ring 6222 is coaxial with the lifting ring 6221, and the connecting ring 6222 can rotate, so that the connecting ring 6222 can adapt to the movement of the mandrel.

[0066] The winding unit 6 provided in this embodiment has a stable structure. Through the left and right movement of the lifting component 622, the up and down movement of the lifting ring 6221, and the axial rotation of the connecting ring 6222, combined with the grid-type contact unit 623, it achieves three-dimensional coordinated adjustment and stress release of the mandrel in the radial, circumferential, and axial directions. It is perfectly adapted to the winding process of high-flexibility and high-reliability multi-layer bundled carbon fiber composite cores. Through the rolling cooperation and multi-directional motion compensation of the contact channel, the torsional stress and local tension peaks generated by the mandrel during the winding process can be eliminated in real time, avoiding self-twisting during winding and preventing long-length winding breakage accidents. The rolling cooperation between the contact unit 623 and the mandrel, rather than sliding friction, can reduce wear on the surface of the mandrel, ensure that its mechanical properties are not damaged, and ultimately significantly improve the winding quality of the mandrel.

[0067] In some embodiments, see Figures 12 to 16 The contact unit 623 also includes a housing 6233, which is connected to the front side of the connecting ring 6222. Two first rotating shafts 6231 and two second rotating shafts 6232 are rotatably connected to the housing 6233. The two first rotating shafts 6231 are located in front of the two second rotating shafts 6232, and the axial direction of the first rotating shafts 6231 is perpendicular to the axial direction of the second rotating shafts 6232. The two first rotating shafts 6231 are spaced apart, and the two second rotating shafts 6232 are spaced apart. The mandrel passes through the space between the two first rotating shafts 6231 and the space between the two second rotating shafts, and enters the winding machine for winding.

[0068] In this embodiment, the arrangement of the outer shell 6233 and the front-to-back, vertically distributed design of the rotating shafts in the contact unit 623 enhances structural stability. The outer shell 6233 integrates the two first rotating shafts 6231 and the two second rotating shafts 6232 into one unit, providing a stable mounting and support foundation for the rotating shafts. This ensures that the grid-like distribution structure does not deform, maintains the stable shape of the contact channel, and thus guarantees uniform contact between the mandrel and the rotating shafts. The two first rotating shafts 6231 are located in front of the second rotating shafts 6232 and are axially perpendicular. This allows the mandrel to pass through the contact channel, first undergoing initial guidance and tension buffering via the front first rotating shafts 6231, and then undergoing secondary positioning and stress release via the rear second rotating shafts 6232. This step-by-step adaptation effect avoids tension impact caused by the mandrel suddenly entering the contact channel. In addition, the spaced rotating shafts allow the mandrel to roll in conjunction with the shafts, which can significantly reduce frictional resistance and reduce wear on the mandrel surface. The first rotating shaft 6231 can accommodate the vertical positional deviation of the mandrel, and the second rotating shaft 6232 can accommodate the horizontal deviation. Together with the axial rotation of the connecting ring 6222, a comprehensive stress relief system is formed in all directions (vertical, horizontal, and axial), which improves the yield of mandrel winding and its adaptability to high-end applications.

[0069] In some embodiments, see Figure 12The mounting base 621 includes two brackets 6211, a drive component 6212, and a rotating screw 6213. The two brackets 6211 are spaced apart along the direction of the vertical mandrel extension; the drive component 6212 is located on the outside of one of the brackets 6211, and the drive component 6212 has a rotating output end, the rotation axis of which is parallel to the left and right direction; the two ends of the rotating screw 6213 are rotatably connected to the two brackets 6211 respectively, and one end is connected to the rotating output end. The outer circumference of the rotating screw 6213 has an external thread, and the lifting assembly 622 has an internal threaded hole corresponding to the external thread, the internal threaded hole and the external thread engaging.

[0070] In practice, the two brackets 6211 are vertically arranged support plates to provide stable support.

[0071] Optionally, the drive unit 6212 can be a servo motor or a rotary motor.

[0072] The mounting base 621 provided in this embodiment has a stable structure. The two spaced brackets 6211 provide stable end support for the rotating screw 6213, ensuring the straightness of the lifting assembly 622 during sliding, thereby ensuring the stability of the support position of the contact unit 623 on the mandrel and reducing tension fluctuations caused by component shaking. The drive component 6212 drives the rotating screw 6213 to rotate through the rotating output end. Utilizing the threaded engagement between the screw and the lifting assembly 622, the rotational motion is converted into linear motion of the lifting assembly 622 along a direction perpendicular to the mandrel lead-out direction. This allows for flexible adjustment of the sliding speed and direction of the lifting assembly 622, adapting to the winding requirements of mandrels of different specifications and significantly improving material changing efficiency.

[0073] In some embodiments, see Figure 12 The mounting base 621 also includes a guide rod 6214. The two ends of the guide rod 6214 are rotatably connected to two brackets 6211 respectively. The axis of the guide rod 6214 is parallel to the axis of the rotating screw 6213. The guide rod 6214 disperses the force on the lifting assembly 622, avoiding the rotating screw 6213 from bearing all the radial load alone, reducing the probability of screw wear and deformation, extending the service life of the screw and the drive component 6212, and reducing equipment maintenance costs.

[0074] In some embodiments, see Figure 15 and Figure 16 The lifting assembly 622 also includes a movable seat 6223, a support frame 6224, and a lifting rod 6225. The movable seat 6223 is slidably mounted on the mounting base 621 in the left-right direction; the support frame 6224 is vertically mounted on the top of the movable seat 6223, and the central axis of the support frame 6224 is parallel to the front-back direction; the lifting rod 6225 is vertically and flexibly inserted through the top of the support frame 6224, and the bottom end of the lifting rod 6225 extends into the inner frame of the support frame 6224 and is rotatably connected to the lifting ring 6221.

[0075] It should be noted that the support frame 6224 is a square frame 4121, and the central axis of the support frame 6224 is parallel to the front and back direction. The mandrel passes through the inside of the support frame 6224 and then enters the winding machine for winding.

[0076] In practical implementation, this structure significantly improves movement flexibility through the independent support of the support frame 6224 and the rotatable connection of the lifting rod 6225. Furthermore, the inner frame of the support frame 6224 can limit the movement range of the lifting ring 6221, preventing it from moving excessively due to accidental force and protecting the contact unit 623 and the rotating shaft from damage. Simultaneously, when maintenance of the lifting rod 6225 or the contact unit 623 is required, the relevant components of the support frame 6224 can be disassembled individually without the need for a complete disassembly device, reducing maintenance difficulty and downtime, and improving the overall operating efficiency of the equipment.

[0077] In practical implementation, the movable base 6223 serves as a sliding foundation that cooperates with the mounting base 621, ensuring the overall sliding stability of the lifting assembly 622 along the direction perpendicular to the mandrel's lead-out direction. The support frame 6224 provides rigid support for the lifting rod 6225, preventing the lifting rod 6225 from bending due to cantilever stress when it drives the lifting ring 6221 and contact unit 623 to rise and fall. This ensures that the central axis of the lifting ring 6221 is always consistent with the mandrel's lead-out direction, preventing uneven stress on the mandrel caused by the contact unit 623's offset. The lifting rod 6225 passes through the top of the support frame 6224 and is rotatably connected to the lifting ring 6221, allowing the lifting ring 6221 to rotate freely while moving up and down with the lifting rod 6225, thus releasing axial rotational stress and meeting the multi-dimensional tension adjustment requirements during mandrel winding.

[0078] In some embodiments, the lifting rod 6225 is a screw rod, and the top of the support frame 6224 is provided with a screw hole corresponding to the lifting rod 6225. The screw hole is threadedly engaged with the lifting rod 6225, and the bottom end of the lifting rod 6225 is rotatably connected to the lifting ring 6221. The support frame 6224 is provided with a vertically extending limiting groove corresponding to the lifting ring 6221. The limiting groove abuts against the lifting ring 6221 to limit the rotation of the lifting ring 6221 in the vertical direction.

[0079] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A parallel bundle production line for multi-strand carbon fiber composite cores, characterized in that, It includes a mandrel lead-out unit (1), a preforming frame (2), a braiding unit (3), a wrapping unit (4), a traction unit (5), and a winding unit (6) that are connected sequentially along the processing flow direction; The mandrel lead-out unit (1) has multiple rotating drums (12) and multiple pressure roller assemblies (13). The rotation axis of the rotating drum (12) is perpendicular to the mandrel lead-out direction. Each rotating drum (12) is wound with a single mandrel. The rotating drum (12) corresponds one-to-one with the pressure roller assembly (13). The pressure roller assembly (13) has a one-way channel. The single mandrel on the rotating drum (12) passes through the one-way channel and moves to the preforming frame (2). The preform frame (2) has a first guide hole (21) and a plurality of second guide holes (22). The plurality of second guide holes (22) are arranged concentrically around the first guide hole (21). The first guide hole (21) and the plurality of second guide holes (22) respectively guide a mandrel through. The core rod lead-out unit (1) also includes a mounting frame (11), the top of which is provided with multiple fixed seats. One end of the rotating cylinder (12) rotates through the fixed seat and is connected to a magnetic damper (14). Multiple rotating drums (12) are respectively rotatably disposed on the top two sides of the mounting frame (11), and the multiple rotating drums (12) are staggered along the mandrel lead-out direction, and multiple pressure roller assemblies (13) and multiple rotating drums (12) on the same side are alternately arranged; The pressure roller assembly (13) includes: A support frame (131) is connected to the mounting frame (11) and is located between two adjacent rotating cylinders (12) on the same side; An upper extrusion roller (132) is rotatably connected to the support frame (131), and the rotation axis of the upper extrusion roller (132) is perpendicular to the mandrel lead-out direction; and The lower extrusion roller (133) is rotatably connected to the support frame (131). The rotation axis of the lower extrusion roller (133) is perpendicular to the mandrel lead-out direction, and the rotation directions of the lower extrusion roller (133) and the upper extrusion roller (132) are opposite.

2. The parallel bundled production line for multi-strand carbon fiber composite cores as described in claim 1, characterized in that, The braiding unit (3) includes a binding machine for binding multiple mandrels together.

3. The parallel bundled production line for multi-strand carbon fiber composite cores as described in claim 1, characterized in that, The wrapping unit (4) includes a first wrapping component (41) and a second wrapping component (42), wherein the first wrapping component (41) and the second wrapping component (42) respectively wrap around the outer periphery of the mandrel; The first wrapping component (41) and the second wrapping component (42) are arranged at intervals along the mandrel lead-out direction and the wrapping directions are opposite.

4. The parallel bundled production line for multi-strand carbon fiber composite cores as described in claim 3, characterized in that, The first wrapping component (41) includes: A base (411) has a wrapping hole extending along the mandrel lead-out direction. The base (411) has a rotatable rotating frame (4111), the rotation axis of which is parallel to the mandrel lead-out direction. A wrapping hole is located at the rotation center of the rotating frame (4111). The mandrel enters the wrapping hole and is wrapped with adhesive tape within it. A recycling assembly (412) is disposed on the outer periphery of the rotating frame (4111). The recycling assembly (412) has a tape reel (4123) for winding tape and a recycling reel (4124) for recycling release paper on the tape.

5. The parallel bundled production line for multi-strand carbon fiber composite cores as described in claim 4, characterized in that, The recycling component (412) also includes: A frame (4121) is mounted on a rotating frame (4111) on the wire production line. The tape reel (4123) is rotatably mounted on the frame (4121). A recycling reel (4124) is rotatably mounted on one side of the frame (4121) connected to the tape reel (4123), and the rotation direction of the recycling reel (4124) is parallel to the rotation direction of the tape reel (4123). A synchronous belt (4122) is provided with a tape reel (4123) and a recycling reel (4124) respectively at its two ends. The tape reel (4123) and the recycling reel (4124) rotate synchronously to wrap the release paper peeled from the tape reel (4123) onto the recycling reel (4124).

6. The parallel bundled production line for multi-strand carbon fiber composite cores as described in claim 1, characterized in that, The traction unit (5) includes: Traction machine (51) pulls multiple parallel mandrels to move along the mandrel lead-out direction; and A meter counter (52) is located at the front end of the traction machine (51) and is used to measure the length of the mandrel.

7. The parallel bundled production line for multi-strand carbon fiber composite cores as described in claim 1, characterized in that, The winding unit (6) includes a cradle winding machine (61) having an I-beam reel (611) for winding the wrapped mandrel.

8. The parallel bundled production line for multi-strand carbon fiber composite cores as described in claim 1, characterized in that, The winding unit (6) further includes a torque release assembly (62), which includes: Mounting base (621); A lifting assembly (622) is slidably mounted on a mounting base (621) in the left-right direction. The lifting assembly (622) has a lifting ring (6221) that moves in the up-down direction. A connecting ring (6222) is rotatably mounted inside the lifting ring (6221), and the left-right direction is perpendicular to the mandrel lead-out direction. A contact unit (623) is connected to the connecting ring (6222). The contact unit (623) has two first rotating shafts (6231) and two second rotating shafts (6232). The rotation axes of the two first rotating shafts (6231) are perpendicular to each other and to the rotation axes of the two second rotating shafts (6232), respectively, and are perpendicular to the mandrel lead-out direction. The two first rotating shafts (6231) and the two second rotating shafts (6232) form a contact channel. The carbon fiber composite core passes through the contact channel and rolls with the two first rotating shafts (6231) and the two second rotating shafts (6232), respectively.

Images