A carbon fiber rolling machine for racket middle tube

Abstract

The present application relates to the field of plastic forming, especially to a badminton racket middle tube carbon fiber rolling machine, which comprises a bearing base, a bearing guide rail is arranged at the upper end of the bearing base, an operation platform base and a reciprocating rolling moving seat are assembled on the guide rail, a rolling pressing block is driven by a cylinder to realize downward rolling pressing, fixed shafts and moving shafts are arranged on the rolling moving seat, the distance between the two shafts is adjusted by a distance adjusting cylinder to complete discharging, a supporting seat which can slide horizontally is arranged in a feeding groove below the shaft body, the supporting seat supports the shaft body in the middle to reduce deformation during operation, and the supporting seat shifts laterally to avoid the channel during discharging, the equipment bears the tube core by the fixed shaft and the moving shaft, effectively prevents the workpiece from deviating, avoids the carbon cloth from wrinkling, the movable supporting seat solves the interference problem between the long shaft and the feeding structure, the equipment can realize parallel operation of processes, improves production efficiency, and is matched with active driving and increased friction structure to effectively avoid the problem of transmission slip of ferrous components.

Description

Technical Field

[0001] This invention relates to a carbon fiber winding machine for badminton racket shafts, belonging to the field of plastic molding. Background Technology

[0002] The forming process of the badminton racket tube requires the use of sheet metal roller pressing equipment to complete the winding and compaction of carbon fiber prepreg. This type of equipment drives the core mold to rotate through the extrusion friction between the base plate and the core mold, so that the carbon fiber cloth is wrapped around the outer wall of the core tube layer by layer.

[0003] The standard processing procedure for existing equipment is as follows: the operator takes out the core mold of the tube and glues and fixes the rectangular carbon fiber prepreg on one side to the outer wall of the core tube on the bottom plate. Then the equipment runs, the top plate presses down and fits tightly with the core mold, and the bottom plate continuously performs back-and-forth lateral movement. The friction generated by the reciprocating motion drives the core mold to rotate continuously, so that the carbon cloth is evenly wound and pressed and adhered to the outer surface of the core mold. After the entire winding process is completed, the top plate is raised and the formed tube is manually removed.

[0004] The existing equipment has the following shortcomings: First, it does not have an automatic feeding function and relies on manual material handling; second, the workpiece is prone to misalignment during placement. Since the equipment relies solely on the unidirectional movement of the base plate to complete the rolling process, workpiece misalignment will lead to uneven force distribution on the core mold and inconsistent pressure on the carbon cloth, resulting in wrinkles on the surface after molding; third, the equipment only has a single working base plate, and the carbon cloth bonding and rolling operations share the same workstation. During processing, operators must wait until the process is completed before they can pick up and place the next workpiece and bond it, and the various processes cannot be carried out in parallel. Summary of the Invention

[0005] To address the shortcomings of existing technologies, the present invention aims to provide a carbon fiber rolling machine for badminton racket shafts, which solves the following deficiencies of existing devices: First, they lack automatic feeding functions and rely on manual material handling; second, workpieces are prone to misalignment during placement, as the equipment relies solely on the unidirectional movement of the base plate to complete the rolling process, resulting in uneven force distribution on the core mold and inconsistent pressure on the carbon cloth, leading to wrinkles on the surface after molding; third, the equipment has only a single working base plate, and carbon cloth bonding and rolling operations share the same workstation, requiring operators to wait continuously until the process is completed before they can pick up, place, and bond the next workpiece, preventing the parallel execution of various processes.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solution: A carbon fiber coiling machine for badminton racket tubes, comprising: a bearing base, a load-bearing guide rail symmetrically arranged on the upper end face of the bearing base, an operating platform base and a roller pressing moving seat slidably mounted on the load-bearing guide rail, the roller pressing moving seat being able to complete a back-and-forth reciprocating sliding feed along the load-bearing guide rail, a coiling pressing block being installed above the operating platform base, the coiling pressing block being equipped with a cylinder driving assembly, the cylinder driving assembly being able to drive the coiling pressing block to press vertically downward, applying a roller pressing load to the workpiece to complete the carbon fiber tube coiling operation; The roller pressing moving seat has a fixed shaft and a moving shaft arranged parallel to each other along the axial direction. The moving shaft is equipped with an adjusting cylinder. The adjusting cylinder adjusts the center distance between the fixed shaft and the moving shaft by telescopic movement. After the rolling process is completed, the adjusting cylinder retracts to increase the distance between the fixed shaft and the moving shaft, and the formed carbon fiber tube can fall between the two roller shafts. The roller pressing moving seat has a through-type feeding groove directly below the fixed shaft and the moving shaft. Inside the feeding groove, a support seat that can slide laterally left and right is assembled via a transverse guide rail. During the rolling operation, the support seat slides to the middle of the feeding groove to support the middle of the fixed shaft and the moving shaft, thus counteracting the deflection deformation caused by the pressure on the long-span roller shaft. During the unloading stage, the support seat slides laterally to the side of the feeding groove to make way for the unloading channel and avoid interference with the falling of the finished tube.

[0007] The support base is equipped with a roller drive module along the axial direction. The roller drive module includes a transmission rod, a transmission belt, a first bearing roller, a second bearing roller, roller body auxiliary teeth, and a reversing transmission gear. A first bearing roller and a second bearing roller, which are spaced apart from each other, are axially rotatably mounted above the support base. The first bearing roller supports the fixed shaft, and the second bearing roller supports the moving shaft, so as to provide zoned support for the downward load on the fixed shaft and the moving shaft under the pressure winding condition. Both ends of the first and second bearing rollers are equipped with roller body auxiliary teeth, and the reversing transmission gear is meshed between each roller body auxiliary tooth. The reversing transmission gear is used for reversing transmission.

[0008] Preferably, guide slide bases are symmetrically arranged on the inner side of the bearing base, and the guide slide bases limit and guide the roller pressing moving seat. A main drive assembly is assembled on the bearing base, and the main drive assembly includes a drive screw, which is connected to the roller pressing moving seat in a transmission manner. A drive rack is fixedly arranged on one side of the upper surface of the bearing base.

[0009] Preferably, the adjustable cylinder has a symmetrical arrangement on both sides, and the support base is equipped with a side sliding drive component. The side sliding drive component includes a drive motor and a transmission screw. The output end of the drive motor is connected to the transmission screw, and the transmission screw is threadedly connected to the support base.

[0010] Preferably, a transmission rod is axially mounted on the bottom of the support base, and a toothed protrusion is integrally formed in the middle of the transmission rod. The toothed protrusion is exposed on the lower surface of the support base. Transmission belts are provided on the left and right sides of the transmission rod, and the transmission belts are connected to the first bearing roller. Both the outer surfaces of the first and second bearing rollers are covered with a rubber outer layer, which is used to increase the friction coefficient of the roller contact surface.

[0011] Preferably, an outer auxiliary support assembly is axially mounted above the support base. The outer auxiliary support assembly includes a fixed support roller and a movable support roller. The fixed support roller is axially fixedly installed on the upper part of the support base and forms a lateral limiting bearing support for the fixed shaft. The bottom of the movable support roller is fixedly provided with a sliding base, and a corresponding sliding groove limiting post is provided on the support base. The sliding base and the sliding groove limiting post are slidably engaged, so that the entire movable support roller can make inclined lifting and sliding movements along the sliding groove limiting post. When the movable support roller slides to the top position of the chute limiting post, the movable support roller forms a lateral abutment support for the movable shaft. When the movable shaft performs a distance adjustment and retraction action, the movable support roller can slide down along the chute limiting post to avoid it, thus eliminating structural interference during the distance adjustment and movement of the movable shaft. The support base has a sliding groove inside corresponding to the position of the sliding groove limit post. A support plate is slidably assembled inside the sliding groove. A square spring is assembled between the support plate and the bottom of the groove of the support base. When the moving support roller slides down to avoid the obstacle, it squeezes the support plate and the square spring. The sliding buffer is achieved by the elastic deformation of the square spring.

[0012] Preferably, the bottom of the support base has a through support opening corresponding to the movement area of ​​the sliding base. The bottom surface of the sliding base is provided with a support surface, which is exposed through the support opening. The side of the feeding groove on the roller pressing moving base is provided with a limiting protrusion. The limiting protrusion has a gradually changing height structure. The height of the limiting protrusion is the largest in the middle area of ​​the feeding groove, and the height of the limiting protrusion gradually decreases from the middle to the side until the height at one end of the feeding groove is zero. The support surface and the top surface of the limiting protrusion form a rigid hard contact fit. When the support seat slides to the working position in the middle of the feeding trough, the support surface of the sliding base abuts against the highest section of the limiting protrusion, so that the entire sliding base is lifted to the extreme high position. At this time, the moving support roller is kept in the upper limit support position, forming a stable rigid lateral support for the moving shaft.

[0013] Preferably, the inner sidewall of the discharge chute is provided with a power synchronization groove arranged in a transverse direction. A power transmission assembly is rotatably assembled in the power synchronization groove. The power transmission assembly includes a transition tooth, a lateral buffer spring, a transmission tooth, a transmission rod, and a contact tooth. The transition tooth has a lateral reserved sliding clearance, and a lateral buffer spring is installed on the side of the transition tooth. The lateral buffer spring provides lateral buffer displacement margin for the transition tooth. When the support seat slides to the working position in the middle of the feeding trough and performs the roller pressing support operation, the transition tooth and the tooth groove protrusion integrally formed in the middle of the transmission rod mesh with each other. The transmission teeth and transition teeth are meshed and connected. A transmission rod is fixedly inserted through the transmission teeth along the axial direction. One end of the transmission rod extends horizontally outward. A contact tooth is fixedly assembled at the outward end of the transmission rod. The contact tooth meshes with the drive rack arranged on the bearing base. The length and installation position of the drive rack are subject to the following limitations: the contact teeth only engage with the drive rack when the cylinder drive assembly drives the rolling block to press the badminton racket tube blank downwards and formally starts the rolling process. The engagement start time of the contact teeth and the drive rack is synchronized with the pressing contact time of the rolling block and the tube blank.

[0014] Preferably, top pressing components are symmetrically arranged on both sides of the discharge chute, and the top pressing components include a top pressing plate, a support spring and several support bars; The support spring is installed at the bottom of the top pressure plate and applies an upward elastic force to the top pressure plate. The plurality of support bars are rotatably installed on the upper surface of the top pressure plate along the axial direction and respectively contact the outer circular surfaces of the fixed shaft and the moving shaft. The top pressure assembly is used to provide vertical support force to the fixed shaft and the moving shaft. A feeding track is provided on the upper surface of the bearing base and in the area below the corresponding roller pressing moving seat. The feeding end of the feeding track is opened on the upper surface of the bearing base, and the discharging end of the feeding track extends through to the side of the bearing base.

[0015] The carbon fiber winding machine for badminton racket shafts of the present invention has the following effects: 1. Automatic feeding is achieved. The equipment is equipped with a dedicated feeding track. After the workpiece is rolled, it can be automatically fed off by its own weight and exported along the track without the need for manual material handling, thus making up for the lack of automatic feeding function in existing devices.

[0016] 2. Anti-deviation and anti-wrinkle: The equipment adopts a load-bearing structure with fixed shaft and moving shaft to place the core to be processed, which can form a 360-degree positioning constraint on the core. Traditional equipment relies on a single base plate for rolling operation. If the workpiece is misplaced, it will cause uneven force on the core mold and wrinkles. However, this device relies on the fixed shaft and moving shaft to support the core. The workpiece placement position is effectively limited and there will be no position deviation during operation. The carbon fiber prepreg is subjected to uniform force and the tensile amount remains consistent throughout the winding and compaction process, which solves the wrinkle problem caused by workpiece skewing.

[0017] 3. The processes can be carried out in parallel. The equipment is divided into independent working areas. The carbon cloth bonding pretreatment and the roll forming process can be carried out in separate areas simultaneously. Operators can complete the preparation of new workpieces while the equipment is running and processing, without having to wait for the end of a single process. This breaks the limitations of traditional equipment with shared workstations and sequential processes.

[0018] 4. Movable support base to avoid structural interference and improve deformation of fixed and moving shafts. In response to the problem of large span between fixed and moving shafts and easy structural interference in the material feeding chute below, this device is equipped with a support base that can slide laterally. During operation, the support base moves to the middle position to support the long-span shaft and counteract the bending deformation caused by the pressure on the shaft. During the feeding stage, the support base slides laterally to make way, thus solving the interference problem between the long shaft and the feeding structure.

[0019] 5. Active drive combined with friction-enhancing structure to prevent transmission slippage. The roller drive module inside the support can actively drive the fixed shaft and the moving shaft to rotate. At the same time, the surface of the bearing roller is equipped with a rubber outer layer to increase the friction coefficient of the contact surface. In response to the problem of easy slippage between the iron shaft and the iron tube core due to hard contact, this structure relies on active torque and friction-enhancing design to ensure that the shaft and the tube core rotate synchronously and operate stably, ensuring the uniformity of carbon cloth winding and compaction. Attached Figure Description

[0020] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the structure of a carbon fiber winding machine for badminton racket tubes according to the present invention.

[0021] Figure 2 This is a partial cross-sectional view of the present invention.

[0022] Figure 3 This is a schematic diagram of the roller pressing moving seat and related components of the present invention.

[0023] Figure 4 This is a schematic diagram of the support base and related components of the present invention.

[0024] Figure 5This is a detailed schematic diagram of the roller drive module of the present invention.

[0025] Figure 6 This is a schematic diagram of the assembly of the movable support roller and related components of the present invention.

[0026] Figure 7 This is a schematic diagram of the limiting protrusion of the present invention.

[0027] Figure 8 This is a schematic diagram of the sliding base and the limiting protrusion of the present invention.

[0028] Figure 9 This is a schematic diagram of the power transmission component of the present invention.

[0029] Figure 10 This is a detailed structural diagram of the power transmission component of the present invention.

[0030] Figure 11 This is a schematic diagram of the working state of the support base and related components of the present invention.

[0031] Explanation of reference numerals in the attached figures: 1. Bearing base; 11. Load-bearing guide rail; 12. Rolling pressure block; 121. Cylinder drive assembly; 13. Guide slide base; 14. Main drive assembly; 141. Drive screw; 15. Drive rack; 2. Operating platform base; 3. Roller pressing moving seat; 31. Fixed shaft; 32. Moving shaft; 321. Adjusting cylinder; 33. Discharge chute; 34. Transverse guide rail; 35. Limiting protrusion; 36. Power synchronization groove; 4. Support base; 41. Side sliding drive component; 411. Drive motor; 412. Transmission screw; 43. Slide groove limit post; 44. Sliding slide groove; 45. Support opening; 42. Roller drive module; 421. Transmission rod; 4211. Toothed protrusion; 422. Transmission belt; 423. First bearing roller; 424. Second bearing roller; 425. Roller body auxiliary tooth; 426. Reversing transmission gear; 427. Rubber outer layer; 428. Outer auxiliary support assembly; 4281. Fixed support roller; 4282. Moving support roller; 4283. Sliding base; 42831. Support surface; 4284. Support plate; 4285. Square spring; 5. Power transmission assembly; 51. Transition gear; 52. Lateral buffer spring; 53. Transmission gear; 54. Transmission rod; 55. Contact gear; 6. Top pressure assembly; 61. Top pressure plate; 62. Support spring; 63. Support bar; 7. Feeding track; 71. Feeding end; 72. Discharge end. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0033] Furthermore, in the description of this invention, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this 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. Therefore, they should not be construed as limitations on this invention.

[0034] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral unit; 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. However, specifying a direct connection indicates that the two main bodies are not connected through a transitional structure, but rather formed as a whole through a connecting structure. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0035] In this invention, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0036] Please see Figures 1 to 11This invention provides a carbon fiber coiling machine for badminton racket shafts. The technical solution includes: a load-bearing guide rail 11 symmetrically arranged on the upper surface of a support base 1; an operating platform base 2 and a roller pressing moving seat 3 slidably mounted on the load-bearing guide rail 11; the roller pressing moving seat 3 capable of reciprocating sliding feed along the load-bearing guide rail 11; symmetrically arranged guide bases 13 on the inner side of the support base 1, which limit and guide the roller pressing moving seat 3; a main drive assembly 14 mounted on the support base 1, including a drive screw 141; the drive screw 141 and the roller pressing moving seat 3 forming a transmission connection, with the operation of the drive screw 141 providing power for the forward and backward sliding of the roller pressing moving seat 3; and a drive rack 15 fixedly installed on one side of the upper surface of the support base 1, which provides the linear power input basis for the entire machine's roller group transmission mechanism.

[0037] A rolling pressure block 12 is installed above the operating platform base 2. The rolling pressure block 12 is equipped with a cylinder drive assembly 121. The cylinder drive assembly 121 serves as a power source and can drive the rolling pressure block 12 to perform a vertical downward pressing action. After the rolling pressure block 12 moves downward, it can apply a stable roller load to the workpiece to be processed, and work together with the other structures to complete the rolling operation of the carbon fiber tube.

[0038] The movable shaft 32 is equipped with an adjusting cylinder 321, which is arranged symmetrically on both sides. Through its extension and retraction, the center distance between the fixed shaft 31 and the movable shaft 32 can be flexibly adjusted. When the rolling process is in normal operation, the adjusting cylinder 321 maintains a fixed distance to ensure stable rolling of the workpiece. After the rolling process is completed, the adjusting cylinder 321 retracts, widening the distance between the fixed shaft 31 and the movable shaft 32, leaving space for the formed carbon fiber tube to fall.

[0039] Directly below the fixed shaft 31 and the moving shaft 32, the roller pressing moving seat 3 has a through-type feeding trough 33. A transverse guide rail 34 is installed inside the feeding trough 33. A support seat 4, capable of sliding laterally along the trough, is mounted on the transverse guide rail 34. The support seat 4 is equipped with a side-sliding drive component 41, which consists of a drive motor 411 and a transmission screw 412. The output end of the drive motor 411 is connected to the transmission screw 412, and the transmission screw 412 is further connected to the support seat 412. The support 4 forms a threaded fit, which provides power for the lateral sliding of the support 4. During the rolling process, the support 4 will slide to the middle area of ​​the feeding groove 33, and support the middle position of the fixed shaft 31 and the moving shaft 32 from below, effectively offsetting the bending deformation of the long span shaft under pressure. When entering the feeding stage, the support 4 slides to the side of the feeding groove 33, actively making way for the material dropping channel, and avoiding interference of its own structure with the falling action of the finished tube.

[0040] A first bearing roller 423 and a second bearing roller 424 are rotatably mounted on the upper part of the support base 4 along the axis. The first bearing roller 423 supports the fixed shaft 31 above, and the second bearing roller 424 supports the movable shaft 32 above, so as to realize the partition bearing of the two main shafts under the rolling pressure condition. Roller body auxiliary teeth 425 are installed at both ends of the first bearing roller 423 and the second bearing roller 424. The reversing transmission gear 426 is meshed between the corresponding roller body auxiliary teeth 425 on both sides. The power reversing transmission is realized by the reversing transmission gear 426, so as to ensure that the rotation direction and speed of the two sets of bearing rollers remain synchronized.

[0041] An outer auxiliary support assembly 428 is also mounted axially above the support base 4. The outer auxiliary support assembly 428 includes a fixed support roller 4281 and a movable support roller 4282. The fixed support roller 4281 is axially fixed to the upper part of the support base 4 and can provide lateral limiting and load support for the fixed shaft 31, preventing the fixed shaft 31 from shifting laterally during operation. The bottom of the movable support roller 4282 is fixedly connected to a sliding base 4283. A groove limiting post 43 is provided on the support base 4 at the position corresponding to the sliding base 4283. The sliding base 4283 and the groove limiting post 43 slide together, so that the movable support roller 4282 can complete the tilting and lifting sliding movement along the groove limiting post 43. When the movable support roller 4282 slides to the top limit position of the groove limiting post 43, it will abut against the movable shaft 32 from the side, providing stable lateral support for the movable shaft 32. When the adjusting cylinder 321 drives the movable shaft 32 to perform the adjusting and retracting action, the movable support roller 4282 can slide down along the groove limiting post 43 to avoid it, eliminating the motion interference between the structures.

[0042] A sliding groove 44 is provided inside the support base 4 at the position corresponding to the sliding groove limiting post 43. A support plate 4284 that can slide up and down is installed inside the sliding groove 44. A square spring 4285 is installed between the support plate 4284 and the bottom of the groove of the support base 4. During the process of the moving support roller 4282 sliding down to avoid obstacles, it will simultaneously squeeze the support plate 4284 and compress the square spring 4285. The elastic deformation of the square spring 4285 will be used to buffer and dampen the sliding movement. At the same time, the square spring 4285 can complete the structural reset by its own elastic force.

[0043] The bottom of the support base 4 has a through support opening 45 corresponding to the movement area of ​​the sliding base 4283. The bottom surface of the sliding base 4283 is provided with a support surface 42831, which is exposed outward from the support opening 45. The limiting protrusion 35 adopts a gradually changing height structure design. The height of the limiting protrusion 35 is the largest in the middle area of ​​the feeding groove 33, and the height gradually decreases from the middle to both sides until the height at the end of the feeding groove 33 is zero. The support surface 42831 of the sliding base 4283 and the top surface of the limiting protrusion 35 form a rigid connection. In the case of sexual contact, when the support seat 4 slides to the middle working position of the discharge trough 33, the support surface 42831 of the sliding base 4283 abuts against the highest position of the limiting protrusion 35, lifting the sliding base 4283 to a high position. At this time, the moving support roller 4282 remains in the upper limit support position, continuously providing rigid lateral support for the moving shaft 32. When the support seat 4 slides to the side, the sliding base 4283 contacts the limiting protrusion 35 with decreasing height in sequence, driving the moving support roller 4282 to automatically descend, completing the release and avoidance of lateral support.

[0044] The inner wall of the discharge trough 33 is provided with a power synchronization groove 36 arranged in a transverse direction. The power transmission assembly 5 is rotatably assembled inside the power synchronization groove 36. The power transmission assembly 5 consists of a transition tooth 51, a lateral buffer spring 52, a transmission tooth 53, a transmission rod 54, and a contact tooth 55. The transition tooth 51 has a lateral sliding clearance reserved, and a lateral buffer spring 52 is assembled on its side. The lateral buffer spring 52 can provide a lateral buffer displacement margin for the transition tooth 51, effectively reducing the impact generated by gear meshing and reducing the wear of parts. When the support seat 4 is in the middle working position of the discharge trough 33, the transition tooth 51 meshes with the tooth groove protrusion 4211 at the bottom of the transmission rod 421, and at the same time, the transition tooth 51 meshes with the transmission tooth 53 for transmission. A transmission rod 54 is fixedly inserted through the transmission gear 53 along the axial direction. One end of the transmission rod 54 extends horizontally to the outside of the power synchronization groove 36, and a contact tooth 55 is fixedly installed at the extended end. The contact tooth 55 meshes with the drive rack 15 on the bearing base 1. The layout length and installation position of the drive rack 15 are designed so that the contact tooth 55 will only mesh with the drive rack 15 to transmit power when the cylinder drive assembly 121 drives the rolling pressure block 12 to move down and press the badminton racket tube blank and officially start the rolling process. When the rolling pressure block 12 is raised, the processing process is paused, or the unloading stage is entered, the contact tooth 55 will simultaneously disengage from the drive rack 15 and automatically cut off the forced transmission of the roller group, realizing the stationary clutch control of the power.

[0045] In addition, top pressing components 6 are symmetrically arranged on both sides of the discharge trough 33. The top pressing components 6 include a top pressing plate 61, a support spring 62 and several support bars 63. The support spring 62 is installed at the bottom of the top pressing plate 61 and continuously applies an upward elastic force to the top pressing plate 61. The multiple support bars 63 are rotatably mounted on the upper surface of the top pressing plate 61 along the axial direction, and the support bars 63 are in contact with the outer circular surfaces of the fixed shaft 31 and the moving shaft 32 respectively. The entire set of top pressing components 6 can continuously provide vertical auxiliary support force for the fixed shaft 31 and the moving shaft 32.

[0046] A feeding track 7 is provided on the upper surface of the support base 1 and in the area below the corresponding roller pressing moving seat 3. The feeding end 71 of the feeding track 7 is opened on the upper surface of the support base 1, and the discharging end 72 extends through to the side of the support base 1. The formed carbon fiber tube can be smoothly discharged from the equipment along the feeding track 7, so as to realize the orderly discharge of finished products.

[0047] In this embodiment, a fixed shaft 31 and a moving shaft 32 are arranged parallel to each other along the axial direction on the roller pressing moving seat 3; a roller group drive module 42 is installed axially inside the support seat 4, which includes a transmission rod 421, a transmission belt 422, a first bearing roller 423, a second bearing roller 424, roller body auxiliary teeth 425, and a reversing transmission gear 426; a transmission rod 421 is axially mounted on the bottom of the support seat 4, and a toothed protrusion 4211 is integrally formed in the middle of the transmission rod 421 and exposed on the lower surface of the support seat 4; transmission belts 422 are arranged on the left and right sides of the transmission rod 421 and are connected to the first bearing roller 423 for transmission; the first bearing roller 423... The outer circumference of the second bearing roller 424 is covered with a rubber outer layer 427 to increase the friction coefficient of the contact surface; the side of the feeding groove 33 on the roller pressing moving seat 3 is provided with a limiting protrusion 35. The limiting protrusion 35 has a gradually changing height structure. The height of the limiting protrusion 35 is the largest at the middle position of the feeding groove 33. The height gradually decreases from the middle to both sides until it returns to zero at the end of the groove. The support surface 42831 of the bottom surface of the sliding base 4283 can form a rigid hard contact with the top surface of the limiting protrusion 35. When the support seat 4 slides to the middle position, the sliding base 4283 abuts against the highest section of the limiting protrusion 35, lifting the moving support roller 4282 to a high position to achieve stable lateral support for the moving shaft 32.

[0048] Detailed working process of the carbon fiber coiling machine for badminton racket shaft: When the equipment is in the initial standby state, the roller pressing moving seat 3 is stopped on the side close to the operating platform base 2, the coiling pressing block 12 is kept in the raised state, the support seat 4 is stopped on the side of the feeding trough 33, the pitch adjustment cylinder 321 is in the extended state, the fixed shaft 31 and the moving shaft 32 maintain the working distance, the power transmission component 5 and the drive rack 15 are separated from each other, the top pressing component 6, the outer auxiliary support component 428, and the roller group drive module 42 are all in a static standby state, and there is no mutual interference between the moving parts of the whole machine; First, workpiece pretreatment and loading are carried out. The operator completes the bonding operation between the core and the carbon fiber prepreg on the operating platform base 2. The core is limited by the groove structure of the operating platform base 2. During operation, the core is placed stably in the groove. Then, a rectangular carbon fiber prepreg is taken and the carbon cloth side is attached to the outer wall of the core. The groove can effectively prevent the core from sliding and shifting, and ensure that the carbon cloth is bonded in a neat position. After the carbon cloth and the core are firmly bonded, the operator moves the core and the carbon fiber prepreg to the roller pressing moving seat 3 and places them stably between the contact position of the fixed shaft 31 and the moving shaft 32 to complete the workpiece placement. After the workpiece is placed in place, the equipment officially starts the rolling operation process. The main drive component 14 on the bearing base 1 starts to operate, and the drive screw 141 outputs power and drives the entire rolling moving seat 3 to slide linearly along the load-bearing guide rail 11. During the forward sliding of the rolling moving seat 3, the cylinder drive component 121 moves synchronously, driving the rolling pressing block 12 to move vertically downward until the lower end face of the rolling pressing block 12 is pressed against the core and the outer carbon cloth surface. This equipment adopts a station linkage design. When the rolling pressing block 12 and the workpiece complete the pressing contact, the contact tooth 55 meshes with the drive rack 15 on the bearing base 1. The two sets of actions are completed synchronously, realizing the connection of the power link. After the power is engaged, the drive rack 15 drives the contact tooth 55 to rotate by the linear motion of the roller pressing moving seat 3. The rotational torque is transmitted through the transmission rod 54 and the transmission tooth 53 in sequence, and finally transmitted to the transition tooth 51. The transition tooth 51 meshes with the tooth groove protrusion 4211 at the bottom of the transmission rod 421, and the power is transmitted to the transmission rod 421. The transmission rod 421 then drives the first bearing roller 423 to rotate through the transmission belts 422 on both sides. The roller body auxiliary teeth 425 at both ends of the first bearing roller 423 cooperate with the reversing transmission gear 426 to perform reversing transmission, and then synchronously drive the second bearing roller 424 to operate. Both the outer circumferences of the first bearing roller 423 and the second bearing roller 424 are covered with a rubber outer layer 427. The outer surface of the rubber outer layer 427 directly contacts the fixed shaft 31 and the moving shaft 32 during the pressing process. When the first bearing roller 423 and the second bearing roller 424 rotate, the rubber outer layer 427 increases the friction coefficient of the contact surface, actively driving the fixed shaft 31 and the moving shaft 32 to rotate synchronously. During equipment operation, the circumferential rotational linear velocity of the fixed shaft 31 and the moving shaft 32 is strictly matched with the linear sliding speed and travel length of the roller pressing moving seat 3. The circumferential rotational stroke of the shaft body and the horizontal movement stroke of the equipment correspond to each other. Traditional equipment relies on the extrusion and friction of iron plates to drive the iron... The passive rotation of the carbon fiber core can easily cause slippage between the iron and iron contact surfaces, resulting in sluggish core rotation and uneven carbon fiber winding. By driving the fixed shaft 31 and the moving shaft 32 to rotate, the fixed shaft 31 and the moving shaft 32 are given active rotation driving force. At the same time, a rubber outer layer 427 is set on the outer circle of the bearing roller to increase the contact friction between the roller body and the shaft body, prevent the fixed shaft 31 and the moving shaft 32 from slipping, and ensure stable speed and uniform carbon fiber coating during the winding process. Meanwhile, the first bearing roller 423 and the second bearing roller 424 bear the main downward pressure load of the fixed shaft 31 and the moving shaft 32 from the bottom, effectively sharing the roller pressure applied by the winding pressure block 12 and avoiding bending deformation of the long span shaft body under pressure. Throughout the entire roll forming process, the outer auxiliary support assembly 428 continuously plays a role in lateral limiting and auxiliary bearing. The fixed support roller 4281 abuts against the outside of the fixed shaft 31, providing stable lateral support for the fixed shaft 31. The movable support roller 4282 abuts against the outside of the movable shaft 32, providing lateral constraint force for the movable shaft 32 and preventing lateral displacement of the fixed shaft 31 and the movable shaft 32 during rotation and sliding. When the roller pressing moving seat 3 completes the linear movement according to the set stroke, the carbon fiber prepreg is completely and evenly rolled onto the outside of the tube core, and the rolling process is officially completed. At this time, the main drive component 14 continues to operate, driving the roller pressing moving seat 3 to slide continuously until the material feeding groove 33 on the roller pressing moving seat 3 moves as a whole to directly above the material feeding end 71 of the material feeding track 7 of the bearing base 1. The size of the material feeding end 71 of the material feeding track 7 is adapted to the material feeding groove 33, which can ensure that the formed tube falls smoothly. After the roller pressing moving seat 3 is positioned, the cylinder drive assembly 121 reverses its movement, causing the rolling pressing block 12 to be lifted vertically upward, releasing the downward pressure load on the workpiece. After the downward pressure load is removed, the support spring 62 inside the top pressing assembly 6 releases its elastic force, pushing the top pressing plate 61 and the upper support bar 63 to push the fixed shaft 31 and the moving shaft 32 upward slightly, so that the fixed shaft 31 and the moving shaft 32 are lifted upward as a whole by one to two millimeters. This small lifting amount is within the equipment's fault tolerance range. Its core function is to allow the fixed shaft 31, the moving shaft 32 to be separated from the tangential contact state with the lower first bearing roller 423, the second bearing roller 424, and the side fixed support roller 4281 and the moving support roller 4282. If the shaft body is still in contact with the support rollers, hard friction will be generated when the support seat 4 slides laterally, which will aggravate the wear of the parts. The small lifting can effectively avoid this problem. After the shaft is lifted, the side sliding drive component 41 of the support seat 4 is started, the drive motor 411 drives the transmission screw 412 to rotate, and drives the support seat 4 to slide laterally along the transverse guide rail 34 to the side of the discharge chute 33. During the movement of the support seat 4, the tooth groove protrusion 4211 of the bottom transmission rod 421 gradually disengages from the transition tooth 51, and the power transmission link is disconnected. Because the limiting protrusion 35 on the side of the discharge trough 33 adopts a gradual structure with a high center and a gradually decreasing side, the bottom surface of the sliding base 4283 on the side of the support seat 4 is in rigid contact with the top surface of the limiting protrusion 35. As the support seat 4 moves to the side, the height of the limiting protrusion 35 contacted by the sliding base 4283 continuously decreases. Under the action of gravity, the sliding base 4283, together with the moving support roller 4282 above, slides obliquely downward along the sliding groove limiting post 43 on the support seat 4. When the support seat 4 moves to the outermost position of the discharge trough 33, the sliding base 4283 and the moving support roller 4282 slide to the bottom of the sliding groove limiting post 43. During the sliding process, the sliding base 4283 simultaneously squeezes the support plate 4284 and the square spring 4285 in the sliding groove 44, and relies on the elastic deformation of the square spring 4285 to achieve buffering and shock absorption. Subsequently, the symmetrically arranged pitch cylinders 321 retract synchronously, pulling the moving shaft 32 to move outward, increasing the center distance between the fixed shaft 31 and the moving shaft 32. After the distance is expanded, the unsupported molded carbon fiber tube falls from between the fixed shaft 31 and the moving shaft 32 by its own weight, falls into the inlet end 71 of the lower feeding track 7 through the feeding chute 33, and then slides out of the equipment from the outlet end 72 on the side of the bearing base 1 along the feeding track 7, completing the automatic feeding process. During the entire process of the equipment performing material feeding and mechanism operation, the operating platform base 2 is in an idle state, and the staff can simultaneously complete pre-treatment work such as placing new tube cores and bonding carbon fiber prepregs here, and each process can be carried out in parallel. After the workpiece is completely unloaded, the equipment enters the mechanism reset stage. First, the adjusting cylinder 321 extends, driving the moving shaft 32 towards the fixed shaft 31, gradually restoring the standard working distance. At this time, the moving support roller 4282 and the sliding base 4283 are at the bottom of the slide groove limit post 43, and have no contact with the moving shaft 32. Therefore, the repositioning process of the moving shaft 32 will not cause structural interference with the moving support roller 4282, and the operation is smooth and unobstructed. After the moving shaft 32 is reset to the position, the side sliding drive 41 rotates in the opposite direction, driving the support seat 4 to slide from the side of the discharge trough 33 towards the middle position. As the support seat 4 gradually moves towards the middle, the sliding base 4283 contacts the limit protrusion 35 with gradually increasing height in sequence. The sliding base 4283 is gradually lifted up, and at the same time, it drives the moving support roller 4282 to slide obliquely upward along the slide groove limit post 43. When the support seat 4 has completely moved to the middle working position of the discharge trough 33, the support surface 42831 of the sliding base 4283 abuts against the highest point of the limit protrusion 35, and the moving support roller 4282 synchronously rises back to the upper limit support position. During the process of the support seat 4 moving back to the middle position, the toothed protrusion 4211 at the bottom of the transmission rod 421 re-aligns with the transition tooth 51 to complete the docking. The contact positions of the toothed protrusion 4211 and the transition tooth 51 are all rounded and chamfered. With the help of the lateral buffer spring 52 on the side of the transition tooth 51, the alignment deviation can be automatically compensated and the meshing impact can be buffered to complete the power transmission link of the power transmission component 5. After the reset is completed, the main drive component 14 drives the roller pressing moving seat 3 to slide in the opposite direction and return to the initial position close to the operating platform base 2. At this time, the whole machine returns to the standby state. The staff places the pre-processed new workpiece between the fixed shaft 31 and the moving shaft 32, and the equipment can start the next round of rolling and unloading cycle operation.

[0049] The above description only outlines the basic principles and preferred embodiments of the present invention. Those skilled in the art can make many changes and modifications based on the above description, and these changes and modifications should fall within the protection scope of the present invention.

[0050] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A carbon fiber winding machine for badminton racket shafts, comprising a support base (1), characterized in that: The upper end face of the bearing base (1) is symmetrically arranged with a load-bearing guide rail (11). The load-bearing guide rail (11) is slidably mounted with an operating platform base (2) and a roller pressing moving seat (3). The roller pressing moving seat (3) can complete the back-and-forth sliding feed along the load-bearing guide rail (11). A rolling pressing block (12) is installed above the operating platform base (2). The rolling pressing block (12) is equipped with a cylinder drive assembly (121). The cylinder drive assembly (121) can drive the rolling pressing block (12) to press vertically downward, apply a roller pressing load to the workpiece to complete the carbon fiber tube rolling operation. The roller pressing moving seat (3) has a fixed shaft (31) and a moving shaft (32) arranged parallel to each other along the axial direction. The moving shaft (32) is equipped with a pitch adjustment cylinder (321). The pitch adjustment cylinder (321) adjusts the center distance between the fixed shaft (31) and the moving shaft (32) by telescopic movement. After the rolling process is completed, the pitch adjustment cylinder (321) retracts to increase the distance between the fixed shaft (31) and the moving shaft (32), and the formed carbon fiber tube can fall from between the two roller shafts. The roller pressing moving seat (3) has a through-type feeding groove (33) directly below the fixed shaft (31) and the moving shaft (32). The feeding groove (33) is equipped with a support seat (4) that can slide laterally left and right through the transverse guide rail (34). During the rolling operation, the support seat (4) slides to the middle of the feeding groove (33) to support the middle of the fixed shaft (31) and the moving shaft (32) and to counteract the bending deformation caused by the pressure on the long span roller shaft. During the unloading stage, the support seat (4) slides laterally to the side of the feeding groove (33) to make room for the unloading channel and avoid interference with the falling of the finished tube. The support base (4) is equipped with a roller drive module (42) along the axial direction inside. The roller drive module (42) includes a transmission rod (421), a transmission belt (422), a first bearing roller (423), a second bearing roller (424), a roller body auxiliary tooth (425), and a reversing transmission gear (426). The support base (4) is axially rotatably mounted with a first bearing roller (423) and a second bearing roller (424) spaced apart from each other. The first bearing roller (423) supports the fixed shaft (31) and the second bearing roller (424) supports the moving shaft (32) to provide zoned support for the downward load on the fixed shaft (31) and the moving shaft (32) under the pressure rolling condition. The first bearing roller (423) and the second bearing roller (424) are equipped with roller body auxiliary teeth (425) at both ends. The reversing transmission gear (426) is meshed between each roller body auxiliary tooth (425) and is used for reversing transmission.

2. The carbon fiber winding machine for badminton racket shafts according to claim 1, characterized in that: The inner side of the bearing base (1) is symmetrically provided with guide bases (13), which limit and guide the roller pressing moving seat (3). The bearing base (1) is equipped with a main drive assembly (14), which includes a drive screw (141). The drive screw (141) is connected to the roller pressing moving seat (3) in a transmission manner. A drive rack (15) is fixedly provided on one side of the upper surface of the bearing base (1).

3. A carbon fiber winding machine for badminton racket shafts according to claim 2, characterized in that: The adjustable cylinder (321) has a symmetrical arrangement on the left and right sides. The support base (4) is equipped with a side-sliding drive component (41). The side-sliding drive component (41) includes a drive motor (411) and a transmission screw (412). The output end of the drive motor (411) is connected to the transmission screw (412) for transmission. The transmission screw (412) is threadedly connected to the support base (4).

4. A carbon fiber winding machine for badminton racket shafts according to claim 3, characterized in that: The bottom of the support base (4) is equipped with a transmission rod (421) along the axial direction. The transmission rod (421) has an integrally formed toothed protrusion (4211) in the middle. The toothed protrusion (4211) is exposed on the lower surface of the support base (4). The transmission rod (421) is provided with a transmission belt (422) on the left and right sides. The transmission belt (422) is connected to the first bearing roller (423) in a transmission connection. The outer surfaces of the first bearing roller (423) and the second bearing roller (424) are covered with a rubber outer layer (427), which is used to increase the friction coefficient of the roller contact surface.

5. A carbon fiber winding machine for badminton racket shafts according to claim 4, characterized in that: An outer auxiliary support assembly (428) is axially mounted above the support base (4). The outer auxiliary support assembly (428) includes a fixed support roller (4281) and a movable support roller (4282). The fixed support roller (4281) is axially fixedly installed on the upper part of the support base (4). The fixed support roller (4281) forms a lateral limiting bearing support for the fixed shaft (31). The bottom of the movable support roller (4282) is fixedly provided with a sliding base (4283), and a corresponding groove limiting post (43) is provided on the support base (4). The sliding base (4283) and the groove limiting post (43) slide together, so that the movable support roller (4282) as a whole can make tilting, lifting and sliding movements along the groove limiting post (43). When the movable support roller (4282) slides to the top position of the slide groove limiting post (43), the movable support roller (4282) forms a lateral abutment support for the movable shaft (32). When the movable shaft (32) performs the adjustment and retraction action, the movable support roller (4282) can slide down along the slide groove limiting post (43) to avoid it, thus eliminating structural interference during the adjustment and movement of the movable shaft (32). The support base (4) has a sliding groove (44) inside corresponding to the sliding groove limiting post (43). A support plate (4284) is slidably assembled inside the sliding groove (44). A square spring (4285) is assembled between the support plate (4284) and the bottom of the groove of the support base (4). When the moving support roller (4282) slides down to avoid the obstacle, it squeezes the support plate (4284) and the square spring (4285). The sliding buffer is achieved by the elastic deformation of the square spring (4285).

6. A carbon fiber winding machine for badminton racket shafts according to claim 5, characterized in that: The bottom of the support base (4) is provided with a through support opening (45) corresponding to the movement area of ​​the sliding base (4283). The bottom surface of the sliding base (4283) is provided with a support surface (42831). The support surface (42831) of the sliding base (4283) is exposed outside the support opening (45). The side of the feeding groove (33) on the roller pressing moving seat (3) is provided with a limiting protrusion (35). The limiting protrusion (35) is a gradually changing height structure. The height of the limiting protrusion (35) is the largest in the middle area of ​​the feeding groove (33), and the height of the limiting protrusion (35) gradually decreases from the middle to the side until the height of one end of the feeding groove (33) is zero. The support surface (42831) and the top surface of the limiting protrusion (35) form a rigid hard contact fit. When the support base (4) slides to the middle working position of the feeding trough (33), the support surface (42831) of the sliding base (4283) abuts against the highest section of the limiting protrusion (35), so that the sliding base (4283) is lifted to the extreme high position. At this time, the moving support roller (4282) is kept in the upper limit support position, forming a stable rigid lateral support for the moving shaft (32).

7. A carbon fiber winding machine for badminton racket shafts according to claim 6, characterized in that: The inner wall of the discharge trough (33) is provided with a power synchronization groove (36) arranged in the transverse direction. A power transmission assembly (5) is rotatably assembled in the power synchronization groove (36). The power transmission assembly (5) includes a transition tooth (51), a lateral buffer spring (52), a transmission tooth (53), a transmission rod (54), and a contact tooth (55). The transition tooth (51) has a lateral reserved sliding clearance, and a lateral buffer spring (52) is installed on the side of the transition tooth (51). The lateral buffer spring (52) provides lateral buffer displacement margin for the transition tooth (51). When the support seat (4) slides to the middle working position of the discharge trough (33) and performs the roller pressing support operation, the transition tooth (51) meshes with the tooth groove protrusion (4211) integrally formed in the middle of the transmission rod (421). The transmission tooth (53) and the transition tooth (51) are meshed and driven together. The transmission tooth (53) is fixedly inserted through the transmission rod (54) along the axial direction. One end of the transmission rod (54) extends horizontally outward. The outward end of the transmission rod (54) is fixedly fitted with a contact tooth (55). The contact tooth (55) meshes with the drive rack (15) arranged on the bearing base (1). The length and installation position of the drive rack (15) meet the following limitations: the contact tooth (55) only engages with the drive rack (15) when the cylinder drive assembly (121) drives the rolling block (12) to move down and press the badminton racket tube blank and formally starts the rolling process. The engagement start time of the contact tooth (55) and the drive rack (15) is synchronized with the pressing contact time of the rolling block (12) and the tube blank.

8. A carbon fiber winding machine for badminton racket shafts according to claim 1, characterized in that: The material discharge trough (33) is also symmetrically provided with top pressing components (6) on both sides. The top pressing components (6) include a top pressing plate (61), a support spring (62) and several support bars (63). The support spring (62) is installed at the bottom of the top pressure plate (61) and applies an upward elastic force to the top pressure plate (61). The plurality of support bars (63) are rotatably installed on the upper surface of the top pressure plate (61) and respectively contact the outer circular surfaces of the fixed shaft (31) and the moving shaft (32). The top pressure assembly (6) is used to provide vertical support force to the fixed shaft (31) and the moving shaft (32). A feeding track (7) is provided on the upper surface of the bearing base (1) and in the area below the corresponding roller pressing moving seat (3). The feeding end (71) of the feeding track (7) is opened on the upper surface of the bearing base (1), and the discharging end (72) of the feeding track (7) extends through to the side of the bearing base (1).

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