A fiber tendon winding device

Abstract

The present application relates to the technical field of fiber tendon production, and particularly relates to a fiber tendon winding device, wherein the fiber tendon winding device comprises a winding frame body and a rotating assembly, the rotating assembly is rotatably installed on the winding frame body; the rotating assembly comprises at least one set of winding assembly, the winding assembly is installed on the rotating assembly and rotates synchronously with the rotating assembly; the winding assembly comprises a winding belt fixing disc, a winding belt roll and a clamping mechanism, the clamping mechanism is integrally arranged on the winding belt fixing disc, the clamping mechanism has an expansion part for radially expanding and tightening a central hole of the winding belt roll and a gland part for applying axial compression force to the winding belt roll, and the problem that the existing winding device causes uneven winding pitch due to unstable tension control, causes certain bending of the fiber tendon along the longitudinal direction, and reduces the longitudinal tensile strength mechanical property of the fiber tendon is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of fiber reinforced polymer (FRP) bar production, and particularly relates to a fiber reinforced polymer (FRP) bar winding device. BACKGROUND

[0002] The fiber reinforced polymer (FRP) bar is a composite material bar made of high-strength continuous fibers such as glass fibers and basalt fibers as reinforcing materials and resin as a matrix through pultrusion and winding processes. Compared with traditional metal steel bars, the fiber reinforced polymer (FRP) bar has the advantages of light weight, high strength, corrosion resistance, and non-magnetic properties, and has gradually become an important alternative material in harsh environments such as civil engineering, marine structures, and bridge reinforcement. In order to enhance the bonding performance with concrete, the surface of the fiber reinforced polymer (FRP) bar usually needs to be processed into a regular thread structure, which can be realized by spirally winding a polymer tape (winding tape) on the surface of the fiber bundle after impregnating the resin. However, the existing winding process and equipment face significant technical bottlenecks in actual production. The mainstream winding device usually uses simple mechanical friction or counterweight methods to control the unwinding tension of the winding tape, which cannot respond to the differences in interlayer bonding force of the winding tape parent roll in real time, resulting in frequent and uncontrollable fluctuations in winding tension. Unstable tension will directly cause uneven winding pitch and uneven thread depth, which not only affects the consistency of the product appearance, but also weakens the final mechanical properties of the fiber reinforced polymer (FRP) bar due to uneven stress distribution. Furthermore, the existing winding device often ignores the effective axial constraint and protection of the flexible uncured fiber bundle in the structural design. During the spiral wrapping process of the winding tape, the rotating winding head will exert a continuous circumferential force on the fiber bundle, which will easily cause the fiber bundle to twist or bend locally if there is no reliable longitudinal guidance and internal support. This geometric defect and internal stress introduced in the early stage of forming will be retained or even amplified during the subsequent curing process, seriously reducing the longitudinal straightness and axial tensile strength of the finished bar.

[0003] Therefore, the present application provides a fiber reinforced polymer (FRP) bar winding device to solve the above technical problems. SUMMARY

[0004] The present application aims to provide a fiber reinforced polymer (FRP) bar winding device to solve the problem of uneven winding pitch caused by unstable tension control in the existing winding device, which causes the fiber reinforced polymer (FRP) bar to bend in the longitudinal direction and reduces the longitudinal tensile strength of the fiber reinforced polymer (FRP) bar.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present application is as follows:

[0006] A fiber reinforced polymer (FRP) bar winding device, comprising a winding frame body and a rotating assembly, wherein the rotating assembly is rotatably mounted on the winding frame body.

[0007] The rotating assembly comprises at least one winding assembly which is installed on the rotating assembly and rotates synchronously with the rotating assembly.

[0008] The winding assembly comprises a winding belt fixing disc, a winding belt roll and a clamping mechanism which is integrally arranged on the winding belt fixing disc.

[0009] Further, the rotating assembly comprises a rotating shaft, a rotating support and a driving member, the rotating shaft is rotatably installed on the winding frame body, the rotating support is fixedly connected with the rotating shaft, and the driving member is installed on the winding frame body and used to drive the rotating shaft to rotate.

[0010] The rotating shaft is a hollow structure with open ends, and a winding hole is formed in the middle position of the rotating shaft.

[0011] Further, the rotating assembly comprises a rotating shaft, a rotating support and a driving member, the rotating shaft is rotatably installed on the winding frame body, the rotating support is fixedly connected with the rotating shaft, and the driving member is installed on the winding frame body and used to drive the rotating shaft to rotate.

[0012] Further, the expanding part comprises a first screw rod which is fixedly installed on the axis of the winding belt fixing disc, a first ring sleeve is sleeved on the first screw rod, and a plurality of first expanding claws are arranged around the first ring sleeve.

[0013] A fixed ring is fixedly arranged on the winding belt fixing disc, a plurality of first sliding bars are slidably connected in the fixed ring, one end of the first sliding bar is connected with the corresponding first expanding claw, the other end of the first sliding bar is hingedly connected with a first connecting plate, and the free end of the first connecting plate is hingedly connected with the first ring sleeve.

[0014] The first screw rod is threadedly connected with a first locking sleeve, and the first locking sleeve can drive the first ring sleeve to move.

[0015] Further, the expanding part comprises a first screw rod which is fixedly installed on the axis of the winding belt fixing disc, a first ring sleeve is sleeved on the first screw rod, and a plurality of first expanding claws are arranged around the first ring sleeve.

[0016] Further, the winding belt fixing disc is rotationally installed on the rotating support, and a torque motor is fixedly arranged on the other side of the rotating support, and an output shaft of the torque motor penetrates the rotating support and is fixedly connected with the winding belt fixing disc coaxially.

[0017] Further, the number of the winding assemblies is two, and the two winding assemblies are installed on the rotating support.

[0018] Further, the expansion part comprises a second screw rod fixedly installed on the axis of the winding belt fixing disc, a second ring sleeve is sleeved on the second screw rod, the second ring sleeve can move up and down along the axial direction of the second screw rod, and a plurality of second expansion claws are arranged around the second ring sleeve.

[0019] A second sliding strip is arranged between the second expansion claw and the second ring sleeve, one end of the second sliding strip is connected with the corresponding second expansion claw, the other end of the second sliding strip is hingedly connected with a second connecting piece, and the free end of the second connecting piece is hingedly connected with the second ring sleeve; a plurality of tension springs are arranged between the second sliding strip and the second connecting piece, the free end of the tension spring is connected with the second screw rod, and the tension spring has a tendency to drive the second expansion claw to retract;

[0020] A second locking sleeve is slidably connected on the second screw rod, and the second locking sleeve can drive the second ring sleeve to move.

[0021] Further, the gland part comprises a winding belt gland, a gland piece is formed on the second locking sleeve, the bottom of the gland piece abuts against the winding belt gland, and a connecting rope is arranged between the second locking sleeve and the second expansion claw.

[0022] Further, the winding belt fixing disc is rotationally installed on the rotating support, and a torque motor is fixedly arranged on the other side of the rotating support, and an output shaft of the torque motor penetrates the rotating support and is fixedly connected with the winding belt fixing disc coaxially.

[0023] The beneficial effects of the present application are as follows:

[0024] The application can compensate the tension fluctuation caused by the difference of the interlayer bonding force of the winding belt in real time and dynamically, ensure that the winding belt keeps stable tension during the whole unwinding process, and effectively solve the problem of uneven pitch and fluctuation of thread depth caused by uneven tension of the traditional winding device; at the same time, the cooperation of the expansion part and the gland part in the clamping mechanism not only realizes the radial non-slip locking and axial deformation correction of the winding belt coil, but also prevents the twisting and deformation of the fiber bundle assembly in the winding process through the axial constraint of the front and rear inner die tubes on the fiber bundle assembly, thereby significantly improving the uniformity of the winding thread, the longitudinal straightness of the fiber muscle and the stability of the axial mechanical properties.

[0025] The mode of active control of the torque motor combined with manual / mechanical clamping is suitable for the constant tension winding scene of high-precision and continuous production; another mode utilizes the rotation centrifugal force to drive the expansion gland linkage mechanism, realizes the automatic clamping, flattening and tension adjustment based on the rotation speed of the winding belt coil through a pure mechanical mode, has compact structure, fast response and controllable cost, and is particularly suitable for the production environment with high requirements on roll changing efficiency and relatively loose tension control precision; both modes support the symmetrical arrangement of double winding assemblies, can realize continuous production without stopping, and can improve the dynamic balance of the rotating system, embody the comprehensive advantages of the application in improving production efficiency, reducing equipment vibration and prolonging service life, and provide a flexible, reliable and expandable equipment solution for the fiber muscle winding process.

[0026] Other advantages, objects, and features of the present application will be apparent to those skilled in the art from the following specification, in some degree of generality, and to those who practice the application in the arts based on the study of the following, or can be taught from the practice of the application. The objects and other advantages of the present application can be achieved and obtained by the following specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the fiber muscle winding device in one direction of the application;

[0028] Figure 2 It is a schematic diagram of the overall structure of the fiber muscle winding device in another direction of the application;

[0029] Figure 3 It is a schematic diagram of the cross-sectional structure of the two winding assemblies in the fiber muscle winding device of the application;

[0030] Figure 4 It is a schematic diagram of the structure of one of the winding assemblies in the fiber muscle winding device of the application installed on the rotating shaft;

[0031] Figure 5Structure diagram of the winding assembly in the fiber tendon winding device of the present application;

[0032] Figure 6 Structure diagram of the winding assembly in the fiber tendon winding device of the present application;

[0033] Figure 7 Structure diagram of the winding assembly in the fiber tendon winding device of the present application;

[0034] Figure 8 Structure diagram of the winding assembly in the fiber tendon winding device of the present application;

[0035] Figure 9 Structure diagram of the winding assembly in the fiber tendon winding device of the present application;

[0036] Figure 10 Structure diagram of the winding assembly in the fiber tendon winding device of the present application.

[0037] Wherein, the winding frame body A1, the rotating assembly A2, the rotating shaft A21, the rotating support A22, the driving piece A23, the winding hole A24, the winding assembly A3, the winding belt fixing disc A31, the winding belt roll A32, the clamping mechanism A33, the expansion part A4, the first screw rod A41a, the first ring sleeve A42a, the first expansion claw A43a, the fixing ring A44a, the first sliding bar A45a, the first connecting sheet A46a, the first locking sleeve A47a, the second screw rod A41b, the second ring sleeve A42b, the second expansion claw A43b, the second sliding bar A45b, the second connecting sheet A46b, the tension spring A44b, the second locking sleeve A47b, the gland part A5, the winding belt gland A51, the gland connecting sleeve A52, the gland piece A521, the connecting rope A53, the inner mold pipe assembly A6, the front inner mold pipe A61, the rear inner mold pipe A62, the torque motor A7, the stepping motor A8. DETAILED DESCRIPTION

[0038] The present application will be described in detail with reference to the attached drawings and preferred embodiments, and other advantages and effects of the present application can be easily understood by those skilled in the art from the contents disclosed in the present specification. The present application can also be implemented or applied by other different specific embodiments, and each detail in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present application. It should be understood that the preferred embodiments are only for illustrating the present application, and are not intended to limit the protection scope of the present application.

[0039] It should be noted that the drawings in the following embodiments are only schematically illustrating the basic concept of the present application, and only the components related to the present application are shown in the drawings, rather than being drawn according to the number, shape and size of the components in actual implementation. The shape, number and ratio of each component in actual implementation can be arbitrarily changed, and the layout pattern of the components can be more complex.

[0040] The present embodiment provides a fiber tendon winding device, as shown in the drawings, comprising a winding frame body A1 and a rotating assembly A2, the rotating assembly A2 is rotatably installed on the winding frame body A1; the rotating assembly A2 comprises at least one winding assembly A3, the winding assembly A3 is installed on the rotating assembly A2 and rotates synchronously with the rotating assembly A2; the winding assembly A3 comprises a winding belt fixing disc A31, a winding belt roll A32 and a clamping mechanism A33, the winding belt roll A32 has a central hole, the clamping mechanism A33 is integrally arranged on the winding belt fixing disc A31, the clamping mechanism A33 has an expansion part A4 for radially expanding the central hole of the winding belt roll A32 and a gland part A5 for applying axial compression force to the winding belt roll A32. Figures 1 to 10

[0041] In the present embodiment, the winding belt roll A32 is sleeved on the winding belt fixing disc A31, the clamping mechanism A33 is operated to radially expand the expansion part A4, so as to expand and lock the central hole of the winding belt roll A32, and at the same time, the axial compression force is applied to the end face of the winding belt roll A32 by the gland part A5 to correct the warping deformation; during the winding process, the rotating assembly A2 drives the winding assembly A3 installed thereon to rotate around the axis of the fiber bundle assembly, so that the winding belt is unwound from the fixed winding belt roll A32 and wound on the surface of the fiber bundle assembly in a set spiral track, thereby forming a thread structure; in this process, the cooperation of the expansion part A4 and the gland part A5 ensures the stability of the clamping of the winding belt roll A32 under high-speed rotation, effectively restricts the axial and radial deformation of the winding belt roll A32, provides a basis for the smooth and uniform release of the winding belt, and further ensures the consistency of the winding pitch and the stability of the winding quality.

[0042] As a preferred embodiment, the rotating assembly A2 comprises a rotating shaft A21, a rotating support A22 and a driving member A23, the rotating shaft A21 is rotatably installed on the winding frame body A1, the rotating support A22 is fixedly connected with the rotating shaft A21, and the driving member A23 is installed on the winding frame body A1 and used to drive the rotating shaft A21 to rotate, the driving member A23 is a driving motor, and the driving motor drives the rotating shaft A21 to rotate through the form of belt connection; the rotating shaft A21 is a hollow structure with open ends, and a winding hole A24 is formed at the middle position of the rotating shaft A21.

[0043] ​The driving motor drives the rotating shaft A21 to rotate through the belt connection, and the rotating support A22 fixedly connected with the rotating shaft A21 rotates synchronously. After the winding tape A32 is locked on the winding tape fixing disc A31 on the rotating support A22 through the clamping mechanism A33, the winding tape is pulled out from the winding tape roll A32 and passes through the winding hole A24 in the middle of the rotating shaft A21. At the same time, the fiber bundle assembly of the pre-impregnated resin continuously passes through the openings at both ends of the rotating shaft A21 and the hollow interior. Under the continuous rotation driving of the rotating shaft A21 and the rotating support A22, the winding tape is stably output through the winding hole A24 and uniformly and continuously wound on the surface of the fiber bundle assembly passing through in the set spiral track. The fiber bundle assembly wrapped with the winding tape continues to be forwarded into the subsequent heating and curing stage. After the resin is cured and shaped, the winding tape is stripped through the unwinding device, and finally the fiber bar product with clear and regular spiral threads on the surface is obtained.

[0044] As a preferred embodiment, it further comprises an inner mold pipe assembly A6, which comprises a front inner mold pipe A61 and a rear inner mold pipe A62 arranged on the fiber bundle assembly running path. The front inner mold pipe A61 and the rear inner mold pipe A62 are arranged in the rotating shaft A21 and are fixed with the winding frame body A1 respectively. The front inner mold pipe A61 and the rear inner mold pipe A62 are both hollow structures, which are used to provide axial support for the fiber bundle assembly. The area between the front inner mold pipe A61 and the rear inner mold pipe A62 constitutes a working area for the winding tape to wind.

[0045] In the winding process, the fiber bundle assembly passes through the hollow passages of the front inner mold pipe A61, the working area and the rear inner mold pipe A62 in sequence. The front inner mold pipe A61 and the rear inner mold pipe A62 are fixedly connected with the winding frame body A1 through the fixed support. When the winding tape is spirally wound on the surface of the fiber bundle assembly in the working area between the front inner mold pipe A61 and the rear inner mold pipe A62, the front inner mold pipe A61 and the rear inner mold pipe A62 form axial constraint on the fiber bundle assembly, preventing the whole torsion or local bending of the fiber bundle assembly due to the circumferential tension of the winding tape or the torsion of the rotating support A22. At the same time, the front inner mold pipe A61 and the rear inner mold pipe A62 limit the actual winding length of the winding tape within the limited distance between them, shorten the force transmission path between the winding tape and the fiber bundle assembly, and reduce the additional deformation risk caused by the uneven distribution of the winding tape tension along the fiber bundle axis, thereby ensuring the stability of the winding process, the regularity of the thread forming, and finally guaranteeing the straightness and axial mechanical properties of the fiber bar product.

[0046] Embodiment one

[0047] As Figures 4 to 9As shown, the expansion part A4 includes a first screw A41a fixedly installed on the axis of the winding belt fixing disc A31, a first ring A42a is sleeved on the first screw A41a, and a plurality of first expansion claws A43a are arranged around the first ring A42a;

[0048] As shown in the drawings, Figures 6 to 9 As shown, a fixed ring A44a is fixedly arranged on the winding belt fixing disc A31, a plurality of first sliding bars A45a are slidably connected in the fixed ring A44a, one end of each first sliding bar A45a is connected with a corresponding first expansion claw A43a, the other end of each first sliding bar A45a is hingedly connected with a first connecting piece A46a, and the end of each first connecting piece A46a is hingedly connected with the first ring A42a; a first locking sleeve A47a is threadedly connected on the first screw A41a, and the first locking sleeve A47a can drive the first ring A42a to move.

[0049] After the winding belt coiled material A32 is sleeved outside the fixed ring A44a, the first locking sleeve A47a is screwed to move axially downward along the threads of the first screw A41a; the downward movement of the first locking sleeve A47a pushes the first ring A42a in contact with it to move downward synchronously, the downward movement of the first ring A42a is transmitted through the plurality of first connecting pieces A46a hingedly connected thereto, each first connecting piece A46a pulls the first sliding bar A45a hingedly connected thereto to slide outward along the radial direction of the fixed ring A44a, the radial movement of the first sliding bar A45a drives the first expansion claw A43a connected thereto to expand outward in the radial direction of the winding belt fixing disc A31; as the first locking sleeve A47a continues to be screwed downward, the knurled structure on the outer surface of the first expansion claw A43a gradually tightens and embeds into the inner wall of the central hole of the winding belt coiled material A32, and reliable locking and circumferential positioning of the entire winding belt coiled material A32 are achieved through the increased radial friction force, thereby ensuring that the winding belt coiled material A32 does not slide or eccentrically vibrate during high-speed rotation and winding.

[0050] The gland part A5 includes a winding belt gland A51 sleeved outside the fixed ring A44a, the winding belt gland A51 is located on the upper surface of the winding belt coiled material A32, and a gland connecting sleeve A52 is arranged on the winding belt gland A51 and is threadedly connected on the first screw A41a.

[0051] After the winding band coil A32 is locked radially by the expansion part A4, the winding band cover A51 is sleeved outside the fixed ring A44a and covers the upper end surface of the winding band coil A32; the cover connecting sleeve A52 connected with the first screw A41a is rotated and screwed downward along the first screw A41a, the lower end surface of the cover connecting sleeve A52 is pressed against the upper surface of the winding band cover A51, and the winding band cover A51 is pushed to move downward stably, and the lower surface of the winding band cover A51 is pressed against the upper end surface of the winding band coil A32 to apply adjustable and continuous axial pressure; the axial pressure effectively corrects the deformation of the winding band coil A32, such as end surface warping and interlayer loosening, to ensure that the winding band coil A32 remains flat and stable during high-speed rotation and unwinding, thereby preventing the winding band from releasing tension fluctuation caused by the deformation of the winding band coil A32, and further ensuring the uniformity and consistency of the winding pitch.

[0052] As a preferred embodiment, the winding band fixing disc A31 is rotatably installed on the rotating support A22, as shown in the figure, the other side of the rotating support A22 is fixedly provided with a torque motor A7, and the output shaft of the torque motor A7 is coaxially fixedly connected with the winding band fixing disc A31 through the rotating support A22. Figure 4 The output shaft of the torque motor A7 is coaxially fixedly connected with the winding band fixing disc A31, the output torque of the torque motor A7 is preset to a constant value corresponding to the required winding tension through the controller; during winding, when the interlayer combination of the winding band coil A32 is tight and the unwinding resistance is normal, the winding tension can be maintained within the set range, and the torque motor A7 does not actively act; when the interlayer combination of the winding band coil A32 is loose, the winding tension will instantaneously decrease, and the resistance torque of the winding band to the fixing disc is lower than the preset output torque of the torque motor A7; the torque motor A7 automatically rotates in the opposite direction along the winding direction according to its torque control characteristics, and actively drives the winding band fixing disc A31 to tighten the loose winding band; through this dynamic adjustment, the torque motor A7 continuously compensates for the tension fluctuation caused by uneven material, so that the winding band always maintains a basically constant tensile tension during unwinding, thereby ensuring that the winding pitch on the surface of the fiber bundle assembly is uniform and consistent, and effectively avoiding the phenomenon of uneven thread density caused by sudden tension drop.

[0053] It should be noted that in the preferred embodiment of the present embodiment, the torque motor A7 used is a type of motor widely used in the art and mature in technology, and its working principle and output characteristics are clearly described in the prior art (such as patent documents, motor product manuals, and automation control textbooks). The torque motor A7 can set and maintain a constant output torque through an external controller. When the load torque is lower than the set value, the motor will actively rotate until the load torque and the set torque are balanced, thereby realizing closed-loop dynamic control of the winding belt tension. This torque motor A7, through its inherent torque-speed characteristic curve and feedback control circuit, can automatically identify the tension fluctuations caused by the change of the interlayer bonding force of the winding belt and adjust the rotation direction and speed in real time to compensate for the tension deviation. Therefore, the torque motor A7 is used as a constant tension control execution element in the present embodiment, which is a reasonable use of the inherent function of a known component. Its implementation and technical effects are clear and explicit to those skilled in the art and can be achieved, in line with the requirements of the Patent Law on the clarity of claims.

[0054] The expansion part A4 of the present embodiment drives the first expansion claw A43a to expand radially through the first locking sleeve A47a, so that the knurled surface outside the first expansion claw A43a tightly fits the inner circle of the winding belt material A32, ensuring the circumferential non-slip connection between the winding belt material A32 and the winding belt fixing disc A31, and eliminating the sudden change in unwinding resistance caused by loose clamping. At the same time, the gland part A5 applies an axial pressing force to the end surface of the winding belt material A32 by pressing the winding belt gland A51 through the gland connecting sleeve A52, effectively correcting the warping and interlayer relaxation of the winding belt material A32, and eliminating the release jamming and tension jump caused by the deformation of the winding belt material A32. Both of them provide a stable mechanical basis for the constant tension control of the torque motor A7, allowing the winding belt to be released uniformly and smoothly, thereby ensuring the consistency of the winding pitch and the stability of the thread depth, and reducing the local circumferential impact on the fiber bundle caused by uneven release of the winding belt. Combined with the axial restraint of the front inner mold pipe A61 and the rear inner mold pipe A62, the fiber bundle assembly is inhibited from twisting, and the longitudinal straightness and axial mechanical properties of the fiber muscle formed subsequently are improved.

[0055] As a preferred embodiment, the number of winding assemblies A3 is two, and the two winding assemblies A3 are installed on the rotating support A22. The two winding assemblies A3 are symmetrically installed on the rotating support A22, forming a continuous production mode of one active and one standby or a cooperative balanced operation mechanism in actual work. When the winding strip coil A32 on one of the winding assemblies A3 is about to be exhausted, the standby winding assembly A3 can be clamped with a new winding strip coil A32 and pre-tightened in advance. When switching is needed, the winding strip is only transferred from the winding strip coil A32 about to be exhausted to the new winding strip coil A32 and the end is fixed, so that uninterrupted continuous winding can be realized, the production downtime is significantly reduced, and the vibration and dynamic load generated by the mass eccentricity of the rotating system are effectively reduced to some extent, so that the rotating support A22 runs more stably under the driving of the torque motor A7, the stability of the winding process and the consistency of the thread forming are further improved, and the service life of the device is prolonged.

[0056] Embodiment two

[0057] In this embodiment, as shown in Figure 10 the expansion part A4 includes a second screw A41b fixedly installed on the axis of the winding strip fixing disc A31, a second ring A42b is sleeved on the second screw A41b, the second ring A42b can move up and down along the axial direction of the second screw A41b, and a plurality of second expansion claws A43b are arranged around the second ring A42b; a second sliding strip A45b is arranged between the second expansion claw A43b and the second ring A42b, one end of the second sliding strip A45b is connected with the corresponding second expansion claw A43b, the other end of the second sliding strip A45b is hingedly connected with a second connecting piece A46b, and the free end of the second connecting piece A46b is hingedly connected with the second ring A42b; a plurality of tension springs A44b are arranged between the second sliding strip A45b and the second connecting piece A46b, the free end of the tension spring A44b is connected with the second screw A41b, and the tension spring A44b has a tendency to retract the second expansion claw A43b; a second locking sleeve A47b is slidably connected on the second screw A41b, and the second locking sleeve A47b can drive the second ring A42b to move. The gland part A5 includes a winding strip gland A51, a gland part A521 is formed on the second locking sleeve A47b, the bottom of the gland part A521 abuts against the winding strip gland A51, and a connecting rope A53 is arranged between the second locking sleeve A47b and the second expansion claw A43b. The winding strip fixing disc A31 is fixedly installed on the rotating support A22, a step motor A8 is fixedly arranged on the other side of the rotating support A22, the output shaft of the step motor A8 penetrates the rotating support A22 and the winding strip fixing disc A31 and is fixedly connected with the second screw A41b coaxially.

[0058] The step motor A8 is started, drives the second screw A41b fixedly connected with the output shaft of the step motor A8 to rotate, under the action of the centrifugal force generated by the rotation, the second connecting piece A46b pushes the second sliding bar A45b to slide outward along the radial direction of the winding belt fixing disc A31, drives the connected second expansion claw A43b to expand outward against the radial contraction force of the tension spring A44b, so that the knurled structure on the outer surface of the second expansion claw A43b presses the inner wall of the central hole of the winding belt coil A32, realizes the radial locking of the winding belt coil A32, at the same time, when the second expansion claw A43b expands outward, the second locking sleeve A47b is pulled along the axial direction downward by the connecting rope A53, drives the second locking sleeve A47b to move downward, the downward movement of the second locking sleeve A47b drives the grommet A521 to move downward synchronously, the grommet A521 presses the winding belt grommet A51, and then applies an axial pressing force to the upper end surface of the winding belt coil A32; at the same time, the knurled structure on the outer surface of the second expansion claw A43b expands radially and is pressed into the inner wall of the central hole of the winding belt coil A32, realizing radial locking, realizing the linkage control of radial expansion and axial pressing. Only a single power input (such as the centrifugal force of the step motor A8) is needed to simultaneously complete the center hole locking and end surface flattening of the winding belt coil A32, which significantly simplifies the steps and the number of driving elements required for clamping operation, improves the winding efficiency and reduces the complexity of the equipment; the linkage design ensures that the radial fixation and axial pressing of the winding belt coil A32 are completely synchronized in time sequence and coordinated in force, avoiding the problems of coil deflection, local stress concentration or uneven clamping caused by step-by-step operation, thereby ensuring the dynamic stability and concentricity of the coil during high-speed rotation and unwinding, providing a uniform and stable tension basis for the subsequent winding process; at the same time, the integrated linkage structure can realize automatic and rapid release through the reset action of the tension spring A44b when the winding pad coil is disassembled, further improving the convenience and production continuity of the operation, and is especially suitable for production scenes with relatively loose tension accuracy requirements, high-efficiency assembly and disassembly and cost optimization.

[0059] The above embodiments are only preferred embodiments for fully illustrating the present application, and the protection scope of the present application is not limited thereto. Any equivalent replacement or transformation made by those skilled in the art based on the present application is within the protection scope of the present application.

Claims

1. A fiber reinforcement winding device, characterized in that, include: A winding frame (A1) and a rotating assembly (A2), wherein the rotating assembly (A2) is rotatably mounted on the winding frame (A1); The rotating assembly (A2) includes at least one winding assembly (A3), which is mounted on the rotating assembly (A2) and rotates synchronously with the rotating assembly (A2); The winding assembly (A3) includes a winding tape fixing plate (A31), a winding tape roll (A32), and a clamping mechanism (A33). A central hole is formed in the middle of the winding tape roll (A32). The clamping mechanism (A33) is integrated on the winding tape fixing plate (A31). The clamping mechanism (A33) has a tightening part (A4) for radially tightening the central hole of the winding tape roll (A32) and a pressure cap part (A5) for applying an axial clamping force to the winding tape roll (A32). The rotating assembly (A2) includes a rotating shaft (A21), a rotating bracket (A22), and a driving component (A23). The rotating shaft (A21) is rotatably mounted on the winding frame (A1), the rotating bracket (A22) is fixedly connected to the rotating shaft (A21), and the driving component (A23) is mounted on the winding frame (A1) to drive the rotating shaft (A21) to rotate. The rotating shaft (A21) is a hollow structure with openings at both ends, and a winding hole (A24) is provided in the middle of the rotating shaft (A21). It also includes an inner mold tube assembly (A6), which includes a front inner mold tube (A61) and a rear inner mold tube (A62). The front inner mold tube (A61) and the rear inner mold tube (A62) are spaced apart within the rotating shaft (A21) and fixed to the winding frame (A1) respectively. Both the front inner mold tube (A61) and the rear inner mold tube (A62) are hollow structures used to provide axial support for the fiber bundle assembly. The area between the front inner mold tube (A61) and the rear inner mold tube (A62) constitutes a working area for winding the winding tape roll (A32).

2. The fiber winding device according to claim 1, characterized in that: The tightening part (A4) includes a first screw (A41a) fixedly installed on the shaft of the winding tape fixing disc (A31), a first ring sleeve (A42a) is sleeved on the first screw (A41a), and a plurality of first tightening claws (A43a) are arranged around the first ring sleeve (A42a). A fixing ring (A44a) is fixedly provided on the winding tape fixing disc (A31). A plurality of first slide bars (A45a) are slidably connected inside the fixing ring (A44a). One end of the first slide bar (A45a) is connected to the corresponding first tightening claw (A43a). The other end of the first slide bar (A45a) is hinged to a first connecting piece (A46a). The free end of the first connecting piece (A46a) is hinged to the first ring sleeve (A42a). The first screw (A41a) is threaded with a first locking sleeve (A47a), which can drive the first ring sleeve (A42a) to move.

3. The fiber winding device according to claim 2, characterized in that: The capping part (A5) includes a winding tape capping (A51) sleeved outside the fixing ring (A44a). The winding tape capping (A51) is located on the upper surface of the winding tape roll (A32). A capping connecting sleeve (A52) is provided on the winding tape capping (A51), and the capping connecting sleeve (A52) is threadedly connected to the first screw (A41a).

4. The fiber winding device according to claim 3, characterized in that: The winding tape fixing disc (A31) is rotatably mounted on the rotating bracket (A22). A torque motor (A7) is fixedly installed on the other side of the rotating bracket (A22). The output shaft of the torque motor (A7) passes through the rotating bracket (A22) and is coaxially and fixedly connected to the winding tape fixing disc (A31).

5. The fiber winding device according to claim 4, characterized in that: The number of the winding assembly (A3) is two, and the two winding assemblies (A3) are mounted on the rotating bracket (A22).

6. The fiber winding device according to claim 5, characterized in that: The tightening part (A4) includes a second screw (A41b) fixedly mounted on the shaft of the winding tape fixing disc (A31). A second ring sleeve (A42b) is sleeved on the second screw (A41b). The second ring sleeve (A42b) can move up and down along the axial direction of the second screw (A41b). A plurality of second tightening claws (A43b) are arranged around the second ring sleeve (A42b). A second slide bar (A45b) is provided between the second tightening claw (A43b) and the second ring (A42b). One end of the second slide bar (A45b) is connected to the corresponding second tightening claw (A43b), and the other end of the second slide bar (A45b) is hinged to a second connecting piece (A46b). The free end of the second connecting piece (A46b) is hinged to the second ring (A42b). A plurality of tension springs (A44b) are provided between the second slide bar (A45b) and the second connecting piece (A46b). The free end of the tension springs (A44b) is connected to the second screw (A41b), and the tension springs (A44b) have a tendency to drive the second tightening claw (A43b) to retract inward. A second locking sleeve (A47b) is slidably connected to the second screw (A41b), and the second locking sleeve (A47b) can drive the second ring sleeve (A42b) to move.

7. The fiber winding device according to claim 6, characterized in that: The pressure cap (A5) includes a winding tape pressure cap (A51), a pressure cap member (A521) is formed on the second locking sleeve (A47b), the bottom of the pressure cap member (A521) abuts against the winding tape pressure cap (A51), and a connecting rope (A53) is provided between the second locking sleeve (A47b) and the second tightening claw (A43b).

8. The fiber winding device according to claim 7, characterized in that: The winding tape fixing plate (A31) is fixedly installed on the rotating bracket (A22). A stepper motor (A8) is fixedly installed on the other side of the rotating bracket (A22). The output shaft of the stepper motor (A8) passes through the rotating bracket (A22) and the winding tape fixing plate (A31) and is coaxially fixedly connected to the second screw (A41b).

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