CN117265771A - Three-dimensional braiding device for super-thick curved surface body and control method - Google Patents

Abstract

The invention provides a three-dimensional braiding device of an ultra-thick curved surface body and a control method, which belong to the technical field of braiding machinery and are used for solving the problems that a large three-dimensional braiding machine body in the prior art is huge, a common annular track in the market cannot meet the use of the occasion, and meanwhile, a plurality of driving devices are required to drive to cause poor coordination of movement among rings, so that the braiding quality is affected; comprising the following steps: the device comprises a base body, a movable ring, a first connecting piece, a second connecting piece, a driving mechanism and a paying-off mechanism; the base body comprises a plurality of arc-shaped plates, and the arc-shaped plates are spliced end to form an annular body; the whole annular body is formed by splicing. The annular body is provided with a clamping groove, and the first connecting piece and the second connecting piece are arranged in the clamping groove and respectively drive the odd-numbered rings and the even-numbered rings to move. The dependence on the annular guide rail is eliminated, and the processing and the installation are convenient. The first connecting piece and the second connecting piece are driven by one driving mechanism, and the motion coordination among the rings is good, so that the quality of three-dimensional programming is improved.

Description

Three-dimensional braiding device for super-thick curved surface body and control method

Technical Field

The invention belongs to the technical field of knitting machinery, and particularly relates to a three-dimensional knitting device for an ultra-thick curved surface body and a control method.

Background

The three-dimensional braiding machine can weave a three-dimensional braiding reinforcement through the reciprocating motion of the spindle shaft in the plane, has quasi-isotropic high-performance tow distribution and mechanical properties, can be used for manufacturing various braided composite material lightweight components, and is widely applied in the fields of national defense, aerospace, ocean engineering and the like. The motion ring in the large-scale super-thick curved surface body three-dimensional braiding machine needs to run on the annular track, adopts a plurality of drive arrangement to drive the motion ring to run simultaneously, however, the diameter of the large-scale three-dimensional braiding machine body can reach about 6 meters, and the annular track commonly used in the market can not satisfy this occasion and use, and a plurality of drive arrangement drive leads to each inter-annular motion harmony poor simultaneously.

Disclosure of Invention

In view of the above-mentioned drawbacks of the prior art, the present invention aims to provide a three-dimensional braiding apparatus and a control method for an ultra-thick curved body, which are used for solving the problems that in the prior art, a large three-dimensional braiding machine body is huge, a circular track commonly used in the market cannot meet the use requirement in the present occasion, and meanwhile, a plurality of driving devices are required to drive each ring to cause poor coordination of movement, so that the braiding quality is affected.

To achieve the above and other related objects, the present invention provides a three-dimensional braiding apparatus for an ultra-thick curved body, comprising: the device comprises a base body, a movable ring, a first connecting piece, a second connecting piece, a driving mechanism and a paying-off mechanism, wherein the base body comprises a plurality of arc plates, the arc plates are spliced end to end in sequence to form an annular body, an inner layer ring and an outer layer ring are fixedly arranged on the annular body, and the inner layer ring and the outer layer ring are arranged on the same plane and concentrically; the annular body is provided with a plurality of arc-shaped clamping grooves; the movable rings with sequentially increasing diameters are concentrically arranged in the same plane, and the movable rings are arranged between the inner layer ring and the outer layer ring; each movable ring is sequentially numbered along the radial direction, wherein the odd number is an odd number ring, the even number is an even number ring, all the odd number rings are fixedly connected with the first connecting pieces, the plurality of first connecting pieces are annularly arranged, and the first connecting pieces are clamped in the arc-shaped clamping grooves and are in sliding fit with the arc-shaped clamping grooves; all even rings are fixedly connected with the second connecting pieces, a plurality of second connecting pieces are annularly arranged, and the second connecting pieces are clamped in the arc-shaped clamping grooves and are in sliding fit with the arc-shaped clamping grooves; the driving mechanism is fixedly arranged on the annular body, and drives the first connecting piece and the second connecting piece to slide in opposite directions through the driving mechanism; the paying-off mechanism comprises a radial driving assembly, radial sliding blocks and a yarn spindle, wherein a plurality of radial sliding grooves are formed in an inner ring, all movable rings and an outer ring in sequence along the radial direction, the radial sliding blocks are arranged in the sliding grooves, the sliding blocks are in sliding fit with the sliding grooves, and the yarn spindle is fixedly connected with the radial sliding blocks; the driving assembly drives the sliding block to move along the sliding groove.

Optionally, the driving mechanism comprises a motor, a screw rod, a linkage sliding block, a linear guide rail, a first connecting rod, a second connecting rod, a first swing rod and a second swing rod; the motor is fixedly connected with the annular body, the screw rod is rotationally connected with the annular body, the motor is in transmission connection with the screw rod, and the linkage sliding block is in threaded fit with the screw rod;

the linear guide rail is fixedly connected with the annular body, the screw rod is parallel to the linear guide rail, and the linkage slide block is in sliding fit with the linear guide rail; one end of the first swing rod is rotationally connected with the annular body, the other end of the first swing rod is hinged with one end of the first connecting rod, and the other end of the first connecting rod is rotationally connected with the linkage sliding block; one end of the second swing rod is rotationally connected with the annular body, the other end of the second swing rod is hinged with one end of the second connecting rod, and the other end of the second connecting rod is rotationally connected with the linkage sliding block; the first swing rod and the second swing rod are symmetrically arranged, and the first connecting rod and the second connecting rod are symmetrically arranged; the first swing rod is provided with a first sliding groove, the second swing rod is provided with a second sliding groove, the first connecting piece is fixedly provided with a first sliding piece, the second connecting piece is fixedly provided with a second sliding piece, the first sliding piece is in sliding fit with the first sliding groove, and the second sliding piece is in sliding fit with the second sliding groove.

Optionally, the first connecting piece and the second connecting piece are provided with radial bearings and axial bearings, the radial bearings and the axial bearings are mutually perpendicular, the arc-shaped clamping grooves comprise radial clamping grooves and axial clamping grooves, the radial bearings and the radial clamping grooves are in rolling fit, and the axial bearings and the axial clamping grooves are in rolling fit.

Optionally, radial drive assembly includes first extensible member and second extensible member, and first extensible member and second extensible member all with annular body fixed connection, first extensible member and second extensible member set up the both ends at radial spout in opposition respectively.

Optionally, the annular body is provided with a guide chute, the odd-numbered rings and the even-numbered rings are fixedly connected with sliding connectors, and the sliding connectors on the odd-numbered rings and the even-numbered rings are respectively in sliding fit with different guide chutes.

Optionally, the yarn spindle comprises a yarn winding module, a yarn passing module, a yarn discharging module and an adjusting control module, wherein the yarn is led out from the yarn winding module, passes through the yarn passing module and is finally led out from the yarn discharging module; the yarn winding module comprises a yarn tube, a mandrel and a yarn winding rotating base group, wherein the yarn tube is sleeved on the mandrel and is rotatably arranged on the yarn winding rotating base group; the yarn passing module is arranged at one side of the yarn winding module and comprises a yarn guide plate and a yarn guide wheel set, and yarns sequentially pass through the yarn guide plate and the yarn guide wheel set; the yarn discharging module is arranged at the top of the yarn winding module and comprises an upper cantilever mounting block, a yarn passing cylinder and a swinging assembly, wherein the upper cantilever mounting block is fixed on the adjustment control module, the swinging assembly comprises a swinging fixing seat and a swinging rotating seat, the swinging fixing seat is fixed on the upper cantilever mounting block through the yarn passing cylinder, the swinging rotating seat is rotatably arranged on the swinging fixing seat, a yarn discharging porcelain eye is arranged on the swinging rotating seat, and yarns are led out from the yarn discharging porcelain eye; the adjusting control module is arranged between the yarn winding module and the yarn discharging module and is used for controlling the rotation of the yarn tube in the yarn winding module; the bobbin is provided with mounting plates at two ends along the length direction, a core hole and a plurality of rotation stopping holes are arranged in the mounting plates, the core hole and the bobbin are coaxial and mutually communicated, and the rotation stopping holes are circumferentially arranged at the outer sides of the core hole; the yarn winding rotating base group comprises a yarn winding rotating seat and a base, and the base is fixedly connected with the radial sliding block; the yarn winding rotary seat is of a rotary body structure, a rotating fit hole is formed in the center of the yarn winding rotary seat, a plurality of rotation stopping bosses are arranged on the surface of the yarn winding rotary seat, the rotation stopping bosses are circumferentially arranged on the periphery of the rotating fit hole, the rotation stopping bosses and the rotation stopping holes are inserted and assembled, the yarn tube is rotatably installed on the base through the yarn winding rotary seat, a fixed cylinder is arranged on the base, and the yarn winding rotary seat and the fixed cylinder are in rotating fit through a bearing.

Optionally, the yarn guide plate includes a yarn guide portion and a mounting portion; the surface of the yarn guiding part is an arc bending surface, and the surface of the yarn guiding part is provided with a wear-resistant layer; the installation department is straight plate structure, is equipped with the guide yarn mounting hole on the installation department, and the installation department is installed on the base.

Optionally, the adjustment control module comprises a fixed connecting block, a guide rod, a lifting frame and a locking assembly; the top of fixed link piece is connected with last cantilever installation piece, and the bottom of fixed link piece is equipped with first connecting hole and second connecting hole, is provided with tension spring in the second connecting hole, and the top of guide arm is fixed in first connecting hole through the jackscrew, and the bottom of guide arm is through leading fixed block fixed mounting on the base, and the top of dabber is connected through the fixed cover with fixed link piece, and the bottom mounting of dabber is in the inside of fixed section of thick bamboo. The hoisting frame is slidably mounted on the guide rod, an upper ejector block is arranged at the top of the hoisting frame, an upper guide hole is formed in the upper ejector block, a lower connecting block is arranged at the bottom of the hoisting frame, a lower guide hole is formed in the lower connecting block, the upper guide hole and the lower guide hole are coaxially arranged, the guide rod slidably passes through the upper guide hole and the lower guide hole, a compression spring is further arranged at the top of the guide rod, the compression spring is wound on the guide rod, and the bottom end of the compression spring is fixed in the hole wall of the upper guide hole. The clamping and locking assembly is arranged between the lifting frame and the base, and the lifting frame drives the clamping and locking assembly to control the rotation of the yarn winding rotary seat. The yarn guiding wheel set comprises a fixed yarn guiding wheel and a lifting yarn guiding wheel, the adjusting control module is further provided with a switching block and a lower cantilever mounting block, the switching block is fixedly arranged on the fixedly connected block, the fixed yarn guiding wheel is rotatably arranged on the switching block, the lower cantilever mounting block is arranged on the lifting frame, the lifting yarn guiding wheel is rotatably arranged on the lower cantilever mounting block, and when the lifting yarn guiding wheel receives yarn lifting tension, the lower cantilever mounting block drives the lifting frame to lift along the guide rod.

Optionally, the locking assembly comprises a locking piece and a plurality of locking tooth grooves, the locking piece is arranged on one side of the lower connecting block, which is close to the base, the locking tooth grooves are arranged on the yarn winding rotary seat, each locking tooth groove is circumferentially arranged on the outer side of the yarn winding rotary seat, and when the locking piece is locked into the locking tooth groove, the yarn winding rotary seat is locked to rotate; when the lifting frame rises to drive the clamping piece to move upwards, the clamping piece is clamped out of the clamping tooth groove, and the winding yarn rotating seat can rotate.

A control method of a three-dimensional braiding device of an ultra-thick curved surface body comprises the following steps:

s1, in the yarn placing process of a yarn spindle, a motor drives a screw rod to rotate, a linkage slide block is driven to slide in the rotating process of the screw rod, and in the sliding process of the linkage slide block, a first swing rod and a second swing rod are driven to swing in opposite directions, and the first swing rod and the second swing rod respectively drive an odd ring and an even ring to rotate in different directions;

s2, when the odd-numbered rings and the even-numbered rings stop rotating, the radial driving assembly drives the radial sliding blocks to move in the radial sliding grooves, and the radial sliding blocks in the odd-numbered rings are pushed into the even-numbered rings, and the radial sliding blocks in the even-numbered rings are pushed into the odd-numbered rings;

s3, reversely rotating the motor, sliding the linkage sliding block in the opposite direction to the step S1, and simultaneously rotating the odd ring and the even ring in the opposite direction to the step S1;

s4, the radial driving assembly drives the radial sliding block to slide in the radial sliding groove in the direction opposite to the direction of the step S2;

s5, repeating the steps from S1 to S4 until the programming is finished.

As described above, the complete three-dimensional braiding apparatus and control method for super-thick curved surface body of the present invention have at least the following advantages:

because the whole annular body is formed by splicing, the processing is easy, and the large three-dimensional braiding machine body can be processed by more than 6 meters. Then, a clamping groove is formed in the whole annular body, and the first connecting piece and the second connecting piece are arranged in the clamping groove and respectively drive the odd-numbered rings and the even-numbered rings to move. The dependence on the annular guide rail is eliminated, and the processing and the installation are convenient. And the first connecting piece drives all odd rings to move simultaneously, and the second connecting piece drives all even rings to move simultaneously, and the first connecting piece and the second connecting piece are driven by one driving mechanism, so that the motion coordination among the rings is good, and the quality of three-dimensional weaving is improved.

Drawings

FIG. 1 is a front view of a three-dimensional braiding apparatus of an ultra-thick curved body according to the present invention;

FIG. 2 shows an enlarged view of part A of FIG. 1 in accordance with the present invention;

FIG. 3 shows a rear view of the ultra-thick curved body three-dimensional braiding apparatus of the present invention;

FIG. 4 is a schematic perspective view showing a three-dimensional braiding apparatus of an ultra-thick curved body according to the present invention;

FIG. 5 is a schematic perspective view of the yarn spindle of the present invention;

FIG. 6 is a schematic perspective view of a yarn spindle according to the present invention;

FIG. 7 is a schematic view of the structure of the mandrel and the yarn package of the present invention;

FIG. 8 is a schematic view showing the structural cooperation of the yarn winding rotating base group in the invention;

FIG. 9 is a schematic view showing the structural cooperation of the yarn passing module according to the present invention;

FIG. 10 is a schematic view of the structure of the fixing block according to the present invention;

FIG. 11 is a schematic view showing the structure of a lifting frame according to the present invention;

FIG. 12 is a schematic diagram showing the structure of the push-up group according to the present invention;

fig. 13 is a schematic structural view of the yarn-out module according to the present invention.

Detailed Description

Further advantages and effects of the present invention will become apparent to those skilled in the art from the disclosure of the present invention, which is described by the following specific examples.

Please refer to fig. 1 to 13. It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the invention to the extent that it can be practiced, since modifications, changes in the proportions, or adjustments of the sizes, which are otherwise, used in the practice of the invention, are included in the spirit and scope of the invention which is otherwise, without departing from the spirit or scope thereof. Also, the terms such as "upper," "lower," "left," "right," "middle," and "a" and the like recited in the present specification are merely for descriptive purposes and are not intended to limit the scope of the invention, but are intended to provide relative positional changes or modifications without materially altering the technical context in which the invention may be practiced.

The following examples are given by way of illustration only. Various embodiments may be combined and are not limited to only what is presented in the following single embodiment.

Referring to fig. 1-4, the present invention provides a three-dimensional braiding apparatus for an ultra-thick curved body, comprising: base member, moving ring 2, first connecting piece 203, second connecting piece 204, actuating mechanism 3 and paying off mechanism 4, the base member is fixed on support frame 101, and support frame 101 fixed mounting is standing up whole organism on ground, and whole base member adopts the concatenation of polylith arc to form, can adopt high strength bolt to splice the arc into annular body 1. An inner ring 103 and an outer ring 102 are fixedly arranged on the annular body 1, and the inner ring 103 and the outer ring 102 are arranged concentrically on the same plane; a plurality of arc-shaped clamping grooves are formed in the annular body 1; a plurality of moving rings 2 with sequentially increasing diameters are concentrically arranged in the same plane, and the moving rings 2 are arranged between an inner ring 103 and an outer ring 102; each moving ring 2 is sequentially numbered along the radial direction, the odd numbered rings are odd numbered rings 201, and the even numbered rings 202 are even numbered according to integers 1, 2 and 3 …; all odd rings 201 are fixedly connected with the first connecting pieces 203, and can be fixed by bolts, a plurality of first connecting pieces 203 are annularly arranged, and the first connecting pieces 203 are clamped in the arc-shaped clamping grooves and are in sliding fit with the arc-shaped clamping grooves; all even rings 202 are fixedly connected with the second connecting pieces 204, and can be fixed by bolts, a plurality of second connecting pieces 204 are annularly arranged, and the second connecting pieces 204 are clamped in the arc-shaped clamping grooves and are in sliding fit with the arc-shaped clamping grooves. The driving mechanism 3 is fixedly arranged on the annular body 1, and the first connecting piece 204 and the second connecting piece 204 are driven to slide in opposite directions through the driving mechanism 3; the paying-off mechanism 4 comprises a radial driving assembly, radial sliding blocks 403 and yarn spindles 40, a plurality of radial sliding grooves 210 are formed in the inner layer ring 103, all the movable rings 2 and the outer layer ring 102 in sequence along the radial direction, the radial sliding blocks 403 are arranged in the radial sliding grooves 210, the radial sliding blocks 403 are in sliding fit with the radial sliding grooves 210, one radial sliding block 403 is arranged in each radial sliding groove 210 on each movable ring 2, and each radial sliding block 403 is fixedly connected with one yarn spindle 40. The yarn spindle 40 is fixedly connected with the radial slide block 403; the driving assembly drives the sliding block to move along the sliding groove.

Because the whole annular body 1 is formed by splicing, the processing is easy, and the large three-dimensional braiding machine body can be processed to be more than 6 meters. Then, an arc-shaped clamping groove is formed in the whole annular body 1, and the first connecting piece 203 and the second connecting piece 204 are arranged in the arc-shaped clamping groove and respectively drive the odd-numbered rings 201 and the even-numbered rings 202 to move. The dependence on the annular guide rail is eliminated, and the processing and the installation are convenient. And the first connecting piece 203 drives all the odd rings 201 to move at the same time, the second connecting piece 204 drives all the even rings 202 to move at the same time, and the first connecting piece 203 and the second connecting piece 204 are driven by one driving mechanism 3, so that the motion coordination among the rings is good, and the quality of three-dimensional weaving is improved.

In this embodiment, referring to fig. 1 to 4, the driving mechanism 3 includes a motor 301, a screw rod 302, a linkage slider 303, a linear guide 304, a first link 306, a second link 305, a first swing link 308, and a second swing link 307; the motor 301 is fixedly connected with the annular body 1, the screw rod 302 is rotationally connected with the annular body 1, the motor 301 is in transmission connection with the screw rod 302, and the linkage sliding block 303 is in threaded fit with the screw rod 302; the linear guide rail 304 is fixedly connected with the annular body 1, the screw rod 302 is parallel to the linear guide rail 304, and the linkage slider 303 is in sliding fit with the linear guide rail 304; one end of a first swing rod 308 is rotationally connected with the annular body 1, the other end of the first swing rod 308 is hinged with one end of a first connecting rod 306, and the other end of the first connecting rod 306 is rotationally connected with a linkage sliding block 303; one end of the second swing rod 307 is rotationally connected with the annular body 1, the other end of the second swing rod 307 is hinged with one end of the second connecting rod 305, and the other end of the second connecting rod 305 is rotationally connected with the linkage sliding block 303; the first swing rod 308 and the second swing rod 307 are symmetrically arranged, and the first connecting rod 306 and the second connecting rod 305 are symmetrically arranged; the first swing rod 308 is provided with a first sliding groove 3081, the second swing rod 307 is provided with a second sliding groove 3071, the first connecting piece 203 is fixedly provided with a first sliding piece 2031, the second connecting piece 204 is fixedly provided with a second sliding piece 2041, the first sliding piece 2031 is in sliding fit with the first sliding groove 3081, and the second sliding piece 2041 is in sliding fit with the second sliding groove 3071.

The motor 301 drives the linkage sliding block 303 to move on the linear guide rail 304, the first swinging rod 308 and the second swinging rod 307 are respectively driven to swing in opposite directions by the first connecting rod 306 and the second connecting rod 305 in the moving process of the sliding block, and the first sliding piece 2031 on the first connecting piece 203 slides in the first sliding groove 3081 of the first swinging rod 308 and the second sliding piece 2041 on the second connecting piece 204 slides in the second sliding groove 3071 of the second swinging rod 307 in the swinging process of the first swinging rod 308 and the second swinging rod 307. The first link 203 and the second link 204 are respectively engaged in the grooves to rotate, thereby driving all the odd numbered rings 201 and all the even numbered rings 202 to rotate in opposite directions. The odd ring 201 and the even ring 202 are driven by the motor 301 to reciprocally rotate on the ring body 1, such as initial: the odd ring 201 rotates 7.5 degrees clockwise and the even ring 202 rotates 7.5 degrees counterclockwise; after the radial switching yarn spindle 40 is switched, the odd ring 201 rotates 7.5 degrees counterclockwise, and the even ring 202 rotates 7.5 degrees clockwise; and thus, reciprocally operates. One motor 301 drives all the odd rings 201 to rotate synchronously, and the even rings 202 to rotate synchronously. The whole coordination is good, the adjustment is easy, the rotation of the odd ring 201 and the even ring 202 is not easy to make mistakes, and the quality of the three-dimensional product is good.

In this embodiment, referring to fig. 1 to 4, the first connecting piece 203 and the second connecting piece 204 are respectively provided with a radial bearing and an axial bearing, the radial bearing and the axial bearing are perpendicular to each other, the arc-shaped clamping groove comprises a radial clamping groove and an axial clamping groove, the radial bearing and the radial clamping groove are in rolling fit, and the axial bearing and the axial clamping groove are in rolling fit. The radial bearing and the axial bearing are limited in a clamping groove on the annular body 1, so that the connection between the movable ring 2 and the annular body 1 is realized. The radial bearing bears the weight of the moving ring 2 and the axial bearing overcomes the tipping force. The annular body 1 is provided with guide sliding grooves, sliding connectors are fixedly connected to the odd-numbered rings 201 and the even-numbered rings 202, and the sliding connectors on the odd-numbered rings 201 and the even-numbered rings 202 are respectively matched with the different guide sliding grooves in a sliding manner. Thereby enhancing the support of the ring 1.

In this embodiment, referring to fig. 1 to 4, the radial driving assembly includes a first telescopic member 401 and a second telescopic member 402, the first telescopic member 401 and the second telescopic member 402 are fixedly connected with the annular body 1, and the first telescopic member 401 and the second telescopic member 402 are respectively and oppositely disposed at two ends of the radial chute 210. The first telescopic piece 401 and the second telescopic piece 402 are telescopic along the radial sliding groove 210 and push the radial sliding blocks 403 in the radial sliding groove 210 to move, and the radial sliding groove 210 sections in each movable ring 2 are provided with the radial sliding blocks 403; the first telescopic member 401 and the second telescopic member 402 may be a cylinder, an oil cylinder or an electric push rod.

In this embodiment, referring to fig. 1-13, the yarn spindle 40 includes a winding module 41, a yarn passing module 42, a yarn discharging module 43 and an adjusting control module 44, and yarn is led out from the winding module 41, passes through the yarn passing module 42 and is led out from the yarn discharging module 43; the yarn winding module 41 comprises a yarn tube 411, a mandrel 412 and a yarn winding rotating base group, wherein the yarn tube 411 is sleeved on the mandrel 412, and the yarn tube 411 is rotatably arranged on the yarn winding rotating base group; the yarn passing module 42 is arranged at one side of the yarn winding module 41, the yarn passing module 42 comprises a yarn guide plate 421 and a yarn guide wheel set, and yarns sequentially pass through the yarn guide plate 421 and the yarn guide wheel set; the yarn discharging module 43 is arranged at the top of the yarn winding module 41, the yarn discharging module 43 comprises an upper cantilever mounting block 431, a yarn passing cylinder 432 and a swinging assembly, the upper cantilever mounting block 431 is fixed on the adjusting control module 44, the swinging assembly comprises a swinging fixing seat 433 and a swinging rotating seat 434, the swinging fixing seat 433 is fixed on the upper cantilever mounting block 431 through the yarn passing cylinder 432, the swinging rotating seat 434 is rotatably arranged on the swinging fixing seat 433, a yarn discharging porcelain eye 435 is arranged on the swinging rotating seat 434, and yarns are led out from the yarn discharging porcelain eye 435; the adjustment control module 44 is disposed between the winding module 41 and the yarn outlet module 43, and the adjustment control module 44 is used for controlling the rotation of the bobbin 411 in the winding module 41. The invention is provided with a yarn winding module 41, a yarn passing module 42, a yarn discharging module 43 and an adjusting control module 44, wherein yarns are led out from the yarn winding module 41, sequentially pass through the yarn passing module 42 and are led out from the yarn discharging module 43 to a subsequent processing station. The swing assembly arranged in the yarn discharging module 43 comprises the swing fixing seat 433 and the swing rotating seat 434, the swing rotating seat 434 is rotatably arranged on the swing fixing seat 433, and by adopting the swing and swing yarn discharging structure, the stress direction can be dynamically adjusted in real time no matter in which direction the yarn receives the stress force in the yarn discharging process, and the stress force applied to the yarn in the yarn discharging process can be uniformly distributed on each tow by matching with the yarn discharging porcelain eye 435 on the swing rotating seat 434, so that the stress of each tow is consistent, and the phenomenon of tearing and fuzzing caused by uneven stress is avoided, thereby influencing the product quality.

In this embodiment, referring to fig. 7 and 8, both ends of the spool 411 along the length direction are provided with mounting discs 413, a core hole 414 and a plurality of rotation stopping holes 415 are provided in the mounting discs 413, the core hole 414 and the spool 411 are coaxial and mutually communicated, and each rotation stopping hole 415 is circumferentially arranged outside the core hole 414; the yarn winding rotating base group comprises a yarn winding rotating base 416 and a base 417, and the base 417 is fixedly connected with the radial slide block 403. The yarn winding rotary seat 416 is a rotary body structure, a rotating fit hole 418 is formed in the center of the yarn winding rotary seat 416, a plurality of rotation stopping bosses 419 are formed in the surface of the yarn winding rotary seat 416, the rotation stopping bosses 419 are circumferentially arranged on the periphery of the rotating fit hole 418, the rotation stopping bosses 419 and the rotation stopping holes 415 are in insertion fit, the yarn tube 411 is rotatably mounted on the base 417 through the yarn winding rotary seat 416, and the yarn winding rotary seat 416 and the fixed cylinder 4112 are in rotating fit through a bearing 4110. The rotation stopping holes 415 arranged in the circumferential direction are matched with the rotation stopping bosses 419 arranged in the circumferential direction, so that the bobbin 411 can be rotatably installed, and the rotating yarn releasing process can be further realized. Wherein the mounting disc 413 is provided with a core hole 414, and the core hole 414 and the bobbin 411 are coaxially communicated with each other, so that the insertion and the mounting of the mandrel 412 can be ensured. When the yarn winding rotary seat 416 is matched with the base 417, the outer ring of the bearing 4110 is matched with the rotating matching hole 418, and the inner wall of the bearing 4110 is matched with the outer wall of the fixed cylinder 4112, so that the rotating installation of the two is realized.

In this embodiment, referring to fig. 5 and 9, the yarn guide plate 421 includes a yarn guide portion 422 and a mounting portion 423; the surface of the yarn guiding part 422 is an arc bending surface, and the surface of the yarn guiding part 422 is provided with a wear-resistant layer; the mounting portion 423 is of a straight plate structure, a yarn guide mounting hole is provided in the mounting portion 423, and the mounting portion 423 is mounted on the base 417. Compared with the traditional straight yarn guide plate 421, the transition is smoother, the stress of the yarn is more uniform when the yarn passes through the yarn guide plate 421, the damage of concentrated stress to yarn tows is reduced, and meanwhile, the surface of the yarn guide part 422 is a wear-resistant layer, so that the damage to tearing and fuzzing of the yarn is further reduced.

In this embodiment, referring to fig. 13, a fixing ring 436 is disposed at the top end of the yarn passing barrel 432, and an external thread is disposed at the bottom end of the yarn passing barrel 432; the swinging rotary seat 434 is rotatably installed on the swinging fixed seat 433 through the yarn outlet rotary shaft 437, a fixed matching hole 438 is formed in the swinging fixed seat 433, a yarn passing hole 439 is formed in the upper cantilever mounting block 431, the yarn passing barrel 432 sequentially penetrates through the fixed matching hole 438 and the yarn passing hole 439, the yarn passing barrel 432 presses the fixed swinging fixed seat 433 through a fixing ring 436 at the top end, and the yarn passing barrel 432 is fixed on the upper cantilever mounting block 431 through the matching of external threads and nuts at the bottom end. The swing assembly arranged in the yarn discharging module 43 comprises a swing fixing seat 433 and a swing rotating seat 434, the swing rotating seat 434 is rotatably arranged on the swing fixing seat 433, the stress direction can be dynamically adjusted in real time no matter in which direction the yarn receives the stress force in the yarn discharging process through the swing yarn discharging structure, and the stress force of the yarn in the discharging process can be uniformly distributed on each tow by matching with the yarn discharging porcelain eye 435 on the swing rotating seat 434, so that the stress of each tow is consistent, and the phenomenon of tearing and fuzzing caused by uneven stress is avoided, thereby influencing the product quality

In this embodiment, referring to fig. 13, a yarn outlet roller 4310 is further disposed on the yarn outlet shaft 437, the yarn outlet roller 4310 is rotatably mounted on the yarn outlet shaft 437, and the yarn outlet roller 4310 is located below the yarn outlet porcelain eye 435; the matching connection of the swing rotating seat 434 and the yarn outlet rotating shaft 437 is provided with a clamping spring 4311. The motion track of the yarn in the yarn outlet module 43 is that the yarn enters from the yarn passing hole 439 to pass through the yarn passing barrel 432 and then passes through the yarn outlet roller 4310 to be finally led out from the yarn outlet porcelain eye 435, and the yarn outlet roller 4310 and the clamp spring 4311 are arranged, so that the tension effect can be better stabilized for the transmission of the yarn, and the transmission quality of the yarn is ensured.

In this embodiment, referring to fig. 8, 10 and 11, the adjustment control module 44 includes a fixed connection block 441, a guide rod 442, a lifting frame 443 and a latch assembly; the top of the fixed connecting block 441 is connected with the upper cantilever mounting block 431, the bottom of the fixed connecting block 441 is provided with a first connecting hole and a second connecting hole, a tension spring 444 is arranged in the second connecting hole, the top end of a guide rod 442 is fixed in the first connecting hole through a jackscrew 448, the bottom end of the guide rod 442 is fixedly mounted on the base 417 through a guide and fixing block, the top end of a mandrel 412 is connected with the fixed connecting block 441 through a fixed cover 111, and the bottom end of the mandrel 412 is fixed in the fixed cylinder 4112; the lifting frame 443 is slidably mounted on the guide rod 442, an upper jacking block 445 is arranged at the top of the lifting frame 443, an upper guide hole is formed in the upper jacking block 445, a lower connecting block 446 is arranged at the bottom of the lifting frame 443, a lower guide hole is formed in the lower connecting block 446, the upper guide hole and the lower guide hole are coaxially arranged, the guide rod 442 slidably passes through the upper guide hole and the lower guide hole, a compression spring 447 is further arranged at the top of the guide rod 442, the compression spring 447 is wound on the guide rod 442, and the bottom end of the compression spring 447 is fixed in the hole wall of the upper guide hole; the locking assembly is arranged between the lifting frame 443 and the base 417, and the lifting frame 443 drives the locking assembly to control the rotation of the yarn winding rotary seat 416.

In this embodiment, referring to fig. 6 and 9, the yarn guiding wheel set includes a fixed yarn guiding wheel 424 and a lifting yarn guiding wheel 425, the adjusting control module 44 is further provided with a switching block 449 and a lower cantilever mounting block 4410, the switching block 449 is fixedly mounted on the fixed connecting block 441, the fixed yarn guiding wheel 424 is rotatably mounted on the switching block 449, the lower cantilever mounting block 4410 is disposed on the lifting frame 443, the lifting yarn guiding wheel 425 is rotatably mounted on the lower cantilever mounting block 4410, and when the lifting yarn guiding wheel 425 receives the yarn lifting tension, the lower cantilever mounting block 4410 drives the lifting frame 443 to lift along the guide rod 442. The yarn passes through the yarn guide plate 421 and then sequentially passes through the lifting yarn guide wheel 425 and the fixed yarn guide wheel 424 to finally enter the yarn outlet module 43, the tension force of the yarn acts on the lifting yarn guide wheel 425, the yarn guide wheel is arranged on the lower cantilever mounting block 4410, the lifting frame 443 can be driven to lift along the guide rod 442, and the compression spring 447 can limit the minimum tension force of the yarn.

In this embodiment, the wheel grooves of the fixed yarn guiding wheel 424 and the lifting yarn guiding wheel 425 are both U-shaped grooves. In the invention, the U-shaped wheel grooves are adopted for the fixed yarn guide wheel 424 and the lifting yarn guide wheel 425 in the yarn guide wheel group, and compared with the traditional V-shaped wheel groove, the plane stress is applied to the yarn in the yarn passing process, so that the extrusion and friction of the yarn are reduced, and the yarn performance is effectively protected.

In this embodiment, referring to fig. 11 and 12, the adjustment control module 44 further includes an upward pushing group, the upward pushing group includes an upward pushing table 4411 and an upward pushing rod 4412, the bottom end of the upward pushing rod 4412 is fixed on the upper surface of the upward pushing table 4411, the upward pushing table 4411 is provided with a through hole, the upward pushing table 4411 is fixedly mounted on the lower connecting block 446, the guide rod 442 slides through the through hole, the lower cantilever mounting block 4410 is fixedly mounted on the upward pushing table 4411, the upward pushing group and the lifting frame 443 are synchronously lifted, and when the upward pushing group is lifted, the upward pushing rod 4412 enters the second connecting hole to be in compression contact with the tension spring 444. The push-up group and the lifting frame 443 are arranged to synchronously move upwards, and after the push-up rod 4412 and the tension spring 444 are in extrusion contact in the lifting process, the tension control on yarn transmission can be better realized. It should be noted that during the lifting of the lifting frame 443 and the push-up set, the compression spring 447 is compressed and stressed first, and then the tension spring 444 is stressed after a certain period of lifting.

In this embodiment, referring to fig. 8 and 11, the latch assembly includes a latch 4413 and a plurality of latch slots 4414, wherein the latch 4413 is mounted on one side of the lower joint 446 near the base 417, the latch slots 4414 are disposed on the winding rotary seat 416, and each of the latch slots 4414 is circumferentially arranged on the outer side of the winding rotary seat 416, and when the latch 4413 is snapped into the latch slot 4414, the winding rotary seat 416 is locked for rotation; when the lifting frame 443 is lifted to drive the clamping piece 4413 to move upwards, the clamping piece 4413 is clamped out of the clamping tooth slot 4414, and the winding rotary seat 416 can rotate. According to the invention, the lifting tension force of the yarn in the adjusting control module 44 acts on the lifting yarn guide wheel 425, so that the lifting frame 443 is driven to lift, the compression spring 447 is stressed and compressed, and the clamping piece 4413 is separated from the clamping tooth groove 4414 in the lifting process of the lifting frame 443, so that the yarn can be discharged in a rotating manner around the yarn rotating seat 416 and the yarn tube 411, and therefore, the yarn discharge operation of the spindle structure can be realized only when the tension force of the yarn is enough, the yarn tube 411 is limited to rotate and stop the yarn discharge when the tension force of the yarn is insufficient, the influence of the condition of yarn shutdown or insufficient tension force on the winding or other processing of the follow-up yarn is avoided, and the quality and effect of products are ensured.

A control method of a three-dimensional braiding device of an ultra-thick curved surface body comprises the following steps:

s1, in the yarn releasing process of a yarn spindle 40, a motor 301 drives a screw rod 302 to rotate, in the rotating process of the screw rod 302, a linkage sliding block 303 is driven to slide, in the sliding process of the linkage sliding block 303, a first swing rod 308 and a second swing rod 307 are driven to swing in opposite directions, and the first swing rod 308 and the second swing rod 307 respectively drive an odd ring 201 and an even ring 202 to rotate in different directions;

s2, when the odd ring 201 and the even ring 202 stop rotating, the radial driving assembly drives the radial sliding blocks 403 to move in the radial sliding grooves 210, and pushes the radial sliding blocks 403 in the odd ring 201 into the even ring 202, and the radial sliding blocks 403 in the even ring 202 are pushed into the odd ring 201;

s3, the motor 301 rotates reversely, the linkage slider 303 slides towards the reverse direction of the step S1, and meanwhile, the odd ring 201 and the even ring 202 also rotate towards the reverse direction of the step S1;

s4, the radial driving assembly drives the radial sliding block 403 to slide in the radial sliding groove 210 in the direction opposite to the direction of the step S2;

s5, repeating the steps from S1 to S4 until the programming is finished.

The thickness of more than 7 layers can be woven at one time, and most of conventional three-dimensional braiding machines can only weave 2 layers; the yarns between the layers are crosslinked, the mechanical property of the knitted fabric is high, and the yarns between the conventional knitted layers are not connected.

The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.

Claims (10)

1. A three-dimensional braiding apparatus for an ultra-thick curved body, comprising:

the substrate is provided with a plurality of grooves,

the base body comprises a plurality of arc-shaped plates, the arc-shaped plates are spliced end to form an annular body, an inner layer ring and an outer layer ring are fixedly arranged on the annular body, and the inner layer ring and the outer layer ring are concentrically arranged in the same plane; a plurality of arc-shaped clamping grooves are formed in the annular body;

the movable ring is provided with a plurality of movable rings,

a plurality of moving rings with sequentially increasing diameters are concentrically arranged in the same plane, and the moving rings are arranged between the inner layer ring and the outer layer ring; each movable ring is sequentially numbered along the radial direction, wherein the number of each movable ring is an odd number of the movable rings, and the number of each movable ring is an even number of the movable rings;

the first connecting piece is provided with a first connecting piece,

all the odd rings are fixedly connected with the first connecting pieces, a plurality of first connecting pieces are annularly arranged, and the first connecting pieces are clamped in the arc-shaped clamping grooves and are in sliding fit with the arc-shaped clamping grooves;

the second connecting piece is provided with a second connecting piece,

all the even rings are fixedly connected with the second connecting pieces, a plurality of the second connecting pieces are annularly arranged, and the second connecting pieces are clamped in the arc-shaped clamping grooves and are in sliding fit with the arc-shaped clamping grooves;

the driving mechanism is used for driving the driving mechanism,

the driving mechanism is fixedly arranged on the annular body, and drives the first connecting piece and the second connecting piece to slide in opposite directions through the driving mechanism;

the paying-off mechanism comprises a paying-off mechanism,

the paying-off mechanism comprises a radial driving assembly, radial sliding blocks and yarn spindles, a plurality of radial sliding grooves are formed in the inner layer ring, all the movable rings and the outer layer ring in sequence along the radial direction, the radial sliding blocks are arranged in the radial sliding grooves, the radial sliding blocks are in sliding fit with the radial sliding grooves, one radial sliding block is arranged in each radial sliding groove of each movable ring, and each radial sliding block is fixedly connected with one yarn spindle; the driving assembly drives the radial sliding block to move along the radial sliding groove.

2. The ultra-thick curved body three-dimensional braiding apparatus according to claim 1, wherein: the driving mechanism comprises a motor, a screw rod, a linkage sliding block, a linear guide rail, a first connecting rod, a second connecting rod, a first swing rod and a second swing rod;

the motor is fixedly connected with the annular body, the screw rod is rotationally connected with the annular body, the motor is in transmission connection with the screw rod, and the linkage sliding block is in threaded fit with the screw rod;

the linear guide rail is fixedly connected with the annular body, the screw rod is parallel to the linear guide rail, and the linkage slide block is in sliding fit with the linear guide rail;

one end of the first swing rod is rotationally connected with the annular body, the other end of the first swing rod is hinged with one end of the first connecting rod, and the other end of the first connecting rod is rotationally connected with the linkage sliding block;

one end of the second swing rod is rotationally connected with the annular body, the other end of the second swing rod is hinged with one end of the second connecting rod, and the other end of the second connecting rod is rotationally connected with the linkage sliding block;

the first swing rod and the second swing rod are symmetrically arranged, and the first connecting rod and the second connecting rod are symmetrically arranged; the first swing rod is provided with a first sliding groove, the second swing rod is provided with a second sliding groove, the first connecting piece is fixedly provided with a first sliding piece, the second connecting piece is fixedly provided with a second sliding piece, the first sliding piece is in sliding fit with the first sliding groove, and the second sliding piece is in sliding fit with the second sliding groove.

3. The ultra-thick curved body three-dimensional braiding apparatus according to claim 1, wherein: the first connecting piece with be provided with radial bearing and axial bearing on the second connecting piece, radial bearing with axial bearing mutually perpendicular, the arc draw-in groove includes radial draw-in groove and axial draw-in groove, radial bearing with radial draw-in groove rolling fit, axial bearing with axial draw-in groove rolling fit.

4. The ultra-thick curved body three-dimensional braiding apparatus according to claim 1, wherein: the radial driving assembly comprises a first telescopic piece and a second telescopic piece, the first telescopic piece and the second telescopic piece are fixedly connected with the annular body, and the first telescopic piece and the second telescopic piece are respectively and oppositely arranged at two ends of the radial sliding groove.

5. The ultra-thick curved body three-dimensional braiding apparatus according to claim 2, wherein: the annular body is provided with guide sliding grooves, the odd-numbered rings and the even-numbered rings are fixedly connected with sliding connecting pieces, and the sliding connecting pieces on the odd-numbered rings and the even-numbered rings are respectively in sliding fit with different guide sliding grooves.

6. The ultra-thick curved body three-dimensional braiding apparatus according to claim 1, wherein: the yarn spindle comprises a yarn winding module, a yarn passing module, a yarn discharging module and an adjusting control module, wherein yarn is led out from the yarn winding module, passes through the yarn passing module and is finally led out from the yarn discharging module;

the yarn winding module comprises a yarn tube, a mandrel and a yarn winding rotating base group, wherein the yarn tube is sleeved on the mandrel, and the yarn tube is rotatably arranged on the yarn winding rotating base group;

the yarn passing module is arranged on one side of the yarn winding module and comprises a yarn guide plate and a yarn guide wheel set, and yarns sequentially pass through the yarn guide plate and the yarn guide wheel set;

the yarn outlet module is arranged at the top of the yarn winding module and comprises an upper cantilever mounting block, a yarn passing cylinder and a swinging assembly, the upper cantilever mounting block is fixed on the adjustment control module, the swinging assembly comprises a swinging fixing seat and a swinging rotating seat, the swinging fixing seat is fixed on the upper cantilever mounting block through the yarn passing cylinder, the swinging rotating seat is rotatably arranged on the swinging fixing seat, a yarn outlet porcelain eye is arranged on the swinging rotating seat, and yarns are led out from the yarn outlet porcelain eye;

the yarn winding module is used for winding yarn on the yarn tube, and the yarn winding module is used for winding yarn on the yarn tube;

the bobbin is characterized in that mounting plates are arranged at two ends of the bobbin in the length direction, a core hole and a plurality of rotation stopping holes are arranged in the mounting plates, the core hole and the bobbin are coaxial and communicated with each other, and the rotation stopping holes are circumferentially arranged at the outer sides of the core hole;

the yarn winding rotating base group comprises a yarn winding rotating seat and a base, and the base is fixedly connected with the radial sliding block; the yarn winding rotary seat is of a rotary body structure, a rotary fit hole is formed in the center of the yarn winding rotary seat, a plurality of rotation stopping bosses are arranged on the surface of the yarn winding rotary seat, the rotation stopping bosses are circumferentially arranged on the periphery of the rotary fit hole, the rotation stopping bosses are in insertion fit with the rotation stopping holes, the yarn tube is rotatably mounted on the base through the yarn winding rotary seat, a fixed cylinder is arranged on the base, and the yarn winding rotary seat is in rotary fit with the fixed cylinder through a bearing.

7. The ultra-thick curved body three-dimensional braiding apparatus according to claim 6, wherein: the yarn guide plate comprises a yarn guide part and a mounting part;

the surface of the yarn guide part is an arc bending surface, and a wear-resistant layer is arranged on the surface of the yarn guide part;

the installation department is the straight plate structure, be equipped with the yarn mounting hole on the installation department, the installation department is installed on the base.

8. The ultra-thick curved body three-dimensional braiding apparatus according to claim 6, wherein: the adjusting control module comprises a fixed connecting block, a guide rod, a lifting frame and a locking assembly;

the top of the fixed connecting block is connected with the upper cantilever mounting block, a first connecting hole and a second connecting hole are formed in the bottom of the fixed connecting block, a tension spring is arranged in the second connecting hole, the top end of the guide rod is fixed in the first connecting hole through a jackscrew, the bottom end of the guide rod is fixedly mounted on the base through a guide fixing block, the top end of the mandrel is connected with the fixed connecting block through a fixed cover, and the bottom end of the mandrel is fixed in the fixed cylinder;

the lifting frame is slidably mounted on the guide rod, an upper ejector block is arranged at the top of the lifting frame, an upper guide hole is formed in the upper ejector block, a lower connecting block is arranged at the bottom of the lifting frame, a lower guide hole is formed in the lower connecting block, the upper guide hole and the lower guide hole are coaxially arranged, the guide rod slidably passes through the upper guide hole and the lower guide hole, a compression spring is further arranged at the top of the guide rod, the compression spring is wound on the guide rod, and the bottom end of the compression spring is fixed in the hole wall of the upper guide hole;

the clamping and locking assembly is arranged between the lifting frame and the base, and the lifting frame drives the clamping and locking assembly to control the rotation of the yarn winding rotary seat;

the yarn guiding wheel set comprises a fixed yarn guiding wheel and a lifting yarn guiding wheel, the adjusting control module is further provided with a switching block and a lower cantilever mounting block, the switching block is fixedly mounted on the fixed connecting block, the fixed yarn guiding wheel is rotatably mounted on the switching block, the lower cantilever mounting block is arranged on the lifting frame, the lifting yarn guiding wheel is rotatably mounted on the lower cantilever mounting block, and when the lifting yarn guiding wheel receives yarn lifting tension, the lower cantilever mounting block drives the lifting frame to lift along the guide rod.

9. The ultra-thick curved body three-dimensional braiding apparatus according to claim 8, wherein: the locking assembly comprises a clamping piece and a plurality of clamping tooth grooves,

the clamping piece is arranged on one side, close to the base, of the lower connecting block, the clamping tooth grooves are arranged on the yarn winding rotary seat, the clamping tooth grooves are circumferentially arranged on the outer side of the yarn winding rotary seat, and when the clamping piece is clamped into the clamping tooth grooves, the yarn winding rotary seat is locked to rotate; when the lifting frame is lifted to drive the clamping piece to move upwards, the clamping piece is separated from the clamping tooth slot.

10. A control method of a three-dimensional braiding apparatus for an ultra-thick curved body, which is adapted to the three-dimensional braiding apparatus for an ultra-thick curved body according to claim 2, comprising the steps of:

s1, in the yarn spindle yarn releasing process, the motor drives the screw rod to rotate, the screw rod rotates to drive the linkage sliding block to slide, in the linkage sliding block sliding process, the first swing rod and the second swing rod are driven to swing in opposite directions, and the first swing rod and the second swing rod respectively drive the odd ring and the even ring to rotate in different directions;

s2, when the odd-numbered rings and the even-numbered rings stop rotating, the radial driving assembly drives the radial sliding blocks to move in the radial sliding grooves and pushes the radial sliding blocks in the odd-numbered rings into the even-numbered rings, and the radial sliding blocks in the even-numbered rings are pushed into the odd-numbered rings;

s3, the motor reversely rotates, the linkage sliding block slides in the opposite direction to the step S1, and the odd ring and the even ring rotate in the opposite direction to the step S1;

s4, the radial driving assembly drives the radial sliding block to slide in the radial sliding groove in the direction opposite to the direction of the step S2;

s5, repeating the steps from S1 to S4 until the programming is finished.