CN116732685A - Automatic 2.5D conical rotary body preform weaving system and method - Google Patents

Abstract

The invention discloses an automatic weaving system and method for a 2.5D conical rotary body preform, and belongs to the technical field of textile weaving. The system comprises a stem system, a yarn hanging system and a jacquard head system; the core column system comprises a core column, a core mould driving device and a replaceable fabric core mould, wherein the core mould driving device is connected with the replaceable fabric core mould; the yarn hanging system comprises an upright post, a yarn hanging platform, a heald frame sliding rail, a round heald frame and a plurality of groups of yarn carrying devices, wherein the yarn carrying devices are movably connected in the round heald frame and carry out circular motion in the round heald frame through yarn traction; the jacquard head system comprises a driving trolley and a jacquard head, wherein the driving trolley is connected with the jacquard head and movably connected with the core column. The invention can weave 2.5D rotary body prefabricated parts with different shape requirements, realizes the efficient production of various fabrics with different specifications, has flexibly adjustable fabric organization structure, greatly reduces the manufacturing cost of fiber prefabricated body products, and improves the molding quality and the production efficiency of the rotary body prefabricated parts.

Description

Automatic 2.5D conical rotary body preform weaving system and method

Technical Field

The invention relates to an automatic weaving system and method for a 2.5D conical rotary body preform, and belongs to the technical field of weaving.

Background

The advanced textile composite material has the advantages of high specific strength and high specific modulus and is widely applied to the field of aerospace. The 2.5D woven composite material is a main application material of conical revolving body components such as a jet pipe of an aerospace engine, a radome of the aerospace engine, a flame tube of a combustion chamber of the aerospace engine and the like due to excellent mechanical property, flexible structural design and overall near net forming capability.

At present, two preparation modes of 2.5D conical rotary parts exist. One is to prepare a flat plate member by conventional 2.5D weaving techniques and then to prepare a conical rotor by compounding a specific mold with a matrix. However, the preform is subjected to deformation such as torsion and shearing in the compounding process, which causes problems such as more initial defects of the material and unstable material performance caused by uneven yarn distribution in the revolving body component. Another method is to modify the let-off mechanism and the crimping mechanism on a traditional 2.5D loom, weave a 2.5D conical rotor, and then combine it with the matrix to produce the rotor component.

However, the traditional 2.5D weaving technology adopts an automatic and semi-automatic method, has high cost and unstable product quality, requires a large amount of manpower and material resources for equipment refitting, and easily causes the problems of unclear openings, difficult yarn tension control and the like due to the large number of warp yarns required by the 2.5D preform in the weaving process, so that the weaving difficulty of the 2.5D conical rotary body preform is large and the efficiency is low.

Disclosure of Invention

In order to solve the problems, the invention provides an automatic 2.5D conical rotary body preform weaving system and method. The invention adopts a mode of circularly introducing weft yarns to bind multiple layers of warp yarns together to form the conical revolving body fabric based on the circular knitting technology, can effectively improve the production efficiency and the product formability of the 2.5D conical revolving body preform, and can realize the weaving of the fabric with structure change.

The first object of the invention is to provide an automated 2.5D conical rotary body preform weaving system, which comprises a stem system, a yarn hanging system and a jacquard head system;

the core column system comprises a core column, a core mould driving device and a replaceable fabric core mould, wherein the core mould driving device is connected with the replaceable fabric core mould and is used for driving the replaceable fabric core mould to rotate;

the yarn hanging system comprises a stand column, a yarn hanging platform, a heald frame sliding rail, round heald frames and a plurality of groups of yarn carrying devices, wherein the stand column is arranged on the periphery of the core column, the yarn hanging platform is arranged above the core column, the heald frame sliding rail is fixedly arranged on the stand column, a plurality of round heald frames are movably connected to the heald frame sliding rail, the yarn carrying devices are movably connected in the round heald frames, and the yarn carrying devices carry out circular motion in the round heald frames through yarn traction;

the jacquard head system comprises a driving trolley and a jacquard head, wherein the driving trolley is connected with the jacquard head and movably connected to the core column, and the driving trolley can move up and down along the core column.

In one embodiment of the invention, the mandrel drive is mounted within the stem and the replaceable fabric mandrel is mounted at the end of the stem.

In one embodiment of the invention, the round heald frame is connected with a heald frame motor, and the heald frame motor is used for driving the round heald frame to vertically lift along the heald frame sliding track.

In one embodiment of the invention, a tension frame is arranged on the yarn carrier, a fixed roller and a movable roller are arranged on the tension frame, the fixed roller is contacted with the movable roller, the movable roller is connected with a yarn winding motor, and the yarn winding motor is used for driving the movable roller to rotate.

In one embodiment of the invention, the jacquard head system further comprises a first driving arm and a second driving arm, the driving trolley is connected with the core column through a sliding bearing, one end of the first driving arm is rotationally connected with the driving trolley through a first driving arm motor, one end of the second driving arm is rotationally connected with the other end of the first driving arm through a second driving arm motor, and the jacquard head is rotationally connected with the other end of the second driving arm through a jacquard head motor.

In one embodiment of the invention, the jacquard head comprises a weft yarn detection device with an inductor, a fixed rail, a limiting plate, a pushing rod, a weft insertion rod and a telescopic yarn cutter, wherein the limiting plate is positioned at the tail end of the inside of the jacquard head and connected with the pushing rod, the pushing rod is connected with the weft insertion rod, the fixed rail is positioned at the front end of the weft insertion rod, the weft yarn detection device is arranged above the fixed rail, and the telescopic yarn cutter is arranged at the front end of the inside of the jacquard head.

In one embodiment of the invention, the weft yarn detection device, the pushing rod and the weft insertion rod are positioned at the same longitudinal section position inside the jacquard head; and a plurality of groups of weft yarn detection devices, pushing rods and weft insertion rods are arranged at different positions of the inner cross section of the jacquard head.

In one embodiment of the invention, the yarn cutting device further comprises a control system, wherein the control system is electrically connected with the mandrel driving device, the heald frame motor, the yarn winding motor, the driving trolley, the first driving arm motor, the second driving arm motor, the jacquard head motor, the sensor of the weft yarn detecting device and the telescopic yarn cutting knife.

In one embodiment of the invention, the heald frame motor is a linear motor.

A second object of the present invention is to provide an automated 2.5D conical rotary preform weaving method, to which the automated 2.5D conical rotary preform weaving system is applied, the method comprising the steps of:

inputting specifications of a replaceable fabric core mould and fabric weaving parameters in a control system, and enabling yarns to pass through a yarn carrier after bypassing a fixed roller and a movable roller on a yarn hanging platform according to design requirements, so as to be fixed at the bottom of the replaceable fabric core mould;

step two, weaving is executed in a control system, the control system controls a mandrel driving device to drive a replaceable fabric mandrel to rotate, the control system controls a heald frame motor to draw different round heald frames to vertically lift and move so as to control fabric openings, and meanwhile, the control system controls a yarn winding motor to drive a movable roller to rotate so as to adjust the tension of each warp yarn and output the warp yarn in the lifting process of the round heald frames;

step three, after the opening is finished, the core mould driving device pauses operation, a driving trolley, a first driving arm motor, a second driving arm motor and a jacquard head motor are controlled by a control system to adjust two jacquard heads to be at certain diagonal positions and correspond to corresponding weft insertion positions, a weft insertion rod is pushed to the interior of the other jacquard head through a pushing rod in the jacquard machine to finish one weft insertion, and the jacquard heads are controlled to move downwards to tighten weft yarns through the driving trolley;

step four, after the weft is tightened, determining weft insertion quantity through a weft detection device, and controlling a telescopic yarn cutter to cut the weft by a control system to finish weaving of an interweaving point; the control system controls the mandrel driving device to intermittently rotate, the movable roller adjusts warp tension, the heald frame motor controls the lifting of the round heald frame, the driving trolley, the first driving arm motor, the second driving arm motor and the jacquard head motor adjust the positions of two jacquard heads, and the weft yarn detecting device displays the weft yarn state to finish beating-up, and then the control system controls the telescopic yarn cutter to cut weft yarn and repeats the movement to finish one weaving period of the fabric;

and fifthly, each system finishes weaving the 2.5D conical rotary body preform according to the input weaving parameters achieved by the cyclic motion.

Advantageous effects

(1) According to the invention, the tension frame is arranged on each yarn carrier, and the real-time monitoring and control of the warp tension is realized by connecting the control system with the yarn winding motor on the tension frame, so that the warp tension adjusting quality is remarkably improved. Secondly, the control system is used for controlling the warp feeding amount by operating the yarn winding motor, so that the problem that the warp elongation is inconsistent and difficult to weave when the fabric weave structure is changed is solved.

(2) According to the invention, the 2.5D conical rotary body preform is automatically woven through the control system, so that the manual operation cost required by weft insertion and beating-up is reduced. Further, the accurate monitoring and control of the yarn hanging system and the jacquard system by the control system reduces adverse effects caused by uneven yarn tension, yarn weaving entanglement, artificial misoperation and the like in the weaving process.

(3) The 2.5D conical rotary body prefabricated body automatic weaving system can weave 2.5D rotary body prefabricated bodies with different shape requirements by replacing the core mold, and realizes the efficient production of various fabrics with various specifications.

(4) The invention realizes the automatic weaving of the 2.5D conical rotary body preform, the yarn carrier improves the warp tension adjusting quality, the fabric organization structure can be flexibly adjusted, the manufacturing cost of the fiber preform product is greatly reduced, and the forming quality and the production efficiency of the rotary body preform are improved.

Drawings

FIG. 1 is a schematic diagram of an automated 2.5D conical gyrorotor preform weaving system according to the present invention;

FIG. 2 is a schematic view of the structure of the yarn hanging system of the present invention with the posts removed;

FIG. 3 is a schematic view of the yarn carrier of the present invention;

FIG. 4 is a schematic view of the different round heald frames of the present invention performing a lifting motion to complete the fabric opening;

FIG. 5 is a schematic diagram of the structure of the jacquard head system of the present invention;

FIG. 6 is a front view of the internal structure of the jacquard head of the present invention;

FIG. 7 is a side view of the internal structure of the jacquard head of the present invention;

fig. 8 is a schematic diagram of the operation of the control system of the present invention.

Wherein; 1. a stem; 2. a mandrel driving device; 3. a replaceable fabric mandrel; 4. a column; 5. a heald frame sliding rail; 6. round heald frames; 61. a yarn carrier; 62. a fixed roller; 63. a movable roller; 64. a tension bracket; 7. driving a trolley; 71. a sliding bearing; 72. a first driving arm; 73. a second driving arm; 8. jacquard head; 81. weft yarn detecting means, 82, fixed rail; 83. a limiting plate; 84. a propulsion rod; 85. weft insertion rods; 86. a retractable yarn cutter; 9. a control system; 10. warp yarns; 11. a fabric; 12. weft yarns; 13. and a yarn hanging platform.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the present invention, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

Example 1

As shown in fig. 1-8, the present embodiment provides an automated 2.5D conical rotary preform weaving system comprising a stem system, a yarn hanging system, a jacquard head system, and a control system 9 for monitoring and operating the entire weaving system.

Optionally, the stem system includes a stem 1, a mandrel driving device 2 and a replaceable fabric mandrel 3, the mandrel driving device 2 is installed in the stem 1, the replaceable fabric mandrel 3 is installed at the end of the stem 1, the mandrel driving device 2 is connected with the replaceable fabric mandrel 3, and the mandrel driving device 2 is used for driving the replaceable fabric mandrel 3 to rotate.

Optionally, the yarn hanging system comprises a stand column 4, a yarn hanging platform 13, a heald frame sliding rail 5, a round heald frame 6 and a plurality of groups of yarn carrying devices 61, wherein the stand column 4 is installed on the periphery of the core column 1, the yarn hanging platform 13 is installed above the core column 1, the heald frame sliding rail 5 is fixedly installed on the stand column 4, the round heald frame 6 is movably connected to the heald frame sliding rail 5, and the round heald frame 6 is connected with a heald frame motor (not shown in the figure) which is used for driving the round heald frame 6 to vertically lift along the heald frame sliding rail 5. Optionally, the heald frame motor is a linear motor. Wherein groups of round heald frames 6 can be installed according to weaving requirements. The yarn carrier 61 is movably connected in the round heald frame 6, and the yarn carrier 61 can perform circular motion in the round heald frame 6 by yarn traction. The yarn carrier 61 is provided with a tension frame 64, the tension frame 64 is provided with a fixed roller 62 and a movable roller 63, the fixed roller 62 is in contact with the movable roller 63, the movable roller 63 is connected with a yarn winding motor, and the yarn winding motor is used for driving the movable roller to rotate. Optionally, an output shaft of the yarn winding motor is arranged in the movable roller, and the yarn winding motor drives the movable roller to rotate through rotation of the output shaft of the yarn winding motor.

Optionally, the jacquard head system comprises a driving trolley 7, a first driving arm 72, a second driving arm 73 and a jacquard head 8, wherein the driving trolley 7 is connected with the core column 1 through a sliding bearing 71, the driving trolley 7 can vertically lift along the core column 1, one end of the first driving arm 72 is rotationally connected with the driving trolley 7 through a first driving arm motor, one end of the second driving arm 73 is rotationally connected with the other end of the first driving arm 72 through a second driving arm motor, and the jacquard head 8 is rotationally connected with the other end of the second driving arm 73 through a jacquard head motor.

Further, the jacquard head 8 comprises a weft yarn detecting device 81 with an inductor, a fixed rail 82, a limiting plate 83, a pushing rod 84, a weft inserting rod 85 and a telescopic yarn cutter 86, wherein the limiting plate 83 is positioned at the tail end of the inside of the jacquard head 8 and is connected with the pushing rod 84, the pushing rod 84 is connected with the weft inserting rod 85, the fixed rail 82 is positioned at the front end of the weft inserting rod 85, the weft yarn detecting device 81 is installed above the fixed rail 82, and the telescopic yarn cutter 86 is installed at the front end of the inside of the jacquard head 8. The weft yarn detecting device 81, the pushing rod 84 and the weft inserting rod 85 are arranged at the same longitudinal section position in the jacquard head 8, and a plurality of groups of weft yarn detecting devices 81, pushing rods 84 and weft inserting rods 85 can be arranged at different positions of the inner cross section of the jacquard head 8 according to weaving requirements.

Optionally, the control system 9 is electrically connected to the mandrel driving device 2, the heald frame motor, the yarn winding motor, the driving trolley 7, the first driving arm motor, the second driving arm motor, the jacquard head motor, the sensor of the weft yarn detecting device 81 and the retractable yarn cutter 86, and the control system 9 is used for receiving the working signals of the mandrel driving device 2, the heald frame motor, the yarn winding motor, the driving trolley 7, the first driving arm motor, the second driving arm motor, the jacquard head motor and the sensor of the weft yarn detecting device 81 and controlling the movement amounts of the mandrel driving device 2, the heald frame motor, the yarn winding motor, the driving trolley 7, the first driving arm motor, the second driving arm motor, the jacquard head motor and the retractable yarn cutter 86. The tension and the elongation of each yarn can be controlled by controlling the yarn winding motor to drive the movable roller 63 to rotate, and the yarn winding motor can be used for weaving the 2.5D fabric with the structure changed. By controlling the amount of movement of the mandrel drive 2 and the drive trolley 7, the weft density of the fabric can be varied during the weaving process.

In the 2.5D conical rotary body preform automatic weaving system provided by the embodiment, corresponding parameter values are input through the control system 9 in the weaving process, and different yarns are distributed according to design requirements to pass through the yarn carrier 61 in the corresponding round heald frame 6. As shown in fig. 2 and 3, the yarn first bypasses the fixed roller 62 and the movable roller 63 and then passes through the carrier 61. One end of the yarn is then fixed to the bottom end of the exchangeable fabric core mold 3. The control system 9 executes a start command to the mandrel driving device 2, the mandrel driving device 2 drives the replaceable fabric mandrel 3 to rotate for a certain angle, as shown in fig. 4, the heald frame motor controls different round heald frames 6 to perform corresponding lifting movement to finish yarn opening, and meanwhile, the movable roller 63 controls the tension of the warp yarns 10 and outputs the warp yarns 10 in the lifting process of the round heald frames 6. After the opening is finished, the core mold driving device 2 pauses, the driving trolley 7, the first driving arm motor, the second driving arm motor and the jacquard head motor are controlled to respectively control the first driving arm 72, the second driving arm 73 and the jacquard head 8 to reach the designated weft insertion position (the first driving arm motor, the second driving arm motor and the jacquard head motor are not shown in the drawing), the push rod 84 inside the jacquard head 8 pushes the weft insertion rod 85 to the other jacquard head 8 to finish weft insertion, and then the driving trolley 7 is used for controlling the jacquard head 8 to move downwards to tighten the weft yarns 12. After the tightening of the weft thread 12, the control system 9 controls the retractable cutter 86 to cut the weft thread 12 in case the weft thread detecting means 81 determines that the weft thread state and the weft insertion amount are accurate. The weft insertion amount is adjusted by adjusting the position of the jacquard head 8 and the mandrel driving device 2 under the abnormal condition of weft state and weft insertion amount. And then controlling the movement amounts of the mandrel driving device 2, the round heald frame 6, the yarn winding motor, the driving trolley 7, the first driving arm motor, the second driving arm motor, the jacquard head motor, the pushing rod 84, the weft insertion rod 85 and the telescopic yarn cutter 86 according to the parameters input in the control system 9, and repeating the above procedures to automatically weave the 2.5D prefabricated member with the corresponding conical revolving body shape.

Example 2

The embodiment provides an automatic 2.5D conical rotary body preform weaving method, which uses the 2.5D conical rotary body preform automatic weaving system provided in the embodiment 1, and comprises the following steps:

firstly, inputting specifications of a replaceable fabric core mould and weaving parameters of the fabric 11 into a control system 9, and enabling yarns to pass through a yarn carrier 61 after bypassing a fixed roller 62 and a movable roller 63 on a yarn hanging platform 13 according to design requirements, so as to be fixed at the bottom of the replaceable fabric core mould 3;

step two, weaving is executed in a control system 9, the control system 9 controls a mandrel driving device 2 to drive a replaceable fabric mandrel 3 to rotate, the control system 9 controls a heald frame motor to draw different round heald frames 6 to vertically lift and move so as to control the opening of a fabric 11, and meanwhile, the control system 9 controls a yarn winding motor to drive a movable roller 63 to rotate so as to adjust the tension of each warp yarn 10 and output the warp yarn 10 in the lifting process of the round heald frames 6;

step three, after the opening is finished, the mandrel driving device 2 pauses, the driving trolley 7, the first driving arm motor, the second driving arm motor and the jacquard head motor are controlled by the control system 9 to adjust the two jacquard heads to be at certain diagonal positions and correspond to the corresponding weft insertion positions, the weft insertion rod 85 is pushed to the inside of the other jacquard head 8 through the push rod 84 in the jacquard machine 8 to finish one weft insertion, and the jacquard head 8 is controlled to move downwards to tighten the weft yarns 12 through the driving trolley 7;

step four, after the weft yarn 12 is tightened, determining weft insertion quantity through a weft yarn detection device 81, and controlling a telescopic yarn cutter 86 to cut the weft yarn 12 by a control system 9 to finish weaving of an interweaving point; the control system 9 controls the mandrel driving device 2 to intermittently rotate, the movable roller 63 adjusts the tension of warp yarns 10, the heald frame motor controls the lifting of the round heald frame 6, the driving trolley 7, the first driving arm motor, the second driving arm motor and the jacquard head motor adjust the positions of the two jacquard heads 8, the weft yarn detecting device 81 displays the weft yarn state, and after the weft yarn is beaten up, the control system 9 controls the telescopic yarn cutter 86 to cut weft yarns 12, and one weaving period of the fabric is completed by repeating the movements;

and fifthly, each system finishes weaving the 2.5D conical rotary body preform according to the input weaving parameters achieved by the cyclic motion.

While the invention has been described with reference to the preferred embodiments, it is not limited thereto, and various changes and modifications can be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (10)

1. The 2.5D conical rotary body preform automatic weaving system is characterized by comprising a stem system, a yarn hanging system and a jacquard head system;

the core column system comprises a core column, a core mould driving device and a replaceable fabric core mould, wherein the core mould driving device is connected with the replaceable fabric core mould and is used for driving the replaceable fabric core mould to rotate;

the yarn hanging system comprises a stand column, a yarn hanging platform, a heald frame sliding rail, round heald frames and a plurality of groups of yarn carrying devices, wherein the stand column is arranged on the periphery of the core column, the yarn hanging platform is arranged above the core column, the heald frame sliding rail is fixedly arranged on the stand column, a plurality of round heald frames are movably connected to the heald frame sliding rail, the yarn carrying devices are movably connected in the round heald frames, and the yarn carrying devices carry out circular motion in the round heald frames through yarn traction;

the jacquard head system comprises a driving trolley and a jacquard head, wherein the driving trolley is connected with the jacquard head and movably connected to the core column, and the driving trolley can move up and down along the core column.

2. The automated 2.5D conical rotary preform weaving system of claim 1 wherein the mandrel drive is mounted within the stem and the replaceable fabric mandrel is mounted at an end of the stem.

3. The automated 2.5D conical rotary preform weaving system of claim 2 wherein the round heald frame is connected to a heald frame motor for driving the round heald frame in a vertical lifting motion along the heald frame sliding track.

4. The automated 2.5D conical rotary preform weaving system according to claim 3, wherein a tension frame is mounted on the yarn carrier, a fixed roller and a movable roller are mounted on the tension frame, the fixed roller is in contact with the movable roller, the movable roller is connected with a yarn winding motor, and the yarn winding motor is used for driving the movable roller to rotate.

5. The automated 2.5D tapered gyrorotor preform weaving system of claim 4, wherein the jacquard head system further comprises a first drive arm and a second drive arm, the drive trolley is connected with the stem through a sliding bearing, one end of the first drive arm is rotatably connected with the drive trolley through a first drive arm motor, one end of the second drive arm is rotatably connected with the other end of the first drive arm through a second drive arm motor, and the jacquard head is rotatably connected with the other end of the second drive arm through a jacquard head motor.

6. The automated 2.5D tapered gyrorotor preform weaving system of claim 5, wherein the jacquard head comprises a weft yarn detection device with an inductor, a fixed rail, a limiting plate, a push rod, a weft insertion rod and a retractable yarn cutter, wherein the limiting plate is positioned at the tail end of the inside of the jacquard head and is connected with the push rod, the push rod is connected with the weft insertion rod, the fixed rail is positioned at the front end of the weft insertion rod, the weft yarn detection device is arranged above the fixed rail, and the retractable yarn cutter is arranged at the front end of the inside of the jacquard head.

7. The automated 2.5D conical rotary preform weaving system of claim 6 wherein the weft yarn detection device, push rod, weft insertion rod are at the same longitudinal cross-sectional location inside the jacquard head; and a plurality of groups of weft yarn detection devices, pushing rods and weft insertion rods are arranged at different positions of the inner cross section of the jacquard head.

8. The automated 2.5D conical rotary preform weaving system of claim 7, further comprising a control system electrically coupled to the mandrel drive, the heald frame motor, the yarn winding motor, the drive trolley, the first drive arm motor, the second drive arm motor, the jacquard head motor, the sensor of the weft yarn detection device, and the retractable yarn cutter.

9. The automated 2.5D conical rotary preform weaving system of claim 8, wherein the heald frame motor is a linear motor.

10. An automated 2.5D conical rotary preform weaving method, characterized in that a 2.5D conical rotary preform automated weaving system according to any one of claims 1 to 9 is applied, the method comprising the steps of:

inputting specifications of a replaceable fabric core mould and fabric weaving parameters in a control system, and enabling yarns to pass through a yarn carrier after bypassing a fixed roller and a movable roller on a yarn hanging platform according to design requirements, so as to be fixed at the bottom of the replaceable fabric core mould;

step two, weaving is executed in a control system, the control system controls a mandrel driving device to drive a replaceable fabric mandrel to rotate, the control system controls a heald frame motor to draw different round heald frames to vertically lift and move so as to control fabric openings, and meanwhile, the control system controls a yarn winding motor to drive a movable roller to rotate so as to adjust the tension of each warp yarn and output the warp yarn in the lifting process of the round heald frames;

step three, after the opening is finished, the core mould driving device pauses operation, a driving trolley, a first driving arm motor, a second driving arm motor and a jacquard head motor are controlled by a control system to adjust two jacquard heads to be at certain diagonal positions and correspond to corresponding weft insertion positions, a weft insertion rod is pushed to the interior of the other jacquard head through a pushing rod in the jacquard machine to finish one weft insertion, and the jacquard heads are controlled to move downwards to tighten weft yarns through the driving trolley;

step four, after the weft is tightened, determining weft insertion quantity through a weft detection device, and controlling a telescopic yarn cutter to cut the weft by a control system to finish weaving of an interweaving point; the control system controls the mandrel driving device to intermittently rotate, the movable roller adjusts warp tension, the heald frame motor controls the lifting of the round heald frame, the driving trolley, the first driving arm motor, the second driving arm motor and the jacquard head motor adjust the positions of two jacquard heads, and the weft yarn detecting device displays the weft yarn state to finish beating-up, and then the control system controls the telescopic yarn cutter to cut weft yarn and repeats the movement to finish one weaving period of the fabric;

and fifthly, each system finishes weaving the 2.5D conical rotary body preform according to the input weaving parameters achieved by the cyclic motion.