CN116811302A - Multi-tow fiber circumferential winding equipment capable of automatically feeding yarns and yarn feeding method - Google Patents
Multi-tow fiber circumferential winding equipment capable of automatically feeding yarns and yarn feeding method Download PDFInfo
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- CN116811302A CN116811302A CN202311092649.6A CN202311092649A CN116811302A CN 116811302 A CN116811302 A CN 116811302A CN 202311092649 A CN202311092649 A CN 202311092649A CN 116811302 A CN116811302 A CN 116811302A
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- 238000004804 winding Methods 0.000 title claims abstract description 97
- 239000000835 fiber Substances 0.000 title claims abstract description 80
- 238000000034 method Methods 0.000 title claims abstract description 27
- 230000005540 biological transmission Effects 0.000 claims abstract description 61
- 230000007246 mechanism Effects 0.000 claims abstract description 29
- 210000000078 claw Anatomy 0.000 claims description 95
- 230000000712 assembly Effects 0.000 claims description 12
- 238000000429 assembly Methods 0.000 claims description 12
- 238000001514 detection method Methods 0.000 claims description 10
- 238000007599 discharging Methods 0.000 claims description 10
- 230000008859 change Effects 0.000 claims description 8
- 230000009471 action Effects 0.000 claims description 7
- 230000005484 gravity Effects 0.000 claims description 3
- 230000003139 buffering effect Effects 0.000 claims description 2
- 230000008569 process Effects 0.000 abstract description 15
- 229920000049 Carbon (fiber) Polymers 0.000 abstract description 3
- 239000004917 carbon fiber Substances 0.000 abstract description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 4
- 229910052739 hydrogen Inorganic materials 0.000 description 4
- 239000001257 hydrogen Substances 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/66—Disintegrating fibre-containing textile articles to obtain fibres for re-use
Abstract
The invention belongs to the technical field of carbon fiber winding, and solves the problems that gaps exist during multi-beam circumferential winding, stacking exists, and manual assistance is needed for yarn feeding. The clamping mechanism is used for rotationally clamping a core mold to be wound, and the circumferential winding device, the auxiliary yarn feeding device and the core mold are coaxially arranged; the rotating discs are fixedly connected to the inner ring of the first rotary support, and two adjacent rotating discs are arranged in the axial direction of the core mould to be wound at intervals by a fiber yarn bundle bandwidth; all yarn clamping components are circumferentially distributed along the first transmission gear and are rotationally connected with the first transmission gear, so that clamping and winding of fiber yarn bundles can be realized; the yarn clamping components of the auxiliary yarn feeding device are in one-to-one correspondence with the yarn feeding units of the rotating disc of the circumferential winding device, and the yarn clamping components and the yarn feeding units are matched to realize auxiliary yarn feeding of multiple bundles of fiber yarns. The invention can automatically feed yarn, has no gap or stacking problem in the winding process, and can improve the strength of the winding product.
Description
Technical Field
The invention belongs to the technical field of carbon fiber winding, and particularly relates to multi-tow fiber circumferential winding equipment capable of automatically feeding yarns and a yarn feeding method.
Background
The high-pressure hydrogen storage container has the advantages of light weight, high strength, high charging and discharging speed and the like, and along with the continuous development of the hydrogen energy industry, the hydrogen storage containers with the same specification are required to bear larger load, and the carbon fiber composite material layers of the high-pressure hydrogen storage container mostly adopt a fiber winding process.
The existing multi-beam circumferential winding adopts a yarn splitting and yarn collecting process, so that the problems of gaps, stacking and the like exist during winding, and the strength and fatigue life of a wound product are greatly influenced; and the work of yarn feeding needs manual assistance, which increases inconvenience and cost in multi-beam circumferential winding.
Disclosure of Invention
The invention provides multi-tow fiber circumferential winding equipment capable of automatically feeding yarns and a yarn feeding method thereof, aiming at solving at least one technical problem in the prior art.
The invention is realized by adopting the following technical scheme: the multi-tow fiber circumferential winding equipment capable of automatically feeding yarns comprises a circumferential winding device, an auxiliary yarn feeding device, a guide rail and two clamping mechanisms, wherein the circumferential winding device and the auxiliary yarn feeding device are positioned between the two clamping mechanisms and are in sliding connection with the guide rail, the clamping mechanisms are used for rotationally clamping a core mold to be wound, and the circumferential winding device, the auxiliary yarn feeding device and the core mold are coaxially arranged; the circumferential winding device comprises a first frame, a first rotary support, at least two rotary discs, a yarn feeding unit and a first yarn breaking unit; the outer ring of the first rotary support is fixed on the first frame, the inner ring can rotate under the drive of the first power source, all the rotating disks are fixedly connected to the inner ring of the first rotary support, and two adjacent rotating disks are arranged in the axial direction of a core mold to be wound at intervals by one fiber yarn bundle bandwidth and are used for realizing stacking-free and gapless circumferential winding of multiple yarn bundle bandwidths; a yarn feeding unit and a first yarn breaking unit are arranged on any rotating disk, wherein the yarn feeding unit is used for realizing yarn discharging of fiber yarn bundles, and the first yarn breaking unit is used for realizing cutting of the fiber yarn bundles between the auxiliary yarn feeding device and the core mold after auxiliary yarn feeding is completed; the auxiliary yarn feeding device comprises a second frame, a second rotary support, a first transmission gear, at least two yarn clamping assemblies and a second yarn breaking unit; the outer ring of the second rotary support is fixedly connected to the second frame, the inner ring is fixedly connected to the first transmission gear, and the first transmission gear can rotate under the drive of the second power source; all yarn clamping assemblies are circumferentially distributed along the first transmission gear and are rotationally connected with the first transmission gear, each yarn clamping assembly is independently controlled, and clamping and winding of fiber yarn bundles can be realized under the action of a third power source corresponding to each yarn clamping assembly; the yarn clamping components of the auxiliary yarn feeding device are in one-to-one correspondence with the yarn feeding units of the rotating disc of the circumferential winding device, and the yarn clamping components and the yarn feeding units are matched to realize auxiliary yarn feeding of a plurality of fiber yarn bundles; the second yarn breaking unit is used for cutting off the fiber yarn bundles wound on the outer side of the yarn clamping assembly after the auxiliary yarn feeding is completed.
Preferably, the yarn feeding unit comprises a yarn feeding roller, a guide roller, a tension detection roller, a guide frame, a radial feeding motor, a screw rod, a sliding block and a yarn feeding tube, wherein the yarn feeding roller is arranged on the rotating disc and can control the tension of a discharged yarn bundle through the servo motor; the guide frame is fixedly connected to the edge of one side of the rotary disk, the radial feeding motor, the lead screw, the sliding block and the track form a linear reciprocating mechanism, the yarn feeding tube is fixedly connected to the sliding block and is arranged in the guide groove of the guide frame, and the yarn feeding tube is driven by the radial feeding motor to realize radial expansion; the first yarn breaking unit comprises a first linear module and a first cutting knife, the first linear module is fixed on the guide frame, the first linear module and the first cutting knife are parallel to the yarn feeding tube, and the first cutting knife is fixedly connected with a sliding block of the first linear module and can radially stretch and retract under the drive of a motor of the first linear module so as to realize cutting of fiber yarn bundles between the auxiliary yarn feeding device and the core die.
Preferably, the tension detection roller is slidably connected to the rotary disk through a T-shaped groove, and the yarn feeding unit further comprises a fixed roller which is fixed on the rotary disk and is connected with the tension detection roller through a spring, so that the real-time tension change can be buffered; the rotating disk is fixedly connected with the inner ring of the first rotary support through a first connecting shaft, and the inner ring of the first rotary support is provided with inner teeth which are meshed with a first power source gear of the first power source for transmission.
Preferably, the yarn feeding tube is of a slide type structure, a flat yarn feeding channel is formed in the yarn feeding tube, and both ends of the yarn feeding tube are rounded; the sliding block comprises a nut in threaded connection with the screw rod and a nut supporting seat sleeved on the outer side of the nut, and the nut supporting seat is in sliding clamping connection with the track; the yarn feeding tube is fixedly connected with the nut supporting seat through a cushion block; the screw rod is connected with the radial feeding motor through the coupling, and a group of stop blocks and screw rod supporting seats are arranged at two ends of the screw rod.
Preferably, the extension lines of the yarn outlet ends of all yarn feeding tubes are intersected on the central axis of the core mould to be wound, and the interval between two adjacent intersection points is a fiber bandwidth; the first cutter is positioned on one side of the guide frame far away from the rotary disk.
Preferably, the yarn clamping assembly comprises a second transmission gear, a worm shaft, a first worm wheel with a connecting rod, a second worm wheel with a connecting rod, a first yarn clamping claw, a second yarn clamping claw and a clamping plate; the second transmission gear is meshed with a third power source gear of a third power source for transmission, the worm shaft is connected with the second transmission gear through a key, and one end of the worm shaft, which is far away from the second transmission gear, rotates to pass through the first transmission gear and is meshed with the first worm gear with the connecting rod and the second worm gear with the connecting rod; the first worm gear with the connecting rod and the second worm gear with the connecting rod are rotationally connected in the clamping plate through a pin shaft, the clamping plate is rotationally connected with a first connecting rod and a second connecting rod through a pin shaft, the connecting rod and the first connecting rod of the worm gear with the connecting rod are respectively rotationally connected with the claw arm of the first yarn clamping claw through the pin shaft, and the connecting rod and the second connecting rod of the worm gear with the connecting rod are respectively rotationally connected with the claw arm of the second yarn clamping claw through the pin shaft; the first yarn clamping claw, the second yarn clamping claw, the first connecting rod, the second connecting rod, the first worm wheel with the connecting rod and the second worm wheel with the connecting rod are symmetrically arranged relative to the central axis of the worm shaft.
Preferably, the second yarn breaking unit comprises a second linear module and a second cutting knife, the second linear module is fixed at the rear end of the claw head of the first yarn clamping claw, the plane where the second cutting knife is located is perpendicular to the upper end face of the claw head of the first yarn clamping claw, and the second cutting knife is fixedly connected with the sliding block of the second linear module and can radially stretch and retract under the driving of the motor of the second linear module so as to cut off fiber yarn bundles wound on the outer side of the first yarn clamping claw.
Preferably, the second rack is of a disc-shaped structure, the lower end of the second rack is connected with a clamping piece, and the clamping piece is in sliding connection with the guide rail through a sliding piece; the second rack is fixedly connected with the outer ring of the second rotary support through a second connecting shaft, the first transmission gear is fixed with the inner ring bolt of the second rotary support, and the first transmission gear is meshed and transmitted with the second power source gear of the second power source; the first frame and the two clamping mechanisms are both in sliding connection with the guide rail through a sliding piece.
Preferably, the number of the rotating disc and the yarn clamping assembly is four.
The invention also provides a yarn feeding method of the multi-tow fiber circumferential winding equipment capable of automatically feeding yarns, which comprises the following steps:
s1: the first power source drives the rotating disc to rotate, so that the yarn outlet end of the yarn feeding tube on the first rotating disc is vertically downward;
s2: the second power source drives the first transmission gear to rotate until the position of the head of the yarn clamping assembly is aligned with the yarn outlet end of the yarn feeding tube corresponding to the head of the yarn clamping assembly; the third power source drives the second transmission gear to rotate, so that the yarn clamping assemblies rotate relative to the first transmission gear, and the angles of the heads of the yarn clamping assemblies and the yarn outlet ends of the corresponding yarn feeding tubes are respectively adjusted to be mutually perpendicular;
s3: the method comprises the steps of installing a core mould, driving an auxiliary yarn feeding device to approach to a circumferential winding device, controlling a first yarn clamping claw and a second yarn clamping claw of a first yarn clamping assembly to open by a preset angle through a third power source and a worm gear mechanism, and keeping the rest groups of first yarn clamping claws and second yarn clamping claws closed;
s4: under the action of gravity, the fiber yarn bundles of the yarn feeding tube on the first rotary disk drop downwards, and when the yarn bundles fall into the first yarn clamping claw and the second yarn clamping claw of the first yarn clamping assembly, the auxiliary yarn feeding device stops moving; the first yarn clamping claw and the second yarn clamping claw are controlled to be closed and rotate by a third power source and a worm and gear mechanism, so that the fiber yarn bundles are wound on the outer sides of the two yarn clamping claws;
s5: the auxiliary yarn feeding device is driven to move a distance away from the annular winding device, the first power source drives the rotating disc to rotate, so that the second rotating disc rotates to the position of the first rotating disc before the rotating disc, and the second power source drives the first transmission gear to rotate, so that the second yarn clamping assembly rotates to the position of the first yarn clamping assembly before the rotating disc;
s6: the auxiliary yarn feeding device is driven to approach the annular winding device, the first yarn clamping claw and the second yarn clamping claw of the second yarn clamping assembly are controlled to open by a preset angle through a third power source and a worm gear mechanism, and when yarn bundles on the second rotating disc fall into the first yarn clamping claw and the second yarn clamping claw of the second yarn clamping assembly, the auxiliary yarn feeding device stops moving; the first yarn clamping claw and the second yarn clamping claw are controlled to be closed and rotate by a third power source and a worm and gear mechanism, so that the fiber yarn bundles are wound on the outer sides of the two yarn clamping claws;
s7: referring to the steps S5 and S6, the fiber yarn bundles of the yarn feeding tube on each rotating disc are wound on the outer sides of the two yarn clamping claws corresponding to the fiber yarn bundles;
s8: driving the auxiliary yarn feeding device to move a distance away from the annular winding device, and radially feeding all yarn feeding tubes under the driving of respective radial feeding motors; stopping feeding when the yarn outlet end of the yarn feeding tube is at a preset distance from the mandrel body; the first power source drives all the rotating discs to rotate, stacking-free and gapless circumferential winding with the width of a plurality of yarn bundles is carried out, after a plurality of circles of winding, the output of the first power source is cut off, and the rotating discs stop rotating; the first cutters on all the guiding frames are driven by the motor of the first linear module to radially feed and cut off fiber yarn bundles between the auxiliary yarn feeding device and the core mould;
s9: after the yarn feeding is finished, all the second cutting knives are driven by a motor of the second linear module to radially feed and cut off fiber yarn bundles wound on the outer sides of the first yarn clamping claw and the second yarn clamping claw; simultaneously, the annular winding device integrally moves axially, and simultaneously all yarn feeding tubes rotate in the annular direction, so that the mandrel is subjected to stacking-free and gapless annular winding with the width of a plurality of yarn bundle bandwidths.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the plurality of rotating discs are respectively arranged in the axial direction at intervals of one fiber yarn bundle width, and the plurality of yarn feeding tubes are respectively arranged in the axial direction at intervals of one fiber yarn bundle width, so that the winding efficiency can be improved, the problem of no gap or stacking among a plurality of yarn bundles can be ensured, and the performance of a winding product can be greatly improved.
Considering that the fiber yarn bundles are sheet-shaped and tension exists in the winding process, the invention provides the yarn clamping assembly, the clamping of the yarn clamping claw and the integral rotation of the yarn clamping assembly can be completed skillfully by utilizing the worm double-worm-gear mechanism through one rotation degree of freedom, and compared with the clamping by a simple clamping hand, the clamping of the yarn clamping claw and the integral rotation of the yarn clamping assembly enable the fiber yarn bundles to be firmer on the yarn clamping assembly, and the fiber yarn bundles are prevented from falling off on the yarn clamping assembly in the yarn feeding process, so that yarn feeding failure is caused.
In consideration of the situation that yarn breakage possibly occurs in the winding process, compared with the traditional multi-beam circumferential winding process, the yarn feeding tubes are independently fed for winding, the yarn clamping assemblies corresponding to the yarn feeding tubes can be independently controlled, tension change is detected through the tension detection roller, single-beam yarn breakage can be indirectly detected, and meanwhile, the single-beam yarn feeding method can be realized.
In consideration of the importance of the tension in the winding process, the invention utilizes the good mechanical property of the spring to play a role in buffering and adjusting the abrupt change of the tension on the yarn bundle, meanwhile, the yarn discharging roller is connected with the servo motor, and when the abrupt change of the tension occurs, the servo motor timely changes the resistance moment applied to the yarn discharging roller, thereby achieving the purpose of controlling the tension and improving the strength of a winding product.
Through the cooperation of the multi-filament bundle circumferential winding device and the auxiliary yarn feeding device, the multi-filament bundle circumferential winding device can realize the multi-filament bundle circumferential winding work without gaps and stacks, and can also be separated from manual work to automatically finish yarn feeding. The problems of gaps, stacking and the like in the traditional circumferential winding process are solved, and the performance of a winding product is improved; the situation that the existing multi-beam circumferential winding equipment cannot automatically feed yarns after single-beam yarn breakage is broken through, and winding stability is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the structure of the hoop winding device of the present invention;
FIG. 3 is a schematic view of the structure of the ring winding apparatus of the present invention at the yarn feeding bobbin;
FIG. 4 is a structural cross-sectional view of the present invention at the yarn feeding tube in the hoop winding device;
FIG. 5 is a schematic view of the structure of the auxiliary yarn feeding device of the present invention;
FIG. 6 is an exploded schematic view of the auxiliary yarn feeding device of the present invention;
FIG. 7 is a schematic view of the structure of the yarn clamping assembly of the present invention;
FIG. 8 is a schematic illustration of the process of preparing the present invention for yarn clamping;
FIG. 9 is a schematic view of the structure at A in FIG. 8;
FIG. 10 is a schematic view of the yarn clamping assembly of the present invention completing the yarn clamping and rotating action;
FIG. 11 is a schematic view of the structure at B in FIG. 10;
FIG. 12 is a schematic view of the process of spinning a yarn on the hoop winding device of the present invention;
FIG. 13 is a schematic view of the process of assisting the yarn feeding device with the intermittent yarn of the core mold after yarn feeding is finished;
FIG. 14 is a schematic view of the outside yarn breakage process of the yarn clamping assembly after yarn feeding according to the present invention;
figure 15 is a schematic view of the process of the present invention after finishing the yarn feeding and continuing the circumferential winding operation.
In the figure: 1.1-a first rack; 1.2-a first slewing bearing; 1.3-rotating disc; 1.31-T-shaped slot; 1.4-a yarn feeding roller; 1.5-guiding rolls; 1.6-tension detecting roller; 1.7-guiding the frame; 1.71-guide grooves; 1.8-radial feed motor; 1.9-screw rod; 1.10-sliders; 1.11-yarn feeding tube; 1.12-servo motor; 1.13-a first linear module; 1.14-a first cutter; 1.15-fixed rolls; 1.16-springs; 1.17-cushion blocks; 1.18-coupling; 1.19-stop; 1.20-a screw rod supporting seat; 1.21-a first connecting shaft; 1.22-a first power source gear; 1.23-orbits; 2.1-a second rack; 2.2-a second slewing bearing; 2.3-a first transmission gear; 2.4-a second drive gear; 2.5-worm shaft; 2.6-a first worm gear with a connecting rod; 2.7-a second worm gear with a connecting rod; 2.8-a first yarn gripper; 2.9-a second yarn gripper; 2.10-splints; 2.11-a first link; 2.12-a second link; 2.13-a second linear module; 2.14-a second cutter; 2.15-clamping piece; 2.16-a second connecting shaft; 2.17-a second power source gear; 2.18-a third power source gear; 3-sliding rails; 4-a clamping mechanism; 5-a slider; 6-core mold; 7-fiber yarn bundles.
Detailed Description
Technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the examples of this invention without making any inventive effort, are intended to fall within the scope of this invention.
It should be understood that the structures, proportions, sizes, etc. shown in the drawings are merely for the purpose of understanding and reading the disclosure, and are not intended to limit the scope of the invention, which is defined by the appended claims, and any structural modifications, proportional changes, or dimensional adjustments, which may be made by those skilled in the art, should fall within the scope of the present disclosure without affecting the efficacy or the achievement of the present invention, and it should be noted that, in the present disclosure, relational terms such as first and second are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual relationship or order between such entities.
The present invention provides an embodiment:
as shown in fig. 1, the multi-tow fiber circumferential winding device capable of automatically feeding yarns comprises a circumferential winding device, an auxiliary yarn feeding device, a guide rail 3 and two clamping mechanisms 4, wherein the circumferential winding device and the auxiliary yarn feeding device are positioned between the two clamping mechanisms 4 and are in sliding connection with the guide rail 3 through sliding pieces 5, the clamping mechanisms 4 are used for rotating and clamping a core mold 6 to be wound, and the circumferential winding device, the auxiliary yarn feeding device and the core mold are coaxially arranged.
As shown in fig. 2 to 4, the hoop winding device includes a first frame 1.1, a first rotary support 1.2, four rotating discs 1.3, a yarn feeding unit and a first yarn breaking unit; the outer ring of the first rotary support 1.2 is fixed on the first frame 1.1, the inner ring can rotate under the drive of the first power source, the four rotary discs 1.3 are fixedly connected to the inner ring of the first rotary support 1.2, the four rotary discs 1.3 are respectively arranged at intervals by one fiber yarn bundle bandwidth along the axial direction of a core mould to be wound, and the four rotary discs are used for realizing stacking-free and gapless circumferential winding of the four yarn bundle bandwidths; and any rotating disc 1.3 is provided with a yarn feeding unit and a first yarn breaking unit, wherein the yarn feeding unit is used for realizing yarn discharging of the fiber yarn bundle 7, and the first yarn breaking unit is used for realizing cutting-off of the fiber yarn bundle 7 between the auxiliary yarn feeding device and the core mould after auxiliary yarn feeding is completed.
The yarn feeding unit comprises a yarn discharging roller 1.4, a guide roller 1.5, a tension detecting roller 1.6, a guide rack 1.7, a radial feeding motor 1.8, a screw rod 1.9, a sliding block 1.10, a yarn feeding tube 1.11 and a fixed roller 1.15, wherein the tension detecting roller 1.6 is arranged on a rotary disk 1.3 and is used for detecting tension change in real time, when the tension detecting roller 1.6 detects tension change in real time, the servo motor 1.12 applies different resistance moment to the yarn discharging roller 1.4 so as to control the tension of discharged yarn bundles, and the guide roller 1.5 is fixedly connected on the rotary disk 1.3 and is used for guiding fiber yarn bundles; the guiding frame 1.7 is fixedly connected to the edge of one side of the rotating disc 1.3, the radial feeding motor 1.8, the screw rod 1.9, the sliding block 1.10 and the track 1.23 form a linear reciprocating mechanism, the yarn feeding tube 1.11 is fixedly connected to the sliding block 1.10 and is arranged in the guiding groove 1.71 of the guiding frame 1.7, and the yarn feeding tube 1.11 is driven by the radial feeding motor 1.8 to realize radial expansion; the tension detection roller 1.6 is connected to the rotary disk 1.3 in a sliding way through the T-shaped groove 1.31, the fixed roller 1.15 is fixed on the rotary disk 1.3 and is connected with the tension detection roller 1.6 through the spring 1.16, and a certain buffer effect can be achieved on the real-time change of the tension by utilizing the good mechanical property of the spring 1.16; when the real-time tension detected by the tension detection roller 1.6 is 0, the yarn breakage phenomenon of the yarn bundle is proved, and the yarn feeding method can be adopted for yarn feeding.
The extension lines of the yarn outlet ends of all yarn feeding tubes 1.11 are intersected on the central axis of the core mould to be wound, and the interval between two adjacent intersection points is a fiber bandwidth; the yarn feeding tube 1.11 is of a slide type structure, wherein one section of the yarn feeding tube 1.11, which is close to the yarn outlet, is a gentle section, one end, which is far away from the yarn outlet, is an inclined section, a flat yarn feeding channel is formed in the yarn feeding tube 1.11, so that yarns are conveniently led into the yarn feeding tube 1.11 from the guide roller 1.5, both ends of the yarn feeding tube 1.11 are rounded, and the possibility of yarn breakage in the yarn feeding and yarn outlet processes is reduced. The sliding block 1.10 comprises a nut in threaded connection with the screw rod 1.9 and a nut supporting seat sleeved on the outer side of the nut, the nut supporting seat is in sliding clamping connection with the track 1.23, and the yarn feeding tube 1.11 is fixedly connected with the nut supporting seat through a cushion block 1.17; the screw 1.9 and the radial feed motor 1.8 are connected through a coupling 1.18, and a group of stop blocks 1.19 and screw supporting seats 1.20 are arranged at two ends of the screw 1.9. An angular contact ball bearing is arranged between one screw rod supporting seat 1.20 and the screw rod 1.9, a fixed seat sleeve is sleeved between the angular contact ball bearing and the screw rod supporting seat 1.20, and a locking nut is arranged between the fixed seat sleeve and the screw rod 1.9; the other screw rod supporting seat 1.20 is connected with the screw rod 1.9 through a deep groove ball bearing and a clamp spring. The rotary disk 1.3 is fixedly connected with the inner ring of the first rotary support 1.2 through a first connecting shaft 1.21, and the inner ring of the first rotary support 1.2 is provided with inner teeth which are in meshed transmission with a first power source gear 1.22 of the first power source.
The first yarn breaking unit comprises a first linear module 1.13 and a first cutter 1.14, the first linear module 1.13 is fixed on a guide frame 1.7, the first linear module 1.13 and the first cutter 1.14 are parallel to a yarn feeding tube 1.11, the first cutter 1.14 is located at one side of the guide frame 1.7, far away from a rotating disc 1.3, the first cutter 1.14 is fixedly connected with a sliding block of the first linear module 1.13 and can radially stretch and retract under the drive of a motor of the first linear module 1.13 so as to realize the cutting of fiber yarn bundles between an auxiliary yarn feeding device and a core die.
As shown in fig. 5 to 7, the auxiliary yarn feeding device comprises a second frame 2.1, a second rotary support 2.2, a first transmission gear 2.3, four yarn clamping components and a second yarn breaking unit; the outer ring of the second rotary support 2.2 is fixedly connected to the second frame 2.1, the inner ring is fixedly connected to the first transmission gear 2.3, and the first transmission gear 2.3 can rotate under the drive of the second power source; the four yarn clamping assemblies are arranged along the circumferential direction of the first transmission gear 2.3 and are rotationally connected with the first transmission gear 2.3, each yarn clamping assembly is independently controlled, and the clamping and winding of the fiber yarn bundles can be realized under the action of a third power source corresponding to each yarn clamping assembly; the yarn clamping components of the auxiliary yarn feeding device are in one-to-one correspondence with the yarn feeding units of the rotating disc 1.3 of the circumferential winding device, and the yarn clamping components and the yarn feeding units are matched to realize auxiliary yarn feeding of a plurality of fiber yarn bundles; the second yarn breaking unit is used for cutting off the fiber yarn bundles wound on the outer side of the yarn clamping assembly after the auxiliary yarn feeding is completed.
The second frame 2.1 is of a disc-shaped structure, the lower end of the second frame is connected with a clamping piece 2.15, and the clamping piece 2.15 is in sliding connection with the guide rail 3 through a sliding piece 5; the second frame 2.1 is fixedly connected with the outer ring of the second rotary support 2.2 through a second connecting shaft 2.16, the first transmission gear 2.3 is fixed with the inner ring bolt of the second rotary support 2.2, and the first transmission gear 2.3 is meshed with the second power source gear 2.17 of the second power source for transmission; the first power source, the second power source and the third power source all comprise a driving motor and a power source gear.
In the embodiment, the yarn clamping assembly comprises a second transmission gear 2.4, a worm shaft 2.5, a first worm wheel with a connecting rod 2.6, a second worm wheel with a connecting rod 2.7, a first yarn clamping claw 2.8, a second yarn clamping claw 2.9 and a clamping plate 2.10; the second transmission gear 2.4 is in meshed transmission with a third power source gear 2.18 of a third power source, the worm shaft 2.5 is connected with the second transmission gear 2.4 through a key, and one end of the worm shaft 2.5 away from the second transmission gear 2.4 rotates to pass through the first transmission gear 2.3 and is in meshed transmission with the first worm gear 2.6 with the connecting rod and the second worm gear 2.7 with the connecting rod; the first worm wheel 2.6 with the connecting rod and the second worm wheel 2.7 with the connecting rod are rotatably connected in the clamping plate 2.10 through a pin shaft, the clamping plate 2.10 is rotatably connected with the first connecting rod 2.11 and the second connecting rod 2.12 through the pin shaft, the connecting rod of the worm wheel 2.6 with the connecting rod and the first connecting rod 2.11 are respectively rotatably connected with the claw arm of the first yarn clamping claw 2.8 through the pin shaft, and compared with the first connecting rod 2.11, the connecting rod of the worm wheel 2.6 with the connecting rod is far away from the first yarn clamping claw 2.8; the connecting rod of the second worm gear 2.7 with the connecting rod and the second connecting rod 2.12 are respectively connected with the claw arm of the second yarn clamping claw 2.9 in a rotating way through a pin shaft, and compared with the second connecting rod 2.12, the connecting rod of the worm gear 2.7 with the connecting rod is far away from the second yarn clamping claw 2.9; the first clamping claw 2.8 and the second clamping claw 2.9, the first connecting rod 2.11 and the second connecting rod 2.12, the first worm wheel with connecting rod 2.6 and the second worm wheel with connecting rod 2.7 are symmetrically arranged on the central axis of the worm shaft 2.5.
The second yarn breaking unit comprises a second linear module 2.13 and a second cutting knife 2.14, the second linear module 2.13 is fixed at the rear end of the jaw head of the first yarn clamping jaw 2.8, the plane where the second cutting knife 2.14 is located is perpendicular to the upper end face of the jaw head of the first yarn clamping jaw 2.8, and the second cutting knife 2.14 is fixedly connected with the sliding block of the second linear module 2.13 and can radially stretch and retract under the drive of a motor of the second linear module 2.13 so as to cut off fiber yarn bundles wound on the outer side of the first yarn clamping jaw 2.8.
As shown in fig. 8 to 15, the present invention further provides a yarn feeding method of a multi-tow fiber hoop winding device capable of automatically feeding yarns, based on the multi-tow fiber hoop winding device capable of automatically feeding yarns, comprising the steps of:
s1: the first power source drives the rotary disk 1.3 to rotate, so that the yarn outlet end of the yarn feeding pipe 1.11 on the first rotary disk 1.3 is vertically downward;
s2: the second power source drives the first transmission gear 2.3 to rotate until the position of the head of the yarn clamping assembly is aligned with the yarn outlet end of the yarn feeding tube 1.11 corresponding to the head of the yarn clamping assembly; the third power source drives the second transmission gear 2.4 to rotate, so that the yarn clamping assemblies rotate relative to the first transmission gear 2.3, and the angles of the heads of the yarn clamping assemblies and the yarn outlet end of the corresponding yarn feeding tube 1.11 are respectively adjusted to be mutually perpendicular;
s3: the mandrel 6 is installed, the auxiliary yarn feeding device is driven to approach the circumferential winding device, meanwhile, the first yarn clamping claw 2.8 and the second yarn clamping claw 2.9 of the first yarn clamping assembly are controlled to open by a preset angle through a third power source and a worm gear mechanism, interference between the second cutting knife 2.14 and the first connecting rod 2.11 caused by overlarge angle is avoided, and the rest groups of first yarn clamping claws 2.8 and second yarn clamping claws 2.9 are kept closed;
s4: under the action of gravity, the fiber yarn bundles of the yarn feeding tube 1.11 on the first rotary disc 1.3 drop downwards, and when the yarn bundles fall into the first yarn clamping claw 2.8 and the second yarn clamping claw 2.9 of the first yarn clamping assembly, the auxiliary yarn feeding device stops moving; the first yarn clamping claw 2.8 and the second yarn clamping claw 2.9 are controlled to be closed and rotate by a third power source and a worm and gear mechanism, so that the fiber yarn bundle 7 is wound on the outer sides of the two yarn clamping claws;
s5: the auxiliary yarn feeding device is driven to move a distance away from the annular winding device, the first power source drives the rotary disc 1.3 to rotate, so that the second rotary disc 1.3 rotates to the position of the previous first rotary disc 1.3, and the second power source drives the first transmission gear 2.3 to rotate, so that the second yarn clamping assembly rotates to the position of the previous first yarn clamping assembly;
s6: the auxiliary yarn feeding device is driven to approach the circumferential winding device, and simultaneously, the first yarn clamping claw 2.8 and the second yarn clamping claw 2.9 of the second yarn clamping assembly are controlled to open by a preset angle through a third power source and a worm gear mechanism, and when yarn bundles on the second rotating disc 1.3 fall into the first yarn clamping claw 2.8 and the second yarn clamping claw 2.9 of the second yarn clamping assembly, the auxiliary yarn feeding device stops moving; the first yarn clamping claw 2.8 and the second yarn clamping claw 2.9 are controlled to be closed and rotate by a third power source and a worm and gear mechanism, so that the fiber yarn bundle 7 is wound on the outer sides of the two yarn clamping claws;
s7: referring to steps S5, S6, the fiber yarn bundles 7 of the yarn feeding tube 1.11 on each rotating disc 1.3 are wound on the outer sides of the two yarn clamping claws corresponding to the fiber yarn bundles 7;
s8: driving the auxiliary yarn feeding device to move a distance away from the annular winding device, and radially feeding all yarn feeding tubes 1.11 under the driving of respective radial feeding motors 1.8; stopping feeding when the yarn outlet end of the yarn feeding tube 1.11 is at a preset distance from the mandrel body; the first power source drives all the rotating discs 1.3 to rotate, the stacking-free and gapless circumferential winding with the width of a plurality of yarn bundles is carried out, after winding for 2-3 circles, the output of the first power source is cut off, and the rotating discs 1.3 stop rotating; the first cutters 1.14 on all the guiding frames 1.7 are driven by the motor of the first linear module 1.13 to radially feed and cut off the fiber yarn bundles 7 between the auxiliary yarn feeding device and the core mould;
s9: after the yarn feeding is finished, all the second cutting knives 2.14 are driven by a motor of the second linear module 2.13 to radially feed and cut off fiber yarn bundles wound on the outer sides of the first yarn clamping claw 2.8 and the second yarn clamping claw 2.9; simultaneously, the annular winding device integrally moves axially, and simultaneously all yarn feeding tubes rotate in the annular direction 1.11, so that the mandrel is subjected to stacking-free and gapless annular winding with the width of a plurality of yarn bundle bandwidths.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the technical scope of the present invention should be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides a but automatic yarn feeding's many tows fibre hoop winding equipment which characterized in that: the device comprises a circumferential winding device, an auxiliary yarn feeding device, a guide rail (3) and two clamping mechanisms (4), wherein the circumferential winding device and the auxiliary yarn feeding device are positioned between the two clamping mechanisms (4) and are in sliding connection with the guide rail (3), the clamping mechanisms (4) are used for rotationally clamping a core mold to be wound, and the circumferential winding device, the auxiliary yarn feeding device and the core mold are coaxially arranged;
the circumferential winding device comprises a first frame (1.1), a first rotary support (1.2), at least two rotary discs (1.3), a yarn feeding unit and a first yarn breaking unit; the outer ring of the first rotary support (1.2) is fixed on the first frame (1.1), the inner ring can rotate under the drive of the first power source, all the rotary discs (1.3) are fixedly connected to the inner ring of the first rotary support (1.2), and two adjacent rotary discs (1.3) are arranged in the axial direction of a core mould to be wound at intervals by one fiber yarn bundle bandwidth, so that stacking-free and gapless circumferential winding of multiple yarn bundle bandwidths is realized; a yarn feeding unit and a first yarn breaking unit are arranged on any rotating disc (1.3), wherein the yarn feeding unit is used for realizing yarn discharging of fiber yarn bundles, and the first yarn breaking unit is used for realizing cutting of the fiber yarn bundles between an auxiliary yarn feeding device and a core mould after auxiliary yarn feeding is completed;
the auxiliary yarn feeding device comprises a second frame (2.1), a second rotary support (2.2), a first transmission gear (2.3), at least two yarn clamping assemblies and a second yarn breaking unit; the outer ring of the second rotary support (2.2) is fixedly connected to the second frame (2.1), the inner ring is fixedly connected to the first transmission gear (2.3), and the first transmission gear (2.3) can rotate under the drive of the second power source; all yarn clamping components are arranged along the circumferential direction of the first transmission gear (2.3) and are rotationally connected with the first transmission gear (2.3), each yarn clamping component is independently controlled, and the clamping and winding of fiber yarn bundles can be realized under the action of a third power source corresponding to each yarn clamping component; the yarn clamping components of the auxiliary yarn feeding device are in one-to-one correspondence with yarn feeding units of a rotating disc (1.3) of the circumferential winding device, and the yarn clamping components and the yarn feeding units are matched to realize auxiliary yarn feeding of a plurality of fiber yarn bundles; the second yarn breaking unit is used for cutting off the fiber yarn bundles wound on the outer side of the yarn clamping assembly after the auxiliary yarn feeding is completed.
2. An automatic yarn feeding multi-strand fiber hoop winding device according to claim 1, wherein: the yarn feeding unit comprises a yarn discharging roller (1.4), a guide roller (1.5), a tension detecting roller (1.6), a guide rack (1.7), a radial feeding motor (1.8), a screw rod (1.9), a sliding block (1.10) and a yarn feeding tube (1.11), wherein the yarn discharging roller (1.4) is arranged on a rotating disc (1.3) and can control the tension of a discharged yarn bundle through a servo motor (1.12), the guide roller (1.5) is fixedly connected on the rotating disc (1.3) and is used for guiding the fiber yarn bundle, and the tension detecting roller (1.6) is arranged on the rotating disc (1.3) and is used for detecting the change of the tension in real time; the guide frame (1.7) is fixedly connected to one side edge of the rotary disc (1.3), the radial feeding motor (1.8), the screw rod (1.9), the sliding block (1.10) and the track (1.23) form a linear reciprocating mechanism, the yarn feeding tube (1.11) is fixedly connected to the sliding block (1.10) and is arranged in the guide groove (1.71) of the guide frame (1.7), and the yarn feeding tube (1.11) is driven by the radial feeding motor (1.8) to realize radial expansion;
the first yarn breaking unit comprises a first linear module (1.13) and a first cutting knife (1.14), the first linear module (1.13) is fixed on a guide rack (1.7), the first linear module (1.13) and the first cutting knife (1.14) are parallel to a yarn feeding tube (1.11), and the first cutting knife (1.14) is fixedly connected with a sliding block of the first linear module (1.13) and can radially stretch out and draw back under the drive of a motor of the first linear module (1.13) so as to realize the cutting of fiber yarn bundles between an auxiliary yarn feeding device and a core die.
3. An automatic yarn feeding multi-strand fiber hoop winding device according to claim 2, wherein: the tension detection roller (1.6) is connected to the rotary disc (1.3) in a sliding way through the T-shaped groove (1.31), the yarn feeding unit further comprises a fixed roller (1.15), the fixed roller (1.15) is fixed on the rotary disc (1.3) and is connected with the tension detection roller (1.6) through a spring (1.16), and the tension detection roller can play a role in buffering tension changes in real time; the rotary disk (1.3) is fixedly connected with the inner ring of the first rotary support (1.2) through a first connecting shaft (1.21), and the inner ring of the first rotary support (1.2) is provided with inner teeth which are in meshed transmission with a first power source gear (1.22) of the first power source.
4. A multi-strand fiber hoop winding apparatus for automatically feeding yarns as claimed in claim 3, wherein: the yarn feeding tube (1.11) is of a slide type structure, a flat yarn feeding channel is formed in the yarn feeding tube (1.11), and both ends of the yarn feeding tube (1.11) are rounded; the sliding block (1.10) comprises a nut in threaded connection with the screw rod (1.9) and a nut supporting seat sleeved on the outer side of the nut, and the nut supporting seat is in sliding clamping connection with the track (1.23); the yarn feeding tube (1.11) is fixedly connected with the nut supporting seat through a cushion block (1.17); the screw rod (1.9) is connected with the radial feeding motor (1.8) through the coupler (1.18), and a group of stop blocks (1.19) and screw rod supporting seats (1.20) are arranged at two ends of the screw rod (1.9).
5. An automatic yarn feeding multi-strand fiber hoop winding device according to claim 4, wherein: the extension lines of the yarn outlet ends of all yarn feeding tubes (1.11) are intersected on the central axis of a core mold to be wound, and the interval between two adjacent intersection points is a fiber bandwidth; the first cutting knife (1.14) is positioned on the side of the guiding frame (1.7) away from the rotating disc (1.3).
6. An automatic yarn feeding multi-strand fiber hoop winding device according to claim 5, wherein: the yarn clamping assembly comprises a second transmission gear (2.4), a worm shaft (2.5), a first worm wheel with a connecting rod (2.6), a second worm wheel with a connecting rod (2.7), a first yarn clamping claw (2.8), a second yarn clamping claw (2.9) and a clamping plate (2.10);
the second transmission gear (2.4) is in meshed transmission with a third power source gear (2.18) of a third power source, the worm shaft (2.5) is connected with the second transmission gear (2.4) through a key, and one end of the worm shaft (2.5) far away from the second transmission gear (2.4) rotates to pass through the first transmission gear (2.3) and is in meshed transmission with the first worm gear (2.6) with the connecting rod and the second worm gear (2.7) with the connecting rod;
the first worm wheel (2.6) with the connecting rod and the second worm wheel (2.7) with the connecting rod are rotationally connected in the clamping plate (2.10) through pin shafts, the clamping plate (2.10) is rotationally connected with the first connecting rod (2.11) and the second connecting rod (2.12) through pin shafts, the connecting rod of the worm wheel (2.6) with the connecting rod and the first connecting rod (2.11) are respectively rotationally connected with the claw arm of the first yarn clamping claw (2.8) through pin shafts, and the connecting rod of the worm wheel (2.7) with the connecting rod and the second connecting rod (2.12) are respectively rotationally connected with the claw arm of the second yarn clamping claw (2.9) through pin shafts; the first yarn clamping claw (2.8) and the second yarn clamping claw (2.9), the first connecting rod (2.11) and the second connecting rod (2.12), the first worm wheel with the connecting rod (2.6) and the second worm wheel with the connecting rod (2.7) are symmetrically arranged on the central axis of the worm shaft (2.5).
7. The automatic yarn feeding multi-strand fiber hoop winding device of claim 6, wherein: the second yarn breaking unit comprises a second linear module (2.13) and a second cutting knife (2.14), the second linear module (2.13) is fixed at the rear end of the claw head of the first yarn clamping claw (2.8), the plane where the second cutting knife (2.14) is located is perpendicular to the claw head upper end face of the first yarn clamping claw (2.8), and the second cutting knife (2.14) is fixedly connected with the sliding block of the second linear module (2.13) and can radially stretch out and draw back under the drive of the motor of the second linear module (2.13) so as to cut off fiber yarn bundles wound on the outer side of the first yarn clamping claw (2.8).
8. The automatic yarn feeding multi-strand fiber hoop winding device of claim 7, wherein: the second frame (2.1) is of a disc-shaped structure, the lower end of the second frame is connected with a clamping piece (2.15), and the clamping piece (2.15) is in sliding connection with the guide rail (3) through a sliding piece (5); the second frame (2.1) is fixedly connected with the outer ring of the second rotary support (2.2) through a second connecting shaft (2.16), the first transmission gear (2.3) is fixed with the inner ring bolt of the second rotary support (2.2), and the first transmission gear (2.3) is meshed with the second power source gear (2.17) of the second power source for transmission; the first frame (1.1) and the two clamping mechanisms (4) are both connected with the guide rail (3) in a sliding way through a sliding piece (5).
9. The automatic yarn feeding multi-strand fiber hoop winding device of claim 8, wherein: the number of the rotating disc (1.3) and the yarn clamping assemblies is four.
10. A method for feeding a multi-tow fiber loop winding device capable of feeding yarn automatically, based on the multi-tow fiber loop winding device capable of feeding yarn automatically according to any one of claims 7 to 9, characterized in that: the method comprises the following steps:
s1: the first power source drives the rotary disk (1.3) to rotate, so that the yarn outlet end of the yarn feeding pipe (1.11) on the first rotary disk (1.3) is vertically downward;
s2: the second power source drives the first transmission gear (2.3) to rotate until the position of the head of the yarn clamping assembly is aligned with the yarn outlet end of the yarn feeding tube (1.11) corresponding to the head of the yarn clamping assembly; the third power source drives the second transmission gear (2.4) to rotate, so that the yarn clamping assemblies rotate relative to the first transmission gear (2.3), and the angles of the heads of the yarn clamping assemblies and the yarn outlet ends of the corresponding yarn feeding tubes (1.11) are respectively adjusted to be mutually perpendicular;
s3: the method comprises the steps of installing a core mould, driving an auxiliary yarn feeding device to approach to a circumferential winding device, controlling a first yarn clamping claw (2.8) and a second yarn clamping claw (2.9) of a first yarn clamping assembly to open by a preset angle through a third power source and a worm and gear mechanism, and keeping the rest groups of first yarn clamping claws (2.8) and second yarn clamping claws (2.9) closed;
s4: under the action of gravity, the fiber yarn bundles of the yarn feeding tube (1.11) on the first rotary disc (1.3) drop downwards, and when the yarn bundles fall into the first yarn clamping claw (2.8) and the second yarn clamping claw (2.9) of the first yarn clamping assembly, the auxiliary yarn feeding device stops moving; the first yarn clamping claw (2.8) and the second yarn clamping claw (2.9) of the group are controlled to be closed and rotate through a third power source and a worm and gear mechanism, so that the fiber yarn bundles are wound on the outer sides of the two yarn clamping claws;
s5: the auxiliary yarn feeding device is driven to move a certain distance away from the annular winding device, the first power source drives the rotating disc (1.3) to rotate, so that the second rotating disc (1.3) rotates to the position of the first rotating disc (1.3) before the second rotating disc, and the second power source drives the first transmission gear (2.3) to rotate, so that the second yarn clamping assembly rotates to the position of the first yarn clamping assembly before the second yarn clamping assembly;
s6: the auxiliary yarn feeding device is driven to approach the annular winding device, and simultaneously, a third power source and a worm gear mechanism are used for controlling a first yarn clamping claw (2.8) and a second yarn clamping claw (2.9) of the second yarn clamping assembly to open by a preset angle, and when a yarn bundle on the second rotating disc (1.3) falls into the first yarn clamping claw (2.8) and the second yarn clamping claw (2.9) of the second yarn clamping assembly, the auxiliary yarn feeding device stops moving; the first yarn clamping claw (2.8) and the second yarn clamping claw (2.9) of the group are controlled to be closed and rotate through a third power source and a worm and gear mechanism, so that the fiber yarn bundles are wound on the outer sides of the two yarn clamping claws;
s7: referring to steps S5, S6, the fiber yarn bundles of the yarn feeding tube (1.11) on each rotating disc (1.3) are wound on the outer sides of the two yarn clamping claws corresponding to the fiber yarn bundles;
s8: driving the auxiliary yarn feeding device to move a distance away from the annular winding device, and radially feeding all yarn feeding tubes (1.11) under the driving of respective radial feeding motors (1.8); stopping feeding when the yarn outlet end of the yarn feeding tube (1.11) is away from the mandrel body by a preset distance; the first power source drives all the rotating discs (1.3) to rotate, the stacking-free and gapless circumferential winding with the width being the width of a plurality of yarn bundles is carried out, after a plurality of circles of winding, the output of the first power source is cut off, and the rotating discs (1.3) stop rotating; the first cutters (1.14) on all the guiding frames (1.7) are driven by the motors of the first linear modules (1.13) to radially feed and cut off fiber yarn bundles between the auxiliary yarn feeding device and the core mould;
s9: after the yarn feeding is finished, all the second cutting knives (2.14) are driven by a motor of the second linear module (2.13) to radially feed and cut off fiber yarn bundles wound on the outer sides of the first yarn clamping claw (2.8) and the second yarn clamping claw (2.9); simultaneously, the whole annular winding device axially moves, and simultaneously all yarn feeding tubes (1.11) rotate in an annular direction, so that the mandrel is subjected to stacking-free and gapless annular winding with the width of a plurality of yarn bundle bandwidths.
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| CN116811302B (en) | 2023-10-27 |
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