| CPC B29C 70/24 (2013.01) [B29C 53/562 (2013.01); B29C 70/30 (2013.01); B29C 70/34 (2013.01); B29C 70/545 (2013.01); B29L 2031/712 (2013.01)] | 7 Claims |
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1. A method for manufacturing storage containers by spirally winding with multiple bundles of fibers, the method comprising:
spirally winding the storage containers with the multiple bundles of fibers to form wound containers by:
leading fiber tows out of yarn guide nozzles for carrying out spiral winding on surfaces of the storage containers,
wherein two sets of the yarn guide nozzles are distributed in a circumferential array in which a first set of the two sets constitute a first spiral winding structure and a second set of the two sets constitute a second spiral winding structure, and
wherein a spiral winding device with the first and second spiral winding structures cooperates with feeding devices carrying the storage containers so as to realize at least two layers of the spiral winding of the multiple bundles of fibers on the storage containers;
rotating the storage containers about an axis of the spiral winding device and moving the storage containers along an axial direction of the spiral winding device by the feeding devices; and
driving the spiral winding device to (i) move the first set of the yarn guide nozzles along a radial direction of first spiral winding structure and the second set of the yarn guide nozzles along a radial direction of second spiral winding structure, and (ii) rotate the yarn guide nozzles about their respective axes;
wherein the spiral winding device further comprises:
a rotary driving unit configured to drive the two sets of the yarn guide nozzles to rotate about their respective axes synchronously,
a first radial driving unit configured to drive the first set of the yarn guide nozzles of the first spiral winding structure to synchronously extend and retract the first set of the yarn guide nozzles along the radial direction of the first spiral winding structure, and
a second radial driving unit configured to drive the second set of the yarn guide nozzles of the second spiral winding structure to synchronously extend and retract the second set of the yarn guide nozzles along the radial direction of the second spiral winding structure, wherein the first radial driving unit and the second radial driving unit are located on two sides of the rotary driving unit and are connected to the rotary driving unit through two brackets, respectively;
wherein the first radial driving unit and the second radial driving unit have the same structure, and respectively comprise:
a driving gearwheel,
a first slewing bearing,
a radial guide frame, and
a plurality of radial sliding assemblies, wherein each of the plurality of radial sliding assemblies comprises:
a sliding block,
a conveying shaft,
a bevel gear rotating tube, and
a sliding spline rod;
wherein the driving gearwheels of the first and second radial driving units are rotationally connected to frame plates on first sides of the driving gearwheels through the first slewing bearings, respectively;
wherein the radial guide frames of the first and second radial driving units are fixedly connected to the two brackets on second sides of the driving gearwheels opposite to the first sides, respectively, and a plurality of guide grooves is circumferentially arrayed in each of the radial guide frames of the first and second radial driving units;
wherein the sliding blocks are disposed in the plurality of guide grooves in a sliding manner, respectively, and one side of each of the sliding blocks is provided with a cylindrical bulge matched with a curved groove of the corresponding driving gearwheel;
wherein each of the conveying shafts is installed in a corresponding sliding block of the sliding blocks through first bearings, and two ends of said each of the conveying shafts extend out of the corresponding sliding block of the sliding blocks;
wherein a corresponding yarn guide nozzle of the yarn guide nozzles and a corresponding sliding spline rod of the sliding spline rods are respectively connected to a front end and a tail end of a corresponding conveying shaft of the conveying shafts, each of inner walls of the bevel gear rotating tubes is sleeved with a corresponding sliding spline rod of the sliding spline rods in a sliding manner, the two brackets are provided with lantern rings for limiting movements of the bevel gear rotating tubes along the axial direction of the brackets, bevel gears on each of the bevel gear rotating tubes are disposed outside the plurality of guide grooves, and a respective gear of said each of the driving gearwheels is engaged with a driving mechanism;
wherein the rotary driving unit comprises:
inner and outer large gear rings,
a second slewing bearing, and
pinion synchronous transmission assemblies;
wherein the inner and outer large gear rings are rotationally connected to one of the two brackets through the second slewing bearing, and a plurality of sets of the pinion synchronous transmission assemblies is distributed and engaged on outer gear rings of the inner and outer large gear rings;
wherein each of the pinion synchronous transmission assemblies comprises:
two small circular gears engaged with the inner and outer large gear rings, and
two small bevel gears respectively and vertically engaged with the bevel gears on the bevel gear rotating tubes on two of the plurality of radial sliding assemblies of the first and second radial driving units;
wherein the two small circular gears are in key connection and arranged side by side and are respectively connected to the two small bevel gears on outer sides of the two small circular gears through connecting shafts;
wherein the connecting shafts penetrate through the two brackets and are installed on the two brackets through second bearings; and
wherein inner gear rings of the inner and outer large gear rings are engaged with another driving mechanism.
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