Composite yarns

1 . A composite yarn, comprising:

a core filament located at a core of the composite yarn;

a first multifilament covering in parallel a peripheral surface of the core filament, wherein the first multifilament covering in parallel the peripheral surface of the core filament means that a length extension direction of the first multifilament and a length extension direction of the core filament are the same and parallel to each other;

a water-based adhesive distributed on a surface and inside of the first multifilament, wherein the water-based adhesive on the surface of the first multifilament forms a water-based adhesive layer, the water-based adhesive includes water-based polyurethane emulsion or polyacrylate emulsion, and a concentration of the water-based adhesive is within a range of 20-50 wt %;

a second multifilament uniformly covering in parallel a peripheral surface of the water-based adhesive layer, wherein the second multifilament covering in parallel the peripheral surface of the water-based adhesive layer means that a length extension direction of the second multifilament and the length extension direction of the first multifilament are the same and parallel to each other; and

a double-clad structure layer covering an outer side of the second multifilament, wherein

the double-clad structure layer is a clad structure of short fiber yarns, a clad structure of filaments, or a clad structure of short fiber yarns and filaments, and two layers of clad yarns of the double-clad structure layer are twisted in opposite directions;

both the first multifilament and the second multifilament are organic multifilaments or inorganic multifilaments;

the second multifilament is selected from a group consisting of ultra-high molecular weight polyethylene (UHMWPE), high-strength and low-elongation polyester, aramid 1414, or high-strength vinylon; and

a fineness of the core filament is within a range of 10-60 μm.

2 . The composite yarn of claim 1 , wherein the core filament includes metal fiber monofilaments, organic fiber filaments or inorganic fiber filaments.

3 . The composite yarn of claim 1 , wherein the first multifilament is an inorganic multifilament, the inorganic multifilament is a glass fiber multifilament or a basalt fiber multifilament, the second multifilament is a high-strength and low-elongation organic multifilament formed by high-strength and low-elongation polyester and aramid 1414, and a fineness of the high-strength and low-elongation organic multifilament is within a range of 150-400D.

4 . The composite yarn of claim 3 , wherein the inorganic multifilaments are inorganic fiber multifilaments, and a fineness of the inorganic fiber multifilaments is within a range of 50-200 D.

5 . The composite yarn of claim 1 , wherein a linear density of the composite yarn is within a range of 33.3 tex-72.2 tex.

6 . The composite yarn of claim 1 , wherein the short fiber yarns of the clad structure of short fiber yarns are selected from any pure spinning yarn or any two or more blended yarns of cotton, hemp, wool, polyester, nylon, and acrylic fibers; and a fineness of the short fiber yarns is within a range of 32-80 Ne, a twist coefficient is within a range of 260-420, and a covering twist is within a range of 400-800 twists/meter.

7 . The composite yarn of claim 6 , wherein the filaments of the clad structure of filaments are nylon filaments and/or polyester filaments; and a fineness of the filaments is within a range of 30-100 D, and a covering twist is within a range of 400-800 twists/meter.

8 . The composite yarn of claim 1 , wherein the composite yarn is obtained by performing double cladding on a second clad filament bundle; the second clad filament bundle is obtained by covering a composite monofilament with the second multifilament; the composite monofilament is obtained by performing a dipping treatment, post-processing, and a drying and cooling treatment on a first clad filament bundle; and the first clad filament bundle is formed by covering in parallel a peripheral surface of the core filament with the first multifilament; wherein

the dipping treatment is performed based on dipping parameters, and the dipping parameters include water-based adhesive parameters and dipping treatment time; and the post-processing is performed based on post-processing parameters; and the post-processing parameters include at least a post-processing mode.

9 . The composite yarn of claim 8 , wherein when the second multifilament covers the composite monofilament, a tension of the second multifilament is within a third preset tension range, and a tension of the composite monofilament is within a fourth preset tension range; and the third preset tension range and the fourth preset tension range are determined based on specification parameters of the core filament, the first multifilament and the second multifilament.

10 . The composite yarn of claim 9 , wherein the dipping parameters are related to the specification parameters of the core filament and the first multifilament;

the post-processing parameters are related to the specification parameters of the core filament and the first multifilament, and the dipping parameters; and

the third preset tension range and the fourth preset tension range are determined based on the dipping parameters, the post-processing parameters, drying parameters and cooling parameters.

11 . The composite yarn of claim 10 , wherein the third preset tension range and the fourth preset tension range are determined based on a plurality of reference third preset tension ranges and a plurality of reference fourth preset tension range;

the plurality of reference third preset tension ranges and the plurality of reference fourth preset tension ranges correspond to one or more third correlation vectors;

the one or more third correlation vectors are determined through a third vector database based on third target vectors; and

the third target vectors are constructed based on the specification parameters of the core filament, the first multifilament and the second multifilament, the dipping parameters, the post-processing parameters, the drying parameters, and the cooling parameters.

12 . The composite yarn of claim 11 , wherein the third preset tension range is determined by performing weighted summation on the plurality of reference third preset tension ranges corresponding to the plurality of third correlation vectors; and in response to that the third preset tension range is determined by performing weighted summation on the plurality of reference third preset tension ranges corresponding to the plurality of third correlation vectors, a weight of each reference third preset tension range is positively related to an abnormal correlation distance of the third correlation vector corresponding to the third preset tension range during weighting;

the fourth preset tension range is determined by performing weighted summation on the plurality of reference fourth preset tension ranges corresponding to the plurality of third correlation vectors; and in response to that the third preset tension range is determined by performing weighted summation on the plurality of reference fourth preset tension ranges corresponding to the plurality of third correlation vectors, a weight of each reference fourth preset tension range is positively related to an abnormal correlation distance of the third correlation vector corresponding to the fourth preset tension range during weighting; and

the abnormal correlation distance is used to reflect a time interval between a time corresponding to the third correlation vector and a time of a latest abnormal accident.

13 . The composite yarn of claim 1 , wherein the composite yarn is made based on a device for processing the composite yarn, and the device for processing the composite yarn includes a frame and a plurality of sets of processing devices arranged side by side on the frame; each set of processing devices includes a first guide composite mechanism arranged at one end of the frame, a dipping mechanism arranged below an output end of the first guide composite mechanism, a drying and cooling mechanism arranged in a middle of the frame and located downstream of the dipping mechanism, a second guide composite mechanism arranged at an output end of the drying and cooling mechanism, and a cladding mechanism arranged at an output end of the second guide composite mechanism;

the first guide composite mechanism includes a first feed roller unit connected with the frame, a first main godet wheel unit arranged at an inner side of the first feed roller unit, and a first auxiliary godet wheel unit arranged at an inlet end of the first main godet wheel unit; and

the first main godet wheel unit includes a first vertical screw connected with the frame, a first L-shaped bracket connected with a top of the first vertical screw, a first horizontal screw connected with the first L-shaped bracket, and a first V-shaped godet wheel arranged on the first horizontal screw.

14 . The composite yarn of claim 1 , wherein there is an included angle between a grain orientation of constituent filaments in the second multifilament and a grain orientation of constituent filaments in the first multifilament, and the included angle is within a range of 30°-90°.

15 . The composite yarn of claim 14 , wherein the core filament is made of metal material, the first multifilament is made of inorganic fiber multifilament, and the second multifilament is made of high-strength and low-elongation organic multifilament.

16 . The composite yarn of claim 15 , further comprising:

an insulating layer made of insulating materials covering an outer side of the double-clad structure layer to improve an insulation of the composite yarn, wherein the insulating materials include at least one of polyethylene, nylon and polyester.