APPARATUS AND METHOD FOR MANUFACTURING THREE-DIMENSIONAL NET-LIKE STRUCTURE

摘要

The object is to improve the production efficiency of three-dimensional net-like structures while maintaining the surface quality of the three-dimensional net-like structures. A second chute 6 is located below a hole-free region 33 and is provided between first chutes 4a and 4b. Filaments 20a and 20b located on longitudinal sides 22b and 22c at the periphery of assemblies 21a and 21b are in contact with the upper side of inclined surfaces 46a and 46b of the second chute 6. Such contact disturbs the vertical fall of the filaments 20a and 20b and causes the filaments 20a and 20b to be tangled in loops with the adjacent filaments 20a and 20b and pass through the first chutes 4a and 4b and the second chute 6, while being cooled down with water supplied from openings 51a, 51b and 51c.

主权项

1. A three-dimensional net-like structure manufacturing apparatus, comprising:
a nozzle configured to have hole groups in multiple rows and a hole-free region without formation of holes formed between the hole groups, wherein assemblies of melted filaments are extruded downward and fall from the holes in multiple rows; a pair of first chutes provided below the nozzle, arranged to face each other across a space and configured to have first inclined surfaces downward inclined toward the assemblies; a first water supply port configured to supply water to the first inclined surfaces; a second chute provided in the space between the pair of first chutes and below the free-hole region and configured to have second inclined surfaces facing the first inclined surfaces; a second water supply port configured to supply water to the second inclined surfaces; and a pair of haul-off machines provided below the first chutes and partly or fully submerged to be in contact with and convey the assemblies in water;wherein when the assemblies pass through between the first chutes and the second chute, the filaments are tangled irregularly and thermally fused to form three-dimensional net-like structures.