A manufacturing method for an optical fiber tape core wire, wherein the optical fiber tape core wire including a plurality of single-core coated optical fibers is manufactured while moving the plurality of single-core coated optical fibers from upstream to downstream, the plurality of single-core coated optical fibers being partially coupled to each other, the method comprising:
- coating the plurality of single-core coated optical fibers with a resin in an uncured state, the plurality of single-core coated optical fibers being disposed in parallel;
- partially removing, by a removal part, the resin in the uncured state between, among the plurality of single-core coated optical fibers coated with the resin in the uncured state, a pair of the plurality of single-core coated optical fibers, the pair of the plurality of single-core coated optical fibers being adjacent to each other;
- and
- curing the resin in the uncured state remaining on the plurality of single-core coated optical fibers, wherein:
- the removal part includes:
- a plurality of rotary blades each of which is disposed so as to be located between the pair of the plurality of single-core coated optical fibers adjacent to each other and intermittently extrudes the resin in the uncured state between the pair of the plurality of single-core coated optical fibers adjacent to each other;
- a positioning part including:
- a through-hole through which the plurality of single-core coated optical fibers coated with the resin in the uncured state passes;
- a plurality of slits each communicating with the through-hole, the plurality of slits being a plurality of slits inside which the plurality of rotary blades rotates, respectively;
- a plurality of outlet openings of the plurality of slits, the plurality of outlet openings being a plurality of outlet openings through which the resin extruded by the plurality of rotary blades comes out;
- and
- a positioning part main body in which the through-hole, the plurality of slits, and the plurality of outlet openings are formed;
- and
- a suction part including a suction opening, the suction opening being disposed so as to cover the plurality of outlet openings,
- the positioning part includes, along a moving direction of the plurality of single-core coated optical fibers, an upstream-side portion and a downstream-side portion,
- the through-hole is disposed in the upstream-side portion,
- the plurality of rotary blades, the plurality of slits, and the plurality of outlet openings are disposed in the downstream-side portion,
- downstream-side end portions of the plurality of slits open to a front surface of the positioning part main body, the front surface being a downstream-side surface of the positioning part main body,
- the plurality of outlet openings opens to a downstream-side end portion of the positioning part, the downstream-side end portion of the positioning part being an end portion of the positioning part on a downstream side of a moving direction of the plurality of single-core coated optical fibers,
- a downstream-side end portion of the suction opening is disposed on a downstream side of downstream-side end portions of the plurality of outlet openings and the downstream-side end portion of the positioning part,
- the suction opening is disposed in a position opposing the plurality of outlet openings, and
- in the partially removing of the resin in the uncured state, the resin in the uncured state between the pair of the plurality of single-core coated optical fibers adjacent to each other is intermittently extruded to the plurality of outlet openings by rotating while moving the plurality of single-core coated optical fibers coated with the resin in the uncured state from upstream to downstream in the through-hole, and the resin in the uncured state extruded through the plurality of outlet openings is suctioned by the suction part.