| 摘要 |
A spiral pipe manufacturing apparatus is provided to prevent deformation of thin plate materials for making spiral pipes by conveying the plate materials through a plurality of feed rollers. A spiral pipe manufacturing apparatus comprises a plate(10), a plurality of support rollers(21) supporting the rolled plate, a driving part(20) made up of a driving roller(24) unrolling the rolled plate, first and second compression parts consisting of compression rollers compressing the plate in order to stretch the unrolled plate into a band shape, a bracket which supports the plate transferred, a conveying unit consisting of a plurality of feed rollers located at regular intervals in the longitudinal direction, a plurality of forming rollers making the band-like plate into a cylindrical spiral pipe, a guide roller supporting the spiral pipe formed through the forming rollers, and a forming unit made up of welding machine bonding both sides of the rolled plate.
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