B - Operations – Transporting – 21 – C
Patent
B - Operations, Transporting
21
C
113/52
B21C 37/12 (2006.01)
Patent
CA 1251097
ABSTRACT An apparatus for producing multiple ribbed, spiral seamed pipe from a metal strip thinner than 29 gauge is disclosed. The apparatus includes the conven- tional elements of a frame, a drive roller for feeding the strip through the frame, a flange'roller and fold- ing finger for bending the outer edges of the metal strip, a forming head for forming the strip into a pipe so that the outer edges of the strip mate, and a clinch- ing roller and contra roller for compressing the mated edges to produce a spiral seam. The present invention improves this conventional apparatus by providing only two pairs of edge forming roller assemblies that co- operate to bend the left edge of the strip perpendicular to the strip, and the right edge of the strip into an upward facing, V-shaped channel with its outer edge perpendicular with respect to the strip. Five pairs of corrugation rollers are mounted on the frame adjacent to the edge forming roller assemblies. These corruga- tion rollers cooperate to form three continuous, open- channel corrugation grooves in the metal strip. Each succeeding corrugation roller pair forms the corruga- tion grooves deeper and narrower than the preceding pair. Three pairs of squeezer assemblies are mounted in the frame adjacent to the corrugation roller means to squeeze together the sides of the corrugation grooves to produce three parallel support ribs for the pipe.
470404
Ridout & Maybee Llp
Spiro America Inc.
LandOfFree
Ribbed spiral pipe producing machine does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Ribbed spiral pipe producing machine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ribbed spiral pipe producing machine will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1330336