Patent ID: 6311379
Filing Date: 2001-11-06
Classification: B21D,Y10T

Abstract:
A folding machine for producing folded seam connections between partial surfaces of a flat material forming at least a segment of a pipe, the folding machine comprising a machine stand;a first wheel rotatably supported on said machine;supporting and guiding means on said machine stand for carrying out a guided movement towards and away from said first wheel;a second wheel displaceably supported on said supporting and guiding means to be displaced towards and away from said first wheel from an inoperative position into an operative position in which it engages a partial surface of said flat material and holds it against said first wheel;bearing means movably guided on said folding machine;a closing disk rotatably supported on said bearing means to be moved towards and away from said second wheel by said bearing means from a release position to a pressing position and vice-versa, said closing disk having a marginal region about its circumference for engaging a partial seam surface of said flat material and to close the connection;a pivotal guiding arrangement for said bearing means and said closing disk to guide said closing disk from said release position to said pressing position and vice-versa by a pivoting motion combined with a linear displacement relative to said supporting and guiding means, said marginal region of said closing disk in the release position being remote from said second wheel thus enabling access to said second wheel, while being close to said second wheel in said pressing position.