Apparatus for producing tubes or rings consisting of pleated flexible tubing.

摘要

An annular container (20) mounted at the base of a passage between a layering tube (15) and a central mandrel (6) is charged with a layered tube of flexible tubing (22) delivered over a floating mandrel (5) when coaxially in contact with mandrel (6) by driving rollers (32) coacting with pinch rollers (48) on the floating mandrel (5). The tubing passes over the mandrel (6) and gathers in the layering tube (5) while being compacted by two sets of shoes (4, 4a) reciprocated 180 DEG out of phase by rotating discs (53, 53a) and connecting rods. When sufficient tubing has been delivered the floating mandrel is raised to enable a hot wire to pass between the mandrels to sever the tubing (22). The layering tube (15) and central mandrel (6) with the container (20) can then be carried by a turntable (21) through further stationary positions where the layered tubing is further compressed by reciprocable rings, a lid is put on the container (20) to form a cassette and the cassette is discharged.