Machine (10) to produce straws (11), preferably made of paper, comprising a feed unit (16) configured to feed a plurality of tubular elements, preferably made of paper, to different working units (17, 19, 20, 21) configured to automatically carry out different workings on the tubular elements (12), including at least one cut to make a pointed end (13), or an end cut obliquely, a deformation to make a bellows (14), a bend in correspondence with the bellows (14) and the packaging of each straw (11).

The present disclosure relates to a duct cutting and forming apparatus for elbow duct manufacturing machine, the apparatus including a rotation housing that is provided with a seating groove in a first direction; an eccentric housing that is provided with a cutting roller and a forming roller at both ends, and that is slidably seated inside the seating groove; a rotation drive for applying rotation driving force to the rotation housing; and an eccentric drive for applying driving force for reciprocating the eccentric housing, wherein the eccentric drive reciprocates the eccentric housing as it rotates in both directions within a range not exceeding 180 degrees.

A method and apparatus for cutting a polymeric tubular member is provided. The method includes moving the polymeric tubular member along a central longitudinal axis into a position to be cut and providing a cutting blade operably connected to an actuator. The method further includes actuating the actuator to move the cutting blade conjointly along a straight linear axis. Then, bringing a cutting region of the cutting blade into cutting engagement with the polymeric tubular member, with the cutting region engaging the polymeric tubular member extending over a length of the cutting blade that is greater than a diameter of the polymeric tubular member.

An apparatus for forming and sealing a duct member for use in an air handling system. At least one work station accommodates a work piece, which is generally a cylindrical tube.

Described is an apparatus for processing a pipe made of thermoplastic material; each pipe extends along a longitudinal axis and has a first end and a second end; the apparatus comprises an element for chamfering a portion of the first end of the pipe the element comprising at least one processing tool having a respective processing surface; heating means associated with the processing tool are configured for heating the processing surface of the processing tool to a predetermined temperature.