A machine for cutting tubes is provided including a support table, at least two tube rests protruding from the table and arranged at a distance from one another, and a separating device arranged therebetween. The support table has a substantially flat tube-supporting surface, and the separating device has a cutting knife and a tube feed which can move parallel to the separating plane and has two thrust pieces arranged on both sides of the separating plane, each having a tube contact surface. At least one of the thrust pieces has a thrust piece attachment adjustably attached to a carrier and having tube contact surfaces.

A pipe cutting machine with a pipe (3), from which a pipe section (3a) is to be cut to size, a stationary cutting die (1), a movable cutting die (2) which can be moved relative to the stationary cutting die (1), and a cutting mandrel (13) which is introduced into the pipe (3) and which comprises a stationary mandrel (14) and a mandrel (16) that can be moved relative to the stationary mandrel (14). The cutting mandrel (13) is arranged in a cutting position during a cutting process, and the cutting mandrel (13) is arranged in the pipe (3) in a floating manner. A magnetic coupling (6) is provided with a coupling stator (7) arranged outside of the pipe (3) and a coupling rotor (21) arranged on the stationary mandrel (14).

A cutter includes an arc main body having a clamping groove in which a steel pipe may be putted, a plurality of bearings are mounted on the inner side of the main body, a fixed platform is arranged at the back end of the main body, a fixed block is fixed on the fixed platform, a lead-screw drive group penetrates the fixed block, the lead-screw drive group comprises a slide bar and a lead screw, the slide bar penetrates the fixed block, the lead screw is arranged on the slide bar and matches with the slide bar, a blade is mounted at the front end of the slide bar, the back end of the lead screw is connected with a gear drive group, the gear drive group is connected with a handle, and the fixed block is provided with a toothed fastener matching with a groove on the lead screw.

A pipe cutting machine comprises: rotary blades in a pair, with a plane at a right angle to a center line of a pipe, the rotary blades being arranged to face each other on both sides of a y axis in such a manner that blade edges of the rotary blades overlap each other in an x-axis direction; a straightforward driving mechanism that drives the rotary blades straightforward in opposite directions of a y-axis direction so as to make the rotary blades pass each other on the x axis and in the vicinity of the x axis; and power direction conversion mechanisms that move the rotary blades outwardly to get farther from the y axis for avoiding interference between the blade edges when the rotary blades pass each other on the x axis and in the vicinity of the x axis.

Machine for cutting to size rolls with a defined length from logs having a greater length using a conveyor belts to drive the log to a cutting blade. Photocells are used to determine the length of the longs and to assist with the overall workings of the machine.

A cutting unit to facilitate ejecting a slice that is cut off from a product strand a radial distance between a blade edge of the rotating blade. The functional edge of the stop plate may be adjusted during the cutting movement. In one embodiment, the functional edge of the stop plate may be adjusted at an end of the cutting movement.

Apparatus for moving logs (2) within cutting-off machines. The apparatus includes a platform (1) with one or more longitudinal channels (10) inside which the logs to be cut are disposed, and a pusher device (3) acting in correspondence of the platform (1) and intended for acting on the back of the logs (2) to push them, along respective guide channels (10), toward a cutting device (4) disposed downstream. The apparatus includes a clamping device (5) disposed intermediate between the pusher device (3) and the cutting device (4) and intended for engaging the logs (2) which are pushed along the channels (10) of platform (1) by the pusher device (3) and driving them along up to the cutting device (4).

The invention concerns a device and a method for guiding the blade (3) at the cutting end face (1a) of the guide tube (1) by means of magnetic force in order to bring the cutting spacing as close as possible, if possible to zero. According to the invention, the magnetic force is applied to the blade only towards the end of the cutting process of the slice (101), i.e. near the outlet side (2a) of the cutting edge (3a) from the guide tube cross-section (1.1, 1.2).

Apparatus for moving logs (2) within cutting-off machines. The apparatus includes a platform (1) with one or more longitudinal channels (10) inside which the logs to be cut are disposed, and a pusher device (3) acting in correspondence of the platform (1) and intended for acting on the back of the logs (2) to push them, along respective guide channels (10), toward a cutting device (4) disposed downstream. The apparatus includes a clamping device (5) disposed intermediate between the pusher device (3) and the cutting device (4) and intended for engaging the logs (2) which are pushed along the channels (10) of platform (1) by the pusher device (3) and driving them along up to the cutting device (4).

A facer facing the ends of polyolefin pipes for butt fusion is modular in the sense that it employs three types of modules, a drive unit, two blade holders and a motor assembly, that are separable from one another and each independently light enough to be hand-lifted along walls and up to ceilings. The drive unit module is adjustable to accommodate different guide rail spacings. The blade holder modules are interchangeable to accommodate different diameters of pipe. The motor assembly module has multispeed capability to accommodate the total area of material to be faced. Each module can be exchanged or modified without use of tools to change the geometry of the assembled facer to accommodate different fusion machines and/or diameters of pipe within working spaces dictated by the diameter of the pipe and not by a fixed geometry of a facer.